CN210561637U

CN210561637U - Asphalt concrete milling machine

Info

Publication number: CN210561637U
Application number: CN201921423134.9U
Authority: CN
Inventors: 王及逢; 张邓; 吴孔明; 肖茜
Original assignee: China Construction Seventh Engineering Division Corp Ltd
Current assignee: China Construction Seventh Engineering Division Corp Ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-05-19
Anticipated expiration: 2029-08-29

Abstract

The utility model relates to an asphalt concrete milling machine, which effectively solves the problems of large dust and inconvenient milling depth adjustment when the milling machine works; the technical scheme for solving the problem is that the milling and planing device comprises a shell with a downward opening, wherein a plurality of groups of milling and planing tools are arranged side by side on the left and right in the shell, and each group of milling and planing tools consists of a plurality of independent blades which are sequentially stacked together from front to back; the multiple groups of milling and planing cutters rotate simultaneously; movable plates which can move up and down and reset downwards are arranged on the front inner side wall, the rear inner side wall, the left inner side wall and the right inner side wall of the shell, and a brush is arranged on the lower end face of each movable plate; both sides are equipped with the fixed block around the casing, and equal movable cartridge has the guide arm in every fixed block, and the gyro wheel is installed to the lower extreme of guide arm, and equal threaded connection has the ejector pin on every fixed block, and the ejector pin can promote the guide arm downwards, the utility model discloses be convenient for adjust the degree of depth of milling and planing, avoided the stone to splash and the excessive loss of dust.

Description

Asphalt concrete milling machine

Technical Field

The utility model relates to a road surface engineering machine tool field, especially an asphalt concrete milling machine.

Background

At present, a small milling machine is used for water-proofing treatment and roughening of the surface of a bridge deck; the method comprises the following steps of (1) carrying out milling and removing on the positions of asphalt pavement bumps, tracks, net cracks and pits; slightly galling the original old pavement before the asphalt concrete is newly paved; removing floor coatings, paints, various traffic markings, and the like. For different working conditions, the milling force and depth are different; for example, when the marked lines are removed, the depth is required to be reduced as much as possible to protect the road surface; then, when the roughening is carried out, the depth needs to be increased, so that the subsequent asphalt is conveniently paved; meanwhile, when the milling machine is used, huge dust can be generated due to the high-speed rotation of the blades, and the health of construction workers is seriously influenced; the above problems are therefore currently being continuously solved.

Disclosure of Invention

To the above circumstances, for solving the problem that exists among the prior art, the utility model aims at providing an asphalt concrete milling machine, it is big to effectively solve the milling machine during operation dust, mills the inconvenient problem of plane depth control.

The technical scheme for solving the problem is that the milling and planing device comprises a shell with a downward opening, wherein a plurality of groups of milling and planing tools are arranged side by side on the left and right in the shell, and each group of milling and planing tools consists of a plurality of independent blades which are sequentially stacked together from front to back; the multiple groups of milling and planing cutters rotate simultaneously; movable plates which can move up and down and reset downwards are arranged on the front inner side wall, the rear inner side wall, the left inner side wall and the right inner side wall of the shell, and a brush is arranged on the lower end face of each movable plate; the front side and the rear side of the shell are provided with fixed blocks, a guide rod is movably inserted in each fixed block, the lower end of each guide rod is provided with a roller, each fixed block is connected with a push rod in a threaded manner, and the push rods can push the guide rods downwards.

The utility model discloses be convenient for adjust the degree of depth of milling and planing, avoided the stone to splash and the excessive loss of dust.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a front sectional view of the present invention.

Fig. 3 is a top view of the housing and four movable plates engaged.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in fig. 1 to 3, the utility model comprises a shell 1 with a downward opening, a plurality of milling and planing tools 2 are arranged side by side at the left and right sides in the shell 1, and each milling and planing tool 2 is composed of a plurality of independent blades which are sequentially stacked together from front to back; the multiple groups of milling and planing tools 2 rotate simultaneously; movable plates 3 which can move up and down and reset downwards are mounted on the front, rear, left and right inner side walls of the shell 1, and a brush 4 is mounted on the lower end face of each movable plate 3; fixed blocks 5 are arranged on the front side and the rear side of the shell 1, a guide rod 6 is movably inserted in each fixed block 5, a roller 7 is installed at the lower end of each guide rod 6, a push rod 8 is connected to each fixed block 5 in a threaded manner, and the push rod 8 can push the guide rods 6 downwards.

In order to realize the co-rotation of the multiple groups of milling and planing tools 2, a motor 9 is arranged above the shell 1, and the motor 9 drives the multiple groups of milling and planing tools 2 to co-rotate through a belt and a belt pulley.

In order to realize the up-and-down movement and downward resetting of the movable plates 3, each movable plate 3 is provided with a plurality of through grooves 10, a positioning rod 11 arranged in the through groove 10 is fixed on the side wall of the shell 1, and a pressure spring 12 is connected between the through groove 10 and the positioning rod 11.

In order to facilitate pushing, the right side of the shell 1 is provided with a handrail.

When the utility model is used, firstly, according to the requirement of the working condition, the height of the shell 1, namely the height of the milling and planing tool 2 from the ground is reasonably adjusted, and when the height is adjusted, the upper end of the mandril 8 can be quickly and conveniently adjusted by rotating the spanner; because the guide rod 6 is movably inserted into the fixed block 5, the ejector rod 8 can push the guide rod 6 and the roller 7 to move downwards after moving downwards, so that the shell 1 is lifted upwards, and the distance between the milling and planing tool 2 and the ground is increased; and vice versa.

In the process of adjusting the height of the shell 1, the movable plate 3 can move up and down and reset downwards due to the cooperation of the movable plate 3 through the through groove 10, the positioning rod 11 and the pressure spring 12, so that when the shell 1 moves up and down or descends, the movable plate 3 can automatically adjust along with the movable plate, and the brush 4 on the lower end surface of the movable plate 3 can be always in contact with the ground; and through the cooperation of four brushes 4 and the movable plate 3, a relatively closed environment can be formed, so that the dust is blocked in the shell 1.

When the milling machine is used specifically, after the motor 9 is started, workers push the milling machine to walk, and milling and planning the ground quickly under the action of the milling and planning cutter 2; at the in-process of milling and planing, a large amount of dust that can produce, at this moment under the effect of fly leaf 3 and brush 4 all around, can limit most dust in the inside of casing 1, avoided a large amount of losses of dust.

Meanwhile, in the walking process, the brush 4 and the movable plate 3 can automatically lift according to the fluctuation of the road surface, so that the brush can be always attached to the ground.

The device installs the roller 7 through the front and the rear fixed blocks 5, and realizes the adjustment of the supporting height of the roller 7 through the mandril 8 in threaded connection, thereby realizing the adjustment of the distance between the milling cutter 2 and the ground; the milling depth can be conveniently adjusted.

The device realizes the relative sealing of the interior of the shell 1 by arranging the brush 4 on the lower end surface of the movable plate 3 through the four movable plates 3 capable of automatically moving up and down, and can prevent stones from splashing on one hand; on the other hand, the dissipation of dust can be greatly reduced; meanwhile, the movable plate 3 can be self-adaptively adjusted in height, and can be adapted to pavements with different heights.

The utility model discloses convenient operation, the structure is ingenious, low cost, and it is convenient to make, and is safe effective, is convenient for adjust the degree of depth of milling and planing, has avoided the stone to splash and the excessive loss of dust.

Claims

1. The asphalt concrete milling machine comprises a shell (1) with a downward opening, and is characterized in that a plurality of groups of milling and planing tools (2) are arranged side by side on the left and right in the shell (1), and each group of milling and planing tools (2) consists of a plurality of independent blades which are sequentially stacked together from front to back; the multiple groups of milling and planing cutters (2) rotate simultaneously; movable plates (3) which can move up and down and reset downwards are respectively arranged on the front inner side wall, the rear inner side wall, the left inner side wall and the right inner side wall of the shell (1), and a brush (4) is arranged on the lower end face of each movable plate (3); fixed blocks (5) are arranged on the front side and the rear side of the shell (1), guide rods (6) are movably inserted in each fixed block (5), rollers (7) are installed at the lower ends of the guide rods (6), ejector rods (8) are connected to each fixed block (5) in a threaded mode, and the ejector rods (8) can push the guide rods (6) downwards.

2. The asphalt concrete milling machine according to claim 1, characterized in that a motor (9) is mounted above the housing (1), and the motor (9) drives a plurality of milling and planing tools (2) to rotate simultaneously through a belt and a belt pulley.

3. The asphalt concrete milling machine according to claim 1, wherein each movable plate (3) is provided with a plurality of through grooves (10), a positioning rod (11) arranged in each through groove (10) is fixed on the side wall of the housing (1), and a pressure spring (12) is connected between each through groove (10) and each positioning rod (11).

4. The asphalt concrete milling machine according to claim 1, characterized in that an armrest is mounted on the right side of the housing (1).