Portal type dynamic compactor

Abstract

The utility model belongs to the technical field of dynamic compaction machines, and relates to a gantry type dynamic compaction machine which comprises a gantry, a control mechanism, two sets of traveling mechanisms, a plurality of sets of hoisting mechanisms and a plurality of rammers, the portal comprises a main beam and two sets of supporting trusses arranged at the two ends of the main beam in the length direction. The two walking mechanisms are arranged at the bottoms of the two supporting trusses correspondingly to drive the portal to walk. Each lifting mechanism comprises a moving table and a winding device, the moving table is connected to the main beam in a sliding mode and can reciprocate in the length direction of the main beam, the winding device is connected to the lower portion of the moving table, and a lifting hook is installed at the bottom end of the winding device; the plurality of rammers are movably connected with the plurality of lifting hooks of the plurality of sets of lifting mechanisms in a one-to-one correspondence manner; the control mechanism is connected with the walking mechanism, the moving table and the winding device so as to control walking of the portal frame and the tamping positions of the multiple rammers, and the multiple rammers conduct tamping operation synchronously or asynchronously. The multi-point synchronous or alternate tamping operation can be realized, and the construction efficiency of the dynamic compactor is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of dynamic compaction machines, specifically relating to a gantry-type dynamic compaction machine. Background Technology

[0002] When undertaking engineering construction, the foundation must be treated first. Land formed under complex backfill conditions requires high-energy dynamic compaction to improve the bearing capacity of the foundation and reduce foundation settlement. Currently, dynamic compaction machines are commonly used to achieve this. The machine repeatedly lifts and releases a heavy hammer, which then falls freely and compacts the soil layer to rapidly solidify the foundation. However, existing dynamic compaction machines are all single-point compaction devices, capable of compacting only one point at a time, resulting in low construction efficiency and failing to adequately meet the needs of dynamic compaction construction for large-area foundations. Utility Model Content

[0003] In view of the shortcomings of the related technologies, this utility model provides a gantry-type dynamic compaction machine, which aims to improve the construction efficiency of dynamic compaction machines.

[0004] This utility model provides a gantry-type dynamic compaction machine, comprising:

[0005] The gantry includes a main beam and two sets of supporting trusses; the main beam is horizontally arranged and includes two crossbeams arranged opposite each other and two end beams connecting the two ends of the two crossbeams; the two sets of supporting trusses are arranged opposite each other at both ends of the main beam along its length to support the main beam.

[0006] Two sets of traveling mechanisms are respectively set at the bottom of the two sets of supporting trusses to drive the gantry to travel;

[0007] Multiple lifting mechanisms are provided. Each lifting mechanism includes a moving platform and a winch device. The moving platform is slidably connected to the main beam and can move back and forth along the length of the main beam. The winch device is connected below the moving platform and located between two crossbeams. A hoisting rope is wound on the winch device, and a hook is installed at the bottom of the hoisting rope.

[0008] Multiple rams are connected to multiple hooks of multiple lifting mechanisms in a one-to-one manner;

[0009] The control mechanism is mounted on a supporting truss. The control mechanism is connected to two sets of traveling mechanisms to control the movement of the gantry. The control mechanism is connected to multiple moving platforms to control the impact position of multiple tamping hammers. The control mechanism is connected to multiple winches to control the lifting and releasing of multiple tamping hammers, thereby controlling the multiple tamping hammers to perform tamping operations synchronously or asynchronously.

[0010] In some embodiments, each support truss includes a support beam and two diagonal legs. The length direction of the support beam is perpendicular to the length direction of the main beam, and the two diagonal legs are disposed opposite each other on the top surface of the support beam and their top ends are respectively connected to two crossbeams.

[0011] In some embodiments, each traveling mechanism includes a traveling drive device and a wheel assembly connected to the traveling drive device. The traveling drive device drives the wheel assembly to move, thereby moving or turning the gantry.

[0012] In some embodiments, each traveling mechanism includes a traveling drive device and a track assembly connected to the traveling drive device. The traveling drive device drives the track assembly to move, thereby moving or turning the gantry.

[0013] In some embodiments, each traveling mechanism also includes multiple retractable hydraulic outriggers connected to the bottom of the supporting truss; when the traveling mechanism moves the gantry, the hydraulic outriggers shorten to not contact the ground; when the gantry reaches the working position, the hydraulic outriggers extend to press against the ground.

[0014] In some embodiments, each hook is equipped with an automatic release device at its bottom, which is movably connected to the ram.

[0015] In some embodiments, each hook is equipped with a weight sensor, which is communicatively connected to the control mechanism. When the hook lifts the ram, the weight sensor monitors and determines whether the ram is hooked on the hook. If the ram is not hooked on the hook, the control mechanism issues an alarm to remind manual intervention.

[0016] In some embodiments, two tracks are arranged opposite each other on the two crossbeams along their length; two roller sets are arranged opposite each other on the bottom of the moving platform of each lifting mechanism, and a three-in-one reducer is provided on each moving platform. The reducer drives the two roller sets to move back and forth along the two tracks, so as to drive the lifting mechanism to move back and forth along the length of the main beam.

[0017] In some embodiments, the bottom of the moving platform is also provided with a longitudinal moving device, which is slidably connected to the moving platform and can reciprocate between the two crossbeams along a direction perpendicular to the length of the main beam; a hoisting device is connected to the longitudinal moving device.

[0018] In some embodiments, the bottom of the mobile platform is also provided with a rail clamp that is adapted to the track; when the mobile platform moves, the rail clamp remains open; when the mobile platform stops moving, the rail clamp closes after a delay.

[0019] Based on the above technical solution, the gantry-type dynamic compaction machine in this utility model embodiment, through the matching configuration of multiple lifting mechanisms and multiple tamping hammers, can realize multi-point synchronous or alternating compaction operations, significantly improving the construction efficiency of the dynamic compaction machine and better meeting the dynamic compaction construction needs of large-area foundations. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0021] Figure 1 This is a front view of Embodiment 1 of the gantry-type dynamic compaction machine of this utility model;

[0022] Figure 2 This is a side view of Embodiment 1 of the gantry-type dynamic compaction machine of this utility model;

[0023] Figure 3 This is a front view of the lifting mechanism in the gantry-type dynamic compaction machine of this utility model;

[0024] Figure 4 This is a side view of the lifting mechanism in the gantry-type dynamic compaction machine of this utility model;

[0025] Figure 5 This is a front view of Embodiment 2 of the gantry-type dynamic compaction machine of this utility model;

[0026] Figure 6 This is a side view of Embodiment 2 of the gantry-type dynamic compaction machine of this utility model.

[0027] In the diagram: 10. Gantry; 11. Main beam; 111. Crossbeam; 112. End beam; 12. Support truss; 121. Support beam; 122. Diagonal outrigger; 20. Traveling mechanism; 21. Wheel assembly; 22. Track assembly; 23. Hydraulic outrigger; 30. Lifting mechanism; 31. Moving platform; 311. Roller assembly; 312. Longitudinal movement device; 313. Rail clamp; 32. Winch device; 321. Hoisting rope; 322. Hook; 323. Automatic unhooking device; 40. Rammer; 50. Control mechanism. Detailed Implementation

[0028] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, it should be understood that the terms "center", "lateral", "longitudinal", "upper", "lower", "top", "bottom", "inner", "outer", "left", "right", "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

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

[0031] Example 1:

[0032] refer to Figures 1-4 As shown, this utility model provides a gantry-type dynamic compaction machine, which includes a gantry 10, a control mechanism 50, two sets of traveling mechanisms 20, multiple sets of lifting mechanisms 30, and multiple tamping hammers 40.

[0033] The gantry 10 includes a main beam 11 and two sets of supporting trusses 12. The main beam 11 is horizontally arranged and includes two opposing crossbeams 111 and two end beams 112 connecting the two ends of the crossbeams 111. The two crossbeams 111 and the two end beams 112 together form a U-shaped main beam 11. The length direction of the crossbeams 111 is consistent with the length direction of the main beam 11. The two sets of supporting trusses 12 are arranged opposite each other at both ends of the main beam 11 along its length to support the main beam 11.

[0034] Two sets of traveling mechanisms 20 are respectively set at the bottom of the two sets of supporting trusses 12 to drive the gantry 10 to travel, so that the dynamic compaction machine has the ability to travel, including moving and turning; the turning modes of the dynamic compaction machine include conventional turning mode, figure-eight turning mode, oblique turning mode, and stationary turning mode.

[0035] Multiple lifting mechanisms 30 are slidably connected to the main beam 11 and can reciprocate along the length of the main beam 11. Each lifting mechanism 30 includes a moving platform 31 and a winch device 32; the moving platform 31 is slidably connected to the main beam 11 and can reciprocate along the length of the main beam 11; the winch device 32 is connected below the moving platform 31 and located between two crossbeams 111, that is, within the U-shaped space of the main beam 11; the winch device 32 has a hoisting rope 321 wound around it, and a hook 322 is installed at the bottom end of the hoisting rope 321. Multiple rams 40 are movably connected to the multiple hooks 322 of the multiple lifting mechanisms 30 one-to-one; the winch device 32 provides power for the lifting and hoisting of the rams 40.

[0036] The control mechanism 50 is mounted on a supporting truss 12. The control mechanism 50 is connected to two sets of traveling mechanisms 20 to control the movement of the gantry 10, i.e., the movement of the dynamic compaction machine. The control mechanism 50 is also connected to multiple moving platforms 31 to control the positions of multiple lifting mechanisms 30 on the main beam 11, i.e., the impact positions of the multiple hammers 40. Furthermore, the control mechanism 50 is connected to multiple winches 32 to control the lifting and releasing of the multiple hammers 40, thereby controlling the multiple hammers 40 to perform compaction operations synchronously or asynchronously.

[0037] The above illustrative embodiment, through the setting of multiple lifting mechanisms 30, enables a single dynamic compaction machine to achieve synchronous or alternating compaction operations of multiple hammers 40, that is, multiple compaction points can be compacted at each time, thereby significantly improving the construction efficiency of the dynamic compaction machine; through the setting of the moving platform 31 on the lifting mechanism 30, the compaction position can be conveniently adjusted, ensuring the accuracy of the compaction position, and without moving the dynamic compaction machine, it can carry out compaction operations on most of the ground within the span of the gantry 10, further improving construction efficiency and better meeting the dynamic compaction construction needs of large-area foundations.

[0038] refer to Figure 2 As shown, in some embodiments, each support truss 12 includes a support beam 121 and two inclined legs 122. The length direction of the support beam 121 is perpendicular to the length direction of the main beam 11. The two inclined legs 122 are arranged opposite each other on the top surface of the support beam 121, and the top ends of the two inclined legs 122 are respectively connected to two crossbeams 111. Thus, the entire support truss 12 forms a triangular support structure, which can provide more stable support for the gantry 10, reduce the risk of swaying and tilting of the gantry 10 during the tamping operation, and improve construction safety.

[0039] refer to Figure 1 , Figure 2As shown, in some embodiments, each traveling mechanism 20 includes a traveling drive device and a wheel assembly 21 connected to the traveling drive device; the traveling drive device includes a drive axle and a driven axle, and a control mechanism 50 is connected to the drive axle to control the operation of the traveling drive device; the traveling drive device is used to drive the wheel assembly 21 to move, thereby moving or turning the gantry 10. This illustrative embodiment uses the wheel assembly 21 as the traveling component, giving the dynamic compaction machine good mobility and maneuverability, facilitating its movement and turning on the construction site.

[0040] refer to Figure 2 As shown, in some embodiments, each traveling mechanism 20 also includes multiple hydraulic outriggers 23, which are connected to the bottom of the support beam 121 of the support truss 12. The hydraulic outriggers 23 are telescopic in height. When the traveling mechanism 20 moves the gantry 10, the hydraulic outriggers 23 shorten to avoid contact with the ground, thus preventing interference with the movement of the dynamic compaction machine. When the gantry 10 reaches the working position, the hydraulic outriggers 23 extend to press against the ground, increasing the contact area between the dynamic compaction machine and the ground, and preventing the dynamic compaction machine from moving during operation and affecting the compaction position. This illustrative embodiment provides additional support force during the operation of the dynamic compaction machine through the hydraulic outriggers 23, ensuring the overall stability of the dynamic compaction machine, improving the accuracy of the compaction position and the compaction effect, and the hydraulic outriggers 23 can also play a lifting and supporting role when the dynamic compaction machine turns at a large angle, reducing wear on the wheel assembly 21.

[0041] refer to Figure 1 As shown, in some embodiments, each hook 322 is equipped with an automatic release device 323 at its bottom, which is movably connected to the tamping hammer 40. When the tamping hammer 40 is lifted to a preset height, it is automatically released by the automatic release device 323, allowing it to fall freely for compaction. Furthermore, the lowering of the hook 322 and automatic release device 323, the attachment of the tamping hammer 40, and the lifting and releasing of the tamping hammer 40 are all automated operations. This better meets the needs of repeated compaction at the same location during actual construction, improving the construction efficiency of the dynamic compaction machine and reducing the labor intensity of operators. This illustrative embodiment, through the setup of hook 322 + automatic release device 323, improves the automation level of the dynamic compaction machine's compaction operation, reduces the workload and risks of manual operation, and enhances the safety and construction efficiency of the compaction operation.

[0042] In some embodiments, each hook 322 is equipped with a weight sensor (not shown), which is communicatively connected to the control mechanism 50. When the hook 322 lifts the hammer 40, the weight sensor monitors and determines whether the hammer 40 is hooked onto the hook 322, i.e., it determines whether the hammer 40 is hooked by weight detection. If the hammer 40 is detected to be hooked onto the hook 322, normal operation continues. If the hammer 40 is detected not to be hooked onto the hook 322, the lifting mechanism 30 stops, and the control mechanism 50 issues an alarm to remind manual intervention. The hammering operation can then continue manually or after hooking the hammer. This improves the automation and reliability of hammer hooking.

[0043] refer to Figure 2 , Figure 4 As shown, in some embodiments, two tracks (not shown) are arranged opposite each other along the length of the two crossbeams 111; two roller sets 311 are arranged opposite each other at the bottom of the moving platform 31 of each lifting mechanism 30, and each moving platform 31 is equipped with a three-in-one reducer (not shown). The reducer drives the two roller sets 311 to move back and forth along the two tracks, so as to drive the lifting mechanism 30 to move back and forth along the length of the main beam 11. The reducer provides driving force for the movement of the moving platform 31, controls the movement speed, and ensures the smoothness and accuracy of the movement. Thus, the ramming position of the hammer 40 can be adjusted laterally within the span of the gantry 10, improving the construction efficiency and versatility of the dynamic compaction machine.

[0044] refer to Figure 4 As shown, in some embodiments, the bottom of the moving platform 31 is also provided with a longitudinal moving device 312. The longitudinal moving device 312 is slidably connected to the moving platform 31 and can reciprocate between the two crossbeams 111 along a direction perpendicular to the length of the main beam 11. The longitudinal moving device 312 can be driven by a hydraulic push rod under the control of the control mechanism 50. The winch device 32 is connected to the longitudinal moving device 312, and the longitudinal moving device 312 drives the winch device 32 to reciprocate along a direction perpendicular to the length of the main beam 11. This allows for longitudinal fine-tuning of the impact position of the hammer 40 within the U-shaped space of the main beam 11, further improving the accuracy of the impact position.

[0045] refer to Figure 3 As shown, in some embodiments, each movable platform 31 is also provided with a rail clamp 313 at its bottom, which is adapted to the track. When the movable platform 31 moves along the main beam 11, the rail clamp 313 remains open, without affecting the smooth movement of the movable platform 31; when the movable platform 31 stops moving, the rail clamp 313 closes after a delay to lock the movable platform 31 onto the track of the main beam 11. This illustrative embodiment, through the setting of the rail clamp 313, can resist the upward throwing force generated on the movable platform 31 when the hammer 40 is suddenly released, preventing the movable platform 31 from moving or shifting, ensuring the stability and safety of the dynamic compaction machine, and ensuring the accuracy of the hammer 40's impact position.

[0046] The following is combined Figures 1-4 Briefly describe the working process of the gantry-type dynamic compaction machine of this utility model:

[0047] 1) Start the dynamic compaction machine, operate the dynamic compaction machine to the working position, and raise the hydraulic outriggers 23;

[0048] 2) Adjust the position of multiple hoisting mechanisms 30 on the main beam 11, and adjust the position of multiple winches 32 on their respective moving platforms 31; place multiple rams 40 one by one under the hooks 322 of the multiple winches 32.

[0049] 3) The hook 322 quickly descends above the rammer 40 and hooks the rammer 40. After the hook 322 lifts the rammer 40 and raises it to the preset height, the rammer 40 is released by the automatic unhooking device 323 to complete one tamping operation at the preset tamping point. Then the hook 322 descends again and hooks the rammer 40, and lifts the rammer 40 again to carry out the tamping operation until the preset number of tamping operations at the preset tamping point is completed.

[0050] It should be noted that multiple hammers 40 can perform tamping operations at multiple tamping points simultaneously or alternately. For each lifting mechanism 30, after the tamping operation at one tamping point is completed, the hook 322 drives the hammer 40 to move to the next tamping point to continue the tamping operation until the tamping operation within the span of the gantry 10 is completed. Then, the hydraulic outriggers 23 are retracted, and the dynamic compaction machine is operated to move to the next working position. Steps 1)-3) are repeated until the tamping operation of the preset construction site is completed.

[0051] Example 2:

[0052] refer to Figure 5 , Figure 6 As shown, based on Embodiment 1, the wheel assembly 21 in each set of walking mechanisms 20 can be replaced with a track assembly 22, and the number of track assemblies 22 in each set of walking mechanisms 20 is at least one. The walking drive device drives the track assembly 22 to move, thereby moving or turning the gantry 10. Using the track assembly 22 as the walking component can increase the contact area between the dynamic compaction machine and the ground, reduce the pressure on the ground, and is suitable for various complex ground conditions, such as soft ground and muddy ground; the track assembly 22 can provide better grip and stability, preventing the dynamic compaction machine from sinking into the ground or slipping; and the track assembly 22 has good off-road performance, can adapt to construction sites with different terrains, and expands the application range of the dynamic compaction machine.

[0053] In summary, the gantry-type dynamic compaction machine of this invention can achieve multi-point synchronous or alternating compaction operations, which significantly improves the construction efficiency of the dynamic compaction machine, better meets the needs of dynamic compaction construction of large-area foundations, and improves the automation level of the dynamic compaction machine's compaction operation, reduces the workload and risks of manual operation, and enhances the safety of the compaction operation.

[0054] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0055] The above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A gantry-type dynamic compaction machine, characterized in that, include: A portal frame includes a main beam and two sets of supporting trusses; the main beam is horizontally arranged and includes two crossbeams arranged opposite each other and two end beams connecting the two ends of the two crossbeams; the two sets of supporting trusses are arranged opposite each other at both ends of the main beam along its length to support the main beam; Two sets of traveling mechanisms are respectively installed at the bottom of the two sets of supporting trusses to drive the gantry to travel; Multiple lifting mechanisms are provided. Each lifting mechanism includes a moving platform and a winch device. The moving platform is slidably connected to the main beam and can reciprocate along the length of the main beam. The winch device is connected below the moving platform and located between two crossbeams. A hoisting rope is wound around the winch device, and a hook is installed at the bottom end of the hoisting rope. Multiple rams are movably connected to multiple hooks of the multiple sets of the aforementioned lifting mechanisms, one by one; A control mechanism is mounted on one of the supporting trusses; the control mechanism is connected to two sets of traveling mechanisms to control the travel of the gantry; the control mechanism is connected to multiple mobile platforms to control the tamping positions of multiple tamping hammers; the control mechanism is connected to multiple winches to control the lifting and releasing of multiple tamping hammers, thereby controlling the multiple tamping hammers to perform tamping operations synchronously or asynchronously.

2. The gantry-type dynamic compaction machine according to claim 1, characterized in that, Each of the supporting trusses includes a supporting beam and two diagonal legs. The length direction of the supporting beam is perpendicular to the length direction of the main beam. The two diagonal legs are disposed opposite each other on the top surface of the supporting beam and their top ends are respectively connected to two crossbeams.

3. The gantry-type dynamic compaction machine according to claim 1, characterized in that, Each of the aforementioned walking mechanisms includes a walking drive device and a wheel assembly connected to the walking drive device. The walking drive device drives the wheel assembly to move, thereby causing the gantry to move or turn.

4. The gantry-type dynamic compaction machine according to claim 1, characterized in that, Each of the aforementioned walking mechanisms includes a walking drive device and a track assembly connected to the walking drive device. The walking drive device drives the track assembly to move, thereby causing the gantry to move or turn.

5. The gantry-type dynamic compaction machine according to claim 3 or 4, characterized in that, Each of the aforementioned walking mechanisms also includes multiple retractable hydraulic outriggers, which are connected to the bottom of the supporting truss. When the walking mechanism moves the gantry, the hydraulic outriggers shorten to not contact the ground. When the gantry reaches the working position, the hydraulic outriggers extend to press against the ground.

6. The gantry-type dynamic compaction machine according to claim 1, characterized in that, Each of the hooks is equipped with an automatic unhooking device at its bottom, which is movably connected to the tamping hammer.

7. The gantry-type dynamic compaction machine according to claim 1 or 6, characterized in that, Each hook is equipped with a weight sensor, which is communicatively connected to the control mechanism. When the hook lifts the ram, the weight sensor monitors and determines whether the ram is hooked on the hook. If the ram is not hooked on the hook, the control mechanism issues an alarm to remind manual intervention.

8. The gantry-type dynamic compaction machine according to claim 1, characterized in that, Two tracks are arranged opposite each other along the length of the two beams; two roller sets are arranged opposite each other at the bottom of the moving platform of each lifting mechanism, and a three-in-one reducer is provided on each moving platform. The reducer drives the two roller sets to move back and forth along the two tracks, so as to drive the lifting mechanism to move back and forth along the length of the main beam.

9. The gantry-type dynamic compaction machine according to claim 8, characterized in that, The bottom of the moving platform is also equipped with a longitudinal moving device, which is slidably connected to the moving platform and can reciprocate between the two crossbeams along a direction perpendicular to the length of the main beam; the hoisting device is connected to the longitudinal moving device.

10. The gantry-type dynamic compaction machine according to claim 8, characterized in that, The bottom of the mobile platform is also equipped with a rail clamp, which is adapted to the track; when the mobile platform moves, the rail clamp remains open; when the mobile platform stops moving, the rail clamp closes after a delay.

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