Internal engagement spherical gear pump

An internal meshing and ball tooth technology, applied in the direction of pumps, pump components, rotary piston pumps, etc., can solve the problems of cost reduction and difficult gear processing, and achieve the effects of reducing production costs, simple processing, and increasing rated pressure.

Active Publication Date: 2016-12-07
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, gear processing is more difficult, which is not conducive to reducing costs

Method used

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  • Internal engagement spherical gear pump
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  • Internal engagement spherical gear pump

Examples

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Embodiment 1

[0024] Example 1, such as Figure 2-3 As shown, this embodiment discloses an internally meshing ball-tooth pump. The ball-tooth pump includes a front end cover 1 and a rear end cover 3. The outer surface of the front end cover 1 is provided with a sealing ring gland 4, and the sealing ring gland 4 A seal ring 41 is installed between the front end cover and the front end cover 1, and the ball tooth assembly 2 is between the front and rear end covers. The shaft 5 penetrating into the ball tooth pump passes through the above seal ring 41 and passes through the bearing 51 to the front end cover 1 and the rear end respectively. The cover 3 is connected, and the support and fixation of the shaft 5 is realized through the above-mentioned bearings 51 installed on the front and rear end covers; the button assembly 2 includes a pump body 6, and an outer rotor 9 and an inner rotor 8 are arranged in the pump body 6, and the outer rotor The outer surface of 9 is connected with the inner wa...

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PUM

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Abstract

The invention discloses an internal engagement spherical gear pump. The spherical gear pump comprises a front end cover and a rear end cover. The outer surface of the front end cover is provided with a sealing ring gland. A sealing ring is installed between the sealing ring gland and the front end cover. A spherical tooth assembly is arranged between the front end cover and the rear end cover. The spherical tooth assembly comprises a pump body. An outer rotor and an inner rotor are arranged in the pump body. The outer surface of the outer rotor is connected with the inner wall of the pump body through a bearing, and n1 spherical teeth are evenly distributed on the inner surface of the outer rotor in the circumferential direction. A crescent plate is further arranged between the inner rotor and the outer rotor. A positioning pin penetrating the crescent plate is connected with the front end cover and the rear end cover to fix the position of the crescent plate. According to the internal engagement spherical gear pump, the two sides of the spherical tooth assembly are connected with the front end cover and the rear end cover through friction gaskets correspondingly, end face gaps are small, the problem that in the prior art, end face leaks of an internal engagement gear pump are large is solved, the efficiency of the pump can be improved, the rated pressure of the pump is increased, and in addition, the pump can be used in liquid media such as seawater and fresh water with low viscosity.

Description

technical field [0001] The invention belongs to the field of power components in hydraulic systems, in particular to an internal meshing spherical gear pump in this field. Background technique [0002] Internal gear pumps are commonly used power components in hydraulic systems, and have the advantages of no trapped oil, stable transmission, and low noise. Such as figure 1 As shown, the internal meshing gear pump adopts the principle of internal meshing of gears, the pitch circles of the internal and external gears are close to one side, and the other side is separated by the crescent plate 103 . The driving internal gear 101 on the main shaft drives the external gear 102 to rotate in the same direction. The gears are separated from each other at the inlet to form a negative pressure oil suction chamber 104 to suck liquid. The gears are continuously embedded and meshed at the outlet to form a pressure oil chamber 105 to squeeze out the liquid. [0003] Ordinary internal gea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C2/10F04C15/00
CPCF04C2/10F04C15/00F04C2240/20
Inventor 杨友胜卢青松
Owner OCEAN UNIV OF CHINA
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