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Belt tensioning wheel mechanism of automobile engine

A technology for automotive engines and tensioning pulleys, which is applied to belts/chains/gears, mechanical equipment, transmissions, etc., and can solve the problems of insufficient belt tensioning pulley styles, inability to cope with abrupt stresses, and insufficient structure types, etc. , to achieve the effect of rich styles, high overall reliability and few parts

Pending Publication Date: 2021-05-28
SHANGHAI BEIXU AUTOMOBILE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The belt tensioner of the prior art generally adopts a cylindrical central shaft sleeve, which has the disadvantages that it cannot cope well with the emergence of sudden stress during long-term operation, and the bushing is severely worn, which causes the tensioner to break down. Abnormal noise, as well as failures such as stagnation, so it cannot meet people's increasingly higher requirements for engine life
[0003] Also have, the pattern of belt tensioner of prior art is not abundant enough, promptly structure kind is not abundant enough, and people wish to have the belt tensioner of more style, structure to choose from.

Method used

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  • Belt tensioning wheel mechanism of automobile engine
  • Belt tensioning wheel mechanism of automobile engine
  • Belt tensioning wheel mechanism of automobile engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0117]In the present invention, the cone object may also be referred to as a conical object, or a conical alarm. Note: In this patent document, the relevant parts drawings, the graphics are deformed, and the taper in the text is accurate, please read the readers.

[0118]In order to specifically explain the taper or talking value of the present invention, the following is exemplified to thoroughly understand its meaning.

[0119]Figure 16 It is a schematic of a piece of a conical table.Figure 17 YesFigure 16 Stereoscopic illustration.

[0120]inFigure 16 ,Figure 17 The conical table object is 41 mm in a large end of its large end; its small end circular diameter D1 is 32 mm; its height H is 52 mm.

[0121]Figure 16 The conical table object, the taper is calculated as follows.

[0122]Cement = (large end diameter D1-small end diameter D1) ÷ height H

[0123]= (41-32) ÷ 52 = 9 ÷ 52 = 9 / 52

[0124]which is,Figure 16 The conical table object, the taper value is 9 / 52.

Embodiment 2

[0126]Figure 18 YesFigure 16 The conical table object has a schematic diagram of two cone extension lines;Figure 18 Two extension lines intersect the angle A1。

[0127]Embodiment A in Example No. A1If this A is not calculated1What is the specific value of the angle, and it can also be understood and implemented in the present invention; however, in order to provide more understanding and satisfying a wide range of interests, the embodiment is the angle A1How to calculate, as described below.

[0128]CalculateFigure 18 Crossing angle A1, We can use the triangular function method, first calculate the half angle A1The angle value of / 2, for this,Figure 18 Deductive transformationFigure 19 .

[0129]inFigure 19 Medium, half angle A1正 正 正 正 t: TANA1 / 2=4.5 ÷52≈0.086538461, ie the positive cut is approximately equal to 0.086538461, through the online check table, or through the online triangle function online calculator, you can know the half angle A1The angle value of / 2 is: 4 degrees 56 minutes...

Embodiment 3

[0132]Figure 20 It is a schematic diagram of a conical beaten object in this embodiment;Figure 21 YesFigure 20 Stereoscopic illustration.

[0133]inFigure 20 ,Figure 21 The conical table object is 41 mm in a large lateral diameter D2; its small end circular diameter D2 is 33 mm; its height H is 52 mm.

[0134]Figure 20 The conical table object, the taper is calculated as follows.

[0135]Celet = (large end diameter D2-small diameter D2) ÷ height h

[0136]= (41-33) ÷ 52 = 8 ÷ 52 = 8 / 52

[0137]which is,Figure 20 The conical table object, the taper value is 8 / 52.

[0138]Figure 22 YesFigure 20 The conical table object has a schematic diagram of two cone extension lines;Figure 22 Two extension lines intersect the angle A2。a2The angular value calculation method can be used to learn from the second embodiment.

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Abstract

The invention relates to the technical field of automobiles, discloses a belt tensioning wheel mechanism of an automobile engine, and aims to enrich styles and types of belt tensioning wheels. According to the following technical scheme, the mechanism is characterized by comprising a cover plate (6), wherein a central shaft sleeve is a conical central shaft sleeve (2) with a small upper part and a large lower part, a bushing is a taper-pipe-shaped bushing (4) with a small upper part and a large lower part, a center of a hollow cavity of a rocker arm (3) is provided with a conical tubular structure which protrudes upwards and has a small upper part and a large lower part, the conical slope surface of the conical central shaft sleeve (2) and the inner side surface of the taper-pipe-shaped bushing (4) match in surface shape and abut against each other in a friction manner, and the outer side surface of the taper-pipe-shaped bushing (4) and the inner side surface of the conical tubular structure of the hollow cavity of the rocker arm (3) match in surface shape and abut against each other in a friction manner. The mechanism has the beneficial effects that the wear speed and degree of the bushing can be reduced, and the service life is prolonged.

Description

Technical field[0001]The present invention relates to the field of automotive technology, and more particularly to a belt tension wheel mechanism for an automobile engine.Background technique[0002]In recent years, domestic auto production and sales have grown year by year, so that the demand for tensioning wheels in the domestic market has also increased, providing a broad market for tensioning wheels. The prior art belt tensioner generally adopts a cylindrical central shaft, the disadvantage is: in the long run, it is impossible to respond to the occurrence of mutant stress, the bushing wear is serious, resulting in a tensioner Abnormal sound, and faults such as cards, so people cannot meet people 's requirements for engine life.[0003]Also, the style of the prior art belt tensioner is not rich enough, that is, the structure is not rich enough, and people hope to have more patterns, the structure of the belt tensioner for choice.Inventive content[0004]In order to solve the problem o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H7/08F16H7/20F16H55/36F16C33/04F16C33/06
CPCF16C33/04F16C33/06F16H7/0831F16H7/0838F16H7/20F16H55/36
Inventor 查炳南袁境声
Owner SHANGHAI BEIXU AUTOMOBILE TECH CO LTD
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