CN110345037B - Pneumatic oil pressure pump - Google Patents
Pneumatic oil pressure pump Download PDFInfo
- Publication number
- CN110345037B CN110345037B CN201910469350.5A CN201910469350A CN110345037B CN 110345037 B CN110345037 B CN 110345037B CN 201910469350 A CN201910469350 A CN 201910469350A CN 110345037 B CN110345037 B CN 110345037B
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- CN
- China
- Prior art keywords
- oil
- switching
- piston
- air
- cylinder
- 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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Links
- 239000003921 oil Substances 0.000 claims description 93
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 239000010720 hydraulic oil Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 230000030279 gene silencing Effects 0.000 claims description 5
- 241000227287 Elliottia pyroliflora Species 0.000 claims 1
- 230000036632 reaction speed Effects 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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
- 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
-
- 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
- F04B53/14—Pistons, piston-rods or piston-rod connections
-
- 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
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
-
- 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
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
- F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
- F04B9/123—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber
- F04B9/127—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber rectilinear movement of the pumping member in the working direction being obtained by a single-acting elastic-fluid motor, e.g. actuated in the other direction by gravity or a spring
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Actuator (AREA)
Abstract
The invention discloses a pneumatic oil pressure pump, which comprises a pump body, an actuating assembly, an oil circuit system and an air circuit system, wherein the pump body is provided with a cylinder; the actuating assembly comprises an actuating rod, a main piston and a return spring; the main piston is fixedly sleeved on the actuating rod; the reset spring is connected with the main piston and sleeved outside the actuating rod; the oil circuit system comprises an oil chamber; an oil inlet and an oil outlet are connected to the oil chamber; the oil inlet is provided with a first one-way valve, and the oil outlet is provided with a second one-way valve; the lower end of the actuating rod stretches into the oil chamber; the gas circuit system comprises a piston cavity, a switching shaft cylinder, a gas inlet hole, a switching gas hole and an auxiliary gas outlet hole. The invention has simple and reasonable structure, can smoothly switch the gas paths by switching the shaft cylinder, enables the actuating rod to rapidly reciprocate, has a reaction speed block, can continuously and stably realize oil supply, has stable oil pressure, can play a good role in pressurizing and provides ultrahigh hydraulic pressure.
Description
Technical Field
The invention relates to the field of hydraulic systems, in particular to a pneumatic oil pressure pump.
Background
The hydraulic transmission uses liquid as working medium, and uses the pressure energy of the liquid to transmit power. The hydraulic pressure is widely applied in industry and civil industry due to the characteristics of large transmission power, easy transmission and configuration, and the like. The actuators (hydraulic cylinders and hydraulic motors) of the hydraulic system function to convert the pressure energy of the fluid into mechanical energy, thereby obtaining the desired linear reciprocating or rotary motion. In the action process of an executive component of the hydraulic system, oil supply (oil feeding) and oil return are needed to be carried out on the hydraulic executive component, and the hydraulic executive component is controlled through oil pressure. The function of the energy device (oil pump) of the hydraulic system is to convert the mechanical energy of the prime mover into the pressure energy of the fluid. The existing pneumatic oil pressure pump has the problems of low reaction speed, unstable oil supply and small hydraulic pressure.
Disclosure of Invention
In order to solve the technical problems, the invention provides a pneumatic oil pressure pump, which aims at the defects in the prior art, and realizes high-speed reciprocating motion of an actuating rod by automatically switching an air passage through a switching shaft cylinder, so that oil supply is continuously and stably carried out, and the problems of low reaction speed, unstable oil supply and small hydraulic pressure of the conventional pneumatic oil pressure pump are solved.
In order to achieve the above purpose, the technical scheme of the invention is as follows: a pneumatic oil pressure pump comprises
A pump body;
and an actuating assembly: the actuating assembly comprises an actuating rod, a main piston and a return spring; the main piston is fixedly sleeved on the actuating rod; the return spring is connected with the main piston and sleeved outside the actuating rod;
an oil circuit system; the oil circuit system comprises an oil chamber; an oil inlet and an oil outlet are connected to the oil chamber; the first one-way valve is arranged on the oil inlet and enables hydraulic oil to enter the oil chamber from the oil inlet; the oil outlet is provided with a second one-way valve, and the second one-way valve enables hydraulic oil to flow out from the oil chamber through the oil outlet; the lower end of the actuating rod extends into the oil chamber;
the gas circuit system; the gas circuit system comprises a piston cavity, a switching shaft cylinder, a gas inlet, a switching gas hole and an auxiliary gas outlet; the piston cavity is positioned above the oil chamber; the main piston is arranged in the piston cavity and reciprocates in the vertical direction along the piston cavity; the actuating rod passes through the piston cavity; the upper end of the piston cavity is provided with a plunger cavity along the vertical direction, and the upper end of the actuating rod penetrates out of the piston cavity and stretches into the plunger cavity; an auxiliary air outlet hole communicated with the outside is formed in the top of the plunger cavity; the switching shaft cylinder is arranged on one side of the actuating rod; one end of the switching shaft cylinder is a closed end, and the other end of the switching shaft cylinder is an open end; a cylindrical cylinder sleeve is arranged in the switching shaft cylinder; the cylinder sleeve is of a convex structure, and the diameter of the cylinder sleeve at the closed end of the switching shaft cylinder is larger than that of the cylinder sleeve at the open end of the switching shaft cylinder; a switching movable shaft is arranged in the cylinder sleeve; the switching movable shaft is of an I-shaped piston structure; the switching movable shaft is in sealing contact with the cylinder sleeve; an air inlet communicated with an external air source is arranged on the pump body; an air source air port and a piston air port which are communicated with the inside of the cylinder sleeve are arranged on the switching shaft cylinder; the air source air port and the piston air port are arranged along the length direction of the switching shaft cylinder, and the air source air port is positioned at one side close to the closed end of the switching shaft cylinder; the air source air port is communicated with the air inlet hole; the piston air port is communicated with the upper part of the piston cavity; a switching air hole connected with the air inlet hole is arranged in the pump body; the switching air hole passes through the lower part of the plunger cavity and is communicated with the closed end of the switching shaft cylinder.
As a preferable mode of the present invention, a muffler pipe is mounted on the pump body; the silencing pipe is connected with the open end of the switching shaft cylinder.
As a preferable scheme of the invention, the first one-way valve and the second one-way valve have the same structure and comprise a pushing spring and a conical plug; the pushing spring is connected with the conical plug and pushes and presses the conical plug on the sealing port; the first one-way valve is positioned at the inner side of the oil inlet; the second one-way valve is positioned at the outer side of the oil outlet.
As a preferable scheme of the invention, a guide spring, a guide shaft and a guide copper sleeve are arranged in the switching air hole; the guide shaft is vertically arranged, and the lower end of the guide shaft penetrates into the top end of the piston cavity; the guide copper sleeve is arranged between the switching air hole and the piston cavity; the guide copper sleeve is sleeved outside the guide shaft; the guide copper sleeve is in sealing contact with the guide shaft; the guide spring is arranged at the top of the guide shaft and pushes the guide shaft downwards.
As a preferable mode of the present invention, the diameter of the switching movable shaft on the side of the switching shaft cylinder open end is 1.05-1.40 times the diameter of the switching movable shaft on the side of the switching shaft cylinder closed end.
Through the technical scheme, the beneficial effects of the technical scheme are as follows: the invention has simple and reasonable structure, can smoothly switch the gas path, ensures that the actuating rod moves back and forth quickly, has a reaction speed block, can realize continuous and stable oil supply and stable oil pressure, can play a good role in pressurizing at the same time, provides ultrahigh hydraulic pressure, and has good stability and use effect by adopting a non-electric driving structure and long-time power failure and disconnection.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 and 2 are schematic external structures of the present invention.
Fig. 3 is a schematic top view of the present invention.
Fig. 4 is a schematic cross-sectional view of AA' of fig. 3.
Fig. 5 is a schematic plan sectional structure at AA' of fig. 3.
Fig. 6 is a schematic view of a sectional partial structure at BB' in fig. 3.
FIG. 7 is a schematic view of the external structure of the exposed air intake hole of the present invention.
Corresponding part names are indicated by numerals and letters in the drawings:
1. pump body 2, auxiliary air outlet 3, oil outlet
4. An oil inlet 5, a silencing pipe 6 and an air inlet hole
7. A switching shaft cylinder 8, a first one-way valve 9, a second one-way valve
10. Actuating rod 11, master piston 12, return spring
13. Switching air hole 14, cylinder sleeve 15, switching movable shaft
16. Air source port 17. Piston port.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 7, the present invention provides a pneumatic oil pressure pump as an energy source device of a hydraulic system, comprising a pump body 1, and an actuation assembly, an oil path system and an air path system installed in the pump body 1.
The actuating assembly reciprocates under the action of the air circuit system and converts mechanical energy into pressure energy of liquid through the oil circuit system. Specifically, the actuation assembly includes an actuation rod 10, a master piston 11, and a return spring 12. The main piston 11 is fixedly sleeved on the actuating rod 10; the return spring 12 is connected with the main piston 11 and sleeved outside the actuating rod 10.
The oil circuit system realizes continuous supercharging oil supply under the action of the actuating component. The oil circuit system includes an oil chamber. An oil inlet 4 and an oil outlet 3 are connected to the oil chamber. A first one-way valve 8 is arranged on the oil inlet 4, and the first one-way valve 8 enables hydraulic oil to enter the oil chamber from the oil inlet 4. A second one-way valve 9 is mounted at the oil outlet 3, the second one-way valve 9 allowing hydraulic oil to flow out of the oil chamber through the oil outlet 3. The lower end of the actuating rod 10 extends into the oil chamber. Specifically, the first check valve 8 and the second check valve 9 have the same structure and comprise a pushing spring and a conical plug; the pushing spring is connected with the conical plug to push and press the conical plug on the sealing port; the first one-way valve 8 is positioned at the inner side of the oil inlet 4; the second non-return valve 9 is located outside the oil outlet 3.
The air path system is used for providing a power source of the actuating assembly and is used for mechanically moving the actuating assembly in a high-speed reciprocating manner. The gas circuit system comprises a piston cavity, a switching shaft cylinder, a gas inlet 6, a switching gas hole 13 and an auxiliary gas outlet 2. The piston chamber is located above the oil chamber. The main piston 11 is mounted in the piston chamber for vertical reciprocation along the piston chamber. The actuating rod 10 passes through the piston chamber. A plunger chamber in the vertical direction is provided at the upper end of the piston chamber, and the upper end of the actuating rod 10 extends out of the piston chamber and into the plunger chamber. An auxiliary air outlet hole 2 communicated with the outside is formed in the top of the plunger cavity. A switching shaft cylinder is provided on one side of the actuating lever 10. One end of the switching shaft cylinder is a closed end, and the other end is an open end. A cylindrical cylinder sleeve 14 is arranged in the switching shaft cylinder; the cylinder liner 14 is of a convex structure, and the diameter of the cylinder liner 14 at the closed end of the switching shaft cylinder is larger than the diameter of the cylinder liner at the open end of the switching shaft cylinder. A switching movable shaft 15 is mounted in the cylinder liner 14. The switching movable shaft 15 has an i-shaped piston structure. The switching movable shaft 15 is in sealing contact with the cylinder liner 14. An air inlet 6 communicated with an external air source is arranged on the pump body 1. The switching shaft cylinder is provided with an air source air port 16 and a piston air port 17 which are communicated with the inside of the cylinder sleeve 14. The air source air port 16 and the piston air port 17 are arranged along the length direction of the switching shaft cylinder, and the air source air port 16 is positioned at one side close to the closed end of the switching shaft cylinder. The air source air port 16 is communicated with the air inlet hole 6. The piston port 17 communicates with the upper part of the piston chamber. A switching air hole 13 connected with the air inlet 6 is arranged in the pump body 1. The switching air hole 13 passes through the lower portion of the plunger chamber and communicates with the closed end of the switching shaft cylinder.
In order to reduce the noise of the invention, a silencing pipe 5 is arranged on the pump body 1; the muffler pipe 5 is connected to the open end of the switching cylinder.
In order to limit the air flow of the switching air hole 13 and prevent the abnormal excessive pressure in the piston cavity, the safety is improved, and a guide spring, a guide shaft and a guide copper sleeve are arranged in the switching air hole 13. The guide shaft is vertically arranged, and the lower end of the guide shaft penetrates into the top end of the piston cavity. A guiding copper sleeve is arranged between the switching air hole 13 and the piston cavity. The guide copper sleeve is sleeved outside the guide shaft. The guide copper sleeve is in sealing contact with the guide shaft. The guide spring is arranged at the top of the guide shaft and pushes the guide shaft downwards. The switching air hole 13 is provided with a guide shaft, so that the air flow rate can be reduced. When the pressure in the piston cavity is abnormally large, the air pressure can jack up the guide shaft, emergency pressure relief is performed through the switching air hole 13, and the safety performance is improved.
In order to smoothly and rapidly switch the switching movable shaft 15, the diameter of the switching movable shaft 15 at the side of the opening end of the switching shaft cylinder is 1.05-1.40 times of the diameter of the switching movable shaft 15 at the side of the closing end of the switching shaft cylinder.
The working principle of the invention is as follows: the working process and principle of the oil circuit system are simpler, and the oil circuit system is described first. The actuating rod 10 can perform high-speed reciprocating motion under the action of the air path system. When the actuating rod 10 moves upwards, negative pressure is generated in the oil chamber, the first one-way valve 8 is opened, hydraulic oil can enter the oil chamber from the oil inlet 4, and the oil outlet 3 is in a closed state under the action of the second one-way valve 9; when the actuating rod 10 moves downwards, the pressure of the hydraulic oil in the oil chamber is increased under the action of the actuating rod 10, the second one-way valve 9 is opened, the hydraulic oil in the oil chamber flows out from the oil chamber through the oil outlet 3, and the oil inlet 4 is in a closed state under the action of the first one-way valve 8. Thus, the actuating rod 10 performs high-speed reciprocating motion, so that hydraulic oil can enter from the oil inlet 4, and is delivered from the oil outlet 3 after being pressurized. The working process and principle of the gas circuit system of the invention are as follows: the compressed air enters from the air inlet 6, at the moment, the actuating rod 10 is positioned at the upper starting point, the actuating rod 10 seals the auxiliary air outlet 2, a small part of air flow passes through the plunger cavity from the switching air hole 13 and enters the sealing end of the switching shaft cylinder to push the switching movable shaft 15 towards the opening end of the switching shaft cylinder, and most of air flow enters from the air source air port 16, and after the switching movable shaft 15 moves towards the switching cylinder 7, the air source air port 16 and the piston air port 17 are positioned between the two ends of the switching movable shaft 15, the air source air port 16 is communicated with the piston air port 17, and most of air flow enters the piston cavity from the piston air port 17 to push the main piston 11 downwards to compress the return spring 12, and simultaneously the actuating rod 10 and the main piston 11 synchronously move downwards; step 2, the actuating rod 10 moves to the lower starting point, at this moment, the auxiliary air outlet hole 2 above the actuating rod 10 is opened, the reset spring 12 is compressed strongly, a small part of air flow entering the switching air hole 13 flows out from the auxiliary air outlet hole 2, and compressed air in the piston cavity enters the pushing switching movable shaft 15 from the piston air hole 17, so that the switching movable shaft 15 moves towards the closed end of the switching oil cylinder 7, air in the closed end of the switching oil cylinder 7 is discharged from the switching air hole 13 through the auxiliary air outlet hole 2, and after the switching movable shaft 15 moves, the air source air hole 16 is directly communicated with the open end of the switching oil cylinder 7; and 3, communicating the piston cavity with the open end of the switching cylinder 7, wherein the air pressure in the piston cavity is larger than the external air pressure, and discharging the compressed air in the piston cavity from the air source air port 16 through the open end of the switching cylinder 7 and the silencing pipe 5, and simultaneously moving the actuating rod 10 upwards to an upper starting point under the action of the return spring 12. Step 1, step 2 and step 3 are performed cyclically, and the actuating rod 10 is driven to perform cyclic reciprocating motion.
Through the specific embodiment, the beneficial effects of the invention are as follows: the invention has simple and reasonable structure, can smoothly switch the gas path by switching the shaft cylinder, ensures that the actuating rod 10 rapidly reciprocates, has a reaction speed block, can continuously and stably realize oil supply, has stable oil pressure, can play a good role in pressurizing, provides ultrahigh hydraulic pressure, has no influence on the invention due to long-time power failure and disconnection by adopting a non-electric driving structure, and has good stability and good use effect.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. A pneumatic oil pressure pump, comprising
A pump body;
an actuation assembly; the actuating assembly comprises an actuating rod, a main piston and a return spring; the main piston is fixedly sleeved on the actuating rod; the return spring is connected with the main piston and sleeved outside the actuating rod;
an oil circuit system; the oil circuit system comprises an oil chamber; an oil inlet and an oil outlet are connected to the oil chamber; the first one-way valve is arranged on the oil inlet and enables hydraulic oil to enter the oil chamber from the oil inlet; the oil outlet is provided with a second one-way valve, and the second one-way valve enables hydraulic oil to flow out from the oil chamber through the oil outlet; the lower end of the actuating rod extends into the oil chamber;
the gas circuit system; the gas circuit system comprises a piston cavity, a switching shaft cylinder, a gas inlet, a switching gas hole and an auxiliary gas outlet; the piston cavity is positioned above the oil chamber; the main piston is arranged in the piston cavity and reciprocates in the vertical direction along the piston cavity; the actuating rod passes through the piston cavity; the upper end of the piston cavity is provided with a plunger cavity along the vertical direction, and the upper end of the actuating rod penetrates out of the piston cavity and stretches into the plunger cavity; an auxiliary air outlet hole communicated with the outside is formed in the top of the plunger cavity; the switching shaft cylinder is arranged on one side of the actuating rod; one end of the switching shaft cylinder is a closed end, and the other end of the switching shaft cylinder is an open end; a cylindrical cylinder sleeve is arranged in the switching shaft cylinder; the cylinder sleeve is of a convex structure, and the diameter of the cylinder sleeve at the closed end of the switching shaft cylinder is larger than that of the cylinder sleeve at the open end of the switching shaft cylinder; a switching movable shaft is arranged in the cylinder sleeve; the switching movable shaft is of an I-shaped piston structure; the switching movable shaft is in sealing contact with the cylinder sleeve; an air inlet communicated with an external air source is arranged on the pump body; an air source air port and a piston air port which are communicated with the inside of the cylinder sleeve are arranged on the switching shaft cylinder; the air source air port and the piston air port are arranged along the length direction of the switching shaft cylinder, and the air source air port is positioned at one side close to the closed end of the switching shaft cylinder; the air source air port is communicated with the air inlet hole; the piston air port is communicated with the upper part of the piston cavity; a switching air hole connected with the air inlet hole is arranged in the pump body; the switching air hole passes through the lower part of the plunger cavity and is communicated with the closed end of the switching shaft cylinder.
2. The pneumatic oil pressure pump of claim 1 wherein a muffler is mounted on the pump body; the silencing pipe is connected with the open end of the switching shaft cylinder.
3. The pneumatic oil pressure pump of claim 2 wherein the first check valve and the second check valve are identical in structure, including a jack spring and a conical plug; the pushing spring is connected with the conical plug and pushes and presses the conical plug on the sealing port; the first one-way valve is positioned at the inner side of the oil inlet; the second one-way valve is positioned at the outer side of the oil outlet.
4. A pneumatic oil pump according to claim 3, wherein a guide spring, a guide shaft and a guide copper bush are installed in the switching air hole; the guide shaft is vertically arranged, and the lower end of the guide shaft penetrates into the top end of the piston cavity; the guide copper sleeve is arranged between the switching air hole and the piston cavity; the guide copper sleeve is sleeved outside the guide shaft; the guide copper sleeve is in sealing contact with the guide shaft; the guide spring is arranged at the top of the guide shaft and pushes the guide shaft downwards.
5. A pneumatic oil pump according to claim 3, wherein the diameter of the switching movable shaft on the side of the switching shaft cylinder open end is 1.05-1.40 times the diameter of the switching movable shaft on the side of the switching shaft cylinder closed end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910469350.5A CN110345037B (en) | 2019-05-31 | 2019-05-31 | Pneumatic oil pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910469350.5A CN110345037B (en) | 2019-05-31 | 2019-05-31 | Pneumatic oil pressure pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110345037A CN110345037A (en) | 2019-10-18 |
| CN110345037B true CN110345037B (en) | 2023-12-15 |
Family
ID=68174554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910469350.5A Active CN110345037B (en) | 2019-05-31 | 2019-05-31 | Pneumatic oil pressure pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110345037B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577566B (en) * | 2020-06-15 | 2024-08-13 | 东莞市嘉刚机电科技发展有限公司 | Pneumatic oil pressure pumping and piston reversing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4841846A (en) * | 1986-02-24 | 1989-06-27 | Grambling William D | Pneumatic actuators with liquid seals for oil and gas well swabs |
| TW543716U (en) * | 2002-06-07 | 2003-07-21 | Kuen-Shan Shiu | Pneumatic type hydraulic pump structure |
| CN201696246U (en) * | 2010-06-19 | 2011-01-05 | 汕头市通力机械制造有限公司 | Pneumatic hydraulic pump |
| WO2012062404A1 (en) * | 2010-11-08 | 2012-05-18 | Robert Bosch Gmbh | Hydraulic or pneumatic drive for actuating a fitting comprising a control valve or selector valve |
| CN205578201U (en) * | 2016-03-14 | 2016-09-14 | 匡信机械(昆山)有限公司 | Large -traffic pneumatic pumping |
| CN206429358U (en) * | 2017-02-06 | 2017-08-22 | 宁波天泰美克智能科技有限公司 | A kind of oleo-pneumatic pump |
| CN210769174U (en) * | 2019-05-31 | 2020-06-16 | 山田顺精密机械（苏州）有限公司 | Pneumatic oil pressure pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080118382A1 (en) * | 2006-11-17 | 2008-05-22 | Downhole Water Management, Inc. | Back pressured hydraulic pump for sucker rod |
-
2019
- 2019-05-31 CN CN201910469350.5A patent/CN110345037B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4841846A (en) * | 1986-02-24 | 1989-06-27 | Grambling William D | Pneumatic actuators with liquid seals for oil and gas well swabs |
| TW543716U (en) * | 2002-06-07 | 2003-07-21 | Kuen-Shan Shiu | Pneumatic type hydraulic pump structure |
| CN201696246U (en) * | 2010-06-19 | 2011-01-05 | 汕头市通力机械制造有限公司 | Pneumatic hydraulic pump |
| WO2012062404A1 (en) * | 2010-11-08 | 2012-05-18 | Robert Bosch Gmbh | Hydraulic or pneumatic drive for actuating a fitting comprising a control valve or selector valve |
| CN103370546A (en) * | 2010-11-08 | 2013-10-23 | 罗伯特·博世有限公司 | Hydraulic or pneumatic drive for actuating a fitting comprising a control valve or selector valve |
| CN205578201U (en) * | 2016-03-14 | 2016-09-14 | 匡信机械(昆山)有限公司 | Large -traffic pneumatic pumping |
| CN206429358U (en) * | 2017-02-06 | 2017-08-22 | 宁波天泰美克智能科技有限公司 | A kind of oleo-pneumatic pump |
| CN210769174U (en) * | 2019-05-31 | 2020-06-16 | 山田顺精密机械（苏州）有限公司 | Pneumatic oil pressure pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110345037A (en) | 2019-10-18 |
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