Spraying arm lifting device of vehicle-mounted distribution equipment

Abstract

The invention discloses a spraying arm lifting device of a vehicle-mounted distribution equipment, and belongs to the field of vehicle-mounted distribution equipment. The spraying arm lifting device comprises a first lifting mechanism and a second lifting mechanism, the bottom of a first speed reducer in the first lifting mechanism is connected with an inner sleeve, the inner sleeve is connected with an outer sleeve in a sliding mode, a vertical output shaft of the first speed reducer is a lead screw, the inner sleeve and the outer sleeve are both arranged outside the lead screw in a sleeving mode, the lead screw is connected with a screw nut in a matched mode, the screw nut is fixed to the bottom of the outer sleeve and is locked by a nut after penetrating out of the bottom of the outer sleeve, a connecting pipe is arranged at the bottom of the outer sleeve, the screw nut is fixedly connected with the connecting pipe, a connecting ear plate connected with a spraying arm is arranged on the outer wall of the connecting pipe, the horizontal output shaft of the first speed reducer is coaxially and fixedly connected with a transmission shaft, and the second lifting mechanism is the same as the first lifting mechanism in structure. According to the spraying arm lifting device, a servo motor is controlled according to acquired away-from-ground height parameters, the lead screw and the screw nut are driven by the worm and gear speed reducer, the away-from-ground height value of the spraying arm is adjusted in real time, the sameness of the away-from-ground height of the spraying arm is guaranteed, and then the distribution quality is guaranteed.

Description

technical field [0001] The invention relates to the field of accessories of vehicle-mounted distributing equipment, in particular to a lifting device for the spraying arm of the vehicle-mounted distributing equipment. Background technique [0002] Both the asphalt distribution vehicle and the surface sealing vehicle belong to the category of vehicle-mounted distribution equipment. They are equipped with thermal insulation containers, pumps, heaters and spraying systems. During construction operations, the heaters heat the medium in the thermal insulation container to the construction temperature. The pump pumps the medium in the container to the spraying system, and spreads it evenly on the road surface through the uniformly distributed nozzles on the spraying arm. It is mainly used for preventive maintenance, penetration layer, sticky layer, on-site mixing of mixture, asphalt stabilized soil, etc. Construction and maintenance works. [0003] The characteristic of the intel...

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Problems solved by technology

[0006] In order to make up for the deficiencies of the existing technology and solve the problem that the height value of the nozzle to the ground in the actual operation of the vehicle-mounted spraying equipment is constantly changing, resulting in uneven thickness of asphalt on the road surface, and even streams, which affect the quality of the road surface. A vehicle-mounted spraying equipment spraying arm lifting device

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