CN211259196U - Dustproof hydraulic oil cylinder - Google Patents
Dustproof hydraulic oil cylinder Download PDFInfo
- Publication number
- CN211259196U CN211259196U CN201922301004.4U CN201922301004U CN211259196U CN 211259196 U CN211259196 U CN 211259196U CN 201922301004 U CN201922301004 U CN 201922301004U CN 211259196 U CN211259196 U CN 211259196U
- Authority
- CN
- China
- Prior art keywords
- dustproof
- cover
- piston rod
- gland
- dust
- 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.)
- Expired - Fee Related
Links
- 239000010720 hydraulic oil Substances 0.000 title claims description 8
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 239000000428 dust Substances 0.000 claims abstract description 19
- 210000004907 gland Anatomy 0.000 claims abstract description 18
- 239000003921 oil Substances 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims 2
- 239000007769 metal material Substances 0.000 claims 1
- 238000003466 welding Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 abstract description 2
- 230000003670 easy-to-clean Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to a hydraulic cylinder, in particular to dustproof hydraulic cylinder. The oil cylinder comprises a gland, an oil cylinder body and a piston rod, wherein a group of lip-shaped sealing rings with opposite lips are arranged on the gland; the method is characterized in that: the piston rod is exposed outside and is also provided with a dustproof part. The utility model discloses a dust guard is with piston rod and external environment complete isolation, has prevented the entering of dust, and dustproof effect is splendid, has prolonged hydraulic cylinder's life. The dust cover can be detached, is convenient to replace and is easy to clean. The corrugated pipe can also play a certain protection role on the piston rod.
Description
Technical Field
The utility model relates to a hydraulic cylinder, in particular to dustproof hydraulic cylinder.
Background
The hydraulic oil cylinder is used as a common mechanical component and widely applied to the field of machinery, the existing hydraulic oil cylinder is mainly sealed by two sealing rings, one group of sealing elements is used for sealing oil, and the other sealing ring plays a dustproof role. The sealing ring is tightly combined with the piston rod through self elasticity, and when the piston rod reciprocates, the sealing ring can scrape off dust, water stains and the like attached to the surface of the piston rod, so that dirt such as dust is blocked outside. However, under the conditions of severe external environment and more dust and impurities, when the piston rod is used for a long time, the oil seal and the sealing ring can be damaged by fine dust particles, so that the piston rod is worn, and the piston rod is damaged more seriously.
Disclosure of Invention
The utility model aims at overcoming the defect that prior art exists, providing one kind with the piston rod with external environment is complete keeps apart, prevented the entering of dust, dustproof hydraulic cylinder that dustproof effect is splendid.
Realize the utility model discloses the technical scheme of purpose is:
a dustproof hydraulic oil cylinder comprises a gland, an oil cylinder body and a piston rod, wherein a group of lip-shaped sealing rings with lips opposite to each other are arranged on the gland; the piston rod is exposed outside and is also provided with a dustproof part. The dustproof part comprises a dustproof top cover, a corrugated pipe, a dustproof bottom cover, an air passage and a dustproof cover; the dustproof top cover is installed on the top end of the piston rod, the dustproof bottom cover is installed on the outer side of the pressing cover, the two ends of the corrugated pipe are fixedly connected with the dustproof top cover and the dustproof bottom cover in a sealing mode respectively, the dustproof bottom cover is provided with a plurality of air passages which are connected with the inside of the corrugated pipe and the outside, and a plurality of corresponding dustproof covers are arranged at the outer ends of the air passages.
Preferably, the end face of the gland is provided with an O-shaped sealing ring.
Preferably, the number of the air passages is 6, and the air passages are uniformly distributed in the dustproof bottom cover.
Preferably, the number of the dust covers is 6 corresponding to that of the air passages, and the dust covers are detachably mounted on the dust bottom cover in a clamping groove mode.
Preferably, the dustproof top cover and the dustproof bottom cover are fixedly connected with the piston rod and the gland respectively through a plurality of studs.
Preferably, the corrugated pipe is made of metal, and two ends of the corrugated pipe are respectively welded with the dustproof top cover and the dustproof bottom cover in a sealing and fixed connection mode.
Preferably, the dustproof part further comprises a corrugated air pipe and an air pipe outer cover, the corrugated air pipe is communicated with the air passage and welded on the dustproof bottom cover, the bottom of the corrugated air pipe is sealed, the air pipe outer cover is used for sleeving the corrugated air pipe and is also welded and fixed with the dustproof bottom cover, and the dustproof cover is arranged at the bottom of the air pipe outer cover.
After the technical scheme is adopted, the utility model discloses following positive effect has:
(1) the utility model discloses a dust guard is with piston rod and external environment complete isolation, has prevented the entering of dust, and dustproof effect is splendid, has prolonged hydraulic cylinder's life.
(2) The utility model discloses a shield can be dismantled, and convenient the change is easily cleared up.
(3) The utility model discloses a bellows can also play certain guard action to the piston rod, can also play the effect of buffering, prevents the direct rigid contact of top cap and well lid.
(4) The utility model discloses simple structure, the assembly is easy.
Drawings
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is given in conjunction with the accompanying drawings, in which
Fig. 1 is a cross-sectional view of the present invention;
fig. 2 is a cross-sectional view of a second embodiment of the present invention;
the reference numbers in the drawings are as follows:
1-pressing a cover; 2-the oil cylinder body; 3-a piston rod; 4-lip-shaped sealing ring; 5-a dust-proof part; 51-dustproof top cover; 52-a bellows; 53-dustproof bottom cover; 54-an airway; 55-dust cover; 56-corrugated air pipe; 57-tracheal tube housing; 6-O type sealing ring; 7-a first oil port; 8-a second oil port.
Detailed Description
(example 1)
Referring to fig. 1, the utility model has a gland 1, an oil cylinder body 2 and a piston rod 3, wherein, a group of lip-shaped sealing rings 4 with opposite lips are arranged on the gland 1, the piston rod 3 is arranged on the oil cylinder body 2, and the gland 1 is fixedly connected with the oil cylinder body 2 in a sealing way; the piston rod 3 is provided with a dust-proof portion 5 outside the exposed portion. The dust-proof part 5 comprises a dust-proof top cover 51, a corrugated pipe 52, a dust-proof bottom cover 53, an air passage 54 and a dust-proof cover 55; the dustproof top cover 51 is arranged at the top end of the piston rod 3, the dustproof bottom cover 53 is arranged at the outer side of the gland 1, and the dustproof top cover 51 and the dustproof bottom cover 53 are fixedly connected with the piston rod 3 and the gland 1 through 6 dry studs respectively. An O-shaped sealing ring 6 is arranged on the end surface of the gland 1. The two ends of the corrugated pipe 52 are respectively welded with the dustproof top cover 51 and the dustproof bottom cover 53, and the number of the air passages 54 is 6, and the air passages are uniformly distributed in the dustproof bottom cover 53. The dust caps 55 correspond to the air passages 54, and are also 6 in number, and are detachably mounted on the dust cap bottom 53 in a snap-in type.
(example 2)
Referring to fig. 2, this embodiment is substantially the same as embodiment 1, and its distinctive features are: the dustproof portion 5 further comprises a corrugated air pipe 56 and an air pipe outer cover 57, the number of the air passages 54 is 3, the corrugated air pipe 56 and the air passages 54 are uniformly distributed on the dustproof bottom cover 53, the corrugated air pipe 56 is communicated with the air passages 54 and welded on the dustproof bottom cover 53, the bottoms of the corrugated air pipes 56 are sealed, the air pipe outer cover 57 is sleeved with the corrugated air pipe 56 and is also welded and fixed with the dustproof bottom cover 53, and the dustproof cover 55 is arranged at the bottom of the air pipe outer cover 57.
The utility model discloses a theory of operation does:
when the hydraulic oil cylinder works, the piston rod 3 drives the corrugated pipe 52 to extend and compress, air circulates through the air passage 54, dust and impurities are isolated outside by the dust cover 55, the cleanness of the piston rod is guaranteed, and the service life of the hydraulic oil cylinder is prolonged. Or the bellows 52 is communicated with the bellows 56 through the air passage 54, and protective gas is injected to completely isolate the piston rod 3 from the outside.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A dustproof hydraulic oil cylinder comprises a gland (1), an oil cylinder body (2) and a piston rod (3), wherein a group of lip-shaped sealing rings (4) with opposite lips are arranged on the gland (1), the piston rod (3) is arranged on the oil cylinder body (2), and the gland (1) is fixedly connected with the oil cylinder body (2) in a sealing manner; hydro-cylinder body (2) lateral wall is equipped with first hydraulic fluid port (7), and the bottom is equipped with second hydraulic fluid port (8), its characterized in that: the piston rod (3) is exposed outside and is also provided with a dustproof part (5).
2. The dustproof hydraulic ram of claim 1, wherein: the dustproof part (5) comprises a dustproof top cover (51), a corrugated pipe (52), a dustproof bottom cover (53), an air passage (54) and a dustproof cover (55); dustproof top cap (51) install in piston rod (3) top, install dustproof bottom (53) the outside of gland (1), bellows (52) both ends respectively with dustproof top cap (51) and dustproof bottom (53) fixed connection that seals, dustproof bottom (53) are equipped with a plurality of connections inside and external air flue (54) of bellows (52), are equipped with a plurality of dust caps (55) that correspond in the outer end of air flue (54).
3. A dustproof hydraulic ram according to claim 1 or 2, characterized in that: an O-shaped sealing ring (6) is arranged on the end face of the gland (1).
4. The dustproof hydraulic ram of claim 2, wherein: the number of the air passages (54) is 6, and the air passages are uniformly distributed in the dustproof bottom cover (53).
5. The dustproof hydraulic ram of claim 4, wherein: the number of the dust-proof covers (55) is 6 corresponding to that of the air passages (54), and the dust-proof covers are detachably arranged on the dust-proof bottom cover (53) in a clamping groove mode.
6. The dustproof hydraulic ram of claim 2, wherein: the dustproof top cover (51) and the dustproof bottom cover (53) are fixedly connected with the piston rod (3) and the gland (1) through a plurality of studs respectively.
7. The dustproof hydraulic ram of claim 2, wherein: the corrugated pipe (52) is made of metal materials, and two ends of the corrugated pipe (52) are respectively fixedly connected with the dustproof top cover (51) and the dustproof bottom cover (53) in a sealing mode through welding.
8. The dustproof hydraulic ram of claim 2, wherein: the dustproof portion (5) further comprises a corrugated air pipe (56) and an air pipe outer cover (57), the corrugated air pipe (56) is communicated with the air passage (54) and welded to the dustproof bottom cover (53), the air pipe outer cover (57) is used for sleeving the corrugated air pipe (56), the bottom of the corrugated air pipe (56) is sealed and is also welded and fixed to the dustproof bottom cover (53), and the dustproof cover (55) is installed at the bottom of the air pipe outer cover (57).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922301004.4U CN211259196U (en) | 2019-12-19 | 2019-12-19 | Dustproof hydraulic oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922301004.4U CN211259196U (en) | 2019-12-19 | 2019-12-19 | Dustproof hydraulic oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211259196U true CN211259196U (en) | 2020-08-14 |
Family
ID=71986876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922301004.4U Expired - Fee Related CN211259196U (en) | 2019-12-19 | 2019-12-19 | Dustproof hydraulic oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211259196U (en) |
-
2019
- 2019-12-19 CN CN201922301004.4U patent/CN211259196U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200814 |