CN213452258U - Multiple dust-proof hydraulic central swivel joint - Google Patents
Multiple dust-proof hydraulic central swivel joint Download PDFInfo
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- CN213452258U CN213452258U CN202022504045.6U CN202022504045U CN213452258U CN 213452258 U CN213452258 U CN 213452258U CN 202022504045 U CN202022504045 U CN 202022504045U CN 213452258 U CN213452258 U CN 213452258U
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- oil distribution
- swivel joint
- marriage
- seat
- joining
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Abstract
The utility model discloses a multiple dust protected hydraulic pressure central authorities swivel joint, including joining in marriage oily seat, joining in marriage oily axle and end cover, join in marriage and be provided with outer dust keeper between the preceding terminal surface of oily seat and the joining in marriage oily axle, join in marriage and be provided with built-in dust keeper between the front end inner wall of oily seat and the joining in marriage oily axle. The hydraulic central swivel joint of the application forms multichannel dustproof seal through adorning the dust keeper outward and adorning the dust keeper in with, has effectively improved the dustproof effect that connects, has reduced the probability that the circumstances such as card is dead, distortion, oil leak appear connecting under abominable operating mode or special weather condition. The service life of the joint is prolonged, and the safety risk of operation is reduced.
Description
Technical Field
The utility model relates to an examine technical field, concretely relates to multiple dust protected hydraulic pressure central swivel joint.
Background
The hydraulic central swivel joint is a key component in a hydraulic system of machinery such as an excavator, a crane, a land leveler, a tower crane, a rotary drilling rig and the like, and is used for connecting hydraulic pipelines of a fixed part and a rotating part in the whole hydraulic system, so that the upper part and the lower part of the hydraulic pipeline of the system have 360-degree relative swivel motion without interference.
Present hydraulic pressure central authorities swivel joint, its sealed design sets up multichannel sealing member mainly at joining in marriage between the oil shaft and the oil distribution seat, and the drawback of this kind of design is dustproof effect poor, for improving dustproof effect, among the prior art, the preceding terminal surface of joining in marriage the oil seat usually with join in marriage the outer dust ring of dress of design together between the oil shaft, this kind of design can improve dustproof effect to a certain extent, nevertheless under the abominable operating mode conditions such as mining field, muddy dark building site, south east subhot humid environment, the easy ageing failure of outer dust ring.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a multiple dust-proof hydraulic central swivel joint, so as to improve the dust-proof effect of the joint and prolong the service life of the joint.
The utility model discloses an above-mentioned problem is solved to following technical means: the multiple dustproof hydraulic central swivel joint comprises an oil distribution seat, an oil distribution shaft and an end cover, wherein an externally-mounted dustproof piece is arranged between the front end face of the oil distribution seat and the oil distribution shaft, and an internally-mounted dustproof piece is arranged between the inner wall of the front end of the oil distribution seat and the oil distribution shaft.
Further, the outer dustproof member is integrally formed with a tapered extension.
Further, a rotary seal is arranged between the oil distribution shaft and the oil distribution seat.
Further, the end cover is fixedly arranged on the rear end face of the oil distribution seat.
Furthermore, an O-shaped sealing ring is arranged between the end cover and the rear end face of the oil distribution seat.
Furthermore, the rear end of the oil distribution seat is provided with a positioning check ring which is clamped through an elastic check ring.
The utility model has the advantages that:
the application discloses multiple dust protected hydraulic pressure central authorities swivel joint, including joining in marriage oil holder, joining in marriage oily axle and end cover, join in marriage and be provided with between the preceding terminal surface of oil holder and the joining in marriage oily axle and adorn the dust keeper outward, join in marriage and be provided with built-in dust keeper between the front end inner wall of oil holder and the joining in marriage oily axle. The hydraulic central swivel joint of the application forms multichannel dustproof seal through adorning the dust keeper outward and adorning the dust keeper in with, has effectively improved the dustproof effect that connects, has reduced the probability that the circumstances such as card is dead, distortion, oil leak appear connecting under abominable operating mode or special weather condition. The service life of the joint is prolonged, and the safety risk of operation is reduced.
Drawings
The invention is further described with reference to the following figures and examples.
Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings, as shown in fig. 1: the utility model discloses a multiple dust protected hydraulic pressure central authorities swivel joint, including joining in marriage oil seat 5, joining in marriage oily axle 9 and end cover 1, join in marriage and be provided with between the preceding terminal surface of oil seat 5 and the joining in marriage oily axle 9 and adorn dustproof member 8 outward, join in marriage and be provided with built-in dustproof member 7 between the front end inner wall of oil seat 5 and the joining in marriage oily axle 9. A rotary seal 6 is arranged between the oil distribution shaft 9 and the oil distribution seat 5, the end cover 1 is fixedly arranged on the rear end face of the oil distribution seat 5, an O-shaped seal ring 3 is arranged between the end cover and the rear end face of the oil distribution seat, and a positioning check ring 4 is arranged at the rear end of the oil distribution seat and is clamped by an elastic check ring 2.
The hydraulic central swivel joint of this embodiment forms multichannel dustproof sealing through adorning the dust keeper outward and adorning the dust keeper in with, has effectively improved the dustproof effect of joint, has reduced the probability that the condition such as card is dead, distortion, oil leak appear under abominable operating mode or special weather condition in the joint. The service life of the joint is prolonged, and the safety risk of operation is reduced.
As a further improvement of the above technical solution, the outer dust-proof member 8 is integrally formed with a tapered flange 81, which is covered on the front end surface of the oil distribution base and is tightly attached by the elastic force of the outer dust-proof member itself, thereby further improving the dust-proof effect.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (6)
1. The utility model provides a multiple dust protected hydraulic pressure central authorities swivel joint, includes oil distribution seat (5), oil distribution axle (9) and end cover (1), be provided with between the preceding terminal surface of oil distribution seat and the oil distribution axle and adorn dustproof (8), its characterized in that outward: an inner dustproof part (7) is arranged between the inner wall of the front end of the oil distribution seat and the oil distribution shaft.
2. The multiple dust protected hydraulic central swivel joint of claim 1, wherein: the outer dustproof piece is integrally formed into a conical extending edge (81).
3. The multiple dust protected hydraulic central swivel joint of claim 2, wherein: and a rotary seal (6) is arranged between the oil distribution shaft and the oil distribution seat.
4. The multiple dust protected hydraulic central swivel joint of claim 3, wherein: the end cover (1) is fixedly arranged on the rear end face of the oil distribution seat (5).
5. The multiple dust protected hydraulic central swivel joint of claim 4, wherein: an O-shaped sealing ring (3) is arranged between the end cover and the rear end face of the oil distribution seat.
6. The multiple dust protected hydraulic central swivel joint of claim 5, wherein: the rear end of the oil distribution seat is provided with a positioning check ring (4), and the positioning check ring is clamped through an elastic check ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022504045.6U CN213452258U (en) | 2020-11-03 | 2020-11-03 | Multiple dust-proof hydraulic central swivel joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022504045.6U CN213452258U (en) | 2020-11-03 | 2020-11-03 | Multiple dust-proof hydraulic central swivel joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213452258U true CN213452258U (en) | 2021-06-15 |
Family
ID=76298002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022504045.6U Active CN213452258U (en) | 2020-11-03 | 2020-11-03 | Multiple dust-proof hydraulic central swivel joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213452258U (en) |
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2020
- 2020-11-03 CN CN202022504045.6U patent/CN213452258U/en active Active
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