JP6509982B2 - Fluid changer - Google Patents

Description

  The present invention relates to a fluid exchange device.

  Conventionally, a straw-like nozzle is inserted into a level gauge hole (filler tube) of a vehicle transmission, and after an old fluid is extracted, there is a fluid exchange device (see, for example, Patent Document 1) for injecting new fluid. The

Unexamined-Japanese-Patent No. 2-24251

Conventionally, a straw-like nozzle has been inserted into the level gauge hole (filler tube into which the level gauge is inserted), but in recent years, transmissions that do not require fluid replacement under normal operation have no level gauge. The holes for the level gauge (filler tube) are also eliminated. However, even in the case of a transmission that does not require fluid replacement under normal operation, it is recommended by the manufacturer etc. to replace fluid according to the driving situation (how to ride).
The transmission without a level gauge as described above includes an overflow tube attached to the drain port of the oil pan and an overflow plug attached to the outlet of the overflow tube, and the fluid is injected more heavily. After that, it is an overflow type that adjusts and checks the oil amount at the overflow. And, such an overflow type is required to adjust the amount of oil at an appropriate oil temperature.
This overflow-type transmission can not cope with the conventional fluid changer that inserts a straw-like nozzle into the level gauge hole, and the operator performed this manually. However, checking the oil temperature, adjusting the amount of oil, etc. While requiring a skilled workmanship, there was a problem that it took time and effort.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a fluid replacement device capable of performing fluid replacement of a transmission easily and quickly without skilled workmanship.

The fluid replacement device of the present invention is a fluid replacement device for replacing fluid in the oil pan of a vehicle transmission in which an overflow tube is attached to an oil pan, and is removable from the outlet of the overflow tube. An adapter member for attachment, a hose member to which the adapter member is attached at the tip, and a thermocouple for measuring the oil temperature of the fluid in the oil pan; was attached to the hose member, the upper Symbol thermocouple passes through the tip the adapter member and the overflow tube from above the hose member, tip as U-turn shape the fluid inside the liquid level of the fluid in the oil pan The thermocouple is attached to the hose member so as to be immersed.

Further, a fluid replacement device for replacing fluid in the oil pan of a vehicle transmission in which an overflow tube is attached to an oil pan, and an adapter for detachably attaching to the discharge port of the overflow tube. A hose member to which the adapter member is attached at its tip end, and a thermocouple for measuring the oil temperature of the fluid in the oil pan, and the thermocouple is attached to the hose member , comprising a pump for delivering fluid to the oil pan through the hose member and the adapter member, the waste oil pipe portion for connecting the waste oil tank for storing fluid collected from the oil pan And a cleaning connection piping portion for connecting the waste oil piping portion and the tip end side of the hose member, the tip end side of the hose member, and In the state where the connection pipe for cleaning is connected, the fluid is fed from the pump to the waste oil tank through the hose member and the connection for piping for cleaning to perform piping cleaning. is there.
In addition, a hose member corresponding to a hole for a level gauge is attached to which a straw-like nozzle insertable into a hole for a level gauge of a vehicle is attached to a tip end.

  According to the present invention, the oil temperature can be easily confirmed, and the fluid can be quickly adjusted to an appropriate amount. Foreign matter such as dust does not intrude into the vehicle transmission, and damage due to the foreign matter can be prevented. Even without skilled workmanship, fluid exchange can be carried out properly and quickly.

BRIEF DESCRIPTION OF THE DRAWINGS It is structure explanatory drawing which shows one Embodiment of this invention. It is a figure which shows embodiment of this invention, Comprising: (a) is a front view, (b) is a side view. It is a principal part expanded sectional view which shows use condition. It is a perspective view for demonstrating the kind of adapter member, Comprising: (a) is a perspective view of the adapter member for straight type large diameter screws, (b) is a perspective view of the adapter member for straight type medium diameter screws (C) is a perspective view of an adapter member for a straight type small diameter screw, and (d) is a perspective view of an adapter member for an L-shaped small diameter screw. It is structure explanatory drawing for demonstrating a preparatory work process. It is structure explanatory drawing for demonstrating a fluid injection | pouring process. It is structure explanatory drawing for demonstrating a fluid collection | recovery process. It is structure explanatory drawing for demonstrating a piping washing | cleaning process. It is structure explanatory drawing for demonstrating a piping washing | cleaning process. It is structure explanatory drawing for demonstrating a piping washing | cleaning process. It is a flowchart figure for demonstrating a standard exchange process. It is a flowchart figure for demonstrating a simple exchange process. It is a flowchart figure for demonstrating a diligence exchange process. It is a flowchart figure for demonstrating an oil temperature confirmation process. It is a principal part expanded sectional view which shows the other example instead of FIG.

Hereinafter, the present invention will be described in detail based on the illustrated embodiments.
The fluid exchange apparatus according to the present invention is for replacing the fluid in the oil pan Z of a vehicle transmission in which an overflow tube T is attached to an oil pan Z as shown in FIG.
The overflow tube T is attached to the drain port Za of the oil pan Z of the vehicle transmission in a standing manner. In addition, the overflow tube T has a defined end face Td for defining the appropriate liquid level (appropriate amount) of the fluid F in the oil pan Z at the tip (upper end) portion, and the defined end face at the base end (lower end) It has a discharge port Ta for discharging the fluid F which has overflowed (overcame) Td.
Further, the overflow plug E is detachably attached to the discharge port Ta of the overflow tube T.

As shown in FIG. 1 and FIG. 2, an apparatus main body 10 with a rectangular box type wheel capable of accommodating the waste oil tank 6 and the new oil tank 7 therein, and a hose member 1 provided protruding from the outer surface of the casing of the apparatus main body 10. And have.
Furthermore, as shown in FIGS. 1 to 3, an adapter member 2 detachably attachable to the end of the hose member 1 and a thermocouple 3 for measuring the oil temperature of the fluid F are provided. .

Further, as shown in FIG. 1 and FIG. 2, separately from the hose member 1, there is provided a straw-like nozzle 90 which is provided to project from the outer surface of the casing of the device body 10 and can be inserted into a level gauge hole (filler tube) of the vehicle. A level gauge hole corresponding hose member 9 attached to the front end portion is attached (provided).
The hose member 1 may be referred to as a first hose member 1 or an overflow tube-corresponding hose member 1. Also, the level gauge hole corresponding hose member 9 may be referred to as a second hose member 9.

As shown in FIGS. 1 to 4, the adapter member 2 is formed so that the tip end portion 21 can be detachably attached to the discharge port Ta of the overflow tube T (hereinafter sometimes referred to as the tube T). .
For example, the distal end portion 21 of the adapter member 2 has a male screw portion that can be screwed to a female screw portion formed in the discharge port Ta.
The adapter member 2 is provided with a plurality of types in which the specifications (shapes and dimensions) of the distal end portion 21 are different from each other. In other words, the adaptable (removably attached) tubes T of different types of adapter members 2, 2 and 2 are different. For example, the thread standards (screw diameter, thread pitch, etc.) of the male screw portion are different from each other. Moreover, the seal structure of the tip 21 may be different from one another.

The proximal end portion 22 of the adapter member 2 is formed so as to be detachably attachable to a joint member 11 provided at the distal end portion of the hose member 1. For example, the proximal end 22 of the adapter member 2 has a cylindrical portion that can be detachably attached to the distal end of the hose member 1.
The external shape of the base end portion 22 of each of the plurality of types of adapter members 2 conforms to the same standard (the same shape and the same outer diameter), and each of the adapter members 2 has the joint member 11 (tip portion) of the hose member 1 It is detachable to.
The adapter member 2 shown in FIG. 4 (a) is for a straight type large diameter screw, and the adapter member 2 shown in FIG. 4 (b) is for a straight type medium diameter screw. The adapter shown in FIG. 4 (c) The member 2 is for straight type small diameter screws, and the adapter member 2 shown in FIG. 4D is for L-shaped small diameter screws. Although not shown in the drawings, other various shapes and screw diameters are also provided.

The adapter member 2 is exchangeably attached to the tip of the hose member 1 from among a plurality of types (depending on the specifications of the tube T to be connected).
In other words, the tip end portion (joint member 11) of the hose member 1 corresponds to the plurality of types of adapter members 2 and is selectively removable from among the plurality of types of adapter members 2.

As shown in FIGS. 1 to 3, the thermocouple 3 is attached to the hose member 1.
The tip (measurement portion) 3 a of the thermocouple 3 is provided to protrude from the tip end of the hose member 1. Then, as shown in FIGS. 3 and 6, in a state where the adapter member 2 attached to the hose member 1 is connected to the discharge port Ta of the tube T, the tip 3 a of the thermocouple 3 is the tip of the hose member 1 Through the adapter member 2 and the tube T. Furthermore, the tip portion (tip region) of the thermocouple 3 is squeezed into a J shape so that the portion protruding from the tube T has a U-turn shape and the tip 3a hangs down. By providing in this manner, the tip 3a of the thermocouple 3 is disposed on the bottom side of the oil pan Z with respect to the specified end face Td of the tube T, and the tip 3a of the thermocouple 3 is of the fluid F in the oil pan Z. It is configured to be immersed in the inside of the fluid F from the liquid level and to measure the oil temperature directly.

The thermocouple 3 is attached to the branched pipe joint member 12 of the hose member 1 (in the illustrated example) in a cantilever shape so that the tip end side is a free end, and thus attached to the thermocouple 3 The fixed end (proximal end) 3b to the tip 3a are not fixed to other members, but are free (but may be in contact with other members). The fixed end (proximal end) 3 b of the thermocouple 3 is guided radially outward of the hose member 1 from the inside of the hose in a branched pipe joint member 12 for extraction provided at an intermediate portion of the hose member 1 and branched It is attached to the outlet 12a and is connected to the tip of the wire member 30 on the outer side of the hose.
Thus, the adapter member 2 can be easily and quickly replaced by attaching (fixing) the thermocouple 3 to the hose member 1 and setting the thermocouple 3 in a non-attached (non-fixed) state with respect to the adapter member 2. It is not necessary to provide the thermocouple 3 for each of the plurality of types of adapter members 2 and 2, and manufacture is easy (low cost).

  As shown in FIGS. 2 and 3, the wire member 30 is attached to the hose member 1 in a wound shape or a parallel shape not shown, but can be wound around the hose member 1 integrally with the hose member 1. Provided in The proximal end portion of the wire member 30 is connected to a measuring instrument for a thermocouple provided inside the device main body 10.

  As shown in FIGS. 1 and 2, the apparatus main body 10 internally includes a waste oil tank 6, a new oil tank 7, and a waste oil load cell 60 for measuring the weight of (the internal volume of) the waste oil tank 6 , A load cell 70 for measuring the weight of (the content of) the new oil tank 7 and a pump 5 for feeding the fluid F, and a plurality of on-off valves V1, V2, V3, V4, A piping circuit portion 8 having V5 and an electric motor 4 for driving a pump (gear pump) 5 are provided. The apparatus body 10 controls the on-off valves V1, V2, V3, V4 and V5, the electric motor 4 and control members such as a measuring instrument for thermocouples, and also the measuring devices for load cells 60 and 70 and thermocouples. , And a control unit such as a CPU or sequencer that can read data (signals) from the measuring device. Furthermore, the device body 10 includes an operation unit such as a button or a touch panel for sending an instruction work completion signal or an instruction signal to the control unit, and a display unit such as a display or a lamp for providing an instruction or information to the operator. A storage unit such as a ROM, a RAM, or a flash memory capable of storing data such as an oil temperature measurement result and a new oil injection amount, and an audio output unit such as a speaker or a buzzer capable of outputting audio.

  As shown in FIG. 1, the piping circuit portion 8 includes a first piping portion 81 to which the base end portion 1 b and one end portion of the first hose member 1 are connected, and the base end portion 9 b of the second hose member 9. It has the 2nd piping part 82 to which one end part was connected, and the hose side branching and joining part 83 to which the other end of the 1st piping part 81 and the other end of the 2nd piping part 82 were connected. The hose side branch junction portion 83 is provided with a filter for removing foreign matter. The hose side branch merging portion 83 is connected to the one opening of the pump 5.

  Furthermore, the piping circuit unit 8 has a tank side branch / merge unit 88 connected to the other opening of the pump 5 and a waste oil whose one end is connected to the tank side branch / merge unit 88 and the other end is connected to the waste oil tank 6 A new oil pipe part 87 is connected at one end to the tank side branch merging part 88 and at the other end to the new oil tank 7.

The piping circuit unit 8 has a cleaning connection piping unit 89 for connecting the waste oil piping unit 86 and the tip end side of the hose member 1.
One end of the cleaning connection pipe 89 is connected to the middle of the waste oil pipe 86, and the other end has a connection port 89a to which the tip of the hose member 1 can be connected.
In the waste oil piping section 86, a connection portion with one end of the cleaning connection piping section 89 is called a cleaning pipe connection section 84.

A first on-off valve V1 is interposed in the first piping portion 81. A second on-off valve V2 is interposed in the second piping member 82.
A third on-off valve V3 is interposed in the waste oil piping section 86, and a fourth on-off valve V4 is interposed between the third on-off valve V3 and the waste oil tank 6, and the third on-off valve V3 and A flush pipe connecting portion 84 is provided between the fourth on-off valve V4, and a waste oil sight glass G6 is interposed between the fourth on-off valve V4 and the waste oil tank 6.
A fifth on-off valve V5 is interposed in the new oil piping section 87, and a new oil sight glass G7 is interposed between the fifth on-off valve V5 and the new oil tank 7.

Next, the method of use (action) and control (process and process) of the fluid exchange apparatus of the present invention will be described.
First, when the power is turned on, the control unit displays a message asking the operator (user) in which of the standard replacement mode, the simple replacement mode, and the careful replacement mode the fluid replacement is to be performed. Do.

First, the case where the standard exchange mode is selected will be described.
As shown in FIG. 5, the control unit removes the tube T from the drain port Za of the transmission oil pan Z (hereinafter may be referred to as the oil pan Z), and the old fluid F accumulated in the bottom of the oil pan Z The display unit displays a preparation operation instruction to discharge the ink by natural dripping (free fall) (first step S1 in FIG. 11).
Furthermore, in the first step S1 of FIG. 11, the control unit removes the overflow plug E (hereinafter sometimes referred to as the plug E) from the tube T, and the adapter member 2 connectable to the discharge port Ta of the tube T is Select and connect to the hose member 1 and attach the tube T to the oil pan Z after natural dripping of the fluid F, and take the tip end of the hose member 1 to the tube T via the selected adapter member 2 The instruction to prepare for wearing is displayed on the display unit (preparation process).

  Then, in the second step S2, when it is input operation that the instruction work (preparation work) is completed by the operation unit, the process proceeds to the third step S3. As shown in FIG. 6, the control unit opens the first and fifth on-off valves V1 and V5 and closes the second, third and fourth on-off valves V2, V3 and V4 to obtain an electric motor. M is rotated forward to drive the pump P (inject circuit state). From the new oil tank 7, unused (new) fluid F is injected into the oil pan Z.

  After the injection of the fluid F is performed by a predetermined amount, the process proceeds to the fourth step S4 of FIG. As shown in FIG. 7, with the first, third and fourth on-off valves V1, V3 and V4 opened, the second and fifth on-off valves V2 and V5 closed, and the electric motor M reversely rotated. Then, the fluid P overflowed by the pump P is made to flow to the waste oil tank 6 (to be in a recovery circuit state). Thus, based on the measurement (the increase in weight of the waste oil tank 6) of the waste oil load cell 60, whether or not there is the fluid F which overflows the specified end face Td of the tube T by controlling the piping circuit part 8 Alternatively, the determination (confirmation) is performed based on the measurement from the flow meter or the liquid presence / absence determination device (not shown).

In the fourth step S4 of FIG. 11, if there is no overflow, the process returns to the third step S3 to put the piping circuit unit 8 into the injection circuit state and restart the injection of new oil.
If there is an overflow, the process proceeds to the next fifth step S5, waits until the overflow amount becomes less than a predetermined amount, and the overflow amount becomes less than a predetermined amount (the waste oil load cell 60 or the flow meter not shown If confirmed based on the measurement result, it is determined that the specified amount of fluid F is stored at the bottom of the oil pan Z (specified amount injection step).

Then, the control unit proceeds to the next sixth step S6, and causes the display unit to display a work instruction for causing the operator to turn on (activate) the engine.
In the next seventh step S7, when it is inputted by the operator from the operator that the engine operation state (instruction work completed state) is inputted, the process proceeds to the eighth step S8.
Then, new oil is injected while the engine is operating. By operating the engine, the old fluid F remaining in each part of the transmission is collected in the oil pan Z and mixed and diluted with the injected new oil. Then, after injecting a predetermined amount, the process proceeds to the ninth step S9, and the overflowing fluid F is recovered (extracted). This dilution process by injection and recovery is repeated until a predetermined number of times are performed.

Then, when it is determined (confirmed) that the dilution process has been performed a predetermined number of times in the next tenth step S10, the control unit proceeds to the eleventh step S11 and instructs the operator to turn off (stop) the engine Is displayed on the display unit.
Then, in the next twelfth step S12, when it is input that the operator has stopped the engine (the instruction operation has been completed) at the operation unit, the process proceeds to the oil temperature check process of FIG.
Note that FIG. 11, FIG. 12 and FIG. 13 * A follow * A of FIG. Also, the numbers "first" and "twelve", etc. of the name of each step, and the symbols "S1" and "S12" etc. are added for ease of explanation and mean the order of processing. It is not a thing.

In the thirteenth step S13 of FIG. 14, based on the measurement result of the thermocouple 3, it is determined whether the fluid F in the oil pan Z is within a predetermined oil temperature range (for example, 39.degree. C. or more and 45.degree. C. or less). .
Then, if it is within the predetermined oil temperature range, the process proceeds to the 14th step S14, the piping circuit unit 8 is put into a recovery circuit state, and it is determined whether or not there is an overflow. If there is no overflow, the process proceeds to the 15th step S15, the piping circuit unit 8 is switched to the injection circuit state, new oil is injected, and after injecting a predetermined amount, the process returns to the 14th step S14 to see if there is an overflow Determine
In the fourteenth step S14, if the overflow can be confirmed, the process proceeds to the next sixteenth step S16.
In the sixteenth step S16, when it is confirmed that the overflow amount has become equal to or less than the predetermined amount, the process proceeds to the next seventeenth step S17 to display on the display unit that the fluid replacement work has been completed, and the process ends.

Here, in the thirteenth step S13, if the oil temperature is not within the predetermined oil temperature range, the process proceeds to the eighteenth step S18 to determine whether it is lower or higher than the predetermined oil temperature range.
If it is low, the process proceeds to a nineteenth step S19 to display a work instruction of engine ON on the display unit.
In the next twentieth step S20, when it is input by the operator from the operator that the engine is operating, the process proceeds to the twenty-first step S21. The control unit causes the display unit to display a work instruction to stop (turn off) the engine when a predetermined time has elapsed.
In the next twenty-second step S22, when the operator gives an instruction that the engine stop state is input from the operation unit, the process proceeds to a thirteenth step S13 to check the oil temperature again.

  Then, in the eighteenth step S18, if it is higher than the predetermined oil temperature range, the process proceeds to the twenty-third step S23, a predetermined amount of fluid F is injected, and then the twenty-fourth step S24 proceeds to overflow the fluid The amount of F injected is collected, and the process proceeds to a thirteenth step S13 to check the oil temperature again.

  Thus, when the oil temperature of the fluid F in the oil pan Z is lower than a predetermined oil temperature range, the oil temperature is raised by operating the engine, and when the oil temperature is high, the oil temperature is lowered by the addition of the fluid F Perform the temperature adjustment process.

  Next, the case where the operator selects the simple exchange mode will be described. The control unit removes the plug E from the tube T attached to the oil pan Z, selects the adapter member 2 connectable to the discharge port Ta of the tube T, and selects the hose member 1 via the selected adapter member 2 The distal end side of the tube is attached to the tube T, and then the preparation operation instruction for operating the engine is displayed on the display unit (25th step S25 in FIG. 12).

In the next twenty-sixth step S26, when it is input by the operator from the operator that the instruction work completion state is entered, the process proceeds to the twenty-seventh step S27.
While the engine is operating, new oil is injected as shown in FIG. Then, after injecting a predetermined amount, the process proceeds to the 28th step S28, and the overflowing fluid F is collected (extracted). This dilution process by injection and recovery is repeated until a predetermined number of times are performed.

  Then, in the twenty-ninth step S29, when the control unit determines (confirms) that the dilution process has been performed a predetermined number of times, in the following 30th step S30, a work instruction to cause the operator to stop the engine is displayed on the display unit. Display. Then, in the next thirty-first step S31, when the operator inputs that the engine is stopped from the operation unit, it is determined that the dilution process is finished, and the process proceeds to the oil temperature check process of FIG. Control, processing and display are performed as in the standard replacement mode described above, and the fluid replacement operation is completed.

  Next, the case where the worker selects the special exchange mode will be described. As shown in FIG. 5, the control unit removes the tube T from the oil pan Z, discharges the old fluid F, and then attaches the tube T to the drain port Za, and the adapter member 2 to the outlet Ta of the tube T The display unit displays a preparation work instruction to connect the hose member 1 via the (step 33 in FIG. 13).

  In the thirty-fourth step S34 of FIG. 13, when it is input that the instruction work is completed at the operation unit, the process proceeds to the thirty-fifth step S35, and as shown in FIG. 6, injection of new oil is started. (Inject circuit state). Then, after injection for a predetermined amount or for a predetermined time is performed, the process proceeds to the 36th step S36, and it is determined (confirmed) whether or not there is a fluid F which overflows.

  In the thirty-sixth step S36, if there is no overflow, the process returns to the thirty-fifth step S35 to restart the new oil injection. If there is an overflow, the process proceeds to the next 37th step S37, waits until the overflow amount becomes less than a predetermined amount, and when the control unit confirms that the overflow amount has become equal to or less than the predetermined amount, It is determined that the fluid F is stored in a specified amount (specified amount injection step).

  Then, the control unit proceeds to the next thirty-eighth step S38 and causes the display unit to display a work instruction to turn on (operate) the engine. In the following thirty-ninth step S39, when it is input from the operator via the operation unit that the instruction work completion (engine operation) state has been entered, the process proceeds to the fortieth step S40. In the fortieth step S40, since the fluid F remaining in each part of the transmission flows to the oil pan Z due to the operation of the engine, the piping circuit portion 8 is put in a recovery circuit state, and the specified end face Td of the tube T is While collecting the fluid F which overflows over, it waits until predetermined time passes. Then, after a predetermined time has elapsed, it is checked whether the prescribed amount injecting process for storing the fluid F to the prescribed amount has been performed a prescribed number of times since the careful exchange mode was started. Since it is the first time, the process proceeds to the 42nd step S42, outputs a buzzer sound, proceeds to the next 43rd step S43, turns the engine off, and removes the tube T from the oil pan Z as shown in FIG. , Drain the fluid F mixed with new oil and old oil, then attach the tube T to the drain port Za, and connect the hose member 1 to the discharge port Ta of the tube T via the adapter member 2 (for repetition ) Display a preparation work instruction on the display unit. Then, at the next forty-fourth step S44, when the operator performs an input operation for completing the preparation work (for repetition), the process returns to the thirty-fifth step S35, and the injection is started again. The process proceeds to step S41, and the predetermined amount injection step is repeated until it is determined that the predetermined amount injection step has been performed a predetermined number of times.

  Then, if it is determined in the forty-first step S41 that the prescribed amount injection step has been performed a predetermined number of times, the process proceeds to the following forty-fifth step S45 to cause the display unit to display a work instruction to turn off the engine. In the following 46th step S46, when it is input by the operator from the operator that the instruction work completion (engine stop) state has been entered, the process proceeds to the oil temperature check step of FIG. Control, processing and display are performed as in the standard replacement mode described above, and the fluid replacement operation is completed.

  Further, in the fluid exchange apparatus of the present invention, when the fluid F to be replaced is different in type from the fluid F used in the previous fluid replacement operation, as shown in FIG. 8 to FIG. The pump P, the first piping portion 81, and the first hose member 1 can be cleaned with the fluid F used for replacement in the piping. The process of cleaning using the first hose member 1 may be referred to as first pipe cleaning.

When the operator selects the first pipe cleaning mode, as shown in FIG. 8, a preparation operation instruction to connect the tip end of the first hose member 1 to the connection port 89 a of the cleaning connection pipe 89 is given. Display on the display unit.
The connection structure between the tip end side of the first hose member 1 and the connection port portion 89 is, as shown in FIG. 8, a tip portion (joint member 11) of the first hose member 1 and the connection port portion 89a and a joint member Connectable through 19 or directly connectable between the tip (joint member 11) of the first hose member 1 and the connection port 89a, or connectable through the adapter member 2 although not shown It is composed of

  When the preparation operation is completed, the first, fourth and fifth on-off valves V1, V4 and V5 are opened, and the second and third on-off valves V2 and V3 are closed. And the electric motor 4 is rotated forward. New oil (unused fluid F scheduled to be used for replacement) flows from the new oil tank 7 to the new oil piping section 87, the tank side branching and joining section 88, the pump 5, the hose side branching and joining section 83, and the first piping section The first hose member 1, the connection pipe portion 89 for cleaning, and the pipe portion 86 for waste oil sequentially flow from the cleaning pipe connection portion 84 to the waste oil tank 6, and are sent to the waste oil tank 6.

Further, when the control unit determines that a predetermined amount of fluid F (new oil) has been sent from the new oil tank 7 to the waste oil tank 6 (by measurement of each load cell 60, 70), as shown in FIG. The first and third on-off valves V1 and V3 are opened, and the second, fourth and fifth on-off valves V2, V4 and V5 are closed to form a closed circuit. In the portion 88, the pump 5, the hose side branch junction portion 83, the first piping portion 81, the first hose member 1, the cleaning connection piping portion 89, and the waste oil piping portion 86, from the cleaning pipe connection portion 84 to the tank side branching junction Circulate up to 88 sequentially (perform the circulating washing step).
As described above, by controlling the piping circuit portion 8, it is possible to intensively clean the inside of the pump P and the first hose member 1 in which the fluid F tends to remain, while preventing waste of new oil.

  When the control unit determines that the circulation cleaning has been performed for a predetermined time, as shown in FIG. 10, the first and fourth on-off valves V1 and V4 are opened, and the second, third, and fifth on-off valves are opened. With the valves V2, V3 and V5 closed, the fluid F being circulated is sent to the waste oil tank 6, and the first pipe cleaning is finished.

The straw-like nozzle 90 of the second hose member 9 is an automatic matching transmission (AT), a dual clutch transmission (DCT), a CVT (continuous variable transmission, continuously variable transmission) with a level gauge, It is inserted into a level gauge hole (filler tube) of an engine or the like, and the tip end of the nozzle reaches the bottom of the oil pan, making it possible to exchange oil liquids such as transmission oil, fluid and engine oil.
That is, the new oil tank 7 may be replaceable, and may store mission oil, engine oil, etc., in addition to ATF and CVTF.

  And although illustration is omitted, the piping part 87 for new oil, the pump P, the second piping part 82, and the second hose member 9 are configured to be washable with oil such as fluid F used for replacement. doing. Cleaning using this second hose member 9 is called second pipe cleaning. First, the new oil tank 7 storing oil to be replaced is disposed at a predetermined position (which can be measured by the new oil load cell 70) in the apparatus main body 10.

When the operator selects the second pipe cleaning mode, the straw-like nozzle 90 is removed from the connection joint member 91 at the tip of the second hose member 9, and the tip portion of the second hose member 9 (connection joint member 91) and the connection port 89a are directly connected or connected to the connection port 89a via a joint member.
Then, when the preparation operation is completed and the input operation is performed, the second, fourth, fifth on-off valves V2, V4, V5 are opened, and the first, third on-off valves V1, V3 are closed. And the electric motor 4 is rotated forward. New oil tank 7 (new engine oil, oil such as transmission oil, etc.) from new oil tank 7, piping section 87 for new oil, tank side branching and merging section 88, pump 5, hose side branching and merging section 83, second piping The portion 82, the second hose member 9, the connection pipe portion 89 for cleaning, and the pipe portion 86 for waste oil sequentially flow from the cleaning pipe connection portion 84 to the waste oil tank 6 and are sent to the waste oil tank 6.

Furthermore, when the control unit determines that a predetermined amount of oil has been sent from the new oil tank 7 to the waste oil tank 6, the second and third on-off valves V2, V3 are opened, and the first, fourth, and fourth With the on-off valves V1, V4 and V5 of 5 closed, the oil fluid is transferred from the tank side branch / merge portion 88, the pump 5, the hose side branch / merge portion 83, the second piping portion 82, the second hose member 9, the cleaning The connection piping portion 89 and the waste oil piping portion 86 sequentially circulate from the cleaning pipe connection portion 84 to the tank side branch joining portion 88 (circulation cleaning step).
When the control unit determines that the circulation cleaning has been performed for a predetermined time, the second and fourth on-off valves V2 and V4 are opened, and the first to third on-off valves V1, V3 and V5 are opened. In the closed state, the circulated oil is sent to the waste oil tank 6, and the second cleaning of the pipe is completed.

  With this configuration, it is possible to prevent injection in a state in which transmission oil, engine oil, and various types of oil liquids such as ATF and CVTF are mixed in the piping. In other words, various types of fluid replacement operations are possible.

Further, as shown in FIG. 2, when the vehicle is lifted by a lift or the like, the fluid F discharged from the drain port Za of the oil pan Z and the oil discharged from the drain holes (ports) of each part of the vehicle are received. The bucket member 18 is provided in the apparatus main body 10. The oil received by the bucket member 18 is provided to flow to the waste oil tank 6 by free fall (free fall).
Then, the amount of oil F such as fluid F received by the bucket member 18 is measured by the waste oil load cell 60, and based on the measurement result, a standard of the amount of injection of oil F such as fluid F ( It is possible to determine the injection set volume).

Next, another example of the attachment positions of the first hose member 1 and the thermocouple 3 will be described.
As shown in FIG. 15, the thermocouple 3 is attached to the first hose member 1. The tip (measurement unit) 3 a of the thermocouple 3 is provided inside the first hose member 1. By providing in this manner, there is no possibility that the tip 3a of the thermocouple 3 comes in contact with other members such as a person, a vehicle, or the casing of the apparatus body 10. Further, the replacement operation of the adapter member 2 and the attachment / detachment operation with the overflow tube T can be performed easily and quickly.
When the thermocouple 3 is thus provided inside the first hose member 1, the liquid level of the fluid F in the oil pan Z becomes higher than the overflow prescribed end face Td before the oil temperature check step. Fluid F is injected (immediately), and the first on-off valve V1 (see FIG. 6) is closed. That is, as shown in FIG. 15, the fluid level of the fluid F is higher than the overflow prescribed end surface Td in the oil pan Z, and the inside of the first hose member 1 (around the tip 3a of the thermocouple 3) is fluid. Be satisfied with F. In this state, measure the oil temperature.

The present invention can be changed in design, and the connection structure of the tip end portion of the first hose member 1 and the adapter member 2 is not limited to the joint structure of the cap nut and the retaining ring structure as illustrated. The press-in type and screw-on type are free. The peculiarity of the thermocouple 3 may be J-shaped by sagging the tip region in a curled shape (coil spring shape). Alternatively, a weight may be attached to the tip 3a to be J-shaped depending on the weight.
Also, in the standard replacement mode (step) of FIG. 11 and the simple replacement mode (step) of FIG. 12, the fluid F is first discharged from the oil pan Z or after it is recovered (taken out), oil temperature check The engine may be left ON before proceeding to the process. (It is also possible to work without turning off the engine.) For example, the eleventh, twelfth, thirty-first, and thirty-first steps S11, S12, S30, and S31 may be omitted.
Further, in the oil temperature check process of FIG. 14, the oil temperature check process may be performed while the engine is on (without turning the engine off).
Further, in FIG. 2 and FIG. 5 etc., the load cells 60 and 70 are disposed below the respective tanks 6 and 7, but the load cells 60 and 70 are disposed above the respective tanks 6 and 7 It is preferable to set it up and to measure it in a hanging manner.
Further, in FIG. 2, the electric motor 4 is disposed at the lower part of the apparatus main body 10, but it is desirable to dispose the electric motor 4 at the upper part of the apparatus main body 10.
In the present invention, the fluid F is stored in a vehicle drive unit such as ATF (auto match transmission fluid), CVTF (continuously variable transmission fluid), DCTF (dual clutch transmission fluid), transmission oil, engine oil, etc. It says lubricating oil and hydraulic oil.

  As described above, the fluid replacement device of the present invention is a fluid replacement device for replacing the fluid F in the oil pan Z of the vehicle transmission in which the overflow tube T is attached to the oil pan Z. The temperature of the fluid F in the oil pan Z, the adapter member 2 for detachably attaching to the discharge port Ta of the overflow tube T, the hose member 1 to which the adapter member 2 is attached at the tip, and Since the thermocouple 3 for measuring is provided and the thermocouple 3 is attached to the hose member 1, the oil temperature can be easily confirmed, and with the oil temperature being appropriate, the amount of the fluid F is appropriate. Can be adjusted. Foreign matter such as dust does not intrude into the vehicle transmission, and damage due to the foreign matter can be prevented. Even without skilled workmanship, fluid exchange can be carried out properly and quickly. In addition, since the thermocouple 3 is attached to the hose member 1, the adapter member 2 can be made detachable (replaceable), and a plurality of types of adapter members 2 can be easily manufactured.

  In addition, since the adapter member 2 is provided in a plurality of types, and the adapter member 2 is exchangeably attached to the hose member 1 selectively from among a plurality of types, various types of overflow tubes T ( It can respond easily and quickly to various types of manufacturers and models of transmissions.

  Further, the thermocouple 3 passes from the tip of the hose member 1 through the adapter member 2 and the overflow tube T to form a U-turn and the tip 3a of the fluid F from the fluid surface of the fluid F in the oil pan Z Since the thermocouple 3 is attached to the hose member 1 so as to be immersed inside, the oil temperature in the oil pan Z can be accurately measured. In addition, it is possible to measure the oil temperature on the bottom side of the oil surface (specified end surface Td), and to measure the temperature of the oil surface (oil surface) or by holding the tip 3a of the thermocouple 3 in the tube T Accurate measurement can be performed compared to the case.

  Further, a pump 5 for feeding the fluid F into the oil pan Z via the hose member 1 and the adapter member 2 and a waste oil tank 6 for storing the fluid F collected from the oil pan Z are connected. And a cleaning connection piping section 89 for connecting the waste oil piping section 86 and the tip end side of the hose member 1; The fluid F is fed from the pump 5 to the waste oil tank 6 through the hose member 1 and the cleaning connection piping 89 in a state where the front end side and the cleaning connection piping 89 are connected. Since the pipe cleaning is performed, it is possible to prevent the different types of fluid F from being injected while being mixed in the pipe section. Various types of fluid exchange can be performed easily and quickly. It is easy to use because it is compatible with various vehicle types and transmissions with one unit.

  Since the level gauge hole corresponding hose member 9 is attached to the tip end portion of the straw shaped nozzle 90 which can be inserted into the level gauge hole of the vehicle, the transmission is not limited to the gaugeless type CVT, etc. It is possible to perform fluid change of gauged CVT, automatic injection and automatic recovery of engine oil change, and one can perform various oil liquid change operations. That is, it is possible to cope with replacement work of hydraulic oil and lubricating oil stored in a gaugeless CVT, gauged CVT, DCT, AT, engine, etc. by one unit.

Reference Signs List 1 hose member 2 adapter member 3 thermocouple 3a tip 5 pump 6 waste oil tank 9 hole corresponding hose member for level gauge
86 Waste oil piping
89 Connection piping for cleaning
90 nozzles F fluid T overflow tube Ta outlet Z oil pan

Claims (3)

A fluid replacement device for replacing fluid (F) in an oil pan (Z) of a vehicle transmission having an overflow tube (T) attached to an oil pan (Z),
An adapter member (2) for detachably attaching to the discharge port (Ta) of the overflow tube (T), a hose member (1) to which the adapter member (2) is attached at the tip, and A thermocouple (3) for measuring the oil temperature of the fluid (F) in the oil pan (Z),
Attach the thermocouple (3) to the hose member (1) ,
The thermocouple (3) passes the adapter member (2) and the overflow tube (T) from the tip of the hose member (1) to form a U-turn tip (3a) of the oil pan (Z) A fluid exchange apparatus characterized in that the thermocouple (3) is attached to the hose member (1) so as to be immersed in the fluid (F) from the surface of the fluid (F) inside . A fluid replacement device for replacing fluid (F) in an oil pan (Z) of a vehicle transmission having an overflow tube (T) attached to an oil pan (Z),
An adapter member (2) for detachably attaching to the discharge port (Ta) of the overflow tube (T), a hose member (1) to which the adapter member (2) is attached at the tip, and A thermocouple (3) for measuring the oil temperature of the fluid (F) in the oil pan (Z),
Attach the thermocouple (3) to the hose member (1),
A pump (5) for feeding the fluid (F) into the oil pan (Z) through the hose member (1) and the adapter member (2), and a fluid (F) recovered from the oil pan (Z) And a waste oil pipe section (86) for connecting the waste oil tank (6) for storing, and further, the waste oil pipe section (86) and the tip end side of the hose member (1), Equipped with connection piping (89) for cleaning, to connect
With the tip end side of the hose member (1) and the connection pipe portion for cleaning (89) connected, the hose member (1) and the connection pipe portion for cleaning (89) from the pump (5) A fluid (F) is fed to the waste oil tank (6) through the pipe to clean the piping . The fluid replacement device according to claim 1 or 2, further comprising a level gauge hole corresponding hose member (9) attached at its tip to a straw shaped nozzle (90) which can be inserted into a level gauge hole of a vehicle .

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