CN106438573B - taper sleeve type mechanical locking oil cylinder - Google Patents
taper sleeve type mechanical locking oil cylinder Download PDFInfo
- Publication number
- CN106438573B CN106438573B CN201610500513.8A CN201610500513A CN106438573B CN 106438573 B CN106438573 B CN 106438573B CN 201610500513 A CN201610500513 A CN 201610500513A CN 106438573 B CN106438573 B CN 106438573B
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- China
- Prior art keywords
- piston
- cylinder
- cone
- vertex
- cylinder barrel
- 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
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
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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
- F15B15/1414—Characterised by the construction of the motor unit of the straight-cylinder type with non-rotatable piston
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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
-
- 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
- F15B2215/00—Fluid-actuated devices for displacing a member from one position to another
- F15B2215/30—Constructional details thereof
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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 discloses a kind of taper sleeve type mechanical locking oil cylinders, including cylinder barrel, cylinder cap, guide sleeve, nut, piston and piston rod, further include the vertex of a cone, cu bearing liner and tapered sleeve；Piston bush is set to the outer rim of piston rod, and the hindfoot portion of cylinder barrel passes through piston and cylinder cap is connected, and the front section of cylinder barrel is arranged between nut and guide sleeve；The vertex of a cone is connect with the rear end of piston and piston rod, and tapered sleeve is sheathed on the outer rim of the vertex of a cone, and the interference fit of the hindfoot portion in the mounting groove opened up on tapered sleeve outer wall and with cylinder barrel is arranged in cu bearing liner；Cylinder cap is equipped with the first hydraulic fluid port extended radially inward from its outer wall, is equipped with the built-in oil cylinder being in fluid communication with the first hydraulic fluid port in the vertex of a cone；The middle portion of cylinder barrel is arranged with the second hydraulic fluid port extended radially inward；Sealing element is respectively equipped between piston and cylinder barrel, between cylinder cap and cylinder barrel, between piston and piston rod, between guide sleeve and piston rod and between guide sleeve and cylinder barrel.Operation of the present invention is simple, good airproof performance, reliable working performance.
Description
Technical field
The present invention relates to a kind of taper sleeve type mechanical locking oil cylinders.
Background technique
Hydraulic cylinder is that hydraulic energy is changed into mechanical energy, does straight reciprocating motion（Or pendulum motion）Hydraulic execution
Element, structure is simple, is generally made of cylinder barrel, cylinder cap, guide sleeve, nut, piston and piston rod.Hydraulic cylinder work can
It leans on, when using it to realize reciprocating motion, deceleration device can be removed from, and there is no drive gap, movement is steady, therefore in various machines
It is used widely in the hydraulic system of tool.However, existing oil cylinder have it is complicated for operation, sealing performance is not good, locking when piston
Bar can generate the shortcomings that axial displacement.
Summary of the invention
The object of the present invention is to provide a kind of taper sleeve type mechanical locking oil cylinder, with solve complicated for operation, sealing performance is not good,
Piston rod can lead to the problem of axial displacement when locking.
In order to solve the above technical problems, the present invention provides a kind of taper sleeve type mechanical locking oil cylinder, including cylinder barrel, cylinder cap, lead
It further include the vertex of a cone, cu bearing liner and tapered sleeve to set, nut, piston and piston rod；Piston bush is set to the outer rim of piston rod, cylinder barrel
Hindfoot portion passes through piston and cylinder cap is connected, and the front section of cylinder barrel is arranged between nut and guide sleeve；The vertex of a cone and piston and
The rear end of piston rod connects, and tapered sleeve is sheathed on the outer rim of the vertex of a cone, and cu bearing liner is arranged in the mounting groove opened up on tapered sleeve outer wall
And it is interference fitted with the hindfoot portion of cylinder barrel；Cylinder cap is equipped with the first hydraulic fluid port extended radially inward from its outer wall, sets in the vertex of a cone
There is the built-in oil cylinder being in fluid communication with the first hydraulic fluid port, and the cross-sectional area of built-in oil cylinder is greater than the area of the small end face of the vertex of a cone；Cylinder
The middle portion of cylinder is arranged with the second hydraulic fluid port extended radially inward；Between piston and cylinder barrel, between cylinder cap and cylinder barrel, piston and work
Sealing element is respectively equipped between stopper rod, between guide sleeve and piston rod and between guide sleeve and cylinder barrel.
Further, connected between the first hydraulic fluid port and built-in oil cylinder by the first oil duct being sequentially communicated and the second oil duct fluid
It is logical.
Further, which further includes the earrings connecting with the front end of piston rod.
Further, earrings is connect by nut with piston rod.
Further, earrings is equipped with lubricating cup.
Further, it is equipped with the first screw between the vertex of a cone and piston rod, and is equipped between adjustment between the first screw and the vertex of a cone
Away from.
Further, the second screw is equipped between the vertex of a cone and piston.
Further, third screw is equipped between piston and piston rod.
Beneficial effects of the present invention are：
1, easy to operate, enter hydraulic oil from the first hydraulic fluid port, enters built-in oil cylinder through the first, second oil duct, work as pressure
When reaching certain value, tapered sleeve Forward is pushed, tapered sleeve restores flexible deformation, and gap, oil cylinder unlock are formed between cu bearing liner and cylinder barrel
Starting（It is unloaded）, piston rod forward extends out；Enter hydraulic oil from the second hydraulic fluid port, piston rod retracts backward, and piston rod returns to end
End, upper cylinder cover is pushed up in the rear end of the vertex of a cone at this time, and outer cone face contact tapered sleeve inner conical surface, when oil pressure is raised to certain value, tapered sleeve is produced
Raw flexible deformation, cu bearing liner is held out against on the inner wall of cylinder barrel, oil cylinder locking.
2, cylinder barrel inner wall will not be damaged, sealing element will not be damaged, there is good sealing performance.
3, after locking, piston rod will not generate axial displacement, keep working performance more reliable.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of the invention.
Wherein：1, the vertex of a cone；2, cu bearing liner；3, tapered sleeve；4, piston；5, cylinder barrel；6, piston rod；7, cylinder cap；8, the first screw；
9, first seal；10, the second screw；12, second seal；13, the first guide sleeve；14, third sealing element；15, third spiral shell
Nail；16, the second guide sleeve；17, the 4th sealing element；18, the 5th sealing element；19, the 6th sealing element；20, the 7th sealing element；21,
Nut；22, nut；23, lubricating cup；24, earrings；A, the first hydraulic fluid port；B, the second hydraulic fluid port；C, the first oil duct；D, the second oil duct；E, interior
Set oil cylinder.
Specific embodiment
A specific embodiment of the invention is described below, in order to facilitate understanding by those skilled in the art this hair
It is bright, it should be apparent that the present invention is not limited to the ranges of specific embodiment, for those skilled in the art,
As long as various change is in the spirit and scope of the present invention that the attached claims limit and determine, these variations are aobvious and easy
See, all are using the innovation and creation of present inventive concept in the column of protection.
Taper sleeve type mechanical locking oil cylinder as shown in Figure 1, including cylinder barrel 5, cylinder cap 7, the second guide sleeve 16, nut 21, work
Plug 4 and piston rod 6, further include the vertex of a cone 1, cu bearing liner 2 and tapered sleeve 3.Wherein, piston 4 is sheathed on the outer rim of piston rod 6, cylinder barrel 5
Hindfoot portion passes through piston 4 and cylinder cap 7 is connected, and the front section of cylinder barrel 5 is arranged between nut 21 and the second guide sleeve 16.Cone
Top 1 is connect with the rear end of piston 4 and piston rod 6, and tapered sleeve 3 is sheathed on the outer rim of the vertex of a cone 1, and cu bearing liner 2 is arranged in 3 outer wall of tapered sleeve
On be interference fitted in the mounting groove that opens up and with the inner wall of 5 hindfoot portion of cylinder barrel.Cylinder cap 7 is equipped with radially to be prolonged from its outer wall
The the first hydraulic fluid port A stretched, the vertex of a cone 1 is interior to be equipped with the first oil duct C, the second oil duct D and the built-in oil cylinder E being sequentially communicated with the first hydraulic fluid port A,
And the cross-sectional area of built-in oil cylinder E be greater than the vertex of a cone 1 small end face area, when pressure oil between built-in oil cylinder E and the vertex of a cone 1 shape
At pressure difference, moved in order to which the vertex of a cone 1 unlocks.The middle portion of cylinder barrel 5 is arranged with the second hydraulic fluid port B extended radially inward.
In addition, being equipped with sealing element between piston 4 and cylinder barrel 5（That is second seal 12 and third sealing element 14）, cylinder cap 7 with
Sealing element is equipped between cylinder barrel 5（That is first seal 9）, sealing element is equipped between piston 4 and piston rod 6（That is the 4th sealing element
14）, sealing element is equipped between the second guide sleeve 16 and piston rod 6（That is the 5th sealing element 18 and the 7th sealing element 20）, second leads
Sealing element is equipped between 16 and cylinder barrel 5 to covering（That is the 6th sealing element 19）, sealing element is equipped between nut 21 and piston rod 6（I.e.
8th sealing element 20）, it is equipped with the first screw 8 between the vertex of a cone 1 and piston rod 6, the second screw 10 is equipped between the vertex of a cone 1 and piston 4,
Third screw 15 is equipped between piston 4 and piston rod 6.Also, adjustment spacing L is equipped between the first screw 8 and the vertex of a cone 1, so as to
In 1 activity of the vertex of a cone.
In preferred embodiment shown in Fig. 1, oil cylinder further includes the ear being connect by nut 22 with the front end of piston rod 6
Ring 24 is additionally provided with lubricating cup 23 on earrings 24.
Working principle of the present invention is as follows：
Hydraulic oil enters from the first hydraulic fluid port A, enters built-in oil cylinder E through first, second oil duct C, D, when pressure reaches certain
Value（Such as 4-8MPa）When, push tapered sleeve 3 to move forward, tapered sleeve 3 restores flexible deformation, forms gap between cu bearing liner 2 and cylinder barrel 5, oil
Cylinder unlock starting（It is unloaded）, piston rod 6 forward extends out；Another hydraulic oil enters from the second hydraulic fluid port B, and piston rod 6 retracts simultaneously backward
End is returned to, upper cylinder cover 7, the inner conical surface of outer cone face contact tapered sleeve 3, when oil pressure is raised to centainly are pushed up in the rear end of the vertex of a cone 1 at this time
Value（Such as 4-8MPa）When, tapered sleeve 3 generates flexible deformation, cu bearing liner 2 is held out against on the inner wall of cylinder barrel 5, oil cylinder locking, coupling mechanism force
About 11800N.
Claims (6)
1. a kind of taper sleeve type mechanical locking oil cylinder, including cylinder barrel, cylinder cap, guide sleeve, nut, piston and piston rod, feature exist
In further including the vertex of a cone, cu bearing liner and tapered sleeve；
The piston bush is set to the outer rim of piston rod, and the hindfoot portion of the cylinder barrel passes through piston and the cylinder cap is connected, described
The front section of cylinder barrel is arranged between nut and guide sleeve；
The vertex of a cone is connect with the rear end of the piston and piston rod, and the first screw is equipped between the vertex of a cone and piston rod,
And first screw and the vertex of a cone carry out clearance fit and connect to achieve the purpose that it is able to carry out spacing adjusting；The tapered sleeve is sheathed on
The outer rim of the vertex of a cone, copper shaft watt is arranged in the mounting groove opened up on the tapered sleeve outer wall and the hindfoot portion with the cylinder barrel
Interference fit；
The cylinder cap is equipped with the first hydraulic fluid port extended radially inward from its outer wall, is equipped with and first hydraulic fluid port in the vertex of a cone
The built-in oil cylinder being in fluid communication, and the cross-sectional area of the built-in oil cylinder is greater than the area of the small end face of the vertex of a cone；Described
It is in fluid communication between one hydraulic fluid port and the built-in oil cylinder by the first oil duct being sequentially communicated and the second oil duct；
The middle portion of the cylinder barrel is arranged with the second hydraulic fluid port extended radially inward；
Between the piston and cylinder barrel, between the cylinder cap and cylinder barrel, between the piston and piston rod, the guide sleeve and work
Sealing element is respectively equipped between stopper rod and between the guide sleeve and cylinder barrel.
2. taper sleeve type mechanical locking oil cylinder according to claim 1, which is characterized in that the oil cylinder further includes and piston rod
The earrings of front end connection.
3. taper sleeve type mechanical locking oil cylinder according to claim 2, which is characterized in that the earrings passes through nut and piston
Bar connection.
4. taper sleeve type mechanical locking oil cylinder according to claim 2, which is characterized in that the earrings is equipped with lubricating cup.
5. taper sleeve type mechanical locking oil cylinder according to claim 1, which is characterized in that be equipped between the vertex of a cone and piston
Second screw.
6. taper sleeve type mechanical locking oil cylinder according to claim 1, which is characterized in that the piston and the piston rod it
Between be equipped with third screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610500513.8A CN106438573B (en) | 2016-06-30 | 2016-06-30 | taper sleeve type mechanical locking oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610500513.8A CN106438573B (en) | 2016-06-30 | 2016-06-30 | taper sleeve type mechanical locking oil cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106438573A CN106438573A (en) | 2017-02-22 |
| CN106438573B true CN106438573B (en) | 2018-11-20 |
Family
ID=58183727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610500513.8A Active CN106438573B (en) | 2016-06-30 | 2016-06-30 | taper sleeve type mechanical locking oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106438573B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3470793A (en) * | 1965-04-24 | 1969-10-07 | Siegfried Herbert Erwin Hanche | Locking device for hydraulic cylinder |
| EP0103555B1 (en) * | 1982-08-20 | 1986-02-26 | Atlas Copco Aktiebolag | Piston locking device |
| DE3740385A1 (en) * | 1987-11-28 | 1989-06-08 | Roemheld A Gmbh & Co Kg | Locking of the piston rod within a cylinder |
| DE19821343A1 (en) * | 1998-05-13 | 1999-12-02 | Estebanez Eva Garcia | Pneumatic brake cylinder with piston and piston rod |
| CN202091294U (en) * | 2011-06-13 | 2011-12-28 | 天津市四方欧业液压机械有限公司 | Locking device for disc spring of oil cylinder piston |
| CN102943786A (en) * | 2012-12-11 | 2013-02-27 | 湖南特力液压有限公司 | Hydraulic cylinder |
| CN104454757A (en) * | 2014-11-12 | 2015-03-25 | 三一重型装备有限公司 | Hydraulic cylinder and cylinder cover structure thereof |
| CN205908561U (en) * | 2016-06-30 | 2017-01-25 | 泸州长信液压机械制造有限公司 | Hydro -cylinder is locked to taper sleeve formula machinery |
-
2016
- 2016-06-30 CN CN201610500513.8A patent/CN106438573B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3470793A (en) * | 1965-04-24 | 1969-10-07 | Siegfried Herbert Erwin Hanche | Locking device for hydraulic cylinder |
| EP0103555B1 (en) * | 1982-08-20 | 1986-02-26 | Atlas Copco Aktiebolag | Piston locking device |
| DE3740385A1 (en) * | 1987-11-28 | 1989-06-08 | Roemheld A Gmbh & Co Kg | Locking of the piston rod within a cylinder |
| DE19821343A1 (en) * | 1998-05-13 | 1999-12-02 | Estebanez Eva Garcia | Pneumatic brake cylinder with piston and piston rod |
| CN202091294U (en) * | 2011-06-13 | 2011-12-28 | 天津市四方欧业液压机械有限公司 | Locking device for disc spring of oil cylinder piston |
| CN102943786A (en) * | 2012-12-11 | 2013-02-27 | 湖南特力液压有限公司 | Hydraulic cylinder |
| CN104454757A (en) * | 2014-11-12 | 2015-03-25 | 三一重型装备有限公司 | Hydraulic cylinder and cylinder cover structure thereof |
| CN205908561U (en) * | 2016-06-30 | 2017-01-25 | 泸州长信液压机械制造有限公司 | Hydro -cylinder is locked to taper sleeve formula machinery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106438573A (en) | 2017-02-22 |
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| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: Group 3, Caoxi Village, Linyu Town, Jiangyang District, Luzhou, Sichuan Province 646002 Patentee after: Sichuan Changxin Hydraulic Machinery Manufacturing Co.,Ltd. Address before: Group 3, Caoxi Village, Linyu Town, Jiangyang District, Luzhou, Sichuan Province 646002 Patentee before: LUZHOU CHANGXIN HYDRAULIC MACHINERY MANUFACTURING Co.,Ltd. |