Mechanized subgrade trenching device

Abstract

The application discloses a mechanized roadbed trench soil device, which comprises a collecting groove installed at the front end of a trolley and a forming structure arranged at the side of the trolley. The bottom of the collecting groove is provided with a conveying belt for conveying soil to the side. The forming structure comprises a liftable forming groove arranged at the side of the trolley, an arc-shaped plate rotatably connected between the forming groove and the side plate and a lifting roller arranged in the forming groove and liftable in the forming groove. The forming groove is liftable, and the arc-shaped plate and the lifting roller are synchronously swung and lifted under the action of a linkage mechanism. When a road shoulder is paved, soil is poured into the collecting groove through a excavator, the conveying belt at the bottom of the collecting groove continuously conveys soil to the forming groove, the forming groove is lowered, the arc-shaped plate is swung downward under the action of the linkage mechanism, the lifting roller is lowered, the soil is extruded downward, and the road shoulder is formed in the forming groove. The soil is formed once in the paving process, and the construction efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of road construction technology, specifically a mechanized roadbed backfilling device. Background Technology

[0002] Traditional earth shoulder construction has always relied on manual soil preparation, which cannot guarantee accuracy and compaction. Moreover, it requires a large amount of manpower, with a maximum of 20 meters of paving per day by manual labor. In contrast, mechanized roadbed preparation technology requires only 3 people to operate one machine and can complete 120 meters of paving work in one hour. This method is less efficient and more labor-intensive. Summary of the Invention

[0003] The purpose of this invention is to solve the above-mentioned problems and provide a mechanized roadbed soil preparation device that forms the soil in one step during the paving process, greatly improving construction efficiency.

[0004] The technical solution adopted by this invention to solve its technical problem is: A mechanized roadbed soil preparation device includes a collection trough installed at the front end of a trolley and a forming structure set on the side of the trolley. The bottom of the collection trough is provided with a conveyor belt that transports soil to the side. The forming structure includes a lifting forming trough set on the side of the trolley, an arc-shaped plate set in the forming trough and rotatably connected between its upper end and the side plate, and a lifting roller set in the forming trough and lifting within the forming trough. When the forming trough is lifted, the arc-shaped plate and the lifting roller are driven to swing synchronously and rise synchronously under the action of a linkage mechanism. The linkage mechanism includes a swing arm with one end rotatably connected to the side of the trolley, a drive rod passing through the swing arm, a lifting frame with both ends rotatably connected to the lifting rollers, and a first connecting rod with its lower end rotatably connected to the arc-shaped plate. The upper end of the first connecting rod is hinged to the front end of the drive rod, and the rear end of the first connecting rod is connected to the lifting frame. The swing arm is connected in a manner where a first elongated hole is provided in the middle position, the drive rod passes through the first elongated hole, and the swing arm is rotatably connected to the upper end of the inner side of the forming groove.

[0005] Furthermore, the front and rear sides of the collection trough are inclined surfaces, and the right side of the collection trough has an opening corresponding to the position of the conveyor belt.

[0006] Furthermore, the surface of the conveyor belt is uniformly provided with a plurality of baffles.

[0007] Furthermore, the inner side of the forming groove is provided with a fixing plate installed on the side of the trolley, the inner side of the fixing plate is provided with a lifting plate fixed to the side of the forming groove and slidably connected to the fixing plate, and the upper end of the fixing plate is provided with a hydraulic cylinder for driving the lifting plate to rise and fall.

[0008] Furthermore, one end of the swing arm is rotatably connected to the upper end of the fixed plate.

[0009] Furthermore, the two side walls of the forming groove are provided with second elongated holes, the two ends of the lifting roller shaft extend out of the second elongated holes and move up and down along the second elongated holes, the lifting frame is a portal frame, and the lower ends of the two legs of the lifting frame are rotatably connected to the lifting roller shaft.

[0010] Furthermore, a guide plate is provided at the front end of the inner side plate of the forming groove.

[0011] Furthermore, the outer side plate of the forming groove is provided with an inclined plate whose upper end is rotatably connected to the outer side plate of the forming groove.

[0012] Furthermore, the outer side of the inclined plate is connected to one end of the outer side of the swing rod via a second connecting rod, the lower end of the second connecting rod is rotatably connected to the inclined plate, and the upper end of the second connecting rod is rotatably connected to one end of the outer side of the swing rod.

[0013] The beneficial effects of this invention are: 1. This invention includes a collection trough installed at the front end of a trolley and a forming structure set on the side of the trolley. The bottom of the collection trough is provided with a conveyor belt for transporting soil to the side. The forming structure includes a lifting and lowering forming trough set on the side of the trolley, an arc-shaped plate set in the forming trough and rotatably connected to the side plate at its upper end, and a lifting roller set in the forming trough and lifting and lowering within the forming trough. When the forming trough is raised and lowered, the arc-shaped plate and the lifting roller are driven to swing synchronously and rise and fall synchronously under the action of a linkage mechanism. When laying the road shoulder, the soil is poured into the collection trough by an excavator. The conveyor belt at the bottom of the collection trough continuously transports the soil to the side into the forming trough. The forming trough descends, and under the action of the linkage mechanism, the arc-shaped plate swings downward and the lifting roller descends, squeezing the soil downward, so that the road shoulder is formed in the forming trough. It integrates the functions of feeding, conveying, unloading and compaction, and the paving process is formed in one step, which greatly improves the construction efficiency.

[0014] 2. The linkage mechanism in this invention includes a swing arm with one end rotatably connected to the side of the trolley, a drive rod passing through the swing arm, a lifting frame with both ends rotatably connected to the lifting rollers, and a first connecting rod with its lower end rotatably connected to the arc-shaped plate. The upper end of the first connecting rod is hinged to the front end of the drive rod, and the rear end of the first connecting rod is connected to the lifting frame. A first elongated hole is provided in the middle of the swing arm, through which the drive rod passes. The swing arm is rotatably connected to the upper end of the inner side of the forming groove. When the forming groove descends, the swing arm swings downward accordingly. Under the action of the drive rod, the lifting frame and the first connecting rod descend synchronously, thereby causing the arc-shaped plate to swing downward, and the lifting rollers descend synchronously, thus squeezing the shoulder and ensuring that the shoulder has a regular forming shape in the forming groove. The swinging of the arc-shaped plate and the lifting of the lifting rollers are achieved through mechanical linkage, which has good reliability and low cost. The drive rod passing through the first elongated hole ensures that the swing arm will not lock with the drive rod. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the molding structure of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the molding structure of the present invention. Figure 2 ; Figure 4 This is a top view of the molded structure of the present invention; Figure 5 This is a schematic diagram of the collection tank structure of the present invention.

[0017] In the diagram: 1. Collection trough; 2. Conveyor belt; 3. Forming trough; 4. Arc plate; 5. Lifting roller; 6. Swing rod; 7. Drive rod; 8. Lifting frame; 9. First connecting rod; 10. First elongated hole; 11. Opening; 12. Baffle; 13. Fixing plate; 14. Lifting plate; 15. Hydraulic cylinder; 15. Second elongated hole; 16. Guide plate; 17. Inclined plate; 18. Second connecting rod; 19. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.

[0019] like Figure 1As shown, a mechanized roadbed soil preparation device includes a collection trough 1 installed at the front of a trolley and a forming structure disposed on the side of the trolley. The bottom of the collection trough 1 is equipped with a conveyor belt 2 for transporting soil to the side. Conveying rollers are located at both ends of the bottom of the collection trough 1. The conveyor belt 2 passes over the two conveying rollers and is driven by a motor. This is prior art and will not be described in detail here. The forming structure includes a lifting and lowering forming trough 3 disposed on the side of the trolley, an arc-shaped plate 4 disposed within the forming trough 3 and rotatably connected at its upper end to a side plate, and a lifting roller 5 disposed within the forming trough 3 and lifting within the forming trough 3. The forming trough 3 consists of two side plates. The system consists of two side panels, with the inner side panel being shorter than the outer side panel. The upper ends of the two side panels are connected as a single unit by a crossbar. When the forming trough 3 is raised and lowered, the arc-shaped plate 4 and the lifting roller 5 move synchronously under the action of a linkage mechanism. During shoulder paving, soil is poured into the collection trough 1 by an excavator. The conveyor belt 2 at the bottom of the collection trough 1 continuously transports soil to the side into the forming trough 3. As the forming trough 3 descends, the arc-shaped plate 4 swings downward under the action of the linkage mechanism, and the lifting roller 5 descends, compressing the soil downwards, thus shaping the shoulder within the forming trough 3. This system integrates feeding, conveying, unloading, and compaction functions, achieving one-time paving. The application of this technology in highway engineering effectively improves many problems in traditional earth shoulder construction, such as poor alignment, low efficiency, excessive machinery use, high labor costs, and substandard compaction. It not only achieves high compaction and good economic efficiency but also significantly improves construction efficiency.

[0020] like Figure 2 and Figure 3 As shown, the linkage mechanism includes a swing rod 6 with one end rotatably connected to the side of the trolley, a drive rod 7 passing through the swing rod 6, a lifting frame 8 with both ends rotatably connected to the lifting rollers 5, and a first connecting rod 9 with its lower end rotatably connected to the arc-shaped plate 4. The upper end of the first connecting rod 9 is hinged to the front end of the drive rod 7, and the rear end of the first connecting rod 9 is connected to the middle position of the upper end of the lifting frame 8. The swing rod 6 has a first elongated hole 10 in the middle position, through which the drive rod 7 passes. The swing rod 6 is rotatably connected to the upper end of the inner side of the forming groove 3. When the forming groove 3 descends, the swing rod 6 swings downward accordingly. Under the action of the drive rod 7, the lifting frame 8 and the first connecting rod 9 descend synchronously, thereby causing the arc-shaped plate 4 to swing downward, and the lifting rollers 5 to descend synchronously, thus squeezing the shoulder and ensuring that the shoulder has a regular forming shape in the forming groove 3. The swinging of the arc-shaped plate 4 and the lifting of the lifting rollers 5 are achieved through mechanical linkage, which has good reliability and low cost. The drive rod 7 passes through the first elongated hole 10 to ensure that the swing rod 6 will not lock with the drive rod 7.

[0021] like Figure 5As shown, the front and rear sides of the collection trough 1 are inclined surfaces, and the two inclined surfaces form a funnel-shaped structure, so that the soil can fall completely onto the conveyor belt. The right side of the collection trough 1 is provided with an opening 11 corresponding to the position of the conveyor belt 2. The conveyor belt transports the soil to the right through the opening 11 into the forming trough 3.

[0022] like Figure 5 As shown, the surface of the conveyor belt 2 is uniformly provided with a plurality of baffles 12.

[0023] like Figure 4 As shown, the inner side of the forming groove 3 is provided with a fixing plate 13 installed on the side of the trolley. The fixing plate 13 is fixed to the side of the trolley by a flange. The inner side of the fixing plate 13 is provided with a lifting plate 14 fixed to the side of the forming groove 3 and slidably connected to the fixing plate 13 by a guide rail slider pair. The upper end of the fixing plate 13 is provided with a hydraulic cylinder 15 that drives the lifting plate 14 to rise and fall. The cylinder body end of the hydraulic cylinder 15 is installed on the upper end of the fixing plate 13, and the piston rod end of the hydraulic cylinder 15 is connected to the lifting plate 14.

[0024] like Figure 3 As shown, one end of the inner side of the swing rod 6 is rotatably connected to the upper end of the fixed plate 13.

[0025] like Figure 2 As shown, the molding groove 3 has a second elongated hole 16 on both sides. The two ends of the lifting roller 5 extend out of the second elongated hole 16 and move up and down along the second elongated hole 16. The lifting frame 8 is a gate-shaped support. The lower ends of the two legs of the lifting frame 8 are rotatably connected to the lifting roller 5.

[0026] like Figure 4 As shown, a guide plate 17 is provided at the front end of the inner side plate of the forming groove 3.

[0027] like Figure 2 As shown, the outer side plate of the forming groove 3 is provided with an inclined plate 18 whose upper end is rotatably connected to the outer side plate of the forming groove 3.

[0028] like Figure 2 As shown, the outer side of the inclined plate 18 is connected to one end of the outer side of the swing rod 6 through a second connecting rod 19. The lower end of the second connecting rod 19 is rotatably connected to the inclined plate 18, and the upper end of the second connecting rod 19 is rotatably connected to one end of the outer side of the swing rod 6. When the swing rod 6 swings downward, it presses down on the inclined plate 18 through the second connecting rod 19, making the road shoulder slope more secure.

[0029] In the description of the present invention, it should be noted that the terms "left", "right", "up", "down", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0030] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

Claims

1. A mechanized roadbed soil preparation device, characterized in that, The system includes a collection trough (1) installed at the front end of the trolley and a molding structure set on the side of the trolley. The bottom of the collection trough (1) is provided with a conveyor belt (2) for conveying soil to the side. The molding structure includes a molding trough (3) that can be raised and lowered and set on the side of the trolley, an arc plate (4) set in the molding trough (3) and rotatably connected between the upper end and the side plate, and a lifting roller (5) set in the molding trough (3) and raised and lowered in the molding trough (3). When the molding trough (3) is raised and lowered, the arc plate (4) and the lifting roller (5) are driven to swing synchronously and rise and fall synchronously under the action of the linkage mechanism. The linkage mechanism includes a swing rod (6) with one end rotatably connected to the side of the trolley, a drive rod (7) passing through the swing rod (6), a lifting frame (8) with both ends rotatably connected to the lifting roller (5), and a first connecting rod (9) with the lower end rotatably connected to the arc plate (4). The upper end of the first connecting rod (9) is hinged to the front end of the drive rod (7), and the rear end of the first connecting rod (9) is connected to the lifting frame (8). A first elongated hole (10) is provided in the middle of the swing rod (6), and the drive rod (7) passes through the first elongated hole (10). The swing rod (6) is rotatably connected to the upper end of the inner side of the forming groove (3). The molding groove (3) is provided with a fixing plate (13) installed on the side of the trolley. The fixing plate (13) is provided with a lifting plate (14) fixed to the side of the molding groove (3) and slidably connected to the fixing plate (13). The upper end of the fixing plate (13) is provided with a hydraulic cylinder (15) for driving the lifting plate (14) to rise and fall. The outer side plate of the forming groove (3) is provided with an inclined plate (18) whose upper end is rotatably connected to the outer side plate of the forming groove (3); The outer side of the inclined plate (18) is connected to one end of the outer side of the swing rod (6) via a second connecting rod (19). The lower end of the second connecting rod (19) is rotatably connected to the inclined plate (18), and the upper end of the second connecting rod (19) is rotatably connected to one end of the outer side of the swing rod (6). The molding groove (3) has a second elongated hole (16) on both sides. The two ends of the lifting roller (5) extend out of the second elongated hole (16) and move up and down along the second elongated hole (16). The lifting frame (8) is a gate-shaped support. The lower ends of the two legs of the lifting frame (8) are rotatably connected to the lifting roller (5) shaft.

2. The mechanized roadbed backfilling device as described in claim 1, characterized in that, The front and rear sides of the collection trough (1) are inclined, and the right side of the collection trough (1) has an opening (11) corresponding to the position of the conveyor belt (2).

3. The mechanized roadbed backfilling device as described in claim 2, characterized in that, The surface of the conveyor belt (2) is uniformly provided with a number of baffles (12).

4. The mechanized roadbed backfilling device as described in claim 1, characterized in that, One end of the swing arm (6) is rotatably connected to the upper end of the fixed plate (13).

5. The mechanized roadbed backfilling device as described in claim 1, characterized in that, The inner side plate of the forming groove (3) is provided with a guide plate (17).

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