A crushing device for treating construction solid waste

Abstract

This invention discloses a crushing device for treating construction solid waste, relating to the field of construction waste treatment technology. It includes a crusher comprising an eccentric shaft, a movable jaw plate, a fixed frame, and a fixed jaw plate. It further includes: a rotating frame rotatably mounted on the side of the fixed frame; a rotating disk rotatably mounted on the side of the fixed jaw plate; the rotating frame and the rotating disk being coaxially and fixedly connected; and symmetrical push columns fixedly connected to the circumferential surface of the rotating frame. This invention, through a swing mechanism, cyclically changes the angle of the rotating disk during the crushing process, thereby adjusting the friction angle and friction force experienced by the crushed particles. This prevents slippage due to the special shape of the particles during crushing, ensuring continuous crushing of the particles. Simultaneously, it avoids excessive friction on the movable and fixed jaw plates caused by prolonged sliding within the crushing chamber, ensuring the service life of the movable and fixed jaw plates.

Description

Technical Field

[0001] This invention relates to the field of construction waste treatment technology, specifically to a crushing device for treating construction solid waste. Background Technology

[0002] When recycling concrete fragments generated during building demolition, initial crushing is usually carried out on-site. The crushed fragments are then loaded onto trucks and transported to a crushing plant for further crushing, thereby reducing transportation costs and avoiding dust pollution generated during on-site crushing.

[0003] When using a hydraulic breaker to break up non-load-bearing partition walls in a residence, the thinness of the wall allows the impact to easily penetrate along its thickness, resulting in fragments primarily in the form of flakes and plates. When these concrete fragments are fed into a jaw crusher, their plate-like shape causes them to move to the sides of the conveyor belt during transport. If other fragments are present at the bottom of the plate-like concrete fragments, they will slide further to the sides, while if other fragments are present on their top surface, they will be pressed against the center line of the conveyor belt. This can cause several problems: Firstly, the uneven force distribution on both sides of the moving jaw plate during crushing can cause uneven wear and shorten its service life. Secondly, the force imbalance can be directly transmitted to the eccentric shaft, causing it to bear asymmetrical loads for a long time, resulting in local stress concentration on the eccentric shaft and excessive friction on related parts. Finally, when the slab-shaped concrete fragments are being conveyed, bridging, jamming, and slippage often occur, causing the slab-shaped concrete to move with the moving jaw plate in the crushing chamber instead of being crushed by the moving jaw plate, thus affecting the crushing production efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a crushing device for treating construction solid waste, so as to overcome the shortcomings of the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a crushing device for treating construction solid waste, comprising a crusher, which includes an eccentric shaft, a movable jaw plate, a fixed frame, and a fixed jaw plate, and further comprising: A rotating frame is rotatably mounted on the side of the fixed frame, and a rotating disk is rotatably mounted on the side of the fixed jaw plate. The rotating frame and the rotating disk are coaxially and fixedly connected, and symmetrical push columns are fixedly connected to the circumferential surface of the rotating frame. The oscillating mechanism includes a drive shaft, a driven shaft, and a first connecting rod. The drive shaft is rotatably mounted inside the crusher, and the driven shaft is rotatably mounted inside the fixed frame. The drive shaft and the driven shaft are connected by the first connecting rod to enable the driven shaft to oscillate back and forth. A symmetrical drive disc is fixedly sleeved on the driven shaft, and a symmetrical second connecting rod is movably sleeved on the driven shaft. A slanted protrusion is fixed on one side of the second connecting rod. When the drive disc rotates, it pushes the second connecting rod to move linearly through the slanted protrusion. The guiding mechanism includes a fixed block fixedly connected to the side of the fixed frame and a rotating block hinged to both sides of the fixed block. After the rotating block rotates, it pushes the concrete fragments toward the fixed block. The driving mechanism includes a housing fixedly connected inside the crusher, a rotating shaft rotatably mounted inside the housing, a drive shaft fixedly sleeved at one end of the rotating shaft, a lifting block slidably connected inside the housing with its top end abutting against the bottom surface of an adjacent rotating block, and an eccentric rod inside the drive shaft abutting against the bottom surface of the lifting block to drive the lifting block to move linearly reciprocating during rotation.

[0006] Preferably, a spur gear 1 is fixedly sleeved on the eccentric shaft, and a spur gear 2 is fixedly sleeved on both ends of the drive shaft. The spur gear 1 meshes with the spur gear 2, and the number of teeth of the spur gear 1 is less than that of the spur gear 2.

[0007] Preferably, the guiding mechanism further includes an isolation pad made of an elastic, wear-resistant material. One end of the isolation pad is fixed to the top surface of the fixed block and the top surface of the rotating block, respectively, and the other end is fixed to the top surface of the fixed frame and connected to the external conveyor belt.

[0008] Preferably, both ends of the drive shaft and the driven shaft are fixedly connected to cylinders, one end of the connecting rod is rotatably mounted on the cylinder on the side of the drive shaft, and the side of the connecting rod is provided with a sliding groove and is movably sleeved on the cylinder on the side of the driven shaft.

[0009] Preferably, the drive disc has two symmetrical connecting posts fixedly connected inside, the oblique side of the oblique protrusion abuts against one of the connecting posts, and the oblique protrusions on the two connecting rods are arranged in a mirror symmetrical manner.

[0010] Preferably, when the passive shaft drives the drive disc to reciprocate, the connecting post that abuts against the inclined side of the inclined protrusion presses against the inclined protrusion to drive the corresponding connecting rod two to move linearly.

[0011] Preferably, a guide frame is fixedly connected to the top surface of the outer shell, the top surface of the guide frame is inclined, a push frame is hinged inside the outer shell, the push frame is fan-shaped, the hinge axis of the push frame is located inside the outer shell, and an isolation plate is fixedly connected to the top surface of the push frame.

[0012] Preferably, the rotating shaft has multiple equidistant grooves, which are arc-shaped and connected to the outer circumferential surface of the rotating shaft. Multiple synchronously moving push blocks are slidably connected inside the housing. The bottom end of each push block abuts against the groove, and the top ends of the multiple push blocks abut against the bottom surface of the push frame.

[0013] Preferably, the rotating shaft has multiple grooves facing different directions. The grooves are arc-shaped and connected to the outer circumference of the rotating shaft. Multiple independently movable push blocks are slidably connected inside the housing. The bottom end of each push block abuts in the groove. The push frame is composed of multiple sector blocks that rotate around a common axis. The top end of each push block abuts the bottom surface of an adjacent sector block. A torsion spring is provided at the pivot of each sector block to drive it to rotate into the housing.

[0014] Preferably, a second helical gear is fixedly sleeved on the drive shaft, and a first helical gear is coaxially sleeved on the drive shaft, with the first helical gear meshing with the second helical gear.

[0015] The beneficial effects of this invention are as follows: 1. By using the swing mechanism, the angle of the rotating disk is changed cyclically during the crushing process, thereby adjusting the friction angle and friction force on the fragments during the crushing process. This prevents slippage caused by the special shape of the fragments during crushing, ensuring continuous crushing of the fragments. At the same time, it prevents the fragments from sliding in the crushing chamber for a long time and causing excessive friction on the moving jaw plate and the fixed jaw plate, thus ensuring the service life of the moving jaw plate and the fixed jaw plate.

[0016] 2. Through the set guiding and pushing mechanisms, when the crushed pieces are fed in by the external conveyor belt, the constantly swinging rotating blocks will gather the crushed pieces on both sides inward, so that the material is in the middle area of ​​the crushing chamber after entering the crushing chamber. This ensures that the force-bearing part of the moving jaw plate is in the middle when crushing, thereby ensuring the crushing efficiency and material throughput of the crusher. When the eccentric shaft drives the moving jaw plate to crush, the reaction force on the eccentric shaft is more balanced, thereby ensuring the service life of the eccentric shaft and the stability of the moving jaw plate during crushing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the crusher of the present invention; Figure 3 This is a schematic diagram of the internal structure of the crusher of the present invention from another perspective; Figure 4 This is a schematic cross-sectional view of the fixing frame of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle; Figure 6This is a schematic diagram of the structure of the drive disc after being cut apart, along with connecting rod 2 and the rotating frame of the present invention; Figure 7 This is a schematic diagram of the cooperation structure between the pushing mechanism and the fixed jaw plate of the present invention; Figure 8 This is a schematic diagram of the actuator structure of the present invention; Figure 9 This is a cross-sectional view of the driving mechanism of the present invention; Figure 10 This is a schematic diagram of the structure of the rotating shaft, push block, and push frame in another embodiment of the present invention.

[0018] In the diagram: 1. Crusher; 11. Eccentric shaft; 12. Moving jaw plate; 13. Fixed frame; 14. Fixed jaw plate; 15. Rotating frame; 151. Push column; 16. Rotating disk; 2. Swinging mechanism; 21. Spur gear one; 22. Drive shaft; 23. Spur gear two; 24. Driven shaft; 25. Connecting rod one; 26. Drive disk; 261. Connecting column; 27. Connecting rod two; 271. Slanted protrusion; 28. Cylinder; 3. Guide mechanism; 31. Fixed block; 32. Rotating block; 33. Isolation pad; 4. Pushing mechanism; 41. Housing; 42. Guide frame; 43. Rotating shaft; 431. Groove; 432. Push block; 44. Push frame; 441. Isolation plate; 45. Drive shaft; 451. Eccentric rod; 46. Lifting block; 47. Helical gear one; 48. Helical gear two. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0020] like Figures 1 to 10 As shown in the figure, an embodiment of the present invention provides a crushing device for treating construction solid waste, including a crusher 1, which is a jaw crusher, comprising an eccentric shaft 11, a movable jaw plate 12, a fixed frame 13, and a fixed jaw plate 14. The crushing device for treating construction solid waste provided in this embodiment of the present invention also includes: A rotating frame 15 is rotatably mounted on the side of the fixed frame 13, and a rotating disk 16 is rotatably mounted on the side of the fixed jaw plate 14. The rotating frame 15 and the rotating disk 16 are coaxially fixedly connected. Symmetrical push columns 151 are fixedly connected to the circumferential surface of the rotating frame 15. The crushing tooth groove of the rotating disk 16 that contacts the fragments is shallower than the crushing tooth groove on the fixed jaw plate 14. The oscillating mechanism 2 includes a drive shaft 22, a driven shaft 24, and a first connecting rod 25. The drive shaft 22 is rotatably mounted inside the crusher 1, and the driven shaft 24 is rotatably mounted inside the fixed frame 13. The drive shaft 22 and the driven shaft 24 are connected by the first connecting rod 25 to enable the driven shaft 24 to oscillate back and forth. A symmetrical drive disc 26 is fixedly sleeved on the driven shaft 24, and a symmetrical second connecting rod 27 is movably sleeved on the driven shaft 24. The second connecting rod 27 is located inside the fixed frame 13 and is limited to linear movement only along its top and bottom ends. A slanted protrusion 271 is fixedly provided on one side of the second connecting rod 27. When the drive disc 26 rotates, it pushes the second connecting rod 27 to move linearly through the slanted protrusion 271. Figure 6 As can be seen, when the drive disk 26 rotates, the connecting post 261 connected inside one side of the drive disk 26 will squeeze the oblique protrusion 271, causing the connecting rod 27 corresponding to the squeezed oblique protrusion 271 to move downward.

[0021] The guiding mechanism 3 includes a fixed block 31 fixedly connected to the side of the fixed frame 13 and a rotating block 32 hinged to both sides of the fixed block 31. After the rotating block 32 rotates, it pushes the concrete fragments towards the fixed block 31. Figure 4 and Figure 5 As can be seen, the hinge point of the rotating block 32 and the fixed block 31 is located at the adjacent top edge line of the two, and in the initial state, the adjacent surfaces of the rotating block 32 and the fixed block 31 are in contact, so that the rotating block 32 can only rotate upward.

[0022] The pushing mechanism 4 includes a housing 41 fixedly connected inside the crusher 1. A rotating shaft 43 is rotatably mounted inside the housing 41. A drive shaft 45 is fixedly sleeved at one end of the rotating shaft 43. A lifting block 46 with its top end abutting against the bottom surface of the adjacent rotating block 32 is slidably connected inside the housing 41. An eccentric rod 451 inside the drive shaft 45 abuts against the bottom surface of the lifting block 46 to drive the lifting block 46 to move linearly back and forth during rotation.

[0023] In this invention, the angle of the rotating disk 16 is changed cyclically during the crushing process by the swing mechanism 2, thereby adjusting the friction angle and friction force of the fragments during the crushing process. This avoids slippage caused by the special shape of the fragments during the crushing process, ensuring continuous crushing of the fragments. At the same time, it avoids excessive friction on the moving jaw plate 12 and the fixed jaw plate 14 due to the fragments sliding in the crushing chamber for a long time, thus ensuring the service life of the moving jaw plate 12 and the fixed jaw plate 14.

[0024] In this invention, through the guide mechanism 3 and the push mechanism 4, when the fragments are fed in by the external conveyor belt, the constantly swinging rotating block 32 will gather the fragments on both sides inward, so that the material is in the middle area of ​​the crushing chamber after entering the crushing chamber. This ensures that the force-bearing part of the moving jaw plate 12 is in the middle when crushing, thereby ensuring the crushing efficiency and material throughput of the crusher 1. When the eccentric shaft 11 drives the moving jaw plate 12 to crush, the reaction force on the eccentric shaft 11 is more balanced, thereby ensuring the service life of the eccentric shaft 11 and the stability of the moving jaw plate 12 during crushing.

[0025] In an embodiment of the present invention, a symmetrical spur gear 21 with its axis coinciding with the axis of the eccentric shaft 11 is fixedly sleeved on the eccentric shaft 11, and a spur gear 23 is fixedly sleeved on both ends of the drive shaft 22. The spur gear 21 meshes with the spur gear 23, and the number of teeth of the spur gear 21 is less than that of the spur gear 23.

[0026] like Figure 2 and Figure 3 As shown, spur gear 21 is mounted on the concentric part of eccentric shaft 11. When eccentric shaft 11 is driven to rotate by motor, it synchronously drives spur gear 21 to rotate. At this time, spur gear 21 drives spur gear 23 to rotate through meshing, which in turn drives drive shaft 22 to rotate. Through the speed reduction and torque increase effect of spur gear 23, connecting rod 27 obtains sufficient thrust to push rotating frame 15 to rotate. At this time, rotating frame 15 will rotate around its own axis, thereby driving rotating disk 16 to rotate. This ensures that in the event of slippage, rotating disk 16 will not be unable to rotate due to the weight of the fragments. It also ensures that in the event of slippage, the angle of the material can be changed by changing the angle of rotating disk 16, thereby continuing to crush the fragments and ensuring continuous operation of the equipment.

[0027] In an embodiment of the present invention, the guide mechanism 3 further includes an isolation pad 33, which is made of an elastic wear-resistant material. One end of the isolation pad 33 is fixed to the top surface of the fixed block 31 and the top surface of the rotating block 32, respectively, and the other end is fixed to the top surface of the fixed frame 13 and connected to the external conveyor belt.

[0028] The isolation pad 33 has high abrasion resistance and elasticity, and can be made of a single material (such as polyurethane rubber) or multiple materials stacked together (such as an abrasion-resistant material on the top layer and an elastic material on the bottom layer).

[0029] like Figure 2 and Figure 3As shown, the isolation pad 33 covers the top surface of the fixed block 31, the rotating block 32, and the fixed frame 13. When the rotating block 32 is lifted by the upward-moving lifting block 46, the rotating block 32 rotates around the hinge axis with the fixed block 31, thereby pushing the scattered fragments on both sides towards the middle part, and shaking off the fragments pressed on the plate-shaped and sheet-shaped fragments. This prevents the fragments from being unable to be pushed towards the middle part of the crushing chamber by the pushing mechanism 4 due to too many fragments pressed on top, ensuring that the plate-shaped and sheet-shaped fragments can enter the middle of the crushing chamber after being fed and be fully crushed.

[0030] In an embodiment of the present invention, both ends of the drive shaft 22 and the driven shaft 24 are fixedly connected to cylinders 28. One end of the connecting rod 25 is rotatably mounted on the cylinder 28 on the side of the drive shaft 22. The other end of the connecting rod 25 has a groove on its side and is movably sleeved on the cylinder 28 on the side of the driven shaft 24. Two symmetrical connecting posts 261 are fixedly connected inside the drive disk 26. The oblique side of the oblique protrusion 271 abuts against one of the connecting posts 261. The oblique protrusions 271 on the two connecting rods 27 are arranged in a mirror symmetrical manner. When the driven shaft 24 drives the drive disk 26 to reciprocate, the oblique protrusions 271 abut against one of the connecting posts 261. The inclined side of the protrusion 271 abuts against the connecting column 261, which presses against the inclined protrusion 271 to drive the corresponding connecting rod 27 to move linearly. As mentioned above, when the connecting column 261 presses against the inclined protrusion 271, the corresponding connecting rod 27 will move downward. At this time, one push column 151 on the circumferential side of the rotating frame 15 is pressed down, causing the rotating frame 15 to rotate. The other push column 151 is raised as the rotating frame 15 rotates, causing the other connecting rod 27 to slide upward. When the passive shaft 24 swings back, the upward sliding connecting rod 27 will be pressed downward, thereby driving the rotating frame 15 to rotate.

[0031] like Figures 1 to 6 As shown, as the drive shaft 22 rotates due to the meshing transmission of spur gear 21 and spur gear 23, the cylinder 28 on the side of the drive shaft 22 drives the connecting rod 25 to move. The connecting rod 25 drives the driven shaft 24 to reciprocate through the sliding groove on its side. The swing angle of the driven shaft 24 can be changed by adjusting the position of the cylinder 28 located in the sliding groove.

[0032] When the passive shaft 24 rotates in one direction (e.g., clockwise), the connecting post 261 on the drive disc 26 will push the oblique protrusion 271 through contact with it, thereby causing the corresponding connecting rod 27 to move downward (in a direction parallel to the side of the fixed frame 13). At this time, the downward-moving connecting rod 27 will push the push post 151 connected to it, thereby driving the rotating frame 15 to rotate; the push post 151 on the other side of the rotating frame 15 will simultaneously push the other connecting rod 27 connected to it to move upward. When the cylinder 28 on the side of the passive shaft 24 is driven to the upper limit position by the connecting rod 1 25, the active shaft 22 continues to rotate, driving the cylinder 28 back to the lower limit position via the connecting rod 1 25. At this time, the connecting rod 27, which moves upward in a straight line, will continue to move downward after returning to the initial position, thereby driving the rotating frame 15 to rotate in another direction. Thus, during the rotation of the active shaft 22, the rotating frame 15 and the rotating disk 16 will swing back and forth. At this time, when the externally fed fragments are stuck between the moving jaw plate 12 and the fixed jaw plate 14, and cannot be crushed due to slippage and bridging, the constantly swinging rotating disk 16 will change the way the moving jaw plate 12 squeezes the fragments and the fixed jaw plate 14. The friction angle between 4 (such as when a trapezoidal piece with a larger top and smaller bottom falls into the crushing chamber, the moving jaw plate 12 squeezes the piece, and the piece tends to slide upward under the guidance of the crushing tooth groove as the moving jaw plate 12 approaches, and slides downward after the moving jaw plate 12 moves away, causing the moving jaw plate 12 to be unable to effectively crush it, and also causing part of the plate-shaped piece to fall on the piece and form a bridging state, resulting in the inability to crush these pieces and causing material blockage), so by constantly changing the rotation angle of the rotating disk 16 during crushing, it is ensured that the crusher 1 can always effectively crush the pieces located in the crushing chamber, avoiding the impact on the crushing process due to slippage and bridging.

[0033] In embodiments of the present invention, such as Figure 9 As shown, a guide frame 42 is fixedly connected to the top surface of the outer shell 41. The top surface of the guide frame 42 is inclined. A push frame 44 is hinged inside the outer shell 41. The push frame 44 is fan-shaped. The hinge axis of the push frame 44 is located inside the outer shell 41. An isolation plate 441 is fixedly connected to the top surface of the push frame 44. The isolation plate 441 is used to prevent small fragments from falling into the outer shell 41 and to jam the push frame 44.

[0034] like Figure 2 , Figures 7 to 9As shown, one end of the outer casing 41 is sleeved on the drive shaft 22 and is higher than the highest point of the moving jaw plate 12. The top surface of the guide frame 42 is set as an inclined surface, which allows concrete blocks falling above the outer casing 41 to slide down along the guide frame 42. This allows the building debris transported by the external conveyor belt to fall into the middle of the crushing chamber, ensuring that the moving jaw plate 12 and the fixed jaw plate 14 use the middle part to squeeze and crush the building debris. This ensures that the moving jaw plate 12 will not experience uneven wear during operation, thereby ensuring the service life of the eccentric shaft 11.

[0035] In an embodiment of the present invention, a plurality of equally spaced grooves 431 are provided on the rotating shaft 43. The grooves 431 are arc-shaped and connected to the outer circumferential surface of the rotating shaft 43. A plurality of synchronously moving push blocks 432 are slidably connected inside the outer casing 41. The bottom end of the push block 432 abuts against the groove 431, and the top ends of the plurality of push blocks 432 abut against the bottom surface of the push frame 44.

[0036] like Figures 7 to 9 As shown, in this embodiment, the pusher 44 is a single unit. When there are many plate-shaped and sheet-shaped fragments in the solid waste, these fragments will slide to both sides of the conveyor belt during the transportation and feeding process, causing them to easily fall to the sides of the crushing chamber. At this time, under the push of the guide frame 42 and the reciprocating pusher 44, the plate-shaped and sheet-shaped fragments that have entered the sides are pushed to the middle position of the crushing chamber, thereby ensuring the uniformity of the force on the moving jaw plate 12 and guiding the plate-shaped and sheet-shaped fragments to the middle position of the crushing chamber, so as to achieve the best crushing effect on the above-mentioned types of fragments and thus ensure the uniformity of the crushed material.

[0037] As mentioned above, the pusher 44 is hinged inside the housing 41. When the pusher 432 slides upward, the pusher 44 is lifted from the bottom and rotates around its hinge axis. When the pusher 432 slides downward (the bottom of the pusher 432 enters the groove 431), the pusher 44 rotates back to its original position (by the pressure of external gravel, the setting of torsion springs, the weight of the pusher 44, etc.). Under the continuous rotation of the rotating shaft 43, the pusher 432 performs reciprocating linear motion, thereby causing the pusher 44 to swing back and forth.

[0038] In another embodiment of the present invention, a plurality of grooves 431 facing different directions are provided on the rotating shaft 43. The grooves 431 are arc-shaped and connected to the outer circumferential surface of the rotating shaft 43. A plurality of independently movable push blocks 432 are slidably connected inside the outer casing 41. The bottom end of the push block 432 abuts in the groove 431. The push frame 44 is composed of a plurality of sector blocks that rotate around a common axis. The top end of the push block 432 abuts in the bottom surface of the adjacent sector block. A torsion spring is provided at the pivot of the sector block to drive it to rotate into the outer casing 41.

[0039] like Figure 10As shown, in this embodiment, the pusher 44 is composed of multiple fan-shaped blocks, and the adjacent grooves 431 on the rotating shaft 43 have different orientations. This results in different undulation angles of the different fan-shaped blocks after the rotating shaft 43 rotates, thereby striking different parts of the concrete fragments on the guide frame 42. This causes the building fragments on the guide frame 42 to fall into the crushing chamber inside the crusher 1. At the same time, with the striking of the fan-shaped blocks and the collision of the fragments with other fragments, the mortar on the input brick fragments is loosened and knocked off, thereby improving the separation effect of bricks and mortar, and facilitating the separation and recycling of brick solid waste and mortar solid waste.

[0040] In an embodiment of the present invention, a second helical gear 48 is fixedly sleeved on the drive shaft 22, and a first helical gear 47 is coaxially sleeved on the drive shaft 45, with the first helical gear 47 meshing with the second helical gear 48.

[0041] Working principle: When using this equipment, simply turn on the motor of the crusher 1. At this time, the swing mechanism 2 and the pushing mechanism 4 will start working together. The operation of the pushing mechanism 4 will also drive the rotating block 32 of the guide mechanism 3 to rotate. Thus, during the feeding process, the broken pieces on both sides of the conveyor belt are gathered towards the middle of the conveyor belt. At this time, the material fed into the crushing chamber will be in the middle area of ​​the crushing chamber, so that the moving jaw plate 12 can be crushed in the middle, ensuring that the moving jaw plate 12 and the eccentric shaft 11 are subjected to balanced forces.

[0042] When the eccentric shaft 11 starts to rotate, the drive shaft 22 starts to rotate through the drive of the spur gear 21; through the transmission of the connecting rod 25, the driven shaft 24 is driven to reciprocate. When the driven shaft 24 swings in one direction, the drive disk 26 fixed on the driven shaft 24 will drive one of the connecting rods 27 to move downward, thereby driving the rotating frame 15 to drive the rotating disk 16 to rotate. At this time, the crushing indentation angle on the surface of the rotating disk 16 changes, thereby changing the contact position and contact angle with the fragments. Since the rotating disk 16 is rotating continuously, the friction angle of the fragments is constantly changing when the moving jaw plate 12 is crushing, effectively reducing the problem of "easy slippage" of concrete fragments during crushing, improving the continuity of crushing, and avoiding the concentration of crushing load in the middle of the fixed jaw plate 14 due to the fixed friction angle.

[0043] During the rotation of the drive shaft 22, the helical gear 48 mounted on it drives the rotating shaft 43 to rotate by meshing with the helical gear 47. At this time, the rotation of the rotating shaft 43 drives the push block 432 to move linearly back and forth through the groove 431 on it. The push block 432 pushes the push frame 44 to rotate, so that the push frame 44 pushes the material entering from both sides of the crushing chamber towards the middle area of ​​the crushing chamber. By cooperating with the rotating block 32 in the guide mechanism 3, it pushes the plate-shaped fragments that slide to both sides of the conveyor belt when being transported by the conveyor belt towards the middle of the crushing chamber, so as to avoid excessive force on one side of the moving jaw plate 12 during crushing, which would cause additional wear to the related structures.

[0044] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A crushing device for treating construction solid waste, comprising a crusher (1), which includes an eccentric shaft (11), a movable jaw plate (12), a fixed frame (13), and a fixed jaw plate (14), characterized in that, Also includes: A rotating frame (15) is rotatably mounted on the side of the fixed frame (13), and a rotating disk (16) is rotatably mounted on the side of the fixed jaw plate (14). The rotating frame (15) and the rotating disk (16) are coaxially fixedly connected, and symmetrical push columns (151) are fixedly connected to the circumferential surface of the rotating frame (15). The swing mechanism (2) includes a drive shaft (22), a driven shaft (24) and a connecting rod (25). The drive shaft (22) is rotatably installed in the crusher (1), and the driven shaft (24) is rotatably installed in the fixed frame (13). The drive shaft (22) and the driven shaft (24) are connected by the connecting rod (25) to make the driven shaft (24) swing back and forth. A symmetrical drive disc (26) is fixedly sleeved on the driven shaft (24), and a symmetrical connecting rod (27) is movably sleeved on the driven shaft (24). A slanted protrusion (271) is fixedly provided on one side of the connecting rod (27). When the drive disc (26) rotates, it pushes the connecting rod (27) to move linearly through the slanted protrusion (271). The guiding mechanism (3) includes a fixed block (31) fixedly connected to the side of the fixed frame (13) and a rotating block (32) hinged to both sides of the fixed block (31). After the rotating block (32) rotates, it pushes the concrete fragments toward the fixed block (31). The pushing mechanism (4) includes a housing (41) fixedly connected inside the crusher (1), a rotating shaft (43) is rotatably installed inside the housing (41), a drive shaft (45) is fixedly sleeved at one end of the rotating shaft (43), a lifting block (46) with its top end abutting against the bottom surface of the adjacent rotating block (32) is slidably connected inside the housing (41), and an eccentric rod (451) inside the drive shaft (45) abuts against the bottom surface of the lifting block (46) to drive the lifting block (46) to move linearly back and forth when rotating.

2. The pulverizing device for treating construction solid waste according to claim 1, characterized in that: A spur gear 1 (21) is fixedly sleeved on the eccentric shaft (11) and its axis coincides with the axis of the eccentric shaft (11). A spur gear 2 (23) is fixedly sleeved on both ends of the drive shaft (22). The spur gear 1 (21) meshes with the spur gear 2 (23). The number of teeth of the spur gear 1 (21) is less than that of the spur gear 2 (23).

3. The pulverizing device for treating construction solid waste according to claim 1, characterized in that: The guiding mechanism (3) also includes an isolation pad (33), which is made of an elastic wear-resistant material. One end of the isolation pad (33) is fixed to the top surface of the fixed block (31) and the top surface of the rotating block (32), and the other end is fixed to the top surface of the fixed frame (13) and connected to the external conveyor belt.

4. The pulverizing device for treating construction solid waste according to claim 1, characterized in that: Both ends of the active shaft (22) and the passive shaft (24) are fixedly connected to cylinders (28). One end of the connecting rod (25) is rotatably mounted on the cylinder (28) on the side of the active shaft (22). The side of the connecting rod (25) is provided with a sliding groove and is movably sleeved on the cylinder (28) on the side of the passive shaft (24).

5. A crushing device for treating construction solid waste according to claim 1, characterized in that: The drive disc (26) has two symmetrical connecting posts (261) fixedly connected inside. The oblique side of the oblique protrusion (271) abuts against one of the connecting posts (261). The oblique protrusions (271) on the two connecting rods (27) are arranged in a mirror symmetrical manner.

6. A crushing device for treating construction solid waste according to claim 5, characterized in that: When the passive shaft (24) drives the drive disk (26) to reciprocate, the connecting post (261) that abuts against the oblique side of the oblique protrusion (271) squeezes the oblique protrusion (271) to drive the corresponding connecting rod (27) to move linearly.

7. A crushing device for treating construction solid waste according to claim 1, characterized in that: A guide frame (42) is fixedly connected to the top surface of the outer shell (41). The top surface of the guide frame (42) is inclined. A push frame (44) is hinged inside the outer shell (41). The push frame (44) is fan-shaped. The hinge axis of the push frame (44) is located inside the outer shell (41). An isolation plate (441) is fixedly connected to the top surface of the push frame (44).

8. A crushing device for treating construction solid waste according to claim 7, characterized in that: The rotating shaft (43) has multiple equally spaced grooves (431), which are arc-shaped and connected to the outer circumferential surface of the rotating shaft (43). Multiple synchronously moving push blocks (432) are slidably connected inside the outer shell (41). The bottom end of the push block (432) abuts in the groove (431), and the top ends of the multiple push blocks (432) abut in the bottom surface of the push frame (44).

9. A crushing device for treating construction solid waste according to claim 7, characterized in that: The rotating shaft (43) has multiple grooves (431) facing different directions. The grooves (431) are arc-shaped and connected to the outer circumference of the rotating shaft (43). Multiple independently movable push blocks (432) are slidably connected inside the outer shell (41). The bottom end of the push block (432) abuts in the groove (431). The push frame (44) is composed of multiple sector blocks that rotate around a common axis. The top end of the push block (432) abuts in the bottom surface of the adjacent sector block. A torsion spring is provided at the pivot of the sector block to drive it to rotate into the outer shell (41).

10. A crushing device for treating construction solid waste according to claim 1, characterized in that: A helical gear two (48) is fixedly sleeved on the drive shaft (22), and a helical gear one (47) is coaxially sleeved on the drive shaft (45). The helical gear one (47) meshes with the helical gear two (48).

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