CN112196844B - High-pressure high-purity energy accumulator for hydraulic system - Google Patents
High-pressure high-purity energy accumulator for hydraulic system Download PDFInfo
- Publication number
- CN112196844B CN112196844B CN202011035048.8A CN202011035048A CN112196844B CN 112196844 B CN112196844 B CN 112196844B CN 202011035048 A CN202011035048 A CN 202011035048A CN 112196844 B CN112196844 B CN 112196844B
- Authority
- CN
- China
- Prior art keywords
- liquid storage
- pressure
- cavity
- oil inlet
- 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.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
- F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
- F15B1/24—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with rigid separating means, e.g. pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
The invention discloses a high-pressure high-purity energy accumulator for a hydraulic system, which comprises a liquid storage cylinder, a pressure cylinder and an intermediate connecting block, wherein the liquid storage cylinder and the pressure cylinder are installed together through the intermediate connecting block; when the energy accumulator is filled with oil, residual hydraulic oil in the pipeline and impurities in the hydraulic oil enter the buffer cavity of the energy accumulator through the oil inlet channel I, the purity of the hydraulic oil in the energy accumulator is improved, the sectional area of the piston of the liquid storage cavity is smaller than that of the piston of the pressure cavity, and the pressure of the hydraulic oil output in the liquid storage cavity of the energy accumulator is increased.
Description
Technical Field
The invention relates to an energy accumulator, in particular to a high-pressure high-purity energy accumulator for a hydraulic system.
Background
The energy accumulator is a main auxiliary element in the hydraulic system, can change the energy in the system into the compression energy to store, and change the compression energy into the hydraulic energy and release in suitable time, for the use of the system, when the internal gas pressure of the energy accumulator is smaller than its external oil liquid pressure, the energy accumulator is in the oil storage state, when the internal gas pressure of the energy accumulator is greater than its external oil liquid pressure, the energy accumulator releases the energy to the system, in some high-power hydraulic systems, the piston movement speed of the hydraulic cylinder is very fast, cause the necessary flowrate to be very big, the hydraulic pump output flowrate is generally difficult to reach the requirement, can adopt the energy accumulator as the main flowrate source; in addition, when the instantaneous pressure of the system is increased, the hydraulic impact can be alleviated, and the pressure pulsation can be absorbed, so that the normal pressure of the whole system is ensured, the energy loss is avoided by adopting the system for supplying oil by the energy accumulator, and the utilization efficiency of the energy is improved; however, the requirements for hydraulic oil in part of hydraulic systems are high, and the requirements for the pressure of the hydraulic oil are high, and the purity of the hydraulic oil is also high, so that impurities in the hydraulic oil are prevented from being mixed.
Disclosure of Invention
The invention provides a high-pressure high-purity energy accumulator for a hydraulic system, which aims to overcome the technical problem that impurities are mixed into hydraulic oil to enter the energy accumulator in the prior art, so that the high-purity high-pressure hydraulic oil in the energy accumulator is ensured.
In order to solve the technical problem, the application provides a high-pressure high-purity energy accumulator for a hydraulic system, which comprises a liquid storage cylinder, a pressure cylinder and an intermediate connecting block, wherein the liquid storage cylinder and the pressure cylinder are installed together through the intermediate connecting block, a liquid storage cavity piston is arranged in the liquid storage cylinder, a pressure cavity piston is arranged in the pressure cylinder, a piston rod is arranged on the liquid storage cavity piston and penetrates through the intermediate connecting block, the other end of the piston rod is fixedly connected with the pressure cavity piston, an orifice hole is formed in the intermediate connecting block, a rod cavity of the liquid storage cylinder, the orifice hole and the rod cavity of the pressure cylinder jointly form a buffer cavity of the energy accumulator, a rodless cavity of the liquid storage cylinder is a liquid storage cavity of the energy accumulator, a rodless cavity of the pressure cylinder is a pressure cavity of the energy accumulator, an oil inlet channel is arranged on a cylinder body of the liquid storage cylinder and comprises a first oil inlet channel and a second oil inlet channel which are mutually communicated, and the first oil inlet channel and the second oil inlet channel are both connected with the liquid storage cylinder, the distance between the oil inlet of the oil inlet channel I and the oil inlet of the oil inlet channel II in the axial direction of the liquid storage cylinder body is slightly larger than the thickness of the liquid storage cavity piston.
Furthermore, throttlers are arranged at two ends of the throttling hole.
Furthermore, a one-way valve is arranged on the oil inlet channel.
Furthermore, the liquid storage cavity and the pressure cavity of the energy accumulator are both provided with stop valves.
Furthermore, a sealing ring is arranged in a rod cavity of the pressure cylinder, the sealing ring is in sealing contact with the piston rod and the pressure cylinder body, sealing rings are arranged between the sealing ring and the piston rod as well as between the sealing ring and the pressure cylinder body, and a bulge which is abutted against the middle connecting block is further arranged on the left end face of the sealing ring.
The invention has the beneficial effects that: according to the invention, the oil inlet channel I and the oil inlet channel II which are mutually communicated are arranged on the cylinder body of the liquid storage cylinder, when the energy accumulator starts to fill oil, residual hydraulic oil in a pipeline and impurities in the hydraulic oil enter the buffer cavity of the energy accumulator through the oil inlet channel I, so that the purity of the hydraulic oil in the energy accumulator is improved, the sectional area of the piston of the liquid storage cavity is smaller than that of the piston of the pressure cavity, and the pressure of the hydraulic oil output from the liquid storage cavity of the energy accumulator is increased.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a state diagram of the accumulator charge start of the present invention;
FIG. 2 is a state diagram of the accumulator charge transition phase of the present invention;
FIG. 3 is a state diagram of the accumulator of the present invention during the normal charge phase;
the reference numerals in the figures denote:
1. a liquid storage cylinder; 2. a pressure cylinder; 3. a middle connecting block; 4. a reservoir piston; 5. a piston rod; 6. a pressure chamber piston; 7. an orifice; 8. a buffer chamber; 9. a liquid storage cavity; 10. a pressure chamber; 11. a first oil inlet channel; 12. an oil inlet channel II; 13. a restrictor; 14. a one-way valve; 15. a stop valve; 16. a seal ring; 17. a first sealing ring; 18. a protrusion; 19. and a second sealing ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the invention. In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.
As shown in fig. 1-3, a high-pressure high-purity energy accumulator for a hydraulic system comprises a liquid storage cylinder 1, a pressure cylinder 2 and an intermediate connecting block 3, wherein the liquid storage cylinder 1 and the pressure cylinder 2 are installed together through the intermediate connecting block 3, a liquid storage cavity piston 4 is arranged in the liquid storage cylinder 1, a pressure cavity piston 6 is arranged in the pressure cylinder 2, a piston rod 5 is arranged on the liquid storage cavity piston 4, the piston rod 5 penetrates through the intermediate connecting block 3, the other end of the piston rod 5 is fixedly connected with the pressure cavity piston 6, a throttle hole 7 is arranged on the intermediate connecting block 3, a rod cavity, a throttle hole and a rod cavity of the liquid storage cylinder jointly form a buffer cavity 8 of the energy accumulator, a rodless cavity of the liquid storage cylinder is a liquid storage cavity 9 of the energy accumulator, a rodless cavity of the pressure cylinder is a pressure cavity 10 of the energy accumulator, a cylinder body of the liquid storage cylinder 1 is provided with an oil inlet channel, the oil inlet channel comprises a first oil inlet channel 11 and a second oil inlet channel 12 which are mutually communicated, the first oil inlet channel 11 and the second oil inlet channel 12 are both connected with the liquid storage cylinder 1, and the distance between the oil inlet of the first oil inlet channel 11 and the oil inlet of the second oil inlet channel 12 in the axial direction of the cylinder body of the liquid storage cylinder is slightly larger than the thickness of the piston of the liquid storage cavity.
The two ends of the throttling hole 7 are provided with throttlers 13, the oil inlet channel is provided with a one-way valve 14, the liquid storage cavity 9 and the pressure cavity 10 of the energy accumulator are both provided with stop valves 15, and a sealing ring II 19 is arranged between the liquid storage cavity piston 4 and the liquid storage cylinder body.
The diameter of the liquid storage cylinder 1 is smaller than that of the pressure cylinder 2, and the sectional area of the liquid storage cavity piston 4 is smaller than that of the pressure cavity piston 6, so that the pressure of output hydraulic oil in the liquid storage cavity 9 of the energy accumulator is increased.
The utility model discloses a hydraulic pressure jar, including pressure cylinder 2, the pole intracavity of having of pressure cylinder 2 is provided with sealing ring 16, sealing ring 16 and piston rod 5 and pressure cylinder body sealing contact, all be provided with sealing washer 17 between sealing ring 16 and piston rod 5 and the pressure cylinder body, sealing ring 16 left end face still is equipped with the arch 18 with intermediate junction piece looks butt, make things convenient for hydraulic oil to get into pressure cylinder 2 have the pole chamber in, sealing ring 16 has realized the sealed between hydraulic oil and pressure chamber 10 in the cushion chamber 8, it has the left liquid volume of pole intracavity sealing ring 16 to equal also to have liquid volume of liquid storage cylinder 1 to have the pole intracavity with pressure cylinder 2 simultaneously.
In the process of filling oil into the energy accumulator, a hydraulic pipeline and a hydraulic valve which are connected with the oil inlet channel contain impurities or other liquid to pollute hydraulic oil and influence the purity of the hydraulic oil, when the oil is filled into the energy accumulator, a pressure cavity piston blocks the oil inlet channel II, residual hydraulic oil in the pipeline and impurities in the hydraulic oil enter a buffer cavity of the energy accumulator through the oil inlet channel I, the hydraulic oil in the buffer cavity slowly flows into a rod cavity of the pressure cylinder from the rod cavity of the liquid storage cylinder through a throttling hole and a restrictor to play a role of buffering and throttling, the overlarge pressure of the hydraulic oil is prevented, and the piston rod of the liquid storage cavity rapidly move to damage the liquid storage cylinder and the pressure cylinder; when the piston of the liquid storage cavity moves rightwards to block the oil inlet channel I, the supplemented hydraulic oil only enters the liquid storage cavity of the energy accumulator through the oil inlet channel II, so that the piston of the liquid storage cavity is pushed to further move rightwards until the piston of the liquid storage cavity moves to open the oil inlet channel I, and the supplemented hydraulic oil enters the liquid storage cavity of the energy accumulator through the oil inlet channel I and the oil inlet channel II until the liquid storage cavity of the energy accumulator is filled with the hydraulic oil; when the hydraulic oil in the liquid storage cavity of the energy accumulator needs to be used, the pressure cavity of the energy accumulator is connected with the pressure pump, and the hydraulic oil stored in the liquid storage cavity can be pressurized and pressed out.
The foregoing description has disclosed fully preferred embodiments of the present invention. It should be noted that those skilled in the art can make modifications to the embodiments of the present invention without departing from the scope of the appended claims. Accordingly, the scope of the appended claims is not to be limited to the specific embodiments described above.
Claims (4)
1. A high pressure, high purity accumulator for a hydraulic system, characterized by: the energy accumulator comprises a liquid storage cylinder, a pressure cylinder and an intermediate connecting block, wherein the liquid storage cylinder and the pressure cylinder are installed together through the intermediate connecting block, a liquid storage cavity piston is arranged in the liquid storage cylinder, a pressure cavity piston is arranged in the pressure cylinder, a piston rod is arranged on the liquid storage cavity piston and penetrates through the intermediate connecting block, the other end of the piston rod is fixedly connected with the pressure cavity piston, a throttling hole is formed in the intermediate connecting block, a rod cavity, the throttling hole and a rod cavity of the pressure cylinder form a buffer cavity of the energy accumulator together, a rodless cavity of the liquid storage cylinder is a liquid storage cavity of the energy accumulator, a rodless cavity of the pressure cylinder is a pressure cavity of the energy accumulator, an oil inlet channel is arranged on a cylinder body of the liquid storage cylinder and comprises an oil inlet channel I and an oil inlet channel II which are communicated with each other, the oil inlet channel I and the oil inlet channel II are both connected with the liquid storage cylinder, and the distance between an oil inlet of the oil inlet channel I and the oil inlet of the oil inlet channel II in the axial direction of the liquid storage cylinder body is slightly larger than the thickness of the liquid storage cavity piston, the oil inlet channel is provided with a one-way valve, and the liquid storage cavity and the pressure cavity of the energy accumulator are both provided with stop valves.
2. A high pressure, high purity accumulator for use in a hydraulic system as claimed in claim 1 wherein: and a second sealing ring is arranged between the liquid storage cavity piston and the liquid storage cylinder body.
3. A high pressure, high purity accumulator for use in a hydraulic system as claimed in claim 1 wherein: the diameter of the liquid storage cylinder is smaller than that of the pressure cylinder, and the sectional area of the liquid storage cavity piston is smaller than that of the pressure cavity piston.
4. A high pressure, high purity accumulator for use in a hydraulic system as claimed in claim 1 wherein: a sealing ring is arranged in a rod cavity of the pressure cylinder, the sealing ring is in sealing contact with the piston rod and the pressure cylinder body, a first sealing ring is arranged between the sealing ring and the piston rod as well as between the sealing ring and the pressure cylinder body, and a bulge which is abutted to the intermediate connecting block is further arranged on the left end face of the sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011035048.8A CN112196844B (en) | 2020-09-27 | 2020-09-27 | High-pressure high-purity energy accumulator for hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011035048.8A CN112196844B (en) | 2020-09-27 | 2020-09-27 | High-pressure high-purity energy accumulator for hydraulic system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112196844A CN112196844A (en) | 2021-01-08 |
| CN112196844B true CN112196844B (en) | 2021-11-05 |
Family
ID=74007456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011035048.8A Active CN112196844B (en) | 2020-09-27 | 2020-09-27 | High-pressure high-purity energy accumulator for hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112196844B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10191171D2 (en) * | 2000-03-27 | 2003-04-24 | Tox Pressotechnik Gmbh | Hydraulic pressure intensifier |
| CN101476571B (en) * | 2009-01-24 | 2011-01-05 | 燕山大学 | Parameter self-adapting and regulation leather bag type hydraulic accumulator |
| CN204327607U (en) * | 2014-12-01 | 2015-05-13 | 东北制药集团股份有限公司 | A kind of piston accumulator |
| CN208935063U (en) * | 2018-09-26 | 2019-06-04 | 柳工常州机械有限公司 | A kind of hydraulic cylinder buffer structure |
-
2020
- 2020-09-27 CN CN202011035048.8A patent/CN112196844B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112196844A (en) | 2021-01-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101936312A (en) | High-pressure piston type accumulator | |
| CN110374958A (en) | Accumulator and hydraulic cylinder set composite | |
| CN109185240A (en) | Energy storage type is from pressure release pressurized construction and control method | |
| CN112196844B (en) | High-pressure high-purity energy accumulator for hydraulic system | |
| CN204827828U (en) | Reciprocating type cryogenic liquids booster compressor of hydraulic pressure | |
| CN110630582B (en) | Cylinder energy storage type hydraulic cylinder | |
| CN109630482B (en) | Spring piston type pressure accumulator with one-way valve | |
| CN106194860A (en) | Electromagnetic force auxiliary compensation formula accumulator | |
| CN201671899U (en) | Hydraulic overflow buffer circuit for mechanical arm | |
| CN204327955U (en) | The accumulator of a kind of seal piston apparatus and use sealing piston apparatus | |
| CN110578732A (en) | Energy storage type hydraulic cylinder with built-in welded piston rod | |
| CN210565452U (en) | Energy accumulator and hydraulic cylinder composite device | |
| CN210599612U (en) | Continuous impact pressurization system for double-pump oil supply | |
| CN209294151U (en) | Energy storage type is from pressure release pressurized construction | |
| CN215409473U (en) | Booster-type energy storage and die casting machine | |
| CN210371397U (en) | High-capacity leather bag type constant-pressure energy accumulator | |
| CN216478124U (en) | Novel sealing structure piston type energy accumulator with pressure relief check valve | |
| CN111927667A (en) | High-pressure common rail pump high-pressure leakage test system and application | |
| CN207437338U (en) | A kind of intelligent hydraulic pump | |
| RU225351U1 (en) | Gas-liquid energy storage | |
| CN216044748U (en) | Floating piston buffer oil cylinder | |
| CN210164626U (en) | Pump head structure of plunger pump | |
| CN211474577U (en) | Sequence oil cylinder for oil inlet control | |
| CN201666329U (en) | Gas spring for increasing gas tightness | |
| CN220909920U (en) | Liquid-driven low Wen Zhusai pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20211018 Address after: 075000 industrial cluster area of Zhangjiakou City, Hebei Province (south of National Highway 110) Applicant after: ZHANGJIAKOU GREAT WALL HYDRAULIC CYLINDER Co.,Ltd. Address before: No. a359, 4th floor, GF District, building 3, phase III, e-commerce Park, Wenshui Road, economic development zone, Shushan District, Hefei City, Anhui Province Applicant before: Hefei perly Electromechanical Equipment Co., Ltd |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |