A stable and reliable motor rotor

Abstract

The utility model discloses a kind of stable reliable motor rotor, it is related to motor rotor field, including main rotating shaft and peripheral fixed ring, the outer surface of main rotating shaft is equipped with fixed nesting layer, and the outer surface of fixed nesting layer is equipped with the fixed embedded sliding mechanism to the fixed two ends extruding rod, the embedded sliding mechanism includes lower end embedded rod, and the inside of lower end embedded rod is equipped with stable extension rod, the lower surface of main rotating shaft is equipped with resistance support plate.This stable reliable motor rotor, when preliminary stable installation operation is carried out to whole equipment, directly complete fixed by moving along the inside of vertical limit inner groove two ends extruding rod, push resistance support plate upwards so that left and right butt joint rod passes through butt joint sliding inner groove and carries out butt joint work to corresponding two groups two ends extruding rod, reach the upper end stability of equipment, such design makes that the fixation between parts when rotating speed is very fast does not appear loose condition, leading to stability improvement in movement process.

Description

Technical Field

[0001] This utility model relates to the field of motor rotor technology, specifically to a stable and reliable motor rotor. Background Technology

[0002] Electric motors are a crucial component of new energy vehicles, generating torque to drive the car. Most drive motors in new energy vehicles are permanent magnet motors, where the rotor is equipped with permanent magnets that generate a magnetic field. This magnetic field interacts with the magnetic field generated by the stator windings, producing electromagnetic torque that drives the rotor to rotate.

[0003] During the manufacturing process, threaded holes need to be drilled on the side of the rotor core, which increases manufacturing costs. When the rotor rotation speed does not exceed 250 rpm, this structure can still meet the usage requirements, but when it exceeds this speed, it will increase the risk of magnetic pole pieces falling off. At the same time, after high-speed operation, the back electromotive force of the motor increases, which will reduce the motor performance and prevent the permanent magnet motor from maximizing its characteristics and improving operating efficiency. The magnetic pole pieces are too long, which increases manufacturing costs and reduces its yield.

[0004] To overcome the aforementioned deficiencies, existing technology (Chinese Patent Publication No.: CN220307016U, application date: 2024-04-19) discloses a motor rotor unit and a motor rotor structure having the same. This motor rotor unit includes: a rotor core with several limiting bosses of greater outer circumference than inner circumference along the length of the magnetic pole pieces. The circumferential side of each limiting boss forms a limiting groove recessed into the surface of the rotor core at their intersection. Magnetic pole pieces are inserted between adjacent limiting bosses, with limiting portions extending into the limiting grooves on their sides. The magnetic pole pieces can be easily and securely connected to the rotor core. The motor rotor structure assembled using this motor rotor unit also exhibits good stability in its individual magnetic pole pieces, preventing loosening and detachment during operation.

[0005] While the above design can solve the aforementioned problems, it requires assembly and has insufficient stability. During rotation, the high speed may cause the parts to loosen, resulting in instability during movement. Furthermore, the transmission efficiency between parts is insufficient during continuous rotation in the same direction, preventing efficient internal transmission and leading to insufficient energy efficiency in actual use. Utility Model Content

[0006] The purpose of this invention is to provide a stable and reliable motor rotor to solve the problems mentioned in the background art, such as insufficient stability during assembly operations, loosening of the fixing between parts due to excessive speed during rotation, resulting in instability during movement, insufficient transmission efficiency between parts during continuous rotation in the same direction, and inability to perform efficient internal transmission work, leading to insufficient energy efficiency in actual use.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a stable and reliable motor rotor, comprising a main shaft and an outer fixing ring. A fixing nesting layer is installed on the outer surface of the main shaft, and an engagement sliding mechanism for fixing the two end pressing rods is installed on the outer surface of the fixing nesting layer. The engagement sliding mechanism includes a lower engagement rod, and a stabilizing extension rod is installed inside the lower engagement rod. An abutment support plate is installed on the lower surface of the main shaft, and the stabilizing extension rod is fixedly installed on the upper surface of the abutment support plate. A rotation stabilizing ring is installed on the outer surface of the two end pressing rods, and a docking fixing mechanism for fixing the lower engagement rod is installed inside the rotation stabilizing ring.

[0008] Furthermore, the docking and fixing mechanism includes an L-shaped interlocking plate, which is fixedly installed on the inner surface of the rotating stabilizing ring. The side of the stabilizing extension rod is provided with a rotating docking groove, and the opening position of the rotating docking groove corresponds to the installation position of the L-shaped interlocking plate.

[0009] Furthermore, an extension fixing rod is installed on the lower surface of the outer fixing ring, and an abutting fitting plate is installed on the outer surface of the extension fixing rod. The extension fixing rod passes through the interior of the rotation stabilizing ring, and the two sets of abutting fitting plates abut against the upper and lower sides of the rotation stabilizing ring respectively.

[0010] Furthermore, the outer surface of the stabilizing extension rod abuts against the outer surface of the two end extrusion rods, and the vertical limiting inner groove of the fixed nesting layer is fixed. The two end extrusion rods are slidably installed inside the vertical limiting inner groove, and two sets of left and right connecting rods are installed abutting against the upper surface of the support plate.

[0011] Furthermore, the upper surfaces of the two end extrusion rods are provided with docking sliding inner grooves, and the left and right docking rods are slidably installed inside the docking sliding inner grooves. The inner surface of the stabilizing extension rod abuts against the outer surface of the two end extrusion rods, and the outer fixing ring is nested and installed on the outer surface of the two end extrusion rods.

[0012] Furthermore, the two sets of left and right connecting rods respectively use two sets of connecting sliding inner grooves to stably nest the two end extrusion rods, and the contact support plate, left and right connecting rods and stabilizing extension rods are integrated into one design.

[0013] Furthermore, a meshing connecting frame is installed on the lower surface of the rotating stabilizing ring, and a lower end fitting rod is installed on the outer surface of the two end extrusion rods. The lower end fitting rod and the meshing connecting frame fit together, and the rotation trajectory of the L-shaped meshing plate corresponds to the opening position of the rotating docking groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the stable and reliable motor rotor, when the overall equipment needs to be initially stabilized during installation, can be fixed by moving the two end pressing rods along the inside of the vertical limiting groove, and pushing the abutment support plate upward so that the left and right docking rods pass through the docking sliding groove to dock the corresponding two sets of end pressing rods, thus achieving the stability of the upper end of the equipment. This design ensures that the fixation between parts will not become loose when the rotation speed is very fast, resulting in improved stability during movement.

[0015] Furthermore, after stabilizing the upper end, the rotating stabilizing ring is slidably installed upwards and rotated to the right. At this time, the rotating docking groove will form a transverse docking with the L-shaped interlocking plate, and the two sets of abutting interlocking plates will also abut the upper and lower sides of the rotating stabilizing ring, making the transmission efficiency between parts higher during the continuous rotation in the same direction, and improving the transmission efficiency of internal parts.

[0016] Furthermore, the rotation of the stabilizing ring will drive the meshing connecting frame, and after rotating to its limit, it will be nested and fixed with the lower fitting rod, making the docking connection between the two end pressing rods and the stabilizing ring more stable, ensuring that the transmission of each part is more efficient during the Games. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the fixed nested layer three-dimensional structure of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the extension fixing rod of this utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the vertical limiting inner groove of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the two-end extrusion rods of this utility model;

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of the interlocking plate of this utility model;

[0022] Figure 6 This is a three-dimensional structural diagram of the contact support plate of this utility model.

[0023] In the diagram: 1. Main shaft; 2. Fixed nesting layer; 3. End compression rods; 4. Outer fixing ring; 5. Abutting support plate; 6. Left and right docking rods; 7. Lower fitting rod; 8. Dating sliding inner groove; 9. Extension fixing rod; 10. Abutting fitting plate; 11. Rotation stabilizing ring; 12. Serial inner groove; 13. Engaging connecting frame; 14. Vertical limiting inner groove; 15. Stabilizing extension rod; 16. Rotation docking groove; 17. L-shaped engagement plate. Detailed Implementation

[0024] 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.

[0025] Example 1: Please refer to Figures 1-6 The present invention provides the following technical solution: a stable and reliable motor rotor, including a main rotating shaft 1 and an outer fixing ring 4. A fixing nesting layer 2 is installed on the outer surface of the main rotating shaft 1, and an interlocking sliding mechanism for fixing the two end pressing rods 3 is installed on the outer surface of the fixing nesting layer 2. The interlocking sliding mechanism includes a lower end interlocking rod 7, and a stabilizing extension rod 15 is installed inside the lower end interlocking rod 7. An abutting support plate 5 is installed on the lower surface of the main rotating shaft 1, and the stabilizing extension rod 15 is fixedly installed on the upper surface of the abutting support plate 5. A rotation stabilizing ring 11 is installed on the outer surface of the two end pressing rods 3, and a docking fixing mechanism for fixing the lower end interlocking rod 7 is installed inside the rotation stabilizing ring 11.

[0026] like Figure 2 , Figure 3 , Figure 4 The technical solution shown herein, in order to solve the problem of inconvenient manual maintenance in the event of a malfunction, discloses the following: the outer surface of the stabilizing extension rod 15 abuts against the outer surface of the two end extrusion rods 3, and the vertical limiting inner groove 14 of the fixed nesting layer 2 is fixed. The two end extrusion rods 3 are slidably installed inside the vertical limiting inner groove 14, and two sets of left and right docking rods 6 are installed on the upper surface of the support plate 5. The upper surface of the two end extrusion rods 3 is provided with a docking sliding inner groove 8, and the left and right docking rods 6 are slidably installed inside the docking sliding inner groove 8. The inner surface of the stabilizing extension rod 15 abuts against the outer surface of the two end extrusion rods 3, and the outer fixing ring 4 is nested on the outer surface of the two end extrusion rods 3. The two sets of left and right docking rods 6 respectively stabilize and nest the two end extrusion rods 3 through the two sets of docking sliding inner grooves 8, and the abutting support plate 5, the left and right docking rods 6 and the stabilizing extension rod 15 are integrated into one piece.

[0027] When a stable upper-end overall fixation operation is required for the equipment, firstly, externally fix the main rotating shaft 1 to the fixed nesting layer 2. Push the two end pressing rods 3 upward along the outside of the fixed nesting layer 2 to complete the fitting movement. The two end pressing rods 3 will slide vertically along the vertical limiting grooves 14 corresponding to the outer surface of the fixed nesting layer 2 until the fixed nesting layer 2 and the two end pressing rods 3 are fully connected. At this time, slide the two end pressing rods 3 upward along the lower end to abut against the support plate 5, so that the stabilizing extension rod 15 fixedly installed above the support plate 5 moves upward synchronously. After the stabilizing extension rod 15 completes the sliding installation, it will be in contact with the outside of the two sets of two end pressing rods 3. The two sets of end-pressing rods 3 are connected in the same way, and in the process, they are pressed inward to make them more stable. As the support plate 5 moves upward, the left and right docking rods 6 fixed on the upper surface also move vertically upward. During the movement, the left and right docking rods 6 pass through the docking sliding inner grooves 8 opened at the corresponding positions on the outer surface of the end-pressing rods 3. The two sets of end-pressing rods 3 will be connected in series with the two sets of docking sliding inner grooves 8, so that the connection and fit of the four sets of end-pressing rods 3 is more stable. After the four sets of end-pressing rods 3 are fixed, the upper and lower end fitting rods 7 are slidably installed along the outer surface of the end-pressing rods 3 and the stabilizing extension rod 15, so that the upper end is initially stabilized, making the connection of the equipment tighter.

[0028] Example 2: Figure 2 , Figure 3 , Figure 4 The technical solution shown, in order to solve the problem of inconvenient manual maintenance in case of failure, discloses the following: The docking and fixing mechanism includes an L-shaped biting plate 17, which is fixedly installed on the inner surface of the rotating stabilizing ring 11. The side of the stabilizing extension rod 15 is provided with a rotating docking groove 16, and the opening position of the rotating docking groove 16 corresponds to the installation position of the L-shaped biting plate 17. The lower surface of the outer fixing ring 4 is provided with an extension fixing rod 9, and the outer surface of the extension fixing rod 9 is provided with an abutting fitting plate 10. The extension fixing rod 9 passes through the interior of the rotating stabilizing ring 11, and the two sets of abutting fitting plates 10 abut against the upper and lower sides of the rotating stabilizing ring 11 respectively. The lower surface of the rotating stabilizing ring 11 is provided with a biting connecting frame 13, and the outer surface of the two end pressing rods 3 is provided with a lower end fitting rod 7. The lower end fitting rod 7 and the biting connecting frame 13 are mutually fitted, and the rotation trajectory of the L-shaped biting plate 17 corresponds to the opening position of the rotating docking groove 16.

[0029] After the initial stabilization operation at the upper end of the equipment is completed, the rotating stabilizing ring 11 is slidably installed on the outer surface of the two end pressing rods 3 and the stabilizing extension rod 15. As the rotating stabilizing ring 11 moves, the L-shaped interlocking plate 17 fixedly installed inside also moves upward until the L-shaped interlocking plate 17 moves to the corresponding position of the stabilizing extension rod 15. At this time, the rotating stabilizing ring 11 is rotated to the right as a whole, so that the L-shaped interlocking plate 17 enters the interior of the rotating docking groove 16 opened at the corresponding position on the side of the stabilizing extension rod 15. At this time, the rotating docking groove 16 stabilizes and limits the vertical movement of the stabilizing extension rod 15. During the upward vertical sliding of the rotating stabilizing ring 11, it will pass through the extension fixing rod 9, and the rotating stabilizing ring 11 will rotate... During the rotation, the two sets of abutting plates 10 fixedly installed on the outer surface of the extension fixing rod 9 remain unchanged. After the rotation is completed, the two sets of abutting plates 10 will abut against the upper and lower sides of the rotation stabilizing ring 11 respectively. Since the extension fixing rod 9 is fixedly installed on the lower surface of the lower fitting rod 7, the extension fixing rod 9 will get a relative lower support effect due to the support of the abutting plates 10. When the rotation stabilizing ring 11 rotates, the biting connecting frame 13 fixedly installed on the lower surface will rotate synchronously. After the rotation is completed, the biting connecting frame 13 will abut against the lower fitting rod 7 and nest and bite with it, so that the two end squeezing rods 3 and the rotation stabilizing ring 11 maintain a stable connection with each other, and the connection strength is better when working.

[0030] 1. Main rotating shaft; 2. Fixed nesting layer; 3. End compression rods; 4. Outer fixing ring; 5. Abutting support plate; 6. Left and right mating rods; 7. Lower end fitting rod; 8. Abutting sliding inner groove; 9. Extension fixing rod; 10. Abutting fitting plate; 11. Rotational stabilizing ring; 12. Serial connecting inner groove; 13. Engaging connecting frame; 14. Vertical limiting inner groove; 15. Stabilizing extension rod; 16. Rotational mating groove; 17. L-shaped engagement plate.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A stable and reliable motor rotor, comprising a main shaft (1) and an outer fixing ring (4), wherein a fixing nesting layer (2) is installed on the outer surface of the main shaft (1), and an interlocking sliding mechanism for fixing the two end pressing rods (3) is installed on the outer surface of the fixing nesting layer (2); Its features are: The fitting sliding mechanism includes a lower fitting rod (7), and a stabilizing extension rod (15) is installed inside the lower fitting rod (7). A contact support plate (5) is installed on the lower surface of the main rotating shaft (1), and the stabilizing extension rod (15) is fixedly installed on the upper surface of the contact support plate (5). A rotation stabilizing ring (11) is installed on the outer surface of the two end squeezing rods (3), and a docking fixing mechanism for fixing the lower fitting rod (7) is installed inside the rotation stabilizing ring (11).

2. A stable and reliable motor rotor according to claim 1, characterized in that: The docking and fixing mechanism includes an L-shaped biting plate (17), and the L-shaped biting plate (17) is fixedly installed on the inner surface of the rotating stabilizing ring (11). The side of the stabilizing extension rod (15) is provided with a rotating docking groove (16), and the opening position of the rotating docking groove (16) corresponds to the installation position of the L-shaped biting plate (17).

3. A stable and reliable motor rotor according to claim 2, characterized in that: An extension fixing rod (9) is installed on the lower surface of the outer fixing ring (4), and an abutting fitting plate (10) is installed on the outer surface of the extension fixing rod (9). The extension fixing rod (9) passes through the interior of the rotation stabilizing ring (11), and the two sets of abutting fitting plates (10) abut against the upper and lower sides of the rotation stabilizing ring (11) respectively.

4. A stable and reliable motor rotor according to claim 1, characterized in that: The outer surface of the stabilizing extension rod (15) abuts against the outer surface of the two end extrusion rods (3) and fixes the vertical limiting groove (14) of the nested layer (2). The two end extrusion rods (3) are slidably installed inside the vertical limiting groove (14) and two sets of left and right connecting rods (6) are installed on the upper surface of the support plate (5).

5. A stable and reliable motor rotor according to claim 4, characterized in that: The upper surface of the two end extrusion rods (3) is provided with a docking sliding inner groove (8), and the left and right docking rods (6) are slidably installed inside the docking sliding inner groove (8). The inner surface of the stabilizing extension rod (15) abuts against the outer surface of the two end extrusion rods (3), and the outer fixing ring (4) is nested and installed on the outer surface of the two end extrusion rods (3).

6. A stable and reliable motor rotor according to claim 5, characterized in that: The two sets of left and right connecting rods (6) respectively use two sets of connecting sliding inner grooves (8) to stably nest the two end extrusion rods (3), and the contact support plate (5), left and right connecting rods (6) and stable extension rods (15) are integrated into one design.

7. A stable and reliable motor rotor according to claim 3, characterized in that: The lower surface of the rotating stabilizing ring (11) is equipped with a biting connecting frame (13), and the outer surface of the two end pressing rods (3) is equipped with a lower end fitting rod (7). The lower end fitting rod (7) fits into the biting connecting frame (13), and the rotation trajectory of the L-shaped biting plate (17) corresponds to the opening position of the rotating docking groove (16).

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