CN108547828B - Bidirectional on-load multistage cylinder capable of being horizontally installed - Google Patents
Bidirectional on-load multistage cylinder capable of being horizontally installed Download PDFInfo
- Publication number
- CN108547828B CN108547828B CN201810756228.1A CN201810756228A CN108547828B CN 108547828 B CN108547828 B CN 108547828B CN 201810756228 A CN201810756228 A CN 201810756228A CN 108547828 B CN108547828 B CN 108547828B
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- Prior art keywords
- piston
- end cover
- rear end
- communicated
- air passage
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- 230000002457 bidirectional effect Effects 0.000 title abstract description 7
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims abstract description 5
- 210000004907 gland Anatomy 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 10
- 230000006698 induction Effects 0.000 claims description 5
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
Classifications
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- 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
- F15B15/1433—End caps
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention relates to a multistage cylinder, in particular to a bidirectional on-load multistage cylinder capable of being horizontally installed, and belongs to the technical field of multistage cylinders. The air channel type piston comprises an expansion head, a front end cover, a front inner end cover, an inner telescopic rod, an air channel hollow rod, an outer telescopic rod, an outer cylinder body, an inner piston, an outer piston, a rear end cover and a piston position sensing mechanism, wherein a front air port is arranged on the front end cover, a rear air port is arranged on the rear end cover, a radial air channel is arranged on the outer piston along the radial direction, the outer end of the radial air channel is communicated with the front air port, the inner end of the radial air channel is communicated with the rear end of the air channel hollow rod, the front end of the air channel hollow rod is communicated with the front end of the inner piston, an axial air channel is arranged on the outer piston, the rear end of the axial air channel is communicated with the rear air port, and the front end of the axial air channel is communicated with the rear end of the inner piston. The invention has simple, compact and reasonable structure, adopts the double air ports and the internal air path to realize the loaded telescopic movement of the inner piston and the outer piston, meets the use requirements of horizontal and vertical installation, and expands the use range; meanwhile, the detection of the position of the piston of the cylinder can be realized.
Description
Technical Field
The invention relates to a multistage cylinder, in particular to a bidirectional on-load multistage cylinder capable of being horizontally installed, and belongs to the technical field of multistage cylinders.
Background
In pneumatic systems, multi-stage cylinders are a relatively widely used component in pneumatic circuits. At present, the multi-stage air cylinder on the market is mainly a single-acting multi-stage air cylinder, the single-acting multi-stage air cylinder can only be vertically installed, a piston rod vertically extends upwards and retracts under the action of an external force heavy object, and the single-acting multi-stage air cylinder is simple in structure and has the defect of being incapable of horizontally running.
Disclosure of Invention
The invention aims to overcome the defects, thereby providing the bidirectional load multi-stage cylinder which can be horizontally installed, realizing the pneumatic expansion function of the piston rod of the multi-stage cylinder through an internal gas circuit, meeting the use requirement of horizontal installation and expanding the application range.
According to the technical scheme provided by the invention, the bidirectional on-load multistage cylinder capable of being horizontally installed comprises a telescopic head, a front end cover, a front inner end cover, an inner telescopic rod, an air passage hollow rod, an outer telescopic rod, an outer cylinder body, an inner piston, an outer piston, a rear end cover and a piston position sensing mechanism, wherein the front end of the inner telescopic rod is connected with the telescopic head through threads, and the telescopic head stretches out of the outer cylinder body, and the bidirectional on-load multistage cylinder is characterized in that: the front end and the rear end of the outer cylinder body are respectively connected with the front end cover and the rear end cover through threads, an outer piston is slidably connected in the outer cylinder body, the front end of the outer piston is connected with an outer telescopic rod through threads, and the center of the front end of the outer piston is connected with an air passage hollow rod through threads; the front end of the inner piston is connected with the inner telescopic rod through threads;
the front end cover is provided with a front air port, the rear end cover is provided with a rear air port, the outer piston is radially provided with a radial air passage, the outer end of the radial air passage is communicated with the front air port, the inner end of the radial air passage is communicated with the rear end of an air passage hollow rod, the front end of the air passage hollow rod is communicated with the front end of the inner piston, the outer piston is provided with an axial air passage, the rear end of the axial air passage is communicated with the rear air port, and the front end of the axial air passage is communicated with the rear end of the inner piston; the piston position sensing mechanism is arranged in the rear end cover and can sense magnetic induction switch signals outside the rear end cover, so that piston position detection is realized.
Further, the inner side of the front end cover is provided with a guide belt, and the guide belt plays a role in guiding the expansion of the outer telescopic rod.
Further, a sealing ring is arranged on the side wall of the outer piston, and the sealing ring is in contact sealing with the inner wall of the outer cylinder body.
Further, the front end of the inner cavity of the outer extension rod is connected with a front inner end cover, and the front inner end cover prevents the inner piston from sliding out.
Further, the piston position sensing mechanism comprises a gland, a rear inner end cover, a guide rod, a magnetic ring and a spring, wherein the guide rod is connected in the rear end cover in a front-back sliding way, the spring is arranged between the rear end of the guide rod and the inner side wall of the rear end cover, the front end of the guide rod extends out of the rear inner end cover to be in rear contact with the gland, the front end of the gland is in contact with the rear end face of the outer piston, the guide rod is sleeved with the magnetic ring, and the magnetic ring moves back and forth along with the guide rod.
Compared with the prior art, the invention has the following advantages:
the invention has simple, compact and reasonable structure, adopts the double air ports and the internal air path to realize the loaded telescopic movement of the inner piston and the outer piston, meets the use requirements of horizontal and vertical installation, and expands the use range; meanwhile, the detection of the position of the piston of the cylinder can be realized.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a front end block diagram of the present invention.
Fig. 3 is a rear end block diagram of the present invention.
Reference numerals illustrate: 1-telescopic head, 2-front end cover, 3-guiding belt, 4-front inner end cover, 5-inner telescopic rod, 6-air passage hollow rod, 7-outer telescopic rod, 8-outer cylinder, 9-inner piston, 10-outer piston, 11-sealing ring, 12-gland, 13-rear inner end cover, 14-guiding rod, 15-magnetic ring, 16-spring, 17-rear end cover, 18-front air port, 19-rear air port, 20-radial air passage and 21-axial air passage.
Detailed Description
The invention will be further described with reference to examples of embodiments in the accompanying drawings, in which:
as shown in fig. 1 to 3, the invention mainly comprises a telescopic head 1, a front end cover 2, a front inner end cover 4, an inner telescopic rod 5, an air passage hollow rod 6, an outer telescopic rod 7, an outer cylinder 8, an inner piston 9, an outer piston 10, a rear end cover 17 and a piston position sensing mechanism.
The front end and the rear end of the outer cylinder body 8 are respectively connected with the front end cover 2 and the rear end cover 17 through threads, the outer piston 10 is connected in a sliding manner in the outer cylinder body 8, the front end of the outer piston 10 is connected with the outer telescopic rod 7 through threads, and the center of the front end of the outer piston 10 is connected with the air passage hollow rod 6 through threads.
The outer telescopic rod 7 and the airway hollow rod 6 are connected with an inner piston 9 in a sliding manner, and the front end of the inner piston 9 is connected with the inner telescopic rod 5 through threads. The front end of the inner cavity of the outer telescopic rod 7 is connected with the front inner end cover 4, and the front inner end cover 4 prevents the inner piston 9 from sliding out.
The front end cover 2 is provided with a front air port 18, and the rear end cover 17 is provided with a rear air port 19. The outer piston 10 is provided with a radial air passage 20 along the radial direction, the outer end of the radial air passage 20 is communicated with the front air port 18, the inner end of the radial air passage 20 is communicated with the rear end of the air passage hollow rod 6, and the front end of the air passage hollow rod 6 is communicated with the front end of the inner piston 9. The outer piston 10 is provided with an axial air passage 21, the rear end of the axial air passage 21 is communicated with the rear air port 19, and the front end of the axial air passage 21 is communicated with the rear end of the inner piston 9. The gas enters the front end cavity of the outer piston through the front gas port, enters the front end surface of the inner piston through the radial gas passage and the gas passage hollow rod, enters the rear end surface of the outer piston through the rear gas port, and enters the rear end surface of the inner piston through the axial gas passage, so that the movement of the inner piston and the outer piston of the multi-stage cylinder is realized, the inner piston and the outer piston drive the inner telescopic rod and realize different strokes, and the multi-stage cylinder can move horizontally or vertically downwards under load.
The inner side of the front end cover 2 is provided with a guide belt 3, and the guide belt 3 plays a role in guiding the expansion and contraction of the outer telescopic rod 7.
The front end of the inner telescopic rod 5 is connected with the telescopic head 1 through threads, and the telescopic head 1 extends out of the outer cylinder body 8.
And a sealing ring 11 is arranged on the side wall of the outer piston 10, and the sealing ring 11 is in contact sealing with the inner wall of the outer cylinder 8.
The rear end cover 17 is internally provided with a piston position sensing mechanism which can sense a magnetic induction switch signal outside the rear end cover 17, so that the piston position detection is realized.
The piston position sensing mechanism comprises a gland 12, a rear inner end cover 13, a guide rod 14, a magnetic ring 15 and a spring 16, wherein the guide rod 14 is connected in the rear end cover 17 in a front-back sliding manner, the spring 16 is arranged between the rear end of the guide rod 14 and the inner side wall of the rear end cover 17, the front end of the guide rod 14 extends forwards and stretches out of the rear inner end cover 13 to be in rear contact with the gland 12, and the front end of the gland 12 is in contact with the rear end face of the outer piston 10. The guide rod 14 is sleeved with a magnetic ring 15, and the magnetic ring 15 moves back and forth along with the guide rod 14. When the piston is in operation, the piston pushes the gland backwards, the gland pushes the guide rod, the magnetic ring 15 moves backwards along with the gland, and the magnetic induction switch signal outside the rear end cover 17 is sensed, so that the position detection of the piston is realized.
The invention has simple, compact and reasonable structure, adopts the double air ports and the internal air path to realize the loaded telescopic movement of the inner piston and the outer piston, meets the use requirements of horizontal and vertical installation, and expands the use range; meanwhile, the detection of the position of the piston of the cylinder can be realized.
Claims (4)
1. The utility model provides a can horizontal installation two-way area load multistage cylinder, including flexible head (1), front end housing (2), preceding inner end housing (4), interior telescopic link (5), air flue hollow rod (6), outer telescopic link (7), outer cylinder body (8), interior piston (9), outer piston (10), rear end cap (17) and piston position induction mechanism, interior telescopic link (5) front end is through threaded connection flexible head (1), flexible head (1) stretches out outer cylinder body (8), characterized by: the front end and the rear end of the outer cylinder body (8) are respectively connected with the front end cover (2) and the rear end cover (17) through threads, the outer cylinder body (8) is connected with the outer piston (10) in a sliding manner, the front end of the outer piston (10) is connected with the outer telescopic rod (7) through threads, and the center of the front end of the outer piston (10) is connected with the air passage hollow rod (6) through threads; an inner piston (9) is connected between the outer telescopic rod (7) and the airway hollow rod (6) in a sliding way, and the front end of the inner piston (9) is connected with the inner telescopic rod (5) through threads;
a front air port (18) is arranged on the front end cover (2), a rear air port (19) is arranged on the rear end cover (17), a radial air passage (20) is arranged on the outer piston (10) in the radial direction, the outer end of the radial air passage (20) is communicated with the front air port (18), the inner end of the radial air passage (20) is communicated with the rear end of the air passage hollow rod (6), the front end of the air passage hollow rod (6) is communicated with the front end of the inner piston (9), an axial air passage (21) is arranged on the outer piston (10), the rear end of the axial air passage (21) is communicated with the rear air port (19), and the front end of the axial air passage (21) is communicated with the rear end of the inner piston (9); a piston position sensing mechanism is arranged in the rear end cover (17), and the piston position sensing mechanism can sense with a magnetic induction switch signal outside the rear end cover (17), so that the piston position detection is realized;
the piston position sensing mechanism comprises a gland (12), a rear inner end cover (13), a guide rod (14), a magnetic ring (15) and a spring (16), wherein the guide rod (14) is connected in the rear end cover (17) in a front-back sliding mode, the spring (16) is arranged between the rear end of the guide rod (14) and the inner side wall of the rear end cover (17), the front end of the guide rod (14) extends forwards to enable the rear inner end cover (13) to be in rear contact with the gland (12), the front end of the gland (12) is in contact with the rear end face of the outer piston (10), the magnetic ring (15) is sleeved on the guide rod (14), and the magnetic ring (15) moves forwards and backwards along with the guide rod (14).
2. The horizontally mountable bi-directional on-load multi-stage cylinder of claim 1 wherein: the inner side of the front end cover (2) is provided with a guide belt (3), and the guide belt (3) plays a role in guiding the expansion of the external expansion link (7).
3. The horizontally mountable bi-directional on-load multi-stage cylinder of claim 1 wherein: and a sealing ring (11) is arranged on the side wall of the outer piston (10), and the sealing ring (11) is in contact sealing with the inner wall of the outer cylinder body (8).
4. The horizontally mountable bi-directional on-load multi-stage cylinder of claim 1 wherein: the front end of the inner cavity of the outer extension rod (7) is connected with the front inner end cover (4), and the front inner end cover (4) prevents the inner piston (9) from sliding out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810756228.1A CN108547828B (en) | 2018-07-11 | 2018-07-11 | Bidirectional on-load multistage cylinder capable of being horizontally installed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810756228.1A CN108547828B (en) | 2018-07-11 | 2018-07-11 | Bidirectional on-load multistage cylinder capable of being horizontally installed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108547828A CN108547828A (en) | 2018-09-18 |
| CN108547828B true CN108547828B (en) | 2024-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810756228.1A Active CN108547828B (en) | 2018-07-11 | 2018-07-11 | Bidirectional on-load multistage cylinder capable of being horizontally installed |
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| Country | Link |
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| CN (1) | CN108547828B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114051858A (en) * | 2021-11-16 | 2022-02-18 | 丰县鲁班工程机械有限公司 | Water pumping device for garden tree akebia stem exhaust device |
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| CN201661546U (en) * | 2010-04-26 | 2010-12-01 | 肇庆市志成气动有限公司 | Double-acting push barrel cylinder |
| CN202348825U (en) * | 2011-11-28 | 2012-07-25 | 宁波佳尔灵气动机械有限公司 | Double-stroke cylinder |
| DE102011108232A1 (en) * | 2011-07-11 | 2013-01-17 | Hilde Schlögl | Double-acting telescopic hydraulic cylinder for snow plow, particularly lateral snow plow, has two openings for feeding or discharging of hydraulic fluid from outer cylinder member |
| CN105736511A (en) * | 2016-04-18 | 2016-07-06 | 苏州市汉诺威升降台有限公司 | Hydraulic cylinder used for elevator |
| CN205533518U (en) * | 2016-01-22 | 2016-08-31 | 汕头市合乐自动化设备有限公司 | Two -stage gas cylinder |
| CN208534898U (en) * | 2018-07-11 | 2019-02-22 | 无锡气动技术研究所有限公司 | The two-way tape that can be horizontally mounted carries multi-stage cylinder |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3064782B1 (en) * | 2015-03-06 | 2018-06-20 | Otto Nussbaum GmbH & Co. KG | Cylinder piston unit |
-
2018
- 2018-07-11 CN CN201810756228.1A patent/CN108547828B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3259027A (en) * | 1963-09-17 | 1966-07-05 | Decca Ltd | Two-stage fluid pressure operated piston and cylinder assemblies |
| CN2854166Y (en) * | 2005-12-13 | 2007-01-03 | 北京交通大学 | Glass fiber reinforced plastic two-action multi-stage cylinder |
| CN101737375A (en) * | 2009-12-31 | 2010-06-16 | 白炳生 | Top cylinder center oil-taking two-level sleeve cylinder |
| CN201661546U (en) * | 2010-04-26 | 2010-12-01 | 肇庆市志成气动有限公司 | Double-acting push barrel cylinder |
| DE102011108232A1 (en) * | 2011-07-11 | 2013-01-17 | Hilde Schlögl | Double-acting telescopic hydraulic cylinder for snow plow, particularly lateral snow plow, has two openings for feeding or discharging of hydraulic fluid from outer cylinder member |
| CN202348825U (en) * | 2011-11-28 | 2012-07-25 | 宁波佳尔灵气动机械有限公司 | Double-stroke cylinder |
| CN205533518U (en) * | 2016-01-22 | 2016-08-31 | 汕头市合乐自动化设备有限公司 | Two -stage gas cylinder |
| CN105736511A (en) * | 2016-04-18 | 2016-07-06 | 苏州市汉诺威升降台有限公司 | Hydraulic cylinder used for elevator |
| CN208534898U (en) * | 2018-07-11 | 2019-02-22 | 无锡气动技术研究所有限公司 | The two-way tape that can be horizontally mounted carries multi-stage cylinder |
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| Publication number | Publication date |
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| CN108547828A (en) | 2018-09-18 |
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