Machine-made sand grinding device

Abstract

The utility model discloses a machine-made sand grinding device, and relates to the technical field of machine-made sand preparation, the machine-made sand grinding device comprises a rack, one side of the top end of the rack is fixedly connected with a feed hopper, the lower surface of the feed hopper is fixedly connected with a crusher, one side of the top end of the rack is fixedly connected with a crushing motor, one end of the crushing motor is fixedly connected with the side wall of the crusher, and the other end of the crushing motor is fixedly connected with the crusher. A grinding cylinder is fixedly connected to the middle of the interior of the rack, a main shaft is rotatably connected to the center of the interior of the grinding cylinder, a conical grinding table is fixedly connected to the center of the interior of the grinding cylinder, a grinding roller is fixedly connected to the outer wall of the main shaft, a grinding motor is fixedly connected to the center of the bottom end of the rack, and a discharging pipe is fixedly connected to one side of the bottom end of the rack. According to the machine-made sand grinding device, the crusher and the grinding cylinder are arranged, machine-made sand raw materials are crushed and ground respectively, equivalently, secondary grinding is carried out, and the machine-made sand grinding quality and the machining efficiency are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machine-made sand preparation, in particular to a machine-made sand grinding device. Background Art

[0002] Nowadays, river sand resources have become increasingly scarce. In order to solve the aggregate problem of concrete production, artificial sand produced on a large scale in quarries is used to replace river sand. Artificial sand refers to sand processed by sand making machines and other ancillary equipment. The finished product is more regular and can be processed into sand of different rules and sizes according to different process requirements, which can better meet daily needs. Artificial sand requires professional equipment to produce qualified and applicable sand and gravel.

[0003] Most of the existing machine-made sand grinding processes only have one grinding process and do not have a secondary grinding channel. Particles that do not meet the requirements need to be screened by operators and sent back to the machine for secondary grinding. The process is cumbersome and wastes manpower, reducing the production quality of machine-made sand and the work efficiency of the production line. Utility Model Content

[0004] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a machine-made sand grinding device.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a machine-made sand grinding device, comprising a frame, a feed hopper is fixedly connected to one side of the top of the frame, a crusher is fixedly connected to the lower surface of the feed hopper, a crushing motor is fixedly connected to one side of the top of the frame, one end of the crushing motor is fixedly connected to the side wall of the crusher, a grinding cylinder is fixedly connected to the middle of the frame, a main shaft is rotatably connected to the center of the grinding cylinder, a conical grinding table is fixedly connected to the center of the grinding cylinder, a grinding roller is fixedly connected to the outer wall of the main shaft, a grinding motor is fixedly connected to the center of the bottom end of the frame, and a discharge pipe is fixedly connected to one side of the bottom end of the frame.

[0006] In the above-mentioned crusher, the two side walls are rotatably connected with active crushing rollers through bearings, the outer wall of the active crushing roller is fixedly connected with a plurality of blades, the blades are evenly spaced and spirally distributed, the outer wall of one end of the active crushing roller is fixedly sleeved with a gear 1, and one end of the active crushing roller is fixedly connected to the output shaft of the crushing motor.

[0007] As mentioned above, the outer wall of the active crushing roller is movably connected to the driven crushing roller, and the outer wall of the driven crushing roller is fixedly connected to a plurality of blades, and the blades are evenly spaced and spirally distributed. One end of the driven crushing roller is fixedly connected to gear 2, and the gear 2 is meshed with the outer wall of gear 1. A funnel is fixedly connected to the bottom of the crusher. A pair of crushing rollers can quickly crush the machine-made sand to obtain uniform coarse material machine-made sand.

[0008] As mentioned above, a feed inlet is provided on one side of the upper surface of the grinding cylinder, a fine material filter plate is fixedly connected to the inside of the grinding cylinder, a plurality of positioning holes are provided on the surface of the fine material filter plate, a plurality of positioning pins are fixedly connected to the lower surface of the conical grinding table, the conical grinding table is fixedly connected to the upper surface of the fine material filter plate through the positioning pins, a discharge port is provided on one side of the bottom end of the grinding cylinder, and the discharge port is conical in shape.

[0009] As mentioned above, the main shaft passes through the bottom end of the grinding cylinder and is rotatably connected to the inner center of the grinding cylinder through a bearing. A coarse material filter plate is fixedly connected to the top end of the main shaft. The coarse material filter plate is in an "umbrella" shape, and a knife disc is fixedly connected to the outer wall of the middle part of the main shaft.

[0010] As mentioned above, the top end of the grinding roller is evenly sleeved on the outer wall of the cutter disc through a bearing, the bottom end of the grinding roller is rotatably connected to a pulley, the outer wall of the pulley is slidably connected to a slide rail, the slide rail is fixedly connected to the inner wall of the grinding cylinder, the grinding roller is located above the conical surface of the conical grinding table, and extrusion grinding is performed through the gap between the grinding roller and the conical grinding table.

[0011] As mentioned above, the outer wall of the discharge pipe is sleeved with a bracket, the bracket is welded to the side of the bottom end of the frame, and the top end of the discharge pipe is sleeved on the discharge port.

[0012] Compared with the prior art, this machine-made sand grinding device has the following beneficial effects:

[0013] 1. The utility model is provided with a crusher at the top of a frame, a pair of crushing rollers are provided inside the crusher, a plurality of blades are spirally distributed at equal intervals on the outer wall of the crushing roller, the blades between the active crushing roller and the driven crushing roller are arranged crosswise, and the active crushing roller starts to rotate under the drive of the crushing motor, and the gear 1 fixed at one end of the active crushing roller and the gear 2 meshing with the outer wall of the gear 1 start to rotate synchronously, and the two have the same number of teeth, and can realize equal speed and reverse rotation, so that the adjacent blades crush the material to obtain relatively uniform machine-made sand coarse material.

[0014] 2. The utility model arranges a grinding cylinder under the crusher, and the machine-made sand coarse material after being crushed by the crusher enters the grinding cylinder through the funnel, and is evenly dropped between the grinding roller and the conical grinding table by the movement of the coarse material filter plate. The grinding roller is driven by the grinding motor, and there is a certain gap between the grinding tube and the conical grinding table, so that the machine-made sand fine material that meets the use requirements is ground.

[0015] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and study, or may be taught from the practice of the present invention to some extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure axonometric of the utility model;

[0018] Figure 3 It is a schematic cross-sectional view of the three-dimensional structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the crusher of the utility model;

[0020] Figure 5 It is a semi-axonometric cross-sectional schematic diagram of the grinding mechanism of the utility model;

[0021] Figure 6 It is a cross-sectional schematic diagram of the grinding mechanism of the utility model.

[0022] In the figure: 1. frame; 2. feed hopper; 3. crusher; 301. active crushing roller; 302. blade; 303. gear one; 304. driven crushing roller; 305. gear two; 306. funnel; 4. crushing motor; 5. grinding cylinder; 501. feed inlet; 502. fine material filter plate; 503. discharge port; 6. main shaft; 601. coarse material filter plate; 602. knife disc; 7. conical grinding table; 701. positioning pin; 8. grinding roller; 801. pulley; 802. slide rail; 9. grinding motor; 10. discharge pipe; 101. bracket. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1-6 As shown, the utility model provides a technical solution: a machine-made sand grinding device, comprising a frame 1, a feed hopper 2 is fixedly connected to one side of the top of the frame 1, a crusher 3 is fixedly connected to the lower surface of the feed hopper 2, a crushing motor 4 is fixedly connected to one side of the top of the frame 1, one end of the crushing motor 4 is fixedly connected to the side wall of the crusher 3, a grinding cylinder 5 is fixedly connected to the middle of the inside of the frame 1, a main shaft 6 is rotatably connected to the center of the grinding cylinder 5, a conical grinding table 7 is fixedly connected to the center of the grinding cylinder 5, a grinding roller 8 is fixedly connected to the outer wall of the main shaft 6, a grinding motor 9 is fixedly connected to the center of the bottom end of the frame 1, and a discharge pipe 10 is fixedly connected to one side of the bottom end of the frame 1.

[0025] Utilizing the overall structure of the device, when performing machine-made sand grinding processing, the machine-made sand raw material is transported to the feed hopper 2 through the on-site material transportation system, and enters the crusher 3 through the feed hopper 2. Driven by the crushing motor 4, the crusher 3 crushes the machine-made sand raw material to obtain machine-made sand coarse material. The crushed machine-made sand coarse material enters the grinding cylinder 5. Driven by the grinding motor 9, the main shaft 6 of the grinding cylinder 5 starts to rotate, and the grinding roller 8 fixedly connected to the outer wall of the main shaft 6 starts to rotate on the upper surface of the conical grinding table 7. The gap between the grinding roller 7 and the conical grinding table 8 grinds the machine-made sand coarse material, and finally the ground machine-made sand fine material is discharged through the discharge pipe 10.

[0026] like Figure 1-6 As shown, the two side walls of the crusher 3 are rotatably connected with active crushing rollers 301 through bearings, the outer wall of the active crushing roller 301 is fixedly connected with a plurality of blades 302, the blades 302 are evenly spaced and spirally distributed, the outer wall of one end of the active crushing roller 301 is fixedly sleeved with a gear 1 303, one end of the active crushing roller 301 is fixedly connected to the output shaft of the crushing motor 4, the outer wall of the active crushing roller 301 is movably connected with a driven crushing roller 304, the outer wall of the driven crushing roller 304 is fixedly connected with a plurality of blades 302, the blades 302 are evenly spaced and spirally distributed, one end of the driven crushing roller 304 is fixedly connected with a gear 2 305, the gear 2 305 is meshed with the outer wall of the gear 1 303, and a funnel 306 is fixedly connected to the bottom of the crusher 3.

[0027] When the device is performing machine-made sand grinding processing, the crushing motor 4 is started through the control system, and the crushing motor 4 starts to rotate. Driven by the crushing motor 4, the gear 1 303 fixedly connected thereto starts to rotate, and the active crushing roller 301 coaxial with the gear 1 303 also rotates synchronously, and the gear 2 305 meshing with the gear 1 303 starts to rotate in the opposite direction at a constant speed. The blades 302 on the outer walls of the active crushing roller 301 and the driven crushing roller 304 are staggered, and the machine-made sand raw materials are quickly crushed under the action of the crushing motor 4 to obtain machine-made sand coarse materials.

[0028] like Figure 1-6As shown, a feed inlet 501 is provided on one side of the upper surface of the grinding cylinder 5, a fine material filter plate 502 is fixedly connected inside the grinding cylinder 5, a plurality of positioning holes are provided on the surface of the fine material filter plate 502, a plurality of positioning pins 701 are fixedly connected to the lower surface of the conical grinding table 7, the conical grinding table 7 is fixedly connected to the upper surface of the fine material filter plate 502 through the positioning pins 701, a discharge port 503 is provided on one side of the bottom end of the grinding cylinder 5, the discharge port 503 is in a cone shape, the main shaft 6 passes through the bottom end of the grinding cylinder 5, and is connected to the grinding cylinder 5 through the main shaft 6. The bearing is rotatably connected to the inner center of the grinding cylinder 5, the top of the main shaft 6 is fixedly connected to a coarse material filter plate 601, the coarse material filter plate 601 is in an "umbrella" shape, the middle outer wall of the main shaft 6 is fixedly connected to a cutter disc 602, the top of the grinding roller 8 is evenly sleeved on the outer wall of the cutter disc 602 through a bearing, the bottom end of the grinding roller 8 is rotatably connected to a pulley 801, the outer wall of the pulley 801 is slidably connected to a slide rail 802, the slide rail 802 is fixedly connected to the inner wall of the grinding cylinder 5, and the grinding roller 8 is located above the conical surface of the conical grinding table 7.

[0029] After being crushed by the crusher 3, the machine-made sand coarse material enters the grinding cylinder 5 through the feed port 501 along the funnel 306, and the grinding motor 9 is started by the control system. Driven by the grinding motor 9, the main shaft 6 starts to rotate, and the coarse material filter plate 601 fixed on the outer wall of the main shaft 6 also starts to rotate, and the machine-made sand coarse material that falls in is moved, so that the machine-made sand coarse material can fall evenly onto the upper surface of the conical grinding table 7, and then the cutter head 602 drives the grinding roller 8 to start rotating, and the pulley 801 at the bottom end of the grinding roller 8 starts to rotate along the slide rail 802 fixed on the inner wall of the grinding cylinder 5. The gap between the grinding roller 8 and the conical grinding table 7 realizes the grinding of the machine-made sand coarse material, thereby moving the machine-made sand fine material and evenly sliding to the discharge port 503 through the fine material filter plate 502. The fine material filter plate 502 can effectively prevent the accumulation of fine material.

[0030] like Figure 1-6 As shown, the outer wall of the discharge pipe 10 is sleeved with a bracket 101 , the bracket 101 is welded to the side of the bottom end of the frame 1 , and the top end of the discharge pipe 10 is sleeved on the discharge port 503 .

[0031] After the grinding process, the machine-made sand fine material enters the discharge pipe 10 through the discharge port 503 and is discharged for collection.

[0032] Working principle: Utilizing the overall structure of the device, when the machine-made sand grinding process is carried out, the machine-made sand raw material is transported to the feed hopper 2 through the on-site material transportation system, and enters the crusher 3 through the feed hopper 2. Driven by the crushing motor 4, the crusher 3 crushes the machine-made sand raw material to obtain machine-made sand coarse material. The crushed machine-made sand coarse material enters the grinding cylinder 5. Driven by the grinding motor 9, the main shaft 6 of the grinding cylinder 5 starts to rotate, and the grinding roller 8 fixedly connected to the outer wall of the main shaft 6 starts to rotate on the upper surface of the conical grinding table 7. The grinding roller 7 The gap between the machine-made sand coarse material and the conical grinding table 8 is used to grind the machine-made sand fine material, and finally the machine-made sand fine material is discharged through the discharge pipe 10. When the device is performing machine-made sand grinding processing, the crushing motor 4 is started by the control system, and the crushing motor 4 starts to rotate. Driven by the crushing motor 4, the gear 1 303 fixedly connected thereto starts to rotate, and the active crushing roller 301 coaxial with the gear 1 303 also rotates synchronously, and the gear 2 305 meshing with the gear 1 303 starts to rotate in the opposite direction at a constant speed, and the active crushing roller 301 and the gear 2 305 meshing with the gear 1 303 rotate in the opposite direction at a constant speed. The blades 302 on the outer wall of the movable crushing roller 304 are arranged in a staggered manner. Under the action of the crushing motor 4, the machine-made sand raw material is quickly crushed to obtain machine-made sand coarse material. The machine-made sand coarse material after crushing by the crusher 3 enters the grinding cylinder 5 through the feed port 501 along with the funnel 306. The grinding motor 9 is started by the control system. Driven by the grinding motor 9, the main shaft 6 starts to rotate, and the coarse material filter plate 601 fixed on the outer wall of the main shaft 6 also starts to rotate, and the machine-made sand coarse material that falls in is moved, so that the machine-made sand coarse material can fall evenly into the cone. The upper surface of the conical grinding table 7 is then driven by the cutter disc 602 to rotate the grinding roller 8, and the pulley 801 at the bottom end of the grinding roller 8 starts to rotate along the slide rail 802 fixed on the inner wall of the grinding cylinder 5. The gap between the grinding roller 8 and the conical grinding table 7 realizes the grinding of the machine-made sand coarse material, thereby moving the machine-made sand fine material and evenly sliding to the discharge port 503 through the fine material filter plate 502. The fine material filter plate 502 can effectively prevent the accumulation of fine material. The machine-made sand fine material after the grinding process enters the discharge pipe 10 through the discharge port 503 and is discharged and collected.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A machine-made sand grinding device, comprising a frame (1), characterized in that: A feed hopper (2) is fixedly connected to one side of the top of the frame (1), a crusher (3) is fixedly connected to the lower surface of the feed hopper (2), a crusher motor (4) is fixedly connected to one side of the top of the frame (1), one end of the crusher motor (4) is fixedly connected to the side wall of the crusher (3), a grinding cylinder (5) is fixedly connected to the middle of the frame (1), a main shaft (6) is rotatably connected to the center of the grinding cylinder (5), a conical grinding table (7) is fixedly connected to the center of the grinding cylinder (5), a grinding roller (8) is fixedly connected to the outer wall of the main shaft (6), a grinding motor (9) is fixedly connected to the center of the bottom of the frame (1), and a discharge pipe (10) is fixedly connected to one side of the bottom of the frame (1).

2. The machine-made sand grinding device according to claim 1, characterized in that: The two side walls of the crusher (3) are rotatably connected to active crushing rollers (301) via bearings; the active crushing roller (301) is fixedly connected to a plurality of blades (302) on the outer wall of the active crushing roller (301); the blades (302) are evenly spaced and distributed in a spiral pattern; a gear 1 (303) is fixedly sleeved on the outer wall of one end of the active crushing roller (301); and one end of the active crushing roller (301) is fixedly connected to the output shaft of a crushing motor (4).

3. The machine-made sand grinding device according to claim 2, characterized in that: The outer wall of the active crushing roller (301) is movably connected to a driven crushing roller (304), and the outer wall of the driven crushing roller (304) is fixedly connected to a plurality of blades (302), and the blades (302) are evenly spaced and distributed in a spiral pattern. One end of the driven crushing roller (304) is fixedly connected to a second gear (305), and the second gear (305) is meshed with the outer wall of a first gear (303). A funnel (306) is fixedly connected to the bottom of the crusher (3).

4. The machine-made sand grinding device according to claim 1, characterized in that: A feed port (501) is provided on one side of the upper surface of the grinding cylinder (5); a fine material filter plate (502) is fixedly connected inside the grinding cylinder (5); a plurality of positioning holes are provided on the surface of the fine material filter plate (502); a plurality of positioning pins (701) are fixedly connected to the lower surface of the conical grinding table (7); the conical grinding table (7) is fixedly connected to the upper surface of the fine material filter plate (502) via the positioning pins (701); a discharge port (503) is provided on one side of the bottom end of the grinding cylinder (5); and the discharge port (503) is conical in shape.

5. The machine-made sand grinding device according to claim 1, characterized in that: The main shaft (6) passes through the bottom end of the grinding cylinder (5) and is rotatably connected to the inner center of the grinding cylinder (5) through a bearing. A coarse material filter plate (601) is fixedly connected to the top end of the main shaft (6). The coarse material filter plate (601) is in an "umbrella" shape. A knife disc (602) is fixedly connected to the outer wall of the middle part of the main shaft (6).

6. The machine-made sand grinding device according to claim 1, characterized in that: The top end of the grinding roller (8) is evenly sleeved on the outer wall of the cutter disc (602) through a bearing, the bottom end of the grinding roller (8) is rotatably connected to a pulley (801), the outer wall of the pulley (801) is slidably connected to a slide rail (802), the slide rail (802) is fixedly connected to the inner wall of the grinding cylinder (5), and the grinding roller (8) is located above the conical surface of the conical grinding table (7).

7. The machine-made sand grinding device according to claim 1, characterized in that: The outer wall of the discharge pipe (10) is sleeved with a bracket (101), the bracket (101) is welded to the side of the bottom end of the frame (1), and the top end of the discharge pipe (10) is sleeved on the discharge port (503).

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