CN112943901A - Gear transmission structure - Google Patents
Gear transmission structure Download PDFInfo
- Publication number
- CN112943901A CN112943901A CN202110163196.6A CN202110163196A CN112943901A CN 112943901 A CN112943901 A CN 112943901A CN 202110163196 A CN202110163196 A CN 202110163196A CN 112943901 A CN112943901 A CN 112943901A
- Authority
- CN
- China
- Prior art keywords
- oil
- gear
- transmission structure
- hole
- gear 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 93
- 238000005096 rolling process Methods 0.000 claims abstract description 11
- 239000000126 substance Substances 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 5
- 239000003921 oil Substances 0.000 description 79
- 239000010687 lubricating oil Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000004040 coloring Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
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
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
-
- 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
- F16H57/02—Gearboxes; Mounting gearing therein
-
- 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
- F16H57/0424—Lubricant guiding means in the wall of or integrated with the casing, e.g. grooves, channels, holes
-
- 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
- F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
Abstract
The application belongs to the technical field of engine central transmission structural design, concretely relates to gear drive structure, include: the transmission shell is provided with a first through hole and a second through hole; a face gear shaft, one end of which extends into the transmission shell from the first through hole, and the face gear of which is positioned at the end; the inner ring of the ball bearing is sleeved on the face gear shaft, and the outer ring of the ball bearing is connected to the transmission shell; a cylindrical gear shaft, one end of which extends into the transmission shell from the second through hole, and the cylindrical gear of which is positioned at the end; the face gear is meshed with the cylindrical gear; the inner ring of the two rolling rod bearings is sleeved on the cylindrical gear shaft, and the outer ring of the two rolling rod bearings is connected to the transmission shell.
Description
Technical Field
The application belongs to the technical field of engine central transmission structure design, and particularly relates to a gear transmission structure.
Background
In an aircraft engine, power and torque are transmitted between a high-pressure rotor and an accessory gearbox by means of a central transmission structure, the current central transmission structure mostly transmits the power and the torque between the high-pressure rotor and the accessory gearbox through two mutually meshed spiral bevel gears, and the technical scheme has the following defects:
1) the spiral bevel gear has small bearing capacity, needs a large size structure when power and torque are transmitted between a high-pressure rotor and an accessory gearbox to be large, occupies a large space, aggravates the contradiction between the high-pressure rotor and the accessory gearbox, and ensures that the main bearing span is large and the critical rotating speed margin of an engine rotor is insufficient;
2) the driven spiral bevel gear can bear large radial force, tangential force and axial force at the same time, effective support can be realized only by two rolling rod bearings and ball bearings, the number of required parts is large, the structure is complex, and assembly is difficult;
3) under the condition that the size structure is large and the number of parts is large, the engine has large mass, so that the thrust-weight ratio of the engine is reduced, and the performance of the engine is seriously influenced;
4) the spiral bevel gear is sensitive to axial position errors, coloring marks are difficult to adjust, assembling performance is poor, running stability is poor, and improvement of engine performance is limited.
The present application has been made in view of the above-mentioned technical drawbacks.
It should be noted that the above background disclosure is only for the purpose of assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and the above background disclosure should not be used for evaluating the novelty and inventive step of the present application without explicit evidence to suggest that the above content is already disclosed at the filing date of the present application.
Disclosure of Invention
It is an object of the present application to provide a gear transmission arrangement to overcome or mitigate at least one of the technical disadvantages of the known prior art.
The technical scheme of the application is as follows:
a gear transmission structure comprising:
the transmission shell is provided with a first through hole and a second through hole;
a face gear shaft, one end of which extends into the transmission shell from the first through hole, and the face gear of which is positioned at the end;
the inner ring of the ball bearing is sleeved on the face gear shaft, and the outer ring of the ball bearing is connected to the transmission shell;
a cylindrical gear shaft, one end of which extends into the transmission shell from the second through hole, and the cylindrical gear of which is positioned at the end; the face gear is meshed with the cylindrical gear;
the inner ring of the two rolling rod bearings is sleeved on the cylindrical gear shaft, and the outer ring of the two rolling rod bearings is connected to the transmission shell.
According to at least one embodiment of the present application, in the above-described gear transmission structure, the face gear shaft is hollow.
According to at least one embodiment of the present application, the above-mentioned gear transmission structure further includes:
one end of the transmission shaft is in fit connection with one end of the cylindrical gear shaft, which is back to the cylindrical gear, in the spline teeth.
According to at least one embodiment of the present application, in the above-mentioned gear transmission structure, the transmission housing has a first mounting hole;
the gear transmission structure further includes:
and the first oil nozzle is arranged in the first mounting hole and faces to the meshing part between the face gear and the cylindrical gear.
According to at least one embodiment of the present application, in the above-mentioned gear transmission structure, an end surface of one end of the cylindrical gear shaft extending into the transmission housing is recessed to form an oil receiving cavity, a first oil supply channel is formed between the end side wall and one inner ring of the roller bearing, and a second oil supply channel is formed between the end side wall and the other inner ring of the roller bearing; wherein the content of the first and second substances,
the inlet end of the first oil supply channel is communicated to the oil receiving cavity, and the outlet end of the first oil supply channel is communicated to the outer wall surface of the corresponding roller bearing inner ring;
the inlet end of the second oil supply channel is communicated to the oil receiving cavity, and the outlet end of the second oil supply channel is communicated to the outer wall surface of the corresponding roller bearing inner ring;
the transmission shell is provided with a second mounting hole;
the gear transmission structure further includes:
and the second oil nozzle is arranged in the first mounting hole and faces the oil receiving cavity.
According to at least one embodiment of the present application, in the above-described gear transmission structure, the first oil supply passage is provided in plurality and distributed in a circumferential direction;
the second oil supply channels are distributed along the circumferential direction.
According to at least one embodiment of the present application, the above-mentioned gear transmission structure further includes:
the oil distribution sleeve is provided with a first oil distribution hole and a second oil distribution hole, the inner wall of the oil distribution sleeve is provided with an annular partition bulge, and a first annular oil collecting groove and a second annular oil collecting groove are formed between the oil distribution sleeve and the oil collecting cavity; wherein the content of the first and second substances,
the first oil distribution hole is communicated with the first oil supply channel and the first annular oil collecting groove;
the second oil distribution hole is communicated with the second oil supply channel and the second annular oil collecting groove;
the annular partition bulge is positioned between the first annular oil collecting groove and the second annular oil collecting groove.
According to at least one embodiment of the present application, in the above-described gear transmission structure, the first oil dividing holes are plural and distributed in the circumferential direction;
the second branch oilhole is a plurality of, distributes along circumference.
Drawings
FIG. 1 is a schematic diagram of a gear transmission configuration provided by an embodiment of the present application;
FIG. 2 is a schematic diagram of force transmission between a face gear shaft and a cylindrical gear shaft provided in the embodiment of the present application;
FIG. 3 is a schematic view of an assembly relationship of a face gear shaft and a cylindrical gear shaft provided by an embodiment of the application;
wherein:
1-a transmission housing; 2-face gear shaft; 3-a ball bearing; 4-cylindrical gear shaft; 5-roller shaft
Carrying; 6-a transmission shaft; 7-a first fuel injector; 8-a second fuel injector; 9-oil separation sleeve; 10-ring-shaped dividing convex
Discharging; 11-high pressure rotor of engine; 12-an engine accessory gearbox; 13-engine case.
For the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; further, the drawings are for illustrative purposes, and terms describing positional relationships are limited to illustrative illustrations only and are not to be construed as limiting the patent.
Detailed Description
In order to make the technical solutions and advantages of the present application clearer, the technical solutions of the present application will be further clearly and completely described in the following detailed description with reference to the accompanying drawings, and it should be understood that the specific embodiments described herein are only some of the embodiments of the present application, and are only used for explaining the present application, but not limiting the present application. It should be noted that, for convenience of description, only the parts related to the present application are shown in the drawings, other related parts may refer to general designs, and the embodiments and technical features in the embodiments in the present application may be combined with each other to obtain a new embodiment without conflict.
In addition, unless otherwise defined, technical or scientific terms used in the description of the present application shall have the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", and the like used in the description of the present application, which indicate orientations, are used only to indicate relative directions or positional relationships, and do not imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly, and thus, should not be construed as limiting the present application. The use of "first," "second," "third," and the like in the description of the present application is for descriptive purposes only to distinguish between different components and is not to be construed as indicating or implying relative importance. The use of the terms "a," "an," or "the" and similar referents in the context of describing the application is not to be construed as an absolute limitation on the number, but rather as the presence of at least one. The word "comprising" or "comprises", and the like, when used in this description, is intended to specify the presence of stated elements or items, but not the exclusion of other elements or items.
Further, it is noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are used in the description of the invention in a generic sense, e.g., connected as either a fixed connection or a removable connection or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected through the inside of two elements, and those skilled in the art can understand their specific meaning in this application according to the specific situation.
The present application is described in further detail below with reference to fig. 1 to 3.
A gear transmission structure comprising:
a transmission housing 1 having a first through hole and a second through hole;
a face gear shaft 2, one end of which extends into the transmission housing 1 from the first through hole, and a face gear of which is located at the end;
the ball bearing 3, its inner race is connected to the face gear shaft 2, its outer race is connected to the drive housing 1;
a cylindrical gear shaft 4, one end of which extends into the transmission housing 1 from the second through hole, and the cylindrical gear of which is located at the end; the face gear is meshed with the cylindrical gear;
two rolling rod bearings 5, the inner ring of which is sleeved on the cylindrical gear shaft 4, and the outer ring of which is connected on the transmission shell 1.
With regard to the gear transmission structure disclosed in the above embodiments, it will be understood by those skilled in the art that it can be used as a central transmission structure of an aircraft engine, and when it is used as a central transmission structure of an aircraft engine, the transmission housing 1 thereof can be connected to the engine case 13, the end of the face gear shaft 2 facing away from the cylindrical gear shaft 4 is connected to the engine high-pressure rotor 11, the end of the cylindrical gear shaft 4 facing away from the face gear shaft 2 is connected to a gear shaft in the engine accessory gearbox 12, and power and torque are transmitted between the engine high-pressure rotor 11 and the engine accessory gearbox 12 through the face gear and the cylindrical gear which are meshed with each other.
With regard to the gear transmission structure disclosed in the above embodiments, it can be further understood by those skilled in the art that when the gear transmission structure is used as a central transmission structure of an aircraft engine, power and torque are transmitted between the engine high-pressure rotor 11 and the engine accessory gearbox 12 through the face gear and the cylindrical gear which are meshed with each other, because the tooth surface of the face gear is a high-order complex curved surface, the instantaneous point contact area is large when the gear pair is meshed, so that the gear transmission structure has high bearing capacity, can transmit large load with a small-sized structure, does not occupy large space, can shorten the main bearing span, and improves the critical rotation speed margin of the engine rotor.
For the gear transmission structure disclosed in the above embodiment, it can be understood by those skilled in the art that when it is used as a central transmission structure of an aircraft engine, power and torque are transmitted between the engine high-pressure rotor 11 and the engine accessory gearbox 12 through the face gear and the cylindrical gear which are engaged with each other, the cylindrical gear as a driven gear can decompose the stress into tangential force and radial force, and is free from the action of axial force, and only two rolling rod bearings 5 are needed to realize effective support, the number of required parts is small, the structure is relatively simple, the assembly is convenient, and in addition, the weight is relatively light, the thrust-weight ratio of the engine is not seriously reduced, so that the performance of the engine can be ensured. The stress analysis of the contact point of the face gear and the cylindrical gear is shown in fig. 2, the stress of the driven gear can be decomposed into a tangential force Ft and a radial force Fr, and only two roller bearings 5 are needed to bear the radial force and the tangential force at A, B.
For the gear transmission structure disclosed in the above embodiment, it can be understood by those skilled in the art that when it is used as a central transmission structure of an aircraft engine, power and torque are transmitted between the engine high-pressure rotor 11 and the engine accessory gearbox 12 through the face gear and the cylindrical gear which are engaged with each other, the rotating and matching relationship between the face gear and the cylindrical gear which are engaged with each other is shown in fig. 3, the axes of the face gear and the cylindrical gear are vertically intersected and are insensitive to position errors, the relative position deviation is generated due to stress in the working process, the running stability is not affected, and the difficulty in assembling and coloring impression adjustment can be reduced.
In some alternative embodiments, the face gear shaft 2 is hollow in the above-described gear transmission structure.
With respect to the gear transmission structure disclosed in the above embodiment, it will be understood by those skilled in the art that, when used as a central transmission structure of an aircraft engine, the face gear shaft 2 may be sleeved on the engine high-pressure rotor 11.
In some optional embodiments, the above gear transmission structure further includes:
one end of the transmission shaft 6 is in fit connection with one end of the cylindrical gear shaft 4, which is back to the cylindrical gear, through key teeth.
With respect to the gear drive arrangement disclosed in the above embodiments, it will be appreciated by those skilled in the art that it may be used as a central drive arrangement for an aircraft engine by connecting the end of the drive shaft 6 facing away from the cylindrical gear shaft 4 to a gear shaft in the engine accessory gearbox 12.
In some optional embodiments, in the above gear transmission structure, the transmission housing 1 has a first mounting hole;
the gear transmission structure further includes:
and a first oil jet 7 which is provided in the first mounting hole, faces the meshing portion between the face gear and the spur gear, and can spray lubricating oil to the meshing portion between the face gear and the spur gear to lubricate and cool the meshing portion.
In some optional embodiments, in the above-mentioned gear transmission structure, the end surface of one end of the cylindrical gear shaft 4 extending into the transmission housing 1 is recessed to form an oil receiving cavity, and the end side wall forms a first oil supply channel with the inner ring of one roller bearing 5 and a second oil supply channel with the inner ring of the other roller bearing 5; wherein the content of the first and second substances,
the inlet end of the first oil supply channel is communicated to the oil receiving cavity, and the outlet end of the first oil supply channel is communicated to the outer wall surface of the inner ring of the corresponding roller bearing 5;
the inlet end of the second oil supply channel is communicated to the oil receiving cavity, and the outlet end of the second oil supply channel is communicated to the outer wall surface of the inner ring of the corresponding roller bearing 5;
the transmission shell 1 is provided with a second mounting hole;
the gear transmission structure further includes:
and the second oil nozzle 8 is arranged in the first mounting hole and faces the oil receiving cavity.
With regard to the gear transmission structure disclosed in the above embodiment, it will be understood by those skilled in the art that when the gear transmission structure is used as a central transmission structure of an aircraft engine, lubricating oil can be injected into the oil receiving cavity through the second oil injection nozzle 8, and the lubricating oil injected into the oil receiving cavity can flow into the corresponding roller bearings 5 through the first oil supply passage and the second oil supply passage under the action of centrifugal force, so as to lubricate and cool the interiors of the two roller bearings 5.
In some optional embodiments, in the above gear transmission structure, the first oil supply passage is distributed in a plurality of circumferential directions;
the second oil supply channels are distributed along the circumferential direction.
In some optional embodiments, the above gear transmission structure further includes:
the oil distribution sleeve 9 is provided with a first oil distribution hole and a second oil distribution hole, the inner wall of the oil distribution sleeve is provided with an annular partition bulge 10, and a first annular oil collecting groove and a second annular oil collecting groove are formed between the oil distribution sleeve and the oil collecting cavity; wherein the content of the first and second substances,
the first oil distribution hole is communicated with the first oil supply channel and the first annular oil collecting groove;
the second oil distribution hole is communicated with the second oil supply channel and the second annular oil collecting groove;
the annular dividing protrusion 10 is located between the first annular oil collecting groove and the second annular oil collecting groove.
With regard to the gear transmission structure disclosed in the above embodiment, it can be understood by those skilled in the art that when the gear transmission structure is used as a central transmission structure of an aircraft engine, lubricating oil can be injected into the oil distribution sleeve 9 through the second oil injection nozzle 8, the lubricating oil injected into the oil distribution sleeve 9 is distributed in the spaces on both sides of the annular partition protrusion 10, and flows into the first annular oil collection tank and the second annular oil collection tank through the first oil distribution hole and the second oil distribution hole respectively under the action of centrifugal force, and then flows into the first oil supply channel and the second oil supply channel respectively in the first annular oil collection tank and the second annular oil collection tank, so that the distribution of the lubricating oil between the two rolling rod bearings 5 can be better realized, and the lubricating and cooling effects inside the two rolling rod bearings 5 can be ensured.
In some optional embodiments, in the above gear transmission structure, the first oil dividing hole is plural and distributed along the circumferential direction;
the second branch oilhole is a plurality of, distributes along circumference.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
Having thus described the present application in connection with the preferred embodiments illustrated in the accompanying drawings, it will be understood by those skilled in the art that the scope of the present application is not limited to those specific embodiments, and that equivalent modifications or substitutions of related technical features may be made by those skilled in the art without departing from the principle of the present application, and those modifications or substitutions will fall within the scope of the present application.
Claims (8)
1. A gear transmission structure, comprising:
the transmission shell (1) is provided with a first through hole and a second through hole;
a face gear shaft (2), one end of which extends into the transmission shell (1) from the first through hole, and the face gear of which is positioned at the end;
the inner ring of the ball bearing (3) is sleeved on the face gear shaft (2), and the outer ring of the ball bearing is connected to the transmission shell (1);
a cylindrical gear shaft (4) having one end extending into the transmission housing (1) from the second through hole, the cylindrical gear being located at the end; the face gear is meshed with the cylindrical gear;
the inner ring of the two rolling rod bearings (5) is sleeved on the cylindrical gear shaft (4), and the outer ring of the two rolling rod bearings is connected to the transmission shell (1).
2. The gear transmission structure according to claim 1,
the face gear shaft (2) is hollow.
3. The gear transmission structure according to claim 1,
further comprising:
and one end of the transmission shaft (6) is in fit connection with one end of the cylindrical gear shaft (4) back to the cylindrical gear through key teeth.
4. The gear transmission structure according to claim 1,
the transmission shell (1) is provided with a first mounting hole;
the gear transmission structure further includes:
and the first oil nozzle (7) is arranged in the first mounting hole and faces to a meshing part between the face gear and the cylindrical gear.
5. The gear transmission structure according to claim 1,
the end face of one end of the cylindrical gear shaft (4) extending into the transmission shell (1) is sunken to form an oil receiving cavity, a first oil supply channel is formed between the end side wall of the cylindrical gear shaft and the inner ring of one roller bearing (5), and a second oil supply channel is formed between the end side wall of the cylindrical gear shaft and the inner ring of the other roller bearing (5); wherein the content of the first and second substances,
the inlet end of the first oil supply channel is communicated to the oil receiving cavity, and the outlet end of the first oil supply channel is communicated to the outer wall surface of the inner ring of the corresponding roller bearing (5);
the inlet end of the second oil supply channel is communicated to the oil receiving cavity, and the outlet end of the second oil supply channel is communicated to the outer wall surface of the inner ring of the corresponding roller bearing (5);
the transmission shell (1) is provided with a second mounting hole;
the gear transmission structure further includes:
and the second oil nozzle (8) is arranged in the first mounting hole and faces the oil receiving cavity.
6. The gear transmission structure according to claim 5,
the first oil supply channels are distributed along the circumferential direction;
the second oil supply channels are distributed along the circumferential direction.
7. The gear transmission structure according to claim 5,
further comprising:
the oil distribution sleeve (9) is provided with a first oil distribution hole and a second oil distribution hole, the inner wall of the oil distribution sleeve is provided with an annular partition bulge (10), and a first annular oil collecting groove and a second annular oil collecting groove are formed between the oil collection cavity and the oil collection cavity; wherein the content of the first and second substances,
the first oil distributing hole is communicated with the first oil supply channel and the first annular oil collecting groove;
the second oil distribution hole is communicated with the second oil supply channel and the second annular oil collecting groove;
the annular dividing protrusion (10) is positioned between the first annular oil collecting groove and the second annular oil collecting groove.
8. The gear transmission structure according to claim 7,
the first oil distribution holes are distributed along the circumferential direction;
the second branch oilhole has a plurality ofly, distributes along circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110163196.6A CN112943901A (en) | 2021-02-05 | 2021-02-05 | Gear transmission structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110163196.6A CN112943901A (en) | 2021-02-05 | 2021-02-05 | Gear transmission structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112943901A true CN112943901A (en) | 2021-06-11 |
Family
ID=76242755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110163196.6A Pending CN112943901A (en) | 2021-02-05 | 2021-02-05 | Gear transmission structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112943901A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790216A (en) * | 2021-09-22 | 2021-12-14 | 中国航发沈阳发动机研究所 | Rotating shaft double-bearing supporting structure |
| CN113803374A (en) * | 2021-09-22 | 2021-12-17 | 中国航发沈阳发动机研究所 | Rotating shaft supporting structure |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB396353A (en) * | 1932-01-12 | 1933-08-03 | Viggo Axel Kjaer | Improvements in lubricating devices for driving chains |
| CN101117938A (en) * | 2007-09-11 | 2008-02-06 | 宁波欧易液压有限公司 | Oil distribution axle linkage rod type hydraulic motor |
| US20130108440A1 (en) * | 2011-11-01 | 2013-05-02 | General Electric Company | Series bearing support apparatus for a gas turbine engine |
| CN203395100U (en) * | 2013-06-25 | 2014-01-15 | 中国航空动力机械研究所 | Central transmission device |
| CN104847500A (en) * | 2015-04-30 | 2015-08-19 | 中国科学院工程热物理研究所 | Lubricating oil passage system, bearing co-chamber structure and gas turbine engine |
| CN105650206A (en) * | 2016-03-31 | 2016-06-08 | 中国航空动力机械研究所 | Helicopter transmission device |
| CN107218355A (en) * | 2017-06-02 | 2017-09-29 | 中国航发南方工业有限公司 | Oblique middle gear frame component and aero-engine for aero-engine |
| CN107795381A (en) * | 2017-11-23 | 2018-03-13 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of lubricating oil collection structure of the bearing radial direction fuel feeding between rotor |
| CN109707515A (en) * | 2018-12-04 | 2019-05-03 | 中国科学院工程热物理研究所 | A kind of vane type wheeling disk structure for gas turbine lubricant passage way system |
| CN111473092A (en) * | 2020-04-21 | 2020-07-31 | 中国航发沈阳发动机研究所 | Complete machine balance structure and engine with same |
| CN111561552A (en) * | 2020-05-13 | 2020-08-21 | 中国航发沈阳发动机研究所 | Gear shaft center oil supply structure |
-
2021
- 2021-02-05 CN CN202110163196.6A patent/CN112943901A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB396353A (en) * | 1932-01-12 | 1933-08-03 | Viggo Axel Kjaer | Improvements in lubricating devices for driving chains |
| CN101117938A (en) * | 2007-09-11 | 2008-02-06 | 宁波欧易液压有限公司 | Oil distribution axle linkage rod type hydraulic motor |
| US20130108440A1 (en) * | 2011-11-01 | 2013-05-02 | General Electric Company | Series bearing support apparatus for a gas turbine engine |
| CN203395100U (en) * | 2013-06-25 | 2014-01-15 | 中国航空动力机械研究所 | Central transmission device |
| CN104847500A (en) * | 2015-04-30 | 2015-08-19 | 中国科学院工程热物理研究所 | Lubricating oil passage system, bearing co-chamber structure and gas turbine engine |
| CN105650206A (en) * | 2016-03-31 | 2016-06-08 | 中国航空动力机械研究所 | Helicopter transmission device |
| CN107218355A (en) * | 2017-06-02 | 2017-09-29 | 中国航发南方工业有限公司 | Oblique middle gear frame component and aero-engine for aero-engine |
| CN107795381A (en) * | 2017-11-23 | 2018-03-13 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of lubricating oil collection structure of the bearing radial direction fuel feeding between rotor |
| CN109707515A (en) * | 2018-12-04 | 2019-05-03 | 中国科学院工程热物理研究所 | A kind of vane type wheeling disk structure for gas turbine lubricant passage way system |
| CN111473092A (en) * | 2020-04-21 | 2020-07-31 | 中国航发沈阳发动机研究所 | Complete machine balance structure and engine with same |
| CN111561552A (en) * | 2020-05-13 | 2020-08-21 | 中国航发沈阳发动机研究所 | Gear shaft center oil supply structure |
Non-Patent Citations (3)
| Title |
|---|
| 江苏省科学技术协会, 中国科学技术出版社 * |
| 苏里等: "某型航空发动机分油套销子磨损故障分析", 《沈阳航空航天大学学报》 * |
| 郭梅等: "航空发动机附件机匣结构设计方法研究", 《机械传动》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790216A (en) * | 2021-09-22 | 2021-12-14 | 中国航发沈阳发动机研究所 | Rotating shaft double-bearing supporting structure |
| CN113803374A (en) * | 2021-09-22 | 2021-12-17 | 中国航发沈阳发动机研究所 | Rotating shaft supporting structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2519305C2 (en) | Lubing and cooling of reduction gearbox with epicycloidal gearing | |
| CA2795427C (en) | Planetary gear system | |
| CN112943901A (en) | Gear transmission structure | |
| US8333678B2 (en) | Epicyclic gear system with load share reduction | |
| EP3490118A1 (en) | Lubricating oil supply structure | |
| JP4948620B2 (en) | Gear device | |
| CN107013669A (en) | Epicyclic gearbox with the cylinder roller bearing of Lubrication Design in seat ring | |
| US7892131B2 (en) | Method and apparatus for lubricating a differential in an axle assembly | |
| US20140323262A1 (en) | Overload protection | |
| CN107013675A (en) | Gearbox planetary squeeze-film damping device | |
| CN107013340B (en) | Power gear box pin is arranged | |
| CN106801726A (en) | Epicyclic gearbox with the cylindrical roller bearing with high density roller assembly | |
| CN102597559A (en) | High speed gear coupler | |
| US20180294692A1 (en) | In-wheel motor driving device | |
| US6080076A (en) | Mechanical locking differential | |
| CN102135172A (en) | Lubrication of a rotatable shaft | |
| US7686727B2 (en) | Lubrication system for high speed planet gears | |
| CN202468326U (en) | Vacuum pump | |
| US4540356A (en) | Internal axis crankless rotary piston engine | |
| CN115875425A (en) | Inner ring gear shaft, input shaft assembly, hybrid power electric drive assembly and vehicle | |
| JP2008522115A (en) | Gear device | |
| CN219394604U (en) | Differential motor of electric tricycle | |
| CN201747422U (en) | Circulating lubrication oil pump | |
| CN110594366A (en) | Cycloidal pin gear speed reducer with oil dynamic lubrication and cooling | |
| US11808344B2 (en) | Planet carrier for a mechanical gearbox of an aircraft turbomachine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210611 |
|
| RJ01 | Rejection of invention patent application after publication |