CN202746563U - Decompression device of speed reducer - Google Patents
Decompression device of speed reducer Download PDFInfo
- Publication number
- CN202746563U CN202746563U CN 201220462084 CN201220462084U CN202746563U CN 202746563 U CN202746563 U CN 202746563U CN 201220462084 CN201220462084 CN 201220462084 CN 201220462084 U CN201220462084 U CN 201220462084U CN 202746563 U CN202746563 U CN 202746563U
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- CN
- China
- Prior art keywords
- input shaft
- oil
- input
- bearing
- speed reducer
- 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
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Abstract
The utility model discloses a decompression device of a speed reducer. The decompression device comprises an input shaft and a bearing device, wherein the bearing device comprises a bearing and a bearing seat; the bearing is provided with an oil feeding channel and two oil discharging channels; one of the oil discharging channels faces to the input end of an input shaft, and the other oil discharging channel is deviate from the input end of the input shaft; oil inlets are formed in the corresponding positions of the bearing seat and the oil feeding channel; the input end of the input shaft is provided with an end cover, and the end cover and the input shaft are matched with each other in a sealing manner; the part far away from the input end of the input shaft is provided with an output conversion gear; the input shaft between the bearing and the end cover is provided with an impeller which is provided with a plurality of inclined blades; and the inclining direction of each blade is matched with the rotation direction of the input shaft. According to the decompression device of the speed reducer disclosed by the utility model, the additional impeller with the inclined blades are driven to rotate by the high-speed rotation of the input shaft so as to take away lubricating oil at a sealing part of the end cover and the input shaft, thereby avoiding leakage due to risen oil pressure when oil input by an oil pump can not be discharged.
Description
Technical field
The utility model relates to the speed reducer technical field, is specifically related to a kind of decompressor of speed reducer.
Background technique
Speed reducer is a kind of power transmission mechanism, utilizes the velocity transducer of gear, the winding number of motor is decelerated to desired winding number, and obtain the mechanism of larger torque.For the mechanism of transferring power and motion, the application area of speed reducer is quite extensive at present.
When the large-scale speed reducer of design, because of bulky or because of the factor of working environment, the lubricated general employing pressure lubrication of speed reducer, at this moment, the pipeline of oil-way system distributes may exist error, and this error may cause the oil mass of distributing at the input end of speed reducer input shaft excessive or can't in time reflux, and makes the oil pressure of input end of input shaft too high, thereby the oil-sealing arrangement that causes the input end of input shaft to use leaks because bearing its pressure.
Summary of the invention
The purpose of this utility model is: for the deficiencies in the prior art, the utility model provides a kind of decompressor of speed reducer of effective reduction input shaft input end oil pressure.
To achieve these goals, the utility model has adopted following technological scheme:
A kind of decompressor of speed reducer, comprise input shaft and the bearing means that is set on the input shaft, described bearing means comprises bearing and is arranged on the outer bearing support of bearing, described bearing is provided with oil inlet passage and two oil discharge passages, one of them oil discharge passage arranges towards the input end direction, another oil discharge passage is towards deviating from the setting of input shaft input end direction, described bearing support and oil inlet passage corresponding position are provided with oil inlet hole, described bearing support is provided with end cap near the input shaft input end, described end cap and input shaft are sealed and matched, input shaft is provided with the output conversion gear away from a place of input end, the input shaft of described bearing between end cap is provided with the impeller that can rotate along with input shaft, described impeller is provided with some blades that are obliquely installed, and the true dip direction of described blade and input shaft rotate the direction setting that matches.
As preferably, described impeller is fixedly connected on the input shaft by the mode of flat key.After adopting above-mentioned preferred version, adopt the mode of flat key to fixedly mount impeller, both can guarantee that impeller is stable to be firmly fixed on the input shaft, made things convenient for again the detachable maintaining of impeller.
As preferably, described end cap is provided with the outside framework oil seal device near a side of input shaft input end, forms the setting that is sealed and matched of end cap and input shaft.After adopting above-mentioned preferred version, sealing effect is better.
The decompressor of speed reducer of the present utility model is to adopt to set up the impeller that band is obliquely installed blade, utilize the High Rotation Speed impeller of input shaft to rotate, the lubricant oil of end cap and input shaft sealing place is taken away, caused oil pressure to raise in order to avoid the oil mass of oil pump input can't be discharged and leak.
Description of drawings
Fig. 1 is the utility model embodiment's structural representation;
Fig. 2 is the side structure schematic representation of the utility model embodiment impeller;
Fig. 3 is the Facad structure schematic representation of the utility model embodiment impeller.
Embodiment
As shown in Figure 1, embodiment of the present utility model is a kind of decompressor of speed reducer specifically, comprises input shaft 1 and the bearing means 2 that is set on the input shaft 1.Bearing means 2 comprises bearing 21 and the bearing support 22 that is arranged on outside the bearing 21, bearing 21 is provided with oil inlet passage 211 and two oil discharge passages 212, one of them oil discharge passage 212 is towards the input end 11 direction settings of input shaft 1, and another oil discharge passage 212 is towards deviating from the direction setting of the input end 11 of input shaft 1.Bearing support 22 is provided with oil inlet hole 221 with oil inlet passage 211 corresponding positions, and bearing support 22 is provided with end cap 3 near input end 11 places of input shaft 1, and end cap 3 is sealed and matched with input shaft 1, and input shaft 1 is provided with output conversion gear 4 away from a place of input end 11.The input shaft 1 of bearing 21 between end cap 3 is provided with can be along with the impeller 5 of input shaft 1 rotation.
As shown in Figures 2 and 3, impeller 5 is provided with four blades that are obliquely installed 51, the setting that matches with the sense of rotation of input shaft 1 of the true dip direction of blade 51.51 one-tenth certain spiral angle settings of blade, impeller 5 is fixedly connected on the input shaft 1 by the mode of flat key.
During work, lubricant oil enters from the oil inlet hole 221 of bearing support 22, enters the oil discharge passage 212 of bearing 21 by the oil inlet passage 211 on the bearing 21, flows to a side of input shaft 1 input end 11 and deviates from a side of input end 11 by oil discharge passage 212 respectively.Input shaft 1 is high speed rotating under the driving of motor, and with the high speed rotating thereupon of the impeller 5 on the driven input shaft 1, the blade 51 of impeller 5 produces air-flow when rotating, air-flow blows to a side that deviates from input shaft 1 input end 11, the excessive oil mass in outside framework oil seal 6 places is blown away, thereby avoided input shaft 1 input end to reveal because of the excessive generation of oil pressure.
Claims (3)
1. the decompressor of a speed reducer, comprise input shaft and the bearing means that is set on the input shaft, described bearing means comprises bearing and is arranged on the outer bearing support of bearing, described bearing is provided with oil inlet passage and two oil discharge passages, one of them oil discharge passage arranges towards the input end direction, another oil discharge passage is towards deviating from the setting of input shaft input end direction, described bearing support and oil inlet passage corresponding position are provided with oil inlet hole, described bearing support is provided with end cap near the input shaft input end, described end cap and input shaft are sealed and matched, input shaft is provided with the output conversion gear away from a place of input end, it is characterized in that: the input shaft of described bearing between end cap is provided with the impeller that can rotate along with input shaft, described impeller is provided with some blades that are obliquely installed, and the true dip direction of described blade and input shaft rotate the direction setting that matches.
2. the decompressor of speed reducer according to claim 1, it is characterized in that: described impeller is fixedly connected on the input shaft by the mode of flat key.
3. the decompressor of speed reducer according to claim 1 is characterized in that: described end cap is provided with the outside framework oil seal device near a side of input shaft input end, forms the setting that is sealed and matched of end cap and input shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220462084 CN202746563U (en) | 2012-09-11 | 2012-09-11 | Decompression device of speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220462084 CN202746563U (en) | 2012-09-11 | 2012-09-11 | Decompression device of speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202746563U true CN202746563U (en) | 2013-02-20 |
Family
ID=47705962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220462084 Expired - Fee Related CN202746563U (en) | 2012-09-11 | 2012-09-11 | Decompression device of speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202746563U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438198A (en) * | 2013-08-29 | 2013-12-11 | 沃德(天津)传动有限公司 | Reducer and lubricating structure thereof |
| CN104251265A (en) * | 2013-06-28 | 2014-12-31 | 王又增 | High-speed sealing device |
-
2012
- 2012-09-11 CN CN 201220462084 patent/CN202746563U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251265A (en) * | 2013-06-28 | 2014-12-31 | 王又增 | High-speed sealing device |
| CN103438198A (en) * | 2013-08-29 | 2013-12-11 | 沃德(天津)传动有限公司 | Reducer and lubricating structure thereof |
| CN103438198B (en) * | 2013-08-29 | 2016-06-08 | 沃德(天津)传动有限公司 | A kind of step-down gear and lubrication system thereof |
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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: 20130220 Termination date: 20160911 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |