CN103775813A - Bridge-type rectifying valve block for bi-directional rotating oil pump - Google Patents
Bridge-type rectifying valve block for bi-directional rotating oil pump Download PDFInfo
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- CN103775813A CN103775813A CN201410029849.1A CN201410029849A CN103775813A CN 103775813 A CN103775813 A CN 103775813A CN 201410029849 A CN201410029849 A CN 201410029849A CN 103775813 A CN103775813 A CN 103775813A
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Abstract
The invention provides a bridge-type rectifying valve block for a bi-directional rotating oil pump. The bridge-type rectifying valve block is provided with a valve body, wherein the upper end surface of the valve body is provided with a hydraulic control reversing valve and an overflow valve, the lower end surface of the valve body is provided with a one-way valve I, a one-way valve II and a control oil port Pil, the left end surface of the valve body is provided with a one-way valve III, the right end surface of the valve body is provided with a one-way valve IV, the front end surface of the valve body is provided with a pump oil inlet/outlet P1, a pump oil inlet/outlet P2, a valve body oil inlet/outlet T and a valve body oil outlet A, the rear end surface of the valve body is provided with a pressure measuring oil port M, the one-way valve I, the one-way valve II, the one-way valve III and the one-way valve IV form a bridge-type rectifying loop and communicated with the hydraulic control reversing valve and the overflow valve, and a bi-directional hydraulic pump is arranged between the pump oil inlet/outlet P1 and the pump oil inlet/outlet P2. An oil suction circuit and an oil outlet circuit of a bi-directional rotating oil pump are guaranteed not to be changed through the switch of oil circuits on the valve body, a high-pressure high-rotation-speed oil pump can be selected as the bi-directional rotating oil pump, and the practical value is high.
Description
Technical field
The invention belongs to technical field of engineering machinery, be 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.
Summary of the invention
The technical problem that the present invention solves: a kind of bridge rectifier valve piece for bidirectional rotation oil pump is provided, by the oil circuit conversion on valve body guarantee 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 used in the present invention: 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 present invention's 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, guarantee 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.
Accompanying drawing explanation
Fig. 1 is perspective view of the present invention;
Fig. 2 is structural front view of the present invention;
Fig. 3 is structure left view of the present invention;
Fig. 4 is structure right elevation of the present invention;
Fig. 5 is structure worm's eye view of the present invention;
Fig. 6 is the first working principle structural representation of the present invention;
Fig. 7 is the second working principle structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing 1-7, a kind of embodiment of the present invention 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 invention, is not used for limiting the scope of the present invention, and the equivalence of being done with content described in the claims in the present invention therefore all changes, within all should being included in the claims in the present invention 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 |
|---|---|---|---|
| CN201410029849.1A CN103775813A (en) | 2014-01-22 | 2014-01-22 | Bridge-type rectifying valve block for bi-directional rotating oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410029849.1A CN103775813A (en) | 2014-01-22 | 2014-01-22 | Bridge-type rectifying valve block for bi-directional rotating oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103775813A true CN103775813A (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410029849.1A Pending CN103775813A (en) | 2014-01-22 | 2014-01-22 | Bridge-type rectifying valve block for bi-directional rotating oil pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN103775813A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202349A (en) * | 2015-09-18 | 2015-12-30 | 杭州前进齿轮箱集团股份有限公司 | Conversion device capable of realizing bidirectional operation of unidirectional lubricating pump |
| CN106593571A (en) * | 2015-10-16 | 2017-04-26 | 熵零控股股份有限公司 | Volume-type fluid mechanism |
| 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 |
| CN114198357A (en) * | 2021-12-10 | 2022-03-18 | 湖北超星液压自动化有限公司 | Bridge type manual hydraulic pump, hydraulic system and control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4627281A (en) * | 1985-05-10 | 1986-12-09 | Tavis Corporation | Tank gaging system |
| JP2006336805A (en) * | 2005-06-03 | 2006-12-14 | Shin Caterpillar Mitsubishi Ltd | Control device of work machine |
| CN201568392U (en) * | 2009-12-17 | 2010-09-01 | 王何新 | Bridge oil piping assembly |
| CN102937125A (en) * | 2012-11-06 | 2013-02-20 | 三一重工股份有限公司 | Testing system of hydraulic motor |
| CN203731067U (en) * | 2014-01-22 | 2014-07-23 | 宝鸡南车时代工程机械有限公司 | Bridge rectifying valve block for bilateral backing pump |
-
2014
- 2014-01-22 CN CN201410029849.1A patent/CN103775813A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4627281A (en) * | 1985-05-10 | 1986-12-09 | Tavis Corporation | Tank gaging system |
| JP2006336805A (en) * | 2005-06-03 | 2006-12-14 | Shin Caterpillar Mitsubishi Ltd | Control device of work machine |
| CN201568392U (en) * | 2009-12-17 | 2010-09-01 | 王何新 | Bridge oil piping assembly |
| CN102937125A (en) * | 2012-11-06 | 2013-02-20 | 三一重工股份有限公司 | Testing system of hydraulic motor |
| CN203731067U (en) * | 2014-01-22 | 2014-07-23 | 宝鸡南车时代工程机械有限公司 | Bridge rectifying valve block for bilateral backing pump |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202349A (en) * | 2015-09-18 | 2015-12-30 | 杭州前进齿轮箱集团股份有限公司 | Conversion device capable of realizing bidirectional operation of unidirectional lubricating pump |
| CN106593571A (en) * | 2015-10-16 | 2017-04-26 | 熵零控股股份有限公司 | Volume-type fluid mechanism |
| 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 |
| CN114198357A (en) * | 2021-12-10 | 2022-03-18 | 湖北超星液压自动化有限公司 | Bridge type manual hydraulic pump, hydraulic system and control method |
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Application publication date: 20140507 |