CN102506127B - The retarder of motor - Google Patents
The retarder of motor Download PDFInfo
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- CN102506127B CN102506127B CN201110316029.7A CN201110316029A CN102506127B CN 102506127 B CN102506127 B CN 102506127B CN 201110316029 A CN201110316029 A CN 201110316029A CN 102506127 B CN102506127 B CN 102506127B
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- gear
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- wheel hub
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Abstract
The invention provides a kind of retarder of motor, comprise: driving gear (4), pinion gear (5), planet carrier (6) and fixed gear (11), driving gear (4) is fixedly connected with the bent axle (10) of motor (9); Be sleeved on to fixed gear (11) spacing in driving gear (4), fixed gear (11) is connected with the casing of retarder (2); Pinion gear (5) is arranged between driving gear (4) and fixed gear (11), and pinion gear (5) engages with driving gear (4) and fixed gear (11) simultaneously; Planet carrier (6) is fixed on pinion gear (5), and planet carrier (6) is connected with the output shaft (8) of retarder (2).The pinion gear of the retarder of motor of the present invention only moves between active internal gear and fixed gear, and by planet carrier, the moment of rotation of bent axle is passed to output shaft, load suffered on the gear teeth of pinion gear is alleviated greatly, improves reliability and the durability of retarder.
Description
Technical field
The present invention relates to retarder field, especially, relate to a kind of retarder of motor.
Background technique
Retarder is the independently type closed driving device between prime mover and working machine, is used for reducing rotating speed and increasing torque, to meet need of work.At present, in reciprocating engine, the kind that retarder adopts mainly contains gear reducer, worm reducer and planetary reducer.Wherein, gear reducer and worm reducer exist that volume and weight is large, power transimission scope is little, efficiency is low and the defect of the aspect such as axial dimension is large.There is the problem of complicated structure in planetary reducer, and due to the planet carrier size of planetary reducer comparatively large, easily cause the centrifugal load of planet wheel bearing comparatively large, the problems such as damage planet wheel bearing.
Summary of the invention
The object of the invention is the retarder providing a kind of motor, to solve the technical problem that existing retarder power transimission scope is little, efficiency is low and axial dimension is large.
For achieving the above object, the invention provides a kind of retarder of motor, comprising: driving gear, pinion gear, planet carrier and fixed gear, driving gear is connected with the bent axle of motor; Fixed gear is sleeved in driving gear, and be provided with spacing between the outer wheel face of fixed gear and the interior wheel face of driving gear, fixed gear is connected with the casing of retarder; Pinion gear is arranged between driving gear and fixed gear, and pinion gear engages with driving gear and fixed gear simultaneously; Planet carrier is fixed on pinion gear, and planet carrier is connected with the output shaft of retarder.
Further, the shaft axis of bent axle and the shaft axis of output shaft overlap.
Further, the foreign steamer wall of pinion gear is provided with wandering star external tooth, and the foreign steamer wall of fixed gear is provided with fixing external tooth, and the interior wheel wall of driving gear is provided with the first active internal tooth, and wandering star external tooth engages with fixing external tooth and the first active internal tooth simultaneously.
Further, planet carrier is connected with pinion gear by pinion gear pin, and planet carrier is connected with output shaft by spline.
Further, retarder also comprises fixing tooth wheel hub, the first end of fixing tooth wheel hub is provided with gear hub internal tooth, and gear hub internal tooth and the engagement of fixing external tooth, fixed gear is fixed on the casing of retarder by the second end of fixing tooth wheel hub.
Further, retarder also comprises driving tooth wheel hub, and driving gear is fixed on driving tooth wheel hub, driving tooth wheel hub is also provided with the gear hub external tooth be enclosed within driving gear; Driving gear is also provided with the second active internal tooth, the second active internal tooth engages with gear hub external tooth; Driving tooth wheel hub is connected with bent axle.
Further, the joint of driving tooth wheel hub and bent axle is provided with an installation cavity, is provided with a bearing in installation cavity; The center of fixed gear is provided with installation through hole, and the outer end of installing through hole is provided with a bearing; The first end of output shaft is arranged on the bearing in installation cavity, and the second end of output shaft through installing through hole, and is connected with the bearing installing through hole outer end.
The present invention has following beneficial effect:
1, the retarder of motor of the present invention is owing to arranging bent axle and output shaft on the same axis, and namely both concentrics, make the structure of this retarder simple, easy for installation, greatly reduce moment loss.
2, the pinion gear of retarder of the present invention only moves between active internal gear and fixed gear, and by planet carrier, the moment of rotation of bent axle is passed to output shaft, load suffered on the gear teeth of pinion gear is alleviated greatly, improves reliability and the durability of retarder.
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 retarder of the motor of the preferred embodiment of the present invention.
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.
See Fig. 1, a kind of retarder 2 of motor, comprising: driving gear 4, driving tooth wheel hub 7, pinion gear 5, planet carrier 6, output shaft 8, fixed gear 11 and fixing tooth wheel hub 13.The power of motor 9 is delivered on retarder 2 through bent axle 10, after retarder 2, by the output shaft 8 of retarder 2 by transmission of power to propeller cavitation 1.The bent axle 10 of motor 9 arranges on the same axis with the output shaft 8 of retarder 2, namely: the shaft axis of bent axle 10 and the dead in line of output shaft 8, simplify the structure of this retarder 2 with this, and makes this retarder 2 easy for installation, greatly reduces moment loss.
The first end of driving tooth wheel hub 7 is connected with bent axle 10, and rotates with bent axle 10.Driving gear 4 is installed at second end place of driving tooth wheel hub 7.Driving gear 4 comprises the first active internal tooth 41 and the second active internal tooth 42, and this first active internal tooth 41 and the second active internal tooth 42 are all arranged on the interior wheel face of driving gear 4.Preferably, driving gear 4 is a cylindrical tube, and the first active internal tooth 41 of driving gear 4 and the second active internal tooth 42 are arranged on the inwall of cylindrical tube.Second end place of driving tooth wheel hub 7 is provided with gear hub external tooth 71, and gear hub external tooth 71 is enclosed within driving gear 4, and this gear hub external tooth 71 engages with the second active internal tooth 42 of driving gear 4.Driving tooth wheel hub 7 first end the joint of bent axle 10 is provided with an installation cavity 72, this installation cavity 72 is provided with a bearing, for installing output shaft 8.In other embodiments, driving tooth wheel hub 7 without the need to arranging gear hub external tooth 71, also without the need to arranging the second active internal tooth 42 on driving gear 4, directly can be connected with driving gear 4 by driving tooth wheel hub 7.
Fixed gear 11 comprises fixing external tooth 111, and this fixing external tooth 111 is arranged on the foreign steamer wall of fixed gear 11.Fixed gear 11 is a cylindrical body, and fixed gear 11 is sleeved in driving gear 4, is provided with spacing between the outer wheel face of fixed gear 11 and the interior wheel face of driving gear 4.Fixed gear 11 is connected with the casing 12 of retarder 2 by fixing tooth wheel hub 13, and the interior wheel wall of the first end of fixing tooth wheel hub 13 is provided with fixing tooth wheel hub internal tooth 131, and this fixing tooth wheel hub internal tooth 131 engages with the fixing external tooth 111 of fixed gear 11.Second end of fixing tooth wheel hub 13 is fixed on the casing 12 of retarder 2.As other embodiment, also can be provided with spline at the first end of fixing tooth wheel hub 13, fixing tooth wheel hub 13 is fixedly connected with fixed gear 11 by spline.Second end of fixing tooth wheel hub 13 is fixed on the casing 12 of retarder 2.The center of fixed gear 11 is provided with installs through hole 112, for output shaft 8 through this fixed gear 11.Preferably, a bearing is provided with, for installing output shaft 8 in the outer end of installing through hole 112.
Pinion gear 5 is arranged between driving gear 4 and fixed gear 11, and the foreign steamer wall of pinion gear 5 is provided with wandering star external tooth 51.Initiatively internal tooth 41 and fixing external tooth 111 engage the wandering star external tooth 51 of pinion gear 5 with first simultaneously.Like this, the pinion gear 5 that rotarily drives of driving gear 4 rotates around same axle, and this rotates to be the revolution of pinion gear 5; Meanwhile, because pinion gear 5 is arranged between driving gear 4 and fixed gear 11, and fixed gear 11 non rotating, therefore, pinion gear 5 can around self axle rotation.Planet carrier 6 is connected with pinion gear 5 by pinion gear pin 3, and planet carrier 6 is connected with output shaft 8 simultaneously.Preferably, by spline joint between planet carrier 6 and output shaft 8, with the problem that the centrifugal load of the bearing avoiding planet carrier 6 is excessive; There is the benefits such as compact structure, transmission efficiency high power range be large, easy to maintenance simultaneously.Therefore, due to rotation and the revolution of pinion gear 5, planet carrier 6 can be driven to pivot, and planet carrier 6 drive output shaft 8 to rotate together, thus carrying screws 1 turn.In other embodiments, planet carrier 6 without the need to being connected by pinion gear pin 3, and directly can be fixedly connected with pinion gear 5 or both be made into one with the connection with pinion gear 5 by planet carrier 6.
The first end of output shaft 8 is arranged on the bearing in installation cavity 72, and the second end of output shaft 8 is connected with the bearing installing through hole 112 outer end after installing through hole 112.
The working procedure of the retarder of motor of the present invention is:
Motor 9, by bent axle 10 output speed, drives Zhu Dong Chi Lun Valley 7 to rotate; Zhu Dong Chi Lun Valley 7 drives driving gear 4 to rotate; Driving gear 4 drives pinion gear 5 to rotate by gears meshing.Pinion gear 5 and fixed gear 11 engage each other, and rotate around fixed gear 11.Like this, pinion gear 5 rotates around fixed gear 11 and drives planet carrier 6 to rotate by pinion gear pin 3; Planet carrier 6 drives output shaft 8 to rotate, and propeller cavitation 1 and output shaft 8 together rotate simultaneously, and direction is consistent with bent axle 10 sense of rotation.
Wherein the reduction speed ratio of retarder 2 is:
Therefore, the reduction speed ratio of different demand can be determined by the number of teeth arranging different driving gears and fixed gear.
The retarder 2 of motor of the present invention, by the difference of the number of teeth on driving gear 4 and pinion gear 5, reaches the effect of deceleration.And pinion gear 5 only moves between driving gear 4 and fixed gear 11, and by planet carrier 6, the moment of rotation of bent axle 10 is passed to output shaft 8, load suffered on the gear teeth of pinion gear 5 is alleviated greatly, improves reliability and the durability of retarder.
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 (4)
1. the retarder of a motor, for in reciprocating engine being also the independently type closed driving device between reciprocating engine and working machine, it is characterized in that, comprise: driving gear (4), driving tooth wheel hub (7), pinion gear (5), planet carrier (6), output shaft (8), fixed gear (11) and fixing tooth wheel hub (13)
Described driving gear (4) is connected with the bent axle (10) of described motor (9);
Described fixed gear (11) is sleeved in described driving gear (4), be provided with spacing between the outer wheel face of described fixed gear (11) and the interior wheel face of described driving gear (4), described fixed gear (11) is connected with the casing of described retarder (2);
Described pinion gear (5) is arranged between described driving gear (4) and described fixed gear (11), and described pinion gear (5) engages with described driving gear (4) and described fixed gear (11) simultaneously;
Described planet carrier (6) is fixed on described pinion gear (5), and described planet carrier (6) is connected with the output shaft (8) of described retarder (2);
Described fixed gear (11) comprises fixing external tooth (111), and described fixing external tooth (111) is arranged on the foreign steamer wall of described fixed gear (11);
Described fixed gear (11) is connected with the casing (12) of described retarder (2) by described fixing tooth wheel hub (13), the interior wheel wall of the first end of described fixing tooth wheel hub (13) is provided with fixing tooth wheel hub internal tooth (131), and described fixing tooth wheel hub internal tooth (131) is engaged with the fixing external tooth (111) of described fixed gear (11);
Second end of described fixing tooth wheel hub (13) is fixed on the described casing (12) of described retarder (2);
The first end of described driving tooth wheel hub (7) is connected with described bent axle (10), and rotates with described bent axle (10);
Described driving gear (4) is installed at second end place of described driving tooth wheel hub (7);
Described driving gear (4) comprises the first initiatively internal tooth (41) and the second active internal tooth (42), and described first active internal tooth (41) and described second initiatively internal tooth (42) is all arranged on the interior wheel face of described driving gear (4);
Second end place of described driving tooth wheel hub (7) is provided with gear hub external tooth (71), described gear hub external tooth (71) is enclosed within described driving gear (4), and described gear hub external tooth (71) engages with described second active internal tooth (42) of described driving gear (4);
Described bent axle (10) and described output shaft (8) are arranged on the same axis;
Wherein, by the difference of the number of teeth on described driving gear (4) and described pinion gear (5), the effect of deceleration is reached; And described pinion gear (5) only moves between described driving gear (4) and described fixed gear (11), and by described planet carrier (6), the moment of rotation of described bent axle (10) is passed to described output shaft (8), load suffered on the gear teeth of described pinion gear (5) is alleviated greatly, improves reliability and the durability of retarder.
2. the retarder of motor according to claim 1, is characterized in that,
The foreign steamer wall of described pinion gear (5) is provided with wandering star external tooth (51), and described wandering star external tooth (51) is engaged with described fixing external tooth (111) and described first active internal tooth (41) simultaneously.
3. the retarder of motor according to claim 2, is characterized in that,
Described planet carrier (6) is connected with described pinion gear (5) by pinion gear pin (3), and described planet carrier (6) is connected with described output shaft (8) by spline.
4. the retarder of motor according to claim 3, is characterized in that,
Described driving tooth wheel hub (7) is provided with an installation cavity (72) with the joint of described bent axle (10), and described installation cavity is provided with a bearing in (72);
The center of described fixed gear (11) is provided with installs through hole (112), and the outer end of described installation through hole (112) is provided with a bearing;
The first end of described output shaft (8) is arranged on the bearing in described installation cavity (72), second end of described output shaft (8) through described installation through hole (112), and is connected with the bearing of described installation through hole (112) outer end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110316029.7A CN102506127B (en) | 2011-10-18 | 2011-10-18 | The retarder of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110316029.7A CN102506127B (en) | 2011-10-18 | 2011-10-18 | The retarder of motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102506127A CN102506127A (en) | 2012-06-20 |
| CN102506127B true CN102506127B (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110316029.7A Active CN102506127B (en) | 2011-10-18 | 2011-10-18 | The retarder of motor |
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| CN (1) | CN102506127B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201531567U (en) * | 2009-09-16 | 2010-07-21 | 黄仁华 | Planetary gear reducer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5472386A (en) * | 1994-05-26 | 1995-12-05 | United Technologies Corporation | Stacked compound planetary gear train for an upgraded powertrain system for a helicopter |
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- 2011-10-18 CN CN201110316029.7A patent/CN102506127B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201531567U (en) * | 2009-09-16 | 2010-07-21 | 黄仁华 | Planetary gear reducer |
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| Publication number | Publication date |
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| CN102506127A (en) | 2012-06-20 |
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Address after: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee after: China Hangfa South Industrial Co. Ltd. Address before: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee before: China Southern Airlines Industry (Group) Co., Ltd. |
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