CN202790428U - Motor idle gear - Google Patents
Motor idle gear Download PDFInfo
- Publication number
- CN202790428U CN202790428U CN 201220397205 CN201220397205U CN202790428U CN 202790428 U CN202790428 U CN 202790428U CN 201220397205 CN201220397205 CN 201220397205 CN 201220397205 U CN201220397205 U CN 201220397205U CN 202790428 U CN202790428 U CN 202790428U
- Authority
- CN
- China
- Prior art keywords
- gear
- grooves
- motor
- wall
- idle gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Rotary Pumps (AREA)
Abstract
The utility model discloses a motor idler gear comprising a gear body. Gear teeth are arranged on an annular outer wall of the gear body and the surface of the gear teeth is provided with a cemented carbide layer. The annular inner wall of a center hole of the gear body is provided with multiple annular grooves. The front and back surfaces of a gear disc of the gear body are respectively provided with grooves opposite to each other. The gear disc is provided with a plurality of opening holes and each opening hole is respectively communicated with the corresponding groove. The motor idler gear is rational in structure and the abrasion resistance and service life of the motor idle gear are improved due to the fact that the cemented carbide layer is installed. Besides, due to the grooves at the front and back surfaces of the gear disc and the opening holes communicated with the grooves, the weight of the gear is reduced so that the vibration and noise of the gear in the transmission operating process are small.
Description
Technical field
The utility model relates to field of gears, specifically a kind of motor idle gear.
Background technique
Idle gear is the common gearing parts of motor internal, can be assemblied in other machinery such as motor, water pump.Existing idle gear is solid construction, and it is larger to cause it to vibrate in the course of the work, gives birth to a large amount of noises, thereby has influence on the normal operation of other machinery such as motor, water pump.In addition, there is defective easy to wear in the idle gear in the prior art, and working life is short.
The model utility content
The utility model has overcome the defective in the prior art, and a kind of motor idle gear is provided, and its vibration in the transmission operation process is little, and noise is little, long service life.
The technical solution of the utility model is as follows:
A kind of motor idle gear includes gear mass, is distributed with the gear teeth on the annular outer wall of gear mass, it is characterized in that: described tooth surface is provided with hard alloy layer; The annular inner wall of described gear mass center hole is provided with the multiple tracks annular groove; The front and back of described gear mass wheel disc is respectively equipped with the groove of mutual correspondence, is distributed with a plurality of perforates on the wheel disc, and each perforate is communicated in respectively between the corresponding groove.
A kind of motor idle gear is characterized in that: be equipped with seal ring in the described annular groove.The utility model has improved sealability by place seal ring in annular groove under the prerequisite that does not affect idle gear and driving interference fit.
The beneficial effects of the utility model:
The utility model is rational in infrastructure, by the setting of hard alloy layer, has improved wear resistance of the present utility model, has improved working life of the present utility model; In addition, the groove of the front and back of wheel disc and the perforate that is connected with groove have alleviated the weight of gear, make its vibration in the transmission operation process little, and noise is little.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Referring to accompanying drawing.
A kind of motor idle gear includes gear mass 1, is distributed with the gear teeth 2 on the annular outer wall of gear mass 1, and the gear teeth 2 surfaces are provided with hard alloy layer 7; The annular inner wall of described gear mass 1 center hole 3 is provided with multiple tracks annular groove 4; The front and back of described gear mass wheel disc is respectively equipped with the groove 5 of mutual correspondence, is distributed with a plurality of perforates 6 on the wheel disc, and each perforate 6 is communicated in respectively between the corresponding groove 5.
Be equipped with seal ring in the annular groove 4.
Claims (2)
1. a motor idle gear includes gear mass, is distributed with the gear teeth on the annular outer wall of gear mass, it is characterized in that: described tooth surface is provided with hard alloy layer; The annular inner wall of described gear mass center hole is provided with the multiple tracks annular groove; The front and back of described gear mass wheel disc is respectively equipped with the groove of mutual correspondence, is distributed with a plurality of perforates on the wheel disc, and each perforate is communicated in respectively between the corresponding groove.
2. a kind of motor idle gear according to claim 1 is characterized in that: be equipped with seal ring in the described annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220397205 CN202790428U (en) | 2012-08-11 | 2012-08-11 | Motor idle gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220397205 CN202790428U (en) | 2012-08-11 | 2012-08-11 | Motor idle gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202790428U true CN202790428U (en) | 2013-03-13 |
Family
ID=47817694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220397205 Expired - Fee Related CN202790428U (en) | 2012-08-11 | 2012-08-11 | Motor idle gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202790428U (en) |
-
2012
- 2012-08-11 CN CN 201220397205 patent/CN202790428U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20150811 |
|
| EXPY | Termination of patent right or utility model |