CN213297979U - Excavation system of heading machine - Google Patents
Excavation system of heading machine Download PDFInfo
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- CN213297979U CN213297979U CN202022415649.3U CN202022415649U CN213297979U CN 213297979 U CN213297979 U CN 213297979U CN 202022415649 U CN202022415649 U CN 202022415649U CN 213297979 U CN213297979 U CN 213297979U
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- cutter head
- milling drum
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Abstract
The utility model discloses a heading machine excavation system has solved current heading machine and has carried out the technical problem of dysmorphism face tunnelling difficulty to compound stratum. The utility model discloses a actuating system who links to each other with the shield body, actuating system are connected with the combination blade disc, actuating system includes a plurality of drive unit, and the combination blade disc includes the blade disc of being connected respectively with every drive unit, and the combination blade disc includes the blade disc of arranging with the plane or/and the non-blade disc of arranging with the plane, and each blade disc can control separately, rotates in coordination and mutually noninterfere, and the rotation cuts, stirs the soil body simultaneously, and its excavation rate can reach 80~ 90%; a blind area milling roller is arranged on a shield body on the rear side of the cutter head, and the blind area milling roller corresponds to an excavation blind area between the cutter head in the front and back directions, so that complete machine full-section cutting is realized, and an excellent effect of composite stratum special-shaped full-section excavation is formed.
Description
Technical Field
The utility model relates to a technical field of entry driving machine especially indicates an entry driving machine excavation system.
Background
At present, the special-shaped section tunnel boring machine manufactured at home and abroad has relatively single applicable stratum, is mainly suitable for soft soil strata such as silt, clay, silt, sandy soil and the like, and has little relation to the key technical research of the excavation system of the special-shaped tunnel boring machine for sandy cobble and soft rock composite strata.
The excavation system of the composite stratum special-shaped heading machine has a plurality of problems, wherein the key technical difficulty is mainly the problems of immovable excavation and incapability of discharging in construction: (1) firstly, the flow plasticity of a compact stratum is poor, the existing excavation face is complex in design structure and high in price, excavation of corners of special-shaped sections is difficult to achieve, and the problem of excavation dead zones cannot be solved; (2) secondly, the dumping is relatively difficult, large pebbles can be retained in the soil cabin or move to the periphery of the pipe jacking machine, and can be blocked when the large pebbles are serious, so that the tunneling machine cannot be propelled, and the engineering technical problems provide challenges for the design of an excavation system of the composite stratum irregular tunnel tunneling machine.
The invention discloses a drum-type cutter rectangular push bench which is searched by the prior patent with publication date of 20120201 and publication number of CN102337896A, and comprises a cutter, a cutter driving system, a screw machine unearthing system, a hydraulic propelling system and a rectangular shell, wherein the cutter is a composite stratum drum-type cutter which is sleeved on the cutter driving system and driven by the cutter driving system to rotate, the composite stratum drum-type cutter comprises a plurality of common cutters, a swinging cutter and an over-digging cutter, the cutter shell is a circular tubular component, a partition wall vertical to the axis of the cutter is arranged on the inner wall of the cutter shell, the common cutters are uniformly fixed on the outer wall of the cutter shell, the swinging cutter is hinged to the inner side of the outer wall of the cutter shell through a pin shaft and can rotate around the pin shaft, and the over-digging cutter is fixed on the outer side. Although the excavation surface of the technical scheme of the patent is rectangular and can cover the corner part which can not be covered by the traditional cutter head, the drum-type cutter head is completely adopted to cover the whole excavation surface, so that not only can the requirements of a common cutter head driving system be met, but also the arrangement of the cutter head driving system is difficult; in addition, as only the front side surface of the drum-type cutter head is in contact with an excavated stratum, the slag cannot be smoothly discharged from a dense stratum with poor flow plasticity.
Disclosure of Invention
Not enough to among the above-mentioned background art, the utility model provides a heading machine excavation system has solved current heading machine and has carried out the technical problem of dysmorphism face tunnelling difficulty to compound stratum.
The technical scheme of the utility model is realized like this: a heading machine excavation system comprises a driving system connected with a shield body, wherein the driving system is connected with a combined cutter head, the driving system comprises a plurality of driving units, the combined cutter head comprises cutter heads respectively connected with each driving unit, the combined cutter head comprises cutter heads arranged on the same plane or/and cutter heads arranged on different planes, each cutter head can be controlled independently, the cutter heads rotate in a coordinated manner and do not interfere with each other, soil bodies are cut and stirred in a rotating manner at the same time, and the excavation rate of the excavation machine can reach 80-90%; a blind area milling roller is arranged on a shield body on the rear side of the cutter head, and the blind area milling roller corresponds to an excavation blind area between the cutter head in the front and back directions. The blind area milling drum cuts the blind area that the combination blade disc can not excavate, not only can cooperate the combination blade disc to reach the excavation effect that realizes full section, moreover with the blade disc combined action of arranging on the same plane, can be compulsory carry out the mud stirring, make excavation system possess stable excavation ability, reliable dumping performance.
Furthermore, a soil cabin partition plate is connected between the shield body on the rear side of the combined cutter disc and the driving system in a sealing mode to form a sealing structure, and the blind area milling drum is arranged on the front side of the soil cabin partition plate. The sealing structure can prevent slurry in the tunneling process of the heading machine from entering the operation cabin from the excavation cabin, and the operation of the machine is prevented from being influenced.
Furthermore, an auxiliary milling roller is arranged on the soil cabin partition plate and is positioned on the rear side of the near end of the adjacent cutter head. The auxiliary milling roller and the blind area milling roller form auxiliary cutting, so that the cutting and stirring effects are further enhanced, and the excellent effect of composite stratum special-shaped full-section excavation is achieved.
Further, cutting picks or/and scrapers or/and small hobs are/is arranged on the blind zone milling drum or/and the auxiliary milling drum. The cutting teeth can forcibly stir the slurry, so that the excavation system has stable excavation capacity and reliable soil discharge performance. The soil body is cut by the rotation of the shaft, and the scraper and the small-sized hob have the performance of forcibly stirring slurry and reliably discharging soil.
Further, the cutting picks or/and the blades or/and the mini-hobs are distributed spirally around the blind zone milling drum or/and the auxiliary milling drum in the circumferential direction.
Further, the cutting picks and the scraper are arranged obliquely to the axis of the blind zone milling drum or the auxiliary milling drum.
Furthermore, the cutter head is a spoke cutter head and comprises a cutter beam distributed circumferentially around the center of the cutter head, a hob and a tearing cutter are arranged on the cutter beam, cutters are arranged on two sides of the cutter beam, and a fishtail cutter is arranged at the center of the cutter head. The arrangement and selection of the spoke type cutter head can meet the excavation requirement of the composite stratum to the maximum extent, and the excellent composite stratum tunneling effect is achieved.
Furthermore, the cross section that combination blade disc and blind area milling drum constitute is the class rectangle face, and the class rectangle face is including four blade discs that are located the four corners, and the excavation diameter of the blade disc that is located the four corners equals with the fillet external diameter of excavation section.
Further, the combined cutter head comprises six cutter heads, a first cutter head group and a second cutter head group which are arranged in a pair of non-coplanar manner, the first cutter head group comprises cutter heads arranged on the same plane at the upper left position, the upper right position and the lower middle position, and the second cutter head group comprises cutter heads arranged on the same plane at the lower left position, the lower right position and the upper middle position.
The utility model has the advantages that:
(1) the utility model discloses a full section entry driving machine excavation system of dysmorphism for compound stratum, entry driving machine excavation system adopt the combination blade disc to carry out the main cutting to compound stratum soil body, and the plane is arranged around the blade disc both, also can arrange with the plane. The cutter heads are arranged in a front-rear plane, the utilization rate of the section space is high, a slag flow channel is convenient to form, the number of the cutter heads is large, and the design redundancy of the whole machine is high; the cutter head is arranged on the same plane, the space utilization rate of the section is reduced, the excavation dead zone and the equipment redundancy are greatly reduced, and meanwhile, the tunnel face can be better supported. The front and the back are arranged on the rear side of the combined cutter disc through the milling roller to perform auxiliary cutting on the soil body of the composite stratum, and the main cutting of the combined cutter disc structure is matched, so that the complete machine full-section cutting is realized, and the excellent effect of the composite stratum special-shaped full-section excavation is formed.
(2) The utility model discloses a full section entry driving machine excavation system of dysmorphism for compound stratum has provided one kind and has been the design theory that spiral cutter arranged on milling the cylinder to the cutter can select pick, scraper and small-size hobbing cutter and scraper complex form according to specific geological conditions, and this kind of spiral cutter arranges that the design can be mandatory carries out mud stirring and reliable dumping performance.
(3) The utility model discloses a full section entry driving machine excavation system of dysmorphism for compound stratum compares the open-type tunnel entry driving machine that the cylinder was milled in the area, can be when the tunnelling, through adjusting the discharge amount dynamic balance the place ahead face pressure of dregs or muddy water in the closed soil cabin, adopts the excavation of earth pressure balance or muddy water balanced mode.
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 sectional view of example 1;
FIG. 2 is a front view of embodiment 1;
fig. 3 is a front view of the cutter head of the present invention;
FIG. 4 is a front view of the blind zone milling drum of embodiment 1;
FIG. 5 is a side view of FIG. 4;
FIG. 6 is a sectional view of embodiment 2;
FIG. 7 is a front view of embodiment 2;
FIG. 8 is a front view of the blind zone milling drum and the supplementary milling drum in embodiment 2;
FIG. 9 is a side view of FIG. 8;
FIG. 10 is a front view of the blind zone milling drum and the supplementary milling drum in embodiment 3;
FIG. 11 is a side view of FIG. 10;
fig. 12 is a schematic view of the application of the present invention;
in the figure; 1-a combined cutter head; 101-a cutter head; 102-a knife beam; 103-a cutter; 104-hob cutter; 105-a tearing knife; 106-fish tail knife;
2-blind area milling drum; 201-cutting pick; 202-a scraper; 203-small hob;
3-a drive system; 4-a soil cabin partition plate; 5-shield body; 6-auxiliary milling drum; 7-soil body; 8-soil cabin.
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.
The driving system 3 comprises a plurality of driving units, and each driving unit can be independently controlled and independently operated. The combined cutter head 1 comprises a cutter head 101 which is respectively connected with each driving unit, and as shown in figure 1, the combined cutter head 1 comprises a cutter head 101 which is arranged in the same plane and a cutter head 101 which is arranged in a non-same plane. The cutterheads 101 arranged on the same plane can excavate corresponding excavation faces, and the cutterheads 101 arranged on the non-same plane can strengthen stirring of soil bodies while cutting the soil bodies, so that further smashing and slag discharging are facilitated. Under the action of each driving unit, each cutter 101 can be controlled independently, rotate in a coordinated manner and do not interfere with each other, and simultaneously rotate to cut and stir the soil body, and the excavation rate can reach 80-90%.
A blind area milling roller 2 is arranged on a shield body 5 on the rear side of the cutter head 101, and the blind area milling roller 2 corresponds to an excavation blind area between the cutter head 101 in the front-back direction. The blind area milling drum 2 is used for cutting blind areas which cannot be excavated by the combined cutter disc 1, the combined cutter disc 1 can be matched to achieve the full-section excavation effect, and slurry can be forcibly stirred under the combined action of the combined cutter disc and the cutter discs 101 which are arranged on the same plane, so that an excavation system has stable excavation capacity and reliable soil discharge performance.
Specifically, as shown in fig. 3, the cutter head 101 is a spoke cutter head and includes five cutter beams 102 circumferentially distributed around the center of the cutter head 101, each cutter beam 102 is provided with a hob 104 and a tearing cutter 105, two sides of each cutter beam 102 are provided with cutters 103, and the center of the cutter head 101 is provided with a fishtail cutter 106. The arrangement and selection of the spoke type cutter head can meet the excavation requirement of the composite stratum to the maximum extent, and the excellent composite stratum tunneling effect is achieved.
As shown in fig. 2, the cross section formed by the combination cutter head 1 and the blind area milling drum 2 is a rectangular-like surface, the rectangular-like surface includes four cutter heads 101 located at four corners, and the excavation diameter of the cutter heads 101 located at the four corners is equal to the external diameter of the fillet of the excavation section. The combined cutter head 1 comprises six cutter heads 101, and comprises a first cutter head group and a second cutter head group which are arranged in a pair of non-coplanar manner, wherein the first cutter head group comprises the cutter heads 101 arranged in the same planes of the upper left position, the upper right position and the lower middle position, and the second cutter head group comprises the cutter heads 101 arranged in the same planes of the upper left position, the lower right position and the upper middle position.
In the front view of this embodiment, the outer contour line of the left side blind area milling drum 2 is tangent to the outer contour lines of the upper left and lower left cutter discs 101, the outer contour line of the right side blind area milling drum 2 is tangent to the outer contour lines of the upper right and lower right cutter discs 101, the outer contour line of the left side blind area milling drum 2 is tangent to the outer contour lines of the lower left and lower middle cutter discs 101, the outer contour line of the right side blind area milling drum 2 is tangent to the outer contour lines of the lower right and lower middle cutter discs 101, the outer contour line of the upper left side blind area milling drum 2 is tangent to the outer contour lines of the upper left and upper left cutter discs 101, and the outer contour line of the upper right side blind area milling drum 2 is tangent to the outer contour lines of the upper right and lower middle cutter discs 101.
As shown in fig. 1, a soil cabin partition plate 4 is hermetically connected between a shield body 5 at the rear side of the combined cutter head 1 and the driving system 3 to form a sealing structure, and the blind area milling drum 2 is arranged at the front side of the soil cabin partition plate 4. The sealing structure can prevent slurry in the tunneling process of the heading machine from entering the operation cabin from the excavation cabin, and the operation of the machine is prevented from being influenced.
Specifically, as shown in fig. 4 and 5, the cutting picks 201 are disposed on the blind area milling drum 2 and the auxiliary milling drum 6, the cutting picks 201 are distributed spirally around the blind area milling drum 2 and the auxiliary milling drum 6 in the circumferential direction, and the cutting picks 201 are arranged obliquely to the axes of the blind area milling drum 2 and the auxiliary milling drum 6. The cutting teeth 201 distributed spirally can forcibly stir slurry, so that the excavation system has stable excavation capacity and reliable soil discharge performance.
As shown in fig. 8 and 9, the blind zone milling drum 2 and the auxiliary milling drum 6 are both provided with a scraper 202, the scrapers 202 are distributed spirally around the blind zone milling drum 2 and the auxiliary milling drum 6 in the circumferential direction, and the scrapers 202 are obliquely arranged with the axes of the blind zone milling drum 2 and the auxiliary milling drum 6. The blades 202, which are spirally distributed, forcibly agitate the slurry and reliably remove the soil by rotating the shaft to cut the soil.
The other structure of this embodiment is the same as embodiment 1.
The other structure of this embodiment is the same as embodiment 2.
As shown in fig. 12, when the utility model is applied, the soil body 7 is distributed around the shield body 5 and the combined cutter head 1, and the heading machine can adopt earth pressure balance or muddy water balance mode to heading by adjusting the dynamic balance front tunnel face pressure of the discharge amount of the muck or muddy water in the closed soil cabin 8 during heading.
The present invention is not exhaustive and is well known to those skilled in the art.
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 (9)
1. The utility model provides a entry driving machine excavation system, includes actuating system (3) that links to each other with shield body (5), and actuating system (3) are connected with combination blade disc (1), its characterized in that: the driving system (3) comprises a plurality of driving units, the combined cutter disc (1) comprises cutter discs (101) which are respectively connected with each driving unit, the combined cutter disc (1) comprises cutter discs (101) which are arranged on the same plane or/and cutter discs (101) which are not arranged on the same plane, a blind area milling roller (2) is arranged on a shield body (5) of the rear side of each cutter disc (101), and the blind area milling roller (2) corresponds to an excavation blind area between each cutter disc (101) in the front and back.
2. The roadheader excavation system of claim 1, wherein: the soil cabin partition plate (4) is connected between the shield body (5) on the rear side of the combined cutter head (1) and the driving system (3) in a sealing mode, and the blind area milling drum (2) is arranged on the front side of the soil cabin partition plate (4).
3. The roadheader excavation system of claim 2, wherein: and an auxiliary milling roller (6) is arranged on the soil cabin partition plate (4), and the auxiliary milling roller (6) is positioned at the rear side of the approach end of the adjacent cutter disc (101).
4. The roadheader excavation system of claim 3, wherein: the blind area milling drum (2) or/and the auxiliary milling drum (6) are/is provided with cutting picks (201) or/and scrapers (202) or/and small hobs (203).
5. The roadheader excavation system of claim 4, wherein: the cutting picks (201) or/and the scraper blades (202) or/and the small hob cutters (203) are distributed spirally around the blind zone milling drum (2) or/and the auxiliary milling drum (6) in the circumferential direction.
6. The roadheader excavation system of claim 5, wherein: the cutting pick (201) and the scraper (202) are obliquely arranged with the axis of the blind zone milling drum (2) or the auxiliary milling drum (6).
7. The roadheader excavation system of any one of claims 1-6, wherein: the cutter head (101) is a spoke cutter head and comprises a cutter beam (102) which is circumferentially distributed around the center of the cutter head (101), a hob (104) and a tearing cutter (105) are arranged on the cutter beam (102), cutters (103) are arranged on two sides of the cutter beam (102), and a fishtail cutter (106) is arranged at the center of the cutter head (101).
8. The roadheader excavation system of claim 7, wherein: the section that combination blade disc (1) and blind area milling drum (2) are constituteed is the class rectangle face, and the class rectangle face is including four blade discs (101) that are located the four corners, and the excavation diameter that is located blade disc (101) in the four corners equals with excavation sectional fillet external diameter.
9. The roadheader excavation system of claim 8, wherein: the combined cutter head (1) comprises six cutter heads (101), a first cutter head group and a second cutter head group which are arranged in a non-coplanar manner, wherein the first cutter head group comprises the cutter heads (101) which are arranged in the same plane at the upper left position, the upper right position and the lower middle position, and the second cutter head group comprises the cutter heads (101) which are arranged in the same plane at the lower left position, the lower right position and the upper middle position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022415649.3U CN213297979U (en) | 2020-10-27 | 2020-10-27 | Excavation system of heading machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022415649.3U CN213297979U (en) | 2020-10-27 | 2020-10-27 | Excavation system of heading machine |
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| CN213297979U true CN213297979U (en) | 2021-05-28 |
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| CN202022415649.3U Active CN213297979U (en) | 2020-10-27 | 2020-10-27 | Excavation system of heading machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790059A (en) * | 2021-08-31 | 2021-12-14 | 厦门厦工中铁重型机械有限公司 | Automatic control method for multi-excavation system of rectangular pipe jacking machine |
| CN114109418A (en) * | 2021-11-22 | 2022-03-01 | 中铁二十四局集团安徽工程有限公司 | Rectangular pipe jacking machine |
| CN114427467A (en) * | 2021-12-29 | 2022-05-03 | 山东大学 | Water jet assisted molding special-shaped section cutter head, tunnel boring machine and method |
| CN113790059B (en) * | 2021-08-31 | 2024-05-14 | 厦门厦工中铁重型机械有限公司 | Automatic control method for multiple excavation systems of rectangular pipe jacking machine |
-
2020
- 2020-10-27 CN CN202022415649.3U patent/CN213297979U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790059A (en) * | 2021-08-31 | 2021-12-14 | 厦门厦工中铁重型机械有限公司 | Automatic control method for multi-excavation system of rectangular pipe jacking machine |
| CN113790059B (en) * | 2021-08-31 | 2024-05-14 | 厦门厦工中铁重型机械有限公司 | Automatic control method for multiple excavation systems of rectangular pipe jacking machine |
| CN114109418A (en) * | 2021-11-22 | 2022-03-01 | 中铁二十四局集团安徽工程有限公司 | Rectangular pipe jacking machine |
| CN114427467A (en) * | 2021-12-29 | 2022-05-03 | 山东大学 | Water jet assisted molding special-shaped section cutter head, tunnel boring machine and method |
| CN114427467B (en) * | 2021-12-29 | 2023-01-06 | 山东大学 | Water jet assisted molding special-shaped section cutter head, tunnel boring machine and method |
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