Earthwork compacting device

Abstract

The invention discloses an earthwork compaction device, and relates to the technical field of slope construction. Comprising a mounting base, the mounting base is rotatably connected with a mounting frame, the side, away from the mounting base, of the mounting frame is slidably connected with a first supporting piece and a second supporting piece in a limiting mode, the first supporting piece and the second supporting piece are jointly provided with a roller, and a hydraulic motor is mounted at the position, in the roller, of the first supporting piece; an output shaft of the hydraulic motor is fixedly connected with an eccentric part through a flexible shaft, wherein the eccentric part is rotationally connected with the roller. According to the excavator, the mounting seat is rotationally connected with the mounting frame, so that the angle between the roller and the bucket rod of the excavator is adjustable, and therefore, when the excavator is used for driving the roller to compact the slope, the compaction surface of the roller on the slope is changed from a rectangle to an approximate sector, and the compaction area of the excavator on the slope at the same position is increased; and the moving frequency of the excavator is reduced, so that the slope compaction efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of slope construction technology, and in particular to an earthwork compaction device. Background Technology

[0002] A slope is a sloping structure with a specific gradient built on both sides of the roadbed to ensure its stability. During construction, a large amount of earth needs to be filled at predetermined locations to create the required slope and support, thereby effectively improving the stability and durability of the roadbed. During the filling process, to ensure the stability and seepage prevention performance of the slope, each layer of fill needs to be compacted to reduce porosity and increase soil density and shear strength. When compacting the slope, an excavator is used for initial leveling, and then an excavator equipped with a roller compactor is used to compact the surface soil layers. However, during the compaction process, because the rotation axis of the roller rammer needs to be kept parallel to the bottom of the slope, the excavator can only compact one row of soil layers on the slope at a time. After compacting that row of soil layers, the excavator needs to be moved a distance equal to the length of the roller rammer before compacting the next row of soil layers. This method is cumbersome, requiring workers to operate the excavator frequently. Furthermore, if the distance the excavator moves is greater than the length of the roller rammer, there will be missed compaction. Conversely, if the distance the excavator moves is less than the length of the roller rammer, it will increase the number of times the excavator moves, resulting in low efficiency in slope compaction. Summary of the Invention

[0003] This invention provides an earthwork compaction device to overcome the shortcomings of low efficiency in existing slope compaction work.

[0004] The technical solution is as follows: An earthwork compaction device includes a mounting base, a mounting frame rotatably connected to the mounting base, a first support member and a second support member slidably connected to the side of the mounting frame away from the mounting base, a roller being provided together by the first support member and the second support member, a hydraulic motor being installed inside the roller on the first support member, an eccentric member rotatably connected to the roller being fixed to the output shaft of the hydraulic motor via a flexible shaft, symmetrically distributed hydraulic telescopic rods being hinged to the mounting base, the telescopic ends of the hydraulic telescopic rods being hinged to the mounting frame, a flow control component for controlling the flow of hydraulic oil inside the hydraulic telescopic rods being provided near the mounting base on the mounting frame, and a pressure control component for maintaining constant pressure in the roller being provided inside the mounting frame.

[0005] Furthermore, the flow control assembly includes a control housing, which is fixedly connected to the mounting bracket on the side near the mounting base. A sealing cylinder is slidably connected within the control housing and is limited in position. A spring is fixedly connected between the side of the sealing cylinder away from the roller and the control housing. An extrusion member is slidably connected together with the sealing cylinder and the control housing. A spring is fixedly connected between the extrusion member and the side of the sealing cylinder near the roller. The extrusion member is in a pressing fit with the roller. The control housing, the sealing cylinder, and the extrusion member cooperate to form a communicating cavity. The hydraulic telescopic rod communicates with the communicating cavity through a conduit. The sealing cylinder is in a sealing fit with the conduit adjacent to the hydraulic telescopic rod. Hydraulic oil is stored in the hydraulic telescopic rod, the communicating cavity, and the adjacent conduit.

[0006] Furthermore, the pressure control assembly includes symmetrically distributed pressure-regulating cylinders. The pressure-regulating cylinders are fixed to the side of the mounting bracket near the mounting base. A piston rod is slidably connected to the side of the pressure-regulating cylinder away from the mounting base. The first support member and the second support member are respectively fixed to the adjacent piston rods. The pressure-regulating cylinder is fixed to and connected to an inlet pipe and an outlet pipe. A connecting hole communicating with the outlet pipe is provided inside the pressure-regulating cylinder. A sealing member that cooperates with the sealing of the adjacent connecting hole is slidably connected inside the pressure-regulating cylinder. An adjusting assembly for adjusting the sealing force of the adjacent sealing member on the adjacent connecting hole is provided inside the pressure-regulating cylinder near the adjacent sealing member.

[0007] Furthermore, the adjusting assembly includes an adjusting ring, which is slidably connected to an adjacent sealing member. A spring is fixed between the side of the adjusting ring away from the adjacent connecting hole and the adjacent sealing member. The constant pressure cylinder is rotatably connected to a rotating rod, which passes through the adjacent sealing member and is threadedly connected to the adjacent adjusting ring.

[0008] Furthermore, it also includes a preloading assembly for precompacting the slope. The preloading assembly includes a transmission component, which is rotatably connected to the second support component and a torsion spring is fixed between them. The transmission component is fixedly connected to a U-shaped component that is rotatably connected to the first support component. The second support component is provided with a detection component for detecting the slope angle.

[0009] Furthermore, the roller is symmetrically distributed with a limiting sliding connection. A ring-shaped spring is fixed between the side of the buffer ring away from its central axis and the roller. The first support member and the second support member are respectively rotatably connected to the adjacent buffer ring. The first support member and the second support member are both limited sliding and rotatably connected to the roller.

[0010] Furthermore, the detection component includes a swinging member rotatably connected to the second support member located inside the drum. An arc-shaped liquid bladder is fixedly connected inside the swinging member, and the arc-shaped liquid bladder is press-fitted with the transmission member. A connecting pipe communicating with the arc-shaped liquid bladder is fixedly connected to the side of the transmission member near the eccentric member. The connecting pipe is rotatably and sealed to the eccentric member. The eccentric member is provided with a flow hole, a transfer chamber, and a transmission hole connected in sequence. The flow hole communicates with the connecting pipe. A weight is slidably connected inside the eccentric member. A spring is fixedly connected between the side of the weight away from the rotation axis of the eccentric member and the eccentric member. A control component for controlling the flow of hydraulic oil between the flow hole and the transmission hole is provided inside the eccentric member.

[0011] Furthermore, the control component includes a sealing ring, which is slidably and sealingly connected to the flow hole. The sealing ring has a reset hole and a one-way valve. A connecting frame is fixedly connected to the side of the sealing ring near the transfer chamber. A fixing frame is fixedly connected to the transfer chamber. The fixing frame and the connecting frame are limited and slidably connected. A spring is fixedly connected between the fixing frame and the sealing ring. An elastic disc is fixedly connected to the side of the connecting frame away from the sealing ring. A flow control element is fixedly connected to the transmission hole.

[0012] Furthermore, the flow control element has a groove on the side near the elastic disc, and the diameter of the groove is larger than the diameter of the connecting frame on the side near the flow control element. There is a gap between the flow control element and the eccentric element, and the gap is sealed and fitted with the elastic disc.

[0013] Furthermore, the force of the elastic disc deformation is less than the elastic force of the spring between the sealing ring and the fixing frame.

[0014] The advantages and positive effects of this invention compared with the prior art are as follows: This invention uses a rotating connection between the mounting base and the mounting frame, making the angle between the roller and the excavator stick adjustable. Thus, when the excavator drives the roller to compact the slope, the compaction surface of the roller on the slope changes from rectangular to approximately fan-shaped, increasing the area of ​​the slope compacted by the excavator in the same position, reducing the number of times the excavator moves, and thereby improving the efficiency of slope compaction.

[0015] The distance between the mounting bracket and the roller is detected by the extrusion component to determine the positional relationship between the roller and the slope. After the roller and the slope are in full contact, the relative positions of the mounting base and the mounting bracket are locked by hydraulic oil to facilitate the compaction of the slope.

[0016] By cooperating with hydraulic oil and pressure valves, the pressure of the roller on the slope is kept stable, improving the uniformity of slope compaction. The U-shaped parts pre-compact the slope, reducing the probability of soil moving with the roller due to excessive compaction thickness during downward compaction. At the same time, it increases the maximum thickness of soil compacted in a single operation, reducing the number of compaction passes required at the same location on the slope, thereby improving the efficiency of slope compaction.

[0017] The amplitude of the roller is adjusted by adjusting the relative angle between the U-shaped component and the swing component to prevent the soil from "slipping" on the slope due to the large amplitude when the slope angle is large. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural cross-sectional view of the mounting frame and roller of the present invention; Figure 3 This is a three-dimensional structural diagram of the mounting base, mounting frame, and first support member of the present invention; Figure 4 Appendix to this invention Figure 3 Enlarged view of point A in the middle; Figure 5 This is a three-dimensional structural diagram of the sealing component, adjusting ring, and rotating rod of the present invention; Figure 6 This is an exploded view of the sealing component, adjusting ring, and rotating rod of the present invention; Figure 7 This is a three-dimensional structural diagram of the transmission component, U-shaped component, and buffer ring of the present invention; Figure 8 This is a three-dimensional structural cross-sectional view of the second support member, eccentric member, and swing member of the present invention; Figure 9 This is a three-dimensional structural diagram of the sealing ring, connecting frame, and fixing frame of the present invention; Figure 10 This is a three-dimensional structural diagram of the eccentric component, elastic disk, and flow control component of the present invention.

[0019] Wherein: 1-Mounting base, 2-Mounting frame, 3-First support component, 4-Second support component, 5-Roller, 6-Hydraulic motor, 7-Eccentric component, 8-Hydraulic telescopic rod, 9-Control shell, 10-Sealing cylinder, 101-Connecting cavity, 11-Extrusion component, 12-Pressure cylinder, 121-Inlet pipe, 122-Outlet pipe, 123-Connecting hole, 13-Piston rod, 14-Sealing component, 15-Adjusting ring, 16-Rotating rod, 17-Transmission component, 18-U-shaped component, 181-Buffer ring, 19-Swinging component, 20-Arc-shaped liquid bladder, 21-Connecting pipe, 211-Flow hole, 212-Transfer cavity, 213-Transmission hole, 22-Weight block, 23-Sealing ring, 24-Connecting frame, 25-Fixing frame, 26-Elastic disc, 27-Flow control component. Detailed Implementation

[0020] The following will be combined with the appendix Figure 1 To be continued Figure 10 The present invention is described in detail, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0021] When constructing a slope, an excavator is needed to initially level the slope, and then an excavator equipped with a roller rammer is used to compact the soil layer on the slope surface. However, during the compaction process, because the rotation axis of the roller rammer needs to be kept parallel to the bottom of the slope, the excavator can only compact one row of soil layers on the slope at a time. After compacting that row of soil layers, the excavator needs to be moved forward by the length of one roller rammer before compacting the next row of soil layers. This method is cumbersome, requires moving the excavator many times, and results in low efficiency of slope compaction work.

[0022] Example 1: An earthwork compaction device, please refer to... Figure 1-Figure 3 The system includes a mounting base 1, a mounting frame 2 rotatably connected to the lower center of the mounting base 1, and a first support member 3 and a second support member 4 slidably connected to the lower parts of the left and right sides of the mounting frame 2, respectively, with the first support member 3 and the second support member 4 together providing a roller 5. A hydraulic motor 6 is installed on the right side of the first support member 3, and the hydraulic motor 6 is located inside the roller 5. The output shaft of the hydraulic motor 6 is fixed to an eccentric member 7 through a flexible shaft. The flexible shaft is used to reduce the vibration of the eccentric member 7 transmitted to the hydraulic motor 6. The eccentric member 7 is rotatably connected to the roller 5. Two hydraulic telescopic rods 8 are hinged to the lower side of the mounting base 1, and the telescopic ends of the hydraulic telescopic rods 8 are hinged to the upper side of the mounting frame 2. A flow control component for controlling the flow of hydraulic oil inside the hydraulic telescopic rods 8 is provided in the middle of the upper side of the mounting frame 2. A pressure control component for maintaining a constant pressure in the roller 5 is provided inside the mounting frame 2.

[0023] Please refer to Figure 3 and Figure 4The flow control assembly includes a control housing 9, which is fixed to the middle of the upper side of the mounting frame 2. A sealing cylinder 10 is connected to the upper part of the control housing 9 with upper and lower limits and sealing sliding connection. A spring is fixed between the upper side of the sealing cylinder 10 and the control housing 9. An extrusion member 11 is jointly and sealingly slidably connected to the sealing cylinder 10 and the control housing 9. A ball is connected to the lower part of the extrusion member 11. A spring is fixed between the extrusion member 11 and the lower side of the sealing cylinder 10. The elastic coefficient of the spring between the extrusion member 11 and the sealing cylinder 10 is greater than that between the sealing cylinder 10 and the control housing 9. The ball at the lower part of the extrusion member 11 is squeezed and engaged with the roller 5 to detect the distance between the roller 5 and the lower middle side of the mounting frame 2. The control housing 9, the sealing cylinder 10 and the extrusion member 11 cooperate to form a connecting cavity 101. The hydraulic telescopic rod 8 is connected to the connecting cavity 101 through a conduit. The sealing cylinder 10 is sealed and engaged with the conduit adjacent to the hydraulic telescopic rod 8. Hydraulic oil is stored in the hydraulic telescopic rod 8, the connecting cavity 101 and the adjacent conduit.

[0024] Please refer to Figure 1-Figure 3 , Figure 5 and Figure 6 The pressure control assembly includes two symmetrically distributed pressure cylinders 12, which are fixed to the left and right sides of the upper part of the mounting frame 2 respectively. The lower part of the pressure cylinder 12 is slidably connected to a piston rod 13. The first support 3 and the second support 4 are fixed to the adjacent piston rod 13 respectively. The middle part of the upper side of the pressure cylinder 12 is fixed to and connected to an inlet pipe 121. The pressure cylinder 12 is fixed to and connected to a drain pipe 122. Both the inlet pipe 121 and the drain pipe 122 pass through the mounting frame 2 and are fixed to it. The upper part of the pressure cylinder 12 is provided with a connecting hole 123, which is connected to the adjacent drain pipe 122. A sealing element 14 is slidably connected inside the pressure cylinder 12. The sealing element 14 is sealed and cooperates with the adjacent connecting hole 123 to maintain the pressure of the hydraulic oil inside the pressure cylinder 12. The upper part of the pressure cylinder 12 is provided with an adjustment assembly for adjusting the sealing force of the adjacent sealing element 14 on the adjacent connecting hole 123.

[0025] Please refer to Figure 5 and Figure 6 The adjustment assembly includes an adjustment ring 15, which is slidably and sealingly connected to the adjacent sealing member 14. A spring is fixed between the side of the adjustment ring 15 away from the adjacent connecting hole 123 and the adjacent sealing member 14. A rotating rod 16 is rotatably and sealingly connected to the side of the pressure cylinder 12 away from the adjacent connecting hole 123. The rotating rod 16 passes through the adjacent sealing member 14 and is threadedly connected to the adjacent adjustment ring 15, and is used to adjust the compression degree of the spring between the sealing member 14 and the adjacent adjustment ring 15 at the initial stage.

[0026] When slope compaction is required, workers first install the device on the excavator's boom and connect the hydraulic motor 6, inlet pipe 121, and outlet pipe 122 to the excavator's hydraulic system. Then, they rotate the two rotating rods 16, which, through threads, move the adjacent adjusting ring 15, adjusting the initial spring force of the adjacent spring between the adjusting ring 15 and the adjacent sealing member 14. This initial spring force is then made consistent with the compressive force exerted on the slope by the roller 5, excluding its own weight. The excavator is then started, activating its hydraulic system and causing hydraulic oil to circulate between the hydraulic motor 6 and the pressure regulating cylinder 12 (hereinafter referred to as the pressure regulating cylinder on the left). (Taking cylinder 12 as an example) During internal circulation, the output shaft of the hydraulic motor 6 rotates and drives the eccentric component 7 to rotate through the flexible shaft. At the same time, the hydraulic oil entering the pressure cylinder 12 through the inlet pipe 121 pushes the piston rod 13 downward until the pressure of the hydraulic oil in the pressure cylinder 12 is greater than the elastic force of the adjacent spring of the sealing component 14. Then, the hydraulic oil in the pressure cylinder 12 pushes the sealing component 14 to the right and compresses the adjacent spring of the sealing component 14, so that the sealing component 14 releases the blockage of the connecting hole 123. Subsequently, the hydraulic oil in the pressure cylinder 12 flows into the hydraulic system of the excavator through the connecting hole 123 and the drain pipe 122.

[0027] After starting the excavator, the worker controls it to move the device to the bottom of the slope. Then, the worker controls the excavator to make the roller 5 contact the bottom of the slope. After the roller 5 contacts the bottom of the slope and stops moving, the worker controls the mounting base 1 to continue moving downward. The mounting base 1 presses the mounting frame 2 downward, causing the mounting frame 2 to move downward relative to the roller 5. The roller 5 presses the extrusion component 11 upward. The extrusion component 11 pushes the adjacent sealing cylinder 10 upward through the adjacent spring and compresses the adjacent spring of the sealing cylinder 10, reducing the volume of the connecting cavity 101 and separating the adjacent conduits. At this time, the telescopic end of the hydraulic telescopic rod 8 cannot move, that is, the mounting base 1 and the mounting frame 2 are in a relatively stationary state. Then, the worker controls the excavator to make the roller 5 roll upward along the slope. When the roller 5 is compacting the slope, the rotation of the eccentric component 7 provides vibration to the roller 5, improving the compaction effect on the slope.

[0028] During the rolling of roller 5 along the slope, due to differences in worker skill, the squeezing force exerted by roller 5 on different parts of the slope varies. When the mounting frame 2 moves downward relative to roller 5, roller 5, through the first support member 3, squeezes piston rod 13 into pressure cylinder 12, reducing the volume of hydraulic oil stored in pressure cylinder 12. At this time, sealing member 14 is further squeezed, compressing the spring adjacent to sealing member 14, allowing excess hydraulic oil to enter the hydraulic system through connecting hole 123 and drain pipe 122. However, under the action of the spring adjacent to sealing member 14, the squeezing force of hydraulic oil in pressure cylinder 12 on piston rod 13 remains unchanged. When the mounting frame 2 moves upward relative to roller 5, roller 5, through the first support member 3, squeezes piston rod 13 into pressure cylinder 12. 13 moves outward from the constant pressure cylinder 12, increasing the volume inside the constant pressure cylinder 12. At this time, the pressure of the hydraulic oil inside the constant pressure cylinder 12 decreases. The sealing component 14 resets under the action of its adjacent spring and blocks the connecting hole 123. As the hydraulic oil in the hydraulic system continues to enter the constant pressure cylinder 12 through the inlet pipe 121, the pressure of the hydraulic oil inside the constant pressure cylinder 12 gradually recovers and overcomes the elastic force of the adjacent spring of the sealing component 14. This causes the hydraulic oil in the hydraulic system to flow back and forth along the inlet pipe 121, the constant pressure cylinder 12, the connecting hole 123, and the drain pipe 122. In this way, during the process of the worker controlling the roller 5 to compact the slope, the compaction force of the roller 5 on the slope is kept stable, thereby improving the uniformity of the slope compaction.

[0029] When the worker controls the roller 5 to move to the top of the slope, the worker controls the excavator to make the roller 5 lose contact with the slope. At this time, the first support 3, the second support 4, and the roller 5 move under their own weight and the thrust of the piston rod 13 and return to their original position relative to the mounting frame 2. This causes the extrusion member 11 and the sealing cylinder 10 to move down and return to their original position under the return action of the adjacent springs of the sealing cylinder 10. The two adjacent conduits are reconnected to each other through the connecting cavity 101. Then, the worker controls the boom of the excavator to rotate and moves the roller 5 a distance equal to the length of the roller 5 along the slope, controlling the roller 5 to move down and gradually contact the slope. Since the roller 5 is not parallel to the bottom of the slope at this time... Therefore, when the roller 5 contacts the slope, one side of the roller 5 contacts the slope first and stops moving. Then, the roller 5 drives the mounting frame 2 to swing relative to the mounting base 1 through the first support member 3 and the second support member 4 (this article takes the clockwise swing of the mounting frame 2 relative to the mounting base 1 as an example, and the rotation angle of this embodiment is from front to back), so that the telescopic end of the left hydraulic telescopic rod 8 retracts and the telescopic end of the right hydraulic telescopic rod 8 extends. The hydraulic oil in the right hydraulic telescopic rod 8 enters the left hydraulic telescopic rod 8 through the adjacent conduit and the connecting cavity 101 until the roller 5 is in complete contact with the slope, at which point the roller 5 and the mounting frame 2 stop swinging.

[0030] After the mounting frame 2 stops swinging, repeat the above steps to move the mounting frame 2 down relative to the roller 5. Separate the two adjacent guide pipes again through the sealing cylinder 10 to keep the mounting base 1 and the mounting frame 2 in a fixed state. Then, compact the slope. The worker then continues to control the boom of the excavator to rotate so that the compaction surface of the roller 5 on the slope after a single movement of the excavator is approximately fan-shaped. The worker then controls the excavator to move and compact the remaining area of ​​the slope (after compaction to a certain extent, the change in soil thickness will decrease if the compaction force remains unchanged, so the compacted fan-shaped areas can overlap without affecting the compaction effect). By increasing the area of ​​the slope compacted after a single movement of the excavator, the number of times the excavator is moved is reduced, thereby improving the efficiency of the slope compaction work.

[0031] After the slope is compacted, repeat the above steps to reset the roller 5 relative to the mounting frame 2. Then, the worker stops the excavator's hydraulic system, causing the output shaft of the hydraulic motor 6 to stop rotating. At the same time, the pressure of the hydraulic oil in the pressure cylinder 12 decreases. Then, the worker removes the device from the excavator as needed.

[0032] It should be noted that in Embodiment 1, the arrangement relationship between the first support member 3 and the second support member 4 and the roller 5 can be regarded as a rotational connection. In subsequent embodiments, the connection relationship between the first support member 3 and the second support member 4 and the roller 5 is a limited sliding and rotational connection.

[0033] When using a roller rammer to compact a slope, because the soil on the slope is loose, if the roller rammer compacts a large thickness in a single pass, some soil will move with the roller rammer, resulting in uneven compaction on different parts of the slope. Therefore, it is usually necessary to compact the slope layer by layer. This method requires workers to control the roller rammer to move back and forth on the same row of the slope, which results in low compaction efficiency.

[0034] Example 2: Based on Example 1, please refer to... Figure 1 , Figure 2 and Figure 7 It also includes a preloading assembly for precompacting the slope. The preloading assembly includes a transmission component 17, which is rotatably connected to the second support component 4. A torsion spring is fixed between the right side of the second support component 4 and the transmission component 17. A U-shaped component 18 is fixedly connected to the transmission component 17. The U-shaped component 18 is rotatably connected to the first support component 3. A detection component for detecting the slope angle is provided on the left side of the second support component 4.

[0035] Please refer to Figure 7The roller 5 has two buffer rings 181 that are symmetrically distributed on the left and right sides and are slidably connected to the roller 5. Several springs are fixedly connected to the outer side of the buffer rings 181 and the roller 5. The first support member 3 and the second support member 4 are rotatably connected to the adjacent buffer rings 181 respectively. The first support member 3 and the second support member 4 are slidably connected to the roller 5 and are rotatably connected.

[0036] Please refer to Figure 7 and Figure 8 The detection assembly includes a swing element 19, which is an eccentric component used to maintain a vertical state. The swing element 19 is rotatably connected to the left side of the second support 4 and is located inside the roller 5. An arc-shaped liquid bladder 20 is fixedly connected to the front part of the swing element 19. The arc-shaped liquid bladder 20 is press-fitted with the transmission component 17 to detect the relative rotation angle between the transmission component 17 and the swing element 19. A connecting pipe 21 is fixedly connected to the left side of the transmission component 17. The connecting pipe 21 communicates with the arc-shaped liquid bladder 20 and the eccentric component 4. The right side is sealed and rotated. The eccentric part 7 is provided with a flow hole 211, a transfer cavity 212 and a transmission hole 213 connected in sequence from right to left. The flow hole 211 is connected to the left side of the connecting pipe 21. The eccentric part 7 is sealed and slidably connected with a weight 22 at the eccentric part in the middle. A spring is fixed between the upper side of the weight 22 and the eccentric part 7, and the elastic force of the spring is greater than the weight of the weight 22. The eccentric part 7 is provided with a control component for controlling the flow of hydraulic oil between the flow hole 211 and the transmission hole 213.

[0037] Please refer to Figures 8-10 The control component includes a sealing ring 23, which is slidably connected to the left side of the flow hole 211. The sealing ring 23 has a reset hole for resetting the sealing ring 23. A one-way valve that connects from left to right is installed on the sealing ring 23. A connecting frame 24 is fixedly connected to the left side of the sealing ring 23. A fixing frame 25 is fixedly connected to the left side of the transfer chamber 212. The fixing frame 25 and the connecting frame 24 are left and right limited and slidably connected. A spring is fixedly connected between the right side of the fixing frame 25 and the sealing ring 23. An elastic disc 26 is fixedly connected to the left side of the connecting frame 24. A flow control element 27 is fixedly connected to the right side of the transmission hole 213. A groove is provided in the middle of the right side of the flow control element 27, and the diameter of the groove is larger than the diameter of the left side of the connecting frame 24. There is a gap between the flow control element 27 and the eccentric element 7. This gap is sealed and cooperated with the elastic disc 26. The deformation force of the elastic disc 26 is less than the elastic force of the spring between the sealing ring 23 and the fixing frame 25.

[0038] When the worker installs the device on the excavator, the U-shaped part 18 is positioned on the side closest to the excavator. The excavator is then moved to the bottom of the slope, and the roller 5 is then moved down and contacts the bottom of the slope. During the downward movement of the roller 5, the U-shaped part 18 moves down together and first contacts the slope. As the roller 5 continues to move down, the U-shaped part 18 moves along the slope and drives the transmission part 17 to rotate clockwise (the rotation angle in this embodiment is from left to right). This twists the torsion spring adjacent to the transmission part 17 until the roller 5 contacts the ground. Then, the steps in Embodiment 1, such as before the excavator is started and the mounting frame 2 moving down relative to the roller 5 and compacting the slope, are repeated.

[0039] When compacting the slope, the eccentric component 7 rotates and drives the roller 5 to vibrate. In order to reduce the impact of the vibration of the roller 5 on the connection between the mounting base 1 and the excavator, the roller 5 moves relative to the first support 3 and the second support 4 when the roller 5 vibrates. The first support 3 and the second support 4 drive the adjacent buffer ring 181 to move and compress the spring adjacent to the buffer ring 181. This reduces the force of the vibration transmitted from the roller 5 to the first support 3 and the second support 4, thereby reducing the impact of the vibration on the connection between the mounting base 1 and the excavator.

[0040] As the roller 5 moves up the slope, the soil on the slope will not move up with the roller 5 due to its own weight. When the roller 5 moves down the slope, the U-shaped part 18 maintains the compression of the slope under the action of the adjacent torsion spring of the transmission part 17. In this way, the soil on the slope is pre-compacted, which reduces the probability that the soil will move with the roller 5 when the roller 5 compacts the slope in subsequent compaction. At the same time, since the depth of soil compaction by the roller 5 in a single operation is deeper than that of the traditional compaction method, the number of times the roller 5 compacts the slope is reduced, thus improving the working efficiency of slope compaction.

[0041] When compacting different slopes, to reduce the probability of landslides due to changes in slope angle, the amplitude of roller 5 needs to be appropriately adjusted. The specific operation is as follows: During the process where both the U-shaped component 18 and roller 5 are in contact with the slope, the swing component 19 remains vertical under its own weight. When the U-shaped component 18 drives the transmission component 17 to rotate clockwise, the transmission component 17 rotates relative to the swing component 19 and squeezes the arc-shaped liquid bladder 20. This causes the hydraulic oil inside the arc-shaped liquid bladder 20 to enter the flow hole 211 through the connecting pipe 21. The hydraulic oil in the flow hole 211 squeezes the sealing ring 23 to the left, compressing the spring adjacent to the sealing ring 23, causing the sealing ring 23 to slide out of the flow hole 211 and releasing the seal on the flow hole 211. When the blocking ring 23 moves to the left, the blocking ring 23 presses the middle part of the elastic disc 26 into the groove of the flow control element 27 through the connecting frame 24, causing the elastic disc 26 to deform and release the blockage of the adjacent gap of the flow control element 27. At this time, the hydraulic oil in the flow hole 211 enters the transmission hole 213 through the transfer chamber 212 and the gap adjacent to the flow control element 27. The hydraulic oil in the transmission hole 213 pushes the weight 22 to move upward and compresses the spring adjacent to the weight 22, thereby increasing the eccentric mass of the eccentric element 7 (initially the eccentric mass of the eccentric element 7 is the minimum value, and it will be adjusted to a suitable eccentric mass according to the size of the slope angle). This increases its amplitude while keeping its rotation speed constant, improves the density and uniformity of the slope soil, and thus improves the efficiency of slope compaction.

[0042] After the U-shaped part 18 and the roller 5 are in contact with the slope, the transmission part 17 and the swinging part 19 are relatively stationary, and the hydraulic oil in the flow hole 211 stops flowing. At this time, the sealing ring 23 moves to the right and resets under the action of its adjacent spring, re-sealing the flow hole 211. At the same time, the sealing ring 23 drives the connecting frame 24 to move and causes the elastic disc 26 to recover its deformation, so that the elastic disc 26 re-seals the gap adjacent to the flow control part 27. Then the worker starts the hydraulic system of the excavator, so that the output shaft of the hydraulic motor 6 drives the eccentric part 7 to rotate through the flexible shaft. The rotation of the eccentric part 7 causes the weight 22 to be subjected to centrifugal force, and there is a tendency to draw the hydraulic oil in the transfer chamber 212 through the transmission hole 213. However, at this time, the elastic disc 26 blocks the gap adjacent to the flow control part 27, so the hydraulic oil in the transmission hole 213 remains unchanged, that is, the eccentric part 7 remains stationary relative to the weight 22.

[0043] After the slope compaction is completed, the workers repeat the steps of Example 1 to make the roller 5 and the U-shaped part 18 lose contact with the slope. Then, the U-shaped part 18 and the transmission part 17 rotate counterclockwise and reset under the action of the adjacent torsion spring of the transmission part 17. During the reset process of the transmission part 17, the transmission part 17 rotates counterclockwise relative to the swing part 19 and pulls the arc-shaped liquid bladder 20 to reset. At the same time, the weight 22 moves towards the rotation axis of the eccentric part 7 under the action of its adjacent spring, squeezing the hydraulic oil in the transmission hole 213 through the gap adjacent to the flow control part 27 and pushing the elastic disc 26 to deform. This causes the hydraulic oil in the transmission hole 213 to enter the flow hole 211 through the one-way valve adjacent to the transfer chamber 212 and the sealing ring 23, and finally return to the arc-shaped liquid bladder 20 through the connecting pipe 21, so that the weight 22 and the arc-shaped liquid bladder 20 are reset. After the weight 22 is reset, the elastic disc 26 returns to its original deformation and reset.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.

Claims

1. An earthwork compaction device, characterized in that: The device includes a mounting base (1), which is rotatably connected to a mounting frame (2). The mounting frame (2) is slidably connected to a first support member (3) and a second support member (4) on the side away from the mounting base (1). The first support member (3) and the second support member (4) are provided with a roller (5). A hydraulic motor (6) is installed in the roller (5) on the first support member (3). The output shaft of the hydraulic motor (6) is fixed to an eccentric member (7) that is rotatably connected to the roller (5) via a flexible shaft. The mounting base (1) is hinged with symmetrically distributed hydraulic telescopic rods (8). The telescopic end of the hydraulic telescopic rods (8) is hinged to the mounting frame (2). The mounting frame (2) is provided with a flow control component for controlling the flow of hydraulic oil in the hydraulic telescopic rods (8) near the mounting base (1). The mounting frame (2) is provided with a pressure control component for maintaining a constant pressure in the roller (5).

2. The earthwork compaction device according to claim 1, characterized in that: The flow control assembly includes a control housing (9), which is fixed to the mounting bracket (2) on the side near the mounting base (1). A sealing cylinder (10) is slidably and sealingly connected inside the control housing (9). A spring is fixed between the side of the sealing cylinder (10) away from the roller (5) and the control housing (9). An extrusion member (11) is slidably and sealingly connected to the sealing cylinder (10) and the control housing (9). The extrusion member (11) is close to the sealing cylinder (10) near the roller (5). A spring is fixed between one side of the roller (5). The extrusion member (11) is extruded and fitted with the roller (5). The control shell (9), the sealing cylinder (10), and the extrusion member (11) cooperate to form a connecting cavity (101). The hydraulic telescopic rod (8) is connected to the connecting cavity (101) through a conduit. The sealing cylinder (10) is sealed and fitted with the conduit adjacent to the hydraulic telescopic rod (8). Hydraulic oil is stored in the hydraulic telescopic rod (8), the connecting cavity (101), and the adjacent conduit.

3. The earthwork compaction device according to claim 2, characterized in that: The pressure control assembly includes symmetrically distributed pressure-regulating cylinders (12). The pressure-regulating cylinders (12) are fixed to the side of the mounting bracket (2) near the mounting base (1). A piston rod (13) is slidably connected to the side of the pressure-regulating cylinder (12) away from the mounting base (1). The first support member (3) and the second support member (4) are fixedly connected to the adjacent piston rod (13). The pressure-regulating cylinder (12) is fixedly connected to and connected to an inlet pipe (121) and a drain pipe (122). A connecting hole (123) communicating with the drain pipe (122) is provided in the pressure-regulating cylinder (12). A sealing member (14) that cooperates with the adjacent connecting hole (123) is slidably connected in the pressure-regulating cylinder (12). An adjustment assembly for adjusting the sealing force of the adjacent sealing member (14) on the adjacent connecting hole (123) is provided in the pressure-regulating cylinder (12) near the adjacent sealing member (14).

4. The earthwork compaction device according to claim 3, characterized in that: The adjustment assembly includes an adjustment ring (15) which is slidably connected to the adjacent sealing member (14). A spring is fixed between the side of the adjustment ring (15) away from the adjacent connecting hole (123) and the adjacent sealing member (14). The pressure cylinder (12) is rotatably connected to a rotating rod (16). The rotating rod (16) passes through the adjacent sealing member (14) and is threadedly connected to the adjacent adjustment ring (15).

5. The earthwork compaction device according to claim 3, characterized in that: It also includes a preloading component for precompacting the slope. The preloading component includes a transmission component (17), which is rotatably connected to the second support component (4) and a torsion spring is fixed between them. The transmission component (17) is fixedly connected to a U-shaped component (18) that is rotatably connected to the first support component (3). The second support component (4) is provided with a detection component for detecting the slope angle.

6. The earthwork compaction device according to claim 5, characterized in that: The roller (5) is connected to a symmetrically distributed buffer ring (181) in a limiting sliding connection. A ring-shaped spring is fixed between the side of the buffer ring (181) away from its central axis and the roller (5). The first support member (3) and the second support member (4) are respectively rotatably connected to the adjacent buffer ring (181). The first support member (3) and the second support member (4) are both limited sliding and rotatably connected to the roller (5).

7. The earthwork compaction device according to claim 6, characterized in that: The detection assembly includes a swinging member (19), which is rotatably connected to the second support member (4) located inside the roller (5). An arc-shaped liquid bladder (20) is fixedly connected inside the swinging member (19). The arc-shaped liquid bladder (20) is press-fitted with the transmission member (17). A connecting pipe (21) connected to the arc-shaped liquid bladder (20) is fixedly connected to the side of the transmission member (17) near the eccentric member (7). The connecting pipe (21) is rotatably and sealed to the eccentric member (7). The component (7) is provided with a flow hole (211), a transfer chamber (212) and a transmission hole (213) connected in sequence. The flow hole (211) is connected to the connecting pipe (21). A weight (22) is sealed and slidably connected inside the eccentric component (7). A spring is fixed between the side of the weight (22) away from the rotation axis of the eccentric component (7) and the eccentric component (7). A control component for controlling the flow of hydraulic oil between the flow hole (211) and the transmission hole (213) is provided inside the eccentric component (7).

8. The earthwork compaction device according to claim 7, characterized in that: The control component includes a sealing ring (23), which is slidably connected to the flow hole (211). The sealing ring (23) is provided with a reset hole. A one-way valve is installed on the sealing ring (23). A connecting frame (24) is fixedly connected to the side of the sealing ring (23) near the transfer chamber (212). A fixing frame (25) is fixedly connected to the transfer chamber (212). The fixing frame (25) and the connecting frame (24) are limited and slidably connected. A spring is fixedly connected between the fixing frame (25) and the sealing ring (23). An elastic disc (26) is fixedly connected to the side of the connecting frame (24) away from the sealing ring (23). A flow control element (27) is fixedly connected to the transmission hole (213).

9. The earthwork compaction device according to claim 8, characterized in that: The flow control element (27) has a groove on the side near the elastic disk (26), and the diameter of the groove is larger than the diameter of the connecting frame (24) on the side near the flow control element (27). There is a gap between the flow control element (27) and the eccentric element (7), and the gap is sealed and cooperated with the elastic disk (26).

10. The earthwork compaction device according to claim 8, characterized in that: The force of the deformation of the elastic disc (26) is less than the elastic force of the spring between the sealing ring (23) and the fixing frame (25).

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