Calcium carbonate stone grading device

Abstract

The utility model discloses a calcium carbonate stone grading device, which belongs to the technical field of stone grading, and comprises a hollow enclosure frame and a sieve hopper positioned between the inner circumferences of the enclosure frame, the enclosure frame is fixed in an erecting or bottom bolt fixing manner, and the centers of the two sides of the sieve hopper are rotatably connected with the inner wall of the enclosure frame. The edge of the top of the screen hopper is designed in a protruding mode, the two sides of the screen hopper are designed in an inclined mode, a plurality of grading screen meshes with different mesh numbers are embedded in the bottom of the screen hopper, discharging openings are formed in the bottoms of the grading screen meshes, and concave cavities are formed in the ends of the two sides of the top of the surrounding frame. Traction rods are arranged at the bottoms of the concave cavity and the protruding part of the edge of the screening hopper, and displacement screws and nut sleeves for driving the traction rods to move are arranged on the inner circumference of the concave cavity. According to the calcium carbonate stone grading device, through swinging of the screening hopper and stirring of stone in the screening hopper, compared with an existing device, the grading and screening efficiency can be further greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of stone classification, in particular to a calcium carbonate stone classification device. Background Art

[0002] From the perspective of water permeability, stone belongs to gravel and water-permeable materials. The bridge buildings in the road and stone production line are not only subject to the complex force system of vehicle loads, but also to the adverse effects of various complex natural factors. The construction materials must have certain mechanical properties. Stone grading is divided and classified according to the physical properties and uses of the stone. Among them, calcium carbonate stone is one of the commonly used stones. The existing calcium carbonate stone grading requires the use of a grading device. Most of the existing grading devices use screens with different mesh sizes to achieve grading, which is inefficient and troublesome.

[0003] A concrete preparation gravel grading and screening device with publication number CN220239293U adopts a first auger, a second auger and a third auger. The first auger, the second auger and the third auger synchronously transport and turn over the gravel during rotation, avoiding agglomeration of gravel and clogging of the sieve holes, improving the smoothness and stability of continuous screening, and the first auger, the second auger and the third auger make little noise when rotating, and have less noise pollution compared to traditional vibration motors. The grading method is improved only by the auger movement, and the efficiency of grading can be improved. Utility Model Content

[0004] The utility model aims to provide a calcium carbonate stone grading device to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a calcium carbonate stone grading device, comprising a hollow frame and a screen bucket located between the inner circumference of the frame, the frame is fixed by erection or bottom bolt fixing, the two side centers of the screen bucket are rotatably connected to the inner wall of the frame, the top edge of the screen bucket is protruding, and the two sides of the screen bucket are inclined, the bottom of the screen bucket is embedded with a plurality of grading screens with different mesh sizes, and the bottom of the grading screen is provided with a discharge port, concave cavities are provided at the two side ends of the top of the frame, and the concave cavity and the bottom of the protruding part of the edge of the screen bucket are provided with pull rods, and the inner circumference of the concave cavity is provided with a displacement screw and a nut sleeve for driving the pull rod to move.

[0006] In a further embodiment, a lower half of the inner circumference of the screen bucket is rotatably connected to a plurality of center rods, and an outer circumference of the center rods is connected to a plurality of stirring blades.

[0007] In a further embodiment, both ends of the displacement screw are rotatably connected to the inner circumference of the concave cavity through bearings, and the outer circumferential threaded sleeve of the displacement screw is provided with a nut sleeve.

[0008] In a further embodiment, the outer circumference of the nut sleeve is matched with the inner circumference of the concave cavity, and the two ends of the pull rod are respectively hinged to the nut sleeve and the bottom of the edge of the screen bucket.

[0009] In a further embodiment, one end of the plurality of center rods passes through the screen bucket and is connected to a driving gear, and a transmission gear is disposed on one side adjacent to the plurality of driving gears.

[0010] In a further embodiment, the outer periphery of the transmission gear is meshed with the corresponding two driving gears, and the center of the transmission gear is rotationally connected to the screen bucket.

[0011] In a further embodiment, a rotating motor is installed at both ends of one side of the frame, and a driving end of the rotating motor passes through the frame and is connected to one end of the displacement screw.

[0012] In a further embodiment, a soft material receiving bucket is bonded and fixed between the top of the discharge port and the corresponding grading screen.

[0013] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0014] The threaded connection between the displacement screw and the nut sleeve and the matching design between the nut sleeve and the inner circumference of the concave cavity, the connection design between the rotating motor and one end of the displacement screw and the design of the pull rod between the nut sleeve and the bottom of the protruding part along the edge of the screen bucket, and the hinge design at both ends of the pull rod, when the corresponding multiple rotating motors are synchronously operated, the nut sleeve can be synchronously moved, so that the corresponding two pull rods are respectively lifted and lowered, so that the screen bucket can swing and screen;

[0015] The multiple center rods in the lower part of the inner periphery of the screen bucket and the stirring blades on the outer periphery of the center rod are connected. The meshing design of the driving gear and the transmission gear connected to one end of the center rod, combined with the connection design of the rotating motor and the center rod, when the rotating motor is running, it can further drive the multiple stirring blades to rotate, stir the internal stones, and assist in grading and screening.

[0016] The calcium carbonate stone grading device can greatly improve the efficiency of grading and screening materials by swinging the screen bucket and stirring the stones inside the screen bucket compared with the existing devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 For the utility model Figure 1 A magnified view of the structure at center A;

[0020] Figure 3 It is a structural schematic diagram of the central rod of the utility model;

[0021] Figure 4 For the utility model Figure 1 A magnified view of the structure at B in the middle.

[0022] Description of reference numerals:

[0023] 1. Frame; 2. Screen bucket; 3. Grading screen; 4. Center rod; 5. Stirring blades; 6. Rotating motor; 7. Concave cavity; 8. Pull rod; 9. Soft material receiving bucket; 10. Discharge port;

[0024] 21. Driving gear; 22. Transmission gear;

[0025] 31. Displacement screw; 32. Nut sleeve; 33. Rotation motor. DETAILED DESCRIPTION

[0026] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0027] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0028] The connection method can be bonding, welding, bolt connection, etc., depending on actual needs.

[0029] See also Figures 1 to 4 The main structure of the device body is a frame 1 and a sieve bucket 2. The interior of the frame 1 is hollow, and the sieve bucket 2 is located on the inner periphery of the frame 1. The centers of both sides of the sieve bucket 2 are rotatably connected to the inner wall of the frame 1 through a rotating shaft.

[0030] The top edge of the screen bucket 2 is designed as a protruding structure, and the two sides of the screen bucket 2 are designed as inclined slopes. The bottom of the screen bucket 2 is embedded with multiple grading screens 3 with different mesh sizes, and a discharge port 10 is arranged below the multiple grading screens 3. A soft material receiving bucket 9 is bonded between the top of the discharge port 10 and the corresponding grading screen 3, and the soft material receiving bucket 9 is made of soft material.

[0031] See also Figure 1 , Figure 3 and Figure 4 In order to stir the internal stones, the lower half of the inner circumference of the screen bucket 2 is rotatably connected to a center rod 4, and the outer circumference of the center rod 4 is connected to a plurality of stirring blades 5. A rotating motor 6 is installed on one side of the screen bucket 2, and the driving end of the rotating motor 6 passes through the screen bucket 2 and is connected to one of the center rods 4;

[0032] In order to achieve driving, one end of the center rod 4 passes through the screen bucket 2 and is connected to a driving gear 21. A transmission gear 22 is arranged between the multiple driving gears 21. The center of the transmission gear 22 is rotatably connected to the side wall of the screen bucket 2. The multiple driving gears 21 and the multiple transmission gears 22 are arranged in a straight line and mesh with each other. When one gear rotates, all gears can be driven to rotate.

[0033] See also Figure 1 and Figure 2 In order to realize the swing screening movement, concave cavities 7 are opened at both ends of the top of the enclosure 1. The inner circumference of the concave cavity 7 is rotatably connected with a displacement screw 31 through a bearing. A rotating motor 33 matching the number of displacement screws 31 is installed on the outer side of the enclosure 1. The driving end of the rotating motor 33 passes through the enclosure 1 and is connected to one end of the corresponding displacement screw 31 through a coupling.

[0034] The outer thread sleeve of the displacement screw 31 is provided with a nut sleeve 32, the outer periphery of the nut sleeve 32 is adapted to the inner periphery of the concave cavity 7, and a pull rod 8 is provided between the nut sleeve 32 and the end side of the protruding portion of the top edge of the screen bucket 2, and the two ends of the pull rod 8 are movably connected by hinged connection, and the hinge can be achieved by a side plate and a centrally penetrating latch;

[0035] It should be noted that the two pulling rods 8 on the same side move synchronously, one pushes up one end of the sieve bucket 2, and the other pulls down one end of the sieve bucket 2, to further achieve swinging.

[0036] The above-mentioned components and electrical equipment are all existing technologies or existing feasible technologies. The working principles, sizes and models are irrelevant to the functions of this application, so they are not described in detail, and they are all controlled by remote control switches.

[0037] How it works

[0038] The calcium carbonate stone grading device can be used by fixing or erecting the bottom of the frame 1 to the outside.

[0039] Calcium carbonate stone is input from the top of the screen bucket 2, and the rotating motor 33 is started to drive the displacement screw 31 to rotate, so that the nut sleeve 22 moves synchronously, so that the two pull rods 8 move synchronously, and further the screen bucket 2 swings, and the stone can be screened in coordination with the screening of the grading screen 3;

[0040] At the same time, the rotating motor 6 is started to drive the central rod 4 to rotate, so that the stirring blade 5 rotates, the stone is moved for a second time, and the material screening is carried out. Stones of different sizes pass through the grading screen 3, and are discharged through the soft material receiving bucket 9 and the discharge port 10 for classification and collection.

[0041] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0042] 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. Calcium carbonate stone grading device, comprising: A surrounding frame (1), wherein the surrounding frame (1) is designed to be hollow inside, and the surrounding frame (1) is fixed by means of erection or bottom bolt fixing; A sieve bucket (2), wherein the sieve bucket (2) is located between the inner periphery of the surrounding frame (1), and the centers of both sides of the sieve bucket (2) are rotatably connected to the inner wall of the surrounding frame (1); Features: The top edge of the sieve bucket (2) is designed to be protruding, and the two sides of the sieve bucket (2) are designed to be inclined. The bottom of the sieve bucket (2) is embedded with a plurality of graded screens (3) with different mesh sizes, and the bottom of the graded screens (3) is provided with a discharge port (10). The top and side ends of the surrounding frame (1) are both provided with concave cavities (7), and the bottom of the concave cavity (7) and the protruding part of the edge of the sieve bucket (2) are both provided with a pulling rod (8), and the inner periphery of the concave cavity (7) is provided with a displacement screw (31) and a nut sleeve (32) for driving the pulling rod (8) to move.

2. The calcium carbonate stone classification device according to claim 1, characterized in that: The lower half of the inner circumference of the sieve bucket (2) is rotatably connected to a plurality of center rods (4), and the outer circumference of the center rods (4) is connected to a plurality of stirring blades (5).

3. The calcium carbonate stone classification device according to claim 1, characterized in that: The two ends of the displacement screw rod (31) are rotatably connected to the inner circumference of the concave cavity (7) via bearings, and a nut sleeve (32) is provided on the outer circumference thread sleeve of the displacement screw rod (31).

4. The calcium carbonate stone classification device according to claim 3, characterized in that: The outer periphery of the nut sleeve (32) is matched with the inner periphery of the concave cavity (7), and the two ends of the pulling rod (8) are respectively hinged to the bottom of the nut sleeve (32) and the edge of the screen bucket (2).

5. The calcium carbonate stone classification device according to claim 2, characterized in that: One end of the plurality of center rods (4) passes through the screen bucket (2) and is connected to a driving gear (21), and a transmission gear (22) is provided on one side adjacent to the plurality of driving gears (21).

6. The calcium carbonate stone classification device according to claim 5, characterized in that: The outer periphery of the transmission gear (22) is meshed with the corresponding two driving gears (21), and the center of the transmission gear (22) is rotationally connected to the screen bucket (2).

7. The calcium carbonate stone classification device according to claim 1, characterized in that: A rotating motor (33) is installed at both ends of one side of the surrounding frame (1), and a driving end of the rotating motor (33) passes through the surrounding frame (1) and is connected to one end of the displacement screw rod (31).

8. The calcium carbonate stone classification device according to claim 1, characterized in that: A soft material receiving bucket (9) is bonded and fixed between the top of the discharge port (10) and the corresponding grading screen (3).

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