a mixer truck

Abstract

The invention discloses a mixer truck, which comprises a speed reducer, a mixing drum and a hydraulic motor, and the speed reducer is respectively connected with the mixing drum and the hydraulic motor. It also includes the front desk, the front top plate, the front baffle, the side baffle, the first adjustment bolt, and the second adjustment bolt; the front top plate is installed on the front desk, and the reducer is installed on the front desk top plate; and the side boss, the front baffle is located between the front boss and the reducer, the first adjusting bolt presses the front baffle; the side baffle is located between the side boss and the reducer, and the second adjusting bolt presses the side baffle . The present invention limits and protects the front, left and right sides, and up and down directions of the reducer through the front baffle and side baffles, so as to avoid the risk of breakage of the installation bolts of the reducer.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a mixer truck. Background technique [0002] Concrete mixer truck (hereinafter referred to as mixer truck) is a special vehicle for mixing and transporting concrete, which is composed of a car chassis and a special device for concrete mixing and transportation (mixing drum, etc.). [0003] The reducer is an important part of the mixer truck. The reducer is used to decelerate the output speed of the motor in the hydraulic system, increase the torque and transmit it to the mixing drum (container when transporting concrete). [0004] The front desk is a part of the auxiliary frame of the mixer truck. The reducer is installed on the top plate of the front desk. The front baffle of the reducer is set at the front end of the front desk. Part of the impact. However, extremely high precision is required when welding the stopper of the reducer. If the accuracy cannot be guaranteed, ...

AI Technical Summary

Problems solved by technology

However, extremely high precision is required when welding the stopper of the reducer. If the accuracy cannot be guaranteed, the reducer will not be assembled or the gap will be too large, so that it will not be able to limit the position and share the force.

[0005] In the existing industry, the block of the reducer is all welded, and the block of the reducer is basically welded to the top plate of the front desk by the matching welding process. The matching welding can achieve a suitable position accuracy, but the matching welding needs to be carried out in the assembly workshop, which affects Efficiency in assembly, and work such as touch-up painting is required

If the reducer block is pre-welded on the top plate of the front desk, because the shape of the reducer from each manufacturer is not uniform, and the reducer shell is a casting, the accuracy is poor, resulting in poor setting of the position accuracy of the reducer block, often appearing "pre-welding The stopper of the reducer is against the front face of the reducer, and the reducer cannot be assembled", or there is a problem of "there is a gap between the stopper of the reducer and the front end of the reducer, and the stopper does not actually work"

[0006] None of the existing industries has limited the side and upper surface of the reducer, and it is impossible to avoid the displacement of the reducer in the left and right (relative to the symmetrical center of the vehicle frame) and up and down directions (relative to the longitudinal beam wing surface of the vehicle frame) of the mixer truck. The risk of breakage of the reducer mounting bolts cannot be avoided

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