CN211371186U

CN211371186U - Simple tension wheel

Info

Publication number: CN211371186U
Application number: CN201922116171.1U
Authority: CN
Inventors: 王强; 周勇
Original assignee: Jiangsu Yating Automobile Technology Co ltd
Current assignee: Jiangsu Yating Automobile Technology Co ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-08-28
Anticipated expiration: 2029-11-29

Abstract

Simple and convenient tensioning wheel. The utility model relates to a belt tensioner field. A simple tension pulley which can be used in combination with a generator unidirectional pulley (OAP) or a generator unidirectional decoupling pulley (OAD) is provided. The belt wheel is sleeved on the wheel shaft, and the mounting shaft is arranged in parallel with one side of the wheel shaft and fixedly connected with the wheel shaft through the elastic support arm; the installation axle is seted up the bolt hole in, and fixedly connected with stopper on the side end face of installation axle. The overall structure has the advantages of small volume, small torque, low cost, easy assembly and the like.

Description

Simple tension wheel

Technical Field

The utility model relates to a belt tensioner field.

Background

At present, most of belt tensioning wheels in the prior art are as shown in the utility model patent named as "a symmetrical high-damping belt tensioning wheel" and the publication number is "CN 106545627A" published by the state office in 2017, 3 and 29, or the utility model patent named as "an asymmetrical high-damping belt tensioning wheel" and the publication number is "CN 205278260U" published in 2016, 6 and 1, the main parts of "extension plate" and "spring support sleeve" in the traditional belt tensioning wheel are used, in order to meet the structural strength requirement, the parts can not be practically stamped, but the casting mold needs to be developed independently to process the cast parts, the development cost of the mold is extremely high, the tensioning wheel is large in torque and large in size.

However, in practical use, it is found that, in some cases of use, particularly, the pulley used in combination with the "generator unidirectional pulley (OAP)" or the "generator unidirectional decoupling pulley (OAD)" does not need a large torque, but rather, certain requirements are provided for easy installation and low cost, so that the conventional tension pulley cannot be matched with the pulley.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to above problem, provided a structure exquisiteness, small, the moment of torsion is little, with low costs and easily assembly, "generator one-way belt pulley (OAP)" or "generator one-way decoupling zero belt pulley (OAD)" of can arranging and carry out the simple and convenient formula take-up pulley that uses.

The technical scheme of the utility model is that: the belt wheel is sleeved on the wheel shaft, and the mounting shaft is arranged in parallel with one side of the wheel shaft and fixedly connected with the wheel shaft through the elastic support arm; the installation axle is seted up the bolt hole in, and fixedly connected with stopper on the side end face of installation axle.

The resilient arms are made of a resilient steel strip 60Si2 Mn-GB/T1222.

One end of the elastic support arm and the wheel shaft are integrally formed in a die-casting mode, and the other end of the elastic support arm and the mounting shaft are integrally formed in a die-casting mode.

The side wall of the side of the wheel shaft, which is far away from the elastic support arm, is provided with an accommodating step, and the belt pulley is sleeved on the accommodating step and is in interference fit with the accommodating step; and a riveting blind hole is also formed in the end face of the side, away from the elastic support arm, of the wheel shaft.

The end face of the side, away from the belt pulley, of the wheel shaft is provided with a pre-compression operation convex block, the pre-compression operation convex block is in a regular polygon prism shape, and the end face, away from the wheel shaft, of the pre-compression operation convex block is provided with an auxiliary blind hole.

The utility model discloses only have four parts of belt pulley, shaft, elastic support arm and installation axle, the structure is very retrencied, and no matter processing or assembly are all very convenient, can provide sufficient moment of torsion when collocation "one-way belt pulley of generator (OAP)" or "one-way decoupling zero belt pulley of generator (OAD)" uses to guarantee the belt tensioning. The overall structure has the advantages of small volume, small torque, low cost, easy assembly and the like.

Drawings

FIG. 1 is a schematic structural diagram of the present application,

figure 2 is a top view of figure 1,

figure 3 is a cross-sectional view taken along line B-B of figure 2,

FIG. 4 is a perspective view of the present disclosure;

figure 5 is a schematic view showing a first usage state of the present invention,

FIG. 6 is a second schematic view illustrating a usage state of the present disclosure;

in the figure, 1 is a belt pulley, 2 is an axle, 21 is a riveting blind hole, 22 is a pre-compression operation lug, 3 is an elastic support arm, 4 is a mounting shaft, 41 is a bolt hole, and 42 is a limiting block.

Detailed Description

The utility model is shown in figures 1-6 and comprises a belt pulley 1, a wheel shaft 2, an elastic support arm 3 and an installation shaft 4, wherein the belt pulley 1 is sleeved on the wheel shaft 2, and the installation shaft 4 is arranged in parallel and is fixedly connected with one side of the wheel shaft 2 and the two through the elastic support arm 3; the installation shaft 4 is provided with a bolt hole 41 and a limit block 42 fixedly connected to one side end face of the installation shaft 4. During assembly, the limiting block can be abutted against the generator, the fastening bolt is introduced into the bolt hole, and the fastening bolt is screwed in the threaded blind hole on the surface of the generator; thereafter, the operator may pull the axle to pre-compress, as shown in FIG. 5, and after the belt is deployed, release the axle to allow it to return to its natural position, as shown in FIG. 6; eventually, the pulley will bear against the belt under the influence of the restoring force of the resilient arms, keeping the belt taut.

The resilient arms 3 are made of resilient steel strips 60Si2 Mn-GB/T1222.

One end of the elastic support arm 3 and the wheel shaft 2 are integrally formed in a die-casting mode, and the other end of the elastic support arm and the mounting shaft 4 are integrally formed in a die-casting mode.

The side wall of the side of the wheel shaft 2 far away from the elastic support arm 3 is provided with an accommodating step, and the belt pulley 1 is sleeved on the accommodating step and is in interference fit with the accommodating step; and a riveting blind hole 21 is further formed in the end face of the side, away from the elastic support arm, of the wheel shaft 2. Therefore, the belt pulley is pressed on the accommodating step in an interference fit mode, and then the riveting is carried out, so that the belt pulley can be stably connected to the wheel shaft.

And a pre-compression operation lug 22 is arranged on the end surface of the side, away from the belt pulley 1, of the wheel shaft 2, the pre-compression operation lug is in a regular polygonal column shape, and an auxiliary blind hole is formed in the end surface, away from the wheel shaft, of the pre-compression operation lug. Therefore, the wrench can be sleeved on the pre-compression convex block so as to conveniently and efficiently pre-compress the elastic support arm.

Claims

1. The simple tension pulley is characterized by comprising a belt pulley, a wheel shaft, an elastic support arm and a mounting shaft, wherein the belt pulley is sleeved on the wheel shaft, and the mounting shaft is arranged in parallel to one side of the wheel shaft and is fixedly connected with the wheel shaft through the elastic support arm; the installation axle is seted up the bolt hole in, and fixedly connected with stopper on the side end face of installation axle.

2. A simple tensioner according to claim 1, characterized in that said resilient arms are made of resilient steel strip 60Si2 Mn-GB/T1222.

3. The simple tension pulley according to claim 1, wherein one end of the elastic arm is integrally die-cast with the pulley shaft and the other end is integrally die-cast with the mounting shaft.

4. The simple tension pulley according to claim 1, wherein a side wall of the wheel shaft on the side away from the elastic support arm is provided with an accommodating step, and the belt pulley is sleeved on the accommodating step and is in interference fit with the accommodating step; and a riveting blind hole is also formed in the end face of the side, away from the elastic support arm, of the wheel shaft.

5. The simple tension pulley according to claim 1, wherein the end surface of the pulley shaft away from the pulley has a pre-compression operation protrusion, the pre-compression operation protrusion has a regular polygonal column shape, and the end surface of the pre-compression operation protrusion away from the pulley shaft has an auxiliary blind hole.