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Hydraulic pressure pressure-regulating automatic reverse combined valve for double line grease lubricating system

A lubricating system and automatic reversing technology, applied in lubricating oil control valves, lubricating parts, engine lubrication, etc., can solve problems such as consumption and wasted power, and achieve flexible reversing, large range of reversing pressure regulation, and smooth operation reliable effect

Inactive Publication Date: 2011-07-20
义小毛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the system pressure is too high, it will bring unnecessary waste and power consumption

Method used

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  • Hydraulic pressure pressure-regulating automatic reverse combined valve for double line grease lubricating system
  • Hydraulic pressure pressure-regulating automatic reverse combined valve for double line grease lubricating system
  • Hydraulic pressure pressure-regulating automatic reverse combined valve for double line grease lubricating system

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Embodiment Construction

[0019] The specific embodiments of the present invention will be further described with reference to the accompanying drawings, and the embodiments are used to illustrate the present invention without any restriction on it.

[0020] The invention is a multifunctional valve group combining a plunger type oil distribution check valve, a pressure regulating valve, a safety valve, a reversing slide valve, a pressure gauge and a pressure sensor. The structure and functions are introduced as follows:

[0021] 1. Oil distribution check valve-oil is supplied alternately by two plungers. In order to ensure the vacuum of the suction chamber and prevent the failure of the oil supply pressure, the present invention changes the oil distribution check valve 2 from spring reset to pressure oil forced Reset the structure. In other words, when one plunger discharges oil, the one-way valve at the outlet of the other plunger is forcibly closed (see figure 1 , 2 ). The combination of oil distributio...

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Abstract

The invention belongs to the hydraulic reversing valve technical field, particularly relates to an automatic hydraulic pressure-regulation reversing combination valve used for a double line grease lubricating system, and provides a reversing valve which is applicable to the grease supply of high-pressure electric grease pumps as well as middle and low pressure electric grease pumps. The automatichydraulic pressure-regulation reversing combination valve used for a double line grease lubricating system comprises a valve body, the valve body is provided with two grease inlets and two grease outlets, and three reversing slide valves are arranged inside the valve body. The invention is characterized in that: two symmetrical plunger type grease distribution check valves are arranged between the grease inlets and the slide valves, the grease distribution check valves and a reversing slide valve grease path are connected with a pressure-regulation safety valve, and one grease outlet is provided with a pressure sensor interface. Compared with the prior art, the valve has the following advantages that: the valve adopts the hydraulic control to automatically change directions, is applicableto the lubrication systems less than 40MPa pressure, and has big reversing pressure-regulation range (from 3.5MPa to 35MPa), flexible direction change, no noise, strong anti-pollution capacity and reliable work.

Description

Technical field [0001] The invention belongs to the technical field of hydraulic reversing valves, and specifically relates to a hydraulic pressure regulating automatic reversing combined valve for a double-line dry oil lubrication system. Background technique [0002] There are mainly three types of reversing mechanisms of electric grease pumps often used in double-line dry oil lubrication systems: 1. Electromagnetic reversing valve, 2. Electric reversing valve, 3. Hydraulic reversing valve. Due to the limitation of electromagnetic force, the electromagnetic directional valve can only be used for lubricating systems with pressures lower than 20MPa. The electric reversing valve uses a micro-motor to drive the reducer to drive the spool valve to change direction and position the limit switch. It can be used in a 40MPa lubrication system, but because of its complicated mechanism, it is not easy to adjust, and it is easy to cause out of control in reversing. Most of the existing hy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16N23/00F16N25/00F16N7/38
Inventor 义小毛
Owner 义小毛
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