Splitting type truss structure of large-sized hinged joint passenger car

Abstract

The invention discloses a split girder structure which comprises a front girder, a beam, a rotary table bearing, a back girder and a hydraulic cylinder. The front girder is positioned at the rear end of a front carriage of an articulated bus; the rear end of the front girder is connected with the beam through a spherical hinge with rubber poured on the outer surface of the spherical hinge; the beam is fixed on an outer ring of the rotary table bearing through bolts; the back girder is positioned at the front end of a back carriage of the articulated bus; the front end of the back girder is fixed on an inner ring of the rotary table bearing; a hydraulic cylinder is fixed on the right and the left sides of the back girder; one end of the hydraulic cylinder is fixed at the back end part of the back girder; and the other end thereof is fixed on the beam through pins. Since the invention adopts the split structure, the components of the structure are independent of each other and related to each other, so that the manufacturing cost and the maintenance cost are low. Since the front girder and the back girder are articulated through the rotary table bearing and the beam fixed on the rotary table bearing, the rotation of the front carriage and the back carriage in the horizontal direction is realized through the rotary table bearing and the beam when a vehicle steers.

Description

technical field [0001] The invention relates to a split truss structure suitable for 14-25 meters long two-stage or above large-scale articulated passenger cars, especially a split-type truss structure suitable for 14-18 meters long rear-mounted large-scale articulated passenger cars structure. 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]...

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.

Images