CN219024489U

CN219024489U - Wear-resistant splitting breaking plate hammer

Info

Publication number: CN219024489U
Application number: CN202223231397.4U
Authority: CN
Inventors: 卢洪波; 廖清泉; 马峰; 章晓阳; 卢鹏; 廖亦聪
Original assignee: Zhengzhou Dingsheng Hi Tech Energy Engineering Technology Co ltd
Current assignee: Zhengzhou Dingsheng Hi Tech Energy Engineering Technology Co ltd
Priority date: 2022-12-04
Filing date: 2022-12-04
Publication date: 2023-05-16
Anticipated expiration: 2032-12-04

Abstract

The utility model discloses an abrasion-resistant splitting breaking plate hammer which comprises a plate hammer body, wherein a main comb-shaped striking body is arranged on a striking surface of the plate hammer body, the main comb-shaped striking body is formed by arranging a plurality of comb-tooth bodies on the plate hammer body at intervals, the shape of the comb-tooth bodies is in a quadrangular frustum shape, the top surface of the quadrangular frustum is a striking surface, and the bottom surface of the quadrangular frustum is combined with the plate hammer body into a whole. In the crushing process, the impact area of the plate hammer on the crushed materials is reduced, the centralized impact of the plate hammer on the crushed materials is increased, the grinding of the crushed materials between the plate hammer and the third crushing cavity leveling lining plate is reduced, the fine powder rate in stone products is reduced, and the yield of stones is improved.

Description

Wear-resistant splitting breaking plate hammer

Technical Field

The utility model relates to a reaction crusher, in particular to an abrasion-resistant plate hammer which is arranged on a rotor of the reaction crusher.

Background

Impact crushers are commonly used for crushing materials in industries such as mines, chemical industry, building materials and the like, particularly for crushing hard rock such as granite, sandstone, shale, silica, volcanic rock, cobblestone and the like, and are commonly used for producing sandstone aggregates. The third impact cavity of the impact crusher has an equalizing function, so that the stone particles can be optimized, and the impact crusher is often used as crushing equipment for producing stones. Along with the continuous development of the sand industry, the large impact crusher is continuously appeared, and the aggregate is seriously crushed due to the high rotating speed of the rotor and large impact area of the plate hammer of the large impact crusher, so that the powder content of the produced stone is high. In the traditional cement industry, the high stone powder proportion caused by overgrinding is well accepted, but in the aggregate production of the sand stone aggregate industry, the use performance of the aggregate is seriously affected by excessive stone powder caused by overgrinding, and the large amount of stone powder caused by overgrinding is also waste of the aggregate, so that the increase of the powder content reduces the end product proportion of the aggregate; the generation of the over-crushing phenomenon leads to the increase of the work of idle work in the crushing, and the abrasion consumption of metal of a plate hammer and a crusher is large; in order to obtain the aggregate reaching the standard, excessive stone powder needs to be removed, powder selecting and washing equipment is needed, the process flow is relatively complicated, and the equipment is more, so that the electricity consumption cost is directly increased.

Disclosure of Invention

The utility model aims to solve the technical problem of high powder content in the material crushing process in the prior art, and designs the abrasion-resistant splitting breaking plate hammer, and due to the existence of the comb-shaped striking body, the striking area of the plate hammer on the crushed material is reduced in the crushing process, the concentrated striking of the plate hammer on the crushed material is increased, the grinding of the crushed material between the plate hammer and the third crushing cavity uniform lining plate is reduced, so that the fine powder rate in stone products is reduced, and the yield of stones is improved.

The aim of the utility model is realized by the following technical scheme:

the utility model provides a breaking plate hammer is split to resistance to wears, includes the plate hammer body, sets up main comb-shaped on the face of plate hammer body and strikes the body, and main comb-shaped strikes the body and is formed on the plate hammer body by a plurality of broach body intervals, and wherein the shape of broach body is quadrangular pyramid, and quadrangular top surface is the face of striking, quadrangular bottom surface and plate hammer body complex as an organic whole.

Above-mentioned fracture breaking plate hammer that wears to split also is provided with vice comb-shaped and strikes the body at the symmetry plane of hammer body face, and vice comb-shaped strikes the body and is formed on the plate hammer body by a plurality of broach body intervals setting, and wherein the shape of broach body is quadrangular frustum of a pyramid form, and quadrangular frustum of a pyramid's top surface is the surface of striking, and quadrangular frustum of a pyramid's bottom surface and plate hammer body are compound as an organic wholely.

Above-mentioned wear-resisting splitting breaking plate hammer, plate hammer body and main comb shape strike body and vice comb shape strike body compound as an organic wholely, are hypereutectic high chromium cast iron material.

The area of the bottom surface of the front side surface and the rear side surface of the comb tooth body, which are opposite, is smaller than the area of the bottom surface of the left side surface and the right side surface of the comb tooth body, which are opposite, and a distance L is between the two surfaces, wherein L is 15-20 mm.

The length a of the top surface of the comb tooth body is 100-120mm, and the depth b is 60-70mm.

Compared with the prior art, the utility model has the following technical effects:

according to the utility model, the working surface of the plate hammer body is designed into the comb-shaped striking body, the shape of the comb-shaped tooth body of the comb-shaped striking body is in a quadrangular frustum shape, the striking area of the plate hammer of the impact crusher is reduced, the concentrated striking of the plate hammer on the crushed materials is increased by reducing the striking area of the plate hammer on the crushed materials, and the grinding of the crushed materials between the plate hammer and the third crushing cavity leveling lining plate is reduced, so that the fine powder rate in stone products is reduced, and the yield of stones is improved. In addition, the comb-shaped striking body on the plate hammer body is divided into a main comb-shaped striking body and an auxiliary comb-shaped striking body, the main comb-shaped striking body and the auxiliary comb-shaped striking body are symmetrically arranged, and after the main comb-shaped striking body is worn in operation, the auxiliary comb-shaped striking body is turned over, so that the service life of the whole plate hammer is prolonged.

Drawings

Fig. 1 is a schematic view of a conventional plate hammer.

Fig. 2 is a right side view of fig. 1.

Fig. 3 is a schematic view of a first construction of the present utility model.

Fig. 4 is A-A view of fig. 3.

Detailed Description

An abrasion-resistant split breaking plate hammer as shown in fig. 3-4 is a breaking body fixed to the rotor of a counterattack breaker. During the high-speed rotation of the rotor, the abrasion-resistant splitting breaking plate hammer strikes the broken materials, so that the materials are broken. In order to reduce excessive fine powder generated by crushing materials by the plate hammer, the plate hammer is specially designed into a comb shape, and comb-shaped teeth are designed into a quadrangular frustum pyramid shape, so that the fine powder rate of the crushed materials can be reduced, and the yield of required stones is improved. The concrete structure of the abrasion-resistant splitting breaking plate hammer comprises a plate hammer body 1, wherein a main comb-shaped striking body 2 is arranged on a striking surface of the plate hammer body 1, the main comb-shaped striking body is formed by a plurality of comb tooth bodies 3 which are arranged on the plate hammer body at intervals, the shape of the comb tooth bodies is in a quadrangular frustum shape, the top surface of the quadrangular frustum is the striking surface, and the bottom surface of the quadrangular frustum is combined with the plate hammer body into a whole. The symmetrical surface of the striking surface of the hammer body is also provided with an auxiliary comb-shaped striking body 4, the auxiliary comb-shaped striking body is formed by arranging a plurality of comb-tooth bodies on the plate hammer body at intervals, wherein the shape of the comb-tooth bodies is in the shape of a quadrangular frustum, the top surface of the quadrangular frustum is a striking outer surface, and the bottom surface of the quadrangular frustum is combined with the plate hammer body into a whole.

According to the normal abrasion failure shape of the common plate hammer, the size of the comb tooth body of the common comb-shaped structure plate hammer is selected as follows: the length direction a is 100-120mm, and the depth direction b is 60-70mm.

The material of the wear-resistant splitting breaking plate hammer is optimized and selected on the premise of slightly increasing the cost on the basis of common high-chromium cast iron, and hypereutectic high-chromium cast iron materials are used. The plate hammer body, the main comb-shaped striking body and the auxiliary comb-shaped striking body are made of hypereutectic high-chromium cast iron.

The area of the bottom surface of the front side and the rear side of the comb tooth body, which are opposite, is smaller than that of the left side and the right side of the comb tooth body, and a distance L is between the front side and the rear side of the comb tooth body, which is 15-20 mm. According to the shape of normal abrasion failure of the conventional plate hammer (shown in fig. 1 and 2), the square-table-shaped striking position of the axe type hammer is designed at the striking position, so that the centralized splitting and crushing force of the plate hammer is increased, the striking area of the plate hammer on crushed materials and the grinding of the plate hammer and a uniform lining plate on the materials are reduced, and the fine powder rate in stone products is reduced.

The working procedure is as follows:

during the high-speed rotation of the rotor, the abrasion-resistant splitting breaking plate hammer strikes the broken materials, so that the materials are broken. In order to reduce excessive fine powder generated by crushing materials of the plate hammer, the plate hammer body is specially designed into a comb-shaped striking body, and comb teeth of the comb-shaped striking body are in a quadrangular frustum shape, so that the fine powder rate of the crushed materials can be reduced, and the yield of required stones is improved. After the comb tooth body part of the general integral comb-shaped plate hammer is worn, the plate hammer is used for turning over, and when the comb tooth body part of the turned over surface is worn, the whole plate hammer is replaced integrally. The two sides of the plate hammer are used, so that the operation cost of the plate hammer is greatly reduced, and the overall production cost of stones is reduced.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several changes and modifications can be made without departing from the general inventive concept, and these should also be regarded as the scope of the utility model.

Claims

1. The utility model provides a breakage-proof splitting breaking board hammer, includes board hammer body (1), its characterized in that: the main comb-shaped striking body (2) is arranged on the striking surface of the plate hammer body (1), and is formed by arranging a plurality of comb-tooth bodies (3) on the plate hammer body at intervals, wherein the comb-tooth bodies are in the shape of a quadrangular frustum of a pyramid, the top surface of the quadrangular frustum of a pyramid is the striking surface, and the bottom surface of the quadrangular frustum of a pyramid is combined with the plate hammer body into a whole.

2. The wear resistant split breaking plate hammer of claim 1, wherein: the symmetrical surface of the striking surface of the hammer body is also provided with an auxiliary comb-shaped striking body (4), the auxiliary comb-shaped striking body is formed by arranging a plurality of comb tooth bodies on the plate hammer body at intervals, wherein the comb tooth bodies are in a quadrangular frustum pyramid shape, the top surface of the quadrangular frustum pyramid is a striking outer surface, and the bottom surface of the quadrangular frustum pyramid is combined with the plate hammer body into a whole.

3. The wear resistant split breaking plate hammer of claim 2, wherein: the plate hammer body, the main comb-shaped striking body and the auxiliary comb-shaped striking body are combined into a whole and are made of hypereutectic high-chromium cast iron.

4. The wear resistant split breaking plate hammer of claim 1, wherein: the area of the bottom surface of the front side surface and the rear side surface which are opposite to each other of the comb tooth body is smaller than the area of the bottom surface of the left side surface and the right side surface which are opposite to each other of the comb tooth body, and a distance L is arranged between the front side surface and the rear side surface and is 15-20 mm.

5. The wear resistant split breaking hammer as claimed in claim 4, wherein: the length a of the top surface of the comb tooth body is 100-120mm, and the depth b is 60-70mm.