CN220956031U - Electric Roots pump structure - Google Patents
Electric Roots pump structure Download PDFInfo
- Publication number
- CN220956031U CN220956031U CN202322581927.6U CN202322581927U CN220956031U CN 220956031 U CN220956031 U CN 220956031U CN 202322581927 U CN202322581927 U CN 202322581927U CN 220956031 U CN220956031 U CN 220956031U
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- Prior art keywords
- driving shaft
- gear
- chamber
- driven shaft
- magnetic gear
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- 239000012535 impurity Substances 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model relates to an electric Roots pump structure, which comprises a shell, a driving shaft, a driven shaft, a rotor and a stator, wherein the driving shaft, the driven shaft and the stator are arranged in the shell in parallel; a gear chamber and a compressed air chamber are arranged in the shell, a first magnetic gear is arranged at one end of the driving shaft, which is positioned in the gear chamber, and a second magnetic gear which can be matched with the first magnetic gear is arranged on the driven shaft; one end of the driving shaft, which is positioned in the air compressing chamber, is provided with a first air compressing rotating wheel, and the driven shaft is provided with a second air compressing rotating wheel which can be matched with the first air compressing rotating wheel.
Description
Technical Field
The utility model belongs to the technical field of Roots pumps, and relates to an electric Roots pump structure.
Background
The conventional electric Roots pump generally has a driving shaft and a driven shaft which are arranged in parallel, and realizes the running fit between two compressed air rotating wheels by utilizing gear transmission, and when the driving shaft rotates, the driven shaft is in reverse rotation relative to the driving shaft by the fit of a driving gear and a driven gear which are meshed with each other. The driving rotating wheel and the driven rotating wheel which are meshed with each other rotate in different directions, so that the electric Roots pump sucks and discharges fluid;
However, the mechanical meshing gear set needs to be lubricated by oil, which means that a gear cavity is additionally added to the assembly and is filled with the lubricating oil and the corresponding oil seal, so that the volume and the complexity of the assembly are increased, and the reliability of the product is reduced; and when the meshing gears run, larger vibration and noise can be generated, the comfort is affected, and meanwhile, the regular maintenance is required, so that the use cost of the product is increased.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, solve the problems of vibration, noise and inconvenient later maintenance caused by the adoption of a mechanical meshing gear of a Roots pump, and provide an electric Roots pump structure.
In order to achieve the above purpose, the following technical scheme is adopted:
The electric Roots pump structure comprises a shell, a driving shaft, a driven shaft, a rotor and a stator, wherein the driving shaft and the driven shaft are arranged in the shell in parallel, the stator is arranged on the shell outside the driving shaft, and the rotor matched with the stator is arranged on the driving shaft; a gear chamber and a compressed air chamber are arranged in the shell, a first magnetic gear is arranged at one end of the driving shaft, which is positioned in the gear chamber, and a second magnetic gear which can be matched with the first magnetic gear is arranged on the driven shaft; one end of the driving shaft, which is positioned in the air compressing chamber, is provided with a first air compressing rotating wheel, and the driven shaft is provided with a second air compressing rotating wheel which can be matched with the first air compressing rotating wheel.
Preferably, the positive pole magnetic teeth and the negative pole magnetic teeth of the first magnetic gear are distributed in a tooth-spacing manner.
Preferably, the driving shaft and the driven shaft are respectively arranged in the casing by bearings.
Preferably, the air pressing chamber is a closed cavity.
Compared with the prior art, the utility model has the following advantages:
according to the utility model, the magnetic gear set is adopted to replace the traditional mechanical meshing gear set, and torque is transmitted between the two gears through the magnetic field, so that the friction of the traditional mechanical meshing gear set can be avoided by adopting the magnetic gear set, the defects of lubrication, noise and later maintenance are avoided, the cost is saved, the vibration and noise of a product are reduced, meanwhile, the risk of gear locking can be effectively avoided due to no physical contact between the master gear and the slave gear of the magnetic gear set, and the fault tolerance of the product is improved.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
FIG. 2 is a schematic diagram of the magnetic gear structure of the present utility model.
In the figure: 1. a housing; 2. a driving shaft; 3. a driven shaft; 4. a rotor; 5. a stator; 6. a gear chamber, 7, a pressure chamber; 8. a first magnetic gear; 9. a second magnetic gear; 10. a first compressor wheel; 11. a second compressor wheel; 12. and (3) a bearing.
Detailed Description
In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
1-2, An electric Roots pump structure comprises a casing 1, a driving shaft 2, a driven shaft 3, a rotor 4 and a stator 5, wherein the driving shaft 2, the driven shaft 3 and the stator 5 are arranged in the casing 1 in parallel, the driving shaft 2 is positioned in the stator 5, and the casing 1 provides mounting support for the driving shaft 2 and the driven shaft 3;
A rotor 4 matched with the stator 5 is arranged on the driving shaft 2, the stator 5 is electrified, the stator 5 generates a rotating magnetic field and acts on the rotor 4, and the rotor 4 drives the driving shaft 2 to rotate;
The gear chamber 6 and the air pressing chamber 7 are arranged in the casing 1, the first magnetic gear 8 is arranged at one end of the driving shaft 2, which is positioned in the gear chamber 6, the second magnetic gear 9 which can be matched with the first magnetic gear 8 is arranged on the driven shaft 3, when the driving shaft 2 rotates, the driven shaft 3 can be driven to rotate by utilizing the cooperation of the first magnetic gear 8 and the second magnetic gear 9, the cooperation between the first magnetic gear 8 and the second magnetic gear 9 only depends on magnetic field transmission torque, and the first magnetic gear 8 and the second magnetic gear 9 are in mechanical contact with each other, so that lubricating oil is not needed, impurities generated by mechanical friction are not generated in the operation process, and therefore, permanent magnets used for adsorbing the impurities are not needed to be installed in the gear cavity in the structure.
The driving shaft 2 is provided with a first air compressing rotary wheel 10 at one end of the air compressing chamber 7, and the driven shaft 3 is provided with a second air compressing rotary wheel 11 which can be matched with the first air compressing rotary wheel 10.
Further, positive magnetic teeth and negative magnetic teeth of the first magnetic gear 8 are distributed in a spaced mode, the second magnetic gear 9 and the first magnetic gear 8 are identical in structure, and the positive magnetic teeth and the negative magnetic teeth which are distributed at intervals are meshed in a matched mode, so that the second magnetic gear 9 is driven to rotate when the first magnetic gear 8 rotates.
Further, the driving shaft 2 and the driven shaft 3 are respectively mounted inside the casing 1 by bearings 12.
Further, the air pressing chamber 7 is a closed cavity.
Working principle: compared with the traditional electric Roots pump structure, the utility model adopts the magnetic gear set to replace the mechanical meshing gear set in the original structure, the first magnetic gear 8 and the second magnetic gear 9 are matched to transmit torque only by a magnetic field, and the first magnetic gear 8 and the second magnetic gear 9 are in mechanical contact, so that lubricating oil is not needed, and meanwhile, because of the characteristic of no contact between the first magnetic gear 8 and the second magnetic gear 9, impurities generated by mechanical friction are not generated in the operation process, and therefore, the structure does not need a permanent magnet for adsorbing the impurities, thereby achieving the purposes of noise reduction, vibration and the like.
It is to be understood that the above embodiments are merely illustrative of the application of the principles of the present utility model, but not in limitation thereof. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the utility model, and are also considered to be within the scope of the utility model.
Claims (4)
1. The utility model provides an electronic roots pump structure, includes casing (1), driving shaft (2), driven shaft (3), rotor (4) and stator (5), characterized by: a driving shaft (2), a driven shaft (3) and a stator (5) are arranged in the shell (1) in parallel, the driving shaft (2) is positioned in the stator (5), and a rotor (4) matched with the stator (5) is arranged on the driving shaft (2); a gear chamber (6) and a compressed air chamber (7) are arranged in the shell (1), a first magnetic gear (8) is arranged at one end of the driving shaft (2) positioned in the gear chamber (6), and a second magnetic gear (9) which can be matched with the first magnetic gear (8) is arranged on the driven shaft (3); one end of the driving shaft (2) positioned in the air pressing chamber (7) is provided with a first air pressing rotating wheel (10), and the driven shaft (3) is provided with a second air pressing rotating wheel (11) which can be matched with the first air pressing rotating wheel (10).
2. An electric roots pump structure according to claim 1, wherein: the positive pole magnetic teeth and the negative pole magnetic teeth of the first magnetic gear (8) are distributed in a tooth-space mode.
3. An electric roots pump structure according to claim 1, wherein: the driving shaft (2) and the driven shaft (3) are respectively arranged in the shell (1) by utilizing bearings (12).
4. An electric roots pump structure according to claim 1, wherein: the air pressing chamber (7) is a closed cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322581927.6U CN220956031U (en) | 2023-09-21 | 2023-09-21 | Electric Roots pump structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322581927.6U CN220956031U (en) | 2023-09-21 | 2023-09-21 | Electric Roots pump structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220956031U true CN220956031U (en) | 2024-05-14 |
Family
ID=90976723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322581927.6U Active CN220956031U (en) | 2023-09-21 | 2023-09-21 | Electric Roots pump structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220956031U (en) |
-
2023
- 2023-09-21 CN CN202322581927.6U patent/CN220956031U/en active Active
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Legal Events
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|---|---|---|---|
| GR01 | Patent grant | ||
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