Chassis articulated system of large-sized articulated coach

Abstract

The invention discloses a chassis articulating system which is applicable to a rear engine large articulated bus. The chassis articulating system comprises three parts of a split truss structure, a hydraulic control system and an electric control unit, wherein the split truss structure mainly realizes the articulation of a front compartment and a back compartment of the large articulated bus; the hydraulic control system is mainly used for providing the damping force which is correspondingly increased along with the increase of a rotation angle of the front and the back compartments for the large articulated bus, thereby stopping the sideslip of a second bridge of tires during the turning of the large articulated bus and preventing the shear of the front and the back compartments; the electric control unit is mainly used for monitoring the status of the large articulated bus, controlling the on / off status of an electromagnetic valve and a throttle valve in the hydraulic control system and emitting an alarm signal. The invention has the advantages that each part of the split structure is mutually independent and interrelated, the requirements on the manufacturing process are lower, the manufacturing cost is low; the maintenance is convenient, the cost is low; the operation stability is good; the shock absorbing effect is good; the system strength is high and the load capacity is great.

Description

technical field [0001] The invention relates to a chassis articulation system suitable for a 14-25 meter-long large-scale articulated bus with a length of two or more, especially a chassis articulation system suitable for a 14-18-meter-long large-scale articulated bus with a rear engine. Background technique [0002] Before 2005, the second-class or above large-scale articulated buses (commonly known as Datong sets) driving in large and medium-sized cities in China were basically front-engine articulated buses. The engine was installed at the front end of the bus, and the front frame drove the rear car. The front frame and the rear frame are connected by ball studs. The disadvantages of this type of front-engine articulated bus are: low utilization rate of interior space, high interior noise, poor comfort, unreasonable axle load distribution of the vehicle, easy to produce tail flicking during fast driving, and is not suitable for rapid transit System car. [0003] With th...

AI Technical Summary

Problems solved by technology

The disadvantages of this type of front-engine articulated bus are: low utilization rate of interior space, high interior noise, poor comfort, unreasonable axle load distribution of the vehicle, easy to produce tail flicking during fast driving, and is not suitable for rapid transit System car

However, its disadvantages are: manufacturing difficulty, high manufacturing cost, high maintenance cost

[0006] At present, the cost of molds required to produce such steel products with high integration and large individual volume is very high. Moreover, there is still a certain gap between the technical level of my country's steel industry and the advanced foreign steel industry. Therefore, this has virtually increased the difficulty and cost of producing and processing such products in our country.

At present, the price of this highly integrated articulation system in the Chinese market is more than 200,000, and remains high, which has caused great pressure on my country's urban traffic renovation projects

[0007] In addition, although the installation process of this highly integrated product is relatively convenient and quick, it will be very troublesome to replace when a certain part of the system is damaged or worn out during use. It is very troublesome, and many assembly parts have to be replaced as a whole even if a small part of them is damaged. First, it will cause a lot of waste, and second, it will cause high maintenance costs.

[0008] In addition, these chassis hinge systems are all foreign technologies, and this technology is completely blank in China

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