CN102619815A - Hydraulic system flow collector with bypass function - Google Patents
Hydraulic system flow collector with bypass function Download PDFInfo
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- CN102619815A CN102619815A CN2011100303072A CN201110030307A CN102619815A CN 102619815 A CN102619815 A CN 102619815A CN 2011100303072 A CN2011100303072 A CN 2011100303072A CN 201110030307 A CN201110030307 A CN 201110030307A CN 102619815 A CN102619815 A CN 102619815A
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- hydraulic system
- valve
- bypass function
- oil
- header pipe
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Abstract
A hydraulic system flow collector with a bypass function is characterized by being formed by a flow collecting pipe, a flange cover plate and a three-oil-port safety valve. The flow collecting pipe is provided with a connector body and used for receiving returning oil and leaking oil of a hydraulic system. One end of the flow collecting pipe is connected with an oil feeding port of a three-oil-port safety valve, and the other end of the flow collecting pipe is plugged through the flange cover plate. The three-oil-port safety valve comprises a cover plate, a damp plug screw, a spring, a valve core, a valve sleeve and a sleeve body. The cover plate is fixed on a valve body through a screw, the valve sleeve is matched inside the valve body in sealing mode, the valve core is matched inside the valve sleeve in sealing mode, the spring is assembled inside the valve core, and one end of the spring butts against the valve core. The other end of the spring butts against the cover plate. A control flow channel is processed on the inner side of the cover plate, and the damping plug screw is screwed into the control flow channel. One side of the valve body connected with the flow collecting pipe is provided with an oil outlet, and the oil outlet is used for connecting a cooling device. An overflow port is arranged at a flow channel portion on the valve body corresponding to the middle of the valve core and the valve sleeve.
Description
Technical field
The invention belongs to the hydraulic system field, particularly relate to a kind of bypass function hydraulic system collector that has.
Background technique
Hydraulic system is preferably in work in 40～60 ℃ of scopes (engineering machinery allows working below 80 ℃), when being higher than said temperature, then adopts cooler to reduce the oil temperature.For construction machinery hydraulic system, oil return cooling circuit commonly used such as accompanying drawing 1.Fluid is through hydraulic system oil return, drain line A
1A
XGet into the afflux piece in 1 (the afflux piece refers to valve piece and the pipeline that fluid compiles), the back, interflow gets into cooler 2, and then gets back in the fuel tank 5 through oil purifier 4, thereby realizes the function to hydraulic system oil return cooling and lube purification.In addition cooler 2 into and out of bypass one-way valve 3 of parallel connection between hydraulic fluid port, when cooler into and out of hydraulic fluid port pressure reduction during greater than 0.35MPa, bypass one-way valve 3 is opened, fuel tank is flowed back in oil return, thereby plays the effect of protection cooler.Above-mentioned engineering machinery oil return cooling circuit design is adopted and is divided body structure, and promptly afflux piece 1, cooler 2, bypass one-way valve 3 and oil purifier 4 are independent component, connect through hydraulic tube piece.In system when assembling,, owing to receive spatial limitation, the inlet/outlet three-way union of cooler 2 is connected into and out of the hydraulic fluid port pipe joint through steel pipe and bypass one-way valve 3, in the practical application installation more loaded down with trivial details, and the pipe joint place is prone to the seepage phenomenon.
Summary of the invention
The present invention is intended to overcome the deficiency of existing technology, and a kind of hydraulic system collector with bypass function is provided, and installs to simplify engineering machinery oil return cooling system, effectively solves the pipe joint leakage problems.
The present invention adopts following technological scheme: have bypass function hydraulic system collector; Be characterized in: constitute by header pipe, flange plate and three hydraulic fluid port safety valves; Wherein, described header pipe is provided with fittings body, is used to insert the oil return and the draining of hydraulic system; The filler opening of one end of header pipe and three hydraulic fluid port safety valves is connected, and the other end of header pipe is through the flange plate shutoff; Described three hydraulic fluid port safety valves comprise cover plate, damping plug screw, spring, spool, valve pocket, valve body, and wherein, on valve body, valve pocket is close to be assigned in the valve body cover plate through screw, and spool is close to be assigned in the valve pocket, and spring is assemblied in the spool, and an end withstands spool; The other end withstands cover plate; The cover plate inboard is processed with the control runner, is screwed into the damping plug screw in the control runner; A side that is connected with header pipe on the valve body is provided with oil outlet, and oil outlet is used to connect cooler; Flow-off is arranged on the valve body corresponding to the runner position of spool 12 with valve pocket 13 middle parts.
During use, flow is pooled to header pipe through fittings body, gets into the filler opening of three hydraulic fluid port safety valves through header pipe, and under the pressure of flow, flow gets into cooler through oil outlet; Excessive when the pressure of flow, under the liquid situation how that promptly fittings body imports, promote the spool extrusion spring and expose liquid chunnel, open flow-off.When pressure reduction was less than 0.35MPa between oil outlet and flow-off, spool was in closed condition under the effect of spring, and flow flows out through the oil outlet of valve body.When pressure reduction was more than or equal to 0.35MPa between oil outlet and flow-off, spool overcame spring force under the pressure oil effect of bottom, be in open mode, and flow flows out through the flow-off of valve body.
Compared with prior art, afflux and the relief function realized of the present invention.Can realize the integrated of hydraulic oil-returning, draining and cooler bypass one-way valve after adopting the present invention, both simplify the hydraulic system pipeline connection, greatly reduce hydraulic system leakage again, make the reliable more and safety of machine works.
Description of drawings
Fig. 1 is an existing technology oil return cooling circuit principle schematic; 1. afflux piece, 2. cooler, 3. bypass one-way valve, 4. oil purifier, 5. fuel tank.
Fig. 2 is a structural representation of the present invention; Wherein, 6. screw A, 7. cover plate, 8. control runner, 9. damping plug screw, 10. spring; 11. flow-off, 12. spools, 13. valve pockets, 14. valve bodies, 15. oil outlets; 16. bisection method is blue, 17. screw B, 18. header pipes, 19. flange plates, 20. bolts; 21. flange sleeve, 22. transition plates, 23. fittings bodies, 24. square tubulars, 25. base plates.
Fig. 3 is that the present invention has header pipe plan view in the bypass function hydraulic system collector;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is the right elevation of Fig. 3.
Embodiment
For further understanding technology contents of the present invention, characteristics and effect, enumerate following instance now, and conjunction with figs. specifies as follows:
With reference to accompanying drawing 2; Have bypass function hydraulic system collector, be characterized in: constitute by header pipe 18, flange plate 19 and three hydraulic fluid port safety valves, wherein; Described header pipe is provided with fittings body 23; Be used to insert the oil return and the draining of hydraulic system, the filler opening of an end of header pipe and three hydraulic fluid port safety valves is connected, and the other end of header pipe is through the flange plate shutoff; Described three hydraulic fluid port safety valves comprise cover plate 7, damping plug screw 9, spring 10, spool 12, valve pocket 13, valve body 14, and wherein, cover plate passes through screw on valve body; Valve pocket is close to be assigned in the valve body; Spool is close to be assigned in the valve pocket, and spring is assemblied in the spool, and an end withstands spool; The other end withstands cover plate; The cover plate inboard is processed with the control runner, is screwed into the damping plug screw in the control runner; A side that is connected with header pipe on the valve body is provided with oil outlet 15, and oil outlet is used to connect cooler; Flow-off 11 is arranged on the valve body corresponding to the runner position of spool 12 with valve pocket 13 middle parts.
With reference to Fig. 3～Fig. 5: described header pipe is welded by flange sleeve 21, transition plate 22, square tubular 24, base plate 25 successively, and fittings body 23 is welded on the side of square tubular 24.
One end flange sleeve pipe 21 of described header pipe 18 and three hydraulic fluid port safety valves are connected through bisection method orchid 16, screw 17, and the other end base plate 25 of header pipe 18 is through flange plate 19, bolt 20 sealings.
The lower end surface of the upper-end surface of described flange sleeve 21 and base plate 25 is processed with o-ring groove.
The junction surface of described flange sleeve 21 and three hydraulic fluid port safety valves and base plate 25 are equipped with 0 RunddichtringO with the junction surface of flange plate.
Described fittings body 23 has 3 (setting according to actual needs) at least, is welded on respectively on three sides of square tubular 24.
Described three hydraulic fluid port safety valves cracking pressure under rated flow is 0.35MPa.
Described base plate 25 is provided with square inner bore, and the square inner bore size is identical with the square tubular endoporus, and purpose is convenient to the cleaning to header pipe 18.
Described transition plate 22 is provided with circular inner hole, and the circular inner hole size is identical with flange sleeve 21 endoporus.
The concrete structure of present embodiment and action description thereof:
Hydraulic system oil return, leakage line are connected with the fittings body 23 of header pipe 18 respectively, and the oil outlet 15 of valve body 14 is connected with the cooler filler opening, and the flow-off 11 of valve body 14 is connected with the cooler outlet tee union.Three hydraulic fluid port safety valves cracking pressure under rated flow is 0.35MPa.
After the hydraulic system oil return gets into header pipe 18 from fittings body 23 affluxs; Oil outlet 15 through valve body 14 flows into cooler; Simultaneously pressure oil acts on the bottom area of spool 12, and cooler outlet pressure oil acts on the spool 12 top areas through the flow-off 11 of valve body 14, when oil outlet 15 and 11 pressure reduction of flow-off during less than 0.35MPa; Spool 12 is in closed condition under the effect of spring 10, the hydraulic system oil return is flowed back to fuel tank through oil outlet 15, cooler, oil purifier.In case 11 pressure reduction of oil outlet 15 and flow-off are during more than or equal to 0.35MPa, spool 12 overcomes spring 10 active forces under the pressure oil effect of bottom, be in opening state, and the hydraulic system oil return is flowed back to fuel tank through flow-off 11, oil purifier.Thereby avoid cooler to meet with bigger pressure reduction and the danger of explosion occurs.
Claims (9)
1. have bypass function hydraulic system collector, it is characterized in that, be made up of header pipe, flange plate and three hydraulic fluid port safety valves, wherein, an end of header pipe and three hydraulic fluid port safety valves are connected, and the other end of header pipe is through the flange plate shutoff; Described three hydraulic fluid port safety valves comprise cover plate, damping plug screw, spring, spool, valve pocket, valve body, wherein, are equipped with spring, spool, valve pocket in the valve body; The cover plate inboard is processed with the control runner, is screwed into the damping plug screw in the control runner.
2. according to claim 1 have a bypass function hydraulic system collector, it is characterized in that described header pipe is welded by flange sleeve, transition plate, square tubular, base plate successively, and fittings body is welded on a side of square tubular.
3. according to claim 2 have a bypass function hydraulic system collector; It is characterized in that; One end flange sleeve pipe of described header pipe and three hydraulic fluid port safety valves are blue through bisection method, screw is connected, and the other end base plate of header pipe is through flange plate, bolt sealing.
4. according to claim 2 have a bypass function hydraulic system collector, it is characterized in that the upper-end surface of described flange sleeve and the lower end surface of base plate are processed with o-ring groove.
5. according to claim 3 have a bypass function hydraulic system collector, it is characterized in that the junction surface of described flange sleeve and three hydraulic fluid port safety valves and the junction surface of base plate and flange plate are equipped with 0 RunddichtringO.
6. according to claim 1 have a bypass function hydraulic system collector, it is characterized in that, in the described fittings body, total several (setting according to actual needs) are welded on respectively on three sides of square tubular.
7. according to claim 1 have a bypass function hydraulic system collector, it is characterized in that described three hydraulic fluid port safety valves cracking pressure under rated flow is 0.35MPa.
8. according to claim 2 have a bypass function hydraulic system collector, it is characterized in that described base plate is provided with square inner bore, and the square inner bore size is identical with the square tubular endoporus.
9. according to claim 2 have a bypass function hydraulic system collector, it is characterized in that described transition plate is provided with circular inner hole, and the circular inner hole size is identical with the flange sleeve endoporus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110030307.2A CN102619815B (en) | 2011-01-27 | 2011-01-27 | Hydraulic system flow collector with bypass function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110030307.2A CN102619815B (en) | 2011-01-27 | 2011-01-27 | Hydraulic system flow collector with bypass function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102619815A true CN102619815A (en) | 2012-08-01 |
| CN102619815B CN102619815B (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110030307.2A Expired - Fee Related CN102619815B (en) | 2011-01-27 | 2011-01-27 | Hydraulic system flow collector with bypass function |
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| CN (1) | CN102619815B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422930A (en) * | 2015-12-22 | 2016-03-23 | 江苏久晟环保设备有限公司 | Novel check valve |
| CN108612703A (en) * | 2018-04-24 | 2018-10-02 | 上海屹丰汽车模具制造有限公司 | Four exchange device of gas circuit |
| CN112984005A (en) * | 2021-03-31 | 2021-06-18 | 安徽江淮汽车集团股份有限公司 | Wet clutch hydraulic control system and automatic gearbox |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3613717A (en) * | 1970-05-20 | 1971-10-19 | Sperry Rand Corp | Remote electrically modulated relief valve |
| GB1432031A (en) * | 1972-03-11 | 1976-04-14 | Eglinski J | Filter assemblies |
| CN85202888U (en) * | 1985-07-11 | 1987-03-25 | 浙江大学 | 3-way plug-in electric controlled liquid ratio direction valve |
| JP2002039117A (en) * | 2000-07-19 | 2002-02-06 | Hitachi Constr Mach Co Ltd | Hydraulic circuit device |
| CN202165350U (en) * | 2011-01-27 | 2012-03-14 | 天津市友达机电液成套设备有限公司 | Hydraulic system current collector with by-pass function |
-
2011
- 2011-01-27 CN CN201110030307.2A patent/CN102619815B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3613717A (en) * | 1970-05-20 | 1971-10-19 | Sperry Rand Corp | Remote electrically modulated relief valve |
| GB1432031A (en) * | 1972-03-11 | 1976-04-14 | Eglinski J | Filter assemblies |
| CN85202888U (en) * | 1985-07-11 | 1987-03-25 | 浙江大学 | 3-way plug-in electric controlled liquid ratio direction valve |
| JP2002039117A (en) * | 2000-07-19 | 2002-02-06 | Hitachi Constr Mach Co Ltd | Hydraulic circuit device |
| CN202165350U (en) * | 2011-01-27 | 2012-03-14 | 天津市友达机电液成套设备有限公司 | Hydraulic system current collector with by-pass function |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422930A (en) * | 2015-12-22 | 2016-03-23 | 江苏久晟环保设备有限公司 | Novel check valve |
| CN105422930B (en) * | 2015-12-22 | 2018-09-14 | 江苏久晟环保设备有限公司 | A kind of check valve |
| CN108612703A (en) * | 2018-04-24 | 2018-10-02 | 上海屹丰汽车模具制造有限公司 | Four exchange device of gas circuit |
| CN112984005A (en) * | 2021-03-31 | 2021-06-18 | 安徽江淮汽车集团股份有限公司 | Wet clutch hydraulic control system and automatic gearbox |
| CN112984005B (en) * | 2021-03-31 | 2022-03-29 | 安徽江淮汽车集团股份有限公司 | Wet clutch hydraulic control system and automatic gearbox |
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| Publication number | Publication date |
|---|---|
| CN102619815B (en) | 2015-01-21 |
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| ASS | Succession or assignment of patent right |
Owner name: TIANJIN CHENGPU ENGINEERING MACHINERY CO., LTD. Free format text: FORMER OWNER: TIANJIN YOUDA ELECTROMECHANICAL HYDRAULIC COMPLETE EQUIPMENT CO., LTD. Effective date: 20130604 |
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Free format text: CORRECT: ADDRESS; FROM: 300393 XIQING, TIANJIN TO: 300380 XIQING, TIANJIN |
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Effective date of registration: 20130604 Address after: Tianjin city Xiqing District Yangliuqing town 300380 green road to the east side of South Applicant after: TIANJIN CHENGPU ENGINEERING MACHINERY CO., LTD. Address before: 300393, No. 3, Xingguang Road, North Industrial Park, Middle North Town, Xiqing District, Tianjin Applicant before: Tianjin Youda Electromechanical Hydraulic Complete Equipment Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20200127 |