CN220050613U - Auxiliary tool for repairing broken main shaft of screw compressor - Google Patents

Abstract

The utility model relates to the technical field of repairing of main shafts of compressors, and discloses an auxiliary tool for repairing a broken main shaft of a screw compressor, which comprises a bottom plate and two vertical plates arranged on the bottom plate, wherein three-jaw chucks are respectively embedded and arranged on opposite sides of the two vertical plates, a rectangular opening is formed in a position, close to the bottom end, of each vertical plate, a matched L-shaped plate is inserted in each rectangular opening in a sliding manner, the L-shaped plate consists of a horizontal part and a vertical part, a positioning assembly is arranged between the horizontal part and the vertical plate of the L-shaped plate, a cylinder coaxially arranged with the three-jaw chucks is fixedly embedded on the vertical part of the L-shaped plate, one vertical plate is fixedly connected with the bottom plate, and a sliding assembly is arranged between the other vertical plate and the bottom plate. The utility model not only can clamp the two broken parts of the main shaft conveniently, but also can limit the two broken parts axially, so that the two broken parts are mutually extruded to always keep a close fit state, thereby being beneficial to improving the stability of subsequent spot welding connection.

Description

Auxiliary tool for repairing broken main shaft of screw compressor

Technical Field

The utility model relates to the technical field of repair of main shafts of compressors, in particular to an auxiliary tool for repairing a broken main shaft of a screw compressor.

Background

Because the main shaft of the large-sized air compressor is easy to break due to factors such as long-term high-load operation, vibration, fatigue and the like, once the main shaft of the air compressor breaks, a plurality of manufacturers adopt a method of replacing a new main shaft to achieve the purpose of recovering production, and the main shaft of the compressor is customized for the original factory for producing compressor equipment, so that the cost is high on one hand, and the operation cost of enterprises is greatly increased; on the other hand, the main shaft customization time is long, the production recovery period of enterprises is long, and the main shaft customization time is a serious time waste for the enterprises; therefore, after the main shaft of the large-sized air compressor is broken, the main shaft is quickly repaired and helps enterprises to timely recover production and operation, and urgent market demands are met.

The air compressor main shaft can divide into two sections after fracture, at present in repair process, most utilize two location frock to carry out the centre gripping to the cracked two parts of main shaft, then drill respectively in the opposite ends of two fracture parts, and select suitable connecting axle to insert in the drilling as burying the axle, promote one of them location frock and make the cracked two sections of main shaft coincide each other, carry out spot welding to the joint portion and make it reconnect at last, but this kind of mode can lead to the cracked two parts of main shaft not have the extrusion effort each other, can't guarantee that the cracked two parts of main shaft remain the state of hugging closely each other throughout in the spot welding process, thereby easily influence the steadiness after the spot welding is connected.

Disclosure of Invention

The utility model aims to solve the problems in the background art, and provides an auxiliary tool for repairing a broken main shaft of a screw compressor.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides an auxiliary fixtures for repairing screw compressor fracture main shaft, includes bottom plate and two risers of installing on the bottom plate, two three-jaw chuck is all inlayed in the opposite side of riser, and the riser is close to the position department of bottom and has seted up the rectangle mouth, the L template that is equipped with the matching is inserted in the slip of rectangle mouth, L template comprises horizontal part and vertical portion, and installs locating component between L template horizontal part and the riser, fixed the inlaying on the vertical portion of L template have with the barrel of the coaxial setting of three-jaw chuck, one of them riser and bottom plate fixed connection, another install sliding component between riser and the bottom plate.

Preferably, the locating component comprises a strip-shaped groove formed in one side of the horizontal part of the L-shaped plate, a rack is mounted at the bottom of the strip-shaped groove, a tooth block is meshed on the rack, a hidden groove for accommodating the tooth block is formed in the side wall of the rectangular opening, and a bolt connected with the tooth block in a rotating mode is mounted on the outer side threads of the vertical plate.

Preferably, the sliding assembly comprises sliding grooves symmetrically formed in the upper surface of the bottom plate, sliding blocks corresponding to the sliding grooves are arranged at the bottoms of the vertical plates, and a hydraulic cylinder connected with the vertical plates is arranged on the upper surface of the bottom plate.

Preferably, the bottom of the L-shaped plate is provided with rollers in rolling connection with the upper surface of the bottom plate.

Preferably, the barrel is provided with the stopper that matches in the slip, the one end that the barrel nozzle was kept away from to the stopper rotates and installs the screw rod, the screw rod extends to the barrel outside, and the screw rod is connected with the barrel bottom screw thread of barrel.

Preferably, a rubber pad is arranged at one end of the limiting block, which is far away from the screw rod.

Compared with the prior art, the utility model provides an auxiliary tool for repairing the broken main shaft of the screw compressor, which has the following beneficial effects:

1. this an auxiliary fixtures for repairing screw compressor fracture main shaft, the three-jaw chuck through on two risers is convenient carries out the centre gripping to the two parts after the main shaft fracture, utilizes the position of locating component to conveniently adjust the L template, and the cooperation barrel is convenient carries out axial spacing to the opposite ends of two parts after the main shaft fracture, utilizes sliding component to conveniently make one of them riser be close to towards another riser for the two parts after the main shaft fracture extrudees each other and forms closely laminating state, thereby is favorable to improving follow-up spot welding connection's steadiness.

2. This an auxiliary fixtures for repairing screw compressor fracture main shaft, three-jaw chuck can drive the stopper through rotating the screw rod and slide along the barrel when the main shaft fracture portion that clamp length is shorter to in the through-hole that is convenient for the stopper to extend to three-jaw chuck center department, make the stopper inconsistent with the one end of main shaft fracture portion, thereby realize axial spacing.

The device has the advantages that the two broken parts of the main shaft can be clamped conveniently, and the two broken parts can be limited axially, so that the two broken parts are mutually extruded to always keep a close fit state, and the stability of subsequent spot welding connection is improved.

Drawings

FIG. 1 is a perspective view of an auxiliary tool for repairing a broken main shaft of a screw compressor;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a perspective view of the connection portion of the bolt and the tooth block in the present utility model;

fig. 4 is a schematic structural view of a connection portion between a stopper and a barrel in the present utility model.

In the figure: 1. a bottom plate; 2. a riser; 3. a three-jaw chuck; 4. an L-shaped plate; 5. a cylinder; 6. a bar-shaped groove; 7. a rack; 8. tooth blocks; 9. a bolt; 10. a chute; 11. a hydraulic cylinder; 12. a roller; 13. a limiting block; 14. a screw; 15. and a rubber pad.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1, an auxiliary fixture for repairing a broken main shaft of a screw compressor comprises a bottom plate 1 and two vertical plates 2 arranged on the bottom plate 1, wherein one vertical plate 2 is fixedly connected with the bottom plate 1, a sliding component is arranged between the other vertical plate 2 and the bottom plate 1 and comprises sliding grooves 10 symmetrically formed in the upper surface of the bottom plate 1, sliding blocks corresponding to the sliding grooves 10 are arranged at the bottoms of the vertical plates 2, sliding guiding is facilitated, a hydraulic cylinder 11 connected with the vertical plates 2 is arranged on the upper surface of the bottom plate 1, and one vertical plate 2 is conveniently driven to horizontally move along the bottom plate 1.

Referring to fig. 1, three-jaw chuck 3 is all inlayed and installed to the opposite sides of two risers 2, conveniently carry out the centre gripping to two parts after the main shaft fracture, and rectangular mouth has been seted up to the position department that riser 2 is close to the bottom, sliding insert in the rectangular mouth is equipped with the L template 4 of matching, L template 4 comprises horizontal part and vertical portion, fixed the inlaying in the vertical portion of L template 4 have with the barrel 5,L template 4 horizontal part and the riser 2 of the coaxial setting of three-jaw chuck 3 between install locating component, conveniently adjust the position of L template 4, make barrel 5 carry out axial spacing to the opposite ends of two parts after the main shaft fracture.

Referring to fig. 1-3, the locating component is including seting up the bar groove 6 in L template 4 horizontal part one side, rack 7 is installed to the tank bottom in bar groove 6, rack 7 is located bar groove 6, guarantee can not influence L template 4 and slide along the rectangle mouth, the gyro wheel 12 of rolling connection with bottom plate 1 upper surface is installed to the bottom of L template 4, conveniently support L template 4, the meshing is provided with tooth piece 8 on the rack 7, the lateral wall department of rectangle mouth has been seted up and is used for accomodating tooth piece 8 hiding the groove, the bolt 9 with tooth piece 8 swivelling joint is installed to the outside screw thread of riser 2, rotate bolt 9 and conveniently control whether tooth piece 8 takes place the meshing with rack 7, thereby the position to L template 4 is conveniently locked.

Referring to fig. 1 and 4, the matched limiting block 13 is slidably arranged in the cylinder 5, one end, far away from the cylinder opening of the cylinder 5, of the limiting block 13 is rotatably provided with a screw 14, the screw 14 extends to the outer side of the cylinder 5, the screw 14 is connected with the bottom screw of the cylinder 5, the inner diameter of the cylinder 5 is equal to the aperture of a through hole in the center of the three-jaw chuck, the rotating screw 14 conveniently drives the limiting block 13 to extend to the outer side of the cylinder 5, the limiting block 13 extends into the through hole in the center of the three-jaw chuck 3, the limiting block 13 is in contact with one end of a main shaft fracture part (the main shaft fracture part is short in length and cannot completely penetrate through the three-jaw chuck 3), and one end, far away from the screw 14, of the limiting block 13 is provided with a rubber pad 15, so that protection is convenient.

Working principle: when the main shaft of the screw compressor breaks to form an A section and a B section, the A section and the B section can be clamped by utilizing the three-jaw chucks 3 on the two vertical plates 2, the L-shaped plate 4 is pushed to slide along the rectangular opening on the vertical plates 2, the cylinder body 5 inlaid on the L-shaped plate 4 is sleeved at the opposite ends of the A section and the B section, the tooth block 8 is meshed with the rack 7 by the rotating bolt 9, the L-shaped plate 4 can be locked in position, the rotating screw 14 drives the limiting block 13 to be contacted with the opposite ends of the A section and the B section, finally, the hydraulic cylinder 11 is started to drive one vertical plate 2 to approach the other vertical plate 2, so that the A section and the B section are mutually extruded and attached, the opposite ends of the A section and the B section are attached with the limiting block 13, the axial movement of the L-shaped plate is limited, the A section and the B section can always keep a mutually extruded and attached state, and finally, the joint of the A section and the B section can be spot welded, and the broken and repaired main shaft can be realized.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. The utility model provides an auxiliary fixtures for repairing screw compressor fracture main shaft, includes bottom plate and two risers of installing on the bottom plate, its characterized in that, two the three-jaw chuck is all inlayed and is installed to the opposite side of riser, and the position department that the riser is close to the bottom has seted up the rectangle mouth, sliding plug is equipped with the L template of matching in the rectangle mouth, L template comprises horizontal part and vertical part, and installs locating component between L template horizontal part and the riser, fixed the inlaying on the vertical part of L template has the barrel with the coaxial setting of three-jaw chuck, one of them riser and bottom plate fixed connection, another install sliding component between riser and the bottom plate.

2. The auxiliary tool for repairing the broken main shaft of the screw compressor according to claim 1, wherein the positioning assembly comprises a strip-shaped groove formed in one side of the horizontal portion of the L-shaped plate, a rack is mounted at the bottom of the strip-shaped groove, a tooth block is arranged on the rack in a meshed mode, a hidden groove for accommodating the tooth block is formed in the side wall of the rectangular opening, and a bolt in rotary connection with the tooth block is mounted on the outer side thread of the vertical plate.

3. The auxiliary tool for repairing the broken main shaft of the screw compressor according to claim 1, wherein the sliding assembly comprises sliding grooves symmetrically formed in the upper surface of a base plate, sliding blocks corresponding to the sliding grooves are arranged at the bottoms of the vertical plates, and a hydraulic cylinder connected with the vertical plates is arranged on the upper surface of the base plate.

4. The auxiliary tool for repairing a broken main shaft of a screw compressor according to claim 1, wherein rollers in rolling connection with the upper surface of the bottom plate are installed at the bottom of the L-shaped plate.

5. The auxiliary tool for repairing the broken main shaft of the screw compressor according to claim 1, wherein a matched limiting block is slidably arranged in the cylinder body, a screw is rotatably arranged at one end, far away from the cylinder opening of the cylinder body, of the limiting block, the screw extends to the outer side of the cylinder body, and the screw is connected with a bottom screw thread of the cylinder body.

6. The auxiliary tool for repairing a broken main shaft of a screw compressor according to claim 5, wherein a rubber pad is arranged at one end of the limiting block, which is far away from the screw.