Motor rotor magnet pressing device

Abstract

The motor rotor magnetic steel pressing device belongs to the technical field of flywheel energy storage, and the pressing-in fixing device is fixedly arranged on the motor rotor shaft, the magnetic block is arranged in the pressing-in guiding device, the pressing-in guiding device guides the magnetic block, the pressing-in force applying device applies external force to the magnetic block, and the magnetic block enters the stacked silicon steel sheets under the guidance of the pressing-in guiding device; the pressing-in fixing device is fixedly arranged on the motor rotor shaft, the pressing-in fixing device positions the pressing-in force applying device, the pressing-in precision of the magnetic block is improved, the device has a simple structure, the magnetic block can be easily pressed into the silicon steel groove, the labor is saved, and the efficiency is higher.

Description

Technical Field

[0001] This invention relates to the field of energy storage technology, and more specifically, to a motor rotor magnet pressing device. Background Technology

[0002] In practical applications, flywheel motors typically reduce eddy current losses by minimizing eddy current generation. For example, the motor rotor uses thin silicon steel sheets (0.1mm~0.5mm), unlike the stator's silicon steel core and coil winding structure. For users, assembling the motor rotor is usually not a standalone task; it requires assembly along with the motor shaft on the flywheel using a predetermined process. If the silicon steel sheets are installed one by one onto the motor shaft, considering the length and diameter of some flywheel shafts, each sheet requires crane assistance, resulting in low efficiency. Furthermore, the inconsistent positioning devices used during the installation of each silicon steel sheet significantly affect assembly accuracy. Additionally, magnets need to be inserted into the silicon steel sheets. Currently, magnets are installed by hammering into the stacked silicon steel sheets. However, due to the thickness of the stacked sheets, hammering can easily damage the magnets, reducing assembly accuracy and efficiency.

[0003] Therefore, there is an urgent need for a device for installing magnets inside silicon steel sheets on motor rotors, which can improve assembly accuracy and installation efficiency. Summary of the Invention

[0004] In view of this, the present invention proposes a method for inserting magnets into silicon steel sheets using a pressing device, thereby improving assembly efficiency and accuracy and reducing damage to the magnets.

[0005] The technical solution of the present invention is implemented as follows: a motor rotor magnet pressing device includes a motor rotor shaft and silicon steel sheets stacked around the motor rotor shaft. Silicon steel sheets are provided with silicon steel grooves. The device also includes a pressing and fixing device, a pressing force application device, and a pressing guide device. The pressing and fixing device is fixedly installed on the motor rotor shaft. A magnetic block is provided in the pressing guide device. The pressing guide device guides the magnetic block. The pressing force application device applies an external force to the magnetic block. The magnetic block enters the stacked silicon steel sheets under the guidance of the pressing guide device.

[0006] Based on the above technical solutions, preferably, the pressing guide device includes a pressing body and a pressing groove. The pressing groove is disposed on the pressing body and extends from one end of the pressing body to the other end. The magnetic block is disposed in the pressing groove.

[0007] Based on the above technical solutions, preferably, the pressing guide device further includes a pressing limiting plate, which is disposed on the pressing body. The pressing limiting plate includes an embedding part that extends into the pressing groove and is in close contact with the magnetic block.

[0008] Based on the above technical solutions, preferably, the pressing and fixing device includes a first fastening ring and a second fastening ring, the first fastening ring and the second fastening ring are arranged around the motor rotor shaft, and the first fastening ring and the second fastening ring are fastened by bolts and nuts.

[0009] Based on the above technical solutions, preferably, the pressing force application device includes a pressing fixed body, a swing rod, and a pressure rod. The pressing fixed body is fixedly installed on the pressing fixed device, one end of the swing rod is hinged to the pressing fixed body, one end of the pressure rod cooperates with the swing rod, and the other end of the pressure rod cooperates with the magnetic block.

[0010] Based on the above technical solutions, preferably, the pressing force application device further includes a guide vertical rod, a guide horizontal rod, and a sliding head. One end of the sliding head is slidably mounted on the swing rod, and the other end of the sliding head is connected to the guide vertical rod. The guide vertical rod is connected to the guide horizontal rod, and the end of the pressing rod away from the magnetic block is connected to the guide horizontal rod.

[0011] Based on the above technical solutions, preferably, the pressing force application device further includes a support guide plate and a guide cylinder. The support guide plate is fixedly installed on the pressing fixing body, the guide cylinder is installed on the support guide plate, and the guide vertical rod is sleeved inside the guide cylinder.

[0012] Based on the above technical solutions, preferably, the guide vertical rod is arranged perpendicularly to the guide horizontal rod, the pressure rod is arranged perpendicularly to the guide horizontal rod, and the pressure rod is connected to the end of the guide horizontal rod facing the motor rotor shaft.

[0013] Based on the above technical solutions, preferably, one end of the sliding head is provided with a receiving groove, the swing rod is provided in the receiving groove, the swing rod is provided with a swing groove, a first bolt is provided in the swing groove, and the first bolt is fixedly provided in the receiving groove.

[0014] The motor rotor magnet pressing device of the present invention has the following advantages over the prior art:

[0015] The pressing and fixing device is fixedly installed on the motor rotor shaft. The pressing and fixing device positions the pressing force device, improving the pressing accuracy of the magnetic block. The device has a simple structure and can easily press the magnetic block into the silicon steel groove. Pressing is more labor-saving and more efficient. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a perspective view of a motor rotor magnet pressing device according to the present invention;

[0018] Figure 2 For the present invention Figure 1 A magnified view of a portion of the image. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figure 1 and Figure 2 As shown, a motor rotor magnet pressing device includes a motor rotor shaft 8 and silicon steel sheets 3 stacked around the motor rotor shaft 8. Silicon steel sheets 3 have silicon steel grooves 31. The device also includes a pressing and fixing device 92, a pressing force application device 93, and a pressing guide device 91. The pressing and fixing device 92 is fixedly mounted on the motor rotor shaft 8. A magnetic block 101 is disposed within the pressing guide device 91, which guides the magnetic block 101. The pressing force application device 93 applies external force to the magnetic block 101, causing the magnetic block 101 to enter the stacked silicon steel sheets 3 under the guidance of the pressing guide device 91. The pressing and fixing device 92, fixedly mounted on the motor rotor shaft 8, positions the pressing force application device 93, improving the pressing accuracy of the magnetic block 101. This device has a simple structure, easily pressing the magnetic block 101 into the silicon steel grooves 31 with less effort and higher efficiency, while reducing damage to the magnetic block 101 and improving assembly accuracy.

[0021] The pressing guide device 91 includes a pressing body 911 and a pressing groove 912. The pressing groove 912 is disposed on the pressing body 911 and extends from one end of the pressing body 911 to the other end. The magnetic block 101 is disposed in the pressing groove 912.

[0022] The pressing guide device 91 also includes a pressing limiting plate 913, which is disposed on the pressing body 911. The pressing limiting plate 913 includes an embedding part 9131, which extends into the pressing groove 912 and is in close contact with the magnetic block 101.

[0023] The pressing and fixing device 92 includes a first fastening ring 921 and a second fastening ring 922, which are arranged around the motor rotor shaft 8 and are fastened by bolts and nuts.

[0024] The pressing force application device 93 includes a pressing fixing body 931, a swing rod 932, and a pressure rod 937. The pressing fixing body 931 is fixedly mounted on the pressing fixing device 92. One end of the swing rod 932 is hinged to the pressing fixing body 931. One end of the pressure rod 937 cooperates with the swing rod 932, and the other end of the pressure rod 937 cooperates with the magnetic block 101.

[0025] The pressing force application device 93 also includes a guide vertical rod 933, a guide horizontal rod 936, and a sliding head 938. One end of the sliding head 938 is slidably mounted on the swing rod 932, and the other end of the sliding head 938 is connected to the guide vertical rod 933. The guide vertical rod 933 is connected to the guide horizontal rod 936, and the end of the pressure rod 937 away from the magnetic block 101 is connected to the guide horizontal rod 936.

[0026] The pressing force application device 93 also includes a support guide plate 934 and a guide cylinder 935. The support guide plate 934 is fixedly mounted on the pressing fixing body 931, and the guide cylinder 935 is mounted on the support guide plate 934. The guide vertical rod 933 is sleeved inside the guide cylinder 935.

[0027] The guide vertical rod 933 is arranged perpendicularly to the guide horizontal rod 936, and the pressure rod 937 is arranged perpendicularly to the guide horizontal rod 936. The pressure rod 937 is connected to the end of the guide horizontal rod 936 facing the motor rotor shaft 8.

[0028] The sliding head 938 has a receiving groove 9381 at one end, the swing rod 932 is disposed in the receiving groove 9381, the swing rod 932 is provided with a swing groove 9321, the swing groove 9321 is provided with a first bolt 9382, and the first bolt 9382 is fixedly disposed on the receiving groove 9381.

[0029] A method for using a motor rotor magnet pressing device includes the following steps:

[0030] S1: The first fastening ring 921 and the second fastening ring 922 are arranged around the motor rotor shaft 8. The pressing guide device 91 is placed on the stacked silicon steel sheets 3. The pressing groove 912 is aligned with the silicon steel groove 31. A suitable pressing limit plate 913 is selected according to the size of the magnetic block 101. Then the pressing limit plate 913 is fixedly set on the pressing body 911. The first fastening ring 921 and the second fastening ring 922 are fastened together by bolts and nuts to fix the pressing force application device 93.

[0031] S2: Insert one end of the magnetic block 101 into the gap formed by the pressing limit plate 913 and the pressing groove 912, operate the swing rod 932 to transmit the downward pressing force to the pressing rod 937, and the pressing rod 937 presses the magnetic block 101 into the silicon steel groove 31.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 motor rotor magnet pressing device, comprising a motor rotor shaft (8) and silicon steel sheets (3) stacked around the motor rotor shaft (8), wherein silicon steel sheets (3) are provided with silicon steel grooves (31), characterized in that: It also includes a pressing and fixing device (92), a pressing and applying force device (93), and a pressing and guiding device (91). The pressing and fixing device (92) is fixedly installed on the motor rotor shaft (8). A magnetic block (101) is installed inside the pressing and guiding device (91). The pressing and guiding device (91) guides the magnetic block (101). The pressing and applying force device (93) applies external force to the magnetic block (101). The magnetic block (101) enters the stacked silicon steel sheets (3) under the guidance of the pressing and guiding device (91).

2. The motor rotor magnet pressing device as described in claim 1, characterized in that: The pressing guide device (91) includes a pressing body (911) and a pressing groove (912). The pressing groove (912) is disposed on the pressing body (911) and extends from one end of the pressing body (911) to the other end. The magnetic block (101) is disposed in the pressing groove (912).

3. The motor rotor magnet pressing device as described in claim 2, characterized in that: The pressing guide device (91) further includes a pressing limiting plate (913), which is disposed on the pressing body (911). The pressing limiting plate (913) includes an embedding part (9131) which extends into the pressing groove (912) and is in close contact with the magnetic block (101).

4. The motor rotor magnet pressing device as described in claim 1, characterized in that: The press-fit fixing device (92) includes a first fastening ring (921) and a second fastening ring (922), which are arranged around the motor rotor shaft (8) and are fastened by bolts and nuts.

5. The motor rotor magnet pressing device as described in claim 1, characterized in that: The pressing force application device (93) includes a pressing fixing body (931), a swing rod (932) and a pressure rod (937). The pressing fixing body (931) is fixedly installed on the pressing fixing device (92). One end of the swing rod (932) is hinged to the pressing fixing body (931). One end of the pressure rod (937) cooperates with the swing rod (932), and the other end of the pressure rod (937) cooperates with the magnetic block (101).

6. The motor rotor magnet pressing device as described in claim 5, characterized in that: The pressing force application device (93) further includes a guide vertical rod (933), a guide horizontal rod (936), and a sliding head (938). One end of the sliding head (938) is slidably mounted on the swing rod (932), and the other end of the sliding head (938) is connected to the guide vertical rod (933). The guide vertical rod (933) is connected to the guide horizontal rod (936), and the end of the pressure rod (937) away from the magnetic block (101) is connected to the guide horizontal rod (936).

7. The motor rotor magnet pressing device as described in claim 6, characterized in that: The pressing force application device (93) also includes a support guide plate (934) and a guide cylinder (935). The support guide plate (934) is fixedly mounted on the pressing fixing body (931), and the guide cylinder (935) is mounted on the support guide plate (934). The guide vertical rod (933) is sleeved inside the guide cylinder (935).

8. The motor rotor magnet pressing device as described in claim 6, characterized in that: The guide vertical rod (933) is set perpendicularly to the guide horizontal rod (936), and the pressure rod (937) is set perpendicularly to the guide horizontal rod (936). The pressure rod (937) and the guide horizontal rod (936) are connected to one end of the guide horizontal rod (936) facing the motor rotor shaft (8).

9. The motor rotor magnet pressing device as described in claim 6, characterized in that: The sliding head (938) has a receiving groove (9381) at one end, the swing rod (932) is disposed in the receiving groove (9381), the swing rod (932) has a swing groove (9321), the swing groove (9321) has a first bolt (9382) disposed in the swing groove (9321), and the first bolt (9382) is fixedly disposed on the receiving groove (9381).

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