Reclaimed material treatment equipment for highway construction

Abstract

The invention discloses reworked material treatment equipment for highway construction, and relates to the technical field of reworked material treatment, the reworked material treatment equipment comprises a crushing chamber and a screening chamber, the crushing chamber is arranged above the screening chamber, and the crushing chamber and the screening chamber are communicated through a discharging channel; a screening frame for conducting multi-layer screening on crushed materials and a collecting frame for collecting finest materials are arranged in the screening chamber, and a driving mechanism for driving the screening frame and the collecting frame to reciprocate in the horizontal direction is arranged in the screening chamber. According to the reclaimed material treatment equipment for highway construction, reciprocating motion of the screening frame and reciprocating rotation of the material guide plate are linked through the transmission part, an additional power source is not needed, the screening frame synchronously drives the material guide plate to rotate when moving, small-amount and multiple-time conveying of materials and dynamic adjustment of the discharging direction are achieved, the materials are effectively prevented from being accumulated in a discharging channel, and the working efficiency is improved. Local overload blockage of the screen is prevented, and screening continuity and efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of recycled material processing technology, specifically to a recycled material processing device for highway construction. Background Technology

[0002] Highway construction and maintenance are core components of ensuring smooth transportation networks, generating a large amount of construction waste such as waste asphalt mixtures, concrete blocks, and gravel residue. With the continuous increase in my country's highway mileage and the approaching maintenance cycles of existing highways, the amount of this construction waste is increasing year by year. Direct landfilling or disposal not only occupies significant land resources but also causes long-term pollution to soil, water, and air due to the difficulty in natural degradation of components like asphalt and concrete. Against this backdrop, recycling this construction waste into recycled materials for reuse in highway subgrade, pavement base, and slope protection projects has become a key path for practicing green and low-carbon development and promoting sustainable highway construction. This resource utilization method not only effectively utilizes construction waste, reduces the consumption of primary mineral resources (such as sand, gravel, and asphalt), and alleviates the cost pressures caused by resource shortages, but also reduces carbon emissions and environmental pollution risks by minimizing waste transportation and landfilling. It offers significant economic, social, and ecological benefits and has become the mainstream development direction in the highway construction field.

[0003] The resource utilization of recycled materials requires key processes such as crushing and screening, with the efficiency and precision of the screening process directly determining the quality grade of the recycled materials. Currently, recycled material processing equipment used in highway construction faces several pressing problems in practical application: First, the material feeding process lacks effective control, easily leading to excessively rapid feeding or concentrated accumulation, resulting in uneven screening load and affecting grading effects; second, uneven material distribution on the screen surface during screening, with excessively thick material accumulation in some areas, not only reducing screening efficiency but also easily causing screen blockage and increasing maintenance frequency; third, the separation effect of recycled materials of different particle sizes is poor, resulting in material mixing, making it difficult to meet the precise particle size requirements of recycled materials in different engineering parts such as subgrade and pavement base layers. These problems limit the efficiency and quality of recycled material processing, hindering the large-scale application of recycled materials in highway construction.

[0004] Therefore, the present invention provides a recycled material processing device for highway construction to solve the problems mentioned above. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a recycled material processing device for highway construction, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a recycled material processing device for highway construction, comprising a crushing chamber and a screening chamber, wherein the crushing chamber is located above the screening chamber and the two are connected by a feeding channel; the screening chamber is provided with a screening frame for multi-layer screening of the crushed material and a collection frame for collecting the finest material; and the screening chamber is provided with a driving mechanism for reciprocating the screening frame and the collection frame in the horizontal direction.

[0007] The material feeding channel is equipped with a rotating shaft inside, and a guide plate is provided on the outer surface of the rotating shaft to guide the falling material. During the movement of the screening frame, the guide plate is driven to rotate back and forth by a transmission component.

[0008] Preferably, the crushing chamber is equipped with a crushing mechanism for crushing materials, and a feed hopper is fixedly installed on the top of the crushing chamber.

[0009] Preferably, a base is fixedly installed inside the screening chamber, and a support frame one and a support frame two are slidably installed on the base from left to right. The collection frame is installed on the support frame one and the support frame two, and the screening frames are stacked, with the bottom screening frame placed on the collection frame.

[0010] Preferably, a limiting frame is fixedly provided on the side of the support frame one away from the support frame two, the limiting frame is fitted to the outer side of the collection frame, and the support frame two is provided with a support roller for supporting the collection frame.

[0011] Preferably, connecting blocks are fixedly provided on both the front and rear sides of the collection frame, and a stop block is slidably provided inside the support frame one. The stop block abuts against the side of the connecting block near the support frame two, and a limit spring is fixedly provided between the stop block and the inner wall of the support frame one.

[0012] Preferably, guide blocks are fixedly provided on both the front and rear sides of the screening frame. A guide groove is provided on the side of the second support frame away from the first support frame. The side of the guide groove close to the first support frame is sealed. The guide block is inserted into the guide groove and engaged with its inner wall. A limit plate is slidably provided on the second support frame on the opening side of the guide groove. A positioning screw is threaded through the limit plate. One end of the positioning screw extends into the interior of the second support frame and is threadedly connected to its inner wall.

[0013] Preferably, the driving mechanism includes driving blocks symmetrically slidably disposed on the base. Support frame one and support frame two are respectively fixedly disposed on the top of the two driving blocks. A positioning rod is fixedly disposed inside the base. The positioning rod passes through the driving block and is slidably disposed with its inner surface. A driving motor is fixedly disposed on the outer side of one of the driving blocks. A driving shaft is fixedly disposed on the output shaft of the driving motor through a coupling. A driving disk is fixedly disposed at the end of the driving shaft. The driving shaft and the edge of the driving disk are fixedly disposed. The driving disk is rotatably connected to the other driving block through a driving rod.

[0014] Preferably, a connecting elastic element is fixedly provided between the opposite sides of the two drive blocks and the inner wall of the base.

[0015] Preferably, the transmission component includes a transmission rod fixedly mounted on the top of the support frame two, the end of the rotating shaft extends to the outside of the feeding channel and is fixedly mounted with a transmission gear, and one section of the transmission rod is provided with serrations and meshes with the transmission gear.

[0016] Beneficial effects

[0017] This invention provides a recycled material processing device for highway construction. Compared with the prior art, it has the following advantages:

[0018] (1) The recycled material processing equipment for highway construction links the reciprocating motion of the screening frame with the reciprocating rotation of the guide plate through the transmission component. No additional power source is required. When the screening frame moves, it drives the guide plate to rotate synchronously, realizing the small-batch and multiple conveying of materials and dynamic adjustment of the feeding direction. This effectively avoids the accumulation of materials in the feeding channel, prevents local overload and blockage of the screen, and improves the continuity and efficiency of screening.

[0019] (2) The recycling equipment for highway construction uses a limit frame, a stop block and a limit spring to quickly position and fix the collection frame. The screening frame is locked by the guide block and the guide groove, combined with the limit plate and the positioning screw. The installation and disassembly process is simple and efficient, which facilitates subsequent material cleaning and screen replacement. The design of the support roller reduces the friction when the collection frame moves, reduces the wear of parts and extends the service life of the equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the external structure provided by the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure provided by the present invention;

[0022] Figure 3 A schematic diagram of the internal structure of the screening chamber provided by the present invention;

[0023] Figure 4This is a schematic diagram illustrating the installation of the collection frame and the filtering frame provided by the present invention;

[0024] Figure 5 A schematic diagram of the driving mechanism provided by the present invention;

[0025] Figure 6 This is a schematic diagram of the limiting plate structure provided by the present invention;

[0026] Figure 7 Provided by the present invention Figure 6 Enlarged diagram of point A in the diagram;

[0027] Figure 8 This is a schematic diagram of the transmission component structure of the present invention.

[0028] In the diagram: 1-Crushing chamber, 2-Screening chamber, 3-Feeding channel, 4-Screening frame, 401-Guide block, 5-Collection frame, 501-Connecting block, 6-Drive mechanism, 601-Drive block, 602-Positioning rod, 603-Drive motor, 604-Drive shaft, 605-Drive disc, 606-Drive rod, 607-Connecting elastic element, 7-Rotating shaft, 8-Guide plate, 9-Transmission component, 901-Transmission rod, 902-Transmission gear, 903-Saw tooth, 10-Pulverizing mechanism, 11-Feeding hopper, 12-Base, 13-Support frame one, 14-Support frame two, 1401-Support roller, 1402-Guide groove, 15-Limiting frame, 16-Stop block, 17-Limiting spring, 18-Limiting plate, 19-Positioning screw. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1-8This invention provides a technical solution: a recycled material processing equipment for highway construction, including a crushing chamber 1 and a screening chamber 2. The screening chamber 2 has an inspection door on its side, equipped with sealing strips and a safety lock to prevent dust leakage and personnel misoperation. The crushing chamber 1 is located above the screening chamber 2, and the two are connected by a feeding channel 3, which facilitates the smooth transport of crushed materials. Polished inner walls reduce material adhesion, prevent channel blockage, ensure continuous material entry into the screening stage, and improve overall processing efficiency. The crushing chamber 1 is equipped with a crushing mechanism 10 for crushing materials. The crushing mechanism 10 adopts a twin-shaft crusher structure, with twin-shaft rotors and hard alloy crushing teeth. Through high-speed rotation, it squeezes and shears the recycled material (concrete blocks, asphalt blocks, etc.), crushing large pieces of recycled material to a particle size that meets screening requirements. The top of the crushing chamber 1 is connected to and fixedly installed with a feed hopper 11; the inside of the discharge channel 3 is equipped with a rotating shaft 7, and the outer surface of the rotating shaft 7 is equipped with a guide plate 8 to guide the falling material. During the movement of the screening frame 4, the guide plate 8 is driven to rotate back and forth by the transmission component 9.

[0031] To explain, the number of guide plates 8 is even and they are evenly distributed. When any two symmetrical guide plates 8 are in a horizontal state, their ends are just in contact with the inner wall of the feeding channel 3, and feeding stops at this time.

[0032] The screening chamber 2 is equipped with a screening frame 4 for multi-level screening of crushed materials. The aperture of the screening frame 4 decreases from top to bottom. The multi-level stacking design can complete multi-level screening at one time. There is also a collection frame 5 for collecting the finest materials. The collection frame 5 is specifically designed to collect the finest recycled materials to prevent fine materials from scattering. The screening chamber 2 is also equipped with a drive mechanism 6 that drives the screening frame 4 and the collection frame 5 to reciprocate in the horizontal direction.

[0033] Regarding the installation design of the collection frame 5, a base 12 is fixedly installed inside the screening chamber 2. Support frame 13 and support frame 2 14 are slidably installed on the base 12 from left to right. Both support frame 13 and support frame 2 14 are U-shaped and their inner walls are fitted to the outer side of the collection frame 5. The collection frame 5 is installed on support frame 13 and support frame 2 14, and the screening frames 4 are stacked, with the bottom screening frame 4 placed on the collection frame 5.

[0034] As a further technical solution, a limiting frame 15 is fixedly installed on the side of the support frame 13 away from the support frame 2 14. The limiting frame 15 is fitted to the outer side of the collection frame 5. The limiting frame 15 laterally limits the collection frame 5 to prevent the collection frame 5 from shifting laterally during reciprocating motion, ensuring that the collection frame 5 is always in the correct screening position and guaranteeing screening accuracy. The support frame 2 14 is provided with a support roller 1401 for supporting the collection frame 5. The support roller 1401 reduces the friction when the collection frame moves, making the reciprocating motion smoother.

[0035] Regarding the limiting design of the collection frame 5, connecting blocks 501 are fixedly installed on both the front and rear sides of the collection frame 5. The lower surface of the connecting block 501 is fitted against the upper surface of the support frame 113, and the bottom of the collection frame 5 is fitted against the inner bottom wall of the support frame 13. A stop block 16 is slidably installed inside the support frame 13. The stop block 16 abuts against the side of the connecting block 501 near the support frame 14. A limiting spring 17 is fixedly installed between the stop block 16 and the inner wall of the support frame 13. The elastic coefficient of the limiting spring 17 can be set according to requirements. When the limiting spring 17 is in its original length state, it pushes the stop block 16 to move out of the support frame 13. The side of the stop block 16 near the second support frame 14 is designed with a slope, and the lowest point of the slope is flush with the top of the first support frame 13. This allows the collection frame 5 to be placed on the second support frame 14 first, and then the collection frame 5 to be pushed horizontally to move towards the side of the first support frame 13 until the connecting block 501 contacts the slope of the stop block 16 and presses down on the stop block 16. When the collection frame 5 moves to the point where one side of it abuts against the inner surface of the limiting frame 15, the connecting block 501 and the stop block 16 are misaligned. Under the action of the limiting spring 17, the stop block 16 is pushed out of the first support frame 13 and abuts against one side of the connecting block 501. At this time, the collection frame 5 is limited between the limiting frame 15 and the stop block 16 and cannot move in the horizontal direction.

[0036] Regarding the limiting design of the screening frame 4, guide blocks 401 are fixedly installed on both the front and rear sides of the screening frame 4. A guide groove 1402 is opened on the side of the support frame 2 14 away from the support frame 1 13. The side of the guide groove 1402 near the support frame 1 13 is sealed. The guide block 401 is inserted into the guide groove 1402 and engaged with its inner wall. Through the coordinated design of the guide block 401 and the guide groove 1402, the movement direction of the screening frame 4 is limited. A limiting plate 18 is slidably installed on the opening side of the guide groove 1402 on the support frame 2 14. A positioning screw 19 is threaded through the limiting plate 18. One end of the positioning screw 19 extends into the interior of the support frame 2 14 and is threadedly connected to its inner wall. Place one side of the screening frame 4 on the upper surface of the collection frame 5, and then push the screening frame 4 to move horizontally along the top of the collection frame 5 until the guide block 401 is inserted into the inside of the guide groove 1402 and abuts against its inner wall. Then rotate the positioning screw 19 to drive the limiting plate 18 to move closer to the screening frame 4 until the limiting plate 18 seals the opening of the guide groove 1402. At this point, the installation and limiting operation of the screening frame 4 is completed.

[0037] To explain, the bottom two sides of the bottom of the bottom filter box 4 are embedded with ball bearings, and the ball bearings are in contact with the upper surface of the collection box 5, thereby effectively reducing the friction between the bottom filter box 4 and the collection box 5, making its movement smoother.

[0038] Regarding the design of the drive mechanism 6, the drive mechanism 6 includes drive blocks 601 symmetrically slidably mounted on the base 12. Connecting elastic elements 607 are fixedly mounted between the opposite sides of the two drive blocks 601 and the inner wall of the base 12. The connecting elastic elements 607 are elastic components such as springs, and their elastic coefficients can be set according to requirements. The elastic coefficients and other parameters of the two connecting elastic elements 607 are identical. Support frame one 13 and support frame two 14 are respectively fixedly mounted on the tops of the two drive blocks 601. The movement of the drive blocks 601 drives the movement of support frame one 13 and support frame two 14. A positioning rod 602 is fixedly mounted inside the base 12. The positioning rod 602 passes through the drive block 601 and slides along its inner surface. The connecting elastic elements 607 are sleeved on the outer surface of the positioning rod 602. The positioning rod 602 further improves the stability of the drive block 601 during movement. A drive motor 603 is fixedly mounted on the outer side of one of the drive blocks 601. The drive motor 603 is a variable frequency speed control motor (model YVP200L-4) to adapt to different screening speed requirements. The output shaft of the drive motor 603 is fixedly mounted with a drive shaft 604 via a coupling. The drive shaft 604 passes through the drive block 601 and is rotatably mounted on its inner surface. A drive disc 605 is fixedly mounted at the end of the drive shaft 604. The drive shaft 604 and the drive disc 605 are fixedly mounted at their edges to form an eccentric structure. The drive disc 605 is rotatably connected to the other drive block 601 via a drive rod 606, which is rotatably mounted at the edge of the drive disc 605.

[0039] By starting the drive motor 603, the drive shaft 604 is driven to rotate. The drive shaft 604 drives the drive disc 605 to rotate around the axis of the drive shaft 604. During the rotation of the drive disc 605, the drive rod 606 pulls or pushes another drive block 601 to move back and forth in the horizontal direction. Since both drive blocks 601 are slidably set with the base 12 and are connected to the base 12 through the connecting elastic element 607 with the same parameters, when one drive block 601 moves back and forth, it drives the other drive block 601 to move in the same direction. The two drive blocks 601 move in opposite directions. When the drive blocks 601 move, they drive the support frame 13 and the support frame 2 14 to move synchronously. This causes the support frame 13 to move the collection frame 5 and the support frame 2 14 to move the screening frame 4. As a result, the screening frame 4 and the collection frame 5 move synchronously relative to each other or in opposite directions in the horizontal direction. This effectively prevents the screen holes on the screening frame 4 from being blocked and improves the screening efficiency. At the same time, it can also shake the material in the collection frame 5 and the screening frame 4 to prevent it from accumulating and affecting the screening effect.

[0040] Regarding the design of the transmission component 9, it includes a transmission rod 901 fixedly mounted on the top of the support frame 14. The end of the rotating shaft 7 extends to the outside of the material feeding channel 3 and is fixedly mounted with a transmission gear 902. One section of the transmission rod 901 has serrations 903 that mesh with the transmission gear 902. When the support frame 14 moves, it synchronously drives the transmission rod 901 to move, causing the transmission rod 901 to drive the transmission gear 902 to rotate via the serrations 903. The transmission gear 902 rotates synchronously via the conductive guide plate 8 of the rotating shaft 7. During rotation, the guide plate 8 can only release material from two adjacent guide plates 8 at a time, thus conveying the material in small quantities multiple times, effectively preventing excessively rapid material feeding and accumulation. Simultaneously, the reciprocating movement of the support frame 14 drives the rotating shaft 7 to reciprocate, thereby driving the guide plate 8 to reciprocate, changing the material feeding direction and further improving the uniformity of material distribution.

[0041] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0042] During work:

[0043] Before operation, check the status of each component of the equipment to ensure that the screening frame 4 is stacked and installed in place from top to bottom according to the screen mesh size, the guide block 401 is firmly engaged with the guide groove 1402, and the limiting plate 18 is locked by the positioning screw 19; the collection frame 5 is positioned and fixed by the limiting frame 15, the stop block 16 and the limiting spring 17, and the bottom is well attached to the support roller 1401. After confirming that everything is correct, turn on the power supply of the equipment, start the drive motor 603 and the crushing mechanism 10, run it unloaded for 3-5 minutes, check whether the movement of each mechanism is smooth, and enter the operation state after there is no jamming or abnormal noise.

[0044] Waste asphalt mixture, concrete blocks, and other recycled materials are evenly fed into the crushing chamber 1 through the feed hopper 11. The feeding speed is adapted to the crushing capacity of the crushing mechanism 10 to avoid blockage caused by feeding a large amount of material at once. The dual-shaft rotor of the crushing mechanism 10 rotates at high speed, and the material is squeezed and sheared by the hard alloy crushing teeth, crushing large pieces of recycled material into crushed material with a particle size ≤50mm. The crushed material is then conveyed to the screening chamber 2 through the discharge channel 3.

[0045] When the drive motor 603 is running, it drives the drive disc 605 to perform eccentric circular motion via the drive shaft 604. The drive disc 605 pulls the right drive block 601 to slide back and forth along the positioning rod 602 via the drive rod 606. At the same time, the left drive block 601 moves synchronously in the opposite direction under the action of the connecting elastic element 607. The two drive blocks 601 respectively drive the support frame 13 and support frame 2 14 to move back and forth in opposite directions. The transmission rod 901 at the top of the support frame 2 14 moves synchronously with it. Through the meshing of the saw teeth 903 and the transmission gear 902, it drives the rotating shaft 7 and the guide plate 8 to rotate back and forth. During the rotation of the guide plate 8, the crushed material in the feeding channel 3 is divided into small and multiple feeding states. At the same time, the feeding direction is dynamically adjusted so that the material is evenly distributed to the entire screen surface of the uppermost screening frame 4.

[0046] Support frame 13 and support frame 2 14 drive the collection frame 5 and the screening frame 4 to move synchronously relative to each other or in opposite directions. The material is subjected to high-frequency vibration screening on the multi-layer screening frame 4. The material with a particle size larger than the uppermost screen mesh size is intercepted. The material with a particle size between the upper and lower screen mesh sizes falls into the corresponding screening frame 4 in sequence. The fine material with the lowest screen mesh size finally falls into the collection frame 5, realizing the grading and separation of recycled materials with different particle sizes. During the screening process, the connecting elastic element 607 assists the drive block 601 to reset, making the screening movement more stable. The support roller 1401 converts the sliding friction of the collection frame 5 into rolling friction, reducing the movement resistance and component wear.

[0047] When the fine material in the collection frame 5 reaches a certain capacity or the material retained in the screening frame 4 is excessive, turn off the drive motor 603 and the crushing mechanism 10, and disconnect the power. Loosen the positioning screw 19, slide the limit plate 18, and remove each layer of screening frames 4 in sequence to collect and label the recycled materials of different particle sizes. Press the stop block 16 to compress the limit spring 17, causing the stop block 16 to disengage from the connecting block 501, and pull out the collection frame 5 to clean the fine material. After cleaning, reinstall the screening frame 4 and collection frame 5 in reverse order to ensure reliable positioning and prepare for the next round of operation.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A recycling material processing plant for road construction comprising a crushing chamber (1) and a screening chamber (2), wherein, The crushing chamber (1) is arranged above the screening chamber (2), and the two are communicated through the discharging channel (3), characterized in that: the inside of the screening chamber (2) is provided with a screening frame (4) for multi-layer screening of the crushed materials and a collecting frame (5) for collecting the finest materials, and the inside of the screening chamber (2) is provided with a driving mechanism (6) for driving the screening frame (4) and the collecting frame (5) to reciprocally move in the horizontal direction. The inside of the discharging channel (3) is rotatably provided with a rotating shaft (7), and the outer surface of the rotating shaft (7) is provided with a material guide plate (8) for guiding the falling materials, wherein the screening frame (4) drives the material guide plate (8) to reciprocally rotate through a transmission member (9) during the movement.

2. The recycled material processing apparatus for road construction according to claim 1, characterized in that: The inside of the crushing chamber (1) is provided with a crushing mechanism (10) for crushing the materials, and the top of the crushing chamber (1) is fixedly provided with a feeding hopper (11).

3. The recycled material processing apparatus for road construction of claim 1, wherein: The inside of the screening chamber (2) is fixedly provided with a base (12), the base (12) is sequentially and slidably provided with a support frame one (13) and a support frame two (14) from left to right, the collecting frame (5) is arranged on the support frame one (13) and the support frame two (14), and the screening frames (4) are stacked and the lowermost screening frame (4) is placed on the collecting frame (5).

4. The recycled material processing apparatus for road construction of claim 3, wherein: The side of the support frame one (13) away from the support frame two (14) is fixedly provided with a limiting frame (15), the limiting frame (15) is arranged in close contact with the outside of the collecting frame (5), and the support frame two (14) is provided with a supporting roller (1401) for supporting the collecting frame (5).

5. A recycled material processing apparatus for road construction according to claim 4, characterized in that: The front and rear sides of the collecting frame (5) are fixedly provided with connecting blocks (501), the inside of the support frame one (13) is slidably provided with a stop block (16), wherein the side of the stop block (16) and the connecting block (501) close to the support frame two (14) abuts, and the limiting spring (17) is fixedly arranged between the stop block (16) and the inner wall of the support frame one (13).

6. A recycled material processing apparatus for road construction according to claim 5, characterized in that: The front and rear sides of the screening frame (4) are fixedly provided with guide blocks (401), the side of the support frame two (14) away from the support frame one (13) is provided with a guide groove (1402), the side of the guide groove (1402) close to the support frame one (13) is sealingly arranged, the guide blocks (401) are inserted into the guide groove (1402) and are connected with the inner wall of the guide groove (1402), the support frame two (14) is slidably provided with a limiting plate (18) on the opening side of the guide groove (1402), the positioning screw rod (19) is threadedly arranged on the limiting plate (18) and extends to the inside of the support frame two (14) and is threadedly connected with the inner wall of the support frame two (14).

7. The recycled material processing apparatus for road construction of claim 1, wherein: The driving mechanism (6) comprises driving blocks (601) symmetrically and slidingly arranged on the base (12), the support frame one (13) and the support frame two (14) are respectively fixedly arranged on the top of the two driving blocks (601), the inside of the base (12) is fixedly provided with a positioning rod (602), the positioning rod (602) penetrates the driving block (601) and is slidingly arranged with the inner surface of the driving block (601), the outer side of one of the driving blocks (601) is fixedly provided with a driving motor (603), the output shaft of the driving motor (603) is fixedly provided with a driving shaft (604) through a shaft coupling, the end of the driving shaft (604) is fixedly provided with a driving disc (605), wherein the driving shaft (604) and the driving disc (605) are fixedly arranged at the edge of the driving disc (605), and the driving disc (605) and the other driving block (601) are rotationally connected through a driving rod (606).

8. A recycled material processing apparatus for road construction according to claim 7, characterized in that: The opposite sides of the two driving blocks (601) and the inner wall of the base (12) are fixedly provided with connecting elastic members (607).

9. A recycled material processing apparatus for road construction according to claim 8, characterized in that: The transmission member (9) comprises a transmission rod (901) fixedly arranged on the top of the support frame two (14), the end of the rotating shaft (7) extends to the outside of the discharging channel (3) and is fixedly provided with a transmission gear (902), one section of the transmission rod (901) is provided with a sawtooth (903) and is meshingly arranged with the transmission gear (902).

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