CN106181345B - A kind of Multifunctional installation apparatus of screw shaft of ship hydraulic nut - Google Patents

A kind of Multifunctional installation apparatus of screw shaft of ship hydraulic nut Download PDF

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Publication number
CN106181345B
CN106181345B CN201610676298.7A CN201610676298A CN106181345B CN 106181345 B CN106181345 B CN 106181345B CN 201610676298 A CN201610676298 A CN 201610676298A CN 106181345 B CN106181345 B CN 106181345B
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CN
China
Prior art keywords
connecting seat
connector
seat
hydraulic nut
screw shaft
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.)
Active
Application number
CN201610676298.7A
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Chinese (zh)
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CN106181345A (en
Inventor
汪国君
王亚东
曹兴林
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.)
Dongtai Haipeng Shipping Fittings Co Ltd
Original Assignee
Dongtai Haipeng Shipping Fittings Co Ltd
Priority date (The priority date 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 date listed.)
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Priority to CN201610676298.7A priority Critical patent/CN106181345B/en
Publication of CN106181345A publication Critical patent/CN106181345A/en
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Publication of CN106181345B publication Critical patent/CN106181345B/en
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Classifications

    • 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
    • B23P19/04Machines 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 for assembling or disassembling parts
    • B23P19/06Screw or nut setting or loosening machines

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Connection Of Plates (AREA)

Abstract

The invention discloses a kind of Multifunctional installation apparatus of screw shaft of ship hydraulic nut,Including the first connecting seat,Second connecting seat,First connector,Second connector,Turning set,Several fixed mechanisms,Upper flap seat,Lower flap seat,Two mounting bases,Adjusting screw rod,Motor,Gearbox,Gear,Rack,Holder,Turntable,Fixed hook,Connecting plate,Several slots,Several first fixing bolts,Several through-holes,Several second fixing bolts,First mounting plate,Axis body,Body,Pointer and datum line,Rotatable turning set is installed on first connecting seat and the second connecting seat,The turning set is equipped with rack and the circumferentially fixed mechanism of shape distribution between the first connecting seat and the second connecting seat,The upper end of first connecting seat and the second connecting seat is equipped with the first connector described in the first connector and is equipped with slidably upper flap seat,Compared with prior art,It can be easy to use,Save manpower,Installation effectiveness is high,It is easy to adjust quick.

Description

A kind of Multifunctional installation apparatus of screw shaft of ship hydraulic nut
【Technical field】
The present invention relates to the technical field of shipbuilding, the multi-functional installation of especially a kind of screw shaft of ship hydraulic nut fills The technical field set.
【Background technology】
The hydraulic pressure spiral shell for the effects that set and locking screw paddle is used for as China builds the gradual increase of the tonnage of ship, on screw shaft of ship Female diameter is also increasing therewith, and weight has reached hundreds of kilograms or more, can not be held and be installed with manpower.Existing installation Technology is the axis center position entangled the outer ring of hydraulic nut with wirerope, and be lifted to stern tube shaft outer end, by the branch at stern tube shaft end Hydraulic nut, upper stern tube shaft is tightened with manpower by support.Due to after lifting steel wire and hydraulic nut outer ring there are certain frictional force, because This, rotational hydraulic nut has high labor costs, and installs cooperation with stern tube shaft end nor easily, work efficiency is not high.
【Invention content】
The purpose of the present invention is exactly to solve the problems of the prior art, proposes a kind of the multi-functional of screw shaft of ship hydraulic nut Mounting device, can be easy to use, saves manpower, and installation effectiveness is high, easy to adjust quick.
To achieve the above object, the present invention proposes a kind of Multifunctional installation apparatus of screw shaft of ship hydraulic nut, including First connecting seat, the second connecting seat, the first connector, the second connector, turning set, several fixed mechanisms, upper flap seat, under hang Seat, two mounting bases, adjusting screw rod, motor, gearbox, gear, rack, holder, turntable, fixed hook, connecting plate, several slots Hole, several first fixing bolts, several through-holes, several second fixing bolts, the first mounting plate, axis body, body, pointer and benchmark Line, is equipped with rotatable turning set on first connecting seat and the second connecting seat, the turning set the first connecting seat with Be equipped with rack between second connecting seat and fixed mechanism that circumferentially shape is distributed, first connecting seat and the second connecting seat it is upper End is equipped with the first connector described in the first connector and is equipped with slidably upper flap seat, and the front of first connector is with after Portion is equipped with mounting base, and the mounting base is equipped with rotatable adjusting screw rod, and the adjusting screw rod is threaded through on flap seat simultaneously It is threadedly coupled with upper flap seat, the lower end of first connecting seat and the second connecting seat is equipped with the second connector, and described second connects The lower end of junctor be equipped with lower flap seat, second connector be equipped with gearbox, the motor be mounted on gearbox on and with change Fast case is sequentially connected, and the output shaft of the gearbox is equipped with gear, the wheel and rack engagement connection, first connection The front end of seat is equipped with holder, and the holder is equipped with rotatable turntable, fixed hook is equipped in the turntable, the connecting plate Lower part and top are respectively equipped with slot and through-hole, and first fixing bolt is fixedly connected across slot with the front end of turntable, institute It states and is equipped with the second fixing bolt in through-hole, the front end of first connector is equipped with the first mounting plate, on first mounting plate Portion and lower part are respectively equipped with axis body and datum line, and the central axis of the axis body is overlapped with datum line, is arranged on the axis body Body, the body is equipped with pointer, when first connector is at horizontality, central axis and the datum line weight of pointer It closes.
Preferably, first mounting plate is equipped with protective cover.
Preferably, the axis body is equipped with the blocking body that blocking body falls off, the blocking body is set on axis body.
Preferably, the connecting plate is equipped with protrusion, the front end of the turntable is equipped with and the matched holding tank of protrusion.
Preferably, the cross section of first connector is H-shaped shape.
Preferably, the upper flap seat includes pedestal, several first bearings and hanging ring, the upper end of the pedestal, which is equipped with, hangs Ring, the pedestal is on the outside of the upper end of the first connector and inside is equipped with first bearing.
Preferably, the quantity of the fixed mechanism is four, the fixed mechanism includes threaded rod, the first fixation spiral shell Mother, the second fixing nut, section, graduation mark, the second mounting plate, two fixed bodies and mounting bracket, the turning set are equipped with peace It shelves, the threaded rod is threaded through on mounting bracket and turning set, and the threaded rod is distinguished on the outside of the upper end of mounting bracket with inside Equipped with the first fixing nut and the second fixing nut, the threaded rod is equipped with section, and the section is equipped with graduation mark, described The rear end of threaded rod is equipped with the second mounting plate in turning set, and the rear end of second mounting plate is equipped with fixed body, the fixation The working face of body is arcuate shape, and the upper end of the threaded rod is equipped with groove, and the cross section of the groove is regular polygon shape.
Preferably, the inner wall of first connecting seat and the second connecting seat is fixed with supporting rack by fixing bolt, It is set on support frame as described above there are two bearing body, the turning set is equipped with circular positioning body between two bearing bodies, described Positioning body is fixedly connected by fastening bolt with turning set.
Preferably, support frame as described above includes installation axle and connecting shaft, the installation axle and connecting shaft are integrally formed machine Structure, the both ends of the installation axle are equipped with bearing body, and the inner wall of first connecting seat and the second connecting seat is equipped with and connecting shaft The matched inserting groove of insertion end.
Beneficial effects of the present invention:The present invention at work, suspender belt both ends is fixed with upper flap seat and lower flap seat respectively and are connected It connects, slings mounting device and be set on screw shaft of ship hydraulic nut, and fixed mechanism is adjusted according to the outer diameter of hydraulic nut, Make while fixed mechanism fixed hydraulic nut and ensure that hydraulic nut is concentric with turning set, fixed mechanism can be according to quarter when adjusting Degree line is adjusted, and accuracy is high, improves the locating speed of hydraulic nut, then unloads suspender belt, and the suspension hook of hoisting device is straight Hook is connect on upper flap seat, is then sling, and is adjusted by rotating adjusting screw rod, until pointer refers on datum line, then is led to Crossing motor drives gearbox work, gearbox to move turning set by the mating band of gear and rack and rotate, turning set band hydrodynamic pressure After the completion of waiting for that hydraulic nut stretches, the retainer screw thread of the second fixing bolt and hydraulic nut is connected until being screwed into place for nut rotation Connect, then slide fastener one end of chain block hung on fixed hook, and as needed slide fastener on turntable around several circles, then draw Dynamic chain block is rotated by zipper strip turn disk, and turntable drives the retainer of hydraulic nut to be locked by connecting plate, and existing There is technology to compare, can be easy to use, manpower is saved, installation effectiveness is high, easy to adjust quick.
The feature and advantage of the present invention will be described in detail by embodiment combination attached drawing.
【Description of the drawings】
Fig. 1 is a kind of structural schematic diagram of the Multifunctional installation apparatus of screw shaft of ship hydraulic nut of the present invention;
Fig. 2 is the enlarged drawing of A in Fig. 1.
In figure:The first connecting seats of 1-, the second connecting seats of 2-, the first connectors of 3-, the second connectors of 4-, 5- turning sets, 6- Flap seat, 9- mounting bases, 10- adjusting screw rods, 11- motors, 12- gearboxes, 13- gears, 14- under the upper flap seat of fixed mechanism, 7-, 8- Rack, 15- supporting racks, 16- fixing bolts, 17- bearing bodies, 18- positioning bodies, 19- inserting grooves, 20- grooves, 21- holders, 22- Turntable, 23- fixed hooks, 24- connecting plates, 25- slots, the first fixing bolts of 26-, 27- through-holes, the second fixing bolts of 28-, 29- Protrusion, 30- holding tanks, the first mounting plates of 31-, 32- axis bodies, 33- bodies, 34- pointers, 35- datum lines, 36- protective covers, 37- Stop that body, 61- threaded rods, the first fixing nuts of 62-, the second fixing nuts of 63-, the sections 64-, 65- graduation marks, 66- second pacify Loading board, 67- fixed bodies, 68- mounting brackets, 71- pedestals, 72- first bearings, 73- hanging rings, 151- installation axles, 152- connecting shafts.
【Specific implementation mode】
Refering to fig. 1,2, a kind of Multifunctional installation apparatus of screw shaft of ship hydraulic nut of the present invention, including the first connecting seat 1, Second connecting seat 2, the first connector 3, the second connector 4, turning set 5, several fixed mechanisms 6, upper flap seat 7, lower flap seat 8, two A mounting base 9, motor 11, gearbox 12, gear 13, rack 14, holder 21, turntable 22, fixed hook 23, connects adjusting screw rod 10 Fishplate bar 24, several slots 25, several first fixing bolts 26, several through-holes 27, several second fixing bolts 28, the first mounting plate 31, axis body 32, body 33, pointer 34 and datum line 35 are equipped on first connecting seat, 1 and second connecting seat 2 rotatable Turning set 5, the turning set 5 between the first connecting seat 1 and the second connecting seat 2 be equipped with rack 14 and circumferentially shape be distributed The upper end of fixed mechanism 6, first connecting seat, 1 and second connecting seat 2 is equipped with the first connector 3, first connector 3 It is equipped with slidably upper flap seat 7, the front and rear of first connector 3 is equipped with mounting base 9, in the mounting base 9 Equipped with rotatable adjusting screw rod 10, the adjusting screw rod 10 is threaded through on flap seat 7 and is threadedly coupled with upper flap seat 7, described The lower end of first connecting seat 1 and the second connecting seat 2 is equipped with the second connector 4, and the lower end of second connector 4, which is equipped with down, hangs Seat 8, second connector 4 are equipped with gearbox 12, and the motor 11 is mounted on gearbox 12 and is driven with gearbox 12 The output shaft of connection, the gearbox 12 is equipped with gear 13, and the gear 13 engages connection, first connection with rack 14 The front end of seat 1 is equipped with holder 21, and the holder 21 is equipped with rotatable turntable 22, fixed hook 23 is equipped in the turntable 22, The lower part and top of the connecting plate 24 are respectively equipped with slot 25 and through-hole 27, first fixing bolt 26 pass through slot 25 with The front end of turntable 22 is fixedly connected, and the second fixing bolt 28 is equipped in the through-hole 27, the front end of first connector 3 is equipped with The upper and lower part of first mounting plate 31, first mounting plate 31 is respectively equipped with axis body 32 and datum line 35, the axis body 32 Central axis overlapped with datum line 35, be arranged with body 33 on the axis body 32, the body 33 is equipped with pointer 34, described When first connector 3 is at horizontality, the central axis of pointer 34 is overlapped with datum line 35, and first mounting plate 31 is equipped with Protective cover 36, the axis body 32 are equipped with the blocking body 37 that blocking body 33 falls off, and the blocking body 37 is set on axis body 32, The connecting plate 24 is equipped with protrusion 29, the front end of the turntable 22 be equipped with raised 29 matched holding tanks 30, described the The cross section of one connector 3 is H-shaped shape, and the upper flap seat 7 includes pedestal 71, several first bearings 72 and hanging ring 73, described The upper end of pedestal 71 is equipped with hanging ring 73, and the pedestal 71 is on the outside of the upper end of the first connector 3 and inside is equipped with first bearing 72, the quantity of the fixed mechanism 6 is four, and the fixed mechanism 6 is solid including threaded rod 61, the first fixing nut 62, second Determine nut 63, section 64, graduation mark 65,66, two fixed bodies 67 of the second mounting plate and mounting bracket 68, is set on the turning set 5 There are mounting bracket 68, the threaded rod 61 to be threaded through on mounting bracket 68 and turning set 5, the threaded rod 61 is in the upper end of mounting bracket 68 Outside and inside are respectively equipped with the first fixing nut 62 and the second fixing nut 63, and the threaded rod 61 is equipped with section 64, institute It states section 64 and is equipped with graduation mark 65, the rear end of the threaded rod 61 is equipped with the second mounting plate 66 in turning set 5, and described second The rear end of mounting plate 66 is equipped with fixed body 67, and the working face of the fixed body 67 is arcuate shape, the upper end of the threaded rod 61 Equipped with groove 20, the cross section of the groove 20 is regular polygon shape, first connecting seat, 1 and second connecting seat 2 it is interior Wall is fixed with supporting rack 15 by fixing bolt 16, is set on support frame as described above 15 there are two bearing body 17, the turning set 5 exists Circular positioning body 18 is equipped between two bearing bodies 17, the positioning body 18 is fixed by fastening bolt and turning set 5 to be connected It connects, support frame as described above 15 includes installation axle 151 and connecting shaft 152, and the installation axle 151 and connecting shaft 152 are integrally formed machine Structure, the both ends of the installation axle 151 are equipped with bearing body 17, the inner wall of first connecting seat, 1 and second connecting seat 2 be equipped with The matched inserting groove of the insertion end of connecting shaft 152 19.
The course of work of the present invention:
During the work time, suspender belt both ends are distinguished for a kind of Multifunctional installation apparatus of screw shaft of ship hydraulic nut of the present invention It is fixedly connected with upper flap seat 7 and lower flap seat 8, slings mounting device and be set on screw shaft of ship hydraulic nut, and according to hydraulic pressure spiral shell Female outer diameter adjusts fixed mechanism 6, makes while 6 fixed hydraulic nut of fixed mechanism and ensures hydraulic nut and turning set 5 with one heart, and fixed mechanism 6 can be adjusted when adjusting according to graduation mark 65, and accuracy is high, improves the locating speed of hydraulic nut, Then suspender belt is unloaded, the suspension hook of hoisting device is directly hooked on upper flap seat 7, is then sling, and by rotating adjusting screw rod 10 It is adjusted, until the finger of pointer 34 drives gearbox 12 to work on datum line 35, then by motor 11, gearbox 12 passes through tooth The mating band of wheel 13 and rack 14 is moved turning set 5 and is rotated, and turning set 5 drives hydraulic nut rotation until being screwed into place, and waits for hydraulic pressure spiral shell After the completion of mother stretches, the second fixing bolt 28 is threadedly coupled with the retainer of hydraulic nut, then by slide fastener one end of chain block Hang on fixed hook 23, and as needed slide fastener on turntable 22 around several circles, then chain block is pulled to pass through zipper strip Turn disk 22 rotates, and turntable 22 drives the retainer of hydraulic nut to be locked by connecting plate 24, compared with prior art, can It is easy to use, manpower is saved, installation effectiveness is high, easy to adjust quick.
Above-described embodiment is the description of the invention, is not limitation of the invention, it is any to simple transformation of the present invention after Scheme all belong to the scope of protection of the present invention.

Claims (9)

1. a kind of Multifunctional installation apparatus of screw shaft of ship hydraulic nut, it is characterised in that:Including the first connecting seat (1), second Connecting seat (2), the first connector (3), the second connector (4), turning set (5), several fixed mechanisms (6), upper flap seat (7), under Flap seat (8), two mounting bases (9), adjusting screw rod (10), motor (11), gearbox (12), gear (13), rack (14), holder (21), turntable (22), fixed hook (23), connecting plate (24), several slots (25), several first fixing bolts (26), Ruo Gantong Hole (27), several second fixing bolts (28), the first mounting plate (31), axis body (32), body (33), pointer (34) and datum line (35), rotatable turning set (5), the turning set (5) are installed on first connecting seat (1) and the second connecting seat (2) Rack (14) and the circumferentially fixed mechanism (6) of shape distribution, institute are equipped between the first connecting seat (1) and the second connecting seat (2) The upper end for stating the first connecting seat (1) and the second connecting seat (2) is equipped with the first connector (3), is set on first connector (3) There are slidable upper flap seat (7), the front and rear of first connector (3) to be equipped with mounting base (9), the mounting base (9) be equipped with rotatable adjusting screw rod (10), the adjusting screw rod (10) be threaded through on flap seat (7) and with upper flap seat (7) It is threadedly coupled, the lower end of first connecting seat (1) and the second connecting seat (2) is equipped with the second connector (4), and described second connects The lower end of junctor (4) is equipped with lower flap seat (8), and second connector (4) is equipped with gearbox (12), motor (11) installation It is sequentially connected on gearbox (12) and with gearbox (12), the output shaft of the gearbox (12) is equipped with gear (13), institute It states gear (13) and engages connection with rack (14), the front end of first connecting seat (1) is equipped with holder (21), the holder (21) It is equipped with rotatable turntable (22), is equipped with fixed hook (23) in the turntable (22), the lower part of the connecting plate (24) and upper Portion is respectively equipped with slot (25) and through-hole (27), and first fixing bolt (26) passes through the front end of slot (25) and turntable (22) It is fixedly connected, the second fixing bolt (28) is equipped in the through-hole (27), the front end of first connector (3) is equipped with the first peace The upper and lower part of loading board (31), first mounting plate (31) is respectively equipped with axis body (32) and datum line (35), the axis body (32) central axis is overlapped with datum line (35), and body (33) is arranged on the axis body (32), is set on the body (33) There is pointer (34), when first connector (3) is at horizontality, the central axis of pointer (34) is overlapped with datum line (35).
2. a kind of Multifunctional installation apparatus of screw shaft of ship hydraulic nut as described in claim 1, it is characterised in that:Described One mounting plate (31) is equipped with protective cover (36).
3. a kind of Multifunctional installation apparatus of screw shaft of ship hydraulic nut as described in claim 1, it is characterised in that:The axis Body (32) is equipped with the blocking body (37) that blocking body (33) falls off, and the blocking body (37) is set on axis body (32).
4. a kind of Multifunctional installation apparatus of screw shaft of ship hydraulic nut as described in claim 1, it is characterised in that:The company Fishplate bar (24) is equipped with raised (29), and the front end of the turntable (22) is equipped with and raised (29) matched holding tank (30).
5. a kind of Multifunctional installation apparatus of screw shaft of ship hydraulic nut as described in claim 1, it is characterised in that:Described The cross section of one connector (3) is H-shaped shape.
6. a kind of Multifunctional installation apparatus of screw shaft of ship hydraulic nut as described in claim 1, it is characterised in that:On described Flap seat (7) includes pedestal (71), several first bearings (72) and hanging ring (73), and the upper end of the pedestal (71) is equipped with hanging ring (73), the pedestal (71) is on the outside of the upper end of the first connector (3) and inside is equipped with first bearing (72).
7. a kind of Multifunctional installation apparatus of screw shaft of ship hydraulic nut as described in claim 1, it is characterised in that:It is described solid The quantity for determining mechanism (6) is four, and the fixed mechanism (6) includes threaded rod (61), the first fixing nut (62), the second fixation Nut (63), section (64), graduation mark (65), the second mounting plate (66), two fixed bodies (67) and mounting bracket (68), described turn Dynamic set (5) is equipped with mounting bracket (68), and the threaded rod (61) is threaded through on mounting bracket (68) and turning set (5), the screw thread Bar (61) is on the outside of the upper end of mounting bracket (68) and inside is respectively equipped with the first fixing nut (62) and the second fixing nut (63), The threaded rod (61) is equipped with section (64), and the section (64) is equipped with graduation mark (65), after the threaded rod (61) End is equipped with the second mounting plate (66) in turning set (5), and the rear end of second mounting plate (66) is equipped with fixed body (67), described The working face of fixed body (67) is arcuate shape, and the upper end of the threaded rod (61) is equipped with groove (20), the groove (20) Cross section is regular polygon shape.
8. a kind of Multifunctional installation apparatus of screw shaft of ship hydraulic nut as described in claim 1, it is characterised in that:Described The inner wall of a connecting seat (1) and the second connecting seat (2) is fixed with supporting rack (15), support frame as described above by fixing bolt (16) (15) it is set on there are two bearing body (17), the turning set (5) is equipped with circular positioning body between two bearing bodies (17) (18), the positioning body (18) is fixedly connected by fastening bolt with turning set (5).
9. a kind of Multifunctional installation apparatus of screw shaft of ship hydraulic nut as claimed in claim 8, it is characterised in that:The branch Support (15) includes installation axle (151) and connecting shaft (152), and the installation axle (151) and connecting shaft (152) are integrally formed machine The both ends of structure, the installation axle (151) are equipped with bearing body (17), the inner wall of first connecting seat (1) and the second connecting seat (2) It is equipped with and the matched inserting groove of insertion end (19) of connecting shaft (152).
CN201610676298.7A 2016-08-16 2016-08-16 A kind of Multifunctional installation apparatus of screw shaft of ship hydraulic nut Active CN106181345B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610676298.7A CN106181345B (en) 2016-08-16 2016-08-16 A kind of Multifunctional installation apparatus of screw shaft of ship hydraulic nut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610676298.7A CN106181345B (en) 2016-08-16 2016-08-16 A kind of Multifunctional installation apparatus of screw shaft of ship hydraulic nut

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CN106181345A CN106181345A (en) 2016-12-07
CN106181345B true CN106181345B (en) 2018-09-21

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Application Number Title Priority Date Filing Date
CN201610676298.7A Active CN106181345B (en) 2016-08-16 2016-08-16 A kind of Multifunctional installation apparatus of screw shaft of ship hydraulic nut

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Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201235928Y (en) * 2008-07-09 2009-05-13 扬帆集团有限公司 Installation apparatus for installing hydraulic nut at watercraft tail shaft
CN101774120B (en) * 2009-12-29 2012-02-15 广州文冲船厂有限责任公司 Device for installing tail shaft nuts of ship
KR101437775B1 (en) * 2013-04-18 2014-09-11 조남섭 Device for assembling rudder of ship
CN204195213U (en) * 2014-06-27 2015-03-11 大连船舶重工集团有限公司 The propeller hydraulic nut erecting device of adjustable supporting support point is set
CN204321570U (en) * 2014-11-17 2015-05-13 江门市南洋船舶工程有限公司 A kind of mounting tool of ship hydraulic nut

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