CN108757598B - Pressurizing cylinder - Google Patents
Pressurizing cylinder Download PDFInfo
- Publication number
- CN108757598B CN108757598B CN201810709969.4A CN201810709969A CN108757598B CN 108757598 B CN108757598 B CN 108757598B CN 201810709969 A CN201810709969 A CN 201810709969A CN 108757598 B CN108757598 B CN 108757598B
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- China
- Prior art keywords
- pressure cavity
- low
- pressure
- main
- 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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- 239000007788 liquid Substances 0.000 claims abstract description 14
- 230000007704 transition Effects 0.000 claims description 8
- 239000010720 hydraulic oil Substances 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000004904 shortening Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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
- F15B3/00—Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
-
- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1409—Characterised by the construction of the motor unit of the straight-cylinder type with two or more independently movable working 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1428—Cylinders
-
- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
-
- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/17—Characterised by the construction of the motor unit of the straight-cylinder type of differential-piston type
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention belongs to the technical field of hydraulic presses, and discloses a booster cylinder which comprises a main cylinder bottom and a booster piston rod. The main cylinder bottom is internally provided with a low-pressure cavity and a high-pressure cavity which are mutually communicated, the pipe diameter of the low-pressure cavity is larger than that of the high-pressure cavity, one end of the low-pressure cavity is provided with a low-pressure liquid inlet, and the high-pressure cavity is communicated with the main pressure cavity of the main cylinder. The supercharging piston rod comprises a piston part and a slide rod part which are connected with each other, the piston part is circumferentially attached to the low-pressure cavity and can slide in the low-pressure cavity, and the slide rod part is circumferentially attached to the high-pressure cavity and can slide in the high-pressure cavity. According to the invention, the low-pressure cavity and the high-pressure cavity are arranged in the main cylinder bottom of the main cylinder, and the pressurizing piston rod is arranged in cooperation with the low-pressure cavity and the high-pressure cavity, so that the pressurizing cylinder is integrated on the main cylinder, a high-pressure pipeline between the pressurizing cylinder and the main cylinder is omitted, the problem of failure in connection of the high-pressure pipeline is effectively avoided, and meanwhile, compared with the arrangement of an independent pressurizing cylinder, the use amount of hydraulic oil is effectively reduced, thereby shortening the pressurizing time and improving the production efficiency.
Description
Technical Field
The invention relates to the technical field of hydraulic presses, in particular to a pressurizing cylinder.
Background
In the prior large-scale ultrahigh pressure hydraulic press, the highest working oil pressure of a main cylinder can reach 300MPa, and in order to reach the pressure value, the prior art mostly adopts an external pressurizing method, and adopts an independent pressurizing cylinder to be communicated with the main cylinder through a high-pressure pipeline so as to realize the ultrahigh pressure working pressure of a main cylinder. According to the external pressurizing method provided with the independent pressurizing cylinder, the problem of failure of connection of the high-pressure pipeline exists due to the connection of the high-pressure pipeline, and meanwhile, the usage amount of hydraulic oil is increased due to the existence of the main cylinder, the pressurizing cylinder and the connecting pipeline, so that pressurizing time is prolonged, production efficiency is reduced, and production cost is increased.
Disclosure of Invention
The invention aims to provide a pressurizing cylinder, which can omit a high-pressure pipeline between the pressurizing cylinder and a main cylinder, reduce the use amount of hydraulic oil and safely and efficiently pressurize the main cylinder.
To achieve the purpose, the invention adopts the following technical scheme:
A boost cylinder, comprising:
the main cylinder bottom is internally provided with a low-pressure cavity and a high-pressure cavity which are mutually communicated, the pipe diameter of the low-pressure cavity is larger than that of the high-pressure cavity, one end of the low-pressure cavity is provided with a low-pressure liquid inlet, and the high-pressure cavity is communicated with the main pressure cavity of the main cylinder
The supercharging piston rod comprises a piston part and a sliding rod part which are connected with each other, the piston part is circumferentially attached to the low-pressure cavity and can slide in the low-pressure cavity, and the sliding rod part is circumferentially attached to the high-pressure cavity and can slide in the high-pressure cavity.
Preferably, a pressurizing return passage is further arranged in the master cylinder bottom, one end of the pressurizing return passage is communicated with the low-pressure cavity, and the other end of the pressurizing return passage is communicated with the outside of the master cylinder bottom.
Preferably, one end of the pressurizing return channel is communicated with one end of the low-pressure cavity, which is close to the high-pressure cavity, a transition part is arranged between the piston part and the slide rod part, and the pipe diameter of the transition part is smaller than that of the piston part and larger than that of the slide rod part.
Preferably, one end of the low-pressure cavity is provided with a pressurizing cylinder bottom, and the low-pressure liquid inlet is arranged on the pressurizing cylinder bottom.
Preferably, one end of the high-pressure cavity is provided with a charging valve.
Preferably, the low pressure chamber and the high pressure chamber are coaxially arranged, and the pressurizing cylinder bottom and the filling valve are positioned at two opposite sides of the main cylinder bottom.
Preferably, the hydraulic cylinder further comprises a main cylinder body, the main pressure cavity is arranged in the main cylinder body, the main cylinder bottom is arranged at one end of the main cylinder body, a communication port is arranged on the main cylinder bottom, and the high pressure cavity is communicated with the main pressure cavity through the communication port.
Preferably, the cylinder head further comprises a main cylinder head, and the main cylinder head is arranged at the other end of the main cylinder body.
Preferably, a main pressure piston rod is slidably arranged in the main cylinder body.
Preferably, the axis of the high-pressure chamber is perpendicular to the axis of the main pressure chamber.
The invention has the beneficial effects that: through set up low pressure chamber and high pressure chamber in the master cylinder bottom of master cylinder to cooperation low pressure chamber and high pressure chamber set up the pressure boost piston rod, with the pressure boost jar integration on the master cylinder, omitted the high pressure pipeline between pressure boost jar and the master cylinder, effectively avoided the problem of high pressure pipeline connection inefficacy, compare in the setting of independent pressure boost jar simultaneously, effectively reduced the use amount of hydraulic oil, thereby shortened the boost time, improved production efficiency, reduced manufacturing cost.
Drawings
FIG. 1 is a front view of a boost cylinder according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;
fig. 3 is a B-B cross-sectional view of fig. 1.
In the figure:
1. A main cylinder bottom;
2. A pressurized piston rod; 21. a piston section; 22. a slide bar portion; 23. a transition section;
3. A booster cylinder bottom;
4. A charging valve;
5. A main cylinder;
6. A main cylinder cover;
7. A main pressure piston rod;
100. A low pressure chamber; 200. a high pressure chamber; 300. a low pressure liquid inlet; 400. a main pressure chamber; 500. a pressurized return path; 600. and a communication port.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
As shown in fig. 1-3, the present invention provides a booster cylinder comprising a main cylinder bottom 1 and a booster piston rod 2. Wherein, the master cylinder bottom 1 is provided with a low pressure chamber 100 and a high pressure chamber 200 which are mutually communicated, the pipe diameter of the low pressure chamber 100 is larger than that of the high pressure chamber 200, one end of the low pressure chamber 100 is provided with a low pressure liquid inlet 300, and the high pressure chamber 200 is communicated with a main pressure chamber 400 of the master cylinder. The booster piston rod 2 includes a piston portion 21 and a slide rod portion 22 that are connected to each other, the piston portion 21 is circumferentially attached to the low pressure chamber 100 and is capable of sliding in the low pressure chamber 100, and the slide rod portion 22 is circumferentially attached to the high pressure chamber 200 and is capable of sliding in the high pressure chamber 200.
According to the invention, the low-pressure cavity 100 and the high-pressure cavity 200 are arranged in the main cylinder bottom 1 of the main cylinder, and the pressurizing piston rod 2 is arranged in cooperation with the low-pressure cavity 100 and the high-pressure cavity 200, so that the pressurizing cylinder is integrated on the main cylinder, a high-pressure pipeline between the pressurizing cylinder and the main cylinder is omitted, the problem of failure of connection of the high-pressure pipeline is effectively avoided, and meanwhile, compared with the arrangement of an independent pressurizing cylinder, the consumption of hydraulic oil is effectively reduced, thereby shortening the pressurizing time, improving the production efficiency and reducing the production cost.
In this embodiment, a booster return passage 500 is further provided in the master cylinder base 1, and one end of the booster return passage 500 is connected to the low pressure chamber 100, and the other end is connected to the outside of the master cylinder base 1. Specifically, one end of the pressurizing return path 500 is connected to one end of the low pressure chamber 100, which is close to the high pressure chamber 200, and a transition portion 23 is disposed between the piston portion 21 and the slide bar portion 22, where the pipe diameter of the transition portion 23 is smaller than that of the piston portion 21 and larger than that of the slide bar portion 22. By the arrangement, when the supercharging piston rod 2 needs to return after the supercharging is finished, a certain gap exists between the piston part 21 of the supercharging piston rod 2 and the transition steps of the low-pressure cavity 100 and the high-pressure cavity 200, and an operator can apply pressure from the return side of the piston part 21 by injecting hydraulic oil, so that the supercharging piston rod 2 returns quickly.
Specifically, a booster cylinder bottom 3 is disposed at one end of the low pressure chamber 100, a low pressure liquid inlet 300 is disposed on the booster cylinder bottom 3, external hydraulic oil can enter the low pressure chamber 100 through the low pressure liquid inlet 300 of the booster cylinder bottom 3, and pressure is applied from one side of the piston portion 21 to push the booster piston rod 2 to slide toward one side of the high pressure chamber 200. One end of the high pressure chamber 200 is provided with a filling valve 4, and external hydraulic oil is sequentially filled into the main pressure chamber 400 through the filling valve 4 and the high pressure chamber 200.
More specifically, the low pressure chamber 100 and the high pressure chamber 200 are coaxially arranged, the pressurizing cylinder bottom 3 and the filling valve 4 are positioned at two opposite sides of the main cylinder bottom 1, and the openings at two sides of the through cavity formed by the low pressure chamber 100 and the high pressure chamber 200 are communicated with the main cylinder bottom 1 through high-strength screws to seal the through cavity.
The cylinder according to the invention further comprises a main block 5 and a main head 6. Wherein, the main pressure chamber 400 is arranged in the main cylinder body 5, the main cylinder bottom 1 is arranged at one end of the main cylinder body 5, the main cylinder cover 6 is arranged at the other end of the main cylinder body 5, and the main cylinder bottom 1 and the main cylinder cover 6 are connected with the main cylinder body 5 from the openings at two ends of the main pressure chamber 400 through high-strength screws to seal the main pressure chamber 400. The main cylinder bottom 1 is provided with a communication port 600, and the high-pressure chamber 200 communicates with the main pressure chamber 400 through the communication port 600.
Specifically, a main pressure piston rod 7 is slidably disposed in the main cylinder 5, and the sliding direction of the main pressure piston rod 7 is perpendicular to the sliding direction of the pressurizing piston rod 2. The arrangement fully utilizes the transverse dimension of the main cylinder bottom 1, and avoids the increase of the vertical dimension of the main cylinder bottom 1 for adapting to the arrangement of the pressurizing piston rod 2.
More specifically, the axis of the high-pressure chamber 200 is perpendicular to the axis of the main pressure chamber 400, and the axis of the communication port 600 is disposed at an angle to the axis of the main pressure chamber 400 and is inclined toward the filling valve 4. The above arrangement makes it easier for hydraulic oil introduced through the charging valve 4 to be introduced into the main pressure chamber 400.
The pressurizing cylinder of the invention works specifically: the main pressure piston rod 7 is quickly moved down by filling liquid into the high pressure cavity 200 and the main pressure cavity 400 through the liquid filling valve 4, the main cylinder enters a pressing state after the liquid filling is completed, at the moment, the low pressure liquid inlet 300 is used for filling liquid into the low pressure cavity 100, the pressurizing piston rod 2 is pushed to continuously press hydraulic oil into the main pressure cavity 400, the pressure of the hydraulic oil in the main pressure cavity 400 is quickly increased to ultrahigh pressure (in the embodiment, the pressure is increased to 300 MPa) from low pressure, the ultrahigh pressure pressing state of the main cylinder is realized, and after the main cylinder is completely pressed, the main cylinder is filled with liquid to the return side of the piston part 21 of the pressurizing piston rod 2 through the pressurizing return channel 500, so that the quick return of the pressurizing piston rod 2 is realized.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (7)
1. A booster cylinder, comprising:
The main cylinder comprises a main cylinder bottom (1), wherein a low-pressure cavity (100) and a high-pressure cavity (200) which are mutually communicated are arranged in the main cylinder bottom (1), the pipe diameter of the low-pressure cavity (100) is larger than that of the high-pressure cavity (200), one end of the low-pressure cavity (100) is provided with a low-pressure liquid inlet (300), and the high-pressure cavity (200) is communicated with a main pressure cavity (400) of the main cylinder;
A pressurizing piston rod (2) comprising a piston part (21) and a slide rod part (22) which are connected with each other, wherein the piston part (21) is circumferentially attached to the low-pressure cavity (100) and can slide in the low-pressure cavity (100), and the slide rod part (22) is circumferentially attached to the high-pressure cavity (200) and can slide in the high-pressure cavity (200);
The main cylinder body (5), the main pressure cavity (400) is arranged in the main cylinder body (5), the main cylinder bottom (1) is arranged at one end of the main cylinder body (5), the main cylinder bottom (1) is provided with a communication port (600), the high pressure cavity (200) is communicated with the main pressure cavity (400) through the communication port (600), and the axis of the high pressure cavity (200) is mutually perpendicular to the axis of the main pressure cavity (400);
And the main cylinder cover (6) is arranged at the other end of the main cylinder body (5).
2. The booster cylinder according to claim 1, characterized in that a booster return channel (500) is further provided in the master cylinder bottom (1), and one end of the booster return channel (500) is communicated with the low pressure chamber (100), and the other end is communicated with the outside of the master cylinder bottom (1).
3. The booster cylinder according to claim 2, characterized in that one end of the booster return channel (500) is communicated with one end of the low-pressure chamber (100) close to the high-pressure chamber (200), a transition portion (23) is arranged between the piston portion (21) and the slide bar portion (22), and the pipe diameter of the transition portion (23) is smaller than the pipe diameter of the piston portion (21) and larger than the pipe diameter of the slide bar portion (22).
4. The booster cylinder according to claim 1, characterized in that the low pressure chamber (100) is provided with a booster cylinder bottom (3) at one end, the low pressure inlet (300) being provided on the booster cylinder bottom (3).
5. A cylinder according to claim 4, characterized in that one end of the high-pressure chamber (200) is provided with a charging valve (4).
6. The booster cylinder according to claim 5, characterized in that the low-pressure chamber (100) and the high-pressure chamber (200) are coaxially arranged, the booster cylinder bottom (3) and the charging valve (4) being located on opposite sides of the master cylinder bottom (1).
7. A cylinder according to claim 1, characterized in that the main cylinder body (5) is slidably provided with a main pressure piston rod (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810709969.4A CN108757598B (en) | 2018-07-02 | 2018-07-02 | Pressurizing cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810709969.4A CN108757598B (en) | 2018-07-02 | 2018-07-02 | Pressurizing cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108757598A CN108757598A (en) | 2018-11-06 |
| CN108757598B true CN108757598B (en) | 2024-08-09 |
Family
ID=63975389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810709969.4A Active CN108757598B (en) | 2018-07-02 | 2018-07-02 | Pressurizing cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108757598B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112303044B (en) * | 2020-11-03 | 2024-07-16 | 江苏维达机械有限公司 | Supercharging oil cylinder |
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| CN102865269A (en) * | 2011-07-04 | 2013-01-09 | 鸿富锦精密工业（深圳）有限公司 | Cylinder |
| CN202789782U (en) * | 2012-09-26 | 2013-03-13 | 潍坊市华玉塑料机械有限公司 | Pressurizing type oil cylinder |
| CN204403036U (en) * | 2014-12-31 | 2015-06-17 | 南武油缸（常州）有限公司 | For the Thin-type hydraulic oil cylinder of transfer mold |
| CN208417099U (en) * | 2018-07-02 | 2019-01-22 | 天津智威泰克成形技术有限公司 | A kind of pressurized cylinder |
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| CN2188474Y (en) * | 1994-01-08 | 1995-02-01 | 福州海源石材机械有限公司 | Hydraulic amplifier for presser |
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| JP5129378B1 (en) * | 2011-08-26 | 2013-01-30 | 株式会社コスメック | Cylinder device with booster mechanism |
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| CN206071968U (en) * | 2016-08-31 | 2017-04-05 | 临海市晨光机床厂 | A kind of quick drawing liquid and the pressurizing hydraulic cylinder of transfusion |
| CN207111584U (en) * | 2017-08-23 | 2018-03-16 | 南通理工智能制造技术有限公司 | Stroke-controllable automatic reciprocating hydraulic cylinder |
| CN108087348A (en) * | 2018-02-05 | 2018-05-29 | 张耀辰 | A kind of liquid pressure converter |
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|---|---|---|---|---|
| CN102865269A (en) * | 2011-07-04 | 2013-01-09 | 鸿富锦精密工业（深圳）有限公司 | Cylinder |
| CN202789782U (en) * | 2012-09-26 | 2013-03-13 | 潍坊市华玉塑料机械有限公司 | Pressurizing type oil cylinder |
| CN204403036U (en) * | 2014-12-31 | 2015-06-17 | 南武油缸（常州）有限公司 | For the Thin-type hydraulic oil cylinder of transfer mold |
| CN208417099U (en) * | 2018-07-02 | 2019-01-22 | 天津智威泰克成形技术有限公司 | A kind of pressurized cylinder |
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| Publication number | Publication date |
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| CN108757598A (en) | 2018-11-06 |
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Effective date of registration: 20230731 Address after: No. 101, No. 55 Huahua Road, Zhifu District, Yantai City, Shandong Province, 264002 Applicant after: Shandong Future Machinery Equipment Co.,Ltd. Address before: 315020 room 1-35, No. 183 and No. 189, Renmin Road, Jiangbei District, Ningbo City, Zhejiang Province Applicant before: Ningbo qingkezhiwei Technology Co.,Ltd. |
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