CN106168201A - A kind of many discharge capacities reciprocating hydraulic pump - Google Patents
A kind of many discharge capacities reciprocating hydraulic pump Download PDFInfo
- Publication number
- CN106168201A CN106168201A CN201610686244.9A CN201610686244A CN106168201A CN 106168201 A CN106168201 A CN 106168201A CN 201610686244 A CN201610686244 A CN 201610686244A CN 106168201 A CN106168201 A CN 106168201A
- Authority
- CN
- China
- Prior art keywords
- valve
- plunger shaft
- pressure chamber
- hydraulic oil
- pull bar
- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B3/00—Machines or pumps with pistons coacting within one cylinder, e.g. multi-stage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a kind of many discharge capacities reciprocating hydraulic pump, often group pump includes push-pull bar, fuel tank, two pistons and two plunger shaft, each plunger shaft is divided into three cavitys by corresponding piston respectively, three cavitys of one of them plunger shaft are configured to press chamber and a high pressure chest to form in two, three cavitys of another plunger shaft are configured to be made up of two low pressure chamber and a high pressure chest, described push-pull bar is hinged on free bearing, the one end of two piston rods is connected with push-pull bar respectively, and junction point lays respectively at the both sides of free bearing, each cavity is provided with inlet valve and delivery valve, high pressure chest delivery valve is directly connected with hydraulic oil output circuit.The present invention is by each low pressure chamber, middle pressure chamber and high pressure chest and the co-operating of valve, it is achieved low pressure huge discharge, discharge capacity in middle pressure, the hydraulic oil output characteristic of high-pressure small-displacement；When also may be implemented in reciprocating action, the action of both direction all has hydraulic oil to export, and improves work efficiency.
Description
Technical field
The present invention relates to a kind of reciprocating hydraulic pump, a kind of many discharge capacities reciprocating hydraulic pump.
Background technology
The hydraulic hand-pump of application typically has high-pressure small-displacement and two kinds of output states of low pressure huge discharge at present, it is adaptable to
High voltage load it is mainly, the quick acting when output of its low pressure is to be applied to zero load during work.Due to for adapting to use during high pressure
Demand, its high pressure discharge capacity is the least, and quick acting when being to realize Light Condition, its low pressure discharge capacity is bigger so that operating on low voltage
Pressure is the least.Therefore, if be in the work of middle pressure condition, also it is only capable of using the small displacement output of high pressure to be operated, it is impossible to fill
Divide and utilize manual operation power, make work efficiency reduce.Additionally, for making simple in construction, existing hydraulic hand-pump typically uses plunger
Form so that during hand reciprocating operation, the action in only one of which direction has hydraulic oil to export, and there is liquid the i.e. only time of about half
Force feed exports, and work efficiency is low.Therefore, when needing the use occasion of efficiently output, it is impossible to when giving full play to manpower saving
Between.Additionally, existing manual pump is when high-pressure work, low-pressure side many employings overflow manner refluxes, and therefore increases power attenuation.
Summary of the invention
In place of it is an object of the invention to overcome the deficiencies in the prior art, and provide a kind of and make full use of manpower, work
Make efficiency much higher discharge capacity reciprocating hydraulic pump.
A kind of many discharge capacities reciprocating hydraulic pump, often group pump includes push-pull bar, fuel tank, two pistons and two plunger shaft, often
Individual plunger shaft is divided into three cavitys by corresponding piston respectively, and three cavitys of one of them plunger shaft are configured to by two
Middle pressure chamber and a high pressure chest composition, three cavitys of another plunger shaft are configured to by two low pressure chamber and a high pressure chest group
Becoming, described push-pull bar is hinged on free bearing, and the one end of two piston rods is connected with push-pull bar and junction point difference respectively
Being positioned at the both sides of free bearing, each cavity is provided with inlet valve and delivery valve, and inlet valve links up fuel tank and cavity, middle pressure chamber with
The delivery valve of low pressure chamber is connected with hydraulic oil outlet tube through check valve, the delivery valve of middle pressure chamber and low pressure chamber the most respectively through in press and let out
Pressure valve and low-voltage decompression valve communicate with fuel tank, and high pressure chest delivery valve is directly connected with hydraulic oil output circuit.
Many discharge capacities reciprocating hydraulic pump of the present invention, owing to being respectively provided with two plunger shaft often organizing many discharge capacities reciprocating hydraulic pump,
Each plunger shaft is made up of the cylindrical cavity that diameter is different, by piston be separated to form two high pressure chests, two are pressed chamber and
Two low pressure chamber, each cavity after partition is respectively provided with two contrary check valves of conducting direction and constitutes delivery valve and inlet valve,
Piston is connected on push-pull bar by piston rod, and push-pull bar is then articulated with on free bearing, and piston rod is respectively in the both sides of free bearing, when
When manipulation push-pull bar makees push pull maneuver, push-pull bar swings around free bearing, and now mesohigh piston reversely moves with low high pressure piston, respectively
After the chamber that volume increases increases due to volume, pressure reduces, and the closed check valve in fuel-displaced direction, the hydraulic oil of fuel tank is through oil-feed
The check valve in direction is to each chamber repairing；And pressure increases after the chamber that each volume reduces reduces due to volume, oil-feed direction
Closed check valve, each chamber hydraulic oil check valve through fuel-displaced direction exports after output circuit confluxes.When operating pressure exceedes
During Low-pressure load discharge valve opening pressure, the hydraulic oil flow that low pressure chamber pumps out flows back to fuel tank through Low-pressure load discharge valve, now low pressure oil way with
The check valve cut-off arranged between hydraulic oil output circuit, prevents the oil in hydraulic oil output circuit from refluxing to low pressure oil way.Work as work
When pressure exceedes middle pressure off-load valve opening pressure, the hydraulic oil flow warp that middle pressure chamber pumps out press unloader to flow back to fuel tank, now
The check valve cut-off arranged between middle force feed road and hydraulic oil output circuit, prevents the oil in hydraulic oil output circuit to middle force feed road
Backflow.
Hydraulic oil output circuit is also associated with relief valve.
When operating pressure exceedes opening pressure of safety valve, output hydraulic pressure oil, through relief valve overflow, prevents hypertonia from damaging
Bad equipment.
Multiplex pump can be formed by many discharge capacities reciprocating hydraulic pump by organizing pump combination more.
In sum, the present invention following advantage compared to existing technology:
The present invention is by each low pressure chamber, middle pressure chamber and high pressure chest and the co-operating of valve, it is achieved low pressure huge discharge, arranges in middle pressure
Amount, the hydraulic oil output characteristic of high-pressure small-displacement；When also may be implemented in reciprocating action, the action of both direction all has hydraulic oil defeated
Go out, improve work efficiency.
Accompanying drawing explanation
Fig. 1 is the principle schematic of a kind of many discharge capacities reciprocating hydraulic pump of the present invention.
Label declaration 1 push-pull bar 2 piston 3 is pressed in chamber 4, high pressure chest 5 and press unloader 6 check valve 7 relief valve 8 fuel tank 9 low
Pressure unloader 10 low pressure chamber 11 free bearing.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in more detail.
Embodiment 1
A kind of three discharge capacity reciprocating hydraulic pumps, often group pump includes push-pull bar 1,8, two pistons 2 of fuel tank and two plunger shaft, often
Individual plunger shaft is divided into three cavitys by corresponding piston respectively, and three cavitys of one of them plunger shaft are configured to by two
Middle pressure chamber 3 and a high pressure chest 4 form, and three cavitys of another plunger shaft are configured to by two low pressure chamber 10 and a high pressure
Chamber forms, and described push-pull bar is hinged on free bearing 11, and the one end of two piston rods is connected with push-pull bar respectively and is connected
Point lays respectively at the both sides of free bearing, and each cavity is provided with inlet valve and delivery valve, and inlet valve links up fuel tank and cavity, in
Pressure chamber is connected with hydraulic oil outlet tube through check valve 6 with the delivery valve of low pressure chamber, and the delivery valve of middle pressure chamber and low pressure chamber is also distinguished
Pressing relief valve 5 and low-voltage decompression valve 9 to communicate with fuel tank in Jing, high pressure chest delivery valve is directly connected with hydraulic oil output circuit.?
Relief valve 7 it is also associated with on hydraulic oil output circuit.
The not described part of the present embodiment is same as the prior art.
Claims (3)
1. discharge capacity reciprocating hydraulic pump more than a kind, it is characterised in that: often group pump includes push-pull bar, fuel tank, two pistons and two
Plunger shaft, each plunger shaft is divided into three cavitys by corresponding piston respectively, three cavity structures of one of them plunger shaft
Becoming and press chamber and a high pressure chest to form in two, three cavitys of another plunger shaft are configured to by two low pressure chamber and
Individual high pressure chest form, described push-pull bar is hinged on free bearing, the one end of two piston rods be connected with push-pull bar respectively and
Junction point lays respectively at the both sides of free bearing, and each cavity is provided with inlet valve and delivery valve, and inlet valve links up fuel tank with empty
Chamber, middle pressure chamber is connected with hydraulic oil outlet tube through check valve with the delivery valve of low pressure chamber, and the delivery valve of middle pressure chamber and low pressure chamber is also
Pressing relief valve and low-voltage decompression valve to communicate with fuel tank respectively in warp, high pressure chest delivery valve is directly connected with hydraulic oil output circuit.
2. according to claim 1 more than discharge capacity reciprocating hydraulic pump, it is characterised in that: connect on hydraulic oil output circuit and have safety
Valve.
3. according to claim 2 more than discharge capacity reciprocating hydraulic pump, it is characterised in that: by many discharge capacities reciprocating hydraulic pump by organizing pump group more
Close, form multiplex pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610686244.9A CN106168201A (en) | 2016-08-18 | 2016-08-18 | A kind of many discharge capacities reciprocating hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610686244.9A CN106168201A (en) | 2016-08-18 | 2016-08-18 | A kind of many discharge capacities reciprocating hydraulic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106168201A true CN106168201A (en) | 2016-11-30 |
Family
ID=57375842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610686244.9A Pending CN106168201A (en) | 2016-08-18 | 2016-08-18 | A kind of many discharge capacities reciprocating hydraulic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106168201A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223464A (en) * | 2017-01-16 | 2018-06-29 | 郑州大学 | A kind of reciprocal continuous pressurizing system of automatic pressure-maintaining |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2272497Y (en) * | 1996-08-07 | 1998-01-14 | 吴审言 | Double-speed hydraulic oil pump |
| CN2544114Y (en) * | 2001-09-19 | 2003-04-09 | 武汉华液机械自控有限公司 | Double-action double-displacement hydraulic manual pump |
| US20040103762A1 (en) * | 2002-09-19 | 2004-06-03 | Alexander Kipfelsberger | Hydraulic ratchet wrench with double-action hydraulic cylinder piston drive |
| CN1789714A (en) * | 2004-12-18 | 2006-06-21 | 崔朝轩 | Dual-action pump head assembly of triplex plunger pump |
| CN203051016U (en) * | 2013-02-14 | 2013-07-10 | 天津市仕杰达能源技术开发有限公司 | Oilfield water injection unpowered pressurization system |
| CN104564578A (en) * | 2014-12-10 | 2015-04-29 | 湘潭楚元精密机械有限公司 | Manual variable oil pump |
| CN104632610A (en) * | 2014-12-29 | 2015-05-20 | 浙江理工大学 | Electric linear reciprocation type double-acting quantification plunger pump |
| CN205013217U (en) * | 2015-09-30 | 2016-02-03 | 南京大地水刀股份有限公司 | Vertical manual pump of two effects |
| CN205089540U (en) * | 2015-09-14 | 2016-03-16 | 江苏申蓝水处理设备有限公司 | Manual single cylinder force pump of compact |
| CN205977570U (en) * | 2016-08-18 | 2017-02-22 | 福建省农业机械化研究所 | Multirow volume hydraulic pump that reciprocates |
-
2016
- 2016-08-18 CN CN201610686244.9A patent/CN106168201A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2272497Y (en) * | 1996-08-07 | 1998-01-14 | 吴审言 | Double-speed hydraulic oil pump |
| CN2544114Y (en) * | 2001-09-19 | 2003-04-09 | 武汉华液机械自控有限公司 | Double-action double-displacement hydraulic manual pump |
| US20040103762A1 (en) * | 2002-09-19 | 2004-06-03 | Alexander Kipfelsberger | Hydraulic ratchet wrench with double-action hydraulic cylinder piston drive |
| CN1789714A (en) * | 2004-12-18 | 2006-06-21 | 崔朝轩 | Dual-action pump head assembly of triplex plunger pump |
| CN203051016U (en) * | 2013-02-14 | 2013-07-10 | 天津市仕杰达能源技术开发有限公司 | Oilfield water injection unpowered pressurization system |
| CN104564578A (en) * | 2014-12-10 | 2015-04-29 | 湘潭楚元精密机械有限公司 | Manual variable oil pump |
| CN104632610A (en) * | 2014-12-29 | 2015-05-20 | 浙江理工大学 | Electric linear reciprocation type double-acting quantification plunger pump |
| CN205089540U (en) * | 2015-09-14 | 2016-03-16 | 江苏申蓝水处理设备有限公司 | Manual single cylinder force pump of compact |
| CN205013217U (en) * | 2015-09-30 | 2016-02-03 | 南京大地水刀股份有限公司 | Vertical manual pump of two effects |
| CN205977570U (en) * | 2016-08-18 | 2017-02-22 | 福建省农业机械化研究所 | Multirow volume hydraulic pump that reciprocates |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223464A (en) * | 2017-01-16 | 2018-06-29 | 郑州大学 | A kind of reciprocal continuous pressurizing system of automatic pressure-maintaining |
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