JP6099201B2 - Overhead conveyor - Google Patents

Description

  The present invention relates to an overhead wire transport device used for transporting an object to be transported along an overhead wire stretched between two points.

  As one of the transporting devices used for collecting timber harvested in a mountain forest or the like, a running skyline overhead wire transporting device is generally used.

  However, the above-mentioned running skyline overhead wire transport device has drawbacks such as that the cable tension is likely to be insufficient and that loading is troublesome. To compensate for this disadvantage, An overhead wire transport device has been proposed in the past.

  Such a three-wire overhead wire transport device includes a hole back drum, a main drum, and a slack pulling drum that can be driven by individual hydraulic motors.

  The hall-back line fed out from the hall-back drum forms an upper overhead line portion from a certain first point where each drum is installed to a fixed pulley installed at a second point separated by a desired interval. It is stretched out. The tip end side of the hole back line wound around the fixed pulley is connected to a transporter supported movably on the upper overhead wire portion.

  The carrying device is provided with a direction changing drum, and the longitudinal direction intermediate portion of one piece of rope is wound around the direction changing drum a plurality of times, and one end side of the rope is used as a main line. The main drum is wound up, and the other end side of the rope is wound up as a slack pulling line on the slack pulling drum.

  Further, the carrying device is provided with a hanging drum around which a hoist line for suspending the object to be carried is suspended. The suspension drum is connected to the direction change drum via a power transmission means such as a sprocket and a chain, and can be rotated in synchronization with the rotation of the direction change drum.

  The overhead wire transport device having the above-described configuration allows the main line and the slack pulling line to be fed out by the main drum and the slack pulling drum at the same time as the winding of the hall back line by the hole back drum. The movement to the second point side can be performed.

  On the other hand, contrary to the above, the hall back drum causes the hall back line to be fed out, and at the same time, the main drum and the slack pulling drum cause the main line and the slack pulling line to be wound up. Thus, the transporter can be moved to the first point side.

  Furthermore, when the transporter is stopped, when the main line is fed out by the main drum and the slack pulling line is wound up by the slack pulling drum in synchronization, the rotation of the direction changing drum causes the The hoist line can be suspended from the carrier by rotating the suspension drum in the feeding direction.

  On the other hand, the winding of the main line by the winch for the main line and the feeding of the slack pulling line by the winch for the slack pulling line are performed in synchronization with the rotation of the direction change drum. The hoist line can be lifted toward the carrier by rotating the hoisting drum in the winding direction.

  Furthermore, the 3-wire overhead wire transport device is configured to operate synchronously between the hall back drum and the main drum in a state where the operation directions of the winding side and the feeding side are opposite to each other. In addition to the clutch means, another clutch means is also provided between the hole back drum and the slack pulling drum for synchronous operation in a state where the operation directions are reversed on the winding side and the feeding side. (For example, refer to Patent Document 1).

JP 2012-101912 A

  However, the overhead conveying device shown in Patent Document 1 has a force for lifting the object to be conveyed from the portable device via the hoist line in a state where the movement of the portable device is stopped. Depends on the output of one hydraulic motor.

  In addition, when the object to be transported is suspended from the transporter via the hoist line, cable tension is always generated in the main line. Therefore, while the object to be transported is suspended from the transporter, the main drum There is always a load on one hydraulic motor.

  Therefore, the present invention further develops the overhead-line transport device shown in Patent Document 1 above, and suspends the object to be transported from the transporter via the hoist line. The output of the hydraulic motor can be used, and the maximum value of the cable tension acting on the main line and slack pulling line can be suppressed, so that the maximum load of the hydraulic motor used for hanging the object to be transported can be suppressed. An object of the present invention is to provide an overhead wire transport device capable of reducing the value.

  In order to solve the above-mentioned problem, the present invention, corresponding to claim 1, comprises a hall back drum, a main drum and a slack pulling drum which are individually driven by a motor, and the hall back line fed out from the hall back drum. Is connected so as to form an upper overhead wire portion with a fixed pulley separated by a desired distance, and the tip of the hole back line wound around the fixed pulley is connected to a carrier that is movably supported by the upper overhead wire portion. The one end side of the cord wound around the direction changing drum provided in the transporter is wound around the main drum as a main line, and the other end side of the cord is used as a slack pulling line. The slack pulling drum is wound up, and the carrying device further includes a hoisting drum wound with a hoist line, and the hoisting drum and the direction change are provided. In the overhead-line transport device in which the ram is connected via a power transmission means, the main drum and the slack are connected to the hall back drum, the main drum, and the slack pulling drum in a state where the hole back drum is stopped. About the pulling drum, the function of interlock control so that one line feeding operation and the other line winding operation are interlocked and synchronized with each other, and the set of the hole back drum, the main drum and the slack pulling drum The overhanging type transporting apparatus having a configuration in which one line feeding operation and the other line winding operation are connected via an interlock mechanism having an interlock control function so as to synchronize and synchronize with each other. .

  Further, in accordance with claim 2, in the above configuration, the interlock mechanism includes a first clutch in which shafts of a main drum and a hall back drum, which are arranged so that the directions of the hydraulic motor face each other, are arranged in order. Means, a first intermediate shaft and a second clutch means connected to each other, and a shaft of a slack pulling drum arranged so that the directions of the hole back drum and the hydraulic motor are parallel to each other, and the first intermediate shaft In addition, gears with the same number of teeth are attached so as to mesh with each other, and a second intermediate shaft is connected to the shaft of the slack pulling drum via third clutch means, and the second intermediate shaft In addition, another gear having a diameter and the same number of teeth that are not directly meshed with each other is attached to the shaft of the main drum, and an intermediate gear is meshed with each of the other gears.

According to the overhead wire conveying device of the present invention, the following excellent effects are exhibited.
(1) When lifting or unloading the object to be transported while the transporter is stopped, the main drum and slack pulling drum are in a state in which one line winding operation and the other line feeding operation are synchronized with each other. Since interlock control can be performed so as to be interlocked with each other, the rope tension can be shared between the main line and the slack pulling line when the object to be transported is suspended from the carrier via the hoist line. Thereby, the maximum value of the cord tension acting on the main line and the slack pulling line can be suppressed.
(2) The output of the two hydraulic motors for the main drum and the slack pulling drum can be used as the lifting force when the object to be transported is suspended from the carrier via the hoist line. For this reason, the maximum value of the load of the two hydraulic motors used to suspend the object to be transported can be reduced. Moreover, it becomes possible to increase the unloading force of the carrier.
(3) Further, while the object to be conveyed is suspended from the carrier as described above, the hydraulic pressure of the main drum and the slack pulling drum is caused by the fact that the cable tension is applied to both the main line and the slack pulling line. Even if the load of the motor is removed, it is possible to maintain the state in which the object to be transported is suspended from the transporter. Therefore, it is possible to reduce the load on the hydraulic motor for the main drum and slack pulling drum.
(4) The interlock mechanism is configured as described in claim 2 so that the main drum and the slack are placed in a state in which the hole back drum, the main drum, and the slack pulling drum are stopped. About the pulling drum, the function of interlock control so that one line feeding operation and the other line winding operation are interlocked and synchronized with each other, and the set of the hole back drum, the main drum and the slack pulling drum An interlock mechanism having a function of interlock control so that one line feeding operation and the other line winding operation are synchronized with each other can be easily realized.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of an overhead wire transport device according to the present invention, where (a) is a schematic diagram showing the overall configuration, and (b) is an enlarged view showing the configuration of each drum. (A) is an AA direction arrow view of FIG.1 (b), (b) is a BB direction arrow view of FIG.1 (b).

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  FIGS. 1A and 1B and FIGS. 2A and 2B show an embodiment of the overhead wire conveying device of the present invention.

  That is, the overhead wire conveying device of the present invention is indicated by reference numeral 1 in FIG. 1A, and includes a hall back drum 2, a main drum 3, and a slack pulling drum 4 at a certain first point.

  As shown in FIG. 1B, the hole back drum 2, the main drum 3 and the slack pulling drum 4 are a pair of drum bodies 5, 5 and 6, 6 and 7, 7, Each is equipped. The two drum bodies 5, 5, 6, 6, 7, and 7 of the drums 2, 3, and 4 include hydraulic motors 8, 10, and 12, a sprocket (not shown), and chains 9 and 11, respectively. , 13 can be driven to rotate together.

  Further, the hole back drum 2, the main drum 3, and the slack pulling drum 4 are respectively connected to the drum main bodies 5, 5, 6, 6, 7, and 7 with a corresponding hole back line 14, main line 15, and slack pulling line 16. Are wound around each other. As a result, the hole back drum 2, the main drum 3, and the slack pulling drum 4 can be used when the corresponding lines 14, 15, 16 are fed out or wound up. The winding diameters at 6, 7, and 7 are not changed. Therefore, the hole back drum 2, the main drum 3 and the slack pulling drum 4 are arranged in such a manner that the respective drum bodies 5, 5, 6, 6, 7, 7 having the same diameter are arranged to have the same rotation amount. The lengths of the lines 14, 15, 16 that are fed out from 2, 3, 4 or wound up can be controlled to be the same. Further, the lines 14, 15, and 16 are easily stretched over a long distance due to the increased amount of winding in the corresponding hall back drum 2, main drum 3, and slack pulling drum 4. It is supposed to be.

  Between the hole back drum 2, the main drum 3, and the slack pulling drum 4, an interlock mechanism 17 having the following two functions is interposed.

  The first function of the interlock mechanism 17 is to synchronize (link) the line feeding operation of the hall back drum 2 and the line winding operation of the main drum 3 and the slack pulling drum 4. This is a function for synchronizing (interlocking) the line winding operation with the line feeding operation of the main drum 3 and the slack pulling drum 4.

  Further, the second function of the interlock mechanism 17 is that the main drum 3 and the slack pulling drum 4 with respect to the main drum 3 and the slack pulling drum 4 in a state where the hole back drum 2 is stopped and the other one. This function synchronizes (interlocks) the line winding operation with each other.

  In the structure of the interlock mechanism 17 having the above functions, for example, the hole back drum 2 and the main drum 3 are arranged so that the directions of the corresponding hydraulic motors 8 and 10 face each other. The slack pulling drum 4 is arranged so that the directions of the corresponding hydraulic motors 12 and 8 are parallel to the hole back drum 2.

  The main drum 3 has a shaft 18 of the drum main body 6 to which the hydraulic motor 10 is directly connected protruding from the drum main body 6, and the first drum means 19 is connected to the first drum means 19 via the first clutch means 19. One end of the intermediate shaft 20 is connected.

  The other end of the first intermediate shaft 20 is connected to the shaft 21 of the drum main body 5 to which the hydraulic motor 8 in the hall back drum 2 is directly connected via the second clutch means 22. It is.

  In the slack pulling drum 4, the shaft 23 of the drum body 7 to which the hydraulic motor 12 is directly connected is protruded from the drum body 7. On the outer periphery of the protruding portion of the shaft 23 and the outer periphery of the intermediate portion in the longitudinal direction of the first intermediate shaft 20, as shown in FIG. 1 (b) and FIG. 25 are attached so as to mesh with each other.

  Further, one end portion of the second intermediate shaft 27 is attached to the end portion of the shaft 23 of the slack pulling drum 4 through the third clutch means 26 as shown in FIG. It is. Gears 28 and 29 having the same diameter and the same number of teeth are located in the same vertical plane on the outer periphery of the second intermediate shaft 27 and the outer periphery of the protruding portion of the shaft 18 of the main drum 3. Each is attached in the same way. Further, the gears 28 and 29 are configured to mesh with an intermediate gear 30 that is rotatably supported by a fixed portion (not shown).

  In FIG. 1A, for convenience of illustration, the description of the interlock mechanism 17 provided between the drums 2, 3, 4 is omitted. In FIG. 1 (a), for convenience of explanation, the drums 2, 3, and 4 are shown in postures viewed from the corresponding hydraulic motors 8, 10, and 12, respectively.

  With the above configuration, the interlock mechanism 17 connects the first clutch means 19 and the second clutch means 22 and disconnects the hole back drum when the third clutch means 26 is disconnected. 2 in the counterclockwise direction when viewed from the corresponding hydraulic motor 8 side, and clockwise rotation as viewed from the respective hydraulic motors 10 and 12 side of the main drum 3 and slack pulling drum 4 (clockwise). ) Direction rotational drive can be carried out synchronously. Further, when the hall back drum 2 is rotated in the opposite direction to the corresponding hydraulic motor 8, the hydraulic motor 10 rotates in the clockwise direction (clockwise) as viewed from the corresponding hydraulic motor 8 side, and the hydraulic motor 10 of each of the main drum 3 and the slack pulling drum 4. , 12 in a counterclockwise (counterclockwise) direction when viewed from the side, and can be executed synchronously.

  Therefore, in this state, when the hole back line 14 is fed out from the hole back drum 2, the main line 15 has a length corresponding to the feed length of the hole back line 14 by the main drum 3 and the slack pulling drum 4. The slack pulling line 16 can be wound up. Contrary to the above, when the hole back line 14 is wound by the hole back drum 2, the main drum 3 and the slack pulling drum 4 have a length corresponding to the winding length of the hole back line 14. The main line 15 and the slack pulling line 16 can be fed out.

  In addition, the interlock mechanism 17 disconnects the first clutch means 19 and the second clutch means 22 and connects the third clutch means 26 to the corresponding hydraulic motor 10 of the main drum 3. Rotational driving in the clockwise (clockwise) direction when viewed from the side and rotational driving in the counterclockwise (counterclockwise) direction when viewed from the corresponding hydraulic motor 12 side of the slack pulling drum 4 are performed in synchronization. I can do it. Contrary to the above, the main drum 3 is rotated counterclockwise (counterclockwise) when viewed from the corresponding hydraulic motor 10 side and the slack pulling drum 4 is viewed from the corresponding hydraulic motor 12 side. Rotational driving in the rotating (clockwise) direction can be performed synchronously.

  Therefore, in this state, when the main line 15 is fed out by the main drum 3, the slack pulling line 16 can be wound by the slack pulling drum 4 with a length corresponding to the feeding length of the main line 15. It is like that. On the contrary, when the main line 15 is wound up by the main drum 3, the slack pulling line 16 is fed out by the slack pulling drum 4 at a length corresponding to the winding length of the main line 15. I can do it.

  The hole back line 14 drawn out (drawn out) from the hole back drum 2 passes through a pulley 31 attached to a main pillar (not shown) erected at the first point, and a second space separated by a desired distance. The upper overhead wire portion 14a is stretched to a fixed pulley 32 installed on a point pillar (not shown) of the point. The front end side of the hall back line 14 is arranged so as to be folded by being wound around the fixed pulley 32, and the front end of the hall back line 14 is mounted on a carrier 33 that is movably supported by the upper overhead wire portion 14a. Connected.

  Two rollers 34 for running along the upper side of the upper overhead wire portion 14a are provided at an upper end portion of the transporter 33 at a certain interval.

  The transporter 33 is provided with, for example, a direction changing drum 35 including a pair of grooved drums 36a and 36b as the direction changing drum 35. The first and second grooved drums 36a and 36b of the direction changing drum 35 are wound around the longitudinal intermediate portion of one rope multiple times, and one end side of the rope is The main drum 15 is wound around the main drum 3, and the other end is wound around the slack pulling drum 4 as the slack pulling line 16.

  A driving sprocket 38 that rotates integrally with the corresponding grooved drums 36a and 36b is attached to one or both of the rotation shafts 37 of the grooved drums 36a and 36b of the direction changing drum 35.

  Further, the carrying device 33 is provided with a hanging drum 39 around which a hoist line 40 for suspending a not-shown object to be carried is hung from the carrying device 33. In the suspension drum 39, a driven sprocket 42 that rotates integrally with the suspension drum 39 is attached to a rotation shaft 41.

  A chain 43 as an endless power transmission means is wound around the driving sprocket 38 and the driven sprocket 42. As a result, in the transporter 33, when the grooved drums 36a and 36b of the direction changing drum 35 rotate, the rotational driving force is transmitted via the driving sprocket 38, the chain 43, and the driven sprocket 42. It is transmitted to the suspension drum 39, and the suspension drum 39 is driven to rotate in the same direction as the rotation direction of the direction changing drum 35 so that the hoist line 40 can be lifted or lowered.

  At the lower end (tip) of the hoist line 40, there is provided a hanging tool 44 for hanging an object not shown.

  Reference numerals 45 and 46 in FIG. 1 are pulleys for individually guiding the main line 15 and the slack pulling line 16 by being attached to a main pillar (not shown).

  The overhead wire conveying device 1 according to the present invention having the above-described configuration is configured such that when the hoist line 40 is moved up and down by the suspension drum 39 while the transporter 33 is stopped, the first clutch in the interlock mechanism 17 is used. The means 19 and the second clutch means 22 are disconnected, and the third clutch means 26 is in a connected state. Further, the hall back drum 2 is configured such that the drum bodies 5 and 5 are not rotated by a brake or the like (not shown) in advance so that the weight of the transport device 33 and the weight of the object to be transported (not shown) Even if it acts on the overhead wire portion 14a, the hall back line 14 from the hall back drum 2 is prevented from being unwound.

  In this state, when the winding operation of the main line 15 by the main drum 3 and the feeding operation of the slack pulling line 16 by the slack pulling drum 4 are performed synchronously, Along with the rotation of the grooved drums 36a and 36b, the suspension drum 39 is rotationally driven in the counterclockwise direction in FIG. Thereby, in the said suspension drum 39, the hoist line 40 and the suspension tool 44 of the front end side are suspended.

  On the other hand, when the feeding operation of the main line 15 by the main drum 3 and the winding operation of the slack pulling line 16 by the slack pulling drum 4 are performed synchronously in the above state, As the 35 grooved drums 36a and 36b rotate, the suspension drum 39 is rotationally driven in the clockwise direction in FIG. Thereby, in the said suspension drum 39, the hoist line 40 and the lifting tool 44 of the front end side are lifted.

  As described above, when the hoist line 40 and the lifting tool 44 are suspended and lifted from the suspension drum 39 of the transporter 33, the interlock mechanism 17 causes the main drum 3 and the slack pulling drum 4 to feed one line. The operation and the other line winding operation are synchronized with each other (interlock controlled). For this reason, the load of the object to be hung by the hanger 44 on the tip side of the hoist line 40 can be shared by the cable tensions of both the main line 15 and the slack pulling line 16.

  Therefore, the lifting force for lifting the object to be conveyed from the transporter 33 through the hoist line 40 can use the outputs of the two hydraulic motors 10 and 12 corresponding to the main drum 3 and the slack pulling drum 4. . For this reason, the unloading force of the said carrying device 33 can be increased compared with the past.

  When the object to be transported is suspended from the transporter 33 via the hoist line 40, the main drum 3 and the slack pulling drum 4 are interlock-controlled as described above, so that the main drum 3 and the slack pulling drum are controlled. Since the cable tension is applied to both of them, even if the loads of the hydraulic motors 10 and 12 of the main drum 3 and the slack pulling drum 4 are removed, it is possible to maintain the state where the object to be transported is suspended from the transporter 33. . Therefore, it is possible to reduce the load on the hydraulic motors 10 and 12 for the main drum 3 and the slack pulling drum 4.

  Next, when the overhead carrying device 1 of the present invention causes the transporter 33 to move, the first clutch means 19 and the second clutch means 22 in the interlock mechanism 17 are connected, and the third clutch means is connected. 26 is cut off. When the transporter 33 is moved, the rotation preventing state of the drum main bodies 5 and 5 by a brake or the like (not shown) of the hall back drum 2 is canceled in advance.

  In this state, when the winding operation of the hole back line 14 by the hole back drum 2 and the feeding operation of the main line 15 and the slack pulling line 16 by the main drum 3 and the slack pulling drum 4 are performed synchronously, The transporter 33 is moved to the second point side, which is the fixed pulley 32 side.

  On the other hand, in the above state, the feeding operation of the hall back line 14 by the hall back drum 2 and the winding operation of the main line 15 and the slack pulling line 16 by the main drum 3 and the slack pulling drum 4 are performed synchronously. And the said carrying device 33 comes to be moved to the 1st point side which is the said pulley 31 side.

  Accordingly, when the transporter 33 is moved to either the first point side or the second point side, the rope tension is applied to all of the hole back line 14, the main line 15, and the slack pulling line 16. Become. Therefore, the output of the hydraulic motors 8, 10, and 12 of the hall back drum 2, the main drum 3, and the slack pulling drum 4 can be used for the movement of the transporter 33. Further, in this state, even if the loads of the hydraulic motors 8, 10, and 12 are removed, inadvertent movement of the transporter 33 can be prevented. Therefore, it is possible to reduce the load on the hydraulic motors 8, 10, 12 of the hall back drum 2, the main drum 3, and the slack pulling drum 4.

  Note that the present invention is not limited only to the above-described embodiment, and the interlock mechanism 17 is configured so that one of the main drum 3 and the slack pulling drum 4 is in a state where the hole back drum 2 is stopped. Interlocking control is performed so that the line feeding operation and the other line winding operation are synchronized with each other, and the group of the hole back drum 2, the main drum 3 and the slack pulling drum 4 is set to one line feeding. Each clutch means 19 for the shafts 21, 18 and 23 of the drums 2, 3 and 4 has a function of interlock control so that the operation and the other line winding operation are synchronized with each other. , 22, 26, and the number, arrangement, and connection structure of the intermediate shafts 20, 27 are shown in FIGS. ) May be employed of a type other than that shown in (b).

  The transporter 33 has a direction changing drum 35 in which an intermediate portion of a cord member having one end side as a main line 15 and the other end side as a slack pulling line 16 is wound, and accompanying the rotation of the direction changing drum 35. If the suspension drum 39 around which the hoist line 40 is wound can be rotationally driven, a power transmission mechanism for transmitting a rotational driving force from the direction changing drum 35 to the suspension drum 39 is shown in FIG. Any type of power transmission mechanism other than the above may be adopted. Moreover, the arrangement | positioning of the direction change drum 35 and the suspension drum 39 in the said carrying device 33 may be arbitrary arrangement | positioning other than having shown to Fig.1 (a).

  Of course, various modifications can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Overhead type conveyance device 2 Hall back drum 3 Main drum 4 Slack pulling drum 8 Hydraulic motor (motor)
10 Hydraulic motor
12 Hydraulic motor
14 hall back line 14a upper overhead line portion 15 main line 16 slack pulling line 17 interlock mechanism 18 shaft 19 first clutch means 20 first intermediate shaft 21 shaft 22 second clutch means 23 shaft 24 gear 25 gear 27 second Intermediate shaft 26 third clutch means 28 gear (another gear)
29 Gear (another gear)
30 intermediate gear 32 fixed pulley 33 transporter 35 direction change drum 38 drive sprocket (power transmission means)
39 Suspended drum 40 Hoist line 42 Drive sprocket (power transmission means)
43 Chain (Power transmission means)

Claims (2)

A hall back drum, main drum, and slack pulling drum that are individually driven by a motor are provided. One end portion of the cord material wound around the direction change drum provided in the carrying device, wherein the tip of the hall back line wound around the fixed pulley is connected to the carrying device movably supported by the upper overhead wire portion. The side is wound around the main drum as a main line, and the other end side of the rope is wound around the slack pulling drum as a slack pulling line, and a hoist line is wound around the carrier. An overhead wire transport device comprising a suspension drum and having the suspension drum and the direction changing drum connected via power transmission means Oite,
With the hole back drum, the main drum, and the slack pulling drum in a state where the hole back drum is stopped, one line feeding operation and the other line winding operation are performed for the main drum and the slack pulling drum. The function of interlock control to synchronize with each other, the above-mentioned hall back drum, and the main drum and slack pulling drum set, one line feeding operation and the other line winding operation are mutually synchronized. An overhead wire transport device characterized by having a configuration connected via an interlock mechanism having a function of interlock control so as to be interlocked with each other. The interlock mechanism includes a first clutch means, a first intermediate shaft, and a second clutch means in which shafts of a main drum and a hall-back drum arranged so that the directions of the hydraulic motor face each other are arranged in order. Connect through
And the same number of gears are attached to the shaft of the slack pulling drum arranged so that the directions of the hole back drum and the hydraulic motor are parallel and the first intermediate shaft so as to mesh with each other,
Furthermore, a second intermediate shaft is connected to the shaft of the slack pulling drum via a third clutch means,
The second intermediate shaft and the main drum shaft are attached with different gears having the same diameter and the same number of teeth that are not meshed with each other, and the intermediate gears are meshed with both of the different gears. The overhead wire conveying device according to claim 1.

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