CN204267690U - Axle main speed reducer and vehicle - Google Patents
Axle main speed reducer and vehicle Download PDFInfo
- Publication number
- CN204267690U CN204267690U CN201420734974.8U CN201420734974U CN204267690U CN 204267690 U CN204267690 U CN 204267690U CN 201420734974 U CN201420734974 U CN 201420734974U CN 204267690 U CN204267690 U CN 204267690U
- Authority
- CN
- China
- Prior art keywords
- speed reducer
- main speed
- axle main
- oil sealing
- mounting hole
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of axle main speed reducer and vehicle, this axle main speed reducer comprises the oil sealing base (10) and flange connector part (20) with seal mounting hole (11), a part for the lip part (21) of described flange connector part (20) is inserted in the described seal mounting hole of described oil sealing base, described lip part is also fixed with the dust-proof cover (40) of the outside port (12) for seal mounting hole described in shutoff, joint (41) suit of described dust-proof cover (40) is fixed on the outer circumferential face of described lip part (21), and one end of described joint (41) is formed and extend at least partially in described seal mounting hole (11) with the sealed department (42) of this seal mounting hole of shutoff (11) outside port (12).Dust-proof cover in axle main speed reducer in the utility model is not yielding, and can effectively prevent dust from entering into oil sealing installation cavity, thus improves the working life of oil sealing.
Description
Technical field
The utility model relates to a kind of vehicle running system constituent elements, particularly, relates to a kind of axle main speed reducer.In addition, the utility model also relates to vehicle.
Background technique
Oil sealing is generally used for closed parts to be lubricated, can isolate relative with outside for parts to be lubricated, thus prevents oil leak.Typically, in axle main speed reducer as shown in Figure 1, oil sealing 30 is arranged in the oil sealing installation cavity formed between flange connector part 20 and oil sealing base 10, to seal and lubricating bearings.
As shown in Figure 1, although in order to prevent dust from entering between flange connector part 20 and oil sealing 30, be usually welded with the dustproof encloser 1 of cover cap in oil sealing base 10 outside on flange connector part 20.But because dustproof encloser 1 is arranged on the outside of oil sealing base 10, therefore easily in use collided with and be out of shape.
In addition, because the opening in the gap of cover cap between the dustproof encloser 1 and oil sealing base 10 of oil sealing base 10 outside is perpendicular to the spin axis of flange connector part 20, and because the outside of dustproof encloser does not retrain, often cause excesssive gap, especially the road surface stone impact that splashed of dustproof encloser 1 and all the more so when deforming.Therefore, when axle main speed reducer is arranged on the rearmounted jackshaft of input end or drive propons, this opening is towards vehicle forward direction, and therefore dust, rainwater etc. are easy to enter into oil sealing installation cavity, thus damages oil sealing, reduces the working life of oil sealing.
Model utility content
Technical problem to be solved in the utility model is for providing a kind of axle main speed reducer, and the dust-proof cover in this axle main speed reducer is not yielding, and can effectively prevent dust from entering into oil sealing installation cavity, thus improves the working life of oil sealing.
To achieve these goals, the utility model provides a kind of axle main speed reducer, this axle main speed reducer comprises the oil sealing base and flange connector part with seal mounting hole, described oil sealing base is arranged on the input port place of bevel housing, a part for the lip part of described flange connector part is inserted in the described seal mounting hole of described oil sealing base, and between the inner peripheral surface of the outer circumferential face of described lip part and described seal mounting hole, oil sealing is installed, described lip part is also fixed with the dust-proof cover of the outside port for seal mounting hole described in shutoff, the joint suit of described dust-proof cover is fixed on the outer circumferential face of described lip part, and one end of described joint is formed and extend at least partially in described seal mounting hole with the sealed department of port outside this seal mounting hole of shutoff.
Preferably, transition fit is formed as between described joint and described lip part.
Preferably, described lip part is formed as stepped shaft to have step, and the other end of described joint abuts on this step, and is fixed by Bond.
Preferably, the outer circumferential face of described sealed department and the inner peripheral surface of described oil sealing base are formed with abrasionproof gap in port, described outside.
Preferably, described abrasionproof gap is 0.05mm ~ 0.15mm.
Preferably, described sealed department extends radially outward from described one end of described joint, and the outer surface in sealing portion is recessed in the end face outside of described oil sealing base.
Preferably, described dust-proof cover is formed as ladder tubulose, and described one end of described joint is connected to described sealed department by the transition part extended radially outward.
Preferably, described axle main speed reducer also includes ring packing dividing plate, and this ring packing dividing plate is formed interference fit by the outer circumferential face of described ring packing dividing plate and described oil sealing base and is arranged in described oil sealing base between the inner peripheral surface of port, described outside.
Preferably, described seal mounting hole is formed as shoulder hole, and this shoulder hole is greater than the diameter being provided with described oil sealing part in described seal mounting hole at the diameter of port, described outside, thus forms the step surface supporting described ring packing dividing plate.
Preferably, assemblage gap is formed with between the inner peripheral surface of described ring packing dividing plate and the outer circumferential face of described lip part.
Preferably, described ring packing dividing plate is high density polyethylene (HDPE) seal diaphragm.
The utility model also provides a kind of vehicle, comprises vehicle bridge, and described vehicle bridge is provided with according to the axle main speed reducer in technique scheme described in any one.
Pass through technique scheme, joint one end due to described dust-proof cover is formed and extend at least partially in described seal mounting hole with the sealed department of the outside port of this seal mounting hole of shutoff, therefore, dust-proof cover in axle main speed reducer described in the utility model is positioned at seal mounting hole, thus is in use not easy the active force that is subject to from the external world and is out of shape.In addition, because the sealed department shutoff of described dust-proof cover is at the outside port of seal mounting hole, therefore, the axial direction of direction along seal mounting hole in gap is there is between the sealed department of dust-proof cover and oil sealing base, thus can reliably prevent dust from entering into oil sealing installation cavity, thus improve the working life of oil sealing.
Other features and advantages of the utility model are described in detail in embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for specification, is used from explanation the utility model, but does not form restriction of the present utility model with embodiment one below.In the accompanying drawings:
Fig. 1 is the structural representation of a kind of typical axle main speed reducer in prior art.
Fig. 2 is the structural representation of a kind of embodiment of axle main speed reducer described in the utility model.
Fig. 3 is the A portion partial enlarged drawing of Fig. 2.
Fig. 4 is the structural representation of the another kind of embodiment of axle main speed reducer described in the utility model.
Fig. 5 is the B portion partial enlarged drawing of Fig. 4.
Description of reference numerals
1 dustproof encloser
10 oil sealing base 11 seal mounting hole
Port outside 12
20 flange connector part 21 lip parts
22 steps
30 oil sealing 40 dust-proof cover
41 joint 42 sealed departments
43 transition part 44 first circular arc part
45 second circular arc part
50 ring packing dividing plates
60 bevel housing 61 input ports
A abrasionproof gap b assemblage gap
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the utility model, is not limited to the utility model.
In the utility model, when not doing contrary explanation, the noun of locality such as " upper and lower, left and right " of use typically refers to reference to upper and lower, left and right shown in the drawings; " inside and outside " refers to profile inside and outside relative to each parts itself.
The utility model provides a kind of axle main speed reducer, this axle main speed reducer comprises the oil sealing base 10 and flange connector part 20 with seal mounting hole 11, oil sealing base 10 is arranged on input port 61 place of bevel housing 60, a part for the lip part 21 of flange connector part 20 is inserted in the seal mounting hole 11 of oil sealing base 10, and between the inner peripheral surface of the outer circumferential face of lip part 21 and seal mounting hole 11, oil sealing 30 is installed, lip part 21 is also fixed with the dust-proof cover 40 of the outside port 12 for shutoff seal mounting hole 11, joint 41 suit of dust-proof cover 40 is fixed on the outer circumferential face of lip part 21, and one end of joint 41 is formed and extend at least partially in seal mounting hole 11 with the sealed department 42 of the outside port 12 of this seal mounting hole 11 of shutoff.Because dust-proof cover 40 is arranged on the inside of oil sealing base 10, thus dust-proof cover 40 can be avoided to be subject to the collision from foreign matter in the process of moving and to be out of shape, thus affect sealing effect.
In addition, because sealed department 42 is deep in seal mounting hole 11, gap existing between sealed department 42 and seal mounting hole 11 is the axial direction along seal mounting hole 11, therefore, even if when axle main speed reducer described in the utility model is installed in the rearmounted jackshaft of input end or drives propons, also reliably can prevent dust from entering into oil sealing 30, thus improve the working life of oil sealing 30.Further, the sealed department 42 due to dust-proof cover 40 extend in seal mounting hole 11, and therefore, the installing space for installing dust-proof cover 40 in axle main speed reducer described in the utility model is less.
As a kind of preferred implementation of the present utility model, as shown in Figure 3 and Figure 5, between joint 41 and lip part 21, be formed as transition fit, therefore, when any one in both is subject to active force, displacement to a certain degree can be produced between the two.Like this, when adjusting bearing pre-fastening in assembly process, even if flange connections 20 or oil sealing base 10 produce axial displacement, also can by the transition fit between joint 41 and flange connections 20, make dust-proof cover 40 outwards movement under the effect of seal diaphragm 50, thus prevent the contact of tension between dust-proof cover 40 and seal diaphragm 50.After completing pretightening force adjustment, dust-proof cover 40 is fixed on flange connections 20 by recycling Bond, welding etc.
Particularly, as shown in Figure 3 and Figure 5, lip part 21 is formed with step 22, the other end of joint 41 abuts on step 22, and is fixed by 502 fast binders such as grade.
On the basis of technique scheme, the outer circumferential face of sealed department 42 and the inner peripheral surface of oil sealing base 10 outside side ports 12 place are formed with abrasionproof gap a.Due to the existence of this abrasionproof gap a, therefore, it is possible to avoid the contact between sealed department and oil sealing base 10, thus guarantee axle main speed reducer maintainability.In addition, between the outer circumferential face of preferred sealed department 42 and the outside port 12 of seal mounting hole 11, there is good coaxality, thus be convenient to the abrasionproof gap a maintaining setting.Particularly, preferred abrasionproof gap a can be 0.05mm ~ 0.15mm, and more preferably, abrasionproof gap a is 0.08mm ~ 0.1mm.
As a kind of embodiment of the present utility model, as shown in Figures 2 and 3, sealed department 42 extends radially outward from one end of joint 41, and the outer surface of sealed department 42 is recessed in the end face outside of oil sealing base 10.Because dust-proof cover 40 can be formed as the dust-proof cover that section is L shape in the utility model, be thus convenient to manufacturing, and easily ensure the precision of processing dimension.And the outer surface due to sealed department 42 is recessed in the end face outside of oil sealing base 10, therefore, further reduce the requirement to installing space, the road surface stone impact that dust-proof cover 40 also can be avoided preferably to be splashed and deforming.
In addition, axle main speed reducer of the present utility model also can as shown in Figures 4 and 5, and dust-proof cover 40 is formed as ladder tubulose, and one end of joint 41 is connected to sealed department 42 by the transition part 43 extended radially outward.Preferably between transition part 43 and joint 41, be formed with the first circular arc part 44, transition part 43 and and sealed department 42 between be formed with the second circular arc part 45, thus avoid the surface of bending place, right angle to lip part 21 to cause damage etc.
On the basis of technique scheme, axle main speed reducer also includes ring packing dividing plate 50, forms interference fit and be arranged in oil sealing base 10 between the inner peripheral surface of this ring packing dividing plate 50 by the outer circumferential face of ring packing dividing plate 50 and oil sealing base 10 side ports 12 place outside.Owing to being provided with ring packing dividing plate 50 between dust-proof cover 40 and oil sealing base 10, thus can effectively avoid dust-proof cover 40 to contact with the direct of oil sealing 30, thus when preventing from relatively rotating, contact produce high temperature and affect the working life of oil sealing 30.As one preferred embodiment, assemblage gap b is formed with between the inner peripheral surface of ring packing dividing plate 50 and the outer circumferential face of lip part 21.
In addition, gap is formed with between preferred ring packing dividing plate 50 and dust-proof cover 40.Like this, the labyrinth seal structure formed by this gap, assemblage gap b and abrasionproof gap a can prevent dust etc. from entering into oil sealing installation cavity more effectively, thus can extend the working life of oil sealing 30 further.Particularly, described seal mounting hole 11 is formed as shoulder hole, and the diameter at this shoulder hole side ports 12 place is outside greater than the diameter being provided with oil sealing 30 part in seal mounting hole 11, thus forms the step surface supporting described ring packing dividing plate 50.Like this, this preferred constructive form more reliably can ensure the position of ring packing dividing plate 50, thus can guarantee when dust-proof cover is fixed on lip part can be formed with gap between ring packing dividing plate 50 and dust-proof cover 40.That is, when ring packing dividing plate 50 is installed in oil sealing base 10, instrument can be utilized to be pressed onto on step surface by ring packing dividing plate 50, simultaneously, as mentioned above, because dust-proof cover 40 has been fixed on step 22 by Bond etc. after installation is complete, thus reliably can guarantee that there is certain gap between the two.
The ring packing dividing plate 50 that ring packing dividing plate 50 can be made for tin bronze, powder metallurgy or other metallic material through surface abrasion resistance process.Preferably, ring packing dividing plate 50 is high density polyethylene (HDPE) seal diaphragm.Friction factor between this high density polyethylene (HDPE) seal diaphragm and the dust-proof cover 40 be made up of metallic material is extremely small, particularly, this friction factor can be less than or equal to 0.01, further, high density polyethylene (HDPE) seal diaphragm cost only have 1/20th of tin bronze dividing plate, 1/10th of powder metallurgy dividing plate and other metallic material dividing plates.
The utility model also provides a kind of vehicle, comprises vehicle bridge, and this vehicle bridge is provided with according to the axle main speed reducer in technique scheme described in any one.Even if be arranged on the rearmounted jackshaft of input end due to axle main speed reducer of the present utility model or drive on propons, the opening in its gap also can not towards the direction of vehicle advance.Therefore adopt the vehicle having axle main speed reducer of the present utility model, because dust-proof cover in axle main speed reducer 40 reliably can ensure the working life of oil sealing 30, and there is relatively low maintenance rate.
Below preferred implementation of the present utility model is described by reference to the accompanying drawings in detail; but; the utility model is not limited to the detail in above-mentioned mode of execution; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition, each concrete technical characteristics described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the utility model illustrates no longer separately to various possible compound mode.
In addition, also can carry out combination in any between various different mode of execution of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (12)
1. an axle main speed reducer, this axle main speed reducer comprises the oil sealing base (10) and flange connector part (20) with seal mounting hole (11), described oil sealing base (10) is arranged on input port (61) place of bevel housing (60), a part for the lip part (21) of described flange connector part (20) is inserted in the described seal mounting hole (11) of described oil sealing base (10), and between the inner peripheral surface of the outer circumferential face of described lip part (21) and described seal mounting hole (11), oil sealing (30) is installed, described lip part (21) is also fixed with the dust-proof cover (40) of the outside port (12) for seal mounting hole described in shutoff (11), it is characterized in that, joint (41) suit of described dust-proof cover (40) is fixed on the outer circumferential face of described lip part (21), and one end of described joint (41) is formed and extend at least partially in described seal mounting hole (11) with the sealed department (42) of this seal mounting hole of shutoff (11) outside port (12).
2. axle main speed reducer according to claim 1, is characterized in that, is formed as transition fit between described joint (41) and described lip part (21).
3. axle main speed reducer according to claim 1, it is characterized in that, described lip part (21) is formed as stepped shaft to have step (22), the other end of described joint (41) abuts on this step (22), and is fixed by Bond.
4. axle main speed reducer according to claim 1, it is characterized in that, the outer circumferential face of described sealed department (42) and the inner peripheral surface of described oil sealing base (10) are formed with abrasionproof gap (a) at port (12) place, described outside.
5. axle main speed reducer according to claim 4, is characterized in that, described abrasionproof gap (a) is 0.05mm ~ 0.15mm.
6. axle main speed reducer according to claim 1, it is characterized in that, described sealed department (42) extends radially outward from described one end of described joint (41), and the outer surface of sealing portion (42) is recessed in the end face outside of described oil sealing base (10).
7. axle main speed reducer according to claim 1, it is characterized in that, described dust-proof cover (40) is formed as ladder tubulose, further, described one end of described joint (41) is connected to described sealed department (42) by the transition part (43) extended radially outward.
8. according to the axle main speed reducer in claim 1-7 described in any one, it is characterized in that, described axle main speed reducer also includes ring packing dividing plate (50), and this ring packing dividing plate (50) is formed interference fit by the outer circumferential face of described ring packing dividing plate (50) and described oil sealing base (10) and is arranged in described oil sealing base (10) between the inner peripheral surface at port (12) place, described outside.
9. axle main speed reducer according to claim 8, it is characterized in that, described seal mounting hole (11) is formed as shoulder hole, this shoulder hole is greater than the diameter being provided with described oil sealing (30) part in described seal mounting hole (11) at the diameter at port (12) place, described outside, thus forms the step surface supporting described ring packing dividing plate (50).
10. axle main speed reducer according to claim 8, is characterized in that, is formed with assemblage gap (b) between the inner peripheral surface of described ring packing dividing plate (50) and the outer circumferential face of described lip part (21).
11. axle main speed reducers according to claim 8, is characterized in that, described ring packing dividing plate (50) is high density polyethylene (HDPE) seal diaphragm.
12. 1 kinds of vehicles, comprise vehicle bridge, it is characterized in that, described vehicle bridge is provided with according to the axle main speed reducer in claim 1-11 described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420734974.8U CN204267690U (en) | 2014-11-28 | 2014-11-28 | Axle main speed reducer and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420734974.8U CN204267690U (en) | 2014-11-28 | 2014-11-28 | Axle main speed reducer and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267690U true CN204267690U (en) | 2015-04-15 |
Family
ID=52802561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420734974.8U Active CN204267690U (en) | 2014-11-28 | 2014-11-28 | Axle main speed reducer and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204267690U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105370A (en) * | 2018-01-10 | 2018-06-01 | 东风商用车有限公司 | A kind of output shaft of gear-box end seal structure |
-
2014
- 2014-11-28 CN CN201420734974.8U patent/CN204267690U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105370A (en) * | 2018-01-10 | 2018-06-01 | 东风商用车有限公司 | A kind of output shaft of gear-box end seal structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204061568U (en) | Seal arrangement | |
| CN205226094U (en) | Car take -up pulley double column angular contact ball bearing | |
| CN201627926U (en) | Heavy truck bridge hub oil seal | |
| CN204267690U (en) | Axle main speed reducer and vehicle | |
| CN204239455U (en) | A kind of doubling sealed bearing | |
| CN204985365U (en) | Automobile wheel hub bearing assembly | |
| CN205371641U (en) | Rotary seal structure | |
| CN103423538A (en) | Hydraulic swivel joint with high leak tightness | |
| CN203730718U (en) | Combined seal bearing end cover for speed reducer | |
| CN204852028U (en) | Car pressure bearing combination formula sealing device | |
| CN207297647U (en) | A kind of self-lubricating bearing formula oil sealing | |
| CN202203403U (en) | Oil seal for wheel edge of engineering machinery | |
| CN204109676U (en) | The integrated oil enveloping structure of drive axle axis head nut | |
| CN208651562U (en) | Gearbox differential mechanism axle-shaft oil seal | |
| CN201568576U (en) | Dust-proof structure of flange oil seal of drive bridge | |
| CN202520953U (en) | Wheel cylinder double-lip packing cup of hydraulic brake | |
| CN203395151U (en) | Inner oil-resistant plate-type oil seal with dustproof cover and lip | |
| CN103075436A (en) | Universal joint of long-life wear-resisting stamping bearing structure | |
| CN202203406U (en) | Oil seal for wheel edge of engineering machinery | |
| CN201651324U (en) | Seal ring | |
| CN101586597A (en) | Ball bearing | |
| CN102619987A (en) | Bearing sealing device | |
| CN203411776U (en) | Sealing structure of swinging shaft of sewing machine | |
| CN104265772A (en) | Waterproof bearing applied to transmission shaft | |
| CN204452648U (en) | A kind of thrust wheel device of caterpillar band harvester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |