Differential leveling mechanism for hydrological flow measurement platform and leveling method

Abstract

The invention discloses a differential leveling mechanism for a hydrological flow measurement platform and a leveling method. The differential leveling mechanism is characterized in that a suspension cable is changed from a vertical direction to a horizontal direction through a first guide wheel, a second guide wheel, a third guide wheel and a fourth guide wheel, and is respectively wound to the outer side of a winding drum through a fifth guide wheel, a sixth guide wheel, a seventh guide wheel and an eighth guide wheel, a push motor is arranged at one end of an electric push rod, and sliding groove guide rails are arranged on the two sides of a lug plate. In the leveling process, one end of the left end and the right end of the platform rises, and the other end of the platform descends, so that the horizontal movement distance of the differential leveling winding drum is half of the height difference of the left side and the right side of the platform, the stroke amplification effect is achieved, and large-range leveling can be achieved through the electric push rod with the small stroke; and in the leveling process, the stress on the left side and the right side of the winding drum is basically balanced, so that the push rod only needs to overcome friction force and inertia force theoretically, the leveling power is very small, and an efficient and energy-saving leveling mode is achieved.

Description

technical field [0001] The invention relates to the technical field of hydrological equipment, in particular to a differential leveling mechanism and a leveling method for a hydrological flow measuring platform. Background technique [0002] There is a certain sag in the main cable during the cableway erection process, which causes a certain degree of inclination of the hydrological flow measurement platform originally in a horizontal state at a certain distance from the starting point. The inclination of the box not only affects the accuracy of the hydrological test, but also poses certain safety hazards. During the testing process of the hydrological flow measurement platform, the lifting operation will be carried out frequently. Due to the choice of the winding method of the suspension cable, the irregularity of the winding coil of the steel wire rope obtained by the shaft diameter of each winding makes it impossible to wind evenly, and then the hydrological flow measurem...

AI Technical Summary

Problems solved by technology

The inclination of the box not only affects the accuracy of the hydrological test, but also poses certain safety hazards

During the testing process of the hydrological flow measurement platform, the lifting operation will be carried out frequently. Due to the choice of the winding method of the suspension cable, the irregularity of the winding coil of the steel wire rope obtained by the shaft diameter of each winding makes it impossible to wind evenly, and then the hydrological flow measurement platform hangs. The inconsistency of the slings, when the span of the cableway is small, the inclination is small, which does not affect the test, but when the span is large, during the operation of the hanging box, due to the weight of the steel wire cableway itself and the hanging box, the cableway presents an arc During the operation of the hanging box, the whole hanging box is in a tilted state. In this tilted state, hydrological personnel are in a dangerous state when performing flow measurement operations, which increases the difficulty of the operation and greatly increases the risk factor.

Images