Lifting type tail cover sealing device for concrete stirring transport vehicle and using method

Abstract

The invention discloses a lifting type tail cover sealing device for a concrete stirring transport vehicle and a using method, and belongs to the technical field of tail cover sealing devices of concrete stirring vehicles. The device is characterized in that a rotary sealing assembly is arranged at an outlet flange of a stirring barrel, a sealing door is hinged to the rotary sealing assembly, andthe two ends of an executing part in an opening and closing driving system are correspondingly connected with a cross beam on a material guiding part and the feeding hopper sealing door through hingesso as to control opening and closing of the sealing door. When the sealing door needs to be opened, the opening and closing driving system controls the sealing door to be opened in a lifting mode soas to form a certain angle with the end surface of the outlet flange, and discharging or barrel cleaning is carried out; and when the sealing door needs to be closed, the opening and closing driving system controls the sealing door to be closed and is tightly attached to the rotary sealing assembly. The rotary sealing assembly is installed on the stirring barrel, so that the sealing effect is guaranteed, meanwhile, the weight of the sealing door is greatly reduced, the abrasion of a sealing part is reduced, and the using efficiency is improved. The sealing door is in a full-sealing mode, so that water evaporation of materials in the barrel is reduced, and the transportation quality is improved.

Description

technical field [0001] The invention belongs to the technical field of a tail cover sealing device of a concrete mixer truck, and in particular relates to a lifting tail cover sealing device for a concrete mixer truck and a use method thereof. Background technique [0002] The outlet of the mixing drum of the traditional concrete mixer truck is mostly open. During the driving process, the vehicle will often leak concrete and other materials and cause road pollution due to poor road conditions. After improvement, the outlet of the mixing drum has a sealing device. But there are problems of heavy weight and serious wear and tear parts. [0003] The existing related patent (CN107344401A) introduces a hollow shaft rotary sealing method, which reduces the wear of the sealing parts while ensuring the sealing effect, improves the reliability of the concrete mixer truck, and reduces the difficulty of maintenance, but the rotary support The installation of other components on the ai...

AI Technical Summary

Problems solved by technology

[0002] The outlet of the mixing drum of the traditional concrete mixer truck is mostly open. During the driving process, the vehicle will often leak concrete and other materials and cause road pollution due to poor road conditions. After improvement, there is a sealing device at the outlet of the mixing drum. But there is a problem of heavy weight and more parts with serious wear

[0003] The existing related patent (CN107344401A) introduces a hollow shaft rotary sealing method, which reduces the wear of the sealing parts while ensuring the sealing effect, improves the reliability of the concrete mixer truck, and reduces the difficulty of maintenance, but the rotary support The installation of other components on the airtight door significantly increases the weight of the airtight door, and requires hydraulic drives on both sides to provide greater driving force, which is also a test for the hydraulic system. At the same time, once the hydraulic system fails, there are no relevant measures to solve it; at the same time The material in the mixing drum will have a lot of water evaporated through the slewing support assembly, so the transportation quality cannot be guaranteed

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