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A hydraulic rotary valve

A technology of hydraulic rotary valve and spool, which is applied in fluid pressure actuation devices, fluid pressure actuation system components, servo motor components, etc. It can solve the problems of large vibration and noise, achieve low vibration, low noise, and improve The effect of degree of automation

Active Publication Date: 2019-06-07
JIANGYIN DESHENG NEW MATERIAL FORGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has a lot of vibration and noise

Method used

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  • A hydraulic rotary valve
  • A hydraulic rotary valve
  • A hydraulic rotary valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Such as Figure 1 to Figure 18 as well as Figure 35 As shown, a hydraulic rotary valve includes a valve body 1, a spool 2 and an end cap. The valve body 1 is provided with a cavity 3 for the rotation of the spool 2. The spool 2 is in the shape of a stepped cylinder, and the cavity 3 Matching the shape of the valve core 2, the two ends of the cavity 3 along the axial direction of the valve core 2 penetrate the valve body 1, and the part of the valve body 1 penetrated by the cavity 3 is provided with an end cover capable of closing the valve body 1; The valve body 1 is provided with an oil inlet 4, an oil outlet 5 and an oil cylinder interface 6, the oil inlet 4 and the oil outlet 5 are arranged oppositely on the valve body 1, and the axes of the oil inlet 4 and the oil outlet 5 are perpendicular to The axis of the spool 2; the cylinder interface 6 is provided with two, and the two cylinder interfaces 6 are relatively arranged on the valve body 1 (that is, a T-shaped ho...

Embodiment 2

[0058] The difference with Embodiment 1 is: as Figure 19 to Figure 23 As shown, the cavity 3 runs through the valve body 1 in the axial direction of the valve core 2, and the two ends of the cavity of the valve body 1 are respectively provided with an upper cover 10 and a rotary valve bearing seat 18 for supporting the valve core 2. The upper cover 10 The outer shape of the outer shape matches the upper end of the cavity 3, the outer shape of the rotary valve bearing seat 18 matches the lower end of the cavity 3, and the center of the upper cover 10 is provided with a first through hole for the rotation of the cylinder at the top of the valve core 2 12. The center of the rotary valve bearing seat 18 is provided with a second through hole 13 communicating with the bottom end of the first oil through hole 7, and the oil cylinder interface 6 is provided with one, and the oil cylinder interface 6 is connected with the first oil through hole 7 The lower end of the cavity 3 is prov...

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PUM

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Abstract

The invention discloses a hydraulic steering valve which comprises a valve body, a valve element and an end cover. The valve element is provided with oil via holes perpendicular to one another. The rotating valve element is arranged in a cavity of the valve body. The valve body is provided with an oil port. The change and on or off of the flowing direction of liquid are achieved through rotation of the valve element, and the effect that once the valve element rotates by a circle, a piston rod, connected with the valve body, in an oil cylinder completes one-time downward pressing, stalling and upward movement is achieved. The hydraulic steering valve is simple in structure, convenient to operate and high in degree of automation, and through arrangement of a proximity switch, the valve element can stop rotating at a corresponding position to complete the required operations. The steering valve can replace an air hammer after being connected with the oil cylinder, short-stroke fast forging is achieved, vibration is small, noise is low, and the cost-performance ratio is high.

Description

technical field [0001] The invention relates to a hydraulic rotary valve. Background technique [0002] In the forging industry, both air hammer and electro-hydraulic hammer will generate noise and vibration (forging is achieved through the advancement of the piston rod in the working cylinder, the stroke is long, the vibration is large, and the noise is large). It is urgent to completely change this appearance. [0003] The structure of the current air hammer is as described in https: / / tieba.baidu.com / p / 4102184019. The action process is that when the motor drives the crankshaft linkage to rotate, and when the compression piston is pushed up in the compression cylinder, the air on the upper part of the compression cylinder is compressed. The air enters the upper part of the working cylinder through the upper rotary valve, and the air in the lower part of the working cylinder enters the compression cylinder through the lower rotary valve. At this time, under the action of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/08F15B21/08
CPCF15B13/08F15B13/0846F15B21/08
Inventor 徐德生
Owner JIANGYIN DESHENG NEW MATERIAL FORGING