Earth and stone tamping device

By designing an automatic lifting hammer earth and rock compaction device, the problem of cumbersome operation of traditional compaction machines has been solved, achieving efficient construction and convenient transportation. It is suitable for foundation treatment and earth and rock backfilling in building engineering.

CN223793570UActive Publication Date: 2026-01-13SHAANXI LIJINGTUZHI CONSTRUCTION ENGINEERING CO LTD
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Patent Information

Application Number
CN202520106330.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-16
Publication Date
2026-01-13
Estimated Expiration
2035-01-16

AI Technical Summary

Technical Problem

Traditional earthmoving compactors are cumbersome to operate, labor-intensive, have low construction efficiency, and are inconvenient to transport and store.

Method used

An earthwork compaction device was designed, comprising a tractor, a front frame, a hammer, and a drive unit. The automatic lifting and lowering of the hammer is achieved by the cooperation of the drive roller and the hook. Combined with the roller-type compaction section and dust suppression and cleaning components, the operation process is simplified and the transportation convenience is improved.

Benefits of technology

The automated compaction process reduces the labor intensity of operators, improves construction efficiency, and facilitates the transportation and storage of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an earthwork punning device, including tractor, front frame, driving hammer and drive unit, said front frame is provided in the front end of tractor, on the front frame is provided with two parallel vertical slide rail, the driving hammer is inlayed on the two vertical slide rail in sliding mode, and the driving unit is provided with the driving hammer. The driving unit comprises two chain wheels arranged on the front frame, a chain wound on the chain wheels, a driving roller arranged on the outer side of the chain and a driving motor in transmission connection with one of the chain wheels, the chain is parallel to the vertical sliding rail, and a hooking part is arranged on one side of the driving hammer; the hooking part is positioned on a running path of the driving roller; according to the device, the driving roller is matched with the driving hammer hooking part, automatic lifting of the driving hammer is achieved, the tractor can drive the rammer compactor to advance or retreat on a relatively flat foundation, an operator does not need to control the rammer compactor body in the whole process, and the operation process is remarkably simplified.
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Description

Technical Field

[0001] This utility model relates to the field of earthwork construction technology, and in particular to an earthwork compaction device. Background Technology

[0002] In construction engineering, foundation treatment and backfilling are crucial steps to ensure the stability and safety of buildings. Compaction is a vital process for ensuring the density of the foundation and backfill soil and rock layers, directly impacting the quality and durability of the building. Traditional small compactors, whether vertical or frog-type, typically require manual control throughout the entire process, which not only increases labor intensity but also limits construction efficiency. Furthermore, the modular design of these traditional compactors often makes transportation and storage extremely inconvenient, increasing construction complexity and costs.

[0003] Therefore, the market urgently needs a simple and easy-to-operate earthwork compaction device. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the technical problem of this utility model is to provide an earth and rock compaction device with simple structure and convenient operation.

[0005] An earthmoving compaction device includes a tractor, a front frame, a hammer, and a drive unit. The front frame is located at the front end of the tractor and has two parallel vertical slide rails. The hammer is slidably mounted on the two vertical slide rails. The drive unit includes two sprockets on the front frame, a chain wound around the sprockets, a drive roller located outside the chain, and a drive motor connected to one of the sprockets. The chain is parallel to the vertical slide rails. A hook is located on one side of the hammer, on the path of the drive roller. The drive roller drives the hook to lift the hammer along the vertical slide rails. When the drive roller travels with the chain to the highest point, it disengages from the hook, and the hammer falls freely.

[0006] To further explain, the hammer and the hook are connected by a screw. One side of the hammer has two horizontally protruding vertical ribs, and multiple threaded holes are evenly opened on the two vertical ribs. The hook is provided with a slotted hole that matches the threaded hole, and the screw passes through the slotted hole and connects to the threaded hole.

[0007] To further explain, the hammer includes a hammer body and a hammer head, and the hammer head and hammer body are detachably connected by a screw.

[0008] To further explain, the drive roller includes a mounting plate fixedly connected to the outside of the chain, a fixed roller disposed on the mounting plate, and an outer sleeve rotatably sleeved on the fixed roller.

[0009] To further explain, at least two drive rollers are provided, and each drive roller is distributed at equal intervals on the chain.

[0010] To further explain, the rear end of the tractor is equipped with a roller-type compaction section.

[0011] To further explain, the vehicle frame is also equipped with a dust suppression and cleaning component, which includes a pressure tank and a uniformly distributed nozzle connected to the pressure tank via a telescopic tube. The nozzle is adjustablely mounted on the bottom of the vehicle frame via two lugs, and the height and spray direction of the nozzle are adjustable.

[0012] The beneficial effects of this utility model are as follows: This device realizes the automatic lifting and lowering of the hammer through the cooperation of the drive roller and the hammer hook part. On a relatively flat foundation, the tractor can drive the compactor to move forward or backward without the need for the operator to control the machine throughout the process, which significantly simplifies the operation process.

[0013] In addition, the vertical slide rails on the front frame and the embedded design of the hammer make the device compact, easy to transport and store. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a schematic diagram of the hammer, drive unit, and hook of this utility model.

[0016] Figure 3 This is an enlarged view of the drive roller of this utility model.

[0017] Figure 4 This is a partial structural schematic diagram of the present invention.

[0018] The markings in the attached diagram are as follows: 1: Tractor, 2: Front frame, 21: Vertical slide rail, 3: Hammer, 31: Hammer body, 32: Hammer head, 4: Drive unit, 41: Sprocket, 42: Chain, 43: Drive roller, 431: Mounting plate, 432: Fixed roller, 433: Outer ring, 44: Drive motor, 5: Hook, 51: Screw, 52: Threaded hole, 6: Slotted hole, 7: Roller-type compaction part, 8: Dust suppression and cleaning component, 81: Pressure tank, 82: Nozzle, 83: Ear plate. Detailed Implementation

[0019] The present invention will now be described more fully below with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. However, the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the invention to those skilled in the art.

[0020] like Figure 1 and Figure 2 The earthwork compaction device shown includes a tractor 1, which consists of a frame, power system, wheels, and steering control system. A front frame 2 is provided at the front end of the tractor 1. Two parallel vertical slide rails 21 are provided on the front frame 2. A hammer 3 is slidably mounted on the two vertical slide rails 21. The device also includes a drive unit 4 for driving the hammer 3. The drive unit 4 includes two sprockets 41 mounted on the front frame 2. The two sprockets 41 are set at different heights. A chain 42 is wound around the sprockets 41. A drive roller 43 is fixed to the outside of the chain 42. One of the sprockets 41 is connected to a drive motor 44. The drive motor 44 is mounted on the tractor 1 or the front frame 2. The chain 42 is parallel to the vertical slide rails 21. As the drive motor 44 starts, it drives the chain 42 through the sprocket 41. The drive roller 43 connected to the chain 42 runs synchronously with the chain 42. A hook part 5 is provided on one side of the hammer 3. The hook part 5 is located on the running path of the drive roller 43. As the drive roller 43 runs, it will drive the hammer 3 to rise along the vertical slide rail 21 through the hook part 5. In addition, it should be noted that the highest point of the sprocket 41 is lower than the highest point of the vertical slide rail 21. When the drive roller 43 runs with the chain 42 to pass the highest point, that is, when the drive roller 43 runs with the chain 42 from one side to the other side, the drive roller 43 will disengage from the hook part 5. At this time, the hammer 3 will fall freely along the vertical slide rail 21.

[0021] like Figure 2 As shown, in a preferred embodiment, the hammer 3 and the hook part 5 are connected by a screw 51. The hammer 3 has two horizontally protruding vertical ribs on one side, and multiple threaded holes 52 are evenly opened on the two vertical ribs. The hook part 5 has a slotted hole 6 that matches the threaded hole 52. The screw 51 passes through the slotted hole 6 and connects to the threaded hole 52. The installation height of the hook part 5 on the hammer 3 is adjustable, which can change the maximum height of the hammer 3 and thus control the downward force. In addition, the hammer 3 is composed of a hammer body 31 and a hammer head 32. The hammer head 32 and the hammer body 31 are detachably connected by a screw 51. Different weights or different shapes of hammer heads 32 can be used to adapt to different construction environments.

[0022] like Figure 3 As shown, in one specific embodiment, the drive roller 43 includes a mounting plate 431, a fixed roller 432, and an outer sleeve 433. The mounting plate 431 is fixed to the outside of the chain 42, the fixed roller 432 is horizontally disposed on the mounting plate 431, and the outer sleeve 433 is rotatably fitted onto the fixed roller 432. This structure reduces friction between the drive roller 43 and the hook portion 5, making the separation smoother. It should be noted that in this embodiment, at least two drive rollers 43 are provided, and each drive roller 43 is arranged at equal intervals on the chain 42.

[0023] like Figure 4 As shown, this device also includes a roller compactor 7, which is located at the rear bottom of the tractor 1. The roller compactor 7 can further strengthen and level the part compacted by the hammer 3. In addition, the tractor 1 is also equipped with a dust suppression and cleaning component 8, which includes a pressure tank 81 and a uniformly distributed nozzle 82 connected to the pressure tank 81 through a telescopic tube. The nozzle 82 is adjustablely mounted on the bottom of the frame through two ear plates 83, and the height and spray direction of the nozzle 82 are adjustable. The dust suppression and cleaning component 8 can reduce the dust raised when the hammer 3 hits the ground by spraying, and can also wash the roller compactor 7.

[0024] This device has a simple and compact structure. By mounting the hammer 3 on the tractor 1, its stability is greatly enhanced. The modular and detachable hammer 3 greatly improves the convenience of transportation and storage, as well as its adaptability to different environments. Finally, the roller compactor 7 not only strengthens the compaction of the foundation, but also increases the stability of the device itself. The dust suppression and cleaning component 8 can suppress dust and clean the roller compactor 7. This device is more suitable for use on relatively flat foundations, so that even if the operator does not need to operate it throughout the process, the device can operate relatively stably.

[0025] The embodiments described above are merely preferred embodiments 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, improvements, and substitutions without departing from the inventive concept, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. An earthwork compaction device, characterized in that: The system includes a tractor (1), a front frame (2), a hammer (3), and a drive unit (4). The front frame (2) is located at the front end of the tractor (1). The front frame (2) has two parallel vertical slide rails (21). The hammer (3) is slidably mounted on the two vertical slide rails (21). The drive unit (4) includes two sprockets (41) mounted on the front frame (2), a chain (42) wound around the sprockets (41), a drive roller (43) located outside the chain (42), and a drive roller (43) connected to the chain. A drive motor (44) is connected to a sprocket (41). The chain (42) is parallel to the vertical slide rail (21). A hook (5) is provided on one side of the hammer (3). The hook (5) is located on the running path of the drive roller (43). The drive roller (43) drives the hook (5) to lift the hammer (3) up along the vertical slide rail (21). When the drive roller (43) runs with the chain (42) to the highest point, the drive roller (43) disengages from the hook (5), and the hammer (3) falls freely.

2. The earthwork compaction device according to claim 1, characterized in that: The hammer (3) and the hook (5) are connected by a screw (51). The hammer (3) has two horizontally protruding vertical ribs on one side. Multiple threaded holes (52) are evenly opened on the two vertical ribs. The hook (5) has a slotted hole (6) that matches the threaded hole (52). The screw (51) passes through the slotted hole (6) and connects to the threaded hole (52).

3. The earthwork compaction device according to claim 2, characterized in that: The hammer (3) includes a hammer body (31) and a hammer head (32), and the hammer head (32) and the hammer body (31) are detachably connected by a screw.

4. The earthwork compaction device according to claim 1, characterized in that: The drive roller (43) includes a mounting plate (431) fixedly connected to the outside of the chain (42), a fixed roller (432) disposed on the mounting plate (431), and an outer sleeve (433) rotatably sleeved on the fixed roller (432).

5. The earthwork compaction device according to claim 4, characterized in that: At least two drive rollers (43) are provided, and each drive roller (43) is distributed at equal intervals on the chain (42).

6. The earthwork compaction device according to claim 5, characterized in that: The rear end of the tractor (1) is provided with a roller-type compaction part (7).

7. The earthwork compaction device according to claim 6, characterized in that: The tractor (1) is also equipped with a dust suppression and cleaning component (8). The dust suppression and cleaning component (8) includes a pressure tank (81) and a uniformly distributed nozzle (82) connected to the pressure tank (81) through a telescopic pipe. The nozzle (82) is installed at the bottom of the tractor (1) in an adjustable manner through two ear plates (83). The height and spray direction of the nozzle (82) are adjustable.