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

Percussion hammer and/or drill hammer comprising a safety coupling

A technology of impact hammer and impact drill, applied in the direction of light impact tools, impact tools, wrench, etc., can solve the problems of unfavorable equipment control, etc., and achieve the effect of easy pre-assembly

Inactive Publication Date: 2007-07-11
WACKER NEUSON SE
View PDF2 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With known types of power hammers, the drill head can rotate freely and without control, which is not conducive to the control of the entire equipment

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
  • Percussion hammer and/or drill hammer comprising a safety coupling
  • Percussion hammer and/or drill hammer comprising a safety coupling
  • Percussion hammer and/or drill hammer comprising a safety coupling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] A transmission gear 21 is installed on the standard socket 20 , and its smooth sliding surface 22 pushes against the flange ring 23 on the standard socket 20 . The transfer gear 21 is free to rotate relative to the standard socket 20 and meshes with a mating gear (not shown in the figure) from which the transmission torque (of the drive device not shown in the figure) is transmitted. On the side of the end surface 24 opposite the smooth sliding surface 22 of the transmission gear 21, there is a ratchet meshing surface 26 composed of a plurality of radially staggered pawls 25 (see accompanying drawing 2)

[0041] On the end of the standard nipple 20 opposite the flange ring 23 is mounted an adapter ring 27 (eg press-fitted). Of course, other ways can also be used to fix the adapter ring 27 on the standard socket 20, such as fixing with screws, or forming an integral body with it.

[0042] An axially movable locking ring 28 is installed between the engaging ring 27 and t...

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

Disclosed is a safety coupling in a percussion hammer and / or drill hammer, comprising a basic sleeve (20), a driven toothed wheel (21) that is rotatably mounted on the basic sleeve (20) and can be driven by a drive unit, a closing ring (27) which is fastened to the basic sleeve (20), and a locking ring (28) located between the driven toothed wheel (21) and the closing ring (27). Said locking ring is fixed in a torsion-proof manner relative to the closing ring (27) while being movable relative to the closing ring (27) in an axial direction, counter to the effect of a spring mechanism (29). The locking ring (28) is axially displaced while the driven toothed wheel (21) remains in the axial position thereof when a threshold torque is exceeded.

Description

technical field [0001] The invention relates to a percussion hammer and / or percussion drill (Schlag-und / oder Bohrhammer) equipped with a safety coupling. Background technique [0002] Especially when performing drilling operations, the percussion hammer and / or percussion drill (hereinafter all referred to as power hammer) all have the following dangers, that is: the drill bit or drill bit will suddenly get stuck in the rock, which may cause damage to the power hammer. Sudden increase in applied torque, causing damage to the drive train. In addition, the operator's hands must withstand these torques, so when the equipment is heavy and the drilling tool suddenly jams, it may cause the hammer to fly out of the operator's hands. In view of this, in known types of power hammers, a safety coupling is installed in the direction of torque transmission, and when a certain specified limit torque is exceeded, the torque transmission in the equipment is interrupted. This ensures that ...

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): B25F5/00B25B23/14B25D17/00
CPCB25D17/00B25D2250/205B25D2250/301
Inventor R·比尔格W·斯米德
Owner WACKER NEUSON SE
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