Thick slurry pump and pumping system thereof

Abstract

The invention discloses a pumping system which comprises a power cylinder (1), a conveying cylinder (2), a support bracket (3), a piston rod (6) and a concrete piston (4), wherein the piston rod (6) is provided with a first oil duct (7), the concrete piston (4) is provided with a second oil duct (8) which is communicated with the first oil duct (7) and runs through the outer circumferential wall of the concrete piston (4); a lubricating oil tube (5) which is communicated with the first oil duct (7) and moves with the piston rod (6) is arranged on the piston rod (6) between a first vertical plate (31) of the support bracket (3) and a second vertical plate (32) of the support bracket (3). The structural design of the thick slurry pump can enable the concrete piston (4) to be lubricated by the lubricating oil in the conveying cylinder (2) in the whole moving process, thus the lubricant reliability can be improved and then the service life of the concrete piston (4) and the conveying cylinder (2) can be improved. Besides, the invention also discloses a thick slurry pump with the pumping system.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a pumping system. In addition, the present invention also relates to a thick slurry pump comprising the pumping system. Background technique [0002] The thick slurry pump is a kind of equipment that transports thick slurry such as concrete or mortar to the required position of the construction project. With the rapid development of my country's economic construction, the demand for thick slurry pumps is also increasing. [0003] Please refer to figure 1 and figure 2 , figure 1 It is a structural schematic diagram of a pumping system of a thick slurry pump in the prior art, figure 2 for figure 1 Cutaway view of the pumping system. [0004] Such as figure 1 As shown, the pumping system of the thick slurry pump in the prior art includes power cylinder 1', delivery cylinder 2', support frame 3', concrete piston 4', hopper, S pipe valve, reversing device and s...

AI Technical Summary

Problems solved by technology

[0006] This kind of lubrication method can only lubricate the concrete piston 4' when the concrete piston 4' retreats to the lubrication point at the end of the delivery cylinder 2', and when the concrete piston 4' moves in the delivery cylinder 2', it cannot The concrete piston 4' provides lubricating oil, so the lubricating oil sprayed on the concrete piston 4' is continuously consumed until there is no more (because the stroke of the concrete piston 4' in the delivery cylinder 2' exceeds 2.2 meters), so it cannot be timely and effectively The concrete piston 4' provides lubrication, resulting in dry friction between the concrete piston 4' and the delivery cylinder 2'.

Dry friction between the concrete piston 4' and the conveying cylinder 2' will greatly reduce the service life of the concrete piston 4' and the conveying cylinder 2'

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