CN112780774A - Support and press regulation formula stern shaft sealing device - Google Patents
Support and press regulation formula stern shaft sealing device Download PDFInfo
- Publication number
- CN112780774A CN112780774A CN202110222254.8A CN202110222254A CN112780774A CN 112780774 A CN112780774 A CN 112780774A CN 202110222254 A CN202110222254 A CN 202110222254A CN 112780774 A CN112780774 A CN 112780774A
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- Prior art keywords
- extrusion
- radial floating
- ring body
- floating rod
- periphery
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3436—Pressing means
- F16J15/3452—Pressing means the pressing force resulting from the action of a spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3464—Mounting of the seal
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a pressing adjustment type stern shaft sealing device which comprises a stern shaft body, a front end cover, a rear pressing cover, a sealing assembly and an adjusting mechanism, wherein the front end cover is arranged on the stern shaft body; the adjusting mechanism is additionally arranged, the radial floating rod is driven to move in the driving groove in the radial direction by rotating the driving threaded barrel, when the radial floating rod moves in the radial direction towards the inner part of the rear gland, the positioning sleeve is driven to move in the axial direction and extrude the abutting elastic body, and when the abutting elastic body is extruded, the extrusion sleeve can bear the extrusion force of the abutting elastic body through the force transmission effect, so that the extrusion elastic force acting on the sliding plate is enhanced, the extrusion force of the extrusion ring body acting on the sealing ring body is improved, the sealing abutting degree of the sealing ring body and the stern shaft body is further enhanced, and the sealing abutting force can be adjusted according to the actual situation.
Description
Technical Field
The invention relates to a pressing adjusting type stern shaft sealing device.
Background
At present, in the ship industry, in order to prevent seawater and lake water from permeating into a ship body along a stern shaft tube, the stern shaft must be strictly sealed to ensure the safety of the ship, the existing sealing device for the stern shaft is generally sealed through a plurality of sealing rings at joints, but the existing sealing rings are extruded and positioned through a gland, so that a tight sealing structure is formed between the sealing rings and the stern shaft, the sealing performance of the structure is unreliable, and in addition, once the gland is slightly loosened, the sealing performance of the stern shaft is affected, so that the sealing performance is unreliable.
Disclosure of Invention
Aiming at the defects of the prior art, the invention solves the problems that: the abutting adjustment type stern shaft sealing device is adjustable in sealing abutting degree and reliable in sealing performance.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a kind of support and press the adjusting type stern shaft seal device, including the stern shaft body, front end cap, back gland, seal assembly, regulating mechanism; the front end cover and the rear gland are both in annular structures; one end of the rear gland is sleeved and mounted on the outer side of the periphery of one end of the front end cover; the screw shaft body is rotatably connected to the inner parts of the front end cover and the rear gland in a penetrating manner; the sealing assembly is arranged on the periphery of the inner part of the rear gland; the sealing assembly comprises a sealing ring body, a radial floating rod, a positioning sleeve, an extrusion sleeve, a pressing elastic body, a sliding plate and an extrusion ring body; a driving groove is respectively arranged at the upper part and the lower part in the middle of the inner part of the rear gland; the middle of the driving groove is respectively provided with a radial floating rod in a radial sliding and penetrating way; the outer end of the radial floating rod extends to the outside of the rear gland, and the inner end of the radial floating rod extends to the inside of the rear gland; two sides of the inner end of the radial floating rod are respectively provided with a positioning sleeve in a sliding and abutting mode; two sealing ring bodies are respectively arranged on two sides of the interior of the rear gland; the peripheral outer side of the stern shaft body is in sealed butt joint with the peripheral inner side of the sealing ring body; the inner ends of the sealing ring bodies are respectively abutted and provided with an extrusion ring body; a sliding plate is respectively arranged at the upper part and the lower part of the inner end of the extrusion ring body; the outer end of the sliding plate is slidably clamped at the end part of the driving groove; the inner sides of the sliding plates are respectively provided with an extrusion sleeve; a pressing elastic body is sleeved and mounted between the positioning sleeve and the extrusion sleeve respectively; the pressing elastic body axially pushes the sliding plate, the sliding plate drives the extrusion ring body to extrude the periphery of the inner end of the sealing ring body, and the sealing ring body is radially and tightly pressed on the outer side of the periphery of the stern shaft body after being extruded by the extrusion ring body; the radial floating rod drives the positioning sleeve to axially extrude and press the elastic body outwards when moving radially towards the inner part of the rear gland; the outer ends of the radial floating rods are respectively provided with an adjusting mechanism; the adjusting mechanism comprises a driving threaded cylinder, a rotary clamping and connecting rod, a guide limiting rod, a sealing ring and a stabilizing spring; the periphery of the outer end of the radial floating rod is provided with an external thread ring surface; the external thread ring surface of the radial floating rod is in threaded rotation connection with a driving thread cylinder; the periphery of the middle outer part of the rear gland is provided with an annular clamping groove; the outer parts of two sides of the driving threaded cylinder are respectively provided with a rotary clamping and connecting rod; the rotary clamping rod is rotatably clamped on the annular clamping groove; a sealing ring is arranged between the outer side of the periphery of the radial floating rod and the rear gland; two sides of the radial floating rod are respectively provided with a limiting sliding chute; two sides of the inner middle part of the rear gland are respectively provided with a guide limiting rod; the radial floating rod is connected to the guide limiting rod in a sliding and clamping manner through limiting sliding grooves on two sides; the outer end of the radial floating rod is provided with an abutting groove; a stable spring is arranged in the abutting groove; and two ends of the stable spring are respectively abutted in the abutting groove and the driving threaded cylinder.
Furthermore, wedge-shaped driving blocks are respectively arranged on two sides of the inner end of the radial floating rod; the inner end of the positioning sleeve is provided with a wedge-shaped driven surface; two sides of the inner end of the radial floating rod are respectively abutted to a wedge-shaped driven surface of the inner end of the positioning sleeve through wedge-shaped driving blocks; and the wedge-shaped driving block drives the positioning sleeve to axially extrude outwards to press the elastic body when moving radially towards the inner part of the rear gland.
Furthermore, the periphery of the inner end of the sealing ring body is provided with an abutting wedge-shaped ring surface; the periphery of the outer end of the extrusion ring body is provided with an extrusion wedge-shaped ring surface; the extrusion ring body is pressed against the abutting wedge-shaped ring surface on the periphery of the inner end of the sealing ring body through the extrusion wedge-shaped ring surface on the periphery of the outer end.
Further, the outer end of the sliding plate is provided with a sliding clamping and connecting rod; the inner sides of two ends of the driving groove are respectively provided with an extension block; the extending blocks are respectively provided with a sliding clamping groove; the sliding plate is slidably clamped on the sliding clamping groove of the extension block through a sliding clamping rod at the outer end.
Furthermore, a front end annular folded edge is arranged on the periphery of one end of the front end cover; a rear end annular folded edge is arranged on the periphery of one end of the rear gland; the rear end annular folded edge and the front end annular folded edge are connected through a plurality of screws.
Furthermore, polytetrafluoroethylene coatings are coated in the sliding clamping grooves at the two ends of the driving groove.
The invention has the advantages of
The adjusting mechanism is additionally arranged, the radial floating rod is driven to move in the driving groove in the radial direction by rotating the driving threaded barrel, when the radial floating rod moves in the radial direction towards the inner part of the rear gland, the positioning sleeve is driven to move in the axial direction and extrude the abutting elastic body, and when the abutting elastic body is extruded, the extrusion sleeve can bear the extrusion force of the abutting elastic body through the force transmission effect, so that the extrusion elastic force acting on the sliding plate is enhanced, the extrusion force of the extrusion ring body acting on the sealing ring body is improved, the sealing abutting degree of the sealing ring body and the stern shaft body is further enhanced, and the sealing abutting force can be adjusted according to the actual situation.
The invention adds a sealing component on the traditional structure, the invention respectively arranges a driving groove at the upper and lower parts in the middle of the back gland, a radial floating rod is respectively installed in the middle of the driving groove in a radial sliding and penetrating way, a pressing elastomer is respectively sleeved and installed between the positioning sleeve of the radial floating rod and the extrusion sleeve of the sliding plate, thus when the pressing elastomer axially pushes the sliding plate, the sliding plate drives the extrusion ring body to extrude the periphery of the inner end of the sealing ring body, the sealing ring body is radially pressed on the outer side of the periphery of the stern shaft body after being extruded by the extrusion ring body, thus the sealing ring body is extruded by the second weight, the sealing structure of the sealing ring body and the stern shaft body is greatly improved, in addition, the extrusion ring body can axially slide in the back gland through the sliding plate, thus the sealing ring body can be elastically extruded by the extrusion ring body when the stern shaft body is adapted to different diameters and radially expanded and contracted, the self-adaptive sealing abutting structure shape is realized, and the structural design is more flexible.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged schematic view of the seal assembly of the present invention.
Fig. 3 is a partially enlarged schematic view of the present invention.
Fig. 4 is an enlarged schematic view of the adjusting mechanism of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, a butt pressure adjusting type stern shaft sealing device includes a stern shaft body 5, a front end cover 1, a rear gland 2, a sealing assembly 3, and an adjusting mechanism 6; the front end cover 1 and the rear gland 2 are both in annular structures; one end of the rear gland 2 is sleeved and mounted on the outer side of the periphery of one end of the front end cover 1; the screw shaft body 5 is rotatably connected to the inner parts of the front end cover 1 and the rear gland 2 in a penetrating manner; the sealing assembly 3 is arranged on the periphery of the inner part of the rear gland 2; the sealing assembly 3 comprises a sealing ring body 32, a radial floating rod 31, a positioning sleeve 33, an extrusion sleeve 35, a pressing elastic body 34, a sliding plate 36 and an extrusion ring body 37; a driving groove 21 is respectively arranged at the upper part and the lower part of the middle part in the rear gland 2; a radial floating rod 31 is respectively installed in the middle of the driving groove 21 in a sliding and penetrating manner in the radial direction; the outer end of the radial floating rod 31 extends to the outside of the rear gland 2, and the inner end of the radial floating rod extends to the inside of the rear gland 2; two sides of the inner end of the radial floating rod 31 are respectively provided with a positioning sleeve 33 in a sliding and abutting mode; two sealing ring bodies 32 are respectively arranged on two sides of the interior of the rear gland 2; the peripheral outer side of the stern shaft body 5 is in sealing and abutting connection with the peripheral inner side of the sealing ring body 32; the inner ends of the sealing ring bodies 32 are respectively connected with and provided with an extrusion ring body 37; the upper end and the lower end of the extrusion ring body 37 are respectively provided with a sliding plate 36; the outer end of the sliding plate 36 is slidably clamped at the end part of the driving groove 21; the inner sides of the sliding plates 36 are respectively provided with an extrusion sleeve 35; a pressing elastic body 34 is sleeved and mounted between the positioning sleeve 33 and the extrusion sleeve 35 respectively; the pressing elastic body 34 axially pushes the sliding plate 36, the sliding plate 36 drives the extrusion ring body 37 to extrude the periphery of the inner end of the sealing ring body 32, and the sealing ring body 32 is radially compressed on the outer side of the periphery of the stern shaft body 5 after being extruded by the extrusion ring body 37; when the radial floating rod 31 moves radially towards the inner part of the rear gland 2, the positioning sleeve 33 is driven to extrude and press the elastic body 34 axially towards the outer side; the outer ends of the radial floating rods 31 are respectively provided with an adjusting mechanism 6; the adjusting mechanism 6 comprises a driving threaded cylinder 61, a rotary clamping rod 62, a guide limiting rod 64, a sealing ring 65 and a stabilizing spring 63; the periphery of the outer end of the radial floating rod 31 is provided with an external thread ring surface 313; the external thread ring surface 313 of the radial floating rod 31 is in threaded rotation connection with a driving thread cylinder 61; the periphery of the middle outer part of the rear gland 2 is provided with an annular clamping groove 24; the outer parts of two sides of the driving threaded cylinder 61 are respectively provided with a rotary clamping rod 62; the rotary clamping rod 62 is rotatably clamped on the annular clamping groove 24; a sealing ring 65 is arranged between the outer side of the periphery of the radial floating rod 31 and the rear gland 2; two sides of the radial floating rod 31 are respectively provided with a limiting sliding chute 312; two sides of the middle inner part of the rear gland 2 are respectively provided with a guide limiting rod 64; the radial floating rod 31 is slidably clamped on the guide limit rod 64 through the limit sliding grooves 312 on the two sides; the outer end of the radial floating rod 31 is provided with an abutting groove 314; a stable spring 63 is arranged in the abutting groove 314; the two ends of the stabilizing spring 63 are respectively abutted against the abutting groove 314 and the driving threaded cylinder 61.
As shown in fig. 1 to 4, further, two sides of the inner end of the radial floating rod 31 are respectively provided with a wedge-shaped driving block 311; the inner end of the positioning sleeve 33 is provided with a wedge-shaped driven surface 331; two sides of the inner end of the radial floating rod 31 are respectively abutted on a wedge-shaped driven surface 331 of the inner end of the positioning sleeve 33 through a wedge-shaped driving block 311; when the wedge-shaped driving block 311 moves radially towards the inside of the rear gland 2, the positioning sleeve 33 is driven to extrude and press the elastic body 34 axially towards the outer side. More preferably, the periphery of the inner end of the sealing ring body 32 is provided with an abutting wedge-shaped ring surface 321; the periphery of the outer end of the extrusion ring body 37 is provided with an extrusion wedge-shaped ring surface; the said squeezing ring 37 is pressed against the abutment wedge ring 321 around the inner end of the sealing ring 32 by the squeezing wedge ring around the outer end. Further preferably, the outer end of the sliding plate 36 is provided with a sliding clamping rod 361; the inner sides of two ends of the driving groove 21 are respectively provided with an extending block 23; the extending blocks 23 are respectively provided with a sliding clamping groove 231; the sliding plate 36 is slidably engaged with the sliding engaging groove 231 of the extension block 23 by a sliding engaging rod 361 at the outer end. Furthermore, a front end annular folded edge 11 is arranged on the periphery of one end of the front end cover 1; a rear annular folded edge 22 is arranged on the periphery of one end of the rear gland 2; the rear end annular flange 22 and the front end annular flange 11 are connected by a plurality of screws 4. Further, polytetrafluoroethylene coatings are coated in the sliding clamping grooves 231 at the two ends of the driving groove 21.
The adjusting mechanism 6 is additionally arranged, the radial floating rod 31 is driven to move radially in the driving groove 21 by rotating the driving threaded barrel 61, when the radial floating rod 31 moves radially towards the inside of the rear gland 2, the positioning sleeve 33 is driven to move axially and extrude the abutting elastomer 34, when the abutting elastomer 34 is extruded, the extrusion sleeve 35 can be extruded by the abutting elastomer 34 through the force transmission effect, the extrusion elastic force acting on the sliding plate 36 is enhanced, the extrusion force acting on the sealing ring body 32 by the extrusion ring body 37 is improved, the sealing abutting degree of the sealing ring body 32 and the stern shaft body 5 is further enhanced, and the sealing abutting force can be adjusted according to the actual situation.
The sealing assembly 3 is additionally arranged on the traditional structure, the driving groove 21 is respectively arranged at the upper part and the lower part in the middle of the back gland 2, the radial floating rod 31 is respectively installed in the middle of the driving groove 21 in a sliding and penetrating manner in the radial direction, the abutting elastic body 34 is respectively installed between the positioning sleeve 33 of the radial floating rod 31 and the extrusion sleeve 35 of the sliding plate 36 in a sleeved manner, so that when the abutting elastic body 34 axially pushes the sliding plate 36, the sliding plate 36 drives the extrusion ring body 37 to extrude the periphery of the inner end of the sealing ring body 32, and the sealing ring body 32 is radially compressed on the outer side of the periphery of the stern shaft body 5 after being extruded by the extrusion ring body 37, so that the sealing ring body 32 is extruded by the second weight, and the sealing structure of the sealing ring body 32 and the stern shaft body 5 is.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. A kind of support and press the seal device of the adjustable stern shaft, characterized by, including the stern shaft body, front end cap, back gland, seal assembly, regulating mechanism; the front end cover and the rear gland are both in annular structures; one end of the rear gland is sleeved and mounted on the outer side of the periphery of one end of the front end cover; the screw shaft body is rotatably connected to the inner parts of the front end cover and the rear gland in a penetrating manner; the sealing assembly is arranged on the periphery of the inner part of the rear gland; the sealing assembly comprises a sealing ring body, a radial floating rod, a positioning sleeve, an extrusion sleeve, a pressing elastic body, a sliding plate and an extrusion ring body; a driving groove is respectively arranged at the upper part and the lower part in the middle of the inner part of the rear gland; the middle of the driving groove is respectively provided with a radial floating rod in a radial sliding and penetrating way; the outer end of the radial floating rod extends to the outside of the rear gland, and the inner end of the radial floating rod extends to the inside of the rear gland; two sides of the inner end of the radial floating rod are respectively provided with a positioning sleeve in a sliding and abutting mode; two sealing ring bodies are respectively arranged on two sides of the interior of the rear gland; the peripheral outer side of the stern shaft body is in sealed butt joint with the peripheral inner side of the sealing ring body; the inner ends of the sealing ring bodies are respectively abutted and provided with an extrusion ring body; a sliding plate is respectively arranged at the upper part and the lower part of the inner end of the extrusion ring body; the outer end of the sliding plate is slidably clamped at the end part of the driving groove; the inner sides of the sliding plates are respectively provided with an extrusion sleeve; a pressing elastic body is sleeved and mounted between the positioning sleeve and the extrusion sleeve respectively; the pressing elastic body axially pushes the sliding plate, the sliding plate drives the extrusion ring body to extrude the periphery of the inner end of the sealing ring body, and the sealing ring body is radially and tightly pressed on the outer side of the periphery of the stern shaft body after being extruded by the extrusion ring body; the radial floating rod drives the positioning sleeve to axially extrude and press the elastic body outwards when moving radially towards the inner part of the rear gland; the outer ends of the radial floating rods are respectively provided with an adjusting mechanism; the adjusting mechanism comprises a driving threaded cylinder, a rotary clamping and connecting rod, a guide limiting rod, a sealing ring and a stabilizing spring; the periphery of the outer end of the radial floating rod is provided with an external thread ring surface; the external thread ring surface of the radial floating rod is in threaded rotation connection with a driving thread cylinder; the periphery of the middle outer part of the rear gland is provided with an annular clamping groove; the outer parts of two sides of the driving threaded cylinder are respectively provided with a rotary clamping and connecting rod; the rotary clamping rod is rotatably clamped on the annular clamping groove; a sealing ring is arranged between the outer side of the periphery of the radial floating rod and the rear gland; two sides of the radial floating rod are respectively provided with a limiting sliding chute; two sides of the inner middle part of the rear gland are respectively provided with a guide limiting rod; the radial floating rod is connected to the guide limiting rod in a sliding and clamping manner through limiting sliding grooves on two sides; the outer end of the radial floating rod is provided with an abutting groove; a stable spring is arranged in the abutting groove; and two ends of the stable spring are respectively abutted in the abutting groove and the driving threaded cylinder.
2. The pressure regulating stern shaft seal device according to claim 1, wherein wedge-shaped driving blocks are respectively arranged on two sides of the inner end of the radial floating rod; the inner end of the positioning sleeve is provided with a wedge-shaped driven surface; two sides of the inner end of the radial floating rod are respectively abutted to a wedge-shaped driven surface of the inner end of the positioning sleeve through wedge-shaped driving blocks; and the wedge-shaped driving block drives the positioning sleeve to axially extrude outwards to press the elastic body when moving radially towards the inner part of the rear gland.
3. The pressure regulated stern shaft seal as defined in claim 1, wherein the sealing ring body has an abutting wedge-shaped annulus around its inner end; the periphery of the outer end of the extrusion ring body is provided with an extrusion wedge-shaped ring surface; the extrusion ring body is pressed against the abutting wedge-shaped ring surface on the periphery of the inner end of the sealing ring body through the extrusion wedge-shaped ring surface on the periphery of the outer end.
4. The pressure regulated stern shaft seal as defined in claim 1 wherein the outer end of the slide plate is provided with a slide clamping bar; the inner sides of two ends of the driving groove are respectively provided with an extension block; the extending blocks are respectively provided with a sliding clamping groove; the sliding plate is slidably clamped on the sliding clamping groove of the extension block through a sliding clamping rod at the outer end.
5. The pressure regulating stern shaft seal as defined in claim 1, wherein the front end cover is provided with a front end annular flange around one end thereof; a rear end annular folded edge is arranged on the periphery of one end of the rear gland; the rear end annular folded edge and the front end annular folded edge are connected through a plurality of screws.
6. The pressure regulated stern shaft seal as defined in claim 4 wherein the sliding slots at the ends of the drive slot have a teflon coating applied therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110222254.8A CN112780774A (en) | 2021-02-28 | 2021-02-28 | Support and press regulation formula stern shaft sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110222254.8A CN112780774A (en) | 2021-02-28 | 2021-02-28 | Support and press regulation formula stern shaft sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112780774A true CN112780774A (en) | 2021-05-11 |
Family
ID=75762006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110222254.8A Withdrawn CN112780774A (en) | 2021-02-28 | 2021-02-28 | Support and press regulation formula stern shaft sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112780774A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113323599A (en) * | 2021-06-30 | 2021-08-31 | 江苏力克石油机械有限公司 | Rotary abutting type sucker rod anti-drop device |
| CN113323602A (en) * | 2021-06-30 | 2021-08-31 | 江苏力克石油机械有限公司 | Support and press firm formula sucker rod centralizer |
| CN113357477A (en) * | 2021-06-28 | 2021-09-07 | 江苏力克石油机械有限公司 | Automatic break away from pressure formula oil pipe leaking stoppage seal structure |
| CN113828694A (en) * | 2021-10-29 | 2021-12-24 | 领先科技(东台)有限公司 | Adjust spacing formula motor roof pressure forming mechanism |
| CN113895923A (en) * | 2021-10-27 | 2022-01-07 | 领先科技(东台)有限公司 | Multi-point butt interlocking type motor turnover mechanism |
| CN113926897A (en) * | 2021-10-27 | 2022-01-14 | 领先科技(东台)有限公司 | Wheel-changing pressing type motor top pressing forming mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1174600A (en) * | 1994-11-16 | 1998-02-25 | 德雷瑟-兰德公司 | Shaft seal |
| CN106351847A (en) * | 2016-11-01 | 2017-01-25 | 天津市合润科技有限责任公司 | Mechanical sealing device with axial adjusting function for large-sized dredger sludge pump |
| CN107387771A (en) * | 2017-08-17 | 2017-11-24 | 东台市岳东橡胶密封件厂 | One kind slides squash type marine screw shaft sealing device |
| CN109027243A (en) * | 2018-08-16 | 2018-12-18 | 东台友铭船舶配件有限公司 | A kind of radial and axial double compression type stern shaft seal glands |
| CN110822094A (en) * | 2019-10-29 | 2020-02-21 | 东台友铭船舶配件有限公司 | Extrusion type stern shaft sealing device |
| CN111720548A (en) * | 2020-06-22 | 2020-09-29 | 东台市海鹏船舶配件厂 | Synchronous abutting type sealing device for ship |
-
2021
- 2021-02-28 CN CN202110222254.8A patent/CN112780774A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1174600A (en) * | 1994-11-16 | 1998-02-25 | 德雷瑟-兰德公司 | Shaft seal |
| CN106351847A (en) * | 2016-11-01 | 2017-01-25 | 天津市合润科技有限责任公司 | Mechanical sealing device with axial adjusting function for large-sized dredger sludge pump |
| CN107387771A (en) * | 2017-08-17 | 2017-11-24 | 东台市岳东橡胶密封件厂 | One kind slides squash type marine screw shaft sealing device |
| CN109027243A (en) * | 2018-08-16 | 2018-12-18 | 东台友铭船舶配件有限公司 | A kind of radial and axial double compression type stern shaft seal glands |
| CN110822094A (en) * | 2019-10-29 | 2020-02-21 | 东台友铭船舶配件有限公司 | Extrusion type stern shaft sealing device |
| CN111720548A (en) * | 2020-06-22 | 2020-09-29 | 东台市海鹏船舶配件厂 | Synchronous abutting type sealing device for ship |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113357477A (en) * | 2021-06-28 | 2021-09-07 | 江苏力克石油机械有限公司 | Automatic break away from pressure formula oil pipe leaking stoppage seal structure |
| CN113323599A (en) * | 2021-06-30 | 2021-08-31 | 江苏力克石油机械有限公司 | Rotary abutting type sucker rod anti-drop device |
| CN113323602A (en) * | 2021-06-30 | 2021-08-31 | 江苏力克石油机械有限公司 | Support and press firm formula sucker rod centralizer |
| CN113895923A (en) * | 2021-10-27 | 2022-01-07 | 领先科技(东台)有限公司 | Multi-point butt interlocking type motor turnover mechanism |
| CN113926897A (en) * | 2021-10-27 | 2022-01-14 | 领先科技(东台)有限公司 | Wheel-changing pressing type motor top pressing forming mechanism |
| CN113895923B (en) * | 2021-10-27 | 2023-10-24 | 领先科技(东台)有限公司 | Multi-point abutting interlocking type motor turnover mechanism |
| CN113828694A (en) * | 2021-10-29 | 2021-12-24 | 领先科技(东台)有限公司 | Adjust spacing formula motor roof pressure forming mechanism |
| CN113828694B (en) * | 2021-10-29 | 2024-04-12 | 领先科技(东台)有限公司 | Adjust spacing type motor roof pressure forming mechanism |
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Application publication date: 20210511 |