Control system of safety amusement excavator

Abstract

The invention discloses a control system of a safety amusement excavator and relates to a control system. The control system is used for controlling work of the safety amusement excavator. The safety amusement excavator comprises a motor, a hydraulic pump, a coin inserting device, a hydraulic oil tank, a large arm oil cylinder, a small arm oil cylinder, an excavator bucket oil cylinder and a rotary oil cylinder, the control system comprises an electric control device and a hydraulic control device, the electric control device comprises a controller, an overload protection switch, a relay, a sudden stop switch and a safety sensor, the controller is connected with the motor through a circuit and can control startup or stop of the motor through a control signal, the hydraulic control device comprises a manually-operated hydraulic quadruple valve and four throttling valves, and the hydraulic pump controls works of the large arm oil cylinder, the small arm oil cylinder, the excavator bucket oil cylinder and the rotary oil cylinder respectively through the manually-operated hydraulic quadruple valve. The amusement excavator is controlled by adopting the control system, the amusement excavator can be safely and reliably controlled to work safely, and an operator operating the amusement excavator can obtain feelings more similar to the feelings of operating a real excavator.

Description

Technical field [0001] The invention relates to a control system, in particular to a control system of a safe amusement excavator. Background technique [0002] Excavators are widely used in various engineering fields, but due to their high price and difficult operation, they are not well known to the general public. In order for the general public to understand the excavators, some amusement excavators are currently on the market, such as the patent application number 201210301047.2 The amusement excavator described in the Chinese invention patent application No. 1 includes a casing, a support, a power unit, a control unit, a hydraulic system, a seat, a swing Ken, and a bucket. It also includes a timing device for timing and control Operated manual hydraulic triple valve, coin acceptor for coin insertion, etc. The power device is driven by a motor. This amusement excavator can be used for children and adults amusement, and has simple structure, low production cost and relatively...

AI Technical Summary

Problems solved by technology

[0002] Excavators are widely used in various engineering fields, but due to their high price and difficult operation, they are not well known to the general public. In order for the general public to understand excavators, some amusement excavators have appeared on the market, such as patent application number 201210301047.2 The amusement excavator described in the Chinese Invention Patent Application No. includes a casing, a bracket, a power unit, a control unit, a hydraulic system, a seat, a rotary shaft, and a bucket, and it also includes a timing device for timing, for controlling The operating manual hydraulic three-way valve, coin acceptor for coin, etc., and the power device is driven by a motor. This amusement excavator can be used for children and adults to play, and has a simple structure, low production cost, and a relatively simple control system. The main pump is driven by the motor, and the control unit is controlled by the micro switch of the manual operation lever to control the reversing of the manual hydraulic three-way valve, and the manual hydraulic three-way valve can only make the actuator push the rotary arm and the bucket to move. When the operator is operating You can’t experience the same effect as the real excavator used in the project. When this kind of amusement excavator is working, if someone stands under the slewing arm and the operator cannot find it in time, safety accidents are prone to occur, and the safety performance is poor. Because there are more minors in the playground, there are more potential safety hazards

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