[0032] The present invention will be further described in detail below in conjunction with the drawings and embodiments.
[0033] Such as figure 1 with figure 2 As shown, the anti-climbing and hierarchically triggered nested rail vehicle end energy absorbing structure of the present invention includes a primary energy absorbing structure, a secondary energy absorbing structure, a connecting beam structure 5 and a rear support beam 8. The energy structure includes an energy absorbing structure 1 with anti-climbing teeth on one side and an energy absorbing structure 2 with anti-climbing teeth on two sides. The secondary energy absorbing structure includes a box-type energy absorbing structure 3 on one side and an equal section on one side. Variable cross-section box energy-absorbing structure 4, two-position side equal cross-section box-type energy-absorbing structure 6 and two-position side variable cross-section box-type energy-absorbing structure 7; one side with anti-climbing tooth energy absorption structure 1 and two-position side with anti-climbing structure The structure of the crawling tooth energy absorbing structure 2 is exactly the same. The ends of the one side with anti-climbing tooth energy absorbing structure 1 and the two side with anti-climbing tooth energy absorbing structure 2 are fixedly connected to the front end surface of the connecting beam structure 5; The structure of the uniform cross-section box-type energy-absorbing structure 3 on the position side and the uniform cross-section box-type energy-absorbing structure 6 on the two-position side are exactly the same, the one-side variable-section box-type energy-absorbing structure 4 and the two-position side variable-section box-type energy-absorbing structure 7 The structure is exactly the same, one side uniform cross-section box energy absorbing structure 3, one side variable cross section box energy absorbing structure 4, two side uniform cross section box energy absorbing structure 6 and two side variable cross section box energy absorbing structure The beginning ends of structure 7 are all fixedly connected to the rear end surface of connecting beam structure 5, one side uniform cross-section box energy absorbing structure 3, one side variable cross-section box energy absorbing structure 4, and two side uniform cross-section box energy absorbing structure The ends of the structure 6 and the two-position side variable cross-section box-type energy absorbing structure 7 are both fixedly connected to the front end surface of the rear support beam 8.
[0034] Such as Figure 3 to Figure 6 As shown, the energy absorbing structure 1 with anti-climbing teeth on one side includes anti-climbing teeth 1-1, channel steel 1-2 on the outer wall of the one side, channel steel 1-3 on the lower outer wall of the one side, and groove on the inner wall of the one side. Steel 1-4, channel steel 1-5 on the lower inner wall of one side, four back-shaped guide vertical plates 1-6 with notches on one side and one side of the first level, the first group of waterproof panels 1-7, the first level The second group of waterproof stickers 1-8 and the third group of waterproof stickers 1-9. One side upper outer wall channel steel 1-2 is provided with a first level upper guide oblong hole 1-2-1 and four first level upper half guide oblong holes 1-2-2, one side lower outer wall channel steel 1-3 There are four first-level lower guide oblong holes 1-3-1 and four first-level lower half guide oblong holes 1-3-2. The channel steel 1-4 on the inner wall of the one side and the channel steel 1-5 on the lower inner wall of the one side are butt welded to form an inner box structure. The front end of the inner box structure is fixed on the rear end surface of the anti-climbing tooth 1-1. Four first-level guide vertical plates 1-6 with notches on one side and fixed to the outside of the inner box structure at equal intervals; channel steel 1-2 on the outer wall on the one side and channel steel on the lower outer wall on the one side 1-3 is butt welded into an outer box structure, the front end of the outer box structure is fixed on the rear end of the anti-climbing tooth 1-1, and four first-level guide vertical plates with notches on one side and one side 1- 6 Plug and weld with the outer box structure; the first group of waterproof panels 1-7 is welded inside the first-level guide oblong hole 1-2-1, and the second group of first-level waterproof panels 1-8 are welded at the same time Inside the four oblong holes formed by the four first-level upper half guiding oblong holes 1-2-2 and the four first-level lower guide oblong holes 1-3-1, the first-level third group of waterproof panels 1-9 are welded to the four The inside of each one-level lower guide long circular hole 1-3-1 forms a nested box-type energy-absorbing structure as a whole.
[0035] Such as Figure 7 to Figure 9 As shown, the box-type energy-absorbing structure 3 with a constant cross section on the one side includes a channel steel 3-1 on the outer wall with a constant cross section on the one side, a channel steel 3-2 on the outer wall with a constant cross section on the one side, and an inner wall channel steel with a constant cross section on the one side. 3-3, one side equal cross-section lower inner wall channel steel 3-4, six second one side equal cross-section guide vertical plates 3-5 with notches on the one side, second second group of first group waterproof board 3-6 and The second group of second class waterproof board 3-7. The channel steel 3-1 on the outer wall of the uniform cross-section on the one side is provided with a second-stage upper guide oblong hole 3-1-1 and two second-stage upper half-guided oblong holes 3-1-2, and the lower outer wall groove of the uniform section on the one side Steel 3-2 is provided with two second-stage lower half guide oblong holes 3-2-1. The inner wall channel steel 3-3 on the one side equal section and the lower inner wall channel steel 3-4 on the one side equal section are butt welded to form an inner equal section box structure, and six secondary equal sections with a gap on the one side Type guide vertical plates 3-5 are arranged at equal intervals, four of which are sleeved and fixed to the outside of the inner box structure with equal cross-section; the outer wall channel steel 3-1 on the one side with equal section and the lower outer wall groove on the one side with equal section Steel 3-2 is butt welded into an outer uniform cross-section box structure, six second-level and one-side uniform cross-section guide vertical plates 3-5 with notches on the outer layer are plug-welded with the outer uniform cross-section box structure, and the inner layer The length of the uniform cross-section box structure is less than the length of the outer uniform cross-section box structure. The inner uniform cross-section box structure and the outer uniform cross-section box structure adopt rear-end alignment welding; the second group of the first group of waterproof panels 3- 6 Welded on the inside of the second-level guide oblong hole 3-1-1, and the second-level waterproof board 3-7 is welded to the two second-level upper half guide oblong holes 3-1-2 and the two second-level bottom at the same time The inside of the two oblong holes formed by the semi-guide oblong holes 3-2-1 forms a nested box-type energy absorbing structure as a whole.
[0036] Such as Figure 10 to Figure 12 As shown, the one-side variable cross-section box-type energy-absorbing structure 4 includes one-side variable cross-section upper outer wall channel steel 4-1, one-side variable cross-section lower outer wall channel steel 4-2, and one-side variable cross-section upper inner wall channel steel 4-3. Channel steel on the lower inner wall of the one side variable section 4-4, four secondary variable section guide vertical plates with notches on the one side, 4-5, two secondary variable section with notches on the one side Guide vertical plate 4-8, secondary upper end surface waterproof patch 4-6, and two secondary lower end surface waterproof patches 4-7. The channel steel 4-1 on the outer wall of the one side variable section is provided with a secondary variable section guide oblong hole 4-1-1 and two secondary variable section upper half guide oblong holes 4-1-2, one side variable section The channel steel 4-2 on the outer wall of the lower section is provided with two secondary variable section lower half guide oblong holes 4-2-1. One side variable section upper inner wall channel steel 4-3 and one side variable section lower inner wall channel steel 4-4 are butt welded to form an inner variable cross-section box structure, and four second-level equal sections with gaps on one side Type guide vertical plates 3-5 and two secondary variable cross-section guide vertical plates 4-8 with notches on one side are arranged at equal intervals in sequence, four secondary constant cross-section guide vertical plates with notches on one side 3 -5 sets of external variable cross-section box structure in the inner layer and fixed to it; butt welding of the outer wall channel steel 4-1 on the one side variable section and the lower outer wall channel steel 4-2 of the one side variable section to form an outer variable section Box structure, four secondary uniform cross-section guide vertical plates 3-5 with notches on one side and two secondary variable cross-section guide vertical plates 4-8 with notches on one side are all connected with the outer variable section box Body structure plug welding, the length of the inner variable section box structure is less than the length of the outer variable section box structure, the inner variable section box structure and the outer variable section box structure adopt rear-end alignment welding; The upper end surface waterproof cladding 4-6 is welded to the inside of the guide oblong hole 4-1-1 on the secondary variable section, and the two secondary lower end waterproof cladding plates 4-7 are simultaneously welded to the two secondary variable section upper semi-oriented oblong holes The inside of the two oblong holes formed by the hole 4-1-2 and the two secondary variable cross-section lower half guide oblong holes 4-2-1 form a nested box-type energy absorbing structure as a whole.
[0037] Such as Figure 13 with Figure 14 As shown, the connecting beam structure 5 includes an L-shaped beam 5-1, a rear vertical plate 5-2, two bottom sealing plates 5-3, two side sealing plates 5-4, two middle sealing plates 5-5 and Multiple vertical ribs 5-6; the middle of the L-shaped beam 5-1 and the rear vertical plate 5-2 are provided with a gap 5-1-1 for the passage of door-shaped couplers, and multiple vertical ribs 5-6 pass It is inserted and fixed to the L-shaped beam 5-1 and welded to the two bottom sealing plates 5-3. The rear vertical plate 5-2 is welded with multiple vertical ribs 5-6 to form multiple square structures; two The side sealing plates 5-4 are correspondingly welded to the outer ends of the square structure on both sides, and the two middle sealing plates 5-5 are corresponding to the vertical ribs 5-6 and the L-shaped beams 5-1 welded on both sides of the gap 5-1-1. On the inside upper end surface.
[0038] Such as Figure 15 As shown, the rear support beam 8 includes C-shaped channel steel 8-1, vertical sealing plate 8-2, left sealing plate 8-3 and right sealing plate 8-4, C-shaped channel steel 8-1 and vertical sealing The plates 8-2 are welded to form a square cavity structure, and the left side sealing plate 8-3 and the right side sealing plate 8-4 are correspondingly welded to the ends of the square cavity structure to form a sealed box structure.
[0039] Such as Figure 16 to Figure 18 As shown in Table 1, after simulation analysis and experimental verification, the analysis and experimental comparison error of the energy absorbed by each energy-absorbing substructure of the present invention is within 10%. The maximum energy absorbed by the overall energy-absorbing structure is 1.35MJ.
[0040] Table 1 Analysis and test comparison of energy absorption by various energy-absorbing structures
[0041]
