CS242200B1 - Straight forward frontal gearbox - Google Patents

Abstract

The solution concerns a backlash-free preloaded spur gearbox with absolute measurement of the angle of rotation of the output shaft. The transmission consists of an input pinion of the gearbox, which is in engagement with the input wheels of two mutually torsionally preloaded transmission branches. The branches consist of spur gears, which are closed into a closed kinematic loop by means of output pinions, which are in engagement with a common output wheel of the gearbox. The torsional preload is output by a torsion element at the input of one of the transmission branches. The gearbox is also equipped with a position sensor fixed firmly on the gearbox body.

Description

242200

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a zero-free pre-tensioning head gearbox with absolute metering of the output shaft.

Harmonic and worm gearboxes, where zero control is required for stability and precision control, does not provide a complete clearance. When defining a dude to a certain value, the transmission efficiency of the transmission decreases proportionally. Gearboxes with eccentric wheel shaft mounts, where the distance between the axle distance is limited, also have a markedly reduced efficiency and uneven torque transmission due to inaccuracy in production. Another common undesirable property of the named gear is their relative high moment of inertia, the reduced input side of the gear, which significantly increases the performance requirements for servo motors. Another disadvantage of the harmonics is their relatively low rigidity.

The essence of the free-wheeled forward gearbox with absolute metering of the angular rotation of the output shaft is as follows: the transmission consists of a gearbox input pinion B which engages the input wheels C, J of two mutually prestressed transmissive transmission lines I., II. spur gears that lock into a closed kinematic loop through the output pinions H, O, both of the transfer branches, which are coupled to the common output gear of the gearbox I. - positioned between the input wheel C of one of the transfer branches and the pinion. The wheel C is rotatably mounted on the shaft D. Between the branches I, II, there is a space for the position sensor Q, which is firmly attached to the gearbox body A, sensing the magnitude of the angular rotation of the output shaft R of the gearbox. to duplicate the equipment functions: power functions - power transmission of the pinion input pinion B to the output wheel shaft R - and the sensor function - to sense angular rotation of the output shaft R.

The new and higher effects of the free-wheeling front-end gearbox with absolute angular rotation of the output shaft are as follows: The torsional predetermination of the transfer branches I, II is guided by the elastic element PR located between the input wheel C, the transfer branch I., which is rotatably mounted on the shaft P, the pinion D, and the pinion. The team will achieve a complete delimitation of the sidewheel for all gearwheel pairs. ClenPR allows for a smooth pre-setting of the transmission pre-load up to the maximum permissible limit of the gearbox output. Since the definition of the duct is flexible, the inaccuracy of the production of the dowel and the wheel bearing does not result in a discontinuous transmission of power - the wheel bearing is calculated with a certain clearance in an unsavory state. , allows it to perform its performance as well as sensing function. Since the video multistage transmission, the total inertia torque reduced to the transfer input is also very low.

FIG. 1 shows a particular embodiment of a non-winding pretensioner with an absolute metering of the swivel angle of the output shaft. The input pinion B 1, which is mounted on the drive shaft, is coupled to the input wheels C 2, J 9 of the transfer branches I, II, which form a pair of coils B 1, C 2; D 3, 4; 5, 6; H 7, I 8 (I. i B 1, j 9; K 10, L 11; 12, 13; O 14, I 8 (v. II. J. Wheel I 8 is the output wheel of the gearbox. Wheel C 2, which is pivotally mounted with respect to the P 13 shaft of the pinion gear 3 by a resilient element PR 16, whereby when the pinion B 1 is inserted into the engagement wheels of the transfer springs, a complete resilient definition of all the pairs of co-engaging wheels is provided. are the wheels C 2 and J 9. The output sprockets of the transmission branches - the pinion H 7a of the pinion O 14 - are engaged with the output gear of the gearbox which is provided with a front internal toothing for the purpose of achieving a higher gear ratio. fixedly secured to the gearbox body A 0 is located within the body and senses the angle of rotation of the output wheel 18 and thereby the output shaft R 17, relative to the gearbox A 0. The gearbox is an arrangement in which the gearbox output gear is part of a driven gear member, or the gear wheel is fixed and rotates the gearbox satellites A0 with the motor as part of the driven member of the driven device.

Claims (4)

242200 PREDMET 1. A free-wheeling pre-frontal gearbox, with an absolute angle measurement of the output shaft, characterized in that it consists of a branch I with a torsion spring member (16) and a branch II of which the input wheels (2, 9) are in the engagement with the inlet pinion (1) and the outlet pinion (7, 14) engaging the outlet wheel (8), the inlet wheel (2) being rotatable on the shaft (15). 2. A biased forward gear, with absolute metering of the output shaft angular displacement according to claim 1, characterized in that the transfer branch I is provided with a torsion spring member (16) which connects the input wheel (2) to the pinion (3) co-engaged with the wheel (4) mounted on the common shaft with the pinion (5) and engaging the wheel (6) fixedly mounted on the shaft of the output pinion (7) which engages the output wheel ( 8). THE INVENTION 3. Straightforward pre-biased front axle transmission with absolute metering of the output shaft angular displacement according to items 1 and 2, characterized in that the transmission line II. consists of an input wheel (9) co-engaged with the input pinion (1) and which is on a common shaft with a pinion (10) which engages with a wheel (11) mounted on a common shaft with a pastor (12) which engages a wheel (13) mounted on a common shaft with a pinion (14) engaging the output wheel (8). 4. Non-freely biased front gear, with absolute metering of the output shaft angular displacement according to items 1, 2, 3, characterized in that a position sensor (18) is disposed between the shaft output pinion (14) and the output pinion shaft (7). ). 1 sheet of drawings