CN213711770U

CN213711770U - Belt tensioner

Info

Publication number: CN213711770U
Application number: CN202022594470.9U
Authority: CN
Inventors: 梁红邦; 袁铭泽; 陈宜
Original assignee: Ningbo Auto Parts Co ltd
Current assignee: Ningbo Auto Parts Co ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-07-16
Anticipated expiration: 2030-11-11

Abstract

The utility model discloses a belt tensioning wheel, it includes outer lane, inner circle, steel ball, holder, mount, and the mount side is bent, still contains the sensor that is used for detecting the belt wearing and tearing condition on the mount, and the belt is located on the outer lane, and outer lane both sides face is sunken, and the mount passes through the bolt fastening with the inner circle in sunken. The belt wear detection device has the advantages that the sensor is arranged on the fixing frame, the sensor is used for measuring the distance from the belt to the fixing frame to detect the belt wear condition so as to replace the belt which is seriously worn or broken in time, the two side surfaces of the tensioning wheel are sunken, and the fixing frame is fixed with the tensioning wheel in the sunken part, so that the material is saved, and the volume is reduced; the gap between the fixing frame and the tensioning wheel is small, and the belt passes through the gap, so that the effects of smoothing and finishing can be achieved, and the belt is convenient to mount and use; only the bolt is used for fixing, and the replacement is convenient; the outer ring and the inner ring are sleeved, so that the overall structure is compact in connection; the sealing element is used for preventing grease leakage, the dustproof sealing effect is good, and the service life of the device is prolonged.

Description

Belt tensioner

Technical Field

The utility model relates to the field of automotive technology, especially a belt take-up pulley.

Background

The belt tensioning wheel is a belt tensioning device for an automobile transmission system and is widely applied by people. In the actual use process, it is mainly used for keeping suitable belt tension, makes the belt operation more steady, reduces the noise to can prevent that the belt from skidding. However, the belt tensioning wheel on the existing market still has the problem that the belt wearing and tearing condition can not be detected, and when the belt breaks or wears and teares comparatively seriously, the user can not discover in time and change, and great potential safety hazard exists.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can detect belt take-up pulley of belt wearing and tearing condition in order to solve the not enough of above-mentioned technique.

In order to achieve the purpose, the utility model provides a belt tensioning wheel, it includes outer lane, inner circle, steel ball, holder, mount, the mount side is bent, still contains the sensor that is used for detecting the belt wearing and tearing condition on the mount, and the outer lane is located on the outer lane, and outer lane both sides face is sunken, and the mount passes through the bolt fastening with the inner circle in sunken.

In order to support the belt tensioning wheel and reduce the friction coefficient in the movement process of the belt tensioning wheel, a bearing is further arranged on the fixing frame.

In order to reduce friction and resistance between the outer ring and the inner ring in the rotation process and keep the connection between the outer ring and the inner ring compact, the outer ring is sleeved with the inner ring through a steel ball and a retainer.

In order to achieve the effects of sealing and preventing dust, keeping the outer ring and the inner ring in lubrication during relative movement and preventing grease leakage, a sealing element is arranged between the outer ring and the inner ring, and grease is also arranged between the sealing element and the steel ball.

The utility model provides a belt tensioning pulley, its advantage is equipped with the sensor on the mount, measures the distance of belt to the mount through the sensor, detects the belt wearing and tearing condition to in time change the belt that the wearing and tearing are serious or cracked, the take-up pulley both sides face is sunken, the mount is fixed with the take-up pulley in sunken, has saved the material, has reduced the volume; the gap between the fixing frame and the tensioning wheel is small, and the belt passes through the gap, so that the effects of smoothing and finishing can be achieved, and the belt is convenient to mount and use; only the bolt is used for fixing, and the replacement is convenient; the outer ring and the inner ring are sleeved, so that the overall structure is compact in connection; the sealing element is used for preventing grease leakage, the dustproof sealing effect is good, and the service life of the device is prolonged.

Drawings

Fig. 1 is a top view of the present invention;

FIG. 2 is a cross-sectional view taken along the line X-X of FIG. 1;

FIG. 3 is an enlarged partial view of portion A of FIG. 2;

in the figure: the device comprises an outer ring 1, an inner ring 2, a steel ball 3, a retainer 4, a fixing frame 5, a sensor 6, a bearing 7, a sealing element 8, grease 9, a concave part 10 on the side surface of the outer ring and a belt 11.

Detailed Description

In order to clearly understand the technical solution of the present invention, the present invention is further illustrated by the following embodiments in combination with the accompanying drawings.

Example 1:

the belt tensioning wheel provided by the embodiment comprises an outer ring 1, an inner ring 2, a steel ball 3, a retainer 4 and a fixing frame 5, wherein the side surface of the fixing frame 5 is bent, the fixing frame 5 further comprises a sensor 6 for detecting the abrasion condition of a belt 11, the belt 11 is arranged on the outer ring 1, the two side surfaces of the outer ring 1 are sunken 10, and the fixing frame 5 is fixed with the inner ring 2 in the sunken 10 through bolts.

Through the design, in the in-service use process, interconnect cooperation between each subassembly adopts the infrared sensor 6 of fixing on mount 5, detects the distance between belt 11 on the outer lane 1 to mount 5 through the transmission infrared radiation, and when finding the distance too big, when surpassing the normal value, it is serious to demonstrate that belt 11 wearing and tearing are serious promptly, needs the user in time to change. The two side surfaces of the outer ring 1 are provided with the depressions 10, and the fixing frame 5 is fixed with the outer ring 1 in the depressions 10, so that the material is saved, and the volume is reduced; the gap between the fixing frame 5 and the inner ring 2 is small, and the belt 11 passes through the gap, so that the effects of smoothing and arranging can be achieved, and the belt 11 is convenient to install and use; the bolt is used for fixing, so that the replacement is convenient.

Example 2:

in addition to the features of embodiment 1, in order to support the belt tensioner and reduce the friction coefficient during the movement of the belt tensioner according to this embodiment, as shown in fig. 2, a bearing 7 is further disposed on the fixing frame 5.

Through the design, in the actual use process, the bearing 7 is arranged on the fixing frame 5 to play a supporting role, the friction coefficient of the belt tensioning wheel in the movement process is reduced, the rotation precision of the belt tensioning wheel is ensured, the wear resistance of the device is enhanced through the installation of the bearing 7, and the service life of the device is prolonged.

Example 3:

in addition to the features described in embodiment 1, in the belt tensioner according to the present embodiment, in order to make the connection between the outer ring 1 and the inner ring 2 compact, as shown in fig. 3, the outer ring 1 is fitted to the inner ring 2 through the steel balls 3 and the holder 4.

Through the design, in the actual use process, the outer ring 1 is sleeved with the inner ring 2 through the steel ball 3 and the retainer 4, so that the device is compact in connection and mutually and closely matched.

Example 4:

in addition to the features of embodiment 2, in order to prevent dust and grease leakage, a belt tensioner according to the present embodiment is provided with a seal 8 between the outer ring 1 and the inner ring 2, and grease 9 between the seal 8 and the steel balls 3, as shown in fig. 3.

Through the design, in the actual use process, the sealing piece 8 is positioned between the outer ring 1 and the inner ring 2, grease 9 for lubrication is arranged between the sealing piece 8 and the steel ball 3, the grease 9 is prevented from leaking through the sealing piece 8 in the use process, and meanwhile, the dustproof sealing effect is achieved.

Claims

1. The utility model provides a belt tensioning wheel, it includes outer lane (1), inner circle (2), steel ball (3), holder (4), mount (5), characterized by mount (5) side is bent, still contains sensor (6) that are used for detecting belt (11) wearing and tearing condition on mount (5), and belt (11) are located on outer lane (1), and outer lane (1) both sides face is sunken (10), and mount (5) pass through the bolt fastening with inner circle (2) in sunken (10).

2. A belt tensioner according to claim 1, characterized in that said holder (5) is further provided with a bearing (7).

3. A belt tensioner according to claim 1, characterized in that said outer ring (1) is fitted to said inner ring (2) by means of steel balls (3) and a cage (4).

4. A belt tensioner according to claim 1 or 2, characterized in that a seal (8) is provided between said outer ring (1) and said inner ring (2), and that a grease (9) is provided between said seal (8) and said steel ball (3).