SU1747985A2 - Stand for testing motor-gear boxes - Google Patents

Abstract

Use: for running in and testing one pair of gearmotors. SUMMARY OF THE INVENTION 1 The bench contains a planetary gear 2, a reversing loading device and a load meter. The reversing loading device includes a power cylinder 15, the rod 16 of which is connected to the rocker 18, one shoulder of the latter with carrier 19, the other with slider 21 in the form of a shaft corner levers 24, 25 have the opportunity to contact with the ends of the shank and the slide 21, others - with a load gauge. The motor gearboxes under test are kinematically connected with shafts 11.12 of gear 2 4 sludge.

Description

The invention relates to mechanical engineering, namely to testing equipment, can be used when running and testing one pair of gear motors and is an improvement of the known device.

The aim of the invention is to expand the range of load meters used.

Figure 1 shows the proposed stand; Fig. 2 is a kinematic layout of the stand; FIG. 3 is a kinematic scheme with a compression dynamometer; figure 4 - the slider with shanks, levers and rocker in isometric.

The proposed stand contains a base 1, a planetary gear 2, a reversing-loading device 3 and a meter 4 of the load.

On the base 1, the body 5 of the planetary gear 2 is fixed, on either side of which the devices 6, 7 are mounted.

for fixing the tested motor-reducers 8.9, including the electric motors 10 included. The planetary gear has two output shafts 11, 12, on which the couplings 13, 14 are fixed for connection with the tested motor-gearboxes 8 and 9.

The reversing loading device 3 includes a cylinder 15 fixed to the housing 5, the rod 16 of which is connected by a hinge 17 with a rocker 18, one arm of which is connected to the planet carrier 19 of the planetary gear 2 by means of a leash 20, and the second shoulder is connected to a slider 21 made in the form of the shaft. For connection with the slider 21 on the yoke 18, a groove 22 is formed, covering the groove 23 located in the central part of the slider 21.

Two double-shouldered (angular) levers 24, 25 are pivotally connected to the body 5, one of the arms of which has the ability to interact with the ends 26, 27 of the shanks 28, 29 and the ends 30, 31 of the slide 21.

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The shanks 28, 29 are made in the form of two-speed shafts, which are 32, 33 steps of smaller diameter, located symmetrically relative to the central groove 23, attached to the ends 30, 31 of the slide 21, parallel flats 34, 35 are made at the ends 26, 27 steps of a larger diameter, perpendicular to the main parallel flats 36, 37 at the ends 30, 31 of the slide 21. The distance between the flies 34.35 of the shanks 28.29 are the same and equal to the diameters of the steps 32, 33,

The shoulders of the double-shouldered arms 24, 25 encompass steps 32, 33 of the shanks 28, 29 with slots 38, 39, and their other shoulders are connected to a load meter 40 (41).

The slider 21 is mounted in guides 32, 43 so as to rotate around its longitudinal axis using a roller 44 and a handwheel 45. To lock the rotation of the slider 21 with shanks 28, 29, a lock 46 is installed on the handwheel 45.

As a load meter in the test bench, either a tension dynamometer 40 or a compression dynamometer 41 connected to the reversing loading device 3 using the portal 47 is installed.

The stand is operated as follows.

Two test gear motors 8 and 9 are installed and secured on devices 6.7 with their simultaneous connection using couplings 13, 14 with output shafts 11, 12 of planetary gear 2.

With the inclusion of the electric motor 10, the gearmotor 8, 9 starts to run without load. The supply of compressed air alternately into both cavities of the power cylinder 15 creates a reversible load on the rocker 18, from which the force is transmitted through the carrier 19 of the planetary gear 2 to the tested gearmotors 8 and 9, and through the slider 21, the shanks 28, 29 and levers 24, 25 - on the load meter 40 (41).

When the slider 21 according to FIG. 2 is applied, the ends 30, 31 of the slider 21 can interact with the arms 24, 25, which ensures the transfer of the load of tension

load meter 40 (stretch dynamometer). Here, the ends 26, 27 of the shanks 28, 29 bounded by the flats 34, 35 freely pass through the slots 38, 39 of the arms 24,

25

When the slider is rotated 90 ° to a position in which the ends 30, 31 of the slider 21 can freely pass in the slots 38, 39, the force is transmitted to the levers 24, 25 by means of the ends 26, 27. This ensures the transfer by the levers 24, 25 of effort compression meter load 41 (compression dynamometer), as shown in FIG. The use of the slider, shanks, rocker arms and two-arm levers of the design described above in the stand expands its technological capabilities, since it allows using tensile dynamometers as a load meter.

and dynamometers squeeze.

In addition, the use of a "rotary slide with shanks with displaced pairs of bald spots allows, when it is rotated by an angle smaller than the angle of displacement of pairs of bald heads,

Claims (1)

cage measuring system, which increases the durability of dynamometers. Claims for testing motor-reducers according to auth.St. No. 1580203, distinguished, and and with the fact that, in order to expand the range of used load meters, the slider is made in the form of a shaft with a groove in the center and is also installed with the possibility of rotation around an axis in the body of the planetary gears, shaft ends are made with parallel flats, the stand is equipped with two shanks, each of which is made in the form of a two-speed shaft, a step of smaller diameter attached to the end of the ram and its diameter is equal to the distance between the flats of the latter; flats perpendicular to the main and distance between which is equal to the diameter of the smaller step, and the second shoulder of the rocker arm and one shoulder of the double-arm levers are made with a groove, covering respectively the groove of the slide and the step of smaller diameter each shank. to Jv 13 p1- /four Etr / n w V 1L H / id