A four-track current collector for automatic lifting bow and its multi-modal installation mode

Abstract

The present application discloses an automatic pantograph lifting four-rail current collector and its multi-modal installation mode, including: a slide plate assembly; an active arm assembly, including a spring connecting plate and a force arm, the upper end of the active arm assembly is connected to the slide plate assembly, and the force arm controls the pantograph to lower; a balance arm assembly, the upper end of the balance arm assembly is connected to the slide plate assembly; a bracket assembly, the lower end of the balance arm assembly is connected to the bracket assembly; a pantograph lifting spring assembly, including an adjusting screw and a spring, the adjusting screw adjusts the tension of the spring to raise the pantograph; an electric push rod assembly, including an electric push rod, the electric push rod transmits the thrust to the force arm; an insulating base assembly, the bracket assembly is connected to the insulating base assembly, and the electric push rod is connected and fixed to the insulating base assembly. It also includes the following three multi-modal installation modes: a current collecting mode with positive and negative double slide plates on the same side, a current collecting mode with the positive pole of the roof pantograph and the negative pole of the fourth rail under the vehicle returning to the positive pole, and a current collecting mode with the single slide plate on the opposite sides of the positive and negative current collectors.

Description

Technical Field

[0001] The present application relates to the technical field of power supply for subway vehicles, and in particular to an automatic lifting pantograph four-rail current collector and a multi-modal installation mode thereof. Background Art

[0002] With the continuous progress of society and technology, urban rail transit in my country has become the most important means of transportation in the city. At present, the power supply method of urban rail in my country basically adopts overhead contact network or contact rail, that is, third rail, to supply power to subway vehicles, and flows back to the traction substation through the vehicle rails. Since the rails cannot be completely insulated from the roadbed, the traction return current will leak to the roadbed and other structures through the rails and generate stray current. The stray current will cause corrosion to the rails, the steel bars of the integral roadbed structure, the steel bars of the civil structure, and the metal equipment along the subway line, and directly affect the safety and service life of the subway civil structure. Although stray current corrosion protection is considered in the design and construction of the subway, there are common problems: high rail potential, the drain cabinet increases the total amount of stray current, and the insulation installation project of the integrated pipeline is difficult. Therefore, in the process of power supply of subway vehicles, how to stop the train current from being transferred from the train body through the wheels to the rails, reduce the stray current while improving the impact and input caused by the stray current, and improve the safe operation of the railway has become an urgent problem to be solved. Summary of the invention

[0003] The embodiment of the present application provides an automatic lifting bow four-rail current collector and its multi-modal installation mode, so as to at least solve the problem that stray current causes corrosion to rails, integral roadbed structure steel bars, civil structure steel bars and metal equipment along the subway line, affecting the safety and service life of the subway civil structure.

[0004] The present invention provides a multi-mode automatic lifting pantograph four-track current collector, comprising:

[0005] Skateboard components;

[0006] An active arm assembly, comprising a spring connecting plate and a force arm, wherein the upper end of the active arm assembly is connected to the slide assembly, and the force arm controls the pantograph to be lowered;

[0007] A balancing arm assembly, the upper end of which is connected to the slide assembly;

[0008] A bracket assembly, the lower end of the balance arm assembly is connected to the bracket assembly;

[0009] A pantograph raising spring assembly, comprising an adjusting screw and a spring, wherein the adjusting screw adjusts the tension of the spring to raise the pantograph;

[0010] An electric push rod assembly, comprising an electric push rod, wherein the electric push rod transmits thrust to the lever arm;

[0011] An insulating base assembly, the bracket assembly is connected to the insulating base assembly, and the electric push rod is connected and fixed to the insulating base assembly.

[0012] A multi-mode automatic lifting bow four-track current collector, wherein the slide plate assembly comprises:

[0013] A carbon slide plate seat, wherein the carbon slide plate is embedded in the carbon slide plate seat;

[0014] The slide plate connecting seat is fixedly connected with the carbon slide plate seat and the slide plate connecting seat by bolts. The carbon slide plate seat and the slide plate connecting seat are in contact with the contact network to transfer the current to the pantograph.

[0015] The multi-mode automatic lifting bow four-track current collector, wherein the active arm assembly also includes:

[0016] An active arm connecting pin shaft, wherein the active arm connecting pin shaft is fixed to the bracket assembly;

[0017] When the force arm receives the thrust, the active arm connecting pin transmits the thrust to the active arm through the force arm and the force arm connecting shaft, and the active arm rotates around the axis of the active arm connecting pin to lower the pantograph.

[0018] A multi-mode automatic lifting bow four-track current collector, wherein the balance arm assembly comprises:

[0019] A balancing arm, wherein the balancing arm is connected to a movable joint bearing via a thread;

[0020] A hinge shaft is used to connect the lower end of the balance arm to the bracket assembly.

[0021] A multi-mode automatic lifting bow four-track current collector, wherein the bracket assembly comprises:

[0022] A bracket end plate, wherein the bracket end plate is fixedly connected to the bracket by bolts, and the bracket is connected to the insulating base assembly by bolts;

[0023] Guide wire end;

[0024] Tighten the bolts.

[0025] A multi-mode automatic bow lifting four-track current collector, wherein the bow lifting spring assembly further comprises:

[0026] A thrust spherical bearing, wherein the thrust spherical bearing is embedded in the end plate of the bracket;

[0027] An end rod hinged bearing, wherein the end rod hinged bearing is connected to the spring connecting plate by bolts;

[0028] Spring buckle.

[0029] The multi-mode automatic lifting bow four-track current collector, wherein the electric push rod assembly also includes:

[0030] The middle section of the electric push rod is fixed to the insulating base assembly through a clamp and bolts, and the front section of the electric push rod transmits the thrust to the force arm through a front joint;

[0031] Front connector.

[0032] The multi-mode automatic lifting bow four-track current collector also includes a stopper assembly, and the stopper assembly includes:

[0033] A stopper, when the four-rail current collector is in a bow-raising state, the surface of the stopper contacts the surface of the active arm, and the stopper controls the active arm to stop rotating;

[0034] A fixing bolt and a stop baffle are used to adjust the distance between the stop and the stop baffle.

[0035] The multi-modal automatic lifting bow four-track current collector also includes a connector assembly, and the connector assembly is fixed to the insulating base assembly by bolts.

[0036] The present invention also provides a multi-mode installation mode of a four-track current collector for an automatic lifting pantograph, the multi-mode installation mode comprising:

[0037] The positive and negative poles are connected on the same side of the current collecting mode. After the four-rail current collector adopts the double-slide mode, it is installed at the bottom of the train. After the left carbon slide of the four-rail current collector contacts the third rail contact rail, the train current is collected from the left carbon slide of the four-rail current collector and the third rail contact rail. After flowing into the train electrical equipment, the right carbon slide of the four-rail current collector contacts the fourth rail contact rail, and the train current flows back from the four-rail current collector and the fourth rail contact rail.

[0038] The positive pole of the roof pantograph receives current and the negative pole of the fourth rail under the train returns current. After the four-rail current collector adopts the single slide mode, it is installed at the bottom of the train. The train current is received from the roof pantograph and the contact network. After flowing into the train electrical equipment, the carbon slider of the four-rail current collector contacts the fourth rail contact rail, and the train current returns from the four-rail current collector and the fourth rail contact rail.

[0039] The positive and negative current collectors have a single-slide current collecting mode on opposite sides. After the four-rail current collector adopts the double-slide mode, it is installed on both sides of the train. The train current is collected from the left carbon slide of the four-rail current collector in contact with the third rail contact rail, flows into the train electrical equipment, and then flows back from the right carbon slide of the four-rail current collector in contact with the fourth rail contact rail.

[0040] Compared with the related art, the present invention proposes an automatic bow lifting four-rail current collector and its multi-modal installation mode, the current collecting slider has single and double selectivity, and a single slide plate structure and a double slide plate structure can be adopted as needed; automatic bow lifting is realized by an electric push rod, and automatic bow lifting is realized by a damping cylinder; by adopting a new multi-modal four-rail current collector and vehicle with a dedicated negative return rail and a slide plate, the vehicle wheel rails are no longer used as negative return components, and there is no stray current affecting the roadbed and civil construction facilities, and there is no need for stray current related processing equipment in the foundation setting; the requirements for the longitudinal resistance of the track, joint welding, and rail installation are greatly reduced; the problem of metal structure corrosion due to stray current is solved, the welding damage of the running rails is effectively protected, and the safe operation of the ironmaking is improved.

[0041] Details of one or more embodiments of the present application are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0043] Figure 1 is a structural diagram of a four-rail current collector according to an embodiment of the present application;

[0044] Figure 2 is a first schematic diagram of a four-rail current collector according to an embodiment of the present application;

[0045] Figure 3 is a second schematic diagram of a four-rail current collector according to an embodiment of the present application;

[0046] Figure 4 is a structural diagram of an active arm assembly according to an embodiment of the present application;

[0047] Figure 5 is a structural diagram of a balance arm assembly according to an embodiment of the present application;

[0048] Figure 6 is a schematic structural diagram of a bracket assembly according to an embodiment of the present application;

[0049] Figure 7 is a schematic structural diagram of a bow lifting spring assembly according to an embodiment of the present application;

[0050] Figure 8 is a schematic structural diagram of an electric push rod assembly according to an embodiment of the present application;

[0051] Fig. 9 is a schematic structural diagram of an insulating base assembly according to an embodiment of the present application;

[0052] Fig.10 is a schematic diagram of the structure of a stopper assembly according to an embodiment of the present application;

[0053] Fig.11 is a schematic structural diagram of a skateboard assembly according to an embodiment of the present application;

[0054] Fig.12 2. It is a schematic diagram of the current receiving mode of the positive and negative electrode double slide plates on the same side according to an embodiment of the present application;

[0055] Fig.13 This is a first schematic diagram of a mode in which a roof pantograph positively receives current and a fourth rail on the bottom of the vehicle negatively returns current according to an embodiment of the present application;

[0056] Fig.14 The second schematic diagram is a mode of positive current collection of the roof pantograph and negative current return of the fourth rail under the vehicle according to the embodiment of the present application;

[0057] Fig.15 It is a schematic diagram of current collection by single slide plates on opposite sides of positive and negative current collectors according to an embodiment of the present application.

[0058] Wherein, the accompanying drawings are marked as follows:

[0059] Slide plate assembly: 1; active arm assembly: 2; balance arm assembly: 3; bracket assembly: 4; bow lifting spring assembly: 5; electric push rod assembly: 6; insulating base assembly: 7; stop assembly: 8; connector assembly: 9; active arm connecting pin: 10; active arm: 11; force arm connecting shaft: 12; force arm: 13; spring connecting plate: 14; hinge connecting shaft: 15; movable joint bearing: 16; balance arm: 17; bracket end plate: 18; support Frame: 19; guide wire end: 20; thrust joint bearing: 21; adjusting screw: 22; spring buckle: 23; spring: 24; end rod hinge bearing: 25; damping cylinder: 26; clamp: 27; front joint: 28; insulating base: 29; rear support seat: 30; embedded hexagonal nut: 31; fixing bolt: 32; stop baffle: 33; stop: 34; carbon slide plate: 35; carbon slide plate seat: 36; slide plate connecting seat: 37. DETAILED DESCRIPTION

[0060] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0061] Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can also be applied to other similar scenarios based on these drawings without creative work. In addition, it can also be understood that although the efforts made in this development process may be complicated and lengthy, for ordinary technicians in this field related to the disclosure of the present application, some changes in design, manufacturing or production based on the technical content disclosed in the present application are just conventional technical means, and should not be understood as the disclosure of the present application is insufficient.

[0062] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0063] Unless otherwise defined, the technical terms or scientific terms involved in this application should be understood by people with ordinary skills in the technical field to which this application belongs. The words "one", "a", "a", "the" and the like involved in this application do not indicate a quantitative limitation, and may represent the singular or plural. The terms "include", "comprise", "have" and any of their variations involved in this application are intended to cover non-exclusive inclusions; for example, a process, method, system, product or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "multiple" involved in this application refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there may be three relationships, for example, "A and / or B" can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects before and after are in an "or" relationship. The terms "first", "second", "third", etc. involved in this application are only used to distinguish similar objects and do not represent a specific ordering of the objects.

[0064] The present invention provides an automatic lifting pantograph four-rail current collector and a multi-modal installation mode thereof, wherein a special positive current collector and a negative current collector are provided to realize the current collection and return of the train current, and the current will no longer be transmitted from the train body to the rails through the wheels, and the rails will no longer transmit the current of the train operation, thereby reducing the stray current situation, thereby improving the influence and input caused by the stray current and improving the safe operation of the iron making machine.

[0065] The present invention is described below in conjunction with specific embodiments.

[0066] Embodiment 1

[0067] This embodiment also provides a multi-mode automatic lifting bow four-track current collector. Figures 1 to 11 , Figure 1 is a structural diagram of a four-rail current collector according to an embodiment of the present application; Figure 2 is a first schematic diagram of a four-rail current collector according to an embodiment of the present application; Figure 3 is a second schematic diagram of a four-rail current collector according to an embodiment of the present application; Figure 4 is a structural diagram of an active arm assembly according to an embodiment of the present application;

[0068] Figure 5 is a structural diagram of a balance arm assembly according to an embodiment of the present application; Figure 6 is a schematic structural diagram of a bracket assembly according to an embodiment of the present application; Figure 7 is a schematic structural diagram of a bow lifting spring assembly according to an embodiment of the present application; Figure 8 is a schematic structural diagram of an electric push rod assembly according to an embodiment of the present application;

[0069] Fig. 9 is a schematic structural diagram of an insulating base assembly according to an embodiment of the present application; Fig.10 is a schematic diagram of the structure of a stopper assembly according to an embodiment of the present application; Fig.11 Schematic diagram of the structure of the skateboard assembly according to an embodiment of the present application. Figures 1 to 11 As shown, a multi-mode automatic lifting pantograph four-track current collector comprises:

[0070] Slide plate assembly 1;

[0071] The active arm assembly 2 includes a spring connecting plate 14 and a force arm 13, the upper end of the active arm assembly 2 is connected to the slide assembly 1, and the force arm 13 controls the pantograph to be lowered;

[0072] A balancing arm assembly 3, the upper end of which is connected to the slide assembly 1;

[0073] A bracket assembly 4, the lower end of the balance arm assembly 3 is connected to the bracket assembly 4;

[0074] The pantograph raising spring assembly 5 comprises an adjusting screw 22 and a spring 24, wherein the adjusting screw 22 adjusts the tension of the spring 24 to raise the pantograph;

[0075] An electric push rod assembly 6, comprising an electric push rod, wherein the electric push rod transmits the thrust to the lever arm 13;

[0076] The insulating base assembly 7, the bracket assembly 4 is connected to the insulating base assembly 7, and the electric push rod is connected and fixed on the insulating base assembly 7.

[0077] In an embodiment, the skateboard assembly 1 comprises:

[0078] A carbon slide seat 36, wherein the carbon slide 35 is embedded in the carbon slide seat 36;

[0079] The slide plate connecting seat 37 is fixedly connected with the carbon slide plate seat 36 and the slide plate connecting seat 37 by bolts. The carbon slide plate seat 36 and the slide plate connecting seat 37 are in contact with the contact network to transfer the current to the pantograph.

[0080] In specific implementation, the function of the skateboard assembly 1 is mainly to contact the contact network and transfer current to the pantograph; the skateboard assembly 1 is composed of a carbon skateboard 35, a carbon skateboard seat 36, a skateboard connecting seat 37, etc.; the carbon skateboard 35 is embedded in the carbon skateboard seat 36, and the carbon skateboard seat 36 and the skateboard connecting seat 37 are in contact with the surface to transfer current, and the two are connected and fixed together by bolts; the skateboard assembly 1 is divided into two left and right parts, and one or both can be selectively installed as needed.

[0081] In an embodiment, the active arm assembly 2 further comprises:

[0082] An active arm connecting pin shaft 10, wherein the active arm connecting pin shaft 10 is fixed to the bracket assembly 4;

[0083] When the force arm 13 receives the thrust, the active arm connecting pin 10 transmits the thrust to the active arm through the force arm 13 and the force arm connecting shaft 12, and the active arm rotates around the axis of the active arm connecting pin 10 to lower the pantograph.

[0084] In the specific implementation, the function of the active arm assembly 2 is to transfer torque under the action of external force to realize the lifting and lowering of the bow; the structure of the active arm assembly 2 is divided into two parts, which are mainly composed of an active arm connecting pin 10, an active arm 11, a force arm connecting shaft 12, a force arm 13, a spring connecting plate 14, etc.; the upper end of the active arm assembly 2 is connected to the slide plate assembly 1, and the lower end is connected to the bow lifting spring assembly 5, and its rotation axis is fixed to the bracket assembly 4 with the active arm connecting pin 10; the active arm connecting pin 10 passes through the active arm 11, the force arm connecting shaft 12, and the axis of the force arm 13. When the force arm 12 is pushed by external force, the torque is transmitted to the active arm 11 through the force arm 13 and the force arm connecting shaft 12, so that the active arm rotates around the axis of the active arm connecting pin 10.

[0085] In an embodiment, the balance arm assembly 3 comprises:

[0086] A balancing arm 17, wherein the balancing arm 17 is connected to the movable joint bearing 16 via a thread;

[0087] A hinge shaft 15 is used to connect the lower end of the balance arm 17 to the bracket assembly 4 .

[0088] In the specific implementation, the main function of the balance arm assembly 3 is to cooperate with the active arm assembly 2 to form two sides of the parallelogram mechanism, so as to ensure that the slider assembly 1 is always in a parallel state; the structure of the balance arm assembly 3 is divided into two parts, which are mainly composed of a hinge shaft 15, a movable joint bearing 16 and a balance arm 17; the two ends of the balance arm 17 are respectively fixed to the two movable joint bearings 16 by threaded connections, the upper end of the balance arm 17 is fixed to the slide plate assembly 1 by bolts, and the lower end of the balance arm 17 is connected to the bracket assembly 4 by a hinge shaft 15.

[0089] In an embodiment, the support assembly 4 comprises:

[0090] A bracket end plate 18, wherein the bracket end plate 18 is fixedly connected to a bracket 19 by bolts, and the bracket 19 is connected to the insulating base assembly 7 by bolts;

[0091] Guide wire end 20;

[0092] Tighten the bolts.

[0093] In the specific implementation, the main function of the bracket assembly 4 is to provide support for the active arm assembly 2 and the balance arm assembly 3; the structure of the bracket assembly 4 is composed of a bracket end plate 18, a bracket 19, a guide wire end 20 and fastening bolts; the bracket end plate 18 is fixedly connected to the bracket 19 by bolts, and the bracket 19 is connected to the insulating base assembly 7 by bolts.

[0094] In an embodiment, the lifting spring assembly 5 further comprises:

[0095] A thrust spherical bearing 21, wherein the thrust spherical bearing 21 is embedded in the bracket end plate 18;

[0096] An end rod hinge bearing 25, wherein the end rod hinge bearing 25 is connected to the spring connecting plate 14 by bolts;

[0097] Spring buckle 23.

[0098] In specific implementation, the main function of the bow lifting spring assembly 5 is to provide lifting force for the current collector bow lifting, and at the same time provide rated contact force for the current collector when it works normally; the bow lifting spring assembly 5 structure is composed of a thrust joint bearing 21, an adjusting screw 22, a spring buckle 23, a spring 24, an end rod hinge bearing 25, etc.; the thrust joint bearing 21 is embedded in the bracket end plate 18, and the end rod hinge bearing 25 is connected to the spring connecting plate 14 by bolts. The tension of the spring 24 can be adjusted by rotating the adjusting screw 22.

[0099] In an embodiment, the electric push rod assembly 6 further includes:

[0100] The middle section of the electric push rod is connected and fixed to the insulating base assembly 7 through a clamp 27 and bolts, and the front section of the electric push rod transmits the thrust to the force arm 13 through a front joint 28;

[0101] Front connector 28.

[0102] In the specific implementation, the main function of the electric push rod assembly 6 is to provide thrust to realize the bow lowering of the four-track current collector. The interface size of the electric push rod assembly 6 and the damping cylinder assembly structure can be replaced without special modification, that is, the electric push rod can be replaced with a damping cylinder to achieve the same bow lifting effect; the structure of the electric push rod assembly 6 is mainly composed of an electric push rod 26, a clamp 27, and a front joint 28. The rear end of the electric push rod 26 is connected and fixed to the insulating base assembly 7 with the rear support seat 30, and the middle part of the electric push rod 26 is connected and fixed to the insulating base assembly 7 through the clamp 27 and bolts, and the front section of the electric push rod 26 contacts the force arm 12 through the front joint 28 to realize force transmission.

[0103] In an embodiment, the multi-modal automatic lifting bow four-track current collector further includes a stopper assembly 8, and the stopper assembly 8 includes:

[0104] A stopper 34, when the four-rail current collector is in the bow-raising state, the surface of the stopper 34 contacts the surface of the active arm, and the stopper 34 controls the active arm to stop rotating;

[0105] A fixing bolt 32 and a stop baffle plate 33 are provided, and the distance between the stop 34 and the stop baffle plate 33 is adjusted by the fixing bolt 32 .

[0106] In specific implementation, the main function of the stopper assembly 8 is to limit the maximum height of the current collector; the stopper assembly 8 structure is composed of a fixing bolt 32, a stopper baffle 33, a stopper 34, etc. When the current collector is in the bow raising state and is not in contact with the contact network, the surface of the stopper 34 contacts the surface of the active arm 11, limiting the active arm 11 from continuing to rotate, thereby realizing the maximum bow raising position limit of the four-track current collector; the relative position between the stopper 34 and the stopper baffle 33 can be realized by rotating the nut of the stopper 34, thereby realizing the adjustment of the maximum bow raising height of the current collector.

[0107] In an embodiment, the multi-modal automatic lifting bow four-rail current collector further includes a connector assembly 9, and the connector assembly 9 is fixed to the insulating base assembly 7 by bolts.

[0108] In a specific implementation, the main function of the connector assembly 9 is to lead out the power lines and signal lines involved in the electric push rod assembly 6 to achieve an external quick-plug connection; the connector assembly 9 is fixed to the insulating base 29 by bolts.

[0109] In an embodiment, the multi-modal automatic lifting bow four-rail current collector also includes an insulating base assembly 7, the bracket assembly 4 is connected to the insulating base assembly 7, and the electric push rod is connected and fixed to the insulating base assembly 7.

[0110] In specific implementation, the insulating base assembly 7 mainly functions to support the frame structure of the current collector body and the voltage and current between the insulating current collector and the vehicle body; the insulating base assembly 7 structure consists of an insulating base 29, a rear support seat 30, an embedded hexagonal nut 31, etc.

[0111] Embodiment 2

[0112] This embodiment also provides a multi-modal installation mode of a four-track current collector for an automatic lifting bow. Fig.12 2. It is a schematic diagram of the current receiving mode of the positive and negative electrode double slide plates on the same side according to an embodiment of the present application; Fig.13 This is a first schematic diagram of a mode in which a roof pantograph positively receives current and a fourth rail on the bottom of the vehicle negatively returns current according to an embodiment of the present application; Fig.14 The second schematic diagram is a mode of positive current collection of the roof pantograph and negative current return of the fourth rail under the vehicle according to the embodiment of the present application; Fig.15 This is a schematic diagram of current collection by a single slide plate on opposite sides of the positive and negative current collectors according to an embodiment of the present application. Figures 12 to 15 As shown, the multi-modal installation mode of the invention is applicable to the above-mentioned multi-modal automatic lifting pantograph four-track current collector, and the multi-modal installation mode includes:

[0113] The positive and negative poles are connected on the same side of the current collecting mode. After the four-rail current collector adopts the double-slide mode, it is installed at the bottom of the train. After the left carbon slide of the four-rail current collector contacts the third rail contact rail, the train current is collected from the left carbon slide of the four-rail current collector and the third rail contact rail. After flowing into the train electrical equipment, the right carbon slide of the four-rail current collector contacts the fourth rail contact rail, and the train current flows back from the four-rail current collector and the fourth rail contact rail.

[0114] The positive pole of the roof pantograph receives current and the negative pole of the fourth rail under the train returns current. After the four-rail current collector adopts the single slide mode, it is installed at the bottom of the train. The train current is received from the roof pantograph and the contact network. After flowing into the train electrical equipment, the carbon slider of the four-rail current collector contacts the fourth rail contact rail, and the train current returns from the four-rail current collector and the fourth rail contact rail.

[0115] The positive and negative current collectors have a single-slide current collecting mode on opposite sides. After the four-rail current collector adopts the double-slide mode, it is installed on both sides of the train. The train current is collected from the left carbon slide of the four-rail current collector in contact with the third rail contact rail, flows into the train electrical equipment, and then flows back from the right carbon slide of the four-rail current collector in contact with the fourth rail contact rail.

[0116] In a specific implementation, a multi-modal automatic bow lifting four-track current collector is provided, and its multi-modal type is mainly manifested in the bow lifting method and the multi-modal installation mode.

[0117] The bow raising and lowering method can adopt electric push rod to achieve raising and lowering bow, or it can adopt air cylinder to achieve raising and lowering bow. Among them, air cylinder can be used when the train can provide air source. When the bow needs to be lowered, a certain air pressure is introduced into the air cylinder. The cylinder piston extends under the action of air pressure and pushes the force arm of the four-rail current collector to rotate to achieve lowering bow. During the bow raising process, the spring provides lifting force to achieve raising bow. When the train cannot provide air source, electric push rod can be used to achieve raising and lowering bow. When the bow needs to be lowered, the electric push rod is energized. The head of the electric push rod extends and pushes the force arm of the four-rail current collector to rotate to achieve lowering bow. During the bow raising process, the spring provides lifting force to achieve raising bow. The structure of the four-rail current collector adopts double slide plates, that is, the slide plates are detachable. The installation mode of the four-rail current collector can adopt the current collecting mode of double slide plates on the same side with positive and negative poles, that is, the positive and negative poles can be current collected at the same time, or it can be used for single slide plate current collection; the positive pole of the roof pantograph can be used for current collection, and the negative pole of the fourth rail under the car can be used for current return; the single slide plate on the opposite side of the positive and negative current collector can be used for current collection;

[0118] The positive and negative double slide plate current collection mode is as follows: This mode is applicable to the current collection mode of the current three-track train being changed to the current collection mode of the current four-track train. The pantograph and contact network on the top of the train need to be cancelled, and the third and fourth tracks and current collectors need to be added to the bottom of the train. This requires significant changes to the existing trains and contact networks. This mode is particularly suitable for new vehicles and tracks that adopt this current collection mode, and the pantograph and contact network are no longer required on the roof.

[0119] The working principle and implementation process of the current collection mode of the positive and negative dual slide plates on the same side are as follows:

[0120] The wheels and rails on both sides of the train are called the first rail and the second rail. The third rail positive contact rail and the fourth rail negative return rail are installed between the wheels and rails of the train. The double-slide four-rail current collector is installed at the bottom of the train. The positive carbon slide on the left side of the current collector contacts the third rail contact rail to realize current collection. After the current passes through the electrical equipment in the car, it contacts the fourth rail contact rail through the carbon slide on the right side of the current collector to return. The roof of the train no longer needs a contact network and a roof pantograph. With this four-rail current collection mode, there is no need for wheel-rail to realize current return, which avoids the influence of stray current on the electrical corrosion of civil facilities, reduces the requirements for wheels, rails and civil engineering, and improves the current collection efficiency.

[0121] The pantograph on the roof receives current at the positive pole, and the fourth rail on the bottom of the vehicle returns current at the negative pole. The detailed mode is as follows: This mode is applicable to the current collection mode of the current collecting ...

[0122] The working principle and implementation process of the positive pole of the roof pantograph receiving current and the negative pole of the fourth rail under the vehicle returning current mode are as follows:

[0123] The original overhead contact wire and roof pantograph on the train roof are retained, and a fourth rail negative return rail is set up between the wheels and rails at the bottom of the train. The four-rail current collector adopts a single slide mode and is installed at the bottom of the vehicle. The carbon slider contacts the fourth rail negative return rail. The current is collected from the roof pantograph in contact with the overhead contact wire, passes through the electrical equipment in the vehicle, and then returns from the single slide four-rail current collector in contact with the fourth rail. In this four-rail current collection mode, there is no need for wheel and rail to realize return, which avoids the influence of stray current on the electrical corrosion of civil facilities, reduces the requirements for wheel and rail and civil engineering, and improves the current collection efficiency.

[0124] The details of the single-slide plate current collecting mode on the opposite sides of the positive and negative current collectors are as follows: This mode is applicable to the situation where the third rail and the fourth rail are unconditionally installed at the wheel rail at the bottom of the train. The third rail and the fourth rail are respectively installed on the train vehicle, and the current is collected and returned respectively through two single-slide plate current collectors;

[0125] The working principle and implementation process of the single-slide current collecting mode on the opposite sides of the positive and negative current collectors are as follows:

[0126] The train wheel-rail vehicle is equipped with a third rail positive contact current collecting rail and a fourth rail negative return rail. The four-rail current collectors are installed on the left and right sides of the train. The train current is collected from the left current collector carbon slide and the third rail contact rail, which is the positive pole. After the current passes through the train electrical equipment, it returns from the right current collector carbon slide and the fourth rail contact rail, which is the negative pole. The train roof no longer needs a contact network and a roof pantograph. With this four-rail current collection mode, wheel-rail return is no longer required, which avoids the electrical corrosion of stray current on civil construction facilities, reduces the requirements for wheel-rail and civil construction, and improves the current collection efficiency.

[0127] In summary, the present invention relates to an automatic lifting bow four-rail current collector and its multi-modal installation mode, and particularly relates to the field of rail vehicles and four-rail current collection. The present invention is used on urban railways, so that the train current is collected and refluxed through special positive current collectors and negative current collectors. The current will no longer be transmitted from the train body through the wheels to the rails. Since the rails no longer transmit the current of the train operation, the stray current will be significantly reduced, thereby improving the impact and input caused by the stray current and improving the safe operation of the urban railway.

[0128] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the protection scope of the attached claims.

Claims

1. A multi-mode automatic lifting pantograph four-track current collector, characterized in that: include: Skateboard components; An active arm assembly, comprising a spring connecting plate and a force arm, wherein the upper end of the active arm assembly is connected to the slide assembly, and the force arm controls the pantograph to be lowered; A balancing arm assembly, the upper end of which is connected to the slide assembly; The balance arm assembly comprises: A balancing arm, wherein the balancing arm is connected to a movable joint bearing via a thread; A bracket assembly, the lower end of the balance arm assembly is connected to the bracket assembly; A hinge shaft, through which the lower end of the balance arm is connected to the bracket assembly; A pantograph raising spring assembly, comprising an adjusting screw and a spring, wherein the adjusting screw adjusts the tension of the spring to raise the pantograph; An electric push rod assembly, comprising an electric push rod, wherein the electric push rod transmits thrust to the lever arm; An insulating base assembly, the bracket assembly is connected to the insulating base assembly, and the electric push rod is connected and fixed to the insulating base assembly; The bracket assembly further includes: two brackets, two bracket end plates, a guide wire end and a fastening bolt. The two bracket end plates are fixedly connected to the two brackets through the fastening bolts, and the two brackets are connected to the insulating base assembly through the fastening bolts. The two bracket end plates and the two brackets are located on both sides of the electric push rod assembly relative to each other.

2. The multi-mode automatic lifting pantograph four-track current collector according to claim 1 is characterized in that: The skateboard assembly comprises: A carbon slide plate seat, wherein the carbon slide plate is embedded in the carbon slide plate seat; The slide plate connecting seat is fixedly connected with the carbon slide plate seat and the slide plate connecting seat by bolts. The carbon slide plate seat and the slide plate connecting seat are in contact with the contact network to transfer the current to the pantograph.

3. The multi-mode automatic lifting pantograph four-track current collector according to claim 1 is characterized in that: The active arm assembly further comprises: An active arm connecting pin shaft, wherein the active arm connecting pin shaft is fixed to the bracket assembly; When the force arm receives the thrust, the active arm connecting pin transmits the thrust to the active arm through the force arm and the force arm connecting shaft, and the active arm rotates around the axis of the active arm connecting pin to lower the pantograph.

4. The multi-mode automatic lifting pantograph four-track current collector according to claim 1 is characterized in that: The lifting spring assembly also includes: A thrust spherical bearing, wherein the thrust spherical bearing is embedded in the end plate of the bracket; An end rod hinged bearing, wherein the end rod hinged bearing is connected to the spring connecting plate by bolts; Spring buckle.

5. The multi-mode automatic lifting pantograph four-track current collector according to claim 1 is characterized in that: The electric push rod assembly also includes: The middle section of the electric push rod is fixed to the insulating base assembly through a clamp and bolts, and the front section of the electric push rod transmits the thrust to the force arm through a front joint; Front connector.

6. The multi-mode automatic lifting bow four-track current collector according to claim 3 further comprises a stopper assembly, wherein the stopper assembly comprises: A stopper, when the four-rail current collector is in a bow-raising state, the surface of the stopper contacts the surface of the active arm, and the stopper controls the active arm to stop rotating; A fixing bolt and a stop baffle are used to adjust the distance between the stop and the stop baffle.

7. The multi-modal automatic lifting bow four-rail current collector according to claim 1 further includes a connector assembly, and the connector assembly is fixed to the insulating base assembly by bolts.

8. A multi-mode installation mode of an automatic lifting bow four-track current collector, suitable for the multi-mode automatic lifting bow four-track current collector described in any one of claims 1 to 7, characterized in that: include: The positive and negative poles are connected on the same side of the current collecting mode. After the four-rail current collector adopts the double-slide mode, it is installed at the bottom of the train. After the left carbon slide of the four-rail current collector contacts the third rail contact rail, the train current is collected from the left carbon slide of the four-rail current collector and the third rail contact rail. After flowing into the train electrical equipment, the right carbon slide of the four-rail current collector contacts the fourth rail contact rail, and the train current flows back from the four-rail current collector and the fourth rail contact rail. The positive pole of the roof pantograph receives the current and the negative pole of the fourth rail at the bottom of the train returns the current. After the four-rail current collector adopts the single slide mode, it is installed at the bottom of the train. The train current is received from the roof pantograph and the contact network. After flowing into the train electrical equipment, the carbon slider of the four-rail current collector contacts the fourth rail contact rail, and the train current returns from the four-rail current collector and the fourth rail contact rail. The positive and negative current collectors have a single-slide current collecting mode on opposite sides. After the four-rail current collector adopts the double-slide mode, it is installed on both sides of the train. The train current is collected from the left carbon slide of the four-rail current collector in contact with the third rail contact rail, flows into the train electrical equipment, and then flows back from the right carbon slide of the four-rail current collector in contact with the fourth rail contact rail.

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