Earth ramming device for foundation construction

Abstract

The invention relates to the technical field of engineering construction, in particular to a foundation construction earth ramming device which comprises a machine base, a ramming frame, an eccentric hammer and an adjusting mechanism, the ramming frame is provided with an earth ramming end and a connecting end, the connecting end is hinged to the machine base, and a first rotating shaft is arranged at the earth ramming end; a vertical plane rectangular coordinate system is established by taking any point on the axis of the first rotating shaft as an original point, the vertical plane rectangular coordinate system is provided with a first quadrant, a second quadrant, a third quadrant and a fourth quadrant, the eccentric hammer comprises a mounting disc and a balancing weight, and the mounting disc sleeves the first rotating shaft and can synchronously rotate along with the first rotating shaft; the mounting disc can slide in the radial direction of the first rotating shaft; the balancing weight is fixedly arranged on the mounting disc; and the adjusting mechanism is configured to inversely adjust the distance between the balancing weight and the first rotating shaft according to the soil hardness of the to-be-tamped foundation when the balancing weight is located in the third quadrant, so that the hitting force of the tamping frame to the ground is increased, and the tamping device can adapt to the foundations with different soil properties.

Description

Technical Field

[0001] The invention relates to the technical field of engineering construction, and in particular to a ramming device for foundation construction. Background Art

[0002] An underground garage is a building facility that uses underground space for parking vehicles. When building an underground garage, the foundation needs to be compacted. Due to the small underground space and limited height, large-scale ramming equipment cannot enter the underground space, so frog-type rammers are often used for compaction.

[0003] The frog-type compactor is a compacting machine that uses impact and vibration to compact backfill soil in layers. It is widely used in construction projects such as buildings, roads, and water conservancy. Its working principle is to use an electric motor to drive the eccentric block to rotate, generating centrifugal force, so that the rammer swings up and down under the action of the eccentric block, thereby compacting the soil.

[0004] In the related technology, for example, Chinese patent CN220099577U discloses a roadbed compaction device, which drives a first rotating rod and a second rotating rod to rotate simultaneously through a driving mechanism, drives an eccentric wheel to swing, thereby driving a hammer plate to hammer the ground while moving forward to perform soil compaction operations; when the striking area of ​​the hammer plate cannot meet the demand, the user can install an extension plate on the surface of the hammer plate to increase the hammering area.

[0005] Although the above-mentioned roadbed compaction device can increase the area of ​​the foundation compacted in a single time to a certain extent, it is found in the actual tamping process that when compacting foundations of different soil types, the compaction energy required for different soil types is different, resulting in the need to replace configuration blocks of different weights or replace different compactors. This is not only troublesome to operate, but also has a poor compaction effect, affecting the tamping efficiency. Summary of the invention

[0006] Based on this, it is necessary to provide a foundation construction tamping device to address the problems of poor compaction effect and troublesome operation in the current foundation construction process.

[0007] The above purpose is achieved through the following technical solutions: A ramming device for foundation construction, the ramming device for foundation construction comprising: Machine base; A tamping frame, the tamping frame having a tamping end and a connecting end, the connecting end being hinged on the machine base; the tamping end being suspended and used for tamping the soil, a first rotating shaft being horizontally arranged on the tamping end, and the first rotating shaft being capable of self-rotation; Establishing a vertical plane rectangular coordinate system with any point on the axis of the first rotating shaft as the origin, wherein the vertical plane rectangular coordinate system has a first quadrant, a second quadrant, a third quadrant and a fourth quadrant; An eccentric weight, wherein the eccentric weight comprises a mounting plate and a counterweight block, wherein the mounting plate is sleeved on the first rotating shaft and can rotate synchronously with the first rotating shaft, and the mounting plate can slide along the radial direction of the first rotating shaft; and the counterweight block is fixedly arranged on the mounting plate; The adjusting mechanism is configured to adjust the distance between the counterweight block and the first rotating shaft in inverse proportion to the hardness of the soil of the foundation to be compacted when the counterweight block is located in the third quadrant.

[0008] Furthermore, the adjustment mechanism is also configured to maintain the distance between the counterweight block and the first rotating shaft when the counterweight block is in the third quadrant when the counterweight block is in the fourth quadrant.

[0009] Furthermore, the adjustment mechanism is also configured to adjust the distance between the counterweight block and the first rotating shaft in direct proportion to the hardness of the soil of the foundation to be compacted when the counterweight block is located in the first quadrant.

[0010] Furthermore, the adjustment mechanism is also configured to maintain the distance between the counterweight block and the first rotating shaft when the counterweight block is in the first quadrant when the counterweight block is in the second quadrant.

[0011] Furthermore, the adjustment mechanism includes a mounting hole and two drive cylinders, the mounting hole is arranged on the mounting plate and extends along the radial direction of the mounting plate, and the extension direction of the mounting hole passes through the counterweight block; the two drive cylinders are symmetrically inserted in the mounting hole, and the ends of the output shafts of the two drive cylinders are jointly clamped on the first rotating shaft.

[0012] Furthermore, the output power of the driving cylinder is provided by hydraulic pressure.

[0013] Furthermore, there are two eccentric weights, which are symmetrically arranged.

[0014] Furthermore, a second rotating shaft is horizontally arranged on the machine base; the connecting end can be rotatably sleeved on the second rotating shaft; the foundation construction ramming device also includes a driving assembly and a transmission assembly, the driving assembly is configured to drive the second rotating shaft to rotate; the transmission assembly is configured to transmit the rotation of the second rotating shaft to the first rotating shaft.

[0015] Furthermore, the driving assembly includes a driving motor, a first transmission wheel, a second transmission wheel and a first transmission member, the driving motor is arranged on the machine base; the first transmission wheel is fixedly sleeved on the motor shaft of the driving motor; the second transmission wheel is fixedly sleeved on the second rotating shaft; the first transmission member is transmission-connected between the first transmission wheel and the second transmission wheel.

[0016] Furthermore, the transmission assembly includes a third transmission wheel, a fourth transmission wheel and a second transmission member, the third transmission wheel is fixedly sleeved on the second rotating shaft; the fourth transmission wheel is fixedly sleeved on the first rotating shaft; and the second transmission member is transmission-connected between the third transmission wheel and the fourth transmission wheel.

[0017] The beneficial effects of the present invention are: When in use, a foundation construction tamping device provided by the present invention first drives the first rotating shaft to rotate, and the first rotating shaft synchronously drives the eccentric hammer to rotate; during the rotation of the eccentric hammer, when the counterweight block is in the first and second quadrants, the eccentric hammer drives the tamping frame to rise under the action of centrifugal force, and when the counterweight block is in the third quadrant, the tamping frame accelerates to descend under the action of centrifugal force and its own weight. At the same time, the distance between the counterweight block and the first rotating shaft is adjusted in inverse proportion to the hardness of the soil of the foundation to be compacted through the adjustment mechanism, so as to increase the impact force of the tamping frame on the ground, thereby being able to adapt to foundations of different soil types and improve the compaction effect.

[0018] Furthermore, by setting up an adjustment mechanism, it is also configured to maintain the distance between the counterweight block and the first rotating shaft when the counterweight block is in the third quadrant when it is in the fourth quadrant, so that when in use, the centrifugal force of the counterweight block can be reduced, thereby reducing the resistance encountered by the foundation construction ramming device when moving forward.

[0019] Furthermore, by setting up an adjustment mechanism, it is also configured that when the counterweight block is located in the first quadrant, the distance between the counterweight block and the first rotating shaft is adjusted in direct proportion to the hardness of the soil of the foundation to be compacted, so that when in use, the centrifugal force of the counterweight block is increased, and the height to which the counterweight block can drive the tamping frame to rise is increased, thereby improving the tamping effect of the tamping frame on the ground.

[0020] Furthermore, by setting up an adjustment mechanism, it is also configured that when the counterweight block is in the second quadrant, the distance between the counterweight block and the first rotating shaft when it is in the first quadrant is maintained, so that when in use, the centrifugal force of the counterweight block is increased, the height to which the counterweight block can drive the rammer frame to rise is further increased, thereby further improving the ramming effect of the rammer frame on the ground.

[0021] Furthermore, by setting two eccentric hammers and symmetrically arranging them, when in use, on the one hand, the force is balanced when the ramming frame is lifted to reduce wear, and on the other hand, the impact force of the ramming frame on the ground is more uniform when hitting the ground, ensuring the compactness of the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the three-dimensional structure of a foundation construction tamping device provided by an embodiment of the present invention; Figure 2 A schematic diagram of the front view of the structure of a foundation construction tamping device provided by an embodiment of the present invention; Figure 3 A schematic side structural diagram of a foundation construction tamping device provided by an embodiment of the present invention; Figure 4 for Figure 3 Middle AA section view; Figure 5 for Figure 4 Schematic diagram of the local enlarged structure at point B in the middle.

[0023] in: 1. Machine base; 11. Second rotating shaft; 12. Bracket; 13. Handle; 14. Fixed bearing seat; 2. Ramming frame; 201. Ramming end; 202. Connecting end; 21. First rotating shaft; 3. Eccentric weight; 31. Mounting plate; 32. Counterweight; 4. Adjustment mechanism; 41. Mounting hole; 42. Driving cylinder; 43. Clip; 44. Key; 5. driving assembly; 51. driving motor; 52. first transmission wheel; 53. second transmission wheel; 54. first transmission belt; 6. Transmission assembly; 61. Third transmission wheel; 62. Fourth transmission wheel; 63. Second transmission belt. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned herein, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0026] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0027] As Figures 1 to 5 shown, the rammed earth device for foundation construction provided by an embodiment of the present invention is used for ramming the foundation, and is configured to include a machine base 1, a rammer frame 2, an eccentric hammer 3 and an adjustment mechanism 4. The rammer frame 2 has a rammed earth end 201 and a connection end 202, and the connection end 202 is hinged to the machine base 1; the rammed earth end 201 is suspended and is used for ramming the earth. A first rotating shaft 21 is horizontally arranged on the rammed earth end 201, and the first rotating shaft 21 can rotate self - sufficiently; taking any point on the axis of the first rotating shaft 21 as the origin, a vertical plane rectangular coordinate system is established, and the vertical plane rectangular coordinate system has a first quadrant, a second quadrant, a third quadrant and a fourth quadrant; the eccentric hammer 3 includes a mounting disc 31 and a counterweight 32. The mounting disc 31 is sleeved on the first rotating shaft 21 and can rotate synchronously with the first rotating shaft 21, and the mounting disc 31 can slide along the radial direction of the first rotating shaft 21; the counterweight 32 is fixedly arranged on the mounting disc 31; the adjustment mechanism 4 is configured such that when the counterweight 32 is located in the third quadrant, it can inversely adjust the distance between the counterweight 32 and the first rotating shaft 21 according to the soil hardness of the foundation to be rammed.

[0028] Specifically in this embodiment, as Figure 1 shown, the machine base 1 is set as a flat - plate - shaped structure, and its plate surface is arranged horizontally during use; the rammed earth end 201 is set as a strip - shaped structure in the shape of "匚" with the opening facing upwards, and the connection end 202 is set as a triangular - plate - shaped structure. When installed, the left end of the connection end 202 is fixedly connected to the rammed earth end 201 and is located between the two suspended ends of the rammed earth end 201, and the right end is hinged to the machine base 1; to facilitate the installation of the first rotating shaft 21, as Figure 3 shown, fixed bearing seats 14 are arranged at both tops of the rammed earth end 201, and the first rotating shaft 21 is set to be inserted into the fixed bearing seats 14 during installation; as Figure 2 shown, the shape of the counterweight 32 is set as a sector - ring shape, and when installed, it is coaxially sleeved on the mounting disc 31. Taking any point on the axis of the first rotating shaft 21 as the origin, the upper - right region of the plane rectangular coordinate system is the first quadrant, the upper - left region is the second quadrant, the lower - left region is the third quadrant, and the lower - right region is the fourth quadrant.

[0029] Initially, the mounting plate 31 and the first rotating shaft 21 are coaxially arranged, at this time, the distance between the counterweight block 32 and the first rotating shaft 21 is r, and the tamping energy of the tamping frame 2 hitting the ground is limited; when the counterweight block 32 is located in the third quadrant and the hardness of the soil of the foundation to be compacted increases, the adjusting mechanism 4 is configured to reduce the distance between the counterweight block 32 and the first rotating shaft 21, at this time the distance between the counterweight block 32 and the first rotating shaft 21 is d1, d1<r; when the counterweight block 32 is located in the third quadrant and the hardness of the soil of the foundation to be compacted decreases, the adjusting mechanism 4 is configured to increase the distance between the counterweight block 32 and the first rotating shaft 21, at this time the distance between the counterweight block 32 and the first rotating shaft 21 is D1, D1<r.

[0030] When in use, the first rotating shaft 21 is first driven to rotate, and the first rotating shaft 21 synchronously drives the eccentric hammer 3 to rotate; during the rotation of the eccentric hammer 3, when the counterweight block 32 is in the first and second quadrants, the eccentric hammer 3 drives the tamping frame 2 to rise under the action of centrifugal force, and when the counterweight block 32 is in the third quadrant, the tamping frame 2 is accelerated to descend under the action of centrifugal force and its own weight. At the same time, the distance between the counterweight block 32 and the first rotating shaft 21 is inversely adjusted by the adjusting mechanism 4 according to the hardness of the soil to be compacted, so as to increase the impact force of the tamping frame 2 on the ground, so as to adapt to foundations of different soil types and improve the compaction effect.

[0031] Preferably, the adjustment mechanism 4 is configured to adjust the distance between the counterweight block 32 and the first rotating shaft 21 only when the counterweight block 32 is within the 45° range or a smaller angle range in the lower half of the third quadrant, so as to ensure both the acceleration effect of the counterweight block 32 on the ramming frame 2 and the increase of the ramming force of the ramming frame 2.

[0032] In some embodiments, the adjustment mechanism 4 is further configured to maintain the distance between the counterweight 32 and the first rotation axis 21 when the counterweight 32 is in the third quadrant when the counterweight 32 is in the fourth quadrant.

[0033] Specifically in this embodiment, when the counterweight block 32 is located in the fourth quadrant, the distance between the counterweight block 32 and the first rotating shaft 21 is d1 or D1, so that the centrifugal force on the counterweight block 32 is smaller, and then the right component of the centrifugal force in the horizontal direction is smaller, thereby reducing the resistance encountered by the foundation construction ramming device when moving to the left.

[0034] In a further embodiment, the adjustment mechanism 4 is further configured to adjust the distance between the counterweight block 32 and the first rotating shaft 21 in direct proportion to the hardness of the soil of the foundation to be compacted when the counterweight block 32 is located in the first quadrant.

[0035] Specifically in this embodiment, when the counterweight block 32 is located in the first quadrant and the hardness of the soil of the foundation to be compacted increases, the adjusting mechanism 4 is configured to increase the distance between the counterweight block 32 and the first rotating shaft 21. At this time, the distance between the counterweight block 32 and the first rotating shaft 21 is d2, d2>r; when the counterweight block 32 is located in the first quadrant and the hardness of the soil of the foundation to be compacted decreases, the adjusting mechanism 4 is configured to reduce the distance between the counterweight block 32 and the first rotating shaft 21. At this time, the distance between the counterweight block 32 and the first rotating shaft 21 is D2, D2>r.

[0036] During use, when the counterweight 32 is located in the first quadrant, the distance between the counterweight 32 and the first rotating shaft 21 is d2 or D2, so that the centrifugal force applied to the counterweight 32 is larger, so that the counterweight 32 can drive the ramming frame 2 to rise to a higher height, thereby increasing the ramming energy of the ramming frame 2 when ramming the ground, which is beneficial to improving the ramming effect.

[0037] In a further embodiment, the adjustment mechanism 4 is further configured to maintain the distance between the counterweight 32 and the first rotating shaft 21 when the counterweight 32 is in the first quadrant when the counterweight 32 is in the second quadrant.

[0038] Specifically in this embodiment, when the counterweight 32 is located in the second quadrant, the distance between the counterweight 32 and the first rotating shaft 21 is d2 or D2, so that the centrifugal force applied to the counterweight 32 is larger, so that the counterweight 32 can further drive the ramming frame 2 to rise to a higher height, thereby further increasing the ramming energy of the ramming frame 2 when it rams the ground, which is conducive to further improving the ramming effect.

[0039] In other embodiments, the adjusting mechanism 4 is configured to include a mounting hole 41 and two drive cylinders 42. The mounting hole 41 is arranged on the mounting plate 31 and extends along the radial direction of the mounting plate 31. The extension direction of the mounting hole 41 passes through the counterweight block 32; the two drive cylinders 42 are symmetrically inserted into the mounting hole 41, and the ends of the output shafts of the two drive cylinders 42 are jointly clamped on the first rotating shaft 21.

[0040] Specifically in this embodiment, Figure 4 and Figure 5 As shown, the axes of the mounting hole 41 and the mounting disk 31 are arranged to coincide with each other, the driving cylinder 42 is arranged with the fixed end arranged at the end of the mounting hole 41, and the output end points to the axis of the mounting disk 31, and an arc-shaped clip 43 is fixedly sleeved at the end of each driving cylinder 42, and the clip 43 is arranged to be sleeved on the first rotating shaft 21 during installation, and is connected to the first rotating shaft 21 through a key 44, so that the mounting disk 31 can rotate with the first rotating shaft 21.

[0041] It can be understood that the drive cylinder 42 can be configured as any one of a hydraulic cylinder, a pneumatic cylinder or an electric cylinder; wherein when the drive cylinder 42 is configured as a hydraulic cylinder, its output power is provided by hydraulic pressure.

[0042] During use, when the counterweight 32 is in the first quadrant, the two driving cylinders 42 are respectively located in the first quadrant and the third quadrant, wherein the output shaft of the driving cylinder 42 located in the first quadrant extends out, and the output shaft of the driving cylinder 42 located in the third quadrant retracts, so that the counterweight 32 moves in the direction away from the first rotating shaft 21, thereby increasing the centrifugal force exerted on the counterweight 32; when the counterweight 32 is in the third quadrant, the two driving cylinders 42 are respectively located in the first quadrant and the third quadrant, wherein the output shaft of the driving cylinder 42 located in the first quadrant extends out, and the output shaft of the driving cylinder 42 located in the third quadrant retracts, thereby causing the counterweight 32 to move in the direction close to the first rotating shaft 21. At this time, the thrust force of the output shaft of the driving cylinder 42 increases the force on the first rotating shaft 21, thereby increasing the force on the ramming frame 2, thereby increasing the impact force of the ramming frame 2 on the ground and improving the ramming effect.

[0043] In other embodiments, in order to reduce the wear between the first rotating shaft 21 and the fixed bearing seat 14, the number of eccentric weights 3 is two and they are symmetrically arranged.

[0044] Specifically in this embodiment, the number of connection terminals 202 is set to two, such as Figure 1 As shown, two connection ends 202 are spaced apart and symmetrically arranged on the rammed earth end 201 , and the eccentric weight 3 is arranged between the connection ends 202 and the ends of the rammed earth end 201 .

[0045] When in use, the lifting force of the two eccentric hammers 3 on the ramming frame 2 is symmetrically arranged about the first rotating shaft 21. On the one hand, the friction strength between the first rotating shaft 21 and the multiple fixed bearing seats 14 is consistent. On the other hand, the connection strength between the fixed bearing seats 14 and the ramming frame 2 is consistent, which helps to reduce wear. At the same time, the impact force of the ramming frame 2 on the ground when ramming the ground is more uniform, thereby ensuring the compactness of the ground.

[0046] In other embodiments, in order to facilitate the provision of driving force for the rotation of the first rotating shaft 21, a second rotating shaft 11 is horizontally arranged on the machine base 1; the connecting end 202 can be rotatably sleeved on the second rotating shaft 11; the foundation construction ramming device is configured to also include a driving component 5 and a transmission component 6, the driving component 5 is configured to drive the second rotating shaft 11 to rotate; the transmission component 6 is configured to transmit the rotation of the second rotating shaft 11 to the first rotating shaft 21.

[0047] Specifically in this embodiment, Figure 2 As shown, the second rotating shaft 11 is arranged on the top of the base 1 and is located on the left side; Figure 1 and Figure 3 As shown, the second rotating shaft 11 is arranged to be mounted on the machine base 1 via two fixed bearing seats 14 at both ends during installation.

[0048] In a further embodiment, the drive assembly 5 is configured to include a drive motor 51, a first transmission wheel 52, a second transmission wheel 53 and a first transmission member, the drive motor 51 is arranged on the machine base 1; the first transmission wheel 52 is fixedly sleeved on the motor shaft of the drive motor 51; the second transmission wheel 53 is fixedly sleeved on the second rotating shaft 11; the first transmission member is transmission-connected between the first transmission wheel 52 and the second transmission wheel 53.

[0049] Specifically in this embodiment, Figure 2 As shown, the drive motor 51 is arranged on the top of the base 1 and is located in the middle; in order to facilitate the installation of the drive motor 51, a bracket 12 is arranged on the top of the base 1, and the bracket 12 is arranged to be an inverted "π" shape structure. The drive motor 51 is arranged to be fixedly connected to the top of the bracket 12 by bolts during installation, and the motor shaft of the drive motor 51 is arranged horizontally to the left; the first transmission wheel 52 and the second transmission wheel 53 can both be arranged to be pulleys; the first transmission member can be arranged to be a first transmission belt 54, and the first transmission belt 54 is arranged to be transmission sleeved on the first transmission wheel 52 at one end and transmission sleeved on the second transmission wheel 53 at the other end during installation.

[0050] When in use, the driving motor 51 is started, the driving motor 51 drives the first transmission wheel 52 to rotate, the first transmission wheel 52 drives the second transmission wheel 53 to rotate through the first transmission belt 54, and the second transmission wheel 53 drives the second rotating shaft 11 to rotate.

[0051] It can be understood that the first transmission wheel 52 and the second transmission wheel 53 can also be set as sprockets; the first transmission member can also be set as a chain.

[0052] In other embodiments, the transmission assembly 6 is configured to include a third transmission wheel 61, a fourth transmission wheel 62 and a second transmission member, the third transmission wheel 61 is fixedly sleeved on the second rotating shaft 11; the fourth transmission wheel 62 is fixedly sleeved on the first rotating shaft 21; the second transmission member is transmission-connected between the third transmission wheel 61 and the fourth transmission wheel 62.

[0053] Specifically in this embodiment, Figure 1 As shown, the third transmission wheel 61 and the fourth transmission wheel 62 can both be set as pulleys; the second transmission member can be set as a second transmission belt 63, and the second transmission belt 63 is set to be connected to the third transmission wheel 61 at one end and the fourth transmission wheel 62 at the other end during installation.

[0054] When in use, the second rotating shaft 11 drives the third transmission wheel 61 to rotate, the third transmission wheel 61 drives the fourth transmission wheel 62 to rotate through the second transmission belt 63, and the fourth transmission wheel 62 drives the first rotating shaft 21 to rotate.

[0055] It can be understood that the third transmission wheel 61 and the fourth transmission wheel 62 can also be set as sprockets; the second transmission member can also be set as a chain.

[0056] In other embodiments, in order to facilitate pushing the base 1 forward, as Figure 2 As shown, a handle 13 is fixedly arranged on the top of the base 1. The handle 13 is arranged on the right side and is arranged as a rod-shaped structure in the shape of "П".

[0057] In combination with the above embodiments, the use principle and working process of the embodiments of the present invention are as follows: When in use, the drive motor 51 is started, and the drive motor 51 drives the first transmission wheel 52 to rotate, and the first transmission wheel 52 drives the second transmission wheel 53 to rotate through the first transmission belt 54, and the second transmission wheel 53 drives the second rotating shaft 11 to rotate; during the rotation of the second rotating shaft 11, the second rotating shaft 11 drives the third transmission wheel 61 to rotate, the third transmission wheel 61 drives the fourth transmission wheel 62 to rotate through the second transmission belt 63, and the fourth transmission wheel 62 drives the first rotating shaft 21 to rotate; during the rotation of the first rotating shaft 21, the first rotating shaft 21 synchronously drives the mounting plate 31 to rotate through the key 44, the clip 43 and the driving cylinder 42, and the mounting plate 31 drives the counterweight block 32 thereon to rotate, and the counterweight block 32 passes through the first quadrant, the second quadrant, the third quadrant and the fourth quadrant in sequence to form a cycle; at the same time, the machine base 1 is pushed forward by the handle 13.

[0058] During the rotation of the counterweight 32, when the counterweight 32 is in the first quadrant, the two driving cylinders 42 are respectively located in the first quadrant and the third quadrant, wherein the output shaft of the driving cylinder 42 located in the first quadrant extends out, and the output shaft of the driving cylinder 42 located in the third quadrant retracts, so that the counterweight 32 moves in the direction away from the first rotating shaft 21, thereby increasing the centrifugal force exerted on the counterweight 32 to drive the ramming frame 2 to rise to a higher height; when the counterweight 32 is in the second quadrant, the distance between the counterweight 32 and the first rotating shaft 21 remains unchanged, so that the counterweight 32 still has a large centrifugal force, and the eccentric hammer 3 can continue to drive the ramming frame 2 to rise; when the counterweight 32 is in the third quadrant, the two driving cylinders 42 are respectively Located in the first quadrant and the third quadrant, the output shaft of the driving cylinder 42 located in the first quadrant extends out, and the output shaft of the driving cylinder 42 located in the third quadrant retracts, so that the counterweight 32 moves toward the first rotating shaft 21, and the thrust force of the output shaft of the driving cylinder 42 increases the force on the first rotating shaft 21, thereby increasing the force on the ramming frame 2, thereby increasing the impact force of the ramming frame 2 on the ground and improving the ramming effect; when the counterweight 32 is in the fourth quadrant, the distance between the counterweight 32 and the first rotating shaft 21 remains unchanged, so that the counterweight 32 still has a small centrifugal force, thereby making the horizontal backward component of the centrifugal force small, thereby reducing the resistance encountered by the foundation construction ramming device when moving forward.

[0059] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A ramming device for foundation construction, characterized in that: The foundation construction ramming device comprises: Machine base; A tamping frame, the tamping frame having a tamping end and a connecting end, the connecting end being hinged on the machine base; the tamping end being suspended and used for tamping the soil, a first rotating shaft being horizontally arranged on the tamping end, and the first rotating shaft being capable of self-rotation; Establishing a vertical plane rectangular coordinate system with any point on the axis of the first rotating shaft as the origin, wherein the vertical plane rectangular coordinate system has a first quadrant, a second quadrant, a third quadrant and a fourth quadrant; An eccentric weight, wherein the eccentric weight comprises a mounting plate and a counterweight block, wherein the mounting plate is sleeved on the first rotating shaft and can rotate synchronously with the first rotating shaft, and the mounting plate can slide along the radial direction of the first rotating shaft; and the counterweight block is fixedly arranged on the mounting plate; The adjusting mechanism is configured to adjust the distance between the counterweight block and the first rotating shaft in inverse proportion to the hardness of the soil of the foundation to be compacted when the counterweight block is located in the third quadrant.

2. The ramming device for foundation construction according to claim 1, characterized in that: The adjustment mechanism is further configured to maintain the distance between the counterweight block and the first rotating shaft when the counterweight block is in the third quadrant when the counterweight block is in the fourth quadrant.

3. The ramming device for foundation construction according to claim 2, characterized in that: The adjustment mechanism is further configured to adjust the distance between the counterweight block and the first rotating shaft in direct proportion to the hardness of the soil of the foundation to be compacted when the counterweight block is located in the first quadrant.

4. The ramming device for foundation construction according to claim 3, characterized in that: The adjustment mechanism is further configured to maintain the distance between the counterweight and the first rotation axis when the counterweight is in the first quadrant when the counterweight is in the second quadrant.

5. The ramming device for foundation construction according to claim 1, characterized in that: The adjustment mechanism includes a mounting hole and two drive cylinders. The mounting hole is arranged on the mounting plate and extends along the radial direction of the mounting plate. The extension direction of the mounting hole passes through the counterweight block. The two drive cylinders are symmetrically inserted into the mounting hole, and the ends of the output shafts of the two drive cylinders are clamped together on the first rotating shaft.

6. The ramming device for foundation construction according to claim 5, characterized in that: The output power of the driving cylinder is provided by hydraulic pressure.

7. The ramming device for foundation construction according to claim 1, characterized in that: There are two eccentric weights, which are symmetrically arranged.

8. The ramming device for foundation construction according to claim 1, characterized in that: A second rotating shaft is horizontally arranged on the machine base; the connecting end can be rotatably sleeved on the second rotating shaft; the foundation construction ramming device also includes a driving assembly and a transmission assembly, the driving assembly is configured to drive the second rotating shaft to rotate; the transmission assembly is configured to transmit the rotation of the second rotating shaft to the first rotating shaft.

9. The ramming device for foundation construction according to claim 8, characterized in that: The driving assembly includes a driving motor, a first transmission wheel, a second transmission wheel and a first transmission member, the driving motor is arranged on the machine base; the first transmission wheel is fixedly sleeved on the motor shaft of the driving motor; the second transmission wheel is fixedly sleeved on the second rotating shaft; the first transmission member is transmission-connected between the first transmission wheel and the second transmission wheel.

10. The ramming device for foundation construction according to claim 8, characterized in that: The transmission assembly includes a third transmission wheel, a fourth transmission wheel and a second transmission member. The third transmission wheel is fixedly sleeved on the second rotating shaft; the fourth transmission wheel is fixedly sleeved on the first rotating shaft; and the second transmission member is transmission-connected between the third transmission wheel and the fourth transmission wheel.

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