CN206394861U - Trailing axle and tube peculiar to vessel - Google Patents

Abstract

The utility model provides a kind of trailing axle and tube peculiar to vessel, head end sealing device and tail end sealing device is respectively equipped with tail pipe two ends, the structure of described tail pipe is：Outer tail pipe is connected with the socket of interior tail pipe, and the inwall of interior tail pipe and the bearing interference fit at two ends are connected, and are provided between outer tail pipe and interior tail pipe and are fixedly connected with layer.Installation method is that interior tail pipe and outer tail pipe workshop are manufactured, and front and back bearings are press-fit into place, interior tail pipe assembly is obtained；Outer tail pipe is installed after completion, and interior tail pipe assembly is attached in outer tail pipe from afterbody, interior tail pipe is adjusted into concentric to center line of shafting；Perfusion is fixedly connected with layer；The installation of trailing axle and tube peculiar to vessel is realized by above step.The utility model simplifies mounting structure, in installation process, higher positioning precision is resulted in, without bore hole.

Description

Trailing axle and tube peculiar to vessel

Technical field

The utility model is related to Ship Propeling field of components, particularly a kind of trailing axle and tube peculiar to vessel.

Background technology

The tailing axle tail pipe of spot ship particularly inland navigation craft is installed because the optimized development of shipform is very fast, is occurred in that Such as double tail, double tail finses, toed-out wry tail, whirlpool tail, a variety of ship types of three tails, it is mainly characterized by above-mentioned various line type sterns in tail The position that pipe is installed is very narrow, when entering tail pipe installation after ship outer casing finishes afterbody erecting and welding, staff Hardly enter its narrow space and carry out welding procedure, so, whole tail pipe can only be in two ends erecting and welding, and between two ends Afterbody plate floor can not be welded substantially with tail pipe, cause tail pipe and only have two ends and couple with hull, the connection at two ends is due to sky Between it is narrow and be unfavorable for control deformation.Therefore the installation of this form, quality risk greatly, carries out bore hole again in addition, pacifies Dress efficiency is low, the cycle is long.

Disappear whirlpool fin energy-saving effect it is widely used by industry, promoted quickly in a variety of ship types in recent years, but its device Installation method be connected mostly with propeller using one group of bolt, this mode on the whirlpool fin that disappears is cylindrical because needing setting bolt hole With bolt mounting groove, the overall cylindricity for the whirlpool fin that disappears is have impact on, carrying out stream at the whirlpool fin outer round surface that makes to disappear has some setbacks, resistance increase disappears Therefore whirlpool fin energy-saving effect has a greatly reduced quality.

Conventional propeller for ship is installed mostly using key connection, because the ship of Ship Life one is 20-30, long-term In long-term operation, there are key propeller axle key and keyway to be damaged in various degree, just occur when having retired less than ship scrapping more The phenomenon that propeller shaft is damaged, increases maintenance cost, security risk is high.

Therefore, utility model one kind is total beneficial to shipbuilding installation, safe and reliable and non-damageable New Tail axle, tail pipe Into.To develop the power saving features of high energy efficiency ship, reliable installation can be easy to, it is necessary to innovation greening shipbuilding key technology.

The content of the invention

Technical problem to be solved in the utility model is to provide trailing axle and tube peculiar to vessel, can solve the problem that in the prior art In the problem that tailing axle tail pipe installment work intensity is big, cycle length, risk are high, scheme preferably, additionally it is possible to which solution disappears whirlpool fin peace The problem of filling integrity problem and major diameter propeller dismounting difficulty and shafting fatigue strength.

In order to solve the above technical problems, the technical scheme that the utility model is used is：A kind of trailing axle and tube peculiar to vessel, Outer tail pipe is connected with the socket of interior tail pipe, and the inwall of interior tail pipe and the bearing interference fit at two ends are connected, in outer tail pipe and interior tail pipe Between provided with being fixedly connected with layer.

It is preferred that scheme in, the described layer that is fixedly connected is located at position close to outer tail pipe and interior tail pipe two ends.

It is preferred that scheme in, the described layer that is fixedly connected is epoxy resin.

It is preferred that scheme in, in described interior tail pipe, head end bearing block is welded to connect with connecting tube, connecting tube and tail end axle Bearing is welded to connect.

It is preferred that scheme in, be fixedly connected layer towards one end in the middle part of interior tail pipe be provided with back-up ring, in the bottom of outer tail pipe Provided with the intrusion pipe that cavity is connected between outer tail pipe and interior tail pipe, the top of outer tail pipe is provided between outer tail pipe and interior tail pipe The air hose of cavity connection.

It is preferred that scheme in, outer wall and the hull plate floor of outer tail pipe are welded to connect, and the tail end end face of interior tail pipe is provided with curved Trisection, the end face of multiple axial bolt connection tail end sealing devices, the bending segment of interior tail pipe and outer tail pipe；

The end face of multiple axial bolt connection head end sealing devices and outer tail pipe.

It is preferred that scheme in, the internal diameter of tailing axle and bearing is coordinated using gap, and the tail end of tailing axle is sequentially provided with tailing axle taper Section, tailing axle thread segment and tailing axle undergauge section；

Its intermediate tail shaft conical section assembles tight fit connection, tailing axle thread segment and hydraulic nut screw thread with propeller using hydraulic pressure Connection, tailing axle undergauge section is connected with the whirlpool fin that disappears using key and nut tightening.

It is preferred that scheme in, connected between tailing axle undergauge section and the whirlpool fin that disappears by key and nut tightening, in the tail end of tailing axle Also it is connected with the whirlpool fin nut tightening that disappears, for compressing the whirlpool fin that disappears, sealing ring is provided with the head end end face for the whirlpool fin that disappears, with hydraulic nut Between form sealing, the tail end of the whirlpool fin that disappears is provided with the inner fovea part for being used for accommodating the whirlpool fin nut that disappears, edge and the capping method of inner fovea part Orchid is tightly connected.

A kind of installation method using above-mentioned trailing axle and tube peculiar to vessel, comprises the following steps：

First, interior tail pipe and the manufacture of outer tail pipe workshop；

Interior tail pipe procedure of processing is：By the thick-walled seamless steel pipes after head end bearing block and tail end bearing block roughing with stage casing Connecting tube assembling, it is integrally welded, after the completion of front and back bearings are press-fit into place, obtain interior tail pipe assembly；

2nd, after the completion of hull general assembly, the through hole for tail pipe of going out is cut, through-hole diameter is more than diameter about 1 ~ 2mm of outer tail pipe；

3rd, after the completion of perforate, steel wire is removed, outer tail pipe via through holes load in hull, adjusts outer tail pipe positioning, position appropriate Afterwards, spot welding positioning is carried out, after the completion of positioning, specification firm welding is welded by design；It can also be used in center line of shafting school His more particularly suitable method.

4th, outer tail pipe is installed after completion, is assembled as the unassembled planking of fabrication hole；

5th, interior tail pipe assembly is attached in outer tail pipe from afterbody, interior tail pipe is adjusted concentric to center line of shafting；

6th, perfusion is fixedly connected with layer；

The installation of trailing axle and tube peculiar to vessel is realized by above step.

It is preferred that scheme in, will be identical with head end sealing device seat external diameter in head end in step 5, thickness is 25 ~ 30mm Transition disc, pre-install multiple nuts, installation bolt is connected with outer tail pipe, and transition disc covers cylindrical in interior tail pipe head end, in interior tail pipe Tail end pre-installs multiple nuts, and installation bolt is connected with outer tail pipe tail end；

Adjustment regulating bolt makes inside and outside tail pipe tentatively install positioning, is pacified according to shaft tube and tail bearing localization criteria Set position and fill epoxy resin, after treating that the stable solidification phase reaches, then remove head end transition disc, load onto head end sealing device, Tail end prepackage bolt and frock are removed, the precise positioning of interior tail pipe assembly is completed.

A kind of trailing axle and tube peculiar to vessel that the utility model is provided, by using the inside and outside tail of the monoblock type of optimization design Tubular construction, simplifies mounting process, especially in installation process, higher positioning precision is resulted in, without bore hole.And Installed between inside and outside tail pipe using poured with epoxy resin method, reliability is high.Coordinate and the whirlpool fin that disappears is installed in tailing axle tail end design specialized Tailing axle undergauge section and tightening disappear the nut of whirlpool fin, energy-conservation is disappeared the easy installation and removal of whirlpool fin, use is more reasonable.Efficient spiral shell Oar is revolved using hydraulic nut and the scheme of taper connection.Provide that the cycle is short, reliability is high, simply and easily pacify for shipbuilding Assembling structure and method, decline integrated cost, and installation risk is reduced again, crucial to develop energy-efficient, innovation greening shipbuilding Technology provides a kind of effective solution.

Brief description of the drawings

The utility model is described in further detail with reference to the accompanying drawings and examples：

Fig. 1 is integral installation structure schematic front view of the present utility model.

Fig. 2 is tailing axle head end close-up schematic view of the present utility model.

Fig. 3 is Fig. 1 B-B schematic cross-sectional views.

Fig. 4 is Fig. 1 A-A schematic cross-sectional views.

Structural representation when Fig. 5 loads and unloads for propeller in the utility model.

Fig. 6 is the overall structure diagram that the utility model is installed on hull.

Fig. 7 is schematic diagram when tail pipe and outer tail pipe are adjusted in the utility model.

In figure：Shaft coupling 1, tailing axle 2, tailing axle conical section 201, tailing axle thread segment 202, tailing axle undergauge section 203, head end sealing Device 3, tail end sealing device 3', outer tail pipe 4, interior tail pipe 5, head end bearing block 51, connecting tube 52, tail end bearing block 53, hull Floor 6, stem bearing 7, tail bearing 7' is fixedly connected with layer 8, and blast pipe 9, back-up ring 10, propeller 11, hydraulic nut 12 disappears Whirlpool fin 13, disappear whirlpool fin nut 14, scotch 15, check bolt 16, capping 17, drain tap 18, oil inlet 19, oil return opening 20, oil Groove 21, hydraulic pump 22, magnetic bases dial gauge 23, intrusion pipe 24.

Embodiment

Embodiment 1：

Initial and end orientation in the utility model is to illustrate that the orientation in accompanying drawing 1 is defined, and the right-hand member in Fig. 1 is head end or preceding End, left end is tail end or rear end.

As in Fig. 1 ~ 6, a kind of trailing axle and tube peculiar to vessel is respectively equipped with head end sealing device 3 and tail end at tail pipe two ends Sealing device 3', wherein head end sealing device 3 are provided with the oil inlet 19 and drain tap 18 of straight-through tail pipe inner chamber, for bearing Lubrication is provided.Oil return opening 20 is additionally provided with head end sealing device 3.Pipe between oil inlet 19 and drain tap 18, oil return opening 20 Road distance is very short, is easily installed.

The structure of described tail pipe is：Outer tail pipe 4 is connected with the socket of interior tail pipe 5, and interior tail pipe 5 and the bearing interference at two ends are matched somebody with somebody Connection is closed, is provided between outer tail pipe 4 and interior tail pipe 5 and is fixedly connected with layer 8.

Outer tail pipe is Integral welded structure, and the forward and backward bearing at outer tail pipe two ends is welded to connect with thick-walled seamless steel pipes, its External diameter front and back end is identical, is refined to design requirement after the completion of welding again.

It is preferred that scheme in, in described interior tail pipe 5, head end bearing block 51 is welded to connect with connecting tube 52, connecting tube 52 It is welded to connect with tail end bearing block 53.Wherein initial and tail sections bearing 7.7' is press-fit into place in workshop, to ensure installation accuracy.

It is preferred that scheme in, the described layer 8 that is fixedly connected is located at position close to outer tail pipe 4 and the two ends of interior tail pipe 5.

It is preferred that scheme in, the described layer 8 that is fixedly connected is epoxy resin.With technological progress, it is fixedly connected with layer 8 and also may be used To use other adhesives, such as phenol-formaldehyde resin modified.

It is preferred that scheme in, be provided with back-up ring 10 being fixedly connected with layer 8 towards the one end at the middle part of interior tail pipe 5, ring washer exists Workshop just with interior tail pipe erecting and welding, its external diameter ensures to be less than 15m with outer tail pipe internal diameter, in order to tail pipe in adjustment below When do not form obstruction, sponge foxing press-fits into and is compacted be made, the ring for blocking fluid again after interior tail pipe completely positioning Oxygen tree fat, in the bottom of outer tail pipe 4 provided with the intrusion pipe 24 that cavity is connected between outer tail pipe 4 and interior tail pipe 5, for irrigating ring Oxygen tree fat, the top of outer tail pipe 4 is provided with the air hose 9 that cavity is connected between outer tail pipe 4 and interior tail pipe 5, in perfusion ring Exhaust and overflow during oxygen tree fat.

Scheme more than, because interior tail pipe and two end axles bearing are integral type structure, in installation process Tailing axle rotating accuracy is easy to ensure, i.e., only need in school the center line of shafting of interior tail pipe, even if or the installation of outer tail pipe deposit In error, but by the gap in adjustment between tail pipe and outer tail pipe, the installation for remaining able to the convenient outer tail pipe of compensation is missed Difference, and be in course of adjustment, do not interfere with the installation accuracy of tailing axle.Therefore, tail pipe structure of the present utility model, for outer tail pipe Installation accuracy require it is less high, the installation accuracy between interior tail pipe and outer tail pipe can easily be accommodated, due to the He of head end bearing block 51 The positioning precision of tail end bearing block 53, is just machined in factory, and relative to the situation of scene processing, machining accuracy is significantly carried Height, without live Boring, installation difficulty is greatly reduced, and accelerates the production duration.

It is preferred that scheme such as Fig. 1 in, outer wall and the hull plate floor 6 of outer tail pipe 4 are welded to connect, the tail end end of interior tail pipe 5 Face is provided with bending segment, multiple axial bolt connection tail end sealing device 3', the bending segment of interior tail pipe 5 and outer tail pipe 4 end face；

As shown in Fig. 1,2, the end face of multiple axial bolt connection head end sealing devices 3 and outer tail pipe 4.

It is preferred that scheme such as Fig. 1 in, tailing axle 2 is connected with the inner ring of bearing, and the tail end of tailing axle 2 is sequentially provided with tailing axle conical section 201st, tailing axle thread segment 202 and tailing axle undergauge section 203；

Its intermediate tail shaft conical section 201 assembles tight fit connection, tailing axle thread segment 202 and hydraulic pressure with propeller 11 using hydraulic pressure Nut 12 is threadedly coupled.

In further preferred scheme, hydraulic pressure oil groove is provided between hydraulic nut 12 and propeller 11, in hydraulic nut 12 are provided with hydraulic oil inlet, are provided with the propeller hub conical inboard wall of propeller 11 in hydraulic pressure oil groove, the propeller hub cone of propeller 11 Hole wall is provided with hydraulic oil inlet.

In further preferred scheme, hydraulic nut front end face 12 is contacted with the rear end face of propeller 11, and hydraulic pump 22 leads to Cross pipeline valve member, the hydraulic oil inlet on pressure gauge and hydraulic nut 12 and propeller 11 to connect, standby magnetic bases dial gauge 23, Specific installation method and propeller pull up distance are carried out by factory's convention and classification society's requirement.Dismounting is carried out by factory's convention.

In further preferred scheme, connected between tailing axle undergauge section 203 and the whirlpool fin 13 that disappears by key and nut tightening, The tail end of tailing axle 2 is also connected with the whirlpool fin nut 14 that disappears, and sets stop briquetting 15 to realize retaining on whirlpool fin nut 14 disappearing, disappear whirlpool fin Nut 14 disappears whirlpool fin 13 for compression, in the head end end face for the whirlpool fin 13 that disappears provided with forming close between sealing ring, with hydraulic nut 12 Envelope, the tail end for the whirlpool fin 13 that disappears is provided with the inner fovea part for being used for accommodating the whirlpool fin nut 14 that disappears, and the edge and 17 flanges of capping of inner fovea part are close Envelope connection.

Do not splined on structure more than, tailing axle, to improve the intensity of tailing axle, later period maintenance cost can also be reduced, Installation or removal just can be realized using such as the hydraulic pressure assembly method in Fig. 4, convenient and efficient.Tailing axle rear seal is installed on In monoblock type in the capping 17 of tail pipe, service life is further extended.

Embodiment 2：

Specific manufacture, installation method are as follows：

1st, the workshop manufacture of inside and outside tailing axle tail pipe

1.1 outer tail pipes：To examine outside qualified front and back end after tail pipe steel-casting or forged steel pieces roughing with stage casing heavy wall without Stitch steel pipe assembling, it is integrally welded, welding should ensure that the concentricity at overall outer tail pipe two ends, weld it is appropriate after the outer tail pipe of entirety exist Workshop is finish-machined to design requirement, it would however also be possible to employ overall thick-walled seamless steel pipes are made.

Tail pipe in 1.2：By the heavy wall after the qualified head end bearing block 51 of inspection and the roughing of tail end bearing block 53 with stage casing Seamless steel pipe connecting tube 52 assembled, integrally welded, and the concentricity at tail pipe two ends in overall is ensured during welding, weld it is appropriate after it is overall Interior tail pipe is finish-machined to design requirement in workshop again, it would however also be possible to employ overall thick-walled seamless steel pipes are made, after the completion of by antero posterior axis Hold 7.7' to be press-fit into place in workshop, obtain the monoblock type shaft tube of the high-precision center line of shafting containing bearing, i.e., interior tail pipe is total Into.

1.3 remaining parts are manufactured by design requirement.

2nd, hull general assembly is fully completed, and the both sides of segmentation afterbody, center line of shafting in tail pipe installation are reserved with for installing The hull outside plate of the outer tail pipe of welding is not assembled, i.e., as fabrication hole, first primarily determines that axle using bracing wire method outside hull Be center line, need the stern transom plate, plate floor, the bulkhead that pass through to open in advance in all tail pipes and be easy to the steel wire through hole of bracing wire, bracing wire it Perforate draws steel wire after finishing by steel wire hole, tightens up steel wire, in rear and front end by center line of shafting adjustment to design requirement. Can also be using method in other center line of shafting schools.

3rd, after the completion of hull general assembly, hull stays about 400 ~ 600mm wide in the both sides of the axial center positioned at tail pipe construction section Outside plate not erecting and welding, as the fabrication hole for installing outer tail pipe, draw steel wire to determine center line of shafting and mark line of perforations, cutting The through hole of tail pipe out；Specially：On stern transom plate, any plate floor, bulkhead on the basis of positioning appropriate axial center's steel wire Rule using suitable method such as model or compasses, cut the through hole for tail pipe of going out, through-hole diameter is slightly larger than outer 41 ~ 2mm of tail pipe, Determined, got the small value when cutting accuracy is high with cutting accuracy, taken large values when cutting accuracy is low, used on bulkhead by the through hole line marked Reliable rational method cuts out through hole.

4th, after the completion of perforate, steel wire is removed, positioning welding hangs the lifting lug device for sending tail pipe on hull, using suitable Lifting technique loads outer tail pipe in hull through each plate floor of stern transom plate or bulkhead through hole, because the external diameter of outer tail pipe is confessed one's crime to tail For the diameter of same size, very easy can attach it to position, just in place after in tail pipe front and back end circumferentially in hull Upper 3 adjusting nuts of erecting and welding, loading bolt are stand-by, as shown in Figure 7.Again second of drawing steel wire is reset to design It is required that center line, adjustment regulating bolt positions outer tail pipe, position it is appropriate after, spot welding positioning is carried out, after the completion of positioning, by setting Meter welding specification firm welding.Survey crew monitors in real time in welding process, and the strict outer tail pipe of control deviates the mistake of shaft centre line Difference.

5th, after the completion of outer tail pipe erecting and welding, the planking of the shell side not yet completed at the body section is assembled and complete Into welding, second half planking is next assembled, this section of ship hull plate erecting and welding is completed, sealed property pass the test.

Interior tail pipe is filled within outer tail pipe by the method by outer tail pipe is installed from afterbody, new erecting and welding adjusting nut, dress Enter bolt, be initially introduced into the transition disc of head end, the transition disc of head end, the size of its external diameter, internal diameter size and head end sealing device 3 Identical, thickness is about 25-30mm, and bolt hole is identical with bearing block bolt number of openings and diameter；Again for the third time by steel wire The center line of design requirement is reset to, interior tail pipe is adjusted accurate, transition disc is pre-installed into four or more bolts and outer in head end Tail pipe head end face is connected, and using the telescopic adjustment of three bolts to the center line of shafting designed, four are pre-installed in interior tail pipe tail end Or more bolt be connected with outer tail pipe breech face.Installed at the beginning of interior tail pipe after positioning, pacify sponge foxing and be compacted, next according to tail Central siphon and tail bearing epoxy resin localization criteria " CB*Z/-321-81 " carry out epoxy resin and poured to install, and epoxy resin is the bottom of from The intrusion pipe 24 in portion is injected, and air is discharged from the blast pipe 9 at top.After treating that the stable solidification phase reaches, then remove head end transition Disk, loads onto head end sealing device seat 3', removes rear end prepackage bolt and frock, by the reinforcement of the interior tail pipe of front and back end and outer tail pipe Bolt is coated epoxy resin and fastened, and the precise positioning of interior tail pipe assembly is completed.Remaining tailing axle, forward end seal seat, sealing Device, removable coupling, back-end sealing device, hydraulic screw oar, hydraulic nut, the whirlpool fin that disappears, disappear whirlpool fin nut, each zero of pressing plate Part is installed by shop convention.

The embodiment is only preferred scheme of the present utility model, and is not construed as limitation of the present utility model, this reality Technology is special in the technical scheme that should be recorded with new protection domain with claim, including the technical scheme of claim record The equivalents levied are protection domain.Equivalent substitution i.e. within this range is improved, also in protection model of the present utility model Within enclosing.

Claims (8)

1. a kind of trailing axle and tube peculiar to vessel, it is characterized in that：Outer tail pipe（4）With interior tail pipe（5）Socket connection, interior tail pipe（5）'s Inwall and the bearing at two ends interference fit are connected, in outer tail pipe（4）With interior tail pipe（5）Between provided with being fixedly connected with layer（8）.

2. a kind of trailing axle and tube peculiar to vessel according to claim 1, it is characterized in that：Described is fixedly connected with layer（8）Position In close to outer tail pipe（4）With interior tail pipe（5）The position at two ends.

3. a kind of trailing axle and tube peculiar to vessel according to claim 1, it is characterized in that：Described is fixedly connected with layer（8）For Epoxy resin.

4. a kind of trailing axle and tube peculiar to vessel according to claim 2, it is characterized in that：Described interior tail pipe（5）In, head end Bearing block（51）With connecting tube（52）It is welded to connect, connecting tube（52）With tail end bearing block（53）It is welded to connect.

5. a kind of trailing axle and tube peculiar to vessel according to claim 4, it is characterized in that：It is being fixedly connected with layer（8）In Tail pipe（5）The one end at middle part is provided with back-up ring（10）, in outer tail pipe（4）Bottom be provided with and outer tail pipe（4）With interior tail pipe（5）Between The intrusion pipe of cavity connection（24）, outer tail pipe（4）Top be provided with and outer tail pipe（4）With interior tail pipe（5）Between cavity connect Air hose（9）.

6. a kind of trailing axle and tube peculiar to vessel according to claim 4, it is characterized in that：Outer tail pipe（4）Outer wall and hull Plate floor（6）It is welded to connect, interior tail pipe（5）Tail end end face be provided with bending segment, multiple axial bolt connection tail end sealings dresses Put（3'）, interior tail pipe（5）Bending segment and outer tail pipe（4）End face；

Multiple axial bolt connection head end sealing devices（3）With outer tail pipe（4）End face.

7. a kind of trailing axle and tube peculiar to vessel according to claim 1, it is characterized in that：Tailing axle（2）Adopted with the internal diameter of bearing Coordinated with gap, tailing axle（2）Tail end be sequentially provided with tailing axle conical section（201）, tailing axle thread segment（202）With tailing axle undergauge section （203）；

Its intermediate tail shaft conical section（201）With propeller（11）Tight fit connection, tailing axle thread segment are assembled using hydraulic pressure（202）With liquid Press nut（12）Threaded connection, tailing axle undergauge section（203）With the whirlpool fin that disappears（13）Connected using key and nut tightening.

8. a kind of trailing axle and tube peculiar to vessel according to claim 7, it is characterized in that：Tailing axle undergauge section（203）With the whirlpool that disappears Fin（13）Between connected by key and nut tightening, in tailing axle（2）Tail end also with the whirlpool fin nut that disappears（14）Tightening is connected, and is used for Compression disappears whirlpool fin（13）, in the whirlpool fin that disappears（13）Head end end face be provided with sealing ring, with hydraulic nut（12）Between formed sealing, disappear Whirlpool fin（13）Tail end be provided with and disappear whirlpool fin nut for receiving（14）Inner fovea part, the edge of inner fovea part and capping（17）Flange is close Envelope connection.