TH33057A - Asymmetric helical gear unit - Google Patents

Abstract

An asymmetrical swirl gear assembly features a swirl gear wheel composed of three integrated components: a small side roller, a gear wheel, and a large side roller. Similarly, the inner toothed gear has a small side ring, a gear wheel, and a large side ring integrated into a single unit. The main gear shaft can be inserted or removed from the assembly after completion. The small main gear results in a high reduction ratio. This device is suitable for use as a speed reducer in electric washing machines.

Claims (3)

1. An asymmetric helical gear assembly consisting of a helical gear wheel (2), an inner gear wheel (3) surrounding the helical gear wheel (2), and a shaft (4) consisting of an open secondary shaft (4B) and an open primary shaft (4A) that holds the helical gear wheel (2) in a way that allows it to rotate on the shaft axis (5). This shaft is designed so that the helical gear wheel (2) is a single, unified component consisting of the helical gear wheel (6), a small side roller (7) with a diameter smaller than the cone circle of the teeth of the helical gear wheel (6) located on the side closest to the secondary shaft (4B), and a large side roller (8) with a diameter larger than the cone circle of the teeth of the helical gear wheel (6) located on the other side closest to the primary shaft (4A). The inner gear wheel (3) consists of the inner gear wheel (6) The main gear (12), the small side ring (13) with a diameter smaller than the circle of the tooth crests of the main gear (12), and the large side ring (14) with a diameter larger than the circle of the tooth crests of the main gear (12), and by which all the swirling gears (2) surround a central space into which the shaft of the main gear can be inserted or removed after the assembly is complete. 2. An asymmetric helical gear set consisting of a set of primary gears (35), a set of helical gears (2) meshing with the primary gear (35), an inner gear (3) enclosing the helical gear (2), and a shaft (4) consisting of an open secondary shaft (4B) and a primary shaft (2), and a shaft (4) consisting of an open secondary shaft (4B) and a primary shaft (4A) with an outer hole, which is fitted to the helical gear (2) in a way that allows it to rotate on the shaft axis (5). This is defined as the helical gear (2) being a single, composite part consisting of the helical gear section (6) and small side rollers (7) with a diameter smaller than the concentric circle of the helical gear section (6), which are located on the side closest to the shaft (4B). The large side ring (8), which has a diameter larger than the circle of the teeth of the spur gear (6), is located on the other side closer to the main drive body (4A). The inner gear (3), which consists of the gear wheel (12), the small side ring (13) which has a diameter smaller than the circle of the teeth of the inner gear wheel (12), and the large side ring (14) which has a diameter larger than the circle of the teeth of the inner gear wheel (12), and the retainer (37) of the drive body (4), holds the main gear (35) within the central space (28) which is enclosed by the spur gear (2). 3. An asymmetrical swivel gear set as claimed in either claim(1) or(2), in which the drive shaft has been replaced by an extension of the secondary drive shaft(4B) or the primary drive shaft(4A) which has a grease trap provided between the side of the teeth of the inner gear wheel and the side of the large side roller(8) (3 claims, 2 pages, 7 figures).