CN211989042U

CN211989042U - Wear-resisting cutter head for tire crusher

Info

Publication number: CN211989042U
Application number: CN202020113210.2U
Authority: CN
Inventors: 王振
Original assignee: Jinan Zhiding Industrial Technology Co ltd
Current assignee: Jinan Zhiding Industrial Technology Co ltd
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2020-11-24
Anticipated expiration: 2030-01-19

Abstract

The utility model relates to a tire crushing tool, concretely relates to wear-resisting cutter head for tire crusher, comprising a cutter face, a mounting hole, a plurality of cutter heads and a cutter back between adjacent cutter heads, wherein an edge wear-resisting layer and a plurality of inner wear-resisting layers are welded on the cutter face, and cutter head wear-resisting layers are welded on the upper end and the left and right ends of the cutter heads; the edge wear-resistant layer is welded at the junction of the knife face and the knife head and the knife back, and the inner wear-resistant layer is welded on the knife face between the mounting hole and the edge wear-resistant layer in an annular mode by taking the mounting hole as the center. The cutter head after the wear-resistant layer is welded, the welding hardness can reach HRC 62-65, the wear resistance is greatly improved, the whole service life can be prolonged by more than 8 times, the downtime is reduced, and the production efficiency is improved. The worn cutter head can be continuously repaired by welding the wear-resistant layer, and can be continuously reused, so that the cost and the material waste are reduced.

Description

Wear-resisting cutter head for tire crusher

Technical Field

The utility model relates to a tire crushing tool, concretely relates to tire breaker is with wear-resisting blade disc.

Background

The tire crusher crushes tires by using high extrusion force generated by relative rotation of two or more groups of toothed rollers, a cutter head on the toothed rollers generally adopts low-alloy tool steel after conditioning, and the hardness can reach HRC 40-50. The high extrusion force during crushing can make the fluted roller temperature rise, can mix debris such as some grit, metal in the tire, and the impact wear is great, leads to phenomena such as the blade disc wearing and tearing seriously, cutting edge collapse, generally need shut down the maintenance every two weeks, very influences work efficiency.

Disclosure of Invention

In order to solve the problem, the utility model provides a tire crusher is with wear-resisting blade disc through the welded wearing layer, greatly improves the wearability of blade disc, long service life, avoids frequently stopping. The utility model adopts the technical scheme as follows:

a wear-resistant cutter head for a tire crusher comprises a cutter face, a mounting hole, a plurality of cutter heads and a cutter back between adjacent cutter heads, wherein an edge wear-resistant layer and a plurality of inner wear-resistant layers are welded on the cutter face, and cutter head wear-resistant layers are welded at the upper end and the left end and the right end of each cutter head; the edge wear-resistant layer is welded at the junction of the knife face and the knife head and the knife back, and the inner wear-resistant layer is welded on the knife face between the mounting hole and the edge wear-resistant layer in an annular mode by taking the mounting hole as the center.

Above-mentioned tire is wear-resisting blade disc for breaker, the cutter back abrasionproof layer has all been welded at both ends about the cutter back.

Above-mentioned wear-resisting blade disc for tire breaker, the welding of interior wearing layer has 1~3, and the interval between the adjacent interior wearing layer is 10mm at least.

Above-mentioned tire breaker is with wear-resisting blade disc, the welding bead width of edge wearing layer and interior wearing layer is 10~12mm, the welding bead width on tool bit abrasionproof layer and back of a knife abrasionproof layer is 8~10 mm.

The utility model has the advantages that: the cutter head after the wear-resistant layer is welded, the welding hardness can reach HRC 62-65, the wear resistance is greatly improved, the whole service life can be prolonged by more than 8 times, the downtime is reduced, and the production efficiency is improved. The worn cutter head can be continuously repaired by welding the wear-resistant layer, and can be continuously reused, so that the cost and the material waste are reduced.

Drawings

Fig. 1 is a schematic front view of a first embodiment of the present invention;

fig. 2 is a schematic side view of a first embodiment of the present invention;

fig. 3 is a schematic front view of a second embodiment of the present invention.

In the figure: 1 is a knife face, 2 is a knife head, 3 is a knife back, 4 is a mounting hole, 11 is an edge wear-resistant layer, 12 is an inner wear-resistant layer, 21 is a knife head wear-resistant layer, and 31 is a knife back wear-resistant layer.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

A wear-resistant cutter head for a tire crusher comprises a cutter face 1, a mounting hole 4, a plurality of cutter heads 2 and a cutter back 3 between the adjacent cutter heads 2, wherein an edge wear-resistant layer 11 and a plurality of inner wear-resistant layers 12 are welded on the cutter face 1, and cutter head wear-resistant layers 21 are welded at the upper end and the left end and the right end of each cutter head 2; the edge wear layer 11 is welded at the juncture of the knife face 1 and the knife head 2 and the knife back 3, and the inner wear layer 12 is welded on the knife face 1 between the mounting hole 4 and the edge wear layer 11 in an annular manner by taking the mounting hole 4 as the center.

According to the wear-resistant cutter head for the tire crusher, the left end and the right end of the cutter back 3 are respectively welded with the cutter back wear-resistant layer 31.

Above-mentioned wear-resisting blade disc for tire breaker, interior wearing layer 12 welding has 1~3, and the interval between the adjacent interior wearing layer 12 is 10mm at least.

Above-mentioned tire breaker is with wear-resisting blade disc, the welding bead width of edge wearing layer 11 and interior wearing layer 12 is 10~12mm, the welding bead width of tool bit abrasionproof layer 21 and back of a knife abrasionproof layer 31 is 8~10 mm.

The cutterheads in the two embodiments are made of low alloy steel, and can also be made of alloy steel with lower carbon content, so that the cutterheads can be better combined with welding wires with high alloy steel metal powder cores. After the to-be-welded part of the cutter head is ground, the cutter head and the welding wire are preheated, and welding can be carried out. The post-welding hardness is generally HRC 62-65, and tempering is not required.

The first embodiment is a three-cutter head type cutter head, which is generally used for crushing small tires such as cars and the like. The second embodiment is a toothed cutter head, which is generally used for crushing large tires such as trucks and the like, and has larger bearing capacity.

The cutter head is made of low alloy steel, and the whole cutter face 1 is tightly welded with the inner wear-resistant layer 12 from the aspect of wear resistance initially, but the actual service life is only about 1 month. The surface layer was found to have significant cracks after the blade face 1 was ground again. In order to avoid that such post-weld cracks affect the rigidity of the cutter head, the inner wear-resistant layer 12 is adjusted to be welded at a certain interval. Through the use, the interval between the inner wear-resistant layers 12 is 10 mm-15 mm, and the service life is long.

Claims

1. The utility model provides a tire crusher is with wear-resisting blade disc, includes knife face (1), mounting hole (4), several tool bit (2) and back of a knife (3) between adjacent tool bit (2), its characterized in that: an edge wear-resistant layer (11) and a plurality of inner wear-resistant layers (12) are welded on the knife face (1), and a knife head wear-resistant layer (21) is welded at the upper end, the left end and the right end of the knife head (2); the edge wear layer (11) is welded at the junction of the knife face (1) and the knife head (2) and the knife back (3), and the inner wear layer (12) is welded on the knife face (1) between the mounting hole (4) and the edge wear layer (11) in an annular mode by taking the mounting hole (4) as the center.

2. The wear-resistant cutter head for the tire crusher of claim 1, wherein: the left end and the right end of the knife back (3) are both welded with the knife back wear-resistant layers (31).

3. The wear-resistant cutter head for the tire crusher of claim 2, wherein: the welding of interior wearing layer (12) has 1~3, and the interval between adjacent interior wearing layer (12) is 10mm at least.

4. The wear-resistant cutter head for the tire crusher of claim 3, wherein: the welding bead width of edge wearing layer (11) and interior wearing layer (12) is 10~12mm, the welding bead width of tool bit abrasionproof layer (21) and back of a knife abrasionproof layer (31) is 8~10 mm.