A concrete crushing device

Abstract

The present invention relates to the field of construction waste recycling, and discloses a concrete crushing device, including a support frame, a rotating crushing frame, a rotating screening frame, an internal gear ring, a transmission gear, a crushing gear, a hollow rotating shaft, a crushing plate, a recycling frame, etc.; the supporting frame is rotatably connected with a rotating crushing frame, and an external power drives the rotating crushing frame to rotate. A rotating screening frame is fixedly connected to the rotating crushing frame, and the rotating screening frame rotates with the rotating crushing frame and screens the crushed concrete blocks. The rotating screening frame is fixedly connected to the internal gear ring. The device performs double crushing on the concrete blocks, and the rotating crushing frame and the crushing plate rotate in opposite directions, so that the crushing plate is fully in contact with the concrete blocks in the rotating crushing frame, thereby ensuring the crushing effect. During the crushing process, a dust suction mechanism absorbs most of the smoke generated by the crushing to reduce pollution.

Description

Technical Field

[0001] The invention relates to the field of construction waste recycling, and in particular to a concrete crushing device. Background Art

[0002] Crushing and reprocessing discarded concrete can avoid the waste of construction resources and reduce the pollution of construction waste to the environment. When using existing concrete crushers for construction projects, workers need to put concrete blocks on a conveyor belt or directly put them into the crusher, which increases the labor intensity of the workers. In addition, a large amount of dust will be generated during the crushing process. If it is not treated and directly discharged into the air, it will cause environmental pollution. Summary of the invention

[0003] The present invention provides a concrete crushing device which can automatically add materials and has a dust suction function to solve the above problems.

[0004] The technical solution of the present invention is: a concrete crushing device, comprising a support frame, a rotary crushing frame, a rotary screening frame, an internal gear ring, a transmission gear, a crushing gear, a hollow rotating shaft, a crushing plate, a recovery frame, an impact crushing mechanism and a dust suction mechanism, the support frame is rotatably connected with a rotary crushing frame, the rotary crushing frame is fixedly connected with a rotary screening frame, the rotary screening frame is fixedly connected with an internal gear ring, the internal gear ring is rotatably connected to the support frame, the support frame is fixedly connected with a recovery frame, the recovery frame is rotatably connected with a transmission gear, the transmission gear is meshed with the internal gear ring, the recovery frame is rotatably connected with a hollow rotating shaft, the hollow rotating shaft passes through the recovery frame and is connected to the outside, the crushing gear is fixedly connected to the hollow rotating shaft, the crushing gear is meshed with the transmission gear, the hollow rotating shaft is fixedly connected with a crushing plate, the impact crushing mechanism is installed on the support frame, the impact crushing mechanism performs preliminary crushing of concrete, the dust suction mechanism is installed in the crushing plate, and the dust suction mechanism absorbs most of the concrete dust generated during the crushing process.

[0005] Preferably, the impact crushing mechanism includes a feed frame, a fixed ring, an impact crushing frame and a rotating knocking frame. The supporting frame is fixedly connected to the fixed ring, the feed frame and the impact crushing frame are fixedly connected to the fixed ring, the impact crushing frame is located below the feed frame, and the rotating knocking frame is fixedly connected to the hollow rotating shaft, and the rotating knocking frame rotates with the hollow rotating shaft.

[0006] Preferably, the dust suction mechanism includes an air inlet, a one-way air valve, a sliding knocking block, a reset spring and a piston. An air inlet is provided on the hollow rotating shaft, a circular through hole is provided inside the crushing plate, the air inlet is connected to the circular through hole of the crushing plate, a one-way air valve is installed on the crushing plate, a sliding knocking block is slidably connected inside the crushing plate, the sliding knocking block and the crushing plate are connected by a reset spring, a piston is slidably connected inside the crushing plate, and the piston and the sliding knocking block are connected by an arc rod.

[0007] Preferably, it also includes a fixed plate, a scraper frame, a sliding scraper, a scraper spring, a flip gear, a magnet and an arc-shaped flip rack. The fixed plate is fixedly connected to the support frame, the scraper frame is fixedly connected to the lower end of the fixed plate, the sliding scraper is slidably connected to the scraper frame, a scraper spring is connected between the sliding scraper and the scraper frame, a magnet is rotatably connected to the rotating crushing frame, a flip gear is fixedly connected to the rotating shaft of the magnet, and an arc-shaped flip rack is fixedly connected to the fixed ring. During the rotation of the rotating crushing frame, the flip gear engages with the arc-shaped flip rack.

[0008] Preferably, it also includes a sliding bottom plate and a supporting spring. The sliding bottom plate is slidably connected in the recovery frame. The large piece of concrete that slides into the recovery frame will fall on the sliding bottom plate. The supporting spring is connected between the sliding bottom plate and the recovery frame.

[0009] Preferably, it also includes an arc-shaped stirring bar, which is fixedly connected to the inner wall of the rotating crushing frame. The arc-shaped stirring bar rotates with the rotating crushing frame, and during the rotation of the arc-shaped stirring bar, the concrete block is pushed to move in the direction of the rotating screening frame.

[0010] Preferably, it also includes an automatic feeding mechanism, which includes a feeding rack, a feeding shovel, a strong magnetic plate, a feeding gear, a feeding rotating plate, a connecting gear, a feeding gear, a feeding tooth plate and a side branch plate. A feeding rotating plate is slidably connected in a fixed ring, and a feeding tooth plate is rotatably connected outside the impact crushing frame. A feeding shovel is fixedly connected between the feeding rotating plate and the feeding tooth plate. A strong magnetic plate is rotatably connected to the feeding shovel, and the strong magnetic plate is coaxially fixed with the feeding gear. The strong magnetic plate and the feeding shovel are connected by magnetic force and form a frame. The rotating shaft of the rotating percussion frame passes through the impact crushing frame and is fixedly connected to the connecting gear. A side branch plate is provided on the outside of the impact crushing frame, and the side branch plate is located on the right side of the impact crushing frame. The feeding gear is rotatably connected to the side branch plate, and the feeding gear is meshed with the connecting gear. The feeding tooth plate is meshed with the feeding gear. A feeding rack is fixedly connected to the top of the feed frame. When the feeding shovel moves to the top of the feed frame, the feeding gear is meshed with the feeding rack.

[0011] Preferably, it also includes a material storage plate, a sliding stopper and a material stopper spring. The material storage plate is fixedly connected to the side support plate, and the concrete blocks to be crushed are placed on the material storage plate. The material storage plate is slidably connected to the sliding stopper through a guide rod, and a material stopper spring is connected between the sliding stopper and the material storage plate.

[0012] Preferably, it also includes a fixed protrusion, a sliding plate and a connecting rod. The fixed protrusion is fixedly connected to the feeding tooth plate, the sliding plate is slidably connected in the side support plate, and the sliding plate and the sliding block are connected by a connecting rod.

[0013] The beneficial effects of the present invention are as follows: 1. The device performs double crushing on concrete blocks. The rotating crushing frame and the crushing plate rotate in opposite directions, so that the crushing plate is in full contact with the concrete blocks in the rotating crushing frame, thereby ensuring the crushing effect. During the crushing process, the dust suction mechanism absorbs most of the smoke and dust generated by the crushing, thereby reducing pollution.

[0014] 2. The iron objects such as iron nails and iron wires remaining in the concrete block will be attracted by the magnet. During the rotation of the rotating crushing frame, the flip gear cooperates with the arc-shaped flip rack to make the magnet flip automatically. When the magnet contacts the scraper plate, the sliding scraper will scrape off the iron objects attracted by the magnet.

[0015] 3. During the crushing process, the hollow shaft drives the feeding tooth plate to rotate by rotating the knocking frame, connecting gear and feeding gear, and then drives the feeding shovel to move. During the movement of the feeding shovel, the concrete blocks on the storage plate are automatically scooped up and put into the feeding frame, realizing the function of automatic feeding.

[0016] 4. When the feeding shovel scoops up concrete blocks, the feeding shovel cooperates with the sliding block to ensure that the feeding shovel can scoop up the concrete blocks. During the rising process of the feeding shovel, the feeding tooth plate pushes the sliding plate to rise through the fixed protrusion, and the sliding plate pulls the two sliding blocks closer to each other through the connecting rod to gather the concrete blocks on the storage plate and move them to the middle position, ensuring that the feeding shovel can contact the concrete blocks and scoop them up. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a structural schematic diagram of the sliding scraper of the present invention.

[0019] Figure 3 It is a schematic diagram of the structure when the magnet of the present invention rotates to the sliding scraper.

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the rotary crushing frame of the present invention.

[0021] Figure 5 It is a schematic diagram of the cross-sectional structure of the impact crushing frame of the present invention.

[0022] Figure 6 It is a schematic diagram of the cross-sectional structure of the crushing plate of the present invention.

[0023] Figure 7 It is a schematic diagram of the cross-sectional structure of the recycling frame of the present invention.

[0024] Figure 8 It is a schematic structural diagram of the fixing ring of the present invention.

[0025] Fig. 9 It is a structural schematic diagram of the side support plate of the present invention.

[0026] Fig.10 It is a structural schematic diagram of the feeding tooth plate of the present invention.

[0027] Fig.11It is a schematic diagram of the structure of the feed rack of the present invention.

[0028] Fig.12 It is a schematic structural diagram of the charging shovel of the present invention.

[0029] Parts names and serial numbers in the figure: 1. Support frame, 101. Fixed plate, 102. Scraping frame, 103. Sliding scraper, 104. Scraping spring, 2. Rotating crushing frame, 2001. Flipping gear, 2002. Magnet, 2003. Arc stirring bar, 201. Rotating screening frame, 2011. Internal gear ring, 202. Transmission gear, 203. Crushing gear, 204. Hollow shaft, 2041. Air inlet, 205. Crushing plate, 2051. One-way air valve, 2052. Sliding knocking block, 2053. Reset spring, 2054. Piston, 3. Recovery frame , 301, sliding bottom plate, 302, supporting spring, 4, feeding frame, 4001, fixing ring, 4002, feeding rack, 4003, arc-shaped flip rack, 401, impact crushing frame, 402, rotating knocking frame, 5, feeding shovel, 5001, strong magnetic plate, 5002, feeding gear, 501, feeding turn plate, 502, connecting gear, 503, feeding gear, 504, feeding gear plate, 5041, fixing protrusion, 6, storage plate, 601, side support plate, 602, sliding stopper, 603, stopper spring, 604, sliding plate, 605, connecting rod. DETAILED DESCRIPTION

[0030] The present invention will now be described more fully below with reference to the accompanying drawings, in which currently preferred embodiments of the present invention are shown. However, the present invention may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness, and these embodiments fully convey the scope of the present invention to the skilled person.

[0031] Embodiment 1: A concrete crushing device, such as Figure 1-Figure 12As shown, it includes a support frame 1, a rotating crushing frame 2, a rotating screening frame 201, an inner gear ring 2011, a transmission gear 202, a crushing gear 203, a hollow rotating shaft 204, a crushing plate 205, a recycling frame 3, an impact crushing mechanism and a dust suction mechanism. The supporting frame 1 is rotatably connected with the rotating crushing frame 2, and the external power drives the rotating crushing frame 2 to rotate. The rotating screening frame 201 is fixedly connected to the rotating crushing frame 2, and the rotating screening frame 201 rotates with the rotating crushing frame 2 and screens the crushed concrete blocks. The rotating screening frame 201 is fixedly connected with the inner gear ring 2011, and the inner gear ring 2011 is rotatably connected to the supporting frame 1. The supporting frame 1 is fixedly connected with the recycling frame 3, and the concrete blocks that cannot pass through the rotating screening frame 201 will slide into the recycling frame 3. The recycling frame 3 is rotatably connected with the transmission gear 202, and the transmission gear 202 is meshed with the inner gear ring 2011. The recycling frame 3 is rotatably connected with the hollow rotating shaft 204, and the hollow rotating shaft 204 passes through The recycling frame 3 is connected to the outside, a crushing gear 203 is fixedly connected to the hollow shaft 204, the crushing gear 203 is meshed with the transmission gear 202, the inner gear ring 2011 drives the crushing gear 203 and the hollow shaft 204 to rotate through the transmission gear 202, a crushing plate 205 is fixedly connected to the hollow shaft 204, the crushing plate 205 rotates with the hollow shaft 204, the rotation direction of the crushing plate 205 is opposite to the rotation direction of the rotating crushing frame 2, the impact crushing mechanism is installed on the support frame 1, the impact crushing mechanism performs preliminary crushing of the concrete, the dust suction mechanism is installed in the crushing plate 205, the dust suction mechanism absorbs most of the concrete dust generated during the crushing process; it also includes an arc stirring bar 2003, an arc stirring bar 2003 is fixedly connected to the inner wall of the rotating crushing frame 2, the arc stirring bar 2003 rotates with the rotating crushing frame 2, and the arc stirring bar 2003 pushes the concrete block to move in the direction of the rotating screening frame 201 during the rotation.

[0032] When the device is used, the rotating crushing frame 2 is driven to rotate by an external power, and the rotating crushing frame 2 drives the inner gear ring 2011 to rotate by rotating the screening frame 201, and the inner gear ring 2011 drives the crushing gear 203 to rotate through the transmission gear 202, and the crushing gear 203 drives the impact crushing mechanism to operate through the hollow rotating shaft 204, and the concrete to be crushed is put into the impact crushing mechanism, and the impact crushing mechanism performs preliminary crushing treatment on the concrete blocks, and the concrete blocks processed by the impact crushing mechanism slide into the rotating crushing frame 2, and when the rotating crushing frame 2 rotates, the hollow rotating shaft 204 and the crushing plate 205 rotate simultaneously with it, and the rotating crushing frame 2 and the crushing plate 205 have different rotation directions, and the concrete blocks entering the rotating crushing frame 2 rotate accordingly, and during the rotation of the concrete blocks in the rotating crushing frame 2, they will contact with the crushing plate 205 Contact, since the diameter of the inner gear ring 2011 is much larger than the diameters of the transmission gear 202 and the crushing gear 203, the inner gear ring 2011 drives the crushing gear 203 to rotate at a high speed through the transmission gear 202, and the rotation speed of the hollow shaft 204 and the crushing plate 205 is greater than the rotation speed of the rotating crushing frame 2. During the rotation of the crushing plate 205, the concrete blocks in the rotating crushing frame 2 are broken, and the concrete blocks are crushed for the second time. Dust is generated in the process of crushing the concrete blocks, and the dust suction mechanism removes most of the dust. During the rotation of the rotating crushing frame 2, the arc-shaped stirring bar 2003 is used to push the concrete blocks to move toward the rotating screening frame 201, and the rotating screening frame 201 screens the crushed concrete blocks. The concrete blocks that cannot pass through the rotating screening frame 201 will gradually slide into the recovery frame 3 as the equipment runs.

[0033] Embodiment 2: Based on embodiment 1, Figure 1 , Figure 4 and Figure 5 As shown, the impact crushing mechanism includes a feed frame 4, a fixed ring 4001, an impact crushing frame 401 and a rotating knocking frame 402. The fixed ring 4001 is fixedly connected to the support frame 1, and the feed frame 4 and the impact crushing frame 401 are fixedly connected to the fixed ring 4001. The impact crushing frame 401 is located below the feed frame 4. The concrete block falls into the impact crushing frame 401 through the feed frame 4. The rotating knocking frame 402 is fixedly connected to the hollow rotating shaft 204. The rotating knocking frame 402 rotates with the hollow rotating shaft 204. When the concrete block falls into the impact crushing frame 401, the rotating knocking frame 402 contacts the concrete block and pushes it to contact the inner wall of the impact crushing frame 401 to initially crush the concrete block.

[0034] The concrete block slides into the impact crushing frame 401 through the feeding frame 4, and the rotation of the hollow shaft 204 drives the rotating percussion frame 402 to rotate. When the rotating percussion frame 402 rotates, the concrete is pushed toward the inner wall of the impact crushing frame 401, causing the concrete block to collide with the inner wall of the impact crushing frame 401. Since the rotation speed of the hollow shaft 204 and the rotating percussion frame 402 is fast, the speed of the concrete block will also be very fast, causing the concrete block to collide with the inner wall of the impact crushing frame 401 to be initially crushed. The outer surface of the rotating percussion frame 402 is an inclined surface inclined to the rotating crushing frame 2. During the crushing process, the concrete block will gradually move toward the rotating crushing frame 2.

[0035] like Figure 5 and Figure 6 As shown, the dust collection mechanism includes an air inlet 2041, a one-way air valve 2051, a sliding knocking block 2052, a return spring 2053 and a piston 2054. The hollow shaft 204 is provided with an air inlet 2041, and a circular through hole is provided inside the crushing plate 205. The air inlet 2041 is connected to the circular through hole of the crushing plate 205. The crushing plate 205 is provided with a one-way air valve 2051. External air and dust therein pass through the one-way air valve 2051. 51 enters the crushing plate 205, and a sliding knocking block 2052 is slidably connected in the crushing plate 205. The sliding knocking block 2052 and the crushing plate 205 are connected through a return spring 2053. One end of the return spring 2053 is fixed to the sliding knocking block 2052, and the other end is fixed to the crushing plate 205. A piston 2054 is slidably connected in the crushing plate 205, and the piston 2054 is connected to the sliding knocking block 2052 through an arc rod.

[0036] When the crushing plate 205 rotates, the sliding knocking block 2052 will collide with the concrete block. At this time, the sliding knocking block 2052 is subjected to the reaction force of the concrete block and slides into the crushing plate 205 and compresses the return spring 2053. When the sliding knocking block 2052 slides into the crushing plate 205, it pushes the piston 2054 to slide. When the piston 2054 slides, the air in the rotating crushing frame 2 is sucked into the cavity in the crushing plate 205 through the one-way air valve 2051. Since most of the dust is generated when the concrete is crushed, Only when the sliding knocking block 2052 collides with the concrete, the piston 2054 will extract the air in the rotating crushing cylinder through the one-way air valve 2051. Therefore, most of the dust in the air in the rotating crushing frame 2 will also enter the crushing plate 205. When the reset spring 2053 pushes the sliding knocking block 2052 to slide and reset along the crushing plate 205, the piston 2054 will reset accordingly. At this time, the piston 2054 pushes the air in the crushing plate 205 into the hollow rotating shaft 204 through the air inlet 2041 to achieve the dust suction effect.

[0037] Embodiment 3: Based on embodiment 2, Figure 1-Figure 4As shown, it also includes a fixed plate 101, a scraper frame 102, a sliding scraper 103, a scraper spring 104, a flip gear 2001, a magnet 2002 and an arc-shaped flip rack 4003. The fixed plate 101 is fixedly connected to the support frame 1, and the scraper frame 102 is fixedly connected to the lower end of the fixed plate 101. The sliding scraper 103 is slidably connected to the scraper frame 102, and a scraper spring 104 is connected between the sliding scraper 103 and the scraper frame 102. One end of the scraper spring 104 is fixedly connected to the sliding scraper 103, and the other end is fixedly connected to the scraper frame 102. The magnet 2002 is rotatably connected to the rotating crushing frame 2, and the flip gear 2001 is fixedly connected to the rotating shaft of the magnet 2002. The arc-shaped flip rack 4003 is fixedly connected to the fixed ring 4001. During the rotation of the rotating crushing frame 2, the flip gear 2001 can engage with the arc-shaped flip rack 4003.

[0038] When the rotating crushing frame 2 rotates, the magnet 2002 rotates accordingly. After the concrete block is broken, the iron objects contained therein will be released. The broken concrete and iron objects in the rotating crushing frame 2 rotate with the rotating crushing frame 2, and some of the iron objects will be attracted by the magnet 2002. When the magnet 2002 moves to the upper part, the flip gear 2001 meshes with the arc-shaped flip rack 4003. At this time, as the rotating crushing frame 2 continues to rotate, the arc-shaped flip rack 4003 drives the magnet 2002 to rotate through the flip gear 2001, and the side of the magnet 2002 with the iron objects attracted faces outward. The magnet 2002 is turned out, and the other side is turned into the rotating crushing frame 2. Since the magnet 2002 is located in the upper part of the rotating crushing frame 2 at this time, it is difficult for the concrete block to fall out from the gap between the magnet 2002 and the rotating crushing frame 2. When the flipping gear 2001 is out of contact with the arc flipping rack 4003, the magnet 2002 just rotates 180 degrees, and the magnet 2002 continues to rotate with the rotating crushing frame 2 and will contact the sliding scraper 103. Under the action of the scraping spring 104, the sliding scraper 103 is always close to the surface of the magnet 2002, and the sliding scraper 103 scrapes off the iron objects on the surface of the magnet 2002.

[0039] like Figure 7 As shown, it also includes a sliding bottom plate 301 and a supporting spring 302. The sliding bottom plate 301 is slidably connected in the recovery frame 3. Large pieces of concrete that slide into the recovery frame 3 will fall on the sliding bottom plate 301. A supporting spring 302 is connected between the sliding bottom plate 301 and the recovery frame 3. One end of the supporting spring 302 is fixed to the recovery frame 3, and the other end is fixed to the sliding bottom plate 301.

[0040] When the concrete blocks on the sliding bottom plate 301 are gradually increased, the concrete blocks and the sliding bottom plate 301 slide along the recovery frame 3 together and compress the supporting spring 302. A collection vehicle is placed at the exit of the recovery frame 3. When the gap between the sliding bottom plate 301 and the recovery frame 3 is sufficient for the concrete blocks to pass through, some of the concrete blocks will fall out of the recovery frame 3. During the process of the concrete blocks falling out, the sliding bottom plate 301 is pushed by the supporting spring 302 to gradually slide back to its original position along the recovery frame 3. When a part of the concrete blocks in the recovery frame 3 falls out, the distance between the sliding bottom plate 301 and the recovery frame 3 cannot allow the concrete blocks to pass through, and the concrete blocks will be blocked again. As the crushing work continues, a part of the concrete blocks will fall out of the recovery frame 3 at regular intervals. After the crushing is completed, the sliding bottom plate 301 is manually pulled open to make all the concrete blocks in the recovery frame 3 fall out.

[0041] like Figure 8-Figure 12 It also includes an automatic feeding mechanism, which includes a feeding rack 4002, a feeding shovel 5, a strong magnetic plate 5001, a feeding gear 5002, a feeding rotating plate 501, a connecting gear 502, a feeding gear 503, a feeding tooth plate 504 and a side support plate 601. The feeding rotating plate 501 is slidably connected inside the fixed ring 4001, and the feeding tooth plate 504 is rotatably connected outside the impact crushing frame 401. The feeding rotating plate 501 and the feeding tooth plate 504 are fixedly connected together. The feeding shovel 5 is used to scoop up the concrete block from the ground and drive it to rise to the feeding frame 4. The feeding shovel 5 is rotatably connected with a strong magnetic plate 5001, and the strong magnetic plate 5001 is coaxially fixedly connected with the feeding gear 5002. The two side plates of the feeding shovel 5 are made of iron. The strong magnetic plate 5001 and the feeding shovel 5 are connected by magnetic force. The two ends of the feeding frame 402 are connected to form a frame, the rotating shaft of the rotating percussion frame 402 passes through the impact crushing frame 401 and is fixedly connected with a connecting gear 502. A side support plate 601 is provided on the outer side of the impact crushing frame 401, and the side support plate 601 is located on the right side of the impact crushing frame 401. A feeding gear 503 is rotatably connected to the side support plate 601, and the feeding gear 503 is meshed with the connecting gear 502, and the feeding tooth plate 504 is meshed with the feeding gear 503. The rotating percussion frame 402 drives the feeding gear 503 and the feeding tooth plate 504 to rotate through the connecting gear 502. When the feeding tooth plate 504 rotates, the feeding rotating plate 501 is driven to rotate through the feeding shovel 5. A feeding rack 4002 is fixedly connected to the top of the feeding frame 4. When the feeding shovel 5 moves to the top of the feeding frame 4, the feeding gear 5002 is meshed with the feeding rack 4002.

[0042] When the hollow shaft 204 rotates, it drives the connecting gear 502 to rotate by rotating the knocking frame 402. The connecting gear 502 drives the feeding tooth plate 504 to rotate through the feeding gear 503. When the feeding tooth plate 504 rotates, it drives the feeding shovel 5 to rotate around its axis. During the movement of the feeding shovel 5, when the feeding shovel 5 rotates to the bottom of the impact crushing frame 401, it will scoop up the concrete blocks on the ground. As the feeding tooth plate 504 continues to rotate, the feeding shovel 5 gradually rises upward. During this process, the strong magnetic plate 5001 is always adsorbed on the feeding shovel 5, and the concrete blocks in the feeding shovel 5 will not fall down. When the feeding shovel 5 moves to the top of the feeding frame 4 When the feeding shovel 5 is moved downward, the feeding gear 5002 on the feeding shovel 5 is meshed with the feeding rack 4002. At this time, the feeding tooth plate 504 continues to rotate. The feeding gear 5002 rotates under the action of the feeding rack 4002 and drives the strong magnetic plate 5001 to swing downward. The concrete blocks in the feeding shovel 5 fall downward into the feeding frame 4. During the process of the feeding tooth plate 504 driving the feeding shovel 5 to swing downward, the strong magnetic plate 5001 is adsorbed together with the feeding shovel 5 again. The diameter of the connecting gear 502 and the feeding gear 503 is much smaller than the diameter of the feeding tooth plate 504. The rotation speed of the feeding tooth plate 504 is slow, which avoids material blockage due to excessive feeding.

[0043] like Fig. 9 and Fig.10 As shown, it also includes a material storage plate 6, a sliding stopper 602 and a material blocking spring 603. The material storage plate 6 is fixedly connected to the side support plate 601, and the concrete block to be crushed is placed on the material storage plate 6. The material storage plate 6 is slidably connected to the sliding stopper 602 through a guide rod. A material blocking spring 603 is connected between the sliding stopper 602 and the material storage plate 6. One end of the material blocking spring 603 is fixedly connected to the sliding stopper 602, and the other end is fixedly connected to the guide rod on the material storage plate 6.

[0044] When the feeding shovel 5 contacts the concrete blocks on the storage plate 6 and scoops them up, part of the concrete blocks will be pushed by the feeding shovel 5. At this time, under the action of the blocking spring 603, the sliding block 602 limits the position of the concrete blocks to ensure that the feeding shovel 5 can scoop up enough concrete blocks while preventing the concrete blocks from being pushed out of the storage plate 6.

[0045] like Figure 8-Figure 10 As shown, it also includes a fixed protrusion 5041, a sliding plate 604 and a connecting rod 605. The fixed protrusion 5041 is fixedly connected to the feeding tooth plate 504, and the sliding plate 604 is slidably connected in the side support plate 601. The sliding plate 604 and the sliding stopper 602 are connected by the connecting rod 605. When the feeding tooth plate 504 rotates, the sliding plate 604 is pushed up by the fixed protrusion 5041, and then the sliding stopper 602 is pulled closer to each other through the connecting rod 605, so as to gather the concrete blocks on the storage plate 6 to the middle.

[0046] After the feeding shovel 5 scoops up the concrete blocks from the material storage plate 6, the concrete blocks on the material storage plate 6 will move away from the center position. During the rotation of the feeding tooth plate 504, the feeding shovel 5 scoops up the concrete blocks and rotates 90 degrees again. The outer surface of the fixed protrusion 5041 contacts the sliding plate 604 and pushes it to slide upward along the side support plate 601. The upward sliding of the sliding plate 604 will pull the two sliding blocks 602 to slide along the material storage plate 6 and move closer to each other through the connecting rod 605. At this time, the blocking spring 603 is compressed, and the two sliding blocks 602 push the scattered concrete blocks to the center of the top surface of the material storage plate 6, gathering the concrete blocks to facilitate the feeding shovel 5 to shovel the concrete blocks next time.

[0047] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A concrete crushing device, characterized in that: The invention comprises a support frame (1), a rotating crushing frame (2), a rotating screening frame (201), an inner gear ring (2011), a transmission gear (202), a crushing gear (203), a hollow rotating shaft (204), a crushing plate (205), a recovery frame (3), an impact crushing mechanism and a dust collecting mechanism. The supporting frame (1) is rotatably connected to the rotating crushing frame (2), the rotating crushing frame (2) is fixedly connected to the rotating screening frame (201), the rotating screening frame (201) is fixedly connected to the inner gear ring (211), the inner gear ring (211) is rotatably connected to the supporting frame (1), the supporting frame (1) is fixedly connected to the recovery frame (3), the recovery frame (3) is rotatably connected to the transmission gear (202), and the transmission gear (203) is fixedly connected to the transmission gear (202). The driving gear (202) is meshed with the inner gear ring (2011); a hollow rotating shaft (204) is rotatably connected in the recycling frame (3); the hollow rotating shaft (204) passes through the recycling frame (3) and is connected to the outside; a crushing gear (203) is fixedly connected to the hollow rotating shaft (204); the crushing gear (203) is meshed with the driving gear (202); a crushing plate (205) is fixedly connected to the hollow rotating shaft (204); an impact crushing mechanism is mounted on the support frame (1); the impact crushing mechanism performs preliminary crushing of concrete; a dust collecting mechanism is mounted in the crushing plate (205); the dust collecting mechanism absorbs most of the concrete dust generated during the crushing process; The impact crushing mechanism comprises a feed frame (4), a fixed ring (4001), an impact crushing frame (401) and a rotating knocking frame (402); the support frame (1) is fixedly connected to the fixed ring (4001); the feed frame (4) and the impact crushing frame (401) are fixedly connected to the fixed ring (4001); the impact crushing frame (401) is located below the feed frame (4); the rotating knocking frame (402) is fixedly connected to the hollow rotating shaft (204); and the rotating knocking frame (402) rotates along with the hollow rotating shaft (204); The dust suction mechanism comprises an air inlet (2041), a one-way air valve (2051), a sliding knocking block (2052), a return spring (2053) and a piston (2054); the air inlet (2041) is provided on the hollow rotating shaft (204); a circular through hole is provided inside the crushing plate (205); the air inlet (2041) is connected to the circular through hole of the crushing plate (205); the one-way air valve (2051) is installed on the crushing plate (205); a sliding knocking block (2052) is slidably connected inside the crushing plate (205); the sliding knocking block (2052) and the crushing plate (205) are connected via the return spring (2053); a piston (2054) is slidably connected inside the crushing plate (205); the piston (2054) and the sliding knocking block (2052) are connected via an arc rod; The invention also comprises an automatic feeding mechanism, which comprises a feeding rack (4002), a feeding shovel (5), a strong magnetic plate (5001), a feeding gear (5002), a feeding rotating plate (501), a connecting gear (502), a feeding gear (503), a feeding tooth plate (504) and a side support plate (601); the feeding rotating plate (501) is slidably connected inside the fixing ring (4001); the feeding tooth plate (504) is rotatably connected outside the impact crushing frame (401); the feeding rotating plate (501) and the feeding tooth plate (504) are fixedly connected together; the feeding shovel (5) is rotatably connected to the feeding shovel (5); the strong magnetic plate (5001) is coaxially fixedly connected to the feeding gear (5002); the strong magnetic plate (503) is coaxially fixedly connected to the feeding gear (5002); and the strong magnetic plate (503) is coaxially fixedly connected to the feeding gear (5002). 001) is connected with the feeding shovel (5) by magnetic force and forms a frame body, the rotating shaft of the rotating knocking frame (402) passes through the impact crushing frame (401) and is fixedly connected with a connecting gear (502), the outer side of the impact crushing frame (401) is provided with a side support plate (601), the side support plate (601) is located on the right side of the impact crushing frame (401), and a feeding gear (503) is rotatably connected to the side support plate (601), the feeding gear (503) is meshed with the connecting gear (502), the feeding gear plate (504) is meshed with the feeding gear (503), and a feeding rack (4002) is fixedly connected to the top of the feeding frame (4), and when the feeding shovel (5) moves to the top of the feeding frame (4), the feeding gear (5002) is meshed with the feeding rack (4002).

2. A concrete crushing device according to claim 1, characterized in that: The invention also comprises a fixed plate (101), a scraping frame (102), a sliding scraper (103), a scraping spring (104), a flip gear (2001), a magnet (2002) and an arc-shaped flip rack (4003); the fixed plate (101) is fixedly connected to the support frame (1); the scraping frame (102) is fixedly connected to the lower end of the fixed plate (101); the sliding scraper (103) is slidably connected to the scraping frame (102); a scraping spring (104) is connected between the sliding scraper (103) and the scraping frame (102); a magnet (2002) is rotatably connected to the rotating crushing frame (2); a flip gear (2001) is fixedly connected to the rotating shaft of the magnet (2002); an arc-shaped flip rack (4003) is fixedly connected to the fixed ring (4001); and the flip gear (2001) meshes with the arc-shaped flip rack (4003) during the rotation of the rotating crushing frame (2).

3. A concrete crushing device according to claim 1, characterized in that: It also includes a sliding bottom plate (301) and a supporting spring (302). The sliding bottom plate (301) is slidably connected inside the recovery frame (3). A large piece of concrete that slides into the recovery frame (3) will fall onto the sliding bottom plate (301). The supporting spring (302) is connected between the sliding bottom plate (301) and the recovery frame (3).

4. A concrete crushing device according to claim 1, characterized in that: It also comprises an arc-shaped stirring bar (2003), which is fixedly connected to the inner wall of the rotating crushing frame (2), and the arc-shaped stirring bar (2003) rotates with the rotating crushing frame (2). During the rotation of the arc-shaped stirring bar (2003), the concrete block is pushed to move in the direction of the rotating screening frame (201).

5. A concrete crushing device according to claim 1, characterized in that: The material storage plate (6) is fixedly connected to the side support plate (601), and the concrete block to be crushed is placed on the material storage plate (6). The material storage plate (6) is slidably connected to the sliding stopper (602) via a guide rod, and the material stopper spring (603) is connected between the sliding stopper (602) and the material storage plate (6).

6. A concrete crushing device according to claim 5, characterized in that: It also comprises a fixed protrusion (5041), a sliding plate (604) and a connecting rod (605); the fixed protrusion (5041) is fixedly connected to the feeding tooth plate (504); the sliding plate (604) is slidably connected inside the side support plate (601); the sliding plate (604) and the sliding stopper (602) are connected via the connecting rod (605).

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