CN201786806U - Air brush dustproof hydraulic cylinder - Google Patents
Air brush dustproof hydraulic cylinder Download PDFInfo
- Publication number
- CN201786806U CN201786806U CN2010205384541U CN201020538454U CN201786806U CN 201786806 U CN201786806 U CN 201786806U CN 2010205384541 U CN2010205384541 U CN 2010205384541U CN 201020538454 U CN201020538454 U CN 201020538454U CN 201786806 U CN201786806 U CN 201786806U
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- China
- Prior art keywords
- air
- pressing plate
- brush
- piston
- piston rod
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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.)
- Expired - Fee Related
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Abstract
The utility model provides an air brush dustproof hydraulic cylinder including a cylinder body, a piston, a front pressing plate, an air brush pressing plate, a cylinder cover and a sealing ring, the piston is arranged in the cylinder body, the cylinder cover is arranged at the end part of the cylinder body, a bore is arranged on the cylinder cover, the piston rod of the piston is penetrated through the bore of the cylinder cover, a sealing ring is arranged between the piston rod of the piston and the bore of the cylinder cover, the front pressing plate is provided with an air pipe joint, an internal channel and an air outlet, the internal channel is communicated to the air pipe joint and the air outlet, the air brush pressing plate is provided with a through hole, a circular chamber and a plurality of air brush branches that are in an uniform distribution in the radial direction, the circular chamber is communicated to the air brush branches; the front pressing plate is arranged on the cylinder cover, the air brush pressing plate is arranged on the front pressing plate, the air outlet of the front pressing plate is communicated to the circular chamber of the air brush pressing plate, the piston rod of the piston is penetrated by the through hole of the air brush pressing plate, a gap is left between the piston rod and the through hole of the air brush pressing plate. The hydraulic cylinder in the utility model can take the effect of dustproof under the condition of high speed and high frequency reciprocating movement of the piston rod, the sealing ring is free of being damaged, and the running lifetime of the hydraulic cylinder is prolonged.
Description
Technical field
The utility model relates to the oil hydraulic cylinder in a kind of hydraulic actuator, particularly relates to the dustproof oil hydraulic cylinder of air-brush.
Background technique
The oil hydraulic cylinder of hydraulic system generally adopts dust ring or dust-proof cover to play dustproof effect.Under most of operating modes, the form of dust ring or dust-proof cover can satisfy usage requirement, but under the high speed of hydraulic cylinder piston rod, high frequency to-and-fro motion situation, heating can appear in dust ring, and then softening failure phenomenon occurs, particularly under abominable operating mode (high temperature, high humility, high dust etc.), easily be covered with contamination particle, sewage and heavy oil film on the piston rod, pollutant enters dust ring during the piston rod action, causes the damage of seal ring, and then pull piston rod, oil hydraulic cylinder is damaged.
Summary of the invention
The purpose of this utility model provides the dustproof oil hydraulic cylinder of a kind of air-brush, and the dustproof oil hydraulic cylinder of this air-brush also can play dustproof effect under the high speed of piston rod, high frequency to-and-fro motion situation, can not cause the damage of seal ring, improves the service life of oil hydraulic cylinder.
In order to achieve the above object, the air-brush of the present utility model oil hydraulic cylinder that prevents dust, comprise cylinder body, piston, cylinder cap and seal ring, piston is in cylinder body, cylinder cap is installed in cylinder ends, endoporus is arranged on the cylinder cap, the piston rod of piston passes the endoporus of cylinder cap, between the piston rod of piston and the endoporus of cylinder cap seal ring is installed, it is characterized in that: also comprise front pressuring plate and air-brush pressing plate, front pressuring plate has air pipe interface, internal channel and air outlet, internal channel connectivity trachea interface and air outlet, on the air-brush pressing plate through hole is arranged, the air-brush branch road of annular chamber and a plurality of radial equipartitions, annular chamber and air-brush branch road are connected;
Front pressuring plate is installed on the cylinder cap, and the air-brush pressing plate is installed on the front pressuring plate, and the air outlet of front pressuring plate is communicated with the annular chamber of air-brush pressing plate, and the piston rod of piston passes the through hole of air-brush pressing plate, and is gapped between the through hole of piston rod and air-brush pressing plate.
Because front pressuring plate and air-brush pressing plate have been arranged, and the internal channel connectivity trachea interface and the air outlet of front pressuring plate, the annular chamber of air-brush pressing plate and air-brush branch road are connected, gapped between the through hole of piston rod and air-brush pressing plate, the clean pressurized air that enters from the front pressuring plate air pipe interface will flow out from the gap between piston rod and the through hole, clean pressurized air has just stoped pollutant to enter the gap of piston rod and air-brush pressing plate when flowing out, and has got dustproof effect; Simultaneously, the air stream of outflow has been taken away the heat that piston rod produces because of contact friction, can not make seal ring softening because of frictional heat produces high temperature, has improved the service life of oil hydraulic cylinder.
The described air-brush oil hydraulic cylinder that prevents dust, it is characterized in that: also comprise protective hat, protective hat is the drum that an end has bottom outlet, and protective hat is installed on the piston rod of piston, the bottom outlet of protective hat and the piston rod of piston are to be threaded, and be gapped between protective hat and the air-brush pressing plate.Because it is gapped between protective hat and the air-brush pressing plate, make the clean pressurized air that enters from the front pressuring plate air pipe interface that longer passage be arranged behind the piston rod of piston of flowing through, more effective prevention pollutant enters the gap of piston rod and air-brush pressing plate, makes dustproof better effects if.
The described air-brush oil hydraulic cylinder that prevents dust is characterized in that: the through hole of air-brush pressing plate has chamfering propping up the roadside near air-brush.Because prop up the roadside at close air-brush chamfering is arranged, air-flow is more evenly distributed when the gap that enters between piston rod and the through hole, dustproof better effects if.
The air-brush of the present utility model oil hydraulic cylinder that prevents dust also can play dustproof effect under the high speed of piston rod, high frequency to-and-fro motion situation, can not cause the damage of seal ring, has improved the service life of oil hydraulic cylinder.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation.
Fig. 2 is the structural representation of air-brush pressing plate.
Embodiment
The explanation of Fig. 1 mark: cylinder body 1, piston 2, cylinder cap 3, front pressuring plate 4, tracheae 5, pipe joint 6, air pipe interface 7, internal channel 8, air outlet 9, air-brush pressing plate 10, protective hat 11, seal ring 12, sealing gasket 13, piston rod 18.
The explanation of Fig. 2 mark: annular chamber 14, through hole 15, air-brush branch road 16, chamfering 17.
Referring to Fig. 1, the embodiment of the dustproof oil hydraulic cylinder of the utility model air-brush comprises cylinder body 1, piston 2, cylinder cap 3, seal ring 12, front pressuring plate 4 and air-brush pressing plate 10, piston 2 is in cylinder body 1, cylinder cap 3 is installed in cylinder body 1 end, on the cylinder cap 3 endoporus is arranged, the piston rod 18 of piston 2 passes the endoporus of cylinder cap 3, between the piston rod 18 of piston 2 and the endoporus of cylinder cap 3 seal ring 12 is installed, front pressuring plate 4 has air pipe interface 7, internal channel 8 and air outlet 9, internal channel 8 connectivity trachea interfaces 7 and air outlet 9, referring to Fig. 2, through hole 15 is arranged on the air-brush pressing plate 10, the air-brush branch road 16 of annular chamber 14 and a plurality of radial equipartitions, annular chamber 14 and air-brush branch road 16 are connected;
Front pressuring plate 4 is installed on the cylinder cap 3, air-brush pressing plate 10 is installed on the front pressuring plate 4, between air-brush pressing plate 10 and the front pressuring plate 4 sealing gasket 13 is installed, the air outlet 9 of front pressuring plate 4 is communicated with the annular chamber 14 of air-brush pressing plate 10, the piston rod 18 of piston 2 passes the through hole 15 of air-brush pressing plate 10, and is gapped between the through hole 15 of piston rod 18 and air-brush pressing plate 10.In an embodiment, the gap between the through hole 15 of piston rod 18 and air-brush pressing plate 10 is 2mm.
Because front pressuring plate 4 and air-brush pressing plate 10 have been arranged, and the internal channel 8 connectivity trachea interfaces 7 and air outlet 9 of front pressuring plate 4, the annular chamber 14 and the air-brush branch road 16 of air-brush pressing plate 10 are connected, gapped between the through hole 15 of piston rod 18 and air-brush pressing plate 10, the clean pressurized air that enters from front pressuring plate 4 air pipe interfaces 7 by front pressuring plate internal channel 8 and air outlet 9 to the annular chamber 14 of air-brush pressing plate 10, after forming annular pressurized air stream, again by air-brush branch road 16, forced draft blows to piston rod 18 from a plurality of air-brush branch roads 14 with certain oblique angle, brushes the contamination particle on the piston rod 18, sewage and heavy oil film.Afterwards, air-flow flows out from the gap between piston rod 18 and the through hole 15, and pressurized air has also stoped pollutant to enter the gap of piston rod 18 and air-brush pressing plate 10 when flowing out, and has got dustproof effect; On the other hand, the pressurized air stream of outflow has been taken away the heat that piston rod 18 produces because of contact friction, can not make seal ring 12 softening because of frictional heat produces high temperature, has improved the service life of oil hydraulic cylinder.
In an embodiment, also comprise protective hat 11, protective hat 11 is the drum that an end has bottom outlet, and protective hat 11 is installed on the piston rod 18 of piston 2, the piston rod 18 of the bottom outlet of protective hat 11 and piston 2 is to be threaded, and is gapped between protective hat 11 and the air-brush pressing plate 10.Because it is gapped between protective hat 11 and the air-brush pressing plate 10, make the clean pressurized air that enters from front pressuring plate 4 air pipe interfaces 7 behind the piston rod 18 of piston 2 of flowing through, longer passage be arranged, more effective prevention pollutant enters the gap of piston rod 18 and air-brush pressing plate 10, makes dustproof better effects if.
Air-brush pressing plate 10 is provided with a plurality of air-brush branch roads 16, and is radially uniform all around.Like this, air-flow is more evenly distributed when the gap that enters between piston rod 18 and the through hole 15, dustproof better effects if.The number of air-brush branch road 16 can specifically be determined as required.The quantity of air-brush branch road is 8 among the embodiment, and is radially uniform all around.
The through hole 15 of air-brush pressing plate 10 is having chamfering 17 near air-brush branch road 16 limits.Because near air-brush branch road 16 limits chamfering 17 is being arranged, the air-flow of discharging from air-brush branch road 16 can have certain oblique angle to blow to piston rod 18, brushes the better effects if of contamination particle, sewage and heavy oil film on the piston rod 18.In the present embodiment, the axial institute of the through hole 15 of chamfering 17 and air-brush pressing plate 10 to become the angle be 60 °.
The air-brush of the present utility model oil hydraulic cylinder that prevents dust also can play dustproof effect under the high speed of piston rod 18, high frequency to-and-fro motion situation, can not cause the damage of seal ring 12, has improved the service life of oil hydraulic cylinder, is particularly suitable for the oil hydraulic cylinder of high frequency motion.
Claims (3)
1. the dustproof oil hydraulic cylinder of air-brush, comprise cylinder body, piston, cylinder cap and seal ring, piston is in cylinder body, cylinder cap is installed in cylinder ends, endoporus is arranged on the cylinder cap, the piston rod of piston passes the endoporus of cylinder cap, between the piston rod of piston and the endoporus of cylinder cap seal ring is installed, it is characterized in that: also comprise front pressuring plate and air-brush pressing plate, front pressuring plate has air pipe interface, internal channel and air outlet, there is the air-brush branch road of through hole, annular chamber and a plurality of radial equipartitions internal channel connectivity trachea interface and air outlet on the air-brush pressing plate, annular chamber and air-brush branch road are connected;
Front pressuring plate is installed on the cylinder cap, and the air-brush pressing plate is installed on the front pressuring plate, and the air outlet of front pressuring plate is communicated with the annular chamber of air-brush pressing plate, and the piston rod of piston passes the through hole of air-brush pressing plate, and is gapped between the through hole of piston rod and air-brush pressing plate.
2. the air-brush according to claim 1 oil hydraulic cylinder that prevents dust, it is characterized in that: also comprise protective hat, protective hat is the drum that an end has bottom outlet, protective hat is installed on the piston rod of piston, the bottom outlet of protective hat and the piston rod of piston are to be threaded, and be gapped between protective hat and the air-brush pressing plate.
3. the air-brush according to claim 1 oil hydraulic cylinder that prevents dust is characterized in that: the through hole of air-brush pressing plate has chamfering propping up the roadside near air-brush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205384541U CN201786806U (en) | 2010-09-21 | 2010-09-21 | Air brush dustproof hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205384541U CN201786806U (en) | 2010-09-21 | 2010-09-21 | Air brush dustproof hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201786806U true CN201786806U (en) | 2011-04-06 |
Family
ID=43818771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205384541U Expired - Fee Related CN201786806U (en) | 2010-09-21 | 2010-09-21 | Air brush dustproof hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201786806U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650183A (en) * | 2016-04-11 | 2016-06-08 | 常州气弹簧有限公司 | Cleaning type gas spring |
| CN108180184A (en) * | 2017-12-25 | 2018-06-19 | 重庆普永科技发展有限公司 | A kind of dust protected SMC cylinders |
| CN110153101A (en) * | 2019-05-13 | 2019-08-23 | 中广核核电运营有限公司 | Prevent the device of carbon brush bite |
| CN112377484A (en) * | 2020-11-16 | 2021-02-19 | 江苏昊阳传动科技有限公司 | Anti-shaking quick pressurizing crane oil cylinder |
-
2010
- 2010-09-21 CN CN2010205384541U patent/CN201786806U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650183A (en) * | 2016-04-11 | 2016-06-08 | 常州气弹簧有限公司 | Cleaning type gas spring |
| CN108180184A (en) * | 2017-12-25 | 2018-06-19 | 重庆普永科技发展有限公司 | A kind of dust protected SMC cylinders |
| CN110153101A (en) * | 2019-05-13 | 2019-08-23 | 中广核核电运营有限公司 | Prevent the device of carbon brush bite |
| CN112377484A (en) * | 2020-11-16 | 2021-02-19 | 江苏昊阳传动科技有限公司 | Anti-shaking quick pressurizing crane oil cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20150921 |
|
| EXPY | Termination of patent right or utility model |