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Double-acting plunger pump

A plunger pump, double-acting technology, applied in the field of hydraulic components, to achieve the effect of convenient operation, low noise pollution, low friction and vibration

Inactive Publication Date: 2013-02-27
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the inevitable processing and assembly errors in the cam curve and phase, the actual flow rate of the pump still has a non-negligible pulsation rate

Method used

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  • Double-acting plunger pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment one: see figure 1 As shown, a double-acting plunger pump includes a left hydraulic pump 1 and a right hydraulic pump 2. The hydraulic pump includes symmetrically arranged left and right hydraulic mechanisms, and a driving gear 3 is arranged between the left and right hydraulic mechanisms. A driven gear 4 is meshed with the driving gear 3, the driving end of the driving gear 3 is connected to the servo motor, and the left and right hydraulic mechanisms are connected to the driving gear 3 and the driven gear 4 through a crank transmission mechanism, so The oil outlets of the left and right hydraulic mechanisms are respectively connected to the actuator through the one-way valve 5, and the oil return ports of the left and right hydraulic mechanisms are respectively connected to the oil tank 6 through the one-way valve 5. The hydraulic mechanism includes a hydraulic Cylinder 7, the hydraulic cylinder 7 is provided with a piston 8, the inner end of the piston 8 an...

Embodiment 2

[0027] Embodiment two: the structure is the same as that of embodiment one.

[0028] When the device is in use, it adopts the constant acceleration-uniform speed-equal deceleration trapezoidal waveform speed curve, and the flow curve of the left hydraulic pump or the right hydraulic pump is as follows: Figure 5 and Image 6 As shown, the flow curve after the two pumps are connected in parallel is as follows Figure 7 As shown, so as to achieve constant current output.

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Abstract

The invention discloses a double-acting plunger pump comprising a left hydraulic pump and a right hydraulic pump. The double-acting plunger pump is characterized in that the hydraulic pumps comprise a left hydraulic mechanism and a right hydraulic mechanism which are symmetrically arranged; a driving gear is arranged between the left hydraulic mechanism and the right hydraulic mechanism and is meshed with a driven gear; the actuation end of the driving gear is connected with a servo motor; the left hydraulic mechanism and the right hydraulic mechanism are connected with the driving gear and the driven gear by a crank connecting rod transmission mechanism; the oil outlets of the left hydraulic mechanism and the right hydraulic mechanism are respectively connected with an actuating mechanism by a check valve; and the oil return openings of the left hydraulic mechanism and the right hydraulic mechanism are respectively connected with an oil tank by the check valve. In the double-acting plunger pump, output flow can be subjected to constant-flow output, and the double-acting plunger pump has smaller friction and vibration, small noise pollution and a simple structure.

Description

technical field [0001] The invention relates to a hydraulic component, in particular to a double-acting plunger pump. Background technique [0002] At present, in the hydraulic pump, the plunger pump has been widely used for its simple working principle. The principle is: when the driving force drives the plunger to reciprocate in the plunger hole of the cylinder, the plunger and the cylinder are composed The volume of the closed working chamber changes, so as to realize the process of oil suction and discharge. The plunger pump has the advantages of high rated pressure, compact structure, high efficiency and convenient flow adjustment. [0003] The plunger pump can be divided into radial type and axial type according to the different arrangements of the plunger in the cylinder. The plungers of the radial piston pump are installed radially in the cylinder body, and the cylinder body is driven by the prime mover to rotate, so the cylinder body is generally called the rotor. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B9/113
Inventor 王明娣钟康民戴晓兰宋成法
Owner SUZHOU UNIV
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