CN110202526A - A kind of tail shaft nuts of ship dismantling device and assembly and disassembly methods - Google Patents
A kind of tail shaft nuts of ship dismantling device and assembly and disassembly methods Download PDFInfo
- Publication number
- CN110202526A CN110202526A CN201910446372.XA CN201910446372A CN110202526A CN 110202526 A CN110202526 A CN 110202526A CN 201910446372 A CN201910446372 A CN 201910446372A CN 110202526 A CN110202526 A CN 110202526A
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- Prior art keywords
- nut
- copper sheathing
- shaft
- dismantling device
- steel
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 94
- 239000010959 steel Substances 0.000 claims abstract description 94
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 65
- 229910052802 copper Inorganic materials 0.000 claims abstract description 65
- 239000010949 copper Substances 0.000 claims abstract description 65
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 11
- 229910000754 Wrought iron Inorganic materials 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 208000010392 Bone Fractures Diseases 0.000 description 3
- 206010017076 Fracture Diseases 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 240000009087 Crescentia cujete Species 0.000 description 1
- 235000005983 Crescentia cujete Nutrition 0.000 description 1
- 235000009797 Lagenaria vulgaris Nutrition 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention discloses a kind of tail shaft nuts of ship dismantling device and assembly and disassembly methods, setting can be with the co-rotational copper sheathing of tail shaft nuts by being located in steel shaft for the dismantling device, and ball bearing is set between the copper sheathing and steel shaft, nut and the copper sheathing generated frictional resistance when rotating around steel shaft can be effectively reduced, under square one can the tail shaft nuts bigger to weight dismount, the tail shaft nuts of ship that maximum can be 3 tons to weight dismounts, strong applicability；The assembly and disassembly methods will not damage the screw thread of nut in disassembly process, while the screw-in back-out operation of nut is more light, is conducive to save staff's physical strength and time.
Description
Technical field
The present invention relates to shipbuilding technical fields, and in particular to a kind of tail shaft nuts of ship dismantling device and dismounting side
Method.
Background technique
It when repairing ship, needs to open and inspect parts thereof, wherein for marine rear shaft propeller tail
For axis nut, weight generally in the range of 0.3-3 tons, therefore its ease out and screw in etc. dismounting work must use it is dedicated
Type tooling carries out.
At present on large ship stern tube shaft hydraulic nut mounting means are as follows: hanging ring is fixed on hydraulic nut, with pulling calabash
Reed drives wirerope to hang drawing hanging ring, and hydraulic nut hanging to installation site is installed to by the hand steered dragging of several installation personnels
On the bolt of large ship tailing axle, finally hydraulic nut is further screwed by wirerope using chain block or crane.
Due to the limitation of hydraulic nut installation site on large ship tailing axle, hydraulic nut does not have crane work when rising to installation site
Space, so drawing can only be carried out hanging using chain block, but this meeting so that installed on hydraulic nut the position of hanging ring by compared with
Big power damages hydraulic nut, or even be broken so that stress is excessively concentrated herein；And need hydraulic nut and bolt
It is axial to just, needing several installation personnels cooperations to expend physical strength and time when being rotatablely installed hydraulic nut, installation quality is not yet
It can guarantee.
Documents 1 (CN103522256A) disclose a kind of special installation tool of large ship tailing axle hydraulic nut,
Fig. 1 is please referred to, Fig. 1 is the structural schematic diagram of marine rear shaft special installation tool in the prior art, described dedicated by as shown in the figure
Installation tool includes main body and the trapeze and pin shaft that are fixed in main body, and the trapeze and pin shaft are all cylindrical, the sunpender
With hanging drawing portion and having externally threaded blocking portion, the blocking portion is located at the one end of the trapeze far from the main body, described
The diameter of blocking portion is less than the diameter for hanging drawing portion；Described hang is set with casing in drawing portion, gear is set on the blocking portion
Plate is provided with the nut to match with the external screw thread on the blocking portion on the right side of the baffle；Rolling is set on the pin shaft
Cylinder and the retaining ring on the right side of roller, offer the through-hole that split pin passes through, the opening pins position on the retaining ring and pin shaft
In in the through-hole.
Trapeze described in above-mentioned marine rear shaft special installation tool and pin shaft be vertical welding on the body, three sections of welderings
The formula structure of connecing will lead to there is region of stress concentration in installation tool main body, in the biggish nut of lifting weight in weld
There can be the risk of fracture, lead to the interruption of maintenance engineering, economic loss is caused even to cause personal wound to field personnel
Evil, there are security risks；In addition, the program is that described sleeve pipe is sheathed on and hangs in drawing portion, it is flat by its realization that horizontally slips
The adjusting of weighing apparatus, while the roller is arranged on pin shaft, is rotated and is installed together with hydraulic nut by roller, in order to bear spiral shell
The material that the rotary inertia that female biggish weight and its rotation generate, described sleeve pipe and roller must use intensity bigger,
It is also required to biggish volume simultaneously, therefore its self weight will increase, increases difficulty when hanging drawing and nut rotation.In addition described
To be arranged connection between roller and pin shaft, contact surface coefficient of friction is larger, the pressure that nut generates roller when installing in addition,
Further increase the coefficient of friction between roller and pin shaft, when rotation can generate huge frictional force between the two, to work
The physical strength and time loss of personnel is excessive.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art and defect, the present invention provides a kind of tail shaft nuts of ship to dismount work
Tool has the advantages that installation process will not damage nut thread when big easy to operate, intensity, scope of application Datong District.
The application is to reach above-mentioned purpose by the following technical programs:
A kind of tail shaft nuts of ship dismantling device, spy include steel plate, steel shaft, copper sheathing and bearing group, and the steel plate is
Integral molding and there is hook formation, several hanging ring holes are arranged in one end, and the other end is fixedly connected with the steel shaft；It is described
Copper sheathing is sheathed in the steel shaft；The bearing group is assemblied in the steel shaft and between steel shaft and copper sheathing.
Compared with the existing technology, tail shaft nuts of ship dismantling device provided by the present invention, can be with tailing axle by setting
The copper sheathing that nut is rotated together about the steel shaft, and ball bearing is set between the copper sheathing and steel shaft, it can effectively reduce
Nut and the copper sheathing generated frictional resistance when being rotated around steel shaft, tail shaft nuts that can be bigger to weight under square one
It is dismounted, the maximum tail shaft nuts of ship that can be 3 tons to weight dismounts, strong applicability；It will not be right in disassembly process
The screw thread of nut damages, at the same nut screw-in screw out operation it is more light, be conducive to save staff's physical strength and
Time.
Further, the steel plate is in U-shape.
Further, the steel shaft include be sequentially connected and diameter be sequentially increased, cylindrical steel shaft main body, first
Interconnecting piece and second connecting portion, the second connecting portion are connect with the steel plate.
Further, the bearing group includes several ball bearings for being sheathed on the steel shaft main body, each spin axis
Several steel balls for including inner ring, outer ring and being set between inner and outer ring are contracted, wherein outer ring and copper sheathing are fitted close, can be with copper
Set rotates synchronously, and inner ring and steel shaft are fitted close, and is fixed in the steel shaft main body；The copper sheathing includes that cylinder and first are convex
Ring, first bulge loop are extended inwardly to form by the inner surface for being located at cylinder one end, and first bulge loop is set to the first company
The radial outside of socket part and between the bearing group and the second connecting portion.
It further, further include the locating piece limited to bearing group.
Further, the locating piece includes the positioning meson being sheathed in the steel shaft main body and described fixed for limiting
The circlip of position meson, the positioning meson are located at the outside of bearing group, and the steel shaft main body is equipped with cyclic annular the be arranged
Two grooves, the circlip are embedded in second groove and are located at the axially external of the positioning meson.
Further, the locating piece further includes the positioning sleeve being sheathed in the steel shaft main body, and the locating piece also wraps
Include the positioning sleeve being sheathed in the steel shaft main body, and its wherein a side end face or both sides of the face with the ball bearing inner ring
It is fixedly connected.The positioning sleeve avoids the ball bearing from moving between the copper sheathing and steel shaft for filling space.
Further, the copper sheathing and steel shaft are circumferentially being equipped with gap with axial, can effectively reduce the copper sheathing rotation
The frictional resistance generated when turning with steel shaft, while stop insurance being provided when copper sheathing moves backward；The positioning sleeve, positioning meson
It is clearance fit with steel shaft, copper sheathing, effectively mitigating frictional force, working as copper sheathing and nut spin occurs during rotary work simultaneously
When bearing explosion damage, total weight can be gone on positioning meson and positioning sleeve moment, be become slideably from rolling form,
Quality accident caused by preventing because of greater impact.
It further, further include O-ring；The outer surface upper annular of the first connecting portion is provided with the first groove, the O
Type circle matches with first groove, is sealed to the gap between copper sheathing and steel shaft first connecting portion, to avoid external
Sundries and moisture enter, and impact to dismantling device.
In addition, being torn open the present invention also provides a kind of tail shaft nuts of ship assembly and disassembly methods using above-mentioned tail shaft nuts of ship
Holding tool is dismounted, the specific steps of which are as follows:
1) in pin insertion nut pin hole, nut back rotation is made to make its loosening opposite with tailing axle by mobile pin；
2) it when nut eases out also several screw threads and tailing axle fitting, selects the hanging ring hole as suspension centre and drawing is hung in use
Tool makes to be in equilibrium state by the dismantling device, and the copper sheathing is moved in nut；
3) net weight that pull tool makes copper sheathing bear nut is hung in adjustment；
4) continue to be inserted into nut pinhole with pin to pull nut and rotate in a circumferential direction and ease out backward, the copper sheathing is revolved with nut
Turn, is hung on the dismantling device after nut and tailing axle spindle nose are detached from；
5) nut, i.e., be first hung on the dismantling device, make copper sheathing by reverse operating by the above process when nut is installed
The net weight for bearing nut screws in nut by nut to positive tailing axle and by mobile pin.
Compared with the existing technology, tail shaft nuts of ship dismantling device and assembly and disassembly methods provided by the present invention have following
The advantages of and the utility model has the advantages that
1) steel plate of hook formation is hung by using integral type, steel shaft is welded in one end, relative to multisection type welding structure, by
Power is more uniform, and region of stress concentration is led to the problem of when can be effectively prevented from stress and then leads to fracture；
2) by the way that ball bearing is arranged between the copper sheathing and steel shaft, the ball bearing outer ring turns with copper sheathing is synchronous
Dynamic, the inner ring is fixedly connected with the steel shaft, and the setting of ball bearing can effectively reduce nut and copper sheathing is revolved around steel shaft
Generated frictional resistance when turning, with the bigger tail shaft nuts of weight are able to bear under prior art square one, be able to satisfy
Weight is in 3 tons of tail shaft nuts of ship below, strong applicability；The screw-in back-out operation of nut is more light simultaneously, is conducive to save
Save staff's physical strength and time.
3) relative to casing described in documents 1 be set in it is described hang drawing portion, by the side for moving left and right adjustment
Formula, the present invention is by being arranged several hanging ring holes, by selecting wherein one or two to be just able to achieve to dismantling device realization pair
The adjusting of balance can effectively mitigate the self weight of dismantling device, keep operation more easy while can reduce hoisting difficulty, reduce
Security risk.
In order to better understand and implement, the invention will now be described in detail with reference to the accompanying drawings.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of marine rear shaft special installation tool in the prior art
Fig. 2 is the structural schematic diagram of tail shaft nuts of ship dismantling device of the present invention；
Fig. 3 is the structural schematic diagram of the steel shaft；
Fig. 4 is the structural schematic diagram of the copper sheathing；
Fig. 5 is the structural schematic diagram of the positioning sleeve；
Fig. 6 is the structural schematic diagram of the positioning meson；
Fig. 7 is the Local map of a-quadrant in Fig. 2.
In figure: steel plate 10；Steel shaft 20；Copper sheathing 30；Bearing group 40；Locating piece 50；
Steel plate: hanging ring hole 12；
Steel shaft: steel shaft main body 21；First connection 22；Second connecting portion 23；First groove 24；Second groove 25；O-ring
26；
Copper sheathing: first connecting portion 32；
Bearing: inner ring 42；Outer ring 44；Steel ball 46；
Locating piece: positioning sleeve 52；Position meson 54；Circlip 56.
Specific embodiment
Embodiment 1
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", " hard straight ", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.
Referring to figure 2., Fig. 2 is the structural schematic diagram of tail shaft nuts of ship dismantling device of the present invention.As shown, institute
State tail shaft nuts of ship dismantling device comprising steel plate 10, steel shaft 20, copper sheathing 30, bearing group 40 and locating piece 50, the steel plate
10 form for integral type and have hook formation.Specifically, the steel plate is U-shaped, several hanging ring holes 12 are arranged in the upper end,
The number in the hanging ring hole can be adjusted according to the actual situation, be in the present embodiment 3；10 other end of steel plate and institute
Steel shaft 20 is stated to be fixedly connected；The copper sheathing 30 is sheathed in the steel shaft 20；The bearing group 20 is assemblied in the steel shaft 20
And between steel shaft 20 and copper sheathing 30.
Referring to figure 3., Fig. 3 is the structural schematic diagram of the steel shaft, as shown, the steel shaft 20 include figure in by a left side to
Steel shaft main body 21, first connecting portion 22 and the second connecting portion 23 that the right side is sequentially connected and diameter is sequentially increased, cylindrical, institute
Second connecting portion 22 is stated to connect with the steel plate 10.22 upper annular of first connecting portion is provided with the first groove 24 and O shape
Circle 26, the O-ring 26 matches with first groove 24, plays the role of preventing foreign debris and water from entering gap,
Damage is generated to avoid suspension hook；The steel shaft main body 21 of stating is additionally provided with the second groove 25.
Referring to figure 4., Fig. 4 is the structural schematic diagram of the copper sheathing, and the copper sheathing 30 includes cylinder and the first bulge loop 32,
First bulge loop 32 is extended inwardly to form by the inner surface for being located at cylinder one end, and first bulge loop 32 is set to the first company
The radial outside of socket part 22 and between the bearing group 30 and the second connecting portion 23.
The bearing group 40 includes that several are sheathed on the ball bearing of the steel shaft main body 21, and each ball bearing includes
Inner ring 42, outer ring 44 and several steel balls 46 being set between inner and outer ring, the number of the ball bearing 40 can be according to being pacified
The nut weight of dress is adjusted, and is in the present embodiment 3.The outer ring 44 is fitted close with copper sheathing 30, can be with copper sheathing
30 rotate synchronously, and the inner ring 42 is fitted close with steel shaft 20, are fixed in the steel shaft main body 21, do not rotate.
Referring to figure 5. and Fig. 6, Fig. 5 and Fig. 6 are the positioning sleeve and the structural schematic diagram for positioning meson respectively.It is described fixed
Position part includes positioning sleeve 52, positioning meson 54 and circlip；52 1 end face of positioning sleeve and one of ball bearing 40
Inner ring 42 be fixedly connected or both ends of the surface are in contact with the inner ring 42 of two ball bearings 40 respectively, be in the present embodiment rear
Person, the positioning sleeve 52 avoid ball bearing 40 from moving for filling space；The positioning meson 54 is located at bearing group 40
Outside, be to be fixedly connected with steel shaft 20,40 inner ring 42 of ball bearing；The circlip is embedded in second groove
25 and be located at it is described positioning meson 54 it is axially external；The positioning sleeve 52 and positioning meson 54 combine can be to bearing group 40
It is limited, mobile in turn result in occurs between the steel shaft 20 and copper sheathing 30 to avoid the ball bearing 40 and falls off.
Fig. 7 is please referred to, Fig. 7 is the partial enlarged view of a-quadrant in Fig. 2.As shown, the copper sheathing 30 is with steel shaft 20 in week
Gap (i.e. a and b in figure) is equipped with to axial；The positioning sleeve 30 and copper sheathing 30, steel shaft main body 21, ball bearing outer ring 44
Between be clearance fit (i.e. c and d in figure), the positioning meson 54 is also clearance fit with copper sheathing 30, ball bearing outer ring 44
(i.e. e and f in figure), the ball bearing outer ring 44 and first connecting plate of steel shaft are clearance fit (i.e. g in figure), above-mentioned
Gap can effectively reduce each rotatable parts (copper sheathing 30, ball bearing outer ring 44) and each fixation member (spin axis in the course of work
Hold inner ring 42, positioning sleeve 52, positioning meson 54, steel shaft first connecting portion 22 and second connecting portion 23) between the friction resistance that generates
Power；In addition, gap a can also provide stop insurance when copper sheathing 30 moves backward；Simultaneously when copper sheathing 30 and nut are in rotary work
When occurring the explosion damage of ball bearing 40 in the process, total weight can be gone on positioning sleeve 52 and positioning meson 54 moment, from
Rolling form becomes slideably, preventing because of quality accident caused by crossing large impact.
When work, chain block and the dismantling device are connected by steel wire or rope, by select one of them or
The hanging ring hole 12 of two combinations carries out the balance adjustment of the dismantling device, is then moved the dismantling device using chain block
It moves to required position；The copper sheathing 30 is placed in the nut to be dismantled, adjustment chain block tears the stress of copper sheathing 30 open
The net weight of the nut unloaded enables manpower easily to move nut；Nut pin is then inserted by using pin
Hole, the pin match with nut pin hole, are in the present embodiment rod iron, rotate nut by mobile rod iron, institute
It states copper sheathing to be rotated around steel shaft therewith, and then realizes the disassembling operations that the screw-in of nut screws out.
In addition, being torn open the present invention also provides a kind of tail shaft nuts of ship assembly and disassembly methods using above-mentioned tail shaft nuts of ship
Holding tool is dismounted, the specific steps of which are as follows:
1) nut and propeller pine in rod iron insertion nut pin hole, make nut back by manpower movement rod iron from rear
Rotation makes its loosening opposite with the tailing axle；
2) when nut is being eased out there are also when the screw thread of 40-50 and tailing axle fitting, setting chain block connects right above nut
The tail shaft nuts of ship dismantling device is connect, chain block pulley blocks is adjusted and the copper sheathing is placed in nut, by selecting it
One or both of combined hanging ring hole realize the adjusting that balances to the dismantling device as suspension centre；
3) adjustment chain block pulley blocks enable the stress of copper sheathing for the net weight of nut dismantled or make manpower
Nut is easily moved；
4) rod iron insertion nut pinhole is pulled nut and rotated in a circumferential direction and eased out backward, the copper sheathing is revolved with nut around steel shaft
Turn, is hung on the dismantling device copper sheathing after nut and tailing axle spindle nose are detached from；
5) propeller tailing axle is eased out to place under repair；Reverse operating by the above process when installation, i.e., by nut to positive tailing axle,
Screw in screw thread.
Compared with the existing technology, tail shaft nuts of ship dismantling device and assembly and disassembly methods provided by the present invention have following
The advantages of and the utility model has the advantages that
1) steel plate of hook formation is hung by using integral type, steel shaft is welded in one end, relative to multisection type welding structure, by
Power is more uniform, and region of stress concentration is led to the problem of when can be effectively prevented from stress and then leads to fracture；
2) by the way that ball bearing is arranged between the copper sheathing and steel shaft, the ball bearing outer ring turns with copper sheathing is synchronous
Dynamic, the inner ring is fixedly connected with the steel shaft, and the setting of ball bearing can effectively reduce nut and copper sheathing is revolved around steel shaft
Generated frictional resistance when turning, with the bigger tail shaft nuts of weight are able to bear under prior art square one, be able to satisfy
Weight is in 3 tons of tail shaft nuts of ship below, strong applicability；The screw-in back-out operation of nut is more light simultaneously, is conducive to save
Save staff's physical strength and time.
3) relative to casing described in documents 1 be set in it is described hang drawing portion, by the side for moving left and right adjustment
Formula, the present invention is by being arranged several hanging ring holes, by selecting wherein one or two to be just able to achieve to dismantling device realization pair
The adjusting of balance can effectively mitigate the self weight of dismantling device, keep operation more easy while can reduce hoisting difficulty, reduce
Security risk.
The invention is not limited to above embodiment, if not departing from the present invention to various changes or deformation of the invention
Spirit and scope, if these changes and deformation belong within the scope of claim and equivalent technologies of the invention, then this hair
It is bright to be also intended to encompass these changes and deformation.
Claims (10)
1. a kind of tail shaft nuts of ship dismantling device, it is characterised in that: including steel plate, steel shaft, copper sheathing and bearing group, the steel
Plate is that integral type forms and has hook formation, several hanging ring holes are arranged in one end, and the other end is fixedly connected with the steel shaft；
The copper sheathing is sheathed in the steel shaft；The bearing group is assemblied in the steel shaft and between steel shaft and copper sheathing.
2. tail shaft nuts of ship dismantling device according to claim 1, it is characterised in that: the steel plate is in U-shape.
3. tail shaft nuts of ship dismantling device according to claim 1, it is characterised in that: the steel shaft includes being sequentially connected
And diameter is sequentially increased, cylindrical steel shaft main body, first connecting portion and second connecting portion, the second connecting portion and institute
State steel plate connection.
4. tail shaft nuts of ship dismantling device according to claim 3, it is characterised in that: the bearing group includes several
It is sheathed on the ball bearing of the steel shaft main body, each ball bearing includes inner ring, outer ring and is set between inner and outer ring
Several steel balls, wherein outer ring and copper sheathing are fitted close, and can be rotated synchronously with copper sheathing, and inner ring and steel shaft are fitted close, and are fixed on
In the steel shaft main body；The copper sheathing includes cylinder and the first bulge loop, and first bulge loop is by being located in cylinder one end
Surface extends inwardly to form, and first bulge loop is set to the radial outside of first connecting portion and is located at the bearing group and described
Between second connecting portion.
5. tail shaft nuts of ship dismantling device according to claim 4, it is characterised in that: further include limiting bearing group
The locating piece of position.
6. tail shaft nuts of ship dismantling device according to claim 5, it is characterised in that: the locating piece includes being sheathed on
Positioning meson in the steel shaft main body and the circlip for limiting the positioning meson, the positioning meson are located at bearing
The outside of group, the steel shaft main body are equipped with the second groove of cyclic annular setting, and the circlip is embedded in second groove
And it is located at the axially external of the positioning meson.
7. tail shaft nuts of ship dismantling device according to claim 6, it is characterised in that: the locating piece further includes being arranged
Positioning sleeve in the steel shaft main body, and its wherein a side end face or both sides of the face with the ball bearing inner ring is fixed connects
It connects.
8. tail shaft nuts of ship dismantling device according to claim 7, it is characterised in that: the copper sheathing and steel shaft are in circumferential direction
Gap is equipped with axial；The positioning sleeve, positioning meson and steel shaft, copper sheathing are clearance fit, and the positioning sleeve, positioning are situated between
It is sub that there is gap between adjacent ball bearing outer ring.
9. marine rear shaft dismantling device according to claim 3, it is characterised in that: further include O-ring；First connection
The outer surface upper annular in portion is provided with the first groove, and the O-ring matches with first groove.
10. a kind of tail shaft nuts of ship assembly and disassembly methods, it is characterised in that: use any marine rear shaft of claim 1-9
Nut dismounting tool is dismounted, and is specifically comprised the following steps:
1) in pin insertion nut pin hole, nut back rotation is made to make its loosening opposite with tailing axle by mobile pin；
2) when nut eases out also several screw threads and tailing axle fitting, the hanging ring hole is selected as suspension centre and pull tool is hung in use
Make to be in equilibrium state by the dismantling device, and the copper sheathing is moved in nut；
3) net weight that pull tool makes copper sheathing bear nut is hung in adjustment；
4) continuing to be inserted into nut pinhole with pin to pull nut and rotate in a circumferential direction and ease out backward, the copper sheathing is rotated with nut, when
Nut and tailing axle spindle nose are hung on the dismantling device after being detached from；
5) nut, i.e., be first hung on the dismantling device, bear copper sheathing by reverse operating by the above process when nut is installed
The net weight of nut screws in nut by nut to positive tailing axle and by mobile pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910446372.XA CN110202526A (en) | 2019-05-27 | 2019-05-27 | A kind of tail shaft nuts of ship dismantling device and assembly and disassembly methods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910446372.XA CN110202526A (en) | 2019-05-27 | 2019-05-27 | A kind of tail shaft nuts of ship dismantling device and assembly and disassembly methods |
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| Publication Number | Publication Date |
|---|---|
| CN110202526A true CN110202526A (en) | 2019-09-06 |
Family
ID=67788847
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910446372.XA Pending CN110202526A (en) | 2019-05-27 | 2019-05-27 | A kind of tail shaft nuts of ship dismantling device and assembly and disassembly methods |
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| CN (1) | CN110202526A (en) |
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| CN201573043U (en) * | 2009-12-29 | 2010-09-08 | 广州文冲船厂有限责任公司 | Device for mounting nuts on marine tail shaft |
| CN102756267A (en) * | 2012-05-21 | 2012-10-31 | 大连嘉禾自控技术有限公司 | Distribution diameter automatic pitch-control five-axle wheel screwing equipment |
| CN202639391U (en) * | 2012-07-06 | 2013-01-02 | 沈阳鼓风机集团股份有限公司 | Chain milling head |
| CN103522256A (en) * | 2013-10-18 | 2014-01-22 | 青岛造船厂有限公司 | Special mounting tool for large ship propeller shaft hydraulic nut and mounting method |
| CN203653055U (en) * | 2013-12-16 | 2014-06-18 | 浙江申达机器制造股份有限公司 | Large nut hoisting and installing device of injection moulding machine |
| CN108069338A (en) * | 2017-12-21 | 2018-05-25 | 中国船舶重工集团公司第七〇九研究所 | A kind of stern tube shaft nut auxiliary installation device and installation method |
| CN207723846U (en) * | 2018-01-22 | 2018-08-14 | 枝江盛懋船业有限公司 | A kind of marine rear shaft propeller clamp nut assembly tooling |
| CN208323152U (en) * | 2018-04-10 | 2019-01-04 | 江南造船(集团)有限责任公司 | Marine propeller hydraulic nut mounting device |
| CN210550902U (en) * | 2019-05-27 | 2020-05-19 | 广州文冲船舶修造有限公司 | Ship tail shaft nut dismounting tool |
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- 2019-05-27 CN CN201910446372.XA patent/CN110202526A/en active Pending
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| CN201573043U (en) * | 2009-12-29 | 2010-09-08 | 广州文冲船厂有限责任公司 | Device for mounting nuts on marine tail shaft |
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| CN202639391U (en) * | 2012-07-06 | 2013-01-02 | 沈阳鼓风机集团股份有限公司 | Chain milling head |
| CN103522256A (en) * | 2013-10-18 | 2014-01-22 | 青岛造船厂有限公司 | Special mounting tool for large ship propeller shaft hydraulic nut and mounting method |
| CN203653055U (en) * | 2013-12-16 | 2014-06-18 | 浙江申达机器制造股份有限公司 | Large nut hoisting and installing device of injection moulding machine |
| CN108069338A (en) * | 2017-12-21 | 2018-05-25 | 中国船舶重工集团公司第七〇九研究所 | A kind of stern tube shaft nut auxiliary installation device and installation method |
| CN207723846U (en) * | 2018-01-22 | 2018-08-14 | 枝江盛懋船业有限公司 | A kind of marine rear shaft propeller clamp nut assembly tooling |
| CN208323152U (en) * | 2018-04-10 | 2019-01-04 | 江南造船(集团)有限责任公司 | Marine propeller hydraulic nut mounting device |
| CN210550902U (en) * | 2019-05-27 | 2020-05-19 | 广州文冲船舶修造有限公司 | Ship tail shaft nut dismounting tool |
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Effective date of registration: 20200102 Address after: 511462 building 6, No. 2, No. 10, QIHANG Road, Nansha District, Guangzhou City, Guangdong Province (production management building and auxiliary building of electromechanical comprehensive workshop) (office only) Applicant after: Guangzhou Wenchong Shipbuilding Co., Ltd Address before: 511462 No. 10, sailing Road, Nansha District, Guangdong, China, No. 1, 4 (office building), written by myself, Guangzhou Applicant before: The boat in Guangzhou Wenchong Dock Company Limited |