Shield bottom dragging tool device for inclined shaft TBM stepping
Through the design of the shield tow bottom tooling device with TBM stepping in the inclined shaft, the safety risks and complexity of shield dismantling process in the inclined shaft environment are solved by symmetrical settings and hydraulic drive, combining connecting blocks, patches and reinforcement plates. The configuration problem has achieved more stable and efficient disassembly operation.
Patent Information
- Application Number
- CN202421194194.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-29
AI Technical Summary
In an inclined shaft environment, during the disassembly of the TBM step shield, the equipment is large in size, heavy in weight, and precise operation, which increases the safety risk of temporary fixation and drag, and the configuration is complex, resulting in disassembly and rotation. Working on the site has increased difficulty.
A towing tooling device including a first support block, a second support block, a hydraulic oil tank and a hydraulic oil tank telescopic rod is designed to provide stable support through symmetrical arrangement and hydraulic drive, and through connecting blocks, patches and rib plates Enhance structural strength and simplify installation and operation.
It improves the support effect and service life of the TBM step shield with inclined shaft, reduces safety risks, simplifies the disassembly and transition processes, and ensures the stability and safety of operation.
Smart Images
Figure CN222296218U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of TBM installation, and in particular to a shield bottom dragging tooling device for inclined shaft TBM stepping. Background Art
[0002] The stepping shield of TBM (full-face tunnel boring machine) is an important part of it, which is used to protect the machine and provide support during the excavation process. The shield is usually divided into a leading shield and a main shield. The leading shield consists of a shield body, a cutter, a hydraulic system, etc. It first enters the soil layer, and through the action of the shield body and the cutter, it cuts the soil layer and pushes it to the side. The main shield is usually composed of a shield body, a cutter, an earth pressure balance system and a support system. When working, the main shield follows the progress of the leading shield, and through the action of the shield body and the cutter, the soil layer is cut into blocks, and the earth pressure balance system is used to balance the pressure of the soil layer to prevent the soil layer from collapsing. At the same time, the support system of the main shield is responsible for supporting and stabilizing the surrounding soil layers to maintain the stability and safety of the tunnel.
[0003] The shield-type TBM wraps the main propulsion system inside the shield body. The shield is relatively long, and the shield and cutterhead are generally 6-7 meters. In the field of tunnel construction, when the TBM equipment completes the excavation task in an inclined shaft environment, it is necessary to dismantle the machine and transfer it inside the tunnel. Due to the large size and heavy weight of the stepping shield, it needs to be disassembled during the dismantling process. This not only requires professional technicians to perform precise operations, but also requires the use of corresponding equipment and tools to ensure the smooth progress of the dismantling work. The dismantling work in the inclined shaft environment has increased the difficulty. The temporary fixing of various components in the inclined shaft has a high safety risk. The tooling required for the various components of the inclined lifting TBM equipment is complex. There are many cross-interferences in the configuration and layout of equipment such as vertical lifting, oblique lifting, and horizontal transportation. The safety risk of dismantling and transportation of ancillary facilities in the inclined shaft is high.
[0004] Therefore, it is necessary to set up temporary fixed points in the inclined shaft and use bottom dragging tools to ensure the smooth dismantling and transfer work. Utility Model Content
[0005] The present application provides a shield bottom dragging tooling device for inclined shaft TBM stepping, which is used to solve the temporary support problem of TBM component structure during the dismantling process and ensure the smooth progress of the dismantling work.
[0006] The present application provides a shield bottom dragging tooling device for TBM stepping in an inclined well, comprising a first support block, a second support block, a hydraulic oil tank, a pin shaft and a hydraulic oil tank telescopic rod; the first support block and the second support block are symmetrically arranged relative to the shield axis, and the first support block and the second support block are fixedly connected to the shield;
[0007] The first end of the first support block and the first end of the second support block are respectively provided with ear plates, the output end of the hydraulic oil tank is connected to one end of the telescopic rod of the hydraulic oil tank, and the other end of the telescopic rod of the hydraulic oil tank is detachably connected to the ear plate through the pin shaft; the hydraulic oil tank includes a hydraulic oil tank base, and the hydraulic oil tank base is connected to the inclined well TBM foundation through a round pipe pin shaft.
[0008] The first support block and the second support block respectively include a first side surface, a second side surface and a third side surface; the first side surface is a contact surface with the ground surface, the third side surface is a contact surface with the shield, and the second side surface connects the first side surface and the third side surface; the second side surface is provided with a lifting ear.
[0009] In a feasible implementation, a connecting block is further included, and the ear plate is welded to the first supporting block or the second supporting block via the connecting block.
[0010] In a feasible implementation, it further includes a patch, which is arranged on opposite sides of the two parallel ear plates, and the patch is welded to the ear plates.
[0011] In a feasible implementation, it further includes a rib plate, which is respectively welded to the connection block and the ear plate.
[0012] In a feasible implementation manner, the end faces of the first support block and the second support block are right-angled triangles, and the second side face is perpendicular to the first side face.
[0013] In a feasible implementation manner, a rubber pad is provided on the third side surface.
[0014] The present application provides a shield bottom dragging tooling device for inclined well TBM stepping, comprising a first support block, a second support block, a hydraulic oil tank, a pin shaft and a hydraulic oil tank telescopic rod. The first support block and the second support block are symmetrically arranged relative to the shield axis, the first support block and the second support block are fixedly connected to the shield, one end of the first support block and the second support block are respectively provided with ear plates, the hydraulic oil tank telescopic rod is detachably connected to the ear plate through the pin shaft, and the shield is pushed to move along the inclined well foundation through the hydraulic oil tank and the hydraulic oil tank telescopic rod. The shield bottom dragging tooling device for inclined well TBM stepping provided by the present application has the advantages of stable structure, strong adaptability, easy installation, durability and reliability, and can effectively improve the support effect and service life of the shield for inclined well TBM stepping. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0016] Figure 1 It is a schematic diagram of the overall structure of the shield bottom dragging tooling device for inclined shaft TBM stepping provided by the present application;
[0017] Figure 2 It is a schematic diagram of the main view of the shield bottom dragging tooling device for TBM stepping in inclined shaft provided by the present application;
[0018] Figure 3 It is a top view schematic diagram of a shield bottom dragging tooling device for TBM stepping in an inclined shaft provided by the present application;
[0019] Figure 4 It is a side view schematic diagram of a shield bottom dragging tooling device for inclined shaft TBM stepping provided by the present application;
[0020] Figure 5 It is a schematic diagram of the use of the shield bottom dragging tooling device for inclined shaft TBM stepping provided in this application.
[0021] Description of reference numerals:
[0022] Among them: 1-first support block; 2-second support block; 3-hydraulic oil tank; 31-hydraulic oil tank base; 4-pin shaft; 5-ear plate; 6-hydraulic oil tank telescopic rod; 7-lifting ear; 8-connecting block; 10-patch; 11-rib plate; 12-rubber pad. DETAILED DESCRIPTION
[0023] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.
[0024] In the field of tunnel construction, when TBM equipment completes the excavation task in an inclined shaft environment, it is necessary to dismantle the machine and transfer it inside the tunnel. The stepping shield is large in size and heavy in weight. During the dismantling process, it needs to be disassembled, which not only requires professional technicians to perform precise operations, but also requires the use of corresponding equipment and tools to ensure the smooth progress of the dismantling work. The dismantling work in an inclined shaft environment has increased the difficulty. The temporary fixing of various components in the inclined shaft has a high safety risk. The tooling required for the oblique lifting TBM equipment is complex. There are many cross-interferences in the configuration and layout of equipment such as vertical lifting and oblique lifting. The safety risk of dismantling and transporting ancillary facilities in the inclined shaft is relatively high. The inclined shaft TBM stepping shield bottom dragging tooling device provided in this application has the advantages of stable structure, strong adaptability, easy installation, durability and reliability, and can effectively improve the support effect and service life of the inclined shaft TBM stepping shield.
[0025] The specific structure of the shield bottom dragging tooling device for inclined shaft TBM stepping provided in this application is described in detail below with reference to the accompanying drawings.
[0026] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the present application provides a shield bottom dragging tooling device for inclined well TBM stepping, including a first support block 1, a second support block 2, a hydraulic oil tank 3, a pin 4 and a hydraulic oil tank telescopic rod 6; wherein, referring to Figure 5 As shown, the first support block 1 and the second support block 2 are symmetrically arranged relative to the shield axis, and the first support block and the second support block are fixedly connected to the shield, and the fixed connection method can be welding. The arrangement of the first support block 1 and the second support block 2 can ensure that the shield is firmly supported, and the symmetrical design makes the support more stable, avoids tilting caused by excessive local force, improves the support effect and service life, and can also reduce safety accidents caused by instability.
[0027] When in use, the first end of the first support block 1 and the first end of the second support block 2 are respectively provided with an ear plate 5, the output end of the hydraulic oil tank 3 is connected to one end of the hydraulic oil tank telescopic rod 6, and the other end of the hydraulic oil tank telescopic rod 6 is detachably connected to the ear plate 5 through the pin shaft 4. The hydraulic oil tank telescopic rod 6 can be rotated relative to the first support block 1 or the second support block 2 with the pin shaft 4 as the axis to adjust the angle. The hydraulic oil tank includes a hydraulic oil tank base 31. When working, the hydraulic oil tank base 31 is connected to the inclined well foundation through the round tube pin shaft. The hydraulic oil tank 3 on the hydraulic oil tank base 31 drives the hydraulic oil tank telescopic rod 6 to extend and retract, pushing the shield forward. When the hydraulic oil tank telescopic rod 6 is extended to the limit position, the round tube pin shaft fixing the hydraulic oil tank base 31 is taken out, and the hydraulic oil tank base 31 is manually pushed forward, and then the base 31 is fixed with the round tube pin shaft, and then the hydraulic oil tank is used to push the hydraulic oil tank telescopic rod 31 to extend, further pushing the shield to move, and this operation cycle is performed to complete the stepping of the shield. The detachable connection between the hydraulic oil tank telescopic rod 6 and the ear plate 5 makes the operation simple and convenient, and is easy to install, disassemble and maintain. When the shield is installed to the specified position, the hydraulic telescopic rod 6 and the hydraulic oil tank 3 can be removed from the shield and used cyclically. It should be noted that in this embodiment, for the convenience of description, the support block refers to the first support block 1 and the second support block 2.
[0028] The first support block 1 and the second support block 2 respectively include a first side surface, a second side surface and a third side surface; the first side surface is a contact surface with the ground, the third side surface is a contact surface with the shield, and the second side surface connects the first side surface and the third side surface; the first support block 1 and the second support block 2 are also respectively provided with a lifting lug 7, which is provided on the second side surface of the first support block 1 and the second support block 2. The lifting lug 7 is provided on the second side surface to facilitate the lifting operation.
[0029] Reference Figure 2 and Figure 3 As shown, in some embodiments, a connecting block 8 is further included, and the ear plate 5 is welded to the first support block 1 or the second support block 2 through the connecting block 8. The connecting block increases the connection strength between the ear plate 5 and the support block, thereby improving the stability of the entire device.
[0030] Reference Figure 3 As shown, in some embodiments, a patch 10 is further included, which is arranged on opposite sides of two parallel ear plates 5, and the patch 10 is welded to the ear plates 5. The patch 10 increases the strength of the ear plates 5 and improves the stability and durability of the device.
[0031] Reference Figure 2 As shown, it also includes a rib plate 11, which is respectively welded to the connecting block 8 and the ear plate 5. The arrangement of the rib plate 11 enhances the structural strength of the device and improves the ability to resist external loads.
[0032] Reference Figure 1 As shown, the end faces of the first support block 1 and the second support block 2 are right triangles, and the second side face is perpendicular to the first side face. The right triangle design enables the support block to better support the shield and improve the support stability.
[0033] Reference Figure 1 As shown, the third side surface is provided with a rubber pad 12. The rubber pad reduces friction and wear between the shield and improves stability during the support process.
[0034] According to the above technical features, the present application provides a shield bottom dragging tooling device for inclined shaft TBM stepping, which provides a stable support for the shield for inclined shaft TBM stepping through the symmetrical arrangement of the first support block and the second support block. The first support block and the second support block both include a first side in contact with the ground surface, a third side in contact with the shield, and a second side connecting the two. The second side is provided with a lifting lug to facilitate the lifting operation. The device also includes an adjustable hydraulic oil tank telescopic rod, which is connected to the ear plate on the support block through a pin shaft, and the shield is pushed to move by the cooperation of the hydraulic oil tank and the hydraulic oil tank telescopic rod. In addition, the introduction of the connecting block, the patch and the rib plate enhances the structural strength of the device, while the right-angle triangle design and the use of rubber pads enhance the stability of the support and the protection effect of the shield. The entire device is reasonably designed and easy to operate, and can effectively improve the safety and efficiency during inclined shaft excavation.
[0035] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on the several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.
[0036] The above specific implementation methods further explain in detail the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above are only specific implementation methods of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.
Claims
1. A shield bottom dragging tooling device for inclined shaft TBM stepping, characterized in that: The invention comprises a first support block (1), a second support block (2), a hydraulic oil tank (3), a pin shaft (4) and a hydraulic oil tank telescopic rod (6); the first support block (1) and the second support block (2) are symmetrically arranged relative to the shield axis, and the first support block (1) and the second support block (2) are fixedly connected to the shield; The first end of the first support block (1) and the first end of the second support block (2) are respectively provided with ear plates (5); the output end of the hydraulic oil tank (3) is connected to one end of the hydraulic oil tank telescopic rod (6); the other end of the hydraulic oil tank telescopic rod (6) is detachably connected to the ear plate (5) via the pin shaft (4); the hydraulic oil tank (3) comprises a hydraulic oil tank base (31); the hydraulic oil tank base (31) is connected to the inclined well TBM foundation via a round pipe pin shaft; The first support block (1) and the second support block (2) respectively comprise a first side surface, a second side surface and a third side surface; the first side surface is a contact surface with the ground surface, the third side surface is a contact surface with the shield, and the second side surface connects the first side surface and the third side surface; the second side surface is provided with a lifting lug (7).
2. The shield bottom dragging tooling device for inclined shaft TBM stepping according to claim 1 is characterized in that: It also comprises a connecting block (8), and the ear plate (5) is connected to the first supporting block (1) or the second supporting block (2) by welding through the connecting block (8).
3. The shield bottom dragging tooling device for inclined shaft TBM stepping according to claim 1 is characterized in that: It also comprises a patch (10), wherein the patch (10) is arranged on opposite sides of the two parallel ear plates (5), and the patch (10) is connected to the ear plates (5) by welding.
4. The shield bottom dragging tooling device for inclined shaft TBM stepping according to claim 2 is characterized in that: It also comprises a rib plate (11), wherein the rib plate (11) is respectively connected to the connection block (8) and the ear plate (5) by welding.
5. The shield bottom dragging tooling device for inclined shaft TBM stepping according to claim 1 is characterized in that: The end faces of the first support block (1) and the second support block (2) are right triangles, and the second side face is perpendicular to the first side face.
6. The shield bottom dragging tooling device for inclined shaft TBM stepping according to claim 1 is characterized in that: The third side surface is provided with a rubber pad (12).