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Crushing machine, hydraulic control system and hydraulic cylinder

A hydraulic control system and hydraulic cylinder technology, applied in fluid pressure actuating devices, grain processing, etc., can solve the problems of laborious and time-consuming adjustment of the spacing between crushing rollers, inconvenient operation, etc., and achieve the effect of improving crushing quality and low noise

Inactive Publication Date: 2012-03-28
ZOOMLION HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to provide a crusher and its hydraulic control system and hydraulic cylinder to solve the problems of laborious and time-consuming adjustment of the distance between crushing rollers and inconvenient operation in the prior art

Method used

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  • Crushing machine, hydraulic control system and hydraulic cylinder
  • Crushing machine, hydraulic control system and hydraulic cylinder
  • Crushing machine, hydraulic control system and hydraulic cylinder

Examples

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Embodiment Construction

[0021] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0022] As a first aspect of the present invention, such as figure 1 As shown, the present invention provides a hydraulic cylinder, including a cylinder, a guide sleeve 7 and a piston rod 4, wherein the cylinder includes a first cylinder 1 and a second cylinder 2, and the first end of the first cylinder 1 is connected to the The first end of the second cylinder 2 is connected, and a spacer 3 is arranged between the first end of the first cylinder 1 and the first end of the second cylinder 2; the guide sleeve 7 is arranged on the second cylinder 2 The second end; the piston rod 4 is arranged in the cavity formed by the cylinder tube and the guide sleeve 7, and the first piston 5 and the second piston 6 are arranged at intervals on the piston rod 4; th...

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Abstract

The invention provides a crushing machine, a hydraulic control system and a hydraulic cylinder thereof. The hydraulic cylinder comprises a cylinder barrel, a guide sleeve and a piston rod, wherein the cylinder barrel comprises a first barrel body and a second barrel body; the first end of the first barrel body is connected to the first end of the second barrel body; a separating sleeve is arranged between the first end of the first barrel body and the first end of the second barrel body; the guide sleeve is arranged at the second end of the second barrel body; the piston rod is arranged in a cavity which is formed by the cylinder barrel and the guide sleeve; a first piston and a second piston are arranged on the piston rod at an interval; the separating sleeve is arranged around the piston rod in a sliding sealing manner; and the first piston and the second piston are respectively located on two sides of the separating sleeve. Compared with a mechanical control mode, a hydraulic control mode which is utilized to control a space between rollers in the hydraulic cylinder has the advantages of labor saving, convenience and low noise.

Description

technical field [0001] The invention relates to the field of crushers, and more specifically, to a crusher, a hydraulic control system and a hydraulic cylinder thereof. Background technique [0002] In the prior art, pulverized coal in iron and steel plants is usually crushed by a mechanical crusher. This adjustment method uses a connecting rod operating mechanism to transmit force through gears to adjust the distance between the rollers. Therefore, the adjustment is laborious, time-consuming, and difficult to operate. Inconvenient downside. Contents of the invention [0003] The present invention aims to provide a crusher, its hydraulic control system, and hydraulic cylinder to solve the problems of laborious and time-consuming adjustment of the distance between crushing rollers and inconvenient operation in the prior art. [0004] In order to solve the above technical problems, according to the first aspect of the present invention, a hydraulic cylinder is provided, inc...

Claims

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Application Information

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IPC IPC(8): F15B15/14B02C4/32
Inventor 庹春菊
Owner ZOOMLION HEAVY IND CO LTD
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