A crushing device for asphalt production and processing with particle size adjustment function

Abstract

The present invention discloses a crushing device for asphalt production and processing with a particle size adjustment function, and relates to the technical field of crushing devices. It includes a base frame, a casing, a drive device, a lower hopper, an adjustable crushing cone, a diversion processing device and a liner. The present invention uses the electromagnet in the diverter to adsorb the adsorbable metal blocks mixed in the gravel blocks, preventing the metal blocks from damaging the cone and the liner, thereby achieving the purpose of removing the mixed metal blocks. The control system uses a negative pressure generating device to generate negative pressure suction at the dust suction port, thereby achieving the purpose of dust suction and collection. The mechanical vibration generated when the diverter detects the metal adsorption situation is utilized to make the collected dust fall into the dust outlet channel with the vibration, thereby achieving the purpose of automatic discharge of collected dust. The rotating ring drives the downward pressure protrusion to rotate and squeeze the diverter, so that a number of diverter rods continuously form a reciprocating swing of lifting and falling, disturbing the nearby gravel blocks and preventing the gravel blocks from being blocked.

Description

Technical Field

[0001] The present invention relates to the technical field of crushing devices, in particular to a crushing device for asphalt production and processing with a particle size adjustment function. Background Art

[0002] Asphalt concrete, commonly known as asphalt, requires crushing the raw materials, especially the coarse aggregate, during asphalt production. This process involves first crushing large rocks into gravel, which is then crushed again using crushing cones.

[0003] However, secondary crushing of asphalt raw materials presents numerous challenges. For example, dust generated by crushing can damage the surrounding environment and endanger the health of workers. Furthermore, the crushed stone often contains metal fragments, which, due to their inherent strength, cannot be crushed upon entering the crushing device, causing damage to the crushing cone and liner. Furthermore, the conveyor system constantly feeds the material from one side, resulting in uneven feeding and severe localized wear of the crushing cone. While some equipment can address both dust and metal fragment absorption, these external devices require significant space and are expensive, making them unsuitable for today's automated, integrated production needs. Summary of the Invention

[0004] The object of the present invention is to provide a crushing device for asphalt production and processing with a particle size adjustment function to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a crushing device for asphalt production and processing with a particle size adjustment function, comprising a base frame, a shell installed on the base frame, a diversion processing device installed on the shell, a driving device installed in the shell, an adjustable crushing cone rotatably installed in the shell, a liner installed in the shell, a lower hopper installed at the bottom of the shell, and the driving device meshing with the adjustable crushing cone for transmission.

[0006] The crushing device is connected to a control cabinet, which contains a control system for controlling the entire crushing device.

[0007] During operation, the initially crushed gravel is transported to the diversion processing device through the conveying device. After being processed by the diversion processing device, the gravel falls between the cone and the liner. The control system starts the drive motor, and the output shaft of the drive motor drives the first bevel gear to rotate, and the first bevel gear drives the second bevel gear to rotate, and the second bevel gear drives the adjusting main rod to rotate, and the adjusting main rod drives the cone to rotate eccentrically. The eccentrically rotating cone cooperates with the liner to crush the gravel, thereby achieving the purpose of asphalt aggregate processing.

[0008] Furthermore, the diversion processing device includes a processing shell, a detection trigger device is installed in the processing shell, a plurality of diverters are rotatably installed in the processing shell, a flexible connecting pipe is installed at one end of the diverter, and one end of the flexible connecting pipe is connected to the processing shell.

[0009] Furthermore, a dust collecting chamber is provided in the processing shell, a negative pressure flow channel is provided in the processing shell, the negative pressure flow channel is connected to the dust collecting chamber, a filter is installed between the negative pressure flow channel and the dust collecting chamber, the negative pressure flow channel is located at the top of the dust collecting chamber, the negative pressure flow channel is connected to a negative pressure generating device through a pipeline, a dust outlet channel is installed in the processing shell, the dust outlet channel is connected to the dust collecting chamber, a plurality of connecting ports are provided in the processing shell, one end of the connecting port is connected to the dust collecting chamber, and the other end of the connecting port is connected to the flexible connecting pipe, and a material discharge slope is provided in the processing shell.

[0010] The negative pressure generating device is used to extract the air in the dust collecting chamber to generate negative pressure in the dust collecting chamber. An electric valve is provided at the connection between the dust outlet channel and the dust collecting chamber.

[0011] Furthermore, the detection trigger device includes a rotating ring and a shunt motor. The rotating ring is rotatably installed in the processing shell. A number of ring teeth are provided on the rotating ring. The shunt motor is installed in the processing shell. A transmission gear is installed on the output shaft of the shunt motor. The transmission gear is engaged with the ring teeth for transmission. A downward pressure bump is installed at the bottom end of the rotating ring. A metal detection component is slidably installed in the downward pressure bump. A pushing component is installed in the rotating ring. The pushing component is slidably connected to the metal detection component.

[0012] Furthermore, the metal detection component includes a sliding shell, which is slidably installed in the downward pressure protrusion, an arc plate is provided on the top of the sliding shell, a spring telescopic rod is installed on the arc plate, a connecting ball is installed on the spring telescopic rod, the connecting ball is slidably connected to the pushing component, a sliding rod is slidably installed in the sliding shell, a hydraulic chamber is provided between the sliding rod and the sliding shell, hydraulic oil is provided in the hydraulic chamber, an elastic diaphragm is installed in the sliding rod, a piezoelectric element is installed between the elastic diaphragm and the sliding rod, and a ball is movably installed at the bottom end of the sliding rod.

[0013] After the sliding rod extends past the downward-pressing bump, it rotates with the rotating ring. When it reaches the diverter position, the ball bearings on the sliding rod squeeze the roller, causing the diverter to deflect. This compressive force on the diverter acts in reverse on the ball bearings, which transmit this reverse pressure to the sliding rod. This compresses the hydraulic oil in the hydraulic chamber, which in turn transmits pressure to the piezoelectric element within the elastic diaphragm. This pressure generates an electrical signal. When a piece of metal is adsorbed on the diverter rod, the rod's overall weight increases, increasing the force required by the ball bearings to deflect the diverter via the roller. This in turn increases the reverse pressure on the roller. This reverse pressure, transmitted through the sliding rod and hydraulic oil to the piezoelectric element, also increases, generating a stronger electrical signal. The control system uses the strength of this electrical signal to determine the amount of metal adsorbed on the diverter, enabling automated detection of metal adsorption and the quality of the adsorbed metal. If metal is detected, the control system signals the operator to clean the diverter. After detection, the control system retracts the output shaft of the electric telescopic rod, resetting the metal detection assembly.

[0014] When the metal adsorption condition of the diverter is detected, the control system opens the electric valve. Under the vibration generated by the surrounding mechanical movement, the dust collected in the dust collecting chamber falls into the dust outlet channel with the vibration, thereby achieving the purpose of automatic discharge of the collected dust.

[0015] Furthermore, the pushing assembly includes an electric telescopic rod, which is installed in a rotating ring. A sliding block is installed on the output shaft of the electric telescopic rod. The sliding block is provided with an arc groove. A connecting slide is provided in the sliding block. The connecting ball is slidably connected to the connecting slide. The sliding block is slidably installed in the rotating ring.

[0016] When the operation is completed, the control system keeps the rotating ring rotating and activates the squeezing and pushing assembly. The output shaft of the electric telescopic rod drives the sliding block. As the sliding block slides, the curved groove wall on it squeezes the curved plate. The curved plate is compressed and drives the entire metal detection assembly downward within the downward pressure bump. At the same time, the connecting ball slides relative to the connecting slide, and the spring-loaded telescopic rod follows the sliding of the connecting ball, freely extending and retracting to prevent jamming. When the sliding rod on the metal detection assembly extends beyond the downward pressure bump, the electric telescopic rod stops and the metal detection assembly activates.

[0017] Furthermore, the diverter includes a rotating ball, which is rotatably installed in the processing shell, a diverter rod is installed at one end of the rotating ball, a dust suction port is provided at the upper bottom end of the diverter rod, an electromagnet is installed in the diverter rod, a down-pressing rod is installed at the other end of the rotating ball, a roller is rotatably installed on the down-pressing rod, a dust suction channel is provided in the diverter rod, the dust suction channel is connected with the dust suction port, the dust suction channel passes through the rotating ball and the down-pressing rod, the diverter rod adopts a water drop-shaped cross-section design with a small top and a large bottom, and the down-pressing rod is connected to the connecting port through a flexible connecting tube.

[0018] The diverter rod is located near the rotating ball, with its bottom portion resting against the treatment housing, while its top portion is not in contact with the housing. Therefore, the diverter rod cannot deflect downward around the center of the rotating ball, but can only deflect upward. Furthermore, the diverter rod cannot swing left or right around the center of the rotating ball.

[0019] When the crushed stone enters the diversion processing device, the conveyor device is located on the side of the casing, causing the conveyed stone to slide down the side of the discharge slope and converge in the middle of the processing shell. After that, the crushed stone falls further and contacts the diverter. The control system energizes the electromagnet inside the diverter, generating a magnetic force. When magnetically attracted metal pieces mixed in the crushed stone pass through the diverter, they are attracted by the electromagnet, preventing the electromagnet from sliding and damaging the cone and liner when squeezed by them. The diverter adopts a teardrop-shaped cross-section design with a small top and a large bottom, which creates an upward angle on the diverter, allowing the crushed stone to slide diagonally along both sides of the angle, thus playing a guiding role.

[0020] At the same time, the control system starts the diverter motor, and the output shaft of the diverter motor drives the transmission gear to rotate, and the transmission gear drives the rotating ring to rotate through the ring gear, and the rotating ring drives the downward pressure protrusion to rotate. When the downward pressure protrusion rotates to the diverter position, it squeezes the roller, and the roller drives the downward pressure rod to deflect downward around the rotating ball, and at the same time drives the diverter rod on the other side of the rotating ball to deflect upward and lift. After the downward pressure protrusion rotates away from the diverter, the extrusion of the roller disappears, and the lifted diverter rod deflects back in the opposite direction under the action of gravity and the pressure of the crushed stones, and drives the downward pressure rod on the other side to deflect upward and reset through the rotating ball. This cycle is repeated, so that several diverter rods continue to form a reciprocating swing of lifting and falling, disturbing the nearby crushed stones to prevent blockage of crushed stones. Several diverter rods evenly distribute the gathered crushed stones, so that the concentrated feeding originally on one side of the casing is changed to uniform feeding around the cone, avoiding uneven feeding and local wear on one side of the cone and liner. The rolling design of the roller converts friction into its own rotation when it contacts the downward pressing bump, thereby reducing wear.

[0021] The evenly falling gravel will generate dust after being crushed. The control system turns on the negative pressure generating device to generate negative pressure in the dust collecting chamber, and the electric valve is closed. Since the dust suction port is connected to the dust collecting chamber through the dust suction channel, the flexible connecting pipe and the connecting port, the dust suction port also generates negative pressure suction. The dust is sucked into the dust collecting chamber along with the air. The filter on the negative pressure flow channel filters the dust, and the filtered dust remains in the dust collecting chamber, thereby achieving the purpose of dust removal and collection.

[0022] Furthermore, the driving device includes a driving motor, which is installed in the casing, and a first bevel gear is installed on the output shaft of the driving motor; the diversion processing device includes an adjusting main rod, on which a second bevel gear is installed, the second bevel gear is engaged with the first bevel gear for transmission, and a cone is installed on the adjusting main rod.

[0023] Adjusting the main rod can drive the cone to move up and down, thereby changing the distance between the cone and the liner. The smaller the distance between the two, the smaller the crushed particle size, and the larger the distance, the larger the crushed particle size. By adjusting the distance, the function of particle size adjustment can be achieved.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The electromagnet within the diverter absorbs adsorbable metal lumps mixed with the gravel, preventing damage to the cone and liner, thereby removing the mixed metal lumps. The control system utilizes a negative pressure generator to generate negative suction at the dust inlet, which absorbs the dust. The filter screen filters the dust, leaving it in the dust collection chamber, achieving dust removal and collection. The mechanical vibration generated by the diverter during metal adsorption detection causes the collected dust to fall into the dust outlet duct, thereby achieving automatic discharge of the collected dust.

[0026] 2. The downward slope of the processing shell allows the crushed stones to converge, which helps reduce the contact distance between the electromagnet and the metal block and improves the metal block adsorption effect. The gathered crushed stones are evenly divided by several diverter rods, completing the purpose of convergence and redistribution. The original concentrated feed on one side of the shell is transformed into a uniform feed around the cone, avoiding uneven feed and local wear on one side of the cone and liner.

[0027] 3. The rotating ring drives the downward pressing protrusion to rotate and squeeze the diverter, so that several diverter rods continuously form a reciprocating swing of lifting and falling, disturbing the nearby gravel and preventing the gravel from clogging.

[0028] 4. The ball bearings squeeze the diverter, causing it to deflect and generate reverse pressure. The balls transmit this reverse pressure through the sliding rod and hydraulic oil to the piezoelectric element within the elastic diaphragm. The piezoelectric element generates an electrical signal under pressure. The control system determines the amount of metal adsorbed on the diverter based on the strength of the electrical signal, thereby automatically detecting whether the diverter has adsorbed metal and the quality of the adsorbed metal.

[0029] 5. The output shaft of the electric telescopic rod drives the sliding block to slide, and the metal detection component is driven to extend and retract through the cooperation of the arc groove and the arc plate to realize the opening and closing of the metal detection component. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is an overall three-dimensional diagram of the crushing device of the present invention;

[0031] Figure 2 is a perspective view of the crushing device of the present invention;

[0032] Figure 3 For the present invention Figure 2A partial enlarged view of area A in the middle;

[0033] Figure 4 The present invention detects the three-dimensional trigger device Figure 1 ;

[0034] Figure 5 The present invention processes the three-dimensional shell Figure 1 ;

[0035] Figure 6 The present invention processes the three-dimensional shell Figure 2 ;

[0036] Figure 7 The present invention detects the three-dimensional trigger device Figure 2 ;

[0037] Figure 8 The present invention is a three-dimensional pushing component and a metal detection component Figure 1 ;

[0038] Figure 9 The three-dimensional structure of the diverter of the present invention Figure 1 ;

[0039] Figure 10 The three-dimensional structure of the diverter of the present invention Figure 2 ;

[0040] Figure 11 The present invention is a three-dimensional pushing component and a metal detection component Figure 2 .

[0041] Figure: 1, chassis; 2, housing; 3, drive device; 4, discharge hopper; 5, adjustable crushing cone; 6, diversion treatment device; 7, liner; 31, drive motor; 32, first bevel gear; 51, second bevel gear; 52, cone; 53, adjustment main rod; 61, treatment housing; 62, detection trigger device; 63, diverter; 64, flexible connecting pipe; 611, dust collection chamber; 612, dust outlet channel; 613, negative pressure flow channel; 614, connection port; 615, discharge slope; 621, rotating ring; 622, ring gear; 623, downward pressure bump; 624, metal detection component; 625 , pushing assembly; 626, transmission gear; 627, shunt motor; 6241, sliding shell; 6242, arc plate; 6243, hydraulic chamber; 6244, sliding rod; 6245, ball; 6246, elastic diaphragm; 6247, piezoelectric element; 6248, spring telescopic rod; 6249, connecting ball; 6251, electric telescopic rod; 6252, sliding block; 6253, arc groove; 6254, connecting slide; 631, shunt rod; 632, electromagnet; 633, rotating ball; 634, pressing rod; 635, roller; 636, dust suction port; 637, dust suction channel. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] like Figures 1-11 As shown, the present invention provides a technical solution for a crushing device for asphalt production and processing with a particle size adjustment function: the crushing device includes a base frame 1, a shell 2 is installed on the base frame 1, a diversion treatment device 6 is installed on the shell 2, a driving device 3 is installed in the shell 2, an adjustable crushing cone 5 is rotatably installed in the shell 2, a liner 7 is installed in the shell 2, a lower hopper 4 is installed at the bottom end of the shell 2, and the driving device 3 is engaged with the adjustable crushing cone 5 for transmission.

[0044] The crushing device is connected to a control cabinet, which contains a control system for controlling the entire crushing device.

[0045] The driving device 3 includes a driving motor 31, which is installed in the casing 2, and a first bevel gear 32 is installed on the output shaft of the driving motor 31; the diversion processing device 6 includes an adjusting main rod 53, on which a second bevel gear 51 is installed, and the second bevel gear 51 is engaged with the first bevel gear 32 for transmission, and a cone 52 is installed on the adjusting main rod 53.

[0046] Adjusting the main rod 53 can drive the cone 52 to move up and down, thereby changing the distance between the cone 52 and the liner 7. The smaller the distance between the two, the smaller the crushed particle size, and the larger the distance, the larger the crushed particle size. By adjusting the distance, the function of particle size adjustment is achieved.

[0047] The diversion processing device 6 includes a processing shell 61, in which a detection trigger device 62 is installed. A plurality of diverters 63 are rotatably installed in the processing shell 61, and a flexible connecting tube 64 is installed at one end of the diverter 63. One end of the flexible connecting tube 64 is connected to the processing shell 61.

[0048] A dust collecting chamber 611 is provided in the processing shell 61, and a negative pressure flow channel 613 is provided in the processing shell 61. The negative pressure flow channel 613 is connected to the dust collecting chamber 611, and a filter is installed between the negative pressure flow channel 613 and the dust collecting chamber 611. The negative pressure flow channel 613 is located at the top of the dust collecting chamber 611, and the negative pressure flow channel 613 is connected to a negative pressure generating device through a pipeline. A dust outlet channel 612 is installed in the processing shell 61, and the dust outlet channel 612 is connected to the dust collecting chamber 611. A plurality of connecting ports 614 are provided in the processing shell 61, one end of the connecting port 614 is connected to the dust collecting chamber 611, and the other end of the connecting port 614 is connected to the flexible connecting pipe 64. A unloading slope 615 is provided in the processing shell 61.

[0049] The negative pressure generating device is used to extract the air in the dust collecting chamber 611, so that a negative pressure is generated in the dust collecting chamber 611. An electric valve is provided at the connection between the dust outlet duct 612 and the dust collecting chamber 611.

[0050] The detection trigger device 62 includes a rotating ring 621 and a diversion motor 627. The rotating ring 621 is rotatably installed in the processing shell 61. A number of ring teeth 622 are provided on the rotating ring 621. The diversion motor 627 is installed in the processing shell 61. A transmission gear 626 is installed on the output shaft of the diversion motor 627. The transmission gear 626 is engaged with the ring teeth 622 for transmission. A downward pressing protrusion 623 is installed at the bottom end of the rotating ring 621. A metal detection component 624 is slidably installed in the downward pressing protrusion 623. A pushing component 625 is installed in the rotating ring 621. The pushing component 625 is slidably connected to the metal detection component 624.

[0051] The pushing assembly 625 includes an electric telescopic rod 6251, which is installed in the rotating ring 621. A sliding block 6252 is installed on the output shaft of the electric telescopic rod 6251. The sliding block 6252 is provided with an arc groove 6253. A connecting slide 6254 is provided in the sliding block 6252. The connecting ball 6249 is slidably connected to the connecting slide 6254. The sliding block 6252 is slidably installed in the rotating ring 621.

[0052] The metal detection component 624 includes a sliding shell 6241, which is slidably installed in the downward pressing protrusion 623. An arc plate 6242 is provided at the top of the sliding shell 6241. A spring telescopic rod 6248 is installed on the arc plate 6242. A connecting ball 6249 is installed on the spring telescopic rod 6248. The connecting ball 6249 is slidably connected to the pushing component 625. A sliding rod 6244 is slidably installed in the sliding shell 6241. A hydraulic chamber 6243 is provided between the sliding rod 6244 and the sliding shell 6241. Hydraulic oil is provided in the hydraulic chamber 6243. An elastic diaphragm 6246 is installed in the sliding rod 6244. A piezoelectric element 6247 is installed between the elastic diaphragm 6246 and the sliding rod 6244. A ball bearing 6245 is movably installed at the bottom end of the sliding rod 6244.

[0053] The diverter 63 includes a rotating ball 633, which is rotatably installed in the processing shell 61. A diverter rod 631 is installed at one end of the rotating ball 633, and a dust suction port 636 is provided at the lower end of the diverter rod 631. An electromagnet 632 is installed in the diverter rod 631. A downward pressure rod 634 is installed at the other end of the rotating ball 633, and a roller 635 is rotatably installed on the downward pressure rod 634. A dust suction channel 637 is provided in the diverter rod 631, and the dust suction channel 637 is connected to the dust suction port 636. The dust suction channel 637 passes through the rotating ball 633 and the downward pressure rod 634. The diverter rod 631 adopts a teardrop-shaped cross-section design with a small upper part and a large lower part. The downward pressure rod 634 is connected to the connecting port 614 through a flexible connecting tube 64. At the location near the rotating ball 633, the bottom of the diverter rod 631 abuts against the processing housing 61, while the top of the diverter rod 631 is not in contact with the processing housing 61. Therefore, the diverter rod 631 cannot deflect downward about the center of the rotating ball 633, but can only deflect upward about the center of the rotating ball 633. Furthermore, the diverter rod 631 cannot swing left or right about the center of the rotating ball 633.

[0054] The working principle of the present invention is as follows: during operation, the initially crushed gravel is conveyed to the diversion processing device 6 through the conveying device. After being processed by the diversion processing device 6, the gravel falls between the cone 52 and the liner 7. The control system starts the drive motor 31, and the output shaft of the drive motor 31 drives the first bevel gear 32 to rotate, and the first bevel gear 32 drives the second bevel gear 51 to rotate, and the second bevel gear 51 drives the adjusting main rod 53 to rotate, and the adjusting main rod 53 drives the cone 52 to rotate eccentrically. The eccentrically rotating cone 52 cooperates with the liner 7 to crush the gravel, thereby achieving the purpose of asphalt aggregate processing.

[0055] When the crushed stones enter the diversion processing device 6, since the conveying device is located on the side of the casing 2, the conveyed crushed stones slide down the side of the discharge slope 615, and the sliding crushed stones gather in the middle of the processing shell 61. After that, the crushed stones fall further and contact the diverter 63. The control system energizes the electromagnet 632 in the diverter 63, and the electromagnet 632 generates magnetic force. When the magnetically attracted metal blocks mixed in the crushed stones pass through the diverter 63, they are attracted by the electromagnet 632, preventing the electromagnet 632 from sliding and damaging the cone 52 and liner 7 when squeezed by the cone 52 and liner 7. The water drop-shaped cross-section design adopted by the diverter 63 is small at the top and large at the bottom, so that the diverter 63 produces an angle with the corner tip pointing upward, which allows the crushed stones to slide obliquely along both sides of the angle, playing a guiding role.

[0056] At the same time, the control system starts the diversion motor 627, and the output shaft of the diversion motor 627 drives the transmission gear 626 to rotate. The transmission gear 626 drives the rotating ring 621 to rotate through the ring gear 622, and the rotating ring 621 drives the pressing protrusion 623 to rotate. When the pressing protrusion 623 rotates to the position of the diverter 63, it squeezes the roller 635. The roller 635 drives the pressing rod 634 to deflect downward around the rotating ball 633, and at the same time drives the diverter rod 631 on the other side of the rotating ball 633 to deflect upward and lift. After the pressing protrusion 623 rotates away from the diverter 63, the roller 635 is pressed The squeeze disappears, and the raised diverter rod 631 deflects back under the action of gravity and the pressure of the gravel, and drives the downward pressure rod 634 on the other side to deflect upward and reset through the rotating ball 633. This cycle repeats, so that the multiple diverter rods 631 continue to form a reciprocating swing of lifting and falling, disturbing the nearby gravel and preventing gravel blockage. The multiple diverter rods 631 evenly distribute the accumulated gravel, so that the original concentrated feeding on one side of the housing 2 is transformed into a uniform feeding around the cone 52, avoiding uneven feeding and local wear on one side of the cone 52 and liner 7. The rolling design of the roller 635 converts friction into its own rotation when it contacts the downward pressure protrusion 623, thereby achieving the effect of reducing wear.

[0057] The evenly falling gravel will generate dust after being crushed. The control system turns on the negative pressure generating device to generate negative pressure in the dust collecting chamber 611, and the electric valve is closed. Since the dust suction port 636 is connected to the dust collecting chamber 611 through the dust suction channel 637, the flexible connecting pipe 64 and the connecting port 614, the dust suction port 636 also generates negative pressure suction, and the dust is sucked into the dust collecting chamber 611 along with the air. The filter net on the negative pressure flow channel 613 filters the dust, and the filtered dust remains in the dust collecting chamber 611, thereby achieving the purpose of dust removal and collection.

[0058] When the operation is completed, the control system keeps the rotating ring 621 rotating and activates the squeezing and pushing assembly. The output shaft of the electric telescopic rod 6251 drives the sliding block 6252 to slide. As the sliding block 6252 slides, the walls of the arc groove 6253 on it squeeze the arc plate 6242. The pressure on the arc plate 6242 drives the entire metal detection assembly 624 downward within the downward pressing protrusion 623. At the same time, the connecting ball 6249 slides relative to the connecting slide 6254, and the spring telescopic rod 6248 follows the sliding of the connecting ball 6249 to freely extend and retract, preventing jamming. When the sliding rod 6244 on the metal detection assembly 624 extends beyond the downward pressing protrusion 623, the electric telescopic rod 6251 stops, and the metal detection assembly 624 is activated.

[0059] After the sliding rod 6244 extends out of the pressing protrusion 623, as the rotating ring 621 rotates, when it rotates to the position of the diverter 63, the ball 6245 on the sliding rod 6244 squeezes the roller 635 and drives the diverter 63 to deflect. The squeezing force of the diverter 63 acts in reverse to the ball 6245, and the ball 6245 transmits the reverse pressure to the sliding rod 6244. The sliding rod 6244 squeezes the hydraulic oil in the hydraulic chamber 6243, and the hydraulic oil transmits the pressure to the piezoelectric element 6247 in the elastic diaphragm 6246. The piezoelectric element 6247 is compressed to generate an electrical signal. When a piece of metal is attached to diverter rod 631, its overall weight increases, increasing the force required for ball bearing 6245 to deflect diverter 63 via roller 635. Consequently, roller 635 experiences greater reverse pressure. This reverse pressure is then transmitted to piezoelectric element 6247 via sliding rod 6244 and hydraulic oil, increasing the pressure on piezoelectric element 6247 and generating a stronger electrical signal. Based on the strength of this electrical signal, the control system determines the amount of metal adsorbed on diverter 63, thereby automatically detecting the presence and quality of metal adsorbed on diverter 63. Upon detecting metal, the control system issues a cleanup signal to the operator. Upon completion of the detection, the control system retracts the output shaft of the electric telescopic rod 6251, resetting the metal detection assembly 624.

[0060] When the metal adsorption condition of the diverter 63 is detected, the control system opens the electric valve. Under the vibration generated by the surrounding mechanical movement, the dust collected in the dust collecting chamber 611 falls into the dust outlet channel 612 with the vibration, thereby achieving the purpose of automatically discharging the collected dust.

[0061] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A crushing device for asphalt production and processing with particle size adjustment function, characterized by: The crushing device comprises a base frame (1), a housing (2) is mounted on the base frame (1), a diversion processing device (6) is mounted on the housing (2), a driving device (3) is mounted in the housing (2), an adjustable crushing cone (5) is rotatably mounted in the housing (2), a lining plate (7) is mounted in the housing (2), a lower hopper (4) is mounted at the bottom end of the housing (2), and the driving device (3) is meshed with the adjustable crushing cone (5) for transmission; The diversion processing device (6) comprises a processing shell (61), a detection trigger device (62) is installed in the processing shell (61), and a plurality of diverters (63) are rotatably installed in the processing shell (61); The detection trigger device (62) includes a rotating ring (621) and a diversion motor (627), wherein the rotating ring (621) is rotatably mounted in the processing housing (61), and a plurality of ring teeth (622) are provided on the rotating ring (621). The diversion motor (627) is mounted in the processing housing (61), and a transmission gear (626) is mounted on the output shaft of the diversion motor (627), and the transmission gear (626) is meshed with the ring teeth (622) for transmission. A downward pressing block (623) is mounted at the bottom end of the rotating ring (621), and a metal detection component (624) is slidably mounted in the downward pressing block (623). A pushing component (625) is mounted in the rotating ring (621), and the pushing component (625) is slidably connected to the metal detection component (624); The diverter (63) includes a rotating ball (633), which is rotatably mounted in the processing housing (61), a diverter rod (631) is mounted on one end of the rotating ball (633), a dust suction port (636) is provided at the upper bottom end of the diverter rod (631), an electromagnet (632) is mounted in the diverter rod (631), and a pressing rod (634) is mounted on the other end of the rotating ball (633). ) is rotatably mounted on a roller (635), a dust suction channel (637) is provided in the diverter rod (631), the dust suction channel (637) is connected to the dust suction port (636), the dust suction channel (637) passes through the rotating ball (633) and the lower pressure rod (634), the diverter rod (631) adopts a water drop-shaped cross-section design with a small upper part and a large lower part, and the lower pressure rod (634) is connected to the connecting port (614) through a flexible connecting tube (64).

2. The asphalt crushing device with particle size adjustment function for production and processing according to claim 1, characterized in that: A flexible connecting pipe (64) is installed at one end of the flow divider (63), and one end of the flexible connecting pipe (64) is connected to the processing housing (61).

3. The crushing device for asphalt production and processing with particle size adjustment function according to claim 2, characterized in that: A dust collecting chamber (611) is provided in the processing shell (61), a negative pressure flow channel (613) is provided in the processing shell (61), the negative pressure flow channel (613) is communicated with the dust collecting chamber (611), a filter is installed between the negative pressure flow channel (613) and the dust collecting chamber (611), the negative pressure flow channel (613) is located at the top of the dust collecting chamber (611), the negative pressure flow channel (613) is connected to a negative pressure generating device through a pipeline, a dust outlet duct (612) is installed in the processing shell (61), the dust outlet duct (612) is communicated with the dust collecting chamber (611), a plurality of connecting ports (614) are provided in the processing shell (61), one end of the connecting port (614) is communicated with the dust collecting chamber (611), and the other end of the connecting port (614) is communicated with the flexible connecting pipe (64), and a material discharge slope (615) is provided in the processing shell (61).

4. The asphalt crushing device with particle size adjustment function for production and processing according to claim 1, characterized in that: The metal detection component (624) includes a sliding shell (6241), the sliding shell (6241) is slidably installed in the pressing protrusion (623), the top of the sliding shell (6241) is provided with an arc plate (6242), a spring telescopic rod (6248) is installed on the arc plate (6242), a connecting ball (6249) is installed on the spring telescopic rod (6248), the connecting ball (6249) is slidably connected to the pushing component (625), and the sliding shell (6241) is provided with an arc plate (6242). 241), a sliding rod (6244) is slidably installed in the sliding rod (6244), a hydraulic chamber (6243) is provided between the sliding rod (6244) and the sliding shell (6241), hydraulic oil is provided in the hydraulic chamber (6243), an elastic diaphragm (6246) is installed in the sliding rod (6244), a piezoelectric element (6247) is installed between the elastic diaphragm (6246) and the sliding rod (6244), and a ball (6245) is movably installed at the bottom end of the sliding rod (6244).

5. The crushing device for asphalt production and processing with particle size adjustment function according to claim 4, characterized in that: The pushing assembly (625) includes an electric telescopic rod (6251), which is installed in a rotating ring (621). A sliding block (6252) is installed on the output shaft of the electric telescopic rod (6251), and an arc groove (6253) is provided on the sliding block (6252). A connecting slide (6254) is provided in the sliding block (6252), and the connecting ball (6249) is slidably connected to the connecting slide (6254). The sliding block (6252) is slidably installed in the rotating ring (621).

6. The asphalt crushing device with particle size adjustment function for production and processing according to claim 1, characterized in that: The driving device (3) comprises a driving motor (31), the driving motor (31) is installed in the housing (2), and a first bevel gear (32) is installed on the output shaft of the driving motor (31); the diversion processing device (6) comprises an adjusting main rod (53), a second bevel gear (51) is installed on the adjusting main rod (53), the second bevel gear (51) is meshed with the first bevel gear (32) for transmission, and a cone (52) is installed on the adjusting main rod (53).

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