CN-224208120-U - Antiseized material breaker

CN224208120UCN 224208120 UCN224208120 UCN 224208120UCN-224208120-U

Abstract

The utility model relates to the technical field of coal sampling and sample preparing equipment, in particular to an anti-sticking crusher, which comprises a crusher shell, a rotor assembly, a rotor driving device and a pear-shaped hammer head, wherein the rotor assembly is arranged at the central position inside the crusher shell through a bearing and is driven by the rotor driving device, the pear-shaped hammer head is arranged on the rotor assembly and is driven to rotate by the rotor assembly, the pear-shaped hammer head comprises a hammer head main body, the hammer head main body is of a pear-shaped structure, the top of the hammer head main body is designed into a smooth arc shape, the bottom of the hammer head main body is gradually narrowed towards the central line direction of the hammer head main body, the front surface of the hammer head main body is a pear-shaped tangent plane, the tangent plane penetrates from the top to the bottom, and the side profile of the tangent plane is of a double cosine curve form arc shape. The pear-shaped hammer head with unique design effectively solves the problem of hammer head sizing, ensures uniform granularity of the coal sample, ensures that the finally obtained coal sample can more accurately reflect the real quality of coal, has compact integral structure and high stability, and realizes efficient coal block crushing.

Inventors

HAN YIFENG
LI CHUANFU
CHEN RUI
KONG LINGMING
QU WENGUANG

Assignees

济南中意维尔科技有限公司

Dates

Publication Date: 20260508
Application Date: 20250402

Claims (9)

1. A material-sticking-preventing crusher is characterized by comprising a crusher shell, a rotor assembly, a rotor driving device and a pear-shaped hammer head, wherein the rotor assembly is arranged at the central position inside the crusher shell through a bearing and is driven by the rotor driving device, the pear-shaped hammer head is arranged on the rotor assembly and is driven to rotate by the rotor assembly, the pear-shaped hammer head comprises a hammer head main body, the hammer head main body is of a pear-shaped structure, the top of the hammer head main body is designed into a smooth arc shape, the bottom of the hammer head main body is gradually narrowed towards the central line direction of the hammer head main body, the front surface of the hammer head main body is a pear-shaped tangent plane, the tangent plane penetrates from the top to the bottom, and the side profile of the tangent plane is of a double cosine curve form arc shape.
2. The anti-sticking material crusher according to claim 1, wherein the hammer body surface is coated with an anti-sticking coating.
3. The anti-sticking crusher according to claim 1, wherein the angle between the arc of the form of a bicone curve and the centre line of the hammer head body is a chordal angle in the range of 15 ° -60 °.
4. A material-sticking prevention crusher according to claim 3, characterized in that the chord angle is 30 ° or 45 °.
5. The anti-sticking material crusher according to claim 1, wherein the rotor assembly comprises a main shaft, a bearing seat, a driven pulley, a rotor flange, a rotor disc, a spacer bush, an optical axis and a plurality of pear-shaped hammers, wherein the rotor disc, the spacer bush, the optical axis and the pear-shaped hammers are arranged on the rotor, the main shaft is arranged on the bearing seat through a bearing, the bearing seat is fixed on a crusher shell through the rotor flange, one end of the main shaft is fixedly provided with the driven pulley, the other end of the main shaft is fixedly connected with the rotor, the rotor disc is arranged on the rotor, the optical axis is uniformly arranged on the rotor disc and is parallel to the main shaft, and the pear-shaped hammers are sleeved on the optical axis and are fixed on the optical axis through the spacer bush.
6. The antiseized material breaker of claim 5, wherein the hammer head body top is provided with a mounting hole, and a shock absorbing wear resistant sleeve is installed in the mounting hole.
7. The antiseized material breaker of claim 6 wherein the shock absorbing wear resistant jacket is made of polyetheretherketone material.
8. The anti-sticking material crusher according to claim 5, wherein the motor output shaft of the rotor driving device is provided with a driving pulley, which is connected with a driven pulley on the main shaft by a belt.
9. The anti-sticking material crusher according to any one of claims 1-8, wherein the crusher housing is provided with a feed inlet at the top and a discharge outlet at the bottom.

Description

Antiseized material breaker Technical Field The utility model relates to the technical field of coal sampling and sample preparation equipment, in particular to an anti-sticking crusher. Background In the coal sampling and sample preparing process, a crusher bears the key task of crushing large coal blocks into samples meeting the granularity requirement, and the performance of the crusher is directly related to the quality of the coal samples, so that the accuracy of detection results of various indexes of coal is affected. However, when the coal briquette is processed by the crusher on the current market, the problem of sticking exists generally, and the efficient development of coal sampling and sample preparing work is seriously restricted. When the coal pieces are more humid or contain more viscous substances, these substances are very easily attached to the hammer heads of the crusher. When the crusher breaks the viscidity coal cinder, moisture and viscidity composition in the coal cinder can make the coal cinder collide the back with the tup, and partial material adhesion is on the tup, along with the increase of adhesion material, the weight distribution of tup is uneven, produces violent vibrations when leading to the crusher to move, not only influences crushing effect, still probably causes the damage to the mechanical structure of equipment, shortens equipment life. The problem of hammer head sticking of the crusher can also have negative influence on the coal quality detection result, and due to material accumulation and adhesion, the crushing degrees of the coal samples in different batches are inconsistent in the crushing process, so that the collected coal samples cannot accurately represent the real quality of coal, and the detection result is deviated. In addition, the maintenance cost of the existing crusher is also high, frequent material sticking problems lead to the need of frequent shutdown cleaning and maintenance of the crusher, and the labor cost and the maintenance cost of equipment are increased. In summary, the problem of hammer head sticking exists in the existing crusher when wet and sticky coal blocks are processed, so that the efficiency and quality of coal sampling and sample preparing work are seriously affected, and the maintenance cost and the operation risk of equipment are increased. Therefore, there is a need to design a material sticking prevention crusher that can effectively solve the above problems. Disclosure of utility model The utility model aims to overcome the defects of the prior art, and provides a material sticking prevention crusher which aims to solve the problem that hammer materials are easy to adhere when the existing crusher is used for treating wet or sticky coal blocks. The technical scheme adopted for solving the technical problems is as follows: the anti-sticking material crusher comprises a crusher shell, a rotor assembly, a rotor driving device and a pear-shaped hammer head, wherein the rotor assembly is arranged at the center position in the crusher shell and driven by the rotor driving device to rotate at high speed, the pear-shaped hammer head is arranged on the rotor assembly and driven to rotate by the rotor assembly, the pear-shaped hammer head comprises a hammer head main body, the top of the hammer head main body is of a pear-shaped structure, the top of the hammer head main body is designed into a smooth arc shape, the arc-shaped top can effectively disperse impact force when the arc-shaped top contacts with materials, the hammer head is prevented from being damaged due to excessive local stress, the bottom of the hammer head main body is gradually narrowed towards the center line direction of the hammer head main body, the crushing efficiency and the discharging speed of the materials are improved, the retention time of the materials around the hammer head is reduced, the front of the hammer head main body is of a pear-shaped tangent plane, the tangent plane penetrates from the top to the bottom, the tangent plane is of a double-cosine curve form, relative motion is generated between the tangent plane and the materials, and accordingly, the shearing force is applied to the materials, the materials can not be crushed efficiently, and the shortcomings of the materials are difficult to be adhered to the materials due to the effect of falling off in the rotation process are overcome. Furthermore, the anti-sticking coating is coated on the surface of the hammer main body, so that the problem that the hammer is easy to stick when crushing viscous materials is further avoided. Further, the angle between the arc of the bicone curve form and the central line of the hammer head main body is a chord sagging angle, and the chord sagging angle ranges from 15 degrees to 60 degrees. Further, the chord angle is 30 degrees or 45 degrees. The rotor assembly comprises a main shaft, a bearing seat, a driven pulley, a rotor flange, a rotor disc, a spacer