Low noise permanent magnet synchronous servo motor

Abstract

This utility model relates to the field of motor technology and discloses a low-noise permanent magnet synchronous servo motor, including a motor housing. A terminal block is fixedly connected to the top of the motor housing, and a mounting and adjusting mechanism is fixedly connected to the bottom of the motor housing. The mounting and adjusting mechanism includes a cylindrical rod, the top of which is fixedly connected to the bottom of the motor housing, and a disc fixedly connected to the bottom of the cylindrical rod. A U-shaped seat is rotatably connected to the outside of the cylindrical rod, and the disc is rotatably connected to the inside of the U-shaped seat. In this utility model, the U-shaped seat is fixed by a mounting plate, and rotating the motor housing causes the cylindrical rod and disc to rotate. These are then locked by a plate, a locking seat, and a locking rod, ensuring that the motor angle does not easily change during operation. This improves installation convenience and stability, allows for flexible adjustment of the motor angle and stable installation, facilitates adaptation to different equipment layouts, and enhances the motor's practicality.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a low-noise permanent magnet synchronous servo motor. Background Technology

[0002] In the current context of rapid development in industrial automation and intelligent manufacturing, servo motors, as core drive components for various automated equipment, precision machine tools, robots, and high-end equipment, directly determine the operating accuracy, efficiency, and stability of the entire device. With the acceleration of industrial upgrading, market demands for servo motors have gradually shifted from simply high power density and high response speed to low noise, low vibration, and high reliability.

[0003] The low-noise permanent magnet synchronous servo motor mainly consists of a stator, rotor, encoder, and end cover. The stator includes an iron core and three-phase windings. The rotor has built-in high-performance permanent magnets to form a constant magnetic field. The encoder is used to provide real-time feedback on the rotor position and speed. The end cover uses low-friction bearings and a sealing design to reduce mechanical noise. After receiving external control signals, the driver uses the rotor position information fed back by the encoder to precisely adjust the current magnitude and phase of the stator's three-phase windings through a vector control algorithm, so that the rotating magnetic field generated by the stator and the magnetic field of the rotor's permanent magnets maintain synchronous speed. The rotor is driven to rotate smoothly by electromagnetic attraction.

[0004] In the existing technology, some permanent magnet synchronous servo motors still adopt the traditional fixed installation structure. The installation method, installation angle and relative position are fixed, making it difficult to flexibly adjust according to the internal layout, space size and assembly requirements of different application equipment. Therefore, a low-noise permanent magnet synchronous servo motor is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a low-noise permanent magnet synchronous servo motor, which aims to improve the problem that some permanent magnet synchronous servo motors in the prior art are difficult to adapt to the layout of different equipment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A low-noise permanent magnet synchronous servo motor includes a motor housing, a terminal block fixedly connected to the top of the motor housing, an installation and adjustment mechanism fixedly connected to the bottom of the motor housing, and a wire harness fixing mechanism fixedly connected to the top of the motor housing.

[0008] The installation and adjustment mechanism includes a cylindrical rod, the top of which is fixedly connected to the bottom of the motor housing, a disc fixedly connected to the bottom of the cylindrical rod, a U-shaped seat rotatably connected to the outside of the cylindrical rod, the disc rotatably connected to the inside of the U-shaped seat, mounting plates fixedly connected to the outer sides of the U-shaped seat, an insert plate slidably connected to the inside of the U-shaped seat, the insert plate slidably connected to the inside of the disc, and a locking component fixedly connected to the outside of the U-shaped seat.

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

[0010] The wire harness fixing mechanism includes a connecting seat, the bottom of which is fixedly connected to the top of the motor housing. A rotating plate is rotatably connected inside the connecting seat. Two wire harness fixing plates are fixedly connected to the bottom of the rotating plate. The bottoms of the two wire harness fixing plates are slidably connected inside the connecting seat. A limit assembly is fixedly connected to the outside of the rotating plate.

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

[0012] The locking assembly includes a locking seat, which is externally fixedly connected to the outer side of the U-shaped seat. The outer side of the insert plate is slidably connected to the inside of the locking seat. A locking rod is slidably connected to the inside of the locking seat, and the outer side of the locking rod is slidably connected to the inside of the insert plate.

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

[0014] The limiting component includes an L-shaped plate, the L-shaped plate being fixedly connected to the outer side of the rotating plate, a limiting rod being slidably connected inside the connecting seat, and the limiting rod being slidably connected to the inside of the L-shaped plate.

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

[0016] A stator is fixedly connected inside the motor housing, and a rotor is rotatably connected inside the stator;

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

[0018] A drive shaft is fixedly connected inside the rotor, a sound insulation ring is fixedly connected to the front end of the motor housing, and a front cover is fixedly connected to the outside of the motor housing by bolts, with one outer side of the front cover in contact with the outside of the sound insulation ring.

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

[0020] A bearing is fixedly connected inside the front end cover, and the drive shaft is fixedly connected to the inside of the bearing.

[0021] As a further description of the above technical solution:

[0022] An encoder is fixedly connected to the outer rear end of the motor housing, and a connecting wire is fixedly connected to the inner top side of the encoder.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the U-shaped seat is fixed by the mounting plate, and the cylindrical rod and disc are rotated by rotating the motor housing. Then, they are locked by the insert plate, locking seat and locking rod, which ensures that the angle of the motor does not change easily when it is running, improves the convenience and stability of installation, realizes flexible adjustment of the motor angle and stable installation, facilitates the adaptation to different equipment layouts, and improves the practicality of the motor.

[0025] 2. In this utility model, by rotating the rotating plate inside the connecting seat, the angle and position of the wire harness fixing plate are adjusted. After the cable is placed in, it slides into the connecting seat and pushes the limiting rod into the hole of the L-shaped plate for fixing. This can classify and fix the cable in an orderly manner, prevent the cable from loosening during motor operation, and improve the overall reliability and safety of the motor. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a low-noise permanent magnet synchronous servo motor proposed in this utility model.

[0027] Figure 2 This is a schematic diagram of the U-shaped base of a low-noise permanent magnet synchronous servo motor proposed in this utility model;

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0030] Legend:

[0031] 1. Motor housing; 2. Terminal block; 3. Mounting and adjustment mechanism; 31. Cylindrical rod; 32. Disc; 33. U-shaped seat; 34. Mounting plate; 35. Insert plate; 36. Locking assembly; 361. Locking seat; 362. Locking rod; 4. Wiring harness fixing mechanism; 41. Connecting seat; 42. Rotating plate; 43. Wiring harness fixing plate; 44. Limiting assembly; 441. L-shaped plate; 442. Limiting rod; 5. Stator; 6. Rotor; 7. Drive shaft; 8. Sound insulation ring; 9. Front cover; 10. Bearing; 11. Encoder; 12. Connecting wire. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figures 1 to 3 The present invention provides an embodiment of a low-noise permanent magnet synchronous servo motor, including a motor housing 1. The motor housing 1 provides a stable installation space for the internal stator 5 and rotor 6, and also serves as a protective function. A terminal block 2 is fixedly connected to the top of the motor housing 1. The terminal block 2 is the interface for connecting the motor to the external circuit. An installation adjustment mechanism 3 is fixedly connected to the bottom of the motor housing 1, and a wire harness fixing mechanism 4 is fixedly connected to the top of the motor housing 1.

[0034] The mounting and adjusting mechanism 3 includes a cylindrical rod 31, which serves as an intermediate transition component connecting the motor housing 1 and the lower U-shaped seat 33. The top of the cylindrical rod 31 is fixedly connected to the bottom of the motor housing 1, and a disc 32 is fixedly connected to the bottom of the cylindrical rod 31. The disc 32 cooperates with the U-shaped seat 33 to provide a rotational basis for the motor housing 1 to rotate around the cylindrical rod 31. The U-shaped seat 33 is rotatably connected to the outside of the cylindrical rod 31. The U-shaped seat 33 is used to mount the entire motor onto the equipment frame. The disc 32 is rotatably connected to the inside of the U-shaped seat 33. The U-shaped base 33 has mounting plates 34 fixedly connected to its outer sides. The mounting plates 34 are mounting structures that extend outward from the U-shaped base 33. The surface is machined with mounting holes to facilitate connection with the outside via bolts. The U-shaped base 33 has a sliding insert plate 35 inside. When the motor is adjusted to a suitable angle, the insert plate 35 is pushed into the slot of the disc 32, which can limit the rotation of the disc 32 relative to the U-shaped base 33 and play an angle locking role. The insert plate 35 is slidably connected to the inside of the disc 32. The U-shaped base 33 has a locking component 36 fixedly connected to its outside.

[0035] The locking assembly 36 includes a locking seat 361, which provides installation guide space for the locking lever 362 and the insert plate 35. The locking seat 361 is externally fixedly connected to the outer side of the U-shaped seat 33, and the insert plate 35 is externally slidably connected to the inside of the locking seat 361. The locking lever 362 is slidably connected to the inside of the locking seat 361. When the insert plate 35 is inserted into the slot of the disc 32, the locking lever 362 is pushed into the locking hole on the insert plate 35 to further lock the position of the insert plate 35. The locking lever 362 is externally slidably connected to the inside of the insert plate 35.

[0036] Reference Figure 1 , Figure 2 and Figure 4The wire harness fixing mechanism 4 includes a connecting seat 41, which provides an installation base for the rotating plate 42. The bottom of the connecting seat 41 is fixedly connected to the top of the motor housing 1. The rotating plate 42 is rotatably connected inside the connecting seat 41. The rotating plate 42 can be rotated to adjust the angle and position of the wire harness fixing plate 43 for easy cable fixing. Two wire harness fixing plates 43 are fixedly connected to the bottom of the rotating plate 42. The wire harness fixing plates 43 are used to classify and fix the motor cables. The bottom of the two wire harness fixing plates 43 is slidably connected inside the connecting seat 41. A limit assembly 44 is fixedly connected to the outside of the rotating plate 42.

[0037] The limiting component 44 includes an L-shaped plate 441, which provides an installation and fitting structure for the limiting rod 442 and plays a role in transmitting and limiting. The L-shaped plate 441 is externally fixedly connected to the outer side of the rotating plate 42. The limiting rod 442 is slidably connected inside the connecting seat 41. The limiting rod 442 can be inserted into the internal hole of the L-shaped plate 441. When the rotating plate 42 is adjusted to a suitable angle, the limiting rod 442 is pushed into the hole of the L-shaped plate 441 to limit the rotation of the rotating plate 42 and ensure the stability of the wire harness fixing plate 43. The limiting rod 442 is externally slidably connected inside the L-shaped plate 441.

[0038] Reference Figure 1 and Figure 2 A stator 5 is fixedly connected inside the motor housing 1. The stator 5 consists of an iron core and windings, and can generate a rotating magnetic field to provide a magnetic field for the rotation of the rotor 6. The rotor 6 is rotatably connected inside the stator 5. A permanent magnet is installed on the rotor 6. The constant magnetic field generated by the permanent magnet interacts with the rotating magnetic field of the stator 5 to drive the rotor 6 to rotate. A drive shaft 7 is fixedly connected inside the rotor 6 to transmit the rotational mechanical energy of the rotor 6. A sound insulation ring 8 is fixedly connected to the front end of the motor housing 1. The sound insulation ring 8 has a good sound insulation effect and effectively blocks the transmission of electromagnetic noise and mechanical vibration noise inside the motor to the outside. The motor housing 1 is fixed to the outside by bolts. A front cover 9 is fixedly connected to the motor housing 1. The front cover 9 serves to seal the front end of the motor and support the drive shaft 7. The outer side of the front cover 9 is in contact with the outer side of the sound insulation ring 8. A bearing 10 is fixedly connected inside the front cover 9. The bearing 10 is used to support the rotation of the drive shaft 7 and reduce the frictional resistance when the drive shaft 7 rotates. The outer side of the drive shaft 7 is fixedly connected to the inner side of the bearing 10. An encoder 11 is fixedly connected to the outer rear end of the motor housing 1. The encoder 11 is a feedback element of the motor and detects the position and speed information of the motor rotor 6 in real time. A connecting wire 12 is fixedly connected to the top side of the encoder 11. The connecting wire 12 is used to transmit the electrical signal detected by the encoder 11 to the outside.

[0039] Working principle: First, the U-shaped seat 33 is fixed to the equipment frame by using the mounting holes on the surface of the mounting plate 34 and bolts. According to the installation requirements, the motor housing 1 is rotated around the cylindrical rod 31. The cylindrical rod 31 drives the bottom disc 32 to rotate in the U-shaped seat 33. After the drive shaft 7 reaches the appropriate angle, the insert plate 35 is pushed to slide in the U-shaped seat 33, so that the insert plate 35 is inserted into the slot of the disc 32, restricting the rotation of the disc 32. Then, the locking rod 362 is pushed to slide in the locking seat 361, so that the locking rod 362 is inserted into the locking hole of the insert plate 35, thus completing the fixing of the motor angle.

[0040] Rotate the rotating plate 42 inside the connector 41 to adjust the angle and position of the two wire harness fixing plates 43. Separate the cables led out from the terminal block 2 and place them into the wire harness fixing plates 43. Slide the wire harness fixing plates 43 into the connector 41 by rotating the plate 42. Push the limiting rod 442 to slide within the connector 41, so that the limiting rod 442 is inserted into the hole of the L-shaped plate 441, fixing the position of the rotating plate 42 and ensuring the cable is fixed. When the motor is working, the external circuit supplies three-phase AC power to the windings of the stator 5 through the terminal block 2. The stator 5 generates a rotating magnetic field, and the motor rotates... The permanent magnet on rotor 6 interacts with the rotating magnetic field, causing rotor 6 to rotate inside stator 5. Rotor 6 then drives the internally fixed drive shaft 7 to rotate. Drive shaft 7 is supported by bearing 10 inside front cover 9, transmitting mechanical energy to the outside. During operation, the sound insulation ring 8 at the front end inside motor housing 1 blocks the transmission of internal electromagnetic noise and mechanical vibration noise to the outside. The encoder 11 at the rear end detects the position and speed information of rotor 6 in real time and transmits the electrical signal to the external controller through connection line 12 to realize real-time monitoring of motor operation status.

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

Claims

1. A low-noise permanent magnet synchronous servo motor, comprising a motor housing (1), characterized in that: A terminal block (2) is fixedly connected to the top of the motor housing (1), an installation adjustment mechanism (3) is fixedly connected to the bottom of the motor housing (1), and a wire harness fixing mechanism (4) is fixedly connected to the top of the motor housing (1). The installation adjustment mechanism (3) includes a cylindrical rod (31), the top of which is fixedly connected to the bottom of the motor housing (1), a disc (32) is fixedly connected to the bottom of the cylindrical rod (31), a U-shaped seat (33) is rotatably connected to the outside of the cylindrical rod (31), the outside of the disc (32) is rotatably connected to the inside of the U-shaped seat (33), mounting plates (34) are fixedly connected to the two outer sides of the U-shaped seat (33), a plug plate (35) is slidably connected to the inside of the U-shaped seat (33), the outside of the plug plate (35) is slidably connected to the inside of the disc (32), and a locking component (36) is fixedly connected to the outside of the U-shaped seat (33).

2. The low-noise permanent magnet synchronous servo motor according to claim 1, characterized in that: The wire harness fixing mechanism (4) includes a connecting seat (41), the bottom of which is fixedly connected to the top of the motor housing (1). A rotating plate (42) is rotatably connected inside the connecting seat (41). Two wire harness fixing plates (43) are fixedly connected to the bottom of the rotating plate (42). The bottoms of the two wire harness fixing plates (43) are slidably connected inside the connecting seat (41). A limit assembly (44) is fixedly connected to the outside of the rotating plate (42).

3. The low-noise permanent magnet synchronous servo motor according to claim 1, characterized in that: The locking assembly (36) includes a locking seat (361), which is externally fixedly connected to the outer side of the U-shaped seat (33). The outer side of the insert plate (35) is slidably connected to the inside of the locking seat (361). A locking rod (362) is slidably connected to the inside of the locking seat (361), and the outer side of the locking rod (362) is slidably connected to the inside of the insert plate (35).

4. A low-noise permanent magnet synchronous servo motor according to claim 2, characterized in that: The limiting component (44) includes an L-shaped plate (441), the L-shaped plate (441) is fixedly connected to the outside of the rotating plate (42), the connecting seat (41) is slidably connected to a limiting rod (442), and the limiting rod (442) is slidably connected to the inside of the L-shaped plate (441).

5. A low-noise permanent magnet synchronous servo motor according to claim 1, characterized in that: The stator (5) is fixedly connected inside the motor housing (1), and the rotor (6) is rotatably connected inside the stator (5).

6. A low-noise permanent magnet synchronous servo motor according to claim 5, characterized in that: The rotor (6) is fixedly connected to the inside of the drive shaft (7), the front end of the motor housing (1) is fixedly connected to the inside of the sound insulation ring (8), and the front end cover (9) is fixedly connected to the outside of the motor housing (1) by bolts. The outer side of the front end cover (9) is in contact with the outside of the sound insulation ring (8).

7. A low-noise permanent magnet synchronous servo motor according to claim 6, characterized in that: The front end cover (9) is internally fixedly connected to a bearing (10), and the drive shaft (7) is externally fixedly connected to the inner side of the bearing (10).

8. A low-noise permanent magnet synchronous servo motor according to claim 1, characterized in that: An encoder (11) is fixedly connected to the outer rear end of the motor housing (1), and a connecting wire (12) is fixedly connected to the inner top side of the encoder (11).

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