SK500232019U1 - Mechanism for raising the drive-up flaps of railway carriage for transport of cars - Google Patents

Abstract

Mechanism for raising the drive-up flaps (2) of railway carriage for transport of cars comprises at least two linear drives (1) which are connected to the input shaft (3), which also has the function of linear drives (1) support. Linear drives (1) push out the contact stops (4) when rotating the input shaft (3), causing the drive-up flap (2) to rise. The contact stops (4) are attached to the linear drive (1) by means of a hinge (5), in order to enable the angle of their inclination to be changed when raising and lowering the drive-up flap (2) so, that that the contact stops (4) are always in full contact with the drive-up flap (2). By turning the input shaft (3), the contact stops (4) are pushed out or pulled back and thus the height of the drive-up flap (2) changes.

Description

Technical field

The technical solution relates to a mechanism for lifting the approach flaps of railway wagons for the transport of cars.

Prior art

A known solution is the lifting of the approach flaps of railway freight wagons transporting cars by means of a mechanism consisting of four screw hoists located under the approach flap and driven by a system of seven gearboxes.

GB995136 A published 1965-06-16 describes a railway wagon with a frame which is designed as a wagon platform. At one end of the frame there is mounted a movable platform with connecting means for connecting the wagon to another wagon, the platform being rotatably mounted at the end of the frame in such a way that the platform is movable between an upper position and a lower position under the wagon floor. Its arrangement is such that in the lower position the connecting means is parallel to a horizontal or substantially horizontal plane.

Document FR2473974 A1 published 1981-07-24 describes a wagon which has portable platforms for the manual handling of positioning projections for connecting the end of a wagon. The platforms protrude above the bumpers to connect the platform at the end of the wagon or other end truck. The platforms are located slightly higher than the floor of the wagon and close to the floor of the container. The platform is mounted in a suspension at the end of the wagon.

EP0518750 A1 published 1992-12-16 describes a wagon having an end ramp which is connected to the bumper and articulated about a transverse horizontal axis, the ramp being provided with rails for loading or unloading bogies. The ramp is raised or lowered by a motor pump with a hydraulic control system and a reversible motor that passes through a chain and gear. The hydraulic system may include cylinders that raise and lower the ramp.

DE2447576 A1 published 1976-04-08 describes a wagon having a loading platform for freight wagons. The support platform is built between two adjacent freight wagons, which stand one behind the other and which are provided on their underside with support bearings which are mounted above the buffer bearings or have bearing sleeves which extend through the compensating sleeve itself. This equipment provides a firm attachment of the loading platform between two adjacent trucks so that it is possible to drive during loading or unloading operations. The support bearings have guide plates at those ends facing the underside of the loading platform which engage the sliding guide elements attached to the platform.

US2003110975 A1 published 2003-06-19 describes a wagon having a loading platform, wherein a ramp control mechanism for a rail vehicle has a first cylinder, a second cylinder and a clutch to achieve movement to a raised position. The first double-acting roller causes the second double-acting roller to move the arm and the coupling to the lowered position when the first roller moves the ramp to the open position. The first roller causes the second roller to move the arm and the lifting device moves it to the raised position when the first roller moves the ramp to the stored position. The device is used for loading and unloading cargo, e.g. semi-trailer from the train. The mechanism reduces the impact of the ramp. It reduces the operating pressure required to raise and lower the ramp, thereby reducing the compressed air consumption per operating cycle.

All the described prior art solutions have a number of disadvantages, in particular the complex construction and use of complicated components or solutions which are not controllable and have to be placed manually in the desired location.

The essence of the technical solution

The shortcomings mentioned in the prior art are eliminated by the utility model described in this application, the essence of the technical solution being a mechanism for raising the flaps of a car wagon, comprising at least two linear drives connected to an input shaft which also serves as a support for straight lines. drives. When rotating the input shaft, the linear actuators push out the contact stops and thus the travel flap is raised. The contact stops are articulated to the linear actuators so that their inclination can be changed when raising and lowering the ramp, so that the touch stops are still in contact with the ramp over the entire surface. By turning the input shaft, the contact height is also pushed or tightened by the contact ones.

S K 50023-2019 U1

The advantage of this mechanism is the use of two linear actuators instead of four threaded hoists and seven gearboxes in the prior art method of lifting the flaps used in the art.

Overview of figures in the drawings

Fig. 1 shows rectilinear drives.

Fig. 2 and 3 show the ramp in the lower and upper position (without the vehicle body).

Examples of embodiments

The mechanism for lifting the approach flaps 2 of the carriage comprises two linear drives 1, which are connected to the input shaft 3, which also serves as a support for the linear drives 1. The linear drives 1 push the contact stops 4 when the input shaft 3 rotates. The contact stops 1 are fastened to the rectilinear actuators 1 by a joint 5, so that when raising and lowering the ramp 2, their inclination can be changed so that the touch stops 4 are still in contact with the ramp 2 over the entire surface. they attract the touch to the stop 4 and thus also the height of the approach flap 2.

Industrial applicability

The mechanism for lifting the rolling stock flaps is suitable for freight railway wagons for transporting cars, which allows loading and unloading of cars with a low ground clearance without the risk of collision of the chassis and overhangs of cars with parts of the wagon platform. The mechanism consisting of a small number of parts is also suitable for wagons which have only limited spaces for the placement of mechanisms for the control of the inertia flap.

Claims (1)

CLAIMS FOR PROTECTION Mechanism for lifting the approach flap of a wagon for transporting cars, characterized in that it comprises at least two rectilinear actuators (1) which are connected to the input shaft (3), the contact stops (1) being articulated to the rectilinear actuators (1). (5).