CN212689974U - Broken blade disc and entry driving machine of digging - Google Patents
Broken blade disc and entry driving machine of digging Download PDFInfo
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- CN212689974U CN212689974U CN202021544186.4U CN202021544186U CN212689974U CN 212689974 U CN212689974 U CN 212689974U CN 202021544186 U CN202021544186 U CN 202021544186U CN 212689974 U CN212689974 U CN 212689974U
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Abstract
The utility model discloses a broken blade disc and entry driving machine of digging has solved the problem of blade disc excavation inefficiency among the prior art. The utility model discloses a blade disc body is equipped with central fishtail sword and hobbing cutter on the preceding terminal surface of blade disc body, is equipped with secondary crushing mechanism on the rear end face of blade disc body. The secondary crushing mechanism comprises a twisting leg arranged on the rear end face of the cutter head body, active broken blocks are arranged on the side face, facing the outer circumference of the cutter head body, of the twisting leg, and the active broken blocks are matched with passive broken blocks arranged at the front end of the shield body. The utility model discloses a tooth hob inlays carries out high-efficient broken digging to the reinforced concrete pipeline, reduces cutter wearing and tearing, improves efficiency of construction and construction factor of safety greatly.
Description
Technical Field
The utility model relates to an urban sewage pipeline renews equipment technical field, especially indicates a broken cutterhead and entry driving machine of digging.
Background
With the continuous promotion of the urbanization level in China, old urban pipe networks are damaged due to aging over the years, or the diameter of the original pipeline is too small to meet the requirements, so that the pipeline updating faces a great challenge. At present, open excavation construction is generally adopted for urban pipeline updating, the construction cost is low, the construction difficulty is low, but the defects of large disturbance to the surrounding environment, large occupied construction site and the like exist, the normal life of surrounding residents is influenced, and the mechanical underground excavation method pipeline updating construction method is a construction method which is highly valued by the nation and the government because of the advantages of small occupied area, economy, simplicity, strong practicability, high efficiency and the like, and is the trend of urban underground pipeline updating in the future. The cutting and crushing of the reinforced concrete pipe joints become a technical bottleneck restricting the research and development of mechanical underground excavation equipment, the existing cutter head has poor cutting capability and is very easy to wear and tear on the reinforced concrete pipe joints, and then the updating construction efficiency of pipelines is influenced, so that a cutter head excavation device suitable for cutting reinforced concrete segments is urgently needed to be researched.
SUMMERY OF THE UTILITY MODEL
Not enough to among the above-mentioned background art, the utility model provides a broken blade disc and entry driving machine of digging has solved the problem of blade disc excavation inefficiency among the prior art.
The technical scheme of the utility model is realized like this: the utility model provides a broken blade disc of digging, includes the blade disc body, is equipped with central fishtail sword and hobbing cutter on the preceding terminal surface of blade disc body, is equipped with secondary crushing mechanism on the rear end face of blade disc body.
The secondary crushing mechanism comprises a twisting leg arranged on the rear end face of the cutter head body, active broken blocks are arranged on the side face, facing the outer circumference of the cutter head body, of the twisting leg, and the active broken blocks are matched with passive broken blocks arranged at the front end of the shield body.
The active broken fragments are obliquely arranged on the torsion legs at intervals to form an active stair row, the passive broken fragments are obliquely arranged on the inner wall of the shield body at intervals to form a passive stair row, and the passive broken fragments of the passive stair row are in cross fit with the active broken fragments of the active stair row.
The cutter head body comprises a disk body and a large ring, the large ring is positioned on the outer circumference of the disk body and is coaxial with the disk body, and a central cutter cylinder for mounting a central fishtail cutter is arranged in the center of the disk body; the secondary crushing mechanism is arranged on the back of the disc body.
The rotary cutter is characterized in that a closed box type main beam and an open box type auxiliary beam are arranged on the disk body, the closed box type main beam and the open box type auxiliary beam are distributed in a circular array mode by taking the center of the central cutter cylinder as the circle center, the hob is arranged on the open box type auxiliary beam, a tearing cutter and a first scraper are arranged on the closed box type main beam, and the first scraper is located on two sides of the tearing cutter.
The hobbing cutter is an inserted hobbing cutter, the inserted hobbing cutter comprises a frustum cutter body, the frustum cutter body is obliquely arranged on the open box-type auxiliary beam through a supporting seat, the large end of the frustum cutter body faces a large circular ring, the central axis of the frustum cutter body is intersected with the central axis of the central cutter barrel, and spherical teeth are uniformly distributed on the frustum cutter body.
The closed box girder is a right-angle trapezoidal body, the inclined plane of the right-angle trapezoidal body faces to the large circular ring, tearing knives are arranged on the top plane and the inclined plane of the right-angle trapezoidal body, and the inclination angle of the inclined plane is the same as that of the frustum knife body. The tearing knife is provided with a sawtooth groove.
A heading machine comprises the digging cutter head.
The utility model discloses well drive arrangement drive blade disc realizes the rotation of blade disc, a plurality of hobbing cutters of configuration on the blade disc are arranged on the different cutting radius of blade disc, can realize the cutting to the whole anchor ring of reinforced concrete pipeline, and the sword is torn to a plurality of groups of configuration on the cooperation blade disc, the scraper is accomplished jointly and is cut and peel off broken reinforced concrete sediment piece, the hole of slagging tap on the concrete sediment piece accessible blade disc that the cutting got off discharges to the panel back, the blade disc is turned round the passive broken piece of a plurality of groups on the broken fragment cooperation front shield casing of a plurality of groups initiative of configuration on the leg this moment, can realize the impact breakage and the shearing breakage of the reinforced concrete sediment piece that the blade disc cut off, the restriction particle diameter of slagging tap, broken rock sediment is discharged through the slag discharge on the front shield casing baffle at last. The utility model discloses a tooth hob inlays carries out high-efficient broken digging to the reinforced concrete pipeline, reduces cutter wearing and tearing, improves efficiency of construction and construction factor of safety greatly.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive work.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a rear view structural schematic diagram of the cutter head body.
FIG. 3 is a schematic view of a passive fragment breaking arrangement.
FIG. 4 is a schematic view of the structure of a cutter head in example 2.
Fig. 5 is a rear view structural schematic diagram of a cutter head in embodiment 2.
FIG. 6 is a schematic view of the tearing knife in example 2.
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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
As shown in fig. 1, embodiment 1 is a digging cutter head, which comprises a cutter head body 1, wherein a central fishtail cutter 2 and a hob 3 are arranged on the front end face of the cutter head body 1, the central fishtail cutter 2 is located at the center of the cutter head body, the hob 3 is arranged at the edge of the cutter head body, and the central fishtail cutter 2 and the hob 3 are used in cooperation to efficiently crush a reinforced concrete pipe joint. And a secondary crushing mechanism is arranged on the rear end face of the cutter head body 1. The secondary crushing mechanism can realize impact crushing and shearing crushing of the reinforced concrete slag blocks cut off by the cutter head, limit the slag particle size, and finally discharge the crushed rock slag through a slag discharge hole in the front shield shell partition plate, so that the crushing efficiency is improved.
Further, as shown in fig. 2 and 3, the secondary crushing mechanism comprises a twisting leg 4 arranged on the rear end face of the cutter head body 1, the side face of the twisting leg 4 facing the outer circumference of the cutter head body 1 is provided with an active crushing block 5, the active crushing block 5 is matched with a passive crushing block 7 arranged at the front end of the shield body 6, and the active crushing block 5 and the passive crushing block 7 are arranged in a crossed manner. Preferably, the active broken fragments 5 are obliquely arranged on the torsion legs 4 at intervals to form an active stair row, the passive broken fragments 7 are obliquely arranged on the inner wall of the shield body 6 at intervals to form a passive stair row, and the passive broken fragments 7 of the passive stair row are in cross fit with the active broken fragments 5 of the active stair row. The active broken block 5 and the passive broken block 7 on the twisting leg 4 of the cutter head move relatively in the rotation process of the cutter head body 1, so that large concrete slag blocks can be crushed by secondary impact, the particle size of slag stones is further reduced, and the smooth slag discharging is ensured.
Further, the cutter head body 1 comprises a cutter head body 101 and a large circular ring 102, the large circular ring 102 is located on the outer circumference of the cutter head body 101 and is coaxially arranged with the cutter head body 101, the large circular ring 102 is located on the outermost edge of the cutter head body structure, a wear-resistant layer is arranged in a build-up welding mode, and the wear resistance of the cutter head during working can be effectively guaranteed. A central knife cylinder 103 for mounting the central fishtail knife 2 is arranged at the center of the tray body 101; the secondary crushing mechanism is arranged on the back of the disc body 101. The central fishtail knife 2 is arranged on the central knife cylinder and forms a certain angle with the central line of the end cover of the central knife cylinder, the central fishtail knife is mainly formed by welding a conical knife body and a plurality of alloy teeth, the structural form is mainly conical, other knives can be advanced to be in contact with a palm surface, and the conical central point can play a role in positioning.
As shown in fig. 4, in embodiment 2, a breaking and excavating cutterhead, a closed box type main beam 101-1 and an open box type auxiliary beam 101-2 are arranged on a cutterhead body 101, and a hole with a certain size is formed in the open box type auxiliary beam close to the lower portion of a large circular ring of the cutterhead, so that slag is discharged in the process of construction, and meanwhile, an installation space is provided for installation of an inserted hob. The closed box type main beam 101-1 and the open box type auxiliary beam 101-2 are distributed in a circular array by taking the center of the central knife cylinder 103 as a circle center, and preferably, 3 main beams 3 spoke beams are adopted, and the 3 main beams 3 spoke beams are respectively connected with the central knife cylinder. The hob cutter 3 is arranged on the open box type auxiliary beam 101-2, the closed box type main beam 101-1 is provided with a tearing knife 8 and a first scraper 9, and the first scraper 9 is positioned on two sides of the tearing knife 8. The first scrapers are positioned on two sides of the conical plate on the closed box type main beam and are connected with the conical plate through bolts, and the first scrapers are mainly matched with the inserted hob to scrape the cut reinforced concrete slag blocks.
Further, as shown in fig. 5, the hob 3 is an insert hob, the insert hob includes a frustum-shaped hob body 301, the frustum-shaped hob body 301 is obliquely arranged on the open box-type secondary beam 101-2 through a support base 302, a large end of the frustum-shaped hob body 301 faces the large circular ring 102, a central axis of the frustum-shaped hob body 301 intersects with a central axis of the central hob barrel 103, and spherical teeth 303 are uniformly distributed on the frustum-shaped hob body 301. The inserted hob is in a conical structure, the outer part is large, the inner part is small, a plurality of circles of spherical teeth are arranged on the hob body, the reinforced concrete pipeline can be effectively cut, and the scraping of the reinforced concrete pipeline is completed by matching with the tearing knife and the cutting knife. The embedded hob is provided with a plurality of handles which are distributed on different radiuses of the cutterhead, so that the full-annulus cutting of the reinforced concrete segment can be realized.
Further, as shown in fig. 6, the closed box girder 101-1 is a right-angle trapezoid, the inclined surface of the right-angle trapezoid faces the large circular ring 102, the top plane and the inclined surface of the right-angle trapezoid are both provided with tearing knives 8, and the tearing knives arranged on the top plane of the right-angle trapezoid are arranged perpendicular to the top plane and are mainly used for assisting in cutting the domestic garbage at the center of the concrete pipeline. The tearing knife on the inclined plane and the inclined plane are arranged at a certain angle and are mainly used for assisting in cutting the reinforcing steel bars in the concrete pipeline. The inclination angle of the inclined plane is the same as that of the frustum cutter body 301, and cutting efficiency is improved. The tearing knife 8 is provided with a sawtooth groove 81. Namely, the structural form of the tearing knife 8 is different from that of a conventional shell tearing knife, a body of the tearing knife close to the alloy is provided with a plurality of sawtooth-shaped grooves, and the auxiliary inserted hob rolls the cut steel bars into the sawtooth-shaped grooves, so that the steel bars are broken along with the rotation of the cutterhead body.
The cutting to the concrete pipe is accomplished through the inserted hob of configuration on the blade disc panel to this embodiment to cooperate and tear sword and first scraper and accomplish scraping and peeling off the reinforcing bar, the concrete fragment that cuts down can continue the breakage under secondary breaker's effect, arranges sediment through mud slag notch at last, but wide application in old pipeline such as city cable, sewage abolishes the renewal field.
The other structure is the same as embodiment 1.
Example 4: a heading machine comprises the breaking and digging cutter head in embodiment 2, and is used for updating urban sewage pipelines and improving construction efficiency.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a broken cutterhead that digs which characterized in that: the fish tail cutter comprises a cutter head body (1), wherein a central fish tail cutter (2) and a hob cutter (3) are arranged on the front end face of the cutter head body (1), and a secondary crushing mechanism is arranged on the rear end face of the cutter head body (1).
2. The breaking cutterhead of claim 1, wherein: the secondary crushing mechanism comprises a twisting leg (4) arranged on the rear end face of the cutter head body (1), wherein active broken blocks (5) are arranged on the side face, facing the outer circumference of the cutter head body (1), of the twisting leg (4), and the active broken blocks (5) are matched with passive broken blocks (7) arranged at the front end of the shield body (6).
3. The breaking cutterhead of claim 2, wherein: the active broken blocks (5) are obliquely arranged on the torsion legs (4) at intervals to form an active step row, the passive broken blocks (7) are obliquely arranged on the inner wall of the shield body (6) at intervals to form a passive step row, and the passive broken blocks (7) of the passive step row are in cross fit with the active broken blocks (5) of the active step row.
4. The breaking cutterhead according to claim 1, 2 or 3, wherein: the cutter head body (1) comprises a disk body (101) and a large ring (102), the large ring (102) is located on the outer circumference of the disk body (101) and is coaxially arranged with the disk body (101), and a central cutter cylinder (103) for mounting a central fishtail cutter (2) is arranged in the center of the disk body (101); the secondary crushing mechanism is arranged on the back of the disc body (101).
5. The breaking cutterhead of claim 4, wherein: be equipped with on disk body (101) and seal box girder (101-1) and open box auxiliary girder (101-2), seal box girder (101-1) and open box auxiliary girder (101-2) use the center of center tool cylinder (103) to become circular array and distribute as the centre of a circle, hobbing cutter (3) set up on opening box auxiliary girder (101-2), are equipped with on sealing box girder (101-1) and tear sword (8) and first scraper (9), and first scraper (9) are located the both sides of tearing sword (8).
6. The breaking cutterhead of claim 5, wherein: hobbing cutter (3) are the hob of inlaying the tooth, the hob of inlaying the tooth includes frustum cutter body (301), and frustum cutter body (301) set up on opening box auxiliary beam (101-2) through supporting seat (302) slope, and the major part end of frustum cutter body (301) is towards big ring (102), and the central axis of frustum cutter body (301) intersects with the central axis of central sword section of thick bamboo (103), and the equipartition has spherical tooth (303) on frustum cutter body (301).
7. The breaking cutterhead of claim 6, wherein: the closed box type main beam (101-1) is a right-angle trapezoidal body, the inclined plane of the right-angle trapezoidal body faces the large circular ring (102), tearing cutters (8) are arranged on the top plane and the inclined plane of the right-angle trapezoidal body, and the inclined angle of the inclined plane is the same as that of the frustum cutter body (301); the tearing knife (8) is provided with a sawtooth groove (81).
8. A heading machine is characterized in that: comprising a breaking cutterhead in accordance with claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021544186.4U CN212689974U (en) | 2020-07-30 | 2020-07-30 | Broken blade disc and entry driving machine of digging |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021544186.4U CN212689974U (en) | 2020-07-30 | 2020-07-30 | Broken blade disc and entry driving machine of digging |
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| Publication Number | Publication Date |
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| CN212689974U true CN212689974U (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021544186.4U Active CN212689974U (en) | 2020-07-30 | 2020-07-30 | Broken blade disc and entry driving machine of digging |
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| CN (1) | CN212689974U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113250708A (en) * | 2021-05-18 | 2021-08-13 | 中铁工程装备集团有限公司 | Method for enabling large-diameter TBM to pass through small-diameter tunnel |
| CN115788316A (en) * | 2023-02-09 | 2023-03-14 | 浙大城市学院 | Propelling and crushing device for drilling hard rock layer |
-
2020
- 2020-07-30 CN CN202021544186.4U patent/CN212689974U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113250708A (en) * | 2021-05-18 | 2021-08-13 | 中铁工程装备集团有限公司 | Method for enabling large-diameter TBM to pass through small-diameter tunnel |
| CN113250708B (en) * | 2021-05-18 | 2022-04-19 | 中铁工程装备集团有限公司 | Method for enabling large-diameter TBM to pass through small-diameter tunnel |
| CN115788316A (en) * | 2023-02-09 | 2023-03-14 | 浙大城市学院 | Propelling and crushing device for drilling hard rock layer |
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