CN209977196U

CN209977196U - Multifunctional triple chain wheel

Info

Publication number: CN209977196U
Application number: CN201920648567.8U
Authority: CN
Inventors: 于苏东
Original assignee: HANGZHOU JIUZUAN MACHINERY Co Ltd
Current assignee: HANGZHOU JIUZUAN MACHINERY Co Ltd
Priority date: 2019-05-08
Filing date: 2019-05-08
Publication date: 2020-01-21
Anticipated expiration: 2029-05-08

Abstract

The utility model provides a multi-functional trigeminy sprocket, including first sprocket body, supporting axle sleeve, the arc recess, the anti-overloading external member, second sprocket body, third sprocket body, driving lever, buffer pad piece and solid fixed ring, first sprocket body one side fixedly connected with supporting axle sleeve, this supporting axle sleeve hole have seted up the arc recess along the axial equipartition, and sliding connection has the anti-overloading external member in this arc recess. The utility model discloses a setting of arc recess and anti-overload external member, when the moment of torsion was too big, the arc arch changed the position of corresponding arc recess, and first sprocket takes place to rotate for the anti-overload external member, avoids transshipping, and burns out the motor.

Description

Multifunctional triple chain wheel

Technical Field

The utility model belongs to the technical field of the sprocket, especially, relate to a multi-functional trigeminy sprocket.

Background

The chain transmission is a transmission mode for transmitting the motion and power of a driving chain wheel with a special tooth form to a driven chain wheel with a special tooth form through a chain. In general, two chain wheels drive a chain to drive, and the problem that the transmission ratio cannot be changed exists, and if the transmission ratio needs to be changed, the transmission mechanism needs to be removed again for replacement, and the process is complicated. And the chain transmission efficiency is higher, but does not have the overload protection function, burns out the motor easily when the chain takes place the jamming.

Therefore, it is necessary to invent a multifunctional triple sprocket.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a multi-functional trigeminy sprocket to it is fixed to solve current chain drive ratio, and difficult change does not have the problem of anti-overload function moreover. A multifunctional triple sprocket comprises a first sprocket body, a supporting shaft sleeve, an arc-shaped groove, an overload prevention external member, a second sprocket body, a third sprocket body, a shifting lever, a buffer gasket and a fixing ring, wherein the supporting shaft sleeve is fixedly connected to one side of the first sprocket body, the arc-shaped grooves are uniformly distributed in the inner hole of the supporting shaft sleeve along the axial direction, and the overload prevention external member is connected in the arc-shaped grooves in a sliding manner; the second chain wheel body and the third chain wheel body are sequentially sleeved outside the supporting shaft sleeve and detachably connected through a shift lever, and buffer gaskets are arranged between the first chain wheel body, the second chain wheel body and the third chain wheel body; the fixing ring is connected to the outer end of the supporting shaft sleeve; the anti-overload external member comprises an annular shell, limiting holes and arc-shaped protrusions, wherein the limiting holes are formed in the annular shell, and the arc-shaped protrusions are uniformly distributed on the outer edge of the annular shell.

The arc-shaped groove and the arc-shaped bulge are matched and connected together, when the torque is overlarge, the arc-shaped bulge changes the position corresponding to the arc-shaped groove, and the first chain wheel body rotates relative to the overload prevention external member, so that overload is avoided, and the motor is burnt.

The outer diameter sizes of the first sprocket body, the second sprocket body and the third sprocket body are different, multiple transmission ratio selections are achieved, and the application range is wide.

The driving lever adopts the cylinder axle, and is located first sprocket body, in the blind hole of seting up on second sprocket body and the third sprocket body inner wall, and the installation is all convenient with the dismantlement, and is efficient.

The buffer gasket is a rubber gasket and has the functions of absorbing vibration and reducing noise.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses a setting of arc recess and anti-overload external member, when the moment of torsion was too big, the arc arch changed the position of corresponding arc recess, and first sprocket takes place to rotate for the anti-overload external member, avoids transshipping, and burns out the motor.

2. The utility model discloses a setting of first sprocket body, second sprocket body and third sprocket body, three's external diameter size is not of uniform size to have multiple drive ratio and select, accommodation is wide.

3. The utility model discloses a driving lever, buffer pad piece and solid fixed ring's setting, the connection is reliable firm, and the installation is convenient with the dismantlement, has the damping cushioning effect.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the arc-shaped groove of the present invention.

Fig. 3 is a schematic structural diagram of the overload prevention kit according to the present invention.

In the figure:

the anti-overload chain wheel comprises a first chain wheel body 1, a supporting shaft sleeve 2, an arc-shaped groove 3, an anti-overload sleeve 4, an annular shell 41, a limiting hole 42, an arc-shaped bulge 43, a second chain wheel body 5, a third chain wheel body 6, a driving lever 7, a buffer gasket 8 and a fixing ring 9.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

example (b):

as shown in figures 1 to 3

The utility model provides a multifunctional triple sprocket, which comprises a first sprocket body 1, a supporting shaft sleeve 2, an arc-shaped groove 3, an overload prevention external member 4, a second sprocket body 5, a third sprocket body 6, a shift lever 7, a buffer gasket 8 and a fixing ring 9, wherein the supporting shaft sleeve 2 is fixedly connected to one side of the first sprocket body 1, the arc-shaped grooves 3 are uniformly distributed in the inner hole of the supporting shaft sleeve 2 along the axial direction, and the overload prevention external member 4 is slidably connected in the arc-shaped grooves 3; the second sprocket body 5 and the third sprocket body 6 are sequentially sleeved outside the supporting shaft sleeve 2 and detachably connected through a shift lever 7, and a buffer gasket 8 is arranged between the first sprocket body 1, the second sprocket body 5 and the third sprocket body 6; the fixing ring 9 is connected to the outer end of the supporting shaft sleeve 2; prevent transshipping external member 4 includes annular housing 41, spacing hole 42 and arc arch 43, annular housing 41 is inside to be equipped with spacing hole 42, and annular housing 41 outer fringe equipartition is equipped with arc arch 43.

The arc-shaped groove 3 and the arc-shaped protrusion 43 are matched and connected with each other, when the torque is too large, the arc-shaped protrusion 43 changes the position corresponding to the arc-shaped groove 3, the first sprocket body 1 rotates relative to the overload prevention sleeve piece 4, and overload is avoided, so that the motor is burnt.

The outer diameter sizes of the first sprocket body 1, the second sprocket body 5 and the third sprocket body 6 are different, multiple transmission ratio selections are achieved, and the application range is wide.

The driving lever 7 is a cylindrical shaft and is positioned in blind holes formed in the inner walls of the first sprocket body 1, the second sprocket body 5 and the third sprocket body 6, so that the mounting and the dismounting are both convenient and efficient.

The buffer gasket 8 is a rubber gasket and has the functions of absorbing vibration and reducing noise.

Principle of operation

The utility model discloses in, arc recess 3 and anti-overload external member 4's setting, when the moment of torsion was too big, the protruding 43 changes the position that corresponds arc recess 3 of arc, and first sprocket body 1 takes place rotatoryly for anti-overload external member 4, avoids transshipping, and burns out the motor. First sprocket body 1, second sprocket body 5 and third sprocket body 6's setting, the external diameter size of three is not of uniform size to have multiple drive ratio and select, accommodation is wide.

Utilize technical scheme, or technical personnel in the field are in the utility model discloses under technical scheme's the inspiration, design similar technical scheme, and reach above-mentioned technological effect, all fall into the utility model discloses a protection scope.

Claims

1. A multi-functional trigeminy sprocket which characterized in that: the chain wheel comprises a first chain wheel body (1), a supporting shaft sleeve (2), arc-shaped grooves (3), an overload prevention external member (4), a second chain wheel body (5), a third chain wheel body (6), a deflector rod (7), a buffer gasket (8) and a fixing ring (9), wherein the supporting shaft sleeve (2) is fixedly connected to one side of the first chain wheel body (1), the arc-shaped grooves (3) are uniformly distributed in the inner hole of the supporting shaft sleeve (2) along the axial direction, and the overload prevention external member (4) is slidably connected in the arc-shaped grooves (3); the second sprocket body (5) and the third sprocket body (6) are sequentially sleeved outside the supporting shaft sleeve (2) and detachably connected through a shifting rod (7), and a buffer gasket (8) is arranged between the first sprocket body (1), the second sprocket body (5) and the third sprocket body (6); the fixing ring (9) is connected to the outer end of the supporting shaft sleeve (2); prevent transshipping external member (4) including annular casing (41), spacing hole (42) and arc arch (43), annular casing (41) inside is equipped with spacing hole (42), and annular casing (41) outer fringe equipartition is equipped with arc arch (43).

2. The multi-functional triple sprocket as set forth in claim 1, wherein: the arc-shaped groove (3) and the arc-shaped bulge (43) are mutually matched and connected together.

3. The multi-functional triple sprocket as set forth in claim 1, wherein: the first sprocket body (1), the second sprocket body (5) and the third sprocket body (6) are different in outer diameter size.

4. The multi-functional triple sprocket as set forth in claim 1, wherein: the shifting lever (7) is a cylindrical shaft and is positioned in blind holes formed in the inner walls of the first sprocket body (1), the second sprocket body (5) and the third sprocket body (6).

5. The multi-functional triple sprocket as set forth in claim 1, wherein: the buffer gasket (8) is a rubber gasket.