SU1027351A1 - Drive of working member of earth-moving machine - Google Patents

Abstract

DRIVE OF THE WORKING BODY OF THE DIGGER MACHINE, including razatonny reducer with two output shafts, drive shafts of the sections of the working body and cardan joints 1 with forks, characterized in that, in order to simplify the design of the drive and increase its reliability; Each cardan joint is connected with one fork to the output shaft of the transfer gearbox, a to the drive shaft of the section, while the plugs of one output shaft of the transfer gearbox are set at an angle of 90 relative to the forks of the other output shaft of the transfer gearbox. (L Yu co

Description

The invention relates to earthmoving machinery, and more specifically to their transmission.

The ground drive of the machine is known, including gear reducers and cardan gearing. .five

The disadvantage of this drive v1x; the need to provide equal angles between the intermediate shaft, the drive shaft and the driven shaft, which complicates the drive.

The closest in technical condition to the invention is the pod of the working body of the earthmoving scale, including a transfer cushion with two output shafts, drive shafts of the working body and cardan joints.

A disadvantage of the known drive is the difficulty of the availability of an intermediate shaft with a universal joint supporting a support, a dividing mechanism of 20 meters for equalizing the kink angles of the driveline.

The purpose of the invention is to simplify the design of the drive and increase its reliability.

This goal is achieved by the fact that in the water supply of the working unit of the earthmoving machine, including a transfer gearbox with two output shafts, the drive shafts of the working unit sections and a box (box joints with forks, each universal joint is connected to the output shaft of the transfer gearbox, a friend with a drive shaft section, while the plugs of one output shaft of the transfer gearbox are set at an angle of 90

relative to the plugs of the other output shaft of the transfer gearbox.

FIG. 1 shows the design of a drive of a working member with cardan transmission; w FIG. 2 is a diagram of the cardan transmission of the proposed wire; in fig. 3 is a diagram of the cardan transmission of the known device; in fig. 4 i - the relative position of the cardan forks on the output shaft of the transfer gearbox; in fig. 5 is a graph of the rotational speeds of the drive shafts of the sections of the working member.

The drive of the working body of the earthmoving machine includes a distributing gearbox 1, the output shaft of the distributing gearbox 2, made in the form of the hub of the driven gear 3 and being the last link in the transmission chain from the engine to the working member, driven

the shafts 4 and cardan hinges 5, by means of which the drive shafts 4 are connected to the output shaft 2 of the transfer gearbox {5a 1. The forks of 6 cords belonging to the output shaft 2 of the transfer gearbox are turned relative to each other by 9O and fixed on the inner side the flange of the hub of the output shaft of the distributing gearbox 2. Section 7 of the working tool of the maschine is mounted on stockings 8 with the possibility of rolling relative to the centers of the cardan shafts 5 in a certain area for both sections of the plane. In the same plane are located and the angles of fracture cardan transmission. The stockings 8 are movably fixed on the body 9 of the working body (the mounting structure is not shown), so that the axis of swing of the stockings passes through the centers of the cardan hinges 5. The transfer gearbox 1 is fixedly mounted on the same body 9 as the stockings 8.

The drive of the working body of the earthmoving machine is as follows.

In the process of oscillating the sections of the working body, the overhanging shafts 4 are simultaneously rocked, thus being constantly at a certain angle to the axis of the output shaft, the dispensing gearbox. The angle is variable, but at each moment of time is equal to both shafts. The rotational speed of the driven shaft located at an angle to the shaft leading per revolution, reaches twice the maximum and twice the minimum. The same laws are followed and the drive shafts 4 are considered cardan transmission. If the forks 6 of the drive shafts {L1 groove 5 are parallel, then both drive shafts reach maximum and minimum simultaneously, i.e the shafts rotate synchronously unevenly. As a result, dynamic overloads from the drive shaft, caused by their uneven rotation, are summed up at the output shaft and transmitted to the entire transmission of the car. If the forks are shifted one after another, the maximum speed of one shaft is the minimum speed of the other and vice versa. Due to this displacement, the dynamic overloads on the drive shaft side are completely subtracted, i.e. mutually destroyed on output shaft 2 and not transmitted to other transmission nodes.

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Claims (1)

DRIVE OF THE WORKING BODY OF THE EARTHING MACHINE, including a transfer gearbox with two output shafts, drive shafts of sections of the working body and cardan joints with forks, characterized in that, in order to simplify the design of the drive and increase its reliability, 'each cardan joint is connected with the output shaft by one fork the transfer gearbox, and the other with the drive shaft of the section, while the forks of one output shaft of the transfer gearbox are installed at an angle of 90 ° relative to the forks of the other output shaft of the transfer gearbox. SU „„ 1027351 1 10273512