Rocker structure, bobbing mechanism, pumping system and engineering machine

Abstract

A rocker structure and a bobbing mechanism of a pumping system, a pumping system, and an engineering machine. The rocker structure (13) comprises a first swinging part (131) and a second swinging part (132) arranged along a rotating axis direction of a rotating part (133). A left swinging valve oil cylinder (11) and a right swinging valve oil cylinder (12) are respectively connected to the first swinging part (131) and the second swinging part (132), so that the left and right swinging valve oil cylinders (11, 12) can be arranged in two different vertical planes, thus flexibly arranging the components of the bobbing mechanism. Therefore, the kinetic moment of the bobbing mechanism during the swinging process is reasonably distributed; the moment value of the rocker structure (13) gradually decreases from the starting to the termination, thereby preventing the bobbing mechanism from becoming incapable of swinging and reducing the reversing impact force; the impact on a distribution valve and the like is reduced; the vibration of the bobbing mechanism, the distribution valve, and the pumping system is alleviated; the wearing of the parts is reduced and the service life of the parts is prolonged.

Description

technical field [0001] The invention relates to the technical field of pumping, in particular to a rocker arm structure. In addition, the present invention also relates to a swing mechanism, a pumping system and a construction machine including the above-mentioned rocker arm structure. Background technique [0002] Concrete pumping equipment is a kind of construction machinery that uses pressure to continuously transport concrete along pipelines. It is mainly used in house construction, bridge and tunnel construction, etc. It is a commonly used mechanical equipment in construction machinery. Common concrete pumping equipment includes concrete pumps Vehicles, tow pumps, etc. [0003] Concrete pumping equipment usually includes a delivery cylinder, a hopper, a distribution valve and a swing mechanism, the hopper is used to store concrete; the distribution valve can be driven by the swing mechanism to perform state conversion, and the delivery cylinder and the swing mechanism ...

AI Technical Summary

Problems solved by technology

[0009] First, when there is too much gravel in the concrete material in the hopper and the ratio is relatively poor, the starting torque is relatively small, which will easily lead to the phenomenon that the swing mechanism will not swing after a period of time;

[0010] Second, when the swing mechanism starts to rotate to about 35 degrees, the torque of the swing mechanism reaches the maximum. However, at this time, the distribution valve has already swung and does not need a large torque, which is easy to cause waste of torque;

[0011] Third, the termination torque is greater than the starting torque, and the commutation impact is relatively large, which is easy to cause wear of various parts

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