Single-engine multiple-transmission operation mode

Abstract

The invention relates to a single-engine multiple-transmission operation mode of a road pollutant removal vehicle. The single-engine multiple-transmission operation mode comprises an engine, a clutch,a gearbox, a multiple-transmission box, a chassis hydraulic walking operation mechanism and a top-mounted pure mechanical transmission operation mechanism. According to the layout mode, the size of ahydraulic oil tank can be reduced to 1 / 3-1 / 4 of the original hydraulic transmission, the heat dissipation power of a hydraulic system is greatly reduced, meanwhile multiple motors, multiple high-pressure oil pumps, multiple control valves and other components are omitted, and the space is saved; meanwhile, compared with the top-mounted hydraulic transmission, by the adoption of the top-mounted pure mechanical transmission operation, the layout is simple, the failure rate is low, the maintenance is easy, a high-power hydraulic oil heat dissipation system is omitted, and the whole vehicle costis reduced; meanwhile the hydraulic walking operation is realized, and the requirements of large-torque and ultra-low-speed operation are met; and the output power of an engine is matched through themultiple-transmission box, the ultra-low-speed hydraulic walking during operation can be met, and the mechanical force-taking requirement of a high-pressure water pump and a high-pressure fan can be met.

Description

[0001] (1) Technical field [0002] The invention relates to a single-engine compound transmission operation mode. [0003] (2) Background technology [0004] "Determining cleanliness with grams" is an emerging quality assessment method for sanitation work in recent years, that is, the assessors set aside a square meter from the cleaning area to collect the dust and weigh it. Weighing is accurate to "grams", and the result is used as a standard for evaluating the effect of sanitation operations and the cleanliness of the road. The standardized operation of "determining cleanliness with grams" has played a new role in promoting industry norms, urban sanitation and civilization, and improving air quality. At present, there are two main implementation plans for "cleaning with grams": 1. Relying on the work of sanitation workers, which has a large labor force and low work efficiency. 2. Relying on mechanized operations, ordinary sanitation vehicles currently on the market, such a...

AI Technical Summary

Problems solved by technology

At present, there are two main implementation schemes of "cleaning with grams": 1. Relying on the work of sanitation workers, with a large labor force and low work efficiency

2. Relying on mechanized operations, ordinary sanitation vehicles currently on the market, such as sweepers and road sweepers, cannot meet the requirements of cleanliness. In order to meet market demand, various sanitation manufacturers have launched road pollutant removal vehicles. Among them The operation effect can achieve the net effect by grams, but to achieve the effect of decontamination operation, it must be operated at ultra-low speed. At the same time, the condition that needs to be met is that the high-pressure water generated by the high-pressure water pump cleans the road surface. After cleaning, the dirt is removed by the high-pressure high-pressure fan suction, while the transmission form of road pollutant removal vehicles on the market relies on setting up an inter-axle transfer case between the chassis drive shafts, relying on the inter-axle transfer case to achieve ultra-low-speed hydrostatic travel during operation, and driving a high-pressure water pump to achieve high-speed The rotation is realized by the high-pressure water pump motor. The power of the high-pressure water pump motor comes from the high-pressure water pump driving the pump to convert hydraulic energy into mechanical energy, while the high-pressure water pump drives the pump to take power through the inter-axial transfer case. The driving mode of the high-pressure fan is also divided into Both hydraulic and mechanical

At present, most of the high-pressure water pumps and high-pressure fans of this type of power distribution are driven by hydraulic pressure. The size of the oil tank of the hydraulic system is too large, and the temperature of the hydraulic oil is too high when the motor runs at high speed. It needs to be equipped with a high-power cooling system. At the same time, the failure points are relatively high and difficult to maintain.

At present, there are road pollutant removal vehicles on the market that use high-pressure high-pressure water pumps and high-pressure fan drive modes, which require the use of multiple motors, multiple high-pressure oil pumps, multiple control valves, high-power oil temperature cooling systems, and super-large hydraulic oil tanks. The layout form greatly occupies the entire vehicle layout space, and at the same time cause the super high cost of the road pollution removal vehicle

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