Multi-cylinder pumping device

Abstract

The invention provides a multi-cylinder pumping device. The multi-cylinder pumping device comprises vortex line cams, pulleys, multiple piston cylinders and a foundation, wherein the vortex line camsare pivotally mounted on the foundation, the multiple piston cylinders are mounted on the foundation and distributed in the circumferential direction of the vortex line cams, one pulley is mounted ona piston rod of each piston cylinder, a vortex line slide way is formed in each vortex line cam, and each pulley is movably arranged in the vortex line slide way. According to the technical scheme, the piston rods in the piston cylinders are restrained by the vortex line slide ways to stretch and retract at a speed limited by a vortex line track formed during rotating of the vortex line cams, so that the piston rods of the multiple piston cylinders can perform reciprocating stretching and retraction at a constant speed through the vortex line slide ways, reset springs are not required to be mounted on the piston rods in a sleeving manner, rotating power of a motor is converted into reciprocating force as much as possible, power consumption can be reduced, and mounting processes are reduced.

Description

technical field [0001] The invention relates to the technical field of pumping, in particular to a multi-cylinder pumping device. Background technique [0002] The pumping device in the prior art is driven by a crankshaft driven by a motor, and the motor drives the eccentric cam to rotate, thereby driving the connecting rod to change nonlinearly with the change of the rotation angle. , the drive link will always swing left and right when the cam rotates. Therefore, the pumping device in the prior art has the following disadvantages: [0003] 1. High power consumption. The rotation of the eccentric cam makes the driving connecting rod push the piston to reciprocate. Due to the uneven weight of the eccentric cam, the driving connecting rod is always swinging, and the hinge point between the output end of the motor and the driving connection and the hinge point between the driving connection and the piston rod The change of the distance with the rotation angle is a nonlinear...

AI Technical Summary

Problems solved by technology

[0003] 1. High power consumption

The rotation of the eccentric cam makes the driving connecting rod push the piston to reciprocate. Due to the uneven weight of the eccentric cam, the driving connecting rod is always swinging, and the hinge point between the output end of the motor and the driving connection and the hinge point between the driving connection and the piston rod The change of distance with the rotation angle is non-linear, and the torque of the motor is always changing, so the kinetic energy of the motor rotation is consumed in these useless swings and torque changes, and it will also bring a lot of noise

[0004] 2. Complex structure, high manufacturing and assembly costs: the above two hinges are movable parts with high processing and assembly accuracy requirements, the piston cylinder and the motor bracket must be a fixed integral part, because both sides have holes, and All have high precision requirements, so the processing is difficult

Furthermore, if it is a multi-cylinder pump, the crankshaft must be used, and the processing and assembly are more difficult

[0005] 3. Large fluctuations in the gas (liquid) flow in and out need to be used with larger gas (liquid) bottles

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