CN204878403U - Hub connection spare and have its lampblack absorber - Google Patents
Hub connection spare and have its lampblack absorber Download PDFInfo
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- CN204878403U CN204878403U CN201520566553.3U CN201520566553U CN204878403U CN 204878403 U CN204878403 U CN 204878403U CN 201520566553 U CN201520566553 U CN 201520566553U CN 204878403 U CN204878403 U CN 204878403U
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- shaft coupling
- coupling piece
- mounting hole
- hole
- rib
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Abstract
The utility model provides a hub connection spare and have its lampblack absorber. Hub connection spare is used for installing in the shaft hole, and hub connection spare is the elastomer, and hub connection spare has and waits to install a mounting hole of looks adaptation. Use the technical scheme of the utility model, the back is installed in the shaft hole through elastic hub connection to the axle, rotates the in -process at the axle and produces suddenly with higher speed or the at a reduced speed, vibration that hub connection spare can the absorption axes, be favorable to reducing because of the axle with higher speed or the noise that slows down and produce, also be favorable to slowing down the rigid impact between the part and the damage that produces.
Description
Technical field
The utility model relates to field of kitchen electric appliance, in particular to a kind of shaft coupling piece and the kitchen ventilator with it.
Background technique
For the ease of cleaning and the corrosion preventing oil smoke, on market, kitchen ventilator wind wheel is all that employing stainless steel wind wheel and flange are as a whole, and material is all the metal adopted.When high-end kitchen ventilator adopts DC motor Driver, after coupling wind wheel, because direct current generator attribute inherently exists commutation frequency and permanent-magnet magnetic pulling force, natural frequency is higher, when driving the metal wind wheel of rigidity, because of commutation torque oscillation and cogging torque vibration, and produce commutation noise and teeth groove noise, this noise allows people feel bad especially, and customer experience is poor.All there is the larger problem of noise in the product of the multiple producer on market.
Model utility content
Main purpose of the present utility model is to provide a kind of being conducive to reduce the shaft coupling piece of noise and have its kitchen ventilator.
To achieve these goals, according to an aspect of the present utility model, provide a kind of shaft coupling piece, shaft coupling piece is used for being arranged in axis hole, and shaft coupling piece is elastomer, and shaft coupling piece has the mounting hole suitable with axle to be installed.
Further, the perisporium of mounting hole is formed with the protruding structure for increasing friction.
Further, protruding structure comprises: multiple rib, is formed on the perisporium of mounting hole; And/or multiple boss, is formed on the perisporium of mounting hole.
Further, protruding structure comprises multiple rib, and rib extends along the axis of mounting hole; Or rib is arranged on the perisporium of mounting hole spirally.
Further, the cross section perpendicular to its bearing of trend of rib is trapezoidal.
Further, the angle at the end at the center of trapezoidal side and trapezoidal close mounting hole is 100 to 120 to spend.
Further, shaft coupling piece is formed with multiple through hole, through hole extends along the axis of mounting hole, and multiple through hole along mounting hole circumferentially.
Further, the perisporium of mounting hole is formed with multiple axially extended rib along mounting hole, through hole is positioned at the position at the center back to mounting hole of rib.
Further, the material of shaft coupling piece is rubber.
According to another aspect of the present utility model, provide a kind of kitchen ventilator, it is characterized in that, the wind wheel flange comprising wind wheel and be connected with wind wheel, wind wheel flange has axis hole, is provided with above-mentioned shaft coupling piece in axis hole.
Further, at least on the end face of shaft coupling piece, protective body is provided with.
Further, shaft coupling piece is injection-moulded in axis hole.
Application the technical solution of the utility model, axle is mounted on after in axis hole by flexible axle, when producing unexpected acceleration or deceleration in axle rotation process, shaft coupling piece can the vibration of absorption axes, be conducive to reducing the noise that produces because of axle acceleration or deceleration, be also conducive to the rigid impact slowed down between parts and the damage produced.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the structural representation of the shaft coupling piece of embodiment of the present utility model;
Fig. 2 shows the sectional view of Fig. 1;
Fig. 3 shows wind wheel and the wind wheel flange erection drawing of the kitchen ventilator of the utility model embodiment;
Fig. 4 shows the sectional view of Fig. 3.
Wherein, above-mentioned accompanying drawing comprises the following drawings mark:
1, shaft coupling piece; 2, mounting hole; 3, rib; 4, through hole; 5, wind wheel; 6, wind wheel flange.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
Show the structural representation of the shaft coupling piece of embodiment of the present utility model as Fig. 1, Fig. 2 shows the sectional view of Fig. 1.The shaft coupling piece of the present embodiment is used for being arranged in axis hole, and shaft coupling piece 1 is elastomer, and shaft coupling piece 1 has the mounting hole 2 suitable with axle to be installed.
Axle is arranged on after in axis hole by the shaft coupling piece 1 of the present embodiment, when producing unexpected acceleration or deceleration in axle rotation process, shaft coupling piece can the vibration of absorption axes, be conducive to reducing the noise that produces because of axle acceleration or deceleration, be also conducive to the rigid impact slowed down between parts and the damage produced.
The perisporium of mounting hole 2 is formed with the protruding structure for increasing friction, increase axle has the friction between shaft coupling piece 1, avoids axle and shaft coupling piece 1 to produce relative sliding, transferring power better.
Protruding structure can for being formed in the rib 3 on the perisporium of mounting hole 2, and multiple rib 3 is arranged on the perisporium of mounting hole equably, also can for being formed in the multiple projections on the perisporium of mounting hole 2, and multiple projection is evenly distributed on the perisporium of mounting hole 2.
Rib 3 can extend along the axis of mounting hole 2, also can be arranged on the perisporium of mounting hole 2 spirally.
Alternatively, the cross section perpendicular to its bearing of trend of rib 3 can be trapezoidal, rectangle or triangle.
In the present embodiment, the cross section of rib 3 is trapezoidal.Angle at the end at the center of trapezoidal side and trapezoidal close mounting hole 2 is 100 to 120 to spend.
Shaft coupling piece 1 is formed with multiple through hole 4, through hole 4 extends along the axis of mounting hole 2, and multiple through hole 4 along mounting hole 2 circumferentially.Shaft coupling piece 1 arranges multiple through hole, reduces the rigidity of shaft coupling piece 1, add the elasticity of shaft coupling piece 1, contribute to reducing vibration, be conducive to reducing noise further.
In the present embodiment, the perisporium of mounting hole 2 is formed with multiple axially extended rib 3 along mounting hole 2, through hole 4 is positioned at the position at the center back to mounting hole 2 of rib 3.
Alternatively, on the center line being centrally located at rib 3 of through hole 4.
In the present embodiment, the relatively soft rubber material of the material selection of shaft coupling piece 1, as nitrile rubber or silica gel.The hardness of shaft coupling piece 1 is chosen as CR40-CR55D degree.
Another aspect the present embodiment according to the application also discloses a kind of kitchen ventilator.Fig. 3 shows wind wheel and the wind wheel flange erection drawing of the kitchen ventilator of the utility model embodiment; Fig. 4 shows the sectional view of Fig. 3.The wind wheel flange 6 that kitchen ventilator has wind wheel 5 and is connected with wind wheel 5, wind wheel flange 6 has axis hole, and be provided with above-mentioned shaft coupling piece 1 in axis hole, motor is connected with wind wheel flange 6 by shaft coupling piece 1.Shaft coupling piece 1 is injection-moulded in the axis hole on wind wheel flange 6.Wind wheel 5 and wind wheel flange 6 are riveted together by four through holes.
Shaft coupling piece 1 adds the elasticity of wind wheel 5 and electric system and reduces the damping ratio of system, significantly reduce the vibration amplitude of system, be conducive to solving direct current generator mate with wind wheel 5 and produce the problem of noise, improve Consumer's Experience, improve the competitiveness of product in market.
At least on the end face of shaft coupling piece 1, be provided with protective body.Axle is arranged on after in axis hole by shaft coupling piece 1, protective coating can be applied and do not corroded by oil smoke with the shaft coupling piece comprising rubber material, or adopt cover to establish the protecting cover protection shaft coupling piece of shaft coupling piece 1.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (12)
1. a shaft coupling piece, it is characterized in that, described shaft coupling piece (1) is for being arranged in axis hole, and described shaft coupling piece (1) is elastomer, and described shaft coupling piece (1) has the mounting hole (2) suitable with axle to be installed.
2. shaft coupling piece according to claim 1, is characterized in that, the perisporium of described mounting hole (2) is formed with the protruding structure for increasing friction.
3. shaft coupling piece according to claim 2, is characterized in that, described protruding structure comprises:
Multiple rib (3), is formed on the perisporium of described mounting hole (2); And/or,
Multiple boss, is formed on the perisporium of described mounting hole (2).
4. shaft coupling piece according to claim 3, is characterized in that, described protruding structure comprises multiple described rib (3),
Described rib (3) extends along the axis of described mounting hole (2); Or,
Described rib (3) is arranged on the perisporium of described mounting hole (2) spirally.
5. shaft coupling piece according to claim 3, is characterized in that, the cross section perpendicular to its bearing of trend of described rib (3) is trapezoidal.
6. shaft coupling piece according to claim 5, is characterized in that, the angle at the end at the center of described trapezoidal side and described trapezoidal close described mounting hole (2) is 100 to 120 to spend.
7. shaft coupling piece according to claim 1, it is characterized in that, described shaft coupling piece (1) is formed with multiple through hole (4), described through hole (4) extends along the axis of described mounting hole (2), and multiple described through hole (4) along described mounting hole (2) circumferentially.
8. shaft coupling piece according to claim 7, it is characterized in that, the perisporium of described mounting hole (2) is formed with multiple axially extended rib (3) along described mounting hole (2), described through hole (4) is positioned at the position at the center back to described mounting hole (2) of described rib (3).
9. shaft coupling piece according to any one of claim 1 to 8, is characterized in that, the material of described shaft coupling piece is rubber.
10. a kitchen ventilator, it is characterized in that, the wind wheel flange (6) comprising wind wheel (5) and be connected with wind wheel (5), described wind wheel flange (6) has described axis hole, is provided with the shaft coupling piece according to any one of claim 1 to 9 in described axis hole.
11. kitchen ventilators according to claim 10, is characterized in that, at least on the end face of described shaft coupling piece (1), are provided with protective body.
12. kitchen ventilators according to claim 10, is characterized in that, described shaft coupling piece is injection-moulded in described axis hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520566553.3U CN204878403U (en) | 2015-07-29 | 2015-07-29 | Hub connection spare and have its lampblack absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520566553.3U CN204878403U (en) | 2015-07-29 | 2015-07-29 | Hub connection spare and have its lampblack absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204878403U true CN204878403U (en) | 2015-12-16 |
Family
ID=54822779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520566553.3U Active CN204878403U (en) | 2015-07-29 | 2015-07-29 | Hub connection spare and have its lampblack absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204878403U (en) |
-
2015
- 2015-07-29 CN CN201520566553.3U patent/CN204878403U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |