CN104879478B - Sealing device of amphibious track-laying vehicle side speed reducer - Google Patents
Sealing device of amphibious track-laying vehicle side speed reducer Download PDFInfo
- Publication number
- CN104879478B CN104879478B CN201510353572.2A CN201510353572A CN104879478B CN 104879478 B CN104879478 B CN 104879478B CN 201510353572 A CN201510353572 A CN 201510353572A CN 104879478 B CN104879478 B CN 104879478B
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- China
- Prior art keywords
- sealing
- speed reducer
- oil
- side speed
- ring
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- 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.)
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Classifications
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Of Bearings (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The invention belongs to the technical field of amphibious track-laying vehicle side speed reducers, and relates to a sealing device of an amphibious track-laying vehicle side speed reducer. The sealing device comprises an oil retainer, a bearing cap, a seal ring, two oil seals, a spacer bush and an output shaft. The sealing device has the sealing effects of preventing solid impurities such as dirt and soil outside a vehicle from entering the interior of a side speed reducer box body to damage internal parts, preventing liquid (water or seawater) in the work environment from entering the interior of the side speed reducer box body to rust and damage the internal parts and preventing gear lubricating oil in the side speed reducer box body from being leaked out of the vehicle. Compared with the prior art, the sealing device of the amphibious track-laying vehicle side speed reducer has the following advantages that dust prevention, water resistance and oil leakage prevention can be effectively achieved, the side speed reducer can be better sealed, and therefore the vehicle can meet the usage requirements of the speed reducer; the maintenance is convenient.
Description
Technical field
The invention belongs to amphibious tracked vehicle side speed reducer technical field, is related to a kind of amphibious tracked vehicle side and slows down
The sealing device of device.
Background technology
The side speed reducer that at present China's amphibious tracked vehicle is used is the important component part of vehicle power transmission, it with
The moment of torsion that fixed drive ratio increase is transmitted from gearbox, and accordingly reduce the rotating speed of driving wheel.Side speed reducer is arranged on before vehicle
Square both sides, because its power output is to driving wheel, the driven axle output end being connected with driving wheel must have sealing device, and offside subtracts
Fast device casing is sealed.Because amphibious vehicle has marine driving cycle, seawater has very strong corrosiveness, the rusty stain after corrosion
Easily abradable seal face, destroys sealing structure, and water inlet phenomenon often occurs in side speed reducer Jing.Existing sealing device cannot meet
The use requirement of vehicle.
The content of the invention
(1) technical problem to be solved
The technical problem to be solved in the present invention is：How at present amphibious endless-track vehicle side speed reducer output sealing is solved
Problem.
(2) technical scheme
To solve above-mentioned technical problem, the present invention provides a kind of sealing device of amphibious tracked vehicle side speed reducer, should
Sealing device includes：Oil scraper ring 2, bearing cap 3, sealing ring 7, the first oil sealing 4, the second oil sealing 6, spacer 5, output shaft 1；
The oil scraper ring 2 is arranged on output shaft 1, and one end is provided with ring body protuberance and ring body depressed part；Bearing cap 3 is installed
On the casing 10 of side speed reducer, one end is provided with cover panel and body recess portion；Oil scraper ring 2 and each self installation of bearing cap 3
Afterwards, ring body protuberance, ring body depressed part and cover panel and body recess portion cooperate, and are formed at binding site for preventing
The labyrinth seal that only oarse-grained object impurity is entered inside casing 10；
The sealing ring 7 is arranged on bearing cap 3 towards on the inner surface one end in casing 10, the end of the sealing ring 7
Three lips are provided with, three lips cooperatively form three seals with the face of cylinder of output shaft 1；
The oil sealing 6 of first oil sealing 4 and second, is installed in bearing cap 3 towards the inner surface other end in casing 10
On；Wherein, the first oil sealing 4 is arranged close to the one end of sealing ring 7, and lip is outwardly；Second oil sealing 6 is installed inside casing 10,
And lip is towards the inner side of casing 10；Separated by spacer 5 between first oil sealing 4 and the second oil sealing 6.
Wherein, three lips of the sealing ring 7, two of which lip towards outside casing 10, a lip towards in casing 10,
With the cylindrical of output shaft 1 into three seals；The material of sealing ring 7 adopts polyurethane material.
(3) beneficial effect
The present invention provides a kind of sealing device of amphibious tracked vehicle side speed reducer, and it includes：Oil scraper ring, bearing cap,
Sealing ring, 2 oil sealings, spacer, output shafts.Its sealing function has：Prevent the solid impurity approaching sides such as car outer dust, soil from slowing down
Device box house, damages inner body；Portion in liquid (water or seawater) the approaching side reduction case body of the working environment for preventing,
Corrosion, damage inner body；Prevent the gear lubricant in side speed reducer casing from leaking into outside car.
Compared with prior art, the present invention possesses following beneficial effect：
The present invention sealing device can effectively dust-proof, waterproof, oil-leakage-prevention, side speed reducer can be sealed well,
Enable the vehicle to meet its use requirement；And maintain conveniently.
Description of the drawings
Fig. 1 is the sealing device structure figure of the present invention.
Fig. 2 is the ring structure figure of the present invention.
Specific embodiment
To make the purpose of the present invention, content and advantage clearer, with reference to the accompanying drawings and examples, to the present invention's
Specific embodiment is described in further detail.
To solve problem of the prior art, the present invention provides a kind of sealing device of amphibious tracked vehicle side speed reducer,
As shown in Figures 1 and 2, the sealing device includes：Oil scraper ring 2, bearing cap 3, sealing ring 7, the first oil sealing 4, the second oil sealing 6, every
Set 5, output shaft 1；
The oil scraper ring 2 is arranged on output shaft 1 by bolt, and one end is provided with ring body protuberance and ring body depressed part；Axle
Hold lid 3 to be arranged on the casing 10 of side speed reducer by bolt, one end is provided with cover panel and body recess portion；Oil scraper ring 2
After each self installation of bearing cap 3, ring body protuberance, ring body depressed part and cover panel and body recess portion cooperate, knot
Close position to be formed for preventing oarse-grained object impurity from entering the labyrinth seal inside casing 10；The labyrinth seal such as Fig. 1
It is shown, substantially engagement type sealing structure；
The sealing ring 7 is arranged on bearing cap 3 towards on the inner surface one end in casing 10, the end of the sealing ring 7
Three lips are provided with, three lips cooperatively form three seals with the face of cylinder of output shaft 1, and its effect is to prevent dust from entering
Enter box house；
The oil sealing 6 of first oil sealing 4 and second, is installed in bearing cap 3 towards the inner surface other end in casing 10
On；Wherein, the first oil sealing 4 is arranged close to the one end of sealing ring 7, and lip is outwardly；Second oil sealing 6 is installed inside casing 10,
And lip is towards the inner side of casing 10；Separated by spacer 5 between first oil sealing 4 and the second oil sealing 6.
Wherein, three lips of the sealing ring 7, two of which lip towards outside casing 10, a lip towards in casing 10,
With the cylindrical of output shaft 1 into three seals；The material of sealing ring 7 adopts polyurethane material.
The present invention is described in detail with reference to specific embodiment.
Embodiment
As shown in figure 1, the sealing structure of the present embodiment includes：Oil scraper ring 2, bearing cap 3, sealing ring 7, the first oil sealing 4,
Two oil sealings 6, spacer 5, output shaft 1.
Oil scraper ring 2 is arranged on output shaft by bolt, and bearing cap 3 is arranged on casing 10 by bolt, the He of oil scraper ring 2
The structure of bearing cap 3 complements each other to form labyrinth seal, and the structure can effectively prevent oarse-grained object impurity from entering in casing
Portion.
Sealing ring 7 is arranged on the inside of bearing cap 3, and it is close that lip and the face of cylinder of output shaft 1 of sealing ring 7 cooperatively form three roads
Envelope, its effect is to prevent dust from entering box house.
The present invention has twice oil sealing 4,6, all installed in the inside of bearing cap 3, near the lip court of oil sealing 4 of the one end of sealing ring 7
Outward, its effect is to prevent water or other liquid in working environment from entering inside casing 10；Lip is towards the oil sealing 6 inside casing 10
It is to prevent the gear lubricant inside casing 10 from leaking out casing.
Separated with spacer 5 between two oil sealings 4,6, between formed in annular shoe cream room, annular shoe cream room 9 full of lubrication
Fat, lubricating grease ensure that oil sealing 4,6 lips have at work sufficiently lubrication, and oil sealing 4,6 lips are not allowed fragile.In output shaft
The hydraulic fluid port 8 that lubricating grease is filled to annular shoe cream room 9 is designed with 1 end face, hydraulic fluid port 8 is by the oil duct inside output shaft 1 and annular
Shoe cream room 9 is communicated, and when being maintained, the lubricating grease of annular shoe cream room 9 need to be changed and supplemented, and turns on the end face of output shaft
The bolt of upper two hydraulic fluid ports 8, thereto a hydraulic fluid port 8 fills lubricating grease, until another hydraulic fluid port 8 has the new lubricating grease for supplementing to flow out,
Illustrate that lubricating grease is changed and supplemented work and completes, maintain very convenient.
Shown in Fig. 2, the sealing ring 7 of the present invention is designed with 3 lips, two of which lip outwardly, a lip inwardly, with
The cylindrical of output shaft 1 is sealed into 3 roads, and the dirt exclusion capabilities of sealing ring 7 are relevant with the tightness degree of contact surface, contacts tighter anti-
Dirt ability is better, but frictional resistance is bigger.Therefore the lip of sealing ring 7 of the present invention and output shaft sealing surface take 0.05mm～
The gap of 0.1mm coordinates, and the smoothness requirements on the face of cylinder of output shaft are of a relatively high, and the maximum of smoothness requirements Ra is
0.8μm.The material of sealing ring 7 of the present invention adopts polyurethane material, polyurethane material to have superior anti-wear performance, its anti-wear performance
It is 3～10 times of natural rubber；Polyurethane material also has excellent mechanical property, its tensile strength, elongation at break, tear-proof
The mechanical property of intensity is all significantly better than General Purpose Rubber；The simultaneously resistance to grease performance of polyurethane material, resistance to low temperature, ageing-resistant
Performance is better than rubber.Jing test of many times proves that the dust-proof effect of sealing ring 7 of the present invention is fine.
To sum up, the present invention provides a kind of sealing device of amphibious armor vehicle side speed reducer.The sealing device can be effectively
Dust-proof, waterproof, oil-leakage-prevention, to side speed reducer multi-azimuth tridimensional formula sealing can be carried out, and enable the vehicle to meet its use requirement, especially
It is the seal request of marine operating mode, and maintains conveniently.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, on the premise of without departing from the technology of the present invention principle, some improvement and deformation can also be made, these improve and deform
Also should be regarded as protection scope of the present invention.
Claims (2)
1. a kind of sealing device of amphibious tracked vehicle side speed reducer, it is characterised in that the sealing device includes：Oil scraper ring
(2), bearing cap (3), sealing ring (7), the first oil sealing (4), the second oil sealing (6), spacer (5), output shaft (1)；
On output shaft (1), one end is provided with ring body protuberance and ring body depressed part to the oil scraper ring (2)；Bearing cap (3) is pacified
It is mounted on the casing of side speed reducer (10), one end is provided with cover panel and body recess portion；Oil scraper ring (2) and bearing cap (3)
After each self installation, ring body protuberance, ring body depressed part and cover panel and body recess portion cooperate, shape at binding site
Into the labyrinth seal for being used to prevent oarse-grained object impurity from entering casing (10) inside；
The sealing ring (7) installed in bearing cap (3) towards on the inner surface one end in casing (10), the sealing ring (7)
End is provided with three lips, and three lips cooperatively form three seals with the face of cylinder of output shaft (1)；
First oil sealing (4) and the second oil sealing (6), are installed in bearing cap (3) another towards the inner surface in casing (10)
On one end；Wherein, the first oil sealing (4) is arranged close to sealing ring (7) one end, and lip is outwardly；Second oil sealing (6) is installed near case
Body (10) is internal, and lip is towards casing (10) inner side；Between first oil sealing (4) and the second oil sealing (6) by spacer (5) every
Open, between form annular shoe cream room (9), lubricating grease is full of in annular shoe cream room (9)；
Hydraulic fluid port (8) and internal galleries, the internal galleries that hydraulic fluid port (8) passes through output shaft (1) are designed with output shaft (1) end face
Communicate with annular shoe cream room (9), by hydraulic fluid port (8) lubricating grease of annular shoe cream room (9) is changed and supplemented.
2. the sealing device of amphibious tracked vehicle side speed reducer as claimed in claim 1, it is characterised in that the sealing ring
(7) three lips, towards casing (10) outward, a lip is interior towards casing (10), the cylinder with output shaft (1) for two of which lip
Face forms three seals；Sealing ring (7) material adopts polyurethane material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510353572.2A CN104879478B (en) | 2015-06-24 | 2015-06-24 | Sealing device of amphibious track-laying vehicle side speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510353572.2A CN104879478B (en) | 2015-06-24 | 2015-06-24 | Sealing device of amphibious track-laying vehicle side speed reducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104879478A CN104879478A (en) | 2015-09-02 |
| CN104879478B true CN104879478B (en) | 2017-05-10 |
Family
ID=53947090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510353572.2A Active CN104879478B (en) | 2015-06-24 | 2015-06-24 | Sealing device of amphibious track-laying vehicle side speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104879478B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555633A (en) * | 2019-01-29 | 2019-04-02 | 广州宝力特密封技术有限公司 | Disc and hydraulic turbine water pilot bearing |
| CN114412981B (en) * | 2021-12-14 | 2023-10-20 | 岚图汽车科技有限公司 | Maintenance-free electric drive half shaft structure of passenger car |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003329108A (en) * | 2002-05-15 | 2003-11-19 | Aichi Mach Ind Co Ltd | Mounting structure of baffle plate |
| CN201723661U (en) * | 2010-07-13 | 2011-01-26 | 浙江宁野农业装备有限公司 | Speed change mechanism used for two-drive tractor |
| CN202326912U (en) * | 2011-11-04 | 2012-07-11 | 上海剑豪传动机械有限公司 | Gear case for special railway vehicle |
| CN104511491A (en) * | 2013-09-30 | 2015-04-15 | 西北机器有限公司 | Wire-drawing machine traction wheel water-cooling structure |
| CN204921932U (en) * | 2015-06-24 | 2015-12-30 | 北京北方车辆集团有限公司 | Sealing device of amphibious crawler side reduction gear |
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2015
- 2015-06-24 CN CN201510353572.2A patent/CN104879478B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104879478A (en) | 2015-09-02 |
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