Slewing bearing with adjustable gear meshing center distance and machining method thereof

A technology of slewing bearing and center distance, which is applied in belts/chains/gears, components with teeth, portable lifting devices, etc., to achieve the effect of reducing requirements, reducing production costs, and increasing the adjustment range

Inactive Publication Date: 2010-08-25
马鞍山统力回转支承有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This slewing bearing solves the problem of reuse of the main machine frame with out-of-tolerance installation hole position, and finally achieves the purpose of reducing the processing difficulty of the main machine and improving the working performance and service life of the slewing bearing

Method used

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  • Slewing bearing with adjustable gear meshing center distance and machining method thereof
  • Slewing bearing with adjustable gear meshing center distance and machining method thereof
  • Slewing bearing with adjustable gear meshing center distance and machining method thereof

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Embodiment Construction

[0023] In the gear meshing center distance adjustable slewing bearing of the present invention, the center of the distribution circle of the installation hole of the ring-free support ring in the internal gear type and the external gear type slewing bearing and the center of the entire slewing bearing are changed from the original coaxial design to Eccentric design, the eccentricity is e, this structure is suitable for all toothed slewing bearings.

[0024] 1. Take the excavator slewing bearing as an example to illustrate:

[0025] It can be seen from Fig. 1 and Fig. 2 that the outer ring 3 of the slewing bearing for the excavator is without gear, and the inner ring 6 is with gear. The inner ring 6 is fixed, and the outer ring 3 rotates around the raceway; the chassis part 1 of the excavator is connected to the inner ring 6 of the slewing bearing through the connecting bolt 2, and the upper frame 4 of the excavator is connected to the outer ring 3 of the slewing bearing throug...

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Abstract

The invention discloses a slewing bearing with an adjustable gear meshing center distance and a machining method thereof. The slewing bearing comprises a support ring without a gear ring and a support ring with a gear ring, wherein the two support rings are matched with each other; and the center of a mounting hole of the support ring without the gear ring and the center of the slewing bearing have an eccentric distance (e). The slewing bearing can adjust the center distance between small gears on a main machine and the support ring with the gear ring of the slewing bearing and solves the problem of reutilization of a frame of the main machine with an ultra-poor position degree of the mounting hole, thereby finally achieving the purposes of reducing the machining difficulty of the main machine and improving the working performance and the service life of the slewing bearing.

Description

technical field [0001] The invention relates to a gear meshing center distance adjustable slewing bearing and a processing method thereof. Background technique [0002] When the slewing bearing is installed on the main machine, the mounting holes of the main machine frame and the mounting holes of the slewing bearing are connected with bolts. In order to ensure the meshing and operation of the main engine pinion and the ring gear support ring of the slewing ring, the center distance between the two should be correct, and a certain tooth side clearance value must be guaranteed. Usually, the center distance between the bolts and the mounting holes is adjusted through the gap between them, so as to achieve the purpose of ensuring the backlash value of the gear meshing, but the adjustment amount is extremely limited. In the case of ensuring the correct installation of the main engine frame and the slewing bearing, and retaining as much as possible the adjustment of the gear mes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H55/18
Inventor 侯宁梅帮明许丽华庾鹏毕娟娟
Owner 马鞍山统力回转支承有限公司
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