CN212177808U - High-precision durable steering engine - Google Patents
High-precision durable steering engine Download PDFInfo
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- CN212177808U CN212177808U CN202020780913.0U CN202020780913U CN212177808U CN 212177808 U CN212177808 U CN 212177808U CN 202020780913 U CN202020780913 U CN 202020780913U CN 212177808 U CN212177808 U CN 212177808U
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Abstract
The utility model belongs to the technical field of the steering wheel and specifically relates to a durable steering wheel of high accuracy, including shell, motor, reduction gears and output shaft, the shell includes casing, well casing and lower casing, first bearing group, second bearing group and third bearing group are installed to the shell, reduction gears includes input shaft gear, first gear, second gear axle, third gear axle and output shaft gear, input shaft gear, first gear, second gear axle, third gear axle and output shaft gear mesh step by step, the shaft hole of first gear cup joints with the axle of third gear axle. The utility model has the advantages that: the third gear shaft adopts integrative design, and the shaft hole of first gear cup joints with the axle of third gear shaft, and the difference in rotational speed of the shaft hole of first gear and the axle of third gear shaft reduces among the gear drive process to reduce the shaft hole wearing and tearing of first gear, prolonged steering wheel life, improved the precision and the reliability of steering wheel.
Description
Technical Field
The utility model belongs to the technical field of the steering wheel and specifically relates to a durable steering wheel of high accuracy.
Background
The steering engine is a servo motor, can give corner angle information through PWM ripples signal, rotates to appointed angle to can keep, bear certain external moment at appointed angle. The steering engine is an important actuating mechanism of a robot, an electromechanical system and a model airplane, and can rotate to different positions according to requirements. The mechanical device consisting of a large number of steering engines can complete complex and accurate actions.
Patent document CN206620008U discloses a dual-shaft synchronous output steering engine, wherein a shaft is rotatably mounted on a housing, a large gear and a small gear are mounted on the central shaft for free rotation, and during the working process, the large gear and the small gear rotate simultaneously, and the surface of the central shaft is seriously abraded after long-time working, which causes poor gear engagement and affects the service life of the steering engine.
SUMMERY OF THE UTILITY MODEL
Based on the above problem, a steering engine that high accuracy is durable is provided.
The utility model provides a durable steering wheel of high accuracy, includes shell, motor, reduction gears and output shaft, the shell includes casing, well casing and casing down, first bearing group, second bearing group and third bearing group are installed to the shell, reduction gears includes input shaft gear, first gear, second gear axle, third gear axle and output shaft gear, input shaft gear, first gear, second gear axle, third gear axle and output shaft gear mesh step by step, the shaft hole of first gear cup joints with the axle of third gear axle.
Preferably, the bull gears of the first gear shaft and the second gear shaft are both located above the lower gear, and the bull gear of the third gear shaft is located below the pinion.
Preferably, the input shaft gear is meshed with a large gear of a first gear, a small gear of the first gear is meshed with a large gear of a second gear shaft, a small gear of the second gear shaft is meshed with a large gear of a third gear shaft, and a small gear of the third gear shaft is meshed with the output shaft gear.
Preferably, the shaft of the second gear shaft is mounted on the first bearing group, the shaft of the third gear shaft is mounted on the second bearing group, and the output shaft is mounted on the third bearing group.
The steering engine with high precision and durability has the following effects:
the third gear shaft adopts integrative design, and the shaft hole of first gear cup joints with the axle of third gear shaft, and the difference in rotational speed of the shaft hole of first gear and the axle of third gear shaft reduces among the gear drive process to reduce the shaft hole wearing and tearing of first gear, prolonged steering wheel life, improved the precision and the reliability of steering wheel.
Drawings
Fig. 1 is a cross-sectional view of the present invention;
fig. 2 is a schematic structural view of the speed reducing mechanism of the present invention;
the figures are labeled as follows:
1-shell, 11-upper shell, 12-middle shell, 13-lower shell, 2-motor, 3-reduction mechanism, 31-input shaft gear, 32-first gear, 33-second gear shaft, 34-third gear shaft, 35-output shaft gear, 4-output shaft, 51-first bearing group, 52-second bearing group, 53-third bearing group.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are used only for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms will be understood by those skilled in the art according to the specific circumstances.
In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being either a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 2, a high-precision durable steering engine comprises a housing 1, a motor 2, a speed reduction mechanism 3 and an output shaft 4, wherein the housing 1 comprises an upper shell 11, a middle shell 12 and a lower shell 13, the housing 1 is provided with a first bearing group 51, a second bearing group 52 and a third bearing group 53, the speed reduction mechanism 3 comprises an input shaft gear 31, a first gear 32, a second gear shaft 33, a third gear shaft 34 and an output shaft gear 35, the input shaft gear 31, the first gear 32, the second gear shaft 33, the third gear shaft 34 and the output shaft gear 35 are meshed in a step-by-step manner, and a shaft hole of the first gear 32 is sleeved with a shaft of the third gear shaft 34.
Preferably, the large gears of the first gear 32 and the second gear shaft 33 are located above the lower gear, and the large gear of the third gear shaft 34 is located below the small gear.
Preferably, the input shaft gear 31 is engaged with a large gear of the first gear 32, a small gear of the first gear 32 is engaged with a large gear of the second gear shaft 33, a small gear of the second gear shaft 33 is engaged with a large gear of the third gear shaft 34, and a small gear of the third gear shaft 34 is engaged with the output shaft gear 35.
Preferably, the shaft of the second gear shaft 33 is mounted on the first bearing group 51, the shaft of the third gear shaft 34 is mounted on the second bearing group 52, and the output shaft 4 is mounted on the third bearing group 53.
The utility model discloses a theory of operation:
the steering engine is electrified to operate, the controller sends a PWM control signal to the motor 2, if the motor 2 rotates forwards, the motor 2 drives the input shaft gear 31 to rotate, the input shaft gear 31 is meshed with a large gear of the first gear 32, the first gear 32 rotates backwards, a small gear of the first gear 32 is meshed with a large gear of the second gear shaft 33, the second gear shaft 33 rotates forwards, a small gear of the second gear shaft 33 is meshed with a large gear of the third gear shaft 34, the third gear shaft 34 rotates backwards, the rotation directions of the first gear 32 and the third gear shaft 34 are the same, the difference between the rotation speeds of the shaft hole of the first gear 32 and the shaft of the third gear shaft 34 is smaller than that of the structure of the patent document CN206620008U, and abrasion of the gear shafts is effectively reduced.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (4)
1. The utility model provides a durable steering wheel of high accuracy, its characterized in that, includes shell, motor, reduction gears and output shaft, the shell includes casing, well casing and lower casing, first bearing group, second bearing group and third bearing group are installed to the shell, reduction gears includes input shaft gear, first gear, second gear axle, third gear axle and output shaft gear, input shaft gear, first gear, second gear axle, third gear axle and output shaft gear mesh step by step, the shaft hole of first gear cup joints with the axle of third gear axle.
2. The steering engine of claim 1, wherein the large gears of the first gear shaft and the second gear shaft are both located above the lower gear, and the large gear of the third gear shaft is located below the small gear.
3. A high-precision durable steering engine according to claim 1, wherein the input shaft gear is meshed with a gearwheel of a first gear, a pinion of the first gear is meshed with a gearwheel of a second gear shaft, a pinion of the second gear shaft is meshed with a gearwheel of a third gear shaft, and a pinion of the third gear shaft is meshed with the output shaft gear.
4. A high precision durable steering engine according to claim 1, characterized in that the shaft of the second gear shaft is mounted on a first bearing set, the shaft of the third gear shaft is mounted on a second bearing set, and the output shaft is mounted on a third bearing set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020780913.0U CN212177808U (en) | 2020-05-13 | 2020-05-13 | High-precision durable steering engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020780913.0U CN212177808U (en) | 2020-05-13 | 2020-05-13 | High-precision durable steering engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212177808U true CN212177808U (en) | 2020-12-18 |
Family
ID=73774927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020780913.0U Active CN212177808U (en) | 2020-05-13 | 2020-05-13 | High-precision durable steering engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212177808U (en) |
-
2020
- 2020-05-13 CN CN202020780913.0U patent/CN212177808U/en active Active
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