Motor rotor capable of preventing generation of cracks

Abstract

The utility model discloses an anti-crack motor rotor comprising a rotor body, the surface of the rotor body is provided with a mounting hole, the interior of the mounting hole is provided with a shaft rod, the surface of the rotor body is provided with a plurality of strip-shaped grooves, the interior of each of the plurality of strip-shaped grooves is provided with two locking assemblies, and the locking assemblies are connected with the shaft rod. A plurality of through grooves are formed in the two ends of the rotor body in a penetrating mode, a plurality of first heat dissipation openings are formed in the surface of the rotor body, the plurality of first heat dissipation openings correspond to the plurality of through grooves, and a plurality of second heat dissipation openings are formed in the inner side walls of the plurality of through grooves. According to the utility model, through the arrangement of the first heat dissipation ports, the second heat dissipation ports, the strip-shaped grooves and the through grooves, air circulation is carried out under the action of the first heat dissipation ports, the second heat dissipation ports and the through grooves, and heat dissipation can be carried out in time when the electronic rotor operates at a high temperature, thereby improving the performance of the material of the rotor body, effectively preventing the rotor body from cracking during operation, and improving the service life of the rotor body. And the practicability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of motor rotors, in particular to a motor rotor capable of preventing cracks from occurring. Background Art

[0002] A rotor is a rotating object supported by bearings. Objects without their own rotational axis, such as optical discs, can be considered rotors when they are rigidly connected or have an attached shaft. According to ISO standards, a rotating object supported by bearings is called a rotor. Rotors are the primary rotating components in power and working machinery.

[0003] In the prior art, a motor rotor generates high temperature when rotating for a long time. If the rotor is not cooled down quickly in time, the rotor will expand and generate internal force when running under high temperature, which will exceed the ultimate strength of the rotor and cause cracks. In order to solve this problem, a motor rotor that prevents cracks is proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the motor rotor is prone to cracks due to poor heat dissipation effect after long-term rotation.

[0005] To solve the above technical problems, the present invention adopts a technical solution: providing a motor rotor that prevents cracks from occurring, comprising a rotor body, a mounting hole being formed on the surface of the rotor body, a shaft being mounted inside the mounting hole, a plurality of strip grooves being formed on the surface of the rotor body, two locking assemblies being disposed inside each of the plurality of strip grooves, and a plurality of through grooves being formed through both ends of the rotor body;

[0006] A plurality of first heat dissipation openings are provided on the surface of the rotor body, and the plurality of first heat dissipation openings correspond to the plurality of through slots. A plurality of second heat dissipation openings are provided on the inner side walls of the plurality of through slots. A plurality of guard rings are evenly sleeved and fixedly connected on the outer surface of the rotor body.

[0007] Preferably, two mounting grooves are symmetrically provided on the inner side wall of the mounting hole, and the outer surface of the shaft rod is fixedly connected to two slide bars, and the outer surfaces of the two slide bars are slidably mounted to the inside of the two mounting grooves. The slide bars are mounted to the inside of the mounting grooves, which facilitates the rapid assembly of the shaft rod to the inside of the mounting hole, while ensuring improved stability when the rotor body rotates.

[0008] Preferably, a plurality of the locking assemblies include connecting holes, which are arranged on the surface of the shaft rod, and two studs are installed inside the strip grooves. One end of the two studs passes through the rotor body and extends to the inside of the mounting hole and is threadedly connected to the connecting hole. The studs are installed inside the connecting hole to facilitate locking and fixing the installed shaft rod.

[0009] Preferably, a mounting plate is fixedly connected to the surface of each of the plurality of studs, and a regular hexagonal groove is provided on the surface of each of the plurality of mounting plates. By utilizing the regular hexagonal groove provided on the surface of the mounting plate and utilizing the installation tool to form a larger contact area with the stud head, torque can be effectively transmitted, the risk of slipping can be avoided, and the stud is easier to tighten.

[0010] Preferably, the plurality of first heat dissipation openings are interconnected with the plurality of through slots, and the plurality of second heat dissipation openings are interconnected with the mounting holes, ensuring air circulation therebetween, thereby improving the heat dissipation effect of the electronic rotor at high temperatures.

[0011] Preferably, a gasket is installed on the outer sleeve of the plurality of studs, and one surface side of the gasket is in contact with one surface side of the mounting plate. The gasket can effectively absorb part of the vibration and prevent the studs from loosening.

[0012] Preferably, the plurality of guard rings include a ring body and a wear-resistant layer, the wear-resistant layer is fixedly connected to the outer surface of the ring body, and the wear-resistant layer is made of high manganese steel material. The provided guard rings can increase the structural strength and stability of the rotor body, and the high manganese steel material is used on the outside to increase the wear resistance, which can effectively prevent the rotor body from cracking when rotating at high speed.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The utility model provides a first heat dissipation port, a second heat dissipation port, a strip groove and a through groove, and utilizes the first heat dissipation port, the second heat dissipation port and the through groove to circulate air, so that heat can be dissipated in time when the electronic rotor is running at high temperature, thereby improving the performance of the rotor body material itself, effectively avoiding cracks in the rotor body during operation, and having stronger practicality.

[0015] 2. The utility model provides a guard ring, which can increase the structural strength and stability of the rotor body. The high manganese steel material is used on the exterior to increase wear resistance, which can effectively prevent the rotor body from cracking when rotating at high speed.

[0016] 3. The utility model provides a locking assembly, a connecting hole, a mounting plate and a regular hexagonal groove, and utilizes a threaded connection between a stud and the connecting hole to make the shaft more secure after installation, thereby improving the safety of the electronic rotor during use and making it more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional diagram of a motor rotor that prevents cracks from occurring according to the present invention;

[0018] Figure 2 This is a schematic structural diagram of a shaft rod of a motor rotor that prevents cracks from occurring according to the present invention;

[0019] Figure 3 This is a schematic structural diagram of a first-view locking assembly for a motor rotor that prevents cracks from occurring according to the present invention;

[0020] Figure 4 This is a second-view structural diagram of a locking assembly for preventing cracks from forming on a motor rotor according to the present invention.

[0021] Figure 5 For this utility model Figure 1 Enlarged view of point A in the middle;

[0022] Figure 6 The utility model is a schematic diagram of the internal structure of a protective ring of a motor rotor for preventing cracks from occurring.

[0023] In the figure: 1. Second heat dissipation port; 2. Rotor body; 3. Mounting hole; 4. Strip groove; 5. First heat dissipation port; 6. Shaft; 7. Through groove; 8. Slide bar; 9. Connecting hole; 10. Regular hexagonal groove; 11. Mounting plate; 12. Stud; 13. Gasket; 14. Mounting groove; 15. Guard ring; 151. Wear-resistant layer; 152. Ring body. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0025] See also Figures 1 to 6 A motor rotor for preventing cracks from occurring includes a rotor body 2. A mounting hole 3 is provided on the surface of the rotor body 2. The mounting hole 3 is conducive to assembling with a suitable rotor body 2. A shaft rod 6 is installed inside the mounting hole 3 to facilitate the installation of the shaft rod 6 into the mounting hole 3. A plurality of strip grooves 4 are provided on the surface of the rotor body 2. Two locking assemblies are provided inside each of the plurality of strip grooves 4 to lock and fix the installed shaft rod 6 to prevent loosening during operation. A plurality of through slots 7 are provided at both ends of the rotor body 2.

[0026] A plurality of first heat dissipation openings 5 ​​are provided on the surface of the rotor body 2, and the plurality of first heat dissipation openings 5 ​​correspond to the plurality of through slots 7, and a plurality of second heat dissipation openings 1 are provided on the inner side walls of the plurality of through slots 7. A plurality of guard rings 15 are evenly sleeved and fixedly connected on the outer surface of the rotor body 2, and the plurality of first heat dissipation openings 5 ​​are interconnected with the plurality of through slots 7, and the plurality of second heat dissipation openings 1 are interconnected with the mounting holes 3. Air circulation is carried out by utilizing the first heat dissipation openings 5, the second heat dissipation openings 1 and the through slots 7, so that heat can be dissipated in time when the rotor body 2 is running at a high temperature, thereby avoiding the occurrence of cracks in the rotor body 2 under continuous rotation. The plurality of guard rings 15 all include a ring body 152 and a wear-resistant layer 151, and the wear-resistant layer 151 is fixedly connected to the outer surface of the ring body 152. The wear-resistant layer 151 is made of high manganese steel material. The provided guard rings 15 can increase the structural strength and stability of the rotor body 2, and the external wear-resistant layer 151 is made of high manganese steel material to increase wear resistance, which can effectively prevent the occurrence of cracks in the rotor body 2 due to high-speed rotation.

[0027] like Figures 3 to 5 As shown, the inner side wall of the mounting hole 3 is symmetrically provided with two mounting grooves 14, the outer surface of the shaft rod 6 is fixedly connected to two slide bars 8, the outer surfaces of the two slide bars 8 are slidably mounted to the inside of the two mounting grooves 14, and the slide bars 8 are mounted to the inside of the mounting grooves 14, so as to facilitate the rapid assembly of the shaft rod 6 to the inside of the mounting hole 3, while ensuring the stability when the rotor body 2 rotates. A plurality of locking components include connecting holes 9, and the connecting holes 9 are provided on the surface of the shaft rod 6. Two studs 12 are installed inside the strip grooves 4, and one end of the two studs 12 passes through the rotor body 2 and extends to the inside of the mounting hole 3 and is threadedly connected to the connecting hole 9. The studs 12 are mounted to the inside of the connecting hole 9, which facilitates the installation of the shaft rod 6. The rotor body 2 is locked and fixed. When the rotor body 2 needs to be replaced, it is only necessary to remove the studs 12 to achieve the removal of the rotor body 2. The surfaces of the multiple studs 12 are fixedly connected to the mounting plates 11. The surfaces of the multiple mounting plates 11 are provided with regular hexagonal grooves 10. The regular hexagonal grooves 10 provided on the surface of the mounting plate 11 are used to form a larger contact area with the head of the stud 12 using the mounting tool, which can effectively transmit torque and avoid the risk of slipping, making the stud 12 easier to tighten. The external sleeves of the multiple studs 12 are installed with gaskets 13, and one side of the surface of the gasket 13 is in contact with one side of the surface of the mounting plate 11. The gasket 13 can effectively absorb part of the vibration to prevent the stud 12 from loosening.

[0028] When the present invention is in use, when installing the shaft rod 6, first use the slide bar 8 to slide and install it into the inside of the installation groove 14. After the shaft rod 6 is installed to the appropriate position of the installation hole 3, the stud 12 is used to threadedly connect with the connecting hole 9 through the strip groove 4, so that the rotor body 2 and the shaft rod 6 can be quickly fixed after installation, and the firmness after installation is improved. During the high-speed operation of the rotor, air circulation is carried out under the action of the first heat dissipation port 5, the second heat dissipation port 1 and the through groove 7, and heat can be dissipated in time when the rotor body 2 is running at high temperature, avoiding the phenomenon of cracks in the rotor body 2 under continuous rotation, and the practicality is stronger.

[0029] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A motor rotor for preventing cracks from occurring, comprising a rotor body (2), characterized in that: A mounting hole (3) is provided on the surface of the rotor body (2), a shaft (6) is installed inside the mounting hole (3), a plurality of strip grooves (4) are provided on the surface of the rotor body (2), two locking assemblies are provided inside each of the plurality of strip grooves (4), and a plurality of through grooves (7) are provided through both ends of the rotor body (2); A plurality of first heat dissipation openings (5) are provided on the surface of the rotor body (2), the plurality of first heat dissipation openings (5) correspond to the plurality of through slots (7), a plurality of second heat dissipation openings (1) are provided on the inner side walls of the plurality of through slots (7), and a plurality of guard rings (15) are evenly sleeved and fixedly connected on the outer surface of the rotor body (2).

2. The crack-resistant motor rotor according to claim 1, characterized in that: Two mounting grooves (14) are symmetrically formed on the inner side wall of the mounting hole (3); the outer surface of the shaft rod (6) is fixedly connected to two slide bars (8); and the outer surfaces of the two slide bars (8) are slidably mounted inside the two mounting grooves (14).

3. The crack-resistant motor rotor according to claim 1, characterized in that: The plurality of locking assemblies each include a connecting hole (9), the connecting hole (9) being arranged on the surface of the shaft (6), two studs (12) being installed inside the strip-shaped groove (4), one end of the two studs (12) passing through the rotor body (2) and extending to the inside of the mounting hole (3) to be threadedly connected to the connecting hole (9).

4. The crack-resistant motor rotor according to claim 3, characterized in that: The surfaces of the plurality of studs (12) are all fixedly connected with mounting plates (11), and the surfaces of the plurality of mounting plates (11) are all provided with regular hexagonal grooves (10).

5. The crack-resistant motor rotor according to claim 1, characterized in that: The plurality of first heat dissipation openings (5) are in communication with the plurality of through slots (7), and the plurality of second heat dissipation openings (1) are in communication with the mounting holes (3).

6. The crack-resistant motor rotor according to claim 3, characterized in that: A gasket (13) is sleeved and installed on the exterior of the plurality of studs (12), and one surface of the gasket (13) is in contact with one surface of the mounting plate (11).

7. The crack-resistant motor rotor according to claim 1, characterized in that: The plurality of guard rings (15) each comprise a collar body (152) and a wear-resistant layer (151), wherein the wear-resistant layer (151) is fixedly connected to the outer surface of the collar body (152), and the wear-resistant layer (151) is made of high manganese steel.

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