Chisel holder

A tool holder and tool technology, applied in cutting machinery, stone processing equipment, construction, etc., can solve the problems of tool holder wear, cost, high tool cost, machine downtime, etc., and achieve the effect that is beneficial to cutting

Active Publication Date: 2013-09-11
WIRTGEN GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The tool holder then suffers unprotected wear and cannot accommodate a replacement chisel after a short time
Then, it is necessary to spend a lot of money to replace the tool holder
In addition, if the base part is worn, it must also be separated from the milling roller tube and replaced, with much greater expense and time
[0005] If the state of wear of the chisel is not known in time, or breakage occurs, this can result in high tool costs and machine downtime
This downtime is very costly, so keep it to a minimum

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] figure 1Base part 10 is shown with an underside 11 having a concavely arched seating surface. By means of this mounting surface, the base part can be placed on the cylindrical outer surface of the milling roller and fixedly welded thereto. The tool holder 20 is connected to the base part 10 .

[0038] like Figure 5 As shown, the base part 10 has a plug receptacle 15 which accommodates the plug-in projection 21 of the tool holder 20 . Refer below Figure 6 to Figure 8 The structure of the tool holder 20 is explained in detail.

[0039] like Image 6 As shown, the tool holder 20 has an insertion projection 21 to which a support projection 25 is attached at an angle. In this case, an obtuse angle is ideally enclosed between the insertion projection 21 and the support projection 25 . The insertion projection 21 forms a front side 21 . 1 in the region of its insertion projection front side 22 facing the tool feed direction V. The two grooves are formed in the front ...

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PUM

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Abstract

The invention relates to a chisel holder for a ground-processing machine, in particular a surface miner, a road-milling machine or the like, comprising a holding extension which has a chisel receptacle and/or bears a cutting element. In order to improve the operational reliability of a ground-processing machine, it is proposed according to the invention that the holding extension has, behind the cutting element or behind a receiving region of the chisel receptacle, as viewed in the tool advance direction, a wear protection element with a hard material element for fulfilling an anti-friction property.

Description

technical field [0001] The invention relates to a tool holder for a ground working machine, in particular a surface mining machine, a road milling machine or the like, which has a support projection with a chisel receptacle and / or carries a cutting element. [0002] The invention also relates to a support for a tool holder and to a mining machine or similar ground working machine. Background technique [0003] A tool holder changing system with a base part and a tool holder is known from DE 43 22 401 A1. The base part has support feet by means of which the base part can be welded to the outer circumference of the milling roller. The plug receptacle is formed in the base part. The tool holder with its insertion projection can be accommodated in this plug receptacle. To secure the tool holder in the base part, a compression screw is used, which pulls the insertion projection into the plug receptacle and tightens it there. The tool holder has a bore as a chisel holder. A ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C23/088E21C35/19E21C35/193E21C25/10
CPCE21C35/183E21C35/1833E21C35/1831E21C25/10E21C35/18B28D1/186E01C23/088
Inventor 托马斯·莱纳特K·布尔西鲁斯·巴里马尼京特·亨
Owner WIRTGEN GMBH
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