CN104373574A - Exhaust device of speed reducer - Google Patents
Exhaust device of speed reducer Download PDFInfo
- Publication number
- CN104373574A CN104373574A CN201410566868.8A CN201410566868A CN104373574A CN 104373574 A CN104373574 A CN 104373574A CN 201410566868 A CN201410566868 A CN 201410566868A CN 104373574 A CN104373574 A CN 104373574A
- Authority
- CN
- China
- Prior art keywords
- exhaust
- speed reducer
- exhaust valve
- retarder
- outlet valve
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0427—Guidance of lubricant on rotary parts, e.g. using baffles for collecting lubricant by centrifugal force
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention belongs to the technical field of aero-engines and particularly relates to an exhaust device of a speed reducer. The exhaust device of the speed reducer comprises a main transmission shaft and an exhaust valve. One end of the main transmission shaft is provided with a cavity matched with the exhaust valve. The wall, where the cavity is formed, of the main transmission shaft is provided with an oil discharge hole. The inner end of the exhaust valve is arranged in the speed reducer, and the outer end of the exhaust valve is arranged outside the speed reducer. The center of the exhaust valve is provided with an exhaust hole which penetrates through the inner end and the outer end of the exhaust valve. An air inlet of the exhaust hole is formed in the middle of the inner end of the exhaust valve. The exhaust device of the speed reducer is simple in structure and effectively solves the technical problems that pressure needs to be balanced and released and lubricating oil overflows because generated gas swells when a gear rubs and extrudes lubricating oil continuously in the high-speed rotating process.
Description
Technical field
The invention belongs to aero engine technology field, be specifically related to a kind of venting gas appliance of retarder.
Background technique
Retarder is a kind of transmission output mechanism of low rotation speed large torque, and it is by changing number that high speed rotating power gear and output shaft cog than reaching the object of falling rotating speed height torsion.Because in the reduction case closed, the gear of high speed rotating work is meshed and occurs that friction generates heat and successively extrude with lubricant oil to produce gas expansion phenomenon, for a long time will cause each component in casing of serious failure in this operating mode work or damage, and causing lubricant oil from the excessive phenomenon of venting gas appliance along with pressure increase.Visible most effective measures of will dealing with problems are that installation oil-gas separation exhaust is to discharge balancing Atmospheric pressure reduction.
At present in high engine speeds gear reducer and all kinds of mechanical transmission retarder oil-gas separation exhaust Application comparison many be exhaust oil return cup device, cyclone type oil air separation, dynamic pressure type gas and oil separating plant, centrifugal gas and oil separating plant, one-way valve etc.What certain aviation piston engine retarder external such as, adopted is exactly exhaust oil return cup device, and its structural principle is used for realizing the release of Oil-gas Separation solution gear reducer gas pressure that high speed rotating produces by the double dissociation of internal layer Oil-gas Separation ring and outer oil gas eseparation ring.Because engine retarder is subject to the restriction of oil-gas separator structure form, lubricant oil will be produced excessive as the rolling of aircraft flight attitude or when being inverted flight, but make the moving elements such as retarder middle gear and bearing can not get the Safety performance that effectively lubricating has a strong impact on aircraft flight, even cause catastrophic effect.
Summary of the invention
For above problem, the present invention proposes a kind of venting gas appliance of retarder, while realizing pressure release, effectively prevent the excessive of lubricant oil.
Technological scheme of the present invention is achieved in that a kind of venting gas appliance of retarder, comprise main drive shaft and outlet valve, one end of this main drive shaft is provided with the cavity matched with this outlet valve, the wall forming this cavity is provided with oil drainage hole, the inner of this outlet valve is placed in retarder, outer end is placed in outside retarder, and the center of this outlet valve is provided with the exhaust port running through inside and outside two ends, and the middle part of described outlet valve the inner is located at by the suction port of this exhaust port.
The high speed rotating of main rotary shaft makes the lubricant oil in its cavity produce centrifugal force and oil drainage hole throws away, and form Oil-gas Separation, gas is discharged from exhaust port and realizes the pressure release of retarder.
Structure of the present invention is simple, efficiently solves gas expansion that in high-speed gear rotation process, successive friction and Extrusion produces with lubricant oil and the balance pressure that causes discharge and the technical barrier of the excessive problem of lubricant oil.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is fundamental diagram of the present invention;
In figure: 1-main drive shaft, 11-cavity, 12-oil drainage hole, 2-outlet valve, 21-exhaust port, 211-suction port, 212-air outlet, 22-through hole, 3-lubricates pasta, and 4-lubricant oil moves towards, and 5-gas moves towards.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The venting gas appliance of retarder as shown in Figure 1, comprise main drive shaft 1 and outlet valve 2, one end of this main drive shaft 1 is provided with the cavity 11 matched with this outlet valve 2, the wall forming this cavity 11 is provided with oil drainage hole 12, the inner of this outlet valve 2 is placed in retarder, outer end is placed in outside retarder, and the center of this outlet valve 2 is provided with the exhaust port 21 running through inside and outside two ends, and the middle part of described outlet valve 2 the inner is located at by the suction port 211 of this exhaust port 21.
Outlet valve 2 can airtightly be arranged on the casing 3 of retarder, also can make one with casing 3.
The top of described outlet valve 2 outer end is located in the air outlet 212 of described exhaust port 21, greatly can reduce the excessive possibility of lubricant oil.
In order to make exhaust more unobstructed, the top of described outlet valve 2 the inner is provided with the through hole 22 through with described exhaust port 21.
The working principle of the venting gas appliance of retarder is as shown in Figure 2: the lubrication pasta 4 in retarder is all the time lower than the shaft axis of main rotary shaft 1, namely the suction port 211 of exhaust port 21 is positioned on lubrication pasta 4, during work under centrifugal action, in cavity 11 lubricant oil move towards 5 and gas move towards 6 as shown in Figure 2, when aircraft overturns, the suction port 211 of exhaust port 21 is positioned on lubrication pasta 4 all the time, ensures the persistency of pressure release.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. the venting gas appliance of a retarder, it is characterized in that: comprise main drive shaft (1) and outlet valve (2), one end of this main drive shaft (1) is provided with the cavity (11) matched with this outlet valve, the wall forming this cavity (11) is provided with oil drainage hole (12), the inner of this outlet valve (2) is placed in retarder, outer end is placed in outside retarder, the center of this outlet valve (2) is provided with the exhaust port (21) running through inside and outside two ends, and the inner middle part of described outlet valve (2) is located at by the suction port (211) of this exhaust port (21).
2. the venting gas appliance of retarder as claimed in claim 1, is characterized in that: the top of described outlet valve (2) outer end is located in the air outlet (212) of described exhaust port (21).
3. the venting gas appliance of retarder as claimed in claim 1 or 2, is characterized in that: the top of described outlet valve (2) the inner is provided with the through hole (22) through with described exhaust port (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410566868.8A CN104373574A (en) | 2014-10-22 | 2014-10-22 | Exhaust device of speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410566868.8A CN104373574A (en) | 2014-10-22 | 2014-10-22 | Exhaust device of speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104373574A true CN104373574A (en) | 2015-02-25 |
Family
ID=52552663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410566868.8A Pending CN104373574A (en) | 2014-10-22 | 2014-10-22 | Exhaust device of speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104373574A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049923A (en) * | 2020-09-07 | 2020-12-08 | 中国航发贵阳发动机设计研究所 | Lubricating structure with lubricating oil distribution function |
-
2014
- 2014-10-22 CN CN201410566868.8A patent/CN104373574A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049923A (en) * | 2020-09-07 | 2020-12-08 | 中国航发贵阳发动机设计研究所 | Lubricating structure with lubricating oil distribution function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150225 |
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| RJ01 | Rejection of invention patent application after publication |