Lateral plate floating variable-speed pump for loader

• Main Authors: LOU GUOYI, YAN HEPING, CHEN HAIBO
• Format: Patent
• Language: Chinese; English
• Published: 19.02.2014
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS; WEAPONS

The utility model aims to provide a lateral plate floating variable-speed pump for a loader. The plate floating variable-speed pump comprises a pump body and a pump cover, wherein a big gear wheel and a pinion are arranged between the pump body and the pump cover; a lateral plate A is arranged between the big gear wheel/the pinion and the pump cover; a lateral plate B is arranged between the big gear wheel/the pinion and the pump body. The two lateral plates are additionally arranged between the big gear wheel/the pinion and the pump body as well as between the big gear wheel/the pinion and the pump cover; through soft cushions behind the two lateral plates and introduced oil pressure, the two lateral plates can be tightly pressed on sides of the big gear wheel and the pinion; the clearance between the sides can be always kept to be minimal; the possibility of leakage can be reduced to the maximum extent. In the meantime, a lubricating layer is applied to each sliding surface between the lateral plates and bi