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Importance & details of cargo lift explosion-proof valves
The importance of hydraulic explosion-proof valves in explosion-proof cargo lift cannot be underestimated. The specially customized explosion-proof cargo lift is a kind of lifting mechanical equipment, which can be manually operated by the button of the control system to quickly load and unload the goods. The lifting height is 0-4 meters, and special specifications of fixed hydraulic lifts can be customized according to user requirements. It is mainly used for the rapid loading and unloading of factory assembly lines, cargo warehouses, parking lots, docks, construction, logistics, etc. For the safety of goods, equipment, and personnel, MORN LIFT has installed explosion-proof valves for elevator products. When there is a problem when the elevator is raised in the high altitude, it is ensured that the elevator table will not fall out of control accidents quickly, and the console surface will slowly descend.
Working principle of the Cargo lift explosion-proof valve
The working principle of the explosion-proof valve: There is a closed cavity in the solenoid valve, and there are through holes at different positions. Each hole leads to a different oil pipe. In the middle of the cavity is the valve. On both sides are two electromagnets. Which side of the magnet coil is energized The valve body will be attracted to which side, by controlling the movement of the valve body to block or leak the different oil discharge holes, and the oil inlet hole is normally open, the hydraulic oil will enter the different oil discharge pipes and then pass the oil The pressure to push the piston of Yugang, the piston drives the piston rod, and the piston rod drives the mechanical device to move. In this way, the mechanical movement is controlled by controlling the current of the electromagnet.
Important protecting part of hydraulic driven systems
Most of the cargo lift on the market use hydraulic transmission systems. When it comes to hydraulic transmission systems, we must not forget the hydraulic explosion-proof valve, which is the safety protection god of the elevator. When the hydraulic pipeline bursts and the hydraulic system loses pressure, it can quickly cut off the hydraulic oil leakage channel to prevent the hydraulic oil from leaking from the hydraulic cylinder, thereby effectively preventing the scissor lift freight elevator from falling out of control and preventing the hydraulic oil from leaking Cause environmental pollution. Therefore, it can be said that the hydraulic explosion-proof valve is an indispensable part of the scissor lift freight elevator. Although its volume is small, its function is irreplaceable.
Generally speaking, each oil inlet and outlet of the lift cylinder should be equipped with an explosion-proof valve for the hydraulic line, so as to effectively prevent the lift from falling out of control and causing serious accidents when the hydraulic line is broken. At present, most hydraulic explosion-proof valves are integrated with two-position solenoid directional valves, safety valves, one-way valves, and throttle valves to form a hydraulic support explosion-proof valve. It can not only play the role of hydraulic self-locking and prevent The natural sinking of the elevator can also prevent the freight elevator from suddenly falling down, and it can switch between the rising and falling of the scissor lift freight elevator.
What is the Cargo lift explosion-proof valve consist of?
The oil pipe explosion-proof valve is a safety anti-crack valve for heavy-duty hydraulic lifting platforms. It consists of a valve body, a compression spring, a slide valve and a retaining ring. The cavity of the valve body is equipped with a compression spring, and the compression spring and a pressure spring can slide in the cavity. The spool valve is connected with the spool valve, which is limited by a retaining ring embedded in the valve body, the top of the spool valve is provided with a through hole, the bottom of the spool valve is a plug, and the cavity is connected with the inlet and outlet of the valve body. An anti-cracking valve is installed close to the oil cylinder near the oil port (the oil port is also made). When the hydraulic pipeline bursts, the plug seals the inlet of the valve body and cuts off the oil flow of the oil cylinder to prevent the oil pipe Suddenly burst and fall out of control accident. Once the tubing ruptures, causing the elevator to fall too fast, the anti-cracking valve is quickly closed and becomes a throttling state, so that the hydraulic lifting platform table slowly descends to ensure the safety of personnel and equipment.
Cargo lift explosion-proof valve suitable for everyone to choose.
The elevator manufacturer analyzed that during the oil return process, because there is a micro-hole throttle in the one-way throttle valve in the hydraulic unit with a diameter of 0.8 mm, the explosion-proof valve core does not work under the action of back pressure and spring force during the oil return process. , But if the back pressure disappears (that is, the high-pressure hose bursts or other reasons), the explosion-proof valve core is pushed into the explosion-proof joint under the action of high-pressure oil to block the small hole, so that the cylinder will slowly or not drop, so as to avoid personal injury accidents. Repeated tests such as simulated blasting and normal operation, the elevator explosion-proof valve has the advantages of normal rising and falling process, less resistance, lower energy consumption, etc., suitable for everyone to choose.