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Mining equipment hydraulic oil cylinder with protection device

A protection device and hydraulic cylinder technology, applied in mechanical equipment, fluid pressure actuators, cylinders, etc., can solve problems such as heavy load on the piston rod and damage to the piston rod

Active Publication Date: 2021-09-10
ZHAOYUAN HUAFENG MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a mining equipment hydraulic cylinder with a protection device, which solves the pr

Method used

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  • Mining equipment hydraulic oil cylinder with protection device
  • Mining equipment hydraulic oil cylinder with protection device
  • Mining equipment hydraulic oil cylinder with protection device

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Embodiment Construction

[0028] 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 creative efforts fall within the protection scope of the present invention.

[0029] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner" and "surrounding" orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than Any indication or implication that a referenced component or element must have a particular orientation, be constructed and operate in a particular orientation should not be co...

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Abstract

The invention discloses a mining equipment hydraulic oil cylinder with a protection device, and relates to the technical field of mining equipment. The mining equipment hydraulic oil cylinder comprises a cylinder body and a main piston, an inner cavity is formed in the cylinder body, the inner cavity is in sliding fit with the main piston, the upper end of the main piston is fixedly connected with a fixed shaft, and a buffer cavity is formed in the fixed shaft. A movable shaft, the fixed shaft and a first spring are used, the fixed shaft and the movable shaft can be protected, and the load is reduced; a fixed disc, a lifting frame, a lifting rod, an auxiliary piston, an air cavity and an oil return cavity are used, the device can transfer part of pressure of the movable shaft to a second spring and a third spring, and the pressure relief effect is achieved; and a first air path, a second air path, a third air path and a fourth air path are used, and the structure can improve the heat dissipation effect.

Description

technical field [0001] The invention belongs to the technical field of mining equipment, in particular to a mining equipment hydraulic oil cylinder with a protection device. Background technique [0002] Mining equipment mainly refers to the general term for mining, screening, transportation and other special equipment used in various mine production processes such as coal, ferrous metals and non-ferrous metals. Mining equipment includes mining equipment. Mining equipment is the mechanical equipment that directly participates in tunneling and mine mining in the mineral mining system, such as perforators, shaft drilling rigs, raise drilling rigs, roadheaders, mining excavators, sinking machinery, Powder charging machinery, mine loading machinery, etc., and these devices contain a large number of hydraulic cylinder devices. [0003] However, the traditional hydraulic cylinder device puts a heavy load on the piston rod, and long-term use is easy to damage the piston rod. The p...

Claims

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Application Information

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IPC IPC(8): F15B15/14F15B15/22F16J7/00F16J10/02
CPCF15B15/14F15B15/1457F15B15/149F15B15/1485F15B15/1428F15B15/226F15B15/227F15B21/048
Inventor 刘志刚张润达陈增辉
Owner ZHAOYUAN HUAFENG MACHINERY
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