CN106151163A - A kind of hold down gag of short guide piston automatic compensation sealing - Google Patents
A kind of hold down gag of short guide piston automatic compensation sealing Download PDFInfo
- Publication number
- CN106151163A CN106151163A CN201610699006.1A CN201610699006A CN106151163A CN 106151163 A CN106151163 A CN 106151163A CN 201610699006 A CN201610699006 A CN 201610699006A CN 106151163 A CN106151163 A CN 106151163A
- Authority
- CN
- China
- Prior art keywords
- ring
- hold
- axle
- steel silk
- piston rod
- 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.)
- Pending
Links
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
-
- 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
- F15B15/1452—Piston sealings
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Fluid-Damping Devices (AREA)
Abstract
nullThe invention discloses the hold down gag of a kind of short guide piston automatic compensation sealing，It includes piston rod、Teflon seal、O、Butterfly spring，Back-up ring mounting groove it is machined with on piston rod，It is equipped with teflon seal、O、Disk spring，And compressed by axle-steel silk back-up ring，Axle-steel silk outer retainer is covered with hold-down ring，It is machined with rectangular channel on cylindrical in hold-down ring，It is machined with draw-in groove in the inner circle of hold-down ring，The bottom land of rectangular channel along the circumferential direction drills the small sircle hole of more than at least eight，In concentric holes after small sircle hole is corresponding with piston rod circular hole，Equipped with straight pin, hold-down ring is fixed together with piston rod in concentric holes，Concentric holes reserves a hole not installing straight pin additional，Band crotch axle-steel silk back-up ring is loaded in rectangular channel，This one end of axle-steel silk back-up ring buckle is just hooked in the reserved concentric holes not installing straight pin additional.The technical program delicate structure, slim and graceful, effectively reduce the larger space shared by helicitic texture.
Description
Technical field
The present invention relates to the hold down gag of a kind of short guide piston automatic compensation sealing, belong to hydraulic packing field, especially
It is applicable on the hydro-pneumatic spring of the Long travel that space is restricted and hydraulic cylinder use.
Background technology
For ensureing the piston seal long-term reliability in oil cylinder, as shown in Figure 1, Figure 2 and Figure 3, equipped with piston rod in cylinder barrel 4
3, there is piston 2 described piston rod one end, and piston is installed in cylinder bottom 1 position of cylinder barrel, equipped with guide ring 5 on the other end of piston rod
Being fastened with cylinder barrel 4 by bolt 7 and nut 6, existing piston seal position have employed disk spring 9, O 10 to polytetrafluoroethyl-ne
Alkene sealing member 11 carries out double-acting elastic compensation, then uses screw thread to be pressed disk spring and O by clamp nut 8
Tightly.This screw thread compressing structure causes piston seal portion structure length longer, seriously constrains the increasing of the effective travel of piston
Grow and cause the increase of hydro-pneumatic spring, length of oil cylinder and weight.
How developing sealing member hold down gag light and handy, space-saving to substitute existing screw thread hold down gag is ability
Field technique personnel's sustained improvement and the target of innovation.
Summary of the invention
The task of the present invention is to propose the hold down gag of a kind of short guide piston automatic compensation sealing.
The task of the present invention is done in such a way that it includes piston rod, teflon seal, O, butterfly-type bullet
Spring, it is characterised in that: it is machined with back-up ring mounting groove on piston rod, is equipped with teflon seal, O, disk spring,
And compressed by axle-steel silk back-up ring, described axle-steel silk outer retainer is covered with hold-down ring, the cylindrical in described hold-down ring adds
Work has rectangular channel, and the inner circle of hold-down ring is machined with draw-in groove, the bottom land of described rectangular channel along the circumferential direction drill at least eight with
On small sircle hole, in concentric holes after described small sircle hole is corresponding with piston rod circular hole, in concentric holes equipped with straight pin by hold-down ring with
Piston rod is fixed together, and described concentric holes reserves a hole not installing straight pin additional, loads band crotch in described rectangular channel
Axle-steel silk back-up ring, this one end of axle-steel silk back-up ring buckle is just hooked in the reserved concentric holes not installing straight pin additional.Roundlet
The quantity in hole with on piston rod arrange circular hole quantity identical, at the maximum gauge of described axle-steel silk back-up ring just with butterfly-type bullet
Contact at spring inner ring, described hold-down ring is provided with chamfering.Being machined with draw-in groove in the inner circle of described hold-down ring, axle-steel silk keeps off
Circle is just at effectively preventing axle-steel silk back-up ring from deviating from draw-in groove.
The present invention has the effect that, the technical program delicate structure, slim and graceful.Effectively reduce shared by helicitic texture
Larger space.Shorten the length at piston dress sealing member position, improve the movement travel of piston.Also apply be applicable to hydraulic pressure simultaneously
The structure optimization of cylinder field other products, alleviate the directions such as weight and make onboard system compact conformation, alleviate weight, system optimization.
Accompanying drawing explanation
Fig. 1 is prior art construction schematic diagram；Fig. 2 is the schematic enlarged-scale view at the I of Fig. 1；Fig. 3 is the structure at Fig. 2 IV
Enlarged drawing；Fig. 4 is the structural representation of the present invention；Fig. 5 is the schematic enlarged-scale view at Fig. 4 II；Fig. 6 is that the structure at III is amplified
Figure；Fig. 7 is buckle elastic spring structural representation.
Drawing illustrates: 1, cylinder is low, 2, piston, 3, piston rod, 4, cylinder barrel, 5, guide ring, 6, nut, 7, bolt, 8, compress
Nut, 9, butterfly spring, 10, O, 11, teflon seal, 12, hold-down ring, 13, buckle axle-steel silk back-up ring,
14, straight pin, 15, axle-steel silk back-up ring, 101, mounting groove, 102, small sircle hole, 103, piston rod circular hole, 104 rectangular channels,
105, draw-in groove, 201, chamfering.
Specific embodiment
Embodiment is described in detail in conjunction with the figures above, as it is shown in figure 5, be machined with back-up ring mounting groove 101 on piston rod 3, dress
It is furnished with teflon seal 11, O 10, disk spring 9, and is compressed by axle-steel silk back-up ring 15, described axle-steel
Silk outer retainer is covered with hold-down ring 12, and the cylindrical in described hold-down ring is machined with rectangular channel 104, and the inner circle of hold-down ring is processed
Draw-in groove 105, the bottom land of described rectangular channel is had along the circumferential direction to drill the small sircle hole 102 of more than at least eight, the quantity of small sircle hole
Identical with the circular hole quantity arranged on piston rod, furtherly, in same after described small sircle hole 102 is corresponding with piston rod circular hole 103
Central hole, is fixed together hold-down ring with piston rod equipped with straight pin 14 in concentric holes, and described concentric holes reserves one and is not added with
The hole of dress straight pin, loads band crotch axle-steel silk back-up ring 13 in described rectangular channel, this one end of axle-steel silk back-up ring buckle is firm
It is hooked in well in the reserved concentric holes not installing straight pin additional, thus realizes teflon seal, O, disk spring
Compress.
Just contact with at butterfly spring 9 inner ring at the maximum gauge of described axle-steel silk back-up ring 15.
It is provided with chamfering 201, it is therefore an objective to after disk spring compression, provide deformation space on described hold-down ring 12.
After described small sircle hole 102 is corresponding with piston rod circular hole 103 assembling straight pin 14 be matched in clearance, it is therefore an objective to for
After when safeguarding straight pin can take out smoothly in hole, be convenient for changing sealing member.
Being machined with draw-in groove 105 in the inner circle of described hold-down ring 12, axle-steel silk back-up ring 15, can be effective just in draw-in groove
Prevent axle-steel silk back-up ring from deviating from.
It is symmetrically installed so that above-mentioned described technical scheme is upper and lower at piston rod.
Claims (3)
1. a hold down gag for short guide piston automatic compensation sealing, it includes piston rod, teflon seal, O type
Circle, butterfly spring, it is characterised in that: be machined with back-up ring mounting groove on piston rod, be equipped with teflon seal, O,
Disk spring, and compressed by axle-steel silk back-up ring, described axle-steel silk outer retainer is covered with hold-down ring, in described hold-down ring
Be machined with rectangular channel on cylindrical, the inner circle of hold-down ring be machined with draw-in groove, the bottom land of described rectangular channel along the circumferential direction drill to
The small sircle hole of few more than eight, in concentric holes after described small sircle hole is corresponding with piston rod circular hole, will equipped with straight pin in concentric holes
Hold-down ring is fixed together with piston rod, and described concentric holes reserves a hole not installing straight pin additional, and described rectangular channel is built-in
Entering band crotch axle-steel silk back-up ring, this one end of axle-steel silk back-up ring buckle is just hooked in the reserved concentric holes not installing straight pin additional
In.
The hold down gag of a kind of short guide piston automatic compensation sealing the most as claimed in claim 1, it is characterised in that: small sircle hole
Quantity with on piston rod arrange circular hole quantity identical, at the maximum gauge of described axle-steel silk back-up ring just with butterfly spring
Contact at inner ring, described hold-down ring is provided with chamfering.
The hold down gag of a kind of short guide piston automatic compensation sealing the most as claimed in claim 1 or 2, it is characterised in that: institute
Stating and be machined with draw-in groove in the inner circle of hold-down ring, axle-steel silk back-up ring is de-just at effectively preventing axle-steel silk back-up ring in draw-in groove
Go out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610699006.1A CN106151163A (en) | 2016-08-22 | 2016-08-22 | A kind of hold down gag of short guide piston automatic compensation sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610699006.1A CN106151163A (en) | 2016-08-22 | 2016-08-22 | A kind of hold down gag of short guide piston automatic compensation sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106151163A true CN106151163A (en) | 2016-11-23 |
Family
ID=57341779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610699006.1A Pending CN106151163A (en) | 2016-08-22 | 2016-08-22 | A kind of hold down gag of short guide piston automatic compensation sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106151163A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605864A (en) * | 2017-10-20 | 2018-01-19 | 新乡市华航航空液压设备有限公司 | A kind of New temperature lock structure signalling means |
| CN107630671A (en) * | 2017-11-03 | 2018-01-26 | 苏州优力克流体控制科技有限公司 | A kind of sealing ring |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6000516A (en) * | 1997-03-14 | 1999-12-14 | Mannesmann Sachs Ag | Motor vehicle an hydraulic cylinder, such as to actuate a clutch, having a quick fastener for mounting the hydraulic cylinder to a housing |
| JP2002213410A (en) * | 2001-01-12 | 2002-07-31 | Smc Corp | Fluid pressure cylinder with locking device |
| CN202082195U (en) * | 2011-06-07 | 2011-12-21 | 临沂金利液压科技有限公司 | Guide device of hydraulic cylinder |
| CN202612615U (en) * | 2012-05-31 | 2012-12-19 | 湖北航天技术研究院特种车辆技术中心 | Compensation sealing structure |
| CN203176058U (en) * | 2013-04-09 | 2013-09-04 | 东风汽车公司 | Oil cylinder front cover limiting mechanism |
| CN203189389U (en) * | 2013-03-19 | 2013-09-11 | 厦门银华机械有限公司 | Fixing structure of hydraulic oil cylinder guide sleeves and baffle rings |
| CN204284065U (en) * | 2014-11-19 | 2015-04-22 | 泸州市巨力液压有限公司 | Sealing locking hydraulic jack |
| CN204784304U (en) * | 2015-07-10 | 2015-11-18 | 温州市东启汽车零部件制造有限公司 | Clutch master cylinder of integral accumulator |
| CN105298976A (en) * | 2015-10-12 | 2016-02-03 | 江苏恒立高压油缸股份有限公司 | Crusher cylinder |
| CN105298975A (en) * | 2015-10-12 | 2016-02-03 | 江苏恒立高压油缸股份有限公司 | Pillared shoe cylinder |
| CN105822620A (en) * | 2015-01-07 | 2016-08-03 | 富阳通力机械制造有限公司 | Stroke limiting oil cylinder with groove for jack |
| CN205937293U (en) * | 2016-08-22 | 2017-02-08 | 新乡市华航航空液压设备有限公司 | Sealed closing device of short guide piston automatic compensation |
-
2016
- 2016-08-22 CN CN201610699006.1A patent/CN106151163A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6000516A (en) * | 1997-03-14 | 1999-12-14 | Mannesmann Sachs Ag | Motor vehicle an hydraulic cylinder, such as to actuate a clutch, having a quick fastener for mounting the hydraulic cylinder to a housing |
| JP2002213410A (en) * | 2001-01-12 | 2002-07-31 | Smc Corp | Fluid pressure cylinder with locking device |
| CN202082195U (en) * | 2011-06-07 | 2011-12-21 | 临沂金利液压科技有限公司 | Guide device of hydraulic cylinder |
| CN202612615U (en) * | 2012-05-31 | 2012-12-19 | 湖北航天技术研究院特种车辆技术中心 | Compensation sealing structure |
| CN203189389U (en) * | 2013-03-19 | 2013-09-11 | 厦门银华机械有限公司 | Fixing structure of hydraulic oil cylinder guide sleeves and baffle rings |
| CN203176058U (en) * | 2013-04-09 | 2013-09-04 | 东风汽车公司 | Oil cylinder front cover limiting mechanism |
| CN204284065U (en) * | 2014-11-19 | 2015-04-22 | 泸州市巨力液压有限公司 | Sealing locking hydraulic jack |
| CN105822620A (en) * | 2015-01-07 | 2016-08-03 | 富阳通力机械制造有限公司 | Stroke limiting oil cylinder with groove for jack |
| CN204784304U (en) * | 2015-07-10 | 2015-11-18 | 温州市东启汽车零部件制造有限公司 | Clutch master cylinder of integral accumulator |
| CN105298976A (en) * | 2015-10-12 | 2016-02-03 | 江苏恒立高压油缸股份有限公司 | Crusher cylinder |
| CN105298975A (en) * | 2015-10-12 | 2016-02-03 | 江苏恒立高压油缸股份有限公司 | Pillared shoe cylinder |
| CN205937293U (en) * | 2016-08-22 | 2017-02-08 | 新乡市华航航空液压设备有限公司 | Sealed closing device of short guide piston automatic compensation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605864A (en) * | 2017-10-20 | 2018-01-19 | 新乡市华航航空液压设备有限公司 | A kind of New temperature lock structure signalling means |
| CN107630671A (en) * | 2017-11-03 | 2018-01-26 | 苏州优力克流体控制科技有限公司 | A kind of sealing ring |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161123 |