CN206918094U - A kind of gear-box and bearing sealing device - Google Patents
A kind of gear-box and bearing sealing device Download PDFInfo
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- CN206918094U CN206918094U CN201720904036.1U CN201720904036U CN206918094U CN 206918094 U CN206918094 U CN 206918094U CN 201720904036 U CN201720904036 U CN 201720904036U CN 206918094 U CN206918094 U CN 206918094U
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- ring
- bearing
- labyrinth
- oil scraper
- gear
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Abstract
This application discloses a kind of gear-box and bearing sealing device, wherein, bearing sealing device includes bearing block, labyrinth ring and labyrinth end covers, and labyrinth end covers are connected to bearing block, labyrinth ring is provided with labyrinth disc, and labyrinth seal structure is formed between labyrinth disc and labyrinth end covers；The first oil scraper ring is provided with labyrinth ring outer peripheral face；The second oil scraper ring is provided with bearing block inner peripheral surface, the second oil scraper ring inner peripheral surface and the first oil scraper ring outer peripheral face mutually approach cooperation；Formed between labyrinth disc outer peripheral face and bearing block inner peripheral surface and allow bit space, be axially displaceable into for the second oil scraper ring along bearing block, and the distance of the second oil scraper ring axial movement be more than sealing ring where the distance between sagittal plane to gear housing outer face.Allowed because the second oil scraper ring can be axially displaceable into bit space, labyrinth disc does not limit moving axially outward for bearing block, and sealing ring can be made to expose the outside of gear housing, facilitate gear-box to be changed in small space to sealing ring.
Description
Technical field
Bearing seal technical field is the utility model is related to, more particularly to a kind of bearing sealing device.Further relate to a kind of answer
With the gear-box of the bearing sealing device.
Background technology
Gear-box is the important transmission device of vehicle, and gear-box is arranged on axletree, and one end of gear-box is close to wheel, separately
One end connects motor by shaft coupling.Gear-box is connected by bearing with axletree, and bearing oil passes through bearing seal machine
Structure is sealed, by taking rail traffic gear box as an example, because the running speed of rail traffic gear box is high, running environment operating mode is disliked
Bad, bearing sealing device all uses contactless labyrinth seal, to prevent the high-speed resistance of bearing sealing device.
As depicted in figs. 1 and 2, bearing 04 is fixed on gear housing 01 to existing bearing sealing device by bearing block 03
On, sealing ring 02, the outside setting of bearing 04 and bearing block 03 are provided between the mounting surface of bearing block 03 and gear housing 01
There are labyrinth ring 06 and labyrinth end covers 05, labyrinth ring 06 rotates with axletree, the static outer end for being fixed on bearing block 03 of labyrinth end covers 05
Face, the inner peripheral surface of bearing block 03 are provided with bearing block oil scraper ring 031, labyrinth disc are provided with the outer peripheral face of labyrinth ring 06
061, and bearing block oil scraper ring 031, labyrinth disc 061 and labyrinth end covers are sequentially disposed in from the inside to the outside along the axial direction of bearing 04
05, wherein, the end of bearing block oil scraper ring 031 extends radially inwardly the outer peripheral face close to labyrinth ring 06, the footpath of labyrinth disc 061
To stretching out, the outer peripheral face of labyrinth disc 061 is provided with multiple annular grooves, and the outer face of labyrinth disc 061 is set
There is back-shaped labyrinth structure；The inner face of labyrinth end covers 05 is provided with and non-contact turn of the back-shaped labyrinth structure of labyrinth disc 061
The second back-shaped sealing structure that dynamic sealing coordinates.In the bearing sealing device, bearing block oil scraper ring 031 forms the of bearing 04
Seal together, the back-shaped sealing structure of labyrinth disc 061 and the second of labyrinth end covers 05 the back-shaped sealing structure mutual cooperation structure
Second into bearing 04 seals, and so as to ensure that the sealing of bearing 04, prevents the debris such as external dust, moisture from entering gear-box
Body, while it is also prevented from the leakage of gear box lubricating oil.
Although the bearing sealing device can realize preferable sealing, occur very in the actual maintenance of gear-box
It is more inconvenient.After the long-time use of sealing ring 02 between the mounting surface of bearing block 03 and gear housing 01, it may appear that aging phenomenon,
Sealing effectiveness is deteriorated, it is necessary to be changed to sealing ring 02, and this is just needed first by labyrinth end covers 05 and labyrinth ring 06 from axletree
Unload, then bearing block 03 is axially removed into a segment distance from gear housing 01, the sealing ring 02 on bearing block 03 is exposed into tooth
Take turns outside casing 01, then changed.But for the arrangement as rail traffic gear box, if not dismantling car
Wheel,, can not be by labyrinth ring 06 from axletree in the case that labyrinth ring 06 is enclosed on axletree due to the insufficient space around gear-box
Heat is moved back and hot charging, relies solely on the axial gap between bearing block 03 and labyrinth ring 06 and carrys out moving shaft holder 03, can be because labyrinth
Disc 061 axially limits the movement of bearing block oil scraper ring 031 and bearing block 03 can not be made to obtain enough mobile spaces, causes
Rubber seal 02 exposed can not be arrived outside gear housing 01 on bearing block 03, also can not just carry out the replacing of sealing ring 02.Therefore,
Existing bearing sealing device only first disassembles wheel, labyrinth ring 06 of backing off, could change sealing ring.So that gear-box
The relatively complicated complexity of maintenance, it is inconvenient to safeguard, while often removing vehicle tyres can also influence the safe operating life of wheel.
In summary, how in the case where gear-box exterior space is narrow and small, solve the problems, such as that gear-box maintenance is inconvenient,
Become those skilled in the art's urgent problem to be solved.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of bearing sealing device, with gear-box exterior space
It is convenient that gear-box is safeguarded in the case of narrow and small.
Another purpose of the present utility model is to provide a kind of gear-box of the application bearing sealing device, with gear
It is convenient that gear-box is safeguarded in the case that case exterior space is narrow and small.
To reach above-mentioned purpose, the utility model provides following technical scheme：
A kind of bearing sealing device, including bearing block, labyrinth ring and labyrinth end covers, the labyrinth end covers are connected to the axle
The outer face of bearing, labyrinth disc, the outer face of the labyrinth disc and institute are provided with the outer peripheral face of the labyrinth ring
State and the labyrinth seal structure that non-contact rotation coordinates is formed between the inner face of labyrinth end covers；
The first oil scraper ring is additionally provided with the outer peripheral face of the labyrinth ring, first oil scraper ring is located at the labyrinth and gets rid of oil
Between ring and bearing；
The second oil scraper ring is additionally provided with the inner peripheral surface of the bearing block, the inner peripheral surface of second oil scraper ring is used for and institute
The outer peripheral face for stating the first oil scraper ring mutually approaches cooperation, forms complete bearing oil scraper ring；
Formed between the outer peripheral face of the labyrinth disc and the inner peripheral surface of the bearing block and allow bit space, for described the
Two oil scraper rings are axially displaceable into along the bearing block, and the distance of second oil scraper ring axial movement is more than sealing ring institute
Outer face of the sagittal plane to gear housing between distance.
Preferably, in above-mentioned bearing sealing device, the outer peripheral face of the labyrinth disc is close to the labyrinth end covers
What the position of inner face was provided with ring-type gets rid of oily side.
Preferably, in above-mentioned bearing sealing device, it is described get rid of oily side be used for axially limitation second oil scraper ring to
Move outer end.
Preferably, in above-mentioned bearing sealing device, in the bearing block radially, second oil scraper ring it is interior
Side face is located between inner ring and the outer ring of bearing.
Preferably, in above-mentioned bearing sealing device, the inner peripheral surface of second oil scraper ring sets oriented bearing side
The gear oil flanging of bending.
Preferably, in above-mentioned bearing sealing device, the labyrinth seal structure includes：
It is arranged at one or more first annular seal grooves of the outer face of the labyrinth disc；
Be arranged at the inner face of the labyrinth end covers the one or more and first annular seal groove mutually rotate it is embedding
Close the second annular seal groove that sealing coordinates.
The utility model additionally provides a kind of gear-box, including gear housing, bearing and bearing sealing device, the bearing
Outer ring be connected to by the bearing block of the bearing sealing device on the gear housing, the periphery mounting surface of the bearing block
On be provided with sealing ring mounting groove, be embedded with sealing ring in the sealing ring mounting groove, the bearing sealing device is as more than
Bearing sealing device described in any one.
Preferably, in above-mentioned gear-box, the periphery of the bearing block is additionally provided with the outer end with the gear housing
The positioning boss of face axially position.
Preferably, in above-mentioned gear-box, the outer face of the inner face of the positioning boss and the gear housing it
Between be additionally provided with bearing clearance adjust pad.
Preferably, in above-mentioned gear-box, the sealing ring is O-ring seals.
Compared with prior art, the beneficial effects of the utility model are：
In bearing sealing device provided by the utility model, the first oil scraper ring and labyrinth are set on the outer peripheral face of labyrinth ring
Disc, the first oil scraper ring are provided with the second oil scraper ring between labyrinth disc and bearing on the inner peripheral surface of bearing block, the
The inner peripheral surface of two oil scraper rings is used to mutually approach cooperation, the first oil scraper ring and the second oil scraper ring group with the outer peripheral face of the first oil scraper ring
Into complete bearing oil scraper ring；Formed between the outer peripheral face of labyrinth disc and the inner peripheral surface of bearing block and allow bit space, Neng Gourang
Second oil scraper ring is axially displaceable into wherein along bearing block, and the distance of the second oil scraper ring axial movement is more than where sealing ring
The distance between sagittal plane to the outer face of gear housing.Then carry out sealing ring replacing when, it is only necessary to vertically to
Outer moving shaft holder and labyrinth end covers, labyrinth disc and axle can be entered during being moved axially due to the second oil scraper ring
What is formed between bearing allows bit space, so that labyrinth disc no longer limits moving axially outward for bearing block, and bearing block
Mobile distance can make sealing ring expose the outside of gear housing, and conveniently sealing ring is changed, without dismounting
Wheel outside gear-box, i.e., in the case where gear-box exterior space is narrow and small, the maintenance of gear-box is facilitated, is avoided
Wheel frequently dismounts, it is ensured that the safe operating life of wheel.And the axle being made up of the first oil scraper ring and the second oil scraper ring
Oil scraper ring is held as first of bearing sealing, the labyrinth seal structure formed between labyrinth disc and labyrinth end covers is used as the
Two sealings, ensure that the sealing of bearing sealing device.
Gear-box provided by the utility model employs the bearing sealing device in the application, therefore, it is possible in gear-box
It is convenient that sealing ring between the bearing block and gear housing of gear-box is changed in the case that exterior space is narrow and small, it is convenient
The maintenance of gear-box.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to the accompanying drawing of offer.
Fig. 1 is a kind of structural representation of bearing sealing device of the prior art；
Fig. 2 is that a kind of bearing block of bearing sealing device of the prior art moves schematic diagram；
Fig. 3 is a kind of partial structural diagram for bearing sealing device that the utility model embodiment provides；
Fig. 4 is that a kind of bearing block for bearing sealing device that the utility model embodiment provides moves schematic diagram；
Fig. 5 is a kind of structural representation for gear-box that the utility model embodiment provides.
Wherein, 01 it is gear housing, 02 be sealing ring, 03 be bearing block, 031 be bearing block oil scraper ring, 04 is bearing, 05
It is labyrinth ring for labyrinth end covers, 06,061 is labyrinth disc；
1 it is gear housing, 2 be sealing ring, 3 be bearing block, 31 be the second oil scraper ring, 32 be positioning boss, 4 is bearing, 5
It is the second annular seal groove for labyrinth end covers, 51,6 be labyrinth ring, 61 is labyrinth disc, 611 to get rid of oily side, 612 be first
Annular seal groove, 62 be the first oil scraper ring, 7 be bearing clearance adjust pad, 8 to allow bit space.
Embodiment
Core of the present utility model there is provided a kind of bearing sealing device, can be in the narrow and small feelings of gear-box exterior space
It is convenient that gear-box is safeguarded under condition.
The utility model additionally provides a kind of gear-box of the application bearing sealing device, can be in gear-box exterior space
It is convenient that gear-box is safeguarded in the case of narrow and small.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Refer to Fig. 3 and Fig. 4, the utility model embodiment provides a kind of bearing sealing device, it include bearing block 3,
Labyrinth ring 6 and labyrinth end covers 5.Wherein, the outer ring of bearing 4 is installed on gear housing 1 by bearing block 3, bearing block 3 and gear-box
Sealing ring 2 is provided between the mounting surface of body 1；Labyrinth end covers 5 are connected to the outer face of bearing block 3, on the outer peripheral face of labyrinth ring 6
Labyrinth disc 61 is provided with, non-contact rotation is formed between the outer face of labyrinth disc 61 and the inner face of labyrinth end covers 5
The labyrinth seal structure of cooperation；
Be additionally provided with the first oil scraper ring 62 on the outer peripheral face of labyrinth ring 6, the first oil scraper ring 62 be located at labyrinth disc 61 with
Between bearing 4；
The second oil scraper ring 31 is additionally provided with the inner peripheral surface of bearing block 3, the inner peripheral surface of the second oil scraper ring 31 is used for and first
The outer peripheral face of oil scraper ring 62 mutually approaches cooperation, and the first oil scraper ring 62 and the second oil scraper ring 31 can move axially relatively,
First oil scraper ring 61 and the second oil scraper ring 32 form complete bearing oil scraper ring, first of sealing as bearing 4；
Formed between the outer peripheral face of labyrinth disc 61 and the inner peripheral surface of bearing block 3 and allow bit space 8, i.e. labyrinth disc 61
Outer peripheral face and bearing block 3 inner peripheral surface between certain spacing be present, this allows bit space 8 to be used for the second oil scraper ring 31 along bearing
Seat 3 is axially displaceable into wherein, i.e., labyrinth disc 61 will not stop that the second oil scraper ring 31 moves axially, the second oil scraper ring 31
Axial movement distance be more than the distance between sagittal plane to outer face of gear housing 1 where sealing ring 2, second gear oil
The axial movement distance of ring 31 is equal to the outer face for allowing the axial distance of bit space 8 to add the second oil scraper ring 31 under confined state
The distance between inner face to labyrinth disc 61 sum, that is to say, that the oil scraper ring 31 of bearing block 3 and second is relative together to be confused
Palace ring 6 moves axially, and when the second oil scraper ring 31, which enters, to be allowed in bit space, sealing ring 2 can expose from gear housing 1.
The operation principle and the course of work of the bearing sealing device be：Bearing sealing device in the assembled condition, such as Fig. 3 institutes
Show, the inner peripheral surface of the outer peripheral face of the first oil scraper ring 62 and the second oil scraper ring 31 approaches, and forms a complete bearing oil scraper ring, fan
The labyrinth seal structure formed between the outer face of palace disc 61 and the inner face of labyrinth end covers 5 is in non-contact rotation sealing
Mated condition, sealing ring 2 are located between bearing block 3 and the mounting surface of gear housing 1.When needing to change sealing ring 2, vertically
To the outer end moving shaft holder 3 of gear housing 1, as shown in figure 4, because the second oil scraper ring 31 is arranged on bearing block 3, labyrinth end
Lid 5 is connected to the outer face of bearing block 3, therefore, the second oil scraper ring 31 and labyrinth end covers 5 with bearing block 3 axially outward
End movement, now, the position of labyrinth ring 6 is fixed, and the second oil scraper ring 31 gradually staggers with the first oil scraper ring 62, due to labyrinth
Disc 61 is without limitation on the axial movement of the second oil scraper ring 31, and therefore, the second oil scraper ring 31 can enter labyrinth disc 61
What is formed between bearing block 3 allows in bit space 8, and after moving into place, the sealing ring 2 being arranged on bearing block 3 exposes gear-box
The outside of body 1, sealing ring 2 can be changed.
It can be seen that by the way that bearing oil scraper ring is divided into the first oil scraper ring 62 and the two parts of the second oil scraper ring 31, and labyrinth is got rid of
Formed between oil ring 61 and bearing block 3 and allow bit space 8, so as to release axial limiting of the labyrinth ring 6 to bearing block 3, not
In the case of the axial length for increasing bearing sealing device and gear-box, bearing block 3 is increased in bearing sealing device itself
Axial movement distance, can be convenient that sealing ring 2 is changed under the conditions of narrow space outside gear-box.For tooth
Roller box, can not removing vehicle tyres close to the replacing of the sealing ring 2 of the side of wheel, it is ensured that the safe operating life of wheel.Together
When, bearing oil scraper ring that the bearing sealing device is made up of the first oil scraper ring 62 and the second oil scraper ring 31 be used as first it is close
Envelope, second is used as by labyrinth seal structure and sealed, ensure that the excellent sealing of bearing 4.
Further, in the present embodiment, the outer peripheral face of labyrinth disc 61 is close to the position of the inner face of labyrinth end covers 5
Be provided with ring-type gets rid of oily side 611, and multiple annular groove phases are set with the outer peripheral face of the prior art in labyrinth disc 061
Than the oily side 611 of getting rid of of the ring-type in the present embodiment is unilateral annular groove, i.e., can realize and get rid of oily function, while will not be to second
The axial movement progress of oil scraper ring 31 is spacing, increases the axial movement distance of bearing block 3.It is of course also possible to it is not provided with getting rid of oil
Side 611, then labyrinth disc 61 there are sealed bearings 4.
Further, in the present embodiment, the position for getting rid of oily side 611 sets and the axial direction of the second oil scraper ring 31 can be moved
Dynamic to carry out finally spacing, after the second oil scraper ring 31, which enters, allows bit space 8, the second oil scraper ring 31 contacts limit with getting rid of oily side 611
Position, the second oil scraper ring 31 is prevented to continue to move outward.Certainly, getting rid of the position on oily side 611, set can also will not be to second gear
The axial movement progress of oil ring 31 is spacing, by the displacement of manual control bearing block 3, gets rid of the oily oil scraper ring of side 611 and second
Whether 31 can contact the spacing axial dimension for depending on the second oil scraper ring 31 and labyrinth disc 61.
As shown in Figure 3 and Figure 4, it is preferable that in the present embodiment, in bearing block 3 radially, the second oil scraper ring 31 it is interior
Side face is located between inner ring and the outer ring of bearing 4.I.e. along bearing block 3 radial direction from outside to inside, the inner peripheral surface of the second oil scraper ring 31
The radial position at place is higher by the radial position where the outer ring of bearing 4, and it is to determine a suitable lubrication so to set
Oily level height, guarantee is supplied to the lubricating oil of bearing 4 will not be excessive or very few, to improve the service life of bearing 4.
As optimization, in the present embodiment, the inner peripheral surface of the second oil scraper ring 31 sets the gear oil of the oriented side of bearing 4 bending
Flanging, a gear oil groove is formed between the inner face of oily flanging and the second oil scraper ring 31 is kept off, can house and preserve and be certain
Lubricating oil, so as to further improve the service life of bearing 4.Certainly, the inner face of the second oil scraper ring 31 can also be planar junction
Structure, the first oil scraper ring 62 can use the structure differed with the identical structure of the second oil scraper ring 31, or both use, as long as
Both can be made mutually to approach cooperation, form complete bearing oil scraper ring.
As shown in Figure 3 and Figure 4, a kind of specific labyrinth seal structure is present embodiments provided, it is specially：Get rid of oil in labyrinth
One or more first annular seal grooves 612 are provided with the outer face of ring 61；One is provided with the inner face of labyrinth end covers 5
Or multiple second annular seal grooves 51, the second annular seal groove 51 are matched somebody with somebody with the mutually chimeric sealing of rotation of first annular seal groove 612
Close, the first annular annular seal groove 51 of seal groove 612 and second is entrenched togather and do not contacted, can rotate against, and is formed bent
The labyrinth structure returned.The labyrinth seal structure good airproof performance.Certainly, labyrinth seal structure can also be other structures, as long as energy
Enough realize that non-contact rotation seals, it is not limited to the structure type cited by the present embodiment.
Based on the bearing sealing device described by any of the above embodiment, the utility model embodiment additionally provides a kind of tooth
Roller box, as shown in Figure 3-Figure 5, Fig. 3 and the partial structural diagram that Fig. 4 is the a-quadrant in Fig. 5, gear-box include gear housing
1st, bearing 4 and bearing sealing device.Wherein, bearing sealing device is the bearing seal machine as described by any of the above embodiment
Structure, the both ends of gear-box are provided with bearing 4, and the outer ring of each bearing 4 is connected to by the bearing block 3 of bearing sealing device
On gear housing 1, sealing ring mounting groove is provided with the periphery mounting surface of bearing block 3, sealing is embedded with the mounting groove of sealing ring 2
Circle.
When needing that gear-box is safeguarded, when changing sealing ring 2, it is only necessary to by bearing block 3 vertically to gear-box
A segment distance is moved in outer end, as a result of the bearing sealing device in the application, therefore, is not changing the installation of sealing ring 2
In the case of the axial dimension of position and increase bearing sealing device, bearing block 3 can be increased in bearing sealing device itself
Displacement it is convenient that sealing ring 2 is changed so that sealing ring 2 exposes gear housing 1.The gear-box can be outside
In the case of portion's narrow space, easily sealing ring 2 can be changed, for the side sealing ring 2 close to wheel more
Change, can not removing vehicle tyres, avoid wheel and frequently dismount, it is ensured that the safe operating life of wheel.Especially for track
For transport gear case, the rail traffic gear box of outside narrow space can easily be safeguarded.
As shown in Figure 3 and Figure 4, further, in the present embodiment, the periphery of bearing block 3 is additionally provided with and gear housing 1
Outer face axially position positioning boss 32, the axial location of positioning bearing seat 3 and bearing housing 1 during for assembling, be easy to
Assembling positioning.
Further, in the present embodiment, also set between the outer face of the inner face of positioning boss 32 and gear housing 1
Bearing clearance adjust pad 7 is equipped with, the rigging position of the outer ring of bearing 4 and inner ring can be adjusted by bearing clearance adjust pad 7,
The convenient installation accuracy to bearing 4 is adjusted.It is of course also possible to bearing clearance adjust pad 7 is not provided with, directly by convex
The inner face of platform 32 contacts installation with the outer face fitting of gear housing 1, as long as being able to ensure that the installation accuracy of bearing 4.
In the present embodiment, sealing ring 2 is O-ring seals, and the relative motion suitable for static seal or low speed seals, sealing
Effect is good.Certainly, sealing ring 2 can be with other types of sealing ring, such as rectangular seal.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (10)
1. a kind of bearing sealing device, including bearing block (3), labyrinth ring (6) and labyrinth end covers (5), the labyrinth end covers (5) are even
The outer face of the bearing block (3) is connected to, labyrinth disc (61), the fan are provided with the outer peripheral face of the labyrinth ring (6)
The labyrinth seal that non-contact rotation coordinates is formed between the outer face of palace disc (61) and the inner face of the labyrinth end covers (5)
Structure；
Characterized in that, the first oil scraper ring (62), first oil scraper ring are additionally provided with the outer peripheral face of the labyrinth ring (6)
(62) between the labyrinth disc (61) and bearing (4)；
The second oil scraper ring (31), the inner peripheral surface of second oil scraper ring (31) are additionally provided with the inner peripheral surface of the bearing block (3)
For mutually approaching cooperation with the outer peripheral face of first oil scraper ring (62), complete bearing oil scraper ring is formed；
Formed between the outer peripheral face of the labyrinth disc (61) and the inner peripheral surface of the bearing block (3) and allow bit space (8), be used for
Second oil scraper ring (31) being axially displaceable into along the bearing block (3), and second oil scraper ring (31) moves axially
Distance be more than the distance between sagittal plane to outer face of gear housing (1) where sealing ring (2).
2. bearing sealing device according to claim 1, it is characterised in that the outer peripheral face of the labyrinth disc (61) leans on
What the position of nearly labyrinth end covers (5) inner face was provided with ring-type gets rid of oily side (611).
3. bearing sealing device according to claim 2, it is characterised in that it is described get rid of oily side (611) be used for axially limitation
Second oil scraper ring (31) is moved outward.
4. according to the bearing sealing device described in claim any one of 1-3, it is characterised in that in the footpath of the bearing block (3)
Upwards, the inner peripheral surface of second oil scraper ring (31) is located between inner ring and the outer ring of the bearing (4).
5. according to the bearing sealing device described in claim any one of 1-3, it is characterised in that second oil scraper ring (31)
Inner peripheral surface sets the gear oil flanging of oriented bearing (4) the side bending.
6. according to the bearing sealing device described in claim any one of 1-3, it is characterised in that the labyrinth seal structure bag
Include：
It is arranged at one or more first annular seal grooves (612) of the outer face of the labyrinth disc (61)；
The one or more and first annular seal groove (612) for being arranged at the inner face of the labyrinth end covers (5) mutually turns
The second annular seal groove (51) that dynamic chimeric sealing coordinates.
7. a kind of gear-box, including gear housing (1), bearing (4) and bearing sealing device, the outer ring of the bearing (4) pass through
The bearing block (3) of the bearing sealing device is connected on the gear housing (1), the periphery mounting surface of the bearing block (3)
On be provided with sealing ring mounting groove, be embedded with sealing ring (2) in the sealing ring mounting groove, it is characterised in that the bearing is close
Sealing mechanism is the bearing sealing device as described in claim any one of 1-6.
8. gear-box according to claim 7, it is characterised in that the periphery of the bearing block (3) be additionally provided with it is described
The positioning boss (32) of the outer face axially position of gear housing (1).
9. gear-box according to claim 8, it is characterised in that the inner face of the positioning boss (32) and the gear
Bearing clearance adjust pad (7) is additionally provided between the outer face of casing (1).
10. gear-box according to claim 7, it is characterised in that the sealing ring (2) is O-ring seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720904036.1U CN206918094U (en) | 2017-07-24 | 2017-07-24 | A kind of gear-box and bearing sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720904036.1U CN206918094U (en) | 2017-07-24 | 2017-07-24 | A kind of gear-box and bearing sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206918094U true CN206918094U (en) | 2018-01-23 |
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ID=61348039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720904036.1U Active CN206918094U (en) | 2017-07-24 | 2017-07-24 | A kind of gear-box and bearing sealing device |
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| Country | Link |
|---|---|
| CN (1) | CN206918094U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165945A (en) * | 2017-07-24 | 2017-09-15 | 江苏新瑞齿轮系统有限公司 | A kind of gear-box and bearing sealing device |
-
2017
- 2017-07-24 CN CN201720904036.1U patent/CN206918094U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165945A (en) * | 2017-07-24 | 2017-09-15 | 江苏新瑞齿轮系统有限公司 | A kind of gear-box and bearing sealing device |
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