Shield main machine air pushing walking anti-rolling device and application method thereof

Abstract

The application discloses a shield main machine empty pushing walking anti-rolling device and an application method thereof. The device comprises a track device, an anti-rolling device and a pushing device. The method comprises the following steps: welding a shield support body; connecting walking wheels and a lateral limiting oil cylinder with the shield support body; laying two steel rails; placing the walking wheels on the steel rails; installing the pushing device behind the middle shield walking device on the steel rails and abutting against the walking wheels; and pushing the walking wheels forward. The device and the application method thereof simplify the construction process of the empty pushing walking of the shield main machine, and improve the construction efficiency of the empty pushing walking of the shield main machine.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of subway tunnel construction, and particularly relates to a shield main machine empty pushing walking anti-rolling device and an application method thereof. BACKGROUND

[0002] The shield method is used for the construction of a subway tunnel section, and the tunnel single line is composed of a shield construction section (large excavation diameter) and a mine method construction section (horse's hoof-shaped small excavation structure size). The shield main machine directly enters the mine section after the construction of the shield construction section is completed, and needs to be empty pushed and stepped until the overhead crane is lifted out. The conventional empty pushing and stepping method is to construct an arc-shaped concrete guide table in the mine section, so that the shield main machine is empty pushed and stepped on the arc-shaped guide table. In the case that the mine section is long, the cost of empty pushing and stepping by using the method of punching a concrete guide table in the whole mine section is large, and the construction progress is slow.

[0003] For example, the patent document with the Chinese invention patent application number CN202211628990.4 discloses a shield empty pushing device, which comprises a guide table, a connecting block is arranged on one side of the guide table, a connecting groove is formed in the other side of the guide table, a reverse pushing and retracting mechanism is arranged above the guide table and is slidably clamped into the connecting groove, the reverse pushing and retracting mechanism is used for pushing and sliding the shield machine slidably arranged on the guide table, and the connecting block on one side of one of the guide tables is connected with the connecting block on the side of the other guide table. When the shield machine needs to pass through a station to the next shield area, the shield empty pushing device needs to be arranged on the receiving section of the shield area to push and translate the shield machine. The existing shield empty pushing device is mostly arranged in the receiving section to form a flat sliding table, and then the reverse pushing assembly is arranged on the end face of the sliding table.

[0004] The existing technology, i.e. the method of empty pushing and stepping by setting a concrete guide table, has the technical problem of slow construction progress.

[0005] Based on the above technical problems existing in the prior art, the present application provides a shield main machine empty pushing walking anti-rolling device and an application method thereof. SUMMARY

[0006] The purpose of the present application is to provide a shield main machine empty pushing walking anti-rolling device and an application method thereof to solve the technical problems of the prior art.

[0007] In one aspect, the present application provides a shield main machine empty pushing walking anti-rolling device, which comprises:

[0008] A track device is fixedly arranged at the bottom end of the shield main machine.

[0009] The anti-rolling device is movably arranged on the track device, the shield mainframe is arranged on the anti-rolling device to move with the anti-rolling device, the anti-rolling device comprises rolling limiting devices abutting on both sides of the bottom end of the shield mainframe, and the arc-shaped grooves are arranged on the shield support body.

[0010] The pushing device is fixedly arranged on the track device, and the pushing end of the pushing device is used for pushing the anti-rolling device to move.

[0011] Further, the track device comprises two steel rails arranged side by side, and the two steel rails are fixed to the lower end of the shield mainframe.

[0012] Further, the rolling limiting device comprises a shield support body abutting on the shield mainframe, a pair of traveling wheels fixedly arranged at the lower end of the shield support body, and a lateral limiting oil cylinder with one end fixedly arranged on the side wall of the shield support body, the arc-shaped grooves are arranged on the shield support body, the pair of traveling wheels abut on the track device and can roll on the track device to move the rolling limiting device, and the other end of the lateral limiting oil cylinder abuts on the lateral tunnel face.

[0013] Further, the pushing device comprises a track clamping device and a pushing hydraulic oil cylinder, the track clamping device is fixedly arranged on the steel rail by clamping the steel rail, one end of the pushing hydraulic oil cylinder abuts on the track clamping device, and the other end of the pushing hydraulic oil cylinder abuts on the anti-rolling device to push the anti-rolling device to move.

[0014] Further, the fixed end of the lateral limiting oil cylinder is fixedly arranged on the shield support body, and the extending end of the lateral limiting oil cylinder abuts on the lateral tunnel face.

[0015] Further, a rubber plate is arranged between the other end of the lateral limiting oil cylinder and the lateral tunnel face.

[0016] Further, a diagonal support member is arranged between the fixed end of the lateral limiting oil cylinder and the side wall of the shield support body.

[0017] Further, a square timber is arranged between the other end of the pushing hydraulic oil cylinder and the anti-rolling device.

[0018] On the other hand, the application provides an application method of the shield mainframe empty pushing walking anti-rolling device, comprising:

[0019] Step 1: a group of shield support bodies are welded on the middle and front shields of the shield mainframe, wherein the group of shield support bodies comprises two shield support bodies located on both sides of the same position of the shield mainframe.

[0020] Step 2, connect the walking wheel pair and the lateral limiting oil cylinder with the shield support body, and fixedly connect the lateral limiting oil cylinder and the inclined support member;

[0021] Step 3, in the mine section tunnel, lay two steel rails according to the positioning size of the walking wheel pair, and fix the two steel rails firmly on the ground;

[0022] Step 4, push the shield main machine forward from the receiving base so that the walking wheel pair is on the steel rail;

[0023] Step 5, install the pushing device on the steel rail behind the middle shield walking device and abut against the walking wheel pair;

[0024] Step 6, provide a counterforce through the track clamping device of the pushing device, operate the pushing hydraulic oil cylinder to push the walking wheel pair forward, and adjust the distance between the lateral limiting oil cylinder and the side working face at the same time;

[0025] Step 7, the maximum extension length of the pushing hydraulic oil cylinder of the pushing device is one empty pushing cycle, and after the cycle is completed, the position of the track clamping pushing device is adjusted and the next cycle work is continued.

[0026] Further, before the next cycle work is continued in step 7, check the welding condition of the shield support body and the shield main machine, the connection condition of the walking wheel pair and the lateral limiting oil cylinder with the shield support body, the connection condition of the lateral limiting oil cylinder and the inclined support member, the stability condition of the two steel rails, and the distance between the lateral limiting oil cylinder and the side working face.

[0027] The beneficial effects of the present application are:

[0028] 1. The empty pushing walking anti-rolling device of the shield main machine simplifies the construction process of the empty pushing walking of the shield main machine, improves the construction efficiency of the empty pushing walking of the shield main machine, and saves cost for long-distance mine sections.

[0029] 2. The empty pushing walking anti-rolling device of the shield main machine can save manpower and save a large amount of counterforce machining piece welding work compared with the traditional empty pushing method.

[0030] 3. The empty pushing walking anti-rolling device of the shield main machine can prevent the shield main machine from contacting the working face and can adjust the angle by cooperating the shield support body, the lateral limiting oil cylinder and the rubber plate. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a side view of the empty pushing walking anti-rolling device of the shield main machine in the embodiment of the present application;

[0032] Figure 2The front view of the anti-rolling device for the shield main machine empty pushing walking in the embodiment of the application;

[0033] Figure 3 The structural schematic view of the rolling limiting device in the embodiment of the application.

[0034] In the figure:

[0035] 1-track device, 11-steel rail;

[0036] 2-shield main machine;

[0037] 3-anti-rolling device, 31-rolling limiting device, 311-arc-shaped groove, 312-shield support body, 313-walking wheel pair, 314-lateral limiting oil cylinder;

[0038] 4-pushing device, 41-rail clamping device, 42-pushing hydraulic oil cylinder, 43-square wood;

[0039] 5-rubber plate;

[0040] 6-inclined support member. DETAILED DESCRIPTION

[0041] In order to enable the above-mentioned objects, features and advantages of the application to be more clearly understood, the application will be further described in detail below with reference to the drawings and specific embodiments, and it should be noted that the embodiments of the application and the features in the embodiments can be combined with each other without conflict.

[0042] EMBODIMENT

[0043] In the embodiment, an anti-rolling device for the shield main machine empty pushing walking is provided, which has the anti-rolling function and cooperates with the rail clamping pushing device, so that the shield machine main machine directly walks on the rail quickly under specific working conditions (from large section to small section size), has the anti-rolling and steering functions, reduces the construction cost under specific working conditions, and improves the construction progress, which is safe and reliable.

[0044] Specifically, as shown in the figure, the anti-rolling device for the shield main machine empty pushing walking includes: Figures 1-2

[0045] The track device 1 is fixedly arranged at the bottom end of the shield main machine 2;

[0046] The anti-rolling device 3 is movably arranged on the track device 1, the shield main machine 2 is arranged on the anti-rolling device 3 to move with the anti-rolling device 3, and the anti-rolling device 3 includes the rolling limiting device 31 abutting on both sides of the bottom end of the shield main machine 2, and the rolling limiting device 31 is provided with the arc-shaped groove 311 abutting on the shield main machine 2;

[0047] ​A pushing device 4 is fixedly arranged on the track device 1, and a pushing end of the pushing device 4 is used to push the anti-rolling device 3 to move;

[0048] In the above embodiment, the track device 1 is arranged along the running path of the shield main machine 2, and the weight of the shield main machine 2 and the bearing capacity of the laying ground are considered;

[0049] The rolling limiting device 31 in the anti-rolling device 3 is arranged on both sides of the lower end of the shield main machine 2, so as to clamp the shield main machine 2 and effectively prevent the rolling of the shield main machine 2.

[0050] The track device 1 comprises two steel rails 11 arranged side by side, and the two steel rails 11 are fixed to the lower end of the shield main machine 2;

[0051] In the above embodiment, the arrangement of the two steel rails 11 is along the running path of the shield main machine 2, and the two steel rails 11 are laid horizontally.

[0052] As shown in the figure, Figure 3 The rolling limiting device 31 comprises a shield support body 312 abutting against the body of the shield main machine 2, a walking wheel pair 313 fixedly arranged at the lower end of the shield support body 312, and a lateral limiting oil cylinder 314 with one end fixedly arranged on the side wall of the shield support body 312. The arc-shaped groove 311 is arranged on the shield support body 312, the walking wheel pair 313 abuts against the track device 1 and can roll on the track device 1, so as to move the rolling limiting device 31, and the other end of the lateral limiting oil cylinder 314 abuts against the lateral tunnel face.

[0053] The pushing device 4 comprises a track clamping device 41 and a pushing hydraulic oil cylinder 42. The track clamping device 41 is fixedly arranged on the steel rail 11 by clamping the steel rail. One end of the pushing hydraulic oil cylinder 42 abuts against the track clamping device 41, and the other end of the pushing hydraulic oil cylinder 42 abuts against the anti-rolling device 3, so as to push the anti-rolling device 3 to move.

[0054] The fixed end of the lateral limiting oil cylinder 314 is fixedly arranged on the shield support body 312, and the extending end of the lateral limiting oil cylinder 314 abuts against the lateral tunnel face.

[0055] A rubber plate 5 is arranged between the other end of the lateral limiting oil cylinder 314 and the lateral tunnel face.

[0056] In the above embodiment, the rubber plate 5 is installed on the end of the lateral limiting oil cylinder 314 in contact with the lateral tunnel face through bolt connection, so as to prevent damage or position movement caused by the collision between the lateral limiting oil cylinder 314 and the lateral tunnel face.

[0057] The oblique support 6 is arranged between the fixed end of the lateral limiting oil cylinder 314 and the side wall of the shield support body 312;

[0058] In the above embodiment, one side of the oblique support 6 is connected with the lateral limiting oil cylinder 314 through a flange, and the other side of the oblique support 6 is welded with the shield support body 312, thereby supporting the lateral limiting oil cylinder 314;

[0059] The oblique support 6 is formed by welding a plurality of steel plates.

[0060] The other end of the pushing hydraulic oil cylinder 42 is arranged between the square block 43 and the anti-rolling device 3.

[0061] After the shield main machine 2 is received by the receiving base, the shield main machine 2 is translated to the center line of the tunnel in the mine section construction section, the rolling limiting device 31 is connected on both sides of the middle shield and the front shield, the shield main machine 2 is pushed to the mine section track, the rail clamping device 41 of the pushing device 4 is installed on the track behind the middle shield, the pushing hydraulic oil cylinder 42 is controlled to push forward by the hydraulic pump station, the extension length of the lateral limiting oil cylinder 314 on both sides of the anti-rolling device 3 is adjusted while the pushing is empty, so that the distance with the side surface of the tunnel face is kept at 10mm-15mm, the passive anti-rolling is realized, and the “jumping out of the track” situation is prevented; the walking direction on the steel rail 11 can also be finely adjusted when the shield main machine 2 has the “jumping out of the track” or the track deviation situation, so that the passive defense type anti-rolling and the active adjustment function can be realized.

[0062] According to the positioning size of the walking wheel pair 313 on both sides, the steel rail 11 is laid and reinforced in the mine section, the shield main machine 2 is pushed forward from the receiving base until the walking wheel pair 313 in the rolling limiting device 31 of the middle shield and the front shield contacts and fits the steel rail 11, after the walking wheel pair 313 is on the steel rail 11, the thrust hydraulic oil cylinder 42 contacts the walking wheel pair 313 in the anti-rolling device 3, a corresponding height of square wood blocks 43 are placed between the thrust hydraulic oil cylinder 42 and the steel rail 11, the track clamping device 41 behind the thrust hydraulic oil cylinder 42 is fitted, the track clamping device 41 and the steel rail 11 are clamped by using the hydraulic pump station, then the extension length of the lateral limiting oil cylinder 314 is adjusted according to the distance between the lateral limiting oil cylinder 314 and the working face to meet the requirements; the thrust hydraulic oil cylinder 42 is extended by using the hydraulic pump station, and then the shield main machine 2 is jacked to walk on the steel rail 11, the fitting condition of the walking wheel pair 313 and the steel rail 11 and the distance between the lateral limiting oil cylinder 314 and the working face are observed at all times, and timely adjustment is made, when the thrust hydraulic oil cylinder 42 is completely extended, the shield main machine 2 completes a cycle of empty pushing, the thrust hydraulic oil cylinder 42 is retracted, and the positions of the square wood blocks 43 and the track clamping device 41 are adjusted, and after being fixed, the next cycle of empty pushing is continued.

[0063] The application method of the shield main machine empty pushing walking anti-rolling device comprises the following steps:

[0064] Step 1, a set of shield support bodies are welded on the middle shield and the front shield of the shield main machine, wherein the set of shield support bodies comprises two shield support bodies, and the two shield support bodies are located on both sides of the same position of the shield main machine;

[0065] Step 2, the walking wheel pair and the lateral limiting oil cylinder are connected with the shield support bodies, and the lateral limiting oil cylinder and the inclined support member are fixedly connected;

[0066] Step 3, two steel rails are laid in the mine section tunnel according to the positioning size of the walking wheel pair, and the two steel rails are fixedly connected with the ground;

[0067] Step 4, the shield main machine is pushed forward from the receiving base, and the walking wheel pair is placed on the steel rail;

[0068] Step 5, a thrust device is installed on the steel rail behind the middle shield walking device and abuts against the walking wheel pair;

[0069] Step 6, a counterforce is provided by the track clamping device of the thrust device, the walking wheel pair is pushed forward by operating the thrust hydraulic oil cylinder, and the distance between the lateral limiting oil cylinder and the side working face is adjusted;

[0070] Step 7, the maximum extension length of the pushing hydraulic cylinder of the pushing device is one empty pushing cycle, after the cycle is finished, the position of the track clamping pushing device is adjusted, and the next cycle work is continued;

[0071] In step 7, before the next cycle work is continued, the welding condition of the shield support body and the shield main machine, the connection condition of the walking wheel pair and the lateral limiting oil cylinder with the shield support body, the connection condition of the lateral limiting oil cylinder and the inclined support, the stability condition of the two steel rails and the distance between the lateral limiting oil cylinder and the side working face are checked.

[0072] The present application is not limited to the above-mentioned embodiments, the above-mentioned embodiments and descriptions are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims.

Claims

1. A device for preventing rollover during the empty pushing of a tunnel boring machine, characterized in that, The utility model relates to a tunneling machine's track device and the tunneling machine's track device, including: Track device, fixedly arranged at the bottom end of the shield mainframe; Anti-rolling device, movably arranged on the track device, the shield mainframe is arranged on the anti-rolling device to move with the anti-rolling device, the anti-rolling device includes the rolling limiting device that abuts at the both sides of the bottom end of the shield mainframe, the rolling limiting device is equipped with the arc-shaped groove that is attached to the shield mainframe; Pusher device, fixedly arranged on the track device, the pusher device's top end is used for pushing the anti-rolling device to move; The rolling limiting device includes the shield support body that abuts to the shield mainframe body, the walking wheel pair that is fixedly arranged at the lower end of the shield support body, one end is fixedly arranged on the lateral limiting oil cylinder of the side wall of the shield support body, the arc-shaped groove is arranged on the shield support body, the walking wheel pair abuts to the track device and can roll on the track device to make the rolling limiting device move, the other end of the lateral limiting oil cylinder abuts to the lateral tunnel face; The pusher device includes the track clamping device and the push hydraulic oil cylinder, the track clamping device is fixedly arranged on the steel rail by the way of clamping the steel rail, one end of the push hydraulic oil cylinder abuts to the track clamping device, the other end of the push hydraulic oil cylinder abuts to the anti-rolling device to push the anti-rolling device to move; The fixed end of the lateral limiting oil cylinder is fixedly arranged on the shield support body, and the extending end of the lateral limiting oil cylinder abuts to the lateral tunnel face; The other end of the lateral limiting oil cylinder and the lateral tunnel face are provided with rubber plates; The fixed end of the lateral limiting oil cylinder and the side wall of the shield support body are provided with inclined struts, and the inclined struts are formed by welding a plurality of steel plates; The other end of the push hydraulic oil cylinder and the anti-rolling device are provided with square timbers.

2. The anti-rolling device for walking of a shield main machine with empty thrust according to claim 1, characterized in that, The track device includes two steel rails arranged side by side, and the two steel rails are fixed to the lower end of the shield mainframe.

3. The application method of the anti-rolling device for the shield main machine to walk in the empty pushing mode, applied to the anti-rolling device for the shield main machine to walk in the empty pushing mode according to any one of claims 1 to 2, characterized in that, The utility model relates to a tunneling machine's track device and the tunneling machine's track device, including: Step 1, a group of shield support bodies are welded on the middle shield and the front shield of the shield mainframe respectively, wherein the group of shield support bodies includes two shield support bodies located on both sides of the same position of the shield mainframe; Step 2, connect the walking wheel pair and the lateral limiting oil cylinder with the shield support body, and fixedly connect the lateral limiting oil cylinder and the inclined strut; Step 3, in the mine section tunnel, two steel rails are laid according to the positioning size of the walking wheel pair, and the two steel rails are fixed firmly to the ground; Step 4, push the shield mainframe forward from the receiving base so that the walking wheel pair is on the steel rail; Step 5, install the pusher device on the steel rail behind the middle shield walking device and abut to the walking wheel pair; Step 6, provide counterforce through the track clamping device of the pusher device, operate the push hydraulic oil cylinder to push the walking wheel pair forward, and adjust the distance between the lateral limiting oil cylinder and the lateral tunnel face; Step 7, the maximum extension length of the device push hydraulic oil cylinder of the pusher device is one empty pushing cycle, after the cycle is finished, adjust the position of the track clamping pushing device, and continue the next cycle work.

4. The application method of the anti-rolling device for the shield main machine empty pushing walking according to claim 3, characterized in that, In step 7, before continuing the next cycle, check the welding condition of the shield support body and the shield main machine, the connection condition of the walking wheel pair and the lateral limiting oil cylinder with the shield support body, the connection condition of the lateral limiting oil cylinder and the inclined strut, the stability condition of the two steel rails, and the distance between the lateral limiting oil cylinder and the side working face.

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