GB2473954A - A sealing system for a hull of an amphibious vehicle - Google Patents
A sealing system for a hull of an amphibious vehicle Download PDFInfo
- Publication number
- GB2473954A GB2473954A GB201016066A GB201016066A GB2473954A GB 2473954 A GB2473954 A GB 2473954A GB 201016066 A GB201016066 A GB 201016066A GB 201016066 A GB201016066 A GB 201016066A GB 2473954 A GB2473954 A GB 2473954A
- Authority
- GB
- United Kingdom
- Prior art keywords
- seal
- sealing system
- hull
- drive transmission
- transmission element
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
- B60F3/00—Amphibious vehicles, i.e. vehicles capable of travelling both on land and on water; Land vehicles capable of travelling under water
- B60F3/0007—Arrangement of propulsion or steering means on amphibious vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
- B60F3/00—Amphibious vehicles, i.e. vehicles capable of travelling both on land and on water; Land vehicles capable of travelling under water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
- B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/22—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
- B60K17/24—Arrangements of mountings for shafting
-
- 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
- F16J15/02—Sealings between relatively-stationary surfaces
-
- 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
- F16J15/166—Sealings between relatively-moving surfaces with means to prevent the extrusion of the packing
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Motor Power Transmission Devices (AREA)
- Sealing Devices (AREA)
Abstract
An amphibious vehicle 1 hull sealing system provides a watertight seal between a drive transmission element 12 and an opening in a vehicle hull 10 at which the drive transmission element 12 is resiliently mounted. The sealing system 25 includes a first seal part 26 for mounting on the hull 10 at the opening 22 and an associated second seal part 27 for mounting on the drive transmission element 12. The seal parts 26, 27 are interconnected by a flexible connector element 32 which allows relative movement between the drive transmission element 12 and the hull 10 whilst maintaining a seal therebetween.
Description
"A Sealing System"
IntroductIon
This invention relates to the sealing of drive transmission elements where they pass through the body shell of a vehicle, particularly in amphibious vehicles.
The invention particularly relates to two-part amphibious articulated vehicles having a front tractor part in which a powerpack is mounted and a rear trailer part having a load carrying compartment. An articulating joint connects the two parts and allows vertical, lateral and torsional moving of the two parts relative to each other. Steering is effected by forcing articulation of the joint in the horizontal plane thus causing the vehicle to move to left or right as required. The joint is capable of significant articulation in all planes.
The powerpack is connected to differential axle drive systems in each vehicle part and the drive is connected to these differential axle drive systems by means of articulated dnveshafts. To make the vehicle amphibious, it is necessary to provide watertight seals where drive transmission elements pass through the hull or body shell of the vehicle. However, as the drive transmission elements must be resiliently mounted to minimise the transmission of noise and vibration to the hull in use, it is not possible to mount the transmission elements rigidly to the hull wall to provide a
suitable seal.
The present invention is directed towards overcoming this problem.
Statements of Invention
According to the invention, there is provided a sealing system for sealing between a drive transmission element and an opening in a vehicle body shell or hull at which the drive transmission element is resiliently mounted, the sealing system including a first seal part for mounting on the hull at the opening, an associated second seal part for mounting on the drive transmission element, said seal parts being interconnected by a flexible connector element which allows relative movement between the drive transmission element and the hull whilst maintaining a seal therebetween.
In one embodiment of the invention the second seal part has a complementary shape to an outer profile in the drive transmission element.
In another embodiment the flexible connector element is sufficiently flexible to allow relative movement between the drive transmission element and the hull in the range of 5mm-2Omm In another embodiment the flexible connector element has a pleated concertina or bellows-like construction.
In another embodiment the second seal part sealingly engages with a complementary mounting groove extending around the outer profile of the drive transmission element.
In another embodiment one seal part has an endless rim which extends around the outer profile of the drive transmission element and the other seal part has an associated receiver slot, the rim sealingly engaging within the receiver slot to interconnect the seal parts.
In another embodiment the first seal part has a mounting flange for attachment at a periphery of the opening, with the endless rim extending outwardly therefrom, and the receiver slot is provided on the second seal part.
In another embodiment the first seal part has a seal ring generally conforming to the opening in the hull and the outer profile of the drive transmission element and has a mounting flange at one end for attachment to the hull at a periphery of the opening, and the second seal part has an inner part and an outer part interconnected by the flexible connector element which has a pleated bellows construction, said inner part being sealingly engagable within the mounting groove on the drive transmission element and said outer part having a slot designed to fit intimately over a rim of the ring of the first seal part and provide a seal therebetweeri. -3..
In another embodiment the flexible connector element is constructed of a flexible material which provides a water barrier.
In another embodiment the flexible connector is constructed of a synthetic material such as neoprene, synthetic rubber or other such impervious synthetic materials.
In another embodiment the flexible connector element is of metallic construction or a combination of metallic and rubber-type materials.
In another aspect the invention provides a drive transmission element including a bearing housing having a peripheral mounting flange for mounting the bearing housing at an opening in a vehicle hull or body shell, a driveshaft assembly rotatably mounted within the housing by a bearing and projecting outwardly from each end of the bearing housing, a drive coupling at each end of the driveshaft assembly, and a seal mounted between the driveshaft assembly and the bearing housing.
In another embodiment a driveline brake is mounted on the driveshaft assembly.
In another embodiment driveshaft assembly comprises a driveshaft rotatably mounted by bearings within the housing and projecting outwardly from each end of the housing, a drive connector flange at an outer end of the driveshaft, a drive coupling demountabry secured at an inner end of the driveshaft and drivably connected to the driveshaft, said drive coupling carrying the driveline brake.
In a further aspect the invention provides a vehicle incorporating the sealing system and/or the drive transmission element.
Detailed DescriptIon of the InventIon
The invention will be more clearly understood by the following description of some embodiments thereof, given by way of example only, in which: Fig. 1 is a schematic side elevational view showing an amphibious vehicle according to the invention incorporating the sealing system of the invention; 7.4..
Fig. 2 is a detail perspective view of a drive transmission element of the vehicle; Fig. 3 is a detail, partially sectioned, side elevational view showing the drive transmission element of Fig. 2 mounted in an opening in a hull of the vehicle; Fig. 4 is an elevational view of a sealing element of the sealing system of the invention; Fig. 5 is a side elevational view of a first seal part of the sealing element of Fig. 4, shown mounted in the hull opening; Fig. 6 is a side sectional elevational view of a second seal part of the sealing element of Fig. 4; and Fig. 7 is a detail sectional elevationaJ view of another hull sealing system of the invention.
Referring to the drawings, there is illustrated an amphibious vehicle according to the invention, indicated generally by the reference numeral 1. The vehicle 1 has a front tractor part 2 and a rear trailer part 3 having a load carrying compartment. The vehicle parts 2, 3 are interconnected by an articulating joint 4 which allows vertical, lateral and torsional movement of the two parts 2, 3 relative to each other. By forcing articulation of the joint 4, the vehicle 1 can be steered to the left or right, as required, in the usual way. A powerpack 6 is mounted in the front tractor part 2. Articulated prop shafts 7 connect the powepack 6 to differential axle drive systems 8, 9 in each vehicle part 2, 3. These differential drive axle systems 8, 9 are mounted on flexible mounts to reduce transmitted vibrations to a hull 10, 11 of each vehicle part 2, 3, thus permitting relative motion between the differential axle drive systems 8, 9 and the hull bodieslo,11.
The differential axle drive system 8 in the tractor part 2 containing the powerpack 6, has an integrated transfer gearbox 12 by means of which the drive is connected to both of the differential axle drive systems 8, 9. In carrying the drive from the power pack 6 to said differential axle drive systems 8, 9 and also from the tractor part 2 to the trailer part 3, it is necessary for the drivelines to exit the hull 10 interior, as the differential axle drive systems 8, 9 are necessarily mounted outside the hull 10 to connect to the drive wheels. To make the vehicle amphibious, watertight seals are provided to seal a front interface 14 between the hull 10 and the forward differential axle drive assembly 8 and also a rear interface 16 where the driveshafts 7 penetrate the hull 10 to connect between the tractor part 2 and the trailer part 3 of the vehicle 1.
Referring in particular to Figs. 2 to 6, a front seal for the front interface 14 will be described in more detail. Fig. 2 shows the differential axle drive system 8 with the integrated transfer gearbox 12. The integrated transfer gearbox 12 has an input shaft 18 which connects by a driveshaft 7 with the powerpack 6. An output shaft 19 of the integrated transfer gearbox 12 is connected by prop shafts 7 with the differential axle drive system 9 in the trailer part 3. A seal mounting groove 20 extends around an outer profile of the integrated transfer gearbox 12.
Fig. 3 shows the mounting of the integrated transfer gearbox 12 in an associated opening 22 in the hull 10 of similar general shape to the outer profile of the integrated transfer gearbox 12, with the differential axle drive system 8 located outside the hull 10. A sealing system 25 for mounting between the integrated transfer gearbox 12 and the hull 10 to provide a watertight seal at the opening 22 is shown in Figs. 4 to 6.
This seal 25 comprises a first seal part 26 for mounting on the hull 10 at the opening 22 and an associated second seal part 27 for mounting on the integrated transfer gearbox 12.
The first seal part 26 comprises a seal ring 29, generally conforming to the shape of the opening 22 and the outer profile of the integrated transfer gearbox 12, and having a mounting flange 28 at one end. The mounting flange 28 is rigidly secured to the hull wall 10 at a periphery of the opening 22 by fasteners 36 forming a sealed joint between the mounting flange 28 and the hull wall 10.
The second seal part 27 has an inner part 30 and an outer part 31 interconnected by a flexible connector element 32 having a pleated bellows construction. The inner part is sealingly engagable within the mounting groove 20 on the integrated transfer gearbox 12. Also, the outer part 31 has a slot 34 designed to fit intimately over a rim of the ring 29 of the first seal part 26 and provide a seal therebetween.
It will be noted that the flexible connector 32 allows relative movement between the seal parts fixed to the hull 10 and the integrated transfer gearbox 12, this movement being such as to allow up to 15 mm of movement between the seal parts, and a similar relative movement between the integrated transfer gearbox 12 and the hull 10.
The seal element may be of any suitable materials which provide a watertight seal.
For example a synthetic material such as neoprene, synthetic rubber or other such impervious synthetic materials may be used. Further, the seal element may be of metallic construction or a combination of metallic and rubber type materials.
Referring now to Fig. 7, there is shown a sealing system, indicated generally by the reference numeral 40, for providing a seal where the prop shaft 7 penetrates the hull of the tractor part 2 at rear interface 16 to pass to the trailer part 3 of the vehicle.
It will be noted that there is significant relative movement between the prop shaft 7 and the hull wall in both the vertical and horizontal planes precluding the use of a conventional shaft sealing arrangement between the hull wall and the shaft. The steering and articulation of the two vehicle parts 2, 3 create significant forces at this point and the inclusion of a transmission disc brake in the prop shafts adds additional forces. The bulk of the powerpack 6 and the very constricted volume of the tractor part 2 imposes significant space constraints on any proposed sealing arrangement, as does the necessity to readily uncouple the drive system from the outside to enable different trailer parts 3 to be fitted in the field without breaking the seal arrangement in the hull waIl 10 of the tractor part 2.
It will be appreciated that the sealing system 40 of the present invention is of minimum length and can carry all imposed forces. The sealing system 40 has a bearing housing 41 with a peripheral mounting flange 42 which is bolted rigidly to the hull 10 wall to provide a sealed joint at an opening 43 within which the bearing housing 41 is mounted. A driveshaft 45 having a flanged end 46 is rotatably mounted within the bearing housing 41 by bearings 47. It will be noted that the flange 46 may be easily decoupled from the prop shaft 7 of the trailer part 3 to allow the two vehicle parts 2, 3 to be separated. At an inner end of the driveshaft 45, a drive coupling 48 has a sleeved body which fits over an inner end of the driveshaft 45 and is retained thereon by a suitable retaining nut 49. Cooperating splines 50 on the driveshaft 45 and drive coupling 48 drivably interconnect the drive coupling 48 and driveshaft 45. A drive connector flange 52 at an inner end of the drive coupling 48 connects to the prop shafts 7 delivering power from the powerpack 6. A drive line brake 54 is bolted to an associated mounting flange 55 projecting radially outwardly intermediate the ends of the drive coupling 48. An inner end 56 of the drive coupling 48 is received within a bearing housing 41, a seal 58 being provided between said inner end 56 and an inner wall 59 of the bearing housing 41.
It will be appreciated that the composite assembly 40 provides the multiple functions of a hull seal, a brake mounting and the capacfty to absorb directly into the hull the considerable forces generated by the prop shaft and the articulating and steering mechanism and easy decoupling of the prop shaft for changing the trailer part 3.
The invention is not limited to the embodiments hereinbefore described which may be varied in both construction and detail within the scope of the appended claims.
Claims (14)
- _____ -8-CL.AJMS 1. An amphibious vehicle hull sealing system for providing a watertight seal between a drive transmission element and an opening in a vehicle hull at which the drive transmission element is resiliently mounted, the sealing system including a first seal part for mounting on the hull at the opening, an associated second seal part for mounting on the drive transmission element, said seal parts being interconnected by a flexible connector element which allows relative movement between the drive transmission element and the hull whilst maintaining a seal therebetween, the second seal part having a complementary shape to an outer profile in the drive transmission element.
- 2. A sealing system as claimed in claim 1 wherein the flexible connector element is sufficiently flexible to allow relative movement between the drive transmission element and the hull in the range of 5mm-2Omm.
- 3. A sealing system as claimed in any preceding claim wherein the flexible connector element has a pleated concertina or bellows-like construction.
- 4. A sealing system as claimed in any preceding claim wherein the second seal part sealingly engages with a complementary mounting groove extending around the outer profile of the drive transmission element.
- 5. A sealing system as claimed in any preceding claim wherein one seal part has an endless rim which extends around the outer profile of the drive transmission element and the other seal part has an associated receiver slot, the rim sealingly engaging within the receiver slot to interconnect the seal parts.
- 6. A sealing system as claimed in any preceding claim wherein the first seal part has a mounting flange for attachment at a periphery of the opening, with the endless rim extending outwardly therefrom, and the receiver slot is provided on the second seal part.
- 7. A sealing system as claimed in any preceding claim wherein the first seal part has a seal ring generally conforming to the opening in the hull and the outer profile of the drive transmission element and has a mounting flange at one end for attachment to the hull at a periphery of the opening, and the second seal part has an inner part and an outer part interconnected by the flexible connector element which has a pleated bellows construction, said inner part being sealingly engagable within the mounting groove on the drive transmission element and said outer part having a slot designed to fit intimately over a rim of the ring of the first seal part and provide a seal therebetween.
- 8. A sealing system as claimed in any preceding claim wherein the flexible connector element is constructed of a flexible material which provides a water barrier.
- 9. A sealing system as claimed in any preceding claim wherein the flexible connector is constructed of a synthetic material such as neoprene, synthetic rubber or other such impervious synthetic materials.
- 10. A sealing system as claimed in any preceding claim the flexible connector element is of metallic construction or a combination of metallic and rubber-type materials.
- 11. A sealing system as claimed in any preceding claim further including a bearing housing having a peripheral mounting flange for mounting the bearing housing at an opening in a vehicle hull or body shell, a driveshaft assembly rotatably mounted within the housing by a bearing and projecting outwardly from each end of the bearing housing, a drive coupling at each end of the driveshaft assembly, and a seal mounted between the driveshaft assembly and the bearing housing.
- 12. A drive transmission element as claimed in claim 11 wherein a driveline brake is mounted on the driveshaft assembly.
- 13. A drive transmission element as claimed in claim 12 wherein the driveshaft assembly comprises a driveshaft rotatably mounted by bearings within the housing and projecting outwardly from each end of the housing, a drive connector flange at an outer end of the driveshaft, a drive coupling demountably secured at an inner end of the driveshaft and drivably connected to the driveshaft, said drive coupling carrying the driveline brake.
- 14. An amphibious vehicje incorporating the sealing system as claimed in any preceding claim.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IE20090740 | 2009-09-24 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB201016066D0 GB201016066D0 (en) | 2010-11-10 |
| GB2473954A true GB2473954A (en) | 2011-03-30 |
| GB2473954B GB2473954B (en) | 2016-01-20 |
Family
ID=43127894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1016066.1A Active GB2473954B (en) | 2009-09-24 | 2010-09-24 | A sealing system |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB2473954B (en) |
| IE (1) | IES20100619A2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410375A (en) * | 2011-08-23 | 2012-04-11 | 中国北方车辆研究所 | Waterborne sealing device for amphibious vehicle |
| CN106218602A (en) * | 2016-08-21 | 2016-12-14 | 张玉华 | One is paddled vehicular rescue robot |
| CN109291742A (en) * | 2018-09-07 | 2019-02-01 | 东风汽车集团有限公司 | The sealing isolation mounting and its connection structure of amphibious vehicle transmission system |
| US20220055433A1 (en) * | 2018-12-13 | 2022-02-24 | Kseniya Maksimovna Belonogova | Multifunctional all-terrain vehicle |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113071273B (en) * | 2021-04-21 | 2022-04-26 | 山东大学 | Amphibious soft robot |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0168376A2 (en) * | 1984-07-09 | 1986-01-15 | STEYR-DAIMLER-PUCH Aktiengesellschaft | Sealing for an aperture disposed in the sump of a motor vehicle |
| US20100044973A1 (en) * | 2008-08-25 | 2010-02-25 | General Motors Corporation@@ Gm Global Technology Operations, Inc. | Seals for transmission drive motors |
| CN201461954U (en) * | 2009-08-03 | 2010-05-12 | 杜长春 | Traveling-machine combined-type bilateral-rotation transmission shaft oil seal assembly |
-
2010
- 2010-09-24 GB GB1016066.1A patent/GB2473954B/en active Active
- 2010-09-24 IE IES20100619 patent/IES20100619A2/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0168376A2 (en) * | 1984-07-09 | 1986-01-15 | STEYR-DAIMLER-PUCH Aktiengesellschaft | Sealing for an aperture disposed in the sump of a motor vehicle |
| US20100044973A1 (en) * | 2008-08-25 | 2010-02-25 | General Motors Corporation@@ Gm Global Technology Operations, Inc. | Seals for transmission drive motors |
| CN201461954U (en) * | 2009-08-03 | 2010-05-12 | 杜长春 | Traveling-machine combined-type bilateral-rotation transmission shaft oil seal assembly |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410375A (en) * | 2011-08-23 | 2012-04-11 | 中国北方车辆研究所 | Waterborne sealing device for amphibious vehicle |
| CN102410375B (en) * | 2011-08-23 | 2014-08-20 | 中国北方车辆研究所 | Waterborne sealing device for amphibious vehicle |
| CN106218602A (en) * | 2016-08-21 | 2016-12-14 | 张玉华 | One is paddled vehicular rescue robot |
| CN109291742A (en) * | 2018-09-07 | 2019-02-01 | 东风汽车集团有限公司 | The sealing isolation mounting and its connection structure of amphibious vehicle transmission system |
| US20220055433A1 (en) * | 2018-12-13 | 2022-02-24 | Kseniya Maksimovna Belonogova | Multifunctional all-terrain vehicle |
| US11958324B2 (en) * | 2018-12-13 | 2024-04-16 | Kseniya Maksimovna Belonogova | Multifunctional all-terrain vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2473954B (en) | 2016-01-20 |
| IE20100620A1 (en) | 2011-03-30 |
| IES20100619A2 (en) | 2011-03-30 |
| GB201016066D0 (en) | 2010-11-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) |
Free format text: REGISTERED BETWEEN 20200220 AND 20200226 |