Hengyang Heavy Industry Hydraulic Wheel Side Brake YLBZ40-180 Hydraulic Port Terminal

At present, the hydraulic wheel brake used for large-scale lifting equipment in the port are used in a hydraulic station to drive several hydraulic wheel brake cylinders in the form of the so-called one tow more. Hydraulic station and cylinders are connected by oil pipes and connectors. The existing structure in the process of using the following defects:

(1) Hydraulic station and the cylinders between the hydraulic pipeline is long, more joints, construction volume, high requirements, due to operational reasons or aging reasons, there is a high risk of leakage. The pipeline is too long, and air venting also needs to be carried out one by one, and it is difficult to vent the air.

(2) If one of the cylinders in the one-tractor-multiple-component system fails to leak, the oil pressure will not be maintained, and there is a possibility that all the wheel side brakes driven by this hydraulic station will fail.

If the hydraulic station fails, there will be a large area of simultaneous failure of the wheel brake, for a host of equipment is very dangerous.

(3) In the process of long time use, due to the long pipeline, and the cylinder are single-acting cylinders, will lead to the oil in the pipeline can not be renewed, the oil in the cylinder due to the oil is not involved in the cycle, it will be faster aging, the surrounding environmental media such as water, salt, acid and alkali components, etc. Slowly immersed in the reason and lead to the decline of the oil, it will aggravate the wear and tear of the cylinder, increase the possibility of rust, seriously reduce the service life. (4) The traditional wheelside brake

(4) The conventional wheel brake cylinder is a single-acting cylinder with no hydraulic oil stored on the back of the piston (spring mounting side), where dust and grease form sludge, which is brought into the piston working area, contaminating the piston and leading to leakage of the piston seal. If the piston seal leakage, then the hydraulic oil will all leak to the spring side, not only the oil will be lost, but also the formation of a vicious circle, the dust and grease, and the leakage of hydraulic oil together will further form a greater amount of sludge, which will further lead to not good sealing and greatly reduce the service life, the failure rate increased significantly. Leakage of piston seals will also lead to a reduction in the hydraulic system fluid, leaking fluid will also be harmful to the environment.