Rotary type guide rail drive piston pump

Abstract

The invention discloses a rotary type guide rail drive piston pump. The rotary type guide rail drive piston pump comprises a motor and a shell and is characterized in that a planetary gear train driven by a motor and an inner gear ring driven to rotate by the planetary gear train are arranged in the shell, a continuous wave-shaped lower guide rail and a continuous wave-shaped upper guide rail coordinated with the continuous wave-shaped lower guide rail are arranged on the inner lateral wall of the inner gear ring, the continuous wave-shaped lower guide rail and the continuous wave-shaped upperguide rail are fastened to form a continuous wave-shaped guide rail, a cylinder is arranged in the cavity of the inner gear ring, and a plurality of pistons which can move along the continuous wave-shaped guide rail are arranged on the peripheral edge of the cylinder at intervals. The rotary type guide rail drive piston pump has the advantages that the planetary gear train adopts the inner gear ring output manner, and the specially designed guide rail is arranged in the inner gear ring, a ball is mounted at the end of each piston, and the balls are coordinated with the guide rail; when the inner gear ring rotates, the guide rail is utilized to drive the radially distributed pistons to move in a reciprocating manner, and accordingly the piston pump can suck in and discharge a medium.

Description

technical field [0001] The invention relates to piston power equipment, in particular to a rotary guide rail driven piston pump. Background technique [0002] At present, the common piston pump converts the rotary motion into linear reciprocating motion through the crank-link mechanism (the cam-slider mechanism is a two-way double-acting crank-link mechanism). When the crank rotates counterclockwise at a certain angular velocity, the piston moves from the left limit position to the right, the volume of the working chamber increases, the pressure decreases, and the medium overcomes the resistance of the suction pipeline and the suction valve and enters the cylinder under the action of the pressure difference. When the piston moves to the right limit position (rotating 180°), the suction process stops and the suction check valve is closed. The crank continues to rotate, the piston starts to move to the left, the medium in the cylinder is squeezed, and the pressure increases. ...

AI Technical Summary

Problems solved by technology

[0003] The following disadvantages of existing piston pumps: 1. Since the piston needs to be driven by the crank-link mechanism, the stroke of the crank-link mechanism often determines the single discharge capacity of the piston pump, and the discharge continuity is poor, and there is an intermittent feeling; 2. Due to the eccentricity of the structure when the connecting rod mechanism is running, its dynamic imbalance is very poor, which causes the piston pump to vibrate violently and the noise level is very high; Placed at right angles, the piston pump is L-shaped as a whole, resulting in a bulky overall structure, which limits the use of piston pumps in areas with limited space

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