CN210068598U - Piston type energy accumulator for hydraulic pump station - Google Patents
Piston type energy accumulator for hydraulic pump station Download PDFInfo
- Publication number
- CN210068598U CN210068598U CN201920847070.9U CN201920847070U CN210068598U CN 210068598 U CN210068598 U CN 210068598U CN 201920847070 U CN201920847070 U CN 201920847070U CN 210068598 U CN210068598 U CN 210068598U
- Authority
- CN
- China
- Prior art keywords
- piston
- air inlet
- cylinder body
- hydraulic pump
- pump station
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
Landscapes
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
The utility model relates to a hydraulic power unit subassembly, the piston accumulator for the hydraulic power unit who is used for the energy storage is installed in hydraulic power unit specifically to say so. The hydraulic cylinder comprises a cylinder body, wherein end covers are arranged at two ends of the cylinder body, an oil inlet connected with a hydraulic pump station is formed in one end cover, an air inlet is formed in the other end cover, and an air inlet valve is arranged on the air inlet. A piston is arranged in the cylinder body, and the side wall of the piston is matched with the inner wall of the cylinder body in a sliding sealing manner. The piston type air inlet device is characterized in that a compression spring is arranged in the section of the cylinder body between the air inlet and the piston, one end of the compression spring is fixed on the inner end face of the end cover corresponding to the air inlet, and the other end of the compression spring is abutted to the end face of the piston corresponding to the air inlet. When the sealing between the side wall of the piston of the energy accumulator and the inner wall of the cylinder body is in a problem, the influence on the working stability of the hydraulic pump station is small.
Description
Technical Field
The utility model relates to a hydraulic power unit subassembly, the piston accumulator for the hydraulic power unit who is used for the energy storage is installed in hydraulic power unit specifically to say so.
Background
The hydraulic pump station is also called a hydraulic station, and is equipment which utilizes a motor to drive a hydraulic pump to rotate, and the hydraulic pump pumps oil after absorbing oil from an oil tank to convert mechanical energy into hydraulic oil pressure energy. The hydraulic pump stations are all provided with energy accumulators, and the energy accumulators are used for storing redundant pressure and releasing the pressure to supply to the hydraulic pump stations when needed.
At present, an energy accumulator used in a hydraulic pump station comprises a cylinder body, wherein end covers are arranged at two ends of the cylinder body, an oil inlet connected with the hydraulic pump station is arranged on one end cover, an air inlet is arranged on the other end cover, and an air inlet valve is arranged on the air inlet. A piston is arranged in the cylinder body, and the side wall of the piston is matched with the inner wall of the cylinder body in a sliding sealing manner. When the air inlet valve is used, the oil inlet is connected with the hydraulic pump station, the air inlet valve is opened, and the air inlet valve is closed after air is fed into the air inlet. During energy storage, hydraulic oil enters the cylinder body from the oil inlet and pushes the piston to move towards one end of the cylinder body corresponding to the air inlet, so that air is compressed and energy storage is carried out. In the use process of the energy accumulator, the piston rubs with the inner wall of the cylinder body for a long time, so that the sealing between the piston and the cylinder body is caused to be problematic. The energy accumulator utilizes the piston to compress air for energy storage, when the sealing between the piston and the cylinder body is in failure, the compressed air leaks hydraulic oil from the space between the piston and the cylinder body, so that the air cannot be compressed by the hydraulic oil, the energy storage fails, and the working stability of a hydraulic pump station is greatly influenced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a piston energy storage ware for hydraulic power unit, when the sealed problem appearing between the piston lateral wall of this energy storage ware and cylinder inner wall, it is less to hydraulic power unit's job stabilization nature influence.
In order to solve the problems, the following technical scheme is provided:
the utility model discloses a piston energy storage ware for hydraulic power unit includes the cylinder body, and the both ends of this cylinder body all have the end cover, have the oil inlet that links to each other with hydraulic power unit on one of them end cover, have the air inlet on another end cover, have the admission valve on the air inlet. A piston is arranged in the cylinder body, and the side wall of the piston is matched with the inner wall of the cylinder body in a sliding sealing manner. The piston type air inlet device is characterized in that a compression spring is arranged in the section of the cylinder body between the air inlet and the piston, one end of the compression spring is fixed on the inner end face of the end cover corresponding to the air inlet, and the other end of the compression spring is abutted to the end face of the piston corresponding to the air inlet.
And a concave pit is arranged on the end surface of the piston corresponding to the air inlet, and one end of the spring is positioned in the concave pit.
The side wall of the piston is uniformly provided with at least two circumferential grooves along the axial direction, and annular sealing rings are arranged in the grooves.
By adopting the scheme, the method has the following advantages:
because the utility model discloses a there is compression spring in that section cylinder body between hydraulic power unit uses piston accumulator's air inlet and piston, compression spring's one end is fixed on the interior terminal surface of that end cover that the air inlet corresponds, and the piston end face that the other end and air inlet correspond offsets. When the hydraulic pump station is used, after the sealing between the side wall of the piston and the inner wall of the cylinder body is in failure, the spring can still be used for storing energy, so that the energy storage effect is ensured, and the hydraulic pump station can work stably.
Drawings
Fig. 1 is a schematic structural diagram of a piston accumulator for a hydraulic pump station.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in figure 1, the utility model discloses a piston accumulator for hydraulic power unit includes cylinder body 3, and there are end cover 1 at the both ends of this cylinder body 3, has the oil inlet 2 that links to each other with hydraulic power unit on one of them end cover 1, has air inlet 7 on another end cover 1, has admission valve 8 on the air inlet 7. There is piston 4 in the cylinder body 3, has along its axial equipartition on the lateral wall of piston 4 to be no less than two circumferential recesses, all have ring packing 5 in the recess for be sliding seal form cooperation between the lateral wall of piston 4 and the 3 inner walls of cylinder body. A compression spring 6 is arranged in the section of the cylinder body 3 between the air inlet 7 and the piston 4, one end of the compression spring 6 is fixed on the inner end face of the end cover 1 corresponding to the air inlet 7, and the other end of the compression spring is abutted against the end face of the piston 4 corresponding to the air inlet 7. A concave pit 9 is arranged on the end surface of the piston 4 corresponding to the air inlet 7, and one end of the spring is positioned in the concave pit 9.
When the air inlet valve is used, the oil inlet 2 is connected with the hydraulic pump station, the air inlet valve 8 is opened, and the air inlet valve 8 is closed after air is sent into the air inlet 7. During energy storage, hydraulic oil enters the cylinder body 3 from the oil inlet 2 and pushes the piston 4 to move towards one end of the cylinder body 3 corresponding to the air inlet 7, so that air and the spring are compressed to store energy. When the sealing between the side wall of the piston 4 and the inner wall of the cylinder body 3 is in a problem, the spring rebounds to push the piston 4, and stored pressure oil is sent into the hydraulic pump station, so that the hydraulic pump station can work stably.
Claims (3)
1. The piston type energy accumulator for the hydraulic pump station comprises a cylinder body (3), wherein end covers (1) are arranged at two ends of the cylinder body (3), an oil inlet (2) connected with the hydraulic pump station is formed in one end cover (1), an air inlet (7) is formed in the other end cover (1), and an air inlet valve (8) is formed in the air inlet (7); a piston (4) is arranged in the cylinder body (3), and the side wall of the piston (4) is matched with the inner wall of the cylinder body (3) in a sliding sealing manner; the piston type air compressor is characterized in that a compression spring (6) is arranged in the section of the cylinder body (3) between the air inlet (7) and the piston (4), one end of the compression spring (6) is fixed on the inner end face of the end cover (1) corresponding to the air inlet (7), and the other end of the compression spring is abutted against the end face of the piston (4) corresponding to the air inlet (7).
2. The piston accumulator for the hydraulic pump station according to claim 1, characterized in that the end face of the piston (4) corresponding to the air inlet (7) is provided with a concave pit (9), and one end of the spring is positioned in the concave pit (9).
3. The piston type energy accumulator for the hydraulic pump station according to claim 1 or 2, characterized in that the side wall of the piston (4) is uniformly provided with at least two circumferential grooves along the axial direction, and the grooves are internally provided with annular sealing rings (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920847070.9U CN210068598U (en) | 2019-06-13 | 2019-06-13 | Piston type energy accumulator for hydraulic pump station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920847070.9U CN210068598U (en) | 2019-06-13 | 2019-06-13 | Piston type energy accumulator for hydraulic pump station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210068598U true CN210068598U (en) | 2020-02-14 |
Family
ID=69456609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920847070.9U Expired - Fee Related CN210068598U (en) | 2019-06-13 | 2019-06-13 | Piston type energy accumulator for hydraulic pump station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210068598U (en) |
-
2019
- 2019-06-13 CN CN201920847070.9U patent/CN210068598U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4938757B2 (en) | Sleeve type accumulator with built-in light weight and low permeability piston | |
| US7661442B2 (en) | Compact hydraulic accumulator | |
| US8020587B2 (en) | Piston-in sleeve hydraulic pressure accumulator | |
| CN209943030U (en) | Hydraulically-driven two-stage continuous booster-type ultrahigh-pressure hydrogen compressor main engine | |
| DK0901595T3 (en) | accumulator | |
| KR102405267B1 (en) | Fluid compression device | |
| CN210068598U (en) | Piston type energy accumulator for hydraulic pump station | |
| CN201170162Y (en) | Remaining gap valve regulation apparatus | |
| CN105545715A (en) | Marsh gas compressor good in leakproofness | |
| CN109630482B (en) | Spring piston type pressure accumulator with one-way valve | |
| US20020129859A1 (en) | Crimped piston/membrane accumulator | |
| CN201705922U (en) | Metal spring embedded seal box | |
| CN110578732A (en) | Energy storage type hydraulic cylinder with built-in welded piston rod | |
| CN105587708A (en) | Static sealing oil cylinder with rodless cavity | |
| CN101531331A (en) | Novel hydraulic lifting jack | |
| CN112065806B (en) | Hydraulic cylinder unloading structure | |
| CN111911467A (en) | High-pressure metal bellows type energy accumulator | |
| CN111120771A (en) | Plugging robot in pipeline | |
| CN217002441U (en) | Automatic air supplement system of energy accumulator | |
| CN210371395U (en) | Bellows type energy accumulator | |
| CN106704272B (en) | Metal rubber composite spring isolation type energy accumulator | |
| CN211852356U (en) | Loading oil cylinder | |
| CN219639155U (en) | Bellows type energy accumulator | |
| CN221144881U (en) | Hydraulic pumping unit oil cylinder sealing device | |
| CN106762951A (en) | A kind of compressed air backhaul single-action hydraulic cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200214 Termination date: 20210613 |