CN104564095B - Shield machine is backbreak knife - Google Patents
Shield machine is backbreak knife Download PDFInfo
- Publication number
- CN104564095B CN104564095B CN201410835414.6A CN201410835414A CN104564095B CN 104564095 B CN104564095 B CN 104564095B CN 201410835414 A CN201410835414 A CN 201410835414A CN 104564095 B CN104564095 B CN 104564095B
- Authority
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- China
- Prior art keywords
- hydraulic cylinder
- oil
- copper sheathing
- knife
- backbreaking
- Prior art date
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- 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
- 239000012530 fluid Substances 0.000 claims abstract description 13
- 238000003780 insertion Methods 0.000 claims abstract description 7
- 230000037431 insertion Effects 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 21
- 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 3
- 239000007788 liquid Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 8
- 238000012937 correction Methods 0.000 abstract description 4
- 239000002689 soil Substances 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 16
- 238000001514 detection method Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000004891 communication 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
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000009428 plumbing Methods 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
A kind of shield machine is backbreak knife, and its feature is：Knife assembly of entirely backbreaking is fixed on hydraulic cylinder seat in cutterhead spoke by cutterhead access cover in cylinder.Copper sheathing fills the axial bore of hydraulic cylinder seat, in the hydraulic cylinder insertion copper sheathing of oval column.The oilhole and hydraulic fluid port of insertion successively are provided with inside hydraulic cylinder from front end to afterbody.End cap is cased with the middle part of hydraulic cylinder rod, front end fastens piston with helicitic texture.End cap external screw thread is fastened with the female thread of hydraulic cylinder tail end.The oil-in that hydraulic cylinder rod rear upper is provided with is connected with the rodless cavity and rod chamber of hydraulic cylinder rod respectively with oil-out.The invention has the advantages that：This backbreak knife and cutterhead integrated design, simple structure, save space, low cost and it is safe.Manufacture, installation, maintenance are very convenient, can meet the curve construction such as turning correction, can reduce soil disturbance to greatest extent, reduce section of jurisdiction grouting amount.By the wear extent for detecting cutter of backbreaking, reduce construction error, save construction cost.
Description
Technical field is the present invention relates to engineering machinery.
Background technology is carried with the three-dimensional arrangement of the pipeline pipelines such as the fast development in city, communication, electric power, plumbing
Upper schedule, urban pipe network shield machine are that current pipeline excavates best selection scheme.At present using it is most be 4m shield machines, it is many
In the case of number shield machine construction be all curve construction need turn and rectify a deviation, this just using to knife of backbreaking, the soil body is carried out radial direction
Backbreak.Knife operating mode of backbreaking is complicated, and stress is big, and installing space is little, and stability requirement is high.
To solve above technical problem, the present invention proposes following technical scheme to the content of the invention：A kind of shield machine is backbreak knife,
Its feature is：Knife assembly of entirely backbreaking is fixed on hydraulic cylinder seat in cutterhead spoke by cutterhead access cover in cylinder.
It is interference fit gap between the axial bore of copper sheathing outer surface and hydraulic cylinder seat, copper sheathing rear end is provided with axially position screw i.It is long
Columned hydraulic cylinder is inserted in the copper sheathing, between being slidably matched between hydraulic cylinder outer circumference surface and copper sheathing inner peripheral surface
Gap.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 sets at rear portion
There is oval vestibule, the oval vestibule tail end is provided with female thread.The middle part outer circumference surface of hydraulic cylinder is provided with sealing ring iii and afterbody
Outer circumference surface is additionally provided with recessed plane.Inside hydraulic cylinder from front end to afterbody be provided with insertion successively oilhole ii, oilhole i and
Hydraulic fluid port.The afterbody of hydraulic cylinder rod is anchored on bearing pin the rear portion of hydraulic cylinder.End cap, front end screw thread are cased with the middle part of hydraulic cylinder rod
Fastening structure piston.End cap external screw thread is fastened with the female thread of hydraulic cylinder tail end.Piston is equipped with sealing structure with end cap.Liquid
The oil-in that cylinder pressure bar rear upper is provided with is connected with the rodless cavity and rod chamber of hydraulic cylinder rod respectively with oil-out, 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.Profit
The oil duct insertion of the inner peripheral surface of lubricating oil mouth and copper sheathing.The cutter rear portion of backbreaking for being provided with blind hole is provided with square protruding, cutter of backbreaking
Coupled bolt group i is anchored in the square shrinkage pool of hydraulic cylinder head, square protruding and it is square it is recessed between oilhole connection
Place is provided with sealing ring iv.Coupled bolt group ii of gland is anchored on the rear upper of hydraulic cylinder seat.Magnetic Induction plate passes through bolt
Support i is anchored on into the afterbody of hydraulic cylinder, support ii upper ends fasten proximity switch and lower end is fastened with the baffle plate on bearing pin.It is blind
Outside the oil circuit of hole, long oilhole ii, long oilhole i and the connected composition of hydraulic fluid port, oil feed line is provided with pressure transducer, and oil cylinder is supplied
Oil pipe line is provided with effusion meter.
Employ above-mentioned technical proposal the invention has the advantages that：This knife of backbreaking is integrated with cutterhead to be set
Meter, simple structure, save space, low cost and it is safe.Manufacture, installation, maintenance are very convenient, working stability.Operation letter
Single, running precision is high, meets the curves such as correction construction of turning, can reduce soil disturbance to greatest extent, reduces section of jurisdiction grouting amount.
While the wear extent of cutter of backbreaking by detection, can reduce construction error, construction cost is saved.
Description of the drawings
Fig. 1 backbreaks knife monnolithic case axle side schematic diagram for shield machine of the present invention.
Exploded views of the Fig. 2 for Fig. 1.
Fig. 3 backbreaks cutter retracted position cut-away illustration for shield machine of the present invention.
Fig. 4 backbreaks cutter extended position cut-away illustration for shield machine of the present invention.
In figure：1st, cutterhead spoke, 2, cutter of backbreaking, 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 sense
Answer plate, 17, proximity switch, 18, support ii, 19, screw ii, 20, baffle plate, 21, bearing pin, 22, end cap, 23, hydraulic fluid port, 24, have bar
Chamber, 25, rodless cavity, 26, oilhole i, 27, block, 28, sealing ring iii, 29, oilhole ii, 30, oil duct, 31, sealing ring iv, 32,
Blind hole, 33, attachment bolt group i, 34, attachment bolt group ii, 35, square protruding, 36, square recessed i, 37, recessed plane, 38,
Planar structure, 39, lubrication hydraulic fluid port, 40, oil-out, 41, oil-in, 42, tail plane, 43, square recessed ii.
Specific embodiment the present invention structure with principle be：Knife assembly of backbreaking is pacified by hydraulic cylinder seat in cylinder
Loaded in cutterhead spoke, by integrally welded.Hydraulic cylinder is arranged in copper sheathing, and copper sheathing is arranged on hydraulic cylinder seat, is passed through
Sealing ring is sealed, and is carried out axial restraint by screw, is carried out axially position by block.Add between hydraulic cylinder and hydraulic cylinder seat
Sealing ring prevents silt from entering hydraulic cylinder.Hydraulic cylinder is play the guiding role by plane cooperation with hydraulic cylinder seat.Hydraulic cylinder rod leads to
Cross bearing pin to be connected with hydraulic cylinder seat, square hole structure play the guiding role for hydraulic cylinder rod.Gland is by bolt-connection and hydraulic cylinder seat
The fixed intensity for increasing hydraulic cylinder seat.Grease passes through hydraulic fluid port and oilhole reaches oil duct for hydraulic cylinder and copper sheathing slip lubrication.
The hydraulic fluid port of detection oil circuit accesses hydraulic oil and reaches cutter front end of backbreaking, the oilhole of backbreak cutter oilhole and hydraulic cylinder by oilhole
Sealed by sealing ring, oil circuit is in barotropic state, for tool wear monitoring of backbreaking.Oil-in on hydraulic cylinder rod and fuel-displaced
Mouth is respectively towards the rodless cavity and rod chamber of hydraulic cylinder；When oil-in oil-feed, as hydraulic cylinder rod is fixed, then hydraulic cylinder exists
Slide in copper sheathing, realize the feeding of knife of backbreaking, the amount of feeding is controlled by the effusion meter on in-line, with the rotation of cutterhead
Realization is backbreak operation, it is achieved thereby that the turning of shield machine or correction operation；After the completion of work of backbreaking, rod chamber oil-feed, nothing
Rod cavity is fuel-displaced, and hydraulic cylinder drives knife retraction of backbreaking, and stops after the proximity switch on hydraulic cylinder seat sends limit signal
Only retract, hydraulic cylinder is retracted into initial position.When the oil pressure of knife abrasion detection pipeline of backbreaking is reduced, then knife of backbreaking is illustrated
Wear extent reaches rated wear, then this knife of backbreaking can not be reused, and should enable standby knife of backbreaking and complete operation of backbreaking.
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is further described：Knife assembly profile of entirely backbreaking is in
Cylinder, by cutterhead access cover 9, hydraulic cylinder seat 4 is installed in cutterhead spoke 1, integrally welded by weld seam.Hydraulic cylinder
Body 8 is arranged in copper sheathing 5, and 5 interference fit of copper sheathing is arranged in hydraulic cylinder seat 4, is sealed by sealing ring 6, is carried out by screw 7
It is circumferentially fixed, axially position is carried out by welding block 27.Hydraulic cylinder seat 4 seals to prevent silt by sealing ring 3 with copper sheathing 5
Into.Hydraulic cylinder 8 is sealed by sealing ring iii-28 with copper sheathing 5.The recessed plane 37 of hydraulic cylinder 8 and hydraulic cylinder seat 4
Planar structure 38 coordinates and play the guiding role.On end cap 22, threading is tightened to the screw-internal thread fit on hydraulic cylinder 8
Integrally.Female thread on piston 10 is fastened together with the external screw thread cooperation of 12 head of hydraulic cylinder rod.Hydraulic cylinder rod 12 passes through pin
Axle 21 is fastened with hydraulic cylinder 8, and baffle plate 20 is fastened with hydraulic cylinder 8 by screw ii-19, to the position of fixed pin shaft 21.
Tail plane 42 on hydraulic cylinder rod 12 is play the guiding role with the square hole 43 of hydraulic cylinder 8.Gland 11 passes through bolt-connection group
Ii-34 fastens the intensity for increasing hydraulic cylinder seat 4 with hydraulic cylinder seat 4.Grease is hydraulic pressure by lubricate hydraulic fluid port 39 to inject oil duct 30
The slip lubrication relative with copper sheathing 5 of cylinder body 8.Backbreak 2 rear portion of cutter square structure be embedded into it is square recessed on hydraulic cylinder 8
In i-36, and fixed with hydraulic cylinder 8 by bolt-connection group i-33.Hydraulic fluid port 23 accesses hydraulic oil and passes through oilhole i-26, oilhole
Ii-29 and blind hole 32 reach 2 front end of cutter of backbreaking, and oilhole i-26 and oilhole ii-29 are sealed by sealing ring iv-31, at oil circuit
In barotropic state, can be used to detect the abrasion of cutter 2 of backbreaking.Oil-in 41 and oil-out 40 are respectively towards the nothing of hydraulic cylinder rod 12
Rod cavity 25 and rod chamber 24.When 41 oil-feed of oil-in, as hydraulic cylinder rod 12 is fixed, then hydraulic cylinder 8 is sliding in copper sheathing 5
Dynamic, realization is backbreak the feeding of cutter 2, referring to Fig. 2.The amount of feeding is by the effusion meter control on in-line.So as to shield
The rotation of machine knife disk completes operation of backbreaking, and realizes the turning or correction operation of shield machine.After the completion of work of backbreaking, by fuel-displaced
To 24 oiling of rod chamber, by 41 oil extraction of oil-in, hydraulic cylinder 8 drives cutter 2 of backbreaking to retract to rodless cavity 25 to mouth 40.Hydraulic cylinder
Be fastened with Magnetic Induction plate 16 with bolt on the support i-14 of 8 afterbody of body, the upper end of support ii-18 be fastened with proximity switch 17 and
Lower end is fastened with the baffle plate 20 on bearing pin 21.When hydraulic cylinder 8 drives Magnetic Induction plate 16 to move to extreme position, sensing connects
Nearly switch 17 sends signal, stops giving rod chamber 25 oiling, and hydraulic cylinder 8 is retracted into initial position, referring to Fig. 1.Hydraulic fluid port 23, oil
Pressure transducer is additionally provided with the outside oil feed line of the pipeline constituted by hole i-26, oilhole ii-29 and blind hole 32, works as pressure
When force transducer detection knife oil pressure is reduced, then the backbreak wear extent of cutter 2 of explanation reaches rated wear, can not reuse, should
Enable standby knife of backbreaking and complete operation of backbreaking.
Claims (3)
1. a kind of shield machine is backbreak knife, it is characterised in that：Knife assembly of entirely backbreaking is in cylinder, by cutterhead access cover (9),
Hydraulic cylinder seat (4) is fixed in cutterhead spoke (1), between copper sheathing (5) outer surface and the axial bore of the hydraulic cylinder seat (4)
For interference fit gap, copper sheathing (5) rear end is provided with axially position screw i (7), hydraulic cylinder (8) insertion of oval column
In the copper sheathing (5), it is the gap that is slidably matched between hydraulic cylinder (8) outer circumference surface and the copper sheathing (5) inner peripheral surface,
The front and rear part of the copper sheathing (5) is respectively equipped with sealing ring i (3) and sealing ring ii (6), and the head of the hydraulic cylinder (8) is provided with
Square recessed (36) and be provided with oval vestibule at rear portion, the oval vestibule tail end is provided with female thread, in the hydraulic cylinder (8)
Portion's outer circumference surface is provided with sealing ring iii (28) and afterbody outer circumference surface is additionally provided with recessed plane (38), the hydraulic cylinder (8)
Portion is provided with oilhole ii (29), oilhole i (26) and the hydraulic fluid port (23) of insertion successively from front end to afterbody, and bearing pin (21) is by hydraulic cylinder
The afterbody of bar (12) is anchored on the rear portion of the hydraulic cylinder (8), is cased with end cap (22), front end in the middle part of the hydraulic cylinder rod (12)
Piston (10) is fastened with helicitic texture, described end cap (22) external screw thread is fastened with the female thread of the hydraulic cylinder (8) tail end；
The oil-in (41) that hydraulic cylinder rod (12) rear upper is provided with is with oil-out (40) respectively with hydraulic cylinder rod (12) without bar
Chamber (25) is connected with rod chamber (24), and hydraulic cylinder rod (12) the afterbody outer circumference surface is provided with tail plane (42) and tail end face
It is provided with square recessed ii (43)；It is provided with block (27) in hydraulic cylinder seat (4) vertically, lubrication hydraulic fluid port (39) is interior with copper sheathing (5)
Oil duct (30) insertion of periphery；Cutter of backbreaking (2) rear portion for being provided with blind hole (32) is provided with square protruding (35), the knife of backbreaking
Coupled bolt group i (33) of tool (2) is anchored in square recessed (36) of the hydraulic cylinder (8) head, and described is square convex
The oilhole junction risen between (35) and square recessed (36) is provided with sealing ring iv (31)；Coupled bolt group ii of gland (11)
(34) rear upper of the hydraulic cylinder seat (4) is anchored on, support i (14) is anchored on liquid by bolt by Magnetic Induction plate (16)
The afterbody of cylinder pressure body (8), support ii (18) upper end fastens proximity switch (17) and lower end is tight with the baffle plate (20) on bearing pin (21)
Gu.
2. shield machine according to claim 1 is backbreak knife, it is characterised in that：Described piston (10) is all provided with end cap (22)
There is sealing structure.
3. shield machine according to claim 1 is backbreak knife, it is characterised in that：The blind hole (32), oilhole ii (29), oilhole
Outside the oil circuit of i (26) and the connected composition of hydraulic fluid port (23), oil feed line is provided with pressure transducer and effusion 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 CN104564095A (en) | 2015-04-29 |
| CN104564095B true 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) |
Families Citing this family (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 |
Family Cites Families (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 |
| JP5777158B2 (en) * | 2011-08-03 | 2015-09-09 | 株式会社奥村組 | 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 |
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2014
- 2014-12-29 CN CN201410835414.6A patent/CN104564095B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104564095A (en) | 2015-04-29 |
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