A kind of for inclined shaft TBM main drive lifting lug device

Abstract

The utility model provides a kind of for inclined shaft TBM main drive lifting lug device, belong to hoisting technical field, it includes: bottom plate, lifting lug piece and reverse buckle bolt, the top of bottom plate is fixedly connected with lifting lug piece, the top surface of bottom plate is equipped with through-hole, the through-hole of bottom plate is buckled with the connecting hole of TBM main drive end portion equipped by reverse buckle bolt, reverse buckle bolt includes: threaded rod, the top end of threaded rod is fixedly connected with hexagonal head, the side surface bottom end of threaded rod is slidably installed with sliding reverse buckle piece, and nut is threadedly installed on the threaded rod and above bottom plate.The utility model, by the connecting hole of TBM main drive end portion equipped, and using reverse buckle bolt, bottom plate is fixedly installed in TBM main drive end portion, such connection mode, can greatly reduce the time of lifting lug device installation and disassembly in hoisting operation process, to improve the efficiency of on-site hoisting operation, improve operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of hoisting technology, specifically to a hoisting lug device for the main drive of a TBM in an inclined shaft. Background Technology

[0002] The main drive system of a TBM primarily consists of a motor, a reducer, a first coupling, a fixed frame, and pinions. Additionally, it includes a load-sharing mechanism, which comprises an eccentric connecting rod, a follower connecting rod, and a balance connecting rod. The purpose of the load-sharing mechanism is to automatically balance the load on each pinion. To reduce the torsional vibration of the pinions under external excitation, a vibration damping mechanism is also included, consisting of a second coupling, a force-transmitting rotor, a swing rail, and a counterweight.

[0003] After the project is completed, the TBM equipment is dismantled and moved to another site. The traditional lifting lugs are fixed by welding or bolts. Welding is a complicated operation, and bolt fixing requires penetrating the equipment, which makes the lifting operation inconvenient. Therefore, this utility model provides a lifting lug device for the main drive of the inclined shaft TBM. Utility Model Content

[0004] To address the problem of inconvenient installation of lifting lugs during hoisting operations, this utility model provides a lifting lug device for the main drive of a TBM in an inclined shaft.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A lifting lug device for the main drive of a TBM in an inclined shaft includes:

[0007] A base plate, the top of which is fixedly connected with lifting lugs;

[0008] The top surface of the base plate has a through hole, and the through hole of the base plate is fastened to the connection hole of the TBM main drive end by a back bolt;

[0009] The undercut bolt includes: a threaded rod, a hexagonal head fixedly connected to the top of the threaded rod, a sliding undercut component slidably installed on the bottom side of the threaded rod, and a nut threadedly installed on the threaded rod above the base plate;

[0010] The connecting hole has an annular groove near the bottom and an annular opening near the top.

[0011] As a further description of the above technical solution:

[0012] The lifting lug includes a main lifting lug and auxiliary lifting lugs connected to both sides of the main lifting lug. The main lifting lug is an isosceles triangle and the auxiliary lifting lugs are inverted triangles. The bottoms of both the main lifting lug and the auxiliary lifting lugs are fixedly connected to the base plate.

[0013] As a further description of the above technical solution:

[0014] A reinforcing member is fixedly connected between the main lifting lug and the base plate.

[0015] As a further description of the above technical solution:

[0016] The sliding buckle includes: a stop block; a side opening is provided at the bottom side of the threaded rod; an L-shaped sliding groove is provided on the inner side of the side opening; the stop block is located inside the side opening; and a sliding rod corresponding to the L-shaped sliding groove is fixedly connected to the side of the stop block.

[0017] The vertical part of the L-shaped sliding groove is designed to be obliquely outward along the axial direction of the threaded rod.

[0018] As a further description of the above technical solution:

[0019] There are two nuts provided.

[0020] As a further description of the above technical solution:

[0021] The base plate is fan-shaped.

[0022] The beneficial effects of this utility model are:

[0023] This invention utilizes a connection hole at the end of the TBM main drive and a reverse bolt to fix the base plate to the end of the TBM main drive. This connection method can greatly reduce the time for installing and disassembling the lifting lugs during hoisting operations, thereby improving the efficiency of on-site hoisting operations and increasing overall work efficiency. Attached Figure Description

[0024] The following figures are shown to more clearly illustrate a main drive lifting lug device for a deviated shaft TBM;

[0025] Figure 1 This is a perspective view of the present utility model;

[0026] Figure 2 This is a front view of the present invention;

[0027] Figure 3 This is a side view of the present invention;

[0028] Figure 4 This is a top view of the present invention;

[0029] Figure 5 This is a schematic diagram of the connection of the undercut bolt of this utility model;

[0030] Figure 6 This is a three-dimensional schematic diagram of the undercut bolt of this utility model;

[0031] Figure 7 for Figure 6 A magnified view of a portion of point A in the middle.

[0032] The labels in the attached diagram;

[0033] 1. Main lifting lug; 2. Base plate; 3. Back bolt; 301. Threaded rod; 302. Hexagonal head; 303. Nut; 304. Sliding back bolt; 304a. Side opening; 304b. L-shaped sliding groove; 304c. Abutment block; 4. Reinforcing member; 5. Secondary lifting lug; 6. Through hole; 7. Connecting hole; 7a. Annular groove; 7b. Annular opening. Detailed Implementation

[0034] Please refer to the attached document. Figures 1-7 This illustration shows a main drive lifting lug device for a TBM in an inclined shaft provided by an embodiment of this application, including: a base plate 2, lifting lug components, and undercut bolts 3.

[0035] The connection hole 7 is opened at the end of the TBM main drive, and the base plate 2 is fixedly installed at the end of the TBM main drive using the back bolt 3. This connection method can greatly reduce the time for installation and disassembly of the lifting lug device during the hoisting operation, thereby improving the efficiency of on-site hoisting operations and increasing work efficiency.

[0036] The top of the base plate 2 is fixedly connected with a lifting lug, preferably a full welding connection, to ensure the connection strength between the lifting lug and the base plate 2. The lifting lug is provided with a hanging hole, and the top surface of the base plate 2 is provided with a through hole 6. Multiple through holes 6 can be designed. The through hole 6 of the base plate 2 is fastened to the connection hole 7 opened at the end of the TBM main drive by a back bolt 3.

[0037] Specifically, the undercut bolt 3 includes: a threaded rod 301, a hexagonal head 302 fixedly connected to the top of the threaded rod 301, the hexagonal head 302 preferably adopting an internal hexagonal structure, a sliding undercut 304 slidably installed on the bottom side of the threaded rod 301, multiple sliding undercuts 304 arranged in a circular array, when the sliding undercut 304 slides along the side of the threaded rod 301, it moves towards the outside of the threaded rod 301, so that it can be locked inside the connecting hole 7 to form a stable connection structure, and a nut 303 is threadedly installed on the threaded rod 301 and above the base plate 2.

[0038] like Figure 2As shown, the bottom end of the threaded rod 301 of the undercut bolt 3 and the sliding undercut 304 both pass through the through hole 6 and are inserted downward into the connection hole 7. Then, the nut 303 is rotated, and the nut 303 presses downward against the base plate 2. Its reaction force pulls the threaded rod 301 upward. The sliding undercut 304 is blocked by the base plate 2. At this time, the sliding undercut 304 slides downward relative to the threaded rod 301 and moves towards the outside of the threaded rod 301, thereby stably locking inside the connection hole 7 to form a stable connection structure.

[0039] The connecting hole 7 has an annular groove 7a near the bottom, which corresponds to the protruding part of the outer bottom of the sliding buckle 304. The connecting hole 7 has an annular opening 7b near the top, which corresponds to the protruding part of the outer top of the sliding buckle 304. The protruding part of the outer top of the sliding buckle 304 rests against the bottom of the base plate 2.

[0040] In one embodiment, the lifting lug includes: a main lifting lug 1 and auxiliary lifting lugs 5 connected to both sides of the main lifting lug 1. The main lifting lug 1 is an isosceles triangle, and the auxiliary lifting lugs 5 are inverted triangles. The bottoms of the main lifting lug 1 and the auxiliary lifting lugs 5 are fixedly connected to the base plate 2. The main lifting lug 1 and the two auxiliary lifting lugs 5 are distributed in a cross shape. The main lifting lug 1 is used to connect the main lifting rope and is the main force-bearing component. The auxiliary lifting lugs 5 are used to connect the lifting stabilizing and auxiliary lifting ropes to ensure the stability of the lifting process.

[0041] In one embodiment, a reinforcing member 4 is fixedly connected between the main lifting lug 1 and the base plate 2 to increase the connection strength between the main lifting lug 1 and the base plate 2. Generally, lifting holes are provided on the sides of the main lifting lug 1 and the auxiliary lifting lug 5 for connecting the lifting rope.

[0042] In one embodiment, the sliding buckle 304 includes: a stop block 304c, a side opening 304a is provided at the bottom side of the threaded rod 301, an L-shaped sliding groove 304b is provided on the inner side of the side opening 304a, the stop block 304c is located inside the side opening 304a, and a slide rod corresponding to the L-shaped sliding groove 304b is fixedly connected to the side of the stop block 304c, and the vertical part of the L-shaped sliding groove 304b is designed to be obliquely outward along the axial direction of the threaded rod.

[0043] When the abutment block 304c is inside the side opening 304a and slides along the vertical part of the L-shaped sliding groove 304b, the abutment block 304c slides obliquely outward along the axial direction of the threaded rod in the vertical direction of the L-shaped sliding groove 304b. That is, the outer diameter of the abutment block 304c increases, and the abutment block 304c and the connecting hole 7 form a stable fastening structure.

[0044] In one embodiment, two nuts 303 are provided, and the two nuts 303 can achieve stable clamping.

[0045] In one embodiment, the base plate 2 is fan-shaped, corresponding to the main drive end face of the circular TBM structure, and multiple lifting lug devices can be distributed in a ring along the main drive end face of the circular TBM structure.

[0046] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0047] It should be understood that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. This invention is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

Claims

1. A lifting lug device for the main drive of a TBM in an inclined shaft, characterized in that, include: The base plate (2) has a lifting lug fixedly connected to its top; The top surface of the base plate (2) is provided with a through hole (6), and the through hole (6) of the base plate (2) is fastened to the connection hole (7) opened at the end of the TBM main drive by a back bolt (3); The undercut bolt (3) includes: a threaded rod (301), a hexagonal head (302) fixedly connected to the top of the threaded rod (301), a sliding undercut part (304) slidably installed on the bottom side of the threaded rod (301), and a nut (303) threadedly installed on the threaded rod (301) and above the base plate (2); The connecting hole (7) has an annular groove (7a) near the bottom and an annular opening (7b) near the top.

2. The main drive lifting lug device for inclined shaft TBM according to claim 1, characterized in that, The lifting lugs include: a main lifting lug (1) and auxiliary lifting lugs (5) connected to both sides of the main lifting lug (1). The main lifting lug (1) is an isosceles triangle and the auxiliary lifting lugs (5) are inverted triangles. The bottoms of the main lifting lug (1) and the auxiliary lifting lugs (5) are fixedly connected to the base plate (2).

3. A lifting lug device for the main drive of a TBM in an inclined shaft according to claim 2, characterized in that: A reinforcing member (4) is fixedly connected between the main lifting lug (1) and the base plate (2).

4. A lifting lug device for the main drive of an inclined shaft TBM according to claim 3, characterized in that, The sliding buckle (304) includes: a stop block (304c), a side opening (304a) is provided at the bottom side of the threaded rod (301), an L-shaped sliding groove (304b) is provided on the inner side of the side opening (304a), the stop block (304c) is located inside the side opening (304a), and a sliding rod corresponding to the L-shaped sliding groove (304b) is fixedly connected to the side of the stop block (304c); The vertical part of the L-shaped sliding groove (304b) is designed to be obliquely outward along the axial direction of the threaded rod.

5. A lifting lug device for the main drive of a TBM in an inclined shaft according to claim 1, characterized in that: Two nuts (303) are provided.

6. A lifting lug device for the main drive of a TBM in an inclined shaft according to claim 1, characterized in that: The base plate (2) is fan-shaped.

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