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A cross-pack assembly structure with uniform shaft head force

An assembly structure and cross-pack technology, which is applied in the direction of couplings, elastic couplings, mechanical equipment, etc., can solve the problems of damage and failure of the cross-pack assembly, achieve assembly difficulty and low transformation cost, and avoid local stress Excessively large, weakening effect of increased amount of line displacement

Active Publication Date: 2018-12-14
马鞍山市华美联轴器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this application did not fundamentally solve the problems of cross shaft fracture, bearing sleeve crushing, and cylindrical roller fragmentation that lead to damage and failure of the cross pack assembly, and more ideal solutions still need to be explored

Method used

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  • A cross-pack assembly structure with uniform shaft head force
  • A cross-pack assembly structure with uniform shaft head force
  • A cross-pack assembly structure with uniform shaft head force

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] see figure 2 , a cross pack assembly structure with a uniform shaft head force in this embodiment, including a cross shaft head 1, a bearing sleeve 2, an outer ring cylindrical roller 31, an inner ring cylindrical roller 7, a cross shaft end face pad 4 and Bearing sleeve end cover 5. A bearing sleeve end cover 5 is respectively arranged on the four shafts of the cross package, and the bearing sleeve end cover 5 is connected with a universal joint yoke 8 through a hexagon socket head cap screw 6 . A plurality of hexagon socket head cap screws 6 are evenly distributed along the circumferential direction of the bearing sleeve end cover 5 . In this embodiment, the hexagon socket head cap screws 6 compress the bearing sleeve end cover 5 to realize sealing of the cross shaft and precise axial positioning. The middle part of the end cover 5 of the bearing sleeve is provided with a cylindrical protrusion, correspondingly, the cross shaft head 1 is provided with a cylindrical ...

Embodiment 2

[0035] see image 3 , the structure of a cross pack assembly with a uniform shaft head force in this embodiment is basically the same as that of embodiment 1, the difference is that: this embodiment is provided with a The cross shaft end face pad 4 and the end face bearing 41, the cross shaft end face pad 4 is made of copper, which is mainly used to adjust and improve the force of the inner ring cylindrical roller 7, and the end face bearing 41 with stronger rigidity is used to adjust and improve the cross shaft The force of the shaft head 1 and the outer ring cylindrical roller 31, the inner ring cylindrical roller 7 is arranged in two rows along the axial direction of the cross shaft head 1, and the outer ring cylindrical roller 31 and the cross shaft head 1 are clamped The angle is α, and according to the specification and structure of the cross shaft, α is taken as 1′.

Embodiment 3

[0037] The structure of a cross pack assembly with uniform shaft head force in this embodiment is basically the same as in embodiment 1, the difference is that in this embodiment, the cross shaft end face pad 4 is made of aluminum alloy, and the inner ring cylindrical roller 7 There are 3 rows along the axial direction of the cross shaft head 1. The angle between the outer ring cylindrical roller 31 and the cross shaft head 1 is α. According to the specification and structure of the cross shaft, α is 9'.

[0038] The cross-pack assembly structure with uniform shaft head force described in embodiments 1 to 3 is simple and reasonable to improve, low in assembly difficulty and low in transformation cost, strong in practicability, and convenient for popularization and application.

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Abstract

The invention discloses a cross universal joint assembly structure making stress on joint heads even, and belongs to the technical field of cross universal joints. The cross universal joint assembly structure comprises the cross universal joint heads, bearing sleeves, cylindrical rollers and bearing sleeve end covers. Four joints of a cross universal joint are each provided with one bearing sleeve end cover, and the bearing sleeve end covers are connected through hexagon socket screws and universal joint jaws. Cylindrical protrusions are arranged in the middles of the bearing sleeve end covers, and cylindrical grooves are correspondingly formed in the cross universal joint heads. The outer-ring cylindrical rollers are arranged between the cross universal joint heads and the bearing sleeves, and the inner-ring cylindrical rollers are arranged at the matching positions of the grooves in the cross universal joint heads and the protrusions on the bearing sleeve end covers. Taper hole design is adopted for the bearing sleeves, and the hole diameter of the ends, close to the cross universal joint heads, of the bearing sleeves is larger than that of the ends, close to the root of the cross universal joint, of the bearing sleeves. By changing the stress state in the cross universal joint, the phenomenon of overlarge contact stress on the joint heads is relieved, crushing and fatigue damage are relieved, and therefore the service life of the cross universal joint is prolonged.

Description

technical field [0001] The invention relates to the structure of the cross-pack assembly of the universal coupling on the mechanical transmission device, more specifically, it relates to a structure of the cross-pack assembly with a uniform shaft head force. The present invention can be used in SWC type, SWZ type, Universal couplings such as SWP type. Background technique [0002] Among the national standard cross universal couplings, the SWC type belongs to the integral fork head type, the SWZ type belongs to the integral bearing seat type, and the SWP type belongs to the split bearing seat type and so on. The above different types of universal couplings have many types of cross pack assembly structures, but they all have in common: the axial bearing hole is cylindrical, and the cross shaft head is cylindrical; (or needle) to match. Such as figure 1 It is a typical cross pack assembly structure. The advantage of this structure is that it is simple to process, but it is f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D3/41
Inventor 程宁峰
Owner 马鞍山市华美联轴器有限公司
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