CN111469874A - A vehicle-to-vehicle articulation through small curves - Google Patents

Abstract

A vehicle-to-vehicle articulation device passing through a small curve, comprising a first hinged body, a second hinged body, a crown ring, and a slewing bearing, wherein the first hinged body and the second hinged body are respectively installed at the vehicle ends of adjacent vehicle bodies, wherein, The inner ring of the slewing bearing is connected to the first hinged body, the outer ring is connected to the inner side of the crown ring, the middle ring is fixed to the bogie, the second hinged body is connected to the outer side of the crown ring through the elastic bearing connected at both ends, and the three rings of the slewing bearing are rotated with each other. , thereby driving the first hinged main body, the second hinged main body and the bogie connected to the slewing bearing to rotate with each other, so as to increase the rotation angle of the vehicle and improve the ability of the vehicle to pass through small curves. The invention adapts to the reliable connection between medium and high floor articulated light rail vehicles, adapts to various displacements of the vehicles passing through the curve, and can adapt to the rolling, nodding and other movements of the vehicles. The main body of the hinge device is designed with a box-type welded structure, which is lighter in weight than the existing forged/cast products. Except for the elastic bearing integrated in the second hinge body, which needs to be replaced regularly, it is almost maintenance-free in normal use.

Description

A vehicle-to-vehicle articulation through small curves

technical field

The invention belongs to a connecting device between two workshops of rail vehicles, in particular to an articulation device between vehicles that can pass through small curves.

Background technique

At present, the inter-vehicle articulation device used in rail transit articulated vehicles is mainly suitable for low-floor vehicles with low speed grade and low strength. The interface generally requires the upper part of the vehicle to be supplemented by an elastic hinge.

With the rapid development of rail transit, medium and high floor articulated light rail vehicles should be conceived, and the current inter-vehicle articulation device cannot adapt to the reliable connection between medium and high floor articulated light rail vehicles. Therefore, in order to adapt to the reliable connection between medium and high floor articulated light rail vehicles, it is urgent to research and develop an articulation device that can adapt to medium and high floors and can connect vehicles with small curves.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a hinge device suitable for the connection between medium and high floor articulated light rail vehicles, which can realize reliable connection between vehicles, adapt to the movement of vehicles in all directions during operation, has the characteristics of strong curve passing ability, and adapt to Rolling, nodding and other movements of the vehicle.

In order to achieve the above purpose of the invention, the present invention provides an inter-vehicle articulation device that passes through a small curve, which is characterized in that it includes a first hinge body, a second hinge body, a crown ring, a slewing bearing, a first hinge body and a second hinge body. They are respectively installed on the car ends of the adjacent car bodies. The slewing bearing is divided into three rings: inner, middle and outer. Among them, the inner ring of the slewing bearing is connected with the first hinged body, the outer ring of the slewing bearing is connected with the inner side of the crown ring, and the middle ring of the slewing bearing is connected. It is fixed with the bogie, the second hinged body is connected to the outer side of the crown ring through the elastic bearings connected at both ends, and the three rings of the slewing bearing rotate and cooperate with each other, thereby driving the first hinged body and the second hinged body connected with the slewing bearing and the bogie three. They rotate with each other to increase the turning angle of the vehicle and improve the ability of the vehicle to pass through small curves.

The first hinge body is a box-shaped structure, and the upper part of the connection side with the slewing bearing is a hollow cylinder. Below the hollow cylinder is a ring with a diameter larger than that of the hollow cylinder. The surface of the ring is evenly provided with connecting holes. One side of the bearing is a U-shaped structure for connecting the car end.

The second hinge body is an open box-shaped structure with an encircling shape, which is in line with the crown ring, and an elastic bearing is provided on both sides of the connecting end of the crown ring for elastic buffering of the vehicle. The second hinge body is far away from One side of the slewing bearing is a figure-eight structure, which is used to connect the car end.

The crown ring adopts a left-right symmetrical split forging structure, the inner circumference is provided with a connecting groove, the middle part of the upper surface of the circumference is provided with continuous protrusions and grooves, and the everted crown of the crown ring is provided with a connection groove on the circumference. The groove corresponding to the groove on the surface leaves a gap between the everted crown part and the crown body for connecting the second hinge body.

The slewing bearing is a single-row ball type, including an outer ring, a middle ring, an inner ring, and rolling balls, and each ring is provided with sealing strips up and down.

The thickness of the middle ring of the slewing bearing is 160mm, the thickness of the inner and outer rings is 130mm, and the steel ball is in contact with the arc raceway at four points to bear axial force, radial force and tipping moment at the same time.

The elastic bearing adopts the shaft core, the rubber body and the outer casing to be vulcanized into one body, and the integral structure is press-fitted on both ends of the second hinged main body to adapt to the nodding and rolling motion of the vehicle.

The connecting ends of the first hinge body and the second hinge body and the vehicle body are provided with trapezoidal protrusions, which cooperate with the trapezoidal grooves on the vehicle body to increase the vertical bearing capacity.

In the present invention, the first hinged body and the second hinged body are respectively connected with the adjacent vehicle end chassis, the crown ring is connected with the outer ring of the slewing bearing, then the first hinged body is connected with the inner ring of the slew bearing, and the second hinged body is connected with the crown ring Connect, realize the mechanical connection of two adjacent vehicles, and adapt to the reliable connection between the medium and high floor articulated light rail vehicles through the integrated elastic bearing of the slewing bearing and the second hinge body, adapt to the various displacements of the vehicle passing through the curve, and can adapt to the vehicle Rolling, nodding and other movements. Especially the connection design with the slewing bearing can obtain a good horizontal curve passing ability, which can meet the demanding line application requirements of vehicles passing the R25m horizontal curve. The main body of the hinge device adopts a box-type welded structure design, which is lighter in weight than the existing forged/cast products. Except for the elastic bearing integrated in the second hinge body, which needs to be replaced regularly, it is almost maintenance-free in normal use.

Description of drawings

Fig. 1 is the structural representation of the present invention;

2 is a schematic diagram of a first hinge body;

3 is a schematic diagram of a second hinge body;

Fig. 4 is the schematic diagram of crown fitting ring of the present invention;

Figure 5-1 is a schematic diagram of the slewing bearing of the present invention;

Figure 5-2 is a cross-sectional view of Figure 5-1;

FIG. 6 is a schematic diagram of the elastic bearing of the present invention.

Detailed ways

1, 5-1, 5-2, the specific embodiment of the present invention includes a first hinged body 1, a second hinged body 2, a crown ring 3, and a slewing bearing 4. The first hinged body 1 and the second hinged body The connecting ends of the hinged main body 2 and the vehicle body are provided with trapezoidal protrusions 5, which cooperate with the trapezoidal grooves on the vehicle body to increase the vertical bearing capacity. The slewing bearing is divided into three rings: inner, middle and outer. Among them, the inner ring 401 of the slewing bearing is connected to the first hinged body 1, the outer ring 403 of the slewing bearing is connected to the inner side of the crown ring 3, the middle ring 402 of the slewing bearing is fixed to the bogie, and the first ring 402 is fixed to the bogie. The two hinged bodies are connected with the outer side of the crown ring 3 through the elastic bearings 6 connected at both ends, and the three rings of the slewing bearing rotate and cooperate with each other, thereby driving the first hinged body connected with the slewing bearing, the second hinged body and the bogie to rotate with each other, It is used to increase the turning angle of the vehicle and improve the ability of the vehicle to pass through small curves.

Referring to FIG. 2 , the first hinge body is a box-shaped structure, and the upper part of the connection side with the slewing bearing is a hollow cylinder 101 . Below the hollow cylinder 101 is a ring 102 with a diameter larger than that of the hollow cylinder. 103, the side of the first hinge body away from the slewing bearing is a U-shaped structure 104, which is used for connecting the vehicle end.

Referring to FIG. 3 , the second hinge body is an open box-type structure with an encircling shape, which is in agreement with the crown ring, and has a transverse mounting hole at the connecting end of the crown ring, and an elastic bearing 201 is provided in the hole for the vehicle. elastic cushioning.

Referring to Figure 4, the crown ring adopts a left-right symmetrical split forging structure, the inner circumference is provided with a connecting groove 301, the middle part of the upper surface of the circumference is provided with a continuous protrusion 302 and a first groove 303, and the outer circumference of the crown ring is provided with a continuous protrusion 302 and a first groove 303. The inverted crown portion is provided with a second groove 304 corresponding to the first groove on the upper surface of the circumference, and a gap is left between the everted crown portion 305 and the crown body 306 for connecting the second hinge body. Through the conversion of the crown ring, the second hinge body can adopt the elastic bearing, so that the vehicle connection can obtain a certain elastic buffer.

Referring to Figures 5-1 and 5-2, the slewing bearing is a single-row ball type, including an outer ring 403, a middle ring 402, an inner ring 401, and a rolling ball 404, with a compact structure, and each ring is provided with sealing strips up and down 405. The thickness of the three rings is different, the middle thickness is 160mm, and the two sides are 130mm. The steel ball is in contact with the arc raceway at four points, and can bear axial force, radial force and tipping moment at the same time.

Referring to FIG. 6 , the elastic bearing is vulcanized into a whole by using the shaft core 203, the rubber body 204 and the outer casing 205, and then the overall structure is press-fitted on both ends of the second hinged body. Axial stiffness and bending stiffness to accommodate the nodding and roll motion of the vehicle.

During operation, the two hinged bodies are respectively connected with the adjacent vehicle end chassis, the crown ring is connected with the outer ring of the slewing bearing, then the first hinged body is connected with the inner ring of the slew bearing, and the second hinged body is connected with the crown ring. Through the above connection, the mechanical connection of two adjacent vehicles is realized, and the elastic bearing integrated with the slewing bearing and the second hinge body can adapt to various displacements of the vehicle passing through the curve. The hinge device of the present invention is connected with the bogie through a slewing bearing to form an articulated bogie for connecting two vehicles. Compared with conventional urban rail transit vehicles (two vehicles do not share a bogie), the running stability of the vehicle is increased while the number of bogies is reduced.

Claims (8)

1. An inter-vehicle hinge device passing through a small curve, characterized in that: the automobile steering device comprises a first hinge main body, a second hinge main body, a crown-shaped ring and a slewing bearing, wherein the first hinge main body and the second hinge main body are respectively arranged at the automobile end of an adjacent automobile body, the slewing bearing is divided into an inner ring, a middle ring and an outer ring, the inner ring of the slewing bearing is connected with the first hinge main body, the outer ring of the slewing bearing is connected with the inner side of the crown-shaped ring, the middle ring of the slewing bearing is fixed with a bogie, the second hinge main body is connected with the outer side of the crown-shaped ring, the three rings of the slewing bearing are mutually rotationally matched, and therefore the first hinge main body, the second hinge main body and the bogie which are connected with the slewing bearing are driven to mutually rotate, the vehicle rotation angle.

2. An inter-vehicle hinge device by a small curve according to claim 1, wherein: the first hinge main body is of a box-shaped structure, the upper portion of the side, connected with the slewing bearing, of the first hinge main body is a hollow cylinder, a circular ring with the diameter larger than that of the hollow cylinder is arranged below the hollow cylinder, connecting holes are evenly distributed in the surface of the circular ring, and the side, away from the slewing bearing, of the first hinge main body is of a U-shaped structure and is used for being connected with a vehicle end.

3. An inter-vehicle hinge device by a small curve according to claim 1, wherein: the second hinge main body is of an open box-shaped structure, the shape of the second hinge main body is in an encircling shape, the second hinge main body is matched with the crown-shaped ring, two elastic bearings are respectively arranged on two sides of the connecting end of the crown-shaped ring and used for elastic buffering of a vehicle, and one side, far away from the rotary bearing, of the second hinge main body is of a splayed structure and used for connecting a vehicle end.

4. An inter-vehicle hinge device by a small curve according to claim 1, wherein: the crown ring adopts a split forging structure with bilateral symmetry, the inner side circumference is provided with a connecting groove, the middle part of the upper surface of the circumference is provided with a continuous bulge and a continuous groove, the outward-turned crown part of the crown ring is provided with a groove corresponding to the groove of the upper surface of the circumference, and a gap is reserved between the outward-turned crown part and the crown body and is used for connecting the second hinge main body.

5. An inter-vehicle hinge device by a small curve according to claim 1, wherein: the slewing bearing is a single-row ball type and comprises an outer ring, a middle ring, an inner ring and a rolling ball, and sealing rubber strips are arranged on the upper part and the lower part of each ring.

6. An inter-vehicle hinge device by small curve according to claim 5, wherein: the thickness of the middle ring of the slewing bearing is 160mm, the thickness of the inner ring and the outer ring of the slewing bearing is 130mm, and the steel ball is in four-point contact with the arc roller path and is used for simultaneously bearing axial force, radial force and tilting moment.

7. An inter-vehicle hinge device by small curve according to claim 3, wherein: the elastic bearing is formed by vulcanizing a shaft core, a rubber body and a jacket into a whole, and the integral structure is pressed at two ends of the second hinge main body and is used for adapting to nodding and side rolling movement of a vehicle.

8. An inter-vehicle hinge device by a small curve according to claim 1, wherein: the first hinge main body and the second hinge main body are connected with the connecting end of the car body and are provided with trapezoidal bulges which are matched with trapezoidal grooves in the car body, so that the vertical bearing capacity is increased.

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