CN221144715U - High-pressure air pump pre-compaction lubricating system - Google Patents
High-pressure air pump pre-compaction lubricating system Download PDFInfo
- Publication number
- CN221144715U CN221144715U CN202322385968.8U CN202322385968U CN221144715U CN 221144715 U CN221144715 U CN 221144715U CN 202322385968 U CN202322385968 U CN 202322385968U CN 221144715 U CN221144715 U CN 221144715U
- Authority
- CN
- China
- Prior art keywords
- pressing
- piston
- air pump
- cavity
- lubrication system
- 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.)
- Active
Links
- 238000005056 compaction Methods 0.000 title claims description 4
- 230000001050 lubricating effect Effects 0.000 title claims description 4
- 239000003921 oil Substances 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 239000010687 lubricating oil Substances 0.000 claims abstract description 26
- 238000005461 lubrication Methods 0.000 claims abstract description 21
- 230000006835 compression Effects 0.000 claims abstract description 20
- 238000007906 compression Methods 0.000 claims abstract description 20
- 238000002347 injection Methods 0.000 claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 8
- 239000011148 porous material Substances 0.000 claims description 6
- 239000007789 gas Substances 0.000 description 22
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Compressor (AREA)
Abstract
The utility model discloses a high-pressure air pump pre-pressing lubrication system, which comprises a pressure cylinder and a pre-pressing oil tank; the pressure cylinder comprises a cylinder body, a piston and a push-pull rod; one end of the cylinder body is provided with an air inlet and an air outlet, and the air inlet and the air outlet are provided with one-way guide pieces; the piston is arranged in the pressure cylinder, and a sealing element and a guide ring are arranged on the contact surface between the piston and the inner wall of the pressure cylinder; the end part of the push-pull rod is connected with a piston; an elastic diaphragm is arranged in the pre-pressing oil tank to divide the internal containing cavity into a lubricating oil cavity and a pre-pressing air cavity; the side surface of the lubricating oil cavity is provided with a one-way oil injection nozzle and a section of oil injection pipeline; the side face of the pre-pressing air cavity is provided with a one-way air charging port. The high-pressure air pump pre-pressing lubrication system provided by the utility model can continuously lubricate the sealing element for a long time in the working state of the high-pressure air pump, reduce the friction loss of the sealing element, ensure the compression energy efficiency of the air pump and improve the working efficiency.
Description
Technical Field
The utility model belongs to the technical field of lubrication, and particularly relates to a high-pressure air pump pre-pressing lubrication system.
Background
The high-pressure air pump is a device capable of compressing air to a high-pressure state, and is generally applied to the fields of scientific research, petroleum and natural gas, aerospace and the like, for example, a high-pressure air tank pump disclosed in China patent application No. 202120368642.2.
In the study of the production of the high-pressure gas tank pump, it was found that:
In order to achieve the purpose of outputting high pressure, the high pressure gas tank pump has high requirements on tightness and non-return performance of air flow, and a compression mechanism of the high pressure gas tank pump adopts a cylinder with a piston, so that essential components are a non-return valve and a piston sealing element. Chinese patent application number 202023055968.4 has disclosed a check valve cartridge and check valve for the high pressure gas tank pump, and is not described in detail herein, so the sealing at the piston is also considered.
The piston seal is reciprocating dynamic seal, and according to the prior art, the sealing effect can be well achieved by using a common sealing mode, but because the sealing element is lubricated by oil in the cylinder, the sealing element and the inner wall of the cylinder can be severely rubbed, the service life of the sealing element is greatly shortened, the leakage of compressed gas is finally caused, and the compression energy efficiency of the high-pressure gas tank pump is reduced. Meanwhile, the sealing of the piston of the cylinder is not easy to replace lubricating oil, and the cylinder is often required to be stopped for lubrication, so that the working efficiency of the high-pressure gas tank pump is reduced.
Therefore, by comprehensive consideration, it is necessary to design a lubrication system suitable for the high-pressure gas tank pump.
Disclosure of utility model
In order to solve the problems in the prior art, the utility model aims to provide a high-pressure air pump pre-pressing lubrication system which can be matched with the high-pressure air tank pump for use, and can realize the effect of continuously lubricating a piston sealing element for a long time under the working state of an air cylinder, so that the compression energy efficiency of the high-pressure air tank pump is further ensured, and the working efficiency is improved.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
The utility model discloses a high-pressure air pump pre-pressing lubrication system which comprises a pressure cylinder and a pre-pressing oil tank. The pressure cylinder comprises a cylinder body, a piston and a push-pull rod. The cylinder body is cylindrical, one end is opened, the other end is closed, the closed end is provided with an air inlet and an air outlet, and the air inlet and the air outlet are provided with one-way guide pieces.
Further, the piston is arranged in the pressure cylinder containing cavity. The contact surface between the piston and the inner wall of the pressure cylinder is provided with a sealing element and a guide ring, the guide ring is an elastic opening ring, the friction coefficient of the guide ring is very low, the guide ring can be attached to the inner wall of the pressure cylinder by means of elasticity, and the gap between the piston and the pressure cylinder body is kept uniform, so that the sealing element can normally play a role.
Further, a circle of annular grooves are formed in the circumferential surface of the piston, and L-shaped pore channels are formed in the surface, close to the opening end of the cylinder body, and are communicated with the annular grooves.
Further, the push-pull rod and the cylinder body are coaxially arranged, and the end part of the push-pull rod is connected with the piston and used for driving the piston to move up and down.
Furthermore, the pre-pressing oil tank is square and is arranged on the piston or can be placed in other places, and the L-shaped pore canal is connected by an oil injection pipeline. The inside of the pre-pressing oil tank is provided with a layer of elastic diaphragm which divides the internal containing cavity into a lubricating oil cavity and a pre-pressing air cavity. The side face of the lubricating oil cavity is provided with a one-way oil injection nozzle and a section of oil injection pipeline which are used for adding lubricating oil and injecting the lubricating oil into the pipeline. The side face of the pre-pressing air cavity is provided with a one-way air charging port which is used for charging a certain amount of air into the pre-pressing air cavity.
The utility model has the beneficial effects that:
The utility model is not only very suitable for the high-pressure gas tank pump in structure, but also can ensure that the gas of the pre-pressing gas cavity can generate pressure on the lubricating oil in the lubricating oil cavity after the pre-pressing gas tank is filled with oil, the lubricating oil is extruded into the gap between the piston and the inner wall of the cylinder body, meanwhile, the annular groove can enable the lubricating oil to rapidly circulate to the whole circumferential contact surface, and the sealing element is arranged, so that the lubricating oil loss is very small, the pre-pressing gas tank can continuously lubricate the sealing element for a long time in the working state, the friction loss of the sealing element is reduced, the compression energy efficiency of the high-pressure gas tank pump is ensured, and the working efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a high-pressure air pump pre-compression lubrication system.
FIG. 2 is a top view of the high pressure air pump pre-compression lubrication system.
Fig. 3 is a cross-sectional view A-A of fig. 2.
FIG. 4 is a side view of the piston, pre-compression oil tank and push-pull rod.
Fig. 5 is a top view of the pre-pressurized fuel tank after being filled with gas.
Fig. 6 is a plan view of the pre-pressurized oil tank after filling with lubricating oil.
100. A pressure cylinder; 110. a cylinder; 111. an air inlet; 112. an air outlet; 120. a piston; 121. an annular groove; l-shaped pore canal; 130. a push-pull rod; 140. a unidirectional flow guide; 150. a first seal; 160. a second seal; 170. a guide ring; 200. a pre-pressing oil tank; 210. an elastic diaphragm; 220. pre-pressing the air cavity; 230. a lubrication oil chamber; 240. one-way grease nipple; 250. a unidirectional inflation inlet; 260. and an oil injection pipeline.
Detailed Description
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Detailed description of the utility modelas shown in fig. 1 to 5, a high pressure air pump pre-compression lubrication system includes a pressure cylinder 100 and a pre-compression oil tank 200. The pressure cylinder 100 includes a cylinder body 110, a piston 120, and a push-pull rod 130. The cylinder 110 is cylindrical, has an opening at one end and a closed end, and has an air inlet 111 and an air outlet 112 at the closed end, and the air inlet 111 and the air outlet 112 are provided with a unidirectional flow guide member 140, as shown in fig. 3, when the piston 120 moves downward, gas is compressed and discharged from the air outlet 112, and when the piston 120 moves upward, due to the increase of the volume of the cavity, the air pressure is reduced, and the gas is sucked into the cavity from the air inlet 111.
Preferably, as shown in fig. 3, the piston 120 is disposed inside a chamber in which the pressure cylinder 200 is disposed. The contact surface between the piston 120 and the inner wall of the pressure cylinder 200 is provided with the first sealing member 150, the second sealing member 160 and the guide ring 170, and usually only one piston sealing member is needed, and the two piston sealing members are provided, one of the two sealing members is used for sealing the lubricating oil between the gap between the piston 120 and the inner wall of the pressure cylinder 200 and the annular groove 121, so that the lubricating oil is prevented from leaking, the other sealing member is also used for enhancing the sealing performance of the pressure cylinder, preventing gas from leaking, and further guaranteeing the compression energy efficiency of the pressure cylinder. The guide ring 170 is an elastic split ring, and has a low friction coefficient, and can be elastically attached to the inner wall of the pressure cylinder 100, so as to keep the gap between the piston 120 and the cylinder body 110 uniform, and enable the first seal 150 and the second seal 160 to function normally.
Preferably, as shown in fig. 4, a circle of annular grooves 121 is formed on the circumferential surface of the piston 120, and an L-shaped duct 122 is formed on the surface near the open end of the cylinder body, and opens into the annular grooves 121.
Preferably, as shown in fig. 2-4, the push-pull rod 130 is coaxially disposed with the cylinder 110, and has an end connected to the piston 120 for driving the piston 120 to move up and down.
Preferably, as shown in fig. 1, 5 and 6, the pre-compression tank 200 has a square shape and is mounted on the piston 120. The pre-pressing oil tank 200 is internally provided with a layer of elastic diaphragm 210 which divides the internal cavity into a lubricating oil cavity 230 and a pre-pressing air cavity 220. A one-way oil filling nozzle 240 and a length of oil filling pipe 260 for filling and filling the oil into the L-shaped duct 122 are provided on the upper and side surfaces of the oil chamber 230, respectively. A one-way air charging port 250 is provided at a side of the pre-pressing air chamber 220, for charging a gas with a certain pressure into the pre-pressing air chamber 220.
Preferably, the number of the pre-pressing oil tanks 200 should be 1-2, the number of the L-shaped channels 122 should be the same as the number of the pre-pressing oil tanks 200, and the pressure of the pre-pressing air chambers 220 should be 0.12Mpa-0.2Mpa.
The working principle of the utility model is as follows:
After the pre-pressing oil tank 200 is installed, a certain pressure gas is filled into the pre-pressing air cavity 220, the elastic diaphragm 210 is shown in fig. 5, then lubricating oil is injected into the lubricating oil cavity 230, the elastic diaphragm 210 is shown in fig. 6, the gas in the pre-pressing air cavity 220 can generate pressure on the lubricating oil in the lubricating oil cavity 230, so that the lubricating oil flows between the first sealing element 150 and the second sealing element 160 along the L-shaped pore canal 122, and the lubricating oil can circulate to the whole circumferential contact surface along the annular groove 121, so that the lubrication of the first sealing element 150 and the second sealing element 160 is realized, and once the lubricating oil is lost, the pre-pressing force of the gas can continuously supplement the lubricating oil, so that the pressure cylinder can continuously lubricate for a long time under the working state.
While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the utility model, such changes and modifications are also intended to be within the scope of the utility model.
Claims (9)
1. The utility model provides a high-pressure air pump pre-compaction lubricating system, includes pneumatic cylinder (100) and pre-compaction oil tank (200), its characterized in that: the pressure cylinder (100) comprises a cylinder body (110), a piston (120) and a push-pull rod (130); one end of the cylinder body (110) is provided with an air inlet (111) and an air outlet (112), the air inlet (111) and the air outlet (112) are provided with one-way flow guide pieces (140), the piston (120) is arranged inside the pressure cylinder (100), and the end part of the push-pull rod (130) is connected with the piston (120);
an elastic diaphragm (210) is arranged in the pre-pressing oil tank (200) to divide the internal cavity into an lubricating oil cavity (230) and a pre-pressing air cavity (220).
2. A high pressure air pump pre-compression lubrication system according to claim 1, wherein: the contact surface between the piston (120) and the inner wall of the pressure cylinder (100) is provided with a first sealing element (150), a second sealing element (160) and a guide ring (170), the circumferential surface of the piston (120) is provided with a circle of annular groove (121), and the surface close to the opening end of the cylinder body (110) is provided with an L-shaped pore canal (122) which is communicated with the annular groove (121).
3. A high pressure air pump pre-compression lubrication system according to claim 2, wherein: the annular groove (121) is arranged between the first sealing piece (150) and the second sealing piece (160).
4. A high pressure air pump pre-compression lubrication system according to claim 1, wherein: the push-pull rod (130) is coaxially arranged with the cylinder body (110).
5. A high pressure air pump pre-compression lubrication system according to claim 1, wherein: the pre-pressing oil tank (200) is square.
6. A high pressure air pump pre-compression lubrication system according to claim 2 or 5, wherein: the number of the pre-pressing oil tanks (200) is 1-2, and the number of the L-shaped pore channels (122) is the same as that of the pre-pressing oil tanks (200).
7. A high pressure air pump pre-compression lubrication system according to claim 1, wherein: the side surface of the lubricating oil cavity (230) is provided with a one-way oil injection nozzle (240) and a section of oil injection pipeline (260).
8. A high pressure air pump pre-compression lubrication system according to claim 1, wherein: the side surface of the pre-pressing air cavity (220) is provided with a one-way air charging port (250).
9. A high pressure air pump pre-compression lubrication system according to claim 8, wherein: the gas pressure of the pre-pressing air cavity (220) is 0.12Mpa-0.2Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322385968.8U CN221144715U (en) | 2023-09-02 | 2023-09-02 | High-pressure air pump pre-compaction lubricating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322385968.8U CN221144715U (en) | 2023-09-02 | 2023-09-02 | High-pressure air pump pre-compaction lubricating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221144715U true CN221144715U (en) | 2024-06-14 |
Family
ID=91384132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322385968.8U Active CN221144715U (en) | 2023-09-02 | 2023-09-02 | High-pressure air pump pre-compaction lubricating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221144715U (en) |
-
2023
- 2023-09-02 CN CN202322385968.8U patent/CN221144715U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209943030U (en) | Hydraulically-driven two-stage continuous booster-type ultrahigh-pressure hydrogen compressor main engine | |
| CN101424281A (en) | Ultra-high pressure aqueous medium supercharger | |
| CN110185598A (en) | Booster pump built in a kind of automobile-used cryogenic natural gas bottle | |
| CN221144715U (en) | High-pressure air pump pre-compaction lubricating system | |
| CN106884780A (en) | A kind of plunger membrance formula measuring pump | |
| CN205277772U (en) | Plunger diaphragm type measuring pump | |
| CN117072403A (en) | High-pressure air pump pre-compaction lubricating system | |
| CN108412719B (en) | Valve type flow distribution axial convex disc ball plug emulsion pump | |
| CN206206980U (en) | Pneumatic lubrication gasoline pump | |
| CN216554357U (en) | Reciprocating pump high-pressure cylinder structure with good sealing performance | |
| CN216111151U (en) | Motor direct-drive fracturing device | |
| CN204041421U (en) | Plunger pump packing_seal pressure compensator | |
| CN207920986U (en) | A kind of Pneumatic booster pump with unloading function | |
| CN215979773U (en) | Two-way piston water-cooling high-pressure air pump | |
| CN201090928Y (en) | Direct suction energy accumulating type aerodynamic fuel-injection pump | |
| CN112253446B (en) | Quick assembling and disassembling valve group, reciprocating pump hydraulic end and disassembling method | |
| CN208236589U (en) | A kind of convex dribbling plug emulsion pump of valve type fluid-distributing axial | |
| CN216044748U (en) | Floating piston buffer oil cylinder | |
| CN207920785U (en) | A kind of double big small plunger Pneumatic booster pump structures | |
| CN207080442U (en) | A kind of new servomotor device | |
| CN218266287U (en) | Reciprocating booster pump for oil field | |
| CN214403932U (en) | Novel high-pressure water injection pump for oil field | |
| CN220101236U (en) | Automatic energy-charging type wellhead sealer | |
| CN210949014U (en) | Corrosion-resistant high-pressure pump for injecting oil-soluble chemical agent | |
| CN217999853U (en) | Hydraulic sealing and lubricating structure of low-viscosity liquid plunger pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |