CN220469916U - Upward heading machine and excavation system thereof - Google Patents
Upward heading machine and excavation system thereof Download PDFInfo
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- CN220469916U CN220469916U CN202322122731.0U CN202322122731U CN220469916U CN 220469916 U CN220469916 U CN 220469916U CN 202322122731 U CN202322122731 U CN 202322122731U CN 220469916 U CN220469916 U CN 220469916U
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- slag
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- cutterhead
- excavation system
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- 238000009412 basement excavation Methods 0.000 title claims abstract description 35
- 239000002893 slag Substances 0.000 claims abstract description 210
- 230000000903 blocking effect Effects 0.000 claims abstract description 50
- 230000005641 tunneling Effects 0.000 claims abstract description 20
- 238000004140 cleaning Methods 0.000 claims description 14
- 238000005192 partition Methods 0.000 abstract description 27
- 239000013049 sediment Substances 0.000 abstract description 6
- 230000013011 mating Effects 0.000 abstract description 2
- 239000002689 soil Substances 0.000 description 23
- 230000009286 beneficial effect Effects 0.000 description 18
- 238000007599 discharging Methods 0.000 description 10
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model belongs to the technical field of tunneling equipment, and particularly provides an upward tunneling machine and an excavation system thereof. This upward entry driving machine excavation system includes blade disc and shield body, and shield body includes shell and preceding baffle, and the cooperation clearance department of the dorsal part of blade disc and the front side of shell is equipped with tang structure, and tang structure is including the female tang of locating the blade disc and the public tang of locating the shell, and public tang is equipped with the pushing off the sediment face that is used for blockking the dregs to get into through the cooperation clearance, and female tang is equipped with the mating surface that is used for with pushing off the sediment face cooperation in order to form the pushing off the sediment clearance. The upward heading machine comprises the upward heading machine excavation system. Under the action of the slag blocking surface, the slag excavated by the cutterhead is difficult to directly enter the front partition plate at the back of the cutterhead, and the problem that the slag is easy to fall into the front partition plate at the back of the cutterhead in the prior art is solved.
Description
Technical Field
The utility model belongs to the technical field of tunneling equipment, and particularly relates to an upward tunneling machine and an excavation system thereof.
Background
Along with the great development of the foundation construction industry, more and more shaft construction projects such as communicating the ground, communicating the upper tunnel and the lower tunnel are carried out, and a full-face tunnel boring machine for tunneling from bottom to top is also generated.
The applicant's patent publication number CN217632432U provides an upward tunneling device comprising a cutterhead for tunneling upward through rock breaking and a shield body for supporting the tunnel wall, the shield body comprising a housing and a front bulkhead, the cutterhead being rotatably arranged on the front bulkhead by a slewing bearing system. Considering the directional characteristics of the upward tunneling and the ease of arranging other equipment, the slag tapping system of the tunneling device is provided with a central slag tapping pipe.
However, in the actual tunneling process, because the back of the cutterhead and the front end of the shield body shell are flat annular surfaces, the muck is easy to fall down onto the front partition plate on the back of the cutterhead from the gap between the cutterhead and the shield body shell, and if a large amount of muck is accumulated in the front partition plate, the rotating resistance of the cutterhead can be increased, and the muck is easy to invade the slewing bearing sealing system, so that the sealing is invalid.
Disclosure of Invention
The utility model aims to provide an upward tunneling machine excavation system which solves the technical problem that dregs easily fall onto a front baffle plate at the back of a cutterhead from a gap between the cutterhead and a shield shell in the prior art. The utility model also aims to provide an upward heading machine so as to solve the same technical problems.
In order to achieve the above purpose, the technical scheme of the excavation system of the upward heading machine provided by the utility model is as follows:
the utility model provides an upward entry driving machine excavation system, includes blade disc and shield body, the shield body includes shell and preceding baffle, the dorsal part of blade disc with the cooperation clearance department of the front side of shell is equipped with tang structure, tang structure is including locating female tang of blade disc with locate the public tang of shell, public tang is equipped with and is used for blockking the dregs face that passes through the cooperation clearance, female tang be equipped with be used for with the cooperation of pushing off the dregs face is in order to form the cooperation face that keeps off the dregs clearance.
The beneficial effects are that: the utility model improves the excavation system of the upward heading machine in the prior art. When the heading machine pushes upwards to heading, as the spigot structure is arranged between the shell and the cutterhead, the spigot structure also comprises a slag blocking surface, and under the action of the slag blocking surface, the slag excavated by the cutterhead is difficult to directly enter the front partition plate at the back of the cutterhead, so that the problem that the slag falls into the front partition plate at the back of the cutterhead easily in the prior art is solved.
As a further development, the slag-blocking surface is a ramp surface which extends from front to rear in a direction away from the axis of rotation of the cutterhead.
The beneficial effects are that: an upward slope surface is formed, and the slag blocking effect of the slag blocking surface is further improved.
As a further improvement, the slag-blocking surface is a step surface extending from front to rear in a direction away from the rotational axis of the cutterhead.
The beneficial effects are that: an upward step structure is formed, and the slag blocking effect of the slag blocking surface is further improved.
As a further improvement, the slag blocking surface is an arc surface which extends from front to back in a direction away from the rotation axis of the cutterhead.
The beneficial effects are that: an upward round corner structure is formed, and the slag blocking effect of the slag blocking surface is further improved.
As a further improvement, the slag blocking surface is formed by a front end surface of the housing.
The beneficial effects are that: the male spigot is not required to be independently and fixedly installed, and the male spigot is directly machined on the front end face of the shell, so that the cost is low.
As a further improvement, the front partition plate is provided with a slag removing port, and the slag removing port is provided with a slag discharging channel for discharging the slag piled up on the front partition plate.
The beneficial effects are that: therefore, if the slag soil breaks through the slag blocking surface, the slag soil accumulated by the front partition plate can still be discharged through the slag cleaning port, and the slag soil is ensured not to be accumulated on the front partition plate for a large amount for a long time.
As a further improvement, the upward heading machine excavation system is also provided with a slag guide pipe, one end of the slag guide pipe is connected with the slag removal port, the other end of the slag guide pipe is used for being connected with a slag discharge pipe of the upward heading machine, and the slag guide pipe is used for guiding slag on the front partition plate to the slag discharge pipe of the upward heading machine.
The beneficial effects are that: therefore, if the slag soil breaks through the slag blocking surface, the slag soil falling into the front baffle plate can directly enter the slag discharging pipe of the heading machine through the slag guiding pipe, the slag cleaning port is not required to be cleaned manually and independently, and the cleaning efficiency is improved.
As a further improvement, a slag pushing plate is fixedly arranged at the back of the cutterhead, can rotate along with the cutterhead, and is provided with a slag pushing part capable of pushing slag piled up by the front baffle plate to the slag cleaning port.
The beneficial effects are that: the slag pushing plate automatically pushes the slag to the slag removing port, so that the slag at any circumferential position of the front partition plate can be effectively cleaned.
As a further improvement, a slag guide ring is fixedly arranged on the inner wall of the shell, and the slag guide ring is provided with a slag guide part for guiding the slag soil passing through the slag blocking gap to the slag cleaning port.
The beneficial effects are that: when the slag soil passes through the fit clearance and falls downwards, the slag soil can directly fall to the slag removal port under the action of the slag guide ring, so that the cleaning efficiency of the slag soil is further improved.
In order to achieve the above purpose, the technical scheme of the upward heading machine provided by the utility model is as follows:
the utility model provides an upward heading machine, includes excavation system, and the excavation system includes blade disc and shield body, and the shield body includes shell and preceding baffle, the dorsal part of blade disc with the cooperation clearance department of the front side of shell is equipped with tang structure, tang structure is including locating the female tang of blade disc with locate the public tang of shell, public tang is equipped with the pushing off the sediment face that is used for blockking dregs and passes through the cooperation clearance, female tang be equipped with be used for with pushing off the cooperation of sediment face in order to form pushing off the cooperation face of sediment clearance.
The beneficial effects are that: the utility model improves the excavation system of the upward heading machine in the prior art. When the heading machine pushes upwards to heading, as the spigot structure is arranged between the shell and the cutterhead, the spigot structure also comprises a slag blocking surface, and under the action of the slag blocking surface, the slag excavated by the cutterhead is difficult to directly enter the front partition plate at the back of the cutterhead, so that the problem that the slag falls into the front partition plate at the back of the cutterhead easily in the prior art is solved.
As a further development, the slag-blocking surface is a ramp surface which extends from front to rear in a direction away from the axis of rotation of the cutterhead.
The beneficial effects are that: an upward slope surface is formed, and the slag blocking effect of the slag blocking surface is further improved.
As a further improvement, the slag-blocking surface is a step surface extending from front to rear in a direction away from the rotational axis of the cutterhead.
The beneficial effects are that: an upward step structure is formed, and the slag blocking effect of the slag blocking surface is further improved.
As a further improvement, the slag blocking surface is an arc surface which extends from front to back in a direction away from the rotation axis of the cutterhead.
The beneficial effects are that: an upward round corner structure is formed, and the slag blocking effect of the slag blocking surface is further improved.
As a further improvement, the slag blocking surface is formed by a front end surface of the housing.
The beneficial effects are that: the male spigot is not required to be independently and fixedly installed, and the male spigot is directly machined on the front end face of the shell, so that the cost is low.
As a further improvement, the front partition plate is provided with a slag removing port, and the slag removing port is provided with a slag discharging channel for discharging the slag piled up on the front partition plate.
The beneficial effects are that: therefore, if the slag soil breaks through the slag blocking surface, the slag soil accumulated by the front partition plate can still be discharged through the slag cleaning port, and the slag soil is ensured not to be accumulated on the front partition plate for a large amount for a long time.
As a further improvement, the upward heading machine excavation system is also provided with a slag guide pipe, one end of the slag guide pipe is connected with the slag removal port, the other end of the slag guide pipe is used for being connected with a slag discharge pipe of the upward heading machine, and the slag guide pipe is used for guiding slag on the front partition plate to the slag discharge pipe of the upward heading machine.
The beneficial effects are that: therefore, if the slag soil breaks through the slag blocking surface, the slag soil falling into the front baffle plate can directly enter the slag discharging pipe of the heading machine through the slag guiding pipe, the slag cleaning port is not required to be cleaned manually and independently, and the cleaning efficiency is improved.
As a further improvement, a slag pushing plate is fixedly arranged at the back of the cutterhead, can rotate along with the cutterhead, and is provided with a slag pushing part capable of pushing slag piled up by the front baffle plate to the slag cleaning port.
The beneficial effects are that: the slag pushing plate automatically pushes the slag to the slag removing port, so that the slag at any circumferential position of the front partition plate can be effectively cleaned.
As a further improvement, a slag guide ring is fixedly arranged on the inner wall of the shell, and the slag guide ring is provided with a slag guide part for guiding the slag soil passing through the slag blocking gap to the slag cleaning port.
The beneficial effects are that: when the slag soil passes through the fit clearance and falls downwards, the slag soil can directly fall to the slag removal port under the action of the slag guide ring, so that the cleaning efficiency of the slag soil is further improved.
Drawings
FIG. 1 is a schematic diagram of an embodiment 1 of an excavation system of an upward heading machine;
FIG. 2 is an enlarged view of a portion of the stop structure of FIG. 1;
reference numerals illustrate:
1. a cutterhead; 2. a spigot structure; 3. a housing; 4. a slag pushing plate; 5. a front baffle; 6. a slag removing port; 7. a slag discharging pipe; 8. a driving device; 9. a slag guide ring; 10. a slag guide pipe; 11. a slag soil improvement pipe; 12. a center swivel joint; 201. a spigot ring; 202. a slag blocking surface.
Detailed Description
The present utility model is described in further detail below with reference to examples.
In order to solve the problem that the dregs easily pass through the fit clearance between the cutter head and the shell, the utility model firstly improves the structure of the fit clearance between the cutter head and the shell, and a spigot structure which plays a role of blocking the dregs is arranged between the cutter head and the shell, thereby solving the problem that the dregs easily enter the clearance.
The utility model provides a concrete embodiment 1 of an excavation system of an upward heading machine, which comprises the following steps:
the excavation system of the upward heading machine provided by the embodiment is shown in fig. 1, and comprises a cutter head 1 and a shield body, wherein the shield body comprises a shell 3 and a front baffle 5, the shell 3 plays a role in supporting and protecting for an annular structure, and the cutter head 1 can rotate relative to the shield body to cut and break rock. The drive means 8 and slewing bearing support of the main drive system of the heading machine are mounted in the shield body, the specific mounting method being known to the person skilled in the art and will not be described again.
Because the back of the conventional cutterhead 1 and the front end face of the shell 3 are flat annular surfaces, a gap formed by the cooperation of the back and the shell is a standard annular structure, when tunneling upwards, dregs easily enter from the gap and fall on the front partition plate, a main driving sealing system is directly threatened, and adverse effects on the rotation of the cutterhead are caused when serious.
In view of the above, this embodiment improves the fit clearance structure of the front side of the housing 3 and the back of the cutterhead 1, and the spigot structure 2 is provided at the fit clearance portion, and the spigot structure 2 plays a role of blocking the penetration of the dregs through the fit clearance. Specifically, tang structure 2 includes public tang and female tang, and shell 3 is located to public tang, and blade disc 1 is located to female tang, and public tang is equipped with the pushing off the slag face that is used for blockking the dregs, and female tang is equipped with the mating surface that is used for forming the pushing off the slag clearance with pushing off the slag face cooperation, namely on the axial cross-section of tang structure position, public tang is closer to the central axis, and female tang is located the outside of public tang relatively, and the clearance between public tang and the female tang forms pushing off the slag clearance.
In this embodiment, as shown in fig. 2, the spigot structure 2 specifically includes a spigot ring 201 fixed on the cutterhead 1, and a specific fixing method of the spigot ring 201 may be welding, bolting, or buckling, and the spigot ring 201 corresponds to a female spigot. The spigot construction 2 further comprises a slag blocking surface 202 formed by the front end surface of the housing 3, i.e. the housing 3 itself forms a male spigot. The slag-blocking surface 202 is a tapered annular surface, the cross section of which is in a slope shape, and the slope gradually moves away from the rotation center of the cutterhead 1 from front to back (front is defined as the tunneling direction, and front is above the upward heading machine), in other words, the diameter of the slag-blocking surface 202 gradually moves away from the rotation center of the cutterhead 1 from front to back. This ensures that the slag-blocking surface 202 can form an upward slope, and that a better slag-blocking effect can be ensured when the heading machine is heading upward. Of course, the spigot ring 201 is correspondingly provided with a matching surface which is matched with the slag blocking surface 202 and is also a conical ring surface.
Further, in the present embodiment, the slag-blocking surface 202 is formed by the front end surface of the housing 3, similarly to chamfering the housing 3. Therefore, the fixed connection of other parts is not needed, the structure is simple, and the cost is low. In fact, in other embodiments, it is of course possible to fix the spigot ring structure of the male spigot in the housing 3.
The present embodiment also improves the front bulkhead 5 based on the concept of slag removal, considering that slag may accidentally break through the slag-stopping surface 202 and fall into and accumulate on the front bulkhead 5. As shown in fig. 1, the slag removing opening 6 is arranged on the front partition board 5 in the embodiment, and the slag removing opening 6 is provided with a slag removing channel, namely, the slag deposited on the front partition board 5 can be discharged downwards through the slag removing opening 6, so that the slag is prevented from being deposited on the front partition board 5.
In addition, the problem of rapid slag discharge from the slag removal port is related, and the embodiment also carries out series improvement design for discharging the slag soil from the slag removal port 6.
As shown in fig. 1, the slag removal port 6 is also connected with a slag guide pipe 10, and the slag discharged from the slag removal port 6 can be discharged outwards through the slag guide pipe 10. In this embodiment, the inlet end of the slag guide pipe 10 is connected with the slag removing port 6, the outlet end is used for being communicated with the slag discharging pipe 7 of the heading machine, and slag can automatically fall into the slag discharging pipe 7 through the slag guide pipe 10, so that the efficiency is high.
As shown in fig. 1, the cutterhead 1 is further connected with a slag pushing plate 4, and the slag pushing plate 4 is fixed on the cutterhead 1 and can rotate along with the cutterhead 1, and the specific structure of the slag pushing plate 4 is not limited, and it should have a slag pushing part for pushing the slag to rotate towards the slag cleaning port 6. Therefore, the slag soil at any position in the circumferential direction of the front baffle plate 5 can be discharged efficiently under the condition that only one slag removing port 6 is arranged.
As shown in fig. 1, the inner wall of the housing 3 is also connected with a slag guiding ring 9, the concrete structure of the slag guiding ring 9 is not limited, the slag guiding ring 9 can be funnel-shaped, and slag which is accidentally entered through the slag blocking gap can slide to the slag removing opening 6 through the slag guiding ring 9, namely the slag guiding ring 9 is provided with a slag guiding part for guiding the slag which is accidentally passed through the slag blocking gap to the slag removing opening.
It should be noted that the solutions provided for the problem of efficient slag removal can be combined together to achieve a better slag removal effect. However, with either solution, the efficiency is higher than when the slag removal opening 6 is opened manually.
If the tunneling stratum of the upward tunneling machine used in the embodiment is a soft soil stratum, in order to improve the tunneling efficiency and ensure the mobility of the dregs, the implementation is further provided with a dregs improving function, as shown in fig. 1, a dregs improving pipe 11 and a center rotary joint 12 are further provided in the embodiment, and the dregs improving agent can be led to the front of the cutterhead 1 through the dregs improving pipe 11 and the center rotary joint 12.
The concrete embodiment 2 of the excavation system of the upward heading machine provided by the utility model is mainly different from the embodiment 1 in that: in example 1, the slag blocking surface was a conical annulus. In this embodiment, the slag blocking surface may be a ring surface extending vertically or extending from front to back, and the cross section of the male spigot is similar to an "L" structure, and can also function as slag blocking.
The concrete embodiment 3 of the excavation system of the upward heading machine provided by the utility model is mainly different from the embodiment 1 in that: in example 1, the slag blocking surface was a conical annulus. In this embodiment, the slag blocking surface may be a step surface, which is far away from the axis of rotation of the cutterhead from front to back, i.e. corresponds to an upward heading machine, and the step forms a similar climbing step, so that the slag blocking effect is also good.
The concrete example 4 of the excavation system of the upward heading machine provided by the utility model is mainly different from the example 1 in that: in example 1, the slag blocking surface was a conical annulus. In this embodiment, the slag blocking surface is an arc surface, where the arc surface refers to a section structure of the slag blocking surface along the direction of the rotation axis of the cutterhead being arc, and the arc surface extends from front to back along the direction of the rotation axis of the cutterhead, that is, corresponds to the upward heading machine, and at this time, the slag blocking surface is similar to a rounded corner, and has a good slag blocking effect.
The concrete embodiment 5 of the excavation system of the upward heading machine provided by the utility model is mainly different from the embodiment 1 in that: in embodiment 1, the front partition plate is provided with a slag removal port, and the purpose of the front partition plate is to ensure that slag can be rapidly discharged. In this embodiment, the slag removal port may not be included, and a spigot structure is provided between the cutter head and the shield body, so that the problem that slag soil easily falls to the front partition plate can be solved.
Specific embodiments of upward heading machine in the present utility model:
the upward heading machine includes an excavation system, i.e., the upward heading machine excavation system described in any one of embodiments 1 to 5 of the above-described upward heading machine excavation system, which is not described in detail herein.
It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present utility model, and the present utility model is not limited to the above-mentioned embodiments, but may be modified without inventive effort or equivalent substitution of some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides an upward entry driving machine excavation system, includes blade disc and shield body, and the shield body includes shell and preceding baffle, its characterized in that, the dorsal part of blade disc with the cooperation clearance department of the front side of shell is equipped with tang structure, tang structure is including locating the female tang of blade disc with locate the public tang of shell, public tang is equipped with the skim face that is used for blockking dregs and passes through the cooperation clearance, female tang be equipped with be used for with the cooperation of skim face is in order to form the cooperation face that skim clearance.
2. An upward heading machine excavation system as claimed in claim 1, wherein the slag blocking surface is a sloped surface extending from front to rear in a direction away from the axis of rotation of the cutterhead.
3. An upward heading machine excavation system as claimed in claim 1, wherein the slag blocking surface is a stepped surface extending from front to rear in a direction away from the axis of rotation of the cutterhead.
4. An upward heading machine excavation system as claimed in claim 1, wherein the slag blocking surface is an arcuate surface extending from front to rear in a direction away from the axis of rotation of the cutterhead.
5. An upward heading machine excavation system as claimed in any one of claims 1 to 4, wherein the slag blocking face is formed by a front face of the housing.
6. An upward heading machine excavation system as claimed in any one of claims 1 to 4, wherein the front bulkhead is provided with a slag removal port having a slag removal passage through which slag deposited on the front bulkhead is removed.
7. An upward tunneling machine excavation system of claim 6, further comprising a slag guide tube having one end connected to the slag removal port and the other end for connecting to a slag pipe of the upward tunneling machine and for guiding slag on the front bulkhead to the slag pipe of the upward tunneling machine.
8. The upward tunneling machine excavation system of claim 6, wherein a slag pushing plate is fixedly arranged on the back of the cutterhead, the slag pushing plate can rotate with the cutterhead and is provided with a slag pushing part capable of pushing slag piled up by the front separator towards the slag cleaning port.
9. The upward heading machine excavation system of claim 6, wherein a slag guide ring is fixedly provided on an inner wall of the housing, the slag guide ring having a slag guide portion for guiding slag passing through the slag blocking gap to the slag removal port.
10. An upward heading machine comprising an upward heading machine excavation system as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322122731.0U CN220469916U (en) | 2023-08-08 | 2023-08-08 | Upward heading machine and excavation system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322122731.0U CN220469916U (en) | 2023-08-08 | 2023-08-08 | Upward heading machine and excavation system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220469916U true CN220469916U (en) | 2024-02-09 |
Family
ID=89797638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322122731.0U Active CN220469916U (en) | 2023-08-08 | 2023-08-08 | Upward heading machine and excavation system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220469916U (en) |
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2023
- 2023-08-08 CN CN202322122731.0U patent/CN220469916U/en active Active
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