SU767605A1 - Arrangement for testing unloading machines - Google Patents

Description

(54) STAND FOR TESTING UNLOADING The invention relates to test equipment, providing testing of unloading devices, for vehicles carrying out: unloading bulk materials by turning the platform (body) in the vertical plane, and can be used in manufacturing plants x, machine testing stations for technical design testing and monitoring of reliability indicators of dumping equipment, platform unloading devices for. onboard cars, ocs tststvl oschih delivery of bulks. . . A test stand for testing unloading devices is known, comprising a frame for installation by means of pivoting and a non-movable wheel set along it on a platform of the test unloading device. And a load simulator placed on frame 1. . Such a stand is the closest. KIM to the invention according to the technical nature and the achieved result. However, it does not allow golnostyo to reproduce the actual loading mode on the unloading Device, since it does not reproduce the dynamic DEVICE component of the load from the movement of bulk masses in the body of the modeled vehicle. The purpose of the invention is to accurately reproduce the load mode by applying, along with the static dynamic component, the load on the unloading device under test. For this, the load simulator is made in the form of a tank filled with a working medium and divided by vertical partitions into compartments, in the lower parts of which there are valves with automatic actuators connected to the drain line. In order to reproduce the load mode when the unloading device of a laden vehicle is simulated by simulating the mass of the vehicle itself, the load simulator is provided with an additional capacity with no change. . level of working environment. FIG. 1 shows a stand, general view; in fig. 2 - the same in the process of testing. .. The stand for testing unloading devices consists of a frame 1 on which an imitation load 2, made up of a tank, and an additional tank 3 filled with working medium 4 (for example, water) are mounted, as well as a fixed 5 and movable 6 wheel pairs, by which ama 1 relies on the platform 7 of the device under test.

Simulator 2 BepTlHK mounted strong partitions 8 are divided into compartments 9. In the lower part of each compartment there are fixed gate valves, 10 with automatic actuators, with second ends connected to a drain line 11, common to all compartments. Inside the additional tank 3, its vertical partitions 12 are mounted, forming compartments 13. The free end of the drain line 11 is mounted above the tank 14. The tank 14 is equipped with an electrically driven J5 pump and a return line 16, which serves to return the working medium 4 to the simulator 2 when the cycle of operations is repeated .

The stand is mounted on the platform 7 of the test unloading device with the help of wheel pairs 5 and 6 and after filling the compartments 13 of the additional container 3 of the working medium 4, the mass of which is equal to the mass of the simulated vehicle together with the stand design, is ready for operation. ,

The stand works as follows. . By pump 15 on the return line 16, the working medium 4 from the tank 14 is supplied to the compartments 9 of the simulator 2 and TYSINAN it up to a predetermined level. Then the platform of the device under test makes a turn. At the same time, simultaneously with the platform, the valve 10 of the simulator 2 and the working medium 4 from the axis of rotation of the compartment 9 passes into the drain line 11. With the drain line 11, the working medium 4 returns back to yak 14. When the desired angle of rotation of the controller is reached, the valve 10 is turned on the simulator 2 compartment adjacent to the headway, to the working medium 4 from it into the drain line 11. The emptying of both compartments takes place simultaneously. As the platform turns in accordance with the angles set for them, it turns on alternately All the remaining valves 10 in the compartments 9 and the working medium 4 at the time of the 6-minute turning angle of the ppatforyva fully return to 14v. and the platform rotates in the opposite direction to the initial position, which closes the unit test cycle. Further, the test cycle is repeated many times. The operation of the stand is illustrated in FIG. 2, on

which shows the intermediate position of the simulated level of the bulk ruz during its unloading from the vehicle body and the corresponding level of the working medium 4 in each of the compartments 9 and 13 in the same platform position, in compartments 9 of the simulator 2, the mass of the medium is constantly changing one direction, and in the arcs 13 of the additional tank 3 remains unchanged during the full test cycle. Partitions 8 and 12 neglect the change in the level of the working medium 4 in the compartments 9 and 13 formed by them, and the constant movement of the working medium 4 in the simulator 2 and the drain line 11 to reproduce the dynamic component of the load mode. 5 in connection with more accurate; reproducing the load test mode under the conditions of the manufacturer increases the reliability of the results obtained and there is no need to refine the subsequent equipment releases to the results of the collection of data on the failure of the previous one. There is also no need to modernize the elements of equipment by an individual method at the places of operation. The proposed stand provides the specified level of reliability and quality and pos-; Reduces operating costs by 10–15%.

invention formula

1. A test bench for unloading devices comprising a frame for installation by means of movable and

5 fixed wheelsets along the platform to the platform of the unloading device under test and a load simulator placed on the frame, in order to more accurately reproduce the load mode by applying the load to the test unloading device, along with the static dynamic component, the load simulator made in the form of a container filled

5. working medium and divided by vertical partitions into compartments, in the lower parts of which there are backward-mounted backwards with automatic drives;:

0 Stand according to claim 1, of which is, with the aim of reproducing the load mode when overturning by the unloading device of the loaded vehicle

By simulating the mass of the vehicle itself, the load simulator is provided with additional capacity with a constant level of working environment.

Sources of information taken into consideration during the examination,

1. USSR author's certificate in application number 2038621/11, cl. 6 01 M17 / 00, 1974 (prototype). 13 i3if H yu J-J. w / / /

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Claims (1)

Claim 1. A test bench for unloading devices, comprising a frame for installation by means of movable and 35 fixed · wheel pairs along it ”on the platform of the tested unloading device and a load simulator placed on the frame, so that in order to more accurate reproduction of the load ⁴⁰ · mode by application along with the static dynamic component of the load on the tested unloading device, the load simulator is designed as a tank filled with 45. working medium and divided by vertical partitions to compartments, in the lower parts of which there are valves connected to the drain line with automatic actuators ;:, 50 ~ 2 ”Stand according to π, 1, with the fact that, in order to reproduce the load mode when the loaded vehicle unloads overturning device 55 by simulating the mass of the vehicle itself, the load simulator is equipped with additional capacity with a constant level of the working environment. “Sources of information taken into account in the examination, 1. USSR author's certificate according to application No. 2038621/11, cl. G 01 M 17/00, 1974 (prototype). 'Compiled by N. Veyalko