Crusher

Abstract

The utility model provides a crusher, and relates to the technical field of crushing equipment, the crusher comprises an impact plate and a crushing roller which are matched for use, and the distance between the impact plate and the crushing roller is adjustable; the crushing roller includes: a rotor; the roller is in transmission connection with the rotor; the arc-shaped toothed plate is detachably connected with the roller; the reinforcing mechanism is used for enhancing the firmness degree of connection between the toothed plate and the roller; wherein the plurality of toothed plates can be encircled to form a circular structure with continuous edges, and the circular structure is encircled on the circumferential side surface of the roller; a plurality of crushing teeth are uniformly distributed on the outer side of the toothed plate, the crushing teeth comprise high teeth and low teeth, and at least one low tooth is arranged between any two adjacent high teeth. The crushing teeth on the toothed plate are arranged at different heights in a discontinuous manner, so that materials with different sizes are fed and grabbed more smoothly when entering the crushing work pair, and the condition that large materials cannot enter and small materials cannot be crushed is not easy to occur. The crushing work pair comprises crushing teeth and a structure matched with the crushing teeth to crush materials.

Description

Technical Field

[0001] This utility model relates to the field of crushing equipment technology, and in particular to a crusher. Background Technology

[0002] The teeth on the crushing rollers of existing crushers are of uniform height, while the materials to be crushed (such as coal) are usually of uneven size. This leads to problems with feeding and gripping when the material enters the crushing working section (large materials cannot enter, and small materials are not crushed), which needs to be improved. Utility Model Content

[0003] In response to the above situation, this utility model provides a crusher that aims to solve the technical problem that the teeth on the crushing rollers of existing crushers are of uniform height, while the materials to be crushed (such as coal) are usually of uneven size, which leads to the problem of uneven feeding and gripping of materials when they enter the crushing working part.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] This utility model provides a crusher, including a primary crushing working pair, which includes a counter-impact plate and a crushing roller used in conjunction, the distance between the counter-impact plate and the crushing roller being adjustable; the crushing roller includes:

[0006] Rotor;

[0007] The roller is connected to the rotor drive.

[0008] The arc-shaped toothed plate is detachably connected to the roller;

[0009] A reinforcement mechanism is used to enhance the strength of the connection between the toothed plate and the roller;

[0010] Multiple toothed plates can be joined together to form a circular structure with continuous edges, which surrounds the circumferential side of the roller; multiple breaking teeth are evenly distributed on the outer side of the toothed plates, including high teeth and low teeth, with at least one low tooth between any two adjacent high teeth.

[0011] In some embodiments of this utility model, a secondary crushing working unit is also included, in which the material is crushed successively by the primary crushing working unit and the secondary crushing working unit.

[0012] In some embodiments of this invention, the distance between the impact plate and the crushing roller is adjusted by a hydraulic cylinder.

[0013] In some embodiments of this utility model, the reinforcement mechanism includes:

[0014] The first insert is attached to the inside of the toothed plate;

[0015] The second insert is detachably connected to the roller and the toothed plate; a plurality of second inserts are arranged around and spaced apart around the roller;

[0016] The first insert is pressed and fixed onto the roller by two adjacent second inserts.

[0017] In some embodiments of this utility model, the first insert has a first inclined surface on its opposite sides, and the second insert has a second inclined surface on its opposite sides that cooperates with the first inclined surface.

[0018] In some embodiments of this utility model, the toothed plate has a toothed plate fixing countersunk hole; the first insert has a connecting hole; the connecting hole can be aligned with the toothed plate fixing countersunk hole.

[0019] In some embodiments of this utility model, the first insert also has an insert fixing hole, which is used to fix the first insert to the roller by bolts.

[0020] In some embodiments of this invention, the first insert also has a plug welding hole.

[0021] In some embodiments of this invention, the edge of the first insert is spot-welded to the roller.

[0022] In some embodiments of this utility model, two end plates are sleeved on the rotor, and the rotor can drive the end plates to rotate; two locking rings are threadedly connected to the rotor.

[0023] The inner wall of the roller has a protrusion, the two ends of which are close to the openings at both ends of the roller; the locking ring is used to make the edges of the two end plates facing each other in close contact with the ends of the protrusion.

[0024] The embodiments of this utility model have at least the following advantages or beneficial effects:

[0025] 1. By using an intermittent, high-low arrangement of the crushing teeth on the toothed plate, the feeding and gripping of materials of varying sizes into the crushing working pair is smoother, reducing the likelihood of large materials being unable to enter or small materials not being crushed. The crushing working pair refers to the crushing teeth and the structure that works in conjunction with them to crush materials.

[0026] 2. By making the distance between the impact plate and the crushing roller adjustable, users are given more autonomy. Users can adjust the distance between the impact plate and the crushing roller as needed, which complements the intermittent high and low arrangement of the crushing teeth.

[0027] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a structural diagram of a crusher, with arrows indicating the direction of rotation.

[0030] Figure 2 This is a schematic diagram of the crushing roller structure;

[0031] Figure 3 for Figure 2 The left view shows the arrows indicating the direction of rotor rotation.

[0032] Figure 4 (a) is a schematic diagram of the toothed plate, and (b) is... Figure 3 The left view, (c) is Figure 3 Top view;

[0033] Figure 5 (d) is a schematic diagram of the structure of the first insert, and (e) is... Figure 4 The left view, (f) is Figure 4 Top view;

[0034] Figure 6 (g) is a schematic diagram of the end plate, and (h) is a cross-sectional view of (g) along the AA direction.

[0035] icon:

[0036] 1-Rotor, 11-End plate, 12-Locking ring,

[0037] 2-roller, 21-convex part,

[0038] 3-tooth plate, 31-breaking tooth, 311-high tooth, 312-low tooth, 32-first insert, 321-first inclined surface, 33-tooth plate fixing countersunk hole

[0039] 4-Second insert, 41-Second bevel, 42-Insert fixing hole, 43-Connecting hole, 44-Plug welding hole

[0040] 5-Crusher, 6-Primary crushing working pair, 7-Secondary crushing working pair, 8-Impact plate. Detailed Implementation

[0041] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention.

[0042] In the description of the embodiments of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0044] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0045] The embodiments of this utility model will be described in detail below.

[0046] Example

[0047] See Figures 1-6 This embodiment provides a crusher 5, which includes a primary crushing unit 6 and a secondary crushing unit 7 arranged vertically within a casing. Materials are crushed sequentially by the primary crushing unit 6 and the secondary crushing unit 7, achieving multi-stage crushing. This embodiment mainly describes the primary crushing unit 6; the secondary crushing unit 7 is configured similarly to the primary crushing unit 6.

[0048] The primary crushing assembly 6 includes a counter-impact plate 8 and a crushing roller for coordinated use. The distance between the counter-impact plate 8 and the crushing roller is adjustable to improve the applicability of the equipment. The adjustable distance between the counter-impact plate and the crushing roller can be achieved, for example, through a hydraulic cylinder (not shown in the figure) connected to the counter-impact plate.

[0049] The crushing roller includes a rotor 1, a roller 2, a toothed plate 3, and a reinforcing mechanism.

[0050] Two end plates 11 are fitted onto the rotor 1, and the end plates 11 are connected to the rotor 1 by a key so that the rotor 1 drives the end plates 11 to rotate. Two locking rings 12 are threaded onto the rotor 1. The end plates 11 have weight-reducing holes and reinforcing ribs.

[0051] The inner wall of the roller 2 has a protrusion 21, with both ends of the protrusion 21 close to the openings at both ends of the roller 2. The locking ring 12 is used to ensure that the edges of the two end plates 11 facing each other are in close contact with the ends of the protrusion 21. Through the arrangement of the end plates 11, the locking ring 12 and the protrusion 21, the transmission connection between the roller 2 and the rotor 1 is realized, that is, the rotor 1 drives the roller 2 to rotate.

[0052] The toothed plate 3 is arc-shaped and detachably connected to the roller 2 by bolts or other fasteners; multiple toothed plates 3 can be closed to form a continuous circular structure that surrounds the circumferential side of the roller 2; multiple crushing teeth 31 are evenly distributed on the outer side of the toothed plate 3 (the side away from the roller 2), and these crushing teeth 31 include high teeth 311 ( Figure 3 The high teeth 311 (circled by double dots) and low teeth 312 are arranged such that there is at least one low tooth 312 between any two adjacent high teeth 311, thus the crushing teeth 31 are arranged intermittently at different heights on the tooth plate 3. High teeth 311 and low teeth 312 are relative concepts, and they are distinguished according to the height of their protrusions from the tooth plate 3.

[0053] By employing an intermittent, high-low arrangement of the crushing teeth 31 on the toothed plate 3, the feeding and gripping of materials of varying sizes into the crushing working pair becomes smoother, reducing the likelihood of large materials being unable to enter or small materials not being crushed. The crushing working pair refers to the crushing teeth 31 and the structures that work in conjunction with them to crush materials.

[0054] The reinforcement mechanism is used to enhance the firmness of the connection between the toothed plate 3 and the roller 2. The reinforcement mechanism includes a first insert 32 and a second insert 4.

[0055] The first insert 32 is connected to the inner side of the toothed plate 3 (towards the roller 2). The opposite sides of the first insert 32 have first inclined surfaces 321.

[0056] The second insert 4 is detachably connected to the roller 2 and the toothed plate 3; a plurality of second inserts 4 are arranged around and spaced apart around the roller 2. The opposite sides of the second insert 4 have second inclined surfaces 41 that cooperate with the first inclined surface 321.

[0057] A first insert 32 is located between two adjacent second inserts 4; the first insert 32 is pressed and fixed onto the roller 2 by the engagement between the second inclined surface 41 and the first inclined surface 321. In other embodiments, a gas-fitting method can also be used to press and fix the first insert 32 onto the roller 2 by the adjacent second inserts 4.

[0058] In this embodiment, the toothed plate 3 and the roller 2 are detachably connected by bolts as follows: The toothed plate 3 has a toothed plate fixing countersunk hole 33; the first insert 32 has an insert fixing hole 42 and a connecting hole 43; the insert fixing hole 42 is used to fix the first insert 32 to the roller 2 by bolts. The connecting hole 43 can be aligned with the toothed plate fixing countersunk hole 33 so that the toothed plate 3, the first insert 32 and the roller 2 are fastened together by bolts.

[0059] In the above scheme, not only are the toothed plate 3, the first insert 32 and the roller 2 fastened together by bolts, but the first insert 32 is also double-fixed by other bolts, which is more reliable.

[0060] Furthermore, to better secure the first insert 32, the first insert 32 is also provided with plug welding holes 44, and the first insert 32 is reinforced by plug welding. In addition, the edge portion of the first insert 32 exposed outside the toothed plate 3 can be spot welded to the roller 2 to further improve the strength of the connection.

[0061] Finally, it should be noted that the above are merely preferred embodiments of this application and are not intended to limit this application. For those skilled in the art, this application can have various modifications and variations. Without conflict, the embodiments and features described in the embodiments of this application can be arbitrarily combined with each other. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A crusher, characterized in that The crusher comprises a primary crushing working pair, which comprises a counterattack plate and a crushing roller used in cooperation, and the distance between the counterattack plate and the crushing roller is adjustable; the crushing roller comprises: a rotor; a roller is drivingly connected with the rotor; an arc-shaped tooth plate is detachably connected with the roller; a reinforcing mechanism is used to enhance the firmness of the connection between the tooth plate and the roller; wherein a plurality of the tooth plates can be enclosed to form a continuous-edge circular structure, which is enclosed on the circumferential side of the roller; the outer side of the tooth plate is uniformly distributed with a plurality of crushing teeth, which comprise high teeth and low teeth, and there is at least one low tooth between any two adjacent high teeth.

2. The crusher of claim 1, wherein The crusher further comprises a secondary crushing working pair, and the material is crushed by the primary crushing working pair and the secondary crushing working pair in sequence.

3. The crusher of claim 1, wherein, The distance between the counterattack plate and the crushing roller is adjusted by a hydraulic cylinder.

4. The crusher of claim 1, wherein The reinforcing mechanism comprises: a first insert block connected to the inner side of the tooth plate; a second insert block detachably connected with the roller and the tooth plate; a plurality of the second insert blocks are arranged around and spaced apart on the periphery of the roller; wherein the first insert block is pressed and fixed on the roller by two adjacent second insert blocks.

5. The crusher of claim 4, wherein, The opposite sides of the first insert block have first inclined surfaces, and the opposite sides of the second insert block have second inclined surfaces used in cooperation with the first inclined surfaces.

6. The crusher of claim 4, wherein, The tooth plate has a tooth plate fixing counterbore; the first insert block has a connecting hole; the connecting hole can be aligned with the tooth plate fixing counterbore.

7. The crusher of claim 6, wherein, The first insert block further has an insert block fixing hole, which is used to fix the first insert block on the roller by bolts.

8. The crusher of claim 6, wherein, The first insert block further has a plug welding hole.

9. The crusher of claim 6, wherein, The edge of the first insert block is spot-welded to the roller.

10. The crusher according to any one of claims 1-9, wherein: two end plates are sleeved on the rotor, and the rotor can drive the end plates to rotate; two locking rings are threadedly connected to the rotor; the inner wall of the roller has a protrusion, and the two ends of the protrusion are close to the two end openings of the roller; the locking rings are used to make the edges of the sides of the two end plates facing each other in close contact with the end portions of the protrusion.

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