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Composite hydraulic cylinder with buffer capacity and method

A cushioning capacity, hydraulic cylinder technology, applied in the field of composite hydraulic cylinders, can solve problems such as piston cylinder damage

Active Publication Date: 2011-07-27
CHINA NAT HEAVY MACHINERY RES INSTCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the external tensile load suddenly disappears, such as when the material stretched by the tension stretching machine breaks suddenly, the piston cylinder will be affected by the impact. If there is no protection measure, the piston cylinder will be damaged.

Method used

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  • Composite hydraulic cylinder with buffer capacity and method
  • Composite hydraulic cylinder with buffer capacity and method

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Experimental program
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specific Embodiment approach

[0017] Such as figure 1 As shown, the composite hydraulic cylinder with cushioning function includes at least the main plunger cylinder and the operating cylinder, the master cylinder head 1 of the master plunger cylinder and the master cylinder body 4 are sealed and connected as one, and the main plunger 3 is in the master cylinder Inside the body 4, the main plunger 3 is a hollow body, the operating cylinder body 5 is socketed in the cavity of the main plunger 3, the piston rod 2 extends into the main cylinder body 4 in the operating cylinder body 5, and the piston The rod 2 is sealed by a sealing sleeve 7 in the operating cylinder body 5 . The operating cylinder block 5 is connected with the machine head 6 which bears the external load.

[0018] When the operating cylinder body 5 and the machine head 6 bearing the external load drive a small load and a large stroke, when the load is between x-x1 and the working stroke is between y1 and y2, the operating cylinder moves; th...

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Abstract

The invention belongs to a complex hydraulic cylinder, and in particular relates to a complex hydraulic cylinder with buffer capacity and a method thereof. The invention is characterized in that: the complex hydraulic cylinder at least comprises a main plunger type cylinder and an operation cylinder; the main cover (1) and the main cylinder body (4) of the main plunger type cylinder are tightly connected into one piece; a main plunger (3) is arranged inside the main cylinder body (4), and is a hollow chamber body; the operation cylinder body (5) is enclosed inside the hollow chamber body of the main plunger (3); a piston rod (2) is arranged inside the operation cylinder body (5) and extends to the C-shaped chamber of the main cylinder body (4); the piston rod (2) arranged inside the operation cylinder body (5) is sealed by a gland cover (7) so as to absorb the impulse force produced when an external pull load disappears suddenly to protect the hydraulic cylinder.

Description

technical field [0001] The invention belongs to a composite hydraulic cylinder, in particular to a composite hydraulic cylinder with buffer capacity and a method thereof. Background technique [0002] When hydraulic cylinders are used to drive the motion of a handpiece that provides a tensile load, such as a tension stretcher or similar equipment. Piston cylinders are often used as operating cylinders to operate under small loads and large strokes. However, when the external tensile load suddenly disappears, such as when the material stretched by the tension stretching machine breaks suddenly, the piston cylinder will be subjected to the impact, and if there is no protection measure, the piston cylinder will be damaged. Contents of the invention [0003] The object of the present invention is to provide a composite hydraulic cylinder and method with cushioning capacity, so as to absorb the impact force generated when the external tensile load suddenly disappears, and prot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B15/20F15B15/14
Inventor 张超王殿楹汪恩辉赵永平黄维勇陈峰左雁冰常瑜
Owner CHINA NAT HEAVY MACHINERY RES INSTCO