Special test device for electrified highway pantograph
By designing a test device with a flexible support platform and a simulated contact network unit, the problem of imperfect pantograph testing in the existing technology was solved. This enabled high-fidelity simulation of the relationship between the pantograph and the contact network and multiple performance tests, improving the realism and integration of the test.
Patent Information
- Application Number
- CN202511918372.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-18
- Publication Date
- 2026-03-20
AI Technical Summary
In the existing technology, the testing and verification methods for pantographs on electrified highways are imperfect, the testing environment is distorted, the functions are limited, the integration is low, and it is impossible to effectively simulate the complex relationship between the pantograph and the overhead contact line when heavy trucks are driving on actual roads.
A test device comprising a flexible support platform and a simulated contact wire unit was designed, which can accurately simulate the complex relationship between the pantograph and the contact wire, including lateral, vertical, tilt, and dynamic adjustment. Multiple key performance tests are conducted through multi-degree-of-freedom motion and independently adjustable contact wire units.
It achieves high-fidelity simulation of pantographs on electrified highways, and can complete multiple performance tests such as static/dynamic contact pressure, pantograph raising and lowering time, and durability. It overcomes the shortcomings of existing technologies and improves the realism and integration of the tests.
Smart Images
Figure CN121703544A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to rail transit and vehicle testing technology, specifically to a dedicated testing device for pantographs of electrified highways, used to simulate actual operating conditions of electrified highways and to conduct comprehensive performance testing and evaluation of vehicle pantographs. Background Technology
[0002] Electrified highways are a new type of transportation energy system that provides dynamic electrical energy replenishment for highway freight vehicles (especially heavy trucks). In this system, vehicles obtain high-voltage electrical energy in real time by sliding contact between a pantograph mounted on the roof and an overhead contact line to power the vehicle or charge its battery. As a key interface for energy transmission, the pantograph's dynamic following performance, pantograph-catenary contact stability, mechanical durability, and electrical safety reliability directly determine the overall system's operational efficiency and safety. Currently, testing and verification methods for pantographs are not yet perfect. Testing environments are distorted, functions are limited, and integration is low.
[0003] In view of this, the present invention is hereby proposed. Summary of the Invention
[0004] The purpose of this invention is to provide a practical, fully functional, flexible, intelligent, safe and efficient testing device for pantographs on electrified highways, in order to solve the technical problems and overcome the shortcomings of existing technologies.
[0005] The objective of this invention is achieved through the following technical solution:
[0006] The electrified highway pantograph special test device of the present invention includes a flexible support platform 8 disposed on a pantograph moving platform 7. The flexible support platform 8 includes a pantograph mounting platform 12, an electric cylinder 11, and a frame 13. One side of the pantograph mounting platform 12 is hinged to one side of the frame 13, and both ends of the electric cylinder 11 are respectively hinged to the other side of the pantograph mounting platform 12 and the frame 13.
[0007] Above the pantograph mounting platform (12) are provided a simulated contact wire unit 1 and a simulated contact wire unit 2. The simulated contact wire unit 1 and the simulated contact wire unit 2 are respectively mounted on vertical moving slide 5 and vertical moving slide 6. The vertical moving slide 5 and the vertical moving slide 6 are respectively mounted on horizontal moving slide 3 and horizontal moving slide 4. The horizontal moving slide 3 and the horizontal moving slide 4 are respectively mounted on the side support.
[0008] Pressure sensors 9 are respectively provided in the middle part of the simulated contact wire unit 1 and simulated contact wire unit 2, and contact wire 10 is respectively provided at the bottom.
[0009] Compared with existing technologies, the special test device for pantographs on electrified highways provided by this invention can accurately simulate the complex pantograph-catenary relationship between the pantograph and the contact network during heavy truck operation, including lateral, vertical, tilt, and dynamic adjustments. It can also complete multiple key performance tests such as static / dynamic contact pressure, pantograph lifting height, pantograph lifting and lowering time, rapid pantograph detachment from the contact network, and durability. The simulation has a high degree of realism and solves the shortcomings of existing technologies. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of a special test device for pantographs on electrified highways provided in an embodiment of the present invention.
[0011] Figure 2 This is a schematic diagram of the structure of the simulated overhead contact line unit 1 according to an embodiment of the present invention.
[0012] Figure 3 This is a schematic diagram of the flexible support platform 8 according to an embodiment of the present invention.
[0013] In the picture:
[0014] 1. Simulated overhead contact line unit one; 2. Simulated overhead contact line unit two; 3. Lateral moving slide one; 4. Lateral moving slide two; 5. Vertical moving slide one; 6. Vertical moving slide two; 7. Pantograph moving platform; 8. Flexible support platform; 9. Pressure sensor; 10. Overhead contact line; 11. Electric cylinder; 12. Installation platform; 13. Frame. Detailed Implementation
[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them, and do not constitute a limitation on the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.
[0016] First, the following explanations are provided for the terms that may be used in this article:
[0017] The terms “including,” “contains,” “comprising,” “having,” or other similar semantic descriptions shall be interpreted as non-exclusive inclusion.
[0018] The term "composed of" excludes any technical features not expressly listed. When used in a claim, it closes the claim to exclude all technical features other than those expressly listed, except for associated conventional impurities. If the term appears only in a clause of a claim, it limits the claim to the elements expressly listed in that clause; elements recited in other clauses are not excluded from the overall claim.
[0019] The contents not described in detail in the embodiments of this invention are prior art known to those skilled in the art. Where specific conditions are not specified in the embodiments of this invention, they shall be performed according to conventional conditions in the art or conditions recommended by the manufacturer. Where the manufacturers of the reagents or instruments used in the embodiments of this invention are not specified, they are all conventional products that can be purchased commercially.
[0020] The electrified highway pantograph special test device of the present invention includes a flexible support platform 8 disposed on a pantograph moving platform 7. The flexible support platform 8 includes a pantograph mounting platform 12, an electric cylinder 11, and a frame 13. One side of the pantograph mounting platform 12 is hinged to one side of the frame 13, and both ends of the electric cylinder 11 are respectively hinged to the other side of the pantograph mounting platform 12 and the frame 13.
[0021] Above the pantograph mounting platform (12) are provided a simulated contact wire unit 1 and a simulated contact wire unit 2. The simulated contact wire unit 1 and the simulated contact wire unit 2 are respectively mounted on vertical moving slide 5 and vertical moving slide 6. The vertical moving slide 5 and the vertical moving slide 6 are respectively mounted on horizontal moving slide 3 and horizontal moving slide 4. The horizontal moving slide 3 and the horizontal moving slide 4 are respectively mounted on the side support.
[0022] Pressure sensors 9 are respectively provided in the middle part of the simulated contact wire unit 1 and simulated contact wire unit 2, and contact wire 10 is respectively provided at the bottom.
[0023] The simulated overhead contact line unit 1 and the simulated overhead contact line unit 2 can move synchronously or independently.
[0024] Both the simulated overhead contact line unit 1 and the simulated overhead contact line unit 2 are capable of lateral and vertical movement.
[0025] The flexible support platform 8 moves laterally on the guide rail of the pantograph moving platform 7;
[0026] The pressure sensor 9 collects the operating pressure curve in real time.
[0027] In summary, the dedicated test device for pantographs on electrified highways according to the embodiments of the present invention can accurately simulate the complex pantograph-catenary relationship between the pantograph and the contact wire during heavy truck operation, including lateral, vertical, tilt, and dynamic adjustments. It can also complete multiple key performance tests such as static / dynamic contact pressure, pantograph lifting height, pantograph lifting and lowering time, rapid pantograph detachment from the contact wire, and durability. The simulation has a high degree of realism and solves the shortcomings of existing technologies.
[0028] To more clearly demonstrate the technical solution and its effects provided by the present invention, the embodiments of the present invention will be described in detail below with reference to specific examples.
[0029] Example 1
[0030] like Figures 1 to 3 As shown:
[0031] A special testing device for pantographs on electrified highways is disclosed. The device employs the pantograph lifting principle, bringing simulated contact wire units 1 and 2 into contact with the pantograph head. The pantograph moving platform 7 moves laterally at a maximum acceleration of 2 m / s², simulating actual operating conditions through the movement of lateral moving slides 3 and 4, and vertical moving slides 5 and 6. An electric cylinder 11 is located in the middle of the flexible support platform 8 to simulate bumpy road conditions.
[0032] Working principle:
[0033] The pantograph of the electrified highway is installed on a flexible support platform 8. A servo-driven motor enables the lateral movement of the pantograph moving platform 7. Lateral moving slides 3 and 4, and vertical moving slides 5 and 6 move independently, creating height differences and varying speeds to simulate road bumps and pantograph tilting during actual operation. Simulated overhead contact line units 1 and 2 collect operational data via pressure sensors 9.
[0034] The beneficial effects of this invention are:
[0035] A high-fidelity simulation of the complex pantograph-catenary relationship on electrified highways was achieved across all dimensions. By designing the pantograph moving platform as a moving body with three degrees of freedom (lateral, vertical, and tilt), and designing the simulated catenary as an independent unit capable of lateral and vertical movement with elastic buffer, the coupled motion relationship between the pantograph and catenary during heavy truck operation on actual roads was reproduced for the first time on a test bench. This solved the problem that existing railway pantograph test benches could not simulate the complex working conditions of highway vehicles.
[0036] Key technical points of this invention:
[0037] 1. Two-way, multi-degree-of-freedom motion coupling simulation technology;
[0038] 2. Independent and coordinated adjustment and flexible simulation technology for dual contact wires;
[0039] 3. Modular integration and mobile deployment structure technology;
[0040] 4. Universal flexible interface and multi-degree-of-freedom drive technology for pantograph mounting platform;
[0041] 5. Integration with dual pantographs application solution.
[0042] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims. The information disclosed in the background section is intended only to enhance the understanding of the overall background technology of the present invention and should not be construed as an admission or implication in any way that such information constitutes prior art known to those skilled in the art.
Claims
1. A special testing device for pantographs on electrified highways, characterized in that, The system includes a flexible support platform (8) mounted on a pantograph moving platform (7). The flexible support platform (8) includes a pantograph mounting platform (12), an electric cylinder (11), and a frame (13). One side of the pantograph mounting platform (12) is hinged to one side of the frame (13), and both ends of the electric cylinder (11) are hinged to the other side of the pantograph mounting platform (12) and the frame (13), respectively. The pantograph mounting platform (12) is provided with a simulated contact wire unit 1 (1) and a simulated contact wire unit 2 (2) above it. The simulated contact wire unit 1 (1) and the simulated contact wire unit 2 (2) are respectively mounted on vertical moving slide 1 (5) and vertical moving slide 2 (6). The vertical moving slide 1 (5) and vertical moving slide 2 (6) are respectively mounted on horizontal moving slide 1 (3) and horizontal moving slide 2 (4). The horizontal moving slide 1 (3) and horizontal moving slide 2 (4) are respectively mounted on the side support. Pressure sensors (9) are provided in the middle part of the simulated contact wire unit 1 (1) and simulated contact wire unit 2 (2), and contact wires (10) are provided at the bottom.
2. The special testing device for pantographs on electrified highways according to claim 1, characterized in that, The simulated overhead contact line unit (1) and the simulated overhead contact line unit (2) can move synchronously or independently.
3. The special testing device for pantographs on electrified highways according to claim 2, characterized in that, Both the simulated contact wire unit one (1) and the simulated contact wire unit two (2) can perform lateral and vertical movements.
4. The special testing device for pantographs on electrified highways according to claim 1, 2, or 3, characterized in that, The flexible support platform (8) moves laterally on the guide rail of the pantograph moving platform (7).
5. The special testing device for pantographs on electrified highways according to claim 1, 2, or 3, characterized in that, The pressure sensor (9) collects the operating pressure curve in real time.