Crushing roller with one-pointed and two-blade crushing teeth

Abstract

The utility model relates to the technical field of crushing, in particular to a crushing roller with crushing teeth with one tip and two blades, which comprises a roller body, the crushing teeth are arranged on the roller body, each crushing tooth comprises a tooth base body fixedly connected with the roller body, an auxiliary splitting blade is arranged at the top of each tooth base body, and the front end of each auxiliary splitting blade extends outwards to form a piercing tooth tip. A main splitting blade is arranged between the bottoms of the adjacent tooth base bodies in the circumferential direction of the roller body. According to an existing scheme, a tooth tip is an intersection of a main blade and an auxiliary blade, after the tooth tip is used for a period of time, the tooth tip is more blunt and more worn, and the tooth-shaped piercing tooth tip is an extended independent tooth tip, so that the piercing efficiency is well guaranteed; and the main splitting blades are connected with the two adjacent crushing teeth, so that the crushing strength is well ensured, and meanwhile, the main splitting blades can play a role in crushing and connecting rib plates.

Description

Technical Field

[0001] This utility model relates to the field of crushing technology, specifically to a crushing roller with a pointed tip and two cutting edges. Background Technology

[0002] Crushing equipment is a commonly used piece of equipment in coal preparation processes. Currently, the tooth profile of the crushing teeth on the crushing rollers in crushing equipment generally adopts... Figure 4 The structure shown consists of a main cutting edge, a secondary cutting edge, and a tooth tip at the junction of the main cutting edge and the secondary cutting edge; however, in actual use, this tooth structure has poor wear resistance and a service life of about 1200 hours, which does not meet the actual requirements. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a crushing roller with a single-pointed, double-edged crushing tooth.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A crushing roller with a single-pointed, double-edged crushing tooth includes a roller body, on which crushing teeth are provided. Each crushing tooth includes a tooth base fixedly connected to the roller body. A secondary splitting blade is provided at the top of the tooth base, and a piercing tooth tip extends outward from the front end of the secondary splitting blade. A primary splitting blade is provided between the bottoms of adjacent tooth bases in the circumferential direction of the roller body.

[0006] Compared with the prior art, the present invention, which adopts the above technical solution, has the following outstanding features: In the prior art, the tooth tip is the intersection of the main and secondary cutting edges. After a period of use, the tooth tip becomes duller and wears out quickly. In the present application, the tooth tip is an extended independent tooth tip, which ensures the piercing efficiency very well. The main splitting edge connects two adjacent breaking teeth, which ensures the breaking strength very well. At the same time, the main splitting edge can play both the breaking role and the connecting rib plate role.

[0007] As a preferred embodiment, a further technical solution of this utility model is:

[0008] Preferably, the tooth matrix has a smooth, thinned structure from the bottom to the top of the secondary splitting edge.

[0009] Preferably, the top cross-sectional profile of the secondary splitting edge is arc-shaped.

[0010] Preferably, the top edge of the main splitting blade has an arc-shaped profile.

[0011] Preferably, the puncture tip is cone-shaped.

[0012] Preferably, the front side of the tooth base is arc-shaped and the back side is a plane that slopes forward.

[0013] Preferably, the crushing teeth on the roller are arranged in a spiral. Attached Figure Description

[0014] Figure 1 This is a side view of the crushing roller with a single-pointed, double-edged crushing tooth in an embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram of the main structure of the crushing tooth part in an embodiment of this utility model;

[0016] Figure 3 This is a side view of the crushing tooth portion in an embodiment of this utility model;

[0017] Figure 4 This is a schematic diagram of the existing crushing roller tooth profile.

[0018] Explanation of reference numerals in the attached diagram: 1. Roller body; 2. Crushing tooth; 3. Tooth base; 4. Secondary splitting blade; 5. Piercing tooth tip; 6. Main splitting blade. Detailed Implementation

[0019] The present invention will be further described below with reference to specific embodiments. The purpose of this description is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0020] like Figures 1 to 3 As shown in the figure, this embodiment provides a crushing roller with a single-pointed double-edged crushing tooth, including a roller body 1, a crushing tooth 2 provided on the roller body 1, the crushing tooth 2 including a tooth base 3 fixedly connected to the roller body 1, a secondary splitting blade 4 provided on the top of the tooth base 3, a piercing tooth tip 5 extending outward from the front end of the secondary splitting blade 4, and a main splitting blade 6 provided between the bottoms of adjacent tooth bases 3 in the circumferential direction of the roller body 1.

[0021] In practice, the front side of this application is the front side with the rotation direction of the crushing roller 1 as the reference, and the bottom of the tooth base 3 has a smooth thinning structure towards the top of the secondary splitting blade 4.

[0022] The top cross-sectional profile of the secondary splitting blade 4 is arc-shaped; specifically, the top cross-sectional profile along both the circumferential and axial directions of the roller body 1 is arc-shaped.

[0023] The top edge of the main splitting blade 6 has an arc-shaped profile.

[0024] The puncture tip forms a 5-cone shape.

[0025] The front side of the tooth matrix 3 is arc-shaped, and the back side is a plane that tilts forward.

[0026] The crushing teeth 2 on the roller body 1 are arranged in a spiral.

[0027] In specific implementation, see Figure 2The tooth height of the crushing tooth 2 is 140mm. Compared with the existing tooth shape, the increased tooth height improves wear resistance and extends service life. The crushing tooth tip 5 is an independent tip with a length of 75mm to ensure piercing efficiency.

[0028] In existing structures, the main cutting edge directly splits the material. When it cannot hold the material well, slippage and dry grinding occur, and the main cutting edge becomes blurred after wear. In this application, the main splitting edge 6 works in conjunction with the piercing tooth tip 5 for crushing. When the crushing teeth 2 of the two crushing rollers hold the gangue, the three main splitting edges 6 of the two crushing rollers work together to split the gangue. This not only effectively crushes the gangue but also reduces the wear of the main splitting edge 6.

[0029] The secondary splitting blade 4 has a length of 165mm, and the bonding length between the tooth base 2 and the roller body 1 is 165mm, which increases the bonding strength of the crushing teeth and avoids the problem of tooth breakage.

[0030] The main splitting blade 6 has a thickness of 35mm and connects two adjacent breaking teeth 2, which effectively ensures the breaking strength and also serves as a connecting stiffener.

[0031] In use, the crushing tooth 2 will not break when subjected to circumferential force. It will only break when subjected to radial force. The distance between the crushing tooth tip and the main splitting blade 6 in this application is 52mm. Usually, gangue with a particle size of 52mm does not need to be crushed and can pass directly between the two toothed rollers without forming a large radial force.

[0032] The above description is merely a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. A crushing roller with a pointed, double-edged crushing tooth, comprising a roller body, wherein the roller body is provided with crushing teeth, characterized in that, The crushing tooth includes a tooth base that is fixedly connected to the roller body. A secondary splitting blade is provided on the top of the tooth base. The front end of the secondary splitting blade extends outward to provide a piercing tooth tip. A main splitting blade is provided between the bottoms of adjacent tooth bases in the circumferential direction of the roller body.

2. The crushing roller with a single-pointed, double-edged crushing tooth according to claim 1, characterized in that, The tooth matrix has a smooth, thinning structure from the bottom to the top of the secondary splitting edge.

3. The crushing roller with a single-pointed, double-edged crushing tooth according to claim 1, characterized in that, The top cross-sectional profile of the secondary splitting edge is arc-shaped.

4. The crushing roller with a single-pointed, double-edged crushing tooth according to claim 1, characterized in that, The top edge of the main splitting blade has an arc-shaped profile.

5. The crushing roller with a single-pointed, double-edged crushing tooth according to claim 1, characterized in that, It pierces the tip of the tooth in a cone shape.

6. The crushing roller with a single-pointed, double-edged crushing tooth according to claim 1, characterized in that, The front side of the tooth matrix is ​​curved, and the back side is a plane that slopes forward.

7. The crushing roller with a single-pointed, double-edged crushing tooth according to claim 1, characterized in that, The crushing teeth on the roller are arranged in a spiral.

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