Unlock instant, AI-driven research and patent intelligence for your innovation.

Power nutrunner with a power transmitting gearing and rotation sensing means and method for determining the status

A technology of nut wrench and power transmission, which is applied in the direction of wrench, screwdriver, motor tool, etc., and can solve problems such as angle lag

Active Publication Date: 2012-10-31
ATLAS COPCO TOOLS AB
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There will be an angular lag between the output spindle and the motor

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
  • Power nutrunner with a power transmitting gearing and rotation sensing means and method for determining the status
  • Power nutrunner with a power transmitting gearing and rotation sensing means and method for determining the status
  • Power nutrunner with a power transmitting gearing and rotation sensing means and method for determining the status

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] figure 1 The front section of the nutrunner shown in includes a housing 10 connectable to the not shown rear section of the nutrunner, comprising a rotating motor and a power supply connected to the motor. The front section housing 10 comprises an angle head 11 with an output spindle 12 journalled in a ball bearing 13 forward and a needle bearing 14 behind. The output spindle 12 has an output end 15 for carrying a nut sleeve for connection to a screw joint to be tightened. One of the ball races of the forward ball bearing 13 is formed directly on the output spindle 12, while the other ball race is formed on the end cap 17 which is screwed to the forward end of the angle head 11. inside the end. The output main shaft 12 is connected to the electric motor through an angular gear train 18 comprising a pinion 20 on the intermediate shaft 19 and a bevel gear 21 on the output main shaft 12 , and an intermediate shaft 19 . The intermediate shaft 19 is journaled in adjustabl...

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 power nutrunner having a housing (10,11) with a rotation motor, a power transmitting gearing (18), and an output spindle (12), wherein a rotation sensing means (26,27) is associated with the output spindle (12) and arranged to deliver equidistantly generated pulse signals to an evaluation unit to detect undesirable irregularities in the rotational movement of the output spindle (12) caused by deficiencies of the gearing (18).

Description

technical field [0001] The present invention relates to a nutrunner having a rotating motor connected to an output spindle through a power transmission gear train. Background technique [0002] Typically, nutrunners of the type described above have torque sensing means for indicating the torque transmitted to the screw joint being tightened. Either this torque detection means is of the electromechanical type associated with a reduction gear train or is used to monitor the motor current / torque in the case of power tools combined with a motor drive. In some cases, especially in linear type tools, a torque sensing device is associated with the output spindle and gives a fairly accurate signal related to the torque actually transmitted, since in these cases the torque signal does not Disturbances due to imperfections created by the reduction gear train. However, a torque sensing device located on the output spindle in an angle nutrunner may give a reliable torque signal, but h...

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 Patents(China)
IPC IPC(8): B25B21/00B25B23/14B25B23/142
CPCB25B23/14B25B21/00B25B23/1405B25B23/1425
Inventor K·J·L·埃尔斯马克E·V·佩尔松
Owner ATLAS COPCO TOOLS AB