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Two-point mechanical locking device

A mechanical locking and front locking technology, which is applied in the direction of fluid pressure actuating devices, etc., can solve the problems of reduced service life of seals, low precision of mechanical locking, complex structure, etc., and achieve compact structure, small size, and cost reduction Effect

Pending Publication Date: 2017-12-01
沈阳长城液压机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under some working conditions, the existing hydraulic locking and mechanical locking cannot meet the working requirements, the hydraulic locking is prone to leakage, and the service life of the seal is reduced due to the influence of time and operating frequency; the mechanical locking accuracy is not high, and the structure is complicated

Method used

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  • Two-point mechanical locking device
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Examples

Experimental program
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Embodiment Construction

[0020] To make the above-mentioned purposes, features and advantages of the present invention more obvious and understandable, below in conjunction with the attached Figure 1 ~ Figure 3 The present invention will be further described in detail with specific embodiments.

[0021] The two-point mechanical locking device adopted in this embodiment includes a cylinder 19 and a piston rod 1 arranged in the cylinder 19, and the end of the piston rod 1 in the cylinder 19 is connected with a front lock with a guide tip 29 in sequence. Tighten the piston 25 and the piston 26, and install the rear locking piston 20 with the guide tip 29 at the other end opposite to the end of the piston rod 1 in the cylinder 19, wherein the front locking piston 25 (such as the rear locking piston 20) the angle between the guide tips 29 of the section is 105 degrees. A front positioning groove 30 and a rear positioning groove 31 are provided on the inner wall of the cylinder 19 . Piston 26 includes fe...

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PUM

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Abstract

The invention discloses a two-point mechanical locking device, and relates to a hydraulic locking device. The two-point mechanical locking device adopts a structure including a split type piston and two locking pistons. When the split type piston reaches the stroke requirement, the two locking pistons move to control locking and unlocking correspondingly. The locking pistons can be driven to move through mechanical force generated by springs, balls are controlled to rise and fall, and the two locking pistons are clamped into annular grooves after arriving at the locking positions, and the mechanical locking function is achieved. The two-point mechanical locking device has the functions of being capable of stably bearing external loads for a long time without any displacement after moving is stopped, and being subjected to two-end positioning and locking, compact in structure and small in size, the cost is reduced, and maintenance is convenient.

Description

technical field [0001] The invention relates to a hydraulic locking device, in particular to a double-point mechanical locking device. Background technique [0002] Hydraulic locking is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating or swinging motion. Mechanical locking means that the mechanical structure remains stationary under the action of a force. Under some working conditions, the existing hydraulic locking and mechanical locking cannot meet the working requirements, the hydraulic locking is prone to leakage, and the service life of the seal is reduced due to the influence of time and operating frequency; the mechanical locking accuracy is not high, and the structure is complex. Contents of the invention [0003] In view of the deficiencies in the prior art, the object of the present invention is to provide a dual-point mechanical locking device, which has the advantages of reasonable design, compact str...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/26
CPCF15B15/261
Inventor 刘凤霞兰涛李广进石阳
Owner 沈阳长城液压机械制造有限公司