CN206046154U - Lithotrite toothing - Google Patents

Abstract

A rock crusher tooth structure, which includes a cuboid block tooth body, the top of the tooth body is a working surface, and the working surface is provided with a pointed tooth head at the front end, and the tooth head is composed of The front row is composed of two large hard alloy blocks connected side by side. The front end of each block hard alloy block is an upturned pointed end surface. The tooth head formed by the large hard alloy block The area of the upper part is greater than one-third of the area of the entire working surface, and the top of the tooth head is higher than the working surface; the bottom of the tooth body is the assembly surface, and the assembly surface from the middle position to the rear end is an intermediate circle After the arc transition, the oblique assembly surface is inclined downward; it has the characteristics of reasonable structure, convenient use and installation, good structure of the overall tooth head, and wear resistance, thereby prolonging the service life and improving work efficiency.

Description

Crusher tooth structure

technical field

The utility model relates to a rock crusher tooth structure, which belongs to the technical field of ore machinery equipment.

Background technique

Mining stone crusher is a common mining powder equipment, usually used for primary crushing of ore. After the tooth head of the existing mining rock crusher is connected with the driving pivot, it will collide with the ore during work, thereby crushing the ore; but the tooth head of the existing rock crusher is made of hard metal material , under the impact and vibration of ore, the structure of the tooth head is easily damaged. Even if the working head of the tooth head is made of cemented carbide, but the structural design is not reasonable enough, it is easy to cause other parts of the tooth head to be impacted by the ore , so that the structure of the entire tooth head is damaged, and it is often necessary to replace the tooth head, which affects work efficiency and increases the cost of use.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies in the prior art, and provide a tooth structure of a stone crusher with reasonable structure, convenient use and installation, good overall tooth head structure, wear resistance, prolonging service life and improving work efficiency .

The purpose of this utility model is solved by the following technical solutions: a tooth structure of a stone crusher, which includes a cuboid block-shaped tooth body, the upper surface of the tooth body is a working surface, and the working surface is located at the front end. Pointed tooth head, the tooth head is composed of two large block-shaped hard alloy blocks joined together in the front row, and the front end of each block-shaped hard alloy block is an upturned pointed end face , the area of the upper part of the tooth head formed by the large block of hard alloy block is greater than one-third of the area of the entire working surface, and the top of the tooth head is higher than the working surface; the bottom of the tooth body is the assembly surface, Wherein the assembly surface from the middle position to the rear end is an oblique assembly surface inclined obliquely downward after a middle circular arc transition.

As a preference: the front end surface below the tooth head is a downward and inwardly retracted front slope, while the rear end surface of the tooth body is a rear slope that expands from top to bottom, and the front slope and the rear slope are in the same direction of inclination slope.

The utility model is an improvement on the prior art, and it has the characteristics of reasonable structure, convenient use and installation, good firmness of the overall tooth head structure, wear resistance, thereby prolonging the service life and improving work efficiency.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a view along the direction A of Fig. 1 .

Fig. 3 is a view taken along direction B of Fig. 1 .

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings: As shown in Figures 1-3, a tooth structure of a rock crusher described in the utility model includes a cuboid block tooth body 1, the tooth body 1 Above is the working surface 2, the working surface 2 is located at the front end and is provided with a pointed tooth head 3. The tooth head 3 is composed of two large hard alloy blocks 4 connected in parallel in the front row. The front ends of the block-shaped hard alloy blocks 4 each have an upturned pointed end face 5, and the area of the upper part of the tooth head 3 formed by the large block-shaped hard alloy blocks 5 is greater than one-third of the area of the entire working surface 2 , the top of the tooth head 3 is higher than the working surface 2; the bottom of the tooth body 1 is the assembly surface 6, wherein the assembly surface from the middle position to the rear end is a middle circular arc 7 after the transition to an oblique downward direction Inclined sloping mounting surface 8 .

As shown in the figure, the lower front end surface of the tooth head 3 is a downward and retracted front slope 9, while the rear end surface of the tooth body 1 is a rear slope 10 that expands from top to bottom, and the front slope 9 It is a slope in the same direction as the rear slope 10 .

The utility model is provided with two side-by-side large alloy blocks on the tooth head, which increases the area of hard alloy on the upper working surface, thereby greatly improving the wear resistance and service life of the product.

Claims (2)

1. a kind of lithotrite toothing, it includes the block tooth body of a cuboid, is work surface above the tooth body, the work Make face and leading section is provided with the tooth head of wedge angle type, it is characterised in that described tooth head is by front-seat two and the bulk that connects Shape hard alloy blocks are constituted, and the leading section of per block hard alloy blocks is each in the pointed shape end face for upwarping, the big bulk The tooth head top area that hard alloy blocks are constituted is higher by institute more than 1/3rd of whole face area above tooth head State work surface；It is fitting surface below the tooth body, wherein the fitting surface in centre position to rearward end is a middle circular arc With inclined oblique fitting surface obliquely after transition.

2. lithotrite toothing according to claim 1, it is characterised in that the tooth lower head front end face is for downwards simultaneously The front bevel for inside contracting, and be that from the top down and the back bevel that extends out, and front bevel and back bevel are in same in the rear end face of tooth body The inclined-plane of one incline direction.