Permanent magnet synchronous gear speed reducing motor

Abstract

The utility model discloses a permanent magnet synchronous gear speed reducing motor, which comprises a motor main body, a motor shaft and a connecting shaft, the motor main body is fixedly connected with the motor shaft, the motor shaft is connected with the connecting shaft through a coupler, the connecting shaft extends into a shell and is connected with a gear B, the gear B is meshed with a gear C, and the gear C is meshed with the motor main body. A gear C is arranged in the shell, a shaft body is connected into the gear C, a coaxial gear is arranged on the shaft body, a gear A is meshed with the coaxial gear, a rotating shaft is installed on the gear A, and a lubricating oil tank is installed on the shell. The cooling fan is started to blow air to the spiral pipe, the air is cooled through the spiral pipe, the valve A and the valve B are started to add the lubricating oil to the gears when the interior of the shell is cooled through conveying of the lubricating oil, friction between the gears is reduced, and the protection effect on the gears is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of permanent magnet synchronous reduction motors, in particular to a permanent magnet synchronous gear reduction motor. Background Art

[0002] Permanent magnet synchronous motors use permanent magnets to provide excitation, which makes the motor structure simpler, reduces processing and assembly costs, and eliminates slip rings and brushes that are prone to problems, thereby improving the reliability of motor operation. Because no excitation current is required and there is no excitation loss, the efficiency and power density of the motor are improved.

[0003] After searching, Chinese utility model patent CN207705982U discloses a gear reduction motor, including a motor housing and a fan, wherein a magnetic steel is installed on the inner surface of the motor housing, a rear cover is welded on the left side of the fan, a fan fixing nut is movably connected to the right side of the fan, a main shaft is movably connected to the left side of the center of the fan, a wire frame is fixedly connected to the center of the main shaft, a coil is surrounded on the surface of the wire frame, an end cover is installed on the left side of the wire frame, a first bearing is fixedly connected to the center of the end cover, a first gear is movably connected to the left end of the main shaft, a second gear is movably connected above the first gear, and an output end bearing is welded to the left end of the second gear. The gear reduction motor has a good shock absorption effect through the precision connection between the main shaft and the first bearing and the second bearing.

[0004] The existing device will have the following problems when in use: the purpose of deceleration is achieved by changing the transmission force through different gears, but the meshing and rotation of multiple gears increases the temperature between the gears. When the temperature is high, the gears are aggravated and wear is reduced in service life, and the lubricating oil fails, reducing the stability of the gear operation. Utility Model Content

[0005] The purpose of the utility model is to provide a permanent magnet synchronous gear reduction motor to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a permanent magnet synchronous gear reduction motor, comprising a motor body, a motor shaft, and a connecting shaft, wherein the motor body is fixedly connected to the motor shaft, the motor shaft is connected to the connecting shaft through a coupling, the connecting shaft extends to the interior of the shell and is connected to a gear B, the gear B is meshed with a gear C, the gear C is connected to a shaft body, a coaxial gear is arranged on the shaft body, a gear A is meshed on the coaxial gear, a rotating shaft is installed on the gear A, a lubricating oil tank is installed on the shell, a pump body is installed on the lubricating oil tank, a spiral tube is connected to the pump body, and valves A and valves B are arranged on the spiral tube.

[0007] By adopting the above technical scheme, the motor body is started to drive the motor shaft to rotate, and the motor shaft cooperates with the coupling to drive the gear B on the connecting shaft, so that the gear B engages to drive the gear C, and the gear C cooperates with the shaft body to drive the coaxial gear to rotate, and the coaxial gear engages to drive the rotating shaft on the gear A to reduce the speed, and the semiconductor refrigeration plate is started to cool the lubricating oil in the lubricating oil tank, and the hot end of the semiconductor refrigeration plate is dissipated by the fan, the pump body is started to transport the lubricating oil to the inside of the spiral tube, and the cooling fan is started to blow air to the spiral tube, and the air is cooled from the spiral tube, so as to achieve the heat dissipation effect on the inside of the shell, reduce the heat generated by the friction of the gears, and increase the service life of the gears.

[0008] Preferably, the bottom of the housing and the motor body are both connected to a base.

[0009] Preferably, one end of the spiral tube away from the pump body is connected to a lubricating oil tank, and an oil inlet pipe is provided on the lubricating oil tank.

[0010] By adopting the above technical solution, valve A is started to transport lubricating oil to one side of gear A through the liquid outlet pipe, thereby adding lubricating oil between gear A and the coaxial gear, and valve B is opened to drip lubricating oil onto gear B and gear C, thereby reducing friction between the gears and increasing the life of the gears.

[0011] Preferably, both valve A and valve B are provided with liquid outlet pipes.

[0012] By adopting the above technical solution,

[0013] Preferably, a semiconductor refrigeration sheet is installed on one side of the lubricating oil tank, a cold end of the semiconductor refrigeration sheet is attached to one side of the lubricating oil tank, and a fan is installed on the hot end of the semiconductor refrigeration sheet.

[0014] By adopting the above technical solution, the lubricating oil in the lubricating oil tank is cooled by the cold end of the semiconductor refrigeration plate, and the fan dissipates heat from the hot end of the semiconductor.

[0015] Preferably, the rotating shaft and the connecting shaft are both installed inside the housing through bearings, and both ends of the shaft body are rotatably connected to the inner wall of the housing.

[0016] Preferably, a cooling fan is installed on the shell, and a dustproof net is provided on the cooling fan.

[0017] By adopting the above technical solution, dust is prevented from entering the housing and increasing the wear between the gears.

[0018] Compared with the prior art, the utility model has the following beneficial effects: by cooling the lubricating oil in the lubricating oil tank, and by starting the pump body to transport the lubricating oil to the inside of the spiral tube, and by starting the cooling fan to blow air to the spiral tube, the air is cooled from the spiral tube, and the lubricating oil is transported to dissipate heat to the inside of the shell, and by cooperating with starting valves A and B to add lubricating oil to the gears, the friction between the gears is reduced, and the protection effect on the gears is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.

[0021] Figure 3 It is a schematic diagram of the local structure of A of the utility model.

[0022] Figure 4 It is a schematic diagram of the local structure of B of the utility model.

[0023] In the figure: 1. Motor body; 2. Coupling; 3. Connecting shaft; 4. Lubricating oil tank; 5. Cooling fan; 6. Housing; 7. Rotating shaft; 8. Gear A; 9. Gear B; 10. Coaxial gear; 11. Gear C; 12. Base; 13. Fan; 14. Semiconductor cooling plate; 15. Motor shaft; 16. Spiral tube; 17. Valve A; 18. Valve B; 19. Liquid outlet pipe; 20. Pump body; 21. Shaft body. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides a technical solution: a permanent magnet synchronous gear reduction motor, including a motor body 1, a motor shaft 15, and a connecting shaft 3. Figure 1 , Figure 2The motor body 1 is fixedly connected with a motor shaft 15, and the motor shaft 15 is connected with a connecting shaft 3 through a coupling 2. The connecting shaft 3 extends to the interior of the housing 6 and is connected with a gear B9, and the gear B9 is meshed with a gear C11. The gear C11 is connected with a shaft body 21, and a coaxial gear 10 is arranged on the shaft body 21, and a gear A8 is meshed on the coaxial gear 10. A rotating shaft 7 is installed on the gear A8. The housing 6 and the bottom of the motor body 1 are both connected with a base 12. The rotating shaft 7 and the connecting shaft 3 are both installed in the housing 6 through bearings. Both ends of the shaft body 21 are rotatably connected to the inner wall of the housing 6. By starting the motor body 1, the motor shaft 15 is driven to rotate, and the motor shaft 15 cooperates with the coupling 2 to drive the gear B9 on the connecting shaft 3, so that the gear B9 meshes and drives the gear C11, and the gear C11 cooperates with the shaft body 21 to drive the coaxial gear 10 to rotate, and the coaxial gear 10 meshes and drives the rotating shaft 7 on the gear A8 to rotate at a reduced speed.

[0026] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 The housing 6 is provided with a lubricating oil tank 4, a pump body 20 is provided on the lubricating oil tank 4, a spiral tube 16 is connected to the pump body 20, a valve A17 and a valve B18 are provided on the spiral tube 16, one end of the spiral tube 16 away from the pump body 20 is connected to the lubricating oil tank 4, an oil inlet pipe is provided on the lubricating oil tank 4, and a liquid outlet pipe 19 is provided on the valve A17 and the valve B18. When the valve A17 is started, the lubricating oil is transported to one side of the gear A8 through the liquid outlet pipe 19, thereby increasing the lubricating oil between the gear A8 and the coaxial gear 10. When the valve B18 is opened, the lubricating oil is dripped onto the gear B9 and the gear C11, thereby reducing the friction between the gears and improving the life of the gears. A semiconductor refrigeration sheet 14 is installed on one side of the oil tank 4, and the cold end of the semiconductor refrigeration sheet 14 is attached to one side of the lubricating oil tank 4. A fan 13 is installed on the hot end of the semiconductor refrigeration sheet 14. The semiconductor refrigeration sheet 14 is started to cool the lubricating oil in the lubricating oil tank 4, and the hot end of the semiconductor refrigeration sheet 14 is dissipated by the fan 13. A cooling fan 5 is installed on the shell 6, and a dustproof net is provided on the cooling fan 5. The pump body 20 is started to transport the lubricating oil to the inside of the spiral tube 16, and the cooling fan 5 is started to blow air to the spiral tube 16, and the air is cooled from the spiral tube 16, so as to achieve a heat dissipation effect on the inside of the shell 6, reduce the heat generated by the friction of the gears, and increase the stability of the gear rotation.

[0027] Working principle: by starting the motor body 1, the motor shaft 15 is driven to rotate, and the motor shaft 15 cooperates with the coupling 2 to drive the gear B9 on the connecting shaft 3, so that the gear B9 engages and drives the gear C11, and the gear C11 cooperates with the shaft body 21 to drive the coaxial gear 10 to rotate, and the coaxial gear 10 engages and drives the rotating shaft 7 on the gear A8 to reduce the rotation speed, and the semiconductor refrigeration plate 14 is started to cool the lubricating oil in the lubricating oil tank 4, and the hot end of the semiconductor refrigeration plate 14 is dissipated by the fan 13, and the pump body 20 is started to transport the lubricating oil to the inside of the spiral tube 16, and the cooling fan 5 is started to blow air to the spiral tube 16, and the air is cooled from the spiral tube 16 to achieve the heat dissipation effect on the inside of the shell 6, and the heat generated by the friction of the gears is reduced, and the valve A17 is started to transport the lubricating oil to one side of the gear A8 through the liquid outlet pipe 19, so as to increase the lubricating oil between the gear A8 and the coaxial gear 10, and the valve B18 is opened to drip the lubricating oil onto the gear B9 and the gear C11, so as to reduce the friction between the gears and improve the life of the gears.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A permanent magnet synchronous gear reduction motor, comprising a motor body (1), a motor shaft (15), and a connecting shaft (3), characterized in that: The motor body (1) is fixedly connected to a motor shaft (15), the motor shaft (15) is connected to a connecting shaft (3) via a coupling (2), the connecting shaft (3) extends to the interior of the housing (6) and is connected to a gear B (9), the gear B (9) is meshed with a gear C (11), the gear C (11) is connected to a shaft body (21), a coaxial gear (10) is arranged on the shaft body (21), a gear A (8) is meshed on the coaxial gear (10), a rotating shaft (7) is mounted on the gear A (8), a lubricating oil tank (4) is mounted on the housing (6), a pump body (20) is mounted on the lubricating oil tank (4), a spiral tube (16) is connected to the pump body (20), and a valve A (17) and a valve B (18) are arranged on the spiral tube (16).

2. A permanent magnet synchronous gear reduction motor according to claim 1, characterized in that: The bottoms of the housing (6) and the motor body (1) are both connected to a base (12).

3. The permanent magnet synchronous gear reduction motor according to claim 1, characterized in that: One end of the spiral tube (16) away from the pump body (20) is connected to a lubricating oil tank (4), and an oil inlet pipe is provided on the lubricating oil tank (4).

4. The permanent magnet synchronous gear reduction motor according to claim 1, characterized in that: The valve A (17) and the valve B (18) are both provided with a liquid outlet pipe (19).

5. The permanent magnet synchronous gear reduction motor according to claim 1, characterized in that: A semiconductor refrigeration sheet (14) is installed on one side of the lubricating oil tank (4), a cold end of the semiconductor refrigeration sheet (14) is attached to one side of the lubricating oil tank (4), and a fan (13) is installed on the hot end of the semiconductor refrigeration sheet (14).

6. The permanent magnet synchronous gear reduction motor according to claim 1, characterized in that: The rotating shaft (7) and the connecting shaft (3) are both installed inside the housing (6) via bearings, and both ends of the shaft body (21) are rotatably connected to the inner wall of the housing (6).

7. The permanent magnet synchronous gear reduction motor according to claim 1, characterized in that: A heat dissipation fan (5) is installed on the housing (6), and a dustproof net is provided on the heat dissipation fan (5).

Images