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Four acting harmonic gear pump

A gear pump and harmonic technology, applied in the field of hydraulic pumps, can solve the problem of oil suction and discharge only once, and achieve the effects of reduced gap leakage, small vibration, and improved stress and deformation

Inactive Publication Date: 2016-12-14
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problems caused by the single-acting working mode that the drive shaft of the existing gear pump can only suck and discharge oil once per revolution, the present invention provides a pump with four oil suction chambers and four oil discharge chambers, which has high working efficiency and reliability. Four-action harmonic gear pump with improved

Method used

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Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] figure 1 and figure 2 It is an embodiment disclosed by the present invention. The four-action harmonic gear pump of the present invention consists of a driving shaft 1, a driving rigid wheel 2, a flexible wheel 3, a driven rigid wheel 4, a driven shaft 5, a left side plate 6, a right side plate 7, a sealing block 9, a front Bearing block 11, rear bearing block 12, pump body 10 etc. are formed. The main points of its structure are: the driving rigid wheel 2 and the driven rigid wheel 4 are both rigid gears, and the axis lines of the two are parallel; The center line of the centerline coincides and meshes with the driving rigid wheel 2 and the driven rigid wheel 4 respectively. The driving rigid wheel 2 has the same tooth width as the flexible wheel 3 and the driven rigid wheel 4; the sealing block 9 and the left plate 6, the...

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Abstract

The invention relates to a quadruple-action harmonic gear pump, comprising a driving shaft (1), a driving rigid gear (2), a flexible gear (3), a driven rigid gear (4), left and right lateral plates (6 and 7), a sealing block (9), front and rear bearing blocks (11 and 12) and a pump body (10), wherein the flexible gear (3) is a thin-wall flexible gear of which the pitch curve is an ellipse; the driving rigid gear (2) and the driven rigid gear (4) are rigid gears; the flexible gear, the driving rigid gear and the driven rigid gear are equal in tooth width; the sealing block (9) and the left and right lateral plates (6 and 7) partition a space among the driving rigid gear (2), the driven rigid gear (4) and the flexible gear (3) into four symmetrical oil absorption cavities (a) and four symmetrical oil discharge cavities (b); the driving shaft (1) rotates a cycle to finish oil absorption and discharge four times; quadruple displacement can be output; pulsation of synthetic flow is reduced; the radial hydraulic force of the two oil discharge cavities on the driving shaft (1) is balanced; the service lives of the bearing and the pump are prolonged; the quadruple-action harmonic gear pump is suitable for manufacturing a large-displacement gear pump.

Description

technical field [0001] The invention relates to a four-action harmonic gear pump, which belongs to the technical field of hydraulic pumps. Background technique [0002] At present, the gear pumps used in the hydraulic industry all belong to the single-acting working mode, that is, there is only one oil suction chamber and one oil discharge chamber, and the driving shaft can only complete one oil suction and one oil discharge after one rotation. The output flow fluctuates greatly, and the vibration and noise are also high. Due to the high pressure in the oil discharge chamber and the negative pressure in the oil suction chamber, the radial force generated by the pressure imbalance between the two will cause the drive shaft to bend and deform, resulting in increased clearance leakage and a decrease in the volumetric efficiency of the pump. Because the pressure oil is unilaterally output, the bearing receives a relatively large one-way pressure from the oil discharge chamber; ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C2/10F04C15/00
Inventor 祝海林邹旻王铖龙蒋宇
Owner CHANGZHOU UNIV
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