CN113389560A - Normal-pressure tool changing method and tool changing tool of shield machine - Google Patents
Normal-pressure tool changing method and tool changing tool of shield machine Download PDFInfo
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- CN113389560A CN113389560A CN202110752403.1A CN202110752403A CN113389560A CN 113389560 A CN113389560 A CN 113389560A CN 202110752403 A CN202110752403 A CN 202110752403A CN 113389560 A CN113389560 A CN 113389560A
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 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 claims description 24
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 14
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 14
- 241001330002 Bambuseae Species 0.000 claims description 14
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 14
- 239000011425 bamboo Substances 0.000 claims description 14
- 230000005641 tunneling Effects 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 description 20
- 238000010586 diagram Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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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
- E21D9/06—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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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)
- Mechanical Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a normal-pressure tool changing method and tool changing tool of a shield machine, wherein the shield machine comprises a cutter, a cutter barrel and an outer barrel, a first mounting hole is formed in the outer barrel, a flashboard is arranged on the outer barrel, the cutter barrel comprises a front barrel and a rear barrel, and the normal-pressure tool changing method comprises the following steps: pulling the cutter barrel backwards from the rear of the cutter barrel until the cutter is positioned at the rear side of the flashboard, and the front barrel part is positioned in the first mounting hole, and closing the flashboard; detaching the rear cylinder from the front cylinder; pulling the front cylinder backwards until the front cylinder and the cutter are completely separated from the first mounting hole; replacing the cutter on the front cylinder, and reinserting the front cylinder with the cutter replaced into the first mounting hole; and (4) reinstalling the rear barrel on the front barrel, opening the gate, and pushing the cutter barrel forwards until the cutter barrel is completely inserted into the first mounting hole. The normal pressure tool changing method can reduce the space required during tool changing, namely, the tool changing can be carried out under the condition that the tool changing space is insufficient.
Description
Technical Field
The invention relates to a normal-pressure tool changing method and a normal-pressure tool changing tool of a shield machine.
Background
The cutter is the indispensable part of shield machine when tunnelling, along with the continuous tunnelling of shield machine, the cutter is also constantly wearing and tearing, in order to guarantee the high-efficient tunnelling of shield machine and construction quality, need in time change the cutter, ordinary pressure tool changing method generally need be implemented based on the tool changing frock, however, when using current ordinary pressure tool changing method and tool changing frock to carry out the tool changing, need take whole knife section of thick bamboo out from outer barrel, nevertheless because the size of partial knife section of thick bamboo is longer, and because the restriction of shield machine self structure, make the rear portion of knife section of thick bamboo tool changing space not enough, use current ordinary pressure tool changing method and tool changing frock can't follow outer barrel with the knife section of thick bamboo and all extract, promptly can't change the cutter.
Disclosure of Invention
The invention aims to provide a normal-pressure tool changing method of a shield machine, which can overcome the defect of insufficient tool changing space.
In order to achieve the purpose, the invention adopts the technical scheme that:
a normal-pressure tool changing method of a shield machine comprises a cutter, a cutter barrel and an outer barrel body fixedly arranged relative to a shield body of the shield machine, wherein the cutter is detachably arranged at the front end part of the cutter barrel, the outer barrel body is provided with a first mounting hole penetrating along the front-back direction, the cutter barrel is inserted in the first mounting hole, the outer barrel body is also provided with a flashboard used for cutting off the first mounting hole, the cutter barrel comprises a front barrel body and a rear barrel body which are connected along the front-back direction, the rear end part of the front barrel body is detachably connected with the front end part of the rear barrel body,
the normal pressure tool changing method comprises the following steps:
(1) pulling the knife cylinder from the rear of the knife cylinder to the rear, moving the knife cylinder from the front to the rear from the first mounting hole until the knife is positioned at the rear side of the gate, and the front cylinder part is positioned in the first mounting hole, and closing the gate;
(2) detaching the rear barrel from the front barrel;
(3) pulling the front cylinder backwards until the front cylinder and the cutter are completely disengaged from the first mounting hole;
(4) replacing the tool on the front cylinder and reinserting the front cylinder with the tool replaced into the first mounting hole;
(5) and remounting the rear barrel on the front barrel, opening the shutter and pushing the knife barrel forwards until the knife barrel is completely inserted into the first mounting hole.
Preferably, the rear side of outer barrel is provided with tool changing seat and tool changing hydro-cylinder, the tool changing seat is including dismantling preceding pedestal and the back pedestal of connection, the preceding tip of preceding pedestal with the connection can be dismantled to the back tip of outer barrel, the tool changing hydro-cylinder includes telescopic link and cylinder body, the end that stretches out of telescopic link connect in the back tip of back pedestal, in step (1), through the pulling of tool changing hydro-cylinder the tool changing section of thick bamboo, the cylinder body with the connection can be dismantled to the back barrel, works as during the shrink of tool changing hydro-cylinder, the cylinder body drives the tool changing section of thick bamboo moves backward.
Preferably, in the step (2), the rear cylinder and the cylinder are always connected, and the rear seat body needs to be detached from the front seat body before the rear cylinder is detached from the front cylinder.
Preferably, the shield constructs the machine and still includes the threaded rod, and can with the fixing base of connection can be dismantled to the rear end of preceding pedestal, set up the guiding hole that extends along the fore-and-aft direction on the fixing base, be provided with the fixed plate in the preceding barrel, set up the screw hole that extends along the fore-and-aft direction on the fixed plate, in step (3), the threaded rod is inserted and is established in the guiding hole, and with the screw hole cooperation, and work as when the threaded rod rotates, drive preceding barrel moves successively.
Further, in the step (3) and the step (4), the fixed seat is always connected with the front seat body, and the threaded rod is always matched with the threaded hole.
Further, in the step (5), the fixing seat is detached from the front seat body, the threaded rod is disengaged from the threaded hole, the rear seat body needs to be installed on the front seat body after the rear cylinder body is installed on the front cylinder body, the telescopic rod is connected to the rear end portion of the rear seat body, and when the tool changing cylinder extends, the tool cylinder is inserted into the first installation hole again.
Further, be provided with row's thick liquid hole on the outer barrel, it is located to arrange the thick liquid hole the flashboard rear side, in step (1), close need pass through behind the flashboard arrange the thick liquid hole discharge lie in the first mounting hole the mud of flashboard rear side.
The invention also aims to provide a tool changing tool capable of implementing the normal pressure tool changing method.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a shield constructs tool changing frock of machine, tool changing frock can implement the ordinary pressure tool changing method of any claim 1 to 7, tool changing frock includes the sword section of thick bamboo outer barrel the flashboard, the rear side of outer barrel still is provided with trades blade holder and tool changing hydro-cylinder, the tool changing seat is including dismantling preceding pedestal and the back pedestal of connection, the preceding tip of preceding pedestal with the connection can be dismantled to the back tip of outer barrel, the tool changing hydro-cylinder includes telescopic link and cylinder body, the end that stretches out of telescopic link connect in the back tip of back pedestal.
Preferably, the tool changing tool further comprises a threaded rod and a fixing seat capable of being detachably connected with the rear end portion of the front seat body, a guide hole extending in the front-rear direction is formed in the fixing seat, a fixing plate is arranged in the front cylinder body, a threaded hole extending in the front-rear direction is formed in the fixing plate, and the threaded rod is inserted in the guide hole and matched with the threaded hole.
Preferably, the tool changing tool further comprises a control oil cylinder capable of opening and closing the gate.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: in the normal-pressure tool changing method, the rear barrel and the front barrel of the sectional type tool barrel are sequentially detached from the outer barrel, the front barrel and the rear barrel are re-installed in the outer barrel in a split insertion mode after the tool is changed, the space required during tool changing is reduced, and tool changing operation can be performed even under the condition that the tool changing space is insufficient.
Drawings
Fig. 1 to 3 are exploded views of the overall structure of the tool changing tool of the present invention, wherein fig. 2 is a side view of the tool changing tool in fig. 1, and fig. 3 is a top view of the tool changing tool in fig. 1;
fig. 4 to 7 are schematic diagrams of the overall structure of the tool changing tool of the present invention, wherein fig. 5 is a side view of the tool changing tool in fig. 4, fig. 6 is a top view of the tool changing tool in fig. 4, and fig. 7 is a cross-sectional view of the tool changing tool in fig. 6 along the direction a-a;
fig. 8 to 12 are schematic structural views of the tool changing tool of the present invention in a first tool changing state, wherein fig. 9 is a side view of the tool changing tool in fig. 8, fig. 10 is a sectional view of the tool changing tool in fig. 9 along the direction B-B, fig. 11 is a top view of the tool changing tool in fig. 8, and fig. 12 is a sectional view of the tool changing tool in fig. 11 along the direction C-C;
fig. 13 to 16 are exploded views showing the tool changer of the present invention in a first tool changing state, wherein fig. 15 is a top view of the tool changer in fig. 13, and fig. 16 is a sectional view of the tool changer in fig. 15 taken along the direction D-D;
fig. 17 to 20 are exploded views of the tool changing tool of the present invention in an intermediate state between a first tool changing state and a second tool changing state, in which fig. 18 is a schematic view of the tool changing tool of fig. 17 with a part of the structure hidden, fig. 19 is a side view of the tool changing tool of fig. 18, and fig. 20 is a top view of the tool changing tool of fig. 18;
fig. 21 and 22 are exploded views illustrating the tool changing tool of the present invention in a second tool changing state, wherein fig. 22 is a top view of the tool changing tool of fig. 21;
fig. 23 to 27 are schematic diagrams of an overall structure of the tool changing tool in a second tool changing state according to the present invention, in which fig. 24 is a structural diagram of an inside of the tool changing tool in fig. 23, fig. 25 is a schematic diagram of the tool changing tool in fig. 23 with a structure of a part thereof hidden, fig. 26 is a top view of the tool changing tool in fig. 25, and fig. 27 is a sectional view of the tool changing tool in fig. 26 along the direction of E-E;
fig. 28 to 31 are schematic structural views of the tool changing tool of the present invention in a second tool changing state, and the front tool cylinder is completely pulled out from the outer cylinder, wherein fig. 29 is a schematic view of the tool changing tool in fig. 28 with a part of the structure hidden, fig. 30 is a side view of the tool changing tool in fig. 29, and fig. 31 is a top view of the tool changing tool in fig. 29;
fig. 32 to 34 are schematic structural views of a cutter cylinder and an outer cylinder in the tool changer of the present invention, wherein fig. 33 is a top view of the tool changer in fig. 32, and fig. 34 is a sectional view of the tool changer in fig. 33 along the direction F-F;
FIG. 35 is a schematic three-dimensional structure of a tool cylinder in the tool changing fixture according to the present invention;
FIG. 36 is an exploded view of the knife cartridge of FIG. 35;
fig. 37 and 38 are full sectional views of a tool cylinder in the tool changing tool of the present invention;
FIG. 39 is a cross-sectional view of the knife cylinder of FIG. 38 taken along the direction G-G;
FIG. 40 is an enlarged fragmentary view at H in FIG. 38;
FIG. 41 is an enlarged fragmentary view taken at I in FIG. 38;
FIG. 42 is a full sectional view of the front cylinder of the tool holder in the tool changing apparatus of the present invention;
FIG. 43 is an enlarged fragmentary view taken at J in FIG. 42;
FIG. 44 is a full sectional view of the rear cylinder of the tool holder in the tool changing apparatus of the present invention;
FIG. 45 is an enlarged fragmentary view at K of FIG. 44;
wherein:
1. a cutter;
2. a knife cylinder; 21. a front barrel; 211. a convex ring mounting hole; 212. a first seal groove; 213. a first fixing hole; 214. a protrusion; 215. a boss; 216. a third seal groove; 22. a rear cylinder body; 221. a second mounting hole; 222. a rear cover; 223. a flange plate; 224. a guide groove; 23. a fixing plate; 231. a threaded hole; 24. installing a convex ring; 241. a second seal groove; 242. a second fixing hole; 243. a groove; 25. a first seal ring; 26. a second seal ring; 27. a seal screw;
3. an outer cylinder; 31. a first mounting hole; 32. a shutter plate; 33. a pulp discharge port; 34. a ball valve; 35. controlling the oil cylinder;
4. changing a tool apron; 41. a front seat body; 42. a rear seat body; 421. a first seat body; 422. a second seat body; 43. a hollow interior cavity; 44. a through hole; 45. a connecting plate; 451. a second connection hole; 46. a guide projection;
5. a tool changing oil cylinder; 51. a telescopic rod; 511. a first connection hole; 52. a cylinder body;
6. a threaded rod;
7. a fixed seat; 71. and (4) a guide hole.
Detailed Description
The technical solution of the present invention is further explained with reference to the drawings and the specific embodiments.
In the following, the terms "front" and "rear" are defined with reference to the position of the tool when the tool is mounted on the tool holder.
Referring to the drawings, the tool changing tool of the shield tunneling machine comprises a tool cylinder 2 for mounting a tool 1, and an outer cylinder 3 arranged on the periphery of the outer side of the tool cylinder 2, wherein the outer cylinder 3 is fixedly arranged relative to a shield body of the shield tunneling machine, the tool cylinder 2 comprises a front cylinder 21 and a rear cylinder 22 which are detachably connected, a fixing plate 23 is arranged in the front cylinder 21, a threaded hole 231 extending in the front-rear direction is formed in the fixing plate 23, the tool 1 is detachably mounted at the front end part of the front cylinder 21, specifically, a boss 215 for mounting the tool is arranged at the front end part of the front cylinder 21, a first mounting hole 31 penetrating in the front-rear direction is formed in the outer cylinder 3, and the tool cylinder 2 can be slidably inserted in the first mounting hole 31 in the length direction.
Tool changing frock is still including setting up tool changing seat 4 and the tool changing hydro-cylinder 5 in outer barrel 3 rear side, tool changing seat 4 has preceding pedestal 41 and the back pedestal 42 that can dismantle and meet, the connection can be dismantled to the preceding tip of preceding pedestal 41 and the back tip of outer barrel 3, tool changing seat 4 has the cavity inner chamber 43 that can the holding tool section of thick bamboo 2, tool changing hydro-cylinder 5 includes telescopic link 51 and cylinder body 52, telescopic link 51 is connected in the back tip of back pedestal 42, cylinder body 52 inserts in tool section of thick bamboo 2 along the fore-and-aft direction, the connection can be dismantled to the back tip of cylinder body 52 and tool section of thick bamboo 2.
As shown in fig. 35 to 45, one of the rear end of the front cylinder 21 and the front end of the rear cylinder 22 is fixedly provided with a mounting collar 24, the other is provided with a collar mounting hole 211 capable of being matched with the mounting collar 24, the front cylinder 21 and the rear cylinder 22 are connected in a sealing manner along the length direction, the mounting collar 24 is inserted into the collar mounting hole 211, and the outer peripheral portion of the mounting collar 24 is arranged in a sealing manner between the collar mounting hole 211 and the mounting collar 24. The outer diameters of the front cylinder 21 and the rear cylinder 22 are equal and the center lines coincide, and the outer diameter of the mounting convex ring 24 is smaller than that of the front cylinder 21/the rear cylinder 22, as shown in fig. 37 and 38.
In this embodiment, referring to fig. 44 and 45, the mounting convex ring 24 is disposed at the front end of the rear cylinder 22, the convex ring mounting hole 211 is located at the rear end of the front cylinder 21, the outer diameter of the mounting convex ring 24 is smaller than that of the rear cylinder 22, in this embodiment, the front end of the rear cylinder 22 has a bearing hole for the mounting convex ring 24 to be inserted, the front end of the rear cylinder 22 and the outer circumference of the mounting convex ring 24 are fixedly connected by welding, the rear end of the mounting convex ring 24 and the inner circumference of the rear cylinder 22 are fixedly connected by welding, in other embodiments, the mounting convex ring 24 and the rear cylinder 22 may be integrally disposed, and this is not particularly limited.
Referring to fig. 38 and 40, a first sealing ring 25 is disposed between the front cylinder 21 and the rear cylinder 22, a first sealing groove 212 capable of accommodating the first sealing ring 25 is disposed at the rear end of the front cylinder 21, the first sealing ring 25 is sleeved on the mounting convex ring 24, and the first sealing ring 25 abuts against the front end surface of the rear cylinder 22, so that external slurry can be prevented from entering the inside of the knife cylinder 2. Still be provided with second sealing washer 26 between preceding barrel 21 and the installation bulge loop 24, set up the second seal groove 241 that can hold second sealing washer 26 on the outside week portion of installation bulge loop 24, second sealing washer 26 supports and leans on the inboard week portion of bulge loop mounting hole 211, and second sealing washer 26 is located the front side of first sealing washer 25, and like this, first sealing washer 25 and second sealing washer 26 can form double seal, and sealed effect is better.
Referring to fig. 38, 40, 42 and 44, a first fixing hole 213 extending in the radial direction is formed on the rear end portion of the front cylinder 21, and a second fixing hole 242 extending in the radial direction is formed on the mounting convex ring 24, wherein the first fixing hole 213 is a countersunk hole, the second fixing hole 242 is a through hole with a thread, and the first fixing hole 213 and the second fixing hole 242 are fixedly connected by a sealing screw, that is, when the knife cylinder 2 is inserted into the first mounting hole 31, the sealing screw 27 does not interfere with the insertion of the knife cylinder, in this embodiment, the sealing screw 27 is located between the first sealing ring 25 and the second sealing ring 26.
Referring to fig. 36, the inner circumference of the collar mounting hole 211 is provided with a protrusion 214 extending along the length direction of the knife cylinder, and the end of the mounting collar 24 is provided with a groove 243 into which the protrusion 214 is fittingly inserted, so that when the front cylinder 21 and the rear cylinder 22 are mounted, the protrusion 214 and the groove 243 are fittingly engaged, so that the first fixing hole 213 and the second fixing hole 242 can be quickly aligned, thereby facilitating quick mounting, enhancing the torsional strength, and protecting the seal screw 27 to a certain extent.
Referring to fig. 38 and 41, the front end of the front cylinder 21 is further provided with a third seal groove 216, so that the cutter cylinder 2 and the first mounting hole 31 can form a tight fit, and when the shield tunneling machine is in normal operation or during cutter changing, mud can be prevented from leaking to the rear of the cutter cylinder 2 through the first mounting hole 31.
The rear cylinder 22 has a second mounting hole 221 for inserting the cylinder 52, and the cylinder 52 of the tool changing cylinder 5 is partially/completely located in the second mounting hole 221, so that the cylinder 52 does not occupy the space at the rear side of the tool cylinder 2, in this embodiment, a rear cover 222 capable of sealing the second mounting hole 221 is further disposed on the rear end portion of the rear cylinder 22, as shown in fig. 1 to 3 and 32 to 34.
Referring to fig. 21 to 34, the tool changing tool further includes a threaded rod 6 capable of engaging with the threaded hole 231, and a fixing seat 7 capable of being detachably connected to the rear end of the front seat body 41, a guide hole 71 is formed in the fixing seat 7, the threaded rod 6 is inserted into the guide hole 71 and engages with the threaded hole 231, and the threaded rod 6 can rotate along its axis and can drive the front cylinder 21 to move in the front-back direction when rotating.
The tool changing tool has a first tool changing state and a second tool changing state, when the tool changing tool is in the first tool changing state, the rear seat body 42 is connected with the front seat body 41, the telescopic rod 51 retracts relative to the cylinder body 52, the rear cylinder body 22 is positioned behind the first mounting hole 31, and the front cylinder body 21 is partially positioned in the first mounting hole 31; when the tool changing tool is in a second tool changing state, the rear barrel 22 is separated from the front barrel 21, the fixed seat 7 is connected with the front seat body 41, and the threaded rod 6 is matched with the threaded hole 231.
Referring to fig. 7, 10 and 12, the rear end of the rear seat 42 is provided with a through hole 44 through which the extending end of the telescopic rod 51 extends, the through hole 44 extends in the front-rear direction, the extending end of the telescopic rod 51 has a first connecting hole 511, the rear end of the rear seat 42 is provided with a connecting plate 45, the connecting plate 45 is provided with a second connecting hole 451 extending in the thickness direction of the connecting plate 45, and the first connecting hole 511 and the second connecting hole 451 are connected by a bolt.
Referring to fig. 1 to 3 and 13 to 15, the rear seat 42 has a first seat 421 and a second seat 422 detachably connected along the radial direction of the tool cylinder 2, so that the rear seat 42 can be easily installed on/removed from the front seat 41 along the radial direction during tool changing, thereby avoiding the problem of insufficient space in the axial direction of the tool cylinder 2. Wherein, all be provided with connecting plate 45 on first pedestal 421 and the second pedestal 422, two sets of connecting plate 45 parallel arrangement have the interval between two sets of connecting plates 45, and the end that stretches out of telescopic link 51 is located between two sets of connecting plates 45, when taking first pedestal 421 and second pedestal 422 off from the front pedestal 41 promptly, can follow back pedestal 42 with telescopic link 51 simultaneously and pull apart, and it is more convenient to operate. The rear end of the first seat 421 and the rear end of the second seat 422 are both provided with arc-shaped slots (not shown in the figure), and when the first seat 421 and the second seat 422 are connected, the two sets of arc-shaped slots form the through hole 44.
Referring to fig. 1, 13, 23, 25, 28, 29, 35 and 36, the tool changer seat 4 is further provided with a guide protrusion 46 extending in the front-back direction, the guide protrusion 46 is located on the inner peripheral portion of the tool changer seat 4, the rear end portion of the rear cylinder 22 is fixedly provided with a flange plate 223, the flange plate 223 is provided with a plurality of sets of guide grooves 224 extending in the length direction of the tool cylinder, the guide protrusion 46 can be matched with the guide grooves 224, and the guide and limit functions are achieved in the tool changing process.
Still be provided with the flashboard 32 that can cut off first mounting hole 31 on the outer barrel 3, flashboard 32 radially extends along outer barrel 3, the tool changing frock still includes the control hydro-cylinder 35 that can control flashboard 32 and open/close, in this embodiment, flashboard 32 is provided with two sets ofly, the central line symmetric distribution of the relative first mounting hole 31 of two sets of flashboards 32, when two sets of flashboards 32 are along radially being close to the motion each other, flashboard 32 is closed, when keeping away from the motion each other, the flashboard is opened, control hydro-cylinder 35 is provided with a set of clamp plate (not shown in the figure) respectively along length direction's both ends, the clamp plate is pressed on flashboard 32, when control hydro-cylinder 35 contracts, thereby the flashboard 32 is closed in the clamp plate drive flash.
Still be provided with the thick liquid hole of arranging along outer barrel 3 radial extension on the outer barrel 3, arrange thick liquid hole and first mounting hole 31 intercommunication, arrange thick liquid hole and tool changing seat 4 and lie in the same one side of flashboard 32, still be provided with the ball valve 34 that can open/close row thick liquid hole 33 on the outer barrel 3, when flashboard 32 closed, open ball valve 34 and can arrange the mud that lies in the flashboard 32 rear side in the first mounting hole 31, when guaranteeing that knife section of thick bamboo 2 is taken first mounting hole 31 out, mud can not flow from first mounting hole 31.
The normal pressure tool changing method comprises the following specific steps:
(1) detaching the rear cover 222 from the knife cylinder 2, connecting the cylinder body 52 of the knife exchange cylinder 5 to the rear cylinder body 22, installing the front seat body 41 of the knife exchange seat 4 to the rear end portion of the outer cylinder body 3, extending the telescopic rod 51 from the cylinder body 52, connecting the extending end of the telescopic rod 51 to the rear end portion of the rear seat body 42, and installing the rear seat body 42 to the rear end portion of the front seat body 41, specifically referring to fig. 1 to 7, retracting the knife exchange cylinder 5, moving the cylinder body 52 toward the extending end of the telescopic rod 51 until the telescopic rod 51 is completely retracted into the cylinder body 52, the cylinder body 52 driving the knife cylinder 2 to move toward the knife exchange seat 4, i.e., move backward, closing the shutter 32, and opening the ball valve 34, discharging the slurry in the first installation hole 31 located at the rear side of the shutter 32, specifically referring to fig. 8 to 12;
(2) separating the telescopic rod 51 from the rear seat body 42, detaching the rear seat body 42 from the front seat body 41, separating the rear cylinder 22 from the front cylinder 21, and detaching the tool changing cylinder 5 and the rear cylinder 22 together, wherein the rear cylinder 22 and the cylinder body 52 are always connected in the process, as shown in fig. 13 to 20;
(3) mounting the fixed seat 7 to the rear end of the front seat body 41, inserting the threaded rod 6 into the guide hole 71 and matching the threaded rod 6 with the threaded hole 231, rotating the threaded rod 6 to move the front cylinder 21 backwards along the first mounting hole 31 until the front cylinder 21 is removed from the first mounting hole 31, wherein in the process, the fixed seat 7 is always connected with the front seat body 41, and the threaded rod 6 is always matched with the threaded hole, which is specifically shown in fig. 21 to 31;
(4) detaching the front seat body 41 from the outer cylinder body 3, pulling the front seat body 41, the front cylinder body 21 and the cutter 1 out of the outer cylinder body 3, replacing the cutter 1, reinstalling the front seat body 41 on the outer cylinder body 3 after replacing the cutter 1, and reversely rotating the threaded rod 6 to reinsert the front cylinder body 21 into the first installation hole 31;
(5) the threaded rod 6 is disengaged from the threaded hole 231, the fixing seat 7 is detached from the front seat body 41, the ball valve 34 is closed, the rear cylinder body 22 is remounted to the rear end part of the front cylinder body 21, the rear cylinder body 22 is remounted to the front cylinder body 21, the telescopic rod 51 is connected with the rear seat body 42, the telescopic rod 51 of the tool changing cylinder 5 is extended relative to the cylinder body 52 after the flashboard 32 is opened until the tool cylinder 2 is completely pushed into the first mounting hole 31, the telescopic rod 51 is separated from the rear seat body 42, the rear seat body 42 is detached from the front seat body 41, the front seat body 41 is detached from the outer cylinder body 3, and the tool changing cylinder 5 is detached from the rear cylinder body 22.
In summary, in the normal pressure tool changing method of the present invention, the rear cylinder 22 and the front cylinder 21 of the sectional type tool cylinder are sequentially detached from the outer cylinder 3, and after the tool 1 is replaced, the front cylinder 21 and the rear cylinder 22 are re-installed in the outer cylinder 3 in a split insertion manner, so that the space required for tool changing is reduced, that is, the tool changing operation can be performed even when the tool changing space is insufficient; and the tool changing tool adopts the tool changing oil cylinder 5 as a driving mechanism for pulling the tool cylinder 2, so that the stability is better, the safety is higher, and the efficiency is greatly improved compared with the traditional tool changing tool.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. The utility model provides a shield constructs ordinary pressure tool changing method of machine, the shield constructs the machine includes cutter, a sword section of thick bamboo, and relative the outer barrel of the shield body fixed setting of shield constructs the machine, cutter detachably install in the preceding tip of a sword section of thick bamboo, set up the first mounting hole that runs through along the fore-and-aft direction on the outer barrel, a sword section of thick bamboo is inserted and is established in the first mounting hole, still have on the outer barrel and be used for cutting off the flashboard of first mounting hole, its characterized in that: the knife cylinder comprises a front cylinder body and a rear cylinder body which are connected along the front-back direction, the rear end part of the front cylinder body is detachably connected with the front end part of the rear cylinder body,
the normal pressure tool changing method comprises the following steps:
(1) pulling the knife cylinder from the rear of the knife cylinder to the rear, moving the knife cylinder from the front to the rear from the first mounting hole until the knife is positioned at the rear side of the gate, and the front cylinder part is positioned in the first mounting hole, and closing the gate;
(2) detaching the rear barrel from the front barrel;
(3) pulling the front cylinder backwards until the front cylinder and the cutter are completely disengaged from the first mounting hole;
(4) replacing the tool on the front cylinder and reinserting the front cylinder with the tool replaced into the first mounting hole;
(5) and remounting the rear barrel on the front barrel, opening the shutter and pushing the knife barrel forwards until the knife barrel is completely inserted into the first mounting hole.
2. The normal pressure tool changing method of the shield tunneling machine according to claim 1, characterized in that: the rear side of outer barrel is provided with tool changing seat and tool changing hydro-cylinder, the tool changing seat is including dismantling preceding pedestal and the back pedestal of connection, the preceding tip of preceding pedestal with the connection can be dismantled to the back tip of outer barrel, the tool changing hydro-cylinder includes telescopic link and cylinder body, the end that stretches out of telescopic link connect in the back tip of back pedestal, in step (1), through the tool changing hydro-cylinder pulling the tool cylinder, the cylinder body with the connection can be dismantled to the back barrel, works as during the shrink of tool changing hydro-cylinder, the cylinder body drives the tool cylinder moves backward.
3. The normal pressure tool changing method of the shield tunneling machine according to claim 2, characterized in that: in the step (2), the rear cylinder and the cylinder are always connected, and the rear seat body needs to be detached from the front seat body before the rear cylinder is detached from the front cylinder.
4. The normal pressure tool changing method of the shield tunneling machine according to claim 2, characterized in that: the shield constructs machine still includes the threaded rod, and can with the fixing base of connection can be dismantled to the rear end of preceding pedestal, set up the guiding hole that extends along the fore-and-aft direction on the fixing base, be provided with the fixed plate in the preceding barrel, set up the screw hole that extends along the fore-and-aft direction on the fixed plate, in step (3), the threaded rod is inserted and is established in the guiding hole, and with the screw hole cooperation, and work as when the threaded rod rotates, drive preceding barrel is motion successively.
5. The normal pressure tool changing method of the shield tunneling machine according to claim 4, characterized in that: in the step (3) and the step (4), the fixed seat is always connected with the front seat body, and the threaded rod is always matched with the threaded hole.
6. The normal pressure tool changing method of the shield tunneling machine according to claim 4, characterized in that: in the step (5), the fixing seat is detached from the front seat body, the threaded rod is disengaged from the threaded hole, the rear seat body needs to be installed on the front seat body after the rear cylinder body is installed on the front cylinder body, the telescopic rod is connected to the rear end portion of the rear seat body, and when the tool changing cylinder extends, the tool cylinder is inserted into the first installation hole again.
7. The normal pressure tool changing method of the shield tunneling machine according to claim 1, characterized in that: be provided with row's thick liquid hole on the outer barrel, it is located to arrange the thick liquid hole the flashboard rear side, in step (1), close need pass through behind the flashboard arrange the thick liquid hole discharge lie in the first mounting hole the mud of flashboard rear side.
8. A tool changing tool of a shield machine, which can implement the normal pressure tool changing method of any one of claims 1 to 7, and is characterized in that: the tool changing tool comprises a tool cylinder, an outer cylinder, a flashboard, wherein a tool changing seat and a tool changing oil cylinder are further arranged on the rear side of the outer cylinder, the tool changing seat comprises a front seat body and a rear seat body which can be detachably connected, the front end portion of the front seat body and the rear end portion of the outer cylinder body can be detachably connected, the tool changing oil cylinder comprises a telescopic rod and a cylinder body, and the extending end of the telescopic rod is connected with the rear end portion of the rear seat body.
9. The tool changing tool of the shield tunneling machine according to claim 8, characterized in that: the tool changing tool further comprises a threaded rod and a fixing seat which can be detachably connected with the rear end portion of the front seat body, a guide hole extending in the front-back direction is formed in the fixing seat, a fixing plate is arranged in the front cylinder body, a threaded hole extending in the front-back direction is formed in the fixing plate, and the threaded rod is inserted in the guide hole and matched with the threaded hole.
10. The tool changing tool of the shield tunneling machine according to claim 8, characterized in that: the tool changing tool further comprises a control oil cylinder capable of opening and closing the flashboard.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110752403.1A CN113389560B (en) | 2021-07-02 | 2021-07-02 | Normal-pressure tool changing method and tool changing tool of shield machine |
| PCT/CN2022/100336 WO2023273974A1 (en) | 2021-07-02 | 2022-06-22 | Normal pressure cutter replacement method and cutter replacement tool for tunnel boring machine |
| JP2022576117A JP7430826B2 (en) | 2021-07-02 | 2022-06-22 | How to replace the cutter of a shield machine under normal pressure and cutter replacement jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110752403.1A CN113389560B (en) | 2021-07-02 | 2021-07-02 | Normal-pressure tool changing method and tool changing tool of shield machine |
Publications (2)
| Publication Number | Publication Date |
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| CN113389560A true CN113389560A (en) | 2021-09-14 |
| CN113389560B CN113389560B (en) | 2022-07-22 |
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| CN202110752403.1A Active CN113389560B (en) | 2021-07-02 | 2021-07-02 | Normal-pressure tool changing method and tool changing tool of shield machine |
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| Country | Link |
|---|---|
| JP (1) | JP7430826B2 (en) |
| CN (1) | CN113389560B (en) |
| WO (1) | WO2023273974A1 (en) |
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| CN114033401A (en) * | 2021-11-10 | 2022-02-11 | 中铁十八局集团第四工程有限公司 | Underground shield constructs engineering not precipitation ordinary pressure and opens storehouse toolchanger |
| CN114607401A (en) * | 2022-03-25 | 2022-06-10 | 英诺威阀业有限公司 | Double-double tool changing gate |
| WO2023273974A1 (en) * | 2021-07-02 | 2023-01-05 | 中交天和机械设备制造有限公司 | Normal pressure cutter replacement method and cutter replacement tool for tunnel boring machine |
| CN118407771A (en) * | 2024-07-02 | 2024-07-30 | 杭州华东地下工程智能装备研究院有限公司 | Safe and efficient cutter changing device and method for heading machine |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP7430826B2 (en) | 2024-02-13 |
| JP2023535260A (en) | 2023-08-17 |
| CN113389560B (en) | 2022-07-22 |
| WO2023273974A1 (en) | 2023-01-05 |
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