CN109926185B

CN109926185B - A two-stage crushing roller device for breaker

Info

Publication number: CN109926185B
Application number: CN201910305780.3A
Authority: CN
Inventors: 柳小桐; 刘茵
Original assignee: Taiyuan Xintianli Electromechanical Technology Co ltd
Current assignee: Taiyuan Xintianli Electromechanical Technology Co ltd
Priority date: 2019-04-16
Filing date: 2019-04-16
Publication date: 2023-10-20
Anticipated expiration: 2039-04-16
Also published as: CN109926185A

Abstract

The invention belongs to the technical field of mine tailings, and particularly relates to a secondary crushing roller device for a crusher. The device comprises a first-stage crushing roller consisting of a high-speed crushing roller, a low-speed crushing roller, a high-power driving motor, a low-power driving motor, a speed reducer I and a speed reducer II; the high-power driving motor and the low-power driving motor are assembled into a whole in a key connection mode, the high-speed crushing roller and the low-speed crushing roller are respectively arranged on the base through bearing seats, and the speed reducer II is connected with the low-speed crushing roller through a coupler; one end of the high-speed crushing roller is connected with the speed reducer I through a coupler; the high-speed crushing machine further comprises a chord tooth crushing roller, one end of the chord tooth crushing roller is fixed on the base through a bearing seat, and a rotating shaft at the other end of the chord tooth crushing roller is connected with the other end of the high-speed crushing roller through a sprocket chain. The invention ensures the breaking granularity and meets the different granularity requirements of users.

Description

A two-stage crushing roller device for breaker

Technical Field

The invention belongs to the technical field of mine tailings, and particularly relates to a secondary crushing roller device for a crusher.

Background

The smaller the treatment block size of various mine tailing powder is, the more favorable for the reutilization of the tailings.

The process flow is as follows: filter press-scraper conveyor (or belt conveyor) -filter cake crusher-belt conveyor-ore bin. The filter cake prepared by the filter press still has higher water content, large viscosity, large volume and large one-time discharge amount. The crushing treatment is easy to block, and especially under the condition of smaller crushing granularity, the damage to equipment parts is easy to cause, and the labor intensity of workers is increased. In order to avoid blockage, the granularity of the treatment of the existing crusher is larger, which causes difficulty in recycling the tailings and increases the cost of the tailings for recycling.

The crushing effect of the filter cake crusher and the size of the material granularity depend on the tooth shape, arrangement mode and the number of the crushing rollers, and the key component of the filter cake crusher is the crushing rollers. The single-stage double-roller structure is commonly adopted by the prior crusher, but the problems of unsmooth discharge and unsatisfactory crushing granularity exist in the process of small crushing granularity.

Disclosure of Invention

The invention aims to provide a secondary crushing roller device for a crusher, aiming at the problems of unsmooth discharge, unsatisfactory crushing granularity and easy damage of equipment.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:

a secondary crushing roller device for a crusher comprises a primary crushing roller consisting of a high-speed crushing roller, a low-speed crushing roller, a high-power driving motor, a low-power driving motor, a speed reducer I and a speed reducer II; the high-power driving motor and the low-power driving motor are assembled into a whole in a key connection mode, the high-speed crushing roller and the low-speed crushing roller are respectively arranged on the base through bearing seats, and the speed reducer II is connected with the low-speed crushing roller through a coupler; one end of the high-speed crushing roller is connected with the speed reducer I through a coupler; wherein: the high-speed crushing machine further comprises a chord tooth crushing roller, one end of the chord tooth crushing roller is fixed on the base through a bearing seat, and a rotating shaft at the other end of the chord tooth crushing roller is connected with the other end of the high-speed crushing roller through a sprocket chain.

Further, the chord tooth crushing roller consists of a star wheel type striking tooth piece, at least two chord-shaped rods and a rotating shaft; the string-shaped rods are symmetrically and fixedly arranged on the star-wheel type striking teeth through mounting holes formed in the star-wheel type striking teeth, the star-wheel type striking teeth are fixedly arranged on the rotating shaft, and the spaces between the star-wheel type striking teeth and the star-wheel type striking teeth are equal.

Further, a sprocket cover is also arranged on the sprocket chain.

Further, the distance between the star wheel type striking teeth is determined according to the requirement of crushing granularity.

Compared with the prior art, the invention has the following advantages:

firstly, can better break up the tailing powder to can obtain expected granularity through adjusting the rotational speed of second-stage crushing roller, the arrangement of string shape stick and the profile of tooth and the tooth interval of star-wheel formula striking tooth, satisfy the different demands of low reaches user.

The second stage crushing roller and the second stage crushing roller adopt a chord tooth combined structure, and the star wheel type striking tooth sheet and the chord rod are combined into a whole. When the chord teeth are combined with the crushing roller to rotate, the mineral powder can be ensured to be beaten and crushed simultaneously in the horizontal and vertical directions.

Thirdly, because the novel design of the secondary crushing is adopted, the space between the striking teeth of the primary crushing roller is increased, so that the smooth discharge of materials is ensured, wet and sticky mineral powder can be well scattered, and meanwhile, the accumulation and overflow of the materials are effectively improved.

Drawings

Fig. 1 is a schematic structural view of the present invention.

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

Fig. 3 is a schematic view of the structure of the pulley cover of the present invention.

Fig. 4 is a schematic structural view of the chord tooth crushing roller of the present invention.

Fig. 5 is a front view and a side view of a chordal breaker roll in accordance with the present invention.

Detailed Description

As shown in fig. 1, 2 and 3, the secondary crushing roller device for a crusher according to the present embodiment includes a primary crushing roller composed of a high-speed crushing roller 1, a low-speed crushing roller 2, a high-power driving motor 3, a low-power driving motor 4, a reducer i 5 and a reducer ii 6; the high-power driving motor 3, the low-power driving motor 4, the speed reducer I5 and the speed reducer II 6 are assembled into a whole in a key connection mode, the high-speed crushing roller 1 and the low-speed crushing roller 2 are respectively arranged on the base through bearing seats, and the speed reducer II 6 is connected with the low-speed crushing roller through a coupler; one end of the high-speed crushing roller 1 is connected with a speed reducer I5 through a coupler; wherein: the high-speed crushing machine further comprises a chord tooth crushing roller 7, one end of the chord tooth crushing roller 7 is fixed on the base through a bearing seat, and a rotating shaft 7-3 at the other end of the chord tooth crushing roller 7 is connected with the other end of the high-speed crushing roller 1 through a sprocket chain 8. The sprocket wheel cover 9 is also arranged on the sprocket wheel chain 8.

As shown in fig. 4 and 5, the chord tooth crushing roller 7 consists of a star wheel type striking tooth piece 7-1, at least two chord-shaped rods 7-2 and a rotating shaft 7-3; the string-shaped rods 7-2 are symmetrically and fixedly arranged on the star-wheel type striking teeth 7-1 through mounting holes 7-1-1 formed in the star-wheel type striking teeth 7-1, the plurality of star-wheel type striking teeth 7-1 are fixedly arranged on the rotating shaft 7-3, and the space between the star-wheel type striking teeth 7-1 and the star-wheel type striking teeth 7-1 is equal. The space between the star wheel type striking teeth 7-1 is determined according to the requirement of crushing granularity.

The working process of the invention comprises the following steps:

the high-speed crushing roller and the chord tooth crushing roller are driven by a low-power driving motor in a chain transmission mode to rotate simultaneously, the high-speed crushing roller and the low-speed crushing roller rotate oppositely at the same time, materials are sheared and crushed and then discharged onto the chord tooth crushing roller, and the materials are scattered and crushed by the chord tooth crushing roller in a high-speed rotation mode and then fall into a mineral bin.

The crushing roller device adopts a two-stage three-roller structure, increases the first-stage crushing, scientifically and reasonably configures the arrangement of star wheel type striking teeth, increases the striking teeth spacing of the first-stage crushing roller, and ensures that the conditions of smooth material discharge and accumulation blocking do not occur any more. The second-stage chord tooth crushing roller adopts a single-roller structural form (chord-shaped rods and striking teeth), can simultaneously perform high-efficiency crushing along the horizontal and vertical directions during rotary crushing, ensures the crushing granularity, can obtain various expected granularities by adjusting the rotating speed, the arrangement quantity of the chord-shaped rods and the spacing of the star wheel striking teeth, and meets the different granularity requirements of users.

Claims

1. A secondary crushing roller device for a crusher comprises a primary crushing roller consisting of a high-speed crushing roller (1), a low-speed crushing roller (2), a high-power driving motor (3), a low-power driving motor (4), a speed reducer I (5) and a speed reducer II (6); the high-power driving motor (3), the low-power driving motor (4), the speed reducer I (5) and the speed reducer II (6) are assembled into a whole in a key connection mode, the high-speed crushing roller (1) and the low-speed crushing roller (2) are respectively arranged on the base through bearing seats, and the speed reducer II (6) is connected with the low-speed crushing roller through a coupler; one end of the high-speed crushing roller (1) is connected with a speed reducer I (5) through a coupler; the method is characterized in that: the high-speed crushing machine further comprises a chord tooth crushing roller (7), wherein one end of the chord tooth crushing roller (7) is fixed on the base through a bearing seat, and a rotating shaft (7-3) at the other end of the chord tooth crushing roller (7) is connected with the other end of the high-speed crushing roller (1) through a sprocket chain (8);

the chord tooth crushing roller (7) consists of a star wheel type striking tooth piece (7-1), at least two chord-shaped rods (7-2) and a rotating shaft (7-3); the string-shaped rods (7-2) are symmetrically and fixedly arranged on the star-wheel type striking teeth (7-1) through mounting holes (7-1-1) formed in the star-wheel type striking teeth (7-1), a plurality of the star-wheel type striking teeth (7-1) are fixedly arranged on the rotating shaft (7-3), and the space between the star-wheel type striking teeth (7-1) and the star-wheel type striking teeth (7-1) is equal;

the sprocket wheel (8) is also provided with a sprocket wheel cover (9).

2. A secondary crushing roller device for a crusher according to claim 1, characterized in that: the space between the star wheel type striking teeth sheets (7-1) is determined according to the requirement of crushing granularity.