Steel rail jacking and supporting tool special for subway monolithic track bed

Abstract

The utility model belongs to the technical field of metro tracks, and particularly discloses a special steel rail jacking and supporting tool for a metro monolithic track bed, which comprises a lower base plate, an upper supporting base plate and a jacking assembly, and the lower base plate is fixed on the track bed; the upper supporting base plate is located above the lower base plate. The jacking assembly comprises a jacking bolt, a first threaded hole is formed in the upper supporting base plate, the jacking bolt is in threaded connection in the first threaded hole, and the bottom of the jacking bolt is rotationally connected with the lower base plate; a limiting assembly is arranged on the upper supporting base plate and comprises a steel rail limiting block, a fastener limiting block and a T-shaped bolt limiting block. Installation can be completed only by one operator, the functions of replacing sleeper supporting steel rail bearing, supporting and jacking can be achieved, various parameters for treating loosening and separating diseases of the ballast bed sleeper are met, after loosening and separating treatment of the ballast bed sleeper is completed, the disassembled tool can be repeatedly used, the general installation and disassembly time is within one minute, and the work efficiency is greatly improved. And the working efficiency of loosening, separating and renovating the sleeper of the subway track bed is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of subway tracks, and in particular relates to a special steel rail jacking support tool for a subway integral track bed. Background Art

[0002] Rails are the most important components of track structures. Their function is to guide the wheels of vehicles forward, bear the pressure of the wheels, and transmit it to the structure under the rails. Rails bear wheel impacts and various dynamic loads during use. The rail foundation sleepers under the rails often crack, loosen, and detach, resulting in empty rail hangers and failure to carry train loads. In the worst case, the train shakes and passengers are not comfortable. In the worst case, the roadbed is damaged and collapsed, leading to train derailment.

[0003] In the traditional treatment of loose sleeper separation, there are problems such as long cement solidification time, sleepers cannot support rails, and poor treatment effect of sleeper separation and loosening. Therefore, there is an urgent need to provide a tooling that can replace damaged sleepers to support rails, which can not only meet the various parameters of the treatment of loose sleeper separation of the track bed, but also be easy and fast to install and disassemble, thus improving the efficiency of the treatment work. Utility Model Content

[0004] The purpose of the utility model is to provide a special rail lifting support tooling for the integral roadbed of a subway, which meets various parameters for the treatment of loose and separated roadbed sleepers. After the treatment of loose and separated roadbed sleepers is completed, the disassembled tooling can be reused. The general installation and disassembly time is within 1 minute, which greatly improves the work efficiency of the treatment of loose and separated roadbed sleepers of subway roadbeds.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a special rail jacking support tool for a subway integral track bed, comprising a lower pad, an upper support pad and a jacking assembly, wherein the lower pad is fixed on the track bed; the upper support pad is located above the lower pad; the jacking assembly comprises a jacking bolt, the upper support pad is provided with a first threaded hole corresponding to the jacking bolt, the threaded section of the jacking bolt is threadedly connected in the first threaded hole, the bottom of the jacking bolt is rotatably connected to the lower pad, and the jacking bolt is used to drive the upper support pad to move vertically;

[0006] Two groups of limiting components are arranged on the upper support pad, each group of limiting components includes a rail limiting block, a fastener limiting block and a T-bolt limiting block, and the two groups of rail limiting blocks are used to limit the two sides of the rail; the fastener limiting block is provided with a fastener limiting groove, and the fastener limiting groove is used to limit the fastener; the T-bolt limiting block is provided with a T-bolt limiting groove, and the T-bolt limiting groove is used to limit the T-bolt.

[0007] Furthermore, the lower pad is provided with a lower pad fixing hole, and the expansion bolt is fixedly connected to the ballast bed through the lower pad fixing hole.

[0008] Furthermore, under-rail pad limiting blocks are provided on both sides of the upper support pad, and the two groups of under-rail pad limiting blocks are used to limit the insulating rubber pad under the rail.

[0009] Furthermore, the upper support pad is provided with a guide hole, the lower pad is provided with a second threaded hole corresponding to the guide hole, the threaded section of the connecting bolt is threadedly connected to the second threaded hole on the lower pad, and the guide hole is used to vertically guide the light rod on the connecting bolt.

[0010] Furthermore, a locking nut is threadedly connected to the jacking bolt.

[0011] Furthermore, a buffer rubber pad is provided on the lower side of the lower pad, and a rubber pad through hole corresponding to the fixing hole of the lower pad is provided on the buffer rubber pad.

[0012] Furthermore, it also includes several groups of track gauge blocks of different sizes, and the track gauge blocks are used to be installed in the gap between the rails and the rail limit blocks.

[0013] The installation process of this technical solution is:

[0014] (1) The user selects the installation location on the subway track bed according to the installation location of the tooling, and smoothes and cleans the surface of the track bed;

[0015] (2) The user reverses the lifting bolt of the tool to the lowest position and moves the tool to the position where the rail needs to be lifted, which is between the rail and the ballast bed;

[0016] (3) Install the upper structure of this tooling, install the insulating rubber pad under the rail at the bottom of the rail, and ensure that the insulating rubber pad under the rail is correctly installed at the position of the rail pad limit block; install the buffer rubber pad at the bottom of the lower pad, and make the hole position of the rubber pad through hole correspond to the lower pad fixing hole of the lower pad. Manually turn the jacking bolt forward to drive the upper support pad to rise until the upper support pad reaches the bottom of the rail, adjust the position of the rail and the rail limit block and install the gauge block of the corresponding size in the gap to fix the left and right position of the rail. Then install the fasteners, T-bolts, washers and nuts to fix the upper and lower positions of the rails, use a wrench to re-tighten the jacking bolts to lift the rail to the required position, tighten the locking nut, and the upper structure installation is complete;

[0017] (4) Install the lower structure. After the upper structure is installed, use expansion bolts to fix the lower pad to the roadbed. The jacking tooling is installed.

[0018] The beneficial effects of this technical solution are:

[0019] This technical solution is easy to install and only requires one operator to complete the installation and use. In the treatment of loose and separated track sleepers, it can achieve the function of replacing the sleepers to support the rail load-bearing support and lift the track sleepers, and meet various parameters for the treatment of loose and separated track sleepers. After the treatment of loose and separated track sleepers, the disassembled tooling can be reused. Generally, the installation and disassembly time is within 1 minute, which greatly improves the efficiency of the treatment of loose and separated track sleepers in subway track beds. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a special rail jacking support tooling for a subway integral track bed according to the utility model;

[0021] Figure 2 for Figure 1 The main view of

[0022] Figure 3 for Figure 1 A top view of

[0023] Figure 4 for Figure 2 Cross-sectional view at AA in the middle. DETAILED DESCRIPTION

[0024] The following is further described in detail through specific implementation methods:

[0025] The figure marks in the drawings of the specification include: lower pad 1, upper support pad 2, lifting bolt 3, locking nut 4, connecting bolt 5, rail limit block 6, fastener limit block 7, fastener limit groove 8, T-bolt limit block 9, T-bolt limit groove 10, rail lower pad limit block 11, lower pad fixing hole 12.

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The embodiment is basically as shown in the attached Figure 1-3 As shown: a special rail lifting support tool for a subway integral track bed, comprising a lower pad 1, an upper support pad 2, a lifting assembly and a gauge block, wherein the lower pad 1 is fixed on the track bed, and specifically, a lower pad fixing hole 12 is provided on the lower pad 1, and an expansion bolt is fixedly connected to the track bed through the lower pad fixing hole 12. The upper support pad 2 is located above the lower pad 1.

[0028] There are two groups of jacking components, which are respectively located on the left and right sides of the upper support pad 2. Each group of jacking components includes a jacking bolt 3, and a locking nut 4 is threadedly connected to the jacking bolt 3. Figure 4 As shown, the upper support pad 2 is provided with a first threaded hole corresponding to the jacking bolt 3, the threaded section of the jacking bolt 3 is threadedly connected in the first threaded hole, the bottom of the jacking bolt 3 is rotatably connected to the lower pad 1, and the jacking bolt 3 is used to drive the upper support pad 2 to move vertically. The upper support pad 2 is provided with a guide hole, the lower pad 1 is provided with a second threaded hole corresponding to the guide hole, the threaded section of the connecting bolt 5 is threadedly connected to the second threaded hole on the lower pad 1, and the guide hole is used to vertically guide the polished rod on the connecting bolt 5. In this embodiment, the guide hole, the second threaded hole and the connecting bolt 5 are respectively provided in two groups and are respectively located on the left and right sides of the upper support pad 2.

[0029] Two groups of limiting components are arranged on the upper supporting pad 2, each group of limiting components includes a rail limiting block 6, a fastener limiting block 7 and a T-bolt limiting block 9. The two groups of rail limiting blocks 6 are used to limit the two sides of the rail; the fastener limiting block 7 is provided with a fastener limiting groove 8, and the fastener limiting groove 8 is used to limit the fastener; the T-bolt limiting block 9 is provided with a T-bolt limiting groove 10, and the T-bolt limiting groove 10 is used to limit the T-bolt.

[0030] Several groups of gauge blocks of different sizes are provided, and the gauge blocks are used to be installed in the gap position between the rail and the rail limit block 6.

[0031] The upper support pad 2 is provided with under-rail pad limiting blocks 11 at the front and rear sides. The two groups of under-rail pad limiting blocks 11 are used to limit the insulating rubber pad under the rail.

[0032] A buffer rubber pad is provided on the lower side of the lower pad 1 , and a rubber pad through hole corresponding to the lower pad fixing hole 12 is provided on the buffer rubber pad.

[0033] The installation process is:

[0034] (1) The user selects the installation location on the subway track bed according to the installation location of the tooling, and smoothes and cleans the surface of the track bed;

[0035] (2) The user reverses the jacking bolt 3 of the tool to the lowest position and moves the tool to the position where the rail needs to be jacked, which is between the rail and the ballast bed;

[0036] (3) Install the upper structure of the tooling, install the insulating rubber pad under the rail at the bottom of the rail, and ensure that the insulating rubber pad under the rail is correctly installed at the position of the rail pad limit block 11; install the buffer rubber pad at the bottom of the lower pad 1, and make the hole position of the rubber pad through hole correspond to the lower pad fixing hole 12 of the lower pad 1. Manually rotate the jacking bolt 3 forward to drive the upper support pad 2 to rise until the upper support pad 2 reaches the bottom of the rail, adjust the position of the rail and the rail limit block 6 and install the gauge block of the corresponding size at the gap to fix the left and right position of the rail. Then install the fasteners, T-bolts, washers and nuts to fix the upper and lower positions of the rails, use a wrench to re-tighten the jacking bolt 3 to lift the rail to the required position, tighten the locking nut 4, and the upper structure installation is complete;

[0037] (4) Install the lower structure. After the upper structure is installed, use expansion bolts to fix the lower pad 1 on the ballast bed. The jacking tooling is installed.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] The above is only an embodiment of the utility model. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the utility model before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for the technicians in this field, without departing from the structure of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, which will not affect the effect of the implementation of the utility model and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to explain the content of the claims.

Claims

1. A special rail lifting support tool for subway monolithic track bed, characterized by: The invention comprises a lower pad (1), an upper support pad (2) and a jacking assembly, wherein the lower pad (1) is fixed on the ballast bed; the upper support pad (2) is located above the lower pad (1); the jacking assembly comprises a jacking bolt (3), the upper support pad (2) is provided with a first threaded hole corresponding to the jacking bolt (3), the threaded section of the jacking bolt (3) is threadedly connected in the first threaded hole, the bottom of the jacking bolt (3) is rotatably connected to the lower pad (1), and the jacking bolt (3) is used to drive the upper support pad (2) to move vertically; The upper support pad (2) is provided with two groups of limiting components, each group of the limiting components comprises a rail limiting block (6), a fastener limiting block (7) and a T-bolt limiting block (9), the two groups of the rail limiting blocks (6) are used to limit the two sides of the rail; the fastener limiting block (7) is provided with a fastener limiting groove (8), the fastener limiting groove (8) is used to limit the fastener; the T-bolt limiting block (9) is provided with a T-bolt limiting groove (10), the T-bolt limiting groove (10) is used to limit the T-bolt.

2. The special rail lifting support tool for subway monolithic track bed according to claim 1 is characterized by: The lower pad (1) is provided with a lower pad fixing hole (12), and the expansion bolt is fixedly connected to the ballast bed through the lower pad fixing hole (12).

3. The special rail lifting support tool for subway monolithic track bed according to claim 1 is characterized by: Rail under-pad limiting blocks (11) are provided on both sides of the upper support pad (2), and the two groups of rail under-pad limiting blocks (11) are used to limit the insulating rubber pad under the rail.

4. The special rail lifting support tool for subway monolithic track bed according to claim 1 is characterized by: The upper support pad (2) is provided with a guide hole, the lower pad (1) is provided with a second threaded hole corresponding to the guide hole, the threaded section of the connecting bolt (5) is threadedly connected to the second threaded hole on the lower pad (1), and the guide hole is used to vertically guide the light rod on the connecting bolt (5).

5. The special rail lifting support tool for subway monolithic track bed according to claim 1 is characterized by: A locking nut (4) is threadedly connected to the jacking bolt (3).

6. The special rail lifting support tool for subway monolithic track bed according to claim 1 is characterized by: A cushioning rubber pad is provided on the lower side of the lower pad (1), and a rubber pad through hole corresponding to the lower pad fixing hole (12) is provided on the cushioning rubber pad.

7. The special rail lifting support tool for subway monolithic track bed according to claim 1 is characterized by: It also comprises several groups of track gauge blocks of different sizes, wherein the track gauge blocks are used to be installed in the gap between the steel rail and the steel rail limiting block (6).

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