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Special-shaped unequal-diameter single-groove belt pulley and manufacturing method thereof

A manufacturing method and technology of pulleys, applied in the direction of belts/chains/gears, components with teeth, portable lifting devices, etc., can solve the problems of bulky moment of inertia, low flexibility, waste of materials, etc., and achieve good market application prospects , Improve flexibility and high product quality

Pending Publication Date: 2018-11-30
ZHEJIANG DONGXING AUTO PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As an important mechanical transmission part, the V-groove pulley is widely used in various mechanical transmission equipment such as automobiles, agricultural machinery, and textile machinery. The traditional manufacturing process of the V-groove pulley is made by cutting the casting blank. This production method makes the product bulky and has a large moment of inertia, high energy consumption in starting and braking, and serious material waste in product processing. The spinning process can only produce large-diameter V-shaped grooves and small-diameter V-shaped grooves, and then this kind of pulley can only use one type of belt, and the flexibility of use is low

Method used

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  • Special-shaped unequal-diameter single-groove belt pulley and manufacturing method thereof
  • Special-shaped unequal-diameter single-groove belt pulley and manufacturing method thereof
  • Special-shaped unequal-diameter single-groove belt pulley and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] A special-shaped unequal-diameter single-groove pulley, including a spoke and a rim integrally formed, wherein the spoke includes a planar central spoke portion and a transitional spoke portion, and the transitional spoke portion is located on the outer periphery of the central spoke portion and flares outward Extended, and the center of the central spoke part is provided with a central hole; the rim includes a V-shaped structure of the V-belt drive rim and a planar structure of the flat belt drive rim, the V-belt drive rim is concave toward the center, and the triangle The included angle of the rim of the belt drive is 37°-39°; the outer part of the transition spoke is connected to one end of the rim of the flat belt drive, the other end of the rim of the flat belt drive is connected to the rim of the V-belt drive, and the other end of the rim of the V-belt drive is extended. There is a rim portion, the rim portion is planar, the outer diameter of the rim portion of the...

Embodiment 2

[0037] A method for manufacturing a special-shaped unequal-diameter single-groove belt pulley, comprising the following steps:

[0038] 1) Blanking: Punch the cut steel plate into a circular sheet on a punching machine, see figure 2 .

[0039] 2) Stretching: The circular sheet is stretched through a stretching die to form a barrel-shaped pulley blank. The barrel-shaped pulley blank is composed of a spoke blank and a rim blank. The outer diameter of the rim blank is the same as that of the flat belt drive rim The external diameter of the same size, see image 3 ;Such as Figure 8 As shown, the drawing die includes a die and a punch, the lower end of the punch is connected with the punch fixing plate by bolts, the punch is sleeved with a positioning ring, and one side of the punch fixing plate is provided with an ejector rod.

[0040] 3) Reshaping and trimming: The barrel-shaped pulley blank is shaped through the shaping mold, and the spoke blank is formed into the center sp...

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Abstract

The invention discloses a special-shaped unequal-diameter single-groove belt pulley and a manufacturing method thereof. The special-shaped unequal-diameter single-groove belt pulley comprises a spokeand a rim, wherein the spoke comprises a center spoke part and a transition spoke part; the rim comprises a triangular belt drive rim part and a flat belt drive rim part; the outer part of the transition spoke part is connected with one end of the flat belt drive rim part; the other end of the flat belt drive rim part is connected with the triangular belt drive rim part; the other end of the triangular belt drive rim part is provided with a rim part in an extending way; and the outer diameter size of the flat belt drive rim part is larger than the outer dimeter size of the rim part. Accordingto the special-shaped unequal-diameter single-groove belt pulley and the manufacturing method thereof provided by the invention, a flat pulley and a V-shaped pulley are formed through continuous spinning, so that the processed product is high in quality, light in overall weight, compact in structure, attractive in appearance, improved in use flexibility, and better in market application prospect.

Description

technical field [0001] The invention belongs to the technical field of mechanical transmission devices, and in particular relates to a special-shaped unequal-diameter single-groove pulley and a manufacturing method thereof. Background technique [0002] As an important mechanical transmission part, the V-groove pulley is widely used in various mechanical transmission equipment such as automobiles, agricultural machinery, and textile machinery. The traditional manufacturing process of the V-groove pulley is made by cutting the casting blank. This production method makes the product bulky and has a large moment of inertia, high energy consumption in starting and braking, and serious material waste in product processing. The spinning process can only produce large-diameter V-shaped grooves and small-diameter V-shaped grooves, and then this kind of pulley can only use one type of belt, and the flexibility of use is low. Contents of the invention [0003] Aiming at the problem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H55/36F16H55/40F16H55/48B23P15/00
CPCF16H55/36F16H55/40F16H55/48B23P15/00
Inventor 潘兆星
Owner ZHEJIANG DONGXING AUTO PARTS