High-bearing permanent magnet linear stepping motor

Abstract

The utility model relates to the field of stepping motors, and discloses a high-bearing permanent magnet type linear stepping motor which comprises a motor and a rotating disc, a stator structure is fixedly installed on the inner wall of the motor, a rotor structure is rotationally connected to the inner wall of the stator structure, and the center of the rotor structure and the center of the motor are located on the same straight line. A plurality of bearing blocks are clamped to the surface of one end of the rotating disc, and a fixing frame is rotationally mounted at one end of each bearing block; according to the invention, the rotating disc is installed at one end of the rotor structure, a plurality of bearing blocks are clamped on the surface of the rotating disc, one end of each bearing block is rotatably connected with a fixing frame, and a plurality of limiting blocks are fixedly installed on the surface of the fixing frame, so that when the rotating disc stops, the bearing blocks are clamped with the limiting blocks on the surface of the fixing frame; and when the motor starts to control the rotor structure to rotate, the bearing block slides on the surface of the rotating disc after rotating, and the influence on operation of the rotor structure at one end of the rotating disc is avoided.

Description

Technical Field

[0001] The present application relates to the field of stepper motors, and in particular to a high-load permanent magnet linear stepper motor. Background Art

[0002] Magnetic linear stepper motors, also known as permanent magnet linear stepper motors, are micro motors that convert electrical pulse signals into angular or linear displacements. Their operating performance depends on the good coordination between the motor and the drive power supply. Permanent magnet linear stepper motors are a basic type of stepper motors, and their characteristic is that they convert rotary motion into linear motion. This means that it can directly generate linear motion without the need for an additional mechanical conversion mechanism like a rotary stepper motor to achieve linear motion. The advantages of permanent magnet linear stepper motors include simple structure, reliable operation, high efficiency, low heat generation, etc. In addition, since it directly generates linear motion, the conversion mechanism from rotary to linear can be omitted in some applications, thereby simplifying the system structure and improving the accuracy and reliability of the system.

[0003] With respect to the above-mentioned related technologies, the inventors believe that conventional stepper motors are often used for heavy objects, which results in some objects needing to remain in the corresponding position after the stepper motor stops. Therefore, higher load-bearing capacity requirements are placed on the motor shaft. However, most conventional motor shafts are not provided with a structure for fixing, which results in certain limitations during use.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In order to solve the problem of limited load-bearing capacity of conventional stepper motors during use, the present application provides a high-load-bearing permanent magnet linear stepper motor.

[0006] The present application provides a high-load permanent magnet linear stepper motor adopts the following technical solution:

[0007] A high-load permanent magnet linear stepper motor comprises a motor and a rotating disk, wherein a stator structure is fixedly mounted on the inner wall of the motor, a rotor structure is rotatably connected to the inner wall of the stator structure, the center of the rotor structure and the center of the motor are on the same straight line, a plurality of load-bearing blocks are clamped on the surface of one end of the rotating disk, a fixed frame is rotatably mounted on one end of the load-bearing block, a plurality of limit blocks are fixedly mounted on one end of the fixed frame, one end of the rotating disk is fixedly connected to one end of the rotor structure, a plurality of the load-bearing blocks are distributed in a circular array with the center of the rotating disk as the axis, and one end of the limit block is movably mounted on the surface of the fixed frame.

[0008] Preferably, a spring is fixedly connected to the inner wall of the load-bearing block, and one end of the spring away from the load-bearing block is fixedly mounted to the inner wall of the fixing frame.

[0009] Preferably, one end of the load-bearing block is fixedly connected to a rotating block, one end of the rotating block is fixedly installed with a pull rope, one end of the pull rope away from the connection between itself and the rotating block is fixedly installed with a threaded rod, one end of the threaded rod is rotatably connected to one end of the fixed frame, and one end of the threaded rod is fixedly installed with a control block.

[0010] Preferably, a shielding cover is fixedly mounted on the surface of the fixing frame, a fixing ring is threadedly connected to the surface of the threaded rod, and one end of the fixing ring is snap-fitted to the surface of the shielding cover.

[0011] Preferably, a limiting ring is slidably installed on the inner wall of the threaded rod, and a plurality of clamping blocks are clamped on one side of the limiting ring. The plurality of clamping blocks are distributed in a circular array with the center of the limiting ring as the axis, and one end of the clamping block is fixedly connected to the surface of the shielding cover.

[0012] Preferably, a plurality of bolts are clamped on the inner wall of the shielding cover, the surface of the bolts is threadedly mounted on one end of the motor, and the plurality of bolts are evenly distributed at the four corners of the motor.

[0013] Preferably, a snap ring is fixedly connected to one end of the shielding cover, and the snap ring is a rubber ring. A connecting groove matched with the snap ring is opened at one end of the motor, and the inner wall of the connecting groove is snap-fitted to the surface of the snap ring.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] 1. The rotating disk is installed at one end of the rotor structure, and several load-bearing blocks are clamped on the surface of the rotating disk. One end of the load-bearing block is rotatably connected to a fixed frame, and several limit blocks are fixedly installed on the surface of the fixed frame, so that when the rotating disk stops, the load-bearing block is clamped with the limit blocks on the surface of the fixed frame to fix the position of the rotating disk, and when the motor starts to control the rotation of the rotor structure, the load-bearing block rotates and slides with the surface of the rotating disk to avoid affecting the operation of the rotor structure at one end of the rotating disk, and the inner wall of the load-bearing block is fixedly connected with a spring, and one end of the spring is fixedly installed on one end of the fixed frame, so that the load-bearing block is pushed by the spring, so that the load-bearing block is pushed to rotate after the rotating disk pushes the load-bearing block. Self-rebound keeps the load-bearing block in contact with the surface of the rotating disk, effectively improving the stability of the device. One end of the load-bearing block is fixedly connected to a rotating block, one end of the rotating block is fixedly installed with a pull rope, one end of the pull rope is fixedly connected to a threaded rod, one end of the threaded rod is rotatably connected to the surface of the fixed frame, and one end of the threaded rod is installed with a control block, so that the threaded rod can be controlled to rotate with the help of the control block, and the pull rope is retracted into the surface of the threaded rod to control the contraction of the load-bearing block at one end of the rotating block, so that after the motor is started, the load-bearing block is controlled to be retracted to avoid friction between the load-bearing block and the surface of the rotating disk, thereby reducing the rotation speed of the rotor structure and affecting the use of the rotor structure; compared with the existing technology, the load-bearing capacity of the stepper motor is effectively improved;

[0016] 2. A fixing ring can also be threadedly connected to the surface of the threaded rod, and one end of the fixing ring is clamped with the surface of the shielding cover at one end of the motor, so that the threaded rod can be fixed with the help of the fixing ring to keep the length of the pull rope at an appropriate length. The inner wall of the threaded rod is slidably connected to a limiting ring, and one end of the limiting ring is clamped with several clamping blocks, and one end of the clamping block is fixedly installed on the surface of the shielding cover, so that the limiting ring is clamped with the surface of the clamping block, thereby improving the fixing effect of the fixing ring on the threaded rod, preventing the threaded rod from slipping and causing the rotating block at one end of the pull rope to loosen, so that the load-bearing block and In case of friction in the rotor structure, several bolts are clamped on the inner wall of the shielding cover, and the surface of the bolts is threadedly connected to one end of the motor, so that the shielding cover can be installed on one end of the motor with the help of the bolts, thereby protecting the surface of the device and preventing foreign matter from entering the shielding cover and affecting the device. A rubber clamping ring is fixedly connected to one end of the shielding cover, and the surface of the clamping ring is clamped in the connecting groove in the motor, so that the sealing effect of the shielding cover can be improved with the help of the clamping ring and the connecting groove, thereby effectively improving the protection effect of the device, thereby improving the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a high-load permanent magnet linear stepper motor according to an embodiment of the application;

[0018] Figure 2 It is a schematic diagram of the structure of location A of the embodiment of the application;

[0019] Figure 3is a schematic diagram of the structure of a rotating disk according to an embodiment of the application;

[0020] Figure 4 is a side view schematic diagram of the structure of an embodiment of the application;

[0021] Figure 5 It is a schematic diagram of the structure at B of the application embodiment.

[0022] Explanation of the accompanying drawings: 1. Motor; 2. Stator structure; 3. Rotor structure; 4. Rotating disk; 5. Load-bearing block; 6. Spring; 7. Fixed frame; 8. Limit block; 9. Rotating block; 10. Pull rope; 11. Threaded rod; 12. Control block; 13. Fixed ring; 14. Limit ring; 15. Block; 16. Shielding cover; 17. Bolt; 18. Snap ring; 19. Connecting groove. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1 —5 Provide further details of this application.

[0024] The present application discloses a high-load permanent magnet linear stepper motor. Figure 1 - Figure 2 , including a motor 1, the inner wall of the motor 1 is equipped with a stator structure 2 and a rotor structure 3, the magnetic field generated by the stator structure 2 drives the rotor structure 3 to rotate, so as to facilitate driving the rotor of other objects, a rotating disk 4 is installed at one end of the rotor structure 3, a plurality of load-bearing blocks 5 are clamped on the surface of the rotating disk 4, one end of the load-bearing block 5 is rotatably connected to a fixing frame 7, a plurality of limit blocks 8 are fixedly installed on the surface of the fixing frame 7, the surface of the limit block 8 is clamped with the limit block 8, and a fixing frame 7 is installed on one end of the limit block 8. When the motor 1 rotates to a certain angle and needs to carry an object, the rotating disk 4 contacts the surface of the load-bearing block 5 after being rotated by gravity, and one end of the load-bearing block 5 is clamped with the surface of the limit block 8, so that the two rotating disks 4 are fixed in place, which is convenient for fixing the position of the rotating disk 4, and when the motor 1 starts to control the rotation of the rotor structure 3, the load-bearing block 5 rotates and slides with the surface of the rotating disk 4, so as to avoid affecting the operation of the rotor structure 3 at one end of the rotating disk 4.

[0025] Reference Figure 2 - Figure 3The inner wall of the load-bearing block 5 is fixedly connected with a spring 6, and one end of the spring 6 is fixedly installed with one end of the fixing frame 7. The load-bearing block 5 is pushed by the spring 6, so that the load-bearing block 5 rebounds by itself after the rotating disk 4 pushes the load-bearing block 5 to rotate, and the load-bearing block 5 is kept in contact with the surface of the rotating disk 4, effectively improving the stability of the device. One end of the load-bearing block 5 is fixedly connected with a rotating block 9, and one end of the rotating block 9 is fixedly installed with a pull rope 10. One end of the pull rope 10 is fixedly connected with a threaded rod 11, and one end of the threaded rod 11 is rotatably connected to the surface of the fixing frame 7, and a control block 12 is installed at one end of the threaded rod 11. The threaded rod 11 is controlled to rotate by means of the control block 12, and the pull rope 10 is retracted into the surface of the threaded rod 11 to control the load-bearing block 5 at one end of the rotating block 9 to retract. Therefore, after the motor 1 is started, the load-bearing block 5 is controlled to be retracted by means of the pull rope 10, so as to avoid friction between the load-bearing block 5 and the surface of the rotating disk 4, thereby reducing the rotation speed of the rotor structure 3 and affecting the use of the rotor structure 3.

[0026] Reference Figure 4 - Figure 5 The surface of the threaded rod 11 is threadedly connected with a fixing ring 13, and one end of the fixing ring 13 is clamped with the surface of the shielding cover 16 at one end of the motor 1. The threaded rod 11 is fixed with the help of the fixing ring 13 to keep the length of the pull rope 10 at an appropriate length. The inner wall of the threaded rod 11 is slidably connected with a limiting ring 14, and one end of the limiting ring 14 is clamped with a plurality of clamping blocks 15. One end of the clamping block 15 is fixedly installed on the surface of the shielding cover 16. The limiting ring 14 is clamped with the surface of the clamping block 15, thereby improving the fixing effect of the fixing ring 13 on the threaded rod 11, and preventing the threaded rod 11 from slipping and causing the rotation block at one end of the pull rope 10 9 is loose, causing the load-bearing block 5 to rub against the rotor structure 3. The inner wall of the shielding cover 16 is clamped with several bolts 17, and the surface of the bolts 17 is threadedly connected to one end of the motor 1. The shielding cover 16 is installed on one end of the motor 1 with the help of the bolts 17, so as to protect the surface of the device and prevent foreign matter from entering the shielding cover 16 and affecting the device. One end of the shielding cover 16 is fixedly connected with a rubber clamping ring 18, and the surface of the clamping ring 18 is clamped with a connecting groove 19 in the motor 1. The sealing effect of the shielding cover 16 is improved with the help of the clamping ring 18 and the connecting groove 19, thereby effectively improving the protection effect of the device.

[0027] The implementation principle of a high-load permanent magnet linear stepper motor 1 in the embodiment of the present application is as follows: by installing a rotating disk 4 at one end of a rotor structure 3, a plurality of load-bearing blocks 5 are clamped on the surface of the rotating disk 4, one end of the load-bearing block 5 is rotatably connected to a fixing frame 7, and a plurality of limit blocks 8 are fixedly installed on the surface of the fixing frame 7, so that when the rotating disk 4 stops, the load-bearing block 5 is clamped with the limit blocks 8 on the surface of the fixing frame 7, thereby fixing the position of the rotating disk 4, and when the motor 1 starts to control the rotation of the rotor structure 3, the load-bearing block 5 rotates and slides with the surface of the rotating disk 4 to avoid affecting the operation of the rotor structure 3 at one end of the rotating disk 4, the inner wall of the load-bearing block 5 is fixedly connected with a spring 6, and one end of the spring 6 is fixedly installed with one end of the fixing frame 7, so that the load-bearing block 5 is pushed with the help of the spring 6, Thereby, after the rotating disk 4 pushes the load-bearing block 5 to rotate, the load-bearing block 5 rebounds by itself, and the load-bearing block 5 is kept in contact with the surface of the rotating disk 4, which effectively improves the stability of the device. One end of the load-bearing block 5 is fixedly connected to the rotating block 9, and one end of the rotating block 9 is fixedly installed with a pull rope 10, and one end of the pull rope 10 is fixedly connected to a threaded rod 11, one end of the threaded rod 11 is rotatably connected to the surface of the fixed frame 7, and a control block 12 is installed at one end of the threaded rod 11, so that the threaded rod 11 can be controlled to rotate with the help of the control block 12, and the pull rope 10 is retracted into the surface of the threaded rod 11, so as to control the contraction of the load-bearing block 5 at one end of the rotating block 9, so that after the motor 1 is started, the load-bearing block 5 is controlled to be retracted, so as to avoid friction between the load-bearing block 5 and the surface of the rotating disk 4, thereby reducing the rotation speed of the rotor structure 3 and affecting the use of the rotor structure 3.

[0028] A fixing ring 13 can also be threadedly connected to the surface of the threaded rod 11, and one end of the fixing ring 13 is clamped with the surface of the shielding cover 16 at one end of the motor 1, so that the threaded rod 11 can be fixed with the help of the fixing ring 13, and the length of the pull rope 10 can be maintained at an appropriate length. The inner wall of the threaded rod 11 is slidably connected to a limiting ring 14, and one end of the limiting ring 14 is clamped with several clamping blocks 15, and one end of the clamping block 15 is fixedly installed on the surface of the shielding cover 16, so that the fixing ring 13 can be clamped with the surface of the clamping block 15 with the help of the limiting ring 14, thereby improving the fixing effect of the fixing ring 13 on the threaded rod 11 and preventing the threaded rod 11 from slipping and causing the rotation of one end of the pull rope 10 Block 9 is loose, causing friction between the load-bearing block 5 and the rotor structure 3. The inner wall of the shielding cover 16 is clamped with several bolts 17, and the surface of the bolts 17 is threadedly connected to one end of the motor 1, so that the shielding cover 16 can be installed on one end of the motor 1 with the help of the bolts 17, thereby protecting the surface of the device and preventing foreign matter from entering the shielding cover 16 and affecting the device. One end of the shielding cover 16 is fixedly connected with a rubber clamping ring 18, and the surface of the clamping ring 18 is clamped with a connecting groove 19 in the motor 1, so that the sealing effect of the shielding cover 16 can be improved with the help of the clamping ring 18 and the connecting groove 19, thereby effectively improving the sealing effect of the device.

[0029] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-load permanent magnet linear stepper motor (1), comprising a motor (1) and a rotating disk (4), characterized in that: The inner wall of the motor (1) is fixedly mounted with a stator structure (2), the inner wall of the stator structure (2) is rotatably connected with a rotor structure (3), the center of the rotor structure (3) and the center of the motor (1) are on the same straight line, a plurality of load-bearing blocks (5) are clamped on the surface of one end of the rotating disk (4), a fixing frame (7) is rotatably mounted on one end of the load-bearing block (5), and a plurality of limit blocks (8) are fixedly mounted on one end of the fixing frame (7).

2. A high-load permanent magnet linear stepper motor (1) according to claim 1, characterized in that: One end of the rotating disk (4) is fixedly connected to one end of the rotor structure (3); a plurality of the load-bearing blocks (5) are distributed in a circular array with the center of the rotating disk (4) as the axis; and one end of the limit block (8) is movably mounted on the surface of the fixing frame (7).

3. A high-load permanent magnet linear stepper motor (1) according to claim 1, characterized in that: The inner wall of the load-bearing block (5) is fixedly connected with a spring (6), and one end of the spring (6) away from the load-bearing block (5) is fixedly mounted on the inner wall of the fixing frame (7).

4. A high-load permanent magnet linear stepper motor (1) according to claim 1, characterized in that: One end of the load-bearing block (5) is fixedly connected to a rotating block (9), one end of the rotating block (9) is fixedly mounted with a pull rope (10), one end of the pull rope (10) away from the connection between the pull rope and the rotating block (9) is fixedly mounted with a threaded rod (11), one end of the threaded rod (11) is rotatably connected to one end of the fixing frame (7), and one end of the threaded rod (11) is fixedly mounted with a control block (12).

5. A high-load permanent magnet linear stepper motor (1) according to claim 4, characterized in that: A shielding cover (16) is fixedly mounted on the surface of the fixing frame (7), a fixing ring (13) is threadedly connected to the surface of the threaded rod (11), and one end of the fixing ring (13) is snap-fitted to the surface of the shielding cover (16).

6. A high-load permanent magnet linear stepper motor (1) according to claim 4, characterized in that: A limiting ring (14) is slidably mounted on the inner wall of the threaded rod (11); a plurality of clamping blocks (15) are clamped on one side of the limiting ring (14); the plurality of clamping blocks (15) are distributed in a circular array with the center of the limiting ring (14) as the axis, and one end of the clamping block (15) is fixedly connected to the surface of the shielding cover (16).

7. A high-load permanent magnet linear stepper motor (1) according to claim 5, characterized in that: A plurality of bolts (17) are clamped on the inner wall of the shielding cover (16), the surface of the bolts (17) is threadedly mounted on one end of the motor (1), and the plurality of bolts (17) are evenly distributed at the four corners of the motor (1).

8. A high-load permanent magnet linear stepper motor (1) according to claim 5, characterized in that: One end of the shielding cover (16) is fixedly connected to a snap ring (18), the snap ring (18) being a rubber ring, one end of the motor (1) is provided with a connecting groove (19) adapted to the snap ring (18), the inner wall of the connecting groove (19) being snap-fitted to the surface of the snap ring (18).

Images