CN108730259B - Hydraulic device with adjustable limiting mechanism - Google Patents
Hydraulic device with adjustable limiting mechanism Download PDFInfo
- Publication number
- CN108730259B CN108730259B CN201810612177.5A CN201810612177A CN108730259B CN 108730259 B CN108730259 B CN 108730259B CN 201810612177 A CN201810612177 A CN 201810612177A CN 108730259 B CN108730259 B CN 108730259B
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- Prior art keywords
- limiting
- pin
- piston rod
- sleeve
- hole
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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
- F15B15/1457—Piston rods
-
- 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
- F15B15/20—Other details, e.g. assembly with regulating devices
-
- 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
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/24—Other details, e.g. assembly with regulating devices for restricting the stroke
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention provides a hydraulic device with an adjustable limiting mechanism, and belongs to the field of hydraulic cylinders. It has solved current pneumatic cylinder and can't avoid the piston rod to rotate, and can't carry out spacing problem. This take adjustable stop gear's hydraulic means includes cylinder and cylinder cap, be equipped with the telescopic hole on the cylinder cap, still include the piston rod that stretches out from the telescopic hole, be equipped with the spacing groove on the piston rod pole wall, and the spacing groove both ends are sealed, still including the stop collar of cover on the piston rod, the stop collar wall is equipped with the spacing hole of internal thread, still include the spacing bolt of spiro union on the spacing hole, and stop bolt tip top is tight at the spacing inslot, and make stop collar and piston rod fixed, the cylinder outer wall is fixed with a plurality of round cover form cotter pins, the cylinder section of thick bamboo wall is equipped with the pinhole that aligns with a plurality of cotter pin inslots, still including the spacer pin that the activity was inlayed in the cotter pin, and can promote or stimulate the spacer pin, make the spacer pin tip. The hydraulic device can avoid the rotation of the piston rod and has adjustable limit.
Description
The application is filed on 2017, 3, 15 and 2017101519546, and is a divisional application of a patent of a hydraulic device with an adjustable limiting mechanism.
Technical Field
The invention belongs to the technical field of hydraulic cylinders, and relates to a hydraulic device with an adjustable limiting mechanism.
Background
When the existing hydraulic cylinder drives the piston to do reciprocating motion in the cylinder barrel through the piston rod, the piston rod and the cylinder cover are in a circular matching structure, so that the piston rod can rotate around the axis of the piston rod, certain occasions needing positioning are not facilitated, the extending distance of the piston rod needs to be limited in certain occasions, and the traditional hydraulic cylinder is inconvenient to adjust and needs to be improved.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a hydraulic device with an adjustable limiting mechanism, which can prevent a piston rod from rotating and limit the piston rod.
The purpose of the invention can be realized by the following technical scheme: take adjustable stop gear's hydraulic means, including the cylinder and fixing the cylinder cap at the cylinder front end, be equipped with the flexible hole on the cylinder cap, still include the piston rod that stretches out from the flexible hole, its characterized in that: the piston rod wall is provided with a slotted limiting groove which is arranged along the axial direction of the piston rod, the two ends of the limiting groove are sealed, the telescopic hole is of a hole-shaped structure matched with the cross section of the piston rod, the limiting sleeve is sleeved on the piston rod and is positioned on one side of a cylinder barrel with a cylinder cover, the limiting sleeve wall is provided with an internal thread limiting hole and further comprises a limiting bolt which is screwed on the limiting hole, the end part of the limiting bolt tightly props up in the limiting groove and is fixed with the piston rod, the outer wall of the cylinder barrel is fixed with a plurality of round sleeve-shaped pin sleeves, the cylinder barrel wall is provided with pin holes which are aligned with the inner walls of the plurality of pin sleeves, the limiting pin which is movably embedded in the pin hole is further included, the limiting pin can be pushed or pulled, and the end part.
This pneumatic cylinder utilizes spacing groove and the cooperation of matched with flexible hole, avoids the piston rod to rotate around self axis, and can utilize on the spacing bolt fixed piston rod pole wall in the stop collar, utilizes the spacer pin top at the spacing inslot to carry on spacingly to the piston rod, and can conveniently adjust spacing bolt position, and through the spacer pin top with the difference at the spacing inslot, in order to carry out the spacing of different distances.
In foretell hydraulic means of adjustable stop gear in area, the spacer pin on be fixed with the retaining ring, the spacer pin rear end is fixed with the internal thread spacer sleeve, the pin bush has the external screw thread, still including the compression spring of cover on the spacer pin, and the compression spring both ends push up respectively in pin bush tip and spacer sleeve bottom to promote the retaining ring and support on the cylinder inner wall, and spacer pin tip and spacing groove separation this moment, and can promote the spacer pin, make the spacer pin tip push up on the spacing groove, and make the spacer sleeve spiro union on the pin bush.
Therefore, the stability of the limiting pin against the limiting groove or separated from the limiting groove can be improved.
In the hydraulic device with the adjustable limiting mechanism, the hole wall of the pin hole is provided with a sealing groove, and a sealing ring sleeved on the limiting pin is embedded in the sealing groove.
The sealing ring is used for sealing and leakage prevention.
In the hydraulic device with the adjustable limiting mechanism, the cross section of the limiting sleeve is C-shaped, the front side of the limiting sleeve is provided with a notch, the limiting sleeve can be sleeved on the piston rod through the notch, and the limiting hole is positioned on the sleeve wall on the left side or the right side of the limiting sleeve.
Therefore, the limiting sleeve can be conveniently fixed at any position of the piston rod, and the influence of the connected load is avoided.
In the hydraulic device with the adjustable limiting mechanism, the piston rod is provided with scale marks.
Therefore, the scale marks are used for conveniently adjusting.
In the hydraulic device with the adjustable limiting mechanism, the limiting sleeve is formed by cutting a steel sleeve.
In the hydraulic device with the adjustable limiting mechanism, the plurality of pin sleeves are uniformly distributed at equal intervals along the axial direction of the piston rod.
In the hydraulic device with the adjustable limiting mechanism, the limiting pin and the check ring are of an integral structure, and the blocking sleeve is in threaded connection with the rear end of the limiting pin.
Therefore, the maintenance is convenient.
Compared with the prior art, the invention has the following advantages:
this pneumatic cylinder utilizes spacing groove and the cooperation of matched with flexible hole, avoids the piston rod to rotate around self axis, and can utilize on the spacing bolt fixed piston rod pole wall in the stop collar, utilizes the spacer pin top at the spacing inslot to carry on spacingly to the piston rod, and can conveniently adjust spacing bolt position, and through the spacer pin top with the difference at the spacing inslot, in order to carry out the spacing of different distances.
Drawings
FIG. 1 is a partial cross-sectional view of the present hydraulic device.
Fig. 2 is a schematic view of the piston rod and the stop collar in cooperation.
In the figure, the position of the upper end of the main shaft,
1. a cylinder barrel; 11. a cylinder cover; 12. a telescopic hole;
2. a piston rod; 21. a limiting groove;
3. a limiting sleeve; 31. a limiting hole; 32. a limit bolt;
4. a pin bush; 41. a pin hole; 42. a spacing pin; 43. a retainer ring; 44. a blocking sleeve; 45. a compression spring; 46. and (5) sealing rings.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in figures 1 and 2, the hydraulic device with the adjustable limiting mechanism comprises a cylinder barrel 1 and a cylinder cover 11 fixed at the front end of the cylinder barrel 1, wherein a telescopic hole 12 is arranged on the cylinder cover 11, the hydraulic device also comprises a piston rod 2 extending out of the telescopic hole 12, a slotted limiting groove 21 is arranged on the rod wall of the piston rod 2 along the axial direction of the piston rod 2, two ends of the limiting groove 21 are sealed, the telescopic hole 12 is a hole-shaped structure matched with the cross section of the piston rod 2, the hydraulic device also comprises a limiting sleeve 3 sleeved on the piston rod 2, the limiting sleeve 3 is positioned at one side of the cylinder barrel 1 opposite to the cylinder barrel 11, the sleeve wall of the limiting sleeve 3 is provided with an internal thread limiting hole 31, the hydraulic device also comprises a limiting bolt 32 screwed on the limiting hole 31, the end part of the limiting bolt 32 is tightly propped in the limiting groove 21, the limiting sleeve 3 is fixed with the piston rod 2, a plurality of round sleeve-shaped pin sleeves, the limiting device further comprises a limiting pin 42 movably embedded in the pin hole 41, and the limiting pin 42 can be pushed or pulled, so that the end part of the limiting pin 42 is movably propped against the limiting groove 21 or separated from the limiting groove 21.
Furthermore, a retainer ring 43 is fixed on the limit pin 42, an internal thread retainer sleeve 44 is fixed at the rear end of the limit pin 42, the pin sleeve 4 is provided with an external thread, the compression spring 45 is sleeved on the limit pin 42, two ends of the compression spring 45 respectively push against the end part of the pin sleeve 4 and the bottom of the retainer sleeve 44, the retainer ring 43 is pushed against the inner wall of the cylinder barrel 1, the end part of the limit pin 42 is separated from the limit groove 21 at the moment, the limit pin 42 can be pushed, the end part of the limit pin 42 is pushed against the limit groove 21, and the retainer sleeve 44 is screwed on the pin sleeve 4. The hole wall of the pin hole 41 is provided with a sealing groove, and a sealing ring 46 which is sleeved on the limit pin 42 in a sealing manner is embedded in the sealing groove. The cross section of the limiting sleeve 3 is C-shaped, a notch is formed in the front side of the limiting sleeve 3, the limiting sleeve 3 can be sleeved on the piston rod 2 through the notch, and the limiting hole 31 is located in the sleeve wall on the left side or the right side of the limiting sleeve 3. The piston rod 2 is provided with scale marks. The stop collar 3 is formed by cutting a steel sleeve. The pin sleeves 4 are evenly distributed along the axial direction of the piston rod 2 at equal intervals. The limit pin 42 and the retainer ring 43 are of an integral structure, and the retaining sleeve 44 is screwed on the rear end of the limit pin 42.
This pneumatic cylinder utilizes spacing groove 21 and the cooperation of matched with flexible hole 12, avoids piston rod 2 to rotate around self axis, and can utilize spacing bolt 32 in the stop collar 3 to fix 2 pole walls of piston rod, utilizes spacer pin 42 to push up in spacing groove 21 to carry out spacingly to piston rod 2, and can conveniently adjust spacing bolt 32 position, and through the spacer pin 42 top with the difference in spacing groove 21, in order to carry out the spacing of different distances.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although the terms of the cylinder tube 1, the cylinder head 11, the telescopic hole 12, the piston rod 2, the limit groove 21, the limit sleeve 3, the limit hole 31, the limit bolt 32, the pin sleeve 4, the pin hole 41, the limit pin 42, the retainer ring 43, the retainer sleeve 44, the compression spring 45, the seal ring 46, and the like are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (3)
1. The utility model provides a take adjustable stop gear's hydraulic means, includes cylinder (1) and fixes cylinder cap (11) at cylinder (1) front end, is equipped with flexible hole (12) on cylinder cap (11), still includes piston rod (2) that stretch out from flexible hole (12), its characterized in that: the cylinder comprises a piston rod (2), a slotted limiting groove (21) which is axially arranged along the piston rod (2) and is provided with a hole-shaped structure matched with the cross section of the piston rod (2), and a limiting sleeve (3) which is sleeved on the piston rod (2), wherein the limiting groove (21) is closed at two ends, the telescopic hole (12) is a hole-shaped structure matched with the cross section of the piston rod (2), the limiting sleeve (3) is positioned at one side of a reverse cylinder barrel (1) of a cylinder cover (11), the sleeve wall of the limiting sleeve (3) is provided with an internal thread limiting hole (31), the limiting sleeve also comprises a limiting bolt (32) which is screwed on the limiting hole (31), the end part of the limiting bolt (32) is tightly propped in the limiting groove (21) and enables the limiting sleeve (3) to be fixed with the piston rod (2), a plurality of round sleeve-shaped pin sleeves (4) are fixed on the outer wall of the cylinder barrel (1), pin holes (41) which are aligned with the, the limiting pin (42) can be pushed or pulled, so that the end part of the limiting pin (42) is movably supported in the limiting groove (21) or separated from the limiting groove (21); the piston rod (2) is provided with scale marks; the limiting sleeve (3) is formed by cutting a steel sleeve; the hole wall of the pin hole (41) is provided with a sealing groove, and a sealing ring (46) which is sleeved on the limiting pin (42) in a sealing way is embedded in the sealing groove; the cross section of the limiting sleeve (3) is C-shaped, a notch is formed in the front side of the limiting sleeve (3), the limiting sleeve (3) can be sleeved on the piston rod (2) through the notch, and the limiting hole (31) is positioned on the sleeve wall on the left side or the right side of the limiting sleeve (3); the plurality of pin sleeves (4) are axially and equidistantly distributed along the piston rod (2).
2. The hydraulic device with the adjustable limiting mechanism according to claim 1, characterized in that: the stop pin (42) on be fixed with retaining ring (43), stop pin (42) rear end is fixed with internal thread spacer sleeve (44), pin bush (4) have the external screw thread, still including cover compression spring (45) on stop pin (42), and compression spring (45) both ends are pushed against pin bush (4) tip and spacer sleeve (44) bottom respectively, and promote retaining ring (43) and support on cylinder (1) inner wall, and stop pin (42) tip and spacing groove (21) separation this moment, and can promote stop pin (42), make stop pin (42) tip top on spacing groove (21), and make spacer sleeve (44) spiro union on pin bush (4).
3. The hydraulic device with the adjustable limiting mechanism according to claim 2, characterized in that: the limiting pin (42) and the retainer ring (43) are of an integral structure, and the retaining sleeve (44) is screwed at the rear end of the limiting pin (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810612177.5A CN108730259B (en) | 2017-03-15 | 2017-03-15 | Hydraulic device with adjustable limiting mechanism |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710151954.6A CN106837920B (en) | 2017-03-15 | 2017-03-15 | A kind of hydraulic device with adjustable limiting mechanism |
| CN201810612177.5A CN108730259B (en) | 2017-03-15 | 2017-03-15 | Hydraulic device with adjustable limiting mechanism |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710151954.6A Division CN106837920B (en) | 2017-03-15 | 2017-03-15 | A kind of hydraulic device with adjustable limiting mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108730259A CN108730259A (en) | 2018-11-02 |
| CN108730259B true CN108730259B (en) | 2020-05-01 |
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710151954.6A Expired - Fee Related CN106837920B (en) | 2017-03-15 | 2017-03-15 | A kind of hydraulic device with adjustable limiting mechanism |
| CN201810612177.5A Active CN108730259B (en) | 2017-03-15 | 2017-03-15 | Hydraulic device with adjustable limiting mechanism |
| CN201810640768.3A Active CN108757633B (en) | 2017-03-15 | 2017-03-15 | A kind of hydraulic device with position-limit mechanism |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710151954.6A Expired - Fee Related CN106837920B (en) | 2017-03-15 | 2017-03-15 | A kind of hydraulic device with adjustable limiting mechanism |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810640768.3A Active CN108757633B (en) | 2017-03-15 | 2017-03-15 | A kind of hydraulic device with position-limit mechanism |
Country Status (1)
| Country | Link |
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| CN (3) | CN106837920B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108714338A (en) * | 2018-07-27 | 2018-10-30 | 新昌县营道科技有限公司 | A kind of adjustable clarifier filter device and its application method |
| CN109958492B (en) * | 2019-03-22 | 2024-04-23 | 东风商用车有限公司 | Adjustable engine brake actuating mechanism and application method thereof |
| CN111721666A (en) * | 2020-06-29 | 2020-09-29 | 山东省鲁南地质工程勘察院(山东省地勘局第二地质大队) | Coal mining subsidence crack area reconsitution soil moisture survey device |
| CN111997957B (en) * | 2020-07-31 | 2021-11-26 | 清华大学 | Hydraulic cylinder and control rod hydraulic drive system |
| CN112284815A (en) * | 2020-09-08 | 2021-01-29 | 中国水利水电科学研究院 | Large-capacity water sampler |
| CN114810716A (en) * | 2022-04-24 | 2022-07-29 | 合肥志必达液压科技有限公司 | Hydraulic cylinder piston system |
| CN117139843A (en) * | 2023-10-25 | 2023-12-01 | 上海三束实业有限公司 | Energy storage battery bipolar plate polymer laser welding equipment |
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| CN103899595A (en) * | 2014-03-28 | 2014-07-02 | 哈尔滨工程大学 | Optional-position lockable hydraulic cylinder |
| CN206000803U (en) * | 2016-08-31 | 2017-03-08 | 常州液压成套设备厂有限公司 | Automatic hydraulic locks servomotor |
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| US4119017A (en) * | 1977-03-23 | 1978-10-10 | Phd, Inc. | Non-rotatable fluid power cylinder |
| JPS60143104A (en) * | 1983-12-30 | 1985-07-29 | Kokusan Kinzoku Kogyo Co Ltd | Adjusting device of piston rod for caulking device and the like |
| US5577433A (en) * | 1995-09-06 | 1996-11-26 | Henry; Michael F. | Regulated speed linear actuator |
| JP3559213B2 (en) * | 2000-03-03 | 2004-08-25 | 株式会社半導体先端テクノロジーズ | Load port and production method using it |
| GB0301095D0 (en) * | 2003-01-17 | 2003-02-19 | Gibbs Tech Ltd | Actuator |
| CN100342143C (en) * | 2004-07-22 | 2007-10-10 | 杨世祥 | Two-stage screw internal foodback digital fluid cylinder |
| CN2878760Y (en) * | 2006-03-09 | 2007-03-14 | 裘洪立 | Side-status cylinder |
| CN202118026U (en) * | 2011-03-23 | 2012-01-18 | 宝山钢铁股份有限公司 | Hydraulic cylinder capable of realizing self-reversing and continuous reciprocating movement |
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| CN205315385U (en) * | 2016-01-22 | 2016-06-15 | 枣庄市达源液压设备有限公司 | Simple and easy pneumatic cylinder |
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| CN206801990U (en) * | 2017-03-15 | 2017-12-26 | 桐乡市乌镇润桐嘉业机械维修中心 | A kind of hydraulic means with adjustable limiting mechanism |
-
2017
- 2017-03-15 CN CN201710151954.6A patent/CN106837920B/en not_active Expired - Fee Related
- 2017-03-15 CN CN201810612177.5A patent/CN108730259B/en active Active
- 2017-03-15 CN CN201810640768.3A patent/CN108757633B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899595A (en) * | 2014-03-28 | 2014-07-02 | 哈尔滨工程大学 | Optional-position lockable hydraulic cylinder |
| CN206000803U (en) * | 2016-08-31 | 2017-03-08 | 常州液压成套设备厂有限公司 | Automatic hydraulic locks servomotor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108757633A (en) | 2018-11-06 |
| CN106837920B (en) | 2018-09-25 |
| CN106837920A (en) | 2017-06-13 |
| CN108757633B (en) | 2019-11-22 |
| CN108730259A (en) | 2018-11-02 |
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