Device and method for classifying and screening construction waste in road construction

Abstract

The invention relates to the technical field of garbage classification and screening, discloses a road construction construction garbage classification and screening device and mainly aims to solve the technical problems that an automatic construction garbage classification and screening device dismounted in existing road construction is complex in structure and high in supporting cost and use and maintenance cost. The functions of simultaneously driving the crushing unit and the traction unit to crush and pull reinforced concrete are achieved by improving the structure of the driving unit, the sorting work of reinforcing steel bars and alloy components can be better met, the structure of the whole device is optimized, the energy consumption and the maintenance difficulty of the device are reduced, and the working efficiency is improved. And the requirements of users can be better met.

Description

Technical Field

[0001] The invention relates to the technical field of garbage classification and screening, and relates to a device and method for classifying and screening construction garbage during road construction. Background Art

[0002] Construction waste generated during municipal road construction generally refers to the waste generated during the construction, laying, demolition and repair of various buildings, structures, pipe networks, etc. by construction units, which mainly includes concrete waste or reinforced concrete waste. At present, when dealing with construction waste on the market, it is necessary to screen the recyclable metals contained in the construction waste to avoid wasting metal resources and save construction costs.

[0003] In order to solve the above problems, a person skilled in the art has disclosed a patent of a municipal road construction waste classification and screening device and a screening method, and its publication number is: CN114832894A; the patent requires the use of the output end of the first motor to drive the first transmission shaft to rotate, and then the first transmission shaft drives the conveyor belt to rotate, so that the municipal road construction waste placed on the conveyor belt is moved; and then the hydraulic rod drives the sliding block to move in the sliding groove in the second shell, and the sliding block drives the moving rod to move along the movable groove in the second shell, and the moving rod drives the first scraper to move, so that the first scraper can clean up the debris on the filter net, and effectively protect the filter net from being blocked by debris; while the sliding block moves, it drives the magnet to move, and the metal in the crushed municipal road construction waste is adsorbed on the surface of the magnet, so that the municipal road construction waste is convenient to be screened, and when the magnet contacts the second scraper, the second scraper scrapes off the metal adsorbed on the surface of the magnet, thereby achieving the purpose of sorting construction waste.

[0004] However, the above patent has the following defects in actual use: first, the above screening device can play a good role in screening metals with smaller volume or weight, but it cannot achieve the sorting effect when sorting steel bars or alloy rods in reinforced concrete. The reason is that the steel bars are long and heavy. When the device is in a vibrating state, simply using magnets for adsorption cannot guarantee that the steel bars can smoothly follow the movement of the magnet. Moreover, the wet concrete attached to the steel bars will also affect the adsorption effect of the magnet to a certain extent, and the alloy material cannot be adsorbed by the magnet; second, the above screening device requires the use of multiple motors and transmission structures. The overall structure of the device is relatively complex. In actual use, it has high energy consumption and is difficult to maintain, which cannot meet the increasingly high usage needs of enterprises. Summary of the invention

[0005] The purpose of the present invention is to solve the above problems and discloses a road construction waste classification and screening device and screening.

[0006] In order to achieve the above object, the technical solution of the present invention is: In the first aspect, the present invention provides a road construction construction waste classification and screening device, including an outer shell and a debris collection box, a plurality of through holes are provided on the bottom surface of the outer shell, the through holes are connected to the inner cavity of the outer shell, support legs are installed at the four corners of the bottom surface of the outer shell, a delivery port is provided on the top surface of the outer shell, a hopper is installed at the delivery port, a discharge channel is provided on the left side surface of the outer shell, one end of the discharge channel is connected to the inner cavity of the outer shell, and a guide groove is installed at the opening of the other end of the discharge channel, the debris collection box can be placed below the outer shell, a partition is provided in the outer shell, one end of the partition is connected to the outer shell The right side surface of the shell inner cavity is connected, the other end of the partition is connected to the lower edge of the opening at the other end of the discharge channel, one end of the partition is higher than the other end of the partition, a crushing unit is provided under the partition, and a plurality of long holes are provided on the partition. The crushing unit can protrude to the upper surface of the partition through the long holes and crush the reinforced concrete materials on the upper surface of the partition. A traction unit is installed in the discharge channel, and a driving unit is installed on the right side surface of the shell. The driving unit is respectively connected to the crushing unit and the traction unit, and the driving unit can drive the crushing unit and the traction unit to operate at the same time.

[0007] As a further technical solution, the driving unit includes a motor and a transmission shaft, the rotating shaft of the motor is connected to one end of the transmission shaft through a coupling, two driving gears are installed on the transmission shaft, the other end of the transmission shaft extends out of the rear surface of the housing, and a driving wheel is installed on the other end of the transmission shaft. The driving wheel is connected to the traction unit through a transmission belt, and the two driving gears are connected to the crushing unit.

[0008] As a further technical solution, the crushing unit includes two rotating rollers, both of which are located below the partition, the first end of the rotating roller passes through the right side surface of the inner cavity of the shell and extends to the right side of the shell, the second end of the rotating roller is movably connected to the left side surface of the inner cavity of the shell, a driven gear is installed on the first end of the rotating roller, two driving gears are located between the two driven gears, the two driven gears and the two driving gears are in a one-to-one correspondence, the driven gear is meshed with the corresponding driving gear, a number of crushing wheels are equidistantly installed on the rotating roller, the number of crushing wheels and the long hole on one side of the center line of the partition are in a one-to-one correspondence, the diameters of the number of crushing wheels are gradually reduced in order from one end of the rotating roller to the other end, and it is ensured that the upper edges of the number of crushing wheels can pass through the corresponding long holes and protrude from the upper surface of the partition.

[0009] As a further technical solution, the two driving gears rotate counterclockwise following the transmission shaft, and the two driving gears can both shift the driven gears meshing therewith and ensure that the two driven gears rotate in opposite directions.

[0010] As a further technical solution, the two driving gears push the driven gear meshing therewith downward and cause the two rotating rollers to rotate with the plurality of crushing wheels in the direction of the center line of the partition, and the edges of the crushing wheels are provided with a plurality of crushing teeth.

[0011] As a further technical solution, the concrete fragments broken by the crushing teeth can fall onto the bottom surface of the inner cavity of the housing through the gap between the crushing wheel and the edge of the long hole and fall into the fragment collection box through through hole 1.

[0012] As a further technical solution, the traction unit includes a notch, a traction roller 1 and a traction roller 2, the notch is arranged on the lower surface of the discharge channel, the traction roller 1 and the traction roller 2 are installed up and down, one end of the traction roller 1 and the traction roller 2 extends out of the front surface of the shell, and the other end of the traction roller 1 and the traction roller 2 extends out of the rear surface of the shell, and a driven wheel 2 is installed on the traction roller 1 and the traction roller 2, and the driven wheel 2 is connected to the driving wheel through a belt to drive the traction roller 1 and the traction roller 2 to rotate relative to each other.

[0013] As a further technical solution, the traction unit further includes an auxiliary wheel, and the driving wheel is connected to the auxiliary wheel and the driven wheel via a transmission belt to form a closed transmission loop.

[0014] As a further technical solution, the distance between the lower edge of the traction roller 2 and the upper edge of the traction roller 1 matches the size of the steel bar.

[0015] As a further technical solution, the shape of the partition, the shape of the bottom surface of the discharge channel and the shape of the bottom plate match.

[0016] In the second aspect, the present invention further provides a screening method based on the road construction waste classification and screening device, as follows: The reinforced concrete block is put into the hopper, and the reinforced concrete block falls onto the partition through the delivery port, the motor is started, and the driving gear and driving wheel on the transmission shaft respectively drive the two crushing rollers, traction roller one and traction roller two to rotate synchronously, and the reinforced concrete block slides along the inclined partition under the action of gravity, and continuously passes through the crushing wheel during the sliding process of the reinforced concrete block, and the crushing teeth on the crushing wheel continuously crush the concrete block on the steel bar, and the crushed concrete fragments fall onto the bottom surface of the inner cavity of the shell through the gap between the crushing wheel and the edge of the long hole and fall into the fragment collection box through the through hole one; the steel bar will fall to the first port of the discharge channel along the upper surface of the partition under the action of gravity, and the steel bar enters the gap between the traction roller one and the traction roller two under the rotation traction of the traction roller one and falls onto the bottom plate of the guide groove under the joint action of the traction roller one and the traction roller two, and the concrete attached to the surface of the steel bar is crushed by the traction roller one and the traction roller two and falls into the fragment collection box through the through hole two, and the steel bar on the bottom plate is taken away, thereby completing the sorting of the reinforced concrete.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention uses the driving gear and driving wheel on the transmission shaft to simultaneously drive the crushing unit and the traction unit to crush and pull the reinforced concrete under the drive of a motor, so that the steel bars and alloy rods can be well separated from the concrete, and the effect of automatically sorting the metals with large volume and weight can be achieved, which effectively reduces the energy consumption of the sorting work, and at the same time reduces the failure rate and maintenance difficulty of the device operation, which can better meet the use needs of enterprises; 2. This device uses a number of crushing wheels arranged from large to small in diameter in conjunction with inclined partitions to complete the crushing work during the rolling of reinforced concrete, thereby achieving the effect of automatic transportation and crushing of reinforced concrete. There is no need to use a transmission belt, which simplifies the structure of the device and reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view of the road construction waste classification and screening device of the present invention; Figure 2 The present invention Figure 1 The schematic diagram of the partially enlarged structure of the driving unit in the road construction waste classification and screening device shown; Figure 3 The present invention Figure 1 A schematic diagram of the cross-sectional structure of the road construction waste classification and screening device shown (the arrow in the figure indicates the rotation direction of the transmission shaft); Figure 4 The present invention Figure 3 The schematic diagram of the partial enlarged structure of the discharge channel part of the road construction waste classification and screening device shown; Figure 5 The present invention Figure 3 A partial enlarged structural schematic diagram of a driving unit in a road construction waste classification and screening device is shown (the arrow in the figure indicates the rotation direction of the transmission shaft); Figure 6 : is a rear view of the road construction waste classification and screening device of the present invention (the arrows in the figure respectively indicate the rotation directions of the auxiliary wheel, the driven wheel 1 and the driven wheel 2); Figure 7 The present invention Figure 6 A partial enlarged structural schematic diagram of the discharge channel portion of the road construction waste classification and screening device shown in the figure (the arrows in the figure respectively indicate the rotation directions of the auxiliary wheel, the driven wheel 1 and the driven wheel 2); Figure 8 is a schematic diagram of the structure of the drive unit of the present invention on the right side of the housing (the arrows in the figure respectively indicate the rotation directions of the two driven wheels); Fig. 9 It is a schematic diagram of the structure of the partition of the present invention; Fig.10 is a schematic structural diagram of the driving gear of the present invention; Fig.11 is a schematic structural diagram of the driven gear of the present invention; In the figure, 1. shell; 2. crushed material collection box; 3. supporting leg 1; 4. hopper; 5. guide groove; 6. partition; 7. long hole; 8. transmission belt; 9. bracket; 10. motor; 11. transmission shaft; 12. driving gear; 13. driving wheel; 14. rotating roller; 15. driven gear; 16. crushing wheel; 17. notch; 18. traction roller 1; 19. traction roller 2; 20. driven wheel 1; 21. driven wheel 2; 22. auxiliary wheel. DETAILED DESCRIPTION

[0019] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0020] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or their combinations; For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0021] Terminology explanation section: The terms "install", "connect", "connect", "fixed" and the like in the present invention should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements, or an interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0022] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present invention proposes a road construction construction waste classification and screening device.

[0023] The present invention will be described in detail below in conjunction with the accompanying drawings. Figure 1-Figure 11 As shown; the road construction construction waste classification and screening device provided in this embodiment includes a shell 1 and a debris collection box 2. The bottom surface of the shell 1 is provided with a plurality of through holes 1, and the through holes 1 are connected to the inner cavity of the shell 1. The top surface of the shell is provided with a delivery port, and a hopper 4 is installed at the delivery port. A discharge channel is provided on the left side surface of the shell, and one end of the discharge channel is connected to the inner cavity of the shell, and a guide groove 5 is installed at the opening of the other end of the discharge channel. The debris collection box can be placed under the shell, and a partition plate 6 is provided in the shell 1. The first end of the partition plate 6 is connected to the right side surface of the inner cavity of the shell. The second end of the partition 6 is connected to the lower edge of the opening at the other end of the discharge channel, the first end of the partition 6 is higher than the second end of the partition, a crushing unit is provided below the partition 6, and a plurality of long holes are provided on the partition 6. The crushing unit can protrude to the upper surface of the partition through the long holes and crush the reinforced concrete materials on the upper surface of the partition, a traction unit is installed in the discharge channel, and a driving unit is installed on the right side surface of the outer shell 1, and the driving unit is respectively connected to the crushing unit and the traction unit, and the driving unit can drive the crushing unit and the traction unit to operate at the same time.

[0024] The present invention, driven by a motor, utilizes the driving gear and the driving wheel on the transmission shaft to simultaneously drive the crushing unit and the traction unit to crush and pull the reinforced concrete, so that the steel bars and alloy rods can be well separated from the concrete, and the effect of automatically sorting metals with large volume and weight is achieved, which effectively reduces the energy consumption of the sorting work, and at the same time reduces the failure rate and maintenance difficulty of the device operation, and can better meet the use needs of enterprises.

[0025] The structure of each part is as follows: like Figure 1 As shown, the shell 1 is a box body in the shape of a right-angled trapezoid, the top surface of the shell 1 and the bottom surface of the shell 1 are both planes, a plurality of through holes 1 are arranged on the bottom surface of the shell 1, and the through holes 1 are connected to the inner cavity of the shell 1, the front surface of the shell 1, the rear surface of the shell 1 and the right side surface of the shell 1 are high vertical surfaces, the upper edges of the three high vertical surfaces are respectively connected to the three side edges of the top surface, and the lower edges of the three high vertical surfaces are respectively connected to the three side edges of the bottom surface, and a door is arranged on the right side surface of the shell 1, and the door can be opened to facilitate the cleaning of the bottom surface of the inner cavity of the shell 1, and the left side surface of the shell 1 includes an inclined surface and a short vertical surface, the inclined surface is located above the short vertical surface, the upper edge of the inclined surface is connected to the last edge of the top surface, the lower edge of the inclined surface is connected to the upper edge of the short vertical surface, and the lower edge of the short vertical surface is connected to the last edge of the bottom surface, and support legs 1 3 are installed at the four corners of the bottom surface of the shell 1, and a delivery port is arranged on the top surface of the shell 1, and the delivery port is used to deliver reinforced concrete materials, and a hopper 4 is installed at the delivery port.

[0026] Further, such as Figure 1 , Figure 3 As shown, a discharge channel is provided on the short vertical surface of the shell 1, one end of the discharge channel is connected with the inner cavity of the shell 1 through the short vertical surface, the discharge channel is a rectangular channel, and a guide groove 5 is installed at the opening of the other end of the discharge channel. The guide groove 5 is a long groove with a "concave" cross-section formed by splicing two side panels and a bottom panel. The bottom panel and the two side panels are long strips and have the same length. The length direction of the two side panels is consistent with the length direction of the bottom panel. The two side panels are parallel to each other and perpendicular to the bottom panel. The lower edges of the two side panels are respectively connected to the bottom panel. The two side edges of the bottom plate are connected, the size of one end of the guide groove 5 matches the size of the discharge channel, one side of the bottom plate is butted against the bottom edge of the discharge channel, a plurality of through holes 2 are provided on the bottom plate, the through holes 2 connect the upper surface and the lower surface of the bottom plate, one side of the two side plates are respectively butted against the two side edges of the discharge channel, the guide groove is used to receive the material discharged from the discharge channel, the scrap collection box 2 is a rectangular box with an open upper end, the size of the scrap collection box 2 matches the size of the bottom surface of the outer shell 1 and ensures that the scrap collection box 2 can be placed below the outer shell 1.

[0027] Further, such as Figure 3As shown, a partition 6 is provided in the housing 1, and the partition 6 is tilted, the first end of the partition 6 is connected to the right side of the inner cavity of the housing 1, the first end of the partition 6 is close to the delivery port, the first end of the partition 6 can receive the reinforced concrete material dropped from the delivery port, the second end of the partition 6 is connected to the lower edge of the opening at the other end of the discharge channel, the first end of the partition 6 is higher than the second end of the partition 6, the center line of the partition 6 is from the first end of the partition 6 to the second end of the partition 6, a crushing unit is provided below the partition 6, and a plurality of long holes 7 are provided on the partition 6 (see for details) Fig. 9 ), the long hole 7 is in the shape of a long strip, and a plurality of long holes 7 are symmetrically distributed on both sides of the center line of the partition 6 (in the present embodiment, six long holes 7 are arranged on each side), and the length directions of the plurality of long holes 7 are perpendicular to the length direction of the center line of the partition 6, and the crushing unit can protrude to the upper surface of the partition 6 through the long hole 7 and crush the reinforced concrete material on the upper surface of the partition 6, and a traction unit is installed in the discharge channel, and the traction unit is close to the other end opening of the discharge channel, and the traction unit can pull the steel bars at the second end of the partition 6 into the guide groove 5, and a driving unit is installed on the right side surface of the outer shell 1, and the driving unit is respectively connected to the crushing unit and the traction unit, and the driving unit can drive the crushing unit and the traction unit to move at the same time.

[0028] It should be noted that, further, Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the driving unit comprises a bracket 9 mounted on the right side of the housing 1, a motor 10 and a transmission shaft 11 are mounted on the bracket 9, the length direction of the transmission shaft 11 is parallel to the right side and bottom of the housing 1, the motor 10 is close to the front surface of the housing 1, the rotating shaft of the motor 10 is connected to one end of the transmission shaft 11 through a coupling, and two driving gears 12 are mounted on the transmission shaft 11 (see the driving gear 12 Fig.10 ), the planes where the two driving gears 12 are located are perpendicular to the right side surface of the shell 1, the other end of the transmission shaft 11 extends out of the rear surface of the shell 1, and a driving wheel 13 is installed on the other end of the transmission shaft 11. The motor 10 can drive the transmission shaft 11 to rotate synchronously with the driving wheel 13 and the two driving gears 12. The driving wheel 13 is connected to the traction unit through the transmission belt 8 and drives the traction unit to perform the traction action. The two driving gears are connected to the crushing unit and drive the crushing unit to crush the reinforced concrete material on the upper surface of the partition 6 by rotation.

[0029] It should be noted that, further, the crushing unit includes two rotating rollers 14, the length directions of the two rotating rollers 14 are parallel to each other, the two rotating rollers 14 are both located below the partition 6, the two rotating rollers 14 are both parallel to the bottom surface of the inner cavity of the shell 1, the two rotating rollers 14 are respectively located on both sides of the center line of the partition 6, one end of the rotating roller 14 passes through the right side surface of the inner cavity of the shell 1 and extends to the right side of the shell 1, the other end of the rotating roller 14 is movably connected to the left side surface of the inner cavity of the shell 1, the rotating roller 14 can rotate in the shell 1, and a driven gear 15 (driven gear 15 see Fig.11 ), the plane where the driven gear 15 is located is parallel to the right side of the housing 1, the two driving gears 12 are located between the two driven gears 15, the two driven gears 15 and the two driving gears 12 are in a one-to-one correspondence, the driven gear 15 and the corresponding driving gear 12 are meshed, a number of crushing wheels 16 are installed at equal distances on the rotating roller 14, the number of crushing wheels 16 and the long hole 7 on one side of the center line of the partition 6 are in a one-to-one correspondence, the number of crushing wheels 16 are arranged at equal distances along the length direction of the rotating roller 14, the diameters of the number of crushing wheels 16 are gradually reduced from one end of the rotating roller 14 to the other end, and it is ensured that the upper edges of the number of crushing wheels 16 can pass through the corresponding long hole 7 and protrude from the upper surface of the partition 6. This device uses the method of arranging the diameters of the crushing wheels from large to small in combination with the inclined partition to complete the crushing work during the rolling of reinforced concrete, thereby achieving the effect of automatic transportation and crushing of reinforced concrete, without the need for a transmission belt, simplifying the structure of the device, and reducing the production and manufacturing cost.

[0030] Among them, the two driving gears 12 rotate counterclockwise following the transmission shaft 11, and the two driving gears 12 can both shift the driven gears 15 meshing therewith and ensure that the two driven gears 15 rotate in opposite directions, that is, when one driven gear 15 rotates counterclockwise, the other driven gear 15 rotates clockwise, and the two driving gears 12 both shift the driven gears 15 meshing therewith downward and prompt the two rotating rollers 14 to rotate with the plurality of crushing wheels 16 in the direction of the center line of the partition 6, and the edge of the crushing wheel 16 is provided with a plurality of crushing teeth, and the plurality of crushing teeth are arranged equidistantly along the edge of the crushing wheel 16, and the crushing teeth are pyramidal, and the tip of the crushing teeth points to the outside of the crushing wheel 16, and the concrete fragments broken by the crushing teeth can fall through the gap between the crushing wheel 16 and the edge of the long hole 7 to the bottom surface of the inner cavity of the shell 1 and fall into the crushed material collection box 2 through the through hole 1, and the sizes of the plurality of long holes 7 are the same, and the sizes of the plurality of long holes 7 match the size of the crushing wheel 16 with the largest diameter.

[0031] It should be noted that the traction unit includes a notch 17, a traction roller 18 and a traction roller 2 19. The notch 17 is arranged on the lower surface of the discharge channel. The shape of the notch 17 is L-shaped. The vertical surface of the notch 17 is connected with the lower surface of the discharge channel. The transverse surface of the notch 17 is connected with one end surface of the discharge channel. The connecting edge of the transverse surface of the notch 17 and one end surface of the discharge channel is the bottom edge of the discharge channel. The size of the notch 17 matches the size of the traction roller 18. The traction roller 18 is embedded in the notch 17 and can rotate in the notch 17. The traction roller 18 is close to the vertical surface of the notch 17, the upper edge of the traction roller 18 is exposed to the bottom surface of the discharge channel, one end of the traction roller 18 extends out of the front surface of the shell 1, and the other end of the traction roller 18 extends out of the rear surface of the shell 1, and the other end of the traction roller 18 is installed with a driven wheel 20, and the traction roller 2 19 is installed on the top surface of the discharge channel, the lower edge of the traction roller 2 19 is close to the upper edge of the traction roller 18, one end of the traction roller 2 19 extends out of the front surface of the shell 1, and the other end of the traction roller 2 19 extends out of the shell 1 The rear surface of the traction roller is provided with a driven wheel 21 at the other end, and an auxiliary wheel 22 is provided on the rear surface of the housing 1. The auxiliary wheel 22 is located above the driven wheel 21. The transmission belt 8 starts from the lower edge of the driving wheel 13, passes through the rear edge of the driven wheel 21, then bypasses the front edge of the driven wheel 1 20, passes through the rear edge of the auxiliary wheel 22, reaches the lower edge of the auxiliary wheel 22, and then passes through the upper edge of the driving wheel 13 from the lower edge of the auxiliary wheel 22 to the lower edge of the driving wheel 13 to form a closed transmission loop. The driving wheel 1 3. The edges of the driven wheel 1 20, the driven wheel 21 and the auxiliary wheel 22 close to the right side of the shell 1 are their front edges, and the edges of the driving wheel 13, the driven wheel 1 20, the driven wheel 21 and the auxiliary wheel 22 close to the left side of the shell 1 are their rear edges. When the driving wheel 13 rotates counterclockwise, it can drive the traction roller 18 and the traction roller 2 19 to rotate relative to each other through the driven wheel 1 20 and the driven wheel 2 21. The traction roller 18 and the traction roller 2 19 pull the steel bars from the partition 6 to the floor of the guide groove 5 during the relative rotation.

[0032] Among them, the distance between the lower edge of the traction roller 19 and the upper edge of the traction roller 1 18 matches the size of the steel bar. When the traction rollers 1 18 and 19 are pulling the steel bar, the traction rollers 1 18 and 19 can squeeze the small concrete blocks attached to the steel bar into fragments. Under the action of gravity, the concrete fragments roll through the vertical and horizontal surfaces of the notch 17 to the bottom plate of the guide groove 5 and fall into the fragment collection box 2 through the through hole 2 on the bottom plate.

[0033] During the implementation of the technical solution of the present invention, the shape of the partition 6, the shape of the bottom surface of the discharge channel and the shape of the bottom plate match, the partition 6 and the bottom plate are both flat plates, and the bottom surface of the discharge channel is a plane; or the partition 6 and the bottom plate are both arc-shaped plates, the bottom surface of the discharge channel is an arc-shaped surface, and the curvature of the partition 6, the curvature of the bottom surface of the discharge channel and the curvature of the bottom plate match; in addition, two support legs 2 are installed on the other side of the bottom plate, and the two support legs 2 support the ground. The height of the support legs 2 matches the height of the debris collection box 2 and ensures that one end of the debris collection box 2 can pass under the bottom plate.

[0034] The electronic devices used in this technical solution are all existing products, and the technical solution of the present invention has no special requirements or changes to the structure of the above electronic devices; During the implementation of this technical solution, those skilled in the art need to connect all electrical components in this case to their adapted power supplies through wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle of this technical solution and the working sequence between the electrical components. The detailed connection means are well-known technologies in this field. This technical solution mainly introduces the working principle and process, and no longer explains the electrical control.

[0035] The method for classifying and screening construction waste by the above-mentioned road construction construction waste classification and screening device is as follows: During the implementation process, The staff puts the reinforced concrete block into the hopper 4, and the reinforced concrete block falls onto the partition 6 through the delivery port. At this time, the motor 10 starts, and the driving gear 12 and the driving wheel 13 on the transmission shaft 11 respectively drive the two crushing rollers, the traction roller 18 and the traction roller 2 19 to rotate synchronously. The reinforced concrete block slides along the inclined partition 6 under the action of gravity. During the sliding process of the reinforced concrete block, it continuously passes through the crushing wheel 16. The crushing teeth on the crushing wheel 16 continuously crush the concrete block on the steel bar. The crushed concrete fragments fall onto the bottom surface of the inner cavity of the shell 1 through the gap between the crushing wheel 16 and the edge of the long hole 7 and fall into the fragment collection box 2 through the through hole 1. Since the steel bars cannot pass through the gap, they will fall to the first end of the discharge channel along the upper surface of the partition 6 under the action of gravity. The steel bars enter the gap between the traction roller 18 and the traction roller 2 19 under the rotation and traction of the traction roller 18 and fall to the bottom plate of the guide groove 5 under the joint action of the traction roller 18 and the traction roller 2 19. The concrete attached to the surface of the steel bars is crushed by the traction roller 18 and the traction roller 2 19 and falls into the debris collection box 2 through the through hole 2. The staff will take away the steel bars on the bottom plate, thereby completing the sorting of reinforced concrete.

[0036] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A road construction waste classification and screening device, comprising a shell and a debris collection box, wherein a plurality of through holes are provided on the bottom surface of the shell, wherein the through holes are communicated with the inner cavity of the shell, a delivery port is provided on the top surface of the shell, a hopper is installed at the delivery port, a discharge channel is provided on the left side surface of the shell, one end of the discharge channel is communicated with the inner cavity of the shell, a guide groove is installed at the opening of the other end of the discharge channel, and the debris collection box can be placed below the shell, characterized in that: A partition is provided in the outer shell, the first end of the partition is connected to the right side surface of the inner cavity of the outer shell, the second end of the partition is connected to the lower edge of the opening at the other end of the discharge channel, the first end of the partition is higher than the second end of the partition, a crushing unit is provided below the partition, a plurality of long holes are provided on the partition, the crushing unit can protrude to the upper surface of the partition through the long holes and crush the reinforced concrete materials on the upper surface of the partition, a traction unit is installed in the discharge channel, and a driving unit is installed on the right side surface of the outer shell, the driving unit is respectively connected to the crushing unit and the traction unit, and the driving unit can drive the crushing unit and the traction unit to operate at the same time.

2. The road construction waste classification and screening device according to claim 1 is characterized in that: The driving unit includes a motor and a transmission shaft, the rotating shaft of the motor is connected to one end of the transmission shaft through a coupling, two driving gears are installed on the transmission shaft, the other end of the transmission shaft extends out of the rear surface of the shell, a driving wheel is installed on the other end of the transmission shaft, the driving wheel is connected to the traction unit through a transmission belt, and the two driving gears are connected to the crushing unit.

3. The road construction waste classification and screening device according to claim 2 is characterized in that: The crushing unit includes two rotating rollers, both of which are located below the partition, the first end of the rotating roller passes through the right side surface of the inner cavity of the shell and extends to the right side of the shell, the second end of the rotating roller is movably connected to the left side surface of the inner cavity of the shell, a driven gear is installed on the first end of each rotating roller, two driving gears are located between the two driven gears, the two driven gears and the two driving gears are in a one-to-one correspondence, the driven gears are meshed with the corresponding driving gears, a number of crushing wheels are equidistantly installed on the rotating roller, the number of crushing wheels and the long holes on one side of the center line of the partition are in a one-to-one correspondence, the diameters of the number of crushing wheels are gradually reduced in order from one end of the rotating roller to the other end, and it is ensured that the upper edges of the number of crushing wheels can pass through the corresponding long holes and protrude from the upper surface of the partition.

4. The road construction waste classification and screening device according to claim 3 is characterized in that: The two driving gears rotate counterclockwise following the transmission shaft, and the two driving gears can both shift the driven gears meshing therewith and ensure that the two driven gears rotate in opposite directions.

5. The road construction waste classification and screening device according to claim 4 is characterized in that: The two driving gears both push the driven gear meshing therewith downwards and prompt the two rotating rollers to rotate with the plurality of crushing wheels in the direction where the center line of the partition is located. The edges of the crushing wheels are provided with a plurality of crushing teeth.

6. The road construction waste classification and screening device according to claim 5 is characterized in that: The concrete fragments broken by the crushing teeth can fall onto the bottom surface of the inner cavity of the housing through the gap between the crushing wheel and the edge of the long hole and fall into the fragment collection box through the through hole 1.

7. The road construction waste classification and screening device according to claim 2 is characterized in that: The traction unit includes a notch, a traction roller 1 and a traction roller 2, wherein the notch is arranged on the lower surface of the discharge channel, and the traction roller 1 and the traction roller 2 are installed up and down, one end of the traction roller 1 and the traction roller 2 extends out of the front surface of the shell, and the other end of the traction roller 1 and the traction roller 2 extends out of the rear surface of the shell, and a driven wheel 2 is installed on the traction roller 1 and the traction roller 2, and the driven wheel 2 is connected to the driving wheel through a belt to drive the traction roller 1 and the traction roller 2 to rotate relative to each other.

8. The road construction waste classification and screening device according to claim 7 is characterized in that: It also includes an auxiliary wheel, and the driving wheel is connected to the auxiliary wheel and the driven wheel through a transmission belt to form a closed transmission loop.

9. The road construction waste classification and screening device according to claim 7 is characterized in that: The distance between the lower edge of the traction roller 2 and the upper edge of the traction roller 1 matches the size of the steel bar.

10. The screening method of the road construction waste classification and screening device according to any one of claims 1 to 9, characterized in that: Put the reinforced concrete block into the hopper, and the reinforced concrete block falls onto the partition through the delivery port. The motor starts, and the driving gear and driving wheel on the transmission shaft respectively drive the two crushing rollers, the traction roller 1 and the traction roller 2 to rotate synchronously. The reinforced concrete block slides along the inclined partition under the action of gravity. During the sliding process of the reinforced concrete block, it continuously passes through the crushing wheel. The crushing teeth on the crushing wheel continuously crush the concrete block on the steel bar. The crushed concrete fragments fall onto the bottom surface of the inner cavity of the shell through the gap between the crushing wheel and the edge of the long hole and fall into the crushed material collection box through the through hole 1. The steel bars will fall to one end of the discharge channel along the upper surface of the partition under the action of gravity. The steel bars will enter the gap between the traction rollers 1 and 2 under the traction of the traction rollers 1 and 2 and fall to the bottom plate of the guide groove under the joint action of the traction rollers 1 and 2. The concrete attached to the surface of the steel bars will be crushed by the traction rollers 1 and 2 and fall into the crushed material collection box through the through hole 2. The steel bars on the bottom plate will be taken away, thereby completing the sorting of reinforced concrete.

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