CN208397221U

CN208397221U - A kind of herringbone toothed timing

Info

Publication number: CN208397221U
Application number: CN201821017392.2U
Authority: CN
Inventors: 阮益谊
Original assignee: ZHEJIANG ACRON TRANSMISSION SYSTEM CO Ltd
Current assignee: ZHEJIANG ACRON TRANSMISSION SYSTEM CO Ltd
Priority date: 2018-06-29
Filing date: 2018-06-29
Publication date: 2019-01-18
Anticipated expiration: 2028-06-29

Abstract

The utility model discloses a kind of herringbone toothed timing, including annular belt body, and the band tooth circumferentially uniformly distributed positioned at annular belt body, inner wall, two column with tooth symmetrically and to be circumferentially in staggered distribution, each band tooth extends to middle from annular belt body, inner wall outer end, toothed tilt angle a is 30~35 degree, toothed width b is two neighboring 1.15~1.2 times with the spacing c between tooth of same column, and each toothed medial end two neighboring toothed medial end corresponding on another column is in contact.The double helical tooth toothed belt transmission precision of the utility model is high, greatly reduces noise.

Description

A kind of herringbone toothed timing

Technical field

The utility model relates to synchronous belt technical fields, more particularly, to a kind of herringbone toothed timing.

Background technique

Synchronous pulley is industrial common transmission device, in automobile, weaving, food packaging, printing machinery, numerically-controlled machine tool Equal fields are widely applied.Toothed belt transmission is related to belt wheel and synchronous belt, is a kind of engagement type transmission of insertion.However due to Manufacturing issue is installed, synchronous belt can generate axial movement on the gear teeth of belt wheel, and belt wheel needs the movement of rib limits synchronization band； Synchronous belt contacts generation friction with rib, reduce the service life and transmission efficiency of synchronous belt, and also association is certain for friction Noise generates, while synchronous belt may be driven in the axial direction of belt wheel, and transmission accuracy is caused to reduce.

Utility model content

The purpose of the utility model is to overcome above-mentioned the deficiencies in the prior art, provide a kind of herringbone toothed timing, transmission Precision is high, greatly reduces noise.

To achieve the goals above, the utility model adopts the following technical solution:

A kind of herringbone toothed timing, including annular belt body, and the band tooth circumferentially uniformly distributed positioned at annular belt body, inner wall, the band Tooth is two column that are symmetrical and being circumferentially in staggered distribution, and each band tooth extends to middle from annular belt body, inner wall outer end, toothed Tilt angle a is 30~35 degree, and toothed width b is two neighboring 1.15~1.2 times with the spacing c between tooth of same column, often A toothed medial end two neighboring toothed medial end corresponding on another column is in contact.

The toothed quantity of each column is 100.

The toothed section is arc-shaped.

The beneficial effects of the utility model are: high transmission accuracy, greatly reduces noise.

Detailed description of the invention

Fig. 1 is the main view of the utility model；

Fig. 2 is that the utility model radially cuts off and spreads into the partial schematic diagram after a plane out.

In figure: annular belt body, 1, band tooth 2.

Specific embodiment

The utility model is further described with reference to the accompanying drawings and detailed description:

As shown in Figure 1 and Figure 2, a kind of herringbone toothed timing, including annular belt body, 1 and be located at 1 inner wall of annular belt body, it is circumferentially equal The band tooth 2 of cloth, the section with tooth 2 are arc-shaped.

Described with tooth 2 is two column that are symmetrical and being circumferentially in staggered distribution, and the quantity with tooth 2 of each column is 100.

Each band tooth 2 extends to middle from 1 inner wall outer end of annular belt body, and the tilt angle a with tooth 2 is 30~35 Degree, preferably a are 32 degree, and the width b with tooth 2 is two neighboring 1.15~1.2 times with the spacing c between tooth 2 of same column, each band The medial end of the tooth 2 two neighboring medial end with tooth 2 corresponding on another column is in contact.The setting is so that synchronous belt Axial displacement, high transmission accuracy will not be generated after loading, simultaneously because being not provided with rib, greatly reduce noise.

The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model Within the scope of shield.

Claims

1. a kind of herringbone toothed timing including annular belt body, (1) and is located at circumferentially uniformly distributed band tooth (2) of annular belt body, (1) inner wall, It is characterized by: the band tooth (2) is two column that are symmetrical and being circumferentially in staggered distribution, each band tooth (2) is out of annular belt body, (1) Wall outer end extends to middle, and the tilt angle a with tooth (2) is 30~35 degree, and the width b with tooth (2) is that same column is two neighboring 1.15~1.2 times with the spacing c between tooth (2), the medial end corresponding on another column adjacent two of each band tooth (2) The medial end of a band tooth (2) is in contact.

2. a kind of herringbone toothed timing as described in claim 1, it is characterised in that: the quantity with tooth (2) of each column is 100 It is a.

3. a kind of herringbone toothed timing as claimed in claim 1 or 2, it is characterised in that: the section of the band tooth (2) is circular arc Shape.