Planetary gear overrun clutch

Abstract

The invention provides a planetary gear overrun clutch. The planetary gear overrun clutch comprises an overrun clutch body (10), wherein the overrun clutch body is provided with a planetary gear input stage (40), a planetary gear output stage (50), and a coupling assembly (32;45) capable of changing the degree of freedom of the input stage; the planetary gear output stage is composed of two sun gears, the two sun gears are connected to a planet carrier and a gear ring of the input stage, when torque input by the input stage of the planetary gear works in the non-constraint working mode at thecoupling assembly, reverse resistance generated by the inner gear ring and driving torque generated by the planet carrier are transmitted to the output stage (50) to be compound, the planetary gear meshed with the two sun gears acts on the gear ring of the planetary gear to cause the gear ring of the output stage, the planetary gear and the planetary carrier are mutually locked, the working modeof the planetary gear is converted into one degree of freedom from two degrees of freedom, the driving torque is output from a shaft extension end of the planet carrier, and vice versa. According to the planetary gear overrun clutch, the gears in the separation and bonding process are all in an engaged state, so that no gap exists between the overrunning clutch when being separated, and a friction-free transmission torque function is combined.

Description

technical field [0001] The invention relates to an overrunning clutch, in particular to a planetary gear overrunning clutch, which is a clutch transmission device for making the speed of a slave in mechanical transmission exceed the speed of a master, and belongs to the technical field of mechanical transmission. Background technique [0002] In the process of realizing the present invention, the inventor found that the common overrunning clutches in the prior art have the following problems. The existing mechanical transmissions are used to separate and combine the overrunning clutches of the driven machine and the driving machine. A technical solution for torque transmission between frictional parts. The common overrunning clutch is to rely on the wedge-shaped parts of the special wedge-shaped structure arranged on the active transmission shaft and the passive transmission parts under the action of friction to lock the active and passive parts to each other so that the clu...

AI Technical Summary

Problems solved by technology

With this technical solution, when the torque to be transmitted is greater, the pressure on the wedge-shaped component will be greater, making it difficult to separate the master and slave machines when overrunning. Due to the special wedge-shaped angle structure of the wedge-shaped component, once the wear exceeds the design requirements The angle will cause the clutch to be difficult to combine or even slip, resulting in high heat and inevitable ablation, wear and damage, which will have adverse effects on production, use and maintenance. The application of clutches to large and medium-sized mechanical equipment forms technical obstacles

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