CN211731712U

CN211731712U - Adjusting mechanism of driving wheel

Info

Publication number: CN211731712U
Application number: CN202020276176.0U
Authority: CN
Inventors: 陈刚军
Original assignee: Zhejiang Taizhou Julong Technology Co ltd
Current assignee: Zhejiang Taizhou Julong Technology Co ltd
Priority date: 2020-03-07
Filing date: 2020-03-07
Publication date: 2020-10-23
Anticipated expiration: 2030-03-07

Abstract

The utility model provides an adjustment mechanism of drive wheel belongs to motor vehicle technical field. The adjusting device solves the problem that the two ends of the connecting shaft are easily adjusted to be relatively staggered by the adjusting device of the existing motor vehicle. The adjusting mechanism of the driving wheel comprises bottom fork supports, a rear driving wheel is arranged between the two bottom fork supports, a connecting shaft penetrates through the rear driving wheel, adjusting long grooves are symmetrically formed in the bottom fork supports respectively, two ends of the connecting shaft penetrate through the corresponding adjusting long grooves respectively, first adjusting parts are arranged at two ends of the connecting shaft respectively, second adjusting parts are arranged on the two bottom fork supports, and when the first adjusting parts rotate synchronously on the connecting shaft to be adjusted and are matched with the second adjusting parts correspondingly, the two adjusting parts drive the connecting shaft to move in parallel along the adjusting long grooves of the two bottom fork supports. The utility model discloses simple structure, the same adjustment distance of both ends ability synchronous adjustment of connecting axle adjusts convenient to use, can prevent effectively that the relative dislocation is adjusted at the both ends of connecting axle.

Description

Adjusting mechanism of driving wheel

Technical Field

The utility model belongs to the technical field of the motor vehicle, a adjustment mechanism of drive wheel is related to.

Background

The motor of most current motor vehicles is connected through chain drive between the rear drive wheel, but the rear drive wheel is when traveling for a long time, and easy horizontal migration leads to the chain to hang down not hard up, influences the power transmission between motor and the rear drive wheel, to above-mentioned problem, appears the regulation of an electric motor car rear wheel in the existing market, is if chinese patent number is: "201820673014.3" the structure of adjusting of a two-wheeled electric motor car rear wheel, its concrete structure is: the rear wheel flat fork support is fixed on a frame of a two-wheeled electric vehicle, a rear driving wheel is connected with the rear wheel flat fork support through a connecting shaft, an adjusting groove in a strip shape is horizontally formed in the rear wheel flat fork support, a square guide block in sliding connection with the groove wall of the adjusting groove is arranged in the adjusting groove, a strip hole is formed in the groove bottom of the adjusting groove along the length direction of the adjusting groove, the connecting shaft is arranged in the strip hole in a penetrating mode, the end portion of the connecting shaft is fixedly connected onto the square guide block, a strip groove is further formed in the rear wheel flat fork support in linear distribution with the strip hole, a strip channel communicated with the adjusting groove is formed in the groove bottom of the strip groove, an adjusting nut is fixedly arranged at the groove bottom of the strip groove between the strip channel and the adjusting groove, a spiral adjusting bolt is arranged between the adjusting nut and the square guide block, and the head of the adjusting bolt is.

In the structure, the adjusting bolt is in threaded fit with the adjusting nut, so that the square guide block moves back and forth in the adjusting groove along the length direction of the adjusting groove, and the end part of the connecting shaft is fixed on the square guide block, so that the square guide block moves to enable the connecting shaft to move and drive the rear driving wheel to adjust back and forth. In the structure, the two ends of the connecting shaft are adjusted to be linear adjustment, the two ends of the connecting shaft are difficult to control to synchronously adjust the same adjusting distance, when the two ends of the connecting shaft are adjusted to be relatively staggered, namely the two ends of the connecting shaft are staggered in tandem, so that when the rear driving wheel drives, the connecting shaft is subjected to unilateral abrasion and easy to drive and deviate, and the service life is short.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a simple structure, make the both ends of connecting axle can the synchronous adjustment the same adjustment distance's adjustment mechanism of drive wheel.

The purpose of the utility model can be realized by the following technical proposal: an adjusting mechanism of a driving wheel comprises symmetrically arranged bottom fork brackets, a rear driving wheel is arranged between the two bottom fork brackets, a connecting shaft is arranged in the rear driving wheel in a penetrating way, and the rear driving wheel is connected with the bottom fork bracket through the connecting shaft, it is characterized in that the bottom fork bracket is respectively symmetrically provided with an adjusting elongated slot, two ends of the connecting shaft are respectively arranged in the corresponding adjusting elongated slots in a penetrating way, two ends of the connecting shaft are respectively provided with an adjusting piece I, and the two first adjusting pieces are matched with the connecting shaft in a rotating adjustment manner, the two bottom fork brackets are provided with second adjusting pieces, when the two first adjusting pieces are synchronously adjusted in a rotating manner on the connecting shaft and are matched with the corresponding second adjusting pieces in an adjusting manner, and the two adjusting pieces drive the connecting shaft to parallelly displace along the adjusting elongated slots of the two bottom fork supports, and a limiting device for preventing the adjusting piece I from automatically rotating after being rotationally adjusted is arranged between the adjusting piece I and the adjusting piece II.

The adjusting mechanism of the driving wheel is mainly characterized in that two ends of a connecting shaft are respectively provided with a first adjusting part, two bottom fork supports are provided with a second adjusting part, the connecting shaft is enabled to parallelly displace along the adjusting elongated slots of the two bottom fork supports through the rotation adjustment of the first adjusting part on the connecting shaft and the adjustment and matching of the first adjusting part and the second adjusting part, so that the two ends of the connecting shaft can synchronously adjust the same adjusting distance, the adjustment and the use are convenient, and the service life is long; if the two ends of the connecting shaft are adjusted to be relatively dislocated, the connecting shaft is twisted and interfered in the adjusting elongated slot, and the purpose of self-protection of structural assembly is achieved.

In the adjusting mechanism of the driving wheel, the first adjusting part is an involute cam, a connecting hole is formed in the base circle of the involute cam, and the involute cam is movably sleeved on the connecting shaft through the connecting hole. The purpose of the arrangement is to conveniently drive the connecting shaft to parallelly displace along the adjusting elongated slot of the two bottom fork supports through the adjustment and matching of the structural shape of the involute cam and the second adjusting piece during clockwise or anticlockwise rotation adjustment.

In the adjusting mechanism of the driving wheel, the second adjusting part is a cylinder, the cylinder is distributed on the bottom fork support in an axially outward protruding mode, and when the involute cam is assembled and connected with the connecting shaft, the outer wall of the involute cam is abutted to and matched with the outer wall of the cylinder. When the two involute cams rotate synchronously and clockwise on the connecting shaft for adjustment, the adjustment of the involute cams and the cylinder is abutted and matched to drive the connecting shaft to move backwards and parallelly along the adjusting long grooves of the two bottom fork brackets; when the two involute cams rotate on the connecting shaft synchronously and anticlockwise to be adjusted, the adjustment of the involute cams and the cylinder is abutted and matched to drive the connecting shaft to move forwards and parallelly along the adjusting long grooves of the two bottom fork supports.

In the above-mentioned adjustment mechanism of a drive wheel, stop device include on the outer wall of the cam that gradually bursts at the seams along the direction interval distribution that gradually bursts at the seams of the cam that gradually bursts at the seams have an arc notch, the radian of arc notch and the same setting of the circular arc degree of cylinder, when the cam that gradually bursts at the seams on the connecting axle rotation regulation back, and this cylinder axial direction parallel supports and prevents that the cam that gradually bursts at the seams is rotatory for the connecting axle from in leaning on in the arc notch that corresponds. The involute cam is limited to rotate automatically relative to the connecting shaft through the clamping cooperation of the arc-shaped notch and the cylinder, and the involute cam is stable in structure and long in service life.

In the above adjusting mechanism for the driving wheel, the arc transition of the outer wall of the involute cam between two adjacent arc-shaped notches is performed. The purpose of setting up like this is to make things convenient for involute cam rotatory regulation on the connecting axle.

In the above adjusting mechanism for a driving wheel, the outer end face of the involute cam is provided with angle scale marks at intervals along the involute direction of the involute cam. The purpose of setting up like this can effectively master the accuracy of involute cam rotation regulation on the connecting axle, convenient to use.

In the adjusting mechanism for the driving wheel, a plurality of through holes are further distributed on the involute cam at intervals along the involute direction of the involute cam, and the diameter of each through hole is sequentially increased along the involute direction of the involute cam. The purpose of this arrangement is to improve the mechanical strength of the involute cam.

Compared with the prior art, the adjusting mechanism of the driving wheel has the advantages that: structural design is reasonable, simple, and to professional and non-professional people in the accommodation process who uses and maintain, it is comparatively accurate to adjust, and the both ends of connecting axle can the same adjusting distance of synchro-control, adjusts convenient to use, can prevent effectively that the relative dislocation of both ends regulation of connecting axle, stable in structure, long service life.

Drawings

Fig. 1 is a perspective view of the adjusting mechanism of the driving wheel.

Fig. 2 is a partially exploded perspective view of the adjustment mechanism of the present drive wheel.

Fig. 3 is a schematic perspective view of the present adjustment mechanism for the drive wheel.

Fig. 4 is a partially exploded perspective view of the adjustment mechanism of the present drive wheel.

In the figure, 1, a bottom fork bracket; 2. a rear drive wheel; 3. a connecting shaft; 4. adjusting the long groove; 5. an involute cam; 6. a cylinder; 7. an arc-shaped notch; 8. angle scale marks; 9. a through hole.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2, 3 and 4, the adjusting mechanism of the driving wheel mainly comprises symmetrically arranged bottom fork supports 1, a rear driving wheel 2 is arranged between the two bottom fork supports 1, a connecting shaft 3 is arranged in the rear driving wheel 2 in a penetrating way, the rear driving wheel 2 is connected with the bottom fork supports 1 through the connecting shaft 3, adjusting long grooves 4 are respectively and symmetrically arranged on the bottom fork supports 1, the adjusting long grooves 4 are horizontally distributed, two ends of the connecting shaft 3 are respectively arranged in the corresponding adjusting long grooves 4 in a penetrating way, two ends of the connecting shaft 3 are respectively provided with a first adjusting part, the first adjusting parts are in rotating adjusting fit with the connecting shaft 3, a second adjusting part is arranged on the two bottom fork supports 1, the first adjusting parts are synchronously rotated and adjusted on the connecting shaft 3 and matched with the corresponding second adjusting parts, and the two adjusting parts drive the connecting shaft 3 to parallelly displace along the adjusting long grooves 4 of the two bottom fork supports 1, and a limiting device for preventing the first adjusting piece from rotating automatically after being adjusted in a rotating manner is arranged between the first adjusting piece and the second adjusting piece.

During actual manufacturing, the first adjusting piece is an involute cam 5, a connecting hole is formed in the base circle of the involute cam 5, and the involute cam 5 is movably sleeved on the connecting shaft 3 through the connecting hole; the second adjusting part is a cylinder 6, the cylinder 6 is distributed on the bottom fork support 1 in an axially outward protruding mode, and when the involute cam 5 is assembled and connected with the connecting shaft 3, the outer wall of the involute cam 5 is abutted to and matched with the outer wall of the cylinder 6.

In the actual design, the specific implementation mode of the limiting device is as follows: arc-shaped notches 7 are distributed on the outer wall of the involute cam 5 at intervals along the involute direction of the involute cam 5, the radian of each arc-shaped notch 7 is the same as that of the corresponding cylinder 6, and after the involute cam 5 is rotationally adjusted on the connecting shaft 3, the cylinders 6 are axially and parallelly abutted against the corresponding arc-shaped notches 7 to prevent the involute cam 5 from rotating relative to the connecting shaft 3; the arc transition treatment of the outer wall of the involute cam 5 between two adjacent arc notches 7; angle scale marks 8 are distributed on the outer end face of the involute cam 5 at intervals along the involute direction of the involute cam 5.

During actual manufacturing, a plurality of through holes 9 are further distributed on the involute cam 5 at intervals along the involute direction of the involute cam 5, and the diameter of each through hole 9 is sequentially increased along the involute direction of the involute cam 5.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the flat fork carriage 1 is used more herein; a rear driving wheel 2; a connecting shaft 3; the long regulating groove 4; an involute cam 5; a cylindrical body 6; an arc-shaped notch 7; an angle scale mark 8; through hole 9, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The adjusting mechanism of the driving wheel comprises symmetrically arranged bottom fork supports (1), wherein a rear driving wheel (2) is arranged between the two bottom fork supports (1), a connecting shaft (3) penetrates through the rear driving wheel (2), and the rear driving wheel (2) is connected with the bottom fork supports (1) through the connecting shaft (3), and is characterized in that adjusting long grooves (4) are symmetrically arranged on the bottom fork supports (1) respectively, two ends of the connecting shaft (3) penetrate through the corresponding adjusting long grooves (4) respectively, two ends of the connecting shaft (3) are provided with first adjusting parts respectively, the first adjusting parts are matched with the connecting shaft (3) in a rotating adjusting mode, second adjusting parts are arranged on the two bottom fork supports (1), and the first adjusting parts are synchronously adjusted in a rotating mode on the connecting shaft (3) and matched with the corresponding second adjusting parts in an adjusting mode, and drive the connecting shaft (3) to move along the parallel positions of the adjusting long grooves (4) of the two bottom fork supports (1) And a limiting device for preventing the first adjusting piece from rotating automatically after being adjusted in a rotating manner is arranged between the first adjusting piece and the second adjusting piece.

2. The adjusting mechanism for the driving wheel is characterized in that the first adjusting part is an involute cam (5), a connecting hole is formed in a base circle of the involute cam (5), and the involute cam (5) is movably sleeved on the connecting shaft (3) through the connecting hole.

3. The adjusting mechanism for the driving wheel is characterized in that the second adjusting piece is a cylinder (6), the cylinder (6) is distributed on the bottom fork support (1) in an axially outward protruding mode, and when the involute cam (5) is assembled and connected with the connecting shaft (3), the outer wall of the involute cam (5) is abutted and matched with the outer wall of the cylinder (6).

4. The adjusting mechanism for the driving wheel as claimed in claim 3, wherein the limiting device comprises arc notches (7) spaced apart from each other in the involute direction of the involute cam (5) on the outer wall of the involute cam (5), the radian of each arc notch (7) is the same as the arc degree of the cylinder (6), and after the involute cam (5) is rotationally adjusted on the connecting shaft (3), the cylinder (6) is axially parallel to and abutted against the corresponding arc notch (7) to prevent the involute cam (5) from rotating relative to the connecting shaft (3).

5. A drive wheel adjustment mechanism according to claim 4, characterized in that the involute cam (5) between two adjacent arc-shaped notches (7) has an arc transition on the outer wall.

6. A driving wheel adjusting mechanism according to claim 5, wherein the involute cam (5) has angular scale marks (8) on its outer end surface at intervals along the involute direction of the involute cam (5).

7. The adjusting mechanism for the driving wheel as claimed in claim 6, wherein the involute cam (5) is further provided with a plurality of through holes (9) at intervals along the involute direction of the involute cam (5), and the diameter of each through hole (9) is sequentially increased along the involute direction of the involute cam (5).