CN201162821Y - Oil leak-proof bearing cover - Google Patents
Oil leak-proof bearing cover Download PDFInfo
- Publication number
- CN201162821Y CN201162821Y CNU200720126036XU CN200720126036U CN201162821Y CN 201162821 Y CN201162821 Y CN 201162821Y CN U200720126036X U CNU200720126036X U CN U200720126036XU CN 200720126036 U CN200720126036 U CN 200720126036U CN 201162821 Y CN201162821 Y CN 201162821Y
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- China
- Prior art keywords
- oil
- drive back
- back thread
- sealing
- lid
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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.)
- Expired - Lifetime
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Abstract
The utility model discloses an oil leak resistant bearing cover which comprises a cover body and an oil seal arranged at one end of the cover body. A levorotatory oil drive back thread is arranged on the front end of the oil seal along the inner wall of the cover body; the oil drive back thread is connected with an oil drive back groove arranged on the cover body. The bearing cover is characterized by reasonable design, simple structure, advanced technology and low cost. Due to the oil drive back thread technology, the bearing cover of the utility model can play a favorable sealing effect by only equipping with one oil seal.
Description
Technical field
The utility model relates to a kind of mechanical type transmission seal technical field, is specifically related to a kind of pump action that utilizes, and the medium that leaks along leakage-gap is pushed away drive away, reduces oil pressure, to realize the oil sealing bearing lid of sealing.
Background technique
The sealing of domestic automobile transmission device at present all adopts rotary shaft oil seal to realize.In order to reduce oil seepage phenomena, generally the output terminal at gearbox, transmission shaft assembles two oil sealings, i.e. dual-oil seals.The dual-oil seal structure has solved oil sealing seepage phenomenon effectively, but has increased the cost of product.Degree of finish, hardness, the axle head chamfering structure of the sealing effect of rotary shaft oil seal and the structure of oil sealing, material, processing technology and the sympodium that matches with it are relevant with press-loading process.Along with the fast development of China's processing manufacturing industry, quality of product is significantly improved, and the sealing effect of rotary shaft oil seal is also become better and better.But, along with the truck drive shaft rotating speed improves, the increase of bearing capacity, the rising of oily temperature and operating ambient temperature is had higher requirement to the rotation axis seal technology, requires simultaneously to reduce production costs.Traditional sealing means, sealing configuration have been difficult to satisfy the demand of development.
Summary of the invention
The purpose of this utility model is at above-mentioned the deficiencies in the prior art, provide a kind of reasonable in design, simple in structure, cost is low and the oil sealing bearing of good sealing effect lid.
For achieving the above object, the technological scheme that the utility model adopted is: a kind of oil sealing bearing lid, comprise lid 1 and the oil sealing 2 that is arranged on lid 1 one ends, it is characterized in that: the inwall that is positioned at the front end edge lid 1 of oil sealing 2 is provided with left-handed oil drive back thread 3, and described oil drive back thread 3 is connected with oil-return groove 5 on being arranged on lid 1.
The utility model compared with prior art has the following advantages:
(1) the utility model is reasonable in design, and is simple in structure, and advanced technology is with low cost;
(2) owing to adopt the oil drive back thread technology, when output shaft of gear-box, transmission shaft high speed rotating produce vibration, transmission shaft exists beats, feasible and oil sealing cooperates axle and oil sealing generation gap, when perhaps oil sealing wearing and tearing back produces the gap with transmission shaft because of beating, the a large amount of lubricant oil that accumulate in the cutting edge place of oil sealing 2 flow to oil-return groove along oil drive back thread and are pumped into the gearbox casing the inside, make the lubricant oil at the cutting edge place of oil sealing 2 be unlikely to flow into the oil sealing rear end, form oil seepage phenomena;
(3) only need oil sealing of assembling just to be enough to play good sealing effect.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of 3 first kinds of embodiments of the utility model oil drive back thread.
Fig. 3 is the structural representation of 3 second kinds of embodiments of the utility model oil drive back thread.
Fig. 4 is the structural representation of the utility model oil drive back thread 3 the third embodiments.
Fig. 5 is the structural representation of the 4th kind of embodiment of the utility model oil drive back thread 3.
Embodiment
Below in conjunction with accompanying drawing the utility model is elaborated.
As shown in Figure 1, the utility model comprises lid 1 and is arranged on the oil sealing 2 of lid 1 one ends, and the inwall that is positioned at the front end edge lid 1 of oil sealing 2 is provided with left-handed oil drive back thread 3, and described oil drive back thread 3 is connected with oil-return groove 5 on being arranged on lid 1.
As shown in Figure 2, the cross section of described oil drive back thread 3 is a triangle; As shown in Figure 3, the cross section of described oil drive back thread 3 is a zigzag fashion; As shown in Figure 4, the cross section of described oil drive back thread 3 is trapezoidal; As shown in Figure 5, the cross section of described oil drive back thread 3 is square.
The working principle of the utility model oil sealing bearing lid is as follows:
During motor car engine work, speed changer is hung forward gears, sees from back to front, and the running shaft 6 of output axle head is for being rotated counterclockwise.Because the rotation of the high-speed gear in the gearbox makes the grease accumulation that splashes to the running shaft 6 of oil sealing 2 front ends.Under this situation, a spot of lubricant oil plays lubrication to oil sealing 2, but a large amount of lubricant oil can produce oil pressure to the cutting edge of oil sealing 2, and the time has been grown and has been easy to generate leakage.Along with the high speed rotating of running shaft 6, a large amount of lubricant oil in cutting edge the place ahead of oil sealing 2 is along with left-handed oil drive back thread 3 is pumped out, promptly so-called " pumping principle ".Lubricant oil flows to 5 li of oil-return grooves on the bearing cap along oil drive back thread 3, flows back at last in the gearbox of oil sealing front end.Remain very a spot of oil lubrication oil sealing at the cutting edge place of oil sealing 2.Like this, even running shaft 6 has violent beating, oil sealing 2 and running shaft 6 produce the gap, and perhaps oil sealing 2 is worn, and does not also have oil seepage and goes to the outside of oil sealing 2.When speed changer is hung reverse gear, see that from back to front the running shaft 6 of output terminal turns clockwise.Because back-up speed is slow, the time is short, the lubricant oil that flows to or be splashed to oil sealing 2 cutting edge places along oil drive back thread 3 is considerably less, running shaft 6 does not have violent beating yet, even there is a certain amount of lubricant oil to accumulate in the cutting edge place of oil sealing 2, can not form oil pressure yet, the cutting edge of oil sealing 2 can play good seal action, stops oil seepage to go to the oil sealing outside.Fallen behind the car, hung forward gears, output terminal running shaft 6 is rotated counterclockwise, and the lubricant oil of oil drive back thread 3 the insides is pumped out again on the bearing cap, flows to oil-return groove 5 along oil drive back thread 3, flows into gearbox at last.
Claims (2)
1, a kind of oil sealing bearing lid, comprise lid (1) and be arranged on the oil sealing (2) of lid (1) one end, it is characterized in that: the inwall that is positioned at the front end edge lid (1) of oil sealing (2) is provided with left-handed oil drive back thread (3), and described oil drive back thread (3) is connected with oil-return groove (5) on being arranged on lid (1).
2, a kind of oil sealing bearing lid according to claim 1, it is characterized in that: the cross section of described oil drive back thread (3) is triangle, trapezoidal, zigzag fashion or square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720126036XU CN201162821Y (en) | 2007-11-28 | 2007-11-28 | Oil leak-proof bearing cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720126036XU CN201162821Y (en) | 2007-11-28 | 2007-11-28 | Oil leak-proof bearing cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201162821Y true CN201162821Y (en) | 2008-12-10 |
Family
ID=40183758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720126036XU Expired - Lifetime CN201162821Y (en) | 2007-11-28 | 2007-11-28 | Oil leak-proof bearing cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201162821Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213318A (en) * | 2011-02-28 | 2011-10-12 | 中国北方车辆研究所 | Oil distribution seal device used for tracked vehicles |
| CN104847899A (en) * | 2015-05-13 | 2015-08-19 | 成都盛帮密封件股份有限公司 | PTFE (polytetrafluoroethylene) oil seal of multi-group oil return lines |
| CN109973417A (en) * | 2017-12-27 | 2019-07-05 | 宫振东 | A kind of novel bearing seal protector |
| CN112145552A (en) * | 2020-09-25 | 2020-12-29 | 西安法士特汽车传动有限公司 | Release bearing with lubricating structure and lubricating method thereof |
-
2007
- 2007-11-28 CN CNU200720126036XU patent/CN201162821Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213318A (en) * | 2011-02-28 | 2011-10-12 | 中国北方车辆研究所 | Oil distribution seal device used for tracked vehicles |
| CN104847899A (en) * | 2015-05-13 | 2015-08-19 | 成都盛帮密封件股份有限公司 | PTFE (polytetrafluoroethylene) oil seal of multi-group oil return lines |
| CN104847899B (en) * | 2015-05-13 | 2017-08-25 | 成都盛帮密封件股份有限公司 | A kind of multigroup oil drive back thread oil sealings of PTFE |
| CN109973417A (en) * | 2017-12-27 | 2019-07-05 | 宫振东 | A kind of novel bearing seal protector |
| CN112145552A (en) * | 2020-09-25 | 2020-12-29 | 西安法士特汽车传动有限公司 | Release bearing with lubricating structure and lubricating method thereof |
| CN112145552B (en) * | 2020-09-25 | 2022-05-13 | 西安法士特汽车传动有限公司 | Release bearing with lubricating structure and lubricating method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081210 |