CN221218405U - A compacting device for highway roadbed - Google Patents

Abstract

The utility model discloses a compacting device for a highway roadbed, which belongs to the technical field of road construction and comprises a carriage and a traction machine head. The traction machine head is movably connected to one end of the carriage, bearings are fixed on both sides of one end of the carriage, a mounting shaft is fixedly mounted on the bearing, an impact wheel is mounted on the mounting shaft, and the cross section of the impact wheel is a Reuleaux triangle. By setting the impact wheel to the shape of a Reuleaux triangle, compared with an existing plum blossom impact roller, its working depth is similar, but its working area is larger, and the compacting effect on the roadbed is more balanced, which greatly improves the working efficiency of compacting the roadbed and is conducive to improving the practicability of the device.

Description

A compacting device for highway roadbed

Technical Field

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

Background technique

Expressways are roads designed for high-speed driving of cars. They provide multi-lane driving space in opposite directions and have diversion control for all entrances and exits. Expressways are of great significance to improving traffic efficiency. During the early construction of expressways, the roadbed needs to be compacted to ensure the stability of the highway's quality in the later stages.

The current means of roadbed compaction is generally to use a roller or a punch to compact the roadbed. On some roadbeds with relatively soft soil, the roller has a shallow working depth and cannot compact the deep soil. The roadbed may settle in the later stage. The existing towed punch has a small working area and the rolling of the punch wheel is not continuous, so the compaction quality of the roadbed is uneven. Therefore, a compaction device for highway roadbed is proposed.

Utility Model Content

In order to overcome the deficiencies of the prior art, the utility model provides a compacting device for a highway roadbed, which has a deeper compacting depth for the roadbed, a larger working area, and a more balanced compacting quality for the roadbed, thereby helping to improve the practicability of the device.

In order to solve the above technical problems, the utility model provides the following technical solutions: a compaction device for a highway roadbed, comprising a carriage and a traction head, the traction head being movably connected to one end of the carriage, bearings being fixedly installed on both sides of one end of the carriage, a mounting shaft being coaxially fixedly installed on the bearing, an impact wheel being coaxially fixedly installed on the mounting shaft, and the cross-section of the impact wheel being a Leroy triangle.

Preferably, a connecting mechanism connected to the traction machine head is installed at one end of the carriage away from the bearing.

Preferably, the connection mechanism comprises a first connection block hingedly fixed to the drag plate, a second connection block is hingedly fixed to the first connection block, and a connection bolt is passed through the second connection block.

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

Preferably, the centrifugal block is in the shape of a triangular prism, and its cross section is an equilateral triangle, the cross section of the cavity is a Reuleaux triangle, and the centrifugal block is matched with the size of the cavity.

Preferably, sand and gravel are provided between the centrifugal block and the inner wall of the metal shell.

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

1. By setting the cross section of the impact wheel to a Reuleaux triangle, the axial motion trajectory is a wavy line. When rolling on the ground, it will generate impact force to compact the roadbed. Compared with the plum blossom impact roller, the Reuleaux triangle has a similar working depth and a larger working area. The quality of the compacted roadbed is more balanced, which is conducive to improving the practicality of the device.

2. By setting the centrifugal block in the impact wheel, when the impact wheel rotates, the movement of the centrifugal block will make the impact wheel vibrate, thereby improving the compaction effect of the impact wheel, and sand and gravel are provided at the connection between the centrifugal block and the inner wall of the metal shell. The centrifugal block drives the movement of the sand and gravel, further amplifies the vibration of the impact wheel, and further improves the practicality of the device.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of a compaction device for a highway roadbed in an embodiment;

FIG2 is an exploded view of the overall structure of a compaction device for a highway roadbed in an embodiment;

FIG3 is a cross-sectional view of an impact wheel structure of a compaction device for a highway roadbed in an embodiment;

Among them: 1. drag plate; 2. impact wheel; 21. metal shell; 22. cavity; 23. sand and gravel; 3. mounting shaft; 4. bearing; 5. first connecting block; 6. second connecting block; 7. connecting bolt; 8. centrifugal block.

Detailed ways

The technical solution of the present utility model is described below by means of specific embodiments in conjunction with Figures 1 to 3 of the specification.

Embodiment:

As shown in Figures 1-3, the utility model provides a compaction device for a highway roadbed, including a carriage 1, bearings 4 are fixedly installed on both sides of one end of the carriage 1, a mounting shaft 3 is coaxially fixedly installed in the bearing 4, an impact wheel 2 is fixedly installed on the mounting shaft 3, and a connecting mechanism connected to a traction head is installed at the end of the carriage 1 away from the bearing 4, the connecting mechanism includes a first connecting block 5 hingedly fixed to the carriage 1, a second connecting block 6 is hingedly fixed on the first connecting block 5, a connecting bolt 7 is passed through the second connecting block 6, and a centrifugal block 8 is provided in the impact wheel 2.

The impact wheel 2 includes a metal shell 21, a cavity 22 is defined in the metal shell 21, a centrifugal block 8 is located in the cavity 22, and the centrifugal block 8 is movably connected to the inner wall of the metal shell 21. The centrifugal block 8 is in the shape of a triangular prism, and its cross section is an equilateral triangle.

The cross-sections of the impact wheel 2 and the cavity 22 are both Reuleaux triangles. The centrifugal block 8 and the cavity 22 are matched in size. Sand and gravel 23 are provided between the centrifugal block 8 and the inner wall of the metal shell 21.

Working steps: First, assemble the device, use the connecting bolts 7 to connect the device to the towing machine head, and the machine head drags the device to move. During the movement, the impact wheel 2 rolls with the traction of the machine head to compact the roadbed. During the rolling of the impact wheel 2, the centrifugal block 8 will produce a certain rotation, stirring the sand and gravel 23 between the centrifugal block 8 and the inner wall of the metal shell 21 to move. The sand and gravel 23 falls under the action of gravity, causing a certain impact force to compact the roadbed.

Working principle: the impact wheel 2 is driven to rotate by the traction head. Since the cross-section of the impact wheel 2 is a Leroy triangle, the moving path of the axis of its rolling is wavy, that is, during the rolling process of the impact wheel 2, the axis of the impact wheel 2 will move up and down, thereby generating an impact force to compact the roadbed. Compared with the existing plum blossom impact roller, the Leroy triangle has a compaction effect while impacting, and the compaction of the roadbed is more uniform, and the single working range is larger. The centrifugal block 8 will also shake when the impact wheel 2 rolls, changing the position of the sand and gravel 23, causing the sand and gravel 23 to shake in the cavity 22, driving the impact wheel 2 to vibrate as a whole, so as to expand the impact force of the impact wheel 2 and ensure the compaction effect of the impact wheel 2. The device is connected to the traction head through the first connecting block 5 and the second connecting block 6. The first connecting block 5 allows the carriage 1 to swing up and down relative to the head, and the second connecting block 6 allows the head to drive the carriage 1 and the impact wheel 2 to turn, which is conducive to improving the practicality of the device.

Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

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).