CN103851027A - Composite throttle buffer of hydraulic cylinder - Google Patents
Composite throttle buffer of hydraulic cylinder Download PDFInfo
- Publication number
- CN103851027A CN103851027A CN201210510051.XA CN201210510051A CN103851027A CN 103851027 A CN103851027 A CN 103851027A CN 201210510051 A CN201210510051 A CN 201210510051A CN 103851027 A CN103851027 A CN 103851027A
- Authority
- CN
- China
- Prior art keywords
- hydraulic cylinder
- piston
- buffer
- convex
- oil hydraulic
- 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
Images
Landscapes
- Actuator (AREA)
Abstract
The invention relates to a composite throttle buffer of a hydraulic cylinder. The composite throttle buffer of the hydraulic cylinder comprises a hydraulic cylinder, a piston and a cylinder cover fixedly connected to the hydraulic cylinder, the piston is fixedly connected to a plunger, wherein the cylinder cover includes a throttle orifice, and the throttle orifice is communicated with an inner cavity of the hydraulic cylinder; the piston comprises an inner cavity provided with a side hole; a convex buffer block is connected to the inner cavity of the piston; the convex buffer block is connected to an inner cavity wall of the piston through a spring, and a convex part of the convex buffer block stretches out of the side hole; the diameter of the convex part is smaller than that of the side hole of the piston. Compared with the traditional hydraulic cylinder annular throttle buffer, the composite throttle buffer of the hydraulic cylinder provided by the invention adopts a double buffer structure composed of the spring and the annulus, and has the advantages of simple structure, good buffer effect, small hydraulic impact and stable running.
Description
Technical field
The present invention relates to hydraulic equipment field, particularly the buffer of oil hydraulic cylinder.
Background technique
Oil hydraulic cylinder, in the time doing high-speed motion to stroke terminal, tends to occur violent mechanical collision.In addition, the motion of piston cut also usually can cause the water hammer of pipeline, thereby produces very large impact and noise.The generation of above mechanical shock, not only affects the service behaviour of machinery, and can damage other elements of oil hydraulic cylinder and hydraulic system, has very large danger.In oil hydraulic cylinder inside, damping device is set for preventing or alleviating this impact shock, can plays to a certain extent buffer function.The general damping device adopting is ring gap flow restricted buffer, and the shortcoming of traditional ring gap flow restricted buffer is that cushioning effect is not good, and hydraulic shock is large etc.
Summary of the invention
The applicant, for the above-mentioned shortcoming of traditional hydraulic pressure ring gap flow restricted buffer, studies and improves, and a kind of combined type throttling buffer of oil hydraulic cylinder is provided, and it has simple in structure, good buffer effect, the feature that hydraulic shock is little.
In order to solve the problems of the technologies described above, the present invention adopts following technological scheme:
A kind of combined type throttling buffer of oil hydraulic cylinder, comprise oil hydraulic cylinder, piston and the cylinder cap being fixedly connected with oil hydraulic cylinder, piston is fixedly connected with plunger, it is characterized in that: described cylinder cap has throttle orifice, described throttle orifice is communicated with described oil hydraulic cylinder inner chamber, described piston has the inner chamber with side opening, in described piston cavity, connect convex buffer stopper, described convex buffer stopper is connected with the internal chamber wall of described piston by spring, the protuberance of described convex buffer stopper stretches out described side opening, and the diameter of protuberance is less than described piston side bore dia.
Technique effect of the present invention is:
The oil hydraulic cylinder ring gap flow restricted buffer that the present invention is more traditional, adopts spring and annular space double buffering structure, and it has advantages of simple in structure, good buffer effect, hydraulic shock is little and operate steadily.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is another structural representation of the present invention.
Embodiment
See Fig. 1, Fig. 2, the present invention includes oil hydraulic cylinder 2, piston 3 and the cylinder cap 5 being fixedly connected with oil hydraulic cylinder 2, piston 3 is fixedly connected with plunger 1, cylinder cap 5 has throttle orifice 7, throttle orifice 7 is communicated with oil hydraulic cylinder inner chamber 4, piston 3 has the inner chamber 12 with side opening 9, the interior connection convex of piston cavity 12 buffer stopper 10, convex buffer stopper 10 is connected with the internal chamber wall of piston 3 by spring 11, and the protuberance 8 of convex buffer stopper 10 stretches out side opening 9, the diameter of protuberance 8 is less than the diameter of piston side opening 9, forms annular space 6 between protuberance 8 and gaging hole 9.
When the present invention works, in the time that plunger 1 moves to cylinder cap 4 with piston 3, the compressed formation buffering of inner chamber of cylinder block 4 oil pocket, the fluid being closed promotes convex buffer stopper 10 to left movement, part fluid enters piston cavity 12 from annular space 6, another part fluid flows out from throttle orifice 7, slow down the motion speed of piston 3, reach the object of slowing down, fluid in simultaneous buffering oil pocket is pressed in producing, realize buffering with the effect of opposing inertial force and other external force, the present invention adopts the elasticity of convex buffer stopper 10 and the double buffering structure that annular space cushions and throttle orifice 7 cushions, greatly improve the stability that piston 3 moves.
Claims (1)
1. the combined type throttling buffer of an oil hydraulic cylinder, comprise oil hydraulic cylinder, piston and the cylinder cap being fixedly connected with oil hydraulic cylinder, piston is fixedly connected with plunger, it is characterized in that: described cylinder cap has throttle orifice, described throttle orifice is communicated with described oil hydraulic cylinder inner chamber, described piston has the inner chamber with side opening, in described piston cavity, connect convex buffer stopper, described convex buffer stopper is connected with the internal chamber wall of described piston by spring, the protuberance of described convex buffer stopper stretches out described side opening, and the diameter of protuberance is less than described piston side bore dia.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210510051.XA CN103851027A (en) | 2012-11-30 | 2012-11-30 | Composite throttle buffer of hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210510051.XA CN103851027A (en) | 2012-11-30 | 2012-11-30 | Composite throttle buffer of hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103851027A true CN103851027A (en) | 2014-06-11 |
Family
ID=50859054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210510051.XA Pending CN103851027A (en) | 2012-11-30 | 2012-11-30 | Composite throttle buffer of hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103851027A (en) |
-
2012
- 2012-11-30 CN CN201210510051.XA patent/CN103851027A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104564908A (en) | Buffer hydraulic cylinder | |
| CN104595281A (en) | Cushion cylinder | |
| CN205669520U (en) | buffering structure of hydraulic cylinder | |
| CN104565169A (en) | Damper | |
| CN103851017A (en) | Hydraulic-cylinder annular-space buffer | |
| CN201363385Y (en) | Damper | |
| CN104121251A (en) | Buffering device for hydraulic cylinder | |
| CN103851026A (en) | Porous buffer of hydraulic cylinder | |
| CN203394921U (en) | Plunger hydraulic cylinder | |
| CN103851022A (en) | Hydraulic buffer | |
| CN202991708U (en) | Combined throttle buffer of hydraulic cylinder | |
| CN102996570A (en) | Single-action double-graded hydraulic cylinder and engineering machine | |
| CN103851027A (en) | Composite throttle buffer of hydraulic cylinder | |
| CN201636257U (en) | Double-working condition sealing ring piston type air damper | |
| CN203939810U (en) | A kind of oil hydraulic cylinder of built-in variable throttling damping device | |
| CN103851021A (en) | Hydraulic buffer | |
| CN104074836A (en) | High speed hydraulic cylinder buffer mechanism | |
| CN103851023A (en) | Groove buffer of hydraulic cylinder | |
| CN103851024A (en) | Groove buffer of hydraulic cylinder | |
| CN103851015A (en) | Hydraulic-cylinder buffer | |
| CN206092780U (en) | Shock absorber hydraulic cushion system - structure | |
| CN201391511Y (en) | Hydraulic cylinder cushioning device | |
| CN103851016A (en) | Hydraulic-cylinder annular-space buffer | |
| CN201747847U (en) | Damper with gradually increasing damping rate | |
| CN203743118U (en) | Hydraulic cylinder with buffering structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140611 |