High-bearing gear-type pump motor

Abstract

The invention discloses a high-bearing gear-type pump motor which belongs to the field of motors. The high-bearing gear-type pump motor comprises a gear pump body, wherein two gears are installed in the gear pump body; the outer end of each gear is fixedly connected with a plurality of teeth which are distributed uniformly; the two gears are in engagement connection by the teeth; a reverse U-shaped cavity is cut inside each of the teeth; a plurality of reinforcement balls are placed on the left inner end and the right inner end of each reverse U-shaped cavity; every two adjacent reinforcementballs touch each other; and a splayed storage bag is placed in the inner end of each reverse U-shaped cavity. Wear resistance on the surface of the teeth is enhanced through use of a nanometer high-temperature wear-resistant composite coating; through cooperative use of the internal reinforcement balls and the splayed storage bags, overall strength of the teeth can be enhanced as use time goes; and energy generated from vibration during engagement can be absorbed by the reinforcement balls, so stability of the two gears during engaged rotation is enhanced and thus the service life of the gearmotor is increased.

Description

technical field [0001] The invention relates to the field of motors, more specifically, to a high-load gear pump motor. Background technique [0002] A gear motor refers to a hydraulic motor that inputs pressure fluid to rotate two (or more than two) gears that mesh with each other in the pump casing. Gear motors have the characteristics of simple structure, small size, and light weight, and are generally used in high-speed and low-torque situations. When the displacement of the gear motor is constant, the output speed of the motor is only related to the input flow, while the output torque changes with the external load. As the gear rotates, the gear meshing point is constantly changing (that is, x and y are variables), which is why the output speed and output torque of the gear motor pulsate even if the input instantaneous flow rate is constant. So the low-speed performance of the gear motor is not good. [0003] The gear motor has the following characteristics: (1) The ...

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Problems solved by technology

[0004] During the working process of the gear motor, the two gears installed inside are meshed and rotated. After long-term use, the teeth on the gears will be worn when meshed, especially the part where the two teeth are in contact with each other. It is easy to be worn. After the teeth are worn, when the two teeth are in contact again, the contact surface becomes lower relative to the surface of the teeth, which reduces the stability of the two gears during meshing and is prone to imbalance due to uneven force. Not only affects the service life of the entire gear motor

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