RU2756480C9 - Retractable segmented platform for works on the roof of railway cars - Google Patents

Abstract

FIELD: railway transport.

SUBSTANCE: invention relates to the field of railway transport, namely to technological equipment for repair and maintenance of railway cars. The segmented retractable platform comprises a carrier frame, installed whereon using at least three guides placed in linear bearings is a retractable section, configured to move mechanically. The retractable section performs said movement by means of at least two gear racks installed thereon, located at the points of attachment of bearing units, respectively. The surface of the carrier frame facing the retractable section is equipped with at least eight transversely located fluoroplastic lining pads. The carrier frame is equipped with end switches controlling the movement process and the end position of the retractable section when the rubber damper of the contact longitudinally installed bar thereof comes into contact with the surface of the railway car.

EFFECT: reliability of operation and increase in the functional capabilities are achieved.

1 cl, 2 dwg

Description

Technical field

The invention relates to the field of railway transport, and in particular to technological equipment for the repair and maintenance of railway cars, and more specifically to equipment that allows for safe access for maintenance personnel to perform work at a mark of more than four meters on the roof of railway cars.

State of the art

Known made with the possibility of vertical movement of the working platform used for straightening and repairing car bodies (see RU 88302, class B21D 1/14, publ. 10.11.2009).

Known working platform is made in the form of a platform with a fence and is equipped with a hydraulic lift. During operation, the working platform with the operator located on it is raised to the position necessary for carrying out the corresponding work.

Known repair site, which is used for the repair of passenger high-speed rail vehicles (see EN 91699, class B60S 5/00, publ. 27.02.2010).

Known working platform is installed on the vertical racks of the frame and is equipped with a drive lift to move it.

Known repair sites have the ability to move vertically, however, they are not provided for moving in a horizontal plane, which reduces their functionality and safety of repair work, because. there is always a gap between the surface of the car and the repair site, which creates a risk of injury at work and certain difficulties in carrying out repair work at height.

Disclosure of invention

The objective and technical result of the invention is the creation of a safe and reliable segment repair platform, which has the ability to extend its section to the side directed to the railway car, while increasing the functionality and convenience during repair and / or maintenance work.

The specified task and technical result are achieved by the fact that the segment retractable platform for carrying out repair and maintenance work, mainly on the roof of railway cars, contains a supporting frame, on which, with the help of at least three guides placed in linear bearings, it is installed with the possibility of mechanical movement of the sliding section, which carries out the said movement by means of at least two toothed racks installed on it, located respectively in the places of fastening of the bearing assemblies, the surface of the supporting frame in contact with the sliding section is provided with at least eight transversely arranged fluoroplastic pads, at the same time, the carrier frame is equipped with limit switches that control the process of movement and the final position of the retractable section when the rubber damper of its contact longitudinally installed bar comes into contact with the surface of the railway car.

The present invention has the ability to move in the direction oriented to the railway car (preferably in a horizontal direction).

The retractable section of the proposed segment platform is mounted on the carrier frame by means of at least three guides placed in linear bearings, and accordingly has the ability to perform mechanical movement directed towards the railway car. The mechanical movement of the section is carried out by means of at least two toothed racks fixed on it.

Thus, the movement of the section towards the railway car (in the horizontal direction) is ensured, thereby eliminating the undesirable gap between the platform and the car, which, at a high height of more than one meter, imposes certain difficulties and risks, and they are eliminated in the proposed solution. In addition, the convenience of use is increased and the operational capabilities are enhanced when carrying out repair or maintenance work on railway cars.

In the proposed technical solution, the surface of the carrier frame facing the pull-out section is provided with at least eight transversely arranged fluoroplastic pads. Thus, the lower surface of the drawer slides over eight PTFE pads, providing the best possible smoothness and reliability of use.

In addition, in the proposed technical solution, the carrier frame is equipped with limit switches that control the process of movement and the final position of the retractable section in the event that the rubber damper comes into contact with the surface of the railway car, which ensures reliability and increases safety during operation.

Thus, it is possible to create a safe and reliable segmental repair platform that can move in a horizontal plane, while increasing the functionality and convenience when carrying out repair and/or maintenance work.

Brief description of the drawings

Figure 1 shows a General view of the segmented retractable platform; figure 2 is a cross section of a segmented retractable platform.

Implementation of the invention

The present invention is illustrated by a specific example of implementation, which, however, is not the only possible one, but clearly demonstrates the achievement by the proposed set of essential features of a given technical result and the task set for the invention.

The segment retractable platform contains an electric motor-reducer 1, a clutch 2, a drive shaft 3, a gear 4, toothed racks 5, a pressure roller 6, a bearing assembly 7, guides 8, linear bearings 9, supporting rollers 10, a contact strip 11, limit switches 12, 13 and 14, drawer 15, fluoroplastic pads 16, carrier frame 17.

Segment retractable platform for repair and maintenance work, mainly on the roof of railway cars, contains a supporting frame 17, on which, with the help of at least three guides 8, placed in linear bearings 9, a retractable section 15 is installed with the possibility of mechanical movement The sliding section 15 is made with the possibility of mechanical movement in a horizontal plane by means of at least two toothed racks 5 installed on it. the frame 17 is equipped with limit switches 12, 13 and 14, which control the process of movement and the end position of the retractable section 15 when the rubber damper of the contact bar 11 comes into contact with the surface of the railway car.

The proposed retractable platform includes a carrier frame 17, on which the retractable section 15, the retractable mechanism and electrical equipment are mounted.

The retractable section 15 is mounted on at least three guides 8 installed in linear bearings 9 and supported by supporting rollers 10, while the lower surface of the retractable section 15 slides on at least eight fluoroplastic pads 16.

The sliding section is moved by means of two gear racks 5, gears 4 and pressure roller 6.

The torque on the gears 4 is transmitted from the electric motor-reducer 1 through the clutch 2 and the drive shaft 3 installed in the bearing units 7.

Control over the end positions of the retractable section 15 is carried out using limit switches 13 and 14. The termination of the extension of the retractable section 15 during operation is ensured by the operation of three limit switches 12 when the rubber damper of the contact strip 11 comes into contact with the surface of the railway car.

The proposed segment platform can be made of various lengths by attaching the segments to each other along the length.

The present invention can find wide application in the industry in the field of railway transport, namely, it can be used for the repair and maintenance of railway cars, mainly their upper hard-to-reach parts, by fixing the proposed segmental retractable platforms at a certain pre-selected height (including more than four meters ) to vertically oriented racks, forming a special repair metal structure designed for repair and maintenance work in the railway depot.

In addition, it is preferable if the proposed segment platform is attached to the said vertical posts with the possibility of rotational movement around the attachment axis and fixing it in the assembled form, adjacent to the vertical post, and fixing it in the working position, forming an L-shaped contour in cross section.

Claims (1)

Segment retractable platform for carrying out repair, restoration and maintenance work, mainly on the roof of railway cars, containing a supporting frame, on which, with the help of at least three guides placed in linear bearings, a retractable section is installed with the possibility of mechanical movement, carrying out the said movement by means of at least two gear racks installed on it, located respectively in the places of fastening of the bearing assemblies, the surface of the carrier frame facing the pull-out section is equipped with at least eight transversely arranged fluoroplastic pads, while the carrier frame is equipped with limit switches, controlling the process of movement and the final position of the sliding section when the rubber damper of its contact longitudinally installed strip comes into contact with the surface of the railway car.

Images