Frog type tamping machine for engineering
The frog-type rammer, with its modular structure and multiple shock-absorbing design, enables flexible adjustment of the rammer range and force, solving the problems of insufficient adaptability and control precision of existing equipment, and improving construction efficiency and safety.
Patent Information
- Application Number
- CN202610029697.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-10
- Publication Date
- 2026-02-13
AI Technical Summary
The existing frog-type tamping machine has a fixed tamping range and tamping force, which makes it difficult to adapt to different construction scenarios; the shock-absorbing design is rudimentary, which makes the equipment easy to damage and lacks control precision, posing safety hazards.
The modular structure design allows for bidirectional adjustment of the tamping range and tamping force. Combined with multiple anti-vibration buffer structures and precise control structures, the equipment's adaptability and control precision are improved through the connection of the pressure plate and extension plate, the adjustment of the counterweight block of the eccentric head, the buffer components of the spring cavity and anti-vibration plate, and the control design of the rotating groove and control handle.
It improves the equipment's adaptability to different construction scenarios, reduces construction costs and operational difficulties, extends equipment lifespan, enhances construction quality and safety, and reduces safety hazards.
Smart Images
Figure CN121519482A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to compaction equipment technology, and more particularly to a frog-type rammer for engineering applications. Background Technology
[0002] Frog-type rammers, commonly used compaction equipment in construction, are widely applied in foundation, roadbed, and site leveling operations. They compact the working surface through the vibration force generated by their eccentric structure, playing a crucial role in improving the stability of construction foundations. However, existing frog-type rammers still face many unresolved issues in practical applications, making it difficult to meet the needs of diverse construction scenarios.
[0003] Existing frog-type rammers typically have fixed tamping range and tamping force settings, resulting in extremely poor adaptability. When compacting large areas, equipment with a fixed range requires multiple reciprocating operations, leading to low efficiency. Conversely, for narrow construction areas or precise compaction needs, specialized smaller equipment is required, increasing construction costs and extending the construction period. Furthermore, the soil hardness varies significantly across different work surfaces, and rammers with fixed tamping forces cannot flexibly adapt to different conditions such as loose soil and hard foundations, easily leading to insufficient compaction or over-compaction that damages the work surface.
[0004] Furthermore, the existing equipment suffers from a rudimentary shock-absorbing structure design. The significant vibrations generated during operation are directly transmitted to the chassis, motor, transmission components, and other core parts. Prolonged use can lead to loosening and wear of these components, shortening the equipment's lifespan. The vibration-induced shaking can also cause uneven compaction, affecting construction quality. In terms of operability, the existing equipment lacks precise directional adjustment, easily leading to deviations during operation. This not only increases the skill burden on operators but also poses safety hazards such as collision damage or construction deviations, failing to guarantee the safety and reliability of the construction process. Therefore, developing a frog-type rammer with bidirectional adjustment, shock resistance, stability, and precise control has become an urgent need in the industry. Summary of the Invention
[0005] Purpose of the invention: The purpose of this invention is to achieve bidirectional adjustment of the tamping range and tamping force through modular structural design, so as to improve the adaptability of the equipment to different construction scenarios, reduce construction costs and operational difficulty. Another purpose of this invention is to improve operational stability and control accuracy through the synergistic cooperation of multiple anti-seismic buffer structures and precision control structures, ensure tamping quality, extend equipment service life, and reduce safety hazards.
[0006] Technical solution: An engineering frog-type rammer includes a chassis, a support frame fixedly connected to the upper surface of the chassis, a motor fixedly connected to the upper surface of the support frame, vertical plates symmetrically fixedly connected to the right side of the upper surface of the chassis, ring-shaped fixing blocks symmetrically fixedly connected to the upper surface of the vertical plates, a rotating column rotatably connected inside the ring-shaped fixing blocks, a rammer frame rotatably connected to the outer wall of the rotating column, a transmission wheel rotatably connected to the upper surface of the rammer frame, and an eccentric head fixedly connected to the outer wall of the transmission wheel.
[0007] Furthermore, the output end of the motor is fixedly connected to a pulley one, the rear end of the rotating column is fixedly connected to a pulley two, and the outer wall of the rotating column, located inside the tamping frame, is fixedly connected to a pulley three. The outer walls of the pulley one and the pulley two are together wound with a transmission belt one, and the outer walls of the pulley three and the transmission wheel are together wound with a transmission belt two.
[0008] Furthermore, the outer wall of the eccentric head is symmetrically provided with grooves, and each groove is fitted with a counterweight block with holes. Each groove is also provided with threaded locking holes, and each threaded locking hole is threaded with a threaded rod. A pressure plate is fixedly connected to the lower surface of the tamping frame, and an extension plate is rotatably connected to the rear surface of the pressure plate. A through-hole is provided on the front surface of the pressure plate, and the through-hole extends to the rear surface of the extension plate. A locking bolt is threaded into the through-hole.
[0009] Furthermore, the upper surface of the chassis is symmetrically and fixedly connected with a spring cavity, a disc is slidably connected inside the spring cavity, a cylinder is fixedly connected to the lower surface of the disc, and an anti-vibration plate is fixedly connected to the bottom end of the cylinder. Springs are fixedly connected between the upper surface of the disc and the upper surface of the inner cavity.
[0010] Furthermore, a storage box is fixedly connected to the upper surface of the chassis, and a card plate is placed inside the storage box. A card rod is fixedly connected to the left side of the front surface of the card plate, and a swivel is opened on the right side of the front surface of the card plate. A slotted screw is rotatably connected inside the swivel, and a threaded post is fixedly connected to the front surface of the slotted screw.
[0011] Furthermore, the upper surface of the chassis has symmetrically fixedly connected rotating grooves on the left side, and a control handle is rotatably connected inside the rotating grooves. The outer wall of the control handle has a slot, and a spring signal switch is elastically connected inside the slot. The front end of the spring signal switch is fixedly connected to a contact plate.
[0012] Beneficial Effects: The frog-type tamping machine used in this project, through its modular structural design, achieves flexible two-way adjustment of tamping range and tamping force, significantly improving the equipment's adaptability to different construction scenarios and effectively reducing construction costs and operational difficulty. Regarding tamping range adjustment, the equipment utilizes a rotating connection structure between the pressure plate and extension plate, combined with a locking bolt and threaded fixing design, allowing for easy unfolding and folding of the extension plate. In the unfolded state, it expands the working coverage area, improving the compaction efficiency of large areas; in the folded state, the tamping range is reduced through the cooperation of the internal clamping plate, clamping rod, and threaded column, adapting to the needs of narrow construction areas or precise compaction points. Regarding tamping force adjustment, the groove on the outer wall of the eccentric head and the engaging structure of the perforated counterweight, combined with the limiting and fixing design of the threaded clamping hole and threaded rod, allow operators to quickly adjust the overall weight of the eccentric head by adding or removing counterweights, thereby changing the magnitude of the eccentric force and achieving graded adjustment of tamping force. This two-way adjustment function allows the equipment to adapt to the compaction needs of different hardness surfaces such as soft soil and hard foundation, without the need to replace with special equipment, which significantly improves the versatility of construction, while simplifying the adjustment operation process and reducing the skill requirements of operators. Through the coordinated design of multiple anti-vibration buffers and a precise control structure, the equipment not only significantly improves stability and control accuracy during operation, ensuring compaction quality, but also effectively extends equipment lifespan and reduces safety hazards. Regarding anti-vibration buffering, the cushioning assembly, composed of symmetrically arranged spring cavities, discs, cylinders, anti-vibration plates, and springs on the chassis, forms a highly efficient vibration absorption system: when the equipment vibrates during operation, the springs quickly absorb vibration energy through their own expansion and contraction deformation, while simultaneously driving the discs to slide within the spring cavities. The cushioning force is then transferred to the anti-vibration plate through the cylinders, effectively reducing the impact of vibration on the chassis and core components such as the motor and transmission components. This prevents components from loosening, wearing, or being damaged due to long-term vibration, extending the equipment's lifespan. At the same time, the reduced vibration makes the equipment operate more smoothly, reducing uneven compaction caused by equipment shaking during the compaction process and improving construction quality. In terms of operational safety, the rotating connection design between the rotary slot and the control handle allows operators to flexibly adjust the equipment's movement direction and work trajectory. Combined with the spring-loaded signal switch and the bonding disc structure within the slot on the outer wall of the control handle, the elastic force of the spring-loaded signal switch pushes the bonding disc to tightly fit with relevant components, achieving auxiliary positioning during operation and preventing directional deviation, thus improving operational precision. Simultaneously, this precise control design reduces the risk of equipment deviation during operation, minimizing safety hazards such as collision damage or construction deviations, and ensuring the safety and reliability of the construction process. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the storage box of the present invention; Figure 3 This is a schematic diagram of the structure of the pressure plate of the present invention; Figure 4 This is a schematic diagram of the overall structure of the control handle of the present invention; Figure 5 This is an exploded view of the projectile cavity of the present invention; Figure 6 This is a schematic diagram of the overall structure of the eccentric head of the present invention.
[0014] In the diagram: 1. Chassis; 2. Support frame; 3. Motor; 4. Vertical plate; 5. Ring-type fixing block; 6. Rotating column; 7. Ramming frame; 8. Transmission wheel; 9. Eccentric head; 10. Groove; 11. Counterweight with hole; 12. Threaded rod; 13. Extension plate; 14. Through thread; 15. Locking bolt; 16. Spring cavity; 17. Disc; 18. Cylinder; 19. Anti-vibration plate; 20. Spring; 21. Storage box; 22. Clamping plate; 23. Clamping rod; 24. Flathead screw; 25. Threaded column; 26. Rotating groove; 27. Control handle; 28. Clamping slot; 29. Spring signal switch; 30. Adhesive plate; 31. Belt pulley one; 32. Belt pulley two; 33. Belt pulley three; 34. Transmission belt one; 35. Transmission belt two; 36. Threaded clamping hole; 37. Pressure plate; 38. Rotary opening. Detailed Implementation
[0015] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0016] Example like Figures 1-6As shown, an engineering frog-type rammer includes a chassis 1. A support frame 2 is fixedly connected to the upper surface of the chassis 1. A motor 3 is fixedly connected to the upper surface of the support frame 2. Vertical plates 4 are symmetrically fixedly connected to the right side of the upper surface of the chassis 1. Ring-shaped fixing blocks 5 are symmetrically fixedly connected to the upper surface of the vertical plates 4. A rotating column 6 is rotatably connected inside the ring-shaped fixing blocks 5. A rammer frame 7 is rotatably connected to the outer wall of the rotating column 6. A transmission wheel 8 is rotatably connected to the upper surface of the rammer frame 7. An eccentric head 9 is fixedly connected to the outer wall of the transmission wheel 8. A belt is fixedly connected to the output end of the motor 3. Wheel 1 (31) and wheel 2 (32) are fixedly connected to the rear end of the rotating column 6. Wheel 3 (33) is fixedly connected to the outer wall of the rotating column 6 inside the tamping frame 7. Drive belt 1 (34) is wound around the outer walls of wheel 1 (31) and wheel 2 (32). Drive belt 2 (35) is wound around the outer wall of wheel 3 (33) and wheel 8. Grooves 10 are symmetrically opened on the outer wall of the eccentric head 9. A counterweight 11 with a hole is engaged inside each groove 10. Threaded holes 36 are opened inside each groove 10. Threaded connections are made inside each threaded hole 36. A threaded rod 12 is provided. A pressure plate 37 is fixedly connected to the lower surface of the tamping frame 7. An extension plate 13 is rotatably connected to the rear surface of the pressure plate 37. A through thread 14 is provided on the front surface of the pressure plate 37, extending to the rear surface of the extension plate 13. A locking bolt 15 is threaded inside the through thread 14. A spring cavity 16 is symmetrically fixedly connected to the upper surface of the chassis 1. A disc 17 is slidably connected inside the spring cavity 16. A cylinder 18 is fixedly connected to the lower surface of the disc 17. A shock-absorbing plate 19 is fixedly connected to the bottom end of the cylinder 18. Springs 20 are fixedly connected between the upper surface of the 7 and the inner upper surface of the cavity 16. A storage box 21 is fixedly connected to the upper surface of the chassis 1. A card plate 22 is placed inside the storage box 21. A card lever 23 is fixedly connected to the left side of the front surface of the card plate 22. A rotating opening 38 is opened on the right side of the front surface of the card plate 22. A slotted screw 24 is rotatably connected inside the rotating opening 38. A threaded post 25 is fixedly connected to the front surface of the slotted screw 24. Rotary grooves 26 are symmetrically fixedly connected to the left side of the upper surface of the chassis 1. A control handle 27 is rotatably connected inside the rotating groove 26. A slot 28 is opened on the outer wall of the control handle 27. A spring signal switch 29 is elastically connected inside the slot 28. A contact plate 30 is fixedly connected to the front end of the spring signal switch 29. After starting the motor 3 of the engineering frog-type rammer, the output end of the motor 3 will drive the pulley 31, which is fixedly connected to it, to rotate synchronously. Since the outer wall of the pulley 31 and the pulley 32, which is fixedly connected to the rear end of the rotating column 6, is wound with the transmission belt 34, the rotational power of the pulley 31 will be smoothly transmitted to the pulley 32 under the transmission action of the transmission belt 34, thereby driving the rotating column 6, which is fixedly connected to the pulley 32, to rotate as a whole. The rotation of the rotating column 6 relies on the ring fixing blocks 5 symmetrically fixedly connected to the upper surface of the vertical plate 4. The ring fixing blocks 5 provide stable rotational support for the rotating column 6, ensuring that the rotating column 6 will not deviate during rotation. When the rotating column 6 starts to rotate, the pulley 33, which is located inside the rammer frame 7 on its outer wall, will rotate with the rotating column 6. This is because the pulley 33 and the rammer frame... The outer wall of the transmission wheel 8, which is rotatably connected to the upper surface of 7, is wound with a second transmission belt 35. Under the power transmission of the second transmission belt 35, the rotation of the pulley 33 will drive the transmission wheel 8 to rotate synchronously. The eccentric head 9, which is fixedly connected to the outer wall of the transmission wheel 8, will also make a circular motion with the rotation of the transmission wheel 8. The entire power transmission process is continuous and stable, ensuring that the power can be efficiently transmitted to the eccentric head 9. When the eccentric head 9 makes a circular motion, due to the characteristics of its eccentric structure, it will generate a periodic eccentric force. This force will drive the tamping frame 7 to swing back and forth around the rotating column 6. The back and forth swing of the tamping frame 7 will directly drive the pressure plate 37, which is fixedly connected to its lower surface, to move synchronously. The extension plate 13, which is rotatably connected to the rear surface of the pressure plate 37, will also move up and down with the pressure plate 37, thereby realizing the tamping operation on the working surface. If the tamping range needs to be adjusted, the locking bolt 15 connected to the internal thread of the through screw hole 14 can be loosened to adjust the angle of the extension plate 13 relative to the pressure plate 37. After the extension plate 13 and the pressure plate 37 are folded, the card plate 22 in the storage box 21 can be taken out, and the threaded post 25 and the card rod 23 can be respectively engaged with the through screw hole 14 on the outside of the extension plate 13 and the pressure plate 37. This will allow the extension plate 13 and the pressure plate 37 to be folded, reducing the tamping range. The outer wall of the eccentric head 9 has symmetrical grooves 10. The perforated counterweight 11 is precisely engaged with the groove 10 through its own hole, ensuring that the perforated counterweight 11 is in the eccentric head 9. The screw rod 12 will not fall off during rotation. The threaded locking hole 36 inside the groove 10 provides the mounting base for the threaded rod 12. After screwing the threaded rod 12 into the threaded locking hole 36, the threaded rod 12 will limit and fix the perforated counterweight 11, preventing it from shifting. When it is necessary to adjust the tamping force, the number of perforated counterweights 11 engaged in the groove 10 can be increased or decreased by disassembling the threaded rod 12, and then the threaded rod 12 can be reinstalled to complete the fixation. This allows for flexible adjustment of the tamping force to adapt to different hardness working surfaces. During the entire tamping operation of the tamper, the symmetrically fixed and connected spring cavity 16 on the upper surface of the chassis 1 will play a role. The key function of buffering and shock absorption is achieved through the sliding connection of the disc 17 inside the cavity 16, which can slide freely up and down within the cavity 16. A cylinder 18, fixedly connected to the lower surface of the disc 17, firmly connects the disc 17 to the shock-absorbing plate 19 as a whole. Meanwhile, the spring 20, fixedly connected between the upper surface of the disc 17 and the upper surface inside the cavity 16, is in a naturally extended / retracted state. When the rammer vibrates, the vibration is transmitted to the cavity 16. At this time, the spring 20 absorbs the vibration energy through its own extension and contraction, simultaneously causing the disc 17 to slide up and down within the cavity 16. This, in turn, drives the shock-absorbing plate 19 to move synchronously via the cylinder 18, effectively weakening the vibration. The impact of vibration on chassis 1 and the overall structure of the machine is minimized, ensuring the stability of the rammer during operation. The symmetrically fixed rotating groove 26 on the left side of the upper surface of chassis 1 provides a rotating mounting base for the control handle 27. The control handle 27 can rotate flexibly within the rotating groove 26, allowing the operator to precisely control the movement direction and working trajectory of the rammer by rotating the control handle 27. During operation, the elastically connected spring signal switch 29 in the slot 28 on the outer wall of the control handle 27 will push the fitting plate 30 to fit with the relevant components through its own elastic force, achieving auxiliary positioning during operation and ensuring the accuracy of the control direction.
[0017] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.
Claims
1. A frog-type rammer for engineering use, comprising a chassis (1), characterized in that: A support frame (2) is fixedly connected to the upper surface of the chassis (1), and a motor (3) is fixedly connected to the upper surface of the support frame (2). A vertical plate (4) is symmetrically fixedly connected to the right side of the upper surface of the chassis (1). A ring-shaped fixing block (5) is symmetrically fixedly connected to the upper surface of the vertical plate (4). A rotating column (6) is rotatably connected inside the ring-shaped fixing block (5). A tamping frame (7) is rotatably connected to the outer wall of the rotating column (6). A transmission wheel (8) is rotatably connected to the upper surface of the tamping frame (7). An eccentric head (9) is fixedly connected to the outer wall of the transmission wheel (8).
2. The frog-type rammer for engineering use according to claim 1, characterized in that: The output end of the motor (3) is fixedly connected to a pulley 1 (31), the rear end of the rotating column (6) is fixedly connected to a pulley 2 (32), the outer wall of the rotating column (6) is fixedly connected to a pulley 3 (33) inside the tamping frame (7), the outer walls of the pulley 1 (31) and the pulley 2 (32) are together wound with a transmission belt 1 (34), and the outer walls of the pulley 3 (33) and the transmission wheel (8) are together wound with a transmission belt 2 (35).
3. The frog-type rammer for engineering use according to claim 1, characterized in that: The outer side wall of the eccentric head (9) is symmetrically provided with grooves (10), and each groove (10) is fitted with a counterweight (11) with a hole. Each groove (10) is provided with a threaded locking hole (36), and each threaded locking hole (36) is threaded with a threaded rod (12). The lower surface of the tamping frame (7) is fixedly connected with a pressure plate (37), and the rear surface of the pressure plate (37) is rotatably connected with an extension plate (13). The front surface of the pressure plate (37) is provided with a through screw (14), which extends to the rear surface of the extension plate (13). The inside of the through screw (14) is threaded with a locking bolt (15).
4. The frog-type rammer for engineering use according to claim 1, characterized in that: The upper surface of the chassis (1) is symmetrically and fixedly connected to a spring cavity (16). A disc (17) is slidably connected inside the spring cavity (16). A cylinder (18) is fixedly connected to the lower surface of the disc (17). A shock-absorbing plate (19) is fixedly connected to the bottom end of the cylinder (18). A spring (20) is fixedly connected between the upper surface of the disc (17) and the upper surface of the inner interior of the spring cavity (16).
5. The frog-type rammer for engineering use according to claim 1, characterized in that: A storage box (21) is fixedly connected to the upper surface of the chassis (1). A card plate (22) is placed inside the storage box (21). A card rod (23) is fixedly connected to the left side of the front surface of the card plate (22). A rotating opening (38) is opened on the right side of the front surface of the card plate (22). A slotted screw (24) is rotatably connected inside the rotating opening (38). A threaded post (25) is fixedly connected to the front surface of the slotted screw (24).
6. The frog-type rammer for engineering use according to claim 1, characterized in that: A rotating groove (26) is symmetrically fixedly connected to the left side of the upper surface of the chassis (1). A control handle (27) is rotatably connected inside the rotating groove (26). A slot (28) is opened on the outer side wall of the control handle (27). A spring signal switch (29) is elastically connected inside the slot (28). A fitting plate (30) is fixedly connected to the front end of the spring signal switch (29).