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Structure for inhibiting slapping noise of gears

A gear and noise technology, applied in the direction of gear transmission, belt/chain/gear, mechanical equipment, etc., can solve the problems of large friction between the sheet gear and the driven gear, affecting the working environment of the transmission, and small thickness of the sheet gear. High friction, simple structure and long service life

Active Publication Date: 2012-03-14
ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the process of transmission (whether it is normal transmission or abnormal transmission), the sheet gear not only always meshes with the driving gear, but also rubs against the driven gear to delay the rotation of the driven gear. Therefore, the sheet gear and the driving gear and There is rigid friction between the driven gears. Due to the small thickness and low mechanical strength of the thin plate gears, the service life is short, and the damage and shedding of the thin plate gears will lead to the damage of the entire transmission gear. This situation has been learned painfully. In addition, the friction between the thin plate gear and the driven gear is relatively large, resulting in a large amount of energy loss and high heat generation, which affects the working environment of the transmission

Method used

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  • Structure for inhibiting slapping noise of gears
  • Structure for inhibiting slapping noise of gears
  • Structure for inhibiting slapping noise of gears

Examples

Experimental program
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Effect test

Embodiment 1

[0026] like figure 1 , figure 2 As shown, the two gears 1 and 2 are in an external meshing state, and a friction wheel is fixedly connected with a screw 5 on the right side of the gear 1 and 2 respectively, and the two friction wheels 3 and 4 are respectively connected by a ring bracket and a ring The rings in the bracket are composed of rings 3b, 4b attached to the outer peripheral surfaces of the corresponding annular brackets 3a, 4a by vulcanization, and the outer peripheral surfaces of the two rings 3b, 4b are squeezed and contacted with each other. During manufacture, the outer diameters of the two ferrules 3b and 4b should be 0.6 mm to 1.2 mm larger than the pitch circle diameters of the corresponding gears 1 and 2 respectively, that is, to ensure that the two ferrules have a certain extrusion area (such as figure 2 Extrusion zone M in the middle), precisely because of this extrusion zone, when the linear speeds of the two gears 1 and 2 are not equal, a friction force...

Embodiment 2

[0029] The difference between this embodiment and the first embodiment is only that the meshing state of the two gears is different. Therefore, in order to ensure that the two ferrules can still be squeezed and contacted, the installation positions of the ferrules are different.

[0030] like image 3 , Figure 4 As shown, the two gears 1 and 2 in this embodiment are in the internal meshing state, and the friction wheels 3 and 4 respectively fixed on the two gears 1 and 2 are also in the form of internal and external installation, and the friction wheel 3 is an external friction wheel. It consists of an annular bracket 3a and a collar 3b sleeved on the inner peripheral surface of the annular bracket 3a; the friction wheel 4 is an inner friction wheel, which consists of an annular bracket 4a and a collar 4b sleeved on the outer peripheral surface of the annular bracket 4a, The inner peripheral surface of the ferrule 3b and the outer peripheral surface of the ferrule 4b are ext...

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Abstract

The invention provides a structure for inhibiting slapping noise of gears, belongs to the technical field of machinery, and solves the problems of large abrasion, short service life, low efficiency during normal transmission of the gears, and the like of the conventional structure for inhibiting the slapping noise of the gears through rigid friction. The structure for inhibiting the slapping noise of the gears is arranged between a gear pair consisting of two gears which are meshed with each other and is characterized in that: the same side face of the two gears which are meshed with each other is respectively and fixedly connected with a friction wheel which is coaxial with each gear; and the two friction wheels are mutually extruded and contacted on the pitch circle common tangent surfaces of the two gears, and the edges of the extrusion surface of the two friction wheels are made of a nonmetallic material. The linear speed difference of the two gears is eliminated through flexible friction between the two friction wheels so as to inhibit the slapping noise of the gears, and the flexible friction has the advantages of small abrasion and low heating value; and the two friction wheels cannot slide during the normal transmission of the gears, so the transmission efficiency of the gears cannot be influenced.

Description

technical field [0001] The invention relates to a gear transmission, strictly speaking, it is a structure for suppressing the rattling noise of gears produced by the gear transmission, and belongs to the field of mechanical technology. Background technique [0002] With the improvement of people's requirements for the comfort of automobiles, the vibration and noise problems of automobiles have been paid more and more attention by manufacturers. The vibration noise of the transmission is one of the important components of the vehicle noise. How to control the noise when the transmission is working is the direction that all transmission manufacturers are working hard to study. The vibration noise generated when the transmission is working is mainly emitted by the gears. When the transmission works normally, only one pair of gears transmits power, and the other gear pairs are called non-loaded gear pairs. One gear in the non-loaded gear pair is not rigidly connected to the sha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H1/06
Inventor 李书福杨健赵福全邓方敏陈勇尹宏声窦红印
Owner ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD