Supercharge Your Innovation With Domain-Expert AI Agents!

Eccentric rocking type reduction gear

A reduction gear and eccentric technology, which is applied in the direction of gear transmission, belt/chain/gear, transmission device, etc., can solve the problems of shortened bearing life and vibration of eccentric oscillating reduction gear

Inactive Publication Date: 2013-07-31
JTEKT CORP
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This often results in shortened bearing life
Also, eccentric oscillating type reduction gears may generate vibration

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
  • Eccentric rocking type reduction gear
  • Eccentric rocking type reduction gear
  • Eccentric rocking type reduction gear

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0115] The present invention can be modified as follows.

[0116] In this embodiment, by increasing or decreasing the depth L of the chamfers 34 and 35 4 and L 5 , the unbalance amount of the crankshaft 3 can be finely adjusted, but the following modifications can also be applied. For example, as Figure 10 As shown in (a), additional holes 87 may be formed in at least either end of the crankshaft 3, or, as in Figure 10 As shown in (b), a counterweight 88 can be added. Furthermore, by using the hole 87 and the counterweight 88 at the same time, the balance of the crankshaft 3 can be adjusted. Furthermore, by partially cutting the circumferential surface of the crankshaft 3, that is, cutting the cylindrical portion 38, rather than cutting the end of the crankshaft 3, the balance can be adjusted. In this case, the hole 87 and the balance weight 88 serve as the axial end balance adjustment portion.

[0117] When the hole 87 is used to adjust the balance of the couple actin...

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

A crankshaft (3) has eccentric holes (36, 37) communicating with each other. The eccentric hole (36) extends in the axial direction of the crankshaft (3) from one end surface of the crankshaft (3) and is disposed so as to be eccentric in the same direction as a cam section (31). The eccentric hole (37) extends in the axial direction of the crankshaft (3) from the other end surface of the crankshaft (3) and is disposed so as to be eccentric in the direction of the eccentricity of a cam section (32). A centrifugal force due to the rotation of the crankshaft (3) generates a force couple about an axis which is perpendicular to the axis of the crankshaft (3). The force couple is reduced by the eccentric holes (36, 37). The cam sections (31, 32) are arranged around the axis (a1) of rotation with the phases shifted by 180 degrees from each other. As a result, a translational force acting in the direction perpendicular to the axis of the crankshaft (3) is also reduced.

Description

technical field [0001] The present invention relates to an eccentric rocking type reduction gear, and more particularly, the present invention relates to an improved solution for the rotational balance of a crankshaft that performs eccentric rocking on an external gear of the eccentric rocking type reduction gear. Background technique [0002] The eccentric rocking type reduction gear includes a crankshaft. The crankshaft includes an eccentric cylindrical cam to perform eccentric rocking on the external gear. Generally, a crankshaft is used as an input shaft and rotates at a high speed. Therefore, a variable load acts on the bearing supporting the crankshaft due to the centrifugal force inherent in the unbalanced shape of the eccentric cylindrical cam. For example, according to the reduction gear disclosed in Patent Document 1, in order to reduce such a fluctuating load, an eccentric cylindrical cam is formed to have a counterweight. This suppresses unbalance caused by th...

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
Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/32
CPCF16H2001/324F16H2001/325F16H1/32F16H2001/328
Inventor 佐藤久高加藤喜绅
Owner JTEKT CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com