Concrete mixer mixing shaft sealing mechanism

Abstract

The invention discloses a concrete mixer mixing shaft sealing mechanism which comprises a mixing shaft, the mixing shaft is inserted into a hopper, and a sealing pedestal preventing concrete mortar from seeping along the mixing shaft is arranged on the outer side of the mixing shaft. The concrete mixer mixing shaft sealing mechanism is characterized in that a scraper seal is arranged between the sealing pedestal and the hopper, a seal ring is arranged at one end, far from the hopper, of the sealing pedestal, a water-stop belt used for containing water is arranged between the scraper seal and the seal ring, and the water-stop belt is connected with a water tank through a liquid inlet formed in the sealing pedestal. According to the technical scheme, the concrete mixer mixing shaft sealing mechanism can effectively prevent the concrete mortar from seeping and damaging equipment, carry out effective sealing on the concrete mortar, prolong the service life of a seal structure, reduce maintenance frequency and reduce maintenance cost and use cost.

Description

technical field [0001] The invention relates to a concrete mixer, in particular to a sealing mechanism for the mixing shaft of the concrete mixer. Background technique [0002] Concrete mixer is a widely used equipment in building construction. Existing concrete mixers are all driven by a stirring motor with one end of the stirring shaft extending into the hopper. Since the concrete is in direct contact with the stirring shaft when the equipment is working, in order to prevent the concrete from leaking out of the hopper along the stirring shaft, a solid dust-proof ring is usually used to prevent Seepage, because the concrete has a certain pressure in the hopper, when the mixer is working, the mortar will seep into the sealing mechanism from the tiny gap between the dust-proof ring and the mixing shaft, which will wear the sealing mechanism, and the dust-proof ring will usually fail quickly. The phenomenon of grout leakage will cause the concrete mixer to break down, which w...

AI Technical Summary

Problems solved by technology

Existing concrete mixers are all driven by a stirring motor with one end of the stirring shaft extending into the hopper. Since the concrete is in direct contact with the stirring shaft when the equipment is working, in order to prevent the concrete from seeping out of the hopper along the stirring shaft, a solid dust-proof ring is usually used to prevent Seepage, because the concrete has a certain pressure in the hopper, when the mixer is working, the mortar will seep into the sealing mechanism from the tiny gap between the dust-proof ring and the mixing shaft, which will wear the sealing mechanism, and the dust-proof ring will usually fail quickly. The phenomenon of grout leakage will cause the concrete mixer to fail, which will increase the maintenance cost and use cost

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