A pantograph fairing device for high-speed trains that can achieve opening and closing functions

Abstract

The present invention relates to a pantograph fairing device for a high-speed train capable of realizing opening and closing functions. The device includes a fairing, an automatic door, and a driving mechanism; the driving mechanism includes a carrying beam fixed on the vehicle body, a motor, a ball screw mechanism connected to the motor, a linear guide rail, a guide groove, and a link mechanism; the link mechanism includes a bottom bracket, a first carrying link, a second carrying link, and two carrying members; the bottom bracket is connected to the ball screw mechanism, and a slider is provided on the bottom bracket, and the slider cooperates with the linear guide rail; the first carrying link and the second carrying link are hinged to both ends of the bottom bracket, and a guide wheel is installed on the first carrying link, and the guide wheel is arranged in the guide groove; the two carrying members are respectively hinged to the first carrying link and the second carrying link, and the top ends of the carrying members are fixedly connected to the automatic door. When the pantograph is in the lowered position, the automatic door closes, closing the large opening on the fairing, reducing the aerodynamic drag and aerodynamic noise in the pantograph area on the roof.

Description

Technical Field

[0001] The invention belongs to the technical field of rail vehicles, relates to a fairing, and particularly relates to a pantograph fairing device for high-speed trains capable of realizing opening and closing functions. Background Art

[0002] In order to reduce the aerodynamic drag and aerodynamic noise in the pantograph area on the roof during the operation of high-speed trains, existing high-speed trains adopt concave basins or flat-top areas lower than the vehicle height in the area of high-voltage components on the car body, or install fairings, or a combination of both. The purpose is to reduce the height of high-voltage components protruding from the car body in the pantograph area on the roof and reduce the aerodynamic drag through the fairing.

[0003] Most of the existing fairings are formed and installed structures made of fiberglass. To meet the lifting and lowering actions of the pantograph, they are all in the form of large openings in the middle, resulting in relatively large aerodynamic drag and aerodynamic noise on one side of the lowering position due to the existence of the openings. Summary of the Invention

[0004] In view of the above technical problems, the purpose of the present invention is to provide a pantograph fairing device for high-speed trains capable of realizing opening and closing functions. An automatic door is arranged on the fairing. When the pantograph is in the lowered condition, the automatic door closes, sealing the large opening provided for the lifting and lowering of the pantograph on the fairing, reducing the aerodynamic drag and aerodynamic noise in the pantograph area on the roof.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A pantograph fairing device for high-speed trains capable of realizing opening and closing functions, the device includes a fairing, an opening is processed on the fairing. The improvement is that an automatic door is arranged at the opening position of the fairing, and a driving mechanism and a control box are arranged inside the fairing; wherein, the driving mechanism is used to control the opening and closing of the automatic door, and the control box is used to control the motor action of the driving mechanism;

[0007] The driving mechanism includes a bearing beam, a motor, a ball screw mechanism, a linear guide rail, a guide groove, and a linkage mechanism. Among them, the bearing beam is fixedly installed on the vehicle body; the motor and the ball screw mechanism are arranged on the bearing beam, and the output shaft of the motor is connected to the ball screw mechanism; the ball screw mechanism is connected to the linkage mechanism to drive the linkage mechanism to act; the linear guide rail is arranged on the bearing beam; the guide groove is fixedly installed on the side wall of the fairing; the linkage mechanism includes a bottom bracket, a first bearing link, a second bearing link, and two bearing members; the bottom bracket is connected to the ball screw mechanism, a slider is arranged on the bottom bracket, and the slider cooperates with the linear guide rail to enable the bottom bracket to slide along the linear guide rail; the first bearing link and the second bearing link are hinged to both ends of the bottom bracket, a guide wheel is installed on the first bearing link, the guide wheel is arranged in the guide groove and moves along the guide groove; the ends of the two bearing members are respectively hinged to the first bearing link and the second bearing link, and the top ends of the bearing members are fixedly connected to the automatic door.

[0008] As a preference of the present invention, a manual driving mechanism is further arranged in the fairing, and a manual operation input end is opened on the side wall of the fairing for inserting a crank; the manual driving mechanism includes a gear and a linear rack; among them, a crank socket for cooperating with the crank is arranged on the gear, the gear is driven to rotate by the crank, and the gear meshes with the linear rack; the linear rack is arranged on the linear guide rail and slides along the linear guide rail, and the end of the linear rack is fixedly connected to the slider of the bottom bracket.

[0009] As a preference of the present invention, there are two driving mechanisms, which are respectively arranged on both sides of the fairing.

[0010] As a preference of the present invention, 1-2 inspection doors are arranged on the fairing.

[0011] As a preference of the present invention, a driven guide groove is further arranged on the side wall of the fairing, and the second bearing link moves along the driven guide groove.

[0012] As a preference of the present invention, the ball screw mechanism includes a ball screw and a screw nut; among them, the ball screw is connected to the output shaft of the motor, the screw nut is arranged on the ball screw, and the bottom bracket is fixedly connected to the screw nut.

[0013] As a preference of the present invention, the fairing is made of carbon fiber material, the guide groove, the linear guide rail, the bearing beam, and the linkage mechanism are made of high-strength aluminum alloy material, and the ball screw mechanism is made of high-strength carbon steel material.

[0014] As a preference of the present invention, protective covers are arranged outside the linear guide rail and the ball screw mechanism.

[0015] Advantages and beneficial effects of the present invention:

[0016] (1) The provided fairing device of the present invention is provided with an automatic door. When the pantograph is in the lowered position, the automatic door panel can be automatically or manually controlled to close, sealing the large opening provided for raising and lowering the pantograph on the pantograph fairing, reducing the aerodynamic resistance and aerodynamic noise in the pantograph area on the roof, reducing the energy consumption during train operation, solving the problem of high noise in the area below the pantograph in the passenger compartment, and simultaneously improving the external noise environment and the operating environment of the high-voltage components on the roof.

[0017] (2) The fairing device provided by the present invention drives the ball screw to rotate through a motor. The rotation of the screw drives the movement of the screw nut, and the screw nut drives the linkage mechanism to move along the linear slide rail. Since a guide wheel is installed on the first load-bearing link of the linkage mechanism and the guide wheel moves in the guide groove, the automatic door has a combined movement of rotation and movement through the relative movement relationship between the slider on the bottom bracket and the guide wheel in the first load-bearing link, and finally the door panel is opened.

[0018] (3) The fairing device provided by the present invention is a fully enclosed fairing. The entire fairing material is made of carbon fiber material, and the driving mechanism material is selected from high-strength aluminum alloy and high-strength carbon steel materials. The overall weight does not exceed 1000 kg. When the high-speed train runs at 400 km / h, the aerodynamic resistance can be reduced by 2.2% - 3.5%, and the resistance reduction is 0.6% - 1.1% compared with the fairing device without opening and closing function. The energy consumption is reduced by 0.21 kWh / km, and the noise in the passenger compartment below the pantograph area is reduced by about 0.6 dB.

[0019] (4) The automatic door of the fairing device provided by the present invention is opened in an automatic + manual mode. The driving mode for automatic opening is driven by a motor (-40°C to 60°C, IP66). When the vehicle is without power, manual operation can be selected to open and close. All the moving mechanisms are distributed on both sides of the fairing, and will not affect the raising and lowering actions of the pantograph; in addition, a self-locking device can be provided on the moving mechanism, which can still maintain the original state in the power-off state and does not affect the train operation. Brief Description of the Drawings

[0020] Figure 1 It is an axonometric view of the closed state of the fairing device of the present invention;

[0021] Figure 2 It is an axonometric view of the open state of the fairing device of the present invention;

[0022] Figure 3 It is a side cross-sectional view of the fairing device of the present invention.

[0023] Reference numerals: fairing 1, automatic door 2, inspection door 3, drive mechanism 4, control box 5, gear 6, linear rack 7, driven guide groove 8, carrying beam 41, motor 42, ball screw mechanism 43, linear guide 44, guide groove 45, link mechanism 46, ball screw 431, manual operation input end 101, lead screw nut 432, bottom bracket 461, first load-carrying link 462, second load-carrying link 463, load-bearing member 464. Detailed implementation

[0024] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0025] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "inside", "below", etc. is: based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this application is usually placed when in use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 construed as a limitation of the present application. In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "connected" 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, a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0027] As Figures 1 to 3 shown, the present invention provides a pantograph fairing device for a high-speed train that can achieve opening and closing functions. The device includes a fairing 1, an opening is processed on the fairing 1, an automatic door 2 is arranged at the opening position of the fairing 1, and 2 inspection doors 3 are also arranged on the fairing 1;

[0028] A drive mechanism 4 and a control box 5 are arranged inside the fairing 1; wherein, the drive mechanism 4 is used to control the opening or closing of the automatic door 2, and the control box 5 is used to control the motor action of the drive mechanism 4;

[0029] The drive mechanism 4 includes a carrying beam 41, a motor 42, a ball screw mechanism 43, a linear guide 44, a guide groove 45, and a link mechanism 46; wherein, the carrying beam 41 is installed and fixed on the vehicle body;

[0030] The motor 42 and the ball screw mechanism 43 are arranged on the load-bearing beam 41;

[0031] The ball screw mechanism 43 includes a ball screw 431 and a screw nut 432; wherein, the ball screw 431 is connected to the output shaft of the motor 42, the screw nut 432 is arranged on the ball screw 431, the rotation of the motor 42 drives the rotation of the ball screw 431, and the rotation of the ball screw 431 drives the screw nut 432, so that the screw nut 432 reciprocates along the ball screw 431;

[0032] The linear guide rail 44 is arranged on the load-bearing beam 41;

[0033] The guide groove 45 is installed and fixed on the side wall of the flow guide cover 4;

[0034] The connecting rod mechanism 46 includes a bottom bracket 461, a first load-bearing connecting rod 462, a second load-bearing connecting rod 463 and two load-bearing members 464; wherein, the bottom bracket 461 is fixedly connected to the screw nut 432, a slider is arranged on the bottom bracket 461, and the slider cooperates with the linear guide rail 44 to enable the bottom bracket 461 to slide along the linear guide rail 44; the first load-bearing connecting rod 462 and the second load-bearing connecting rod 463 are hinged to both ends of the bottom bracket 461, a guide wheel is installed on the first load-bearing connecting rod 462, the guide wheel is arranged in the guide groove 45 and moves along the guide groove 45; the ends of the two load-bearing members 464 are respectively hinged to the first load-bearing connecting rod 462 and the second load-bearing connecting rod 463, and the top ends of the load-bearing members 464 are fixedly connected to the automatic door 2.

[0035] There are two driving mechanisms in the present invention, which are respectively arranged on both sides of the flow guide cover 1. In the driving mechanism 4, the motor 42 drives the rotation of the ball screw 431, and the screw nut 432 drives the bottom bracket 461 of the connecting rod mechanism 46 to move along the linear slide rail 44; when the connecting rod mechanism 46 moves, the first load-bearing connecting rod 462 moves in the guide groove 45. Through the relative motion relationship between the slider and the guide wheel in the first load-bearing connecting rod, the automatic door 2 has a combined motion of both rotation and translation, and finally the automatic door 2 is opened.

[0036] Further, a driven guide groove 8 is also arranged on the side wall of the flow guide cover. When the first load-bearing connecting rod 462 moves in the guide groove 45, the second load-bearing connecting rod 463 moves in the driven guide groove 8.

[0037] Further, a manual driving mechanism is also arranged in the flow guide cover. A manual operation input end 101 is opened on the side wall of the flow guide cover 1. The manual operation input end 101 is used to insert a crank. In the case of power failure, the manual driving mechanism can be driven by the crank tool hand to open and close the automatic door 2;

[0038] The manual driving mechanism includes a gear 6 and a linear rack 7. Among them, a crank handle jack for cooperating with a crank handle is provided on the gear 6, and the gear 6 is driven to rotate by the crank handle. The gear 6 meshes with the linear rack 7. The linear rack 7 is arranged on a linear guide rail 44 and slides along the linear guide rail 44. The end of the linear rack 7 is fixedly connected to the slider of the bottom bracket 461.

[0039] Furthermore, the fairing is made of carbon fiber material, the guide groove, linear guide rail, bearing beam, and linkage mechanism are made of high-strength aluminum alloy material, and the ball screw mechanism is made of high-strength carbon steel material. The fairing device meets the strength requirements, and at the same time, the overall weight does not exceed 1000 kg, realizing the lightweight requirement.

[0040] Furthermore, dust-proof protection is carried out on the outside of the linear guide rail and the ball screw mechanism by a protective cover.

[0041] In addition, in the power-off state, to prevent the driving mechanism from accidental actions such as inertia and vibration, a self-locking device can also be arranged inside the fairing. The driving mechanism is self-locked by the self-locking device, so that the fairing device can still maintain the current state in the power-off state without affecting the train operation.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present invention, rather than to limit them; although the embodiments of the present invention have been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the solutions of the embodiments of the present invention.

Claims

1. A pantograph fairing device for a high-speed train capable of realizing opening and closing functions, the device comprising a fairing, wherein an opening is processed on the fairing, and it is characterized in that, An automatic door is provided at the opening position of the fairing, and a driving mechanism and a control box are arranged inside the fairing; wherein, the driving mechanism is used to control the opening and closing of the automatic door, and the control box is used to control the motor action of the driving mechanism; The driving mechanism includes a bearing beam, a motor, a ball screw mechanism, a linear guide rail, a guide groove, and a link mechanism; wherein, the bearing beam is fixedly installed on the vehicle body; the motor and the ball screw mechanism are arranged on the bearing beam, and the output shaft of the motor is connected to the ball screw mechanism; the ball screw mechanism is connected to the link mechanism to drive the link mechanism to act; the linear guide rail is arranged on the bearing beam; the guide groove is fixedly installed on the side wall of the fairing; the link mechanism includes a bottom bracket, a first bearing link, a second bearing link, and two bearing members; the bottom bracket is connected to the ball screw mechanism, a slider is arranged on the bottom bracket, and the slider cooperates with the linear guide rail to make the bottom bracket slide along the linear guide rail; the first bearing link and the second bearing link are hinged to both ends of the bottom bracket, a guide wheel is installed on the first bearing link, the guide wheel is arranged in the guide groove and moves along the guide groove; the ends of the two bearing members are respectively hinged to the first bearing link and the second bearing link, and the top of the bearing member is fixedly connected to the automatic door; A manual driving mechanism is further arranged inside the fairing, and a manual operation input end is opened on the side wall of the fairing for inserting a crank; the manual driving mechanism includes a gear and a linear rack; wherein, a crank socket for cooperating with the crank is arranged on the gear, and the gear is driven to rotate by the crank, and the gear meshes with the linear rack; The linear rack is arranged on the linear guide rail and slides along the linear guide rail, and the end of the linear rack is fixedly connected to the slider of the bottom bracket.

2. The pantograph fairing device for high-speed trains capable of realizing opening and closing functions according to claim 1, characterized in that, There are two driving mechanisms, which are respectively arranged on both sides of the fairing.

3. The pantograph fairing device for high-speed trains capable of realizing opening and closing functions according to claim 1, characterized in that, One or two inspection doors are arranged on the fairing.

4. The pantograph fairing device of a high-speed train capable of realizing the opening and closing function according to claim 1, characterized in that, A driven guide groove is further arranged on the side wall of the fairing, and the second bearing link moves along the driven guide groove.

5. A pantograph fairing device for a high-speed train capable of realizing opening and closing functions according to claim 1, wherein the ball screw mechanism comprises a ball screw and a screw nut; wherein, The ball screw is connected to the output shaft of the motor, the screw nut is arranged on the ball screw, and the bottom bracket is fixedly connected to the screw nut.

6. According to the high-speed train pantograph fairing device capable of realizing opening and closing functions described in claim 1, the fairing is made of carbon fiber material, the guide groove, the linear guide rail, the bearing beam, and the link mechanism are made of high-strength aluminum alloy material, and the ball screw mechanism is made of high-strength carbon steel material.

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