CN203731067U - Bridge rectifying valve block for bilateral backing pump - Google Patents
Bridge rectifying valve block for bilateral backing pump Download PDFInfo
- Publication number
- CN203731067U CN203731067U CN201420040657.6U CN201420040657U CN203731067U CN 203731067 U CN203731067 U CN 203731067U CN 201420040657 U CN201420040657 U CN 201420040657U CN 203731067 U CN203731067 U CN 203731067U
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- Prior art keywords
- valve
- way
- pump
- oil
- valve body
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- Expired - Lifetime
Links
- 230000002146 bilateral effect Effects 0.000 title abstract 7
- 230000002457 bidirectional effect Effects 0.000 claims description 16
- 239000012530 fluid Substances 0.000 claims description 16
- 238000009530 blood pressure measurement Methods 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 67
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Fluid-Pressure Circuits (AREA)
Abstract
The utility model provides a bridge rectifying valve block for a bilateral backing pump. The bridge rectifying valve block for the bilateral backing pump is provided with a valve body. The upper end face of the valve body is provided with a hydraulic control reversing valve and an overflow valve. The lower end face of the valve body is provided with a one-way valve I, a one-way valve II and a control port Pi1. A one-way valve III is arranged on the left end face of the valve body. A one-way valve IV is arranged on the right end face of the valve body. A pump oil inlet/outlet P1, a pump oil inlet/ outlet P2, a valve body oil inlet/ return opening T and a valve body oil outlet A are formed in the front end face of the valve body. A pressure measuring oil opening M is formed in the rear end face of the valve body. The one-way I, the one-way II, the one-way III and the one-way IV constitute a bridge type rectifying loop and are communicated with the hydraulic control reversing valve and the overflowing valve. A bilateral hydraulic pump is connected between the pump oil inlet/outlet P1 and the pump oil inlet/outlet P2. According to the bridge rectifying valve block for the bilateral backing pump, it is guaranteed that an oil suction path and an oil outlet path of the bilateral backing pump are constant through oil path conversion on the valve body, the bilateral backing pump can be high in pressure and rotation speed through selection, and high practical value is achieved.
Description
Technical field
The utility model belongs to technical field of engineering machinery, is specifically related to a kind of bridge rectifier valve piece for bidirectional rotation oil pump.
Background technique
Bidirectional hydraulic pump can be installed on the delivery outlet of bidirectional rotation, but when oil pump is by being rotated in the forward while changing counterrotating into, its oil suction road and vent line are to need to change, requiring the application that oil suction road and vent line are constant so, just need particular design, the common two-way gerotor lube pumps of one on market, no matter positive and negative direction is rotated, its inlet and outlet of fuel channel all need not change, but this oil pump, because the restriction of working principle cannot meet the requirement of high pressure and wide speed range conventionally, is therefore necessary to propose to improve.
Model utility content
The technical problem that the utility model solves: a kind of bridge rectifier valve piece for bidirectional rotation oil pump is provided, by the oil circuit conversion on valve body ensure bidirectional rotation oil pump oil suction road and vent line constant, simultaneously bidirectional rotation oil pump can be selected the oil pump of the wide rotating speed of high pressure.
The technical solution adopted in the utility model: for the bridge rectifier valve piece of bidirectional rotation oil pump, there is valve body, described valve body upper-end surface is provided with pilot operated directional control valve and relief valve, its lower end surface is provided with one-way valve I, one-way valve II and control port Pil, its left side is provided with one-way valve III, its right side is provided with one-way valve IV, its front-end face be provided with pump enter oil outlet P1 and pump enter oil outlet P2, valve body enter oil return inlet T and valve body oil outlet A, thereafter end face is provided with pressure measurement hydraulic fluid port M, wherein, one-way valve I, one-way valve II, one-way valve III and one-way valve IV form bridge rectifier loop and are communicated with pilot operated directional control valve and relief valve, bidirectional hydraulic pump be connected to pump enter between return opening P1 and P2.
Wherein, when described two-way oil pump is left-handed, valve body enter oil return inlet T fluid by one-way valve IV through pump enter oil outlet P2 flow to the inlet port of two-way oil pump, the oil outlet of described two-way oil pump through pump enter oil outlet P1 flow to the import of one-way valve I and open one-way valve I and enter valve inner oil duct and be communicated with pilot operated directional control valve and relief valve; When described two-way oil pump dextrorotation, the fluid of valve body Jin oil return inlet T flows to the inlet port of two-way oil pump through pump Jin oil outlet P1 by one-way valve III, the oil outlet of described two-way oil pump flows to the import of one-way valve II through pump Jin oil outlet P2 and opens one-way valve II and enter the inner oil duct of valve piece and be communicated with pilot operated directional control valve and relief valve.
Further, described one-way valve I, one-way valve II, one-way valve III, one-way valve IV, relief valve and pilot operated directional control valve all screw and are integrated with screw thread and valve body.
The utility model advantage compared with prior art:
1, the bridge-type of four one-way valves combination can be switched the inlet and outlet of fuel channel of bidirectional hydraulic oil pump, ensure valve body enter oil return inlet T remain constant;
2, relief valve, for limiting the Maximum operating pressure of valve body 7, plays safety protection effect to valve body and system;
3, pilot operated directional control valve changes the flow direction of pressure oil, selects depending on the requirement of its applying working condition;
4, valve body, for each valve set is integrated, arranges its space succinctly attractive in appearance, and valve body Jin oil return inlet T, control port and pressure measurement hydraulic fluid port are screw thread hydraulic fluid port, are convenient to the connection of each pipeline;
5, one-way valve I, one-way valve II, one-way valve III, one-way valve IV, relief valve and pilot operated directional control valve all screw and are integrated with screw thread and valve body, quick and easy for installation.
Brief description of the drawings
Fig. 1 is the utility model perspective view;
Fig. 2 is the utility model structural front view;
Fig. 3 is the utility model structure left view;
Fig. 4 is the utility model structure right elevation;
Fig. 5 is the utility model structure worm's eye view;
Fig. 6 is the utility model the first working principle structural representation;
Fig. 7 is the utility model the second working principle structural representation.
Embodiment
Below in conjunction with accompanying drawing 1-7, a kind of embodiment of the present utility model is described.
For the bridge rectifier valve piece of bidirectional rotation oil pump, there is valve body 7, described valve body 7 upper-end surfaces are provided with pilot operated directional control valve 6 and relief valve 5, its lower end surface is provided with one-way valve I 1, one-way valve II 2 and control port Pil, its left side is provided with one-way valve III 3, its right side is provided with one-way valve IV 4, its front-end face be provided with pump enter oil outlet P1 and pump enter oil outlet P2, valve body enter oil return inlet T and valve body oil outlet A, thereafter end face is provided with pressure measurement hydraulic fluid port M, wherein, one-way valve I 1, one-way valve II 2, one-way valve III 3 and one-way valve IV 4 form bridge rectifier loop and are communicated with pilot operated directional control valve 6 and relief valve 5, bidirectional hydraulic pump 8 be connected to pump enter between return opening P1 and P2.Above-mentioned one-way valve I 1, one-way valve II 2, one-way valve III 3, one-way valve IV 4, relief valve 5 and pilot operated directional control valve 6 all screw and are integrated with screw thread and valve body 7.
Working principle: in the time that two-way oil pump 8 is left-handed, valve body enter oil return inlet T fluid by one-way valve IV 4 through pumps enter oil outlet P2 flow to the inlet port of two-way oil pump 8, the oil outlet of described two-way oil pump 8 flows to 1 import of one-way valve I through pump Jin oil outlet P1 and opens one-way valve I 1 and enter the inner oil duct of valve body 7 and be communicated with pilot operated directional control valve 6 and relief valve 5, sees accompanying drawing 6; When described two-way oil pump 8 dextrorotation, valve body enter oil return inlet T fluid by one-way valve III 3 through pumps enter oil outlet P1 flow to the inlet port of two-way oil pump 8, the oil outlet of described two-way oil pump 8 flows to 2 imports of one-way valve II through pump Jin oil outlet P2 and opens one-way valve II 2 and enter the inner oil duct of valve piece and be communicated with pilot operated directional control valve 6 and relief valve 5, sees accompanying drawing 7.
Pilot operated directional control valve 6 has a control port Pil, in the time that control port Pil has enough oil pressure, promote pilot operated directional control valve 6 spool commutations to right position, the right position of the fluid of coming from one-way valve I 1, one-way valve II 2 by pilot operated directional control valve 6 with valve body enter oil return inlet T connect, oil pressure off-load resorption oil port; When control port Pil is during without oil pressure, pilot operated directional control valve 6 spools are position, left position because spring action returns to, the fluid of coming from one-way valve I 1, one-way valve II 2 is connected with valve body oil outlet A, pressure measurement hydraulic fluid port M by the left position of pilot operated directional control valve 6, fluid enters system works element through valve body oil outlet A, and the operating oil pressure of a gauge measurement valve body oil outlet A can be installed at pressure measurement hydraulic fluid port M place simultaneously; Relief valve 5 integrated on valve body 7 has a setting pressure, and it defines the operating oil pressure that enters pilot operated directional control valve 6, makes its setting value that can not exceed relief valve 5, and system has been played to safety protection effect.
Above-described embodiment, is preferred embodiment of the present utility model, is not used for limiting the utility model practical range, and the equivalence of being done with content described in the utility model claim therefore all changes, within all should being included in the utility model claim scope.
Claims (3)
1. for the bridge rectifier valve piece of bidirectional rotation oil pump, there is valve body (7), it is characterized in that: described valve body (7) upper-end surface is provided with pilot operated directional control valve (6) and relief valve (5), its lower end surface is provided with one-way valve I (1), one-way valve II (2) and control port Pil, its left side is provided with one-way valve III (3), its right side is provided with one-way valve IV (4), its front-end face be provided with pump enter oil outlet P1 and pump enter oil outlet P2, valve body enter oil return inlet T and valve body oil outlet A, thereafter end face is provided with pressure measurement hydraulic fluid port M, wherein, one-way valve I (1), one-way valve II (2), one-way valve III (3) and one-way valve IV (4) form bridge rectifier loop and are communicated with pilot operated directional control valve (6) and relief valve (5), bidirectional hydraulic pump (8) be connected to pump enter between return opening P1 and P2.
2. the bridge rectifier valve piece for bidirectional rotation oil pump according to claim 1, it is characterized in that: when described two-way oil pump (8) is left-handed, the fluid of valve body Jin oil return inlet T flows to the inlet port of two-way oil pump (8) through pump Jin oil outlet P2 by one-way valve IV (4), the oil outlet of described two-way oil pump (8) flows to one-way valve I (1) import through pump Jin oil outlet P1 and opens one-way valve I (1) and enter the inner oil duct of valve body (7) and be communicated with pilot operated directional control valve (6) and relief valve (5); When described two-way oil pump (8) dextrorotation, the fluid of valve body Jin oil return inlet T flows to the inlet port of two-way oil pump (8) through pump Jin oil outlet P1 by one-way valve III (3), the oil outlet of described two-way oil pump (8) flows to one-way valve II (2) import through pump Jin oil outlet P2 and opens one-way valve II (2) and enter the inner oil duct of valve piece and be communicated with pilot operated directional control valve (6) and relief valve (5).
3. the bridge rectifier valve piece for bidirectional rotation oil pump according to claim 1 and 2, is characterized in that: described one-way valve I (1), one-way valve II (2), one-way valve III (3), one-way valve IV (4), relief valve (5) and pilot operated directional control valve (6) are all used screw thread and valve body (7) to screw and be integrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420040657.6U CN203731067U (en) | 2014-01-22 | 2014-01-22 | Bridge rectifying valve block for bilateral backing pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420040657.6U CN203731067U (en) | 2014-01-22 | 2014-01-22 | Bridge rectifying valve block for bilateral backing pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203731067U true CN203731067U (en) | 2014-07-23 |
Family
ID=51201142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420040657.6U Expired - Lifetime CN203731067U (en) | 2014-01-22 | 2014-01-22 | Bridge rectifying valve block for bilateral backing pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203731067U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775813A (en) * | 2014-01-22 | 2014-05-07 | 宝鸡南车时代工程机械有限公司 | Bridge-type rectifying valve block for bi-directional rotating oil pump |
| CN104500376A (en) * | 2014-12-06 | 2015-04-08 | 杭州科技职业技术学院 | Wind-driven deep-well pump |
| CN106895036A (en) * | 2017-03-31 | 2017-06-27 | 宁波华液机器制造有限公司 | A kind of bridge rectifier valve |
-
2014
- 2014-01-22 CN CN201420040657.6U patent/CN203731067U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775813A (en) * | 2014-01-22 | 2014-05-07 | 宝鸡南车时代工程机械有限公司 | Bridge-type rectifying valve block for bi-directional rotating oil pump |
| CN104500376A (en) * | 2014-12-06 | 2015-04-08 | 杭州科技职业技术学院 | Wind-driven deep-well pump |
| CN106895036A (en) * | 2017-03-31 | 2017-06-27 | 宁波华液机器制造有限公司 | A kind of bridge rectifier valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 721003 Baoji province Shaanxi City Jintai District Baofu Road No. 118 Patentee after: BAOJI CRRC TIMES ENGINEERING MACHINERY Co.,Ltd. Address before: 721003 Baoji province Shaanxi City Jintai District Baofu Road No. 118 Patentee before: BAOJI CSR TIMES ENGINEERING MACHINERY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140723 |
|
| CX01 | Expiry of patent term |