CN218423130U

CN218423130U - Hammer for pulverizer

Info

Publication number: CN218423130U
Application number: CN202221360444.2U
Authority: CN
Inventors: 俞信国; 俞正; 乐其呈; 俞天伦
Original assignee: SHANGHAI SPRING VALLEY MECHANISM MANUFACTURE CO LTD
Current assignee: SHANGHAI SPRING VALLEY MECHANISM MANUFACTURE CO LTD
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2023-02-03
Anticipated expiration: 2032-06-02

Abstract

A hammer for a grinder is characterized in that one end of a hammer parent body (1) is provided with two pin holes (2) which are connected with a rotor of the grinder by two pin rods. The other end is a working end face (3), a groove is formed in the middle of the working end face (3), a rake type scraping blade (4) is welded in the groove, rake teeth (5) are arranged at the front end of the rake type scraping blade (4), the width of the rake teeth (5) is the same as that of the groove, the thickness of the rake teeth (5) is smaller than that of the working end face (3) of the hammer piece matrix (1), the mutual proportion is between 1/2 and 1/5, the paper pulp can be crushed into uniform small pieces, the periphery of the paper pulp is provided with a plush shape without hard marks, and the problem that tailings are crushed unevenly can be solved.

Description

Hammer for pulverizer

Technical Field

The utility model relates to a hammer leaf that rubbing crusher used, especially the hammer leaf who is used in on water droplet type rubbing crusher, vertical rubbing crusher, birotor rubbing crusher, multicavity rubbing crusher, washboard formula rubbing crusher, no sieve rubbing crusher etc..

Background

In the prior art, the hammer of the hammer crusher is in a rectangular sheet shape, the hammer is usually made of common carbon steel as a matrix (1), one end of the hammer is provided with a pin hole (2) and is connected with a rotor of the crusher by a pin rod and the like, the other end of the hammer is a working end face (3), the front end and the side face of the working end face (3) are formed by overlaying of wear-resistant materials such as tungsten carbide and the like, and the whole surface is subjected to carburizing and hardening treatment. The pin hole (2) and the working end face (3) can also be made into symmetrical shapes at both ends, and one end is worn and then replaced and the other end is reused.

However, the hammer sheet in the existing hammer sheet crusher technology can only crush materials, cannot control the shape of the crushed materials to keep a uniform shape, is particularly applied to crushing of raw pulp paper sheets, and has the special requirement that the raw pulp paper sheets are crushed into uniform small sheets one by one, the periphery of the raw pulp paper sheets has plush shapes and no hard marks, and particularly when the tail material of the raw pulp paper sheets is short, the whole tail material suddenly falls into the crusher or is stuck at a feed inlet, so that the product is not uniform. The hammer sheet is not seen after all technical data are reviewed, and the same practical and novel purpose case does not exist.

Disclosure of Invention

The utility model aims at providing a hammer leaf can break into the even platelet of a slice one slice with the magma scraps of paper, and the periphery has the pile form and does not have hard trace to can solve the tailings and smash inhomogeneous problem.

The utility model discloses the purpose is realized through following technical scheme, a hammer leaf that rubbing crusher used, adopt hammer leaf parent (1) that ordinary steel made, the one end of hammer leaf parent (1) is equipped with pinhole (2), be connected with the rotor of rubbing crusher with the round pin stick, the other end of hammer leaf parent (1) is work terminal surface (3), front end and the side build-up welding wear-resistant material tungsten carbide at work terminal surface (3), the surface is carburization hardening treatment, characterized by hammer leaf parent (1) one end is equipped with two pinholes (2), adopt two round pin sticks to be connected with the rotor of rubbing crusher. The other end is a working end face (3), a groove is formed in the middle of the working end face (3), rake type scraping blades (4) are welded in the groove, rake teeth (5) are arranged at the front ends of the rake type scraping blades (4), the width of the rake teeth (5) is the same as that of the groove, the thickness of the rake teeth (5) is smaller than that of the working end face (3) of the hammer piece matrix (1), and the mutual proportion is 1/2-1/5. The front end of the rake type scraping blade (4) is aligned with the front end of the hammer blade matrix (1) and is embedded vertically and then welded, the front edge and the side surface of the rake teeth (5) and the front edge and the side surface of the working end surface (3) of the hammer blade matrix (1) are welded with wear-resistant tungsten carbide in a stacking mode to perform surface treatment, when the scraper type scraping blade crusher is installed and used, the rake type hammer blades on a crusher rotor are installed in four groups, 180-degree pairwise symmetry is achieved, and one rake tooth (5) is staggered.

Adopt above-mentioned utility model's a hammer leaf for rubbing crusher, the one end of hammer leaf parent (1) is equipped with two pinhole (2), prevents that the hammer leaf during operation from rocking, avoids the hammering successively inconsistent for small paper is more even. The other end is a working end face (3), a groove is formed in the middle of the working end face (3), rake type scraping blades (4) are welded in the groove, rake teeth (5) are arranged at the front ends of the rake type scraping blades (4), the groove is formed among the rake teeth (5), the width of the rake teeth (5) is the same, the width of the rake teeth is also the same as that of the groove, the front ends of the rake type scraping blades (4) are aligned with that of the hammer parent body (1), then the rake type scraping blades and the hammer parent body are embedded vertically and then welded, when the scraper type scraping blades are installed and used, the rake type hammer blades on the rotor of the pulverizer are installed in four groups, the rake type scraping blades are symmetrical in pairs at 180 degrees, one rake tooth (5) is staggered, and the widths of the paper sheets are consistent through the technologies. The rotation speed of the hammer is matched with the feeding speed of the paper sheet pressing roller to control the length of the small paper sheets and make the length consistent. The hammer sheet is a crushing form of tearing paper sheets at a high speed, so that the paper pulp sheet can be crushed into uniform small sheets one by one, and the periphery of the paper pulp sheet is in a plush shape and has no hard marks. The thickness of rake teeth (5) is less than the width of the working end face (3) of the hammer blade matrix (1), which is a key technology for generating an intermittent feeding state and is also a technology for solving the problem of uniform tailing crushing, the front angle of the working end face (3) of the hammer blade matrix (1) firstly touches the front edge of a paper sheet in working, the paper sheet breaks out a groove due to small contact surface, then a plurality of rake teeth (5) hammer the paper sheet, at the moment, the paper sheet groove rides on the working end face (3) due to the long working end face (3), the paper sheet is propped, the feeding is started again after the working end face (3) passes, the working states of feeding, stopping, feeding and stopping are formed, and the large pieces of tailing are effectively prevented from being simultaneously fed into the crusher. The ratio of the thickness of the rake teeth (5) to the width of the working end face (3) of the hammer blade parent body (1) is 1/2 to 1/5, when the ratio is more than 1/2, a large amount of tailings can be simultaneously and completely fed into the crusher, and when the ratio is less than 1/5, the service life of the rake teeth (5) is short. The front end of the rake type scraping blade (4) is aligned with the front end of the hammer blade parent body (1), then the rake type scraping blade and the hammer blade parent body are embedded into a vertical mode and then welded, and the front edge and the side face of the rake teeth (5) and the front edge and the side face of the working end face (3) of the hammer blade parent body (1) are both provided with tungsten carbide which is a wear-resistant material in a surfacing mode and subjected to surface treatment, so that the hammer blade is firm and durable.

Drawings

Fig. 1 is a front view of a hammer blade parent body (1) of a hammer blade.

Fig. 2 is a schematic view of a rake blade (4) of a hammer blade.

Fig. 3 is a front view of a hammer blade.

Fig. 4 is a top view of a hammer blade.

FIG. 5 is a three-dimensional view of a hammer blade.

Fig. 6 is an expanded view of the arrangement of the hammer blades, the rake hammer blades are arranged in four groups, are symmetrical in pairs at 180 degrees and are staggered by one rake tooth (5).

Detailed Description

Adopt above-mentioned utility model's a hammer leaf for rubbing crusher, the one end of hammer leaf parent (1) is equipped with two pinhole (2), prevents that the hammer leaf during operation from rocking, avoids the hammering successively inconsistent for small paper is more even. The other end of the crusher is a working end face (3), a groove is formed in the middle of the working end face (3), rake type scraping blades (4) are welded in the groove, rake teeth (5) are arranged at the front ends of the rake type scraping blades (4), the width of the rake teeth (5) is the same, the rake teeth and the groove are also the same, when the crusher is installed and used, the rake type hammer blades on the crusher rotor are installed in four groups, every two of the rake type hammer blades are symmetrical at 180 degrees, and the rake teeth (5) are staggered, so that the width of paper scraps is consistent. The rotation speed of the hammer sheet is matched with the feeding speed of the paper sheet press roller, the length of the small paper sheets is controlled, and the length is consistent. The hammer sheet is a crushing form of tearing paper sheets at a high speed, so that the paper pulp sheet can be crushed into uniform small sheets one by one, and the periphery of the paper pulp sheet is in a plush shape and has no hard marks. The thickness of rake teeth (5) is less than the width of the working end face (3) of the hammer blade matrix (1), which is a key technology for generating an intermittent feeding state and is also a technology for solving the problem of uniform tailing crushing, the front angle of the working end face (3) of the hammer blade matrix (1) firstly touches the front edge of a paper sheet in working, the paper sheet breaks out a groove due to small contact surface, then a plurality of rake teeth (5) hammer the paper sheet, at the moment, the paper sheet groove rides on the working end face (3) due to the long working end face (3), the paper sheet is propped, the feeding is started again after the working end face (3) passes, the working states of feeding, stopping, feeding and stopping are formed, and the large pieces of tailing are effectively prevented from being simultaneously fed into the crusher. The ratio of the thickness of the rake teeth (5) to the width of the working end face (3) of the hammer blade parent body (1) is 1/2 to 1/5, when the ratio is more than 1/2, a large amount of tailings can be simultaneously and completely fed into the crusher, and when the ratio is less than 1/5, the service life of the rake teeth (5) is short. The front end of the rake type scraping blade (4) is aligned with the front end of the hammer blade parent body (1), then the rake type scraping blade and the hammer blade parent body are embedded vertically and then welded, the front edge and the side surface of the rake teeth (5) and the front edge and the side surface of the working end surface (3) of the hammer blade parent body (1) are both welded with wear-resistant material tungsten carbide in a surfacing mode, and then surface treatment is carried out, so that the hammer blade is firm and durable. Through the in-service use the utility model discloses a hammer leaf can break into the even platelet of a slice with the paper pulp piece, and the periphery has the pile form and does not have hard trace to can solve the tailings and smash inhomogeneous problem, the effect is fine.

The above description is only a preferred embodiment of the present invention, and is not a limitation on the present invention in any form, and all the technical matters according to the present invention are simply modified to the above examples, and equally changed or modified, such as the modification of the rake type scraping blade (4) with various irregular scraper patterns, the scraper is changed into a scraping bar, and the shape is changed into a cylinder, a prism, a triangle, etc., or the scheme of using multiple independent scrapers is all within the coverage of the present invention, and any other forms of crushers, such as a water drop type crusher, a vertical crusher, etc., using the technical solution, or installed in six groups and eight groups, etc., also belong to the technical solution of the present invention.

Claims

1. A hammer for a crusher is characterized in that two pin holes (2) are formed in one end of the hammer parent body (1), the hammer is connected with a rotor of the crusher through two pin rods, the other end of the hammer parent body (1) is a working end face (3), tungsten carbide which is a wear-resistant material is welded at the front end and the side face of the working end face (3), and the surface of the hammer is carburized and hardened.

2. A hammer for a crusher as claimed in claim 1, characterized in that the front ends of the rake blades (4) and the front ends of the hammer matrix (1) are aligned and embedded to be vertical and welded, the front edges and the side surfaces of the rake teeth (5) and the front edges and the side surfaces of the working end surfaces (3) of the hammer matrix (1) are deposited with tungsten carbide, which is a wear-resistant material, for surface treatment, and when installed and used, the rake blades on the crusher rotor are installed in four groups, 180 degrees are symmetrical in pairs, and are staggered by one rake tooth (5).