A fixing device for over-limit transformation of bottom slope of short rail sleeper of subway support block and its use method

Abstract

The present invention relates to the field of track engineering technology, and specifically to a fixing device for over-limit modification of the bottom slope of a short rail sleeper of a subway support block and a method for use thereof, wherein the fixing device comprises a symmetrically arranged first fixing portion and a second fixing portion; the first fixing portion and the second fixing portion are respectively provided with horizontal fixing wings extending outward on opposite sides thereof, and the horizontal fixing wings are provided with connecting holes; a height adjustment rod is provided with a threaded section for connecting to the connecting holes of the horizontal fixing wings through an adjusting nut, and a base is provided at the bottom end of the height adjustment rod, and an opening is provided on the base. Compared with the prior art, the advantages of the present invention are that: the support block and fasteners can be positioned during the repair process, the rails can be clamped by the fixing device, so that the entire device can be fixed by using the rails, and the height of the support block can be adjusted by cooperating with the horizontal fixing wings and the height adjustment rod; at the same time, the overall tooling structure is simple and lightweight, suitable for use on existing lines, and requires less processing materials and has low manufacturing costs.

Description

Technical Field

[0001] The invention relates to the technical field of track engineering, in particular to a fixing device for over-limit transformation of bottom slope of short rail sleeper of a subway support block and a use method thereof. Background Art

[0002] At present, due to inadequate quality control during the construction process, the existing urban rail lines in my country may have quality defects such as the track bottom slope exceeding the specified range in the longitudinal track platform roadbed, which leads to increased rail wear and train shaking, resulting in increased operating costs and reduced passenger experience.

[0003] When existing tracks experience excessive bottom slope, repairs often involve chiseling out the original support blocks and reassembling and pouring them. During the secondary pouring process, the geometric position of the support blocks and fasteners must be fixed to correct the track condition. Currently, specialized tools for this purpose are lacking.

[0004] The construction of existing lines is characterized by short construction time and high driving safety requirements. It is urgent to design a new tool that is convenient, fast, safe, reliable, and easy to ensure the track bottom slope range to ensure construction efficiency and repair quality. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies of the prior art and provide a subway support block short rail sleeper bottom slope overrun reconstruction fixing device and use method, so as to position the support block and fasteners during the repair process.

[0006] In order to achieve the above-mentioned purpose, a fixing device is designed, which includes a first fixing part and a second fixing part arranged symmetrically, and the first fixing part and the second fixing part are hinged to each other for clamping the rail; horizontal fixing wings, horizontal fixing wings are respectively extended outward on opposite sides of the first fixing part and the second fixing part; an elevation adjustment rod, the bottom end of the elevation adjustment rod is provided with a base, the base is provided with an opening, and the elevation adjustment rod is connected to the horizontal fixing wings and can move relative to the horizontal fixing wings to adjust the height of the opening.

[0007] The first fixing portion and the second fixing portion respectively have a first clamping end surface for clamping the upper end surface of the rail top, a second clamping end surface for clamping the side surface of the rail top, and a third clamping end surface for clamping a specified lower end surface.

[0008] The horizontal fixed wing is provided with a connecting hole, and the elevation adjustment rod is provided with a threaded section for being connected to the connecting hole of the horizontal fixed wing through an adjusting nut.

[0009] The two horizontal fixed wings are located at the same height and parallel to each other.

[0010] One of the horizontal fixed wings is gradually tilted forward from the inside to the outside, and the other horizontal fixed wing is gradually tilted backward from the inside to the outside.

[0011] The bases at the bottom of the two height adjustment rods are arranged in opposite directions.

[0012] The horizontal fixed wing is made of U-shaped steel.

[0013] The first fixing part and the second fixing part are made of channel steel, and the first fixing part and the second fixing part are rotatably connected via a hinge.

[0014] The elevation adjustment rod is made of round steel.

[0015] The present invention also relates to a method for using the above-mentioned subway support block short rail sleeper bottom slope over-limit modification fixing device, the method comprising the following steps: S1. Fixing the above-mentioned subway support block short rail sleeper bottom slope over-limit modification fixing device to the rail and the support block; S2. Adjusting the geometric position of the support block upward through the adjusting nut on the elevation adjustment rod so that the elastic gasket on the support block fastener fits the bottom surface of the rail to achieve coarse adjustment of the geometric position of the support block; S3. After the coarse adjustment is completed, using a horizontal bubble ruler to ensure that the support block is in a horizontal state, and by fine-tuning the adjusting nut on the elevation adjustment rod, adjusting the inclination angle between the rail and the support block, and using a rail bottom slope detection device to confirm the rail bottom slope gradient.

[0016] Advantageous Effects of the Invention

[0017] Compared with the prior art, the present invention has a simple and feasible combined structure, and is easy to install and disassemble. Its advantages are: it provides a subway support block short rail sleeper bottom slope overrun modification fixing device, which can position the support block and fasteners during the repair process, and clamps the rails through the fixing device, so that the rails can be used to fix the entire device. The operation is simple, convenient and reliable, and the height adjustment of the support block can be achieved through the cooperation of the horizontal fixing wings and the elevation adjustment rod; at the same time, the overall tooling structure is simple and light, suitable for use on existing lines, and requires less processing materials and has low manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1a It is an isometric view of the fixing device for over-limit modification of the bottom slope of the short rail sleeper of the subway support block.

[0019] Figure 1b This is a front view of the fixing device for the over-limit modification of the bottom slope of the short rail sleeper of the subway support block.

[0020] Figure 1c This is the right view of the fixing device for the over-limit modification of the bottom slope of the short rail sleeper of the subway support block.

[0021] Figure 1d This is a top view of the fixing device for the over-limit modification of the bottom slope of the short rail sleeper of the subway support block.

[0022] Figure 2a This is the front view of the elevation adjustment rod.

[0023] Figure 2b This is the right side view of the elevation adjustment lever.

[0024] Figure 2c This is a top view of the elevation adjustment rod.

[0025] Figure 3a is a side view of the fixture.

[0026] Figure 3b is a top view of the fixture.

[0027] Figure 4 This is an isometric drawing of the subway support block short rail sleeper bottom slope overrun modification fixing device in operation.

[0028] Figure: 1-1. Fixing device 1-2. Horizontal fixed wing 1-3. Elevation adjustment rod 2-1. Fastening thread 2-2. Adjusting nut 2-3. Perforated steel plate 3-1. Hinge 3-2. U-shaped steel 3-3. Round hole 4-1. Subway support block Short rail sleeper bottom slope overrun modification fixing device 4-2. Fastener spike bolt 4-3. Support block. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings. The structure and principle of this device will be very clear to those skilled in the art. It should be understood that the specific embodiments described herein are only intended to explain the present invention and are not intended to limit the present invention.

[0030] See also Figure 1a-Figure 1d The subway support block short rail sleeper bottom slope overrun fixation device utilizes an assembled design, primarily comprising a fixture, horizontal fixing wings, and a height adjustment rod. During operation, the entire device is placed on the rail via the fixture. Construction personnel use the height adjustment rod to adjust the geometry of the support block and verify that the current geometry of the support block and rail meets construction specifications through measurement.

[0031] The fixing device comprises a first fixing portion and a second fixing portion which are symmetrically arranged, and the first fixing portion and the second fixing portion are hinged to each other for clamping the rail. Figure 3a-Figure 3b , the first fixing part and the second fixing part are respectively extended outwards on the opposite sides thereof to form a horizontal fixing wing, and the horizontal fixing wing is provided with a connecting hole, combined with Figure 2a-2cThe elevation adjustment rod is provided with a threaded section for connecting to the connecting hole of the horizontal fixed wing through an adjusting nut. The bottom end of the elevation adjustment rod is provided with a base, and the base is provided with an opening.

[0032] In a preferred embodiment, the first fixing portion and the second fixing portion respectively have a first clamping end surface for clamping the upper end surface of the rail top, a second clamping end surface for clamping the side surface of the rail top, and a third clamping end surface for clamping a specified lower end surface.

[0033] In a preferred embodiment, the two horizontal fixed wings are located at the same height and are parallel to each other, one horizontal fixed wing is gradually tilted forward from the inside to the outside, and the other horizontal fixed wing is gradually tilted backward from the inside to the outside. In addition, the bases at the bottom of the two elevation adjustment rods can be arranged in opposite directions.

[0034] Example 1

[0035] In this embodiment, the fixing device includes 100mm*8# channel steel and 100mm*40mm hinge, which is used to fix the entire equipment on the rail to prevent the geometric position between the adjusted rail and the support block from being affected by construction vibration.

[0036] The horizontal fixed wing uses 20mm*30mm*180mm U-shaped steel, which is connected to both sides of the fixing device by welding. At the same time, a 40mm*10mm round through hole is opened 130mm away from the channel steel for connecting the elevation adjustment rod.

[0037] The elevation adjustment rod is made of round steel, with a 30mm*40mm*10mm perforated steel plate welded to the bottom as a base for connecting the fastener spike bolts on the support block fastener. A 50mm threaded section is reserved in the center 45mm from the top for elevation adjustment function.

[0038] Example 2

[0039] Combine Figure 4 This embodiment provides a method for using the above-mentioned subway support block short rail sleeper bottom slope overrun reconstruction fixing device. In the support block short rail sleeper bottom slope overrun reconstruction operation, after completing the removal of the existing support block, the subway support block short rail sleeper bottom slope overrun reconstruction fixing device is placed at the position where the new support block is to be installed, and the fixing device is fixed to the rail, the spike bolt on the support block fastener is unscrewed, the spike bolt is passed through the perforated steel plate at the bottom of the elevation adjustment rod, and then the spike bolt is tightened to achieve the connection and fixation between the support block and the fixing device.

[0040] The geometric position of the support block is adjusted upward by the adjusting nut on the elevation adjustment rod, so that the elastic gasket on the support block fastener fits the bottom surface of the rail, thereby achieving coarse adjustment of the geometric position of the support block.

[0041] After the coarse adjustment is completed, use a bubble level to ensure that the support block is in a horizontal state. By fine-tuning the adjusting nut on the elevation adjustment rod, adjust the inclination angle between the rail and the support block. Use the rail bottom slope detection device to confirm the rail bottom slope. This can complete the rail bottom slope adjustment operation without any other steps.

[0042] After adjustment, apply interface agent and cast the new support block with early-strength concrete. Once the concrete reaches the required strength, install the support block spring clips and unscrew the spike bolts. Remove the entire fixture, tighten the fastener bolts and spikes, and move the subway trackbed support block hang-up modification fixture to the next work site and repeat the above process.

Claims

1. A subway support block short rail sleeper bottom slope overrun reconstruction fixing device, characterized in that: include: A fixing device, the fixing device comprising a first fixing portion and a second fixing portion symmetrically arranged, wherein the first fixing portion and the second fixing portion are hinged to each other for clamping the rail; Horizontal fixing wings, wherein the first fixing portion and the second fixing portion are respectively extended outwardly on opposite sides thereof and are provided with horizontal fixing wings, and the horizontal fixing wings are provided with connecting holes; An elevation adjustment rod, the elevation adjustment rod having a threaded section for coupling to the connection hole of the horizontal fixed wing via an adjustment nut. The bottom end of the elevation adjustment rod has a base, the base having an opening, and the elevation adjustment rod is connected to the horizontal fixed wing and can move relative to the horizontal fixed wing to adjust the height of the opening. The base is used to connect to the fastener spike bolt on the support block fastener; The first fixing portion and the second fixing portion respectively have a first clamping end surface for clamping the upper end surface of the rail top, a second clamping end surface for clamping the side surface of the rail top, and a third clamping end surface for clamping the lower end surface of the rail top; The first fixing part and the second fixing part are made of channel steel, and the first fixing part and the second fixing part are rotatably connected via a hinge.

2. A subway support block short rail sleeper bottom slope overrun reconstruction fixing device as claimed in claim 1, characterized in that The two horizontal fixed wings are located at the same height and parallel to each other.

3. A subway support block short rail sleeper bottom slope overrun reconstruction fixing device as claimed in claim 2, characterized in that One of the horizontal fixed wings is gradually tilted forward from the inside to the outside, and the other horizontal fixed wing is gradually tilted backward from the inside to the outside.

4. A subway support block short rail sleeper bottom slope overrun reconstruction fixing device as claimed in claim 2 or 3, characterized in that The bases at the bottom of the two height adjustment rods are arranged in opposite directions.

5. A subway support block short rail sleeper bottom slope overrun reconstruction fixing device as claimed in claim 1, characterized in that The horizontal fixed wing is made of U-shaped steel.

6. A subway support block short rail sleeper bottom slope overrun reconstruction fixing device as claimed in claim 1, characterized in that The elevation adjustment rod is made of round steel.

7. A method for using the subway support block short rail sleeper bottom slope overrun fixation device as claimed in claim 1, characterized in that The method described is as follows: S1. The subway support block short rail sleeper bottom slope overrun transformation fixture and rail and support block fixed; S2. Adjust the support block geometry by adjusting the nut on the elevation adjustment rod so that the elastic gasket on the support block fastener fits the bottom surface of the rail to achieve coarse adjustment of the support block geometry; S3. After the coarse adjustment is completed, use a bubble level to ensure that the support block is in a horizontal state. By fine-tuning the adjusting nut on the elevation adjustment rod, adjust the inclination angle between the rail and the support block. Use the rail bottom slope detection device to confirm the rail bottom slope.

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