Mixing drum support device and concrete mixer truck

Abstract

The invention discloses a concrete mixer and a mixing drum support device for the same. The mixing drum support device comprises a first support body (2) and a second support body (3) which are arranged on a loading platform (1) of the concrete mixer at an interval; the mixing drum support device further comprises a connecting mechanism (4), wherein two ends of the connecting mechanism (4) are respectively connected to the first support body (2) and the second support body (3) so that component forces borne by the first support body (2) and the second support body (3) along the transverse direction of the concrete mixer are mutually transmitted. In the mixing drum support device disclosed by the invention, the component forces borne by the first support body (2) and the second support body (3) can be mutually transmitted through a connecting mechanism (4), the risk of connection failure between a connecting bracket (4) and the loading platform (1) is effectively reduced, a mixing drum is prevented from rolling, and the safety performance of the concrete mixer is improved.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a mixing drum support device for a concrete mixer truck and a concrete mixer truck with the mixer drum support device. Background technique [0002] Concrete mixer truck is a special truck used to transport concrete for construction. It is also often called "snail truck" because it is equipped with a cylindrical mixing drum for storing and mixing concrete on its bearing platform. During the operation of the concrete mixer truck, it is necessary to install a support device under the mixing drum. On the one hand, it prevents the mixing drum from rolling off the bearing platform and avoids personal and property losses; Supporting role. [0003] However, when concrete is housed in the mixing drum, due to its large mass and high center of mass, accidents of the mixing drum rolling down are prone to occur when turning. Specifically, refer to Figure 1 to Figure 3 As shown, the mi...

AI Technical Summary

Problems solved by technology

like figure 1 As shown, under the condition of static load or overload, the first support body 2 and the second support body 3 are not only subjected to the longitudinal force perpendicular to the bearing platform 1, but also to the outward component force along the transverse direction of the concrete mixer truck (generally along the horizontal direction), the component force is likely to loosen the threaded connectors connecting the bottom plate 51 and the bearing platform 1, causing potential safety hazards

like image 3 As shown, in the cornering limit condition, due to the large inertia of the mixing drum 9, the first support body 2 bears all the longitudinal force and lateral force, while the second support body 3 is not affected by force, it is easy to cause the connection of the second support body 3 The threaded connection of a support body is cut off and other failure phenomena, causing the mixing drum 9 to fall, causing serious safety accidents

Although the turning limit does not generally occur in actual working conditions, the service life of the components will still be shortened due to the uneven force on the first support body 2 and the second support body 3 during the turning process

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