CN104329287A - Underwater hydraulic motor and shaft sealing device - Google Patents
Underwater hydraulic motor and shaft sealing device Download PDFInfo
- Publication number
- CN104329287A CN104329287A CN201410577519.6A CN201410577519A CN104329287A CN 104329287 A CN104329287 A CN 104329287A CN 201410577519 A CN201410577519 A CN 201410577519A CN 104329287 A CN104329287 A CN 104329287A
- Authority
- CN
- China
- Prior art keywords
- hydraulic motor
- housing
- shaft
- sealing ring
- axle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/04—Units comprising pumps and their driving means the pump being fluid driven
Abstract
The invention relates to an underwater hydraulic motor and shaft sealing device. An outlet shaft of a hydraulic motor is connected with a shaft through a shaft coupler, the other end of the shaft is fixedly provided with an impeller, the impeller is fixed with the end part of the shaft, a casing A is fixedly arranged outside the shaft, the two ends in the casing A are fixedly provided with two bearings and are tightly pressed through left and right bearing press covers, an O-shaped sealing ring A is arranged between the casing A and each bearing press cover, a groove is formed in the right bearing press cover, a half of a floating sealing ring is fixedly arranged on the right bearing press cover through an O-shaped sealing ring B, the other half of the floating sealing ring is fixedly arranged on a press plate B through an O-shaped sealing ring C, an O-shaped sealing ring D is fixedly arranged between a press plate B and the shaft, one side of the press plate B is fixed with the shaft by an inserting plate, the press plate B rotates in the groove of the right bearing press cover, the casing A is welded with a casing B, the casing B is fixedly connected with a casing C, an O-shaped sealing ring E is arranged in the middle of the hydraulic motor and the casing C, and the casing C 18 is connected with the hydraulic motor through a flange via screw bolts. The structure is simple, the cost is low, the sealing effect is good, the frictional resistance is small, and the service life is long.
Description
Technical field
The present invention relates to a kind of seal arrangement, particularly relate to one and avoid seawater to enter oil hydraulic motor, and causing trouble, reduce maintenance and the turnover rate of oil hydraulic motor, working efficiency is high, the underwater hydraulic motor that cost is low and shaft seal.
Background technique
As everyone knows, in the past, during oil hydraulic motor underwater operation, its sealing is the sealing configuration by motor self, but runs up for a long time, and cause its wearing and tearing to produce gap, reduce sealing effect, seawater infiltrates, and breaks down, therefore maintenance is frequent, adds cost.
Summary of the invention
Main purpose of the present invention is overcome above deficiency and provide one to avoid seawater to enter oil hydraulic motor, and causing trouble, reduce maintenance and the turnover rate of oil hydraulic motor, working efficiency is high, the underwater hydraulic motor that cost is low and shaft seal.
The technical solution adopted for the present invention to solve the technical problems is: it comprises oil hydraulic motor, axle and impeller, it is characterized in that: the shaft of oil hydraulic motor is connected with axle by coupling, coupling is connected with axle key, the other end of axle is fixed with impeller, impeller is fixed by A pressing plate and bolt and shaft end, the outside of axle is fixed with A housing, two bearings are fixed at two ends in A housing respectively, two bearings are in A housing, and pass through A, B bearing gland compresses, ends A, B bearing gland and A housing centre are all with A zero RunddichtringO, A, B bearing gland and between centers are respectively with G zero RunddichtringO, with groove on B bearing gland, B bearing gland is fixed with the half of floating sealing ring by B zero RunddichtringO, second half of floating sealing ring is fixed on B pressing plate by C zero RunddichtringO, D zero RunddichtringO is fixed with between B pressing plate and axle, the side of B pressing plate is fixed by plate and axle, A housing and B housing welded together, B housing is connected middle with E zero RunddichtringO with C housing by flange with bolt, C housing and oil hydraulic motor centre are with F zero RunddichtringO, C housing 18 is connected by flange bolt with oil hydraulic motor.
The present invention can also by the following technical solutions:
The surface of contact of described two halves floating sealing ring 12 is facet.
The advantage that the present invention has and good effect are: underwater hydraulic motor seal structure is simple, easy for installation, and key position increases seal arrangement, and good sealing effect, surface friction drag is little, long service life.Reduce maintenance and the turnover rate of oil hydraulic motor, improve working efficiency, reduce cost.
Accompanying drawing explanation
Fig. 1 is general shape structural representation of the present invention;
Fig. 2 is the internal structure schematic diagram of Fig. 1.
In Fig. 1, Fig. 2: 1. oil hydraulic motor, 2. coupling, 3. axle, 4. impeller,
5.A pressing plate, 6.A housing, 7. bearing, 8.A bearing gland, 8-1.B bearing gland,
9. A zero RunddichtringO, 10. groove, 11.B zero RunddichtringO, 12. floating sealing rings,
13. C zero RunddichtringOs, 14.B pressing plate, 15.D zero RunddichtringO, 16. plates,
17.B housing, 18.C housing, 19.E zero RunddichtringO, 20.F zero RunddichtringO,
21.G zero RunddichtringO.
Embodiment
Hereby to illustrate following examples for summary of the invention Characteristic of the present invention can be understood further, and coordinate accompanying drawing to be described in detail as follows, refer to Fig. 1, Fig. 2.
As Fig. 1, shown in Fig. 2: the shaft of oil hydraulic motor 1 is connected with axle 3 by coupling 2, coupling 2 is connected with key with axle 3, the other end of axle 3 is fixed with impeller 4, impeller 4 is by A pressing plate 5 and bolt and axle 3 end winding support, the outside of axle 3 is fixed with A housing 6, two bearings 7 are fixed at two ends in A housing 6 respectively, two bearings 7 are supported in A housing 6, and respectively by A, B bearing gland 8 and 8-1 compress, ends A, B bearing gland 8 and 8-1 and A housing 6 centre are all with A zero RunddichtringO 9, A, B bearing gland 8 and between 8-1 and axle 3 respectively with G zero RunddichtringO 21, with groove 10 on B bearing gland 8-1, B bearing gland 8-1 is fixed with the half of floating sealing ring 12 by B zero RunddichtringO 11, second half of floating sealing ring 12 is fixed on B pressing plate 14 by C zero RunddichtringO 13, the surface of contact of described two halves floating sealing ring 12 is facet, D zero RunddichtringO 15 is fixed with between B pressing plate 14 and axle, the side of B pressing plate 14 is fixed with axle 3 by the plate 16 be inserted in axial trough, A housing 6 is welded together with B housing 17, B housing 17 is connected middle with E zero RunddichtringO 19 with C housing 18 by flange with bolt, be connected by flange bolt with oil hydraulic motor 1 with F zero RunddichtringO 20, C housing 18 in the middle of C housing 18 and oil hydraulic motor 1, when axle 3 rotates, right bearing gland 8-1 is because fixing with A housing 6, A housing 6 is fixed with B housing 17 and C housing 18, therefore right bearing gland 8-1 is motionless, B zero RunddichtringO 11 contacted with bearing gland 8-1 and the half of floating sealing ring 12 do not turn under the effect of frictional force, rotate in the groove 10 of B pressing plate 14 on right bearing gland 8-1 under the drive of axle 3, C zero RunddichtringO 13 contacted with B pressing plate 14 and the half of floating sealing ring 12 are rotated with B pressing plate 14 under the effect of frictional force, the two halves phase mutual friction of floating sealing ring 12, axle 3 rotates impeller 4 and rotates.
During operation, connect the underwater hydraulic motor 1 be fixed on trenching machine, the shaft of oil hydraulic motor 1 is rotated together with axle 3 by coupling 2, A housing 6, B housing 17 and C housing 18 are fixed together, A housing 6 internal fixtion has two bearings 7, A, B two bearing glands 8 and 8-1 compress respectively, with groove 10 on B bearing gland 8-1, B bearing gland 8-1 is fixed with the half of floating sealing ring 12 by B zero RunddichtringO 11, second half of floating sealing ring 12 is fixed on B pressing plate 14 by C zero RunddichtringO 13, and the surface of contact of two halves floating sealing ring 12 is facet; Rotate in groove 10 on right bearing gland 8-1 of the drive press table 14 of axle 3, the two halves phase mutual friction of floating sealing ring 12, axle 3 rotates impeller 4 and rotates; Because adding multiple zero RunddichtringO at key position, the possibility that seawater enters underwater hydraulic motor 1 and axle 3 is minimum.
Advantage is: sealing configuration is simple, and easy for installation, good sealing effect, surface friction drag is little, long service life.Reduce maintenance and the turnover rate of oil hydraulic motor, improve working efficiency, reduce cost.
Above-described embodiment is described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technological scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.
Claims (2)
1. a underwater hydraulic motor and shaft seal, it comprises oil hydraulic motor, axle and impeller, it is characterized in that: the shaft of oil hydraulic motor (1) is connected with axle (3) by coupling (2), coupling (2) is connected with key with axle (3), the other end of axle (3) is fixed with impeller (4), impeller (4) is by A pressing plate (5) and bolt and axle (3) end winding support, the outside of axle (3) is fixed with A housing (6), two bearings (7) are fixed at two ends in A housing (6) respectively, two bearings (7) are supported in A housing (6), and pass through A, B bearing gland (8 and 8-1) compresses, ends A, all with A zero RunddichtringO (9) in the middle of B bearing gland (8 and 8-1) and A housing (6), A, respectively with G zero RunddichtringO (21) between B bearing gland (8 and 8-1) and axle (3), with groove (10) on B bearing gland (8-1), B bearing gland (8-1) is fixed with the half of floating sealing ring (12) by B zero RunddichtringO (11), second half of floating sealing ring (12) is fixed on B pressing plate (14) by C zero RunddichtringO (13), D zero RunddichtringO (15) is fixed with between B pressing plate (14) and axle, the side of B pressing plate (14) is fixed by plate (16) and axle (3), A housing (6) is welded together with B housing (17), B housing (17) is connected middle with E zero RunddichtringO (19) with C housing (18) by flange with bolt, C housing (18) is middle with F zero RunddichtringO (20) with oil hydraulic motor (1), C housing (18) is connected by flange bolt with oil hydraulic motor (1).
2. underwater hydraulic motor according to claim 1 and shaft seal, is characterized in that: the surface of contact of described two halves floating sealing ring (12) is facet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410577519.6A CN104329287B (en) | 2014-10-24 | 2014-10-24 | Underwater hydraulic motor and shaft seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410577519.6A CN104329287B (en) | 2014-10-24 | 2014-10-24 | Underwater hydraulic motor and shaft seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104329287A true CN104329287A (en) | 2015-02-04 |
| CN104329287B CN104329287B (en) | 2016-08-24 |
Family
ID=52404073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410577519.6A Active CN104329287B (en) | 2014-10-24 | 2014-10-24 | Underwater hydraulic motor and shaft seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104329287B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105388A (en) * | 2018-01-15 | 2018-06-01 | 中铁工程机械研究设计院有限公司 | For the improved seal structure of hydraulic motor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10301613A1 (en) * | 2003-01-17 | 2004-07-29 | Pierburg Gmbh | Motor pump unit for supplying gases like hydrogen has a combination of a gas-lubricated floating ring seal and a standard rolling bearing for a shaft |
| JP2008240837A (en) * | 2007-03-27 | 2008-10-09 | Kubota Corp | Mechanical seal device |
| CN201297275Y (en) * | 2008-11-17 | 2009-08-26 | 浙江佳力科技股份有限公司 | High-speed pump bearing bore sealing structure |
| CN202149066U (en) * | 2011-06-08 | 2012-02-22 | 昆明嘉和科技股份有限公司 | High temperature-resistant high pressure-resistant wear-resisting and corrosion-resisting centrifugal pump |
| JP2013189914A (en) * | 2012-03-13 | 2013-09-26 | Mitsubishi Heavy Ind Ltd | Turbo pump |
| CN203500097U (en) * | 2013-08-05 | 2014-03-26 | 郑州同心创远生物科技有限公司 | Novel mechanical seal waterproof medicine pump |
| CN204283984U (en) * | 2014-10-24 | 2015-04-22 | 天津天易海上工程有限公司 | Underwater hydraulic motor and shaft seal |
-
2014
- 2014-10-24 CN CN201410577519.6A patent/CN104329287B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10301613A1 (en) * | 2003-01-17 | 2004-07-29 | Pierburg Gmbh | Motor pump unit for supplying gases like hydrogen has a combination of a gas-lubricated floating ring seal and a standard rolling bearing for a shaft |
| JP2008240837A (en) * | 2007-03-27 | 2008-10-09 | Kubota Corp | Mechanical seal device |
| CN201297275Y (en) * | 2008-11-17 | 2009-08-26 | 浙江佳力科技股份有限公司 | High-speed pump bearing bore sealing structure |
| CN202149066U (en) * | 2011-06-08 | 2012-02-22 | 昆明嘉和科技股份有限公司 | High temperature-resistant high pressure-resistant wear-resisting and corrosion-resisting centrifugal pump |
| JP2013189914A (en) * | 2012-03-13 | 2013-09-26 | Mitsubishi Heavy Ind Ltd | Turbo pump |
| CN203500097U (en) * | 2013-08-05 | 2014-03-26 | 郑州同心创远生物科技有限公司 | Novel mechanical seal waterproof medicine pump |
| CN204283984U (en) * | 2014-10-24 | 2015-04-22 | 天津天易海上工程有限公司 | Underwater hydraulic motor and shaft seal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105388A (en) * | 2018-01-15 | 2018-06-01 | 中铁工程机械研究设计院有限公司 | For the improved seal structure of hydraulic motor |
| CN108105388B (en) * | 2018-01-15 | 2024-03-08 | 中铁工程机械研究设计院有限公司 | Improved sealing structure for hydraulic motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104329287B (en) | 2016-08-24 |
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