CN103055996A

CN103055996A - Crushing device of coal crusher

Info

Publication number: CN103055996A
Application number: CN2013100405499A
Authority: CN
Inventors: 李明科
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-02-02
Filing date: 2013-02-02
Publication date: 2013-04-24

Abstract

The invention discloses a crushing device of a coal crusher. The crushing device comprises an upper shell and a lower shell, wherein an active drive wheel disc and a passive drive wheel disc are arranged on the upper shell and are respectively connected with a crushing roller, the crushing roller comprises a cylindrical roller main body, a drive pivot is arranged at the center of the roller main body, and a gear hob array consisting of gear hobs is arranged on the outer wall of the roller main body. A pair of crushing rollers is used for replacing the existing blades, and because the inverted trapezoidal gear hobs are arranged on the outer surface of the crushing roller, the crushing device of the coal crusher is capable of fully crushing coal, and also preventing relative slipping of the crushing roller. Moreover, the crushing roller is made of cast iron integrally, and has the advantages of high strength and low cost.

Description

Crushing device of coal crusher

Technical Field

The invention relates to coal mining equipment, in particular to a crushing device of a coal crusher.

Background

The coal crusher is also called a double-stage crusher, belongs to high-efficiency fine crushing equipment and mainly aims at the crushing problem of coal with high moisture content. The crushing cavity of the existing coal crusher mostly adopts a blade type crushing mode, blades need to be replaced regularly, and the use cost is high.

Disclosure of Invention

The invention mainly solves the technical problems in the prior art, and provides a crushing device of a coal crusher.

The technical problem of the invention is mainly solved by the following technical scheme:

the crushing device of the coal crusher comprises an upper casing and a lower casing, wherein an active driving wheel disc and a passive driving wheel disc are arranged on the upper casing, the active driving wheel disc and the passive driving wheel disc are respectively connected with a crushing roller, the crushing roller comprises a cylindrical roller main body, a driving pivot is arranged at the center of the roller main body, and a hobbing array consisting of hobbing is arranged on the outer side wall of the roller main body.

As a preferred embodiment of the invention, the hobbing is in an inverted trapezoid shape.

As a preferred embodiment of the invention, the roller main body, the driving pivot and the hobbing are integrally formed by cast iron.

The crushing device of the coal crusher utilizes the pair of crushing rollers to replace the existing blades, and the outer surface of each crushing roller is provided with the inverted trapezoidal hobbing, so that coal blocks can be fully crushed, and the relative slip of the crushing rollers can be prevented. In addition, the crushing roller is integrally formed by cast iron, so that the strength is high and the cost is low.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic perspective view of a crushing device of a coal crusher according to the present invention;

FIG. 2 is an exploded perspective view of the crushing device of the coal crusher of FIG. 1;

FIG. 3 is a schematic perspective view of a crushing drum of the crushing device of the coal crusher of FIG. 1;

FIG. 4 is an enlarged detail view of area A of the crushing roller of FIG. 3;

wherein,

1. a crushing device; 2. an upper housing; 22. a passively driven wheel disc; 3. a lower housing; 4. a crushing roller; 41. a drum body; 411. hobbing; 42. the pivot is actuated.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention will be more clearly and clearly defined.

As shown in fig. 1 to 4, a crushing device 1 of a coal crusher of the present invention comprises an upper casing 2 and a lower casing 3, wherein an active driving wheel disc 21 and a passive driving wheel disc 22 are disposed on the upper casing 2, the active driving wheel disc 21 and the passive driving wheel disc 22 are respectively connected to a crushing roller 4, the crushing roller 4 comprises a cylindrical roller body 41, a driving pivot 42 is disposed at the center of the roller body 41, and a hobbing array consisting of hobbing teeth 411 is disposed on the outer side wall of the roller body 41.

The hobbing 411 is in the shape of an inverted trapezoid.

The drum main body 41, the driving pivot 42 and the hob 411 are integrally formed of cast iron.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a coal breaker's breaker, characterized in that, coal breaker's breaker (1) contain an upper casing (2) and a lower casing (3), upper casing (2) on be equipped with an initiative driving wheel dish (21) and a passive driving wheel dish (22), initiative driving wheel dish (21) and passive driving wheel dish (22) be connected with a crushing roller (4) respectively, crushing roller (4) contain a cylindric cylinder main part (41), the center of cylinder main part (41) be equipped with a drive pivot (42), the lateral wall of cylinder main part (41) on be equipped with the hobbing array of constituteing by hobbing (411).

2. The crushing device of a coal crusher according to claim 1, wherein the hobbing (411) is in an inverted trapezoid shape.

3. The crushing device of a coal crusher according to claim 2, wherein the roller body (41), the driving pivot (42) and the hobbing (411) are integrally formed of cast iron.