The universal Welding Hydraulic Bottle 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 hydraulic jack?
The speed adjustment of hydraulic jacks should be carried out on a 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. During the debugging process, open the exhaust valve of the hydraulic jack to remove the air trapped in the jack. Regarding the hydraulic jack without an exhaust valve, it is necessary to make the hydraulic jack move back and forth several times, and properly loosen the pipe joint of the oil chamber when moving, and tighten the pipe joint after seeing the oil overflow from the threaded 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 device 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 Welding Hydraulic Bottle Jack is finished, and then adjust the stroke direction 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 synchronous jack overcomes the tilt of the lifting weight of a single jack, which leads to damage and danger to the lifting object. Multi-top synchronous diverter valve should be used when in use, and the lifting load of each top should be balanced to keep the lifting and falling speeds synchronized. It should also be considered that the ground may sink due to the uneven weight of the lifting object, causing the lifting object to tilt and causing man-made damage.
The series of synchronous jacks are equipped with pressure holding and overflow devices to prevent overload, and are equipped with safety valves to protect the synchronous jacks to achieve safe operation and protect the lifting objects. The pressure holding device is more suitable for falling beams in bridge construction with high pressure holding requirements .
When using synchronous hydraulic jacks, we need to adjust the speed of the hydraulic jacks to meet the needs of the work.Synchronous hydraulic jack speed debugging should be carried out one by one circuit (the hydraulic system that drives and controls a mechanical mechanism). When debugging a circuit, the rest of the circuits should be closed (no oil).
When adjusting the speed of the synchronous 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 not be stable. Open the exhaust valve of the hydraulic jack during the commissioning process to remove the air trapped in the jack.