Floor push moving device

Abstract

A ground rail moving apparatus comprising: a guide rail (30); a driving dolly (10) arranged on the guide rail (30); and a driven dolly (20) arranged on the guide rail (30) and located behind the driving dolly (10), wherein at least one pair of driven dolly middle wheels is arranged between front wheels (21) and rear wheels (22) of the driven dolly (10), the driven dolly middle wheels being close to either the front wheels (21) or the rear wheels (22) of the driven dolly. The ground rail moving apparatus according to the present invention is able to prevent the phenomenon whereby the driven dolly becomes unbalanced due to an unstable centre of gravity causing the castor and the guide rail to become offset, and enables line contact between the driven dolly and the guide rail to be maintained, avoiding derailment of the driven dolly and greatly improving the stability and safety of the ground rail moving apparatus.

Description

technical field [0001] The invention relates to assembly equipment for industrial assembly lines, in particular to a ground pushing mobile device. Background technique [0002] Such as figure 1 and figure 2 As shown, two trolleys (i.e., an active trolley 10' and a driven trolley 20') are generally used on the ground push line 30' to support the object 40' to be transported, so as to realize the automatic movement of the object 40' to be transported and improve Productivity. The existing active trolley 10' and the driven trolley 20' all adopt a single-sided two-wheel structure, and the roller 11' is supported by two deep groove ball bearings. [0003] see in conjunction image 3 Shown, existing push dolly is used for non-special-shaped (object to be transported 40 ' center of gravity all can be placed on active dolly 10 ', the central position of driven dolly 20 ') lighter object is applicable. But for the boom structure of the pump truck, on the one hand, the boom stru...

AI Technical Summary

Problems solved by technology

But for the boom structure of the pump truck, on the one hand, the boom structure of the pump truck belongs to a large and irregular shape (the front and rear centers of gravity of the object 40' to be transported cannot be placed at the center of the active trolley 10' and the driven trolley 20' at the same time. ) class, on the other hand, the boom assembly is also a unilateral special-shaped combination, that is to say, no matter how you adjust it, it is impossible to fix the center of gravity G1' and G2' of the front and rear installation of the boom assembly on the active trolley 10' and the driven trolley 20' center position

[0004] Therefore, for large and special-shaped parts such as the boom assembly, due to the uneven distribution of its own gravity, its center of gravity on the driven trolley cannot be at the center of the driven trolley, and the force on the driven trolley is unbalanced.

During the transportation process, since the center of gravity of the large and special-shaped parts is not at the center of the driven trolley, the driven trolley is easy to travel eccentrically, which causes serious wear between the roller and the guide rail, and eventually leads to failure of the roller bearing, which cannot normally support the roller. In addition, the eccentric The front wheel of the driven trolley is in point contact with the guide rail, and the reaction area of ​​the guide rail to the roller is small, which leads to the failure of the roller and the derailment of the driven trolley, damage to the objects to be transported and the trolley, and even serious casualties to the operators. security incident

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