SU1237832A1 - Crank mechanism with flexible connecting rods - Google Patents

Description

The invention relates to mechanical engineering, namely to gears of rotation on several parallel shafts, and can be used, in particular, in construction and mining equipment, as well as in gears operating in aggressive environments,

The purpose of the invention is to increase the reliability and simplify the design by eliminating hinges.

FIG. 1 shows a mechanism with three shafts placed in different levels of a top view of f in FIG. 2 - the same, kinematic scheme; in fig. 3 is a kinematic diagram of a mechanism with two shafts, the center-to-center distance between which is less than the length of the crank in FIG. 4, the same, top view.

The mechanism contains a base 1, shafts 2, 3 and 4 located in it, each having two cranks 5 and 6, 7 and 8, 9 and 10 of the same length. All cranks are pairs, t, e. 5-7, 5-9, 7-9, 6-8, 6-10, 8-10, linked between

are flexible rods in the form of endless belts 11 (belts) of the same length and form at least three paralle-programs (3-6-8-7, 5-6-10-9, 7-9-10-8) „12 cranks covered by one tape 11 must have the same diameters.

The mechanism works as follows.

During rotation from the drive (not shown) of the drive shaft 2, the movement is transmitted through endless belts 11, spanning spikes 12 in pairs of corresponding cranks along the surface of spikes 12, moving them in the direction of rotation for a circumference of spikes 12 for one revolution of shafts 2, 3 and 4 make synchronous rotation. The slippage of the strips 11 is excluded by the condition of equality of the diameters of the studs 12, covered by one tape 11, and the equal length of the curvature of the tape.

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Editor T. Mitejko

Compiled by V.Savitsky

Tehred O.Gortvay Proofreader A.Obruchar

3271/37

Circulation 880 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Claims (1)

Crank mechanism with flexible rods, containing a base, at least two parallel crank shafts, each with at least two cranks of equal length, and interacting in pairs with cranks of different shafts of connecting rods of equal length, forming at least at least two of them three hinged parallelograms, characterized in that, in order to increase reliability and simplify the design, the connecting rods are made in the form of endless bands covering the crank spikes, and the studs covered by one tape are made with the same and diameters. yo GO m 00 Go 0