CN219170792U

CN219170792U - Inverted tool of coupling bolt stretcher

Info

Publication number: CN219170792U
Application number: CN202223560009.7U
Authority: CN
Inventors: 孔祥力; 赵春贺; 李湧博; 贺万峰; 刘鸿举; 向田维
Original assignee: China Yangtze Power Co Ltd
Current assignee: China Yangtze Power Co Ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-13
Anticipated expiration: 2032-12-30

Abstract

The utility model provides a shaft coupling bolt stretcher flip-chip instrument, includes bearing structure, bearing structure on be equipped with the support that connection structure and symmetry set up and put the structure, bearing structure includes the carrier bar that the symmetry set up, is equipped with multiunit first connecting screw rod and multiunit connecting hole on the carrier bar, be equipped with on the first connecting screw rod rather than complex first coupling nut. By adopting the structure, the side-turning risk of the tool is effectively avoided when the tool is disassembled; the weight of the stretcher is effectively transferred, the friction resistance during disassembly and assembly is reduced, and the damage to threads and the risk of sticking teeth are effectively avoided; all bolts can be disassembled after the stretcher is vertically conveyed once, so that the conveying times are effectively reduced, the disassembly and assembly efficiency is improved by more than half, and the manpower resource investment is saved; the split type design of this device, convenient transportation, the span can be adjusted according to the scene demand, is applicable to the dismouting of many scenes flip-chip bolt stretcher.

Description

Inverted tool of coupling bolt stretcher

Technical Field

The utility model relates to the technical field of hydraulic generator maintenance tools, in particular to a coupler bolt stretcher flip-chip tool.

Background

In the maintenance process of the hydroelectric generating set, the inverted bolts of the rotating wheel and the turbine shaft are required to be disassembled, the specifications of the coupling bolts are generally M150 and above, the disassembling stretcher is inverted, the weight of one group is about 200kg, the manpower carrying and mounting difficulty is high, and the risk is high. The seesaw type tool is generally used for installation in installation, only one group of stretching can be installed at a time by the method, the efficiency is low, the stretching head of the stretcher is greatly affected by gravity and has high friction resistance and is not easy to rotate, and the thread damage or tooth sticking risk is increased. The tool can be caused to turn over due to slight operation deviation, so that a large operation safety risk exists, and inconvenience and potential safety hazard are brought to construction. Therefore, a reverse installation tool of the coupling bolt stretcher needs to be redesigned, and the problems and the potential safety hazards are avoided.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide a shaft coupling bolt stretcher flip-chip tool, which can avoid the side-turning risk of the tool when being disassembled; the weight of the stretcher is effectively transferred, the friction resistance during disassembly and assembly is reduced, and the damage to threads and the risk of sticking teeth are effectively avoided; all bolts can be disassembled after the stretcher is vertically conveyed once, so that the conveying times are effectively reduced, the disassembly and assembly efficiency is improved by more than half, and the manpower resource investment is saved; the split type design of this device, convenient transportation, the span can be adjusted according to the scene demand, is applicable to the dismouting of many scenes flip-chip bolt stretcher.

In order to solve the technical problems, the utility model adopts the following technical scheme: the inverted tool of the coupling bolt stretcher comprises a bearing structure, wherein the bearing structure is provided with a connecting structure and a symmetrically arranged supporting structure, the bearing structure comprises symmetrically arranged bearing beams, the bearing beams are provided with a plurality of groups of first connecting screw rods and a plurality of groups of connecting holes, and the first connecting screw rods are provided with first connecting screw caps matched with the first connecting screw rods;

the connecting structure comprises a connecting beam and a connecting plate which are matched with each other, wherein a first connecting groove and a second connecting groove which are matched with the first connecting screw are respectively formed in the connecting beam and the connecting plate, a second connecting screw which is matched with the connecting hole is arranged on the first connecting groove and the second connecting groove, and a second connecting screw cap is arranged on the second connecting screw;

the supporting structure comprises a supporting plate matched with the bearing beam, and a lifting screw rod is arranged on the supporting plate.

In a preferred scheme, a first gasket is arranged on the first connecting screw.

In a preferred scheme, a second gasket is arranged on the second connecting screw.

In the preferred scheme, the supporting plate is provided with a positioning chute matched with the bearing beam.

In the preferred scheme, the bottom of carrier beam be equipped with the bottom plate, the symmetry is equipped with the mounting hole on the bottom plate, be equipped with in the mounting hole rather than dismouting complex lug structure, lug structure and suspender cooperation.

In the preferred scheme, a reinforcing plate is arranged between the bottom plate and the bearing beam.

The inversion tool of the coupling bolt stretcher provided by the utility model has the following beneficial effects by adopting the structure:

(1) When the tool is used for disassembly, the side overturning risk of the tool is effectively avoided;

(2) The weight of the stretcher is effectively transferred, the friction resistance during disassembly and assembly is reduced, and the damage to threads and the risk of sticking teeth are effectively avoided;

(3) All bolts can be disassembled after the stretcher is vertically conveyed once, so that the conveying times are effectively reduced, the disassembly and assembly efficiency is improved by more than half, and the manpower resource investment is saved;

(4) The split type design of this device, convenient transportation, the span can be adjusted according to the scene demand, is applicable to the dismouting of many scenes flip-chip bolt stretcher.

Drawings

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic view of a bearing structure according to the present utility model.

Fig. 3 is a schematic view of a bearing structure according to the present utility model.

Fig. 4 is a schematic diagram of a connection structure according to the present utility model.

Fig. 5 is a schematic view of a supporting structure of the present utility model.

In the figure: the lifting device comprises a bearing structure 1, a connecting structure 2, a supporting structure 3, a lifting lug structure 4, a hanging strip 5, a bearing beam 6, a first connecting screw rod 7, a first connecting screw cap 8, a first gasket 9, a connecting hole 10, a bottom plate 11, a reinforcing plate 12, a mounting hole 13, a connecting beam 14, a connecting plate 15, a first connecting groove 16, a second connecting groove 17, a second connecting screw rod 18, a second connecting screw cap 19, a second gasket 20, a supporting plate 21, a positioning sliding groove 22 and a lifting screw rod 23.

Detailed Description

As shown in fig. 1-5, a coupling bolt stretcher flip-chip tool comprises a bearing structure 1, wherein a connecting structure 2 and a symmetrically arranged supporting structure 3 are arranged on the bearing structure 1, the bearing structure 1 comprises symmetrically arranged bearing beams 6, a plurality of groups of first connecting screws 7 and a plurality of groups of connecting holes 10 are arranged on the bearing beams 6, and first connecting nuts 8 matched with the first connecting screws 7 are arranged on the first connecting screws 7;

the connecting structure 2 comprises a connecting beam 14 and a connecting plate 15 which are matched with each other, a first connecting groove 16 and a second connecting groove 17 which are matched with the first connecting screw 7 are respectively arranged on the connecting beam 14 and the connecting plate 15, a second connecting screw 18 which is matched with the connecting hole 10 is arranged on the first connecting groove 16 and the second connecting groove 17, and a second connecting screw cap 19 is arranged on the second connecting screw 18;

the supporting structure 3 comprises a supporting plate 21 matched with the bearing beam 6, and a lifting screw 23 is arranged on the supporting plate 21.

In a preferred embodiment, the first connecting screw 7 is provided with a first gasket 9. The installation is stable, and the abrasion is reduced.

In a preferred embodiment, the second connecting screw 18 is provided with a second spacer 20. The installation is stable, and the abrasion is reduced.

In a preferred embodiment, the supporting plate 21 is provided with a positioning chute 22 matched with the bearing beam 6. The installation is stable, and the assembly is accurate.

In the preferred scheme, the bottom of carrier bar 6 be equipped with bottom plate 11, the symmetry is equipped with mounting hole 13 on the bottom plate 11, be equipped with in the mounting hole 13 rather than dismouting complex lug structure 4, lug structure 4 and suspender 5 cooperation. The lifting and the disassembly are convenient to cooperate.

In a preferred embodiment, a reinforcing plate 12 is disposed between the bottom plate 11 and the load beam 6. The strength of the connection is enhanced.

The application method of the utility model comprises the following steps: according to the combined tooling of the field condition, a shear type lifter is arranged on the supporting plate 21 and is used for bearing a stretcher, the weight of the stretcher is transferred to the bearing beam 6 through the cooperation of the lifting screw 23 and the connecting shaft bolt matched with the lifting screw 23, the shear type lifter is mainly used for transferring the weight of a stretcher cylinder body and a base to the supporting plate 21, the stress of a stretching head is relieved, the friction force between threads is reduced, and the stretching head is convenient to assemble and disassemble. When the stretcher is installed, firstly, the bearing beam 6 is lifted by the hanging belt 5 and the chain block, the lower part of the bearing beam 6 is filled with wood for protection, and the supporting plate 21 is placed on the bearing beam 6;

then the stretcher is reversely placed on the supporting plate 21, the supporting plate 21 is knocked and moved to the position right below the coupling bolt by using a copper rod, the supporting plate 21 and the stretcher are strung together by using a lifting screw 23 and are arranged on a hanging lug hole of the coupling bolt; the carrier beam 6 and the stretcher are integrally pulled up by using a chain block until the thread of the stretching head is in threaded contact with the thread of the coupling bolt;

and supporting the stretcher cylinder body and the base to be in contact with the flange surface of the rotating wheel by using a shear type lifter, and installing the stretching head until the stretching head is installed in place. The stretcher removal process may be performed in accordance with the reverse of the above-described installation process.

The utility model has the beneficial effects that: when the tool is used for disassembly, the side overturning risk of the tool is effectively avoided; the weight of the stretcher is effectively transferred, the friction resistance during disassembly and assembly is reduced, and the damage to threads and the risk of sticking teeth are effectively avoided; all bolts can be disassembled after the stretcher is vertically conveyed once, so that the conveying times are effectively reduced, the disassembly and assembly efficiency is improved by more than half, and the manpower resource investment is saved; the split type design of this device, convenient transportation, the span can be adjusted according to the scene demand, is applicable to the dismouting of many scenes flip-chip bolt stretcher.

Claims

1. The utility model provides a shaft coupling bolt stretcher flip-chip instrument, includes bearing structure (1), its characterized in that: the bearing structure (1) is provided with a connecting structure (2) and a symmetrically arranged supporting structure (3), the bearing structure (1) comprises symmetrically arranged bearing beams (6), the bearing beams (6) are provided with a plurality of groups of first connecting screws (7) and a plurality of groups of connecting holes (10), and the first connecting screws (7) are provided with first connecting nuts (8) matched with the first connecting screws;

the connecting structure (2) comprises a connecting beam (14) and a connecting plate (15) which are matched with each other, a first connecting groove (16) and a second connecting groove (17) which are matched with the first connecting screw (7) are respectively arranged on the connecting beam (14) and the connecting plate (15), a second connecting screw (18) which is matched with the connecting hole (10) is arranged on the first connecting groove (16) and the second connecting groove (17), and a second connecting screw cap (19) is arranged on the second connecting screw (18);

the supporting structure (3) comprises a supporting plate (21) matched with the bearing beam (6), and a lifting screw (23) is arranged on the supporting plate (21).

2. The coupling bolt tensioner flip-chip tool of claim 1, wherein: the first connecting screw (7) is provided with a first gasket (9).

3. The coupling bolt tensioner flip-chip tool of claim 1, wherein: and a second gasket (20) is arranged on the second connecting screw (18).

4. The coupling bolt tensioner flip-chip tool of claim 1, wherein: the supporting plate (21) is provided with a positioning chute (22) matched with the bearing beam (6).

5. The coupling bolt tensioner flip-chip tool of claim 1, wherein: the bottom of the bearing beam (6) is provided with a bottom plate (11), the bottom plate (11) is symmetrically provided with mounting holes (13), lifting lug structures (4) which are matched with the mounting holes (13) in a dismounting mode are arranged in the mounting holes (13), and the lifting lug structures (4) are matched with the hanging strips (5).

6. The coupling bolt tensioner flip-chip tool of claim 5, wherein: a reinforcing plate (12) is arranged between the bottom plate (11) and the bearing beam (6).