Auxiliary assembly device for flywheel motor rotor

Abstract

This utility model proposes an auxiliary assembly device for a flywheel motor rotor, belonging to the field of flywheel energy storage technology. A pressing and fixing device is fixedly installed on the motor rotor shaft. A magnetic block is installed inside the pressing and guiding device. The pressing and guiding device guides the magnetic block, and the pressing and applying force device applies external force to the magnetic block. Under the guidance of the pressing and guiding device, the magnetic block enters the stacked silicon steel sheets. The pressing and fixing device is fixedly installed on the motor rotor shaft and positions the pressing and applying force device, improving the pressing accuracy of the magnetic block. This device has a simple structure and can easily press the magnetic block into the silicon steel groove, making pressing more labor-saving and efficient.

Description

Technical Field

[0001] This utility model relates to the field of energy storage technology, and more specifically, to an auxiliary assembly device for a flywheel motor rotor. Background Technology

[0002] In practical applications, flywheel motors typically reduce eddy current losses by minimizing eddy current generation. For example, the 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 rotor is usually not a separate process; it requires assembly along with the flywheel's motor shaft using a predetermined procedure. 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 sheet installation significantly affect assembly accuracy. Additionally, magnets need to be inserted within the silicon steel sheets. Currently, magnets are typically installed by hammering into the stacked sheets. However, due to the thickness of the stacked sheets, this hammering method easily damages the magnets.

[0003] Therefore, there is an urgent need for a device for pressing together silicon steel sheets and installing magnets on a motor rotor, as well as an auxiliary assembly device to improve assembly accuracy and installation efficiency. Utility Model Content

[0004] In view of this, this utility model proposes a method of lifting and pressing the silicon steel sheets together before installing them onto the motor shaft, which greatly improves the assembly efficiency and accuracy of the motor rotor.

[0005] The technical solution of this utility model is implemented as follows: An auxiliary assembly device for a flywheel motor rotor, including an inner liner shaft, an inner liner tray, and an outer cylinder. One end of the inner liner shaft is disposed on the inner liner tray, and the outer cylinder is disposed around the inner liner shaft. One end of the outer cylinder is disposed on the inner liner tray. Silicon steel sheets are disposed within a cavity formed by the inner liner shaft, the inner liner tray, and the outer cylinder. The device is characterized by further including a motor rotor shaft, with silicon steel sheets stacked around the motor rotor shaft. Silicon steel grooves are provided on the silicon steel sheets. The device also includes a pressing and fixing device, a pressing force application device, and a pressing and guiding device. The pressing and fixing device is fixedly disposed on the motor rotor shaft. A magnetic block is disposed within the pressing and guiding device. The pressing and guiding device guides the magnetic block, and the pressing force application device applies external force to the magnetic block. The magnetic block enters the stacked silicon steel sheets under the guidance of the pressing and guiding device.

[0006] Based on the above technical solutions, preferably, the outer cylinder includes a plurality of limiting rods, the limiting rods being arranged around the silicon steel sheet; one end of each limiting rod is connected to a positioning rod, the outer diameter of the end ring is larger than that of the inner lining tray, and the positioning rod is arranged on the side of the end ring facing the inner lining tray; it also includes a clamping ring, the clamping ring being arranged around the outer cylinder and the clamping ring being fixedly arranged on the outer cylinder.

[0007] 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.

[0008] 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.

[0009] 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.

[0010] 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.

[0011] 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.

[0012] 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.

[0013] 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.

[0014] 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.

[0015] The auxiliary assembly device for flywheel motor rotor of this utility model has the following advantages over the prior art: The silicon steel sheets are supported by an inner liner tray, which positions the silicon steel sheets axially and radially. The inner liner shaft is similar to the rotor shaft of a motor. The silicon steel sheets are fitted onto the inner liner shaft for positioning. This structure can stack a large number of silicon steel sheets according to requirements with high precision. The inner liner shaft is smaller than the silicon steel sheet, making it easier to fit the silicon steel sheet onto the inner liner shaft. The outer diameter of the inner liner tray is larger than the outer diameter of the silicon steel sheet, and the inner liner tray can support the silicon steel sheet. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. 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 an auxiliary assembly device for a flywheel motor rotor according to the present invention; Figure 2 This utility model Figure 1 Enlarged view of a part Figure 3 This utility model Figure 1 A schematic diagram of a partial structure; Figure 4 This utility model Figure 3 A schematic diagram of a partial structure; Figure 5 This is a perspective view of the top cover of this utility model; Figure 6 This utility model Figure 5 A schematic diagram of a partial structure; Figure 7 This utility model Figure 6 A three-dimensional view of the local structure; Figure 8 This is a perspective view of the clamping ring of this utility model; Figure 9 This utility model Figure 6 A partial three-dimensional structural diagram; Figure 10 This utility model Figure 4 A partial three-dimensional structural diagram; Figure 11 This is a perspective view of the inner lining shaft 1 and the inner lining tray 11 of this utility model. Detailed Implementation

[0018] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0019] like Figure 1-11 As shown, an auxiliary assembly device for a flywheel motor rotor 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 and can easily press the magnetic block 101 into the silicon steel groove 31, making pressing easier and more efficient.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] A method for using an auxiliary assembly device for a flywheel motor rotor includes the following steps: 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. 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.

[0029] It also includes an inner liner shaft 1, an inner liner tray 11, and an outer cylinder 2. One end of the inner liner shaft 1 is mounted on the inner liner tray 11, and the outer cylinder 2 is arranged around the inner liner shaft 1, with one end of the outer cylinder 2 also mounted on the inner liner tray 11. Silicon steel sheets 3 are arranged within the cavity formed by the inner liner shaft 1, inner liner tray 11, and outer cylinder 2. The inner liner tray 11 supports the silicon steel sheets 3, providing axial and radial positioning. The inner liner shaft 1 is similar to a motor rotor shaft 8, and the silicon steel sheets 3 are fitted onto the inner liner shaft 1 for positioning. This structure allows numerous silicon steel sheets 3 to be stacked according to requirements with high precision.

[0030] The inner lining tray 11 is circular, with an outer diameter larger than that of the silicon steel sheet 3, and an outer diameter smaller than that of the inner lining shaft 1. The inner lining shaft 1 is smaller than the silicon steel sheet 3, which facilitates the fitting of the silicon steel sheet 3 onto the inner lining shaft 1. The outer diameter of the inner lining tray 11 is larger than that of the silicon steel sheet 3, allowing the inner lining tray 1 to support the silicon steel sheet 3.

[0031] The inner lining shaft 1 is vertically mounted on the inner lining tray 11, and the axis of the inner lining shaft 1 coincides with that of the inner lining tray 11. The inner lining shaft 1 is perpendicular to the inner lining tray 11, and the stacked silicon steel sheets 3 are aligned vertically. This alignment ensures that the stacked silicon steel sheets 3 are aligned with the stamping direction, guaranteeing a high surface roughness and good dimensional accuracy for both the inner and outer circumferences of the silicon steel sheets 3 after stacking. The stacked thickness of the silicon steel sheets is approximately 1.02 times the theoretical thickness (considering a partial stacking coefficient).

[0032] The inner lining tray 11 is provided with stress grooves 12, which are arranged around the inner lining shaft 1. This prevents the perpendicularity between the inner lining shaft 1 and the inner lining tray 11 from decreasing due to external stress, thus ensuring the perpendicularity between the inner lining shaft 1 and the inner lining tray 11.

[0033] A cut surface 13 is provided on one side of the inner liner shaft 1, and the cut surface 13 is provided along the length direction of the inner liner shaft 1. The cut surface 13 facilitates the separation of the inner liner shaft 1, which is fitted with several silicon steel sheets 3, from the silicon steel sheets 3.

[0034] It also includes an end ring 4, which is disposed on the inner liner tray 11 and is arranged around the inner liner shaft 1. The end ring 4 is typically made of stainless steel and has a magnetic shielding function.

[0035] The outer cylinder 2 includes several limiting rods 21, which are arranged around the silicon steel sheet 3. The outer cylinder 2 is composed of several limiting rods 21. Different numbers of limiting rods 21 can be installed according to actual conditions, and the limiting rods 21 can be quickly installed and removed, resulting in higher installation and removal efficiency.

[0036] One end of the limiting rod 21 is connected to a positioning rod 22. The outer diameter of the end ring 4 is larger than that of the inner lining tray 11. The positioning rod 22 is located on the side of the end ring 4 facing the inner lining tray 11. The positioning rod 22 is the part that protrudes from one end of the limiting rod 21. This part cooperates with the bottom of the end ring 4 to combine the limiting rod 21 and the end ring 4 into a whole.

[0037] It also includes a clamping ring 5, which is arranged around the outer cylinder 2 and is fixedly mounted on the outer cylinder 2. The clamping ring 5 positions the limiting rod 21 circumferentially, preventing the silicon steel sheet 3 from shifting outwards during the clamping process, thus avoiding a decrease in accuracy.

[0038] The clamping ring 5 is provided with a plurality of clamping positioning grooves 51, and each clamping positioning groove 51 is provided in a corresponding manner to a limiting rod 21, with the limiting rod 21 disposed within the clamping positioning groove 51. The clamping positioning groove 51 is used to better fix the limiting rod 21, and at the same time, it can also limit the position of the limiting rod 21.

[0039] It also includes a top cover 6, which is located at the end of the outer cylinder 2 away from the inner lining tray 11, and the top cover 6 is fixedly connected to the outer cylinder 2.

[0040] It also includes several ejector pins 7, one end of which passes through the top cover 6 and the silicon steel sheet 3 in sequence and is fixedly mounted on the end ring 4. The silicon steel sheet 3 is not stacked and is relatively loose between the sheets. The ejector pins 7 are inserted into the positioning holes of the silicon steel sheet 3 to precisely position the silicon steel sheet 3. The ejector pins 7 are usually high in hardness, have good wear resistance, and are not prone to plastic deformation.

[0041] The end of the ejector pin 7 that mates with the end ring 4 is threaded, and the ejector pin 7 and the end ring 4 are connected by the thread. The ejector pin 7 and the end ring 4 are engaged by the thread, and one end of the ejector pin 7 is fixed, which provides a good positioning effect for the silicon steel sheet 3.

[0042] It also includes a lifting hook 61, which is mounted on the top cover 6. The lifting hook 61 is used to lift the entire device, making lifting more convenient and avoiding damage to the entire device.

[0043] A method for stacking flywheel motor rotors includes the following steps: S1. Select a horizontal plane, place the inner lining tray 11 on the horizontal plane, and place the end ring 4 on the inner lining tray 11 after passing through the inner lining shaft 1. Stack the silicon steel sheets 3 on the inner lining tray 11 in sequence, and keep the front and back sides and axial positions of the silicon steel sheets 3 consistent. S2: During the process of placing silicon steel sheets 3, every 10-30 silicon steel sheets 3 are placed, the ejector pin 7 is passed through the positioning hole on the silicon steel sheet 3 to accurately position the silicon steel sheet 3 and press the silicon steel sheet firmly. S3: Several limiting rods 21 are evenly arranged around the end ring 4. The positioning rod 22 is snapped into the side of the end ring 4 near the inner lining tray 11. The clamping ring 5 is sleeved onto the limiting rod 21 from the end of the limiting rod 21 away from the inner lining tray 11. Each limiting rod 21 moves along its corresponding clamping positioning groove 51. The limiting rod 21 is fixedly connected to the clamping ring 5 by bolts. S4: The ends of several limiting rods 21 away from the inner liner tray 11 cover the top cover 6. The top cover 6 is fixed to each limiting rod 21 by bolts. The ejector pin 7 passes through the top cover 6 and several silicon steel sheets 3 and is fixed on the end ring 4. The top cover 6 is equipped with a hook 61. The lifting device is connected to the hook 61 to lift the flywheel motor rotor stacking device, detach the inner liner shaft 1 and the inner liner tray 11, and then put the remaining part on the motor rotor shaft 8. The top cover 6, clamping ring 5 and limiting rods 21 are disassembled in sequence to complete the installation of silicon steel sheets 3 on the motor rotor shaft 8.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An auxiliary assembly device for a flywheel motor rotor, further comprising an inner liner shaft (1), an inner liner tray (11), and an outer cylinder (2), wherein one end of the inner liner shaft (1) is disposed on the inner liner tray (11), the outer cylinder (2) is disposed around the inner liner shaft (1), one end of the outer cylinder (2) is disposed on the inner liner tray (11), and silicon steel sheets (3) are disposed around the cavity of the inner liner shaft (1), the inner liner tray (11), and the outer cylinder (2), characterized in that: It also includes a motor rotor shaft (8), silicon steel sheets (3) stacked around the motor rotor shaft (8), silicon steel sheets (3) are provided with silicon steel grooves (31), and also includes a pressing and fixing device (92), a pressing force device (93) and a pressing guide device (91). The pressing and fixing device (92) is fixedly installed on the motor rotor shaft (8), and a magnetic block (101) is provided in the pressing guide device (91). The pressing guide device (91) guides the magnetic block (101), and the pressing 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 guide device (91).

2. An auxiliary assembly device for a flywheel motor rotor as claimed in claim 1, characterized in that: It also includes an end ring (4), the outer cylinder (2) includes several limiting rods (21), the limiting rods (21) are arranged around the silicon steel sheet (3); one end of the limiting rod (21) is connected to a positioning rod (22), the outer diameter of the end ring (4) is larger than the inner lining tray (11), and the positioning rod (22) is arranged on the side of the end ring (4) facing the inner lining tray (11); it also includes a clamping ring (5), the clamping ring (5) is arranged around the outer cylinder (2), and the clamping ring (5) is fixedly arranged on the outer cylinder (2).

3. An auxiliary assembly device for a flywheel motor rotor as claimed 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).

4. An auxiliary assembly device for a flywheel motor rotor as claimed in claim 3, 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).

5. An auxiliary assembly device for a flywheel motor rotor as defined 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.

6. An auxiliary assembly device for a flywheel motor rotor as defined 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).

7. An auxiliary assembly device for a flywheel motor rotor as claimed in claim 6, 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).

8. An auxiliary assembly device for a flywheel motor rotor as claimed in claim 7, 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).

9. An auxiliary assembly device for a flywheel motor rotor as claimed in claim 7, 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).

10. An auxiliary assembly device for a flywheel motor rotor as claimed in claim 7, 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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