A ramp compactor

Abstract

The present application relates to the technical field of hydraulic engineering construction machinery, and particularly relates to a slope rolling device; the technical scheme: a slope rolling device, comprising a rolling device rack, a walking assembly is arranged below the rolling device rack, the walking assembly comprises at least two wheels and at least one track; the present application directly uses electromagnetic force as the source of rolling pressure, generates magnetic force perpendicular to the slope surface through the alternating magnetic field between the energized solenoid and the strong magnet, makes the rammer plate impact and roll the cushion material, completely eliminates the influence of the slope angle on the decomposition of the normal pressure, the device can adjust the current size of the alternating current, and the magnetic force strength is adjusted in real time, so that the rolling pressure can be flexibly adjusted according to the site compaction requirement in the construction process, the mechanical weight does not need to be changed or the rolling frequency needs to be increased, the rolling parameter optimization is no longer limited to the machine weight determined in the bidding stage, and the compaction requirement of different filling materials can be quickly adapted.

Description

Technical Field

[0001] This invention relates to the field of hydraulic engineering construction machinery technology, and in particular to a slope compaction device. Background Technology

[0002] During the construction of water conservancy projects, such as the foundation material of rockfill dams and the foundation material under the anti-seepage panels in the reservoir excavation area of ​​pumped storage power stations, slope cutting and slope compaction are required. Current slope compaction machinery includes vibratory rollers or vibratory plate compactors. Since the slope angle θ of the reservoir is a fixed value, the normal pressure on the slope is the decomposed force of the roller weight when compacting the foundation material, i.e., N=G*Cosθ (G is the self-weight of the roller). In order to achieve the compaction weight required by the design, the self-weight of the roller G can only be increased. This presents two problems. First, if the roller is too heavy, it will hinder transportation and construction, increasing construction difficulty and the traction force of the traction machine. If the roller is too light, the number of compaction passes needs to be increased to meet the design requirements for the dry density and compaction of the fill material, reducing construction efficiency and thus extending the construction period. Second, the weight of the roller is a fixed value, but the compaction parameters during construction, such as the weight of the compaction equipment and the number of compaction passes, need to be determined through on-site tests. However, the weight of the compaction equipment is basically determined during the bidding stage. If the weight of the compaction equipment needs to be adjusted during construction, it will be limited. If the roller weight determined in the early stage is too light, the number of compaction passes needs to be increased, thus making it impossible to optimize the construction period.

[0003] Existing slope compaction devices primarily rely on the machine's own weight to generate normal pressure on the slope. Since the slope angle is fixed, the actual pressure acting on the slope surface is only a component of the roller's weight. This necessitates a significant increase in the roller's own weight to achieve the designed compaction pressure. This weight-dependent approach presents multiple drawbacks: excessively heavy rollers significantly increase transportation difficulty and the load on traction equipment. Furthermore, the weight of the compaction equipment is fixed during the bidding stage, making it impossible to flexibly adjust the compaction pressure based on on-site compaction test results during construction. If the initially determined roller weight is too low, it can only be compensated for by increasing the number of compaction passes, thus extending the construction period and reducing efficiency. In addition, in narrow filling areas such as the transition material at the bottom of the dam foundation, traditional large compaction machinery cannot operate due to insufficient passage width, often requiring additional filling material to accommodate the machinery, resulting in material waste or necessitating adjustments to compaction parameters and increased on-site testing workload, severely impacting construction progress. Summary of the Invention

[0004] In order to overcome the problem that existing slope compaction devices mainly rely on the mechanical weight to generate positive pressure on the slope, and because the slope angle is fixed, the actual pressure acting on the slope surface is only a component of the roller weight, which leads to the need to significantly increase the self-weight of the roller to achieve the compaction pressure required by the design.

[0005] The technical solution of the present invention is as follows: a slope compaction device, including a compaction device frame, a traveling assembly arranged below the compaction device frame, the traveling assembly including at least two wheels and at least one track, and also including; A tamping plate is installed below the compaction device frame. A connecting rod is installed on one side of the tamping plate. Multiple sets of connecting rods are installed. One end of the connecting rod is equipped with a caster. A fixing groove is opened on the inner side of the compaction device frame. The caster is located inside the fixing groove. A strong magnet is installed on the surface of the tamping plate. A mounting box is installed directly above the compaction device frame. An energized solenoid is installed inside the mounting box. The energized solenoid is located directly above the strong magnet and there is a vertical gap between the two. A connecting bolt is used to connect the strong magnet and the tamping plate to fix the strong magnet and the tamping plate. A traction hanging ring is installed on one side of the compaction device frame. The energized solenoid generates an alternating magnetic field after being energized with alternating current. This alternating magnetic field exerts a periodically changing magnetic force on the strong magnet. The direction of the magnetic force is perpendicular to the slope surface, which drives the tamping plate to impact and compact the slope subbase material. The walking component is driven by a DC motor and is used to move the slope compaction device on the slope.

[0006] Preferably, the magnitude of the alternating current is adjustable. By adjusting the magnitude of the alternating current, the magnetic field strength generated by the energized solenoid is changed, thereby changing the magnitude of the magnetic force on the strong magnet, which is used for stepless adjustment of the compaction pressure on the slope.

[0007] Preferably, the walking assembly includes two tracks, which are respectively set on the left and right sides of the compaction device frame. Each track is driven by an independent DC motor, and the direction of the power supply current of the DC motor can be switched. When the DC motor is supplied with DC power in the first direction, the track drives the slope compaction device to move to the top of the slope. When the DC motor is supplied with DC power in the second direction, the track drives the slope compaction device to move to the bottom of the slope.

[0008] Preferably, a slope compaction device further includes a winch and a traction rope. The winch is fixed at the top of the slope, and one end of the traction rope is connected to the drum of the winch, while the other end is detachably connected to a traction ring. When the slope compaction device moves towards the top of the slope, the winch winds up the traction rope to provide auxiliary traction. When the slope compaction device moves towards the bottom of the slope, the winch releases the traction rope to limit the downhill speed of the slope compaction device and prevent it from tipping over.

[0009] Preferably, the fixed channel is a vertically opened guide channel, and one end of the connecting rod is fixedly connected to the ramming plate.

[0010] Preferably, the strong magnet is a permanent magnet or an electromagnet, and the magnetic pole direction of the energized solenoid is set to be the same as or opposite to the magnetic pole direction of the strong magnet; when the magnetic pole directions are the same, the energized solenoid generates a repulsive force perpendicular to the slope downwards on the strong magnet; when the magnetic pole directions are opposite, the energized solenoid generates an attractive force perpendicular to the slope upwards on the strong magnet.

[0011] Preferably, a slope compaction device further includes a control system, the control system comprising: An AC power module is used to provide an adjustable current to a energized solenoid. A DC power supply module is used to provide switchable DC power to the DC motor of the walking structure; The controller is electrically connected to both the AC power module and the DC power module. The controller adjusts the AC current output of the AC power module according to the preset compaction pressure parameters, and switches the direction of the DC current output of the DC power module according to the movement direction command of the slope compaction device.

[0012] Preferably, the control system also includes a pressure sensor installed between the tamping plate and the strong magnet to detect the actual rolling pressure of the tamping plate on the slope surface in real time and transmit the detected pressure signal to the controller. The controller compares the pressure signal with the target pressure value and adjusts the magnitude of the AC current output by the AC power module in a closed loop according to the comparison result so that the actual rolling pressure approaches the target pressure value.

[0013] Preferably, a slope compaction device includes the following steps during operation: S11: Place the slope compaction device at the bottom of the slope to be compacted, and connect the winch at the top of the slope to the traction ring through the traction rope. S12: Start the winch to put it in the winding and traction state, and at the same time, supply DC power in the first direction to the DC motor of the traveling mechanism to drive the slope compaction device to move towards the top of the slope. S13: During the process of the slope compaction device moving towards the top of the slope, an alternating current is supplied to the energized solenoid to generate an alternating magnetic field, which applies a periodic magnetic force perpendicular to the slope surface to the strong magnet, causing the tamping plate to impact and compact the slope cushion material. S14: Adjust the current of the AC power supply according to the compaction design requirements to change the magnetic force and thus adjust the compaction pressure; S15: When the slope compaction device reaches the top of the slope, switch the current direction of the DC motor of the walking structure to the second direction, so that the slope compaction device moves to the bottom of the slope. At the same time, control the winch to slowly release the traction rope to limit the downhill speed of the slope compaction device. S16: Repeat S12-S15 until all the set number of rolling passes are completed.

[0014] Preferably, in S13 and S14, a pressure sensor installed between the tamping plate and the strong magnet detects the actual compaction pressure in real time and feeds the pressure signal back to the controller; the controller compares the measured pressure with the target pressure, and increases the AC current when the measured pressure is lower than the target pressure, and decreases the AC current when the measured pressure is higher than the target pressure.

[0015] The beneficial effects of this invention are: Existing slope compaction devices primarily rely on the machine's own weight to generate normal pressure on the slope. Since the slope angle is fixed, the actual pressure acting on the slope surface is only a component of the roller's weight. This necessitates a significant increase in the roller's own weight to achieve the designed compaction pressure. This weight-dependent approach presents several drawbacks: excessively heavy rollers significantly increase transportation difficulty and the load on traction equipment. Furthermore, the weight of the compaction equipment is fixed during the bidding stage, making it impossible to flexibly adjust the compaction pressure based on on-site compaction test results during construction. If the initially determined roller weight is too low, it can only be compensated for by increasing the number of compaction passes, thus extending the construction period and reducing efficiency. In addition, in narrow filling areas such as the transition material at the bottom of the dam foundation, traditional large compaction machines cannot operate due to insufficient passage width, often requiring additional filling material to accommodate the machinery, resulting in material waste or necessitating adjustments to compaction parameters and increased on-site testing workload, severely impacting construction. Regarding construction progress, this solution utilizes electromagnetic force as the direct source of compaction pressure. An alternating magnetic field between an energized solenoid and a strong magnet generates a magnetic force perpendicular to the slope, causing the tamping plate to impact and compact the subgrade material. This completely eliminates the influence of the slope angle on the normal pressure. The device can steplessly adjust the magnetic force intensity in real time by regulating the AC current, allowing for flexible adjustment of compaction pressure according to on-site compaction requirements during construction. This eliminates the need to change the machine's weight or increase the number of compaction passes, freeing compaction parameter optimization from the constraints of the machine weight determined during the bidding stage. It can quickly adapt to the compaction requirements of different fill materials, significantly improving construction efficiency and shortening the construction period. Furthermore, the walking mechanism, using a combination of wheels and tracks, can independently complete compaction operations in narrow-width fill areas where traditional large machinery cannot pass, avoiding waste of subgrade material or additional on-site testing work caused by difficulties in machine access, effectively reducing construction costs and resource consumption. Attached Figure Description

[0016] Figure 1 The diagram shown is a first three-dimensional structural schematic of a slope compaction device according to the present invention. Figure 2 The diagram shown is a second three-dimensional structural schematic of a slope compaction device according to the present invention. Figure 3 The diagram shown is a partial three-dimensional structural schematic of a slope compaction device according to the present invention. Figure 4 The diagram shown is a partial three-dimensional structural schematic of a slope compaction device according to the present invention. Figure 5 The diagram shown is a schematic representation of the operation process of a slope compaction device according to the present invention. Explanation of reference numerals in the attached drawings: 1. Compactor frame; 2. Wheel; 3. Track; 4. Rammer; 5. Strong magnet; 6. Connecting bolt; 7. Connecting rod; 8. Caster wheel; 9. Fixed channel; 10. Mounting box; 11. Powered solenoid; 12. Traction ring. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Example 1 Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 This invention provides an embodiment of a slope compaction device, comprising a compaction device frame 1, a traveling assembly below the compaction device frame 1, the traveling assembly including at least two wheels 2 and at least one track 3; a tamping plate 4 below the compaction device frame 1, multiple sets of connecting rods 7 on one side of the tamping plate 4, a universal wheel 8 at one end of each connecting rod 7, a fixing groove 9 on the inner side of the compaction device frame 1, the universal wheel 8 being located inside the fixing groove 9; a strong magnet 5 on the surface of the tamping plate 4, a mounting box 10 directly above the compaction device frame 1, an energized solenoid 11 inside the mounting box 10, the energized solenoid 11 being located directly above the strong magnet 5 with a vertical gap between them; the strong magnet 5 and the tamping plate 4 are fixedly connected by connecting bolts 6; a traction ring 12 is provided on one side of the compaction device frame 1; The solenoid 11 generates an alternating magnetic field after being energized with alternating current. The alternating magnetic field applies a periodically changing magnetic force to the strong magnet 5. The direction of the magnetic force is perpendicular to the slope surface, which drives the tamping plate 4 to impact and compact the slope cushion material. The walking component is driven by a DC motor and is used to move the slope compaction device on the slope. In this embodiment, the magnitude of the alternating current is adjustable. By adjusting the magnitude of the alternating current, the magnetic field strength generated by the energized solenoid 11 is changed, thereby changing the magnetic force on the strong magnet 5, achieving stepless adjustment of the slope compaction pressure. The walking assembly includes two tracks 3, which are respectively set on the left and right sides of the compaction device frame 1. Each track 3 is driven by an independent DC motor, and the direction of the DC motor's power supply current can be switched. When the DC motor is supplied with DC current in the first direction, the track 3 drives the slope compaction device to move towards the top of the slope; when the DC motor is supplied with DC current in the second direction, the track 3 drives the slope compaction device to move towards the bottom of the slope. During operation, the slope compaction device is placed at the bottom of the slope to be compacted. The winch at the top of the slope is connected to the traction ring 12 via a traction rope. The winch is started to put it in the winding traction state, and at the same time, the DC motor of the traveling mechanism is supplied with DC power in the first direction, driving the device to move towards the top of the slope. During the movement, AC power is supplied to the energized solenoid 11 to generate an alternating magnetic field, which applies a periodic magnetic force perpendicular to the slope surface to the strong magnet 5, causing the tamping plate 4 to impact and compact the slope subbase material. The magnitude of the AC current is adjusted according to the compaction design requirements to change the magnitude of the magnetic force, thereby adjusting the compaction pressure. When the device reaches the top of the slope, the current direction of the DC motor is switched to the second direction, causing the device to move towards the bottom of the slope. At the same time, the winch is controlled to slowly release the traction rope to limit the downhill speed. The above steps are repeated until all the set number of compaction passes are completed. With the above structure, this embodiment utilizes electromagnetic force to directly generate a positive pressure perpendicular to the slope surface, completely eliminating the influence of the slope angle on the decomposition of pressure; at the same time, the compaction pressure can be adjusted in real time during construction by adjusting the magnitude of the alternating current, without changing the weight of the machinery or increasing the number of compaction passes, which significantly improves construction efficiency and adaptability.

[0019] Example 2 Based on Example 1, this embodiment further optimizes the cooperation relationship between the connecting rod 7 and the fixed channel 9, as well as the arrangement of the caster wheel 8; The fixed channel 9 is a guide channel vertically opened inside the compaction device frame 1. There are four channels in total, located near the four corners of the compaction device frame 1. There are four sets of connecting rods 7. One end of each set of connecting rods 7 is fixedly connected to the tamping plate 4, and the other end is fixed with a caster 8. The caster 8 slides in the corresponding fixed channel 9, so that the tamping plate 4 can move freely up and down in the vertical direction relative to the compaction device frame 1, while limiting the horizontal displacement of the tamping plate 4. When the magnetic force generated by the energized solenoid 11 is perpendicular to the slope and downwards, the strong magnet 5 drives the ramming plate 4 to impact the slope downwards; when the magnetic force is perpendicular to the slope and upwards, the ramming plate 4 is pulled upwards; the caster wheel 8 rolls in the fixed channel 9, reducing frictional resistance and ensuring that the high-frequency impact action of the ramming plate 4 is smooth and without jamming; the upper and lower ends of the fixed channel 9 are equipped with limit blocks to prevent the connecting rod 7 from coming off. In this embodiment, the combination of the vertically guided fixed channel 9 and the universal wheel 8 achieves stable lifting and guiding of the ramming plate 4, so that the magnetic force can be efficiently converted into impact kinetic energy, avoiding energy loss and mechanical wear caused by swaying, and improving the reliability and service life of the device under high-frequency rolling conditions.

[0020] Example 3 This embodiment provides a slope compaction device with a closed-loop control system, whose structure is based on Embodiment 2 with the addition of a control system component; The control system includes: an AC power module for providing an adjustable AC current to the energized solenoid 11; a DC power module for providing a switchable DC current to the DC motor of the traveling mechanism; and a controller, which is electrically connected to both the AC power module and the DC power module. The controller adjusts the AC current output by the AC power module according to preset compaction pressure parameters and switches the direction of the DC current output by the DC power module according to the movement direction command of the slope compaction device. Furthermore, the control system also includes a pressure sensor installed between the tamping plate 4 and the strong magnet 5. The pressure sensor is used to detect the actual rolling pressure of the tamping plate 4 on the slope surface in real time and transmit the detected pressure signal to the controller. The controller compares the pressure signal with the target pressure value. When the measured pressure is lower than the target pressure, the current of the AC power is increased. When the measured pressure is higher than the target pressure, the current of the AC power is decreased, thereby adjusting the actual rolling pressure in a closed loop so that it always approaches the target pressure value. This embodiment uses a closed-loop control system consisting of a controller and a pressure sensor to achieve automatic and precise adjustment of the compaction pressure, avoiding the blindness of manually adjusting the current based on experience. When the slope is at different locations or the density of the subbase material is uneven, the system can respond in real time and maintain a constant effective compaction pressure, ensuring the uniformity of the compaction degree of the entire slope and further improving the construction quality and automation level.

[0021] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A slope compaction device; characterized in that: It includes a compaction device frame (1), and a traveling assembly is provided below the compaction device frame (1). The traveling assembly includes at least two wheels (2) and at least one track (3), and also includes; A rammer plate (4) is provided below the frame (1) of the compaction device. A connecting rod (7) is provided on one side of the rammer plate (4). Multiple sets of connecting rods (7) are provided. A caster wheel (8) is provided at one end of the connecting rod (7). A fixed groove (9) is provided on the inner side of the frame (1) of the compaction device. The caster wheel (8) is located inside the fixed groove (9). A strong magnet (5) is provided on the surface of the rammer plate (4). An installation box (10) is provided directly above the frame (1) of the compaction device. An energized solenoid (11) is provided inside the installation box (10). The energized solenoid (11) is located directly above the strong magnet (5) and there is a vertical gap between them. A connecting bolt (6) is connected between the strong magnet (5) and the rammer plate (4) for fixing the strong magnet (5) and the rammer plate (4). A traction hanging ring (12) is provided on one side of the frame (1) of the compaction device. The solenoid (11) generates an alternating magnetic field after being energized with alternating current. The alternating magnetic field applies a periodically changing magnetic force to the strong magnet (5). The direction of the magnetic force is perpendicular to the slope surface, which drives the tamping plate (4) to impact and compact the slope cushion material. The walking component is driven by a DC motor and is used to move the slope compaction device on the slope.

2. The slope compaction device according to claim 1, characterized in that: The magnitude of the alternating current is adjustable. By adjusting the magnitude of the alternating current, the magnetic field strength generated by the energized solenoid (11) is changed, thereby changing the magnitude of the magnetic force on the strong magnet (5), which is used for stepless adjustment of the compaction pressure of the slope.

3. The slope compaction device according to claim 1, characterized in that: The walking assembly includes two tracks (3), which are respectively set on the left and right sides of the rolling device frame (1). Each track (3) is driven by an independent DC motor, and the direction of the power supply current of the DC motor can be switched. When the DC motor is supplied with DC power in the first direction, the track (3) drives the slope rolling device to move to the top of the slope. When the DC motor is supplied with DC power in the second direction, the track (3) drives the slope rolling device to move to the bottom of the slope.

4. The slope compaction device according to claim 1, characterized in that: A slope compaction device further includes a winch and a traction rope. The winch is fixed at the top of the slope, and one end of the traction rope is connected to the drum of the winch, while the other end is detachably connected to the traction ring (12). When the slope compaction device moves towards the top of the slope, the winch winds up the traction rope to provide auxiliary traction force. When the slope compaction device moves towards the bottom of the slope, the winch releases the traction rope to limit the downhill speed of the slope compaction device and prevent it from overturning.

5. A slope compaction device according to claim 1, characterized in that: The fixed channel (9) is a vertically opened guide channel, and one end of the connecting rod (7) is fixedly connected to the ramming plate (4).

6. A slope compaction device according to claim 1, characterized in that: The strong magnet (5) is a permanent magnet or an electromagnet. The magnetic pole direction of the energized solenoid (11) is set to be the same as or opposite to the magnetic pole direction of the strong magnet (5). When the magnetic pole direction is the same, the energized solenoid (11) generates a repulsive force perpendicular to the slope downwards on the strong magnet (5). When the magnetic pole direction is opposite, the energized solenoid (11) generates an attractive force perpendicular to the slope upwards on the strong magnet (5).

7. A slope compaction device according to claim 1, characterized in that: A slope compaction device further includes a control system, the control system comprising: An AC power module is used to provide an adjustable current to the energized solenoid (11); A DC power supply module is used to provide switchable DC power to the DC motor of the walking structure; The controller is electrically connected to both the AC power module and the DC power module. The controller adjusts the AC current output of the AC power module according to the preset compaction pressure parameters, and switches the direction of the DC current output of the DC power module according to the movement direction command of the slope compaction device.

8. A slope compaction device according to claim 7, characterized in that: The control system also includes a pressure sensor, which is installed between the tamping plate (4) and the strong magnet (5) to detect the actual rolling pressure of the tamping plate (4) on the slope surface in real time and transmit the detected pressure signal to the controller. The controller compares the pressure signal with the target pressure value and adjusts the magnitude of the AC current output by the AC power module in a closed loop according to the comparison result so that the actual rolling pressure approaches the target pressure value.

9. A slope compaction device according to claim 1, characterized in that: The work includes the following steps: S11: Place the slope compaction device at the bottom of the slope to be compacted, and connect the winch at the top of the slope to the traction ring (12) by means of the traction rope; S12: Start the winch to put it in the winding and traction state, and at the same time, supply DC power in the first direction to the DC motor of the traveling mechanism to drive the slope compaction device to move towards the top of the slope. S13: During the process of the slope compaction device moving towards the top of the slope, the energized solenoid (11) is supplied with alternating current to generate an alternating magnetic field, which applies a periodic magnetic force perpendicular to the slope surface to the strong magnet (5), causing the ramming plate (4) to impact and compact the slope cushion material. S14: Adjust the current of the AC power supply according to the compaction design requirements to change the magnetic force and thus adjust the compaction pressure; S15: When the slope compaction device reaches the top of the slope, switch the current direction of the DC motor of the walking structure to the second direction, so that the slope compaction device moves to the bottom of the slope. At the same time, control the winch to slowly release the traction rope to limit the downhill speed of the slope compaction device. S16: Repeat S12-S15 until all the set number of rolling passes are completed.

10. A slope compaction device according to claim 9, characterized in that: In S13 and S14, the actual compaction pressure is detected in real time by a pressure sensor installed between the tamping plate (4) and the strong magnet (5), and the pressure signal is fed back to the controller. The controller compares the measured pressure with the target pressure. When the measured pressure is lower than the target pressure, the current of the alternating current is increased, and when the measured pressure is higher than the target pressure, the current of the alternating current is decreased.

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