JP3472396B2 - Method and device for lubricating impact torque generator - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and device for lubricating a hydraulic percussion torque generator used in a torque wrench, and more specifically, it has a single lubricating port, is small in size, and has a complicated internal structure. Into the striking torque generator,
The present invention relates to a method and an apparatus for injecting an impact torque generating device suitable for surely filling viscous oil.

[0002]

2. Description of the Related Art Conventionally, in order to inject and fill viscous oil into a striking torque generator having a small oil inlet and a complicated internal structure, a pump or syringe-like oil filling is used from the oil inlet. Lubrication work is performed using the equipment. However, in this method, it takes not only meticulous attention and time to discharge the air contained in the complicated structure of the striking torque generator into the part outside the striking torque generator and replace it with oil, but It was difficult to completely remove the bubbles remaining inside the torque generator. In order to solve this problem and reliably and easily lubricate the striking torque generator, the applicant of the present invention, as shown in FIG.
After the striking torque generator K for injecting and filling the oil is housed in the oil filling tank T filled with the oil O, the inside of the oil filling tank T is decompressed, and the striking torque generating device K is housed in the oil filling tank T. Impact torque generator K for injecting and filling oil
Has proposed a method of lubricating oil to (see Japanese Patent Publication No. 6-8640).

[0003]

According to this method, it is possible to surely and easily perform the lubrication, as compared with the conventional method of performing the lubrication work from the lubrication port by using a pump or a syringe-like oil filling device. Will be things. However, even with this method, when the internal structure of the striking torque generator is particularly complicated, it is difficult to completely discharge the air contained in this portion and replace it with oil due to the influence of the viscosity of the oil. Met.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method and an apparatus for lubricating an impact torque generating device capable of reliably filling viscous oil into the impact torque generating device having a complicated internal structure. .

[0005]

In order to achieve the above object, a method for lubricating an impact torque generating device according to the first aspect of the present invention comprises:
After the striking torque generator to inject and fill oil is stored in the oil tank, depressurize the oil tank and hold the depressurized state from the degassing oil tank to the degassing oil tank.
By introducing the degassed oil of
Oil is injected and filled in the striking torque generator housed in the oil tank, and is included in the remaining oil in the oil tank.
Connect the lubrication tank and degassing oil tank
The impurities removal circuit installed in the oil supply pipe
It is characterized in that the oil is returned to the oil tank .

According to the oiling method for the striking torque generating device of the first aspect of the invention, after the striking torque generating device for injecting and filling the oil is housed in the oiling tank, the inside of the oiling tank is depressurized to a depressurized state. By introducing oil into the lubrication tank while holding the oil, the air inside the striking torque generator is completely discharged to the outside of the striking torque generator and replaced with oil without being affected by the viscosity of the oil. Oil can be injected and filled in the striking torque generator housed in the tank.
In this case, if the air in the striking torque generator is completely discharged to the outside of the striking torque generator, it means that unnecessary air is completely blown to inject and fill a predetermined amount of oil into the striking torque generator. Discharge to the outside of the torque generator (same below). Also, degas in the degassing oil tank.
Dissolve the oil in the oil by introducing it into the oil tank.
It is possible to deaerate existing air and generate impact torque.
The amount of oil filled in the device can be adjusted more accurately.
Wear.

According to the second aspect of the present invention, there is provided a method for lubricating a percussion torque generator, in which the percussion torque generator for injecting and filling oil is housed in a position within the lubrication tank where the oil introduced into the lubrication tank does not enter. After that, depressurize the oil tank and inject the oil into the striking torque generator housed in the oil tank by immersing the striking torque generator in the oil introduced into the oil tank while maintaining the depressurized state. , Filling.

According to the oiling method for the striking torque generating device of the second aspect of the invention, the striking torque generating device for injecting and filling the oil is positioned in the oiling tank so that the oil introduced into the oiling tank does not enter. After depressurizing the oil tank, the impact torque generator is immersed in the oil introduced into the oil tank while maintaining the depressurized state, so that the impact torque is not affected by the viscosity of the oil. The air inside the generator is completely discharged outside the striking torque generator and replaced with oil,
Oil can be injected and filled in the striking torque generator housed in the oil tank.

In addition, in the method of lubricating oil to the striking torque generating device of the first and second inventions, the oil can be pumped by the pressure of an inert gas such as high-pressure nitrogen gas and introduced into the oil tank. .

As a result, it is possible to reduce the risk of fire or explosion at the time of oiling the striking torque generating device, improve the safety and reduce the amount of oxygen dissolved in the oil. It is possible to prevent the oil injected and filled in the striking torque generator from being oxidized.

The oiling device for the striking torque generating device according to the third aspect of the present invention is for carrying out the method according to the first aspect of the present invention. It is provided with a degassing oil tank for temporarily storing oil and an oil pouring device. It is equipped with an oil filling tank containing a striking torque generator to be filled and filled, and a decompression mechanism for decompressing the inside of the degassing oil tank and the oil filling tank.
Degassing oil tank by connecting to the oil tank via the oil supply pipe
So that the deaerated oil inside is introduced into the lubrication tank
At the same time, impurities are removed from the lubrication tank and the degassing oil tank.
Connected via the oil supply pipe with a circuit,
Remove the remaining oil from impurities contained in the oil and put it in the oil tank
The feature is that it is returned .

The oiling device for the striking torque generating device of the fourth invention is for carrying out the method of the second invention, and is an oil tank for accommodating the striking torque generating device for injecting and filling oil. The impact torque generating device housed in the oil filling tank, the position where the oil introduced into the oil filling tank does not enter the impact torque generating device, and the impact torque generating device is immersed in the oil introduced into the oil filling tank. And a depressurizing mechanism for depressurizing the inside of the oil supply tank.

Further, in the oil-filling device for the striking torque generating device of the third and fourth inventions, a temperature adjusting mechanism for adjusting the temperature of the oil to be injected and filled in the striking torque generating device is provided. .

This makes it possible to eliminate the influence of the change in the volume of the oil due to the temperature change.

Further, in the lubricating device for the striking torque generating device of the third and fourth inventions, an ultrasonic oscillator is provided in the lubricating tank.

This makes it possible to smoothly deaerate the air bubbles and dissolved air mixed in the oil, and inject and fill the oil into the striking torque generating device, and at the same time, to mix the metal mixed in the oil. Impurities and other impurities can be prevented from settling and accumulating on the bottom of the lubrication tank, etc., and the efficiency of collecting impurities by the magnets and filters of the impurity removal circuit can be improved.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a method and a device for lubricating an impact torque generating device of the present invention will be described below with reference to the illustrated embodiments.

FIG. 1 shows a first embodiment of an oiling device for an impacting torque generating device according to the present invention. An oiling tank 1 and a degassing oil tank for temporarily storing oil introduced into the oiling tank 1. 2 and a vacuum pump 11 that constitutes a decompression mechanism that decompresses the oil supply tank 1 and the degassing oil tank 2.

The lubrication tank 1 has a capacity capable of accommodating a required number of striking torque generators K therein, and a lid 1F for allowing the striking torque generator K to be taken in and out and hermetically closed at the time of decompression is detachable. Set up. The degassing oil tank 2 is provided to temporarily store the oil to be introduced into the oil filling tank 1. The degassing oil tank 2 is provided separately from the oil filling tank 1 and into the oil filling tank 1 by the gravity of the oil. It is arranged at a high position with respect to the lubrication tank 1 so that it can be introduced, and is configured so that it can be sealed when decompressing. The oil supply tank 1 and the degassing oil tank 2 are connected via an oil sending pipe 3 provided with a valve 4, that is, the upper end of the oil sending pipe 3 is connected to the lower outlet of the degassing oil tank 2. A valve 4 is provided in the middle of 3, and the lower end of the oil feed pipe 3 is connected to the upper inlet of the oil filling tank 1 so that the opening and closing of the valve 4 connects or disconnects both tanks.

In the degassing oil tank 2, a heater 61 as a temperature adjusting mechanism for keeping the oil at an appropriate temperature, and a liquid level sensor 7 for detecting the maximum amount of oil supply and the minimum amount of oil supply.
1, 72 are provided. In the oil tank 1, a heater 62 as a temperature adjusting mechanism for keeping the oil at an appropriate temperature, a liquid level sensor 73 for detecting the oil amount, and a metal impurity for removing the metal impurities mixed in the oil. A shelf 1T is provided for fixing and supporting the magnet 8 and the striking torque generator K housed therein at a predetermined position. Further, a pressure gauge 25 and an air supply pipe 26 provided with a valve 27 for introducing atmospheric pressure into the depressurized oil tank 1 to bring the inside of the oil tank 1 to atmospheric pressure are connected to the oil tank 1. In this case, the lower portions of the oil supply tank 1 and the degassing oil tank 2 are preferably tapered so that oil can be discharged smoothly. Also,
If necessary, an ultrasonic oscillator 6 may be provided near the bottom of the lubrication tank 1 or the lubrication tank 1 and the degassing tank 2 may be kept at a constant temperature in order to keep the oil temperature constant. A heat insulating heat insulating material may be provided around the oil tank 2. The ultrasonic oscillator may be provided near the bottom of the degassing oil tank 2.

The degassing oil tank 2 is connected to an oil tank 5 for storing oil. Like the oil tank 1 or the degassing oil tank 2, the oil tank 5 has a heater 63 as a temperature adjusting mechanism for keeping the oil at an appropriate temperature and a liquid level sensor 74 for detecting the oil amount. To provide.

The oil tank 5 and the degassing oil tank 2 are connected by an oil supply pipe 17, and an oil supply pump 18, an impurity removal circuit 19 and a valve 24 are provided in the middle of the oil supply pipe 17. The impurity removing circuit 19 includes a magnet 20 and a filter 2.
1 and the valves 22 and 22A are provided, and the metal impurities mixed in the oil supplied from the oil tank 5 to the degassing oil tank 2 by driving the oil supply pump 18 are separated by the magnet 20 from other impurities. Remove with filter 21. Furthermore, a magnet 20A, a filter 21A, and a preliminary circuit 19A provided with valves 23 and 23A are connected in parallel to the impurity removing circuit 19, so that when cleaning the magnet 20 and the filter 21 of the impurity removing circuit 19, It is desirable to close the valves 22 and 22A of the impurity removing circuit 19 and open the valves 23 and 23A of the preliminary circuit 19A so that oil can be continuously supplied.

The oil tank 5 is connected to the oil supply tank 1 by an oil supply pipe 10 provided with a valve 9 so that the remaining oil in the oil supply tank 1 can be returned to the oil tank 5. An oil supply pipe 28 is connected to the oil supply pipe 10 so that the oil supply pipe 2
An oil supply hopper 30 is connected to 8 via a valve 29.

The oil supply tank 1 and the degassing oil tank 2 are connected to a vacuum pump 11 via an intake / deaeration pipe 12 and an intake / deaeration pipe 13. The vacuum pump 11 reduces the pressure in the oil supply tank 1 and the deaeration oil tank 2 to a predetermined negative pressure. The intake / deaeration pipe 12 is provided with a valve 14 and a valve 15. An intake / deaeration pipe 13 provided with a valve 16 between 15 is branched and connected, the intake / deaeration pipe 12 is connected to the oiling tank 1, and the branch pipe 13 is connected to the deaeration oil tank 2. These three valves 1
By selectively switching between 4, 15 and 16, it is possible to selectively reduce the pressure of the oil supply tank 1 and the degassing oil tank 2.

Next, a method of lubricating the impact torque generating device using this lubrication device will be described. Impact torque generator K
In order to inject and fill a predetermined amount of viscous oil, first, the lid 1F of the oil supply tank 1 is opened, the striking torque generator K is placed on the shelf 1T, and then the lid 1F is closed. At this time, the valve 4 is closed. The oil supply pump 18 is driven to supply a predetermined amount of oil from the oil tank 5 into the degassing oil tank 2. With valves 4, 9, 24 and 27 closed,
The vacuum pump 11 is driven while opening 15 and 16. As a result, the lubrication tank 1 connected to the vacuum pump 11 via the intake / deaeration pipe 12 and the intake / deaeration pipe 13.
The inside and the inside of the degassing oil tank 2 are decompressed, and at the same time, the inside of the striking torque generating device K is decompressed as well. At this time,
The air dissolved in the oil in the degassing oil tank 2 is degassed.

The pressure in the oil supply tank 1 and the degassing oil tank 2 is reduced to a predetermined negative pressure, and the valve 4 is opened while the depressurized state of the oil supply tank 1 and the degassing oil tank 2 is maintained. The deaerated oil in the deaeration oil tank 2 is introduced into the oil supply tank 1 by gravity through the oil supply pipe 3. As a result, the oil introduced into the lubrication tank 1 is naturally depressurized, that is, is naturally injected and filled into the striking torque generating device K in which the internal air has been completely discharged. When the required amount of oil is introduced into the oil supply tank 1, the valves 4 and 14 are closed, the vacuum pump 11 is stopped, the valve 27 is opened, and the atmosphere is introduced into the depressurized oil supply tank 1. The inside of the oil injection tank 1 and the inside of the degassing oil tank 2 are set to atmospheric pressure.

FIG. 2 shows a modification of the first embodiment.
In this embodiment, the oil supply pump 18 is not provided in the middle of the oil supply pipe 17 of the first embodiment, but the upper space in the oil tank 5 is communicated with a cylinder 31 of an inert gas such as nitrogen gas, and a valve is provided on the way. The air supply pipe 32 provided with 33 is connected, and the oil in the oil tank 5 is pressure-fed toward the degassing oil tank 2 by the pressure of the high-pressure inert gas. In this case, the air is introduced into the pressure-reduced oil supply tank 1, and the air supply pipe 26 provided with a valve 27 for setting the pressure in the oil supply tank 1 to the atmospheric pressure is connected to the inert gas cylinder 31.
By branching and connecting the two, an inert gas can be introduced instead of introducing the atmosphere into the oil supply tank 1. The other structure of this embodiment is the same as that of the first embodiment. Further, during deaeration, by bubbling the oil in the deaeration oil tank 2 with an inert gas such as nitrogen gas while performing timer control and the like, bubbles and dissolved air mixed in the oil are dissolved. Can be replaced with an inert gas.

As a result, it is possible to reduce the risk of fire and explosion during the oiling operation of the percussion torque generator K, improve the safety, and increase the amount of oxygen dissolved in the oil. It is possible to reduce the impact torque generating device K
It is possible to prevent the oil injected and filled inside from being oxidized.

FIG. 3 shows a second embodiment of the oiling device for the striking torque generating device of the present invention. The oiling tank 101 and the striking torque generating device K housed in the oiling tank 101 are fixed and supported at predetermined positions. Hydraulic cylinder 102 that constitutes an elevating mechanism for elevating and lowering the shelf 101a for operating the oil supply tank 1.
Vacuum pump 115 constituting a pressure reducing mechanism for reducing the pressure inside 01
Etc.

The lubrication tank 101 has a capacity capable of accommodating a required number of striking torque generators K inside, and a rack 101a for fixing and supporting the striking torque generator K accommodated in the lubrication tank 101 is hydraulically operated. By the hydraulic cylinder 102 operated by the unit 104 via the oil passage 120, an upper position where the oil introduced into the oil filling tank 101 does not enter the striking torque generating device K and the striking torque generating device K is in the lubricating tank 101. It is configured so that it can be selectively installed in a lower position where it is immersed in the oil introduced into.

Further, a lid 101b is provided on the oiling tank 101 so as to be capable of opening and closing the striking torque generating device K and sealing at the time of pressure reduction. The lid 101b is opened by a hydraulic unit 104 via an oil passage 121. It is configured so that it can be opened and closed by a hydraulic cylinder 103 that is operated by the user.

This oil supply tank 101 is connected to an oil tank 105 for storing oil by an oil supply pipe 122.
An oil supply pump 106, a pressure gauge 137, and a valve 147 are provided in the middle of 22. The oil tank 101 is provided with a liquid level switch and a liquid level sensor 138 for detecting the amount of oil in the oil tank 101. In this case, it is desirable that the lower part of the oil supply tank 101 be tapered so that the oil can be discharged smoothly. Also, if necessary,
An ultrasonic oscillator can be provided near the bottom of the oil tank 101.

The oil feed pipe 123 for circulating the oil discharged from the oil feed tank 101 is joined with the oil feed pipe 122, and a filter 107 for removing impurities mixed in the oil in the middle of the oil feed pipe 122. To provide. In addition,
A magnet that removes metal impurities mixed in oil can be provided along with the filter 107. Oil pipe 12
A valve 141 and a valve 142 are provided in the middle of the oil supply pipe 123 and the oil supply pipe 123, respectively, and the flow of oil can be switched by operating the valves 141 and 142.

The lubrication tank 101 includes the lubrication tank 101.
A heater jacket 108 is provided as a temperature adjusting mechanism for keeping the oil in the container at an appropriate temperature. The heater jacket 108 is an oil tank 1 for storing heating oil.
09 is connected to the oil supply pipe 124, and the oil supply pump 110, the thermometer 133, and the pressure gauge 1 are provided in the middle of the oil supply pipe 124.
36 is provided. In the oil tank 109, a heater 119 for heating the heating oil, a thermometer 131,
A liquid level switch 139 and a liquid level sensor 140 for detecting the amount of oil are provided. Oil supply pipe 124 for heating oil
Is branched into an oil feed pipe 124a and an oil feed pipe 124b on the way, and the heat exchanger 1 is placed in the middle of one oil feed pipe 124a.
11 is provided. A valve 143 and a valve 144 are provided in the middle of the oil feed pipe 124a and the oil feed pipe 124b, respectively.
By operating the valves 143 and 144, the flow of the heating oil can be switched.

The heat exchanger 111 usually has tap water 112.
Is supplied through the water supply pipe 125 so that the temperature of the heating oil can be lowered to a predetermined temperature when the temperature of the heating oil rises too much. A circulation unit 113 and a thermometer 132 are provided in the middle of the water supply pipe 125,
The unnecessary water whose temperature has risen is discharged through the drain pipe 114 branched from the water supply pipe 125.

Further, the oil supply tank 101 has an intake pipe 126 in which a pressure gauge 134 and a pressure indicating controller 135 are provided on the way.
It is connected to the vacuum pump 115 via. The vacuum pump 115 reduces the pressure in the oil supply tank 101 to a predetermined negative pressure, and the intake pipe 126 is provided with a valve 145.
In addition, the intake pipe 1 between the lubrication tank 101 and the valve 145
26, an air supply pipe 127 for introducing the atmosphere into the depressurized oil supply tank 101 to bring the inside of the oil supply tank 101 to the atmospheric pressure.
Branch and connect. A valve 146 is provided in the middle of the air supply pipe 127, and a filter 118 is provided at the tip.

This oiling device is provided with a control unit 116 for collectively controlling the oiling device. Control unit 11
6, and the respective constituent elements 101, 109, 126 of the lubrication device
.. and the control circuits 117a, 117b, 117c ..
・ Connected via.

Also in this embodiment, as in the modification of the first embodiment, the oil supply pump 10 is provided in the middle of the oil supply pipe 122.
Without providing 6, the upper space in the oil tank is connected to a cylinder of an inert gas such as nitrogen gas, and an air supply pipe provided with a valve is connected in the middle to add a high pressure inert gas such as nitrogen gas. The oil in the oil tank may be pressure-fed toward the oil tank by pressure. Similarly, an air supply pipe 127 provided with a valve 146 for introducing the atmosphere into the pressure-reduced oil supply tank 101 to bring the inside of the oil supply tank 101 to the atmospheric pressure.
In addition, by branching and connecting an air supply pipe communicating with the cylinder of the inert gas, it is possible to introduce the inert gas instead of introducing the atmosphere into the lubrication tank.

As a result, it is possible to reduce the risk of fire and explosion during the oiling work of the percussion torque generator K, which improves the safety and to reduce the amount of oxygen dissolved in the oil. It is possible to reduce the impact torque generating device K
It is possible to prevent the oil injected and filled inside from being oxidized.

Next, a method of lubricating the impact torque generating device using this lubricating device will be described. Impact torque generator K
In order to inject and fill a predetermined amount of viscous oil, first, the lid 101b of the oil supply tank 101 is opened, the striking torque generator K is placed on the shelf 101a, and then the lid 101b is closed. At this time, the shelf 101a is installed at an upper position where the oil introduced into the oil tank 101 does not enter the striking torque generator K placed on the shelf 101a. The oil supply pump 106 is driven to move the oil tank 105 to the oil supply tank 101.
A predetermined amount of oil is supplied into the inside. Valves 142, 147, 14
With 6 closed, open the valve 145 and
The vacuum pump 115 is driven. As a result, the intake pipe 12
Lubrication tank 1 connected to vacuum pump 115 via 6
The inside of 01 is decompressed, and at the same time, the inside of the striking torque generator K is decompressed as well. At this time, the air dissolved in the oil in the oil supply tank 101 is degassed.

By depressurizing the inside of the lubricating tank 101 to a predetermined negative pressure, and operating the hydraulic cylinder 102 by the hydraulic unit 104 while maintaining the depressurized state of the lubricating tank 101, the impact torque generating device K is mounted. The striking torque generator K applies the oil to the shelf 101a
It is lowered to a lower position where it is immersed in the oil introduced therein.
As a result, the oil introduced into the oil supply tank 101 is naturally depressurized, that is, the oil is naturally injected and filled into the striking torque generator K in which the air inside has been completely discharged. At the same time, the valve 145 is closed, the vacuum pump 115 is stopped, the valve 146 is opened, and the atmosphere is introduced into the depressurized oil supply tank 101 to bring the inside of the oil supply tank 101 to atmospheric pressure.

[0042]

According to the first aspect of the present invention, after the striking torque generator for injecting and filling oil is housed in the oil tank, the pressure in the oil tank is reduced and the oil is injected while maintaining the reduced pressure state. By introducing oil into the tank, the air inside the striking torque generator was completely discharged to the outside of the striking torque generator and replaced with oil without being affected by the viscosity of the oil, etc., and stored in the lubrication tank. It is possible to inject and fill oil into the striking torque generating device, which makes it possible to reliably fill viscous oil into the striking torque generating device having a complicated internal structure, and Can be accurately filled with an appropriate amount of oil. Also degassing
Introduce the deaerated oil in the oil tank into the oil tank.
The air dissolved in the oil can be degassed by
The impact torque generator can be filled with an appropriate amount of oil more accurately.
Can be filled. Furthermore, by the impurity removal circuit,
The metal that is mixed in the oil supplied to the degassing oil tank
Pure material can be removed.

According to the second aspect of the invention, oil is injected,
After the striking torque generator to be filled is stored in a position in the oil tank where the oil introduced into the oil tank does not enter, the inside of the oil tank is depressurized and then introduced into the oil tank while maintaining the depressurized state. By immersing the striking torque generator in the oil, the air in the striking torque generator is completely discharged to the outside of the striking torque generator and replaced with oil without being affected by the viscosity of the oil. It is possible to inject and fill oil into the striking torque generator housed in
As a result, it is possible to reliably fill viscous oil into the striking torque generator with a complicated internal structure, and to deaerate the air dissolved in the oil in the lubrication tank, thereby striking torque. An appropriate amount of oil can be accurately filled in the generator.

According to the third aspect of the present invention, the oil is pressure-fed by the pressure of an inert gas such as high-pressure nitrogen gas and introduced into the oil-filling tank, so that the impact torque generator can be filled with oil during the oil-filling operation. The risk of fire and explosion can be reduced, safety is improved, and the amount of oxygen dissolved in the oil can be reduced. Can be prevented.

According to the inventions of claims 4 and 5 , the method of the present invention can be easily implemented.

According to the sixth aspect of the present invention, by providing the temperature adjusting mechanism for the oil to be injected and filled in the striking torque generating device, it is possible to eliminate the influence of the volume change of the oil due to the temperature change. It is possible to accurately fill an appropriate amount of oil in the striking torque generator.

According to the seventh aspect of the present invention, by providing the ultrasonic oscillator in the oil filling tank, the bubbles and dissolved air mixed in the oil are degassed and the oil is injected into the striking torque generator. , Filling can be performed smoothly, and metal impurities and other impurities mixed in the oil are prevented from settling and accumulating on the bottom of the lubrication tank.
The efficiency of collecting impurities by the magnet and the filter of the impurity removing circuit can be improved.

[Brief description of drawings]

FIG. 1 is a schematic view showing a first embodiment of an oiling device for an impact torque generating device of the present invention.

FIG. 2 is a schematic view showing the same modified example.

FIG. 3 is a schematic view showing a second embodiment of an oiling device for an impact torque generating device of the present invention.

FIG. 4 is a cross-sectional view showing an example of a known oiling device for an impact torque generating device.

[Explanation of symbols]

1 Lubrication tank 2 Degassing oil tank 6 Ultrasonic oscillator 11 Decompression mechanism (vacuum pump) 61 Temperature control mechanism (heater) 62 Temperature control mechanism (heater) 63 Temperature control mechanism (heater) 101 lubrication tank 102 Lifting mechanism (hydraulic cylinder) 108 Temperature control mechanism (heater jacket) 115 Decompression mechanism (vacuum pump) K striking torque generator

Continuation of the front page (56) References JP-A-58-199506 (JP, A) JP-A-6-39739 (JP, A) JP-A 61-89999 (JP, A) JP-A-58-23421 (JP , A) JP 54-118524 (JP, A) JP 2-137204 (JP, A) JP 6-206055 (JP, A) JP 6-15239 (JP, A) JP 58-115806 (JP, A) Actually open 3-30415 (JP, U) Actually open 58-103123 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B25B 21/00 -23/18 F04F 1/02 H01F 27/14 B67C 3/00-11/06 B65B 1/00-3/36

Claims (7)

(57) [Claims] 1. A striking torque generator for injecting and filling oil is housed in an oiling tank , the inside of the oiling tank is depressurized, and the degassing oil tank is degassed while maintaining the depressurized state.
By introducing the degassed oil from the air-fuel oil tank into the lubrication tank , oil is injected and filled into the striking torque generator housed in the lubrication tank, and
Impurities contained in the remaining oil are removed from the oil tank and the degassing oil tank.
The impurity removal circuit provided in the oil supply pipe that connects
A method for injecting oil into a percussion torque generator, characterized in that the oil is returned to the inside of the oil tank while being removed . 2. A striking torque generator for injecting and filling oil is housed in a position in the oil tank where oil introduced into the oil tank does not enter, and then the inside of the oil tank is depressurized to reduce the pressure. To a striking torque generating device characterized by injecting and filling oil into the striking torque generating device housed in the lubricating tank by immersing the striking torque generating device in the oil introduced into the lubricating tank while holding it. Lubrication method. 3. The oil is pressure-fed by the pressure of a high-pressure inert gas and introduced into the oil-filling tank.
A method for lubricating an impact torque generating device as described in 1 or 2 . 4. A degassing oil tank for temporarily storing oil, an oiling tank for housing a striking torque generator for injecting and filling oil, and depressurizing the inside of the degassing oil tank and the oiling tank. And a decompression mechanism for
Degas by connecting the tank and the lubrication tank via the oil supply pipe.
Introduce the deaerated oil in the oil tank into the oil tank
The oil tank and the degassing oil tank.
Lubrication by connecting via an oil transfer pipe equipped with an impurity removal circuit
Oil remaining in the tank is removed by removing impurities contained in the oil.
An oiling device for a striking torque generating device characterized by being returned to the inside of a tank . 5. An oil-filling tank containing a percussion torque generator for injecting and filling oil, and a percussion torque generator contained within the lubrication tank are introduced into the percolation tank within the percussion torque generator. Characterized by an elevating mechanism selectively installed at a position where oil does not enter and a position where the striking torque generator is immersed in the oil introduced into the oil tank, and a pressure reducing mechanism for depressurizing the oil tank. An oiling device for the striking torque generator. 6. An oiling device for an impact torque generator according to claim 4, further comprising a temperature adjusting mechanism for adjusting a temperature of oil to be injected and filled in the impact torque generator. 7. The lubrication device for an impact torque generating device according to claim 4, 5 or 6, wherein an ultrasonic oscillator is provided in the lubrication tank.