Motor surface paint spraying device

By using a drive component to make the paint gun oscillate in an arc trajectory and combining it with a mist suction component to purify the paint mist, the problems of uneven spraying on the motor surface and harmful paint mist are solved, achieving uniform spraying and health protection.

CN224218251UActive Publication Date: 2026-05-08DALIAN HUALIAN ELECTRIC CONTROL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DALIAN HUALIAN ELECTRIC CONTROL TECH CO LTD
Filing Date
2025-06-04
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing painting equipment produces uneven coating on the surface of the motor and generates harmful paint mist, affecting paint quality and health and safety.

Method used

The spray gun is driven by a drive assembly to swing back and forth in an arc-shaped trajectory, and is equipped with a mist-absorbing assembly to purify the paint mist, including a particulate filter and an activated carbon filter to remove harmful substances.

Benefits of technology

It achieves uniformity of paint spraying on the surface of the motor casing and purification of paint mist, thereby improving the quality of the paint layer and the safety of the working environment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of paint spraying devices, and discloses a motor surface paint spraying device which comprises a base, the top of the base is fixedly connected with a frame, the middle of the bottom end of the back face of the frame is rotationally connected with a transmission shaft through a bearing, and one end of the transmission shaft is fixedly connected with a connecting rod. A paint spraying gun is fixedly connected to the top end of the connecting rod, a gear is fixedly connected to the other end of the transmission shaft, a driving assembly is installed on the back face of the frame, and a mist suction assembly is installed at the top end of the frame. The driving assembly comprises an air cylinder, an outer sliding rail, an inner sliding rail and a rack. The air cylinder is fixedly installed on one side of the bottom of the back face of the frame. According to the motor surface paint spraying device, the paint spraying gun is driven to swing back and forth in the arc-shaped track, paint spraying on the surface of a motor shell is more uniform, the quality of a paint layer is guaranteed, effective protection is achieved, paint mist generated by paint spraying on the surface of a motor can be purified, and human health is protected.
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Description

Technical Field

[0001] This utility model relates to the field of painting equipment technology, and in particular to a painting equipment for the surface of an electric motor. Background Technology

[0002] As the core device that converts electrical energy into mechanical energy, the electric motor drives the rotor to rotate through the principle of electromagnetic induction and is a key component of modern power systems. Painting the surface of the electric motor not only forms a physical barrier, effectively resisting corrosion caused by environmental factors such as humidity, salt spray, and acids and alkalis, but also extends the service life of the equipment.

[0003] However, existing painting equipment has shortcomings in the process of painting the surface of electric motors. First, the spray guns of existing painting equipment often move axially and spray in a straight line, resulting in uneven coating on the sides of the motor casing and affecting the quality of the paint layer. Second, paint mist is generated when painting the surface of the electric motor, which contains harmful particles. If inhaled, these particles can affect health and pose a safety hazard. Therefore, a new electric motor surface painting device is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a motor surface painting device, which aims to improve the problems of uneven coating on the side of the motor housing caused by the axial translation and linear reciprocating spraying of the spray gun in the existing painting device, as well as the generation of paint mist containing harmful particles during the painting of the motor surface, which can have a health impact when inhaled.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a motor surface painting device, comprising a base, a frame fixedly connected to the top of the base, a drive shaft rotatably connected to the middle of the bottom of the back of the frame via a bearing, a connecting rod fixedly connected to one end of the drive shaft, a paint gun fixedly connected to the top of the connecting rod, a gear fixedly connected to the other end of the drive shaft, a drive assembly installed on the back of the frame, and a mist suction assembly installed on the top of the frame.

[0006] The drive assembly includes a cylinder, an outer slide rail, an inner slide rail, and a rack. The cylinder is fixedly installed on one side of the bottom back of the frame. The inner slide rail is fixedly connected to the middle of the bottom back of the frame. The outer slide rail is slidably connected to the surface of the inner slide rail. The rack is fixedly connected to the bottom end of the inner slide rail, and the gear meshes with the rack. The output end of the cylinder is fixedly connected to one end of the top of the outer slide rail.

[0007] As a further description of the above technical solution:

[0008] The mist suction assembly includes a filter box, a fan, a mist suction head, and a filter assembly. The filter box is fixedly installed in the middle of the top of the frame. The fan is fixedly installed on the back of the filter box. The mist suction head is fixedly connected to one side of the top of the inner wall of the frame. The filter assembly is installed inside the filter box.

[0009] As a further description of the above technical solution:

[0010] The mist absorption assembly includes a particulate filter and an activated carbon filter. The particulate filter is fitted into one side of the filter box, and the activated carbon filter is fitted into the other side of the filter box.

[0011] As a further description of the above technical solution:

[0012] The top of the mist suction head is fixedly connected to the front of the filter box, and the input end of the fan is connected to the inside of the filter box.

[0013] As a further description of the above technical solution:

[0014] The filter box has a cover fixed to one side by bolts.

[0015] As a further description of the above technical solution:

[0016] The top of the base is fixedly connected to two curved slide rails on both sides, and the top of the paint gun is fixedly connected to a slider, which is slidably connected to the inner wall of the curved slide rail.

[0017] As a further description of the above technical solution:

[0018] The back of the paint spray gun is fixedly connected to a feeding hose, and the top of the back of the base has an arc-shaped opening.

[0019] As a further description of the above technical solution:

[0020] The feed hose is inserted and connected to the arc-shaped opening.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the outer slide rail is driven to slide on the inner slide rail by the starting cylinder, which can drive the rack to move left and right. Under the meshing gears, the transmission shaft can be rotated, which in turn drives the paint gun above to swing back and forth in an arc-shaped trajectory through the connecting rod. This makes the paint spraying on the surface of the motor housing more uniform, ensuring the quality of the paint layer and providing effective protection.

[0023] 2. In this utility model, during the painting process of the motor housing, a fan can be started, and with the help of the mist suction head, the paint mist generated during the painting can be guided to the filter box. The particulate filter screen blocks particulate impurities in the mist, and the activated carbon filter screen adsorbs harmful substances and odors in the mist. The filtered air is discharged from the fan output end, thereby purifying the paint mist generated by painting the surface of the motor and protecting human health. Attached Figure Description

[0024] Figure 1 This is a front perspective view of a motor surface painting device proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the connecting rod of a motor surface painting device proposed in this utility model;

[0026] Figure 3 This is a rear perspective view of a motor surface painting device proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the filter box of a motor surface painting device proposed in this utility model.

[0028] Legend:

[0029] 1. Base; 2. Frame; 3. Drive shaft; 4. Connecting rod; 5. Spray gun; 6. Slider; 7. Arc-shaped slide rail; 8. Gear; 9. Cylinder; 10. Outer slide rail; 11. Inner slide rail; 12. Rack; 13. Filter box; 14. Mist suction head; 15. Fan; 16. Granular filter screen; 17. Activated carbon filter screen; 18. Box cover; 19. Feed hose; 20. Arc-shaped opening. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figures 1-3This utility model provides an embodiment of an electric motor surface painting device, including a base 1, which serves as the basic support structure for supporting the electric motor housing and other components to be painted. A frame 2 is fixedly connected to the top of the base 1. A transmission shaft 3 is rotatably connected to the middle of the bottom of the back of the frame 2 via a bearing. The transmission shaft 3 can rotate flexibly under the support of the bearing, and its axis corresponds to the spraying center axis of the electric motor housing. A connecting rod 4 is fixedly connected to one end of the transmission shaft 3, which plays a transmission role. A paint gun 5 is fixedly connected to the top of the connecting rod 4, which is used to spray atomized paint to form a paint layer on the surface of the electric motor housing. A gear 8 is fixedly connected to the other end of the transmission shaft 3. A drive assembly is installed on the back of the frame 2, which provides power to drive the paint gun 5 to swing back and forth. A mist-absorbing assembly is installed at the top of the frame 2, which is used to collect and purify the paint mist generated during the painting process to improve the working environment.

[0032] Reference Figure 3 The drive assembly includes a cylinder 9, an outer slide rail 10, an inner slide rail 11, and a rack 12. The cylinder 9 is fixedly installed on one side of the bottom back of the frame 2. The inner slide rail 11 is fixedly connected to the middle of the bottom back of the frame 2. The outer slide rail 10 is slidably connected to the surface of the inner slide rail 11. The outer slide rail 10 can move left and right along the length of the inner slide rail 11 to ensure movement stability. The rack 12 is fixedly connected to the bottom end of the inner slide rail 11, and the gear 8 meshes with the rack 12 to convert the linear motion of the outer slide rail 10 into the rotational motion of the gear 8. The output end of the cylinder 9 is fixedly connected to one end of the top of the outer slide rail 10. The piston rod of the cylinder 9 is rigidly connected to the outer slide rail 10 to drive it to perform reciprocating linear motion.

[0033] Reference Figure 1 and Figure 4 The mist suction assembly includes a filter box 13, a fan 15, a mist suction head 14, and a filter component. The filter box 13 is fixedly installed in the middle of the top of the frame 2 to purify the paint mist. The fan 15 is fixedly installed on the back of the filter box 13. The mist suction head 14 is fixedly connected to one side of the top of the inner wall of the frame 2. The fan 15 provides power for mist suction and creates negative pressure in the painting area through suction, guiding the paint mist to flow towards the mist suction head 14. The filter component is installed inside the filter box 13 to intercept paint mist particles and adsorb harmful substances.

[0034] Reference Figure 4 The mist-absorbing assembly includes a particulate filter 16 and an activated carbon filter 17. The particulate filter 16 is fitted into one side of the filter box 13. The particulate filter 16 is a coarse filter layer used to intercept large particulate impurities in the paint mist. The activated carbon filter 17 is fitted into the other side of the filter box 13. The activated carbon filter 17 uses a porous structure to adsorb volatile organic compounds and odor molecules in the paint mist.

[0035] Reference Figure 4The top of the suction head 14 is fixedly connected to the front of the filter box 13, and a paint mist delivery channel is formed through the pipe connection to ensure that the suctioned paint mist enters the filter box 13 smoothly. The input end of the fan 15 is connected to the inside of the filter box 13. When the fan 15 is running, a negative pressure is formed inside the filter box 13, which pushes the paint mist through the particle filter 16 and the activated carbon filter 17 in sequence.

[0036] Reference Figure 1 A cover 18 is fixedly installed on one side of the filter box 13 by bolts. The cover 18 is used to close the filter box 13. The bolt connection method is easy to disassemble for maintenance of the internal filter screen.

[0037] Reference Figure 2 The top of the base 1 is fixedly connected to the two sides of the arc-shaped slide rail 7, and the top of the paint gun 5 is fixedly connected to the slider 6. The slider 6 is slidably connected to the inner wall of the arc-shaped slide rail 7. The arc of the arc-shaped slide rail 7 matches the outer circle of the motor housing. Together with the slider 6, it provides auxiliary guidance and support for the arc-shaped movement of the paint gun 5.

[0038] Reference Figure 3 The back of the paint gun 5 is fixedly connected to a feed hose 19, which is used to transport paint. The top of the back of the base 1 has an arc-shaped opening 20 with an arc shape to match the movement of the feed hose 19.

[0039] Reference Figure 3 The feed hose 19 is inserted and connected to the arc-shaped opening 20. After passing through the arc-shaped opening 20, the feed hose 19 is connected to the external paint supply system. The arc-shaped opening 20 provides space for the hose to move.

[0040] Working principle: The motor housing to be painted is placed in the middle of the base 1. The paint is pumped from the supply hose 19 to the paint gun 5 and sprayed out in atomized form to adhere to the surface of the motor housing and form a protective effect. The cylinder 9 drives the outer slide rail 10 to slide on the inner slide rail 11, which drives the rack 12 to move left and right. With the meshing gear 8, the transmission shaft 3 can be rotated, which in turn drives the paint gun 5 above to swing back and forth in an arc trajectory through the connecting rod 4. This makes the painting of the motor housing surface more uniform and ensures the quality of the paint layer to provide effective protection. During the painting process of the motor housing, the fan 15 can be started. With the setting of the mist suction head 14, the paint mist generated during the painting can be guided to the filter box 13. The particulate filter 16 blocks particulate impurities in the mist, and the activated carbon filter 17 adsorbs harmful substances and odors in the mist. The filtered air is discharged from the output end of the fan 15. This can purify the paint mist generated during the painting of the motor surface and protect human health.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for spraying paint on the surface of an electric motor, comprising a base (1), characterized in that: A frame (2) is fixedly connected to the top of the base (1). A drive shaft (3) is rotatably connected to the middle of the bottom of the back of the frame (2) via a bearing. A connecting rod (4) is fixedly connected to one end of the drive shaft (3). A paint spray gun (5) is fixedly connected to the top of the connecting rod (4). A gear (8) is fixedly connected to the other end of the drive shaft (3). A drive assembly is installed on the back of the frame (2). A mist suction assembly is installed on the top of the frame (2). The drive assembly includes a cylinder (9), an outer slide rail (10), an inner slide rail (11), and a rack (12). The cylinder (9) is fixedly installed on one side of the bottom back of the frame (2). The inner slide rail (11) is fixedly connected to the middle of the bottom back of the frame (2). The outer slide rail (10) is slidably connected to the surface of the inner slide rail (11). The rack (12) is fixedly connected to the bottom end of the inner slide rail (11), and the gear (8) meshes with the rack (12). The output end of the cylinder (9) is fixedly connected to one end of the top of the outer slide rail (10).

2. The electric motor surface painting device according to claim 1, characterized in that: The mist suction assembly includes a filter box (13), a fan (15), a mist suction head (14), and a filter assembly. The filter box (13) is fixedly installed at the middle of the top of the frame (2). The fan (15) is fixedly installed on the back of the filter box (13). The mist suction head (14) is fixedly connected to one side of the top of the inner wall of the frame (2). The filter assembly is installed inside the filter box (13).

3. The electric motor surface painting device according to claim 2, characterized in that: The mist-absorbing assembly includes a particulate filter (16) and an activated carbon filter (17). The particulate filter (16) is engaged with one side of the filter box (13), and the activated carbon filter (17) is engaged with the other side of the filter box (13).

4. The electric motor surface painting device according to claim 2, characterized in that: The top of the mist suction head (14) is fixedly connected to the front of the filter box (13), and the input end of the fan (15) is connected to the inside of the filter box (13).

5. The electric motor surface painting device according to claim 2, characterized in that: The filter box (13) is fixed to one side by bolts with a box cover (18).

6. The electric motor surface painting device according to claim 1, characterized in that: The top of the base (1) is fixedly connected to two sides of an arc-shaped slide rail (7), and the top of the paint gun (5) is fixedly connected to a slider (6), and the slider (6) is slidably connected to the inner wall of the arc-shaped slide rail (7).

7. The electric motor surface painting device according to claim 1, characterized in that: The back of the paint spray gun (5) is fixedly connected to a feeding hose (19), and the top of the back of the base (1) is provided with an arc-shaped opening (20).

8. The electric motor surface painting device according to claim 7, characterized in that: The feed hose (19) is inserted into the arc-shaped opening (20).