High-speed road construction maintenance equipment

By designing a high-speed road construction and maintenance equipment combining pavement milling and pavement hammering structures, the problem of relying on manpower and soil and rock drop for road planing and milling operations in the prior art is solved, and the effect of rapid compaction and tunnel edge stability is achieved.

CN120061218AActive Publication Date: 2025-05-30YANGQUAN TAIJIU BOTE ROAD MAINTENANCE ENG CO LTD
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Patent Information

Application Number
CN202510536137.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2025-05-30
Estimated Expiration
2045-04-27

AI Technical Summary

Technical Problem

During the construction and maintenance of highway roads, the existing technology relies on manpower for the compaction operation after pavement planing and milling, and it is difficult to effectively prevent the soil and rocks from falling off the edges of the pits.

Method used

A high-speed road construction and maintenance equipment is designed, combining the road surface milling structure and the road surface hammer pressing structure, and adopting a hammer pressing structure and a reciprocating hammer hit structure to achieve compaction of the bottom of the pit hole after the milling and pushing and pressing the soil and rocks at the edge of the tunnel to ensure the stability of the tunnel edge.

Benefits of technology

This equipment can quickly compact the road surface, prevent the soil and stones from falling off the edge of the pit after planing and milling, ensure the stable connection between the subsequent poured concrete and the original concrete, and improve construction efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses highway construction maintenance equipment, and belongs to the technical field of pavement maintenance equipment.The highway construction maintenance equipment comprises a frame, a pavement milling structure is fixedly mounted at the front end of the frame and fixedly connected with a gravel collecting device, and a milling pavement hammering structure fixedly connected with the frame is arranged at the tail end of the frame; and the broken stone collecting device is arranged between the pavement milling structure and the milled pavement hammering structure. In order to quickly tamp a pavement after the pavement is planed and milled and prevent soil and stones at the edge of a planed and milled pit hole from falling off, the invention provides the highway construction maintenance equipment, while the planed and milled pit hole is tamped, loose soil and stones at the edge of a tunnel are pushed and pressed, so that the edge of the tunnel is stable, and the construction efficiency is improved. And the subsequent poured concrete can be stably connected with the original concrete in the tunnel.
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Description

Technical Field

[0001] The present invention belongs to the technical field of pavement maintenance equipment, and specifically refers to a high-speed road construction and maintenance equipment. Background Art

[0002] High-speed pavement maintenance includes tasks such as road cleaning, crack treatment, pothole repair, and pavement milling and overlaying. When the pavement is severely damaged, such as when there is a certain range of cracking on the pavement accompanied by pavement subsidence, the area should be milled in a timely manner and then a new asphalt concrete surface layer should be laid.

[0003] During the pavement maintenance process, the constructor uses a hammering method to crush the damaged pavement, then arranges workers to shovel out the crushed stones, and finally tamp the damaged foundation part. This series of operations is highly dependent on manpower, so it is necessary to improve the current pavement milling equipment. Summary of the Invention

[0004] In view of the above situation, in order to quickly tamp the pavement after milling and prevent the soil and stones at the edges of the milled potholes from falling, the present invention provides a high-speed road construction and maintenance equipment, which not only tamp the potholes after milling, but also plays a role in pushing and pressing the loose soil and stones at the edges of the potholes, making the edges of the potholes stable, which is beneficial to the subsequent concrete poured in the potholes to be stably connected with the original concrete.

[0005] The technical solution adopted by the present invention is as follows: A high-speed road construction and maintenance equipment provided by the present invention includes a vehicle frame. A pavement milling structure is fixedly installed at the front end of the vehicle frame. The pavement milling structure is fixedly connected to a crushed stone collection device. A milling pavement hammering and pressing structure is fixedly connected to the end of the vehicle frame. The crushed stone collection device is arranged between the pavement milling structure and the milling pavement hammering and pressing structure. The milling pavement hammering and pressing structure includes a hammering and pressing and pushing structure and a reciprocating hammering structure. The reciprocating hammering structure is fixedly installed on the vehicle frame, and the hammering and pressing and pushing structure is connected to the reciprocating hammering structure.

[0006] Further, the reciprocating hammering structure includes a crank, a connecting rod, a connecting bracket, a hinge bracket, a chute, a sleeve, a belt one, a belt shaft one, and a motor one. The motor one is fixedly installed in the pavement milling structure. The chute is fixedly connected to the pavement milling structure through a bracket. The belt shaft one is rotatably engaged and arranged on the bracket fixedly connected to the chute. The belt one is sleeved between the motor one and the belt shaft one. The motor one drives the belt shaft one to rotate. The crank is fixedly connected to the belt shaft one. The rotation of the belt shaft one drives the crank to rotate. The connecting rod is rotatably engaged with the crank. The connecting bracket is fixedly connected to the connecting rod. The connecting bracket slides up and down along the chute. The sleeve is fixedly installed on the hammering and pressing and pushing structure. The hinge bracket is fixedly installed on the side wall of the sleeve. The connecting bracket is connected to the hinge bracket.

[0007] Further, the hammer pressing and pushing structure includes a hard hammer, a soft hammer base, a side pushing plate, a pushing plate engaging flat groove, a flat groove engaging bracket, a vertical slot, a horizontal pushing and bending plate, and a bending plate sliding groove. The hard hammer is fixedly installed on the bottom wall of the sleeve, the soft hammer base is fixedly installed on the bottom wall of the hard hammer, the pushing plate engaging flat groove is arranged on the side wall of the hard hammer, the flat groove engaging bracket slides horizontally along the pushing plate engaging flat groove to ensure its horizontal movement relative to the hard hammer when the side pushing plate moves horizontally. The side pushing plate is fixedly installed on the flat groove engaging bracket, the vertical slot is fixedly arranged on the top wall of the hard hammer, the bending plate sliding groove is fixedly arranged inside the hard hammer, the horizontal pushing and bending plate slides horizontally along the bending plate sliding groove, and the horizontal pushing and bending plate is fixedly installed on the side pushing plate.

[0008] Further, a limit vertical column and a horizontal pushing vertical column connected by threads are provided on the bottom wall of the vehicle frame. The limit vertical column is engaged and slidably connected with the sleeve, the horizontal pushing vertical column slides in the vertical slot in a clamped manner, and the bottom wall of the horizontal pushing vertical column is in contact connection with the horizontal pushing and bending plate.

[0009] Preferably, the contact surfaces of the horizontal pushing and bending plate and the horizontal pushing vertical column are both set as inclined surfaces. When the hard hammer moves upward, the horizontal pushing vertical column presses the horizontal pushing and bending plate and causes the horizontal pushing and bending plate to slide horizontally. When the hard hammer slides downward and separates from the horizontal pushing vertical column, the horizontal pushing and bending plate drives the side pushing plate to slide away from the hard hammer. A spring is provided between the side pushing plate and the hard hammer to ensure that the side pushing plate will slide horizontally when the horizontal pushing and bending plate separates from the horizontal pushing vertical column.

[0010] Further, the road milling structure includes a milling drum, a drum baffle, a second belt, a motor box, a second motor, a belt baffle, and a sinking air cylinder. The sinking air cylinder is fixedly installed on the vehicle frame, the motor box is fixedly connected with the sinking air cylinder. When the sinking air cylinder extends, the motor box moves downward, driving the gravel collection device and the road milling and hammer pressing structure to move downward together. A first motor and a second motor are fixedly installed in the motor box. The drum baffle is fixedly connected with the motor box through a bracket. The milling drum is rotatably installed in the drum baffle in a clamped manner. Both ends of the second belt are sleeved on the second motor and the milling drum, and the kinetic energy of the second motor is transmitted to the lower milling drum through the second belt to realize the milling of the ground by the milling drum. Both ends of the belt baffle are respectively fixedly connected with the drum baffle and the motor box.

[0011] Preferably, a first baffle is provided outside the first belt.

[0012] Further, hook-shaped protrusions are provided on the surface of the milling drum.

[0013] Further, the gravel collection device includes a gravel collection shovel and a collection telescopic air cylinder. The collection telescopic air cylinder is fixedly installed on the motor box, and the gravel collection shovel is fixedly connected with the collection telescopic air cylinder.

[0014] Preferably, the bottom wall of the gravel collection shovel is set as an inclined plane. When gravel enters the gravel collection shovel, as the equipment moves and the number of small stones entering the gravel collection shovel increases, the gravel at the rear end pushes and squeezes the gravel at the front end to move deeper into the gravel collection shovel, facilitating the collection of stones on the ground.

[0015] Furthermore, the vehicle frame includes rollers, side wall brackets, and a top plate. The rollers roll along the ground. A sinking cylinder is provided on the bottom wall of the top plate. The side wall brackets are fixedly installed on the side walls of the top plate, and the rollers are rotatably installed on the side wall brackets in a clamping manner.

[0016] Furthermore, protrusions are provided on the outer wall of the belt baffle, and the protrusions are clamped on the side wall brackets, which can play a stabilizing role when the motor box moves up and down.

[0017] A high-speed road construction and maintenance equipment provided by this solution has the following beneficial effects: After the milling drum damages the road surface, the soil and stone in the collection pit are collected, and the foundation at the bottom of the pit can also be tamped. Most importantly, while tamping the foundation, using the thrust between the horizontal push column and the horizontal push bending plate, the side push plate obtains a horizontal thrust, realizing the pushing effect of the side push plate on the soil and stone at the edge of the milling pit, and constructing a relatively stable pit structure for subsequent asphalt pouring. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a rear three-dimensional view of a high-speed road construction and maintenance equipment provided by the present invention; Figure 2 It is an exploded view of a high-speed road construction and maintenance equipment provided by the present invention; Figure 3 It is a front three-dimensional view of a high-speed road construction and maintenance equipment provided by the present invention; Figure 4 It is a right-side cross-sectional view of a high-speed road construction and maintenance equipment provided by the present invention in the use state; Figure 5 It is a right-side cross-sectional view of a high-speed road construction and maintenance equipment provided by the present invention; Figure 6 It is a schematic internal structure diagram of the hammer pressing and horizontal pushing structure; Figure 7 It is a front three-dimensional view of a high-speed road construction and maintenance equipment provided by the present invention; Figure 8 It is a schematic internal structure diagram of a high-speed road construction and maintenance equipment provided by the present invention; Figure 9 It is a three-dimensional cross-sectional view of the milling road surface hammer pressing structure.

[0019] Among them, 1. Road surface milling structure, 2. Gravel collection device, 3. Milled road surface hammering structure, 4. Hammer pressing and pushing structure, 5. Reciprocating hammering structure, 6. Crank, 7. Connecting rod, 8. Connecting bracket, 9. Hinge bracket, 10. Slide groove, 11. Sleeve, 12. Belt 1, 13. Belt shaft 1, 14. Motor 1, 15. Hard hammer, 16. Soft hammer base, 17. Side push plate, 18. Push plate engaging flat groove, 19. Flat groove engaging bracket, 20. Vertical slot, 21. Horizontal push bending plate, 22. Bending plate slide groove, 23. Limit column, 24. Horizontal push column, 25. Milling drum, 26. Drum baffle, 27. Belt 2, 28. Motor box, 29. Motor 2, 30. Belt baffle, 31. Sinking cylinder, 32. Gravel collection shovel, 33. Collection telescopic cylinder, 34. Frame, 35. Roller, 36. Side wall bracket, 37. Top plate, 38. Baffle 1.

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. Detailed implementation manners

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0023] As Figures 1-9 shown, a high-speed road construction and maintenance device provided by the present invention includes a frame 34. A road surface milling structure 1 is fixedly installed at the front end of the frame 34. The road surface milling structure 1 is fixedly connected to a gravel collection device 2. A milled road surface hammering structure 3 is fixedly connected to the end of the frame 34. The gravel collection device 2 is arranged between the road surface milling structure 1 and the milled road surface hammering structure 3; the frame 34 includes rollers 35, side wall brackets 36, and a top plate 37. A sinking cylinder 31 is provided on the bottom wall of the top plate 37. The side wall brackets 36 are fixedly installed on the side walls of the top plate 37. The rollers 35 are rotatably installed in the side wall brackets 36 in a clamping manner.

[0024] The milling pavement hammer pressing structure 3 includes a hammer pressing and pushing structure 4 and a reciprocating hammering structure 5. The reciprocating hammering structure 5 is fixedly installed on the vehicle frame 34, and the hammer pressing and pushing structure 4 is connected to the reciprocating hammering structure 5; the reciprocating hammering structure 5 includes a crank 6, a connecting rod 7, a connecting bracket 8, a hinge bracket 9, a chute 10, a sleeve 11, a first belt 12, a first belt shaft 13 and a first motor 14. The first motor 14 is fixedly installed in the pavement milling structure 1. The chute 10 is fixedly connected to the pavement milling structure 1 through a bracket. The first belt shaft 13 is rotatably engaged and arranged on the bracket fixedly connected to the chute 10. The first belt 12 is sleeved between the first motor 14 and the first belt shaft 13. The crank 6 is fixedly connected to the first belt shaft 13. The connecting rod 7 is rotatably engaged with the crank 6. The connecting bracket 8 is fixedly connected to the connecting rod 7. The connecting bracket 8 slides up and down along the chute 10. The sleeve 11 is fixedly installed on the hammer pressing and pushing structure 4. The hinge bracket 9 is fixedly installed on the side wall of the sleeve 11. The connecting bracket 8 is connected to the hinge bracket 9.

[0025] The hammer pressing and pushing structure 4 includes a hard hammer 15, a soft hammer base 16, a side pushing plate 17, a pushing plate engaging flat groove 18, a flat groove engaging bracket 19, a vertical slot 20, a horizontal pushing bent plate 21, and a bent plate chute 22. The hard hammer 15 is fixedly installed on the bottom wall of the sleeve 11. The soft hammer base 16 is fixedly installed on the bottom wall of the hard hammer 15. The pushing plate engaging flat groove 18 is arranged on the side wall of the hard hammer 15. The flat groove engaging bracket 19 slides horizontally along the pushing plate engaging flat groove 18. The side pushing plate 17 is fixedly installed on the flat groove engaging bracket 19. The vertical slot 20 is fixedly arranged on the top wall of the hard hammer 15. The bent plate chute 22 is fixedly arranged in the hard hammer 15. The horizontal pushing bent plate 21 slides horizontally along the bent plate chute 22. The horizontal pushing bent plate 21 is fixedly installed on the side pushing plate 17.

[0026] A limiting upright column 23 and a horizontal pushing upright column 24 are arranged on the bottom wall of the vehicle frame 34. The limiting upright column 23 is slidably engaged with the sleeve 11. The horizontal pushing upright column 24 slidably engages along the vertical slot 20, and the bottom wall of the horizontal pushing upright column 24 is in contact connection with the horizontal pushing bent plate 21.

[0027] The contact surfaces between the horizontal pushing bent plate 21 and the horizontal pushing upright column 24 are all set as inclined surfaces. A spring is arranged between the side pushing plate 17 and the hard hammer 15.

[0028] The road milling structure 1 includes a milling drum 25, a drum baffle 26, a second belt 27, a motor box 28, a second motor 29, a belt baffle 30, and a sinking cylinder 31. The sinking cylinder 31 is fixedly installed on the vehicle frame 34. The motor box 28 is fixedly connected to the sinking cylinder 31. A first motor 14 and a second motor 29 are fixedly installed in the motor box 28. The drum baffle 26 is fixedly connected to the motor box 28 through a bracket. The milling drum 25 is rotatably engaged in the drum baffle 26. Both ends of the second belt 27 are sleeved on the second motor 29 and the milling drum 25. Both ends of the belt baffle 30 are respectively fixedly connected to the drum baffle 26 and the motor box 28.

[0029] A first baffle 38 is provided outside the first belt 12.

[0030] Hook-shaped protrusions are provided on the surface of the milling drum 25.

[0031] The gravel collection device 2 includes a gravel collection shovel 32 and a collection telescopic cylinder 33. The collection telescopic cylinder 33 is fixedly installed on the motor box 28. The gravel collection shovel 32 is fixedly connected to the collection telescopic cylinder 33.

[0032] The bottom wall of the gravel collection shovel 32 is set as an inclined plane.

[0033] Protrusions are provided on the outer wall of the belt baffle 30, and the protrusions are engaged on the side wall bracket 36.

[0034] During specific use, when cracks and subsidence occur on the road surface, the problem area should be milled; Move the equipment to the working area that needs to be milled. The sinking cylinder 31 extends, and the milling drum 25 contacts the cracked road surface. The second motor 29 is powered on, and the second belt 27 slides driven by the motor. The second belt 27 transfers the kinetic energy of the second motor 29 to the milling drum 25. The milling drum 25 rotates to crush the cracked road surface. At the same time, the vehicle body moves forward to crush the cracked road surface on the vehicle's forward route; To facilitate subsequent compaction of the roadbed, when sending the gravel generated by milling out of the area to be maintained, extend the collection telescopic cylinder 33, lower the gravel collection shovel 32, and the gravel collection shovel 32 contacts the stones to collect the gravel in the gravel collection shovel 32; When only the single requirement of compacting the road surface is needed, the first motor 14 is powered on and rotates. The first motor 14 drives the first belt 12 to slide. Since both ends of the first belt 12 are connected to the first motor 14 and the first belt shaft 13 respectively, the first belt 12 drives the first belt shaft 13 to rotate. And the crank 6 is fixedly connected to the first belt shaft 13, achieving the effect that the rotation of the first belt shaft 13 drives the rotation of the crank 6. The crank 6 rotates continuously, making the connecting rod 7 slide up and down along the chute 10. The connecting rod 7 is fixedly connected to the connecting bracket 8, and the connecting bracket 8 is connected to the articulated bracket 9. The articulated bracket 9 is fixedly installed on the sleeve 11. When the connecting rod 7 moves, the connecting bracket 8 drags the articulated bracket 9 to move, and the articulated bracket 9 drives the sleeve 11 to slide on the limit vertical column 23, making the hard hammer 15 reciprocate in the vertical direction. The soft hammer base 16 made of rubber hammers downwards repeatedly, playing a role in reducing the impact force between the equipment and the ground and effectively compacting the ground. When the design requirement is to provide a lateral thrust to the side wall of the foundation pit while compacting the foundation pit to prevent the soil and stone around the milled hole from falling, the horizontal push vertical column 24 is installed in the threaded groove below the top plate 37. When the crank structure moves and drives the hard hammer 15 to make a reciprocating up and down movement, a relative displacement is generated between the hard hammer 15 and the horizontal push vertical column 24. During the process of the hard hammer 15 falling, the spatial position of the horizontal push vertical column 24 remains unchanged, and the horizontal push bending plate 21 moves away from the horizontal push vertical column 24. Under the action of the spring between the side push plate 17 and the hard hammer 15, the side push plate 17 moves away from the hard hammer 15, and the two groups of side push plates 17 on both sides of the hard hammer 15 press on the edge of the foundation pit. During the upward movement of the hard hammer 15, the position of the horizontal push vertical column 24 remains unchanged. The hard hammer 15 drives the horizontal push bending plate 21 to move upward. The inclined side wall of the horizontal push bending plate 21 contacts the inclined surface of the bottom wall of the horizontal push vertical column 24. The bottom wall of the horizontal push vertical column 24 presses on the horizontal push bending plate 21, making the horizontal push bending plate 21 slide horizontally. The horizontal push bending plate 21 drives the side push plate 17 to move closer to the direction where the hard hammer 15 is located. At this time, the side wall of the side push plate 17 contacts and is connected to the side wall of the hard hammer 15, shrinking the distance between the hard hammer 15 and the side push plate 17 before the next movement of compacting the foundation pit, which is beneficial to cleaning the fallen stones on both sides of the tunnel while compacting the foundation pit for the next time, achieving the effect of compacting the tunnel while pushing the soil and stone on both sides of the passage.

[0035] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0036] The above describes the present invention and its embodiments. Such description is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the present invention, design similar structural modes and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A highway construction and maintenance equipment, characterized in that: The invention comprises a vehicle frame (34), a road milling structure (1) is fixedly mounted on the front end of the vehicle frame (34), the road milling structure (1) is fixedly connected to a gravel collecting device (2), a fixedly connected milling road hammer pressing structure (3) is provided at the end of the vehicle frame (34), the gravel collecting device (2) is arranged between the road milling structure (1) and the milling road hammer pressing structure (3); the milling road hammer pressing structure (3) comprises a hammer pressing flat push structure (4) and a reciprocating hammer structure (5), the reciprocating hammer structure (5) is fixedly mounted on the vehicle frame (34), and the hammer pressing flat push structure (4) is connected to the reciprocating hammer structure (5).

2. A highway construction and maintenance equipment according to claim 1, characterized in that: The reciprocating hammer structure (5) comprises a crank (6), a connecting rod (7), a connecting bracket (8), an articulated bracket (9), a slide groove (10), a sleeve (11), a belt one (12), a belt shaft one (13) and a motor one (14); the motor one (14) is fixedly mounted in the road milling structure (1); the slide groove (10) and the road milling structure (1) are fixedly connected via a bracket; the belt shaft one (13) is rotatably mounted on a bracket fixedly connected to the slide groove (10); and the belt one (14) is fixedly mounted in the road milling structure (1). 2) is sleeved between the motor 1 (14) and the belt shaft 1 (13), the crank (6) is fixedly connected to the belt shaft 1 (13), the connecting rod (7) is engaged and rotatably connected to the crank (6), the connecting bracket (8) is fixedly connected to the connecting rod (7), the connecting bracket (8) slides up and down along the slide groove (10), the sleeve (11) is fixedly mounted on the hammer pressure push structure (4), the hinged bracket (9) is fixedly mounted on the side wall of the sleeve (11), and the connecting bracket (8) is connected to the hinged bracket (9).

3. A highway construction and maintenance equipment according to claim 2, characterized in that: The hammer-pressing flat-pushing structure (4) comprises a hard hammer (15), a soft hammer base (16), a side push plate (17), a push plate engaging flat groove (18), a flat groove engaging bracket (19), a vertical slot (20), a horizontal push bending plate (21), and a bending plate slide groove (22); the hard hammer (15) is fixedly mounted on the bottom wall of the sleeve (11); the soft hammer base (16) is fixedly mounted on the bottom wall of the hard hammer (15); the push plate engaging flat groove (18) is arranged on the hard hammer (15); On the side wall, the flat groove engaging bracket (19) slides horizontally along the push plate engaging flat groove (18), the side push plate (17) is fixedly mounted on the flat groove engaging bracket (19), the vertical slot (20) is fixedly set on the top wall of the hard hammer (15), the bending plate slide groove (22) is fixedly set in the hard hammer (15), the horizontal push bending plate (21) slides horizontally along the bending plate slide groove (22), and the horizontal push bending plate (21) is fixedly mounted on the side push plate (17).

4. A highway construction and maintenance equipment according to claim 3, characterized in that: A limit column (23) and a transverse push column (24) are provided on the bottom wall of the vehicle frame (34); the limit column (23) is slidably connected to the sleeve (11) by snap-fitting; the transverse push column (24) is slidably connected along the vertical slot (20); and the bottom wall of the transverse push column (24) is in contact with and connected to the transverse push bending plate (21).

5. A highway construction and maintenance equipment according to claim 4, characterized in that: The contact surfaces of the transverse push bending plate (21) and the transverse push column (24) are both configured as inclined surfaces, and a spring is provided between the side push plate (17) and the hard hammer (15).

6. A highway construction and maintenance equipment according to claim 5, characterized in that: The road milling structure (1) comprises a milling drum (25), a drum baffle (26), a second belt (27), a motor box (28), a second motor (29), a belt baffle (30), and a sinking cylinder (31). The sinking cylinder (31) is fixedly mounted on a vehicle frame (34). The motor box (28) is fixedly connected to the sinking cylinder (31). The second motor (29) is mounted in the motor box (28). The drum baffle (26) is fixedly connected to the motor box (28) via a bracket. The milling drum (25) is rotatably arranged in the drum baffle (26). The two ends of the belt (27) are sleeved on the second motor (29) and the milling drum (25). The two ends of the belt baffle (30) are respectively fixedly connected to the drum baffle (26) and the motor box (28).

7. A highway construction and maintenance equipment according to claim 6, characterized in that: The outside of the belt one (12) is also provided with a baffle one (38); the surface of the milling drum (25) is provided with a hook-shaped protrusion.

8. The highway construction and maintenance equipment according to claim 7, characterized in that: The crushed stone collection device (2) comprises a crushed stone collection shovel (32) and a collection telescopic cylinder (33); the collection telescopic cylinder (33) is fixedly mounted on a motor box (28); the crushed stone collection shovel (32) is fixedly connected to the collection telescopic cylinder (33); and the bottom wall of the crushed stone collection shovel (32) is configured as an inclined surface.

9. A highway construction and maintenance equipment according to claim 8, characterized in that: The vehicle frame (34) comprises a roller (35), a side wall bracket (36), and a top plate (37); the roller (35) rolls along the ground; the side wall bracket (36) is rotatably connected to the roller (35) by snap-fitting; the top plate (37) is fixedly connected to the side wall bracket (36); and a sinking cylinder (31) is provided on the bottom wall of the top plate (37).

10. A highway construction and maintenance equipment according to claim 9, characterized in that: A protrusion is provided on the outer wall of the belt baffle (30), and the protrusion is engaged with the side wall bracket (36).

Citation Information

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