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 wasting power and consumption, and achieve large reversing and pressure adjustment range, flexible reversing, and work reliable effect

Inactive Publication Date: 2008-08-27
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 in conjunction with the accompanying drawings, and the embodiments are used to illustrate the present invention, but not to limit it in any way.

[0020] The invention is a multifunctional valve group which combines 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—the two plungers alternately supply oil. In order to ensure the vacuum degree of the oil suction chamber and prevent the oil supply pressure from failing, the present invention changes the oil distribution check valve 2 from spring reset to forced oil pressure. Reset structure. That is to say, when one plunger discharges oil, the check valve at the outlet of the other plunger is forcibly closed (see figure 1 , 2 ). The combination of...

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PUM

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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 automatic hydraulic 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 applicable to 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 in particular relates to a hydraulic pressure-regulating automatic reversing combined valve for a double-line dry oil lubrication system. Background technique [0002] There are three main types of reversing mechanisms for electric grease pumps commonly used in dual-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 reversing valve can only be used in the lubrication system with a pressure lower than 20MPa. The electric reversing valve uses a micro motor to drive the reducer to drag the slide valve to reversing and position the limit switch. It can be used in the 40MPa lubrication system, but because of its complicated mechanism, it is not easy to adjust, and it is easy to cause the reversing to be out of control. Most of the exi...

Claims

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Application Information

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