WO2018112684A1

WO2018112684A1 - Locomotive structure of railway vehicle

Info

Publication number: WO2018112684A1
Application number: PCT/CN2016/110691
Authority: WO
Inventors: 苏柯; 岳译新; 袁顺; 刘永强; 陈正; 陈希; 柳晓峰; 毛玲玲
Original assignee: 中车株洲电力机车有限公司
Priority date: 2016-12-19
Filing date: 2016-12-19
Publication date: 2018-06-28

Abstract

Disclosed is a locomotive structure of a railway vehicle. The locomotive structure comprises a vehicle body main structure (1), a driver cab frame (2) and an anti-creeper installation structure (4), wherein the anti-creeper installation structure (4) is a double-layer box structure in a t shape, with two side ends respectively fixedly connected to an underframe edge beam (14) and a coupler installation base (11) at a corresponding side; and a driver cab floor (12) covers the anti-creeper installation structure from above. The locomotive structure possesses great longitudinal and vertical strength and stiffness, wherein a single anti-creeper installation area is capable of bearing a longitudinal compression force of 600 kN and a vertical weight of 13t. With a large longitudinal adjustment, the locomotive structure can get infinitely close to a floor surface of a vehicle body, solving the problem of matching with vehicles of existing railways; and dependency on the strength of the underframe edge beam is remarkably reduced, which favours of realizing a streamlined shape.

Description

Rail vehicle head structure

Technical field

The invention relates to a rail vehicle head structure, and belongs to the technical field of rail vehicle body structure.

Background technique

At present, there are two main types of subway vehicle bodies: a structure including riveted (or bolted) structures, such as those described in Chinese Patent Application No. CN200620069988.8 and CN201310072635.8, the main features of which are the cab skeleton or even the undercarriage. The front end is a separate module that is connected to the main structure of the vehicle body by bolts or rivets. The side frame side beams generally do not extend to the driver's cab door area; the other is an all-welded structure, which is mainly used as the main bearing part of the vehicle body. The underframe side rails are long, extending from the passenger compartment area to the front of the cab door area. The front end of the former can be designed as an independent cab skeleton and a fiberglass hood. The head shape varies greatly, but the riveted structure body has heavy weight, poor sealing performance during the whole life cycle, and long-term vibration of the vehicle is easy to cause loose rivets. . The latter all-welded structure basically does not cause the above problems, but the skeleton structure of the driver's cab is also integrated into the main structure of the car body, which is easy to cause limited shape, and it is difficult to meet the demand for pursuing modern atmosphere and reflecting the urban individual style.

At the same time, some cities in China have opened subways for decades, and some routes have reached the transitional stage of replacement. More than 20 years ago, the collision performance of vehicles was not as high as required now. Some vehicles' anti-climbing devices have no energy-absorbing function, and the installation position is also more. Close to the floor of the car body, the height is high. In addition, subway lines in many cities are facing the need for expansion and train purchases, and the heights of train anti-climbing devices made by different vehicle manufacturers are not completely consistent. Therefore, in the new trains on the existing roads, the problem of matching the anti-climbing devices must be solved first, and the anti-climbing device has higher and higher energy requirements, which improves the difficulty of selecting the anti-climbing device and the appearance of the vehicle. The design proposes further restrictions.

At present, the A-type subway car of the all-welded structure in China generally adopts a crush-type anti-climbing device, and its installation structure is similar to the structure described in the invention patent of Chinese Patent Application No. CN201310505736.X, and the anti-climbing installation plate of the structure is directly The side frame side beams are connected, and the anti-climbing device will bear huge longitudinal force and vertical force when working, and good collision resistance is obtained by transmitting the force directly to the underframe side beam. However, this type of anti-climbing device is guided by a cross-shaped guide groove. Due to the strength requirement and structural characteristics, the anti-climbing device is required to have a large size, and a certain distance from the car body floor surface is required, and the anti-climbing device mounting plate is required to be connected. The strength of the underframe side beam is strong enough. These factors have the following problems:

1) The range of height adjustment of the anti-climbing device from the rail surface is limited, which reduces the matching degree with the anti-climbing device of the existing line vehicle, and it is difficult to meet the climbing requirements of the EN 15227 standard;

2) The side frame side beam needs to extend a long distance from the anti-climbing device mounting plate, which causes the arc inflection point of the hood to move forward. The length and shape of the arc segment of the hood are limited, which is extremely unfavorable for the design and easy to cause The appearance of the model lacks a sense of change.

Summary of the invention

The invention aims to provide a rail vehicle front structure, the T-shaped double-layer box structure of the anti-climbing device installation structure has good longitudinal and vertical strength and rigidity, and the single anti-climbing device installation area can satisfy the longitudinal compression of 600 kN. The force and the vertical weight of 13t greatly reduce the dependence on the strength of the front end of the frame side beam and solve the problem of matching with the existing line vehicles.

In order to achieve the above object, the technical solution adopted by the present invention is:

A rail vehicle front structure includes a main body structure, a cab skeleton and an anti-climbing device mounting structure; and the structural feature is that the anti-climbing device mounting structure is composed of two upper and lower box-shaped structures and is generally T-shaped, The two ends of the anti-climbing device mounting structure are respectively fixed to the chassis side beam and the coupler mounting seat of the corresponding side Connected, the anti-climbing device mounting structure is covered with a driver's cab floor.

The upper and lower two-layer box-type structure and the overall T-shape means that the anti-climbing device installation structure comprises a longitudinally arranged box structure and a laterally arranged box structure, and the laterally arranged box structure spans the longitudinally arranged box body. The structure is such that, viewed from a top view, the overall shape is T-shaped.

Thereby, the anti-climbing device mounting structure forms a T-shaped double-layer box structure, and the anti-climbing device mounting structure is connected with the underframe side beam and the coupler mounting seat, and constitutes an installation structure of the anti-climbing device, and at the same time weakens the chassis side The front end structure of the beam provides conditions for realizing the large arc shape of the hood.

The invention has good longitudinal and vertical strength and rigidity, and the single anti-climbing device installation area can withstand the longitudinal compression force of 600kN and the vertical weight of 13t, and the longitudinal direction adjustment amount is large, and can be infinitely close to the floor surface of the vehicle body, and the solution is solved. Matching problems with existing line vehicles. Significantly reduce the dependence on the front end of the frame side beam, which is conducive to streamlined shape.

According to an embodiment of the present invention, the present invention can be further optimized, and the following is a technical solution formed after optimization:

Preferably, the front end of the anti-climbing device mounting structure is used for installing an anti-climbing device, and the rear end of the anti-climbing device mounting structure is fixedly connected with the traction beam wing; preferably, the traction beam wing plate is disposed in the cab floor and the passenger compartment a joint of the floor; preferably, the anti-climbing device comprises a mounting flange, an energy absorbing element, an energy absorbing element mounting box and a ripstop element; more preferably the anti-climbing device is a drawer type aluminum honeycomb type anti-climbing device.

Preferably, the anti-climbing device mounting structure comprises an anti-climbing device mounting plate, an anti-climbing device strut and an anti-climbing device connecting seat; the two ends of the anti-climbing device mounting plate and the anti-climbing device connecting seat are respectively fixed on the respective sides On the underframe side beam and the coupler mount, the anti-climbing strut is fixedly connected between the traction beam wing and the anti-climbing connector; preferably the anti-climbing strut and the anti-climbing connector Preferably, the process hole is opened; preferably, the anti-climbing device mounting plate is provided with a U-shaped opening with an opening upward, the anti-climbing strut is a U-shaped structure, and the anti-climbing strut is formed between the anti-climbing strut and the cab floor The energy absorbing element mounting box is disposed in the cavity, and the suction The energy component mounting box is provided with an energy absorbing element; more preferably, the energy absorbing element is a crush energy absorbing element, more preferably an aluminum honeycomb or aluminum foam.

Preferably, the anti-climbing strut is surrounded by a cab structure of a cab floor, and the box structure replaces the energy absorbing component mounting box for mounting a separate energy absorbing element.

Preferably, the anti-climbing device is fixed on the anti-climbing device mounting plate by mounting flanges on both sides; preferably, the anti-climbing device has no convex flange edges in the up and down direction, and the anti-climbing element and the energy absorbing element respectively Located at the front and rear of the mounting flange, the energy absorbing component mounting box is fastened to the mounting flange.

Preferably, the sides of the energy absorbing element mounting box are provided with anti-climbing struts, and a transition plate is arranged behind the traction beam slats.

Preferably, the driver's cab floor is provided with a column gusset, and the pillar gusset is respectively aligned with the driver's middle column and the anti-climbing connector; preferably the body main structure, the cab skeleton, the column gusset and The anti-climbing device mounting structure is an integrally formed structure; more preferably, the car body main structure, the cab skeleton, the column gusset and the anti-climbing device mounting structure are welded to form an integrated structure.

Preferably, one end of the anti-climbing device mounting plate is aligned with a rear edge of the pillar gusset, and the other end of the anti-climbing device mounting plate is connected with the underframe side beam, the foremost edge of the underframe side beam and the anti-climbing device The distance d1 of the mounting plate is at least 30 mm; preferably, the outer side of the front end of the underframe side beam is formed with a circular arc notch, and the side beam sealing plate having the same arc radius is disposed at the arc notch; more preferably, the arc The arc starting point y of the notch is adjusted in the area of the anti-climbing connector.

Preferably, the distance d2 between the front end of the driver's cab floor and the anti-climbing device mounting plate does not exceed 230 mm.

Preferably, there is a gap between the upper edge of the anti-climbing device and the floor of the cab, preferably the gap h is 5 mm or more.

Preferably, the anti-climbing device connecting seat is generally L-shaped, and the anti-climbing device connecting seat is in front of the support The anti-climbing device is fixedly connected with the upper driver's cab floor to form a horizontal box-type structure, and the anti-climbing strut is connected with the traction beam wing plate and the anti-climbing device mounting plate, and forms a longitudinal box structure with the cab floor. At the rear of the anti-climbing mounting plate, the lateral box-shaped structure spans the longitudinal box-shaped structure to form the T-shaped double-layer box-type structure; preferably, the anti-climbing device mounting plate has a thickness of 20 mm or more.

The main structure of the vehicle body mainly comprises a top cover, a side wall, a bottom frame and an end wall of the passenger compartment area, the bottom frame extends from the passenger compartment area to the cab area, and the driver's seat seat and the driver's cab floor are arranged in the driver's cab area. , the driver's cab front floor, the underframe side beam, the transition board, the traction beam wing board, the passenger room floor and the side beam sealing board; wherein the coupler mounting seat is located at the center of the front end of the vehicle body, and the driver's seat floor and the driver's cab are covered above the coupler seat The front floor and the guest room floor, the two sides of the coupler mount are connected to the side frame side beam by the traction beam wing.

Preferably, the cab skeleton is fixed above the chassis of the cab area of the main structure of the vehicle body; the cab skeleton includes a cab center pillar, a driver cab front door pillar, an overall upper door corner, and a cab door upper beam; a column gusset is arranged below the middle column of the driver's cab, and a lower end of the middle column of the driver's cab is aligned with the gusset of the column, and the upper part of the middle column of the driver's cab is connected with the main structure of the vehicle body; the front door pillar of the driver's cab and the overall door corner And the driver room door upper beam constitutes a door frame skeleton structure of the driver's cab door; the lower end of the driver's cab door is connected with the underframe side beam, and the upper end of the driver's cab door is connected with the main body structure; preferably at the upper end of the driver's cab door The two corner joints of the main structure of the vehicle body are provided with a circular arc radius and an overall upper door angle close to the hollow door angle.

Preferably, a hood is fixed on the underframe side beam of the front end of the main structure of the vehicle body and the driver's cab floor, and the hood is fixedly connected with the front door pillar of the driver's cab, the upper door corner and the upper beam of the driver's cab.

Preferably, a shroud is fixed on the underframe side beam of the front end of the main structure of the vehicle body and the floor of the driver's cab, and the contour line of the upper part of the shroud is consistent with the contour of the lower part of the hood; preferably the side beam sealing board The arc radius setting is the same as the lower contour of the hood.

Preferably, the cab skeleton further includes a door frame baffle extending from the base material of the upper door corner; preferably, the inner side of the upper door corner is provided with a concave cavity; more preferably, the straight line segment of the two ends of the whole upper door corner is provided There is a connecting joint, and the outer contour shape and the thickness of the connecting joint are respectively consistent with the cross section of the front door pillar of the cab and the upper beam of the cab door.

With the above structure, the main contents of the present invention include;

1. The installation structure of the anti-climbing device is set to T-shaped double-layer box structure, and the two sides are respectively connected with the side frame side beam and the coupler mounting seat, the upper part is covered with the cab floor, the rear part is connected with the traction beam wing board and the transition is correspondingly set. The plate has good strength against longitudinal and vertical forces;

2. The anti-climbing device mounting plate has a large U-shaped hole for installing a penetrating anti-climbing device, and is particularly suitable for an anti-climbing device with an energy-absorbing element disposed behind the mounting plate, such as a drawer type aluminum honeycomb anti-climbing device. ;

3. Using the strength of the anti-climbing device to install the structure itself, shortening the front end of the side frame side beam, and setting the arc sealing plate structure, which is beneficial to the design of the large arc shape of the hood and the shroud;

4. Optimize the upper door corner of the driver's cab as the overall door angle structure, reduce the position of the upper arc cut point of the hood, and make the shape more streamlined; the overall door angle structure has its own arc shape, the weld avoids the high stress area, and the belt There is a cavity structure for the door door drive mechanism and the installation of the brush.

5. The invention utilizes the anti-climbing device installation structure to reduce the strength dependence of the underframe side beam, weakens the underframe side beam of the front end and moves the inflection point of the arc shape backward, and designs the upper corner of the cab to be a self-contained arc. The overall door angle structure of the shape reduces the position of the upper arc tangent point, which greatly improves the design flexibility of the hood surface shape. In addition, the anti-climbing device installation structure, the cab skeleton structure and the main structure of the vehicle body are connected by a column gusset structure under the floor to form an overall load-bearing structure, and the strength of the vehicle body satisfies the requirements of EN12663 standard and EN15227 standard.

Compared with the prior art, the beneficial effects of the present invention are:

The anti-climbing device installation structure of the invention significantly improves the adjustment range of the anti-climbing device height direction, and solves It is compatible with the anti-climbing device of the existing line. Its T-shaped double-layer box structure has good longitudinal and vertical strength and rigidity. The single anti-climbing device installation area can meet the longitudinal compression force of 600kN and the vertical displacement of 13t. To the weight; greatly reduce the dependence on the front end strength of the underframe side beam, which is very conducive to the hood shape design; the invention body product has good strength performance, simple structure, good craftability and strong versatility; the vehicle using the invention Beautiful appearance and strong plasticity, it is especially suitable for rail vehicles with varied and modern shapes.

The body strength of the rail car body of the invention can meet the requirements of EN12663 standard and EN15227 standard

DRAWINGS

Figure 1 is a schematic structural view of an embodiment of the present invention;

Figure 2 is a front elevational view of the vehicle body structure of the present invention;

Figure 3 is a cross-sectional view taken along line A-A of Figure 2 of the present invention;

Figure 4 is a cross-sectional view taken along line B-B of Figure 3 of the present invention;

Figure 5 is a cross-sectional view taken along line C-C of Figure 3 of the present invention;

Figure 6 is a schematic view of the upper door corner of the cab of the present invention;

Figure 7 is a schematic view showing the installation of the hood of the hood of the present invention;

Figure 8 is a partial schematic view of another embodiment of the present invention.

In the picture

1-Car body main structure; 11-bar mounting seat; 12-driver floor; 13-driver front floor; 14-underframe side beam; 14a-arc notch; 15-transition plate; 16-traction beam wing ; 17 - passenger room floor; 18 - side beam sealing plate; 2 - driver room skeleton; 21 - driver room middle column; 22 - driver room front door column; 23 - overall upper door corner; 23a - door corner outer arc; 23b - door frame Baffle; 23c-door corner arc; 23d-concave cavity (; 23e-connection joint; 24--driver door upper beam; 3-column gusset; 4-anti-climbing installation structure; 41-anti-climb Mounting plate; 41a-U-shaped hole; 42-anti-climbing struts; 43-anti-climbing connector; 5--door angle; 6-anti-climbing device; 61-mounting flange; 62-energy absorbing element; - Energy absorbing element mounting box; 64 - anti-climbing element; 7 - hood; 8 - shroud.

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present invention and the features in the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left", and "right" appear below, and only indicate the same as the upper, lower, left, and right directions of the drawing itself, and do not limit the structure.

A rail vehicle front, as shown in FIG. 1, is mainly connected by a main body structure 1, a cab skeleton 2, a pillar gusset 3, and an anti-climbing mounting structure 4 by welding. The main structure 1 of the vehicle body mainly comprises basic members such as a top cover, a side wall, a bottom frame and an end wall of the passenger compartment area. The chassis of the present invention extends to the cab area, and a coupler mount 11 is provided in the area, and the driver's cab floor is provided. 12, the driver's cab front floor 13, the underframe side beam 14, the transition plate 15, the traction beam wing 16, the passenger room floor 17, the side beam sealing plate 18, etc., wherein the coupler mount 11 is located at the center of the front end of the vehicle body, covered by The driver's cab floor 12, the cab front floor 13 and the passenger compartment floor 17 are provided with traction beam flaps 16 connected to the underframe side rails 14 on both sides, and a transition plate 15 is provided at the joint to strengthen the longitudinal compression of the traction beam flaps 16 The strength, the outer side of the front end of the underframe side beam 14 is formed into a circular arc shape, and the periphery of the notch is welded and sealed to the side beam sealing plate 18.

The cab skeleton 2 is welded above the chassis of the driver's cab area of the main structure 1 of the vehicle body, and the pillar gusset 3 is disposed below the center pillar 21 of the cab, and is integrally connected with the coupler mount 11, and has a good vertical direction. Strength of. The anti-climbing device mounting structure 4 is located on both sides of the front end of the vehicle body, and is composed of an anti-climbing device mounting plate 41, an anti-climbing strut 42 and an anti-climbing device connecting seat 43, wherein the anti-climbing device mounting plate 41 and the anti-climbing device connecting seat 43 Connected to the coupler mount 11 and the underframe side beam 14, respectively, the anti-climbing strut 42 is directly abutted to the rear of the traction beam flap 16. A large U-shaped hole is provided at the joint of the climber mounting plate 41 and the cab floor 12 for installing a penetrating anti-climbing device, and the height of the anti-climbing device can be infinitely close to the floor surface. The anti-climbing strut 42 and the anti-climbing connector 43 are provided with process holes to provide space for the anti-climbing device to be installed.

Figure 2 is a front elevational view of the vehicle body structure. The cab skeleton 2 is mainly composed of a driver's cab middle pillar 21, a cab front door pillar 22, an overall upper door corner 23, a driver's cab door upper beam 24 and the like. The middle pillar 21 of the driver's cab is aligned with the pillar gusset 3, and the upper part is connected with the main structure 1 of the vehicle body; the front door pillar 22 of the machine room, the upper door corner 23, and the upper beam 24 of the driver's cab constitute the skeleton structure of the door frame of the driver's cab, below It is connected with the underframe side beam 14 and is connected to the main structure 1 of the vehicle body at the upper part, and is provided with a circular arc radius and an overall upper door angle 23 close to the hollow door angle 5 at the two right-angled joints, effectively reducing the stress at the corner of the door. Concentration, while the appearance looks more coordinated. Anti-climbing device 6

Figure 3 is a cross-sectional view taken along line A-A of Figure 2; The anti-climbing mounting structure 4 can be used to mount the anti-climbing device 6, which includes a mounting flange 61, an energy absorbing element 62, an energy absorbing element mounting box 63 and an anti-climbing element 64. The mounting flange 61 is located on both sides of the anti-climbing device 6 and is fixed on the anti-climbing device mounting plate 41 of the anti-climbing device mounting structure 4 by bolts. The anti-climbing device 6 has no convex flange edge in the up and down direction, and the height can be Infinitely close to the driver's cab floor 12. The anti-climbing element 64 and the energy absorbing element 62 are respectively located at the front and rear of the mounting flange 61, so as to prevent the front end of the anti-climbing device 6 from being too long from the mounting flange 61, and the plane of the anti-climbing device mounting plate 41 is slightly uneven or different. Under the condition of the deflection of the vehicle body under load, the front end of the anti-climbing device 6 is obviously upturned or sagging. The energy absorbing element 62 is placed in the energy absorbing element mounting box 63, and the energy absorbing element mounting box 63 is fastened to the mounting flange 61, and is relatively fixed when subjected to the compressive force generated by the action of the energy absorbing element 62, when the anti-climbing element 64 When subjected to an impact force, the energy absorbing element 62 is directly compressed to stably absorb energy and relieve sudden impact force.

On both sides of the energy absorbing element mounting box 63, an anti-climbing strut 42 is provided against the longitudinal impact force, and behind the traction beam flap 16, the transition plate 15 is aligned to provide better longitudinal strength. One side of the anti-climbing mounting plate 41 is welded to the coupler mount 11 and aligned with the rear edge of the pillar gusset 3 in the lateral direction Has good strength. The other side of the anti-climbing device mounting plate 41 is connected to the underframe side beam 14, and the distance d1 between the foremost end point of the underframe side beam 14 and the anti-climbing device mounting plate 41 is at least 30 mm, which can provide sufficient for the arc shape. Space, the outer side of the front end of the underframe side beam 14 is machined with a circular arc notch 14a, and the same arc radius side beam sealing plate 18 is welded at the notch to seal and maintain a certain strength, the arc starting point y of the arc notch 14a It can be adjusted in the area of the anti-climbing connector 43.

In order to improve the flatness of the contact surface of the anti-climbing device mounting plate 41 and the mounting flange 61, the distance d2 between the front end of the driver's cab floor 12 and the anti-climbing device mounting plate covering the anti-climbing device mounting structure 4 should be within 230 mm, so that The overall milling process after welding is carried out, and the front floor 13 of the driver's cab is welded after the machining to maintain the overall arc shape.

Figure 4 is a cross-sectional view taken along line B-B of Figure 3; The gap h between the upper edge of the anti-climbing device 6 and the driver's cab floor 12 can be close to zero, and it is preferable to reserve a gap of 5 mm or more in consideration of installation and maintainability. The anti-climbing connector 43 is L-shaped, and the anti-climbing device mounting plate 41 supporting the front is welded to the upper anti-climbing strut 42 at the same time to form a T-shaped double-layer box structure, which is excellent in both the longitudinal and lateral directions. The stiffness and strength can transmit large longitudinal and vertical forces. The front and rear of the traction beam flap 16 are respectively a cab floor 12 and a passenger compartment floor 17 of a hollow profile. The transition panel 15 is welded between the traction beam flap 16 and the passenger compartment floor 17, and the front cab floor 12 and the anti-climbing device can be The longitudinal force portion of the gusset 42 transitions to the passenger compartment floor 17 of the hollow profile to avoid structural instability caused by sudden changes in stiffness while providing strong support to the front structure.

In addition, the optional flat anti-climbing device can eliminate the flange edge of the connecting seat in the up and down direction, further close the distance between the anti-climbing device and the floor surface of the vehicle body, and improve the matching degree between the anti-climbing device and the existing line vehicle.

Figure 5 is a cross-sectional view taken along line C-C of Figure 3; The anti-climbing device mounting plate 41 and the anti-climbing device connecting seat 43 are respectively connected with the coupler mounting seat 11 and the underframe side beam 14, and the anti-climbing connecting seat 43 has a U-shaped anti-climbing strut 42 for preventing creeping. The absorbing plate 42 and the driver chamber floor 12 are inserted into the absorbing element mounting box 63 with the energy absorbing element 62. The energy absorbing element 62 can be an aluminum honeycomb, aluminum foam or the like which can be crushed and energy absorbing. . Standing The gussets 3 are located below the driver's cab floor 12 and are respectively aligned with the cab center pillar 21 and the anti-climbing connector 43, and form an overall load-bearing structure at the front end of the vehicle head.

Figure 6 is a schematic view of the upper door corner of the cab. The overall upper door corner 23 is formed by forging or by machining the extruded profile to ensure sufficient strength throughout the interior. The radius of the outer corner arc 23a of the door corner located outside the upper upper door corner 23 can be adjusted according to the shape of the head cover; the door frame baffle 23b is used for the stop of the driver's cab door, and directly extends from the base material of the upper upper door corner 23; The inner arc 23c is similar to the radius of the hollow door corner 5, and is also directly processed by the base material of the upper door corner 23; the inner upper door corner 23 is provided with a concave cavity 23d for providing the installation space of the driver's cab door mechanism. At the same time, the mounting surface of the brush is provided, and the root structure of the brush is blocked by the lower wall of the concave cavity, and the appearance is good; the straight section of the two ends of the door corner 23 is provided with the connection joint 23e, and the outer contour shape of the joint And the thickness of the plate is consistent with the cross section of the front door pillar 22 of the driver's cab and the cross member 24 of the driver's cab, and the welding process is good. The overall door corner 23 stiffness is abruptly cut from the substrate, maintaining an appropriate distance from the weld joint to avoid weld seams in the high stress area of the door corner and reducing its allowable strength.

Figure 7 is a schematic view showing the installation of the hood shroud. The head cover 7 is fixed to the underframe side beam 14 at the front end of the main body structure 1 and the driver's cab floor 12, and is connected to the driver's cab front door pillar 22, the entire upper door corner 23 and the driver's cab door upper cross member 24. The shroud 8 is located below the underframe side beam 14 and the driver's cab floor 12 and is butted at the plane of the 14 x point of the underframe side beam. The contour line above the shroud 8 is consistent with the contour line below the hood 7, and is moved back by the x point and the y point, and the arc radius of the side beam sealing plate 18 is set to be consistent with the contour line below the hood, thereby realizing the front of the hood. The large arc curve R1 on the side is set by the outer corner arc 23a of the door angle 23 of the whole upper door corner 23, which can reduce the height of the arc point of the upper part of the head cover by z, and realize the smooth transition of the modeling curve R2, which is more streamlined.

For the structure of the anti-climbing device 6 of the present invention, it can also be partially integrated with the anti-climbing device mounting structure 4, and the anti-climbing device can be moved for a larger stroke to absorb more energy, and the structure is simpler. The specific scheme is shown in Figure 8. The box structure enclosed by the anti-climbing strut 42 and the cab floor 12 in the anti-climbing device mounting structure 4 directly replaces the energy absorbing element mounting box 63 for mounting the independent energy absorbing element 62 in the anti-climbing support A transition plate 15 connection is still provided between the traction beam flap 16 behind the panel 42 and the passenger compartment floor 17.

The above-described embodiments are to be understood as being illustrative only and are not intended to limit the scope of the present invention. Modifications are intended to fall within the scope defined by the appended claims.

Claims

A rail vehicle head structure comprises a main body structure (1), a cab skeleton (2) and an anti-climbing device mounting structure (4); wherein the anti-climbing device mounting structure (4) consists of two layers The box-shaped structure is integrally formed in a T-shape, and the two ends of the anti-climbing device mounting structure (4) are respectively fixedly connected with the chassis side beam (14) and the coupler mounting seat (11) of the corresponding side, and the anti-climbing device is installed. The top of the structure (4) is covered with a driver's cab floor (12).
The rail vehicle head structure according to claim 1, characterized in that the front end of the anti-climbing device mounting structure (4) is used for mounting an anti-climbing device (6), and the rear end of the anti-climbing device mounting structure (4) Attached to the traction beam wing (16); preferably the traction beam wing (16) is disposed at a junction of the driver's cab floor (12) and the passenger compartment floor (17); preferably the anti-climbing device (6) includes installation Flange (61), energy absorbing element (62), energy absorbing element mounting box (63) and anti-climbing element (64); more preferably, the anti-climbing device (6) is a drawer type aluminum honeycomb type anti-climbing device.
The rail vehicle head structure according to claim 2, wherein the anti-climbing device mounting structure (4) comprises an anti-climbing device mounting plate (41), an anti-climbing strut plate (42) and an anti-climbing device connecting seat (43); two ends of the anti-climbing device mounting plate (41) and the anti-climbing device connecting seat (43) are respectively fixed on the corresponding side frame side beam (14) and the coupler mounting seat (11), An anti-climbing strut (42) is fixedly coupled between the traction beam wing (16) and the anti-climbing connector (43); preferably the anti-climbing strut (42) and the anti-climbing connector ( 43) a process hole is opened; preferably, the anti-climbing device mounting plate (41) is provided with a U-shaped hole (41a) having an opening upward, and the anti-climbing strut (42) is a U-shaped structure, and the anti-climbing device (42) is a U-shaped structure The energy absorbing component mounting box (63) is disposed in the cavity formed between the creeper gusset (42) and the cab floor (12), and the energy absorbing component mounting box (63) is provided with an energy absorbing component (62); More preferably, the energy absorbing element (62) is a crush energy absorbing element, more preferably an aluminum honeycomb or aluminum foam.
A rail vehicle head structure according to claim 3, wherein said anti-climbing strut (42) A cabinet structure enclosing a driver's cab floor (12), the cabinet structure replacing the energy absorbing component mounting box (63) for mounting a separate energy absorbing element (62).
A rail vehicle head structure according to claim 2, wherein said anti-climbing device (6) is fixed to the anti-climbing device mounting plate (41) by mounting flanges (61) on both sides; preferably said The anti-climbing device (6) has no convex flange edges in the up and down direction, and the anti-climbing element (64) and the energy absorbing element (62) are respectively located at the front and rear of the mounting flange (61), and the energy absorbing element mounting box ( 63) Fastened to the mounting flange (61).
The rail vehicle head structure according to claim 2, characterized in that both sides of the energy absorbing element mounting box (63) are provided with anti-climbing struts (42) aligned behind the traction beam flaps (16) A transition plate (15) is provided.
The rail vehicle head structure according to claim 2, characterized in that the driver's cab floor (12) is provided with a column gusset (3), and the pillar gusset (3) and the driver's cab intermediate column (21) respectively And the anti-climbing device connecting seat (43) is aligned and connected; preferably, the main body structure (1), the cab skeleton (2), the column gusset (3) and the anti-climbing device mounting structure (4) are integrally formed structures. More preferably, the vehicle body main structure (1), the cab skeleton (2), the column gusset (3) and the anti-climbing device mounting structure (4) are welded to form an integrated structure.
The rail vehicle head structure according to claim 7, wherein one end of the anti-climbing mounting plate (41) is disposed in alignment with a rear edge of the pillar gusset (3), and the anti-climbing device mounting plate (41) The other end is connected to the underframe side beam (14), and the distance d1 between the foremost end point of the underframe side beam (14) and the anti-climbing device mounting plate (41) is at least 30 mm; preferably the underframe side beam (14) An arc notch (14a) is formed on the outer side of the front end, and a side beam sealing plate (18) having the same arc radius is disposed at the arc notch (14a); more preferably, the arc of the arc notch (14a) The starting point y is adjusted in the area of the anti-climbing connector (43).
The rail vehicle head structure according to claim 3, characterized in that the distance d2 between the foremost end of the cab floor (12) and the anti-climbing mounting plate (41) does not exceed 230 mm.
A rail vehicle head structure according to claim 2, characterized in that there is a gap between the upper edge of the anti-climbing device (6) and the driver's cab floor (12), preferably the gap h is 5 mm or more.
The rail vehicle head structure according to claim 3, wherein the anti-climbing attachment seat (43) is integrally L-shaped, and the anti-climbing attachment seat (43) is supported in front of the anti-climbing device mounting plate ( 41) at the same time fixedly connected with the upper driver's cab floor (12) to form a transverse box structure, the anti-climbing strut (42) is connected to the traction beam wing (16) and the anti-climbing device mounting plate (41), and The cab floor (12) forms a longitudinal box-like structure; behind the anti-climbing mounting plate (41), the transverse box-shaped structure spans the longitudinal box-shaped structure to form the T-shaped double-layer box-type structure; Preferably, the anti-climbing device mounting plate (41) has a thickness of 20 mm or more.
The rail vehicle head structure according to any one of claims 1 to 11, characterized in that the vehicle body main structure (1) mainly comprises a top cover, a side wall, a bottom frame and an end wall of the passenger compartment area, the chassis It extends from the passenger compartment area to the driver's cab area, and is provided with a coupler mount (11), a driver's cab floor (12), a driver's cab front floor (13), a underframe side rail (14), and a transition board (15). ), traction beam wing (16), passenger compartment floor (17) and side beam sealing plate (18); wherein the coupler mount (11) is located at the center of the front end of the vehicle body, and the driver's seat floor is covered above the coupler mount (11) (12), the front floor of the driver's cab (13) and the floor of the passenger compartment (17), and the two sides of the coupler mount (11) are connected to the side frame rail (14) by the traction beam wing (16).
A rail vehicle head structure according to any one of claims 1-11, characterized in that the cab skeleton (2) is fixed above the chassis of the cab area of the main body structure (1); the cab The skeleton (2) includes a cab vertical column (21), a cab front door pillar (22), and overall a door corner (23) and a driver room door upper beam (24); a lower column gusset (3) is disposed below the driver's middle column (21), and a lower end of the driver's middle column (21) and a column gusset ( 3) Alignment, the upper part of the driver's cab middle column (21) is connected with the main body structure (1); the cab front door pillar (22), the overall upper door corner (23) and the cab door upper beam (24) a door frame skeleton structure of the driver's cab door; the lower end of the driver's cab door is connected to the underframe side beam (14), and the upper end of the driver's cab door is connected with the main body structure (1); preferably at the upper end of the driver's cab door The two right-angled joints of the main body structure (1) are provided with a circular arc radius and an overall upper door angle (23) close to the hollow door angle (5).
The rail vehicle head structure according to claim 13, characterized in that a hood (7) is fixed above the chassis side rail (14) of the front end of the main body structure (1) and the cab floor (12). The hood (7) is fixedly connected to the cab front door pillar (22), the overall upper door corner (23) and the cab door upper beam (24).
The rail vehicle head structure according to claim 14, wherein a shroud (8) is fixed above the chassis side rail (14) of the front end of the main body structure (1) and the driver's cab floor (12). The contour of the upper portion of the shroud (8) coincides with the contour of the lower portion of the head cover (7); preferably, the arc radius of the side beam sealing plate (18) is set to coincide with the lower contour of the head cover.
A rail vehicle head structure according to claim 13, wherein said cab skeleton (2) further comprises a door frame shutter (23b) extending from a base material of the upper door corner (23); preferably said entirety A concave cavity (23d) is disposed on the inner side of the upper door corner (23); more preferably, a straight section of both ends of the upper upper door corner (23) is provided with a connection joint (23e), and the outer contour shape and the plate of the connection joint (23e) The thickness dimensions are consistent with the cross section of the driver's cab front door post (22) and the driver's cab door cross member (24).