CN204828110U - Shield constructs integrated washing function piece of screw conveyer hydraulic pressure closed system double speed valve - Google Patents
Shield constructs integrated washing function piece of screw conveyer hydraulic pressure closed system double speed valve Download PDFInfo
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- CN204828110U CN204828110U CN201520552094.3U CN201520552094U CN204828110U CN 204828110 U CN204828110 U CN 204828110U CN 201520552094 U CN201520552094 U CN 201520552094U CN 204828110 U CN204828110 U CN 204828110U
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- double speed
- hydraulic motor
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- damping hole
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Abstract
The utility model discloses a shield constructs integrated washing function piece of screw conveyer hydraulic pressure closed system double speed valve, be fixed in hydraulic motor on, and integratedly in the functional block have overflow valve, damping hole, heat oily shuttle valve, pilot operated directional control valve and a double speed valve, the oily shuttle valve of heat is connected to the overflow valve, is provided with the damping hole on the pipeline between overflow valve and the oily shuttle valve of heat, the oily shuttle valve of heat is connected with hydraulic motor, the double speed valve is connected to the pilot operated directional control valve, and hydraulic motor is connected to the double speed valve, the A mouth of functional block and B mouth respectively with hydraulic motor's A1 mouth and B1 mouth intercommunication, PC termination control oil, control hydraulic motor's high low -speed switches over, M1 end and the pressure measurement head of M2 termination setting at damping hole both ends, L end and D1 termination drain tap, oil return opening always return oil pipe with the shield structure and are connected. The utility model discloses compact structure can realize mating with hydraulic motor is compact, can adjust the flow of changing oil according to the demand, effectual solution fluid ageing with the intensification problem, can be fine be applied to the frequent operating mode of switching over of the high low -speed of hydraulic motor to guarantee the backpressure when hydraulic motor float gauge height dispatch changes.
Description
Technical field
The utility model relates to hydraulic closed system deep fat permute field, is specially the integrated pre-washing function block of a kind of shield screw conveyer hydraulic closed system double speed valve.
Background technique
The closed system that shield screw conveyer hydraulic driving often adopts radial plunger piston motor to form, closed system inner fluid is always in running order, high low pressure transforms frequent, the easy temperature rise of fluid is aging, various aspects of performance declines, very large harm is caused to system, therefore needs supplementary a part of fresh oil to displace the deep fat of isodose simultaneously; Radial plunger piston motor is double-speed motor simultaneously, the change can carrying out discharge capacity according to different operating modes realizes the switching of high low speed, radial plunger piston motor is when small displacement transports at a high speed merit simultaneously, needs certain back pressure to ensure the dynamic track transporting plunger, in order to avoid wearing and tearing appear in plunger.
Therefore, there is provided one can displace deep fat from closed system, in order to prevent fluid temperature rise aging, can realize motor height low speed switching controls simultaneously, and ensureing the new function valve block of the back pressure of motor small displacement lower plunger work, has been a good problem to study.
Summary of the invention
In order to overcome above-mentioned deficiency of the prior art, the utility model provides one can displace deep fat from closed system, in order to prevent fluid temperature rise aging; Integrated double speed valve realizes motor height low speed switching controls; Integrated pilot operated directional control valve ensures the integrated pre-washing function block of shield screw conveyer hydraulic closed system double speed valve of the back pressure of motor small displacement lower plunger work simultaneously.
The purpose of this utility model is achieved in that
The integrated pre-washing function block of shield screw conveyer hydraulic closed system double speed valve, the integrated pre-washing function block of described double speed valve is fixed on oil hydraulic motor 6, and function block is integrated with relief valve 1, damping hole 2, deep fat shuttle valve 3, pilot operated directional control valve 4 and double speed valve 5; Described relief valve 1 connects deep fat shuttle valve 3, the pipeline between relief valve 1 and deep fat shuttle valve 3 is provided with damping hole 2; Deep fat shuttle valve 3 is connected with oil hydraulic motor 6; Pilot operated directional control valve 4 connects double speed valve 5, double speed valve 5 connecting fluid pressure motor 6; The A mouth of described function block is communicated with B1 mouth with the A1 mouth of oil hydraulic motor 6 respectively with B mouth; PC termination controls oil, and the high low speed of hydraulic control motor 6 switches; M1 end and M2 termination are arranged on the pressure-measuring head at damping hole 2 two ends; L end and D1 termination drain tap, return opening is connected with the total return tube of shield structure.
Described damping hole 2 is replaceable structure.
positive beneficial effect:the utility model compact structure, mate compact with oil hydraulic motor can be realized, flow of changing oil can be regulated according to demand, effective solution oil degradation and intensification problem, can be good at being applied to the operating mode that oil hydraulic motor height low speed frequently switches, and back pressure when ensureing that oil hydraulic motor small displacement runs up.
Accompanying drawing explanation
Fig. 1 is control principle drawing of the present utility model;
Fig. 2 is the utility model physical form structural drawing;
In figure be: relief valve 1, damping hole 2, deep fat shuttle valve 3, pilot operated directional control valve 4, double speed valve 5, oil hydraulic motor 6.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
The integrated pre-washing function block of shield screw conveyer hydraulic closed system double speed valve, the integrated pre-washing function block of described double speed valve is fixed on oil hydraulic motor 6, and function block is integrated with relief valve 1, damping hole 2, deep fat shuttle valve 3, pilot operated directional control valve 4 and double speed valve 5; Described relief valve 1 connects deep fat shuttle valve 3, the pipeline between relief valve 1 and deep fat shuttle valve 3 is provided with damping hole 2; Deep fat shuttle valve 3 is connected with oil hydraulic motor 6; Pilot operated directional control valve 4 connects double speed valve 5, double speed valve 5 connecting fluid pressure motor 6; The A mouth of described function block is communicated with B1 mouth with the A1 mouth of oil hydraulic motor 6 respectively with B mouth; PC termination controls oil, and the high low speed of hydraulic control motor 6 switches; M1 end and M2 termination are arranged on the pressure-measuring head at damping hole 2 two ends, for measuring restriction two ends pressure reduction; L end and D1 termination drain tap, return opening is connected with the total return tube of shield structure.
Described damping hole 2 is replaceable structure.
When screw conveyor rotates, high pressure side and low voltage side oil pressure act on the control mouth of deep fat shuttle valve simultaneously, and because high pressure side oil pressure is greater than low voltage side, deep fat shuttle valve spool moves under the promotion of high pressure side oil, and low voltage side is communicated with.Low voltage side oil is by deep fat shuttle valve, and fuel tank got back to by damping hole and relief valve, completes the displacement of hydrothermal solution.Damping hole is designed to replaceable structure, and damping hole two ends pressure reduction regulates relatively fixing by relief valve, now only relevant with the flow area of damping hole by the flow of damping hole, so the damping hole can changing different size according to demand realizes different replacement amounts.When motor be in run up time, PC end realizes the conversion of motor internal oil circuit realize the switching of motor displacement by controlling oil and the commutation of double speed valve, thus realize the switching of high low speed, it is through-flow that simultaneously pilot operated directional control valve commutation realizes motor low voltage side oil circuit, ensure the required back pressure of motor piston low voltage side, ensure plunger motion track, achieve deep fat displacement integrated with the height of dual-speed control, structure is compacter.
The utility model be utilize the relation of deep fat shuttle valve and flow area and pressure reduction to control the principle of flow, the working principle of radial plunger piston motor designs, by deep fat shuttle valve, the deep fat of closed system low voltage side is drawn, by the match and regulate flow of damping hole and relief valve to reach the object of fluid displacement; Motor height speed control system is realized by double speed valve; The back pressure of motor needed for small displacement lower plunger proper motion track is ensured by pilot operated directional control valve.
The utility model compact structure, mate compact with oil hydraulic motor can be realized, flow of changing oil can be regulated according to demand, effective solution oil degradation and intensification problem, can be good at being applied to the operating mode that oil hydraulic motor height low speed frequently switches, and back pressure when ensureing that oil hydraulic motor small displacement runs up.
Above embodiment is only for illustration of preferred implementation of the present utility model; but be of the present utility modelly not limited to above-mentioned mode of execution; in the ken that described exercising ordinary skill possesses; the any amendment done within spirit of the present utility model and principle, equivalently to substitute and improvement etc., it all should be encompassed within the technological scheme scope of request protection of the present utility model.
Claims (2)
1. the integrated pre-washing function block of shield screw conveyer hydraulic closed system double speed valve, it is characterized in that: the integrated pre-washing function block of described double speed valve is fixed on oil hydraulic motor (6), and function block is integrated with relief valve (1), damping hole (2), deep fat shuttle valve (3), pilot operated directional control valve (4) and double speed valve (5); Described relief valve (1) connects deep fat shuttle valve (3), the pipeline between relief valve (1) and deep fat shuttle valve (3) is provided with damping hole (2); Deep fat shuttle valve (3) is connected with oil hydraulic motor (6); Pilot operated directional control valve (4) connects double speed valve (5), double speed valve (5) connecting fluid pressure motor (6); The A mouth of described function block is communicated with B1 mouth with the A1 mouth of oil hydraulic motor (6) respectively with B mouth; PC termination controls oil, and the high low speed of hydraulic control motor (6) switches; M1 end and M2 termination are arranged on the pressure-measuring head at damping hole (2) two ends; L end and D1 termination drain tap, return opening is connected with the total return tube of shield structure.
2. the integrated pre-washing function block of shield screw conveyer hydraulic closed system double speed valve according to claim 1, is characterized in that: described damping hole (2) is replaceable structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520552094.3U CN204828110U (en) | 2015-07-28 | 2015-07-28 | Shield constructs integrated washing function piece of screw conveyer hydraulic pressure closed system double speed valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520552094.3U CN204828110U (en) | 2015-07-28 | 2015-07-28 | Shield constructs integrated washing function piece of screw conveyer hydraulic pressure closed system double speed valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204828110U true CN204828110U (en) | 2015-12-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520552094.3U Active CN204828110U (en) | 2015-07-28 | 2015-07-28 | Shield constructs integrated washing function piece of screw conveyer hydraulic pressure closed system double speed valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204828110U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661989A (en) * | 2018-07-25 | 2018-10-16 | 北京亿美博科技有限公司 | A kind of digital hydraulic system realized screw conveyor rotating speed and be precisely controlled |
| CN110159618A (en) * | 2019-06-28 | 2019-08-23 | 无锡市钻通工程机械有限公司 | A kind of hydraulic closed flush loop |
| CN114033766A (en) * | 2021-10-22 | 2022-02-11 | 宁波斯达弗液压传动有限公司 | Modular assembly integrated valve block applied to hydraulic motor side |
-
2015
- 2015-07-28 CN CN201520552094.3U patent/CN204828110U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661989A (en) * | 2018-07-25 | 2018-10-16 | 北京亿美博科技有限公司 | A kind of digital hydraulic system realized screw conveyor rotating speed and be precisely controlled |
| CN110159618A (en) * | 2019-06-28 | 2019-08-23 | 无锡市钻通工程机械有限公司 | A kind of hydraulic closed flush loop |
| CN114033766A (en) * | 2021-10-22 | 2022-02-11 | 宁波斯达弗液压传动有限公司 | Modular assembly integrated valve block applied to hydraulic motor side |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |