Automatic reversing type bidirectional stepping piston

Abstract

The invention belongs to the technical field of mechanical stepping control on fluid power sources and particularly relates to an automatic reversing type bidirectional stepping piston. The automatic reversing type bidirectional stepping piston comprises a stepping piston cylinder, an annular piston and a stepping piston shaft, wherein the annular piston is sleeved with the stepping piston cylinder and moves in the middle of the stepping piston cylinder; the stepping piston shaft penetrates through the stepping piston cylinder and the annular piston and moves in the stepping piston cylinder and the annular piston; a return gas port and an advancement gas port are arranged on the stepping piston cylinder; retaining pins are arranged on the stepping piston cylinder and the annular piston; springs are arranged behind the retaining pins; four one-way retaining sliding grooves are evenly and circumferentially formed in the stepping piston shaft; the adjacent one-way retaining sliding grooves are arranged oppositely; arc-shaped sliding grooves are formed in two ends of a distribution range of the one-way retaining sliding grooves; and retaining steps are arranged at bottoms of the arc-shaped sliding grooves. The bidirectional stepping piston mainly solves the problem about mechanical stepping of the fluid power sources, has the advantages of capability of realizing accurate stepping control and automatic opposite movement, simple structure, small size, large thrust, low cost, low technical difficulty, good stability and durability, good practicability and the like, can also be deemed as a stepping jack, has a very large application room in the field of mechanical control, and is easy to popularize.

Description

technical field [0001] The invention belongs to the technical field of mechanical step control of a fluid power source, and in particular relates to an automatic reversing bidirectional stepping piston. Background technique [0002] In the case of hydraulic and pneumatic power, it is a very common phenomenon for the mechanism to move step by step. Traditionally, gear mechanisms are used to complete the stepping function, but there are some problems. For example: complex structure, high processing requirements, high cost, large volume, difficult to protect, easy to break, relatively small output force, stepping accuracy is limited by many factors, high energy consumption, etc. The present invention proposes in order to solve these problems just, has very large practical space. Contents of the invention [0003] The present invention replaces the gear mechanism with an automatic reversing two-way stepping piston to complete the stepping movement function, and intends to so...

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Problems solved by technology

[0003] The present invention replaces the gear mechanism with an automatic reversing two-way stepping piston to complete the stepping movement function, and intends to solve the problems of the gear mechanism such as complex structure, high processing requirements, high cost, large volume, small output, difficult protection, and easy damage. technical problem

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