SU1091049A1 - Stand for investigating excavating parts of earth-moving machines - Google Patents

Abstract

STAND FOR THE STUDY OF WORKING ORGANS OF DIGGING MACHINES, including a frame with a horizontal shaft mounted on it, perpendicular to the arms attached to the shaft with working parts and a container with the material being developed, so that, with the aim of increasing the accuracy determining the degree of wear of the working bodies; levers with working bodies are fixed on diametrically opposite sides of the shaft with displacement between them along the shaft, while the stand is equipped with a shaft rotation drive.

Description

11 The invention relates to bench studies of the working bodies of mounted-type rippers. Known bench equipment with horizontal movement of the working body on the basis of the T-100 crawler tractor. The tool is mounted on a strain gauge trolley. On the stand, the research of the parameters of the working bodies directly in field conditions is carried out. С1 The disadvantage of this stand is the considerable material costs necessary for experimental studies. Closest to the present, there is a stand for examining the working bodies of earth-moving machines, including a frame with a horizontal shaft mounted on it, perpendicularly mounted on the shaft, levers with working bodies and a container, with the material being developed. The disadvantage of the known stand is the low accuracy of determining the degree of wear of the working bodies, for example, loosening tips. The purpose of the invention is to improve the accuracy of determining the degree of wear of working bodies. This goal is achieved by the fact that in the test bench for the working bodies of the earth moving machines, comprising a frame with a horizontal shaft mounted on it, perpendicularly fixed levers on the shaft with the working bodies 14И and a container with the material being developed, the levers with working bodies are fixed on the diametrically opposite sides of the shaft offset between each other along the fork, while the stand is equipped with a shaft rotation drive. Figure 1 shows the stand, a general view of; FIG. 2 is a section A-A in FIG. f i in FIG. 3 - section BB in FIG. (After one of the tips of the working member passes through the ground); figure 4 - the same, with the destruction of the soil by another tip; Fig. 5 shows the same, after the passage of the second tip. The stand for examining the working bodies of semper raspberries consists of container 1, with supports 2 with a shaft 3 arranged horizontally on the upper section. A shaft 4 is mounted on the shaft 3, on the outer surface of which the levers 5 and 6 are fixed with models of working rippers 7 and 8. Moreover, 49 the levers 5 and 6 are located relative to shaft 3 on diametrically opposite surfaces and are offset relative to each other along the shaft axis 3 for the distance determined by the ratio L- (8-10) B, where L is the distance between the levers, MMJ B is the width of the tip of the ripper under study, mm. On the working bodies of the rippers 7 and 8, the spindle tips 9 and 10 are mounted. On hub 4, an asterisk 11 is fixed by a chain 12 connected to an asterisk 13 mounted on the output shaft of the gearbox 14, while the gearbox 14 is connected to the electric motor 15. & Im material 16, for example - crushed stone. The sleeve 4 is connected to the shaft 3 by means of the pin 17 through the Hole 18. The stand tests are carried out as follows. On the working bodies of the rippers 7 and 8, the tested loosening tips 9 and 10 are installed, which are weighed before. Then the electric motor 15 is turned on, after which the movement is transmitted through the gearbox 14-, the chain drive 11 13 and. sleeve 4 on shaft 3. Initially, one ID of tips is inserted into simulated material 16, for example, tip 9. After exit of tip 9 from medium 16, a trace of interaction of tip 9 with material 16 remains in it (FIG. 3). Then, another loose tip 10 is inserted into the material 16. Due to the fact that the levers 5 and 6 are displaced along the axis of the shaft 3 to the distance L, the material 16 is simultaneously destroyed by the tip 10 and the material 16 moves from the tip 10 in the direction of the slit made previously tipped 9, the material falls asleep this slot. After the exit of the tip 10 from the material 16, the tip 9 re-enters the work, the backfill of the slot made by the tip 10. The working cycle of the stand is repeated. After the required number of cycles established by the research program, the lugs 9 and 10 are dismantled and subjected to the necessary measurements. The location of the levers 5 and 6 at a distance L, which is determined by the ratio 1, (8-10) V, allows the material 16 to be reused,

3 1091049. four

to increase the versatility of the bench area, the use of the invention to improve equipment and to determine the degree of measurement accuracy and reduce the wear of working bodies. Thus, the timing of the research.

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General Staff

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Claims (1)

STAND FOR RESEARCH OF WORKING BODIES OF EARTHING MACHINES, including a frame with a horizontal shaft mounted on it, levers with working bodies perpendicularly mounted on the shaft and a container with the material to be developed, distinguishing with the aim of increasing the accuracy of determining the degree of wear of working bodies, levers with working bodies are fixed on diametrically opposite sides of the shaft with offset along the shaft, while the stand is equipped with a shaft rotation drive. figure 1 ι t;