CN103335088A - Magnetic bevel gear for non-contact type space crossing driving and manufacturing method and application thereof - Google Patents

Abstract

The invention relates to a magnetic bevel gear for non-contact space transmission and its manufacturing method and application. It is applied to production transmission mechanisms and equipment that have transmission requirements for space cross axes and are dust-free. It consists of an iron shaft and a tapered shaft end made of NdFeB permanent magnet material bonded and pressed. Most of its magnetic poles are obtained by multi-pole radial magnetization, and are evenly distributed on the tapered surface of the tapered shaft end in a trapezoidal shape. And the adjacent magnetic poles are different poles. The above-mentioned two magnetic gears are installed and used in cross-space. The two magnetic bevel gears are non-contact, and there is an effective gap between them. Torque can be generated through the attractive and repulsive forces between the magnetic poles, so that the driving gear drives the driven gear to run. The invention has the advantages of simple structure, convenient maintenance, high bearing capacity, dust-proof and mechanical wear-proof, low noise, small vibration, safety and reliability, long service life and the like.

Description

Magnetic bevel gear for non-contact spatial cross transmission, manufacturing method and application thereof

technical field

The present invention relates to a magnetic bevel gear and its manufacturing method and application, especially a magnetic bevel gear for non-contact space cross transmission and its manufacturing method and application. The bevel gear is used in transmission devices or equipment, especially in occasions that require a dust-free production environment, and a large torque transmission device or equipment that requires space crossing for the transmission direction of the shaft.

Background technique

 The traditional mechanical gear transmission mechanism, because it is all contact transmission, will inevitably generate particles and dust during the workpiece process. In some high-tech fields, the requirements for the production environment are very strict, so in today's transmission technology, there are non-gear contact magnetic gears with the advantages of high cleanliness and no wear. However, in the previous magnetic gear technology, the transmission between non-contact space cross shafts cannot be realized, and most of the magnetic gears are spliced and inlaid, and the manufacturing process is relatively complicated. (such as the patent 200610112951.3A A kind of pole permanent magnet structure magnetic gear and its magnetic gear set). The transmission magnetic gears between the non-contact space cross shafts that have been proposed have a small rotation radius and cannot realize large torque transmission. (such as patent 200710047483.0 Magnetic gears for non-contact space cross transmission and its manufacturing method and application).

Contents of the invention

The object of the present invention is to provide a magnetic bevel gear capable of realizing non-contact space cross transmission and its manufacturing method and application, which can provide a safe production environment with cleanliness, high torque, low noise and low vibration.

the

In order to achieve the above object, the present invention adopts following technical scheme:

A magnetic bevel gear for non-contact spatial cross transmission, comprising a magnetic bevel gear, characterized in that:

1) The magnetic poles are evenly distributed on the bevel surface of the magnetic bevel gear at intervals between S pole and N pole,

2) The magnetic poles are arranged circumferentially in a trapezoidal shape,

3) The arrangement of all magnetic poles forms a smooth complete cone.

The tapered shaft end of the above-mentioned magnetic bevel gear is a bonded and pressed body made of NdFeB material as a whole, and its magnetic pole is composed of radial multi-pole magnetization on the surface of the bonded pressed body.

A method for manufacturing a magnetic bevel gear for non-contact space cross transmission, which is used to manufacture a magnetic bevel gear for non-contact space cross transmission, characterized in that the tapered shaft end of the magnetic bevel gear is made of NdFeB permanent magnet material through bonding It is formed by pressing, and then the magnetic poles are obtained by radial multi-pole magnetization on the outer surface.

The application of magnetic bevel gears for non-contact space cross transmission is characterized in that it is applied to the production transmission mechanism that has transmission requirements for space cross shafts and is dust-free. In the non-contact space cross transmission, two magnetic The space crossing of the bevel gears should retain an effective gap, and the effective torque can be generated by the magnetic force of the magnetic poles of the two magnetic bevel gears to realize the transmission.

Compared with the existing technology, the present invention has the following obvious substantive features and advantages: the magnetic bevel gear of the present invention has simple structure, convenient manufacture and convenient maintenance, and can realize the transmission function of traditional gears in a non-contact manner, and is relatively Among them, it has the advantages of dustproof and mechanical wear resistance, low noise, small vibration, safety and reliability, and long service life. The magnetic bevel gear of the invention can realize the transmission between the space cross shafts.

Description of drawings

Fig. 1 is a structural schematic diagram of a magnetic bevel gear according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of a transmission mechanism applied to the embodiment of Fig. 1 .

Detailed ways

Preferred embodiments of the present invention are described in detail as follows in conjunction with the accompanying drawings;

Embodiment one:

Referring to Fig. 1, the magnetic bevel gear for non-contact space cross transmission includes a magnetic bevel gear, which is characterized in that:

1) The magnetic poles are evenly distributed on the bevel surface of the magnetic bevel gear at intervals between S pole and N pole,

2) The magnetic poles are arranged circumferentially in a trapezoidal shape,

3) The arrangement of all magnetic poles forms a smooth complete cone.

Embodiment two:

This embodiment is basically the same as Embodiment 1, and the special feature is that: the entire tapered shaft end is a bonded pressed body made of NdFeB material, and its magnetic pole is formed by a radial multi-pole magnetization structure on the surface of the bonded pressed body. magnetic pole.

Embodiment three:

The method for manufacturing the above-mentioned magnetic bevel gear for non-contact space cross transmission is used to manufacture the

The magnetic bevel gear for non-contact space cross transmission described above is characterized in that the conical shaft end of the magnetic bevel gear is made of NdFeB permanent magnet material through bonding and pressing, and then the conical surface is obtained by radial multi-pole magnetization magnetic pole.

Embodiment four:

The application of the magnetic bevel gear for the above-mentioned non-contact space cross transmission is characterized in that it is applied to the production transmission mechanism that has transmission requirements for the space cross shaft and is dust-free. In the non-contact space cross transmission, two magnetic The space crossing of the bevel gears should retain an effective gap, and the effective torque can be generated by the magnetic force of the magnetic poles of the two magnetic gears to realize the transmission.

Embodiment five:

See Figures 1 and 2. The tapered shaft end of the magnetic bevel gear for non-contact space cross transmission is made of NdFeB permanent magnet material through bonding and pressing. The outer surface of the tapered shaft end is smooth. After magnetization, a multi-pole magnetic bevel gear with adjacent magnetic poles and different poles is obtained. Figure 1 shows that the magnetic poles are evenly distributed on the conical surface in a trapezoidal shape. Figure 2 shows that two magnetic bevel gears are installed according to the space cross axis, the two magnetic gears are non-contact, and there is an effective gap between them, and the magnetic poles of the two magnetic bevel gears coincide exactly to realize the transmission. The gear transmission of the present invention is not a tooth meshing transmission, but relies on the attraction and repulsion between the positive and negative poles of the magnetic gears to generate torque to realize the transmission.

The specific transmission working principle of the non-contact space cross transmission magnetic bevel gear: firstly, after the two magnetic bevel gears are installed according to the above method, when the magnetic gear 1 (drive wheel) is rotated, the pole at the mark 3 on the gear 1 is provisionally The polarity is N, and at this time the polarity of the mark 5 on the gear 2 is S, then the N and S poles attract each other at this time, so when the gear 1 rotates, due to the magnetic force, the gear 2 will also rotate accordingly. And the polarity of the mark 4 on the gear 1 is the S pole, then after the gear 1 rotates, the magnetic pole at the mark 4 will also be the same as the magnetic pole at the mark 5 on the gear 2, so a repulsive force will also be generated , and the place marked 6 on the gear 2 is opposite poles, thereby also promoting the gear 2 to rotate. the

Claims (4)

1. A magnetic bevel gear for non-contact space cross transmission, comprising a magnetic bevel gear, characterized in that: 1) The magnetic poles are evenly distributed on the bevel surface of the magnetic bevel gear at intervals between S pole and N pole, 2) The magnetic poles are arranged circumferentially in a trapezoidal shape, 3) The arrangement of all magnetic poles forms a smooth and complete cone. 2. The magnetic bevel gear for non-contact space cross transmission according to claim 1, characterized in that the entire tapered shaft end is a bonded and pressed body made of NdFeB material, and its magnetic pole is more radial than the surface of the bonded pressed body. Magnetic poles formed by pole magnetization. 3. The manufacturing method of magnetic bevel gear for non-contact space cross transmission, used to manufacture the magnetic bevel gear for non-contact space cross transmission according to claim, which is characterized in that the tapered shaft end of magnetic bevel gear is made of neodymium The iron-boron permanent magnet material is made by bonding and pressing, and then the cone surface is magnetized by radial multi-pole to obtain the magnetic pole. 4. The application of the magnetic bevel gear for non-contact space cross transmission according to claim 1, which is characterized in that it is applied to the production transmission mechanism that has transmission requirements for the space cross shaft and is dust-free. In space cross transmission, two magnetic bevel gear space cross should keep an effective gap, and the effective torque can be generated by the magnetic force of the magnetic poles of the two magnetic gears to realize the transmission.

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