A drop painting device for an electric machine stator

Abstract

The utility model provides a kind of for motor stator's paint dripping device, it is related to paint dripping field, including two paint dripping components;Paint dripping component includes fixed seat and paint dripping shaft;Fixed seat is opened with the recess of cylindrical shape;Recess groove bottom center is opened with rotating hole;Paint dripping shaft can be rotatably fixed in rotating hole;The notch of the groove of two fixed seats is set towards;Paint dripping shaft is horizontally arranged;Paint dripping shaft is opened with inner chamber in;The bottom arc side wall of paint dripping shaft is opened with a plurality of first paint dripping holes;First paint dripping hole is communicated with inner chamber;First paint dripping hole is located in recess;It further includes drive assembly;Drive assembly drives fixed seat to rotate.The utility model can solve the problem that the efficiency of motor stator paint dripping treatment is reduced due to the limitation of paint dripping range of paint dripping nozzle in prior art paint dripping module, and motor stator needs to be adjusted by tilting module to tilt state, to cooperate with paint dripping module to paint winding on motor stator.

Description

Technical Field

[0001] This utility model relates to the field of paint dripping, and more particularly to a paint dripping device for motor stators. Background Technology

[0002] An electric motor is a device that converts or transmits electrical energy based on the law of electromagnetic induction. A lithium-ion electric motor is a type of motor that uses a lithium battery as its power source. Its stator usually uses flat wire windings to improve motor efficiency. However, damage to the insulation layer of the wires in the motor stator can lead to a short circuit. In order to maintain the normal operation of the motor, the motor stator needs to be treated with varnish.

[0003] The varnish-drip process involves uniformly filling the gaps in the stator coils with insulating varnish. For example, Chinese patent application number 202421732269.4 discloses a varnish-drip device and system for a flat-wire motor stator coil, including a support frame; a gripper module for gripping the stator coil; a tilting module mounted on the support frame for driving the gripper module to tilt relative to the horizontal direction; a rotating module mounted on the tilting module for clamping the gripper module and driving it to rotate around its tilt direction; and a varnish-drip module for dripping varnish onto the stator coil in its tilted and rotated states. The varnish-drip system also includes a mounting frame, on which the support frame of the flat-wire motor stator coil varnish-drip device is mounted; the mounting frame also has a feeding module and a discharging module for conveying the stator coil. The varnish-drip device for a flat-wire motor stator coil provided by the aforementioned patent can realize the entire process of gripping, tilting, rotating, and dripping varnish onto the stator coil, effectively improving the varnish-drip quality and production efficiency.

[0004] However, when using the flat wire motor stator coil varnishing device provided by the above-mentioned patent, the varnishing range of the varnishing nozzle in the varnishing module is limited, and the motor stator needs to be adjusted to a tilting state by a tilting module in order to cooperate with the varnishing module to varnish the windings on the motor stator, thereby reducing the efficiency of varnishing the motor stator. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a paint-drip device for a motor stator, which solves the problem that in the prior art, due to the limited dripping range of the paint-drip nozzle in the paint-drip module, the motor stator needs to be adjusted in a tilting module to cooperate with the paint-drip module to drip paint onto the windings on the motor stator, thus reducing the efficiency of paint-drip processing on the motor stator. By setting the paint-drip hole inside the motor stator, the need to adjust the tilting state of the motor stator during paint dripping is avoided, thereby improving the efficiency of paint-drip processing on the motor stator.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] This utility model provides a paint dripping device for a motor stator, comprising two paint dripping components; each paint dripping component includes a fixed base and a paint dripping shaft; the fixed base has a cylindrical groove; a rotating hole is formed through the groove with the center of the circular bottom of the groove as the center; the paint dripping shaft is rotatably fixed in the rotating hole; the groove openings on the two fixed bases are arranged facing each other;

[0008] The paint-drip shaft is horizontally positioned; an inner cavity is formed within the paint-drip shaft; a plurality of first paint-drip holes are formed on the bottom arc-shaped sidewall of the paint-drip shaft; the first paint-drip holes communicate with the inner cavity; the first paint-drip holes are located within the groove; all the first paint-drip holes are located on the same straight line, which is taken as the first straight line; the first straight line is parallel to the axis of the paint-drip shaft; the distance between two adjacent first paint-drip holes is equal.

[0009] It also includes a drive component; the drive component drives the fixed base to rotate.

[0010] The paint dripping device for motor stators provided by this utility model preferably further includes a heating coil; the heating coil is disposed in the fixed base; the heating coil is arranged around the groove; the heating coil is evenly distributed.

[0011] The paint dripping device for motor stators provided by this utility model preferably has a plurality of elastic protrusions on the inner wall of the groove; all of the elastic protrusions are evenly distributed.

[0012] The paint dripping device for motor stator provided by this utility model preferably includes a first electromagnetic valve for controlling the flow of paint through the first paint dripping hole between the first paint dripping hole and the inner cavity.

[0013] The paint dripping device for motor stators provided by this utility model preferably includes a paint tank storing insulating paint; the paint tank is in communication with the inner cavity.

[0014] The paint dripping device for motor stator provided by this utility model preferably includes a driving assembly comprising a motor, a driving gear, and a driven gear.

[0015] The fixing base is provided with an annular fixing member; the annular fixing member is sleeved on the outside of the paint dripping shaft; the axis of the annular fixing member coincides with the axis of the paint dripping shaft; the annular fixing member is located outside the groove;

[0016] The driving gear is fixed to the output shaft of the motor; the driven gear is fixed to the outer side wall of the annular fixing member; the driving gear and the driven gear are meshed and connected for transmission.

[0017] The paint dripping device for motor stators provided by this utility model preferably includes a bearing between the fixed base and the paint dripping shaft; the outer circle of the bearing is fixed to the inner sidewall of the rotating hole; and the inner circle of the bearing is fixed to the arcuate sidewall of the paint dripping shaft.

[0018] The paint-drip device for a motor stator provided by this utility model preferably includes a plurality of second paint-drip holes on the bottom arcuate sidewall of the paint-drip shaft; the second paint-drip holes communicate with the inner cavity; the second paint-drip holes are located within the groove; all the second paint-drip holes are located on the same straight line, which is taken as the second straight line; the second straight line is parallel to the first straight line; the distance between two adjacent second paint-drip holes is equal; the second paint-drip hole is located between two adjacent first paint-drip holes; the diameter of the second paint-drip hole is larger than the distance between two adjacent first paint-drip holes.

[0019] The paint dripping device for motor stator provided by this utility model preferably includes a second solenoid valve for controlling the flow of the second paint dripping hole between the second paint dripping hole and the inner cavity.

[0020] The above technical solution has the following advantages or beneficial effects:

[0021] This utility model provides a varnish-drip device for a motor stator. To achieve varnish dripping onto the windings inside the motor stator, it includes two dripping components. Specifically, each dripping component includes a fixing seat and a dripping shaft. To accommodate and fix the motor stator, the fixing seat has a cylindrical groove for placing the cylindrical motor stator. The outer wall of the motor stator is interference-fitted with the inner wall of the groove, ensuring consistency between the motor stator and the fixing seat during rotation. Since the windings are embedded in the stator slots of the stator core, and the stator slots are located on the inner wall of the stator core, varnish dripping is required onto the windings inside the stator core. Specifically, a rotating hole is formed centered on the center of the circular bottom of the groove, allowing the dripping shaft to be rotatably fixed to the rotating hole. Inside the moving hole, when the motor stator is assembled into the groove, the varnish-drip shaft extends into the iron core, making it easier to drip varnish onto the windings inside the stator iron core. Specifically, to achieve varnish dripping onto the inside of the motor stator via the varnish-drip shaft, an inner cavity is provided inside the varnish-drip shaft to store insulating varnish. Furthermore, the varnish-drip shaft is set horizontally, so that the motor stator assembled in the groove is placed horizontally. Several first varnish-drip holes are provided on the bottom arc-shaped side wall of the varnish-drip shaft. The first varnish-drip holes are connected to the inner cavity. Due to gravity, the insulating varnish is injected from the inner cavity into the first varnish-drip holes and drips onto the windings inside the motor stator. At the same time, to avoid the insulating varnish dripping onto the outside of the groove and causing waste, the first varnish-drip holes are located inside the groove.

[0022] To ensure uniform dripping of insulating varnish onto the windings, all first drip holes are positioned on a straight line, designated as the first straight line. This first straight line is parallel to the axis of the dripping shaft, and the distance between any two adjacent first drip holes is equal. Each time insulating varnish drips from a first drip hole, the dripping varnish forms a straight line, covering the winding below the current position and avoiding dripping dead zones. Simultaneously, a drive assembly is included. This drive assembly rotates the fixed base, while the dripping shaft remains stationary, meaning the position of the first drip holes remains unchanged. This allows the motor stator to rotate, adjusting the motor stator to a position directly below the first drip hole, enabling the first drip hole to drip varnish onto other windings on the motor stator. This method effectively prevents uneven distribution of insulating varnish and reduces dripping dead zones.

[0023] The grooves on the two mounting brackets are arranged facing each other. When the motor stator is assembled on the two mounting brackets, the grooves of the two mounting brackets are connected and communicated, and the two varnish-drip shafts are in contact. At this time, the motor stator is sealed in the grooves, preventing the insulating varnish from dripping onto the outside of the grooves and causing waste of the insulating varnish. It should be noted that when dripping varnish onto the part of the winding that extends beyond the stator core, an annular washer can be set in the grooves of the two mounting brackets. The annular washer surrounds the part of the winding that extends beyond the stator core, thereby facilitating the dripping treatment of the part of the winding that extends beyond the stator core.

[0024] Existing technologies have limitations in the dripping range of the dripping nozzles in the dripping module. The motor stator needs to be tilted using a tilting module to coordinate with the dripping module for dripping paint onto the windings, thus reducing the efficiency of the motor stator dripping process. The dripping device for the motor stator provided by this invention, by placing the first dripping holes inside the motor stator and arranging them in a straight line, allows each dripping hole to drip paint onto the windings below that line. With the aid of rotation, all windings can be dripped. Compared to the existing technology that uses dripping nozzles and adjusts the tilt angle to drip paint onto the windings, this significantly improves the efficiency of the motor stator dripping process. Attached Figure Description

[0025] The present invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings. The drawings are not intentionally drawn to scale; the focus is on illustrating the gist of the invention.

[0026] Figure 1 This is a cross-sectional schematic diagram of the paint dripping device for motor stator provided in Embodiment 1 of this utility model.

[0027] Figure 2This is a bottom view of the paint-drip shaft in the paint-drip device for motor stator provided in Embodiment 1 of this utility model. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0029] Example 1:

[0030] like Figure 1 As shown, Embodiment 1 of this utility model provides a paint dripping device for a motor stator, comprising two paint dripping components 1; each paint dripping component 1 includes a fixed base 11 and a paint dripping shaft 12; the fixed base 11 has a cylindrical groove 111; a rotating hole 112 is provided through the center of the circular bottom of the groove 111; the paint dripping shaft 12 is rotatably fixed in the rotating hole 112; the groove openings of the two fixed bases 11 are arranged facing each other;

[0031] The paint dripping shaft 12 is horizontally positioned; an inner cavity 121 is formed inside the paint dripping shaft 12; a plurality of first paint dripping holes 122 are formed on the bottom arc-shaped sidewall of the paint dripping shaft 12; the first paint dripping holes 122 communicate with the inner cavity 121; the first paint dripping holes 122 are located in the groove 111; all the first paint dripping holes 122 are located on the same straight line, and the straight line is taken as the first straight line; the first straight line is parallel to the axis of the paint dripping shaft 12; the distance between two adjacent first paint dripping holes 122 is equal;

[0032] It also includes a drive component 2; the drive component 2 drives the fixed base 11 to rotate.

[0033] When using the paint-drip device for a motor stator provided in Embodiment 1 of this utility model, the two fixing seats 11 are spaced apart, and the motor stator is fitted onto the paint-drip shaft 12 on one of the fixing seats 11. At this time, one end of the motor stator is located in the groove 111 of the fixing seat 11, and the outer side wall of the motor stator is press-fitted with the inner side wall of the groove 111 of the fixing seat 11. The other fixing seat 11 is then moved closer to the fixing seat 11 on which the motor stator is mounted, so that the motor stator is fitted onto its paint-drip shaft 12, and the motor stator... The outer wall is interference-fitted with the inner wall of the groove 111 of the fixed seat 11; at this time, the grooves 111 of the two fixed seats 11 are connected and communicated, and the two paint-drip shafts 12 are in contact; insulating varnish is added to the inner cavity 121 of the paint-drip shaft 12, and the insulating varnish is dripped onto the winding inside the motor stator through the first paint-drip hole 122; the two fixed seats 11 are driven to rotate synchronously by the drive assembly 2, at this time the paint-drip shaft 12 does not rotate, the motor stator rotates, changing the position of the paint dripping on the winding, so as to achieve uniform paint dripping on the winding inside the motor stator.

[0034] The paint-drip device for a motor stator provided in Embodiment 1 of this utility model includes two paint-drip components 1 for dripping paint onto the windings inside the motor stator. Specifically, each paint-drip component 1 includes a fixed base 11 and a paint-drip shaft 12. To accommodate and fix the motor stator, the fixed base 11 has a cylindrical groove 111 for placing the cylindrical motor stator. The outer wall of the motor stator is interference-fitted with the inner wall of the groove 111, ensuring consistency between the motor stator and the fixed base 11 during rotation. Since the windings are embedded in the stator slots of the stator core, and the stator slots are located on the inner wall of the stator core, paint dripping is required onto the windings inside the stator core. Specifically, a rotating hole 112 is provided centered on the center of the circular bottom of the groove 111. The paint-drip shaft 12 is rotatably fixed within the rotating hole 112. When the stator is assembled into the groove 111, the varnish-drip shaft 12 extends into the iron core, making it easier to drip varnish onto the windings inside the stator iron core. To achieve varnish dripping onto the inside of the motor stator via the varnish-drip shaft 12, specifically, an inner cavity 121 is provided inside the varnish-drip shaft 12 for storing insulating varnish. Furthermore, the varnish-drip shaft 12 is set horizontally, so that the motor stator assembled in the groove 111 is placed horizontally. Several first drip holes 122 are provided on the bottom arc sidewall of the varnish-drip shaft 12. The first drip holes 122 are connected to the inner cavity 121. Due to gravity, the insulating varnish is injected from the inner cavity 121 into the first drip holes 122 and drips onto the windings inside the motor stator. At the same time, to avoid the insulating varnish dripping onto the outside of the groove 111 and causing waste, the first drip holes 122 are located inside the groove 111.

[0035] To ensure uniform dripping of insulating varnish onto the windings, all first drip holes 122 are positioned on the same straight line, which is considered the first straight line. This first straight line is parallel to the axis of the dripping shaft 12, and the distance between two adjacent first drip holes 122 is equal. Whenever insulating varnish drips from a first drip hole 122, the dripping varnish forms a straight line, covering the winding below the current position and avoiding dripping dead zones. Simultaneously, a drive assembly 2 is included, which drives the fixed base 11 to rotate. At this time, the dripping shaft 12 does not rotate, meaning the position of the first drip holes 122 remains unchanged, causing the motor stator to rotate. By adjusting the position of the motor stator directly below the first drip holes 122, the first drip holes 122 can drip varnish onto the windings at other positions on the motor stator. This method avoids uneven distribution of insulating varnish and reduces dripping dead zones.

[0036] The grooves 111 on the two fixed seats 11 are arranged facing each other. When the motor stator is assembled on the two fixed seats 11, the grooves 111 of the two fixed seats 11 are connected and communicated, and the two varnish-drip shafts 12 are in contact. At this time, the motor stator is sealed in the groove 111, which prevents the insulating varnish from dripping onto the outside of the groove 111 and causing waste of the insulating varnish. It should be noted that when dripping varnish on the part of the winding that extends beyond the stator core, an annular washer can be set in the groove 111 of the two fixed seats 11. The annular washer is set around the part of the winding that extends beyond the stator core, which makes it easier to drip varnish on the part of the winding that extends beyond the stator core.

[0037] Existing technologies have limitations in the dripping range of the dripping nozzles in the dripping module. The motor stator needs to be tilted using a tilting module to coordinate with the dripping module for dripping paint onto the windings, thus reducing the efficiency of the motor stator dripping process. The dripping device for the motor stator provided in Embodiment 1 of this utility model, by placing the first dripping holes 122 inside the motor stator and arranging them in a straight line, allows each dripping hole 122 to drip paint onto the windings below that line each time it drips. With the aid of rotation, all windings can be dripped. Compared to the existing technology that uses dripping nozzles and adjusts the tilt angle to drip paint onto the windings, this significantly improves the efficiency of the motor stator dripping process.

[0038] like Figure 1 As shown, the paint dripping device for motor stators provided in Embodiment 1 of this utility model preferably includes a heating coil 3 for preheating and heating in order to obtain a better paint dripping effect. Specifically, the heating coil 3 is disposed in the fixed base 11, and the heating coil 3 is arranged around the groove 111. The heating coil 3 is evenly distributed. By using a stable power supply to energize the heating coil 3, the temperature of the heating coil 3 is increased to preheat or heat the motor stator in the fixed base 11, thereby reducing the time cost required for preheating or heating and improving the efficiency of paint dripping treatment of the motor stator.

[0039] like Figure 1 As shown, the paint dripping device for motor stator provided in Embodiment 1 of this utility model preferably has a plurality of elastic protrusions 1111 on the inner wall of the groove 111 in order to achieve an interference fit between the outer wall of the motor stator and the inner wall of the groove 111, and all the elastic protrusions 1111 are evenly distributed.

[0040] like Figure 1 As shown, the paint dripping device for motor stator provided in Embodiment 1 of this utility model preferably has a first solenoid valve 123 for controlling the flow of the first paint dripping hole 122 between the first paint dripping hole 122 and the inner cavity 121; the first solenoid valve 123 is used to control the opening and closing of the first paint dripping hole 122 at the same time, so that the paint dripping of the winding is more uniform.

[0041] like Figure 1 As shown, the paint dripping device for motor stator provided in Embodiment 1 of this utility model preferably includes a paint tank 13 storing insulating paint, which is connected to the inner cavity 121 and is used to supply insulating paint to the inner cavity 121.

[0042] like Figure 1 As shown, the paint dripping device for the motor stator provided in Embodiment 1 of this utility model is preferably configured such that, in order to drive the fixed base 11 to rotate via the drive assembly 2, the drive assembly 2 specifically includes a motor 21, a drive gear 22, and a driven gear 23.

[0043] A ring-shaped fixing member 113 is provided on the fixed base 11. The ring-shaped fixing member 113 is sleeved on the outside of the paint dripping shaft 12. The axis of the ring-shaped fixing member 113 coincides with the axis of the paint dripping shaft 12. The ring-shaped fixing member 113 is located outside the groove 111 and is fixed to the fixed base 11. The driving gear 22 is fixed on the output shaft of the motor 21, and the driven gear 23 is fixed on the outer circular side wall of the ring-shaped fixing member 113. The driving gear 22 and the driven gear 23 are meshed and connected for transmission. The motor 21 drives the driving gear 22 to rotate, the driving gear 22 drives the driven gear 23 to rotate, and the driven gear 23 drives the fixed base 11 to rotate.

[0044] It should be noted that, since the inner wall of the groove 111 is interference-fitted with the outer wall of the motor stator, when the drive assembly 2 drives one of the fixed seats 11, the other fixed seat 11 can also rotate at the same time, without the need to set up an additional drive assembly 2 to drive the other fixed seat 11.

[0045] The paint dripping device for a motor stator provided in Embodiment 1 of this utility model is preferably provided with a bearing between the fixed seat 11 and the paint dripping shaft 12 in order to achieve rotatable fixation between the fixed seat 11 and the paint dripping shaft 12. The outer circle of the bearing is fixed to the inner side wall of the rotating hole 112, and the inner circle of the bearing is fixed to the arc side wall of the paint dripping shaft 12.

[0046] like Figures 1-2As shown in Embodiment 1 of this utility model, the varnish-drip device for a motor stator preferably addresses the issue that uneven varnish dripping from the winding may occur due to gaps between two adjacent first varnish-drip holes 122. Therefore, a plurality of second varnish-drip holes 124 are also provided on the bottom arc-shaped sidewall of the varnish-drip shaft 12. These second varnish-drip holes 124 communicate with the inner cavity 121 and are located within the groove 111. The insulating varnish fills the gaps between two adjacent first varnish-drip holes 122 through the second varnish-drip holes 124. Specifically, all the second varnish-drip holes 124 are located on the same straight line. The line serves as the second straight line, which is parallel to and adjacent to the first straight line. To ensure that the second paint drop hole 124 can fill the gap between two adjacent first paint drop holes 122, the spacing between two adjacent second paint drop holes 124 is equal. The second paint drop hole 124 is located between two adjacent first paint drop holes 122, and the diameter of the second paint drop hole 124 is larger than the spacing between two adjacent first paint drop holes 122. Using the above structure can avoid paint dripping dead corners in the first paint drop holes 122, and the addition of more paint drop holes can effectively improve the efficiency of paint dripping treatment on the motor stator.

[0047] The paint dripping device for motor stator provided in Embodiment 1 of this utility model preferably includes a second solenoid valve between the second paint dripping hole 124 and the inner cavity 121 for controlling the flow of the second paint dripping hole 124, which controls the opening and closing of the second paint dripping hole 124 simultaneously, and works in conjunction with the first paint dripping hole 122 to perform paint dripping treatment.

[0048] In summary, the paint-drip device for motor stators provided by this utility model can solve the problem that the existing technology requires the motor stator to be tilted by a tilting module to cooperate with the paint-drip module to drip paint onto the windings of the motor stator due to the limited dripping range of the paint-drip nozzle in the paint-drip module, thus reducing the efficiency of paint-drip processing on the motor stator; by setting the paint-drip hole inside the motor stator, the need to adjust the tilting state of the motor stator during paint dripping is avoided, thereby improving the efficiency of paint-drip processing on the motor stator.

[0049] Those skilled in the art should understand that variations can be implemented by combining existing technology and the above embodiments, and will not be elaborated here. Such variations do not affect the substantive content of this utility model, and will not be elaborated here.

[0050] The preferred embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in a conventional manner in the art; any possible variations and modifications made by those skilled in the art without departing from the technical solution of this utility model, or equivalent embodiments with equivalent changes, do not affect the essential content of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the content of the technical solution of this utility model, shall still fall within the protection scope of the technical solution of this utility model.

Claims

1. A paint-drip device for an electric motor stator, characterized in that, It includes two paint-drip assemblies; each paint-drip assembly includes a fixed base and a paint-drip shaft; the fixed base has a cylindrical groove; a rotating hole is formed through the groove with the center of the circular bottom of the groove as the center; the paint-drip shaft is rotatably fixed in the rotating hole; the groove openings on the two fixed bases are arranged facing each other; The paint-drip shaft is horizontally positioned; an inner cavity is formed within the paint-drip shaft; a plurality of first paint-drip holes are formed on the bottom arc-shaped sidewall of the paint-drip shaft; the first paint-drip holes communicate with the inner cavity; the first paint-drip holes are located within the groove; all the first paint-drip holes are located on the same straight line, which is taken as the first straight line; the first straight line is parallel to the axis of the paint-drip shaft; the distance between two adjacent first paint-drip holes is equal. It also includes a drive component; the drive component drives the fixed base to rotate.

2. The paint-drip device for an electric motor stator as described in claim 1, characterized in that, It also includes a heating coil; the heating coil is disposed within the fixing base; the heating coil is arranged around the groove; the heating coil is evenly distributed.

3. The paint-drip device for an electric motor stator as described in claim 1, characterized in that, The inner wall of the groove is provided with a number of elastic protrusions; all the elastic protrusions are evenly distributed.

4. The paint-drip device for an electric motor stator as described in claim 1, characterized in that, A first solenoid valve for controlling the flow of paint through the first dripping hole is provided between the first dripping hole and the inner cavity.

5. The paint-drip device for an electric motor stator as described in claim 1, characterized in that, The paint dripping assembly also includes a paint tank containing insulating paint; the paint tank is in communication with the inner cavity.

6. The paint-drip device for an electric motor stator as described in claim 1, characterized in that, The drive assembly includes a motor, a driving gear, and a driven gear; The fixed base is provided with an annular fixing member; the annular fixing member is sleeved on the outside of the paint dripping shaft; the axis of the annular fixing member coincides with the axis of the paint dripping shaft. The annular fastener is located outside the groove; The driving gear is fixed to the output shaft of the motor; the driven gear is fixed to the outer side wall of the annular fixing member; the driving gear and the driven gear are meshed and connected for transmission.

7. The paint-drip device for an electric motor stator as described in claim 1, characterized in that, A bearing is provided between the fixed base and the paint dripping shaft; the outer circle of the bearing is fixed to the inner wall of the rotating hole; the inner circle of the bearing is fixed to the arcuate side wall of the paint dripping shaft.

8. The paint-drip device for an electric motor stator as described in claim 1, characterized in that, The bottom arc-shaped sidewall of the paint-drip shaft is also provided with a plurality of second paint-drip holes; the second paint-drip holes are connected to the inner cavity; the second paint-drip holes are located in the groove; all the second paint-drip holes are located on the same straight line, and the straight line is taken as the second straight line; the second straight line is parallel to the first straight line; the distance between two adjacent second paint-drip holes is equal; the second paint-drip hole is located between two adjacent first paint-drip holes; the diameter of the second paint-drip hole is larger than the distance between two adjacent first paint-drip holes.

9. The paint-drip device for an electric motor stator as described in claim 8, characterized in that, A second solenoid valve for controlling the flow of paint through the second dripping hole is provided between the second dripping hole and the inner cavity.

Images