CN215772757U - Explosion-proof servo motor - Google Patents
Explosion-proof servo motor Download PDFInfo
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- CN215772757U CN215772757U CN202121970973.XU CN202121970973U CN215772757U CN 215772757 U CN215772757 U CN 215772757U CN 202121970973 U CN202121970973 U CN 202121970973U CN 215772757 U CN215772757 U CN 215772757U
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- end cover
- stator
- epoxy resin
- explosion
- motor
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Abstract
The utility model relates to an explosion-proof servo motor which comprises a cylindrical motor shell, a front end cover, a rear end cover, a stator and a rotor, wherein the stator is arranged in the motor shell and embedded in an annular epoxy resin block, and a leading-out wire of the stator penetrates through the epoxy resin block; the front end cover is installed at the front end of the motor shell, the rear end cover is installed at the rear end of the motor shell, two ends of the rotor are installed in the front end cover and the rear end cover respectively, and the rotor is coaxial with the stator and the epoxy resin block. The beneficial effects are that: the stator of the servo motor is embedded in the annular epoxy resin block in an embedding mode, the stator is isolated from the outside air by the epoxy resin block, spark spots are avoided, and the problem of stator explosion prevention is solved.
Description
Technical Field
The utility model relates to the technical field of motors, in particular to an explosion-proof servo motor.
Background
The servo motor is still composed of a motor shell, a stator entering the shell, a rotor with magnets adhered to the outer side, a front end cover, a rear end cover and the like, and due to the particularity of the performance and the application of the servo motor, the servo motor does not have the requirement of explosion prevention in the original use environment process, so that the explosion prevention problem is not paid much attention to in the original production process of the servo motor.
Because the servo motor has a simple structure, compared with a common motor, the rotor of the servo motor is completely realized by using magnets, and a squirrel cage structure of copper coils, copper bars or aluminum bars is avoided, so that no spark is generated, only a stator part is needed, but after the stator of the common servo motor is placed into a shell, the copper wires of a stator winding are fixed only by adopting a method of soaking the stator in paint or coating resin on the surfaces of the copper wires, so that the copper wires do not vibrate when the motor is electrified to generate a magnetic field, and the copper coils can be protected under the condition of stress of the motor. Although the winding copper wire can be fixed by the method, most of the surface of the copper wire of the winding is clearly visible and cannot pass a gas explosion-proof test, so that the servo motor cannot be used in an environment with explosion-proof requirements.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the problems in the prior art and provides an explosion-proof servo motor.
In order to achieve the technical purpose and achieve the technical effect, the utility model is realized by the following technical scheme:
an explosion-proof servo motor comprises a cylindrical motor shell, a front end cover, a rear end cover, a stator and a rotor, wherein the stator is installed in the motor shell, the stator is embedded in an annular epoxy resin block, and a leading-out wire of the stator penetrates through the epoxy resin block; the front end cover is installed at the front end of the motor shell, the rear end cover is installed at the rear end of the motor shell, two ends of the rotor are installed in the front end cover and the rear end cover respectively, and the rotor is coaxial with the stator and the epoxy resin block.
Further, the axial length of the epoxy resin block is equal to the spacing distance between the front end cover and the rear end cover.
Furthermore, the outer side surface of the epoxy resin block is bonded with the inner side surface of the motor shell.
Further, the distance between the outer surface of the stator and the outer surface of the epoxy resin block is larger than 1 mm.
Furthermore, a front waterproof bearing is installed at the center of the front end cover, a rear waterproof bearing is installed at the center of the rear end cover, the shaft head of the rotor is installed in an inner ring of the front waterproof bearing in an interference mode, and the shaft tail of the rotor is installed in an inner ring of the rear waterproof bearing in an interference mode.
Further, a junction box is installed on one side of the motor shell, a first sealing rubber gasket is clamped between the junction box and the motor shell, wire holes communicated with the inner cavity of the motor shell and the junction box are formed in the motor shell, and outgoing wires of the stator penetrate through the wire holes to enter the junction box.
Furthermore, a second sealing rubber gasket is respectively arranged between the front end of the motor shell and the front end cover and between the rear end of the motor shell and the rear end cover.
The utility model has the beneficial effects that: the stator of the servo motor is embedded in the annular epoxy resin block in an embedding mode, the stator is isolated from the outside air by the epoxy resin block, spark spots are avoided, and the problem of stator explosion prevention is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model without limiting the utility model. In the drawings:
fig. 1 is a schematic structural diagram of an explosion-proof servo motor in the embodiment of the utility model.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1, an explosion-proof servo motor comprises a cylindrical motor casing 1, a front end cover 2, a rear end cover 3, a stator 5 and a rotor 4, wherein the stator 5 is installed in the motor casing 1, the stator 5 is embedded in a circular epoxy resin block 7, an outgoing line 8 of the stator 5 penetrates through the epoxy resin block 7, the axial length of the epoxy resin block 7 is equal to the spacing distance between the front end cover 2 and the rear end cover 3, and the outer side face of the epoxy resin block 7 is bonded with the inner side face of the motor casing 1, so that the stability of the stator is improved. The front end housing 2 is installed at the front end of the motor casing 1, the rear end housing 3 is installed at the rear end of the motor casing 1, and two ends of the rotor 4 are respectively installed in the front end housing 2 and the rear end housing 3. Specifically, a front waterproof bearing 10 is installed at the center of the front end cover 2, a rear waterproof bearing 11 is installed at the center of the rear end cover 3, the head of the shaft 6 of the rotor 4 is installed in an inner ring of the front waterproof bearing 10 in an interference mode, the tail of the shaft 6 of the rotor 4 is installed in an inner ring of the rear waterproof bearing 11 in an interference mode, and the rotor 4 is coaxial with the stator 5 and the epoxy resin block 7.
In addition, the spacing distance between the outer surface of the stator 5 and the outer surface of the epoxy resin block 7 is larger than 1mm, so that the stator except the lead-out wire 8 can be completely embedded in the epoxy resin block 7, and the explosion-proof problem of the stator is better solved.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.
Claims (7)
1. An explosion-proof servo motor which characterized in that: the stator is arranged in the motor shell, the stator is embedded in an annular epoxy resin block, and a lead-out wire of the stator penetrates through the epoxy resin block; the front end cover is installed at the front end of the motor shell, the rear end cover is installed at the rear end of the motor shell, two ends of the rotor are installed in the front end cover and the rear end cover respectively, and the rotor is coaxial with the stator and the epoxy resin block.
2. An explosion-proof servo motor as defined in claim 1, wherein: the axial length of the epoxy resin block is equal to the spacing distance between the front end cover and the rear end cover.
3. An explosion-proof servo motor as defined in claim 1, wherein: and the outer side surface of the epoxy resin block is bonded with the inner side surface of the motor shell.
4. An explosion-proof servo motor as defined in claim 1, wherein: the spacing distance between the outer surface of the stator and the outer surface of the epoxy resin block is larger than 1 mm.
5. An explosion-proof servo motor as defined in claim 1, wherein: the front waterproof bearing is installed at the center of the front end cover, the rear waterproof bearing is installed at the center of the rear end cover, the shaft head of the rotor is installed in the inner ring of the front waterproof bearing in an interference mode, and the shaft tail of the rotor is installed in the inner ring of the rear waterproof bearing in an interference mode.
6. An explosion-proof servo motor as defined in claim 1, wherein: the terminal box is installed to one side of motor casing, and accompanies first sealed cushion between terminal box and the motor casing, be equipped with the line hole of intercommunication motor casing inner chamber and terminal box on the motor casing, the lead-out wire of stator passes in the line hole gets into the terminal box.
7. An explosion-proof servo motor as defined in claim 1, wherein: and a second sealing rubber gasket is respectively arranged between the front end of the motor shell and the front end cover and between the rear end of the motor shell and the rear end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121970973.XU CN215772757U (en) | 2021-08-20 | 2021-08-20 | Explosion-proof servo motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121970973.XU CN215772757U (en) | 2021-08-20 | 2021-08-20 | Explosion-proof servo motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215772757U true CN215772757U (en) | 2022-02-08 |
Family
ID=80077136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121970973.XU Active CN215772757U (en) | 2021-08-20 | 2021-08-20 | Explosion-proof servo motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215772757U (en) |
-
2021
- 2021-08-20 CN CN202121970973.XU patent/CN215772757U/en active Active
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