CN104564095A - Over cutter for shield tunneling machine - Google Patents
Over cutter for shield tunneling machine Download PDFInfo
- Publication number
- CN104564095A CN104564095A CN201410835414.6A CN201410835414A CN104564095A CN 104564095 A CN104564095 A CN 104564095A CN 201410835414 A CN201410835414 A CN 201410835414A CN 104564095 A CN104564095 A CN 104564095A
- Authority
- CN
- China
- Prior art keywords
- hydraulic cylinder
- cutter
- oil
- rod
- copper sheathing
- 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
Links
- 230000005641 tunneling Effects 0.000 title abstract 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052802 copper Inorganic materials 0.000 claims abstract description 25
- 239000010949 copper Substances 0.000 claims abstract description 25
- 238000010276 construction Methods 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 19
- 239000012530 fluid Substances 0.000 claims description 13
- 210000004907 gland Anatomy 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 4
- 238000005461 lubrication Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000012937 correction Methods 0.000 abstract description 5
- 239000002689 soil Substances 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000011440 grout Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 16
- 239000004519 grease Substances 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to an over cutter for a shield tunneling machine. The over cutter is characterized in that an assembly of the whole over-cutter is in a cylindrical shape; a hydraulic cylinder base is fixed in a cutter spoke through a cutter repairing cover; a copper sleeve sleeves an axial inner cavity of the hydraulic cylinder base; a long cylindrical hydraulic cylinder is inserted into the copper sleeve; an oil hole and an oil port which are successively penetrated are formed in the hydraulic cylinder from front end to tail end; an end cover sleeves the middle part of a hydraulic cylinder rod; a piston is fastened at the front end of the hydraulic cylinder rod through a thread structure; external threads of the end cover is fastened with internal threads at the tail end of the hydraulic cylinder; an oil inlet and an oil outlet are formed above the rear part of the hydraulic cylinder rod and are respectively connected with a rod-less cavity and a rod cavity of the hydraulic cylinder rod. The over cutter for the shield tunneling machine has the beneficial effects that the over cutter is integrally designed with the cutter; the structure is simple; the space is saved; the cost is low; the safety is high; the manufacturing, mounting and maintaining are all convenient; the curve construction, such as, steering correction, can be met; the soil disturbance is extremely reduced; the grout amount of duct pieces is reduced; the abrasion loss of the over cutter can be detected, so that the construction error is reduced and the construction cost is saved.
Description
Technical field the present invention relates to engineering machinery.
Background technology is along with the fast development in city, and the solid of the pipeline pipelines such as communication, electric power, plumbing is arranged and brought into schedule, and urban pipe network shield machine is that current pipeline excavates best selection scheme.What current application was maximum is 4m shield machine, and in most cases shield machine construction is all that curve construction needs to turn and correction, and this just uses cutter of backbreaking, and carries out radial direction backbreak to the soil body.Cutter operating mode of backbreaking is complicated, and greatly stressed, installing space is little, and stability requirement is high.
Summary of the invention is for solving above technical problem, and the present invention proposes following technical scheme: a kind of shield machine is backbreak cutter, and its feature is: whole cutter assembly of backbreaking is cylindrical, is fixed in cutterhead spoke by hydraulic cylinder seat by cutterhead access cover.Be interference fit gap between the axial bore of copper sheathing external surface and hydraulic cylinder seat, copper sheathing rear end is provided with axial location screw i.The hydraulic cylinder of oval column inserts in described copper sheathing, is the gap that is slidably matched between hydraulic cylinder outer circumference surface and copper sheathing inner peripheral surface.The front and rear part of copper sheathing is respectively equipped with sealing ring i and sealing ring ii.The head of hydraulic cylinder is provided with square recessed and be provided with oval vestibule at rear portion, and this oval vestibule tail end is provided with internal thread.The middle part outer circumference surface of hydraulic cylinder is provided with sealing ring iii and afterbody outer circumference surface is also provided with recessed plane.Hydraulic cylinder is inner is provided with oilhole ii through successively, oilhole i and hydraulic fluid port from front end to afterbody.The afterbody of hydraulic cylinder rod is anchored on the rear portion of hydraulic cylinder by bearing pin.In the middle part of hydraulic cylinder rod, cover has end cap, the fastening piston of front end helicitic texture.The internal thread of end cap external screw thread and hydraulic cylinder tail end is fastening.Piston and end cap are equipped with hermetically-sealed construction.The oil-in that hydraulic cylinder rod rear upper is provided with and oil-out are connected with rod chamber with the rodless cavity of hydraulic cylinder rod respectively, and hydraulic cylinder rod afterbody outer circumference surface is provided with tail plane and tail end face is provided with square recessed ii.Block is provided with vertically in hydraulic cylinder seat.The oil duct of the inner peripheral surface of lubrication hydraulic fluid port and copper sheathing is through.The cutter rear portion of backbreaking being provided with blind hole is provided with square projection, and cutter of backbreaking coupled bolt group i is anchored in the square shrinkage pool of hydraulic cylinder head, square projection and square recessed between oilhole junction be provided with sealing ring iii.The coupled bolt group ii of gland is anchored on the rear upper of hydraulic cylinder seat.Support i is anchored on the afterbody of hydraulic cylinder by Magnetic Induction plate by bolt, the baffle plate on the fastening proximity switch in support ii upper end and lower end and bearing pin is fastening.Blind hole, long oil hole ii, long oil hole i and hydraulic fluid port be communicated with composition the outside oil feed line of oil circuit be provided with pressure sensor, oil cylinder oil feed line is provided with flow meter.
The present invention that have employed technique scheme has following beneficial effect: this backbreak cutter and cutterhead integrated design, and structure is simple, and save space, cost is low and safety is high.Manufacture, installation, maintenance are all very convenient, working stability.Simple to operate, running precision is high, meets correction of turning and waits curve construction, can reduce soil disturbance to greatest extent, reduce section of jurisdiction grouting amount.Simultaneously by detecting the wear extent of cutter of backbreaking, can construction error be reduced, saving construction cost.
Accompanying drawing explanation
Fig. 1 is that shield machine of the present invention is backbreak cutter monnolithic case axle side schematic diagram.
Fig. 2 is the exploded view of Fig. 1.
Fig. 3 is that shield machine of the present invention is backbreak cutter retracted position cut-away illustration.
Fig. 4 is that shield machine of the present invention is backbreak cutter extended position cut-away illustration.
In figure: 1, cutterhead spoke, 2, to backbreak cutter, 3, sealing ring i, 4, hydraulic cylinder seat, 5, copper sheathing, 6, sealing ring ii, 7, screw i, 8, hydraulic cylinder, 9, cutterhead access cover, 10, piston, 11, gland, 12, hydraulic cylinder rod, 14, support i, 16, Magnetic Induction plate, 17, proximity switch, 18, support ii, 19, screw ii, 20, baffle plate, 21, bearing pin, 22, end cap, 23, hydraulic fluid port, 24, rod chamber, 25, rodless cavity, 26, oilhole i, 27, block, 28, sealing ring iii, 29, oilhole ii, 30, oil duct, 31, sealing ring iii, 32, blind hole, 33, attachment bolt group i, 34, attachment bolt group ii, 35, square projection, 36, square recessed i, 37, recessed plane, 38, plane structure, 39, lubrication hydraulic fluid port, 40, oil-out, 41, oil-in, 42, tail plane, 43, square recessed ii.
Detailed description of the invention configuration and principle of the present invention is: cutter assembly of backbreaking is cylindrical, is installed in cutterhead spoke, by integrally welded by hydraulic cylinder seat.Hydraulic cylinder is arranged in copper sheathing, and copper sheathing is arranged on hydraulic cylinder seat, is sealed by sealing ring, carries out axial restraint by screw, carries out axial location by block.Adding sealing ring between hydraulic cylinder and hydraulic cylinder seat stops silt to enter hydraulic cylinder.Hydraulic cylinder and hydraulic cylinder seat are coordinated by plane and play the guiding role.Hydraulic cylinder rod is connected with hydraulic cylinder seat by bearing pin, and square hole structure is that hydraulic cylinder rod play the guiding role.Gland fixes by Bolt Connection and hydraulic cylinder seat the intensity increasing hydraulic cylinder seat.It is that hydraulic cylinder and copper sheathing slide and lubricate that lubricating grease arrives oil duct by hydraulic fluid port and oilhole.The hydraulic fluid port access hydraulic oil detecting oil circuit arrives by oilhole cutter front end of backbreaking, and the oilhole of backbreak cutter oilhole and hydraulic cylinder is sealed by sealing ring, and oil circuit is in barotropic state, for tool wear monitoring of backbreaking.Oil-in on hydraulic cylinder rod and oil-out lead to rodless cavity and the rod chamber of hydraulic cylinder respectively; When oil-in oil-feed, because hydraulic cylinder rod is fixed, then hydraulic cylinder slides in copper sheathing, achieve the feeding of cutter of backbreaking, the amount of feeding is controlled by the flow meter on in-line, along with the rotation of cutterhead realizes backbreaking operation, thus achieves turning or the correction operation of shield machine; After the work of backbreaking completes, rod chamber oil-feed, rodless cavity is fuel-displaced, and hydraulic cylinder drives cutter of backbreaking to retract, and stop retracting when being arranged on after the proximity switch on hydraulic cylinder seat sends limit signal, hydraulic cylinder is retracted into initial position.When the oil pressure of cutter abrasion detection pipeline of backbreaking reduces, then illustrate that the wear extent of cutter of backbreaking reaches rated wear, then this cutter of backbreaking can not re-use, and should enable cutter of backbreaking for subsequent use and complete operation of backbreaking.
Below in conjunction with accompanying drawing, specific embodiments of the invention are further described: whole cutter assembly profile of backbreaking is cylindrical, by cutterhead access cover 9, is installed on by hydraulic cylinder seat 4 in cutterhead spoke 1, integrally welded by weld seam.Hydraulic cylinder 8 is arranged in copper sheathing 5, and copper sheathing 5 interference fit is arranged in hydraulic cylinder seat 4, is sealed by sealing ring 6, carries out circumference fix by screw 7, carries out axial location by welding block 27.Hydraulic cylinder seat 4 and copper sheathing 5 seal to stop silt to enter by sealing ring 3.Hydraulic cylinder 8 and copper sheathing 5 are sealed by sealing ring iii-28.The recessed plane 37 of hydraulic cylinder 8 coordinates with the plane structure 38 of hydraulic cylinder seat 4 and play the guiding role.Screw-internal thread fit on end cap 22 on threading and hydraulic cylinder 8 is tightened to one.Internal thread on piston 10 coordinate with the external screw thread of hydraulic cylinder rod 12 head be tightened to one.Hydraulic cylinder rod 12 is fastening by bearing pin 21 and hydraulic cylinder 8, baffle plate 20 by screw ii-19 and hydraulic cylinder 8 fastening, in order to the position of fixed pin shaft 21.Tail plane 42 on hydraulic cylinder rod 12 all play the guiding role with the square hole 43 of hydraulic cylinder 8.Gland 11 is by the intensity of Bolt Connection group ii-34 and hydraulic cylinder seat 4 fastening increase hydraulic cylinder seat 4.It is that hydraulic cylinder 8 lubricates with the relative sliding of copper sheathing 5 that lubricating grease injects oil duct 30 by lubrication hydraulic fluid port 39.The square structure at cutter 2 rear portion of backbreaking is embedded in the square recessed i-36 on hydraulic cylinder 8, and is fixed by Bolt Connection group i-33 and hydraulic cylinder 8.Hydraulic fluid port 23 is accessed hydraulic oil and is arrived by oilhole i-26, oilhole ii-29 and blind hole 32 and to backbreak cutter 2 front end, and oilhole i-26 and oilhole ii-29 is sealed by sealing ring iii-31, and oil circuit is in barotropic state, can be used for detecting the wearing and tearing of cutter 2 of backbreaking.Oil-in 41 and oil-out 40 lead to rodless cavity 25 and the rod chamber 24 of hydraulic cylinder rod 12 respectively.When oil-in 41 oil-feed, because hydraulic cylinder rod 12 is fixed, then hydraulic cylinder 8 slides copper sheathing 5 in, and realization is backbreak the feeding of cutter 2, see Fig. 2.The amount of feeding is controlled by the flow meter on in-line.Thus complete operation of backbreaking along with the rotation of cutter head of shield machine, realize turning or the correction operation of shield machine.After the work of backbreaking completes, by oil-out 40 to rod chamber 24 oiling, rodless cavity 25 is by oil-in 41 oil extraction, and hydraulic cylinder 8 drives cutter 2 of backbreaking to retract.The support i-14 of hydraulic cylinder 8 afterbody to be magnetic tablet 16 by bolton, and the upper end of support ii-18 is fastened with proximity switch 17 and baffle plate 20 on lower end and bearing pin 21 is fastening.When hydraulic cylinder 8 drives Magnetic Induction plate 16 to move to extreme position, inductive proximity switch 17 sends signal, and stop to rod chamber 25 oiling, hydraulic cylinder 8 is retracted into initial position, see Fig. 1.The outside oil feed line of the pipeline that hydraulic fluid port 23, oilhole i-26, oilhole ii-29 and blind hole 32 form also is provided with pressure sensor, when pressure sensor detects the reduction of cutter oil pressure, then illustrate that the wear extent of cutter 2 of backbreaking reaches rated wear, can not re-use, cutter of backbreaking for subsequent use should be enabled and complete operation of backbreaking.
Claims (3)
1. a shield machine is backbreak cutter, it is characterized in that: whole cutter assembly of backbreaking is cylindrical, by cutterhead access cover (9), hydraulic cylinder seat (4) is fixed in cutterhead spoke (1), be interference fit gap between the axial bore of copper sheathing (5) external surface and described hydraulic cylinder seat (4), described copper sheathing (5) rear end is provided with axial location screw i (7), the hydraulic cylinder (8) of oval column inserts in described copper sheathing (5), be the gap that is slidably matched between described hydraulic cylinder (8) outer circumference surface and described copper sheathing (5) inner peripheral surface, the front and rear part of described copper sheathing (5) is respectively equipped with sealing ring i (3) and sealing ring ii (6), the head of described hydraulic cylinder (8) is provided with square recessed (36) and is provided with oval vestibule at rear portion, this oval vestibule tail end is provided with internal thread, the middle part outer circumference surface of described hydraulic cylinder (8) is provided with sealing ring iii (28) and afterbody outer circumference surface is also provided with recessed plane (38), described hydraulic cylinder (8) is inner is provided with oilhole ii (29) through successively from front end to afterbody, oilhole i (26) and hydraulic fluid port (23), the afterbody of hydraulic cylinder rod (12) is anchored on the rear portion of described hydraulic cylinder (8) by bearing pin (21), described hydraulic cylinder rod (12) middle part cover has end cap (22), the fastening piston of front end helicitic texture (10), described end cap (22) external screw thread and the internal thread of described hydraulic cylinder (8) tail end fastening, the oil-in (41) that described hydraulic cylinder rod (12) rear upper is provided with and oil-out (40) are connected with rod chamber (24) with the rodless cavity (25) of hydraulic cylinder rod (12) respectively, and described hydraulic cylinder rod (12) afterbody outer circumference surface is provided with tail plane (42) and tail end face is provided with square recessed ii (43), be provided with block (27) in hydraulic cylinder seat (4) vertically, lubrication hydraulic fluid port (39) is through with the oil duct (30) of the inner peripheral surface of copper sheathing (5), cutter of backbreaking (2) rear portion being provided with blind hole (32) is provided with square projection (35), described cutter of backbreaking (2) coupled bolt group i (33) is anchored in the square shrinkage pool (36) of described hydraulic cylinder (8) head, and the oilhole junction between described square projection (35) and square recessed (36) is provided with sealing ring iii (31), gland (11) coupled bolt group ii (34) is anchored on the rear upper of described hydraulic cylinder seat (4), support i (14) is anchored on the afterbody of hydraulic cylinder (8) by Magnetic Induction plate (16) by bolt, the baffle plate (20) on the fastening proximity switch in support ii (18) upper end (17) and lower end and bearing pin (21) is fastening.
2. shield machine according to claim 1 is backbreak cutter, it is characterized in that: described piston (10) and end cap (22) are equipped with hermetically-sealed construction.
3. shield machine according to claim 1 is backbreak cutter, it is characterized in that: described blind hole (32), long oil hole ii (29), long oil hole i (26) and hydraulic fluid port (23) be communicated with composition the outside oil feed line of oil circuit be provided with pressure sensor and flow meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410835414.6A CN104564095B (en) | 2014-12-29 | 2014-12-29 | Shield machine is backbreak knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410835414.6A CN104564095B (en) | 2014-12-29 | 2014-12-29 | Shield machine is backbreak knife |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104564095A true CN104564095A (en) | 2015-04-29 |
| CN104564095B CN104564095B (en) | 2017-03-29 |
Family
ID=53081076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410835414.6A Active CN104564095B (en) | 2014-12-29 | 2014-12-29 | Shield machine is backbreak knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104564095B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356830A (en) * | 2018-11-13 | 2019-02-19 | 宁波利佳青石电气科技有限公司 | A kind of RO pump of preventing water leakage |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201707040U (en) * | 2010-04-14 | 2011-01-12 | 北京华隧通掘进装备有限公司 | Hydraulic wear detection tool for shield machine |
| CN202707069U (en) * | 2012-06-27 | 2013-01-30 | 三一重工股份有限公司 | Shield tunneling machine and thrust hydraulic system thereof |
| JP2013032666A (en) * | 2011-08-03 | 2013-02-14 | Okumura Corp | Shield machine |
| CN203978440U (en) * | 2014-04-15 | 2014-12-03 | 昆山众备机械设备有限公司 | A kind of hob-cutter structure with the shield machine of withstand voltage pressure holding function |
| CN204357440U (en) * | 2014-12-29 | 2015-05-27 | 中国第一重型机械股份公司 | Shield machine is backbreak cutter |
-
2014
- 2014-12-29 CN CN201410835414.6A patent/CN104564095B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201707040U (en) * | 2010-04-14 | 2011-01-12 | 北京华隧通掘进装备有限公司 | Hydraulic wear detection tool for shield machine |
| JP2013032666A (en) * | 2011-08-03 | 2013-02-14 | Okumura Corp | Shield machine |
| CN202707069U (en) * | 2012-06-27 | 2013-01-30 | 三一重工股份有限公司 | Shield tunneling machine and thrust hydraulic system thereof |
| CN203978440U (en) * | 2014-04-15 | 2014-12-03 | 昆山众备机械设备有限公司 | A kind of hob-cutter structure with the shield machine of withstand voltage pressure holding function |
| CN204357440U (en) * | 2014-12-29 | 2015-05-27 | 中国第一重型机械股份公司 | Shield machine is backbreak cutter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356830A (en) * | 2018-11-13 | 2019-02-19 | 宁波利佳青石电气科技有限公司 | A kind of RO pump of preventing water leakage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104564095B (en) | 2017-03-29 |
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