Due to the large weight, workloads and difficult working conditions, the control of heavy machines and mechanisms, as well as road and off-road special equipment, requires significant effort. The metering pump for the steering system is designed to provide a fractional supply of the working fluid to the hydraulic cylinder. That is, when an additional load arises due to the rotation of the machine, the application of some force when lifting a load or when performing some working manipulations, this pump provides an increase in the supply of working fluid to the piston of the steering hydraulic cylinder. The required volume of liquid is regulated by the built-in dispenser, which makes it possible to deliver more at high loads and less at medium ones, thereby strengthening the control system.
In the classic version, the pump dispenser https://voykon .com.ua /produkciya /gidravlika /nasosy-dozatory-danfoss-i-komponenty-gidravlicheskogo-rulevogo-upravleniya / consists of:
- bodies and valves (shockproof, anti-cavitation and safety);
- gerotor or axial piston dosing mechanism;
- hydraulic valve with a spool;
In addition to the standard set of components, many modern models contain additional elements and nodes that allow you to implement a number of auxiliary functions such as:
- increased fluid flow;
- uninterrupted feed in non-standard situations;
- parallel control and guidance (EHPS system);
- automatic or remote interaction with steering systems via satellite.
The last option is implemented in Danfoss products. Metering pumps manufactured by this company have many auxiliary functions in their arsenal.
Regardless of the size, model and modification, all hydraulic steering wheels have a wide range of applications. They are in demand both in the hydraulic systems of various heavy equipment and vehicles, and in the hydraulic systems of mini tractors, small loaders, mowers and other similar machines. For cranes, motor graders, tractors, dump trucks and large tractors, a metering pump with increased fluid flow such as OSPQ and OSPD is used, as well as OSPB 800 or OSPBX 500 (LS) with the option of additional control in non-standard modes. For machines of medium and low power, hydrostatic control units of the OSPB, OSPF or OSPR models are intended. For small vehicles, with an oil or working fluid consumption of up to 450 liters per minute, metering pumps of the OSQ type are suitable.
