CN101973381A - Propeller shaft seal installation structure of full-rotation steering oar - Google Patents
Propeller shaft seal installation structure of full-rotation steering oar Download PDFInfo
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- CN101973381A CN101973381A CN 201010522043 CN201010522043A CN101973381A CN 101973381 A CN101973381 A CN 101973381A CN 201010522043 CN201010522043 CN 201010522043 CN 201010522043 A CN201010522043 A CN 201010522043A CN 101973381 A CN101973381 A CN 101973381A
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- bearing
- prop shaft
- rear bearing
- seal
- axle sleeve
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Abstract
The invention relates to a propeller shaft seal installation structure of a full-rotation steering oar. A propeller shaft is installed on a lower gear box through a bearing assembly, and the extending end of the propeller shaft and the lower gear box are assembled in a seal mode. The invention is characterized in that a seal shaft sleeve, a bearing end cover and a sealing gland are sheathed on the extending end of the propeller shaft; the inner end of the seal shaft sleeve abuts against the bearing assembly; the bearing end cover is sheathed on the seal shaft sleeve and fixed on the outer wall of the lower gear box; an oil seal is installed between the bearing gland and the seal shaft sleeve; the sealing gland is sheathed on the seal shaft sleeve and fixed on the bearing end cover; a water-tight seal is installed between the sealing gland and the seal shaft sleeve; and a cavity is arranged between the water-tight seal and the oil seal and communicated with positive pressure oil in a gravity oil tank. The invention has the advantages of ingenious, compact and reasonable structure, and excellent sealability, and can ensure flexible and stable rotation of the propeller shaft.
Description
Technical field
The present invention relates to a kind of appurtenances of marine propulsion, specifically is a kind of prop shaft sealing mounting structure of Full Rotary rudder oar.
Background technology
Rudder and oar are the chief components of marine propuision system, and rudder is used to control the direct of travel of boats and ships, and oar provides propelling thrust for advancing of boats and ships.In the prior art, oar on the boats and ships and rudder are each self-separations, work in combination, there are following several shortcomings in the course of the work in it: the angle that (1), rudder rotate can not put in place in some cases fully, can't obtain maximum thrust and steerage, the road-holding property of boats and ships, manoevreability deficiency.(2) high-power, high-revolving rudder oar power drive shaft ties up to the problems such as torsion oscillations, rotary vibration and system's heating that exist in service, influences the working stability and the service life of transmission shafting.(3) design of high-power, high strength bevel gear, manufacturing require highly, accuracy requires high, the manufacturing cost costliness.
Full Rotary rudder oar is a kind of later-model marine propulsion, it replaces the propulsion mode of traditional rudder oar group system in the mode of rudder oar unification, propelling screws can be around 360 ° of any direction revolutions of vertical axis with rudder oar body, each degreeof turn by the control propelling screws, can obtain omnibearing maximum thrust and steerage, make road-holding property, the manoevreability of boats and ships obtain to improve greatly.Prop shaft is the important component part of Full Rotary rudder oar, and it is used to install screw propeller, and thrust power is provided.For marine propulsion, alerting ability, stability and leak tightness that prop shaft rotates are most important.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, ingenious, compact, the rational prop shaft sealing of a kind of structure mounting structure is provided, the sealing mounting structure can guarantee that prop shaft stably rotates flexibly, has excellent sealability simultaneously.
According to technical scheme provided by the invention, the prop shaft of described Full Rotary rudder oar sealing mounting structure, prop shaft is installed on the lower tooth roller box by bearing assembly, sealing assembling between the external part of prop shaft and the lower tooth roller box; It is characterized in that: the external part of described prop shaft is set with sealing axle sleeve, roller bearing end cap and gland cover; Sealing axle sleeve the inner props up bearing assembly, and roller bearing end cap is enclosed within on the sealing axle sleeve and is fixed on the lower gear box outer wall, between bearing gland and the sealing axle sleeve oil packing is housed; Gland cover is enclosed within on the sealing axle sleeve and is fixed on the roller bearing end cap, between gland cover and the sealing axle sleeve water-stop is housed; Leave certain cavity between described water-stop and the oil packing, the positive pressure oil phase in this cavity and the oil gravity tank is logical.
As a further improvement on the present invention, described bearing assembly comprises first rear bearing, second rear bearing and front bearing; The rear end of prop shaft utilizes first rear bearing and the supporting of second rear bearing to be installed on the rear bearing block of lower tooth roller box, and first rear bearing is contained in the rear bearing block inboard, and the inner ring of first rear bearing is spacing by the shaft shoulder that prop shaft is provided with; Second rear bearing is contained in the rear bearing block outside, and the inner ring of second rear bearing is locked by jam nut; Described front bearing is contained in the bearing mounting hole that lower tooth roller box front portion is provided with, and the inboard of front bearing inner ring is spacing by the end ring that is contained on the prop shaft, and the outside of front bearing inner ring props up by sealing axle sleeve.
As a further improvement on the present invention, seal by end cap the rear end of described prop shaft, and the lower box rear portion is equipped with army cap.
As a further improvement on the present invention, described oil packing has together, and water-stop has twice.
As a further improvement on the present invention, described first rear bearing, second rear bearing adopt single-row cup and cone bearing, and described front bearing adopts the double row tapered roller axis of a cylinder to hold.
The present invention compared with prior art, advantage is: structure is ingenious, compact, rationally, can guarantee that prop shaft stably rotates flexibly, has excellent sealability simultaneously; Leave certain cavity between water-stop and the oil packing, positive pressure oil phase in this cavity and the oil gravity tank is logical, the positive pressure oil that oil gravity tank provides can prevent entering of seawater, when the seal leakage problem occurring, pressure in the oil gravity tank changes and can be detected, thereby can in time find fault and eliminating.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Description of reference numerals: 1-prop shaft, 2-sealing axle sleeve, 3-gland cover, 4-water-stop, 5-oil packing, 6-roller bearing end cap, 7-lower tooth roller box, 8-front bearing, 9-end ring, 10-first rear bearing, 11-rear bearing block, 12-second rear bearing, 13-jam nut, 14-end cap, 15-are with army cap.
The specific embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As shown in Figure 1, prop shaft 1 is installed on the lower tooth roller box 7 by bearing assembly, sealing assembling between the external part of prop shaft 1 and the lower tooth roller box 7; The external part of described prop shaft 1 is set with sealing axle sleeve 2, roller bearing end cap 6 and gland cover 3; Sealing axle sleeve 2 the inners prop up bearing assembly, and roller bearing end cap 6 is enclosed within on the sealing axle sleeve 2 and is fixed on lower tooth roller box 7 outer walls, and bearing gland is equipped with oil packing 5 between sealing axle sleeve 2; Gland cover 3 is enclosed within on the sealing axle sleeve 2 and is fixed on the roller bearing end cap 6, between gland cover 3 and the sealing axle sleeve 2 twice water-stop 4 is housed; Leave certain cavity between described water-stop 4 and the oil packing 5, positive pressure oil phase in this cavity and the oil gravity tank is logical, the positive pressure oil that oil gravity tank provides can prevent entering of seawater, when the seal leakage problem occurring, pressure in the oil gravity tank changes and can be detected, thereby can in time find fault and eliminating, to guarantee reliable operation of the present invention.
As shown in Figure 1, described bearing assembly mainly is made up of first rear bearing 10, second rear bearing 12 and front bearing 8; The rear end of prop shaft 1 utilizes first rear bearing 10 and 12 supportings of second rear bearing to be installed on the rear bearing block 11 of lower tooth roller box 7, and first rear bearing 10 is contained in rear bearing block 11 inboards, and the inner ring of first rear bearing 10 is spacing by the shaft shoulder that prop shaft 1 is provided with; Second rear bearing 12 is contained in rear bearing block 11 outsides, and the inner ring of second rear bearing 12 is by jam nut 13 lockings; Described front bearing 8 is contained in the bearing mounting hole that lower tooth roller box 7 front portions are provided with, and the inboard of front bearing 8 inner rings is spacing by the end ring 9 that is contained on the prop shaft 1, and the outside of front bearing 8 inner rings props up by sealing axle sleeve 2.First rear bearing 10 among the present invention, the single-row cup and cone bearing of second rear bearing, 12 preferred employings, front bearing 8 adopts the double row tapered roller axiss of a cylinder to hold.
As shown in Figure 1, in order to improve the safe reliability of prop shaft 1, seal by end cap 14 rear end of described prop shaft 1; Be equipped with army cap 15 at the lower box rear portion, army cap 15 can be strengthened protective capacities of the present invention, the present invention can be worked under more complicated rugged environment safely and reliably.
Claims (5)
1.
The prop shaft sealing mounting structure of Full Rotary rudder oar, prop shaft (1) is installed on the lower tooth roller box (7) by bearing assembly, sealing assembling between the external part of prop shaft (1) and the lower tooth roller box (7); It is characterized in that: the external part of described prop shaft (1) is set with sealing axle sleeve (2), roller bearing end cap (6) and gland cover (3); Sealing axle sleeve (2) the inner props up bearing assembly, and roller bearing end cap (6) is enclosed within sealing axle sleeve (2) and goes up and be fixed on lower tooth roller box (7) outer wall, and oil packing (5) is housed between bearing gland and the sealing axle sleeve (2); Gland cover (3) is enclosed within sealing axle sleeve (2) and goes up and be fixed on the roller bearing end cap (6), between gland cover (3) and the sealing axle sleeve (2) water-stop (4) is housed; Leave certain cavity between described water-stop (4) and the oil packing (5), the positive pressure oil phase in this cavity and the oil gravity tank is logical.
2. prop shaft sealing mounting structure as claimed in claim 1, it is characterized in that: described bearing assembly comprises first rear bearing (10), second rear bearing (12) and front bearing (8); The rear end of prop shaft (1) utilizes first rear bearing (10) and second rear bearing (12) supporting to be installed on the rear bearing block (11) of lower tooth roller box (7), first rear bearing (10) is contained in rear bearing block (11) inboard, and the inner ring of first rear bearing (10) is spacing by the shaft shoulder that prop shaft (1) is provided with; Second rear bearing (12) is contained in rear bearing block (11) outside, and the inner ring of second rear bearing (12) is by jam nut (13) locking; Described front bearing (8) is contained in the bearing mounting hole that lower tooth roller box (7) lower tooth roller box (7) front portion is provided with, the inboard of front bearing (8) inner ring is spacing by the end ring (9) that is contained on the prop shaft (1), and the outside of front bearing (8) inner ring props up by sealing axle sleeve (2).
3. prop shaft sealing mounting structure as claimed in claim 1, it is characterized in that: seal by end cap (14) rear end of described prop shaft (1), and the lower box rear portion is equipped with army cap (15).
4. prop shaft sealing mounting structure as claimed in claim 1, it is characterized in that: described oil packing (5) has together, and water-stop (4) has twice.
5. prop shaft sealing mounting structure as claimed in claim 2, it is characterized in that: described first rear bearing (10), second rear bearing (12) adopt single-row cup and cone bearing, and described front bearing (8) adopts the double row tapered roller axis of a cylinder to hold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010522043 CN101973381A (en) | 2010-10-28 | 2010-10-28 | Propeller shaft seal installation structure of full-rotation steering oar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010522043 CN101973381A (en) | 2010-10-28 | 2010-10-28 | Propeller shaft seal installation structure of full-rotation steering oar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101973381A true CN101973381A (en) | 2011-02-16 |
Family
ID=43573299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010522043 Pending CN101973381A (en) | 2010-10-28 | 2010-10-28 | Propeller shaft seal installation structure of full-rotation steering oar |
Country Status (1)
| Country | Link |
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| CN (1) | CN101973381A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279333A (en) * | 2013-07-11 | 2015-01-14 | 康建忠 | Multiple waterproof cabin with waterproof rotating shaft |
| CN112339969A (en) * | 2020-09-29 | 2021-02-09 | 沪东中华造船(集团)有限公司 | Installation system in school of boats and ships installation tail pipe sealing device |
| CN113581361A (en) * | 2021-08-18 | 2021-11-02 | 中国船舶科学研究中心 | Pressure-resistant composite structure for long-term operation in deep sea and manufacturing method thereof |
| CN114084330A (en) * | 2021-12-13 | 2022-02-25 | 中国船舶重工集团公司第七0四研究所 | Water-tight box of shaft type oil distributor |
| WO2023082227A1 (en) * | 2021-11-15 | 2023-05-19 | 无锡市东舟船舶设备股份有限公司 | Rudder sealing structure and rudder |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3896757A (en) * | 1970-10-07 | 1975-07-29 | Rendell Tractor & Equipment Co | Rotatable downwardly directed driveline |
| JPS51133997U (en) * | 1975-04-19 | 1976-10-28 | ||
| DE3122407A1 (en) * | 1981-06-05 | 1982-12-23 | Howaldtswerke-Deutsche Werft Ag Hamburg Und Kiel, 2300 Kiel | Lubricating system, in particular for a rear stern tube seal |
| CN2482535Y (en) * | 2001-05-09 | 2002-03-20 | 马卫东 | Stern |
| JP2005162066A (en) * | 2003-12-03 | 2005-06-23 | Kobelco Eagle Marine Engineering Co Ltd | Oiling device for stern tube |
| CN101432554A (en) * | 2006-04-28 | 2009-05-13 | 安德里特斯公开股份有限公司 | Sealing arrangement |
| CN201872941U (en) * | 2010-10-28 | 2011-06-22 | 无锡宝南机器制造有限公司 | Propeller shaft seal installation structure of full circle swinging steering oar |
-
2010
- 2010-10-28 CN CN 201010522043 patent/CN101973381A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3896757A (en) * | 1970-10-07 | 1975-07-29 | Rendell Tractor & Equipment Co | Rotatable downwardly directed driveline |
| JPS51133997U (en) * | 1975-04-19 | 1976-10-28 | ||
| DE3122407A1 (en) * | 1981-06-05 | 1982-12-23 | Howaldtswerke-Deutsche Werft Ag Hamburg Und Kiel, 2300 Kiel | Lubricating system, in particular for a rear stern tube seal |
| CN2482535Y (en) * | 2001-05-09 | 2002-03-20 | 马卫东 | Stern |
| JP2005162066A (en) * | 2003-12-03 | 2005-06-23 | Kobelco Eagle Marine Engineering Co Ltd | Oiling device for stern tube |
| CN101432554A (en) * | 2006-04-28 | 2009-05-13 | 安德里特斯公开股份有限公司 | Sealing arrangement |
| CN201872941U (en) * | 2010-10-28 | 2011-06-22 | 无锡宝南机器制造有限公司 | Propeller shaft seal installation structure of full circle swinging steering oar |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279333A (en) * | 2013-07-11 | 2015-01-14 | 康建忠 | Multiple waterproof cabin with waterproof rotating shaft |
| CN112339969A (en) * | 2020-09-29 | 2021-02-09 | 沪东中华造船(集团)有限公司 | Installation system in school of boats and ships installation tail pipe sealing device |
| CN112339969B (en) * | 2020-09-29 | 2023-12-08 | 沪东中华造船(集团)有限公司 | Centering installation system for ship installation tail pipe sealing device |
| CN113581361A (en) * | 2021-08-18 | 2021-11-02 | 中国船舶科学研究中心 | Pressure-resistant composite structure for long-term operation in deep sea and manufacturing method thereof |
| CN113581361B (en) * | 2021-08-18 | 2022-05-27 | 中国船舶科学研究中心 | Pressure-resistant composite structure for long-term operation in deep sea and manufacturing method thereof |
| WO2023082227A1 (en) * | 2021-11-15 | 2023-05-19 | 无锡市东舟船舶设备股份有限公司 | Rudder sealing structure and rudder |
| CN114084330A (en) * | 2021-12-13 | 2022-02-25 | 中国船舶重工集团公司第七0四研究所 | Water-tight box of shaft type oil distributor |
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Application publication date: 20110216 |