CN213222468U

CN213222468U - Wear-resisting hammer for pulverizer

Info

Publication number: CN213222468U
Application number: CN202020542462.7U
Authority: CN
Inventors: 王刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2021-05-18
Anticipated expiration: 2030-04-13

Abstract

The utility model discloses a wear-resisting type hammer leaf for rubbing crusher, which comprises a body, the body is including assembly district, thermal treatment process district and quenching district, assembly district and thermal treatment process district and quenching district be the integrated shaping, are equipped with the pilot hole in the assembly district, the body passes through the pilot hole and installs on rubbing crusher's rotor, the inboard that the district lies in the sieve piece of quenching. The utility model discloses improved the structure in quenching district, can furthest improve the abrasion resistance of hammer leaf, improved the life more than 50% of hammer leaf, reduced because of the hammer leaf damages the frequency of changing, effective reduction in production cost, the utility model discloses can improve the crushing effect of quenching district to the strike and the crushing dynamics of material, improvement material.

Description

Wear-resisting hammer for pulverizer

Technical Field

The utility model relates to a rubbing crusher spare part, a wear-resisting type hammer leaf for rubbing crusher specifically says so.

Background

The hammer mill is the most widely used one at present, the universality is good, generally speaking, the hammer is hinged with the rotor, the structure of the hammer is composed of three parts, namely a feeding mechanism, a milling chamber (the rotor, the hammer, a sieve sheet and a toothed plate) and a discharging part (a fan, a material collecting cylinder and a dust collecting cloth bag). After the pulverized material is extracted from the sieve holes, the pulverizer with a fan still needs to separate the air in the mixed air flow from the pulverized material through a powder collecting device (such as a material collecting cylinder, a dust collecting cloth bag, etc.).

Most of the existing hammer sheets are of square structures, and common structures of the existing hammer sheets are shown in the accompanying

drawings

2 and 3 of the specification, and the two structures have the following defects:

1. because the quenching area is small, the quenching area can be quickly ground off after the material is crushed, and the body of the material can be damaged, so that the service life of the material is short, the replacement frequency is high, and the production cost is increased;

2. because the space gap between the quenching area and the sieve sheet is larger after the quenching area is abraded, the phenomena of material blockage and circular suspension motion in the crushing chamber are easy to occur, and the quenching area is abraded more probably due to the material blockage and the circular suspension motion, so that the service life of the quenching area is shortened;

3. the shape and the weight of the head part and the tail part of the existing hammer piece structure are equivalent, and in the rotating process, the striking and crushing force to the materials is small, so that the crushing effect of the materials is poor.

Disclosure of Invention

The utility model aims at providing a wear-resisting type hammer leaf for rubbing crusher.

In order to achieve the above purpose, the technical scheme of the utility model is that: the utility model provides a wear-resisting type hammer leaf for rubbing crusher, includes the body, the body includes assembly area, thermal treatment process area and quenching district, assembly area and thermal treatment process area and quenching district are integrated into one piece, are equipped with the pilot hole in the assembly area, the body passes through the pilot hole and installs on rubbing crusher's rotor, the inboard that the district lies in the sieve piece quenches.

Preferably, the left end of the assembly area is semicircular, the right end of the heat treatment process area is semicircular, and the two semicircular areas are equal.

Preferably, one or more heat treatment process holes are not arranged or are arranged in the heat treatment process area according to the requirement of the material of the body.

Preferably, the quenching area is of a fan-shaped structure as a whole, the right end face of the quenching area is of an arc-shaped surface structure, and the radian of the arc-shaped surface structure is matched with the radian of the inner arc surface of the screen piece.

Preferably, when the bodies are subjected to heat treatment, the bodies are subjected to one-by-two simultaneous treatment, namely, the assembly area of the first group of bodies is overlapped with the heat treatment process area of the second group of bodies, the quenching area is just exposed, and a local quenching process is performed on the quenching area.

Preferably, the body, regardless of the material used, is locally quenched, i.e. only the quenching zone is quenched.

When the body is made of common steel, one heat treatment process hole can be arranged, and the inner diameter of the heat treatment process hole is smaller than or equal to that of the assembly hole.

When the body is made of common steel, the number of the heat treatment process holes can be two, and the inner diameters of the two heat treatment process holes are smaller than that of the assembling hole.

When the body is made of high-strength alloy steel, the heat treatment process area is not provided with heat treatment process holes.

Due to the adoption of the technical scheme, the beneficial effects of the utility model are that:

1. the area of the quenching area of the utility model is increased to more than two times of the quenching area of the existing hammer piece structure, namely, the abrasion area of the material to the hammer piece in the material crushing process is increased, the abrasion resistance of the hammer piece can be improved to the maximum extent, the service life of the hammer piece is prolonged by more than 50 percent, the frequency of replacement caused by damage of the hammer piece is reduced, and the production cost is effectively reduced;

2. the radian of the cambered surface structure of the quenching area of the utility model is matched with the radian of the inner cambered surface of the sieve sheet, the gap between the two is small, the phenomena of material blockage and suspension movement rarely occur, the abrasion of the quenching area is small, the service life of the quenching area is prolonged, and the working efficiency is greatly improved;

3. the utility model discloses the weight of head (quenching district) is greater than the weight of afterbody (assembly district), at rotatory in-process, can improve the striking and the crushing dynamics of quenching district to the material, improves the crushing effect of material.

To sum up, the utility model discloses improved the structure in quenching district, can furthest improve the abrasion resistance of hammer leaf, improved more than 50% of the life of hammer leaf, reduced because of the hammer leaf damages the frequency of changing, effective reduction in production cost, the utility model discloses can improve the striking and the crushing dynamics of quenching district to the material, improve the crushing effect of material.

Drawings

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

FIG. 1 is a schematic view of the structure of the present invention in which only one thermal processing hole is provided and the hole diameter is smaller than the hole diameter of the assembly hole.

Fig. 2 is a schematic diagram of a first prior art hammer blade structure in the prior art.

Fig. 3 is a schematic diagram of a second prior art hammer blade structure.

FIG. 4 is a view showing a state in the heat treatment of the present invention.

Fig. 5 is a view showing a state in which the first conventional hammer piece structure of the related art is heat-treated.

Fig. 6 is a view showing a state in which a second conventional hammer piece structure of the prior art is heat-treated.

Fig. 7 is an isometric view of the present invention.

Fig. 8 is a schematic view of the installation state of the first and second existing hammer blade structures in the pulverizer of the present invention.

FIG. 9 is a schematic view of the structure of the present invention in which only one hole is formed for heat treatment and the diameter of the hole is equal to the diameter of the assembly hole.

FIG. 10 is a schematic view of the structure of the present invention in which two heat treatment process holes are formed and the hole diameter is smaller than the hole diameter of the assembly hole.

FIG. 11 is a schematic view of the structure of the present invention without the thermal treatment process holes.

In the figure: 1. the device comprises a body, 11, an assembly area, 12, a heat treatment process area, 13, a quenching area, 14, an assembly hole, 15, a heat treatment process hole, 16, a cambered surface structure, 2, a crusher, 3, a rotor, 4, a sieve sheet, 5, a first quenching area, 6 and a second quenching area.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example one

As shown in fig. 1, the utility model relates to a wear-resisting type hammer leaf for rubbing crusher, including body 1, body 1 includes assembly area 11, heat treatment process area 12 and quenching district 13, assembly area 11 and heat treatment process area 12 and quenching district 13 are the integrated into one piece, are equipped with pilot hole 14 in assembly area 11, body 1 passes through pilot hole 14 to be installed on rubbing crusher 2's rotor 3, quenching district 13 is located the inboard of sieve piece 4.

The left end of the assembly area 11 is semicircular, the right end of the heat treatment process area 12 is semicircular, and the two semicircular areas are equal.

In this embodiment, the heat treatment process area 12 is provided with a heat treatment process hole 15 having an inner diameter smaller than that of the assembly hole.

The quenching area 13 is integrally of a fan-shaped structure, the right end face of the quenching area is of an arc-shaped surface structure 16, and the radian of the arc-shaped surface structure 16 is matched with the radian of the inner arc surface of the screen sheet 4.

When the bodies 1 are subjected to heat treatment, the bodies 1 are subjected to one-to-two simultaneous treatment, namely the assembly area 11 of the first group of bodies 1 is overlapped with the heat treatment process area 12 of the second group of bodies 1, the quenching area 13 is just exposed, and a local quenching process is performed on the quenching area 13.

No matter what material is adopted, the body 1 is locally quenched, namely only the quenching area 13 is used for quenching.

As shown in fig. 2 and fig. 3, the area of the first quenching area 5 in the first hammer piece structure and the area of the second quenching area 6 in the second hammer piece structure are smaller than the area of the middle quenching area 13, i.e. when the material is worn and quenched, the wear-resistant area of the middle quenching area 13 is larger than the wear-resistant area of the first quenching area 5 in the first hammer piece structure and the second quenching area 6 in the second hammer piece structure.

As shown in fig. 4, 5 and 6, when performing heat treatment, the arrangement of the present invention is that the assembly area 11 of the first group of bodies 1 coincides with the heat treatment process area 12 of the second group of bodies 1, and just exposes the quenching area 13, compared with the arrangement of the first type of hammer structure connected end to end and the arrangement of the second type of hammer structure crossed, the arrangement is simpler and more convenient to operate.

As shown in fig. 7, the second quenching district 6 is installed on rotor 3 back in first quenching district 5 and the first hammer leaf structure in the first hammer leaf structure, and the two is greater than with the space between sieve piece 4 the utility model discloses in quench the space between district 13 and the sieve piece 4, cause the material to block up easily to the degree of wear that causes first quenching district 5 and second quenching district 6 is greater than quenching district 13, causes its life shorter, and the change frequency is higher, is unfavorable for saving the cost.

Additionally, because the utility model discloses the area increase of quenching district 13, its weight also increases, compares in assembly area 11, and the head is heavy tail is light, is favorable to improving the utility model discloses body 1's striking and crushing dynamics, and because the area of first quenching district 5 and the second quenching district 6 is less, even the weight of first hammer leaf structure and second hammer leaf structure head and the tail differs not much after quenching, and it strikes and crushing dynamics also can not obviously improve.

Example two

As shown in fig. 9, when the body 1 is made of a general steel material, the heat treatment process hole 15 has an inner diameter equal to that of the fitting hole 14.

EXAMPLE III

As shown in fig. 10, when the body 1 is made of a common steel material, there are two heat treatment process holes 15, and the inner diameters of the two heat treatment process holes 15 are smaller than the inner diameter of the fitting hole 14.

Example four

As shown in fig. 11, when the body 1 is made of high-strength alloy steel, the heat treatment process zone 12 is not provided with the heat treatment process holes 15.

The foregoing is a detailed description of the present invention in connection with specific preferred embodiments, and it is not to be construed that the specific embodiments of the present invention are limited to those descriptions. To those skilled in the art to which the invention pertains, without departing from the spirit of the invention, several simple deductions or substitutions can be made, all of which should be considered as belonging to the scope of patent protection defined by the claims filed with the invention.

Claims

1. The utility model provides a wear-resisting type hammer leaf for rubbing crusher which characterized in that: including body (1), body (1) is including assembly area (11), heat treatment process area (12) and quenching district (13), assembly area (11) and heat treatment process area (12) and quenching district (13) are the integrated into one piece, are equipped with pilot hole (14) in assembly area (11), body (1) is installed on rotor (3) of rubbing crusher (2) through pilot hole (14), quenching district (13) is located the inboard of sieve piece (4).

2. A wear-resistant hammer for crushers as set forth in claim 1, wherein: the left end of the assembly area (11) is semicircular, the right end of the heat treatment process area (12) is semicircular, and the two semicircular areas are equal.

3. A wear-resistant hammer for crushers as set forth in claim 1, wherein: one or more heat treatment process holes (15) are not arranged or are arranged in the heat treatment process area (12) according to the requirements of the material of the body (1).

4. A wear-resistant hammer for crushers as set forth in claim 1, wherein: the quenching area (13) is integrally of a fan-shaped structure, the right end face of the quenching area is of an arc surface structure (16), and the radian of the arc surface structure (16) is matched with the radian of the inner arc surface of the screen sheet (4).