CN211648167U

CN211648167U - Improved shield tearing cutter

Info

Publication number: CN211648167U
Application number: CN201922215996.9U
Authority: CN
Inventors: 陈晓晓
Original assignee: Shandong Tuoda Engineering Equipment Co ltd
Current assignee: Shandong Tuoda Engineering Equipment Co ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-10-09
Anticipated expiration: 2029-12-12

Abstract

The utility model belongs to the field of tearing cutters, in particular to an improved shield tearing cutter, which aims at solving the problems that the existing tearing cutter is easily worn in the using process, the distance between the cutter bar of the tearing cutter and the base is too long, the tearing cutter is easily broken, the tearing cutter needs to be frequently replaced and the maintenance cost is high, and provides a proposal that the tearing cutter comprises a cutter disc and a shield machine, a rotating mechanism is fixedly welded at the top of the cutter disc, the rotating mechanism is fixedly arranged on the shield machine, a plurality of rotating shafts are arranged at the top of the cutter disc, a mounting part is rotatably sleeved at the outer side of the rotating shafts, a hob cutter is fixedly arranged at the central part of the outer side of the mounting part, compared with the traditional shield tearing cutter, the intensity of the cutter bar can be improved, the cutter bar is not easily deformed, the working efficiency of the shield machine is improved, and the service, the maintenance cost is reduced.

Description

Improved shield tearing cutter

Technical Field

The utility model relates to a tear cutter technical field, especially relate to a cutter is torn to modified shield.

Background

A shield machine is a tunnel boring machine using a shield method. The shield construction method is different from the open construction method in that a shield for constructing and laying a tunnel is a supporting segment while a heading machine is heading.

The original shield tearing cutter has some defects, the tearing cutter is easily worn in the using process, the distance between the cutter bar of the tearing cutter and the base is too long, the tearing cutter is easily broken, the tearing cutter needs to be frequently replaced, and the maintenance cost is high, so that the improved shield tearing cutter is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the existing tearing cutter in the prior art is easily worn and torn in the use process, tearing the cutter arbor of cutter and the distance overlength of base, tearing the cutter and appearing collapsing situation easily, needing frequent change to tear the cutter, the shortcoming that the maintenance cost is high, and the improved shield that proposes tears the cutter.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a cutter is torn to modified shield, includes blade disc and shield structure machine, the fixed welding in top of blade disc has slewing mechanism, and slewing mechanism goes up fixed mounting and construct the machine on, the top of blade disc is provided with a plurality of pivots, and the outside of pivot is rotated the cover and is equipped with the installed part, the outside central part fixed mounting of installed part has the hobbing cutter, the outside fixed mounting of installed part is equipped with two wearing layers that the symmetry set up, and one side that two wearing layers are close to each other closely laminates with the top and the bottom of hobbing cutter respectively, the top fixed mounting of blade disc has the mount pad, and the top fixed mounting of mount pad has a plurality of bases, the top fixed mounting of base has the cutter arbor, and the top of cutter arbor extends to the top and the fixed mounting of base has the tear cutter.

Preferably, strengthen the subassembly and include a plurality of strengthening ribs of fixed mounting at the mount pad top, a plurality of strengthening ribs are two a set of multiunit symmetries and set up, it is located the both sides of same cutter arbor respectively to be located two strengthening ribs of same set, all set up a plurality of installation screws that are the matrix arrangement on two strengthening ribs and the cutter arbor, and all be provided with construction bolt on a plurality of installation screws, two strengthening ribs are through installation screw and construction bolt and same cutter arbor fixed mounting, in order to improve the intensity of cutter arbor installation, the situation of cutter arbor deformation is difficult to appear.

Preferably, the through-hole has been seted up at the top of installed part, and fixed mounting has same bearing on the both sides inner wall of through-hole, the bottom of pivot runs through the inner circle of bearing and welds mutually with the inner circle of bearing, can make things convenient for the hobbing cutter to rotate on the installed part.

Preferably, the top one side of tearing the cutter has seted up the mounting groove, fixed mounting has the arc to tear the tool bit on the bottom inner wall of mounting groove, the top that the tool bit was torn to the arc extends to the top of tearing the cutter, makes the arc tear the tool bit atress more even, can reduce the arc effectively and tear the wearing and tearing of tool bit.

Preferably, the bottom fixed mounting of cutter arbor has the connecting piece, and the top of connecting piece and the top of base all offer a plurality of mounting holes that are the straight line and arrange, and all be provided with the bolt on a plurality of mounting holes, the cutter arbor passes through the top fixed mounting of connecting piece, a plurality of mounting holes and a plurality of bolt and base, can further promote the installation intensity of cutter arbor and base.

In the utility model, the number of the hob cutter and the tearing cutter shown at the top of the cutter head is a number word, which aims to indicate the specific structure of the improved single hob cutter and the tearing cutter, and does not represent the actual number, the cutter bar is originally fixed by a single fixing bolt and a base, when the tearing cutter works, the deformation of the cutter bar caused by overlarge stress is easy to occur, after the reinforcing ribs are fixed at the two sides of the cutter bar, the reinforcing ribs and the cutter bar are fixed by using a plurality of mounting bolts, the strength of the cutter bar can be improved, the deformation of the cutter bar is not easy to occur, the working efficiency of the shield machine is improved, after the wear-resistant layer is fixed at the outer side of the mounting part, the abrasion of the hob cutter can be greatly reduced, compared with the traditional shield tearing cutter, the deformation of the cutter bar is not easy to occur when the strength of, the service life of the hob can be prolonged, and the maintenance cost is reduced;

in order to solve the problem that the connection strength of the base and the cutter bar is not high, the base is designed into a structure shown in the attached drawing 3, the cutter bar is fixed with the top of the base, and is also fixed with one side of the base, so that the stability of fixing the cutter bar is improved, and the working strength of the cutter bar is improved;

in order to solve the serious problem of hobbing cutter wearing and tearing in shield structure machine course of operation, through the wearing layer that the fixed cover was equipped with in the outside of installed part, the position of wearing and tearing shifts to the wearing layer from the hobbing cutter on, can prolong the life of hobbing cutter.

Drawings

Fig. 1 is a partial structural perspective view of an improved shield tearing tool provided by the present invention;

fig. 2 is a schematic structural diagram of an improved shield tearing tool provided by the present invention;

fig. 3 is a structural perspective view of a base of the improved shield tearing tool provided by the present invention.

In the figure: 1 cutter head, 2 rotating shafts, 3 mounting parts, 4 bearings, 5 wear-resistant layers, 6 hobs, 7 mounting seats, 8 bases, 9 connecting pieces, 10 cutter bars, 11 tearing cutters, 12 mounting grooves, 13 arc tearing cutter heads, 14 reinforcing ribs, 15 mounting bolts and 16 through holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example one

Referring to fig. 1-3, an improved shield tearing cutter comprises a cutter head 1 and a shield machine, wherein a rotating mechanism is fixedly welded at the top of the cutter head 1, the rotating mechanism is fixedly arranged on the shield machine, the top of the cutter head 1 is provided with a plurality of rotating shafts 2, and the outer side of the rotating shaft 2 is rotatably sleeved with an installation part 3, the central part of the outer side of the installation part 3 is fixedly provided with a hobbing cutter 6, the outer side of the installation part 3 is fixedly sleeved with two wear-resistant layers 5 which are symmetrically arranged, the mutually close sides of the two wear-resistant layers 5 are respectively and tightly attached to the top and the bottom of the hobbing cutter 6, the top of the cutter head 1 is fixedly provided with an installation seat 7, and the top of the mounting seat 7 is fixedly provided with a plurality of bases 8, the top of the base 8 is fixedly provided with a cutter bar 10, and the top of the cutter bar 10 extends to the upper part of the base 8 and is fixedly provided with a tearing cutter 11, and a reinforcing component is fixedly arranged on the cutter bar 10.

Wherein, the number of the hob cutter 6 and the tearing cutter 11 shown at the top of the cutter head 1 is a number word, which is intended to indicate the specific structure of the single hob cutter 6 and the tearing cutter 11 after improvement, and does not represent the actual number, the cutter bar 10 is originally fixed by a single fixing bolt and the base 8, when the tearing cutter 11 works, the deformation of the cutter bar 10 caused by excessive stress is easy to occur, after the reinforcing ribs 14 are fixed on both sides of the cutter bar 10, the reinforcing ribs 14 and the cutter bar 10 are fixed by using a plurality of mounting bolts 15, the strength of the cutter bar 10 can be improved, the cutter bar 10 is not easy to deform, the working efficiency of the shield machine is improved, after the wear-resistant layer 5 is fixed on the outer side of the mounting part 3, the wear of the hob cutter 6 can be greatly reduced, compared with the traditional shield tearing cutter 11, the strength of the cutter bar 10 is improved, and the cutter bar, the working efficiency of the shield machine is improved, the service life of the hob 6 can be prolonged, and the maintenance cost is reduced.

In this embodiment, in order to solve the serious problem of hobbing cutter 6 wearing and tearing in shield constructs quick-witted work progress, through the wearing layer 5 that is equipped with at the fixed cover in the outside of installed part 3, the position of wearing and tearing shifts to wearing layer 5 from hobbing cutter 6 on, can prolong hobbing cutter 6's life.

The following further improvements are made on the basis of the first embodiment:

example two

The utility model discloses in, strengthen a plurality of strengthening ribs 14 that the subassembly includes fixed mounting at 7 tops of mount pad, a plurality of strengthening ribs 14 are two a set of multiunit symmetries and set up, be located the both sides that are located same cutter arbor 10 respectively with two strengthening ribs 14 of a set of, all set up a plurality of installation screws that are the matrix arrangement on two strengthening ribs 14 and the cutter arbor 10, and all be provided with mounting bolt 15 on a plurality of installation screws, two strengthening ribs 14 are through installation screw and mounting bolt 15 and same cutter arbor 10 fixed mounting, in order to improve the intensity of cutter arbor 10 installation, be difficult to the situation that cutter arbor 10 warp appears.

The utility model discloses in, through-hole 16 has been seted up at the top of installed part 3, and fixed mounting has same bearing 4 on the both sides inner wall of through-hole 16, and the bottom of pivot 2 runs through bearing 4's inner circle and welds mutually with the inner circle of bearing, can make things convenient for hobbing cutter 6 to rotate on installed part 3.

The utility model discloses in, tear top one side of cutter 11 and seted up mounting groove 12, fixed mounting has the arc to tear tool bit 13 on the bottom inner wall of mounting groove 12, and the arc tears the top of tool bit 13 and extends to the top of tearing cutter 11, makes the arc tear tool bit 13 atress more even, can reduce the arc effectively and tear the wearing and tearing of tool bit 13.

The utility model discloses in, the bottom fixed mounting of cutter arbor 10 has connecting piece 9, and the top of connecting piece 9 and the top of base 8 all offer a plurality of mounting holes that are the straight line and arrange, and all be provided with the bolt on a plurality of mounting holes, and cutter arbor 10 passes through connecting piece 9, a plurality of mounting holes and a plurality of bolt and the top fixed mounting of base 8, can further promote the installation intensity of cutter arbor 10 and base 8.

In this embodiment, in order to solve the problem that base 8 and cutter arbor 10 joint strength are not high, through designing base 8 into the structure shown in fig. 3, cutter arbor 10 not only fixes with base 8's top, and cutter arbor 10 still fixes with one side of base 8, improves the fixed stability of cutter arbor 10, has promoted cutter arbor 10's working strength.

In the utility model, the cutter bar 10 is originally fixed by a single fixing bolt and the base 8, when the shield machine drives the tearing cutter 11 to work, the tunneling force on the cutter bar 10 is too large, the stress unit is too small, the situation that the deformation of the fixed cutter bar 10 is too large is easy to occur, after the reinforcing ribs 14 are fixed on the two sides of the cutter bar 10, the reinforcing ribs 14 and the cutter bar 10 are fixed by using a plurality of mounting bolts 15, the strength of the cutter bar 10 can be improved, meanwhile, the cutter bar 10 is not easy to deform, the working efficiency of the shield machine is improved, the improvement mode is that the stress parts are added to share the stress, after the wear-resistant layer 5 is fixed on the outer side of the mounting part 3, the abrasion on the hob 6 can be transferred to the position of the wear-resistant layer 5, the abrasion of the hob 6 can be greatly reduced, the manufacturing material of the wear-resistant layer 5 can be selected according to, compared with the traditional shield tearing cutter 11, the strength of the cutter bar 10 can be improved, meanwhile, the cutter bar 10 is not easy to deform, the working efficiency of the shield machine is improved, the service life of the hob 6 can be prolonged, and the maintenance cost is reduced.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a cutter is torn to modified shield, includes blade disc (1) and shield structure machine, its characterized in that, the fixed welding in top of blade disc (1) has slewing mechanism, and slewing mechanism goes up fixed mounting and is being shielded on the machine, the top of blade disc (1) is provided with a plurality of pivot (2), and the outside of pivot (2) is rotated the cover and is equipped with installed part (3), the outside central part fixed mounting of installed part (3) has hobbing cutter (6), the outside fixed cover of installed part (3) is equipped with two wearing layers (5) that the symmetry set up, and the one side that two wearing layers (5) are close to each other closely laminates with the top and the bottom of hobbing cutter (6) respectively, the top fixed mounting of blade disc (1) has mount pad (7), and the top fixed mounting of mount pad (7) has a plurality of bases (8), the top fixed mounting of base (8) has cutter arbor (, and the top of cutter arbor (10) extends to the top of base (8) and fixed mounting has tearing cutter (11), fixed mounting has the reinforcement subassembly on cutter arbor (10).

2. The improved shield tearing cutter according to claim 1, wherein the reinforcing assembly comprises a plurality of reinforcing ribs (14) fixedly mounted at the top of the mounting seat (7), the plurality of reinforcing ribs (14) are symmetrically arranged in two groups, the two reinforcing ribs (14) in the same group are respectively located at two sides of the same cutter bar (10), a plurality of mounting screw holes arranged in a matrix are formed in the two reinforcing ribs (14) and the cutter bar (10), mounting bolts (15) are arranged on the plurality of mounting screw holes, and the two reinforcing ribs (14) are fixedly mounted on the same cutter bar (10) through the mounting screw holes and the mounting bolts (15).

3. The improved shield tearing cutter according to claim 1, wherein a through hole (16) is formed in the top of the mounting part (3), the same bearing (4) is fixedly mounted on the inner walls of two sides of the through hole (16), and the bottom of the rotating shaft (2) penetrates through the inner ring of the bearing (4) and is welded with the inner ring of the bearing.

4. The improved shield tearing cutter as claimed in claim 1, wherein a mounting groove (12) is formed in one side of the top of the tearing cutter (11), an arc-shaped tearing cutter (13) is fixedly mounted on the inner wall of the bottom of the mounting groove (12), and the top of the arc-shaped tearing cutter (13) extends to the position above the tearing cutter (11).

5. The improved shield tearing cutter according to claim 1, wherein a connecting piece (9) is fixedly mounted at the bottom of the cutter bar (10), a plurality of mounting holes linearly arranged are formed in the top of the connecting piece (9) and the top of the base (8), bolts are arranged on the mounting holes, and the cutter bar (10) is fixedly mounted with the top of the base (8) through the connecting piece (9), the mounting holes and the bolts.