Mine gravel crusher

Abstract

The utility model discloses a broken stone crusher for a mine, and relates to the technical field of broken stone crushers. The stone crushing device comprises a stone crushing box, a feeding port is formed in the top of the stone crushing box, two crushing rollers used for crushing stones are arranged in the stone crushing box, two first servo motors driving the two crushing rollers to rotate respectively are fixedly installed on the rear wall face of the stone crushing box, and a discharging pipe communicated with the interior of the stone crushing box is fixedly installed at the bottom of the stone crushing box. When each rotating shaft rotates, the four protection plates connected with the rotating shaft are driven to rotate synchronously, and when the two protection plates located between the two side plates rotate and are far away from each other, large stones can penetrate through the feeding opening to enter the stone crushing box; each first servo motor drives the corresponding crushing roller to rotate so that large stones entering the stone crushing box can be crushed and separated, at the moment, two protection plates are rotated between the two side plates, and the two protection plates located between the two side plates and the two side plates jointly prevent splashed small stones.

Description

Technical Field

[0001] The utility model relates to the technical field of stone crushers, in particular to a stone crusher for mines. Background Art

[0002] Stone crushers are generally called crushers. They are mainly used to crush various types of stones. According to different crushing principles and different product particle sizes, they are divided into many types and models. They are an important part of the sand and gravel crushing production line. Different stone crushers can be matched to form different production line specifications. Both fixed stone crushers and mobile stone crushers have their own advantages. Currently, the commonly used stone crushing machines include jaw crushers, cone crushers, impact crushers, mobile crushers, fine crushers, hammer crushers, impact crushers, roller crushers, compound crushers, etc.

[0003] However, in actual use of the existing crusher, since there is no protective device installed around the feed port, the small stones generated during stone crushing are very easy to splash out from the feed port, which not only causes harm to nearby workers, but also requires the workers to clean up the small stones that fall to the ground, increasing the workload of the workers. For this reason, a stone crusher for mining is proposed. Utility Model Content

[0004] The utility model aims to solve the problem that small stones generated by the existing crusher during stone crushing are very easy to splash out from the feed port. The utility model provides a stone crushing machine for mines.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0006] A stone crusher for mining comprises a stone crushing box, a feeding port is provided on the top of the stone crushing box, two crushing rollers for stone crushing are arranged inside the stone crushing box, two servo motors 1 for driving the two crushing rollers to rotate are fixedly installed on the rear wall of the stone crushing box, a discharge pipe connected with the inside of the stone crushing box is fixedly installed on the bottom of the stone crushing box, two U-shaped frames are fixedly installed on the top of the stone crushing box, a rotatable shaft is movably installed inside each U-shaped frame, four evenly distributed protective plates are fixedly installed on the side wall of each shaft, a servo motor 2 for driving the adjacent shaft to rotate is fixedly installed on the side wall of each U-shaped frame, an infrared sensor is fixedly installed on the side where the two U-shaped frames are close to each other, and two side plates are arranged between the two U-shaped frames.

[0007] Furthermore, a side of each of the protective plates away from the adjacent rotating shaft is arranged in an arc shape.

[0008] Furthermore, two slide grooves are provided on the sides of the two U-shaped frames that are close to each other, and a slide rod is movably installed inside each slide groove, and each slide rod is fixedly connected to the adjacent side plate.

[0009] Furthermore, two staggered drainage rods are fixedly installed inside the gravel box, the drainage rod located at the top is arranged to be inclined downward from left to right, and the drainage rod located at the bottom is arranged to be inclined downward from right to left.

[0010] Furthermore, a servo motor three is fixedly installed on the rear wall of the crushed stone box, the output end of the servo motor three extends to the inside of the crushed stone box, a connecting rod is fixedly installed on the output end of the servo motor three, a scraping rod is fixedly installed on one end of the connecting rod away from the output end of the servo motor three, and the bottom of the crushed stone box is arranged in an arc surface.

[0011] Furthermore, a buffer pad is fixedly installed on the outside of each protective plate, and the buffer pad is made of elastic rubber material.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The utility model puts the large stones that need to be crushed into the middle of two U-shaped frames. When the two infrared sensors sense the presence of an object, the two infrared sensors respectively control the adjacent servo motors to start. Each servo motor drives the corresponding rotating shaft to rotate ninety degrees, so that the two rotating shafts rotate relative to each other. When each rotating shaft rotates, it drives the four protective plates connected to itself to rotate synchronously. When the two protective plates located between the two side plates rotate and move away, the large stones can pass through the feed port into the interior of the crushed stone box. Each servo motor drives the corresponding crushing roller to rotate to crush and separate the large stones entering the crushed stone box. At this time, two protective plates are rotated into the middle of the two side plates, and the two protective plates located between the two side plates and the two side plates jointly prevent the splashing of small stones. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the protective plate of the utility model;

[0016] Figure 3 It is a schematic diagram of the back side of the utility model;

[0017] Figure numerals: 1. gravel box; 2. feed port; 3. crushing roller; 4. servo motor one; 5. discharge pipe; 6. U-shaped frame; 7. servo motor two; 8. rotating shaft; 9. protective plate; 10. infrared sensor; 11. side plate; 12. slide chute; 13. slide rod; 14. drainage rod; 15. servo motor three; 16. connecting rod; 17. scraper rod; 18. buffer pad. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0021] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] like Figures 1 to 3As shown, a stone crusher for mining comprises a stone crushing box 1, a feeding port 2 is provided on the top of the stone crushing box 1, two crushing rollers 3 for stone crushing are arranged inside the stone crushing box 1, two servo motors 4 for driving the two crushing rollers 3 to rotate are fixedly installed on the rear wall of the stone crushing box 1, a discharge pipe 5 connected with the inside of the stone crushing box 1 is fixedly installed on the bottom of the stone crushing box 1, two U-shaped frames 6 are fixedly installed on the top of the stone crushing box 1, a rotatable rotating shaft 8 is movably installed inside each U-shaped frame 6, four evenly distributed protective plates 9 are fixedly installed on the side wall of each rotating shaft 8, a servo motor 7 for driving the adjacent rotating shaft 8 to rotate is fixedly installed on the side wall of each U-shaped frame 6, and an infrared sensor 10 is fixedly installed on the side where the two U-shaped frames 6 are close to each other (in the technical solution, each infrared sensor 10 is respectively connected to the adjacent servo motor 7 through a wireless signal, and each infrared sensor 10 can control the adjacent servo motor 7 The output end rotates according to a preset angle and speed), two side plates 11 are arranged between the two U-shaped frames 6. It should be noted that the large stones to be crushed are put into the middle of the two U-shaped frames 6. When the two infrared sensors 10 sense the presence of an object, the two infrared sensors 10 respectively control the adjacent servo motors 7 to start, and each servo motor 7 drives the corresponding rotating shaft 8 to rotate ninety degrees, so that the two rotating shafts 8 rotate relative to each other. When rotating, each rotating shaft 8 drives the four protective plates 9 connected to it to rotate synchronously. When the two protective plates 9 located between the two side plates 11 rotate and move away, the large stones can pass through the feed port 2 into the interior of the crushing box 1. Each servo motor 1 4 drives the corresponding crushing roller 3 to rotate, which can crush and separate the large stones entering the crushing box 1, and at this time, the two protective plates 9 are rotated into the middle of the two side plates 11, and the two protective plates 9 located between the two side plates 11 and the two side plates 11 jointly prevent the splashing of small stones.

[0023] like Figure 2 As shown, each protective plate 9 is arranged in an arc surface on one side away from the adjacent rotating shaft 8. It should be noted that the two protective plates 9 located between the two side plates 11 can contact each other on their sides close to each other without affecting the synchronous rotation of each rotating shaft 8 driving the four protective plates 9 connected to it.

[0024] like Figure 2 As shown, two U-shaped frames 6 are provided with two slide grooves 12 on the sides close to each other, and a slide rod 13 is movably installed inside each slide groove 12, and each slide rod 13 is fixedly connected to the adjacent side plate 11. It should be noted that if it is necessary to observe the situation inside the gravel box 1, the side plate 11 can be pulled upward, and the upward movement of the side plate 11 can drive the two slide rods 13 connected to it to slide upward in the corresponding slide grooves 12 respectively.

[0025] like Figure 1As shown, two staggered drainage rods 14 are fixedly installed inside the gravel box 1. The upper drainage rod 14 is set to be inclined downward from left to right, and the lower drainage rod 14 is set to be inclined downward from right to left. It should be noted that the pebbles crushed by the two crushing rollers 3 can first fall to the upper drainage rod 14, and then roll from the upper drainage rod 14 to the lower drainage rod 14. The two drainage rods 14 are mainly used to play a guiding role.

[0026] like Figure 1 , Figure 3 As shown, a servo motor 3 15 is fixedly installed on the rear wall of the gravel box 1, and the output end of the servo motor 3 15 extends to the interior of the gravel box 1, and a connecting rod 16 is fixedly installed on the output end of the servo motor 3 15, and a scraper rod 17 is fixedly installed on the end of the connecting rod 16 away from the output end of the servo motor 3 15. The bottom of the gravel box 1 is arranged in an arc surface. It should be noted that when the servo motor 3 15 is started, the connecting rod 16 is driven to swing back and forth at a preset angle and speed, and the connecting rod 16 then drives the scraper rod 17 to move, so that the scraper rod 17 can be used to deposit gravel on the wall of the gravel box 1 at the bottom.

[0027] like Figure 2 As shown, a buffer pad 18 is fixedly installed on the outside of each protective plate 9. The buffer pad 18 is made of elastic rubber material. It should be noted that the buffer pad 18 can prevent flying stones from directly colliding with the protective plate 9, and has a certain protective effect on the protective plate 9.

[0028] In summary:

[0029] Put the large stones that need to be crushed into the middle of the two U-shaped frames 6. When the two infrared sensors 10 sense the presence of an object, the two infrared sensors 10 respectively control the adjacent servo motors 27 to start. Each servo motor 27 drives the corresponding rotating shaft 8 to rotate ninety degrees, so that the two rotating shafts 8 rotate relative to each other. When rotating, each rotating shaft 8 drives the four protective plates 9 connected to it to rotate synchronously. When the two protective plates 9 located between the two side plates 11 rotate and move away, the large stones can pass through the feed port 2 into the interior of the crushed stone box 1. Each servo motor 14 drives the corresponding crushing roller 3 to rotate to crush and separate the large stones entering the crushed stone box 1. At this time, two protective plates 9 are rotated into the middle of the two side plates 11, and the two protective plates 9 located between the two side plates 11 and the two side plates 11 jointly prevent the splashing of small stones.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A stone crusher for mining, comprising a stone crushing box (1), a feeding port (2) is provided on the top of the stone crushing box (1), two crushing rollers (3) for crushing stones are arranged inside the stone crushing box (1), two servo motors (4) are fixedly installed on the rear wall of the stone crushing box (1) for driving the two crushing rollers (3) to rotate respectively, and a discharge pipe (5) connected to the inside of the stone crushing box (1) is fixedly installed on the bottom of the stone crushing box (1), characterized in that: Two U-shaped frames (6) are fixedly installed on the top of the gravel box (1), a rotatable shaft (8) is movably installed inside each U-shaped frame (6), four evenly distributed protective plates (9) are fixedly installed on the side wall of each shaft (8), a servo motor (7) for driving the adjacent shaft (8) to rotate is fixedly installed on the side wall of each U-shaped frame (6), an infrared sensor (10) is fixedly installed on the side where the two U-shaped frames (6) are close to each other, and two side plates (11) are arranged between the two U-shaped frames (6).

2. A rock crusher for mining according to claim 1, characterized in that: The side of each protection plate (9) away from the adjacent rotating shaft (8) is arranged in the form of an arc surface.

3. A rock crusher for mining according to claim 1, characterized in that: Two sliding grooves (12) are provided on the sides of the two U-shaped frames (6) close to each other, and a sliding rod (13) is movably installed inside each sliding groove (12), and each sliding rod (13) is fixedly connected to the adjacent side plate (11).

4. A rock crusher for mining according to claim 1, characterized in that: Two staggered drainage rods (14) are fixedly installed inside the gravel box (1), the drainage rod (14) located at the top is arranged to be inclined downward from left to right, and the drainage rod (14) located at the bottom is arranged to be inclined downward from right to left.

5. A rock crusher for mining according to claim 1, characterized in that: A servo motor three (15) is fixedly mounted on the rear wall of the crushed stone box (1), the output end of the servo motor three (15) extends into the interior of the crushed stone box (1), a connecting rod (16) is fixedly mounted on the output end of the servo motor three (15), a scraping rod (17) is fixedly mounted on one end of the connecting rod (16) away from the output end of the servo motor three (15), and the bottom of the crushed stone box (1) is arranged in an arc shape.

6. A rock crusher for mining according to claim 1, characterized in that: A buffer pad (18) is fixedly mounted on the outside of each protective plate (9), and the buffer pad (18) is made of elastic rubber material.

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