CN206918500U - A kind of sealing contact surface energy self-detaching swivel joint - Google Patents
A kind of sealing contact surface energy self-detaching swivel joint Download PDFInfo
- Publication number
- CN206918500U CN206918500U CN201720615133.9U CN201720615133U CN206918500U CN 206918500 U CN206918500 U CN 206918500U CN 201720615133 U CN201720615133 U CN 201720615133U CN 206918500 U CN206918500 U CN 206918500U
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- China
- Prior art keywords
- swivel joint
- spring
- sealing ring
- ring seat
- contact surface
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Abstract
The utility model discloses a kind of sealing contact surface energy self-detaching swivel joint, it includes housing, middle cover, tail-hood, rotating shaft and dynamic sealing ring seat, the dynamic sealing ring seat sealed set is in the middle cover, the rotating shaft, cooling passage is correspondingly offered in tail-hood and dynamic sealing ring seat, sealing ring is correspondingly arranged in the dynamic sealing ring seat and rotating shaft, convex shoulder is provided with the dynamic sealing ring seat, and it is provided with piston ring in the dynamic sealing ring seat, first spring is installed between the side of the convex shoulder and the piston ring, the end in sealing contact of the rotating shaft is provided with packing ring, second spring is installed between the opposite side of the convex shoulder and the packing ring, the elastic force of the second spring is more than the elastic force of the first spring under much compression amount.Above-mentioned swivel joint can ensure that two sealing rings disengage automatically in the case of obstructed coolant.It is not only simple in structure, is easy to process；And cost is low, the service life of swivel joint is extended.
Description
Technical field
A kind of swivel joint is the utility model is related to, is connect more particularly, to a kind of rotation of sealing contact surface energy self-detaching
Head.
Background technology
At present, for cooling swivel joint in machining center when obstructed coolant continuous high speed rotates, sealing ring is done
Friction, it can so have a strong impact on the service life of swivel joint.Therefore all it is to use the contact rotation compared with low velocity to connect mostly
Head.But diaphragm is installed additional on swivel joint in the revolute joint portion producer for being used for cooling in machining center of corresponding fair speed
Spring structure, the sealing contact surface of swivel joint is set to disengage automatically in obstructed coolant by diaphragm spring structure.But film
The shortcomings that processing inconvenience and higher cost be present in the automatic trip gear of flat spring structure.
Utility model content
The purpose of this utility model is to provide a kind of sealing contact surface energy self-detaching swivel joint, and it, which has, is easy to
The characteristics of processing is low with cost, to solve above-mentioned existing for cooling high-speed joint in machining center in the prior art ask
Topic.
To use following technical scheme up to this purpose, the utility model：
A kind of sealing contact surface energy self-detaching swivel joint, it includes housing, middle cover, tail-hood, rotating shaft and dynamic sealing
Ring seat, the housing, middle cover and tail-hood assemble successively to be integrated, and the rotating shaft can be rotatably mounted to the housing by bearing
Interior, the dynamic sealing ring seat sealed set correspondingly offers cold in the middle cover in the rotating shaft, tail-hood and dynamic sealing ring seat
But liquid passage, sealing ring is correspondingly arranged in the dynamic sealing ring seat and rotating shaft, both sealing rings cooperatively form sealing contact surface,
Wherein, convex shoulder is provided with the dynamic sealing ring seat, and piston ring is provided with the dynamic sealing ring seat, the convex shoulder
First spring is installed, the end in sealing contact of the rotating shaft is provided with packing ring, the convex shoulder between side and the piston ring
Opposite side and the packing ring between second spring is installed, the elastic force of the second spring is more than the first bullet under much compression amount
The elastic force of spring.
Especially, the surface of the housing is provided with several radiating fins.
Especially, first spring and second spring are arranged symmetrically using the center of the dynamic sealing ring seat as symmetric points.
Especially, screwed hole is correspondingly offered on the housing, middle cover and tail-hood, fixing screws pass through middle cover simultaneously from tail-hood
It lock onto on the housing.
Especially, the cooling passage in the tail-hood is any of through type or 90 ° of bendables.
Especially, the surface of the housing offers several screw threads of the medium leaked out for discharging swivel joint
Hole.
The beneficial effects of the utility model are that the sealing contact surface energy self-detaching rotation compared with prior art connects
Head can ensure in the case of obstructed coolant, two close according to piston principle and acting force of the spring and reaction force principle
Seal ring disengages automatically, avoids that dry friction occurs.It is not only simple in structure, is easy to process；And cost is low, rotation is greatly extended
The service life of joint.
Brief description of the drawings
Fig. 1 is the knot for the sealing contact surface energy self-detaching swivel joint that the utility model embodiment 1 provides
Structure schematic diagram.
Embodiment
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by embodiment.
Refer to shown in Fig. 1, Fig. 1 is that the sealing contact surface that the utility model embodiment 1 provides can disengage automatically
Swivel joint structural representation.
In the present embodiment, a kind of sealing contact surface energy self-detaching swivel joint include housing 1, middle cover 2, tail-hood 3, turn
Axle 4 and dynamic sealing ring seat 5, screwed hole are correspondingly offered on the housing 1, middle cover 2 and tail-hood 3, fixing screws 6 are worn from tail-hood 3
Cross middle cover 2 and lock onto on the housing 1 and connect as one both, 7 energy are held in the both ends of the rotating shaft 4 by high-speed rotating shaft
It is rotatably mounted in the housing 1, the surface of the housing 1 is extended with several radiating fins 8 laterally, to rotate at a high speed
The radiating increase heat radiation sealed of bearing 7 face, protects bearing.
The sealed set of dynamic sealing ring seat 5 is right in the rotating shaft 4, tail-hood 3 and dynamic sealing ring seat 5 in the middle cover 2
Cooling passage 9 should be offered, sealing ring 10 is correspondingly arranged in the dynamic sealing ring seat 5 and rotating shaft 4, both sealing rings 10 are matched somebody with somebody
Conjunction forms sealing contact surface, convex shoulder 11 is provided with the dynamic sealing ring seat 5, and be provided with one in the dynamic sealing ring seat 5
Group piston ring 12, is provided with the first spring 13 between the side of the convex shoulder 11 and the piston ring 12, the rotating shaft 4 it is close
Sealing-in contravention is provided with packing ring 14, is provided with second spring 15 between the opposite side and the packing ring 14 of the convex shoulder 11, together
Elastic force etc. the second spring 15 under decrement is more than the elastic force of the first spring 13.
First spring 13 and second spring 15 are arranged symmetrically using the center of the dynamic sealing ring seat 5 as symmetric points, institute
The surface for stating housing 1 offers several screwed holes of the medium leaked out for discharging swivel joint.It is cold in the tail-hood 3
But liquid passage is 90 ° of bendable structures.
When swivel joint inside stream is connected with pressure medium, pressure medium promotes piston ring 12 to move forward, and promotes first
Spring 13, the first spring 13 are that two sealing rings 10 provide enough sealings initial spring force, make inside have pressure medium will not
Leak into outside pipeline.When inside does not have pressure medium, the first spring 13 promotes piston ring 12 to be moved rearwards, and returns to initial bit
Put, the first spring 13 is now inelastic, while the spring force of second spring 15 is more than the first spring 13, promotes dynamic sealing ring seat 5
On sealing ring 10 be moved rearwards, sealing surface disengages automatically, and sealing surface does not contact during rotary work, so as to avoid dry friction.
Above example simply elaborates general principle and characteristic of the present utility model, and the utility model is not by above-mentioned example
Limitation, on the premise of the spirit and scope of the utility model is not departed from, the utility model also has various change and change, these changes
Change and change and both fall within claimed the scope of the utility model.The utility model requires protection scope will by appended right
Ask book and its equivalent thereof.
Claims (6)
1. a kind of sealing contact surface energy self-detaching swivel joint, it includes housing, middle cover, tail-hood, rotating shaft and rotary packing ring
Seat, the housing, middle cover and tail-hood assemble successively to be integrated, and the rotating shaft can be rotatably mounted to the housing by bearing
Interior, the dynamic sealing ring seat sealed set correspondingly offers cold in the middle cover in the rotating shaft, tail-hood and dynamic sealing ring seat
But liquid passage, sealing ring is correspondingly arranged in the dynamic sealing ring seat and rotating shaft, both sealing rings cooperatively form sealing contact surface,
Characterized in that, being provided with convex shoulder in the dynamic sealing ring seat, and piston ring is provided with the dynamic sealing ring seat, it is described convex
First spring is installed, the end in sealing contact of the rotating shaft is provided with packing ring, described between the side of shoulder and the piston ring
Second spring is installed, the elastic force of the second spring is more than under much compression amount between the opposite side of convex shoulder and the packing ring
The elastic force of first spring.
2. sealing contact surface energy self-detaching swivel joint according to claim 1, it is characterised in that the housing
Surface is provided with several radiating fins.
3. sealing contact surface energy self-detaching swivel joint according to claim 1, it is characterised in that first bullet
Spring and second spring are arranged symmetrically using the center of the dynamic sealing ring seat as symmetric points.
4. sealing contact surface energy self-detaching swivel joint according to claim 1, it is characterised in that the housing,
Screwed hole is correspondingly offered on middle cover and tail-hood, fixing screws through middle cover and are lock onto on the housing from tail-hood.
5. sealing contact surface energy self-detaching swivel joint according to claim 1, it is characterised in that in the tail-hood
Cooling passage be any of through type or 90 ° of bendables.
6. sealing contact surface energy self-detaching swivel joint according to claim 1, it is characterised in that the housing
Surface offers several screwed holes of the medium leaked out for discharging swivel joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720615133.9U CN206918500U (en) | 2017-05-27 | 2017-05-27 | A kind of sealing contact surface energy self-detaching swivel joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720615133.9U CN206918500U (en) | 2017-05-27 | 2017-05-27 | A kind of sealing contact surface energy self-detaching swivel joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206918500U true CN206918500U (en) | 2018-01-23 |
Family
ID=61308066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720615133.9U Active CN206918500U (en) | 2017-05-27 | 2017-05-27 | A kind of sealing contact surface energy self-detaching swivel joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206918500U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111609233A (en) * | 2020-06-03 | 2020-09-01 | 曾昭阳 | Plug-in electric power rotary joint |
-
2017
- 2017-05-27 CN CN201720615133.9U patent/CN206918500U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111609233A (en) * | 2020-06-03 | 2020-09-01 | 曾昭阳 | Plug-in electric power rotary joint |
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