CN106224313B - A kind of pioneer pump overflow valve - Google Patents
A kind of pioneer pump overflow valve Download PDFInfo
- Publication number
- CN106224313B CN106224313B CN201610698708.8A CN201610698708A CN106224313B CN 106224313 B CN106224313 B CN 106224313B CN 201610698708 A CN201610698708 A CN 201610698708A CN 106224313 B CN106224313 B CN 106224313B
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- China
- Prior art keywords
- valve
- big
- periphery
- gap
- valve element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000010586 diagram Methods 0.000 description 6
- 239000000446 fuel Substances 0.000 description 5
- 239000002828 fuel tank Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/024—Pressure relief valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Safety Valves (AREA)
Abstract
A kind of pioneer pump overflow valve, including bushing, valve element, spring, valve pocket；A diameter of ￠ C are provided with the big cylinder left side of poppet head, depth is L annular groove；V-groove has been uniformly arranged in the big periphery of poppet head；The cooperation of valve element afterbody periphery and valve pocket endoporus, coordinated using the gap of two kinds of different numerical value.The present invention is provided with a diameter of ￠ C in the big cylinder left side of poppet head, and depth is L annular groove, improves the keying characteristic of overflow valve, reduces leakage rate during closing, improve operating efficiency；The V-groove of 8 60 degree of angles is uniformly arranged in the big periphery of poppet head, to improve overflow stability, avoids runout；Valve element afterbody column part and the cooperation in valve pocket hole, it is arranged to two kinds of different numerical value gaps and coordinates, need good seal performance at ￠ A, design gaps are small, gap is big at ￠ B, both ensure that leakage rate is small when overflow valve is closed, the problem of pioneer pump runout is caused when turn avoid overflow valve standard-sized sheet.
Description
Technical field
The present invention relates to a kind of pioneer pump overflow valve, the overflow valve is mainly used in loading machine or the guide of excavator supplies
In oil system, on the one hand ensure that pioneer pump is its timely and effective fuel feeding when pilot valve works, and on the other hand protects guide's hydraulic pressure
System.
Background technology
As shown in figure 1, be the basic block diagram of pioneer pump overflow valve, mainly have bushing 2, valve element 3, spring 4, valve pocket 5,
Pressure regulation screw mandrel 6, O-ring 7, locking nut 8 etc. are formed, and above part is installed concentratedly in the pioneer pump pump housing 1.Its hydraulic schematic diagram
As shown in figure 4, when pilot valve works, pioneer pump is its fuel feeding, and overflow valve is closed；When pilot valve does not work, overflow valve is opened and let out
Fall the pressure oil of pioneer pump.Prior art has two kinds：First, overflow valve closing efficiency is low, cause leakage rate big so that
Pilot valve fuel feeding deficiency, influences its operating efficiency；Second, when pilot valve does not work, when pressure oil is all fallen by overflow valve aerial drainage,
Runout is often produced, causes pioneer pump to shake, not only influences the normal work of pioneer pump, and greatly reduces pioneer pump
Service life.
The content of the invention
Present invention aim to provide a kind of pioneer pump overflow valve, the problem of it can overcome prior art to exist.
The object of the present invention is achieved like this, and a kind of pioneer pump overflow valve, including bushing, valve element, spring, valve pocket, its feature exist
In：A diameter of ￠ C are provided with the big cylinder left side of poppet head, depth is L annular groove；In the big periphery of poppet head
It has been uniformly arranged V-groove；The cooperation of valve element afterbody periphery and valve pocket endoporus, coordinated using the gap of two kinds of different numerical value.
The big periphery of described poppet head is evenly equipped with 8 V-grooves, and described V-groove angle is 60 degree.
Numerical value is coordinated to be 0.018-0.022 millimeters with the endoporus of valve pocket 5, gap at described valve element afterbody periphery ￠ A；
Numerical value is coordinated to be 0.05-0.06 millimeters with valve pocket endoporus, gap at described valve element afterbody periphery ￠ B.
The present invention is simple in construction, easy to process；A diameter of ￠ C are provided with the big cylinder left side of poppet head, depth is L's
Annular groove, the keying characteristic of overflow valve is improved, leakage rate during closing is reduced, improves operating efficiency；In poppet head
Big periphery is uniformly arranged the V-groove of 8 60 degree of angles, to improve overflow stability, avoids runout；Valve element afterbody cylinder
The cooperation of part and valve pocket hole, it is arranged to two kinds of different numerical value gaps and coordinates, need good seal performance at ￠ A, so design
Gap is small, and gap is big at ￠ B, both ensure that leakage rate is small when overflow valve is closed, and guide is caused when turn avoid overflow valve standard-sized sheet
The problem of pump runout.
Brief description of the drawings
Fig. 1 is pioneer pump overflow valve assembling structure schematic diagram；
Fig. 2 is valve core structure schematic diagram of the present invention；
Fig. 2-1 is Fig. 2 left views；
Fig. 3 is prior art valve core structure schematic diagram；
Fig. 3-1 is Fig. 3 left views；
Fig. 4 is pioneer pump overflow valve hydraulic schematic diagram；
1st, the pump housing, 2, bushing, 3, valve element, 4, spring, 5, valve pocket, 6, pressure regulation screw mandrel, 7, O-ring, 8 locking nuts.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings；
A kind of pioneer pump overflow valve, including bushing, valve element, spring, valve pocket, it is characterised in that：In poppet head great circle
Post left side is provided with a diameter of ￠ C, and depth is L annular groove；V-groove has been uniformly arranged in the big periphery of poppet head；Valve
The cooperation of core afterbody periphery and valve pocket endoporus, coordinated using the gap of two kinds of different numerical value.
The big periphery of described poppet head is evenly equipped with 8 V-grooves, and described V-groove angle is 60 degree.
Numerical value is coordinated to be 0.018-0.022 with the cooperation of valve pocket endoporus, gap at described valve element afterbody periphery ￠ A
Millimeter；Numerical value is coordinated to be 0.05-0.06 millimeters with the cooperation of valve pocket endoporus, gap at described valve element afterbody periphery ￠ B.
When it is implemented, bushing 2 is pressed into the pioneer pump pump housing 1 first, valve element 3 and valve pocket 5 are on request at ￠ A, at ￠ B
Combine and be fitted into the pump housing 1 with spring 4 after the gap cooperation mill of different numerical value processes, screw in pressure regulation screw mandrel 6, set up pressure
Pinned after power with locking nut 8.A mouths are the oil inlet that the oil inlet of executive component is pilot valve,
A mouths connect pilot valve oil inlet, and P mouths provide the hydraulic fluid port i.e. oil-out of pressure oil for pioneer pump, and P mouths meet guide and pumped out
Oil, T mouths connect with fuel tank.When pilot valve works, guide's pump discharge pressure declines, and valve element 3 is under spring force to moving to left
Dynamic to be bonded with bushing 2, overflow valve is closed；When pilot valve does not work, guide's pump discharge pressure rise, valve element 3 overcome spring force to
Move right, the fuel feeding overflow of pioneer pump to fuel tank.The effect of overflow valve is closed rapidly when pilot valve works, and ensures guide
Pump is pilot valve normal fuel injection and leakage rate is small, steady overflow when pilot valve does not work.
Claims (1)
1. a kind of pioneer pump overflow valve, including bushing（2）, valve element（3）, spring（4）, valve pocket（5）, it is characterised in that：In valve
Core（3）The big cylinder left side in head is provided with a diameter of Φ C, and depth is L annular groove；Valve element（3）The big periphery in head is uniform
It is provided with 8 V-grooves；Described V-groove angle is 60 degree；Valve element（3）Afterbody periphery and valve pocket（5）The cooperation of endoporus,
Coordinated using the gap of two kinds of different numerical value；Described valve element（3）At afterbody periphery Φ A and valve pocket（5）The cooperation of endoporus,
Gap coordinates numerical value to be 0.018-0.022 millimeters；Described valve element（3）At afterbody periphery Φ B and valve pocket（5）Endoporus is matched somebody with somebody
Close, gap coordinates numerical value to be 0.05-0.06 millimeters；Clearance seal at A, gap are 0.018-0.022 millimeters, clearance seal at B,
Gap is 0.05-0.06 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610698708.8A CN106224313B (en) | 2016-08-22 | 2016-08-22 | A kind of pioneer pump overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610698708.8A CN106224313B (en) | 2016-08-22 | 2016-08-22 | A kind of pioneer pump overflow valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106224313A CN106224313A (en) | 2016-12-14 |
| CN106224313B true CN106224313B (en) | 2018-02-27 |
Family
ID=57554103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610698708.8A Active CN106224313B (en) | 2016-08-22 | 2016-08-22 | A kind of pioneer pump overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106224313B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139593B (en) * | 2018-10-22 | 2020-05-26 | 安徽诺乐知识产权服务有限公司 | Pilot unloading valve |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008044800A1 (en) * | 2008-08-28 | 2010-03-04 | Robert Bosch Gmbh | Pilot-controlled pressure control valve, particularly pressure shut-off valve, pressure relief valve or pressure reducing valve, comprises master valve with master piston and pilot valve, where master piston is pre-stressed by spring |
| CN201560994U (en) * | 2009-09-29 | 2010-08-25 | 比亚迪股份有限公司 | Overflow valve |
| CN202073860U (en) * | 2011-06-01 | 2011-12-14 | 宁波克泰液压有限公司 | Threaded plug-in adjustable buffer overflow valve |
| CN202182080U (en) * | 2011-08-15 | 2012-04-04 | 宁波广天赛克思液压有限公司 | Overflow valve with secondary buffering function for hydraulic pump |
| CN102996557A (en) * | 2012-12-27 | 2013-03-27 | 宁波广天赛克思液压有限公司 | Pressure adjustable buffer overflow valve |
| CN103615424A (en) * | 2013-12-09 | 2014-03-05 | 怀特(中国)驱动产品有限公司 | Direct-operated-type hydraulic threaded insertion buffer overflow valve |
| CN203627959U (en) * | 2013-12-31 | 2014-06-04 | 德州宇力液压有限公司 | Ultrahigh pressure relief valve |
| CN204677838U (en) * | 2015-06-09 | 2015-09-30 | 武汉东江阀业制造有限公司 | Ultrahigh pressure direct-acting type transient equilibrium valve |
-
2016
- 2016-08-22 CN CN201610698708.8A patent/CN106224313B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008044800A1 (en) * | 2008-08-28 | 2010-03-04 | Robert Bosch Gmbh | Pilot-controlled pressure control valve, particularly pressure shut-off valve, pressure relief valve or pressure reducing valve, comprises master valve with master piston and pilot valve, where master piston is pre-stressed by spring |
| CN201560994U (en) * | 2009-09-29 | 2010-08-25 | 比亚迪股份有限公司 | Overflow valve |
| CN202073860U (en) * | 2011-06-01 | 2011-12-14 | 宁波克泰液压有限公司 | Threaded plug-in adjustable buffer overflow valve |
| CN202182080U (en) * | 2011-08-15 | 2012-04-04 | 宁波广天赛克思液压有限公司 | Overflow valve with secondary buffering function for hydraulic pump |
| CN102996557A (en) * | 2012-12-27 | 2013-03-27 | 宁波广天赛克思液压有限公司 | Pressure adjustable buffer overflow valve |
| CN103615424A (en) * | 2013-12-09 | 2014-03-05 | 怀特(中国)驱动产品有限公司 | Direct-operated-type hydraulic threaded insertion buffer overflow valve |
| CN203627959U (en) * | 2013-12-31 | 2014-06-04 | 德州宇力液压有限公司 | Ultrahigh pressure relief valve |
| CN204677838U (en) * | 2015-06-09 | 2015-09-30 | 武汉东江阀业制造有限公司 | Ultrahigh pressure direct-acting type transient equilibrium valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106224313A (en) | 2016-12-14 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A relief valve for pilot pumps Granted publication date: 20180227 Pledgee: Jingjiang sub branch of Postal Savings Bank of China Ltd. Pledgor: JIANGSU ERMA FLUID POWER ELEMENT CO.,LTD. Registration number: Y2024980000218 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |