WO2021035936A1

WO2021035936A1 - Electric heating and rotating immersion paint device for motor winding and immersion paint process thereof

Info

Publication number: WO2021035936A1
Application number: PCT/CN2019/114305
Authority: WO
Inventors: 徐伟红; 韩林; 夏宇; 周成; 徐雄鹰
Original assignee: 苏州巨峰电气绝缘系统股份有限公司
Priority date: 2019-08-29
Filing date: 2019-10-30
Publication date: 2021-03-04
Also published as: CN110690799A

Abstract

Provided are an electric heating and rotating immersion paint device and an immersion paint process thereof, wherein the immersion paint device comprises: a support assembly including a frame (11), a bearing seat (2) fixed on the frame (11), and a hollow shaft (5) rotatably arranged on the bearing seat (2), wherein the end of the hollow shaft (5) is fixed with a workpiece ready for trickle immersing; the rotating assembly comprising a driving motor (12) and a transmission mechanism (6), wherein the driving motor (12) drives the hollow shaft (5) to rotate through the transmission mechanism (6); and the heating assembly comprising a power supply, a cable (4), an electric brush sliding ring mechanism (3) and a temperature sensor for measuring the temperature of the workpiece ready for trickle immersing. The immersion paint device and the immersion paint process do not need human and material resources to clean the surface of an iron core before motor assembly, can also provide high controllability and utilization rate during trickling the insulating paint, and have the advantages of no loss, energy conservation, environmental protection and the like, the winding is uniformly heated in the whole process of pre-baking, trickling paint, curing and drying the workpiece, and during trickle immersing the winding is beneficial to permeation of the insulating paint under the action of electromagnetical oscillation, thereby ensuring the immersion quality of the winding.

Description

Electric heating rotating paint dipping equipment for motor winding and paint dipping process

This application claims the priority of the invention patent application with the application number 201910807422.2 filed with the State Intellectual Property Office of China on August 29, 2019. The content of the priority text is expressly incorporated into this application by reference.

Technical field

The application belongs to the technical field of insulation dipping treatment for stator and rotor windings of a motor, and in particular relates to a motor winding energized heating rotary dipping equipment and a dipping process.

Background technique

The insulation treatment of the stator or rotor of a motor with windings is a key technical process in the manufacture of the motor. Common insulation processes include ordinary immersion process, rolling immersion process, vacuum pressure impregnation process, etc. The common disadvantage of these processes is that during the insulation treatment process, the iron core will be immersed in the insulating varnish, and its surface will be impregnated with a lot of unnecessary Before the motor is assembled, it will spend a lot of manpower and material resources to clean the insulating varnish on the inner and outer surfaces of the iron core. Otherwise, it will affect the assembly quality of the motor and the heat dissipation performance of the motor (influence the conduction and heat dissipation of the winding through the casing wall).

In order to overcome the above shortcomings, many motor manufacturers usually use ordinary drip immersion technology (using ovens and drying tunnels to heat the windings) to insulate the stator with windings. Although the above shortcomings are overcome, there is insulation. The paint has poor permeability during the drip immersion process, especially the windings in the iron core grooves are not easy to soak, or the amount of paint hanging is insufficient, which is commonly referred to as pinhole pores, which affects the insulation performance of the motor windings.

For example, the patent CN 108282061A discloses a heating vacuum and vacuum pressure dipping equipment in the winding, including a vacuum pump, a buffer tank, a paint storage tank, a paint dipping tank, an inert gas storage tank, a high-power DC power supply with temperature control, and a heating furnace. Use vacuum dipping equipment, vacuum pressure dipping equipment and continuous vacuum dipping equipment. In the dipping process, the heating technology in the winding is adopted, and a dedicated DC power supply is used to provide high-current electric DC to the windings. After the power is turned on, the temperature of the windings will increase. Curing. Although the above equipment can also increase the amount of hanging paint, the equipment is complicated. The manufacturing cost is very high, and it is suitable for medium and large motors, and more importantly, the surface of the stator core will be immersed in the insulating paint, and the unnecessary paint will be glued.

Summary of the invention

The technical problem to be solved by the present invention is: in order to solve the shortcomings of the winding stator dipping insulation equipment and technology in the prior art, it provides a kind of good dipping effect, large amount of lacquer, no air holes, and the inner and outer circular surface of the iron core Clean, no insulating paint, can improve the insulation performance of the motor, directly use the winding energized heating, rotating drip immersion equipment and its method.

The technical solutions adopted by the present invention to solve its technical problems are:

A rotary dipping equipment for energizing and heating motor windings includes:

The supporting assembly includes a frame, a bearing seat fixed on the frame, and a hollow shaft rotatably arranged on the bearing seat, and the end of the hollow shaft is fixed with a workpiece to be dripped;

The rotating assembly includes a drive motor and a transmission mechanism, and the drive motor drives the hollow shaft to rotate through the transmission mechanism;

The heating assembly includes a power supply, a cable, a brush slip ring mechanism, and a temperature sensor for measuring the temperature of the workpiece to be dripped, and the brush slip ring mechanism is sleeved on the hollow shaft;

The dripping assembly includes a peristaltic pump, a paint storage bucket, and a dropper. The peristaltic pump extracts paint from the paint storage bucket and drips paint on the workpiece to be dripped through the dropper;

The control component includes a control cabinet, which is electrically connected to the drive motor, power supply, temperature sensor, and peristaltic pump, and controls the start and stop and speed of the drive motor, and controls the power supply to open and close according to the temperature sensor signal. Control the start and stop of the peristaltic pump;

Wherein, the workpiece to be dripped includes a winding stator, the moving and static ends of the brush slip ring mechanism respectively lead out the cable to connect the winding of the winding stator and the power source, and the cable passes through the hollow shaft The hollow part connects the winding and the brush slip ring mechanism.

In one of the embodiments, the supporting assembly includes a pair of the bearing seats arranged at intervals, and the brush slip ring mechanism is arranged on the hollow shaft and located between the pair of bearing seats.

In one of the embodiments, the transmission mechanism includes a speed reducer, a pair of sprockets and a chain connecting the pair of sprockets, the sprockets are respectively arranged on the output end of the speed reducer and the hollow shaft, The driving motor is a speed-regulating motor, and the output end of the speed-regulating motor is connected to the input end of the reducer.

In one of the embodiments, a mechanical clamping mechanism is further included, and the mechanical clamping mechanism is fixed at the end of the hollow shaft for clamping the workpiece to be dripped.

In one of the embodiments, the mechanical clamping mechanism is further connected with a power source, and the power source is an air cylinder or a hydraulic cylinder.

In one of the embodiments, the power source is an AC power source.

In one of the embodiments, the hollow shaft is provided with an opening for the cable to pass in and out.

In one of the embodiments, the brush slip ring mechanism includes a carbon brush as a static end and a slip ring as a moving end, the slip ring is fixed to the hollow shaft, and the carbon brush is fixed to the frame, The rotating hollow shaft passes through the slip ring and drives the slip ring to rotate, and the carbon brush slides on the slip ring.

In one of the embodiments, the end of the hollow shaft is further provided with a terminal, the cable passes through the hollow part of the hollow shaft and is connected to the terminal, and the lead wire of the winding stator is connected to the terminal The column can be detachably connected.

A dipping process for a motor winding energized heating rotary dipping equipment, the motor winding energized heating rotary dipping equipment includes:

Wherein, the workpiece to be dripped includes a winding stator, the moving and static ends of the brush slip ring mechanism respectively lead out the cable to connect the winding of the winding stator and the power source, and the cable passes through the hollow shaft The hollow part connects the winding and the brush slip ring mechanism;

The drip immersion process includes the following steps:

Step 10: Fix the workpiece to be dripped on the hollow shaft, and connect the winding to the power source;

Step 20: The control cabinet is set with a set temperature value, the power is turned on through the control cabinet, the winding stator is energized and heated, and the temperature sensor measures the winding stator temperature and feeds it back to the control cabinet ；

Step 30: When the winding stator temperature reaches the set temperature value, the control cabinet controls the power supply current to maintain the winding stator temperature unchanged;

Step 40, start the peristaltic pump and the drive motor, the control cabinet adjusts the rotation speed of the drive motor according to the outer diameter of the winding, and adjusts the paint dripping flow rate through the peristaltic pump;

Step 50: Turn off the peristaltic pump after the paint dripping is finished, turn off the drive motor after curing and drying the workpiece to be dripped, and unload the workpiece to be dripped from the hollow shaft.

The beneficial effect of the present invention is that the technical solution of the present invention can ensure that the workpiece (the stator with windings or the rotor with windings) rotates in the entire insulation treatment process (preheating, dripping, curing, and drying), and its advantages for:

(1) Compared with the insulation treatment process of immersion, roll dipping, and vacuum dipping, the surface of the iron core will not be impregnated with insulating varnish after the insulating treatment, and there is no need to use manpower and material resources for cleaning before the motor is assembled. In addition, when the insulating varnish is dropped High controllability and utilization rate, no loss, no waste, clean, energy-saving, environmental protection and other advantages, the workpiece can ensure that the winding is heated evenly during the entire process of pre-baking, dripping, curing, and drying, which is a beneficial guarantee The impregnation quality of the winding;

(2) Compared with the ordinary dripping insulation treatment process (using oven and drying tunnel to heat the workpiece), since the alternating current is passed through the winding of the dripping link in this application, an electromagnetic field will be generated in the iron core, forming an electromagnetic oscillation, which is beneficial to The capillary penetration of the insulating paint (glue) is particularly beneficial to the penetration of the insulating paint into the iron core slot, increasing the amount of paint hanging on the windings, thereby improving the insulation performance of the motor windings.

Therefore, this invention is particularly suitable for motors that require high winding insulation performance and high internal cleanliness of the motor, such as servo motors, automobile motors, oil-immersed motors, freon motors, and so on.

Description of the drawings

The technical solution of the present application will be further described below with reference to the drawings and embodiments.

FIG. 1 is a schematic diagram of the structure of a rotary dipping equipment for energized heating of motor windings according to an embodiment of the application;

among them,

1. Control cabinet

2. Bearing seat

3. Brush slip ring mechanism

4. Cable

5. Hollow shaft

6. Transmission mechanism

7. Peristaltic pump

8. Dropper

9. Winding stator

10. Mechanical clamping mechanism

11. Rack

12. Drive motor

13. Paint storage bucket

14. Terminals.

detailed description

It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other if there is no conflict.

In the description of this application, it should be understood that the terms "center", "vertical", "horizontal", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and The description is simplified, rather than indicating or implying that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the protection scope of the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of these features. In the description of the invention, unless otherwise specified, the meaning of "multiple" means two or more.

In the description of this application, it should be noted that the terms "installation", "connection", and "connection" should be understood in a broad sense, unless otherwise clearly specified and limited. For example, it can be a fixed connection or a detachable connection. Connected or integrally connected; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in this application can be understood through specific circumstances.

The technical solutions of the present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

A rotary dipping equipment for energizing and heating motor windings includes:

The supporting assembly includes a frame 11, a bearing seat 2 fixed on the frame 11, and a hollow shaft 5 rotatably arranged on the bearing seat 2, and the end of the hollow shaft 5 is fixed with the workpiece to be dripped;

The rotating assembly includes a driving motor 12 and a transmission mechanism 6. The driving motor 12 drives the hollow shaft 5 to rotate through the transmission mechanism 6;

The heating assembly includes a power supply, a cable 4, a brush slip ring mechanism 3 and a temperature sensor for measuring the temperature of the workpiece to be dripped. The brush slip ring mechanism 3 is sleeved on the hollow shaft 5;

The dripping component includes a peristaltic pump 7, a paint storage bucket 13, and a dropper 8. The peristaltic pump 7 extracts paint (or insulating glue) from the paint storage bucket 13 and drips paint on the workpiece to be dripped through the dropper 8;

Control components, including control cabinet 1, which is electrically connected to the drive motor 12, power supply, temperature sensor and peristaltic pump 7, and controls the start and stop and speed of the drive motor 12, controls the power on and off according to the received temperature sensor signal, and controls the peristaltic pump 7 start and stop;

Among them, the workpiece to be dripped (or simply the workpiece) includes a winding stator. The moving and static ends of the brush slip ring mechanism 3 respectively lead out a cable 4 to connect the winding of the winding stator 9 and the power supply, and the cable 4 passes through the hollow part of the hollow shaft 5 to connect to the winding. And brush slip ring mechanism 3. It should be noted that the above-mentioned winding stator can be replaced with a winding rotor for drip immersion, and the drip immersion of the winding rotor also belongs to the technical solution of the present application.

Control cabinet 1 is to assemble switchgear, measuring instruments, protective appliances and auxiliary equipment in a closed or semi-enclosed metal cabinet or on the screen according to the electrical wiring requirements. Its layout should meet the requirements of the normal operation of the power system, which is convenient for maintenance and does not endanger Safety of people and surrounding equipment. During normal operation, the circuit can be turned on or off by means of a manual or automatic switch. In this embodiment, process parameters such as the temperature of the workpiece, the rotation speed, the flow rate of dripping paint, and the time can be controlled. The control cabinet 1 in this embodiment includes, but is not limited to, controllable elements for adjusting the size of the power supply current, controllable elements for adjusting the speed of the drive motor 12, controllable elements for adjusting the opening and closing of the peristaltic pump 7 and the flow rate, and memory And processors, etc. The aforementioned power source is direct current or alternating current, and can be placed in the control cabinet 1 or led out through the control cabinet 1.

The range of motors used for processed products (workpieces to be drip-immersed) includes all types of motors, such as single and three-phase motors, AC and DC motors, medium, small, fractional horsepower, micro motors, and derived automotive motors and servo motors , Torque motors, explosion-proof, metallurgy, hoisting, etc. all special and special motors. That is, processed products can include winding stators and winding rotors of the above products.

In order to stably support the rotating hollow shaft 5, in one of the embodiments, the support assembly includes a pair of bearing seats 2 spaced apart, and the brush slip ring mechanism 3 is arranged on the hollow shaft 5 and located between the pair of bearing seats 2. The workpiece to be dripped is located at the outer distal end of the pair of bearing seats 2, which is convenient for dripping paint and disassembling the workpiece.

In one of the embodiments, the transmission mechanism 6 includes a reducer, a pair of sprockets, and a chain connecting the pair of sprockets. The sprockets are respectively arranged on the output end of the reducer and the hollow shaft 5, and the drive motor 12 is a speed-regulating motor. The output terminal of the speed regulating motor is connected to the input terminal of the reducer. In different embodiments, the transmission mechanism 6 may include a reduction box, which is used as a reduction transmission between the drive motor 12 and the hollow shaft 5. In different embodiments, the transmission mechanism 6 may adopt belt transmission, chain transmission, gear transmission, or directly driven by various speed-regulating motors, such as servo motors, variable frequency speed-regulating motors, electromagnetic speed-regulating motors, and also using belts. Speed-regulating motors and ordinary motors of various reducers.

In order to clamp and fix the workpiece, in one of the embodiments, a mechanical clamping mechanism 10 is further included. The mechanical clamping mechanism 10 is fixed at the end of the hollow shaft for clamping the workpiece to be dripped. In one of the embodiments, the mechanical clamping mechanism 10 may be a mechanical clamping arm, and the mechanical clamping arm may be a three-jaw, four-bar mechanism, inclined plane, or the like.

In order to facilitate the removal and fixation of the workpiece, in one of the embodiments, the mechanical clamping mechanism 10 is also connected with a power source, which is a cylinder or hydraulic cylinder, which is connected to and drives the mechanical clamping mechanism 10 to clamp or loosen Open the workpiece.

In one of the embodiments, the power source is an AC power source. After the AC power is turned on, an electromagnetic oscillation effect will be generated in the rotating winding stator. When the winding is subjected to electromagnetic oscillation during dripping, the permeability in the iron core slot is better.

In one of the embodiments, the hollow shaft 5 is provided with an opening for the cable 4 to pass in and out. The position of the hole on the hollow shaft 5, the number and size of the hole are not limited.

In order to maintain current flow when the hollow shaft 5 rotates, in one of the embodiments, the brush slip ring mechanism 3 includes a carbon brush as a static end and a slip ring as a moving end. The slip ring is fixed to the hollow shaft 5, and the carbon brush is fixed on the machine. On the frame 11, the rotating hollow shaft 5 passes through the slip ring and drives the slip ring to rotate, and the carbon brush slides on the slip ring to connect the current.

In order to facilitate the loading and unloading of the workpiece, in one of the embodiments, the end of the hollow shaft 5 is also provided with a terminal 14, the cable 4 passes through the hollow part of the hollow shaft 5 and is connected to the terminal 14, the lead wire of the winding stator 9 and the terminal 14 detachable connection.

The working principle of the present invention includes:

First, position and clamp the white blank of the workpiece (or the workpiece to be dripped) with winding stator and rotor with the clamping mechanism; then connect the cable 4 (motor lead wire) on the winding to the terminal 14 on the hollow shaft 5. Connected; turn on the heating switch on the control cabinet 1, the current flows into the windings in the workpiece through the brushes, slip rings and cables 4 to heat; when the temperature of the windings and iron core reaches its set value, the workpiece is kept warm, Constant temperature; After the heat preservation is over, start the peristaltic pump 7, and use the dropper 8 to drip the paint on the inner and outer circles of the two ends of the winding of the workpiece at the same time; at the same time, start the drive motor 12 to make the workpiece start to rotate, and adjust according to the outer circle of the winding Good the rotational angular speed of the workpiece, and adjust the flow rate of the dripping paint (glue) until it meets the process requirements; after the dripping is completed, turn off the peristaltic pump 7 to stop the dripping; after the curing and drying process is completed, turn off the drive workpiece Rotating speed-regulating motor; unloading the workpiece, the whole process of insulation treatment ends. Of course, it can also include unloading the work piece and moving it to an oven for centralized drying after the paint dripping and curing process is over.

The embodiment of the application also discloses a dipping process for the electric motor winding to heat the rotary dipping equipment, wherein the motor winding energizes to heat the rotary dipping equipment includes:

The supporting assembly includes a frame 11, a bearing seat 2 fixed on the frame 11, and a hollow shaft 5 rotatably arranged on the bearing seat 2. The end of the hollow shaft 5 is fixed with the workpiece to be dripped; the rotating assembly includes a drive motor 12 and the transmission mechanism 6, the driving motor 12 drives the hollow shaft 5 to rotate through the transmission mechanism 6; the heating assembly includes the power supply, the cable 4, the brush slip ring mechanism 3 and the temperature sensor for measuring the temperature of the workpiece to be dripped, and the brush slip The ring mechanism 3 is sleeved on the hollow shaft 5; the dripping component includes a peristaltic pump 7, a paint storage bucket 13, and a dropper 8. The peristaltic pump 7 extracts the paint from the paint storage bucket 13 and passes the dropper 8 on the workpiece to be dripped Paint dripping; control components, including control cabinet 1, which is electrically connected with drive motor 12, power supply, temperature sensor and peristaltic pump 7, and controls the start and stop and speed of drive motor 12, and controls the power on and off according to the received temperature sensor signal , Control the start and stop of the peristaltic pump 7; among them, the workpiece to be dripped includes the winding stator 9, the moving and static ends of the brush slip ring mechanism 3 respectively lead out the cable 4 to connect the winding and the power supply of the winding stator 9, and the cable 4 passes through the hollow shaft 5. The hollow part connects the winding and the brush slip ring mechanism 3;

Then, the above-mentioned drip immersion process includes the following steps:

Step 10: Fix the workpiece to be dripped on the hollow shaft 5, and connect the winding to the power supply;

Step 20, the control cabinet 1 is set with a set temperature value, the power is turned on through the control cabinet 1, the winding stator 9 is energized and heated, and the temperature sensor measures the temperature of the winding stator 9 and feeds it back to the control cabinet 1;

Step 30: When the temperature of the winding stator 9 reaches the set temperature value, the control cabinet 1 controls the power supply current to maintain the temperature of the winding stator 9 unchanged;

Step 40, start the peristaltic pump 7 and the driving motor 12, the control cabinet 1 adjusts the speed of the driving motor 12 according to the outer diameter of the winding, and adjusts the dripping flow rate through the peristaltic pump 7;

Step 50: Turn off the peristaltic pump 7 after the paint dripping is finished, turn off the drive motor 12 after curing and drying the workpiece to be dripped, and unload the workpiece to be dripped from the hollow shaft 5.

In different embodiments, in addition to using the peristaltic pump 7 to control the dripping flow rate of the insulating paint, it also includes the use of other electric, pneumatic, and hydraulic pumps to control the dripping flow rate of the insulating paint. Various manual and electric control valves are installed to control the dripping flow of insulating paint.

The beneficial effect of the present invention is that the technical scheme of the present invention can ensure that the workpiece (with winding stator and rotor) rotates throughout the entire insulation treatment process (preheating, dripping, curing, and drying), and its advantages are:

(2) Compared with the ordinary dripping insulation treatment process (using oven and drying tunnel to heat the workpiece), due to the alternating current in the winding of the dripping link, an electromagnetic field will be generated in the iron core, forming an electromagnetic oscillation, which is beneficial to the insulating paint The capillary penetration of (glue) is especially beneficial to the penetration of insulating paint into the iron core slot, increasing the amount of paint hanging on the winding, thereby improving the insulation performance of the motor winding.

Taking the above-mentioned ideal embodiment based on this application as enlightenment, and through the above description, relevant staff can make various changes and modifications without departing from the scope of the technical idea of this application. The technical scope of this application is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

A rotary dipping equipment for energizing and heating motor windings is characterized in that it comprises:

The supporting assembly includes a frame, a bearing seat fixed on the frame, and a hollow shaft rotatably arranged on the bearing seat, and the end of the hollow shaft is fixed with a workpiece to be dripped;

The rotating assembly includes a drive motor and a transmission mechanism, and the drive motor drives the hollow shaft to rotate through the transmission mechanism;

The heating assembly includes a power supply, a cable, a brush slip ring mechanism, and a temperature sensor for measuring the temperature of the workpiece to be dripped, and the brush slip ring mechanism is sleeved on the hollow shaft;

The dripping assembly includes a peristaltic pump, a paint storage bucket, and a dropper. The peristaltic pump extracts paint from the paint storage bucket and drips paint on the workpiece to be dripped through the dropper;

The control component includes a control cabinet, which is electrically connected to the drive motor, power supply, temperature sensor, and peristaltic pump, and controls the start and stop and speed of the drive motor, and controls the power supply to open and close according to the temperature sensor signal. Control the start and stop of the peristaltic pump;

Wherein, the workpiece to be dripped includes a winding stator, the moving and static ends of the brush slip ring mechanism respectively lead out the cable to connect the winding of the winding stator and the power source, and the cable passes through the hollow shaft The hollow part connects the winding and the brush slip ring mechanism.
The motor winding energized heating rotary paint dipping equipment according to claim 1, wherein the supporting assembly includes a pair of the bearing seats arranged at intervals, and the brush slip ring mechanism is arranged on the hollow shaft and Located between a pair of said bearing seats.
The motor winding energized heating rotary paint dipping equipment according to claim 1, wherein the transmission mechanism comprises a reducer, a pair of sprockets and a chain connected to the sprockets, and the sprockets are respectively arranged on the On the output end of the reducer and the hollow shaft, the drive motor is a speed-regulating motor, and the output end of the speed-regulating motor is connected to the input end of the reducer.
The motor winding energized heating rotary paint dipping equipment according to claim 1, further comprising a mechanical clamping mechanism, which is fixed at the end of the hollow shaft for clamping the workpiece to be dripped and dipped .
The electric motor winding heating rotary paint dipping equipment according to claim 4, characterized in that, the mechanical clamping mechanism is also connected with a power source, and the power source is an air cylinder or a hydraulic oil cylinder.
The motor winding energized heating rotary dipping equipment according to claim 1, wherein the power source is an alternating current power source.
The motor winding energized heating rotary paint dipping equipment according to claim 1, wherein the hollow shaft is provided with an opening for the cable to pass in and out.
The motor winding energized heating rotary paint dipping equipment according to claim 1, wherein the brush slip ring mechanism includes a carbon brush as a static end and a slip ring as a moving end, and the slip ring is fixed to the hollow shaft The carbon brush is fixed on the frame, the rotating hollow shaft passes through the slip ring and drives the slip ring to rotate, and the carbon brush slides on the slip ring.
The motor winding energized heating rotary paint dipping equipment according to claim 1, wherein the end of the hollow shaft is further provided with a terminal, and the cable passes through the hollow part of the hollow shaft and is connected to the terminal Above, the lead wire of the winding stator is detachably connected to the terminal.
A dipping process for a motor winding energized heating rotary dipping equipment is characterized in that the motor winding energized heating rotary dipping equipment includes:

The supporting assembly includes a frame, a bearing seat fixed on the frame, and a hollow shaft rotatably arranged on the bearing seat, and the end of the hollow shaft is fixed with a workpiece to be dripped;

The rotating assembly includes a drive motor and a transmission mechanism, and the drive motor drives the hollow shaft to rotate through the transmission mechanism;

The heating assembly includes a power supply, a cable, a brush slip ring mechanism, and a temperature sensor for measuring the temperature of the workpiece to be dripped, and the brush slip ring mechanism is sleeved on the hollow shaft;

The dripping assembly includes a peristaltic pump, a paint storage bucket, and a dropper. The peristaltic pump extracts paint from the paint storage bucket and drips paint on the workpiece to be dripped through the dropper;

The control component includes a control cabinet, which is electrically connected to the drive motor, power supply, temperature sensor, and peristaltic pump, and controls the start and stop and speed of the drive motor, and controls the power supply to open and close according to the temperature sensor signal. Control the start and stop of the peristaltic pump;

Wherein, the workpiece to be dripped includes a winding stator, the moving and static ends of the brush slip ring mechanism respectively lead out the cable to connect the winding of the winding stator and the power source, and the cable passes through the hollow shaft The hollow part connects the winding and the brush slip ring mechanism;

The drip immersion process includes the following steps:

Step 10: Fix the workpiece to be dripped on the hollow shaft, and connect the winding to the power source;

Step 20: The control cabinet is set with a set temperature value, the power is turned on through the control cabinet, the winding stator is energized and heated, and the temperature sensor measures the winding stator temperature and feeds it back to the control cabinet ；

Step 30: When the winding stator temperature reaches the set temperature value, the control cabinet controls the power supply current to maintain the winding stator temperature unchanged;

Step 40, start the peristaltic pump and the drive motor, the control cabinet adjusts the rotation speed of the drive motor according to the outer diameter of the winding, and adjusts the paint dripping flow rate through the peristaltic pump;

Step 50: Turn off the peristaltic pump after the paint dripping is finished, turn off the drive motor after curing and drying the workpiece to be dripped, and unload the workpiece to be dripped from the hollow shaft.