CN112392725A - Compressor rotor sealing structure and rotor assembly thereof - Google Patents
Compressor rotor sealing structure and rotor assembly thereof Download PDFInfo
- Publication number
- CN112392725A CN112392725A CN202011294064.9A CN202011294064A CN112392725A CN 112392725 A CN112392725 A CN 112392725A CN 202011294064 A CN202011294064 A CN 202011294064A CN 112392725 A CN112392725 A CN 112392725A
- Authority
- CN
- China
- Prior art keywords
- sealing
- fixedly connected
- seat
- rotor
- clamping seat
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 105
- 229920001971 elastomer Polymers 0.000 claims abstract description 27
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 14
- 229920000728 polyester Polymers 0.000 claims abstract description 12
- 239000011347 resin Substances 0.000 claims abstract description 11
- 229920005989 resin Polymers 0.000 claims abstract description 11
- 238000000926 separation method Methods 0.000 claims abstract description 7
- -1 graphite alkene Chemical class 0.000 claims description 8
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 8
- 229910021389 graphene Inorganic materials 0.000 abstract description 8
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract 1
- 230000009471 action Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/20—Rotors
Abstract
The invention discloses a compressor rotor sealing structure and a rotor assembly thereof, which comprise a machine body, wherein an assembly seat is clamped and positioned at an installation opening of the machine body, a sealing end cover is clamped and positioned at the upper end of the assembly seat, a rubber sealing sleeve plate is tightly sleeved on a shaft sleeve, and the rubber sealing sleeve plate is fixedly connected with a sealing clamping seat. According to the invention, through the shaft sleeve, the rubber sealing sleeve plate and the graphene wear-resistant gear ring, the abrasion on the shaft part of the rotor is greatly avoided, so that the sealing performance of the device is effectively enhanced, through the bearing seat, the sealing top cover, the inner sealing washer and the resin filling block, the sealing performance at the main body of the bearing is effectively enhanced, and the vibration abrasion phenomenon is favorably reduced, so that the sealing performance of the device is further enhanced, the anti-vibration protection effect of the sealing clamping seat is enhanced through the polyester supporting plate, the silicon rubber plate, the separation cavity and the spring, so that the stability and the tightness of the operation of the rotor are enhanced again, the use efficiency of the rotor is improved, and the working efficiency is further effectively improved.
Description
Technical Field
The invention belongs to the technical field of compressor equipment, and particularly relates to a compressor rotor sealing structure and a rotor assembly thereof.
Background
The compressor is a driven fluid machine for raising low-pressure gas into high-pressure gas, and is a heart of refrigerating system, and is characterized by that it can suck low-temperature low-pressure refrigerant gas from air suction pipe, and utilizes the operation of motor to drive piston to compress it, and then can discharge high-temperature high-pressure refrigerant gas into exhaust pipe to provide power for refrigerating cycle. The rotor is an important component of the compressor, and the rotor runs at a high speed, so that the bearing and the assembly seat are vibrated and abraded after long-time use, the phenomenon of poor sealing at the joint of the rotor is easy to occur, and the hidden trouble of leakage loss inside a machine body is easy to cause.
Disclosure of Invention
The present invention is directed to a rotor sealing structure of a compressor and a rotor assembly thereof, which solves the problems of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a sealing structure of compressor rotor comprises a machine body, an assembling seat is clamped and positioned at the mounting opening of the machine body, the upper end of the assembling seat is clamped and positioned with a sealing end cover, the assembling seat and the machine body are fixedly connected through a fastening screw rod, the interior of the assembling seat is fixedly connected with a sealing clamping seat through a silicon rubber plate, the middle part of the sealing clamping seat is penetrated with a rotor shaft part, the upper part of the rotor shaft part is sleeved with a bearing main body, the lower part of the rotor shaft part is sleeved and fixed with a shaft sleeve, an inner sealing washer is tightly sleeved on the corresponding rotor shaft part between the shaft sleeve and the bearing main body, a bearing seat is sleeved on the bearing main body, the top of the bearing seat is fixedly connected with a sealing top cover which is tightly pressed on the upper end surface of the bearing main body, the shaft sleeve is tightly sleeved with a rubber sealing sleeve plate, and the rubber sealing sleeve plate is fixedly connected with the sealing clamping seat.
Preferably, the outer surface of the bearing seat is fixedly connected with the sealing clamping seat through a resin filling block.
This set up the resin and fill the piece sturdy and durable, resistance to compression and shock resistance can be good, effectively improved connection structure's between bearing frame and the sealed cassette steadiness, drive the bearing main part when the rotor function and rotate, be convenient for cushion the vibrations atress through the resin fill piece this moment, be favorable to reducing the rotor axial region then, the vibrations wearing and tearing phenomenon between bearing main part and the sealed cassette, the operating stability is high and do benefit to the sealing performance who guarantees bearing main part department to be favorable to extension fixture's life.
Preferably, the inner wall of the rubber sealing sleeve plate is fixedly connected with graphene wear-resistant toothed rings which are uniformly distributed, the outer wall of the shaft sleeve is provided with a sliding groove, and the sliding groove is connected with the graphene wear-resistant toothed rings in a matched mode.
This setting is convenient for carry out effectual protection to the rotor axial region through the axle sleeve, and simultaneously, when the rotor axial region drove the axle sleeve and rotates, can be inseparable rotate along rubber seal sleeve board to with the wear-resisting ring gear sliding contact of graphite alkene, the wear-resisting ring gear antifriction performance of graphite alkene is high, and is firm durable, be convenient for then the zonulae occludens between axle sleeve and the rubber seal sleeve board, very big avoiding the direct wearing and tearing injury to the rotor axial region, and sealing performance obtains strengthening greatly.
Preferably, the top of the sealing clamping seat is fixedly connected with an outer sealing gasket, and the outer sealing gasket is abutted against and attached to the shaft part of the rotor.
The arrangement facilitates enhancing the sealing performance of the top of the sealing clamping seat, thereby facilitating further improving the sealing performance of the shaft part of the rotor.
Preferably, the inner wall of the sealing end cover is fixedly connected with a propping block, the propping block props against the top of the sealing clamping seat, the propping block and the sealing clamping seat are fixedly connected through a bolt, the bottom of the sealing clamping seat is fixedly connected with a polyester supporting plate, and the polyester supporting plate is fixedly connected with the assembling seat through a bolt.
This setting has effectively improved connection structure's steadiness between sealed cassette and end cover and the assembly seat, makes connection structure closely firm between it, makes easy dismounting nimble between it, simultaneously, through the elastic force of polyester layer board and silicon rubber board, has further strengthened the antidetonation guard action effect of sealed cassette to the stability and the leakproofness of rotor operation have further been guaranteed.
Preferably, the silicon rubber plate is provided with a plurality of uniformly distributed separation cavities inside, the separation cavities are fixedly connected with springs, and a rubber pad is arranged between the bottom of the assembly seat and the machine body.
This setting is favorable to strengthening the elastic force intensity of silicon rubber board through the spring, does benefit to the fastening nature that improves to be connected between sealed cassette and the assembly seat, strengthens antidetonation guard action effect, is convenient for strengthen the leakproofness between assembly seat and the organism through the rubber pad.
Meanwhile, the invention also discloses a rotor assembly which comprises the compressor rotor sealing structure.
The invention has the technical effects and advantages that: the fastening connection between the shaft sleeve and the rubber sealing sleeve plate is ensured through the shaft sleeve, the rubber sealing sleeve plate and the graphene wear-resistant gear ring, the wear-resistant protection effect is good, the direct wear damage to the rotor shaft part is greatly avoided, so that the sealing performance of the device is effectively enhanced, meanwhile, the sealing performance of the bearing main body is effectively enhanced through the bearing seat, the sealing top cover, the inner sealing washer and the resin filling block, the vibration wear phenomenon among the rotor shaft part, the bearing main body and the sealing clamping seat is favorably reduced, the operation stability of the rotor is high, so that the sealing performance of the device is further enhanced, in addition, the protection effect of the sealing clamping seat is enhanced through the polyester supporting plate, the silicon rubber plate, the separation cavity and the spring, even if the vibration shock resistance stress during the operation of the rotor is further buffered, so that the operation stability and the sealing performance of the rotor are enhanced again, the service efficiency of the rotor is improved, and the working efficiency is effectively improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial schematic structural view of the present invention;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 1 according to the present invention;
fig. 4 is an enlarged schematic view of the structure at B in fig. 1 according to the present invention.
In the figure: 1. a body; 2. assembling a seat; 201. a rubber pad; 3. sealing the end cap; 301. a support block; 4. fastening a screw rod; 5. sealing the card seat; 501. a polyester pallet; 6. a rotor shaft portion; 601. a shaft sleeve; 602. a bearing body; 7. a rubber sealing sleeve plate; 701. a graphene wear-resistant toothed ring; 702. a chute; 8. a bearing seat; 801. sealing the top cover; 802. filling resin into blocks; 9. a silicone rubber sheet; 901. a compartment; 902. a spring; 10. an inner sealing washer; 11. an outer sealing gasket.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-4, a compressor rotor sealing structure includes a machine body 1, an assembly seat 2 is clamped and positioned at a mounting opening of the machine body 1, a sealing end cover 3 is clamped and positioned at an upper end of the assembly seat 2, the sealing end cover 3, the assembly seat 2 and the machine body 1 are fixedly connected through a fastening screw rod 4, a sealing clamp seat 5 is fixedly connected inside the assembly seat 2 through a silicon rubber plate 9, a rotor shaft portion 6 penetrates through the middle of the sealing clamp seat 5, a bearing main body 602 is sleeved on an upper portion of the rotor shaft portion 6, a shaft sleeve 601 is sleeved and fixed on a lower portion of the rotor shaft portion 6, an inner sealing washer 10 is tightly sleeved on the corresponding rotor shaft portion 6 between the shaft sleeve 601 and the bearing main body 602, a bearing seat 8 is sleeved on the bearing main body 602, a sealing top cover 801 is fixedly connected on a top of the bearing seat 8, and the sealing top cover 801 is tightly, the shaft sleeve 601 is tightly sleeved with a rubber sealing sleeve plate 7, and the rubber sealing sleeve plate 7 is fixedly connected with the sealing clamping seat 5.
The outer surface of the bearing seat 8 is fixedly connected with the sealing clamping seat 5 through a resin filling block 802; the resin filling block 802 is firm and durable, the compression and seismic resistance performance is good, the stability of the connection structure between the bearing seat 8 and the sealing clamping seat 5 is effectively improved, the bearing main body 602 is driven to rotate when the rotor operates, the vibration stress is buffered conveniently through the resin filling block 802 at the moment, then, the reduction of the vibration abrasion phenomenon between the rotor shaft part 6 and the bearing main body 602 and between the sealing clamping seats 5 is facilitated, the operation stability is high, the sealing performance of the bearing main body 602 is guaranteed, and the service life of the device is prolonged.
The inner wall of the rubber sealing sleeve plate 7 is fixedly connected with graphene wear-resistant toothed rings 701 which are uniformly distributed, the outer wall of the sleeve 601 is provided with a sliding groove 702, and the sliding groove 702 is connected with the graphene wear-resistant toothed rings 701 in a matching manner; be convenient for carry out effectual protection to rotor axial region 6 through axle sleeve 601, simultaneously, when rotor axial region 6 drives axle sleeve 601 and rotates, can be inseparable rotate along rubber seal sleeve board 7, and with the wear-resisting ring gear 701 sliding contact of graphite alkene, the wear-resisting ring gear 701 antifriction performance of graphite alkene is high, and is firm durable, be convenient for then the zonulae occludens between axle sleeve 601 and the rubber seal sleeve board 7, very big avoid the direct wearing and tearing injury to rotor axial region 6, and sealing performance obtains strengthening greatly.
The top of the sealing clamping seat 5 is fixedly connected with an outer sealing gasket 11, and the outer sealing gasket 11 is tightly abutted against the rotor shaft part 6; the sealing performance of the top of the sealing clamping seat 5 is enhanced, so that the sealing performance of the rotor shaft part 6 is further improved.
The inner wall of the sealing end cover 3 is fixedly connected with a propping block 301, the propping block 301 props against the top of the sealing clamping seat 5, the propping block 301 and the sealing clamping seat 5 are fixedly connected through a bolt, the bottom of the sealing clamping seat 5 is fixedly connected with a polyester supporting plate 501, and the polyester supporting plate 501 is fixedly connected with the assembling seat 2 through a bolt; the stability of connection structure between sealed cassette 5 and end cover 3 and assembly seat 2 has effectively been improved, makes connection structure closely firm between it, makes easy dismounting nimble between it, simultaneously, through the elastic force of polyester layer board 501 and silicon rubber plate 9, has further strengthened sealed cassette 5's antidetonation guard action effect to the stability and the leakproofness of rotor operation have further been guaranteed.
The silicon rubber plate 9 is internally provided with uniformly distributed partition cavities 901, the partition cavities 901 are fixedly connected with springs 902, and a rubber pad 201 is arranged between the bottom of the assembling seat 2 and the machine body 1; be favorable to reinforcing silicon rubber plate 9's elastic force intensity through spring 902, do benefit to the fastening nature of being connected between improvement sealed cassette 5 and the assembly seat 2, reinforcing antidetonation guard action effect is convenient for strengthen the leakproofness between assembly seat 2 and the organism 1 through rubber pad 201.
Meanwhile, the invention also discloses a rotor assembly which comprises the compressor rotor sealing structure.
Specifically, when in use, the shaft sleeve 601, the rubber seal sleeve plate 7 and the graphene wear-resistant gear ring 701 ensure the fastening connection between the shaft sleeve 601 and the rubber seal sleeve plate 7, have good wear-resistant protection effect, and greatly avoid direct wear damage to the rotor shaft part 6, thereby effectively enhancing the sealing performance of the device, meanwhile, the sealing performance at the position of the bearing main body 602 is effectively enhanced through the bearing seat 8, the seal top cover 801, the inner seal washer 10 and the resin filling block 802, and the vibration wear phenomenon among the rotor shaft part 6, the bearing main body 602 and the seal clamping seat 5 is favorably reduced, so that the rotor operation stability is high, thereby further enhancing the sealing performance of the device, in addition, the vibration protection effect of the seal clamping seat 5 is enhanced through the polyester supporting plate 501, the silicon rubber plate 9, the separation cavity 901 and the spring 902, even if the vibration stress during the operation of the rotor is further buffered, thereby the stability and the leakproofness of rotor operation have once more strengthened, improve the availability factor of rotor, and then effectively improved work efficiency.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (7)
1. The utility model provides a compressor rotor seal structure, includes organism (1), its characterized in that: the assembling seat (2) is clamped and positioned at the position of a mounting opening of the machine body (1), the upper end of the assembling seat (2) is clamped and positioned with the sealing end cover (3), the assembling seat (2) and the machine body (1) are fixedly connected through the fastening screw (4), the interior of the assembling seat (2) is fixedly connected with the sealing clamping seat (5) through the silicon rubber plate (9), the middle part of the sealing clamping seat (5) is penetrated with the rotor shaft part (6), the upper part of the rotor shaft part (6) is sleeved with the bearing body (602), the lower part of the rotor shaft part (6) is sleeved and fixed with the shaft sleeve (601), the corresponding rotor shaft part (6) between the shaft sleeve (601) and the bearing body (602) is tightly sleeved and connected with the inner sealing washer (10), the bearing body (602) is sleeved with the bearing seat (8), the top of the bearing seat (8) is fixedly connected, the sealing top cover (801) is tightly pressed on the upper end face of the bearing main body (602), the shaft sleeve (601) is tightly sleeved with the rubber sealing sleeve plate (7), and the rubber sealing sleeve plate (7) is fixedly connected with the sealing clamping seat (5).
2. A compressor rotor seal structure according to claim 1, wherein: the outer surface of the bearing seat (8) is fixedly connected with the sealing clamping seat (5) through a resin filling block (802).
3. A compressor rotor seal structure according to claim 1, wherein: the wear-resisting ring gear of graphite alkene (701) of evenly distributed of fixedly connected with on the inner wall of rubber seal lagging (7), spout (702) have been seted up on the outer wall of axle sleeve (601), spout (702) and wear-resisting ring gear of graphite alkene (701) accordant connection.
4. A compressor rotor seal structure according to claim 1, wherein: the top of the sealing clamping seat (5) is fixedly connected with an outer sealing gasket (11), and the outer sealing gasket (11) is tightly abutted against the rotor shaft part (6).
5. A compressor rotor seal structure according to claim 1, wherein: the sealing structure is characterized in that a supporting and fixing block (301) is fixedly connected to the inner wall of the sealing end cover (3), the supporting and fixing block (301) is supported and tightly connected to the top of the sealing clamping seat (5), the supporting and fixing block (301) is fixedly connected with the sealing clamping seat (5) through bolts, a polyester supporting plate (501) is fixedly connected to the bottom of the sealing clamping seat (5), and the polyester supporting plate (501) is fixedly connected with the assembling seat (2) through bolts.
6. A compressor rotor seal structure according to claim 1, wherein: the silicon rubber plate (9) is internally provided with uniformly distributed separation cavities (901), the separation cavities (901) are fixedly connected with springs (902), and a rubber pad (201) is arranged between the bottom of the assembly base (2) and the machine body (1).
7. A rotor assembly, comprising: comprising the compressor rotor seal structure of any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011294064.9A CN112392725A (en) | 2020-11-18 | 2020-11-18 | Compressor rotor sealing structure and rotor assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011294064.9A CN112392725A (en) | 2020-11-18 | 2020-11-18 | Compressor rotor sealing structure and rotor assembly thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112392725A true CN112392725A (en) | 2021-02-23 |
Family
ID=74607353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011294064.9A Pending CN112392725A (en) | 2020-11-18 | 2020-11-18 | Compressor rotor sealing structure and rotor assembly thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112392725A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040013518A1 (en) * | 2002-07-20 | 2004-01-22 | Booth Richard S. | Gas turbine engine casing and rotor blade arrangement |
| KR20050048270A (en) * | 2003-11-19 | 2005-05-24 | 정창현 | Structure and method for installing a bearing into a motor |
| CN2703167Y (en) * | 2004-04-08 | 2005-06-01 | 陕西鼓风机（集团）有限公司 | Carbocycle seal used for blast furnace gas energy recovery turbine apparatus shaft end |
| CN105972084A (en) * | 2016-07-05 | 2016-09-28 | 黄华英 | Shaft sleeve |
| CN207756221U (en) * | 2017-11-17 | 2018-08-24 | 浙江林川机械制造有限公司 | A kind of rotor of hammer mill |
| CN209180014U (en) * | 2018-11-15 | 2019-07-30 | 无锡索贝克精密机械有限公司 | A kind of compressor drum bearing isolating seal structure |
| CN209976871U (en) * | 2019-04-08 | 2020-01-21 | 如东黄海泵业有限公司 | Sealing structure of cast iron submerged pump |
| CN211950602U (en) * | 2020-04-23 | 2020-11-17 | 沈阳北碳密封有限公司 | Radial cog seal for turbine shaft |
-
2020
- 2020-11-18 CN CN202011294064.9A patent/CN112392725A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040013518A1 (en) * | 2002-07-20 | 2004-01-22 | Booth Richard S. | Gas turbine engine casing and rotor blade arrangement |
| KR20050048270A (en) * | 2003-11-19 | 2005-05-24 | 정창현 | Structure and method for installing a bearing into a motor |
| CN2703167Y (en) * | 2004-04-08 | 2005-06-01 | 陕西鼓风机（集团）有限公司 | Carbocycle seal used for blast furnace gas energy recovery turbine apparatus shaft end |
| CN105972084A (en) * | 2016-07-05 | 2016-09-28 | 黄华英 | Shaft sleeve |
| CN207756221U (en) * | 2017-11-17 | 2018-08-24 | 浙江林川机械制造有限公司 | A kind of rotor of hammer mill |
| CN209180014U (en) * | 2018-11-15 | 2019-07-30 | 无锡索贝克精密机械有限公司 | A kind of compressor drum bearing isolating seal structure |
| CN209976871U (en) * | 2019-04-08 | 2020-01-21 | 如东黄海泵业有限公司 | Sealing structure of cast iron submerged pump |
| CN211950602U (en) * | 2020-04-23 | 2020-11-17 | 沈阳北碳密封有限公司 | Radial cog seal for turbine shaft |
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