CN207241717U - A kind of motor car bogie transmission mechanism - Google Patents

Abstract

The utility model discloses a kind of motor car bogie transmission mechanism, it is related to rolling stock technical field.Including gear-box, active wheel disc, driven wheel disc and axle.Gear-box is suspended on flap seat by least two sunpenders, flap seat is located on vehicle body bottom frame or bogie frame, its gear wheel is connected with output shaft, output shaft is connected with active wheel disc, active wheel disc is connected by six bar mechanism with driven wheel disc or wheel cake, driven wheel disc or wheel cake are connected with axle again, constitute the bogie drive mechanism for being different from existing " gear is connected with axle; gear-box one end is suspended on axle ", the unsprung mass of motor car bogie is alleviated, improves the wheel-rail force during motor-car traveling.It is mainly used for bullet train bogie.

Description

A driving mechanism for a bogie

technical field

The utility model relates to the technical field of railway locomotive transmission devices and vehicles.

Background technique

The bogie is one of the most important components in the rail vehicle structure, and has the functions of carrying, driving, buffering, guiding and braking. The EMU bogie usually adopts a two-suspension spring suspension system, and the mass from the wheel set upwards including the wheel set to the part below the primary suspension device is called the unsprung mass of the bogie. When the locomotive passes through the uneven part of the line, it will generate a large wheel-rail force and cause damage to the line. The unsprung mass has a significant impact on the force of the wheel and rail. Reducing the unsprung mass can reduce the force of the wheel and rail, improve the operating conditions of the vehicle and the track, and prolong the life of the vehicle and the line.

In the existing motor car bogie transmission mechanism, the power is transmitted from the traction motor to the pinion gear, and then the torque is transmitted to the driven bull gear through gear meshing to drive the wheelset to rotate. One end of the gear is hung on the beam of the bogie frame through the boom, and the other end is hung on the axle, while the driven gear is directly mounted on the axle, so the mass of the traction gear and half of the mass of the gearbox still belong to the unsprung mass.

It is very necessary to design a new bogie transmission mechanism to further reduce the unsprung mass and improve the force between the train wheel and rail.

Utility model content

The purpose of this utility model is to provide a bogie transmission mechanism for motor vehicles, which can effectively solve the problem of large unsprung mass caused by one end of the gear box being suspended on the axle by the driven gear.

The technical solution adopted by the utility model to realize the purpose of the invention is: a bogie transmission mechanism of a motor car, including an axle, a wheel set and a gear box, the output shaft is a hollow shaft, the axis line of which coincides with the axis line of the axle, and the axle is located at In the inner hole of the output shaft, and the diameter of the inner hole is larger than the diameter of the axle; one end of the output shaft is fixed to the driving wheel, the driving wheel is connected to the driven wheel through a six-bar linkage mechanism, and the driven wheel is fixed to the axle; the gearbox It is a split structure, fixed by the bearing and the output shaft, and the large gear in the gearbox is connected with the output shaft through a key; the upper and lower split joints of the gearbox are flange structures, and the front and rear ends of the flange The through hole is fixed to the hanger on the chassis of the car body or the frame of the bogie through at least two hangers.

The driven wheels can be directly served by the vehicle wheelset.

The hangers can be all located on the car body underframe, all on the bogie frame, or both on the car body underframe and the bogie frame.

The output shaft, the driving wheel and the driven wheel are all coaxial with the axle shaft.

The driven wheels can be acted directly by the vehicle wheelset.

The output shaft is a hollow shaft, and the axle shaft passes through its inner hole, leaving a gap between the hole shafts.

The beneficial effect of the utility model is: the gear box is suspended on the car body chassis or the bogie frame, and the driven gear therein transmits power to the driven wheel through the hollow output shaft, the driving wheel and the six-bar linkage mechanism, thereby The gearbox and gear are no longer suspended on the axle, and their weight is no longer borne by the axle, thereby reducing the unsprung mass of the bogie, improving the force of the wheel and rail, and prolonging the life of the vehicle and the line.

Description of drawings

Fig. 1 is the installation schematic diagram of transmission gear box of the present utility model;

Fig. 2 is a schematic cross-sectional structure diagram of the driving mechanism driving the driven wheel of the utility model;

Fig. 3 is an axonometric view of the transmission mechanism of the driving wheel driving the driven wheel of the utility model;

Fig. 4 is a schematic diagram of the connection of the driving wheel, the connecting rod and the driven wheel of the present invention;

Fig. 5 is an axonometric view of the vehicle wheel set directly driven by the driving wheel of the present invention;

Fig. 6 is a schematic cross-sectional structure diagram of the transmission mechanism of the utility model in which the driving wheel disc directly drives the wheel set of the vehicle.

Detailed ways

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

Example 1

A bogie transmission mechanism for a motor car, mainly composed of a gear box 6, a boom 9, a hanger 11, a driving wheel 4, a six-bar linkage 3, a driven wheel 2 and an axle 1.

In this embodiment, the number of said hangers 11 is 2, all of which are installed on the bogie frame beam, the gear box 6 is suspended on the hangers 11 by two suspenders 9, and the weight of the gear box 6 is determined by the weight of the two groups The boom 9 and the hanger 11 are transmitted to the bogie frame for bearing.

Contain a group of large and small gears meshing with each other and a hollow output shaft 5 in the gear box 6, wherein pinion gear is driving wheel, and bull gear 7 is driven wheel. The large gear 7 is connected with the output shaft 5, and during operation, the two do not move relative to each other. Preferably, the connection mode is a key connection. The output shaft 5 is fixedly supported by bearings 8 at both ends, and the bearings 8 are sleeved in the bearing seat hole of the gearbox 6 casing, and the two ends are closed and limited by end covers.

One end of the output shaft 5 is connected to the driving wheel 4. Preferably, the pipe wall at the end of the output shaft 5 is provided with a threaded hole, and the corresponding position of the driving wheel 4 has a corresponding through hole, and the two are connected by bolts. Reaming holes are also processed on the output shaft 5 and the driving wheel 4, and pins are inserted in the holes for radial positioning and transmission of torque between the two.

There are 6 holes on the driving wheel 4 and the driven wheel 2, the holes on the driving wheel 4 and the driven wheel 2 are arranged in a staggered manner, and the inner surface of the hole is spherical, which is used to install 6 linkage mechanisms; There are spherical rubber plungers at both ends of each connecting rod of the mechanism 3, which are respectively installed in the holes of the driving wheel 4 and the driven wheel 2, and the two are connected together. The six connecting rods are connected in pairs rather than in parallel. The radial rigidity of the spherical plunger is large, so the axis of the driving wheel 4 and the driven wheel 2 will not be misaligned under normal circumstances, and has good stick-slip stability. Since the rubber plungers at both ends of the connecting rod are spherical and have a small deflection stiffness, they can rotate and tilt within a limited range, and a small deflection and deformation can cause a large inclination of the pin and the connecting rod, making the driving wheel 4 and the plane of the driven wheel 2 can have parallel axial displacement and angular rotation between planes, so as to compensate axial lateral movement, vertical displacement and radial runout.

The driven wheel 2 is directly connected to the axle 1, and preferably, the two are installed with an interference hole shaft, and the process can be the same as that of the wheel set, or it can be installed in other ways such as welding.

The working process of this embodiment is: the traction motor outputs the power to the gear box pinion, and the pinion transmits the power to the meshing large gear 7, and the large gear 7 transmits the power to the output shaft 5, and the active drive at the connection end of the output shaft 5 The wheel disc 4 transmits the torque to the driven wheel disc 2 through the six-bar linkage mechanism 3, and then drives the axle shaft 1 to rotate.

Example 2

Accompanying drawing 5 and accompanying drawing 6 expressed the situation of the present embodiment. The transmission principle of this embodiment is the same as that of Embodiment 1, the difference is that there is no separate driven wheel 2 in this embodiment, and the driven wheel 2 is served by a wheel pair 10 . Have 6 holes on the wheel cake of wheel pair 10, the connecting rod one end of six-bar linkage mechanism is installed on the driving wheel disc 4, and the other end is installed in the hole of wheel pair 10 wheel cakes. The connecting rod in this embodiment is basically similar in structure to the connecting rod in embodiment 1, the difference is that the end installation structure is different - there are connecting rod pieces on both sides of the connecting rod in embodiment 1, while the connecting rod in this embodiment is from A cylinder protrudes from the side of one end and is installed in cooperation with the hole on the wheel cake.

The working process of this embodiment is: the traction motor outputs the power to the gear box pinion, and the pinion transmits the power to the meshing large gear 7, and the large gear 7 transmits the power to the output shaft 5, and the active drive at the connection end of the output shaft 5 The wheel disc 4 transmits the torque to the wheel pair 10 through the six-bar linkage mechanism 3, and then drives the axle 1 to rotate, so that the two wheels move synchronously.

Claims (4)

1. a kind of motor car bogie transmission mechanism, including axle (1) and wheel are to (10) and gear-box (6), it is characterised in that：Output Axis (5) is hollow shaft, its axial line is overlapped with the axial line of axle (1), and axle (1) is located in the endoporus of output shaft (5), and should Diameter of bore is more than the diameter of axle (1)；One end of output shaft (5) is fixed with active wheel disc (4), and active wheel disc (4) passes through six Linkage (3) is connected with driven wheel disc (2), and driven wheel disc (2) is fixed with axle (1)；Gear-box (6) is Split type structure, is led to Cross bearing (8) to fix with output shaft (5), the gear wheel (7) in gear-box (6) passes through key connecting with output shaft (5)；Gear-box (6) upper and lower split engaging portion is turnup structure, and the front and back ends of the flange are equipped with through hole, by least two sunpenders (9) with Flap seat (11) is fixed on vehicle body bottom frame or bogie frame.

A kind of 2. motor car bogie transmission mechanism according to claim 1, it is characterised in that：The driven wheel disc (2) can Directly to be served as by car wheel-set (10).

A kind of 3. motor car bogie transmission mechanism according to claim 1, it is characterised in that：The flap seat (11) both can be with It is entirely located on vehicle body bottom frame, can also be entirely located on bogie frame, vehicle body bottom frame and bogie can also be located at the same time On framework.

A kind of 4. motor car bogie transmission mechanism according to claim 1, it is characterised in that：The output shaft (5), active Wheel disc (4), driven wheel disc (2) are coaxial with axle (1).