CN215747391U

CN215747391U - Large-scale heavy-duty gear train welding frock

Info

Publication number: CN215747391U
Application number: CN202121407497.0U
Authority: CN
Inventors: 李永国; 赵立
Original assignee: Henan Gengli Intelligent Equipment Co ltd
Current assignee: Henan Gengli Intelligent Equipment Co ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2022-02-08
Anticipated expiration: 2031-06-24

Abstract

A large heavy-duty gear set welding tool relates to the technical field of auxiliary welding tools and comprises a supporting disc, a hollow upright post and a coaxial positioning device; the top of the disc surface of the supporting disc is provided with a vertical hollow upright post, one end of the large gear is correspondingly contacted with the top of the disc surface of the supporting disc, three positioning blocks for enabling the large gear and the hollow upright post to be correspondingly coaxial are arranged at intervals on the outer side of the top of the disc surface of the supporting disc corresponding to the large gear, and the positioning blocks are correspondingly meshed with gear teeth of the large gear; the hollow shaft is correspondingly sleeved with the shaft of the hollow upright post, a coaxial positioning device for enabling the hollow shaft and the pinion to be correspondingly coaxial with the hollow upright post is arranged in the hollow shaft, the coaxial positioning device comprises a core shaft, an expansion block, an annular tension spring and a telescopic cylinder, and the core shaft is movably inserted in the hollow upright post; the utility model can effectively ensure the coaxiality of the gear set body and effectively improve the welding precision.

Description

Large-scale heavy-duty gear train welding frock

Technical Field

The utility model relates to the technical field of welding auxiliary tools, in particular to a large heavy-duty gear set welding tool.

Background

The large heavy-duty gear set for the cargo ship usually comprises a hollow shaft, a large gear and a small gear which are correspondingly welded together, the large gear of some products is about 2m in diameter, the welding assembly difficulty is high, the coaxiality of parts cannot be guaranteed, and the technical requirements cannot be met after welding, so that the problem needs to be solved by technical personnel in the field.

Disclosure of Invention

In order to overcome the defects in the background art, the utility model discloses a large heavy-duty gear set welding tool.

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

a large heavy-duty gear set welding tool is used for assisting in welding a gear set body, the gear set body comprises a hollow shaft, a large gear and a small gear, the large gear is welded at one end of a shaft body of the hollow shaft, one end of the small gear is correspondingly and coaxially welded with the end face of the other end of the hollow shaft, a central hole of the small gear is consistent with the inner aperture of the hollow shaft, and the large heavy-duty gear set welding tool comprises a supporting plate, a hollow upright post and a coaxial positioning device; the top of the disc surface of the supporting disc is provided with a vertical hollow upright post, one end of the large gear is correspondingly contacted with the top of the disc surface of the supporting disc, three positioning blocks for enabling the large gear and the hollow upright post to be correspondingly coaxial are arranged at intervals on the outer side of the top of the disc surface of the supporting disc corresponding to the large gear, and the positioning blocks are correspondingly meshed with gear teeth of the large gear;

the hollow shaft is correspondingly sleeved with the shaft of the hollow upright post, a coaxial positioning device for enabling the hollow shaft and the pinion to be correspondingly coaxial with the hollow upright post is arranged in the hollow shaft, the coaxial positioning device comprises a core shaft, an expansion block, an annular tension spring and a telescopic cylinder, the core shaft is movably inserted in the hollow upright post, and the telescopic cylinder for driving the core shaft to move up and down is arranged at the bottom in the hollow upright post; a plurality of slots are uniformly distributed on the positions, close to the bottom, of the column body of the hollow stand column and the corresponding connecting positions of the pinion and the hollow shaft, and are provided with spacing rings, wedge-shaped expansion blocks are inserted in the slots in a sliding mode, and conical bosses correspondingly matched with wedge surfaces of the expansion blocks are arranged on the positions, corresponding to the expansion blocks, of the spindle shaft body; the outside cover of bloated piece is equipped with the annular extension spring that is used for making bloated piece automatic contraction, and bloated piece body is equipped with the annular in the position that corresponds annular extension spring.

Preferably, a plurality of pressing blocks used for pressing the bull gear are installed on the top of the disc surface of the supporting disc corresponding to the outer side of the bull gear.

Preferably, a pressing cap for pressing the pinion is screwed on the top of the column body of the hollow column.

Preferably, the bottom of supporting disk is equipped with the base, and the supporting disk passes through the gyration with the base and supports corresponding rotation and be connected.

Preferably, the position that the bloated piece at hollow stand top corresponds pinion and hollow shaft and is connected is equipped with the recess, and corresponding bloated piece corresponds the upper and lower both sides of recess and all overlaps and be equipped with annular extension spring.

Preferably, the positioning block is correspondingly connected with the disc surface of the supporting disc through a pin shaft.

Due to the adoption of the technical scheme, the utility model has the following beneficial effects:

the welding tool for the large heavy-duty gear set, disclosed by the utility model, is simple in structure, can effectively ensure the coaxiality of the hollow shaft, the large gear and the small gear of the gear set body, and improves the welding precision; three positioning blocks for enabling the large gear and the hollow upright post to be correspondingly coaxial are arranged on the top of the disc surface of the supporting disc at intervals and correspond to the outer side of the large gear, and the circle center of a circle formed by the three positioning blocks can be correspondingly superposed with the axis of the hollow upright post, so that the large gear and the hollow upright post are correspondingly coaxial after the positioning blocks are correspondingly meshed with the gear teeth of the large gear; in addition, a plurality of briquetting that are used for compressing tightly the gear wheel are installed to the corresponding outside of gear wheel in quotation top of supporting disk, simultaneously the shaft top silk of hollow column has the pressure cap that is used for compressing tightly the pinion, can compress tightly the gear wheel through the briquetting promptly when welding operation, compresses tightly the pinion through pressing the cap, avoids producing welding deformation.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a coaxial positioning device;

fig. 3 is a schematic structural diagram of the use state of the present invention.

In the figure: 1. a gear set body; 1-1, a hollow shaft; 1-2, a gearwheel; 1-3, pinion; 2. a support disc; 3. a hollow upright post; 4. a coaxial positioning device; 4-1, mandrel; 4-2, expanding blocks; 4-3, a ring-shaped tension spring; 4-4, a telescopic cylinder; 4-5, a groove; 5. positioning blocks; 6. briquetting; 7. a base; 8. a pin shaft; 9. and (6) pressing the cap.

Detailed Description

The present invention will be explained in detail by the following embodiments, and the purpose of disclosing the utility model is to protect all technical improvements within the scope of the present invention, in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., it is only corresponding to the drawings of the present application, and it is convenient to describe the present invention, and it is not intended to indicate or imply that the referred device or element must have a specific orientation.

With reference to the attached drawings 1-3, the large heavy-duty gear set welding tool is used for assisting in welding a gear set body 1, the gear set body 1 comprises a hollow shaft 1-1, a large gear 1-2 and a small gear 1-3, the large gear 1-2 is welded at one end of a shaft body of the hollow shaft 1-1, one end of the small gear 1-3 is correspondingly and coaxially welded with the end face of the other end of the hollow shaft 1-1, a central hole of the small gear 1-3 is consistent with the inner aperture of the hollow shaft 1-1, and the large heavy-duty gear set welding tool comprises a supporting plate 2, a hollow upright post 3 and a coaxial positioning device 4; a vertical hollow upright post 3 is arranged at the top of the disc surface of the supporting disc 2, one end of the large gear 1-2 is correspondingly contacted with the top of the disc surface of the supporting disc 2, three positioning blocks 5 for enabling the large gear 1-2 and the hollow upright post 3 to be correspondingly coaxial are arranged at intervals on the outer side of the top of the disc surface of the supporting disc 2 corresponding to the large gear 1-2, and the positioning blocks 5 are correspondingly meshed with gear teeth of the large gear 1-2, so that the circle center of a circle formed by the three positioning blocks 5 can be correspondingly superposed with the axis of the hollow upright post 3, and the large gear 1-2 and the hollow upright post 3 are correspondingly coaxial after the positioning blocks 5 are correspondingly meshed with the gear teeth of the large gear 1-2; according to the requirement, the positioning block 5 is correspondingly connected with the disc surface of the supporting disc 2 through the pin shaft 8, so that the installation is convenient and rapid;

the hollow shaft 1-1 is correspondingly sleeved with a shaft of the hollow upright post 3, a coaxial positioning device 4 for enabling the hollow shaft 1-1 and the pinion 1-3 to be correspondingly coaxial with the hollow upright post 3 is arranged in the hollow shaft 1-1, the coaxial positioning device 4 comprises a mandrel 4-1, an expansion block 4-2, an annular tension spring 4-3 and a telescopic cylinder 4-4, the mandrel 4-1 is movably inserted in the hollow upright post 3, and the telescopic cylinder 4-4 for driving the mandrel 4-1 to move up and down is arranged at the bottom in the hollow upright post 3; the position, close to the bottom, of the column body of the hollow upright column 3 and the corresponding connecting positions of the pinion 1-3 and the hollow shaft 1-1 are uniformly provided with a plurality of grooves in a spaced ring manner, wedge-shaped expansion blocks 4-2 are inserted in the grooves in a sliding manner, and cone-shaped bosses correspondingly matched with wedge-shaped surfaces of the expansion blocks 4-2 are arranged at the positions, corresponding to the expansion blocks 4-2, of the shaft body of the mandrel 4-1, namely the mandrel 4-1 can be pushed to move upwards through a telescopic cylinder 4-4, the expansion blocks 4-2 are pushed to move outwards through the cone-shaped bosses, so that the corresponding expansion blocks 4-2 are abutted against inner holes of the hollow shaft 1-1 and the pinion 1-3, and the hollow shaft 1-1 and the pinion 1-3 are correspondingly coaxial with the hollow upright column 3; an annular tension spring 4-3 for enabling the expansion block 4-2 to automatically contract is sleeved on the outer side of the expansion block 4-2, a ring groove is formed in the position, corresponding to the annular tension spring 4-3, of the expansion block 4-2, the annular tension spring 4-3 is guaranteed not to be in contact with inner holes of the hollow shaft 1-1 and the pinion 1-3, and when the telescopic cylinder 4-4 drives the mandrel 4-1 to move downwards, the annular tension spring 4-3 contracts to drive the expansion block 4-2 to contract inwards and reset; according to the requirement, a groove 4-5 is formed in the position, corresponding to the connection position of the pinion 1-3 and the hollow shaft 1-1, of the expansion block 4-2 at the top of the hollow upright post 3, and an annular tension spring 4-3 is sleeved on the upper side and the lower side, corresponding to the groove 4-5, of the corresponding expansion block 4-2, so that the expansion block 4-2 can be prevented from being damaged in welding;

in addition, a plurality of pressing blocks 6 used for pressing the large gears 1-2 are mounted on the top of the disc surface of the supporting disc 2 corresponding to the outer sides of the large gears 1-2, and meanwhile, a pressing cap 9 used for pressing the small gears 1-3 is screwed on the top of the column body of the hollow column 3, namely the large gears 1-2 can be pressed through the pressing blocks 6 during welding operation, and the small gears 1-3 are pressed through the pressing cap 9, so that welding deformation is avoided; the bottom of supporting disk 2 is equipped with base 7, and supporting disk 2 supports through the gyration with base 7 and corresponds the rotation and be connected, and the operating personnel of being convenient for carries out welding operation.

When the large heavy-duty gear set welding tool is implemented, the large gear 1-2, the hollow shaft 1-1 and the small gear 1-3 are assembled in sequence, the positioning block 5 is correspondingly meshed with the gear teeth of the large gear 1-2, the large gear 1-2 and the hollow upright post 3 are correspondingly coaxial, the mandrel 4-1 is pushed to move upwards through the telescopic cylinder 4-4, the expansion block 4-2 is pushed to move outwards through the conical boss, and then the corresponding expansion block 4-2 is abutted against the inner holes of the hollow shaft 1-1 and the small gear 1-3, so that the hollow shaft 1-1 and the small gear 1-3 are correspondingly coaxial with the hollow upright post 3, and corresponding welding operation can be carried out.

The utility model is not described in detail in the prior art, and it is apparent to a person skilled in the art that the utility model is not limited to details of the above-described exemplary embodiments, but that the utility model can be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Claims

1. The utility model provides a large-scale heavy load gear train welding frock for supplementary welding gear train body (1), this gear train body (1) contain hollow shaft (1-1), gear wheel (1-2) and pinion (1-3), gear wheel (1-2) weld in the shaft body one end of hollow shaft (1-1), the one end of pinion (1-3) corresponds coaxial welding with the other end terminal surface of hollow shaft (1-1), and the centre bore of pinion (1-3) is unanimous with the inner aperture of hollow shaft (1-1), characterized by: comprises a support disc (2), a hollow upright post (3) and a coaxial positioning device (4); a vertical hollow upright post (3) is arranged at the top of the disc surface of the supporting disc (2), one end of the large gear (1-2) is correspondingly contacted with the top of the disc surface of the supporting disc (2), three positioning blocks (5) for enabling the large gear (1-2) and the hollow upright post (3) to be correspondingly coaxial are annularly arranged at the top of the disc surface of the supporting disc (2) corresponding to the outer side of the large gear (1-2), and the positioning blocks (5) are correspondingly meshed with gear teeth of the large gear (1-2);

the hollow shaft (1-1) is correspondingly sleeved with a shaft of the hollow upright post (3), a coaxial positioning device (4) for enabling the hollow shaft (1-1) and the pinion (1-3) to be coaxial with the hollow upright post (3) is arranged in the hollow shaft (1-1), the coaxial positioning device (4) comprises a mandrel (4-1), an expansion block (4-2), an annular tension spring (4-3) and a telescopic cylinder (4-4), the mandrel (4-1) is movably inserted in the hollow upright post (3), and the telescopic cylinder (4-4) for driving the mandrel (4-1) to move up and down is arranged at the bottom in the hollow upright post (3); the position, close to the bottom, of a column body of the hollow upright column (3), and the corresponding connecting positions of the pinion (1-3) and the hollow shaft (1-1) are uniformly provided with a plurality of slots in a spacing ring mode, wedge-shaped expansion blocks (4-2) are inserted in the slots in a sliding mode, and cone-shaped bosses correspondingly matched with wedge-shaped surfaces of the expansion blocks (4-2) are arranged at the positions, corresponding to the expansion blocks (4-2), of a shaft body of the mandrel (4-1); an annular tension spring (4-3) used for enabling the expansion block (4-2) to automatically contract is sleeved on the outer side of the expansion block (4-2), and a ring groove is formed in the position, corresponding to the annular tension spring (4-3), of the body of the expansion block (4-2).

2. The large heavy-duty gear set welding tool of claim 1, characterized in that: and a plurality of pressing blocks (6) used for pressing the large gears (1-2) are arranged on the top of the disc surface of the supporting disc (2) corresponding to the outer sides of the large gears (1-2).

3. The large heavy-duty gear set welding tool of claim 1, characterized in that: and a pressing cap (9) for pressing the pinion (1-3) is screwed on the top of the column body of the hollow column (3).

4. The large heavy-duty gear set welding tool of claim 1, characterized in that: the bottom of supporting disk (2) is equipped with base (7), and supporting disk (2) and base (7) support through the gyration and correspond the rotation and be connected.

5. The large heavy-duty gear set welding tool of claim 1, characterized in that: the expansion block (4-2) at the top of the hollow upright post (3) is provided with a groove (4-5) corresponding to the position where the pinion (1-3) and the hollow shaft (1-1) are connected, and the upper side and the lower side of the corresponding expansion block (4-2) corresponding to the groove (4-5) are both provided with an annular tension spring (4-3).

6. The large heavy-duty gear set welding tool of claim 1, characterized in that: the positioning block (5) is correspondingly connected with the disc surface of the supporting disc (2) through a pin shaft (8).