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Transmission connection structure of air compressor and high-pressure oil pump

A high-pressure oil pump and transmission connection technology, which is applied in the direction of machines/engines, pumps, piston pumps, etc., can solve the problem of large space for air compressors and high-pressure oil pumps, and achieve ingenious lubricating structure design, high connection strength, and off-center rotation The effect of small displacement

Active Publication Date: 2020-12-25
DONGFENG AUTOMOBILE COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problem of the large arrangement space of the air compressor and the high-pressure oil pump in the prior art, and to provide an integrated layout of the transmission connection structure of the air compressor and the high-pressure oil pump

Method used

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  • Transmission connection structure of air compressor and high-pressure oil pump
  • Transmission connection structure of air compressor and high-pressure oil pump
  • Transmission connection structure of air compressor and high-pressure oil pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049]A transmission connection structure of an air compressor and a high-pressure oil pump. The transmission system includes: an air compressor 1 and a high-pressure oil pump 2. The air compressor 1 is provided with an air compressor crankshaft 3, and the high-pressure oil pump 2 is provided with A high-pressure oil pump crankshaft 4, the power input end of the air compressor crankshaft 3 is fixedly connected with a transmission gear 5, and the power output end of the air compressor crankshaft 3 is in drive cooperation with the power input end of the high-pressure oil pump crankshaft 4; The crankshaft 3 includes an integrated power input shaft 31, a rotating shaft 32, a crank connecting rod assembly 33, and a power output shaft 34. The end of the power input shaft 31 is fixedly connected to one end of the crank connecting rod assembly 33 through the rotating shaft 32 , The other end of the crank connecting rod assembly 33 is fixedly connected to one end of the power output shaft 34...

Embodiment 2

[0051]Embodiment 2 is basically the same as embodiment 1, and the difference lies in:

[0052]The air compressor coupling key teeth 35 and the high pressure oil pump coupling key teeth 41 have the same cross-sectional shape, and the heights of the air compressor coupling key teeth 35 and the high pressure oil pump coupling key teeth 41 are greater than or equal to the coupling 6 The thickness of the air compressor coupling key teeth 35, the high-pressure oil pump coupling key teeth 41 and the coupling 6 assembling the combined part is a complete ring; the middle of the oil pump end flange 21 is provided An annular boss 23. A pump shaft fixing hole 24 is opened in the middle of the ring boss 23. The pump shaft fixing hole 24 rotates with the crankshaft 4 of the high pressure oil pump through a bearing. The outer edge of the ring boss 23 is connected to the coupling shaft. The lubrication groove 12 is inserted and fitted; the air compressor 1 housing is provided with an air compressor lu...

Embodiment 3

[0054]Embodiment 3 is basically the same as embodiment 2, and the difference lies in:

[0055]The width of the key tooth groove 61 is greater than or equal to 6 mm, the groove depth of the key tooth groove 61 is greater than or equal to 5 mm, the diameter of the shaft hole 62 is greater than or equal to 30 mm, and the groove depth of the key tooth groove 61 is consistent with that of the coupling The ratio of the circumferential thickness of the device 6 is less than or equal to 0.75; the transmission gear 5 is sleeved on the power input shaft 31, and the transmission gear 5 is connected to the rotating shaft 32 through a positioning pin 51.

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Abstract

The invention provides a transmission connection structure of an air compressor and a high-pressure oil pump. A transmission system comprises the air compressor and the high-pressure oil pump, an aircompressor crankshaft is arranged in the air compressor, a high-pressure oil pump crankshaft is arranged in the high-pressure oil pump, a power input end of the air compressor crankshaft is fixedly connected with a transmission gear, a power output end of the air compressor crankshaft is in transmission fit with a power input end of the high-pressure oil pump crankshaft, the air compressor crankshaft comprises a power input shaft, a rotating shaft, a crank connecting rod assembly and a power output shaft which are of an integrated structure, an end of the power input shaft is fixedly connectedwith one end of the crank connecting rod assembly through the rotating shaft, the other end of the crank connecting rod assembly is fixedly connected with one end of the power output shaft, an end surface of the other end of the power output shaft is provided with air compressor coupling key teeth, and the air compressor coupling key teeth are in transmission fit with high-pressure oil pump coupling key teeth arranged on the end surface of the high-pressure oil pump crankshaft through a coupler. The design is high in transmission reliability and compact in structural arrangement.

Description

Technical field[0001]The invention relates to a transmission connection structure of an air compressor and a high-pressure oil pump, and is particularly suitable for the compact arrangement of the transmission structure of an automobile air compressor.Background technique[0002]In recent years, with the upgrading of emissions, more and more parts need to be arranged on the engine, resulting in an increasingly tight layout space for individual components. Therefore, higher requirements have been placed on the spatial layout and structural design of the air compressor, and the layout space must be reduced. , To meet the requirements of lubrication, power, strength, vibration reduction, noise reduction and so on. At present, most domestic air compressors are of independent structure, with relatively few output functions at the back end. The invention patent proposes an air compressor with a rear output structure, the air compressor and the high-pressure oil pump are integrated into a tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B63/06F02B67/04F04B17/05F04B35/00F04B37/12F04B39/00F04B39/02F04B39/14F04B53/00F04B53/18F04B53/22
CPCF02B63/06F02B67/04F04B17/05F04B35/002F04B37/12F04B39/00F04B39/0094F04B39/02F04B39/0284F04B39/14F04B53/00F04B53/18F04B53/22
Inventor 叶建平余国强洪志刚贺亚玲曾思思高昂代超群颜星星陈鹏张国波马骏吕智滔郭璇尹传龙李文娟马舒丹
Owner DONGFENG AUTOMOBILE COMPANY
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