A pantograph test device for pantograph contact pressure and hard point detection

Abstract

The present application relates to a kind of for pantograph contact pressure and hard point detection pantograph test device, comprising: support assembly, weight assembly, pantograph slide plate assembly, guide roller assembly and wire rope assembly;The weight assembly and the guide roller assembly are connected between the wire rope assembly, and are hung on the support assembly;The pantograph slide plate assembly is connected with the guide pulley assembly, and is hung on the support assembly by the guide pulley assembly;The weight assembly can reach the gravitational equilibrium of both ends of the pantograph slide plate assembly on the support assembly by the wire rope assembly;When the pantograph slide plate assembly is pressed under the contact wire, the pantograph slide plate assembly can fall along with the guide roller assembly, and drive the weight assembly to rise.The pantograph test device provided by the present application can guarantee the range of pantograph contact pressure, and can effectively carry out pantograph contact pressure and hard point detection.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of electrified railway, and particularly relates to a pantograph test device for pantograph-catenary contact pressure and hard point detection. BACKGROUND

[0002] Electric locomotives obtain electric energy from the catenary through the sliding contact between the catenary conductor and the pantograph slide plate. In order to ensure the smooth flow of traction current, the catenary must exert a certain contact pressure on the pantograph, and the pantograph-catenary contact pressure can directly reflect the contact between the pantograph slide plate and the catenary conductor.

[0003] During the operation of electric locomotives, the contact force between the pantograph and the catenary conductor changes complexly. The location where the contact force between the pantograph and the catenary conductor changes suddenly is usually referred to as a contact hard point. At the contact hard point, the catenary conductor height may appear abnormal rise or fall, and even the phenomena of pantograph collision and pantograph collision may occur. It destroys the normal contact between the pantograph of the electric locomotive and the catenary conductor and the current taking, accelerates the abnormal wear and impact damage of the catenary conductor and the pantograph slide plate of the electric locomotive, and often causes sparks or arcs at these locations, thereby damaging the catenary conductor and the pantograph.

[0004] At present, the pantograph-catenary relationship is one of the bottlenecks restricting the development of high-speed electrified railways in China. Ensuring the good contact state between the pantograph and the catenary conductor is a key core problem that needs to be solved in the pantograph-catenary relationship. Therefore, the maintenance of the pantograph-catenary relationship cannot be separated from the detection of the pantograph-catenary contact pressure and hard point and the detection device thereof.

[0005] Due to the limitations of the field operation conditions, equipment installation space and other factors, it is difficult to conduct tests on site. At present, the pantograph-catenary contact pressure and hard point are mainly studied and indirectly tested by using simulation test methods. The relative movement between the catenary conductor and the pantograph slide plate is used to simulate the pantograph-catenary contact state when the locomotive is running. Before the detection device is installed on the locomotive, the comprehensive detection ability of the detection device, such as functionality and reliability, needs to be judged to verify whether the main functions, parameters and reliability meet the requirements. Therefore, it is necessary to provide a pantograph test device for pantograph-catenary contact pressure and hard point detection.

[0006] At present, the pantograph test device for pantograph-catenary contact pressure and hard point detection mainly consists of a slide plate, an upper frame, a lower arm rod (a lower frame for a double-arm pantograph), a chassis, a pantograph lifting spring, a transmission cylinder, a support insulator and other components. The structure is complex, the test cost is high, and in the prior art, the pantograph lifting device is mostly realized by using a drum mechanism, a pantograph lifting controller or a pantograph lifting and lowering mechanism. In the use process, phenomena such as rope climbing, rope disorder, lifting lag or poor lifting control precision may easily occur, which seriously affects the use effect of the lifting device, cannot guarantee the pressure range of the pantograph and the catenary conductor, and cannot realize high-precision detection of the hard point. SUMMARY

[0007] (I) Technical problems to be solved

[0008] In view of the existing technical problems, the present application provides a pantograph test device for pantograph contact pressure and hard point detection.

[0009] (II) Technical solutions

[0010] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the present application include:

[0011] A pantograph test device for pantograph contact pressure and hard point detection, comprising a support assembly, a weight assembly, a pantograph slide plate assembly, a guide roller assembly and a steel wire rope assembly;

[0012] The weight assembly and the guide roller assembly are connected through the steel wire rope assembly and are hung on the support assembly;

[0013] The pantograph slide plate assembly is connected with the guide roller assembly and is hung on the support assembly by means of the guide roller assembly;

[0014] The weight assembly can achieve gravitational balance with the pantograph slide plate assembly at both ends on the support assembly through the steel wire rope assembly;

[0015] When the pantograph slide plate assembly is pressed downward by the contact wire, the pantograph slide plate assembly can fall together with the guide roller assembly and drive the weight assembly to rise;

[0016] The pantograph slide plate assembly can achieve force balance with the contact wire by means of the weight assembly;

[0017] The support assembly is fixedly arranged on the contact wire detection device, and the contact wire detection device moves on the track system.

[0018] Preferably, the support assembly comprises a first guide support, a second guide support, a third guide support, a fourth guide support, a first transverse support, a second transverse support, a first fixed pulley and a second fixed pulley;

[0019] The first guide support, the second guide support, the third guide support and the fourth guide support are the same in structure;

[0020] The first transverse support and the second transverse support are the same in structure;

[0021] The first fixed pulley and the second fixed pulley are the same in structure;

[0022] The two ends of the first transverse support are fixedly connected with the top ends of the first guide support and the second guide support respectively to form a left side support;

[0023] The two ends of the second transverse support are fixedly connected with the top ends of the third guide support and the fourth guide support respectively to form a right side support;

[0024] The first fixed pulley is fixedly arranged at the middle part of the first transverse support between the first guide support and the second guide support;

[0025] The second fixed pulley is fixedly arranged at the middle part of the second transverse support between the third guide support and the fourth guide support.

[0026] Preferably, the weight assembly comprises a first weight unit and a second weight unit.

[0027] The first weight unit and the second weight unit are of the same structure.

[0028] Preferably, the first weight unit comprises a weight one, a weight two, a weight three and a weight lifting ring.

[0029] The weight one, the weight two and the weight three can be arranged at the lower side of the weight lifting ring to adjust the overall weight.

[0030] Preferably, the guide roller assembly comprises a first guide roller unit and a second guide roller unit.

[0031] The first guide roller unit and the second guide roller unit are of the same structure.

[0032] Preferably, the first guide roller unit comprises a guide connecting rod, a connecting lifting ring, a middle shaft connecting support and two guide roller structures.

[0033] The two ends of the guide connecting rod are connected with the two guide roller structures respectively and form an I-shaped structure with the two guide roller structures.

[0034] The connecting lifting ring is fixedly arranged on the upper side of the middle part of the guide connecting rod.

[0035] The middle shaft connecting support is fixedly arranged on the lower side of the middle part of the guide connecting rod.

[0036] The two guide roller structures are arranged in the guide grooves of the first guide support and the second guide support respectively.

[0037] Preferably, the steel wire rope assembly comprises a first steel wire rope and a second steel wire rope.

[0038] The first steel wire rope and the second steel wire rope have the same structure.

[0039] The first steel wire rope passes through the first fixed pulley and is connected to the weight lifting ring of the first weight unit and the connecting lifting ring of the first guide roller unit at both ends respectively.

[0040] The second steel wire rope passes through the second fixed pulley and is connected to the weight lifting ring of the second weight unit and the connecting lifting ring of the second guide roller unit at both ends respectively.

[0041] Preferably, the pantograph slide plate assembly comprises a first slide plate, a second slide plate, an intermediate shaft, a first rotating beam, a second rotating beam, two limiting blocks and four connecting supports.

[0042] The first slide plate and the second slide plate have the same structure.

[0043] The first rotating beam and the second rotating beam have the same structure.

[0044] The first slide plate and the second slide plate are arranged in parallel.

[0045] The first rotating beam and the second rotating beam are arranged in parallel.

[0046] The two ends of the first slide plate are connected to the leading ends of the first rotating beam and the second rotating beam respectively by means of two connecting supports and two pantograph contact pressure detection devices.

[0047] The two ends of the second slide plate are connected to the trailing ends of the first rotating beam and the second rotating beam respectively by means of two connecting supports and two pantograph contact pressure detection devices.

[0048] The first slide plate, the second slide plate, the first rotating beam and the second rotating beam form a rectangular structure.

[0049] The intermediate shaft passes through the centers of the first rotating beam and the second rotating beam in sequence.

[0050] The two limiting blocks are arranged at the connections between the first rotating beam, the second rotating beam and the intermediate shaft respectively, so as to limit the left and right movement of the rectangular structure on the intermediate shaft.

[0051] The rectangular structure can rotate freely around the intermediate shaft.

[0052] Preferably, the two ends of the intermediate shaft are connected to the first guide roller unit and the second guide roller unit respectively by means of two intermediate shaft connecting supports.

[0053] (Three) beneficial effects

[0054] The present application provides a pantograph test device for pantograph contact pressure and hard point detection, which has the following beneficial effects:

[0055] (1) The test device has simple structure, low cost and wide application range.

[0056] (2) The dynamic adjustment form of the fixed pulley suspension weight and the pantograph slide plate assembly can ensure the pantograph contact pressure range and effectively detect the pantograph contact pressure and hard point.

[0057] (3) The test device can be used for verifying and selecting the performance effect of the pantograph contact pressure detection device and the hard point detection device. BRIEF DESCRIPTION OF DRAWINGS

[0058] Figure 1 It is an application schematic diagram of the pantograph test device for pantograph contact pressure and hard point detection in the embodiment;

[0059] Figure 2 It is a general schematic diagram of the pantograph test device for pantograph contact pressure and hard point detection in the embodiment;

[0060] Figure 3 It is a support assembly structure schematic diagram in the embodiment;

[0061] Figure 4 It is a weight assembly structure schematic diagram in the embodiment;

[0062] Figure 5 It is a pantograph slide plate assembly structure schematic diagram in the embodiment;

[0063] Figure 6 It is a guide roller assembly structure schematic diagram in the embodiment.

[0064]

Explanation of reference numerals

[0065] 1: pantograph test device;

[0066] 1-1: support assembly; 1-1-1: first fixed pulley; 1-1-2: first guide support; 1-1-3: second transverse support;

[0067] 1-2: weight assembly; 1-2-1: weight one; 1-2-2: weight two; 1-2-3: weight three; 1-2-4: weight lifting ring;

[0068] 1-3: pantograph slide plate assembly; 1-3-1: slide plate; 1-3-2: intermediate shaft; 1-3-3: rotating beam; 1-3-4: limiting block; 1-3-5: connecting support;

[0069] 1-4: Guide roller assembly; 1-4-1: Guide roller structure; 1-4-2: Guide connecting rod; 1-4-3: Connecting lifting ring; 1-4-4: Intermediate shaft connecting bracket;

[0070] 1-5: Steel wire rope;

[0071] a: Track system; b: Contact wire detection device; c: Contact wire; d: Pantograph-catenary contact pressure detection device; e: Hard spot detection device. Detailed Implementation

[0072] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0073] Example 1

[0074] like Figures 1-6 As shown: This embodiment discloses a pantograph test device (1) for pantograph-catenary contact pressure and hard point detection, including: support assembly (1-1), weight assembly (1-2), pantograph sliding plate assembly (1-3), guide roller assembly (1-4) and wire rope assembly.

[0075] The weight assembly (1-2) and the guide roller assembly (1-4) are connected by the wire rope assembly and suspended on the support assembly (1-1); the pantograph sliding plate assembly (1-3) is connected to the guide pulley assembly and suspended on the support assembly (1-1) by means of the guide pulley assembly.

[0076] The weight assembly (1-2) can achieve gravitational balance at both ends with the pantograph sliding plate assembly (1-3) on the support assembly (1-1) via the wire rope assembly; when the pantograph sliding plate assembly (1-3) is pressed down by the contact line (c), the pantograph sliding plate assembly (1-3) can fall together with the guide roller assembly (1-4) and drive the weight assembly (1-2) to rise; the pantograph sliding plate assembly (1-3) can achieve force balance with the contact line with the help of the weight assembly (1-2); the support assembly (1-1) is fixedly mounted on the contact line detection device, and the contact line detection device moves on the track system (a).

[0077] The support assembly (1-1) described in this embodiment includes: a first guide bracket (1-1-2), a second guide bracket, a third guide bracket, a fourth guide bracket, a first lateral support, a second lateral support, a first fixed pulley (1-1-1), and a second fixed pulley.

[0078] The first guide bracket (1-1-2), the second guide bracket, the third guide bracket and the fourth guide bracket are identical in structure; the first transverse support and the second transverse support (1-1-3) are identical in structure; the first fixed pulley (1-1-1) and the second fixed pulley are identical in structure; the two ends of the first transverse support are fixedly connected with the top ends of the first guide bracket (1-1-2) and the second guide bracket respectively to form a left bracket.

[0079] The two ends of the second transverse support (1-1-3) are fixedly connected with the top ends of the third guide bracket and the fourth guide bracket respectively to form a right bracket; the first fixed pulley (1-1-1) is fixedly arranged at the middle part of the first transverse support between the first guide bracket (1-1-2) and the second guide bracket; the second fixed pulley is fixedly arranged at the middle part of the second transverse support (1-1-3) between the third guide bracket and the fourth guide bracket.

[0080] The weight assembly (1-2) in the embodiment comprises a first weight unit and a second weight unit; the first weight unit and the second weight unit are identical in structure.

[0081] The first weight unit in the embodiment comprises a first weight (1-2-1), a second weight (1-2-2), a third weight (1-2-3) and a weight lifting ring (1-2-4); the first weight (1-2-1), the second weight (1-2-2) and the third weight (1-2-3) can be arranged at the lower edge of the weight lifting ring (1-2-4) to adjust the overall weight.

[0082] The guide roller assembly (1-4) in the embodiment comprises a first guide roller unit and a second guide roller unit; the first guide roller unit and the second guide roller unit are identical in structure.

[0083] The first guide roller unit in the embodiment comprises a guide connecting rod (1-4-2), a connecting lifting ring (1-4-3), an intermediate shaft connecting bracket (1-4-4) and two guide roller structures (1-4-1).

[0084] The two ends of the guide connecting rod (1-4-2) are connected with the two guide roller structures (1-4-1) respectively and form an I-shaped structure with the two guide roller structures (1-4-1); the connecting lifting ring (1-4-3) is fixedly arranged on the upper side of the middle part of the guide connecting rod (1-4-2); the intermediate shaft connecting bracket (1-4-4) is fixedly arranged on the lower side of the middle part of the guide connecting rod (1-4-2); the two guide roller structures (1-4-1) are arranged in the guide grooves of the first guide bracket and the second guide bracket respectively.

[0085] The steel wire rope assembly in the embodiment comprises a first steel wire rope (1-5) and a second steel wire rope (1-5); the first steel wire rope (1-5) and the second steel wire rope (1-5) are of the same structure; the first steel wire rope (1-5) passes through the first fixed pulley and is connected with the weight lifting ring (1-2-4) of the first weight unit and the connecting lifting ring (1-4-3) of the first guide roller unit at two ends respectively; the second steel wire rope (1-5) passes through the second fixed pulley and is connected with the weight lifting ring (1-2-4) of the second weight unit and the connecting lifting ring (1-4-3) of the second guide roller unit at two ends respectively.

[0086] The pantograph slide plate assembly (1-3) in the embodiment comprises a first slide plate (1-3-1), a second slide plate (1-3-1), a middle shaft (1-3-2), a first rotating beam (1-3-3), a second rotating beam (1-3-3), two limiting blocks (1-3-4) and four connecting supports (1-3-5); the first slide plate (1-3-1) and the second slide plate (1-3-1) are of the same structure; the first rotating beam (1-3-3) and the second rotating beam (1-3-3) are of the same structure; the first slide plate (1-3-1) and the second slide plate (1-3-1) are arranged in parallel; the first rotating beam (1-3-3) and the second rotating beam (1-3-3) are arranged in parallel. The two ends of the first slide plate (1-3-1) are connected with the first rotating beam (1-3-3) and the second rotating beam (1-3-3) at the head ends respectively by means of two connecting supports (1-3-5) and two pantograph contact pressure detection devices (d); the two ends of the second slide plate (1-3-1) are connected with the first rotating beam (1-3-3) and the second rotating beam (1-3-3) at the tail ends respectively by means of two connecting supports (1-3-5) and two pantograph contact pressure detection devices (d); the first slide plate (1-3-1), the second slide plate (1-3-1), the first rotating beam (1-3-3) and the second rotating beam (1-3-3) form a rectangular structure. The middle shaft (1-3-2) passes through the centers of the first rotating beam (1-3-3) and the second rotating beam (1-3-3) in sequence; the two limiting blocks (1-3-4) are arranged at the connecting positions of the first rotating beam (1-3-3) and the second rotating beam (1-3-3) and the middle shaft (1-3-2) respectively, so as to limit the left and right movement of the rectangular structure on the middle shaft (1-3-2); the rectangular structure can rotate freely around the middle shaft (1-3-2).

[0087] The two ends of the intermediate shaft (1-3-2) in this embodiment are respectively connected with the first guide roller unit and the second guide roller unit by means of two intermediate shaft connecting brackets (1-4-4).

[0088] The pantograph test device (1) in this embodiment is used for pantograph contact pressure and hard point detection, and simulates the form of a real pantograph in structure, guarantees the pressure range of the pantograph and the contact wire (c), provides a real test environment for pantograph contact pressure and hard point detection, and can be used to verify whether the functions, parameters and reliability of the pantograph contact pressure detection device (d) and the hard point detection device (e) meet the design requirements. The pantograph test device (1) mainly comprises a support assembly (1-1), a weight assembly (1-2), a pantograph slide plate assembly (1-3), a guide roller assembly (1-4) and a steel wire rope (1-5). The support assembly (1-1) is a support and guide structure of the whole device, and is provided with a fixed pulley, a guide bracket and a transverse support. The weight assembly (1-2) is composed of a weight one, a weight two, a weight three and a weight lifting ring, and the overall weight of the weight assembly (1-2) can be adjusted by increasing or decreasing different types of weights. The pantograph slide plate assembly (1-3) simulates the structure of a real slide plate (1-3-1) and a bow head, and is composed of the slide plate (1-3-1), an intermediate shaft (1-3-2), a rotating beam (1-3-3), a limiting block (1-3-4) and a connecting bracket (1-3-5), wherein the rotating beam (1-3-3), the slide plate (1-3-1), the connecting bracket (1-3-5), the net contact pressure detection device (d) and the hard point detection device (e) can rotate freely around the intermediate shaft (1-3-2). The guide roller assembly (1-4) is composed of a guide roller structure (1-4-1), a guide connecting rod (1-4-2), a connecting lifting ring (1-4-3) and an intermediate shaft connecting bracket (1-4-4), and each guide roller structure (1-4-1) contains at least two groups of rollers. After the pantograph slide plate assembly (1-3), the guide roller assembly (1-4), the pantograph contact pressure detection device (d) and the hard point detection device (e) are assembled, the steel wire rope (1-5) is passed through the fixed pulley, and the two ends of the steel wire rope (1-5) are connected with the connecting lifting ring (1-4-3) and the weight lifting ring respectively. After the position adjustment is completed, the guide roller structure (1-4-1) can smoothly slide along the guide bracket.

[0089] The pantograph test device (1) is fixed on the contact line detection device (b) by bolt connection, the contact wire (c) presses down the slide plate (1-3-1), and the pantograph test device (1) moves with the contact line detection device (b) on the track system (a).

[0090] The pantograph test device (1) can be replaced by different types of pantograph contact pressure detection device (d) and hard point detection device (e), so as to verify whether the functions, parameters and reliability of these detection devices meet the design requirements.

[0091] The pantograph test device (1) can be replaced by different types of pantograph contact pressure detection device (d) and hard point detection device (e), so as to verify whether the functions, parameters and reliability of these detection devices meet the design requirements.

[0092] Embodiment two

[0093] The pantograph test device (1) mainly comprises a set of support assembly (1-1), two sets of weight assembly (1-2), a set of pantograph slide plate assembly (1-3), two sets of guide roller assembly (1-4) and two steel wire ropes (1-5).

[0094] The support assembly (1-1) is used as the support and guide structure of the whole device, which comprises two sets of fixed pulleys (1-1-1), four sets of guide supports (1-1-2) and two sets of transverse supports (1-1-3).

[0095] The weight assembly (1-2) comprises weight one (1-2-1), weight two (1-2-2), weight three (1-2-3) and weight hanger (1-2-4), and the overall weight of the weight assembly (1-2) can be adjusted by adding or reducing different types of weights.

[0096] The pantograph slide plate assembly (1-3) simulates the structure of the real slide plate and the bow head, which comprises two slide plates (1-3-1), one intermediate shaft (1-3-2), two rotating beams (1-3-3), two limit blocks (1-3-4) and four connecting supports (1-3-5).

[0097] The slide plate (1-3-1) is provided with mounting interfaces of the pantograph contact pressure detection device (d) and the hard point detection device (e) at both ends and the bottom.

[0098] After the installation of the pantograph contact wire pressure detection device (d), the hard point detection device (e), the slide plate (1-3-1) and the connecting bracket (1-3-5) is completed, the whole is installed on the rotating beam (1-3-3), and the limiting block (1-3-4) is installed outside the connecting bracket (1-3-5) through the rotating beam (1-3-3). The rotating beam (1-3-3) and the slide plate (1-3-1), the connecting bracket (1-3-5), the pantograph contact wire pressure detection device (d) and the hard point detection device (e) can rotate freely around the middle shaft (1-3-2).

[0099] The guide roller assembly (1-4) is composed of a group of guide roller structures (1-4-1), a guide connecting rod (1-4-2), a connecting eye (1-4-3) and a middle shaft connecting bracket (1-4-4), the middle shaft connecting bracket (1-4-4) is connected with the two ends of the middle shaft (1-3-2), and each group of guide roller structures (1-4-1) contains at least two groups of rollers.

[0100] Preferably, the guide bracket (1-1-2) is selected from angle steel structure, and the rollers in the guide roller structure (1-4-1) are selected from V-shaped wheels, in addition, the guide bracket (1-1-2) also contains other C-shaped or U-shaped steel structures, and the rollers in the guide roller structure (1-4-1) can also be selected from composite roller bearing structure accordingly.

[0101] After the pantograph slide plate assembly (1-3), the guide roller assembly (1-4), the pantograph contact wire pressure detection device (d) and the hard point detection device (e) are assembled and connected, the steel wire rope (1-5) is passed through the fixed pulley (1-1-1), and the two ends of the steel wire rope (1-5) are connected with the weight eye (1-2-4) and the connecting eye (1-4-3) respectively, after the position adjustment is completed, the guide roller structure (1-4-1) can smoothly slide along the guide bracket (1-1-2).

[0102] As shown in Figure 1 The pantograph test device (1) is fixed on the contact wire detection device (b) by bolt connection, the contact wire (c) presses the slide plate (1-3-1), and the contact wire detection device (b) moves on the track system (a).

[0103] The calculation formula of the pantograph contact wire pressure value is as follows:

[0104] F=2G3-G1-2G2-G4-G5

[0105] In the formula, F is the pantograph contact wire pressure value, G1 is the weight of the pantograph slide plate assembly (1-3), G2 is the weight of the guide roller assembly (1-4), G3 is the weight of the weight assembly (1-2), G4 is the weight of the pantograph contact wire pressure detection device (d), and G5 is the weight of the hard point detection device (e), all of which are perpendicular downward.

[0106] Since the pantograph slide plate assembly (1-3), the guide roller assembly (1-4), the pantograph-catenary contact pressure detection device (d) and the hard point detection device (e) can smoothly slide along the guide bracket (1-1-2), the pantograph-catenary contact pressure, the weight assembly (1-2), the pantograph slide plate assembly (1-3) and the guide roller assembly (1-4) can always keep a force balance state through the action of the pulley under different contact wire conditions, thus providing a real test environment for the detection of the pantograph-catenary contact pressure and the hard point.

[0107] Different types of pantograph-catenary contact pressure detection devices (d) and hard point detection devices (e) can be replaced on the pantograph test device (1), thus verifying whether the functions, parameters and reliability of the detection devices meet the design requirements.

[0108] The technical principles of the present application are described above in combination with specific embodiments, and these descriptions are only for explaining the principles of the present application and cannot be interpreted as limiting the protection scope of the present application in any way. Based on the explanations herein, other specific embodiments of the present application can be conceived by those skilled in the art without any creative effort, and these embodiments will all fall within the protection scope of the present application.

Claims

1. A pantograph testing device for pantograph contact pressure and hard point detection, characterized in that, The utility model relates to a contact line detection device, including: Support assembly, weight assembly, pantograph slide plate assembly, guide roller assembly and steel wire rope assembly; The weight assembly and the guide roller assembly are connected through the steel wire rope assembly and are hung on the support assembly; The pantograph slide plate assembly is connected with the guide roller assembly and is hung on the support assembly through the guide roller assembly; The weight assembly can reach gravity balance with the pantograph slide plate assembly at both ends on the support assembly through the steel wire rope assembly; When the pantograph slide plate assembly is pressed by the contact line, the pantograph slide plate assembly can fall together with the guide roller assembly and drive the weight assembly to rise; The pantograph slide plate assembly can reach force balance with the contact line through the weight assembly; The support assembly is fixedly arranged on the contact line detection device and moves on the track system with the contact line detection device; The support assembly includes first guide support, second guide support, third guide support, fourth guide support, first transverse support, second transverse support, first fixed pulley and second fixed pulley; The both ends of the first transverse support are fixedly connected with the top ends of the first guide support and the second guide support respectively to form a left side support; The both ends of the second transverse support are fixedly connected with the top ends of the third guide support and the fourth guide support respectively to form a right side support; The first fixed pulley is fixedly arranged at the middle part of the first transverse support between the first guide support and the second guide support; The second fixed pulley is fixedly arranged at the middle part of the second transverse support between the third guide support and the fourth guide support; The weight assembly includes first weight unit and second weight unit; The first weight unit includes weight one, weight two, weight three and weight lifting ring; The weight one, the weight two and the weight three can be arranged at the lower edge of the weight lifting ring to adjust the overall weight; The guide roller assembly includes first guide roller unit and second guide roller unit; The first guide roller unit includes guide connecting rod, connecting lifting ring, middle shaft connecting support and two guide roller structures; The both ends of the guide connecting rod are connected with the two guide roller structures respectively and form an I-shaped structure with the two guide roller structures; The connecting lifting ring is fixedly arranged on the upper side of the middle part of the guide connecting rod; The middle shaft connecting support is fixedly arranged on the lower side of the middle part of the guide connecting rod; The two guide roller structures are correspondingly arranged in the guide grooves of the first guide support and the second guide support respectively; The steel wire rope assembly includes first steel wire rope and second steel wire rope; The first steel wire rope passes through the first fixed pulley and the both ends thereof are connected with the weight lifting ring of the first weight unit and the connecting lifting ring of the first guide roller unit respectively; The second steel wire rope passes through the second fixed pulley and the both ends thereof are connected with the weight lifting ring of the second weight unit and the connecting lifting ring of the second guide roller unit respectively; The pantograph slide plate assembly comprises a first slide plate, a second slide plate, an intermediate shaft, a first rotating beam, a second rotating beam, two limiting blocks and four connecting brackets; The first slide plate and the second slide plate are arranged in parallel; The first rotating beam and the second rotating beam are arranged in parallel; Two ends of the first slide plate are connected with the first end of the first rotating beam and the second end of the second rotating beam respectively by means of two connecting brackets and two pantograph contact pressure detection devices; Two ends of the second slide plate are connected with the first end of the first rotating beam and the second end of the second rotating beam respectively by means of two connecting brackets and two pantograph contact pressure detection devices; The first slide plate, the second slide plate, the first rotating beam and the second rotating beam form a rectangular structure; The intermediate shaft passes through the center of the first rotating beam and the second rotating beam in sequence; The two limiting blocks are arranged at the connection between the first rotating beam and the second rotating beam and the intermediate shaft respectively, so as to limit the left and right movement of the rectangular structure on the intermediate shaft; The rectangular structure can rotate freely around the intermediate shaft.

2. The pantograph test device according to claim 1, wherein, The first guide bracket, the second guide bracket, the third guide bracket and the fourth guide bracket are of the same structure; The first transverse support and the second transverse support are of the same structure; The first fixed pulley and the second fixed pulley are of the same structure.

3. The pantograph test device according to claim 2, wherein, The first weight unit and the second weight unit are of the same structure.

4. The pantograph test device according to claim 3, wherein, The first guide roller unit and the second guide roller unit are of the same structure.

5. The pantograph test device according to claim 4, wherein, The first steel wire rope and the second steel wire rope are of the same structure.

6. The pantograph test device according to claim 5, wherein, The first slide plate and the second slide plate are of the same structure; The first rotating beam and the second rotating beam are of the same structure.

7. The pantograph test device according to claim 6, wherein, Two ends of the intermediate shaft are connected with the first guide roller unit and the second guide roller unit respectively by means of two intermediate shaft connecting brackets.

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