CN219453203U - Pneumatic rotary joint - Google Patents
Pneumatic rotary joint Download PDFInfo
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- CN219453203U CN219453203U CN202320807761.2U CN202320807761U CN219453203U CN 219453203 U CN219453203 U CN 219453203U CN 202320807761 U CN202320807761 U CN 202320807761U CN 219453203 U CN219453203 U CN 219453203U
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Abstract
The utility model relates to a pneumatic rotary joint. The utility model aims to provide a pneumatic rotary joint which rotates smoothly. The technical scheme includes that the novel high-pressure sealing joint comprises a joint main body, a bearing sleeve, a joint housing, a first bearing, a second bearing, a sealing ring assembly and a clamp spring, wherein the joint main body comprises a joint connecting part, a joint tightening part and a joint abutting part, the bearing sleeve is sleeved on the joint abutting part, the first bearing, the second bearing and the sealing ring assembly are arranged between the joint abutting part and the bearing sleeve, the bearing sleeve is connected with the joint main body through the clamp spring, and the joint housing is sleeved outside the bearing sleeve and one end of the joint housing is connected with the bearing sleeve. The utility model has the advantages that: the symmetrical design of the sealing rings in the double bearings ensures that the high-speed rotation is smooth and is not easy to be blocked, and the whole service life of the product is prolonged.
Description
Technical Field
The utility model relates to a pneumatic rotary joint.
Background
Pneumatic rotary joints are transitional connection sealing devices that input gaseous media from a static system to a dynamic rotary system. The pneumatic rotary joint is a series of products specially designed for pneumatic control, and is widely applied to various industries such as metallurgical machinery, rolling machinery, papermaking machinery, construction machinery and the like. When the conventional pneumatic rotary joint is used in a rotary mode through customer feedback, the rotary joint is unsmooth in rotation and easy to clamp, and the problem is particularly remarkable in high-speed rotation, so that the service life of the pneumatic rotary joint is lower, and improvement is needed.
Disclosure of Invention
In order to solve the problems, the utility model aims to provide a pneumatic rotary joint which rotates smoothly.
The pneumatic rotary joint adopts the technical scheme that the pneumatic rotary joint comprises a joint main body, a bearing sleeve, a joint housing, a first bearing, a second bearing, a sealing ring assembly and a clamp spring, wherein the joint main body comprises a joint connecting part, a joint tightening part and a joint abutting part, the bearing sleeve is sleeved on the joint abutting part, the first bearing, the second bearing and the sealing ring assembly are arranged between the joint abutting part and the bearing sleeve, the bearing sleeve is connected with the joint main body through the clamp spring, and the joint housing is sleeved outside the bearing sleeve and one end of the joint housing is connected with the bearing sleeve.
The joint butt joint part is provided with a joint first step for positioning the first bearing, a first bearing sleeve joint boss, a sealing ring limiting groove, a second bearing sleeve joint boss and a clamping spring positioning groove for clamping the clamping spring, and a first bearing mounting groove, a sealing ring mounting groove and a second bearing mounting groove are arranged in the bearing sleeve; the first bearing is arranged between the first bearing sleeve joint boss and the first bearing mounting groove, the sealing ring assembly is arranged between the sealing ring limiting groove and the sealing ring mounting groove, and the second bearing is arranged between the second bearing sleeve joint boss and the second bearing mounting groove.
The bearing sleeve is provided with a sleeve connection notch near the side of the joint main body, a sleeve connection butt joint port positioned with the bearing sleeve is arranged in the joint shell, and the end part of the joint shell is provided with a shell connection protrusion corresponding to the sleeve connection notch.
The shell connecting protrusion is riveted in the sleeve connecting notch.
The sealing ring assembly comprises at least two O-shaped sealing rings which are arranged side by side.
The diameter of the first bearing mounting groove is the same as that of the second bearing mounting groove, and the diameter of the first bearing mounting groove is larger than that of the sealing ring mounting groove.
The first bearing and the second bearing are respectively arranged at two sides of the sealing ring assembly.
The bearing sleeve is characterized in that a second sealing ring installation notch is formed in the middle of the bearing sleeve, and a second sealing ring is sleeved on the second sealing ring installation notch.
The number of the second sealing rings is 2.
The joint connecting part is provided with joint external threads, and the joint tightening part is of a regular hexagon structure.
The pneumatic rotary joint has the advantages that: the symmetrical design of the sealing rings in the double bearings ensures that the high-speed rotation is smooth and is not easy to be blocked, the bearing sleeve and the joint housing are connected tightly and reliably by riveting, and the whole service life of the product is prolonged.
Drawings
The utility model will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a cross-sectional view of an elbow pneumatic rotary joint of the present utility model;
FIG. 2 is a cross-sectional view of the joint body of the present utility model;
FIG. 3 is a cross-sectional view of the bearing cartridge of the present utility model;
FIG. 4 is a cross-sectional view of the joint housing of the present utility model;
fig. 5 is a cross-sectional view of the straight pneumatic rotary joint of the present utility model.
Detailed Description
In the embodiment 1, as shown in fig. 1-4, the elbow pneumatic rotary joint comprises a joint main body 1, a bearing sleeve 2, a joint housing 3, a joint cap 4, a second joint housing 41, a first bearing 5, a second bearing 6, a sealing ring assembly 7 and a clamp spring 8, wherein the joint main body 1 comprises a joint connecting part 10, a joint tightening part 11 and a joint abutting part 12, the bearing sleeve 2 is sleeved on the joint abutting part 12, the first bearing 5, the second bearing 6 and the sealing ring assembly 7 are arranged between the joint abutting part 12 and the bearing sleeve 2, the bearing sleeve 2 and the joint main body 1 are connected through the clamp spring 8, the joint housing 3 is sleeved outside the bearing sleeve 2, one end of the joint housing is connected with the bearing sleeve 2, the second joint housing 41 is sleeved at the other end of the joint housing 3 and is fixed with the joint housing 3 through a second clamp spring 42, the second joint housing 41 is vertically arranged with the joint housing 3, and the joint cap 4 is clamped at the other end of the second joint housing 41.
The joint butt joint part 12 is provided with a joint first step 15 for positioning the first bearing 5, a first bearing sleeve joint boss 16, a sealing ring limiting groove 17, a second bearing sleeve joint boss 18 and a clamping spring positioning groove 19 for clamping the clamping spring 8, and a first bearing mounting groove 21, a sealing ring mounting groove 22 and a second bearing mounting groove 23 are arranged in the bearing sleeve part 2; the first bearing 5 is arranged between the first bearing sleeve joint boss 16 and the first bearing mounting groove 21, the sealing ring assembly 7 is arranged between the sealing ring limiting groove 17 and the sealing ring mounting groove 22, the second bearing 6 is arranged between the second bearing sleeve joint boss 18 and the second bearing mounting groove 23, and the double bearings are added with sealing rings, so that the high-speed rotation is smooth and stable, the clamping stagnation is not easy, and the service life of the product is long.
The bearing sleeve member 2 is provided with a sleeve connection notch 25 near the side of the joint main body 1, a sleeve connection butt joint 27 positioned with the bearing sleeve member 2 is arranged in the joint housing 3, and a housing connection protrusion 26 corresponding to the sleeve connection notch 25 is arranged at the end part of the joint housing 3.
The shell connecting protrusion 26 is riveted in the sleeve connecting notch 25, so that the connection is more compact and reliable, and the service life is further prolonged.
The sealing ring assembly 7 comprises at least two O-shaped sealing rings which are arranged side by side, and the sealing waterproof effect is further improved.
The diameter of the first bearing mounting groove 21 is the same as that of the second bearing mounting groove 23, the diameter of the first bearing mounting groove 21 is larger than that of the sealing ring mounting groove 22, and the positioning is accurate.
The first bearing 5 and the second bearing 6 are respectively arranged at two sides of the sealing ring assembly 7, and the symmetrical structure further improves the stability and fluency of rotation.
The bearing external member 2 middle part is equipped with second sealing washer installation recess 29, the cover is equipped with second sealing washer 30 on the second sealing washer installation recess 29, the quantity of second sealing washer 30 is 2, improves the waterproof leakproofness of product.
The joint connecting part 10 is provided with joint external threads, and the joint tightening part 11 is of a regular hexagonal structure, so that the installation is convenient, and the slip is not easy to occur.
In the embodiment 2, as shown in fig. 5, the straight-head pneumatic rotary joint according to the present utility model comprises a joint main body 1, a bearing sleeve 2, a joint housing 43, a joint cap 4, a first bearing 5, a second bearing 6, a seal ring assembly 7 and a clamp spring 8, wherein the joint main body 1 comprises a joint connecting portion 10, a joint tightening portion 11 and a joint abutting portion 12, the bearing sleeve 2 is sleeved on the joint abutting portion 12, the first bearing 5, the second bearing 6 and the seal ring assembly 7 are arranged between the joint abutting portion 12 and the bearing sleeve 2, the bearing sleeve 2 and the joint main body 1 are connected through the clamp spring 8, the joint housing 43 is sleeved outside the bearing sleeve 2, one end of the joint housing is connected with the bearing sleeve 2, and the joint cap 4 is clamped at the other end of the joint housing 43.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. A pneumatic rotary joint, characterized in that: including joint main part (1), bearing external member (2), joint shell (3), first bearing (5), second bearing (6), sealing washer subassembly (7) and jump ring (8), joint main part (1) are including joint connecting portion (10), joint tightening portion (11) and joint butt joint portion (12), bearing external member (2) cover is established joint butt joint portion (12) are last, be equipped with between bearing external member (2) first bearing (5), second bearing (6) with sealing washer subassembly (7), bearing external member (2) with joint main part (1) are passed through jump ring (8) are connected, joint shell (3) cover is established outside bearing external member (2) and its one end with bearing external member (2) are connected.
2. A pneumatic rotary joint according to claim 1, wherein: the joint butt joint part (12) is provided with a joint first step (15) for positioning the first bearing (5), a first bearing sleeve joint boss (16), a sealing ring limiting groove (17), a second bearing sleeve joint boss (18) and a clamping spring positioning groove (19) for clamping the clamping spring (8), and a first bearing mounting groove (21), a sealing ring mounting groove (22) and a second bearing mounting groove (23) are arranged in the bearing sleeve part (2);
the first bearing (5) is arranged between the first bearing sleeve joint boss (16) and the first bearing mounting groove (21), the sealing ring assembly (7) is arranged between the sealing ring limiting groove (17) and the sealing ring mounting groove (22), and the second bearing (6) is arranged between the second bearing sleeve joint boss (18) and the second bearing mounting groove (23).
3. A pneumatic rotary joint according to claim 1, wherein: the bearing sleeve member (2) is close to the side of the joint main body (1) and is provided with a sleeve connection notch (25), a sleeve connection opposite port (27) positioned by the bearing sleeve member (2) is arranged in the joint housing (3), and a housing connection protrusion (26) corresponding to the sleeve connection notch (25) is arranged at the end part of the joint housing (3).
4. A pneumatic rotary joint according to claim 3, characterized in that: the shell connecting protrusion (26) is riveted in the sleeve connecting notch (25).
5. A pneumatic rotary joint according to claim 1, wherein: the sealing ring assembly (7) comprises at least two O-shaped sealing rings which are arranged side by side.
6. A pneumatic rotary joint according to claim 2, characterized in that: the diameter of the first bearing mounting groove (21) is the same as that of the second bearing mounting groove (23), and the diameter of the first bearing mounting groove (21) is larger than that of the sealing ring mounting groove (22).
7. A pneumatic rotary joint according to claim 2, characterized in that: the first bearing (5) and the second bearing (6) are respectively arranged at two sides of the sealing ring assembly (7).
8. A pneumatic rotary joint according to claim 1, wherein: the bearing sleeve member (2) is provided with a second sealing ring installation notch (29) in the middle, and a second sealing ring (30) is sleeved on the second sealing ring installation notch (29).
9. A pneumatic rotary joint according to claim 8, wherein: the number of the second sealing rings (30) is 2.
10. A pneumatic rotary joint according to claim 1, wherein: the joint connecting part (10) is provided with joint external threads, and the joint tightening part (11) is of a regular hexagon structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320807761.2U CN219453203U (en) | 2023-04-13 | 2023-04-13 | Pneumatic rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320807761.2U CN219453203U (en) | 2023-04-13 | 2023-04-13 | Pneumatic rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219453203U true CN219453203U (en) | 2023-08-01 |
Family
ID=87386790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320807761.2U Active CN219453203U (en) | 2023-04-13 | 2023-04-13 | Pneumatic rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219453203U (en) |
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2023
- 2023-04-13 CN CN202320807761.2U patent/CN219453203U/en active Active
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| GR01 | Patent grant |