Grain grading machine for machine-made sand and crushing device thereof

Abstract

The utility model discloses a grain grading machine for machine-made sand and a crushing device of the grain grading machine, and relates to the field of machine-made sand crushing and distributing equipment.The grain grading machine comprises a crushing box body and a stirring cavity located in the crushing box body, and a mounting opening connected with the stirring cavity in the crushing box body is formed in the side wall of the crushing box body; and the crushing box body is detachably connected with a mounting plate for blocking the mounting opening. And when the stirring blades need to be maintained or replaced, the stirring shaft and the stirring blades can be taken out from the crushing box body by dismounting the mounting plate, so that the purpose of rapidly replacing or maintaining the stirring blades is achieved. And meanwhile, the interior of the crushing box body is convenient to clean.

Description

Technical Field

[0001] The present application relates to the field of machine-made sand crushing and distribution equipment, and in particular to a particle gradation machine for machine-made sand and its crushing device. Background Art

[0002] Machine-made sand is fine sand screened by a vibrating screen after crushing stones according to customer requirements and raw material properties. The equipment used to produce machine-made sand is a machine-made sand gradation machine.

[0003] In the current crushing device of the machine-made sand gradation machine, the stirring shaft and the machine body are connected by bearings, and the stirring shaft is located inside the machine body; after the stirring blades are damaged, since the stirring shaft and the stirring blades are fixed to the crushing device by bearings, it is not convenient to repair or replace them, and the operation is troublesome. Summary of the Utility Model

[0004] The purpose of the present application is to provide a particle gradation machine for machine-made sand and its crushing device to solve the problem of troublesome replacement and repair of the stirring blades inside the equipment.

[0005] In a first aspect, a crushing device for a particle gradation machine for machine-made sand provided by the present application adopts the following technical solutions:

[0006] A crushing device for a particle gradation machine for machine-made sand includes a crushing box body and a stirring cavity located inside the crushing box body. An installation opening communicating with the stirring cavity is formed on the side wall of the crushing box body; the crushing box body is detachably connected with an installation plate for blocking the installation opening; the installation plate is rotatably connected with a stirring assembly; a driving member is arranged at one end of the stirring assembly located outside the machine body.

[0007] By adopting the above technical solutions, when it is necessary to repair or replace the stirring blades, the installation plate is removed, and the stirring shaft and the stirring blades can be taken out of the crushing box body, so as to achieve rapid replacement or repair. At the same time, it is convenient to clean the inside of the crushing box body.

[0008] Preferably, a surrounding protrusion is arranged on the inner side wall of the installation opening and on the side far from the driving member, and the peripheral wall of the installation plate is respectively attached to the inner side wall of the installation opening and the inner side wall of the surrounding protrusion.

[0009] By adopting the above technical solutions, when installing the installation plate, since the inner side wall of the installation plate is stepped and abuts against the surrounding protrusion, the purpose of rapid positioning is achieved; in addition, since the peripheral wall of the installation plate is stepped, the sealing performance is better, and the sealing effect of the stirring cavity can be effectively improved.

[0010] Preferably, a fixing ring groove is arranged on the peripheral wall of the surrounding protrusion that is attached to the installation plate, and a rubber ring is arranged on the inner wall of the fixing ring groove.

[0011] By adopting the above technical solution, an elastic rubber ring is arranged between the surrounding protruding side wall and the peripheral wall of the mounting plate, which can eliminate the gap between the two and make the mounting plate fit more closely.

[0012] Preferably, a deformation cavity is provided inside the rubber ring.

[0013] By adopting the above technical solution, the elastic effect of the rubber ring is improved, the rubber ring is made softer, and the peripheral wall of the mounting plate and the inner wall of the mounting opening are more tightly joined.

[0014] Preferably, a plurality of fixing members are rotatably provided on the outer side wall of the crushing box, and each of the fixing members is provided with an extension rod which can abut against the mounting plate after rotation to fix the mounting plate.

[0015] By adopting the above technical solution, the mounting plate is fixed by the fixing piece. When the equipment is running, the fixing piece on the outer wall of the crushing box is rotated so that the mounting plate is in a closed state, and a closed space is formed inside the crushing box.

[0016] Preferably, a mounting groove is provided on one side of the outer wall of the extension rod which is in contact with the mounting plate; a magnetic member which is magnetically attracted to the mounting plate is provided in the mounting groove.

[0017] By adopting the above technical solution, the extension rod of the fixing piece will be firmly adsorbed on the surface of the mounting plate due to the magnetic force, and the fixing piece will not fall loose due to uneven force, thereby increasing the safety of the operation process.

[0018] Preferably, the extension rod is threadedly connected with a fixing bolt, and the fixing bolt is threadedly connected to the magnetic member.

[0019] By adopting the above technical solution, the magnetic part is fixed to the extension rod of the fixing part by using the fixing bolt, so as to prevent the magnetic part from falling off during use. At the same time, when the magnetic force of the magnetic part is insufficient, it is convenient to replace the magnetic part.

[0020] In the second aspect, the present application provides a particle grading machine for machine-made sand, which adopts the following technical solution:

[0021] A machine for grading particles of machine-made sand comprises a crushing device for the machine for grading particles of machine-made sand.

[0022] By adopting the above technical solution, when the stirring blade needs to be repaired or replaced, the mounting plate can be disassembled, and the stirring shaft and the stirring blade can be taken out from the crushing box, so as to achieve quick replacement or repair. At the same time, it is convenient to clean the inside of the crushing box.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By adopting the above technical solution, when it is necessary to repair or replace the stirring blade, the mounting plate is disassembled, and the stirring shaft and the stirring blade can be taken out from the crushing cavity, so as to achieve rapid replacement or repair;

[0025] 2. The inner side wall of the mounting plate is stepped and abuts against the surrounding protrusion, so as to achieve the purpose of rapid positioning; and the sealing performance is better, which can effectively improve the sealing effect of the stirring cavity;

[0026] 3. A rubber ring is arranged between the surrounding protrusion and the mounting plate. The gap between the two will be eliminated, so that the mounting plate fits more tightly. Description of the Drawings

[0027] Figure 1 It is a schematic diagram of the overall structure of a particle gradation machine for manufactured sand and its crushing device in Embodiment 2.

[0028] Figure 2 It is a cross-sectional view of the internal structure of the crushing cavity in Embodiment 1.

[0029] Figure 3 It is Figure 2 The enlarged view of part A in

[0030] Figure 4 It is a schematic diagram of the overall structure of the fixing part.

[0031] In the figure, 1. Crushing cavity; 2. Stirring cavity; 3. Installation port; 31. Surrounding protrusion; 4. Mounting plate; 5. Stirring assembly; 51. Stirring blade; 52. Stirring shaft; 6. Driving part; 7. Fixed ring groove; 8. Rubber ring; 81. Deformation cavity; 9. Fixing part; 91. Extension rod; 911. Installation groove; 912. Magnetic part; 913. Fixed bolt; 10. Gradation device; 101. Sorting device; 102. Dragon conveying pipeline. Detailed Embodiment

[0032] The following will be combined with the attached Figure 1 - Attached Figure 4 , and the present application will be further described in detail. Embodiment 1

[0033] A crushing device for a particle gradation machine of manufactured sand, referring to Figure 1 and Figure 2 , includes a crushing cavity 1, a stirring cavity 2 is arranged inside the crushing cavity 1, and an installation port 3 communicating with the stirring cavity 2 is arranged on the side wall of the crushing cavity 1. The crushing cavity 1 is detachably connected with a mounting plate 4 for blocking the installation port 3. The detachable method includes bolt connection, magnetic attraction connection, etc. In this application, the mounting plate 4 is connected to the crushing cavity 1 through a detachable fixing part 9.

[0034] Referring to Figure 2A stirring assembly 5 is provided in the stirring cavity 2, which is composed of a stirring blade 51 and a stirring shaft 52. The stirring shaft 52 is rotatably connected to the mounting plate 4 through a bearing. The end of the stirring shaft 52 located in the stirring cavity 2 is connected to the stirring blade 51. The diameter of the mounting port 3 is larger than the diameter of the stirring blade 51. The end of the stirring shaft 52 located outside the crushing box 1 is connected to a driving member 6. The driving member 6 drives the stirring shaft 52 to rotate, thereby stirring the stone in the cavity of the crushing box 1.

[0035] Reference Figure 2 and 3 , including a mounting opening 3, a surrounding protrusion 31 is provided on the inner side wall of the mounting opening 3 and on the side away from the driving member 6, one side wall of the surrounding protrusion 31 is parallel to the inner side wall of the mounting opening 3, and the other side wall is parallel to the outer side wall of the crushing box 1. A fixing ring groove 7 is provided on the side wall where the surrounding protrusion 31 fits with the mounting plate 4, and the fixing ring groove 7 is located in the middle of the side wall of the annular protrusion. A rubber ring 8 is fixed in the fixing ring groove 7, and the rubber ring 8 fits tightly with the fixing ring groove 7. A deformation cavity 81 is provided inside the rubber ring 8, and the deformation cavity 81 is located in the center of the rubber ring 8 and is coaxial with the rubber ring 8. A plurality of fixing members 9 are provided on the outer side wall of the crushing box 1 near the mounting opening 3 and rotated around the mounting opening 3, and the intervals between two adjacent fixing members 9 are the same. The fixing member 9 is provided with an extension rod 91, and the extension rod 91 can be made to abut against the outer side wall of the mounting plate 4 near the mounting opening 3 by rotating the fixing member 9, thereby limiting the movement of the mounting plate 4.

[0036] Reference Figure 4 The outer wall of the extension rod 91 is provided with a mounting groove 911 on the side that is in contact with the mounting plate 4. The mounting groove 911 is provided at one end of the extension rod 91 in the extension direction, and the mounting groove 911 does not penetrate the extension rod 91. A magnetic part 912 is provided in the mounting groove 911, and the magnetic part is a magnet; a thread is provided at the position of the extension rod 91 passing through the mounting groove 911, and a fixing bolt 913 matched therewith fixes the magnetic part 912 in the mounting groove 911 by a threaded connection. By rotating the extension rod 91 until it contacts the outer wall of the mounting plate 4, the magnetic part 912 is adsorbed on the outer wall of the mounting plate 4, so that the fixing part 9 and the extension rod 91 will not slip off easily, which will affect production.

[0037] The implementation principle of the embodiment of the present application is: the diameter of the installation opening 3 is larger than the diameter of the stirring blade 51. When the stirring blade 51 inside the crushing box 1 needs to be repaired or replaced, the extension rod 91 of the fixing part 9 is rotated until the fixing part 9 is separated from the mounting plate 4, and the mounting plate 4 is removed. The stirring blade 51 can be taken out of the crushing box 1 through the installation opening 3 and replaced. Example 2

[0038] A particle grading machine for machine-made sand, Figure 1, including a grading device 10, a sorting device 101, and a dragon conveyor pipe 102, and also including a crushing device for a particle grading machine of manufactured sand in Embodiment 1. The grading device 10, the sorting device 101, and the dragon conveyor device 102 are prior arts. The grading device 10 is located directly below the crushing device. The side wall of the grading device is provided with the sorting device 101. One end of the sorting device 101 is connected to the dragon conveyor device 102, and the other end of the dragon conveyor device 102 is connected to the crushing device.

[0039] The implementation principle of the embodiment of this application is as follows: In production activities, the stone materials are initially crushed by the crushing device. The fine sand is discharged from the bottom of the grading device 10. The remaining stone materials enter the sorting device 101. The stone materials with smaller particle sizes are returned to the grading device 10, and the larger stone materials are transported to the crushing device through the dragon conveyor pipe 102 for re-crushing.

[0040] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. The same components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A crushing device for the particle size grading machine of manufactured sand, comprising a crushing box body (1) and a stirring cavity (2) located inside the crushing box body (1), and is characterized in that: The side wall of the crushing box (1) is provided with a mounting opening (3) which is in communication with the stirring cavity (2); the crushing box (1) is detachably connected to a mounting plate (4) for blocking the mounting opening (3); the mounting plate (4) is rotatably connected to a stirring assembly (5); and a driving member (6) is provided at one end of the stirring assembly (5) located outside the crushing box.

2. The crushing device for the particle gradation machine of manufactured sand according to claim 1, characterized in that: A surrounding protrusion (31) is provided on the inner side wall of the installation opening (3) and on the side away from the driving member (6), and the peripheral wall of the installation plate (4) is respectively in contact with the inner side wall of the installation opening (3) and the inner side wall of the surrounding protrusion.

3. The crushing device for the particle gradation machine of manufactured sand according to claim 2, characterized in that: The inner side wall of the surrounding protrusion (31) that is in contact with the mounting plate (4) is provided with a fixing ring groove (7), and the inner wall of the fixing ring groove (7) is provided with a rubber ring (8).

4. A crushing device for the particle gradation machine of manufactured sand, according to claim 3, wherein: A deformation cavity (81) is provided inside the rubber ring (8).

5. The crushing device for the particle gradation machine of manufactured sand according to claim 1, characterized in that: The outer side wall of the crushing box (1) is rotatably provided with a plurality of fixing members (9), and each of the fixing members (9) is provided with an extension rod (91) which can abut against the mounting plate (4) after rotation to fix the mounting plate (4).

6. The crushing device for the particle gradation machine of manufactured sand according to claim 5, characterized in that: A mounting groove (911) is provided on the side of the outer wall of the extension rod (91) that is in contact with the mounting plate (4); a magnetic member (912) that is magnetically attracted to the mounting plate (4) is provided in the mounting groove (911).

7. A crushing device for the particle gradation machine of manufactured sand, according to claim 6, characterized in that: The extension rod (91) is threadedly connected to a fixing bolt (913), and the fixing bolt (913) is threadedly connected to the magnetic member (912).

8. A particle gradation machine for manufactured sand, characterized in that: A crushing device for a particle grading machine of machine-made sand comprising the method described in any one of claims 1 to 7.

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