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Eccentric roller assembly supporting rotation structure and adjusting method thereof

A technology of eccentric rollers and supporting rotation, which is applied in the field of machinery, and can solve problems such as difficult processing, difficulty in designing and manufacturing larger rotating structures, and high prices.

Active Publication Date: 2021-09-14
AVIC BEIJING CHANGCHENG AVIATION MEASUREMENT & CONTROL TECH INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of large bearing is extremely difficult to process, the accuracy is difficult to guarantee, and the price is expensive. Moreover, with the advancement of industry, various industries have put forward greater demands on the diameter of the rotating parts. Difficult to achieve when designing and manufacturing

Method used

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  • Eccentric roller assembly supporting rotation structure and adjusting method thereof
  • Eccentric roller assembly supporting rotation structure and adjusting method thereof
  • Eccentric roller assembly supporting rotation structure and adjusting method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030] In the field of wind power generation, in order to increase the power of wind power generation and increase the power generation, the size of the internal structure of the fan is also increasing, and the size and load of the bearing are also gradually increasing, requiring high positional accuracy. This places very high technical requirements on the bearings. The general use range of extra large slewing bearings is about 1000mm to 3500mm, while the bearings for wind power generation greatly exceed this size. The eccentric roller assembly can meet the fan's requirements on the structure size, load and precision of the slewing bearing.

[0031] Such as Figure 4 According to the embodiment of the present invention, the supporting slewing structure of the eccentric roller assembly includes: a mounting frame 12 and a plurality of eccentric roller assemblies 15, and the plurality of eccentric roller assemblies 15 are fixed on the mounting frame 12 through eccentric shafts a...

Embodiment 2

[0036]For example, with the continuous development of the hoisting machinery industry at home and abroad, the upper and lower double-layer rotary trolley structure cranes have become an inevitable trend in the development of crane manufacturing. For example, the rotary working platform with lifting structure for dredgers and dredgers is an example. The maximum diameter of the workpiece is 8440mm. It is a large-scale rotary structure and can be supported by multiple eccentric wheel assemblies and mounting frames.

[0037] Design the support frame and eccentric wheel assembly according to the workpiece. When installing, first install the eccentric wheel assembly as follows: use the bearing 8 to support the roller 9 on the eccentric shaft 10, and then adjust the clearance of the bearing 8 through the shaft washer 5 and the hole retaining ring 6. Finally, press the bearing outer gland 2 and the bearing inner gland 3 to complete the assembly of each eccentric wheel assembly, such as...

Embodiment 3

[0040] On the basis of Embodiment 1, in order to meet the requirement of large load, it can be satisfied by adjusting the number and size of the eccentric wheel assemblies or adopting the method of multi-row parallel support. Such as Image 6 with Figure 7 As shown, wherein, the bearing inner retaining ring 16 and the bearing outer retaining ring 17 are arranged between the two bearings, and the roller 9 is provided with two parallel trapezoidal grooves, and correspondingly, the rotary member is provided with the two parallel trapezoidal grooves. The trapezoidal bosses corresponding to the trapezoidal grooves can complete the support of the revolving parts through the cooperation of double rows of parallel trapezoidal bosses and double rows of parallel trapezoidal grooves, thus meeting the requirements of large loads. Correspondingly, for better support, it can also be The shape of the boss and the groove can also be adaptively changed by adopting a multi-row parallel suppor...

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Abstract

The invention belongs to the technical field of machinery, and relates to an eccentric roller assembly supporting rotation structure and an adjusting method thereof. The structure comprises a mounting frame (12) and a plurality of eccentric roller assemblies (15), wherein the plurality of eccentric roller assemblies (15) are fixed on the mounting frame (12) through eccentric shafts and are uniformly arranged on a certain circumference of the mounting frame (12). According to the eccentric roller assembly supporting rotation structure, rotation supporting is completed through the multiple eccentric roller assemblies, so that the diameter of a rotating body capable of being supported by the eccentric wheel assemblies and the mounting frame is far greater than that of a rotating body capable of being supported by an integrated bearing, and limitation on the diameter size of a rotating part during design is relieved.

Description

technical field [0001] The invention belongs to the technical field of machinery, and relates to an eccentric roller assembly supporting rotary structure and an adjusting method thereof. Background technique [0002] In terms of supporting the rotation of rotating parts, bearings have been widely used in large-scale rotating devices such as lifting, excavation, construction, ports, ships, and high-precision radar and missile launches. At the same time, we can also design, develop and produce various special structure slewing ring bearings according to the specific requirements of users. [0003] At present, the largest integral bearing diameter that can be manufactured is 9.5m, and the split bearing is 12.4m. This kind of large bearing is extremely difficult to process, the accuracy is difficult to guarantee, and the price is expensive. Moreover, with the advancement of industry, various industries have put forward greater requirements for the diameter of the rotating parts...

Claims

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Application Information

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IPC IPC(8): F16C13/02G01B5/00
CPCF16C13/022G01B5/0004
Inventor 董笑言马雅琼陈燕燕赵坤靳庆华高晓鲲
Owner AVIC BEIJING CHANGCHENG AVIATION MEASUREMENT & CONTROL TECH INST