A swing mechanism, a pumping system, and concrete equipment

Abstract

Disclosed is a swing mechanism of a pumping system, which mechanism comprises a rocker arm (1) and a box (2) having a cavity. The rocker arm (1) comprises a swinging part (11) alternately driven by a left hydraulic oil circuit and a right hydraulic oil circuit, and a rotary part (12) fixedly connected to the swinging part (11) and provided on a hopper. The rocker arm (1) is located within the cavity and divides the cavity into a separate left cavity (21) and right cavity (22). The left and the right sides of the swinging part (11) are in communication with the left hydraulic oil circuit and the right hydraulic oil circuit via the left cavity (21) and the right cavity (22) respectively, and the rotary part (12) is connected to the box (2) by way of circumferential rotation. The swinging part (11) of the rocker arm (1) is directly driven by hydraulic oil, and the hydraulic energy is all converted into motive mechanical energy of the swinging part (11), so as to be able to reduce the power of a power source driving the movement of the rocker arm (1), thus saving energy, with a simple structure and occupying little space. In addition, also disclosed are a pumping system and concrete equipment comprising the swing mechanism.

Description

technical field [0001] The invention relates to the technical field of pumping, in particular to a rocking mechanism of a pumping system. In addition, the present invention also relates to a pumping system and concrete equipment comprising the rocking mechanism described above. Background technique [0002] Concrete pumping equipment is a machine 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 pump trucks. , tow pump, 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 a state transition, and the delivery cylinder is connected to the hopper within a predetermined first...

AI Technical Summary

Problems solved by technology

[0007] First, in the swinging process of the pendulum valve cylinder in the prior art, the angle between the pendulum valve cylinder and the rocker arm 4' cannot always be kept at 90 degrees, so the thrust of the pendulum valve cylinder cannot be 100% converted into the rocker arm 4' Swing power, serious energy loss, low transmission efficiency, resulting in relatively high cost of construction machinery

[0008] Second, the ball joint ends of the swing valve cylinder, the swing valve seat 1' and the rocker arm 4' are difficult to process, easy to wear and require frequent lubrication, and the materials used for the spherical bearing 3' are relatively expensive, and the cost of use is relatively high

[0009] Third, the piston rod of the pendulum valve cylinder is exposed to the outside, which requires additional components such as a protective cover, which increases the cost of use

[0010] Fourth, there are many components that make up the swing mechanism, the structure is complicated, and the cost is relatively high

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