Cover plate structure for gear chamber of hydrogen circulating pump

Abstract

The invention provides a cover plate structure for a gear chamber of a hydrogen circulating pump, applied to the technical field of hydrogen circulating pumps. A driving shaft (3) and a driven shaft (5) of the cover plate structure for the gear chamber of the hydrogen circulating pump both extend to the gear chamber (7), a first bearing (8), a first oil seal (9) and a first gas seal (10) are arranged between the driving shaft (3) and a driving shaft mounting hole (4), and a second bearing (12), a second oil seal (13) and a second air seal (14) are arranged between the driven shaft (5) and a driven shaft mounting hole (6). The cover plate structure for the gear chamber of the hydrogen circulating pump is simple in structure, low in cost and reliable in performance. The problems that heat dissipation of the gear chamber of the hydrogen circulating pump is enhanced, noise is too high, lubricating oil is inconvenient to replace, metal impurities generated by abrasion of the gear chamber cannot be effectively cleaned up, and the use performance of the circulating pump is affected can be effectively solved.

Description

technical field [0001] The invention belongs to the technical field of hydrogen circulation pumps, and more specifically relates to a gear chamber cover structure of a hydrogen circulation pump. Background technique [0002] With the gradual depletion of traditional fossil energy and the increasing attention of human society to environmental issues, it is imperative to use new energy sources for automobile power. Due to the characteristics of renewable energy, wide distribution, reaction to generate water, and high efficiency of fuel cells, fuel cells are regarded as the ultimate solution for new energy vehicles. The hydrogen gas enters the fuel cell and reacts with oxygen to produce water, while generating heat and electricity. However, at this stage, the hydrogen inside the stack cannot be completely reacted and consumed. If it is directly discharged into the atmosphere, it will not only cause energy waste, affect the economy and the cruising range of the vehicle, but als...

AI Technical Summary

Problems solved by technology

However, due to the harsh working environment of the circulating pump, the existing structure cannot effectively meet the requirements of preventing leakage

At the same time, the synchronous gears in the gear chamber need to contact and mesh with each other to transmit torque, and are subject to impact loads. The operating conditions are relatively harsh, and there will be wear and tear. If they are not cleaned in time, the metal scraps falling due to wear will cause the synchronous gears to wear Problems such as aggravation, increased noise, excessively high gear room temperature, and deterioration of lubricating oil

The structure in the prior art is not suitable for high-speed and heavy-load working conditions. At present, in the relevant patent documents, no relevant technical records have been found for cleaning metal waste in the gear chamber of this type of hydrogen circulation pump.

Images