RU2240278C2 - Car-lifting device - Google Patents

Abstract

FIELD: railway transport.

SUBSTANCE: invention relates to auxiliary equipment for lifting the cars, and it can be used for repair of cars. Proposed device has two posts with guides for sliders moved by hydraulic cylinders and interconnected by beam. Posts are provided with supports for interaction of ground at both sides of track and are made extensible, being acted upon by hydraulic cylinders. Device has detachable truck installed on rails of track by wheels connected with lower part of beam. Track has fitted-on followers interacting with corresponding projections of beam for centering the device relative to railway track. Stop is arranged on beam in its middle part. Stop consists of two parts, one of which is secured stationary, and the other is made detachable.

EFFECT: increased labor efficiency, reduced labor input at lifting and lowering of car, prevention of loading of rails by car lifting forces.

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Description

The invention relates to auxiliary railway equipment for lifting wagons and can be used in the repair of wagons in railway transport associated with the replacement of the wagon of freight wagons or parts thereof, in particular wheelsets.

A device is known, consisting of two racks with guides, sliders, movable along the racks drive, and an emphasis fixed on the sliders (see patent FR No. 2070516, B 66 F 7/02, publ. 08.29.1972).

The disadvantage of this device is the need for fitting and accurate installation of the object intended for lifting, opposite the racks, which, depending on the size of the object, is not always feasible.

Also known devices for lifting cars used in the depot.

For example, the UDS-160 stationary jack installation, which includes four jacks, consisting of four separate racks with guides and sliders moving along the racks by the drive, and an emphasis fixed on the sliders, used both to lift the whole car and replace all wheel pairs, and to lifting one end of the car when replacing only two wheelsets. These jacks are installed stationary two on each side of the railway tracks. The car moves to the place of rise, the emphasis of the installation extends under the supporting platforms of the car on both sides of the car. In the case of lifting one edge of the car, two jacks are used.

The disadvantage of separate stationary jacks is the need to move the car and stop it exactly opposite the jacks, which is difficult when repairing a train. When repairing several wagons in a train, it is necessary to have jacks opposite each wagon of a train, which increases the cost of repairs.

Mobile jacks (hydraulic jacks) are also known (see N. A. Mordvinkin, V. D. Alekseev. Inspection and repair of cars in trains. - M .: Transport, 1975, - p. 111, 112) equipped with a trolley with two wheels and a handle for transportation to the place of rise.

The disadvantage of movable separate jacks is the need to perform hard coatings on both sides and inside the railway track to ensure the stability of the jacks in the working position and to facilitate their movement along the tracks, as well as through the rails, which also increases the cost of repairing cars. Manual installation of jacks on both sides of the car increases the preparation time for lifting.

A device for lifting a wagon (see US patent No. 5133531, B 66 F 7/12, publ. July 28, 1992), selected as a prototype. The car lift according to the patent consists of two racks placed on both sides of the car, one of which can be deployed in a horizontal position with a special drive. Racks through their connecting beam-support rest on the rail heads. Each rack is equipped with guides in which the sliders move. Both sliders are interconnected by a beam and move along the guides with the help of hydraulic cylinders. The beam when lifting the car with its upper surface-emphasis rests on the longitudinal side beams of the car. The lift is installed in the gap between the rails and beams of the car in its middle part - between the carriages of the car. When installed under the car, one rack is deployed in a horizontal position. Installation of the lift under the car is carried out using a forklift on the side of the car.

The installation of this device mechanically by means of a forklift on one side of the car and the support on the rail heads reduce the complexity of the operation, and also does not require the organization of a hard surface in the near-ground space, which generally reduces the cost of repairs.

However, there is a need to transform the device when installing it under the car and then bringing it into working position, as well as dismantling from under the car. There is also a need to synchronize the lift - lowering each support, since the lift goes beyond the two lateral longitudinal beams of the car, and in this case, the extension of the racks of different lengths will lead to the car being tilted and possibly toppling over. All this complicates the design of the device, increases its cost, and also increases the preparation time for lifting.

The problem to which the invention is directed is to increase productivity by reducing time and reducing the complexity of lifting - lowering the car, as well as eliminating the immersion of the rail track with the effort of raising the car.

The problem is solved in that in the device for lifting the car, mainly one of its ends, containing two racks with slide rails that are moved by hydraulic cylinders and interconnected by a beam having a stop in its upper part for interaction with the car, the racks are made retractable by means of hydraulic cylinders and have supports, with the help of which the racks interact with the soil on both sides of the railway gauge of the car. In addition, the device is equipped with a removable trolley connected to the lower part of the beam with wheels mounted on the rails of the railroad track of the car, on which copiers are made, interacting with the corresponding protrusions of the beam to ensure the centering of the device relative to the railway track. The emphasis on the beam is located in its middle part.

The emphasis on the beam can be made of two parts, one of which is fixedly mounted on the beam, and the other is removable.

Running in the upper part of the beam, in its middle, the stop allows you to lift the car in the plane of longitudinal symmetry of the car, in particular for the socket, as a power part of the car.

Raising the car at a point on the longitudinal symmetry of the car reduces the requirements for synchronizing the movement of sliders and guide racks, simplifies the design and makes it cheaper, and also allows you to adjust the shift of the car in the transverse direction by varying the length of the displacement of the sliders along the racks of the lifting device (within the permissible limits) at landing of the car on the pin of the car trolley, which facilitates the operation of lifting - lowering and reduces the likelihood of deformation or breakdown of the car parts. In this case, the stop platform rolls over the surface of the outlet, and the car is kept from lateral overturning by two platforms (side bearings) located on the carriage trolley farthest from the lifted end of the carriage.

In the prototype, such adjustment is unacceptable, since the rise goes beyond the sides of the car, and even a slight tilt of the beam will lead to the roll of the car and its possible overturning.

The proposed device provides for separate control of the hydraulic cylinders, allowing to extend the racks with supports for different lengths. This allows you to install racks with the supports of the device for lifting cars at different levels of height on both sides of the track, which reduces the requirements for the sites on which repairs are made, and therefore, reduces the cost of the operation. The placement of racks with the supports of the device for lifting cars beyond the gauge of the railway track also excludes loading the rail track with the effort of lifting the car. An exception to the loading of the rail track is dictated by the fact that the load on the rail track from the lifting force of a loaded wagon can exceed the standard load of the wheel pair on the rail head.

Installing a trolley detachable from it below the beam, the wheels of which are placed on the rails of the railway track, as well as the implementation of struts with supports mounted on the ground on both sides of the railway track, allows you to install a device for lifting the car from the side of the car end to lift it from the car socket, providing while centering the device relative to the car, which reduces the installation time of the device under the car compared to the prototype. Centering the device is provided by centering copiers mounted on the trolley, as well as flanges of the wheels of the trolley, interacting with the rails of the railway track.

The invention is illustrated by drawings, where in Fig.1 shows a General view of the device in the position before lifting the car, Fig.2 is a cross section of the device in the position before lifting the car, and Fig.3 is a side view of the device in the raised position.

The lifting device comprises racks 1 and 2, consisting of supports 3 and 4 and guides 5 and 6, as well as sliders 7 and 8, provided with the possibility of sliding along the guides 5 and 6 and connected by a beam 9, on the upper surface of which the stop 10 is fixedly fixed. The guides 5, 6 and sliders 7, 8 in cross section can be made in a rectangular shape, preventing the struts 1, 2 from turning relative to the beam 9. The stop 10 is equipped with a removable stop 11, which is fixed with finger 12. To protect the socket 13 of car 14 from deformation and avoid slipping it off rise on a wooden wedge 15 is installed an upper abutment surface 11.

The sliders 7 and 8 are moved relative to the racks 1 and 2 along the rails 5 and 6 by means of, for example, hydraulic cylinders 16 and 17, fastened by cylinders with sliders 7 or 8, and rods - with racks 1 and 2, and equipped with hydraulic locks 18. To beam 9, from below, with the help of rotary clamps 19, a removable trolley 20 is mounted, which with wheels 21 is placed on the rails 22 of the railway track.

The beam 9 is centered on the trolley 20 with copiers 23 and 24, mounted on the trolley and interacting with the protrusions 25 and 26 of the beam 9.

The hydraulic cylinders 16 and 17 are driven by applying pressure to the conclusions “a” of the hoses 27, 28, 29 and 30, respectively. To control the inclination of the beam 9 on the slider 7, a plumb line 31 is pivotally mounted and risks “b” are applied.

The operation of the device is as follows.

The device for lifting the wagon with a crane is removed from the self-propelled vehicle and installed on the railroad tracks at the end of the wagon being repaired, from the side of the wagon being repaired so that the wheels 21 of the wagon 20 are mounted on the rails 22. In this case, the pillars 3 and 4 are pressed from the bottom to beam 9. The hoses from the hydrodistributors of the hydroelectric station installed, for example, on a self-propelled vehicle, are connected to conclusions “a”.

Wagon 14 is locked on track rails with wedges “c”.

The trolley 20 moves along the rails of the railway tracks until the device for lifting the car with the emphasis 11 removed becomes the platform of the emphasis 10 under the socket 13 of the car. The emphasis 11 and gasket 15 are installed. The screws of the clamps 19 are loosened, after which the clamps are removed to the sides.

Pressure is applied from the hydraulic control valves to the hydraulic cylinders 16 and 17 and the extension of the racks 1 and 2 with the supports of the racks 3 and 4 from the sliders 7 and 8 begins. The sliders 7 and 8 connected to the fixed beam 9 slide along the guides 5 and 6. After the supports of the uprights 3 and 4 touch the ground on both sides of the railway track and with further pressure supply to the hydraulic cylinders 16 and 17, the cylinders of which are fastened with the sliders 7 and 8, and the rods with the uprights 1 and 2, the sliders 7 and 8 together with the beam 9 start to rise up relatively zhnoy carriage 20, sliding on guides 5 and 6. Then the carriage 20, rest on the rails 22, is rolled out from under the beams 9, and is discharged along the rails beyond repair bogie zone 32. As for gasket 15 and the outlet 13 begins lifting carriage 14.

Monitoring the uniformity of movement of the sliders 7 and 8 is carried out according to the position of the plumb line 31. Risks “b” limit the permissible inclination of the beam 9 from the horizon.

The movement of the sliders 7 and 8, and therefore the inclination of the beam 9 is regulated by separate hydraulic control valves.

The wagon is lifted until the pin “g” of the wagon trolley 32 exits the socket in the bottom of the wagon, after which the pressure supply to the hydraulic cylinders 16 and 17 is stopped. The wagon in this position is held by hydraulic locks 18. Additionally, manual locking of the struts is also provided, which is not shown in the drawings.

The carriage 32 is rolled out from under the car under the beam 9 along the rails 22 of the railway tracks for subsequent repair.

The repaired wagon trolley 32 rolls under the wagon and is fixed with a wedge relative to the railway tracks opposite the nest in the bottom of the wagon.

The cart 20 rolls under the beam 9 of the device for lifting the car. To lower the beam 9 with the car, pressure is removed from the hydraulic cylinders to the hydraulic system. Since the device for lifting the car provides separate control of the hydraulic cylinders 16 and 17, the movement of the sliders 7 and 8 relative to the racks can be different, due to which the adjustment of the car shift in the transverse direction is provided to facilitate the car landing on the pin of the car and reduce the likelihood of deformation or breakdown of car parts. The carriage with a nest in the bottom of the carriage lowers onto the pin “g” of the carriage 32 until it stops in the carriage.

With further lowering of the beam 9, the protrusions 25 and 26 are located on the copiers 23 and 24 of the trolley 20, centered relative to it.

After the beam 9 lowers onto the trolley 20, the supports 3 and 4 are pressed against the sliders 7 and 8 connected to the beam 9. In this case, the removable stop 11 with the gasket 15 is removed from the socket 13 of the car and removed from the stop 10 of the beam 9, after which the beam 9 screws clamp 19 is fixed to the cart 20.

A device for lifting a car on rails 22 is discharged from under the car, the hydraulic drive hoses are disconnected, and the device is mounted on a self-propelled vehicle with a crane.

The proposed device for lifting cars allows you to lift loaded cars weighing up to 100 tons

Claims (2)

1. A device for lifting a car, mainly one of its ends, containing two racks with guides for sliders, moved by hydraulic cylinders and interconnected by a beam having a stop in its upper part for interaction with the car, characterized in that the racks have supports for interaction the last with soil on both sides of the railway track of the car, the racks are made retractable by means of hydraulic cylinders, and the device is equipped with a removable trolley with wheels mounted on the rails of the railway track of the car, connected to the lower part of the beam, while the trolley is equipped with copiers mounted on it, interacting with the corresponding protrusions of the beam to center the device relative to the railway track, and the emphasis is located on the beam in its middle part. 2. The device according to claim 1, characterized in that the emphasis consists of two parts, one of which is fixedly mounted in the middle of the beam, and the second is removable.

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