CN216683930U

CN216683930U - Special wheel for self-balancing vehicle

Info

Publication number: CN216683930U
Application number: CN202123363008.9U
Authority: CN
Inventors: 章征凯
Original assignee: Guangxi Yongxiang New Energy Vehicle Technology Co ltd
Current assignee: Guangxi Yongxiang New Energy Vehicle Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-06-07
Anticipated expiration: 2031-12-30

Abstract

The utility model provides a special wheel for a self-balancing vehicle, which comprises a hollow wheel hub, wherein a balance weight cavity with a semicircular section is arranged in the wheel hub, an axle seat is arranged on an upper end cover plate of the balance weight cavity, an axle shaft is arranged in the axle seat, two ends of the axle shaft are respectively movably connected with two side panels of the wheel hub through a left bearing and a right bearing, and two free ends of the axle shaft extend out of the wheel hub; a motor base is further fixed on the shaft base, a motor is connected in the motor base, a motor shaft gear is fixed on a power output shaft of the motor, an output gear is arranged in the center of one side panel of the wheel hub, and the motor shaft gear is in transmission connection with the output gear; the right bearing is nested in the inner cavity of the output gear. The special wheel for the self-balancing vehicle has certain self-balancing capability, and can be suitable for single-wheel or double-wheel balancing vehicles.

Description

Special wheel for self-balancing vehicle

Technical Field

The utility model relates to a wheeled vehicle, in particular to a wheel special for a self-balancing vehicle.

Background

The self-balancing bicycle is also called a body-sensing bicycle, and is a novel green product used by modern people as a travel tool and leisure and entertainment. The self-balancing vehicle has various types, mainly comprises a single wheel and two wheels in the market, and the two wheels are divided into a series type and a parallel type. From the use angle, the self-balancing bicycle can be used as a low-strength travel tool and a leisure and entertainment product. From the perspective of the weight and the load, a large-sized self-balancing vehicle can be loaded with the weight of an adult, and a small-sized self-balancing vehicle can be used as a robot with a camera and other devices mounted thereon.

Self-balancing vehicles are designed based on a basic principle called Dynamic Stabilization (Dynamic Stabilization), and detect changes of vehicle body postures by using a gyroscope and an acceleration sensor inside a vehicle body, and accurately drive a motor to perform corresponding adjustment by using a servo control system so as to keep balance of the system. In the prior art, the attitude control is mainly carried out by means of electronic equipment, and related equipment which completely depends on a mechanical structure to realize a self-balancing function is lacked.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a wheel special for a self-balancing vehicle, which has certain self-balancing capacity and can be suitable for a single-wheel or double-wheel balancing vehicle.

In order to solve the technical problem, the wheel special for the self-balancing vehicle comprises a hollow wheel hub, wherein a balance weight cavity with a semicircular section is arranged in the wheel hub, a shaft seat is arranged on an upper end cover plate of the balance weight cavity, a wheel shaft is arranged in the shaft seat, two ends of the wheel shaft are respectively and movably connected with two side panels of the wheel hub through a left bearing and a right bearing, and two free ends of the wheel shaft extend out of the wheel hub; a motor seat is further fixed on the shaft seat, a motor is connected in the motor seat, a motor shaft gear is fixed on a power output shaft of the motor, an output gear is arranged at the center of one side panel of the hub, and the motor shaft gear is in transmission connection with the output gear; the right bearing is nested in the inner cavity of the output gear.

The wheel hub is sleeved with a tire.

The ratio of the width to the diameter of the hub is 1: 2-1: 4.

the utility model takes the wheel shaft as a support, the load above the wheel shaft and the counterweight cavity below the wheel shaft form mutual compensation, and after the counterweight is additionally arranged, the total weight of the counterweight cavity is greater than that of the motor and the matching device above the counterweight cavity, thereby having certain self-balancing capability. The utility model is realized completely based on mechanical structure and has low cost. The utility model is suitable for vehicles such as single-wheel vehicles, two-wheel vehicles and the like, and has wide application prospect.

Drawings

FIG. 1 is an exploded view of a wheel dedicated to a self balancing vehicle of the present invention;

FIG. 2 is a schematic view of the counterweight chamber, axle, and motor assembly;

FIG. 3 is a cross-sectional view of a wheel dedicated to the self-balancing vehicle of the present invention;

fig. 4 is a schematic structural diagram of the first embodiment.

Detailed Description

As shown in fig. 1, 2 and 3, the wheel special for the self-balancing vehicle of the present invention includes a hollow wheel hub 1, a balancing cavity 2 with a semicircular cross section is arranged inside the wheel hub 1, an upper end cover plate 20 of the balancing cavity 2 is provided with a shaft seat 3, a wheel shaft 4 is arranged in the shaft seat 3, two ends of the wheel shaft 4 are movably connected with two side panels of the wheel hub 1 through a left bearing 5 and a right bearing 5', and two free ends of the wheel shaft 4 extend out of the wheel hub 1; a motor base 6 is further fixed on the shaft base 3, a motor 7 is connected in the motor base 6, a motor shaft gear 70 is fixed on a power output shaft of the motor 7, an output gear 10 is arranged at the center of one side panel of the hub 1, and the motor shaft gear 70 is in transmission connection with the output gear 10; the right bearing 5' is nested within the inner cavity of the output gear 10.

As shown in fig. 2, in the present embodiment, the motor 7 uses a speed reduction motor, a power output shaft of the speed reduction motor deviates from a central axis of the motor, and the motor shaft gear 70 is disposed below the central axis of the motor, so as to facilitate the matching of each component in a narrow space.

The hub 1 is sleeved with a tire 21.

Example one

As shown in fig. 4, the embodiment provides a front-rear tandem self-balancing vehicle, which includes a frame 80, wherein the frame 80 is provided with a front fork 81 and a rear fork 82, the front fork 81 is connected with a front wheel, and the rear fork 82 is provided with a rear wheel; at least one of the front wheel and the rear wheel is set as a special wheel for the self-balancing vehicle provided by the utility model.

The frame 80 is also provided with a battery through a battery box 801. The front fork 81 is provided with a steering wheel 83.

As can be seen from fig. 1 and 2, the two free ends of the axle 4 are symmetrically cut with locating surfaces, and the front fork 81 and the rear fork 82 are respectively clamped with the axle 4. When the vehicle moves, the counterweight cavity 2, the shaft seat 3 and the wheel shaft 4 do not rotate, and the wheel hub 1 and the tire 21 rotate.

The working principle is as follows:

the inner cavity of the wheel shaft 4 is hollow, and an electric wire passes through the inner cavity and is connected with the motor 7; the other end of the wire is connected to the battery in the battery case 801. When the power is switched on, the motor 7 works and drives the hub 1 to rotate through the output gear 10 via the motor shaft gear 70, at the moment, the balance car walks, and when the steering wheel is stressed, the balance car turns.

A counterweight is arranged in the counterweight cavity 2, the weight of the counterweight below the counterweight cavity is larger than the load weight of a motor base 6, a motor 7 and the like above the counterweight cavity by taking the wheel shaft 4 as a fulcrum; the distribution of the centers of gravity of the wheels dedicated to this self-balancing vehicle is shown by the dotted line in fig. 3, and when the tire 21 lands on the ground, the center of gravity of this wheel is below the wheel axle 4, and the two distal ends of the ground line of the tire 21 and the center of gravity of this wheel are distributed in an isosceles triangle. At the moment, the gravity center of the wheel is balanced and has certain resetting capability.

When this wheel verts in certain range, its focus takes place to deviate, and counter weight chamber 2 plays the effect of restoring to the throne this moment to make the wheel focus resume the normal position, thereby realize the self-balancing function.

The balance range of any balance car or wheel is limited, and overturning can occur when the center of gravity deviates too much. In the present invention, the balance ability can be improved by appropriately enlarging the ratio of the width to the diameter of the hub 1, and as a recommended value, the ratio of the width to the diameter of the hub 1 is 1: 2-1: 4.

the utility model is particularly suitable for matching with a small self-balancing vehicle and can be designed into a single-wheel or double-wheel working mode.

The embodiments of the present invention include, but are not limited to, the above-mentioned embodiments, and those skilled in the art can make various corresponding changes and modifications according to the present invention without departing from the spirit and the substance of the present invention, and still fall into the scope of the present invention.

Claims

1. The utility model provides a special wheel of self-balancing car, includes hollow wheel hub (1), its characterized in that: a balance weight cavity (2) with a semicircular section is arranged in the hub (1), a shaft seat (3) is arranged on an upper end surface cover plate (20) of the balance weight cavity (2), a wheel shaft (4) is arranged in the shaft seat (3), two ends of the wheel shaft (4) are movably connected with two side panels of the hub (1) through a left bearing (5 ') and a right bearing (5') respectively, and two free ends of the wheel shaft (4) extend out of the hub (1); a motor seat (6) is further fixed on the shaft seat (3), a motor (7) is connected in the motor seat (6), a motor shaft gear (70) is fixed on a power output shaft of the motor (7), an output gear (10) is arranged in the center of one side panel of the wheel hub (1), and the motor shaft gear (70) is in transmission connection with the output gear (10); the right bearing (5') is nested in the inner cavity of the output gear (10).

2. The wheel dedicated for self-balancing vehicle of claim 1, wherein: the wheel hub (1) is sleeved with a tire (21).

3. The wheel dedicated for self-balancing vehicle of claim 1, wherein: the ratio of the width to the diameter of the hub (1) is 1: 2-1: 4.