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A Two-way Rotating Involute Tooth Profile Internal Gear Pump

A technology of internal meshing gear pumps and involute teeth, which is applied in the direction of rotary piston pumps, rotary piston/swing piston pump components, rotary piston machinery, etc. Friction and wear, lubricating oil film instability and other problems, to achieve the effect of reducing wear, prolonging service life, improving stability and reliability

Active Publication Date: 2022-06-21
NAVAL UNIV OF ENG PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the working process, the ring gear is very easy to generate radial load due to the oil pressure in the meshing area, so that the outer side of the ring gear is pressed against the inner surface of the pump body seat hole side. With the high-speed rotation of the ring gear, the ring gear and The lubricating oil film between the seat holes is unstable, and the surface of the parts is prone to friction and wear, resulting in heat generation and excessive fit clearance, increasing internal leakage, and reducing the volumetric efficiency of the pump

Method used

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  • A Two-way Rotating Involute Tooth Profile Internal Gear Pump
  • A Two-way Rotating Involute Tooth Profile Internal Gear Pump
  • A Two-way Rotating Involute Tooth Profile Internal Gear Pump

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Embodiment

[0037] see Figures 1 to 3 , the bidirectionally rotatable involute tooth profile internal meshing gear pump in the preferred embodiment of the present invention includes a lower pump body 1 and an upper pump body 2, and the lower pump body 1 is provided with a seat hole 101, so that after the upper and lower pump bodies are matched, A closed cavity structure is formed between the two. The upper and lower pump bodies are connected and fixed by a number of fastening screws 103, and a number of positioning pins, namely the first positioning pins 102, are correspondingly arranged between the upper and lower pump bodies, and the opposite end faces of the upper and lower pump bodies are provided with corresponding first positioning pins 102. The pin hole is used for corresponding accommodation of the first positioning pin 102 .

[0038] Specifically, the lower pump body 1 in the preferred embodiment is as follows figure 1 As shown in the figure, a seat hole 101 with a certain dep...

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Abstract

The invention discloses a two-way rotatable involute tooth profile internal meshing gear pump, which belongs to the technical field of hydraulic transmission. The involute tooth profile is accurately realized through the symmetrical arrangement of a crescent plate, a ring gear and a gear in a seat hole. The two-way rotation of the internal gear pump improves the functionality and scope of application of the involute tooth profile internal gear pump; and through the "displacement" setting of the ring gear in the seat hole and the corresponding setting of the seat plate in the seat hole, it can Effectively avoid the interaction between the ring gear and the inner wall of the seat hole due to the radial load generated by the rotation. The bidirectionally rotatable involute tooth profile internal meshing gear pump of the present invention has a compact structure and is easy to install, and can accurately realize the bidirectional rotation of the involute tooth profile internal meshing gear pump, avoiding the outer periphery of the ring gear and the inner peripheral wall of the seat hole. The wear and tear of the internal meshing gear pump prolongs the service life of the components in the internal meshing gear pump, improves the comprehensive performance of the internal meshing gear pump, and has a good application prospect and promotion value.

Description

technical field [0001] The invention belongs to the technical field of hydraulic transmission, in particular to an involute tooth profile internal meshing gear pump capable of bidirectional rotation. Background technique [0002] The hydraulic pump is the power component of the hydraulic system, which is mainly used to convert the mechanical energy of the prime mover into the hydraulic energy of the working medium, thereby driving the hydraulic actuator to achieve power output. Gear pump is a kind of hydraulic pump widely used in hydraulic system, which is characterized by simple structure and reliable operation, while internal gear pump is a common gear pump because of its compact structure, small size, light weight and low flow pulsation. , The output pressure is high, and the gear ring rotates in the same direction, the relative movement speed is small, the friction is slight, and the service life is long, so it is widely used. [0003] For the internal gear pump, its co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C2/10F04C15/00
CPCF04C2/10F04C2/101F04C15/00
Inventor 张艳涛陈宗斌廖健王迎春张煜
Owner NAVAL UNIV OF ENG PLA
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