Maglev train apron board and maglev train

Abstract

The invention discloses a maglev train apron board and a maglev train, the maglev train apron board comprises a first apron board piece, a second apron board piece, a first telescopic piece and a second telescopic piece, the upper end of the first apron board piece is hinged to a train body, and the upper end of the second apron board piece is hinged to the lower end of the first apron board piece; one end of the first telescopic piece is hinged to the vehicle body, the other end of the first telescopic piece is hinged to the first apron board piece, and the first telescopic piece is used for controlling opening and closing of the first apron board piece; one end of the second telescopic piece is hinged to the first apron board piece, the other end of the second telescopic piece is hinged to the second apron board piece, and the second telescopic piece is used for controlling opening and closing of the second apron board piece. Due to the fact that the second apron board piece can be opened and closed, pitching and torsional displacement of the suspension frame when a maglev train passes through a curve can be adapted, or the second apron board piece is opened outwards by a certain angle under the action of certain negative pressure so as to increase air exchange inside and outside the apron board, and therefore aerodynamic loads borne by the apron board are reduced, and the apron board is prevented from being damaged. And as the aerodynamic load borne by the apron board is reduced, the structural light weight of the apron board is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rail transit, in particular to a maglev train apron and a maglev train. BACKGROUND

[0002] The maglev train apron is installed at the bottom of the car body of the maglev train, which can protect the undercarriage equipment of the maglev train and improve the aerodynamic performance of the maglev train during operation.

[0003] The existing maglev train apron is usually of an integral structure, and the apron locking structure of the car body is usually designed according to the maximum aerodynamic load borne by the outer surface of the apron, which results in that the apron bears a large bending moment when passing through a curve, and is not conducive to the lightweight of the apron structure.

[0004] Therefore, how to reduce the aerodynamic load of the apron to realize the lightweight of the apron structure is a technical problem to be solved by those skilled in the art. SUMMARY

[0005] An object of the present application is to provide a maglev train apron which can effectively reduce the load of the apron and realize the lightweight of the structure, and another object is to provide a maglev train comprising the above-mentioned maglev train apron.

[0006] To achieve the above-mentioned objects, the present application provides the following technical solutions:

[0007] A maglev train apron comprises a first apron piece, a second apron piece, a first telescopic piece and a second telescopic piece, the upper end of the first apron piece is hinged to a car body, and the upper end of the second apron piece is hinged to the lower end of the first apron piece; one end of the first telescopic piece is hinged to the car body, and the other end is hinged to the first apron piece, and the first telescopic piece is used for controlling the opening and closing of the first apron piece; one end of the second telescopic piece is hinged to the first apron piece, and the other end is hinged to the second apron piece, and the second telescopic piece is used for controlling the opening and closing of the second apron piece.

[0008] In some embodiments, the upper end of the first apron piece is provided with a first hinge support, a first hinge shaft is inserted into the first hinge support, a hinge groove is arranged on the first hinge support, an adjusting nut is further arranged on the first hinge shaft, and a limiting portion is arranged on the outer side of the adjusting nut; an apron mounting seat is arranged on the car body, a hinge end is arranged on the apron mounting seat, a rotation-stopping washer is arranged on the hinge end, the hinge end is sleeved on the first hinge shaft and located in the hinge groove, and the rotation-stopping washer is used for clamping the limiting portion to limit the longitudinal position of the apron relative to the car body.

[0009] In some embodiments, the skirt mounting base is provided with a concave limiting groove near the hinged end, and the first skirt member is provided with a limiting piece at the upper end, and the first skirt member stops rotating when the limiting piece contacts with the limiting groove.

[0010] In some embodiments, the first telescopic piece is a first gas spring, the upper end of the first gas spring is hinged to the inner side of the first skirt member, and the skirt mounting base is provided with a downward extending support base, and the lower end of the first gas spring is hinged to the support base.

[0011] In some embodiments, the first skirt member is provided with a locking piece, the lower end of the support base is provided with a locking hole, the locking piece is locked with the locking hole when the locking piece is rotated to a first position, and the locking piece is unlocked from the locking hole when the locking piece is rotated to a second position.

[0012] In some embodiments, the second telescopic piece is a second gas spring, the inner side of the lower end of the first skirt member is provided with a second hinge support extending inward, the upper end of the second gas spring is hinged to the second hinge support, and the lower end of the second gas spring is hinged to the inner side of the second skirt member.

[0013] In some embodiments, the width ratio of the first skirt member and the second skirt member is 9:4.

[0014] In some embodiments, the opening angle of the second skirt member within a preset range increases with the increase of the running speed of the maglev train.

[0015] In some embodiments, the lower end of the second skirt member is provided with a buffer rubber strip, the lower end of the second skirt member is provided with a clamping groove, the upper end of the buffer rubber strip is provided with a clamping protrusion matched with the clamping groove, the clamping protrusion is provided with an anti-dropping rod, the side wall of the clamping groove is connected with a fastener, and the fastener is used to limit the longitudinal position of the anti-dropping rod relative to the buffer rubber strip, so as to limit the longitudinal position of the buffer rubber strip relative to the second skirt member.

[0016] A maglev train includes the above-mentioned any one of the maglev train skirt, and further includes a vehicle body, and the maglev train skirt is installed on the side of the vehicle body in an openable and closable manner.

[0017] Compared with the prior art, the above technical solution has at least the following advantages:

[0018] The present invention provides a maglev train skirt, comprising: a first skirt member, a second skirt member, a first telescopic member, and a second telescopic member. The upper end of the first skirt member is hinged to the vehicle body, and the upper end of the second skirt member is hinged to the lower end of the first skirt member. One end of the first telescopic member is hinged to the vehicle body, and the other end is hinged to the first skirt member. The first telescopic member is used to control the opening and closing of the first skirt member. The second telescopic member is hinged to the first skirt member at one end, and hinged to the second skirt member at the other end. The second telescopic member is used to control the opening and closing of the second skirt member. Since the second skirt member can be opened and closed, it can adapt to the pitch and torsional displacement of the suspension frame when the maglev train passes through a curve, or under the action of a certain negative pressure, the second skirt member can be opened outward at a certain angle to increase air exchange between the inside and outside of the skirt member, thereby reducing the aerodynamic load on the skirt member to avoid damage to the skirt member. Since the aerodynamic load on the skirt member is reduced, it is conducive to its lightweight structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0020] Figure 1 A schematic structural diagram of a maglev train skirt panel installed on a vehicle body, provided by a specific embodiment of the present invention;

[0021] Figure 2 Schematic diagram of the relative positions of the skirt panels when the maglev train passes through a curve;

[0022] Figure 3 for Figure 1 A magnified view of area A;

[0023] Figure 4 for Figure 2 A magnified view of area B in FIG;

[0024] Figure 5 This is a schematic diagram of the inner structure of the maglev train skirt;

[0025] Figure 6 for Figure 5 A magnified view of region C in FIG;

[0026] Figure 7 for Figure 5 A magnified view of region D in FIG.

[0027] Figure 8 This is a schematic diagram of the structure of the buffer rubber strip under the second skirt board.

[0028] The reference numerals are as follows:

[0029] 10 - first skirt member; 110 - first hinge support; 11 - limiting member; 12 - first hinge shaft; 13 - adjusting nut; 14 - limiting portion; 15 - locking member; 20 - second skirt member; 21 - buffer rubber strip; 22 - clamping protrusion; 23 - anti-dropping rod; 24 - clamping groove; 25 - extension portion; 26 - connecting groove; 27 - fastener; 30 - first telescopic member; 40 - second telescopic member; 50 - vehicle body; 51 - skirt mounting seat; 511 - hinge end; 5111 - rotation-stopping washer; 512 - limiting groove; 513 - connecting seat; 514 - bearing seat; 515 - support seat; 5151 - locking hole; 52 - blocking member; 60 - track. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0031] Please refer to Figures 1 to 8 .

[0032] A magnetic levitation train skirt provided by the embodiment of the present application comprises a first skirt member 10, a second skirt member 20, a first telescopic member 30 and a second telescopic member 40. The upper end of the first skirt member 10 is hingedly connected to a vehicle body 50, and the upper end of the second skirt member 20 is hingedly connected to the lower end of the first skirt member 10. As shown in Figure 1 and Figure 2 , both sides of the vehicle body 50 are respectively provided with skirts, which can be opened outward. One end of the first telescopic member 30 is hingedly connected to the vehicle body 50, and the other end is hingedly connected to the first skirt member 10. The first telescopic member 30 is used for controlling the opening and closing of the first skirt member 10. As shown in Figure 1 and Figure 4 , when the first telescopic member 30 is extended, the first skirt member 10 and the second skirt member 20 are in an open state, and the maximum opening angle thereof is as shown in Figure 1As shown, the lower space area a of the first skirt plate member 10 and the second skirt plate member 20 is the largest at this time, and the undercarriage equipment can be conveniently pulled out of the vehicle body 50 or pushed into the vehicle body 50; one end of the second telescopic member 40 is hinged to the first skirt plate member 10, and the other end is hinged to the second skirt plate member 20, and the second telescopic member 40 is used to control the opening and closing of the second skirt plate member 20. Since the second skirt plate member 20 can be opened and closed, it can adapt to the pitch and torsion displacement of the suspension when the maglev train passes through a curve, or the second skirt plate member 20 can be opened outward at a certain angle under the action of a certain negative pressure, so as to increase the air exchange between the inside and outside of the skirt plate, thereby reducing the aerodynamic load borne by the skirt plate, so as to avoid damage to the skirt plate. Since the aerodynamic load borne by the skirt plate is reduced, it is beneficial to the lightweight structure of the skirt plate. For example Figure 2 As shown, the longitudinal center line b of the train is deflected relative to the longitudinal center line c of the track 60, and the second skirt plate member 20 on the left side is rotated outward relative to the first skirt plate member 10 to adapt to the curve passing ability of the train, thereby avoiding damage to the skirt plate.

[0033] In some embodiments, as shown in Figures 5 to 7 As shown, the upper end of the first skirt plate member 10 is provided with a first hinge support 110, as shown in Figure 5 and Figure 6 As shown, the inner side of the upper end of the first skirt plate member 10 is provided with a first hinge support 110, and a first hinge shaft 12 is inserted into the first hinge support 110, and a hinge groove is provided on the first hinge support 110 to divide the first hinge support 110 into two parts. As shown in Figure 7 As shown, the first hinge shaft 12 is also provided with an adjusting nut 13, and the outer side of the adjusting nut 13 is provided with a limiting portion 14, wherein the adjusting nut 13 can move relative to the first hinge shaft 12; the vehicle body 50 is provided with a skirt plate mounting seat 51, and the skirt plate mounting seat 51 is provided with a hinge end 511, and the hinge end 511 is provided with a rotation stopping washer 5111, the hinge end 511 is sleeved on the first hinge shaft 12 and located in the hinge groove, and the adjusting nut 13 is also located in the hinge groove. When the adjusting nut 13 is rotated, the axial position of the hinge end 511 in the hinge groove can be adjusted, and when the rotation stopping washer 5111 is clamped on the limiting portion 14, the relative rotation relationship between the hinge end 511 and the first hinge shaft 12 can be limited, thereby limiting the longitudinal position of the skirt plate relative to the vehicle body 50. The limiting portion 14 is preferably a circular protrusion provided on each side of the adjusting nut 13, and the rotation stopping washer 5111 is provided with a bending plate bent towards the outer side of the adjusting nut 13, and the bending plate is provided with an opening groove capable of being clamped on the limiting portion 14. Through the above connection mode of the skirt plate and the vehicle body 50, the gap adjustment of the adjacent two skirt plates can be realized, thereby ensuring the installation accuracy of the skirt plate.

[0034] In some embodiments, as shown in Figure 1 and Figure 3As shown, a concave limiting groove 512 is provided on the skirt mounting seat 51 near the hinge end 511, and a blocking member 52 is also provided on the vehicle body 50 above the limiting groove 512, for example Figure 3 As shown, a stopper 52 extending obliquely downward is provided on the side of the side beam of the vehicle body 50. A stopper 11 is provided at the upper end of the first skirt panel 10. The first stopper 11 extends into the space formed by the stopper 52 and the stopper groove 512. When the first skirt panel 10 is opened and the stopper 11 contacts the stopper groove 512, it stops rotating to control the maximum open position of the first skirt panel 10. When the first skirt panel 10 is closed and the stopper 11 contacts the stopper 52, it stops rotating to control the closed position of the first skirt panel 10.

[0035] In some embodiments, the first telescopic member 30 is a first gas spring, which is a gas spring with a damping length limit. The upper end of the first gas spring is hinged to the inner side of the first skirt member 10, and the skirt mounting seat 51 is provided with a support seat 515 extending downward. The lower end of the first gas spring is hinged to the support seat 515. Figure 1 As shown, when the first skirt panel 10 is open, the first gas spring is in an extended state, and when the first skirt panel 10 is closed, the first gas spring is in a retracted state. In addition, when the first skirt panel is closed, its inner side is connected to the support seat 515. At this time, the support seat 515 can support the first skirt panel 10, thereby improving the position accuracy of the first skirt panel 10 when closed and its ability to resist external pressure. Figure 5 As shown, the skirt mounting base 51 provided at the bottom of the side beam of the vehicle body 50 includes at least two types, one of which has a support base 515 extending downward, and the other is not designed with a support base 515. For locations that require a larger load, the skirt mounting base 51 with a support base 515 can be provided, and for locations that require a smaller load, the support base 515 can be omitted to reduce space occupation and facilitate maintenance of under-vehicle equipment. Figure 6 As shown, the skirt panel mounting seat 51 includes a connecting seat 513 and a bearing seat 514, wherein the bearing seat 514 preferably has a cross-sectional structure of an "X" shape, and both sides of the bearing seat 514 can be fixed to the side beams of the vehicle body 50 by connecting parts, and the connecting seat 513 can be connected by a top screw member, and a hinged end 511 hinged to the first skirt panel is provided on the connecting seat 513, wherein the height position of the connecting seat 513 relative to the bearing seat 514 can be adjusted by the top screw member, which is conducive to accurately controlling the relative position of the skirt panel and the vehicle body 50, and ensuring the skirt panel arrangement clearance requirements.

[0036] In some embodiments, a locking member 15 is provided on the first skirt member 10, and a locking hole 5151 is provided at the lower end of the support seat 515. Figure 7As shown, the lock hole 5151 is a rectangular hole, the locking member 15 includes a rectangular clamping plate, when the locking member 15 rotates to the first position, it is clamped with the lock hole 5151, at this time, the first apron member 10 is in the locked state; when the locking member 15 rotates to the second position, it is unlocked with the lock hole 5151, at this time, the first apron member 10 is in the unlocked state, and can be rotated outward relative to the vehicle body 50. Through the locking member 15, the problem of accidental opening of the first apron can be avoided, thereby ensuring the safety thereof.

[0037] In some embodiments, the second telescopic member 40 is a second gas spring, and the second gas spring is a gas spring with damping length limit. The inner side of the lower end of the first apron member 10 is provided with a second hinge support extending inward, as shown in Figure 1 and Figure 2 As shown, the upper end of the second gas spring is hinged to the second hinge support, and the lower end of the second gas spring is hinged to the inner side of the second apron member 20 through a second hinge shaft. When the second gas spring is elongated, the second apron member 20 is folded outward relative to the first apron member 10. The upper end of the second apron member 20 can be designed as an arc-shaped groove, and the lower end of the first apron member 10 is located in the arc-shaped groove. The arc-shaped groove can avoid the rotation of the second apron member 20.

[0038] In some embodiments, the width ratio of the first apron member 10 and the second apron member 20 is 9:4, wherein the width of the first apron member 10 and the second apron member 20 refers to the dimension in the vertical direction of the vehicle body 50. Since the second apron member 20 can be opened outward relative to the first apron member 10 during operation, the main structure bearing the aerodynamic load is on the first apron member 10. Compared with the overall apron structure, the aerodynamic load on the surface of the first apron member 10 is reduced, thus being conducive to the lightweight design of the apron structure. It should be noted that the above-mentioned ratio is only preferred, and other ratio can also be selected according to actual needs.

[0039] In some embodiments, the opening angle of the second apron member 20 increases with the increase of the running speed of the maglev train within a predetermined range. Since the greater the running speed of the maglev train, the greater the aerodynamic load on the apron, by increasing the opening angle of the second apron member 20, the air exchange inside and outside the apron is increased, thereby reducing the aerodynamic load on the apron and avoiding damage to the apron.

[0040] In some embodiments, the lower end of the second apron member 20 is provided with a buffer rubber strip 21, the lower end of the second apron member 20 is provided with a clamping groove 24, for example, a T-shaped clamping groove 24 can be provided at the lower end of the second apron member 20, the clamping groove 24 extends along the longitudinal direction of the second apron, the upper end of the buffer rubber strip 21 is provided with a clamping protrusion 22 matched with the clamping groove 24, the clamping protrusion 22 can be a T-shaped clamping protrusion 22 matched with the T-shaped clamping groove 24, a anti-disengagement rod 23 is arranged in the clamping protrusion 22, the anti-disengagement rod 23 is preferably a rigid structure, the anti-disengagement rod 23 can prevent the clamping protrusion 22 from disengaging from the clamping groove 24 due to deformation, the side wall of the clamping groove 24 is connected with a fastener 27, the fastener 27 is preferably a screw, the fastener 27 is used to limit the longitudinal position of the anti-disengagement rod 23 relative to the buffer rubber strip 21, so as to limit the longitudinal position of the buffer rubber strip 21 relative to the second apron member 20. For example, the inner side of the buffer rubber strip 21 is provided with an extension 25, one side of the extension 25 is attached to the inner surface of the lower end of the second apron member 20, the upper side of the extension 25 is provided with a connecting groove 26, when the fastener 27 is connected to the second apron member 20, one end of the fastener 27 inserted into the clamping groove 24 abuts against the anti-disengagement rod 23, and the other end of the fastener 27 is located in the connecting groove 26, so as to limit the position of the extension 25, in addition, by designing the fastener 27, the anti-disengagement rod 23 and the extension 25, the dislocation and excessive deformation of the buffer rubber strip 21 relative to the second apron member 20 can be limited.

[0041] The embodiment of the present application also provides a maglev train, which comprises the apron of any one of the above-mentioned embodiments, and further comprises a train body 50, and the apron is hingedly installed on the side of the train body 50. The beneficial effects of the maglev train can be referred to the apron of any one of the above-mentioned embodiments, and will not be repeated here.

[0042] It should be noted that in the present specification, the relationship terms such as first and second are only used to distinguish one entity from another, and do not necessarily require or imply any such actual relationship or order between the entities.

[0043] The embodiments in the present specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0044] The above has introduced in detail the apron of the maglev train and the maglev train provided by the present application. The principle and implementation manner of the present application are described by applying specific examples in the present paper, and the above embodiment is only used to help understand the core idea of the present application. It should be pointed out that for the ordinary skilled in the art, some improvements and modifications can be made to the present application without departing from the principle of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A maglev train skirt, characterized in that: include: A first skirt panel member (10), a second skirt panel member (20), a first telescopic member (30) and a second telescopic member (40), wherein the upper end of the first skirt panel member (10) is hinged to the vehicle body (50), and the upper end of the second skirt panel member (20) is hinged to the lower end of the first skirt panel member (10); one end of the first telescopic member (30) is hinged to the vehicle body (50), and the other end is hinged to the first skirt panel member (10), and the first telescopic member (30) is used to control the opening and closing of the first skirt panel member (10); one end of the second telescopic member (40) is hinged to the first skirt panel member (10), and the other end is hinged to the second skirt panel member (20), and the second telescopic member (40) is used to control the opening and closing of the second skirt panel member (20).

2. The maglev train skirt according to claim 1, characterized in that: A first hinge support (110) is provided at the upper end of the first skirt member (10), a first hinge shaft (12) is passed through the first hinge support (110), a hinge groove is provided on the first hinge support (110), an adjustment nut (13) is further provided on the first hinge shaft (12), and a limiting portion (14) is provided on the outer side of the adjustment nut (13); a skirt mounting seat (51) is provided on the vehicle body (50), a hinge end (511) is provided on the skirt mounting seat (51), a rotation-stopping washer (5111) is provided on the hinge end (511), the hinge end (511) is sleeved on the first hinge shaft (12) and located in the hinge groove, and the rotation-stopping washer (5111) is used to be clamped to the limiting portion (14) to limit the longitudinal position of the skirt relative to the vehicle body (50).

3. The maglev train skirt according to claim 2, characterized in that: A concave limiting groove (512) is provided on the skirt mounting seat (51) at a position close to the hinged end (511), and a limiting member (11) is provided at the upper end of the first skirt member (10). The first skirt member (10) stops rotating when it opens and the limiting member (11) contacts the limiting groove (512).

4. The maglev train skirt according to claim 2, characterized in that: The first telescopic member (30) is a first gas spring, the upper end of which is hinged to the inner side of the first skirt member (10), the skirt mounting seat (51) is provided with a support seat (515) extending downward, and the lower end of the first gas spring is hinged to the support seat (515).

5. The maglev train skirt according to claim 4, characterized in that: A locking member (15) is provided on the first skirt member (10), and a locking hole (5151) is provided at the lower end of the support seat (515). When the locking member (15) is rotated to a first position, it engages with the locking hole (5151); when the locking member (15) is rotated to a second position, it is unlocked from the locking hole (5151).

6. The maglev train skirt according to claim 1, characterized in that: The second telescopic member (40) is a second gas spring, and a second hinge support extending inward is provided on the inner side of the lower end of the first skirt member (10), the upper end of the second gas spring is hinged to the second hinge support, and the lower end of the second gas spring is hinged to the inner side of the second skirt member (20).

7. The maglev train skirt according to claim 1, characterized in that: The width ratio of the first skirt member (10) to the second skirt member (20) is 9:

4.

8. The maglev train skirt according to claim 1, characterized in that: The opening angle of the second skirt member (20) increases within a preset range as the running speed of the maglev train increases.

9. The maglev train skirt according to any one of claims 1 to 8, characterized in that: A buffer rubber strip (21) is provided at the lower end of the second skirt member (20), a clamping groove (24) is provided at the lower end of the second skirt member (20), a clamping protrusion (22) that cooperates with the clamping groove (24) is provided at the upper end of the buffer rubber strip (21), an anti-slip rod (23) is inserted into the clamping protrusion (22), and a fastener (27) is connected to the side wall of the clamping groove (24), and the fastener (27) is used to limit the longitudinal position of the anti-slip rod (23) relative to the buffer rubber strip (21), so as to limit the longitudinal position of the buffer rubber strip (21) relative to the second skirt member (20).

10. A maglev train, characterized in that: The invention comprises the maglev train skirt panel according to any one of claims 1 to 9, and further comprises a car body (50), wherein the maglev train skirt panel is installed on the side of the car body (50) in an openable and closable manner.

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