阅读说明：本技术 楔块盘形滚刀及其刀箱 (Wedge disc cutter and cutter box thereof ) 是由 张肖勇 马明刚 刘源 陈雷 张楠楠 李秀全 张肖明 张会龙 钟文强 于 2021-09-15 设计创作，主要内容包括：本发明属于隧道挖掘设备应用技术领域,具体为一种楔块盘形滚刀及其刀箱。包括滚刀本体以及用于固定滚刀本体的刀箱,所述滚刀本体包括刀圈以及用于密封刀圈的端盖,其特征在于,所述端盖包括用于密封刀圈的密封部以及用于放置在刀箱上的放置部,所述放置部呈不规则板状设置,所述放置部上设置有缺口,所述缺口将放置部的部分边缘形成阶梯状,本发明通过对现有盘形滚刀的端盖进行改进,使其兼有托举支撑、双侧限位和旋转卡死滚刀的功能,进而省去了传统设计用于支撑的外露的那部分转轴的空间,大幅缩小了滚刀的宽度,这样可以在有限的空间布置更多的滚刀,而滚刀越多,刀盘的破岩能力越强,从而提高盾构、TBM、顶管等大型非开挖施工设备破碎能力。(The invention belongs to the technical field of application of tunnel excavation equipment, and particularly relates to a wedge block disc cutter and a cutter box thereof. Comprises a hob body and a hob box used for fixing the hob body, wherein the hob body comprises a hob ring and an end cover used for sealing the hob ring, characterized in that the end cover comprises a sealing part for sealing the cutter ring and a placing part for placing on the cutter box, the placing part is arranged in an irregular plate shape, the placing part is provided with a notch, and the notch forms a step shape on part of the edge of the placing part, the invention improves the end cover of the existing disc cutter to ensure that the disc cutter has the functions of lifting support, double-side limit and rotary clamping of the cutter, thereby saving the space of the exposed part of the rotating shaft which is used for supporting in the traditional design, greatly reducing the width of the hob, arranging more hobs in the limited space, and the more the hobs are, the stronger the rock breaking capacity of the cutterhead is, so that the breaking capacity of large-scale trenchless construction equipment such as shield, TBM and jacking pipe is improved.)

1. A wedge block disc cutter and a cutter box thereof comprise a cutter body and a cutter box used for fixing the cutter body, wherein the cutter body comprises a cutter ring and an end cover, and the wedge block disc cutter is characterized in that the end cover comprises a sealing part used for sealing the cutter ring and a placing part used for placing on the cutter box, the placing part is arranged in an irregular plate shape, a notch is arranged on the placing part, the notch forms a step shape on part of the edge of the placing part, the notch comprises an arc notch arranged at one end of the placing part and a polygonal notch arranged at one end of the placing part far away from the arc notch, the cutter ring is rotatably arranged relative to the sealing part, the cutter box comprises a left cutter box and a right cutter box which are arranged at two sides of the cutter body, fixed grooves used for arranging the placing part are arranged on the left cutter box and the right cutter box, the fixed grooves are matched with the placing part, and wedges used for locking the end cover are arranged on the left cutter box and the right cutter box, the wedge block is detachably arranged on the left knife box and the right knife box.

2. The wedge disk cutter and its magazine as set forth in claim 1, wherein the top surface of the wedge is disposed in contact with the placement portion.

3. The wedge disc cutter and the cutter box thereof as claimed in claim 2, wherein the top of the wedge is inclined, and the contact surface of the placing part and the wedge is inclined.

4. The wedge disk cutter and its cutter box of claim 3, wherein the contact surface of the placing part and the wedge is arranged near the arc notch.

5. The wedge block disc cutter and the cutter box thereof as claimed in claim 4, wherein the left cutter box and the right cutter box are detachably and fixedly connected with the wedge block through bolts, and bolt holes are arranged at the bottom of the wedge block.

6. The wedge block disc cutter and the cutter box thereof as claimed in claim 5, wherein the placing part is provided with a fastening bolt, the fastening bolt is arranged close to the end face of the wedge block, and the fastening bolt is in threaded connection with the placing part.

Technical Field

The invention belongs to the technical field of application of tunnel excavation equipment, and particularly relates to a wedge block disc cutter and a cutter box thereof.

Background

The disc cutter is an excavating tool for crushing hard rock, is arranged at the head of large-scale trenchless construction equipment such as a shield, a TBM (tunnel boring machine), a jacking pipe and the like, and is used for cutting rock on a tunnel face and stripping the rock from the tunnel face. The method is widely applied to construction of subway tunnels, railway tunnels, diversion tunnels and urban underground pipe networks. Disc cutters typically have a single-edged, double-edged or multi-edged component, often mounted in a radial or helical configuration on the shield cutter head. The shield machine tunnels forwards under the pressure of the jack, the cutter head of the shield machine rotates, and the cutter arranged on the cutter head of the shield machine revolves along with the cutter head and rotates under the friction force and the pressure, so that the cutting edge of the cutter ring is utilized to perform rolling cutting on the surface of the rock.

The existing disc cutter mainly comprises a cutter ring, an end cover and a cutter shaft, the cutter shaft is fixed on a cutter box when the disc cutter is fixed, the cutter shaft needs to be pressed when the disc cutter is fixed, the installation is complicated, the hob belongs to a loss part, a batch of hobs need to be replaced when the disc cutter is generally tunneled for dozens of meters, the disc cutter needs to be replaced for several days every time, and the construction efficiency is seriously restricted.

Disclosure of Invention

Aiming at the technical problems existing in the installation of the disc cutter, the invention provides the wedge block disc cutter and the cutter box thereof, which have the advantages of reasonable design, simple structure and convenience in installation and effectively improve the construction efficiency.

In order to achieve the above object, the invention provides a wedge disc cutter and a cutter box thereof, comprising a cutter body and a cutter box for fixing the cutter body, wherein the cutter body comprises a cutter ring and an end cover, the end cover comprises a sealing part for sealing the cutter ring and a placing part for placing on the cutter box, the placing part is arranged in an irregular plate shape, the placing part is provided with a notch, the notch forms a ladder shape on part of the edge of the placing part, the notch comprises an arc notch arranged at one end of the placing part and a polygonal notch arranged at one end of the placing part far away from the arc notch, the cutter ring is rotatably arranged relative to the sealing part, the cutter box comprises a left cutter box and a right cutter box arranged at two sides of the cutter body, fixing grooves for arranging the placing part are arranged on the left cutter box and the right cutter box, and the fixing grooves are matched with the placing part, the left knife box and the right knife box are both provided with wedge blocks for locking the end covers, and the wedge blocks are detachably arranged on the left knife box and the right knife box.

Preferably, the top surface of the wedge is disposed in contact with the placement portion.

Preferably, the top of the wedge block is arranged in an inclined plane, and the contact surface of the placing part and the wedge block is arranged in an inclined plane.

Preferably, the contact surface of the placing part and the wedge block is arranged close to the arc-shaped notch.

Preferably, the left knife box and the right knife box are detachably and fixedly connected with a wedge block through bolts, and bolt holes are formed in the bottom of the wedge block.

Preferably, the placing part is provided with a tightening bolt, the tightening bolt is arranged close to the end face of the wedge block, and the tightening bolt is in threaded connection with the placing part.

Compared with the prior art, the invention has the advantages and positive effects that,

1. the invention provides a wedge block disc cutter and a cutter box thereof, wherein an end cover of the existing disc cutter is improved, so that the wedge block disc cutter has the functions of supporting and supporting, bilateral limiting and rotary clamping of the cutter, the space of the exposed part of a rotating shaft for supporting in the traditional design is saved, the width of the cutter is greatly reduced, more cutters can be arranged in the limited space, the more cutters are arranged, the stronger the rock breaking capacity of a cutter head is, the crushing capacity of large-scale trenchless construction equipment such as a shield, a TBM (tunnel boring machine), a pipe jacking and the like is improved, meanwhile, the aim of conveniently installing the cutter is fulfilled through the improvement of the end cover, the installation efficiency of the cutter is improved, and the construction efficiency is further improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.

FIG. 1 is a schematic structural diagram of a wedge disc cutter and a cutter box thereof provided in embodiment 1;

fig. 2 is a schematic structural diagram of the disc cutter provided in embodiment 1;

FIG. 3 is an exploded view between the wedge and the left blade case provided in example 1;

FIG. 4 is an exploded view of the wedge disc cutter and its cutter box provided in example 1;

FIG. 5 is a diagram showing a first step in the schematic view of the installation step provided in example 1;

FIG. 6 is a diagram showing a second step in the schematic view of the mounting step provided in example 1;

FIG. 7 is a diagram showing a third step in the schematic view of the mounting step provided in example 1;

FIG. 8 is a diagram showing a fourth step in the schematic view of the mounting step provided in example 1;

FIG. 9 is a diagram showing a fifth step in the schematic view of the mounting step provided in example 1;

FIG. 10 is an installation end view in a schematic view of an installation step provided in embodiment 1;

FIG. 11 is a schematic structural diagram of the installation of multiple groups of hobs provided by the embodiment;

in the above figures, 1, the hob body; 11. a cutter ring; 2. an end cap; 21. a placement section; 22. an arc-shaped notch; 23. a polygonal notch; 24. a bevel; 3. a rotating shaft; 4. a left knife box; 5. a right knife box; 6. fixing grooves; 7. a wedge block; 8. a bolt; 9. the bolt is pressed tightly.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1 to 11, this embodiment aims to provide a hob which can be installed quickly to achieve the purpose of improving the construction efficiency, and for this reason, the wedge 7 disc hob and the hob box thereof provided by this embodiment include a hob body 1 and a hob box for fixing the hob body 1, wherein the hob body 1 includes a hob ring 11 and an end cover 2, and the positional relationship of the above structures all belong to the existing mature technology, and for this reason, in this embodiment, detailed description is not given.

In the present embodiment, the important point of improvement lies in that the structure of the conventional end cap 2 is implemented, specifically, the end cap 2 provided in the present embodiment includes a sealing portion for sealing the cutter ring 11 and a placing portion 21 for placing on the cutter box, wherein the sealing portion is the end cap 2 portion of the conventional hob, since in the present embodiment, in order to increase the installation speed, the exposed portion of the rotating shaft 3 of the conventional hob body 1 for supporting the rotating shaft 3 is omitted, for this reason, the placing portion 21 cannot rotate, for this reason, in the implementation, if the whole end cap 2 is an integral structure, a rotating structure needs to be added between the end cap 2 and the cutter ring 11, for example, a bearing is added between the end cap 2 and the cutter ring 11 or a structure of an annular edge and an annular groove is formed between the end cap 2 and the cutter ring 11, and in view of the rotation of the hob, for this, the structural design of the bearing is preferably added, considering the high cost of the bearing between the end cap 2 and the cutter ring 11, the end cap 2 is not designed to be a split structure, that is, the sealing part and the placing part 21 are connected through the bearing, so that the cutter ring 11 and the sealing part of the hob can rotate under the condition that the placing part 21 does not rotate any more.

Consider that the effect that placing portion 21 played mainly is the part that replaces traditional pivot 3 to expose, it will satisfy concurrently to lift the support, the spacing function of the dead hobbing cutter of rotatory card of two sides, simultaneously, the effect of having fast installation concurrently again, for this reason, placing portion 21 is irregular platelike setting, the platelike that this place indicates is just similar rectangular structural design, this kind of design convenience enters into the toolbox with it when placing portion 21 is vertical (the vertical state in long limit), and when it was in the horizontality (the horizontal state in long limit), then conveniently die in the toolbox card again.

In order to limit the placing part 21 from moving in the knife box and facilitate the placing part to rotate from the vertical state to the horizontal state, for this reason, a notch is arranged on the placing part 21, the main purpose of the notch is to form a step shape on part of the edge of the placing part 21, thus, the notch can better play a role of limiting, the whole hob is limited in the knife box to avoid the hob from separating, and the rotation is considered, for this reason, the notch comprises an arc notch 22 arranged at one end of the placing part 21 and a polygonal notch 23 arranged at one end of the placing part 21 far away from the arc notch 22, in the embodiment, the arc notch 22 and the polygonal notch 23 are arranged in a diagonal angle, wherein the angle of a central angle corresponding to the arc length of the arc notch 22 is larger than 90 degrees, and similarly, a certain arc setting is also made on the step formed by the notch, which is for the purpose of facilitating the rotation, thereby improving the efficiency in mounting and dismounting, and the polygonal notch 23 is hexagonal in shape, wherein five sides are used for contacting the placing part 21, because the more sides form the more limit, the more stable the fixing to the placing part 21. Of course, too much is not necessary, and too much affects the mounting and dismounting.

Similarly, the knife box includes left knife box 4 and right knife box 5 that set up in hobbing cutter body 1 both sides, and left knife box 4 and right knife box 5 are the cuboid form setting the same with current knife box, and with the messenger of current difference, set up the fixed slot 6 that is used for setting up the portion 21 of placing in the opposite face of left knife box 4 and right knife box 5, run through from top to bottom of fixed slot 6, and the shape of its inner wall agrees with the portion 21 of placing. The fixing grooves 6 are vertically penetrated to facilitate the installation and the disassembly of the placing part 21 in a vertical state, and the horizontal part is not penetrated to meet the requirement that the shape of the inner wall is matched with that of the placing part 21.

Since the fixing grooves 6 on the left and right blade boxes 4 and 5 are fixed by the rotation of the placing part 21, if the placing part 21 is not limited, the placing part 21 is certainly driven to rotate by the rotation of the hob, so that the hob falls off and harm is caused. For this reason, all be provided with the voussoir 7 that is used for locking end cover 2 on left knife case 4 and right knife case 5, for the dismantlement of hobbing cutter, the voussoir can be dismantled and set up on left knife case 4 and right knife case 5, and in order to realize the restriction and rotate, voussoir 7 need contact with placing portion 21, supports tightly, just can realize spacingly, in this embodiment, the top surface and the placing portion 21 contact setting of voussoir 7. Specifically, in this embodiment, the wedge 7 is trapezoidal in cross section, wherein the top line and the bottom line are horizontal oblique lines, so that a chute is provided at one side of the fixing groove 6, and the wedge can be obliquely inserted into the fixing groove 6 and contact with the placing part 21, thereby completing the limiting.

Of course, when the top of the wedge 7 is provided with the inclined surface 24, the contact surface between the placing portion 21 and the wedge 7 is also provided with the inclined surface 24. Only then is the limiting function optimal.

In consideration of the convenience of installation, the contact surface of the placing portion 21 with the wedge 7 is disposed near the arc-shaped notch 22. Like this, when taking out voussoir 7, rotate the one side that the contact surface was kept away from to place portion 21, utilize the arc that arc breach 22 produced, can be quick will place portion 21 and rotate to realize the quick installation of hobbing cutter.

In order to fix the wedge 7, the left knife box 4 and the right knife box 5 are detachably and fixedly connected with the wedge 7 through bolts 8, and bolt holes are formed in the bottom of the wedge 7. Similarly, bolt holes are also formed in the bottoms of the left and right blade cases 4 and 5, so that the wedges 7 are fixed.

Considering that the wedge 7 is inserted into the fixing groove 6 from the inclined groove to limit the placing part 21, although the bolt 8 fixes the placing part to a certain extent, from the angle of stable fixing, in the embodiment, the placing part 21 is provided with the tightening bolt 9, the tightening bolt 9 is arranged close to the end face of the wedge 7, and the tightening bolt 9 is in threaded connection with the placing part 21. The position of the abutting bolt 9 mainly limits the wedge 7 to slide from the position of the chute, so that the aim of better limiting and fixing is fulfilled by utilizing two-point limiting.

Through foretell setting, the portion that the portion 21 of placing that utilizes end cover 2 has replaced driven pivot 3 to expose outside, like this, makes the width of whole hobbing cutter can diminish, makes the hobbing cutter of placing in the unit space more, and is same, because the hobbing cutter of placing in the unit space is more, and the broken point that it formed is also more, and its crushing effect is better, like this, not only can reach the purpose of quick installation, and the crushing effect that also makes is better, reaches the purpose of killing many birds with one stone.

As shown in fig. 11, in the case where a plurality of hobs are installed at the same time, the main difference between the middle case and the left and right cases 4 and 5 is that the fixing grooves 6 are formed on both sides thereof, so that the installation of the hobs on both sides can be satisfied, thereby facilitating the installation of the plurality of hobs.

Specifically, as shown in fig. 5 to 10, the placing section 21 is first rotated so that the long side is vertical, and then moved upward from the bottom of the knife box, and after the hob is moved into the knife box, the placing section 21 is rotated so that the long side of the placing section 21 is horizontal.

Then insert voussoir 7 from the chute to fixed slot 6, after voussoir 7 supported tightly the portion of placing 21, form fixedly with voussoir 7 with the installation of bolt 8 from the bottom of sword case, finally, will support tightly bolt 9 and fix in the screw hole on the portion of placing 21, can accomplish the installation to voussoir 7, likewise, when dismantling, according to opposite step construction can.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.