WO2013139306A1

WO2013139306A1 - Supporting device of connecting rod of bogie, bogie and truck

Info

Publication number: WO2013139306A1
Application number: PCT/CN2013/073076
Authority: WO
Inventors: 尹平伟; 刘振明; 徐世锋; 邵文东; 李立东; 穆凤军; 段仕会
Original assignee: 齐齐哈尔轨道交通装备有限责任公司
Priority date: 2012-03-23
Filing date: 2013-03-22
Publication date: 2013-09-26
Also published as: CN102602415B; CN102602415A

Abstract

A supporting device of a connecting rod of a bogie, a bogie, and a truck. The supporting device comprises a rigid connecting body (40) and four connecting rods (10). The shape of the rigid connecting body (40) is annular; the four connecting rods (10) are arranged on two sides of the rigid connecting body (40) respectively; two connecting rods (10) on the same side are pivotally connected on the rigid connecting body (40) respectively to form a U-shaped connecting rod mechanism; and four pivotal axes are in the vertical direction. In the supporting device of the connecting rod of the bogie, the bogie and the truck, because the rigid connecting body (40) is annular, the rigid connecting body (40) can be sleeved on the outer side of a centre plate (22) of a swing bolster (20), or can cooperate with a swing bolster structure well after passing through preformed holes (21) on two sides in the middle of the swing bolster, so as to ensure the strength of the swing bolster.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bogie mechanical structure technology, and more particularly to a bogie link support device, a bogie, and a truck. Background technique

Currently, the most common bogies on railway wagons are three-piece two-axle bogies, including bolsters, side frames and wheel sets. The vehicle body and its load are applied to the bogie through the bolster core plate, and the curve is rotated between the upper and lower center plates. However, the three-piece two-axle bogie has a low resistance to rock due to the connection between the side frame and the bolster. Therefore, the side frame is prone to "diamond dislocation" with the wear of the damper. The "diamond misalignment" of the bogie side frame will result in a reduction in the critical speed of the vehicle's serpentine motion, thereby reducing operational stability and increasing wheel and rail wear. When the vehicle is running on the railway curve, the adverse consequences of the "diamond misalignment" of the side frame are more serious.

Connecting the connecting rod support device between the two side frames of the bogie is an effective means to improve the rigidity of the three-piece bogie of the railway wagon, which can improve the dynamic performance of the vehicle and effectively improve the running speed of the vehicle. The side frame connecting rod support devices for improving the anti-diamond rigidity of the bogie are commonly used: Turn 8 AG, 8G, 8AB, 8B, K2 and K6 bogies are used for the lower cross-link support device. The K1 type bogie uses a middle cross link support device.

The middle cross-link support device for the K1 bogie is placed in the middle of the bogie and passes through the abdominal cavity in the middle of the bolster. The specific structure is shown in Figure 1.

The middle cross link support device is disposed in the middle of the bogie, and the two links 10 pass through the reserved holes 23 in the abdomen of the bolster 20 and meet in the middle of the abdominal cavity of the bolster 20. 2 is a cross-sectional view of the central portion of the bolster in the cross-link support bogie of FIG. Since the reserved hole 23 needs to be provided, the middle portion of the bolster 20 is a cavity, and the reinforcing ribs that bear the vertical load cannot be provided to avoid interference with the connecting rod. In the operation of the bogie, the bolster mainly bears the vertical load applied to the core plate. Therefore, the bolster without the vertical rib structure in the middle of the abdominal cavity shown in Fig. 2 can only transmit the vertical load on the side wall. Its intensity is usually weakened more. The bolster of this structure is not reasonable from the perspective of the vertical force, and in order to ensure the strength, the thickness of the bolster side wall must be increased, so that The weight of the bolster is increased more, which is not conducive to reducing its own weight. Summary of the invention

The present invention provides a bogie link support device, a bogie and a truck to optimize the structure of the link support device and reduce its effect on the strength of the bolster in the bogie.

Embodiments of the present invention provide a bogie link supporting device, including:

a rigid connector, the rigid connector has a ring shape;

Four connecting rods are respectively disposed on two sides of the rigid connecting body, and two connecting rods on the same side are respectively pivotally connected to the rigid connecting body to form a U-shaped connecting rod mechanism, and the four pivot axes are all vertical direction.

An embodiment of the present invention provides a bogie including a bolster, a side frame and a wheel pair. The two side frames are respectively connected to two ends of the bolster, and further includes a bogie link support provided by the present invention. The two connecting rods on the same side are fixedly connected to the side frames on the same side.

Embodiments of the present invention also provide a truck including the bogie provided by the present invention. The bogie link supporting device, the bogie and the truck provided by the invention can be sleeved on the outer side of the heart plate of the bolster or through the reserved holes on both sides of the middle position of the bolster, since the rigid connecting body is annular. It can be well matched with the bolster structure to ensure the strength of the bolster. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic structural view of a bogie of a prior art lever support device; FIG. 2 is a cross-sectional view of a central portion of a bolster in a cross-link support bogie of FIG. 1; FIG. 4 is a schematic structural view of a bogie connecting rod supporting device disposed in a middle portion of a bolster according to an embodiment of the present invention; FIG.

Fig. 5 is a schematic view showing the structure of a bogie link supporting device disposed above a bolster according to an embodiment of the present invention. detailed description

Embodiment 1

3 is a schematic structural view of a bogie connecting rod supporting device according to Embodiment 1 of the present invention, The bogie link support device includes a rigid connector 40 and four links 10. The rigid connecting body 40 has a ring shape; the four connecting rods 10 are respectively disposed on two sides of the rigid connecting body 40, and the two connecting rods 10 on the same side are respectively pivotally connected to the rigid connecting body 40 to form a U-shaped connecting rod mechanism. The four pivot axes are all in the vertical direction.

When the bogie link supporting device provided in this embodiment is disposed on the bogie, the four connecting rods are respectively fixed on the two side frames to achieve the anti-diamond deformation effect. The connection between the connecting rod and the rigid connecting body is a movable connection, which may be a round pin connection, or other form of pivoting.

The embodiment of the invention provides a double U-shaped side frame connecting rod supporting device, wherein one end of the four connecting rods is fixedly connected to the side frame or the connecting rod supporting plate integrally formed with the side frame, and the other end is connected to the center of the bogie On the rigid connector, the two links on one side of each side frame and the rigid connector form a U shape. The principle of the U-shaped connecting rod supporting device to resist deformation of the rock is basically the same as that of the crossed connecting rod. The connecting rod and the side frame are fixedly connected, so that the U-shaped structure on each side cannot be deformed, and the rigid connecting body has two U-shaped structures. Connected to form a double U-shaped rigid mechanism. When the two sides of the frame are diamond-shaped dislocation, the double U-shaped rigid mechanism will act to resist the displacement, and the two sides of the frame will be maintained in a positive position, that is, the rigidity of the bogie is increased.

In the present embodiment, the shape of the rigid connecting body may be a ring or a rectangular ring, or may be other shapes as long as it has a hollow portion in a ring shape. On the one hand, the annular rigid connecting body still ensures the original anti-diamond deformation function of the link supporting device. On the other hand, the bogie connecting rod supporting device of the structure can optimize the cooperation with the bogie bolster.

FIG. 4 is a schematic structural view showing a bogie link supporting device disposed in a middle portion of a bolster according to an embodiment of the present invention, and forming a so-called middle cross link supporting manner. The two sides of the intermediate position of the bolster 20 are respectively provided with a reserved hole 21 through which the portions of the rigid connecting body 40 between the same side connecting rods 10 respectively pass. The reserved holes 21 are generally gap-fitted with the rigid connecting body 40 and are not in contact.

Since the annular rigid connecting body can pass through the reserved holes on both sides of the middle position of the bolster, an empty abdominal cavity is not required to be formed in the middle of the bolster to accommodate the intersecting connecting rods. Therefore, the middle portion of the bolster can be provided with a reinforcing rib or the like. To improve the strength, the structure is more reasonable from the perspective of the vertical force, without increasing the thickness of the middle of the bolster to compensate for the weak strength of the middle of the bolster, so that the weight of the bolster can be reduced. The rigid connecting body is preferably arranged in multiple parts in a separate manner, and the parts are rigidly connected, for example welded. The rigid connectors provided separately are more conveniently combined through the reserved holes. Embodiment 2

5 is a schematic structural view of a bogie connecting rod supporting device provided on an upper part of a bolster according to a second embodiment of the present invention. In this embodiment, the connecting rod supporting device is disposed above the bolster 20, and the annular rigid connecting body 40 sets. It is provided on the outer side of the core disk 22 of the bolster 20. When disposed above, the rigid connector 40 preferably has a circular shape that matches the shape of the core disk 22.

The bogie link supporting device provided in this embodiment has a rigid connecting body which is annular, so that it can be sleeved on the outer side of the bolster's core plate, and can be well matched with the bolster's own structure, which can effectively save space. In actual use, the bogie link support device can also be placed under the bolster, which can also play a good role in anti-diamond deformation.

The embodiment of the invention further provides a bogie comprising a bolster, a side frame and a wheel pair, the two side frames being respectively connected at two ends of the bolster. The bogie also includes the bogie link supporting device provided by any embodiment of the present invention, and the two links on the same side are fixedly connected to the side frames on the same side.

Preferably, the connecting rod 10 is fixedly coupled to the link supporting plate 12 by bolts 11, and the connecting rod supporting plate 12 is integrally formed or welded by the side frame 30, as shown in Figs. 4 and 5. The connecting rod 10 and the connecting rod support plate 12 are rigidly connected, and may be connected by two or more bolts, rivets, or welded joints, or other fixed manners.

When the cross-link support mode is used, the two sides of the intermediate position of the bolster 20 are respectively provided with the reserved holes 21, and the portions of the rigid connecting body 40 between the same-side links 10 respectively pass through the two reserved holes 21 , As shown in Figure 4. When the bogie link supporting means is disposed in the middle of the bolster 20, it is preferably provided in a rectangular ring shape so as to pass through the reserved hole 21.

When the upper cross link supporting mode is used, the link supporting device is disposed above the bolster 20, and the annular rigid connecting body 40 is sleeved on the outer side of the core plate 22 of the bolster 20, as shown in FIG. When the link support means is disposed above the bolster 20, the rigid connector 40 preferably has a circular shape that matches the shape of the core disk 22.

In practical applications, the bogie link support device can also be placed under the bolster to form a lower cross link support. At this time, the rigid connecting body can also be provided in a structure of different shapes and sizes.

The bogie link supporting device of the present invention can be applied to various types of bogies, such as Zhu 8 AG, Zhu 8G, Zhu 8AB, Zhu 8B, Zhuan K2 and Zhuan K6.

An embodiment of the present invention further provides a truck, including the turn provided by any embodiment of the present invention. To the shelf.

The technical solution of the invention solves the problem that the design space under the bogie bolster is limited and the lower cross support device cannot be used, and the problem of the bogie of the middle cross link support device is also solved, that is, the middle part of the middle sac is fixed The cavity, which has a weak vertical load capacity, thus increases the thickness of the bolster sidewall, which increases the quality of the bolster and increases the weight of the vehicle. The bogie link supporting device of the invention can be applied to various side frame connecting structures, can prevent the bogie deformation of the bogie, improve the running stability of the vehicle, can change the vertical and horizontal dynamic performance of the vehicle, and improve the curve passing performance. Increase the critical speed of the bogie's motion.

It should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

Claim

A bogie link supporting device, comprising:

a rigid connector, the rigid connector has a ring shape;

2. The bogie link support device according to claim 1, wherein: the rigid connecting body has a ring shape or a rectangular ring shape.

3. The bogie link supporting device according to claim 1, wherein: the rigid connecting body is provided in a plurality of parts, and the portions are rigidly connected.

A bogie comprising a bolster, a side frame and a wheel pair, wherein the two side frames are respectively connected to the two ends of the bolster, and further comprising the method of any one of claims 1-3 The bogie link supporting device has two connecting rods on the same side fixedly connected to the side frames on the same side.

The bogie according to claim 4, wherein: the link is fixedly coupled to the link support plate by bolts, and the link support plate is integrally formed or welded to the side frame.

The bogie according to claim 4, wherein: two sides of the intermediate position of the bolster are respectively provided with reserved holes, and the portions of the rigid connecting body located between the same side links respectively pass through two Reserved holes.

7. The bogie according to claim 4, wherein: the link supporting device is disposed above the bolster, and the annular rigid connecting body is sleeved on the outer side of the bolster.

A truck characterized by comprising the bogie according to any one of claims 4-7.