CN210724429U

CN210724429U - Self-cooling motor structure

Info

Publication number: CN210724429U
Application number: CN201922404173.0U
Authority: CN
Inventors: 吕世波; 张晶高; 郝凤宽
Original assignee: Dalian Dalmo Electric Motor Co ltd
Current assignee: Dalian Dalmo Electric Motor Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-06-09
Anticipated expiration: 2029-12-27

Abstract

The utility model belongs to the technical field of motor cooling, in particular to a self-cooling motor structure, which comprises a fan, a fan cover and an encoder component; the fan suit is at the non-drive end of motor spindle, and the fan outside is provided with the fan housing, the encoder subassembly sets up outside the fan housing, and the encoder subassembly is connected to motor spindle through the connecting axle on, the encoder subassembly sets up the encoder cover outward. The utility model discloses a motor structure can realize the self-cooling of motor, and the encoder setting need not dismantle the fan housing during maintenance outside the motor fan housing simultaneously, also prevents fan damage encoder in the fan housing, simple structure, easy maintenance.

Description

Self-cooling motor structure

Technical Field

The utility model belongs to the technical field of the motor cooling, concretely relates to from fan cold type motor structure.

Background

The motor is an electromagnetic device for realizing electric energy conversion or transmission according to the electromagnetic induction law, and the motor is mainly used for generating driving torque and serving as a power source of electric appliances or various machines. Because the motor can produce a large amount of heats at the during operation, if the heat can not obtain effectual giving off, then can direct influence the availability factor and the life-span of motor. In the existing method, a fan is usually used for cooling a motor or a fan is arranged in the motor, because the motor needs to measure information such as the magnetic pole position, the rotating angle, the rotating speed and the like of the motor through an encoder in the working process, the encoder is arranged in the motor and is not beneficial to the maintenance and the inspection of the encoder, and the fan is easy to interfere with the encoder and damage the encoder, so that the normal use of the motor is influenced.

Disclosure of Invention

According to the defects existing in the prior art, the utility model aims at providing a can effectively carry out the motor cooling protect the encoder when from fan cold type motor structure.

In order to achieve the above object, the utility model adopts the following technical scheme: a self-cooling motor structure comprises a fan, a fan cover and an encoder assembly; the fan suit is at the non-drive end of motor spindle, and the fan outside is provided with the fan housing, the encoder subassembly sets up outside the fan housing, and the encoder subassembly is connected to motor spindle through the connecting axle on, the encoder subassembly sets up the encoder cover outward.

Further, the motor spindle extends to the outside of the fan cover.

Further, the encoder subassembly includes ring flange, linking bridge and encoder, the ring flange passes through bearing suit on motor spindle, and a side end face that the fan housing was kept away from to the bearing sets up the bearing cap, the encoder is connected to on the ring flange terminal surface through annular linking bridge, and the encoder axle is connected to motor spindle through the connecting axle on, and encoder axle, connecting axle and motor spindle are concentric, and three's axle center is located linking bridge's central line.

Furthermore, the bearing cover is connected to the end face of the flange plate through a plurality of bearing cover screws in the axial direction, a spigot is arranged on one side, close to the bearing, of the bearing cover, the spigot is in contact with the inner diameter of the flange plate, and a corrugated spring piece is arranged between the end face of the bearing and the bearing cover.

Furthermore, one end of the connecting shaft is axially connected to the end face of the motor spindle through a plurality of connecting shaft screws, and the other end of the connecting shaft is connected with the encoder shaft through a coupler.

Furthermore, the flange plate is axially connected to the wind cover through a plurality of flange plate bolts.

Furthermore, the connecting support is connected and positioned through a plurality of axially arranged connecting support bolts, the connecting support bolts penetrate through the flange plate to be connected to the wind shield, an annular positioning surface is arranged on the end face, connected with the connecting support, of the flange plate, and an annular groove matched with the annular positioning surface is arranged in the inner diameter of the connecting support.

Furthermore, the end face of the encoder is axially connected to the connecting support through a plurality of encoder bolts.

Further, the encoder is an integrated overspeed switch encoder.

Further, the fan is arranged on the outer side of the rear end cover of the motor.

The utility model has the advantages that: the utility model discloses a motor structure can realize the self-cooling of motor, and the encoder setting need not dismantle the fan housing during maintenance outside the motor fan housing simultaneously, also prevents fan damage encoder in the fan housing, simple structure, easy maintenance.

Drawings

FIG. 1 is a partial schematic view of a self-cooling electric machine;

FIG. 2 is an enlarged view of FIG. 1 at A;

in the figure: 1. fan, 2, fan housing, 3, encoder, 4, motor spindle, 5, encoder cover, 6, ring flange, 7, linking bridge, 8, bearing cap, 9, bearing, 10, connecting axle, 11, encoder axle, 12, bearing cap screw, 13, connecting axle screw, 14, shaft coupling, 15, ring flange bolt, 16, linking bridge bolt, 17, encoder bolt, 18, ripple spring leaf.

Detailed Description

In order to make the structure and function of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solution in the embodiments of the present invention.

Referring to fig. 1-2, a self-cooling motor structure includes a fan 1, a fan housing 2 and an encoder assembly; fan 1 suit is at the non-drive end of motor spindle 4, and fan 1 outside is provided with fan housing 2, the encoder subassembly sets up outside fan housing 2, and the encoder subassembly passes through connecting axle 10 to be connected to motor spindle 4 on, sets up encoder cover 5 outside the encoder subassembly, motor spindle 4 extends to outside fan housing 2.

Further, the encoder subassembly includes ring flange 6, linking bridge 7 and encoder 3, ring flange 6 passes through bearing 9 suit on motor spindle 4, and bearing 9 keeps away from a side end face of fan housing and sets up bearing cap 8, encoder 3 is connected to ring flange 6 terminal surface through annular linking bridge 7 on, encoder axle 11 is connected to motor spindle 4 through connecting axle 10 on, and encoder axle 11, connecting axle 10 and motor spindle 4 are concentric, and three's axle center is located linking bridge 7's central line.

Furthermore, the bearing cover 8 is connected to the end face of the flange 6 along the axial direction through a plurality of bearing cover screws 12, a spigot is arranged on one side of the bearing cover 8 close to the bearing 9, the spigot is in contact with the inner diameter of the flange 6, and a corrugated spring piece 18 is arranged between the bearing end face and the bearing cover. The bearing cap screw 12 is an M6-15 screw.

Further, one end of the connecting shaft 10 is axially connected to the end face of the motor spindle 4 through a plurality of connecting shaft screws 13, and the other end of the connecting shaft 10 is connected to the encoder shaft 11 through a coupler 15. The connecting shaft screw 13 is an M5-15 screw.

Further, the flange 6 is axially connected to the wind shield 2 by a plurality of flange bolts 16. The flange bolts 16 are M6-20 hexagon bolts.

Furthermore, the connecting support 7 is connected and positioned through a plurality of axially arranged connecting support bolts 16, the connecting support bolts 16 penetrate through the flange plate 6 to be connected to the fan cover 2, an annular positioning surface is arranged on the end face, connected with the connecting support 7, of the flange plate 6, and an annular groove matched with the annular positioning surface is arranged in the inner diameter of the connecting support 7. The connecting bracket bolt 16 is an M6-20 hexagon bolt.

Further, the encoder end face is axially connected to the connecting bracket 7 by a plurality of encoder bolts 17. The encoder bolt 17 is an M5-15 hexagon bolt.

Further, the encoder is an integrated overspeed switch encoder.

Further, the fan 1 is arranged on the outer side of the rear end cover of the motor.

Based on above-mentioned technical scheme, integral type overspeed switch encoder 3 installs in fan housing 2 outsidely, need not dismantle the fan housing during the maintenance, also prevents fan 1 damage encoder 3 in the fan housing, installs in outside back, installs an encoder cover 5 again and protects the encoder, prevents that the encoder from suffering external striking and damaging. The structure has low production cost, and the self-cooling type is only half of the cooling cost of the fan.

The above list is only the preferred embodiment of the present invention. Obviously, the present invention is not limited to the above embodiments, and many modifications are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.

Claims

1. The utility model provides a from fan-cooled motor structure which characterized in that: comprises a fan, a fan cover and an encoder component; the fan suit is at the non-drive end of motor spindle, and the fan outside is provided with the fan housing, the encoder subassembly sets up outside the fan housing, and the encoder subassembly is connected to motor spindle through the connecting axle on, the encoder subassembly sets up the encoder cover outward.

2. The self-cooling electric machine structure of claim 1, wherein: the motor main shaft extends out of the fan cover.

3. The self-cooling fan-cooled motor structure according to claim 2, wherein: the encoder assembly comprises a flange plate, a connecting support and an encoder, wherein the flange plate is sleeved on the motor main shaft through a bearing, a bearing end face, far away from the fan cover, of the bearing is provided with a bearing cover, the encoder is connected to the end face of the flange plate through the annular connecting support, the encoder shaft is connected to the motor main shaft through a connecting shaft, the encoder shaft, the connecting shaft and the motor main shaft are concentric, and the axes of the encoder shaft, the connecting shaft and the motor main shaft are located on the central line of.

4. The self-cooling fan-cooled motor structure according to claim 3, wherein: the bearing cover is connected to the end face of the flange plate along the axial direction through a plurality of bearing cover screws, a spigot is arranged on one side, close to the bearing, of the bearing cover, the spigot is in contact with the inner diameter of the flange plate, and a corrugated spring piece is arranged between the end face of the bearing and the bearing cover.

5. The self-cooling fan-cooled motor structure according to claim 3, wherein: one end of the connecting shaft is axially connected to the end face of the motor spindle through a plurality of connecting shaft screws, and the other end of the connecting shaft is connected with the encoder shaft through a coupler.

6. The self-cooling fan-cooled motor structure according to claim 3, wherein: the flange plate is axially connected to the wind shield through a plurality of flange plate bolts.

7. The self-cooling fan-cooled motor structure according to claim 3, wherein: the connecting support is connected and positioned through a plurality of axially arranged connecting support bolts, the connecting support bolts penetrate through the flange plate to be connected to the wind shield, an annular positioning surface is arranged on the end face, connected with the connecting support, of the flange plate, and the inner diameter of the connecting support is provided with an annular groove matched with the annular positioning surface.

8. The self-cooling fan-cooled motor structure according to claim 3, wherein: the end face of the encoder is axially connected to the connecting support through a plurality of encoder bolts.

9. The self-cooling electric machine structure of claim 1, wherein: the encoder is an integrated overspeed switch encoder.

10. The self-cooling electric machine structure of claim 1, wherein: the fan is arranged on the outer side of the rear end cover of the motor.