CN201547364U - Liquid-control flow valve for ultra-high-pressure double-pole pump - Google Patents
Liquid-control flow valve for ultra-high-pressure double-pole pump Download PDFInfo
- Publication number
- CN201547364U CN201547364U CN2009202002519U CN200920200251U CN201547364U CN 201547364 U CN201547364 U CN 201547364U CN 2009202002519 U CN2009202002519 U CN 2009202002519U CN 200920200251 U CN200920200251 U CN 200920200251U CN 201547364 U CN201547364 U CN 201547364U
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- Prior art keywords
- valve seat
- steel ball
- loculus
- pump
- screw plug
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- Expired - Fee Related
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Abstract
The utility model discloses a liquid-control flow valve for an ultra-high-pressure double-pole pump, comprising a valve seat (1), an adjusting screw plug (2), a spring (4) and a valve core (5), wherein the valve seat (1) is provided with a big cavity (1.1) and a small cavity (1.2); the big cavity (1.1) is connected with the small cavity (1.2); the adjusting screw plug (2) is arranged in an end part of the valve seat (1) and is used for sealing the cavity opening of the big cavity (1.1); the spring (4) and the valve core (5) are arranged in a cavity body of the valve seat (1); one end of the spring (4) is tightly attached to the inner end surface of the adjusting screw plug (2); the other end of the spring (4) is tightly attached to the valve core (5); and one end of the valve seat (1), far away from the adjusting screw plug (2), is connected on a pump body in a thread manner. The liquid-control flow valve for the ultra-high-pressure double-pole pump has small volume, light weight and convenient installation; and can reduce the volume and the weight of the pump body.
Description
Technical field
The utility model relates to a kind of hydrovalve, relates to the bipolar pump of a kind of ultrahigh pressure hydraulic control Flow valve or rather.
Background technique
Superpressure oil pump can be used for providing power to Hydraulic power tools, and it all is to carry out work with high-pressure low-flow under Hydraulic power tools load and unloaded state, therefore working efficiency is identical basically, this just makes Hydraulic power tools when zero load, oil pump efficient oil-filled to it or oil return just seems lower, thereby makes that the working efficiency of total system is lower.(just instrument is under unloaded state for the working efficiency of raising instrument system when the zero load, the speed of oil pump or oil return oil-filled) to it, just superpressure oil pump need be changed into the bipolar pump of ultrahigh pressure, Hydraulic power tools is finished the work by high-pressure service pump when load condition, Hydraulic power tools is finished the process of oil-filled or oil return rapidly by high-pressure service pump and low pressure pump when unloaded state, thereby improve the working efficiency of system, but this process must be by finishing just by the hydraulic control Flow valve.The hydraulic control Flow valve of prior art is board-like hydraulic control Flow valve, need flange be set thereon and the pump housing is installed, trouble is installed, flange is set also can make the volume of Flow valve bigger, make its weight heavier, and for convenience the flange on the hydraulic control Flow valve is installed on the pump housing, generally the pump housing is done squarely, but square pump housing relative volume is bigger, thereby makes that also the weight of the pump housing is relatively heavy.
The model utility content
The technical problems to be solved in the utility model is to provide a kind of volume little, in light weight, easy for installation, and can reduce pump housing volume and the bipolar pump of the ultrahigh pressure hydraulic control Flow valve that alleviates pump housing weight.
Technical solution of the present utility model is, a kind of bipolar pump of ultrahigh pressure hydraulic control Flow valve with following structure is provided, and it comprises valve seat, adjusts screw plug, spring and spool; Described valve seat is provided with big chamber and loculus, and described big chamber is connected with loculus; Described adjustment screw plug is installed in the end of described valve seat to seal described big chamber accent; Described spring and spool are installed in the cavity of valve seat, and an end of described spring is close on the interior edge face of adjusting screw plug, and the other end of described spring is close on the spool; Described valve seat is screwed onto on the described pump housing away from an end of described adjustment screw plug.
After adopting above structure, the bipolar pump of the utility model ultrahigh pressure with the hydraulic control Flow valve compared with prior art has the following advantages:
Because the bipolar pump of the utility model ultrahigh pressure is screwed onto on the described pump housing with the end of the described valve seat of hydraulic control Flow valve away from described adjustment screw plug, this kind structure need not be provided with flange on valve seat, can reduce the volume of valve seat, alleviate the weight of valve seat, and easy for installation; Be screwed onto on the described pump housing owing to valve seat again, only needing that a tapped hole is set on the described pump housing just can, the described pump housing can be made circle like this, can its internal structure design is compact more, thereby can reduce the volume and the weight that alleviates the pump housing of the pump housing, pump housing volume reduces to make pumping plant to seem lighter and handier on the whole, thereby is convenient for carrying.
As a kind of improvement of the present utility model, described spool comprises steel ball, steel ball seat and push rod; Described steel ball is installed in the groove of described steel ball seat; The sphere of described steel ball is against on the junction surface of the big chamber of described valve seat and loculus, and described steel ball is sealed described loculus connecting end port; Described push rod is installed in the described loculus, and an end of described push rod is provided with concave spherical surface, and described concave spherical surface is against on the sphere of described steel ball.Because what spool adopted is spherical valve core, makes valve core structure simple, easy to process, structural strength is higher, and seals loculus connecting end accent with steel ball, makes good sealing effect.
Description of drawings
Fig. 1 is the sectional structure schematic representation of the bipolar pump of the utility model ultrahigh pressure with the hydraulic control Flow valve.
To be the bipolar pump of the utility model ultrahigh pressure be installed in structural representation on the pump housing with the hydraulic control Flow valve to Fig. 2.
Shown in the figure:
Prior art: 1, valve seat, 1.1, big chamber, 1.1.1, through hole I, 1.2, loculus, 1.2.1, through hole II, 1.2.2, limited step, 2, adjust screw plug, 3, fastening screw trip bolt, 4, spring, 5, spool, 5.1, steel ball, 5.2, steel ball seat, 5.2.1, groove, 5.3, push rod, 5.3.1, smaller portions, 5.3.1.1, concave spherical surface, 5.3.2, major part, 5.3.2.1, radial groove, 6, back-up ring, 7, seal ring, 8, the pump housing.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
See also Figure 1 and Figure 2, the bipolar pump of the utility model ultrahigh pressure comprises valve seat 1, adjusts screw plug 2, fastening screw trip bolt 3, spring 4 and spool 5 with the hydraulic control Flow valve.The profile of described valve seat 1 is circular, the right-hand member outer surface of described valve seat 1 is provided with screw thread, described valve seat 1 is provided with axially big chamber 1.1 and loculus 1.2, described big chamber 1.1 is connected with described loculus 1.2, the free end in described big chamber 1.1 is connected with the external world, the free end of described loculus 1.2 is connected with the external world, and the chamber wall in described big chamber 1.1 is provided with through hole I1.1.1, and the chamber wall of described loculus 1.2 is provided with through hole II1.2.1.Described adjustment screw plug 2 is threaded in the end of described valve seat 1, and seals described big chamber 1.1 accents.Described fastening screw trip bolt 3 is installed in described valve seat 1 and is provided with on the end of adjusting screw plug 2, is used for locking and adjusts screw plug 2.Described spool 5 comprises steel ball 5.1, steel ball seat 5.2 and push rod 5.3, and described push rod 5.3 is a stepped shaft, and the free end of described push rod 5.3 smaller portions 5.3.1 is provided with and the corresponding concave spherical surface 5.3.1.1 of described steel ball 5.1 external frames; The right side of described steel ball seat 5.2 is provided with and the corresponding spherical groove 5.2.1 of the external frame of described steel ball 5.1.Be provided with limited step 1.2.2 in the loculus 1.2 of described valve seat 1, described limited step 1.2.2 is positioned at the right of described through hole II1.2.1.
Described spring 4 is installed between described adjustment screw plug 2 and the described steel ball seat 5.2, and an end of described spring 4 is close on the right side of described adjustment screw plug 2, and the other end of described spring 4 is close on the left side of steel ball seat 5.2.Described steel ball 5.1 is installed in the groove 5.2.1 of described steel ball seat 5.2, described steel ball seat 5.2 is being against described steel ball 5.1 on the junction surface of described big chamber 1.1 and loculus 1.2 under the effect of spring 4 elastic force, and described steel ball 5.1 is sealed described loculus 1.2 left end ports.Described push rod 5.3 is installed in the described loculus 1.2, the concave spherical surface 5.3.1.1 of described push rod 5.3 smaller portions 5.3.1 is against on the sphere of described steel ball 5.1, and leave the space between the chamber wall of described push rod 5.3 smaller portions 5.3.1 and described loculus 1.2, described push rod 5.3 major part 5.3.2 are limited in the right of described limited step 1.2.2, and the major part 5.3.2 sliding fit of described push rod 5.3 is in described loculus 1.2, the right output port of described loculus 1.2 is equipped with back-up ring 6, described back-up ring 6 is spacing on its left side with described push rod 5.3, axial minimum range between described limited step 1.2.2 and the described back-up ring 6 is greater than the axial length of described push rod 5.3 major part 5.3.2, and described steel ball 5.1 is just sealed described loculus 1.2 left end accents when the right-hand member of described push rod 5.3 is against on the back-up ring 6.The major part of described push rod 5.3 is provided with radial groove 5.3.2.1, in the described radial groove 5.3.2.1 seal ring 7 is installed, and described seal ring 7 is used to seal the gap between push rod 5.3 major part 5.3.2 and the loculus 1.2 chamber walls.
During use, the right-hand member of described valve seat 1 screwed on the pump housing 8, be used to install in the tapped hole of hydraulic control Flow valve, make loculus 1.2 accents of described valve seat 1 be connected with the high-pressure oil passage of bipolar pump, through hole II1.2.1 on the loculus 1.2 chamber walls is connected with the low pressure oil circuit, and the through hole I1.1.1 on the 1.1 chamber walls of big chamber is connected with fuel tank.When bipolar pump pump pressure during greater than the setting value of hydraulic control Flow valve, the push rod 5.3 that high-pressure oil passage will promote the hydraulic control Flow valve slides to the left side, push rod 5.3 slides to the left side will push away steel ball 5.1 junction surface of described big chamber 1.1 and loculus 1.2, big chamber 1.1 is connected with loculus 1.2, thereby make the low pressure oil circuit be connected and draining with fuel tank, the low pressure oil circuit just is closed, when this process acts on the Hydraulic power tools load; When bipolar pump pump pressure during less than the setting value of hydraulic control Flow valve, push rod 5.3 will slide to the right, up to propping up back-up ring 6, steel ball 5.1 just can prop up the junction surface of big chamber 1.1 and loculus 1.2 again at this moment, sealing loculus 1.2 left end accents, and the cutoff low oil circuit is communicated with fuel tank, thereby make low pressure oil circuit unlatching work again, when this process acts on the Hydraulic power tools zero load, can carry out oil-filled or oil return to Hydraulic power tools fast, thereby increase work efficiency.Before the use, bearing force value and can adjusting by adjusting screw plug 2 of hydraulic control Flow valve can be rotated the position of adjusting screw plug 2, thereby can be adjusted the elastic force of spring 4, can adjust the pressure that bears of hydraulic control Flow valve, after being transferred to required value, can adjust screw plug 2 by fastening screw trip bolt 3 lockings.
Claims (2)
1. the bipolar pump of ultrahigh pressure hydraulic control Flow valve, it comprises valve seat (1), adjusts screw plug (2), spring (4) and spool (5); Described valve seat (1) is provided with big chamber (1.1) and loculus (1.2), and described big chamber (1.1) is connected with loculus (1.2); Described adjustment screw plug (2) is installed in the end of described valve seat (1) to seal described big chamber (1.1) accent; Described spring (4) and spool (5) are installed in the cavity of valve seat (1), and an end of described spring (4) is close on the interior edge face of adjusting screw plug (2), and the other end of described spring (4) is close on the spool (5); It is characterized in that: described valve seat (1) is screwed onto on the described pump housing (8) away from an end of described adjustment screw plug (2).
2. the bipolar pump of ultrahigh pressure according to claim 1 hydraulic control Flow valve is characterized in that: described spool (5) comprises steel ball (5.1), steel ball seat (5.2) and push rod (5.3); Described steel ball (5.1) is installed in the groove (5.2.1) of described steel ball seat (5.2); On the big chamber (1.1) that the sphere of described steel ball (5.1) is against described valve seat (1) and the junction surface of loculus (1.2), and described steel ball (5.1) is sealed described loculus (1.2) connecting end port; Described push rod (5.3) is installed in the described loculus (1.2), and an end of described push rod (5.3) is provided with concave spherical surface (5.3.1.1), and described concave spherical surface (5.3.1.1) is against on the sphere of described steel ball (5.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202002519U CN201547364U (en) | 2009-11-06 | 2009-11-06 | Liquid-control flow valve for ultra-high-pressure double-pole pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202002519U CN201547364U (en) | 2009-11-06 | 2009-11-06 | Liquid-control flow valve for ultra-high-pressure double-pole pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201547364U true CN201547364U (en) | 2010-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202002519U Expired - Fee Related CN201547364U (en) | 2009-11-06 | 2009-11-06 | Liquid-control flow valve for ultra-high-pressure double-pole pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201547364U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104564A (en) * | 2012-12-13 | 2013-05-15 | 陈磊 | Inserting installation type balance valve |
| CN103470477A (en) * | 2013-09-11 | 2013-12-25 | 太仓康茂电子有限公司 | Gas ballast valve |
| CN103542149A (en) * | 2013-10-21 | 2014-01-29 | 哈尔滨东安发动机（集团）有限公司 | Pressure regulating valve |
| CN106015542A (en) * | 2016-08-17 | 2016-10-12 | 湖南机油泵股份有限公司 | Transmission oil pump capable of preventing pressure of transmission oil duct from being too high |
| CN107448429A (en) * | 2016-06-01 | 2017-12-08 | 纳博特斯克有限公司 | Flow rate regulating valve and valve tectosome |
-
2009
- 2009-11-06 CN CN2009202002519U patent/CN201547364U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104564A (en) * | 2012-12-13 | 2013-05-15 | 陈磊 | Inserting installation type balance valve |
| CN103104564B (en) * | 2012-12-13 | 2015-07-01 | 宁波江东思犒技术服务有限公司 | Inserting installation type balance valve |
| CN103470477A (en) * | 2013-09-11 | 2013-12-25 | 太仓康茂电子有限公司 | Gas ballast valve |
| CN103542149A (en) * | 2013-10-21 | 2014-01-29 | 哈尔滨东安发动机（集团）有限公司 | Pressure regulating valve |
| CN107448429A (en) * | 2016-06-01 | 2017-12-08 | 纳博特斯克有限公司 | Flow rate regulating valve and valve tectosome |
| CN107448429B (en) * | 2016-06-01 | 2020-05-01 | 纳博特斯克有限公司 | Flow rate adjustment valve and valve structure |
| CN106015542A (en) * | 2016-08-17 | 2016-10-12 | 湖南机油泵股份有限公司 | Transmission oil pump capable of preventing pressure of transmission oil duct from being too high |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo Saivs Machinery Co., Ltd. Assignor: Zhou Zhongwei Contract record no.: 2011330000978 Denomination of utility model: Liquid-control flow valve for ultra-high-pressure double-pole pump Granted publication date: 20100811 License type: Exclusive License Record date: 20110719 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20141106 |
|
| EXPY | Termination of patent right or utility model |