On Low speed high torque hydraulic motor In the industry, the working pressure torque ratio (k, n, m), there is no machine in the world that can match Hegron hydraulic motor Comparatively, even though Hegelong Company in Sweden claims that the machinery and equipment manufactured by its own company are global Hydraulic motor It is the champion in the product category, but there are still many problems related to the structure and raw materials of this motor that need to be constantly improved, such as the adhesion resistance of raw materials, dirt resistance, wear resistance, matching of load bearing, etc.

The champion of Hoglon, Marathon and Viking Inner curve motor In China's domestic industrial production, shipbuilding, port terminals, marine engineering platforms, mining, power stations, pulp, sugar mills and other high-end machinery and equipment in various industries, its shadow can be seen, with a very wide range of applications (this article is later called the Hegelong Champion, Marathon, and Viking three hydraulic motors as motors). "The nobility among the nobility, the cost performance ratio is very high" This is the most objective evaluation of the experts in the industry on the hydraulic motor of Hegelong. The customer has adopted this kind of machine and equipment. If you want to reduce the cost of maintenance, you also need to ensure the service life, which is inconsistent with the law of objectivity. With the increase of the service life of machinery and equipment, the maintenance cost will also increase. The use of maintenance and repair of such machinery and equipment requires more attention everywhere, just like taking care of your own children -- but in case of an accident, the results will be unpredictable and the loss will be very large! The use and maintenance of this motor are proper, and the service life can be doubled, otherwise the service life will be greatly shortened. The main factors that affect the service life of the motor and cause damage to the motor are "ten fears". The following ten fears are listed in the order of violation factors;

1. The bearing capacity of hydraulic oil film shall be low. The main function of the oil film is to separate the two metal material surfaces of the friction pair, so that the friction pair can operate under pure liquid friction, thus reducing damage, improving work efficiency and lengthening the service life of the friction pair. The camshaft ring of the inner curve motor is a fixed part, while the plunger and roller bearing are moving parts. The bright red working pressure oil in the cylinder bore pushes the plunger and roller bearing downward, and the roller bearing is pushed on the surface of the camshaft ring raceway. Even when the high extrusion working pressure is achieved, the plunger and the hole wall, the plunger hemispherical ball socket and the roller bearing Between roller bearing and camshaft ring raceway, the two metal materials of these three pairs of friction pairs are separated by oil film, and there is no contact between metal materials. The thickness of this kind of oil film absorbed on the friction surface of metal materials Under the load force function, the thickness of the oil film is pushed from the default value to the ultra-thin residual oil film value, and the oil wedge generated by the residual oil film must have sufficient thickness. This is the concept of thrust oil film [1] in academic research, and the concept of thrust oil film is a crucial concept for the operation characteristics of internal curve motor.