pumping equipment

Abstract

The invention provides a pumping device which comprises a frame and a pumping unit arranged on the frame. The pumping unit is hinged onto the frame and forms three hinge axes perpendicular to a vertical plane, wherein the three hinge axes include a first axis, a second axis and a third axis, the first axis is positioned at a first end of the frame, the second axis and the third axis are positioned in the middle of the frame, and the second axis and the third axis are respectively provided with only one hinge joint. The three hinge axes form a triangle, and assembly accumulation errors of the pumping unit can be eliminated by changing the angle alpha of the triangle. In addition, as the second axis and the third axis are respectively provided with only one hinge joint, over-positioning of the pumping unit is avoided, internal stress is eliminated, and assembly manufacturability and interchangeability are improved.

Description

technical field [0001] The invention relates to the field of pumping slurry materials such as concrete, in particular to a pumping device. Background technique [0002] In the prior art, the supporting and fixing structures of the pumping unit mainly include figure 1 and figure 2 Both are shown. Such as figure 1 As shown, the two sides of the hopper of the pumping unit 1 are connected to the sub-frame 3 through the hopper fixing bolts 2, and the water tank flaps are fixed on both sides of the water tank 4 of the pumping unit 1, and the water tank flaps are fixed on the auxiliary frame through the fixing bolts 5. On the water tank mounting seat on the vehicle frame 3. [0003] However, with this fixed connection method, since the water tank flange is welded on the water tank, its position and angle accuracy are low due to the influence of positioning accuracy and welding deformation, so that when the pumping unit 1 is installed, it is necessary to adjust the water tank m...

AI Technical Summary

Problems solved by technology

Same as the first method, when the two mounting pins on both sides of the water tank are not equal in height, it is easy to cause the pumping unit to be distorted; in addition, the water tank is hinged on the sub-frame 3 through the mounting pin 7, and the deformation of the sub-frame 3 And the vibration will still be completely transmitted to the water tank installation pin 7, reducing the coaxiality of the pumping unit; again, the hopper end is double-hinged suspension. However, the water tank end is fixed by the installation pin, so it cannot swing and move synchronously, and the pumping unit will be twisted and deformed, which will reduce the coaxiality and reduce the service life of key components such as pistons, oil cylinders and concrete cylinders.

[0007] In summary, none of the supporting and fixing structures of the pumping unit in the prior art can adapt to the size error and assembly error of the pumping unit components, which easily leads to the deformation of the pumping unit

It is also impossible to isolate the deformation and vibration of the subframe 3. The deformation and vibration of the subframe 3 will be directly transmitted to the pumping unit, which may also cause deformation of the pumping unit.

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