Supporting device special for railway rail welding machine

Abstract

The supporting device special for the railway rail welding machine comprises a machine body support, the machine body support comprises a first longitudinal supporting rod and a second longitudinal supporting rod which are arranged on the left side and the right side, and a first crossing rod located on the front side and a second crossing rod located on the rear side are connected between the first longitudinal supporting rod and the second longitudinal supporting rod; the first longitudinal supporting rod and the second longitudinal supporting rod are each provided with a machine body support. The first crossing rod and the second crossing rod are each provided with an upward-protruding structure crossing the track. The track and / or the track bed support the machine body support through the supporting assembly. The method has the beneficial effects that a GPW-1200 type air pressure rail welding machine can be adopted to implement welding operation on a steel rail line on a ramp section with the height being 130 mm or above and the height being 25% o or below of a railway line, thermit welding is comprehensively canceled, and the method has great advantages in the aspects of improving the rail replacement overhaul construction quality and ensuring the travel safety of passengers.

Description

Technical Field

[0001] This application belongs to the technical field of rail welding operations, and specifically relates to a special support device for a railway rail welding machine, which is applied to the independent welding operation after the GPW-1200 type pneumatic rail welding machine is separated from the vehicle body on the railway line. Background Art

[0002] Since the self-weight of the GPW-1200 type pneumatic rail welding machine exceeds 3 tons and it cannot be moved manually, the current mature application solution is to use the rail welding machine in cooperation with a crane, and the whole is carried on a self-propelled vehicle or a road flat car and other transportation vehicles, and is transported to the operation site by the vehicle and then accurately positioned for operation by the crane. On the one hand, using a crane to hoist the rail welding machine for operation is mostly applicable to flat ground or small slopes.

[0003] On the other hand, padding the rail to be welded by 150 mm is a necessary condition to meet the operation requirements of the GPW-1200 type pneumatic rail welding machine. If the on-line welding operation site is on a curved section with a superelevation of more than 130 mm, after padding the rail, the gap between the rail bottom and the rail bearing groove will reach more than 280 mm. Under such track conditions, the lateral tilt angle of the vehicle body is relatively large, and the vehicle runs on the slope, there is a risk of tipping and derailing. If the on-line welding operation site also has a large slope of 25‰, the vehicle body will also have a longitudinal tilt, and the vehicle runs on the slope in the lateral and longitudinal tilt states, and the risk of tipping and derailing increases significantly.

[0004] Therefore, when implementing on-line welding operations in sections with large superelevation and large slopes in the prior art, the risk of the vehicle running on the slope is large. To avoid vehicle tipping and getting out of danger, thermite welding is mostly used for on-line welding operations in such special sections. Utility Model Content

[0005] The purpose of this application is to provide a special support device for a railway rail welding machine, which realizes independent welding after the rail welding machine is separated from the vehicle body, enables the rail welding machine to operate normally after being separated from the crane, and avoids the risk of vehicle tipping and derailing during the vehicle running on the slope in the area where the rail is padded.

[0006] The purpose of this application is achieved by the following technical solutions:

[0007] A special support device for a railway rail welding machine includes a machine body support. The machine body support includes a first longitudinal support rod and a second longitudinal support rod arranged on the left and right sides. A first cross bar is connected between the first longitudinal support rod and the second longitudinal support rod at the front side, and a second cross bar is connected at the rear side. Machine body supports are provided on both the first longitudinal support rod and the second longitudinal support rod. Convex structures spanning across the track are formed on both the first cross bar and the second cross bar; the track and / or the roadbed support the machine body support through a support assembly.

[0008] Further, the first cross bar and the second cross bar connecting between the first longitudinal rod and the second longitudinal rod are both connected by welding.

[0009] Further, both the first longitudinal rod and the second longitudinal rod are straight rod structures, and both the first cross bar and the second cross bar are in a U-shaped structure.

[0010] Further, stiffening plates are provided at the corners of the first cross bar and the second cross bar.

[0011] Further, the supporting surface of the body support is a bent surface, and the bent surface includes an inner supporting plane and an outer supporting inclined plane.

[0012] Further, limiting ears are provided on the front and rear sides of the first longitudinal rod and / or the second longitudinal rod. The limiting ears are connected to the bracket end of the limiting cable, and the other end of the limiting cable is the body end.

[0013] Further, the supporting assembly includes a jacking rod. One end of the jacking rod is connected with a bracket chuck, and the other end of the jacking rod is connected with a track chuck.

[0014] Further, U-shaped clamping grooves are provided on both the bracket chuck and the track chuck.

[0015] Further, the supporting assembly includes a tie rod. One end of the tie rod is connected with a roadbed buckle, and the other end of the tie rod is provided with a locking member.

[0016] Further, the roadbed buckle is an arc-shaped buckle plate, and a locking nut is provided on the threaded portion at the other end of the tie rod.

[0017] This application has the following technical features:

[0018] 1. The special supporting device has sufficient stability to ensure that the rail welding machine is placed stably and reliably after being separated from the crane, and the rail welding machine will not shake, displace or tilt when manually pushed.

[0019] 2. When welding operations are carried out on the line in sections with a super-elevation of more than 130 mm and a slope of less than 25‰, the supporting device has the function of preventing lateral and longitudinal crosstalk, ensuring that there is no displacement phenomenon during the operation of the rail welding machine.

[0020] The beneficial effects of this application: It can realize on-line rail welding operations using a GPW-1200 type pneumatic rail welding machine in sections of railway lines with a super-elevation of more than 130 mm and a slope of less than 25‰, completely cancel thermite welding, and has great advantages in improving the quality of rail replacement and overhaul construction and ensuring the safety of passenger travel.

[0021] The main solution of the present application and its various further alternative solutions can be freely combined to form multiple solutions, all of which are solutions that can be adopted and claimed in the present application; and in the present application, (each non-conflicting alternative) alternatives can be freely combined with each other and with other alternatives. Those skilled in the art can understand that there are various combinations according to the prior art and common general knowledge after understanding this solution, all of which are the technical solutions to be protected in the present application, and will not be enumerated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three-dimensional structure diagram (top support type) of the present application.

[0023] Figure 2 is a side view of the construction operation structure of the present application (top support type).

[0024] Figure 3 is a three-dimensional structure diagram of the construction operation structure of the present application (pull-back type).

[0025] In the figure: 1 - body support, 2 - support assembly, 3 - rail welding machine, 4 - track, 5 - roadbed; 101 - first longitudinal support rod, 102 - second transverse support rod, 103 - first cross bar, 104 - second cross bar, 105 - body support seat, 106 - stiffening plate, 107 - limiting ear, 108 - limiting cable; 201 - top support rod, 202 - support chuck, 203 - track chuck, 204 - pull-back rod, 205 - roadbed fastener, 206 - locking nut. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The present application will be further described below in conjunction with specific embodiments and the accompanying drawings.

[0027] Refer to Figure 1 、 Figure 2 and Figure 3 As shown, a special support device for a railway rail welding machine includes a body support 1 and a support assembly 2.

[0028] The body support 1 is placed on the roadbed 5, and the roadbed 5 provides support for the body support 1. The body support 1 supports the rail welding machine 3, ensuring the stable placement of the rail welding machine 3 while also providing space for the operation of the rail welding machine 3.

[0029] The track 4 and / or the roadbed 5 support the body support 1 through the support assembly 2, that is, the support assembly 2 also provides a lateral support force for the body support 1, ensuring that the body support 1 can still maintain stability and does not undergo relative sliding under lateral and / or longitudinal slopes, avoiding affecting the operation stability.

[0030] The body support 1 includes a first longitudinal support rod 101, a second longitudinal support rod 102, a first cross bar 103, a second cross bar 104, a body support seat 105, a stiffening plate 106, a limiting ear 107, and a limiting cable 108.

[0031] The first longitudinal support rod 101 and the second longitudinal support rod 102 are respectively arranged on the left and right sides, and the first cross rod 103 and the second cross rod 104 are respectively arranged on the front and back sides. The first cross rod 103 and the second cross rod 104 are welded between the first longitudinal support rod 101 and the second longitudinal support rod 102, thereby forming the main frame of the bracket. Among them, the two longitudinal support rods are used for the support transition between the rail welding machine 3 and the roadbed 5, and the two cross rods are used to form an integral body and realize the crossing of the track 4.

[0032] Both the first longitudinal support rod 101 and the second longitudinal support rod 102 are straight rod structures, preferably steel square tubes, which can be stably placed on the roadbed 5 and are also convenient for the placement of the machine body support 105. The first cross rod 103 and the second cross rod 104 are both formed with convex structures that cross over the track 4. Preferably, the first cross rod 103 and the second cross rod 104 are both in a U-shaped structure welded by steel square tubes, ensuring that the bracket can straddle the track 4 and realizing the placement of the bracket. Stiffening plates 106 are welded at the corners of the first cross rod 103 and the second cross rod 104 for strengthening the structure.

[0033] Machine body supports 105 are welded on both the first longitudinal support rod 101 and the second longitudinal support rod 102. Two machine body supports 105 are welded on each of the two longitudinal support rods, thereby forming a rectangular four-point support placement, which can ensure the stable placement of the rail welding machine 3. The support surface of the machine body support 105 is a bent surface, and the bent surface includes an inner support plane and an outer support inclined plane. Thus, the support plane lifts the rail welding machine 3, and the support inclined plane limits the lateral movement of the rail welding machine 3 to prevent the rail welding machine 3 from slipping laterally relative to the machine body support 105.

[0034] Limit ears 107 located on the front and back sides are screwed on the first longitudinal support rod 101 and / or the second longitudinal support rod 102. The limit ears 107 are connected to the bracket end of the limit cable 108, and the other end of the limit cable 108 is the machine body end. After the rail welding machine 3 is placed on the bracket, the machine body end of the limit cable 108 is connected to the rail welding machine 3. By using the flexible connection of the limit cable 108, the rail welding machine 3 can move longitudinally within a certain range. When the rail welding machine 3 moves to the extreme position, the limit cable 108 pulls the rail welding machine 3 to limit its further movement.

[0035] The support assembly 2 is of the top support type and includes a top support rod 201, a bracket chuck 202, and a track chuck 203. One end of the top support rod 201 is welded to the bracket chuck 202. The bracket chuck 202 is provided with a U-shaped slot, enabling the bracket chuck 202 to be clamped on the first longitudinal support rod 101 or the second longitudinal support rod 102. The other end of the top support rod 201 is welded to the track chuck 203. The track chuck 203 is provided with a U-shaped slot, enabling the track chuck 203 to be clamped on the track 4 adjacent to the longitudinal support rod. Then, the track 4 located under the slope of the bracket is used as the top support, and the stability of the machine body bracket 1 is maintained through the top support rod 201, preventing it from sliding down during operation.

[0036] Or the support assembly 2 is of the anti-pull type and includes an anti-pull rod 204, a roadbed buckle 205, and a locking member. One end of the anti-pull rod 204 is connected to the roadbed buckle 205. The roadbed buckle 205 is an arc-shaped buckle plate, which is locked on the anti-pull rod 204 by a nut. The roadbed buckle 205 is reversely buckled on the upper corner of the side of the roadbed 5 and keeps in contact with the roadbed 5. The other end of the anti-pull rod 204 is provided with a locking member. Preferably, a locking nut 206 is provided on the threaded portion at the other end of the anti-pull rod 204. The threaded portion passes through the longitudinal support rod and is fixed to the longitudinal support rod by the locking nut 206. Then, the side of the roadbed 5 located on the slope is used as the anti-pull support, and the stability of the machine body bracket 1 is maintained through the anti-pull rod 204, preventing it from sliding down during operation.

[0037] The top support type or the anti-pull type of the support assembly 2 can be selected according to the actual situation, or both forms can be adopted simultaneously.

[0038] One aspect of this application is to solve the stability problem of the rail welding machine on the support device.

[0039] 1. Accurately measure the external dimensions of the GPW-1200 type rail welding machine and analyze it in combination with the self-weight of the rail welding machine. It is determined to use the four-point support method to support the rail welding machine, which can ensure that the rail welding machine is placed stably and reliably after being separated from the crane, and there is no shaking or tilting when the rail welding machine is pushed manually.

[0040] 2. Since the bottom plate of the outer shell of the rail welding machine and the side wall plate are welded at 90°, in order to increase the contact area between the support base and the machine body, the support point of the rail welding machine is selected here.

[0041] 3. The support device is designed with an L-shaped support base with a length of 200 mm and a width of 50 mm. At the same time, the contact surface between the support base and the rail welding machine adopts an anti-slip design to prevent the rail welding machine from tilting.

[0042] 4. The support device adopts a frame design, which is convenient for installation and disassembly and has good overall stability.

[0043] Another aspect of this application is to design the anti-lateral and longitudinal crosstalk functions of the support device.

[0044] 1. Although the friction coefficient between the metal and the concrete ballastless track is large, considering the large transverse and longitudinal inclination angles of the track bed in this section, there is a risk of displacement of the support device during the reciprocating movement of the moving frame during the operation of the rail welding machine. By referring to the operation method of using a balance bar in a multi-functional grinding device to improve the stability of the device, two horizontal safety levers are added to the support device, so that the support device forms a rigid connection with the rail and the track bed, preventing the lateral tilting of the support device.

[0045] 2. At the same time, a safety cable chain is used to connect the support device to the concrete sleeper of the rail at the welding operation end to prevent the longitudinal movement of the rail welding machine.

[0046] The basic example of the present application and its various further selected examples can be freely combined to form multiple embodiments, all of which are embodiments that can be adopted and claimed by the present application. In the solution of the present application, each selected example can be arbitrarily combined with any basic example and selected example.

[0047] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A special support device for a railway rail welding machine, comprising a machine body support (1), characterized in that: The machine body support (1) comprises a first longitudinal support rod (101) and a second longitudinal support rod (102) arranged on the left and right sides; a first cross-bar (103) located at the front side and a second cross-bar (104) located at the rear side are connected between the first longitudinal support rod (101) and the second longitudinal support rod (102); a machine body support (105) is provided on the first longitudinal support rod (101) and the second longitudinal support rod (102); and an upper convex structure that crosses the track (4) is formed on the first cross-bar (103) and the second cross-bar (104); the track (4) and / or the track bed (5) support the machine body support (1) through the support assembly (2).

2. The special support device for railway rail welding machine according to claim 1, characterized in that: The first cross-bar (103) and the second cross-bar (104) connected between the first longitudinal support bar (101) and the second longitudinal support bar (102) are both welded.

3. The special support device for railway rail welding machine according to claim 1 or 2, characterized in that: The first longitudinal support rod (101) and the second longitudinal support rod (102) are both straight rod structures, and the first cross-bar (103) and the second cross-bar (104) are both U-shaped structures.

4. The special support device for a railway rail welding machine according to claim 3, characterized in that: Stiffening plates (106) are provided at the corners of the first cross-bar (103) and the second cross-bar (104).

5. The special support device for railway rail welding machine according to claim 1, characterized in that: The support surface of the machine body support (105) is a bent surface, and the bent surface comprises an inner support plane and an outer support inclined surface.

6. The special support device for railway rail welding machine according to claim 1, characterized in that: The first longitudinal support rod (101) and / or the second longitudinal support rod (102) are provided with limiting ears (107) located at the front and rear sides, the limiting ears (107) are connected to the bracket end of the limiting cable (108), and the other end of the limiting cable (108) is the body end.

7. The special support device for a railway rail welding machine according to claim 1, characterized in that: The support assembly (2) comprises a top support rod (201), one end of the top support rod (201) is connected to a bracket clamp (202), and the other end of the top support rod (201) is connected to a track clamp (203).

8. The special support device for railway rail welding machine according to claim 7, characterized in that: The bracket clamp (202) and the rail clamp (203) are both provided with a U-shaped clamping groove.

9. The special support device for a railway rail welding machine according to claim 1, characterized in that: The support assembly (2) comprises a pull rod (204), one end of the pull rod (204) is connected to a track bed buckle (205), and the other end of the pull rod (204) is provided with a locking component.

10. The special support device for a railway rail welding machine according to claim 9, characterized in that: The track bed buckle head (205) is an arc-shaped buckle plate, and a locking nut (206) is provided on the threaded portion at the other end of the counter-pull rod (204).

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