Brackets used in mobile reaction frames

Abstract

This utility model discloses a bracket for a mobile reaction frame, belonging to the field of tunnel boring machine (TBM) technology. It includes a bracket body, a mobile reaction frame, and a TBM body. The bracket body has several evenly distributed positioning holes. The mobile reaction frame is connected to the TBM body. The bottom of the mobile reaction frame is equipped with a first positioning device and a second positioning device that cooperate with the positioning holes to allow the mobile reaction frame to move and be positioned. Reaction frame tracks are provided on both sides of the bracket body. The bottom of the mobile reaction frame is connected to the reaction frame tracks via wheels. This utility model allows the mobile reaction frame to move back and forth on the reaction frame tracks via the wheels. If it is necessary to fix the mobile reaction frame, two positioning devices are required to cooperate with the positioning holes to fix the mobile reaction frame to the bracket body. This utility model allows for easy adjustment of the TBM position, provides stable positioning, and is simple to operate, greatly increasing the possibility of completion within the project timeline.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel boring machine technology, and more specifically, relates to a bracket applied to a mobile reaction frame. Background Technology

[0002] A tunnel boring machine (TBM) is a piece of equipment mainly used for excavating tunnels. When installing a TBM in the launching shaft, a support frame is installed before launching to assist in the installation and positioning of the TBM.

[0003] Currently, brackets are used for both the launch and reception of ultra-large diameter tunnel boring machines (TBMs). The TBM is connected to a mobile reaction frame. The mobile TBM needs to push the mobile reaction frame to move it on the bracket. However, when it moves to the designated position, it is fixed by steel sections. This fixing method is very time-consuming and may damage the structure. If the position of the TBM needs to be adjusted multiple times, the steel sections need to be welded repeatedly, which leads to an extension of the construction period. Utility Model Content

[0004] The main objective of this invention is to provide a bracket for use in mobile reaction frames to solve the problems mentioned above in the background.

[0005] According to a first aspect of the present invention, a bracket for a mobile reaction frame is provided, comprising a bracket body, a mobile reaction frame, and a tunnel boring machine body. The bracket body is provided with a plurality of evenly distributed positioning holes. The mobile reaction frame is connected to the tunnel boring machine body. The bottom of the mobile reaction frame is provided with a first positioning device and a second positioning device that cooperate with the positioning holes to enable the mobile reaction frame to move and be positioned. Reaction frame tracks are provided on both sides of the bracket body. The bottom of the mobile reaction frame is connected to the reaction frame tracks by wheels.

[0006] In a specific embodiment of this utility model, the first positioning device includes a first hydraulic cylinder, a second hydraulic cylinder, and a positioning box. The first hydraulic cylinder is horizontally arranged on both sides of the bottom of the movable reaction frame. The telescopic end of the first hydraulic cylinder is connected to one side of the positioning box. The second hydraulic cylinder is vertically arranged on the top of the positioning box. The telescopic end of the second hydraulic cylinder is fixedly connected to a limit post. The limit post can be movably inserted into the positioning hole. Rollers are provided on both sides of the bottom of the positioning box.

[0007] In a specific embodiment of this utility model, the bracket body is provided with a first positioning device track connected to the roller.

[0008] In a specific embodiment of this utility model, a first shield machine track and a second shield machine track are symmetrically arranged on the bracket body. The first shield machine track is arranged on both sides of the top of the bracket body, and the second shield machine track is arranged on both sides of the bottom of the bracket body.

[0009] In a specific embodiment of this utility model, the first shield machine track is provided with a heightening component to facilitate the tunnel trolley entering the mobile reaction frame.

[0010] In a specific embodiment of this utility model, the bracket body is provided with a plurality of evenly distributed mounting grooves, the top of the mounting groove is detachably mounted with a mounting base, the middle of the mounting base is detachably mounted with a positioning column, and the positioning hole is provided on the positioning column.

[0011] In a specific embodiment of this utility model, the second positioning device includes a connecting seat and a third hydraulic cylinder. The third hydraulic cylinder is connected to the bottom end of the movable reaction frame through the connecting seat, and the telescopic end of the third hydraulic cylinder is provided with a third limiting post that cooperates with the positioning hole.

[0012] In a specific embodiment of this utility model, a groove space for pre-reserved construction is provided in the middle of the bracket body.

[0013] One of the above-described technical solutions of this utility model has at least one of the following advantages or beneficial effects:

[0014] This bracket, applied to a mobile reaction frame, allows the mobile reaction frame to move back and forth on the reaction frame track via wheels. If it is necessary to fix the mobile reaction frame, the first positioning device and the second positioning device need to be connected with the positioning hole to fix the mobile reaction frame to the bracket body. This utility model can adjust the position of the tunnel boring machine at will, and the positioning is stable and the operation is simple, which greatly improves the possibility of completing the project within the time limit. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a schematic diagram of the structure of a bracket applied to a mobile reaction frame in one embodiment of the present invention;

[0017] Figure 2 This is a partially enlarged view of the second positioning device in one embodiment of the present invention;

[0018] Figure 3 This is a cross-sectional view of the first positioning device in one embodiment of the present invention. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" and "second" may explicitly or implicitly include one or more features.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection or a connection that can communicate with each other; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements, an indirect connection, or an interaction between two elements.

[0024] The following disclosure provides many different implementation methods or examples for different solutions to implement this utility model.

[0025] Reference Figures 1 to 3As shown, a bracket for a mobile reaction frame is provided, including a bracket body 1, a mobile reaction frame 2, and a tunnel boring machine body 3. The bracket body 1 is provided with a number of evenly distributed positioning holes 11. The mobile reaction frame 2 is connected to the tunnel boring machine body 3. The bottom of the mobile reaction frame 2 is provided with a first positioning device 5 and a second positioning device 6 that cooperate with the positioning holes 11 to enable the mobile reaction frame 2 to move and be positioned. Reaction frame tracks 4 are provided on both sides of the bracket body 1. The bottom of the mobile reaction frame 2 is connected to the reaction frame tracks 4 by providing wheels 21.

[0026] In this embodiment, the bracket applied to the mobile reaction frame allows the mobile reaction frame 2 to move back and forth on the reaction frame track 4 via wheels 21. If it is necessary to fix the mobile reaction frame 2, the first positioning device 5 and the second positioning device 6 need to be connected with the positioning hole 11 to fix the mobile reaction frame 2 on the bracket body 1. This utility model can adjust the position of the tunnel boring machine at will, and the positioning is stable and the operation is simple, which greatly improves the possibility of completing the project within the time limit.

[0027] In one embodiment of this utility model, the first positioning device 5 includes a first hydraulic cylinder 51, a second hydraulic cylinder 52, and a positioning box 53. The first hydraulic cylinder 51 is horizontally arranged on both sides of the bottom of the movable reaction frame 2. The telescopic end of the first hydraulic cylinder 51 is connected to one side of the positioning box 53. The second hydraulic cylinder 52 is vertically arranged on the top of the positioning box 53. The telescopic end of the second hydraulic cylinder 52 is fixedly connected to a limiting post 54. The limiting post 54 can be movably inserted into the positioning hole 11. Rollers 55 are provided on both sides of the bottom of the positioning box 53.

[0028] Furthermore, the bracket body 1 is provided with a first positioning device track 56 connected to the roller 55.

[0029] In this embodiment, the first positioning device 5 is equipped with two first hydraulic cylinders 51, and their telescopic ends are connected to one side of the positioning box 53. The positioning box 53 is pushed to move, so that the roller 55 moves on the track 56 of the first positioning device. When it moves to the designated positioning hole 11, the second hydraulic cylinder 52 is activated, so that the limiting post 54 is inserted into the corresponding positioning hole 11 and fixed. If it is necessary to move the shield machine body 3 again, the limiting post 54 is retracted before moving. The operation is simple and convenient, and can save a lot of unnecessary time.

[0030] In one embodiment of this utility model, a first shield machine track 13 and a second shield machine track 14 are symmetrically arranged on the bracket body 1. The first shield machine track 13 is arranged on both sides of the top of the bracket body 1, and the second shield machine track 14 is arranged on both sides of the bottom of the bracket body 1. The first shield machine track 13 and the second shield machine track 14 provide sliding tracks for the shield machine body 3 to prevent it from being damaged during movement, and at the same time facilitate the movement of the entire device.

[0031] Furthermore, the first shield machine track 13 is equipped with a heightening component 15 to facilitate the tunnel trolley entering the mobile reaction frame 2. After the reaction frame moves forward, there is a height difference between the bracket and the wheels of the tunnel trolley. The heightening component 15 fills this gap, and the wheels of the tunnel trolley can travel on the heightening component 15 and finally enter the reaction frame and the tunnel.

[0032] In one embodiment of this utility model, a plurality of evenly distributed mounting grooves 16 are provided on the bracket body 1. A mounting base 17 is detachably mounted on the top of the mounting groove 16. A positioning column 17 is detachably mounted on the middle of the mounting base 17. A positioning hole 11 is provided on the positioning column 17. A certain distance is provided between the bottom of the positioning column 17 and the bottom of the mounting groove 16, which is reserved for the insertion of the limiting column 54 to avoid collision with the bottom of the mounting groove 16 and damage.

[0033] In one embodiment of this utility model, the second positioning device 6 includes a connecting seat 61 and a third hydraulic cylinder 62. The third hydraulic cylinder 62 is connected to the bottom end of the movable reaction frame 2 through the connecting seat 61. The telescopic end of the third hydraulic cylinder 62 is provided with a third limiting post that cooperates with the positioning hole 11. The second positioning device 6 moves with the movable reaction frame 2, while the first positioning device 5 can move forward through the first hydraulic cylinder 51 and be inserted into the front positioning hole 11. The second positioning device 6 can make the movable reaction frame 2 more firmly fixed.

[0034] In one embodiment of this utility model, a recessed space 7 for construction is provided in the middle of the bracket body 1, which is reserved for the welder to weld.

[0035] In one embodiment of this utility model, a backstop device 8 is provided at the bottom of the shield machine body 3. The backstop device 8 includes a fixed base and a fourth hydraulic cylinder. The fourth hydraulic cylinder is fixedly connected to the shield machine body 3 through the fixed base. The telescopic end of the fourth hydraulic cylinder is fixedly connected to a fourth limiting post. The fourth limiting post can be inserted into the positioning hole 11 for positioning and fixing. The backstop device 8 can also be limited and fixed. The backstop device 8 is welded to the tail structure of the shield machine body 3, and a fourth hydraulic cylinder with a diameter of DN200 is provided. It is inserted into the positioning hole 11 of the bottom bracket to provide reaction force and prevent the shield machine from retreating during the translation of the reaction frame, which could lead to disasters such as water and sand inrush, surface subsidence and collapse.

[0036] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A bracket applied to a mobile counterforce frame, comprising a bracket body (1), a mobile counterforce frame (2) and a shield machine body (3), characterized in that, The bracket body (1) is provided with a number of evenly distributed positioning holes (11). The mobile reaction frame (2) is connected to the shield machine body (3). The bottom of the mobile reaction frame (2) is provided with a first positioning device (5) and a second positioning device (6) that cooperate with the positioning holes (11) so that the mobile reaction frame (2) can move and be positioned. The two sides of the bracket body (1) are provided with reaction frame tracks (4). The bottom of the mobile reaction frame (2) is connected to the reaction frame tracks (4) by setting wheels (21).

2. The carriage for a mobile reaction frame of claim 1, wherein, The first positioning device (5) includes a first hydraulic cylinder (51), a second hydraulic cylinder (52), and a positioning box (53). The first hydraulic cylinder (51) is horizontally arranged on both sides of the bottom of the movable reaction frame (2). The telescopic end of the first hydraulic cylinder (51) is connected to one side of the positioning box (53). The second hydraulic cylinder (52) is vertically arranged on the top of the positioning box (53). The telescopic end of the second hydraulic cylinder (52) is fixedly connected to a limiting post (54). The limiting post (54) can be movably inserted into the positioning hole (11). Rollers (55) are provided on both sides of the bottom of the positioning box (53).

3. The carriage for a mobile reaction frame of claim 2, wherein, The bracket body (1) is provided with a first positioning device track (56) connected to the roller (55).

4. The carriage for a mobile reaction frame of claim 1, wherein, The bracket body (1) is symmetrically provided with a first shield machine track (13) and a second shield machine track (14). The first shield machine track (13) is provided on both sides of the top of the bracket body (1), and the second shield machine track (14) is provided on both sides of the bottom of the bracket body (1).

5. The carriage for a mobile reaction frame of claim 4, wherein, The first shield machine track (13) is equipped with a heightening component (15) to facilitate the tunnel trolley to enter the mobile reaction frame (2).

6. The carriage for a mobile reaction frame of claim 1, wherein, The bracket body (1) has several evenly distributed mounting grooves (16). The top of the mounting groove (16) is detachably mounted with a mounting base (17). The middle part of the mounting base (17) is detachably mounted with a positioning column (18). The positioning hole (11) is provided on the positioning column (18).

7. The carriage for a mobile reaction frame of claim 1, wherein, The second positioning device (6) includes a connecting seat (61) and a third oil cylinder (62). The third oil cylinder (62) is connected to the bottom end of the movable reaction frame (2) through the connecting seat (61). The telescopic end of the third oil cylinder (62) is provided with a third limiting post that cooperates with the positioning hole (11).

8. The carriage for a mobile reaction frame of claim 1, wherein, The bracket body (1) has a reserved construction groove space (7) in the middle.

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