A ramming earth device for earthwork construction

Abstract

The present application relates to earthwork construction equipment technical field, specifically said is a kind of ramming device for earthwork construction, including plate base, the top of plate base is welded with the fender around, the top of the front end of plate base is provided with rammer structure, the corner of the front end of plate base is respectively provided with the back soil structure connected with rammer structure at the bottom of rammer structure two sides.By setting back soil structure linked with rammer structure, reciprocating lifting movement of Y type fork arm is used to drive scraper periodic rotation, when tamper block rises, scraper turns into below ramming position, when tamper block descends and ramming, scraper leaves ramming position, the operation of scraper each time can push the excess earth and stone rammed out back to ramming pit, provide more close to the working surface of flat state for rear shock pressing structure, saves manual flattening process, significantly improves construction efficiency, by motor simultaneously driving rammer structure and hydraulic pump, the synchronous driving of single power source to ramming and shock pressing two sets of systems is realized.

Description

Technical Field

[0001] This invention relates to the field of earthwork construction equipment technology, specifically to a ramming device for earthwork construction. Background Technology

[0002] In earthwork construction, ramming is a crucial step in ensuring the compaction of fill materials such as roadbeds and foundations. Currently, commonly used ramming equipment mainly includes hammer compactors and vibratory rollers.

[0003] Traditional hammer compactors typically rely solely on the free fall of the hammer or mechanical drive for impact compaction. After compaction, excess soil and rock are often squeezed out around the compaction pit, resulting in an uneven working surface that requires additional manpower or equipment for leveling. This not only increases the number of construction steps but also reduces construction efficiency.

[0004] Meanwhile, the tamping and compaction functions of existing ramming equipment are often independent, making it difficult to achieve continuous tamping and compaction operations on the same equipment, resulting in low equipment integration. Therefore, a ramming device for earthwork engineering construction is proposed. Summary of the Invention

[0005] To address the problems in the existing technology, the present invention provides a ramming device for earthwork construction, which solves the problems of the need for additional leveling of the working surface after ramming and low construction efficiency of existing ramming equipment, and solves the problems of low integration of ramming and compaction functions and difficulty in continuous operation of ramming equipment.

[0006] The technical solution adopted by the present invention to solve its technical problem is a ramming device for earthwork construction, including a plate base, a fence welded around the top of the plate base, a ramming hammer structure set at the top of the front end of the plate base, backfilling structures connected to the ramming hammer structure set at the corners on both sides of the bottom of the ramming hammer structure at the front end of the plate base, and a vibration pressing structure set at the bottom of the plate base.

[0007] Specifically, the tamping hammer structure includes two sets of inclined side arms and tamping blocks. A lower shaft is sleeved between the bottom ends of the two sets of side arms through a bearing. The two ends of the lower shaft are fixed to the plate seat through bearing seats. An upper shaft is rotatably installed between the top ends of the two sets of side arms through a bearing. A large synchronous wheel is installed in the middle of the upper shaft through a key pin. Eccentric blocks are symmetrically fixed on both sides of the large synchronous wheel. Y-shaped fork arms are welded to the top and bottom of the two sets of side arms respectively. The ramming block is located at the bottom of the two sets of Y-shaped fork arms, and the top of both ends of the ramming block is welded and fixed to the bottom of the corresponding Y-shaped fork arms.

[0008] Specifically, the ramming hammer structure also includes a first small synchronous pulley and a first medium synchronous pulley. The first small synchronous pulley and the first medium synchronous pulley are respectively mounted on the lower shaft by key pins. The first small synchronous pulley is connected to the large synchronous pulley by a synchronous belt. A motor is mounted on the top of the base plate. A second and third small synchronous pulleys are mounted on the drive shaft of the motor. The second small synchronous pulley is connected to the first medium synchronous pulley via a synchronous belt. When the motor is running, it drives both the second and third small synchronous pulleys to rotate. Based on the transmission with the first medium synchronous pulley, the second small synchronous pulley drives the lower shaft to rotate, causing the first small synchronous pulley on the lower shaft to rotate, which in turn drives the large synchronous pulley to rotate. The large synchronous pulley, due to the eccentric block on it, generates an inertial force that pulls it with each rotation. This causes the side arm to drive the Y-shaped fork arm to move up and down around the lower shaft, making the tamping block continuously tamp the road surface of the route, achieving the soil compaction effect.

[0009] Specifically, the vibration and compaction structure is located behind the ramming hammer structure to further vibrate and compact the road surface after ramming. The vibration and compaction structure includes floating end plates symmetrically arranged on both sides of the bottom of the plate base. Pressure rollers are rotatably installed between the symmetrically arranged end plates through bearings. Grooves are machined at corresponding positions on the top of the end plates and the bottom of the plate base. Shock absorbers are installed in the grooves. The two ends of the shock absorbers are fixed to the end plates and the plate base respectively through flanges. An eccentric shaft is mounted inside the pressure roller via a bearing. The shaft end of one end of the eccentric shaft passes through a corresponding end plate, and a hydraulic motor is mounted on the outside of the end plate via bolts. The drive end of the hydraulic motor is connected to the shaft end of one end of the eccentric shaft.

[0010] Specifically, the shock-absorbing structure also includes an oil tank installed on the top of the plate base. A hydraulic pump and a flow divider valve are installed on the top of the oil tank. The oil inlet of the hydraulic pump is connected to the oil tank through a pipe, and the output end of the hydraulic pump is connected to the inlet of the flow divider valve. The output end of the flow divider valve is connected to the oil inlet of the hydraulic motor through a hose, and the return end of the hydraulic motor is connected to the return end of the oil tank through a hose. A second synchronous pulley is installed on the input shaft of the hydraulic pump. The second synchronous pulley is connected to a third small synchronous pulley via a synchronous belt. After the motor starts running, it will synchronously drive the hydraulic pump to run. The hydraulic pump delivers the hydraulic oil in the oil tank to the diverter valve. The diverter valve diverts the hydraulic oil to each set of hydraulic motors to drive the hydraulic motors to run. The hydraulic oil in the hydraulic motors will flow back to the oil tank. During this period, the hydraulic motors are activated and run, driving the eccentric shaft to rotate. The eccentric shaft will cause the pressure roller to vibrate, which will vibrate the road surface. The shock absorber can reduce the transmission of vibration to the plate seat.

[0011] Specifically, an outer frame is provided on the outer periphery of one end of the ramming hammer structure of the plate base. The two ends of the outer frame are welded and fixed to the two sides of the plate base. Personnel can drive engineering vehicles or other vehicles or equipment with certain tension adjustment to hook onto the outer frame to facilitate the traction and movement of the entire device.

[0012] Specifically, each set of backfill structures includes a set of equipment boxes, a set of scrapers, and a set of eccentric wheels. The eccentric wheels are located on the outside of the equipment boxes. The rotating shaft of the center of the eccentric wheel is rotatably connected to the equipment box at the corresponding position through a sealed bearing. The equipment box is located at one end of the plate base near the tamping hammer structure, and the equipment box is placed on both sides of that end of the plate base. Support plates are welded to both sides of the outer frame and at the bottom of the equipment box. One end of the support plate is welded and fixed to the plate base. The bottom of the equipment box is installed and fixed to the support plate at the corresponding position by bolts. Each set of support plates is equipped with a column that rotates through a bearing. The top of the column passes through the equipment box and is rotatably connected to the top of the equipment box through a bearing. The part of the column inside the equipment box is fitted with a first bevel gear through a key pin. The bottom end of the column is fitted with a bottom sleeve through a key pin. A scraper is welded to one side of the bottom sleeve.

[0013] Specifically, a second bevel gear that meshes with the first bevel gear is rotatably mounted on one side of the equipment box via a bearing. The shaft head on the back of the second bevel gear is connected to the shaft head at the center of the corresponding eccentric wheel via a coupling. The eccentric shaft on the other side of the eccentric wheel is equipped with a first connecting rod via a sealed bearing. A guide sleeve is installed on the top side of the equipment box near the first connecting rod. A second columnar connecting rod is inserted into the guide sleeve. The bottom end of the second columnar connecting rod is rotatably connected to the top end of the first connecting rod via a rotating shaft.

[0014] Specifically, a sliding column is integrally connected to the top side of the second column-type connecting rod. A groove is provided at the lower arm of the Y-shaped fork arm for the sliding column to pass through. The sliding column passes through the groove and is fitted with an annular limiting sleeve by a snap ring. The diameter of the annular limiting sleeve is larger than the width of the groove. During the earth-compacting operation, the reciprocating Y-shaped fork arm will push and lift the second column-type connecting rod back and forth, causing the second column-type connecting rod to move up and down within the guide sleeve. This provides pushing and pulling power to the first connecting rod and drives the eccentric wheel to rotate. The eccentric wheel transmits this selective power to the first bevel gear via the second bevel gear. The wheel rotates the column, causing the scraper at the bottom of the column to rotate as well. During the lifting of the Y-shaped fork arm, the scraper rotates to the area below the tamping block. During the lowering of the Y-shaped fork arm, the scraper rotates to the outer area of ​​the tamping block. When the tamping block rises, it makes way for the tamping position, and the scraper rotates to move underneath it. When the tamping block falls and is tamped, the scraper leaves the tamping position, realizing linkage with the lifting and lowering movement of the tamping block. Each operation of the scraper can push the excess soil and rock squeezed out by the tamping back into the tamping pit, providing a more flat working surface for the subsequent vibration compaction structure, eliminating the need for manual leveling and improving construction efficiency.

[0015] The beneficial effects of this invention are as follows: By setting up a soil return structure linked to the tamping hammer structure, the reciprocating lifting motion of the Y-shaped fork arm drives the scraper to rotate periodically. When the tamping block rises, the scraper rotates to the position below the tamping point; when the tamping block falls and tamps, the scraper leaves the tamping point. Each operation of the scraper can push the excess soil and rock squeezed out by tamping back into the tamping pit, providing a more flat working surface for the subsequent vibration and compaction structure, eliminating the need for manual leveling and improving construction efficiency. By simultaneously driving the tamping hammer structure and the hydraulic pump with a motor, a single power source can synchronously drive the tamping and vibration and compaction systems. The structure is compact, has high transmission efficiency, and low energy consumption. Furthermore, by setting up an outer frame, it is easy to hook and connect with towing equipment such as engineering vehicles, improving the mobility and applicability of the device. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is an overall diagram of the present invention; Figure 2 This is a column diagram of the present invention; Figure 3 This is a schematic diagram of the eccentric shaft of the present invention; Figure 4 For the present invention Figure 1 Enlarged view of point A in the middle; Figure 5 For the present invention Figure 1 Enlarged view of point B in the middle; In the diagram: 1. Plate base; 11. Enclosure; 12. Outer frame; 13. Support plate; 2. Rammer structure; 21. Side arm; 22. Lower shaft; 23. Upper shaft; 24. Large synchronous pulley; 241. Eccentric block; 25. Y-shaped fork arm; 251. Slide groove; 26. Rammer block; 27. First small synchronous pulley; 28. First middle synchronous pulley; 29. ​​Motor; 210. Second small synchronous pulley; 211. Third small synchronous pulley; 3. Vibration and pressing structure; 31. End plate; 311. Groove; 312. Shock absorber; 32. Pressure roller; 33. Hydraulic motor; 34. Eccentric shaft; 35. Oil tank; 36. Hydraulic pump; 361. Second intermediate synchronous pulley; 37. Diverter valve; 4. Backfill structure; 41. Equipment box; 42. Column; 43. Bottom sleeve; 44. Scraper; 45. First bevel gear; 46. Second bevel gear; 47. Eccentric wheel; 48. First connecting rod; 49. Second column-type connecting rod; 491. Sliding column; 492. Annular limit sleeve; 410. Guide sleeve. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0019] As one embodiment of the present invention, such as Figures 1 to 5 As shown, the earth-ramming device for earthwork construction according to the present invention includes a plate base 1. A retaining wall 11 is welded to the top of the plate base 1 to protect the components at the top of the plate base 1 and provide a certain degree of protection. A ramming hammer structure 2 is provided at the top of the front end of the plate base 1. Backfilling structures 4 connected to the ramming hammer structure 2 are respectively provided at the corners on both sides of the bottom of the ramming hammer structure 2 at the front end of the plate base 1. A vibration and pressure structure 3 is provided at the bottom of the plate base 1.

[0020] The tamping hammer structure 2 includes two sets of inclined side arms 21 and a set of tamping blocks 26. A lower shaft 22 is sleeved between the bottom ends of the two sets of side arms 21 via bearings. The two ends of the lower shaft 22 are fixed to the plate base 1 via bearing seats, allowing the lower shaft 22 to rotate freely relative to the plate base 1. An upper shaft 23 is rotatably mounted between the top ends of the two sets of side arms 21 via bearings. A large synchronous wheel 24 is mounted in the middle of the upper shaft 23 via a key pin. Eccentric blocks 241 are symmetrically fixed on both sides of the large synchronous wheel 24.

[0021] Y-shaped fork arms 25 are welded to the top and bottom of the two sets of side arms 21 respectively. The tamping block 26 is located at the bottom of the two sets of Y-shaped fork arms 25, and the top ends of the tamping block 26 are welded and fixed to the bottom ends of the corresponding Y-shaped fork arms 25. The tamping block 26 is a metal block with a certain weight and area, used for impact tamping of the road surface.

[0022] The ramming hammer structure 2 also includes a first small synchronous pulley 27 and a first medium synchronous pulley 28, which are respectively mounted on the lower shaft 22 via key pins. The first small synchronous pulley 27 is connected to the large synchronous pulley 24 via a synchronous belt.

[0023] A motor 29 is mounted on the top of the base plate 1. The motor 29 can be a diesel motor or a motor that requires external power. When a motor requiring external power is used, the base plate 1 needs to be equipped with a corresponding power supply component (such as a battery or generator) to power the motor. A second small synchronous pulley 210 and a third small synchronous pulley 211 are respectively mounted on the drive shaft of the motor 29, wherein the second small synchronous pulley 210 is connected to the first intermediate synchronous pulley 28 via a synchronous belt.

[0024] When motor 29 is running, it simultaneously drives the second small synchronous pulley 210 and the third small synchronous pulley 211 to rotate. The second small synchronous pulley 210 drives the first intermediate synchronous pulley 28 to rotate via a synchronous belt, which in turn drives the lower shaft 22 to rotate. The first small synchronous pulley 27 on the lower shaft 22 rotates accordingly, and drives the large synchronous pulley 24 to rotate via a synchronous belt. Since the large synchronous pulley 24 is equipped with a pair of eccentric blocks 241, each rotation of the large synchronous pulley 24 will generate an inertial force (i.e., centrifugal force) pulling the large synchronous pulley 24. This inertial force is transmitted to the side arm 21 through the upper shaft 23, causing the side arm 21 to drive the Y-shaped fork arm 25 to move up and down reciprocally with the lower shaft 22 as the axis. This causes the tamping block 26 to continuously move up and down to tamp the road surface of the route section, achieving the soil tamping effect.

[0025] The vibration compaction structure 3 is located behind the tamping hammer structure 2 (i.e., behind the tamping hammer structure 2 along the direction of travel of the device) and is used to further vibrate and compact the road surface after tamping. The vibration compaction structure 3 includes floating end plates 31 symmetrically arranged on both sides of the bottom of the plate base 1. A pressure roller 32 is rotatably mounted between the symmetrically arranged end plates 31 via bearings. The top of the end plates 31 and the bottom of the plate base 1 are both machined with corresponding grooves 311. A shock absorber 312 is arranged in the groove 311. The two ends of the shock absorber 312 are respectively fixed to the end plates 31 and the plate base 1 via flanges. The shock absorber 312 is preferably a rubber shock absorber or a spring shock absorber, used to absorb the impact force generated by the vibration of the pressure roller 32 and reduce the transmission of vibration to the plate base 1.

[0026] An eccentric shaft 34 is mounted inside the pressure roller 32 via bearings. One end of the eccentric shaft 34 extends through a corresponding end plate 31, and a hydraulic motor 33 is bolted to the outside of the end plate 31. The drive end of the hydraulic motor 33 is connected to the end of the eccentric shaft 34. When the hydraulic motor 33 drives the eccentric shaft 34 to rotate, the eccentric structure of the eccentric shaft 34 causes the pressure roller 32 to vibrate at high frequency.

[0027] The shock-absorbing structure 3 also includes an oil tank 35 installed on the top of the plate base 1. A hydraulic pump 36 and a flow divider valve 37 are installed on the top of the oil tank 35. The oil inlet of the hydraulic pump 36 is connected to the oil tank 35 through a pipe, and the output of the hydraulic pump 36 is connected to the inlet of the flow divider valve 37. The output of the flow divider valve 37 is connected to the oil inlet of the hydraulic motor 33 through a hose, and the return end of the hydraulic motor 33 is connected to the return end of the oil tank 35 through a hose.

[0028] A second intermediate synchronous pulley 361 is mounted on the input shaft of the hydraulic pump 36, and the second intermediate synchronous pulley 361 is connected to a third small synchronous pulley 211 via a synchronous belt. After the motor 29 starts running, the third small synchronous pulley 211 drives the second intermediate synchronous pulley 361 to rotate via the synchronous belt, thereby synchronously driving the hydraulic pump 36 to run. The hydraulic pump 36 delivers hydraulic oil from the oil tank 35 to the diversion valve 37, which diverts the hydraulic oil to each set of hydraulic motors 33, driving the hydraulic motors 33 to run. The hydraulic oil in the hydraulic motors 33 flows back to the oil tank 35 to form a circulation. During this process, the hydraulic motors 33 drive the eccentric shaft 34 to rotate, and the eccentric shaft 34 causes the pressure roller 32 to vibrate, compacting the road surface after tamping. The shock absorber 312 effectively reduces the transmission of vibration from the pressure roller 32 to the plate seat 1, ensuring the stability of the upper structure of the device.

[0029] An outer frame 12 is provided on the outer periphery of one end of the ramming structure 2, and the two ends of the outer frame 12 are welded and fixed to the two sides of the plate base 1. The outer frame 12 is used to hook and connect with external traction equipment (such as engineering vehicles or other vehicles or equipment with certain pulling force conditions) to facilitate the traction and movement of the whole device.

[0030] The backfill structure 4 includes an equipment box 41 and eccentric wheels 47. The eccentric wheels 47 are respectively located on the outer side of the equipment box 41, and the rotation shaft of the center of the eccentric wheel 47 is rotatably connected to the corresponding position of the equipment box 41 via a sealed bearing. The equipment box 41 is located on both sides of the plate base 1 near the end of the tamping hammer structure 2. Support plates 13 are welded to both sides of the outer frame 12 and located at the bottom of the equipment box 41. One end of the support plate 13 is welded and fixed to the plate base 1, and the bottom of the equipment box 41 is fixed to the corresponding position of the support plate 13 by bolts.

[0031] Each set of support plates 13 is rotatably mounted with a column 42 via bearings. The top of the column 42 passes through the equipment box 41 and is rotatably connected to the top of the equipment box 41 via bearings. The bottom of the column 42 is located at the bottom of the set of support plates 13. The part of the column 42 inside the equipment box 41 is fitted with a first bevel gear 45 via a key pin. The bottom end of the column 42 is fitted with a bottom sleeve 43 via a key pin. A scraper 44 is welded to one side of the bottom sleeve 43. The scraper 44 is used to push the excess soil and rock material squeezed out during the compaction process back into the compaction pit. The length and height of the scraper 44 are set according to actual needs.

[0032] Inside the equipment housing 41, a second bevel gear 46, meshing with the first bevel gear 45, is rotatably mounted on one side via a bearing. The shaft end on the back of the second bevel gear 46 is connected to the shaft end at the center of the corresponding eccentric wheel 47 via a coupling. On the other side of the eccentric wheel 47, an eccentric shaft is mounted with a first connecting rod 48 via a sealed bearing. A guide sleeve 410 is installed on the top side of the equipment housing 41 near the first connecting rod 48. A second columnar connecting rod 49 is inserted into the guide sleeve 410. The bottom end of the second columnar connecting rod 49 is rotatably connected to the top end of the first connecting rod 48 via a rotating shaft.

[0033] The top side of the second column-type connecting rod 49 is integrally connected to a sliding column 491. The lower arm of the Y-shaped fork arm 25 is provided with a sliding groove 251 through which the sliding column 491 passes. The sliding column 491 passes through the sliding groove 251 and is installed with an annular limiting sleeve 492 through a snap ring. The diameter of the annular limiting sleeve 492 is larger than the width of the sliding groove 251 to prevent the sliding column 491 from coming out of the sliding groove 251.

[0034] During the ramming operation, the reciprocating Y-shaped fork arm 25, through the cooperation of the sliding groove 251 and the sliding column 491, will reciprocate to push down and lift the second column-type connecting rod 49, causing the second column-type connecting rod 49 to move up and down reciprocally within the guide sleeve 410. The reciprocating motion of the second column-type connecting rod 49 drives the first connecting rod 48 to swing, and the first connecting rod 48 transmits the pushing and pulling power to the eccentric wheel 47, driving the eccentric wheel 47 to rotate. The eccentric wheel 47 transmits the rotational power to the first bevel gear 45 meshing with it through the second bevel gear 46, causing the column 42 to rotate, which in turn causes the scraper 44 at the bottom of the column 42 to rotate.

[0035] During the lifting of the Y-shaped fork arm 25 (i.e., when the tamping block 26 rises), the scraper 44 rotates to the area below the tamping block 26; during the lowering of the Y-shaped fork arm 25 (i.e., when the tamping block 26 descends for impact), the scraper 44 rotates to the area outside the tamping block 26. In other words: when the tamping block 26 rises, it makes way for the impact position, and the scraper 44 rotates to its underside; when the tamping block 26 descends for impact, the scraper 44 leaves the impact position. This achieves the linkage between the lifting and lowering movements of the scraper 44 and the tamping block 26. Each operation of the scraper 44 pushes the excess soil and rock squeezed out by the impact back into the impact pit, providing a more flat working surface for the subsequent vibration compaction structure 3, eliminating the need for manual leveling and improving construction efficiency.

[0036] In use, the device is connected to an external traction device (such as an engineering vehicle) via the outer frame 12, and the traction device drives the device along the construction route. The motor 29 is started, simultaneously driving the second small synchronous pulley 210 and the third small synchronous pulley 211 to rotate. The second small synchronous pulley 210, through a synchronous belt, the first intermediate synchronous pulley 28, the lower axle 22, the first small synchronous pulley 27, and the large synchronous pulley 24, causes the large synchronous pulley 24 to rotate. The eccentric block 241 on the large synchronous pulley 24 generates inertial force, driving the side arm 21 and the Y-shaped fork arm 25 to reciprocate up and down around the lower axle 22, causing the tamping block 26 to continuously impact and tamp the road surface. Simultaneously, the third small synchronous pulley 211 drives the hydraulic pump 36 via the synchronous belt. The hydraulic pump 36 delivers hydraulic oil from the oil tank 35 to the hydraulic motor 33 via the diverter valve 37, driving the hydraulic motor 33 to operate. Hydraulic motor 33 drives eccentric shaft 34 to rotate, causing high-frequency vibration of roller 32 to compact the road surface after tamping. During the operation of tamping hammer structure 2, the reciprocating lifting motion of Y-shaped fork arm 25, through the cooperation of slide groove 251 and slide column 491, drives second column connecting rod 49 to reciprocate within guide sleeve 410. This, in turn, through the transmission of first connecting rod 48, eccentric wheel 47, second bevel gear 46, and first bevel gear 45, causes column 42 to drive scraper 44 to rotate periodically. When tamping block 26 rises, scraper 44 rotates below the tamping position; when tamping block 26 falls for tamping, scraper 44 rotates out, pushing excess soil and rock squeezed out by tamping back into the tamping pit, achieving automatic backfilling and leveling. Thus, continuous integrated operation of tamping, backfilling and leveling, and vibratory compaction is achieved on the same device, improving the efficiency and quality of earthwork construction.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ramming device for earthwork construction, characterized in that, Includes a plate base (1), a fence (11) is welded around the top of the plate base (1), a tamping hammer structure (2) is set at the top of the front end of the plate base (1), a backfilling structure (4) connected to the tamping hammer structure (2) is set at the corners on both sides of the bottom of the tamping hammer structure (2) at the front end of the plate base (1), and a vibration pressure structure (3) is set at the bottom of the plate base (1).

2. The ramming device for earthwork construction according to claim 1, characterized in that, The ramming hammer structure (2) includes two sets of inclined side arms (21) and ramming blocks (26). The bottom ends of the two sets of side arms (21) are connected by a bearing and a lower shaft (22). The two ends of the lower shaft (22) are fixed to the plate seat (1) by bearing seats. The top ends of the two sets of side arms (21) are connected by a bearing and an upper shaft (23) is rotatably installed between the top ends of the two sets of side arms (21). A large synchronous wheel (24) is installed in the middle of the upper shaft (23) by a key pin. Eccentric blocks (241) are symmetrically fixed on both sides of the large synchronous wheel (24). Y-shaped fork arms (25) are welded to the top and bottom of the two sets of side arms (21), and the ramming block (26) is located at the bottom of the two sets of Y-shaped fork arms (25), and the top of both ends of the ramming block (26) is welded and fixed to the bottom of the corresponding Y-shaped fork arms (25).

3. A ramming device for earthwork construction according to claim 2, characterized in that, The ramming hammer structure (2) also includes a first small synchronous pulley (27) and a first medium synchronous pulley (28). The first small synchronous pulley (27) and the first medium synchronous pulley (28) are respectively mounted on the lower shaft (22) by key pins. The first small synchronous pulley (27) is connected to the large synchronous pulley (24) by a synchronous belt. A motor (29) is installed on the top of the plate base (1). A second small synchronous pulley (210) and a third small synchronous pulley (211) are respectively installed on the drive shaft of the motor (29). The second small synchronous pulley (210) is connected to the first medium synchronous pulley (28) through a synchronous belt.

4. A ramming device for earthwork construction according to claim 3, characterized in that, The shock-pressing structure (3) is located behind the ramming structure (2). The shock-pressing structure (3) includes floating end plates (31) symmetrically arranged on both sides of the bottom of the plate base (1). Pressure rollers (32) are rotatably installed between the symmetrically arranged end plates (31) through bearings. Grooves (311) are machined at corresponding positions on the top of the end plates (31) and the bottom of the plate base (1). Shock absorbers (312) are installed in the grooves (311). The two ends of the shock absorbers (312) are respectively installed and fixed to the end plates (31) and the plate base (1) through flanges. An eccentric shaft (34) is installed inside the pressure roller (32) via a bearing. The shaft head of one end of the eccentric shaft (34) passes through the corresponding end plate (31), and a hydraulic motor (33) is installed on the outside of the end plate (31) via bolts. The drive end of the hydraulic motor (33) is connected to the shaft head of one end of the eccentric shaft (34).

5. A ramming device for earthwork construction according to claim 4, characterized in that, The shock-absorbing structure (3) also includes an oil tank (35) installed on the top of the plate base (1). A hydraulic pump (36) and a diverter valve (37) are installed on the top of the oil tank (35). The oil inlet of the hydraulic pump (36) is connected to the oil tank (35) through a pipe. The output end of the hydraulic pump (36) is connected to the liquid inlet of the diverter valve (37). The output end of the diverter valve (37) is connected to the oil inlet of the hydraulic motor (33) through a hose. The return end of the hydraulic motor (33) is connected to the return end of the oil tank (35) through a hose. A second intermediate synchronous pulley (36) is mounted on the input shaft of the hydraulic pump (36), and the second intermediate synchronous pulley (36) is connected to the third small synchronous pulley (211) via a synchronous belt.

6. A ramming device for earthwork construction according to claim 5, characterized in that, The plate base (1) is provided with an outer frame (12) on the outer periphery of one end of the hammer structure (2), and the two ends of the outer frame (12) are welded and fixed to the two sides of the plate base (1).

7. A ramming device for earthwork construction according to claim 6, characterized in that, Each set of backfill structure (4) includes a set of equipment box (41), a set of scraper (44) and a set of eccentric wheel (47). The eccentric wheel (47) is located on the outside of the equipment box (41). The rotating shaft of the center of the eccentric wheel (47) is rotatably connected to the corresponding equipment box (41) through a sealed bearing. The equipment box (41) is located at one end of the plate base (1) near the tamping hammer structure (2), and the equipment box (41) is placed on both sides of the end of the plate base (1). The inner sides of the outer frame (12) and the bottom of the equipment box (41) are welded with support plates (13). One side of the end of the support plate (13) is welded and fixed to the plate base (1). The bottom of the equipment box (41) is installed and fixed to the support plate (13) at the corresponding position by bolts. Each set of support plates (13) is rotatably mounted with a column (42) via a bearing. The top of the column (42) passes through the equipment box (41) and is rotatably connected to the top of the equipment box (41) via a bearing. The part of the column (42) located inside the equipment box (41) is fitted with a first bevel gear (45) via a key pin. The bottom end of the column (42) is fitted with a bottom sleeve (43) via a key pin. A scraper (44) is welded to one side of the bottom sleeve (43).

8. A ramming device for earthwork construction according to claim 7, characterized in that, Inside the equipment box (41), a second bevel gear (46) is rotatably mounted on one side via a bearing and meshes with the first bevel gear (45). The shaft head on the back of the second bevel gear (46) is connected to the shaft head at the center of the corresponding eccentric wheel (47) via a coupling. The eccentric shaft on the other side of the eccentric wheel (47) is mounted with a first connecting rod (48) via a sealed bearing. A guide sleeve (410) is installed on the top side of the equipment box (41) near the first connecting rod (48). A second column connecting rod (49) is inserted into the guide sleeve (410). The bottom end of the second column connecting rod (49) is rotatably connected to the top end of the first connecting rod (48) via a rotating shaft.

9. A ramming device for earthwork construction according to claim 8, characterized in that, The top side of the second column-type connecting rod (49) is integrally connected with a sliding column (491). The lower arm of the Y-shaped fork arm (25) is provided with a sliding groove (251) for the sliding column (491) to pass through. The sliding column (491) passes through the sliding groove (251) and is installed with an annular limiting sleeve (492) by a snap ring. The diameter of the annular limiting sleeve (492) is greater than the width of the sliding groove (251).

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