SU974186A1 - Stand for testing gimbal gear - Google Patents

Description

one

The invention relates to mechanical engineering, in particular to testing equipment, and can be used in testing cardan gears according to a closed loop scheme.

A stand for testing cardan gears according to a closed-loop scheme, containing gearboxes connected to the same branches of the tested gears, a support accommodated in it with the possibility of rotation of intermediate shafts for connecting 1 other branches of the tested gears, is known for moving the perpendicular to the axis of the intermediate shafts 1.

The disadvantage of the stand lies in the fact that it does not imitate the operation of the cardan transmission of a front-wheel-drive vehicle, in which the hinge angle of a hinge is formed as a result of two movements: one is formed when the wheels are turned by a pin while the steering is in oscillation.

The closest to the invention to the technical essence is a steid for testing cardan gears according to the closed loop scheme, containing a frame, designed to be attached to the same branches of the gears being gears, one of which is fixed to the frame, connected to the last drive, the support dispersed in it can be rotated spans, intended to connect other like-named branches of the tested gears, the bracket and mounted on it can be rotated around an axis, perpendicular to second plane of arrangement of the intermediate shaft frame.

In the indicated stand, a bracket and another gearbox are mounted on the bed stationary, but, and the support is fixed on the frame in the direction perpendicular to the axis of the intermediate shafts 2.

Claims (2)

The disadvantage of this stand is that the mobile gearbox, during operation of the stand, has great mixes and cannot carry them out at a rapid pace 39 due to the excessive inertia forces arising from this. This circumstance makes it necessary to carry out tests of gears at low speeds, changing the angle in the hinges, the RxiTopbie turn out to be noticeably less than the speeds, the HMcionyix place in real exotutate conditions. The purpose of the invention is to bring the test conditions closer to reality. This goal is achieved by the fact that in stand d, the test section for cardannual transmissions according to a closed loop scheme, containing a stand intended to be connected to the same branches of the tested gears, a stor, one of which is locked on the frame, connected to the next-to-end drive, support, razmes.enn, e in it with the possibility of a gate intermediate shafts, designed for connecting; 1-ё1ш other similar branches of gear, krono, tein and ryadleplepnuyu on it with nozmoshtoyo turn around the main, perpend kul p1: th plane shaft, frame 1 crown ggsyn and other gearbox installed on the frame with the ability to move {along the axis of the output shafts mounted on the frame of the gearbox, the support is mounted on the frame with the ability to move in IncHHfi, the perpendicular axis of the X shaft, and the stand is equipped with and tangles, sharn but connected with frame n Cornusamn reducers. On fng. 1 shows a general view of the stand; in fig. 2 is a view A of FIG. 1. Sgsnd contains frame I, gearboxes 2 and 3, beds with the same branches of test gears 4 and 5 and 6 and 7, the other branches of which are connected to the gots pro / 1) with precise shafts 8 and 9, which can be turned into IQ support, fitting JieuHoft on frame 11 with the possibility of moving in the direction perpendicular to the axis of the intermediate shafts 8 and 9, using a hydraulic cylinder 1.2. Kroshteynte 13 and gearbox 3 are placed on frame 1 with the aiocTbio movement along the main output saiiOB of the replacement of gearbox 2 connected to the drive 14. Frame 1 i is mounted on the bracket 13 and can be rotated around an axis perpendicular to the plane of the slide shaft 1). 9, with the help of a hydrostroke. 15 and Sharpir are connected by rods 16 and 17, 18 and 19 with the gearbox bodies 2 and 3, corresponding to C: the trend works as follows. After switching on the drive, the .4 shafts and its 4 x 4-speed drive gears begin to rotate. The loader establishes the required torque in a closed loop formed by the impressed cardan gears 4, 5, 6 and 7 and gearboxes 2 and 3. The hydraulic cylinder 12 is turned on, under the action of which the support 10 begins to perform a reciprocating motion relative to the frame 11, imitating changes in angles in cardan joints, gears 4, 5, 6 and 7 tested, taking place on a real car when its suspension is working. The hydraulic cylinder 15 is turned on, which informs the frame: 11 swinging movement relative to the bracket 13, simulating a change in the angles of the universal joints of gears 4, 5, 6 and 7 being tested, similar to the one they have on a real car when turning the controlled wheels. At the same time, the gearbox housing 3 and the bracket 13, being connected by shanks 16, 17, 8 and G9 to the housing of the fixed gearbox 2, make reciprocating motion relative to the bed 1, thereby ensuring the constancy of the shafts of the cardan gears 4, 5, b and 7 during the operation of the stand during the swinging movement of the frame 11. Such a design of the stand allows, when testing cardan gears, a decrease in the amplitudes of the movements of the gearbox 3 and the bracket 13, as well as the resulting Inerdi forces, and increase their speed, changes of angles in the tested drive shafts and, thereby, bring the test conditions closer to real. Claims for testing cardannas (x gears according to the closed loop scheme, containing a stand, intended to be attached to the same branch of the fixed gears gearboxes, one of which is fixed on the stand, connected to the last drive, a support, placed the intermediate shafts designed to rotate in order to connect the other branches of the tested gears of the same name, the brackets and installed on them with the possibility of rotation around an axis perpendicular to the plane of the H1-III intermediate Alov, frame, characterized in that, in order to bring the test conditions to real, the arm and other gearbox are mounted on the frame with the possibility of alternation along the axis of the output shafts mounted on the gearbox base, the support is mounted on the frame with the possibility of movement in the direction perpendicular to the axis m intermediate shafts, 5 and the stand is equipped with rods, pivotally connected with the frame and gearbox housings. Sources of information taken into account during the examination 74186 1. UK Patent K 1371362, cl. G 01 M 13/02, 1974. 2.Closed loop. Magarine of Mechanical Testing; June, 1980. Published by MTB 5 Systems Corporation, c. 11 (prototype). llf 17 g i tf