CN110671123A - Rear unearthed type screw machine for shield machine - Google Patents
Rear unearthed type screw machine for shield machine Download PDFInfo
- Publication number
- CN110671123A CN110671123A CN201910920039.8A CN201910920039A CN110671123A CN 110671123 A CN110671123 A CN 110671123A CN 201910920039 A CN201910920039 A CN 201910920039A CN 110671123 A CN110671123 A CN 110671123A
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- China
- Prior art keywords
- cylinder
- section
- cylinder body
- barrel
- driving
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- 230000005641 tunneling Effects 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000002689 soil Substances 0.000 abstract description 19
- 239000002893 slag Substances 0.000 abstract description 10
- 238000007599 discharging Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 239000004575 stone Substances 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008674 spewing Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
- E21D9/124—Helical conveying means therefor
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a screw machine for a rear unearthed shield tunneling machine, which comprises a cylinder body, wherein a first section of cylinder body, a second section of cylinder body, a third section of cylinder body and a fourth section of cylinder body of the cylinder body are sequentially connected, the third section of cylinder body is a telescopic cylinder body, a telescopic device for driving the third section of cylinder body to do telescopic motion is arranged on the outer side of the third section of cylinder body, a driving device for driving a helical blade to operate is connected between the third section of cylinder body and the fourth section of cylinder body, the helical blade is arranged at one end of the first section of cylinder body, and one end of the fourth section. The rear part of the barrel body of the screw machine discharges soil slag, the middle part of the screw blade is hollow, and the soil slag is preferably discharged from a soil bin of the shield machine; the spiral blade is completely retracted into the spiral machine, the back gate device is provided with a plurality of independently controlled gates, and the gates are closed to effectively prevent the occurrence of a gushing condition.
Description
Technical Field
The invention relates to the technical field of shield tunneling machine screw machines, in particular to a screw machine for a rear unearthed shield tunneling machine.
Background
The screw machine is the main equipment for discharging slag in the construction operation process of the shield machine, and the residual soil falling from the front soil bin cut by the cutter head of the shield machine is conveyed to the tail part of the main machine of the shield machine through the continuous rotation of the helical blades in the barrel. The slag discharge amount is controlled by adjusting the rotating speed of the helical blades, so that the earth pressure in front of the shield machine can be maintained to be balanced. Although the function of slagging tap of the screw machine can be realized in the prior art, the center of the helical blade is provided with a shaft, the blade is easy to block when large stones are encountered, the soil discharging difficulty is caused, and the driving part is designed at the tail end of the barrel body, so that the unearthing height of the screw machine is greatly limited.
The spiral conveyer is an important component of a shield machine muck conveying system, and the spiral conveyer is not only responsible for discharging muck in an excavation cabin of the shield machine in shield construction, but also can control the pressure of the soil inner body of the excavation cabin, ensure the pressure balance of the soil of an excavation surface and prevent the ground from collapsing or arching. During tunnel construction, due to a water-rich stratum and construction reasons, a gushing phenomenon is inevitable when slag is discharged because of insufficient improvement of slag soil.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a screw machine for a rear earth-discharging shield tunneling machine, which has a cylindrical ring-shaped driving screw blade, wherein slag is discharged from the rear of the cylindrical body, the middle of the screw blade is hollow, large-particle-size stones have good trafficability, a screw machine shaft can be extended and retracted, a screw machine gate can be closed, and a gushing situation can be prevented.
The invention provides a screw machine for a rear unearthed shield tunneling machine, which comprises a cylinder body, wherein a first section of cylinder body, a second section of cylinder body, a third section of cylinder body and a fourth section of cylinder body of the cylinder body are sequentially connected, the third section of cylinder body is a telescopic cylinder body, a telescopic device for driving the third section of cylinder body to do telescopic motion is installed on the outer side of the third section of cylinder body, a driving device for driving a screw blade to operate is installed between the third section of cylinder body and the fourth section of cylinder body, the screw blade is installed at one end of the first section of cylinder body, and one end of the fourth section of cylinder body is connected with a. The helical blade is of a shaftless form, and the helical blade is helically formed at a certain pitch.
Furthermore, the angle formed by the axis of part of the cylinder body of the fourth section of the cylinder body and the axis of the helical blade is 90-165 degrees, the number of the rear gates of the rear gate device is more than two, and one end of the fourth section of the cylinder body is sequentially connected with the first rear gate, the connecting cylinder body and the second rear gate.
Furthermore, the rear brake device is provided with a switch for independently controlling the opening or closing of the gate.
Further, the first section of barrel is formed by splicing at least two arc sheet bodies, and the adjacent arc sheet bodies are connected through bolts.
Furthermore, the driving device comprises driving motors arranged on the outer side of the driving device and a body cylinder body for connecting the third section of cylinder body with the fourth section of cylinder body, the number of the driving motors is more than two, the axis of the power output end of each driving motor is parallel to the plane of the rotation axis of the helical blade, the power output end of each driving motor is connected with a gear, the gear is meshed with an outer gear ring of a slewing bearing, the slewing bearing is connected with a driving ring, and the inner circle of the driving ring is fixedly connected with the outer circle of the helical blade.
Further, the body barrel outer lane is equipped with the drive barrel, fixed first lip type sealing washer of periphery wall of drive barrel compresses tightly the sealed briquetting of first lip type sealing washer, the lip direction of first lip type sealing washer deviates from the drive ring.
Furthermore, the third section of barrel includes outer barrel, interior barrel, the telescoping device includes flexible hydro-cylinder, the barrel is established to the inside cover of outer barrel, the stiff end fixed connection of flexible hydro-cylinder is on interior barrel, the flexible end fixed connection of flexible hydro-cylinder is on outer barrel, two are no less than to the quantity of flexible hydro-cylinder.
Furthermore, at least more than two notches are formed in the inner peripheral wall of the outer cylinder body, and a second lip-shaped sealing ring is mounted on each notch.
Furthermore, a protective cover is arranged between the telescopic oil cylinder and the third section of cylinder body.
Furthermore, the second section of barrel is provided with a support fixedly connected with the shield tunneling machine.
The invention has the beneficial effects that: the rear part of the barrel body of the screw machine discharges soil slag, the middle part of the screw blade is hollow, and large-particle-size stones have good trafficability, and the soil slag is preferably discharged from the soil bin of the shield machine; the telescopic device controls the barrel to be telescopic, so that the spiral blades are completely retracted into the spiral machine, the front gate between the spiral machine and the shield machine is closed, the rear gate device is bent downwards and is provided with a plurality of independently controlled gates, and the occurrence of a gushing condition is effectively prevented.
Drawings
FIG. 1 is a schematic structural view of a screw machine for a rear unearthed shield tunneling machine according to the present invention;
FIG. 2 is a schematic structural diagram of a first section of a barrel of a screw machine for a rear unearthed shield tunneling machine according to the present invention;
FIG. 3 is a diagram of an embodiment of a first section of a barrel of a screw machine for a rear unearthed shield tunneling machine according to the present invention
FIG. 4 is a schematic structural diagram of a telescoping device of a screw machine for a rear unearthed shield tunneling machine according to the present invention;
FIG. 5 is a schematic structural diagram of a rear brake device of a screw machine for a rear unearthed shield tunneling machine according to the present invention;
FIG. 6 is a schematic structural diagram of a driving device of a screw machine for a rear unearthed shield tunneling machine according to the present invention;
wherein: 11-first section cylinder, 111-circular arc sheet body, 12 second section cylinder, 13-third section cylinder, 14-fourth section cylinder, 2-helical blade, 3-support, 4-rear gate device, 41-first rear gate, 42-second rear gate, 43-connecting cylinder, 5-driving device, 51-driving shell, 52-driving motor, 53-gear, 54-slewing bearing, 55-driving ring, 56-first lip type sealing ring, 57-sealing pressing block, 6-telescoping device, 61-outer cylinder, 62-inner cylinder, 63-protective cover, 64-telescoping oil cylinder and 65-second lip type sealing ring.
Detailed Description
In order to further understand the present invention, the following detailed description will be made with reference to the following examples, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, so to speak, as communicating between the two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
According to fig. 1-5, a screw machine for a rear unearthed shield tunneling machine, the cylinder comprises at least three sections of cylinders, the first section of the cylinder body 11 is sequentially connected with the second section of the cylinder body 12, the third section of the cylinder body 13 and the fourth section of the cylinder body 14, the outer part of the third section of the cylinder body is connected with a telescopic device 6 which can drive the third section of the cylinder body to do telescopic motion, a driving device 5 which drives the helical blade 2 to operate is connected between the third section of the cylinder body and the fourth section of the cylinder body, one end of the fourth section of the cylinder 14 is connected with a back brake device 4, the helical blade 2 is in a shaftless form, the helical blade 2 is spirally formed at a certain pitch, the middle of the blade has a larger passing rate, can be through bulky stone, first section barrel 11 and shield structure machine soil storehouse fixed connection, helical blade 2 stretches into shield structure machine soil storehouse, discharges the dregs in shield structure machine soil storehouse backward through rotating vane.
In order to better implement the present invention, an angle formed by the axis of a part of the fourth-segment cylinder 14 and the axis of the helical blade 2 is 90 ° to 165 °, the number of the rear gates of the rear gate device 4 is two or more, one end of the fourth-segment cylinder 14 is sequentially connected with the first rear gate 41, the connecting cylinder 43 and the second rear gate 42, the fourth-segment cylinder 14 is bent downward, and the two rear gates are bolted, which effectively prevents the gushing.
In order to better implement the invention, the rear gate in the rear gate device 4 is provided with a switch for independently controlling the opening or closing of the gate, and the switch for controlling the gate is freely selected according to the gushing condition.
In order to better implement the invention, the first section of the cylinder body 11 is formed by splicing at least two arc-shaped sheet bodies 111, the adjacent arc-shaped sheet bodies 111 are connected through bolts, and when the helical blade 2 is blocked, the detachable part of the cylinder body is overhauled.
In order to better implement the present invention, the driving device 5 includes driving motors 52 arranged outside the driving device and a main body cylinder (not shown) connecting the third-stage cylinder 13 and the fourth-stage cylinder 14, the number of the driving motors 52 is two or more, the axis of the power output of the driving motors 52 is parallel to the plane of the rotation axis of the helical blade 2, the power output end of the driving motors 52 is connected with a gear 53, the gear 53 is meshed with the outer gear ring of a slewing bearing 54, the slewing bearing 54 is connected with a driving ring 55, the inner circle of the driving ring 55 is fixedly connected with the outer circle of the helical blade 2, the two groups of driving motors 52 synchronously rotate to drive the gear 53 to rotate, and the gear 53 is meshed with the outer gear ring of the slewing bearing 54 to drive the helical blade 2 to rotate.
In order to better implement the present invention, a driving cylinder 51 is disposed on an outer ring of the body cylinder (not shown), a first lip seal 56 and a seal pressing block 57 pressing the first lip seal 56 are fixed on an outer circumferential wall of the driving cylinder 51, a lip direction of the first lip seal 56 deviates from the driving ring 55, and grease is injected between the first lip seals 56 to perform a lubricating and sealing function.
In order to better implement the invention, the third section of cylinder 13 comprises an outer cylinder 61 and an inner cylinder 62, the telescopic device 6 comprises telescopic oil cylinders 64, the inner cylinder 62 is sleeved inside the outer cylinder 61, the fixed ends of the telescopic oil cylinders 64 are fixedly connected to the inner cylinder 62, the telescopic ends of the telescopic oil cylinders 64 are fixedly connected to the outer cylinder 61, the number of the telescopic oil cylinders 64 is not less than two, the distance of the helical blade 2 extending out of the cylinder is less than the stroke of the telescopic oil cylinders 64, and when the telescopic oil cylinders 64 operate, the helical blade 2 moves backwards relative to the cylinder until the helical blade is completely retracted into the first section of cylinder 11, so that the front gate of the screw machine at the shield soil bin part is closed, and the gushing is effectively prevented.
In order to better implement the present invention, at least two or more notches are formed on the inner peripheral wall of the outer cylinder 61, and a second lip-shaped sealing ring 65 is installed on each notch, which helps to ensure the sealing performance between the outer cylinder 61 and the inner cylinder 62 and prevent dust, dirt and impurities from being introduced into the system.
In order to better implement the invention, a protective cover 63 is arranged between the telescopic oil cylinder 64 and the third section of cylinder body 13, and the protective cover 63 protects the cylinder body from surrounding dust during telescopic operation.
In order to better implement the invention, the second section of the cylinder 12 is provided with a support 3 fixedly connected with the shield tunneling machine, the screw machine is fixed on the shield tunneling machine, and the helical blades 2 can stably extend into the soil bin of the shield tunneling machine to carry out slag discharging operation.
The invention relates to a working principle of a screw machine for a rear unearthed shield tunneling machine, which comprises the following steps: and starting the third section of barrel 13, screwing the spiral blade 2 of the screw machine out of the barrel and extending into the soil bin of the shield machine, driving the spiral blade 2 to rotate through the driving device 5 to discharge the muck in the soil bin of the shield machine backwards, starting the third section of barrel 13 to screw the spiral blade 2 of the screw machine into the barrel, closing a gate connected between the barrel and the shield machine, controlling a rear gate of the rear gate device 4 to be closed, and preventing the spewing generated in the process of discharging the muck, thereby completing one working process.
The above-described embodiments are merely illustrative of the embodiments of the present invention, and do not limit the spirit and scope of the present invention. Various modifications and improvements of the technical solutions of the present invention may be made by those skilled in the art without departing from the design concept of the present invention, and all of them should fall into the protection scope of the present invention.
Claims (10)
1. The utility model provides a rear portion unearthed formula shield constructs machine screw machine, a serial communication port, including the barrel, first section barrel (11), second section barrel (12), third section barrel (13), fourth section barrel (14) of barrel connect gradually, third section barrel (13) are scalable barrel, drive third section barrel (13) telescopic machanism (6) of concertina movement are installed to third section barrel (13) outside, install drive arrangement (5) of drive helical blade (2) operation between third section barrel (13) and fourth section barrel (14), helical blade (2) are installed the one end floodgate of first section barrel (11), back device (4) is connected to the one end of fourth section barrel (14).
2. The screw machine for the rear unearthed shield tunneling machine according to claim 1, characterized in that an angle formed by the axis of a part of the fourth segment of the cylinder (14) and the axis of the helical blade (2) is 90 ° to 165 °, the number of the rear gates of the rear gate device (4) is two or more, and one end of the fourth segment of the cylinder (14) is sequentially connected with the first rear gate (41), the connecting cylinder (43) and the second rear gate (42).
3. The screw machine for the back unearthed shield tunneling machine according to claim 1, characterized in that the back gate device (4) is provided with a switch for independently controlling the opening or closing of the gate.
4. The screw machine for the rear unearthed shield tunneling machine according to claim 1, characterized in that the first section of the cylinder (11) is formed by splicing at least two arc-shaped sheet bodies (111), and the adjacent arc-shaped sheet bodies (111) are connected through bolts.
5. The screw machine for the rear earth-moving type shield tunneling machine according to claim 1, wherein the driving device (5) comprises driving motors (52) arranged outside the driving device and a body cylinder (not shown) connecting the third section cylinder (13) and the fourth section cylinder (14), the number of the driving motors (52) is more than two, the axis of the power output end of each driving motor (52) is parallel to the plane where the rotation axis of the helical blade (2) is located, the power output end of each driving motor (52) is connected with a gear (53), the gear (53) is meshed with an outer gear ring of a slewing bearing (54), the slewing bearing (54) is connected with a driving ring (55), and the inner circle of the driving ring (55) is fixedly connected with the outer circle of the helical blade (2).
6. The screw machine for the rear unearthed shield tunneling machine according to claim 5, characterized in that a driving cylinder (51) is arranged on the outer ring of the body cylinder, a first lip-shaped sealing ring (56) and a sealing pressing block (57) pressing the first lip-shaped sealing ring (56) are fixed on the outer circumferential wall of the driving cylinder (51), and the lip direction of the first lip-shaped sealing ring (56) is away from the driving ring (55).
7. The screw machine for the rear unearthed shield tunneling machine according to claim 1, wherein the third section of cylinder (13) comprises an outer cylinder (61) and an inner cylinder (62), the telescopic device (6) comprises a telescopic oil cylinder (64), the inner cylinder (62) is sleeved inside the outer cylinder (61), the fixed end of the telescopic oil cylinder (64) is fixedly connected to the inner cylinder (62), the telescopic end of the telescopic oil cylinder (64) is fixedly connected to the outer cylinder (61), and the number of the telescopic oil cylinders (64) is not less than two.
8. The screw machine for the rear earth-moving type shield tunneling machine according to claim 7, wherein at least two or more notches are formed in the inner peripheral wall of the outer cylinder (61), and a second lip-shaped sealing ring (65) is mounted on each notch.
9. The screw machine for the rear unearthed shield tunneling machine according to claim 7, characterized in that a protective cover (63) is arranged between the telescopic oil cylinder (64) and the third section of the cylinder body (13).
10. The screw machine for the back-unearthed shield tunneling machine according to claim 1, characterized in that the second-stage cylinder (12) is provided with a support (3) fixedly connected with the shield tunneling machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910920039.8A CN110671123A (en) | 2019-09-26 | 2019-09-26 | Rear unearthed type screw machine for shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910920039.8A CN110671123A (en) | 2019-09-26 | 2019-09-26 | Rear unearthed type screw machine for shield machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110671123A true CN110671123A (en) | 2020-01-10 |
Family
ID=69079466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910920039.8A Withdrawn CN110671123A (en) | 2019-09-26 | 2019-09-26 | Rear unearthed type screw machine for shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110671123A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111874548A (en) * | 2020-07-27 | 2020-11-03 | 济南重工集团有限公司 | Screw conveyer driving device for earth pressure balance push bench |
| CN112324453A (en) * | 2020-11-12 | 2021-02-05 | 安徽唐兴机械装备有限公司 | Anti-surging screw conveyor |
| CN115929333A (en) * | 2022-12-20 | 2023-04-07 | 盾科工程装备有限公司 | Spiral unearthed shield machine |
-
2019
- 2019-09-26 CN CN201910920039.8A patent/CN110671123A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111874548A (en) * | 2020-07-27 | 2020-11-03 | 济南重工集团有限公司 | Screw conveyer driving device for earth pressure balance push bench |
| CN112324453A (en) * | 2020-11-12 | 2021-02-05 | 安徽唐兴机械装备有限公司 | Anti-surging screw conveyor |
| CN112324453B (en) * | 2020-11-12 | 2022-12-23 | 安徽唐兴装备科技股份有限公司 | Anti-surging screw conveyor |
| CN115929333A (en) * | 2022-12-20 | 2023-04-07 | 盾科工程装备有限公司 | Spiral unearthed shield machine |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200110 |
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| WW01 | Invention patent application withdrawn after publication |