Rapid mounting and dismounting auxiliary device for spiral conveyor of shield tunneling machine in tunnel

Abstract

The invention relates to the technical field of tunnel construction equipment, in particular to a quick mounting and dismounting auxiliary device for a spiral conveyor of a shield tunneling machine in a tunnel. The quick mounting and dismounting auxiliary device comprises a plurality of H-shaped steel girders, and the same I-shaped steel sliding rail is fixedly connected between a pair of adjacent H-shaped steel girders; the device is provided with a combined door-shaped frame with the function of preventing front-back overturning and left-right overturning, the stability of the spiral conveyor in the mounting, dismounting and hoisting processes is remarkably improved, most structures on the device can be welded and assembled on the ground, fire operation in a hole is reduced, the construction safety is further guaranteed, the electric hoist is used in cooperation with the chain block, and the construction efficiency is improved. The screw conveyor is more convenient to adjust and move, the mounting and dismounting time of the screw conveyor is greatly shortened, and the overall construction efficiency is improved, so that the problems that in the prior art, the screw conveyor is low in mounting and dismounting operation efficiency, difficult to operate, poor in safety and the like are solved through technical innovation, and the screw conveyor has the advantages of being efficient, safe, high in adaptability and the like. The method can be widely applied to the field of shield construction.

Description

Technical Field

[0001] The invention relates to a quick installation and disassembly auxiliary device for a screw conveyor of a tunnel boring machine, and in particular to a quick installation and disassembly auxiliary device for a screw conveyor of a tunnel boring machine used in the field of tunnel construction equipment. Background Art

[0002] A screw conveyor is a mechanical device that uses a motor to drive the rotation of a screw shaft and pushes materials through spiral blades to achieve continuous conveying. It is commonly known as an auger. Its core structure includes a screw shaft, a material trough and a drive device. The rotation of the spiral blades pushes the material in a sealed or open trough. The main functions of the screw conveyor are: it can realize horizontal, inclined and vertical material transportation, adapt to the spatial layout requirements of different production scenarios and the sealing structure to effectively prevent dust leakage. It is suitable for the transportation of powdered and granular materials (such as cement and grain) with high environmental protection requirements. In recent years, with the rapid development of subway construction in my country, subway interval tunnels have gradually shown the characteristics of long distances, complex hydrogeological conditions and diverse construction environments. During the construction of the earth pressure shield, the screw conveyor may need to be disassembled and installed in the tunnel in certain cases, which mainly occurs in the following scenarios:

[0003] 1. EPB / TBM dual-mode shield machine mode conversion: When the shield machine switches from hard rock tunneling mode (TBM) to earth pressure balance mode (EPB), the screw conveyor needs to be reinstalled; conversely, when switching from EPB mode back to TBM mode, the screw conveyor needs to be disassembled; 2. EPB shield machine disassembly in the tunnel: Under certain special construction conditions, the shield machine needs to be disassembled in the tunnel. For example, when the shield machine reaches the receiving end tunnel portal, if the tunnel portal cannot be broken due to external conditions (such as connecting to an existing operating subway), and the shell needs to be abandoned and the machine needs to be disassembled in the tunnel, then the screw conveyor needs to be disassembled to complete the disassembly operation; 3. Screw conveyor failure or wear: The screw conveyor may wear, blockage or mechanical failure after long-term operation and needs to be disassembled for repair or replacement.

[0004] The existing installation and disassembly of screw conveyors in tunnels requires multiple replacements of lifting points and welding of lifting lugs, involving a large amount of hot work and cutting operations. Furthermore, the space inside the tunnel is small, making operation extremely inconvenient and posing a serious threat to the safety of construction workers. During the lifting process, equipment shaking and inaccurate positioning can easily damage the tunnel segments, resulting in low overall installation and disassembly efficiency. Summary of the Invention

[0005] In view of the above-mentioned existing technologies, the technical problem to be solved by the present invention is that the installation and disassembly of the existing screw conveyor in the tunnel requires multiple replacement of the lifting points and welding of the lifting ears, involving a large amount of hot work and cutting operations, and the space in the tunnel is small, making the operation extremely inconvenient.

[0006] In order to solve the above problems, the present invention provides a quick installation and disassembly auxiliary device for a screw conveyor of a shield machine in a tunnel, comprising multiple H-steel main beams, a pair of adjacent H-steel main beams fixedly connected with the same I-steel slide rail, the lower ends of the pair of I-steel slide rails are slidably connected with electric hoists, a screw conveyor is suspended at the lower end of the electric hoist, the lower end of the H-steel main beam is fixedly connected with a pair of H-steel portal frames, the lower ends of multiple H-steel portal frames are fixedly connected with the same H-steel foundation beam, the lower end of the H-steel main beam is fixedly connected with a pair of lifting ears, and a hand hoist is hung on the lifting ears.

[0007] In the above-mentioned tunnel shield machine screw conveyor rapid installation and disassembly auxiliary device, this device has a combined portal frame with the function of preventing forward and backward overturning and left and right overturning, which significantly improves the stability of the screw conveyor during the installation and lifting process, and most of its structures can be welded and assembled on the ground, reducing the open flame operation in the tunnel, further ensuring construction safety, and simplifying the installation process in the tunnel. Through the coordinated use of electric hoists and hand hoists, the adjustment and movement of the screw conveyor are made easier, the installation and disassembly time of the screw conveyor is greatly reduced, and the overall construction efficiency is improved. Therefore, the present invention solves the problems of low efficiency, difficult operation, and poor safety of the screw conveyor installation and disassembly in the prior art through technological innovation. It has the advantages of high efficiency, safety, and strong adaptability, and can be widely used in the field of shield construction.

[0008] As a further improvement of the present application, the side ends of the H-shaped steel portal frame are fixedly connected to H-shaped steel diagonal braces, and the lower ends of the H-shaped steel diagonal braces are fixedly connected to the upper ends of the H-shaped steel foundation beams.

[0009] As another improvement of the present application, in the horizontal direction, a pair of H-shaped steel portal frames are movably inserted into the inner parts of one end close to each other, the upper end of the mounting seat is fixedly connected to an electric push rod 1, the telescopic end of the electric push rod 1 is fixedly connected to a lifting seat, the side end of the lifting seat is fixedly connected to an electric push rod 2, the telescopic end of the electric push rod 2 is fixedly connected to a motor, a reinforcement ring 1 is fixedly connected to the output end of the motor, a telescopic groove is provided on the inner wall of the reinforcement ring 1, an electric push rod 3 is fixedly connected to the inner wall of the telescopic groove, and the telescopic end of the electric push rod 3 is fixedly connected to the reinforcement ring 2.

[0010] As another improved supplement of the present application, in the initial state, the side end of the reinforcement ring 2 is flush with the inner wall of the reinforcement ring 1, and there is a gap between the end where the reinforcement ring 2 and the electric push rod 3 are connected and the inner wall of the telescopic slot.

[0011] As another improved supplement to the present application, a fixing groove is opened on the inner wall of the reinforcement ring 1 and the reinforcement ring 2, and the inner wall of the fixing groove is fixedly connected with the reinforcement rubber. The inner walls of the reinforcement ring 1 and the reinforcement ring 2 are flush with the side ends of the reinforcement rubber.

[0012] As another improved supplement to the present application, a pair of rectangular grooves are fixedly connected to the upper end of the mounting seat, a spring sheet is fixedly connected to the inner side wall of the rectangular groove, the side end of the spring sheet is fixedly connected to the mounting block, and a pair of limiting grooves that are movably inserted with the mounting block are opened on the inner wall of the H-shaped steel portal frame, the upper end of the mounting block is flush with the upper end of the mounting seat, and one end of the rectangular groove is connected to the side end of the mounting seat.

[0013] As another improved supplement to the present application, a pair of sliding grooves are opened on the inner wall of the rectangular groove, and a pair of side ends of the mounting block are fixedly connected with sliders that are slidably connected to the sliding grooves, and one end of the sliding groove is not connected to the side end of the rectangular groove.

[0014] As another improved supplement of the present application, a pull-out tube is fixedly connected to the upper end of the mounting block, the outer end of the pull-out tube is engraved with anti-slip grooves, and there is a gap between the pull-out tube and the inner wall of the H-shaped steel portal frame.

[0015] 1. This device has a combined portal frame with anti-front and rear overturning and left and right overturning functions, which significantly improves the stability of the screw conveyor during installation and lifting, and most of its structures can be welded and assembled on the ground, reducing open fire operations in the tunnel, further ensuring construction safety, and simplifying the installation process in the tunnel. The coordinated use of electric hoists and hand hoists makes the adjustment and movement of the screw conveyor easier, greatly reducing the installation and removal time of the screw conveyor, and improving the overall construction efficiency. The combination of H-shaped steel portal frames and I-beam slide rails can be adjusted according to specific construction conditions. At the same time, this device is entirely welded with standard specification steel, which reduces manufacturing costs. The materials are easy to obtain and can be reused. Therefore, the present invention solves the problems of low efficiency, difficult operation, and poor safety of screw conveyor installation and removal in the prior art through technological innovation. It has the advantages of high efficiency, safety, and strong adaptability, and can be widely used in the field of shield construction.

[0016] 2. When the present invention is in use, the height and angle of the reinforcement ring 1 are adjusted according to the position of the screw conveyor. After adjusting the height and angle, it is put on the screw conveyor to limit the screw conveyor so that it is not easy to shake during the transfer process, thereby ensuring the smooth transfer of the screw conveyor. At the same time, the reinforcement ring 2 can be pushed out of the telescopic groove and used to limit and reinforce screw conveyors with different outer diameters, thereby improving the scope of application of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the overall structure of the first and second embodiments of the present application;

[0018] Figure 2 This is a top view of the screw conveyor according to the first embodiment of the present application;

[0019] Figure 3This is a front view of the screw conveyor according to the first embodiment of the present application;

[0020] Figure 4 This is a structural diagram of a reinforcement ring according to a second embodiment of the present application;

[0021] Figure 5 This is a schematic diagram of the lifting seat structure of the second embodiment of this application;

[0022] Figure 6 This is a structural diagram of the reinforcement ring 2 according to the second embodiment of the present application;

[0023] Figure 7 This is a schematic diagram of the movement of the reinforcement ring 2 according to the second embodiment of the present application;

[0024] Figure 8 This is a schematic diagram of the mounting base structure of the second embodiment of the present application.

[0025] Description of the numbers in the figure:

[0026] 1. H-beam main beam; 2. I-beam slide rail; 3. Electric hoist; 4. Screw conveyor; 5. H-beam portal frame; 6. H-beam foundation beam; 7. Lifting lug; 8. Hand chain hoist; 9. H-beam diagonal brace; 10. Mounting seat; 11. Electric push rod 1; 12. Lifting seat; 13. Electric push rod 2; 14. Motor; 15. Reinforcement ring 1; 16. Electric push rod 3; 17. Reinforcement ring 2; 18. Rectangular groove; 19. Spring leaf; 20. Mounting block; 21. Slide groove; 22. Slider. DETAILED DESCRIPTION

[0027] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0028] The first implementation method:

[0029] Figure 1-3 The present invention shows a quick installation and disassembly auxiliary device for a screw conveyor of a shield machine in a tunnel, comprising a plurality of H-shaped steel main beams 1, a pair of adjacent H-shaped steel main beams 1 being fixedly connected to a common I-shaped steel slide rail 2, the lower ends of the pair of I-shaped steel slide rails 2 being slidably connected to an electric hoist 3, a screw conveyor 4 being suspended from the lower end of the electric hoist 3, a pair of H-shaped steel portal frames 5 being fixedly connected to the lower ends of the H-shaped steel main beams 1, the lower ends of the plurality of H-shaped steel portal frames 5 being fixedly connected to a common H-shaped steel base beam 6, a pair of lifting lugs 7 being fixedly connected to the lower ends of the H-shaped steel main beams 1, and a hand chain hoist 8 being suspended from the lifting lugs 7;

[0030] The side end of the H-steel portal frame 5 is fixedly connected with an H-steel diagonal brace 9, and the lower end of the H-steel diagonal brace 9 is fixedly connected to the upper end of the H-steel foundation beam 6. This device is entirely assembled by welding standard steel sections. The H-steel specification is HW250*250, and the I-steel specification is I20c.

[0031] The present invention is divided into the following steps when used:

[0032] Step 1: First, remove the shield machine trolley rails (the battery car rails remain stationary), weld and fix the H-shaped steel foundation beam 6 to the bottom sleeper in the tunnel, and the remaining upper structure of the device can be hoisted down the well after the overall welding and assembly on the ground is completed, and transported to the designated construction area by the battery car, thereby reducing hot work in the tunnel and ensuring construction safety;

[0033] Step 2: After the device is installed in place, the screw conveyor 4 is hoisted down the well and transported to the corresponding position by a battery car. Figure 2 As shown;

[0034] Use a high-strength synthetic fiber sling to support the screw conveyor 4 in a slinging manner (all three H-shaped steel portal frames 5 are operated according to this step). The two ends of the sling are connected to the hand chain hoist 8 through hooks (the specifications of the sling are matched according to the size and weight of the conveyor to ensure sufficient load-bearing capacity and stability);

[0035] The lifting lugs on the screw conveyor 4 are connected to the two electric hoists 3 through the hooks. The construction workers lift the hand hoist 8 and the electric hoist 3 and adjust the screw conveyor 4 to a suitable installation angle, such as Figure 3 As shown, the electric hoist 3 is then controlled to move on the I-beam slide rail 2 to horizontally move the screw conveyor 4 to the designated installation position. At this point, the main installation steps of the screw conveyor 4 are completed.

[0036] In summary, the present device has a combined portal frame with the function of preventing forward and backward overturning and left and right overturning, which significantly improves the stability of the screw conveyor 4 during the installation and lifting process, and most of its structures can be welded and assembled on the ground, reducing the open flame operation in the tunnel, further ensuring the construction safety, and simplifying the installation process in the tunnel. Through the coordinated use of the electric hoist 3 and the hand hoist 8, the adjustment and movement of the screw conveyor 4 are made easier, which greatly reduces the installation and removal time of the screw conveyor 4 and improves the overall construction efficiency. The present device has a simple structure and flexible design. The combination of the H-shaped steel portal frame 5 and the I-beam slide rail 2 can be adjusted according to specific construction conditions. At the same time, the present device is entirely welded with standard specification steel, which reduces the manufacturing cost. The materials are easy to obtain and can be reused. Therefore, the present invention solves the problems of low installation and removal efficiency, difficult operation, and poor safety of the screw conveyor 4 in the prior art through technological innovation. It has the advantages of high efficiency, safety, and strong adaptability, and can be widely used in the field of shield construction.

[0037] The second implementation method:

[0038] This embodiment adds the following structure based on the first embodiment, and the rest of the structure remains the same as the first embodiment, as follows:

[0039] Figure 4-8 It is shown that in the horizontal direction, a pair of H-shaped steel door frames 5 are movably inserted into the inner parts of one end close to each other, and an electric push rod 11 is fixedly connected to the upper end of the mounting seat 10, and a lifting seat 12 is fixedly connected to the telescopic end of the electric push rod 11, and an electric push rod 2 13 is fixedly connected to the side end of the lifting seat 12, and an electric push rod 2 13 is fixedly connected to the telescopic end of the electric push rod 2 13. A motor 14 is fixedly connected to the output end of the motor 14. A reinforcement ring 15 is fixedly connected to the output end of the motor 14. A telescopic groove is provided on the inner wall of the reinforcement ring 15, and an electric push rod 3 16 is fixedly connected to the inner wall of the telescopic groove. A reinforcement ring 2 17 is fixedly connected to the telescopic end of the electric push rod 3 16.

[0040] In the initial state, the side end of the second reinforcement ring 17 is flush with the inner wall of the first reinforcement ring 15, and there is a gap between the end of the second reinforcement ring 17 connected to the electric push rod 3 16 and the inner wall of the telescopic slot. The inner walls of the first reinforcement ring 15 and the second reinforcement ring 17 are both provided with fixing grooves, and the inner walls of the fixing grooves are fixedly connected with reinforcing rubber. The inner walls of the first reinforcement ring 15 and the second reinforcement ring 17 are both flush with the side ends of the reinforcing rubber.

[0041] A pair of rectangular grooves 18 are fixedly connected to the upper end of the mounting seat 10, and a spring piece 19 is fixedly connected to the inner side wall of the rectangular groove 18. The side end of the spring piece 19 is fixedly connected to the mounting block 20. A pair of limiting grooves movably inserted with the mounting block 20 are opened on the inner wall of the H-shaped steel door frame 5. The upper end of the mounting block 20 is flush with the upper end of the mounting seat 10, and one end of the rectangular groove 18 is connected to the side end of the mounting seat 10;

[0042] A pair of slide grooves 21 are formed on the inner side walls of the rectangular groove 18. Slide blocks 22 slidably connected to the slide grooves 21 are fixedly connected to a pair of side ends of the mounting block 20. One end of the slide groove 21 is not connected to the side end of the rectangular groove 18. When the mounting block 20 is moved, it will drive the slide block 22 to move within the slide groove 21. The slide block 22 can prevent the mounting block 20 from moving upward, thereby improving the stability of the mounting block 20 when moving and preventing the mounting block 20 from separating from the mounting base 10.

[0043] The upper end of the mounting block 20 is fixedly connected with a pull-out tube, the outer end of which is engraved with anti-slip grooves, and there is a gap between the pull-out tube and the inner side wall of the H-shaped steel portal frame 5.

[0044] The present invention is divided into the following steps when used:

[0045] Step 1: Installation: Use the pulling tube to pull the installation block 20 so that the end extending from the rectangular groove 18 moves into the rectangular groove 18. During the process of the installation block 20 moving into the rectangular groove 18, one end of the installation block 20 will squeeze the spring piece 19;

[0046] After the mounting block 20 is completely inserted into the rectangular groove 18, the mounting seat 10 is inserted into the interior of the H-shaped steel portal frame 5 so that the side end of the mounting seat 10 is flush with the side end of the H-shaped steel portal frame 5. Then, the external force applied to the mounting block 20 is removed. Under the action of the elastic force of the spring piece 19, it pushes the mounting block 20 so that one end of the mounting block 20 moves into the limiting groove, thereby limiting the mounting seat 10 and installing it in the H-shaped steel portal frame 5.

[0047] Step 2: When in use, start the electric push rod 11, and use the electric push rod 11 to drive the lifting seat 12 and all the mechanisms thereon to move up and down according to the height of the screw conveyor 4, thereby adjusting the height of the reinforcement ring 15 and all the mechanisms thereon;

[0048] After adjusting the height of the reinforcement ring 15, the motor 14 can be started according to the angle suitable for the reinforcement ring 15 to be sleeved on the screw conveyor 4, so that its output end drives the reinforcement ring 15 to rotate, and then the angle of the reinforcement ring 15 is adjusted. After adjusting the angle of the reinforcement ring 15, the electric push rod 2 13 is started to move it toward the screw conveyor 4 until the reinforcement ring 15 is sleeved on the screw conveyor 4. The reinforcement ring 15 is used to limit the screw conveyor 4 to prevent the screw conveyor 4 from shaking during the transfer process, thereby improving the stability of the screw conveyor 4 when being transferred;

[0049] Step 3: When in use, the operator can start the electric push rod 3 16 to push the reinforcement ring 2 17 out of the telescopic slot and combine with ... Figure 7 As shown, the operation in step 2 is then repeated, and the reinforcing ring 2 17 is used to limit the screw conveyors 4 with different outer diameter specifications.

[0050] To sum up, when the present invention is in use, the height and angle of the reinforcement ring 15 are adjusted according to the position of the screw conveyor 4. After adjusting its height and angle, it is put on the screw conveyor 4 to limit the screw conveyor 4, so that it is not easy to shake during the transfer process, thereby ensuring the smooth transfer of the screw conveyor 4. At the same time, the reinforcement ring 2 17 can be pushed out of the telescopic groove, and it can be used to limit and reinforce the screw conveyors 4 with different outer diameters, thereby improving the scope of application of the present device.

[0051] The above-mentioned front, back, left, right, up and down are all based on the Figure 1As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0053] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick installation and disassembly auxiliary device for a screw conveyor of a shield machine in a tunnel, comprising a plurality of H-shaped steel main beams (1), characterized in that: A pair of adjacent H-shaped steel main beams (1) are fixedly connected with the same I-shaped steel slide rail (2); The lower ends of the pair of I-beam slide rails (2) are both slidably connected to an electric hoist (3), and a screw conveyor (4) is suspended at the lower end of the electric hoist (3); The lower ends of the H-shaped steel main beam (1) are fixedly connected to a pair of H-shaped steel portal frames (5), and the lower ends of the plurality of H-shaped steel portal frames (5) are fixedly connected to the same H-shaped steel foundation beam (6); A pair of lifting lugs (7) are fixedly connected to the lower end of the H-shaped steel main beam (1), and a hand hoist (8) is hung on the lifting lugs (7).

2. The quick installation and disassembly auxiliary device for a screw conveyor of a tunnel boring machine according to claim 1, characterized in that: The side ends of the H-shaped steel portal frame (5) are fixedly connected to H-shaped steel diagonal braces (9), and the lower ends of the H-shaped steel diagonal braces (9) are fixedly connected to the upper ends of the H-shaped steel foundation beams (6).

3. The quick installation and disassembly auxiliary device for a screw conveyor of a tunnel boring machine according to claim 2, characterized in that: In the horizontal direction, a pair of H-shaped steel door frames (5) are movably inserted into the inner sides of one end close to each other, the upper end of the mounting seat (10) is fixedly connected to an electric push rod 1 (11), the telescopic end of the electric push rod 1 (11) is fixedly connected to a lifting seat (12), the side end of the lifting seat (12) is fixedly connected to an electric push rod 2 (13), the telescopic end of the electric push rod 2 (13) is fixedly connected to a motor (14), the output end of the motor (14) is fixedly connected to a reinforcement ring 1 (15), the inner wall of the reinforcement ring 1 (15) is provided with a telescopic groove, the inner wall of the telescopic groove is fixedly connected to an electric push rod 3 (16), and the telescopic end of the electric push rod 3 (16) is fixedly connected to a reinforcement ring 2 (17).

4. The quick installation and removal auxiliary device for a screw conveyor of a tunnel boring machine according to claim 3, characterized in that: In the initial state, the side end of the reinforcement ring 2 (17) is flush with the inner wall of the reinforcement ring 1 (15), and there is a gap between the end where the reinforcement ring 2 (17) and the electric push rod 3 (16) are connected and the inner wall of the telescopic slot.

5. The quick installation and disassembly auxiliary device for a screw conveyor of a tunnel boring machine according to claim 4, characterized in that: The inner walls of the reinforcing ring 1 (15) and the reinforcing ring 2 (17) are both provided with fixing grooves, and the inner walls of the fixing grooves are fixedly connected with reinforcing rubber. The inner walls of the reinforcing ring 1 (15) and the reinforcing ring 2 (17) are both flush with the side ends of the reinforcing rubber.

6. The quick installation and removal auxiliary device for a screw conveyor of a tunnel boring machine according to claim 5, characterized in that: The upper end of the mounting seat (10) is fixedly connected to a pair of rectangular grooves (18), the inner side wall of the rectangular groove (18) is fixedly connected to a spring sheet (19), the side end of the spring sheet (19) is fixedly connected to a mounting block (20), and the inner wall of the H-shaped steel door frame (5) is provided with a pair of limit grooves movably inserted with the mounting block (20), the upper end of the mounting block (20) is flush with the upper end of the mounting seat (10), and one end of the rectangular groove (18) is communicated with the side end of the mounting seat (10).

7. The quick installation and disassembly auxiliary device for a screw conveyor of a tunnel boring machine according to claim 6, characterized in that: A pair of slide grooves (21) are provided on the inner side wall of the rectangular groove (18), and a pair of side ends of the mounting block (20) are fixedly connected with sliders (22) that are slidably connected to the slide grooves (21), and one end of the slide groove (21) is not connected to the side end of the rectangular groove (18).

8. The quick installation and disassembly auxiliary device for a screw conveyor of a tunnel boring machine according to claim 7, characterized in that: The upper end of the mounting block (20) is fixedly connected to a drawing tube, the outer end of the drawing tube is engraved with anti-slip grooves, and there is a gap between the drawing tube and the inner side wall of the H-shaped steel portal frame (5).

Images