SU1343281A1 - Device for investigating slippage of tracked vehicle - Google Patents

Abstract

The invention relates to the testing of vehicles and provides a simplification of the design and an increase in the accuracy of the measured parameters. The device contains a loading mechanism, including a tank 3 installed on the external support, filled with Hyvi fluid, immersed in it, also filled with a second tank 2, which is suspended on cables, one of which is connected through a system of blocks with counterparts 4, and the other with a track 1 of a tracked vehicle, and a recording mechanism. When a vehicle is moving, the force from its hook is transmitted to the cable, which, through the system of blocks, draws a capacity of 2 ng (capacity 3. Odkvgemenno recording of the theoretical and actual vehicle slipping by the recording mechanism takes place. From these curves, the vehicle slippage factor is determined. 3 Fig. 51 (L co; co to 00 fw2. /

Description

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H-ioOjii i is moving towards rjiaficHOp suppurative testing.

The goal and: and: 1bretei - simplification of the CONS1RUCTION and increase the accuracy of the measured paramehr.

ia of FIG. 1 shows a diagram of the loading mechanism; in fig. 2 is a diagram of a recording mechanism; Fig. 3 shows the recording of curves for determining the slip ratio.

The device contains the frame of the vehicle 1, connected by a cable through a system of blocks with capacity

2, filled with liquid and immersed in a container filled with liquid

3, mounted on an external support. Capacity 2 is also connected by cable with counterweight 4.

The drive wheel of the crawler vehicle via gear 5 is connected to a shaft 6 having a trapezoidal thread with a 1st nut 7 located on it, on which a recording rod is fixed. The shaft 8 with a trapezoidal thread and a nut 9 located on it and a recording rod has a gesture fixed drum 10 with a cable 11 wound on it, fixedly fixed outside the vehicle. The recording rods, located on rai iKax 7 and 9 shafts 6 and 8, respectively, interact with the recording drum 12, which is separate. drive through the gear 13 from the motor 14 direct current.

The device works as follows.

When the tracked vehicle moves, the rotation from the drive wheel through gear 5 is transmitted to 6, the nut 7 is mixed with the recording rod fixed on it, which records the curve 15 defining the movement of the tracked vehicle on the drum 12. hook from zero to maximum with a zero slip ratio.

At the same time, the force from the vehicle hook is transmitted to the cable, which, through the system of blocks, pulls capacity 2 from capacity 3. The longitudinal section form of capacity 2 sets the law of variation of pulling force on the hook. With a rectangular cross section of the inner container 2 hook

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but (yiMiJiHt luripac i ac t raniomerno. At 1 rapetsoidalyyum longitudinal CE cheipn t MKiui iH with Po pytsim base RFUi-jy k1) LC (11i.i nozrastaet acceleration force, and at the same sechepsh with the smaller base at the bottom a hook force increases slow

By means of the cable 1I, winding-1Q from the drum 10 when the vehicle is moving, the screw 8 is rotated by which the nut 9 moves to the right with the rod fixed on it, recording on the drum 12 the curve 16 of the vehicle slipping corresponding to the specified change the gy on the hook.

When this occurs, a simultaneous 20 rotation of the recording drum 12 occurs. On the graph thus obtained (Fig. 3) along the abscissa axis, parallel to the axis of the recording drum 12, the path S, projected by the vehicle (theoretical - curve 15 and Actually - curve 16), and along the ordinate axis - hook force from zero to maximum.

30 When processing the obtained graphs (FIG. 3), we apply a change in hook force along the ordinate axis from zero to the maximum (maximum corresponds to 100% of G). Through the starting point 35 of the curve 16 we draw a curve 17 parallel to the curve 15 (the recording line of the theoretical path). To determine the coefficient of slippage with a corresponding force on the hook from point A, a straight line is held parallel to the abscissa to the intersection with curves and 16 and 17 (points K and B, respectively). Through point C (the moment of transition of curve 16 to a straight, 45 parallel axis of ordinates and a characteristic stopping of the vehicle at 100% skidding on reaching P, "The ATP also runs straight, parallel to the axis of the axis to 0 intersection with the axis of ordinates C P ,, c, kc

and curve 17 (point D). The ratio of the lengths of the segments KB and DM is calculated, which is equal to the slip coefficient for the segment OA (P „-): s /

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- KV / SL 100%.

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Similarly, the coefficient of slipping is determined ;; l for other F

Claims (1)

Invention Formula An apparatus for inspecting a crawler vehicle slip, comprising a loading mechanism coupled to the vehicle's backbone and a recording mechanism including a drum mounted on a shaft, a cable wound on said drum and fixed at one end outside the vehicle, a driving shaft kinematically coupled to the vehicle's drive wheel, two helical gears, one of which is made on the drive shaft, two recording rods and a second recording drum, different the fact that, in order to simplify the design and to increase the accuracy of the measured parameters, The loading mechanism includes a container mounted on an external support, filled with liquid, immersed in it, and a second container filled with liquid, which is suspended by cables, one of which is connected to counterweights through a system of blocks, the second is connected to the backbone of a tracked vehicle, and the drum for recording, it is equipped with an electric drive, with one of the recording rods fixed on the nut of the screw gear, the screw of which is integral with the drive shaft, and the second recording rod is fixed on the second nut in ntovoy transmission screw which vtolnen integrally with the shaft carrying the drum with a rope. R Fi2.g 14 Oh oh lr S L FIG.