Improved clean coal separation crusher device

Abstract

The utility model discloses an improved clean coal separation crusher device which comprises a box body, a feeding port and a discharging port are formed in the box body, a pair of rollers is arranged in the box body, the rollers are in transmission connection with a driving assembly, and a plurality of sets of detachable ring tooth assemblies are installed on the rollers in the length direction. The crushing roller has the beneficial effects that the structure is simple, the detachable ring tooth assembly is designed on the crushing roller, a single circle of crushing teeth can be reasonably replaced according to the crushing degree of the crushing teeth, and resource waste caused by replacement of the whole crushing roller is avoided, so that the production cost is reduced, and the production efficiency is improved. And meanwhile, online replacement of the crushing teeth can be realized without detaching the crushing roller when the single circle of crushing teeth are replaced, so that the replacement is quick and convenient, and the working efficiency is high.

Description

Technical fields:

[0001] This utility model relates to the technical field of coal preparation and crushing equipment, and in particular to an improved clean coal sorting and crushing device. Background technology:

[0002] Double roll crushers are the most common crushing equipment in the coal preparation industry. Their function is to crush coal into suitable particle sizes, and then grind the coal particles into coal powder and make coal slime for flotation through a ball mill. In actual use, due to the unavoidable presence of coal gangue in coal, the hard coal gangue easily wears down the crushing teeth on the crushing rolls. After a period of use, new crushing rolls need to be replaced to meet the particle size requirements of the coal. However, when replacing the crushing rolls, it was found that the crushing teeth in the middle of the crushing rolls were severely worn, while the crushing teeth at the edges of the crushing rolls were only slightly worn and had not reached the wear limit. The reason is that the crushing capacity of the crushing teeth located directly below the crusher's feed inlet is significantly higher than that of the edge crushing teeth. Replacing the entire crushing roll would obviously be a waste of resources, resulting in high equipment wear and high production costs. Utility model content:

[0003] The purpose of this utility model is to provide an improved coal sorting and crushing machine device to solve the technical problems of resource waste and high production costs in the existing technology when replacing crushing rollers.

[0004] The present invention relates to an improved coal sorting and crushing device, comprising a housing with an inlet and a outlet, a pair of rollers inside the housing, the rollers being connected to a drive assembly, and several sets of detachable ring gear assemblies mounted on the rollers along their length.

[0005] Furthermore, the detachable ring gear assembly includes two semi-circular positioning rings that snap together. A ring groove matching the positioning ring is formed on the roller. The positioning ring is installed in the ring groove. A pin hole is formed in the ring groove. A positioning pin is installed on the inner wall of the positioning ring. The positioning pin is inserted into the pin hole. Several breaking teeth are fixedly installed on the outer wall of the positioning ring. A threaded through hole is formed on the positioning ring.

[0006] Furthermore, the pin hole and the locating pin are H7 / v6 interference fit.

[0007] Furthermore, a chamfer is provided on the pin hole.

[0008] Furthermore, the drive assembly includes a rotating shaft that is fixedly connected to the roller, and a gear is mounted on the rotating shaft. Two gears mesh with each other, and one of the gears is connected to a motor for transmission.

[0009] Furthermore, a plurality of comb teeth are installed on the inner wall of the housing, the comb teeth being located between two adjacent detachable ring tooth assemblies.

[0010] The beneficial effects of this utility model are as follows: This utility model has a simple structure and a detachable ring tooth assembly is designed on the crushing drum. The single ring of crushing teeth can be replaced reasonably according to the crushing degree of the crushing teeth, avoiding the waste of resources caused by replacing the entire crushing drum, thereby reducing production costs. At the same time, the crushing teeth can be replaced online without disassembling the crushing drum, which is quick and convenient and has high work efficiency. Attached image description:

[0011] Figure 1 This is a cross-sectional view of the present invention;

[0012] Figure 2 for Figure 1 Sectional view along AA;

[0013] Figure 3 This is a perspective view of the installation structure of the detachable ring gear assembly.

[0014] Figure 4 A perspective view of the detachable ring gear assembly;

[0015] In the figure, 1 is the box body, 2 is the drum, 3 is the drive device, 3 is the ring groove, 4 is the positioning ring, 5 is the crushing tooth, 6 is the positioning pin, 7 is the pin hole, 8 is the comb tooth, 9 is the unloading plate, 10 is the feed port, 11 is the discharge port, 12 is the rotating shaft, 13 is the gear, 14 is the motor, and 15 is the threaded through hole. Detailed implementation method:

[0016] like Figure 1 and Figure 2 As shown, an improved coal sorting and crushing device includes a housing 1, on which an inlet 10 and a discharge port 11 are provided. A pair of rollers 2 are provided inside the housing 1. The rollers 2 are connected to a drive assembly. Several sets of detachable ring gear assemblies are installed on the rollers 2 along the length direction.

[0017] like Figure 3 and Figure 4As shown, the detachable ring gear assembly includes two interlocking semi-circular positioning rings 4. A groove 3 matching the positioning ring 4 is formed on the roller 2, and the positioning ring 4 is installed within the groove 3. A pin hole 7 is formed within the groove 3, and a positioning pin 6 is installed on the inner wall of the positioning ring 4, inserted into the pin hole 7. Several breaking teeth 5 are fixedly installed on the outer wall of the positioning ring 4. A threaded through hole 17 is formed on the positioning ring 4 for disassembling the positioning ring 4. To improve the stability of the torque transmitted by the positioning pin 6, the pin hole 7 and the positioning pin 6 are H7 / v6 interference fits. H7 / v6 is a small interference fit, belonging to a light-pressure type fit. To facilitate the smooth insertion of the positioning pin 6 into the pin hole 7, a chamfer is provided on the pin hole 7, serving as a guide.

[0018] like Figure 2 As shown, the drive assembly includes a rotating shaft 12, which is fixedly connected to the roller 2. A gear 13 is installed on the rotating shaft 12, and two gears 13 mesh with each other. One of the gears 13 is connected to the motor 14 for transmission. Several comb teeth 8 are installed on the inner wall of the housing 1. The comb teeth 8 are located between two adjacent detachable ring gear assemblies. The comb teeth 8 are used to clean the coal gangue stuck between adjacent detachable ring gear assemblies.

[0019] like Figure 3 As shown, based on the actual wear of the crushing tooth 5, the single-turn detachable ring tooth assembly can be disassembled. During disassembly, a bolt is screwed into the threaded through hole 15. When the bolt contacts the bottom of the ring groove 3, the positioning pin 6 can be pushed out from the pin hole 7, thus completing the disassembly of the positioning ring 4. When installing the positioning ring 4, the positioning pin 6 is aligned with the pin hole 7, and a copper rod or other tool is used to knock the positioning pin 6 on the positioning ring 4 into the pin hole 7, thus completing the installation.

[0020] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An improved coal sorting and crushing device, characterized in that: It includes a housing (1), on which an inlet (10) and a discharge port (11) are provided. A pair of rollers (2) are provided inside the housing (1). The rollers (2) are connected to the drive assembly. Several sets of detachable ring gear assemblies are installed on the rollers (2) along the length direction. The detachable ring gear assembly includes two semi-circular positioning rings (4) that are fastened together. A ring groove (3) matching the positioning ring (4) is opened on the roller (2). The positioning ring (4) is installed in the ring groove (3). A pin hole (7) is opened in the ring groove (3). A positioning pin (6) is installed on the inner wall of the positioning ring (4). The positioning pin (6) is inserted into the pin hole (7). Several crushing teeth (5) are fixedly installed on the outer wall of the positioning ring (4). A threaded through hole (17) is opened on the positioning ring (4).

2. The improved clean coal sorting and crushing device according to claim 1, characterized in that: The pin hole (7) and the positioning pin (6) are H7 / v6 interference fit.

3. An improved clean coal sorting and crushing device according to claim 2, characterized in that: A chamfer is provided on the pin hole (7).

4. The improved clean coal sorting and crushing device according to claim 1, characterized in that: The drive assembly includes a rotating shaft (12) which is fixedly connected to the roller (2). A gear (13) is mounted on the rotating shaft (12), and two gears (13) mesh with each other. One of the gears (13) is connected to the electric motor (14) for transmission.

5. An improved clean coal sorting and crushing device according to claim 1, characterized in that: A plurality of comb teeth (8) are installed on the inner wall of the housing (1), and the comb teeth (8) are located between two adjacent detachable ring tooth assemblies.

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