The utility model relates to a roadheader cutting head with rake teeth and telescopic structure and incidental drill, belongs to mine equipment. It is the prior roadheader cutting arm and the cutting head of restructuring, is characterized in that the use of ball drive splined shaft sleeve structure, a head bearing the original cutting arm is not telescopic or when stretching into two place, bearing a telescopic structure of science, such as the use of power transmission gear transmission counterweight the increase of rotational coherence to transverse shear almost doubled. Spray to the spray structure, high pressure seal in the shaft position instead of small diameter, to reduce wear and the cutter effective cooling, vertical thrust, using two hydraulic cylinders, push and pull directly controlled, to avoid the original ills by walking and sliding, cutting head is equipped with multi-function activity of teeth, so it has drossing machine function, a plurality of shallow hole drilling with the cutting arm on the appropriate blasting technology, the overall performance is better than drilling device, also can draw valuable stone, to achieve zero cost of tunneling, the whole constitute a kind of soft and hard rocks including hard rock are true the new generation can play boring machine.
【技术实现步骤摘要】
带耙齿的掘进机截割头及其伸缩结构和附带钻具(一)
本技术是一种带耙齿的掘进机截割头及其伸缩结构和附带钻具,具体的说涉及一种掘进机,属于矿山设备类。(二)
技术介绍
现在的掘进机煤巷和软岩掘进性能优良,岩石掘进时,基本是不行的,以260型岩石掘进机为例,把伸缩的截割头,改为了固定的不伸缩的,原因是伸缩的花键处,着力面积受限,抗不住岩石掘进的侧向压力,把内喷雾系统改成了外喷雾,原因是内喷雾系统的高压水封,因直径过大和转动间隙范围内的振动剧烈,密封圈容易磨损损坏,又更换困难,岩石掘进能冒出火星,截齿急需降温,但外喷雾系统做不到,载齿处在高温状态下工作,容易磨损,截割头不会伸缩扒渣困难,左右侧前端在支护时,更是靠人工挖坑栽桩,影响效率。硬岩和特硬岩掘进,明显不现实,于是用钻装机弥补这一缺陷,但能打硬岩的钻装机打软岩又劣势明显,两种机械同时买,企业明显不划算;但地壳是由无数的折皱组成的,在变质岩和岩浆岩区尤为明显,折皱又是由不同岩性组成的层状结构,这就注定岩性必然是有硬有软,交替出现,特别是在多期次的岩浆活动区、破碎带区、接近矿体或断层的蚀变区更是软硬变化频繁,即便在沉积岩 ...
【技术保护点】
一种带耙齿的掘进机截割头及其伸缩结构和附带钻具,它是现有的掘进机截割臂和截割头改制而成;特征是:改一头承压的结构为两处承压的能伸缩的花键式套轴活动结构,数排大滚珠参与着动力传递,将原内喷雾的高压水封改在轴尾,高压水通过心轴的水孔从截割头喷出,以适应硬岩掘进时截齿的有效降温,截割头的纵向推力使用液压缸直接推动心轴,不使用原来的难控的靠行走推力前削,截割头上加装了拆装方便的活动耙齿,使其具有扒渣机功能,截割臂外侧加装了多个浅孔钻具,使其具有了快速的钻孔功能。
【技术特征摘要】
1.一种带耙齿的掘进机截割头及其伸缩结构和附带钻具,它是现有的掘进机截割臂和截割头改制而成;特征是:改一头承压的结构为两处承压的能伸缩的花键式套轴活动结构,数排大滚珠参与着动力传递,将原内喷雾的高压水封改在轴尾,高压水通过心轴的水孔从截割头喷出,以适应硬岩掘进时截齿的有效降温,截割头的纵向推力使用液压缸直接推动心轴,不使用原来的难控的靠行走推力前削,截割头上加装了拆装方便的活动耙齿,使其具有扒渣机功能,截割臂外侧加装了多个浅孔钻具,使其具有了快速的钻孔功能。2.根据权利要求1所述的带耙齿的掘进机截割头及其伸缩结构和附带钻具,其特征在于套筒的花键上带有滚珠。3.根据权利要求1所述的带耙齿的掘进机截割头及其伸缩结构和附带钻具,其特征在于活动的心轴上带有半轴承轴套。4.根据权利要求1所述的带耙齿的掘进机截割头及其伸缩结构和附带...
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