Multifunctional radial plunger type internal curve Oil motor It can be divided into plunger force transmission, cross beam force transmission, roller force transmission and other structural forms. It is safe and reliable to operate. The structure of this type of motor is simple and clear. These two types of motors have been produced in Ningbo City and Guangdong Province in China, Inner five-star hydraulic motor Ningbo manufacturer has replaced more than two rollers or beams with one steel ball. In view of the progress made in the experimental exploration of the basic theory of static and dynamic pressure bearing of ball plug pairs, the swinging and rotating telescopic cylinder block has replaced the swinging and rotating of crankshaft and connecting rod.
It is a newly constructed motor developed overseas in the past decade, which has further improved its performance indicators. However, the mechanical working principle of the internal structure is relatively complex, and the structure is simple and clear.
Later, the structure was changed to two swashplates and two rows of plungers in the corresponding layout. In recent years, the double swashplate axial diameter plunger oil motor was made progress by the single swashplate high-speed axial diameter plunger motor. The extremely high working pressure was 32 Mpa, which nearly doubled the output power to net weight ratio. The front one has the specific advantages of the crankshaft connecting rod and the static balance oil motor, Among all slow speed and high torque motors, they are more and more widely used in light industry, engineering construction, chemical industry, transportation and other fields, under any load.
The roller passing through the groove at the top of the plug transfers force to the cylinder block, and the performance index is excellent. The Rexroth plunger pump is not widely used. In view of the continuous improvement of product quality and performance indicators, the motor of QKM series can "suspend" on the valve distributor under the static pressure function, Swing cylinder motor The size and net weight of the motor are significantly reduced, and the domestic brands include NJM series products. Among them, the cross beam force transmission motor and roller force transmission motor are used more frequently, and good performance indicators have been achieved in the single function motor. Recently, the end face flow distribution wheel motor has been improved. Sleeve telescopic cylinder swing (Calzon) and roller type (Rolleff) oil motors. Multifunctional radial ball plug oil motor has made rapid progress, and the motor has high working pressure.
