CN210075042U - High-voltage asynchronous motor - Google Patents
High-voltage asynchronous motor Download PDFInfo
- Publication number
- CN210075042U CN210075042U CN201920596909.6U CN201920596909U CN210075042U CN 210075042 U CN210075042 U CN 210075042U CN 201920596909 U CN201920596909 U CN 201920596909U CN 210075042 U CN210075042 U CN 210075042U
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- shell
- rotor
- motor
- carbon brush
- earthing device
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Abstract
The utility model discloses a high-pressure asynchronous motor, including motor casing, rotor, the rotor passes through the bearing and installs in the motor casing, and motor casing one side is equipped with earthing device, earthing device passes through the screw and installs on the motor casing, is equipped with the carbon brush in the earthing device, is equipped with V type recess on the rotor, carbon brush one end and V type groove connection, and the other end is connected with the earth connection. The utility model discloses a set up earthing device at the rotor, lead in the underground with the electric charge that has on the rotor, prevent the electric charge accumulation on the rotor, protect the safety of motor, be equipped with touch switch on the earthing device, will certain degree back when the carbon brush wearing and tearing, touch switch can be pressed to the arch, the alarm of starting out reminds maintenance personal to change the carbon brush to guarantee the continuous operation of motor.
Description
Technical Field
The utility model belongs to the electrical equipment field especially relates to a high-pressure asynchronous motor.
Background
The rotor of the large AC asynchronous motor is connected with a machine shell by adopting a bearing, when the rotor rotates at a high speed, the rotor is insulated with the machine shell by an oil film, because the resistance exists between the rotor and the ground, once the rotor is electrified, the voltage to ground is established, when the voltage is increased to a certain value, the rotor can be punctured in a region with small resistance, electric spark discharge is generated, the discharge action can generate metal particles which can be melted in the discharge region, an extremely tiny electric erosion pit is formed on the metal surface, the accumulation of the pit can lead the surface to be rough and lose luster, if the voltage occurs on a bearing bush, pure mechanical abrasion can be generated, the melted metal particles enter a lubricating system, the lubricating agent is polluted, the lubricating performance of the whole lubricating system is deteriorated, the lubricating agent containing a large amount of metal particles can reduce the resistance of the oil film, the speed of electric spark erosion is accelerated, and local high temperature is generated, the problems of oil film damage, metal burnout, increased abrasion and serious friction damage are finally caused, under long-term serious discharge operation, the abrasion of a bearing small cover and a bearing box is very serious, the operation noise of the motor is large, the vibration is large, and the bearing burnout is finally caused, so that a high-voltage asynchronous motor is needed to solve the problem of rotor electrification
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a high-pressure asynchronous motor can solve the problem that prior art rotor does not have the earth connection.
The utility model discloses a following technical scheme can realize.
The utility model provides a pair of high-pressure asynchronous motor, including motor casing, rotor, the rotor passes through the bearing and installs in the motor casing, and motor casing one side is equipped with earthing device, earthing device passes through the screw and installs on the motor casing, is equipped with the carbon brush in the earthing device, is equipped with V type recess on the rotor, carbon brush one end and V type groove connection, and the other end is connected with the earth connection.
The grounding device comprises a shell, a sliding block and a fixing plate, wherein the shell is installed on a motor shell through screws, the sliding block is installed in the shell and is in sliding connection with the shell, the fixing plate is installed on one side of the shell and is connected with the sliding block through a spring, and one side of the sliding block is connected with a carbon brush.
The upper portion of the shell is provided with a sliding groove, the upper portion of the sliding block is provided with a protrusion, and the protrusion is connected with the sliding groove in a sliding mode.
And the tail end of the sliding groove is provided with a touch switch.
A clamping groove is formed in one side of the shell, the lower portion of the fixing plate is connected with the clamping groove, and the upper portion of the fixing plate is connected with the shell through a screw.
The lower portion of the shell is provided with an opening, and one end of the grounding wire enters the inner cavity of the shell from the opening and is connected with the carbon brush.
The beneficial effects of the utility model reside in that: through set up earthing device at the rotor, the electric charge that has on with the rotor is leading-in to the underground, prevents the electric charge accumulation on the rotor, protects the safety of motor, is equipped with touch switch on the earthing device, and after the carbon brush wearing and tearing will the certain degree, the protruding touch switch that can press of meeting, the alarm that starts reminds maintenance personal to change the carbon brush to guarantee the continuous operation of motor.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the grounding device coupled to the rotor;
FIG. 3 is a schematic diagram of the internal structure of the grounding device;
in the figure: 1-motor shell, 2-rotor, 3-grounding device, 4-carbon brush, 5-V-shaped groove, 6-grounding wire, 7-shell, 8-sliding block, 9-fixing plate, 10-spring, 11-sliding groove, 12-protrusion, 13-touch switch and 14-clamping groove.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1 to 3, a high-voltage asynchronous motor includes a motor casing 1 and a rotor 2, the rotor 2 is installed in the motor casing 1 through a bearing, a grounding device 3 is arranged on one side of the motor casing 1, the grounding device 3 is installed on the motor casing 1 through a screw, a carbon brush 4 is arranged in the grounding device 3, a V-shaped groove 5 is arranged on the rotor 2, one end of the carbon brush 4 is connected with the V-shaped groove 5, and the other end is connected with a grounding wire 6.
When the motor works, the carbon brushes 4 are in contact with the rotor 2, charges accumulated on the rotor 2 are conducted underground, the rotor 2 is prevented from generating voltage to earth, the V-shaped grooves 5 can prevent the carbon brushes 4 from being displaced when in contact with the rotor, meanwhile, the contact area of the carbon brushes 4 and the rotor 2 is increased, and the conductivity is improved.
The grounding device 3 comprises a shell 7, a sliding block 8 and a fixing plate 9, the shell 7 is installed on the motor shell 1 through screws, the sliding block 8 is installed in the shell 7 and is connected with the shell 7 in a sliding mode, the fixing plate 9 is installed on one side of the shell 7 and is connected with the sliding block 8 through a spring 10, one side of the sliding block 8 is connected with the carbon brush 4, the carbon brush 4 is under the pushing of the spring 10, the end portion of the carbon brush is in contact with the V-shaped groove 5, electric charges on the rotor 2 are led into the ground, the carbon brush 4 can be abraded due to sliding friction between the carbon brush 4 and the V-shaped groove 5, and after the carbon brush 4 is abraded, the spring 10 can continuously push the carbon brush 4 to be attached to the V.
The upper portion of the shell 7 is provided with a sliding groove 11, the upper portion of the sliding block 8 is provided with a protrusion 12, the protrusion 12 is in sliding connection with the sliding groove 11, the sliding block 8 moves towards one side of the touch switch 13 after the carbon brush 4 is worn, and when the carbon brush 4 is worn to a certain degree, the protrusion 12 is in contact with the touch switch 13.
The tail end of the sliding groove 11 is provided with a touch switch 13, the touch switch 13 is triggered through the protrusion 12, the alarm is communicated, and maintenance personnel are reminded to replace the carbon brush 4 through the alarm so as to guarantee normal operation of the equipment.
The carbon brush replacing device is characterized in that a clamping groove 14 is formed in one side of the shell 7, the lower portion of the fixing plate 9 is connected with the clamping groove 14, the upper portion of the fixing plate 9 is connected with the shell 7 through screws, when the carbon brush needs to be replaced, the fixing plate 9 can be quickly detached, and after the old carbon brush 4 is removed, a new carbon brush 4 is placed.
The lower part of the shell 7 is provided with an opening, one end of the grounding wire 6 enters the inner cavity of the shell 7 from the opening and is connected with the carbon brush 4, and charges on the rotor are led out through the grounding wire to prevent the rotor from being electrified.
Claims (6)
1. A high voltage asynchronous motor characterized by: the motor comprises a motor shell (1) and a rotor (2), wherein the rotor (2) is arranged in the motor shell (1) through a bearing, and one side of the motor shell (1) is provided with a grounding device (3); the motor is characterized in that the grounding device (3) is installed on the motor shell (1) through screws, a carbon brush (4) is arranged in the grounding device (3), a V-shaped groove (5) is formed in the rotor (2), one end of the carbon brush (4) is connected with the V-shaped groove (5), and the other end of the carbon brush is connected with the grounding wire (6).
2. A high-voltage asynchronous motor, according to claim 1, characterized in that: the grounding device (3) comprises a shell (7), a sliding block (8) and a fixing plate (9), the shell (7) is installed on the motor shell (1) through screws, the sliding block (8) is installed in the shell (7) and is in sliding connection with the shell (7), the fixing plate (9) is installed on one side of the shell (7) and is connected with the sliding block (8) through a spring (10), and one side of the sliding block (8) is connected with the carbon brush (4).
3. A high-voltage asynchronous motor, according to claim 2, characterized in that: the upper portion of the shell (7) is provided with a sliding groove (11), the upper portion of the sliding block (8) is provided with a protrusion (12), and the protrusion (12) is connected with the sliding groove (11) in a sliding mode.
4. A high-voltage asynchronous motor, according to claim 3, characterized in that: the tail end of the sliding groove (11) is provided with a touch switch (13).
5. A high-voltage asynchronous motor, according to claim 2, characterized in that: a clamping groove (14) is formed in one side of the shell (7), the lower portion of the fixing plate (9) is connected with the clamping groove (14), and the upper portion of the fixing plate (9) is connected with the shell (7) through a screw.
6. A high-voltage asynchronous motor, according to claim 2, characterized in that: the lower part of the shell (7) is provided with an opening, and one end of the grounding wire (6) enters the inner cavity of the shell (7) from the opening and is connected with the carbon brush (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920596909.6U CN210075042U (en) | 2019-04-28 | 2019-04-28 | High-voltage asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920596909.6U CN210075042U (en) | 2019-04-28 | 2019-04-28 | High-voltage asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210075042U true CN210075042U (en) | 2020-02-14 |
Family
ID=69449312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920596909.6U Active CN210075042U (en) | 2019-04-28 | 2019-04-28 | High-voltage asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210075042U (en) |
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2019
- 2019-04-28 CN CN201920596909.6U patent/CN210075042U/en active Active
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