CN202165350U - Hydraulic system current collector with by-pass function - Google Patents
Hydraulic system current collector with by-pass function Download PDFInfo
- Publication number
- CN202165350U CN202165350U CN2011200284471U CN201120028447U CN202165350U CN 202165350 U CN202165350 U CN 202165350U CN 2011200284471 U CN2011200284471 U CN 2011200284471U CN 201120028447 U CN201120028447 U CN 201120028447U CN 202165350 U CN202165350 U CN 202165350U
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- hydraulic system
- valve
- hydraulic
- header pipe
- fluid port
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Abstract
A hydraulic system current collector with the by-pass function is characterized by including a collecting pipe, a flange cover plate and a three hydraulic-fluid-port safety valve, wherein joint bodies are arranged on the collecting pipe and used for switching-in return oil and leakage oil of the hydraulic system; one end of the collecting pipe is connected with an oil inlet of the three hydraulic-fluid-port safety valve; the other end of the collecting pipe is sealed and blocked through the flange cover plate; and the three hydraulic-fluid-port safety valve includes a cover plate, a damping screw plug, a spring, a valve core, a valve housing and a valve body, wherein the cover plate is fixed on the valve body through a screw, the valve housing is hermetically assembled in the valve body, the valve core is hermetically assembled in the valve housing, the spring is assembled in the valve core and provided with one end propped against the valve core and the other end propped against the cover plate, a controlled flow channel is machined on the inner side of the cover plate, the damping screw plug is screwed in the control flow channel, an oil outlet is arranged on one side of the valve body connected with collecting pipe and used for communicating a cooler, and an overflow port is arranged on the valve body corresponding to the flow channel at the middle parts of the valve core and the valve housing.
Description
Technical field
The utility model belongs to the hydraulic system field, particularly relates to a kind of hydraulic system collector with bypass function.
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.
The model utility content
The utility model 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 utility model adopts following technological scheme: the hydraulic system collector with bypass function; 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, the realization of the utility model afflux and relief function.Can realize the integrated of hydraulic oil-returning, draining and cooler bypass one-way valve after adopting the utility model, 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 the utility model structural representation; 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 the utlity model has header pipe plan view in the hydraulic system collector of bypass function;
Fig. 4 is the right elevation of Fig. 3;
Fig. 5 is the left view of Fig. 3.
Embodiment
For further understanding technology contents, characteristics and the effect of the utility model, enumerate following instance now, and conjunction with figs. specifies as follows:
With reference to accompanying drawing 2; Have the hydraulic system collector of bypass function, 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 (8)
1. have the hydraulic system collector of bypass function, 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. the hydraulic system collector with bypass function according to claim 1 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. the hydraulic system collector with bypass function according to claim 2; 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. the hydraulic system collector with bypass function according to claim 2 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. the hydraulic system collector with bypass function according to claim 3 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 the O RunddichtringO.
6. the hydraulic system collector with bypass function according to claim 1 is characterized in that, described three hydraulic fluid port safety valves cracking pressure under rated flow is 0.35MPa.
7. the hydraulic system collector with bypass function according to claim 2 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.
8. the hydraulic system collector with bypass function according to claim 2 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 |
|---|---|---|---|
| CN2011200284471U CN202165350U (en) | 2011-01-27 | 2011-01-27 | Hydraulic system current collector with by-pass function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200284471U CN202165350U (en) | 2011-01-27 | 2011-01-27 | Hydraulic system current collector with by-pass function |
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| Publication Number | Publication Date |
|---|---|
| CN202165350U true CN202165350U (en) | 2012-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200284471U Expired - Fee Related CN202165350U (en) | 2011-01-27 | 2011-01-27 | Hydraulic system current collector with by-pass function |
Country Status (1)
| Country | Link |
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| CN (1) | CN202165350U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619815A (en) * | 2011-01-27 | 2012-08-01 | 天津市友达机电液成套设备有限公司 | Hydraulic system flow collector with bypass function |
| CN103206432A (en) * | 2013-03-13 | 2013-07-17 | 南通江华热动力机械有限公司 | Oil radiator with safety valve and shock absorption pad |
| CN106352146A (en) * | 2016-10-10 | 2017-01-25 | 合肥协力液压科技有限公司 | Electromagnetic proportion valve |
| CN107461518A (en) * | 2017-08-30 | 2017-12-12 | 山东临工工程机械有限公司 | Return check valve |
| CN111776065A (en) * | 2020-06-28 | 2020-10-16 | 东风商用车有限公司 | Integrated steering radiator with bypass |
-
2011
- 2011-01-27 CN CN2011200284471U patent/CN202165350U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619815A (en) * | 2011-01-27 | 2012-08-01 | 天津市友达机电液成套设备有限公司 | Hydraulic system flow collector with bypass function |
| CN102619815B (en) * | 2011-01-27 | 2015-01-21 | 天津程普工程机械有限公司 | Hydraulic system flow collector with bypass function |
| CN103206432A (en) * | 2013-03-13 | 2013-07-17 | 南通江华热动力机械有限公司 | Oil radiator with safety valve and shock absorption pad |
| CN106352146A (en) * | 2016-10-10 | 2017-01-25 | 合肥协力液压科技有限公司 | Electromagnetic proportion valve |
| CN107461518A (en) * | 2017-08-30 | 2017-12-12 | 山东临工工程机械有限公司 | Return check valve |
| CN107461518B (en) * | 2017-08-30 | 2023-11-21 | 山东临工工程机械有限公司 | Oil return one-way valve |
| CN111776065A (en) * | 2020-06-28 | 2020-10-16 | 东风商用车有限公司 | Integrated steering radiator with bypass |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20130605 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 300393 XIQING, TIANJIN TO: 300380 XIQING, TIANJIN |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130605 Address after: Tianjin city Xiqing District Yangliuqing town 300380 green road to the east side of South Patentee after: TIANJIN CHENGPU ENGINEERING MACHINERY CO., LTD. Address before: 300393, No. 3, Xingguang Road, North Industrial Park, Middle North Town, Xiqing District, Tianjin Patentee before: Tianjin Youda Electromechanical Hydraulic Complete Equipment Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120314 Termination date: 20150127 |
|
| EXPY | Termination of patent right or utility model |