Front end opening and closing mechanism for motor train unit

Abstract

The utility model discloses a front end opening and closing mechanism for a motor train unit, which relates to the technical field of railway vehicles and comprises a frame, a hood, a main driving device, a locking plate and an auxiliary driving device. The head cover comprises a left cover plate and a right cover plate, and the left cover plate and the right cover plate are rotationally mounted on the rack; the main driving device is used for controlling the hood to be opened or closed; the locking plate is slidably connected to the rack, the locking plate has a locking position and an unlocking position, a first fixing groove and a second fixing groove are formed in the locking plate, and when the locking plate is located at the locking position, the first fixing groove can fix the hood in a closed state, and the second fixing groove can fix the hood in an open state; the auxiliary driving device is used for driving the locking plate to be switched between the locking position and the unlocking position. According to the utility model, the hood can be effectively fixed in an open state and a closed state.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of rail vehicles, especially relates to a front end opening and closing mechanism for motor train unit. BACKGROUND

[0002] The front end opening and closing mechanism is an important component of the rail vehicle, and mainly functions to control the front end cover to realize opening and closing functions. When the front end cover is opened, the rail vehicle can perform operations such as car coupler reconnection, emergency rescue, and equipment maintenance. When the front end cover is closed, the rail vehicle can have a streamlined shape during high-speed operation, thereby reducing the running resistance and improving the safety and stability performance. During high-speed driving, the motor train unit is subjected to large air pressure and vibration. The hatch of the existing opening and closing mechanism may have gaps in the closed state, which affects the aerodynamic performance of the vehicle and the protection of the internal equipment. Meanwhile, during the opening and closing process, the hatch may also shake abnormally due to insufficient stability. SUMMARY

[0003] The utility model aims at at least solving one of the technical problems existing in the prior art. To this end, the utility model provides a front end opening and closing mechanism for a motor train unit, which can effectively fix the cover in the open state and the closed state.

[0004] According to the front end opening and closing mechanism for the motor train unit, the main drive device is used to control the opening or closing of the cover, and the auxiliary drive device is used to drive the locking plate to switch between the locking position and the unlocking position. When the locking plate is in the locking position, the first fixing groove can effectively fix the cover in the closed state, so that the cover can be firmly closed when normally operating. The second fixing groove can effectively fix the cover in the open state, thereby preventing the cover from shaking or accidentally closing due to its own gravity or external force.

[0005] According to the front end opening and closing mechanism for the motor train unit, the main drive device is used to control the opening or closing of the cover, and the auxiliary drive device is used to drive the locking plate to switch between the locking position and the unlocking position. When the locking plate is in the locking position, the first fixing groove can effectively fix the cover in the closed state, so that the cover can be firmly closed when normally operating. The second fixing groove can effectively fix the cover in the open state, thereby preventing the cover from shaking or accidentally closing due to its own gravity or external force.

[0006] According to some embodiments of the utility model, left cover plate is connected with left upper rotating arm and left lower rotating arm, left upper rotating arm and left lower rotating arm are all rotationally installed to the rack, the rotation axis of left upper rotating arm and the rotation axis of left lower rotating arm coincide in vertical direction.

[0007] According to some embodiments of the utility model, right cover plate is connected with right upper rotating arm and right lower rotating arm, right upper rotating arm and right lower rotating arm are all rotationally installed to the rack, the rotation axis of right upper rotating arm and the rotation axis of right lower rotating arm coincide in vertical direction.

[0008] According to some embodiments of the utility model, main drive device includes left electric push rod and right electric push rod, the telescopic end of left electric push rod is hinged with left upper rotating arm, the fixed end of left electric push rod is hinged with the rack, the telescopic end of right electric push rod is hinged with right upper rotating arm, the fixed end of right electric push rod is hinged with the rack.

[0009] According to some embodiments of the utility model, a plurality of adjustable limit parts are arranged on the rack, and the adjustable limit parts are used to limit the angle of rotation of the left cover plate and the right cover plate.

[0010] According to some embodiments of the utility model, a plurality of position sensors are arranged on the rack, and the position sensors are used to detect the position of the left cover plate and the right cover plate.

[0011] According to some embodiments of the utility model, the lower end of right lower rotating arm and left lower rotating arm is provided with universal wheel, the horizontal support surface is arranged on the rack, and the upper end of support surface is in abutment with universal wheel.

[0012] According to some embodiments of the utility model, the upper end of right lower rotating arm and left lower rotating arm is provided with clamping part, the clamping part can be embedded in first fixed slot when head cover is closed, and the clamping part can be embedded in second fixed slot when head cover is opened.

[0013] According to some embodiments of the utility model, the opening direction of first fixed slot and second fixed slot is same with the running direction of locking plate.

[0014] According to some embodiments of the utility model, vice drive device includes screw rod and motor, the rotation of screw rod is rotationally installed to the rack, the motor is connected with the rack, the motor is used to drive the rotation of screw rod, the lower end of locking plate is provided with nut, and the screw rod is matched with nut.

[0015] Additional aspects and advantages of the present application will be set forth in part in the following description, and in part will become apparent to those skilled in the art upon examination of the following description, or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0016] The present application will be further described below in conjunction with the drawings and embodiments, wherein:

[0017] Figure 1 FIG. 1 is a schematic view of an installation structure according to an embodiment of the present application;

[0018] Figure 2 FIG. 2 is a schematic view of a main driving device according to an embodiment of the present application;

[0019] Figure 3 FIG. 3 is a schematic view of a sub-driving device according to an embodiment of the present application;

[0020] Figure 4 FIG. 4 is a schematic view of a locking plate according to an embodiment of the present application.

[0021] REFERENCE NUMERALS:

[0022] Rack 100, support surface 101;

[0023] Head cover 200, left cover plate 210, right cover plate 220;

[0024] Main driving device 300, left electric push rod 310, right electric push rod 320;

[0025] Locking plate 400, nut 401, first fixing groove 410, second fixing groove 420;

[0026] Sub-driving device 500, lead screw 510, electric motor 520;

[0027] Left upper rotating arm 600, universal wheel 601, left lower rotating arm 610;

[0028] Right upper rotating arm 700, clamping portion 701, right lower rotating arm 710;

[0029] Adjustable limiting portion 800;

[0030] Position sensor 900. DETAILED DESCRIPTION

[0031] Embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0032] In the description of the utility model, it is understood that, if the direction description, for example, the direction or position relation of the indication such as upper, lower is based on the direction or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the device or element must have a particular orientation, a particular orientation and operation, therefore, it can not be understood as the limitation of the utility model.

[0033] In the description of the utility model, more refers to two or more. If there is a description to the first, the second is only used for distinguishing the purpose of technical features, and can not be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0034] In the description of the utility model, unless otherwise specified, the words such as setting, installation, connection should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0035] Refer to Figures 1 to 4As shown, an embodiment of the utility model discloses a front end opening and closing mechanism for motor train unit, include: frame 100, head cover 200, main drive device 300, locking plate 400, vice drive device 500, head cover 200 includes left cover plate 210 and right cover plate 220, left cover plate 210 and right cover plate 220 are rotatably installed on frame 100. Left cover plate 210 and right cover plate 220 are rotatably installed on frame 100, so that the opening and closing action of head cover 200 is more flexible and stable. Left cover plate 210 and right cover plate 220 are symmetrically arranged. Left cover plate 210 and right cover plate 220 can be made of high-strength, lightweight and aerodynamic materials, such as carbon fiber or special alloy. The shape of left cover plate 210 and right cover plate 220 is customized according to the aerodynamic requirements of the head of motor train unit, to ensure seamless integration with the overall shape of the head when closed, and to reduce air resistance. In the specific structure, left cover plate 210 and right cover plate 220 can be provided with reinforcing ribs or frame structure to improve their strength and stability to withstand various external forces during train operation. Main drive device 300 is used for controlling the opening or closing of head cover 200. Main drive device 300 is preferably electrically driven to increase the reliability of the drive. When head cover 200 is opened, left cover plate 210 and right cover plate 220 are separated to expose frame 100. When head cover 200 is closed, left cover plate 210 and right cover plate 220 are folded, and the whole head cover 200 is in a closed state, and the whole head cover 200 is in a closed state. The shape of the streamlined shape with smaller wind resistance reduces air resistance. Locking plate 400 is slidably connected to frame 100 by two parallel straight guide rails, and locking plate 400 can move in the front and rear directions. Locking plate 400 has a locking position and an unlocking position, and first fixing groove 410 and second fixing groove 420 are formed on locking plate 400. First fixing groove 410 is provided with two corresponding left cover plate 210 and right cover plate 220 respectively, and second fixing groove 420 is provided with two corresponding left cover plate 210 and right cover plate 220 respectively. When locking plate 400 is in the locking position, first fixing groove 410 can effectively fix head cover 200 in the closed state, so that head cover 200 can be firmly closed during normal operation, forming a complete head protection structure, which can prevent foreign matters such as flying birds and stones from hitting the key equipment inside the head, such as electrical system and braking system components, during high-speed driving. Moreover, it can effectively resist rain and sand intrusion under adverse weather conditions such as heavy rain and strong wind, and ensure the normal operation of the equipment inside the vehicle, providing a safe driving environment for passengers and staff. Second fixing groove 420 can effectively fix head cover 200 in the open state, preventing it from shaking or accidentally closing due to its own gravity or external force. Vice drive device 500 is used to drive locking plate 400 to switch between the locking position and the unlocking position.

[0036] Refer to Figures 1 to 3As shown, it can be understood that the left cover plate 210 is connected with a left upper rotating arm 600 and a left lower rotating arm 610, both of which are rotatably installed on the rack 100, and the rotating shafts of the left upper rotating arm 600 and the left lower rotating arm 610 coincide in the vertical direction. The left cover plate 210 is connected with the rack 100 through two hinge points, which ensures the stability and synchronism of the left cover plate 210 during rotation. This design not only improves the load-bearing capacity of the left cover plate 210, but also enhances its ability to adapt to complex working environments.

[0037] Referring to Figures 1 to 3 As shown, it can be understood that the right cover plate 220 is connected with a right upper rotating arm 700 and a right lower rotating arm 710, both of which are rotatably installed on the rack 100, and the rotating shafts of the right upper rotating arm 700 and the right lower rotating arm 710 coincide in the vertical direction. The right cover plate 220 is connected with the rack 100 through two hinge points, which ensures the stability and synchronism of the right cover plate 220 during rotation. This design not only improves the load-bearing capacity of the right cover plate 220, but also enhances its ability to adapt to complex working environments.

[0038] Referring to Figures 1 to 3 As shown, it can be understood that the main driving device 300 includes a left electric push rod 310 and a right electric push rod 320. The telescopic end of the left electric push rod 310 is connected with the left upper rotating arm 600 through a hinge, and the fixed end of the left electric push rod 310 is connected with the rack 100 through a hinge. The telescopic end of the right electric push rod 320 is connected with the right upper rotating arm 700 through a hinge, and the fixed end of the right electric push rod 320 is also connected with the rack 100 through a hinge. The opening and closing of the left cover plate 210 and the right cover plate 220 are achieved by the rotation of the hinges driven by the extension and retraction of the left electric push rod 310 and the right electric push rod 320. The left electric push rod 310 and the right electric push rod 320 are preferably electric push rods with a manually operated handle. In the event of a power failure, the manually operated handle is installed on the electric push rod, and the push rod is moved by shaking the handle to deal with emergency situations such as power failure. The use of electric push rods as the main driving components has the advantages of sufficient pushing force and stroke, which can meet the opening and closing requirements of the head cover 200. The motor part should be selected with appropriate torque and speed, and the rotation direction and speed of the motor are accurately controlled by the control system. It can be predicted that the left electric push rod 310 and the right electric push rod 320 are equipped with feedback devices such as encoders, which can real-time feedback position information to the control system to realize precise position control and automatic locking function.

[0039] Referring to Figures 2 to 3As shown, it can be understood that the rack 100 is provided with a plurality of adjustable limit parts 800, and the adjustable limit parts 800 are long screws screwed on the rack 100. The plurality of adjustable limit parts 800 can respectively abut against the right upper rotating arm 700 and the left upper rotating arm 600, and the adjustable limit parts 800 are used to limit the rotating angle of the left cover plate 210 and the right cover plate 220. By rotating the screw, the axial position of the screw can be finely adjusted, so that the position of the left cover plate 210 and the right cover plate 220 when closed can be finely adjusted, so that the gap between the left cover plate 210 and the right cover plate 220 is as small as possible, and the safety of the head cover 200 during opening and closing is ensured.

[0040] Referring to Figures 1 to 4 As shown, it can be understood that the rack 100 is provided with a plurality of position sensors 900, and the position sensors 900 are used to detect the positions of the left cover plate 210 and the right cover plate 220. The position sensors 900 are used to monitor the state of the head cover 200 in real time, and provide reliable data support for the safe operation of the motor train unit. The position sensors 900 can be selected from photoelectric sensors, contact switches, and ultrasonic distance sensors.

[0041] Referring to Figures 1 to 4 As shown, it can be understood that the lower ends of the right lower rotating arm 710 and the left lower rotating arm 610 are both bolted with universal wheels 601, and the rack 100 is horizontally provided with a support surface 101, and the upper end of the support surface 101 abuts against the universal wheels 601. The universal wheels 601 play a role in assisting to support the left cover plate 210 and the right cover plate 220 in the vertical direction, ensuring the stability of the left cover plate 210 and the right cover plate 220 during movement or operation, and further improving the stability and durability of the whole device.

[0042] Referring to Figures 1 to 4 As shown, it can be understood that the right lower rotating arm 710 and the left lower rotating arm 610 are both provided with clamping parts 701, and the clamping parts 701 can be embedded into the corresponding first fixed slots 410 when the head cover 200 is closed, and the clamping parts 701 can be embedded into the corresponding second fixed slots 420 when the head cover 200 is opened. One locking plate 400 can be used to fix the head cover 200 in the closed state and the opened state, and the structure is simple and reliable.

[0043] Referring to Figures 1 to 4 As shown, it can be understood that the opening direction of the first fixed slot 410 and the second fixed slot 420 is the same as the running direction of the locking plate 400. Such a design makes the locking plate 400 more smooth when switching states, reduces mechanical wear, and prolongs the service life of the mechanism.

[0044] Referring to Figures 2 to 4As shown, it can be understood that the auxiliary driving device 500 comprises a screw rod 510 and a motor 520, the screw rod 510 is rotatably installed on the frame 100, the motor 520 is connected with the frame 100, the motor 520 is used for driving the screw rod 510 to rotate, the lower end of the locking plate 400 is fixedly connected with a nut 401, and the screw rod 510 is matched with the nut 401. The locking plate 400 is switched between the locking position and the unlocking position through the rotation of the screw rod 510, and this design not only improves the response speed of the mechanism, but also enhances the accuracy of operation.

[0045] It can be foreseen that the edges of the left cover plate 210 and the right cover plate 220 are provided with sealing strips, which can effectively prevent rain, wind sand, dust and the like from entering the inside of the vehicle head.

[0046] Working principle: when the head cover 200 is closed, the left cover plate 210 and the right cover plate 220 are close to each other and folded, the locking plate 400 is in the locking position, the clamping part 701 is located in the first fixed groove 410, the first fixed groove 410 prevents the clamping part 701 from moving, so that the left cover plate 210 and the right cover plate 220 cannot rotate, thereby making the head cover 200 firmly closed when normally operating. When the head cover 200 needs to be opened, the motor 520 drives the screw rod 510 to rotate and drives the locking plate 400 to move to the unlocking position, the clamping part 701 is separated from the first fixed groove 410, the left electric push rod 310 and the right electric push rod 320 retract to drive the left cover plate 210 and the right cover plate 220 to rotate and separate from each other, so as to open the head cover 200, when the position sensor 900 detects that the head cover 200 has been in the open state, the motor 520 drives the screw rod 510 to rotate and drives the locking plate 400 to move to the locking position, so that the clamping part 701 enters the second fixed groove 420, thereby preventing the head cover 200 from shaking or accidentally closing when being opened due to its own gravity or external force.

[0047] The above embodiment of the utility model is described in detail in combination with the drawings, but the utility model is not limited to the above embodiment, and various changes can be made within the knowledge range possessed by ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A front-end opening and closing mechanism for a high-speed train, characterized in that, include: Rack (100); A head cover (200) includes a left cover plate (210) and a right cover plate (220), both of which are rotatably mounted on the frame (100). A main drive unit (300) is used to control the opening or closing of the headgear (200); A locking plate (400) is slidably connected to the frame (100). The locking plate (400) has a locking position and an unlocking position. The locking plate (400) is provided with a first fixing groove (410) and a second fixing groove (420). When the locking plate (400) is in the locking position, the first fixing groove (410) can fix the head cover (200) in the closed state, and the second fixing groove (420) can fix the head cover (200) in the open state. A secondary drive unit (500) is used to drive the locking plate (400) to switch between a locked position and an unlocked position.

2. The front-end opening and closing mechanism for a high-speed train according to claim 1, characterized in that: The left cover plate (210) is connected to an upper left rotating arm (600) and a lower left rotating arm (610). Both the upper left rotating arm (600) and the lower left rotating arm (610) are rotatably mounted on the frame (100). The rotation axis of the upper left rotating arm (600) and the rotation axis of the lower left rotating arm (610) coincide in the vertical direction.

3. The front-end opening and closing mechanism for a high-speed train according to claim 2, characterized in that: The right cover plate (220) is connected to an upper right rotating arm (700) and a lower right rotating arm (710). Both the upper right rotating arm (700) and the lower right rotating arm (710) are rotatably mounted on the frame (100). The rotation axes of the upper right rotating arm (700) and the lower right rotating arm (710) coincide in the vertical direction.

4. The front-end opening and closing mechanism for a high-speed train according to claim 3, characterized in that: The main drive unit (300) includes a left electric push rod (310) and a right electric push rod (320). The telescopic end of the left electric push rod (310) is hinged to the upper left rotating arm (600), and the fixed end of the left electric push rod (310) is hinged to the frame (100). The telescopic end of the right electric push rod (320) is hinged to the upper right rotating arm (700), and the fixed end of the right electric push rod (320) is hinged to the frame (100).

5. The front-end opening and closing mechanism for a high-speed train according to claim 4, characterized in that: The frame (100) is provided with a plurality of adjustable limiting parts (800), which are used to limit the rotation angle of the left cover plate (210) and the right cover plate (220).

6. The front-end opening and closing mechanism for a high-speed train according to claim 5, characterized in that: The frame (100) is provided with a plurality of position sensors (900), which are used to detect the positions of the left cover plate (210) and the right cover plate (220).

7. The front-end opening and closing mechanism for a high-speed train according to claim 6, characterized in that: Both the lower right rotating arm (710) and the lower left rotating arm (610) are provided with casters (601) at their lower ends. A support surface (101) is horizontally provided on the frame (100), and the upper end of the support surface (101) abuts against the casters (601).

8. The front-end opening and closing mechanism for a high-speed train according to claim 6, characterized in that: Both the lower right rotating arm (710) and the lower left rotating arm (610) are provided with a snap-fit ​​part (701). The snap-fit ​​part (701) can be inserted into the first fixing groove (410) when the head cover (200) is closed, and the snap-fit ​​part (701) can be inserted into the second fixing groove (420) when the head cover (200) is open.

9. The front-end opening and closing mechanism for a high-speed train according to claim 8, characterized in that: The opening directions of the first fixing groove (410) and the second fixing groove (420) are the same as the running direction of the locking plate (400).

10. The front-end opening and closing mechanism for a high-speed train according to claim 1, characterized in that: The auxiliary drive device (500) includes a lead screw (510) and a motor (520). The lead screw (510) is rotatably mounted on the frame (100). The motor (520) is connected to the frame (100) and is used to drive the lead screw (510) to rotate. A nut (401) is provided at the lower end of the locking plate (400), and the lead screw (510) cooperates with the nut (401).

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