A subway roadbed support block empty lifting transformation fixing device and use method

Abstract

The present invention relates to the technical field of urban rail transit, and specifically to a device and a method for using the empty suspension transformation fixing device of a subway track bed support block, which is characterized by comprising a leveling cross bar, the left and right sides and the middle of the leveling cross bar are provided with through holes, and the leveling cross bar is also provided with a groove for placing a horizontal bubble ruler; an adjusting screw rod, the adjusting screw rod passes through the through hole in the middle of the leveling cross bar, and the bottom of the adjusting screw rod is connected to a rail clamp; two support block hooks, the support block hooks include an adjusting screw rod and a U-shaped fork, the adjusting screw rod passes through the through holes on the left and right sides of the leveling cross bar, and the bottom of the adjusting screw rod is connected to the U-shaped fork; a rail clamp, the bottom of the rail clamp is provided with a groove, the groove cooperates with the rail, the top surface of the rail clamp is an inclined surface, the top surface of the rail clamp is provided with a groove, and a horizontal bubble ruler is provided in the groove. The advantages are: fixing is performed by using the rail, no additional auxiliary equipment is required, the operation is simple, convenient and reliable.

Description

Technical Field

[0001] The invention relates to the technical field of urban rail transit, in particular to a device for fixing an empty-hanging transformation of a subway roadbed support block and a use method thereof. Background Art

[0002] Since the longitudinal track bearing platform ballast structure is affected by construction quality, natural environment and train load, the track structure after operation is prone to problems such as empty support blocks. When the train passes by, the empty support blocks will float up and down significantly, causing the geometric shape of the track structure to deteriorate and cause serious shaking of the line.

[0003] In order to solve the problem of empty support blocks on existing tracks, the actual operation and maintenance process uses the time when trains are out of service to have construction workers chisel out the original support blocks, reassemble, fix, and cast new support blocks for repair. In the process of fixing the support blocks, it is necessary to adjust the geometric shape of the support blocks to ensure that the rails can maintain a slope of 1:40 after replacing the new support blocks. Currently, manual adjustment measures such as observation with a ruler are used in repair operations to solve this problem, but the construction efficiency is low and the adjustment effect is limited. Summary of the invention

[0004] The purpose of the present invention is to provide a design scheme for the modification and fixing device of the empty hanging support block of the urban rail elevated longitudinal rail-bearing platform section, in order to solve the problem of the empty hanging of the integral roadbed of the support block of the urban rail elevated longitudinal rail-bearing platform section, so as to realize the high-speed, fast and convenient adjustment and fixing of the geometric shape and position of the support block within a limited window time, thereby achieving rapid construction while ensuring the geometric shape and position of the rail and the support block.

[0005] In order to achieve the above-mentioned purpose, a subway track bed support block empty lifting transformation fixing device is designed, which is characterized by comprising a leveling cross bar, the left and right sides and the middle of the leveling cross bar are provided with through holes, and the leveling cross bar is also provided with a groove for placing a horizontal bubble ruler; an adjusting screw rod, the adjusting screw rod passes through the through hole in the middle of the leveling cross bar, and the bottom of the adjusting screw rod is connected to a rail clamp; two support block hooks, the support block hooks include an adjusting screw rod and a U-shaped fork, the adjusting screw rod passes through the through holes on the left and right sides of the leveling cross bar, and the bottom of the adjusting screw rod is connected to the U-shaped fork; a rail clamp, the bottom of the rail clamp is provided with a groove, the groove cooperates with the rail, the top surface of the rail clamp is an inclined surface, the top surface of the rail clamp is provided with a groove, and a horizontal bubble ruler is provided in the groove.

[0006] Preferably, the leveling cross bar is a rectangular square tube, and through holes are opened on the left side, the right side and the middle of the wider side.

[0007] Preferably, the support block hook includes an adjusting screw rod and a U-shaped fork, the bottom of the adjusting screw rod is welded to the U-shaped fork, the upper end of the adjusting screw rod passes through the through holes on both sides of the leveling cross bar, and is connected to the leveling cross bar through an adjusting nut.

[0008] Preferably, an adjusting screw is connected to the leveling cross bar through two adjusting nuts, a limit block is provided between the two adjusting nuts, the adjusting screw passes through the lower adjusting nut, the limit block and the upper adjusting nut in sequence, and the limit block is arranged in the through hole of the leveling cross bar.

[0009] Preferably, the two U-shaped forks are in opposite directions, and the U-shaped forks are used to connect the supporting blocks.

[0010] Preferably, a circular handle dial is provided on the top of the height adjustment screw rod.

[0011] A method for using a subway track bed support block empty lifting modification fixing device is designed, which is characterized in that the method steps are as follows:

[0012] A. Place the device at the new support block installation position, observe the bubble position in the second horizontal bubble ruler on the rail clamp, and ensure that the device is in a vertical state as a whole;

[0013] B. Rotate the handle dial to lower the height of the leveling crossbar, insert the U-shaped fork part of the support block hook between the bolt and the gasket of the support block bolt spike, and tighten the support block bolt spike to achieve the connection and fixation of the support block and the device;

[0014] C. Rotate the handle dial to adjust the height of the leveling crossbar so that the elastic gasket of the support block fits the bottom surface of the rail to complete the rough adjustment of the geometric shape of the support block;

[0015] D. Fine-tune the height of the two support block hooks through the upper and lower adjustment nuts on the support block hooks, observe the bubble position in the first horizontal bubble ruler on the leveling crossbar, ensure that the support block is in a horizontal state as a whole, and complete the fine adjustment of the geometric shape of the support block;

[0016] E. Since the top surface of the rail clamp is an inclined surface, the size is selected according to the curve radius of the line, and the second horizontal bubble ruler is observed to ensure that the top surface of the rail clamp is level and achieve a rail bottom slope of 1:40;

[0017] F. After the adjustment is completed, apply the interface agent and use early-strength concrete to cast the new support block. After the concrete reaches the strength requirement, pull out the hook U-shaped fork and tighten the bolt spikes.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. Use steel rails for fixing, no additional auxiliary equipment is required, the operation is simple, convenient and reliable;

[0020] 2. The horizontal bubble ruler on the equipment can quickly and conveniently check the geometric shape and position of the rail and the support block;

[0021] 3. The rail bottom slope adjustment for curved sections can be achieved through simple component replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the device of the present invention;

[0023] Figure 1 (a) is a top view of the device of the present invention;

[0024] Figure 2 This is a schematic diagram of the support block hook structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the rail clamp of the present invention;

[0026] Figure 4 A state diagram for use with the device of the present invention;

[0027] In the figure: 1-1. Handle turntable 1-2. Height adjustment screw 1-3. Leveling crossbar 1-4. Support block hook 1-5. Rail clamp 1-6. First level bubble ruler;

[0028] 2-1. Upper adjusting nut 2-2. Limit block 2-3. Lower adjusting nut 2-4. Adjusting screw 2-5. U-shaped fork;

[0029] 3-1. Screw base 3-2. Fixing bolt 3-3. Second level bubble ruler 3-4. Profiling groove;

[0030] 4-1. Fixing tooling 4-2. Rail fasteners 4-3. Fastener bolts and spikes 4-4. Support blocks. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with the accompanying drawings, and the structure and principle of the present invention are very clear to people in the field. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0032] Example 1, see Figure 1-Figure 4 The present invention provides a subway track bed support block empty lifting transformation fixing device, the device adopts an assembled structure, and is mainly composed of a handle turntable, a height adjustment screw rod, a leveling cross bar, a support block hook, a horizontal bubble ruler and a rail clamp.

[0033] The height adjustment screw rod is a screw rod made of round steel and is used to adjust the relative distance between the leveling crossbar and the rail;

[0034] The handle turntable is a circular turntable structure, which is fixed to the height adjustment screw by bolts. A handle is provided on one side of the turntable. During operation, the height adjustment screw can be rotated by rotating the handle;

[0035] The leveling crossbar is a rectangular square tube, with a through hole on the wider side for the support block hook to pass through, and a slot for placing the first horizontal bubble ruler;

[0036] The upper part of the support block hook is processed into a screw rod, and the lower part is ordinary round steel, which is fixed on the leveling crossbar through the upper adjustment nut and the lower adjustment nut. A limit block is set between the adjustment nuts. A U-shaped fork is welded on the lower part, which can be inserted under the support block fastener spike to connect the support block hook and the support block;

[0037] The horizontal bubble ruler is a bubble ruler with scales, which is convenient for construction workers to observe the geometric shapes and positions of the support blocks and rails;

[0038] The rail clamp is made of steel ingots. A screw base is provided on the top of the rail, which is connected to the height-adjusting screw through a fixing bolt. The lower part of the rail clamp is a rail-profiling groove for tightly fitting the rail. The top surface of the rail clamp is an inclined slope. The corresponding slope of the inclined surface can be selected according to the curve radius of the corresponding construction line to adjust the rail bottom slope of 1:40 required for the construction operation.

[0039] Example 2, see Figure 4 The present invention provides a method for using a fixing device for the empty-hanging transformation of a subway track bed support block. The specific method is as follows: after completing the dismantling of the existing support block, place the device at the installation position of the new support block, observe the bubble position in the second horizontal bubble ruler on the rail clamp, ensure that the device is in a vertical state as a whole, rotate the handle dial, lower the height of the leveling crossbar, and after loosening the fastener bolt spike, insert the U-shaped fork part of the support block hook between the bolt spike bolt and the gasket, tighten the support block fastener bolt spike, and achieve the connection and fixation of the support block and the fixing device. Rotate the handle dial to adjust the height of the leveling crossbar so that the elastic gasket of the support block fastener fits the bottom surface of the rail, and the rough adjustment of the geometric shape of the support block is completed. By adjusting the upper and lower adjustment nuts on the support block hook, the height of the two support block hooks is fine-tuned, and the bubble position in the horizontal bubble ruler on the leveling crossbar is observed to ensure that the support block is in a horizontal state as a whole, and the fine adjustment of the geometric shape of the support block is completed. Since the top surface of the rail clamp is an inclined surface, the size is selected according to the curve radius of the current line. The second horizontal bubble ruler is used to ensure that the top surface of the rail clamp is level, and a rail bottom slope of 1:40 can be achieved. After the adjustment is completed, the interface agent is applied, and the new support block is poured with early-strength concrete. After the concrete reaches the strength requirement, the hook U-shaped fork is pulled out and the fastener bolts and spikes are tightened.

Claims

1. A subway track bed support block empty lifting transformation fixing device, characterized in that include A leveling cross bar, wherein through holes are provided on both sides and the middle of the leveling cross bar, and a groove is provided on the leveling cross bar for placing a horizontal bubble ruler; An adjusting screw rod, the adjusting screw rod passes through the through hole in the middle of the leveling cross bar, and the bottom of the adjusting screw rod is connected to a rail clamp; Two support block hooks, the support block hooks include an adjusting screw rod and a U-shaped fork, the adjusting screw rod passes through the through holes on the left and right sides of the leveling cross bar, and the bottom of the adjusting screw rod is connected to the U-shaped fork; A rail clamp, wherein a groove is provided at the bottom of the rail clamp, the groove cooperates with the rail, the top surface of the rail clamp is an inclined surface, the top surface of the rail clamp is provided with a groove, and a horizontal bubble ruler is provided in the groove.

2. The subway track bed support block empty lifting transformation fixing device as claimed in claim 1, characterized in that: The leveling cross bar is a rectangular square tube, and through holes are opened on the left side, the right side and the middle part of a wider side.

3. The subway track bed support block empty hanging transformation fixing device as claimed in claim 1, characterized in that: The bottom of the adjusting screw rod is welded to the U-shaped fork, and the upper end of the adjusting screw rod passes through the through holes on both sides of the leveling cross bar and is connected to the leveling cross bar through an adjusting nut.

4. A subway track bed support block empty lifting transformation fixing device as claimed in claim 3, characterized in that: The adjusting screw is connected to the leveling cross bar through two adjusting nuts, a limit block is arranged between the two adjusting nuts, the adjusting screw passes through the lower adjusting nut, the limit block and the upper adjusting nut in sequence, and the limit block is arranged in the through hole of the leveling cross bar.

5. The subway track bed support block empty hanging transformation fixing device as claimed in claim 3, characterized in that: The two U-shaped forks are in opposite directions, and the U-shaped forks are used to connect the supporting blocks.

6. The subway track bed support block empty hanging transformation fixing device as claimed in claim 1, characterized in that: A circular rotating disk is arranged on the top of the adjusting screw rod.

7. A method for using a subway track bed support block empty hanging modification fixing device using the fixing device as described in any one of claims 1 to 6, characterized in that The steps are as follows: A. Place the device at the new support block installation position, observe the bubble position in the second horizontal bubble ruler on the rail clamp, and ensure that the device is in a vertical state as a whole; B. Rotate the handle dial to lower the height of the leveling crossbar, insert the U-shaped fork part of the support block hook between the bolt and the gasket of the support block bolt spike, and tighten the support block bolt spike to achieve the connection and fixation of the support block and the device; C. Rotate the handle dial to adjust the height of the leveling crossbar so that the elastic gasket of the support block fits the bottom surface of the rail to complete the rough adjustment of the geometric shape of the support block; D. Fine-tune the height of the two support block hooks through the upper and lower adjustment nuts on the support block hooks, observe the bubble position in the first horizontal bubble ruler on the leveling crossbar, ensure that the support block is in a horizontal state as a whole, and complete the fine adjustment of the geometric shape of the support block; E. Since the top surface of the rail clamp is an inclined surface, the size is selected according to the curve radius of the line, and the second horizontal bubble ruler is observed to ensure that the top surface of the rail clamp is level and achieve a rail bottom slope of 1:40; F. After the adjustment is completed, apply the interface agent and use early-strength concrete to cast the new support block. After the concrete reaches the strength requirement, pull out the hook U-shaped fork and tighten the bolt spikes.

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