CN103851022A - Hydraulic buffer - Google Patents
Hydraulic buffer Download PDFInfo
- Publication number
- CN103851022A CN103851022A CN201210509824.2A CN201210509824A CN103851022A CN 103851022 A CN103851022 A CN 103851022A CN 201210509824 A CN201210509824 A CN 201210509824A CN 103851022 A CN103851022 A CN 103851022A
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- China
- Prior art keywords
- fixedly connected
- buffer
- ring
- piston
- hydraulic
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- 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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Abstract
The invention relates to a hydraulic buffer. The hydraulic buffer comprises a hydraulic cylinder, a piston and a cylinder cover fixedly connected to the hydraulic cylinder, the piston is fixedly connected to a piston rod, wherein the cylinder cover comprises a cylindrical cavity and a throttle orifice, the throttle orifice is communicated with the cavity, the piston is fixedly connected to a buffer ring; the buffer ring is fixedly connected to a blocking ring; the blocking ring is in sliding connection with the piston rod; the end part of the piston rod is fixedly connected to a baffle; the diameter of an outer ring of the baffle is smaller than the inside diameter of the hydraulic cavity. Compared with the traditional throttle buffer of a hydraulic cylinder, the hydraulic buffer provided by the invention adopts a compression structure of the buffer ring and the throttling and buffer actions of the throttle orifice, and has the advantages of 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 hydraulic bjuffer 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 bjuffer, 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 cylinder cap has cylindrical cavity and throttle orifice, described throttle orifice is communicated with described cavity, described piston is fixedly connected with buffering ring, and described buffering ring is fixedly connected with baffle ring, and described baffle ring and described piston rod are slidably connected, the end of described piston rod is fixedly connected with baffle plate, and the race diameter of described baffle plate is less than the internal diameter of described cylindrical cavity.
Technique effect of the present invention is:
The oil hydraulic cylinder throttling buffer that the present invention is more traditional, adopts the compression structure of buffering ring and the throttling buffering effect of throttle orifice, and it has advantages of good buffer effect, hydraulic shock is little and operate steadily.
Brief description of the drawings
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 piston rod 1, it is characterized in that: described cylinder cap 2 has cylindrical cavity 8 and throttle orifice 9, described throttle orifice 9 is communicated with described cavity 8, described piston 3 is fixedly connected with buffering ring 4, described buffering ring 4 is fixedly connected with baffle ring 6, and described baffle ring 6 is slidably connected with described piston rod 1, and the end of described piston rod 1 is fixedly connected with baffle plate 7, the race diameter of described baffle plate 7 is less than the internal diameter of described cylindrical cavity 8, and baffle plate and cavity are shown in formation annular space 10.
When the present invention works, in the time that piston rod 1 promotes piston 3 and moves to cylinder cap 5, cylindrical cavity 8 forms buffering oil pocket, oil pressure promotes baffle ring 6 compresses buffering ring 4, between baffle ring 6 and baffle plate 7, form cavity 11, the fluid part being closed is directly got rid of from throttle orifice 9, another part is from getting rid of from throttle orifice 9 through annular space 10 and cavity 11, therefore slowed down the motion speed of piston 3, reach the object of slowing down, fluid in simultaneous buffering oil pocket is pressed in producing, and realizes buffering to resist the effect of inertial force and other external force.
Claims (1)
1. a hydraulic bjuffer, 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 cylinder cap has cylindrical cavity and throttle orifice, described throttle orifice is communicated with described cavity, described piston is fixedly connected with buffering ring, and described buffering ring is fixedly connected with baffle ring, and described baffle ring and described piston rod are slidably connected, the end of described piston rod is fixedly connected with baffle plate, and the race diameter of described baffle plate is less than the internal diameter of described cylindrical cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210509824.2A CN103851022A (en) | 2012-11-30 | 2012-11-30 | Hydraulic buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210509824.2A CN103851022A (en) | 2012-11-30 | 2012-11-30 | Hydraulic buffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103851022A true CN103851022A (en) | 2014-06-11 |
Family
ID=50859049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210509824.2A Pending CN103851022A (en) | 2012-11-30 | 2012-11-30 | Hydraulic buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103851022A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847731A (en) * | 2014-12-19 | 2015-08-19 | 北汽福田汽车股份有限公司 | Oil cylinder and engineering machinery with same |
| CN106678125A (en) * | 2016-12-05 | 2017-05-17 | 中船重工中南装备有限责任公司 | Hydraulic hoist oil cylinder buffering device and operation method |
-
2012
- 2012-11-30 CN CN201210509824.2A patent/CN103851022A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847731A (en) * | 2014-12-19 | 2015-08-19 | 北汽福田汽车股份有限公司 | Oil cylinder and engineering machinery with same |
| CN106678125A (en) * | 2016-12-05 | 2017-05-17 | 中船重工中南装备有限责任公司 | Hydraulic hoist oil cylinder buffering device and operation method |
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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 |