The universal hydraulic jack is suitable for various lifting operations with a small lifting height. It is composed of oil chamber, oil pump, oil storage cavity, piston, crank, oil valve and other main parts.
When working, as long as the crank handle is moved back and forth, the manual oil pump will continuously press oil into the oil cylinder. Due to the continuous increase of oil pressure in the oil cylinder, the piston and the heavy objects on the piston will move upward together. When the oil return valve is opened, the high-pressure oil in the oil cylinder flows back to the oil storage cavity, and the heavy object and the piston also fall together.
How to adjust the descent speed of the hydraulic jack?
Hydraulic jack of bottle jack manufacturers in china Speed debugging should be carried out circuit by circuit (the hydraulic system that drives and controls a mechanical organization). When debugging a circuit, the other circuits should be in a closed (no oil) condition.
When adjusting the speed of the hydraulic jack, it is necessary to adjust the gap of the guide rail and the azimuth accuracy of the moving parts of the hydraulic jack together, so as not to cause the transmission parts to be over-tightened and stuck.
If the jack is mixed with air, the speed will be unstable. Open the exhaust valve of the hydraulic jack during commissioning to remove the air trapped in the jack. Regarding the hydraulic jack without an exhaust valve, it is necessary to move the hydraulic jack back and forth several times, and properly loosen the pipe joint of the oil cavity during the movement. After seeing the oil overflow from the threaded joint, tighten the pipe joint.
In the process of debugging the hydraulic jack, the buffer equipment should be adjusted together until the stability requirements of the tissue carried by the jack are satisfied. If the buffer equipment of the hydraulic jack is not adjustable, the hydraulic jack must be disassembled and debugged on the test bench before being installed and debugged.
When adjusting the speed of the dual-effect hydraulic jack synchronization circuit, the two jacks should be adjusted to the same starting position before speed adjustment.The speed adjustment of hydraulic jack should be carried out under normal oil pressure and normal oil temperature. For hydraulic systems that require high speed stability, the speed changes should be observed under load.
The speed adjustment of the bottle hydraulic jack is finished, and then adjust the stroke position of each hydraulic jack, program action and safety interlocking equipment. Test operation can only be carried out after all targets have reached the planning requirements. The welding jack manufacturers in china will perform various performance tests on the jack.
Before using the jack, we must check whether the various parts are intact, whether the hydraulic joints are loose, whether the hydraulic tubing is damaged, after debugging, select the appropriate pump station, and strictly abide by the regulations in the main parameters when using it, and avoid super height Overload, otherwise, when the lifting height or lifting tonnage exceeds the regulations, serious oil leakage will occur on the top of the jack.
When using a jack, you should strictly abide by the regulations in the main parameters, and avoid super-high and overloading. Otherwise, when the lifting height or lifting tonnage exceeds the regulations, serious oil leakage will occur on the top of the electric jack. Choose a reasonable focus point for supporting the weight.
The jack should be placed on the bottom of the weight point. The bottom surface should be leveled. At the same time, the soft and hard conditions of the ground should be considered, whether it should be lined with tough wood, and whether the placement is stable to avoid sinking or tilting of the load. .
The bottle jack manufacturers in china Describe the load-bearing range of the jack.
A hydraulic jack refers to a jack that uses a plunger or a hydraulic cylinder as a rigid lifting member. It has the characteristics of compact structure, stable work, high supporting force and self-locking. The supporting capacity of hydraulic jack is strong, and the supporting force of heavy hydraulic jack exceeds 100t.
In order to reduce the frequency of failure of hydraulic jacks, the bottle jack manufacturers in china reminds us that we should pay attention to the following points in use:
1. When the hydraulic jack is working, first try to lift a part of the heavy object first, carefully check that the hydraulic jack is normal, and then continue to lift the heavy object. If the backing plate is found to be uneven or not firm or the hydraulic jack is inclined after being compressed, the hydraulic jack shall be depressurized and returned, and the operation can be performed after timely handling.
2. The hydraulic jack should be wiped clean before use, and all parts should be checked for flexibility and damage. Do not remove the quick connector when there is a load to avoid accidents and damage to the parts.
3. For heavier objects, multiple jacks are required for lifting, the same type of hydraulic jack should be selected, and the sum of the rated lifting weight of each hydraulic jack shall not be less than 1.5 times the weight of the equipment.