2d electro-hydraulic proportional relief valve with direct acting guidance and control
An electro-hydraulic proportional and overflow valve technology, which is applied in the direction of fluid pressure actuators, servo motor components, mechanical equipment, etc., can solve the problems of inability to realize high pressure and large flow control, complex structure, etc., and achieve structural integration and small size , flexible and good effect
Active Publication Date: 2018-02-27
无锡市海卓力克液压机械有限公司
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The existing direct-acting electro-hydraulic proportional relief valve is directly driven by the proportional electromagnet to move the spool. Its structure is simple, but due to the limitation of the output thrust of the proportional electromagnet, it cannot realize high pressure and large flow control.
In the existing pilot-controlled electro-hydraulic proportional relief valve, the pilot valve controls the pressure change in the sensitive chamber of the main valve to generate relatively large hydrostatic pressure to drive the movement of the main valve core, which can realize high-pressure and large-flow control, but its structure is complex
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0038] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.
[0039] Such as figure 1 , figure 2 , image 3 , Figure 4 as well as Figure 5 As shown, the preferred embodiment of the present invention provides a 2D electro-hydraulic proportional relief valve with integrated direct-action guidance and control, which includes a relief valve 1 , a proportional solenoid 2 , a compression-torsion coupling 3 and a sleeve 4 .
[0040] Specifically, such as figure 2 , image 3 as well as Figure 4 As shown, the overflow valve 1 includes a valve body 11 and a valve core 12 installed in the valve body 11 . There is a vertical through hole 14 in the middle of the middle shoulder of the spool 12, and the vertical through hole 14 communicates with the high pressure hole 16 at the left...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a 2D electric-hydraulic proportional overflow valve integrating direct drive and guide control. The 2D electric-hydraulic proportional overflow valve comprises an overflow valve body, a proportional electromagnet and a pressure-torsion coupler. The pressure-torsion coupler comprises a first connecting part, a second connecting part, a first elastic spiral part, a second elastic spiral part, a corrugated pipe, a connecting part and a mounting plate, wherein the spiral direction of the first elastic spiral part is identical with the spiral direction of the second elastic spiral part, and the first connecting part, the second connecting part, the first elastic spiral part, the second spiral part, the corrugated pipe, the connecting part and the mounting plate are integrated. The 2D electric-hydraulic proportional overflow valve has the advantages that the pressure-torsion coupler is used, relative torsion of the first elastic spiral part and the second elastic spiral part occurs to drive the first connecting part to rotate when armature pushes the second connecting part to move towards a valve element, and the 2D electric-hydraulic proportional overflow valve is free of friction in transmission, good in flexibility, small in size, simple to machine and assemble, and the like.
Description
technical field [0001] The invention relates to the field of electro-hydraulic proportional control systems, and more specifically relates to a 2D electro-hydraulic proportional overflow valve integrated with direct motion guidance and control. Background technique [0002] The electro-hydraulic proportional valve is a hydraulic component between the on-off hydraulic valve and the electro-hydraulic servo valve using proportional control technology. Since the electro-hydraulic proportional valve can be combined with the electronic control device, it is convenient to carry out arithmetic processing on various input and output signals to realize complex control functions. At the same time, the electro-hydraulic proportional valve has the advantages of anti-pollution, low cost and fast response, and has been widely used in industrial production. [0003] The existing electro-hydraulic proportional overflow valves can generally adopt two structural design schemes of direct-actin...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/02
CPCF15B13/02
Inventor 沈姗姗高奇峰胡红钱刘灿
Owner 无锡市海卓力克液压机械有限公司