CN215292893U - Driving claw of electronic vacuum pump - Google Patents
Driving claw of electronic vacuum pump Download PDFInfo
- Publication number
- CN215292893U CN215292893U CN202121415447.7U CN202121415447U CN215292893U CN 215292893 U CN215292893 U CN 215292893U CN 202121415447 U CN202121415447 U CN 202121415447U CN 215292893 U CN215292893 U CN 215292893U
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- driving
- vacuum pump
- pillar
- pawl
- driving claw
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Abstract
The utility model discloses an electronic vacuum pump drive pawl, including the drive pawl body, be equipped with four pillars around the drive pawl body, four pillars are two liang set up around the drive pawl body for a set of symmetry, link to each other through connecting portion between every pillar and the drive pawl body, and the lateral part of every pillar all is equipped with the strengthening rib, and the drive pawl body is hollow cylinder. During the use, in the blade rotor of driving pawl embedding electronic vacuum pump, firmly grasp the blade rotor, owing to be equipped with four pillars for the degree of cohesion of driving pawl and blade rotor is higher, and the motor drives the blade rotor through the driving pawl and rotates, the utility model discloses a motor moment of torsion can effectively be shared to the driving pawl, thereby improves the reliability of driving pawl for the driving pawl can bear higher motor moment of torsion, supports for powerful electronic vacuum pump provides reliable drive, satisfies the brake auxiliary requirement of large displacement car.
Description
Technical Field
The utility model mainly relates to the technical field of electronic vacuum pumps, in particular to electronic vacuum pump driving claw especially relates to a driving claw for 4 pillars of electronic vacuum pump.
Background
The electronic vacuum pump for the automobile brake system generally adopts graphite as a rotor and blades, the rotor is driven to rotate through a motor, the blades are attached to the rotor, and along with the rotation of the rotor, the blades periodically extend out and retract, so that the periodic increase and reduction of cavities between the blades and between the rotor and the stator are realized, and the purpose of vacuumizing is realized. The motor drives the rotor to rotate through the driving claw, and the driving claw is in interference fit with a main shaft of the motor.
Along with the required air exhaust performance of the vacuum pump is continuously improved, the power of the motor is continuously improved, and the corresponding torque is also continuously improved, so that the driving claw can bear larger torque, and the phenomenon of breaking and failure of the driving claw can possibly occur. However, the driving pawl in the prior art cannot bear such a large torque, so that a novel driving pawl is urgently needed to be developed, and therefore, the reliability and the use safety of the driving pawl are improved.
Disclosure of Invention
To the above problem, the utility model provides an electronic vacuum pump drive claw, through setting up four pillars, every pillar passes through connecting portion and links to each other with the drive claw body, changes the local structure of pillar simultaneously, promotes the effective power of grabbing of drive claw, shares great motor torque value, provides reliable drive support for powerful electronic vacuum pump.
The purpose of the utility model can be realized by the following technical scheme: the utility model provides an electronic vacuum pump drive pawl, its characterized in that, includes the drive pawl body, is equipped with four pillars around the drive pawl body, and four pillars are two liang and set up around the drive pawl body for a set of symmetry, link to each other through connecting portion between every pillar and the drive pawl body, and the lateral part of every pillar all is equipped with the strengthening rib, and the drive pawl body is hollow cylinder.
Preferably, the inner side surface of the strut is a working surface, the lower half part of the working surface is connected with the driving claw body through a connecting part, the connecting part is wedge-shaped, and a circular arc-shaped groove is formed in the connecting part and the driving claw body.
Furthermore, the top surface of the pillar is an inclined plane, the included angle between the inclined plane and the horizontal plane is 3-5 degrees, and a chamfer is arranged between the inclined plane and the pillar.
Compared with the prior art, the technical scheme of the utility model except whole technical scheme's improvement, still include the improvement in the aspect of many details, particularly, have following beneficial effect:
1. according to the improved scheme of the utility model, four pillars are arranged around the driving claw body, each pillar is connected with the driving claw body through a connecting part, the side part of each pillar is provided with a reinforcing rib, the connection between each pillar and the driving claw body is firmer and integrated, the overall performance is enhanced, and a larger motor torque value can be distributed in the work;
2. in the technical scheme of the utility model, the medial surface of pillar is the working face, the lower half of working face links to each other with the driving pawl body through connecting portion, connecting portion are the wedge, connecting portion and driving pawl body junction are equipped with convex recess, here the structure of connecting portion makes pillar and driving pawl body effectively combine, convex recess makes driving pawl and impeller effectively cooperate simultaneously, promotes the effective grabhook of driving pawl, provides reliable drive support for powerful electronic vacuum pump;
3. the utility model has the advantages of simple structure, rationally distributed, low in manufacturing cost, excellent in use effect, facilitate promotion and utilization.
Drawings
Fig. 1 is an explosion structure diagram of the electronic vacuum pump in use state of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a cross-sectional view of fig. 2.
The labels in the figure are as follows:
the driving claw comprises a driving claw body 1, a support column 2, a connecting part 3, a reinforcing rib 4, a working surface 5, an inclined plane 6, a vane rotor 7 and a driving claw 8.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings to make it clear to those skilled in the art how to practice the invention. While the invention has been described in connection with its preferred embodiments, these embodiments are intended to be illustrative, and not to limit the scope of the invention.
As shown in figure 1, the driving claw of the electronic vacuum pump is different from the prior art in that the driving claw comprises a driving claw body 1, four supporting columns 2 are arranged on the periphery of the driving claw body, every two of the four supporting columns are symmetrically arranged on the periphery of the driving claw body in a group, the four supporting columns can be uniformly distributed on the periphery of a cylindrical driving claw body, also can be in a group, a specific angle is arranged between the two groups, and the angle range is 90-120 degrees. Furthermore, each support column is connected with the driving claw body through a connecting part 3, the connecting part increases the contact area between the support column and the driving claw body, meanwhile, a reinforcing rib 4 is arranged on the side part of each support column, and the driving claw body is a hollow cylinder.
During the use, in the blade rotor 7 of driving pawl embedding electronic vacuum pump, firmly grasp blade rotor, owing to be equipped with four pillars for driving pawl is higher with blade rotor's cohesion degree, and the motor drives blade rotor through driving pawl and rotates, the utility model discloses a motor moment of torsion can effectively be shared to the driving pawl, thereby improves driving pawl's reliability, makes driving pawl can bear higher motor moment of torsion, supports for powerful electronic vacuum pump provides reliable drive, satisfies the brake auxiliary requirement of big discharge automobile.
Examples
Four pillars are arranged around the driving claw body, two pairs of four pillars are symmetrically arranged around the driving claw body, the included angle between two groups of driving claws is 100 degrees, the included angle between two driving claws in each group is 80 degrees, each pillar is connected with the driving claw body through a connecting part, the lateral part of each pillar is provided with a reinforcing rib 4, the surface of the reinforcing rib can be provided with longitudinal lines, the friction force of the driving claw is increased when the driving claw body rotates, and the driving claw body is a hollow cylinder.
Particularly, the medial surface of pillar is working face 5, and the working face is arc surface or combined surface, and the combined surface here means that the middle part of working face is vertical to be equipped with a square binding face, and the both sides of square binding face are equipped with the arc surface, and this kind of combined surface can make and produce better laminating degree between pillar and the blade rotor in the use. The lower half part of the working face is connected with the driving claw body through the connecting part, the connecting part is wedge-shaped, the two ends of the wedge are respectively a thin part and a thick part, the thin part is connected with the strut, the width of the thin part is the same as the diameter of the strut, the thick part is connected with the driving group body, the connecting face between the strut and the driving claw body is effectively enlarged, the connecting reliability is guaranteed, and the top of the connecting part and the driving claw body is provided with a circular arc-shaped groove.
Furthermore, the top surface of the pillar is an inclined plane 6, the included angle between the inclined plane and the horizontal plane is 3-5 degrees, a chamfer is arranged between the inclined plane and the pillar, the inclined plane is arranged to help the degree of wedging and integration between the pillar and the impeller rotor during rotation, and meanwhile, a reinforcing rib is arranged at the joint of the connecting part and the driving claw body, so that the connecting effectiveness is guaranteed, and the firmness is enhanced.
It should be noted that many variations and modifications of the embodiments of the present invention are possible, which are fully described, and are not limited to the specific examples of the above embodiments. The above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. In conclusion, the scope of the present invention shall include those changes or substitutions and modifications which are obvious to those of ordinary skill in the art, and shall be subject to the appended claims.
Claims (4)
1. The utility model provides an electronic vacuum pump drive pawl, its characterized in that, includes the drive pawl body, is equipped with four pillars around the drive pawl body, and four pillars are two liang and set up around the drive pawl body for a set of symmetry, link to each other through connecting portion between every pillar and the drive pawl body, and the lateral part of every pillar all is equipped with the strengthening rib, and the drive pawl body is hollow cylinder.
2. The electronic vacuum pump driving claw according to claim 1, wherein the inner side surface of the strut is a working surface, the lower half part of the working surface is connected with the driving claw body through a connecting part, the connecting part is wedge-shaped, and an arc-shaped groove is formed at the connecting part of the connecting part and the driving claw body; the working surface is an arc surface or a combined surface, and the combined surface is formed by combining a square binding surface vertically arranged in the middle part and arc surfaces arranged on two sides of the square binding surface.
3. The driving claw of the electronic vacuum pump as claimed in claim 1, wherein the top surface of the pillar is a slanted plane, the slanted plane forms an angle of 3 to 5 degrees with the horizontal plane, and a chamfer is provided between the slanted plane and the pillar.
4. The driving pawl of the electric vacuum pump as claimed in claim 2, wherein a reinforcing rib is provided at the connection part of the connecting part and the driving pawl body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121415447.7U CN215292893U (en) | 2021-06-24 | 2021-06-24 | Driving claw of electronic vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121415447.7U CN215292893U (en) | 2021-06-24 | 2021-06-24 | Driving claw of electronic vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215292893U true CN215292893U (en) | 2021-12-24 |
Family
ID=79518198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121415447.7U Active CN215292893U (en) | 2021-06-24 | 2021-06-24 | Driving claw of electronic vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215292893U (en) |
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2021
- 2021-06-24 CN CN202121415447.7U patent/CN215292893U/en active Active
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