RU206020U1 - SELF-LOADING EIGHT-AXLE RAILWAY - Google Patents

Abstract

The utility model refers to self-unloading eight-axle railway cars, including two pairs of four-axle bogies (1), on which a body (2) is installed, which has an upper frame (3) with end walls (4) and flaps (5) installed on it, resting on lower frame 6 with devices for lifting the upper frame (8). The technical result is to improve the fit of the self-unloading eight-axle car into the curved sections of the track, while reducing the tare weight of the car, is achieved by using a screw jack (7) as a device for lifting the upper frame (8). Each screw jack (7) can be equipped with a drive shaft (12) to ensure its kinematic connection with a separate drive motor (14). A variant of implementation is possible, in which one drive motor (14) is installed at the unloading point, with the possibility of connecting through a detachable connection to the drive shaft (12) passing through the holes (13) of the trunnions (8) and serving to ensure the operation of screw jacks (7) ... 7 p.p. f-ly, 5 dwg

Description

This utility model relates to railway transport and can be used in self-unloading wagons with a large load capacity.

Known are various self-unloading railway cars for transportation on railway rails and automated unloading of bulk and lumpy cargo, for example, rocks, coal-ore cargo, soil, sand, etc.

Known self-unloading eight-axle railway car 2VS-180 (AI Loginov, NE Afanaskin. "Dump cars", Engineering, M., 1975, p. 115, Fig. 73) with a carrying capacity of 180 tons, created for heavy working conditions when transporting rocks and ores with a bulk weight of 2.0 - 2.25 t / m ³ , in which two unloading pneumatic cylinders are located between four-axle bogies and one pneumatic cylinder is installed at the ends of the body. The body tilt mechanism consists of eight (four on each side) pneumatic unloading cylinders and storage tanks with pneumatic equipment. The cylinders are hinged to the bottom frame. With the help of pneumatic cylinders, the body of the self-unloading car is tilted by 45 °. The disadvantages of this dump car can be attributed to the fact that it does not fit well into the curved sections of the track due to the large cantilever part between the automatic coupler and the center plate of the four-axle bogie (4700 mm). Pneumatic unloading cylinders, spare tanks with pneumatic equipment complicate the design of the car, increase the weight of the container, and require complex and expensive maintenance.

The closest analogue is a self-unloading railway car (RU 2601759 C1, B61D 9/02, publ. 09/04/2013). The eight-axle dump car contains a body, a pair of four-axle bogies, each of which consists of a pair of two-axle bogies connected by a connecting beam, four unloading pneumatic cylinders. This self-unloading rail car has a reduced length. For these purposes, two middle pneumatic cylinders are installed between four-axle bogies, two other pneumatic cylinders are installed between two-axle bogies, they are made with a shorter rod stroke, therefore, when unloading, first, their rods reach their full length and their pressure on the body stops, and further lifting is carried out by middle cylinders ... Such a two-stage system during operation can lead to malfunctions of the unloading mechanism due to uneven distribution of forces. Access to cylinders located between biaxial bogies is difficult and may require removal of bogies to service them. Pneumatic cylinders have large dimensions and for their placement between four-axle bogies it is necessary to have a sufficiently large distance, which in turn can worsen the fit of the car into curved track sections. The need to use pneumatic cylinders, spare tanks, negatively affects the weight of the car container.

The technical result of the utility model is to improve the fit of the self-unloading eight-axle car into the curved track sections. A decrease in the tare weight of the car is also achieved.

The specified technical result is achieved by the design of a self-unloading eight-axle railway car, including a pair of four-axle bogies, on which a body is installed, which has an upper frame with end walls and drop sides mounted on it, resting on the lower frame, equipped with mechanical devices for lifting the upper frame. In accordance with the utility model, mechanical devices for lifting the upper frame are made in the form of screw jacks, which are located at the ends of the body and between the four-axle bogies, while the screw jacks are mounted on the lower frame, using a trunnion mounted in a bracket mounted on the lower frame. the jack screw is pivotally connected to the upper frame through the lugs, while the screw jack is equipped with a drive shaft passed through a through hole coaxially made with the pivot axis and connected to the drive motor.

The use of screw jacks, which are mechanical devices, relative to the pneumatic cylinders used in the prototype, can significantly reduce the dimensions of the lifting device. Small overall dimensions allow placing screw jacks at the ends of the body without increasing the dimensions of the cantilever part of the car. The small dimensions of the screw jacks allow them to be placed in the central part of the body and to reduce the overall length of the car. This technical solution makes it possible to improve the fit of the self-unloading eight-axle car into curved track sections. Reducing the dimensions of screw jacks can significantly reduce the tare weight of a self-unloading eight-axle car.

Mounting of screw jacks to the lower frame using trunnions mounted on brackets mounted on the lower frame, and to the upper frame using screws through the lugs with a pivot joint, allows the use of a mechanical screw jack to lift the car body. The use of the proposed fastening elements does not lead to an increase in the dimensions and length of the car.

The presence of a drive shaft at the screw jack, passed through the through hole of the trunnion, coaxially made with the axle of the trunnion, and connected to the drive motor, allows lifting or lowering the body of a self-unloading car. The kinematic connection of the drive shaft with the drive motor has significantly smaller dimensions than the spare tanks with pneumatic equipment of the prototype.

Each screw jack of a self-unloading railway eight-axle car can be equipped with a separate drive shaft to ensure its kinematic connection with a separate drive motor designed to ensure the operation of a separate jack.

It is allowed to make screw jacks on one drive shaft, passed through the through holes in the jack trunnions, with the possibility of connecting it to the drive motor. This implementation of the drive shaft allows you to reduce the number of used drive motors, simplifying their maintenance.

Fastening of drive motors intended for operation of a screw jack on the frame allows unloading of a railway car outside specially designated places.

A variant of the implementation of a self-unloading eight-axle railway car is possible, in which the drive motors are installed at the unloading point, with the possibility of being connected through a detachable connection to the drive shaft of the screw jack. This installation of the engine simplifies its maintenance.

The drive motor can be an electric motor, an internal combustion engine, or an air motor.

FIG. 1 shows one of the embodiments of a self-unloading eight-axle railway car, in which each screw jack is equipped with a separate drive motor.

FIG. 2 shows a fragment of the self-unloading eight-axle railway car in FIG. 1, front view.

FIG. 3 shows a side view of a screw jack.

FIG. 4 shows one of the embodiments of an eight-axle self-unloading railway car, in which all screw jacks are connected by a single drive shaft with a drive motor fixed on the lower frame of the self-unloading railway car.

FIG. 5 shows another embodiment of an eight-axle self-unloading railway car, in which all screw jacks are connected by a single drive shaft, and the drive shaft through a detachable connection is kinematically connected to a drive motor mounted on a rack, at the unloading point, outside the car.

FIG. 1, 2 show an embodiment of a self-unloading eight-axle railway car, including two pairs of four-axle bogies 1, on which a body is installed 2. The four-axle bogies consist of two-axle bogies 1.1 connected by longitudinal beams 1.2. Body 2 has an upper frame 3, with end walls 4 and folding sides 5 installed on it, resting on the lower frame 6. Body 2 is equipped with screw jacks 7 for lifting the upper frame 3. In this case, one screw jack 7 is located between the four-axle bogies 1 at the ends body 2 and one screw jack is installed at the ends of body 2, in front of four-axle bogies 1. Screw jacks 7 (Fig. 3) are installed through trunnions 8 on brackets 9, mounted on the lower frame 6. Screw 10 of jack 7 through lugs 11 is attached with a movable joint to the upper frame 3. Each screw jack 7 is equipped with a drive shaft 12, which passes through a through hole 13 in the journal 8, coaxially made with the axis of the journal and serves to create a kinematic connection with the drive motor 14. Drive motors 14 are fixed on the lower frame 6.

In one embodiment of the present invention (Fig. 4), a single drive shaft 12 passes through the holes 13 of the journal 8 of the screw jacks 7 to create a kinematic connection with the drive motor 14. The drive motor 14 is fixed to the lower frame 6.

In another embodiment of the present utility model (Fig. 5), each drive motor 14 is installed at the unloading point on racks 15, outside the self-unloading railway car in accordance with the established requirements for the dimensions of the approach of buildings and rolling stock of railways, with the possibility of connecting through a detachable connection 16 to a single drive shaft 12 located on a self-unloading eight-axle railway car.

The screw jack of a self-unloading railway car works as follows: at the command of the operator, the drive motor turns on and transfers the force to the drive shaft, the drive shaft, using kinematic links, raises or lowers the screw, which in turn raises or lowers the upper frame with the body.

The use of screw jacks in the mechanisms for lifting the body of self-unloading eight-axle railway cars allows to reduce the length of the car, improving its fit into curved track sections, and to reduce the weight of the car container.

Claims (8)

1. Self-unloading eight-axle railway car, including two pairs of four-axle bogies, on which a body is installed, which has an upper frame with end walls and drop sides installed on it, resting on the lower frame, equipped with devices for lifting the upper frame, characterized in that the devices for lifting the upper frame is made in the form of screw jacks, which are located at the ends of the body and between the bogies, while the screw jacks are installed by means of trunnions on brackets mounted on the lower frame, the screws of the jacks are pivotally connected to the upper frame, while each screw jack is equipped with a drive shaft passed through through a through hole in the trunnion and connected to the drive motor. 2. Self-unloading car according to claim 1, characterized in that each screw jack is equipped with a separate drive shaft to ensure its connection with a separate drive motor. 3. The self-unloading car according to claim 1, characterized in that the screw jacks have a single drive shaft, passed through the through holes in the jack trunnions, with the possibility of connecting it to the drive motor. 4. The self-unloading car of claim. 1, characterized in that the drive motors are fixed to the lower frame. 5. Self-unloading car according to claim 1, characterized in that the drive motors are installed at the unloading point, with the possibility of being connected through a detachable connection to the drive shaft of the screw jack. 6. Self-unloading car according to claim 1, characterized in that an electric motor is used as a drive motor. 7. Self-unloading car according to claim. 1, characterized in that an internal combustion engine is used as a drive motor. 8. The self-unloading car of claim. 1, characterized in that a pneumatic motor is used as a drive motor.

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