CN109484518B

CN109484518B - Electric bicycle electronic control support frame

Info

Publication number: CN109484518B
Application number: CN201811642704.3A
Authority: CN
Inventors: 赵旭光; 邱剑
Original assignee: Shaoguan University
Current assignee: Shaoguan University
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2021-07-30
Anticipated expiration: 2038-12-29
Also published as: CN109484518A

Abstract

The invention relates to an electric control support frame for an electric bicycle, which comprises left-right symmetrical double slewing support rods. One end of the slewing support rod is connected with the power of a DC motor through a transmission shaft. The shaft rotates clockwise or counterclockwise, and the other end of the support rod is equipped with a supporting caster; when the two rotating support rods rotate clockwise until the two supporting casters touch the ground to form an effective support, the electric bicycle forms two wheels and two supports The four corners of the casters are on the ground.

Description

Electric control support frame of electric bicycle

Technical Field

The invention belongs to the technical field of bicycle frames, and relates to an electric control support frame for an electric bicycle.

Background

The electric bicycle is a common travel tool at present, and a support frame of the electric bicycle has two pure mechanical structures of single support and double support at present, and the electric bicycle is most widely applied to the double support frame. These support frames simple structure, however, it is inconvenient often during the use, if when parkking, need to lift the car rear portion, it is more laborious, in addition, when running and meet the temporary parking circumstances such as traffic lights in rainy day, in order to keep the automobile body balanced, need stretch out the raincoat with a foot and prop on ground outward, the shoes of wetting easily, it is very inconvenient.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides the electric control support frame for the electric bicycle, two support trundles and two wheels of the electric control support frame form a four-foot landing mode, the stability during parking is ensured, and the electric control support frame is labor-saving and convenient to operate.

The technical scheme adopted by the invention for solving the technical problems is as follows: an electric control support frame of an electric bicycle comprises bilaterally symmetrical double-rotation support rods, wherein one end of each rotation support rod is connected with the power of a direct current motor through a transmission shaft, the rotation support rods rotate clockwise or anticlockwise around the transmission shafts through the forward rotation and the reverse rotation of the direct current motor, and the other ends of the support rods are provided with support trundles; when the two rotary supporting rods rotate clockwise until the two supporting trundles are grounded to form effective support, the electric bicycle forms a mode that the two wheels and the four corners of the two supporting trundles are grounded.

Furthermore, the direct current motor adopts a double-shaft output turbine speed reduction direct current motor, and the transmission shaft is connected with a turbine speed reducer output shaft of the direct current motor through a spring coupling.

Furthermore, the direct current motor is installed in a metal frame of the support and is reinforced through a motor fastening pin, shaft sleeves are respectively installed at two ends of the support, a transmission shaft is connected into the shaft sleeves, and the transmission shaft is connected with the rotary supporting rod through the fastening pin.

Furthermore, after the bracket is installed on the vehicle body, when the ground is horizontal, the axis of the rotary supporting rod and the plumb line should keep a certain angle alpha (alpha = 10-30 degrees), so that when the vehicle stops on the uneven ground, the rotary supporting rod on the side of the low-level ground can be driven to generate a larger rotary angle (0-30 degrees) by virtue of the torsional stress of the spring in the spring coupling, the two rotary supporting rods/supporting casters can be effectively supported on the ground, and when the gradient of the cross slope of the road surface is less than 5 percent, the vehicle body can keep balance.

Furthermore, the bracket is provided with a mounting hole which corresponds to the mounting hole on the mounting convex plate of the original vehicle support frame, and the bracket is fixed at the bottom of the vehicle body through a connecting bolt.

Furthermore, one end of the rotary supporting rod is provided with a groove, and the supporting caster is arranged in the groove.

Furthermore, one end of the bracket is provided with an upper rotary supporting rod limiting pin and a lower rotary supporting rod limiting pin, and limiting inductors are respectively arranged on the upper rotary supporting rod limiting pin and the lower rotary supporting rod limiting pin and are connected with the direct current motor to limit the rotary angle of the rotary supporting rod.

Furthermore, the support is made of steel plates through welding, stamping, drilling and other processes.

The invention has the beneficial effects that: the direct current motor is adopted for driving, when the bicycle is parked, the electric bicycle forms a four-foot landing form of two wheels and two supporting trundles, the state of the bicycle is very stable, and the operation is labor-saving and convenient; the turbine speed reducer has the characteristics of compact structure, large transmission ratio, large rotating torque and self-locking, so that the action of the rotary supporting rod is very stable and reliable; by adopting the spring coupling, when the vehicle needs to be parked, the forward rotation angles of the two rotation supporting rods can be allowed to be different by virtue of the axial torsion characteristic of the spring, so that the supporting effect of the supporting caster wheel on a rough road surface is improved; when the motor is not rotated reversely and the two supporting casters are not retracted at the beginning of running, the rigid impact on the double-shaft output turbine speed reducing motor caused by the uneven ground is relieved.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is a split view of FIG. 2;

fig. 4 is a schematic view of the installation position of the present invention.

In the figure: 1. supporting a caster; 2. a rotary support rod; 3. fastening a pin; 4. a shaft sleeve; 5. a connecting bolt; 6. a vehicle body; 7. mounting a convex plate on the original vehicle support frame; 8. a drive shaft; 9. a spring coupling; 10. a direct current motor; 11. a support; 12. a turbine reducer output shaft; 13. fastening a pin by using a motor; 14. a lower rotary support rod limit pin; 15. go up slewing support pole spacing pin.

Detailed Description

The invention is further illustrated with reference to the following figures and examples.

Referring to fig. 1 to 4, an electric control support frame for an electric bicycle comprises bilaterally symmetrical double-rotation support rods 2, wherein one end of each of the double-rotation support rods 2 is in power connection with a direct current motor 10 through a transmission shaft 8, the double-rotation support rods 2 rotate clockwise or anticlockwise around the transmission shaft 8 through the forward rotation and the reverse rotation of the direct current motor 10, and a support caster 1 is arranged at the other end of each of the double-rotation support rods; when the two rotary supporting rods 2 rotate clockwise until the two supporting trundles 1 land on the ground to form effective support, the electric bicycle forms a form that two wheels and four corners of the two supporting trundles 1 land on the ground.

Furthermore, the direct current motor 10 adopts a double-shaft output turbine speed reduction direct current motor 10, and the transmission shaft 8 is connected with a turbine speed reducer output shaft 12 of the direct current motor 10 through a spring coupling 9.

Furthermore, the direct current motor 10 is installed in a metal frame of the bracket 11 and is reinforced by a motor fastening pin 13, two ends of the bracket 11 are respectively provided with a shaft sleeve 4, a transmission shaft 8 is connected into the shaft sleeve 4, and the transmission shaft 8 is connected with the rotary support rod 2 by a fastening pin 3.

Furthermore, after the electric control support frame is installed on the vehicle body 6, when the ground is horizontal, the axis of the rotary support rod 2 should keep a certain angle α (α = 10-30 °) with the plumb line, so that when the vehicle stops on the uneven ground, the rotary support rod 2 on the side of the low-lying ground can be driven to generate a larger rotary angle (0-30 °) by virtue of the torsional stress of the spring in the spring coupling 9, and the two rotary support rods 2/the support casters 1 can be effectively supported on the ground, and when the gradient of the cross slope of the road surface is less than 5%, the vehicle body 6 can keep balance.

Furthermore, the bracket 11 is provided with a mounting hole which corresponds to a mounting hole on the original vehicle support frame mounting convex plate 7, and the bracket 11 is fixed at the bottom of the vehicle body 6 through the connecting bolt 5.

Furthermore, one end of the rotary support rod 2 is provided with a groove, and the support caster 1 is arranged in the groove.

Furthermore, an upper rotation support rod limit pin 15 and a lower rotation support rod limit pin 14 are arranged at one end of the bracket 11, and limit sensors are respectively arranged on the upper rotation support rod limit pin and the lower rotation support rod limit pin, and are connected with the direct current motor 10 to limit the rotation angle of the rotation support rod 2.

Further, the bracket 11 is made of a steel plate through welding, punching, drilling and other processes.

When the electric bicycle needs to be parked, a button is pressed, the output shaft 12 of the turbine speed reducer of the direct current motor 10 rotates forwards, the rotary support rod 2 is driven to rotate forwards through the spring coupling 9 and the transmission shaft 8, the motor stops rotating after the two support trundles 1 land to form effective support, and at the moment, the vertical state of the bicycle is kept; when the electric button is pressed again, the output shaft 12 of the turbine speed reducer rotates reversely to drive the rotary supporting rod 2 to rotate reversely, the two supporting caster wheels 1 are folded away from the ground, and the vehicle enters a normal running state after reaching a limited position and then the direct current motor 10.

The present invention is not limited to the above-described embodiments, and various changes or modifications to the present invention are intended to be included within the scope of the claims and the equivalent technology of the present invention if they do not depart from the spirit and scope of the present invention.

Claims

1. an electric bicycle electric control support frame, is characterized in that: comprise left and right symmetrical double rotary support rods, and one end of the rotary support rod is connected to a transmission shaft, and the transmission shaft is driven by a spring coupling and a dual-shaft output turbine deceleration DC motor. Connected, through the forward and reverse rotation of the DC motor, the slewing support rod rotates clockwise or counterclockwise around the transmission shaft, and the other end of the support rod is equipped with a supporting caster; when the two slewing support rods rotate clockwise, the two After the supporting casters are on the ground to form an effective support, the electric bicycle forms two wheels and two supporting casters on the ground at four corners; after the bracket is installed on the vehicle body, when the ground is a horizontal plane, the axis of the slewing support rod and the vertical line should be kept constant. The angle α, α=10~30°, so that when the vehicle is parked on the uneven ground, the torsional stress of the spring in the spring coupling can be used to promote the slewing support rod on the side of the low concave ground to generate a larger The slewing angle is 0-30°, so that the two slewing support rods/support casters can be effectively supported on the ground, and the vehicle body can be kept balanced when the slope of the cross slope of the road is less than 5%.

2. The electric bicycle electric control support frame of claim 1, wherein the DC motor is installed in the metal frame of the support and reinforced by motor fastening pins, and the two ends of the support are respectively provided with bushings, the bushings A transmission shaft is connected inside, and the transmission shaft is connected with the slewing support rod through a fastening pin.

3. The electric bicycle electronically controlled support frame of claim 1, wherein a mounting hole is provided on the support frame, and the mounting hole corresponds to the mounting hole on the mounting convex plate of the original vehicle support frame, and is connected by connecting bolts. Fasten the bracket to the bottom of the car body.

4. The electric bicycle electronically controlled support frame according to claim 1, wherein a groove is formed at one end of the slewing support rod, and the supporting caster is installed in the groove.

5. The electric bicycle electronically controlled support frame according to claim 1, wherein an upper slewing support rod limit pin and a lower slewing support rod limit pin are provided at one end of the support, and limit sensors are respectively provided, The limit sensor is connected with the DC motor to limit the rotation angle of the slewing support rod.

6 . The electric-controlled support frame of an electric bicycle according to claim 1 , wherein the frame is made of steel plates through welding, punching and drilling processes. 7 .