阅读说明：本技术 一种磁悬浮列车导向方法及导向轮装置 (Magnetic suspension train guiding method and guide wheel device ) 是由 刘文松 颜瑶 肖祥龙 胡伟辉 林胜 于 2019-10-29 设计创作，主要内容包括：本发明公开了一种磁悬浮列车导向方法及导向轮装置,包括设置带有弹簧和直线轴承的导向轮装置,所述导向轮装置还包括底座、回转轴承、轮轴、导向轮,所述直线轴承设于导向轮内,所述直线轴承套设于轮轴上,轮轴与底座之间通过回转轴承连接,所述弹簧套设于轮轴位于所述导向轮两侧,包括下部弹簧和上部弹簧,所述导向轮两侧分别与上部弹簧一侧和下部弹簧一侧连接,所述底座固定设置于车体上；本发明满足导向轮垂直于车轮旋转方向移动的需求,导向轮可在水平面转动,又可以垂直于水平面上下移动；通过调整弹簧的设计,调整导向轮位置结构,达到导向轮在极小或者极大的范围内进行上下移动。(The invention discloses a magnetic suspension train guiding method and a guide wheel device, which comprise a guide wheel device with a spring and a linear bearing, and further comprise a base, a rotary bearing, a wheel shaft and a guide wheel, wherein the linear bearing is arranged in the guide wheel; the invention meets the requirement that the guide wheel moves perpendicular to the rotation direction of the wheel, and the guide wheel can rotate on the horizontal plane and move up and down perpendicular to the horizontal plane; through the design of adjustment spring, adjustment leading wheel position structure reaches the leading wheel and reciprocates at minimum or very big within range.)

1. A method of guiding a magnetic levitation vehicle, comprising:

the guide wheel device is provided with a spring and a linear bearing, and further comprises a base, a rotary bearing, a wheel shaft and a guide wheel, wherein the linear bearing is arranged in the guide wheel, the linear bearing is sleeved on the wheel shaft, the wheel shaft is connected with the base through the rotary bearing, the spring is sleeved on the wheel shaft and positioned at two sides of the guide wheel and comprises a lower spring and an upper spring, two sides of the guide wheel are respectively connected with one side of the upper spring and one side of the lower spring, and the base is fixedly arranged on a vehicle body; the method with the guide body comprises the following steps:

friction force F (friction) exists between the guide wheel and the track, gravity G exists in the guide wheel, and elasticity F (elasticity) exists in the spring; the value of F (friction) can float up and down due to rail manufacturing errors and shaking of the vehicle body in the running process; the direction of the force causing F (friction) will be downward or upward due to the upward or downward movement of the guide wheel device;

g = F (bullet) in the initial state, and the guide wheel is kept in the middle of the wheel shaft;

when the guide wheel device ascends or descends, the elasticity of F (bullet) is increased, but F (bullet) is less than G + F (friction), and the guide wheel moves on the wheel shaft;

when the vehicle body shakes in the running process to reduce F (friction), and when F (bullet) > G + F (friction), the guide wheel moves to the initial state;

when the guide wheel leaves the track, F (mole) is 0, F (bullet) > G + F (mole), and the guide wheel moves to the initial state.

2. The guide wheel device is used for the guide method of claim 1 and is characterized by comprising a base, a rotary bearing, a wheel shaft, a spring, a linear bearing and a guide wheel, wherein the linear bearing is arranged in the guide wheel, the linear bearing is sleeved on the wheel shaft, the wheel shaft is connected with the base through the rotary bearing, the spring is sleeved on the wheel shaft and positioned on two sides of the guide wheel and comprises a lower spring and an upper spring, two sides of the guide wheel are respectively connected with one side of the upper spring and one side of the lower spring, and the base is fixedly arranged on a vehicle body.

3. The guide wheel apparatus of claim 2, wherein the lower spring is in a compressed state in a natural state, and the lower spring force F (mole) is equal to the guide wheel gravity G.

4. The guide wheel assembly of claim 2 wherein the guide wheel remains in contact with the track at all times during operation.

5. The guide wheel apparatus of claim 2, wherein the linear bearing is a slew linear bearing.

6. The guide wheel device according to claim 2, wherein the guide wheel is located in the middle of the wheel shaft in the initial state of the guide wheel device.

7. The guide wheel apparatus of claim 2, wherein the upper spring is shorter in length than the lower spring.

Technical Field

The invention relates to the technical field of magnetic suspension guidance, in particular to a magnetic suspension train guiding method and a guide wheel device.

Background

At present, in the running process of a maglev train and a part of monorail cars, a bogie can float up and down due to the change of stress and use requirements, and therefore a guide wheel can float up and down along with the bogie.

The guide wheel device with the traditional structure only allows the wheel to roll in a single plane, if the wheel needs to move on a vertical plane, the outer ring of the guide wheel is subjected to sliding friction, and the outer ring of the guide wheel is partially worn for a long time.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a magnetic suspension train guiding method and a guide wheel device, which meet the requirement that a guide wheel moves in a direction vertical to the rotation direction of wheels, and the guide wheel can rotate on a horizontal plane and can move up and down in a direction vertical to the horizontal plane; through the design of adjustment spring, adjustment leading wheel position structure reaches the leading wheel and reciprocates at minimum or very big within range.

The technical scheme adopted for solving the problems in the prior art is as follows:

a method of guiding a magnetic levitation vehicle, comprising:

the guide wheel device is provided with a spring and a linear bearing, and further comprises a base, a rotary bearing, a wheel shaft and a guide wheel, wherein the linear bearing is arranged in the guide wheel, the linear bearing is sleeved on the wheel shaft, the wheel shaft is connected with the base through the rotary bearing, the spring is sleeved on the wheel shaft and positioned at two sides of the guide wheel and comprises a lower spring and an upper spring, two sides of the guide wheel are respectively connected with one side of the upper spring and one side of the lower spring, and the base is fixedly arranged on a vehicle body; the method with the guide body comprises the following steps:

friction force F (friction) exists between the guide wheel and the track, gravity G exists in the guide wheel, and elasticity F (elasticity) exists in the spring; the value of F (friction) can float up and down due to rail manufacturing errors and shaking of the vehicle body in the running process; the direction of the force causing F (mole) will be downward or upward due to the upward or downward movement of the guide wheel assembly.

In the initial state G = F (shot), the guide wheel is held in the middle of the wheel shaft.

When the guide wheel device ascends or descends, the elastic force of F (spring) is increased, but F (spring) < G + F (friction), and the guide wheel moves on the wheel shaft.

When the vehicle body shakes during operation to reduce F (friction), and when F (bullet) > G + F (friction), the guide wheel moves to the initial state.

When the guide wheel leaves the track, F (mole) is 0, F (bullet) > G + F (mole), and the guide wheel moves to the initial state.

The invention also aims to provide a guide wheel device which is used for the guide method and comprises a base, a rotary bearing, a wheel shaft, a spring, a linear bearing and a guide wheel, wherein the linear bearing is arranged in the guide wheel, the linear bearing is sleeved on the wheel shaft, the wheel shaft is connected with the base through the rotary bearing, the spring is sleeved on the wheel shaft and positioned at two sides of the guide wheel and comprises a lower spring and an upper spring, two sides of the guide wheel are respectively connected with one side of the upper spring and one side of the lower spring, and the base is fixedly arranged on a vehicle body.

Further, the lower spring is in a compressed state in a natural state, and the elastic force F (friction) of the lower spring is equal to the gravity G of the guide wheel.

Further, for better guiding, the guide wheels are always in contact with the rail during operation.

Further, the linear bearing is a rotary linear bearing.

Further, when the guide wheel device is in an initial state, the guide wheel is positioned in the middle of the wheel shaft.

Further, the upper spring is shorter in length than the lower spring.

According to the above-mentioned guiding method, the guiding device works as follows:

when the guide wheel device ascends along with the vehicle body, as the sum of the friction force between the guide wheel and the track and the gravity of the guide wheel is greater than the elastic force of the spring, the guide wheel gradually moves downwards along with the linear bearing to compress the lower spring, so that the contact position of the guide wheel and the track is ensured to be unchanged in the vertical direction; when the pressure between the track and the guide wheel is reduced or eliminated, the guide wheel pushes the guide wheel to move upwards due to the elasticity of the lower spring, the guide wheel moves upwards in the vertical direction on the track, and gradually keeps contact with the track again in the upward movement process to generate friction force to reciprocate circularly.

When the guide wheel device descends along with the vehicle body, because the friction force between the guide wheel and the track is greater than the elastic force of the spring, the guide wheel gradually moves upwards along with the linear bearing to compress the upper spring, and the contact position of the guide wheel and the track is ensured to be unchanged in the vertical direction; when the pressure between the track and the guide wheel is reduced or eliminated, the guide wheel pushes the guide wheel to move downwards due to the elasticity of the upper spring, the guide wheel moves downwards in the vertical direction on the track, and gradually keeps contact with the track again in the downward movement process to generate friction force to reciprocate circularly.

The beneficial effects are as follows:

the invention meets the requirement that the guide wheel moves perpendicular to the rotation direction of the wheel, and the guide wheel can rotate on the horizontal plane and move up and down perpendicular to the horizontal plane; through the design of adjustment spring, adjustment leading wheel position structure reaches the leading wheel and reciprocates at minimum or very big within range.

Drawings

FIG. 1 is a schematic structural diagram of a guide wheel device in this embodiment;

FIG. 2 is a schematic view of the stress condition of the guide wheel in this embodiment;

fig. 3 is a schematic view of the ascending force-bearing movement of the guide wheel along with the vehicle body in the embodiment.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

As shown in fig. 1, this embodiment provides a guide wheel device, including base 1, slewing bearing 2, shaft 3, spring 4, linear bearing 5, leading wheel 6, linear bearing 5 is located in leading wheel 6, linear bearing 5 cover is located on shaft 3, be connected through slewing bearing 2 between shaft 3 and the base 1, spring 4 cover is located and is located leading wheel 6 both sides on shaft 3, including lower spring 40 and upper spring 41, leading wheel 6 both sides are connected with upper spring 41 one side and lower spring 40 one side respectively, base 1 is fixed to be set up on the automobile body.

The lower spring 40 is in a compressed state in a natural state, and the elastic force F (friction) of the lower spring 40 is equal to the gravity G of the guide wheel 6.

The guide wheels 6 remain in contact with the rail 7 at all times during operation.

In the present embodiment, the linear bearing 5 is a rotary linear bearing.

In the initial state of the guide wheel device, the guide wheel 6 is positioned in the middle of the wheel shaft 3.

In this embodiment, the upper spring 41 is shorter in length than the lower spring 40.

As shown in fig. 1 and 2, the guiding method of the present invention is as follows:

friction force F (friction) exists between the guide wheel 6 and the track 7, gravity G exists on the guide wheel 6, and elastic force F (elasticity) exists on the spring 4; the value of F (friction) can float up and down due to rail manufacturing errors and shaking of the vehicle body in the running process; the direction of the force causing F (mole) will be downward or upward due to the upward or downward movement of the guide wheel assembly.

In the initial state G = F (bullet), the guide wheel 6 remains in the middle of the axle.

When the guide wheel device ascends or descends, the elastic force of F (spring) is increased, but F (spring) < G + F (friction), and the guide wheel 6 moves on the wheel shaft.

When the vehicle body shakes during operation to reduce F (friction), and when F (bullet) > G + F (friction), the guide wheel 6 moves to the initial state.

When the guide wheel 6 leaves the track, F (mole) is 0, F (bullet) > G + F (mole), and the guide wheel 6 moves to the initial state.

As shown in fig. 1 and 3, the present invention works as follows:

when the guide wheel device ascends along with the vehicle body, as the sum of the friction force between the guide wheel 6 and the track 7 and the gravity of the guide wheel 6 is larger than the elastic force of the spring 4, the guide wheel 6 gradually moves downwards along with the linear bearing 5 to compress the lower spring 40, and the contact position of the guide wheel 6 and the track 7 is ensured to be unchanged in the vertical direction; when the pressure between the track 7 and the guide wheel 6 is reduced or eliminated, the guide wheel 6 pushes the guide wheel to move upwards due to the elastic force of the lower spring 40, the guide wheel 6 moves upwards in the vertical direction on the track 7, and gradually keeps contact with the track 7 again in the process of moving upwards, so that friction force is generated, and the cycle is repeated.

When the guide wheel device descends along with the vehicle body, because the friction force between the guide wheel 6 and the track 6 is greater than the elastic force of the spring 4, the guide wheel 6 gradually moves upwards along with the linear bearing 5 to compress the upper spring 41, and the contact position of the guide wheel 6 and the track 7 is ensured to be unchanged in the vertical direction; when the pressure between the track 7 and the guide wheel 6 is reduced or eliminated, the guide wheel 6 pushes the guide wheel 6 to move downwards due to the elastic force of the upper spring 41, the guide wheel 6 moves downwards in the vertical direction on the track 7, and gradually keeps contact with the track 7 again in the downward movement process, so that friction force is generated, and the cycle is repeated.

This embodiment satisfies the demand that the leading wheel perpendicular to wheel direction of rotation removed, and the leading wheel can rotate on the horizontal plane, can reciprocate perpendicular to horizontal plane again.

It should be understood that the above examples are only for clearly illustrating the technical solutions of the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection of the claims of the present invention.