A motor rotor winding device

Abstract

The present invention discloses a motor rotor winding device, belonging to the technical field of rotor winding. A motor rotor winding device includes a winding mechanism, and the winding mechanism includes a base. The base has an operation recess, and two rotary joints are symmetrically arranged at the inner wall of the operation recess. Both of the two rotary joints have a rotating part and a fixed part. A double flying fork arm for winding is arranged at the rotating part, and a positioning block for limiting the rotor is jointly arranged at the fixed parts of the two rotary joints. When the rotating part rotates, the hydraulic oil inside the inner tube will convert the heat generated between the fixed part and the rotating part, thereby reducing the heat generated by the rotation of the fixed part and the rotating part, avoiding the problem that a large amount of heat generated during rotation cannot be discharged in time, resulting in an increase in the temperature at the connection between the rotating shaft and the double flying fork, an increase in resistance, hindering the high-speed rotation of the double flying fork arm, and being easily damaged due to clamping the rotating shaft, affecting the service life of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of rotor winding, and more particularly to a motor rotor winding device. Background Art

[0002] A motor rotor generally refers to the rotating part of a motor, which is often divided into a motor rotor and a generator rotor. The coil is one of the important components of the motor rotor. When staff produce a motor rotor, they need to wind copper wire around the motor rotor. With the rapid development of modern technology, in order to improve the production efficiency of staff and reduce the production labor cost, more and more manufacturers begin to use a motor rotor winding device to replace the traditional manual winding.

[0003] However, the current motor rotor winding devices are already very mature. For example, Figure 1 and Figure 2 as shown in the existing double flying fork winding machine. Since the double flying fork arms in the double flying fork winding machine will rotate rapidly along the rotating shaft during winding, a large amount of heat will be generated during rotation and cannot be discharged in time, resulting in an increase in the temperature at the connection between the rotating shaft and the double flying fork arms, an increase in resistance, which hinders the high-speed rotation of the double flying fork arms. At the same time, it is easy to be damaged due to holding the rotating shaft tightly, affecting the service life of the device. Summary of the Invention

[0004] The present invention provides a motor rotor winding device, which can overcome certain or some defects of the prior art.

[0005] According to a motor rotor winding device of the present invention, it includes a winding mechanism. The winding mechanism includes a base, the base has an operation recess, and two rotating joints for rotating are symmetrically arranged at the inner wall of the operation recess. Both of the two rotating joints have a rotating part and a fixed part. A double flying fork arm for winding is arranged at the rotating part, and a positioning block for limiting the rotor is jointly arranged at the fixed parts of the two rotating joints.

[0006] Preferably, the rotating part includes a housing, the inner wall of the housing is provided with a first bearing and a second bearing, the inner rings of the first bearing and the second bearing are jointly fixedly installed with the fixed part, and first sealing washers are fixedly installed at both the top and bottom ends of the first bearing and the second bearing.

[0007] Through the above structure, the rotational stability of the fixed part in the rotating part is improved.

[0008] Preferably, the fixed part includes a rotating shaft component, a pressure relief mechanism is fixedly installed at the top of the rotating shaft component, and a mounting plate is fixedly installed at the top of the pressure relief mechanism.

[0009] Through the above structure, it is convenient to replace positioning blocks of different sizes.

[0010] Preferably, an inner tube is installed inside the rotating shaft component. The inner tube is coaxially arranged with the rotating shaft component. The top of the inner tube is threadedly connected to the bottom of the pressure relief mechanism. The outer side of the bottom of the inner tube is provided with threads. A second sealing washer is sleeved and installed on the bottom of the inner tube. The bottom end of the inner tube is threadedly installed on the rotating shaft component by a locking nut through the second sealing washer.

[0011] Through the above structure, when the rotating part rotates, the hydraulic oil inside the inner tube will convert the heat generated between the fixed part and the rotating part, thereby reducing the heat generated by the rotation of the fixed part and the rotating part, avoiding a large amount of heat generated during rotation that cannot be discharged in time, resulting in an increase in the temperature at the connection between the rotating shaft and the double fly fork, an increase in resistance, hindering the high-speed rotation of the double fly fork, and being easily damaged due to clamping the rotating shaft, affecting the service life of the device.

[0012] Preferably, a fitting clearance is provided between the rotating shaft component and the inner tube. An oil outlet channel is opened on one side of the bottom end of the rotating shaft component. The oil outlet channel is communicated with the fitting clearance. An oil inlet channel is opened on one side of the top end of the rotating shaft component. The oil inlet channel is communicated with the fitting clearance.

[0013] Through the above structure, it is convenient to perform flow replacement when the hydraulic oil temperature is too high.

[0014] Preferably, the rotating part further includes a fixed cylinder connected to the housing. A first oil outlet end and a connecting pipe are fixedly connected to the outer side of the fixed cylinder. A second oil outlet end is fixedly installed at one end of the connecting pipe away from the rotating shaft component. A first recovery ring groove, a second recovery ring groove, a third recovery ring groove and an oil inlet cavity are arranged inside the fixed cylinder from top to bottom in sequence. A connecting pipe is fixedly connected to one side of the first recovery ring groove and the third recovery ring groove. The connecting pipe is communicated with the first recovery ring groove and the third recovery ring groove;

[0015] Preferably, a first oil outlet end is fixedly connected to one side of the second recovery ring groove away from the connecting pipe. The first oil outlet end is communicated with the second recovery ring groove. The second recovery ring groove is communicated with the fitting clearance. An oil inlet port is fixedly connected to one side of the oil inlet cavity. The bottom end of the inner tube is located inside the oil inlet cavity;

[0016] Preferably, an oil seal, a retaining ring and a metal bushing are installed on the outer side of the bottom of the rotating shaft component. The retaining ring is located between the oil seal and the metal bushing. The oil seal, the retaining ring and the metal bushing are all located above the first recovery ring groove. The oil seal, the retaining ring and the metal bushing are all fixedly installed on the inner wall of the top of the fixed cylinder. A third bearing and a third sealing washer are fixedly installed on the inner wall of the bottom of the fixed cylinder. The third bearing is located between the third recovery ring groove and the third sealing washer.

[0017] Through the above structure, the hydraulic oil is input through the oil inlet port and enters the interior of the oil inlet chamber and the interior of the inner tube in turn. At the same time, part of the hydraulic oil passes through the third bearing and further leaks into the third recovery ring groove through the tiny gap at the boundary between the rotating shaft component and the fixed cylinder. The leaked oil is collected in the connecting pipe, discharged from the second oil outlet end, and returned to the oil tank (not shown). In this way, the second recovery ring groove serves as a neutral non-pressure area between the hydraulic pressures of the first recovery ring groove and the third recovery ring groove, and plays a shielding role, that is, the same sealing effect as when there is an oil seal can be obtained. At the same time, since there is no oil seal, the oil seal is pressed by the oil pressure of the leaking oil, and the friction resistance will not increase. Therefore, the friction resistance is suppressed to a small value, which is suitable for high-speed rotation of the rotating shaft component and the fixed cylinder, thereby improving the service life of the device.

[0018] Preferably, the pressure relief mechanism includes a connecting sleeve, which is fixedly mounted on the top of the rotating shaft component, a pressure relief chamber is provided inside the connecting sleeve, a piston is slidably mounted inside the pressure relief chamber, a spring is fixedly mounted on the top of the piston, the top of the spring is fixedly mounted on the top surface of the inner wall of the pressure relief chamber, the pressure relief chamber is connected to the inner tube, the oil inlet channel is connected to the pressure relief chamber, a limiting ring is fixedly mounted on the outer side of the bottom of the connecting sleeve, and the limiting ring is located below the first bearing.

[0019] With the above structure, when the oil temperature in the inner tube is too high, the hydraulic oil is input through the oil inlet port and enters the oil inlet chamber and the inner tube in sequence. When the hydraulic pressure is higher than the pressure of the spring on the pressure relief mechanism, the hydraulic oil enters the pressure relief chamber and pushes the piston upward, compressing the spring. The excess hydraulic oil enters the fitting gap through the oil inlet channel, and then enters the second recovery ring groove through the oil outlet channel through the oil inlet channel, and flows out through the first oil outlet end to release the pressure, thereby avoiding the situation where the rotary joint is damaged due to overheating of the oil temperature due to untimely oil change.

[0020] At the same time, the tension of the hydraulic oil in the inner tube is kept stable, which prevents the oil seal from being damaged by holding the rotating shaft parts tightly, thus shortening the service life of the rotary joint.

[0021] Preferably, an electric push rod for adjusting the distance between the two positioning blocks is fixedly provided between the fixing portion and the positioning block.

[0022] The above structure facilitates positioning of rotors of different sizes, thereby improving the applicability of the device.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. Through the setting of the inner tube, when the rotating part rotates, the hydraulic oil inside the inner tube will convert the heat generated between the fixed part and the rotating part, thereby reducing the heat generated by the rotation of the fixed part and the rotating part, avoiding a large amount of heat generated during rotation that cannot be discharged in time, resulting in an increase in the temperature at the connection between the rotating shaft and the double fly fork arms, an increase in resistance, hindering the high-speed rotation of the double fly fork arms, and being easily damaged due to clamping the rotating shaft, affecting the service life of the device.

[0025] 2. Through the setting of the pressure relief mechanism, when the oil temperature inside the inner tube is too high, the hydraulic oil is input through the oil inlet port and sequentially enters the inside of the oil inlet chamber and the inside of the inner tube. When the hydraulic pressure is higher than the pressure of the spring on the pressure relief mechanism, the hydraulic oil enters the inside of the pressure relief chamber and pushes the piston upward, and compresses the spring. The excess hydraulic oil enters the inside of the fitting clearance through the oil inlet channel for pressure relief, avoiding the situation of damage to the rotary joint caused by overheating of the oil temperature due to untimely oil change. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of a motor rotor winding device;

[0027] Figure 2 is a schematic diagram of the overall side view sectional structure of a motor rotor winding device;

[0028] Figure 3 is a schematic diagram of the overall sectional structure of a motor rotor winding device;

[0029] Figure 4 is a schematic diagram of the sectional structure of the rotating shaft component of a motor rotor winding device;

[0030] Figure 5 is an exploded view structure diagram of a motor rotor winding device;

[0031] Figure 6 is a schematic diagram of the inner tube and the rotating shaft component structure of a motor rotor winding device;

[0032] Figure 7 is a schematic diagram of the sectional structure of the pressure relief mechanism of a motor rotor winding device.

[0033] 100, winding mechanism; 110, base; 120, rotary joint; 210, positioning block; 220, double flying fork arms; 1, housing; 2, rotating shaft component; 201, inner tube; 202, mating clearance; 203, oil outlet channel; 204, oil inlet channel; 3, pressure relief mechanism; 301, connecting sleeve; 302, piston; 303, spring; 304, pressure relief chamber; 305, limit ring; 4, mounting plate; 5, first bearing; 501, second bearing; 6, first sealing washer; 7, third bearing; 8, fixed cylinder; 801, first recovery ring groove; 802, second recovery ring groove; 803, third recovery ring groove; 804, oil inlet chamber; 9, oil seal; 10, oil inlet port; 11, first oil outlet end; 12, connecting pipe; 1201, second oil outlet end; 13, second sealing washer; 14, retaining ring; 15, metal bushing; 16, lock nut; 17, third sealing washer. Detailed implementation mode

[0034] To further understand the content of the present invention, the present invention will be described in detail in combination with embodiments. It should be understood that the embodiments are only for explaining the present invention and not for limiting it.

[0035] Embodiment 1

[0036] Please refer to Figures 1-7 , this embodiment provides a motor rotor winding device including a winding mechanism 100. The winding mechanism 100 includes a base 110. The base 110 has an operation recess. Two rotary joints 120 are symmetrically arranged at the inner wall of the operation recess. Both of the two rotary joints 120 have a rotating part and a fixed part. A double flying fork arm 220 for winding is arranged at the rotating part. A positioning block 210 for limiting the rotor is jointly arranged at the fixed parts of the two rotary joints 120.

[0037] In this embodiment, the rotating part includes a housing 1. The inner wall of the housing 1 is provided with a first bearing 5 and a second bearing 501. The fixed part is fixedly installed on the inner rings of the first bearing 5 and the second bearing 501 together. First sealing washers 6 are fixedly installed at both the top and bottom ends of the first bearing 5 and the second bearing 501.

[0038] Through the above structure, the rotational stability of the fixed part in the rotating part is improved.

[0039] In this embodiment, the fixed part includes a rotating shaft component 2. A pressure relief mechanism 3 is fixedly installed at the top of the rotating shaft component 2. A mounting plate 4 is fixedly installed at the top of the pressure relief mechanism 3.

[0040] Through the above structure, it is convenient to replace positioning blocks 201 of different sizes.

[0041] In this embodiment, an inner tube 201 is installed inside the rotating shaft component 2. The inner tube 201 is coaxially arranged with the rotating shaft component 2. The top of the inner tube 201 is threadedly connected to the bottom of the pressure relief mechanism 3. The outer side of the bottom of the inner tube 201 is provided with threads. A second sealing washer 13 is sleeved and installed on the bottom of the inner tube 201. The bottom end of the inner tube 201 is threadedly installed on the rotating shaft component 2 by a lock nut 16 through the second sealing washer 13.

[0042] Through the above structure, when the rotating part rotates, the hydraulic oil inside the inner tube will convert the heat generated between the fixed part and the rotating part, thereby reducing the heat generated by the rotation of the fixed part and the rotating part, avoiding a large amount of heat generated during rotation that cannot be discharged in time, resulting in an increase in the temperature at the connection between the rotating shaft and the double fly fork, an increase in resistance, hindering the high-speed rotation of the double fly fork, and being easily damaged due to clamping the rotating shaft, affecting the service life of the device.

[0043] In this embodiment, a fitting gap 202 is provided between the rotating shaft component 2 and the inner tube 201. An oil outlet channel 203 is opened on one side of the bottom end of the rotating shaft component 2. The oil outlet channel 203 is communicated with the fitting gap 202. An oil inlet channel 204 is opened on one side of the top end of the rotating shaft component 2. The oil inlet channel 204 is communicated with the fitting gap 202.

[0044] Through the above structure, it is convenient to perform flow replacement when the hydraulic oil temperature is too high.

[0045] In this embodiment, the rotating part further includes a fixed cylinder 8 connected to the housing 1. A first oil outlet end 11 and a connecting pipe 12 are fixedly connected to the outer side of the fixed cylinder 8. A second oil outlet end 1201 is fixedly installed at one end of the connecting pipe 12 away from the rotating shaft component 2. A first recovery ring groove 801, a second recovery ring groove 802, a third recovery ring groove 803 and an oil inlet cavity 804 are arranged inside the fixed cylinder 8 from top to bottom in sequence. A connecting pipe 12 is fixedly connected to one side of the first recovery ring groove 801 and the third recovery ring groove 803. The connecting pipe 12 is communicated with the first recovery ring groove 801 and the third recovery ring groove 803;

[0046] A first oil outlet end 11 is fixedly connected to one side of the second recovery ring groove 802 away from the connecting pipe 12. The first oil outlet end 11 is communicated with the second recovery ring groove 802. The second recovery ring groove 802 is communicated with the fitting gap 202. An oil inlet port 10 is fixedly connected to one side of the oil inlet cavity 804. The bottom end of the inner tube 201 is located inside the oil inlet cavity 804;

[0047] An oil seal 9, a retaining ring 14, and a metal bushing 15 are installed on the outer side of the bottom of the rotating shaft member 2. The retaining ring 14 is located between the oil seal 9 and the metal bushing 15. The oil seal 9, the retaining ring 14, and the metal bushing 15 are all located above the first recovery ring groove 801. The oil seal 9, the retaining ring 14, and the metal bushing 15 are all fixedly installed on the inner wall of the top of the fixed cylinder 8. A third bearing 7 and a third sealing washer 17 are fixedly installed on the inner wall of the bottom of the fixed cylinder 8. The third bearing 7 is located between the third recovery ring groove 803 and the third sealing washer 17.

[0048] With the above structure, hydraulic oil is input through the oil inlet port 10 and sequentially enters the inside of the oil inlet chamber 804 and the inside of the inner tube 201. At the same time, part of the hydraulic oil passes through the third bearing 7 and further leaks into the third recovery ring groove 803 through the tiny gap at the boundary between the rotating shaft member 2 and the fixed cylinder 8. The leaked oil is collected in the connecting pipe 12, discharged from the second oil outlet end 1201, and returned to the fuel tank (not shown). In this way, the second recovery ring groove 802 serves as a neutral non-pressure zone between the first recovery ring groove 801 and the third recovery ring groove 803 hydraulically, playing a shielding role, that is, the same sealing effect as when there is an oil seal 9 can be obtained. At the same time, since there is no oil seal 9, the oil seal 9 is not pressed by the oil pressure of the leaked oil, and the situation of increased frictional resistance will not occur. Therefore, the frictional resistance is suppressed to a small value, which is suitable for the high-speed rotation of the rotating shaft member 2 and the fixed cylinder 8, and improves the service life of the device.

[0049] In this embodiment, the pressure relief mechanism 3 includes a connecting sleeve 301. The connecting sleeve 301 is fixedly installed on the top of the rotating shaft member 2. A pressure relief chamber 304 is provided inside the connecting sleeve 301. A piston 302 is slidably installed inside the pressure relief chamber 304. A spring 303 is fixedly installed on the top of the piston 302. The top of the spring 303 is fixedly installed on the top inner wall surface of the pressure relief chamber 304. The pressure relief chamber 304 is communicated with the inner tube 201. The oil inlet passage 204 is communicated with the pressure relief chamber 304. A limiting ring 305 is fixedly installed on the outer side of the bottom of the connecting sleeve 301. The limiting ring 305 is located below the first bearing 5.

[0050] With the above structure, when the oil temperature inside the inner tube is too high, hydraulic oil is input through the oil inlet port 10 and sequentially enters the inside of the oil inlet chamber 804 and the inside of the inner tube 201. When the hydraulic pressure is higher than the pressure of the spring 303 on the pressure relief mechanism 3, the hydraulic oil enters the inside of the pressure relief chamber 304, pushes the piston 302 to move upward, and compresses the spring 303. The excess hydraulic oil enters the inside of the fitting gap 202 through the oil inlet passage 204, and then the hydraulic oil enters the inside of the second recovery ring groove 802 through the oil inlet passage 204 and the oil outlet passage 203, and flows out through the first oil outlet end 11 for pressure relief, avoiding the situation that the rotary joint is damaged due to overheating of the oil temperature caused by untimely oil change;

[0051] Meanwhile, the tension of the hydraulic oil in the inner tube 201 is kept stable, avoiding the situation that the oil seal 9 is easily damaged due to tightly holding the rotating shaft component 2, which affects the service life of the rotary joint.

[0052] In this embodiment, an electric push rod for adjusting the distance between the two positioning blocks 210 is fixedly arranged between the fixing part and the positioning block 210.

[0053] Through the above structure, it is convenient to limit rotors of different sizes, improving the application range of the device.

[0054] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application based on one or several embodiments provided by the present application to obtain other embodiments, and these embodiments do not exceed the protection scope of the present application.

[0055] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as within the protection scope of this template.

[0056] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, as well as a specific orientation structure and operation. Therefore, it cannot be understood as a limitation to the present invention. In addition, "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0057] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0058] The above has described in detail an embodiment of the present invention, but the above content is only a preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention shall still fall within the scope covered by the patent of the present invention.

Claims

1. A motor rotor winding device, characterized in that, It includes a winding mechanism (100). The winding mechanism (100) includes a base (110). The base (110) has an operation recess. At the inner wall of the operation recess, two rotary joints (120) are symmetrically arranged. Each of the two rotary joints (120) has a rotating part and a fixed part. At the rotating part, a double flying fork arm (220) for winding is provided. The fixed parts of the two rotary joints (120) are jointly provided with a positioning block (210) for limiting the rotor. The fixed part includes a rotating shaft component (2). At the top of the rotating shaft component (2), a pressure relief mechanism (3) is fixedly installed. At the top of the pressure relief mechanism (3), a mounting plate (4) is fixedly installed. The pressure relief mechanism (3) includes a connecting sleeve (301). The connecting sleeve (301) is fixedly installed on the top of the rotating shaft component (2). Inside the connecting sleeve (301), a pressure relief cavity (304) is provided. Inside the pressure relief cavity (304), a piston (302) is slidably installed. At the top of the piston (302), a spring (303) is fixedly installed. The top of the spring (303) is fixedly installed on the top inner wall surface of the pressure relief cavity (304). The pressure relief cavity (304) is communicated with an inner tube (201). An oil inlet passage (204) is communicated with the pressure relief cavity (304). On the outer side of the bottom of the connecting sleeve (301), a limiting ring (305) is fixedly installed. The limiting ring (305) is located below the first bearing (5). Inside the rotating shaft component (2), an inner tube (201) is installed. The inner tube (201) is coaxially arranged with the rotating shaft component (2). The top of the inner tube (201) is threadedly connected to the bottom of the pressure relief mechanism (3). On the outer side of the bottom of the inner tube (201), threads are provided. On the bottom of the inner tube (201), a second sealing washer (13) is sleeved and installed. The bottom end of the inner tube (201) is threadedly installed on the rotating shaft component (2) by a lock nut (16) through the second sealing washer (13). A fitting clearance (202) is provided between the rotating shaft component (2) and the inner tube (201). On one side of the bottom end of the rotating shaft component (2), an oil outlet passage (203) is opened. The oil outlet passage (203) is communicated with the fitting clearance (202). On one side of the top end of the rotating shaft component (2), an oil inlet passage (204) is opened. The oil inlet passage (204) is communicated with the fitting clearance (202).

2. A motor rotor winding device according to claim 1, characterized in that: The rotating part includes a housing (1). Inside the housing (1), a first bearing (5) and a second bearing (501) are provided. On the inner rings of the first bearing (5) and the second bearing (501), the fixed part is jointly fixedly installed. On the top and bottom ends of the first bearing (5) and the second bearing (501), first sealing washers (6) are fixedly installed.

3. A motor rotor winding device according to claim 2, characterized in that: The rotating part further includes a fixed cylinder (8) connected to the housing (1). A first oil outlet end (11) and a connecting pipe (12) are fixedly connected to the outer side of the fixed cylinder (8). A second oil outlet end (1201) is fixedly installed at one end of the connecting pipe (12) far from the rotating shaft component (2). A first recovery ring groove (801), a second recovery ring groove (802), a third recovery ring groove (803) and an oil inlet chamber (804) are arranged inside the fixed cylinder (8). The first recovery ring groove (801), the second recovery ring groove (802), the third recovery ring groove (803) and the oil inlet chamber (804) are arranged in sequence from top to bottom. A connecting pipe (12) is fixedly connected to one side of the first recovery ring groove (801) and the third recovery ring groove (803). The connecting pipe (12) is communicated with the first recovery ring groove (801) and the third recovery ring groove (803).

4. A motor rotor winding device according to claim 3, characterized in that: A first oil outlet end (11) is fixedly connected to one side of the second recovery ring groove (802) far from the connecting pipe (12). The first oil outlet end (11) is communicated with the second recovery ring groove (do2). The second recovery ring groove (802) is communicated with the mating clearance (202). An oil inlet port (10) is fixedly connected to one side of the oil inlet chamber (804). The bottom end of the inner pipe (201) is located inside the oil inlet chamber (804).

5. A motor rotor winding device according to claim 3, characterized in that: An oil seal (9), a retaining ring (14) and a metal bushing (15) are installed on the outer side of the bottom of the rotating shaft component (2). The retaining ring (14) is located between the oil seal (9) and the metal bushing (15). The oil seal (9), the retaining ring (14) and the metal bushing (15) are all located above the first recovery ring groove (801). The oil seal (9), the retaining ring (14) and the metal bushing (15) are all fixedly installed on the top inner wall of the fixed cylinder (8). A third bearing (7) and a third sealing washer (17) are fixedly installed on the bottom inner wall of the fixed cylinder (8). The third bearing (7) is located between the third recovery ring groove (803) and the third sealing washer (17).

6. The motor rotor winding device according to claim 1, characterized in that: An electric push rod for adjusting the distance between the two positioning blocks (210) is fixedly arranged between the fixing part and the positioning block (210).

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