CN205937772U - Speed reducer - Google Patents
Speed reducer Download PDFInfo
- Publication number
- CN205937772U CN205937772U CN201620906803.8U CN201620906803U CN205937772U CN 205937772 U CN205937772 U CN 205937772U CN 201620906803 U CN201620906803 U CN 201620906803U CN 205937772 U CN205937772 U CN 205937772U
- Authority
- CN
- China
- Prior art keywords
- oil sealing
- sealing part
- bearing
- casing
- output shaft
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model provides a speed reducer, speed reducer includes the casing, and input shaft, the speed reducer of the hub connection of setting and CD -ROM drive motor constructs in the casing, constructed the drive and the rotatory output shaft of realization speed reduction by speed reducer, speed reducer construct including being located cooperation pivoted transmission shaft between input shaft and the output shaft, output shaft and casing between be provided with the bearing, its characterized in that: set up on the casing inboard that corresponds with the bearing on the output shaft keep away from in the first oil blanket part of bearing with hug closely in the second oil blanket part of bearing first oil blanket part with set up the terminal surface counterbalance that clearance and both correspond between the second oil blanket part, first oil blanket part and second oil blanket part on set up oriented casing inboard and outside open -ended groove structure respectively, the groove structure of first oil blanket parts be can be to above -mentioned clearance orientation elastic expansion, this speed reducer can realize high -efficient sealedly, prevents that lubricating oil from producing to reveal.
Description
Technical field
The utility model is related to a kind of deceleration device, particularly to a kind of reductor.
Background technology
Reductor is a kind of power transmission mechanism, using the velocity transducer of gear or worm gear, returning motor (motor)
Revolution decelerates to desired winding number, and obtains the mechanism of larger torque.
In mechanism currently used for transmission power and motion, the range of application of reductor is quite extensive.Almost in various machine
Its trace can be seen in the transmission system of tool, from the ship of the vehicles, automobile, locomotive, heavy machinery for building,
Machining machine and tool used by mechanical industry and automated production equipment, common household electrical appliances etc. in daily life.Its application is from dynamic greatly
The transmission work of power, to Smaller load, accurate angle transmission can see the application of reductor, and in commercial Application, subtracts
Fast machine has deceleration and increases torque functions.Therefore it is widely used in the conversion equipment of speed and moment of torsion.
In conventional reductor, in order to prevent the lubricant within reductor from flowing out to outside reductor, in reductor
The outside of the bearing of output shaft oil sealing part is installed.By installing this oil sealing part, it is prevented from the lubrication in reductor
Oil flows out to outside, it is difficult to effectively prevent lubricating oil because of oil pressure by axle and spilling in shaft-cup hole when actually used, thus
The lubricating oil in reductor is led to run off, on the one hand, to waste lubricating oil；On the other hand, due to the loss of lubricating oil, reduce
Lubricant effect in acceleration machine, makes the component in reductor easy to wear, thus shortening service life；Moreover, existing reductor
Complex structure, is not easily assembled.
Utility model content
In order to overcome the defect of prior art, the utility model provides a kind of reductor, and this reductor is capable of height
Effect sealing, prevents lubricating oil from producing and reveals.
Provide following technical scheme：A kind of reductor, described reductor includes casing, setting and drive motor in casing
Axle connect input shaft, reducing gear, be decelerated mechanism and drive and realize the output shaft that is rotated in deceleration, described reducing gear
Including the power transmission shaft coordinating rotation between input shaft and output shaft；It is provided with bearing between described output shaft and casing；
It is characterized in that：On internal side of shell corresponding with bearing on output shaft, setting is away from the first oil sealing part of bearing and is close to
In the second oil sealing part of bearing, gap is set between described first oil sealing part and described second oil sealing part and both are right
The end face answered offsets, and the first described oil sealing part and the second oil sealing part open up oriented internal side of shell and outer openings respectively
Groove structure, the groove structure of described the first oil sealing part is can be to above-mentioned gap direction elastic expansion.
The utility model is further arranged to, and the first described oil sealing part includes the made oil sealing part of quality of rubber materials
Body and coated in it by oil sealing hardware body and hardness is more than the bracing ring of oil sealing body, described bracing ring is circular,
On bracing ring, position corresponding with groove floor is provided with the elastic portion for elastic expansion.
The utility model is further arranged to, and the first described oil sealing part and the second oil sealing part include a little connecing respectively
Contact portion and face contact site, described face contact site is correspondingly arranged with the position of elastic portion.
The utility model has the advantages that：When reductor operates, the built-in lubricating oil of casing because input shaft with
When in casing, other gear trains produce pressure change, or the oil pressure causing oil temperature to raise and producing because of other group gear train frictions
During pressure, the elastic portion of the first oil sealing part can be realized storing to elastic expansion on the second oil sealing part direction under pressure
Pressure, can realize slowing down oozing out of lubricating oil to a certain extent.
Brief description
Fig. 1 is the structural representation of reductor sectional view in the present embodiment；
The structural representation of enlarged drawing at A for Fig. 2 Fig. 1.
In figure label implication is as follows：1- casing；2- input shaft；3- output shaft：4- power transmission shaft；5- bearing；6- end cap；7-
Two oil sealing parts；8- the first oil sealing part；81- point contact；82- face contact site；83- elastic portion；84- bracing ring；85- groove
Structure；9- the second oil sealing part；10- gap.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is used for the utility model is described, but is not limited to scope of the present utility model.
As shown in Figures 1 and 2, a kind of reductor, described reductor includes casing 1, setting and drive motor in casing 1
Input shaft 2 that axle connects, reducing gear, it is decelerated mechanism and drives and realize the output shaft 3 that is rotated in deceleration, described reducing gear
Including the power transmission shaft 4 coordinating rotation between input shaft 2 and output shaft 3；It is provided between described output shaft 3 and casing 1
Bearing 5；Setting on casing 1 inner side corresponding with bearing 5 on output shaft 3 is away from the first oil sealing part 8 of bearing 5 and is close to
In the second oil sealing part 7 of bearing 5, the outside of bearing 5 is additionally provided with end cap 6, in described first oil sealing part 8 and described second
Setting gap 10 and both corresponding end faces offset, the first described oil sealing part 8 and the second oil sealing part between oil sealing part 7
The groove structure 85 of oriented casing 1 inner side and outer openings is opened up respectively, the groove structure of described the first oil sealing part 8 on 7
85 is can be to above-mentioned gap 10 direction elastic expansion.First oil sealing part 8 include the made oil sealing hardware body of quality of rubber materials and
Coated in it by oil sealing hardware body and hardness is more than the bracing ring 84 of oil sealing body, described bracing ring 84 is circular,
On support ring 84, position corresponding with groove floor is provided with the elastic portion 83 for elastic expansion.
The utility model also selects a step to be set to, and the first described oil sealing part 8 and the second oil sealing part 7 are included a little respectively
Contact site 81 and face contact site 82, described face contact site 82 is correspondingly arranged with the position of elastic portion 83, the first oil sealing part 8 and
Second oil sealing part 7 corresponding face contact site 82 is oppositely arranged.
The utility model has the advantages that：When reductor operates, the built-in lubricating oil of casing because input shaft 2 with
When in casing, other gear trains produce pressure change, or the oil pressure causing oil temperature to raise and producing because of other group gear train frictions
During pressure, the elastic portion 83 of the first oil sealing part 8 under pressure can be real to elastic expansion on the second oil sealing part 7 direction
Existing pressure accumulation, can realize slowing down oozing out of lubricating oil to a certain extent.
The above is only preferred embodiment of the present utility model it is noted that common skill for the art
For art personnel, on the premise of without departing from the utility model know-why, some improvement and modification, above-mentioned vacation can also be made
If these improve and modification also should be regarded as protection domain of the present utility model.
Claims (3)
1. a kind of reductor, described reductor includes casing, arranges the input shaft being connected with the axle of drive motor, deceleration in casing
Mechanism, it is decelerated mechanism and drives and realize the output shaft that is rotated in deceleration, described reducing gear is included positioned at input shaft and output
The power transmission shaft of rotation is coordinated between axle；It is provided with bearing between described output shaft and casing；It is characterized in that：On output shaft
On internal side of shell corresponding with bearing, setting is away from the first oil sealing part of bearing and is close to the second oil sealing part of bearing,
Setting gap and both corresponding end faces offset between described first oil sealing part and described second oil sealing part, described the
The groove structure of oriented internal side of shell and outer openings opened up respectively on one oil sealing part and the second oil sealing part, described first
The groove structure of oil sealing part is can be to above-mentioned gap direction elastic expansion.
2. reductor according to claim 1 it is characterised in that：It is made that the first described oil sealing part includes quality of rubber materials
Oil sealing hardware body and coated in it by oil sealing hardware body and hardness is more than the bracing ring of oil sealing body, described bracing ring
For circular, in oil sealing hardware body, position corresponding with groove floor is provided with the elastic portion for elastic expansion.
3. reductor according to claim 2 it is characterised in that：The first described oil sealing part and the second oil sealing part divide
Do not include point contact and face contact site, described face contact site is correspondingly arranged with the position of elastic portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620906803.8U CN205937772U (en) | 2016-08-15 | 2016-08-15 | Speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620906803.8U CN205937772U (en) | 2016-08-15 | 2016-08-15 | Speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205937772U true CN205937772U (en) | 2017-02-08 |
Family
ID=57948162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620906803.8U Expired - Fee Related CN205937772U (en) | 2016-08-15 | 2016-08-15 | Speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205937772U (en) |
-
2016
- 2016-08-15 CN CN201620906803.8U patent/CN205937772U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170208 Termination date: 20190815 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |