WO2022001387A1 - Internal combustion locomotive cab having multistage collision protection function - Google Patents

Abstract

An internal combustion locomotive cab having a multistage collision protection function, the internal combustion locomotive cab comprising a cab upper top cover (1), a cab lower fence (2), a vehicle body underframe (3) and a cab rear end wall (4), wherein the cab lower fence (2) is composed of a front end wall (5), a side wall (6) and a rear end wall (7), a buffer and energy absorption device I (8) is arranged at the front end of the vehicle body underframe (3), and a buffer and energy absorption device II (9) is arranged at the front end of the front end wall (5). The buffer and energy absorption devices are arranged at the front end of the vehicle body underframe and the lower portion of the front end of the cab, and the structure of the lower portion of the cab is designed as an integral frame structure, thereby constructing multistage safety protection measures for the internal combustion locomotive cab. The buffer and energy absorption devices are arranged at the front end of the vehicle body underframe and the lower portion of the front end of the cab in a relatively independent rectangular array manner, thereby giving full play to the protection effect of the buffer and energy absorption devices on the structure of the cab in a collision process, and fully utilizing locomotive space.

Description

A diesel locomotive cab with multi-level collision protection technical field

The invention relates to the technical field of diesel locomotives, in particular to a diesel locomotive driver's cab with multi-level collision protection.

Background technique

With the overall acceleration of rail transit, the passive safety of rail vehicles has received extensive attention from relevant institutions at home and abroad, and a series of technical specifications for passive safety of rail vehicles have been formulated. However, these technical specifications are widely used in the R&D and design of vehicles such as subways, trams, electric locomotives and high-speed EMUs, and are rarely used in the R&D and design of diesel locomotives. In the previous design process of diesel locomotives, due to factors such as limited design space and technical conditions, the protection measures for the cab structure in the process of locomotive collision were not fully considered, and only a small number of anti-collision columns were often set at the front end of the cab. In the process of locomotive collision, these anti-collision columns are not enough to resist the impact force of the collision, and cannot effectively protect the structure of the cab of the diesel locomotive and the occupants.

technical problem

In order to overcome the insufficiency of the existing locomotive cab structure to resist the impact force of the collision and protect the occupants during the collision process, the present invention provides a diesel locomotive cab with multi-level collision protection. A method of setting a buffer energy-absorbing device at the end and the lower part of the front end of the cab and designing the lower structure of the cab into an integral frame structure. Arrange.

technical solutions

The technical solution adopted by the present invention to solve the technical problem is as follows: a diesel locomotive cab with multi-level collision protection, which includes an upper cover of the cab, a lower enclosure of the cab, a bottom frame of the cab and a rear end wall of the cab, It is characterized in that the lower enclosure of the driver's cab is composed of a front end wall, a side wall and a rear end wall. Buffer energy absorption device II.

Further, the lower enclosure of the driver's cab is fixed on the underframe of the vehicle body, and is connected with the underframe of the vehicle body by welding.

Further, the front end of the front end wall includes at least six buffer energy absorbing devices two arranged in a rectangular array.

Further, it includes a buffer energy-absorbing device 1 consisting of a locking plate 1, a cover plate 1, a guide column, a crushing deformation body 1, a support plate 1 and a bottom plate 1.

Further, one of the locking plates is a zigzag plate, and at least two locking plates are welded and fixed to a front end surface of the cover plate, and one of the crushing deformation bodies is made of an aluminum round tube, and is crushed and deformed. The body 1 is arranged in an array between the cover plate 1 and the bottom plate 1, the outer surface layer of the crushing deformation body 1 is evenly provided with crushing deformation inducing grooves, and the crushing deformation body 1 is outside and located between the cover plate 1 and the bottom plate 1. A support plate is fixed between the first, the guide column passes through the bottom plate and the top end is fixed on the rear end surface of the cover plate.

Further, the second buffer energy absorption device is composed of the second locking plate, the second cover plate, the second crushing deformation body, the second supporting plate and the second bottom plate.

Further, it includes that the second locking plate is in the shape of a zigzag plate, and is welded and fixed to the front end surface of the second cover plate by at least two locking plates. The two deformation bodies are arranged in an array between the second cover plate and the second bottom plate, and the second supporting plate is fixed on the outer side of the second crushing deformation body and located between the second cover plate and the second bottom plate.

Further, at least three buffer energy absorbing devices are arranged along the transverse direction of the locomotive at the front end of the chassis of the vehicle body.

beneficial effect

The beneficial effect of the present invention is that a diesel locomotive driver's cab with multi-level collision protection of the present invention is provided by arranging a buffer energy-absorbing device at the end of the chassis of the vehicle body and the lower part of the front end of the driver's cab, and designing the lower structure of the driver's cab as a whole The method of frame-shaped structure builds multi-level safety protection measures for the cab of the diesel locomotive; in order to give full play to the protection effect of the buffer energy-absorbing device on the cab structure during the collision process and make full use of the locomotive space, the buffer energy-absorbing device is located at the end of the chassis of the vehicle body. The upper part and the lower part of the front end of the driver's cab are arranged in a relatively independent rectangular array; in order to make the buffer energy-absorbing device crush and deform along the longitudinal direction, a locking plate, a guide column and a quadrangular prism square honeycomb structure are arranged in the buffer energy-absorbing device. ;By setting the buffer energy-absorbing device at the end of the locomotive chassis and the lower part of the front end of the cab and designing the lower structure of the cab into a frame-shaped enclosure structure, multi-level safety protection measures are constructed for the cab, and safety protection measures during the collision process. Open in sequence, effectively protect the overall structure of the driver's cab and the passengers, thereby improving the passive safety of the diesel locomotive. The modular structure and flexible arrangement of the buffer energy-absorbing device can be used in the passive safety design of the diesel locomotive driver's cab. The locomotive space structure is flexible to design the safety protection structure of the cab.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Figure 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic diagram of the lower structure of FIG. 1 .

FIG. 3 is a schematic structural diagram of the first buffer energy absorbing device in FIG. 1 .

FIG. 4 is a schematic structural diagram of the second buffer energy absorbing device in FIG. 1 .

In the picture 1. The upper cover of the driver's cab, 2. The lower enclosure of the driver's cab, 3. The chassis of the car body, 4. The rear end wall of the driver's cab, 5. The front end wall, 6. The side wall, 7. The rear end Wall, 8. Buffer energy absorbing device 1, 9. Buffer energy absorbing device 2, 81. Locking plate 1, 82. Cover plate 1, 83. Guide column, 84. Crush deformation body 1, 85. Support plate 1, 86. Bottom plate one, 91. Lock plate two, 92. Cover plate two, 93. Crush deformed body two, 94. Support plate two, 95. Bottom plate two.

Embodiments of the present invention

1 is a schematic diagram of the structure of the present invention, a diesel locomotive cab with multi-level collision protection, including a cab upper cover 1, a lower cab enclosure 2, a vehicle body underframe 3 and a cab rear wall 4 , the lower enclosure 2 of the driver's cab is composed of a front end wall 5, a side wall 6 and a rear end wall 7, the front end of the vehicle body chassis 3 is provided with a buffer energy absorbing device 1 8, and the front end wall 5. The front end is provided with a buffer energy-absorbing device 29.

As shown in FIG. 1 and FIG. 2 , the lower enclosure 2 of the driver's cab is fixed on the vehicle body underframe 3 and connected with the vehicle body underframe 3 by welding.

As shown in FIG. 1 and FIG. 2 , the front end of the front end wall 5 is provided with at least six buffer energy absorbing devices 2 9 in a rectangular array.

1 and 3 , the buffer energy absorption device 1 8 is composed of a locking plate 1 81 , a cover plate 1 82 , a guide column 83 , a crushing deformation body 1 84 , a support plate 1 85 and a bottom plate 1 86 .

1 and 3, the locking plate 1 81 is in the shape of a zigzag plate, and is welded and fixed to the front end surface of the cover plate 1 82 by at least two locking plates 1 81, and the crushing deformation body 1 84 is made of aluminum. A round tube is made, and the crushing deformation body 84 is arranged in an array between the cover plate 1 82 and the bottom plate 86. The outer surface layer of the crushing deformation body 84 is evenly provided with crushing deformation inducing grooves. A support plate 85 is fixed on the outer side of the deformation body 1 84 and located between the cover plate 1 82 and the bottom plate 86 . The first locking plate 81 is a zigzag plate, and the guide column 83 is a circular tube distributed at both ends. Through the locking plate one 81 and the guide column 83, the moving direction of the collision object is locked and guided, so that it is perpendicular to the longitudinal direction of the locomotive. The frontal movement of the locomotive ensures that the crushing deformation body 1 84 and the supporting plate 1 85 are deformed along the longitudinal direction of the locomotive, so as to maximize the performance of the buffer energy absorption device 8; the crushing deformation body 1 84 They are distributed between the cover plate 1 82 and the bottom plate 1 86 in a rectangular array, and the crush deformation inducing grooves are evenly opened on the surface of the crush deformation body 84, so as to buffer the energy absorbing device 8 under the action of a small impact force. The lower opening of the crush deformation avoids the drastic change of acceleration in the collision.

1 and 4 , the second buffer energy absorption device 9 is composed of a second locking plate 91 , a second cover plate 92 , a second crushing deformation body 93 , a second supporting plate 94 and a second bottom plate 95 .

1 and 4 , the second locking plate 91 is in the shape of a zigzag plate, and is welded and fixed to the front end surface of the second cover plate 92 by at least two locking plates 91 , and the second crushing deformation body 93 is quadrilateral. The prismatic square honeycomb structure, and the second crushing deformation body 93 is arranged in an array between the second cover plate 92 and the second bottom plate 95, and the second crushing deformation body 93 is located outside and is fixed between the second cover plate 92 and the second bottom plate 95. There are support plates two 94. By locking the second plate 91, there is no relative sliding between the collision object and the buffer energy-absorbing device 9; the crushing deformation body 2 93 adopts a quadrangular prismatic square honeycomb structure, which is relatively stable and has certain guiding properties; The second tightening plate 91 and the second crushing deformation body 93 keep the collision object moving in the longitudinal direction of the locomotive, which ensures that the second 9 of the buffer energy absorbing device is crushed and deformed along the longitudinal direction of the locomotive, and maximizes the performance of the buffer energy absorbing device.

1 and 2 , at least three buffer energy-absorbing devices 1 8 are arranged at the front end of the vehicle body underframe 3 along the transverse direction of the locomotive.

Specific embodiment 1: The first-level safety protection measures of the driver's cab are mainly composed of three buffer energy-absorbing devices 1 8 distributed at the end of the chassis 3 of the vehicle body along the lateral direction of the locomotive. During the collision process, the buffer energy absorbing device 1 8 First contact with the collision object to open the first level of safety protection in the driver's cab. The buffer energy-absorbing device 1 8 is fixedly connected to the vehicle body underframe 3 through bolts, and is kept independent of each other to ensure that the collision object collides with any side of the front of the cab, and the buffer energy-absorbing device 1 8 can effectively play a protective role, and It is convenient for the maintenance and replacement of the buffer energy-absorbing device-8. The buffer energy absorption device 1 8 is mainly composed of a locking plate 1 81 , a cover plate 1 82 , a guide column 83 , a crushing deformation body 1 84 , a support plate 1 85 and a bottom plate 1 86 . The locking plate 1 81 is mainly a plurality of zigzag plates, and the guide column 83 is a circular tube distributed at both ends. Through the locking plate 1 81 and the guide column 83, the moving direction of the collision object is locked and guided, so that it follows the longitudinal direction of the locomotive. That is, it moves perpendicular to the front direction of the locomotive, thus ensuring that the crushing deformable body 1 84 and the support plate 1 85 are deformed along the longitudinal direction of the locomotive, so as to maximize the performance of the buffer energy-absorbing device 1 8; the crushing deforming body 1 84 is made of aluminum The round tubes are distributed between the cover plate one 82 and the bottom plate one 86 in an array, and there are even crushing deformation inducing grooves on the surface of the aluminum tube, so that the buffer energy absorbing device one 9 can be opened under the action of a small impact force. The crushing deformation avoids the drastic change of acceleration in the collision.

Specific embodiment 2: The second-level safety protection measures of the driver's cab are mainly composed of buffer energy-absorbing devices 2 9 distributed in a 2×6 matrix at the front end of the front end wall 5. When the buffer energy-absorbing device in the first-level safety protection measures The first 8 crush deformation reaches the maximum stroke and the collision process is not completed, the buffer energy absorption device 2 9 will come into contact with the collision object, opening the second-level safety protection of the driver's cab. The second buffer energy absorbing device 9 is also fixedly connected to the front end wall 5 through bolts, and is kept independent of each other. The second buffer energy absorption device 9 is mainly composed of a second locking plate 91 , a second cover plate 92 , a second crushing deformation body 93 , a second supporting plate 94 and a second bottom plate 95 . By locking the second plate 91, there is no relative sliding between the collision object and the buffer energy-absorbing device 9, and the second crushing deformation body 93 adopts a quadrangular prismatic square honeycomb structure, which is relatively stable and has certain guiding properties; The second tightening plate 91 and the second crushing deformation body 93 keep the colliding object moving in the longitudinal direction of the locomotive, which ensures that the second 9 of the buffer energy absorbing device is crushed and deformed along the longitudinal direction of the locomotive, and maximizes the performance of the buffer energy absorbing device.

Specific embodiment three: the third-level safety protection measure of the driver's cab is composed of the lower enclosure 2 of the driver's cab. When the buffer energy-absorbing device 2 9 in the second-level safety protection measure is crushed and deformed to reach the maximum stroke, the lower enclosure of the driver's cab is 2. It resists the impact force of collision in the form of elastic or plastic deformation, and opens the third-level safety protection of the driver's cab. The lower enclosure 2 of the driver's cab is mainly composed of the front end wall 5, the side wall 6 and the rear end wall 7, and is connected with the chassis 3 of the vehicle body by welding to form a frame structure with good stability. During the collision, the impact force of the collision is effectively transmitted to the vehicle body underframe 3 through structures such as columns, beams, longitudinal beams, stiffeners and diagonal braces, thereby effectively protecting the overall structure of the driver's cab.

Specific embodiment 4: The first-level safety protection measures of the driver's cab are mainly composed of three buffer energy-absorbing devices 1 8 distributed at the end of the chassis 3 of the vehicle body along the lateral direction of the locomotive. During the collision process, the buffer energy absorbing device 1 8 The first level of safety protection of the driver's cab is activated by contacting the collision object first; the second-level safety protection measures of the driver's cab are mainly composed of buffer energy-absorbing devices 2 9 distributed in a 2×6 matrix at the front end of the front end wall 5 . In the first-level safety protection measures, the first-level buffer energy-absorbing device 8 is crushed and deformed to reach the maximum stroke and the collision process is not completed. The third-level safety protection measure of the cab is composed of the lower enclosure 2 of the cab. When the buffer energy-absorbing device 29 in the second-level safety protection measure is crushed and deformed to reach the maximum stroke, the lower enclosure 2 of the cab will deform elastically or plastically. The form resists the impact of collision and opens the third-level safety protection of the driver's cab.

The above description is only illustrative rather than restrictive for the present invention, and those of ordinary skill in the art will understand that many modifications, changes or the like can be made without departing from the spirit and scope defined by the appended claims. effect, but will fall within the protection scope of the present invention.

Claims (8)

1. A diesel locomotive driver's cab with multi-level collision protection, comprising an upper top cover (1) of the driver's cab, a lower enclosure (2) of the driver's cab, a vehicle body underframe (3) and a rear end wall of the driver's cab (4), The feature is that the lower enclosure (2) of the driver's cab is composed of a front end wall (5), a side wall (6) and a rear end wall (7), and the front end of the vehicle body chassis (3) is provided with a buffer One energy-absorbing device (8), the front end of the front end wall (5) is provided with a second (9) buffering energy-absorbing device.
2. A diesel locomotive driver's cab with multi-level collision protection according to claim 1, characterized in that the lower enclosure (2) of the driver's cab is fixed on the chassis (3) of the vehicle body, and is welded with the chassis (3). The vehicle body bottom frame (3) is connected.
3. A diesel locomotive driver's cab with multi-level collision protection according to claim 1, characterized in that, at least six buffer energy-absorbing devices two (two (2) are arranged in a rectangular array at the front end of the front end wall (5). 9).
4. A diesel locomotive cab with multi-level collision protection according to claim 1, wherein the first buffer energy absorption device (8) consists of a locking plate (81), a cover plate (82), A guide column (83), a crushing deformation body (84), a supporting plate (85) and a bottom plate (86) are composed.
5. A diesel locomotive cab with multi-level collision protection according to claim 4, characterized in that the first locking plate (81) is in the shape of a zigzag plate, and consists of at least two locking plates, one (81) It is welded and fixed to the front end surface of the first cover plate (82), and the first crushing deformation body (84) is made of an aluminum round tube, and the first crushing deformation body (84) is arranged in an array on the first cover plate (82). ) and the bottom plate (86), the outer surface of the crushing deformation body (84) is evenly provided with crushing deformation induction grooves, and the crushing deformation body one (84) is located outside the cover plate one (82). A supporting plate (85) is fixed between the first base plate (86) and the guide column (83) passes through the base plate one (86) and the top end is fixed on the rear end surface of the cover plate one (82).
6. A diesel locomotive cab with multi-level collision protection according to claim 1, characterized in that the second buffer energy absorption device (9) consists of a second locking plate (91), a second cover plate (92), It consists of two crushing deformation bodies (93), two supporting plates (94) and two bottom plates (95).
7. A diesel locomotive cab with multi-level collision protection according to claim 6, characterized in that the second locking plate (91) is in the shape of a zigzag plate, and consists of at least two locking plates two (91) Welding and fixing on the front end surface of the second cover plate (92), the crushing deformation body two (93) is a quadrilateral prismatic square honeycomb structure, and the crushing deformation body two (93) is arranged in an array on the cover plate two (93). 92) and the second bottom plate (95), a supporting plate two (94) is fixed on the outer side of the crushing deformation body two (93) and located between the second cover plate (92) and the second bottom plate (95).
8. A diesel locomotive cab with multi-level collision protection according to claim 1, characterized in that, at least three buffer energy-absorbing devices one (8) are arranged at the front end of the vehicle body underframe (3) along the lateral direction of the locomotive .