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Hydraulic cylinder buffer structure

A buffer structure and hydraulic cylinder technology, applied in the field of hydraulic cylinders, can solve the problems of complex processing and high cost, and achieve the effects of low cost, simple structure, and convenient processing and manufacturing

Active Publication Date: 2020-04-07
XUZHOU YONGJIA HYDRAULIC EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This structure is complicated to process and high in cost

Method used

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  • Hydraulic cylinder buffer structure

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Embodiment Construction

[0012] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0013] Such as figure 1 As shown, a hydraulic cylinder buffer structure includes a cylinder body 1 and a piston rod 2; a buffer chamber 3 is provided inside the cylinder body 1; terminal 4.

[0014] The improvements of this embodiment are:

[0015] The buffer cavity 3 is a cylindrical blind hole. The buffer end 4 is cylindrical, and the center of the buffer end 4 is provided with a mounting hole 4-1; the position near the inside of the mounting hole 4-1 is ...

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Abstract

The invention discloses a hydraulic cylinder buffering structure, and belongs to the technical field of hydraulic cylinders. The hydraulic cylinder buffering structure comprises a cylinder body and apiston rod; a buffering cavity is formed in the cylinder body; a piston is arranged on the piston rod; the inner end of the piston rod is provided with a buffering end which is matched with the buffering cavity; a cylindrical blind hole is formed in the buffering cavity; the buffering end is cylindrical; an assembly hole is formed in the center of the buffering end; a flow guiding groove is formedin a part, which is close to the inner side of the assembly hole, of the assembly hole; the flow guiding groove enables the inner side and the outer side of the assembly hole to communicate with eachother; a buffering plug is slidably arranged in the assembly hole; an axially through flow guiding hole is formed in the buffering plug; and a spring is arranged between the buffering plug and the bottom of the assembly hole. According to the hydraulic cylinder buffering structure, when the buffering end is matched with the buffering cavity for buffering, a flow is adjusted through the spring andthe oil pressure of the buffering cavity, so that the flow has a stable changing process; the whole structure is simple; manufacturing is convenient; and cost is low.

Description

technical field [0001] The invention relates to the technical field of hydraulic cylinders, in particular to a hydraulic cylinder buffer structure. Background technique [0002] When the hydraulic cylinder works at high speed, if the piston directly collides with the end cover of the hydraulic cylinder, the end cover will be damaged under the action of inertial force and hydraulic pressure, and a large impact load will be generated, which will have an adverse effect on the hydraulic system. The hydraulic buffer device can decelerate to zero when the piston reaches the end of stroke. The classic buffer device tries to seal part of the oil in the oil discharge chamber within a certain distance before the piston reaches the terminal, and discharges it through the orifice, thereby generating an appropriate buffer pressure to achieve the purpose of deceleration. [0003] In order to make the hydraulic cylinder have a smooth buffering process, the buffering end and the buffering ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B15/14F15B15/22
CPCF15B15/1423F15B15/1447F15B15/1457F15B15/226
Inventor 王世永
Owner XUZHOU YONGJIA HYDRAULIC EQUIP