CN202400094U - Four-shaft tramcar with local low floor - Google Patents

Abstract

A local low-floor four-axle tram, which solves the defect that the floor surface of the existing tram body is higher than the bogie, which makes it inconvenient for passengers to get on and off the car. Underframe, the body with glass windows and floor, the technical points are: the floor in the body is divided into three parts: the front and rear cab area and the middle passenger area, the floors of the front and rear cab area are respectively set on the bogie support The floor of the passenger area is set on the middle low-step bottom frame along the inner edges of the two cab areas. The two ends of the passenger area floor on the middle low-step bottom frame are respectively connected to the front , and the floor of the rear cab area. The structural design of the underframe is reasonable, there is no need to set up a low platform or install a step ladder on the vehicle, passengers can get on and off directly, and move quickly and safely, which is not only conducive to the passage of other vehicles, but also saves the construction cost of the tram line .

Description

Partial low-floor four-axle tram

technical field

The utility model relates to a tram, in particular to a partially low-floor four-axle tram which is suitable for running on a tramway where people and vehicles are mixed and has no platform.

Background technique

At present, energy saving and emission reduction has become the focus of common attention of all countries in the world, and trams are being favored and will be put into use in large quantities. This not only conforms to the national development theme of "science and technology, humanities, ecology, and high efficiency", but also represents the development of modern transportation. trend. The most common type of tram is a low-floor car. Due to the limitation of transmission system and electrical equipment layout, it is divided into 50%~70% low floor and 100% low floor. It is often determined by the ratio of the area of the low floor part to the area of the passenger area. The common ratio is 50-70%; if it is equal to 1.0, it is called 100% low floor. Non-low-floor vehicles usually need to set up a platform or install a step ladder on the vehicle to facilitate passengers to get on and off. At present, the common four-axle single tramcar mostly adopts the chassis connected by two four-wheel bogies through the mandrel, and the structure of the body with glass windows and floor assembled on the chassis, with glass windows The length of the body and the floor is generally about 10-16 meters. Two axles with wheels are installed on each bogie, and the driving device transmits the driving power of the vehicle directly to the wheels through the axles. The floor of the existing body is mounted on top of the tram chassis and consists of a large flat surface. Since the floor is installed on the two four-wheel bogies, the height of the floor surface is higher than that of the wheels, causing the floor surface in the vehicle body to be higher than the rail surface, usually 0.8 to 1.1 meters above the rail surface. On sections of roads without platforms, passengers need to go up a step ladder with several steps to reach the vehicle body, which is very inconvenient for passengers (especially disabled people) to get on and off the bus. For this reason, just need to set higher platform, this platform can cause certain obstacle to the passage of other vehicles in the road traffic mixed road section, has also increased the construction cost of tram line. the

In our country, 50% to 70% of low-floor technology is being used for the existing articulated light rail cars with more than 6 axles, but the four-axle tram still adopts the high-floor form so far. Therefore, developing a kind of 70% low-floor four-axle tram has always been a new problem that needs to be solved badly at home and abroad.

Utility model content:

The purpose of this utility model is to provide a four-axle tramcar with a partial low floor, which solves the defect that the floor surface of the existing tram body is higher than the bogie, which makes it inconvenient for passengers to get on and off the car. The design is reasonable, there is no need to set up a low platform or install a step ladder on the vehicle, and passengers can get on and off directly, moving quickly and safely, which is not only conducive to the passage of other vehicles, but also saves the construction cost of the tram line.

The technical scheme adopted by the utility model is: the local low-floor four-axle tram includes an underframe connected by two four-wheel bogies through a mandrel, and a body with glass windows and a floor assembled on the underframe, The technical points are: the floor in the vehicle body is divided into three parts: the front and rear cab areas and the middle passenger area. On the underframe, the floor of the passenger area is a partial low floor, which is set on the intermediate low-level underframe along the inner edges of the two cab areas, and the two ends of the partial low-floor on the intermediate low-level underframe pass through the steps They are respectively connected to the floors of the front and rear cab areas on the high-level chassis.

The advantages and positive effects of the utility model are: since the floor in the vehicle body of the utility model is divided into three parts, the front and rear driver's cab areas and the middle passenger area, which are respectively arranged on the stepped chassis, the two four-wheel steering The frame is set on the high-level underframe under the front and rear cab areas at both ends of the vehicle body. The area between the two bogies is exactly the area of the middle low-level underframe along the inner edges of the two cab areas. The floor The height from the surface to the rail surface meets the requirements of the local low floor, and the ratio of the area of the low floor to the area of the passenger area reaches 70-90%, so the structural design of the underframe is reasonable, and there is no need to set a low platform or install pedals on the vehicle Passengers can get on and off directly through the stairs, moving quickly and safely, which saves the construction cost of the tram line. In particular, it can easily meet the needs of the disabled to get on and off the car, and it is also conducive to the passage of other motor vehicles on roads with mixed traffic. Therefore, it solves the defect that the height of the floor surface of the existing electric car body is higher than that of the bogie, which makes it inconvenient for passengers to get on and off the car.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is a kind of structural representation of the utility model;

Fig. 2 is a top view of the underframe of the vehicle body in Fig. 1 with the body removed.

The serial numbers in the figure illustrate: 1. body, 2. chassis, 3. bogie, 4. driver's seat, 5. spindle, 6. wheel, 7. driving device, 8. axle, 9. passenger area, 10. cab area, 11. steps.

Specific implementation method

The specific structure of the utility model is explained in detail according to Fig. 1-2. This partial low-floor four-axle tram comprises an underframe 2 that is inserted and connected by two four-wheel bogies 3 through a mandrel 5, and is assembled on the underframe 2 with glass windows, doors, and floors (not shown in the figure). ) and the body 1 of the driver's seat 4 and other parts. Wherein the specifications and shapes of the underframe 2, the bogie 3 and the vehicle body 1 should be set according to actual needs and possible. The floor in the vehicle body 1 is divided into front and rear cab areas 10 and the middle passenger area 9 three parts. The underframe corresponding to the vehicle body 1 is also set to a stepped type with high sides and low middle. According to the design requirements, the floors of the front and rear cab areas 10 are respectively arranged on the high-level underframes where the two four-wheel bogies 3 are inserted and connected through the mandrel 5, and the floors of the front and rear cab areas 10 above the bogies 3 The surface is about 0.8 meters away from the height of the rail surface, and the floor surface height of the passenger area 9 arranged on the middle low-order underframe along the inner edges of the two cab areas 10 is about 0.35 meters from the rail surface, so that the height of the passenger area 9 The ratio of the area of the low floor to the area of the passenger area is 70-90%. The two ends of the local low floor on the middle low-order chassis are connected to the floors of the front cab area, the middle low floor area 9, and the rear cab area 10 on the high-order chassis through step steps 11, and the steps Step 11 can carry out walking up and down.

Claims (1)

1. four tramway trains of a local low floor; Comprise by two bogie units through axle bonded assembly underframe; Be assembled in the vehicle body that has glass port and floor on the underframe; It is characterized in that: the floor in the said vehicle body is divided into forward and backward operator's compartment district and middle passenger zone three parts; The floor in forward and backward operator's compartment district is separately positioned on two bogie units through on the axle bonded assembly high-order underframe; The passenger zone floor is local low floor, be arranged on along on the middle low order underframe of the inward flange underlying in two operator's compartment districts, the both ends of the local low floor on the middle low order underframe through mark time step respectively with the high-order underframe on the floor in forward and backward operator's compartment district be connected.

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