CN209688063U - Reducer shaft end non-contacting sealing structure - Google Patents
Reducer shaft end non-contacting sealing structure Download PDFInfo
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- CN209688063U CN209688063U CN201920408628.3U CN201920408628U CN209688063U CN 209688063 U CN209688063 U CN 209688063U CN 201920408628 U CN201920408628 U CN 201920408628U CN 209688063 U CN209688063 U CN 209688063U
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- drainback passage
- oil
- back chamber
- main
- lower cover
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Abstract
The utility model discloses a kind of reducer shaft end non-contacting sealing structures, including cabinet and axis, axis is installed on cabinet by bearing, disc is provided on the axis of bearing outer end, it further include upper end cover and lower cover, upper end cover and lower cover surround disc and surround the second oil back chamber, and upper end cover and lower cover are detachably connected with cabinet, the first oil back chamber is provided between upper end cover and the inner face and bearing of lower cover, lower cover is provided with third oil back chamber far from one end of bearing；The bottom of lower cover is provided with the first drainback passage of connection third oil back chamber and the second oil back chamber, main drainback passage is provided with below bearing, first oil back chamber is connected by the second drainback passage with main drainback passage, and the second oil back chamber is connected by third drainback passage with main drainback passage.The lubricating oil in each oil back chamber can be discharged in the utility model in time, and the mist of oil generated can be also back in cabinet, avoid waste and problem of environmental pollution because of caused by oil leakage.
Description
Technical field
The utility model relates to field of sealing technology, and in particular to a kind of reducer shaft end non-contacting sealing structure.
Background technique
Gear, the bearing of retarder all need to lubricate.When load is larger, revolving speed is higher, followed usually using thin oil
The mode of ring lubrication, by lubricating oil sustainable supply to gear, bearing.Reducer shaft end frequently with non-contact mechanical seal, with
The drawbacks of avoiding the existing abrasion of rubber seal itself and aging.
There are many reason of traditional reducer shaft end generation oil leak, remove outside product quality problem, most important original
Because there are two: first is that when end cap limited space, lubricating oil in end cap due to without dedicated drainback passage, no pressure, viscosity it is high,
After the lubricating oil that the factors such as temperature is low can not be discharged in time, and can not be discharged in time touches disc, it will splash again,
To cause the failure of sealing；Second is that mist of oil in retarder can form oil droplet in end cap inner wall, and part oil droplet can from axis and
Slot leakage between end cap comes out.
The leakage of gear reducer lube not only causes the waste of lubricating oil, more causes the pollution of environment.Reply lubrication
The leakage of oil, there are two types of currently used modes: first is that the ground of timing cleaning daily, keeps clean environment；Second is that in retarder
Surrounding digs groove, is handled again after oil leak is deflected from retarder.Two ways can not solve the problems, such as the waste of lubricating oil,
Also pollution on the environment can not be solved the problems, such as.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of reducer shaft end non-contacting sealing structures, with solution
Certainly lubricating oil can not be discharged in time and mist of oil caused by oil leakage, to avoid the waste because of caused by oil leakage
And problem of environmental pollution.
The utility model technical scheme applied to solve the technical problem is: reducer shaft end non-contacting sealing structure,
Including cabinet and axis, the side wall of the cabinet is provided with mounting hole, and the axis is installed on mounting hole by bearing, outside the bearing
It is provided with disc on the axis at end,
It further include upper end cover and lower cover, the upper end cover and lower cover are detachably connected, and upper end cover and lower cover surround
Disc simultaneously surrounds the second oil back chamber, and upper end cover and lower cover are detachably connected with cabinet, and upper end cover and lower cover is interior
The first oil back chamber is provided between end face and bearing, the lower cover is provided with third oil back chamber far from one end of bearing；It is described
Main drainback passage is provided in cabinet below bearing, the bottom of the lower cover is provided with connection third oil back chamber and main oil return
First drainback passage in channel, first oil back chamber are connected by the second drainback passage with main drainback passage, and described second
Oil back chamber is connected by third drainback passage with main drainback passage.
Further, first drainback passage and third drainback passage are first time that lower cover intracavity bottom is arranged in
Chute.
Further, first backflash and main drainback passage are obliquely installed, and are lower than close to one end of box house
One end far from box house.
Further, multiple partitions are provided in second oil back chamber, the second oil back chamber is divided into more by the partition
It is a to divide oil return cavity, each divide oil return cavity to be connected with the first backflash.
Further, second drainback passage is the second backflash that lower cover inner end end face is arranged in, described second
The length direction of backflash and axis it is radially consistent.
Further, the main drainback passage includes the first main drainback passage, the second main drainback passage and the main oil return of third
Channel, the first main drainback passage and the main drainback passage of third are located at the two sides of the second main drainback passage and the first main oil return is logical
Road and the main drainback passage of third are higher than the second main drainback passage, and second backflash is two, and respectively with the first main oil return
Channel and the main drainback passage of third communicate, and the third drainback passage is communicated with the second main drainback passage.
Further, the upper end cover and lower cover are bolted, and the upper end cover and lower cover pass through bolt
It is connect with cabinet.
Compared with prior art, the utility model has the beneficial effects that by setting the first oil back chamber, the second oil back chamber and
The lubricating oil in each oil back chamber can be discharged in third oil back chamber and multiple drainback passages in time, and the mist of oil generated also can
It is enough back in cabinet, leakproofness can be effectively improved, waste and environmental pollution because of caused by oil leakage is avoided to ask
Topic.
Detailed description of the invention
Fig. 1 is the schematic side view of the utility model；
Fig. 2 is the schematic cross-sectional view of A-A in Fig. 1；
Fig. 3 is the schematic cross-sectional view of B-B in Fig. 1；
Appended drawing reference: 1-cabinet；2-axis；3-bearings；4-discs；5-upper end covers；6-lower covers；7-the first
Oil back chamber；8-the second oil back chamber；9-third oil back chambers；10-the first drainback passage；11-main drainback passages；12-the second time
Oily channel；13-third drainback passages；14-partitions.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
The reducer shaft end non-contacting sealing structure of the utility model, as shown in Figure 1, Figure 2 and Figure 3, including 1 He of cabinet
Axis 2, the side wall of the cabinet 1 are provided with mounting hole, and the axis 2 is installed on mounting hole by bearing 3,3 outer end of bearing
Disc 4 is provided on axis 2, cabinet 1, axis 2, bearing 3 etc. use existing reducer structure.
It further include upper end cover 5 and lower cover 6, the upper end cover 5 and lower cover 6 are detachably connected, specifically can be used multiple
Bolt handle and connection, upper end cover 5 and lower cover 6 surround disc 4 and surround the second oil back chamber 8, and upper end cover 5 and lower cover 6 are equal
End plate including two pieces of semi-circular shape and the arc pressuring plate for connecting two end plates, two end plates and connecting plate surround inner cavity, hold
The internal diameter of plate is consistent with the outer diameter of disc 4, guarantees the leakproofness of the second oil back chamber 8.Upper end cover 5 and lower cover 6 with cabinet 1
It is detachably connected, bolt handle and connection specifically can be used.Is provided between the inner face and bearing 3 of upper end cover 5 and lower cover 6
The inner face of one oil back chamber 7, upper end cover 5 and lower cover 6 refers to that, close to the end face of bearing 3, bearing 3 is mounted in mounting hole,
Length is less than the length of mounting hole, after upper end cover 5 and lower cover 6 are installed to cabinet 1, the inner face of upper end cover 5 and lower cover 6
It is bonded with the outer wall of cabinet 1, there is spacing between the end face and upper end cover 5 and the inner face of lower cover 6 of bearing 3, that is, form the
One oil back chamber 7, the lubricating oil of bearing 3 can be directly entered the first oil back chamber 7.The lower cover 6 is arranged far from one end of bearing 3
There is third oil back chamber 9, third oil back chamber 9 prevents mist of oil from flowing directly to be lost outside retarder for collecting mist of oil.
In order to realize the reflux of lubricating oil, oil leakage is avoided, is provided with and leads back in the cabinet 1 of 3 lower section of bearing
Oily channel 11, main drainback passage 11 are communicated with the inside of retarder, for lubricating oil to be sent into retarder, realize following for lubricating oil
Ring.The bottom of the lower cover 6 is provided with the first drainback passage 10 of connection third oil back chamber 9 and main drainback passage 11, described
First oil back chamber 7 is connected by the second drainback passage 12 with main drainback passage 11, and second oil back chamber 8 passes through third oil return
Channel 13 is connected with main drainback passage 11.The flow path of lubricating oil are as follows: the lubricating oil of reducer gear and bearing 3 first into
Enter first oil back chamber 7 adjacent with bearing 3, most of lubricating oil in the first oil back chamber 7 is entered by the second drainback passage 12
Then main drainback passage 11 is flowed back to inside retarder by main drainback passage 11.Remaining fraction lubrication in first oil back chamber 7
Oil flows to disc 4 along axis 2, rotates in disc 4 and enters the second oil back chamber 8 under the centrifugal force generated acts on, and second time
Lubricating oil in oil pocket 8 passes through third drainback passage 13 again and enters main drainback passage 11, finally flows back to and subtracts from main drainback passage 11
Inside fast device.Since the lubricating oil of mist of oil leakage enters third oil back chamber 9 in second oil back chamber 8, the lubrication in third oil back chamber 9
Oil enters main drainback passage 11 by the first drainback passage 10 again, finally flows back to inside retarder from main drainback passage 11.By
Three times after oil return, can substantially recycle whole lubricating oil, oil leakage can be effectively prevented, avoid lubricating oil waste and
Pollute workshop condition.
First drainback passage 10 and third drainback passage 13 are the first reflux that 6 intracavity bottom of lower cover is arranged in
Slot, the second oil back chamber 8 and third oil back chamber 9 are connected to by the first backflash with main drainback passage 11.First backflash
It is obliquely installed with main drainback passage 11, and one end inside cabinet 1 is lower than far from one end inside cabinet 1, can enhance profit
The flowing velocity of lubricating oil guarantees that the lubricating oil in the second oil back chamber 8 and third oil back chamber 9 can be flowed into all inside retarder.
Partition 14 is provided in second oil back chamber 8, the second oil back chamber 8 is divided into multiple points of oil returns by the partition 14
Cavity each divides oil return cavity to be connected with the first backflash, and partition 14 can play the effect of gear oil, reduces and enters third oil return
Lubricating oil quantity in chamber 9.
Second drainback passage 12 can be the duct being arranged in retarder, it is preferred that second drainback passage 12 is
Second backflash of 6 inner end end face of lower cover is set, and the length direction of second backflash is radially consistent with axis 2.
The main drainback passage 11 includes the first main drainback passage, the second main drainback passage and the main drainback passage of third, institute
It states the first main drainback passage and the main drainback passage of third is located at two sides and the first main drainback passage and of the second main drainback passage
Three main drainback passages be higher than the second main drainback passage, second backflash be two, and respectively with the first main drainback passage and
The main drainback passage of third communicates, and the third drainback passage 13 is communicated with the second main drainback passage.Due in the first oil back chamber 7
Lubricating oil quantity is more, therefore carries out oil return using two main drainback passages 11, and oil return speed is faster, more efficient.And second
Lubricating oil in oil back chamber 8 and third oil back chamber 9 is fewer, and carrying out oil return using the same main drainback passage 11 just can satisfy
It is required that.In addition, by the main drainback passage 11 of the main drainback passage 11 and the first oil back chamber 7 of the second oil back chamber 8 and third oil back chamber 9
It is provided separately, does not interfere with each other, can prevent the lubricating oil in the first oil back chamber 7 from flowing backwards and enter the second oil back chamber 8 and third oil back chamber
9。
Claims (7)
1. reducer shaft end non-contacting sealing structure, including cabinet (1) and axis (2), the side wall of the cabinet (1) are provided with peace
Hole is filled, the axis (2) is installed on mounting hole by bearing (3), is provided with disc on the axis (2) of bearing (3) outer end
(4), which is characterized in that
Further include upper end cover (5) and lower cover (6), the upper end cover (5) and lower cover (6) are detachably connected, upper end cover (5) and
Lower cover (6) surrounds disc (4) and surrounds the second oil back chamber (8), and upper end cover (5) and lower cover (6) are removable with cabinet (1)
Connection is unloaded, and is provided with the first oil back chamber (7) between upper end cover (5) and the inner face and bearing (3) of lower cover (6), under described
End cap (6) is provided with third oil back chamber (9) far from the one end of bearing (3)；It is provided in cabinet (1) below the bearing (3)
Main drainback passage (11), the bottom of the lower cover (6) are provided with the of connection third oil back chamber (9) and main drainback passage (11)
One drainback passage (10), first oil back chamber (7) are connected by the second drainback passage (12) with main drainback passage (11), institute
The second oil back chamber (8) are stated to be connected by third drainback passage (13) with main drainback passage (11).
2. reducer shaft end non-contacting sealing structure according to claim 1, which is characterized in that first oil return is logical
Road (10) and third drainback passage (13) are first backflash of the setting in lower cover (6) intracavity bottom.
3. reducer shaft end non-contacting sealing structure according to claim 2, which is characterized in that first backflash
It is obliquely installed with main drainback passage (11), and is lower than one end internal far from cabinet (1) close to cabinet (1) internal one end.
4. reducer shaft end non-contacting sealing structure according to claim 2, which is characterized in that second oil back chamber
(8) it is provided with partition (14) in, the second oil back chamber (8) is divided into multiple points of oil return cavitys by the partition (14), is each divided back
Oil cavity is connected with the first backflash.
5. reducer shaft end non-contacting sealing structure according to claim 1, which is characterized in that second oil return is logical
Road (12) is second backflash of the setting in lower cover (6) inner end end face, length direction and axis (2) of second backflash
It is radially consistent.
6. reducer shaft end non-contacting sealing structure according to claim 4, which is characterized in that the main drainback passage
It (11) include the first main drainback passage, the second main drainback passage and the main drainback passage of third, the first main drainback passage and the
Three main drainback passages are located at the two sides of the second main drainback passage and the first main drainback passage and the main drainback passage of third are higher than second
Main drainback passage, second backflash is two, and is communicated respectively with the first main drainback passage and the main drainback passage of third, institute
Third drainback passage (13) is stated to communicate with the second main drainback passage.
7. reducer shaft end non-contacting sealing structure according to claim 1, which is characterized in that the upper end cover (5)
It is bolted with lower cover (6), the upper end cover (5) and lower cover (6) are connect by bolt with cabinet (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920408628.3U CN209688063U (en) | 2019-03-28 | 2019-03-28 | Reducer shaft end non-contacting sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920408628.3U CN209688063U (en) | 2019-03-28 | 2019-03-28 | Reducer shaft end non-contacting sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209688063U true CN209688063U (en) | 2019-11-26 |
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ID=68606468
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920408628.3U Active CN209688063U (en) | 2019-03-28 | 2019-03-28 | Reducer shaft end non-contacting sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209688063U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483633A (en) * | 2020-11-20 | 2021-03-12 | 马鞍山市龙腾机电科技有限公司 | Special multifunctional gearbox shell for three-dimensional parking space |
-
2019
- 2019-03-28 CN CN201920408628.3U patent/CN209688063U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483633A (en) * | 2020-11-20 | 2021-03-12 | 马鞍山市龙腾机电科技有限公司 | Special multifunctional gearbox shell for three-dimensional parking space |
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