Combined rotor structure of servo motor

Abstract

The utility model relates to the technical field of motors, in particular to a combined rotor structure of a servo motor, which comprises rotor cores, a positioning end ring, an outer end ring and a fixed shaft, a plurality of rotor cores are sleeved on the fixed shaft, the positioning end ring is sleeved on the fixed shaft, and an end groove is formed in the middle of the end face of one outer side of the positioning end ring. A plurality of clamping pieces are annularly installed in the groove wall of the end groove, and a plurality of fixing bolt grooves are annularly formed in the groove bottom of the end groove. When in use, the elastic sheet elastically deforms in the accommodating groove and is locked on the fixed shaft, so that the occurrence of polarization is reduced, and the assembly and maintenance difficulty is reduced by connecting the damping structure for insertion.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a combined rotor structure of a servo motor. Background Art

[0002] There are two types of motor rotors: inner rotor rotation and outer rotor rotation. In the inner rotor rotation, the core in the middle of the motor is the rotating body, outputting torque (referring to the motor) or inputting energy (referring to the generator). In the outer rotor rotation, the outer body of the motor is the rotating body. Different methods facilitate the application of various occasions.

[0003] At present, since most of the rotor structures of motors are divided into cage type and winding type, cage rotor asynchronous motors have simple structure, reliable operation, light weight, low price, and have been widely used. However, this rotor structure is mostly an integrated structure that cannot be disassembled and assembled. Once damaged, the maintenance cost is high, which leads to poor practicality of the motor. Therefore, those skilled in the art provide a combined rotor structure of a servo motor to solve the problems raised in the above background technology. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a combined rotor structure of a servo motor, including a rotor core, a positioning end ring, an outer end ring and a fixed shaft, wherein a plurality of rotor cores are sleeved on the fixed shaft, the positioning end ring is sleeved on the fixed shaft, an end groove is provided at the middle of the end surface of the outer side of the positioning end ring, a plurality of clamps are annularly installed in the wall of the end groove, and a plurality of fixing bolt grooves are annularly provided on the bottom of the end groove;

[0005] The left and right ends of the fixed shaft are both provided with annular damping grooves, an axial chuck is sleeved on the damping groove, a plurality of bayonet holes are provided along the edge of the axial chuck, the bayonet holes are engaged with the clamping piece, and an outer end ring is provided on the outer side of the positioning end ring;

[0006] The damping card on the outer end ring is connected to a damping disk, and a plurality of damping bayonet holes are opened on the edge of the damping disk ring, which are connected and engaged with the rotor fan blades by means of the damping bayonet holes. A plurality of latch bolts are annularly fixedly installed on the inner side of the damping disk, and a damping card block is annularly fixedly installed in the middle of the outer end surface of the damping disk, and the damping card block and the damping card slot are arranged correspondingly.

[0007] Preferably: a fixed slot piece is arranged in the slot of the rotor core, and the fixed slot piece can be replaced with a graphite bar or an aluminum bar according to the use requirements, and the left and right ends of the fixed slot piece are connected with positioning end rings.

[0008] Preferably, a plurality of positioning holes are annularly provided on the axial chuck, and the positioning holes correspond to the fixing bolt grooves.

[0009] Preferably, a plug hole is provided in the middle of the outer end ring in an annular shape, and the latch bolt passes through the positioning hole and the plug hole and is inserted into the fixing bolt groove, thereby ensuring that the rotor can rotate stably under the limiting movement of the axial chuck.

[0010] Preferably, a plurality of rotor blades are fixedly mounted along the edge of the outer end surface of the outer end ring to drive away heat for the rotation of the rotor.

[0011] Preferably, a receiving groove is provided in the middle of the inner side of the damping block, and a spring sheet is fixedly installed in the receiving groove, and the damping disc is locked on the fixed axis by the spring sheet to increase stability.

[0012] Technical effects and advantages of the utility model:

[0013] 1. When the utility model is used, the bayonet is engaged with the card piece, and the damping card block and the damping card slot are butted and slid together, so that the latch bolt passes through the positioning hole and the insertion hole and is inserted into the fixing bolt slot to ensure the stable rotation of the rotor.

[0014] 2. When the utility model is used, the spring sheet is elastically deformed in the receiving groove and locked on the fixed axis, thereby reducing the occurrence of polarization. The damping structure is connected for plugging, thereby reducing the difficulty of assembly and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure provided by this application;

[0016] Figure 2 It is a structural schematic diagram of the positioning end ring provided by the present application;

[0017] Figure 3 It is a schematic diagram of the structure of the fixed axis provided by the present application;

[0018] Figure 4 It is a structural schematic diagram of the accommodating tank provided in this application;

[0019] In the figure: 1, rotor core; 2, fixed slot; 3, positioning end ring; 4, end slot; 5, clamp; 6, fixing bolt slot; 7, outer end ring; 8, rotor fan blade; 9, plug hole; 10, fixed axis; 11, damping clamping slot; 12, axial clamping disc; 13, clamping mouth; 14, positioning hole; 15, damping disc; 16, damping clamping mouth; 17, latch bolt; 18, damping clamping block; 19, receiving groove; 20, spring piece. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0021] See also Figures 1 to 4 In this embodiment, a combined rotor structure of a servo motor is provided, including a rotor core 1, a positioning end ring 3, an outer end ring 7 and a fixed shaft 10, wherein the fixed shaft 10 is sleeved with a plurality of rotor cores 1, a fixed slot part 2 is arranged in the slot of the rotor core 1, and the fixed slot part 2 can be replaced with a graphite bar or an aluminum condition according to the use requirements, and the left and right ends of the fixed slot part 2 are connected with positioning end rings 3, and the positioning end ring 3 is sleeved on the fixed shaft 10, and an end groove 4 is provided at the middle of the end surface on the outer side of the positioning end ring 3, and a plurality of clamping parts 5 are annularly installed in the groove wall of the end groove 4, and a plurality of fixing bolt grooves 6 are annularly provided on the groove bottom of the end groove 4;

[0022] The left and right ends of the fixed shaft 10 are both provided with a damping card slot 11 in an annular shape, an axial chuck 12 is sleeved on the damping card slot 11, a plurality of positioning holes 14 are provided in an annular shape on the axial chuck 12, a plurality of bayonet holes 13 are provided along the edge of the axial chuck 12, the bayonet holes 13 are engaged with the clamping member 5, so that the positioning holes 14 correspond to the fixing bolt slot 6, an outer end ring 7 is provided on the outer side of the positioning end ring 3, a plug hole 9 is provided in an annular shape in the middle of the outer end ring 7, and a plurality of rotor fan blades 8 are fixedly installed along the edge of the outer end surface of the outer end ring 7 to drive away heat for the rotation of the rotor;

[0023] The damping card on the outer end ring 7 is connected with a damping disk 15, and a plurality of damping bayonet holes 16 are provided on the ring edge of the damping disk 15, and the damping bayonet holes 16 are used to dock and engage with the rotor fan blades 8. A plurality of latch bolts 17 are annularly fixedly installed on the inner side of the damping disk 15, and the latch bolts 17 pass through the positioning holes 14 and the insertion holes 9 and are inserted into the fixing bolt grooves 6, so as to ensure that the rotor can rotate stably under the limiting movement of the axial chuck 12, and a damping card block 18 is annularly fixedly installed in the middle of the outer end surface of the damping disk 15, and the damping card block 18 is arranged corresponding to the damping card groove 11, and a receiving groove 19 is provided in the middle of the inner side of the damping card block 18, and a spring piece 20 is fixedly installed in the receiving groove 19, and the damping disk 15 is locked on the fixed shaft 10 by the spring piece 20 to increase stability.

[0024] The working principle of the utility model is:

[0025] When the utility model is used, a plurality of rotor cores 1 are assembled and sleeved on the fixed shaft 10 through the fixed groove member 2 and the positioning end ring 3, and the axial chuck 12 and the damping groove 11 are slidably assembled into the end groove 4, and are engaged with the clamping member 5 through the bayonet 13, so that the fixed shaft 10 rotates while driving the axial chuck 12 to force the components of the rotor core 1 and the positioning end ring 3 to rotate synchronously, and then the rotor fan blades 8 on the outer end ring 7 are damped and docked with the damping bayonet 16 on the damping disk 15, and then the damping card block 18 and the damping groove 11 are docked and slid, so that the damping disk 15 is placed on the outer side of the positioning end ring 3. At this time, the latch bolt 17 passes through the positioning hole 14 and the insertion hole 9 and is inserted into the fixing bolt groove 6 to ensure the stability of the rotor rotation, and the spring sheet 20 is elastically deformed in the accommodating groove 19 and locked on the fixed shaft 10 to reduce the occurrence of polarization, and the damping structure is connected for plugging to reduce the difficulty of assembly and maintenance.

[0026] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A combined rotor structure of a servo motor, comprising a rotor core (1), a positioning end ring (3), an outer end ring (7) and a fixed shaft (10), characterized in that: A plurality of rotor cores (1) are sleeved on the fixed shaft (10), a positioning end ring (3) is sleeved on the fixed shaft (10), an end groove (4) is provided at the middle of the end surface on the outer side of the positioning end ring (3), a plurality of clamping members (5) are annularly installed in the groove wall of the end groove (4), and a plurality of fixing bolt grooves (6) are annularly provided on the groove bottom of the end groove (4); The left and right ends of the fixed shaft (10) are both provided with annular damping grooves (11), an axial chuck (12) is sleeved on the damping groove (11), a plurality of bayonet holes (13) are provided along the edge of the axial chuck (12), the bayonet holes (13) are engaged with the clamping member (5), and an outer end ring (7) is provided on the outer side of the positioning end ring (3); The outer end ring (7) is connected to a damping plate (15) by a damping card. The damping plate (15) is provided with a plurality of damping card slots (16) on the ring edge. The damping card slots (16) are butt-engaged with the rotor fan blades (8). A plurality of latch bolts (17) are fixedly mounted in an annular shape on the inner side of the damping plate (15). A damping card block (18) is fixedly mounted in an annular shape on the middle part of the outer end surface of the damping plate (15). The damping card block (18) is arranged correspondingly to the damping card slot (11).

2. The combined rotor structure of a servo motor according to claim 1, characterized in that: A fixed slot component (2) is arranged in the slot of the rotor core (1), and positioning end rings (3) are connected to the left and right ends of the fixed slot component (2).

3. The combined rotor structure of a servo motor according to claim 1, characterized in that: The axial chuck (12) is provided with a plurality of positioning holes (14) in an annular shape, and the positioning holes (14) correspond to the fixing bolt grooves (6).

4. The combined rotor structure of a servo motor according to claim 3, characterized in that: The outer end ring (7) has an annular insertion hole (9) in the middle, and the latch bolt (17) passes through the positioning hole (14) and the insertion hole (9) and is then inserted into the fixing bolt groove (6).

5. The combined rotor structure of a servo motor according to claim 4, characterized in that: A plurality of rotor blades (8) are fixedly mounted along the edge of the outer end surface of the outer end ring (7) to drive away heat when the rotor rotates.

6. The combined rotor structure of a servo motor according to claim 1, characterized in that: A receiving groove (19) is provided in the middle of the inner side of the damping block (18), and a spring piece (20) is fixedly installed in the receiving groove (19).

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