Design method of V-shaped transmission belt and belt wheel

A design method and transmission belt technology, applied to V-shaped belts, transmission devices, components with teeth, etc., can solve problems such as tooth gnawing, wrong design principles, and short belt life, and achieve ideal results and improve use. The effect of longevity

Inactive Publication Date: 2011-11-02
汪燕超
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the V-belt and the small pulley are in a synchronous belt meshing relationship, the sliding problem between them is overcome, but the problem of "gnawing teeth" still exists
In particular, this patent violates the basic premise of belt design in the design of the belt, that is to say, the torsion bearing body of the belt should be the wire rope or other strength layer of the belt instead of the rubber layer of the belt. Therefore, the gnawing of the patent The tooth problem is that the design principle is wrong, so it is impossible to solve the "teeth gnawing" problem. The "teeth gnawing" situation is very serious, the life of the belt is very short, and normal production cannot be done at all.

Method used

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  • Design method of V-shaped transmission belt and belt wheel
  • Design method of V-shaped transmission belt and belt wheel
  • Design method of V-shaped transmission belt and belt wheel

Examples

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Comparison scheme
Effect test

Embodiment 1

[0035] The design method of the power transmission belt of embodiment 1 ￠ 250cm specification and pulley, uses CAD software to carry out on the computer.

[0036] 1) According to the parameters required by the 250cm specification, and according to the principle of meshing transmission, first design a five-row V-shaped transmission belt 2 with concave-convex teeth on the inner diameter surface as circular arc teeth, as shown in Figure 3. Its V-shaped angle is 38 degrees, and its arc tooth profile curve is represented by thin solid line 2-1;

[0037] 2) According to the principle of meshing transmission, arc teeth meshing with the concave and convex teeth 2-1 of the transmission belt 2 are designed at the bottom of the five-row pulley 1 with V-shaped wheel grooves. -1 means; that is, the dotted line 1-1' coincides with the thin solid line 2-1;

[0038] 3) see figure 1 , mesh the transmission belt 2 with the pulley 1 in the figure according to the working state, see figure 2 ...

Embodiment 2

[0040] Embodiment 2 The design method of the driving belt and pulley of ￠ 250cm specification, uses CAD software to carry out on the computer.

[0041] Steps 1), 2), and 3) are the same as the above example, seefigure 1 ,image 3.

[0042] 4) Reduce the circular arc convex teeth of the pulley 1 radially to low circular arc convex teeth that do not interfere with the concave and convex teeth of the transmission belt (the tooth profile curves are represented by thin solid lines 1-4, see figure 2 ), and used for the circular arc convex tooth design of the full pulley, and the rest remains unchanged, so that the concave and convex teeth of the pulley are - arc concave teeth - short arc convex teeth - arc concave teeth - short arc convex teeth - head and tail connected, evenly distributed. This promptly obtains the design product of another driving belt and pulley of ￠ 250cm specification.

Embodiment 3

[0043] Embodiment 3 The design method of the long concave-tooth transmission belt and pulley of ￠280mm specification is carried out using CAD software on a computer.

[0044] 1) According to the parameters required by the 280cm specification, and according to the principle of meshing transmission, first design a five-row V-shaped transmission belt 2 with concave and convex teeth on the inner diameter surface as circular arc teeth. The concave and convex teeth are continuously and evenly distributed, see Figure 4 ;The V-shaped angle is 38 degrees;

[0045] 2) According to the principle of meshing transmission, arc concave-convex teeth meshing with the concave-convex teeth 2-1 of the transmission belt 2 are designed on the groove bottom of the five-row pulley 1 with V-shaped grooves. The concave-convex teeth are continuously and evenly distributed, see Figure 4 .

[0046] 3) see Figure 4 , mesh the transmission belt 2 with the pulley 1 according to the working state on the ...

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Abstract

The invention relates to a design method of a V-shaped transmission belt and a belt wheel. The method solves the technical problems that the V-shaped transmission belt and the belt wheel primarily transmit usually by the friction of the V-shaped surface and are aided with mesh transmission. The method comprises the following steps: (1) the groove bottom of the belt wheel (1) provided with a V-shaped wheel groove is provided with concave-convex teeth; (2) the inner diameter surface of the V-shaped transmission belt (2) is provided with concave-convex teeth meshing with the belt wheel (1); (3) when the transmission belt (2) meshes with the belt wheel (1) in the picture according to the operation state, the interference part of the concave-convex teeth of the transmission belt and the concave-convex teeth of the belt wheel can appear at the turning part from the cornerite part of the transmission belt to the flat and straight part of the transmission belt; (4) the convex teeth interference problem is solved by using narrowing teeth, radially reducing teeth or canceling teeth.

Description

technical field [0001] The invention relates to a belt and a wheel for transmission, in particular to a design method of a V-shaped transmission belt and a pulley. Background technique [0002] In the prior art, the V-shaped transmission belt and the pulley are completely driven by V surface friction. When the small pulley is the driving pulley and the large pulley is the driven pulley, in order to reduce the speed, the diameter ratio of the large and small pulleys is quite large, and the wrap angle of the large pulley is much larger than that of the small pulley, resulting in Slipping is common, especially in rainy and snowy weather. For example, pumping units in oil fields, slipping not only causes belt wear to increase, but also causes intermittent production operations and long-term idling, greatly reducing production efficiency or even stopping production. [0003] Chinese patent publication CN2469244 discloses a "combined circular arc toothed V-belt". Its belt body i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H55/36F16G5/20G06F17/50
CPCF16H55/171F16H7/023F16H55/08F16G5/20
Inventor 汪金芳
Owner 汪燕超
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