Roller type stone crusher

Abstract

The utility model discloses a roller type stone crusher, relates to the technical field of stone crushers, and adopts the technical scheme that the roller type stone crusher comprises a machine body and a conveying belt, two stone crushing rollers are arranged in the machine body, the rotating directions of the two stone crushing rollers are opposite, a feeding hole is formed in the top end of the machine body, a rotating frame is arranged between the feeding hole and the stone crushing rollers, and the rotating frame comprises a supporting shaft and three supporting plates; the supporting shafts are rotationally matched with the machine body, the three supporting plates are distributed in a circumferential array mode, and spraying heads are arranged on the side wall of the machine body. According to the stone crusher disclosed by the utility model, the rotating frame in running fit is arranged in the machine body, when stones fall onto the rotating frame through the feeding hole, the rotating frame can rotate to drive the stones to fall onto the stone crushing roller for stone crushing, and the rotating frame can play a role in blocking the crushed stones and preventing the crushed stones from flying out through the feeding hole, so that workers beside the stone crusher can be protected; spraying of the spraying heads not only can play a dust falling role, but also can cool the stone crushing roller, so that the stone crushing roller has a longer service life.

Description

Technical Field

[0001] The utility model relates to the technical field of crushers, and more specifically, it relates to a roll crusher. Background Art

[0002] A crusher is an essential equipment in mining machinery. It can help break ores and ore raw materials into smaller particles for more convenient subsequent processing. A roll crusher is a common crushing equipment that uses two or more rollers to crush ores. The advantage of a roll crusher is that it can produce uniform crushed particles and is suitable for crushing a large amount of ores.

[0003] The existing roll crushers are often open for convenient feeding. Therefore, when the crusher is working, the crushed stones will fly out from the feeding port, which may cause harm to construction workers.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a roll crusher to solve the above problems.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: A roll crusher includes a machine body and a conveyor belt. Two crushing rollers for crushing are arranged in the machine body, and the two crushing rollers rotate in opposite directions. A feeding port is arranged at the top of the machine body. A rotating frame is arranged between the feeding port and the crushing rollers. The rotating frame includes a support shaft and three support plates fixedly connected to the support shaft. The support shaft is rotationally matched with the machine body. The three support plates are distributed in a circumferential array. A spray head is arranged on the side wall of the machine body.

[0007] The utility model is further arranged as follows: Symmetrically distributed first baffles are arranged on the feeding port, and the first baffles are obliquely arranged above the spray head.

[0008] The utility model is further arranged as follows: The maximum distance between the two support plates is greater than the minimum distance between the two first baffles.

[0009] The utility model is further arranged as follows: The crushing roller includes a rotating shaft and crushing blocks fixedly connected to the rotating shaft. Clamping blocks are fixedly connected to the crushing blocks in a circumferential array.

[0010] The utility model is further arranged as follows: A deceleration plate with an inverted V-shaped cross-section is fixedly connected to the lower end of the machine body where the crushing roller is located.

[0011] The present utility model is further configured such that: on both sides of the speed reducer plate inside the machine body, there are fixedly installed second baffles which are inclined, and a passage for the crushed stones to pass through is formed between the second baffles and the speed reducer plate.

[0012] To sum up, the present utility model has the following beneficial effects:

[0013] By arranging a rotating frame which is rotationally matched inside the machine body, when the stones enter the machine body through the feed inlet, they will act on the support plate, thereby driving the rotation of the support plate, sending the stones between the two crushing rollers for crushing. And since the maximum distance between the two support plates is greater than the minimum distance between the two first baffles, the support plate can play a role in blocking the crushed stones and prevent them from flying out through the feed inlet, thus protecting the workers beside the crusher. The spraying of the spray head can not only play a role in dust reduction, but also cool the crushing rollers, enabling them to have a longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structure of the present utility model Figure 1 ;

[0015] Figure 2 is a schematic structure of the present utility model Figure 2 ;

[0016] Figure 3 is a cross-sectional view of the present utility model.

[0017] Reference numerals: 1, machine body; 2, conveyor belt; 3, feed inlet; 4, spray head; 5, first baffle; 6, support shaft; 7, support plate; 8, speed reducer plate; 9, second baffle; 10, rotating shaft; 11, crushed stones; 12, clamping block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0019] Such as Figure 1 、 Figure 2 and Figure 3As shown in the figure, a roller crusher includes a machine body 1 and a conveyor belt 2. After the crushing is completed by the crusher, the crushed stones are conveyed through the conveyor belt 2. At the top of the machine body 1, there is a feed inlet 3. Stones enter the machine body 1 through the feed inlet 3 for crushing. Inside the machine body 1, there are two crushing rollers for crushing stones. The two crushing rollers rotate in opposite directions. When the two crushing rollers rotate towards each other, they will generate forces on the stones from both sides, and then squeeze the stones from both sides to facilitate crushing the stones. The crushing roller includes a rotating shaft 10 and crushing blocks 11 fixedly connected to the rotating shaft 10. The crushing blocks 11 are made of high manganese steel and are very hard in texture. When rotating, they will impact the stones, thereby crushing the stones into smaller pieces. The crushing blocks 11 are fixedly connected with clamping blocks 12 arranged in a circumferential array. Since the surface of the stones is usually uneven, the presence of the clamping blocks 12 will play a certain clamping role on the stones, and then can prevent the stones from slipping and bringing the stones between the two crushing rollers, facilitating the extrusion and crushing of the stones.

[0020] As Figure 2 and Figure 3 shown, a rotating frame is rotatably connected between the feed inlet 3 and the crushing roller. The rotating frame can play a role in blocking the crushed stones to prevent them from splashing out through the feed inlet 3 and causing harm to the workers on both sides of the crusher. The rotating frame includes a support shaft 6 and three support plates 7 fixedly connected to the support shaft 6. The three support plates 7 are distributed in a circumferential array. After the stones enter the machine body 1 through the feed inlet 3, the stones will fall between the two support plates 7, and then drive the support plates 7 to rotate under the action of gravity, so that they fall between the two crushing rollers again for crushing. The presence of the support plates 7 can play a role in blocking the crushed stones. When the crushed stones splash, they will be blocked by the support plates 7, and then can effectively prevent the splashing of the crushed stones. On the feed inlet 3, there are symmetrically distributed first baffles 5. The first baffles 5 are inclined on the two inner side walls of the feed inlet 3. When the stones enter the machine body 1 through the feed inlet 3, the first baffles 5 will play a role in decelerating the stones. The stones will first hit the first baffles 5, and then the impact force on the rotating frame will be reduced, making the rotating frame have a longer service life. The maximum distance between the two support plates 7 is greater than the minimum distance between the two first baffles 5, so it can effectively prevent the splashing stones from flying out of the feed inlet 3. A spray head 4 is provided on the side wall of the machine body 1. The spray head 4 will spray water mist at intervals, thereby being able to adsorb the dust generated in the machine body 1 due to crushing and prevent the dust from polluting the outside. After the crushing roller works for a long time, due to continuous extrusion and collision with the stones, a large amount of heat will be generated, making the surface of the crushing roller very hot, affecting the use of the crushing roller. The water mist can play a role in cooling the crushing roller, making it have a longer service life. The first baffle 5 is located above the spray head 4, and the first baffle 5 will play a role in protecting the spray head 4 to prevent it from being damaged due to the impact of the stones.

[0021] As Figure 2 and Figure 3As shown in the figure, a speed reducer plate 8 with an inverted V-shaped cross-section is fixedly connected to the lower end of the crushing roller of the machine body 1. After the stones are crushed, they will first fall onto the speed reducer plate 8. The speed reducer plate 8 can reduce the impact of the crushed stones on the conveyor belt 2 to a certain extent, making the conveyor belt 2 not easily damaged and having a longer service life. On both sides of the speed reducer plate 8 inside the machine body 1, second baffles 9 are fixedly installed in an inclined manner. The second baffles 9 also play a role in reducing the speed of the crushed stones. A passage for the crushed stones to pass through is formed between the second baffles 9 and the speed reducer plate 8. As a result, the crushed stones will fall onto the conveyor belt 2 through the passage without flying around randomly, facilitating the transportation of the conveyor belt 2. And when the stones are not completely crushed and are still relatively large in volume, the stones will be stuck at the passage opening, and the continuous rotation of the crushing roller will continue to squeeze these crushed stones, further reducing the volume of these crushed stones, which is convenient for the subsequent utilization of the stones.

[0022] The above description is only the preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A roller crusher, characterized in that: The invention comprises a machine body (1) and a conveyor belt (2), wherein two stone crushing rollers for crushing stones are arranged in the machine body (1), and the two stone crushing rollers rotate in opposite directions. A feed port (3) is arranged at the top of the machine body (1), and a rotating frame is arranged between the feed port (3) and the stone crushing rollers. The rotating frame comprises a support shaft (6) and three support plates (7) fixedly connected to the support shaft (6), and the support shaft is rotatably matched with the machine body, and the three support plates (7) are distributed in a circular array. A spray head (4) is arranged on the side wall of the machine body (1).

2. A roller crusher according to claim 1, characterized in that: The feed port (3) is provided with symmetrically distributed first baffles (5), and the first baffles (5) are arranged obliquely above the spray head (4).

3. A roller crusher according to claim 2, characterized in that: The longest distance between the two support plates (7) is greater than the shortest distance between the two first baffles (5).

4. A roller crusher according to claim 1, characterized in that: The stone crushing roller comprises a rotating shaft (10) and a stone crushing block (11) fixedly connected to the rotating shaft (10), and a clamping block (12) in a circumferential array is fixedly connected to the stone crushing block (11).

5. A roller crusher according to claim 4, characterized in that: The machine body (1) is fixedly connected to a speed reducer (8) having an inverted V-shaped cross section at the lower end of the stone crushing roller.

6. A roller crusher according to claim 5, characterized in that: Second baffles (9) are fixedly arranged obliquely on both sides of the deceleration plate (8) in the machine body (1), and a passage for gravel to pass through is formed between the second baffle (9) and the deceleration plate (8).

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