SK1452015U1 - Dual two-stage gear with output reverse shaft - Google Patents

Abstract

A two-stage gear with one input shaft (1) and one back coaxial output shaft (2), which is based on an eccentrically mounted gear (3), is designed to produce a wide range of gear ratios to change the output speeds.

Description

Two-speed transmission with one return output

Technical field

The technical solution of the new two-stage transmission with one input and one return coaxial output shaft belongs to the areas of transmission mechanisms with the possibility of application for both power and kinematic transmissions. The proposed gear can achieve a gear ratio in a wide range of values, from fast to very large gear ratios for speed reduction.

Prior art

At present, there are no known transmission mechanisms for coaxial return output based on the principle of the proposed technical solution. For the design of transmission mechanisms of similar kinematic and force parameters, known principles based on conventional transmissions are currently available, such as e.g. spur, bevel, helical, helical aplanate gears, which are more complex solutions for gear ratios requiring more than two-speed gears and which, in addition, would have relatively greater demands on space and weight than the new two-speed gear solution.

The essence of the technical solution

The essence of the technical solution lies in a new solution of integration of two single-stage gears in order to transform the movement from the input to the output shaft of the transmission.

The first gear stage is a transmission formed by an internal gear with external gearing and mounted eccentrically on an input shaft engaging with the internal gearing of the fixed ring gear.

The second gear stage consists of a further co-engagement of two gears, namely another gear ring centric fixedly connected to the inner impeller, which engages a gear centric fixedly connected to the output coaxial shaft with a return output with respect to the input shaft. The transmission mechanism can be balanced, either by fixed or rotary tying suitably applied to the rotating parts of the transmission.

Overview of pictures in the drawing

A two-speed transmission with one internal impeller with one input and one return coaxial output is schematically shown in a vertical sectional view in two alternative solutions with respect to the co-engagement of the gears in the second gear stage in Fig. 1 and Fig.2.

Example of embodiment

An example of a two-speed transmission with an internal impeller with a return output is a gearbox in which a gear wheel 3 is rotatably and eccentrically mounted in a bearing U on the input shaft 1, which engages with its toothing 4 with an internal toothing 5 mounted in the transmission. housing 13. The gear 3 rotates eccentrically and rotatably on the shaft 1, its movement being transformed into a rotational centric movement of the return coaxial output shaft 2 via a co-engagement of the gearing of the inner gear 2 fixedly connected to the gear 3 with a gear 8 fixedly connected to the return output coaxial shaft 2; or in a second alternative solution, the movement on the return output coaxial shaft 2 is transformed from an eccentric and rotatably mounted gear 3 on the shaft 1 mounted in a bearing 11 via a co-engagement of an external gear 14 fixedly connected to the wheel 3 with an internal gear 15 fixedly connected to the return coaxial shaft. 2 mounted in both alternative solutions together with the input shaft 1 in the bearings 9. The whole mechanism is balanced by a fixed balance 12.

Industrial applicability

The above-mentioned solution of the new two-stage gearbox with return output can be used in gearboxes and drive mechanisms in various machines and in instrumentation in a wide industrial area, both for power transmission of power and speed as well as for kinematic gears. The transmission can be designed for both multiplication and reduction of output speeds over a wide range of gear values - from small to very large gear ratios between input and output shaft, with relatively less space and weight requirements compared to conventional solutions. .

Claims (2)

Requirements for protection A two-speed transmission with an internal device located in the gearbox, characterized in that a gear wheel (3) with external gearing (4) is rotatable and eccentrically arranged on the input shaft (1) and engages with the internal toothing (5) of the gearbox (13). ), while at the same time the inner toothing (7) of the gear wheel (3) engages with the outer toothing (8) of the return output shaft (2) for forced centric rotation of the return output shaft (2). 2. A two-speed transmission with an internal device located in the gearbox, characterized in that the gear wheel (3) with external gearing (4) is rotatable and eccentrically located on the input shaft (1) and engages with the internal gearing (5) of the gearbox (13). ), while at the same time the outer toothing (14) of the gear wheel (3) engages with the inner toothing (15) of the return output shaft (2) for forced centric rotation of the return output shaft (2).