River sand crushing treatment device and use method thereof

Abstract

The application is suitable for the technical field of crushing devices, and provides a river sand crushing treatment device, which comprises a main body frame, a tripod, a driving mechanism, a centrifugal crushing device and a feeding hopper, further comprises a rolling crushing device and a reciprocating lifting mechanism, the rolling crushing device comprises an outer cylinder, an inner cylinder, an inner support and an outer support, and the outer cylinder and the inner cylinder are both conical structures. The use method of the river sand crushing treatment device in the application can complete the primary and advanced crushing of sand and gravel through the cooperation of the centrifugal crushing device and the rolling crushing device with the driving mechanism and the reciprocating lifting mechanism, which can not only effectively ensure the crushing quality of sand and gravel, but also significantly shorten the time required for the entire crushing process, and the rolling crushing device and the centrifugal crushing device can also crush sand and gravel in multiple stages and multiple modes, thereby significantly improving the crushing efficiency and crushing quality of the device.

Description

Technical Field

[0001] This invention belongs to the field of crushing equipment technology, and in particular relates to a river sand and gravel crushing and processing device and its usage method. Background Technology

[0002] River deposition is mainly influenced by various factors such as topographic slope, sediment type and sediment transport, river flow and flow regime, and vegetation. Riverbed sand and gravel are continuously transported and deposited during water flow, forming sand bodies with specific depositional characteristics. Before use, riverbed sand and gravel need to be crushed to meet specific requirements.

[0003] Existing sand and gravel crushing and processing equipment includes an adjusting crushing mechanism and an executing crushing mechanism. The adjusting crushing mechanism can perform primary crushing of sand and gravel through a step-by-step crushing process during operation. The executing crushing mechanism can perform batch-by-batch quantitative compression crushing of the sand and gravel after primary crushing. By performing batch-by-batch quantitative crushing, the amount of sand and gravel crushed in a single compression crushing can be limited, ensuring that the specifications of the sand and gravel after multi-stage crushing meet the production requirements.

[0004] The existing crushing mechanism and crushing execution mechanism both use compression to crush sand and gravel. Although this compression crushing method can crush sand and gravel, its crushing technology is limited. In order to ensure that the sand and gravel can reach the required crushing size, a lot of crushing time is required, resulting in poor crushing efficiency and crushing quality.

[0005] Therefore, in view of the above situation, there is an urgent need to develop a river sand and gravel crushing and processing device and its application method to overcome the shortcomings in current practical applications. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a river sand and gravel crushing and processing device and its usage method to solve the problems in the background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A riverbed sand and gravel crushing and processing device includes a main frame, on which a tripod, a drive mechanism, and a centrifugal crushing device are sequentially mounted. A feed hopper is fixed to the top of the centrifugal crushing device. One end of the drive mechanism is fixed to the tripod, and the other end of the drive mechanism passes through and is connected to the centrifugal crushing device. The other end of the drive mechanism is concentric with the centrifugal crushing device. The device also includes:

[0009] A crushing and compacting device is installed on a main frame and located directly below a centrifugal crushing device. The crushing and compacting device includes an outer cylinder, an inner cylinder, an inner support, and an outer support. The inner cylinder is located inside the outer cylinder. The outer wall of the outer cylinder is fixedly connected to the main frame. An outer support is fixed on the inner wall at the bottom of the outer cylinder. The outer support is rotatably connected to the other end of a drive mechanism. A guide plate is provided between the top of the outer cylinder and the discharge port of the centrifugal crushing device. The two ends of the guide plate are fixed to the top of the outer cylinder and the main frame, respectively. An inner support is fixed on the inner wall at the bottom of the inner cylinder. The top of the inner cylinder is closed. The top of the inner cylinder and the inner support are both vertically slidably connected to the other end of the drive mechanism. Both the outer cylinder and the inner cylinder are conical structures, and the inclination angles of the outer cylinder and the inner cylinder on their respective end faces are different.

[0010] A reciprocating lifting mechanism is located between an inner support and an outer support. One end of the reciprocating lifting mechanism is fixed to the outer support, and the other end of the reciprocating lifting mechanism is installed on the inner support.

[0011] The reciprocating lifting mechanism includes a fixed cylinder, a fixed column, a nut, a connecting frame, a pulley, and a control component. The fixed cylinder is symmetrically fixed at both ends of the inner support along the axis of the inner support. The fixed column is vertically slidably installed inside the fixed cylinder. One end of the fixed column has a threaded groove that mates with the nut. The other end of the fixed column is fixed with the connecting frame. The nut fixes the fixed column to the fixed cylinder by mates with the threaded groove and the connecting frame. A pulley is rotatably installed on the connecting frame. The pulley is slidably connected to the side wall of the control component fixed on the outer support. The front and rear ends of one end of the control component on the horizontal plane are set as concave parts, and the left and right ends of one end of the control component on the horizontal plane are set as convex parts. The height of the convex parts is higher than the height of the concave parts.

[0012] As a further technical solution of the present invention, the crushing and rolling equipment also includes:

[0013] External rolling blocks are vertically and equidistantly fixed to the inner wall of the outer cylinder, and rolling teeth are fixed to the bottom of the external rolling blocks; and

[0014] An inner rolling block is fixed vertically and equidistantly on the outer wall of the inner cylinder, and a rolling tooth plate is fixed on the top of the inner rolling block.

[0015] As a further technical solution of the present invention, both the outer compaction block and the inner compaction block adopt an annular block structure composed of two semicircles, and the top of the outer compaction block near the inner compaction block is an inclined end face, and the bottom of the inner compaction block near the outer compaction block is an inclined end face.

[0016] As a further technical solution of the present invention, the control component adopts a circular cylindrical structure, and the control component is concentric with the inner support and the inner cylinder. The pulley adopts a rotating body with an H-shaped cross section, and the width of the groove in the middle of the pulley is greater than the wall thickness of the control component.

[0017] As a further technical solution of the present invention, the driving mechanism includes:

[0018] A drive motor fixed on a tripod, wherein a drive shaft is fixed to the output end of the drive motor;

[0019] A first main shaft is installed on the centrifugal crushing equipment. One end of the first main shaft extends to the top of the centrifugal crushing equipment and is connected to the drive shaft through a transmission component. The other end of the first main shaft extends to the bottom of the centrifugal crushing equipment. A first connecting key is fixed on the outer wall of the other end of the first main shaft.

[0020] A linkage assembly is rotatably connected to the main frame and the outer support at both ends. One end of the linkage assembly is connected to the first main shaft and the first connecting key, and the other end of the linkage assembly passes through the crushing and rolling equipment and is vertically slidably connected to the inner cylinder and the inner support.

[0021] As a further technical solution of the present invention, the linkage component includes:

[0022] A connecting cylinder rotatably mounted on the main frame is provided, with one end of the connecting cylinder vertically slidably connected to the first main shaft and the first connecting key, and the other end of the connecting cylinder connected to the top of the inner cylinder via a spring; and

[0023] A second main shaft is rotatably mounted on an outer support at one end. A second connecting key is fixed on the outer wall of the other end of the second main shaft. Both the second main shaft and the second connecting key are vertically slidably connected to the other end of the connecting cylinder. The second main shaft is also vertically slidably connected to the inner support and the inner cylinder respectively.

[0024] A method for using the riverbed sand and gravel crushing and processing device as described above, comprising the following specific steps:

[0025] 1. The drive motor drives the drive shaft to rotate, and the drive shaft drives the first main shaft to rotate through the transmission components. The first main shaft drives the centrifugal crushing equipment to rotate. The centrifugal crushing equipment completes the primary crushing of sand and gravel by rotation. The sand and gravel after primary crushing are conveyed to the outer cylinder and inner cylinder through the guide plate.

[0026] 2. The first main shaft drives the connecting cylinder to rotate through the first connecting key. The connecting cylinder drives the second main shaft to rotate through the second connecting key. The second main shaft drives the inner cylinder to rotate. The inner cylinder drives the inner compaction block and the inner support to rotate synchronously. The inner compaction block agitates the sand and gravel between the two by rotating and cooperating with the outer compaction block.

[0027] 3. The inner support drives the fixed cylinder to rotate, and the fixed cylinder drives the connecting frame to rotate through the fixed column. The connecting frame drives the pulley to rotate on the control component. When the pulley slides to the convex part, the fixed column drives the inner support to rise to the highest point through the nut. The inner support drives the inner cylinder and the inner rolling block on it to rise to the highest point. At this time, the inner cylinder compresses the spring, so that it is in a stored state. When the pulley slides to the concave part, the spring drives the inner cylinder to fall by releasing its own elastic force. The inner cylinder drives the inner support to move down. Both the inner support and the inner cylinder fall to the lowest point. The pulley drives the inner support to rise and fall back and forth by sliding back and forth between the concave part and the convex part. The inner support drives the inner cylinder in the rotating state to rise and fall back and forth.

[0028] 3. When the inner cylinder rises inside the outer cylinder, the distance between the inner and outer compaction blocks decreases. As the inner cylinder moves upward synchronously while the outer cylinder remains fixed, the compaction space between the compaction blocks, inner compaction blocks, outer cylinder, and inner cylinder decreases. The inner compaction blocks and inner cylinder compact the sand and gravel vertically and by rotating and rising synchronously.

[0029] Fourth, as the inner cylinder descends inside the outer cylinder, the distance between the inner and outer crushing blocks increases. At the same time, the inner crushing blocks and the inner cylinder rotate synchronously, and the sand and gravel between them fall rapidly to the next set of inner and outer crushing blocks. Since the crushing space between each set of inner crushing blocks, inner crushing blocks, outer cylinder and inner cylinder is not the same, the next set of inner and outer crushing blocks crushes the sand and gravel again by rising and completes the advanced crushing of the sand and gravel.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] The drive mechanism can simultaneously drive the centrifugal crusher and the inner cylinder to rotate. The centrifugal crusher can perform primary crushing of sand and gravel by rotating, and the sand and gravel after primary crushing can be transported between the outer cylinder and the inner cylinder through the guide plate.

[0032] The rotation of the inner cylinder within the outer cylinder not only agitates the sand and gravel between them, preventing blockages and ensuring efficient and high-quality crushing, but also drives the inner support at its bottom to rotate synchronously. This inner support, in turn, rotates the other end of the reciprocating lifting mechanism. The other end of the reciprocating lifting mechanism, through rotation and coordination with the end fixed to the outer support, causes the inner support to reciprocate and lift. This, in turn, causes the rotating inner cylinder to reciprocate and lift, agitating the sand and gravel between them while simultaneously crushing it through vertical and rolling movements. This achieves advanced crushing of the sand and gravel to the required size, enabling continuous crushing. This not only effectively guarantees the quality of the crushed sand and gravel but also significantly shortens the overall crushing time. Furthermore, it facilitates the transportation and subsequent processing of the sand and gravel, significantly improving the crushing efficiency and quality of the device.

[0033] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0034] Figure 1 This is a first-view structural schematic diagram of the river sand and gravel crushing and processing device provided in an embodiment of the present invention.

[0035] Figure 2 This is a second-view structural schematic diagram of the river sand and gravel crushing and processing device provided in an embodiment of the present invention.

[0036] Figure 3 for Figure 2 A schematic diagram of the structure of the central guide plate and the crushing equipment.

[0037] Figure 4 for Figure 2 Half-sectional view of the structure of the central guide plate and the crushing equipment.

[0038] Figure 5 for Figure 4 Enlarged view of the structure at point A in the middle.

[0039] Figure 6 for Figure 4 Enlarged view of the internal structure of a medium-sized crushing and rolling mill.

[0040] Figure 7 for Figure 6 A side view of the structure in an inclined direction.

[0041] Figure 8 for Figure 6 A schematic diagram of the reciprocating lifting mechanism.

[0042] Reference numerals: 100-Main frame, 200-Triangle frame, 300-Drive mechanism, 310-Drive motor, 320-Drive shaft, 330-Transmission component, 340-First main shaft, 350-First connecting key, 360-Linkage assembly, 361-Connecting cylinder, 362-Second main shaft, 363-Spring, 364-Second connecting key, 400-Centrifugal crushing equipment, 500-Feed hopper, 600-Guide plate 700-Crushing and crushing equipment, 710-Outer cylinder, 720-Inner cylinder, 730-Outer crushing block, 740-Inner crushing block, 750-Inner support, 760-Outer support, 770-Crushing tooth plate, 800-Reciprocating lifting mechanism, 810-Fixed cylinder, 820-Fixed column, 830-Nut, 840-Connecting frame, 850-Pulley, 860-Control component, 870-Protrusion part, 880-Concave part. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0044] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0045] like Figures 1 to 8 As shown, a riverbed sand and gravel crushing and processing device provided as an embodiment of the present invention includes a main frame 100. The main frame 100 is preferably a steel structure welded from I-beams or rectangular steel pipes. A tripod 200, a drive mechanism 300, and a centrifugal crushing device 400 are sequentially installed on the main frame 100. A feed hopper 500 is fixed to the top of the centrifugal crushing device 400. One end of the drive mechanism 300 is fixed to the tripod 200, and the other end of the drive mechanism 300 passes through and is connected to the centrifugal crushing device 400. The other end of the drive mechanism 300 is concentric with the centrifugal crushing device 400. The device also includes:

[0046] A crushing and compacting device 700 is mounted on a main frame 100 and located directly below a centrifugal crushing device 400. The crushing and compacting device 700 includes an outer cylinder 710, an inner cylinder 720, an inner support 750, and an outer support 760. The inner cylinder 720 is located inside the outer cylinder 710. The outer wall of the outer cylinder 710 is fixedly connected to the main frame 100. The outer support 760 is fixed to the inner wall at the bottom of the outer cylinder 710 and is rotatably connected to the other end of a drive mechanism 300. A guide plate 600 is provided between the top and the discharge port of the centrifugal crushing equipment 400. The two ends of the guide plate 600 are fixed to the top of the outer cylinder 710 and the main frame 100, respectively. An inner support 750 is fixed to the inner wall of the bottom of the inner cylinder 720. The top of the inner cylinder 720 is closed. The top of the inner cylinder 720 and the inner support 750 are vertically slidably connected to the other end of the drive mechanism 300. Both the outer cylinder 710 and the inner cylinder 720 are conical structures, and the inclination angles of the outer cylinder 710 and the inner cylinder 720 on their respective end faces are different.

[0047] A reciprocating lifting mechanism 800 is located between an inner support 750 and an outer support 760. One end of the reciprocating lifting mechanism 800 is fixed on the outer support 760, and the other end of the reciprocating lifting mechanism 800 is installed on the inner support 750.

[0048] The drive mechanism 300 can drive the centrifugal crusher 400 and the inner cylinder 720 to rotate simultaneously. The centrifugal crusher 400 can complete the primary crushing of sand and gravel by rotating, and the sand and gravel after primary crushing can be transported between the outer cylinder 710 and the inner cylinder 720 through the guide plate 600.

[0049] The rotation of the inner cylinder 720 within the outer cylinder 710 not only agitates the sand and gravel between them, preventing blockages and ensuring efficient and high-quality crushing, but also drives the inner support 750 at its bottom to rotate synchronously. The inner support 750, in turn, rotates the other end of the reciprocating lifting mechanism 800. This mechanism, through rotation and coordination with the end fixed to the outer support 760, causes the inner support 750 to reciprocate and lift. This, in turn, causes the rotating inner cylinder 720 to reciprocate and lift, thus agitating the sand and gravel between it and the outer cylinder 710 while simultaneously crushing it through reciprocating movement. This advanced crushing process reduces the sand and gravel to the required size, facilitating transportation and subsequent processing, significantly improving the crushing efficiency and quality. Furthermore, the continuous crushing process effectively guarantees the quality of the crushed sand and gravel and significantly shortens the overall crushing time.

[0050] In this embodiment, a turntable is provided inside the centrifugal crushing device 400, and crushing pendulums are evenly distributed on the turntable. The crushing pendulums can perform primary crushing of sand and gravel inside the centrifugal crushing device 400 by centrifugal rotation.

[0051] The guide plate 600 is preferably formed by two semi-circular arc plates locked together, which can effectively and quickly guide the sand and gravel discharged from the outlet of the centrifugal crusher 400 to the inside of the crushing and rolling equipment 700.

[0052] like Figures 3 to 7 As shown, in a preferred embodiment of the present invention, the crushing and rolling device 700 further includes an outer crushing block 730, an inner crushing block 740, and a crushing tooth plate 770. The outer crushing block 730 is vertically and equidistantly fixed on the inner wall of the outer cylinder 710, and the inner crushing block 740 is vertically and equidistantly fixed on the outer wall of the inner cylinder 720. The bottom of the outer crushing block 730 and the top of the inner crushing block 740 are both fixed with crushing tooth plates 770.

[0053] like Figures 3 to 7 As shown in the preferred embodiment of the present invention, both the outer compaction block 730 and the inner compaction block 740 preferably adopt an annular block structure composed of two semicircles. The top of the outer compaction block 730 is inclined on the side near the inner compaction block 740, and the bottom of the inner compaction block 740 is inclined on the side near the outer compaction block 730. This facilitates the movement of sand and gravel between the outer compaction block 730 and the inner compaction block 740.

[0054] In this embodiment, the inner cylinder 720 drives the inner crushing block 740 and the inner support 750 to rotate synchronously. The inner crushing block 740 can agitate the sand and gravel between the two by rotating and cooperating with the outer crushing block 730, so that blockage and other problems will not easily occur between them, thus ensuring the crushing efficiency and crushing quality of the sand and gravel.

[0055] The inner support 750 drives the other end of the reciprocating lifting mechanism 800 to rotate. The other end of the reciprocating lifting mechanism 800 can drive the inner support 750 to reciprocate by rotating and cooperating with the end fixed on the outer support 760. The inner support 750 drives the inner cylinder 720 to reciprocate by rotating. The inner cylinder 720 drives the inner crushing block 740 on it to reciprocate by moving back and forth. The inner crushing block 740 can crush the sand and gravel between the two by reciprocating by moving back and forth and cooperating with the outer crushing block 730, thereby completing the high-level crushing of the sand and gravel, crushing it to the required size, facilitating the transportation or subsequent processing of the sand and gravel, significantly improving the crushing efficiency and crushing quality of the device, and continuously crushing the sand and gravel, which can not only effectively ensure the crushing quality of the sand and gravel, but also significantly shorten the time required for the entire crushing process.

[0056] As the inner cylinder 720 descends inside the outer cylinder 710, the distance between the inner crushing block 740 and the outer crushing block 730 continuously increases. Simultaneously, the inner crushing block 740 and the inner cylinder 720 rotate synchronously. This helps the sand and gravel between them to fall quickly to the next set of inner crushing blocks 740 and outer crushing blocks 730. Since the crushing space surrounding each set of inner crushing blocks 740, outer cylinder 710, and inner cylinder 720 is not consistent, the next set of inner crushing blocks 740 and outer crushing blocks 730 can rise and crush them again, thereby completing the multi-stage crushing process of sand and gravel, and thus completing the advanced crushing of sand and gravel, improving the crushing efficiency and crushing quality of the device.

[0057] As the inner cylinder 720 rises inside the outer cylinder 710, the distance between the inner compaction block 740 and the outer compaction block 730 continuously decreases. Since the inner cylinder 720 moves upward synchronously while the position of the outer cylinder 710 remains fixed, the compaction space surrounding the compaction block, the inner compaction block 740, the outer cylinder 710, and the inner cylinder 720 continuously shrinks. This allows the inner compaction block 740 and the outer compaction block 730 to crush the sand and gravel in the compaction space. Furthermore, the inner compaction block 740 and the inner cylinder 720 rotate synchronously, enabling them to not only vertically crush the sand and gravel but also roll and crush it through rotation. This ensures the compaction efficiency and quality of the sand and gravel, further improving the crushing quality and efficiency of the device.

[0058] In a preferred embodiment, the inner rolling block 740 and the outer rolling block 730 are respectively fixed to the inner cylinder 720 and the outer cylinder 710 by fixing bolts, and the inner cylinder 720 and the outer cylinder 710 are provided with mounting grooves for the inner rolling block 740 and the outer rolling block 730 at the positions corresponding to the inner rolling block 740 and the outer rolling block 730.

[0059] like Figures 4 to 8 As shown in a preferred embodiment of the present invention, the reciprocating lifting mechanism 800 includes a fixed cylinder 810, a fixed column 820, a nut 830, a connecting frame 840, a pulley 850, and a control component 860. The fixed cylinder 810 is symmetrically fixed at both ends of the inner support 750 along the axis of the inner support 750. The fixed column 820 is vertically slidably installed inside the fixed cylinder 810. One end of the fixed column 820 has a threaded groove that mates with the nut 830, and the connecting frame 840 is fixed to the other end of the fixed column 820. The nut 830, by mates with the threaded groove and the connecting frame 840, can... The fixed column 820 is fixed on the fixed cylinder 810 to prevent it from moving up and down easily. A pulley 850 is rotatably installed on the connecting frame 840. The pulley 850 is slidably connected to the side wall of the control component 860 fixed on the outer bracket 760. The front and rear ends of one horizontal plane of the control component 860 are set as concave parts 880, and the left and right ends of one horizontal plane of the control component 860 are set as convex parts 870. The height of the convex parts 870 is higher than the height of the concave parts 880. The control component 860, the convex parts 870 and the concave parts 880 are preferably manufactured using a one-piece molding process.

[0060] like Figures 4 to 8 As shown, in a preferred embodiment of the present invention, the control element 860 is preferably a circular cylindrical structure, and the control element 860 is concentric with the inner support 750 and the inner cylinder 720. The pulley 850 is preferably a rotating body with an H-shaped cross section, and the width of the groove in the middle of the pulley 850 is greater than the wall thickness of the control element 860.

[0061] In this embodiment, the inner support 750 drives the fixed cylinder 810 to rotate, the fixed cylinder 810 drives the connecting frame 840 to rotate via the fixed column 820, and the connecting frame 840 drives the pulley 850 to rotate on the control component 860. When the pulley 850 slides to the protrusion 870, the fixed column 820 drives the inner support 750 to rise to the highest point via the nut 830. The inner support 750 drives the inner cylinder 720 and the inner rolling block 740 on it to rise to the highest point. When the pulley 850 slides to the concave point, the fixed column 820 drives the inner support 750 to fall to the lowest point via the nut 830. The inner support 750 drives the inner cylinder 720 and the inner rolling block 740 on it to fall to the lowest point.

[0062] The pulley 850 drives the inner support 750 to move up and down repeatedly by sliding back and forth between the concave part 880 and the convex part 870. The inner support 750 drives the inner cylinder 720, which is in a rotating state, to move up and down repeatedly. The inner cylinder 720 drives the inner crushing block 740 on it to move up and down synchronously. The inner crushing block 740 can crush the sand and gravel between the two by moving up and down repeatedly and cooperating with the outer crushing block 730, thereby completing the high-level crushing of the sand and gravel, crushing it to the required size, facilitating the transportation of the sand and gravel or its subsequent processing, and significantly improving the crushing efficiency and crushing quality of the device.

[0063] In a preferred embodiment, by changing the screw connection position of the nut 830 and the screw groove, the initial position of the fixing column 820 on the fixing cylinder 810 can be changed, thereby changing the initial height of the inner compaction block 740. This allows the inner compaction block 740 to compact the sand and gravel to the required size through reciprocating lifting, rotation, and cooperation with the outer compaction block 730, thus realizing the multifunctionality of the device and improving its applicability and practicality.

[0064] like Figures 1 to 7 As shown, in a preferred embodiment of the present invention, the drive mechanism 300 includes a drive motor 310, a drive shaft 320, a transmission component 330, a first main shaft 340, a first connecting key 350, and a linkage assembly 360. The drive motor 310 is fixed on the tripod 200, and the drive shaft 320 is fixed on the output end of the drive motor 310. The first main shaft 340 is mounted on the centrifugal crushing equipment 400, and one end of the first main shaft 340 extends to the top of the centrifugal crushing equipment 400 and is connected to the drive shaft 320 through the transmission component 330. The other end of the first main shaft 340 extends to the bottom of the centrifugal crushing equipment 400. A first connecting key 350 is fixed on the outer wall of the other end of the first main shaft 340. Both the first main shaft 340 and the first connecting key 350 are connected to one end of the linkage component 360. The linkage component 360 penetrates the crushing equipment 700 and is vertically slidably connected to the inner cylinder 720 and the inner support 750, respectively. One end of the linkage component 360 is rotatably mounted on the main frame 100, and the other end of the linkage component 360 is rotatably mounted on the outer support 760.

[0065] In this embodiment, the drive motor 310 drives the drive shaft 320 to rotate, and the drive shaft 320 drives the first main shaft 340 to rotate through the transmission component 330. The first main shaft 340 drives the centrifugal crushing device 400 to rotate. The centrifugal crushing device 400 can complete the primary crushing of sand and gravel by rotating, and the sand and gravel after primary crushing can be transported between the outer cylinder 710 and the inner cylinder 720 through the guide plate 600.

[0066] Meanwhile, the first main shaft 340 can drive the linkage component 360 to rotate synchronously through the first connecting key 350. The linkage component 360 drives the inner cylinder 720 to rotate, thereby completing the advanced crushing of sand and gravel to the required size, which facilitates the transportation or subsequent processing of sand and gravel, significantly improving the crushing efficiency and crushing quality of the device. Moreover, the continuous crushing of sand and gravel can not only effectively ensure the crushing quality of sand and gravel, but also significantly shorten the time required for the entire crushing process.

[0067] In a preferred embodiment, the transmission component 330 preferably adopts a belt drive structure consisting of a transmission belt and a pulley.

[0068] like Figures 1 to 7 As shown, in a preferred embodiment of the present invention, the linkage assembly 360 includes a connecting cylinder 361, a second main shaft 362, a spring 363, and a second connecting key 364. The connecting cylinder 361 is rotatably mounted on the main frame 100. One end of the connecting cylinder 361 is vertically slidably connected to the first main shaft 340 and the first connecting key 350, respectively. The other end of the connecting cylinder 361 is vertically slidably connected to the second main shaft 362 and the second connecting key 364, respectively. One end of the connecting cylinder 361 is connected to the top of the inner cylinder 720 through the spring 363. The second connecting key 364 is fixed on the outer wall of the second main shaft 362. The second main shaft 362 is vertically slidably connected to the inner support 750 and the inner cylinder 720, respectively. One end of the second main shaft 362 is rotatably mounted on the outer support 760.

[0069] In this embodiment, the first main shaft 340 can drive the connecting cylinder 361 to rotate via the first connecting key 350, and the connecting cylinder 361 drives the second main shaft 362 to rotate via the second connecting key 364. The second main shaft 362 drives the inner cylinder 720 to rotate, thereby completing the advanced crushing of sand and gravel.

[0070] When the pulley 850 slides to the protrusion 870, the fixed column 820 drives the inner support 750 to rise to the highest point through the nut 830. The inner support 750 drives the inner cylinder 720 and the inner rolling block 740 on it to rise to the highest point. At this time, the inner cylinder 720 compresses the spring 363, putting it in a stored state. When the pulley 850 slides to the concave point, the spring 363 releases its own elastic force to drive the inner cylinder 720 to descend. The inner cylinder 720 drives the inner support 750 to move down, so that both the inner support 750 and the inner cylinder 720 descend to the lowest point.

[0071] like Figures 1 to 8 As shown, the specific steps of using a riverbed sand and gravel crushing and processing device, provided as an embodiment of the present invention, are as follows:

[0072] 1. The drive motor 310 drives the drive shaft 320 to rotate. The drive shaft 320 drives the first main shaft 340 to rotate through the transmission component 330. The first main shaft 340 drives the centrifugal crushing equipment 400 to rotate. The centrifugal crushing equipment 400 can complete the primary crushing of sand and gravel by rotating. The sand and gravel after primary crushing can be transported between the outer cylinder 710 and the inner cylinder 720 through the guide plate 600.

[0073] 2. The first main shaft 340 can drive the connecting cylinder 361 to rotate through the first connecting key 350. The connecting cylinder 361 drives the second main shaft 362 to rotate through the second connecting key 364. The second main shaft 362 drives the inner cylinder 720 to rotate. The inner cylinder 720 drives the inner crushing block 740 and the inner support 750 to rotate synchronously. The inner crushing block 740 can agitate the sand and gravel between the two by rotating and cooperating with the outer crushing block 730, so that blockage and other problems will not easily occur between the two, thus ensuring the crushing efficiency and crushing quality of the sand and gravel.

[0074] 3. The inner support 750 drives the fixed cylinder 810 to rotate. The fixed cylinder 810 drives the connecting frame 840 to rotate via the fixed column 820. The connecting frame 840 drives the pulley 850 to rotate on the control component 860. When the pulley 850 slides to the protrusion 870, the fixed column 820 drives the inner support 750 to rise to the highest point via the nut 830. The inner support 750 drives the inner cylinder 720 and the inner rolling block 740 on it to rise to the highest point. At this time, the inner cylinder 720 presses against the spring 363. The pulley 850 is compressed to put it into a storage state. When the pulley 850 slides to the concave point, the spring 363 releases its own elastic force to drive the inner cylinder 720 to descend. The inner cylinder 720 drives the inner support 750 to move down, so that both the inner support 750 and the inner cylinder 720 descend to the lowest point. The pulley 850 can drive the inner support 750 to move up and down repeatedly by sliding back and forth between the concave point 880 and the convex point 870. The inner support 750 drives the inner cylinder 720, which is in a rotating state, to move up and down repeatedly.

[0075] Third, as the inner cylinder 720 rises inside the outer cylinder 710, the distance between the inner crushing block 740 and the outer crushing block 730 continuously decreases. Since the inner cylinder 720 moves upward synchronously while the position of the outer cylinder 710 remains fixed, the crushing space surrounding the crushing block, the inner crushing block 740, the outer cylinder 710, and the inner cylinder 720 continuously shrinks. This allows the inner crushing block 740 and the outer crushing block 730 to crush the sand and gravel in the crushing space. Furthermore, the inner crushing block 740 and the inner cylinder 720 rotate synchronously, enabling them to not only crush the sand and gravel vertically but also roll and crush it through rotation, ensuring the crushing efficiency and quality of the sand and gravel, and further improving the crushing quality and efficiency of the device.

[0076] Fourth, as the inner cylinder 720 descends inside the outer cylinder 710, the distance between the inner compaction block 740 and the outer compaction block 730 continuously increases. At the same time, the inner compaction block 740 and the inner cylinder 720 rotate synchronously. This helps the sand and gravel between them to fall quickly to the next set of inner compaction blocks 740 and outer compaction blocks 730. Since the compaction space surrounding each set of inner compaction blocks 740, outer cylinder 710 and inner cylinder 720 is not the same, the next set of inner compaction blocks 740 and outer compaction blocks 730 can be raised to compact them again, thereby completing the multi-stage crushing process of sand and gravel, and thus completing the advanced crushing of sand and gravel.

[0077] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A riverbed sand and gravel crushing and processing device, comprising a main frame, on which a tripod, a drive mechanism, and a centrifugal crushing device are sequentially mounted, a feed hopper is fixed to the top of the centrifugal crushing device, one end of the drive mechanism is fixed to the tripod, and the other end of the drive mechanism passes through and is connected to the centrifugal crushing device, wherein the other end of the drive mechanism is concentric with the centrifugal crushing device, characterized in that... Also includes: A crushing and compacting device is installed on a main frame and located directly below a centrifugal crushing device. The crushing and compacting device includes an outer cylinder, an inner cylinder, an inner support, and an outer support. The inner cylinder is located inside the outer cylinder. The outer wall of the outer cylinder is fixedly connected to the main frame. An outer support is fixed on the inner wall at the bottom of the outer cylinder. The outer support is rotatably connected to the other end of a drive mechanism. A guide plate is provided between the top of the outer cylinder and the discharge port of the centrifugal crushing device. The two ends of the guide plate are fixed to the top of the outer cylinder and the main frame, respectively. An inner support is fixed on the inner wall at the bottom of the inner cylinder. The top of the inner cylinder is closed. The top of the inner cylinder and the inner support are both vertically slidably connected to the other end of the drive mechanism. Both the outer cylinder and the inner cylinder are conical structures, and the inclination angles of the outer cylinder and the inner cylinder on their respective end faces are different. A reciprocating lifting mechanism is located between an inner support and an outer support. One end of the reciprocating lifting mechanism is fixed to the outer support, and the other end of the reciprocating lifting mechanism is installed on the inner support. The reciprocating lifting mechanism includes a fixed cylinder, a fixed column, a nut, a connecting frame, a pulley, and a control component. The fixed cylinder is symmetrically fixed at both ends of the inner support along the axis of the inner support. The fixed column is vertically slidably installed inside the fixed cylinder. One end of the fixed column has a threaded groove that mates with the nut. The other end of the fixed column is fixed with the connecting frame. The nut fixes the fixed column to the fixed cylinder by mates with the threaded groove and the connecting frame. A pulley is rotatably installed on the connecting frame. The pulley is slidably connected to the side wall of the control component fixed on the outer support. The front and rear ends of one end of the control component on the horizontal plane are set as concave parts, and the left and right ends of one end of the control component on the horizontal plane are set as convex parts. The height of the convex parts is higher than the height of the concave parts. The crushing and rolling equipment also includes: External rolling blocks are vertically and equidistantly fixed to the inner wall of the outer cylinder, and rolling teeth are fixed to the bottom of the external rolling blocks; and An inner rolling block is fixed vertically and equidistantly on the outer wall of the inner cylinder, and a rolling tooth plate is fixed on the top of the inner rolling block; Both the outer compaction block and the inner compaction block adopt a ring-shaped block structure composed of two semicircles. The top of the outer compaction block is inclined on the side near the inner compaction block, and the bottom of the inner compaction block is inclined on the side near the outer compaction block. The control component adopts a circular cylindrical structure, and all control components are concentric with the inner support and the inner cylinder. The pulley adopts a rotating body with an H-shaped cross section, and the width of the groove in the middle of the pulley is greater than the wall thickness of the control component. The drive mechanism includes: A drive motor fixed on a tripod, wherein a drive shaft is fixed to the output end of the drive motor; A first main shaft is installed on the centrifugal crushing equipment. One end of the first main shaft extends to the top of the centrifugal crushing equipment and is connected to the drive shaft through a transmission component. The other end of the first main shaft extends to the bottom of the centrifugal crushing equipment. A first connecting key is fixed on the outer wall of the other end of the first main shaft. A linkage assembly is rotatably connected to the main frame and the outer support at both ends. One end of the linkage assembly is connected to the first main shaft and the first connecting key, and the other end of the linkage assembly passes through the crushing and rolling equipment and is vertically slidably connected to the inner cylinder and the inner support.

2. The riverbed sand and gravel crushing and processing device according to claim 1, characterized in that, The linkage component includes: A connecting cylinder rotatably mounted on the main frame is provided, with one end of the connecting cylinder vertically slidably connected to the first main shaft and the first connecting key, and the other end of the connecting cylinder connected to the top of the inner cylinder via a spring; and A second main shaft is rotatably mounted on an outer support at one end. A second connecting key is fixed on the outer wall of the other end of the second main shaft. Both the second main shaft and the second connecting key are vertically slidably connected to the other end of the connecting cylinder. The second main shaft is also vertically slidably connected to the inner support and the inner cylinder respectively.

3. A method of using the riverbed sand and gravel crushing and processing device as described in claim 2, characterized in that, The specific steps are as follows:

1. The drive motor drives the drive shaft to rotate, and the drive shaft drives the first main shaft to rotate through the transmission components. The first main shaft drives the centrifugal crushing equipment to rotate. The centrifugal crushing equipment completes the primary crushing of sand and gravel by rotation. The sand and gravel after primary crushing are conveyed to the outer cylinder and inner cylinder through the guide plate.

2. The first main shaft drives the connecting cylinder to rotate through the first connecting key. The connecting cylinder drives the second main shaft to rotate through the second connecting key. The second main shaft drives the inner cylinder to rotate. The inner cylinder drives the inner compaction block and the inner support to rotate synchronously. The inner compaction block agitates the sand and gravel between the two by rotating and cooperating with the outer compaction block.

3. The inner support drives the fixed cylinder to rotate, and the fixed cylinder drives the connecting frame to rotate through the fixed column. The connecting frame drives the pulley to rotate on the control component. When the pulley slides to the convex part, the fixed column drives the inner support to rise to the highest point through the nut. The inner support drives the inner cylinder and the inner rolling block on it to rise to the highest point. At this time, the inner cylinder compresses the spring, so that it is in a stored state. When the pulley slides to the concave part, the spring drives the inner cylinder to fall by releasing its own elastic force. The inner cylinder drives the inner support to move down. Both the inner support and the inner cylinder fall to the lowest point. The pulley drives the inner support to rise and fall back and forth by sliding back and forth between the concave part and the convex part. The inner support drives the inner cylinder in the rotating state to rise and fall back and forth.

3. When the inner cylinder rises inside the outer cylinder, the distance between the inner and outer compaction blocks decreases. As the inner cylinder moves upward synchronously while the outer cylinder remains fixed, the compaction space between the compaction blocks, inner compaction blocks, outer cylinder, and inner cylinder decreases. The inner compaction blocks and inner cylinder compact the sand and gravel vertically and by rotating synchronously. Fourth, as the inner cylinder descends inside the outer cylinder, the distance between the inner and outer crushing blocks increases. At the same time, the inner crushing blocks and the inner cylinder rotate synchronously, and the sand and gravel between them fall rapidly to the next set of inner and outer crushing blocks. Since the crushing space between each set of inner crushing blocks, inner crushing blocks, outer cylinder and inner cylinder is not the same, the next set of inner and outer crushing blocks crushes the sand and gravel again by rising and completes the advanced crushing of the sand and gravel.

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