Crank pin screw disassembly tool

Abstract

The invention discloses a crank pin screw disassembly tool. The crank pin screw disassembly tool is characterized by comprising a transmission arm, a bracket and a spanner head; a first turning arm isa hollow pipe, and the middle is hinged through a horizontal first hinge shaft; the outer edge of the front end of the first turning arm is connected with an annular boss; forward projections are arranged on two sides of an inner hole on the front end surface of the annular boss; bearing bushes are connected to the front parts of the forward projections; the transmission arm is provided with a second turning arm; two sides of the back end of the second turning arm are connected with second hinge shafts matched with the bearing bushes and having axes parallel to an axis of the first hinge shaft; a positioning hole with the same diameter and aligned to and coaxial with the inner hole of the first turning arm is formed in the back section of the second turning arm; the front section of the second turning arm is fork-shaped; the transmission arm is provided with a third turning arm; the front end of the fork shape of the second turning arm is hinged with the third turning arm through a third hinge shaft; the back section of the third turning arm is positioned in the fork-shaped part; and a first dowel pin is arranged between the back end of the third turning arm and the fork part. Thecrank pin screw disassembly tool achieves high speed, power saving and safety.

Description

technical field [0001] The invention relates to a tool for disassembling a screw on an elongated support arm, in particular to a crank pin screw disassembling tool. Background technique [0002] In industrial production engineering machinery, the long support arm is sometimes provided with a pin shaft for transmission. The pin shaft has a large load and needs to be replaced after being worn for a period of time. For example, the crank pin of the pumping unit should be tightened when replacing. In the process of connecting with Panasonic crank pin screws, due to the large size of the components, a long afterburner rod is required, and multiple people are required to apply force, which is prone to pinching accidents, and direct hitting with a sledgehammer is also prone to smashing accidents, which is laborious and ineffective. Safety, low work efficiency, which still needs to be solved by further innovation. SUMMARY OF THE INVENTION [0003] In order to solve the above prob...

AI Technical Summary

Problems solved by technology

[0002] In industrial production engineering machinery, the long-strip support arm is sometimes equipped with a pin shaft for transmission. The pin shaft has a large load and needs to be replaced after being worn out for a period of time. For example, the crank pin of a pumping unit should be tightened when replacing. In the process of screwing with the Panasonic crank pin, because the parts are large and require a long afterburner rod, multiple people are required to apply force, which is prone to pinching accidents, and direct knocking with a sledgehammer is also prone to crushing accidents, which is laborious and unnecessary. Safety, low work efficiency, which still needs to be solved by further innovation

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