Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Portable power tool with indicating means for actual operation parameter values

A power tool and parameter value technology, applied in the field of grinding machines, can solve the problems of high-cost production interference tool repair of power tools, loss of running time indication, etc.

Active Publication Date: 2011-01-12
ATLAS COPCO INDAL TECHN
View PDF1 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There is also an indication of run time because if the power tool is used for an accumulated time that exceeds the scheduled maintenance interval, there is an increased risk of power tool failure and subsequent costly production interruptions and tool repairs loss of

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
  • Portable power tool with indicating means for actual operation parameter values
  • Portable power tool with indicating means for actual operation parameter values
  • Portable power tool with indicating means for actual operation parameter values

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The power tool shown in the drawing is a portable air grinder comprising a housing 10 with a rear handle 11 forming a compressed air supply channel 12 . The handle 11 has at its rear end a connection socket 13 for a compressed air line and includes an air throttle operated by a control lever 14 . The housing 10 also carries a support handle 17 and a safety cover 18 which partially surrounds a grinding wheel 19 connected to a not shown output shaft of the tool. The housing 10 also includes a top cover 22 connected to the main body of the housing 10 by four screws 23 .

[0014] The power tool also includes a rotary electric machine in the form of a single-stage turbine comprising a turbine wheel 25 and an oil-lubricated reduction gear 26 . Very fast turbine wheel speeds must be slowed down to safely drive standard grinding wheels, and the lubrication and cooling issues of this high speed transmission 26 require lubricating oil rather than grease. The transmission 26 is ...

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 portable power tool having a housing (10,22) with a rotation motor (11) for powering a working implement (19), wherein sensors (28,29,38) are provided to indicate the motor speed and the power supply, and a programmable evaluation unit (36) is arranged to compare indicated speed and pressure values with stored limit values, and to accumulate the total operation time of the power tool and compare that with preset time limits for tool service intervals, and optical information means (43-49) are provided on the housing (10,22) to indicate whether those stored limit values have been reached.

Description

technical field [0001] The invention relates to a hand-held power tool with an indication device for obtaining information on the value of an actual operating parameter. In particular, the invention relates to a hand-held power tool, such as a grinder, including a rotating electric machine. Background technique [0002] In power tools of the above type, the operator necessarily has the problem of operating the tool at acceptable values ​​of operating parameters, ie correct speed, correct power supply. This creates uncertainty regarding the safety of the operator and the safety and efficiency of the power tool. If for example the grinder is run at too high a rotational speed there may be a risk of the grinding disc exploding, conversely if the tool is run at too low a speed the working operation will be insufficient. Too low a speed will also cause excessive wear of the grinding disc. If the supplied air pressure is too high, for example in an air grinder, there may be a r...

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): B24B23/02B24B55/00F01D15/06
CPCB24B23/026B24B49/08F01D15/06B24B23/028B24B55/00B24B49/10G07C3/00F01D15/062
Inventor J·R·C·弗里伯格A·U·尼尔森
Owner ATLAS COPCO INDAL TECHN
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com