CN108757633B - A kind of hydraulic device with position-limit mechanism - Google Patents
A kind of hydraulic device with position-limit mechanism Download PDFInfo
- Publication number
- CN108757633B CN108757633B CN201810640768.3A CN201810640768A CN108757633B CN 108757633 B CN108757633 B CN 108757633B CN 201810640768 A CN201810640768 A CN 201810640768A CN 108757633 B CN108757633 B CN 108757633B
- Authority
- CN
- China
- Prior art keywords
- limit
- piston rod
- limiting slot
- spacer pin
- hole
- 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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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
- 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
Abstract
The present invention provides a kind of hydraulic devices with position-limit mechanism, belong to hydraulic cylinder field.It, which solves existing hydraulic cylinder, not can avoid piston rod rotation, and the problem of can not be limited.This hydraulic device with adjustable limiting mechanism includes cylinder barrel and cylinder cap, cylinder cap is equipped with telescopic hole, it further include the piston rod stretched out from telescopic hole, piston rod bar wall is equipped with limiting slot, and limiting slot is closed at both ends, it further include the limit sleeve of set on the piston rod, limit sleeve jacket wall is equipped with internal screw thread limit hole, it further include the caging bolt being screwed on limit hole, and caging bolt end is held out against in limiting slot, and fix limit sleeve with piston rod, cylinder barrel outer wall is fixed with several round shell-like guidees, cylinder barrel barrel is equipped with the pin hole with several guide aligning inners, it further include spacer pin of the activity in pin hole, and spacer pin can be pushed or pull on, separate limit pin end movable top in limiting slot or with limiting slot.This hydraulic device is avoided that piston rod rotation, and has adjustable limiting.
Description
The application is filed on March 15th, 2017, application No. is 2017101519546, a kind of entitled band limit
The divisional application of the patent of the hydraulic device of position mechanism.
Technical field
The invention belongs to hydraulic cylinder technical fields, are related to a kind of hydraulic device with position-limit mechanism.
Background technique
Existing hydraulic cylinder by piston rod band piston in cylinder barrel when being moved reciprocatingly, since piston rod and cylinder cap are
Rounded engagement structure, therefore will lead to piston rod and be unfavorable for certain occasions for needing to position around own axis, and is certain
Occasion needs to limit piston rod outreach, but traditional hydraulic cylinder is inconvenient to be adjusted, it is therefore necessary to carry out
It improves.
Summary of the invention
The purpose of the present invention is being directed to the above-mentioned problems in the prior art, provides one kind and be avoided that piston rod itself
Rotation, and the hydraulic device with position-limit mechanism that piston rod can be limited.
Object of the invention can be realized by the following technical scheme: the hydraulic device with position-limit mechanism, including cylinder barrel and
It is fixed on the cylinder cap of cylinder barrel front end, cylinder cap is equipped with telescopic hole, further includes the piston rod stretched out from telescopic hole, it is characterised in that:
Piston rod bar wall is equipped with along piston rod to the fluting shape limiting slot of setting, and limiting slot is closed at both ends, and telescopic hole is and work
The cavernous structure of stopper rod section cooperation further includes the limit sleeve of set on the piston rod, and limit sleeve is located at the reversed cylinder barrel side of cylinder cap,
Limit sleeve jacket wall is equipped with internal screw thread limit hole, further includes the caging bolt being screwed on limit hole, and caging bolt end is held out against
In limiting slot, and fix limit sleeve with piston rod, the cylinder barrel outer wall is fixed with several round shell-like guidees, cylinder barrel barrel
Further include spacer pin of the activity in pin hole equipped with the pin hole with several guide aligning inners, and limit can be pushed or pull on
Pin separates limit pin end movable top in limiting slot or with limiting slot.
This hydraulic cylinder is cooperated using limiting slot with the telescopic hole matched, avoids piston rod around own axis, and
It can use on the caging bolt fixed piston rod bar wall in limit sleeve, withstood in limiting slot using spacer pin, to piston rod
It is limited, and can facilitate and adjust caging bolt position, and by withstanding on different spacer pins in limiting slot, to carry out not
The limit of same distance.
In the above-mentioned hydraulic device with position-limit mechanism, retaining ring is fixed on the spacer pin, spacer pin rear end is solid
Surely there is internal screw thread interstage sleeve, guide has external screw thread, further includes the compressed spring covered on spacer pin, and compressed spring both ends are distinguished
Guide end and interstage sleeve bottom are withstood on, and retaining ring is pushed to be against in inner wall of cylinder, and limit pin end is separated with limiting slot at this time,
And spacer pin can be pushed, withstand on limit pin end on limiting slot, and be screwed onto interstage sleeve on guide.
Therefore stability when spacer pin withstands on limiting slot or separates with limiting slot can be improved.
In the above-mentioned hydraulic device with position-limit mechanism, the pin hole hole wall is equipped with seal groove, and seal groove is embedded
There is sealing ring of the sealing shroud on spacer pin.
Play the role of sealing and anti-leakage using sealing ring.
In the above-mentioned hydraulic device with position-limit mechanism, the limit sleeve cross section is C-shaped, and tool on front side of limit sleeve
Jagged, limit sleeve can be covered on the piston rod by notch, and the limit hole is located on the jacket wall of limit sleeve left or right side.
Therefore convenient to fix limit sleeve from piston rod any position, it avoids by the load effect connected.
In the above-mentioned hydraulic device with position-limit mechanism, the piston rod is equipped with graduation mark.
Therefore it is conveniently adjusted using graduation mark.
In the above-mentioned hydraulic device with position-limit mechanism, the limit sleeve is that steel bushing cuts to be formed.
In the above-mentioned hydraulic device with position-limit mechanism, several guidees are evenly distributed with along piston rod to equidistant.
In the above-mentioned hydraulic device with position-limit mechanism, the spacer pin and retaining ring are structure as a whole, and interstage sleeve spiral shell
It connects in spacer pin rear end.
Therefore facilitate carry out repair and maintenance.
Compared with prior art, the present invention has the advantage that
This hydraulic cylinder is cooperated using limiting slot with the telescopic hole matched, avoids piston rod around own axis, and
It can use on the caging bolt fixed piston rod bar wall in limit sleeve, withstood in limiting slot using spacer pin, to piston rod
It is limited, and can facilitate and adjust caging bolt position, and by withstanding on different spacer pins in limiting slot, to carry out not
The limit of same distance.
Detailed description of the invention
Fig. 1 is this hydraulic device partial sectional view.
Fig. 2 is piston rod and limit sleeve cooperation schematic diagram.
In figure,
1, cylinder barrel；11, cylinder cap；12, telescopic hole；
2, piston rod；21, limiting slot；
3, limit sleeve；31, limit hole；32, caging bolt；
4, guide；41, pin hole；42, spacer pin；43, retaining ring；44, interstage sleeve；45, compressed spring；46, sealing ring.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As depicted in figs. 1 and 2, hydraulic device of the present invention with position-limit mechanism, including cylinder barrel 1 and it is fixed on 1 front end of cylinder barrel
Cylinder cap 11, it further includes the piston rod 2 stretched out from telescopic hole 12,2 bar wall of piston rod is equipped with that cylinder cap 11, which is equipped with telescopic hole 12,
The fluting shape limiting slot 21 being axially arranged along piston rod 2, and limiting slot 21 is closed at both ends, telescopic hole 12 is and 2 section of piston rod
The cavernous structure of cooperation further includes the limit sleeve 3 covered on piston rod 2, and limit sleeve 3 is located at reversed 1 side of cylinder barrel of cylinder cap 11, limit
Position 3 jacket walls of set are equipped with internal screw thread limit hole 31, further include the caging bolt 32 being screwed on limit hole 31, and 32 end of caging bolt
Portion is held out against in limiting slot 21, and keeps limit sleeve 3 and piston rod 2 fixed, and 1 outer wall of cylinder barrel is fixed with several round shell-like guidees 4, cylinder
1 barrel of cylinder is equipped with pin hole 41 with several 4 aligning inners of guide, further includes spacer pin 42 of the activity in pin hole 41, and energy
Spacer pin 42 is pushed or pull on, separates 42 end movable top of spacer pin in limiting slot 21 or with limiting slot 21.
Further, retaining ring 43 is fixed on spacer pin 42,42 rear end of spacer pin is fixed with internal screw thread interstage sleeve 44, guide 4
It further include the compressed spring 45 covered on spacer pin 42, and 45 both ends of compressed spring withstand on 4 end of guide respectively with external screw thread
With 44 bottom of interstage sleeve, and retaining ring 43 is pushed to be against on 1 inner wall of cylinder barrel, and 42 end of spacer pin is separated with limiting slot 21 at this time, and
Spacer pin 42 can be pushed, withstands on 42 end of spacer pin on limiting slot 21, and be screwed onto interstage sleeve 44 on guide 4.41 hole of pin hole
Wall is equipped with seal groove, and seal groove is embedded with sealing ring 46 of the sealing shroud on spacer pin 42.3 cross section of limit sleeve is C-shaped, and
There is notch on front side of limit sleeve 3, limit sleeve 3 can be covered on piston rod 2 by notch, limit hole 31 be located on the left of limit sleeve 3 or
On the jacket wall of right side.Piston rod 2 is equipped with graduation mark.Limit sleeve 3 is that steel bushing cuts to be formed.Several guidees 4 are axial etc. along piston rod 2
Away from uniformly distributed.Spacer pin 42 and retaining ring 43 are structure as a whole, and interstage sleeve 44 is screwed onto 42 rear end of spacer pin.
This hydraulic cylinder is cooperated using limiting slot 21 with the telescopic hole 12 matched, and piston rod 2 is avoided to turn around own axes
It is dynamic, and can use on 32 fixed piston rod of caging bolt, the 2 bar wall in limit sleeve 3, limiting slot 21 is withstood on using spacer pin 42
It is interior, to be limited to piston rod 2, and it can facilitate and adjust 32 position of caging bolt, and by pushing up different spacer pins 42
In limiting slot 21, to carry out the limit of different distance.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although cylinder barrel 1, cylinder cap 11, telescopic hole 12, piston rod 2, limiting slot 21, limit sleeve 3, limit is used more herein
The arts such as position hole 31, caging bolt 32, guide 4, pin hole 41, spacer pin 42, retaining ring 43, interstage sleeve 44, compressed spring 45, sealing ring 46
Language, but it does not exclude the possibility of using other terms.The use of these items is only for be more convenient to describe and explain this
The essence of invention；Being construed as any additional limitation is disagreed with spirit of that invention.
Claims (4)
1. a kind of hydraulic device with position-limit mechanism, including cylinder barrel (1) and it is fixed on the cylinder cap (11) of cylinder barrel (1) front end, cylinder cap
(11) telescopic hole (12) are equipped with, further include the piston rod (2) stretched out from telescopic hole (12), it is characterised in that: piston rod (2) bar
Wall is equipped with the fluting shape limiting slot (21) being axially arranged along piston rod (2), and limiting slot (21) is closed at both ends, telescopic hole (12)
It further include the limit sleeve (3) covered on piston rod (2), limit sleeve (3) position for the cavernous structure cooperated with piston rod (2) section
In the side of cylinder cap (11) far from cylinder barrel (1), it further includes being screwed onto limit that limit sleeve (3) jacket wall, which is equipped with internal screw thread limit hole (31),
Caging bolt (32) on position hole (31), and caging bolt (32) end is held out against in limiting slot (21), and make limit sleeve (3) with
Piston rod (2) is fixed, and described cylinder barrel (1) outer wall is fixed with several round shell-like guidees (4), cylinder barrel (1) barrel be equipped with it is several
The pin hole (41) of guide (4) aligning inner further includes spacer pin (42) of the activity in pin hole (41), and can push or pull on
Spacer pin (42) separates spacer pin (42) end movable top in limiting slot (21) or with limiting slot (21)；The piston
Bar (2) is equipped with graduation mark；The limit sleeve (3) is that steel bushing cuts to be formed；Described limit sleeve (3) cross section is C-shaped, and
There is notch, limit sleeve (3) can be covered by notch on piston rod (2), and the limit hole (31) is located on front side of limit sleeve (3)
On the jacket wall of limit sleeve (3) left or right side；Several guidees (4) are axial equidistant uniformly distributed along piston rod (2).
2. a kind of hydraulic device with position-limit mechanism according to claim 1, it is characterised in that: the spacer pin (42)
On be fixed with retaining ring (43), spacer pin (42) rear end is fixed with internal screw thread interstage sleeve (44), guide (4) have external screw thread, further include
The compressed spring (45) on spacer pin (42) is covered, and compressed spring (45) both ends withstand on guide (4) end and interstage sleeve respectively
(44) bottom, and push retaining ring (43) to be against on cylinder barrel (1) inner wall, and spacer pin (42) end and limiting slot (21) point at this time
From, and spacer pin (42) can be pushed, withstand on spacer pin (42) end on limiting slot (21), and interstage sleeve (44) is made to be screwed onto guide
(4) on.
3. a kind of hydraulic device with position-limit mechanism according to claim 2, it is characterised in that: described pin hole (41) hole
Wall is equipped with seal groove, and seal groove is embedded with sealing ring (46) of the sealing shroud on spacer pin (42).
4. a kind of hydraulic device with position-limit mechanism according to claim 2, it is characterised in that: the spacer pin (42)
It is structure as a whole with retaining ring (43), and interstage sleeve (44) is screwed onto spacer pin (42) rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810640768.3A CN108757633B (en) | 2017-03-15 | 2017-03-15 | A kind of hydraulic device with position-limit 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 |
| CN201810640768.3A CN108757633B (en) | 2017-03-15 | 2017-03-15 | A kind of hydraulic device with position-limit 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 |
|---|---|
| CN108757633A CN108757633A (en) | 2018-11-06 |
| CN108757633B true CN108757633B (en) | 2019-11-22 |
Family
ID=59144703
Family Applications (3)
| 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 |
| 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 |
Family Applications After (2)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN108757633B (en) |
Families Citing this family (5)
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010087092A (en) * | 2000-03-03 | 2001-09-15 | 고지마 히로요시 | Cylinder, load port using it, and production system |
| 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 |
| CN104989699A (en) * | 2015-08-04 | 2015-10-21 | 山东同力液压装备有限公司 | Reinforced self-locking wind-power hydraulic cylinder |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN102221030B (en) * | 2011-06-17 | 2013-01-23 | 中联重科股份有限公司 | Hydro-cylinder assembly with adjustable stroke and pin inserting and drawing mechanism of positioning device |
| CN103851010B (en) * | 2012-12-06 | 2017-06-23 | 广东顺德普南气动科技有限公司 | Cylinder |
| CN103899595B (en) * | 2014-03-28 | 2016-03-09 | 哈尔滨工程大学 | One can arbitrary position locking type hydraulic cylinder |
| 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 |
| CN205559404U (en) * | 2016-04-12 | 2016-09-07 | 山东达睿智能设备股份有限公司 | High strength hydraulic pressure machinery |
| CN205503623U (en) * | 2016-04-12 | 2016-08-24 | 山东达睿智能设备股份有限公司 | Novel hydraulic pressure machinery |
| CN205991046U (en) * | 2016-07-26 | 2017-03-01 | 中石化石油机械股份有限公司压缩机分公司 | A kind of new adjustable clearance 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 |
| 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 CN201810640768.3A patent/CN108757633B/en active Active
- 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
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010087092A (en) * | 2000-03-03 | 2001-09-15 | 고지마 히로요시 | Cylinder, load port using it, and production system |
| 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 |
| CN104989699A (en) * | 2015-08-04 | 2015-10-21 | 山东同力液压装备有限公司 | Reinforced self-locking wind-power hydraulic cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108730259B (en) | 2020-05-01 |
| CN108757633A (en) | 2018-11-06 |
| CN106837920B (en) | 2018-09-25 |
| CN106837920A (en) | 2017-06-13 |
| CN108730259A (en) | 2018-11-02 |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20191025 Address after: 225600, Jiangsu Province, Gaoyou City, Yangzhou city town industrial concentration area Applicant after: Yangzhou Sanyuan Power Machinery Co., Ltd. Address before: 314501 No. 1 Houtoudui, Minhe Village, Wuzhen Town, Tongxiang City, Jiaxing City, Zhejiang Province Applicant before: Tongxiang City Wuzhen Runtong Jiaye Machinery Maintenance Center |
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