CN201347087Y - Opposite angle stayed connecting mechanism for railway vehicle wheel set - Google Patents

Abstract

A railway vehicle wheel pair diagonally cable-stayed connection mechanism, characterized in that a tie rod seat (3 ), the two ends of the oblique tie rod (4) are hinged on the tie rod seat (3) through hinge parts. This mechanism can decouple the shear stiffness between the two wheel sets of the same bogie and the oscillating stiffness, and significantly improve the shear stiffness without affecting the oscillating stiffness, so as not to affect the curve passing performance of the vehicle , improve the stability of the vehicle running.

Description

Diagonal cable-stayed connection mechanism for railway vehicle wheels

technical field

The utility model relates to a mechanism for a railway vehicle bogie.

Background technique

The wheel sets of existing railway vehicles are positioned relative to the frame through elastic suspension components. Mainline freight vehicle bogies are generally two-axle bogies (that is, one frame corresponds to two wheel sets). For freight cars, the frame of the bogie is directly supported on the saddle, and the saddle is supported on the wheel axle bearing Above, through the contact friction between the frame of the bogie and the bearing saddle, the lateral and longitudinal movement of the wheel set and the oscillating movement of the rotation along the vertical axis are restricted. For passenger cars and locomotives, the frame of the bogie is supported on the axle box of the wheel set through the axle box spring suspension device, and realizes the lateral and longitudinal positioning between the bogie and the wheel set. When one of the wheel pairs moves laterally or rotates around the vertical axis relative to the other wheel pair (also known as shaking head movement), due to the constraints of the bogie frame, the wheelset has a shear stiffness and a major force generated mainly by lateral movement. The oscillating stiffness, shear stiffness, and oscillating stiffness generated by the oscillating motion significantly affect the straight-line running stability and curve passing performance of the railway vehicle, respectively. They are ultimately determined by the suspension parameters of the elastic positioning of the wheel set, that is, the contact friction between the bearing saddle and the frame or the stiffness of the suspension device composed of springs and pull rods between the frame and the axle box. Since the shear stiffness and the shaking head stiffness are guaranteed by the same components, there is a strong correlation between the two, so that the shear stiffness and the shaking head stiffness change in the same direction, that is, when the shear stiffness increases, the shaking head stiffness will increase accordingly. However, in order to ensure the good curve passing performance of the vehicle, it is usually required that the shaking head stiffness between the wheelsets be small, but because it is related to the shear stiffness, the shear stiffness is also reduced accordingly, and the decrease of the shear stiffness is not conducive to the stability of the vehicle. Runs smoothly in a straight line. Therefore, there is a need for a device capable of decoupling the shear stiffness and oscillating stiffness of the wheelset so that it can meet the different requirements of the shear stiffness and oscillating stiffness.

Utility model content

The purpose of this utility model is to provide a railway vehicle wheel pair diagonally cable-stayed connection mechanism, which can decouple the shear stiffness and oscillating stiffness between two wheel pairs of the same bogie, without affecting the oscillating stiffness. Under this condition, the shear stiffness is significantly improved, so as to improve the running stability of the vehicle without affecting the curve passing performance of the vehicle.

The utility model achieves the purpose of the invention, and the adopted technical solution is: a railway vehicle wheel pair diagonally cable-stayed connection mechanism, whose structural characteristics are: axle boxes or axle boxes on different sides of the front and rear wheel pairs of the bogie A tie rod seat is arranged on the bearing saddle, and the two ends of the oblique stay rod are hinged on the tie rod seat through hinge parts.

Working process and principle of the present utility model are: the mechanism of the present utility model is added on the wheel pair of existing vehicle. Since the diagonal tie rods directly articulate the front and rear wheelsets on the same bogie obliquely together, when one wheel set moves laterally relative to the other wheel set, due to the restraint of the diagonal tie rods, the shear stiffness of the relative lateral movement between them will be A significant increase. When the left and right shaking movement occurs between the two, since the diagonal tie rods are vertically hinged on the two opposite wheel rails of the same bogie, the shaking movement of the wheelset is not restricted, thereby not affecting the shaking head stiffness between the wheelsets.

Compared with the prior art, the beneficial effects of the utility model are:

1. On the basis of the existing bogie, the transverse shear stiffness between the wheel sets is improved. Because it does not change the oscillating head stiffness and the curve passing performance of the vehicle bogie, the utility model can first design and manufacture a bogie that meets the specified oscillating head stiffness so that it can meet the curve passing performance of the vehicle, and then design and manufacture according to the requirements The mechanism of the utility model with a specific rigidity can make the shear rigidity of the wheel set meet the requirements, so that the curve passing performance and straight line stability of the vehicle can reach the best state.

2. Since the mechanism described in the utility model realizes the decoupling of the shaking head stiffness and the shearing stiffness, the cooperation of the shearing stiffness and the shaking head stiffness in a larger range can be realized, so that the freight steering can be realized in a wider range The optimized design of a series of positioning and suspension parameters of the frame and passenger bogie is beneficial to the development of high-speed and heavy-haul railways.

3. The utility model only needs to obliquely connect a diagonal tie rod between the existing two wheel pairs, without other modifications to the existing bogie, and is easy to implement.

The above-mentioned tie rod seat and the two ends of the oblique tie rod are hinged hinged joint bearings.

The above-mentioned tie rod seat is hinged with the two ends of the oblique tie rod, and the hinge part is a rubber joint.

The use of existing mature joint bearings and rubber joints can not only make the hinged parts of the diagonal stays easy to install, rotate flexibly and reliably, but also conveniently select joint bearings and rubber joints with required parameters to obtain the required increase in shear stiffness. quantity.

The shape of the above-mentioned diagonal stay rod is a shape that can avoid other parts in the bogie. In this way, the utility model does not affect the normal operation of the existing bogie, and also makes the implementation and installation of the utility model more convenient.

The utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is a top view structural diagram of Embodiment 1 of the utility model.

Detailed ways

Embodiment one

Fig. 1 shows that a specific embodiment of the present invention is: a railway vehicle wheel pair diagonally cable-stayed connection mechanism, on the axle boxes 2 on different sides of the front and rear wheel pairs 11, 12 of the bogie A tie rod seat 3 is provided, and both ends of the oblique tie rod 4 are hinged to the tie rod seat 3 through hinge parts. The articulated parts that are hinged at the two ends of the tie rod seat 3 and the diagonal tie rod 4 are joint bearings. The shape of the diagonal tie rod 4 is a shape that can avoid other parts in the bogie, such as a zigzag in Fig. 1 . The structure of this example is suitable for the passenger car or locomotive that axle box is installed on the wheelset.

Embodiment two

This embodiment is basically the same as Embodiment 1, the only difference is that the tie rod seat 3 is set on the load saddles on different sides of the front and rear wheel pairs 11, 12 of the bogie. The articulated parts that are hinged at the two ends of the tie rod seat 3 and the diagonal tie rod 4 are rubber joints. The structure of this example is suitable for the freight car that bearing saddle is installed on the wheelset.

Claims (4)

1, a kind of railway vehicle wheel draws bindiny mechanism to diagonal member, it is characterized in that: draw-bar seat (3) is set at the front and rear wheel of bogie truck on to the axle box (2) of the not homonymy on (11,12) or adapter, the two ends of digonal link (4) are articulated on the draw-bar seat (3) by articulated section.

2, railway vehicle wheel according to claim 1 draws bindiny mechanism to diagonal member, it is characterized in that described draw-bar seat (3) is an oscillating bearing with digonal link (4) two ends pivotally attached articulated section.

3, railway vehicle wheel according to claim 1 draws bindiny mechanism to diagonal member, it is characterized in that described draw-bar seat (3) is a rubber arthrosis with digonal link (4) two ends pivotally attached articulated section.

4, according to claim 1 or 2 or 3 described railway vehicles wheel diagonal member is drawn bindiny mechanism, it is characterized in that, described digonal link (4) be shaped as the shape that can avoid miscellaneous part in the bogie truck.