CN221462927U - Vacuum dynamic seal structure - Google Patents
Vacuum dynamic seal structure Download PDFInfo
- Publication number
- CN221462927U CN221462927U CN202323347749.7U CN202323347749U CN221462927U CN 221462927 U CN221462927 U CN 221462927U CN 202323347749 U CN202323347749 U CN 202323347749U CN 221462927 U CN221462927 U CN 221462927U
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- sealing
- vacuum
- seat
- motor
- motor fixing
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- 238000007789 sealing Methods 0.000 claims abstract description 98
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 230000003068 static effect Effects 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model provides a vacuum dynamic seal structure, belong to the vacuum field, including driving motor, the closing plate seat, closing plate and vacuum storehouse, closing plate and the sealed vacuum storehouse of sealing seat form the vacuum chamber, still include drive mechanism, motor fixing base and output shaft, driving motor is fixed in the motor fixing base and is located the vacuum chamber outside, driving motor is connected with the drive mechanism transmission, the output shaft is connected with the drive mechanism transmission and the output shaft is located the vacuum chamber, the closing plate is equipped with keeps away the position groove, the drive mechanism part is located keeps away the position groove and stretches into the vacuum chamber inside, the sealing seat is located the atmosphere side and respectively with motor fixing base and closing plate fixed connection, the space between sealing plate and the motor fixing base is sealed to the sealing seat. The utility model has the advantages that the motor is arranged outside the vacuum cavity, the transmission mechanism and the working part are arranged inside the vacuum cavity, so that the motor can radiate heat conveniently, the abrasion of the dynamic sealing structure and the loss of transmission torque are reduced, and the product cost is effectively reduced.
Description
Technical Field
The utility model relates to the technical field of vacuum, in particular to a vacuum dynamic sealing structure.
Background
Vacuum dynamic sealing is a technique for achieving object sealing under high vacuum conditions. The sealing component is placed in a vacuum environment, and the sealing component can effectively bear the action of external pressure by utilizing the action of vacuum and a power device, so that the sealing effect is realized.
The power device is a key part of vacuum dynamic sealing, and generates a negative pressure difference by generating specific power to enable a sealed object to keep a certain relative motion with a sealing part. Common power devices include rotary shaft seals, piston seals, etc., which can effectively reduce wear of the seal components and heat generation to improve reliability and stability of the sealing effect.
The vacuum internal motion mechanism is mainly divided into two motion mechanisms.
The first type of motion mechanism is driven in vacuum by a vacuum motor. However, the vacuum motor is expensive and difficult to dissipate heat, and long-time work is not recommended;
The second transmission mechanism is outside vacuum, and the driving force is input into the vacuum system through the dynamic sealing structure. However, the dynamic seal structure is easy to wear and the transmission moment is lost.
Disclosure of utility model
In order to overcome the defects in the prior art, the utility model provides a vacuum dynamic sealing structure, which has the following technical scheme:
The utility model provides a vacuum dynamic seal structure, includes driving motor, closing plate seat, closing plate and vacuum storehouse, drive mechanism, motor fixing base and output shaft, closing plate and the sealed vacuum storehouse of sealing seat form the vacuum chamber, driving motor is fixed in the motor fixing base and be located the vacuum chamber outside, driving motor with the drive mechanism transmission is connected, the output shaft with the drive mechanism transmission is connected and the output shaft is located the vacuum intracavity, the closing plate is equipped with keeps away the position groove, the drive mechanism part is located keep away the position groove and stretch into the vacuum intracavity portion, the sealing seat be located the atmosphere side and respectively with motor fixing base and closing plate fixed connection, the sealing seat is sealed the closing plate with the space between the motor fixing base.
Further, a first sealing ring is arranged at the joint of the sealing seat and the sealing plate, a second sealing ring is arranged at the joint of the sealing seat and the motor fixing seat, and a second sealing ring is arranged at the joint of the motor fixing seat and a motor shaft of the driving motor.
Further, the first sealing ring and the second sealing ring are static sealing O-shaped rings, and the third sealing ring is a dynamic sealing O-shaped ring.
Further, the vacuum dynamic sealing structure is provided with a first fastening screw, a second fastening screw and a third fastening screw, and the first fastening screw is connected with the sealing seat and the sealing plate, so that the first sealing ring deforms and abuts against the sealing seat and the sealing plate; the second fastening screw is connected with the sealing seat and the motor fixing seat, so that the second sealing ring deforms and abuts against the sealing seat and the motor fixing seat; the third fastening screw is connected with the motor fixing seat and the driving motor, so that the third sealing ring deforms and abuts against the motor fixing seat and the driving motor.
Further, the transmission mechanism comprises a driving belt wheel, a driven belt wheel and a transmission belt, wherein the driving belt wheel is fixedly connected with a motor shaft of the driving motor, the driving belt wheel is in transmission connection with the driven belt wheel through the transmission belt, and the output shaft is fixedly connected with the driven belt wheel.
Further, the driving belt is a synchronous belt, and the driving belt pulley and the driven belt pulley are synchronous belt pulleys.
Further, the diameter of the driving pulley is smaller than that of the driven pulley.
Further, the vacuum dynamic seal structure further comprises a support bracket extending from the sealing plate, and the driven belt wheel and the output shaft are rotatably mounted on the support bracket.
Further, the support bracket comprises a support cover, a support tray, a bearing groove and a connecting piece, wherein the connecting piece is fixed on the sealing plate, the support tray is fixed on the connecting piece, the driven belt wheel is arranged on the support tray, and the support cover is arranged on the support tray and is positioned above the driven belt wheel.
Further, the support bracket is provided with a bearing groove for mounting a bearing.
The utility model has the advantages that the motor is arranged outside the vacuum cavity, the transmission mechanism and the working part are arranged inside the vacuum cavity, so that the motor can radiate heat conveniently, the abrasion of the dynamic sealing structure and the loss of transmission torque are reduced, and the product cost is effectively reduced.
Drawings
FIG. 1 is a perspective view of a vacuum seal of the present utility model;
FIG. 2 is a partial exploded view of the vacuum dynamic seal structure of FIG. 1;
FIG. 3 is a cross-sectional view of the vacuum dynamic seal structure of FIG. 1;
Fig. 4 is a structural diagram of a transmission mechanism of the vacuum dynamic seal structure of fig. 1:
fig. 5 is an exploded view of a portion of the transmission mechanism of the vacuum dynamic seal structure of fig. 1.
In the figure:
1. A driving motor; 2. a sealing seat; 3. a sealing plate; 31. a clearance groove; 32. a support bracket; 321. a support cover; 322. a tray; 323. a bearing groove; 324. a connecting piece; 4. a transmission mechanism; 41. a driving pulley; 42. a transmission belt; 43. a driven pulley; 5. a motor fixing seat; 6. an output shaft; 7. a first seal ring; 71. a first fastening screw; 8. a second seal ring; 81. a second fastening screw; 9. a third seal ring; 91. and a third fastening screw.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model as the term "and/or" and "as used herein includes any and all combinations of one or more of the associated listed items.
The utility model is described in further detail below with reference to the examples and with reference to fig. 1-5.
A vacuum dynamic seal mechanism comprises a driving motor 1, a seal seat 2, a seal plate 3, a transmission mechanism 4, a motor fixing seat 5, an output shaft 6 and a vacuum bin.
The transmission mechanism 4 includes a driving pulley 41, a driven pulley 43 and a driving belt 42, wherein the driving pulley 41 and the driven pulley 43 are in transmission connection through the driving belt 42, and in this embodiment, the driving pulley 41 and the driven pulley 43 are synchronous pulleys, the driving belt 42 is a synchronous belt, and the diameter of the driving pulley 41 is smaller than that of the driven pulley 43, so that a larger torque can be conveniently output.
The sealing plate 3 is provided with a clearance groove 31, the sealing plate 3 is also provided with a support bracket 32, the support bracket 32 is used for installing the transmission mechanism 4, and the support bracket 32 is provided with a bearing for protecting the output shaft 6.
The support bracket 32 comprises a support cover 321, a support plate 322, a bearing groove 323 and a connecting piece 324, wherein the connecting piece 324 is fixed on the sealing plate 3, the support plate 322 is fixed on the connecting piece 324, the support plate 322 is provided with the bearing groove 323 for mounting a bearing, the driven pulley 43 is rotatably mounted on the support plate 322, and the support cover 321 is mounted on the support plate 322 and is positioned above the driven pulley 43.
The installation process of the vacuum dynamic sealing structure comprises the following steps:
The sealed vacuum chamber of sealing seat 2 and closing plate 3 forms the vacuum chamber, and sealing seat 2 is fixed with motor fixing base 5 and closing plate 3 respectively, and sealing seat 2 seals the space between motor fixing base 5 and the closing plate 3, and drive mechanism 4 part is located keeps away the position groove 31 and stretches into vacuum chamber inside, and driving motor 1 installs in motor fixing base 5 and is located the vacuum chamber outside, driving pulley 41 and driving motor 1's motor shaft fixed connection, and driven pulley 43 rotates and installs in support bracket 32, output shaft 6 and driven pulley 43 fixed connection and output shaft 6 are located the vacuum intracavity portion.
In order to ensure the sealing effect, the vacuum sealing structure is also provided with a sealing ring, and the installation positions of the sealing ring are as follows:
The junction of sealing seat 2 and closing plate 3 is equipped with first sealing washer 7, and the junction of sealing seat 2 and motor fixing base 5 is equipped with second sealing washer 8, motor fixing base 5 with the junction of driving motor 1's motor shaft is equipped with third sealing washer 9. Specifically, in this embodiment, the first seal ring 7 and the second seal ring 8 are static seal O-rings, and the third seal ring 9 is a dynamic seal O-ring.
The vacuum dynamic sealing structure is provided with a first fastening screw 71, a second fastening screw 81 and a third fastening screw 91, wherein the first fastening screw 71 is connected with the sealing seat 2 and the sealing plate 3, so that the first sealing ring 7 deforms and abuts against the sealing seat 2 and the sealing plate 3; the second fastening screw 81 connects the sealing seat 2 and the motor fixing seat 5, so that the second sealing ring 8 deforms and abuts against the sealing seat 2 and the motor fixing seat 5; the third fastening screw 91 connects the motor fixing seat 5 and the driving motor 1, so that the third sealing ring 9 deforms and abuts against the motor fixing seat 5 and the driving motor 1.
The utility model has the advantages that the driving motor 1 is arranged outside the vacuum cavity, the transmission mechanism 4 is arranged inside the vacuum cavity, the heat dissipation of the motor is facilitated, the abrasion of the dynamic sealing structure and the loss of transmission torque are reduced, and the product cost is effectively reduced.
The above examples illustrate only one embodiment of the utility model and are not to be construed as limiting the scope of the utility model. It should be noted that, for those skilled in the art, it is possible to make several modifications and improvements without departing from the concept of the present utility model, which are equivalent to the above embodiments according to the essential technology of the present utility model, and these are all included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a vacuum dynamic seal structure, includes driving motor, closing plate seat, closing plate and vacuum storehouse, and closing plate and the sealed vacuum storehouse of sealing plate seat form vacuum chamber, its characterized in that: still include drive mechanism, motor fixing base and output shaft, driving motor is fixed in the motor fixing base is located vacuum chamber outside, driving motor with the drive mechanism transmission is connected, the output shaft with the drive mechanism transmission is connected and the output shaft is located vacuum intracavity, the closing plate is equipped with keeps away the position groove, the drive mechanism part is located keep away the position groove and stretch into vacuum intracavity portion, the sealing seat be located the atmosphere side and respectively with motor fixing base and closing plate fixed connection, the sealing seat is sealed the closing plate with the space between the motor fixing base.
2. The vacuum dynamic seal structure according to claim 1, wherein: the sealing seat is provided with a first sealing ring at the joint of the sealing seat and the sealing plate, a second sealing ring at the joint of the sealing seat and the motor fixing seat, and a third sealing ring at the joint of the motor fixing seat and the motor shaft of the driving motor.
3. The vacuum dynamic seal structure according to claim 2, wherein: the first sealing ring and the second sealing ring are static sealing O-shaped rings, and the third sealing ring is a dynamic sealing O-shaped ring.
4. The vacuum dynamic seal structure according to claim 2, wherein: the vacuum dynamic sealing structure is provided with a first fastening screw, a second fastening screw and a third fastening screw, and the first fastening screw is connected with the sealing seat and the sealing plate, so that the first sealing ring deforms and abuts against the sealing seat and the sealing plate; the second fastening screw is connected with the sealing seat and the motor fixing seat, so that the second sealing ring deforms and abuts against the sealing seat and the motor fixing seat; the third fastening screw is connected with the motor fixing seat and the driving motor, so that the third sealing ring deforms and abuts against the motor fixing seat and the driving motor.
5. The vacuum dynamic seal structure according to claim 1, wherein: the driving mechanism comprises a driving belt wheel, a driven belt wheel and a driving belt, wherein the driving belt wheel is fixedly connected with a motor shaft of the driving motor, the driving belt wheel is in transmission connection with the driven belt wheel through the driving belt, and the output shaft is fixedly connected with the driven belt wheel.
6. The vacuum dynamic seal structure according to claim 5, wherein: the driving belt is a synchronous belt, and the driving belt pulley and the driven belt pulley are synchronous belt pulleys.
7. The vacuum dynamic seal structure according to claim 5, wherein: the diameter of the driving belt pulley is smaller than that of the driven belt pulley.
8. The vacuum dynamic seal structure of claim 5, further comprising a support bracket extending from said seal plate, said driven pulley and said output shaft rotatably mounted to said support bracket.
9. The vacuum dynamic seal structure according to claim 8, wherein: the bearing bracket comprises a bearing cover, a bearing plate, a bearing groove and a connecting piece, wherein the connecting piece is fixed on the sealing plate, the bearing plate is fixed on the connecting piece, the driven belt wheel is rotatably arranged on the bearing plate, and the bearing cover is arranged on the bearing plate and is positioned above the driven belt wheel.
10. The vacuum dynamic seal structure according to claim 8, wherein: the bearing bracket is provided with a bearing groove, and the bearing groove is used for installing a bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323347749.7U CN221462927U (en) | 2023-12-08 | 2023-12-08 | Vacuum dynamic seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323347749.7U CN221462927U (en) | 2023-12-08 | 2023-12-08 | Vacuum dynamic seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221462927U true CN221462927U (en) | 2024-08-02 |
Family
ID=92343079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323347749.7U Active CN221462927U (en) | 2023-12-08 | 2023-12-08 | Vacuum dynamic seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221462927U (en) |
-
2023
- 2023-12-08 CN CN202323347749.7U patent/CN221462927U/en active Active
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