High-speed motor shaft

Abstract

The utility model discloses a high-speed motor shaft, and belongs to the technical field of high-speed motors. The number of the side shafts is two, and the two side shafts are movably connected to the two sides of the middle shaft in an inserted mode respectively. The two side shafts are in threaded connection with the outer sides of the two side shafts respectively; the side shafts are limited through the positioning rings, then the side shafts are conveniently fixed through clamping connection of the inserting rods and the inserting holes, the side shafts are prevented from rotating, then the middle shaft, the side shafts and the side shafts are fixed together through threaded fit of the screw rods and the nuts, and the side shafts are fixed through the clamping connection of the inserting rods and the inserting holes. And the fixing stability is optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of high-speed motors, and more specifically, to a high-speed motor shaft. Background Art

[0002] High-speed motors usually refer to motors with a rotational speed exceeding 10,000 r / min. Due to their high rotational speed, their volume is much smaller than that of ordinary motors with the same power. Connected to the prime mover, the traditional speed reduction mechanism is cancelled, and the high-speed motor has a small moment of inertia. Therefore, it has a high motor power density, can effectively save materials, and has a high transmission efficiency.

[0003] Some patent documents related to high-speed motor shafts are disclosed in the prior art. The Chinese patent with the application number CN201720186910.2 discloses a high-speed motor shaft, which includes a reverse locking screw, a first shaft section, a second shaft section, a third shaft section, a fourth shaft section, a fifth shaft section, a sixth shaft section, and a forward locking screw that are sequentially connected and have the same axis. Top holes are respectively provided at both ends of the high-speed motor shaft, and the centers of the top holes are located on the axis. Threads opposite to the rotation direction of the motor are respectively provided on the reverse locking screw and the forward locking screw. A first shaft shoulder is formed between the second shaft section and the third shaft section, and a second shaft shoulder is formed between the fourth shaft section and the fifth shaft section. The above high-speed motor shaft reduces the processing difficulty and improves the accuracy of dimensional tolerances and form and position tolerances on the shaft through a clever design.

[0004] In the above patent, the motor shaft is directly fixed by screws, and the rotating shaft therein is not limited, resulting in the easy rotation of the rotating shaft. For this reason, we propose a high-speed motor shaft. Content of the Utility Model

[0005] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a high-speed motor shaft. The utility model limits the side shaft through a positioning ring, and then facilitates the fixation of the side shaft through the clamping of the insertion rod and the insertion hole to prevent the side shaft from rotating. Then, the middle shaft, the side shaft, and the edge shaft are fixed together through the thread fit of the screw and the nut, optimizing its fixing stability.

[0006] To solve the above problems, the utility model adopts the following technical solutions:

[0007] A high-speed motor shaft, comprising:

[0008] A middle shaft;

[0009] Side shafts, two side shafts are provided, and the two side shafts are respectively movably inserted on both sides of the middle shaft;

[0010] Edge shafts, two edge shafts are respectively threadedly connected to the outer sides of the two side shafts;

[0011] A clamping mechanism, the clamping mechanism is arranged inside the middle shaft, and the clamping mechanism is connected to the two side shafts.

[0012] As a preferred solution of the present utility model, two groups of the clamping mechanisms are provided, each group of the clamping mechanisms includes a limiting component and a clamping component, the limiting component and the clamping component are both arranged inside the middle shaft, and the limiting component is connected to the clamping component.

[0013] As a preferred solution of the present utility model, the limiting component includes a positioning ring, the positioning ring is fixedly connected inside the middle shaft, the side shaft is movably inserted into the middle shaft, and the side shaft is in sliding fit with the positioning ring.

[0014] As a preferred solution of the present utility model, the clamping component includes a plug rod and a jack, the plug rod and the jack are both provided in plurality, a plurality of the plug rods are fixedly connected to the side ends of the side shaft, a plurality of the jacks are opened at the side ends of the positioning ring, and the plurality of jacks are clamped with the plurality of plug rods.

[0015] As a preferred solution of the present utility model, a screw rod is movably inserted into the middle shaft, the two side shafts and the two side edges shafts, a fixed seat is fixedly connected to the left end of the screw rod, and a nut is threadedly connected to the right end of the screw rod.

[0016] As a preferred solution of the present utility model, limiting rings are fixedly connected to the surfaces of the two side edge shafts.

[0017] Compared with the prior art, the advantages of the present utility model are as follows:

[0018] In this solution, when it is necessary to combine the middle shaft, the side shaft and the side edge shaft, first insert the side shaft into the middle shaft, then insert the plug rod into the jack, limit the side shaft through the clamping of the plug rod and the jack, then threadedly connect the side edge shaft to the outside of the side shaft. At this time, hold the fixed seat by hand, insert the screw rod into the side edge shaft, the side shaft and the middle shaft, then hold the nut by hand and threadedly connect the nut to the surface of the screw rod, and fix the middle shaft, the side shaft and the side edge shaft together through the threaded cooperation of the screw rod and the nut.

[0019] In this solution, the limiting ring is for facilitating the limitation of the side edge shaft to prevent the side edge shaft from falling into the side shaft. Description of the Drawings

[0020] Figure 1 is the front view perspective view of the present utility model;

[0021] Figure 2 is the front view cross-sectional view of the present utility model;

[0022] Figure 3 is the overall exploded view of the present utility model;

[0023] Figure 4Explosion diagram of the clamping mechanism of the present utility model.

[0024] Description of the reference numerals in the figure:

[0025] 1. Middle shaft; 2. Side shaft; 3. Plug rod; 4. Positioning ring; 5. Jack; 6. Edge shaft; 7. Limit ring; 8. Fixed seat; 9. Screw; 10. Nut. Specific implementation manner

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Please refer to Figures 1-4 , a high-speed motor shaft, including:

[0028] Middle shaft 1;

[0029] Side shafts 2, two side shafts 2 are respectively movably inserted on both sides of the middle shaft 1;

[0030] Edge shafts 6, two edge shafts 6 are respectively threadedly connected to the outer sides of the two side shafts 2.

[0031] In this embodiment, the middle shaft 1, the side shafts 2 and the edge shafts 6 are convenient for combined use, and the clamping mechanism is convenient for fixing the side shafts 2 and the middle shaft 1 together. The present utility model limits the side shafts 2 through the positioning rings 4, and then fixes the side shafts 2 through the clamping of the plug rods 3 and the jacks 5 to prevent the side shafts 2 from rotating. Then, the middle shaft 1, the side shafts 2 and the edge shafts 6 are fixed together through the threaded cooperation of the screws 9 and the nuts 10, optimizing its fixing stability.

[0032] Specifically, two sets of clamping mechanisms are provided, and each set of clamping mechanisms includes a limiting component and a clamping component. The limiting component and the clamping component are both arranged in the middle shaft 1, and the limiting component and the clamping component are connected.

[0033] In this embodiment, two sets of clamping mechanisms are provided, and each set of clamping mechanisms includes a limiting component and a clamping component. The limiting component and the clamping component are both arranged in the middle shaft 1, and the limiting component and the clamping component are connected.

[0034] Specifically, the limiting component includes a positioning ring 4, the positioning ring 4 is fixedly connected in the middle shaft 1, the side shaft 2 is movably inserted in the middle shaft 1, and the side shaft 2 is in sliding fit with the positioning ring 4.

[0035] In this embodiment, the positioning ring 4 is for facilitating the limiting of the side shaft 2 to prevent the side shaft 2 from falling into the middle shaft 1.

[0036] Specifically, the clamping assembly includes insertion rods 3 and insertion holes 5. Both the insertion rods 3 and the insertion holes 5 are provided in plurality. The plurality of insertion rods 3 are all fixedly connected to the side ends of the side shaft 2, and the plurality of insertion holes 5 are all formed in the side ends of the positioning ring 4, and the plurality of insertion holes 5 are clamped with the plurality of insertion rods 3.

[0037] In this embodiment, the formation of the insertion holes 5 is for facilitating the clamping with the insertion rods 3. Through the clamping of the insertion rods 3 and the insertion holes 5, it is convenient to limit the side shaft 2 and prevent the side shaft 2 from rotating self.

[0038] Specifically, the screw rod 9 is movably inserted into the middle shaft 1, two side shafts 2 and two side shafts 6. A fixed seat 8 is fixedly connected to the left end of the screw rod 9, and a nut 10 is threadedly connected to the right end of the screw rod 9.

[0039] In this embodiment, the fixed seat 8 is for facilitating the fixing of the screw rod 9, and the screw rod 9 is for facilitating the threaded connection with the nut 10. Through the threaded cooperation of the screw rod 9 and the nut 10, the middle shaft 1, the side shaft 2 and the side shaft 6 are fixed together.

[0040] Specifically, limiting rings 7 are fixedly connected to the surfaces of the two side shafts 6.

[0041] In this embodiment, the limiting rings 7 are for facilitating the limiting of the side shafts 6 to prevent the side shafts 6 from falling into the side shafts 2.

[0042] Working principle: When it is necessary to combine the middle shaft 1, the side shaft 2 and the side shaft 6, first insert the side shaft 2 into the middle shaft 1, then insert the insertion rods 3 into the insertion holes 5, limit the side shaft 2 through the clamping of the insertion rods 3 and the insertion holes 5, then threadedly connect the side shaft 6 to the outside of the side shaft 2. At this time, hold the fixed seat 8 by hand, insert the screw rod 9 into the side shaft 6, the side shaft 2 and the middle shaft 1, and then hold the nut 10 by hand and threadedly connect the nut 10 to the surface of the screw rod 9. Through the threaded cooperation of the screw rod 9 and the nut 10, the middle shaft 1, the side shaft 2 and the side shaft 6 are fixed together.

[0043] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitution or change, and should be covered by the protection scope of the present invention.

Claims

1. A high-speed motor shaft, characterized in that, Comprising: A central shaft (1); Side shafts (2), two of the side shafts (2) are provided, and the two side shafts (2) are respectively movably inserted into both sides of the central shaft (1); Edge shafts (6), the two edge shafts (6) are respectively threadedly connected to the outer sides of the two side shafts (2); A clamping mechanism, the clamping mechanism is arranged inside the central shaft (1), and the clamping mechanism is connected to the two side shafts (2).

2. The high-speed motor shaft according to claim 1, wherein: The clamping mechanism is provided in two groups, each group of the clamping mechanism includes a limiting component and a clamping component, the limiting component and the clamping component are both arranged inside the central shaft (1), and the limiting component and the clamping component are connected.

3. A high-speed motor shaft according to claim 2, characterized in that: The limiting component includes a positioning ring (4), the positioning ring (4) is fixedly connected inside the central shaft (1), the side shaft (2) is movably inserted into the central shaft (1), and the side shaft (2) is in sliding fit with the positioning ring (4).

4. A high-speed motor shaft according to claim 3, characterized in that: The clamping component includes inserting rods (3) and inserting holes (5), a plurality of the inserting rods (3) and the inserting holes (5) are provided, a plurality of the inserting rods (3) are fixedly connected to the side ends of the side shaft (2), a plurality of the inserting holes (5) are opened at the side ends of the positioning ring (4), and the plurality of inserting holes (5) are clamped with the plurality of inserting rods (3).

5. The high-speed motor shaft according to claim 4, characterized in that: A screw rod (9) is movably inserted into the central shaft (1), the two side shafts (2) and the two edge shafts (6), a fixing seat (8) is fixedly connected to the left end of the screw rod (9), and a nut (10) is threadedly connected to the right end of the screw rod (9).

6. The high-speed motor shaft according to claim 5, characterized in that: Limiting rings (7) are fixedly connected to the surfaces of the two edge shafts (6).

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