Dynamic compaction machine

Abstract

The utility model relates to the technical field of engineering machinery, in particular to a dynamic compaction machine which comprises a machine body and an arm frame, the arm frame is provided with a rammer used for compacting the ground and a guide assembly used for guiding the rammer, and the guide assembly comprises a fixing plate fixedly connected to the lower side of the top end of the arm frame. Limiting plates are fixedly connected to the four ends of the lower surface of the fixing plate correspondingly, and sliding grooves are formed in the side walls of the opposite sides of the limiting plates correspondingly. Through cooperative arrangement of the fixing plate, the limiting plates, the sliding grooves and other structures, in the using process, a rammer is moved to the top end of the arm frame to be connected, the four limiting blocks on the rammer are located in the sliding grooves correspondingly, and therefore the rammer is moved to the top end of the arm frame; when the rammer freely falls from the arm frame, the limiting block slides in the sliding groove so that the rammer can be guided, the rammer can fall in a vertical state, the ground is uniformly tamped, and the problem that the rammer possibly inclines under the condition of free falling, and consequently the ground is tamped unevenly is avoided as much as possible.

Description

Technical Field

[0001] This application relates to the technical field of construction machinery, and particularly relates to a dynamic compactor. Background Art

[0002] A dynamic compactor is a machine used to compact loose soil during the construction process. During construction, the rammer is first hoisted high and then released, causing the rammer to strike into the soil for compaction.

[0003] The utility model patent with the publication number CN210766725U proposes a dynamic compactor, which includes a machine body, an operation room, a rammer, and a boom. The boom is fixedly connected with gantries located on both sides of the rammer, and brackets close to the ground are arranged on the gantries; a protective net for preventing sand and gravel from splashing out is arranged above the brackets on the gantries, a protective plate for preventing ground sand and gravel from splashing everywhere is slidably connected to the brackets, an insertion plate for inserting into the ground is arranged at the lower end of the protective plate, and a moving component for ensuring stable movement is arranged between the protective plate and the brackets; a fixed rod that swings vertically is hinged on the protective plate, and a fixing component for ensuring the firm fixation of the protective plate is arranged between the fixed rod and the brackets.

[0004] For the above-mentioned dynamic compactor, the rammer is moved to a certain height and then released through a hook release device, so that the rammer freely falls to compact the ground. However, the rammer may tilt during free fall, resulting in uneven compaction of the ground. Utility Model Content

[0005] The purpose of the present utility model is to solve or at least alleviate the problem that in an existing dynamic compactor, the rammer is moved to a certain height and then released through a hook release device, so that the rammer freely falls to compact the ground. However, the rammer may tilt during free fall, resulting in uneven compaction of the ground.

[0006] To achieve the above purpose, the present utility model adopts the following technical solutions:

[0007] A dynamic compactor includes a machine body and a boom. A rammer for compacting the ground and a guiding component for guiding the rammer are arranged on the boom. The guiding component includes a fixing plate fixedly connected to the lower side of the top end of the boom. Four ends of the lower surface of the fixing plate are fixedly connected with limiting plates. Sliding grooves are opened on the side walls opposite to each other of each limiting plate. Limiting blocks are fixedly connected to the four side walls of the rammer, and the limiting blocks are all slidably arranged in the sliding grooves.

[0008] By adopting the above technical solution, when in use, the rammer is moved to the top of the arm for connection, so that the four limit blocks on the rammer are respectively located in the slide groove. When the rammer falls freely from the arm, the limit blocks slide in the slide groove to guide the rammer, so that the rammer can fall vertically and compact the ground evenly, thus avoiding as much as possible the problem of uneven compaction of the ground due to tilting that may occur in the case of free fall.

[0009] Optionally, an annular baffle is provided below the limiting plate, and the annular baffle is fixedly connected to the bottom end of a side wall of each limiting plate via a connecting piece.

[0010] By adopting the above technical solution, the flying stones generated when the rammer impacts the ground can be blocked by the annular baffle, thereby reducing safety hazards.

[0011] Optionally, an annular groove is formed at the bottom end of the annular baffle, and an extension plate is provided at the bottom end of the annular baffle, and the extension plate is slidably disposed in the annular groove.

[0012] By adopting the above technical solution, when the rammer compacts the ground through the extension plate and the ground drops, the extension plate will slide downward in the annular groove and fit with the ground to prevent objects such as dirt or stones from splashing out from the gap between the annular baffle and the ground.

[0013] Optionally, through grooves are provided on both sides of the annular baffle, and fixing rods are fixedly connected to the top ends of both sides of the extension plate, and the fixing rods are slidably disposed in the through grooves.

[0014] By adopting the above technical solution, the fixing rod and the through groove can prevent the extension plate from falling off from the annular groove and being disconnected from the annular baffle.

[0015] Optionally, the connecting member includes a plurality of fixing bolts arranged on one side of the annular baffle, and the fixing bolts all penetrate the annular baffle and are respectively threadedly connected to the limiting plates.

[0016] By adopting the above technical solution, the annular baffle can be removed from the limit plate by rotating the fixing bolts, which is convenient for maintenance and replacement.

[0017] Optionally, a plurality of gravity blocks are arranged on the upper surface of the machine body.

[0018] By adopting the above technical solution, the weight of the machine body can be increased by placing gravity blocks, thereby improving the stability of the machine body.

[0019] Optionally, a rotating disk is fixedly connected to the upper surface of the rammer.

[0020] By adopting the above technical solution, when the rammer is lifted, the rammer can be conveniently rotated by the rotating disc, so that the four limiting blocks on the rammer slide into the chute.

[0021] In summary, the beneficial effects of the present application are as follows:

[0022] 1. Through the cooperation of structures such as the fixed plate, the limiting plate and the chute, when in use, the rammer is moved to the top of the boom for connection, so that the four limiting blocks on the rammer are respectively located in the chute. When the rammer free-falls from the boom, the limiting blocks slide in the chute to guide the rammer, so that the rammer can fall in a vertical state and compact the ground evenly, and as much as possible to avoid the problem of inclination that may occur in the case of free fall, resulting in uneven compaction of the ground;

[0023] 2. Through the annular baffle and the extension plate, when the rammer compacts the ground and the ground drops, the extension plate will slide down in the annular groove and fit with the ground to prevent items such as soil or stones from splashing out from the gap between the annular baffle and the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic plan view of the present utility model;

[0025] Figure 2 is an exploded structural schematic view of the guiding assembly of the present utility model;

[0026] Figure 3 is of the present utility model Figure 1 is an enlarged structural schematic view of area A in

[0027] Explanation of the reference numerals: 1, body; 2, boom; 3, rammer; 4, fixed plate; 5, limiting plate; 6, chute; 7, limiting block; 8, annular baffle; 9, annular groove; 10, extension plate; 11, through groove; 12, fixed rod; 13, fixing bolt; 14, gravity block; 15, rotating disc. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following further elaborates on the present application in conjunction with the attached Figures 1-3 drawings for a more detailed description.

[0029] Please refer to Figures 1-3, A dynamic compactor, comprising a machine body 1 and a boom 2. A rammer 3 for compacting the ground and a guiding assembly for guiding the rammer 3 are provided on the boom 2. In the prior art, a steel wire rope hanging the rammer 3 and a hook release are provided on the boom 2. The steel wire rope is fixedly connected to the hook release. The staff controls the rammer 3 to move upward. When the rammer 3 moves to a certain height, the hook release releases the rammer 3, and the rammer 3 falls freely to achieve the effect of compacting the ground. After the effect of compacting the ground is completed, the guiding assembly includes a fixing plate 4 fixedly connected to the lower side of the top end of the boom 2. Four ends of the lower surface of the fixing plate 4 are fixedly connected with vertically arranged limiting plates 5. A sliding groove 6 for guiding is opened on the side wall of each opposite side of the limiting plate 5. The upper and lower ends of the sliding groove 6 are open. Limiting blocks 7 are fixedly connected to the four side walls of the rammer 3, and the limiting blocks 7 are all slidably arranged in the sliding groove 6.

[0030] During use, the rammer 3 is moved to the top end of the boom 2 for connection, so that the four limiting blocks 7 on the rammer 3 are respectively located in the sliding grooves 6. When the rammer 3 falls freely from the boom 2, the limiting blocks 7 slide in the sliding grooves 6 to guide the rammer 3, so that the rammer 3 can fall in a vertical state and evenly compact the ground, and as much as possible avoid the problem that it may tilt in the case of free fall, resulting in uneven compaction of the ground.

[0031] Refer to Figure 2 and Figure 3 , A circular baffle 8 is provided below the limiting plate 5. The circular baffle 8 is fixedly connected to the bottom end of the side wall of each limiting plate 5 through a connecting piece. The circular baffle 8 can block the flying stones generated when the rammer 3 impacts the ground, reducing potential safety hazards.

[0032] Refer to Figure 1 and Figure 3 , A circular groove 9 is opened at the bottom end of the circular baffle 8. An extension plate 10 is provided at the bottom end of the circular baffle 8. The extension plate 10 is slidably arranged in the circular groove 9. Through the extension plate 10, when the rammer 3 compacts the ground and the ground drops, the extension plate 10 will slide downward in the circular groove 9 and fit with the ground to prevent items such as soil or stones from splashing out from the gap between the circular baffle 8 and the ground.

[0033] Refer to Figure 2 , Through grooves 11 are opened on both sides of the circular baffle 8. Fixing rods 12 are fixedly connected to the top ends of both sides of the extension plate 10. The fixing rods 12 are all slidably arranged in the through grooves 11. Through the fixing rods 12 and the through grooves 11, it is possible to prevent the extension plate 10 from falling off the circular groove 9 and disconnecting from the circular baffle 8.

[0034] Refer to Figure 3The connecting parts include a plurality of fixing bolts 13 arranged on one side of the annular baffle 8. The fixing bolts 13 all penetrate the annular baffle 8 and are respectively threadedly connected to the limit plate 5. The annular baffle 8 can be removed from the limit plate 5 by rotating the fixing bolts 13, which is convenient for maintenance and replacement.

[0035] Reference Figure 1 A plurality of gravity blocks 14 are arranged on the upper surface of the machine body 1. By placing the gravity blocks 14, the weight of the machine body 1 can be increased to improve the stability of the machine body 1.

[0036] Reference Figure 2 A rotating disk 15 is fixedly connected to the upper surface of the rammer 3. When the rammer 3 is raised, the rammer 3 can be rotated conveniently through the rotating disk 15, so that the four limit blocks 7 on the rammer 3 slide into the slide groove 6.

[0037] The implementation principle of the present application is: when in use, the rammer 3 is moved to the top end of the arm 2 for connection, so that the four limit blocks 7 on the rammer 3 are respectively located in the slide groove 6. When the rammer 3 falls freely from the arm 2, the limit blocks 7 slide in the slide groove 6 to guide the rammer 3, so that the rammer 3 can fall in a vertical state and compact the ground evenly, thereby avoiding the problem of uneven compaction of the ground due to tilting that may occur in the case of free fall as much as possible.

[0038] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A dynamic compactor, comprising a machine body (1) and a boom (2), wherein a rammer (3) for compacting the ground and a guiding assembly for guiding the rammer (3) are provided on the boom (2), and it is characterized in that: The guiding assembly includes a fixing plate (4) fixedly connected to the lower side of the top end of the boom (2). At the four ends of the lower surface of the fixing plate (4), limiting plates (5) are fixedly connected. On the opposite side walls of each limiting plate (5), sliding grooves (6) are formed. On the four side walls of the rammer (3), limiting blocks (7) are fixedly connected, and the limiting blocks (7) are all slidably arranged in the sliding grooves (6).

2. The dynamic compactor according to claim 1, characterized in that: Below the limiting plates (5), an annular baffle (8) is provided, and the annular baffle (8) is fixedly connected to the bottom end of one side wall of each limiting plate (5) through a connecting member.

3. The dynamic compactor according to claim 2, characterized in that: An annular groove (9) is formed at the bottom end of the annular baffle (8). An extension plate (10) is provided at the bottom end of the annular baffle (8), and the extension plate (10) is slidably arranged in the annular groove (9).

4. A dynamic compactor according to claim 3, characterized in that: Through grooves (11) are formed on both sides of the annular baffle (8). Fixed rods (12) are fixedly connected to the top ends of both sides of the extension plate (10), and the fixed rods (12) are all slidably arranged in the through grooves (11).

5. The dynamic compactor according to claim 4, characterized in that: The connecting member includes a plurality of fixing bolts (13) arranged on one side of the annular baffle (8). The fixing bolts (13) all penetrate through the annular baffle (8) and are respectively threadedly connected to the limiting plates (5).

6. A dynamic compactor according to claim 5, characterized in that: A plurality of gravity blocks (14) are arranged on the upper surface of the machine body (1).

7. A dynamic compactor according to claim 6, characterized in that: A rotating disc (15) is fixedly connected to the upper surface of the rammer (3).

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