Unlock instant, AI-driven research and patent intelligence for your innovation.

An electromagnetic hydraulic valve

A hydraulic valve, electromagnetic technology, applied in the direction of fluid pressure actuation device, fluid pressure actuation system components, servo motor components, etc., can solve the problems of large hydraulic shock, operator fatigue, etc., to solve the problem of large shift shock, structural Simple, cleverly designed effects

Inactive Publication Date: 2019-12-27
HENAN MECHANICAL & ELECTRICAL VOCATIONAL COLLEGE
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an electromagnetic hydraulic valve, which solves the problem that the traditional machine-hydraulic shifting operation has a large hydraulic impact at the moment of shifting, and frequent shifting makes the operator very prone to fatigue.

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • An electromagnetic hydraulic valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] see figure 1 , the present invention provides a technical solution: an electromagnetic hydraulic valve, including an oil inlet 1 and a pressure measuring port 11, the oil inlet 1 is connected with a torque converter 2 and a pressure reducing valve 9, and the output of the pressure reducing valve 9 There is a pressure measuring port 11 on the end, and the pressure measuring port 11 is connected with a direction gear 12 and a speed gear 13 through a pipeline. The direction gear 12 includes a forward gear KR and a reverse gear KV, and the speed gear 13 includes the first gear K1, the second gear position K2, the third gear position K3, and the fourth gear position K4, the pressure measuring port 11 is connected with a clutch oil cylinder 20 . The forward gear KR, the reverse gear KV, the first gear K1, the second gear K2, the third gear K3, and the fourth gear K4 are all two-position four-way reversing valves. The control end of the directional valve is provided with a so...

Embodiment 2

[0026] The input end of the pressure reducing valve 9 is provided with a throttle valve 10, and the pressure reducing valve 9 includes a slide valve 22, a pressure reducing valve 23, and an orifice 21, and the right end of the slide valve 22 is connected with the throttle hole 21, and the throttle The orifice 21 is connected to the pressure measuring port 11 , the spool valve 22 and the pressure reducing valve 23 are connected in parallel, and the working oil inlet of the pressure reducing valve 23 is connected to the working oil outlet of the spool valve 22 .

Embodiment 3

[0028] The pressure measuring port 11 is connected with a pressure gauge 19 through threads. The pressure gauge 19 is used to measure the pressure of the pressure measuring port 11, and whether the electromagnetic hydraulic valve is normal can be observed through the change of the pressure gauge 19 of the pressure measuring port 11 during operation. When the pressure at the pressure measuring port 11 shows no change or jumps at the moment of gear shifting, the hydraulic valve is in an abnormal state. When the pressure of the pressure measuring port 11 shows a linear change at the moment of gear shifting, the hydraulic valve is in a normal state.

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

No PUM Login to View More

Abstract

The invention discloses an electromagnetic hydraulic valve. The electromagnetic hydraulic valve includes an oil inlet and a pressure measuring opening; the oil inlet communicates with a torque converter and a pressure reducing valve, and the pressure measuring opening is formed in the output end of the pressure reducing valve and is connected with a direction gear and a speed gear; the direction gear comprises a forwarding gear KR and a retreating gear KV, and the speed gear comprises a first gear K1, a second gear K2, a third gear K3 and a fourth gear K4; the pressure measuring opening is connected with a clutch cylinder; an overflow valve is connected between the oil inlet and the torque converter; the input end of the torque converter is connected with a torque converter safety valve through a pipeline, and the output end of the torque converter is connected with a counterbalance valve through the pipeline; the output end of the counterbalance valve is connected with an oil pump radiator through the pipeline, and the oil pump radiator is connected with a lubricating oil path through the pipeline; and the output end of the torque converter safety valve is connected with an oil tank through the pipeline. According to the electromagnetic hydraulic valve, the pressure reducing valve can slowly adjust the pressure in the gearshifting process, and the problems that hydraulic impact is high at the moment of gearshifting, and fatigue is easy to generate due to frequent gearshifting by traditionally adopting machine fluid to conduct gearshifting operation.

Description

technical field [0001] The invention relates to the technical field of hydraulic valves, in particular to an electromagnetic hydraulic valve. Background technique [0002] The product scope of China's construction machinery industry is mainly divided into general equipment manufacturing and special equipment manufacturing. In 1979, the State Planning Commission and the Ministry of the First Machinery Industry compiled the "Seventh Five-Year" development plan for the development of China's construction machinery industry. The product range covered 18 major categories of products in the construction machinery industry. The previous national machinery industry plans have confirmed 18 categories of construction machinery products, and their product range has continued to this day. These 18 categories of products include excavation machinery, earth shoveling machinery, engineering lifting machinery, industrial vehicles, compaction machinery, piling machinery, concrete machinery,...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/02F15B21/0423F15B21/041
CPCF15B13/021F15B21/041
Inventor 朱振伟王东雪全磊杨茜牛超王临铭
Owner HENAN MECHANICAL & ELECTRICAL VOCATIONAL COLLEGE