CN105065579A - Gear driving device - Google Patents
Gear driving device Download PDFInfo
- Publication number
- CN105065579A CN105065579A CN201510416098.3A CN201510416098A CN105065579A CN 105065579 A CN105065579 A CN 105065579A CN 201510416098 A CN201510416098 A CN 201510416098A CN 105065579 A CN105065579 A CN 105065579A
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- China
- Prior art keywords
- gear
- level
- connecting rod
- driven gear
- shaft
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- 238000003754 machining Methods 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
- F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
- Gear Transmission (AREA)
Abstract
The invention discloses a gear driving device. The gear driving device comprises a primary driving gear, a primary driven gear, a secondary driving gear and a secondary driven gear, wherein the primary driving gear is engaged with the primary driven gear, and the secondary driving gear is engaged with the secondary driven gear. The gear driving device is characterized in that a gear shaft of the primary driven gear and a gear shaft of the secondary driving gear are connected with the two ends of a connecting rod respectively, the gear shaft of the primary driven gear and the connecting rod are connected in a matching mode through inner and outer splines, and/or the gear shaft of the secondary driving gear and the connecting rod are connected in the matching mode through the inner and outer splines. The connecting rod is connected with the gear shaft of the primary driven gear and the gear shaft of the secondary driving gear so that torque transmission between two stages is achieved. The primary driven gear and the secondary driving gear are mutually independent so that two stages of gear pairs can be independently mounted; mutual influence during assembly of the two stages of gear pairs can be reduced; the assembly difficulty is reduced; the machining accuracy requirement of components is lowered.
Description
Technical field
The present invention relates to transmission field, especially, relate to a kind of gear drive.
Background technique
Along with the power level of aviation power and every profession and trade power used improves constantly, the load that its gear drive transmits is increasing, adopt single channel gear transmission cannot meet the demand of high-power power to gear drive, multichannel shunting gear transmission obtains increasingly extensive application.
In two-stage multichannel shunting train of gearings, see Fig. 1 and Fig. 2, usual one-level driven gear 20 and secondary driving gear 30 (being referred to as middle Double-gear) are designed to overall structure or non-removable linkage structure, as the spline joint etc. of interference fit.During train of gearings assembling, after installing a road gear, the mutual circumferential position of one-level driving gear 10 and secondary driven gear 40 is just determined, one-level driven gear 20 in the middle Double-gear on other each roads and secondary driving gear 30 just need determine its mutual circumferential position by oriented one-level driving gear 10 and secondary driven gear 40, therefore, middle Double-gear add man-hour one-level driven gear 20 and secondary driving gear 30 phase angle just need this angle relation of strict guarantee.And to there being helical gear train of gearings, two-stage gear pair engages also to need the axial position by adjusting middle Double-gear to ensure simultaneously.Therefore, in conventional two-stage multichannel shunting train of gearings, the processing request of spare part is high, and the assembling of train of gearings is complicated.
Summary of the invention
The invention provides a kind of gear drive, high to solve existing gear drive processing request, the technical problem of the assembling complexity of train of gearings.
The technical solution used in the present invention is as follows:
A kind of gear drive, comprise one-level driving gear, one-level driven gear, secondary driving gear and secondary driven gear, one-level driving gear and the engagement of one-level driven gear, secondary driving gear and the engagement of secondary driven gear, it is characterized in that, the gear shaft of one-level driven gear, the gear shaft of secondary driving gear are connected to connecting rod two ends, the gear shaft of one-level driven gear with between connecting rod and/or the gear shaft of secondary driving gear be connected by inside and outside spline fitted with between connecting rod.
Further, connecting rod two ends all connect the gear shaft of one-level driven gear and the gear shaft of secondary driving gear respectively by inside and outside spline fitted.
Further, the gear shaft of one-level driven gear is connected by inside and outside spline fitted with between connecting rod, and the gear shaft of secondary driving gear is fixedly connected with between connecting rod; Or
The gear shaft of secondary driving gear is connected by inside and outside spline fitted with between connecting rod, and the gear shaft of one-level driven gear is fixedly connected with between connecting rod.
Further, connecting rod comprises an external splines, and connecting rod is provided with a spline housing coordinated with external splines, and coordinates nested encryptions in the gear shaft of one-level driven gear or in the gear shaft of secondary driving gear by spline housing.
Further, one-level driving gear and one-level driven gear composition one-level gear pair, secondary driving gear and secondary driven gear composition secondary gear wheel set;
Minimum angular phase difference △ φ on connecting rod between two spline adjacent teeth be less than one-level gear pair and secondary gear wheel set backlash and.
Further, one-level driving gear and one-level driven gear composition one-level gear pair, secondary driving gear and secondary driven gear composition secondary gear wheel set;
Minimum angular phase difference △ φ on spline housing between two spline adjacent teeth be less than one-level gear pair and secondary gear wheel set backlash and.
Further, the gear shaft of one-level driven gear or the gear shaft of secondary driving gear by pin connection, interference connection, key connects or the mode of Flange joint is fixedly connected on connecting rod one end.
Further, one-level driving gear, one-level driven gear, secondary driving gear and secondary driven gear are spur gear, herringbone gear or circular tooth gear.
The present invention has following beneficial effect: connecting rod connects the gear shaft of one-level driven gear and the gear shaft of secondary driving gear, realizes the torsion pass of two inter-stages.One-level driven gear and secondary driving gear separate, two-stage gear pair is installed separately, decrease two-stage gear pair assembling time influencing each other, reduce the complexity of assembling, reduce the requirement on machining accuracy of spare part.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage.Below with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the gear drive of prior art;
Fig. 2 is the structural representation at another visual angle of gear drive of prior art;
Fig. 3 is the structural representation of the gear drive of the preferred embodiment of the present invention;
Fig. 4 is the structural representation of the gear drive of another preferred embodiment of the present invention;
Fig. 5 be the preferred embodiment of the present invention connecting rod on the schematic diagram of angular phase difference △ φ between two spline adjacent teeth.
Description of reference numerals: 100, one-level driving gear; 200, one-level driven gear; 300, secondary driving gear; 400, secondary driven gear; 500, connecting rod; 600, spline housing.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
With reference to Fig. 3 and Fig. 4, the preferred embodiments of the present invention provide a kind of gear drive and comprise one-level driving gear 100, one-level driven gear 200, secondary driving gear 300 and secondary driven gear 400, one-level driving gear 100 and one-level driven gear 200 engage, secondary driving gear 300 and secondary driven gear 400 engage, the gear shaft of one-level driven gear 200, the gear shaft of secondary driving gear 300 is connected to connecting rod 500 two ends, the gear shaft of one-level driven gear 200 with between connecting rod 500 and/or the gear shaft of secondary driving gear 300 be connected by inside and outside spline fitted with between connecting rod 500.
Connecting rod 500 is provided with spline, and spline can be external splines or internal spline.The gear shaft of one-level driven gear 200 and the gear shaft of secondary driving gear 300 can be all connected connecting rod 500 by arranging corresponding internal spline or external splines, also one of them can arrange corresponding internal spline or external splines and to be connected connecting rod 500 by the corresponding external splines of spline housing 600 or internal spline, another is fixedly connected with connecting rod 500.During assembling, belonging to one-level driven gear 200, belonging to gear pair, secondary driving gear 300, gear pair installs separately, and the first via can be installed arbitrarily, and other each roads can load smoothly through centering position, completes train of gearings assembling.
The present invention has following beneficial effect: connecting rod 500 connects the gear shaft of one-level driven gear 200 and the gear shaft of secondary driving gear 300, realizes the torsion pass of two inter-stages.One-level driven gear 200 and secondary driving gear 300 separate, two-stage gear pair is installed separately, decrease two-stage gear pair assembling time influencing each other, reduce the complexity of assembling, reduce the requirement on machining accuracy of spare part.
Alternatively, connecting rod 500 two ends all connect the gear shaft of one-level driven gear 200 and the gear shaft of secondary driving gear 300 respectively by inside and outside spline fitted.The gear shaft of one-level driven gear 200 with between connecting rod 500 and the gear shaft of secondary driving gear 300 be all connected by inside and outside spline fitted with between connecting rod 500, easier for installation, reduce the complexity of assembling.
Alternatively, the gear shaft of one-level driven gear 200 is connected by inside and outside spline fitted with between connecting rod 500, and the gear shaft of secondary driving gear 300 is fixedly connected with between connecting rod 500; Or be connected by inside and outside spline fitted between the gear shaft of secondary driving gear 300 with connecting rod 500, the gear shaft of one-level driven gear 200 is fixedly connected with between connecting rod 500.
Because one end of connecting rod 500 is connected by inside and outside spline fitted, can make one-level driven gear 200 and secondary driving gear 300 separate, reduce requirement on machining accuracy, reduce the complexity of installation.
Alternatively, connecting rod 500 comprises an external splines, and connecting rod 500 is provided with a spline housing coordinated with external splines 600, and coordinate nested encryptions in the gear shaft of one-level driven gear 200 by spline housing 600 or secondary driving gear 300 gear shaft in.Spline housing 600 is provided with the internal spline coordinated with external splines, connected by inside and outside spline fitted between connecting rod 500 and spline housing 600, connecting rod 500 is nested in by the cooperation of spline housing 600 in the gear shaft of one-level driven gear 200 or in the gear shaft of secondary driving gear 300 simultaneously.
Alternatively, with reference to Fig. 3, Fig. 4 and Fig. 5, one-level driving gear 100 and one-level driven gear 200 form one-level gear pair, secondary driving gear 300 and secondary driven gear 400 form secondary gear wheel set, the minimum angular phase difference △ φ on connecting rod 500 between two spline adjacent teeth be less than one-level gear pair and secondary gear wheel set backlash and.
Minimum angular phase difference △ φ on connecting rod 500 between two spline adjacent teeth be less than one-level gear pair and secondary gear wheel set backlash and.Can be random angle between the spline at two ends and the gear of respective end to, this greatly reduces difficulty of processing.On connecting rod 500 axial direction, minimum angular phase difference △ φ on connecting rod 500 between two spline adjacent teeth be less than two gear pairs backlash and, so just can ensure to have at least a position can realize assembling smoothly, eliminate influencing each other when two-stage gear pair assembles, the adjustment-free realizing train of gearings is installed, and reduces requirement on machining accuracy and assembling difficulty further.
Alternatively, with reference to Fig. 3, Fig. 4 and Fig. 5, one-level driving gear 100 and one-level driven gear 200 form one-level gear pair, secondary driving gear 300 and secondary driven gear 400 form secondary gear wheel set, the minimum angular phase difference △ φ on spline housing 600 between two spline adjacent teeth be less than one-level gear pair and secondary gear wheel set backlash and.
Minimum angular phase difference △ φ on spline housing 600 between two spline adjacent teeth be less than one-level gear pair and secondary gear wheel set backlash and.Can be random angle between the spline at two ends and the gear of respective end to, this greatly reduces difficulty of processing.On spline housing 600 axial direction, minimum angular phase difference △ φ on spline housing 600 between two spline adjacent teeth be less than two gear pairs backlash and, so just can ensure to have at least a position can realize assembling smoothly, eliminate influencing each other when two-stage gear pair assembles, the adjustment-free realizing train of gearings is installed, and reduces requirement on machining accuracy and assembling difficulty further.
Alternatively, the gear shaft of one-level driven gear 200 or the gear shaft of secondary driving gear 300 by pin connection, interference connection, key connects or the mode of Flange joint is fixedly connected on connecting rod 500 one end.When in the gear shaft of one-level driven gear 200 and the gear shaft of secondary driving gear 300 is connected with connecting rod 500 by being fixedly connected with mode, can middle a kind of connection by the way.Above-mentioned Placement, structure is simple, stable connection.
Alternatively, with reference to Fig. 3 and Fig. 4, one-level driving gear 100, one-level driven gear 200, secondary driving gear 300 and secondary driven gear 400 is spur gear, herringbone gear or circular tooth gear.One-level driving gear 100 and one-level driven gear 200 are one-level gear pair, and secondary driving gear 300 and secondary driven gear 400 are secondary gear wheel set.The form of gear tooth between two gear pairs can be identical or different.Be that thus profile of tooth is identical for meshing relation between gear between same gear pair, be spur gear, herringbone gear or circular tooth gear simultaneously.Above-mentioned design without the need to arranging the adjustment gear that adjustment two-stage gear pair engages simultaneously, can make structure more simplify compact, installs more simple.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.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 (8)
1. a gear drive, comprise one-level driving gear (100), one-level driven gear (200), secondary driving gear (300) and secondary driven gear (400), described one-level driving gear (100) and described one-level driven gear (200) engagement, described secondary driving gear (300) and described secondary driven gear (400) engagement, it is characterized in that, the gear shaft of described one-level driven gear (200), the gear shaft of described secondary driving gear (300) is connected to connecting rod (500) two ends, the gear shaft of described one-level driven gear (200) with between described connecting rod (500) and/or the gear shaft of described secondary driving gear (300) be connected by inside and outside spline fitted with between described connecting rod (500).
2. gear drive according to claim 1, it is characterized in that, described connecting rod (500) two ends all connect the gear shaft of described one-level driven gear (200) and the gear shaft of described secondary driving gear (300) respectively by inside and outside spline fitted.
3. gear drive according to claim 1, it is characterized in that, the gear shaft of described one-level driven gear (200) is connected by inside and outside spline fitted with between described connecting rod (500), and the gear shaft of described secondary driving gear (300) is fixedly connected with between described connecting rod (500); Or
The gear shaft of described secondary driving gear (300) is connected by inside and outside spline fitted with between described connecting rod (500), and the gear shaft of described one-level driven gear (200) is fixedly connected with between described connecting rod (500).
4. gear drive according to claim 3, it is characterized in that, described connecting rod (500) comprises an external splines, described connecting rod (500) is provided with a spline housing coordinated with described external splines (600), and coordinates nested encryptions in the gear shaft of described one-level driven gear (200) or in the gear shaft of described secondary driving gear (300) by described spline housing (600).
5. gear drive according to claim 2, it is characterized in that, described one-level driving gear (100) and described one-level driven gear (200) composition one-level gear pair, described secondary driving gear (300) and described secondary driven gear (400) composition secondary gear wheel set;
Minimum angular phase difference △ φ between upper two the spline adjacent teeth of described connecting rod (500) be less than described one-level gear pair and described secondary gear wheel set backlash and.
6. gear drive according to claim 4, it is characterized in that, described one-level driving gear (100) and described one-level driven gear (200) composition one-level gear pair, described secondary driving gear (300) and described secondary driven gear (400) composition secondary gear wheel set;
Minimum angular phase difference △ φ between upper two the spline adjacent teeth of described spline housing (600) be less than described one-level gear pair and described secondary gear wheel set backlash and.
7. gear drive according to claim 3, it is characterized in that, the gear shaft of described one-level driven gear (200) or the gear shaft of described secondary driving gear (300) by pin connection, interference connection, key connects or the mode of Flange joint is fixedly connected on described connecting rod (500) one end.
8. the gear drive according to any one of claim 1 ~ 7, it is characterized in that, described one-level driving gear (100), described one-level driven gear (200), described secondary driving gear (300) and described secondary driven gear (400) they are spur gear, herringbone gear or circular tooth gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510416098.3A CN105065579B (en) | 2015-07-15 | Gear assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510416098.3A CN105065579B (en) | 2015-07-15 | Gear assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105065579A true CN105065579A (en) | 2015-11-18 |
| CN105065579B CN105065579B (en) | 2018-08-31 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5588328A (en) * | 1994-07-08 | 1996-12-31 | Fanuc Ltd. | Gear mechanism improved to remove backlash |
| US6374689B1 (en) * | 2000-05-22 | 2002-04-23 | Harrier Technologies, Inc. | Continuous load balancing gear sets |
| CN102619946A (en) * | 2012-04-13 | 2012-08-01 | 中国航空动力机械研究所 | Branch torque transmission structure and mounting method thereof |
| CN202629021U (en) * | 2012-06-12 | 2012-12-26 | 南京高精齿轮集团有限公司 | Main transmission gear box for driving cold-rolling crimping machine |
| CN104500655A (en) * | 2014-12-11 | 2015-04-08 | 中国航空动力机械研究所 | Torsion-transmission helicopter reducer |
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5588328A (en) * | 1994-07-08 | 1996-12-31 | Fanuc Ltd. | Gear mechanism improved to remove backlash |
| US6374689B1 (en) * | 2000-05-22 | 2002-04-23 | Harrier Technologies, Inc. | Continuous load balancing gear sets |
| CN102619946A (en) * | 2012-04-13 | 2012-08-01 | 中国航空动力机械研究所 | Branch torque transmission structure and mounting method thereof |
| CN202629021U (en) * | 2012-06-12 | 2012-12-26 | 南京高精齿轮集团有限公司 | Main transmission gear box for driving cold-rolling crimping machine |
| CN104500655A (en) * | 2014-12-11 | 2015-04-08 | 中国航空动力机械研究所 | Torsion-transmission helicopter reducer |
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Address after: Dong Jiaduan 412002 in Hunan province Zhuzhou city Lusong District Patentee after: AECC HUNAN AVIATION POWERPLANT Research Institute Country or region after: China Address before: Dong Jiaduan 412002 in Hunan province Zhuzhou city Lusong District Patentee before: CHINA AVIATION POWER MACHINERY INSTITUTE Country or region before: China |
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