CN103851014A - Hydraulic-cylinder buffer - Google Patents
Hydraulic-cylinder buffer Download PDFInfo
- Publication number
- CN103851014A CN103851014A CN201210509784.1A CN201210509784A CN103851014A CN 103851014 A CN103851014 A CN 103851014A CN 201210509784 A CN201210509784 A CN 201210509784A CN 103851014 A CN103851014 A CN 103851014A
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- cavity
- buffer
- cylinder
- runner
- piston
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Abstract
The invention relates to a hydraulic-cylinder buffer comprising a hydraulic cylinder, a piston and a cylinder cover. The cylinder cover is fixedly connected with the hydraulic cylinder. The piston is fixedly connected with a piston rod. The hydraulic-cylinder buffer is characterized in that the piston is connected with a columnar buffer block; the cylinder cover is provided with a cylindrical cavity and a throttling hole; the outer diameter of the buffer block is slightly smaller than the inner diameter of the cavity; the throttling hole is communicated with the cavity; the buffer block is provided with an inner cavity, a first runner and a second runner, and the inner cavity is communicated with the cavity; the first runner and the second runner are communicated with the inner cavity and the cavity respectively. Compared with conventional hydraulic-cylinder annular-space throttling buffers, the hydraulic-cylinder buffer has the advantages of simple structure, good buffer effect, small hydraulic shock and stable operation.
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 adjustable 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 hydraulic cylinder buffer, comprise oil hydraulic cylinder, piston and the cylinder cap being fixedly connected with oil hydraulic cylinder, piston is fixedly connected with piston rod, it is characterized in that: described piston connects cylindricality buffer stopper, described cylinder cap has cylindrical cavity and throttle orifice, the external diameter of described buffer stopper is slightly less than the internal diameter of described cavity, described throttle orifice is communicated with described cavity, described buffer stopper has the inner chamber, first flow and the second runner that are communicated with described cavity, and described first flow and the second runner are communicated with respectively described inner chamber and cavity.
Further technological scheme is:
The axis of described first flow and the second runner is vertical with described inner chamber axis respectively.
Described first flow and the second runner are positioned at the same side of described buffer stopper.
Technique effect of the present invention is:
The oil hydraulic cylinder ring gap flow restricted buffer that the present invention is more traditional, 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.
Embodiment
See Fig. 1, 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 piston rod 1, and piston 3 connects cylindricality buffer stopper 4, and cylinder cap 5 has cylindrical cavity 6 and throttle orifice 7, the external diameter of buffer stopper 4 is slightly less than the internal diameter of cavity 6, throttle orifice 7 is communicated with cavity 6, and buffer stopper 4 has the inner chamber 8, first flow 9 and the second runner 10 that are communicated with cavity 6, first flow 9 and the second runner 10 communication with cavity 8 and cavity 6 respectively.
When the present invention works, in the time that piston rod 1 moves to cylinder cap 5 with piston 3, buffer stopper 4 enters after cylindrical cavity 6, between cavity 6 and piston 3, form buffering oil pocket, the fluid being closed can only be from the inner chamber of buffer stopper 48, in first flow 9, the second runner 10 and throttle orifice 7, flows out, therefore slowed down the motion speed of piston 3, reach the object of slowing down, in the fluid in simultaneous buffering oil pocket produces, pressed, realized buffering to resist the effect of inertial force and other external force.
Claims (3)
1. a hydraulic cylinder buffer, comprise oil hydraulic cylinder, piston and the cylinder cap being fixedly connected with oil hydraulic cylinder, piston is fixedly connected with piston rod, it is characterized in that: described piston connects cylindricality buffer stopper, described cylinder cap has cylindrical cavity and throttle orifice, the external diameter of described buffer stopper is slightly less than the internal diameter of described cavity, described throttle orifice is communicated with described cavity, described buffer stopper has the inner chamber, first flow and the second runner that are communicated with described cavity, and described first flow and the second runner are communicated with respectively described inner chamber and cavity.
2. according to hydraulic cylinder buffer claimed in claim 1, it is characterized in that: the axis of described first flow and the second runner is vertical with described inner chamber axis respectively.
3. according to hydraulic cylinder buffer claimed in claim 1, it is characterized in that: described first flow and the second runner are positioned at the same side of described buffer stopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210509784.1A CN103851014A (en) | 2012-11-30 | 2012-11-30 | Hydraulic-cylinder buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210509784.1A CN103851014A (en) | 2012-11-30 | 2012-11-30 | Hydraulic-cylinder buffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103851014A true CN103851014A (en) | 2014-06-11 |
Family
ID=50859041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210509784.1A Pending CN103851014A (en) | 2012-11-30 | 2012-11-30 | Hydraulic-cylinder buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103851014A (en) |
-
2012
- 2012-11-30 CN CN201210509784.1A patent/CN103851014A/en active Pending
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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 |