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Lateral sealing composite variable speed drive belt

A technology of variable-speed transmission and seals, applied in the direction of transmission belts, belts/chains/gears, mechanical equipment, etc., can solve the problems of low transmission efficiency, high torque, transmission power loss of transmission belts, etc., to improve fuel efficiency, improve service life, The effect of reducing power loss

Inactive Publication Date: 2012-10-03
ZHEJIANG SANXING RUBBER BELT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the transmission belts in the continuously variable transmission (CVT) of various vehicles on the market mostly use rubber transmission belts. With the development of modern vehicle CVTs, the requirements for transmission belts are getting higher and higher. Ordinary rubber transmission belts have long been It cannot meet the needs of the market, and its specific performance is: 1. Insufficient transverse rigidity: when the rubber speed change belt is in a state of tension, the middle part of the transmission belt will be in a concave and deformed state, and the transmission effect and service life of the transmission belt will be greatly reduced. Seriously affects the use effect of the speed change device; 2. High calorific value: When the transmission belt is driving, the friction, twist and deformation of the belt body and the teeth generate very high heat, and the space where the speed change device is located is relatively narrow. The heat is not easily dissipated; 3. The torque that can be effectively transmitted is low: due to the lack of transverse rigidity, the transmission belt cannot bear a large torque, so it cannot be applied to vehicles with large displacement; 4. The transmission efficiency is low : When the transmission belt is driven on the pulley, the bending, compression and friction caused by wedge in and wedge out cause the transmission power loss of the transmission belt
The above various reasons have hindered the development of rubber transmission belts in modern vehicle CVTs, so it is necessary to improve them

Method used

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  • Lateral sealing composite variable speed drive belt
  • Lateral sealing composite variable speed drive belt
  • Lateral sealing composite variable speed drive belt

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Example 1, see Figure 1 to Figure 6 Shown: a laterally sealed composite speed change transmission belt, including a belt body 10 with teeth 11 , a transverse reinforcing member 20 and a lateral sealing member 30 . The front view of the transverse reinforcement 20 is fan-shaped, and its included angle ranges from 20° to 60°. In common cases, we choose 26°; the side view of the transverse reinforcement 20 is fan-shaped, and its included angle ranges from 3° to 12°, in common cases we choose 3° as the best. The angle of the transverse reinforcement 20 is determined according to the tooth shape of the belt teeth 11 on the belt body 10 , and the above-mentioned included angle is selected as a common belt tooth shape. The top of the transverse reinforcement 20 is in the shape of an arc, which can effectively enhance the transverse rigidity of the transverse reinforcement 20. The chord height of the arch is generally between 0.5 and 3 mm, and 1.5 mm is preferred in common ca...

Embodiment 2

[0026] Example 2, see Figure 7 and Figure 8 As shown: the basic structure and principle of embodiment 2 are the same as that of embodiment 1, the difference is that the above-mentioned snap-in mechanism is: a snap-in block 222 is set on the sealing opening 22 of the transverse reinforcement 20, and in the lateral direction The positioning opening 311 is set on the sealing member 30 to achieve the purpose of positioning; then the above-mentioned joint mechanism is as follows: set the plug-in block 241 on the transverse reinforcement 20, set the receiving hole 321 on the lateral sealing member 30, and then use ultrasonic welding to To achieve the purpose of joining and fixing.

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Abstract

The invention discloses a lateral sealing composite variable speed drive belt, which comprises a belt body provided with belt teeth, and transverse reinforcements and lateral sealing parts made by any one of metal, resin or plastic, wherein the transverse reinforcements are uniformly distributed on the belt body, belt teeth sockets matched with the shape of the belt teeth are arranged in the transverse reinforcements, and sealing ports matched with the lateral sealing parts are arranged on the lateral surfaces of the transverse reinforcements; the belt teeth are arranged in the belt teeth sockets, and the lateral sealing parts are matched with the sealing ports. The lateral sealing composite variable speed drive belt, provided by the invention, has the following advantages that transverse clamping forces of belt pulleys on the both sides can be directly borne by the transverse reinforcements and the lateral sealing parts, and the sunken phenomenon of the belt body is effectively avoided, so that the lateral sealing composite variable speed drive belt has strong transverse rigidity, low heating amount, high transmission efficiency and capability of effectively realize larger torque transfer.

Description

technical field [0001] The invention belongs to the technical field of mechanical transmission belts, and in particular relates to a side-sealed composite variable-speed transmission belt. Background technique [0002] At present, most of the variable speed transmission belts in the continuously variable transmission (CVT) on various vehicles on the market use rubber variable speed transmission belts. With the development of modern vehicle CVTs, the requirements for transmission belts are getting higher and higher. It cannot meet the needs of the market, and its specific performance is as follows: 1. Insufficient transverse rigidity: when the rubber transmission belt is in a tensioned state, the middle part of the transmission belt will be in a concave and deformed state, and the transmission effect and service life of the transmission belt will be greatly reduced. Seriously affects the use effect of the speed change device; 2. High calorific value: When the transmission bel...

Claims

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Application Information

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IPC IPC(8): F16G1/08F16G1/22
Inventor 章金华陈孝斌孙海峰
Owner ZHEJIANG SANXING RUBBER BELT
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