CN212745458U - One-way partial pressure formula rotary joint - Google Patents
One-way partial pressure formula rotary joint Download PDFInfo
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- CN212745458U CN212745458U CN202021279772.0U CN202021279772U CN212745458U CN 212745458 U CN212745458 U CN 212745458U CN 202021279772 U CN202021279772 U CN 202021279772U CN 212745458 U CN212745458 U CN 212745458U
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- ball
- hollow shaft
- rotary joint
- wall
- sealing ring
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Abstract
The utility model belongs to the technical field of the rotary joint, specifically be an one-way partial pressure formula rotary joint, including casing, hollow shaft, spring pad, quiet sealing ring, sealing washer, ceramic ring, ball installation cavity, installing port, ball seat and sealed lid, hollow shaft activity suit is in the casing, and the tip of hollow shaft is equipped with the quiet sealing ring that is located the casing inside, the tip of quiet sealing ring is equipped with the spring pad, and is equipped with the sealing washer that is located between the spring pad on the quiet sealing ring outer wall, be equipped with the spring between spring pad and the shells inner wall, be equipped with ceramic ring between quiet sealing ring and the hollow shaft, the ball installation cavity has been seted up on the inner wall of casing. This one-way partial pressure formula rotary joint is through seting up the ball installation cavity on the casing to pack the ball in the ball installation cavity, assist when rotatory to the air shaft, the assembly is comparatively simple and convenient, and the ball can be according to the wearing and tearing condition screening change, uses and the maintenance cost is low.
Description
Technical Field
The utility model relates to a rotary joint technical field especially relates to an one-way partial pressure formula rotary joint.
Background
In many industries, the transport of materials is required by means of pneumatic or hydraulic forces. The conveyed substance is in a simple substance state or a gas-solid-liquid-solid mixed state. If the pipeline needs to rotate simultaneously when conveying materials, a special structure of a rotary joint is needed at the joint of the rotary pipeline and the fixed pipeline.
The existing one-way pressure-dividing type rotary joint usually adopts a bearing to assist a hollow shaft to rotate, however, the rotary joint adopting the mode is troublesome to assemble, and the use and maintenance costs are high.
In order to solve the above problems, a unidirectional voltage division type rotary joint is provided in the present application.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
For solving the technical problem who exists among the background art, the utility model provides an one-way partial pressure formula rotary joint has convenient assembling, uses and maintains characteristics with low costs.
(II) technical scheme
In order to solve the technical problem, the utility model provides a one-way pressure-dividing type rotary joint, which comprises a shell, a hollow shaft, a spring pad, a static sealing ring, a ceramic ring, a ball mounting cavity, a mounting port, balls, a ball seat and a sealing cover;
the hollow shaft is movably sleeved in the shell, a static sealing ring positioned in the shell is arranged at the end part of the hollow shaft, a spring pad is arranged at the end part of the static sealing ring, a sealing ring positioned between the spring pads is arranged on the outer wall of the static sealing ring, a spring is arranged between the spring pad and the inner wall of the shell, and a ceramic ring is arranged between the static sealing ring and the hollow shaft;
the ball installation cavity is formed in the inner wall of the shell, an installation opening communicated with the ball installation cavity is formed in the outer wall of the shell, balls are filled in the ball installation cavity, a ball seat is movably sleeved in the ball installation cavity, a sealing cover is movably assembled at the position of the installation opening, and the sealing cover is fixed on the shell through screws.
Preferably, a sealing gasket is arranged between the sealing cover and the mounting hole, an oil filling pipe is fixedly sleeved on the sealing cover, and a pipe cover is sleeved on the top of the oil filling pipe in a threaded manner.
Preferably, a sealing packing is arranged between the end part of the shell and the outer wall of the hollow shaft, the end part of the shell is locked with a gland through a fixing bolt, and the sealing packing is tightly pressed and fixed between the inner wall of the shell and the outer wall of the hollow shaft through the gland.
Preferably, the outer wall of the hollow shaft is provided with a ball groove for rolling balls.
Preferably, the ball mounting cavity is annular, and the ball is filled into the annular ball mounting cavity through the mounting opening.
Preferably, the ball seat is fixed at the bottom of the sealing cover, and an arc-shaped groove matched with the ball is formed in the bottom of the ball seat.
Preferably, the oil filling pipe penetrates through the sealing cover and the ball seat to be communicated with the ball mounting cavity.
The above technical scheme of the utility model has following profitable technological effect:
1. this one-way partial pressure formula rotary joint is through seting up the ball installation cavity on the casing to pack the ball in the ball installation cavity, assist when rotatory to the air shaft, the assembly is comparatively simple and convenient, and the ball can be according to the wearing and tearing condition screening change, uses and the maintenance cost is low.
2. This one-way partial pressure formula rotary joint through setting up sealing filler and gland, under the condition that does not influence the hollow shaft rotation, seals the outside of the junction of casing and hollow shaft, when improving this rotary joint and preventing leaking the ability, avoids the influence that dust etc. used the ball.
3. This one-way partial pressure formula rotary joint through setting up sealed lid and sealed the pad, can seal the ball installation cavity to avoid dust, water etc. to get into the ball installation cavity, improve the life of ball.
4. This one-way partial pressure formula rotary joint through set up the oiling pipe that extends to ball installation intracavity on the closing cap, conveniently pours into lubricating oil into to ball installation intracavity to reduce the wearing and tearing of ball, improve its life and ensure the rotatory smoothness nature of hollow shaft.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the ball groove structure of the present invention;
FIG. 3 is an enlarged view of the structure A of FIG. 1 according to the present invention;
fig. 4 is a cross-sectional view of the sealing cap and the ball seat of fig. 3 according to the present invention.
Reference numerals:
1. a housing; 2. a hollow shaft; 21. a ball groove; 3. a spring; 4. a spring pad; 5. a static seal ring; 6. a seal ring; 7. a ceramic ring; 8. a ball mounting cavity; 9. an installation port; 10. a ball bearing; 11. a ball seat; 12. a sealing cover; 13. a gasket; 14. an oil filling pipe; 15. a tube cover; 16. a gland; 17. and (5) sealing and filling.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Specific embodiments of the present invention will be described below with reference to the accompanying drawings.
Referring to fig. 1, the present invention provides a technical solution: a one-way partial pressure type rotary joint comprises a shell 1, a hollow shaft 2, a spring 3, a spring pad 4, a static sealing ring 5, a sealing ring 6, a ceramic ring 7, a ball mounting cavity 8, a mounting hole 9, a ball 10, a ball seat 11 and a sealing cover 12.
The movable sleeve of the hollow shaft 2 is arranged in the shell 1, the end part of the hollow shaft 2 is provided with a static sealing ring 5 positioned in the shell 1, the end part of the static sealing ring 5 is provided with a spring pad 4, the outer wall of the static sealing ring 5 is provided with a sealing ring 6 positioned between the spring pad 4, a spring 3 is arranged between the spring pad 4 and the inner wall of the shell 1, and a ceramic ring 7 is arranged between the static sealing ring 5 and the hollow shaft 2.
And a sealing packing 17 is arranged between the end part of the shell 1 and the outer wall of the hollow shaft 2, the end part of the shell 1 is locked with a gland 16 through a fixed bolt, and the sealing packing 17 is tightly pressed and fixed between the inner wall of the shell 1 and the outer wall of the hollow shaft 2 through the gland 16.
In the present embodiment, the sealing packing 17 and the gland 16 are used to seal the outside of the joint between the housing 1 and the hollow shaft 2 without affecting the rotation of the hollow shaft 2, thereby improving the leakage prevention capability of the rotary joint and avoiding the influence of dust and the like on the balls 10.
As shown in fig. 2, a ball mounting cavity 8 is formed in the inner wall of the housing 1, a mounting opening 9 communicated with the ball mounting cavity 8 is formed in the outer wall of the housing 1, and balls 10 are filled in the ball mounting cavity 8.
The ball mounting chamber 8 is annular, and the ball 10 is filled in the annular ball mounting chamber 8 through the mounting opening 9.
In this embodiment, when the hollow shaft 2 is mounted, the ball 10 is filled into the annular ball mounting cavity 8 through the mounting port 9, so that the ball 10 can be used to assist the rotation of the hollow shaft 2, thereby ensuring the smoothness of the rotation of the hollow shaft 2.
The outer wall of the hollow shaft 2 is provided with a ball groove 21 for rolling the ball 10.
The hollow shaft 2 and the balls 10 are positioned when being installed and the hollow shaft 2 is limited by the annular ball groove 21 formed on the outer wall of the hollow shaft 2.
As shown in fig. 3, a ball seat 11 is movably sleeved in the ball mounting cavity 8, the ball seat 11 is fixed at the bottom of the sealing cover 12, and an arc-shaped groove matched with the ball 10 is formed at the bottom of the ball seat 11.
The ball seat 11 is utilized to seal the mounting opening 9, and a closed and complete annular cavity structure is formed between the ball seat and the ball mounting cavity 8, so that the rolling of the ball 10 in the ball mounting cavity 8 is facilitated.
The mounting opening 9 is movably provided with a sealing cover 12, the sealing cover 12 is fixed on the shell 1 through screws, and a sealing gasket 13 is arranged between the sealing cover 12 and the mounting opening 9.
The sealing cover 12 and the sealing gasket 13 are matched to seal the mounting opening 9, so that dust and water are prevented from entering the ball mounting cavity 8 through the mounting opening 9 to affect the ball 10.
An oil filling pipe 14 is fixedly sleeved on the sealing cover 12, and a pipe cover 15 is sleeved on the top of the oil filling pipe 14 in a threaded manner.
The oil filling pipe 14 is connected to the ball mounting chamber 8 through the seal cover 12 and the ball seat 11.
Through set up the oiling pipe 14 that extends to in the ball installation cavity 8 on sealed lid 12, conveniently inject lubricating oil into ball installation cavity 8 to reduce the wearing and tearing of ball 10, improve its life and ensure the rotatory smoothness nature of hollow shaft 2.
The utility model discloses a theory of operation and use flow: during installation, the spring 3, the spring pad 4, the static sealing ring 5, the ceramic ring 7 and the hollow shaft 2 are sequentially installed inside the shell 1, the ball groove 21 in the outer wall of the hollow shaft 2 is opposite to the bottom of the ball installation cavity 8, then the ball 10 is filled into the ball installation cavity 8 through the installation opening 9, after the ball 10 is installed, the sealing cover 12 is covered and fixed on the shell 1 through screws, finally, the sealing packing 17 is filled between the inner wall of the end portion of the shell 1 and the hollow shaft 2, and after the sealing packing 17 is tightly pressed through the pressing cover 16, the pressing cover 16 is locked on the shell 1 through bolts.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (7)
1. A one-way partial pressure type rotary joint is characterized by comprising a shell (1), a hollow shaft (2), a spring (3), a spring pad (4), a static sealing ring (5), a sealing ring (6), a ceramic ring (7), a ball mounting cavity (8), a mounting hole (9), a ball (10), a ball seat (11) and a sealing cover (12);
the hollow shaft (2) is movably sleeved in the shell (1), a static sealing ring (5) positioned in the shell (1) is arranged at the end part of the hollow shaft (2), a spring pad (4) is arranged at the end part of the static sealing ring (5), a sealing ring (6) positioned between the spring pads (4) is arranged on the outer wall of the static sealing ring (5), a spring (3) is arranged between the spring pad (4) and the inner wall of the shell (1), and a ceramic ring (7) is arranged between the static sealing ring (5) and the hollow shaft (2);
the ball installation cavity (8) has been seted up on the inner wall of casing (1), and set up installing port (9) of intercommunication ball installation cavity (8) on casing (1) outer wall, ball installation cavity (8) are filled there are ball (10), and ball installation cavity (8) in the activity cover be equipped with ball seat (11), installing port (9) department activity is equipped with sealed lid (12), sealed lid (12) are through the fix with screw on casing (1).
2. The unidirectional voltage-dividing type rotary joint as claimed in claim 1, wherein a sealing gasket (13) is arranged between the sealing cover (12) and the mounting port (9), an oil filling pipe (14) is fixedly sleeved on the sealing cover (12), and a pipe cover (15) is threadedly sleeved on the top of the oil filling pipe (14).
3. A unidirectional pressure-dividing rotary joint according to claim 1, characterized in that a sealing packing (17) is arranged between the end of the housing (1) and the outer wall of the hollow shaft (2), and the end of the housing (1) is locked with a gland (16) by a fixing bolt, and the sealing packing (17) is fixed between the inner wall of the housing (1) and the outer wall of the hollow shaft (2) by the gland (16) in a pressing manner.
4. The unidirectional voltage division type rotary joint according to claim 1, wherein the outer wall of the hollow shaft (2) is provided with a ball groove (21) for rolling the balls (10).
5. A unidirectional pressure-dividing rotary joint according to claim 1, wherein the ball mounting chamber (8) is annular, and the balls (10) are filled into the annular ball mounting chamber (8) through the mounting openings (9).
6. The unidirectional voltage division type rotary joint according to claim 1, wherein the ball seat (11) is fixed at the bottom of the sealing cover (12), and the bottom of the ball seat (11) is provided with an arc-shaped groove matched with the ball (10).
7. A unidirectional pressure-dividing type rotary joint according to claim 2, wherein the oil filling pipe (14) is communicated with the ball mounting cavity (8) through the sealing cover (12) and the ball seat (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021279772.0U CN212745458U (en) | 2020-07-04 | 2020-07-04 | One-way partial pressure formula rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021279772.0U CN212745458U (en) | 2020-07-04 | 2020-07-04 | One-way partial pressure formula rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212745458U true CN212745458U (en) | 2021-03-19 |
Family
ID=75020593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021279772.0U Active CN212745458U (en) | 2020-07-04 | 2020-07-04 | One-way partial pressure formula rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212745458U (en) |
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2020
- 2020-07-04 CN CN202021279772.0U patent/CN212745458U/en active Active
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