Rotating shaft power assisting device and rotating shaft

Abstract

The utility model provides a power assisting device for a rotating shaft, which belongs to the technical field of machine manufacturing and comprises a shell and a power assisting mechanism. The outer shell is arranged on the periphery of the rotating shaft body in a sleeving mode, a notch is formed in the inner side wall of the outer shell, and a magnet fixing cabin is fixedly arranged outside the notch. The power-assisted mechanism comprises a rotating wheel fixedly connected to the periphery of the rotating shaft body in a sleeving mode, a planetary magnet obliquely arranged on the periphery of the rotating wheel and an acting force magnet arranged in an inner cavity of the magnet fixing cabin. And the head end of the acting force magnet is clamped at the notch and is arranged opposite to the head end of the planetary magnet in a homopolar manner. By means of the rotating shaft, the problems that in the prior art, friction resistance generated in the rotating direction of the rotating shaft causes rotation of the rotating shaft to be strenuous, energy consumption is large, noise and vibration are prone to being generated, and high temperature generated by the friction resistance easily causes abrasion of the rotating shaft can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical manufacturing technical field more specifically, a rotating shaft power assisting device and rotating shaft. BACKGROUND

[0002] Rotating shaft is an important mechanical element in the mechanical field, usually cylindrical, conical, spherical, rod-shaped, etc. The most commonly used is cylindrical rotating shaft, its main function is to transmit power, change the direction of power and relieve vibration and impact in mechanical rotation.

[0003] Rotating shaft mainly includes input shaft, output shaft, center support shaft and connecting shaft. The input shaft is connected with the external power source, and the power is output through the output shaft. When the rotating shaft plays the above functions, it needs to rely on the external power source to rotate along the direction of the external power.

[0004] At present, when the existing rotating shaft rotates, the frictional resistance generated in the rotating direction causes the rotating shaft to rotate with great effort, high energy consumption, easy to produce noise and vibration; the high temperature generated by the frictional resistance easily causes the rotating shaft to wear. INVENTION CONTENTS

[0005] In view of the above problems, the utility model aims at providing a rotating shaft power assisting device and rotating shaft to solve the problems of the rotating shaft in the prior art, such as the frictional resistance generated in the rotating direction, which causes the rotating shaft to rotate with great effort, high energy consumption, easy to produce noise and vibration, and the high temperature generated by the frictional resistance easily causes the rotating shaft to wear.

[0006] The rotating shaft power assisting device provided by the utility model comprises a shell and a power assisting mechanism, wherein,

[0007] The shell is sleeved on the outer periphery of the rotating shaft body, a notch is formed on the inner side wall of the shell, and a magnet fixing cabin is fixed outside the notch;

[0008] The power assisting mechanism comprises a rotating wheel fixedly sleeved on the outer periphery of the rotating shaft body, a planetary magnet obliquely arranged on the outer periphery of the rotating wheel, and an acting force magnet arranged in the inner cavity of the magnet fixing cabin; the head end of the acting force magnet is clamped at the notch and is arranged in the same polarity opposite to the head end of the planetary magnet.

[0009] In addition, preferably, the magnet fixing cabin comprises a cabin body fixed at one end outside the notch and an inspection cover arranged at the other end of the cabin body; and the inspection cover is detachably connected with the end of the cabin body.

[0010] In addition, preferably, a first fixed wing plate is arranged on the outer periphery of the end of the cabin body; a second fixed wing plate is arranged on the outer periphery of the end of the maintenance cover; a fixed bolt hole is arranged on the first fixed wing plate and the second fixed wing plate correspondingly; the first fixed wing plate and the second fixed wing plate are fixedly connected through the fixed bolt arranged in the fixed bolt hole.

[0011] In addition, preferably, a fixed protrusion is arranged on the inner end plate of the maintenance cover; a groove matched with the fixed protrusion is arranged on the tail end of the force magnet; the fixed protrusion is inserted into the groove.

[0012] In addition, preferably, an elastic member is sleeved on the outer periphery of the tail end of the force magnet; one end of the elastic member is sleeved on the force magnet, and the other end is abutted against the inner end plate of the maintenance cover.

[0013] In addition, preferably, the elastic member is a damping spring.

[0014] In addition, preferably, the number of the force magnets is at least two; the force magnets are uniformly arranged on the outer periphery of the shell; the number of the planet magnets is at least six; the planet magnets are uniformly arranged on the outer periphery of the rotating wheel.

[0015] In addition, preferably, the force magnet is a permanent magnet.

[0016] In addition, preferably, the magnet fixing cabin and the shell are integrally formed.

[0017] The rotating shaft provided by the utility model, comprising a rotating shaft main body, further comprising the rotating shaft assisting device as described above.

[0018] From the above technical solutions can be known, the utility model discloses a rotating shaft power assisting device and rotating shaft, through the outer shell of rotating shaft main body's outer periphery is equipped, the acting force magnet in power assisting mechanism is fixed in the magnet fixed cabin of outer shell, and the rotating wheel is fixed in the outer periphery of rotating shaft main body, and the planetary magnet is arranged on the outer periphery of rotating wheel, and the head end of acting force magnet and the head end of planetary magnet are arranged to be same polarity, thereby can effectively utilize the repulsion between same magnetic pole between acting force magnet and planetary magnet, when rotating shaft main body rotates along the direction of planetary magnet's inclination, the repulsion between acting force magnet and planetary magnet plays the propelling action to rotating shaft main body, thereby reduces the output of energy, can offset a part of friction resistance when rotating, reduces the abrasion of rotating shaft main body, and effectively reduces the noise and vibration generated by friction of rotating shaft main body, when rotating shaft main body rotates against the direction of planetary magnet's inclination, the repulsion between acting force magnet and planetary magnet plays the hindering action to rotating shaft main body, so that it can be used in the scene that the rotating direction of rotating shaft has special requirements, for example, the axle of toy car, and the acting force between acting force magnet and planetary magnet is not influenced by high speed and high temperature and other environments. BRIEF DESCRIPTION OF DRAWINGS

[0019] Other objects and results of the present utility model will be more apparent and easy to understand by referring to the following description in conjunction with the accompanying drawings, and with the more comprehensive understanding of the present utility model. In the drawings:

[0020] Figure 1 It is a structure schematic view that the rotating shaft power assisting device according to the embodiment of the present utility model includes two acting force magnets;

[0021] Figure 2 It is a structure schematic view that the rotating shaft power assisting device according to the embodiment of the present utility model includes three acting force magnets;

[0022] Figure 3 It is a structure schematic view that the rotating shaft power assisting device according to the embodiment of the present utility model includes four acting force magnets;

[0023] Figure 4 It is a structure schematic view that the rotating shaft power assisting device according to the embodiment of the present utility model includes five acting force magnets.

[0024] In the drawings, 1-outer shell, 11-slot, 12-magnet fixed cabin, 121-cabin body, 122-inspection cover, 21-rotating wheel, 22-planetary magnet, 23-acting force magnet, 3-rotating shaft main body, 41-first fixed wing plate, 42-second fixed wing plate, 43-fixed bolt, 51-fixed lug, 52-groove, 6-elastic member.

[0025] The same reference numbers in all the drawings indicate similar or corresponding features or functions. DETAILED DESCRIPTION

[0026] In view of the foregoing, in the prior art, the frictional resistance generated by the rotating shaft in the rotating direction causes the rotating shaft to rotate with difficulty, consumes a large amount of energy, is prone to noise and vibration, and the high temperature generated by the frictional resistance is prone to cause wear of the rotating shaft, and the like, and a rotating shaft assisting device and a rotating shaft are proposed.

[0027] The specific embodiments of the utility model will be described in detail below with reference to the drawings.

[0028] In order to illustrate the rotating shaft assisting device and the rotating shaft provided by the utility model, Figure 1 The structure of the rotating shaft assisting device according to the embodiment of the utility model is shown when the rotating shaft assisting device includes two force magnets; Figure 2 The structure of the rotating shaft assisting device according to the embodiment of the utility model is shown when the rotating shaft assisting device includes three force magnets; Figure 3 The structure of the rotating shaft assisting device according to the embodiment of the utility model is shown when the rotating shaft assisting device includes four force magnets; Figure 4 The structure of the rotating shaft assisting device according to the embodiment of the utility model is shown when the rotating shaft assisting device includes five force magnets.

[0029] As Figures 1 to 4 The rotating shaft assisting device provided by the utility model includes a shell 1 and an assisting mechanism; wherein the shell 1 is sleeved on the outer periphery of the rotating shaft body 3, a slot 11 is formed on the inner side wall of the shell 1, and a magnet fixing cabin 12 is fixed outside the slot 11; the assisting mechanism includes a rotating wheel 21 fixedly sleeved on the outer periphery of the rotating shaft body 3, a planetary magnet 22 obliquely arranged on the outer periphery of the rotating wheel 21, and a force magnet 23 arranged in the inner cavity of the magnet fixing cabin 12; the head end of the force magnet 23 is clamped at the slot 11 and is arranged in a same-pole opposite manner with the head end of the planetary magnet 22.

[0030] The magnet refers to a substance or material capable of generating a magnetic field, which is generally divided into permanent magnets and soft magnets. Magnetic poles have mutual action, and same-named magnetic poles repel each other, and different-named magnetic poles attract each other. The utility model utilizes the repulsive force between the same magnetic poles of the magnet to design a rotating shaft assisting device which has an assisting effect on the rotating direction of the rotating shaft and an inhibiting effect on the reverse rotation of the rotating shaft.

[0031] The shell 1 and the rotating wheel 21 are both non-magnetic materials. The outside of the slot 11 refers to the outside of the shell 1.

[0032] The force magnet 23 is preferably but not limited to a cuboid shape, the head end thereof is arranged opposite to the head end of the planetary magnet 22, and there is a gap between the two. The head end of the planetary magnet 22 and the head end of the force magnet 23 are placed in a same-pole opposite manner, so that there is a repulsive force between the two.

[0033] By sheathing the shell 1 on the outer periphery of the rotating shaft body 3, the force magnet 23 in the assisting mechanism is fixed in the magnet fixing cabin 12 of the shell 1, and the rotating wheel 21 is fixedly sleeved on the outer periphery of the rotating shaft body 3, the planetary magnet 22 is arranged on the outer periphery of the rotating wheel 21, the head end of the force magnet 23 is arranged in the same polarity with the head end of the planetary magnet 22, so that the repulsion force between the force magnet 23 and the planetary magnet 22 can be effectively utilized, when the rotating shaft body 3 rotates along the direction in which the planetary magnet 22 is inclined, the repulsion force between the force magnet 23 and the planetary magnet 22 plays a pushing role on the rotating shaft body 3, thereby reducing the output of energy, and a part of the friction resistance during rotation can be offset, the wear of the rotating shaft body 3 is reduced, and the noise and vibration generated by the friction of the rotating shaft body 3 are effectively reduced; when the rotating shaft body 3 rotates against the direction in which the planetary magnet 22 is inclined, the repulsion force between the force magnet 23 and the planetary magnet 22 plays a hindering role on the rotating shaft body 3, so that it can be used in scenes with special requirements for the rotating direction of the rotating shaft, such as the axle of a toy car; and the force between the force magnet and the planetary magnet is not affected by the environment such as high speed and high temperature.

[0034] As a preferred scheme of the present application, the magnet fixing cabin 12 comprises a cabin body 121 fixed at one end outside the slot 11 and an inspection cover 122 arranged at the other end of the cabin body 121; the inspection cover 122 is detachably connected with the end of the cabin body 121. The detachable connection between the inspection cover 122 and the end of the cabin body 121 facilitates maintenance or replacement of parts when the force magnet 23 fails.

[0035] As a preferred scheme of the present application, a first fixed wing plate 41 is arranged at the outer periphery of the end of the cabin body 121; a second fixed wing plate 42 is arranged at the outer periphery of the end of the inspection cover 122; fixed bolt holes are correspondingly arranged on the first fixed wing plate 41 and the second fixed wing plate 42; the first fixed wing plate 41 and the second fixed wing plate 42 are fixedly connected by the fixed bolt 43 inserted into the fixed bolt hole. The first fixed wing plate 41 and the second fixed wing plate 42 facilitate the two-section fixation between the cabin body 121 and the inspection cover 122, and of course other detachable structures can be used instead of the above-mentioned bolt structure, which is not particularly limited in the present application.

[0036] As a preferred scheme of the present application, a fixed protrusion 51 is arranged on the inner end plate of the inspection cover 122; a groove 52 matched with the fixed protrusion 51 is arranged at the tail end of the force magnet 23; the fixed protrusion 51 is inserted into the groove 52. The tail end of the force magnet 23 is provided with the groove 52, which is preferably but not limited to a cylindrical groove, and the inspection cover 122 is provided with the fixed protrusion 51 which is inserted into the groove 52 of the force magnet, so as to maintain the stability of the whole.

[0037] As an optimal scheme of the utility model, the elastic member 6 is sleeved on the tail end of the force magnet 23; one end of the elastic member 6 is sleeved on the force magnet 23, and the other end abuts against the inner end plate of the maintenance cover 122. When the force magnet 23 and the planet magnet 22 repel each other, the elastic member 6 can push the force magnet 23 to the inside of the shell 1 and be clamped on the notch 11, thereby playing a role of stabilizing the position of the force magnet 23 in the magnet fixing cabin 12.

[0038] As an optimal scheme of the utility model, the elastic member 6 is a damping spring.

[0039] It should be noted that the elastic member 6 in the utility model is preferably but not limited to a damping spring, and other elastic members such as a spring plate can also be used instead, and the utility model does not make special limitations on this.

[0040] As an optimal scheme of the utility model, the number of the force magnets 23 is at least two; the force magnets 23 are uniformly arranged on the periphery of the shell 1; and the number of the planet magnets 22 is at least six; the planet magnets 22 are uniformly arranged on the periphery of the rotating wheel 21.

[0041] It should be noted that the number of the force magnets 23 and the planet magnets 22 in the utility model can be set according to actual needs, and the utility model does not make special limitations on this. Figures 1-4 As shown in the figure, the number of the force magnets 23 is two, three, four and five respectively. The planet magnets 22 are arranged in a clockwise direction, so when the rotating wheel 21 rotates clockwise, the planet magnets 22 will be repelled by the force magnets 23 when passing through the force magnets 23, and the planet magnets 22 will be subjected to a thrust force from the force magnets 23, thereby accelerating the movement. Conversely, when the rotating wheel 21 reverses, the planet magnets 22 will be subjected to a resistance force from the force magnets 23, and the rotation will become difficult. The utility model can increase the number of the force magnets 23 to obtain higher torque density.

[0042] As an optimal scheme of the utility model, the force magnet 23 is a permanent magnet. The force magnet 23 is preferably but not limited to a permanent magnet.

[0043] As an optimal scheme of the utility model, the magnet fixing cabin 12 and the shell 1 are integrally formed, which makes the overall structure more firm.

[0044] The rotating shaft provided by the utility model comprises a rotating shaft body 3 and a rotating shaft assisting device as described above. The rotating shaft assisting device can be applied to the axle (rotating shaft) of a non-powered toy car, so that the device can run farther, and can also be applied to a rotating shaft with power transmission to reduce power consumption.

[0045] It can be seen from the above specific embodiment that the rotating shaft assisting device and the rotating shaft provided by the utility model, through the shell which is sleeved on the outer periphery of the rotating shaft body, the acting force magnet in the assisting mechanism is fixed in the magnet fixing cabin of the shell, and the rotating wheel is fixedly sleeved on the outer periphery of the rotating shaft body, the planetary magnet is arranged on the outer periphery of the rotating wheel in an inclined mode, the head end of the acting force magnet and the head end of the planetary magnet are arranged in a same-pole opposite mode, thereby the repulsion force between the same poles of the acting force magnet and the planetary magnet can be effectively utilized, when the rotating shaft body rotates along the direction in which the planetary magnet is inclined, the repulsion force between the acting force magnet and the planetary magnet plays a pushing role on the rotating shaft body, thereby the output of energy can be reduced, a part of friction resistance during rotation can be offset, the abrasion of the rotating shaft body is reduced, and the noise and vibration generated by the rotating shaft body due to friction are effectively reduced; when the rotating shaft body rotates against the direction in which the planetary magnet is inclined, the repulsion force between the acting force magnet and the planetary magnet plays a hindering role on the rotating shaft body, so that it can be used in the scene which has special requirements for the rotating direction of the rotating shaft, for example, the axle of a toy car; and the acting force between the acting force magnet and the planetary magnet is not affected by the environment such as high speed and high temperature.

[0046] The rotating shaft assisting device and the rotating shaft according to the utility model are described above with reference to the drawings in an exemplary manner. However, it should be understood by those skilled in the art that various improvements can be made to the above-mentioned rotating shaft assisting device and the rotating shaft according to the utility model without departing from the content of the utility model. Therefore, the protection scope of the utility model should be determined by the content of the appended claims.

Claims

1. A rotational axis assist device, characterized by, It comprises a shell and a power assisting mechanism; wherein, The shell is sleeved on the outer periphery of the rotating shaft body, a slot is formed on the inner side wall of the shell, and a magnet fixing cabin is fixed outside the slot; The power assisting mechanism comprises a rotating wheel fixedly sleeved on the outer periphery of the rotating shaft body, a planetary magnet obliquely arranged on the outer periphery of the rotating wheel, and an acting force magnet arranged in the inner cavity of the magnet fixing cabin; the head end of the acting force magnet is clamped at the slot and is arranged in a same-pole opposite manner with the head end of the planetary magnet.

2. The rotating shaft power assisting device according to claim 1, wherein, The magnet fixing cabin comprises a cabin body fixed at one end outside the slot and an inspection cover arranged at the other end of the cabin body; the inspection cover is detachably connected with the end of the cabin body.

3. The rotating shaft power assisting device according to claim 2, wherein, A first fixed wing plate is arranged on the outer periphery of the end of the cabin body; A second fixed wing plate is arranged on the outer periphery of the end of the inspection cover; Fixed bolt holes are correspondingly arranged on the first fixed wing plate and the second fixed wing plate; The first fixed wing plate and the second fixed wing plate are fixedly connected through the fixed bolts inserted into the fixed bolt holes.

4. The rotating shaft power assisting device according to claim 2, wherein, A fixed protrusion is arranged on the inner end plate of the inspection cover; A groove matched with the fixed protrusion is formed on the tail end of the acting force magnet; The fixed protrusion is inserted into the groove.

5. The rotating shaft power assisting device according to claim 2, wherein, An elastic member is sleeved on the outer periphery of the tail end of the acting force magnet; One end of the elastic member is sleeved on the acting force magnet, and the other end is abutted against the inner end plate of the inspection cover.

6. The rotating shaft power assisting device according to claim 5, wherein, The elastic member is a shock-absorbing spring.

7. The rotating shaft power assisting device according to claim 1, wherein, The number of the acting force magnets is at least two; the acting force magnets are uniformly arranged on the periphery of the shell; The number of the planetary magnets is at least six; the planetary magnets are uniformly arranged on the outer periphery of the rotating wheel.

8. The rotating shaft power assisting device according to claim 1, wherein, The acting force magnet is a permanent magnet.

9. The rotating shaft power assisting device according to claim 1, wherein, The magnet fixing cabin and the shell are integrally formed.

10. A rotating shaft comprising a rotating shaft body, characterized by The rotating shaft power assisting device according to any one of claims 1-9 is further provided.

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