JP2011021421A - Hydraulic track lifting machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To carry out track lifting work continuously without depending on manual force in view of a large labor load and inefficiency in conventional track lifting work wherein tamping is performed after lifting a track by a manual rail jack. <P>SOLUTION: This hydraulic track lifting machine which is an apparatus including a connecting post so as to be movable towed by a quadruple-head tie tamper, includes four wheels movable on a track, four rail clamps used as fulcrums for lifting rails and sleepers, and two cylinders and jack bases for directly lifting the rails and sleepers, as means for recovering a track level lowered from a predetermined value. The cylinders are supplied with oil pressure from a soil removing plate of the quadruple-head tie tamper. A soil removing plate lever of the quadruple-head tie tamper is operated. The jack bases of the cylinders are thereby lowered to lift the track and to perform tamping work. This work is repeated to carry out track lifting work continuously. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to lifting a track from a roadbed by operating a hydraulic cylinder with a four-head tie tamper in order to recover a position where the track has been lowered.

  In the conventional track lifting work, a manual rail jack is inserted between the roadbed ballast and the rail, and the track is lifted up manually to lift the heavy track. For example, see Patent Document 1. After that, they were squeezed and hardened with a four-headed tamper. Due to human power, the physical strength was remarkably reduced, especially under hot weather in the summer, which was heavy and harsh. Therefore, the work efficiency was also lowered.

Japanese Patent Laid-Open No. 8-109602

  In the past, the track was lifted from the roadbed using a manual rail jack. The work had to be repeated at intervals of 5 meters, and his physical strength, energy and efficiency also declined. The purpose is to lift the track easily without using human power directly on the heavy track, and it is possible to lift the track by operating the cylinder installed in the hydraulic track lifter from the four-head tie tamper. Solved.

The present invention is a hydraulic track lifting machine for lifting a track after lifting it to a target value in a track maintenance work of a railway track maintenance work, and a four-head tie tamper for rolling the track. It is composed of a steel connecting strut that can be connected and pulled, and a T-shaped square steel plate fixed to the connecting strut by welding, and a base body that is electrically insulated at the center, along the track In order to run on a track with a pair of wheel mounts arranged at both ends of the mount body, to lift the track between the two wheels in total, a pair of four wheels in total, and a pair of the two wheels Two hydraulic cylinders are arranged along the track, two in total, and two wheel cylinders are arranged symmetrically on each wheel base around the hydraulic cylinder along the track to grab the head of the rail and lift the track. It is composed of a total of four clamps and is a four-head tie. Hydraulic track lifting machine lowers the cylinder and has a feature that it is possible to lift the track with a weight in operation from bumpers.
The hydraulic cylinder includes a rod piston and a jack base that lifts a track by contacting a roadbed between sleepers at a piston tip, and the jack base has a circular shape with a diameter of 200 mm shorter than a distance between sleepers. 1, Hydraulic track lifter.
2. The hydraulic track lifting machine according to claim 1, wherein the clamps are each provided with an anti-disengagement pin so that the clamp is not removed from the rail in order to grasp and lift the head of the rail.

  In the conventional track hoisting work, in order to recover the lowered track level, the track was lifted using a manual rail jack, and then tightened with a four-head tie tamper. The work had to be repeated at 5m intervals, which caused a reduction in labor load and efficiency. The introduction of this hydraulic track lifter helped improve the working environment and efficiency.

Side view after connecting hydraulic track lifter and four-head tie tamper Top view of hydraulic track lifter Front view of hydraulic track lifter The figure which clamps the rail head and lifts the track

  After lifting the track to the target value in the track maintenance work of railway track maintenance work, it is compacted, but it is a hydraulic track lifting machine 1 for lifting the track, and the four-head tie tamper 28 that compacts the track The steel connecting struts 23 are connected so that they can be pulled, a T-shaped square steel plate is fixed to the connecting struts 23 by welding, and an electrical insulation 22 is provided. In order to lift the track between the two wheels, a pair of wheel mounts 20 arranged at both ends, and two wheel mounts that can run on the track, respectively, a total of four wheels 16, 17, 18, 19 1 hydraulic cylinder, 2 cylinders 10 and 11 in total, and to grasp the head of the rail and lift the track, 2 on the front and back of the wheel along the track, 4 clamps 2 in total A device consisting of 3, 4, 5 that lifts the trajectory by operation from the four-head tie tamper 28 It referred to as hydraulic track lifting machine.

The embodiment will be described with reference to FIGS. 1, 2, 3, and 4.
Fig. 1 is a side view after connecting a hydraulic track lifter and a four-head tie tamper. Fig. 2 is a plan view of the hydraulic track lifter. Fig. 3 is a front view of the hydraulic track lifter. Fig. 4 is a track with the rail head clamped. An example is shown below with the figure raised.
In order to carry out the work on the track, the hydraulic track lifting machine 1 is placed on the rail using a crane. After that, the four-headed tamper 28 is placed. The reverse is also possible. Finely adjust the hydraulic jack bases 14 and 15 so that they can be set between the sleepers 39. In order to connect and tow the four-head tie tamper 28 and the hydraulic track lifting machine 1, the connecting pin installed on the lower part of the earth-moving plate 36 of the four-head tie tamper and the connecting pillar 23 of the hydraulic track lifting machine are connecting pins. Fix with 24. FIG. 1 is a side view of a hydraulic track lifter connected to a four-head tie tamper. A hydraulic joint 37 of the earthing plate 36 of the four-head tie tamper 28 is connected to a hydraulic unit 25 in which the cock levers 26 and 27 are closed. First, in order to lift the track on the inner track side, the two clamps 2 and 3 on the front and rear of the wheel are brought into close contact with the rail head 34. Insert and fix the prevention pins 6 and 7 so that the clamps 2 and 3 do not come off the rail head 34. Next, the cock lever 26 of the hydraulic unit 25 is opened, and the earth removal plate operation lever 38 of the four-head tie tamper 28 is operated. By operating the earth removal plate operating lever 38, the jack base 14 directly connected to the cylinder 10 is lowered, and the inner rail side rail 32 is lifted together with the sleepers 39. Fig. 4 is a view of the rail head clamped and the track raised, measured with an auto level measuring device that measures the height of the track, and when the target level is reached, the four-head tie tamper is kept so that the track does not descend by its own weight. Stop the earthing plate control lever, stop the hydraulic pressure, and keep the track level constant. After that, the trajectory is compacted with a four-headed tamper 28. When the caulking and compacting within the range of 5 m around the inner track side is finished, the jack base 14 is raised by operating the earthing plate operation lever 38 of the four-head tie tamper 28. Thereafter, the clamp detachment prevention pins 6 and 7 are removed, and the clamps 2 and 3 are released from the rail head 34.

Next, in order to perform the work of lifting the track on the outer track side, the two clamps 4 and 5 on the front and rear of the wheel are brought into close contact with the rail head 34 to hold the rail head. Insert and fix the prevention pins 8 and 9 so that the clamps 4 and 5 do not come off the rail head 34. The cock lever 27 of the hydraulic unit 25 is opened, the earthing plate operation lever 38 of the four-head tie tamper 28 is operated, and the jacking base 15 is lowered. The trajectory is lifted by descending. See Figure 4. As a result of measurement with a gauge level measuring device that measures the level difference between the gauges, when the outer gauge side reaches the target level value, the earthing plate operation lever is stopped and the hydraulic pressure is stopped to keep the track raised to the target level.
After that, the 4 head tie tamper 28 is used to crush the outer track side track in the 5m range. When the squeezing is completed, the jack base 15 is raised by operating the earthing plate operation lever 38 of the four-head tie tamper 28. Remove the clamp prevention pins 8 and 9, remove the clamps 4 and 5 from the rail head, and release the rail from the clamp.

  When you finish the compaction of the place where you are working, move the engine 5m further and continue the compaction work. If you drive the engine-driven four-head tie tamper 28 to the target position, the connected hydraulic track The lifting machine is also pulled at the same time. Therefore, in the above procedure, lift the inner track side of the 5m range that has been moved, stop the hydraulic pressure when the target level is reached, tighten with the four-head tie tamper 28, and lift the cylinder 10 when the compaction is complete. Let Next, the outer track side track is lifted up and the compaction work is sequentially repeated.

  In this way, the track lifting operation can be performed over several kilometers while moving in the 5m range. In addition, there are quite a few hot metal trains on the railroads of steelworks, etc., but this hydraulic track lifter 1 can be connected to a four-head tie tamper 28 and operated to operate a hot metal train that passes straight on the same track. Because of the above reasons, it has the feature that the work can be temporarily interrupted and the hydraulic track lifter and the four-head tie tamper can be integrated to escape by bypassing the point in order to allow preferential passage for the above reasons.

1 ... Hydraulic track lifter 21 ... Wheel body
2 ... Clamp a 22 ... Insulation
3 ... Clamp b 23 ... Connecting post
4 ・ ・ ・ Clamp c 24 ・ ・ ・ Connecting pin
5 ... Clamp d 25 ... Hydraulic unit
6 ... Prevention pin a 26 ... Cock lever a
7 ... Prevent prevention pin b 27 ... Cock lever b
8 ... Anti-detachment pin c 28 ... Four-head tie tamper
9 ・ ・ ・ Detach prevention pin d 29 ・ ・ ・ Tie tamper side hydraulic hose
10 ... Cylinder a 30 ... Connection side hydraulic hose
11 ... Cylinder b 31 ... Lifting machine side hydraulic hose
12 ... Rod piston a 32 ... Inner rail side rail
13 ... Rod piston b 33 ... Outer rail side rail
14 ... Jack base a 34 ... Rail head
15 ... Jack base b 35 ... Tie tamper wheel
16 ... wheel a 36 ... soil removal board
17 ... Wheel b 37 ... Exhaust plate hydraulic joint
18 ... Wheel c 38 ... Earthing plate control lever
19 ... Wheel d 39 ... Sleeper
20 ... Wheel mount 40 ... Valley

Claims (3)

This is a hydraulic track lifter that lifts the track after lifting it to the target value in the track maintenance work of the railway track maintenance work, and is connected to a four-head tie tamper that compacts the track. It is made of steel connecting struts that can be pulled and pulled, and T-shaped square steel plates fixed to the connecting struts by welding, and the main body is electrically insulated at the center, and the main body along the track. A pair of wheel mounts arranged at both ends of the wheel, and two wheels on each of the wheel mounts to run on the track, a total of four wheels, and hydraulic pressure to lift the track between the pair of two wheels Two cylinders are arranged along the track, two in total. In order to grab the head of the rail and lift the track, two cylinders are placed symmetrically on each wheel base around the hydraulic cylinder along the track. Consists of a total of four clamps, four-headed titan Hydraulic track lifting machine lowers the cylinder and has a feature that it is possible to lift the track with a weight in operation from over.
The hydraulic cylinder includes a rod piston and a jack base that lifts a track by contacting a roadbed between sleepers at a piston tip, and the jack base has a circular shape with a diameter of 200 mm shorter than a distance between sleepers. 1, Hydraulic track lifter.
2. The hydraulic track lifting machine according to claim 1, wherein each of the clamps is attached with an anti-disengagement pin so that the clamp is not removed from the rail in order to grasp and lift the head of the rail.

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