CN109183878B

CN109183878B - Milling wheel device for ditching and application

Info

Publication number: CN109183878B
Application number: CN201811283132.4A
Authority: CN
Inventors: 权金龙; 刘玉涛; 宋雨; 张�浩; 李跟跟
Original assignee: Xuzhou XCMG Foundation Construction Machinery Co Ltd
Current assignee: Xuzhou XCMG Foundation Construction Machinery Co Ltd
Priority date: 2018-10-30
Filing date: 2018-10-30
Publication date: 2023-07-04
Anticipated expiration: 2038-10-30
Also published as: CN109183878A

Abstract

The invention discloses a milling wheel device for ditching and application, wherein the milling wheel device comprises a milling wheel body, a cutter and a cutter mounting seat; the cutters are arranged in cutter mounting seats which are orderly arranged on the milling wheel body; the cutter mounting seat is arranged in a spiral line form from the outer side of the milling wheel body to the middle part; the cutters in the form of a plurality of spiral lines on the left and right sides form the cutting part of the milling wheel device. Working condition of the milling wheel can be finished: the trench construction with the width of 0.5-1.5 m and the depth of 1.8 m and less can be completed in the frozen soil environment.

Description

Milling wheel device for ditching and application

Technical Field

The invention relates to a ditching milling wheel device, in particular to a milling wheel device which is applied to ditching in frozen soil.

Background

China is a country with a relatively large frozen soil resource ratio. Due to the special performance of frozen soil, the current equipment for excavating frozen soil at home and abroad is less, and seasonal frozen soil severely restricts the construction of engineering equipment in winter. The milling wheel device for cutting the groove in the frozen soil is used as one of the main working devices of the frozen soil trench cutting/grooving machine, plays a decisive pushing role in the development of the frozen soil trench cutting machine, and can effectively solve the construction problems of engineering equipment and the like in the frozen soil working condition.

Disclosure of Invention

The invention aims to provide a milling wheel device for digging grooves, and the milling wheel device can be used for cutting grooves with the width of 0.5-1.5 m and the depth of 1.8 m and less, so that the defects in the prior art are overcome.

The invention is realized according to the following technical scheme:

a milling wheel device for ditching comprises a milling wheel body, a cutter and a cutter mounting seat; the cutters are arranged in cutter mounting seats which are orderly arranged on the milling wheel body; the cutter mounting seat is arranged in a spiral line form from the outer side of the milling wheel body to the middle part; the cutters in the form of a plurality of spiral lines on the left and right sides form the cutting part of the milling wheel device.

Further, the distance between two adjacent cutter points on the same spiral line in the axial direction of the milling wheel body is a.

Further, the value a=h/2/n; in the above disclosure, h is the width of the excavated groove, n is the number of tool mounts on a single spiral line, and the distance unit of a is defined as mm.

Further, alpha is the self-rotation angle of the cutter, the self-rotation angle is arranged at the outer side of the milling wheel, the left side cutter and the right side cutter are symmetrical along the central line of the milling wheel, and the self-rotation angle of the cutter from the outer side to the inner side is reduced from the height within 50 degrees to 0 degrees.

Further, the cutting angle delta of each cutter is consistent, and the milling wheel cuts along the cutting angle delta when working.

Further, when all the cutters are distributed on the milling wheel body according to the spiral line, the milling wheel body is in a V shape.

Further, the circumferential difference angle of cutter arrangement is psi; wherein ψ=360 °/n; in the above disclosure, n is the number of tool mounts on a single helical line.

Further, the first cutter on each spiral line is positioned to protrude from the edge of the milling wheel body by a preset distance.

Further, the circumferential angle of arrangement of the cutters is θ, and θ values of each cutter are different.

The milling wheel device is arranged in a trench digger, and the rotation of the milling wheel is utilized to enable a cutter to cut a medium with the hardness less than 50MPa, so that grooves with the width of 0.5-1.5 m and the depth of 1.8 m and less can be cut.

The invention has the beneficial effects that:

all cutters are arranged in a spiral shape; the edge b of the milling wheel body is required to be protruded when the first cutter on each spiral line is positioned, so that the milling wheel is conveniently protected from being worn during working; all cutters are arranged according to a spiral line and finally form a V shape, so that the discharging in the working process is facilitated, and smooth rotation of the cutters in the tooth holder is facilitated; working condition of the milling wheel can be finished: the trench construction with the width of 0.5-1.5 m and the depth of 1.8 m and less can be completed in the frozen soil environment.

Drawings

FIG. 1 is a front view I of a milling wheel of the present invention;

FIG. 2 is a layout of one of the spirals on the left side of the milling wheel according to the present invention;

FIG. 3 is a side view of FIG. 2;

FIG. 4 is a front view II of the milling wheel of the present invention;

FIG. 5 is a left side view of FIG. 4;

in the figure, a wheel body, a 2-cutter mounting seat and a 3-cutter are milled.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention become more apparent, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1, a milling wheel device for ditching comprises a milling wheel body 1, a cutter 3 and a cutter mounting seat 2; the cutters 3 are arranged in the cutter mounting seats 2, and the cutter mounting seats 2 are orderly arranged on the milling wheel body 1; the arrangement mode of the cutter mounting seat 2 is that the cutter mounting seat is in a spiral line form from the outer side to the middle of the milling wheel body 1; the cutters in the form of a plurality of spiral lines on the left and right sides form the cutting part of the milling wheel device.

The tool 3 is detachably mounted on the tool mounting base 2.

A preferred embodiment of the above-mentioned assembly and disassembly method is as follows:

the tool is fixed by a spring clip on the tool 3, the tool is mainly intended to be a wearing part, the tool is easy to wear in work, the tool mounting seat 2 is welded on the milling wheel body 1, the tool is not required to be replaced, and the tool is designed for protecting the tool apron.

As shown in fig. 3, the distance between two adjacent cutter points on the same spiral line in the axial direction of the milling wheel body is a, and the value a=h/2/n; in the above disclosure, h is the width of the excavated groove, n is the number of tool mounts on a single spiral line, and the distance unit of a is defined as mm.

With continued reference to fig. 3, α is the tool self-rotation angle, the rotation angle is biased to the outside of the cutterhead, and the left side blade and the right side blade are symmetrical along the centerline of the cutterhead, wherein the tool self-rotation angle from the outside to the inside is reduced from the height within 50 ° to 0 °.

As shown in fig. 2, the cutting angle δ of each tool is uniform, wherein the cutting angle δ ranges from 48 ° to 55 °, and is designed according to the lithology and hardness of the cutting medium.

As shown in fig. 5, when all the cutters are arranged on the milling wheel body according to the spiral line, the cutters are in a V shape, so that the cutters can conveniently discharge materials in the working process, and the cutters can smoothly rotate in the tooth holder.

As shown in fig. 4, the circumferential difference angle of the cutter arrangement is ψ; where ψ=360°/n, n is the number of tool mounts on a single helical line.

As shown in FIG. 5, the first cutter on each spiral line is positioned to protrude from the edge of the milling wheel body by a distance b (i.e. the width of the cutter tip is larger than that of the milling wheel body, so as to prevent the milling wheel body from being worn during working), wherein the distance b is 10-20mm.

With continued reference to fig. 4, the circumferential angle of the arrangement of the cutters is θ, and the θ value is different for each cutter.

It follows that the arrangement of all the cutters is in the form of a helix; the edge b of the milling wheel body is required to be protruded when the first cutter on each spiral line is positioned, so that the milling wheel is conveniently protected from being worn during working; all cutters are arranged according to a spiral line, and finally the cutters are in an inverted V shape, so that the discharging in the working process is facilitated, and smooth rotation of the cutters in the tooth holder is facilitated.

The milling wheel device is arranged in a trench digger, and the rotation of the milling wheel is utilized to enable a cutter to cut frozen soil (the frozen soil hardness is less than 50 MPa) and can cut grooves with the width of 0.5-1.5 m and the depth of 1.8 m and less.

Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical scheme of the present invention and are not limiting; while the invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present invention or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the invention, it is intended to cover the scope of the invention as claimed.

Claims

1. A cutterhead device for trenching, characterized in that: comprises a milling wheel body, a cutter and a cutter mounting seat;

the cutters are arranged in cutter mounting seats which are orderly arranged on the milling wheel body; the cutter mounting seat is arranged in a spiral line form from the outer side of the milling wheel body to the middle part;

a plurality of cutters in spiral line form on the left side and the right side form a cutting part of the milling wheel device;

the distance between two adjacent cutter points on the same spiral line in the axial direction of the milling wheel body is a;

its value a=h/2/n;

in the above disclosure, h is the width of the excavated groove, n is the number of cutter mounting seats on a single spiral line, and the distance unit of a is defined as mm;

alpha is the self-rotation angle of the cutter, the self-rotation angle is biased to the outer side of the milling wheel, the left side cutter and the right side cutter are symmetrical along the central line of the milling wheel, and the self-rotation angle of the cutter from the outer side to the inner side is reduced from the height within 50 degrees to 0 degrees;

the cutting angle delta of each cutter is consistent, and the milling wheel cuts along the cutting angle delta when working;

when all cutters are distributed on the milling wheel body according to a spiral line, the milling wheel body is in a V shape;

the circumferential difference angle of cutter arrangement is psi;

wherein ψ=360 °/n;

in the above disclosure, n is the number of tool holders on a single spiral line;

the first cutter on each spiral line is protruded to the preset distance of the edge of the milling wheel body when being positioned;

the circumferential angle of the cutters is theta, and the theta value of each cutter is different.

2. Use of a cutterhead device according to claim 1, characterized in that: the milling wheel device is arranged in the trench digger, and the cutter can cut the medium with the hardness less than 50MPa by utilizing the rotation of the milling wheel, so that the trench with the width of 0.5-1.5 m and the depth of 1.8 m and less can be cut.