JPH064103U - Rail fastening bracket automatic attachment / detachment device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a rail fastener automatic attachment / detachment device capable of reliably ensuring positional accuracy with respect to rail side bolts and rail fasteners. [Structure] When the work carriage 40 is placed on one of the rails 3 on which work is to be carried out and the one brim wheel 34 at the tip of the outrigger 33 is placed on the other rail 3, one work collar wheel 31 on the side of the work carriage 40 is placed. , 32 are pressed against the inside of the one rail 3 by the reaction of the one brim wheel 34 on the tip side of the outrigger 33 being pressed against the inside of the other rail 3 by the urging force of the pressing spring 38. In this state, the control device 27 mounted on the outrigger 33 controls the traveling of the work carriage 40 and the operation of the bolt tensioner 12 and the gripping and conveying device 17 based on the detection signal 26 from the position sensor 25. When the attachment / detachment work of the fastener 1 is performed, the positional accuracy with respect to the bolt 10 on the rail 3 side and the rail fastener 1 is reliably ensured.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rail fastener automatic attachment / detachment device used for rail replacement work on railroad tracks.

[0002]

[Prior art]

 Conventionally, when replacing a rail on a railroad track, when removing an old rail, an operator loosens the bolts of the rail fastening metal fittings that secure the rail to the sleepers one by one using an impact wrench to loosen the bolts. The rail fasteners are removed from the sleepers, and when laying a new rail, the worker reattaches the rail fasteners to the sleepers by temporarily fixing the bolts, and the impact wrench is used to remove one of the bolts. I was tightening each.

However, if the worker manually removes or installs the rail fasteners as described above, it takes a lot of labor and time and is very inefficient.

Therefore, recently, a rail fastening metal fitting attaching / detaching device capable of saving labor and shortening the time for attaching / detaching the rail fastening fitting has been considered.

FIGS. 4 to 6 show an example of the rail fastener automatic attachment / detachment device. One of the pair of rails 3, 3 fixed to the sleeper 2 by the rail fastener 1 drives the traveling motor 4 The work trolley 5 traveling by is mounted via front and rear wheels 6 and 7 provided with flanges on both sides in the axial direction.

An arm-shaped outrigger 9 equipped with a collarless wheel 8 mounted on the other rail 3 at the tip is attached to a required position of the work carriage 5 so as to project toward the other rail 3. The work trolley 5 is supported by the outriggers 9 and runs upright on one rail 3 so as not to fall.

Further, the work carriage 5 is provided with a pair of bolt tensioners 12 rotatably provided with an impact wrench portion 11 that can be fitted to the heads of the bolts 10 of the rail fastener 1, and a guide member 13. It is guided in the up-and-down direction by and is supported by a lifting motor 14 so as to be lifted and lowered by a wire 16 which is wound up and unwound through a winch drum 15.

Further, at a position near the rear of the bolt tensioner 12 in the work carriage 5, a gripping and conveying device 17 capable of gripping the rail fastener 1 and capable of dropping the gripped rail fastener 1 to a required position. However, it is provided on the work carriage 5 so as to be able to move up and down and move parallel to the sleepers 2.

That is, the gripping / conveying device 17 drives the lifting motor 22 along a vertical guide frame 21 that vertically extends a support frame 20 that supports a pair of gripping hands 19 that can be opened and closed by driving the opening / closing motor 18. And the upper and lower guide frames 21 are movable along the left and right guide frames 23 extending in the left-right direction (the direction orthogonal to the drawing in FIG. 4) by the traverse motor 24. Has become.

Further, on one side in the traveling direction of the work carriage 5, a detection signal 26 from a position sensor 25 attached to a lower position in front of and behind the bolt tensioner 12 to detect the head position of the bolt 10 is detected. Based on the above, the traveling of the work carriage 5 is stopped so that the bolt tensioner 12 is positioned directly above the bolt 10, and the bolt tensioner 12 and the gripping and conveying device 17 are operated to attach / detach the rail fastener 1. A control device 27 that can start work is provided.

Further, an engine generator 28 (power supply device) for supplying power to the above-described various electric devices (traveling motor 4, bolt tensioner 12, gripping and conveying device 17, etc.) is provided at the central portion in the longitudinal direction of the outrigger 9. ) Is installed.

When the rail fastening metal fitting 1 is detached from the sleeper 2 by the rail fastening metal fitting attaching / detaching device, the work trolley 5 is placed on one rail 3 to be replaced and the outrigger 9 is mounted. When the wheel 8 at the tip is placed on the other rail 3 and the work carriage 5 is moved forward in a predetermined traveling direction, the position sensor 25 on the front side in the traveling direction removes the bolt 10 of the rail fastening metal fitting 1 to be removed next. When the head position is detected and the bolt tensioning device 12 is located immediately above the bolt 10, the control device 27 causes the work carriage 5 to travel, that is, the travel motor 4.

Next, the lifting and lowering motors 14 and 22 are driven to lower the bolt tensioner 12 and the gripping and conveying device 17, and the gripping hand 19 of the gripping and conveying device 17 grips the rail fastening member 1 and the bolts. The impact wrench portion 11 of the tensioner 12 is fitted to the head of the bolt 10, and the impact wrench portion 11 is rotated to loosen the bolt 10.

At this time, the support frame 20 is raised corresponding to the bolt 10 that is loosened and raised, the wire 16 is wound up, the gripping hand 19 is raised while the rail fastening metal fitting 1 is gripped, and the bolt tensioning machine is also lifted. 12 is lifted while the impact wrench 11 is fitted to the head of the bolt 10.

When the bolt 10 of the rail fastener 1 is loosened by the bolt tensioner 12 and the gripping and conveying device 17 and the rail fastener 1 is removed from the sleeper 2, the rotation of the impact launch part 11 is stopped, and the bolt is stopped. The tensioner 12 is further raised by a required amount to disengage the impact trench portion 11 from the head of the bolt 10, and then the traverse motor 24 reciprocally moves the upper and lower guide frames 21 in parallel with the sleeper 2 and the rail 3 to a desired distance. The gripping hands 19 are opened at the left and right positions with the rails in between, and the rail fastener 1 is dropped.

On the other hand, when the rail fastening metal fitting 1 is reattached after the rail 3 is replaced, the worker temporarily attaches the bolt 10 to the rail fastening metal fitting 1 on the sleeper 2 and, after that, It suffices to run the work carriage 5 and sequentially tighten the temporarily fixed bolts 10 by the bolt tensioner 12.

[0017]

[Problems to be solved by the device]

 However, in the above-mentioned conventional rail fastener automatic attachment / detachment device, the wheels 6 and 7 on the side of the work carriage 5 are provided with flanges on both sides in the axial direction, and the wheels 8 at the tips of the outriggers 9 are not provided with flanges. Some play must be secured between the collars of the wheels 6 and 7 on the side of the work carriage 5 and both sides of the rail 3 in consideration of a curved portion, etc. This play allows the bolt 10 and the rail on the rail 3 side to be secured. There was a possibility that the positional accuracy with respect to the fastener 1 would be lost.

Further, as shown in FIG. 7, since the long rail 3 ′ used for the Shinkansen line or the like has a large amount of thermal expansion and contraction due to the difference in temperature, the rail joint portion 29 of the long rail 3 ′ is not heated. The structure is such that the ends of the long rails 3'can escape outward at both ends of the joint rail 30 during extension, and rims are provided on both sides in the axial direction of the wheels 6 and 7 on the side of the work carriage 5. If there is, there is a problem that such a rail joint portion 29 cannot be passed.

Further, in the rail fastener automatic attachment / detachment device, since the control device 27 is equipped on one side of the traveling direction of the work carriage 5, as shown in FIG. Each of them has an L-shape that extends, and there is a problem that a large storage space is required for storage in a passageway by the track, or dismantling work such as removal of the outrigger 9 is required.

The present invention has been made in view of the above-mentioned circumstances, and it is possible to surely secure the positional accuracy with respect to the rail side bolt and the rail tightening metal fitting, and moreover, to pass through the rail joint portion or the like of the long rail. It is also an object of the present invention to provide a rail fastener automatic attachment / detachment device that can be stored in a relatively small storage space without being disassembled when it is stored in a passageway beside a railroad track. .

[0021]

[Means for Solving the Problems]

 The present invention relates to a work trolley equipped with two front and rear single rim wheels having a rim that is mounted on one rail of a pair of juxtaposed rails fixed to a sleeper by a rail fastener and is locked inside the rail. A bolt tensioner with an impact wrench that can tighten and loosen the rail fasteners is provided so that it can be moved up and down, and a gripping and conveying device that can hold the rail fasteners and drop them to the required position can be moved up and down. In addition, it is provided so as to be movable in a direction parallel to the sleepers, and further, the work carriage is provided with an outrigger projecting toward the other rail, and the tip of the outrigger is placed on the other rail and locked inside the rail. It is possible to detect the position of the bolt head by providing a one-sided collar wheel having a flange to be moved in the rail width direction and a pressing spring for urging the one-sided collar wheel toward the outside of the rail. A control device for controlling the traveling of the work vehicle and the operation of the bolt tensioning device and the gripping and conveying device based on the detection signal from the position sensor attached to the work vehicle is mounted on the outrigger. The present invention relates to an automatic attachment / detachment device for rail fasteners.

[0022]

[Action]

 Therefore, when attaching or detaching the rail fasteners, if the work truck is placed on one of the rails and the wheels of the outrigger tips are placed on the other rail, the work truck will be The one brim wheel is pressed to the inner side of the one rail by the reaction of the one brim wheel on the outrigger tip end side being pressed to the inner side of the other rail by the urging force of the pressing spring.

In such a state, the control device mounted on the outrigger controls the traveling of the work vehicle and the operation of the bolt tensioning device and the gripping and conveying device based on the detection signal from the position sensor to control the rail fastener. When the attachment / detachment work is performed, the positional accuracy with respect to the rail side bolts and the rail fastening metal fittings is reliably ensured.

Further, since both the work trolley side and the outrigger side are formed as single collar wheels that are locked to the inside of each rail, it is possible to pass the rail joint part of the long rail which could not be passed conventionally. Is possible.

Further, since the control device is mounted on the outrigger, the size of the device in the front-rear direction is small, and the device is relatively small as a whole without disassembling work when it is stored in a passage beside a track or the like. It becomes possible to store in the accommodation space.

[0026]

【Example】

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

1 to 3 show an embodiment of the rail fastener automatic attaching / detaching device of the present invention, in which the same reference numerals as those in FIGS. 4 to 6 represent the same parts.

As shown in the figure, the work carriage 40 traveling by the drive of the traveling motor 39 is mounted on one rail 3 of the pair of rails 3, 3 fixed to the sleeper 2 by the rail fastening member 1. 3 is mounted via two front and rear single collar wheels 31 and 32 each having a collar locked inside.

The work carriage 40 is provided with a bolt tensioner 12 and a gripping / conveying device 17, which are configured in the same manner as the rail fastener automatic attachment / detachment device of FIGS. 4 to 6 described above.

Further, a rectangular frame-shaped outrigger 33 that projects toward the other rail 3 is provided at a required position of the work carriage 40, and the lower surface of the tip of the outrigger 33 has an inner side of the other rail 3. A single collar wheel 34 having a collar that is locked to is mounted movably in the width direction of the rail 3 via a wheel support 36 slidably engaged with a guide member 35 on the lower surface of the tip of the outrigger 33. At the inner side of the guide member 35 on the lower surface of the tip of the outrigger 33, one end is connected to a stopper 37 attached to the lower surface of the tip of the outrigger 33 and the other end is connected to the wheel support 36. The connected pressing spring 38 is arranged so as to bias the one collar wheel 34 toward the outside of the rail 3.

A position sensor 25 for detecting the head position of the bolt 10 is provided below the front and rear of the bolt tensioner 12 of the work carriage 40, and a detection signal from the position sensor 25 is provided. The operation of the work carriage 40 and the operations of the bolt tensioner 12 and the gripping and conveying device 17 are controlled based on the reference numeral 26, but the work trolley 40 is mounted on the outrigger 33 at a position closer to the other rail 3 side.

The engine generator 28 (power supply device) is mounted at the center position on the outrigger 33.

Thus, when the work for attaching and detaching the rail fastening member 1 is performed, the work carriage 40 is placed on the rail 3 on which the work is performed, and the one brim wheel 34 at the tip of the outrigger 33 is attached to the other. When mounted on the rail 3, the one collar wheels 31, 32 on the side of the work carriage 40 press the one collar wheel 34 on the tip side of the outrigger 33 on the inside of the other rail 3 by the urging force of the pressing spring 38. It is pressed against the inner side of the one rail 3 by the reaction caused by being pushed.

In this state, the control device 27 mounted on the outrigger 33 controls the traveling of the work carriage 40 and the operation of the bolt tensioner 12 and the gripping and conveying device 17 based on the detection signal 26 from the position sensor 25. When the rail fastener 1 is attached and detached, the positional accuracy with respect to the bolt 10 on the rail 3 side and the rail fastener 1 is reliably ensured.

Further, since both the work carriage 40 side and the outrigger 33 side are the single collar wheels 31, 32, and 34 that are locked inside the rails 3 and 3, the long wheels that cannot be conventionally passed. It is possible to pass through the rail joint portion 29 (see FIG. 7) of the rail 3 ′.

Further, since the control device 27 is mounted on the outrigger 33, the size of the device in the front-rear direction is reduced, and the device remains as an integrated unit without being disassembled when it is stored in a passage beside the track. It can be stored in a relatively small storage space.

Therefore, according to the above-described embodiment, the urging force of the pressing spring 38 pushes the one brim wheel 34 on the tip end side of the outrigger 33 against the inside of the other rail 3 to cause a reaction to the one brim on the work carriage 40 side. Since the wheels 31 and 32 are surely pressed to the inside of the one rail 3, the positional accuracy of the rail 3 with respect to the bolt 10 and the rail fastening 1 at the time of attachment / detachment work of the rail fastening 1 should be ensured. Further, since both the work carriage 40 side and the outrigger 33 side are the single collar wheels 31, 32, 34 that are locked inside the rails 3, 3, respectively, the rail joint portion 29 of the long rail 3 '. Since the control device 27 is mounted on the outrigger 33, the disassembling work is not performed when the device is stored in a passage beside the track. It can be stored as a unit in a relatively small storage space.

It should be noted that the rail fastener automatic attachment / detachment device of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention.

[0039]

[Effect of device]

 As described above, according to the rail fastener automatic attaching / detaching device of the present invention, various excellent effects as described below can be obtained.

(I) The one brim wheel on the work trolley side is surely pressed to the inner side of one rail by the reaction caused by the one brim wheel on the outrigger tip side being pressed to the inner side of the other rail by the urging force of the pressing spring. Therefore, it is possible to reliably ensure the positional accuracy with respect to the rail side bolts and the rail fasteners when the rail fasteners are attached and detached.

(II) Since both the work trolley side and the outrigger side are single collar wheels that are locked inside the respective rails, it is possible to easily pass through the rail joint portion or the like of the long rail.

(III) Since the control device is mounted on the outrigger, the size of the device in the front-rear direction can be reduced, and the device can be integrated without being disassembled when it is stored in a passage beside the track. Can be stored in a relatively small storage space.

[Brief description of drawings]

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

FIG. 2 is a view taken along the line II-II in FIG.

3 is a view in the direction of arrow III-III in FIG.

FIG. 4 is a side view showing a conventional example.

5 is a view in the direction of VV in FIG.

6 is a view in the direction of arrow VI-VI in FIG.

FIG. 7 is a plan view of a rail joint portion of a long rail.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rail fastening metal fitting 2 Rail sleeper 3 Rail 10 Bolt 11 Impact wrench part 12 Bolt tensioner 17 Grasping and conveying device 25 Position sensor 26 Detection signal 27 Control device 31 One flange wheel 32 One flange wheel 33 Outrigger 34 One flange wheel 38 Push spring 40 Work trolley

Claims (1)

[Scope of utility model registration request] 1. A work trolley having two front and rear one-rim flange wheels, which are mounted on one rail of a pair of juxtaposed rails fixed to a sleeper by a rail fastening metal fitting and have a collar locked inside the rails. A bolt tensioner having an impact wrench portion that can tighten and loosen the rail fastening metal fittings is provided so as to be able to move up and down, and a gripping and conveying device that is capable of gripping the rail fastening metal fittings and dropping it to a required position can be moved up and down. And provided so as to be movable in a direction parallel to the sleepers, and further provided with an outrigger projecting toward the other rail on the work carriage,
A one brim wheel having a brim that is mounted on the other rail and is locked to the inside of the rail is provided at the tip of the outrigger so as to be movable in the rail width direction, and the one brim wheel is biased toward the outer side of the rail. A pressing spring is provided to control the traveling of the work carriage and the operation of the bolt tensioner and the gripping and conveying device based on a detection signal from a position sensor attached to the work carriage so as to detect the head position of the bolt. An automatic attachment / detachment device for rail fastening metal fittings, characterized in that a control device is mounted on the outrigger.