CN201827166U - Hydraulic cylinder floating buffer structure - Google Patents
Hydraulic cylinder floating buffer structure Download PDFInfo
- Publication number
- CN201827166U CN201827166U CN2010205575271U CN201020557527U CN201827166U CN 201827166 U CN201827166 U CN 201827166U CN 2010205575271 U CN2010205575271 U CN 2010205575271U CN 201020557527 U CN201020557527 U CN 201020557527U CN 201827166 U CN201827166 U CN 201827166U
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- piston rod
- buffer
- hydraulic cylinder
- buffer structure
- buffering
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Abstract
The utility model discloses a hydraulic cylinder floating buffer structure which belongs to the technical field of hydraulic cylinders and comprises a buffer sleeve (1) arranged in the cylinder barrel and a buffer (5) sheathed on a piston rod in a floating way. The buffer structure is characterized in that the piston rod, corresponding to the buffer (5), is internally provided with two groups of elastic support devices distributed along the axial direction of the piston rod; each elastic support device comprises at least three elastic supports evenly distributed along the same excircle of the piston rod; and the elastic supports are contacted with the inside wall of the buffer (5). For the buffer structure, the buffer and the piston rod can align automatically, the problem that the buffering part is firstly contacted with the buffer sleeve to cause scratching easily can be effectively avoided, and the service life of the hydraulic cylinder can be prolonged.
Description
Technical field
The utility model belongs to the oil hydraulic cylinder technical field, particularly the improvement of the unsteady buffer structure of oil hydraulic cylinder.
Background technique
Oil hydraulic cylinder all needs to install damping device usually for avoiding at end of travel severe impact cylinder cap and cylinder bottom.In the prior art, a kind of buffer structure that oil hydraulic cylinder often adopts is the buffer structure that floats, it is to establish cushion collar in the cylinder barrel of oil hydraulic cylinder, direct suit one buffering of floating near the piston rod of piston, the buffering with piston rod between be that monolateral line contacts, during cylinder action, piston promotes the local elder generation of buffering and contacts with cushion collar, and the chamfering by the buffering cylindrical will cushion levelling gradually then.Should float buffer structure owing to be that the buffering part contacts with cushion collar earlier, and the chamfering by the buffering cylindrical will cushion levelling gradually then, be easy to generate scuffing, and then influence the working life of oil cylinder.
The model utility content
At the above-mentioned defective that exists in the prior art, the utility model provides a kind of shock-absorbing capacity oil hydraulic cylinder good, can automatic centering buffer structure that floats, and it can improve the working life of oil hydraulic cylinder greatly.
The utility model is achieved by the following technical solution: a kind of oil hydraulic cylinder buffer structure that floats, comprise that the cushion collar that is located in the cylinder barrel and floating bushing are loaded on the buffering on the piston rod, it is characterized in that: in piston rod, be provided with two groups of resilient supporting units along the piston rod axial distribution corresponding to buffering, every group of resilient supporting unit comprises at least three equally distributed elastic support of same cylindrical along piston rod, and described elastic support contacts with the madial wall of described buffering.
In the utility model, the elastic support that is arranged in the piston rod can be with uniform the propping up of buffering, during cylinder action, when buffering contacts with cushion collar, can make buffering and piston rod automatic centering, avoid the local problem that is easy to generate scuffing that contacts with cushion collar earlier of buffering.
Described elastic support can adopt following structural type: it comprises the steel ball that radially is arranged on the supported spring in the piston rod and is located at the supported spring top along piston rod.By will cushion uniform jack-up by spring-supported steel ball.
Consider the simple and reliability of structural design, every group of resilient supporting unit can comprise three elastic support.
The beneficial effects of the utility model are: the utility model is simple in structure, design ingenious, reasonable, it will cushion uniform propping up by the elastic support that is provided with in piston rod, when making cylinder action, effectively guaranteed the automatic centering of buffering and piston rod, eliminated the influence of coaxiality error, its flying height can effectively guarantee cushioning effect, shock-absorbing capacity is good, effectively reduce noise and impulsive load, solved the local elder generation of buffering and contacted the problem that is easy to generate scuffing, can effectively prolong the working life of oil cylinder with cushion collar.
Description of drawings
Fig. 1 is an embodiment's of the present utility model structural representation;
Fig. 2 be among Fig. 1 B-B to enlarged diagram;
Fig. 3 is the A portion enlarged diagram among Fig. 1;
Among the figure, 1, cushion collar, 2, piston rod, 3, supported spring, 4, steel ball, 5, buffering, 6, piston, 7, protecgulum, 8, bonnet.
Embodiment
The embodiment of detail description also is further described the utility model in conjunction with the accompanying drawings:
Be a kind of oil hydraulic cylinder as shown in drawings, comprise cylinder barrel, piston rod 2, be installed in piston 6, protecgulum 7 and bonnet 8 on the piston rod 2, the cushion collar 1 that has the gap with piston rod 2 is installed in the cylinder barrel of oil hydraulic cylinder protecgulum end, on piston rod 2, be set with unsteady buffering 5 near piston 6, buffering 5 is a sleeve shape, itself and 6 in piston have the axial float gap, and itself and 2 in piston rod have the radial floating gap.In piston rod 2, be provided with two groups of resilient supporting units along the piston rod axial distribution corresponding to buffering 5, every group of resilient supporting unit comprises at least three equally distributed elastic support of same cylindrical along piston rod, each elastic support comprises supported spring 3 and is located at the steel ball 4 on supported spring 3 tops, supported spring 3 and steel ball 4 are arranged in the groove that radially is provided with along piston rod, steel ball 4 can withstand under the effect of supported spring 3 on buffering 5 the madial wall, and will cushion 5 and prop up.Consider the simpler property and the reliability of structural design, the quantity of elastic support is six in the present embodiment, promptly three every group.
During cylinder action, piston promotes buffering and contacts with cushion collar, and under the effect of elastic support, buffering and piston rod automatic centering have been eliminated the influence of coaxiality error, and shock-absorbing capacity is good.
Other parts of present embodiment adopt prior art, do not repeat them here.
The foregoing description only is used for explanation of the present utility model, is not to its restriction, and those skilled in the art also can make a change on this basis.
Claims (3)
1. the oil hydraulic cylinder buffer structure that floats, comprise that the cushion collar (1) that is located in the cylinder barrel and floating bushing are loaded on the buffering (5) on the piston rod, it is characterized in that: in piston rod, be provided with two groups of resilient supporting units along the piston rod axial distribution corresponding to buffering (5), every group of resilient supporting unit comprises at least three equally distributed elastic support of same cylindrical along piston rod, and described elastic support contacts with the madial wall of described buffering (5).
2. the oil hydraulic cylinder according to claim 1 buffer structure that floats is characterized in that: described elastic support comprises along piston rod and radially is arranged on the supported spring (3) in the piston rod and is located at the steel ball (4) on supported spring (3) top.
3. the oil hydraulic cylinder according to claim 1 and 2 buffer structure that floats, it is characterized in that: every group of resilient supporting unit comprises three elastic support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205575271U CN201827166U (en) | 2010-10-12 | 2010-10-12 | Hydraulic cylinder floating buffer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205575271U CN201827166U (en) | 2010-10-12 | 2010-10-12 | Hydraulic cylinder floating buffer structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201827166U true CN201827166U (en) | 2011-05-11 |
Family
ID=43965705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205575271U Expired - Fee Related CN201827166U (en) | 2010-10-12 | 2010-10-12 | Hydraulic cylinder floating buffer structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201827166U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545546A (en) * | 2017-01-12 | 2017-03-29 | 河南平芝高压开关有限公司 | Working cylinder with pooling feature and the hydraulic actuating mechanism using the working cylinder |
| TWI697626B (en) * | 2019-04-15 | 2020-07-01 | 油順精密股份有限公司 | A hydraulic cylinder with a buffer rear cover |
-
2010
- 2010-10-12 CN CN2010205575271U patent/CN201827166U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545546A (en) * | 2017-01-12 | 2017-03-29 | 河南平芝高压开关有限公司 | Working cylinder with pooling feature and the hydraulic actuating mechanism using the working cylinder |
| TWI697626B (en) * | 2019-04-15 | 2020-07-01 | 油順精密股份有限公司 | A hydraulic cylinder with a buffer rear cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20111012 |