CN210483726U

CN210483726U - Cutting tooth used on ore machine

Info

Publication number: CN210483726U
Application number: CN201920992180.4U
Authority: CN
Inventors: 周志建
Original assignee: Zhejiang Pacific Machinery Co Ltd
Current assignee: Zhejiang Pacific Machinery Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-05-08
Anticipated expiration: 2029-06-28

Abstract

The utility model provides a pick that uses on ore deposit machine, it includes columniform handle of a knife and columniform tool bit body and constitutes, the front end post head center department of tool bit body is equipped with the semicircular deep hole that is of an indent to be equipped with an annular alloy groove around the deep hole, be equipped with a plurality of evenly distributed's circular aperture in this alloy groove, and it has vertical bar form carbide piece to inlay in the aperture, the outside of carbide piece is equipped with the location limit that the round is used for the location usefulness that is ramp form, the bottom of tool bit body is equipped with one and extends the outside shirt rim that goes out of cylindrical tool bit body outside, form the transition limit of an L type between tool bit body and the shirt rim, it has simple structure, reasonable, and convenient to use can increase the wearability on product surface, and intensity is big, the fastness is high, can improve characteristics such as product life and availability factor.

Description

Cutting tooth used on ore machine

Technical Field

The invention relates to the field of mining machines, in particular to a cutting pick used on a mining machine.

Background

The mining cutting tooth is one of the vulnerable parts in coal mining and roadway tunneling machinery, is a main tool for coal falling and breaking, and has the performance that the performance of the cutting tooth directly influences the exertion of the production capacity of the coal mining machinery, the power consumption, the working stability and the service life of other related parts. The existing mining cutting pick mainly comprises a cutting pick body and a hard alloy tool bit, wherein the hard alloy tool bit is embedded in a concave hole at the end part of the cutting pick body and fixedly connected through brazing. The hard alloy tool bit at the head part of the mining cutting pick has a coal mining effect and good wear resistance, so that a certain wear-resistant mining effect can be achieved, and the service life of the cutting pick is prolonged; however, as a mineral cutting pick product, in a specific mining process, the whole cutting pick extends into a coal mine layer, wherein the head hard alloy cutter head plays a forward rotating propelling role, and the whole cutting pick body, particularly the front end part of the cutting pick body close to and provided with the hard alloy cutter head, is also subjected to more or less strong friction of the coal mine layer.

Disclosure of Invention

An object of the utility model is to overcome the not enough of prior art existence, and provide a simple structure, reasonable, convenient to use can increase the wearability on product surface, and intensity is big, the fastness is high, can improve product life and availability factor's mining pick.

The purpose of the utility model is accomplished through following technical scheme: the utility model provides a pick that uses on ore deposit machine, it includes that columniform handle of a knife and columniform tool bit body constitute, its characterized in that the front end post head center department of tool bit body is equipped with the semicircular deep hole that is of an indent to be equipped with an annular alloy groove around the deep hole, be equipped with a plurality of evenly distributed's circular aperture in this alloy groove, and it has vertical bar form carbide piece to inlay in the aperture, the outside of carbide piece is equipped with the location limit that is used for the location usefulness that the round is slope form, the bottom of tool bit body is equipped with one and extends the outside shirt rim that goes out in cylindrical tool bit body outside, form the transition limit of an L type between tool bit body and the shirt rim.

Preferably, the method comprises the following steps: the top end of the cylindrical tool handle is provided with a circular supporting surface connected with the bottom skirt edge of the tool bit, the bottom of the cylindrical tool handle is provided with an annular clamping ring groove, an outer circular plate-shaped bottom seat is formed, and a conical slope convenient for positioning and used for transition is arranged on the bottom seat.

Preferably, the method comprises the following steps: the two sides of the top of the hard alloy block are respectively provided with a semicircular slope surface, an inwards concave working groove is arranged between the two semicircular slope surfaces, and the hard alloy blocks are at least 8 and are arranged in the circular small holes in the alloy grooves in a pairwise opposite mode.

The utility model belongs to an improvement to prior art, have simple structure, reasonable, convenient to use can increase the wearability on product surface, and intensity is big, fastness is high, can improve characteristics such as product life and availability factor.

Description of the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of fig. 1 taken along direction a.

Detailed Description

The invention will be described in detail below with reference to the following figures: FIG. 1 shows: the utility model provides a pick that uses on ore deposit machine, it includes that columniform handle of a knife 1 and columniform tool bit body 2 constitute, its characterized in that the front end post head center department of tool bit body 2 is equipped with the semicircular deep hole 3 that is of an indent to be equipped with an annular alloy groove 4 around deep hole 3, be equipped with a plurality of evenly distributed's circular aperture 5 in this alloy groove 4, and it has vertical bar form carbide piece 6 to inlay in the aperture 5, the outside of carbide piece 6 is equipped with the round and is the slope form be used for the location limit 7 of location usefulness, the bottom of tool bit body 2 is equipped with one and extends the outside shirt rim 8 that goes out of columniform tool bit body outside, form the transition limit 9 of an L type between tool bit body 2 and the shirt rim 8.

As shown in the figure: the top end of the cylindrical tool handle 1 is provided with a circular supporting surface 10 connected with a bottom skirt edge of the tool bit, the bottom of the cylindrical tool handle 1 is provided with an annular clamping ring groove 11 and forms an outer circular plate-shaped bottom seat 12, and a conical slope 13 convenient for positioning and used for transition is arranged on the bottom seat.

As shown in fig. 2: two sides of the top of the hard alloy block are respectively provided with a semicircular slope surface 14, an inward concave working groove 15 is arranged between the two semicircular slope surfaces, and the hard alloy blocks are at least 8 and are arranged in the circular small holes 5 in the alloy grooves in a pairwise opposite mode.

The cylindrical hard alloy is uniformly distributed at the front end taper angle head part of the tool bit body, and because the cylindrical hard alloy is deeply embedded into the corresponding deep hole at the taper angle head part and is firmly welded, the welding firmness is greatly improved, the wear resistance of the product is increased, and the service life of the product is prolonged; additionally the utility model discloses still adopt the shirt rim on 2 toper outer wall of tool bit body for the contact surface increase between tool bit and the handle of a knife, increased area of contact and let the pick not fragile, also let the handle of a knife at tool bit during operation can protect the rear, support and keep off fine and small powder and get into the rear, this wear resistance that has also improved the product greatly improves the life of product equally.

Claims

1. The utility model provides a pick that uses on ore deposit machine, it includes that columniform handle of a knife and columniform tool bit body constitute, its characterized in that the front end post head center department of tool bit body is equipped with the semicircular deep hole that is of an indent to be equipped with an annular alloy groove around the deep hole, be equipped with a plurality of evenly distributed's circular aperture in this alloy groove, and it has vertical bar form carbide piece to inlay in the aperture, the outside of carbide piece is equipped with the location limit that is used for the location usefulness that the round is slope form, the bottom of tool bit body is equipped with one and extends the outside shirt rim that goes out in cylindrical tool bit body outside, form the transition limit of an L type between tool bit body and the shirt rim.

2. A cutting pick for use on a mining machine as claimed in claim 1, wherein the top end of the cylindrical shank has a circular support surface for attachment to a skirt at the bottom of the cutting head, the bottom of the cylindrical shank having an annular snap ring groove and defining an outer circular plate-like bottom abutment having a tapered ramp for facilitating location and transition.

3. A cutting pick for a mining machine as claimed in claim 1, wherein the top of the cemented carbide block has semi-circular slopes on each side, a concave working groove is provided between the two semi-circular slopes, and the cemented carbide blocks are at least 8 and arranged in pairs in opposite circular holes in the alloy groove.