CN210455094U

CN210455094U - Single-rocker bottom fork assembly

Info

Publication number: CN210455094U
Application number: CN201921153409.1U
Authority: CN
Inventors: 李海军; 朱松岭
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-22
Filing date: 2019-07-22
Publication date: 2020-05-05
Anticipated expiration: 2029-07-22
Also published as: WO2021012830A1

Abstract

The utility model belongs to the technical field of the electric motor car, concretely relates to single rocking arm chain stay assembly. A single rocker bottom fork assembly comprises a side arm, wherein a motor shell used for mounting a motor assembly is formed at one end of the side arm, a mounting cavity is formed at the other end of the side arm, a main shaft used for connecting a wheel hub is movably arranged in the mounting cavity, a driven wheel is arranged at one end of the main shaft, a transmission device is arranged between the motor shell and the driven wheel, a first half body and a second half body are arranged at one end of the side arm, the mounting cavity is formed between the first half body and the second half body, the first half body is connected with one end of the second half body, an elastic gap is formed at the other end of the first half body and the second half body, an eccentric wheel is movably arranged in the mounting cavity. The utility model has the advantages of stable structure, good heat dissipation effect and the like.

Description

Single-rocker bottom fork assembly

Technical Field

The utility model belongs to the technical field of the electric motor car, concretely relates to single rocking arm chain stay assembly.

Background

The rear bottom fork is one of main components for fixing a rear motor wheel and a motor of a motorcycle, an electric vehicle and the like, is indispensable, is generally U-shaped and similar to a fork, and is structurally welded and integrated.

The design of present U-shaped chain stay is all to fix the motor in the chain stay, sets up the main shaft in the one end of chain stay and is used for connecting chain stay and motor, and such design because the both sides of U-shaped chain stay are located the motor both sides, and the volume can seem very big usually, and back chain stay both sides shelter from the motor simultaneously, hinder the heat dissipation of motor, cause the condition emergence of motor overheat damage very easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a single rocking arm chain stay assembly, through the chain stay that adopts the single rocking arm, design side arm and motor casing as an organic whole simultaneously, reduce the chain stay to the area that shelters from of motor, solve the not good problem of motor heat dissipation.

The purpose of the utility model is realized like this:

a single-rocker bottom fork assembly comprises a side arm, wherein a motor shell used for mounting a motor assembly is formed at one end of the side arm, a mounting cavity is formed at the other end of the side arm, a main shaft used for connecting a wheel hub is movably arranged in the mounting cavity, a driven wheel is arranged at one end of the main shaft, and a transmission device is arranged between the motor shell and the driven wheel.

Preferably, one end of each side arm is provided with a first half body and a second half body, a mounting cavity is formed between the first half body and the second half body, the first half body is connected with one end of the second half body, and the other end of each half body forms an elastic gap.

Preferably, an eccentric wheel is movably arranged in the mounting cavity, a mounting hole is formed in the circle center of the eccentric wheel, and the spindle is movably arranged in the mounting hole in a penetrating mode.

Preferably, at least one protrusion is arranged on the eccentric wheel.

Preferably, the side arm is movably provided with a connecting column, one end of the eccentric wheel is movably provided with a connecting plate, and one end of the connecting plate is provided with a chute matched with the connecting column.

Preferably, a brake disc is arranged on the main shaft, and a brake matched with the brake disc is arranged on the connecting plate.

Preferably, one end of the first half body and one end of the second half body are provided with connecting holes, and connecting pieces used for adjusting the size of the elastic gap are arranged in the connecting holes.

Preferably, the shape of the middle part of the side arm is arc-shaped.

Preferably, transmission includes action wheel and follows the driving wheel, and the action wheel rotates and sets up in motor casing one end, be provided with the belt between action wheel and the driven.

Preferably, a plurality of heat dissipation grooves are formed in the motor casing. One side of the motor casing is provided with a connecting position used for connecting a frame, and the eccentric wheel is provided with a plurality of reinforcing ribs.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

1. the bottom fork of single rocking arm that this application adopted, the side arm of bottom fork is integrative design with the motor casing simultaneously, compares prior art, and the rocking arm can't block the motor, can reduce the bottom fork to the radiating influence of motor by at utmost, and the single rocking arm bottom fork assembly of this application has better radiating effect, can reduce the motor because of the emergence of the high damage condition of temperature, guarantees the service quality of electric motor car.

2. The transmission mode of this application adopts belt drive, compares chain drive than before, and this application adopts belt drive, and belt drive has advantages such as exempt from the maintenance, small in noise, longe-lived, and whole car traveles, and the comfort is better, and life is longer simultaneously.

3. The single-rocker-arm bottom fork is adopted in the application, and the design can effectively save space, reduce the size and facilitate installation.

4. The device of the elasticity of regulation belt relies on rotating the eccentric wheel to adjust the elasticity of belt, and the main shaft setting only needs to rotate the eccentric wheel on the center of circle of eccentric wheel for the position change of main shaft only can realize the effect of adjusting the belt elasticity, and it is simple and convenient to use, and the security is high simultaneously.

Drawings

Fig. 1 is a schematic view of the overall structure in the embodiment of the present invention.

Fig. 2 is a schematic structural diagram after the wheel hub is hidden in the embodiment of the present invention.

Fig. 3 is a partial schematic view of the embodiment of the present invention after hiding the driven wheel.

Figure 4 is the eccentric wheel and connecting plate schematic diagram in the embodiment of the invention.

Reference numerals: 1-a side arm; 11-a first half-body; 12-a second half; 13-connecting column; 14-connecting holes; 15-a connector; 2-motor casing; 21-a heat sink; 22-a junction bit; 3-installing a cavity; 31-spring gap; 4-a main shaft; 41-a hub; 42-brake disc; 43-a brake; 5-driven wheel; 6-a transmission device; 61-a driving wheel; 62-a belt; 7-eccentric wheel; 71-mounting holes; 72-a bump; 73-a connecting plate; 74-a chute; 75-reinforcing ribs; 76-a card position; 77-clip groove.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1-2, a single rocker arm bottom fork assembly comprises a side arm 1, the middle of the side arm 1 is arranged in an arc shape, one end of the side arm 1 is formed with a motor housing 2, one side of the motor housing 2 is provided with a connecting position 22 for connecting a frame, a motor assembly is mounted in the motor housing 2 to form a complete motor, the other end of the side arm 1 is provided with a first half body 11 and a second half body 12, one end of the first half body 11 is connected with one end of the second half body 12, the other end of the first half body 11 is formed with an elastic gap 31, the first half body 11 and the second half body 12 are formed into a mounting cavity 3, the first half body 11 and the second half body 12 are provided with a connecting hole 14, a connecting piece 15 is arranged in the connecting hole 14, the size of the elastic gap 31 is adjusted by the connecting piece 15, so as to adjust the size of the mounting cavity 3, the mounting cavity 3 is movably provided, the other end is provided with from driving wheel 5, is provided with a plurality of teeth from driving wheel 5, and the output of motor with pass through transmission 6 from driving wheel 5 and be connected, transmission 6 includes action wheel 61 and follows driving wheel 5, action wheel 61 rotates and sets up in 2 one ends of motor casing, action wheel 61 and follow driving wheel 5 between be provided with belt 62, the motor passes through transmission 6 and drives from driving wheel 5 and rotate to drive wheel hub 41 and rotate.

The bottom fork of this application adopts the bottom fork of single rocking arm, and motor casing 2 adopts integrative design with side arm 1 simultaneously, and such design can save installation space under the prerequisite of the intensity of the bottom fork of the design before guaranteeing to have, on the one hand reduces sheltering from of bottom fork frame to motor casing 2, reinforcing heat dissipation function, protection motor. The one end of side arm 1 is integrative to have set up first halfbody 11 and second halfbody 12, form installation cavity 3 between first halfbody 11 and the second halfbody 12, main shaft 4 is installed in installation cavity 3, integrative design is in order to improve holistic intensity, the design of single rocking arm is easy to assemble and dismantlement tire in addition, the chain stay can not influence the dismantlement of tire, can be convenient maintain and maintain etc. transmission 6 adopts belt 92 transmission still to have the maintenance-free, noiseless, advantages such as long-life.

As shown in fig. 3-4, an eccentric wheel 7 is disposed in the mounting cavity 3, after the eccentric wheel 7 is disposed in the mounting cavity 3, the elastic gap 31 is reduced by a locking connection member 15, so as to achieve the purpose of locking the eccentric wheel 7, prevent the eccentric wheel 7 from moving relatively, ensure driving safety, and simultaneously, the operation is simple, and the use is convenient and fast, a plurality of reinforcing ribs 75 are disposed on the eccentric wheel 7, the reinforcing ribs 75 are used for enhancing the bearing capacity of the eccentric wheel 7, because the eccentric wheel 7 is a component for fixing the spindle 4, which requires a strong bearing capacity, preventing the occurrence of a fracture condition, and preventing the damage to the life safety of a driver, a plurality of protrusions 72 are circumferentially disposed on the outer wall of the left end of the eccentric wheel 7, a mounting hole 71 is disposed at the center of the eccentric wheel 7, the spindle 4 is rotatably disposed in the mounting hole 71, and the protrusions 72 are used for, a specific tool is clamped on the protrusion 72, the eccentric wheel 7 is rotated through the specific tool, the position of the circle center is adjusted, and then the position of the main shaft 4 is adjusted, and the protrusion 72 is arranged to facilitate clamping of the specific tool, so that the eccentric wheel 7 is conveniently rotated.

As shown in fig. 4, the right end of the eccentric wheel 7 is provided with a clamping position 76, the clamping position 76 is movably provided with a connecting plate 73, the upper end of the connecting plate 73 is provided with a brake 43, one end of the connecting plate 73 is provided with a chute 74, the side arm 1 is rotatably provided with a connecting post 13, the cross section of the connecting post 13 is shaped like a plastic track, the upper surface and the lower surface are flat, the left surface and the right surface are in arc-shaped design, the design is mainly used for increasing the contact area with the connecting plate 73, when the eccentric wheel 7 rotates, the connecting plate 73 is driven to displace, in order to balance the angle of the brake 43 on the connecting plate 73, the connecting plate 73 can only move along the sliding groove 74, the connecting column 13 can prevent the connecting plate 73 from rotating, so that a brake system is in error, and the connecting column 13 and the sliding groove 74 have the function of ensuring that the connecting plate 73 is restrained from rotating and not influencing the transverse movement of the connecting plate 73.

As shown in fig. 4, a clamping groove 77 is formed in the clamping position 76 of the eccentric wheel 7, and the clamping groove 77 is mainly used for clamping a clamping piece and is used for limiting the movement of the connecting plate 73, preventing the connecting plate 73 from being separated from the clamping position 76, and ensuring safety.

The main shaft 4 is sleeved with a brake disc 42, and the brake disc 42 is matched with a brake 43 to realize the braking function.

A plurality of radiating grooves 21 are formed in the motor shell 2, and the design of the radiating grooves 21 can guarantee the radiating of the motor, so that the radiating is faster.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a single rocking arm chain stay assembly which characterized in that: the motor assembly comprises a side arm (1), a motor shell (2) used for mounting a motor assembly is formed at one end of the side arm (1), a mounting cavity (3) is formed at the other end of the side arm (1), a main shaft (4) used for connecting a wheel hub (41) is movably arranged in the mounting cavity (3), a driven wheel (5) is arranged at one end of the main shaft (4), and a transmission device (6) is arranged between the motor shell (2) and the driven wheel (5).

2. A single rocker arm bottom fork assembly as set forth in claim 1, wherein: one end of each side arm (1) is provided with a first half body (11) and a second half body (12), an installation cavity (3) is formed between the first half body (11) and the second half body (12), one end of each first half body (11) and one end of each second half body (12) are connected, and the other end of each first half body and the other end of each second half body form an elastic gap (31).

3. A single rocker arm bottom fork assembly as set forth in claim 2 wherein: an eccentric wheel (7) is movably arranged in the mounting cavity (3), a mounting hole (71) is formed in the circle center of the eccentric wheel (7), and the main shaft (4) is movably arranged in the mounting hole (71) in a penetrating mode.

4. A single rocker arm bottom fork assembly as set forth in claim 3, wherein: the eccentric wheel (7) is circumferentially provided with at least one protrusion (72).

5. A single rocker arm bottom fork assembly as set forth in claim 3, wherein: the side arm (1) is movably provided with a connecting column (13), one end of the eccentric wheel (7) is movably provided with a connecting plate (73), and one end of the connecting plate (73) is provided with a sliding groove (74) matched with the connecting column (13).

6. A single rocker arm flat fork assembly as claimed in claim 5, wherein: the main shaft (4) is provided with a brake disc (42), and the connecting plate (73) is provided with a brake (43) matched with the brake disc (42).

7. A single rocker arm bottom fork assembly as set forth in claim 2 wherein: one end of the first half body (11) and one end of the second half body (12) are provided with connecting holes (14), and connecting pieces (15) used for adjusting the size of the elastic gap (31) are arranged in the connecting holes (14).

8. A single rocker arm bottom fork assembly as set forth in claim 1, wherein: the middle part of the side arm (1) is arc-shaped.

9. A single rocker arm bottom fork assembly as set forth in claim 1, wherein: transmission device (6) include action wheel (61) and follow driving wheel (5), and action wheel (61) rotate to be set up in motor casing (2) one end, be provided with belt (62) between action wheel (61) and follow driving wheel (5).

10. A single rocker arm bottom fork assembly as set forth in claim 3, wherein: a plurality of radiating grooves (21) are formed in the motor casing (2), a connecting position (22) used for being connected with a frame is arranged on one side of the motor casing (2), and a plurality of reinforcing ribs (75) are arranged on the eccentric wheel (7).