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Belt pulley

A technology of pulleys and hubs, applied in belts/chains/gears, components with teeth, portable lifting devices, etc., can solve problems such as small torque, inconvenient processing, and weak flange connections

Active Publication Date: 2014-08-06
NINGBO WOLF ELECTRO MECHANICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the above technical solution, the bolts are arranged in the circumferential direction of the pulley, that is, the length direction of the bolts is parallel to the direction of the shaft. When this solution is adopted, it is necessary to add a flange to the rotating shaft, which is inconvenient to process, and the flange connection is not firm. Torque smaller

Method used

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  • Belt pulley
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Examples

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Effect test

Embodiment 1

[0037] refer to figure 1 , figure 2 , image 3 , the outer wall of the first annular fastening assembly 2 is a cylindrical surface, the inner wall of the second annular fastening assembly 3 is a cylindrical surface, and the second annular fastening assembly 3 includes a first half ring 301 and a first half ring 301 with opposite ends. The second half-ring 302, a gap 305 is arranged between the two ends of the first half-ring 301 and the second half-ring 302, the gap 305 between the two ends of the first half-ring 301 and the second half-ring 302 and the notch 201 in the same radial direction, both ends of the first half-ring 301 are respectively provided with radially arranged first stepped bolt holes 3011, and both ends of the second half-ring 302 are respectively provided with radially arranged first screw holes 3021 The first stepped bolt hole 3011 and the first screw hole 3021 are set on the coaxial line corresponding to each other, and a first bolt 303 is set in the co...

Embodiment 2

[0039] refer to Figure 4 , Figure 5 , Image 6 , the outer wall of the first annular fastening assembly 2 is a circular table surface, the outer diameter of the first annular fastening assembly 2 gradually increases from the end away from the hub 1 to the end connected to the hub 1, the second annular fastening assembly 3 The inner wall of the inner wall is a circular table surface, and the inner diameter of the second annular fastening component 3 gradually increases from the end far away from the hub 1 to the end close to the hub 1. The hub 1 is axially penetrated and provided with several second screw rods distributed circumferentially around the shaft hole 101. Holes 3022, the second half-ring 302 is axially provided with several second stepped bolt holes 3012 distributed in the circumferential direction, the second stepped bolt holes 3012 and the second screw holes 3022 are arranged on the same axis correspondingly, corresponding A second bolt 304 is disposed in the sec...

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Abstract

The invention discloses a belt pulley which comprises a hub (1) provided with a shaft hole (101), a first annular fastening component (2) and a second annular fastening component (3), wherein the first annular fastening component (2) is arranged surrounding the shaft hole (101) and is fixedly connected with the hub (1), at least one notch (201) penetrating through the side wall of the first annular fastening component (2) in the radial direction and extending from the end face of the first annular fastening component (2) to the end face of the hub (1) is formed in the first annular fastening component (2), and the second annular fastening component (3) is detachably arranged on the periphery of the first annular fastening component (2) in a sleeved mode and enables the notches (201) in the first annular fastening component (2) to be tightened. The belt pulley is convenient to dismount and machine, firm in connection and high in torque.

Description

technical field [0001] The invention relates to a pulley. Background technique [0002] The pulley is the more commonly used transmission device and is usually connected to the drive shaft. The drive shaft needs to closely cooperate with the pulley during the process of driving the pulley to rotate, and when the drive shaft or the pulley needs maintenance, the pulley needs to be separated from the drive shaft. [0003] In order to take into account the functions of tight fit and easy disassembly of the transmission shaft and the pulley, various solutions are provided in the prior art, such as the Chinese patent with the publication number CN2061227U "a mechanical transmission device with a shaft coupling that is easy to install and disassemble". A tapered sheath is sheathed on the top, and at the same time, the shaft hole of the pulley is also a tapered surface. Through the cooperation of the tapered sheath and the tapered surface, the pulley and the shaft can be locked and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H55/36
CPCF16H55/46
Inventor 刘坚
Owner NINGBO WOLF ELECTRO MECHANICAL CO LTD
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