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Integrated valve with oil circuit selection function for controlling hydraulic motor brake

A technology of hydraulic motors and brakes, which is applied in the direction of servo motor components, fluid pressure actuators, mechanical equipment, etc., and can solve problems such as reduced service life, brake wear, and potential safety hazards of the main engine, and achieve the effect of improving service life

Active Publication Date: 2013-10-09
SAIKESI HYDRAULIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the control oil and the working oil cannot realize differential step control, the brakes are severely worn, greatly reducing their service life, and bringing safety hazards to the entire main engine

Method used

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  • Integrated valve with oil circuit selection function for controlling hydraulic motor brake
  • Integrated valve with oil circuit selection function for controlling hydraulic motor brake
  • Integrated valve with oil circuit selection function for controlling hydraulic motor brake

Examples

Experimental program
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Effect test

Embodiment Construction

[0029] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] Figure 1 to Figure 13 Shown is the structural representation of the present invention.

[0031] The reference signs are: valve body 1, main hydraulic chamber 1a, first valve chamber 1b, second valve chamber 1c, third valve chamber 1d, first control oil port 11, second control oil port 12, third Oil hole 13, fourth control oil port 14, fifth control oil port 15, first check valve assembly 2, first valve seat 21, first oil inlet hole 21a, first valve ball 22, first ball seat 23 , the first radial hole 23a, the first axial hole 23b, the second one-way valve assembly 3, the second valve seat 31, the second oil inlet hole 31a, the second valve ball 32, the second ball seat 33, the second Radial hole 33a, second axial hole 33b, throttle assembly 4, valve core 41, valve head 411, first damping hole 411a, valve stem 412, second damping annula...

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Abstract

The invention discloses an integrated valve with an oil circuit selection function for controlling a hydraulic motor brake. The integrated valve comprises a valve body, wherein a main hydraulic cavity is formed in the valve body, and is horizontally and symmetrically connected with a first valve cavity and a second valve cavity; a first check valve component and a second check valve component which are uniaxially opened towards the main hydraulic cavity are arranged in the first valve cavity and the second valve cavity respectively; the lower end of the main hydraulic cavity is connected witha third valve cavity; a throttle valve component is arranged in the third valve cavity; and hydraulic oil which flows into the first check valve component and hydraulic oil which flows into the second check valve component are self-selected on the basis of pressure, so that the hydraulic oil in a higher circuit flows into the main hydraulic cavity, and then the throttle valve component is driven to act. The integrated valve has a compact structure, is convenient to use, can conveniently adjust delay time as required, and has the function of selecting two paths of control oil, so that the control oil and working oil can be controlled asynchronously, the condition that the brake can be released and stopped at the right time is ensured, and the service life of the brake is prolonged.

Description

technical field [0001] The invention relates to the technical fields of construction machinery and hydraulic control, in particular to an integrated valve with automatic selection function, in particular to an integrated valve with oil circuit selection for hydraulic motor brake control. Background technique [0002] In the current prior art, in order to consider its safety, most engineering machinery is equipped with parking brakes on hydraulic actuators, such as rotary motors and travel motors. The parking brake is generally built into a hydraulic motor, and the braking force is applied by a spring and released hydraulically. However, because the control oil and the working oil cannot realize differential step control, the brakes are severely worn, greatly reducing their service life, and bringing potential safety hazards to the entire main engine. Therefore, how to improve the service life of the brake through oil circuit control and solve the common problems existing in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/02
Inventor 高志明吴赛珍
Owner SAIKESI HYDRAULIC TECH CO LTD
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