CN201393144Y - Structure of self-cooling variable-frequency motor with coder - Google Patents
Structure of self-cooling variable-frequency motor with coder Download PDFInfo
- Publication number
- CN201393144Y CN201393144Y CN200920040187U CN200920040187U CN201393144Y CN 201393144 Y CN201393144 Y CN 201393144Y CN 200920040187 U CN200920040187 U CN 200920040187U CN 200920040187 U CN200920040187 U CN 200920040187U CN 201393144 Y CN201393144 Y CN 201393144Y
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- China
- Prior art keywords
- rear end
- coder
- motor
- special
- main shaft
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- Expired - Fee Related
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Abstract
The utility model relates to a structure of a self-cooling variable-frequency motor with a coder; the structure is characterized in that: an electric motor main shaft is supported and arranged in a special rear end cover by a bearing component, an aluminium fan, an axial retainer ring and an elastic joint are sequentially arranged on the electric motor main shaft, a coder bracket is arranged on the special rear end cover of the motor, the coder is arranged on the coder bracket, and the coder and the electric motor main shaft are connected by the elastic joint, and a fan cover is arranged on the special rear end cover of the motor. Three supporting legs are arranged on the special rear end cover of the motor, and seam allowance are processed on the three supporting legs, so as to ensure the concentricity of the seam allowance and the seam allowance on the front surface of the special rear end cover of the motor. The structure has simple, compact and rational structure; after the coder is installed, the concentricity of the coder and the electric motor main shaft can be ensured, the whole reliability of the installation is greatly improved, the coder bracket has enough ventilating area along the axial direction, and the fan among the three supporting legs of a non shaft-extension end cover is ensured to generate enough blast volume.
Description
Technical field
The utility model relates to a kind of band coder structure of self cooling variable-frequency motor, and specifically a kind of electric motor fan and encoder are installed on the structure of motor jointly, belong to technical field of motors.
Background technology
In prior art, along with the continuous development of frequency conversion control technique, new requirement is proposed constantly also for the control of variable-frequency motor, singly be not confined to simple open loop control, much also use closed-loop control.So just can better control rotating speed of motor and transposition.For the existing traditional structure of installing encoders of the structure of forced ventilation cooling, but some variable-frequency motor is to adopt from cooling off structure, and this proposes a new requirement to the transmission of encoder and fixing structure.This structure was once adopted several different methods both at home and abroad: have to add transition frame; Have and add connecting plate; Also have to be directly installed on motor fan housing outer (the method is installed the back and is easy to run into encoder and influences its installation accuracy in transportation), these methods since its reliability how not to be used.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned weak point, thereby provide a kind of band coder structure of self cooling variable-frequency motor, concentricity with electric machine main shaft after encoder is installed can guarantee, the reliability of integral installation greatly improves, the encoder support axially can guarantee enough draught areas, and can guarantee that the fan between three legs of non-shaft extension broken ends of fractured bone lid can produce enough air quantity.
The technical scheme that provides according to the utility model, a kind of band coder structure of self cooling variable-frequency motor comprises aluminium fan, the special-purpose rear end cap of motor, electric machine main shaft, feature is: electric machine main shaft is supported by bearing assembly and is installed in the special-purpose rear end cap, aluminium fan, shaft block ring and elasticity shaft coupling are installed on electric machine main shaft successively, the encoder support is installed on the special-purpose rear end cap of motor, encoder is installed on the encoder support, connected by the elasticity shaft coupling between encoder and the electric machine main shaft, fan housing is installed on the special-purpose rear end cap of motor.
The special-purpose rear end cap of described motor is provided with three legs, and processes seam on three legs, guarantees the concentricity of the special-purpose rear end cap of seam and motor front seam.The joint face of the encoder support that three legs on the special-purpose rear end cap of described encoder and motor are connected must guarantee its concentricity.
Compared with the prior art the utility model has the following advantages:
The utility model is simple, compact and reasonable for structure; Concentricity with electric machine main shaft after encoder is installed can guarantee, the reliability of integral installation greatly improves, the encoder support axially can guarantee enough draught areas, and can guarantee that the fan between three legs of non-shaft extension broken ends of fractured bone lid can produce enough air quantity.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Embodiment during following the utility model is incited somebody to action in conjunction with the accompanying drawings is further described:
As shown in Figure 1, comprise encoder 1, elasticity shaft coupling 2, fan housing 3, encoder support 4, aluminium fan 5, the special-purpose rear end cap 6 of motor, electric machine main shaft 7, shaft block ring 8 etc.
The utility model electric machine main shaft 7 is supported by bearing assembly and is installed in the special-purpose rear end cap 6, aluminium fan 5, shaft block ring 8 and elasticity shaft coupling 2 are installed on electric machine main shaft 7 successively, encoder support 4 is installed on the special-purpose rear end cap 6 of motor, encoder 1 is installed on the encoder support 4, connected by elasticity shaft coupling 2 between encoder 1 and the electric machine main shaft 7, fan housing 3 is installed on the special-purpose rear end cap 6 of motor.
The utility model is owing to adopt to be provided with at the special-purpose rear end cap 6 (comprising mould) of the motor back side and increase by three legs, and at three legs processing seams, can guarantee seam with the concentricity of end cap front seam.The joint face of the encoder support 4 that 6 three legs of encoder 1 and the special-purpose rear end cap of motor are connected must guarantee its concentricity, concentricity with electric machine main shaft after encoder 1 is installed like this can guarantee, the reliability of integral installation greatly improves, encoder support 4 axially should guarantee enough draught areas, could guarantee that the fan between three legs of non-shaft extension broken ends of fractured bone lid can produce enough air quantity, so fan 5 adopts the die casting aluminium material.Owing to increase encoder, so fan housing length must extend.
The utility model can be guaranteed to beat in 0.02mm with the circular runout of A section on the amesdial check electric machine main shaft 7.After finishing, sign indicating number device support 4, encoder 1,2 assemblings of elasticity shaft coupling, check the transmission situation of elasticity shaft coupling 2 with quick-moving fast electric rotating machine main shaft.If normal,, reexamine the transmission situation of elasticity shaft coupling 2 with the empty load of motor operation.Can think that so just this encoder 1 installs.
Claims (3)
1, a kind of band coder structure of self cooling variable-frequency motor, comprise aluminium fan (5), the special-purpose rear end cap (6) of motor, electric machine main shaft (7), it is characterized in that: electric machine main shaft (7) is supported by bearing assembly and is installed in the special-purpose rear end cap (6), aluminium fan (5) is installed on electric machine main shaft (7) successively, shaft block ring (8) and elasticity shaft coupling (2), encoder support (4) is installed on the special-purpose rear end cap of motor (6), encoder (1) is installed on the encoder support (4), connected by elasticity shaft coupling (2) between encoder (1) and the electric machine main shaft (7), fan housing (3) is installed on the special-purpose rear end cap of motor (6).
2, the band coder structure of a kind of self cooling variable-frequency motor according to claim 1, it is characterized in that the special-purpose rear end cap of described motor (6) is provided with three legs, on three legs, be processed with seam, the special-purpose rear end cap (6) of seam and motor front seam concentricity.
3, the band coder structure of a kind of self cooling variable-frequency motor according to claim 1 is characterized in that the joint face concentricity of the encoder support (4) that three legs on the special-purpose rear end cap of described encoder (1) and motor (6) are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920040187U CN201393144Y (en) | 2009-04-14 | 2009-04-14 | Structure of self-cooling variable-frequency motor with coder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920040187U CN201393144Y (en) | 2009-04-14 | 2009-04-14 | Structure of self-cooling variable-frequency motor with coder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201393144Y true CN201393144Y (en) | 2010-01-27 |
Family
ID=41599965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920040187U Expired - Fee Related CN201393144Y (en) | 2009-04-14 | 2009-04-14 | Structure of self-cooling variable-frequency motor with coder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201393144Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532310A (en) * | 2013-10-23 | 2014-01-22 | 中达电机股份有限公司 | Mounting structure of hollow shaft encoder in self-cooled motor |
| CN103746516A (en) * | 2013-12-23 | 2014-04-23 | 江苏永钢集团有限公司 | Device encoder of cooling fan of hoist motor |
| CN105576885A (en) * | 2016-03-01 | 2016-05-11 | 青岛海尔空调器有限总公司 | Double-limit shaft and motor |
-
2009
- 2009-04-14 CN CN200920040187U patent/CN201393144Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532310A (en) * | 2013-10-23 | 2014-01-22 | 中达电机股份有限公司 | Mounting structure of hollow shaft encoder in self-cooled motor |
| CN103532310B (en) * | 2013-10-23 | 2015-09-30 | 中达电机股份有限公司 | The mounting structure of hollow shaft encoder in non-ventilated motor |
| CN103746516A (en) * | 2013-12-23 | 2014-04-23 | 江苏永钢集团有限公司 | Device encoder of cooling fan of hoist motor |
| CN105576885A (en) * | 2016-03-01 | 2016-05-11 | 青岛海尔空调器有限总公司 | Double-limit shaft and motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100127 Termination date: 20140414 |