CN211314632U - Pump sealing device for water jet propulsion unit - Google Patents
Pump sealing device for water jet propulsion unit Download PDFInfo
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- CN211314632U CN211314632U CN201922027224.2U CN201922027224U CN211314632U CN 211314632 U CN211314632 U CN 211314632U CN 201922027224 U CN201922027224 U CN 201922027224U CN 211314632 U CN211314632 U CN 211314632U
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Abstract
The utility model discloses a pump sealing device for water jet propulsion unit, include: the static ring is arranged on the static ring seat through a plurality of first pins and first pin sleeves, the outer side of the static ring is provided with a static ring sealing ring pressure plate which is abutted with the static ring seat, the dynamic ring is arranged on the dynamic ring seat through a plurality of second pins and second pin sleeves, the outer side of the movable ring is provided with a movable ring sealing ring pressure plate which is abutted with the movable ring seat, the static ring seat is arranged on the spring seat through a plurality of third pins and third pin sleeves, one side of the spring seat is provided with a plurality of spring accommodating grooves, one side of the static ring seat is provided with a plurality of spring guide pins, the spring is sleeved on the spring guide pin and is accommodated in the spring accommodating groove of the spring seat, the outer sides of the spring seat and the static ring seat are coated with corrugated pipes, the movable ring seat is connected with the shaft through a plurality of transmission pins, so that the service life of the pump sealing device is greatly prolonged.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a mechanical seal field especially relates to a pump sealing device for water jet propulsion unit.
[ background of the invention ]
The water jet propeller is a propeller in which a jet part of a propulsion device is immersed in water and a reaction force generated by jet water flow is used to drive a ship to move forward. The water jet propeller is composed of a water pump, a pipeline, a suction port, a nozzle and the like, can change the jet direction of water flow through the nozzle to realize the operation of a ship, has lower efficiency than a propeller, but has good operation performance, and particularly has good adaptability to a shallow water channel with a sediment bottom.
The water pump is an important part in the water jet propulsion device, and the quality of the sealing performance of the water pump directly determines the quality of the water jet propulsion device.
[ Utility model ] content
In order to solve the technical problem, an object of the utility model is to provide a simple to operate, stable in structure's pump sealing device for water jet propulsion unit.
The utility model discloses the technical scheme who adopts does: a pump seal for a waterjet propulsion device, comprising: the spring comprises a shaft, a spring seat, a plurality of springs, a stationary ring seat, a stationary ring, a movable ring seat and a movable ring, wherein the stationary ring is arranged on the stationary ring seat through a plurality of first pins and first pin sleeves, a stationary ring sealing ring pressing plate which is abutted against the stationary ring seat is arranged on the outer side of the stationary ring, the movable ring is arranged on the movable ring seat through a plurality of second pins and second pin sleeves, a movable ring sealing ring pressing plate which is abutted against the movable ring seat is arranged on the outer side of the movable ring, the stationary ring seat is arranged on the spring seat through a plurality of third pins and third pin sleeves, a plurality of spring accommodating grooves are arranged on one side of the spring seat, a plurality of spring guide pins are arranged on one side of the stationary ring seat, the springs are sleeved on the spring guide pins and accommodated in the spring accommodating grooves of the spring seat, one end of each spring is abutted against the spring seat, the other end of each spring is abutted against the stationary ring seat, and a snap ring is arranged between the stationary ring, the outside cladding of spring holder and quiet ring seat has the bellows, the one end of bellows is connected with the spring holder through clamp plate and the first mounting of a plurality of, be connected through a plurality of second mounting between quiet ring seat and the quiet ring seal ring clamp plate, the second mounting keeps off the outside at the bellows other end, be connected through a plurality of third mounting between rotating ring seat and the rotating ring seal ring clamp plate, be connected through a plurality of transmission pin between rotating ring seat and the axle.
Preferably, the pump sealing device for a water jet propulsion device in the present invention is further configured to: a movable ring seat O-shaped ring is arranged between the movable ring seat and the shaft, movable ring O-shaped rings are arranged between the movable ring and the movable ring seat and between the movable ring and the movable ring sealing ring pressing plate respectively, static ring O-shaped rings are arranged between the static ring and the static ring seat and between the static ring and the static ring sealing ring pressing plate respectively, and a static ring seat O-shaped ring and a supporting ring are arranged between the static ring seat and the spring seat.
Preferably, the pump sealing device for a water jet propulsion device in the present invention is further configured to: the bellows is made of viton.
Preferably, the pump sealing device for a water jet propulsion device in the present invention is further configured to: the movable ring is made of pressureless sintered silicon carbide materials, and the static ring is made of reaction sintered silicon carbide materials.
Preferably, the pump sealing device for a water jet propulsion device in the present invention is further configured to: the hardness of the dynamic ring is HRA95, and the hardness of the static ring is HRA 90.
Preferably, the pump sealing device for a water jet propulsion device in the present invention is further configured to: the spring is made of nickel-chromium-molybdenum alloy containing tungsten.
Preferably, the pump sealing device for a water jet propulsion device in the present invention is further configured to: the first fixing piece, the second fixing piece and the third fixing piece are all screws.
Preferably, the pump sealing device for a water jet propulsion device in the present invention is further configured to: the first pin sleeve, the second pin sleeve and the third pin sleeve are all made of flexible materials.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model provides a quiet ring adopts the quiet first structure of compensation of multi-spring, and the design of multi-spring can satisfy bear even load that compresses tightly on the big shaft diameter is sealed, and the cooperation uide pin makes sealed have great axial compensation ability, and the spring is not along with the rotation of axle moreover, and the following nature is good, ensures the laminating that the ring face is better under the high-speed condition. In addition, when the installation deviation appears, quiet ring can automatically regulated, can not cause sealed inefficacy and life-span influence because of the deviation of straightness that hangs down etc..
2. The movable ring and the static ring are in an integral ring structure form, are not easy to break and are not easy to deform when the end faces are subjected to high pressure.
3. The movable ring and the stationary ring adopt cylindrical pins to transmit torque, and flexible pin sleeves are assembled on the cylindrical pins to play a role in buffering, so that the phenomenon that the sealing ring is cracked due to rigid contact between the pins and the holes when a host computer is just started to generate overlarge torque can be greatly avoided.
4. Can have the particulate matter to operating condition sea aquatic, consider that silt may pile up and arouse the spring to lose the bullet, consequently have the bellows in the outside cladding of spring holder and quiet ring seat to make the spring not contact with the medium, can effectively avoid the foreign particles to pile up the spring inefficacy that arouses.
[ description of the drawings ]
Fig. 1 is a schematic structural view of a pump sealing device for a middle water jet propulsion unit according to the present invention.
In fig. 1: 1. shaft, 2, spring seat, 20, spring seat pin hole, 21, spring receiving groove, 22, support ring, 3, spring, 4, stationary ring seat, 40, first stationary ring seat pin hole, 41, third cylindrical pin, 42, second stationary ring seat pin hole, 43, third pin bushing, 44, spring guide pin, 45, snap ring, 46, bellows, 47, pressure plate, 48, first fixing member, 49, stationary ring seat O-ring, 5, stationary ring, 50, first cylindrical pin, 51, stationary ring pin hole, 52, first pin bushing, 53, stationary ring O-ring, 6, moving ring seat, 60, moving ring seat pin hole, 61, driving pin, 62, moving ring seat O-ring, 7, moving ring, 70, second cylindrical pin, 71, moving ring pin hole, 72, second pin bushing, 73, moving ring O-ring, 8, stationary ring seal ring pressure plate, 80, second fixing member, 9, moving ring seal ring pressure plate, 90, third stationary ring.
[ detailed description ] embodiments
A pump seal for a water jet propulsion unit according to the invention is described in further detail below with reference to a specific embodiment.
Referring to fig. 1, a pump sealing device for a water jet propulsion device includes: the shaft comprises a shaft 1, a spring seat 2, eighteen springs 3, a static ring seat 4, a static ring 5, a movable ring seat 6 and a movable ring 7, wherein the springs 3 are used for ensuring the good combination and pre-compression of the movable ring 7 and the static ring 5 and playing a compensation role after the end surface is abraded or when the end surface fluctuates. In the present embodiment, the spring 3 is made of a nickel-chromium-molybdenum alloy containing tungsten, has extremely low silicon and carbon contents, has excellent corrosion resistance to most corrosive media in an oxidized and reduced state, does not reduce or lose the original elasticity under a long-term working condition, and has excellent fatigue resistance.
The static ring 5 is installed on the static ring seat 4 through eight first cylindrical pins 50, eight first static ring seat pin holes 40 matched with the first cylindrical pins 50 are formed in the static ring seat 4, eight static ring pin holes 51 matched with the first cylindrical pins 50 are formed in the static ring 5, the first cylindrical pins 50 are partially accommodated in the first static ring seat pin holes 40, the first cylindrical pins 50 are partially accommodated in the static ring pin holes 51, first pin sleeves 52 made of flexible materials are sleeved on the first cylindrical pins 50, and static ring sealing ring pressing plates 8 abutted to the static ring seat 4 are arranged on the outer side of the static ring 5. The movable ring 7 is mounted on the movable ring seat 6 through eight second cylindrical pins 70, eight movable ring seat pin holes 60 matched with the second cylindrical pins 70 are formed in the movable ring seat 6, eight movable ring pin holes 71 matched with the second cylindrical pins 70 are formed in the movable ring 7, the second cylindrical pins 70 are partially accommodated in the movable ring seat pin holes 60 and partially accommodated in the movable ring pin holes 71, a second pin sleeve 72 made of a flexible material is sleeved on the second cylindrical pins 70, and a movable ring sealing ring pressing plate 9 abutted to the movable ring seat 6 is arranged on the outer side of the movable ring 7. The static ring seat 4 is installed on the spring seat 2 through six third cylindrical pins 41, six second static ring seat pin holes 42 matched with the third cylindrical pins 41 are formed in the static ring seat 4, six spring seat pin holes 20 matched with the third cylindrical pins 41 are formed in the spring seat 2, the third cylindrical pins 41 are partially accommodated in the second static ring seat pin holes 42 and partially accommodated in the spring seat pin holes 20, third pin sleeves 43 made of flexible materials are sleeved on the third cylindrical pins 41, and in the implementation mode, the first pin sleeves 52, the second pin sleeves 72 and the third pin sleeves 43 are all made of flexible materials, so that the buffering effect can be achieved, and the situation that a main engine is just started to generate overlarge torque and cause hard contact between the pins and the holes to cause fragmentation of the sealing ring can be greatly avoided.
One side of spring holder 2 is equipped with eighteen spring accepting grooves 21, one side of quiet ring seat 4 is equipped with eighteen spring guide pins 44, 3 covers of spring are located on spring guide pins 44 and are acceptd in the spring accepting grooves 21 of spring holder 2, the one end and the 2 looks butt of spring holder of spring 3, the other end and the 4 looks butt of quiet ring seat of spring 3, be equipped with snap ring 45 between quiet ring seat 4 and the spring holder 2, the outside cladding of spring holder 2 and quiet ring seat 4 has bellows 46 to make spring 3 not contact with the medium, can effectively avoid the spring inefficacy that the impurity particle piles up the arouse. In the present embodiment, the bellows 46 is made of fluororubber. One end of the corrugated pipe 46 is connected with the spring seat 2 through a pressing plate 47 and a plurality of first fixing pieces 48, the stationary ring seat 4 is connected with the stationary ring sealing pressing plate 8 through a plurality of second fixing pieces 80, the second fixing pieces 80 are blocked at the outer side of the other end of the corrugated pipe 46, the moving ring seat 6 is connected with the moving ring sealing pressing plate 9 through a plurality of third fixing pieces 90, and in the embodiment, the first fixing pieces 48, the second fixing pieces 80 and the third fixing pieces 90 are screws. The movable ring seat 6 is connected with the shaft 1 through a plurality of transmission pins 61, so that the movable ring 7, the movable ring seat 6 and the shaft 1 rotate together.
Be equipped with rotating ring seat O type circle 62 between rotating ring seat 6 and the axle 1, be equipped with rotating ring O type circle 73 between rotating ring 7 and the rotating ring seat 6, between rotating ring 7 and the rotating ring sealing ring clamp plate 9 respectively, be equipped with quiet ring O type circle 53 between quiet ring 5 and the quiet ring seat 4, be equipped with quiet ring seat O type circle 49 and support ring 22 between quiet ring seat 4 and the spring holder 2 respectively between quiet ring 5 and the quiet ring sealing ring clamp plate 8. In the embodiment, all the O-rings are made of fluororubber, the rotating ring 7 is made of pressureless sintered silicon carbide material, the hardness of the rotating ring 7 is HRA95, the stationary ring 5 is made of reaction sintered silicon carbide material, and the hardness of the stationary ring 5 is HRA90, so that two friction pairs of the stationary ring 5 and the rotating ring 7 have certain hardness difference, and the abrasion performance of the sealing friction pair can be improved.
To sum up, the utility model provides a pump seal device adopts the first structure of the static compensation of multi-spring, and the design of multi-spring can satisfy bear even pressure load on the big shaft diameter is sealed, and the cooperation uide pin makes sealed have great axial compensation ability, and the spring is not along with the rotation of axle moreover, and the following nature is good, ensures the laminating that the ring face is better under the high-speed condition. In addition, when the installation deviation appears, quiet ring can automatically regulated, can not cause sealed inefficacy and life-span influence because of the deviation of straightness that hangs down etc.. In addition the utility model provides a pump sealing device, its rotating ring, quiet ring all adopt whole ring structural style, and are difficult for the breakage, and receive the difficult emergence of high pressure terminal surface and warp.
The above-mentioned embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments may be applied, and are not intended to limit the present invention; it should be noted that, for those skilled in the art, without departing from the inventive concept, several variations and modifications can be made, which are within the scope of the present invention.
Claims (8)
1. A pump seal for a waterjet propulsion unit, comprising: the spring comprises a shaft, a spring seat, a plurality of springs, a stationary ring seat, a stationary ring, a movable ring seat and a movable ring, wherein the stationary ring is arranged on the stationary ring seat through a plurality of first pins and first pin sleeves, a stationary ring sealing ring pressing plate which is abutted against the stationary ring seat is arranged on the outer side of the stationary ring, the movable ring is arranged on the movable ring seat through a plurality of second pins and second pin sleeves, a movable ring sealing ring pressing plate which is abutted against the movable ring seat is arranged on the outer side of the movable ring, the stationary ring seat is arranged on the spring seat through a plurality of third pins and third pin sleeves, a plurality of spring accommodating grooves are arranged on one side of the spring seat, a plurality of spring guide pins are arranged on one side of the stationary ring seat, the springs are sleeved on the spring guide pins and accommodated in the spring accommodating grooves of the spring seat, one end of each spring is abutted against the spring seat, the other end of each spring is abutted against the stationary ring seat, and a snap ring is arranged between the stationary ring, the outside cladding of spring holder and quiet ring seat has the bellows, the one end of bellows is connected with the spring holder through clamp plate and the first mounting of a plurality of, be connected through a plurality of second mounting between quiet ring seat and the quiet ring seal ring clamp plate, the second mounting keeps off the outside at the bellows other end, be connected through a plurality of third mounting between rotating ring seat and the rotating ring seal ring clamp plate, be connected through a plurality of transmission pin between rotating ring seat and the axle.
2. A pump seal for a water jet propulsion unit as claimed in claim 1, wherein: a movable ring seat O-shaped ring is arranged between the movable ring seat and the shaft, movable ring O-shaped rings are arranged between the movable ring and the movable ring seat and between the movable ring and the movable ring sealing ring pressing plate respectively, static ring O-shaped rings are arranged between the static ring and the static ring seat and between the static ring and the static ring sealing ring pressing plate respectively, and a static ring seat O-shaped ring and a supporting ring are arranged between the static ring seat and the spring seat.
3. A pump seal for a water jet propulsion unit as claimed in claim 1, wherein: the bellows is made of viton.
4. A pump seal for a water jet propulsion unit as claimed in claim 1, wherein: the movable ring is made of pressureless sintered silicon carbide materials, and the static ring is made of reaction sintered silicon carbide materials.
5. A pump seal for a water jet propulsion unit as claimed in claim 4, wherein: the hardness of the dynamic ring is HRA95, and the hardness of the static ring is HRA 90.
6. A pump seal for a water jet propulsion unit as claimed in claim 1, wherein: the spring is made of nickel-chromium-molybdenum alloy containing tungsten.
7. A pump seal for a water jet propulsion unit as claimed in claim 1, wherein: the first fixing piece, the second fixing piece and the third fixing piece are all screws.
8. A pump seal for a water jet propulsion unit as claimed in claim 1, wherein: the first pin sleeve, the second pin sleeve and the third pin sleeve are all made of flexible materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922027224.2U CN211314632U (en) | 2019-11-21 | 2019-11-21 | Pump sealing device for water jet propulsion unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922027224.2U CN211314632U (en) | 2019-11-21 | 2019-11-21 | Pump sealing device for water jet propulsion unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211314632U true CN211314632U (en) | 2020-08-21 |
Family
ID=72063567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922027224.2U Active CN211314632U (en) | 2019-11-21 | 2019-11-21 | Pump sealing device for water jet propulsion unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211314632U (en) |
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2019
- 2019-11-21 CN CN201922027224.2U patent/CN211314632U/en active Active
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