Crushing and screening integrated machine

Abstract

The application discloses a crushing and screening integrated machine and relates to the technical field of construction waste crushing, which comprises a supporting body, a main shaft driving assembly, a rotor driving assembly, an outer roller screen body, a primary roller screen, a secondary roller screen and a cutter assembly. The main shaft driving assembly is fixed on the supporting body, and the output end of the main shaft driving assembly is fixedly connected with a main shaft body. The rotor driving assembly is fixed on the supporting body, and the output end of the rotor driving assembly is fixedly connected with a rotor body. The rotor body is provided with a rotor through hole, one end of the main shaft body away from the main shaft driving assembly can be inserted into the rotor through hole, and the rotation direction of the main shaft body is opposite to that of the rotor body. The outer roller screen body is fixed on the outer side of the main shaft body. The primary roller screen is fixed on one side of the outer roller screen body. The secondary roller screen is fixed on the inner side of the outer roller screen body. The cutter assembly is fixed on the outer side of the rotor body. The crushing effect of the material can be effectively improved by the opposite rotation directions of the rotor body and the main shaft body.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building slag crushing, in particular to a crushing and screening integrated machine. BACKGROUND

[0002] In recent years, large-scale engineering construction has promoted China's economic development and effectively improved people's working and living conditions. At the same time, a large amount of building slag has also been produced.

[0003] Building slag is a kind of construction waste. In order to process building slag, it is necessary to crush and screen the building slag first. The existing building slag crushing system generally consists of a crusher, a belt conveyor and a screening machine to form a crushing and screening system.

[0004] However, such a crushing and screening system is large in size, high in manufacturing cost, and the crushing effect is not ideal and is prone to plugging.

[0005] Therefore, there is an urgent need in the market for a new crushing and screening integrated machine to solve the above problems. SUMMARY

[0006] The purpose of the present application is to provide a crushing and screening integrated machine to solve the technical problems existing in the prior art. The rotation directions of the rotor body and the main shaft body are opposite, which can effectively improve the material crushing effect and avoid plugging.

[0007] To achieve the above purpose, the present application provides the following scheme:

[0008] The present application discloses a crushing and screening integrated machine, comprising:

[0009] a support body;

[0010] a main shaft driving assembly fixed to the support body, the output end of the main shaft driving assembly being fixedly connected with a main shaft body, the main shaft driving assembly being capable of driving the main shaft body to rotate;

[0011] a rotor driving assembly fixed to the support body, the main shaft driving assembly and the rotor driving assembly being respectively located on the two sides of the support body, the output end of the rotor driving assembly being fixedly connected with a rotor body, the rotor body being provided with a rotor through hole, the end of the main shaft body away from the main shaft driving assembly being capable of extending into the rotor through hole, the rotation direction of the main shaft body being opposite to that of the rotor body;

[0012] an outer roller screen body fixed to the outer side of the main shaft body;

[0013] A primary roller screen is fixed to the inner side of the outer roller screen body;

[0014] A secondary roller screen is fixed to the inner side of the outer roller screen body, and is located on the side of the primary roller screen close to the main shaft driving assembly;

[0015] A cutter assembly is fixed to the outer side of the rotor body.

[0016] Preferably, a cover plate is fixed on the side of the primary roller screen close to the rotor driving assembly, and an opening is arranged on the cover plate. An inlet door plate is arranged at the opening, and a gap exists between the inlet door plate and the cover plate. One side of the inlet door plate is fixed to the support body, and an inlet is arranged on the inlet door plate. An inlet plate is arranged at the inlet, and the rotor body penetrates through the inlet door plate.

[0017] Preferably, the rotor driving assembly comprises a rotor driving motor, and the rotor driving motor is fixed to the support body. A rotor motor pulley is fixed to the output shaft of the rotor driving motor, and a rotor pulley is drivingly connected to the rotor motor pulley through a rotor driving belt. The rotor pulley is fixed to one end of the rotor body away from the main shaft body.

[0018] Preferably, the main shaft driving assembly comprises a main shaft driving motor and a reducer body, and the main shaft driving motor and the reducer body are both fixed to the support body. A main shaft motor pulley is fixed to the output shaft of the main shaft driving motor, and a reducer input end pulley is fixed to the input shaft of the reducer body. The main shaft motor pulley and the reducer input end pulley are drivingly connected through a main shaft driving belt. The first output end of the reducer body is fixedly connected to one end of the main shaft body away from the rotor body.

[0019] Preferably, a reducer output end pulley is fixed to the second output end of the reducer body, and a beating pulley is drivingly connected to the reducer output end pulley through a beating belt. The beating pulley is fixed to one end of a beating rotating shaft, and the beating rotating shaft is rotatably connected to the beating support. A plurality of beating pieces are fixed to the beating rotating shaft, and the beating pieces are used for beating the outer side wall of the outer roller screen body.

[0020] Preferably, two guide plates are fixed to the lower end of the support body, and the two guide plates are respectively located on the two sides of the outer roller screen body. The two guide plates are arranged in an inclined manner, and the distance between the two guide plates gradually decreases from top to bottom.

[0021] Preferably, the outer roller screen body comprises a plurality of outer roller screen flanges fixed to the main shaft body, an outer roller screen fixing frame is fixed to the outer side of each outer roller screen flange, and an outer screen plate is fixed to the outer side of the outer roller screen fixing frame.

[0022] Preferably, the primary roller screen comprises a primary fixing plate fixed to one outer roller screen fixing frame, and a primary screen plate is fixed to the side of the primary fixing plate away from the main shaft driving assembly.

[0023] Preferably, the secondary roller screen comprises a secondary fixing plate and a plurality of secondary round steels, the secondary fixing plate is fixed to one outer roller screen fixing frame, the secondary fixing plate is located on the side of the primary fixing plate close to the main shaft driving assembly, a plurality of primary through holes are arranged on the primary fixing plate, a plurality of secondary through holes are arranged on the secondary fixing plate, one secondary round steel sequentially passes through one secondary through hole and one primary through hole, and a limiting pin shaft is connected to the end of the secondary round steel close to the primary through hole, and the limiting pin shaft is used for limiting the secondary round steel.

[0024] Preferably, the cutter assembly comprises a blade support fixed to the rotor body, and a plurality of hammer head blades are uniformly fixed in the circumferential direction of the blade support.

[0025] The present application has the following technical effects relative to the prior art:

[0026] 1. The present application has a simple overall structure, and saves process flow equipment and land area relative to the prior art.

[0027] 2. The primary roller screen is used for pre-screening, and the adjustable secondary roller screen is used for step-by-step crushing and screening, thereby improving the crushing efficiency.

[0028] 3. The present application has more qualified screen holes, is more energy-saving during operation, and saves energy by more than 30% than the previous crushing and screening system.

[0029] 4. The particle size is simple and convenient to adjust, the gap is adjusted by adjusting the secondary round steel, and only one person needs 30 minutes to complete the operation.

[0030] 5. The present application is simple and cheap to replace spare parts, the service life of the hammer head blade is more than 2-3 months, the annual spare parts are less than 50,000, and the hammer head blade is convenient to replace, only 2 persons are needed, and the replacement can be completed within about 1 hour.

[0031] 6. The present application has no requirement for material humidity and is not easy to block.

[0032] 7. The rotor body and the main shaft body in the application move relative to each other, so that the crushing efficiency is higher and energy consumption is lower. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0034] Figure 1 It is a whole schematic view of the direction of the main shaft driving assembly in the crushing and screening integrated machine of the embodiment of the present application.

[0035] Figure 2 It is a structural schematic view of the main shaft driving assembly in the crushing and screening integrated machine of the embodiment of the present application.

[0036] Figure 3 It is a whole schematic view of the direction of the rotor driving assembly in the crushing and screening integrated machine of the embodiment of the present application.

[0037] Figure 4 It is a structural schematic view of the rotor driving assembly in the crushing and screening integrated machine of the embodiment of the present application.

[0038] Figure 5 It is a structural schematic view of the outer roller screen body in the crushing and screening integrated machine of the embodiment of the present application.

[0039] Figure 6 It is an internal structure view of the crushing and screening integrated machine of the embodiment of the present application.

[0040] In the figure: 1 - support body; 2 - main shaft driving motor; 201 - main shaft motor pulley; 3 - reducer body; 301 - reducer input end pulley; 302 - reducer output end pulley; 4 - beating rotating shaft; 401 - beating pulley; 5 - beating piece; 6 - beating support; 7 - outer roller screen body; 71 - outer screen plate; 72 - first-stage screen plate; 73 - channel steel; 74 - connecting angle steel; 75 - flat steel; 76 - connecting rod; 8 - feeding door plate; 9 - feeding plate; 10 - rotor driving motor; 1001 - rotor motor pulley; 11 - rotor pulley; 12 - main shaft body; 13 - outer roller screen flange; 14 - outer roller screen fixing frame; 15 - first-stage roller screen; 16 - second-stage roller screen; 17 - blade support; 18 - hammer head blade; 19 - rotor body; 20 - guide plate; 100 - crushing and screening integrated machine. DETAILED DESCRIPTION

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] The purpose of this invention is to provide an integrated crushing and screening machine to solve the technical problems existing in the prior art. By utilizing the opposite rotation of the rotor body and the main shaft body, the material crushing effect can be effectively improved, and the blockage phenomenon can also be avoided.

[0043] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] like Figures 1-3 As shown, this embodiment provides a crushing and screening integrated machine 100, including:

[0045] Support body 1 is a bracket structure, which mainly serves to support various devices;

[0046] A spindle drive assembly is fixed on the support body 1. The output end of the spindle drive assembly is fixedly connected to the spindle body 12. The spindle drive assembly can drive the spindle body 12 to rotate.

[0047] The rotor drive assembly is fixed on the support body 1. The spindle drive assembly and the rotor drive assembly are located on the left and right sides of the support body 1, respectively. The output end of the rotor drive assembly is fixedly connected to the rotor body 19. The rotor body 19 is provided with a rotor through hole, which penetrates the entire rotor body 19 along its axial direction. The end of the spindle body 12 away from the spindle drive assembly can extend into the rotor through hole. The rotation direction of the spindle body 12 is opposite to the rotation direction of the rotor body 19. A bearing can be provided between the spindle body 12 and the rotor body 19 to reduce the friction between them.

[0048] The outer roller screen body 7 is fixed to the outside of the main shaft body 12. The screen hole diameter of the outer roller screen body 7 must match the particle size of the final material.

[0049] The primary roller screen 15 is fixed to the side of the outer roller screen body 7 near the rotor drive assembly.

[0050] The secondary roller screen 16 is fixed to the inner side of the outer roller screen body 7, the screen hole diameter of the secondary roller screen 16 is 10 mm or the specific screen hole size thereof can also be adjusted by those skilled in the art according to actual needs, the secondary roller screen 16 is located at the side of the primary roller screen 15 close to the main shaft driving assembly, and the secondary roller screen 16 is inclinedly arranged with the primary roller screen 15, and gradually rises from the secondary roller screen 16 to the primary roller screen 15, so that the advantages of the arrangement are convenient for guiding the material, and the material can roll from the primary roller screen 15 to the secondary roller screen 16 under its own weight;

[0051] The cutter assembly is fixed to the outer side of the rotor body 19 and located at the inner side of the primary roller screen 15 and the secondary roller screen 16;

[0052] In addition, those skilled in the art can also set a controller, and the main shaft driving assembly and the rotor driving assembly are simultaneously electrically connected with the controller, so as to realize remote control of the staff, and the specific structure of the controller can adopt an existing PLC controller or other types of controllers.

[0053] In use, first, the main shaft driving assembly and the rotor driving assembly are started, and the material is poured from the primary roller screen 15, because the materials such as mud and sand with small particle size and without crushing exist in the material, so the mud and sand with small particle size fall from the primary roller screen 15 into the outer roller screen body 7. The shale with large particle size moves to the secondary roller screen 16 (the primary roller screen 15 and the secondary roller screen 16 are inclinedly arranged), and the material is crushed under the action of the cutter assembly and the secondary roller screen 16, because the directions of the main shaft body 12 and the rotor body 19 are completely opposite, so the directions of the secondary roller screen 16 and the cutter assembly are also opposite, so that the relative rotating speed is improved, the crushing effect is further improved, and the plugging phenomenon is effectively prevented. The crushed material passes through the screen hole of the secondary roller screen 16 and enters the outer roller screen body 7, and the material can be further crushed under the continuous rotation of the outer roller screen body 7 until the particle size of the crushed material can pass through the aperture of the outer roller screen body 7. The lower side of the support body 1 is provided with a material conveying belt, and the material falling from the outer roller screen body 7 is finally conveyed away by the material conveying belt.

[0054] In the embodiment, as Figure 3As shown, the first roller screen 15 is fixed with a cover plate on the side close to the rotor driving assembly. The cover plate is an annular plate, and the cover plate and the first roller screen 15 are of an integral structure. An opening is arranged on the cover plate, and a feeding door plate 8 is arranged at the opening. A gap exists between the feeding door plate 8 and the cover plate. One side of the feeding door plate 8 is fixed to the support main body 1. Specifically, an L-shaped plate is fixed to the outer side of the lower end of the feeding door plate 8, which can be used to be fixed to the support main body 1 by screws. When the outer roller screen body 7 drives the cover plate to rotate, the feeding door plate 8 will not rotate. An inlet is arranged on the feeding door plate 8, and an inlet plate 9 is arranged at the inlet. The inlet plate 9 is arranged to be inclined and gradually lowered from the direction away from the inlet to the direction close to the inlet. This arrangement facilitates the feeding of materials. The rotor body 19 penetrates through the feeding door plate 8, and a gap exists between the feeding door plate 8 and the rotor body 19 to prevent friction between the feeding door plate 8 and the rotor body 19.

[0055] In this embodiment, the rotor driving assembly includes a rotor driving motor 10. The rotor driving motor 10 is fixed to the support main body 1. An output shaft of the rotor driving motor 10 is fixed with a rotor motor pulley 1001. The rotor motor pulley 1001 is drivingly connected with a rotor pulley 11 through a rotor driving belt. The rotor pulley 11 is fixed to one end of the rotor body 19 away from the main shaft body 12. Specifically, the rotor body 19 penetrates through the center of the rotor pulley 11 and is key-connected therewith. One end of the rotor body 19 close to the rotor pulley 11 is fixed with a bearing seat, and the other end can be supported by the main shaft body 12. In use, the rotor driving motor 10 is started. The output shaft of the rotor driving motor 10 drives the rotor motor pulley 1001 to rotate. The rotor motor pulley 1001 drives the rotor pulley 11 to rotate through the rotor driving belt, so as to finally realize the rotation of the rotor body 19.

[0056] In this embodiment, the main shaft driving assembly includes a main shaft driving motor 2 and a reducer body 3. The main shaft driving motor 2 and the reducer body 3 are both fixed to the support main body 1. A main shaft motor pulley 201 is fixed to an output shaft of the main shaft driving motor 2 through key connection. A reducer input end pulley 301 is fixed to an input shaft of the reducer body 3 through key connection. The main shaft motor pulley 201 and the reducer input end pulley 301 are drivingly connected through a main shaft driving belt. The first output end of the reducer body 3 is fixedly connected to one end of the main shaft body 12 away from the rotor body 19 through a shaft coupling. A bearing seat is fixed to one side of the main shaft body 12 close to the reducer body 3 to support the main shaft body 12. The other end of the main shaft body 12 is supported by the rotor body 19. In use, the main shaft driving motor 2 is started. The output shaft of the main shaft driving motor 2 drives the input shaft of the reducer body 3 to rotate. Then, the first output end of the reducer body 3 drives the main shaft body 12 to rotate.

[0057] In the embodiment, the second output end (the reducer with two output ends is the prior art) of the reducer body 3 is fixed with a reducer output end pulley 302, the reducer output end pulley 302 is connected with a beating pulley 401 through a beating belt, the beating pulley 401 is fixed to one end of a beating rotating shaft 4, both ends of the beating rotating shaft 4 are respectively fixed with a bearing seat for supporting the beating rotating shaft 4, the beating rotating shaft 4 is rotationally connected to a beating support 6, the beating support 6 is fixed to the support main body 1, a plurality of beating pieces 5 are fixed to the beating rotating shaft 4, as shown in Figure 1 , the plurality of beating pieces 5 are fixed to both sides of the beating rotating shaft 4 at intervals, specifically, a plurality of angle steels are fixed to the beating rotating shaft 4, the beating pieces 5 are fixed to the angle steels through screws, the beating pieces 5 are arc-shaped pieces, and the beating pieces 5 (the outer side of the arc-shaped pieces) are used for beating the outer side wall of the outer drum screen body 7. In use, under the driving of the main shaft driving motor 2, both the first output end and the second output end of the reducer body 3 can rotate, wherein the reducer output end pulley 302 on the second output end drives the beating pulley 401 to rotate under the action of the beating belt, so that the beating rotating shaft 4 rotates, and finally the plurality of beating pieces 5 can continuously beat the outer wall of the outer drum screen body 7, which can effectively beat the material attached to the inner wall of the outer drum screen body 7.

[0058] In the embodiment, as shown in Figure 3 , two material guide plates 20 are fixed to the lower end of the support main body 1, the two material guide plates 20 are located on both sides of the outer drum screen body 7, the two material guide plates 20 are inclinedly arranged, and the distance between the two material guide plates 20 gradually decreases from top to bottom, that is, the two material guide plates 20 are in an inverted eight-shaped type. The purpose of such arrangement is to avoid the material in the outer drum screen body 7 from splashing everywhere and being inconvenient to collect, so that the material coming out of the outer drum screen body 7 can be effectively collected on the material conveying belt below and then transported away.

[0059] In the embodiment, the outer drum screen body 7 includes a plurality of outer drum screen flanges 13, the plurality of outer drum screen flanges 13 are fixed to the main shaft body 12 through key connection, and the plurality of outer drum screen flanges 13 are distributed at intervals, the outer side of each outer drum screen flange 13 is fixed with an outer drum screen fixing frame 14, the outer drum screen fixing frame 14 and the outer drum screen flange 13 are of an integrated structure, and a circular flat steel structure is fixed to the outer surface of each outer drum screen fixing frame 14, the specific structure and shape can be referred to as Figures 5-6 , the outer drum screen flange 13 and the outer drum screen fixing frame 14 are both five, of course, the number and interval of the outer drum screen flange 13 and the outer drum screen fixing frame 14 can also be adjusted according to the actual length by those skilled in the art. As shown in Figure 3 , the outer drum screen body 7 includes a plurality of outer screen plates 71, for the specific connection structure of the outer screen plate 71, please refer to Figure 5To illustrate, the outer roller screen fixed frame 14 is fixed with flat steel 75, a plurality of connecting rods are fixed between the adjacent two flat steels 75, used to enhance the connection strength between the adjacent two flat steels 75, the adjacent two flat steels 75 are used to fix the outer screen plate 71, in the embodiment, three outer screen plates 71 are arranged between the adjacent two flat steels 75, the arc of each outer screen plate 71 is 120°, and the three outer screen plates 71 are fixed around the circumference of the flat steel 75 to form a complete cylindrical filtering structure. In order to realize the fixation between the adjacent two outer screen plates, one connecting angle steel 74 is fixed on each side of each outer screen plate through a screw, and the two connecting angle steels 74 between the adjacent two outer screen plates are fixed through a channel steel 73, the two connecting angle steels 74 are respectively fixed on both sides of the channel steel 73 through a screw, and finally the fixation of the outer screen plate can be realized. A plurality of screen holes are arranged on each outer screen plate, and the screen holes on the outer screen plate are matched with the final required material particle size, of course, the specific size of the outer screen plate can be adjusted by the person skilled in the art according to the needs.

[0060] In the embodiment, the primary roller screen 15 includes a primary fixed plate, the primary fixed plate is fixed on an outer roller screen fixed frame 14 through welding, Figure 6 As can be seen, the primary fixed plate fixed on the outer roller screen fixed frame 14 on the far right side is fixed with a plurality of primary screen plates 72 on the side away from the main shaft driving assembly through welding, as for the fixation method of the primary screen plate 72 and the fixation method of the outer screen plate 71, both are fixed through connecting angle steel 74, channel steel 73, flat steel 75 and connecting rod 76, and the primary screen plate 72 is also three, the arc of each primary screen plate 72 is 120°, and for the specific connection relationship, the connection mode of the outer screen plate 71 can be referred to, and no more description is made here.

[0061] In the embodiment, the secondary roller screen 16 includes a secondary fixed plate and a plurality of secondary round steels, the secondary fixed plate is fixed on an outer roller screen fixed frame 14, such as Figure 6As shown, the second fixing plate is fixed on the second outer roller screen fixing frame 14 on the right side, and the second fixing plate is located on the side of the first fixing plate close to the main shaft driving assembly. The first fixing plate is provided with a plurality of first through holes, and the second fixing plate is provided with a plurality of second through holes. The first through holes and the second through holes are the same in position and number, and one second round steel sequentially passes through one second through hole and one first through hole. Since the first roller screen 15 and the second roller screen 16 are inclined, in order to prevent the second round steel from sequentially passing out of the first through hole and the second through hole, a limiting pin shaft is connected through the end of the second round steel close to the first through hole, the limiting pin shaft is perpendicular to the direction of the second round steel, the length of the limiting pin shaft is greater than the diameter of the first through hole, and the limiting pin shaft is used for limiting the second round steel. The second round steel is provided in a plug-in structure, so that the distance between two adjacent second round steels can be adjusted, so that the size of the screen hole of the second roller screen 16 can be adjusted, and the needs of different particle sizes of materials can be met. It should be noted that the limiting pin shaft can only limit the second round steel from passing out of the first through hole and the second through hole, and cannot limit the rotation of the second round steel. With the continuous rotation of the second roller screen 16, the material in the second roller screen 16 will continuously hit the second round steel, so that the second round steel will also rotate. Under the driving of the overall rotation of the second roller screen 16 and the rotation of the second round steel, the crushing effect of the material can be further improved. In addition, the second round steel is a wear-resistant pipe, which improves the wear resistance of the second round steel and prolongs the service life of the accessory.

[0062] In the embodiment, the cutter assembly includes a cutter support 17, the cutter support 17 includes a cutter cylinder, both ends of the cutter cylinder are fixed with a cutter fixing plate, the rotor body 19 can pass through the cutter fixing plate, the cutter support 17 (cutter cylinder) is fixed on the rotor body 19 through key connection, and a plurality of hammer head cutters 18 are uniformly fixed on the circumferential direction of the cutter support 17 through a pin. The hammer head cutters 18 are used for crushing the material, and the number of the hammer head cutters 18 can be selected by a person skilled in the art according to actual needs, and the hammer head cutters 18 can also be replaced by other types of cutters.

[0063] The principles and implementation manners of the present application are described by using specific examples in the specification, and the above examples are only used to help understand the method and core idea of the present application; meanwhile, for a person skilled in the art, the specific implementation manners and application ranges can be changed according to the idea of the present application. In conclusion, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A crushing and screening integrated machine, characterized in that, include: Supporting entity; A spindle drive assembly is fixed to the support body, and the output end of the spindle drive assembly is fixedly connected to the spindle body. The spindle drive assembly can drive the spindle body to rotate. A rotor drive assembly is fixed to the support body. The spindle drive assembly and the rotor drive assembly are located on opposite sides of the support body. The output end of the rotor drive assembly is fixedly connected to a rotor body. The rotor body has a rotor through hole. The end of the spindle body away from the spindle drive assembly can extend into the rotor through hole. The rotation direction of the spindle body is opposite to the rotation direction of the rotor body. The outer roller screen body is fixed to the outside of the main shaft body. The outer roller screen body includes several outer roller screen flanges, which are fixed to the main shaft body. An outer roller screen fixing frame is fixed to the outside of each outer roller screen flange, and an outer screen plate is fixed to the outside of the outer roller screen fixing frame. Each outer screen plate is provided with several screen holes, and the screen holes on the outer screen plate must match the final required particle size of the material. A primary roller screen is fixed to the outer roller screen body on the side near the rotor drive assembly. A cover plate is fixed on the side of the primary roller screen near the rotor drive assembly. The cover plate has an opening, and a feed gate plate is provided at the opening. The feed gate plate has a feed inlet. The primary roller screen includes a primary fixing plate, which is fixed to the rightmost outer roller screen fixing frame. A primary screen plate is fixed on the side of the primary fixing plate away from the main shaft drive assembly. A secondary roller screen is fixed to the inner side of the outer roller screen body and is located on the side of the primary roller screen near the main shaft drive assembly. The secondary roller screen includes a secondary fixing plate, which is fixed on the second outer roller screen fixing frame on the right side and is located on the side of the primary fixing plate near the main shaft drive assembly. A cutting tool assembly is fixed to the outside of the rotor body and located inside the primary roller screen and the secondary roller screen.

2. The integrated crushing and screening machine according to claim 1, characterized in that: There is a gap between the feed gate plate and the cover plate. One side of the feed gate plate is fixed to the support body, and the rotor body passes through the feed gate plate.

3. The integrated crushing and screening machine according to claim 1, characterized in that: The rotor drive assembly includes a rotor drive motor, which is fixed to the support body. The output shaft of the rotor drive motor is fixed with a rotor motor pulley. The rotor motor pulley is connected to a rotor pulley via a rotor drive belt. The rotor pulley is fixed to one end of the rotor body away from the main shaft body.

4. The integrated crushing and screening machine according to claim 1, characterized in that: The spindle drive assembly includes a spindle drive motor and a reducer body. Both the spindle drive motor and the reducer body are fixed to the support body. A spindle motor pulley is fixed on the output shaft of the spindle drive motor, and a reducer input pulley is fixed on the input shaft of the reducer body. The spindle motor pulley and the reducer input pulley are connected by a spindle drive belt. The first output end of the reducer body is fixedly connected to the end of the spindle body away from the rotor body.

5. The integrated crushing and screening machine according to claim 4, characterized in that: The second output end of the reducer body is fixed with a reducer output pulley. The reducer output pulley is connected to a slapping pulley via a slapping belt drive. The slapping pulley is fixed to one end of a slapping shaft. The slapping shaft is rotatably connected to a slapping bracket. Several slapping blades are fixed on the slapping shaft. The slapping blades are used to slap the outer side wall of the outer roller screen body.

6. The integrated crushing and screening machine according to claim 1, characterized in that: Two guide plates are fixed at the lower end of the support body. The two guide plates are located on both sides of the outer roller screen body. The two guide plates are inclined and the distance between the two guide plates gradually decreases from top to bottom.

7. The integrated crushing and screening machine according to claim 1, characterized in that: The secondary roller screen includes several secondary round steel bars. The primary fixing plate has several primary through holes, and the secondary fixing plate has several secondary through holes. One of the secondary round steel bars passes through one secondary through hole and one primary through hole in sequence. A limiting pin is connected to one end of the secondary round steel bar near the primary through hole. The limiting pin is used to limit the movement of the secondary round steel bar.

8. The integrated crushing and screening machine according to claim 1, characterized in that: The cutting tool assembly includes a blade support, which is fixed to the rotor body, and a plurality of hammer blades are uniformly fixed on the blade support in the circumferential direction.

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