JPS6221903A - Rail joint falling correction machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a portable straightening machine for use in straightening rail joints at a rail installation site.

Conventional technology and its problems The rail joint straightening machine that has been used in the past has a basic structure that uses the reaction force of the cylinder extension action to lift the rail, but it lifts the rail head on both sides of the joint downward. It is a complicated mechanism that uses a pair of hydraulic rams to push the joint and a hydraulic ram to push up the joint, and the rail lifting mechanism uses a hook to catch the joint, so when removing the joint, remove the sleeper, scrape out the ballast, and place the hook at the bottom of the rail. The disadvantages include that it requires work to dig deeply into the lower surface and lift it up, and that the pressure-loading electric bed is destroyed by scraping out the ballast, and that it takes a great deal of effort to restore it.

Purpose of the Invention The present invention does not employ a mechanism for simply hooking and lifting a rail with a hook as described above, and therefore does not employ a mechanism for hooking and lifting a hook deeply into the bottom of the rail in order to lift the entire rail. An improved rail seam straightening machine is provided.

The present invention applies strong lateral pressure to the abdomen of the rail using a pair of chucks, clamps the abdomen, and hooks the abdomen under the rail flange.
To provide a seam drop straightening machine capable of lifting a rail.

The present invention provides a straightening machine that does not require pre-processing or post-processing such as scraping out ballast, removing sleepers, restoring the track bed, etc., such as a straightening machine that hooks and lifts the bottom of the rail with a hook.

The present invention also provides a straightening machine that can simultaneously correct rail joint drop and joint plate deformation by gripping the rail abdomen together with the joint plate and without removing the joint plate.

In addition, the present invention has a sturdy and simple structure that allows elements such as a rail lifting device, a lifting cylinder, and a side car to be easily disassembled and transported, and is easy to move after assembly. Provide straightening machines.

Further, the present invention provides a straightening machine that can respond to changes in track width, can prevent overturning at each track width, and can handle all types of joint plates and rail joints by replacing chucks.

Other features of the present invention will be understood from the description of the embodiments below.

Structure of the Invention The present invention is constructed to achieve the above-mentioned object, and includes providing a trochanter on the rail hoisting machine base so that it can travel on one rail, and extending to the side of the machine base. A sidecar is installed at one end of the extended connecting rail so that it can run alongside the other rail, and then a lifting cylinder is installed upright on the machine base, and a lifting device is mounted on the cylinder ram that faces upward. the left and right lifting arms of the lifting device are placed along both sides of the lifting machine base, and the tip of the arm is equipped with a chuck for gripping the abdomen of the rail,
By closing the left and right lifting arms with the opening/closing mechanism, the chuck can grip the rail abdomen and lift and correct the rail.If necessary, the chuck can be moved back and forth or replaced, and the sidecar can be moved, etc. to lift and correct various rails. The structure is such that it can be used to correct seams.

Embodiments of the Invention Examples of the present invention will be described below with reference to FIGS. 1 to 6.

Reference numeral 1 designates a rail lifting machine stand. Trochanters 2.3 are provided at the front and rear parts of the rail lifting machine stand 1, and the rail lifting machine stand 1 is supported by one of the left and right rails RIJ- so that it can run.

Further, a connecting bar 5 extending across the left and right rails R1 and R2 is extended from the left and right side plates 4 of the machine base 1, and a side wheel 6 having one or more rollers 7 is attached to the end of the connecting bar 5. trochanter 7
is supported on the other rail R2, and can run together with the lifting machine platform l using the connecting bar 5 as a medium. At the same time, lifting machine platform 1
prevent it from falling sideways. The trochanter 2, 3 or 31 is made of an insulating material to electrically insulate between the rails R1 and R2.

The above-mentioned connecting bars 5 are arranged in two rows in front and behind the lifting machine base 1, and are removable so that the machine base 1 is inserted into the connecting bar insertion tube 32 installed horizontally between the side plates 4 of the machine base 1. Insert it. An insertion pin or a tightening screw 8 is set in the connecting bar insertion tube 32 to fix the connecting bar 5 and the lifting machine base l so that they cannot slide. Similarly, insert the ends of the connecting bars 5 into the connecting bar insertion cylinders 9 provided at the front and rear parts of the side wheel 6, and connect the connecting bars 5 and the sides with the insertion pins or tightening screws 10 set in the insertion cylinders 9. The car 6 is fixed so that it cannot slide.

In this way, the lifting machine stand 1 and the sidecar 6 are set at a spacing that matches the rail spacing. Also, loosen the insertion bin or tightening screws 8, 10, remove the connecting bar 5 from the lifting machine base 1, and remove the side wheel 6 from the same 5 to enable disassembly. A plurality of grip bars 29 are provided on the hoisting machine base 1 so as to protrude from the left and right side plates 4 to the left and right sides of the hoisting machine base 1. Convenient for loading and unloading and moving to other locations. Without this grip bar 29, /
F-5 may also be used as a grip bar during movement and lifting.

Further, the above-mentioned hanging machine base 1 is equipped with a hook and a cylinder 15. The lifting cylinder 15 is disposed between the front trochanter 2 and the rear trochanter 3, is housed between the left and right side plates 4, and has its bottom supported on the base plate 18 of the lifting machine base 1, Depending on the implementation, the cylinder ram 16 is removably installed using the port 19, and the cylinder ram 16 is placed upright on the plywood 18''.

A pair of left and right lifting arms 13 are provided at both ends of the other lifting head 12.
It constitutes a lifting equipment gllll which is pivotally supported.

Reference numeral 14 denotes a shaft for pivotally supporting the left and right lifting arms 13, and both arms rotate relative to each other about the shaft 14 as a fulcrum.

The lifting device 11 is mounted across the lifting machine stand l, and the lifting head 12 is removably supported on the ram 16 of the lifting cylinder 15. A handle 30 is provided on the side surface of the lifting arm 13 to facilitate attachment and detachment. A receiving hole 17 is provided in the center of the lifting head 12, and a ram 16 is inserted into the receiving hole 17 for positioning. Also, the lifting head 12 is centered around the ram 16.
The lifting arm 13 is rotatable, and if necessary, the arm opening/closing mechanism described later is removed, and the lifting arm 13 is rotated by 90 degrees.
Load it on top so that it is parallel to the rail and transport it. Incidentally, the ram 16 and the helad 12 may be connected with a port.

As described above, the lifting device 11 is removably loaded onto the ram 16, and the left and right lifting arms 13 are attached to the left and right side plates 4 of the lifting machine base l.
hanging along the outside of the Each of the two lifting arms 13 is provided with a chuck 20 at its inner end for gripping the rail abdomen. The chuck 201 is held by a U-shaped chuck holder 21 provided on the inner surface of the end of the near arm, with its gripping surface protruding toward the abdomen of the rail, and a mounting/adjustment port 22 passing through the lifting arm from the back is screwed. Then, rotate the port 22 to move the chuck 20 to the abdomen of the rail.
ff1 is allowed to retreat. Also, the chuck 20 can be replaced by unscrewing the port 22 and the chuck 20. chuck 20
The gripping portion is shaped to fit into the outer concave surface of the joint plate 23 of the rail abdomen, and grips the rail joint plate 23, and at the same time grips the rail abdomen via the joint plate 23. If the joint plate 23 has a special shape, the chuck 20 should be replaced. This does not prevent the chuck 20 from being selected and directly gripping the rail abdomen.

A lifting arm opening/closing mechanism is provided between the left and right lifting arms 13 for gripping by the chuck 20. The opening/closing mechanism is a mechanism in which the left and right lifting arms 13 are connected by a link mechanism, and the link mechanism is moved around the waist by a cylinder from a pivot point, or is extended and converted into an arm opening/closing operation.

FIGS. 2 and 6 show one suitable example.

As shown in the figure, an arm 24 is provided integrally projecting from one side of the left and right lifting arms 13. A link 25 is pivotally connected to each of the arms 24, and both links 25 are connected by a link 26. 11ii!
The pivot portions of 24 and link 25 are removably connected by a drop shaft 28. A similar link mechanism is formed on the other side of the lifting arm 13. Therefore, a state is formed in which both sides of the lifting arm 13 are linked by a pair of link mechanisms.

A cylinder 27 connects both link mechanisms. That is, one end of the cylinder 27 is connected to the link 26 of one link mechanism, and the ram at the other end is connected to the link 26 of the other link mechanism.

When the ram of the cylinder 27 is thus extended, the arms 24 are pulled inward by the links 26, 25, and the left and right lifting arms 13 are rotated in the closing direction. As a result, the chuck 20 is hooked onto the abdominal joint plate 23 of the rail R1 and grips it from both sides.

Further, when the ram of the cylinder 27 is retracted, the link 25 is projected laterally, and the left and right lifting arms 13 are rotated in the opening direction. As a result, the chuck 20 releases its grip on the rail abdomen.

While the rail abdominal joint plate 23 is held by the chunk 20, the ram 16 of the lifting cylinder 15 is extended. As a result, the lifting head 12 is pushed up and the left and right lifting arms 13 are pulled up. Along with this, the eyelet drop part of the rail R1 held by the chuck 20 is strongly lifted together with the joint plate 23, and the correction of the rail joint drop and the correction of the joint plate 23 are achieved at the same time. Similarly, it is also possible to correct joint drop in rail butt welds. In addition, during the rail joint drop correction work, a metal may be interposed between the trochanters 2 and 3 and the rail to prevent the surface of the rail head from collapsing.

Effects of the Invention The present invention opens and closes an opening/closing mechanism that connects a pair of lifting arms and a rain-rate upper arm, grips the rail abdomen with a chuck, and lifts the rail, making it possible to correct a dropped joint.
The joint can be removed without the need for moving or removing the joint sleeper, scraping out or restoring the pressure ballast, and without causing any softening of the trackbed due to the removal of the ballast.The joint can be removed without the need for pre-treatment or post-treatment while the rail is still in place. Be able to initiate and carry out corrections.

In addition, the present invention grips the rail abdomen through the joint plate and connects the joint to the rail.
8V4 normal work can be performed, and seam plate correction can be performed at the same time as seam drop correction.

In addition, the side wheels effectively prevent the lifting machine platform from falling over, and the movement along the connecting bar can be easily adjusted and the spacing can be set, and it is also possible to correct rail joints with different track widths, and by replacing the chuck, joint plates of different shapes can be easily adjusted. can also be dealt with.

In addition, the connecting bars and - can be easily removed from the machine base, and the side car can be easily removed from the same bar for disassembly or on-site assembly. Similarly, the lifting device can be easily removed from the rail lifting machine base by grasping the handle, and can be assembled by simply placing it on the ram of the lifting cylinder, making it easy to move from one site to another and to prepare for work. And it can be done quickly.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a rail joint drop straightening machine showing an embodiment of the present invention, Fig. 2 is a perspective view of a lifting device of the same straightening machine, and Fig. 3 is a perspective view of the lifting machine stand side of the same straightening machine. Side view, Figure 4 is the same plan view,
FIG. 5 is a cross-sectional side view, and FIG. 6 is a plan view of the lifting arm opening/closing mechanism of the straightening machine. 1...Rail lifting machine base, 2, 3...Front/rear trochanter 5
5... Connection bar, 6... Side wheel, 7... Cotrochanter, 1
1... Rail lifting device, 12... Lifting head, 13
... Lifting arm, 15... Lifting cylinder, 16.
... Same ram, 17 ... Receiving hole, 19 ... Lifting cylinder mounting bolt, 20 ... Chuck, 22 ... Chuck mounting and advance/retreat operation bolt, 23 ... Joint plate, 27 ...
- Lifting arm opening/closing cylinder.

Claims (5)

[Claims] (1) A rail lifting machine platform is provided with a trochanter to support it so that it can run on one of the left and right rails, and a connecting bar extending across the left and right rails from the side of the platform is attached to the end of the connecting bar. A side car is provided, the side car supports the other rail by a trochanter so that it can run alongside the other rail, the rail lifting machine base is provided with a lifting cylinder, and the cylinder ram is provided so as to stand upright;
On the other hand, a lifting device is constituted by a pair of left and right lifting arms rotatably supported at both ends of the lifting head, and the lifting head of the lifting device is attached and supported to the ram of the upright lifting cylinder. At the same time, the left and right lifting arms are arranged along both the left and right sides of the lifting machine base, and chucks for gripping the rail abdomen are provided at the ends of each arm, and an arm opening/closing mechanism is provided between the left and right lifting arms, so that the lifting A rail joint drop straightening machine characterized in that an upper arm is movably connected to a position where the abdomen of the rail is gripped by a chuck and a position where the grip is released. (2) The invention as set forth in claim 1, wherein the lifting device is loaded and supported on a ram of a lifting cylinder, and is detachable from the machine base. (3) The invention as set forth in claim 2, wherein the ram of the lifting cylinder has its tip positioned in a lifting head of a lifting device. (4) The invention as set forth in claim 1, wherein the chuck at the tip of the lifting arm is removable from the arm and can be moved forward and backward. (5) The side car is provided so as to be movable along the connecting bar, and has a configuration in which the distance to the rail lifting machine base can be set and it can be attached to and detached from the connecting bar. invention.