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Biaxial harmonic gear pump

A gear pump and harmonic technology, applied in the direction of rotary piston pumps, pumps, pump components, etc., to achieve the effects of reduced leakage, stable operation, and excellent overall performance

Active Publication Date: 2013-09-11
CHANGZHOU XIAOGUO INFORMATION SERVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of radial force commonly existing in existing gear pumps, and to provide a double-shaft harmonic gear pump with improved radial force balance, oil pumping efficiency and service life

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 double-shaft harmonic gear pump of the present invention consists of a transmission shaft 1, a mandrel 2, a flexible spline 3, a rigid spline 4, a left side plate 5, a right side plate 6, a sealing block 13, a rigid spline rotating arm 10, a column pin 11, Bearing seat 17, roller 15, support arm 16, shaft end cover 20, pump body 14, pump cover 19 etc. are made up. The transmission shaft 1 is set on the left end of the mandrel 2 and can rotate around the mandrel 2; the flexible spline 3 is a thin-walled external gear that can produce elastic deformation, and is installed on the outer ring of the roller 15; the rigid spline 4 is a rigid internal gear. An ear seat 22 is arranged on it; the flexible spline 3 meshes with the rigid spline 4, both ar...

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Abstract

The invention relates to a biaxial harmonic gear pump, comprising a transmission shaft (1), a mandrel (2), a flexible gear (3), a rigid gear (4), left and right lateral plates (5 and 6), a sealing block (13), a rigid gear tumbler (10), a pin (11), a roller (15), a support arm (16), a shaft end cover (20), a pump body (14) and a pump cover (19), wherein the transmission shaft (1) is sleeved at the left end of the mandrel (2) and can rotate around the mandrel (2); the flexible gear (3) is a thin-wall flexible outer gear; the rigid gear (4) is a rigid inner gear, and the flexible gear (3) and the rigid gear (4) are concentric and equal in tooth width; the support arm (16) is fixed on the mandrel (2); the sealing block (13), the left and right lateral plates (5 and 6), the flexible gear (3) and the rigid gear (4) form two symmetrical oil absorption cavities (a) and two symmetrical oil pressure cavities (b). Therefore, pressure oil acts on the transmission shaft and the radial force on the bearing is balanced; the service life of the pump is prolonged; the problem of radial force of the traditional gear pump is effectively solved.

Description

technical field [0001] The invention relates to the technical field of gear pumps, in particular to a double-shaft harmonic gear pump. Background technique [0002] The gear pump is the most widely used hydraulic pump in the hydraulic system. There are two types of structure: external meshing and internal meshing. They are composed of driving gears, driven gears, transmission shafts, pump bodies, pump covers, etc. When working, there is only one oil suction chamber and one oil pressure chamber, and the driving gear only completes one oil suction and one oil discharge after one rotation. [0003] During the working process of the gear pump, the pressure of the oil acting on the outer edge of the gear is uneven. From the oil suction chamber to the oil pressure chamber, the pressure increases tooth by tooth along the direction of gear rotation. Therefore, the radial force on the transmission shaft and the gear The resultant pressure is unbalanced. This unbalanced radial force...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C2/10F04C15/00
Inventor 祝海林邹旻蒋宇王铖龙
Owner CHANGZHOU XIAOGUO INFORMATION SERVICES
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