Integrated construction waste multi-stage sorting and crushing machine

Abstract

The utility model discloses an integrated building rubbish multistage sorting and rubbing crusher relates to building rubbish rubbing machine technical field, and the utility model discloses a crushing box and support platform are included, the support platform is equipped in the crushing box lower extreme surface, and with crushing box connection, the crushing box upper end rear side is provided with pre -crushing bucket, and the pre -crushing bucket lower extreme is inclined to crushing box inside, and with crushing box upper end rear side fixed connection, and intercommunication. The utility model discloses a crushing box, support platform, pre -crushing bucket, fine crushing mechanism, coarse crushing mechanism, coarse crushing roll, motor no.

Description

Technical Field

[0001] This utility model relates to the technical field of construction waste crushers, specifically an integrated multi-stage sorting and crushing machine for construction waste. Background Technology

[0002] Construction waste mainly consists of various components such as concrete blocks and brick fragments. If it is directly landfilled or piled up, it will not only occupy a large amount of land resources, but may also pollute the soil and groundwater due to the leakage of harmful substances, posing a serious threat to the ecological environment. Therefore, the resource recycling of construction waste has become an important issue in the field of environmental protection and resource recycling. As the core link of construction waste recycling, the efficiency and effect of crushing directly determine the quality of subsequent resource utilization. However, when existing crushers are in use, construction waste of various sizes that differ greatly is directly mixed into the same crushing chamber for processing. When materials of different sizes are mixed and crushed, small particles are easily over-crushed, generating a large amount of dust, while large particles may not reach the expected particle size due to insufficient crushing, resulting in uneven crushing effect and affecting the crushing efficiency. Utility Model Content

[0003] To address the problems mentioned in the background art, the purpose of this utility model is to provide an integrated multi-stage sorting and crushing machine for construction waste. This machine has the advantages of screening construction waste first and then performing coarse and fine crushing in stages, preventing material blockage, and improving the crushing effect. To a certain extent, it improves or solves the problem that when existing crushers are used, various types of construction waste with significant size differences are directly mixed into the same crushing chamber for processing. When large and small materials are mixed and crushed, small particles are easily over-crushed, generating a large amount of dust, while large particles may not reach the expected particle size due to insufficient crushing, resulting in uneven crushing effect and affecting the crushing efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an integrated multi-stage sorting and crushing machine for construction waste, comprising a crushing box and a support platform. The support platform is sleeved on the lower surface of the crushing box and connected to the crushing box. A pre-crushing hopper is provided on the rear side of the upper end of the crushing box. The lower end of the pre-crushing hopper is inclined inward towards the crushing box and is fixedly connected to and communicates with the rear side of the upper end of the crushing box. A fine crushing mechanism is provided at the lower end of the crushing box. A coarse crushing mechanism is provided inside the pre-crushing hopper. A screening mechanism is provided at the top of the crushing box. An anti-blocking component is provided on the lower side of the pre-crushing hopper.

[0005] In a preferred embodiment of this invention, the fine crushing mechanism includes a fine crushing roller, a motor, gears, and a protective shell. There are two fine crushing rollers, respectively located on the front and rear sides of the lower end of the crushing chamber. Both ends of the two fine crushing rollers extend out of the crushing chamber and are rotatably connected to it. The motor is fixedly connected to the left end of the front fine crushing roller and to the left side surface of the crushing chamber. There are two gears, respectively fixedly connected to the right ends of the two fine crushing rollers and meshing with each other. The protective shell is fitted over the outside of the two gears and is fixedly connected to the right side surface of the crushing chamber.

[0006] In a preferred embodiment of this invention, the screening mechanism includes support columns, springs, a screen plate, screen holes, and a vibrating motor. There are four support columns, each fixedly connected to one of the four corners of the upper surface of the crushing chamber. There are four springs, each fixedly connected to the upper surface of one of the four support columns. The screen plate is fixedly connected to the upper ends of the four springs. The rear end of the screen plate is an open discharge end, corresponding to the upper end of the pre-crushing hopper. There are several screen holes, evenly distributed on the bottom surface of the screen plate, arranged in a rectangular pattern to correspond to the opening at the upper end of the crushing chamber. There are two vibrating motors, each fixedly connected to the left and right sides of the screen plate.

[0007] In a preferred embodiment of this invention, the coarse crushing mechanism includes a coarse crushing roller, a second motor, a second gear, and a second protective shell. There are two coarse crushing rollers, respectively located on the front and rear sides of the upper part of the pre-crushing hopper. Both ends of the two coarse crushing rollers extend out of the pre-crushing hopper and are rotatably connected to it. The second motor is fixedly connected to the left end of the rear coarse crushing roller and to the left side surface of the pre-crushing hopper. There are two second gears, respectively fixedly connected to the right ends of the two coarse crushing rollers and meshing with each other. The second protective shell is fitted over the outside of the two second gears and is fixedly connected to the right side surface of the pre-crushing hopper.

[0008] As a preferred embodiment of this invention, a compression wheel is fitted onto the left end of the front coarse crushing roller, and the compression wheel is fixedly connected to the coarse crushing roller.

[0009] In a preferred embodiment of this invention, the anti-blocking assembly includes a rotating seat, a striking plate, a tension spring, an L-shaped rod, and a pressure plate. The rotating seat is fixedly connected to the rear side of the lower surface of the pre-crushing hopper. The rear end of the striking plate is sleeved on the surface of the rotating seat and rotatably connected to it. There are three tension springs, which are evenly fixedly connected to the front end of the upper surface of the striking plate and arranged left and right. The upper ends of the three tension springs are fixedly connected to the lower surface of the pre-crushing hopper. The L-shaped rod is fixedly connected to the front end of the left surface of the striking plate. The left end of the L-shaped rod is bent upwards and located below the extrusion wheel. The pressure plate is fixedly connected to the upper left side of the L-shaped rod and corresponds to and is adapted to the extrusion wheel.

[0010] As a preferred embodiment of this invention, a plurality of rubber protrusions are pressed and fixedly connected to the upper surface of the striking plate, and the rubber protrusions are in contact with the lower surface of the pre-crushing bucket.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, through the coordinated use of a crushing box, support platform, pre-crushing hopper, fine crushing mechanism, fine crushing roller, motor one, gear one, protective shell one, coarse crushing mechanism, coarse crushing roller, motor two, gear two, protective shell two, anti-blocking component, rotating seat, striking plate, tension spring, L-shaped rod, pressure plate, screening mechanism, support column, spring, screen plate, screen hole, vibrating motor, extrusion wheel, and rubber protrusion, improves or solves to a certain extent the problem of existing crushers where various types of construction waste with significant size differences are directly mixed into the same crushing chamber for processing. When large and small materials are mixed and crushed, small particles are easily over-crushed, generating a large amount of dust, while large particles may not reach the expected particle size due to insufficient crushing, resulting in uneven crushing effect and affecting the crushing efficiency.

[0012] 2. This utility model achieves fine crushing by setting up a fine crushing mechanism and using double rollers to rotate synchronously in opposite directions. This not only ensures that the crushed construction waste has a uniform particle size, but also prevents the gears from being contaminated by dust through the protective shell, thus extending the service life of the mechanism.

[0013] 3. This utility model achieves precise sorting of construction waste by setting up a screening mechanism that uses high-frequency vibration in conjunction with the screen holes. It can not only initially separate materials of different sizes to adapt to different subsequent crushing processes, but also reduce the impact of vibration on the overall equipment through spring buffering, thereby improving operational stability.

[0014] 4. This utility model achieves efficient coarse crushing of large pieces of construction waste by setting up a coarse crushing mechanism and using the synchronous reverse rotation of two rollers. At the same time, the extrusion wheel works in conjunction with the coarse crushing roller to provide power for the anti-clogging component. No additional drive components are required, which simplifies the structure and reduces energy consumption. The protective shell can also protect the gear from dust corrosion.

[0015] 5. This utility model achieves automatic anti-blocking by setting an anti-blocking component and using the power of the coarse crushing mechanism, without the need for an additional drive source. At the same time, the rubber protrusions can reduce the wear of the pre-crushing bucket by the clapping, thus balancing the anti-blocking effect and equipment protection. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the pulverizer of this utility model; Figure 2 This is a cross-sectional three-dimensional structural diagram of the crusher; Figure 3 This is a schematic diagram of the exploded three-dimensional structure of a crusher; Figure 4 A three-dimensional structural diagram of the explosion-proof component.

[0017] In the diagram: 1. Crushing box; 2. Support platform; 3. Pre-crushing hopper; 4. Fine crushing mechanism; 41. Fine crushing roller; 42. Motor 1; 43. Gear 1; 44. Protective shell 1; 5. Coarse crushing mechanism; 51. Coarse crushing roller; 52. Motor 2; 53. Gear 2; 54. Protective shell 2; 6. Anti-blocking component; 61. Rotating seat; 62. Beating plate; 63. Tension spring; 64. L-shaped rod; 65. Pressure plate; 7. Screening mechanism; 71. Support column; 72. Spring; 73. Screen plate; 74. Screen hole; 75. Vibrating motor; 8. Extrusion wheel; 9. Rubber protrusion. Detailed Implementation

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0021] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0022] Example 1

[0023] Reference Figure 1-4 This is the first embodiment of the present invention, which provides an integrated multi-stage sorting and crushing machine for construction waste, including a crushing box 1 and a support platform 2. The support platform 2 is sleeved on the lower surface of the crushing box 1 and connected to the crushing box 1. A pre-crushing hopper 3 is provided on the upper rear side of the crushing box 1. The lower end of the pre-crushing hopper 3 is inclined towards the inside of the crushing box 1 and is fixedly connected to and communicates with the upper rear side of the crushing box 1. A fine crushing mechanism 4 is provided at the lower end of the inside of the crushing box 1. A coarse crushing mechanism 5 is provided inside the pre-crushing hopper 3. A screening mechanism 7 is provided at the top of the crushing box 1. An anti-blocking component 6 is provided on the lower side of the pre-crushing hopper 3.

[0024] Specifically, this crusher integrates screening, coarse crushing, anti-clogging, and fine crushing to process construction waste in segments according to size. This avoids excessive crushing of small particles that would generate dust, while ensuring that large particles are fully crushed, thus improving crushing uniformity and processing efficiency.

[0025] Furthermore, the screening mechanism 7 first sorts the construction waste by size. Small particles directly enter the crushing box 1, while large particles enter the pre-crushing hopper 3 and are processed by the coarse crushing mechanism 5. The anti-blocking component 6 simultaneously prevents material blockage. Finally, the fine crushing mechanism 4 in the crushing box 1 performs fine crushing on all materials, completing the multi-stage processing flow.

[0026] Example 2 In the second embodiment of this utility model, the fine crushing mechanism 4 includes a fine crushing roller 41, a motor 42, a gear 43, and a protective shell 44. There are two fine crushing rollers 41, which are respectively arranged on the front and rear sides of the lower end of the crushing box 1. The left and right ends of the two fine crushing rollers 41 extend out of the crushing box 1 and are rotatably connected to the crushing box 1. The motor 42 is fixedly connected to the left end of the front fine crushing roller 41 and is fixedly connected to the left side surface of the crushing box 1. There are two gears 43, which are respectively fixedly connected to the right end of the two fine crushing rollers 41 and mesh with each other. The protective shell 44 is sleeved on the outside of the two gears 43 and is fixedly connected to the right side surface of the crushing box 1.

[0027] Specifically, by setting up a fine crushing mechanism 4, fine crushing is achieved through the synchronous reverse rotation of two rollers. This ensures that the crushed construction waste has a uniform particle size, and the protective shell 44 prevents the gears 43 from being contaminated by dust, thus extending the service life of the mechanism.

[0028] Furthermore, after the motor 42 starts, it drives the front fine crushing roller 41 to rotate. The front fine crushing roller 41 drives the rear fine crushing roller 41 to rotate synchronously in opposite directions through two meshing gears 43 on the right end. The two fine crushing rollers 41 form opposing extrusion force to perform secondary fine crushing on the material entering the crushing box 1. At the same time, the protective shell 44 protects the gears 43 to prevent dust generated during the crushing process from adhering and affecting the gear transmission effect. Example 3

[0029] In the third embodiment of this utility model, the screening mechanism 7 includes support columns 71, springs 72, a screen plate 73, screen holes 74, and a vibrating motor 75. There are four support columns 71, which are fixedly connected to the four corners of the upper surface of the crushing box 1. There are four springs 72, which are fixedly connected to the upper surfaces of the four support columns 71. The screen plate 73 is fixedly connected to the upper ends of the four springs 72. The rear end of the screen plate 73 is an open discharge end, which corresponds to the upper end of the pre-crushing hopper 3. There are several screen holes 74, which are evenly opened on the bottom surface of the screen plate 73. The several screen holes 74 are arranged in a rectangle to correspond to the opening at the upper end of the crushing box 1. There are two vibrating motors 75, which are fixedly connected to the left and right sides of the screen plate 73.

[0030] Specifically, by setting up a screening mechanism 7, high-frequency vibration is used in conjunction with the screen holes 74 to achieve precise sorting of construction waste. This not only allows for the initial separation of materials of different sizes to adapt to different subsequent crushing processes, but also reduces the impact of vibration on the overall equipment through the spring 72, thereby improving operational stability.

[0031] Furthermore, after the vibration motor 75 starts, it drives the screen plate 73 to vibrate. The spring 72 cooperates with the support column 71 and the screen plate 73 to buffer and keep the screen plate 73 vibrating stably at high frequency. After the construction waste is put into the screen plate 73, small particles that meet the size of the screen hole 74 fall into the crushing box 1 through the screen hole 74, while large particles that exceed the size limit slide into the pre-crushing hopper 3 along the open discharge end at the rear end of the screen plate 73, completing the initial sorting of materials. Example 4

[0032] In the fourth embodiment of this utility model, the coarse crushing mechanism 5 includes a coarse crushing roller 51, a second motor 52, a second gear 53, and a second protective shell 54. There are two coarse crushing rollers 51, which are respectively arranged on the front and rear sides of the upper part of the pre-crushing hopper 3. The left and right ends of the two coarse crushing rollers 51 extend out of the pre-crushing hopper 3 and are rotatably connected to the pre-crushing hopper 3. The second motor 52 is fixedly connected to the left end of the rear coarse crushing roller 51 and is fixedly connected to the left side surface of the pre-crushing hopper 3. There are two second gears 53, which are respectively fixedly connected to the right end of the two coarse crushing rollers 51 and are meshed with each other. The second protective shell 54 is sleeved on the outside of the two second gears 53 and is fixedly connected to the right side surface of the pre-crushing hopper 3. A compression wheel 8 is fitted onto the left end of the front coarse crushing roller 51, and the compression wheel 8 is fixedly connected to the coarse crushing roller 51.

[0033] Specifically, by setting up a coarse crushing mechanism 5, large pieces of construction waste are efficiently crushed through the synchronous reverse rotation of two rollers. At the same time, the extrusion wheel 8, in conjunction with the coarse crushing roller 51, provides power to the anti-clogging component 6. No additional drive components are required, which simplifies the structure and reduces energy consumption. The protective shell 2 54 can also protect the gear 2 53 from dust corrosion.

[0034] Furthermore, after the motor 52 starts, it drives the rear coarse crushing roller 51 to rotate. The rear coarse crushing roller 51 drives the front coarse crushing roller 51 to rotate synchronously in the opposite direction through two meshing gears 53 on the right end. The two coarse crushing rollers 51 crush the large pieces of material entering the pre-crushing hopper 3. At the same time, the front coarse crushing roller 51 drives the left end of the extrusion wheel 8 to rotate synchronously, providing power for the subsequent anti-blocking component 6 to beat. The protective shell 54 isolates the dust generated by crushing and prevents it from adhering to the surface of the gears 53 and affecting the transmission accuracy.

[0035] Example 5 In the fifth embodiment of this utility model, the anti-blocking component 6 includes a rotating seat 61, a striking plate 62, a tension spring 63, an L-shaped rod 64, and a pressure plate 65. The rotating seat 61 is fixedly connected to the rear side of the lower surface of the pre-crushing hopper 3. The rear end of the striking plate 62 is sleeved on the surface of the rotating seat 61 and rotatably connected to the rotating seat 61. There are three tension springs 63, which are evenly fixedly connected to the front end of the upper surface of the striking plate 62 and arranged left and right. The upper ends of the three tension springs 63 are fixedly connected to the lower surface of the pre-crushing hopper 3. The L-shaped rod 64 is fixedly connected to the front end of the left surface of the striking plate 62. The left end of the L-shaped rod 64 is bent upward at 90 degrees and is located below the extrusion wheel 8. The pressure plate 65 is fixedly connected to the upper left side of the L-shaped rod 64 and corresponds to and is adapted to the extrusion wheel 8. Several rubber protrusions 9 are pressed and fixedly connected to the upper surface of the beater plate 62, and the rubber protrusions 9 are in contact with the lower surface of the pre-crushing bucket 3.

[0036] Specifically, by setting up the anti-blocking component 6, the coarse crushing mechanism 5 is used to achieve automatic anti-blocking by slapping, without the need for an additional drive source. At the same time, the rubber protrusion 9 can reduce the wear of the pre-crushing bucket 3 by slapping, thus taking into account both the anti-blocking effect and equipment protection.

[0037] Furthermore, when the front coarse crushing roller 51 drives the extrusion roller 8 to rotate, the extrusion roller 8 presses down on the pressure plate 65 once for each rotation. The pressure plate 65 drives the beater plate 62 to rotate downward around the rotating seat 61 through the L-shaped rod 64 and stretches the tension spring 63. When the extrusion roller 8 separates from the pressure plate 65, the tension spring 63 rebounds and pulls the beater plate 62 to reset. The rubber protrusion 9 on it beats the lower surface of the pre-crushing hopper 3 upward. Through repeated beating, the material is prevented from accumulating and clogging at the lower opening of the pre-crushing hopper 3.

[0038] Working principle:

[0039] When in use, the construction waste to be processed is first put into the screen plate 73 of the screening mechanism 7, and the vibration motor 75 is started. The vibration motor 75 drives the screen plate 73 to vibrate at high frequency with the cooperation of the support column 71 and the spring 72. At this time, smaller construction waste particles that meet the size of the screen hole 74 will fall directly into the crushing box 1 through the screen hole 74, while construction waste that is too large cannot pass through the screen hole 74 and slides into the pre-crushing hopper 3 along the open rear discharge end of the screen plate 73, completing the preliminary sorting operation. Next, the coarse crushing mechanism 5 inside the pre-crushing hopper 3 is started. Motor 2 52 drives the rear coarse crushing roller 51 to rotate. The rear coarse crushing roller 51 drives the front coarse crushing roller 51 to rotate synchronously in the opposite direction through the gear 2 53 meshing with each other on the right end. The two coarse crushing rollers 51 perform coarse crushing on the large pieces of construction waste entering the pre-crushing hopper 3, crushing them to a size that can enter the crushing box 1. The crushed material automatically slides into the crushing box 1 along the inclined lower end of the pre-crushing hopper 3. During this process, when the front coarse crushing roller 51 rotates, it will synchronously drive the left end extrusion roller 8 to rotate. Each time the extrusion roller 8 rotates, it will press down on the pressure plate 65 of the anti-blocking component 6. After the pressure plate 65 is subjected to force, it will drive the beater plate 62 to rotate downward around the rotating seat 61 through the L-shaped rod 64. When the extrusion roller 8 separates from the pressure plate 65, the rebound force of the tension spring 63 will pull the beater plate 62 to quickly reset and beat the lower surface of the pre-crushing hopper 3 upward. Through the repeated beating of the beater plate 62, the material after coarse crushing can be effectively prevented from accumulating and blocking at the lower opening of the pre-crushing hopper 3, ensuring that the material is stably conveyed to the crushing box 1. Finally, the fine crushing mechanism 4 inside the crushing box 1 is started. The motor 42 drives the front fine crushing roller 41 to rotate. The front fine crushing roller 41 drives the rear fine crushing roller 41 to rotate synchronously in the opposite direction through the gear 43 meshing with each other on the right end. The two fine crushing rollers 41 perform secondary fine crushing on the material entering the crushing box 1, and finally obtain crushed products with uniform particle size.

[0040] In summary, by using the combination of the following components—crushing box 1, support platform 2, pre-crushing hopper 3, fine crushing mechanism 4, fine crushing roller 41, motor 1 42, gear 1 43, protective shell 1 44, coarse crushing mechanism 5, coarse crushing roller 51, motor 2 52, gear 2 53, protective shell 2 54, anti-blocking component 6, rotating seat 61, striking plate 62, tension spring 63, L-shaped rod 64, pressure plate 65, screening mechanism 7, support column 71, spring 72, screen plate 73, screen hole 74, vibrating motor 75, extrusion wheel 8, and rubber protrusion 9—the system achieves the effect of screening construction waste before staged coarse and fine crushing, preventing material blockage, and improving crushing efficiency.

[0041] The motor 42, gear 43, motor 52, gear 53, vibration motor 75, spring 72, and tension spring 63 used in this application can be additionally equipped with protective measures of common knowledge in this technical field under different usage environments. These measures include, but are not limited to, the following: protective covers for equipment protection, dustproof nets for equipment dust prevention, and sealing components or waterproof coatings for equipment waterproofing. These are common technical means used by those skilled in the art.

[0042] It should be noted that motor 42, gear 43, motor 52, gear 53, vibration motor 75, spring 72, and tension spring 63 are existing devices or equipment, or devices or equipment that can be implemented with existing technology. The power supply, connection method, usage method, power source, fixing method, installation method, control method, etc. of the equipment, as well as the materials of each accessory and the selection of various parameters are common knowledge to those skilled in the art, and therefore will not be described in detail in this application document.

[0043] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0044] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0045] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An integrated multi-stage sorting and crushing machine for construction waste, comprising a crushing box (1) and a support platform (2), wherein the support platform (2) is sleeved on the lower surface of the crushing box (1) and connected to the crushing box (1), characterized in that: A pre-crushing hopper (3) is provided on the rear side of the upper end of the crushing box (1). The lower end of the pre-crushing hopper (3) is inclined towards the inside of the crushing box (1) and is fixedly connected to the rear side of the upper end of the crushing box (1) and communicates with it. A fine crushing mechanism (4) is provided at the lower end of the inside of the crushing box (1). A coarse crushing mechanism (5) is provided inside the pre-crushing hopper (3). A screening mechanism (7) is provided at the top of the crushing box (1). An anti-blocking component (6) is provided on the lower side of the pre-crushing hopper (3).

2. The integrated multi-stage sorting and crushing machine for construction waste according to claim 1, characterized in that: The fine crushing mechanism (4) includes a fine crushing roller (41), a motor (42), a gear (43), and a protective shell (44). There are two fine crushing rollers (41), which are respectively located on the front and rear sides of the lower end of the crushing box (1). The left and right ends of the two fine crushing rollers (41) extend out of the crushing box (1) and are rotatably connected to the crushing box (1). The motor (42) is fixedly connected to the left end of the front fine crushing roller (41) and is fixedly connected to the left side surface of the crushing box (1). There are two gears (43), which are respectively fixedly connected to the right end of the two fine crushing rollers (41) and mesh with each other. The protective shell (44) is sleeved on the outside of the two gears (43) and is fixedly connected to the right side surface of the crushing box (1).

3. The integrated multi-stage sorting and crushing machine for construction waste according to claim 1, characterized in that: The screening mechanism (7) includes support columns (71), springs (72), screen disc (73), screen holes (74), and vibration motors (75). There are four support columns (71), which are fixedly connected to the four corners of the upper surface of the crushing box (1). There are four springs (72), which are fixedly connected to the upper surface of the four support columns (71). The screen disc (73) is fixedly connected to the upper end of the four springs (72). The rear end of the screen disc (73) is an open discharge end, which corresponds to the upper end of the pre-crushing hopper (3). There are several screen holes (74), which are evenly opened on the bottom surface of the screen disc (73). The several screen holes (74) are arranged in a rectangle, which corresponds to the opening at the upper end of the crushing box (1). There are two vibration motors (75), which are fixedly connected to the left and right sides of the screen disc (73).

4. The integrated multi-stage sorting and crushing machine for construction waste according to claim 1, characterized in that: The coarse crushing mechanism (5) includes a coarse crushing roller (51), a second motor (52), a second gear (53), and a second protective shell (54). There are two coarse crushing rollers (51), which are respectively located on the front and rear sides of the upper part of the pre-crushing bucket (3). The left and right ends of the two coarse crushing rollers (51) extend out of the pre-crushing bucket (3) and are rotatably connected to the pre-crushing bucket (3). The second motor (52) is fixedly connected to the left end of the rear coarse crushing roller (51) and is fixedly connected to the left side surface of the pre-crushing bucket (3). There are two second gears (53), which are respectively fixedly connected to the right ends of the two coarse crushing rollers (51) and are meshed with each other. The second protective shell (54) is sleeved on the outside of the two second gears (53) and is fixedly connected to the right side surface of the pre-crushing bucket (3).

5. An integrated multi-stage sorting and crushing machine for construction waste according to claim 4, characterized in that: A compression wheel (8) is fitted on the left end of the front coarse crushing roller (51), and the compression wheel (8) is fixedly connected to the coarse crushing roller (51).

6. An integrated multi-stage sorting and crushing machine for construction waste according to claim 5, characterized in that: The anti-blocking component (6) includes a rotating seat (61), a striking plate (62), a tension spring (63), an L-shaped rod (64), and a pressure plate (65). The rotating seat (61) is fixedly connected to the rear side of the lower surface of the pre-crushing bucket (3). The rear end of the striking plate (62) is sleeved on the surface of the rotating seat (61) and rotatably connected to the rotating seat (61). There are three tension springs (63), which are evenly fixedly connected to the front end of the upper surface of the striking plate (62) and arranged left and right. The upper ends of the three tension springs (63) are fixedly connected to the lower surface of the pre-crushing bucket (3). The L-shaped rod (64) is fixedly connected to the front end of the left surface of the striking plate (62). The left end of the L-shaped rod (64) is bent upward at 90 degrees and is located below the extrusion wheel (8). The pressure plate (65) is fixedly connected to the upper left side of the L-shaped rod (64) and corresponds to and is adapted to the extrusion wheel (8).

7. An integrated multi-stage sorting and crushing machine for construction waste according to claim 6, characterized in that: The upper surface of the patting plate (62) is fixedly connected with several rubber protrusions (9), and the rubber protrusions (9) are in contact with the lower surface of the pre-crushing bucket (3).

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