CN204488813U - For the lightweight bogie truck of subway engineering car - Google Patents

Abstract

Provide a lightweight bogie for subway engineering vehicles, which has a frame, the frame is mainly an H-shaped structure composed of fish-belly side beams and beams, and the side beams and beams are made of high-strength alloy steel plates with a thickness of ≤12mm The middle part of the upper end surface of the frame is equipped with a spherical center plate, and the two sides of the upper end surface of the frame are provided with constant contact friction side bearings. The two ends of the wheel set are supported inside the pivoting arm type axle box through bearings, the axle gear box is installed on the wheel set, the dry rim lubricator is installed on the frame, and the tread unit brake is installed on the inside of the frame. The two ends of the frame are provided with interface seats connected with the detection device. The utility model is a lightweight bogie with a weight of no more than 4.5 tons, which is beneficial to reduce wheel rim wear when running on small radius curves, and can detect the rail profile and line status, has a simple structure and is easy to maintain.

Description

Lightweight Bogies for Subway Engineering Cars

technical field

The utility model belongs to the technical field of manufacturing railway engineering vehicles, in particular to a lightweight bogie for subway engineering vehicles.

Background technique

With the development of my country's urban subway traffic, the requirements for the detection and maintenance of subway lines are getting higher and higher. In the subway line, the maximum axle load of the vehicle is required to be no more than 14 tons. For the engineering vehicles used for the maintenance of the subway lines, the maximum light weight of the bogie means that the required raw materials can be added to the engineering vehicles. Such as increasing the capacity of the water tank, oil tank, and spare parts in the subway rail grinding car, increasing the capacity of the water tank in the tunnel cleaning car, etc., so it is necessary to improve the bogie of the subway engineering vehicle.

Utility model content

The technical problem solved by the utility model is to provide a lightweight bogie used for subway engineering vehicles. The frame of the bogie is made of high-strength alloy steel plates and welded into an H-shaped structure, and a dry wheel rim lubricator is provided on the frame. And the interface seat used to install the detection device forms a weight of no more than 4.5 tons, which is beneficial to reduce wheel flange wear when running on a small radius curve, and can detect the rail profile and line status. It has a simple structure and is easy to maintain. Quantify bogies.

The technical scheme adopted by the utility model: the lightweight bogie used for subway engineering vehicles has a frame, the middle part of the upper end surface of the frame is provided with a spherical center plate, and the two sides of the upper end surface of the frame are provided with constant contact friction side bearings , the frame is connected to the pivoting arm axle box through an elastic node seat, and the pivoting arm axle box is provided with a shock absorber and an axle box spring, and the two ends of the wheelset are supported inside the pivoting arm axle box through bearings, The wheel set is provided with an axle gear box, the frame is provided with a dry wheel rim lubricator, the inner side of the frame is provided with a tread unit brake, and the two ends of the frame are provided with an interface seat connected to a detection device.

Wherein, the frame is mainly an H-shaped structure composed of fish-belly side beams and beams, and the side beams and beams are all made of high-strength alloy steel plates with a thickness of ≤12mm.

Further, the spherical center plate includes an upper center plate, a lower center plate, a pressure block and a center pin, the upper center plate is connected to the vehicle frame through bolts, the lower center plate is fixedly connected to the beam, and the upper center plate and the There is a friction pad in the middle of the lower center plate, a pressure block is provided on the upper part of the upper center plate, one end of the center pin shaft passes through the pressure block and the lower center plate and extends out of the lower center plate, and the block is fixed to one end of the center pin shaft through the pin shaft .

Further, the axle gearbox is supported in the center of the wheel set through bearings, a hydraulic motor is provided on one side of the axle gearbox, and the axle gearbox is connected to the beam through a torque pull rod.

Further, one end of the dry rim lubricator is fixed on the upper end surface of the side beam, and the other end of the dry rim lubricator is close to the rim of the wheel set.

Further, a lifting hook is provided on the outside of the side beam of the frame.

The utility model has the advantages compared with the prior art:

1. The frame of the utility model adopts an H-shaped structure welded by high-strength alloy steel plates, and its weight is not more than 4.5 tons, which effectively reduces the weight of the bogie and meets the requirement that the construction speed of the bogie of the subway engineering vehicle is not less than 100km/h and lightweight requirements;

2. The use of lightweight bogies can increase the volume of the car body, and increase the capacity of materials required for operations while meeting the axle load limit of subway vehicles;

3. Using a dry rim lubricator to lubricate the wheel set is beneficial to reduce wheel rim wear when the vehicle is running on a small radius curve, and has the advantages of simple structure, maintenance-free, no pollution, and reduced noise;

4. There is an interface seat at the end of the side beam, which is convenient for installing detection devices related to the operation such as rail profile detection and line state detection, and realizes the multi-functionalization of subway engineering vehicles;

5. The tread unit brake is installed on the crossbeam close to the inner side of the wheel, which has a compact structure, reasonable use of space, and reliable braking performance;

6. The friction turning moment generated by the rigidity of the constant contact friction side bearing arranged on the upper end surface of the frame can effectively limit the serpentine shape of the vehicle during operation;

7. The center pin shaft on the spherical center plate connects the frame with the frame through the block. When the whole vehicle is lifted during operation, the block is lifted together with the frame to realize the bogie’s unbound recovery;

8. The axle gearbox is connected with the beam through the torque rod, which is used to balance the driving force acting on the wheel set. The torque rod eases the impact force from the rail through the rubber joints at both ends.

Description of drawings

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

Fig. 2 is A-A sectional view of Fig. 1;

Fig. 3 is a schematic diagram of the connection between the utility model and the vehicle frame.

detailed description

Below in conjunction with accompanying drawing 1-3 describe embodiment of the present utility model.

The lightweight bogie used for subway engineering vehicles has a frame 1, and the middle part of the upper end surface of the frame 1 is provided with a spherical center plate 3. Specifically, the spherical center plate 3 includes an upper center plate 301, a lower center plate 302, a pressing block 304 and center pin shaft 305, the upper center plate 301 is connected to the vehicle frame 17 through bolts, the lower center plate 302 is fixedly connected to the beam 102, and a friction pad 303 is arranged between the upper center plate 301 and the lower center plate 302, The upper part of the upper center plate 301 is provided with a pressure block 304, one end of the center pin shaft 305 passes through the pressure block 304 and the lower center plate 302 and extends outside the lower center plate 302, and the clamp block 306 is fixed to the center pin shaft 305 through a pin shaft 307 At one end, when the whole vehicle is lifted during operation, the block 206 is lifted together with the frame 1 to realize the unbound lifting of the bogie; the two sides of the upper end surface of the frame 1 are provided with constant contact friction side bearings 2, and the constant contact The frictional turning moment generated by the rigidity of the frictional side bearing 2 can effectively limit the serpentine shape of the vehicle during operation; A shock absorber 8 and an axle box spring 9 are provided, and the two ends of the wheel set 4 are supported inside the pivot arm type axle box 10 through bearings. The wheel set 4 is provided with an axle gear box 7. Specifically, the axle gear The box 7 is supported in the middle of the wheel set 4 through bearings. A hydraulic motor 5 is provided on one side of the axle gear box 7. The axle gear box 7 is connected to the beam 102 through a torque pull rod 6 to balance the force acting on the wheel set 4. The driving force, the torque pull rod 6 eases the impact force from the rail through the rubber joints at both ends; the frame 1 is provided with a dry rim lubricator 11, specifically, one end of the dry rim lubricator 11 is fixed to the side beam 101, the other end of the dry rim lubricator 11 is close to the top of the wheel rim of the wheel pair 4, and the dry rim lubricator 11 is used to lubricate the wheel pair 4, which is conducive to reducing the vehicle's speed when running on a small radius curve. The rim is worn, and has the advantages of simple structure, maintenance-free, no pollution, and reduced noise; the frame 1 is provided with a tread unit brake 12 on the beam 102 near the inner side of the wheel, which has a compact structure, reasonable use of space, and reliable braking performance; Both ends of the frame 1 are provided with an interface seat 13 that facilitates the installation of detection devices 14 related to operations such as rail profile detection and line state detection, which realizes the multi-functionalization of subway engineering vehicles; Lifting hook 16 is arranged, is used for the hoisting and transshipment of bogie.

The frame 1 of the present utility model is mainly an H-shaped structure composed of fish belly-shaped side beams 101 and cross beams 102. The weight of the bogie is not more than 4.5 tons, which effectively reduces the weight of the bogie and meets the requirements of the construction speed of the bogie of the subway engineering vehicle not less than 100km/h and light weight.

During use, the utility model is installed on the vehicle frame 17 (as shown in Figure 3), when the vehicle is towed, the traction force of the vehicle body is passed to the frame 1 through the spherical center disc 3, and the frame 1 passes through the pivoting arm type axle box 10 The transmission is transmitted to the wheel set 4, so that the vehicle starts to run, wherein the shock absorber 8 and the axle box spring 9 form a series of shock absorption systems necessary for the operation of the vehicle to meet the operation requirements of the vehicle.

For the power bogie (as shown in Figure 1), the hydraulic motor 5 is started, and the hydraulic motor 5 drives the wheel pair 4 to rotate through the axle gearbox 7, and the wheel pair 4 turns the wheel pair 4 through the pivoting arm type axle box 10. It is transformed into the movement of the frame 1, so that the frame 1 drives the vehicle frame 17 to move through the spherical center disc 3.

The foregoing embodiments are only preferred embodiments of the utility model, and are not intended to limit the scope of implementation of the utility model, so all equivalent changes made with the content of the utility model claims should be included in the utility model rights. within the required range.

Claims (3)

1. for the lightweight bogie truck of subway engineering car, there is framework (1), it is characterized in that: in the middle part of the upper surface of described framework (1), be provided with ball center plate (3), the both sides, upper surface of described framework (1) are provided with normal contact friction side bearing (2), described framework (1) is connected with pivoted arm axle box (10) by elastic panel nodes seat (15), described pivoted arm axle box (10) is provided with shock absorber (8) and journal box spring (9), take turns the two ends of (4) inner at pivoted arm axle box (10) by bearings, described wheel is provided with axle gear box (7) to (4), described framework (1) is provided with dry type wheel flange lubricator (11), described framework (1) inner side is provided with tread units drg (12), described framework (1) two ends are provided with the interface block (13) connecting detecting device (14).

2. the lightweight bogie truck for subway engineering car according to claim 1, it is characterized in that: the H type structure that described framework (1) is mainly made up of curb girder (101) and the crossbeam (102) of fish belly type, described curb girder (101) and crossbeam (102) all adopt the high-strength alloy steel plate of thickness≤12mm to make.

3. the lightweight bogie truck for subway engineering car according to claim 1 and 2, it is characterized in that: described ball center plate (3) comprises body center plate (301), truck center plate (302), briquetting (304) and central pin shaft (305), described body center plate (301) is connected with vehicle frame (17) by bolt, described truck center plate (302) is fixedly connected with crossbeam (102), friction pad (303) is provided with in the middle of described body center plate (301) and truck center plate (302), described body center plate (301) top is provided with briquetting (304), described central pin shaft (305) one end is through briquetting (304) and truck center plate (302) and stretch out truck center plate (302) outside, fixture block (306) is fixed on central pin shaft (305) one end by bearing pin (307).