Protection system for lateral movement of telescopic arm forklift
A telescopic arm forklift and protection system technology, which is applied in the field of telescopic arm forklift lateral movement protection systems, can solve problems such as lateral tipping of vehicles, and achieve the effects of preventing lateral tipping, high safety and simple structure
Active Publication Date: 2017-03-15
HANGCHA GRP
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Problems solved by technology
However, when the telescopic arm of the vehicle is in the state of lifting and loading, if the side leveling structure button is misoperated, the consequences may be very serious, and it is very likely that a little bit of misoperation will cause the vehicle to tip over sideways
Method used
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[0021] Such as figure 1 , Figure 4 As shown, the present embodiment includes a telescopic arm 1, a vehicle frame 2 and a front and rear axle 3, and a vehicle frame side leveling mechanism is arranged between the vehicle frame 2 and the front and rear axles 3, and the side leveling mechanism includes a fuel tank 4 and a side leveling oil cylinder 11, The oil tank 4 is connected to one end of the side level oil cylinder 11 through the oil suction filter 5, the gear pump 7, the electromagnetic reversing valve 8, the two-way hydraulic lock 10 and the throttle valve 9, and the load protection valve 6 is passed between the gear pump 7 and the electromagnetic reversing valve 8 The oil tank 4 is connected to the other end of the side level oil cylinder 11 through the electromagnetic reversing valve 8, the throttle valve 9 and the two-way hydraulic lock 10; the electromagnetic reversing valve 8 has a proportional solenoid valve Y1 and a proportional solenoid valve Y2.
[0022] In thi...
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The invention relates to a telescopic handler side flat action protection system. The risk caused due to the fact that a side flat button is operated by mistake when a telescopic boom is in a hoisting and loading state is avoided. The system is simple in structure, safe and reliable. According to the technical scheme, the system comprises the telescopic boom, a frame and a front and rear axle, a frame side flat mechanism is arranged between the frame and the front and rear axle, and provided with a proportional electromagnetic valve Y1, a proportional electromagnetic valve Y2, a telescopic boom lifting state detecting switch S1, a side flat function allowing switch S2, a proportional valve controller E01, a side flat action switch S3 and a micro sensor E02, the proportional electromagnetic valve Y1 and the proportional electromagnetic valve Y2 are used for controlling the frame to swing left and right, and the telescopic boom lifting state detecting switch S1 and the side flat function allowing switch S2 are electrically connected with the proportional valve controller E01, and control the proportional valve controller E01 to be powered on and off together. The proportional valve controller E01 is electrically connected with the side flat action switch S3, and the side flat action switch S3 is controlled to be powered on and off. The side flat action switch S3 is electrically connected with the proportional valve controller E01 through the micro sensor E02.
Description
technical field [0001] The invention relates to a lateral movement protection system of a telescopic arm forklift. Suitable for telehandlers with side leveling mechanism. Background technique [0002] Off-road telehandlers often have to work in the field with uneven ground. When the vehicle is parked on a slope with a lateral slope, the lateral stability of the vehicle is very poor, not only the carrying capacity of the vehicle is greatly reduced, but also due to the lack of prompts from the lateral stability alarm system, the vehicle is prone to lateral tipping, which is very danger. Generally, for off-road telescopic forklifts with a lifting height greater than 10 meters, a frame side leveling mechanism will be provided. The front and rear axles of the vehicle and the vehicle frame are hinged together through a pin shaft, and can swing left and right in a limited range around the pin shaft. forward [0003] A side flat oil cylinder is arranged between the axle housing...
Claims
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IPC IPC(8): B66F17/00B66F9/22B66F9/065
CPCB66F9/065B66F9/22B66F17/003
Inventor 方晓晖楼东旭刘真奕青张国强
Owner HANGCHA GRP