CN221218405U

CN221218405U - Compaction device for highway subgrade

Info

Publication number: CN221218405U
Application number: CN202323195083.8U
Authority: CN
Inventors: 洪渊; 方俊杰; 沈兴承; 虞修华; 欧阳金芳; 楼之江; 刘泽
Original assignee: Zhejiang Communications Investment Group Co ltd; Hunan University of Science and Technology
Current assignee: Zhejiang Communications Investment Group Co ltd; Hunan University of Science and Technology
Priority date: 2023-11-27
Filing date: 2023-11-27
Publication date: 2024-06-25
Anticipated expiration: 2033-11-27

Abstract

The utility model discloses a compaction device for highway subgrade, which belongs to the technical field of road construction and comprises a carriage and a traction machine head, wherein the traction machine head is movably connected with one end of the carriage; through setting the impact wheel to the shape of luxuriant triangle, compare in current plum blossom impact mill, its working depth is close, but its working area is bigger, and is more balanced to the compaction effect of road bed, very big promotion to the work efficiency of road bed compaction, be favorable to improving the practicality of device.

Description

Compaction device for highway subgrade

Technical Field

The utility model relates to the technical field of road construction, in particular to a compaction device for a highway subgrade.

Background

The expressway is a highway specially used for the high-speed running of automobiles, provides a running space for multiple lanes, performs split-flow control on all entrances and exits, has important significance for improving traffic efficiency, and needs to perform compaction operation on roadbeds in the early construction process of the expressway so as to ensure the stability of the quality of the later period of the highway.

The current roadbed compaction means generally uses a road roller or a punching machine to compact roadbed, on some roadbeds with loose soil, the deep soil cannot be compacted due to the fact that the action depth of the road roller is shallower, the roadbed may be settled in the later stage, the working area of the existing dragging punching machine is smaller, the rolling of the punching wheel is not continuous, the compaction quality of the roadbed is uneven, and therefore the device for compacting the expressway roadbed is provided.

Disclosure of utility model

In order to overcome the defects of the prior art, the utility model provides the compaction device for the expressway subgrade, which has deeper compaction depth of the roadbed, larger working area and more balanced compaction quality of the roadbed, and is beneficial to improving the practicability of the device.

In order to solve the technical problems, the utility model provides the following technical scheme: the compaction device for the highway subgrade comprises a carriage and a traction machine head, wherein the traction machine head is movably connected with one end of the carriage, bearings are fixedly arranged on two sides of one end of the carriage, an installation shaft is coaxially and fixedly arranged on the bearings, impact wheels are coaxially and fixedly arranged on the installation shaft, and the cross section of each impact wheel is in a Lo triangle shape.

Preferably, a connecting mechanism connected with the tractor head is arranged at one end of the carriage, which is far away from the bearing.

Preferably, the connecting mechanism comprises a first connecting block hinged and fixed with the carriage, a second connecting block is hinged and fixed on the first connecting block, and a connecting bolt is arranged on the second connecting block in a penetrating manner.

Preferably, the impact wheel is internally provided with a centrifugal block, the impact wheel comprises a metal shell, a cavity is formed in the metal shell, and the centrifugal block is movably connected with the inner wall of the metal shell.

Preferably, the centrifugal block is triangular, the cross section of the centrifugal block is equilateral triangle, the cross section of the cavity is a Leno triangle, and the centrifugal block is matched with the cavity in size.

Preferably, sand is arranged between the centrifugal block and the inner wall of the metal shell.

Compared with the prior art, the utility model has the following beneficial effects:

1. Through setting the cross section of impact wheel to the lux triangle-shaped, its axle center motion orbit is the wave line, when rolling on ground, can produce impact force, tamp the road base, compare in plum blossom impact mill, lux triangle-shaped has similar working depth, and its working area is bigger, and the road bed quality of compaction is more balanced, is favorable to improving the practicality of device.

2. Through setting up the centrifugal piece in the impact wheel, when the impact wheel rotates, the motion of centrifugal piece can make the impact wheel vibrate to improve the compaction effect of impact wheel, and centrifugal piece and metal casing inner wall junction are equipped with the grit, and the centrifugal piece drives the grit motion, further enlarges the vibration of impact wheel, further improvement device's practicality.

Drawings

FIG. 1 is a schematic view showing the overall structure of a compacting apparatus for highway subgrade according to an embodiment;

FIG. 2 is an exploded view of the overall structure of a compaction apparatus for highway subgrade according to an embodiment;

FIG. 3 is a cross-sectional view showing the construction of an impact wheel of a compacting apparatus for highway subgrade according to an embodiment;

Wherein: 1. a carriage; 2. an impact wheel; 21. a metal housing; 22. a cavity; 23. sand stone; 3. a mounting shaft; 4. a bearing; 5. a first connection block; 6. a second connection block; 7. a connecting bolt; 8. the block was centrifuged.

Detailed Description

The technical scheme of the utility model is described below by means of specific examples with reference to the accompanying drawings 1-3.

Examples:

As shown in fig. 1-3, the compacting device for the highway subgrade provided by the utility model comprises a carriage 1, wherein bearings 4 are fixedly arranged on two sides of one end of the carriage 1, a mounting shaft 3 is coaxially and fixedly arranged in the bearings 4, an impact wheel 2 is fixedly arranged on the mounting shaft 3, a connecting mechanism connected with a tractor head is arranged at one end, far away from the bearings 4, of the carriage 1, the connecting mechanism comprises a first connecting block 5 hinged and fixed on the carriage 1, a second connecting block 6 is hinged and fixed on the first connecting block 5, a connecting bolt 7 penetrates through the second connecting block 6, and a centrifugal block 8 is arranged in the impact wheel 2.

The impact wheel 2 comprises a metal shell 21, a cavity 22 is formed in the metal shell 21, a centrifugal block 8 is located in the cavity 22, the centrifugal block 8 is movably connected with the inner wall of the metal shell 21, the centrifugal block 8 is triangular, and the cross section of the centrifugal block 8 is equilateral triangle.

The cross sections of the impact wheel 2 and the cavity 22 are of a Lerlo triangle shape, the centrifugal block 8 is matched with the cavity 22 in size, and sand and stones 23 are arranged between the centrifugal block 8 and the inner wall of the metal shell 21.

The working steps are as follows: firstly, after the device is assembled, the device is connected with a traction machine head by using a connecting bolt 7, when the machine head dragging device moves, the impact wheel 2 rolls along with the traction of the machine head to compact a road base, in the rolling process of the impact wheel 2, the centrifugal block 8 can generate certain rotation, sand and stone 23 between the centrifugal block 8 and the inner wall of the metal shell 21 are stirred to move, the sand and stone 23 falls under the action of gravity, a certain impact force is caused, and the road base is tamped.

Working principle: the impact wheel 2 is driven to rotate by the traction machine head, the cross section of the impact wheel 2 is a Lo triangle, the rolling axle center moving path of the impact wheel 2 is wave-shaped, namely, in the rolling process of the impact wheel 2, the axle center of the impact wheel 2 can move up and down to generate impact force, the road base is tamped, the Lo triangle is compared with the existing plum blossom impact roller, the impact wheel also has compaction effect when in impact, the compaction of the roadbed is more uniform, the single working range is larger, the centrifugal block 8 can shake when the impact wheel 2 rolls, the position of sand and stone 23 is changed, the sand and stone 23 shakes in the cavity 22 to drive the impact wheel 2 to vibrate integrally so as to enlarge the impact force of the impact wheel 2, the tamping effect of the impact wheel 2 is guaranteed, the device is connected with the traction machine head through the first connecting block 5 and the second connecting block 6, the machine head can drive the pulling plate 1 and the impact wheel 2 to steer when the machine head is in comparison with the existing plum blossom impact roller, and the practicability of the device is improved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a compaction device of highway subgrade, includes planker (1), traction head with planker (1) one end swing joint, its characterized in that: the novel power tool is characterized in that bearings (4) are fixedly mounted on two sides of one end of the carriage (1), a mounting shaft (3) is coaxially and fixedly mounted on the bearings (4), an impact wheel (2) is coaxially and fixedly mounted on the mounting shaft (3), and the cross section of the impact wheel (2) is in a Lorlo triangle shape.

2. A highway subgrade compacting apparatus as defined in claim 1, wherein: one end of the carriage (1) far away from the bearing (4) is provided with a connecting mechanism connected with the tractor head.

3. A highway subgrade compacting apparatus as set forth in claim 2, wherein: the connecting mechanism comprises a first connecting block (5) hinged and fixed with the carriage (1), a second connecting block (6) is hinged and fixed on the first connecting block (5), and a connecting bolt (7) is arranged on the second connecting block (6) in a penetrating mode.

4. A highway subgrade compacting apparatus as defined in claim 1, wherein: the impact wheel (2) is internally provided with a centrifugal block (8), the impact wheel (2) comprises a metal shell (21), a cavity (22) is formed in the metal shell (21), and the centrifugal block (8) is movably connected with the inner wall of the metal shell (21).

5. A highway subgrade compacting apparatus as set forth in claim 4, wherein: the centrifugal block (8) is triangular, the cross section of the centrifugal block is equilateral triangle, the cross section of the cavity (22) is of a Lorentz triangle, and the centrifugal block (8) is matched with the cavity (22) in size.

6. A highway subgrade compacting apparatus as set forth in claim 5, wherein: sand and stones (23) are arranged between the centrifugal blocks (8) and the inner wall of the metal shell (21).