CN221210553U

CN221210553U - Narrow and small space trunnion extractor

Info

Publication number: CN221210553U
Application number: CN202323153280.3U
Authority: CN
Inventors: 徐俊义; 李玲; 马川; 连小青; 李保在; 许伟; 张甜甜; 张宁; 张学超
Original assignee: Shanxi North Machine Building Co Ltd
Current assignee: Shanxi North Machine Building Co Ltd
Priority date: 2023-11-22
Filing date: 2023-11-22
Publication date: 2024-06-25
Anticipated expiration: 2033-11-22

Abstract

The utility model belongs to the technical field of mechanical maintenance tools, and discloses a narrow space trunnion extractor which comprises a cylinder (1), a reversing valve (2), a clamping block (3) and a grabbing clamp (4); the air cylinder (1) is connected with the reversing valve (2), and the clamping block (3) is fixed at the lower end of the cylinder body of the air cylinder; the upper end of the grabbing clamp (4) is hinged with the clamping block (3), the lower end of the grabbing clamp (4) is of an inward hook structure, and when the cylinder piston rod extends out of the lower end of the cylinder body, the grabbing clamp (4) is connected with the cylinder piston rod. The utility model has simple structure and high reliability, can realize the rapid separation of the trunnion and the shaft pin in a narrow space, protects the trunnion and the shaft pin from being damaged, and rapidly and conveniently takes down the trunnion.

Description

Narrow and small space trunnion extractor

Technical Field

The utility model belongs to the technical field of mechanical maintenance tools, and particularly relates to a narrow space trunnion extractor.

Background

In the mechanical assembly and maintenance process of saluting gun, the problem that a narrow space is required to operate and a shaft sleeve needs to be taken out is frequently encountered, the trunnion and the shaft pin are in interference fit, a worker master often uses a hammer to separate violently, in the process, huge potential safety hazards exist, the moving space of the hammer in the narrow space is too small, insufficient force is caused to separate the trunnion from the shaft, and the parts are easily damaged by violent striking.

Disclosure of utility model

The technical problems to be solved by the utility model are as follows: the trunnion assembly and disassembly in the prior art are inconvenient and easy to damage.

In order to solve the technical problems, the specific technical scheme of the utility model is as follows:

A narrow space trunnion extractor comprises a cylinder 1, a reversing valve 2, a clamping block 3 and a grabbing clamp 4; the air cylinder 1 is connected with the reversing valve 2, and the clamping block 3 is fixed at the lower end of the cylinder body; the upper end of the grabbing clamp 4 is hinged with the clamping block 3, the lower end of the grabbing clamp 4 is of an inward hook structure, and when the cylinder piston rod extends out of the lower end of the cylinder body, the grabbing clamp 4 is connected with the cylinder piston rod.

The utility model has the following advantages: the structure is simple, the reliability is high, the trunnion and the shaft pin can be rapidly separated in a narrow space, the trunnion and the shaft pin are protected from being damaged, and the trunnion can be rapidly and conveniently taken down.

Drawings

FIG. 1 is a schematic diagram of a small space trunnion extractor;

FIG. 2 is a schematic view of a small space trunnion extractor;

Wherein, 1-cylinder; 2-reversing valve; 3-clamping blocks; 4-grabbing clips.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings for a better understanding of the objects, structures and functions of the present utility model.

As shown in fig. 1-2, the narrow space trunnion extractor of the present utility model includes a cylinder 1, a reversing valve 2, a clamp block 3, and a clamp 4.

Wherein, the cylinder 1 is connected with a reversing valve 2, and the clamping block 3 is fixed on the body of the cylinder. The upper end of the grabbing clamp 4 is connected to the clamping block 3 through four rivets, the lower end of the grabbing clamp 4 is of an inward hook structure, when the piston rod of the air cylinder stretches out, the hook structure at the lower end of the grabbing clamp 4 hooks the shaft sleeve to clamp gradually, so that the shaft sleeve and the shaft pin move relatively until the shaft sleeve is taken down.

The cylinder 1 in fig. 1 needs to be connected with an on-site air source to provide motive power, and can be independently provided with the air source due to working requirements. The cylinder 1 serves as an executing element, the shaft pin is pushed to move through the expansion and contraction of the piston rod, the grabbing clamp 4 reversely pulls the trunnion, the trunnion and the shaft pin form relative movement, and the trunnion is quickly separated.

The reversing valve 2 controls the air supply direction of the air source for the air cylinder 1 so as to control the extension or retraction of the piston rod.

The clamping block 3 is fixedly connected with the cylinder body of the air cylinder 1, and when the piston rod extends out, the piston rod moves along with the cylinder body in the opposite direction relative to the piston rod.

The grabbing clamp 4 is fixed on the clamping block 3 through bolts, when the grabbing clamp is used, the grabbing clamp 4 hooks the lower edge of the shaft sleeve, the reversing valve 2 reverses, the piston rod stretches out, the shaft pin is pushed out, and the shaft sleeve is separated from the shaft.

Working process

The trunnion removing process comprises the following steps: the grabbing clamp 4 is abutted against the outer edge of the shaft sleeve, the air source is connected, the reversing valve 2 acts, the piston rod stretches out, the grabbing clamp 4 is tensioned in the process, the shaft pin is pushed outwards until the shaft sleeve is separated from the shaft pin, and the trunnion can be taken down.

Although embodiments of the present utility model have been described in conjunction with the accompanying drawings, it will be apparent to those skilled in the art that several variations and modifications may be made without departing from the principles of the utility model, which are also considered to be within the scope of the utility model.

Claims

1. The narrow space trunnion extractor is characterized by comprising a cylinder (1), a reversing valve (2), a clamping block (3) and a grabbing clamp (4); the air cylinder (1) is connected with the reversing valve (2), and the clamping block (3) is fixed at the lower end of the cylinder body of the air cylinder; the upper end of the grabbing clamp (4) is hinged with the clamping block (3), the lower end of the grabbing clamp (4) is of an inward hook structure, and when the cylinder piston rod extends out of the lower end of the cylinder body, the grabbing clamp (4) is connected with the cylinder piston rod.