One-stage planetary reduction unit and three-stage planetary reduction driver

Abstract

The invention discloses a first-stage planetary speed reduction unit and a third-stage planetary speed reduction driver. The first-stage planetary speed reduction unit comprises a first-stage planet carrier assembly and a first-stage planet wheel installed in the first-stage planet carrier assembly. The first-stage planet carrier assembly comprises a first-stage rotation supporting disc, a first-stage planet wheel disc and a first-stage planet shaft arranged on the first-stage planet wheel disc. The first-stage rotary supporting disc is fixedly connected with a first-stage planet wheel disc through a connecting column, a first-stage planet wheel mounting space is formed between the first-stage rotary supporting disc and the first-stage planet wheel disc, and a first-stage planet wheel is mounted on the first-stage planet shaft in the first-stage planet wheel mounting space; and a second-stage sun gear is arranged on the first-stage planetary gear disc. The first-stage speed reduction unit is independent, then the driver is integrally assembled, the assembling efficiency is improved, and meanwhile the first-stage planetary speed reduction unit can be independently replaced and debugged; according to the planetary speed reduction driver, the primary speed reduction unit adopts an independent assembly structure, and the positions of all parts are kept relatively stable, so that abnormal sound caused by assembly error accumulation in the prior art is avoided, and a foundation is provided for stably transmitting power to the next stage.

Description

technical field [0001] The invention belongs to a transmission device, and in particular relates to a one-stage planetary reduction unit and a three-stage planetary reduction driver which are suitable for smart homes and drive automatic flipping of smart home products with covers. Background technique [0002] With the development of the economy and the improvement of people's living standards, people's requirements for bathroom appliances and even household appliances are getting higher and higher, and intelligent and automated products are becoming more and more popular in today's market. Therefore, the intelligent automation of smart toilets, smart dishwashers, sinks, and washing machines is getting higher and higher today, and the automatic flip function is one of the functions of smart toilets, smart dishwashers, smart sinks, and smart washing machines. One of the manifestations. [0003] There are quite a few electrically driven flip buffers with drive covers on the m...

AI Technical Summary

Problems solved by technology

However, most of the automatic flip gearboxes on the market have high friction between the motor, the reduction gearbox and its rotating shaft, the transmission ratio is high, the noise is loud, and the gears are easily damaged, resulting in a relatively low overall life of the gearbox (less than 10,000 times of opening and closing). , the failure rate of the product is high, and at the same time, the volume of the existing electric drive flip buffer is relatively large, and the installation takes up a large space

[0004] For this reason, the applicant has developed a smart home electric drive flip buffer with small size, large output torque, compact structure, low friction, low noise, stable operation, long service life, and quick opening and slow falling functions. For details, see, CN108980288A; however, the assembly efficiency of this kind of electric drive clamshell buffer is low in actual assembly, and there is still room for optimization in the overall structure, so as to further reduce frictional resistance, ensure relatively stable transmission parts, reduce noise, and prolong service life

[0005] Specifically, the prior art (CN108980288A) uses a three-stage planetary deceleration mechanism for electric drive flip buffers; when assembling, it is necessary to place each transmission member (each stage of planetary gear, planetary carrier) in a certain order with the three-stage planetary deceleration mechanism Assembling one by one, the efficiency is low; moreover, there are no restrictions and constraints in the axial direction between the reduction units of each stage, which makes it difficult to determine the relative position of the transmission components during the assembly process, and is prone to jamming or abnormal noise; in addition, the existing technology Independent gaskets are used to reduce the friction between adjacent ones, but the independent gasket structure has no fixed constraints, and it is impossible to realize the independent overall assembly of each planetary reduction unit. As the power source, the first-stage planetary reduction unit, if the reduction unit is installed The installation error will directly affect the error of the two-stage and three-stage deceleration units, which will lead to the accumulation of installation errors, causing the problems of unstable operation and high noise of the deceleration mechanism; for this reason, the present invention provides a single-stage deceleration unit that can be replaced and debugged independently. The planetary reduction unit, and the three-stage planetary reduction drive installed with the first-stage planetary reduction unit

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