RU-2804158-C1 - DEVICE FOR TESTING CURRENT COLLECTORS OF ELECTRIC ROLLING STOCK

Abstract

FIELD: vehicle. SUBSTANCE: testing of current collectors for a vehicle. Device for testing current collectors of electric rolling stock contains a base with a current collector installed on it, the skid of which is brought into contact with a piece of a contact wire fixed on a block for simulating the rigidity of a contact suspension connected to a control system and installed on a truss, one end of which is hinged to the base, and the other end is connected by means of a crank mechanism to a drive mounted on the base and connected to the control system. At the same time, the block for simulating the rigidity of the contact suspension is made in the form of two segments of the chain, between which a segment of the contact wire is fixed, while the end of the first segment of the chain is connected to the truss by means of a tension spring, and the end of the second segment of the chain is connected through a tension sensor to the tension device installed on the truss, associated with the control system. At the same time, the section of the contact wire is equipped with a pressure sensor and is made with the possibility of installing additional weights on it. The outputs of these tension and pressure sensors are connected to the input of the control system. EFFECT: expanding the functionality of the device for testing current collectors. 1 cl, 1 dwg

Inventors

• SIDOROV OLEG ALEKSEEVICH
• SMERDIN ALEKSANDR NIKOLAEVICH
• TARASENKO ALEKSANDR VLADIMIROVICH
• MIKHAJLOV MIKHAIL SERGEEVICH
• Petin Daniil Andreevich

Dates

Publication Date

20230926

Application Date

20230414

Claims (1)

1. A device for testing pantographs of electric rolling stock, containing a base with a pantograph installed on it, the skid of which is brought into contact with a piece of contact wire mounted on a block for simulating catenary rigidity, connected to the control system and installed on a truss, one end of which is hingedly attached to the base, and the other end, by means of a crank mechanism, is connected to a drive installed on the base, connected to the control system, characterized in that the said block for simulating the rigidity of the catenary suspension is made in the form of two sections of chain, between which a section of the contact wire is fixed, and the end of the first section of the chain is connected to the truss by means of a tension spring, and the end of the second section of the chain is connected through a tension sensor to a tension device installed on the truss, connected to the control system, while the section of the contact wire is equipped with a pressure sensor and is configured to install additional weights on it, and the outputs of the said sensors tension and pressure are connected to the input of the control system.

Description

The invention relates to electrified railway transport, namely to devices for dynamic testing of current collectors of electric rolling stock. Closest to the claimed one is a device for testing pantographs of electric rolling stock, containing a base with a pantograph installed on it, the skid of which is brought into contact with a piece of contact wire mounted on a catenary rigidity simulator unit connected to the control system and installed on a truss, one end which is hingedly attached to the base, and the other end, through a crank mechanism, is connected to a drive installed on the base, connected to the control system (Patent No. 122614 for a utility model (RF), IPC B60L 3/12. Device for testing current collectors of electric rolling stock / O. A. Sidorov, I. E. Chertkov, A. V. Tarasenko, M. V. Emelyanov (RF). - No. 2012123321/11; Announced 06/05/2012; Published 12/10/2012. Bulletin No. 34.) . The disadvantage of the known device for testing pantographs of electric rolling stock is the insufficient reliability of simulating the rigidity of the catenary. This is due to the fact that in the known device, rubber-cord shells are used as elastic elements that imitate the rigidity of a real catenary, whose rigidity is clearly nonlinear and does not correspond to the rigidity of a real catenary. At the same time, the significant interlayer friction force in the shells of the rubber-cord elements does not allow the free vibrations of the contact suspension to be recreated. The rigidity of a real contact suspension is largely determined by the tension of the contact wire, whereas in the known device it is fixed without tension. At the same time, the contact wire, with its short length and rigid fastening, has significant bending rigidity, which also has a negative impact on the process of simulating a real contact suspension. In addition, the known device is not equipped with means for simulating the reduced mass of the catenary, which reduces its functionality. Accordingly, the above factors do not allow us to recreate the catenary suspension on a known device with sufficient reliability, which is a key requirement for studying the dynamic characteristics of electric rolling stock pantographs. The purpose of the invention is to expand the functionality by increasing the reliability of the catenary simulation. This goal is achieved by the fact that in the known device containing a base with a pantograph installed on it, the skid of which is brought into contact with a piece of contact wire mounted on a catenary rigidity simulator unit connected to the control system and installed on a truss, one end of which is fixed hingedly on the base, and the other end is connected by means of a crank mechanism to a drive installed on the base, connected to the control system, the above-mentioned catenary rigidity simulator block is made in the form of two chain segments, between which a section of the contact wire is fixed, with the end of the first chain segment is connected to the truss by means of a tension spring, and the end of the second section of the chain is connected through a tension sensor to a tension device installed on the truss, connected to the control system, while the section of the contact wire is equipped with a pressure sensor and is configured to install additional weights on it, and the outputs of the said sensors tension and pressure are connected to the input of the control system. The drawing shows a diagram of the proposed device for testing current collectors of electric rolling stock A device for testing pantographs of electric rolling stock contains a base 1, with a pantograph 2 installed on it, a skid 3 of which is brought into contact with a piece of contact wire 4, mounted on a catenary suspension rigidity simulator block 5, connected to a control system 6 and installed on a truss 7, one the end of which is hingedly fixed to the base 1, and the other end, by means of a crank mechanism 8, is connected to a drive 9 installed on the base, connected to the control system 6. The catenary rigidity simulator block 5 is made in the form of two sections of chain 10 and 11, between which it is fixed a piece of contact wire 4, while the end of the first piece of chain 10 is connected to the truss 7 by means of a tension spring 12, and the end of the second piece of chain 11 is connected through a tension sensor 13 to a tension device 14 installed on the truss 7, connected to the control system 6, while the piece contact wire 4 is equipped with a pressure sensor 15 and is configured to install additional weights 16 on it, and the outputs of the mentioned tension sensors 13 and pressure 15 are connected to the input of the control system 6. The proposed device works as follows. The device is a testing facility for dynamic testing of current collectors of electric rolling stock. Before testing begins, a corresponding test program is written into the control system 6, which contains information about