Novel composite impact drill

A percussion drill, a new type of technology, applied in the field of percussion drills, can solve the problems of high vibration and noise, severe tooth wear, short life, etc., to achieve the effect of reducing vibration, improving life and reliability

Active Publication Date: 2015-10-21
CHONGQING UNIV
View PDF5 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The rotary motion of the traditional impact drill is generated by the gear reduction mechanism driven by the motor. This structure will cause friction and heat generation, severe tooth wear, short life, and very large vibration and noise.

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
  • Novel composite impact drill
  • Novel composite impact drill

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0011] figure 1 Schematic diagram of the structure of the present invention; figure 2 It is a schematic diagram of the structure of the end-curved gear 5, as shown in the figure: the new composite percussion drill of this embodiment includes a housing 1, a punch 2, a driving device 3, and an impact mechanism connected between the driving device 3 and the punch 2 in transmission; The impact mechanism includes a driving gear 4, an end curve gear 5 and an elastic member 6. The driving gear 4 is mounted on the housing and driven to rotate by the driving device 3. The driving gear 4 meshes with the end curve gear 5 to form an end curve gear pair, end curve gear 5 is fixed to the punch 2, the elastic member 6 is supported between the housing 1 and the end curve gear 5 to provide axial elastic force for the end curve gear 5 to keep the end curve gear 5 in mesh with the driving gear 4, the punch 2 is A shaft-shaped part arranged vertically. The punch 2 is connected to the housing 1 by...

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 novel composite impact drill. The novel composite impact drill comprises a shell, a punch, a driving device, and an impact mechanism in transmission connection between the driving device and the punch, wherein the impact mechanism comprises a driving gear, an end curved surface gear and an elastic piece; the driving gear is mounted on the shell, and is driven by the driving device to rotate; the driving gear is engaged with the end curved surface gear; and the end curved surface gear is fixed on the punch; the elastic piece is supported between the shell and the end curved surface gear for providing axial elastic force to the end curved surface gear to keep the engagement between the end curved surface gear and the driving gear. The novel composite impact drill has the novel impact mechanism, and the driving gear can be driven by the motor; the driving gear and the end curved surface gear are engaged to generate a compound motion of rotation and axial movement so as to generate impact; the spring provides restoring force to generate a continuous reciprocating motion; and compared with the prior art, the novel composite impact drill simplifies the impact drill mechanism, and can achieve the purposes of reducing the vibration, prolonging the service life and improving the reliability.

Description

technical field [0001] The invention relates to a percussion drill, in particular to a novel compound percussion drill. Background technique [0002] Hammer mechanisms with hammer tube, piston and piston outer guide are known, for example, from hammer drills. Here, the impact mechanism drives the tool repeatedly in the form of rotation and impact, such as a chisel. In order to generate corresponding rotation and impact, the motor drives the crank slider mechanism or the piston driven by high-pressure gas to generate reciprocating motion, and the rotation driven by the motor Combination of movements to form a compound movement of rotation and impact. The impact motion of the drill bit breaks the surface of the excavated object, and the rotary motion brings out the chiseled debris. The rotary motion of the traditional impact drill is generated by the gear reduction mechanism driven by the motor. This structure will cause friction and heat, severe tooth wear, short life, and ...

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): B25D11/06B25D17/00
Inventor 林超刘毅
Owner CHONGQING UNIV
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