Electrified highway pantograph machine electrical coupling test bench

Abstract

The application discloses an electrified highway pantograph electromechanical coupling test bench, and relates to the pantograph-catenary technology field, which comprises a machine body arranged on a test bench base and capable of moving in a horizontal direction, a pantograph arranged in the machine body, a vibration simulation mechanism for driving the machine body to move in the horizontal direction and driving the pantograph to move in a vertical direction, and a detection mechanism arranged in the machine body and used for contacting the pantograph and detecting the contact force, contact position, contact temperature, contact current and contact voltage of the contact point when the machine body moves in the horizontal direction and / or the pantograph moves in the vertical direction. The machine body is driven to move in the horizontal direction and the pantograph is driven to move in the vertical direction by the vibration simulation mechanism, the lateral displacement and longitudinal excitation of the pantograph in actual operation are simulated, the electromechanical coupling dynamic behavior of the pantograph is truly reflected, and the accuracy of test results is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrified highway pantograph-catenary system, and particularly relates to an electrified highway pantograph-mechanical coupling test bench. BACKGROUND

[0002] The electrified highway pantograph-catenary system is a system for providing power to a moving vehicle, and its core components include a power supply network, a vehicle-mounted pantograph and an electric traction vehicle. This system realizes direct power supply to the vehicle by erecting a power supply line (catenary) on the highway and cooperating with the pantograph on the vehicle, thereby driving the vehicle to run and charging the battery of the vehicle during running. The main purpose of this system is to reduce dependence on fossil fuels, reduce carbon emissions during transportation and improve energy utilization efficiency.

[0003] The pantograph is a key subsystem of the system for power reception, and its structural strength, dynamic performance and current collection performance need to be analyzed and optimized through test bench tests. The existing pantograph test bench can only test the mechanical performance of the pantograph, cannot simulate the lateral and longitudinal vibration of the pantograph base, and cannot truly reflect the mechanical and electrical coupling dynamic behavior of the pantograph, resulting in inaccurate test results.

[0004] Therefore, how to provide a test bench capable of simulating the lateral and longitudinal vibration of the pantograph and improving the accuracy of test results is a problem that needs to be solved by those skilled in the art. SUMMARY

[0005] The purpose of the present application is to provide an electrified highway pantograph-mechanical coupling test bench to solve the problems existing in the prior art.

[0006] To achieve the above-mentioned purpose, the present application provides an electrified highway pantograph-mechanical coupling test bench, comprising: a machine body arranged on a test bench base and capable of moving in a horizontal direction, and a pantograph arranged in the machine body;

[0007] A vibration simulation mechanism is arranged for driving the machine body to move in the horizontal direction and driving the pantograph to move in a vertical direction.

[0008] A detection mechanism is arranged in the machine body for contacting the pantograph and detecting the contact force, contact position, contact temperature, contact current and contact voltage of the contact point when the machine body moves in the horizontal direction and / or the pantograph moves in the vertical direction.

[0009] Further, the machine body comprises:

[0010] A moving frame is arranged on the lateral track of the test bench base in a sliding manner in the horizontal direction, and the pantograph is arranged on the moving frame.

[0011] A support frame is fixedly arranged at the bottom end of the moving frame, and the detection mechanism is arranged at the top end of the support frame.

[0012] Further, the vibration simulation mechanism comprises:

[0013] A first hydraulic cylinder is fixedly arranged on the moving frame, and the output end of the first hydraulic cylinder extends upward;

[0014] A pantograph base is fixedly connected with the output end of the first hydraulic cylinder and is driven by the first hydraulic cylinder to move in the vertical direction, and the pantograph is arranged on the pantograph base and an insulator is arranged between the pantograph and the pantograph base.

[0015] The moving frame is driven by a linear motor to move in the horizontal direction.

[0016] Further, the pantograph base is connected with the moving frame through a positioning seat, and the positioning seat is used for limiting the pantograph base to move in the vertical direction.

[0017] Further, the detection mechanism comprises:

[0018] A second hydraulic cylinder is arranged in an installation table arranged at the top end of the support frame, the output end of the second hydraulic cylinder extends downward and can contact the pantograph when the machine body moves in the horizontal direction and / or the pantograph moves in the vertical direction, and the second hydraulic cylinder is provided with a force sensor for detecting the contact force of the contact point.

[0019] Further, the detection mechanism further comprises:

[0020] An optical camera is arranged on the installation table and / or the support frame and corresponds to the contact point, and the optical camera is used for detecting the position of the contact point.

[0021] An infrared camera is arranged on the installation table and / or the support frame and corresponds to the contact point, and the infrared camera is used for detecting the temperature of the contact point.

[0022] Further, the detection mechanism further comprises:

[0023] A contact line mounting seat is arranged on the output end of the second hydraulic cylinder, and a contact line is arranged on the contact line mounting seat.

[0024] A transformer is connected with the contact line through an electric connection line, and the transformer is used for providing direct current to the contact line, and when the machine body moves in the horizontal direction and / or the pantograph moves in the vertical direction, the contact line contacts the pantograph, and the transformer outputs a contact current and a contact voltage.

[0025] The present application discloses the following technical effects:

[0026] 1. The body is moved along the horizontal direction and the pantograph is moved along the vertical direction by the vibration simulation mechanism, the lateral displacement and longitudinal excitation of the pantograph in actual operation are simulated, the dynamic behavior of the pantograph is truly reflected, and the accuracy of the test results is improved.

[0027] 2. The contact wire is located above the pantograph and is arranged on the hydraulic cylinder, the height of the contact wire can be adjusted through the hydraulic cylinder, and then the double-wire catenary at different heights is simulated, and the application range of the test equipment is expanded.

[0028] 3. The hydraulic cylinder is used as a power source for the vertical displacement simulation of the vibration simulation mechanism, the longitudinal vibration of the vehicle body caused by the unevenness of the bad road can be simulated, and the test conditions for the test research on the dynamic behavior of the electrified highway pantograph in the mine area and the heavy load freight road area are provided. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0030] Figure 1 It is a structural schematic diagram of the present application;

[0031] Figure 2 It is a side view of the present application;

[0032] Among them, 1, support frame; 2, transverse track; 3, test bench base; 4, linear motor;

[0033] 5, moving frame; 6, pantograph base; 7, positioning seat; 8, first hydraulic cylinder; 9, insulator; 10, pantograph; 11, electric connection wire; 12, transformer; 13, second hydraulic cylinder; 14, insulating connecting rod; 15, contact wire mounting seat; 16, contact wire; 17, hydraulic pump station; 18, hydraulic pipeline; 19, control console; 20, optical camera; 21, infrared camera. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0035] In order to make the above objectives, characteristics and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0036] The embodiment of the present application provides an electrified highway pantograph machine electrical coupling test bench, which comprises: a machine body arranged on a test bench base 3 and capable of moving in a horizontal direction, a pantograph 10 arranged in the machine body; a vibration simulation mechanism for driving the machine body to move in the horizontal direction and driving the pantograph 10 to move in a vertical direction; and a detection mechanism arranged in the machine body and used for contacting the pantograph 10 and detecting the contact force, contact position, contact temperature, contact current and contact voltage of the contact point when the machine body moves in the horizontal direction and / or the pantograph 10 moves in the vertical direction.

[0037] In the embodiment, the machine body comprises: a moving frame 5 slidingly arranged on a transverse track 2 of the test bench base 3 in the horizontal direction, and the pantograph 10 is arranged on the moving frame 5; and a support frame 1, a bottom end of which is fixedly arranged on the moving frame 5, and the detection mechanism is arranged at a top end of the support frame 1.

[0038] In the embodiment, the vibration simulation mechanism comprises: four first hydraulic cylinders 8, which are long-stroke hydraulic cylinders, fixedly arranged on the moving frame 5 and extending upward at output ends; a pantograph base 6 fixedly connected with the output ends of the first hydraulic cylinders 8 and driven by the first hydraulic cylinders 8 to move in the vertical direction, and the pantograph 10 is arranged on the pantograph base 6 and an insulator 9 is arranged between the pantograph 10 and the pantograph base 6; and the insulator 9 is used for ensuring mutual insulation between the pantograph 10 and the pantograph base 6. A linear motor 4 is installed on the transverse track 2 and can drive the moving frame 5 to move in the horizontal direction through a transmission structure such as a transmission track, and the driving structure of the linear motor 4 adopts the prior art, which will not be described here. The pantograph base 6 is connected with the moving frame 5 through a positioning seat 7, and the positioning seat 7 is used for limiting the pantograph base 6 to move in the vertical direction. Specifically, the positioning seat 7 is a cuboid, and a sliding sleeve matching the shape of the positioning seat 7 is arranged below the pantograph base 6, and when the pantograph base 6 moves downward, the sliding sleeve slides along the longitudinal direction of the outer surface of the positioning seat 7, and the limiting function of the pantograph base 6 is realized through the sliding sleeve and the positioning seat 7.

[0039] In the embodiment, the detection mechanism comprises two second hydraulic cylinders 13, the top end of the support frame 1 is provided with a mounting table, the second hydraulic cylinders 13 are arranged in the mounting table, the output ends of the second hydraulic cylinders 13 extend downward and are connected and fixed with the contact wire mounting seat 15 through the insulating connecting rod 14. The contact wire mounting seat 15 is provided with the contact wire 16, the contact wire 16 can contact the pantograph 10 when the machine body moves in the horizontal direction and / or the pantograph 10 moves in the vertical direction, the second hydraulic cylinders 13 are provided with force sensors and can detect the contact force of the contact point. The contact wire 16 is connected with the transformer 12 through the electric connecting wire 11, the transformer 12 is used for providing direct current to the contact wire 16, when the machine body moves in the horizontal direction and / or the pantograph 10 moves in the vertical direction, the contact wire 16 contacts the pantograph 10, and the transformer 12 outputs the contact current and the contact voltage.

[0040] In the embodiment, the hydraulic pump station 17 and the control console 19 are further included, the first hydraulic cylinders 8 and the second hydraulic cylinders 13 are connected with the hydraulic pump station 17 through the hydraulic pipeline 18, and the control console 19 is used for controlling the first hydraulic cylinders 8, the second hydraulic cylinders 13, the linear motor 4 and the transformer 12 to work and supply power. The pantograph 10 is also controlled by the control console 19, and the control console 19 can control the pantograph 10 to rise and make the pantograph 10 contact the contact wire 16 (specifically, the double-head carbon slide plates of the pantograph 10 contact the contact wire 16) when the machine body moves in the horizontal direction and / or the pantograph 10 moves in the vertical direction.

[0041] In the embodiment, the detection mechanism further comprises an optical camera 20 arranged on the mounting table and / or the support frame 1 and corresponding to the contact point, and the optical camera 20 is used for detecting the position of the contact point; and an infrared camera 21 arranged on the mounting table and / or the support frame 1 and corresponding to the contact point, and the infrared camera 21 is used for detecting the temperature of the contact point.

[0042] Through the embodiment, the electromechanical coupling dynamic behavior of the pantograph 10 can be truly reflected, the contact force, the contact position, the contact temperature, the contact current and the contact voltage of the contact point can be collected, and then the structural strength, the dynamic performance and the current collection performance of the pantograph 10 can be accurately analyzed and evaluated.

[0043] During the test, the linear motor 4 and the first hydraulic cylinders 8 drive the pantograph 10 to produce the compound motion in the horizontal direction and the vertical direction, simulate the lateral displacement and the longitudinal excitation of the pantograph 10 in the actual operation, at this time, the head carbon slide plates at the top of the pantograph 10 contact the contact wire 16, and the force sensor in the second hydraulic cylinder 13 collects the contact force of the contact point in real time.

[0044] After the contact wire 16 contacts the pantograph 10, a contact loop is formed between the contact wire 16, the head carbon slide plates and the transformer 12 through the electric connecting wire 11, the contact current and the contact voltage are output in real time by the transformer 12, and the pantograph-catenary contact current collection is simulated.

[0045] The contact position and the contact temperature of the contact point are collected by the optical camera 20 and the infrared camera 21.

[0046] In the description of the present application, it needs to be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0047] The above-described embodiments are only to describe the preferred modes of the present application, and are not intended to limit the scope of the present application. Any modifications and improvements to the technical solutions of the present application made by those skilled in the art without departing from the design spirit of the present application shall fall within the protection scope of the present application as defined by the claims.

Claims

1. A machine electrical coupling test bench for electrified highway pantograph, characterized in that, The utility model relates to a test bench for pantograph, which comprises: a machine body arranged on a test bench base (3) and capable of moving in a horizontal direction, and a pantograph (10) arranged in the machine body; a vibration simulation mechanism for driving the machine body to move in the horizontal direction and driving the pantograph (10) to move in a vertical direction; a detection mechanism arranged in the machine body and used for contacting the pantograph (10) and detecting the contact force, contact position, contact temperature, contact current and contact voltage of the contact point when the machine body moves in the horizontal direction and / or the pantograph (10) moves in the vertical direction; the machine body comprises: a moving frame (5) slidingly arranged on a transverse rail (2) of the test bench base (3) in the horizontal direction, and the pantograph (10) is arranged on the moving frame (5); a support frame (1) with a bottom end fixedly arranged on the moving frame (5), and the detection mechanism is arranged at a top end of the support frame (1); the detection mechanism comprises: a second hydraulic cylinder (13) arranged in a mounting table at the top end of the support frame (1), an output end of the second hydraulic cylinder (13) extends downward and can contact the pantograph (10) when the machine body moves in the horizontal direction and / or the pantograph (10) moves in the vertical direction, and the second hydraulic cylinder (13) is provided with a force sensor and can detect the contact force of the contact point; an optical camera (20) arranged on the mounting table and / or the support frame (1) and corresponding to the contact point, and the optical camera (20) is used for detecting the position of the contact point; an infrared camera (21) arranged on the mounting table and / or the support frame (1) and corresponding to the contact point, and the infrared camera (21) is used for detecting the temperature of the contact point; a contact wire mounting seat (15) arranged on the output end of the second hydraulic cylinder (13), and a contact wire (16) is arranged on the contact wire mounting seat (15); a transformer (12) connected with the contact wire (16) through an electric connecting wire (11), and the transformer (12) is used for providing direct current to the contact wire (16), the contact wire (16) contacts the pantograph (10) when the machine body moves in the horizontal direction and / or the pantograph (10) moves in the vertical direction, and the transformer (12) outputs the contact current and contact voltage.

2. The electrified railway pantograph machine electrical coupling test bench according to claim 1, characterized in that, the vibration simulation mechanism comprises: a first hydraulic cylinder (8) fixedly arranged on the moving frame (5) and having an output end extending upward; a pantograph base (6) fixedly connected with the output end of the first hydraulic cylinder (8) and driven by the first hydraulic cylinder (8) to move in the vertical direction, and the pantograph (10) is arranged on the pantograph base (6) and an insulator (9) is arranged between the pantograph (10) and the pantograph base (6); the moving frame (5) is driven by a linear motor (4) to move in the horizontal direction.

3. The electrified railway pantograph machine electrical coupling test bench according to claim 2, characterized in that, the pantograph base (6) is connected with the moving frame (5) through a positioning seat (7), and the positioning seat (7) is used for limiting the pantograph base (6) to move in the vertical direction.

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