High-speed motor rotor fan and balance block mounting structure

Abstract

The utility model relates to rotor installation structure field, and disclose a kind of high-speed motor rotor fan and balance block installation structure, including rotor main body, the rotor main body outer wall is provided with shaft sleeve, the shaft sleeve left end inner wall is equipped with balance ring, the balance ring left end upper and lower sides are all set up clamping groove one, the balance ring inner wall is located at the right side of clamping groove one and is all set up hole groove one, the shaft sleeve inner wall is located at the right side of hole groove one and is all set up butt joint groove one, the clamping groove one inner wall is all provided with balance block one, the balance block one inner wall is all set up nail groove one, the inner wall between screw one is all set in nail groove one, hole groove one and butt joint groove one.The utility model, to the combination assembly of shaft sleeve, balance ring, locking washer, balance block one, balance block two, make it compact between, reduce the axial space occupation on the surface of rotor main body, improve the stability of rotor main body whole when operating.

Description

Technical Field

[0001] This utility model relates to the field of rotor mounting structures, specifically a mounting structure for a high-speed motor rotor fan and a balance block. Background Technology

[0002] The rotor of a high-speed motor is the core rotating component of the high-speed motor. It consists of a rotor core, windings or permanent magnets, and a shaft. When a high-speed motor is running, the rotor generates a lot of heat due to winding current, eddy currents in the core, and mechanical friction. Therefore, the rotor of a high-speed motor is equipped with a fan, the core purpose of which is to enhance heat dissipation.

[0003] On traditional high-speed motor rotors, the fan, balance weight, and balance ring are mostly installed separately with a large axial distance. However, when the motor rotor rotates at high speed, in order to reduce mechanical losses, the rotor inner diameter is usually designed to be small, resulting in a compact axial space that makes it difficult to accommodate the separately arranged balance ring and fan. This affects both operational stability and space utilization.

[0004] In order to reduce the axial space occupied on the rotor surface and improve its operational stability, this application proposes a mounting structure for a high-speed motor rotor fan and a balance block. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a mounting structure for a high-speed motor rotor fan and balance block, which reduces the axial space occupied on the rotor surface and improves its operational stability.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-speed motor rotor fan and balance block mounting structure, comprising a rotor body, a bushing provided on the outer wall of the rotor body, a plurality of fan blades fixedly connected to the outer wall of the bushing, a balance ring provided on the inner wall of the left end of the bushing, a slot provided on both the upper and lower sides of the left end of the balance ring, a hole groove provided on the right side of the inner wall of the balance ring located in the slot, a mating groove provided on the right side of the inner wall of the bushing located in the hole groove, a balance block provided on the inner wall of each slot, a nail groove provided on the inner wall of each balance block, a screw provided between the inner walls of the nail groove, the hole groove, and the mating groove, and a locking washer provided on the inner wall of the right end of the bushing.

[0007] Further description: The locking washer has a slot 2 on both the upper and lower sides of the right end of the inner wall, and the locking washer has a hole 2 on the left side of the slot 2. The bushing has a mating groove 2 on the left side of the hole 2. The inner wall of the hole 2 does not have a threaded surface, but its inner diameter is the same as the opening size of the mating groove 2.

[0008] Further description: Each of the inner walls of the second slot is provided with a second balance block, and each of the inner walls of the second balance block is provided with a second nail groove. Each of the inner walls of the second nail groove, the second hole groove, and the second mating groove is provided with a second screw. The inner wall of the second mating groove is provided with a threaded surface, and its thread shape matches the thread shape of the outer wall of the second screw.

[0009] Further description: A groove is formed in the middle of the front end of the inner wall of the bushing, and a slot is formed in the middle of the front end of the inner wall of the groove; a groove is formed at the notch of the inner wall of the bushing, and a slot is provided on the side of the inner wall of the bushing corresponding to the groove.

[0010] Further description: The outer wall of the rotor body is fixedly connected to the inner side of the groove with an interlocking block, and the upper and lower ends of the inner wall of the interlocking block are slidably connected to the rear side of the inclined block; a groove is opened on one side of the inner wall of the inclined block, and the inclined surface is inclined at 40°.

[0011] Further description: An adjustment hole is provided on the rear left side of the interlocking block, and the shape of the outer wall of the interlocking block matches the shape of the inner wall of the groove; the outer wall of the interlocking block is rectangular, and the inner wall of the groove matches the shape of its outer wall.

[0012] Further description: A spring is fixedly connected to the inner wall of the right end of the inclined block, and the other end of the spring is fixedly connected to the inner wall of the interlocking block; the spring is elastic and will generate elastic potential energy after being squeezed by the inclined block, so as to rebound and drive the inclined block to reset.

[0013] Further description: A plug is slidably connected to the inner wall of the front middle part of the interlocking block, and the shape of the front end of the plug matches the shape of the inner wall of the slot; the outer wall of the plug is square, and the shape of the inner wall of the slot matches the outer wall of the plug, and one end of the plug with the bevel is attached to the inclined part of the bevel block.

[0014] Beneficial effects:

[0015] 1. In this utility model, the combination and assembly of the bushing, balance ring, locking washer, balance block one and balance block two are completed by the cooperation of the first slot, the first nail slot, the first hole slot, the first mating slot, the first screw, the second slot, the second nail slot, the second hole slot, the second mating slot, and the second screw, so that they are compact, reducing the axial space occupied on the surface of the rotor body and improving the overall stability of the rotor body during operation.

[0016] 2. In this utility model, the bushing is quickly installed on the outer wall of the rotor body by means of the cooperation of the fitting block, the inclined block, the spring, the plug, the adjusting hole, the groove, and the slot. It can also be easily removed when the bushing and its surface blades are replaced, thereby improving the disassembly and assembly efficiency between the rotor body and the bushing. Attached Figure Description

[0017] Figure 1 This is a perspective view of the mounting structure of a high-speed motor rotor fan and balance block according to the present invention;

[0018] Figure 2 This is a cross-sectional view of the upper side of the bushing of a high-speed motor rotor fan and balance block mounting structure according to this utility model;

[0019] Figure 3 This is a cross-sectional view of the interlocking block of the mounting structure of a high-speed motor rotor fan and a balance block according to the present invention;

[0020] Figure 4 This is a cross-sectional view of the rear side of the bushing of a high-speed motor rotor fan and balance block mounting structure according to the present invention;

[0021] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0022] Figure 6 for Figure 4 Enlarged view of section B in the middle.

[0023] In the diagram: 1. Rotor body; 2. Bushing; 3. Fan blade; 4. Balance ring; 5. Locking washer; 6. Fitting block; 7. Inclined block; 8. Spring; 9. Bolt; 10. Adjustment hole; 11. Groove; 12. Slot; 13. Balance block one; 14. Screw one; 15. Slot one; 16. Screw slot one; 17. Hole slot one; 18. Connecting slot one; 19. Balance block two; 20. Screw two; 21. Slot two; 22. Screw slot two; 23. Hole slot two; 24. Connecting slot two. 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

[0026] Please see Figure 1 , Figures 4-6A high-speed motor rotor fan and balance block mounting structure includes a rotor body 1, a bushing 2 on the outer wall of the rotor body 1, a plurality of fan blades 3 fixedly connected to the outer wall of the bushing 2, a balance ring 4 on the inner wall of the left end of the bushing 2, a slot 15 on both the upper and lower sides of the left end of the balance ring 4, a hole slot 17 on the right side of the slot 15 on the inner wall of the balance ring 4, a mating groove 18 on the right side of the hole slot 17 on the inner wall of the bushing 2, a balance block 13 on the inner wall of each slot 15, and a nail groove 16 on the inner wall of each balance block 13. Screws 14 are provided between the inner walls of groove 17 and mating groove 18. Locking washer 5 is provided on the inner wall of the right end of bushing 2. The upper and lower sides of the right end of the inner wall of locking washer 5 are provided with slot 21. The inner wall of locking washer 5 is provided with hole slot 23 on the left side of slot 21. The inner wall of bushing 2 is provided with mating groove 24 on the left side of hole slot 23. Balance block 29 is provided on the inner wall of slot 21. Nail slot 22 is provided on the inner wall of balance block 21. Screws 20 are provided between the inner walls of nail slot 22, hole slot 23 and mating groove 24.

[0027] To further explain, firstly, when installing the bushing 2, it should be fitted onto the end with the smaller outer diameter of the rotor body 1. Next, the balance ring 4 and locking washer 5 should be installed, fitted onto the rotor body 1 from both the smaller and larger outer diameter ends respectively, so that the balance ring 4 and locking washer 5 are embedded in the inner walls of both ends of the bushing 2, ensuring that the grooves and holes between the bushing 2, balance ring 4, and locking washer 5 are aligned. Then, balance block 13 and balance block 29 are placed in their corresponding slots 15 and 21 respectively, and screw 14 is aligned with the screw... Insert the first slot 16, align the second screw 20 with the second slot 22 and insert it. Then, use a Phillips screwdriver to tighten the first screw 14 and the second screw 20, thereby completing the combined installation of the bushing 2, balance ring 4, locking washer 5, balance block 13, and balance block 29. This installation method can effectively reduce their axial space occupation on the outside of the rotor body 1 and improve space utilization. Several fan blades 3 fixed on the outside of the bushing 2 will rotate synchronously with the rotation of the rotor body 1, thereby generating airflow, which plays a good role in heat dissipation inside the motor and ensures the normal operation of the motor.

[0028] Example 2

[0029] Please see Figures 2-3Further, based on Embodiment 1, a groove 11 is provided in the middle of the front end of the inner wall of the bushing 2, and a slot 12 is provided in the middle of the front end of the inner wall of the groove 11. An interlocking block 6 is fixedly connected to the outer wall of the rotor body 1 inside the groove 11. An inclined block 7 is slidably connected to the rear side of the upper and lower ends of the inner wall of the interlocking block 6. An adjustment hole 10 is provided in the rear side of the left end of the interlocking block 6. The shape of the outer wall of the interlocking block 6 matches the shape of the inner wall of the groove 11. A spring 8 is fixedly connected to the inner wall of the right end of the inclined block 7. The other end of the spring 8 is fixedly connected to the inner wall of the interlocking block 6. A plug 9 is slidably connected to the inner wall of the middle of the front end of the interlocking block 6. The shape of the front end of the plug 9 matches the shape of the inner wall of the slot 12.

[0030] To further explain, before the bushing 2 is fitted into the rotor body 1, it must be ensured that the groove 11 and the fitting block 6 are accurately aligned. During the fitting process, a rod-like tool is used to pass through the adjustment hole 10 and push the inclined block 7, so that the inclined block 7 compresses the spring 8. During this process, the end of the plug 9 with the inclined surface is no longer held by the inclined surface of the inclined block 7. Therefore, when the angle of the rotor body 1 is manually changed, the plug 9 can slide freely into the fitting block 6. After the groove 11 is completely fitted into the outer wall of the fitting block 6, the tool is pulled out from the adjustment hole 10. At this time, the inclined block 7 loses its pushing force. Under the rebound force of the spring 8, the inclined block 7 will return to its original position and push the plug 9 out of the fitting block 6 and into the slot 12, thereby fixing the bushing 2 on the surface of the rotor body 1.

[0031] When the bushing 2 and its fan blade 3 are damaged and need to be replaced, simply insert a tool into the adjustment hole 10 and push the inclined block 7 to release its limiting effect on the plug 9. At this time, the plug 9 can slide into the fitting block 6 after manually changing the angle of the rotor body 1, thereby releasing the limiting effect on the bushing 2. Then, remove the bushing 2 from the outer wall of the rotor body 1, and disassemble the bushing 2, balance ring 4, and locking shim 5 in sequence to replace the bushing 2 and the fan blade 3.

[0032] Working principle: First, the bushing 2 is inserted into the end of the rotor body 1 with the smaller outer diameter. The bushing 2 must be aligned with the groove 11 on its inner wall before insertion. During insertion, a tool is used to pass through the adjustment hole 10 and push the inclined block 7 to compress the spring 8. During this process, the inclined end of the plug 9 is no longer held in place by the inclined surface of the inclined block 7. Therefore, the plug 9 can freely slide into the fitting block 6 after the angle of the rotor body 1 is manually changed. The groove 11... After the tool is fully fitted onto the outer wall of the fitting block 6, it is pulled out of the adjustment hole 10. The inclined block 7 then loses its pushing force. At this time, under the rebound of the spring 8, the inclined block 7 is reset and the plug 9 is pushed out of the fitting block 6 and inserted into the slot 12, thereby fixing the bushing 2 on the surface of the rotor body 1. Then, the balance ring 4 and the locking washer 5 are respectively fitted from the smaller outer diameter end and the larger outer diameter end of the rotor body 1, so that the balance ring 4 and the locking washer 5 are respectively embedded in the two ends of the bushing 2. Next, place the first balance block 13 and the second balance block 19 into the slot 15 and slot 21 respectively. Then, insert the first screw 14 into the slot 16 and the second screw 20 into the slot 22. Then, use a tool to tighten the first screw 14 and the second screw 20. This completes the assembly of the bushing 2, balance ring 4, locking washer 5, first balance block 13 and second balance block 19, reducing their axial space occupation on the outside of the rotor body 1. By fixing several fan blades 3 on the outside of the bushing 2, the rotor body 1 will generate airflow after rotation, thereby dissipating heat from the inside of the motor. When the bushing 2 and its fan blades 3 are damaged, a tool can be directly inserted through the adjustment hole 10 and the inclined block 7 can be pushed to release its limiting effect on the plug 9. After manually changing the angle of the rotor body 1, the plug 9 slides into the fitting block 6, thereby releasing the limiting effect on the bushing 2. After that, the bushing 2 can be removed from the outer wall of the rotor body 1 for easy replacement.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-speed motor rotor fan and balance weight mounting structure, comprising a rotor body (1), characterized in that: The outer wall of the rotor body (1) is provided with a bushing (2), and a number of fan blades (3) are fixedly connected to the outer wall of the bushing (2). The inner wall of the left end of the bushing (2) is provided with a balance ring (4). The upper and lower sides of the left end of the balance ring (4) are provided with a slot (15). The inner wall of the balance ring (4) is provided with a hole slot (17) to the right of the slot (15). The inner wall of the bushing (2) is provided with a docking slot (18) to the right of the hole slot (17). The inner wall of the slot (15) is provided with a balance block (13). The inner wall of the balance block (13) is provided with a nail slot (16). The inner walls of the nail slot (16), the hole slot (17) and the docking slot (18) are provided with a screw (14). The inner wall of the right end of the bushing (2) is provided with a locking washer (5).

2. The mounting structure for a high-speed motor rotor fan and balance weight according to claim 1, characterized in that: The locking washer (5) has a slot 2 (21) on both the upper and lower sides of the right end of the inner wall. The locking washer (5) has a hole slot 2 (23) on the left side of the slot 2 (21). The bushing (2) has a mating slot 2 (24) on the left side of the hole slot 2 (23).

3. The mounting structure for a high-speed motor rotor fan and balance weight according to claim 2, characterized in that: The inner wall of each of the card slots (21) is provided with a balance block (19), and the inner wall of each balance block (19) is provided with a nail groove (22). Screws (20) are provided between the inner walls of the nail groove (22), the hole groove (23), and the mating groove (24).

4. The mounting structure for a high-speed motor rotor fan and balance weight according to claim 1, characterized in that: The bushing (2) has a groove (11) at the middle of the front end of its inner wall, and a slot (12) is provided at the middle of the front end of the inner wall of the groove (11).

5. The mounting structure for a high-speed motor rotor fan and balance weight according to claim 1, characterized in that: The outer wall of the rotor body (1) is fixedly connected to the inner side of the groove (11) with a fitting block (6), and the upper and lower ends of the inner wall of the fitting block (6) are slidably connected to the rear side of the inclined block (7).

6. The mounting structure for a high-speed motor rotor fan and balance weight according to claim 5, characterized in that: An adjustment hole (10) is provided on the rear left side of the fitting block (6), and the shape of the outer wall of the fitting block (6) matches the shape of the inner wall of the groove (11).

7. The mounting structure for a high-speed motor rotor fan and balance weight according to claim 5, characterized in that: A spring (8) is fixedly connected to the inner wall of the right end of the inclined block (7), and the other end of the spring (8) is fixedly connected to the inner wall of the interlocking block (6).

8. The mounting structure for a high-speed motor rotor fan and balance weight according to claim 5, characterized in that: The inner wall of the front middle part of the fitting block (6) is slidably connected to a plug (9), and the shape of the front end of the plug (9) matches the shape of the inner wall of the slot (12).

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