Improved crusher tooth roller structure

Abstract

The utility model provides an improved crusher tooth roller structure, and belongs to the technical field of crushing equipment. The improved crusher tooth roller structure comprises a rotating roller and a fluted disc, the fluted disc is composed of two half discs, the fluted disc is axially arrayed on the outer circle of the rotating roller, space rings are arranged at the two ends of the fluted disc, and convex rings are arranged on the two sides of the fluted disc and inserted into the space rings. The centering device has the advantages that the space ring and the fluted disc are clamped together through the rotating roller, the fluted disc composed of the two half discs is clamped through the space ring, the protruding rings on the two sides of the fluted disc are inserted into the space ring, and therefore the centering effect is achieved, and when disassembly and replacement are needed, only a certain gap needs to be reserved, the fluted disc can be separated and directly taken down, and disassembly and assembly are easier and more convenient.

Description

Technical Field

[0001] This application relates to the field of crushing equipment technology, and more specifically, to an improved crusher toothed roller structure. Background Technology

[0002] Existing crusher toothed rollers are usually integrally molded. When individual teeth are damaged, they are difficult to repair. Replacing all of them is costly, while not repairing them will affect the crushing effect and production. Although the use of wire-drawing inserts for locking improves the ease of installation, it reduces the firmness and makes them prone to deformation after long-term use, making replacement difficult.

[0003] In response, Chinese patent application number CN201110392710.X discloses a crusher toothed roller. This solution mainly fixes the toothed roller through a dovetail locking mechanism between each arc-shaped toothed plate and the roller. It has the advantages of simple structure, high precision, and convenient toothed plate replacement.

[0004] However, in the process of implementing the technical solutions in the embodiments of this application, the inventors of this utility model discovered that the above-mentioned technology has at least the following technical problems:

[0005] When disassembling or assembling the toothed plate in the middle of the roller, all the toothed plates on one side need to be removed before the movable pressure plate can be inserted, which makes disassembly and assembly inconvenient. Utility Model Content

[0006] To overcome the above deficiencies, this application provides an improved crusher toothed roller structure, which aims to improve the problems mentioned in the background art.

[0007] This application provides an improved crusher toothed roller structure, including a rotating roller and a toothed disc. The toothed disc is composed of two half-discs, and the toothed discs are axially arranged on the outer circle of the rotating roller. Spacer rings are provided at both ends of the toothed disc, and convex rings are provided on both sides of the toothed disc and inserted into the spacer rings.

[0008] In one specific implementation, the rotating roller includes a roller with baffles detachably connected to both ends of the roller.

[0009] In the above process, the baffles on both sides are fixed to the two ends of the roller by means of flange connection, thereby clamping the toothed disc and spacer on the outer circle of the roller.

[0010] In one specific implementation, the roller surface is provided with an axial groove, and the toothed disc and the spacer are both circumferentially fixed to the roller through the groove.

[0011] In the above implementation process, the chute is used for circumferential connection between the roller and the toothed disc. Here, there is a large gap between the spacer and the chute, and the circumferential fixation is mainly supported by the toothed disc.

[0012] In one specific implementation, the roller further includes an inner sleeve, which is fixedly connected to the inner walls at both ends of the roller.

[0013] In the above process, the inner sleeve is made of a metal material with excellent machinability, and the roller is made of a high-strength and high-wear-resistant material. The two materials are connected into a whole by casting. The precision-machined inner sleeve is used to connect with the main shaft, which can ensure the assembly accuracy of the inner sleeve and the main shaft.

[0014] In one specific implementation, the toothed disc is provided with roller teeth, which are evenly distributed circumferentially and staggered in every two rows axially.

[0015] In the above implementation process, the staggered arrangement of roller teeth can improve the crushing effect. Here, each toothed disc is in a row.

[0016] In one specific implementation, the toothed disc is in clearance fit with the outer circle of the roller, the convex ring is in close contact with the spacer ring, and the spacer ring is in close contact with the bottom of the groove.

[0017] In the above implementation process, the roller does not precisely center the toothed disc, but mainly plays the role of circumferential fixation. The inner circle of the spacer is precisely fitted with the bottom of the roller groove to play the role of centering. The toothed disc is then centered by the insertion of the spacer and the convex ring to avoid the need for high precision requirements of the groove size, which would increase costs.

[0018] In one specific implementation, the outer circle of the convex ring is set as a conical surface with a small cone angle.

[0019] In the above implementation process, the convex ring adopts a cone surface with a small cone angle to improve the tight fit between the convex ring and the spacer ring to improve the centering effect. If the cone angle is too large, it is difficult to ensure that the end face of the spacer ring fits the end face of the toothed disc. The spacer ring mainly fits precisely with the bottom wall of the chute to achieve the centering function, while the accuracy of the outer circle of the roller can be reduced, so that the surface of the bottom wall of the chute can be protected and is not easily damaged.

[0020] In one specific implementation, the breaks of adjacent toothed discs are perpendicular to each other.

[0021] In the above implementation process, since the toothed disc is divided into two halves, when it is subjected to crushing force, each half of the disc transmits stress to the spacer as a whole. When the fracture surfaces are perpendicular to each other, the toothed discs at both ends of a spacer are not likely to transmit the same stress, thereby effectively reducing the situation of stress concentration and fracture of the spacer. In this embodiment, the toothed disc is machined as a whole, then fractured into two halves using the expansion fracture method, and finally put together for fine machining of the internal contour.

[0022] Compared with the prior art, the beneficial effects of this application are: the spacer and the toothed disc are clamped together by the rotating roller, the toothed disc composed of two half discs is clamped by the spacer, and the convex rings on both sides of the toothed disc are inserted into the spacer to achieve the centering function. In this way, when it is necessary to replace, only a certain gap needs to be left so that the toothed disc can be separated and removed directly, making disassembly and assembly simpler. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the improved crusher toothed roller structure provided in the embodiments of this application;

[0025] Figure 2 A schematic diagram of the geared disc detached state provided for an embodiment of this application;

[0026] Figure 3 A schematic diagram illustrating the connection relationship between the toothed disc and the spacer ring and the roller provided for an embodiment of this application;

[0027] Figure 4 A schematic diagram illustrating the connection relationship between the gear disc and the spacer ring provided in an embodiment of this application.

[0028] In the diagram: 10-Rotating roller; 11-Baffle plate; 12-Roller; 13-Groove; 14-Inner sleeve; 20-Gear disc; 30-Spacer ring; 40-Convex ring. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0030] Please see Figures 1-4 This application provides an improved crusher toothed roller structure, including a rotating roller 10 and a toothed disc 20. The toothed disc 20 consists of two half-discs, which are axially arranged on the outer circumference of the rotating roller 10. Spacer rings 30 are provided at both ends of the toothed disc 20, and convex rings 40 on both sides of the toothed disc 20 are inserted into the spacer rings 30. The rotating roller 10 clamps the spacer rings 30 and the toothed disc 20 together, while the spacer rings 30 clamp the two half-discs of the toothed disc 20. The convex rings 40 on both sides of the toothed disc 20 are inserted into the spacer rings 30, thus achieving a centering function. Therefore, when replacement is needed, only a certain gap needs to be left to separate and remove the toothed disc 20 directly, making disassembly and assembly simpler.

[0031] Please see Figures 1-4The rotating roller 10 includes a roller 12, with baffles 11 detachably connected to both ends of the roller 12. The baffles 11 on both sides are fixed to the two end faces of the roller 12 by flange connection, thereby clamping the toothed disc 20 and the spacer 30 on the outer circle of the roller 12.

[0032] Please see Figures 1-4 The roller 12 has an axial groove 13 on its surface. The toothed disc 20 and the spacer 30 are both circumferentially fixed to the roller 12 through the groove 13. The groove 13 is used for circumferential connection between the roller 12 and the toothed disc 20. Here, there is a large gap between the spacer 30 and the groove 13. The circumferential fixation is mainly borne by the toothed disc 20. It should be noted that the groove edge of the groove 13 is inclined. When the toothed disc 20 is broken and subjected to force, one groove edge of the groove 13 is in contact, while the other groove edge has a large gap, so that the toothed disc 20 can be pulled apart from the roller 12 after it is split in two.

[0033] Please see Figures 1-4 The roller 10 also includes an inner sleeve 14, which is fixedly connected to the inner walls at both ends of the roller 12. The inner sleeve 14 is made of a metal material with excellent machinability, and the roller 12 is made of a high-strength and high-wear-resistant material. The two materials are joined into a whole by casting. The precision-machined inner sleeve 14 is connected to the main shaft, which can ensure the assembly accuracy of the inner sleeve 14 and the main shaft.

[0034] Please see Figures 1-4 The toothed disc 20 is equipped with roller teeth, which are evenly distributed circumferentially and staggered in every two rows axially. The staggered arrangement of the roller teeth can improve the crushing effect; here, each toothed disc 20 is a row.

[0035] Please see Figures 1-4 The toothed disc 20 is fitted with the outer circle of the roller 12 with a clearance fit, the convex ring 40 is tightly fitted with the spacer 30, and the spacer 30 is tightly fitted with the bottom of the groove 13. The roller 12 does not precisely center the toothed disc 20, but mainly plays a circumferential fixing role. This allows for a large gap between the toothed disc 20 and the roller 12, so that the toothed disc 20 can be separated from the roller 12. The inner circle of the spacer 30 is precisely fitted with the bottom of the groove 13 of the roller 12, which plays a centering role. The toothed disc 20 is then centered by the insertion of the spacer 30 and the convex ring 40, so as to avoid the need for high dimensional accuracy requirements of the groove 13 and increase costs.

[0036] Please see Figures 1-4 The outer circle of the convex ring 40 is set as a conical surface with a small cone angle. The convex ring 40 adopts a conical surface with a small cone angle to improve the tight fit between the convex ring 40 and the spacer ring 30 to improve the centering effect. If the cone angle is too large, it is difficult to ensure that the end face of the spacer ring 30 fits with the end face of the gear disk 20. The spacer ring 30 mainly fits precisely with the bottom wall of the slide groove 13 to achieve the centering function, while the accuracy of the outer circle of the roller 12 can be reduced, so that the surface of the bottom wall of the slide groove 13 can be protected and is not easily damaged.

[0037] Please see Figures 1-4 The fracture surfaces of adjacent toothed discs 20 are perpendicular to each other. Since the toothed disc 20 is divided into two halves, when subjected to crushing force, each half of the disc transmits stress to the spacer ring 30 as a whole. When the fracture surfaces are perpendicular to each other, the toothed discs 20 at both ends of a spacer ring 30 are less likely to transmit the same stress, thereby effectively reducing the stress concentration and fracture of the spacer ring 30. In this embodiment, the toothed disc 20 is machined as a whole, then fractured into two halves using the expansion fracture method, and finally put together for fine machining of the internal contour.

[0038] The working principle of this improved crusher toothed roller structure is as follows: First, fix one end of the baffle 11. Then, alternately string the spacer ring 30 and toothed disc 20 onto the roller 12. Next, install the other end of the baffle 11 to clamp the spacer ring 30 and toothed disc 20, so that the spacer ring 30 locks the convex ring 40 from both sides, thereby locking the toothed disc 20. When it is necessary to replace one of the toothed discs 20, first loosen the baffle 11 at the nearest end, and move all the spacer rings 30 and toothed discs 20 at the outer end of the toothed disc 20 to one side a small distance, so that the convex ring 40... By pulling the ring 40 out from the spacer 30, the toothed disc 20 can be separated and removed for replacement. At the same time, by adjusting the gap, other toothed discs 20 can also be removed. In summary, the rotating roller 10 clamps the spacer 30 and the toothed disc 20 together, the spacer 30 clamps the toothed disc 20 composed of two half discs, and the convex rings 40 on both sides of the toothed disc 20 are inserted into the spacer 30 to achieve a centering effect. In this way, when it is necessary to replace, only a certain gap needs to be left so that the toothed disc 20 can be separated and removed directly, making disassembly and assembly simpler.

[0039] The above are merely embodiments of this application and are not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, improvements, or equivalent substitutions made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

Claims

1. An improved toothed roll structure for a crushing machine, characterized in that, The application relates to a rotating roller (10) and a toothed disc (20) which is composed of two half discs and is axially arranged outside the rotating roller (10), and the toothed disc (20) is provided with a spacer ring (30) at both ends and is provided with a convex ring (40) inserted into the spacer ring (30) at both sides.

2. The improved toothed roll structure of a crusher as claimed in claim 1, wherein, The rotating roller (10) comprises a roller barrel (12) which is detachably connected with a baffle disc (11) at both ends.

3. The improved toothed roll structure of claim 2, wherein, The roller barrel (12) is provided with an axial sliding groove (13) on the surface, and the toothed disc (20) and the spacer ring (30) are circumferentially fixed with the roller barrel (12) through the sliding groove (13).

4. The improved toothed roll structure of claim 3 wherein, The rotating roller (10) further comprises an inner sleeve (14) which is fixedly connected with the inner wall at both ends of the roller barrel (12).

5. The improved toothed roll structure of claim 4 wherein, The toothed disc (20) is provided with roller teeth which are uniformly distributed in the circumferential direction and are arranged in an interlaced mode in every two columns in the axial direction.

6. The improved toothed roll structure of claim 5 wherein, The toothed disc (20) is gap-fitted with the outer circle of the roller barrel (12), the convex ring (40) is closely attached to the spacer ring (30), and the spacer ring (30) is closely attached to the groove bottom of the sliding groove (13).

7. The improved toothed roll structure of claim 6 wherein, The outer circle of the convex ring (40) is provided with a conical surface with a small taper angle.

8. The improved toothed roll structure of claim 7 wherein, The fracture sections of adjacent toothed discs (20) are perpendicular to each other.

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