A self-lubricating multi-way oil supply gear pump
A multi-channel oil supply, gear pump technology, applied in the direction of pumps, pump components, rotary piston pumps, etc., can solve the problems of loose structure, large space occupation, high product quality, etc., achieve small quality, improve work efficiency, volume small effect
Active Publication Date: 2020-04-28
XIAN AERO ENGINE CONTROLS
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Problems solved by technology
[0003] The existing single-stage gear pump can meet the single-channel fuel supply demand of the fuel system, but multiple different gear pumps need to be designed to realize the supply of multiple different oil circuits, which has problems such as loose structure, large space occupation, and high product quality. shortcoming
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Embodiment Construction
[0021] Such as Figure 2-3 , a self-lubricating multi-channel oil supply gear pump, comprising an upper pump cover 1, an upper casing 2, a lower casing 3, a lower pump cover 4, a driving shaft 5, a driven shaft 6, and 3 driving gears (7a, 7b , 7c), 3 driven gears (8a, 8b, 8c), sealing ring 9;
[0022] The upper pump cover, the upper casing, the lower casing and the lower pump cover are fixedly connected in turn, and the upper chamber is formed by the upper pump cover and the upper casing, the middle chamber is formed by the upper casing and the lower casing, and the lower pump cover and the lower casing form the lower chamber; the driving shaft and the driven shaft run through three chambers (10a, 10b, 10c), and sealing rings are arranged between the driving shaft, the driven shaft and the lower casing, so that the middle chamber The chamber is sealed and isolated from the lower chamber;
[0023] The 3 driving gears and the driving shaft rotate integrally, with the same angu...
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The invention discloses a self-lubricating multi-path oil supply gear pump. The self-lubricating multi-path oil supply gear pump comprises an upper pump cover, an upper shell, a lower shell, a lower pump cover, a driving shaft, a driven shaft, three driving gears, three driven gears and a sealing ring, the three driving gears and the three driven gears form an upper middle-lower three-pair meshinggear pair, the three pairs of meshing gear pairs are located in three chambers respectively, and three single-stage gear pumps are formed. By means of the gear pump, multiple gear pumps can work at the same time, the multi-path flow is obtained, the purposes of simultaneously supplying oil or pumping oil to a hydraulic system are achieved, and the working efficiency is greatly improved; the feeding of different media is realized through the sealing design between the upper middle gear pump and the lower gear pump; the self-lubricating function of the gear pump can be achieved through an oil way designed among the stages of pumps; and a plurality of gear pumps are combined in series, and the self-lubricating multi-path oil supply gear pump has the advantages of being small in size, small in weight, compact in structure and the like.
Description
technical field [0001] The invention belongs to the technical field of hydraulic mechanical accessory gear pumps, and relates to a self-lubricating multi-channel oil supply gear pump. Background technique [0002] Such as figure 1 As shown, the existing gear pumps are common single-stage gear pumps, which are meshed by a pair of gears to form an oil suction chamber and an oil discharge chamber. The gear pump with this structure has only one oil inlet and one oil outlet, and can only realize single-way oil supply. [0003] The existing single-stage gear pump can meet the single-channel fuel supply demand of the fuel system, but multiple different gear pumps need to be designed to realize the supply of multiple different oil circuits, which has problems such as loose structure, large space occupation, and high product quality. shortcoming. Contents of the invention [0004] Purpose of the present invention: to design a multi-channel oil supply series combined gear pump wi...
Claims
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IPC IPC(8): F04C2/18F04C11/00F04C15/00
CPCF04C2/18F04C11/001F04C15/0003F04C15/0088
Inventor 万丽萍
Owner XIAN AERO ENGINE CONTROLS