Dynamic compactor capable of automatically hooking and unhooking
By designing automatic hooking dehooking ramming device and multi-stage robotic arms on the ramming machine, the problem of inefficiency of the existing ramming machine in soft soil foundation construction is solved, and efficient continuous and dense compaction of the soft soil foundation is achieved, improving the efficiency, continuous and dense compaction of the soft soil foundation. Construction efficiency and equipment mobility stability.
Patent Information
- Application Number
- CN202411387848.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-07
- Publication Date
- 2024-12-17
AI Technical Summary
The existing tamper machines are difficult to flexibly displace and continuously intensively tamp during construction, and cannot meet the construction needs of foundations in larger areas, especially in the comprehensive tamping of soft soil foundations.
A self-hooking and dehooking tamper is designed, using a construction vehicle with a tool platform at the rear, and is equipped with a multi-stage robotic arm with controllable deformation and an automatic dehooking tampering device, including an annular track and elastic dehooking components. and drive assembly, flexible displacement and continuous dense tamping are achieved through multi-stage robotic arms and stable top support devices.
The comprehensive consolidation of soft soil foundations has been achieved, construction efficiency has been improved, flexibly displaced and steadily moved in a narrow space, ensuring the consolidation effect.
Smart Images
Figure CN119145386A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of engineering machinery, and in particular relates to a dynamic compaction machine with automatic hooking and unhooking. Background Art
[0002] Dynamic compaction machine is a machine used to compact loose soil in construction and other projects. Dynamic compaction machine uses the impact energy generated by the high drop of the rammer to squeeze materials with good performance such as crushed stone, slab stone, slag, etc. into the foundation, forming granular piles in the foundation. The soil between the piles forms a composite foundation to improve the bearing capacity of the foundation and reduce settlement. Granular piles generally have good water permeability, which is conducive to the dissipation of excess pore water pressure in the soil and consolidation. Therefore, dynamic compaction machine is widely used in various construction projects involving soft soil foundations.
[0003] Existing dynamic compaction machines are usually composed of a gantry, a rammer, and a suspension system. The rammer is lifted and released during operation, and the foundation is compacted by the rammer. This type of dynamic compaction machine usually continues to compact at a single point for a long time and does not move frequently. For construction scenarios where a large area of foundation requires continuous and intensive compaction, the dynamic compaction machine of the aforementioned structural form cannot meet the use requirements. This type of engineering scenario requires a dynamic compaction machine that can be flexibly shifted and can perform continuous and intensive compaction to perform comprehensive compaction operations on the soft soil foundation and compact the soft soil foundation efficiently. Summary of the invention
[0004] In order to solve the technical problems existing in the known technology, the present invention provides a tamping machine with automatic hooking and unhooking, which can be flexibly moved and can perform continuous and intensive tamping, perform comprehensive tamping operations on soft soil foundations, efficiently compact the soft soil foundations, and improve construction efficiency.
[0005] The technical solution adopted by the present invention to solve the technical problems existing in the known technology is: an automatic hooking and unhooking tamping machine, including a construction vehicle with a machine tool platform at the rear, a field controller is installed on the side of the machine tool platform; side supports are installed on both sides of the machine tool platform, a multi-stage mechanical arm with controllable deformation is installed on the side supports, a stable top support device combined with the construction ground is installed at the lower end of the last stage of the multi-stage mechanical arm, a base plate is installed at the front of the last stage of the multi-stage mechanical arm, and an automatic hooking and unhooking type tamping device is installed on the base plate; the automatic hooking and unhooking type tamping device includes a ring shaped track, at least one elastic hook-and-unhook assembly is installed on the circular track, and also includes a driving assembly for driving the elastic hook-and-unhook assembly to move cyclically along the circular track, a guide sleeve is installed on the side top of the circular track, a lifting rod with a limit baffle at the top and a rammer at the bottom is installed in the guide sleeve, a hook is provided in the middle of the lifting rod, and a unhooking wedge acting on the elastic hook-and-unhook assembly is provided on the inner side of the upper part of the circular track, the elastic hook-and-unhook assembly is combined with the hook when moving upward from the bottom and is separated and unhooked from the hook under the action of the unhooking wedge when reaching the top.
[0006] Preferably, the elastic hook and unhooking assembly includes a base combined with a driving assembly, two sets of inner and outer track wheels are installed on the back of the base and the annular track is located between the two sets of track wheels, a guide block with a transverse guide hole is installed on the front of the base and a mounting rod is provided in the guide hole, a mounting block acting on the hook is provided at the outer end of the mounting rod, a roller acting on the unhooking wedge is installed at the inner end, and a spring is provided between the mounting block and the guide block.
[0007] Preferably, the driving assembly includes an active chain plate installed on the upper part of the base plate, a driven chain plate installed on the lower part of the base plate, a chain is installed between the active chain plate and the driven chain plate, a hydraulic motor for driving the active chain plate is installed on the upper back of the base plate, and a connecting seat is provided on the inner side of the base, which is fixedly connected to the chain.
[0008] Preferably, the automatic hooking and unhooking type tamping devices on the base plate are provided with two left and right groups, and the two groups of automatic hooking and unhooking type tamping devices are arranged in mirror symmetry.
[0009] Preferably, the stabilizing support device includes a rotating cylinder installed at the final end of the multi-stage robotic arm, a push-pull cylinder is installed on the rotating piston of the rotating cylinder, two stabilizing forks with a four-bar mechanism are also installed on the rotating piston of the rotating cylinder, and the piston rod end of the push-pull cylinder is connected to the middle part of the four-bar mechanism through a pull rod.
[0010] Preferably, the multi-stage robotic arm includes a primary swing arm, a secondary swing arm, a tertiary swing arm and a quaternary swing arm, the root of the primary swing arm is fixedly connected to the side support, the quaternary swing arm serves as the last stage of the multi-stage robotic arm and the middle back portion of the substrate is fixedly connected to the front portion of the quaternary swing arm, the rear end of the secondary swing arm is hingedly connected to the outer end of the primary swing arm through a vertical first hinge axis, the rear end of the tertiary swing arm is hingedly connected to the front end of the secondary swing arm by a horizontal second hinge axis, the upper end of the quaternary swing arm is hingedly connected to the front end of the tertiary swing arm by a horizontal third hinge axis, and the second hinge axis is parallel to the third hinge axis.
[0011] Preferably, a first swing arm cylinder is provided in the first-stage swing arm, the rear end of the cylinder body of the first swing arm cylinder is hingedly connected to the support seat in the first-stage swing arm, and the front end of the piston rod is hingedly connected to the support seat in the second-stage swing arm; a second swing arm cylinder is provided in the second-stage swing arm, the rear end of the cylinder body of the second swing arm cylinder is hingedly connected to the support seat in the second-stage swing arm, and the front end of the piston rod is hingedly connected to the support seat in the third-stage swing arm; a third swing arm cylinder is provided in the third-stage swing arm, the rear end of the cylinder body of the third swing arm cylinder is hingedly connected to the support seat in the third-stage swing arm, and the front end of the piston rod is hingedly connected to the support seat in the fourth-stage swing arm.
[0012] The advantages and positive effects of the present invention are:
[0013] The present invention provides a dynamic compaction machine with automatic hooking and unhooking. A multi-stage mechanical arm, a base plate and an automatic hooking and unhooking type tamping device are installed on a construction vehicle, so that the dynamic compaction machine can be flexibly displaced. The automatic hooking and unhooking type tamping device is composed of a circular track, an elastic hooking and unhooking component, a driving component, a lifting rod with a tamping hammer and a hook, etc. The driving component drives the elastic hooking and unhooking component to shift on the circular track. When the elastic hooking and unhooking component rises, it combines with the hook to lift the lifting rod and its tamping hammer. When it rises to a high position, it is unhooked by the action of the unhooking wedge block. The lifting rod and its tamping hammer fall and produce a tamping effect on the ground. Therefore, the dynamic compaction machine has the function of automatic hooking and unhooking, can apply continuous and intensive tamping effects to the soft soil foundation, perform comprehensive tamping operations on the soft soil foundation, efficiently tamping the soft soil foundation, and improve construction efficiency.
[0014] By setting a multi-stage mechanical arm with controllable deformation, the substrate and its automatic hook-and-unhook tamping device can be controlled to shift in a controlled manner, and in the non-tamping working state, the substrate and its automatic hook-and-unhook tamping device can be folded to a tilted posture through the multi-stage mechanical arm, which appropriately lowers the overall height of the equipment and the center of gravity, and to a certain extent can improve the passability and movement stability of the tamping machine equipment in narrow spaces. By installing a stable top support device combined with a soft soil foundation at the lower end of the last stage of the multi-stage mechanical arm, the substrate and its automatic hook-and-unhook tamping device can be stabilized in a vertical state when in the tamping working state, avoiding shaking during operation and ensuring the compaction effect on the soft soil foundation. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a main structural schematic diagram of the present invention;
[0016] Figure 2 yes Figure 1 Schematic diagram of the structure of the multi-stage robot arm, from the upper perspective;
[0017] Figure 3 yes Figure 1 Schematic diagram of the structure of the medium multi-stage robotic arm, bottom view;
[0018] Figure 4 yes Figure 1 A schematic diagram of the main structure of the middle base plate and its auxiliary devices;
[0019] Figure 5 yes Figure 4 Schematic diagram of the main perspective structure of the middle elastic hook and unhooking assembly.
[0020] In the figure:
[0021] 1. Construction vehicle; 2. Machine platform; 3. Side support; 4. On-site controller; 5. First-stage swing arm; 6. Second-stage swing arm; 7. Third-stage swing arm; 8. Fourth-stage swing arm; 9. Rotating cylinder; 10. Push-pull cylinder; 11. Four-bar linkage; 12. Stabilizing fork; 13. Base plate; 14. Limit baffle; 15. Guide sleeve; 16. Lifting rod; 17. Circular track; 18. Elastic hook assembly; 18-1. Base; 18-2. Roller; 18-3 , guide block; 18-4, mounting rod; 18-5, connecting seat; 18-6, track wheel; 18-7, spring; 18-8, mounting block; 19, hydraulic motor; 20, rammer; 21, first articulated shaft; 22, second articulated shaft; 23, third articulated shaft; 24, first swing arm cylinder; 25, second swing arm cylinder; 26, third swing arm cylinder; 27, unhooking wedge; 28, chain; 29, active chain plate; 30, driven chain plate; 31, hook. DETAILED DESCRIPTION
[0022] In order to further understand the content, features and effects of the present invention, the following embodiments are given to explain in detail.
[0023] See also Figure 1 The automatic hook-and-unhook compaction machine of the present invention comprises a construction vehicle 1 with a tool platform 2 at the rear, and a field controller 4 is installed on the side of the tool platform 2. As shown in the figure, the construction vehicle 1 is selected as a wheeled or tracked vehicle to give full play to its ability of flexible displacement. Considering that the bearing capacity of the soft soil foundation is usually insufficient, a tracked vehicle is preferably selected. The construction vehicle 1 is equipped with a cab, and the driver drives the construction vehicle 1 to move on the soft soil foundation. The field controller 4 is operated by another field control personnel to perform the control related to the soft soil foundation compaction operation.
[0024] Side supports 3 are installed on both sides of the tool platform 2, and a multi-stage mechanical arm with controllable deformation is installed on the side supports 3. A stable top support device combined with the construction ground, that is, a soft soil foundation, is installed at the lower end of the last stage of the multi-stage mechanical arm. A base plate 13 is installed at the front part of the last stage of the multi-stage mechanical arm, and an automatic hook-and-unhook type tamping device is installed on the base plate 13.
[0025] The operating principle is: the multi-stage mechanical arm is controlled to deform by the field controller 4, and the posture and position of the substrate 13 and its automatic hook-and-unhook type ramming device are adjusted by adjusting the posture change of the multi-stage mechanical arm. Figure 1 As shown in the figure is the non-ramming working state, at this time, the base plate 13 and its automatic hook-and-unhook type ramming device can be in a tilted state, which can appropriately reduce the overall height of the ramming machine equipment, lower the center of gravity, and improve the passability and movement stability; when entering the ramming construction state, the base plate 13 and its automatic hook-and-unhook type ramming device are in a vertical state by adjusting the posture change of the multi-stage mechanical arm. At this time, the stable support device is embedded in the soft soil foundation below, which can promote the base plate 13 and its automatic hook-and-unhook type ramming device to maintain the aforementioned vertical state during the ramming construction process. After completing the ramming construction at one position, the base plate 13 and its automatic hook-and-unhook type ramming device are moved to the next adjacent position to continue construction. After completing the construction in this area, the construction vehicle 1 moves its position.
[0026] See also Figure 2 and Figure 3 , we can see that:
[0027] The multi-stage mechanical arm comprises a primary swing arm 5, a secondary swing arm 6, a tertiary swing arm 7 and a quaternary swing arm 8. The root of the primary swing arm 5 is fixedly connected to the side support 3. The quaternary swing arm 8 serves as the final stage of the multi-stage mechanical arm and the middle of the back of the base plate 13 is fixedly connected to the front of the quaternary swing arm 8. The rear end of the secondary swing arm 6 is hingedly connected to the outer end of the primary swing arm 5 through a vertical first hinge shaft 21, the rear end of the tertiary swing arm 7 is hingedly connected to the front end of the secondary swing arm 6 through a horizontal second hinge shaft 22, the upper end of the quaternary swing arm 8 is hingedly connected to the front end of the tertiary swing arm 7 through a horizontal third hinge shaft 23, the second hinge shaft 22 is parallel to the third hinge shaft 23, and the second hinge shaft 22 and the third hinge shaft 23 are both perpendicular to the first hinge shaft 21.
[0028] A first swing arm oil cylinder 24 is provided in the primary swing arm 5, the rear end of the cylinder body of the first swing arm oil cylinder 24 is hingedly connected to the support seat in the primary swing arm 5, and the front end of the piston rod is hingedly connected to the support seat in the secondary swing arm 6. A second swing arm oil cylinder 25 is provided in the secondary swing arm 6, the rear end of the cylinder body of the second swing arm oil cylinder 25 is hingedly connected to the support seat in the secondary swing arm 6, and the front end of the piston rod is hingedly connected to the support seat in the tertiary swing arm 7. A third swing arm oil cylinder 26 is provided in the tertiary swing arm 7, the rear end of the cylinder body of the third swing arm oil cylinder 26 is hingedly connected to the support seat in the tertiary swing arm 7, and the front end of the piston rod is hingedly connected to the support seat in the quaternary swing arm 8.
[0029] By controlling the telescopic action of each swing arm cylinder through the field controller 4, the action of each joint of the multi-stage robotic arm can be controlled individually: among them, the four-stage swing arm 8, the base plate 13 and its automatic hook-and-unhook ramming device can swing forward or backward with the third hinge shaft 23 as the center, the three-stage swing arm 7 and its accessories can swing upward or downward with the second hinge shaft 22 as the center, and the two-stage swing arm 6 and its accessories can swing inward or outward with the first hinge shaft 21 as the center.
[0030] By operating the third-stage swing arm 7 and the fourth-stage swing arm 8, the substrate 13 and its automatic hooking and unhooking type ramming device can be converted between a tilted state and a vertical state. By operating the second-stage swing arm 6, the substrate 13 and its automatic hooking and unhooking type ramming device can be swung and moved in a fan-shaped area.
[0031] In this embodiment, the stabilizing support device includes a rotating cylinder 9 installed at the final end of the multi-stage robotic arm. As shown in the figure, the rotating cylinder 9 is fixed at the end of the four-stage swing arm 8, and a push-pull cylinder 10 is installed on the rotating piston of the rotating cylinder 9. Two stabilizing forks 12 with a four-bar mechanism 11 are also installed on the rotating piston of the rotating cylinder 9. The piston rod end of the push-pull cylinder 10 is connected to the middle part of the four-bar mechanism 11 through a pull rod.
[0032] See also Figure 2 , Figure 3 and Figure 4 , we can see that:
[0033] The stabilizing fork 12 includes a V-shaped base, the rear of the base is fixedly connected to the front of the rotating piston of the rotating oil cylinder 9, and triangular forks are installed on both sides of the front of the base using a four-bar linkage 11, and the two forks can move closer or farther away. The rear end of the cylinder body of the push-pull oil cylinder 10 is fixedly connected to the front of the rotating piston of the rotating oil cylinder 9, the inner end of the pull rod is hingedly connected to the front end of the piston rod of the push-pull oil cylinder 10, and the outer end of the pull rod is hingedly connected to the middle of the four-bar linkage 11. In this way, the push-pull oil cylinder 10, the four-bar linkage 11 and the stabilizing fork 12 can be controlled to rotate at a certain angle by the rotating oil cylinder 9, and the front of the four-bar linkage 11 and the stabilizing fork 12 can be expanded or retracted by controlling the piston rod of the push-pull oil cylinder 10 to move closer or farther.
[0034] As mentioned above, the function of the stabilizing support device is to keep the base plate 13 and its automatic hook-and-release tamping device in a vertical state by combining with the soft soil foundation below during tamping work, thereby improving the stability of the tamping operation. Figure 4 As shown in the figure, during the tamping operation, the lower part of the stabilizing fork 12 should be in an expanded state and embedded in the soft soil foundation to achieve the technical effect of stabilizing the top support. By expanding the lower part of the stabilizing fork 12, the stability of the top support can be significantly improved. The role of using the rotating cylinder 9 to drive the push-pull cylinder 10, the four-bar linkage 11 and the stabilizing fork 12 to rotate is: if the current position cannot be smoothly inserted (for example, there are stones in the soft soil foundation below), the rotating cylinder 9 is controlled to rotate a certain angle to avoid the position where it cannot be inserted, and finally it should be achieved. Figure 4 The stabilizing top support effect shown in .
[0035] See also Figure 4 , we can see that:
[0036] There are two left and right groups of automatic hook-and-unhook tamping devices on the base plate 13, and the two groups of automatic hook-and-unhook tamping devices are arranged in mirror symmetry. The two groups of automatic hook-and-unhook tamping devices operate independently, and the double-station design can improve the efficiency of tamping construction.
[0037] The automatic hook-and-release type ramming device comprises an annular track 17, which comprises a semicircular portion at the upper end, a semicircular portion at the lower end, and a straight portion in the middle. At least one elastic hook-and-release assembly 18 is installed on the annular track 17, and also comprises a driving assembly for driving the elastic hook-and-release assembly 18 to move cyclically along the annular track 17. A guide sleeve 15 is installed on the top of the side of the annular track 17, and a lifting rod 16 with a limit baffle 14 at the top and a rammer 20 at the bottom is installed in the guide sleeve 15, a hook 31 is provided in the middle of the lifting rod 16, and a hook-and-release wedge 27 acting on the elastic hook-and-release assembly 18 is provided on the inner side of the upper part of the annular track 17.
[0038] When the elastic hanging and unhooking component 18 moves upward from the bottom, it is combined with the hook 31 and when it reaches the top, it is separated and unhooked from the hook 31 under the action of the unhooking wedge block 27. Therefore, this tamping machine has the function of automatic hanging and unhooking. Under the driving action of the driving component, the elastic hanging and unhooking component 18 moves continuously and cyclically on the circular track 17. When the elastic hanging and unhooking component 18 moves to the bottom of the hook 31 and continues to move upward, the lifting rod 16 and its rammer 20 are lifted upward. After reaching the high position, the unhooking wedge block 27 acts on the elastic hanging and unhooking component 18 to unhook the elastic hanging and unhooking component 18 from the hook 31. Then, under the action of gravity, the lifting rod 16 and its rammer 20 fall down, producing a tamping effect on the soft soil foundation. After passing through the unhooking wedge block 27, the elastic hanging and unhooking component 18 automatically resets elastically.
[0039] See also Figure 5 , we can see that:
[0040] The elastic hook and unhooking assembly 18 includes a base 18-1 combined with a driving assembly, and two sets of inner and outer track wheels 18-2 are installed on the back of the base 18-1, and the annular track 17 is located between the two sets of track wheels 18-2. Since the elastic hook and unhooking assembly 18 relies on the two sets of inner and outer track wheels 18-2 to be combined with the annular track 17, the elastic hook and unhooking assembly 18 as a whole can adapt to the shape changes of the annular track 17 and can move smoothly in its straight part and semicircular part.
[0041] A guide block 18-3 with a transverse guide hole is installed on the front of the base 18-1, and a mounting rod 18-4 is provided in the guide hole. A mounting block 18-8 acting on the hook 31 is provided at the outer end of the mounting rod 18-4, and a roller 18-6 acting on the unhooking wedge 27 is installed at the inner end. A spring 18-7 is provided between the mounting block 18-8 and the guide block 18-3. Under the action of the spring 18-7, the mounting rod 18-4 and its mounting block 18-8 move fully outward, so that the mounting block 18-8 is located below the hook 31 on the lifting rod 16. When it rises to the high position, the roller 18-6 at the inner end contacts the inclined surface on the inner side of the unhooking wedge 27. As the roller 18-6 moves further upward, the mounting rod 18-4 and its mounting block 18-8 gradually move inward and the spring 18-7 gradually compresses. Finally, the mounting block 18-8 separates from the hook 31 to achieve unhooking. After that, under the action of the spring 18-7, the mounting rod 18-4 and its mounting block 18-8 move outward and reset.
[0042] In this embodiment, the driving assembly includes an active chain plate 29 installed on the upper part of the base plate 13 (an upper shaft seat is provided on the base plate 13), and a driven chain plate 30 installed on the lower part of the base plate 13 (a lower shaft seat is provided on the base plate 13), a chain 28 is installed between the active chain plate 29 and the driven chain plate 30, and a hydraulic motor 19 for driving the active chain plate 29 is installed on the upper back of the base plate 13, wherein the active chain plate 29 is co-centering with the semicircular part of the upper part of the annular track 17, and the driven chain plate 30 is co-centering with the semicircular part of the lower part of the annular track 17.
[0043] A connecting seat 18-5 is provided on the inner side of the base 18-1 of the elastic hook and unhooking assembly 18, and the connecting seat 18-5 is fixedly connected to the chain 28. The hydraulic motor 19 drives the active chain plate 29 to rotate stably, and the chain 28 drives the elastic hook and unhooking assembly 18 to make a circular shift along the circular track 17, so that the lifting rod 16 and its rammer 20 perform periodic lifting and falling actions, that is, automatic hook and unhooking actions, to achieve continuous and intensive tamping actions.
[0044] How to run:
[0045] The construction vehicle 1 is moved to the soft soil foundation, and the on-site operator operates the multi-stage mechanical arm to change its posture through the hydraulic operating lever of the on-site controller 4. Figure 1 The initial state before tamping is shown in FIG. 1 . After the operation setting, the multi-stage mechanical arm, the substrate 13 and the two sets of automatic hook-and-unhook type tamping devices should be in Figure 4In the posture shown in , the four-stage swing arm 8 and the base plate 13 are in a nearly vertical state at this time, and the bottom of the stable support device, that is, the two forks at the bottom of the stable fork 12, are expanded and inserted downward into the soft soil foundation to achieve the effect of stable support. If it is found that the current position cannot be smoothly inserted when the stable fork 12 is operated to insert into the soft soil foundation, the rotating cylinder 9 can be controlled to rotate the stable fork 12 to a certain angle;
[0046] Initially, the two substrates 13 and their respective automatic hook-and-unhook type tamping devices are arranged in a straight line behind the construction vehicle 1 by adjusting the left and right multi-stage mechanical arms. At this time, the four tamping hammers 20 are arranged in a straight line.
[0047] By starting the hydraulic motor 9 of each automatic hook-and-unhook type tamping device through the field controller 4, the driving assembly is operated, and the elastic hook-and-unhook assembly 18 moves cyclically along the circular track 17, lifting the lifting rod 16 and its tamping hammer 20 to a high position, and the tamping hammer 20 is automatically unhooked under the action of the unhooking wedge 27 and then falls under the action of gravity, and the tamping hammer 20 tamps the soft soil foundation to produce a tamping effect;
[0048] Since the four rammers 20 are arranged in a straight line, a strip behind the construction vehicle 1 is compacted for multiple times in a single tamping operation. After completing the compaction operation of the current strip, the on-site operator controls the multi-stage mechanical arm to change its posture through the on-site controller 4, and swings the third-stage swing arm 7 upward by a certain angle, so that the fork head of the stabilizing fork 12 of the stabilizing top support device is pulled out of the soft soil foundation, and then operates the second-stage swing arm 6 to swing outward by a certain angle, and then operates the third-stage swing arm 7 to swing downward by a certain angle to restore the base plate 13 and its automatic hook-and-unhook type tamping device to the original state. Figure 4 From the construction position and posture shown in FIG, it can be seen that at this time, the two rammers 20 on each side move to the top of the next strip, and then the hydraulic motor 9 is started again to perform compaction processing on the strip of the soft soil foundation; the above operations are repeated, and finally the base plate 13 and its automatic hook-and-unhook type rammer device are swung to the rear side of the construction vehicle 1. It can be seen that in the complete compaction operation procedure, the base plate 13 is initially perpendicular to the center line of the construction vehicle 1, and the base plate 13 is finally parallel to the center line of the construction vehicle 1;
[0049] After completing the compaction work in this area, the three-stage swing arm 7 is swung upward by a certain angle and the stabilizing fork 12 is separated from the ground through the on-site controller 4, the multi-stage mechanical arm is deformed, and the base plate 13 and its automatic hook-and-unhook type tamping device are reset to the rear of the construction vehicle 1; then the construction vehicle 1 can be moved forward, that is, the tamping machine is transferred to the next construction position, and then the on-site controller 4 is operated to make the three-stage swing arm 7 swing downward by a certain angle and the stabilizing fork 12 inserted into the ground to start the compaction work in the next area.
Claims
1. A dynamic compaction machine with automatic hooking and unhooking, comprising a construction vehicle (1) with a tool platform (2) at the rear, and a field controller (4) installed on the side of the tool platform (2); wherein: Side supports (3) are installed on both sides of the tool platform (2), a multi-stage mechanical arm with controllable deformation is installed on the side supports (3), a stable support device combined with the construction ground is installed at the lower end of the last stage of the multi-stage mechanical arm, a base plate (13) is installed at the front of the last stage of the multi-stage mechanical arm, and an automatic hook-and-release type tamping device is installed on the base plate (13); the automatic hook-and-release type tamping device includes an annular track (17), at least one elastic hook-and-release assembly (18) is installed on the annular track (17), and also includes a drive for driving the elastic hook-and-release assembly (18) to move cyclically along the annular track (17). A driving assembly is provided, wherein a guide sleeve (15) is installed at the top of the side of the circular track (17), a lifting rod (16) with a limit baffle (14) at the top and a rammer (20) at the bottom is installed in the guide sleeve (15), a hook (31) is provided in the middle of the lifting rod (16), and a decoupling wedge (27) acting on the elastic hook-and-decoupling assembly (18) is provided on the inner side of the upper part of the circular track (17), the elastic hook-and-decoupling assembly (18) is combined with the hook (31) when moving upward from the bottom, and is separated and decoupled from the hook (31) under the action of the decoupling wedge (27) when reaching the top.
2. The automatic hook-and-unhook dynamic tamping machine according to claim 1, characterized in that: The elastic hook-and-unhook assembly (18) comprises a base (18-1) combined with a driving assembly, two sets of inner and outer track wheels (18-2) are installed on the back of the base (18-1), and the annular track (17) is located between the two sets of track wheels (18-2), a guide block (18-3) with a transverse guide hole is installed on the front of the base (18-1), and a mounting rod (18-4) is arranged in the guide hole, a mounting block (18-8) acting on a hook (31) is arranged at the outer end of the mounting rod (18-4), and a roller (18-6) acting on a hook-and-unhook wedge (27) is installed at the inner end, and a spring (18-7) is arranged between the mounting block (18-8) and the guide block (18-3).
3. The automatic hook-and-unhook dynamic tamping machine according to claim 2, characterized in that: The driving assembly comprises a driving chain disc (29) installed on the upper part of a base plate (13), and a driven chain disc (30) installed on the lower part of the base plate (13); a chain (28) is installed between the driving chain disc (29) and the driven chain disc (30); a hydraulic motor (19) for driving the driving chain disc (29) is installed on the upper back of the base plate (13); a connecting seat (18-5) is provided on the inner side of the base (18-1); and the connecting seat (18-5) is fixedly connected to the chain (28).
4. The automatic hook-and-unhook dynamic tamping machine according to claim 3, characterized in that: The automatic hook-and-release type tamping device on the base plate (13) is provided with two groups on the left and right, and the two groups of automatic hook-and-release type tamping devices are arranged in a mirror-symmetrical manner.
5. The automatic hook-and-unhook dynamic tamping machine according to claim 4 is characterized in that: The supporting device comprises a rotating oil cylinder (9) installed at the end of the last stage of the multi-stage mechanical arm, a push-pull oil cylinder (10) is installed on the rotating piston of the rotating oil cylinder (9), two stabilizing forks (12) with a four-bar linkage (11) are also installed on the rotating piston of the rotating oil cylinder (9), and the piston rod end of the push-pull oil cylinder (10) is connected to the middle part of the four-bar linkage (11) through a pull rod.
6. The automatic hook-and-unhook dynamic tamping machine according to any one of claims 1 to 5, characterized in that: The multi-stage mechanical arm comprises a primary swing arm (5), a secondary swing arm (6), a tertiary swing arm (7) and a quaternary swing arm (8); the root of the primary swing arm (5) is fixedly connected to the side support (3); the quaternary swing arm (8) serves as the last stage of the multi-stage mechanical arm and the middle back portion of the base plate (13) is fixedly connected to the front portion of the quaternary swing arm (8); the rear end of the secondary swing arm (6) is hingedly connected to the outer end of the primary swing arm (5) through a vertical first hinge shaft (21); the rear end of the tertiary swing arm (7) is hingedly connected to the front end of the secondary swing arm (6) through a horizontal second hinge shaft (22); the upper end of the quaternary swing arm (8) is hingedly connected to the front end of the tertiary swing arm (7) through a horizontal third hinge shaft (23); the second hinge shaft (22) is parallel to the third hinge shaft (23).
7. The automatic hook-and-unhook dynamic tamping machine according to claim 6, characterized in that: A first swing arm oil cylinder (24) is provided in the first swing arm (5), the rear end of the cylinder body of the first swing arm oil cylinder (24) is hingedly connected to the support seat in the first swing arm (5), and the front end of the piston rod is hingedly connected to the support seat in the second swing arm (6); a second swing arm oil cylinder (25) is provided in the second swing arm (6), the rear end of the cylinder body of the second swing arm oil cylinder (25) is hingedly connected to the support seat in the second swing arm (6), and the front end of the piston rod is hingedly connected to the support seat in the third swing arm (7); a third swing arm oil cylinder (26) is provided in the third swing arm (7), the rear end of the cylinder body of the third swing arm oil cylinder (26) is hingedly connected to the support seat in the third swing arm (7), and the front end of the piston rod is hingedly connected to the support seat in the fourth swing arm (8).