CN202768615U - Motor shaft with groove gear - Google Patents
Motor shaft with groove gear Download PDFInfo
- Publication number
- CN202768615U CN202768615U CN 201220525100 CN201220525100U CN202768615U CN 202768615 U CN202768615 U CN 202768615U CN 201220525100 CN201220525100 CN 201220525100 CN 201220525100 U CN201220525100 U CN 201220525100U CN 202768615 U CN202768615 U CN 202768615U
- Authority
- CN
- China
- Prior art keywords
- gear
- groove
- shaft
- motor shaft
- motor
- 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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Abstract
The utility model discloses a motor shaft with a groove gear. The motor shaft comprises a motor shaft body, the groove gear and a shaft retaining ring, a shaft extension portion of the motor shaft body is provided with a shaft extension flat side, the groove gear is sleeved on an outer circle of the shaft extension portion, a connection groove is arranged on one side surface of the groove gear, and the shaft extension flat side of the shaft extension portion of the motor shaft body is sleeved in the connection groove. The motor shaft is unique in design and simple in structure, the motor shaft body and the groove gear can transmit gear rotation torque without being connected by a flat key, the strength of the groove gear is greatly superior to that of an existing small gear connected by a flat key, and an inner hole and an outer circle of the groove gear can be designed to be small, so that the primary transmission ratio of a gear reducer motor and the gear rotation torque can be larger. The motor shaft is applicable to a sleeving gear structure with the large primary transmission ratio of the gear reducer motor.
Description
Technical field
The utility model relates to the toothed gearing electric motor field, specifically a kind of motor shaft with the groove gear.
Background technique
Toothed gearing electric motor on the existing market, the small gear of realizing first order velocity ratio generally adopts the cover toothing, as shown in Figure 1, namely the shaft extension section at the motor shaft output terminal puts small gear, and connect with flat key small gear is fixed on the motor shaft, with shaft block ring small gear is made axially locating at motor shaft.This cover toothing, simple in structure, easy to process, but owing in the small gear endoporus, must process the keyway that cooperates with flat key, and the distance between small gear keyway top and the tooth root section must reach the design strength requirement, therefore the small gear external diameter can not design very littlely, how to realize this cover toothing first order big speed ratio and large gear running torque, is one of toothed gearing electric motor field technical barrier that need to solve.
The model utility content
Technical problem to be solved in the utility model is to overcome the defective that above-mentioned prior art exists, a kind of motor shaft with the groove gear is provided, make toothed gearing electric motor realize that the small gear of first order velocity ratio still adopts the cover toothing, but can make first order velocity ratio and gear running torque larger.
For this reason, the utility model adopts following technological scheme: a kind of motor shaft with the groove gear, comprise motor shaft, the shaft extension section of described motor shaft is provided with a shaft extension flat side symmetrical with shaft axis, and cover has a groove gear on the shaft extension section cylindrical of motor shaft, one side of described groove gear be provided with one with shaft axis symmetrical connect groove, the flat square set of shaft extension of described motor shaft shaft extension section is within connecting groove.
As the further of technique scheme improved and replenish, the utility model is taked following technical measures:
The above-mentioned motor shaft with the groove gear, the cylindrical that groove gear another side is close to by motor shaft shaft extension section is provided with a shaft extension undercut groove, is provided with a shaft block ring in this shaft extension undercut groove.
The utility model design is unique, simple in structure, motor shaft and groove gear connect without flat key, but in the connection groove of groove gear, transmit the gear running torque by the flat square set of the shaft extension that is located at motor shaft, therefore the intensity of groove gear is better than the small gear intensity that existing flat key connects greatly, make endoporus and the cylindrical of groove gear can design littlely, thereby make toothed gearing electric motor first order velocity ratio and gear running torque can obtain larger.The utility model is applicable to the cover toothing of the first order big speed ratio of toothed gearing electric motor.
The utility model is described in further detail below in conjunction with specification drawings and specific embodiments.
Description of drawings
Fig. 1 is the existing motor shaft structure schematic diagram that adopts the cover toothing.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the structural representation of the utility model motor shaft.
Fig. 4 is the plan view of Fig. 3.
Fig. 5 is the structural representation of the utility model groove gear.
Fig. 6 is the right side view of Fig. 5.
Among the figure, the 1-motor shaft, 2-groove gear, the 3-shaft block ring, 4-shaft extension undercut groove, the flat side of 5-shaft extension, 6-connects groove.
Embodiment
Extremely shown in Figure 6 such as Fig. 2, a kind of motor shaft with the groove gear, comprise motor shaft 1, the shaft extension section of described motor shaft 1 is provided with a shaft extension flat side 5 symmetrical with shaft axis, and cover has a groove gear 2 on the shaft extension section cylindrical of motor shaft 1, one side of groove gear 2 be provided with one with shaft axis symmetrical connect groove 6, the flat side 5 of shaft extension of described motor shaft 1 shaft extension section is enclosed within and connects in the groove 6, can transmit the gear running torque.The cylindrical that groove gear 2 another sides are close to by described motor shaft 1 shaft extension section is provided with shaft extension undercut groove 4, is provided with shaft block ring 3 in this shaft extension undercut groove, and this shaft block ring is made axially locating to groove gear 2 at motor shaft.
Claims (2)
1. motor shaft with the groove gear, comprise motor shaft (1), it is characterized in that, the shaft extension section of described motor shaft (1) has a shaft extension flat side (5) symmetrical with shaft axis, and cover has a groove gear (2) on the shaft extension section cylindrical of motor shaft (1), have on one side of described groove gear (2) one with shaft axis symmetrical connect groove (6), the flat side of shaft extension (5) of described motor shaft (1) shaft extension section is enclosed within and connects in the groove (6).
2. the motor shaft with the groove gear according to claim 1, it is characterized in that, the cylindrical that groove gear (2) another side is close to by the shaft extension section of described motor shaft (1) is provided with a undercut groove (4), is provided with a shaft block ring (3) in this undercut groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220525100 CN202768615U (en) | 2012-09-28 | 2012-09-28 | Motor shaft with groove gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220525100 CN202768615U (en) | 2012-09-28 | 2012-09-28 | Motor shaft with groove gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202768615U true CN202768615U (en) | 2013-03-06 |
Family
ID=47775192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220525100 Expired - Fee Related CN202768615U (en) | 2012-09-28 | 2012-09-28 | Motor shaft with groove gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202768615U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422651A (en) * | 2015-12-14 | 2016-03-23 | 苏州安特实业有限公司 | Shaft connecting structure |
-
2012
- 2012-09-28 CN CN 201220525100 patent/CN202768615U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422651A (en) * | 2015-12-14 | 2016-03-23 | 苏州安特实业有限公司 | Shaft connecting structure |
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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: 20130306 Termination date: 20150928 |
|
| EXPY | Termination of patent right or utility model |