CN207326858U - A kind of dynamic and static ring assemblies synchronization attaching/detaching apparatus of stern shaft seal gland - Google Patents
A kind of dynamic and static ring assemblies synchronization attaching/detaching apparatus of stern shaft seal gland Download PDFInfo
- Publication number
- CN207326858U CN207326858U CN201721277947.2U CN201721277947U CN207326858U CN 207326858 U CN207326858 U CN 207326858U CN 201721277947 U CN201721277947 U CN 201721277947U CN 207326858 U CN207326858 U CN 207326858U
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- screw
- end cap
- screw rod
- pin
- static components
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Abstract
The utility model discloses a kind of dynamic and static ring assemblies synchronization attaching/detaching apparatus of stern shaft seal gland, which includes screw-thread bush, stent, earrings, screw rod, pin and packing ring, and ancillary equipment is moving ring assembly, static components, end cap and main shaft；Stent is fixed with main shaft after being closed up by two semi-rings, and screw-thread bush carries out axial limiting by journal stirrup, and the endoporus of screw rod and screw-thread bush is thread fitting, and earrings is to be threadedly coupled with screw rod and moving ring assembly；Spring is housed between static components and end cap, pin sequentially passes through static components and end cap, the front end of pin has the threaded hole coordinated with screw rod, screw rod matching thread bushing is connected after passing through packing ring with pin, pretightning force between static components and end cap is adjusted by rotary screw, screw rod, screw-thread bush and packing ring are unloaded after static components are contacted with moving ring assembly and completes assembling.The utility model can solve the problems, such as that current stern shaft seal gland mounts and dismounts difficulty caused by elastic compensating function is preposition.
Description
Technical field
The utility model belongs to marine screw shaft sealing device attaching/detaching apparatus, and in particular to a kind of stern shaft seal gland rotating ring group
Part attaching/detaching apparatus synchronous with static components, for meet stern shaft seal gland elastic compensating function it is preposition after dismounting demand.
Background technology
Screw shaft of ship sealing device is the critical seal for preventing external dynamic sea from entering cabin at stern tube shaft and stern shaft hub perforation
Equipment.In recent ten years, various stern shaft seal glands constantly emerge, with its leakage rate is few, service life is long, easy to underwater maintenance
The advantages that, the packing box seal fallen behind has been phased out, has promoted the technological progress of naval vessel platform.However, due to it under water
Work, working environment is severe, and it is complicated to influence the factor of service life, and the structure of device is relatively complicated, installing and dismounting with
Maintaining have relatively be strict with, once therefore device break down or damage, gently then ship must suspend, halt production wait lies up
Repair, heavy then stern tube shaft lubricating oil, which leaks, causes the pollution loss of water environment, so large and medium-sized screw shaft of ship sealing device is ship
Propulsion system designs and it uses one of critical component of management.
Stern shaft seal gland is a kind of water lubrication sealing device, makees the rotating ring and quiet of relative friction movement by a pair of of end face
Ring is sealed.Traditional stern shaft seal gland, its moving ring assembly are typically secured on axis, its circumferential direction is rotated with axis, it is axial then
The elastic compensating function of device is provided by flexible member such as spring, on the one hand such a design proposes the installing and dismounting of device
More inappeasable strict demand, on the other hand may then cause the trackability of moving ring assembly bad, so as to influence the reliable of device
Property even security.At present generally static components are placed in using by the elastic compensating function of device in the design of stern shaft seal gland
In, i.e. elastic compensating function is preposition, although this solves above-mentioned servo-actuated sex chromosome mosaicism, to moving ring assembly and axis, static components
Synchronous dismounting between end cap proposes requirements at the higher level, this is also the current key issue for restricting stern shaft seal gland technological progress
One of.
Utility model content
In view of this, the utility model provides a kind of dynamic and static ring assemblies synchronization attaching/detaching apparatus of stern shaft seal gland, can
Solve the problems, such as that current stern shaft seal gland mounts and dismounts difficulty caused by elastic compensating function is preposition.
A kind of dynamic and static ring assemblies synchronization attaching/detaching apparatus of stern shaft seal gland, the device include screw-thread bush, stent, earrings,
Screw rod, pin and packing ring, ancillary equipment are moving ring assembly, static components, end cap and main shaft；
The stent is fixed by the outer circumference surface that two semi-rings close up afterwards with main shaft, and branch is extended radially out on stent
Ear, the screw-thread bush are freely rotated in the card slot of journal stirrup, and card slot carries out axial limiting, the screw rod and spiral shell to screw-thread bush
The endoporus of line bushing is thread fitting, and the earrings is to be threadedly coupled with screw rod and moving ring assembly；The static components and end
Spring is housed, the pin sequentially passes through static components and end cap, and the front end of pin has the screw thread coordinated with screw rod between lid
Hole, screw rod matching thread bushing be connecteds after passing through packing ring with pin, pin and static components and end cap be respectively fixedly connected and
The relation of clearance fit, adjusts the pretightning force between static components and end cap, when static components and rotating ring by rotary screw
Screw rod, screw-thread bush and packing ring are unloaded after component touch and completes assembling.
Further, the bottom of the stent has boss, which coordinates with the circumferential recess on main shaft outer circumference surface,
Realize the fixation of stent and main shaft.
Further, the journal stirrup on the stent is for four and in circumferential uniformly distributed.
Further, the throughhole portions of the pin and end cap realize sealing by the sealing cover being fixed on end cap, close
It is rubber seal that capping is internal, can effectively prevent seawater from flowing into fore body from stern.
Beneficial effect：
1st, the critical piece screw-thread bush and screw rod of dismantling device, can be used for the dismounting that moving ring assembly and stationary ring are set up at the same time
It is versatile with installation, the standby redundancy quantity of real ship on the one hand can be reduced, on the other hand can reduce tearing open for stern shaft seal gland
Fill difficulty and duration.
2nd, when moving ring assembly dismounts, stent is fixed on main shaft in the form of two semi-rings, and original system need to only add in main shaft
Work circumferential recess and the uniformly distributed threaded hole of moving ring assembly processing, can realize and be docked with attaching/detaching apparatus, therefore reduce original system
The suitability transformation degree of system, reliability are high.Meanwhile screw-thread bush is fixed on stent in the form of uniformly distributed, can effectively improve
The synchronous installation accuracy of static components.
3rd, when static components dismount, by controlling the amount of being threaded between screw rod and pin, it is convenient to static components
Compression degree between end cap is controlled, avoid static components and moving ring assembly occur in dismounting friction it is secondary collide with show
As so as to improve the reliability of device.In addition, above-mentioned pin feature is smaller for the destructiveness of end cap, and it is easy to seal, together
When but also as stern shaft seal gland abrasion amount measuring use, function concentrate, it is easy to use.
Brief description of the drawings
Fig. 1 is the structure composition schematic diagram of the utility model；
Fig. 2 is the A direction views of Fig. 1；
Fig. 3 is the partial enlarged view of Fig. 1；
Fig. 4 seals schematic diagram for static components pin portion.
Wherein：1- screw-thread bushes, 2- screw rods, 3- stents, 4- earrings, 5- moving ring assemblies, 6- static components, 7- main shafts, 8-
End cap, 9- pins, 10- packing rings, 11- sealing covers, 12- sealing rings.
Embodiment
With reference to the accompanying drawings and examples, the utility model is described in detail.
As shown in Figure 1, the utility model provides a kind of dynamic and static ring assemblies synchronization attaching/detaching apparatus of stern shaft seal gland, should
Device includes screw-thread bush 1, stent 3, earrings 4, screw rod 2, pin 9, packing ring 10 and the moving ring assembly 5 adaptable with it, quiet
Ring assemblies 6, end cap 8 and main shaft 7；
Wherein, screw-thread bush 1, screw rod 2, stent 3 and earrings 4 are used for the dismounting of moving ring assembly 5, screw-thread bush 1, screw rod 2
It is used for the dismounting of static components 6 with packing ring, and screw-thread bush and screw rod can be universally used in the dismounting of dynamic and static ring assemblies.Moving ring assembly 5
During dismounting, the stent 3 is axially fixed on main shaft 7 by two halves loop type, and the earrings is threadedly connected on moving ring assembly,
The screw-thread bush shares four, is circumferentially distributed in the card slot of 3 upper journal of stent, and a diagonal is twisted at the same time by two people
On screw-thread bush 1 and alternately another diagonal operation, move axially screw rod 2, so as to fulfill the same of moving ring assembly 5
Step dismounting.When static components dismount, the screw-thread bush 1 is fixed on the end cap 8 of stern shaft seal gland by packing ring and screw rod,
To be threadedly coupled between the screw rod 2 and the pin 9 of static components 6, the left and right sides totally two screw rods 2 are rotated at the same time by two people,
Make to reach the state for uniformly compressing or loosening between the end face of static components 6 and end cap 8, so as to fulfill synchronously tearing open for static components 6
Dress.
Specific installation process is as follows：After main shaft 7 and other related equipment centering are fixed, it is close just to possess stern tube shaft
The mounting condition of seal apparatus, and successively carry out the synchronous installation of moving ring assembly 5 and static components 6.Moving ring assembly 5 is carried out first
Installation, has completed the assembling of moving ring assembly 5 and has realized Primary Location, screw-thread bush 1, screw rod 2 and earrings 4 are assembled into one at this time
Body, and be mounted as a whole on the journal stirrup of stent 3.As shown in Fig. 2, the stent 3 of two halves formula is fixed on main shaft 7 by fastener 13
On, and the boss of 3 bottom of stent is corresponded to the groove of main shaft 7.Earrings 4 is screwed into the bolt hole of moving ring assembly 5, so far completed
The preparation of moving ring assembly installation.The card slot of bushing and stent upper journal, which is formed, to be coordinated, and twists screw-thread bush 1, screw rod passes through
Earrings is fixed with moving ring assembly 5, therefore screw rod can only promote moving ring assembly 5 to move along the axial of main shaft 7, need two people to exist at this time
Being operated at the same time in diagonal positions, two people's the amount of screwing should be synchronous, to prevent 5 clamping stagnation of stop ring assemblies, the operation on two diagonal
Should alternately until moving ring assembly 5 reaches the position of installation keyway, it be completed after 5 both ends of moving ring assembly installation limited location snap ring dynamic
The installation of ring assemblies.After the installation of moving ring assembly 5 is completed, above-mentioned frock is dismantled, carries out the installation of static components 6.Such as Fig. 3 institutes
Show, packing ring 10, screw-thread bush 1 and screw rod 2 are installed in 8 through hole of end cap corresponding to pin 9, at left and right sides of synchronous rotary
Static components 6 are slowly pushed into end cap 8 and are in tension by two screw rods 2, meanwhile, in order to avoid moving ring assembly 5 and stationary ring
Component 6 collides with during subsequent installation, static components 6 suitably can be tightened certain distance to fore body.So far complete quiet
The integral installation of ring assemblies 6 and end cap 8, static components are moved to the left at moving ring assembly so that moving ring assembly 5 and stationary ring group
The end face of part 6 is in contact, dismounting packing ring 10, screw-thread bush 1 and screw rod 2, and the pretightning force of spring is passed to dynamic by static components 6
Ring assemblies 5, then carry out the installment works such as follow-up packing seal.
Moving ring assembly 5 and the dismantlement work of static components 6 are carried out according to above-mentioned inverse process.
As shown in figure 4, when completing the installation of static components 6 or routine use, pin 9 and the throughhole portions of end cap 8 are led to
Cross the sealing cover 11 being fixed on end cap 8 and realize sealing function, the inside of sealing cover 11 is rubber seal 12, can effectively prevent sea
Water flows into fore body from stern.
In conclusion the above is only the preferred embodiments of the present utility model only, the utility model is not intended to limit
Protection domain.Where within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on, should all wrap
It is contained within the scope of protection of the utility model.
Claims (4)
- A kind of 1. dynamic and static ring assemblies synchronization attaching/detaching apparatus of stern shaft seal gland, it is characterised in that the device include screw-thread bush, Stent, earrings, screw rod, pin and packing ring, ancillary equipment are moving ring assembly, static components, end cap and main shaft；The stent is fixed by the outer circumference surface that two semi-rings close up afterwards with main shaft, and journal stirrup is extended radially out on stent, institute State screw-thread bush to be freely rotated in the card slot of journal stirrup, card slot carries out screw-thread bush axial limiting, and the screw rod is served as a contrast with screw thread The endoporus of set is thread fitting, and the earrings is to be threadedly coupled with screw rod and moving ring assembly；The static components and end cap it Between spring is housed, the pin sequentially passes through static components and end cap, and the front end of pin has the threaded hole coordinated with screw rod, spiral shell Bar matching thread bushing is connected after passing through packing ring with pin, and pin is respectively to be fixedly connected to match somebody with somebody with gap with static components and end cap The relation of conjunction, the pretightning force between static components and end cap is adjusted by rotary screw, when static components and moving ring assembly connect Screw rod, screw-thread bush and packing ring are unloaded after touch completes assembling.
- 2. the dynamic and static ring assemblies synchronization attaching/detaching apparatus of stern shaft seal gland as claimed in claim 1, it is characterised in that the branch The bottom of frame has boss, which coordinates with the circumferential recess on main shaft outer circumference surface, realizes the fixation of stent and main shaft.
- 3. the dynamic and static ring assemblies synchronization attaching/detaching apparatus of stern shaft seal gland as claimed in claim 1, it is characterised in that the branch Journal stirrup on frame is for four and in circumferential uniformly distributed.
- 4. the dynamic and static ring assemblies synchronization attaching/detaching apparatus of stern shaft seal gland as claimed in claim 1, it is characterised in that the pin The throughhole portions of nail and end cap are realized by the sealing cover being fixed on end cap to be sealed, and is rubber seal inside sealing cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721277947.2U CN207326858U (en) | 2017-09-29 | 2017-09-29 | A kind of dynamic and static ring assemblies synchronization attaching/detaching apparatus of stern shaft seal gland |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721277947.2U CN207326858U (en) | 2017-09-29 | 2017-09-29 | A kind of dynamic and static ring assemblies synchronization attaching/detaching apparatus of stern shaft seal gland |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207326858U true CN207326858U (en) | 2018-05-08 |
Family
ID=62367855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721277947.2U Expired - Fee Related CN207326858U (en) | 2017-09-29 | 2017-09-29 | A kind of dynamic and static ring assemblies synchronization attaching/detaching apparatus of stern shaft seal gland |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207326858U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107571189A (en) * | 2017-09-29 | 2018-01-12 | 中国船舶重工集团公司第七〇九研究所 | A kind of dynamic and static ring assemblies synchronization attaching/detaching apparatus of stern shaft seal gland |
-
2017
- 2017-09-29 CN CN201721277947.2U patent/CN207326858U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107571189A (en) * | 2017-09-29 | 2018-01-12 | 中国船舶重工集团公司第七〇九研究所 | A kind of dynamic and static ring assemblies synchronization attaching/detaching apparatus of stern shaft seal gland |
| CN107571189B (en) * | 2017-09-29 | 2023-06-27 | 中国船舶重工集团公司第七一九研究所 | Synchronous dismounting device for dynamic and static ring components of stern shaft sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180508 Termination date: 20190929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |