RU79105U1 - TRAVELING WELDING MACHINE - Google Patents

Abstract

The utility model relates to the field of railway transport and, in particular, to machines for electric contact welding of rail joints in the construction and repair of railways. Rail welding machine contains a spatial frame 1 made with upper 2 and lower 3 belts. On the upper belt 2 of the frame 1, the driver’s cabs 4, the power unit 5, welding and other equipment 6, as well as the hoods closing them are installed 7. The lower belt 3 of the frame 1 is supported by the carriage 11. Entrance and exit holes 12 are made at the ends of the frame 1, and in the space between the upper 2 and lower 3 belts of the frame 1, guides 13 and support rollers 14 for rail lashes 15 are installed. To check the correct setting of the welding equipment, the machine is equipped with a stand 16 with a press for testing welded samples for kink. For heat treatment of welded joints of rails, the machine is equipped with special induction equipment 17. Such a structural design of the rail welding machine frame allows to increase labor productivity by welding rail lashes on a braiding complex, as well as expand the possibilities of using a rail welding machine capable of welding rail lashes both on the train and on on my way. Equipping a rail welding machine with a bench with a press for testing welded samples for kink allows you to determine the correct setting of welding equipment directly at the place of work. Also, the rail welding machine allows the heat treatment of welded joints of the rails due to the installation of special induction equipment on it. 2 claims, 5 ill.

Description

The utility model relates to the field of railway transport, and in particular to machines for electric contact welding of rail joints in the construction and repair of railways.

A known machine for electric contact welding of rail joints (see, for example, a textbook for high schools of railway transport "Track machines" edited by prof. S. A. Solomonov, p. 344, Zheldorizdat, Moscow, 2000), equipped with a mechanism for moving the induction welding head, allowing it to be lowered onto rails lying in the path and raised back to the machine.

The disadvantages of the known machine can be attributed to the fact that its design does not allow it to be used in a braiding complex for welding rails on the train, and it does not have equipment for checking welding quality samples.

The aim of the development is to expand the capabilities of rail welding machines and to create such a machine for electric contact welding of rail joints, the design of which would allow it to work as part of a braiding complex, having the ability to weld rails on the train and in transit, and would also allow heat treatment of welded rail joints and Strength tests of welded samples to determine the correct setting of welding equipment.

For this, the machine for electric contact welding of rail joints during the construction and repair of railways is equipped with a spatial frame having an approximately rectangular

transverse section. The driver’s cabs, hoods, power plant, welding and other equipment are located on the upper belt of the frame, and the lower belt rests on the undercarriage. For skipping along the rail lash machine, when it is used as part of a whip-laying complex, inlet and outlet openings are made at the ends of the frame, and guide and support rollers for rail lashes are installed in the space between the upper and lower belt zones of the frame. To check the correct setting of the welding equipment, the machine is equipped with a stand for testing fractured welded samples. It is also possible such a design of the machine when it is equipped with induction equipment for heat treatment of welded joints of rails.

figure 1 - track rail welding machine, side view;

figure 2 - track rail welding machine, the location of the main equipment;

figure 3 is a view a in figure 1;

figure 4 - frame rail welding machine with mounted on it guides and support rollers for rail lashes, side view;

figure 5 - frame rail welding machine with mounted on it guides and support rollers for rail lashes, top view (with a partial section along BB in figure 4);

figure 6 - section bb in figure 5.

A machine for electric contact welding of rail joints during construction and repair of railways comprises a spatial frame 1 made with upper 2 and lower 3 belts. On the upper belt 2 of the frame 1, the driver’s cabs 4, the power unit 5, welding equipment and other equipment 6, as well as the hoods closing them 7 are installed. The welding equipment includes a welding head 8 with a manipulator 9, as well as a transformer 10. The lower belt 3 of the frame 1 is supported by bogies 11. At the ends of the frame 1, inlet and outlet openings 12 are made, and in the space between the upper 2 and lower 3 belts of the frame 1, guides 13 and support rollers 14 for rail lashes 15 are installed. To check the correct setting of the welding equipment, the main machine Equipped with stand 16 with a press for testing welded samples for fracture. For heat treatment of welded rail joints, the machine is equipped with special induction equipment 17.

Work track rail welding machine can be carried out as follows.

For welding lashes in the length of the block section and more on the lathing complex, the track rail welding machine is installed at the end of the train between the end platform from which the welded lashes will be unloaded inside the track and the platform with a welding station and a guide apparatus. Before starting work, to check the welded joints, a selective control of compliance with the welding mode is performed by testing control full-scale specimens for static transverse bending on the press and measuring the hardness of the metal in the welded joints of the rails. For testing, two samples are welded on a rail welding machine according to the regime adopted for this type of rails. If the control sample does not meet the requirements,

adjusting the parameters of the welding machine, control samples are welded, and tests are carried out until positive results are obtained.

Upon the arrival of the train to the place of work, unloading of the rail lashes into the gauge begins with it. At the beginning of the process of laying the lashes on the way, when the first pair of lashes, moving along the rollers along the train, partially passes through the frame of the rail welding machine and begins to lower from the end platform into the path, and its ends will be located on the platform with a welding station in the welding zone, the movement of the complex paused. Further, a pulling device pulls the second pair of lashes to the ends of the first pair. The welding head of the rail welding machine is alternately mounted on the prepared stripped contact surfaces of the ends of the lashes and performs welding. After heat treatment, grinding of welded joints and flaw detection control, the movement of the complex resumes.

Thus, thanks to the original design of the frame, the rail welding machine can increase labor productivity by welding rail lashes on a whip-laying complex, as well as expand the possibilities of using a rail welding machine capable of welding rail lashes both on the train and on the way. Equipping a rail welding machine with a bench with a press for testing welded samples for kink allows you to determine the correct setting of welding equipment directly at the place of work. And installation of special induction equipment on the rail welding machine allows it to heat-treat the welded joints of the rails.

Claims (3)

1. Track rail welding machine, characterized in that the frame of the machine is spatial, having an approximately rectangular cross section, and on its upper belt are located the driver’s cabs, hoods, power plant, welding and other equipment, and the lower belt is supported by running trolleys, and for Passes along the rail lash machine at the ends of the frame are made inlet and outlet openings, and in the space between the upper and lower belt zones of the frame, support rollers and guides for rail lashes are installed. 2. Track rail welding machine according to claim 1, characterized in that it is equipped with a stand for testing fractured welded samples. 3. Track rail welding machine according to claim 1 or 2, characterized in that it is equipped with induction equipment for heat treatment of welded joints of rails.