Hopper car bottom door structure and hopper car

Abstract

The utility model discloses a hopper car bottom door structure and a hopper car, and relates to the field of coal hopper car accessories, the hopper car bottom door structure comprises a bottom door, baffle plates are respectively arranged at two ends of the inner side along the horizontal direction, and the baffle plates are vertical to the bottom door; the bottom door hinges are uniformly arranged at the top end of the bottom door, the height of each bottom door hinge is not less than 55 mm, and the width of each bottom door hinge is not less than 100 mm; the two bottom door pins are arranged at the two ends of the bottom door respectively, a clamping groove is formed in the end, close to the sleeve, of each bottom door pin in the circumferential direction, two semi-ring check rings are movably embedded in the clamping grooves, and when the two semi-ring check rings are fixed in the clamping grooves through clamping springs, the sleeve abuts against the bottom door pins through the semi-ring check rings; according to the hopper car bottom door, coal can be effectively prevented from overflowing through the baffle, abrasion of the bottom door pin and the lock body is reduced, it is guaranteed that the bottom door is opened and closed flexibly, meanwhile, the connecting size of the hinge of the bottom door is increased, and loss of the elastic check ring is avoided through the semi-ring check ring.

Description

Technical Field

[0001] This utility model belongs to the field of coal hopper car accessories, and more specifically, relates to a bottom door structure of a hopper car and a hopper car. Background Technology

[0002] The KM70 coal hopper car, as one of the main 70t-class railway freight cars, is primarily used for transporting bulk goods such as coal and ore. It can meet the needs of power plants, ports, coal preparation plants, and steel mills with fixed formations, cyclical use, and fixed-point loading and unloading. It is suitable for use on sites with unloading trenches or high platforms that allow simultaneous unloading from both sides. Unloading can be done quickly via pneumatics or manually. Operators control the opening and closing of the bottom door by operating a series of components in the pneumatic control device and the bottom door opening and closing mechanism. However, in existing KM70 coal hopper cars, when the bottom door is open, coal overflows through the gap between the bottom door and the hopper end plate during unloading, flowing between the bottom door pin and the lock body. This increases closing resistance during the bottom door closing process. After long-term use, this may cause deformation of the transmission components in the bottom door opening and closing mechanism, affecting the flexibility of the bottom door opening and closing and the reliability of the bottom door locking. Furthermore, during long-term use, the bottom door has experienced problems such as hinge folds and cracking of the weld seams on the upper door frame.

[0003] The bottom door pin, part of the bottom door assembly, directly bears the weight of the bottom door or the weight of the bottom door plus cargo when the vehicle is empty or loaded. Furthermore, the bottom door pin rubs against the bottom door pin sleeve during opening and closing; therefore, its surface undergoes carburizing treatment after machining to improve its hardness and wear resistance. The bottom door pin sleeve, as a consumable part, has a relatively lower material hardness than the bottom door pin and will be replaced after wear during use. Due to space constraints, an elastic retaining ring is used for axial positioning of the bottom door pin sleeve. However, because the elastic retaining ring is only 1.5mm thick and the groove height is 1mm, it can only withstand a very small axial force. In practical applications, the elastic retaining ring has been lost, affecting the opening and closing of the mechanism. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing a bottom door structure and a hopper car. The bottom door of the hopper car can effectively prevent coal spillage and reduce wear on the bottom door pin and lock body through the baffle, ensuring flexible opening and closing of the bottom door. At the same time, the connection size of the bottom door hinge is increased, and a semi-circular retaining ring is used to prevent the loss of the elastic retaining ring.

[0005] To achieve the above objectives, this utility model provides a funnel cart bottom door structure, comprising:

[0006] The bottom door has baffles at both ends along the horizontal direction on its inner side, and the baffles are perpendicular to the bottom door.

[0007] Multiple bottom door hinges are evenly arranged at the top of the bottom door, and the height of the bottom door hinges is not less than 55mm and the width is not less than 100mm;

[0008] Two bottom door pins are respectively set at both ends of the bottom door. The bottom door pins near the sleeve have a groove along the circumference. Two semi-circular retaining rings are movably embedded in the groove. When the two semi-circular retaining rings are fixed in the groove by the retaining spring, the semi-circular retaining rings push the sleeve against the bottom door pin.

[0009] Optionally, the bottom door includes:

[0010] The door panel has a left door frame and a right door frame at its outer ends. The outer side of the door panel has a lower door frame, a first bottom door beam and a second bottom door beam arranged from low to high. The left door frame and the right door frame are respectively connected to the two ends of the lower door frame, the first bottom door beam and the second bottom door beam.

[0011] The upper door frame is located at the top of the door panel;

[0012] Multiple uprights are evenly arranged on the outside of the door panel. The uprights are arranged vertically and are welded between the upper door frame, the second bottom door beam, the first bottom door beam, and the lower door frame.

[0013] Optionally, the thickness of the first bottom door beam is greater than the thickness of the left and right vertical door frames, and vertical door frame reinforcing angle irons are welded to the connection points of the two ends of the first bottom door beam with the left and right vertical door frames, respectively.

[0014] Optionally, the left and right door frames are cold-formed channel steel structures, the first bottom door beam is a rectangular hollow steel pipe, and the upper door frame, the second bottom door beam, and the lower door frame are cold-formed angle steel.

[0015] Optionally, the baffle is welded to the inner side of the door panel, and a blocking plate is provided at the weld joint between the baffle and the door panel. The bottom door pin is located within the shielding area of ​​the baffle.

[0016] Optionally, the bottom door pin is located in the area between the first bottom door crossbeam and the second bottom door crossbeam.

[0017] Optionally, the end of the bottom door pin away from the sleeve is L-shaped, and the bottom door pin is wrapped and welded to the outer surfaces of the left and right vertical door frames.

[0018] Optionally, the bottom door hinge includes an L-shaped connecting portion, the flat plate of the connecting portion is welded to the upper door frame, and the vertical plate of the connecting portion is welded to the outer side of the door panel.

[0019] Optionally, the baffle is fan-shaped.

[0020] This utility model also provides a funnel cart, including the aforementioned funnel cart bottom door structure.

[0021] This utility model provides a bottom door structure for a hopper cart and a hopper cart, the advantages of which are:

[0022] 1. The bottom door structure is equipped with baffles on both sides of the bottom door, which can effectively prevent coal from leaking into the bottom door pins and lock bodies on both sides when the bottom door is opened, reduce the wear of the bottom door pins and lock bodies, and ensure that the bottom door opens and closes flexibly.

[0023] 2. The bottom door hinge in this bottom door structure adopts a large hinge, with its height increased from 30mm to over 55mm and its width increased from 80mm to over 100mm. At the same time, the welding of the bottom door hinge to the upper door frame is changed to welding the bottom door hinge to the upper door frame and the door panel, which increases the connection rigidity of the bottom door hinge and reduces the phenomenon of bottom door hinge weld cracking during use.

[0024] 3. The bottom door structure improves the assembly structure of the bottom door pin collar by increasing the width and depth of the slot and adding two semi-circular retaining rings. The retaining rings are fixed in the circular groove of the bottom door pin by elastic retaining rings, so that the retaining rings bear the axial force of the collar during use.

[0025] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0026] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0027] Figure 1 A schematic diagram of a funnel cart bottom door structure according to an embodiment of the present invention is shown.

[0028] Figure 2 It shows Figure 1 AA sectional view.

[0029] Figure 3 It shows Figure 1 BB cross-sectional view.

[0030] Figure 4 A schematic diagram of the bottom door pin according to an embodiment of the present invention is shown.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Left vertical door frame; 2. Lower door frame; 3. First bottom door crossbeam; 4. Second bottom door crossbeam; 5. Post; 6. Door panel; 7. Reinforcing angle iron of vertical door frame; 8. Bottom door hinge; 9. Upper door frame; 10. Bottom door pin; 11. Sleeve; 12. Right vertical door frame; 13. Baffle; 14. Semi-circular retaining ring; 15. Blocking plate; 16. Slot. Detailed Implementation

[0033] Preferred embodiments of the present invention will now be described in more detail. While preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0034] This utility model provides a funnel cart bottom door structure, including:

[0035] The bottom door has baffles at both ends along the horizontal direction on its inner side, and the baffles are perpendicular to the bottom door.

[0036] Multiple bottom door hinges are evenly distributed at the top of the bottom door, with the height of the bottom door hinges not less than 55mm and the width not less than 100mm.

[0037] Two bottom door pins are respectively set at both ends of the bottom door. The bottom door pins near the sleeve have a groove along the circumference. Two semi-ring retaining rings are movably embedded in the groove. When the two semi-ring retaining rings are fixed in the groove by the retaining spring, the semi-ring retaining rings push the sleeve against the bottom door pin.

[0038] Specifically, the bottom door structure features baffles on both sides of the bottom door. This prevents coal from overflowing from the sides of the bottom door into the space between the bottom door pin and the lock body during coal unloading, thus preventing wear and deformation of the bottom door pin during opening and closing. Additionally, the bottom door hinges are replaced with larger hinges, increasing their load-bearing capacity and preventing fatigue damage. Furthermore, two easily removable semi-circular retaining rings are installed in the bottom door pin's groove. When the sleeve needs to be fixed to the bottom door pin, the two semi-circular retaining rings can be installed in the groove and then secured in place by a retaining spring. This ensures the sleeve remains firmly against the bottom door pin, preventing it from being lost.

[0039] In addition, the height of the bottom door hinge should be set to be greater than 55mm. This height refers to the length of the bottom door hinge connecting part that fits against the door panel. It is necessary to ensure that the welding length between the connecting part and the door panel is greater than 55mm. The width of the bottom door hinge should be set to be greater than 100mm. This width refers to the horizontal width of the bottom door hinge connecting part. It is necessary to ensure that the welding length between the connecting part and the door panel and the upper door frame is greater than 100mm.

[0040] Optionally, the bottom door includes:

[0041] The door panel has a left door frame and a right door frame at its outer ends. The outer side of the door panel has a lower door frame, a first bottom door beam and a second bottom door beam arranged from low to high. The left door frame and the right door frame are connected to the two ends of the lower door frame, the first bottom door beam and the second bottom door beam, respectively.

[0042] The upper door frame is located at the top of the door panel;

[0043] Multiple uprights are evenly distributed on the outside of the door panel. The uprights are arranged vertically and are welded between the upper door frame, the second bottom door beam, the first bottom door beam, and the lower door frame.

[0044] Specifically, the bottom door uses a single steel plate as the door panel, with a thickness of 5mm. On the outer side of the door panel, upper and lower door frames, a bottom door crossbeam, and left and right vertical door frames are installed in the horizontal and vertical directions, respectively. In addition, columns are installed between the upper and lower door frames and the bottom door crossbeam to improve the overall strength of the door panel.

[0045] Optionally, the thickness of the first bottom door beam is greater than the thickness of the left and right vertical door frames, and vertical door frame reinforcing angle irons are welded to the connection points of the two ends of the first bottom door beam with the left and right vertical door frames, respectively.

[0046] Specifically, reinforcing angle irons for the vertical door frames are added at the welding points of the first bottom door crossbeam and the left and right vertical door frames. This allows the horizontal and vertical frames of the bottom door to be connected as a whole. The horizontal connecting surface of the reinforcing angle irons for the vertical door frames is welded to the first bottom door crossbeam, and the vertical connecting surface of the reinforcing angle irons for the vertical door frames is welded to the two vertical door frames, thereby increasing the connection stability of the bottom door at the intersection of the horizontal and vertical dimensions.

[0047] Optionally, the left and right door frames are made of cold-formed channel steel, the first bottom door beam is made of rectangular hollow steel pipe, and the upper door frame, the second bottom door beam, and the lower door frame are made of cold-formed angle steel.

[0048] Specifically, the two door frames are formed by bending cold-formed channel steel, with one end closed. The first bottom door beam is made of cold-formed rectangular hollow steel pipe, with both ends bent and sealed.

[0049] Optionally, the baffle is welded to the inner side of the door panel, and a blocking plate is provided at the weld joint between the baffle and the door panel. The bottom door pin is located within the shielding area of ​​the baffle.

[0050] Optionally, the baffle is fan-shaped.

[0051] Specifically, the baffle adopts a fan-shaped structure, which can achieve the same effect as coal while reducing the area and weight of the baffle; the fan-shaped baffle is installed on both sides of the bottom door plate, and a blocking plate is added at the welding point between the fan-shaped baffle and the door plate; when the bottom door is opened, the fan-shaped baffle blocks the gap between the bottom door and the funnel end plate, preventing coal from overflowing and flowing between the bottom door pin and the lock body.

[0052] Optionally, the bottom door pin is positioned in the area between the first bottom door crossbeam and the second bottom door crossbeam.

[0053] Optionally, the end of the bottom door pin furthest from the sleeve is L-shaped, and the bottom door pin is welded to the outer surface of the left and right vertical door frames.

[0054] Specifically, the bottom door pin is set between the two bottom door crossbeams, which can improve the support strength of the bottom door area where the bottom door pin is installed, and the bottom door pin is connected to the left and right vertical door frames through two mutually perpendicular planes, which can improve the welding strength of the bottom door pin.

[0055] Optionally, the bottom door hinge includes an L-shaped connecting part, the flat plate of which is welded to the upper door frame, and the vertical plate of which is welded to the outer side of the door panel.

[0056] Specifically, the large-sized bottom door hinges are connected to the upper door frame and door panel respectively through connecting parts. This can increase the connection rigidity of the bottom door hinges and prevent the weld seams of the bottom door hinges from opening.

[0057] This utility model also provides a funnel cart, including the aforementioned funnel cart bottom door structure.

[0058] Example

[0059] like Figures 1 to 4 As shown, this utility model provides a funnel cart bottom door structure, including:

[0060] The bottom door has baffles at both ends along the horizontal direction on its inner side, and the baffles 13 are perpendicular to the bottom door.

[0061] Multiple bottom door hinges 8 are evenly arranged at the top of the bottom door, and the height of the bottom door hinges 8 is not less than 55mm and the width is not less than 100mm;

[0062] Two bottom door pins 10 are respectively set at both ends of the bottom door. The bottom door pin 10 near the sleeve 11 has a groove 16 along the circumference. Two semi-ring retaining rings 14 are movably embedded in the groove 16. When the two semi-ring retaining rings 14 are fixed in the groove 16 by the retaining ring, the semi-ring retaining rings 14 push the sleeve 11 against the bottom door pin 10.

[0063] In this embodiment, the bottom door includes:

[0064] The door panel 6 has a left vertical door frame 1 and a right vertical door frame 12 at its outer ends. The outer side of the door panel 6 is provided with a lower door frame 2, a first bottom door beam 3 and a second bottom door beam 4 from low to high. The left vertical door frame 1 and the right vertical door frame 2 are connected to the two ends of the lower door frame 2, the first bottom door beam 3 and the second bottom door beam 4 respectively.

[0065] The upper door frame 9 is located at the top of the door panel 6;

[0066] Multiple uprights 5 are evenly arranged on the outside of the door panel 6. The uprights 5 are arranged vertically and are welded between the upper door frame 9, the second bottom door beam 4, the first bottom door beam 3 and the lower door frame 2.

[0067] In this embodiment, the thickness of the first bottom door beam 3 is higher than the thickness of the left vertical door frame 1 and the right vertical door frame 12. The two ends of the first bottom door beam 3 are respectively welded with vertical door frame reinforcing angle irons 7 at the connection points with the left vertical door frame 1 and the right vertical door frame 12.

[0068] In this embodiment, the left door frame 1 and the right door frame 12 are cold-formed channel steel structures, the first bottom door beam 3 is a rectangular hollow steel pipe, and the upper door frame 9, the second bottom door beam 4 and the lower door frame 2 are cold-formed angle steel.

[0069] In this embodiment, the baffle 13 is welded to the inner side of the door panel 6, and a blocking plate 15 is also provided at the weld between the baffle 13 and the door panel 6. The bottom door pin 10 is located in the shielding area of ​​the baffle 13.

[0070] In this embodiment, the bottom door pin 10 is located in the area between the first bottom door crossbeam 3 and the second bottom door crossbeam 4.

[0071] In this embodiment, the end of the bottom door pin 10 away from the sleeve 11 is L-shaped, and the bottom door pin 10 is wrapped and welded to the outer surface of the left vertical door frame 1 and the right vertical door frame 12.

[0072] In this embodiment, the bottom door hinge 8 includes an L-shaped connecting part, the flat plate of the connecting part is welded to the upper door frame 9, and the vertical plate of the connecting part is welded to the outer side of the door panel 6.

[0073] In this embodiment, the baffle 13 is fan-shaped.

[0074] This utility model also provides a funnel cart, including the aforementioned funnel cart bottom door structure.

[0075] In summary, this bottom door structure, by setting fan-shaped baffles 13 on both sides of the door panel 6, can block coal from entering between the bottom door pin 10 and the lock body during coal unloading, preventing coal residue around the bottom door pin 10 from affecting the opening and closing flexibility and locking reliability of the bottom door. The original bottom door hinge is replaced with a bottom door hinge with a height greater than 55mm and a width greater than 100mm, and the bottom door hinge 8 is welded to the door frame through two mutually perpendicular welding surfaces, which can effectively avoid the problem of weld seam opening. Finally, two annular retaining rings 14 are installed in the slot 16 of the bottom door pin 10. When it is necessary to fix the sleeve 11 to the bottom door pin 10, the two annular retaining rings 14 are engaged and fixed in the slot 16 by a retaining spring. In this way, the annular retaining rings 14 abut against and fix the sleeve 11 through the part protruding from the slot 16, so that the sleeve is always in contact with the corner position of the bottom door pin 10.

[0076] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A hopper car bottom door structure, characterized in that: include: The bottom door has baffles at both ends of the inner side in the horizontal direction, and the baffles are perpendicular to the bottom door; A plurality of bottom door hinges are evenly arranged at the top of the bottom door, and the height of the bottom door hinges is not less than 55 mm and the width is not less than 100 mm; Two bottom door pins are respectively arranged at the two ends of the bottom door. A groove is circumferentially provided at one end of the bottom door pin close to the sleeve. Two half-ring retaining rings are movably embedded in the groove. When the two half-ring retaining rings are fixed in the groove by retaining springs, the half-ring retaining rings press the sleeve against the bottom door pin.

2. The hopper car bottom door structure according to claim 1, characterized in that: The bottom door comprises: The door panel has a left vertical door frame and a right vertical door frame at both ends of the outer side, and the outer side of the door panel is provided with a lower door frame, a first bottom door beam and a second bottom door beam in order from low to high, and the left vertical door frame and the right vertical door frame are connected to the two ends of the lower door frame, the first bottom door beam and the second bottom door beam respectively; An upper door frame, arranged on the top of the door panel; A plurality of columns are evenly arranged on the outer side of the door panel, the columns are arranged along the vertical direction, and the columns are welded between the upper door frame, the second bottom door beam, the first bottom door beam and the lower door frame.

3. The hopper car bottom door structure according to claim 2, characterized in that: The thickness of the first bottom door cross beam is higher than that of the left vertical door frame and the right vertical door frame, and vertical door frame reinforcement angle irons are respectively welded to the connection places between the two ends of the first bottom door cross beam and the left vertical door frame and the right vertical door frame.

4. The hopper car bottom door structure according to claim 3, characterized in that: The left vertical door frame and the right vertical door frame are cold-bent channel steel structures, the first bottom door cross beam is a rectangular hollow steel pipe, and the upper door frame, the second bottom door cross beam and the lower door frame are cold-bent angle steels.

5. The hopper car bottom door structure according to claim 2, characterized in that: The baffle is connected to the inner side of the door panel by welding, and a blocking plate is also provided at the welding point between the baffle and the door panel. The bottom door pin is located within the shielding area of ​​the baffle.

6. The hopper car bottom door structure according to claim 5, characterized in that: The bottom door pin is arranged in a region between the first bottom door cross beam and the second bottom door cross beam.

7. The hopper car bottom door structure according to claim 6, characterized in that: The end of the bottom door pin away from the sleeve is L-shaped, and the bottom door pin is wrapped and welded on the outer surfaces of the left vertical door frame and the right vertical door frame.

8. The hopper car bottom door structure according to claim 2, characterized in that: The bottom door hinge comprises an L-shaped connecting portion, a flat plate of the connecting portion is welded to the upper door frame, and a vertical plate of the connecting portion is welded to the outer side of the door panel.

9. The hopper car bottom door structure according to claim 1, characterized in that: The baffle is fan-shaped.

10. A hopper car, characterized in that: It comprises the hopper car bottom door structure according to any one of claims 1-9.

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