Power-operated trolley

Abstract

The invention provides a power-operated trolley, which comprises a frame, a steering axle, a storage battery box, an electronic control device, a driving motor, a steering device, a speed reduction box, a driving axle, a wheel assembly, an emergency braking device and a parking braking automatic control system, wherein the driving motor is provided with an electromagnetic brake, the driving axle is provided with a hydraulic brake, the emergency braking device comprises a fixing cross beam, a movable cross beam, emergency switches, springs and rotating handles, the number of the emergency switches, the springs and the rotating handles are respectively two, the two ends of the two rotating handles are respectively hinged to rotating handle hinges on the fixed cross beam and rotating handle hinges on the movable cross beam, and the connecting lines of four hinging points form a parallelogram. When the power-operated trolley is used for performing transporting operation with large carrying load, the energy consumption is low, the cost is low, driving braking and parking braking are effectively ensured through combined braking of hydraulic braking and electromagnetic braking, the safety performance is high, the specific parallelogram mechanism of the emergency braking device effectively ensures braking in emergency situations, and the safety of carried goods is effectively ensured.

Description

technical field [0001] The invention belongs to the field of transport vehicles, in particular to an electric trolley. Background technique [0002] At present, the transportation vehicles used for transportation, especially the transportation vehicles with large carrying capacity, often use fuel oil as the main power, and this power mode often consumes a lot of energy and costs high. Therefore, it has become a major trend to use electric energy, a clean energy source, as the main power vehicle to replace the original fuel vehicle. [0003] The braking system used by electric vehicles for transportation generally uses electromagnetic brakes as braking devices to brake the travel motors, and the electromagnetic brake pads are easy to wear and have a short life. This kind of braking system is often unable to meet the needs of electric transport vehicles with a relatively large carrying capacity. The braking impact is large, and the goods are prone to fall due to inertia, posi...

AI Technical Summary

Problems solved by technology

[0003] The braking system used by electric vehicles for transportation generally uses electromagnetic brakes as the braking device to brake the travel motor, and the electromagnetic brake pads are easy to wear and have a short life.

This kind of braking system is often unable to meet the needs of electric transport vehicles with a relatively large carrying capacity. The braking impact is large, and the goods are prone to fall due to inertia, posing safety hazards.

Moreover, when a transport vehicle with a large carrying capacity encounters an emergency braking situation, the general emergency braking device can no longer meet the requirements.

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