CN110219826A - A kind of container-type shaft seal of water pump for mining - Google Patents
A kind of container-type shaft seal of water pump for mining Download PDFInfo
- Publication number
- CN110219826A CN110219826A CN201910474231.9A CN201910474231A CN110219826A CN 110219826 A CN110219826 A CN 110219826A CN 201910474231 A CN201910474231 A CN 201910474231A CN 110219826 A CN110219826 A CN 110219826A
- Authority
- CN
- China
- Prior art keywords
- axle envelope
- end cap
- sealing
- sealing block
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 238000005065 mining Methods 0.000 title claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 114
- 230000000694 effects Effects 0.000 claims abstract description 10
- 239000010687 lubricating oil Substances 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 238000005461 lubrication Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 14
- 229920002396 Polyurea Polymers 0.000 claims description 13
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 12
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 12
- 239000000945 filler Substances 0.000 claims description 10
- 239000003921 oil Substances 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 7
- -1 Polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 239000007770 graphite material Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/06—Lubrication
- F04D29/061—Lubrication especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/106—Shaft sealings especially adapted for liquid pumps
- F04D29/108—Shaft sealings especially adapted for liquid pumps the sealing fluid being other than the working liquid or being the working liquid treated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a kind of container-type shaft seals of water pump for mining, more particularly to axle envelope technical field, including axis, described axis one end external activity is arranged with sealing block, the axis other end external activity is arranged with axle envelope end cap, the side of the sealing block and axle envelope end cap, which is run through, is equipped with perforation, and the axis matches with perforation, and multi-stage sealed mechanism is provided between the sealing block and axle envelope end cap；The multi-stage sealed mechanism includes seal chamber.The present invention is sealed by filling lubricating oil using the first sealing ring and the second sealing ring, the first O-ring and the second O-ring and the inside cavity formed between the plate and seal chamber of axle envelope end cap to form three-level, so that this component has Multi-level sealing structure, gas in suction pump and sealing performance when running well are fully ensured that, it is greatly improved the service life of water pump for mining, while also can avoid replacing the hard work of traditional axle envelope.
Description
Technical field
The present invention relates to axle envelope technical fields, it is more particularly related to a kind of container-type shaft seal of water pump for mining.
Background technique
Currently, the sealing means of water pump mostly use traditional mechanical seal (packing seal), but such sealing means are not easy
Even, pressing is pressed, water pump leakage rate is big, to influence the working efficiency of water pump, and replaces frequently, is not easy to operate.Due to mine
A large amount of coal dust or other minerals dust particles can be used in scenery with hills and waters, cause the sealing wear of water pump for mining very fast, the service life is short, more
The amount of changing jobs is big.
The utility model patent of 204099265 U of patent application publication CN discloses a kind of voltage regulation type collection of centrifugal pump
Dress formula mechanical shaft seal component, including mechanical seal sleeve, shaft, rotating ring, stationary ring, spring base, mechanical seal cover, the machinery are close
Pump housing seal chamber is formed between sealed cover and mechanical seal sleeve, spring base and shaft, is equipped with several on the spring base
Nozzle makes to form pressure stabilizing cavity between the nozzle, spring base and mechanical seal cover.The present invention can make outer fliud flushing body in pressure stabilizing cavity
After interior pressure stabilizing, uniformly distributed nozzle is equipped with by spring base and is uniformly rinsed on rotating ring, stationary ring end face, makes rotating ring, around stationary ring
Formed and be higher than pump housing seal chamber pressure cleaning liquid regions, by transported medium coke powder and coal dust and dynamic and static ring effectively every
It opens, to reach the service life purpose for improving mechanical shaft seal.
But it is in actual use, still there is more disadvantage, although such as container-type shaft seal, but axle envelope form is single-stage
Axle envelope, sealing effect is bad, and replacement process is cumbersome.
Summary of the invention
In order to overcome the drawbacks described above of the prior art, the embodiment of the present invention provides a kind of container-type shaft of water pump for mining
Envelope, by carrying out primary seal to this component using the first sealing ring and the second sealing ring, and the first O-ring of utilization and the
Two O-rings carry out secondary seal to this component, meanwhile, using in the cavity formed between the plate and seal chamber of axle envelope end cap
Portion fills lubricating oil to form three-level sealing so that this component has Multi-level sealing structure and fully ensure that in suction pump
Sealing performance when gas and normal operation is greatly improved the service life of water pump for mining, while also can avoid replacement and passing
The hard work for axle envelope of uniting, to solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme: a kind of container-type shaft seal of water pump for mining, including
Axis, described axis one end external activity are arranged with sealing block, and the axis other end external activity is arranged with axle envelope end cap, the sealing
The side of block and axle envelope end cap, which is run through, is equipped with perforation, and the axis matches with perforation, the sealing block and axle envelope end cap it
Between be provided with multi-stage sealed mechanism；
The multi-stage sealed mechanism includes seal chamber, and side of the sealing block towards axle envelope end cap is arranged in the seal chamber
Center, the axle envelope end cap include cover board and plate, the chamber formed between the plate and seal chamber of the axle envelope end cap
Internal portion is filled with lubricating oil, and the plate is fluted towards being arranged on one end end face of sealing block, and the inside grooves are mating
Equipped with positioning interstage sleeve, the positioning interstage sleeve is sheathed on outside axis, and the positioning interstage sleeve peripheral side inner wall is provided with first annular slot,
The first annular slot internal engagement is equipped with the first O-ring, one end inside edge position of the sealing block towards axle envelope end cap
It offers the second annular groove, is provided with the second O-ring on the outside of the cover board of the axle envelope end cap and plate junction, described second
O-ring matches with the second annular groove, and fixation is set the perforation inner sidewall of the sealing block and axle envelope end cap central position respectively
There are the first sealing ring and the second sealing ring, the sealing block surface is provided with oil filler point, and the oil filler point is connected with seal chamber
It is logical, match outside the oil filler point and is arranged with seal rubber plug.
In a preferred embodiment, side of the cover board towards sealing block is arranged in the plate, and the two is arranged
It is an integral structure, the plate is fully inserted into seal chamber, and the end face of side and sealing block of the cover board towards sealing block
Fitting.
In a preferred embodiment, the plate peripheral side inner wall is additionally provided with cavity, and the cavity inside is set
Be equipped with baffle ring and lubrication block, and the two quantity be provided with it is multiple.
In a preferred embodiment, multiple baffle rings are arranged alternately with lubrication block, and baffle ring is arranged adjacent
Between two lubrication blocks, inner sidewall of the lubrication block with corresponding position cavity positioned at the cavity inside both ends fits.
In a preferred embodiment, the sealing block is provided with locking hole towards a middle side part of axle envelope end cap,
The cover board of the axle envelope end cap is corresponded to through through-hole is equipped at the position of locking hole, and the locking hole is equal with the diameter of through-hole,
The axle envelope end cap is provided with clamping screw far from the side of sealing block, described clamping screw one end be sequentially inserted into through-hole and
Inside locking hole.
In a preferred embodiment, external screw thread, the through-hole and locking are provided with outside the clamping screw
It is provided with internal screw thread inside hole, and is threadedly coupled between clamping screw and axle envelope end cap and sealing block.
In a preferred embodiment, the sealing block and axle envelope end cap pass through the first sealing ring and respectively
The axis outer wall of two sealing rings and corresponding position is in interference fit state.
In a preferred embodiment, the sealing block, axle envelope end cap and positioning interstage sleeve are polyureas material structure
Part, and joined in polyurea material the graphite of the polytetrafluoroethylene (PTFE) and 5% that account for raw material total amount 5%.
In a preferred embodiment, the lubrication block is graphite material component.
In a preferred embodiment, first sealing ring, the second sealing ring, the first O-ring and second are O-shaped
Circle is silica gel material component.
Technical effect and advantage of the invention:
1, the present invention is by carrying out primary seal to this component using the first sealing ring and the second sealing ring, and utilizes the
One O-ring and the second O-ring carry out secondary seal to this component, meanwhile, using in axle envelope end cap plate and seal chamber it
Between formed inside cavity filling lubricating oil come formed three-level sealing so that this component have Multi-level sealing structure, sufficiently
It ensure that gas in suction pump and sealing performance when running well, be greatly improved the service life of water pump for mining, simultaneously
It also can avoid replacing the hard work of traditional axle envelope；
2, the present invention is by being disposed as polyureas material members for sealing block, axle envelope end cap and positioning interstage sleeve, and is gathering
It joined the graphite of the polytetrafluoroethylene (PTFE) and 5% that account for raw material total amount 5% in urea raw material, so that polyureas has the performance of self-lubricating,
Geometry grade increases the wear-resisting and corrosion resistance of axle envelope, improves the unit block service life in axle envelope.
Detailed description of the invention
Fig. 1 is entirety sectional view of the invention.
Fig. 2 is axle envelope end cap overall structure diagram of the invention.
Fig. 3 is sealing block side view of the invention.
Fig. 4 is sealing block overall schematic of the invention.
Fig. 5 is part A enlarged drawing in Fig. 1 of the invention.
Fig. 6 is part B enlarged drawing in Fig. 1 of the invention.
Fig. 7 is clamping screw overall schematic of the invention.
Appended drawing reference are as follows: 1 axis, 2 sealing blocks, 3 axle envelope end caps, 4 seal chambers, 5 positioning interstage sleeves, 6 first annular slots, 7 the oneth O
Type circle, 8 cavitys, 9 baffle rings, 10 lubrication blocks, 11 grooves, 12 second annular grooves, 13 second O-rings, 14 locking holes, 15 through-holes, 16
Clamping screw, 17 first sealing rings, 18 second sealing rings.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The container-type shaft seal of the water pump for mining of one embodiment of the invention, it may include axis 1,1 one end external activity set of axis
Equipped with sealing block 2,1 other end external activity of axis is arranged with axle envelope end cap 3, and the one of the sealing block 2 and axle envelope end cap 3
Side, which is run through, is equipped with perforation, and the axis 1 matches with perforation, is provided between the sealing block 2 and axle envelope end cap 3 multi-stage sealed
Mechanism.
Referring to Figure of description 1-6, the multi-stage sealed mechanism of the container-type shaft seal of the water pump for mining of the embodiment includes
Side center of the sealing block 2 towards axle envelope end cap 3 is arranged in seal chamber 4, the seal chamber 4, and the axle envelope end cap 3 includes
There are cover board and plate, the inside cavity formed between the plate and seal chamber 4 of the axle envelope end cap 3 is filled with lubricating oil, described
Plate matches inside the groove 11 towards fluted 11 are arranged on one end end face of sealing block 2 and is arranged with positioning interstage sleeve 5, described
Positioning interstage sleeve 5 is sheathed on outside axis 1, and the 5 peripheral side inner wall of positioning interstage sleeve is provided with first annular slot 6, described first annular
6 internal engagement of slot is equipped with the first O-ring 7, and the sealing block 2 offers the towards one end inside edge position of axle envelope end cap 3
It is provided with the second O-ring 13 on the outside of second ring slot 12, the cover board of the axle envelope end cap 3 and plate junction, described second is O-shaped
Circle 13 matches with the second annular groove 12, and the perforation inner sidewall of 3 center of the sealing block 2 and axle envelope end cap is solid respectively
Surely the first sealing ring 17 and the second sealing ring 18 are equipped with, 2 surface of sealing block is provided with oil filler point, the oil filler point with it is close
Envelope chamber 4 is connected, and matches outside the oil filler point and is arranged with seal rubber plug.
Further, side of the cover board towards sealing block 2 is arranged in the plate, and the two setting is an integral structure,
The plate is fully inserted into seal chamber 4, and side of the cover board towards sealing block 2 is bonded with the end face of sealing block 2.
Further, the sealing block 2 and axle envelope end cap 3 pass through the first sealing ring 17 and the second sealing ring 18 respectively
1 outer wall of axis with corresponding position is in interference fit state.
Further, first sealing ring 17, the second sealing ring 18, the first O-ring 7 and the second O-ring 13 are
Silica gel material component.
Implement scene specifically: in actual use, first by the second O-ring 13 be set in cover board on axle envelope end cap 3 with
On the outside of plate junction, then positioning interstage sleeve 5 is arranged in the groove 11 of plate end, and in positioning 5 peripheral side of interstage sleeve
The plate on axle envelope end cap 3, is then inserted on sealing block 2 by the first O-ring 7 of mating setting in the first annular slot 6 of wall
In seal chamber 4, and the second annular groove 12 and that sealing block 2 is opened up towards one end inside edge position of axle envelope end cap 3
Two O-rings 13 fit closely, and after to be sealed piece 2 assembles with axle envelope end cap 3, the assembly set assembled can be mounted in axis 1
On, and moistened by the oil filler point on sealing block 2 to the inside cavity filling formed between the plate and seal chamber 4 of axle envelope end cap 3
Lubricating oil, so that be pressed in the groove 11 of plate end using lubricating oil by interstage sleeve 5 is positioned, it so can be by close using first
18 pairs of this components of seal 17 and the second sealing ring carry out primary seal, and right using the first O-ring 7 and the second O-ring 13
This component carries out secondary seal, meanwhile, it is filled using the inside cavity formed between the plate of axle envelope end cap 3 and seal chamber 4
Lubricating oil forms three-level sealing so that this component has Multi-level sealing structure, fully ensured that in suction pump gas with
And sealing performance when running well, it is greatly improved the service life of water pump for mining, while also can avoid replacing traditional axle envelope
Hard work.
Referring to Figure of description 1, the plate peripheral side inner wall of the container-type shaft seal of the water pump for mining of the embodiment is also set up
Have a cavity 8, the cavity 8 is internally provided with baffle ring 9 and lubrication block 10, and the two quantity be provided with it is multiple.
Further, multiple baffle rings 9 are arranged alternately with lubrication block 10, and baffle ring 9 is arranged in two neighboring lubrication block
Between 10, inner sidewall of the lubrication block 10 with corresponding position cavity 8 positioned at the 8 inside both ends of cavity fits.
Further, the lubrication block 10 is graphite material component.
Implement scene specifically: before assembly positions interstage sleeve 5, can successively be handed in the cavity 8 of plate peripheral side inner wall
For the lubrication block 10 and baffle ring 9 for assembling multiple graphite materials, and be located at the lubrication block 10 at 8 inside both ends of cavity with corresponding position
The inner sidewall for emptying chamber 8 fits, and can substantially reduce the assembly set for the sealing block 2 and axle envelope end cap 3 that will be assembled on axis 1
During suffered resistance, while also can be further improved the leakproofness of our department's part.
Referring to Figure of description 1 and Fig. 7, the sealing block 2 of the container-type shaft seal of the water pump for mining of the embodiment is towards axle envelope
One middle side part of end cap 3 is provided with locking hole 14, and the cover board of the axle envelope end cap 3 is corresponded to run through at the position of locking hole 14 and is equipped with
Through-hole 15, the locking hole 14 is equal with the diameter of through-hole 15, and the axle envelope end cap 3 is provided with lock far from the side of sealing block 2
Tight bolt 16, described 16 one end of clamping screw is sequentially inserted into through-hole 15 and locking hole 14.
Further, external screw thread is provided with outside the clamping screw 16, the through-hole 15 and 14 inside of locking hole are
It is provided with internal screw thread, and is threadedly coupled between clamping screw 16 and axle envelope end cap 3 and sealing block 2.
Implement scene specifically:, will be on axle envelope end cap 3 during being assembled to sealing block 2 and axle envelope end cap 3
After plate is inserted into the seal chamber 4 on sealing block 2 Nei, the through-hole 15 on 3 cover board of axle envelope end cap and the lock on 2 end face of sealing block are enabled
Tieholen 14 corresponds, and the axle envelope end cap 3 after assembly is fixed with sealing block 2 by lock-screw 16, avoids making
It in the process, is separated between axle envelope end cap 3 and sealing block 2, to influence the normal use of this component.
Sealing block 2, axle envelope end cap 3 and the positioning interstage sleeve 5 of the container-type shaft seal of the water pump for mining of the embodiment are poly-
Urea material members, and joined in polyurea material the graphite of the polytetrafluoroethylene (PTFE) and 5% that account for raw material total amount 5%.
Implement scene specifically: in actual use, by the way that sealing block 2, axle envelope end cap 3 and positioning interstage sleeve 5 to be all provided with
Polyureas material members are set to, and joined in polyurea material the graphite of the polytetrafluoroethylene (PTFE) and 5% that account for raw material total amount 5%, are made
The performance that polyureas has self-lubricating is obtained, geometry grade increases the wear-resisting and corrosion resistance of axle envelope, improves the list in axle envelope
First component service life.
In summary: the present invention crosses close using the first sealing ring 17 and 18 pairs of this component progress level-ones of the second sealing ring
Envelope, and secondary seal is carried out using 13 pairs of this components of the first O-ring 7 and the second O-ring, meanwhile, using in axle envelope end cap 3
The inside cavity filling lubricating oil formed between plate and seal chamber 4 seals to form three-level, so that this component is with more
Grade sealing structure has fully ensured that gas in suction pump and sealing performance when running well, has been greatly improved water pump for mining
Service life, while also can avoid replacing the hard work of traditional axle envelope, in addition, the present invention is also by by sealing block 2, axle envelope
End cap 3 and positioning interstage sleeve 5 are disposed as polyureas material members, and joined in polyurea material and account for raw material total amount 5%
Polytetrafluoroethylene (PTFE) and 5% graphite so that polyureas has the performance of self-lubricating, geometry grade increases the wear-resisting and corrosion resistant of axle envelope
Corrosion energy improves the unit block service life in axle envelope.
The several points that should finally illustrate are: firstly, in the description of the present application, it should be noted that unless otherwise prescribed and
It limits, term " installation ", " connected ", " connection " shall be understood in a broad sense, can be mechanical connection or electrical connection, be also possible to two
Connection inside element, can be directly connected, and "upper", "lower", "left", "right" etc. are only used for indicating relative positional relationship, when
The absolute position for being described object changes, then relative positional relationship may change；
Secondly: the present invention discloses in embodiment attached drawing, relates only to the structure being related to the embodiment of the present disclosure, other knots
Structure, which can refer to, to be commonly designed, and under not conflict situations, the same embodiment of the present invention and different embodiments be can be combined with each other；
Last: the foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, all in the present invention
Spirit and principle within, any modification, equivalent replacement, improvement and so on, should be included in protection scope of the present invention it
It is interior.
Claims (10)
1. a kind of container-type shaft seal of water pump for mining, including axis (1), it is characterised in that: described axis (1) one end external activity is arranged
Have sealing block (2), axis (1) other end external activity is arranged with axle envelope end cap (3), the sealing block (2) and axle envelope end
The side of lid (3), which is run through, is equipped with perforation, and the axis (1) matches with perforation, the sealing block (2) and axle envelope end cap (3) it
Between be provided with multi-stage sealed mechanism；
The multi-stage sealed mechanism includes seal chamber (4), and the seal chamber (4) is arranged in sealing block (2) towards axle envelope end cap
(3) side center, the axle envelope end cap (3) include cover board and plate, the plate of the axle envelope end cap (3) and sealing
The inside cavity formed between chamber (4) is filled with lubricating oil, and the plate is provided with recessed on one end end face towards sealing block (2)
Slot (11), the groove (11) is internal with positioning interstage sleeve (5) is arranged with, and the positioning interstage sleeve (5) is sheathed on axis (1) outside, institute
It states positioning interstage sleeve (5) peripheral side inner wall to be provided with first annular slot (6), first annular slot (6) internal engagement is equipped with the first O
Type circle (7), the sealing block (2) offer the second annular groove (12), institute towards one end inside edge position of axle envelope end cap (3)
State axle envelope end cap (3) cover board and plate junction on the outside of be provided with the second O-ring (13), second O-ring (13) with
Second annular groove (12) matches, and the perforation inner sidewall of the sealing block (2) and axle envelope end cap (3) center is fixed respectively
Equipped with the first sealing ring (17) and the second sealing ring (18), sealing block (2) surface is provided with oil filler point, the oil filler point
It is connected with seal chamber (4), matches outside the oil filler point and be arranged with seal rubber plug.
2. a kind of container-type shaft seal of water pump for mining according to claim 1, it is characterised in that: the plate setting is being covered
Plate face is to the side of sealing block (2), and the two setting is an integral structure, and the plate is fully inserted into in seal chamber (4), and
Side of the cover board towards sealing block (2) is bonded with the end face of sealing block (2).
3. a kind of container-type shaft seal of water pump for mining according to claim 1, it is characterised in that: in the plate peripheral side
Wall is additionally provided with cavity (8), and the cavity (8) is internally provided with baffle ring (9) and lubrication block (10), and the two quantity is provided with
It is multiple.
4. a kind of container-type shaft seal of water pump for mining according to claim 3, it is characterised in that: multiple baffle rings (9)
It is arranged alternately, and baffle ring (9) is arranged between two neighboring lubrication block (10), is located in the cavity (8) with lubrication block (10)
Inner sidewall of the lubrication block (10) at portion both ends with corresponding position cavity (8) fits.
5. a kind of container-type shaft seal of water pump for mining according to claim 1, it is characterised in that: sealing block (2) face
It is provided with locking hole (14) to a middle side part of axle envelope end cap (3), the cover board of the axle envelope end cap (3) corresponds to locking hole (14)
Through through-hole (15) are equipped at position, the locking hole (14) is equal with the diameter of through-hole (15), and the axle envelope end cap (3) is separate
The side of sealing block (2) is provided with clamping screw (16), described clamping screw (16) one end be sequentially inserted into through-hole (15) and
Locking hole (14) is internal.
6. a kind of container-type shaft seal of water pump for mining according to claim 5, it is characterised in that: the clamping screw (16)
Outside is provided with external screw thread, is provided with internal screw thread, and clamping screw (16) inside the through-hole (15) and locking hole (14)
It is threadedly coupled between axle envelope end cap (3) and sealing block (2).
7. a kind of container-type shaft seal of water pump for mining according to claim 1, it is characterised in that: the sealing block (2) with
And axle envelope end cap (3) is in by the first sealing ring (17) and the second sealing ring (18) and axis (1) outer wall of corresponding position respectively
Interference fit state.
8. a kind of container-type shaft seal of water pump for mining according to claim 1, it is characterised in that: the sealing block (2), axis
Sealing end lid (3) and positioning interstage sleeve (5) are polyureas material members, and joined in polyurea material and account for raw material total amount 5%
Polytetrafluoroethylene (PTFE) and 5% graphite.
9. a kind of container-type shaft seal of water pump for mining according to claim 3, it is characterised in that: the lubrication block (10) is
Graphite material component.
10. a kind of container-type shaft seal of water pump for mining according to claim 1, it is characterised in that: first sealing ring
(17), the second sealing ring (18), the first O-ring (7) and the second O-ring (13) are silica gel material component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910474231.9A CN110219826B (en) | 2019-05-23 | 2019-05-23 | Integrated shaft seal for mine water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910474231.9A CN110219826B (en) | 2019-05-23 | 2019-05-23 | Integrated shaft seal for mine water pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110219826A true CN110219826A (en) | 2019-09-10 |
| CN110219826B CN110219826B (en) | 2024-03-19 |
Family
ID=67819343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910474231.9A Active CN110219826B (en) | 2019-05-23 | 2019-05-23 | Integrated shaft seal for mine water pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550419A (en) * | 2020-05-15 | 2020-08-18 | 杭州余杭特种风机有限公司 | High-sealing coal gas pressurizing centrifugal blower |
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| CN2259526Y (en) * | 1996-07-05 | 1997-08-13 | 中国成达化学工程公司 | Gather packing mechanical sealing and shaft seal container |
| JP2006057734A (en) * | 2004-08-20 | 2006-03-02 | Mitsubishi Heavy Ind Ltd | Shaft seal device |
| CN102192328A (en) * | 2010-03-12 | 2011-09-21 | 祥景精机股份有限公司 | Container-type shaft seal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111550419A (en) * | 2020-05-15 | 2020-08-18 | 杭州余杭特种风机有限公司 | High-sealing coal gas pressurizing centrifugal blower |
| CN111550419B (en) * | 2020-05-15 | 2022-03-15 | 杭州余杭特种风机有限公司 | High-sealing coal gas pressurizing centrifugal blower |
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|---|---|
| CN110219826B (en) | 2024-03-19 |
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