CN113715857A - Front end opening and closing mechanism for railway vehicle - Google Patents

Front end opening and closing mechanism for railway vehicle Download PDF

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Publication number
CN113715857A
CN113715857A CN202111097085.6A CN202111097085A CN113715857A CN 113715857 A CN113715857 A CN 113715857A CN 202111097085 A CN202111097085 A CN 202111097085A CN 113715857 A CN113715857 A CN 113715857A
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CN
China
Prior art keywords
cover
link
rear cover
front cover
railway vehicle
Prior art date
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Granted
Application number
CN202111097085.6A
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Chinese (zh)
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CN113715857B (en
Inventor
周君
宋扬
刘国鑫
罗昌杰
于文泽
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Shenzhen Cansinga Technology Co ltd
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Shenzhen Cansinga Technology Co ltd
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Priority to CN202111097085.6A priority Critical patent/CN113715857B/en
Publication of CN113715857A publication Critical patent/CN113715857A/en
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Publication of CN113715857B publication Critical patent/CN113715857B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D17/00—Construction details of vehicle bodies
    • B61D17/02—Construction details of vehicle bodies reducing air resistance by modifying contour ; Constructional features for fast vehicles sustaining sudden variations of atmospheric pressure, e.g. when crossing in tunnels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G7/00—Details or accessories
    • B61G7/10—Mounting of the couplings on the vehicle
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
    • E05F15/53—Power-operated mechanisms for wings using fluid-pressure actuators for swinging wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/616—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

The invention relates to the technical field of railway vehicles and discloses a front end opening and closing mechanism for a railway vehicle. The front end opening and closing mechanism for the railway vehicle comprises a vehicle head cover and a driving mechanism, wherein the vehicle head cover comprises a front cover and a rear cover which are arranged in front and at back along the extension direction of the railway vehicle; the driving mechanism is connected between the vehicle head cover and the railway vehicle body and used for driving the front cover and the rear cover to close or separate, the driving mechanism comprises a translation assembly and a rotating assembly, the translation assembly is connected to one of the front cover and the rear cover and used for driving the front cover and the rear cover to translate, and the rotating assembly is connected to the other one of the front cover and the rear cover and used for driving the front cover and the rear cover to rotate. The front end opening and closing mechanism for the railway vehicle is simple in structure, high in flexibility and convenient to use.

Description

Front end opening and closing mechanism for railway vehicle
Technical Field
The invention relates to the technical field of railway vehicles, in particular to a front end opening and closing mechanism for a railway vehicle.
Background
In order to realize reconnection or separation between vehicles, conventional rail vehicles, such as high-speed rails and motor cars, open-close mechanisms are usually arranged at the head end and the tail end of the vehicles, so that the back-conveying rescue is convenient.
The existing opening and closing mechanism usually comprises two head covers which can be opened and closed, are divided into a left head cover and a right head cover along the longitudinal symmetrical plane of the vehicle body, and are connected to the end part of the vehicle body through a rotating piece. When the two head covers are closed, the head of the vehicle is closed and has a streamline appearance, the running resistance of the vehicle is low, and sundries can be prevented from entering; when the two head covers are separated and opened, the equipment such as an internal coupler can be exposed and can be linked with other vehicles.
The opening and closing mechanism is single in form, limited by the space limitation of the front end of the vehicle, poor in flexibility and inconvenient to use.
Disclosure of Invention
The invention aims to provide a front end opening and closing mechanism for a railway vehicle, which solves the problems of poor flexibility and inconvenient use of the opening and closing mechanism.
In order to solve the above problems, the present invention provides a front end opening and closing mechanism for a railway vehicle, connected to an end portion of a vehicle body of the railway vehicle, the front end opening and closing mechanism for a railway vehicle including:
a vehicle head cover including a front cover and a rear cover disposed forward and rearward along an extending direction of the rail vehicle;
the driving mechanism is connected between the vehicle head cover and the railway vehicle body and used for driving the front cover and the rear cover to close or separate, the driving mechanism comprises a translation component and a rotating component, and the translation component is connected to one of the front cover and the rear cover and used for driving the front cover and the rear cover to translate; the rotating component is connected to the other of the front cover and the rear cover and is used for driving the other of the front cover and the rear cover to rotate.
In one embodiment, the rear cover is connected with the translation assembly and can move back and forth along the horizontal direction, and the front cover is connected with the rotation assembly and can rotate upwards and downwards.
In one embodiment, the translation assembly comprises a first horizontal linear driving member, and the first horizontal linear driving member can drive the rear cover to move between a closing position and an avoiding position, wherein the closing position and the avoiding position are distributed along the horizontal direction.
In one embodiment, the translation assembly comprises a first linear driving member, a first transmission rod and a second transmission rod, the first linear driving piece comprises a main body part and a movable part movably connected with the main body part, the main body part can drive the movable part to do linear motion along a preset direction, an included angle is formed between the preset direction and the horizontal direction, one end of the first transmission rod is rotatably connected to the inner wall of the rear cover, the other end of the first transmission rod is rotatably connected to the movable part of the first linear driving piece, one end of the second transmission rod is rotatably connected to the middle part of the first transmission rod, the other end of the second transmission rod is rotatably connected to the main body part of the first linear driving part, when the movable part moves linearly along a preset direction relative to the main body part, the rear cover can be driven to move between the closing position and the avoiding position through the first transmission rod and the second transmission rod.
In one embodiment, the rotating assembly includes a link mechanism and a transmission mechanism, the link mechanism is connected between the rail vehicle body and the front cover, the transmission mechanism is connected to the link mechanism, and the transmission mechanism can drive the front cover to rotate through the link mechanism.
In one embodiment, the link mechanism is a four-bar hinge mechanism including a frame connected to a rail car body, a link connected to an inner wall of the front cover, and a first link and a second link connected between the frame and the link.
In an embodiment, the transmission mechanism is a second linear driving element, and the second linear driving element is connected to the first side link or the second side link and can drive the first side link and the second side link to rotate upward or downward around the frame, so that the front cover rotates between the closed position and the open position.
In an embodiment, the second linear driving element includes a fixed portion and a movable portion, the fixed portion is fixedly disposed on the body of the rail vehicle, and the movable portion is connected to the first side link or the second side link.
In one embodiment, when the first and second side links rotate upward, the front cover is driven to rotate to the open position, and the front cover is accommodated between the rear cover and the shell of the railway vehicle body; when the first side link and the second side link rotate downwards, the front cover can be driven to rotate to the closed position.
In one embodiment, a first connecting surface is arranged on one side of the front cover facing the rear cover, a second connecting surface is arranged on one side of the rear cover facing the front cover, and when the front cover and the rear cover are closed together, the first connecting surface is attached to the second connecting surface; the first connecting surface and the second connecting surface respectively comprise at least one plane part or at least one arc surface part, and the plane part extends along the vertical direction or is a preset included angle with the vertical direction.
The front end opening and closing mechanism provided by the invention comprises a vehicle head cover and a driving mechanism, wherein the vehicle head cover comprises a front cover and a rear cover, and the front cover and the rear cover can be folded or separated under the action of the driving mechanism. The front cover and the rear cover are arranged at the end part of the rail vehicle and are arranged front and back along the extending direction of the rail vehicle, when the front cover and the rear cover are folded or separated, the front cover and the rear cover have the same overall movement trend, namely move towards the side far away from the rail vehicle body or move towards the side close to the rail vehicle body, the vehicle head cover is reasonable in dividing mode, interference is not prone to occurring in the moving process of the front cover and the rear cover, and flexibility is high. In addition, the driving mechanism comprises a translation assembly and a rotating assembly, the translation assembly is connected to one of the front cover and the rear cover and used for driving the translation assembly to translate, the rotating assembly is connected to the other of the front cover and the rear cover and used for driving the rotation assembly to rotate, the vehicle head cover is driven to move by adopting a translation and rotation composite principle, the space utilization rate of the end part of the rail vehicle body and the flexibility of the movement of the vehicle head cover can be effectively improved, the use is convenient, and the opening and closing requirements under various working conditions can be easily met. In conclusion, the front end opening and closing mechanism for the railway vehicle is simple in structure, high in flexibility and convenient to use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of the front end opening and closing mechanism provided by the present invention when closed;
FIG. 2 is a schematic structural view of the front end opening/closing mechanism according to the present invention;
fig. 3 is a schematic structural view of the front end opening and closing mechanism according to the first embodiment when closed;
fig. 4 is a schematic structural diagram of the front end opening and closing mechanism according to the first embodiment when the front end opening and closing mechanism is opened;
fig. 5 is a second schematic structural view of the front end opening and closing mechanism according to the first embodiment when opened;
fig. 6 is a schematic structural view of the front end opening/closing mechanism according to the second embodiment when closed.
Description of the main element symbols:
100. a front end opening and closing mechanism;
1. a vehicle hood; 11. a front cover; 12. a rear cover; 2. a drive mechanism; 21. a translation assembly; 211. a first linear drive; 2111. a main body portion; 2112. a movable portion; 212. a first drive lever; 213. a second transmission rod; 22. a rotating assembly; 221. a link mechanism; 2211. a frame; 2212. a connecting rod; 2213. a first link lever; 2214. a second side link; 222. a transmission mechanism; 2221. a second linear drive.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, are not to be construed as limiting the patent. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
In a first aspect, the present invention provides a front end opening and closing mechanism for a railway vehicle, which is connected to an end portion of a vehicle body of the railway vehicle.
The first embodiment is as follows:
referring to fig. 1 to 5, the front end opening and closing mechanism 100 includes a vehicle hood 1 and a drive mechanism 2. As shown in fig. 1 and 2, the vehicle head cover 1 includes a front cover 11 and a rear cover 12 that are disposed in front of and behind each other along an extending direction (e.g., a direction X shown in fig. 1) of the rail vehicle. The driving mechanism 2 is connected between the vehicle head cover 1 and the railway vehicle body and used for driving the front cover 11 and the rear cover 12 to close or separate, the driving mechanism 2 comprises a translation component 21 and a rotating component 22, the translation component 21 is connected to one of the front cover 11 and the rear cover 12 and used for driving the translation of the front cover 11 and the rear cover 12, and the rotating component 22 is connected to the other one of the front cover 11 and the rear cover 12 and used for driving the rotation of the rotating component.
The front end opening and closing mechanism 100 may be disposed at an end portion (including a front end and a rear end) of a body of a railway vehicle, and includes two states of being closed and opened. As shown in fig. 1, when the front cover 11 and the rear cover 12 are both in the initial position, the front cover 11 and the rear cover 12 are folded, the vehicle head cover 1 is closed, the vehicle head cover 1 can form a streamline appearance and can prevent sundries from entering the end part of the body of the rail vehicle; as shown in fig. 2, when the front cover 11 and the rear cover 12 are completely opened, the vehicle head cover 1 is opened, and a coupler or the like at the end of the rail vehicle body is exposed to facilitate coupling with another vehicle.
The front end opening and closing mechanism 100 provided by the invention comprises a vehicle hood 1 and a driving mechanism 2, wherein the vehicle hood 1 comprises a front cover 11 and a rear cover 12, and the front cover 11 and the rear cover 12 can be folded or separated under the action of the driving mechanism 2. The front cover 11 and the rear cover 12 are arranged at the end part of the rail vehicle and are arranged front and back along the extending direction of the rail vehicle, when the front cover 11 and the rear cover 12 are folded or separated, the whole moving trends of the front cover 11 and the rear cover 12 are the same, namely the front cover 11 and the rear cover move towards one side far away from the vehicle body of the rail vehicle or move towards one side close to the vehicle body of the rail vehicle, the vehicle head cover 1 is reasonable in dividing mode, interference is not prone to occurring in the moving process of the front cover 11 and the rear cover 12, and flexibility is high. In addition, the driving mechanism 2 comprises a translation assembly 21 and a rotation assembly 22, the translation assembly 21 is connected to one of the front cover 11 and the rear cover 12 and is used for driving the translation assembly to translate, the rotation assembly 22 is connected to the other one of the front cover 11 and the rear cover 12 and is used for driving the rotation assembly to rotate, the vehicle head cover 1 is driven to move by adopting a translation and rotation composite principle, the space utilization rate of the end part of the rail vehicle body and the flexibility of the movement of the vehicle head cover 1 can be effectively improved, the use is convenient, and the opening and closing requirements under various working conditions can be easily met. In summary, the front end opening and closing mechanism 100 for the rail vehicle provided by the invention has the advantages of simple structure, high flexibility and convenience in use.
In this embodiment, as shown in fig. 3 and 4, the rear cover 12 is connected to the translation assembly 21 and can move back and forth along a horizontal direction (for example, the direction X shown in fig. 1), and the front cover 11 is connected to the rotation assembly 22 and can rotate up and down. When the vehicle head cover 1 is opened, the rear cover 12 can be pulled by the translation assembly 21 to move the rear cover 12 toward the side of the rail vehicle body from the closed position (for example, the position of the rear cover 12 in fig. 1) to the retracted position (for example, the position of the rear cover 12 in fig. 2), and the front cover 11 can be pulled by the rotation assembly 22 to rotate the front cover 11 in the vertical plane from the closed position (for example, the position of the front cover 11 in fig. 1) to the open position (for example, the position of the front cover 11 in fig. 2). Above-mentioned reasonable in design, the one side space that the back shroud 12 was kept away from to the front shroud 11 is great, and the difficult motion that takes place in the rotatory process of front shroud 11 interferes, and the flexibility is high.
It will be appreciated that in some embodiments, the front cowl 11 may be coupled to the translating assembly 21 and may be movable in horizontal and vertical directions, and the rear cowl 12 may be coupled to the rotating assembly 22 and may be rotatable up and down. When the vehicle hood 1 is opened, the translation assembly 21 can be used for pushing the front cover 11 to move towards the side away from the rail vehicle body, the front cover 11 is driven to move upwards after the front cover 11 and the rear cover 12 are separated by a certain distance and moves to the avoidance position from the closed position, and the rotation assembly 22 can be used for pulling the rear cover 12 to enable the rear cover 12 to rotate in the vertical plane and rotate to the open position from the closed position.
In this embodiment, as shown in fig. 1, the translating assembly 21 includes a horizontally disposed first linear driving element 211, and the first linear driving element 211 can drive the rear cover 12 to move between the closed position and the retracted position. Wherein the closed position and the avoidance position are distributed along the horizontal direction. As shown in fig. 1 and 2, the closed position is located on a side of the escape position away from the body of the rail vehicle in the extending direction of the rail vehicle. The first linear driving part 211 has a simple structure, is convenient to install and use, is not easy to interfere with other structures or driving devices in the using process, and has long service life and high reliability.
The first linear driving unit 211 may be a ball screw, a driving cylinder, a linear motor, or the like.
Alternatively, in this embodiment, as shown in fig. 1 and fig. 2, the first linear driving element 211 is a driving cylinder, the driving cylinder includes a cylinder body and a piston rod, the cylinder body is horizontally disposed on the body of the rail vehicle, the piston rod is connected to the inner wall of the rear cover 12, and when the piston rod extends and retracts relative to the cylinder body, the piston rod can drive the rear cover 12 to move between the closing position and the avoiding position along the horizontal direction. The driving cylinder has simple structure, high reliability and convenient installation and maintenance.
In order to improve the movement stability of the rear cover 12, in the embodiment, as shown in fig. 3, the front end opening and closing mechanism 100 includes two sets of first linear driving members 211, and the two sets of first linear driving members 211 are connected to the inner wall of the rear cover 12 and are arranged at intervals along the horizontal symmetry. By adopting the above design, the connection strength and the connection stability between the translation assembly 21 and the rear cover 12 can be enhanced, so that the movement of the rear cover 12 between the closing position and the avoiding position is more stable, and the flexibility and the reliability of the front end opening and closing mechanism 100 can be further improved.
In this embodiment, as shown in fig. 3 and 4, the rotating assembly 22 includes a link mechanism 221 and a transmission mechanism 222, the link mechanism 221 is connected between the body of the rail vehicle and the front cover 11, the transmission mechanism 222 is connected to the link mechanism 221, and the transmission mechanism 222 can drive the front cover 11 to rotate through the link mechanism 221.
In this embodiment, as shown in fig. 3 and 4, link mechanism 221 is a hinged four-bar mechanism, which includes a frame 2211, a link 2212, a first link 2213 and a second link 2214, frame 2211 is connected to the body of the railway vehicle, link 2212 is connected to the inner wall of front cover 11, and first link 2213 and second link 2214 are connected between frame 2211 and link 2212. The hinge four-bar mechanism can realize reciprocating swing, and has the advantages of simple structure, small occupied space, high precision and convenient use.
In this embodiment, the transmission mechanism 222 is a second linear driving element 2221, and the second linear driving element 2221 is connected to the first side link 2213 or the second side link 2214, and can drive the first side link 2213 and the second side link 2214 to rotate upward or downward around the frame 2211, so as to rotate the front cover 11 between the open position and the closed position. Alternatively, as shown in fig. 3, 4 and 5, the second linear driving mechanism 2 is connected to the first link bar 2213. The second linear driving member 2221 has a simple structure, is convenient to install and use, is not easy to interfere with other structures or driving devices in the using process, and has a long service life and high reliability.
Further, in this embodiment, the second linear driving element 2221 includes a fixed portion and a movable portion, wherein the fixed portion is fixedly disposed on the body of the rail vehicle, and the movable portion is connected to the first side link 2213 or the second side link 2214. Alternatively, as shown in fig. 3, 4, and 5, the moving part is connected to the first link bar 2213. When the vehicle head cover 1 is opened, the rear cover 12 can be moved to the avoiding position by the translation assembly 21, and then the front cover 11 can be rotated to the opening position by the rotation assembly 22. By adopting the design, the risk of interference between the front cover 11 and the rear cover 12 and between the translation component 21 and the rotation component 22 in the opening process of the vehicle hood 1 can be reduced, and the reliability of the front end opening and closing mechanism 100 is improved.
It will be appreciated that in some embodiments, the fixed portion of the second linear actuator 2221 may also be directly disposed on the translation assembly 21, so that when the vehicle head cover 1 is opened, it is necessary to control the translation of the rear cover 12 and the rotation of the front cover 11 at the same time. By adopting the design, the vehicle hood 1 has high integrity and is convenient to assemble.
Among them, the second linear driving part 2221 may be a ball screw, a driving cylinder, a linear motor, etc.
Alternatively, in this embodiment, as shown in fig. 3, 4 and 5, the second linear driving member 2221 is a driving cylinder, and the driving cylinder includes a cylinder body horizontally disposed on the body of the rail vehicle and a piston rod connected to the middle of the first link rod 2213, and when the piston rod extends and retracts relative to the cylinder body, the first link rod 2213 is driven to rotate around the machine frame 2211. The driving cylinder has simple structure, high reliability and convenient installation and maintenance.
In order to improve the rotation stability of the front cover 11, in this embodiment, as shown in fig. 3, 4 and 5, the front end opening and closing mechanism 100 includes two sets of second linear drivers 2221 and two sets of four-bar linkages, which are connected to the inner wall of the front cover 11 and are symmetrically spaced apart along the horizontal direction. With the above design, the connection strength and the connection stability between the rotary component 22 and the front cover 11 can be enhanced, so that the rotation of the front cover 11 between the closed position and the open position is more stable, and the flexibility and the reliability of the front end opening and closing mechanism 100 can be further improved.
In order to improve the space utilization rationality and the transmission efficiency of the rotating unit 22, in the present embodiment, as shown in fig. 3, the mounting position of the frame 2211 of the four-bar linkage is lower than the mounting position of the second linear actuator 2221, the frame 2211 of the four-bar linkage may be connected to the rail vehicle body at a position near the bottom, and the second linear actuator 2221 may be connected to the rail vehicle body at a position near the top.
It will be appreciated that in some embodiments, the link mechanism 221 may also be a five-bar mechanism, and the transmission mechanism 222 may include a motor, a bearing seat, etc. disposed on the link mechanism 221, and when in use, the motor may directly drive the link 2212 to rotate, so as to drive the front cover 11 to rotate.
In this embodiment, as shown in fig. 1, 2 and 3, when the second linear driving element 2221 drives the first link bar 2213 and the second link bar 2214 to rotate upward, the front cover 11 is driven to rotate to the open position, and the front cover 11 is accommodated between the rear cover 12 and the housing of the body of the rail vehicle; when the second driving member drives the first link bar 2213 and the second link bar 2214 to rotate downward, the front cover 11 can be driven to rotate to the closed position. The front cover 11 rotates in the upper half space, and is suitable for the structure of the front cover, so that interference is not easy to occur in the rotating process. In addition, when the front cover 11 rotates to the open position, the front cover can be completely accommodated between the rear cover 12 and the shell of the rail vehicle body and is arched, so that the front cover is good in streamline shape, small in resistance and not easy to accumulate sundries.
Alternatively, in some embodiments, depending on the structure of the railway vehicle and the available space, the front cover 11 may be driven to rotate to the open position when the second linear driving element 2221 drives the first side link 2213 and the second side link 2214 to rotate downward; when the second driving member drives the first link bar 2213 and the second link bar 2214 to rotate upward, the front cover 11 can be driven to rotate to the open position.
In order to further improve the flexibility of the front end opening and closing mechanism 100, in the embodiment, as shown in fig. 1 and fig. 2, a first connecting surface is disposed on a side of the front cover 11 facing the rear cover 12, and a second connecting surface is disposed on a side of the rear cover 12 facing the front cover 11, and when the front cover 11 and the rear cover 12 are folded, the first connecting surface and the second connecting surface are attached to each other. The first connecting surface and the second connecting surface both include at least one planar portion or at least one arc portion, and the planar portion extends in the vertical direction or forms a predetermined included angle with the vertical direction, that is, as shown in fig. 1, the front cover 11 and the rear cover 12 are divided in an arc shape. By improving the cutting manner between the front cover 11 and the rear cover 12, the risk of interference during the rotation of the front cover 11 can be further reduced, and the flexibility of the front end opening and closing mechanism 100 can be further improved.
In this embodiment, the front end opening and closing mechanism 100 further includes a locking member (not shown) for locking the vehicle hood 1 when the vehicle hood 1 is completely closed or completely opened, so that the positions of the front cover 11 and the rear cover 12 of the vehicle hood 1 are fixed. Alternatively, the locking member may be provided on the body of the rail vehicle or on the inner wall of the vehicle hood 1.
In this embodiment, the front end opening and closing mechanism 100 further includes a limiting member (not shown in the figure) for limiting the moving distance of the translation assembly 21 and the rotation angle of the rotation assembly 22, so as to limit the moving space of the vehicle hood 1 and prevent the front hood 11 from colliding with other components of the rail vehicle when moving or the rear hood 12 rotates.
Example two:
the front end opening/closing mechanism 100 includes a vehicle hood 1 and a drive mechanism 2, similarly to the first embodiment. The driving mechanism 2 is connected between the vehicle head cover 1 and the body of the railway vehicle and is used for driving the front cover 11 and the rear cover 12 to close or separate, and the driving mechanism 2 comprises a translation assembly 21 and a rotating assembly 22.
In this embodiment, as shown in fig. 6, the translation assembly 21 includes a first linear driving element 211, a first driving rod 212 and a second driving rod 213, the first linear driving element 211 includes a main body portion 2111 and a movable portion 2112 movably connected to the main body portion 2111, the main body portion 2111 can drive the movable portion 2112 to move linearly along a predetermined direction, an included angle exists between the predetermined direction and the horizontal direction, one end of the first driving rod 212 is rotatably connected to the inner wall of the rear housing 12, the other end of the first driving rod 212 is rotatably connected to the movable portion 2112 of the first linear driving element 211, one end of the second driving rod 213 is rotatably connected to the middle portion of the first driving rod 212, the other end of the second driving rod 213 is rotatably connected to the main body portion 2111 of the first linear driving element 211, when the movable portion 2112 moves linearly along the predetermined direction relative to the main body portion 2111, the included angle between the first transmission rod 212 and the second transmission rod 213 changes, and the rear cover 12 can be driven to move between the closed position and the avoiding position.
It should be noted that the first linear driving element 211 may be vertically disposed, or may be disposed at an angle inclined with respect to the vertical direction (for example, the direction Y shown in fig. 1).
By using the above-mentioned translation assembly 21, the linear reciprocating motion of the first linear driving element 211 in the vertical plane can be converted into the linear reciprocating motion of the rear cover 12 in the horizontal plane. Specifically, as shown in fig. 6, when the movable portion 2112 of the first linear driving element 211 moves linearly along a predetermined direction relative to the main body portion 2111, the first driving rod 212 and the second driving rod 213 are driven to move respectively at one end of the movable portion 2112 and one end of the first driving rod 212, so that an included angle between the first driving rod 212 and the second driving rod 213 is changed, and the rear cover 12 can move back and forth along a horizontal direction. By adopting the above design, the internal structural layout of the front end opening and closing mechanism 100 can be optimized, the occupied space of the translation assembly 21 in the horizontal direction is reduced, and the space utilization rate is improved, so that the flexibility of the front end opening and closing mechanism 100 can be further improved.
The first linear driving unit 211 may be a ball screw, a driving cylinder, a linear motor, or the like.
Optionally, in this embodiment, as shown in fig. 6, the first linear driving element 211 is a driving cylinder, the driving cylinder includes a cylinder body and a piston rod, the cylinder body is vertically disposed on the vehicle body of the rail vehicle, the piston rod is connected to the inner wall of the rear cover 12 through the first driving rod 212, the cylinder body is connected to the middle portion of the first driving rod 212 through the second driving rod 213, when the piston rod extends and retracts relative to the cylinder body, the first driving rod 212 and the second driving rod 213 can be driven to rotate, and then the rear cover 12 can be driven to move between the closing position and the avoiding position along the horizontal direction.
In order to improve the movement stability of the rear cover 12, in the embodiment, as shown in fig. 6, the front end opening and closing mechanism 100 includes two sets of first linear driving members 211, and the two sets of first linear driving members 211 are connected to the inner wall of the rear cover 12 and are arranged at intervals along the horizontal symmetry. By adopting the above design, the connection strength and the connection stability between the translation assembly 21 and the rear cover 12 can be enhanced, so that the movement of the rear cover 12 between the closing position and the avoiding position is more stable, and the flexibility and the reliability of the front end opening and closing mechanism 100 can be further improved.
In a second aspect, the present invention further provides a rail vehicle, including a vehicle body and a front end opening and closing mechanism 100 provided at an end portion of the vehicle body. The front end opening/closing mechanism 100 includes a vehicle hood 1 and a drive mechanism 2. The vehicle head cover 1 includes a front cover 11 and a rear cover 12 which are disposed in front and rear in an extending direction of the rail vehicle. The driving mechanism 2 is connected between the vehicle head cover 1 and the railway vehicle body and used for driving the front cover 11 and the rear cover 12 to close or separate, the driving mechanism 2 comprises a translation component 21 and a rotating component 22, the translation component 21 is connected to one of the front cover 11 and the rear cover 12 and used for driving the translation of the front cover 11 and the rear cover 12, and the rotating component 22 is connected to the other one of the front cover 11 and the rear cover 12 and used for driving the rotation of the rotating component.
According to the rail vehicle provided by the invention, by optimizing the structure of the front end opening and closing mechanism 100, the flexibility of the front end opening and closing mechanism 100 and the rail vehicle provided with the front end opening and closing mechanism 100 can be improved, so that the practicability and convenience of the rail vehicle can be improved, and the reconnection between the rail vehicles or the return rescue can be conveniently realized.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.

Claims (10)

1. A front end opening and closing mechanism for a railway vehicle, which is connected to an end portion of a railway vehicle body, is characterized by comprising:
a vehicle head cover including a front cover and a rear cover disposed forward and rearward along an extending direction of the rail vehicle;
the driving mechanism is connected between the vehicle head cover and the railway vehicle body and used for driving the front cover and the rear cover to close or separate, the driving mechanism comprises a translation component and a rotating component, and the translation component is connected to one of the front cover and the rear cover and used for driving the front cover and the rear cover to translate; the rotating component is connected to the other of the front cover and the rear cover and is used for driving the other of the front cover and the rear cover to rotate.
2. The front end opening and closing mechanism for a railway vehicle as claimed in claim 1, wherein the rear cover is connected to the translating unit and is movable forward and backward in a horizontal direction, and the front cover is connected to the rotating unit and is rotatable upward and downward.
3. The front end opening and closing mechanism for a railway vehicle as claimed in claim 2, wherein the translation assembly comprises a horizontally disposed first linear drive member capable of driving the rear cover to move between a closed position and an avoidance position, the closed position and the avoidance position being horizontally distributed.
4. The front end opening and closing mechanism for the railway vehicle as claimed in claim 2, wherein the translation assembly comprises a first linear driving member, a first transmission rod and a second transmission rod, the first linear driving member comprises a main body part and a movable part movably connected to the main body part, the main body part can drive the movable part to move linearly along a preset direction, an included angle exists between the preset direction and the horizontal direction, one end of the first transmission rod is rotatably connected to the inner wall of the rear cover, the other end of the first transmission rod is rotatably connected to the movable part of the first linear driving member, one end of the second transmission rod is rotatably connected to the middle part of the first transmission rod, the other end of the second transmission rod is rotatably connected to the main body part of the first linear driving member, and when the movable part moves linearly along the preset direction relative to the movable part, the rear cover can be driven to move between a closing position and an avoiding position through the first transmission rod and the second transmission rod.
5. The front end opening and closing mechanism for the rail vehicle as claimed in claim 2, wherein the rotating assembly comprises a link mechanism and a transmission mechanism, the link mechanism is connected between the rail vehicle body and the front cover, the transmission mechanism is connected to the link mechanism, and the transmission mechanism can drive the front cover to rotate through the link mechanism.
6. The front end opening and closing mechanism for a railway vehicle according to claim 5, wherein the link mechanism is a four-bar hinge mechanism including a frame, a link, a first link and a second link, the frame being connected to a railway vehicle body, the link being connected to an inner wall of the front cowl, the first link and the second link being connected between the frame and the link.
7. The front end opening and closing mechanism for a railway vehicle as claimed in claim 6, wherein the transmission mechanism is a second linear driving member connected to the first side link or the second side link and capable of driving the first side link and the second side link to rotate upward or downward around the frame so as to rotate the front cover between the closed position and the open position.
8. The front end opening and closing mechanism for a railway vehicle as claimed in claim 7, wherein the second linear actuator includes a fixed part fixedly disposed on the body of the railway vehicle and a moving part connected to the first link or the second link.
9. The front end opening and closing mechanism for a railway vehicle as claimed in claim 7, wherein the first and second side links rotate upward to drive the front cover to rotate to the open position, the front cover being accommodated between the rear cover and the housing of the railway vehicle body; when the first side link and the second side link rotate downwards, the front cover can be driven to rotate to the closed position.
10. The front end opening and closing mechanism for a railway vehicle according to claim 1, wherein a first connecting surface is provided on a side of the front cover facing the rear cover, and a second connecting surface is provided on a side of the rear cover facing the front cover, and the first connecting surface and the second connecting surface are in abutting connection when the front cover and the rear cover are closed together;
the first connecting surface and the second connecting surface respectively comprise at least one plane part or at least one arc surface part, and the plane part extends along the vertical direction or is a preset included angle with the vertical direction.
CN202111097085.6A 2021-09-18 2021-09-18 Front end opening and closing mechanism for railway vehicle Active CN113715857B (en)

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CN209479659U (en) * 2019-01-11 2019-10-11 中车青岛四方车辆研究所有限公司 Water conservancy diversion cover opening/closing mechanism and pod
CN110847744A (en) * 2019-11-29 2020-02-28 南京雷尔伟新技术股份有限公司 Internal contraction type electric opening and closing mechanism

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Publication number Priority date Publication date Assignee Title
JPH02220965A (en) * 1989-02-20 1990-09-04 Tokyu Car Corp Forefront formed part housing system in high speed train
EP0811539A2 (en) * 1996-06-05 1997-12-10 BREDA COSTRUZIONI FERROVIARIE S.p.A. Front structure of a railway electric locomotive with a retractable door for the access to the automatic coupler
JP3078797B1 (en) * 1999-06-04 2000-08-21 川崎重工業株式会社 Switchgear for coupler cover
CN1446721A (en) * 2002-03-26 2003-10-08 中南大学 Device for opening and shutting end shield on head of railroad train
JP2009227055A (en) * 2008-03-21 2009-10-08 Nippon Sharyo Seizo Kaisha Ltd Railroad vehicle
JP2011005902A (en) * 2009-06-24 2011-01-13 Tokyu Car Corp Coupling hood door for railroad vehicle
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CN209479659U (en) * 2019-01-11 2019-10-11 中车青岛四方车辆研究所有限公司 Water conservancy diversion cover opening/closing mechanism and pod
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113942529A (en) * 2021-12-01 2022-01-18 青岛思锐科技有限公司 Train end protection device
CN113942529B (en) * 2021-12-01 2022-12-13 中车制动系统有限公司 Train end protection device

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Denomination of invention: Front end opening and closing mechanism for railway vehicles

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Pledgee: Industrial and Commercial Bank of China Co.,Ltd. Shenzhen Xinsha Sub branch

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