CN216768236U - Low-noise bevel gear transmission device easy to assemble and used for electric shaver - Google Patents
Low-noise bevel gear transmission device easy to assemble and used for electric shaver Download PDFInfo
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- CN216768236U CN216768236U CN202123311150.9U CN202123311150U CN216768236U CN 216768236 U CN216768236 U CN 216768236U CN 202123311150 U CN202123311150 U CN 202123311150U CN 216768236 U CN216768236 U CN 216768236U
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Abstract
The utility model discloses a low-noise easy-assembly bevel gear transmission device for an electric shaver, which comprises a gear pair fixing support, wherein a mounting frame is arranged on the gear pair fixing support, a gear mounting plate is arranged in the mounting frame, one end of the gear mounting plate is a driving bevel gear mounting part, the other end of the gear mounting plate is a driven bevel gear mounting part, a driving bevel gear is arranged on the driving bevel gear mounting part, a driven bevel gear is arranged on the driven bevel gear mounting part, each tooth of the driving bevel gear is provided with a first tooth top part and a first tooth root part, each tooth of the driven bevel gear is provided with a second tooth top part and a second tooth root part, a gap is formed between the second tooth top part and the first tooth root part, and a gap is formed between the first tooth top part and the second tooth root part. According to the utility model, through the optimized design of the bevel gear, the clearance between the tooth top and the tooth bottom is increased, the driving bevel gear and the driven bevel gear cannot interfere with each other when being assembled, the assembly is easy, and the noise generated by the contact of the tooth top and the tooth bottom is reduced. The effects of easy assembly and low noise are achieved.
Description
Technical Field
The utility model relates to a gear transmission device of an electric shaver, in particular to a low-noise and easy-assembly bevel gear transmission device for the electric shaver.
Background
Electric shavers have been developed as a necessity of life. With the continuous progress of electric shaver technology, the demand of people for the shaver is higher and higher. The requirements for sharpness, comfort, rapid shaving and the like are increasing. In order to achieve the above effects, the design requirements for the internal gear pair are also increasing.
Due to the fact that the existing gear pair fixing support structure and the shaft form an included angle, when the gear pair is assembled, a driving gear can be installed firstly, and then a driven gear is installed from top to bottom in the direction of the shaft intersection angle. Under this condition, assembly interference easily appears when the gear pair assembles, even if assemble by force, the gear pair is because the interference of gear pair in the operation process, causes the running noise big.
Disclosure of Invention
In order to overcome the disadvantages and shortcomings of the prior art, the present invention is directed to a low noise easy-to-assemble bevel gear transmission for an electric shaver.
The purpose of the utility model is realized by the following technical scheme: a low-noise bevel gear transmission device easy to assemble for an electric shaver comprises an integrally formed gear pair fixing bracket, the gear pair fixing support is provided with an installation frame, a gear installation plate is arranged in the installation frame, one end of the gear mounting plate is a driving bevel gear mounting part, the other end of the gear mounting plate is a driven bevel gear mounting part, the driven bevel gear mounting part is arranged by inclining 15 degrees, a driving bevel gear is arranged on the driving bevel gear mounting part, the driven bevel gear mounting part is provided with a driven bevel gear, each tooth of the driving bevel gear is provided with a first tooth top part and a first tooth root part, each tooth of the driven bevel gear is provided with a second tooth top part and a second tooth root part, a gap is formed between the second tooth top part and the first tooth root part when the driving bevel gear is meshed with the driven bevel gear, and a gap is formed between the first tooth top part and the second tooth root part.
As an improvement of the low-noise easy-to-assemble bevel gear transmission for an electric shaver of the present invention, the tooth root height coefficient of the drive bevel gear and the driven bevel gear ranges from 1.55 to 1.85, and the tooth tip height coefficient of the drive bevel gear and the driven bevel gear ranges from 1.0 to 0.85.
As an improvement of the low-noise easy-to-assemble bevel gear transmission for an electric shaver of the present invention, the tooth root height coefficient of the drive bevel gear and the driven bevel gear is 1.6, and the tooth crest height coefficient of the drive bevel gear and the driven bevel gear is 0.9.
As an improvement of the low-noise easy-assembly bevel gear transmission device for the electric shaver, the driven bevel gear is installed on the driven bevel gear installation part in an inclined mode of 15 degrees, and an included angle between the central axis of the driving bevel gear and the central axis of the driven bevel gear is 15 degrees.
As an improvement of the low-noise easy-assembly bevel gear transmission device for the electric shaver, a first mounting hole is formed in the driving bevel gear mounting portion, an annular step is formed in the side wall of the first mounting hole, the driving bevel gear is mounted on the first mounting hole, a second mounting hole is formed in the driven bevel gear mounting portion, and the driven bevel gear is mounted on the second mounting hole.
As an improvement of the low-noise easy-assembly bevel gear transmission device for the electric shaver, the edge of the gear mounting plate is connected to the gear pair fixing support through a plurality of connecting ribs, and the driving bevel gear mounting part is further provided with a mounting through hole.
As an improvement of the low-noise easy-assembly bevel gear transmission device for the electric shaver, a plurality of cylindrical mounting seats are arranged at intervals on the edge of the gear pair fixing support.
The utility model has the beneficial effects that: according to the utility model, through the optimized design of the bevel gear, the clearance between the tooth top and the tooth bottom is increased, the driving bevel gear and the driven bevel gear cannot interfere with each other when being assembled, the assembly is easy, and the noise generated by the contact of the tooth top and the tooth bottom is reduced. The effects of easy assembly and low noise are achieved.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is an exploded view of the present invention;
FIG. 4 is a schematic view of the drive bevel gear and driven bevel gear configuration of the present invention;
the reference signs are: 1. the gear pair fixing support 2, the mounting frame 3, the gear mounting plate 4, the drive bevel gear mounting part 5, the driven bevel gear mounting part 6, the drive bevel gear 7, the driven bevel gear 31, the connecting rib 61, the first tooth top part 62, the first tooth root part 71, the second tooth top part 72, the second tooth root part 41, the first mounting hole 42, the annular step 43, the mounting through hole 51, the second mounting hole 11 and the cylindrical mounting seat.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
As shown in FIG. 1, a low-noise easy-assembly bevel gear transmission device for an electric shaver comprises an integrally formed gear pair fixing bracket 1, a mounting frame 2 is arranged on the gear pair fixing bracket 1, a gear mounting plate 3 is arranged in the mounting frame 2, one end of the gear mounting plate 3 is a driving bevel gear mounting part 4, the other end is a driven bevel gear mounting part 5, the driven bevel gear mounting part 5 is arranged at an inclination angle of 15 degrees, a driving bevel gear 6 is arranged on the driving bevel gear mounting part 4, a driven bevel gear 7 is arranged on the driven bevel gear mounting part 5, each tooth of the driving bevel gear 6 is provided with a first tooth top part 61 and a first tooth root part 62, each tooth of the driven bevel gear 7 is provided with a second tooth top part 71 and a second tooth root part 72, when the driving bevel gear 6 is meshed with the driven bevel gear 7, a gap is formed between the second tooth top part 71 and the first tooth root part 62, there is a gap between the first tooth top portion 61 and the second tooth root portion 72.
Preferably, the tooth root height coefficients of the driving bevel gear and the driven bevel gear range from 1.55 to 1.85, and the tooth crest height coefficients of the driving bevel gear and the driven bevel gear range from 1.0 to 0.85.
The optimal size for the utility model is as follows: the tooth root height coefficient range of the driving bevel gear and the driven bevel gear is 1.6, and the tooth crest height coefficient of the driving bevel gear and the driven bevel gear is 0.9. The dedendum height can be obtained by multiplying the dedendum height coefficient by the gear module, and the addendum height can be obtained by multiplying the addendum height coefficient by the gear module.
Preferably, the driven bevel gear 7 is installed on the driven bevel gear installation part 5 to be inclined by 15 degrees, and an angle between the central axis of the drive bevel gear 6 and the central axis of the driven bevel gear 7 is 15 degrees. The use comfort of the electric shaver can be improved by designing the included angle to be 15 degrees.
Preferably, the drive bevel gear mounting part 4 is provided with a first mounting hole 41, an annular step 42 is provided on a side wall of the first mounting hole 41, the drive bevel gear 6 is mounted on the first mounting hole 41, the driven bevel gear mounting part 5 is provided with a second mounting hole 51, and the driven bevel gear 7 is mounted on the second mounting hole 51.
Preferably, the edge of the gear mounting plate 3 is connected to the gear pair fixing bracket 1 through a plurality of connecting ribs 31, and the driving bevel gear mounting portion 4 is further provided with a mounting through hole 43. The mounting through-holes 43 can be used to fasten the holder by screwing, reducing vibration of the electric shaver during use.
Preferably, the edge of the gear pair fixing bracket 1 is provided with a plurality of cylindrical mounting seats 11 at intervals. The cylindrical mounting 11 can be used for a fixed connection in the housing of an electric shaver.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and arrangements of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A low-noise easy-assembly bevel gear transmission device for an electric shaver comprises an integrally-formed gear pair fixed support and is characterized in that an installation frame is arranged on the gear pair fixed support, a gear installation plate is arranged in the installation frame, one end of the gear installation plate is a driving bevel gear installation part, the other end of the gear installation plate is a driven bevel gear installation part, the driven bevel gear installation part inclines by 15 degrees, a driving bevel gear is arranged on the driving bevel gear installation part, a driven bevel gear is arranged on the driven bevel gear installation part, each tooth of the driving bevel gear is provided with a first tooth top part and a first tooth root part, each tooth of the driven bevel gear is provided with a second tooth top part and a second tooth root part, and a gap is formed between the second tooth top part and the first tooth root part when the driving bevel gear is meshed with the driven bevel gear, a gap is provided between the first tooth crest portion and the second tooth root portion.
2. The low-noise easy-to-assemble bevel gear transmission for an electric shaver according to claim 1, wherein the tooth root height coefficient of the driving bevel gear and the driven bevel gear ranges from 1.55 to 1.85, and the tooth tip height coefficient of the driving bevel gear and the driven bevel gear ranges from 1.0 to 0.85.
3. The low noise easy-to-assemble bevel gear transmission for an electric shaver according to claim 1, wherein the tooth root height coefficient of the driving bevel gear and the driven bevel gear is 1.6, and the tooth tip height coefficient of the driving bevel gear and the driven bevel gear is 0.9.
4. The low-noise easy-to-assemble bevel gear transmission for an electric shaver as set forth in claim 1, wherein the driven bevel gear is installed on the driven bevel gear installation part with an inclination of 15 degrees, and a central axis of the driving bevel gear forms an angle of 15 degrees with a central axis of the driven bevel gear.
5. The low-noise easy-to-assemble bevel gear transmission for an electric shaver according to claim 1, wherein a first mounting hole is provided on the drive bevel gear mounting portion, an annular step is provided on a side wall of the first mounting hole, the drive bevel gear is mounted on the first mounting hole, a second mounting hole is provided on the driven bevel gear mounting portion, and the driven bevel gear is mounted on the second mounting hole.
6. The low-noise easy-to-assemble bevel gear transmission for an electric shaver according to claim 1, wherein the edge of the gear mounting plate is connected to the gear pair fixing bracket by a plurality of connecting ribs, and the drive bevel gear mounting portion is further provided with a mounting through hole.
7. The low noise easy-to-assemble bevel gear transmission for an electric shaver according to claim 1, wherein the edge of the gear pair fixing bracket is provided with a plurality of cylindrical mounting seats at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123311150.9U CN216768236U (en) | 2021-12-27 | 2021-12-27 | Low-noise bevel gear transmission device easy to assemble and used for electric shaver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123311150.9U CN216768236U (en) | 2021-12-27 | 2021-12-27 | Low-noise bevel gear transmission device easy to assemble and used for electric shaver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216768236U true CN216768236U (en) | 2022-06-17 |
Family
ID=81968236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123311150.9U Active CN216768236U (en) | 2021-12-27 | 2021-12-27 | Low-noise bevel gear transmission device easy to assemble and used for electric shaver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216768236U (en) |
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2021
- 2021-12-27 CN CN202123311150.9U patent/CN216768236U/en active Active
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