CN209622050U - A kind of hydraulic propeller axis mechanical seal - Google Patents
A kind of hydraulic propeller axis mechanical seal Download PDFInfo
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- CN209622050U CN209622050U CN201822239271.9U CN201822239271U CN209622050U CN 209622050 U CN209622050 U CN 209622050U CN 201822239271 U CN201822239271 U CN 201822239271U CN 209622050 U CN209622050 U CN 209622050U
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Abstract
The utility model discloses a kind of hydraulic propeller axis mechanical seals, including the primary seal, lip envelope and gas-flow closure being sequentially sleeved in shaft；Axially connecting mounting flange and seal chamber flange are arranged in shaft, primary seal is located at one end of seal chamber flange, the other end of seal chamber flange is connect with mounting flange, and lip seals the connecting end surface position for being located at mounting flange and seal chamber flange, and the inner sidewall of lip envelope is fitted in shaft；Gas-flow closure includes pneumatic tyre, pneumatic tyre is located on the inner hole of mounting flange, and pneumatic tyre is equipped with annular convex platform close to shaft side, the aeration aperture being connected to pneumatic tyre is additionally provided on mounting flange, when risk of leakage occurs for primary seal, it is filled with gas from aeration aperture, pneumatic tyre expands so that annular convex platform inside contracts and is sealed in shaft outer surface and prevents seawater from entering propeller cabin.A kind of hydraulic propeller axis mechanical seal disclosed by the utility model has multiple-sealed structure, can guarantee stable, reliable sealing performance, and convenient for disassembly and assembly.
Description
Technical field
The present invention relates to technical field of mechanical, specifically a kind of hydraulic propeller axis mechanical seals.
Background technique
Hydraulic propeller is a kind of novel driving tool of ship, it and Ship Power Equipment together, are used to propelling ship.
Hydraulic propeller is that the spout part of propulsive mechanism is under water, and the reaction force driving ship generated using injection water is advanced
A kind of propeller.It is made of water pump, pipeline, suction inlet and spout etc., and the injection direction of water flow can be changed by spout come real
The manipulation of spot oceangoing ship.Hydraulic propeller is used as power with water pump, water is sucked from hull bottom hole, through side of a ship portion pipe, water after ship
Direction discharge, the reaction force by water carry out propelling ship.
Traditional marine propeller sealing has following several forms, and one is the mechanical seals of rubber bellows；It is a kind of
It is that individual 3 or 4 lips are sealed envelope；One is traditional packing seals.
Above-mentioned traditional sealing has the following deficiencies:
1, traditional rubber bellows mechanical seal, there are digestion periods for rubber bellows, and when replacement sealing, need entirety
It replaces together, maintenance cost is high.Sealing performance is reduced with the aging of bellows.
2, individual 34 lip envelope, is suitable for slow-speed of revolution axis (the general revolving speed of hydraulic propeller is very high), the service life is short.
3, traditional packing seal, leakage rate is big, and service life is short, and consumption shaft power is big.
Summary of the invention
The technical problems to be solved by the present invention are: providing a kind of be able to solve at least one in the defect that above-mentioned traditional machine is sealed
The hydraulic propeller axis mechanical seal of kind defect, and it is convenient for disassembly and assembly, and sealing performance is stable, reliable.
The technical solution used in the present invention is: providing a kind of hydraulic propeller axis mechanical seal, including successively it is arranged
Primary seal, lip envelope and gas-flow closure in shaft；Axially connecting mounting flange and sealing are arranged in the shaft
Cell method is blue, and the primary seal is located at one end of seal chamber flange, and the other end of the seal chamber flange is connect with mounting flange, institute
The connecting end surface position that lip envelope is located at mounting flange and seal chamber flange is stated, and the inner sidewall of lip envelope is fitted in shaft；It is described
Gas-flow closure includes pneumatic tyre, and pneumatic tyre is located on the inner hole of mounting flange, and the pneumatic tyre is equipped with annular convex platform close to shaft side,
It is additionally provided with the aeration aperture being connected to pneumatic tyre on mounting flange, when risk of leakage occurs for primary seal, gas is filled with from aeration aperture,
Pneumatic tyre expands so that annular convex platform inside contracts and is sealed in shaft outer surface and prevents seawater from entering propeller cabin.
Further, the primary seal includes moving ring assembly and static components, and the seal chamber flange is far from Method for Installation
Blue one end is equipped with the first mounting groove of indent, and the tail portion sealing of the static components is fitted in the first mounting groove, and quiet
Compensation component is equipped between the tail end face of ring assemblies and the bottom surface of the first mounting groove, the moving ring assembly and shaft driving connect
It connects, the seal face of the moving ring assembly is bonded to form primary seal flour milling with the seal face of static components.
Preferably, the compensation component includes several springs and several guide pins, the bottom edge of first mounting groove
Several spring eyes circumferentially are uniformly provided with, one end of the guide pin is actively installed in spring eye, and the other end of guide pin is equipped with platform
Rank ring, and step ring acts against on static components end face；Several springs are set on guide pin, and one end of spring is located at
In spring eye, the other end is acted against on step ring.
Preferably, the static components include stationary ring, stationary seat and first press fitting cover board, the one of the stationary seat
End sliding is located in the first mounting groove, and the other end is equipped with the second mounting groove of indent, and one end of the stationary ring is fitted in the second peace
In tankage, first annular boss is equipped with outside the stationary ring, first press fitting cover board one end is connected on stationary seat, the other end
It is pressed together on first annular raised head face, and is additionally provided with sealing ring between the first press fitting cover board and first annular boss.
As improved, the seal chamber flange is on the end face of the first mounting groove side circumferentially arranged with multiple limits
Block, multiple limited blocks are equipped with limit pressing plate, and the limit pressing plate press fitting is fitted on stationary seat end face.Stationary seat and close
Setting limited block carries out limit connection between envelope cell method orchid, so that the stationary ring of static components and seal chamber flange at a set of integrated form
Component, the mounting structure of modular improve efficiency convenient for the installation and removal of entire mechanical seal.
Improved again, position corresponding with lip envelope is arranged with axle sleeve in the shaft, and the mounting flange is equipped with accommodating
Slot, the lip envelope is fitted in accommodation groove, and the inner hole sleeve of lip envelope is mounted in the outside of axle sleeve.After axle sleeve structure setting, there can be guarantor
It is not frayed to protect shaft outer surface.
Preferably, the moving ring assembly includes rotating ring, rotating seat and the second press fitting cover board, set on the rotating seat
There is third mounting groove, one end sealing of the rotating ring is fitted in third mounting groove, and the other end of rotating ring and stationary ring are separate
One end face paste of stationary seat closes to form primary seal flour milling；The rotating ring is equipped with the second annular convex platform, the second press fitting cover board
One end is connected on rotating seat, and the other end is pressed together on the second annular convex platform end face, and the second press fitting cover board and the second convex annular
Sealing ring is additionally provided between platform.
As improved, the mounting flange is equipped with annular groove and circumferentially close to a side end face of seal chamber flange
The multiple threaded holes being arranged, the end face of the seal chamber flange is equipped with the position limiting convex ring equipped with annular groove sealing, described
Seal chamber flange on be additionally provided with multiple through-holes, connection bolt is equipped in the through-hole, and the end for connecting bolt extends to spiral shell
In pit.
Improved again, the lateral wall of the seal chamber flange is arranged with ring sleeve, and the ring sleeve is towards rotating ring
Component direction extends up to rotating seat position.
It is improved again, adjusting bolt is additionally provided on the mounting flange, seal chamber end face of flange.
After using the above structure, compared with the prior art, the present invention has the following advantages:
1, in mechanical seal structure of the invention, other than the primary seal of sound ring assemblies composition is sealed seawater,
It is also provided with lip simultaneously to seal, the silt in seawater can be stopped to enter primary seal flour milling, effective protection flour milling and sealing ring are not
It is frayed, it improves service life, and the outside in shaft positioned at primary seal is also additionally arranged one of gas-flow closure as emergency
Sealing is inflated once risk of leakage occurs for primary seal into gas-flow closure, and pneumatic tyre medial surface is promoted in gas-flow closure to be sealed in turn
On axis, interim emergency sealing is carried out, prevents seawater from entering cabin.
2, all increase an annular gasket between rotating seat and shaft and between axle sleeve and shaft, holding screw is avoided to damage
Hurt axis.
3, in sealing structure by the way of stationary ring compensation, setting compensating element, in this way will not be rotated with shaft, be compensated
Active force is more steady, to guarantee the stability of sealing performance.
4, in the outermost end of stationary ring cavity, a ring sleeve is increased, it is therefore an objective to prevent sealing surface once and have and is slight
Leakage, the droplet come out from sealing surface are disorderly got rid of；Another effect, prevents people from accidentally hand is protruded into or being touched the machine being currently running
Envelope, avoids personal injury.
5, be provided on mounting flange and seal chamber flange and be adjusted axially bolt, when welded hull deforms to
Adjust sealing geometric tolerance.
6, rotating ring, the design of stationary ring both ends clamped-in style prevent biggish vibration when vessel motion from causing carborundum ring abrasion gold
Belong to drive pin, so as to cause seal failure.
Detailed description of the invention
Fig. 1 is a kind of schematic perspective view of hydraulic propeller axis mechanical seal of the invention.
Fig. 2 is a kind of cross-sectional view of hydraulic propeller axis mechanical seal of the invention.
Fig. 3 is a kind of partial sectional view at another angle of hydraulic propeller axis mechanical seal of the invention.(main display limit
Position block)
Fig. 4 is the structural schematic diagram of the static components in the present invention.
Fig. 5 is a kind of partial sectional view at another angle of hydraulic propeller axis mechanical seal of the invention.(main display peace
Fill the adjusting bolt on flange)
Fig. 6 is a kind of partial sectional view at another angle of hydraulic propeller axis mechanical seal of the invention.It (mainly shows close
Seal the adjusting bolt on cell method orchid)
Wherein, 100- shaft, 101- lip envelope, 102- pneumatic tyre, 102.1- annular convex platform, 1- mounting flange, 1.1- aeration aperture,
1.2- accommodation groove, 1.3- annular groove, 1.4- threaded hole, 2- seal chamber flange, the first mounting groove of 2.1-, 2.2- spring eye,
2.3- position limiting convex ring, 2.4- through-hole, 3- stationary ring, the first annular boss of 3.1-, 4- stationary seat, the second mounting groove of 4.1-, 5- first
Press fitting cover board, 6- limited block, 6.1- limit pressing plate, 7- spring, 8- guide pin, 8.1- step ring, 9- axle sleeve, 10- rotating ring,
The second annular protrusion of 10.1-, 11- rotating seat, 11.1- third mounting groove, 12- second are pressed cover board, 13- connection bolt, 14- ring
Shape casing, 15- adjust bolt, 16- annular gasket, 17- stop pin, 17.1- trundle, 18- threaded, the protection of 19- nylon
Set, 20- adjusting nut, 21- drive bolt, 22- fastening bolt, 23- inlet opening.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and specific embodiments.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation " " connects
Connect ", " equipped " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.In addition, term " first ", " second ", " third " are used for description purposes only, and should not be understood as indicating
Or imply relative importance.
As shown in figs. 1 to 6, a kind of hydraulic propeller axis mechanical seal provided by the invention, including be sequentially sleeved at and turn
Primary seal, lip envelope 101 and gas-flow closure, three parts mechanism on axis 100 are sleeved on outside shaft 100 and have sequentially formed three
Seal structures, the most importantly mechanical seal structure of primary seal, lip envelope are outside framework oil seal.
Axially connecting mounting flange 1 and seal chamber flange 2 are arranged in shaft 100, herein axial connection, specifically
Refer to, mounting flange 1 is equipped with annular groove 1.3 and circumferentially arranged multiple spiral shells close to a side end face of seal chamber flange 2
Pit 1.4, the end face of seal chamber flange 2 is equipped with the position limiting convex ring 2.3 equipped with the sealing of annular groove 1.3, in position limiting convex ring
2.3 outside is further sleeved with sealing ring, so that forming seal point in this position after mounting flange 1 is connect with seal chamber flange 2.
It is additionally provided with multiple through-holes 2.4 on seal chamber flange 2, connection bolt 13 is equipped in through-hole 2.4, and the end for connecting bolt 13 extends
Into threaded hole 1.4, for mounting flange 1 and seal chamber flange 2 to be linked together.
Primary seal is located at one end of seal chamber flange 2, and the other end of seal chamber flange 2 is connect with mounting flange 1, lip envelope
101 are located at the connecting end surface position of mounting flange 1 and seal chamber flange 2, and the inner sidewall of lip envelope 101 is fitted in shaft 100
On.
In the present embodiment, as shown in Figure 1,3, at least one is equipped on the side wall of sealing ring flange 2 and is connected to its inner cavity
Inlet opening 23, and it is high by the inlet opening 23 to be passed through the insulating liquid pressure ratio seawater pressure in 2 cavity of seal chamber flange.Into
Fluid apertures 23 is either one or more to be evenly arranged on 2 outside of seal chamber flange.
The effect of insulating liquid: first is that insulating sea water, prevents external seawater from entering seal chamber；Since there are one in extraneous seawater
The particulate matters such as a little silts, if into the flour milling of primary seal, it will sealing flour milling inordinate wear is caused, is leaked, so
Pass through setting lip before contact with sea water to sealing surface and seal 101, the particulate matters such as sand grains can be stopped, prevent it from entering sealing
Flour milling improves the service life of sealing surface.Second is that the effect of lubrication sealing surface.
Specifically, lip, which seals 101 structures, can be located at mounting flange 1 on the end face of 2 side of seal chamber flange,
Seal chamber flange 2 can be located on the end face of 1 side of mounting flange, accommodation groove 1.2, lip envelope are equipped on mounting flange 1
101 are fitted in accommodation groove 1.2.Also, 101 corresponding positions are sealed with lip in shaft 100 and are arranged with axle sleeve 9, axle sleeve 9 passes through
Holding screw is connect with shaft 100.Damage is generated in order to avoid holding screw is pressed on 100 surface of shaft simultaneously, so in axis
An annular gasket 16 is increased between 100 outer surface of inside and shaft of set 9, the annular gasket 16 and axle sleeve 9 are fixed, this
After sample setting, fastening screw is resisted against outside annular gasket 16, to realize connection of the holding screw indirectly with shaft 100, from
And shaft outer surface is avoided to be damaged.After axle sleeve 9 is connected to 100 outside of shaft, the inner hole sleeve of lip envelope 101 is mounted in the outer of axle sleeve 9
Portion, also, the inner surface of lip envelope 101 is gently to contact with the outer surface of axle sleeve 9, because axle sleeve 9 is rotation, with lip envelope 101
There is friction in inner surface, cannot have too big magnitude of interference when so equipped, as long as light contact can stop sand grains.
Gas-flow closure includes pneumatic tyre 102, and installation cavity is equipped on the inner hole side wall of mounting flange 1, and pneumatic tyre 102 is located at installation
In the installation cavity of flange 1, and pneumatic tyre 102 close to 100 side of shaft integrally formed with annular convex platform 102.1,1 side of mounting flange
The venthole 1.1 being connected to 102 inner cavity of pneumatic tyre is additionally provided on wall, after machine envelope installs, which can connect tracheae, connect valve
Door and pressure gauge, once machine envelope leakage, i.e., openable valve are inflated for pneumatic tyre.
The mechanical seal of this structure, when risk of leakage occurs for major seal, seawater can enter cabin, at this time from logical
Gas is filled in stomata 1.1, pneumatic tyre 102 expands rapidly after inflation so that annular convex platform 102.1 inside contracts being pressed on for sealing and turns
100 outer surface of axis plays the role of sealing of temporarily meeting an urgent need, prevents seawater from entering propeller cabin.
Main seal portion, including moving ring assembly and static components, seal chamber flange 2 are equipped with far from one end of mounting flange 1
First mounting groove 2.1 of indent, the tail portion sealing of static components is fitted in the first mounting groove 2.1, and the tail of static components
Compensation component is equipped between end surface and the bottom surface of the first mounting groove 2.1, compensation component is mainly used in static components flour milling quilt
After abrasion, under the action of compensation component, the flour milling of static components is promoted to be fitted on the flour milling of moving ring assembly always, guarantees master
The sealing performance of sealing.Moving ring assembly and shaft 100 are drivingly connected, the seal face of moving ring assembly and the sealed end of static components
Face paste closes to form primary seal flour milling.In this structure, it is equipped with special threaded 18 in the bottom of the first mounting groove 2.1, in stationary ring
The tail end face of component is equipped with the pin hole being equipped with threaded 18, protects in the outer cover of threaded 18 equipped with a nylon
Set.The tail portion of static components refers to herein, and one end of sealed end flour milling is deviated from static components.
Compensation component includes several springs 7 and several guide pins 8, and the bottom of the first mounting groove 2.1 is circumferentially uniformly provided with
Several spring eyes 2.2, one end of guide pin 8 are actively installed in spring eye 2.2, and the other end of guide pin 8 is equipped with step ring 8.1,
And step ring 8.1 acts against on static components end face far from one end of guide pin 8.Several springs 7 are set in corresponding guiding
On pin 8, and one end of spring 7 is located in spring eye 2.2, and the other end acts against on the step ring 8.1 of guide pin 8.In spring 7
8 structure of guide pin is set, the run-off the straight in forced compression of spring 7 can be effectively prevented, so that spring 7 acts on stationary ring
The compensating action power of 3 tail portions is more steady.
Static components, including stationary ring 3, stationary seat 4 and the first press fitting cover board 5, one end sliding of stationary seat 4 are located at the first peace
In tankage 2.1, the other end is equipped with the second mounting groove 4.1 of indent, and one end of stationary ring 3 is fitted in the second mounting groove 4.1, quiet
First annular boss 3.1 is equipped with outside ring 3, first press fitting 5 one end of cover board is connected on stationary seat 4, and the other end is pressed together on first
On 3.1 end face of annular convex platform, specifically, one end of the first press fitting cover board 5 is pressed abd fixed on stationary ring by fastening bolt 22
On the end face of seat 3, and annular stop flanging is additionally provided on the first press fitting cover board 5, annular stop flanging is pressed together on the of stationary ring 3
On one annular convex platform, 3.1 end face, realization stationary ring 3 is fixedly connected with stationary seat 4, and in the first press fitting cover board 5 and the first ring
It is additionally provided with sealing ring between shape boss 3.1, forms sealed connection face.
This structure in the process of running, in order to enable stationary ring 3 with the flour milling frictional force of rotating ring effect under will not occur turn
It is dynamic, so be provided with stop pin 17 in the bottom of the second mounting groove 4.1, it is equipped in the bottom of stationary ring 3 and is equipped with stop pin 17
Pin hole, because the stationary ring 3 in mechanical seal generallys use silicon carbide material, and stop pin 17 is then metal material, in pin hole
Edge stress in position is frangible, so being also set with a nylon protective case 19 in the outside of stop pin 17, avoids the pin of metalwork
The pin hole marginal position for directly hitting stationary ring 3, effectively reduces the risk of 3 fragmentation of stationary ring.
Seal chamber flange 2 is on the end face of 2.1 side of the first mounting groove circumferentially arranged with multiple limited blocks 6, multiple limits
Position block 6 is equipped with limit pressing plate 6.1, and the limit press fitting of pressing plate 6.1 is fitted on 4 end face of stationary seat, and limited block 6 passes through connection
Screw is fastened on the end face of stationary seat 4.The static components of integrated form are connected into this structure with limited block 6 and fastening screw,
It is easy for removal and installation.
Moving ring assembly includes that rotating ring 10, rotating seat 11 and the second press fitting cover board 12, rotating seat 11 are equipped with third mounting groove
11.1, one end sealing of rotating ring 10 is fitted in third mounting groove 11.1, and the other end of rotating ring 10 and stationary ring 3 are far from stationary ring
One end face paste of seat 4 closes to form primary seal flour milling.
As shown in Fig. 2, moving ring assembly specifically refers to the drive connection of shaft 100, on the lateral wall of rotating seat 11
Damage is generated circumferentially arranged with multiple driving bolts 21, while in order to avoid driving bolt 21 is pressed on 100 surface of shaft, so
An annular gasket 16 is equally increased between 100 outer surface of inside and shaft of rotating seat 11, after being arranged in this way, drives spiral shell
The end of bolt 21 is acted directly against on annular gasket 16, while meeting the driving rotation of rotating seat 11 of shaft 100, is effectively kept away
It is injury-free to exempt from 100 outer surface of shaft.
Rotating ring 10 is equipped with the second annular convex platform 10.1, and second press fitting 12 one end of cover board is connected on rotating seat 11, another
End is pressed together on 10.1 end face of the second annular convex platform, and specifically, one end of the second press fitting cover board 12 passes through fastening bolt 22
It is pressed abd fixed on the end face of rotating seat 11, and is additionally provided with annular stop flanging, annular stop pressure on the second press fitting cover board 12
While being pressed together on 10.1 end face of the second annular convex platform of rotating ring 10, realization rotating ring 10 is fixedly connected with rotating seat 11, and
It is additionally provided with sealing ring between second press fitting cover board 12 and the second annular convex platform 10.1, forms sealed connection face.
In this moving ring assembly, it is equipped with trundle 17.1 in the bottom of third mounting groove 11.1, is equipped in the bottom of rotating ring 10
The pin hole being equipped with trundle 17.1, trundle 17.1 are mainly used for being driven rotating ring 10.And in trundle 17.1
Outside is equally set with a nylon protective case 19, and the pin of metalwork is avoided directly to hit the pin hole marginal position of rotating ring 10,
Effectively reduce the risk of 10 fragmentation of rotating ring.
In the present embodiment, ring sleeve 14 is arranged in the lateral wall of seal chamber flange 2, and ring sleeve 14 is towards rotating ring group
Part direction extends up to 11 position of rotating seat.The purpose of this ring sleeve 14 setting is to prevent from primary sealing area once to have slight let out
Leakage, the droplet come out from sealing face leakage are disorderly got rid of；Another effect prevents people from accidentally hand protrudes into or being touched and is currently running
Machine envelope, avoids personal injury.
In structure of the invention, it is additionally provided on mounting flange 1, seal chamber flange 2 and adjusts bolt 15.
The present invention is in mechanical seal structure, and rotating ring 10, stationary ring 3 are all made of silicon carbide material, all metal parts in addition to
Other than spring 7 is the stronger two phase stainless steel of corrosion resistance, and prior compensation part is also the part for being easy failure
Spring 7 is then to have used the better Hastelloy of corrosion resistance, to improve the service life of mechanical seal.
Mechanically-sealing apparatus installation method of the invention is as follows:
1, first mounting flange 1 is sleeved in shaft 100, it is then mobile towards 200 position of cabin cavity wall, in advance in cabin
Four parallel with shaft 100 and uniformly distributed along its circumferencial direction adjusting blocks 25 are welded on side, and on each adjusting block 25
Be respectively arranged with the positioning bolt 26 vertical with shaft 100, when mounting flange 1 close to cabin about 20mm apart from when, each adjusting block
Corresponding positioning bolt 26 can be respectively held against the outer diameter of mounting flange 1 above 25, adjust the radial position of mounting flange 1.(such as
Shown in Fig. 5)
Then the nylon adjusted the adjusting bolt 15 on mounting flange 1 on bolt 15 equipped with about 20mm long is adjusted to protect
Set 27.With the positioning bolt 26 adjusted on bolt 15 and adjusting block 25 on mounting flange 1, the parallel of mounting flange 1 is adjusted
Degree, verticality and concentricity, are tightened with fastening bolt 28 preset in cabin cavity wall 200, until 1 end face of mounting flange and cabin
The distance between cavity wall 200 is equal to the length distance of nylon protective case 27.As shown in Figure 1, being connected in fastening bolt 28 with cabin
There is also nylon protective case 27 between hole, avoids fastening bolt 28 and cabin wall from contacting, prevent electrochemical corrosion.
2, it is then cast between 1 end face of mounting flange and cabin cavity wall 200 with epoxy resin, it is complete to epoxy resin cure
It at, the adjusting bolt 15 unscrewed on mounting flange 1 gently, avoids cabin wall and adjusts bolt 15 contacting, prevent the electricity of bolt
Chemical attack.
Mounting flange 1 in this step refers to a component, i.e., gas-flow closure, lip envelope 101 are pre-installed on mounting flange 1
Etc. structures.It after the completion of equal epoxy resin cures, then by axle sleeve 9, is sleeved in shaft 100, is moved toward 200 position of cabin cavity wall
It is dynamic, until guaranteeing then the holding screw on axle sleeve 9 is tightened in relative position in 101 contact of lip envelope.Static components are set with
It is then mobile towards the position of mounting flange 1 in shaft 100, after working good to static components and mounting flange 1, pass through
Adjusting bolt 15 on seal chamber flange 2 regulates the depth of parallelism and verticality of static components, then again will with connection bolt 13
Stationary seat 4 connect fastening with mounting flange 1.This ensure that stationary ring 3 and 100 relative position of shaft, make machine envelope operation more may be used
It leans on.
3, moving ring assembly is installed, moving ring assembly is mobile toward 3 direction of stationary ring, until tightening dynamic in two sealing surface fittings
Driving bolt 21 in ring seat 11 plays transmission effect then under the action of driving bolt 21.
4, the limited block on stationary seat is unloaded, machine envelope is installed.
After standby envelope installs, it will be welded on originally on the adjusting block in cabin cavity wall 200 25 and adjusting block 25
Bolt 26 is adjusted to cut away.
Preferred embodiments of the present invention are described above, but are not to be construed as limiting the scope of the invention.This hair
Bright to be not only limited to above embodiments, specific structure is allowed to vary, all institutes in the protection scope of demand for independence of the present invention
The various change of work is within the scope of the invention.
Claims (10)
1. a kind of hydraulic propeller axis mechanical seal, it is characterised in that: the master including being sequentially sleeved on shaft (100) is close
Envelope, lip envelope (101) and gas-flow closure；Axially connecting mounting flange (1) and seal chamber are arranged in the shaft (100)
Flange (2), the primary seal are located at one end of seal chamber flange (2), the other end and mounting flange of the seal chamber flange (2)
(1) it connects, the lip envelope (101) is located at the connecting end surface position of mounting flange (1) and seal chamber flange (2), and lip envelope (101)
Inner sidewall be fitted on shaft (100)；The gas-flow closure includes pneumatic tyre (102), and pneumatic tyre (102) is located at mounting flange (1)
Inner hole on, and the pneumatic tyre (102) is equipped with annular convex platform (102.1) close to shaft (100) side, on mounting flange (1) also
Gas is filled with from aeration aperture (1.1) when risk of leakage occurs for primary seal equipped with the aeration aperture (1.1) being connected to pneumatic tyre (102)
Body, pneumatic tyre (102) expands so that annular convex platform (102.1) inside contracts and is sealed in shaft (100) outer surface and prevents seawater from entering propulsion
Device cabin.
2. a kind of hydraulic propeller axis mechanical seal according to claim 1, it is characterised in that: the primary seal packet
Moving ring assembly and static components are included, the seal chamber flange (2) is equipped with the first installation of indent far from the one end of mounting flange (1)
Slot (2.1), the tail portion sealing of the static components is fitted in the first mounting groove (2.1), and the tail end face of static components
Compensation component is equipped between the bottom surface of the first mounting groove (2.1), the moving ring assembly and shaft (100) are drivingly connected, institute
The seal face for stating moving ring assembly is bonded to form primary seal flour milling with the seal face of static components.
3. a kind of hydraulic propeller axis mechanical seal according to claim 2, it is characterised in that: the compensation component
Including several springs (7) and several guide pins (8), the bottom of first mounting groove (2.1) is circumferentially uniformly provided with several bullets
The one end in spring hole (2.2), the guide pin (8) is actively installed in spring eye (2.2), and the other end of guide pin (8) is equipped with step
Ring (8.1), and step ring (8.1) acts against on static components end face；Several springs (7) are set on guide pin (8), and
One end of spring (7) is located in spring eye (2.2), and the other end acts against on step ring (8.1).
4. a kind of hydraulic propeller axis mechanical seal according to claim 2 or 3, it is characterised in that: the stationary ring
Component includes stationary ring (3), stationary seat (4) and the first press fitting cover board (5), and one end sliding of the stationary seat (4) is located at the first peace
In tankage (2.1), the other end is equipped with the second mounting groove (4.1) of indent, and one end of the stationary ring (3) is fitted in the second mounting groove
(4.1) in, first annular boss (3.1) are equipped with outside the stationary ring (3), first press fitting cover board (5) one end is connected to quiet
In ring seat (4), the other end is pressed together on first annular boss (3.1) end face, and the first press fitting cover board (5) and first annular boss
(3.1) sealing ring is additionally provided between.
5. a kind of hydraulic propeller axis mechanical seal according to claim 4, it is characterised in that: the seal chamber flange
(2) circumferentially arranged with multiple limited blocks (6) on the end face of the first mounting groove (2.1) side, on multiple limited blocks (6)
Equipped with limit pressing plate (6.1), limit pressing plate (6.1) press fitting is fitted on stationary seat (4) end face.
6. a kind of hydraulic propeller axis mechanical seal according to claim 1, it is characterised in that: the shaft (100)
Upper position corresponding with lip envelope (101) is arranged with axle sleeve (9), and the mounting flange (1) is equipped with accommodation groove (1.2), the lip
Envelope (101) is fitted in accommodation groove (1.2), and the inner hole sleeve of lip envelope (101) is mounted in the outside of axle sleeve (9).
7. a kind of hydraulic propeller axis mechanical seal according to claim 2, it is characterised in that: the moving ring assembly
Third mounting groove is equipped with including rotating ring (10), rotating seat (11) and the second press fitting cover board (12), the rotating seat (11)
(11.1), the rotating ring (10) one end sealing be fitted in third mounting groove (11.1), the other end of rotating ring (10) with
Stationary ring (3) closes to form primary seal flour milling far from one end face paste of stationary seat (4)；The rotating ring (10) is equipped with the second annular convex platform
(10.1), second press fitting cover board (12) one end is connected on rotating seat (11), and the other end is pressed together on the second annular convex platform
(10.1) on end face, and sealing ring is additionally provided between the second press fitting cover board (12) and the second annular convex platform (10.1).
8. a kind of hydraulic propeller axis mechanical seal according to claim 1, it is characterised in that: the mounting flange
(1) side end face close to seal chamber flange (2) is equipped with annular groove (1.3) and circumferentially arranged multiple threaded holes
(1.4), the end face of the seal chamber flange (2) is equipped with the position limiting convex ring (2.3) equipped with annular groove (1.3) sealing, institute
It is additionally provided with multiple through-holes (2.4) on the seal chamber flange (2) stated, connection bolt (13) is equipped in the through-hole (2.4), and connect
The end of bolt (13) extends in threaded hole (1.4).
9. a kind of hydraulic propeller axis mechanical seal according to claim 1, it is characterised in that: the seal chamber flange
(2) lateral wall is arranged with ring sleeve (14), and the ring sleeve (14) extends up to rotating ring towards moving ring assembly direction
Seat (11) position.
10. a kind of hydraulic propeller axis mechanical seal according to claim 1, it is characterised in that: the Method for Installation
It is additionally provided on blue (1), seal chamber flange (2) end face and adjusts bolt (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822239271.9U CN209622050U (en) | 2018-12-28 | 2018-12-28 | A kind of hydraulic propeller axis mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822239271.9U CN209622050U (en) | 2018-12-28 | 2018-12-28 | A kind of hydraulic propeller axis mechanical seal |
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| Publication Number | Publication Date |
|---|---|
| CN209622050U true CN209622050U (en) | 2019-11-12 |
Family
ID=68447800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822239271.9U Active CN209622050U (en) | 2018-12-28 | 2018-12-28 | A kind of hydraulic propeller axis mechanical seal |
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| Country | Link |
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| CN (1) | CN209622050U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111661291A (en) * | 2020-04-30 | 2020-09-15 | 武汉船用机械有限责任公司 | Sealing device for pod propeller |
| CN112963541A (en) * | 2021-02-07 | 2021-06-15 | 青岛众力诚达智能科技有限公司 | Rotary sealing structure with thread pair |
-
2018
- 2018-12-28 CN CN201822239271.9U patent/CN209622050U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111661291A (en) * | 2020-04-30 | 2020-09-15 | 武汉船用机械有限责任公司 | Sealing device for pod propeller |
| CN111661291B (en) * | 2020-04-30 | 2021-11-16 | 武汉船用机械有限责任公司 | Sealing device for pod propeller |
| CN112963541A (en) * | 2021-02-07 | 2021-06-15 | 青岛众力诚达智能科技有限公司 | Rotary sealing structure with thread pair |
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