CN103316799A - High-pressure water conservancy injection system - Google Patents
High-pressure water conservancy injection system Download PDFInfo
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- CN103316799A CN103316799A CN2013101648638A CN201310164863A CN103316799A CN 103316799 A CN103316799 A CN 103316799A CN 2013101648638 A CN2013101648638 A CN 2013101648638A CN 201310164863 A CN201310164863 A CN 201310164863A CN 103316799 A CN103316799 A CN 103316799A
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Abstract
The invention discloses a high-pressure water conservancy injection system which comprising a closed hydraulic pump and radial plunger motors, wherein the closed hydraulic pump comprises a main pump communicated with an oil tank, a swash plate servo oil cylinder provided with a telescopic end connected with the main pump and driving the main pump; an overflow valve is connected onto the oil path of the main pump; a control device for adjusting the swash plate inclination angle of the swash plate servo oil cylinder is further communicated with the oil path of the swash plate servo oil cylinder; the closed hydraulic pump are provided with a high-pressure oil outlet and an oil inlet; an oil inlet of each radial plunger motor is communicated with the high-pressure oil outlet, an oil outlet of each radial plunger motor is communicated with the low-pressure oil inlet. According to the structural design of the high-pressure water conservancy injection system, stepless speed change of a high-pressure water conservancy injection pump can be realized, so that hydraulic jet pressure can be controlled at any time.
Description
Technical field
The present invention relates to high pressure water conservancy spraying technique field, more particularly, relate to a kind of high pressure water conservancy spraying system.
Background technology
It is the new and high technology that development in recent years is got up that the high pressure water conservancy is sprayed, and the advantages such as it has, and medium is cheap, concentration of energy, efficiency of transmission are high, environmental protection are widely used in the industries such as oil, mining, metallurgy.
High pressure water conservancy jet pump of the prior art generally all is by motor direct-drive, perhaps utilizes engine to drive mechanically.Yet above-mentioned two kinds of type of drive all can not realize the infinitely variable speeds of high pressure water conservancy jet pump in allowing the range of speeds, thereby also just can not control at any time the pressure of water-jet according to the working condition of reality, and then increase the potential safety hazard of high pressure water conservancy jet pump.
In sum, how realizing the infinitely variable speeds of high pressure water conservancy jet pump, and then can control at any time the pressure of water-jet, is present those skilled in the art's urgent problem.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of high pressure water conservancy spraying system, the structural design of this high pressure water conservancy spraying system can realize the infinitely variable speeds of high pressure water conservancy jet pump, and then can control at any time the pressure of water-jet.
In order to achieve the above object, the invention provides following technical scheme:
A kind of high pressure water conservancy spraying system comprises closed type hydraulic pump and radial plunger piston motor;
Described closed type hydraulic pump comprises the main pump that is communicated with fuel tank, telescopic end is connected and drives described main pump with described main pump swash plate servo-cylinder, be connected with overflow valve on the oil circuit of described main pump, also be communicated with the control device for the swash plate angle of inclination of regulating the swash plate servo-cylinder on the oil circuit of described swash plate servo-cylinder;
Described closed type hydraulic pump has high pressure oil-out and oil-in, and the oil-in of wherein said radial plunger piston motor is communicated with described high pressure oil-out, and oil-out is communicated with described low pressure oil-in.
Preferably, described closed type hydraulic pump also has be used to the first pressure tap of the high pressure hydraulic fluid port of measuring described swash plate servo-cylinder with for the second pressure tap of measuring the low pressure hydraulic fluid port, and overflow valve is serially connected with between described high pressure oil-out and the second pressure tap.
Preferably, described control device is specially the one way pressure-reducing valve on the oil circuit that is serially connected with described swash plate servo-cylinder.
Preferably, described control device comprises handle and the first one way pressure-reducing valve and the second one way pressure-reducing valve that are arranged in parallel on the oil circuit of described swash plate servo-cylinder, the flow direction of the first one way pressure-reducing valve and the second one way pressure-reducing valve is opposite, and the opening degree of selectable adjusting the first one way pressure-reducing valve of described handle or the second one way pressure-reducing valve.
Preferably, also be serially connected with the first filter on the oil circuit of described main pump.
Preferably, the quantity of described radial plunger piston motor is two and is arranged in parallel.
Preferably, also be provided with selector valve between described high pressure oil-out and two radial plunger piston motors being arranged in parallel.
Preferably, also be serially connected with high pressure accumulator on the oil circuit of described main pump.
Preferably, described closed type hydraulic pump also offers for the 3rd pressure tap of measuring the high pressure oil-out with for the 4th pressure tap of measuring the low pressure oil-in, also be serially connected with flushing valve between described the 3rd pressure tap and the 4th pressure tap, and the oil-out of described flushing valve is communicated with the enclosure interior cooling duct of described closed type hydraulic pump.
Preferably, also be serially connected with slippage pump between described main pump and the fuel tank
High pressure water conservancy spraying system provided by the invention comprises closed type hydraulic pump and radial plunger piston motor, wherein closed type hydraulic pump comprises main pump and the swash plate servo-cylinder that is communicated with fuel tank, wherein the telescopic end of swash plate servo-cylinder is connected with main pump and Host actuating pump work, be connected with overflow valve on the oil circuit of main pump, also be communicated with the control device for the swash plate angle of inclination of regulating the swash plate servo-cylinder on the oil circuit of swash plate servo-cylinder, namely this control device can be regulated the flow of the hydraulic oil of swash plate servo-cylinder internal oil passages.In addition, closed type hydraulic pump has high pressure oil-out and oil-in, and wherein the oil-in of radial plunger piston motor is communicated with the high pressure oil-out, and the oil-out of radial plunger piston motor is communicated with described low pressure oil-in.
In the high pressure water conservancy spraying system that the embodiment of the invention provides, be connected with overflow valve on the oil circuit of main pump, overflow valve can be regulated the pressure of the oil circuit of main pump, utilize simultaneously control device to regulate the flow of the hydraulic oil of swash plate servo-cylinder internal oil passages, and then the driving force of passing through the swash plate servo-cylinder is regulated the flow of the hydraulic oil of main pump inside, thereby realize regulating the rotating speed of radial plunger piston motor, realize electrodeless variable-speed, can regulate according to the working condition of reality the rotating speed of radial plunger piston motor, the pressure of control water-jet.Wherein overflow valve can be direct-acting overflow valve.Main pump by the high pressure oil-out to the oil-in fuel feeding of piston motor radially, the drive radial plunger piston motor rotates, radial plunger piston motor is used for driving high-pressure hydraulic injection plunger pump, the oil-out of radial plunger piston motor is communicated with fuel tank, therefore the hydraulic oil of radial plunger piston motor flows back to again fuel tank, forms a closed hydraulic loop.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the high pressure water conservancy spraying system that Fig. 1 provides for the embodiment of the invention;
The structural representation of the control device that Fig. 2 provides for the embodiment of the invention.
Mark is as follows in the accompanying drawing:
1-overflow valve, 2-control device, 3-the first filter, 4-closed type hydraulic pump, 5-high pressure accumulator, 6-selector valve, 7-radial plunger piston motor, 8-flushing valve, 9-the second filter, 41-slippage pump, 42-main pump, 43-three position five-way valve, 21-the first one way pressure-reducing valve, 22-handle, 23-the second one way pressure-reducing valve;
A-high pressure oil-out, B-low pressure oil-in, M1-the 3rd pressure tap, M2-the 4th pressure tap, M3-the first filter exit, M4-the first pressure tap, M5-the second pressure tap, M6-the first filter access port, L1-the second drain tap, L2-the first drain tap.
The specific embodiment
The object of the present invention is to provide a kind of high pressure water conservancy spraying system, the structural design of this high pressure water conservancy spraying system can realize the infinitely variable speeds of high pressure water conservancy jet pump, and then can control at any time the pressure of water-jet.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
See also Fig. 1-Fig. 2, the high pressure water conservancy spraying system that the embodiment of the invention provides comprises closed type hydraulic pump 41 and radial plunger piston motor 7, wherein closed type hydraulic pump 41 comprises main pump 42 and the swash plate servo-cylinder that is communicated with fuel tank, wherein the telescopic end of swash plate servo-cylinder is connected with main pump 42 and Host actuating pump 42 work, be connected with overflow valve 1 on the oil circuit of main pump 42, also be communicated with the control device 2 for the swash plate angle of inclination of regulating the swash plate servo-cylinder on the oil circuit of swash plate servo-cylinder, namely this control device 2 can be regulated the flow of the hydraulic oil of swash plate servo-cylinder internal oil passages.In addition, closed type hydraulic pump 41 has high pressure oil-out A and oil-in, and wherein the oil-in of radial plunger piston motor 7 is communicated with high pressure oil-out A, and the oil-out of radial plunger piston motor 7 is communicated with described low pressure oil-in B.
In the high pressure water conservancy spraying system that the embodiment of the invention provides, be connected with overflow valve 1 on the oil circuit of main pump 42, overflow valve 1 can be regulated the pressure of the oil circuit of main pump 42, utilize simultaneously control device 2 to regulate the flow of the hydraulic oil of swash plate servo-cylinder internal oil passages, and then the driving force of passing through the swash plate servo-cylinder is regulated the flow of the hydraulic oil of main pump 42 inside, thereby realize regulating the rotating speed of radial plunger piston motor 7, realize electrodeless variable-speed, can regulate according to the working condition of reality the rotating speed of radial plunger piston motor 7, the pressure of control water-jet.Wherein overflow valve 1 can be direct-acting overflow valve 1.Main pump 42 by high pressure oil-out A to the oil-in fuel feeding of piston motor 7 radially, driving radial plunger piston motor 7 rotates, radial plunger piston motor 7 is used for driving high-pressure hydraulic injection plunger pump, the oil-out of radial plunger piston motor 7 is communicated with fuel tank, therefore the hydraulic oil of radial plunger piston motor 7 flows back to again fuel tank, forms a closed hydraulic loop.
When the operating pressure of high pressure oil-out A surpassed the setup pressure value of overflow valve 1, the spool of overflow valve 1 was opened the beginning overflow, and the hydraulic oil of overflow enters
In order further to optimize technique scheme, closed type hydraulic pump 41 also has be used to the first pressure tap M4 of the high pressure hydraulic fluid port of measuring described swash plate servo-cylinder with for the second pressure tap M5 that measures the low pressure hydraulic fluid port, and overflow valve 1 is serially connected with between high pressure oil-out A and the second pressure tap M5.Wherein the first pressure tap M4 is connected with the high pressure hydraulic fluid port, the first pressure tap M4 is connected with the low pressure hydraulic fluid port, and the second pressure tap M5 can be communicated with fuel tank, and overflow valve 1 also can directly be communicated with fuel tank, be that overflow valve 1 one ends are communicated with high pressure oil-out A, the other end is communicated with the second pressure tap M5.It is like this then when the operating pressure of high pressure oil-out A surpasses the setup pressure value of overflow valve 1, the spool of overflow valve 1 is opened the beginning overflow, the hydraulic oil of overflow enters the second pressure tap M5 and promotes servo swash plate oil cylinder to the opposite direction motion of working, reduce or stop the flow output of Closed Hydraulic oil pump, so only need adjust the opening pressure of overflow valve 1, just can regulate the operating pressure of closed type hydraulic pump 41, namely regulate the jet pressure of high pressure water conservancy spraying system.
Wherein, control device 2 can be specially the one way pressure-reducing valve on the oil circuit that is serially connected with the swash plate servo-cylinder, wherein check valve not only can be controlled the flow direction of the oil circuit internal hydraulic pressure oil of swash plate servo-cylinder, can also control the flow of internal hydraulic pressure oil, control the driving force of swash plate servo-cylinder with this, and then reach the purpose of regulating main pump 42 and radial plunger piston motor 7.
In addition, control device 2 can also comprise handle 22 and the first one way pressure-reducing valve 21 and the second one way pressure-reducing valve 23 that are arranged in parallel on the oil circuit of swash plate servo-cylinder, the flow direction of the first one way pressure-reducing valve 21 and the second one way pressure-reducing valve 23 is opposite, and the opening degree of handle 22 selectable adjusting the first one way pressure-reducing valves 21 or the second one way pressure-reducing valve 23, namely the first one way pressure-reducing valve 21 and the second one way pressure-reducing valve 23 are in parallel rear on the oil circuit that is connected in the swash plate servo-cylinder, and through the flow direction of the hydraulic oil of the first one way pressure-reducing valve 21 and opposite through the flow direction of the hydraulic oil of the second one way pressure-reducing valve 23, handle 22 can selectable adjusting the first one way pressure-reducing valve 21 or the opening degree of the second one way pressure-reducing valve 23, namely when handle 22 is regulated the opening degree of the first one way pressure-reducing valve 21, the second one way pressure-reducing valve 23 is closed, when handle 22 was regulated the opening degree of the second one way pressure-reducing valve 23, the first one way pressure-reducing valve 21 was closed.So then can be communicated with by selecting the first one way pressure-reducing valve 21 or the second one way pressure-reducing valve 23, select corresponding the flow direction, and can adjust by the first one way pressure-reducing valve 21 or the second one way pressure-reducing valve 23 flow of the hydraulic oil of swash plate servo-cylinders, regulate the flow of hydraulic oil of the oil circuit of main pump 42 with this.
In order to prolong the service life of this high pressure water conservancy spraying system, prevent that impurity dust etc. from entering the oil circuit of main pump 42, can also be on the oil circuit of main pump 42 serial connection control the first filter 3 also.Namely the oil circuit at main pump 42 arranges the first filter access port M6 and the first filter exit M3.
Wherein can be arranged in parallel two radial plunger piston motors 7, can certainly advance to arrange one or three, be not construed as limiting at this.Further, can between high pressure oil-out A and two radial plunger piston motors 7 that are arranged in parallel, selector valve 6 be set, like this then can realize two switchings between the radial plunger piston motor 7, guarantee that is used for a normal operation, another is for subsequent use, and then has guaranteed that high pressure water conservancy spraying system can be not out of service because of the fault of a radial plunger piston motor 7.
Utilize selector valve 6 to select one of them radial plunger piston motor 7 to carry out work, when one of them radial plunger piston motor 7 breaks down, utilize selector valve 6 to switch to another radial plunger piston motor 7.
In order to reduce pressure fluctuation, can also on the oil circuit of main pump 42, also be serially connected with high pressure accumulator 5.Preferably, high pressure accumulator 5 can be arranged between high pressure oil-out A and the radial plunger piston motor 7, the pressure fluctuation when absorbing normal operation, the stationarity of assurance whole system work.
Wherein, closed type hydraulic pump 41 also offers for the 3rd pressure tap M1 that measures high pressure oil-out AA with for the 4th pressure tap M2 that measures low pressure oil-in B, between the 3rd pressure tap M1 and the 4th pressure tap M2, also be serially connected with flushing valve 8, and the oil-out of flushing valve 8 is communicated with the enclosure interior cooling duct of closed type hydraulic pump 41.Like this then flushing valve 8 utilizes the pressure between the 3rd pressure tap M1 and the 4th pressure tap M2 that the oil-out of hydraulic oil by flushing valve 8 entered the enclosure interior cooling duct of closed type hydraulic pump 41 and absorb heat, then flow back to fuel tank from the cooling duct, with this closed type hydraulic pump 41 is carried out radiating treatment.Wherein, on closed type hydraulic pump 41 housings two drain taps can be arranged, i.e. the first drain tap L2 and the second drain tap L1, the oil-out of flushing valve 8 can be communicated with the first drain tap L2, and the pressure of high pressure oil-out A is much larger than the pressure of high pressure oil-in, so the pressure of the 3rd pressure tap M1 that is communicated with high pressure oil-out A is much larger than the pressure of the 4th pressure tap M2 that is communicated with low pressure oil-in B, the spool that pressure differential between the 3rd pressure tap M1 and the 4th pressure tap M2 promotes flushing valve 8 moves, make hydraulic oil enter flushing valve 8 from the 4th pressure tap M2 of closed type hydraulic pump 41, final by the first drain tap L2 closed type hydraulic pump 41 housings, circulate and a week flow back to fuel tank by the second drain tap L1, take away the heat that closed type hydraulic pump 41 work produce.
Preferably, can also be serially connected with slippage pump 41 between main pump 42 and the fuel tank, and the second filter 9 can also be set between slippage pump 41 and the fuel tank.Slippage pump 41 can continue to replenish the hydraulic oil that whole circulating oil path lacks by inlet port inhalant liquid force feed.
In addition, the swash plate servo-cylinder can be communicated with control device 2 and overflow valve 1 by three position five-way valve 43.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from the spirit or scope of the present invention, in other embodiments realization.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a high pressure water conservancy spraying system is characterized in that, comprises closed type hydraulic pump (41) and radial plunger piston motor (7);
Described closed type hydraulic pump (41) comprises that the main pump (42) that is communicated with fuel tank, telescopic end and described main pump (42) are connected and drive the swash plate servo-cylinder of described main pump (42), be connected with overflow valve (1) on the oil circuit of described main pump (42), also be communicated with the control device (2) for the swash plate angle of inclination of regulating the swash plate servo-cylinder on the oil circuit of described swash plate servo-cylinder;
Described closed type hydraulic pump (41) has high pressure oil-out (A) and oil-in (B), and the oil-in of wherein said radial plunger piston motor (7) is communicated with described high pressure oil-out (A), and oil-out is communicated with described low pressure oil-in (B).
2. high pressure water conservancy spraying system according to claim 1, it is characterized in that, described closed type hydraulic pump (41) also has be used to first pressure tap (M4) of the high pressure hydraulic fluid port of measuring described swash plate servo-cylinder with for the second pressure tap (M5) of measuring the low pressure hydraulic fluid port, and overflow valve (1) is serially connected with between described high pressure oil-out (A) and the second pressure tap (M5).
3. high pressure water conservancy spraying system according to claim 1 is characterized in that, described control device (2) is specially the one way pressure-reducing valve on the oil circuit that is serially connected with described swash plate servo-cylinder.
4. high pressure water conservancy spraying system according to claim 1, it is characterized in that, described control device (2) comprises handle (22) and is arranged in parallel the first one way pressure-reducing valve (21) and the second one way pressure-reducing valve (23) on the oil circuit of described swash plate servo-cylinder, the flow direction of the first one way pressure-reducing valve (21) and the second one way pressure-reducing valve (23) is opposite, and the opening degree of selectable adjusting the first one way pressure-reducing valve of described handle (22) (21) or the second one way pressure-reducing valve (23).
5. high pressure water conservancy spraying system according to claim 1 is characterized in that, also is serially connected with control the first filter (3) on the oil circuit of described main pump (42).
6. high pressure water conservancy spraying system according to claim 1 is characterized in that, the quantity of described radial plunger piston motor (7) is two and is arranged in parallel.
7. high pressure water conservancy spraying system according to claim 6 is characterized in that, also is provided with selector valve (6) between described high pressure oil-out (A) and two radial plunger piston motors (7) that are arranged in parallel.
8. high pressure water conservancy spraying system according to claim 1 is characterized in that, also is serially connected with high pressure accumulator (5) on the oil circuit of described main pump (42).
9. high pressure water conservancy spraying system according to claim 1, it is characterized in that, described closed type hydraulic pump (41) also offers for the 3rd pressure tap (M1) of measuring high pressure oil-out (A) with for the 4th pressure tap (M2) of measuring low pressure oil-in (B), also be serially connected with flushing valve (8) between described the 3rd pressure tap (M1) and the 4th pressure tap (M2), and the oil-out of described flushing valve (8) is communicated with the enclosure interior cooling duct of described closed type hydraulic pump (41).
10. high pressure water conservancy spraying system according to claim 1 is characterized in that, also is serially connected with slippage pump (41) between described main pump (42) and the fuel tank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310164863.8A CN103316799B (en) | 2013-05-07 | 2013-05-07 | High-pressure water conservancy injection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310164863.8A CN103316799B (en) | 2013-05-07 | 2013-05-07 | High-pressure water conservancy injection system |
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| CN103316799A true CN103316799A (en) | 2013-09-25 |
| CN103316799B CN103316799B (en) | 2016-08-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105402178A (en) * | 2015-12-30 | 2016-03-16 | 中国铁建重工集团有限公司 | Closed type hydraulic system and vehicle comprising same |
| CN107237785A (en) * | 2017-07-25 | 2017-10-10 | 江苏谷登工程机械装备有限公司 | A kind of pressure cut off control system of external enclosed pump |
| CN107255090A (en) * | 2017-07-25 | 2017-10-17 | 江苏谷登工程机械装备有限公司 | A kind of control pressurer system of external enclosed pump |
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| CN103316799B (en) | 2016-08-03 |
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Effective date of registration: 20180829 Address after: 264003 7 AUCMA street, Laishan District, Yantai, Shandong. Patentee after: Jereh Energy Services Co., Ltd. Address before: 264003 7 AUCMA street, Laishan District, Yantai, Shandong. Patentee before: Radial drilling (Yantai) Co., Ltd. |