Compact type digital proportional throttle cartridge valve

A digital and compact technology, applied in the direction of valve details, valve devices, valve operation/release devices, etc., can solve problems such as analog control signal interference, and achieve the effect of improving anti-interference ability and high reliability

Pending Publication Date: 2020-06-16
SHANGHAI HAIYUE HYDRAULIC ELECTROMECHANICAL ENG COOP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the analog control signal is easi

Method used

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  • Compact type digital proportional throttle cartridge valve
  • Compact type digital proportional throttle cartridge valve
  • Compact type digital proportional throttle cartridge valve

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0032] like Figure 1 to Figure 5 As shown, a compact digital proportional throttle cartridge valve consists of a proportional throttle plug-in 1-1-0, a cover body 1-2-0, a two-position two-way high-speed switching solenoid valve 1-3-0 , Linear displacement sensor 1-4-0, shuttle valve 1-5-0, damping screw plug 1-6-0 and electronic control unit 1-7-0.

[0033] like figure 1 As shown, the shuttle valve 1-5-0, the damping screw plug 1-6-0, the linear displacement sensor 1-4-0 and the two-position two-way high-speed switch solenoid valve 1-3-0 are all installed on the cover body 1 -2-0 inside. The lower end of the cover body 1-2-0 is equipped with a proportional throttling plug-in 1-1-0. The linear displacement sensor 1-4-0 is connected to the spool 1-1-2 with a triangular window at the end of the proportional throttling plug-in 1-1-0, and is used to me...

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PUM

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Abstract

The invention relates to a compact type digital proportional throttle cartridge valve. A shuttle valve, a damping screw plug, a linear type displacement sensor and a high-speed on-off solenoid valve are arranged in a cover plate; a proportional throttle plug piece is arranged at the lower end of a cover plate body; the linear type displacement sensor is connected with a valve element of the proportional throttle plug piece; an electronic control unit is respectively connected with the linear type displacement sensor and the high-speed on-off solenoid valve; control oil ports X, Z2 and Y are respectively formed in the bottom installation surface of the cover plate body; the control oil port X is connected with a bottom oil cavity of the proportional throttle plug piece; the control oil portZ2 is connected with a side face oil cavity of the proportional throttle plug piece; the control oil port Y is connected with an oil return channel T of a whole control loop; the control oil port X is divided into two paths through the shuttle valve, one path is directly connected with the side face oil cavity of the proportional throttle plug piece, and the other path is connected with a controloil port a of the proportional throttle plug piece through the damping screw plug; and the control oil port a of the proportional throttle plug piece is connected with the control oil port Y throughthe high-speed on-off solenoid valve.

Description

technical field [0001] The invention relates to a proportional throttling cartridge valve, in particular to a digital proportional throttling cartridge valve. Background technique [0002] At present, traditional "plate valves", "superimposed valves" and their combined products based on mounting surface connections at home and abroad are facing high-power-density hydraulic products such as "threaded cartridge valves" and "two-way cartridge valves" based on cartridge connections. challenge. The high-power-density modular hydraulic control unit based on plug-in connection is in a rapid development stage. It is a highly reliable component-level product for hydraulic equipment in the medium flow (100-400L / min) demand, and has strong technical and cost advantages. [0003] Traditional products based on two-way cartridge valve technology are mainly used in the medium and large flow and power ranges of industrial hydraulics. The application has limitations, the relative output is ...

Claims

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Application Information

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IPC IPC(8): F16K31/06
CPCF16K31/0648F16K31/0668
Inventor 丁志坚姚源
Owner SHANGHAI HAIYUE HYDRAULIC ELECTROMECHANICAL ENG COOP
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