CN210371401U - Continuous pressurization system of oil circuit - Google Patents
Continuous pressurization system of oil circuit Download PDFInfo
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- CN210371401U CN210371401U CN201921451792.9U CN201921451792U CN210371401U CN 210371401 U CN210371401 U CN 210371401U CN 201921451792 U CN201921451792 U CN 201921451792U CN 210371401 U CN210371401 U CN 210371401U
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Abstract
The utility model discloses an oil circuit continuous pressurization system, which comprises a pressurization cylinder and a hydraulic control reversing valve, wherein a top cavity of a piston HP of the pressurization cylinder is respectively connected with a low-pressure oil input pipeline and a high-pressure oil output pipeline, the pipelines are respectively provided with a liquid inlet one-way valve and a liquid outlet one-way valve, and a bottom cavity LP of the piston of the pressurization cylinder is connected with the low-pressure oil input pipeline when the hydraulic control reversing valve is at the lower position; when the pressure cylinder is positioned at the top dead center, an oil return cavity of the pressure cylinder is communicated with an upper cavity of the hydraulic control reversing valve, when the pressure cylinder is positioned at the bottom dead center, a top cavity of a piston HP of the pressure cylinder is communicated with an upper cavity of the hydraulic control reversing valve, the top cavity of the piston HP of the pressure cylinder is communicated with a low-pressure oil input pipeline, automatic reversing of the hydraulic control reversing valve can be achieved, after reversing, a bottom cavity of a piston LP of the pressure cylinder is connected with the low-pressure oil input pipeline, high-pressure oil output and secondary reversing of the hydraulic control reversing valve. The utility model provides an automatic switching-over of liquid accuse switching-over valve, realize simplifying the pressure boost process to the continuous pressure boost of oil circuit, control simple and convenient.
Description
Technical Field
The utility model relates to a hydraulic control technical field especially relates to a continuous turbocharging system of oil circuit.
Background
At present, an oil circuit supercharger used in domestic tunnel excavation equipment needs to lead out one path of hydraulic power oil in a hydraulic system independently, and two manual reversing valves and a supercharging valve are operated alternately, so that the supercharging of an oil circuit can be realized. Referring to the attached drawing 1, when a handle of a reversing valve 5 is pulled back, hydraulic oil supplies liquid to a system through a P port of the reversing valve, liquid is supplied to a pressure cylinder 3 to return, meanwhile liquid is supplied to a tensioning (anchor) jack 1 through a three-position four-way reversing valve 2, the tensioning (anchor) jack 1 extends out, when the pressure reaches the pump station pressure, the handle of the reversing valve 5 is pushed outwards, the middle position is pushed to the bottom, liquid supply is started to the lower cavity of the pressure cylinder 3, namely the pressure cylinder 3 starts to work, the rated pressure of the system is set by an overflow safety valve 4, the handle of the reversing valve 5 is loosened after tensioning is completed, the reversing valve 2 is operated, the handle of the reversing valve 2 is pulled back, the tensioning (anchor) jack 1 works reversely, and the handle of the reversing valve 2 is loosened after the tensioning (anchor) is completed, so that the tensioning (anchor) jack can.
Therefore, the conventional oil-way supercharger has the disadvantages of complicated supercharging process, complex operation, low supercharging efficiency, poor supercharging effect and high failure rate. This application is on prior art basis, creates a new oil circuit continuous supercharging system, makes its continuous pressure boost effect that can simple and efficient realization hydraulic pressure oil circuit in hydraulic system to easy operation.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an oil circuit continuous supercharging system makes its can simple and convenient swift realization hydraulic pressure oil circuit's continuous pressure boost effect in hydraulic system to easy operation, thereby overcome current oil circuit booster not enough.
In order to solve the technical problem, the utility model provides an oil circuit continuous pressurization system, including pressure cylinder and hydraulic control change-over valve, the HP top cavity of pressure cylinder is connected with low-pressure oil input pipeline and high-pressure oil output pipeline respectively, just be equipped with feed liquor check valve and play liquid check valve on low-pressure oil input pipeline and the high-pressure oil output pipeline respectively, the LP bottom cavity of pressure cylinder is in when the hydraulic control change-over valve is in the next, be connected with low-pressure oil input pipeline, when the pressure cylinder piston is in top dead center position, its oil return chamber with the epicoele intercommunication of hydraulic control change-over valve, when the pressure cylinder piston is in bottom dead center position, its piston HP top cavity with the epicoele intercommunication of hydraulic control change-over valve, then through the intercommunication of the piston HP top cavity of pressure cylinder and low-pressure oil input pipeline, can realize the automatic switching-over of hydraulic control change-over valve, after the direction is changed, the LP bottom cavity of the booster cylinder is connected with a low-pressure oil input pipeline, so that the output of high-pressure hydraulic oil and the automatic direction change of the hydraulic control reversing valve are realized, and the continuous pressurization of an oil way is realized by reciprocating in the way.
The manual reversing valve is a three-position four-way reversing valve, a P port and a T port of the manual reversing valve are used for being connected with a low-pressure oil supply system, a B port of the manual reversing valve is connected with a low-pressure oil input pipeline, the B port of the manual reversing valve is communicated with a cavity on one side of the execution equipment through a second connecting pipeline, a hydraulic control one-way valve is arranged on the second connecting pipeline, and an A port of the manual reversing valve is communicated with an oil return cavity of the pressure cylinder, the hydraulic control one-way valve and the cavity on the other side of the execution equipment respectively.
In a further improvement, when the manual reversing valve is in a right position, the low-pressure oil supply system supplies oil to the port B; and when the manual reversing valve is in the left position, the low-pressure oil supply system supplies oil to the port A.
Further improved, the manual reversing valve adopts an electromagnetic reversing mode for reversing.
After adopting such design, the utility model discloses following advantage has at least:
1. the utility model discloses the oil circuit cooperation of oil circuit continuous supercharging system through pressure cylinder and liquid accuse switching-over valve realizes the reciprocating motion of piston or valve body in pressure cylinder and the liquid accuse switching-over valve, has solved the automatic switching-over of liquid accuse switching-over valve to and the automatic pressure boost of pressure cylinder piston, realize the continuous pressure boost to hydraulic oil, simplified the pressure boost process, avoided current oil circuit booster pressure boost process loaded down with trivial details, the operation is complicated, the problem of supercharging inefficiency.
2. The utility model discloses continuous turbocharging system of oil circuit is still through setting up the manual reversing valve, and this manual reversing valve adopts tribit cross electromagnetic directional valve, can realize guaranteeing controlling of continuous pressure boost, pressurize and oil return state to low pressure oil feeding system's input, makes the continuous turbocharging system of this oil circuit easy operation convenient, and the pressure boost is effectual, and the fault rate is low.
Drawings
The foregoing is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clear, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
Fig. 1 is a schematic structural view of a conventional oil passage supercharger.
Fig. 2 is a schematic structural diagram of the oil-way continuous pressurization system of the present invention.
Detailed Description
Referring to fig. 2, the oil path continuous pressurization system of this embodiment includes a pressurization cylinder 11 and a pilot operated directional control valve 13, an HP top cavity 111 of the pressurization cylinder 11 is respectively connected to a low pressure oil input pipeline and a high pressure oil output pipeline, the low pressure oil input pipeline and the high pressure oil output pipeline are respectively provided with an inlet check valve 14 and an outlet check valve 16, an LP bottom cavity 112 of the pressurization cylinder 11 is connected to the low pressure oil input pipeline when the pilot operated directional control valve 13 is in a lower position, an oil return cavity 113 of the pressurization cylinder 11 is communicated with an upper cavity of the pilot operated directional control valve 13 when a piston of the pressurization cylinder 11 is in a top dead center position, a HP top cavity of the piston of the pressurization cylinder is communicated with the upper cavity of the pilot operated directional control valve, and automatic directional control of the pilot operated directional control valve 13 can be realized by communication between the HP top cavity 111 of the pressurization cylinder and the low pressure oil input pipeline, and, the LP bottom cavity 112 of the pressure cylinder 11 is connected with a low-pressure oil input pipeline, so that the output of high-pressure hydraulic oil and the automatic reversing of the hydraulic control reversing valve 13 are realized, and the continuous pressurization of the oil path is realized by reciprocating. It should be noted that the descriptions of "upper", "lower", "top" and "bottom" in the present application are made with reference to the drawings of the present specification, and are used for explaining the technical contents of the present application in detail, and should not be construed as any limitation to the scope of the present application.
In order to facilitate the operation of the oil path connection pressurization system, the pressurization system further comprises a manual reversing valve 12, the manual reversing valve 12 is a three-position four-way electromagnetic reversing valve, and a P port and a T port of the manual reversing valve are used for being connected with a low-pressure oil supply system. The port B of the manual directional valve is connected with a low-pressure oil input pipeline, the port B of the manual directional valve 12 is also communicated with a rodless cavity 101 of the anchor cable tensioner 10 through a second connecting pipeline, a hydraulic control one-way valve 15 is arranged on the second connecting pipeline, and the port a of the manual directional valve 12 is respectively communicated with an oil return cavity 113 of the pressure cylinder 11, the hydraulic control one-way valve 15 and a rod cavity 102 of the anchor cable tensioner 10.
The continuous pressurization principle of the oil way continuous pressurization system of the embodiment is as follows: when the manual reversing valve 12 is in the right position, the low-pressure oil supply system supplies oil to the port B, then the oil reaches the top cavity 111 of the piston HP of the pressure cylinder 11 through the liquid inlet one-way valve 14 to push the piston to move downwards, and when the piston reaches the bottom dead center, the top cavity 111 of the piston HP of the pressure cylinder 11 is communicated with the upper cavity of the hydraulic control reversing valve 13 to push the valve body of the hydraulic control reversing valve 13 to move downwards, so that the automatic reversing of the hydraulic control reversing valve 13 is realized; at the moment, the oil supplied by the low-pressure oil supply system passes through the lower cavity of the hydraulic control reversing valve 13, reaches the bottom cavity 112 of the piston LP of the pressure increasing valve 11, pushes the piston to move upwards, compresses a liquid column in the top cavity 111 of the piston HP, forms high-pressure hydraulic oil, is supplied to the rodless cavity 101 of the anchor rod tensioner 10 from the liquid outlet one-way valve 16, and pushes the anchor rod to extend out; when the piston of the booster cylinder reaches the top dead center, the oil return cavity 113 of the booster cylinder 11 is communicated with the upper cavity of the hydraulic control reversing valve 13, the pressure oil in the lower cavity of the hydraulic control reversing valve 13 pushes the valve body to move upwards, the hydraulic control reversing valve 13 automatically reverses again, and the oil way is connected and pressurized in such a reciprocating manner.
When the manual reversing valve 12 is in the neutral position, the oil path is in an automatic pressure maintaining state.
When the manual reversing valve 12 is in the left position, the low-pressure oil supply system supplies oil to the port a, supplies oil to the side of the rod cavity 102 of the anchor rod tensioner 10, and simultaneously backs up the hydraulic control one-way valve 15 to supply oil to the non-rod cavity 101 of the anchor rod tensioner 10, so that the return stroke of the oil cylinder of the anchor rod tensioner 10 is realized.
The utility model discloses the oil circuit cooperation of pressure cylinder and liquid accuse switching-over valve is passed through to the continuous turbocharging system of oil circuit, has solved the automatic switching-over of liquid accuse switching-over valve, realizes having simplified the pressure boost process to the continuous pressure boost of oil circuit, controls simple and conveniently.
The above description is only for the preferred embodiment of the present invention, and not intended to limit the present invention in any way, and those skilled in the art can make various modifications, equivalent changes and modifications using the above-described technical content, all of which fall within the scope of the present invention.
Claims (4)
1. An oil-way continuous pressurization system is characterized by comprising a pressurization cylinder and a hydraulic control reversing valve, wherein a piston HP top cavity of the pressurization cylinder is respectively connected with a low-pressure oil input pipeline and a high-pressure oil output pipeline, a liquid inlet one-way valve and a liquid outlet one-way valve are respectively arranged on the low-pressure oil input pipeline and the high-pressure oil output pipeline, a piston LP bottom cavity of the pressurization cylinder is connected with the low-pressure oil input pipeline when the hydraulic control reversing valve is in a lower position, an oil return cavity of the pressurization cylinder is communicated with an upper cavity of the hydraulic control reversing valve when a piston of the pressurization cylinder is in a top dead center position, a piston HP top cavity of the pressurization cylinder is communicated with the upper cavity of the hydraulic control reversing valve, and automatic reversing of the hydraulic control reversing valve can be realized through the communication between the piston HP top cavity of the pressurization cylinder and the low-pressure oil input pipeline, and the cavity at the bottom of the piston LP of the booster cylinder is connected with a low-pressure oil input pipeline, so that the output of high-pressure oil and the automatic reversing of the hydraulic control reversing valve are realized, and the continuous boosting of an oil way is realized by reciprocating in the way.
2. The oil circuit continuous pressurization system according to claim 1, further comprising a manual directional valve, wherein the manual directional valve is a three-position four-way directional valve, a port P and a port T of the manual directional valve are used for being connected with a low-pressure oil supply system, a port B of the manual directional valve is connected with the low-pressure oil input pipeline, the port B of the manual directional valve is further communicated with a cavity on one side of the execution equipment through a second connecting pipeline, a hydraulic control one-way valve is arranged on the second connecting pipeline, and a port a of the manual directional valve is respectively communicated with an oil return cavity of the pressurization cylinder, the hydraulic control one-way valve and a cavity on the other side of the execution equipment.
3. The oil circuit continuous pressurization system according to claim 2, wherein when the manual reversing valve is in the right position, the low-pressure oil supply system supplies oil to the port B; and when the manual reversing valve is in the left position, the low-pressure oil supply system supplies oil to the port A.
4. The oil circuit continuous pressurization system according to claim 3, wherein the manual reversing valve adopts an electromagnetic reversing mode for reversing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921451792.9U CN210371401U (en) | 2019-09-03 | 2019-09-03 | Continuous pressurization system of oil circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921451792.9U CN210371401U (en) | 2019-09-03 | 2019-09-03 | Continuous pressurization system of oil circuit |
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| CN210371401U true CN210371401U (en) | 2020-04-21 |
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| CN201921451792.9U Active CN210371401U (en) | 2019-09-03 | 2019-09-03 | Continuous pressurization system of oil circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727857A (en) * | 2020-12-29 | 2021-04-30 | 萨驰智能装备股份有限公司 | Hydraulic pressurization system and tire vulcanizer |
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2019
- 2019-09-03 CN CN201921451792.9U patent/CN210371401U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727857A (en) * | 2020-12-29 | 2021-04-30 | 萨驰智能装备股份有限公司 | Hydraulic pressurization system and tire vulcanizer |
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