CN103423539A - Hydraulic swivel joint not prone to oil leakage - Google Patents
Hydraulic swivel joint not prone to oil leakage Download PDFInfo
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- CN103423539A CN103423539A CN2012101572564A CN201210157256A CN103423539A CN 103423539 A CN103423539 A CN 103423539A CN 2012101572564 A CN2012101572564 A CN 2012101572564A CN 201210157256 A CN201210157256 A CN 201210157256A CN 103423539 A CN103423539 A CN 103423539A
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- rotation
- turning axle
- solid
- oil leakage
- swivel
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Abstract
The invention relates to a hydraulic swivel joint not prone to oil leakage. The hydraulic swivel joint not prone to oil leakage is characterized by comprising a swivel body (1) and a swivel shaft (2), wherein the bottom end of the swivel shaft (2) is inserted through the top end of the swivel body (1) in the axial direction, the top end of the swivel shaft (2) is exposed out of the swivel body (1), a gap between the top end of the swivel body (1) and the swivel shaft (2) is sleeved with a dust-proof sleeve (10), and a dust-proof ring (11) is arranged between the lower end of the dust-proof sleeve (10) and the swivel body (1). When the dust-proof sleeve of the hydraulic swivel joint is used in cooperation with the dust-proof ring of the hydraulic swivel joint, external dust cannot easily enter the hydraulic swivel joint not prone to oil leakage, oil cannot leak from the interior of the hydraulic swivel joint not prone to oil leakage, and thus the performance of the hydraulic swivel joint not prone to oil leakage is ensured.
Description
Technical field
The present invention relates to a kind of hydraumatic swivel joint of not easy oil leakage, be mainly used in, in the hydraulic system of crawler excavator, belonging to technical field of engineering machinery.
Background technique
Two-part up and down of crawler excavator are need to be rotating, in the middle of it, by swivel coupling, connect.Swivel coupling is comprised of solid of rotation, turning axle and lid etc.During use, the revolution lower bolster of solid of rotation and crawler excavator is fixed, and the mounting plate on turning axle supports and is connected with the revolution of crawler excavator, and two-part up and down of crawler excavator complete and relatively rotate by solid of rotation and turning axle.
Yet swivel coupling in the past and extraneous sealability are poor, extraneous dust easily creeps in swivel coupling, affected the performance of swivel coupling, and the oil in swivel coupling also easily spills, solid of rotation in swivel coupling and turning axle are relatively rotated and also produced impact.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, provide a kind of dust to be difficult for entering, oil is difficult for spilling, and solid of rotation and turning axle relatively rotate the hydraumatic swivel joint of impregnable not easy oil leakage.
The object of the present invention is achieved like this:
The hydraumatic swivel joint of not easy oil leakage of the present invention, comprise solid of rotation and turning axle, insert from the top axial of solid of rotation the bottom of described turning axle, the top of described turning axle is exposed to solid of rotation, described solid of rotation is connected by cover plate with the bottom of turning axle, the bottom of described turning axle oilhole is vertically arranged with cone blocking, be provided with O type circle I between cover plate and cone blocking, be provided with shaft block ring and back-up ring between the lower end of described solid of rotation and the lower end of turning axle, also be provided with rotating seal ring and O shape circle II between described solid of rotation and turning axle, the top of described solid of rotation and the gap outer race between turning axle have dirt-proof boot, be provided with dust ring between the lower end of described dirt-proof boot and solid of rotation.
Compared with prior art, the invention has the beneficial effects as follows:
The hydraumatic swivel joint of this not easy oil leakage has been set up a dirt-proof boot between solid of rotation and turning axle, dirt-proof boot encases dirt-proof boot, after being used in conjunction with, this dirt-proof boot and dust ring can make extraneous dust be difficult for creeping in swivel coupling, and oil can not spill internally, thereby guaranteed the performance of swivel coupling.
The accompanying drawing explanation
The sectional view of the hydraumatic swivel joint that Fig. 1 is not easy oil leakage of the present invention.
Wherein: solid of rotation 1, turning axle 2, cover plate 3, cone blocking 4, O type circle I 5, shaft block ring 6, back-up ring 7, rotating seal ring 8, O shape circle II 9, dirt-proof boot 10, dust ring 11.
Embodiment
Referring to Fig. 1, the present invention relates to a kind of hydraumatic swivel joint of not easy oil leakage, comprise solid of rotation 1 and turning axle 2, insert from the top axial of solid of rotation 1 bottom of described turning axle 2, the top of described turning axle 2 is exposed to solid of rotation 1, described solid of rotation 1 is connected by cover plate 3 with the bottom of turning axle 2, the bottom of described turning axle 2 oilholes is vertically arranged with cone blocking 4, be provided with O type circle I 5 between cover plate 3 and cone blocking 4, be provided with shaft block ring 6 and back-up ring 7 between the lower end of the lower end of described solid of rotation 1 and turning axle 2, also be provided with rotating seal ring 8 and O shape circle II 9 between described solid of rotation 1 and turning axle 2, gap outer race between the top of described solid of rotation 1 and turning axle 2 has dirt-proof boot 10, be provided with dust ring 11 between the lower end of described dirt-proof boot 10 and solid of rotation 1, after dirt-proof boot 10 and dust ring 11 are used in conjunction with, the gap between solid of rotation 1 and turning axle 2 is encased fully, thereby make extraneous dust be difficult for creeping in swivel coupling, and oil can not spill internally, thereby guaranteed the performance of swivel coupling, without often oiling, reduced workman's labor intensity.
Claims (1)
1. the hydraumatic swivel joint of a not easy oil leakage, it is characterized in that: it comprises solid of rotation (1) and turning axle (2), insert from the top axial of solid of rotation (1) bottom of described turning axle (2), the top of described turning axle (2) is exposed to solid of rotation (1), described solid of rotation (1) is connected by cover plate (3) with the bottom of turning axle (2), the bottom of described turning axle (2) oilhole is vertically arranged with cone blocking (4), be provided with O type circle I (5) between cover plate (3) and cone blocking (4), be provided with shaft block ring (6) and back-up ring (7) between the lower end of the lower end of described solid of rotation (1) and turning axle (2), also be provided with rotating seal ring (8) and O shape circle II (9) between described solid of rotation (1) and turning axle (2), gap outer race between the top of described solid of rotation (1) and turning axle (2) has dirt-proof boot (10), be provided with dust ring (11) between the lower end of described dirt-proof boot (10) and solid of rotation (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101572564A CN103423539A (en) | 2012-05-21 | 2012-05-21 | Hydraulic swivel joint not prone to oil leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101572564A CN103423539A (en) | 2012-05-21 | 2012-05-21 | Hydraulic swivel joint not prone to oil leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103423539A true CN103423539A (en) | 2013-12-04 |
Family
ID=49648699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101572564A Pending CN103423539A (en) | 2012-05-21 | 2012-05-21 | Hydraulic swivel joint not prone to oil leakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103423539A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296843A (en) * | 2018-11-29 | 2019-02-01 | 杨胜 | A kind of corrosionproof pipes connector |
| CN109340462A (en) * | 2018-11-14 | 2019-02-15 | 张家俊 | A kind of petroleum pipeline |
-
2012
- 2012-05-21 CN CN2012101572564A patent/CN103423539A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340462A (en) * | 2018-11-14 | 2019-02-15 | 张家俊 | A kind of petroleum pipeline |
| CN109296843A (en) * | 2018-11-29 | 2019-02-01 | 杨胜 | A kind of corrosionproof pipes connector |
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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: 20131204 |