Road surface crushing and recycling equipment

Abstract

The invention relates to pavement crushing and recycling equipment, and belongs to the technical field of pavement dismantling. Comprising a crawler-type vehicle body, a pressing mechanism, an impact mechanism and an auxiliary mechanism, and a crushing device is arranged at the front end of the crawler-type vehicle body. The pressing mechanism is driven by a first power source through a crankshaft and drives a pressing frame hinged to a supporting frame to swing back and forth through a connecting rod, and crushing teeth at the tail end impact the road surface. The impact mechanism is integrated in the middle of the connecting rod, dynamically adjusts the length of the connecting rod and releases impact energy through a sliding column, a compression spring assembly and an impact wheel driven by a third power source, and the instantaneous impact force of crushing teeth is enhanced. The auxiliary mechanism comprises an adjusting assembly between the mounting frame and the supporting frame, and when the crushing teeth are pressed downwards to the lowest point, the crankshaft cam pulls the guide column to shorten the supporting distance. Through cooperation of multiple mechanisms, impact energy is concentrated in the downward pressing process of the crushing teeth, stress fluctuation of equipment is reduced, efficient crushing and separation of an asphalt layer are achieved, and meanwhile the service life of parts is prolonged.

Description

Technical Field

[0001] The invention relates to a road surface crushing and recycling device, belonging to the technical field of road surface demolition. Background Art

[0002] Asphalt pavement is widely used in transportation infrastructure such as urban roads, highways and parking lots due to its good compressive strength, durability and comfortable driving performance. However, with the increase in traffic volume and the influence of environmental factors, asphalt pavement will inevitably suffer from cracks, peeling and deformation during use, resulting in the decline of pavement performance and affecting driving safety and comfort. Therefore, it is necessary to regularly dismantle and maintain asphalt pavement. Dismantling is to peel off the asphalt layer from the base layer.

[0003] At present, asphalt pavement demolition is mainly carried out by excavators. The crushing head is replaced on the output arm of the excavator to separate the road surface, and finally it is loaded and transported away.

[0004] The existing Chinese invention patent with publication number CN118958108A is a road repair and cleaning equipment, which belongs to the field of road demolition technology. The equipment is mainly composed of an impact unit group, a cleaning unit group and a collection unit group. The impact unit group breaks the road surface through a swing frame and an impact assembly, and the driving mechanism I drives the swing frame to swing through a crank-connecting rod mechanism. The cleaning unit group uses the cleaning assembly on the fixed frame to remove road debris, and its input end is connected to the driving mechanism I to achieve power sharing. The collection unit group collects the cleaned debris into the collection box through the collection bin and conveying assembly on the chassis. The chassis and the support frame are assembled through a connecting frame, and the moving wheels facilitate the movement of the equipment. In addition, a positioning assembly is also provided at the front end of the chassis for supporting the fixed swing frame. The present invention realizes the cleaning operation before road repair through an integrated design, reduces the operating intensity of construction personnel, improves work efficiency, and provides an efficient and convenient solution for road maintenance.

[0005] There are at least the following technical problems in the prior art: Impact claws are used to impact and crush the road surface. During operation, the reverse impact force is too large, resulting in poor stability of the overall equipment. It is not easy for construction workers at the rear end to control it, and thicker asphalt layers cannot be effectively crushed. Summary of the invention The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a road surface crushing and recycling device, which greatly reduces the reverse impact force and more effectively crushes and separates the asphalt layer of the road surface.

[0006] The road surface crushing and recycling equipment of the present invention comprises: Vehicle body; A crushing device, used for crushing the asphalt pavement, the crushing device is arranged at the front end of the vehicle body; Crushing device includes: The pressing mechanism comprises a support frame, a crankshaft is rotatably connected to the support frame, one end of the crankshaft is connected to a first power source, a swingable pressing frame is hingedly connected to the support frame, a connecting rod for driving the pressing frame to reciprocate is hingedly connected to the crankshaft, the other end of the connecting rod is hingedly connected to the pressing frame, and a crushing tooth is arranged at one end of the pressing frame away from the support frame; The auxiliary mechanism includes a mounting frame arranged at the front end of the vehicle body, a support frame slidably connected to the mounting frame, and an adjustment component is also arranged between the support frame and the mounting frame, the adjustment component is used to adjust the distance between the support frame and the mounting frame, and when the pressing frame is pressed down to the lowest point, the adjustment component reduces the distance between the support frame and the mounting frame; Impact mechanism: The connecting rod is provided with an impact mechanism, which can adjust the length of the connecting rod to form an impact and transmit it to the crushing teeth.

[0007] Furthermore, the lower pressure frame is provided with mutually matching spline shafts, the spline shafts are sleeved with mutually matching tooth seats, a number of crushing teeth are installed on the tooth seats, and a fixing cover is connected to the lower pressure frame at the end of the spline shaft.

[0008] Furthermore, the crushing device is also provided with a knocking mechanism, which is arranged on the lower pressure frame. The knocking mechanism includes a second power source installed on the lower pressure frame. The lower pressure frame is located on the inner side of the crushing teeth and a rotating drum is installed. The second power source is connected to the rotating drum, and a crushing hammer is elastically connected to the rotating drum.

[0009] Furthermore, the circumferential surface of the drum is provided with a plurality of rows of evenly arranged connecting seats, a plurality of connecting springs are provided on the connecting seats, and a breaking hammer is connected to the connecting springs.

[0010] Furthermore, the impact mechanism includes an upper support plate and a lower support plate respectively arranged in the middle of the connecting rod, a sliding column is arranged on the lower support plate, the sliding column is slidably connected to the upper support plate, an adjusting nut is connected to the position where the sliding column extends out of the upper support plate, an impact plate is also slidably connected to the sliding column between the upper support plate and the lower support plate, and a plurality of compression spring assemblies are arranged between the impact plate and the upper support plate; Furthermore, a third power source is arranged on the upper and lower end surfaces of the lower support plate, and an output end of the third power source is connected to an impact wheel, which can make the impact plate reciprocate along the sliding column.

[0011] Furthermore, sliding columns are arranged on both sides of the lower support plate, and the sliding columns pass through the compression spring assemblies on both sides.

[0012] Furthermore, a third power source is installed on both sides of the lower support plate, and the third power source includes a driving motor. The output end of the driving motor is connected to a gearbox, the output end of the gearbox is connected to a transmission shaft, and the transmission shaft is connected to an impact wheel. The transmission shafts of the gearboxes on both sides of the lower support plate are coaxially connected through a coupling.

[0013] Further, the adjustment assembly includes a guide column arranged on the support frame, the guide column is slidably connected to the mounting frame, and a preload spring is sleeved on the guide column between the support frame and the mounting frame; A cam is arranged on the crankshaft, a pulling seat is arranged correspondingly on the mounting frame, a pulling column is arranged corresponding to the cam on the pulling seat, a pulling ring is arranged outside the pulling column and the cam, and the cam pulls the pulling column to move through the pulling ring during rotation, thereby shortening the distance between the support frame and the mounting frame.

[0014] Furthermore, a sliding seat is provided on the mounting frame, and the guide posts are slidably connected to the sliding seat. The guide posts are arranged on both sides of the support frame, and at least two groups are arranged on one side.

[0015] Furthermore, an outer shell is arranged outside the crushing device.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention reduces the distance between the support frame and the mounting frame by adjusting the components, and shovels off the inner asphalt layer through the crushing tooth side of the front end, thereby achieving more effective asphalt layer separation. The compression spring component and the impact wheel design of the impact mechanism can effectively absorb and buffer the impact force of the impact wheel when the compression spring component is not compressed. When the crushing tooth abuts against the asphalt layer, the compression spring component is compressed. At this time, the compression spring component cannot absorb the impact force of the impact wheel, thereby impacting the asphalt pavement, which greatly reduces the recoil force. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of Embodiment 1 of the present invention; Figure 2 This is one of the schematic diagrams of the structure of the crushing device according to Embodiment 1 of the present invention; Figure 3 yes Figure 2 A partial enlarged view of the middle part; Figure 4 yes Figure 2 A partial enlarged view of point B in the middle; Figure 5 It is a right side view of the crushing device of Example 1 of the present invention; Figure 6 This is the second schematic diagram of the structure of the crushing device according to the first embodiment of the present invention; Figure 7 yes Figure 6 A partial enlarged view of point C in the middle; Figure 8 is a schematic diagram of the crankshaft structure of Example 1 of the present invention; Fig. 9 is a right side view of the crankshaft of embodiment 1 of the present invention; Fig.10is a schematic structural diagram of an outer shell according to Embodiment 1 of the present invention; In the figure: 1. Pressing mechanism; 11. First power source; 12. Crankshaft; 121. Crank; 13. Support frame; 14. Connecting rod; 15. Pressing frame; 16. Spline shaft; 17. Gear seat; 18. Crushing tooth; 2. striking mechanism; 21. second power source; 22. rotating drum; 23. connecting seat; 231. connecting spring; 24. breaking hammer; 3. Impact mechanism; 31. Sliding column; 32. Adjusting nut; 33. Upper support plate; 34. Compression spring assembly; 35. Impact wheel; 36. Impact plate; 37. Lower support plate; 38. Third power source; 4. Auxiliary mechanism; 41. Mounting frame; 411. Sliding seat; 42. Adjustment assembly; 421. Pulling ring; 422. Pulling column; 423. Cam; 424. Guide column; 425. Preload spring; 5. Vehicle body; 51. Support arm; 6. Outer shell; 61. Front shell; 62. Rear shell. DETAILED DESCRIPTION

[0018] Example 1 like Figures 1 to 10 As shown, the road surface crushing and recycling equipment of the present invention comprises: The vehicle body 5 adopts the existing tracked vehicle, and a control panel is provided at the front end. The crushing device is installed corresponding to the front end of the vehicle body 5 control panel. A support arm 51 extending forward is also provided at the front end of the vehicle body 5. The support arm 51 is used to provide additional support for the support frame 13, and is used to reduce the pressure of the support frame 13 on the guide column 424, so that the support arm 51 forms a sliding support for the support frame 13.

[0019] A crushing device, used for crushing the asphalt pavement, the crushing device is arranged at the front end of the vehicle body 5; like Figure 2 or Figure 3 As shown, the crushing device includes: The pressing mechanism 1 includes a support frame 13, on which a crankshaft 12 is rotatably connected, one end of the crankshaft 12 is connected to a first power source 11, a swingable pressing frame 15 is hingedly connected to the support frame 13, a connecting rod 14 is hingedly connected to the crankshaft 12 for driving the pressing frame 15 to reciprocate, the other end of the connecting rod 14 is hingedly connected to the pressing frame 15, a crushing tooth 18 is provided at one end of the pressing frame 15 away from the support frame 13, a bearing seat is provided on the support frame 13 corresponding to the crankshaft 12, the bearing seat is used to install the crankshaft 12, and three groups of bearing seats are arranged here to support each force point, thereby making the crankshaft movement more stable.

[0020] The crank 121 on the crankshaft 12 is hingedly connected to the connecting rod 14, and the connecting rod 14 is driven to move by the rotation of the crank 121. The connecting rod 14 is hingedly connected to the lower pressure frame 15 through the lower end, thereby driving the lower pressure frame 15 to swing.

[0021] The first power source 11 uses a reduction motor to reduce the rotation speed of the crankshaft 12 so as to facilitate control by the operator.

[0022] like Figure 6 or Figure 7 As shown, the auxiliary mechanism 4 includes a mounting frame 41 set to the front end of the vehicle body 5, the support frame 13 is slidably connected to the mounting frame 41, and an adjustment component 42 is also provided between the support frame 13 and the mounting frame 41. The adjustment component 42 is used to adjust the distance between the support frame 13 and the mounting frame 41. When the lower pressing frame 15 is pressed down to the lowest point, the adjustment component 42 shortens the distance between the support frame 13 and the mounting frame 41.

[0023] Impact mechanism 3: The connecting rod 14 is provided with an impact mechanism 3, and the impact mechanism 3 can adjust the length of the connecting rod 14, thereby forming an impact and transmitting it to the crushing tooth 18.

[0024] The lower pressure frame 15 is provided with a spline shaft 16 that cooperates with each other, and the spline shaft 16 is provided with a tooth seat 17 that cooperates with each other. A number of crushing teeth 18 are installed on the tooth seat 17. A fixing cover is connected to the lower pressure frame 15 at the end of the spline shaft 16. The connection with the spline shaft 16 can make the tooth seat 17 more stable and easy to replace. In addition, the spline shaft 16 can be rotated and then reinstalled to effectively adjust the angle of the crushing tooth 18.

[0025] like Figure 3 As shown, the crushing device is also provided with a knocking mechanism 2, and the knocking mechanism 2 is arranged on the lower pressure frame 15, and the knocking mechanism 2 includes a second power source 21 installed on the lower pressure frame 15, and the lower pressure frame 15 is located on the inner side of the crushing teeth 18 and is installed with a rotating drum 22, and the second power source 21 is connected to the rotating drum 22, and a breaker hammer 24 is elastically connected to the rotating drum 22.

[0026] A plurality of rows of evenly arranged connection seats 23 are provided on the circumferential surface of the drum 22 . A plurality of connection springs 231 are provided on the connection seats 23 . Breaking hammers 24 are connected to the connection springs 231 .

[0027] During operation, the asphalt blocks scraped off by the crushing teeth 18 are crushed by the crushing hammer 24 to make the asphalt blocks smaller, making it easier for the crushing teeth 18 to scrape off the asphalt blocks, thereby preventing the asphalt blocks from becoming too large during the scraping process and affecting the life of the scraping teeth.

[0028] like Figure 4As shown, the impact mechanism 3 includes an upper support plate 33 and a lower support plate 37 respectively arranged in the middle of the connecting rod 14, a sliding column 31 is arranged on the lower support plate 37, the sliding column 31 is slidably connected to the upper support plate 33, an adjusting nut 32 is connected to the position where the sliding column 31 extends out of the upper support plate 33, an impact plate 36 is also slidably connected to the sliding column 31 between the upper support plate 33 and the lower support plate 37, a plurality of compression spring assemblies 34 are arranged between the impact plate 36 and the upper support plate 33, the compression spring assembly 34 includes spring seats respectively installed on both sides, and compression springs are installed between the spring seats.

[0029] A third power source 38 is disposed on the upper and lower end surfaces of the lower support plate 37 . An output end of the third power source 38 is connected to an impact wheel 35 . The impact wheel 35 can make the impact plate 36 reciprocate along the sliding column 31 .

[0030] Sliding columns 31 are provided on both sides of the lower support plate 37, and the sliding columns 31 pass through the compression spring assemblies 34 on both sides. By using the sliding columns 31 passing through the compression spring assemblies 34 on both sides, it can not only meet the design requirements of the impact wheel 35 fitting the impact plate 36, but also play a buffering role for the connecting rod 14, thereby greatly simplifying the overall structure of the impact mechanism 3.

[0031] A third power source 38 is installed on both sides of the lower support plate 37. The third power source 38 includes a driving motor. The output end of the driving motor is connected to a gearbox. The output end of the gearbox is connected to a transmission shaft. The transmission shaft is connected to an impact wheel 35. The transmission shafts of the gearboxes on both sides of the lower support plate 37 are coaxially connected through a coupling.

[0032] like Figure 7 As shown, the adjustment assembly 42 includes a guide column 424 disposed on the support frame 13 , the guide column 424 is slidably connected to the mounting frame 41 , and a preload spring 425 is sleeved on the guide column 424 between the support frame 13 and the mounting frame 41 .

[0033] The rigidity of the preload spring 425 can support the lower pressure frame 15. When not in use, the preload spring 425 can effectively support the lower pressure frame 15, so that the crushing teeth 18 are at the upper end.

[0034] A cam 423 is provided on the crankshaft 12, and a pulling seat is correspondingly provided on the mounting frame 41. A pulling column 422 is provided on the pulling seat corresponding to the cam 423. A pulling ring 421 is mounted outside the pulling column 422 and the cam 423. During the rotation process, the cam 423 pulls the pulling column 422 to move through the pulling ring 421, thereby shortening the distance between the support frame 13 and the mounting frame 41.

[0035] Here, the pulling ring 421 is used to pull the pulling column 422, with the purpose of using the main power of the third power source 38 to pull the crushing tooth 18, so as to make the driving force stronger.

[0036] like Fig. 9 As shown, the crank 121 on the crankshaft 12 is staggered at a certain angle with the cam 423, so that when the crushing tooth 18 reaches the lowest end, the cam 423 pulls the pulling column 422 through the pulling ring 421, thereby reducing the distance between the small support frame 13 and the mounting frame 41, so that the crushing tooth 18 scrapes off the asphalt layer.

[0037] A sliding seat 411 is disposed on the mounting frame 41 , and guide posts 424 are slidably connected to the sliding seat 411 . The guide posts 424 are arranged on both sides of the support frame 13 , with at least two groups arranged on one side.

[0038] like Fig.10 As shown, an outer shell 6 is provided on the outside of the crushing device, and the outer shell 6 is divided into a front shell 61 and a rear shell 62. The front shell 61 is provided on the outside of the knocking mechanism 2 to block the flying stones generated by the knocking mechanism 2. The outer shell 62 is provided on the outside of the crushing device as a whole, and the rear shell 62 is installed on the mounting frame 41 by screws.

[0039] Working process or working principle: The first part is the equipment structure and power distribution.

[0040] Vehicle body: The crawler chassis (vehicle body 5) provides mobility, and the front console controls the operation of the equipment. The support arm 51 extends to the crushing device, sharing the pressure of the support frame 13 on the guide column 424, improving stability.

[0041] Crushing device: It is composed of a pressing mechanism 1, an impact mechanism 3, a knocking mechanism 2 and an auxiliary mechanism 4, and each mechanism works in coordination through a power source.

[0042] The vehicle body adopts the reverse driving method to remove the asphalt layer, which ensures the smooth operation of the crawler chassis.

[0043] The second part is the downward pressure crushing stage.

[0044] Crankshaft 12 drive: The first power source 11 (reduction motor) drives the crankshaft 12 to rotate, and the crank 121 drives the lower pressure frame 15 to swing back and forth through the connecting rod 14, so that the crushing teeth 18 at the end impact the road surface.

[0045] Adjustment of spline shaft 16: The crushing tooth 18 is connected to the tooth seat 17 through the spline shaft 16, and the angle can be rotated to adjust the service life and adapt to different working conditions.

[0046] Dynamic pulling: The crankshaft 12 synchronously drives the cam 423 to rotate. When the crushing tooth 18 is pressed down to the lowest point, the cam 423 pulls the pulling column 422 through the pulling ring 421, thereby shortening the distance between the support frame 13 and the mounting frame 41, and moving the support frame 13 toward the vehicle body 5, thereby driving the crushing tooth 18 to move, thereby scraping off the asphalt layer.

[0047] The third part is impact strengthening crushing.

[0048] Function of the impact mechanism 3: The third power source 38 drives the impact wheel 35 to rotate, pushing the impact plate 36 to reciprocate along the sliding column 31, and the compression spring assembly 34 absorbs the impact force. When the compression spring assembly 34 is compressed (that is, when the crushing tooth 18 abuts against the asphalt layer), the compression spring assembly 34 releases the impact force, causing an impact on the asphalt layer, which is transmitted to the lower pressure frame 15 through the connecting rod 14 at the lower end, and then transmitted to the crushing tooth 18, thereby enhancing the instantaneous impact strength and improving the crushing efficiency.

[0049] Synchronous buffering: The compression spring assembly 34 buffers the impact force transmitted by the crankshaft 12 and protects the connecting rod 14 structure.

[0050] The fourth part is secondary crushing and adjustment optimization.

[0051] The striking mechanism 2: the second power source 21 drives the drum 22 to rotate, and the connecting seat 23 drives the breaker 24 to swing at high speed through the connecting spring 231, so as to secondary crush the asphalt blocks scooped up by the crushing teeth 18 to prevent large blocks from getting stuck.

[0052] The fifth part is protection.

[0053] Shell protection: The front shell 61 blocks the flying debris generated by the knocking mechanism, and the rear shell 62 covers the entire crushing device and is fixed to the mounting frame 41 by screws for easy maintenance.

[0054] The description of the direction and relative position relationship of the structure in the present invention, such as the description of front, back, left, right, up, and down, does not constitute a limitation of the present invention, but is only for the convenience of description.

Claims

1. A road crushing and recycling device, characterized in that: include: Body (5); A crushing device, used for crushing the asphalt pavement, the crushing device being arranged at the front end of the vehicle body (5); Crushing device includes: The pressing mechanism (1) comprises a support frame (13), a crankshaft (12) is rotatably connected to the support frame (13), one end of the crankshaft (12) is connected to a first power source (11), a swingable pressing frame (15) is hingedly connected to the support frame (13), a connecting rod (14) is hingedly connected to the crankshaft (12) for driving the pressing frame (15) to reciprocate, the other end of the connecting rod (14) is hingedly connected to the pressing frame (15), and a crushing tooth (18) is provided at one end of the pressing frame (15) away from the support frame (13); The auxiliary mechanism (4) comprises a mounting frame (41) arranged at the front end of the vehicle body (5), the support frame (13) being slidably connected to the mounting frame (41), and an adjustment component (42) being arranged between the support frame (13) and the mounting frame (41), the adjustment component (42) being used to adjust the distance between the support frame (13) and the mounting frame (41), and when the lower pressing frame (15) is pressed down to the lowest point, the adjustment component (42) reduces the distance between the support frame (13) and the mounting frame (41); An impact mechanism (3) is provided on the connecting rod (14). The impact mechanism (3) can adjust the length of the connecting rod (14), thereby generating an impact that is transmitted to the crushing teeth (18).

2. The road crushing recycling equipment according to claim 1 is characterized in that: The lower pressing frame (15) is provided with a spline shaft (16) that cooperates with each other, the spline shaft (16) is sleeved with a tooth seat (17) that cooperates with each other, and a plurality of crushing teeth (18) are installed on the tooth seat (17). A fixing cover is connected to the lower pressing frame (15) at the end of the spline shaft (16).

3. The road crushing recycling equipment according to claim 1 is characterized in that: The crushing device is also provided with a knocking mechanism (2), the knocking mechanism (2) being provided on the lower pressure frame (15), the knocking mechanism (2) comprising a second power source (21) mounted on the lower pressure frame (15), a rotating drum (22) being mounted on the inner side of the crushing teeth (18) of the lower pressure frame (15), the second power source (21) being connected to the rotating drum (22), and a crushing hammer (24) being elastically connected to the rotating drum (22).

4. The road crushing recycling equipment according to claim 3 is characterized in that: A plurality of evenly arranged rows of connection seats (23) are provided on the circumferential surface of the rotating drum (22), a plurality of connection springs (231) are provided on the connection seats (23), and a breaker hammer (24) is connected to the connection spring (231).

5. The road crushing recycling equipment according to claim 1 is characterized in that: The impact mechanism (3) comprises an upper support plate (33) and a lower support plate (37) respectively arranged in the middle of the connecting rod (14); a sliding column (31) is arranged on the lower support plate (37); the sliding column (31) is slidably connected to the upper support plate (33); an adjusting nut (32) is connected to the position where the sliding column (31) protrudes from the upper support plate (33); an impact plate (36) is also slidably connected to the sliding column (31) between the upper support plate (33) and the lower support plate (37); and a plurality of compression spring assemblies (34) are arranged between the impact plate (36) and the upper support plate (33); A third power source (38) is provided on the upper and lower end surfaces of the lower support plate (37), and an output end of the third power source (38) is connected to an impact wheel (35), and the impact wheel (35) can cause the impact plate (36) to reciprocate along the sliding column (31).

6. The road crushing recycling equipment according to claim 5 is characterized in that: Sliding columns (31) are arranged on both sides of the lower support plate (37), and the sliding columns (31) pass through the compression spring assemblies (34) on both sides.

7. The road crushing recycling equipment according to claim 5 is characterized in that: A third power source (38) is respectively installed on both sides of the lower support plate (37), the third power source (38) comprises a drive motor, an output end of the drive motor is connected to a gearbox, an output end of the gearbox is connected to a transmission shaft, an impact wheel (35) is connected to the transmission shaft, and the transmission shafts of the gearboxes on both sides of the lower support plate (37) are coaxially connected via a coupling.

8. The road crushing recycling equipment according to claim 1 is characterized in that: The adjustment assembly (42) comprises a guide column (424) arranged on the support frame (13), the guide column (424) being slidably connected to the mounting frame (41), and a preload spring (425) being sleeved on the guide column (424) between the support frame (13) and the mounting frame (41); A cam (423) is provided on the crankshaft (12), a pulling seat is correspondingly provided on the mounting frame (41), a pulling column (422) is provided on the pulling seat corresponding to the cam (423), a pulling ring (421) is sleeved outside the pulling column (422) and the cam (423), and the cam (423) pulls the pulling column (422) to move through the pulling ring (421) during rotation, thereby reducing the distance between the support frame (13) and the mounting frame (41).

9. The road crushing recycling equipment according to claim 8 is characterized in that: A sliding seat (411) is provided on the mounting frame (41), and a guide column (424) is slidably connected to the sliding seat (411). The guide columns (424) are arranged on both sides of the support frame (13), with at least two groups being arranged on one side.

10. The road crushing recycling equipment according to claim 1, characterized in that: An outer shell (6) is arranged outside the crushing device.

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