Motor shaft assembly, rotor mechanism and motor

Abstract

The present invention discloses a motor shaft assembly, a rotor mechanism and a motor, relating to the technical field of motors. It includes a rotating shaft assembly, and the rotating shaft assembly includes a rotating shaft. A liquid storage cavity for storing coolant is provided inside the rotating shaft. S-shaped inner buffer plates are fixedly connected to the inner walls on both sides of the liquid storage cavity. Main transmission holes are provided on the outer wall of the liquid storage cavity; First, the coolant in the liquid storage cavity can initially dissipate heat inside the rotating shaft. Then, the heat conduction tube can dissipate heat from the surface of the rotating shaft for the second time. Finally, when the temperature inside the motor rises again, the airbag will expand due to heat and push the inner push block to move to the right. When the inner push block moves to the right, it can transport the thermal conductive grease to the surface of the heat conduction tube. The thermal conductive grease will automatically adhere to the surface of the heat conduction tube along with the rotation of the rotating shaft. Finally, a smoothing plate is used to trim the thickness of the thermal conductive grease on the surface of the heat conduction tube and keep the thermal conductive grease evenly applied, so as to greatly improve the heat dissipation efficiency of the rotating shaft itself.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and specifically to a motor shaft assembly, a rotor mechanism and a motor. Background Art

[0002] A motor is an electromagnetic device that realizes the conversion or transmission of electrical energy based on the law of electromagnetic induction. It usually includes a stator, a rotor wrapped outside the stator, and a housing wrapped outside the rotor. There are many types of motors, and permanent magnet motors are a common type. One reason for the power limitation of permanent magnet motors is that the motor heating is prone to getting out of control, and the enameled wire and permanent magnet are prone to overheating, resulting in the inability to improve the motor efficiency.

[0003] Currently, for existing permanent magnet motors, ventilation holes are usually opened on the housing to achieve the circulation of internal and external gases, thereby achieving a cooling effect. However, the rotor is usually placed inside the stator and is far from the ventilation holes on the housing. Even if the gas between the inner side and the outer side of the housing circulates, the cooling effect on the rotor is poor. Therefore, it cannot achieve a good overall cooling effect, and it will still make the operation of the permanent magnet motor unstable. Moreover, for one end of the existing permanent magnet motor where a cooling fan is provided, the bearing connected to the inner shaft is arranged inside the wind cover. When lubricating the shaft, the wind cover needs to be disassembled, and the wind cover needs to be reinstalled after lubrication. This makes it inconvenient to lubricate the bearing inside the wind cover, and this operation is too time-consuming and laborious, greatly reducing the user experience. Summary of the Invention

[0004] To solve the defects existing in the prior art, the present invention provides a motor shaft assembly, a rotor mechanism and a motor.

[0005] To solve the above technical problems, the present invention provides the following technical solutions:

[0006] A motor shaft assembly of the present invention includes a shaft assembly. The shaft assembly includes a shaft. A liquid storage cavity for storing coolant is opened inside the shaft. S-shaped inner buffer plates are fixedly connected to the inner walls on both sides of the liquid storage cavity. A main delivery hole is opened on the outer wall of the liquid storage cavity, and a through hole is opened on the upper surface of the inner buffer plate.

[0007] As a preferred technical solution of the present invention, bearings are fixedly sleeved on the outer walls at both ends of the shaft, and a cooling fan is fixedly sleeved on the outer wall of the shaft at its rightmost end.

[0008] As a preferred technical solution of the present invention, a heat conduction tube is fixedly sleeved on the surface of the shaft and inside the bearing.

[0009] As a preferred technical solution of the present invention, an assembly bracket is fixedly connected to the bottom of each outer ring of the bearings on the opposite side, and a storage bottle is fixedly connected to the end of each assembly bracket away from the bearing. An airbag is fixedly connected to the inner wall of each storage bottle near the assembly bracket, and an inner push block is fixedly connected to one end of each of the two airbags close to each other.

[0010] As a preferred technical solution of the present invention, an arc-shaped feeding tray is communicated with the upper surface of one end of each of the two storage bottles close to each other, and a feeding hole is opened in the middle position of the upper surface of each feeding tray.

[0011] As a preferred technical solution of the present invention, two leveling plates are fixedly connected to the front and back of each feeding tray. A liquid inlet hole is opened on the right end face of the rotating shaft, and a sealing plug is threadedly connected to the inner cavity at the right end of the liquid inlet hole.

[0012] A rotor mechanism includes a rotor assembly. The rotor assembly includes a rotor. The rotor is fixedly sleeved on the outer wall of the middle section of the rotating shaft. A cooling cavity is opened inside the rotor, and a drainage hole is opened on the lower surface of the inner cavity of the cooling cavity.

[0013] As a preferred technical solution of the present invention, a rotor fan is fixedly sleeved on the outer wall of both ends of the rotating shaft, and the opposite sides of the rotor fans are respectively fixedly connected to the two side faces of the rotor. Permanent magnets are embedded inside the middle positions of the opposite sides of the two rotor fans, and a magnetic isolation ring is arranged at the middle position of the opposite sides of the two rotor fans.

[0014] A motor includes a housing. The housing is installed outside two bearings. A wind hood is fixedly installed at the right end of the housing. Three heat dissipation plates are fixedly connected to the inner wall of the housing. Stators are fixedly connected to one end of the three heat dissipation plates facing each other. Two assembly bases are fixedly connected to the front and back of the bottom of the housing. A lubrication component is embedded in the top of the right side face of the housing.

[0015] As a preferred technical solution of the present invention, the lubrication component includes an auxiliary hole. The auxiliary hole is opened on the upper surface of the right end of the housing. A storage oil tank is embedded in the top of the right side face of the housing. An oil inlet is embedded on the left side of the upper surface of the storage oil tank. Two limiting tubes are embedded on both sides of the bottom surface of the inner cavity of the storage oil tank. An oil delivery hole is opened at the bottom of one end of the two limiting tubes facing each other. A fitting rod is inserted into the inner cavity of each limiting tube, and a cotton brush is fixedly connected to one end of each fitting rod close to the right bearing.

[0016] A transfer hole connected to the oil delivery hole and the inner cavity of the cotton brush is provided inside each positioning rod, and a plurality of oil outlet holes are provided in the middle position of one side of each cotton brush close to the bearing. The upper ends of the two positioning rods are fixedly connected with an inner connecting plate, and a return spring is fixedly connected between the lower surface of the inner connecting plate and the bottom surface of the inner cavity of the oil storage tank, and the upper surface of the left end of the inner connecting plate is fixedly connected with an inner follower tube, a cotton core is embedded in the inner follower tube, and a finger plate is fixedly sleeved on the outer wall of the inner follower tube at its upper end.

[0017] The beneficial effects of the present invention are:

[0018] 1. This type of motor shaft assembly, through the set shaft assembly, first the coolant in the liquid storage chamber can perform preliminary heat dissipation on the inside of the shaft, then the heat pipe can perform secondary heat dissipation on the surface of the shaft, and finally when the temperature inside the motor rises again, the airbag will expand due to the heat and push the inner push block to move to the right. The inner push block moves to the right and can transport the thermal grease to the surface of the heat pipe. The thermal grease will automatically adhere to the surface of the heat pipe as the shaft rotates. Finally, the thickness of the thermal grease on the surface of the heat pipe is trimmed by a smearing plate, and the thermal grease is kept evenly applied, so that the heat dissipation efficiency of the shaft itself is greatly improved, which further improves the service life of the motor.

[0019] 2. This rotor mechanism, through the set rotor assembly, firstly, the dredging hole can transmit the coolant in the liquid storage chamber to the inside of the cooling chamber through the main delivery hole, and the array combination of the multi-layer cooling chamber can cause the coolant to continuously flow through the inside of each cooling chamber when the rotor rotates, and at the same time realize the continuous cooling of the inside of the rotor by the coolant, and then the rotor fan can self-dissipate the heat on its surface when the rotor rotates, and finally the heat dissipation holes can cause the airflow in the motor to pass through and take away the heat from the outside of the rotor, so that the heat dissipation rate of the entire rotor is greatly improved by synchronously cooling the inside and outside of the rotor. At the same time, compared with the existing natural heat dissipation method, it is more efficient and practical.

[0020] 3. This type of motor, through the provision of a heat sink and a heat sink fan, firstly, the heat sink can contact the surface of the stator in multiple directions, so that the stator can be effectively initially cooled. Then the heat sink fan will rotate along with the rotation of the shaft. The rotation of the heat sink fan can efficiently extract the heat inside the motor, thus ensuring the stable operation of the motor itself and greatly improving the user experience.

[0021] 4. For this kind of motor, through the lubrication component set, first pressing the finger board can drive the inner follower tube and the inner connecting plate to move downward simultaneously. When the inner connecting plate moves downward, it can drive the two positioning rods and the two cotton brushes to move downward simultaneously. When the transfer holes in the two positioning rods are aligned with the oil delivery holes, at this time, the oil delivery holes can transfer the lubricating oil in the storage tank to the inside of the cotton brushes through the transfer holes. Then, the oil outlet holes transfer the lubricating oil to both side surfaces of the bearing. Then, through the rotation of the rotating shaft, it can drive the inner ring of the bearing and the internal balls to rotate. At this time, the cotton brushes can smear the lubricating oil on the surface of the bearing, thus quickly completing the automatic oiling of the bearing. And this oiling method saves time and effort. Finally, when the finger board is released, the return spring will push the inner connecting plate and the two positioning rods to move upward simultaneously. When the two positioning rods move upward, they can drive the two cotton brushes to move upward to the initial position, so as to ensure that the cotton brushes are separated from the surface of the bearing, effectively avoiding the situation that the cotton brushes continuously contact the bearing and cause the lubricating oil to dry quickly, thereby improving the utilization rate of the lubricating oil. At the same time, it further improves the service life of the motor. Description of the Drawings

[0022] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0023] Figure 1 is the structural schematic diagram of the present invention;

[0024] Figure 2 is the exploded view of the partial structure of the rotating shaft assembly of the present invention;

[0025] Figure 3 is the structural schematic diagram of the rotor assembly of the present invention;

[0026] Figure 4 is the Figure 3 cross-sectional view of the present invention;

[0027] Figure 5 is the Figure 3 three-dimensional view of the present invention;

[0028] Figure 6 is the Figure 5 structural schematic diagram of the right-side view of the present invention;

[0029] Figure 7 is the side cross-sectional view of the rotor and the rotating shaft of the present invention;

[0030] Figure 8 is the side cross-sectional view of the material storage bottle and the material delivery tray of the present invention;

[0031] Figure 9 is the exploded view of the partial structure of the rotor assembly of the present invention;

[0032] Figure 10 is the enlarged view of part A in Figure 5 the present invention;

[0033] Figure 11 is the enlarged view of part B in Figure 7 the present invention;

[0034] Figure 12 is the structural schematic diagram of the motor of the present invention;

[0035] Figure 13 is the front sectional view of the motor of the present invention;

[0036] Figure 14 is the Figure 13 three-dimensional view of the present invention;

[0037] Figure 15 is the enlarged view of part C in Figure 14 the present invention;

[0038] Figure 16 is the enlarged view of part D in Figure 14 the present invention;

[0039] Figure 17 is the enlarged view of part E in Figure 14 the present invention.

[0040] In the figure: 1. Rotating shaft assembly; 101. Rotating shaft; 102. Liquid storage cavity; 103. Inner buffer plate; 104. Main delivery hole; 105. Through hole; 106. Bearing; 107. Cooling fan; 108. Heat conduction tube; 109. Assembly bracket; 110. Storage bottle; 111. Airbag; 112. Inner push block; 113. Feeding tray; 114. Feeding hole; 115. Smoothing plate; 2. Rotor assembly; 201. Rotor; 202. Cooling cavity; 203. Through hole; 204. Rotor fan; 205. Permanent magnet; 206. Magnetic isolation ring; 207. Cooling hole; 3. Machine shell; 4. Wind hood; 5. Cooling disc; 6. Stator; 7. Assembly base; 8. Lubrication assembly; 801. Auxiliary hole; 802. Oil storage tank; 803. Oil inlet; 804. Limiting tube; 805. Oil delivery hole; 806. Positioning rod; 807. Cotton brush; 808. Transfer hole; 809. Oil outlet; 810. Inner connecting plate; 811. Return spring; 812. Inner secondary tube; 813. Cotton core; 814. Finger plate. Detailed implementation manners

[0041] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustration and explanation of the present invention, and are not intended to limit the present invention.

[0042] Embodiment: As shown in Figure 1-17As shown in the figure, a motor shaft assembly of the present invention includes a rotating shaft assembly 1. The rotating shaft assembly 1 includes a rotating shaft 101. A liquid storage cavity 102 for storing coolant is provided inside the rotating shaft 101. S-shaped inner buffer plates 103 are fixedly connected to the inner walls on both sides of the liquid storage cavity 102. The inner buffer plates 103 can stir the coolant along with the rotation of the rotating shaft 101, and at the same time can conveniently push the coolant into the internal cooling cavity 202, so as to effectively improve the utilization rate of the coolant. A main delivery hole 104 is provided on the outer wall of the liquid storage cavity 102, and a through hole 105 is provided on the upper surface of the inner buffer plate 103; Bearings 106 are fixedly sleeved on the outer walls at both ends of the rotating shaft 101, and a cooling fan 107 is fixedly sleeved on the outer wall of the rotating shaft 101 at its rightmost end; A heat conduction tube 108 is fixedly sleeved on the surface of the rotating shaft 101 inside the bearing 106; Assembly brackets 109 are fixedly connected to the bottoms of the outer rings of the bearings 106 on the opposite sides. A storage bottle 110 is fixedly connected to one end of each assembly bracket 109 away from the bearing 106. An airbag 111 is fixedly connected to the inner wall of each storage bottle 110 near the assembly bracket 109. Inner push blocks 112 are fixedly connected to one ends of the two airbags 111 close to each other; Arc-shaped feeding trays 113 are communicated with the upper surfaces of the two storage bottles 110 close to each other. Feeding holes 114 are provided in the middle positions on the upper surfaces of each feeding tray 113; Two smoothing plates 115 are fixedly connected to the front and back of each feeding tray 113. A liquid inlet hole 116 is provided on the right end face of the rotating shaft 101, and a sealing plug 117 is threadedly connected to the inner cavity at the right end of the liquid inlet hole 116.

[0043] Among them, through the set rotating shaft assembly 1, first, the coolant in the liquid storage cavity 102 can initially dissipate heat from the inside of the rotating shaft 101, and then the heat conduction tube 108 can dissipate heat from the surface of the rotating shaft 101 for the second time. Finally, when the temperature inside the motor rises again, the airbag 111 will expand due to heat and push the inner push block 112 to move to the right. The rightward movement of the inner push block 112 can push the heat-conducting silicone grease in the storage bottle 110 upward into the internal part of the feeding tray 113. At this time, the feeding hole 114 conveys the heat-conducting silicone grease to the surface of the heat conduction tube 108. The heat-conducting silicone grease will automatically adhere to the surface of the heat conduction tube 108 along with the rotation of the rotating shaft 101. Finally, the smoothing plate 115 is used to trim the thickness of the heat-conducting silicone grease on the surface of the heat conduction tube 108 and keep the heat-conducting silicone grease evenly applied, so as to greatly improve the heat dissipation efficiency of the rotating shaft 101 itself, and further improve the service life of the motor.

[0044] A rotor mechanism includes a rotor assembly 2, and the rotor assembly 2 includes a rotor 201. The rotor 201 is fixedly sleeved on the outer wall of the middle section of a rotating shaft 101. A cooling cavity 202 is formed inside the rotor 201, and through holes 203 are formed in the lower surface of the inner cavity of the cooling cavity 202; Rotor fans 204 are fixedly sleeved on the outer walls at both ends of the rotating shaft 101, and opposite sides of the rotor fans 204 are fixedly connected to both side surfaces of the rotor 201 respectively. Permanent magnets 205 are embedded in the inner sides of the mutually remote sides of the rotor fans 204, and magnetic isolation rings 206 are arranged at the middle positions of the mutually remote sides of the two rotor fans 204.

[0045] Among them, through the provided rotor assembly 2, firstly, the through holes 203 can transmit the coolant in the liquid storage cavity 102 to the inside of the cooling cavity 202 through the main transmission hole 104. The array combination of multiple cooling cavities 202 can cause the coolant to continuously flow through the inside of each cooling cavity 202 when the rotor 201 rotates, and at the same time, realize the continuous cooling of the inside of the rotor 201 by the coolant. Then, the rotor fans 204 can perform self-cooling on the surface of the rotor 201 when the rotor 201 rotates. Finally, the heat dissipation holes 207 can cause the air flow in the motor to pass through and take away the heat in the outer range of the rotor 201. In this way, by synchronously cooling the inner and outer sides of the rotor 201, the heat dissipation rate of the entire rotor 201 is greatly improved. At the same time, compared with the existing natural heat dissipation method, it is more efficient and practical.

[0046] A motor includes a motor housing 3, and the motor housing 3 is installed outside two bearings 106. A wind hood 4 is fixedly installed at the right end of the motor housing 3; Three heat dissipation discs 5 are fixedly connected to the inner wall of the motor housing 3, and stators 6 are fixedly connected to the opposite ends of the three heat dissipation discs 5 respectively. Two assembly bases 7 are fixedly connected to the front and rear of the bottom of the motor housing 3, and a lubrication assembly 8 is embedded in the top of the right side surface of the motor housing 3.

[0047] The lubrication assembly 8 includes an auxiliary hole 801 which is opened on the upper surface of the right end of the housing 3. At the top of the right side surface of the housing 3, an oil storage tank 802 is embedded. On the left side of the upper surface of the oil storage tank 802, an oil inlet 803 is embedded. On both sides of the bottom surface of the inner cavity of the oil storage tank 802, a limiting tube 804 is embedded. At the bottom of the opposite sides of the two limiting tubes 804, an oil delivery hole 805 is opened. In the inner cavity of each limiting tube 804, an appropriate-position rod 806 is inserted. At one end of each appropriate-position rod 806 close to the bearing 106 on the right side, a cotton brush 807 is fixedly connected. In the interior of each appropriate-position rod 806, a transfer hole 808 communicating with the oil delivery hole 805 and the inner cavity of the cotton brush 807 is opened. At the middle position of the side of each cotton brush 807 close to the bearing 106, a plurality of oil outlet holes 809 are opened. At the upper ends of the two appropriate-position rods 806, an inner connecting plate 810 is fixedly connected. Between the lower surface of the inner connecting plate 810 and the bottom surface of the inner cavity of the oil storage tank 802, a return spring 811 is fixedly connected. On the upper surface of the left end of the inner connecting plate 810, an inner follower tube 812 is fixedly connected. Inside the inner follower tube 812, a cotton core 813 is embedded. At the outer wall of the upper end of the inner follower tube 812, a finger plate 814 is fixedly sleeved.

[0048] Among them: By setting the lubrication assembly 8, first, pressing the finger plate 814 can drive the inner follower tube 812 and the inner connecting plate 810 to move downward simultaneously. The downward movement of the inner connecting plate 810 can drive the two appropriate-position rods 806 and the two cotton brushes 807 to move downward simultaneously. When the transfer holes 808 in the two appropriate-position rods 806 are flush with the oil delivery holes 805, at this time, the oil delivery holes 805 can transfer the lubricating oil in the oil storage tank 802 to the inside of the cotton brushes 807 through the transfer holes 808. Then, the oil outlet holes 809 transfer the lubricating oil to both side surfaces of the bearing 106. Then, the rotation of the rotating shaft 101 can drive the inner ring and the internal balls in the bearing 106 to rotate. At this time, the cotton brush 807 can coat the surface of the bearing 106 with the lubricating oil. In this way, the automatic oiling of the bearing 106 is quickly completed, and this oiling method is time-saving and labor-saving. After the oiling is completed, releasing the finger plate 814, the return spring 811 will push the inner connecting plate 810 and the two appropriate-position rods 806 to move upward simultaneously. The upward movement of the two appropriate-position rods 806 can drive the two cotton brushes 807 to move upward to the initial position, so as to ensure that the cotton brushes 807 are separated from the surface of the bearing 106. Finally, the cotton core 813 can monitor the remaining amount of the lubricating oil in the oil storage tank 802 in real time. When the user touches the exposed end of the cotton core 813 with a finger and there is no lubricating oil on the finger surface, it indicates that there is a lack of lubricating oil in the oil storage tank 802. At this time, the lubricating oil is conveyed into the oil storage tank 802 through the oil inlet 803, which can facilitate the user to supplement the lubricating oil in time, enabling the lubrication assembly 8 to be continuously used and greatly improving the practicability of the motor.

[0049] Among them, through the provision of the heat sink 5 and the heat sink fan 107, firstly, the heat sink 5 can contact the surface of the stator 6 in multiple directions, so that the stator 6 can be effectively initially cooled, and then the heat sink fan 107 will rotate along with the rotation of the rotating shaft 101. The rotation of the heat sink fan 107 can efficiently extract the heat inside the motor, so as to ensure the stable operation of the motor itself.

[0050] During operation, the shaft 101 dissipates heat: first, the coolant in the liquid storage chamber 102 can dissipate the initial heat inside the shaft 101, and then the heat pipe 108 can dissipate the secondary heat on the surface of the shaft 101. Finally, when the temperature inside the motor rises again, the air bag 111 will expand due to the heat and push the inner push block 112 to move to the right. The inner push block 112 moves to the right and can push the thermal grease in the storage bottle 110 upward into the inside of the feed tray 113. At this time, the feed hole 114 transports the thermal grease to the surface of the heat pipe 108. The thermal grease will automatically adhere to the surface of the heat pipe 108 as the shaft 101 rotates. Finally, the thickness of the thermal grease on the surface of the heat pipe 108 is trimmed by the smearing plate 115, and the thermal grease is kept evenly applied, so that the heat dissipation efficiency of the shaft 101 itself is greatly improved.

[0051] Heat dissipation of rotor 201: First, the dredging hole 203 can transfer the coolant in the liquid storage chamber 102 to the inside of the cooling chamber 202 through the main delivery hole 104. The array combination of the multi-layer cooling chamber 202 can cause the coolant to continuously flow through the inside of each cooling chamber 202 when the rotor 201 rotates, and at the same time, the coolant continuously cools the inside of the rotor 201. Then, the rotor fan 204 can dissipate heat on the surface of the rotor 201 when the rotor 201 rotates. Finally, the heat dissipation hole 207 can cause the airflow in the motor to pass through and take away the heat from the outside of the rotor 201. In this way, the heat dissipation rate of the entire rotor 201 is greatly improved by synchronously cooling the inside and outside of the rotor 201.

[0052] Motor heat dissipation: First, the heat dissipation plate 5 can contact the surface of the stator 6 in multiple directions, so that the stator 6 can be effectively initially cooled. Then, the heat dissipation fan 107 rotates along with the rotation of the rotating shaft 101. The rotation of the heat dissipation fan 107 can efficiently extract the heat inside the motor, so as to ensure the stable operation of the motor itself.

[0053] Lubricating the bearing 106: First, pressing the finger board 814 can drive the inner follower tube 812 and the inner connecting plate 810 to move downward simultaneously. The downward movement of the inner connecting plate 810 can drive the two positioning rods 806 and the two cotton brushes 807 to move downward simultaneously. When the transfer holes 808 in the two positioning rods 806 are flush with the oil delivery holes 805, the oil delivery holes 805 can transfer the lubricating oil in the oil storage tank 802 to the inside of the cotton brush 807 through the transfer holes 808. Then, the oil outlet holes 809 transfer the lubricating oil to both side surfaces of the bearing 106. The rotation of the rotating shaft 101 can drive the inner ring of the bearing 106 and the internal balls to rotate. At this time, the cotton brush 807 can coat the lubricating oil on the surface of the bearing 106, thus quickly completing the automatic lubrication of the bearing 106. Moreover, this lubrication method saves time and effort. After the lubrication is completed, releasing the finger board 814, the return spring 811 will push the inner connecting plate 810 and the two positioning rods 806 to move upward simultaneously. The upward movement of the two positioning rods 806 can drive the two cotton brushes 807 to move upward to the initial position, so as to ensure that the cotton brush 807 is separated from the surface of the bearing 106. Finally, the cotton core 813 can monitor the remaining amount of the lubricating oil in the oil storage tank 802 in real time. When the user touches the exposed end of the cotton core 813 with a finger and there is no lubricating oil on the finger surface, it indicates that there is a lack of lubricating oil in the oil storage tank 802. At this time, the lubricating oil is conveyed into the oil storage tank 802 through the oil inlet 803, which can facilitate the user to replenish the lubricating oil in time and enable the lubrication assembly 8 to be used continuously.

[0054] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A motor shaft assembly, comprising a rotating shaft assembly (1), characterized in that: The rotating shaft assembly (1) comprises a rotating shaft (101), the rotating shaft (101) is provided with a liquid storage chamber (102) for storing cooling liquid inside, the inner walls on both sides of the liquid storage chamber (102) are fixedly connected with S-shaped inner slow plates (103), the outer wall of the liquid storage chamber (102) is provided with a main delivery hole (104), the upper surface of the inner slow plate (103) is provided with a through hole (105), and the outer walls at both ends of the rotating shaft (101) are fixedly sleeved with a bearing (106); The rotating shaft assembly (1) comprises an assembly bracket (109), an oil storage bottle (110), an airbag (111), an inner push block (112), a feed plate (113), a feed hole (114), a smear plate (115), a liquid inlet hole (116) and a sealing plug (117); the bottom of the bearing (106) located on the opposite side of its outer ring is fixedly connected to an assembly bracket (109); an end of each assembly bracket (109) away from the bearing (106) is fixedly connected to a storage bottle (110); an inner wall of each storage bottle (110) close to the assembly bracket (109) is fixedly connected to an airbag (111); and ends of two airbags (111) close to each other are fixedly connected to an inner push block (112); The upper surfaces of the two storage bottles (110) close to one end of each other are connected to an arc-shaped material feeding tray (113), and each material feeding tray (113) is provided with a material feeding hole (114) at the middle position of its upper surface; Two smear plates (115) are fixedly connected to the front and back of each feed tray (113); a liquid inlet hole (116) is provided on the right end surface of the rotating shaft (101); and a sealing plug (117) is threadedly connected to the inner cavity of the liquid inlet hole (116) at the right end thereof.

2. The motor shaft assembly according to claim 1, characterized in that: A cooling fan (107) is fixedly sleeved on the outer wall of the rotating shaft (101) at the rightmost end thereof.

3. The motor shaft assembly according to claim 2, characterized in that: A heat conduction pipe (108) is fixedly sleeved on the inner side of the bearing (106) and located on the surface of the rotating shaft (101).

4. A rotor mechanism, a motor shaft assembly according to any one of claims 1 to 3, comprising a rotor assembly (2), characterized in that: The rotor assembly (2) comprises a rotor (201), the rotor (201) being fixedly sleeved on the outer wall of the middle section of the rotating shaft (101), a cooling chamber (202) being provided inside the rotor (201), and dredging holes (203) being provided on the lower surface of the inner cavity of the cooling chamber (202).

5. The rotor mechanism according to claim 4, characterized in that: A rotor fan (204) is fixedly sleeved on the outer walls at both ends of the rotating shaft (101), and opposite sides of the rotor fan (204) are respectively fixedly connected to the two side surfaces of the rotor (201), and permanent magnets (205) are embedded in the inner sides of the sides of the rotor fans (204) away from each other, and a magnetic isolation ring (206) is provided in the middle of the sides of the two rotor fans (204) away from each other.

6. A motor, a motor shaft assembly according to any one of claims 1 to 3, comprising a housing (3), characterized in that: The casing (3) is mounted on the outside of the two bearings (106); a fan cover (4) is fixedly mounted on the right end of the casing (3); three heat sinks (5) are fixedly connected to the inner wall of the casing (3); the three heat sinks (5) are fixedly connected to a stator (6) at one end opposite to each other; two assembly bases (7) are fixedly connected to the front and rear sides of the bottom of the casing (3); and a lubrication component (8) is embedded in the top of the right side of the casing (3).

7. The motor according to claim 6, characterized in that The lubrication assembly (8) comprises an auxiliary hole (801), the auxiliary hole (801) is formed on the upper surface of the right end of the casing (3), an oil storage tank (802) is embedded in the top of the right side of the casing (3), an oil inlet (803) is embedded in the left side of the upper surface of the oil storage tank (802), a limiting tube (804) is embedded in both sides of the bottom surface of the inner cavity of the oil storage tank (802), an oil delivery hole (805) is formed at the bottom of the opposite sides of the two limiting tubes (804), a positioning rod (806) is inserted into the inner cavity of each limiting tube (804), and a cotton brush (807) is fixedly connected to one end of each positioning rod (806) close to the right side bearing (106); Each of the positioning rods (806) is provided with a transfer hole (808) in communication with the oil delivery hole (805) and the inner cavity of the cotton brush (807); each of the cotton brushes (807) is provided with a plurality of oil outlet holes (809) at the middle position of one side close to the bearing (106); the upper ends of the two positioning rods (806) are fixedly connected with an inner connecting plate (810); a return spring (811) is fixedly connected between the lower surface of the inner connecting plate (810) and the bottom surface of the inner cavity of the oil storage tank (802); an inner follower tube (812) is fixedly connected to the upper surface of the left end of the inner connecting plate (810); a cotton core (813) is embedded in the inner follower tube (812); and a finger plate (814) is fixedly sleeved on the outer wall of the inner follower tube (812) at its upper end.

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