JPH10278785A - Trolley carrier for wire maintenance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To safely and smoothly perform a crane work for wire maintenance in an inclined part of a curved path on a railway and exhibit a prescribed crane capacity. SOLUTION: A base plate 5 pivotally supported by a support shaft 6 is provided on a trolley underframe 2 so as to support a hydraulic pump 25 and a crane 26, a pair of left/right outriggers 31, 32 are fixed to the base plate, and a tilt hydraulic cylinder 10 and a support means 17 with a lock are provided on one side and the other side of the base plate respectively. The base plate 5 is horizontally supported by the hydraulic cylinder 10 and the left/right outriggers 31, 32.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a track maintenance iron trolley equipped with a crane.

[0002]

2. Description of the Related Art A conventional crane of a trolley with a crane is directly fixed on the frame of the trolley, so the curved portion of the track is inclined due to the cant, and the intended hanging ability cannot be exhibited. Was. Recently, the cant has become larger with the speeding up of trains, for example, the maximum length of a Shinkansen is 200 mm. In such an inclined state, not only the crane performance is greatly restricted but also the crane turning operation becomes dangerous.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a crane that can safely and smoothly perform crane operations on curved roads, and that can maximize the crane's ability without increasing the weight excessively. Toro carts are provided.

[0004]

According to the present invention, there is provided a trolley truck in which a base plate on which a crane is fixed is pivotally supported on a trolley frame so as to be tiltable in the rail width direction, and one side of the base plate is released during use. On the other side, a hydraulic cylinder for tilting the base plate is pin-connected to the toro base frame and pivotally mounted on the other side. In addition to the crane on the base plate, a pair of left and right outriggers is provided. , An electric motor-directed hydraulic pump, and an operation unit. The device according to the invention is used on steeply curved roads, and the outrigger grounding point is usually on ballast. Therefore, it is preferable to attach a shackle-connected foot plate to the lower end of the leg end. Further, a limit switch is provided on the outrigger for safety. When the outrigger is pulled out, a brake is applied to the wheels of the toro truck.

[0005]

According to the present invention, the base plate of the crane is supported on the ground by a pair of outriggers, and one
It is horizontally supported by a tilting hydraulic cylinder. Therefore, a relatively small outrigger is sufficient. Since the crane operation of the toro cart according to the present invention is always performed with the base plate in a horizontal state, the crane turning operation can be performed smoothly and safely. In addition, since rotating equipment such as a hydraulic pump is also operated in a horizontal state, failures are reduced. Further, since the operation panel is horizontal, the operation can be performed in the same manner as on a flat ground. Further, in a non-working state such as moving, both sides are restrained and supported by the tilting hydraulic cylinder and the base plate supporting means, so that it is stable.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the drawings, reference numeral 1 denotes a bogie-type iron trolley, 2 denotes an underframe, 3 denotes wheels, and 4 denotes a brake. 5
Is a crane base plate, and both ends of a center support shaft 6 erected on the back surface are fitted and supported on support stands 7, 8 fixed on the underframe in the center longitudinal direction. Thus, the base plate 5 can be tilted in the rail width direction about the support shaft 6. The tilting range is ± 8 °, which is sufficient for the maximum cant. 1
Reference numeral 0 denotes a hydraulic cylinder for tilting provided on one side of the base plate. A trunnion pin 12 protruding from the cylinder body is supported by a bracket 13. The tip of the cylinder rod 11 is connected to a receiving member 15 via a connecting member 14 with a pin 16. Reference numeral 17 denotes a stay bar which is provided on the lower edge of the other side of the base plate and serves as a base plate supporting means. The lower end 18 of the stay bar is pivotally supported by an angle fitting 19 fixed on the base frame so as to be able to fall down, and the upper end 21 is provided. Are provided so as to support the lower edge of the base plate and not to be easily removed by the lock pin 22. The base support means may be provided upside down, or a plurality of support means may be arranged side by side as shown in FIG. 7 to improve stability. In the case of juxtaposition, they are linked and linked by a link or a rod 23 or the like. Reference numeral 24 denotes a handle for operation.
During the operation of the inclined portion, the support means 17 is laid down on the underframe as shown by the chain line in FIG. 25 is a hydraulic pump with an electric motor, 26 is a crane, 27 is a mounting base, 28 is a turning part, 29
Is a mast and 30 is a boom. 31 and 32 are a pair of left and right outriggers fixed on the base plate. 33 and 34 are arms, 35 and 36 are legs, and 37 and 38 are shuffle-connected foot plates. A limit switch (not shown) is provided on each of the outrigger arms 33 and 34, and the wheel brakes 4 are operated by pulling out the arms. Numeral 40 denotes operating parts of the hydraulic cylinder and the crane, which are provided symmetrically on both sides of the base plate. 41 is a diesel generator that supplies current to the electric system.

[0007]

[Operation method] The toro truck with a crane of the present invention constructed as described above is pulled by a motor car and stopped at a predetermined working position on a curved road, and then the outrigger arms 33 and 34 are pulled out. The limit switch signal activates the electromagnetic brakes of the wheels to restrain the truck. In this state, the lock pin 22 of the stay supporting plate is pulled out, and the hydraulic cylinder 1
0, the base plate 5 is once slightly tilted as shown in FIG. 8 (c), and the stay bar 17 is set in a free state to fall on the base frame 2. Thereafter, the base plate is set in a horizontal state by operating the hydraulic cylinder, and then the legs 35 and 36 of the outrigger are extended to fix and support the base plate. Therefore, the base plate 5 is horizontally supported on the inclined base frame 2 by the hydraulic cylinder and supported on the track by a pair of outriggers, and is supported as if it were a three-point support. For this reason, the hydraulic cylinder is preferably provided at a position away from the outrigger. In this state, a predetermined crane operation is performed. However, since both the operation unit 40 and the hydraulic pump 41 are mounted on the base plate, the operation can be performed easily and naturally, and there is no danger of uneven wear. After the work is completed, only the legs of the outrigger are shortened, and the hydraulic cylinder is operated to make the base plate 5 parallel to the base frame 2 so that the stay bar 17 stands upright under the base plate, and then the lock pin 22 is inserted. The base plate 5 and the frame are locked. After that, when the outrigger is stored, the electromagnetic brake of the wheels is released and the vehicle can run. Note that the safety confirmation lamp and other interlocking mechanisms are omitted.

[Brief description of the drawings]

FIG. 1 is a side view of a toro truck equipped with a crane.

FIG. 2 is a plan view of the same.

FIG. 3 is a front view of the same.

FIG. 4 is a plan view of a crane base plate.

FIG. 5 is a front view of a crane base plate.

FIG. 6 is a side view of a crane base plate.

FIG. 7 is another side view of the crane base plate.

FIG. 8 is an explanatory view of tilting of a crane base plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Toro cart 2 Frame 4 Brake 5 Crane base plate 6 Support shaft 7, 8 Support base 10 Tilting hydraulic cylinder 12 Trunnion pin 17 Stay bar 22 Lock pin 25 Hydraulic pump 26 Crane 31, 32 Outrigger 35, 36 Leg 40 Crane operation Department

[Procedure amendment]

[Submission date] April 17, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction contents]

[0007]

[Operation method] The toro truck with a crane of the present invention constructed as described above is pulled by a motor car and stopped at a predetermined working position on a curved road, and then the outrigger arms 33 and 34 are pulled out. The limit switch signal activates the electromagnetic brakes of the wheels to restrain the truck. In this state, the lock pin 22 of the stay supporting plate is pulled out, and the hydraulic cylinder 1
0, the base plate 5 is once slightly tilted as shown in FIG. 8 (c), and the stay bar 17 is set in a free state to fall on the base frame 2. Thereafter, the base plate is set in a horizontal state by operating the hydraulic cylinder, and then the legs 35 and 36 of the outrigger are extended to fix and support the base plate. Therefore, the base plate 5 is horizontally supported on the inclined base frame 2 by the hydraulic cylinder and supported on the track by a pair of outriggers, and is supported as if it were a three-point support. For this reason, the hydraulic cylinder is preferably provided at a position away from the outrigger. In this state, a predetermined crane operation is performed. However, since both the operation unit 40 and the hydraulic pump 25 are mounted on the base plate, the operation can be performed easily and naturally, and there is no danger of uneven wear. After the work is completed, only the legs of the outrigger are shortened, and the hydraulic cylinder is operated to make the base plate 5 parallel to the base frame 2 so that the stay bar 17 stands upright under the base plate, and then the lock pin 22 is inserted. The base plate 5 and the frame are locked. After that, when the outrigger is stored, the electromagnetic brake of the wheels is released and the vehicle can run. Note that the safety confirmation lamp and other interlocking mechanisms are omitted.

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] Fig. 1

[Correction method] Change

[Correction contents]

FIG.

Claims (1)

[Claims] 1. A base plate on which a crane is fixed is pivotally supported on a toro base frame so as to be tiltable in the rail width direction, and one side of the base plate is provided with base plate support means which is released during use. A hydraulic cylinder for tilting the base plate is pin-connected and pivotally connected to the toro frame on the side, and in addition to the crane, a pair of outriggers on the left and right, a hydraulic pump directly connected to the electric motor, A toro truck for track maintenance that is equipped with.