Movable highway pantograph test bench

Abstract

The invention discloses a movable highway pantograph test stand which comprises a main stand, a transverse motor, a vertical motor, a fixed guide rail, a transverse movement guide rail, a vertical movement guide rail, a limit switch, a bipolar contact line, a controller and the like. According to the movable highway pantograph test bench provided by the invention, the pantograph-catenary contact forces at different heights can be recorded by simulating the dynamic relationship between the pantograph and the catenary in the vehicle running process; the controller on the test bench can realize transverse movement and vertical movement functions, is adjustable in speed and stroke, and is used for verifying an intelligent control function and a rapid pantograph descending function of the pantograph. The movable highway pantograph test bench provides test data support for structural design and function optimization of a highway pantograph, and has the characteristics of simple structure, convenience in operation, reliable function and the like.

Description

Technical Field

[0001] The invention relates to a pantograph testing device, in particular to a movable highway pantograph testing platform. Background Art

[0002] The electrified highway system solution draws on the current collection method of rail transit locomotives. It uses a highway pantograph installed on the roof of a heavy truck to draw current from the contact network installed above the lane to drive the vehicle, achieving zero carbon emissions for long-distance highway transportation.

[0003] Electrified roads generally use direct current power supply, the contact line adopts a double-wire design with positive and negative poles, and the pantograph also adopts a "positive and negative bipolar" structure design accordingly. Taking into account the complexity of the highway operating environment, some highway pantographs have added lateral offset compensation functions during design, which can compensate for the deviation in the pantograph-net position caused by the lateral offset of the vehicle within a certain range. At the same time, when the lateral offset of the vehicle is too large and exceeds the working area of ​​the carbon slide plate, emergency pantograph lowering is implemented.

[0004] For this type of highway pantograph with lateral offset compensation function, the existing technology lacks corresponding test equipment to simulate the dynamic boundary conditions and reciprocating motion function between the pantograph and the contact network to test and verify its function and reliability.

[0005] In view of this, the present invention patent is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a movable highway pantograph test bench to solve the above-mentioned technical problems existing in the prior art.

[0007] The objective of the present invention is achieved through the following technical solutions:

[0008] The movable highway pantograph test bench of the present invention comprises: a main frame 1, a lateral motor 2, a vertical motor 3, a fixed guide rail 4, a lateral motion guide rail 5, a vertical motion guide rail 6, a limit switch 7, a bipolar contact line 8, and a controller 9;

[0009] The main frame 1 is welded from square tubes and includes a transverse bracket 10. A vertical bracket 11 is provided at the front end of the transverse bracket 10. A mounting seat 12 with adjustable transverse and longitudinal spacing is installed near the rear end of the upper part of the transverse bracket 10. A roller 13 is provided at the bottom of the main frame 1. The mounting seat 12 is used to fix the pantograph.

[0010] The fixed guide rail 4 , the transverse motion guide rail 5 , the transverse motor 2 , the vertical motor 3 , the bipolar contact wire 8 , and the controller 9 are installed on the upper part of the vertical bracket 11 .

[0011] It can be seen from the technical solution provided by the present invention that the movable highway pantograph test bench of the present invention verifies the intelligent control function and reliability of the pantograph by simulating the dynamic relationship between the pantograph and the contact network during vehicle operation, and has the characteristics of simple structure, convenient operation, and reliable function. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic structural diagram of a movable highway pantograph test bench provided in an embodiment of the present invention;

[0013] Figure 2 A schematic diagram of the pantograph main frame structure provided by an embodiment of the present invention;

[0014] Figure 3 A schematic diagram of pantograph installation provided in an embodiment of the present invention;

[0015] Figures 1 to 3 middle:

[0016] 1-main frame; 2-lateral motor; 3-vertical motor; 4-fixed guide rail; 5-lateral motion guide rail; 6-vertical motion guide rail; 7-limit switch; 8-bipolar contact line; 9-controller; 10-lateral bracket; 11-vertical bracket; 12-mounting seat; 13-roller. DETAILED DESCRIPTION

[0017] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments, which does not constitute a limitation of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the present invention.

[0018] First, the terms that may be used in this article are explained as follows:

[0019] The term “and / or” means that either or both of them can be realized at the same time. For example, X and / or Y means both “X” or “Y” and “X and Y”.

[0020] The terms "include", "comprises", "contains", "has" or other descriptions with similar semantics should be interpreted as non-exclusive inclusion. For example, including certain technical feature elements (such as raw materials, components, ingredients, carriers, dosage forms, materials, dimensions, parts, components, mechanisms, devices, steps, procedures, methods, reaction conditions, processing conditions, parameters, algorithms, signals, data, products or products, etc.) should be interpreted as including not only certain technical feature elements explicitly listed, but also other technical feature elements known in the art that are not explicitly listed.

[0021] The term "consisting of..." means excluding any technical feature elements not explicitly listed. If this term is used in a claim, it will make the claim closed, so that it does not contain technical feature elements other than the technical feature elements explicitly listed, except for the conventional impurities related to them. If this term only appears in a clause of a claim, it only limits the elements explicitly listed in the clause, and the elements recorded in other clauses are not excluded from the overall claim.

[0022] Unless otherwise specified or limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example: it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this article can be understood according to specific circumstances.

[0023] The orientation or position relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the drawings and are only for the convenience and simplification of description, and do not explicitly or implicitly indicate that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation of this document.

[0024] The contents not described in detail in the examples of the present invention belong to the prior art known to professionals in the field. If no specific conditions are specified in the examples of the present invention, the conditions are carried out according to the conventional conditions in the field or the conditions recommended by the manufacturer. If the manufacturer is not specified in the reagents or instruments used in the examples of the present invention, they are all conventional products that can be purchased commercially.

[0025] The movable highway pantograph test bench of the present invention comprises: a main frame 1, a lateral motor 2, a vertical motor 3, a fixed guide rail 4, a lateral motion guide rail 5, a vertical motion guide rail 6, a limit switch 7, a bipolar contact line 8, and a controller 9;

[0026] The main frame 1 is welded from square tubes and includes a transverse bracket 10. A vertical bracket 11 is provided at the front end of the transverse bracket 10. A mounting seat 12 with adjustable transverse and longitudinal spacing is installed near the rear end of the upper part of the transverse bracket 10. A roller 13 is provided at the bottom of the main frame 1. The mounting seat 12 is used to fix the pantograph.

[0027] The fixed guide rail 4 , the transverse motion guide rail 5 , the transverse motor 2 , the vertical motor 3 , the bipolar contact wire 8 , and the controller 9 are installed on the upper part of the vertical bracket 11 .

[0028] The transverse motor 2 is located on the upper left side of the front end of the main frame 1, and is used to control the transverse motion guide rail 5 to reciprocate left and right along the two fixed guide rails 4, and the motion stroke is not less than ±700mm.

[0029] The vertical motor 3 is located above the middle of the front end of the main frame 1, and is used to drive the vertical motion guide rail 6 to reciprocate up and down along the transverse motion guide rail 5, and the motion stroke is not less than ±500mm.

[0030] The limit switch 7 is used for: when the lateral motion guide rail 5 and the vertical motion guide rail 6 exceed the specified stroke, the limit switch 7 is triggered to act, and the controller 9 immediately issues a stop command to force the motion guide rail to stop.

[0031] The bipolar contact wire 8 is installed on both sides of the vertical motion guide rail 6 and moves synchronously with it. A force sensor is installed on the top to monitor the contact force between the pantograph and the bipolar contact wire in real time. The contact wire spacing is 1m to 1.2m. During the movement, the bipolar contact wire can achieve free movement within a vertical height difference of 0 to 50mm, simulating the actual contact wire height difference.

[0032] The controller 9 is connected to an external AC220V power supply, and can control the reciprocating motion of the lateral motion guide rail 5 and the vertical motion guide rail 6 by controlling the motion of the lateral motor 2 and the vertical motor 3, and the motion speed adjustment range is 0-0.4m / s.

[0033] In summary, it can be seen that the movable highway pantograph test bench of the embodiment of the present invention can simulate and verify the dynamic relationship between the pantograph and the contact line during vehicle operation, and provide data support for the structural design and functional improvement of the pantograph product; the lateral movement function can be used to verify the pantograph's intelligent adaptive control function and the emergency pantograph lowering function; the vertical movement function can be used to verify the functional reliability of the pantograph lifting system.

[0034] In order to more clearly demonstrate the technical solution and technical effects provided by the present invention, the embodiments of the present invention are described in detail with specific embodiments below.

[0035] Example 1

[0036] like Figures 1 to 3 An embodiment of the present invention provides a movable highway pantograph test bench, including a main frame 1, a lateral motor 2, a vertical motor 3, a fixed guide rail 4, a lateral motion guide rail 5, a vertical motion guide rail 6, a limit switch 7, a bipolar contact line 8, and a controller 9.

[0037] The main frame 1 includes a transverse support 10, a vertical support 11, a mounting seat 12 and a roller 13. The mounting seat 12 at the end of the transverse support 10 is used to fix the pantograph, and the main frame 1 can be moved to any position through the roller 13.

[0038] The vertical support 1 is equipped with a fixed guide rail 4 , a transverse motion guide rail 5 , a transverse motor 2 , a vertical motor 3 , a bipolar contact line 8 , a controller 9 and other devices, and the vertical motion guide rail 6 is fixed on the transverse motion guide rail 5 .

[0039] The transverse motor 2 is installed on the upper left side of the main frame 1 and can control the transverse motion guide rail 5 to reciprocate left and right along the two fixed guide rails 4.

[0040] The vertical motor 3 is located in the middle of the front end of the main frame 1 and can drive the vertical motion guide rail 6 to reciprocate up and down along the lateral motion guide rail 5 .

[0041] The limit switch 7 is triggered to act when the lateral motion guide rail 5 and the vertical motion guide rail 6 exceed the specified stroke, and the controller 9 immediately issues a stop command to force the movement to stop.

[0042] The bipolar contact wire 8 is installed on both sides of the vertical motion guide rail 6 and moves synchronously therewith. A force sensor is installed on the top to monitor the contact force between the pantograph and the bipolar contact wire in real time.

[0043] The controller 9 is connected to an external AC220V power supply and can control the reciprocating motion of the lateral motion guide rail 5 and the vertical motion guide rail 6 by controlling the motion of the lateral motor 2 and the vertical motor 3 .

[0044] Before the test:

[0045] (1) Install the pantograph on the test bench mounting base 12, and perform the pantograph raising operation to raise the pantograph until it contacts the bipolar contact wire;

[0046] (2) Connect AC220V power to the test bench and start the controller;

[0047] (3) The motion mode of the test bench is set through the controller, including the corresponding vertical motion speed and stroke, lateral motion speed and stroke.

[0048] During the test:

[0049] (1) The contact force is recorded by the pressure sensor on the bipolar contact line 8, and the number of lateral movements (or vertical movements) is recorded by the controller 9;

[0050] (2) During lateral movement, observe the pantograph's lateral following and the automatic lowering of the pantograph when the limit is exceeded.

[0051] After the test, the equipment is paused, the moving guide rail returns to zero position, the test bench is powered off, and the pantograph is lowered.

[0052] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims. The information disclosed in the background technology section of this article is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as an admission or in any form that the information constitutes prior art known to those skilled in the art.

Claims

1. A movable highway pantograph test bench, characterized in that: The pantograph comprises: a main frame (1), a transverse motor (2), a vertical motor (3), a fixed guide rail (4), a transverse motion guide rail (5), a vertical motion guide rail (6), a limit switch (7), a bipolar contact line (8), and a controller (9); The main frame (1) is welded from square tubes and comprises a transverse bracket (10), a vertical bracket (11) is provided at the front end of the transverse bracket (10), a mounting seat (12) with adjustable transverse and longitudinal spacing is installed at the upper part of the transverse bracket (10) near the rear end, a roller (13) is provided at the bottom of the main frame (1), and the mounting seat (12) is used to fix the pantograph; The fixed guide rail (4), the lateral motion guide rail (5), the lateral motor (2), the vertical motor (3), the bipolar contact wire (8), and the controller (9) are installed on the upper part of the vertical bracket (11).

2. The movable highway pantograph test bench according to claim 1 is characterized in that: The transverse motor (2) is located on the upper left side of the front end of the main frame (1) and is used to control the transverse motion guide rail (5) to reciprocate left and right along the two fixed guide rails (4), and the motion stroke is not less than ±700 mm. The vertical motor (3) is located above the middle of the front end of the main frame (1) and is used to drive the vertical motion guide rail (6) to reciprocate up and down along the transverse motion guide rail (5), and the motion stroke is not less than ±500mm.

3. The movable highway pantograph test bench according to claim 2 is characterized in that: The limit switch (7) is used to: when the lateral motion guide rail (5) and the vertical motion guide rail (6) exceed the specified stroke, the limit switch (7) is triggered to act, and the controller (9) immediately issues a stop command to force the motion guide rail to stop.

4. The movable highway pantograph test bench according to claim 3 is characterized in that: The bipolar contact wire (8) is installed on both sides of the vertical motion guide rail (6) and moves synchronously therewith. A force sensor is installed on the top to monitor the contact force between the pantograph and the bipolar contact wire in real time. The contact wire spacing is 1m to 1.2m. During the movement, the bipolar contact wire can achieve free movement within a vertical height difference of 0 to 50mm, simulating the actual contact wire height difference.

5. The movable highway pantograph test bench according to any one of claims 1 to 4, characterized in that: The controller (9) is connected to an external AC220V power supply and can control the reciprocating motion of the lateral motion guide rail (5) and the vertical motion guide rail (6) by controlling the motion of the lateral motor (2) and the vertical motor (3). The motion speed adjustment range is 0 to 0.4 m / s.

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