CN204493414U - A kind of motor shaft - Google Patents
A kind of motor shaft Download PDFInfo
- Publication number
- CN204493414U CN204493414U CN201420818746.9U CN201420818746U CN204493414U CN 204493414 U CN204493414 U CN 204493414U CN 201420818746 U CN201420818746 U CN 201420818746U CN 204493414 U CN204493414 U CN 204493414U
- Authority
- CN
- China
- Prior art keywords
- motor shaft
- cylindrical hole
- straight pin
- reducer
- insertion groove
- 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
Links
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to a kind of motor shaft, comprise motor shaft body, this motor shaft body is by the first reducer, second reducer and the 3rd reducer composition, second reducer is provided with cylindrical hole, in this cylindrical hole, be inserted with straight pin, and the end of straight pin is provided with flange, the inwall of cylindrical hole is provided with the insertion groove extended to bottom from cylindrical hole opening end, and the inwall of the bottom of cylindrical hole is provided with the engagement groove of circumference extension.This motor shaft adopts straight pin for flat key, easy to process, do not need large milling machine, just can process, when straight pin is inserted in cylindrical hole with drilling machine, the insertion groove of flange on cylindrical hole inwall of straight pin end slides into the joint of insertion groove and engagement groove, then slewing circle pin, the flange of straight pin end can be fastened in engagement groove, thus limits the radial stroke of straight pin, straight pin and motor shaft are connected firmly, and can not be thrown out of because of the high-speed rotary of motor shaft.
Description
Technical field
The utility model relates to a kind of motor shaft.
Background technique
Motor shaft mainly plays the effect of connection in motor, present motor shaft and slip ring sleeve, axle and when revolving silicon frame equijoin, radial location adopts plane key joint always, for major axis, keyseat needs very large milling machine, due to these union bodies, stressed very little in motor runs, flat key only plays the effect of radial location.And in the rotary course of motor shaft high speed, in order to prevent flat key to be thrown out of, flat key, after being inserted into keyway, also needs extra bearing pin to be fixed, and the surface that both have impact on motor shaft neatly also increases production technology and the cost of production of motor shaft.
Model utility content
The purpose of this utility model is the defect in order to solve in prior art existing for motor shaft, provides a kind of with straight pin and the motor shaft fixed voluntarily of straight pin.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of motor shaft, comprise motor shaft body, this motor shaft body is by the first reducer, second reducer and the 3rd reducer composition, described second reducer is provided with cylindrical hole, straight pin is inserted with in this cylindrical hole, the end of described straight pin is provided with flange, the inwall of described cylindrical hole is provided with the insertion groove extended to bottom from cylindrical hole opening end, the inwall of the bottom of described cylindrical hole is provided with the engagement groove of circumference extension, the head of engagement groove is connected with the side of described insertion groove, and the afterbody of engagement groove ends at the opposite side of insertion groove and is not connected with it.
Above-mentioned motor shaft, described first reducer, the second reducer, the reducing of the 3rd reducer reduces gradually.
Above-mentioned motor shaft, the position of described cylindrical hole and straight pin is positioned at the central axis of described motor shaft.
The beneficial effects of the utility model are: this motor shaft adopts straight pin for flat key, one is easy to process, do not need large milling machine, just can process with drilling machine, two to be that locating stud price compares flat key more cheap, when straight pin is inserted in cylindrical hole, the insertion groove of flange on cylindrical hole inwall of straight pin end slides into the joint of insertion groove and engagement groove, then slewing circle pin, the flange of straight pin end can be fastened in engagement groove, thus limit the radial stroke of straight pin, straight pin and motor shaft are connected firmly, can not be thrown out of because of the high-speed rotary of motor shaft.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the connection diagram of the utility model straight pin and motor shaft second reducer.
Embodiment
Further understand for making to have structure characteristic of the present utility model and effect of reaching and be familiar with, coordinate detailed description in order to preferred embodiment and accompanying drawing, be described as follows:
As Fig. 1, shown in Fig. 2, a kind of motor shaft, comprise motor shaft body, this motor shaft body is by the first reducer 1, second reducer 2 and the 3rd reducer 3 form, second reducer 2 is provided with cylindrical hole 4, straight pin 5 is inserted with in this cylindrical hole 4, the end of straight pin 5 is provided with flange 6, the inwall of cylindrical hole 4 is provided with the insertion groove 7 extended to bottom from cylindrical hole 4 opening end, the inwall of the bottom of cylindrical hole 4 is provided with the engagement groove 8 of circumference extension, the head of engagement groove 8 is connected with the side of insertion groove 7, the afterbody of engagement groove 8 ends at the opposite side of insertion groove 7 and is not connected with it.
The reducing of the first reducer 1, second reducer the 2, three reducer 3 reduces gradually, and the position of cylindrical hole 4 and straight pin 5 is positioned at the central axis of motor shaft.
This motor shaft adopts straight pin 5 for flat key, one is easy to process, do not need large milling machine, just can process with drilling machine, two to be that straight pin price compares flat key more cheap, when straight pin 5 is inserted in cylindrical hole 4, the insertion groove 7 of flange 6 on cylindrical hole inwall of straight pin 5 end slides into the joint of insertion groove 7 and engagement groove 8, then slewing circle pin 5, the flange 6 of straight pin end can be fastened in engagement groove 8, thus limiting the radial stroke of straight pin, straight pin 5 and motor shaft be connected firmly, and can not be thrown out of because of the high-speed rotary of motor shaft.
More than show and describe basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; the just principle of the present utility model described in above-described embodiment and specification; under the prerequisite not departing from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall in claimed scope of the present utility model.The protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (3)
1. a motor shaft, comprise motor shaft body, this motor shaft body is by the first reducer, second reducer and the 3rd reducer composition, it is characterized in that, described second reducer is provided with cylindrical hole, straight pin is inserted with in this cylindrical hole, the end of described straight pin is provided with flange, the inwall of described cylindrical hole is provided with the insertion groove extended to bottom from cylindrical hole opening end, the inwall of the bottom of described cylindrical hole is provided with the engagement groove of circumference extension, the head of engagement groove is connected with the side of described insertion groove, the afterbody of engagement groove ends at the opposite side of insertion groove and is not connected with it.
2. motor shaft according to claim 1, is characterized in that, described first reducer, the second reducer, and the reducing of the 3rd reducer reduces gradually.
3. motor shaft according to claim 1, is characterized in that, the position of described cylindrical hole and straight pin is positioned at the central axis of described motor shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420818746.9U CN204493414U (en) | 2014-12-23 | 2014-12-23 | A kind of motor shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420818746.9U CN204493414U (en) | 2014-12-23 | 2014-12-23 | A kind of motor shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204493414U true CN204493414U (en) | 2015-07-22 |
Family
ID=53572735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420818746.9U Expired - Fee Related CN204493414U (en) | 2014-12-23 | 2014-12-23 | A kind of motor shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204493414U (en) |
-
2014
- 2014-12-23 CN CN201420818746.9U patent/CN204493414U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203751363U (en) | Multifunctional chuck for lathe tailstock | |
| CN204493414U (en) | A kind of motor shaft | |
| CN204128580U (en) | A kind of rotating mechanism of electron detection device | |
| CN204338998U (en) | Boring and milling machine milling head extension bar | |
| CN206785707U (en) | Adjusting apparatus is locked with pump shaft head in a kind of underground | |
| CN204173206U (en) | A kind of electronic product wrapping machine grasping structures | |
| CN205026054U (en) | Drive mechanism's locking device | |
| CN205036698U (en) | Abnormal shape screw | |
| CN203470947U (en) | Wear-resisting chuck | |
| CN203170985U (en) | Transmission shaft | |
| CN204610597U (en) | A kind of connection set of motor output shaft | |
| CN205033025U (en) | Grind bed core stick | |
| CN204344660U (en) | The rotating disk main shaft of lopping coating integrated machine | |
| CN203730497U (en) | Taper pin structure used for take-up machine | |
| CN203109267U (en) | Shaft sleeve type deep-hole cutter | |
| CN203702829U (en) | Connecting device of connecting rod and connecting rod cap of engine | |
| CN202639339U (en) | Coupling rough-machining opposite-ejection device | |
| CN204714999U (en) | The new Joining Structure of a kind of roundlet mantle cylinder and lower tray | |
| CN202639901U (en) | Motorcycle engine crank inclined oil hole drilling jig | |
| CN205117948U (en) | Lock nut of engraver | |
| CN203948496U (en) | A kind of shaft connection mechanism | |
| CN203926459U (en) | A kind of shaft connection mechanism | |
| CN202701455U (en) | Mold used for machining shaft end gland bush | |
| CN205464650U (en) | Rocking arm auger shell line tapping specialized tool | |
| CN204200794U (en) | A kind of coal machine coupling pin |
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: 20150722 Termination date: 20151223 |
|
| EXPY | Termination of patent right or utility model |