JP2849253B2 - Rail fastening metal release device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for disassembling rail fasteners used in railroad rail replacement work.

[0002]

2. Description of the Related Art Generally, when replacing rails on a railroad track, it is necessary to remove rail fasteners for fixing the rails to sleepers. Conventionally, such operations have been carried out by a worker using a socket wrench. This has been done by loosening the bolts of the fasteners one by one and removing another rail fastener from the sleeper by another worker.

[0003]

However, if the worker manually removes the rail fastening as described above,
It took a lot of effort and time and was very inefficient.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a rail fastener releasing device which can save labor and time for removing and attaching the rail fastener.

[0005]

SUMMARY OF THE INVENTION The present invention provides a traveling vehicle that can travel on a rail fixed to railroad ties by rail fasteners, and a movable vehicle on the traveling vehicle in a direction parallel to the traveling direction of the traveling vehicle. A left and right working truck mounted thereon, a bolt disengaging machine having a socket wrench portion which is provided on the working truck so as to be able to ascend and descend, and which can tighten and loosen the bolts of the rail fasteners; A rail fastening metal disengaging device comprising: a gripping / conveying device which is provided so as to be movable in a direction perpendicular to the moving direction of the bogie and is capable of gripping the rail fastening hardware and dropping the rail fastening hardware to a required position. An elastic aligning device capable of supporting the bolt disengaging device by a supporting device that allows the bolt disengaging device to be tilted with respect to a vertical line, and an elastic aligning device capable of holding a posture of the bolt disengaging device substantially vertically; A skirt member having a mortar-shaped guide surface for guiding the fitting hole of the socket wrench part to the bolt head is urged by an elastic member to project toward the lower end side of the socket wrench part at the lower end of the chin part. A position detection unit that is slidably fitted to the outside and formed to be contractable via an elastic member that urges the shaft of the socket wrench in the extension direction, and detects a contraction stroke end position of the shaft of the socket wrench. It is characterized by having a vessel.

[0006]

Therefore, the traveling trolley is advanced at a constant speed with the work trolley standing by at the reference position, and when the bolt deliever is disposed at the bolt head position of the rail fastener to be removed, the bolt is released. Lowering the bolt disengaging device and the gripping / transporting device while moving the work vehicle with respect to the traveling vehicle at a constant speed in a direction opposite to the traveling direction so that the machine is relatively stopped at the bolt head position. Then, the rail fastener is gripped by the gripping and conveying device, and the skirt member is pressed against the upper surface of the rail fastener and slides against the urging force of the elastic member, so that the fitting hole of the socket wrench of the bolt disengaging machine is inserted. The socket is fitted to the bolt head, and in this state, the bolt disengaging machine is further lowered. When the shaft of the socket wrench contracts and reaches the contraction stroke end position, the fitting hole is bolted by the position detector. Is detected, the socket wrench is rotated, and the bolt disengaging device and the gripping and conveying device are raised at a speed synchronized with the rotation speed of the socket wrench portion. The bolts are loosened, and the rail fastening is removed from the sleeper.After that, the gripping / transporting device moves in a direction perpendicular to the moving direction of the work carriage, and the rail fastening is removed from the sleeper to a required position. Dropped.

On the other hand, when the rail fastener is reattached after the rail is replaced, the bolts of the rail fastener temporarily fixed to the sleepers by the operator are sequentially tightened by the bolt disengaging machine.

[0008] Even when there is an error in the positioning of the bolt disengaging machine with respect to the bolt head position at the time of removing and attaching the rail fastening bracket, when the bolt disengaging machine is lowered, the skirt member is guided. The fitting hole of the socket wrench part is guided to the bolt head position by the surface, and it fits securely,
At this time, the bolt disengaging machine supported by the support device,
The bolt is disengaged in a required direction with respect to the vertical line by an amount corresponding to the error against the elastic force of the elastic aligning device which intends to hold the posture of the bolt disengaging device substantially vertically, and the positioning error occurs. When the socket wrench part is detached from the bolt head while the bolt is released, the posture of the bolt disengaging machine becomes substantially vertical again by the elastic centering device and is held.

When the track is curved, the sleeper and the rail are inclined in order to prevent derailment due to centrifugal force. Therefore, the traveling carriage is inclined accordingly. The positional relationship between the disintegrator and the traveling vehicle can be maintained as in the case of horizontal rails.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 5 show an embodiment of the present invention, in which a rail 3 fixed to a sleeper 1 by a rail fastening 2 is shown.
A traveling vehicle 5 that can travel at a required speed in a direction indicated by an arrow in FIGS. 1 and 2 by a driving device 4 such as a motor is mounted on the top, and guide rails 6 parallel to the left and right rails 3 are respectively mounted on the traveling vehicle 5. Lay it.

A work vehicle 8 is mounted on each of the left and right guide rails 6 of the traveling vehicle 5 so as to be movable via a guide roller 7, and the work is mounted on a rack 9 fixed below the guide rail 6. A pinion 11 that is rotationally driven by a driving device 10 such as a motor installed on the carriage 8 is engaged.

The left and right ends of a connecting boom 12 extending parallel to the sleeper 1 are pivotally mounted on a bracket 30 projecting from the left and right working carts 8 so as to be horizontally swingable about a vertically extending pivot shaft 13. .

Two sets of support frames 14 are attached to both ends of the connecting boom 12 integral with the left and right work carts 8, respectively, and a lift 16 is mounted on a guide member 15 provided in the vertical direction of each support frame 14. It is provided so as to be able to move up and down by the expansion and contraction of a cylinder 17, and a bolt wrench having a socket wrench 18b which can be loosened on the lift 16 by being rotated by a drive source in a main body 18a and tightened with a bolt 2a of a rail fastener 2. The machine 18 is mounted vertically downward, and as shown in FIG.
Straight line L is set to be parallel to the connecting boom 12 connecting the shaft center O _B of the bolt緊解machine 18.

Further, substrates 19 are attached to both ends of the connecting boom 12 integral with the left and right working carts 8, respectively.
9, a ball screw 20 extending vertically is rotatably provided by a driving device 21 such as a motor.
, A nut 23 integral with a transfer guide rail 22 extending in parallel with the connecting boom 12 is screwed into the work guide by driving a traverse frame 24 to the transfer guide rail 22 by a chain 26 by a driving device 25 such as a motor. 8 so as to be movable in a direction perpendicular to the moving direction of the
4 is provided with a hand device 27 having a finger portion 27b that can be opened and closed by supply and discharge of a working fluid to and from the main body portion 27a, and a hand device 27 that can grip the rail fastener 2 and that can move up and down and is perpendicular to the moving direction of the work cart 8 The gripping / conveying device 28 for the rail fastening 2 that can be moved to a position is constituted.

A sensor 29 capable of detecting the position of the head of the bolt 2a of the rail fastening 2 is mounted on each of the front left and right positions of the traveling carriage 5, and the sensor 29 is provided on the traveling carriage 5 from the sensor 29. The drive signal is output to the left and right work carts 8 so that the bolt disengaging machine 18 is disposed immediately above the head of the bolt 2a based on the detection signal of the cylinder 17, the cylinder 17, the bolt disengaging machine 18, and the gripping / conveying device 28. Is provided with a control device (not shown) for outputting a drive signal.

In the case of this embodiment, as shown in FIG. 4, an outer ring portion 32 having a substantially annular shape and a spherical concave seat 31 formed on the inner peripheral surface thereof is formed on the elevating table 16 so that its axis O _B extends in the vertical direction. The spherical concave seat 3 is provided integrally with the outer ring portion 32 so as to extend.
Inner ring 3 having a spherical convex seat 33 formed on the outer peripheral surface for engagement with the inner ring 3
4 is provided so as to be slidable, and the main body portion 18a of the bolt disengaging machine 18 is inserted and fixed in the inner ring 34, and the supporting device 35 is formed. As shown in FIGS. from 16 to the bracket 36 and extending downwardly, a substantially annular alignment frame 37 is fixed to its axis coincides with the axis O _B, in the circumferential direction required a plurality of locations (figure該調centroid frame 37 3), an aligning member 41 provided with a roller 40 urged radially axially by a spring 38 and abutting against the outer peripheral surface of a shaft portion 39 of the socket wrench portion 18b at the tip is disposed. An elastic centering device 42 capable of holding the posture of the distorting machine 18 substantially vertically is provided.

At the lower end of the socket wrench 18b,
The spring 43 biases the socket wrench 18b so as to protrude toward the lower end by a required amount, and the socket wrench 1
A skirt member 46 having a mortar-shaped guide surface 45 for guiding the fitting hole 44 of 8b to the head of the bolt 2a is externally slidably fitted in the axial direction, and the socket wrench portion 18b
A shaft member 39 having a built-in spring 47 for urging the shaft portion 39 in the extending direction is interposed at the base end side of the shaft portion 39 so that the shaft portion 39 can be contracted. A stopper 49 for limiting the contraction to a required amount is provided, and the bracket 36 detects the relative position of the stopper 49 with respect to the joint member 48 to detect whether the shaft portion 39 has reached the contraction stroke end position. A position detector 50 such as a photoelectric switch is provided.
It is determined that the fitting hole 44 is fitted to the head of the bolt 2a by detecting the end position of the contraction stroke of No. 9.

Next, the operation of the above embodiment will be described.

As shown in FIGS. 1 and 2, the traveling vehicle 5 is always moving forward on the rail 3 at a certain speed, and the bolts 2 of the rail fastening 2 to be subsequently removed by the left and right sensors 29.
The position of the head 2a is detected, and based on the detection signal from each sensor 29, the control device (not shown)
The head position is stored, and the left and right work carts 8 and cylinder 1
7. A drive signal is output to the bolt disengaging device 18 and the gripping / conveying device 28, respectively.

The left and right working carts 8 are respectively provided with guide rails 6.
The time when the bolt distorting machine 18 is arranged at the head position of the bolt 2a by the traveling of the traveling vehicle 5 based on the data of the head position of the bolt 2a previously stored by the control device from the state of waiting at the upper reference position O. Then, the bolt disengaging machine 18
Starts moving at a constant speed in the direction opposite to the traveling direction of the traveling vehicle 5 so that the traveling vehicle 5 is relatively stopped at the head position of the bolt 2a.

In this state, the rotation of the ball screw 20 by the driving device 21 causes the hand device 27 to move the finger unit 2 together with the transport guide rail 22 of the gripping and transporting device 28.
7b, the rail fastener 2 is gripped by the hand device 27, and the bolt 17 is lowered by the extension operation of the cylinder 17, and the skirt member 46 is pressed against the upper surface of the rail fastener 2. Spring 4
3 against the urging force of the socket 3 and the socket wrench 1
The fitting hole 44 at the lower end of the bolt 8b is fitted into the head of the bolt 2a. In this state, the bolt cutter 18 further descends, and the shaft 39 of the socket wrench 18b contracts to reach the contraction stroke end position. The position detector 50 detects that the fitting hole 44 has been fitted to the head of the bolt 2a, and the rotation of the ball screw 20 causes the gripping / conveying device 28 to contract the cylinder 17 while rotating the socket wrench 18b. By the operation, the bolt disengaging device 18 is connected to the socket wrench portion 18b.
Ascends at a speed synchronized with the rotation speed of.

At this time, the cylinder 17 does not actively pull up the bolt disengaging machine 18 but only applies a force enough to cancel the weight of the bolt disengaging machine 18. 2a is lifted by using the force that is loosened and lifted, and the cylinder 1
7 is contracted.

The bolt disengaging device 18 and the gripping / conveying device 2
8, the bolt 2a is loosened and the rail fastening 2
Is removed from the sleeper 1 and the bolt disengaging device 18 and the gripping / conveying device 28 rise to a required position above the rail 3.
The lifting of the gripping / conveying device 28 is stopped, the rotation of the socket wrench 18b is stopped, and the positively contracting operation of the cylinder 17 causes the bolt cutter 18 to further rise by a required amount, and the socket wrench 18b 2a Depart from the head.

When the socket wrench 18b is detached from the head of the bolt 2a, the traversing frame 24 is moved inside or outside the rail 3 along the transport frame 22 by the drive of the chain 26 by the driving device 25, and stops at a required position.
The finger portion 27b of the hand device 27 opens to drop the rail fastening 2 and the bolt 2a.

Thereafter, the transverse frame 24 returns to the original position at the center of the transport frame 22, and the left and right work carts 8 return to the reference positions on the guide rails 6,
Hereinafter, the same operation as described above is repeatedly performed.

On the other hand, when the rail fastener 2 is to be reattached after the rail 3 is replaced, an operator temporarily fixes the rail fastener 2 to the sleeper 1 with the bolt 2a, and the temporarily fastened rail fastener 2 The two bolts 2a are sequentially tightened by the bolt dissector 18.

The above-described operation shows a case where no error occurs in the positioning of the bolt disengaging device 18 with respect to the position of the bolt 2a head. In general, there is an error in positioning.

However, in the present embodiment, even when an error in the positioning of the bolt disengaging device 18 with respect to the head position of the bolt 2a occurs during the removal and installation of the rail fastener 2, the bolt disengaging device is used. When the lowering member 18 is lowered, the fitting surface 44 of the socket wrench portion 18b is guided to the head position of the bolt 2a by the guide surface 45 of the skirt member 46, and is securely fitted. The bolt disengaging device 18 is configured to resist the urging force of the spring 38 of the aligning member 41 in the elastic aligning device 42 which intends to maintain the posture of the bolt disengaging device 18 substantially vertically. Spherical convex seat 3 with respect to spherical concave seat 31 of support device 35
Due to the sliding of 3, the lens is tilted in a required direction with respect to the vertical line by an amount corresponding to the error, and the positioning error is absorbed.

On the other hand, when the socket wrench part 18b is detached from the head of the bolt 2a, the restoring force of the spring 38 of the aligning member 41 in the elastic aligning device 42 causes the posture of the bolt disengaging device 18 to be substantially reduced again. It is returned to the vertical state.

When the track is curved, the sleeper 1 and the rail 3 are inclined to prevent the train from derailing due to centrifugal force. Bolt disintegrator 1 by centering device 42
The positional relationship between 8 and the traveling carriage 5 can be maintained in the same manner as in the case of the horizontal rail 3.

For this reason, the work of removing and attaching the rail fastener 2 of the inclined rail 3 is performed in the same manner as in the case of the horizontal rail 3.

In this manner, the rail fastening 2 which has conventionally required a great deal of labor and time can be mechanically and efficiently removed and mounted, and the bolt 2a
Even if there is an error in the positioning of the bolt disengaging device 18 with respect to the head position, the fitting hole 44 can be securely fitted to the head of the bolt 2a, and the loosening and tightening of the bolt 2a can be performed smoothly. It can be carried out.

[0034] The rail fastening metal disengaging device of the present invention comprises:
It is needless to say that the present invention is not limited to the above-described embodiment, and that various changes can be made without departing from the scope of the present invention.

[0035]

As described above, according to the rail fastener releasing device of the present invention, even if there is an error in the positioning of the bolt releasing device with respect to the position of the bolt head, the bolt can be removed in accordance with the error. It is possible to achieve an excellent effect that the loosening and the tightening can be performed smoothly, and the labor and time for removing and attaching the rail fastener can be reduced.

[Brief description of the drawings]

FIG. 1 is a side view of one embodiment of the present invention.

FIG. 2 is a view taken in the direction of arrows II-II in FIG.

FIG. 3 is a sectional view taken along line III-III of FIG. 1;

FIG. 4 is an enlarged sectional view of a portion IV in FIG. 3;

FIG. 5 is a sectional view taken along line VV of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sleeper 2 Rail fastening 2a Bolt 3 Rail 5 Traveling trolley 8 Work trolley 18 Bolt disengaging machine 18b Socket wrench part 28 Gripping and conveying device 35 Supporting device 39 Shaft 42 Elastic alignment device 43 Spring (elastic member) 44 Fitting hole 45 Guide surface 46 Skirt member 47 Spring (elastic member) 50 Position detector

Continued on the front page (72) Inventor Michihiro Matsuzaki 51-26, Tobe Honcho, Nishi-ku, Yokohama-shi, Kanagawa Prefecture (72) Inventor Toshio Kojima 3-1-15-1 Toyosu, Koto-ku, Tokyo Ishikawa Shima-Harima Heavy Industries Co., Ltd. Inside the center (72) Inventor Naoto Watanabe 3-1-1-15 Toyosu, Koto-ku, Tokyo Inside Ishikawa Shima-Harima Heavy Industries Co., Ltd.Higashi2 Technical Center (72) Inventor Kengo Kobayashi 3-1-1-15 Toyosu, Koto-ku, Tokyo Ishikawa (72) Inventor Mitsuaki Hayashi 3-1-1-15 Toyosu, Koto-ku, Tokyo Ishikawa Shima-Harima Heavy Industries Co., Ltd. Toji Technical Center (56) References JP-A-4-198501 (JP, A) JP-A-4-198502 (JP, A) JP-A-5-71205 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) E01B 29/28

Claims (1)

(57) [Claims] 1. A traveling vehicle capable of traveling on a rail fixed to a sleeper by rail fastening hardware, and left and right working vehicles mounted on the traveling vehicle so as to be movable in a direction parallel to a traveling direction of the traveling vehicle. A bolt disengaging device having a socket wrench portion provided on the work vehicle so as to be able to ascend and descend to fasten and loosen the bolts of the rail fasteners, and a direction perpendicular to the moving direction of the work vehicle that can be moved up and down the work vehicle. And a gripping / conveying device capable of dropping a rail fastening fitting capable of gripping and holding the rail fastening fitting to a required position. An elastic alignment device capable of holding the position of the bolt disengaging device substantially vertically is provided while being supported by a supporting device that allows tilting with respect to a line, and an elastic member is provided at a lower end of the socket wrench portion. Therefore, a skirt member urged to project toward the lower end of the socket wrench and having a mortar-shaped guide surface for guiding the fitting hole of the socket wrench to the bolt head is slidably fitted in the axial direction. A shaft detector of the socket wrench is formed so as to be contractable via an elastic member that urges the shaft in the extension direction, and a position detector for detecting a contraction stroke end position of the shaft of the socket wrench is provided. Rail fastening metal disassembly device.