CN104526297A - Auxiliary cutter replacing device for shield tunneling machine cutter in tunnel - Google Patents

Auxiliary cutter replacing device for shield tunneling machine cutter in tunnel Download PDF

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Publication number
CN104526297A
CN104526297A CN201410730342.9A CN201410730342A CN104526297A CN 104526297 A CN104526297 A CN 104526297A CN 201410730342 A CN201410730342 A CN 201410730342A CN 104526297 A CN104526297 A CN 104526297A
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CN
China
Prior art keywords
cutter
tunnel
guide
executive component
hinged
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201410730342.9A
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Chinese (zh)
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CN104526297B (en
Inventor
苏延奇
徐昊朗
韩真
赵小庆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
XGMG KAIGONG HEAVY INDUSTRY NANJING Co Ltd
Original Assignee
XGMG KAIGONG HEAVY INDUSTRY NANJING Co Ltd
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Priority to CN201410730342.9A priority Critical patent/CN104526297B/en
Publication of CN104526297A publication Critical patent/CN104526297A/en
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Publication of CN104526297B publication Critical patent/CN104526297B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes

Abstract

The invention discloses an auxiliary cutter replacing device for a shield tunneling machine cutter in a tunnel. The auxiliary cutter replacing device includes a sealed cabin, a telescoping mechanism and a cutter clamping fixture, wherein the telescoping mechanism includes a guide sleeve, a first execution element an a guide shaft; the first execution element and the guide shaft are both positioned in the hollow cavity of the guide sleeve, the left end of the first execution element is hinged to the end cover of the guide sleeve while the right end of the first execution element is hinged with the left end of the guide shaft, and a second execution element is aslant hinged to the right end of the guide shaft; the cutter clamping fixture includes a hinging seat and a clamping assembly connected with each other; the guide sleeve and the guide shaft are both arranged in the sealed cabin in a penetrating manner, and the right end of the guide shaft and the second execution element are both hinged to the hinging seat. The auxiliary cutter replacing device for the shield tunneling machine cutter in the tunnel provided by the invention is simple in structure, convenient to use, being capable of reducing working strength when a worker replaces the cutter and improving work efficiency, also being capable of greatly reducing danger coefficient of replacing the cuter of the shield tunneling machine under severe environment.

Description

In a kind of tunnel, cutter head of shield machine assists tool changing device
Technical field
The present invention relates to shield machine technical field, particularly relate to cutter head of shield machine in a kind of tunnel and assist tool changing device.
Background technology
In shield-tunneling construction, during tunneling construction due to long distance, cutter can produce excessive wear, for preventing destroying cutter head structure because of the excessive wear of cutter, not replacing in time, thus affect project progress or produce security incident, the inspection that being just necessary this time opens the cabin carries out cutter and replacing.When face self-stability is higher, normal pressure can be carried out by modes such as grouting and reinforcing and maintaining pile reinforcings and open the cabin.But when cutterhead position is just closed on important building or run into the poor stratum of self-stable ability sometimes, normal pressure tool changing of opening the cabin easily causes face to cave in even surface collapse, and security risk is very big, now needs to carry out tool changing of opening the cabin with pressure.
But due to narrow space in the native storehouse after cutter head of shield machine, humiture is comparatively large, the environment very severe when carrying out tool changing operation, dangerous when causing tool changing, tool changing with pressure has dangerous work especially.Therefore be necessary to develop a kind of can underworker carrying out opening a position the device of tool changing, to reduce working strength during workman's tool changing, increase work efficiency, reduce danger coefficient.
Summary of the invention
The technical problem to be solved in the present invention is, large and the above-mentioned defect had a big risk of working strength for the tool changing of opening the cabin with pressure of cutter head of shield machine in prior art, provides that a kind of structure is simple, easy to use, working strength when can reduce workman's tool changing, to increase work efficiency and in the tunnel that greatly can reduce danger coefficient, cutter head of shield machine assists tool changing device.
The technical solution adopted for the present invention to solve the technical problems is as follows:
In a kind of tunnel, cutter head of shield machine assists tool changing device, comprises sealed compartment, telescoping mechanism and cutter clamping tool, and telescoping mechanism is placed in sealed compartment inside and is connected with cutter clamping tool;
The leading flank of sealed compartment and trailing flank are respectively equipped with early gate and late gate;
Telescoping mechanism comprises fairlead, the first executive component and the axis of guide; First executive component and the axis of guide are all placed in the hollow cavity of fairlead, and the first executive component left end is with to be arranged on the fairlead end cap of fairlead left end hinged, and its right-hand member is hinged with axis of guide left end, and the inclination of axis of guide right-hand member is hinged with the second executive component;
Cutter clamping tool comprises the hinged seat and clamping assembly that are connected to each other;
Fairlead and the axis of guide are all located in sealed compartment inside, and axis of guide right-hand member and the second executive component are all formed hinged with hinged seat.
In tunnel of the present invention, cutter head of shield machine assists tool changing device to comprise sealed compartment, telescoping mechanism and cutter clamping tool, and this telescoping mechanism is placed in sealed compartment inside and is connected with cutter clamping tool; Wherein, telescoping mechanism comprises fairlead, the first executive component and the axis of guide, first executive component and the axis of guide are all placed in the hollow cavity of fairlead, and the first executive component left end is hinged with the fairlead end cap being arranged on fairlead left end, its right-hand member and axis of guide left end hinged, and axis of guide right-hand member tilt be hinged with the second executive component; Cutter clamping tool comprises hinged seat and clamping assembly; Fairlead and the axis of guide are all located in sealed compartment inside, and axis of guide right-hand member and the second executive component are all formed hinged with hinged seat, and structure is very simple.
The work flow utilizing cutter head of shield machine in tunnel of the present invention to assist tool changing device to carry out auxiliary tool changing with pressure is: shield machine stops driving, tool changing operation group enters assigned address, earth sandstone etc. around wearing and tearing cutter is cleared up, now the early gate of sealed compartment and late gate are all closed, telescoping mechanism shrinks, and telescoping mechanism and cutter clamping tool are all placed in sealed compartment; Carrying out pressurization to sealed compartment makes pressure in sealed compartment consistent with pressure in native storehouse; After cleaning out around wearing and tearing cutter, cutterhead is turned to the correspondence position of telescoping mechanism, open early gate, telescoping mechanism extend out to wearing and tearing tool position, tool changing personnel dismantle the cutter that worn and torn, and the cutter that weares and teares is clamped in the clamping assembly of cutter clamping tool, in telescoping mechanism retraction sealed compartment, closes early gate; Personnel open late gate out of my cabin, from clamping assembly, take off the cutter that weares and teares, and are clamped in by new cutter in clamping assembly, close late gate, and to being forced in sealed compartment in sealed compartment and equipressure in native storehouse; Tool changing personnel open sealed compartment, and control telescoping mechanism and extend out to correct position, tool changing personnel tighten new cutter, and now, tool changing work completes, easy to use.It can thus be appreciated that, compared with tool changing step in prior art, working strength when utilizing cutter head of shield machine in tunnel of the present invention to assist tool changing device can not only reduce workman's tool changing, to increase work efficiency, but also the danger coefficient of shield machine tool changing under greatly reducing adverse circumstances.
Improve as to the one of technical scheme of the present invention, early gate and late gate lay respectively at axially two side positions of fairlead and the axis of guide.Such design facilitates extravehicular operation personnel to be easy to open early gate and late gate, and can not interfere with telescoping mechanism, has further facilitated cutter head of shield machine in described tunnel and has assisted the use of tool changing device.
Improve as to the one of technical scheme of the present invention, the first executive component is telescopic oil cylinder.First executive component is chosen as telescopic oil cylinder with thrust output and speed, thus realizes the reciprocating motion of the first executive component, namely eliminate deceleration device, and there is no drive gap, stable movement.
Improve as to the one of technical scheme of the present invention, the second executive component is oscillating oil cylinder.Second executive component is chosen as oscillating oil cylinder with Driving Torque and angular speed, in very little space, has gathered very high moment of torsion, and conveniently accurately control.
Improve as to the one of technical scheme of the present invention, hinged seat comprises mounting body, left articulated slab and right articulated slab, and left articulated slab and right articulated slab are separately positioned on the left and right sides on mounting body top;
Clamping assembly is connected with left articulated slab and right articulated slab respectively by axle.
The setting of above-mentioned left articulated slab and right articulated slab, not only facilitates the assembling of clamping assembly and hinged seat, and can also ensure the installation strength clamping assembly and hinged seat to a great extent.
Improve as to the one of technical scheme of the present invention, outside left articulated slab or right articulated slab, be provided with reinforcement.The reinforcement of left articulated slab or right articulated slab arranged outside, contributes to the intensity strengthening left articulated slab or right articulated slab.
Improve as to the one of technical scheme of the present invention, clamping assembly comprises front clamp block and rear clamp, and front clamp block bottom is connected with rear clamp lower rotational, and is connected by the 3rd executive component bottom front clamp block with bottom rear clamp.
This clamping assembly is in " scissors " shape, and in this clamping assembly, front clamp block is connected with rear clamp lower rotational, facilitate opening and conjunction between front clamp block and rear clamp, and hinged by the 3rd executive component bottom the two, such be designed to front clamp block and opening of rear clamp provides power support with conjunction.
Improve as to the one of technical scheme of the present invention, the 3rd executive component is clamping cylinder.
In addition, in technical scheme of the present invention, to be allly not specifically noted, all by adopting the conventional means in this area to realize the technical program.
Therefore, in tunnel provided by the invention, cutter head of shield machine assists tool changing device structure simple, easy to use, can not only reduce working strength during workman's tool changing, increase work efficiency, and greatly can also reduce the danger coefficient of shield machine tool changing under adverse circumstances.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation that in tunnel of the present invention, cutter head of shield machine assists tool changing device;
Fig. 2 is the axonometric drawing of telescoping mechanism and cutter clamping tool;
Fig. 3 is the structural representation of telescoping mechanism;
Fig. 4 is the structural representation of cutter clamping tool;
Fig. 5 is the installation diagram of cutter clamping tool and shield cutter;
Now by as follows for the label declaration in accompanying drawing: 1 is sealed compartment, 1.1 is late gate, and 2 is fairlead, 3 is the first executive component, and 4 is the axis of guide, and 5 is fairlead end cap, 6 is the second executive component, and 7 is hinged seat, and 7.1 is mounting body, 7.2 is left articulated slab, and 7.3 is right articulated slab, and 7.4 is through hole, 8 is clamping assembly, 8.1 is front clamp block, and 8.2 is rear clamp, and 9 is axle, 10 is reinforcement, 11 is the 3rd executive component, and 12 is sleeve, and 13 is hinged installing plate, 14 is connector, 15 is terminal pad, and 16 is bolt, and 17 is shield cutter.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In present pre-ferred embodiments, in a kind of tunnel, cutter head of shield machine assists tool changing device, as shown in Figure 1, comprise sealed compartment 1, telescoping mechanism and cutter clamping tool, this telescoping mechanism is placed in sealed compartment 1 inside and is connected with cutter clamping tool, and the leading flank in sealing cabin 1 and trailing flank are respectively equipped with early gate (not shown) and late gate 1.1.
As shown in Figures 2 and 3, above-mentioned telescoping mechanism comprises fairlead 2, first executive component 3 and the axis of guide 4; This first executive component 3 and the axis of guide 4 are all placed in the hollow cavity of fairlead 2, and the first executive component 3 left end is hinged with the fairlead end cap 5 being welded on fairlead 2 left end, its right-hand member and the axis of guide 4 left end hinged, and the axis of guide 4 right-hand member by connector 14 tilt be hinged with the second executive component 6.
As shown in Figure 4 and Figure 5, above-mentioned cutter clamping tool comprises the hinged seat 7 and clamping assembly 8 that are connected to each other; Wherein, this hinged seat 7 comprises mounting body 7.1, left articulated slab 7.2 and right articulated slab 7.3, reinforcement 10 is provided with outside this left articulated slab 7.2 or right articulated slab 7.3, and this left articulated slab 7.2 and right articulated slab 7.3 are separately positioned on the left and right sides on mounting body 7.1 top, and this mounting body 7.1 center is provided with through hole, to alleviate the weight of hinged seat 7; This clamping assembly 8 comprises front clamp block 8.1 and rear clamp 8.2, this front clamp block 8.1 bottom and rear clamp 8.2 bottom are rotationally connected by axle 9, this axle 9 outer surface is arranged with sleeve 12 and its two ends are connected with above-mentioned left articulated slab 7.2 and right articulated slab 7.3 respectively, is connected bottom this front clamp block 8.1 with bottom rear clamp 8.2 by the 3rd executive component 11.
It is inner that above-mentioned fairlead 2 and the axis of guide 4 are all located in sealed compartment 1, again as shown in Figures 2 and 3, this fairlead 2 outer surface is arranged with terminal pad 15, this terminal pad 15 passes through radially equally distributed multiple bolt 16 and removably connects with sealed compartment 1, and the axis of guide 4 right-hand member and the second executive component 6 are all formed hinged by hinged installing plate 13 with mounting body 7.1.
In the present embodiment, above-mentioned early gate and late gate 1.1 lay respectively at axially two side positions of fairlead 2 and the axis of guide 4.
Above-mentioned first executive component 3, second executive component 6 and the 3rd executive component 11 are respectively telescopic oil cylinder, oscillating oil cylinder and clamping cylinder.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.

Claims (8)

1. in tunnel, cutter head of shield machine assists a tool changing device, it is characterized in that, comprises sealed compartment (1), telescoping mechanism and cutter clamping tool, and described telescoping mechanism is placed in described sealed compartment (1) inside and is connected with described cutter clamping tool;
The leading flank of described sealed compartment (1) and trailing flank are respectively equipped with early gate and late gate (1.1);
Described telescoping mechanism comprises fairlead (2), the first executive component (3) and the axis of guide (4); Described first executive component (3) and the axis of guide (4) are all placed in the hollow cavity of described fairlead (2), and described first executive component (3) left end is hinged with the fairlead end cap (5) being arranged on fairlead (2) left end, its right-hand member and the described axis of guide (4) left end hinged, and the described axis of guide (4) right-hand member tilt be hinged with the second executive component (6);
Described cutter clamping tool comprises the hinged seat (7) and clamping assembly (8) that are connected to each other;
It is inner that described fairlead (2) and the axis of guide (4) are all located in described sealed compartment (1), and the described axis of guide (4) right-hand member and the second executive component (6) are all formed hinged with described hinged seat (7).
2. in tunnel according to claim 1, cutter head of shield machine assists tool changing device, it is characterized in that, described early gate and late gate (1.1) lay respectively at axially two side positions of described fairlead (2) and the axis of guide (4).
3. in tunnel according to claim 1, cutter head of shield machine assists tool changing device, it is characterized in that, described first executive component (3) is telescopic oil cylinder.
4. in tunnel according to claim 1, cutter head of shield machine assists tool changing device, it is characterized in that, described second executive component (6) is oscillating oil cylinder.
5. in tunnel according to claim 1, cutter head of shield machine assists tool changing device, it is characterized in that, described hinged seat (7) comprises mounting body (7.1), left articulated slab (7.2) and right articulated slab (7.3), and described left articulated slab (7.2) and right articulated slab (7.3) are separately positioned on the left and right sides on described mounting body (7.1) top;
Described clamping assembly (8) is connected with described left articulated slab (7.2) and right articulated slab (7.3) respectively by axle (9).
6. in tunnel according to claim 5, cutter head of shield machine assists tool changing device, it is characterized in that, described left articulated slab (7.2) or right articulated slab (7.3) outside are provided with reinforcement (10).
7. cutter head of shield machine assists tool changing device in tunnel according to claim 1 or 5, it is characterized in that, described clamping assembly (8) comprises front clamp block (8.1) and rear clamp (8.2), described front clamp block (8.1) bottom is connected with rear clamp (8.2) lower rotational, and described front clamp block (8.1) bottom is connected by the 3rd executive component (11) with rear clamp (8.2) bottom.
8. in tunnel according to claim 7, cutter head of shield machine assists tool changing device, it is characterized in that, described 3rd executive component (11) is clamping cylinder.
CN201410730342.9A 2014-12-05 2014-12-05 Auxiliary cutter replacing device for shield tunneling machine cutter in tunnel Active CN104526297B (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105781563A (en) * 2016-03-22 2016-07-20 东北大学 Auxiliary tool changing device of slurry balance shield tunneling machine and application method of auxiliary tool changing device
CN105773596A (en) * 2016-03-28 2016-07-20 东北大学 Module for splicing tool changing robot mechanical arms of shield tunneling machine
CN105855849A (en) * 2016-04-14 2016-08-17 东北大学 Single-hobbing-cutter changing manipulator of shield tunneling machine
CN106640102A (en) * 2016-12-20 2017-05-10 上海隧道工程有限公司 Constant pressure replacement device of cutterhead periphery hob and replacement method thereof
CN106863341A (en) * 2017-02-14 2017-06-20 东北大学 A kind of shield machine disk cutter tool-changing mechanical arm and its application method
CN107461203A (en) * 2017-06-26 2017-12-12 北京圣龙博睿科技有限公司 A kind of shield machine automatic tool changer
WO2020093590A1 (en) * 2018-11-08 2020-05-14 大连理工大学 Full-section tunnel boring machine cutter replacing robot and cutter system matched with same

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0775981A (en) * 1993-07-13 1995-03-20 Komatsu Ltd Self-moving manipulator
CN101509381A (en) * 2008-12-24 2009-08-19 中铁隧道集团有限公司 Composite shield structure suitable for bad ground construction
CN201960568U (en) * 2010-12-10 2011-09-07 郑州新大方重工科技有限公司 Reversible mechanical paws
CN102490171A (en) * 2011-11-22 2012-06-13 中国人民解放军总装备部军械技术研究所 Robot for disposing dangerous goods and ammunition
CN203357446U (en) * 2013-07-12 2013-12-25 中国石油大学(华东) Drill rod handling mechanical arm
CN204397269U (en) * 2014-12-05 2015-06-17 徐工集团凯宫重工南京有限公司 In a kind of tunnel, cutter head of shield machine assists tool changing device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0775981A (en) * 1993-07-13 1995-03-20 Komatsu Ltd Self-moving manipulator
CN101509381A (en) * 2008-12-24 2009-08-19 中铁隧道集团有限公司 Composite shield structure suitable for bad ground construction
CN201960568U (en) * 2010-12-10 2011-09-07 郑州新大方重工科技有限公司 Reversible mechanical paws
CN102490171A (en) * 2011-11-22 2012-06-13 中国人民解放军总装备部军械技术研究所 Robot for disposing dangerous goods and ammunition
CN203357446U (en) * 2013-07-12 2013-12-25 中国石油大学(华东) Drill rod handling mechanical arm
CN204397269U (en) * 2014-12-05 2015-06-17 徐工集团凯宫重工南京有限公司 In a kind of tunnel, cutter head of shield machine assists tool changing device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105781563A (en) * 2016-03-22 2016-07-20 东北大学 Auxiliary tool changing device of slurry balance shield tunneling machine and application method of auxiliary tool changing device
CN105781563B (en) * 2016-03-22 2017-12-01 东北大学 A kind of slurry balance shield machine auxiliary tool changing device and its application method
CN105773596A (en) * 2016-03-28 2016-07-20 东北大学 Module for splicing tool changing robot mechanical arms of shield tunneling machine
CN105855849A (en) * 2016-04-14 2016-08-17 东北大学 Single-hobbing-cutter changing manipulator of shield tunneling machine
CN105855849B (en) * 2016-04-14 2017-12-01 东北大学 A kind of shield machine list hobboing cutter tool-changing mechanical arm
CN106640102A (en) * 2016-12-20 2017-05-10 上海隧道工程有限公司 Constant pressure replacement device of cutterhead periphery hob and replacement method thereof
CN106640102B (en) * 2016-12-20 2019-01-18 上海隧道工程有限公司 Cutterhead periphery hobboing cutter normal pressure more changing device and its replacing options
CN106863341A (en) * 2017-02-14 2017-06-20 东北大学 A kind of shield machine disk cutter tool-changing mechanical arm and its application method
CN106863341B (en) * 2017-02-14 2019-07-23 东北大学 A kind of shield machine disk cutter tool-changing mechanical arm and its application method
CN107461203A (en) * 2017-06-26 2017-12-12 北京圣龙博睿科技有限公司 A kind of shield machine automatic tool changer
WO2020093590A1 (en) * 2018-11-08 2020-05-14 大连理工大学 Full-section tunnel boring machine cutter replacing robot and cutter system matched with same

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