SU1399658A1 - Device for testing tyres - Google Patents

Abstract

The invention relates to devices for testing vehicle tires in road conditions and can be used to determine the mechanical characteristics of tires. The aim of the invention is to increase the efficiency of tire tests by reproducing the operating conditions of loading. The device consists of a frame 1 connected by means of a measuring link 2 and a hinge 3 with tons of hook 4 with the possibility of rotation / 23 12 / in the vertical plane. A support 6 with leaf springs 15 with axles 14 for mounting the test wheels 12 and 13 is hinged to the frame. The rack 7 consists of upper and lower parts connected with the possibility of rotation in a plane perpendicular to the axis of the rack and blocking the rotation. Bearing 6 has the ability to rotate in the transverse plane and fix in a predetermined position with the help of struts 11 of variable length. The device is equipped with sensors 17 for linear interleaving of wheels 12 and 13, a zero-level sensor 21. To test tires in a given rolling mode by turning the lower clock-pillar 6 and tilting the wheel struts 11, they are set to the required camber and retract position. In the course of driving along the test section of the road, the tractive effort, the zero level of the road and the vertical movements of the wheels are measured. 1 hp f-ly, 1 ill. / 5 ff - / ff / / J / / / / f (L with co with O5 SP 00

Description

This invention relates to a device for testing vehicle tires in road conditions.

The aim of the invention is to increase the efficiency of testing tires by reproducing the operating conditions of loading.

The drawing schematically shows the proposed device, side view.

The tire tester contains

Lead traction force sensor. In order to reproduce the conditions of motion along the slope, the length of the struts 11 is changed: one is lengthened, the other is shortened. Wheels while cts with the collapse.

When reproducing rolling tires with a release, the locking means 10 is released and the lower part 8 of the rack 6 is rotated to the desired angle on the scale. Then parts 7 and 8 of rack 6 are blocked. Corners

Claims (2)

1. A tire testing device containing a frame with a swivel unit with a tractor, mounted on a frame a support with an axle for fastening the test wheel, a loading device, a device for orientation of the wheel axle and a frame relative to frame 1 upper part 7 of rack 6 and frame 1 are additionally connected . A tire testing device containing a frame with a swivel unit with a tractor, mounted on a frame a support with an axle for fastening the test wheel, a loading device, a device for the orientation of the wheel axle and sensors: 11 variable length, mounted 25, characterized by that, with a view to new from two sides of the rack 6. The wheel of the cart of the device consists of two test wheels 12 and 13, the axles 14 of which are interconnected by leaf springs 15 located on both sides of the wheels 7 and 8. The middle part of the spring 15 is fixed on the bottom 8 of the support stand 6. I Axis 14 is connected to the ring 16, mouth; innovated with the ability to turn on : top 7 of support stand 6, two Challenges of tire testing efficiency by operating conditions reproduction, the device is equipped with an additional axis for fastening the second test wheel and a leaf spring, 30 with the support being made in the form of a rack consisting of upper and lower parts interconnected with each other plane, perpendicular to the axis of the rack, and their upper part of the rack is blocked by supplying displacement sensors 17, located 35 on a ring mounted with two side Oron wheels 12povorota coaxially, hinged on the frame can be rotated in the transverse plane and connected with it additionally by means of spacers of adjustable length, the axis of the test wheels is fixed to the ends of the said leaf spring, the middle part fixed to the lower part of the support column, and are connected by means of two pairs of displacement sensors a ring, a hinged soy-level assembly, made in the form of a lever 45 of the frame's denimline with a pull-out, is made with the possibility of a shoe 23. The upper end of the frame is a possibility of rotating the frame in a vertical plane and equipped with a homing unit, and on the frame in front of the axles for mounting the wheels is placed a zero level sensor, made in the form of a lever, with the upper 50 end hinged to the frame with the ability to touch the lower surface and 13. The loading device consists of a carriage 18 with ballast 19 mounted on frame 1 with the possibility of longitudinal non-Q movement in guides (not shown) made in it. In a predetermined position, the carriage 18 is fixed by means of the stops 20. The device is equipped with a sensor 21. The blade 22 is hinged to the frame 1 and is equipped with a sensor of angular movements (not shown). The device works as follows. By the longitudinal displacement of the carriage 18, the necessary distribution of loads on the wheels 12 and 13 is set. With the help of gauge 4, the device is towed along the measured track. During the Movement, the sensor 21 registers the zero level of the road surface with which the readings of the pairs of sensors 17 of the wheel axle movements (on the road with soft ground) are compared. Simultaneously pe55 these roads and equipped with a sensor of angular displacements. 2. A device according to claim 1, characterized in that the loading device is made in the form of a carriage with a ballast weight, which is movably mounted in the guide frames with the possibility of fixation. Lead traction force sensor. In order to reproduce the conditions of motion along the slope, the length of the struts 11 is changed: one is lengthened, the other is shortened. Wheels while cts with the collapse. When reproducing rolling tires with a release, the locking means 10 is released and the lower part 8 of the rack 6 is rotated to the desired angle on the scale. Then parts 7 and 8 of rack 6 are blocked. Corners tire parameters and operating data. The device can also be used to study the deformability of the soil, the influence of the characteristics of the wheel suspension, the interaction with each other and the effect on the ground of moving one after another sprung wheels. Invention Formula 1. A tire testing device containing a frame with a swivel joint with a tractor, mounted on a frame a support with an axis for fastening the test wheel, a loading device, a wheel axle orientation device and a tire performance test of reproducing operating loading modes, the device is equipped with an additional axis for fastening the second test wheel and the leaf spring, said support being made in the form of a rack consisting of upper and lower parts interconnected by a hinge irregularly with the possibility of rotation in the plane, perpendicular to the axis of the rack, and blocking them, the upper part of the rack is provided with a ring that is installed with the possibility of rotation coaxially with it, is hinged these roads and equipped with a sensor of angular displacements. 2. A device according to claim 1, characterized in that the loading device is made in the form of a carriage with a ballast weight, which is movably mounted in the guide frames with the possibility of fixation.