CN110871125B

CN110871125B - Grit manufacturing installation

Info

Publication number: CN110871125B
Application number: CN201911172433.4A
Authority: CN
Inventors: 王琼; 马玉秋; 陈刚; 董如国
Original assignee: Harbin University
Current assignee: Harbin University
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2021-02-02
Anticipated expiration: 2039-11-26
Also published as: CN110871125A

Abstract

The invention relates to a manufacturing device, in particular to a sandstone manufacturing device, which comprises a sliding bracket, a device bracket, a power motor, a rotating bracket, a crushing mechanism, a rotating motor, a crushing barrel and a pushing mechanism, can rotate through a plurality of rubbing crusher of motor power drive, a plurality of rubbing crusher construct the building stones in to the crushing barrel and smash, it is regional to be provided with a plurality of promotions on the rubbing crusher, every promotes regional pushing speed different, rubbing crusher constructs and is provided with a plurality of crushing regions, every crushing regional moment of torsion is different, a plurality of promotion regions correspond with a plurality of crushing regions respectively each other, building stones are earlier through the big crushing region of moment of torsion and promote slow promotion region, guarantee that bold building stones can be smashed thoroughly, guarantee crushing effect, crushing regional moment of torsion reduces in proper order, promote regional pushing speed and accelerate in proper order, guarantee the process velocity of building stones.

Description

Grit manufacturing installation

Technical Field

The invention relates to a manufacturing device, in particular to a sand manufacturing device.

Background

For example, a grinding mill for sand processing with publication number CN108636576A comprises a main body, wherein the outer surfaces of two sides of the lower end of the main body are fixedly provided with a main base, the outer surface of one side of the front end of the main base is fixedly provided with a slag discharging port, the outer surface of the front end of the main body is fixedly provided with a working cylinder and a maintenance cylinder, the working cylinder is positioned at one side of the maintenance cylinder, the outer surface of one side of the main body is fixedly provided with an observation door, an air inlet and a main motor, the observation door is positioned at one side of the air inlet, and the main motor is positioned at the other side of the air; the disadvantage of this invention is that different processing conditions cannot be applied according to different processing sequences.

Disclosure of Invention

The invention aims to provide a sand manufacturing device which can apply different processing torques according to different processing sequences.

The purpose of the invention is realized by the following technical scheme:

a sandstone manufacturing device comprises a sliding support, a device support, a power motor, a rotating support, crushing mechanisms, a rotating motor, a crushing barrel and a pushing mechanism, wherein the sliding support is connected with the device support, the power motor is fixedly connected with the device support, the rotating support is fixedly connected with the device support, the device support is rotatably connected with a plurality of crushing mechanisms, the plurality of crushing mechanisms are all in meshing transmission with the power motor, the plurality of crushing mechanisms are all in meshing transmission with the rotating support, the rotating motor is fixedly connected with the device support, the crushing barrel is rotatably connected with the device support, the crushing barrel is in meshing transmission with the rotating motor, the rotating support and the crushing mechanisms are all arranged in the crushing barrel, the pushing mechanism is fixedly connected with the pushing mechanism in the crushing barrel, the pushing mechanism is provided with a plurality of pushing areas, the pushing speed of each pushing area is different, and the crushing mechanism is provided with a plurality, the torque of each crushing zone is different, and the plurality of pushing zones respectively correspond to the plurality of crushing zones.

As further optimization of the technical scheme, the sand and stone manufacturing device comprises two sliding rails, two connecting plates I, a reciprocating screw rod and a reciprocating motor, wherein the connecting plates I are fixedly connected between the front ends and the rear ends of the two sliding rails, the reciprocating screw rod is rotatably connected between the two connecting plates I, the reciprocating motor is fixedly connected to the connecting plate I on one side, and the reciprocating motor is in transmission connection with the reciprocating screw rod.

According to the technical scheme, the sand and stone manufacturing device comprises a support plate I, a connecting plate II, a support plate II, material inlet cylinders, two mounting rings I, two blocking arc plates and two arc holes, wherein the connecting plate II is fixedly connected between the upper ends of the two support plates I, the lower end of the connecting plate II is fixedly connected with the mounting rings I, the blocking arc plate is fixedly connected to the front side of the lower end of the connecting plate II, the arc holes are formed in the lower end of the blocking arc plate, the material inlet cylinders are fixedly connected to the support plate II on the rear side, the left side and the right side of the two support plates I are respectively connected to two sliding rails in a sliding mode, the two support plates I are connected to a reciprocating screw rod through threads, the rotating motor is fixedly connected to the lower end of the connecting plate II, and the power motor is fixedly connected to.

According to the technical scheme, the rotary support comprises three support columns, three support rings and three installation circular plates, two ends of each support column are fixedly connected to the two support plates I respectively, the three support rings are fixedly connected to the three support columns, and the two installation circular plates are fixedly connected to the two support rings.

As a further optimization of the technical scheme, the invention relates to a sandstone manufacturing device, which comprises three crushing mechanisms, namely a crushing shaft I, a crushing wheel I, a crushing shaft II, transmission gear rings, a crushing wheel II and planet wheels, wherein each crushing mechanism is provided with one crushing shaft I, one crushing wheel I, two crushing shafts II, two transmission gear rings, two crushing wheels II and two planet wheels, the front ends of the three crushing shafts I are respectively and rotatably connected to a support plate I, the three crushing shafts I are respectively and rotatably engaged with a power motor for transmission, the three crushing shafts I are respectively and fixedly connected with the crushing wheels I, the rear sides of the three crushing shafts I are respectively and rotatably connected to three mounting circular plates positioned on the front sides, the six planet wheels are respectively and rotatably connected to the six mounting circular plates, the three planet wheels positioned on the front sides are respectively and rotatably engaged with the three crushing shafts I for transmission, the three planet wheels positioned on the rear sides are respectively and rotatably engaged with the three crushing shafts II positioned on the front sides, the equal fixedly connected with transmission ring gear in front end of six crushing roller II, the three crushing roller II that is located the rear side all rotates to be connected in the backup pad I that is located the rear side, and the three crushing roller II that is located the front side all rotates to be connected in the three installation plectane that is located the rear side, and six transmission ring gears mesh the transmission with six planet wheels respectively, and equal fixedly connected with crushing wheel II is gone up to six crushing roller II.

As a further optimization of the technical scheme, the gravel manufacturing device comprises a crushing barrel, a rotating gear ring, side baffle rings and a discharging circular arc plate, wherein the rotating gear ring is fixedly connected to the middle of the crushing barrel, the rotating gear ring is meshed with a rotating motor for transmission, the side baffle rings are fixedly connected to the front side and the rear side of the crushing barrel, the discharging circular arc plate is arranged on the front side of the lower end of the crushing barrel, the crushing barrel is rotatably connected to a mounting ring I, and the discharging circular arc plate corresponds to the circular arc hole.

As a further optimization of the technical scheme, the sandstone manufacturing device comprises two mounting rings II, two pushing screws and two partition plates, wherein the pushing screws are fixedly connected to the inner sides of the two mounting rings II, the partition plates are fixedly connected to the inner sides of the two pushing screws, the pushing screws are fixedly connected between the two partition plates, and the screw pitches of the three pushing screws are different.

As a further optimization of the technical scheme, the two pushing screws and the two support rings are respectively positioned at the same vertical position.

The sand manufacturing device has the beneficial effects that:

the invention relates to a gravel manufacturing device, which can drive a plurality of crushing mechanisms to rotate through a power motor, wherein the plurality of crushing mechanisms crush stones in a crushing barrel, a plurality of pushing areas are arranged on the pushing mechanisms, the pushing speed of each pushing area is different, the crushing mechanisms are provided with a plurality of crushing areas, the torque of each crushing area is different, the plurality of pushing areas correspond to the plurality of crushing areas respectively, the stones firstly pass through the crushing areas with large torque and the pushing areas with slow pushing, the massive stones can be completely crushed, the crushing effect is ensured, the torque of the crushing areas is reduced in sequence, the pushing speed of the pushing areas is accelerated in sequence, and the processing speed of the stones is ensured.

Drawings

The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and "upright", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, directly or indirectly connected through an intermediate medium, and may be a communication between two members. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, in the description of the present invention, the meaning of "a plurality", and "a plurality" is two or more unless otherwise specified.

FIG. 1 is a schematic view showing the overall construction of the sand producing apparatus of the present invention;

FIG. 2 is a schematic cross-sectional view of the sand manufacturing apparatus of the present invention;

FIG. 3 is a schematic view of a part of the sand manufacturing apparatus of the present invention;

FIG. 4 is a schematic view of the sliding support structure of the present invention;

FIG. 5 is a schematic view of the device support structure of the present invention;

FIG. 6 is a schematic view of a rotating support structure of the present invention;

FIG. 7 is a schematic view of the shredder mechanism of the present invention;

FIG. 8 is a schematic cross-sectional view of the shredder mechanism of the present invention;

FIG. 9 is a first schematic view of the construction of the grinding cylinder of the present invention;

FIG. 10 is a schematic view of the second embodiment of the milling drum of the present invention;

fig. 11 is a schematic view of the pushing mechanism of the present invention.

In the figure: a sliding support 1; a sliding rail 1-1; a connecting plate I1-2; 1-3 parts of a reciprocating screw rod; 1-4 of a reciprocating motor; a device holder 2; a support plate I2-1; a connecting plate II 2-2; 2-3 of a support plate; 2-4, feeding into a charging barrel; mounting a ring I2-5; 2-6 parts of a blocking arc plate; 2-7 arc holes; a power motor 3; a rotating bracket 4; 4-1 of a support column; a support ring 4-2; installing a circular plate 4-3; a crushing mechanism 5; 5-1 of a crushing shaft; 5-2 parts of a crushing wheel; 5-3 parts of a crushing shaft II; 5-4 parts of a transmission gear ring; 5-5 parts of a crushing wheel II; planet wheels 5-6; a rotating motor 6; a milling drum 7; crushing the barrel 7-1; rotating the gear ring 7-2; side baffle rings 7-3; 7-4 of discharge arc plate; a pushing mechanism 8; mounting a ring II 8-1; pushing the screw 8-2; and (8) dividing the plate into 8-3 parts.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows:

the present embodiment will be described with reference to fig. 1 to 11, in which a sandstone manufacturing apparatus comprises a sliding support 1, a device support 2, a power motor 3, a rotating support 4, a crushing mechanism 5, a rotating motor 6, a crushing barrel 7 and a pushing mechanism 8, the sliding support 1 is connected with the device support 2, the device support 2 is fixedly connected with the power motor 3, the device support 2 is fixedly connected with the rotating support 4, the device support 2 is rotatably connected with a plurality of crushing mechanisms 5, the plurality of crushing mechanisms 5 are engaged with the power motor 3 for transmission, the plurality of crushing mechanisms 5 are rotatably connected with the rotating support 4, the rotating motor 6 is fixedly connected with the device support 2, the crushing barrel 7 is rotatably connected with the device support 2, the crushing barrel 7 is engaged with the rotating motor 6 for transmission, the rotating support 4 and the crushing mechanism 5 are both disposed in the crushing barrel 7, the pushing mechanism 8 is fixedly connected in the crushing barrel 7, the pushing mechanism 8 is provided with a plurality of pushing areas, the pushing speed of each pushing area is different, the crushing mechanism 5 is provided with a plurality of crushing areas, the torque of each crushing area is different, and the plurality of pushing areas correspond to the plurality of crushing areas respectively; can rotate through a plurality of rubbing crusher constructs 5 of power motor 3 drive, a plurality of rubbing crusher constructs 5 smashes the building stones in the crushing barrel 7, it is regional to be provided with a plurality of promotions on the pushing mechanism 8, every promotion regional pushing speed is different, rubbing crusher constructs 5 and is provided with a plurality of crushing regions, every crushing regional moment of torsion is different, a plurality of promotion regions correspond with a plurality of crushing regions respectively each other, building stones are earlier through the big crushing region of moment of torsion and promote slow promotion region, guarantee that bold building stones can be smashed thoroughly, guarantee crushing effect, crushing regional moment of torsion reduces in proper order, promote regional promotion speed and accelerate in proper order, guarantee the process velocity of building stones.

The second embodiment is as follows:

the embodiment is described below with reference to fig. 1 to 11, and the embodiment further describes the first embodiment, where the sliding support 1 includes two sliding rails 1-1, two connecting plates i 1-2, two reciprocating screw rods 1-3 and two reciprocating motors 1-4, the two sliding rails 1-1 are fixedly connected between the front and rear ends of the two sliding rails 1-1, the connecting plates i 1-2 are rotatably connected between the two connecting plates i 1-2, the reciprocating screw rods 1-3 are fixedly connected to the connecting plate i 1-2 on one side, and the reciprocating motors 1-4 are in transmission connection with the reciprocating screw rods 1-3.

The third concrete implementation mode:

the second embodiment is further described by referring to fig. 1-11, the device bracket 2 includes two support plates i 2-1, two connecting plates ii 2-2, two support plates ii 2-3, a charging barrel 2-4, two mounting rings i 2-5, two arc blocking plates 2-6 and two arc holes 2-7, the upper ends of the two support plates i 2-1 are fixedly connected with the connecting plates ii 2-2, the lower end of the connecting plate ii 2-2 is fixedly connected with the mounting rings i 2-5, the front side of the lower end of the connecting plate ii 2-2 is fixedly connected with the arc blocking plates 2-6, the lower end of the arc blocking plate 2-6 is provided with the arc holes 2-7, the supporting plate ii 2-3 at the rear side is fixedly connected with the charging barrel 2-4, the left side and the right side of the two support plates I2-1 are respectively connected onto the two sliding rails 1-1 in a sliding mode, the two support plates I2-1 are both connected onto the reciprocating screw rods 1-3 through threads, the lower end of the connecting plate II 2-2 is fixedly connected with a rotating motor 6, and the support plate I2-1 located on the front side is fixedly connected with a power motor 3.

The fourth concrete implementation mode:

the following describes the present embodiment with reference to fig. 1 to 11, and the present embodiment further describes an embodiment three, where the rotating bracket 4 includes three support pillars 4-1, three support rings 4-2, and three mounting circular plates 4-3, two ends of the three support pillars 4-1 are respectively and fixedly connected to two support plates i 2-1, two support rings 4-2 are fixedly connected to the three support pillars 4-1, and three mounting circular plates 4-3 are fixedly connected to the two support rings 4-2.

The fifth concrete implementation mode:

the fourth embodiment is further described with reference to fig. 1-11, wherein the crushing mechanism 5 comprises a crushing shaft i 5-1, a crushing wheel i 5-2, a crushing shaft ii 5-3, a transmission gear ring 5-4, a crushing wheel ii 5-5 and planet wheels 5-6, three crushing mechanisms 5 are provided, each crushing mechanism 5 is provided with one crushing shaft i 5-1, one crushing wheel i 5-2, two crushing shafts ii 5-3, two transmission gear rings 5-4, two crushing wheels ii 5-5 and two planet wheels 5-6, the front ends of the three crushing shafts i 5-1 are rotatably connected to a support plate i 2-1, the three crushing shafts i 5-1 are in meshing transmission with a power motor 3, the three crushing shafts i 5-1 are fixedly connected with the crushing wheels i 5-2, the rear sides of three crushing shafts I5-1 are rotatably connected to three mounting circular plates 4-3 positioned on the front side, six planet wheels 5-6 are rotatably connected to the six mounting circular plates 4-3 respectively, the three planet wheels 5-6 positioned on the front side are in meshing transmission with the three crushing shafts I5-1 respectively, the three planet wheels 5-6 positioned on the rear side are in meshing transmission with the three crushing shafts II 5-3 positioned on the front side respectively, the front ends of the six crushing shafts II 5-3 are fixedly connected with transmission gear rings 5-4, the three crushing shafts II 5-3 positioned on the rear side are rotatably connected to a supporting plate I2-1 positioned on the rear side, the three crushing shafts II 5-3 positioned on the front side are rotatably connected to the three mounting circular plates 4-3 positioned on the rear side, and the six transmission gear rings 5-4 are in meshing transmission with the six planet wheels 5-6 respectively, and the six crushing shafts II 5-3 are fixedly connected with crushing wheels II 5-5.

The sixth specific implementation mode:

this embodiment will be described with reference to fig. 1 to 11, and a fifth embodiment will be further described,

the seventh embodiment:

the sixth embodiment is further described with reference to fig. 1 to 11, wherein the crushing cylinder 7 includes a crushing cylinder 7-1, a rotating gear ring 7-2, a side baffle ring 7-3 and a discharging circular arc plate 7-4, the middle of the crushing cylinder 7-1 is fixedly connected with the rotating gear ring 7-2, the rotating gear ring 7-2 is in meshing transmission with a rotating motor 6, the front side and the rear side of the crushing cylinder 7-1 are both fixedly connected with the side baffle rings 7-3, the front side of the lower end of the crushing cylinder 7-1 is provided with the discharging circular arc plate 7-4, the crushing cylinder 7-1 is rotatably connected to a mounting ring i 2-5, and the discharging circular arc plate 7-4 and the circular arc hole 2-7 correspond to each other.

The specific implementation mode is eight:

the embodiment is described below with reference to fig. 1 to 11, and the seventh embodiment is further described in the present embodiment, where the pushing mechanism 8 includes two mounting rings ii 8-1, two pushing screws 8-2 and two dividing plates 8-3, the inner sides of the two mounting rings ii 8-1 are both fixedly connected with the pushing screws 8-2, the inner sides of the two pushing screws 8-2 are both fixedly connected with the dividing plates 8-3, the pushing screws 8-2 are fixedly connected between the two dividing plates 8-3, and the screw pitches of the three pushing screws 8-2 are different.

The specific implementation method nine:

this embodiment is described below with reference to fig. 1 to 11, and this embodiment further describes an embodiment eight in which the two pushing screws 8-2 are respectively in the same vertical position as the two support rings 4-2.

The invention relates to a sand manufacturing device, which has the working principle that:

when in use, stones to be crushed are placed in the feeding barrel 2-4, as shown in figure 2, the stones fall into the crushing barrel 7-1 at the rear side through the feeding barrel 2-4, the rotating motor 6 and the power motor 3 are started, the output shaft of the power motor 3 starts to rotate, the output shaft of the power motor 3 drives the three crushing shafts I5-1 to rotate, the three crushing shafts I5-1 respectively drive the corresponding planet wheels 5-6 to rotate, the planet wheels 5-6 drive the corresponding transmission gear rings 5-4 to rotate, the transmission gear rings 5-4 drive the corresponding crushing shafts II 5-3 to rotate, the rotating speed of the crushing shaft II 5-3 at the front side is less than that of the crushing shaft I5-1, and the torque of the crushing shaft II 5-3 is greater than that of the crushing shaft I5-1, the crushing shaft II 5-3 positioned on the front side drives the corresponding planet wheel 5-6 to rotate, the planet wheel 5-6 drives the corresponding transmission gear ring 5-4 to rotate, the transmission gear ring 5-4 drives the corresponding crushing shaft II 5-3 to rotate, the rotating speed of the crushing shaft II 5-3 positioned on the rear side is less than that of the crushing shaft II 5-3 positioned on the front side, the torque of the crushing shaft II 5-3 positioned on the rear side is greater than that of the crushing shaft II 5-3 positioned on the front side, the rotating torque of the crushing shaft II 5-3 positioned on the rear side is the largest, stones to be crushed are larger, so that larger torque is needed, the inner sides of the two pushing screws 8-2 are fixedly connected with the partition plates 8-3, the pushing screws 8-2 are fixedly connected between the two partition plates 8-3, the three pushing screws 8-2 have different pitches, the pushing screw 8-2 at the rear side has the smallest pitch, the output shaft of the rotating motor 6 drives the rotating gear ring 7-2 to rotate, the rotating gear ring 7-2 drives the crushing barrel 7-1 to rotate, the crushing barrel 7-1 drives the pushing mechanism 8 to rotate, the pushing screw 8-2 at the rear side has the smallest distance when pushing stone to advance when rotating, the pushing screw 8-2 can drive the stone to reciprocate up and down when rotating, the pushing screw 8-2 can push the stone to rotate reversely and can drive the stone to move upwards, the screw direction of the pushing screw 8-2 needs to correspond to the rotating direction of the rotating motor 6, and the transverse component force generated by the pushing screw 8-2 can push the stone to move from the rear side to the front side of the crushing barrel 7-1, the stone can be ensured to fall on the plurality of crushing mechanisms 5 from the position of the relative upper side in a reciprocating manner during crushing, the crushing effect is improved, attention is paid to the fact that the diameter of the inner side of the pushing screw 8-2 is smaller than that of the dividing plate 8-3, and the pushing screw 8-2 is ensured to push the stone to pass through the dividing plate 8-3; the pushing speed of each pushing area is different, the crushing mechanism 5 is provided with a plurality of crushing areas, the torque of each crushing area is different, the plurality of pushing areas correspond to the plurality of crushing areas respectively, stone firstly passes through the crushing area with large torque and the pushing area with slow pushing, massive stone can be crushed thoroughly, the crushing effect is ensured, the torque of the crushing areas is reduced sequentially, the pushing speed of the pushing areas is accelerated sequentially, and the processing speed of the stone is ensured; stone is sequentially crushed and finally pushed into a side baffle ring 7-3 positioned at the front side, a blocking arc plate 2-6 can block a discharging arc plate 7-4 when the discharging arc plate 7-4 rotates, the crushed stone can flow out only when the arc hole 2-7 corresponds to the discharging arc plate 7-4 through the discharging arc plate 7-4, and a plurality of screening holes are formed in the discharging arc plate 7-4; the reciprocating motor 1-4 is started, the output shaft of the reciprocating motor 1-4 starts to rotate, the output shaft of the reciprocating motor 1-4 drives the reciprocating screw rod 1-3 to rotate, the reciprocating screw rod 1-3 pushes the two support plates I2-1 to reciprocate through threads, the device support 2 drives the crushing barrel 7 to reciprocate back and forth, and the crushing effect of stones in the crushing barrel 7 is improved.

It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions and substitutions which are within the spirit and scope of the present invention and which may be made by those skilled in the art are also within the scope of the present invention.

Claims

1. The utility model provides a grit manufacturing installation, includes sliding support (1), device support (2), motor power (3), runing rest (4), rubbing crusher constructs (5), rotates motor (6), crushing barrel (7) and pushing mechanism (8), its characterized in that: the device comprises a sliding support (1), a device support (2), a power motor (3) fixedly connected to the device support (2), a rotating support (4) fixedly connected to the device support (2), a plurality of crushing mechanisms (5) rotatably connected to the device support (2), the plurality of crushing mechanisms (5) are engaged with the power motor (3) for transmission, the plurality of crushing mechanisms (5) are rotatably connected to the rotating support (4), a rotating motor (6) is fixedly connected to the device support (2), a crushing barrel (7) is rotatably connected to the device support (2), the crushing barrel (7) is engaged with the rotating motor (6) for transmission, the rotating support (4) and the crushing mechanisms (5) are arranged in the crushing barrel (7), a pushing mechanism (8) is fixedly connected to the inside of the crushing barrel (7), and a plurality of pushing areas are arranged on the pushing mechanism (8), the pushing speed of each pushing area is different, the crushing mechanism (5) is provided with a plurality of crushing areas, the torque of each crushing area is different, and the plurality of pushing areas correspond to the plurality of crushing areas respectively;

the sliding support (1) comprises two sliding rails (1-1), two connecting plates I (1-2), two reciprocating screw rods (1-3) and two reciprocating motors (1-4), the connecting plates I (1-2) are fixedly connected between the front end and the rear end of each of the two sliding rails (1-1), the reciprocating screw rods (1-3) are rotatably connected between the two connecting plates I (1-2), the reciprocating motors (1-4) are fixedly connected to the connecting plates I (1-2) on one side, and the reciprocating motors (1-4) are in transmission connection with the reciprocating screw rods (1-3);

the device support (2) comprises two support plates I (2-1), two connecting plates II (2-2), two support plates II (2-3), a charging barrel (2-4), two mounting rings I (2-5), two arc blocking plates (2-6) and two arc holes (2-7), the connecting plates II (2-2) are fixedly connected between the upper ends of the two support plates I (2-1), the lower end of each connecting plate II (2-2) is fixedly connected with the corresponding mounting ring I (2-5), the arc blocking plates (2-6) are fixedly connected to the front sides of the lower ends of the connecting plates II (2-2), the arc holes (2-7) are formed in the lower ends of the arc blocking plates (2-6), and the charging barrel (2-4) is fixedly connected to the support plate II (2-3) located on the rear side, the left side and the right side of the two support plates I (2-1) are respectively connected to the two sliding rails (1-1) in a sliding mode, the two support plates I (2-1) are both connected to the reciprocating screw rods (1-3) through threads, the lower end of the connecting plate II (2-2) is fixedly connected with a rotating motor (6), and the support plate I (2-1) located on the front side is fixedly connected with a power motor (3);

the rotary support (4) comprises three support columns (4-1), support rings (4-2) and mounting circular plates (4-3), two ends of each support column (4-1) are fixedly connected to the two support plates I (2-1), two support rings (4-2) are fixedly connected to the three support columns (4-1), and the three mounting circular plates (4-3) are fixedly connected to the two support rings (4-2);

the crushing mechanism (5) comprises a crushing shaft I (5-1), crushing wheels I (5-2), crushing shafts II (5-3), transmission gear rings (5-4), crushing wheels II (5-5) and planet wheels (5-6), three crushing mechanisms (5) are arranged, each crushing mechanism (5) is provided with one crushing shaft I (5-1), one crushing wheel I (5-2), two crushing shafts II (5-3), two transmission gear rings (5-4), two crushing wheels II (5-5) and two planet wheels (5-6), the front ends of the three crushing shafts I (5-1) are rotatably connected to a support plate I (2-1), the three crushing shafts I (5-1) are in meshing transmission with a power motor (3), the three crushing shafts I (5-1) are fixedly connected with the crushing wheels I (5-2), the rear sides of three crushing shafts I (5-1) are rotatably connected to three mounting circular plates (4-3) positioned at the front side, six planet wheels (5-6) are respectively rotatably connected to the six mounting circular plates (4-3), the three planet wheels (5-6) positioned at the front side are respectively in meshing transmission with the three crushing shafts I (5-1), the three planet wheels (5-6) positioned at the rear side are respectively in meshing transmission with the three crushing shafts II (5-3) positioned at the front side, the front ends of the six crushing shafts II (5-3) are respectively and fixedly connected with transmission gear rings (5-4), the three crushing shafts II (5-3) positioned at the rear side are respectively and rotatably connected to a supporting plate I (2-1) positioned at the rear side, the three crushing shafts II (5-3) positioned at the front side are respectively and rotatably connected to the three mounting circular plates (4-3) positioned at the rear side, six transmission gear rings (5-4) are respectively meshed with six planet wheels (5-6) for transmission, and the six crushing shafts II (5-3) are fixedly connected with crushing wheels II (5-5);

the crushing barrel (7) comprises a crushing barrel body (7-1), a rotating gear ring (7-2), a side baffle ring (7-3) and a discharging arc plate (7-4), the middle part of the crushing barrel body (7-1) is fixedly connected with the rotating gear ring (7-2), the rotating gear ring (7-2) is in meshing transmission with a rotating motor (6), the front side and the rear side of the crushing barrel body (7-1) are both fixedly connected with the side baffle ring (7-3), the discharging arc plate (7-4) is arranged on the front side of the lower end of the crushing barrel body (7-1), the crushing barrel body (7-1) is rotatably connected to a mounting ring I (2-5), and the discharging arc plate (7-4) and the arc hole (2-7) correspond to each other;

the pushing mechanism (8) comprises two mounting rings II (8-1), two pushing screws (8-2) and two dividing plates (8-3), the inner sides of the two mounting rings II (8-1) are fixedly connected with the pushing screws (8-2), the inner sides of the two pushing screws (8-2) are fixedly connected with the dividing plates (8-3), the pushing screws (8-2) are fixedly connected between the two dividing plates (8-3), and the screw pitches of the three pushing screws (8-2) are different.

2. A sand manufacturing apparatus according to claim 1, wherein: the two pushing screws (8-2) are respectively positioned at the same vertical position with the two supporting rings (4-2).