Manufactured by Hoglon, Sweden White hydraulic motor Among our products, hydraulic motors of the same product model can be divided into hydraulic motors for industrial production and hydraulic motors for marine environment. There are great differences between them. For example, the Marathon MB2400 series hydraulic motor can be used not only on the bucket wheel machine at the port and wharf, but also on the reaming suction dredger ship, mainly to push the underwater reamer. The hydraulic motor used on the ground has the following differences from the hydraulic motor used in the water:

1. The rotary seal of the main shaft of the hydraulic motor used on the ground is a pair of double seals. The outer seal is wear-resistant and dust-proof, and the inner seal is protected from the pressure oil in the shell. The material is seventy-two NBR. The wear ring on the rolling bearing side is made of carbon steel.

5. When it is necessary to remove the housing bolts during the repair of the hydraulic motor, be sure to use two (preferably four) hydraulic bolt holders, and remove the housing bolts in a diagonal manner by gradually reducing the force distance in five times

The sample removal will not cause stress and deformation to the housing (hydraulic motor cover). The hydraulic bolt holder is more necessary than the fixing during the removal. As the pipe thread and screw cap are immersed in the sea water for a long time, the rust between the pipe thread and the flat pad causes the upper part of the locking surface of the removed bolt.

6. Because Inner curve hydraulic motor The speed is low and the load is large. In order to better improve the thickness of the bearing oil film of the rolling bearing, the thrust bearing at the end of the hydraulic motor shaft is assembled in a specially made fully enclosed cavity at the end of the housing, and special synthetic oil is injected into the seal cavity for lubrication instead of being used in the housing Hydraulic transmission For oil lubricated rolling bearings, regular maintenance is necessary. Discuss the oil quality in the closed chamber, check the special synthetic oil in the closed chamber or check whether it is leaked into the hydraulic transmission oil in the housing. When the hydraulic motor is used to 6000H, it is necessary to clean the seal chamber and replace the special synthetic oil to maintain the thrust bearing clearance reasonably and effectively, The clearance of the rolling bearing is also the clearance of the port plate of the hydraulic motor, which is particularly important for the internal leakage value of the hydraulic motor.

7. Scientific and reasonable standby pressure and working pressure in the shell. The sufficient return oil working pressure is to better ensure that there is no derailment between the roller bearing of the hydraulic motor and the wheel curve guide rail to prevent collision. The standby pressure cannot be too large, which will lead to increased heat in the operating system, accelerate the aging of seals, or even deteriorate the hydraulic transmission oil quality and lose its lubrication performance.

8. To repair this type of underwater hydraulic motor, one must have a certain professional qualification for repairing hydraulic equipment. One must have experience in repairing this type of underwater hydraulic motor. The most important thing is to have a practical manual for underwater motor maintenance in Hegelong Marathon, and fully master the technical specifications and protective measures for underwater hydraulic motor against water in the sea, If the hydraulic motor used to repair the water cutter is handed over to an inexperienced manufacturer for repair, it is equivalent to destroying the hydraulic motor.