Crushing combined structure for crusher

Abstract

The utility model discloses a crushing combined structure for a crusher, and belongs to the technical field of crushing equipment. Comprising a crushing roller capable of being installed on a crusher and an inner gear shell, the crushing roller comprises a crushing shaft and a plurality of outer gear rings sequentially arranged on the crushing shaft in a sleeving mode, and each outer gear ring can be fixed to the crushing shaft through a bolt; the inner gear shell comprises a plurality of arc-shaped inner tooth pieces capable of being installed on the pulverizer, the arc-shaped inner tooth pieces define a cylindrical structure capable of covering the periphery of the outer gear ring, and gaps for materials to pass through are reserved between the outer gear ring and the arc-shaped inner tooth pieces; tooth grooves are formed in the peripheries of the outer tooth rings and the inner sides of the arc-shaped inner tooth pieces, and the multiple outer tooth rings are spirally distributed on the smashing shaft. The smashing combined structure for the smashing machine solves the problems that in the prior art, when part of teeth are damaged, the whole tooth needs to be replaced, and the material smashing effect is not ideal.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of the crushing equipment, especially to a kind of crushing combination structure for pulverizer. BACKGROUND

[0002] The pulverizer is extremely important equipment in many industrial fields and part of civil field, and can crush various blocky, granular and other materials into the required particle size. In the pulverizer equipment, the crushing roller and the gear ring are the key components of the pulverizer, and their performance directly affects the overall crushing effect of the pulverizer.

[0003] At present, the traditional crushing roller and gear ring have many shortcomings in practical application. On the one hand, as the vulnerable parts, the crushing roller and the gear ring need to be replaced when part of the teeth are broken or severely worn, which leads to resource waste and cost increase. On the other hand, the existing crushing roller often has uneven crushing force when crushing materials, which easily leads to inconsistent crushing degree of materials, resulting in that part of the materials cannot reach the expected crushing particle size, affecting the product quality. INVENTION CONTENTS

[0004] The utility model aims at overcoming the shortcomings in the prior art, and provides a crushing combination structure for pulverizer, which solves the problems of whole replacement when part of the teeth are damaged and unsatisfactory material crushing effect in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme that a crushing combination structure for pulverizer includes a crushing roller and an inner tooth shell which can be installed on the pulverizer. The crushing roller includes a crushing shaft and a plurality of outer tooth rings which are sequentially sleeved on the crushing shaft. Each outer tooth ring can be fixed on the crushing shaft by bolts.

[0006] The inner tooth shell includes a plurality of arc-shaped inner tooth pieces which can be installed on the pulverizer. The plurality of arc-shaped inner tooth pieces form a cylindrical structure which can be covered on the outer periphery of the outer tooth ring. A gap for material passing is reserved between the outer tooth ring and the arc-shaped inner tooth piece.

[0007] Among them, the outer periphery of the outer tooth ring and the inner side of the arc-shaped inner tooth piece are provided with tooth grooves, and the plurality of outer tooth rings are spirally distributed on the crushing shaft.

[0008] Optionally, the crushing shaft is provided with a limiting part which can abut against one side of the outer tooth ring, and the crushing shaft is sleeved with a pad disc clamped at the distal end of the plurality of outer tooth rings. The bolt can penetrate the pad disc, the outer tooth ring and be threadedly connected with the limiting part.

[0009] Optionally, annular grooves are formed on both ends of the outer tooth ring along its axial direction.

[0010] Optionally, the tooth groove includes a large inclined surface and a small inclined surface, and the large inclined surface and the small inclined surface are smoothly connected by an arc surface.

[0011] Optionally, the distance between the bottom of the tooth groove and the center axis of the outer gear ring is greater than the radius of the pad.

[0012] Optionally, the outer periphery of the outer gear ring and the tooth grooves on the arc-shaped inner gear plate are distributed in a circular array.

[0013] Compared with the existing technology, the present invention achieves the following beneficial effects: for the crushing roller and inner gear housing, each outer gear ring and arc-shaped inner gear piece can be replaced separately. When the tooth grooves on one outer gear ring or arc-shaped inner gear piece are excessively worn or broken, the entire crushing roller does not need to be replaced. Instead, the corresponding outer gear ring or arc-shaped inner gear piece can be replaced, which can effectively reduce maintenance costs and time. It is also convenient to select different specifications of outer gear rings and arc-shaped inner gear pieces for combination installation according to different crushing requirements, increasing the applicability of the crusher equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic structural diagram of a crushing assembly structure for a crusher in a preferred embodiment of the present invention;

[0016] Figure 2 This is a side structural diagram of a crushing assembly structure for a crusher in a preferred embodiment of the present utility model;

[0017] Figure 3 In the preferred embodiment of the present utility model Figure 2 A schematic diagram of the local enlarged structure at point B;

[0018] Figure 4 In the preferred embodiment of the present utility model Figure 2 Schematic diagram of the cross-sectional structure at AA;

[0019] Among them, 1. crushing shaft; 101. limiting part; 2. outer gear ring; 201. annular groove; 3. bolt; 4. arc-shaped inner gear piece; 5. tooth groove; 501. large inclined surface; 502. small inclined surface; 503. arc surface; 6. pad. DETAILED DESCRIPTION

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show components related to the present invention.

[0021] It should be noted that if the embodiment involves directional indications (such as up, down, bottom, top, etc.), the directional indications are only used to explain the relative position relationship, motion condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications will also change accordingly. The terms "first", "second" are only for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. Unless otherwise specified and limited, the terms "set", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0022] As Figures 1-4 shown, a kind of comminutor is used to crush combination structure, including the comminuting roller and inner tooth shell that can be installed on comminutor, comminuting roller includes comminuting shaft 1 and several outer tooth rings 2 are successively set on comminuting shaft 1, each outer tooth ring 2 can be fixed on comminuting shaft 1 by bolt 3, inner tooth shell includes several arc-shaped inner tooth pieces 4 that can be installed on comminutor, arc-shaped inner tooth piece 4 is provided with the through hole for the bolt 3 of being arranged, arc-shaped inner tooth piece 4 can also be installed on comminutor by bolt 3.In the technical solution, several arc-shaped inner tooth pieces 4 are surrounded to form the cylindrical structure that can be covered in the outer periphery of outer tooth ring 2, and gap for material passing is reserved between outer tooth ring 2 and arc-shaped inner tooth piece 4, and the outer periphery of outer tooth ring 2 and the inner side of arc-shaped inner tooth piece 4 are provided with tooth groove 5.

[0023] Specifically, for comminuting roller and inner tooth shell, each outer tooth ring 2 and arc-shaped inner tooth piece 4 can be replaced separately, when the tooth groove 5 on one of outer tooth ring 2 or arc-shaped inner tooth piece 4 appears excessive wear or breakage, the entire comminuting roller does not need to be replaced, and the corresponding outer tooth ring 2 or arc-shaped inner tooth piece 4 can be replaced. The technical solution can effectively reduce maintenance cost and maintenance time by designing the comminuting roller and the inner tooth shell into a split structure.

[0024] According to different crushing requirements, different specifications of the outer tooth ring 2 and the arc-shaped inner tooth piece 4 can be selected and combined for installation. That is, by selecting the outer tooth ring 2 and the arc-shaped inner tooth piece 4 with different tooth groove 5 densities and sizes, different particle sizes of materials can be crushed to meet different crushing requirements and improve the applicability of the equipment. At the same time, by adjusting the installation position and number of the outer tooth ring 2 on the crushing shaft 1, the crushing length of the crushing roller can be changed, and the crushing effect and processing capacity of the crushing roller can be adjusted. Further, when the crushing roller and the inner tooth shell in the technical solution are installed on the crusher in the prior art, the material can pass through the gap between the outer tooth ring 2 and the arc-shaped inner tooth piece 4 by negative pressure conveying, and the material is crushed in the gap, that is, the outer tooth ring 2 and the arc-shaped inner tooth piece 4 can form a material crushing area for crushing the material.

[0025] Further, as shown in Figure 1 , Figure 4 Further, as shown in , the outer tooth ring 2 is provided with a limiting portion 101 capable of abutting against one side of the outer tooth ring 2, and a pad 6 is sleeved on the crushing shaft 1 and clamped at the distal ends of the plurality of outer tooth rings 2. The distance from the bottom of the tooth groove 5 to the central axis of the outer tooth ring 2 is greater than the radius of the pad 6, so as to avoid the pad 6 affecting the passage of the material. At the same time, the bolt 3 can penetrate the pad 6 and the outer tooth ring 2 and be threadedly connected with the limiting portion 101. That is, each outer tooth ring 2 is provided with a through hole for penetrating the bolt 3. By penetrating the through hole of the outer tooth ring 2 with the bolt 3, the installation position of each outer tooth ring 2 can be determined, and thus the relative position of the tooth grooves 5 on the adjacent two outer tooth rings 2 can be determined. In the technical solution, in order to increase the uniformity of material crushing, the tooth grooves 5 on the outer periphery of the outer tooth ring 2 and the arc-shaped inner tooth piece 4 are arranged in a circumferential array, and the plurality of outer tooth rings 2 are arranged in a spiral on the crushing shaft 1, that is, the tooth grooves 5 on the adjacent two outer tooth rings 2 are arranged in a staggered manner, so as to reduce the gap size of the material passage, reduce the efficiency of the material passage, increase the residence time of the material in the material crushing area, and further improve the material crushing effect and make the material crushing more uniform.

[0026] Figure 4 Further, as shown in , the outer tooth ring 2 is provided with a limiting portion 101 capable of abutting against one side of the outer tooth ring 2, and a pad 6 is sleeved on the crushing shaft 1 and clamped at the distal ends of the plurality of outer tooth rings 2. The distance from the bottom of the tooth groove 5 to the central axis of the outer tooth ring 2 is greater than the radius of the pad 6, so as to avoid the pad 6 affecting the passage of the material. At the same time, the bolt 3 can penetrate the pad 6 and the outer tooth ring 2 and be threadedly connected with the limiting portion 101. That is, each outer tooth ring 2 is provided with a through hole for penetrating the bolt 3. By penetrating the through hole of the outer tooth ring 2 with the bolt 3, the installation position of each outer tooth ring 2 can be determined, and thus the relative position of the tooth grooves 5 on the adjacent two outer tooth rings 2 can be determined. In the technical solution, in order to increase the uniformity of material crushing, the tooth grooves 5 on the outer periphery of the outer tooth ring 2 and the arc-shaped inner tooth piece 4 are arranged in a circumferential array, and the plurality of outer tooth rings 2 are arranged in a spiral on the crushing shaft 1, that is, the tooth grooves 5 on the adjacent two outer tooth rings 2 are arranged in a staggered manner, so as to reduce the gap size of the material passage, reduce the efficiency of the material passage, increase the residence time of the material in the material crushing area, and further improve the material crushing effect and make the material crushing more uniform.

[0027] Figure 3 Further, as shown in Figure 3As shown, the tooth groove 5 comprises a large slope 501 and a small slope 502, the large slope 501 and the small slope 502 on the tooth groove 5 are inclined to the central axis of the outer tooth ring 2 and the arc-shaped inner tooth piece 4, the area of the large slope 501 is larger than that of the small slope 502, but when the tooth groove 5 where the large slope 501 and the small slope 502 are located is directly above the central axis of the outer tooth ring 2 and the arc-shaped inner tooth piece 4, the inclination angle of the small slope 502 of the tooth groove 5 is larger than that of the large slope 501. At the same time, the large slope 501 and the small slope 502 are smoothly connected through the curved surface 503. The design of the large slope 501 and the small slope 502 enables the material to be subjected to different angles of force during the crushing process. When the crushing roller rotates, the material first contacts the small slope 502, and the larger inclination angle of the small slope 502 can quickly guide the material to collide with the curved surface 503. At the same time, the high-speed rotation of the crushing roller enables the material colliding with the curved surface 503 to collide with the tooth groove 5 on the opposite outer tooth ring 2 or arc-shaped inner tooth piece 4 under the guidance of the centrifugal force of the material itself and the large slope 501, that is, the material can collide back and forth in the tooth groove 5 on the outer tooth ring 2 and the arc-shaped inner tooth piece 4 to increase the contact opportunity of the material with the tooth groove 5 and improve the efficiency and effect of crushing.

[0028] In the embodiment, the crushing shaft 1, the outer tooth ring 2, the arc-shaped inner tooth piece 4, and the pad disc 6 are coaxially arranged.

[0029] Working principle: different specifications of the outer tooth ring 2 and the arc-shaped inner tooth piece 4 can be selected according to different crushing requirements and combined and installed on the crusher. Since the crushing roller and the inner tooth shell adopt a split structure, when the tooth groove 5 on one of the outer tooth ring 2 or the arc-shaped inner tooth piece 4 is excessively worn or broken, the entire crushing roller does not need to be replaced, but the corresponding outer tooth ring 2 or arc-shaped inner tooth piece 4 can be replaced. At the same time, the crusher can deliver the material to the material crushing area formed between the outer tooth ring 2 and the arc-shaped inner tooth piece 4 by negative pressure delivery. At the same time, the crusher can also drive the crushing roller to rotate at high speed. When the material passes through the tooth groove 5 on the outer tooth ring 2 and the arc-shaped inner tooth piece 4, the material can be subjected to different angles of force in the crushing process through the large slope 501 and the small slope 502 on the tooth groove 5. While crushing the material, the material can also be guided to collide back and forth in the tooth groove 5 on the outer tooth ring 2 and the arc-shaped inner tooth piece 4 to increase the contact opportunity of the material with the tooth groove 5 and improve the efficiency and effect of crushing. The tooth grooves 5 on the two adjacent outer tooth rings 2 are arranged in a staggered manner, which can reduce the size of the gap through which the material passes, thereby reducing the efficiency of the material passing through and increasing the residence time of the material in the material crushing area, so that the material crushing is more uniform.

[0030] The above is based on the ideal embodiment of the present application, through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content of the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A crushing assembly structure for a crusher, characterized by: The application relates to a crushing roller and an inner tooth shell which can be installed on a crusher, wherein the crushing roller comprises a crushing shaft (1) and a plurality of outer tooth rings (2) which are sequentially sleeved on the crushing shaft (1), each outer tooth ring (2) can be fixed on the crushing shaft (1) through bolts (3); the inner tooth shell comprises a plurality of arc-shaped inner tooth pieces (4) which can be installed on the crusher, the arc-shaped inner tooth pieces (4) are arranged in a cylindrical structure which can be covered outside the outer tooth rings (2), and a gap for material passing is reserved between the outer tooth rings (2) and the arc-shaped inner tooth pieces (4); the outer periphery of the outer tooth ring (2) and the inner side of the arc-shaped inner tooth piece (4) are provided with tooth grooves (5), and the plurality of outer tooth rings (2) are spirally distributed on the crushing shaft (1). The crushing shaft (1) is provided with a limiting portion (101) which can abut against one side of the outer tooth ring (2), and the crushing shaft (1) is sleeved with a pad disc (6) which is clamped at the distal ends of the plurality of outer tooth rings (2), the bolts (3) can penetrate through the pad disc (6), the outer tooth ring (2) and are threadedly connected with the limiting portion (101). The outer tooth ring (2) is provided with annular grooves (201) at both ends in the axial direction.

2. The pulverizing combination structure for a pulverizer according to claim 1, characterized in that: The tooth groove (5) comprises a large slope (501) and a small slope (502), and the large slope (501) and the small slope (502) are smoothly connected through an arc surface (503).

3. The pulverizing combination structure for a pulverizer according to claim 1, characterized in that: The distance between the bottom of the tooth groove (5) and the central axis of the outer tooth ring (2) is greater than the radius of the pad disc (6).

4. The pulverizing combination structure for a pulverizer according to claim 1, characterized in that: The tooth grooves (5) on the outer periphery of the outer tooth ring (2) and the arc-shaped inner tooth piece (4) are arranged in a circumferential array.

5. The pulverizing combination structure for a pulverizer according to claim 2, characterized in that: ​ 6. The pulverizing combination structure for a pulverizer according to claim 1, characterized in that: ​

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