High-reliability unidirectional technology characteristics

Technical characteristics:

1. A highly reliable unidirectional device, characterized by comprising: a hollow shaft having a first inner peripheral surface, a second inner peripheral surface adjacent to the first inner peripheral surface, and a The first stepped surface at the connection position of the second inner circumferential surface, the first inner circumferential surface is provided with a first oblique spline, and the diameter of the first inner circumferential surface is smaller than the diameter of the second inner circumferential surface Drive shaft, the drive shaft has an adjacent first outer circumferential surface, a second outer circumferential surface and a second stepped surface located at the connection position of the first outer circumferential surface and the second outer circumferential surface, the first outer circumferential surface Is provided with a second oblique spline, the diameter of the first outer peripheral surface is smaller than the diameter of the second outer peripheral surface, the number of the second oblique spline is the same as that of the first oblique spline, and the first oblique spline The two oblique splines can be slidably fitted with the first oblique splines, the first inner peripheral surface is slidingly sleeved on the first outer peripheral surface, and the diameter of the second outer peripheral surface is larger than the first inner peripheral surface According to the principle of the first outer peripheral surface, one end of the second stepped surface is provided with a first annular groove, a wire retaining ring is clamped and fixed in the first annular groove, and the first stepped surface restricts the wire The retaining ring enters the area of the first inner peripheral surface. 2. The high-reliability unidirectional device according to claim 1, wherein the high-reliability unidirectional device further comprises a sleeve and a roller, one end of the sleeve is open, and the sleeve The open end of the barrel is sleeved on the hollow shaft, and a plurality of accommodating grooves arranged in a circular array are formed between the inner peripheral surface of the sleeve and the outer peripheral surface of the hollow shaft, each of the accommodating grooves Each includes a first connecting section and a second connecting section that are sequentially connected in the circumferential direction of the hollow shaft, the thickness of the first connecting section is smaller than the thickness of the second connecting section, and the number of rollers is more than one. Each of the rollers is built into the plurality of accommodating grooves in one-to-one correspondence, and when the rollers move to a position close to the first connecting section, the rollers and the accommodating grooves are in interference fit, When the roller moves to a position away from the first connecting section, the roller is in clearance fit with the accommodating groove. 3. The high-reliability unidirectional device according to claim 2, wherein the high-reliability unidirectional device further comprises an elastic member, and there are a plurality of the elastic members, and the plurality of the elastic members One-to-one correspondence is built in a plurality of the first connecting sections, and one end of each elastic member is connected to the roller. 4. The high-reliability unidirectional device according to claim 2, wherein the high-reliability unidirectional device further comprises an outer cover, and the outer cover is coaxially buckled with the open end of the sleeve . 5. The high-reliability unidirectional device according to claim 4, wherein the high-reliability unidirectional device further comprises a gasket and a gasket, and the gasket and the gasket are laminated and sandwiched between the Between the outer cover and the open end of the sleeve. The high-reliability unidirectional device according to claim 5, wherein a gear shaft is fixed on the side of the sleeve away from the outer cover. The high-reliability unidirectional device according to claim 6, wherein a shift fork retaining ring is sleeved and fixed on the second outer peripheral surface.

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