Automatic crushing device for commercial concrete raw materials

Abstract

The utility model relates to the technical field of automatic crushing devices for concrete raw materials, and discloses an automatic crushing device for commercial concrete raw materials, which comprises a crushing cabin formed by a crushing cabin and a crushing cabin cover hinged and covered on the crushing cabin, bearing seats are fixedly arranged at the two ends of the crushing cabin, a main rotating shaft is rotationally arranged between the bearing seats, a synchronous belt wheel is fixedly arranged at one end of the main rotating shaft through a key and used for being connected with a belt wheel driven by a motor, then the main rotating shaft rotates, and a crushing roller is coaxially and fixedly arranged outside the main rotating shaft in a sleeving mode. Limestone particles (raw materials) enter the crushing cabin from the feeding hopper, part of the raw materials directly enter the crushing roller through the circulating material port, part of the raw materials fall on the arc-shaped screen, but the raw materials can circularly enter the crushing roller to participate in the crushing action with the steel balls under the rotary shoveling action of the shoveling plate, and the crushing effect is greatly improved. And the raw materials are refined until the raw materials can pass through the arc-shaped screen.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic crushing devices for concrete raw materials, in particular to an automatic crushing device for commercial concrete raw materials. Background Art

[0002] The existing patent publication number is (CN220479018U) a limestone crushing device for a cement plant. Its technical solution includes: a bracket, a crushing device body, a rotating structure and a threaded round cover. A groove one is provided at the front end of the bracket. Both sides of the inner wall of the groove one are rotatably connected to the rotating shaft. The rotating shaft is fixed to the crushing device body. A rotating structure is provided on one side of the bracket. A motor is fixed on one side of the bracket. The transmission shaft provided by the motor is rotatably connected to the rotating structure. A rotating shaft is fixed on one side of the transmission shaft provided by the motor. Threaded holes are provided at the upper and lower ends of the crushing device body. A groove two is provided at the bottom end of the inner wall of the threaded hole. The front and rear ends of the inner wall of the groove two are rotatably connected to crushing rollers. The threaded round cover is inserted into the threaded hole and threadedly connected. The utility model has the advantage of being able to repeatedly crush limestone so that the limestone is fully crushed.

[0003] However, it adopts a closed crushing chamber, which requires stopping the machine to discharge and add materials after crushing, which greatly reduces work efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is: in order to overcome the above problems, an automatic crushing device for commercial concrete raw materials is provided, which solves the above problems.

[0005] The utility model solves the technical problem by adopting the following technical solutions:

[0006] The automatic crushing device for commercial concrete raw materials comprises a crushing chamber and a crushing chamber formed by a crushing chamber cover which is hingedly mounted on the crushing chamber, bearing seats are fixedly arranged at both ends of the crushing chamber and a main rotating shaft is rotatably arranged between the bearing seats, a synchronous pulley is fixedly arranged at one end of the main rotating shaft through a key for connecting with a pulley driven by a motor, thereby rotating the main rotating shaft, and a crushing drum is coaxially fixedly arranged on the outside of the main rotating shaft, sieve holes are arranged at intervals on the crushing drum, and strip-shaped circulation material ports are arranged at intervals, and steel balls for crushing the raw materials by rolling, impacting and colliding are placed in the crushing drum, and the diameter of the steel balls is greater than the width of the circulation material port and will not fall out of the circulation material port, and an arc-shaped screen is fixedly arranged at the bottom of the crushing chamber, and the mesh diameter of the arc-shaped screen is consistent with the sieve holes.

[0007] Preferably, a feeding hopper connected to the inner cavity of the pulverizing chamber is welded and fixed on the pulverizing chamber cover to continuously convey materials into the pulverizing chamber, thereby forming a continuous processing flow, which is more convenient than the existing technology and effectively improves the processing efficiency.

[0008] Preferably, shovel plates are fixedly provided at annular intervals on the outer wall surface of the crushing drum, and a strip-shaped rubber plate is fixedly provided on the shovel plates, and the outer edge of the rubber plate abuts against the inner wall of the arc-shaped screen during the rotation of the crushing drum. When the crushing drum rotates, the raw materials are shoveled into the crushing drum through the circulation material port by the shovel plates and the fixed rubber plates and crushed under the action of steel balls.

[0009] Preferably, the strip rubber plate is fixed to the shovel plate by bolts, which facilitates quick replacement of the rubber plate after it is worn.

[0010] Preferably, in order to improve the stability of the arc-shaped screen and reduce the lateral deformation of the arc-shaped screen, a central support beam is fixedly provided at the bottom of the crushing chamber to support the bottom of the arc-shaped screen, so that the arc-shaped screen can withstand greater weight.

[0011] Preferably, a rubber anti-impact sleeve is fixedly mounted on the outside of the main shaft to protect and cushion the main shaft during the rolling of the raw materials and the crushing steel balls, thereby increasing the effective life of the main shaft.

[0012] The advantages and positive effects of the utility model are as follows: limestone particles (raw materials) enter the crushing chamber from the feeding hopper, part of the raw materials directly enter the crushing drum through the circulation material port, and part of the raw materials fall on the arc-shaped screen. However, under the rotating shovel action of the shovel plate, the raw materials will circulate into the crushing drum to participate in the crushing action with the steel balls until the raw materials are refined to the point where they can pass through the arc-shaped screen. Compared with the prior art, the device is more reasonable, can achieve continuous crushing without stopping, and has a good crushing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a schematic diagram of the structure of the utility model (the crushing drum adopts a cutaway view);

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

[0016] Figure 3 It is a schematic diagram of the structure of the utility model when viewed from above.

[0017] The markings in the attached drawings are described as follows: 10, feeding hopper; 11, crushing cabin cover; 12, crushing cabin; 13, synchronous pulley; 14, crushing drum; 15, shovel plate; 16, sieve hole; 17, bearing seat; 18, arc screen; 19, central support beam; 20, main shaft; 22, circulation material port. DETAILED DESCRIPTION

[0018] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0019] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0020] like Figure 1-3 As shown, the commercial concrete raw material automatic crushing device described in the utility model comprises a crushing chamber 12 and a crushing chamber formed by a crushing chamber cover 11 hingedly mounted on the crushing chamber 12, bearing seats 17 are fixedly arranged at both ends of the crushing chamber 12, and a main rotating shaft 20 is rotatably arranged between the bearing seats 17, a synchronous pulley 13 is fixedly arranged at one end of the main rotating shaft 20 through a key for connecting with a pulley driven by a motor, thereby rotating the main rotating shaft 20, and a crushing drum 14 is coaxially fixedly arranged on the outside of the main rotating shaft 20, sieve holes 16 are arranged at intervals on the crushing drum 14, and strip-shaped circulation material ports 22 are also arranged at intervals, and steel balls for crushing the raw materials by rolling, impacting, and colliding are placed in the crushing drum 14, and the diameter of the steel balls is greater than the width of the circulation material port 22 and will not fall out of the circulation material port 22, and an arc-shaped screen 18 is fixedly arranged at the bottom of the crushing chamber 12, and the mesh diameter of the arc-shaped screen 18 is consistent with the sieve holes 16.

[0021] Preferably, a feeding hopper 10 connected to the inner cavity of the pulverizing chamber 12 is welded and fixed on the pulverizing chamber cover 11, which is used to continuously transport materials into the pulverizing chamber 12, thereby forming a continuous processing flow, which is more convenient than the existing technology and effectively improves the processing efficiency.

[0022] Preferably, shovel plates 15 are fixedly provided at annular intervals on the outer wall surface of the pulverizing drum 14, and a strip-shaped rubber plate is fixedly provided on the shovel plate 15, and the outer edge of the rubber plate abuts against the inner wall of the arc-shaped screen 18 during the rotation of the pulverizing drum 14. When the pulverizing drum 14 rotates, the raw materials are shoveled into the pulverizing drum 14 through the circulation material port 22 by the shovel plates 15 and the fixed rubber plate and pulverized under the action of steel balls.

[0023] Preferably, the strip rubber plate is fixed to the shovel plate 15 by bolts, so that the rubber plate can be quickly replaced after being worn.

[0024] Preferably, in order to improve the stability of the arc-shaped screen 18 and reduce the lateral deformation of the arc-shaped screen 18, a central support beam 19 is fixedly provided at the bottom of the crushing chamber 12 to support the bottom of the arc-shaped screen 18, so that the arc-shaped screen 18 can withstand greater weight.

[0025] Preferably, a rubber anti-impact sleeve is also fixedly mounted on the outside of the main rotating shaft 20 to protect and cushion the main rotating shaft 20 during the rolling process of the raw materials and the crushing steel balls, thereby increasing the effective life of the main rotating shaft 20.

[0026] During specific implementation, limestone particles (raw materials) enter the crushing chamber 12 from the feeding hopper 10, part of the raw materials directly enter the crushing drum 14 through the circulation port 22, and part of the raw materials fall on the arc screen 18. However, under the rotating shovel action of the shovel plate 15, the raw materials will circulate into the crushing drum 14 to participate in the crushing action with the steel balls until the raw materials are refined to the point that they can pass through the arc screen 18. Compared with the prior art, this device is more reasonable, can achieve continuous crushing without stopping, and has a good crushing effect.

[0027] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific implementation manner. Any other implementation manners derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. Automatic crushing device for commercial concrete raw materials, characterized by: The invention relates to a pulverizing chamber (12) and a pulverizing chamber cover (11) which is hingedly mounted on the pulverizing chamber (12), wherein bearing seats (17) are fixedly arranged at both ends of the pulverizing chamber (12), and a main rotating shaft (20) is rotatably arranged between the bearing seats (17), a synchronous pulley (13) is fixedly arranged at one end of the main rotating shaft (20) through a key for connecting with a pulley driven by a motor, thereby rotating the main rotating shaft (20), and a pulverizing chamber (12) is coaxially fixedly arranged on the outside of the main rotating shaft (20) A crushing drum (14), wherein sieve holes (16) are arranged at intervals on the crushing drum (14), and strip-shaped circulation ports (22) are also arranged at intervals, and steel balls are placed in the crushing drum (14) to crush the raw materials by rolling, impacting and colliding, and the diameter of the steel balls is greater than the width of the circulation port (22) and will not fall out of the circulation port (22), and an arc-shaped screen (18) is fixedly provided at the bottom of the crushing chamber (12), and the mesh diameter of the arc-shaped screen (18) is consistent with the sieve holes (16).

2. The automatic crushing device for commercial concrete raw materials according to claim 1 is characterized in that: A feeding hopper (10) is welded and fixedly provided on the pulverizing chamber cover (11) and is communicated with the inner cavity of the pulverizing chamber (12) for continuously conveying materials into the pulverizing chamber (12).

3. The automatic crushing device for commercial concrete raw materials according to claim 2 is characterized in that: Shovel plates (15) are fixedly provided at annular intervals on the outer wall surface of the pulverizing drum (14), and a strip-shaped rubber plate is fixedly provided on the shovel plates (15). The outer edge of the rubber plate abuts against the inner wall of the arc-shaped screen (18) during the rotation of the pulverizing drum (14). When the pulverizing drum (14) rotates, the raw materials are shoveled into the pulverizing drum (14) through the circulation material port (22) by the shovel plates (15) and the fixed rubber plate, and pulverized under the action of steel balls.

4. The automatic crushing device for commercial concrete raw materials according to claim 3 is characterized in that: The strip rubber plate is fixed on the shovel plate (15) by means of bolts.

5. The automatic crushing device for commercial concrete raw materials according to claim 4 is characterized in that: In order to improve the stability of the arc-shaped screen (18) and reduce the lateral deformation of the arc-shaped screen (18), a central support beam (19) is fixedly provided at the bottom of the crushing chamber (12) for supporting the bottom of the arc-shaped screen (18).

6. The automatic crushing device for commercial concrete raw materials according to claim 5 is characterized in that: A rubber anti-impact sleeve is also fixedly mounted on the outside of the main rotating shaft (20) to protect and buffer the main rotating shaft (20) during the rolling process of the raw materials and the crushing steel balls.

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