CN207989735U - A kind of turntable transmission shaft movable sealing structure - Google Patents
A kind of turntable transmission shaft movable sealing structure Download PDFInfo
- Publication number
- CN207989735U CN207989735U CN201820352521.7U CN201820352521U CN207989735U CN 207989735 U CN207989735 U CN 207989735U CN 201820352521 U CN201820352521 U CN 201820352521U CN 207989735 U CN207989735 U CN 207989735U
- Authority
- CN
- China
- Prior art keywords
- ring
- transmission shaft
- stationary seal
- seal ring
- packing ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
A kind of turntable transmission shaft movable sealing structure, rotary packing ring is coaxially installed with by fixing device on the transmission shaft, the outboard end setting of the rotary table base is fluted, stationary seal ring is plugged in across transmission shaft in groove, stationary seal ring is located at the outside of rotary packing ring, it is provided with O-ring II between rotary packing ring outboard end and the inner end of stationary seal ring, O-ring III is provided between stationary seal ring and groove.When the transmission shaft rotation of turntable, rotary packing ring follows transmission shaft to rotate, due to being provided with disc spring between stationary seal ring and turntable matrix, therefore disc spring Flexible change therewith, pressure between rotary packing ring and stationary seal ring is to increase or reduce, the compression surplus of O-ring II between rotary packing ring and stationary seal ring changes therewith, realize that rotary packing ring changes with stationary seal ring relative rotation resistance with the compression surplus of O-ring II and changes, to realize that frictional resistance is adjustable, do not influenced with rotary table base concentricity by transmission shaft outer round surface roughness and transmission shaft.
Description
Technical field
The utility model is related to protection and monitor fields, and in particular to a kind of turntable transmission shaft movable sealing structure.
Background technology
For monitoring field, for turntable mainly in forest fire protection, coast defence and image trace occasion, transmission uses torque motor
It is straight to drive mode；Conventional turntable sealing device uses labyrinth or outside framework oil seal substantially, and skeleton oil seal is by axis outer round surface
Roughness and axis are influenced with pedestal concentricity, if machining accuracy and assembly precision deficiency can cause it is close between axis and outside framework oil seal
Seal bad, frictional resistance becomes larger, indirect waste motor performance.
Invention content
The utility model provides a kind of friction resistance reducing turntable movable sealing structure to overcome the shortcomings of the above technology
The turntable transmission shaft movable sealing structure of power.
Technical solution is used by the utility model overcomes its technical problem：
A kind of turntable transmission shaft movable sealing structure, including rotary table base and by bearing rotational installation in rotary table base
Transmission shaft, rotary packing ring, the outboard end setting of the rotary table base are coaxially installed with by fixing device on the transmission shaft
Fluted, stationary seal ring is plugged in across transmission shaft in groove, and stationary seal ring is located at the outside of rotary packing ring, rotary packing ring outside
It is provided with O-ring II between end and the inner end of stationary seal ring, O-ring III is provided between stationary seal ring and groove, it is described quiet
Along the circumferential direction uniform intervals are provided with several through-holes to sealing ring, and several screw holes, screw are correspondingly arranged in the rotary table base
Be combined on after through-hole in corresponding screw hole, be set with several disc springs on the screw, each disc spring one end of stacking with it is quiet
Sealing ring is in contact, and the other end is in contact with rotary table base.
Above-mentioned fixing device include be coaxially disposed on transmission shaft the shaft shoulder and the external screw thread that is set on transmission shaft, institute
Rotary packing ring is stated by threaded engagement on the external screw thread of transmission shaft, is provided between the inner end and the shaft shoulder of the rotary packing ring
O-ring I.
The utility model has the beneficial effects that：When the rotation of the transmission shaft of turntable, rotary packing ring follows transmission shaft to rotate, by
Be provided with disc spring between stationary seal ring and turntable matrix, therefore disc spring Flexible change therewith, rotary packing ring and stationary seal ring it
Between pressure to increase or reduce, the compression surplus of the O-ring II between rotary packing ring and stationary seal ring changes therewith, realize
Rotary packing ring changes with the compression surplus of O-ring II with stationary seal ring relative rotation resistance and is changed, to realize frictional resistance
It is adjustable, it is not influenced with rotary table base concentricity by transmission shaft outer round surface roughness and transmission shaft, substantially increases motor
It can be with the economy of product.
Description of the drawings
Fig. 1 is the main view cross-sectional view of the utility model；
In figure, 1. rotary table base, 2. transmission shaft, 3. bearing, 4. shaft shoulder, 5. external screw thread, 6. rotary packing ring 7.O types circle I
11. through-hole of 8.O types circle II 9. groove, 10. stationary seal ring, 12. III 14. screw of threaded hole 13.O types circle, 15. disc spring.
Specific implementation mode
1 pair of the utility model is described further below in conjunction with the accompanying drawings.
A kind of turntable transmission shaft movable sealing structure, including rotary table base 1 and by bearing 3 be rotatablely installed in rotary table base
Transmission shaft 2 in 1 is coaxially installed with rotary packing ring 6 on transmission shaft 2 by fixing device, and the outboard end of rotary table base 1 is provided with
Groove 9, stationary seal ring 10 are plugged in across transmission shaft 2 in groove 9, and stationary seal ring 10 is located at the outside of rotary packing ring 6, dynamic sealing
It is provided with O-ring II 8 between 6 outboard end of ring and the inner end of stationary seal ring 10, O is provided between stationary seal ring 10 and groove 9
Type circle III 13, along the circumferential direction uniform intervals are provided with several through-holes 11 to stationary seal ring 10, are correspondingly arranged in rotary table base 1
Several screw holes 12, screw 14 are combined on after passing through through-hole 11 in corresponding screw hole 12, and several disc springs 15, heap are set on screw 14
Folded 15 one end of each disc spring is in contact with stationary seal ring 10, and the other end is in contact with rotary table base 1.When the transmission shaft of turntable
When 2 rotation, rotary packing ring 6 follows transmission shaft 2 to rotate, due to being provided with disc spring 15 between stationary seal ring 10 and turntable matrix 1, because
This disc spring 15 Flexible change therewith, the pressure between rotary packing ring 6 and stationary seal ring 10 is to increase or reduce, rotary packing ring 6
The compression surplus of O-ring II 8 between stationary seal ring 10 changes therewith, realizes that rotary packing ring 6 is opposite with stationary seal ring 10 and revolves
Turn resistance to change with the compression surplus of O-ring II 8 and change, to realize that frictional resistance is adjustable, not by 2 outer circle table of transmission shaft
The influence of surface roughness and transmission shaft 2 and 1 concentricity of rotary table base, substantially increases the economy of motor performance and product.
Fixing device can be following structure comprising be coaxially disposed on transmission shaft 2 the shaft shoulder 4 and be set to transmission
External screw thread 5 on axis 2, rotary packing ring 6 by threaded engagement on the external screw thread 5 of transmission shaft 2, the inner end of rotary packing ring 6 with
O-ring I 7 is provided between the shaft shoulder 4.Rotary packing ring 6 leads to screw thread and is connect with transmission shaft 2, and inner end passes through O-ring I 7 and axis
Shoulder 4 seals, not only fixation, reduces the machining accuracy of transmission shaft 2, improves economy, while further improving leakproofness.
Claims (2)
1. a kind of turntable transmission shaft movable sealing structure, including rotary table base（1）And pass through bearing（3）It is rotatablely installed in turntable base
Seat（1）In transmission shaft（2）, it is characterised in that：The transmission shaft（2）It is upper that rotary packing ring is coaxially installed with by fixing device
（6）, the rotary table base（1）Outboard end setting it is fluted（9）, stationary seal ring（10）Across transmission shaft（2）It is plugged in groove
（9）It is interior, stationary seal ring（10）Positioned at rotary packing ring（6）Outside, rotary packing ring（6）Outboard end and stationary seal ring（10）Inside
O-ring II is provided between end（8）, stationary seal ring（10）With groove（9）Between be provided with O-ring III（13）, the static seal
Ring（10）Along the circumferential direction uniform intervals are provided with several through-holes（11）, the rotary table base（1）On be correspondingly arranged on several spiral shells
Hole（12）, screw（14）Across through-hole（11）After be combined on corresponding screw hole（12）In, the screw（14）On be set with it is several
Disc spring（15）, each disc spring of stacking（15）One end and stationary seal ring（10）It is in contact, the other end and rotary table base（1）Connect
It touches.
2. turntable transmission shaft movable sealing structure according to claim 1, it is characterised in that：The fixing device includes coaxial
It is set to transmission shaft（2）On the shaft shoulder（4）And it is set to transmission shaft（2）On external screw thread（5）, the rotary packing ring（6）It is logical
Threaded engagement is crossed in transmission shaft（2）External screw thread（5）On, the rotary packing ring（6）Inner end and the shaft shoulder（4）Between be provided with
O-ring I（7）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820352521.7U CN207989735U (en) | 2018-03-15 | 2018-03-15 | A kind of turntable transmission shaft movable sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820352521.7U CN207989735U (en) | 2018-03-15 | 2018-03-15 | A kind of turntable transmission shaft movable sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207989735U true CN207989735U (en) | 2018-10-19 |
Family
ID=63827965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820352521.7U Expired - Fee Related CN207989735U (en) | 2018-03-15 | 2018-03-15 | A kind of turntable transmission shaft movable sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207989735U (en) |
-
2018
- 2018-03-15 CN CN201820352521.7U patent/CN207989735U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 250101 Innovation workshop D, 2016 Leap Road, hi-tech East District, Ji'nan, Shandong. Patentee after: Shandong Flying Electronic Technology Co., Ltd. Address before: 250101 Ji'nan four, A402 room, 4 building, Qilu Software Park, 1 Shun Hua Road, hi tech Zone, Ji'nan, Shandong. Patentee before: JINAN FEIYUE ELECTROMECHANICAL TECHNOLOGY CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181019 Termination date: 20210315 |