CN209294615U - A kind of bearing-free self-sealing high-speed high-pressure rotary joint - Google Patents
A kind of bearing-free self-sealing high-speed high-pressure rotary joint Download PDFInfo
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- CN209294615U CN209294615U CN201822066717.2U CN201822066717U CN209294615U CN 209294615 U CN209294615 U CN 209294615U CN 201822066717 U CN201822066717 U CN 201822066717U CN 209294615 U CN209294615 U CN 209294615U
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- air inlet
- venting cavity
- inlet pipe
- face seal
- seal ring
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Abstract
The utility model proposes a kind of bearing-free self-sealing high-speed high-pressure rotary joint, including shell, throttling stopple, air inlet pipe and end-face seal ring regarding to the issue above；Venting cavity is equipped in shell, one end of venting cavity is equipped with air inlet, the other end of venting cavity is equipped at least one gas outlet, throttling stopple is fixed in venting cavity, between air inlet and gas outlet, end-face seal ring is fixed on the inlet port of venting cavity, forms higher-pressure region between end-face seal ring and throttling stopple；One end of air inlet pipe passes through the air inlet of venting cavity and end-face seal ring is arranged in higher-pressure region, and air inlet pipe is located at the pipe end in higher-pressure region in bell-mouth structure of air；The utility model solves the leakage problem of bearing rotary, and the scope of application is wider, and compact-sized, realizes oil-free lubrication rotatory sealing.
Description
Technical field
The utility model relates to a kind of rotary joint, in particular to a kind of bearing-free self-sealing high-speed high-pressure rotary joint.
Background technique
With the rapid development of automotive engineering, the demand that people control tire pressure is growing day by day, the use of special purpose vehicle
Make this demand more obvious.Trailer as a kind of purpose-built vehicle, the control of tire pressure not only concerning the abrasion of tire with it is whole
Vehicle oil consumption, more relationship driving safety.Trailer axle is generally not equipped with rotation sealing gland, and trailer becomes during travelling to tire benefit
It is difficult.
Rotary joint can well solve this problem, and rotary joint includes three parts, i.e. rotating part, sealing
Part and stationary part.Rotating part is connect with rotating drum, and stationary part is connect with quiet chamber, there is complete gas between this two parts
Body channel, seal member are sealed gas, prevent gas from leaking.
Rotary joint is primarily to solve the transmission of rotational structure high pressure gas.Under normal circumstances, rotary shaft is exhausted with sealing
Most of rotary seal structure for using bearing, the practical applicable elements of bearing rotary sealing structure are low with low-voltage high speed or high speed
Based on the operating conditions such as pressure, and bearing needs intermittent oiling to maintain.
Utility model content
The utility model proposes a kind of bearing-free self-sealing high-speed high-pressure rotary joint regarding to the issue above, solves bearing
The leakage problem of rotation, the scope of application is wider, and compact-sized, realizes oil-free lubrication rotatory sealing.
Specific technical solution is as follows:
A kind of bearing-free self-sealing high-speed high-pressure rotary joint, including shell, throttling stopple, air inlet pipe and end face seal
Circle；
Venting cavity is equipped in shell, one end of venting cavity is equipped with air inlet, and the other end of venting cavity goes out equipped at least one
Port, throttling stopple be fixed in venting cavity, between air inlet and gas outlet, end-face seal ring be fixed on venting cavity into
Port end forms higher-pressure region between end-face seal ring and throttling stopple；
One end of air inlet pipe passes through the air inlet of venting cavity and end-face seal ring is arranged in higher-pressure region, and air inlet pipe is located at height
Pipe end in pressure area is in bell-mouth structure of air；
Air inlet pipe outside venting cavity is equipped with outer tube, and outer tube is set on the outer wall of air inlet pipe, outer tube
Pressure sets O-ring between the outer wall of air inlet pipe.
Further, end-face seal ring is fixed in venting cavity by stopper ring.
Further, throttling stopple includes cock body, and chock is equipped with throttle orifice, and the aperture of throttle orifice is less than the interior of higher-pressure region
Diameter.
Further, end-face seal ring is made using fluorubber of material.
Utility model works principle is as follows:
The utility model install when, shell is locked on bead seat by fastener, make shell with tire into
Row rotation, outer tube is fixed on axle, O-ring is pressed in air inlet pipe that it is made to remain stationary state, and by air inlet pipe
It is connected with gasing tank；
It is close in throttling stopple, air inlet pipe and end face due to the effect for the stopple that throttles when high pressure gas enters rotation shell
Higher-pressure region is formed between blocking, air inlet pipe is tightly pressed on end-face seal ring, forms self sealing structure.
The utility model has the following beneficial effects:
(1) the utility model is simple and reliable for structure, and easy for installation, applied widely, can guarantee at -40 DEG C~+85 DEG C
Environment in use, meet input 0~15bar of bleed pressure, revolving speed 1500r/min；
(2) the utility model has abandoned the structure of traditional bearing rotation joint, and creative proposition uses self-sealing knot
Structure realizes oil-free lubrication rotatory sealing, is able to maintain rotatory sealing in the case where high-voltage high-speed, and use scope is wide, structure
It is compact, securely and reliably.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the utility model embodiment one.
Fig. 2 is the shell cross-sectional view of the utility model embodiment two.
Specific embodiment
It is clear to be more clear the technical solution of the utility model, the utility model is carried out into one with reference to the accompanying drawing
Step description, the technical characteristic of any pair of technical solutions of the utility model carry out the scheme that equivalencing is obtained with conventional reasoning and fall
Enter scope of protection of the utility model.
Appended drawing reference
Shell 1, throttling stopple 2, air inlet pipe 3, end-face seal ring 4, venting cavity 5, air inlet 6, gas outlet 7, horn mouth knot
Structure 8, outer tube 9, O-ring 10, cock body 11, throttle orifice 12, stopper ring 13, ball 14.
Embodiment one
A kind of bearing-free self-sealing high-speed high-pressure rotary joint as shown in the figure, including shell 1, throttling stopple 2, air inlet pipe 3
With end-face seal ring 4；
Venting cavity 5 is equipped in shell, one end of venting cavity is equipped with air inlet 6, and the other end of venting cavity is equipped at least one
Gas outlet 7, throttling stopple are fixed in venting cavity, between air inlet and gas outlet, and end-face seal ring is fixed on venting cavity
Inlet port, end-face seal ring and throttling stopple between form higher-pressure region；
One end of air inlet pipe passes through the air inlet of venting cavity and end-face seal ring is arranged in higher-pressure region, and air inlet pipe is located at height
Pipe end in pressure area is in bell-mouth structure of air 8；
Air inlet pipe outside venting cavity is equipped with outer tube 9, and outer tube is set on the outer wall of air inlet pipe, outer tube
Pressure sets O-ring 10 between the outer wall of air inlet pipe.
Further, end-face seal ring is fixed in venting cavity by stopper ring 13.
Further, throttling stopple includes cock body 11, and chock is equipped with throttle orifice 12, and the aperture of throttle orifice is less than higher-pressure region
Internal diameter.
Further, end-face seal ring is made using fluorubber of material.
In the present embodiment, stopple, stopper ring and end-face seal ring are throttled respectively by bonding, welding or fastener company
The mode connect is fixed in the housing.
Utility model works principle is as follows:
The utility model install when, shell is locked on bead seat by fastener, make shell with tire into
Row rotation, outer tube is fixed on axle, O-ring is pressed in air inlet pipe that it is made to remain stationary state, and by air inlet pipe
It is connected with gasing tank；
It is close in throttling stopple, air inlet pipe and end face due to the effect for the stopple that throttles when high pressure gas enters rotation shell
Higher-pressure region is formed between blocking, air inlet pipe is tightly pressed on end-face seal ring, forms self sealing structure.
Embodiment two
With a kind of bearing-free self-sealing high-speed high-pressure rotary joint described in embodiment one, the difference is that, stop
Circle is equipped with first passage, and end-face seal ring is equipped with second channel, and first passage and second channel are coaxially disposed, and first is logical
Road and second channel are used to across air inlet pipe, and the internal diameter of first passage is greater than the internal diameter of second channel；
On the inner wall of first passage be equipped at least two circle balls 14, when shell is rotated with wheel, stopper ring with
Rolling friction is formed between air inlet pipe, not only can be reduced the damage to air inlet pipe, but also can prevent air inlet pipe from shifting, further
Improve service life.
Claims (4)
1. a kind of bearing-free self-sealing high-speed high-pressure rotary joint, it is characterized in that, including shell, throttling stopple, air inlet pipe and end
Face sealing ring；
Venting cavity is equipped in shell, one end of venting cavity is equipped with air inlet, and the other end of venting cavity is equipped at least one gas outlet,
Throttling stopple is fixed in venting cavity, between air inlet and gas outlet, and end-face seal ring is fixed on the air inlet of venting cavity
End forms higher-pressure region between end-face seal ring and throttling stopple；
One end of air inlet pipe passes through the air inlet of venting cavity and end-face seal ring is arranged in higher-pressure region, and air inlet pipe is located at higher-pressure region
In pipe end be in bell-mouth structure of air；
Air inlet pipe outside venting cavity is equipped with outer tube, and outer tube is set on the outer wall of air inlet pipe, outer tube with into
Pressure sets O-ring between the outer wall of tracheae.
2. a kind of bearing-free self-sealing high-speed high-pressure rotary joint as described in claim 1, it is characterized in that, end-face seal ring is logical
Stopper ring is crossed to be fixed in venting cavity.
3. a kind of bearing-free self-sealing high-speed high-pressure rotary joint as claimed in claim 1 or 2, it is characterized in that, throttle stopple
Including cock body, chock is equipped with throttle orifice, and the aperture of throttle orifice is less than the internal diameter of higher-pressure region.
4. a kind of bearing-free self-sealing high-speed high-pressure rotary joint as claimed in claim 1 or 2, it is characterized in that, end face seal
Circle is made using fluorubber of material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822066717.2U CN209294615U (en) | 2018-12-10 | 2018-12-10 | A kind of bearing-free self-sealing high-speed high-pressure rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822066717.2U CN209294615U (en) | 2018-12-10 | 2018-12-10 | A kind of bearing-free self-sealing high-speed high-pressure rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209294615U true CN209294615U (en) | 2019-08-23 |
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ID=67657981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822066717.2U Active CN209294615U (en) | 2018-12-10 | 2018-12-10 | A kind of bearing-free self-sealing high-speed high-pressure rotary joint |
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| Country | Link |
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| CN (1) | CN209294615U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404642A (en) * | 2018-12-10 | 2019-03-01 | 镇江神行太保科技有限公司 | A kind of bearing-free self-sealing high-speed high-pressure rotary joint |
-
2018
- 2018-12-10 CN CN201822066717.2U patent/CN209294615U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404642A (en) * | 2018-12-10 | 2019-03-01 | 镇江神行太保科技有限公司 | A kind of bearing-free self-sealing high-speed high-pressure rotary joint |
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