CN202215450U - Overload pneumatic pump - Google Patents
Overload pneumatic pump Download PDFInfo
- Publication number
- CN202215450U CN202215450U CN2011203272917U CN201120327291U CN202215450U CN 202215450 U CN202215450 U CN 202215450U CN 2011203272917 U CN2011203272917 U CN 2011203272917U CN 201120327291 U CN201120327291 U CN 201120327291U CN 202215450 U CN202215450 U CN 202215450U
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- oil
- pneumatic
- valve
- steel ball
- cylinder cavity
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Abstract
The utility model discloses an overload pneumatic pump, which comprises an oil tank which is provided with a pneumatic pump single body and a control valve. The pneumatic pump single body comprises a pressure source cylinder portion, an oil pressure portion and a pneumatic control valve air cylinder portion, wherein the pressure source cylinder portion is provided with an air cylinder cavity body, a push piston and a returning spring matched with the push piston are arranged in the air cylinder cavity body, the push piston is provided with a pressurizing rod, one end of the pressurizing rod extends into an oil pressure cavity body which is arranged on the oil pressure portion and in clearance fit with the pressurizing rod, the oil pressure cavity body is respectively communicated with an oil outlet and an oil inlet, and the control valve comprises a pressure regulation valve communicated with the oil outlet and an electromagnetic directional valve. The overload pneumatic pump is compact in structure, can repeatedly, quickly and automatically suck oil, pump oil by pressure and return oil, and has the function of overload protection.
Description
Technical field
The utility model relates to a kind of pneumatic pump pumping plant, relates in particular to a kind of pneumatic pumping of overload that can carry out automatic oil suction, manual fuel-displaced action repeatedly and have overload protection function.
Background technique
Existing pneumatic pump and oil hydraulic pump be mostly for split, is that 200820088912.9 Chinese patent discloses a kind of pneumatic pump like application number, has cylinder block; Place the cylinder in the cylinder block; Be installed in the upper and lower seal on the cylinder, have a pair of symmetric arrangement and the identical inner return-air hole of characteristic at the cylinder block inwall, the inner return-air hole of same end has two up and down; Vertically arrange along the same axis line; Opening is at the cylinder block inwall, and through it is communicated with, the distance between two the intercommunicating pore center lines in inner return-air hole is less than the distance between the upper and lower seal in the wall.Though this pneumatic pump is perseveration fast; But its delivery pressure is less, on producing, can't reach the operating system call of machine, though and simple oil hydraulic pump incoming pressure is bigger; But perseveration is slower, can't satisfy the requirement of machine operation system equally.
Summary of the invention
The utility model mainly provides the pneumatic pumping of a kind of overload; Adopt hydraulic pressure and the combination of air pressure one, compact structure, can be repeatedly and carry out automatic oil suction apace, air pressure is bought oil and oil return is moved; Satisfy the requirement of machine operation system, and had overload protection function.
The above-mentioned technical problem of the utility model mainly is able to solve through following technical proposals: it comprises fuel tank; Said fuel tank is provided with pneumatic pump monomer and control valve; Said pneumatic pump monomer comprises pressure source cylinder portion, oil pressure portion and Pneumatic valve cylinder portion; Said pressure source cylinder portion is provided with the pneumatic cylinder cavity; Be provided with the Returnning spring that promotes piston and match in the said pneumatic cylinder cavity with said promotion piston; Promote piston and be provided with booster rod, said booster rod one end extend in that be provided with in the oil pressure portion and the oil hydraulic cylinder cavity booster rod Spielpassung, said oil hydraulic cylinder cavity respectively with oil outlet with go into oilhole and communicate; Be provided with in the said oil hydraulic cylinder cavity delivery valve seat that matches with oil outlet and with go into that oilhole matches go into the fuel tap seat; Said Pneumatic valve cylinder portion comprises the oil back chamber that communicates with said oil outlet that Pneumatic valve cylinder and said Pneumatic valve cylinder one side are provided with, and is provided with the steel ball poppet valve of control oil outlet path in the said oil back chamber, and said control valve comprises pressure regulator valve and the solenoid directional control valve that is communicated with oil outlet.The utility model is the power unit of hydraulic operating system, and fuel tank provides hydraulic oil, the pressure of pressure regulator valve control pressure oil output, and solenoid directional control valve controls the action of hydraulic operating system, the pneumatic pump monomer is converted into hydraulic pressure with air pressure.The pressure source cylinder portion of pneumatic pump monomer links to each other with the external pressure source, moves compression reseting spring thereby promote piston; And drive and promote the booster rod that piston links to each other; Moving of the booster rod of the utility model makes the oil hydraulic cylinder cavity volume diminish again, produces oil pressure at the oil hydraulic cylinder cavity, and hydraulic oil is opened delivery valve seat; Flow out along oil outlet, realize buying oil action; When removing the external pressure source, the Returnning spring return promotes piston together with the booster rod reversing motion; Make the oil hydraulic cylinder cavity volume become big; At this moment, delivery valve seat is closed, and goes into the fuel tap seat because inside and outside differential pressure is opened; Hydraulic oil is realized automatic oil suction action from entering in the oil hydraulic cylinder cavity with going into the fuel tank that oilhole links to each other.Through the control to outside gas pressure source, the utility model can be realized the action of buying oil of automatic oil suction, air pressure repeatedly.When the oil outlet internal pressure was transshipped, the utility model can also drive the steel ball poppet valve through the cylinder air pressure of control Pneumatic valve cylinder portion, to realize oil return, reaches the overload protection action.
As preferably, the pressure source cylinder portion of said pneumatic cylinder cavity one end is provided with the booster rod hole that communicates with it, and the said booster rod the other end cooperates with said booster rod interporal lacuna.The booster rod of the utility model can move in the booster rod hole.
As preferably; Said delivery valve seat comprises the fuel-displaced valve gap that has opening, the spring that a steel ball and an end contact with steel ball, the other end contacts with fuel-displaced valve gap of sealing outlet valve cap seal hydraulic fluid port; Saidly go into the fuel tap seat and comprise the spring that a steel ball and an end contact with steel ball, the other end contacts with fuel-displaced valve gap that fuel tap lid, sealing are gone into fuel tap cap seal hydraulic fluid port of going into that has the oil sealing mouth; And said outlet valve cap seal hydraulic fluid port is outside the oil hydraulic cylinder cavity, saidly goes into fuel tap cap seal hydraulic fluid port towards the oil hydraulic cylinder cavity.Delivery valve seat is used to control hydraulic oil output, goes into fuel tap seat control hydraulic oil and inputs to the oil hydraulic cylinder cavity from fuel tank.The steel ball installation direction of going in fuel tap lid and the fuel-displaced valve gap is opposite, is not open or close simultaneously in order to guarantee delivery valve seat and to go into the fuel tap seat.
As preferably, said Pneumatic valve cylinder includes a Pneumatic valve cylinder cavity, the return spring that is provided with the gas control piston and matches in the said Pneumatic valve cylinder cavity with said gas control piston, and said gas control piston is provided with to carry to be tried to gain.Carrying out oil return when action, through toward Pneumatic valve cylinder cavity input control air pressure, can promote the gas control piston and be communicated with the coupled Mu Yiqi that carries and move, and return spring is being used for the gas control piston and carries Mu Huiwei.
As preferably; Said Pneumatic valve cylinder portion is provided with spill port; Said oil back chamber communicates with spill port, is provided with the steel ball seat in the said oil back chamber, and said steel ball seat communicates with spill port; The steel ball seat is provided with the said steel ball poppet valve of path between control oil outlet and the oil back chamber, said carry trying to gain stretch into the steel ball seat and link to each other with said steel ball poppet valve.Be moved to the left when carrying trying to gain during oil return; The steel ball poppet valve also is moved to the left synchronously, makes the steel ball poppet valve get lodged on the oil outlet oil circuit and cuts off oil outlet, and the steel ball seat also is opened when the steel ball poppet valve moves; Pressure oil can only enter into oil back chamber, and flows back to fuel tank from spill port.Certainly also control the aperture of oil outlet, thereby come the pressure and the flow of regulating system through the steel ball poppet valve.
As preferably, said solenoid directional control valve is two five-way valves.
The beneficial effect that the utility model brings is, the utility model adopts hydraulic pressure and the combination of air pressure one, compact structure, can be repeatedly and carry out automatic oil suction apace, air pressure is bought oil and oil return is moved, and has overload protection function.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the utility model;
Accompanying drawing 2 is a kind of internal structure schematic representation of the pneumatic pump monomer of the utility model.
Label declaration: 1A, pneumatic pump monomer; 1, pressure source cylinder portion; 11, pneumatic cylinder cavity; 12, promote piston; 13, Returnning spring; 14, booster rod; 2, oil pressure portion; 21, oil hydraulic cylinder cavity; 22, oil outlet; 23, go into oilhole; 24, delivery valve seat; 25, go into the fuel tap seat; 3, Pneumatic valve cylinder portion; 31, steel ball poppet valve; 32, Pneumatic valve cylinder cavity; 33, carry and trying to gain; 34, gas control piston; 35, return spring; 36, oil back chamber; 37, spill port; 38, steel ball seat; 2A, fuel tank; 3A, pressure regulator valve; 4A, solenoid directional control valve.
Embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically the technological scheme of the utility model.
Embodiment: the pneumatic pumping of the overload of present embodiment; Like Fig. 1, shown in 2; The solenoid directional control valve 4A that comprises fuel tank 2A, pneumatic pump monomer 1A, pressure regulator valve 3A and two five-ways, pressure regulator valve 3A and solenoid directional control valve 4A are connected on oil outlet 22 oil circuits of pneumatic pump monomer 1A through oil pipe.
As shown in Figure 2, pneumatic pump monomer 1A is combined into one by pressure source cylinder portion 1, oil pressure portion 2 and 3 threes of Pneumatic valve cylinder portion.
Be shaped on pneumatic cylinder cavity 11 in the pressure source cylinder portion 1; Be equipped with in the pneumatic cylinder cavity 11 and promote piston 12 and be installed in the Returnning spring 13 that promotes piston 12 1 sides; Promote to be mounted with a booster rod 14 on the piston 12, booster rod 14 1 ends extend in the oil hydraulic cylinder cavity 21 in the oil pressure portion 2, and with this section oil hydraulic cylinder cavity 21 Spielpassung; The pressure source cylinder portion 1 of pneumatic cylinder cavity 11 1 ends is shaped on the booster rod hole that communicates with it, and booster rod 14 the other ends cooperate with this booster rod interporal lacuna.
Oil hydraulic cylinder cavity 21 respectively with oil outlet 22 with go into oilhole 23 and communicate; What oilhole 23 oil circuits were gone in delivery valve seat 24 and the control that control oil outlet 22 oil circuits are installed in the oil hydraulic cylinder cavity 21 goes into fuel tap seat 25; Delivery valve seat 24 comprises the fuel-displaced valve gap that has opening, the spring that a steel ball and an end contact with steel ball, the other end contacts with fuel-displaced valve gap of sealing outlet valve cap seal hydraulic fluid port; Go into fuel tap seat 25 and comprise the spring that a steel ball and an end contact with steel ball, the other end contacts with fuel-displaced valve gap that fuel tap covers, fuel tap cap seal hydraulic fluid port is gone in sealing of going into that has the oil sealing mouth; And assurance outlet valve cap seal hydraulic fluid port is gone into fuel tap cap seal hydraulic fluid port towards oil hydraulic cylinder cavity 21 when installing outside oil hydraulic cylinder cavity 21.
The oil back chamber 36 that communicates with oil outlet 22 that Pneumatic valve cylinder portion 3 comprises the Pneumatic valve cylinder and is positioned at Pneumatic valve cylinder one side; The Pneumatic valve cylinder comprises Pneumatic valve cylinder cavity 32; The return spring 35 that gas control piston 34 is installed in the Pneumatic valve cylinder cavity 32 and matches with gas control piston 34; Be mounted with to carry on the gas control piston 34 and try to gain 33, also be shaped on the spill port 37 that communicates with oil back chamber 36 in the Pneumatic valve cylinder portion 3, the steel ball seat 38 that communicates with spill port 37 is installed in the oil back chamber 36; Steel ball seat 38 is provided with the steel ball poppet valve 31 of path between control oil outlet 22 and the oil back chamber 36, carries trying to gain 33 and stretching into steel ball seat 38 and link to each other with steel ball poppet valve 31.
During use, the inlet hole input air pressure cylinder cavity 11 of pressurized gas through being provided with in the pressure source cylinder portion 1 with the outside promotes piston 12; Make promotion piston 12 overcome and move right, and with Returnning spring 13 compressions, also move right with the booster rod 14 that promotes piston 12 interlocks this moment; Hydraulic oil in the extruding oil hydraulic cylinder cavity 21; Produce oil pressure, thereby make the oil sealing mouth on the delivery valve seat 24 open, pressure oil is input to oil outlet 22 from the oil sealing mouth on the delivery valve seat 24; When stopping in pneumatic cylinder cavity 11, importing pressurized gas; Do not have the pressure effect owing to promote piston 12 one sides, Returnning spring 13 begins to reset, and promotes piston 12 and promoted with booster rod 14 to left movement by spring force; This moment, delivery valve seat 24 was closed; Because booster rod 14 when left movement, can form vacuum in oil hydraulic cylinder cavity 21, go into fuel tap seat 25 interior oil sealing mouths this moment because the existence of pressure reduction is opened; Be drawn into oil hydraulic cylinder cavity 21 with the hydraulic oil in the fuel tank 2A that the pneumatic pump monomer links to each other from going into oilhole 23, for the next one is bought oil ready.Can be through can carry out the action that automatic oil suction, air pressure are bought oil repeatedly to the control of outside input pressurized gas.When the oil outlet internal pressure was transshipped, the input pressurized gas promoted gas control piston 34 in Pneumatic valve cylinder cavity 32; Make carrying of linking to each other with gas control piston 34 try to gain 33 to left movement, and promote the oil circuit that steel ball poppet valve 31 cuts off oil outlet 22, steel ball seat 38 also is opened when steel ball poppet valve 31 moves; Pressure oil enters into oil back chamber 36 from oil hydraulic cylinder cavity 21; And flow back in the fuel tank 2A that is connected with spill port 37 from spill port 37, accomplish oil return, reach overload protective function.When carrying out the pressure adjusting, only need control pressure regulator valve 3A to regulate and get final product.When carrying out hydraulic operating system action switching, only need to use solenoid directional control valve 4A to regulate and get final product.
Claims (8)
1. the pneumatic pumping of an overload; It is characterized in that, comprise fuel tank, said fuel tank is provided with pneumatic pump monomer and control valve; Said pneumatic pump monomer comprises pressure source cylinder portion, oil pressure portion and Pneumatic valve cylinder portion; Said pressure source cylinder portion is provided with the pneumatic cylinder cavity, is provided with the Returnning spring that promotes piston and match with said promotion piston in the said pneumatic cylinder cavity, promotes piston and is provided with booster rod; Said booster rod one end extend in that be provided with in the oil pressure portion and the oil hydraulic cylinder cavity booster rod Spielpassung; Said oil hydraulic cylinder cavity respectively with oil outlet with go into oilhole and communicate, be provided with in the said oil hydraulic cylinder cavity delivery valve seat that matches with oil outlet and with go into that oilhole matches go into the fuel tap seat, said Pneumatic valve cylinder portion comprises the oil back chamber that communicates with said oil outlet that Pneumatic valve cylinder and said Pneumatic valve cylinder one side are provided with; Be provided with the steel ball poppet valve of control oil outlet path in the said oil back chamber, said control valve comprises pressure regulator valve and the solenoid directional control valve that is communicated with oil outlet.
2. the pneumatic pumping of overload according to claim 1 is characterized in that, the pressure source cylinder portion of said pneumatic cylinder cavity one end is provided with the booster rod hole that communicates with it, and the said booster rod the other end cooperates with said booster rod interporal lacuna.
3. the pneumatic pumping of overload according to claim 1; It is characterized in that; Said delivery valve seat comprises the fuel-displaced valve gap that has opening, the spring that a steel ball and an end contact with steel ball, the other end contacts with fuel-displaced valve gap of sealing outlet valve cap seal hydraulic fluid port; Saidly go into the fuel tap seat and comprise the spring that a steel ball and an end contact with steel ball, the other end contacts with fuel-displaced valve gap that fuel tap lid, sealing are gone into fuel tap cap seal hydraulic fluid port of going into that has the oil sealing mouth; And said outlet valve cap seal hydraulic fluid port is outside the oil hydraulic cylinder cavity, saidly goes into fuel tap cap seal hydraulic fluid port towards the oil hydraulic cylinder cavity.
4. the pneumatic pumping of overload according to claim 1; It is characterized in that; Said Pneumatic valve cylinder includes a Pneumatic valve cylinder cavity, the return spring that is provided with the gas control piston and matches in the said Pneumatic valve cylinder cavity with said gas control piston, and said gas control piston is provided with to carry to be tried to gain.
5. the pneumatic pumping of overload according to claim 4; It is characterized in that said Pneumatic valve cylinder portion is provided with spill port, said oil back chamber communicates with spill port; Be provided with the steel ball seat in the said oil back chamber; Said steel ball seat communicates with spill port, and the steel ball seat is provided with the said steel ball poppet valve of path between control oil outlet and the oil back chamber, said carry trying to gain stretch into the steel ball seat and link to each other with said steel ball poppet valve.
6. the pneumatic pumping of overload according to claim 3; It is characterized in that; Said Pneumatic valve cylinder includes a Pneumatic valve cylinder cavity, the return spring that is provided with the gas control piston and matches in the said Pneumatic valve cylinder cavity with said gas control piston, and said gas control piston is provided with to carry to be tried to gain.
7. the pneumatic pumping of overload according to claim 6; It is characterized in that said Pneumatic valve cylinder portion is provided with spill port, said oil back chamber communicates with spill port; Be provided with the steel ball seat in the said oil back chamber; Said steel ball seat communicates with spill port, and the steel ball seat is provided with the said steel ball poppet valve of path between control oil outlet and the oil back chamber, said carry trying to gain stretch into the steel ball seat and link to each other with said steel ball poppet valve.
8. the pneumatic pumping of overload according to claim 1 is characterized in that, said solenoid directional control valve is two five-way valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203272917U CN202215450U (en) | 2011-09-02 | 2011-09-02 | Overload pneumatic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203272917U CN202215450U (en) | 2011-09-02 | 2011-09-02 | Overload pneumatic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202215450U true CN202215450U (en) | 2012-05-09 |
Family
ID=46014708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203272917U Expired - Lifetime CN202215450U (en) | 2011-09-02 | 2011-09-02 | Overload pneumatic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202215450U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286188A (en) * | 2016-11-10 | 2017-01-04 | 马鞍山市润玛机械制造有限公司 | Air driven pump |
| CN109139581A (en) * | 2018-09-19 | 2019-01-04 | 东莞美商博瑞智能科技有限公司 | A kind of gas source hydraulic press |
| CN109441910A (en) * | 2018-12-04 | 2019-03-08 | 嵊州市元昊机械有限公司 | Air-compression type overloading protector |
-
2011
- 2011-09-02 CN CN2011203272917U patent/CN202215450U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286188A (en) * | 2016-11-10 | 2017-01-04 | 马鞍山市润玛机械制造有限公司 | Air driven pump |
| CN109139581A (en) * | 2018-09-19 | 2019-01-04 | 东莞美商博瑞智能科技有限公司 | A kind of gas source hydraulic press |
| CN109441910A (en) * | 2018-12-04 | 2019-03-08 | 嵊州市元昊机械有限公司 | Air-compression type overloading protector |
| CN109441910B (en) * | 2018-12-04 | 2023-12-19 | 嵊州市元昊机械有限公司 | Air-pressure overload protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120509 |
|
| CX01 | Expiry of patent term |