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A Hydraulic Actuator with Cushioning at the Beginning of Stroke

A hydraulic actuator and stroke technology, applied in the direction of fluid pressure actuating devices, etc., can solve the problems of complex structure of the hydraulic system, large installation space, increased cost of use and maintenance of the hydraulic system, etc., to achieve convenient installation and maintenance, low cost of use Low, simple structure effect

Active Publication Date: 2022-03-29
BEIJING INST OF SPECIALIZED MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Although the above-mentioned external buffering method is flexible and adjustable, it will occupy a large installation space, make the structure of the hydraulic system more complicated, and increase the cost of the use and maintenance of the hydraulic system

Method used

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  • A Hydraulic Actuator with Cushioning at the Beginning of Stroke
  • A Hydraulic Actuator with Cushioning at the Beginning of Stroke
  • A Hydraulic Actuator with Cushioning at the Beginning of Stroke

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Embodiment Construction

[0031] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0032] The invention relates to an actuator for reciprocating linear motion in a hydraulic system, in particular to a hydraulic actuator capable of realizing a buffer function at the initial end of a working stroke, that is, a hydraulic actuator for buffering at the initial end of a stroke.

[0033] Such as Figure 1 to Figure 6 As shown, the hydraulic cylinder mainly includes a cylinder body 1, a cylinder bottom 2, a piston 4, a buffer piston 7, a guide sleeve 9, a static seal 10, a locking sleeve 11, a dust-proof ring 13, a piston rod 14, and a lock nut 15. Rod head 16 and bearings of different specifications, support rings and dynamic seals, etc., wherein the two ends of the cylinder 1 are respectively provided with...

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Abstract

The invention relates to a hydraulic cylinder with cushioning at the beginning of a stroke, and relates to the technical field of fluid transmission. The invention realizes the buffering function of the hydraulic actuator at the initial end of the working stroke by constructing a new type of internal buffer structure, and can solve the problem that the traditional internal buffer structure is difficult to achieve buffering at the initial end of the actuator; compared with the external buffer mode of the actuator, It has the advantages of simple structure, convenient installation and maintenance, and low use cost.

Description

technical field [0001] The invention relates to the technical field of fluid transmission, and relates to a reciprocating linear motion actuator in a hydraulic system, in particular to a hydraulic cylinder for buffering at the beginning of a stroke. Background technique [0002] The hydraulic actuator is an important reciprocating actuator in the hydraulic system, and its actuation performance has an important impact on the system. When the movement speed of the hydraulic actuator is fast or the load inertia is large, it is easy to produce an impact at the beginning or end of the working stroke of the actuator. Among them, the impact at the initial end of the working stroke mainly acts on the load through the piston rod of the actuator, causing the load to receive a large impact load instantaneously, resulting in vibration and noise, and even motion instability. The impact at the end of the working stroke is mainly caused by the rigid impact of the piston of the actuator on...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B15/14F15B15/22
CPCF15B15/1423F15B15/1447F15B15/22
Inventor 张振华张鑫曹秀荣李春萍王飞李大让
Owner BEIJING INST OF SPECIALIZED MACHINERY
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