Manual hydraulic pallet truck
1. Basic structure
1), handle
The handle plays the role of manpower pressure to control the lifting of the hydraulic cylinder; the gear adjustment on it has three gears: when it is up, it provides the same function as the pressure relief valve; when it is down, the hydraulic cylinder can be pressurized through the handle; Must be in neutral when pulling cargo.
2) Forks
The fork is generally made of steel plate, with strong weighing capacity
3), hydraulic cylinder
The oil cylinder is composed of a grinding tube, a sealing ring, and an integrated valve core. The lifting and lowering is powered by hydraulic pressure, which greatly enhances safety.
4), wheels
The wheels are made of nylon, which is more wear-resistant than ordinary PU (polyurethane) wheels, and is the most common during use.
2. Working principle
The manual hydraulic pallet truck uses the principle of hydraulic transmission, uses oil as the working medium, transmits movement through the change of the sealed volume, and transmits power through the pressure inside the oil to achieve the effect of lifting heavy objects, and can control the movement of the fork. Lifting and lowering.
It has both the functions of consignment and lifting of goods. The main function of the linkage mechanism and hydraulic device between the chassis and the wheels is to facilitate the lifting and landing of goods. The specific working process is as follows: first insert the fork into the pallet under the goods, lift and raise the chassis through the human-controlled hydraulic system, and move the goods. Yes, the complicated process of manual handling is saved.
3. Precautions
▲ When pulling the truck, it is usually necessary to pull the finger control handle to the middle position, which is beneficial to reduce the rebound force of the small piston on the handle when moving the handle, and at the same time protect the hydraulic seals and piston components and prolong the service life of the truck effect
▲ It is strictly forbidden for people who are not familiar with the car and have not been trained to use it
▲ Manned operation is strictly prohibited
▲ It is strictly forbidden to use in places with slopes to avoid rollover
▲ During the handling of the goods, other people should stay away from the fork 600mm
▲ Attention should be paid to the center of gravity of the cargo to avoid unbalanced load and tilting,
▲ It is strictly forbidden to lift the goods with a single fork to avoid rollover or damage to the fork
▲ Do not overload
▲ When lowering the forks, it is strictly forbidden to extend hands and feet under the forks
▲ When the manual hydraulic truck is not in use, it is recommended to be empty and lower the fork to the lowest position.
▲ Do routine inspections every day, eliminate abnormal phenomena in time, and do not use faulty vehicles to prolong the service life. If there is a fault, a professional should be invited to troubleshoot it. At the same time, if parts need to be replaced, the parts should be provided by the manufacturer. Add motor oil to each rotating joint every three months, pay special attention to the wheels and shafts not to be entangled by sundries, and keep all wheels rotating lightly to meet safety requirements.
▲ Exhaust
Due to transportation or inversion of the pump body, air is likely to enter the hydraulic pump, which will cause the cargo pressure not to rise when the pump is pressurized during the ascent. You can turn the top of the handle to the lowered position and reciprocate up and down several times to discharge the air.
▲ Lubrication
It is necessary to add lubricating oil to each component regularly to reduce wear and tear and seal and prevent leakage.
Manual hydraulic stacker 1. Basic structure
2. Working principle
Similar to the ground cow, compared with the ground cow, two movable pulleys and chains are added to raise the goods
3. Precautions
same as ground cow
▲ Regularly check the movable pulley and chain, and lubricate regularly
▲ Pressure relief valve must be tightened when lifting cargo
▲ After the goods are in place, they must be braked before unloading
4. Comparison between the two
a. Lifting method
The same: all lift the goods through hydraulic devices
Different: The stacker lifts the pallet truck through the pedal pressure and lifts the pallet truck through the pressure handle
b. Pressure relief method
Different: The stacker releases pressure through a knob type pressure relief valve
The pallet truck can release pressure through the gear on the handle or through the pedal pressure relief valve
c. Structure
Same: hydraulic device, pressure relief valve, fork, drag handle
Different: The push-up car has more middle beams, protective nets, etc.
