Backlash-free gear transmission pair

A technology of gear transmission and backlash, applied in belts/chains/gears, components with teeth, portable lifting devices, etc., can solve the problem of gear transmission backlash, complex structure and assembly, and increased gear wear. and other problems, to achieve the effect of simple structure, eliminating or reducing the backlash and backlash, and increasing the degree of coincidence

Inactive Publication Date: 2014-05-07
TIANJIN QIXING PRECISION MACHINERY
View PDF3 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Existing technology In precision gear transmission, in order to achieve anti-backlash transmission or adjust meshing backlash, commonly used technical solutions include: eccentric bushing adjustment center distance method, double-piece thin gear staggered tooth adjustment method, spring force bias method, double The motor-driven double transmission chain anti-backlash method, the above methods are complicated in structure and assembly, high in cost, only suitable

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Backlash-free gear transmission pair

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] figure 1 It is the gear tooth shape structure diagram of the present invention, figure 2 It is a schematic diagram of the gear meshing structure (thread transmission) of the present invention, image 3 It is a schematic diagram of the gear meshing structure of the present invention (the second structure of screw transmission). As shown in the figure, the backlash-free gear transmission pair of the present invention includes a driving gear 1 and a driven gear 2 meshing with it. The driving gear 1 and The driven gear 2 adopts the form of tangential displacement, and the tangential displacement coefficient changes from small to large along the axial direction to form a gear with variable tooth thickness. The teeth of the driving gear 1 and the teeth of the driven gear 2 The tangential variation coefficients of the two tooth surfaces are in the same direction from small to large. As shown in the figure, the tooth thickness gradually becomes thinner along the axial directi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a backlash-free gear transmission pair. A gear adopts gradually-varied tangential displacement, tangential displacement coefficients change in the gear disc axial direction according to a definite law from small to large to enable two tooth faces of gear teeth to form a certain included angle, a driving gear and a driven gear are respectively provided with axial pre-tightening force identical to the gear teeth in the front-thick-to-thin direction, and meshing backlashes can be adjusted by adjusting the axial relative positions of the meshed gears. The driving gear or the driven gear is prevented from retreating by utilizing the axial pre-tightening force, so that reverse axial force is exerted to eliminate return difference in the transmission process and enable the process to be tender, pause is avoided, and the backlash-free gear transmission pair has the advantages of being simple in structure, small in size and the like. The tangential displacement influence on tooth thickness can be avoided by utilizing a radial displacement mode, the gear tooth strength is ensured, increase of the meshing contact ratio is facilitated, the bearing capacity is high, and the backlash-free gear transmission pair is suitable for high-speed input during precise transmission.

Description

technical field [0001] The invention relates to a transmission device, in particular to a transmission device with high precision requirements. Background technique [0002] Gear transmission is used to transmit motion and power between two shafts. Compared with other mechanical transmissions, gears have the advantages of compact structure, stable operation, and low noise, so they are widely used in various machines and instruments. [0003] [0004] With the development of production technology and the demand for high-quality products, especially the development of precision heavy-duty transmission, higher requirements are put forward for the control of transmission accuracy and backlash. [0005] Existing technology In precision gear transmission, in order to achieve anti-backlash transmission or adjust meshing backlash, commonly used technical solutions include: eccentric bushing adjustment center distance method, double-piece thin gear staggered tooth adjustment method,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F16H55/18
CPCF16H55/18
Inventor 李洪建
Owner TIANJIN QIXING PRECISION MACHINERY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap