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Design method for quasi dual-lead conical worms and worm gears

A design method, the technology of cone worm, applied in the direction of mechanical equipment, belt/chain/gear, hoisting device, etc., can solve problems such as complex technical principles

Inactive Publication Date: 2012-11-28
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the technical principle for describing this transmission mode is usually very complicated. It is generally believed that the bevel worm in the bevel worm drive pair is a variable lead helical surface, and the pitch surface of the worm gear is a single-blade hyperboloid.

Method used

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  • Design method for quasi dual-lead conical worms and worm gears
  • Design method for quasi dual-lead conical worms and worm gears
  • Design method for quasi dual-lead conical worms and worm gears

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0386] 1. Known parameters: number of worm gear teeth z=70, worm gear modulus m=2.823922172mm;

[0387] Quasi-double-lead cone worm: Quasi-double-lead cone-worm head number=1, quasi-double-lead cone-worm modulus m=2.823922172mm, quasi-double-lead cone-worm external meshing side shaft section tooth profile angle Tooth profile angle of quasi-double-lead tapered worm internal meshing side shaft section The outer diameter of the large end of the quasi-double-lead tapered worm d d =51mm;

[0388] Quasi-double lead bevel worm gear pair: axis stagger angle ψ=90°, number of meshing teeth k=7.

[0389] 2. The steps of the design method of quasi-double-lead conical worm gear pair are as follows:

[0390] (1) Design the natural tooth profile angle α of the quasi-double-lead conical worm:

[0391] in accordance with It is calculated that α=52.643221608364868°;

[0392] (2) Design the approximate tooth profile angle β in the Q-Q section of the outer meshing surface of the quasi-do...

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Abstract

The invention discloses a design method for quasi dual-lead conical worms and worm gears. The method comprises the steps as follows: 1. designing natural tooth profile angle alpha for a quasi dual-lead conical worm; 2. designing an approximate tooth profile angle betab1 in an outer engaging surface section Q-Q and an approximate tooth profile angle betab1' in an inner engaging surface section Q'-Q'; 3. designing a taper angle theta for the quasi dual-lead conical worm; 4. designing the lead of the quasi dual-lead conical worm; 5. designing the installation center distance from the quasi dual-lead conical worm to the worm gear; 6. designing the inner and outer engaging parameters of the quasi dual-lead conical worm; 7. testing and verifying the transmission ratio and the lead of the quasi dual-lead conical worm; 8. designing the tooth depth of the quasi dual-lead conical worm; 9. designing the threaded part of the quasi dual-lead conical worm; 10. designing the radial parameter of the quasi dual-lead conical worm; 11. designing the tooth thickness of the quasi dual-lead conical worm; 12. designing the installation offset distance of the quasi dual-lead conical worm; 13. designing the installation height of the quasi dual-lead conical worm; 14. designing the geometrical parameters of the worm gear; 15. analyzing errors; and 16. carrying out accurate design.

Description

technical field [0001] The invention relates to a design method of a transmission pair in the technical field of mechanical transmission, more precisely, the invention relates to a design method of a quasi-double lead bevel worm gear. Background technique [0002] The quasi-double-lead conical worm transmission is a worm transmission method with high efficiency, strong load capacity and large transmission ratio. The material of the worm gear can be replaced by steel instead of non-ferrous metal copper. However, the technical principle for describing this transmission mode is usually very complicated. It is generally believed that the bevel worm in the bevel worm drive pair is a variable lead helicoid, and the pitch surface of the worm gear is a single-blade hyperboloid. The design of the transmission pair is very difficult, and the cutting process of the worm gear tooth surface generally requires special tools. Contents of the invention [0003] The technical problem to b...

Claims

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Application Information

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IPC IPC(8): F16H55/22F16H55/08
Inventor 张学成田海龙
Owner JILIN UNIV
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