CN112943277A - Novel rotary digging tooth of shield machine - Google Patents
Novel rotary digging tooth of shield machine Download PDFInfo
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- CN112943277A CN112943277A CN202110293305.6A CN202110293305A CN112943277A CN 112943277 A CN112943277 A CN 112943277A CN 202110293305 A CN202110293305 A CN 202110293305A CN 112943277 A CN112943277 A CN 112943277A
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- 210000001503 joint Anatomy 0.000 claims abstract description 33
- 238000004804 winding Methods 0.000 claims abstract description 26
- 238000005192 partition Methods 0.000 claims abstract description 19
- 230000005641 tunneling Effects 0.000 claims abstract description 19
- 230000006835 compression Effects 0.000 claims abstract description 10
- 238000007906 compression Methods 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 5
- 239000002689 soil Substances 0.000 abstract description 19
- 238000005096 rolling process Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 3
- 238000003032 molecular docking Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Classifications
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- 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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
- E21D9/087—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
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- 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
- E21D9/10—Making by using boring or cutting machines
- E21D9/11—Making by using boring or cutting machines with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
- E21D9/116—Making by using boring or cutting machines with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines by means of non-concentric rotary heads
- E21D9/117—Making by using boring or cutting machines with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines by means of non-concentric rotary heads mounted for orientating or sideways shifting relative to the frame
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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)
- Earth Drilling (AREA)
Abstract
The invention discloses a novel rotary excavating tooth of a shield tunneling machine, and relates to the technical field of shield tunneling machine equipment. According to the invention, by arranging the shield tunneling machine turntable, the mounting hole, the fixing base, the threaded hole, the square air bin, the air delivery hole, the connecting air groove, the butt joint hole, the lifting partition plate, the accommodating groove, the air inlet hole, the connecting block, the telescopic rod, the square sliding block, the butt joint column, the compression spring, the air inlet pipe, the telescopic air bag, the push plate, the annular ring, the winding wheel, the rotating column, the torsion spring and the winding rope, external soil can be prevented from entering the mounting hole, the mounting hole can be sealed through the lifting partition plate, and the push plate can enter the mounting hole after high-pressure gas enters the telescopic air bag, so that the soil in the mounting hole is pushed out, and the phenomenon that the external soil enters the mounting hole to influence.
Description
Technical Field
The invention relates to the technical field of shield machine equipment, in particular to a novel rotary excavating tooth of a shield machine.
Background
The shield tunneling machine is a special engineering machine for tunneling, integrates light, mechanical, electrical, hydraulic, sensing and information technologies, has the functions of excavating and cutting soil, conveying soil slag, assembling tunnel lining, measuring, guiding, correcting deviation and the like, relates to multiple subject technologies such as geology, construction, machinery, mechanics, hydraulic pressure, electricity, control, measurement and the like, is designed and manufactured in a 'body-measuring clothes-cutting' mode according to different geology, and has extremely high reliability requirement, and the shield tunneling machine is widely used for tunnel engineering of subways, railways, highways, municipal administration, hydropower and the like.
The rotary excavating tooth is one of important component accessories of a shield machine, the front soil can be broken through the rotary excavating tooth when the shield machine operates, the rotary excavating tooth can generate abrasion, damage and other phenomena due to friction with the soil and needs to be replaced and maintained in time, in the rotary excavating tooth replacement process, the soil in contact with the rotary excavating tooth is easy to slide after losing the support of the rotary excavating tooth, the soil slides to the inside of a mounting hole of the rotary excavating tooth, a new rotary excavating tooth can be prevented from being mounted, and replacement and maintenance of the rotary excavating tooth are affected.
Disclosure of Invention
The invention aims to: in order to solve the problem that the external soil is easily slid into the mounting hole to affect secondary mounting when the rotary excavating tooth is dismounted, a novel rotary excavating tooth of a shield tunneling machine is provided.
In order to achieve the purpose, the invention provides the following technical scheme: a novel rotary digging tooth of a shield machine comprises a shield machine turntable, a fixing mechanism, a sealing mechanism and a pneumatic telescopic mechanism, the end surface of the outer wall of the shield machine turntable is provided with mounting holes penetrating through two ends of the shield machine turntable, the inner wall of each mounting hole is sleeved with a rotary digging tooth main body, a tooth head is arranged at one end of the rotary digging tooth main body which penetrates to the outer part of the shield machine turntable, a fixing hole is arranged on the side surface of the outer wall of one end of the rotary digging tooth main body which is far away from the tooth head, a telescopic bin and a sliding gas bin are arranged inside the mounting hole and positioned outside the mounting hole, the sliding gas bin is positioned at one end of the telescopic bin, one side of the telescopic bin, which is far away from the mounting hole, is provided with a telescopic hole, the fixing mechanism is positioned inside the telescopic bin and the sliding gas bin, the sealing mechanism is located at one end, far away from the tooth head, of the shield machine turntable and located below the mounting hole, and the pneumatic telescopic mechanism is located inside the sealing mechanism.
As a still further scheme of the invention: fixed establishment includes movable block, reference column, expanding spring, flexible fixed column, promotes piece and piston piece, movable block, reference column, expanding spring, flexible fixed column are located the inside in flexible storehouse, flexible fixed column, reference column are located the both sides of movable block respectively, expanding spring is located one side that the movable block is close to the reference column and cup joints each other with the outer wall of reference column, flexible storehouse to the telescopic hole inside is run through to one side that the movable block was kept away from to the reference column, flexible fixed column is kept away from one side of movable block and is run through flexible storehouse to the mounting hole inside, it is located inside the slip gas storehouse to promote piece, piston piece is located the one end that promotes the piece, the one end that promotes the piece and keep away from the piston piece runs through the telescopic hole and contacts to the inside terminal surface that stretches out and draws back the storehouse.
As a still further scheme of the invention: the sealing mechanism comprises a fixed base, a lifting partition plate, a connecting block, a telescopic rod square sliding block, a compression spring and an air inlet pipe, wherein the fixed base and the lifting partition plate are positioned at one end of the outer wall of the shield machine rotary table and below the mounting hole, the lifting partition plate is positioned above the fixed base, threaded holes are formed in two sides of the end surface of the outer wall of the fixed base, a square air bin is arranged inside the fixed base, an air delivery hole is formed in the end surface of the inner wall of the square air bin, which is close to the top end of the inner wall, a connecting air groove is formed in the top end of the inner wall of the air delivery hole, a butt joint hole is formed in the top end of the inner wall of the square air bin, the telescopic rod is positioned at the bottom end of the lifting partition plate, the square sliding block and the compression spring are positioned inside the square air, the both ends that the top of square slider is located the telescopic link are provided with the butt joint post, the intake pipe is located fixed baseplate and keeps away from outer wall one side that the shield constructs the quick-witted carousel and is close to bottom position department, the one end that the lift baffle is close to the shield and constructs the quick-witted carousel is provided with the groove of accomodating, the inner wall bottom of accomodating the groove is provided with the inlet port, the connecting block is located the inner wall one end central point department of accomodating the groove.
As a still further scheme of the invention: pneumatic telescopic machanism includes flexible gasbag, push pedal, ring, rolling wheel, rotates post and torque spring, flexible gasbag is folding to be accomodate and is accomodating inslot portion, the push pedal is located flexible gasbag and keeps away from the one end of accomodating the groove, the ring cup joints each other with flexible gasbag's outer wall, the rolling wheel is located the intermediate position of two connecting blocks, rotate the upper and lower both ends that post, torque spring are located the rolling wheel, torque spring cup joints each other with the outer wall that rotates the post, the one end that the rolling wheel was kept away from to the rotation post rotates with the connecting block and is connected, the winding rope is in the outer wall side of rolling wheel, the one end that the rolling wheel was kept away from to the winding rope runs through to the inside one end with the push pedal of flexible.
As a still further scheme of the invention: the number of the fixed holes is provided with a plurality of fixed holes, the fixed holes are evenly distributed on the side face of the outer wall of the rotary excavating tooth body by taking the rotary excavating tooth body as a center, the number of the telescopic bins is matched with the number of the fixed holes, and the diameter of the outer wall of the telescopic fixed column is matched with the diameter of the inner wall of the fixed hole.
As a still further scheme of the invention: the movable block is of a conical structure, and the diameter of the outer wall of one end, close to the telescopic fixed column, of the movable block is smaller than that of the outer wall of one end, close to the positioning column, of the movable block.
As a still further scheme of the invention: the size of the outer wall of the square sliding block is matched with the size of the inner wall of the square air bin, the height between the air delivery hole and the top end of the inner wall of the square air bin is matched with the height of the outer wall of the square sliding block, the central line of the butt joint column and the central line of the butt joint hole are located on the same vertical axis, and the diameter of the outer wall of the butt joint column is matched with the diameter of the inner wall of the butt joint hole.
As a still further scheme of the invention: the one end that connects the gas tank and keep away from the gas transmission hole is connected with butt joint hole inner wall top, the inside of telescopic link, butt joint post all is provided with the air channel of mutual conduction, the inlet port runs through the bottom of accomodating groove to lift baffle and is connected with the air channel on telescopic link top.
As a still further scheme of the invention: the one end that the push pedal was kept away from to flexible gasbag and the inner wall side fixed connection who accomodates the groove, the quantity of annular circle is provided with a plurality ofly, a plurality of annular circles evenly distributed are in flexible gasbag's outer wall side, the outer wall diameter of flexible gasbag, push pedal, annular circle and the inner wall diameter phase-match of mounting hole, torque spring's upper and lower both ends respectively with wind-up wheel, connecting block fixed connection.
Compared with the prior art, the invention has the beneficial effects that:
1. the rapid mounting and dismounting of the rotary digging tooth can be realized by arranging the shield machine rotary table, the mounting hole, the telescopic bin, the telescopic hole, the sliding gas bin, the rotary digging tooth main body, the tooth head, the fixed hole, the movable block, the positioning column, the telescopic spring, the telescopic fixed column, the pushing block and the piston block, the fixing of the rotary digging tooth main body can be realized by the mutual sleeving of the telescopic fixed column and the fixed hole, the pushing block can be moved into the telescopic bin by injecting high-pressure air into the sliding gas bin, the movable block is extruded, the telescopic fixed column can be driven to shrink into the telescopic bin when the movable block is extruded, so that the dismounting of the rotary digging tooth main body is realized, and the mounting and dismounting working efficiency of the rotary digging tooth main body can be effectively improved by the mutual matching of the parts;
2. through setting up the shield structure machine carousel, the mounting hole, a fixed pedestal, the screw hole, square gas storehouse, the gas transmission hole, connect the gas groove, the butt joint hole, the lift baffle, accomodate the groove, the inlet port, the connecting block, the telescopic link, square slider, the butt joint post, compression spring, the intake pipe, flexible gasbag, the push pedal, the ring, the rolling wheel, the rotation post, torque spring and receipts rolling rope can be to avoiding in the outside soil gets into the mounting hole, it can promote lift baffle to mounting hole one end to get into square gas storehouse through high-pressure gas, can seal the mounting hole through the lift baffle, high-pressure gas can make the push pedal get into the mounting hole after getting into flexible gasbag, thereby release the inside soil of mounting hole, the phenomenon that outside soil got into the mounting hole influence and dug the tooth installation takes place effectively.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of the position a of the present invention.
Fig. 3 is a schematic structural view of the rotary excavating tooth main body of the present invention.
Fig. 4 is an exploded view of the connection of the closure mechanism of the present invention with a pneumatic telescoping mechanism.
Fig. 5 is an enlarged view of the position B of the present invention.
Fig. 6 is a cross-sectional exploded view of the closure mechanism of the present invention.
Fig. 7 is an enlarged view of the position C of the present invention.
Fig. 8 is an exploded view of the structure of the pneumatic telescoping mechanism of the present invention.
Fig. 9 is an enlarged view of the position D of the present invention.
In the figure: 1. a shield machine turntable; 101. mounting holes; 102. a telescopic bin; 103. a telescopic hole; 104. a sliding gas bin; 2. rotating the tooth main body; 201. a tooth head; 202. a fixing hole; 3. a fixing mechanism; 301. a movable block; 302. a positioning column; 303. a tension spring; 304. a telescopic fixing column; 305. a pushing block; 306. a piston block; 4. a sealing mechanism; 401. a fixed base; 4011. a threaded hole; 4012. a square gas bin; 4013. a gas transmission hole; 4014. connecting the air tank; 4015. a butt joint hole; 402. a lifting clapboard; 4021. a receiving groove; 4022. an air inlet; 403. connecting blocks; 404. a telescopic rod; 405. a square slider; 4051. butting columns; 406. a compression spring; 407. an air inlet pipe; 5. a pneumatic telescoping mechanism; 501. a telescopic air bag; 502. pushing the plate; 503. an annular ring; 504. a winding wheel; 505. rotating the column; 506. a torsion spring; 507. and (6) winding the rope.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention based on its overall structure.
Referring to fig. 1 to 9, in the embodiment of the present invention, a novel rotary digging tooth of a shield machine includes a shield machine turntable 1, a fixing mechanism 3, a sealing mechanism 4, and a pneumatic telescopic mechanism 5, wherein an outer wall end surface of the shield machine turntable 1 is provided with a mounting hole 101 penetrating through two ends thereof, an inner wall of the mounting hole 101 is sleeved with a rotary digging tooth main body 2, one end of the rotary digging tooth main body 2 penetrates through to an outer portion of the shield machine turntable 1 and is provided with a tooth head 201, a side surface of an outer wall of one end of the rotary digging tooth main body 2 away from the tooth head 201 is provided with a fixing hole 202, an outer side of the mounting hole 101 inside the mounting hole 101 is provided with a telescopic bin 102 and a sliding gas bin 104, the sliding gas bin 104 is located at one end of the telescopic bin 102 away from the mounting hole 101, the telescopic hole 103 is provided at one side of the telescopic bin 102 away from the mounting hole 101, the fixing mechanism 3 is located inside the telescopic bin, the pneumatic telescoping mechanism 5 is located inside the closing mechanism 4.
As a preferred embodiment of the present invention, the fixing mechanism 3 includes a movable block 301, a positioning post 302, a telescopic spring 303, a telescopic fixing post 304, a pushing block 305 and a piston block 306, the movable block 301, the positioning post 302, the telescopic spring 303 and the telescopic fixing post 304 are located inside the telescopic bin 102, the telescopic fixing post 304 and the positioning post 302 are respectively located at two sides of the movable block 301, the telescopic spring 303 is located at one side of the movable block 301 close to the positioning post 302 and is sleeved with an outer wall of the positioning post 302, one side of the positioning post 302 away from the movable block 301 penetrates through the telescopic bin 102 to the inside of the telescopic hole 103, one side of the telescopic fixing post 304 away from the movable block 301 penetrates through the telescopic bin 102 to the inside of the mounting hole 101, the pushing block 305 and the piston block 306 are located inside the sliding air bin 104, the piston block 306 is located at one end of the pushing block 305, one end of the pushing block 305 away from the piston block, the fixing mechanism 3 can realize quick installation and disassembly of the rotary excavating tooth main body 2, and the maintenance and replacement work efficiency of the rotary excavating tooth main body 2 can be effectively improved.
As a preferred embodiment of the invention, the closing mechanism 4 comprises a fixed base 401, a lifting partition plate 402, a connecting block 403, a square slider 405 of a telescopic rod 404, a compression spring 406 and an air inlet pipe 407, the fixed base 401 and the lifting partition plate 402 are located at one end of the outer wall of the shield tunneling machine turntable 1 and below the mounting hole 101, the lifting partition plate 402 is located above the fixed base 401, threaded holes 4011 are arranged on two sides of the end surface of the outer wall of the fixed base 401, a square air chamber 4012 is arranged inside the fixed base 401, an air delivery hole 4013 is arranged at a position close to the top end of the end surface of the inner wall of the square air chamber 4012, a connecting air groove 4014 is arranged at the top end of the inner wall of the air delivery hole 4013, a butt joint hole 4015 is arranged at the top end of the inner wall of the square air chamber 4012, the telescopic rod 404 is located at the bottom end of the lifting, the bottom of telescopic link 404 runs through to inside being connected with square slider 405's top of square gas storehouse 4012, the both ends that square slider 405's top is located telescopic link 404 are provided with docking post 4051, intake pipe 407 is located fixed base 401 and keeps away from shield structure machine carousel 1's outer wall one side and is close to bottom position department, the one end that lift baffle 402 is close to shield structure machine carousel 1 is provided with accomodates groove 4021, the inner wall bottom of accomodating groove 4021 is provided with inlet port 4022, connecting block 403 is located accomodate groove 4021's inner wall one end central point department, can close mounting hole 101 through closing mechanism 4, thereby avoid outside soil to pass shield structure machine carousel 1 and get into the inside maintenance storehouse of shield structure machine.
As a preferred embodiment of the invention, the pneumatic telescoping mechanism 5 comprises a telescoping air bag 501, a push plate 502, an annular ring 503, a winding wheel 504, a rotating column 505 and a torsion spring 506, the telescoping air bag 501 is folded and accommodated in the accommodating groove 4021, the push plate 502 is positioned at one end of the telescoping air bag 501 far away from the accommodating groove 4021, the annular ring 503 is sleeved with the outer wall of the telescoping air bag 501, the winding wheel 504 is positioned at the middle position of the two connecting blocks 403, the rotating column 505 and the torsion spring 506 are positioned at the upper end and the lower end of the winding wheel 504, the torsion spring 506 is sleeved with the outer wall of the rotating column 505, one end of the rotating column 505 far away from the winding wheel 504 is rotatably connected with the connecting blocks, the winding rope 507 is wound on the side surface of the outer wall of the winding wheel 504, one end of the winding rope 507 far away from the winding wheel 504 penetrates into the telescoping air bag 501 and is connected with one end of the, the soil falling into the mounting hole 101 in the process of disassembling the rotary excavating tooth body 2 is pushed into the mounting hole 101, so that smooth installation of the new rotary excavating tooth body 2 is guaranteed.
As a preferred embodiment of the present invention, a plurality of fixing holes 202 are provided, the plurality of fixing holes 202 are uniformly distributed on the side surface of the outer wall of the rotary excavating tooth body 2 centering on the rotary excavating tooth body 2, the number of the telescopic bins 102 is matched with the number of the fixing holes 202, the diameter of the outer wall of the telescopic fixing column 304 is matched with the diameter of the inner wall of the fixing hole 202, and the fixing of the rotary excavating tooth body 2 can be realized by the mutual sleeving of the telescopic fixing column 304 and the fixing hole 202.
As a preferred embodiment of the invention, the movable block 301 is a conical structure, the diameter of the outer wall of the movable block 301 close to the end of the telescopic fixing column 304 is smaller than the diameter of the outer wall of the movable block 301 close to the end of the positioning column 302, and the movable block 301 can be pushed to move along the inner wall of the telescopic bin 102 when the pushing block 305 performs telescopic motion through the structure.
As a preferred embodiment of the invention, the size of the outer wall of the square sliding block 405 is matched with the size of the inner wall of the square air chamber 4012, the height between the air delivery hole 4013 and the top end of the inner wall of the square air chamber 4012 is matched with the height of the outer wall of the square sliding block 405, the center line of the butt joint column 4051 and the center line of the butt joint hole 4015 are positioned on the same vertical axis, the diameter of the outer wall of the butt joint column 4051 is matched with the diameter of the inner wall of the butt joint hole 4015, when the square sliding block 405 moves to the top end of the square air chamber 4012 through the structure, the butt joint column 4051 can be inserted into the butt joint hole 4015, and the air delivery hole 4013 is positioned below the square air.
As a preferred embodiment of the present invention, one end of the connecting air groove 4014 far from the air delivery hole 4013 is connected to the top end of the inner wall of the docking hole 4015, ventilation grooves which are mutually communicated are respectively provided inside the telescopic rod 404 and the docking post 4051, the air inlet hole 4022 penetrates through the accommodating groove 4021 to the bottom end of the lifting partition plate 402 and is connected to the ventilation groove at the top end of the telescopic rod 404, and through this structure, the air in the square air chamber 4012 and the accommodating groove 4021 can flow, thereby realizing the air transmission of the pneumatic telescoping mechanism 5.
As a preferred embodiment of the present invention, one end of the telescopic airbag 501, which is far away from the push plate 502, is fixedly connected to the side surface of the inner wall of the receiving groove 4021, a plurality of annular rings 503 are provided, the plurality of annular rings 503 are uniformly distributed on the side surface of the outer wall of the telescopic airbag 501, the diameters of the outer walls of the telescopic airbag 501, the push plate 502 and the annular rings 503 are matched with the diameter of the inner wall of the mounting hole 101, the upper end and the lower end of the torsion spring 506 are fixedly connected to the winding wheel 504 and the connecting block 403, the wall scraping operation can be performed on the inner wall of the mounting hole 101 through the push plate 502, the smooth extension and contraction of the telescopic airbag 501 can be realized through the plurality of annular rings 503, and the push plate.
The working principle of the invention is as follows: when the novel rotary excavating tooth of the shield machine is disassembled, the sliding gas bin 104 is connected through the external air pipe and the external high-pressure gas is communicated, so that the external high-pressure gas enters the sliding gas bin 104, the high-pressure gas can push the piston block 306 and the push block 305 to move towards the telescopic bin 102, the push block 305 can extrude the movable block 301, the movable block 301 is in a conical structure, therefore, the movable block 301 can move towards the telescopic hole 103 along the inner wall of the telescopic bin 102 when the movable block 301 is extruded, the movable block 301 can drive the telescopic fixed column 304 to contract into the telescopic bin 102, the telescopic spring 303 can be extruded to be in a compressed state, when the telescopic fixed column 304 is completely contracted and separated from the fixed hole 202, the rotary excavating tooth main body 2 is separated from the shield machine turntable 1, at the moment, the rotary excavating tooth main body 2 can be taken out from the mounting hole 101, and the disassembly of the rotary excavating tooth main body 2 is realized, in the process of disassembling the rotary excavating tooth main body 2, some of the high-pressure gas suddenly falls into the mounting hole 101, and in order to prevent external soil from penetrating through the shield tunneling machine turntable 1, the mounting hole 101 needs to be sealed, at the moment, the external gas pipe is connected with the gas inlet pipe 407 and communicated with external high-pressure gas, the external high-pressure gas can enter the square gas cabin 4012 through the gas inlet pipe 407, the square slider 405 can be pushed by the high-pressure gas to move upwards, the lifting partition 402 can move upwards through the transmission of the telescopic rod 404, when the square slider 405 moves to the top end of the square gas cabin 4012, the lifting partition 402 is flush with the mounting hole 101 to block the mounting hole 101, meanwhile, the butt column 4051 can be inserted into the butt joint hole 4015, the gas transmission hole 4013 is located below the square 401slider 405, at the moment, the butt joint hole 4051 and the ventilation grooves in the telescopic rod 404 are formed through the gas transmission hole 4013, The air inlets 4022 are communicated with each other, high-pressure gas in the square gas bin 4012 can enter the containing groove 4021 to inflate the telescopic airbag 501, the telescopic airbag 501 is inflated to expand to push the push plate 502 to enter the mounting hole 101, the push plate 502 can scrape the wall of the mounting hole 101, soil falling in the mounting hole 101 in the process of disassembling the rotary excavating tooth body 2 can be pushed out, so that the smooth installation of a new rotary excavating tooth body 2 is ensured, finally, the push plate 502 is flush with the side surface of the outer wall of the shield tunneling machine turntable 1, the external soil can be supported to avoid soil collapse to enter the mounting hole 101, in the process, the push plate 502 can enable the winding wheel 504 to rotate through the winding rope 507, the torsion springs 506 are synchronously contracted and twisted, when the rotary excavating tooth body 2 is installed, high-pressure gas in the square gas bin 4012 is firstly pumped out through the external air pump, when the gas in the square gas bin 4012 is reduced, the high-pressure gas in the telescopic airbag 501 can be synchronously counted into the square, at this time, the compression spring 406 can keep the square slider 405 stable, the telescopic airbag 501 can contract, the push plate 502 can move towards the lifting partition plate 402 in a square shape under the action of the torsion spring 506, the telescopic airbag 501 can contract and fold through the annular ring 503, so that the telescopic airbag 501 can contract into the accommodating groove 4021 conveniently, when the telescopic airbag 501 and the push plate 502 completely contract into the accommodating groove 4021, the internal gas of the square gas chamber 4012 is continuously reduced without the supplement of high-pressure gas, the square slider 405 moves downwards under the action of pressure difference, namely the lifting partition plate 402 contracts and descends, finally the lifting partition plate 402 contracts to the lower part of the mounting hole 101, at this time, the rotary tooth body 2 can be inserted into the mounting hole 101 for mounting, when the rotary tooth body 2 completely enters the mounting hole 101, and the fixed hole 202 is aligned with the telescopic fixed column 304, the sliding gas chamber 104 can be deflated, piston block 306, promote piece 305 and lose high-pressure gas's thrust, the movable block 301 will remove to mounting hole 101 direction under the effect of expanding spring 303 this moment, the inclined plane outer wall of movable block 301 can push and promote piece 305 extrusion and reset to the stability of fixed establishment 3's repetitive operation has been guaranteed, the movable block 301 can push flexible fixed column 304 and get into fixed orifices 202 here simultaneously, it is fixed to dig tooth main part 2 soon this moment and shield structure machine carousel 1 interconnect, the installation of digging tooth main part 2 soon has been accomplished promptly and has been fixed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (9)
1. A novel rotary excavating tooth of a shield machine comprises a shield machine turntable (1), a fixing mechanism (3), a sealing mechanism (4) and a pneumatic telescopic mechanism (5), and is characterized in that an outer wall end face of the shield machine turntable (1) is provided with a mounting hole (101) penetrating through two ends of the shield machine turntable, a rotary excavating tooth main body (2) is sleeved on the inner wall of the mounting hole (101), a tooth head (201) is arranged at one end of the rotary excavating tooth main body (2) penetrating through the outer portion of the shield machine turntable (1), a fixing hole (202) is arranged on the side face of the outer wall of one end, far away from the tooth head (201), of the rotary excavating tooth main body (2), a telescopic bin (102) and a sliding gas bin (104) are arranged on the outer side, far away from the mounting hole (101), of the telescopic bin (102) and the sliding gas bin (104), the fixing mechanism (3) is located inside the telescopic bin (102) and the sliding gas bin (104), the sealing mechanism (4) is located at one end, far away from the tooth head (201), of the shield machine turntable (1) and located below the mounting hole (101), and the pneumatic telescopic mechanism (5) is located inside the sealing mechanism (4).
2. The novel rotary excavating tooth of the shield tunneling machine according to claim 1, characterized in that the fixing mechanism (3) comprises a movable block (301), a positioning column (302), a telescopic spring (303), a telescopic fixing column (304), a pushing block (305) and a piston block (306), the movable block (301), the positioning column (302), the telescopic spring (303) and the telescopic fixing column (304) are located inside the telescopic bin (102), the telescopic fixing column (304) and the positioning column (302) are respectively located on two sides of the movable block (301), the telescopic spring (303) is located on one side of the movable block (301) close to the positioning column (302) and is sleeved with the outer wall of the positioning column (302), one side of the positioning column (302) far away from the movable block (301) penetrates through the telescopic bin (102) to the inside of the telescopic hole (103), one side of the telescopic fixing column (304) far away from the movable block (301) penetrates through the telescopic bin (102) to the inside of the mounting hole (101), the push block (305) and the piston block (306) are located inside the sliding air bin (104), the piston block (306) is located at one end of the push block (305), and one end, far away from the piston block (306), of the push block (305) penetrates through the telescopic hole (103) to the inside of the telescopic bin (102) and is in contact with the end face of the movable block (301).
3. The novel rotary excavating tooth of the shield tunneling machine according to claim 1, characterized in that the closing mechanism (4) comprises a fixed base (401), a lifting partition plate (402), a connecting block (403), a telescopic rod (404), a square slider (405), a compression spring (406) and an air inlet pipe (407), the fixed base (401) and the lifting partition plate (402) are located at one end of the outer wall of the shield tunneling machine turntable (1) and below the mounting hole (101), the lifting partition plate (402) is located above the fixed base (401), threaded holes (4011) are formed in two sides of the end surface of the outer wall of the fixed base (401), a square air chamber (4012) is arranged inside the fixed base (401), an air delivery hole (4013) is formed in the position, close to the top end, of the end surface of the inner wall of the square air chamber (4012), and a connecting air groove (4014) is formed in the top end of the inner wall of the air delivery hole, the inner wall top of square gas storehouse (4012) is provided with butt joint hole (4015), telescopic link (404) is located the bottom of lift baffle (402), square slider (405), compression spring (406) are located inside square gas storehouse (4012), compression spring (406) are located the bottom of square slider (405), the bottom of telescopic link (404) is run through to the inside top with square slider (405) of square gas storehouse (4012) and is connected, the top of square slider (405) is located the both ends of telescopic link (404) and is provided with butt joint post (4051), intake pipe (407) are located fixed baseplate (401) and keep away from shield structure machine carousel (1) outer wall one side and are close to bottom position department, the one end that lift baffle (402) is close to shield structure carousel (1) is provided with accomodates groove (4021), the inner wall bottom of accomodating groove (4021) is provided with inlet port (4022), the connecting block (403) is positioned at the center of one end of the inner wall of the receiving groove (4021).
4. The novel rotary excavating tooth of the shield tunneling machine according to claim 3, characterized in that the pneumatic telescoping mechanism (5) comprises a telescoping air bag (501), a push plate (502), an annular ring (503), a winding wheel (504), a rotating column (505) and a torsion spring (506), the telescoping air bag (501) is folded and stored in the storage groove (4021), the push plate (502) is located at one end of the telescoping air bag (501) far away from the storage groove (4021), the annular ring (503) is sleeved with the outer wall of the telescoping air bag (501), the winding wheel (504) is located at the middle position of the two connecting blocks (403), the rotating column (505) and the torsion spring (506) are located at the upper end and the lower end of the winding wheel (504), the torsion spring (506) is sleeved with the outer wall of the rotating column (505), one end of the rotating column (505) far away from the winding wheel (504) is rotatably connected with the connecting blocks (403), the winding rope (507) is wound on the side face of the outer wall of the winding wheel (504), and one end, far away from the winding wheel (504), of the winding rope (507) penetrates through the inside of the telescopic air bag (501) and is connected with one end of the push plate (502).
5. The novel rotary excavating tooth of the shield tunneling machine according to claim 2, characterized in that the number of the fixing holes (202) is provided with a plurality of fixing holes, the fixing holes (202) are evenly distributed on the side surface of the outer wall of the rotary excavating tooth body (2) by taking the rotary excavating tooth body (2) as a center, the number of the telescopic bins (102) is matched with the number of the fixing holes (202), and the diameter of the outer wall of the telescopic fixing column (304) is matched with the diameter of the inner wall of the fixing hole (202).
6. The novel rotary excavating tooth of the shield tunneling machine according to claim 2, characterized in that the movable block (301) is of a conical structure, and the diameter of the outer wall of one end, close to the telescopic fixing column (304), of the movable block (301) is smaller than that of the outer wall of one end, close to the positioning column (302), of the movable block (301).
7. The novel rotary excavating tooth of the shield tunneling machine according to claim 3, characterized in that the size of the outer wall of the square sliding block (405) is matched with the size of the inner wall of the square air bin (4012), the height between the air delivery hole (4013) and the top end of the inner wall of the square air bin (4012) is matched with the height of the outer wall of the square sliding block (405), the center line of the butt joint column (4051) and the center line of the butt joint hole (4015) are located on the same vertical axis, and the diameter of the outer wall of the butt joint column (4051) is matched with the diameter of the inner wall of the butt joint hole (4015).
8. The novel rotary excavating tooth of the shield tunneling machine according to claim 3, characterized in that one end of the connecting air groove (4014) far away from the air delivery hole (4013) is connected with the top end of the inner wall of the butt joint hole (4015), the telescopic rod (404) and the butt joint column (4051) are provided with ventilation grooves which are communicated with each other, and the air inlet hole (4022) penetrates through the accommodating groove (4021) to the bottom end of the lifting partition plate (402) to be connected with the ventilation groove at the top end of the telescopic rod (404).
9. The novel rotary excavating tooth of the shield tunneling machine according to claim 4, characterized in that one end, far away from the push plate (502), of the telescopic air bag (501) is fixedly connected with the side surface of the inner wall of the accommodating groove (4021), a plurality of annular rings (503) are arranged, the annular rings (503) are uniformly distributed on the side surface of the outer wall of the telescopic air bag (501), the diameters of the outer walls of the telescopic air bag (501), the push plate (502) and the annular rings (503) are matched with the diameter of the inner wall of the mounting hole (101), and the upper end and the lower end of the torsion spring (506) are fixedly connected with the winding wheel (504) and the connecting block (403) respectively.
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| CN202110293305.6A CN112943277B (en) | 2021-03-19 | 2021-03-19 | Novel rotary digging tooth of shield tunneling machine |
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| CN202110293305.6A CN112943277B (en) | 2021-03-19 | 2021-03-19 | Novel rotary digging tooth of shield tunneling machine |
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| CN112943277B (en) | 2023-06-23 |
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Effective date of registration: 20230602 Address after: 252000 North 2km east of the intersection of North Ring Road and West Ring Road, Chongwen Street, Guan County, Liaocheng, Shandong Province Applicant after: Shandong Yidetong Mechanical Equipment Manufacturing Co.,Ltd. Address before: School of mechanical and electronic control engineering, Beijing Jiaotong University, 3 Shangyuan village, Haidian District, Beijing 100089 Applicant before: Su Yan |
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