Hopper car hoisting structure

Abstract

The hopper car hoisting structure comprises a reinforcing plate, an upper connecting plate, a hoisting plate and a rib plate, the reinforcing plate comprises a reinforcing plate body part, and the reinforcing plate body part is provided with a first free tail end close to a sleeper beam and a second free tail end away from the sleeper beam; the first free tail end of the reinforcing plate is bent and extends to form a first bent part, the second free tail end of the reinforcing plate is bent and extends to form a second bent part, the upper connecting plate comprises an upper connecting plate main body part and a third bent part, the reinforcing plate main body part is respectively welded with the side wall and the sleeper beam, and the third bent part is welded with the side wall and the sleeper beam. The second bending part is welded to the side funnel plate, the inner wall of the side wall and the end funnel plate, the upper connecting plate main body part is welded to the bottom of the lower side beam, the third bending part of the upper connecting plate is welded to the reinforcing plate main body part, and the top of the lifting plate is welded to the upper connecting plate main body part. And the bottom of the hoisting plate is welded with the sleeper beam lower cover plate, so that the structural rigidity is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of hopper carts, and more particularly to a hopper cart lifting structure. Background Technology

[0002] A railway hopper car is a common and important type of specialized freight car used in railway freight transport. Its distinguishing feature is one or more large loading hooks (hopper openings) on the upper part of the car body, and a controllable unloading port at the bottom. After manufacturing, hopper cars require lifting equipment for transport and handling, including during subsequent maintenance. Please refer to [link to relevant documentation]. Figure 1 and Figure 2 , Figure 1 , Figure 2 The present invention discloses a hopper car lifting structure, which achieves lifting by setting lifting lugs 3' on the outside of the bolster beam 1' and below the lower side beam 2'. The lifting lugs 3' are arranged laterally along the car. During lifting, they are connected to the lifting lugs 3' by shackles on the lifting device. Due to clearance constraints, the lifting lug holes are generally deep. During lifting, the lifting straps will come into contact with the side wall 7'. Because the wall panel is thin, it is easy to damage the car body. Furthermore, from the longitudinal perspective of the vehicle body, since the lifting lug 3' is located at the bolster beam 1', and an end funnel plate 4' is located at a distance from the bolster beam 1', the structural strength of the bolster beam 1' and the end funnel plate 4' is relatively strong. Therefore, the weak point of stress during lifting operations is mainly located in the middle section 5' between the bolster beam 1' and the end funnel plate 4'. To solve this technical problem, the commonly used approach in the prior art is to add a reinforcing plate 6' to the middle section 5' between the bolster beam 1' and the end funnel plate 4'. This reinforcing plate 6' is tightly welded to the outer wall of the side wall and welded to the lower side beam 2' at the top. In our daily work, we have found that placing the reinforcing plate 6' at this position not only results in poor connection with other components, but also prevents it from utilizing the strength of the bolster beam 1' and the end funnel plate 4'. In addition, since the wall panel of the side wall 7' is relatively thin, the structural rigidity at the connection between the side wall 7' and the bolster beam 1 is poor, resulting in local stress concentration.

[0003] Therefore, we considered how to make a series of improvements to the structure and connection of the reinforcing plate itself, so that the front of the reinforcing plate can extend to the bolster beam and the rear can extend to the end funnel plate. By using the strength of the bolster beam and the end funnel plate, we can improve the strength of the middle section between the bolster beam and the end funnel plate. In addition, we can improve the lifting structure to avoid the lifting straps from contacting the side wall. Summary of the Invention

[0004] To address the aforementioned problems, the present invention aims to provide a hopper car lifting structure that can improve structural rigidity.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a hopper car lifting structure, comprising: a reinforcing plate, an upper connecting plate, a lifting plate, and at least two stiffening plates. The reinforcing plate includes: a main body portion, the main body portion having a first free end near the bolster beam and a second free end away from the bolster beam; the first free end of the reinforcing plate is bent and extended with a first bend, and the second free end of the reinforcing plate is bent and extended with a second bend; the upper connecting plate includes a main body portion and a third bend portion extending from the main body portion; the lifting plate has lifting holes; the side of the main body portion of the reinforcing plate near the lower side beam is connected to the side wall. The reinforcing plate is welded to the upper cover plate and the web of the bolster beam on the side closest to the web of the bolster beam. The first bend of the reinforcing plate is welded to the lower cover plate and the web of the bolster beam. The second bend is welded to the side funnel plate, the inner wall of the side wall, and the end funnel plate. The main body of the upper connecting plate is welded to the bottom of the lower side beam. The third bend of the upper connecting plate is welded to the main body of the reinforcing plate. The top of the hoisting plate is welded to the main body of the upper connecting plate. The bottom of the hoisting plate is welded to the lower cover plate of the bolster beam. The reinforcing plate, the upper connecting plate, the hoisting plate, and the lower cover plate of the bolster beam together form a space, and the stiffening plate is welded within this space.

[0006] Preferably, the hopper car lifting structure of the present invention is further configured such that the lifting plate and the outer side wall of the lower side beam are located in the same plane.

[0007] Preferably, the hopper car lifting structure of the present invention is further configured such that the length of the reinforcing plate covers the bolster beam, the end hopper plate and the intermediate section located between the bolster beam and the end hopper plate in the longitudinal direction of the hopper car.

[0008] Preferably, the hopper car lifting structure of the present invention is further configured as follows: The second free end of the reinforcing plate is designed in a dovetail shape.

[0009] Preferably, the hopper car lifting structure of the present invention is further configured such that both free ends of the lifting plate are arc-shaped gradient structures.

[0010] Preferably, the hopper car lifting structure of the present invention is further configured as follows: The lower edge of the middle section of the main body of the reinforcing plate is lower than the lower edge of the side wall.

[0011] Preferably, the hopper car lifting structure of the present invention is further configured such that there are two stiffening plates, one of which is located on one side of the lifting hole and the other is located on the other side of the lifting hole.

[0012] Preferably, the hopper car lifting structure of the present invention is further configured such that the lifting plate is arranged along the longitudinal direction of the hopper car.

[0013] Preferably, the hopper car lifting structure of the present invention is further configured such that the thickness of the reinforcing plate is greater than the thickness of the side wall.

[0014] Preferably, the hopper car lifting structure of the present invention is further configured such that the main body of the reinforcing plate is arc-shaped.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The hopper car lifting structure of the present invention improves the structure and connection relationship of the reinforcing plate itself, so that its length covers the bolster beam, the end funnel plate and the middle section between the bolster beam and the end funnel plate in the longitudinal direction of the hopper car. The strength of the bolster beam and the end funnel plate is used to improve the strength of the middle section between the bolster beam and the end funnel plate. In addition, the present invention improves the connection rigidity between the side wall and the bolster beam by welding the reinforcing plate to the side wall and the bolster beam respectively, and avoids local stress concentration (in the prior art, the side wall and the bolster beam are connected by direct welding). In addition, the present invention improves the traditional lifting structure by changing the traditional horizontal setting of the lifting plate to a vertical setting. After the improvement, the lifting hole of the lifting plate is located on the outermost side (the lifting hole of the prior art is located on the inside), so the lifting strap can be prevented from hitting the side wall during the lifting operation. The present invention also mitigates stress and reduces local stress concentration during lifting by designing the second free end of the main body of the reinforcing plate into a dovetail shape and the two free ends of the lifting plate into an arc-shaped gradient structure. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the hopper car lifting structure in the prior art.

[0017] Figure 2 This is a schematic diagram of the hopper car lifting structure from another angle in the existing technology.

[0018] Figure 3 This is a three-dimensional structural diagram of the hopper car lifting structure in this invention.

[0019] Figure 4 This is a schematic diagram of the main structure of the hopper car lifting structure in this invention.

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure along line AA shown in the figure.

[0021] Figure 6 for Figure 5 A magnified view of a section at point B in the middle.

[0022] Figure 7This is a side view of the hopper car lifting structure in this invention.

[0023] Figure 8 for Figure 7 A magnified view of a section at point C.

[0024] Figure 9 This is an exploded structural diagram of the hopper car lifting structure in this invention.

[0025] Figure 1 and Figure 2 In the middle section: 1' Pillar beam, 2' Lower side beam, 3' Lifting lug, 4' End funnel plate, 5' Middle section between the pillow beam and the end funnel plate, 6' Reinforcing plate, 7' Side wall.

[0026] Figures 3 to 9 1. Reinforcing plate; 10. Main body of reinforcing plate; 100. Middle section of main body of reinforcing plate; 11. First free end; 110. First bend; 12. Second free end; 120. Second bend; 2. Upper connecting plate; 20. Main body of upper connecting plate; 21. Third bend; 3. Lifting plate; 30. Lifting hole; 4. Rib plate; 40. Notch; 41. Round hole; 5. Pillar beam; 50. Pillar beam web; 51. Pillar beam upper cover plate; 52. Pillar beam lower cover plate; 6. End funnel plate; 7. Middle section located between the pillow beam and the end funnel plate; 8. Lower side beam; 80. Outer side wall; 9. Side wall; 13. Side funnel plate. Detailed Implementation

[0027] The following detailed description of a hopper car lifting structure according to the present invention will be provided through specific embodiments.

[0028] Please see Figures 3 to 9A hopper car lifting structure includes: a reinforcing plate 1, an upper connecting plate 2, a lifting plate 3, and at least two stiffening plates 4. The reinforcing plate 1 includes: a main body 10, the main body 10 of which has a first free end 11 located near the bolster beam and a second free end 12 located away from the bolster beam. The second free end 12 of the reinforcing plate 1 is dovetail-shaped, which can alleviate stress and reduce local stress concentration during lifting. The length of the reinforcing plate 1 covers the bolster beam 5, the end funnel plate 6, and the intermediate section 7 located between the bolster beam 5 and the end funnel plate 6 in the longitudinal direction of the funnel car. This allows the strength of the intermediate section 7 between the bolster beam 5 and the end funnel plate 6 to be increased by utilizing the strength of the bolster beam 5 and the end funnel plate 6. The first free end 11 of the reinforcing plate 1 is bent and extended to form a first bend 110, and the second free end 12 of the reinforcing plate 1 is bent and extended to form a second bend 120. The upper connecting plate 2 includes an upper connecting plate main body 20 and a third bend 21 that bends and extends from the upper connecting plate main body 20. The lifting plate 3 is arranged longitudinally along the funnel car. The lifting plate 3 and the outer side wall 80 of the lower side beam 8 are located in the same plane. Both free ends of the lifting plate 3 are arc-shaped gradual structures, which can alleviate stress and reduce local stress concentration during lifting. The lifting plate 3 is provided with lifting holes 30. In this embodiment, there are two stiffening plates 4, one of which is located on one side of the lifting hole 30 and the other is located on the other side of the lifting hole 30, thereby greatly improving the structural strength.

[0029] The side of the reinforcing plate main body 10 closest to the lower side beam 8 is welded to the inner wall of the side wall 9. The reinforcing plate main body 10 is arc-shaped. The thickness of the reinforcing plate 1 is greater than the thickness of the side wall 9. In this embodiment, the thickness of the reinforcing plate 1 is 8 mm, and the thickness of the side wall 9 is 4 mm. The side of the reinforcing plate main body 10 closest to the bolster beam web 50 is welded to both the bolster beam upper cover plate 51 and the bolster beam web 50. In this embodiment, only the front end of the reinforcing plate main body 10 closest to the bolster beam web 50 is welded to both the bolster beam upper cover plate 51 and the bolster beam web 50. The lower edge of the middle section 100 of the reinforcing plate main body is lower than the lower edge of the side wall 9. This design is beneficial for the reinforcing plate 1 to bear the main load. The first bent portion 110 of the reinforcing plate 1 is welded to the lower cover plate 52 of the bolster beam and the web plate 50 of the bolster beam, respectively. The first bent portion 110 is perpendicular to the lower cover plate 52 of the bolster beam. Specifically, in this embodiment, the bottom surface of the first bent portion 110 of the reinforcing plate 1 is welded to the lower cover plate 52 of the bolster beam 5, and the side surface of the first bent portion 110 of the reinforcing plate 1 is welded to the web plate 50 of the bolster beam. The second bent portion 120 is welded to the side funnel plate 13, the inner wall of the side wall 9, and the end funnel plate 6. Specifically, in this embodiment, the bottom of the second bent portion 120 is welded to the side funnel plate 13, the side of the second bent portion 120 is welded to the inner wall of the side wall 9, and the end of the second bent portion 120 is welded to the end funnel plate 6. The main body of the upper connecting plate 20 is welded to the bottom of the lower side beam 8. The third bent portion 21 of the upper connecting plate 2 is welded to the main body of the reinforcing plate 10. The top of the hoisting plate 3 is welded to the main body of the upper connecting plate 20, and the bottom of the hoisting plate 3 is welded to the lower cover plate 52 of the pillow beam. The reinforcing plate 1, the upper connecting plate 2, the hoisting plate 3, and the lower cover plate 52 of the pillow beam together form a space, and the stiffening plate 4 is welded into this space. To prevent water accumulation, a notch 40 is provided at the corner of the stiffening plate 4, and a round hole 41 is also provided in the center of the stiffening plate 4 for weight reduction.

[0030] The hopper car lifting structure of this invention improves the structure and connection relationship of the reinforcing plate itself, so that its length covers the bolster beam, the end funnel plate, and the intermediate section between the bolster beam and the end funnel plate in the longitudinal direction of the hopper car. The strength of the bolster beam and the end funnel plate is used to improve the strength of the intermediate section between the bolster beam and the end funnel plate. Furthermore, by welding the reinforcing plate to the side wall and the bolster beam respectively, this invention improves the connection rigidity between the side wall and the bolster beam and avoids local stress concentration. In addition, this invention improves the traditional lifting structure by changing the traditional transversely arranged lifting plate to a longitudinally arranged lifting plate. The lifting holes of the improved lifting plate are located on the outermost side, thus preventing the lifting strap from hitting the side wall during lifting operations.

[0031] The above embodiments are merely illustrative of the principles and effects of the present invention, as well as some examples of its application, and are not intended to limit the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements are all within the scope of protection of the present invention.

Claims

1. A hopper car lifting structure, characterized in that: include: The system comprises a reinforcing plate, an upper connecting plate, a lifting plate, and at least two stiffening plates. The reinforcing plate includes a main body with a first free end near the bolster beam and a second free end away from the bolster beam. The first free end of the reinforcing plate is bent and extended with a first bend, and the second free end of the reinforcing plate is bent and extended with a second bend. The upper connecting plate includes a main body and a third bend extending from the main body. The lifting plate has lifting holes. The side of the main body of the reinforcing plate near the lower side beam is welded to the inner wall of the side wall. The web of the beam is welded to the upper cover plate and the web of the bolster beam on one side. The first bend of the reinforcing plate is welded to the lower cover plate and the web of the bolster beam. The second bend is welded to the side funnel plate, the inner wall of the side wall, and the end funnel plate. The main body of the upper connecting plate is welded to the bottom of the lower side beam. The third bend of the upper connecting plate is welded to the main body of the reinforcing plate. The top of the hoisting plate is welded to the main body of the upper connecting plate. The bottom of the hoisting plate is welded to the lower cover plate of the bolster beam. The reinforcing plate, the upper connecting plate, the hoisting plate, and the lower cover plate of the bolster beam together form a space. The stiffening plate is welded within this space.

2. The hopper car lifting structure as described in claim 1, characterized in that: The hoisting plate and the outer wall of the lower side beam are located in the same plane.

3. The hopper car lifting structure as described in claim 1, characterized in that: The length of the reinforcing plate covers the bolster beam, the end funnel plate, and the intermediate section located between the bolster beam and the end funnel plate in the longitudinal direction of the funnel car.

4. The hopper car lifting structure as described in claim 1, characterized in that: The second free end of the reinforcing plate is designed in a dovetail shape.

5. The hopper car lifting structure as described in claim 1, characterized in that: Both free ends of the hoisting plate have an arc-shaped gradient structure.

6. The hopper car lifting structure as described in claim 1, characterized in that: The lower edge of the middle section of the main body of the reinforcing plate is lower than the lower edge of the side wall.

7. The hopper car lifting structure as described in claim 1, characterized in that: The number of stiffening plates is two, with one stiffening plate located on one side of the hoisting hole and the other stiffening plate located on the other side of the hoisting hole.

8. The hopper car lifting structure as described in claim 1, characterized in that: The lifting plate is set along the longitudinal direction of the funnel car.

9. The hopper car lifting structure as described in claim 1, characterized in that: The thickness of the reinforcing plate is greater than the thickness of the side wall.

10. The hopper car lifting structure as described in claim 1, characterized in that: The main body of the reinforcing plate is curved.

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