Auxiliary tool for assembling large shield

Abstract

The utility model discloses an auxiliary tool for assembling a large shield, which belongs to the technical field of engineering machinery and comprises a mounting base, a plurality of first oil cylinders are fixedly arranged on the mounting base, an oil tank and an oil pump are arranged on the mounting base, the oil pump is arranged in the oil tank, and the oil pump is arranged in the oil tank. The multiple first oil cylinder pipes are connected to an oil pump. A supporting rod is fixedly arranged on the mounting base, a placing platform is fixedly arranged on the supporting rod, a first expansion shaft is fixedly arranged on the placing platform, and the first expansion shaft and the supporting rod are coaxially arranged; a steering table is rotatably arranged on the supporting rod, an extension table is fixedly arranged on the steering table, a lead screw lifting machine is fixedly arranged on the extension table, a mounting table is fixedly arranged on an output shaft of the lead screw lifting machine, a second expansion shaft is fixedly arranged on the mounting table, and the second expansion shaft and the supporting rod are arranged in parallel; the utility model has the advantage of improving the equipment assembly precision.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to an auxiliary tooling for assembling a large shield. Background Art

[0002] The large shield machine is an advanced tunnel boring equipment, which is widely used in infrastructure construction fields such as subways, railways, highways, and water conservancy. It adopts the shield method to achieve rapid excavation of underground tunnels through cutting, excavation, transportation and other processes. The large shield machine has the advantages of fast excavation speed, high engineering quality, and good safety, so it plays an increasingly important role in modern urban construction.

[0003] However, large shield machines are different from common engineering machinery. They can be sent to the construction site for use after being assembled and prepared. However, due to their huge size, the existing transportation method is generally to disassemble the parts of the large shield machine, send them to the construction site, and then install them on site.

[0004] However, when assembling at the construction site, it is still necessary to ensure the installation accuracy of each component of the large shield machine, especially the assembly relationship between the various components in the propulsion mechanism, which affects the forward direction of the large shield machine during excavation. Therefore, the assembly accuracy of the propulsion mechanism needs to be strictly guaranteed.

[0005] Based on this, the utility model designs an auxiliary tooling for assembling a large shield to solve the above problems. Utility Model Content

[0006] The utility model aims to provide an auxiliary tooling for assembling a large shield to solve the above technical problems.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: it includes a mounting base, a first oil cylinder is fixedly arranged on the mounting base, a plurality of the first oil cylinders are arranged, an oil tank and an oil pump are arranged on the mounting base, the oil pump is arranged in the oil tank, and a plurality of the first oil cylinder pipes are connected to the oil pump; a support rod is fixedly arranged on the mounting base, a placing platform is fixedly arranged on the support rod, a first expansion axis is fixedly arranged on the placing platform, and the first expansion axis is coaxially arranged with the support rod; a turning platform is rotatably arranged on the support rod, an extension platform is fixedly arranged on the turning platform, a screw lift is fixedly arranged on the extension platform, a mounting platform is fixedly arranged on the output shaft of the screw lift, a second expansion axis is fixedly arranged on the mounting platform, and the second expansion axis is arranged parallel to the support rod.

[0008] By adopting the above technical solution, the first oil cylinder connected to the same oil pump makes the axis of the mounting base coaxial with the axis of the front shield, so that when the driving device mounting seat is welded, the driving device mounting seat and the front shield are ensured to be coaxially arranged; by rotating the turning platform and the extension platform arranged on the support rod, the distance between the propulsion cylinder mounting seat and the driving device mounting seat remains unchanged, and the axes of the two are parallel to each other, thereby improving the assembly accuracy of the large shield machine.

[0009] Preferably, a tightening block is rotatably provided on the output shaft of the first oil cylinder.

[0010] By adopting the above technical solution, when positioning the front shield, the contact between the rotating abutting block and the inner wall of the front shield can prevent the output shaft of the first oil cylinder from directly acting on the front shield, thereby damaging the front shield.

[0011] Preferably, a bull's eye bearing is fixedly arranged on the placement platform, and a plurality of bull's eye bearings are arranged.

[0012] By adopting the above technical solution, when the center of the drive device mounting seat is positioned, the drive device mounting seat can be easily translated on the placement platform, thereby avoiding scratches caused by friction between the drive device mounting seat and the surface of the placement platform.

[0013] Preferably, a fixing hole is provided on the turning platform, a fixing base is threadedly connected to the fixing hole, and the fixing base is pressed against the support rod.

[0014] By adopting the above technical solution, when assembling the propulsion cylinder mounting seat, the steering angle of the steering platform is fixed by tightening the base, which makes it convenient for workers to weld and fix the propulsion cylinder mounting seat and the front shield.

[0015] Preferably, a limit block is fixedly provided on the second expansion shaft, and a plurality of limit blocks are provided.

[0016] By adopting the above technical solution, when assembling the propulsion cylinder mounting seat, the limit block supports the propulsion cylinder mounting seat, making it convenient for the staff to sleeve it on the second expansion shaft.

[0017] In summary, the present application has the following beneficial technical effects: by connecting the first oil cylinder to the same oil pump, the axis of the mounting base is arranged coaxially with the axis of the front shield, so that when the drive device mounting base is welded, the drive device mounting base and the front shield are ensured to be coaxially arranged; by rotating the turning platform and the arrangement of the extension platform arranged on the support rod, the distance between the propulsion cylinder mounting base and the drive device mounting base remains unchanged, and the axes of the two remain parallel to each other; when assembling a large shield machine, after ensuring that the axis of the support rod and the front shield are coaxial through the mounting base, the drive device mounting base and the propulsion cylinder mounting base welded by auxiliary tooling are kept parallel to the axis of the front shield, which has the advantage of improving the assembly accuracy of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic diagram of the installation base structure of this embodiment;

[0020] Figure 2 For this embodiment Figure 1 A magnified view of the structure in the middle;

[0021] Figure 3 This is a schematic diagram of the structure of the turning platform in this embodiment;

[0022] Figure 4 This is a schematic diagram of the installation position of the first oil cylinder in this embodiment.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Mounting base; 2. First oil cylinder; 3. Oil tank; 4. Oil pump; 5. Tightening block; 6. Support rod; 7. Placing platform; 8. First expansion shaft; 9. Bull's eye bearing; 10. Steering table; 11. Tightening hole; 12. Tightening base; 13. Extension table; 14. Screw lift; 15. Mounting table; 16. Second expansion shaft; 17. Limit block. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The following is combined with Figure 1 —4 Provide further details of this application.

[0027] An auxiliary tool for assembling a large shield machine comprises a mounting base 1.

[0028] A first oil cylinder 2 is fixedly arranged on the mounting base 1, and three first oil cylinders 2 are arranged. An oil tank 3 and an oil pump 4 are arranged on the mounting base 1. The oil pump 4 is arranged in the oil tank 3, and the three first oil cylinders 2 are connected to the oil pump 4 by pipes; a tightening block 5 is rotatably arranged on the output shaft of the first oil cylinder 2.

[0029] A support rod 6 is fixedly arranged on the mounting base 1, a placement platform 7 is fixedly arranged on the support rod 6, a first expansion axis 8 is fixedly arranged on the placement platform 7, and the first expansion axis 8 is coaxially arranged with the support rod 6; a bull's eye bearing 9 is fixedly arranged on the placement platform 7, and a plurality of bull's eye bearings 9 are arranged.

[0030] A turning platform 10 is rotatably provided on the support rod 6 . A fixing hole 11 is provided on the turning platform 10 . A fixing base 12 is threadedly connected to the fixing hole 11 . The fixing base 12 is pressed against the support rod 6 .

[0031] An extension platform 13 is fixedly arranged on the turning platform 10, a screw lift 14 is fixedly arranged on the extension platform 13, a mounting platform 15 is fixedly arranged on the output shaft of the screw lift 14, a second expansion shaft 16 is fixedly arranged on the mounting platform 15, and the second expansion shaft 16 is arranged parallel to the support rod 6; a limit block 17 is fixedly arranged on the second expansion shaft 16, and a plurality of limit blocks 17 are arranged.

[0032] The implementation principle of this embodiment is as follows: when assembling a large shield machine at a construction site, first place the mounting base 1 on the horizontal ground, and then place the front shield of the large shield machine on the mounting base 1; then drive the oil pump 4 to work, and pump the hydraulic oil in the oil tank 3 into the three first oil cylinders 2 together; during the extension of the three first oil cylinders 2, since the three first oil cylinders 2 share one oil pipe, when the pressure in the pipe is not balanced, the hydraulic oil in the first oil cylinder 2 with a longer telescopic shaft will flow back through the oil pipe to the first oil cylinder 2 with a shorter telescopic shaft, until the telescopic shafts of the three first oil cylinders 2 are extended to the longest state, at which time the support rod 6 is coaxially arranged with the front shield; then place the drive device mounting seat on the placement platform 7, and drive the first expansion shaft 8 to work at the same time. After expansion, the first expansion shaft 8 contacts the drive device mounting seat, and drives the drive device mounting seat to roll on the bull's eye bearing 9 until the drive device mounting seat and the support rod 6 are aligned. The support rod 6 is coaxially arranged, and the driving device mounting seat can be welded and fixed; finally, by rotating the steering platform 10 and fixing the steering platform 10 through the tightening base 12, after the propulsion cylinder mounting seat is placed on the limit block 17, the second expansion shaft 16 is driven to work and the propulsion cylinder mounting seat is fixed; then the screw lift 14 is driven to drive the mounting platform 15 to rise, and the propulsion cylinder mounting seat fixed on the mounting platform 15 is lifted to a specified height for welding, and the second expansion shaft 16 can be driven to retract and the screw lift is lowered. After loosening the tightening base 12, the steering platform 10 is rotated to install and weld the next propulsion cylinder mounting seat; when the propulsion cylinder mounting seat is welded, the first expansion shaft 8 is driven to retract, and the oil pump 4 is driven to return the hydraulic oil pump 4 in the three first oil cylinders 2 to the oil tank 3. After the abutting block 5 on the first oil cylinder 2 is out of contact with the front shield, the welded front shield can be lifted off for use.

[0033] By connecting the three first oil cylinders 2 on the same oil pump 4, the axis of the mounting base 1 is arranged coaxially with the axis of the front shield, so that when the driving device mounting base is welded, the driving device mounting base and the front shield are ensured to be arranged coaxially; by rotating the turning platform 10 and the arrangement of the extension platform 13 arranged on the support rod 6, the distance between the propulsion cylinder mounting seat on the second expansion shaft 16 and the driving device mounting seat on the support rod 6 remains unchanged, and the axes of the two remain parallel to each other; when assembling the large shield machine, after ensuring that the axis of the support rod 6 and the front shield are coaxial through the mounting base 1, the driving device mounting seat and the propulsion cylinder mounting seat welded by the auxiliary tooling are kept parallel to the axis of the front shield, which has the advantage of improving the assembly accuracy of the equipment.

[0034] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

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

Claims

1. An auxiliary tooling for large shield assembly, characterized by: The invention comprises a mounting base (1), on which a first oil cylinder (2) is fixedly arranged, wherein a plurality of the first oil cylinders (2) are arranged, and an oil tank (3) and an oil pump (4) are arranged on the mounting base (1), wherein the oil pump (4) is arranged in the oil tank (3), and a plurality of the first oil cylinders (2) are connected to the oil pump (4) by pipes; a support rod (6) is fixedly arranged on the mounting base (1), a placement platform (7) is fixedly arranged on the support rod (6), and a first expansion joint (2) is fixedly arranged on the placement platform (7) An expansion shaft (8), wherein the first expansion shaft (8) is coaxially arranged with the support rod (6); a turning platform (10) is rotatably arranged on the support rod (6), an extension platform (13) is fixedly arranged on the turning platform (10), a screw lift (14) is fixedly arranged on the extension platform (13), a mounting platform (15) is fixedly arranged on the output shaft of the screw lift (14), a second expansion shaft (16) is fixedly arranged on the mounting platform (15), and the second expansion shaft (16) is arranged parallel to the support rod (6).

2. The auxiliary tooling for large shield assembly according to claim 1 is characterized in that: A tightening block (5) is rotatably arranged on the output shaft of the first oil cylinder (2).

3. The auxiliary tooling for large shield assembly according to claim 1 is characterized in that: A bull's eye bearing (9) is fixedly arranged on the placement platform (7), and a plurality of bull's eye bearings (9) are arranged.

4. The auxiliary tooling for large shield assembly according to claim 1 is characterized in that: The turning platform (10) is provided with a fixing hole (11), a fixing base (12) is threadedly connected to the fixing hole (11), and the fixing base (12) is tightly pressed against the extension platform (13).

5. The auxiliary tooling for large shield assembly according to claim 1 is characterized in that: A limit block (17) is fixedly arranged on the second expansion shaft (16), and a plurality of limit blocks (17) are arranged.

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