Anti-clamping device for bottom door of hopper car

Abstract

The present invention discloses a hopper car bottom door anti-clamping device, comprising a first control component, a first transmission component, a second control component, a second transmission component, a first bottom door, a second bottom door and a car body, wherein the first control component drives the first transmission component to work, the first transmission component is configured to pass through the car body and is connected to the car body; the second control component drives the second transmission component to work, the second transmission component is configured to pass through the car body and is connected to the car body; the first bottom door and the second bottom door are arranged in the car body, the first bottom door is connected to the first transmission component and is opened or closed under the drive of the first transmission component, and the second bottom door is connected to the second transmission component and is opened or closed under the drive of the second transmission component. The present invention uses the first bottom door and the second bottom door to effectively avoid ballast clamping and the resulting ballast leakage, avoid safety hazards such as vehicle derailment, improve work efficiency, and avoid more ballast flowing out and causing waste.

Description

Technical Field

[0001] The present invention relates to the technical field of railway vehicles, and more particularly to a material clamping prevention device for a bottom door of a hopper car. Background Art

[0002] Hopper cars are a common type of railway transport vehicle and are widely used in the transportation of bulk goods such as minerals, grains, and chemical raw materials. Among them, ballast hopper cars are a special railway truck, which are mainly used to lay ballast during railway construction and maintenance, and unload the transported ballast by opening the bottom door. When the demand for ballast on certain sections is small, it is necessary to unload a part of the ballast first and then close the bottom door. When the ballast hopper car runs to other designated sections, the bottom door will be opened to unload the ballast.

[0003] When the ballast hopper car needs to close the bottom door after unloading a part of the ballast, ballast is still flowing out of the car, so the bottom door is often clamped by the ballast continuously flowing out of the car, making it impossible to close the bottom door completely. If the ballast leaks onto special devices such as switches, it is easy to cause the vehicle to derail, thus causing a safety accident.

[0004] At present, most of them adopt the method of repeatedly opening and closing the bottom door to close the bottom door tightly. However, this method requires repeatedly opening and closing the bottom door, which is time-consuming and labor-intensive, has poor reliability, and is prone to causing more ballast to flow out during the repeated opening and closing of the bottom door, thereby wasting ballast. Summary of the invention

[0005] The purpose of the present invention is to provide a hopper car bottom door anti-clamping device, which can effectively solve the material clamping problem when the hopper car closes the bottom door, improve work efficiency, and avoid material leakage and safety hazards such as vehicle derailment caused by material leakage.

[0006] To achieve the above-mentioned object, the present invention provides a hopper car bottom door anti-clamping device, comprising a first control component, a first transmission component, a second control component, a second transmission component, a first bottom door, a second bottom door and a car body, wherein:

[0007] The first control component drives the first transmission component to work, and the first transmission component is configured to pass through the vehicle body and be movably connected to the vehicle body;

[0008] The second control component drives the second transmission component to work, and the second transmission component is configured to pass through the vehicle body and be movably connected to the vehicle body;

[0009] The first bottom door and the second bottom door are arranged in the vehicle body, the first bottom door is connected to the first transmission component and is opened or closed under the drive of the first transmission component, the second bottom door is connected to the second transmission component and is opened or closed under the drive of the second transmission component, the first bottom door and the vehicle body form a first accommodating space, the second bottom door and the vehicle body form a second accommodating space, the first accommodating space includes at least part of the second accommodating space or the first accommodating space and the second accommodating space are isolated from each other.

[0010] Furthermore, the first transmission component includes a first rotating shaft, a first connecting part and a second rotating shaft which are connected in sequence, the first rotating shaft and the second rotating shaft are arranged in parallel, the first control component drives the first rotating shaft to perform an axial rotation movement, the first connecting part transmits to drive the second rotating shaft to perform an axial rotation movement, the second rotating shaft passes through the vehicle body and is movably connected to the vehicle body, and the first bottom door is fixedly connected to the second rotating shaft.

[0011] Furthermore, the second transmission component includes a third rotating shaft, a second connecting part and a fourth rotating shaft connected in sequence, the third rotating shaft is arranged in parallel with the fourth rotating shaft, the second control component drives the third rotating shaft to perform an axial rotation movement, the second connecting part transmits to drive the fourth rotating shaft to perform an axial rotation movement, the fourth rotating shaft passes through the vehicle body and is movably connected to the vehicle body, and the second bottom door is fixedly connected to the fourth rotating shaft.

[0012] Furthermore, the first rotating shaft and the fourth rotating shaft adopt a hollow shaft structure, and the second rotating shaft and the third rotating shaft adopt a solid shaft structure; the third rotating shaft is configured to pass through the first rotating shaft, and its two ends respectively extend from the first rotating shaft, and the third rotating shaft is movably connected to the first rotating shaft; the second rotating shaft is configured to pass through the fourth rotating shaft, and its two ends respectively extend from the fourth rotating shaft, and the second rotating shaft is movably connected to the fourth rotating shaft; the first bottom door is arranged on the second rotating shaft, and the two ends of the first bottom door are respectively connected to the side wall of the vehicle body; the second bottom door is arranged on the fourth rotating shaft, and the two ends of the second bottom door are respectively connected to the side wall of the vehicle body.

[0013] Furthermore, it also includes a connecting flange, a first bottom door crank and a first connecting rod. The fourth rotating shaft is divided into two sections and is respectively fixed on both sides of the connecting flange. An accommodating cavity is opened on the connecting flange, and the accommodating cavity is located between the two sections of the fourth rotating shaft. The second rotating shaft passes through the accommodating cavity. The first bottom door crank is placed in the accommodating cavity and is fixed to the second rotating shaft. The two ends of the first connecting rod are respectively rotatably connected to the first bottom door crank and one end of the first bottom door, and the other end of the first bottom door is connected to the protruding end of the second rotating shaft.

[0014] Furthermore, it also includes a folding pin and a folding seat, the folding seat is fixed on the side wall of the vehicle body, the folding seat is provided with adjacent first and second cavities, the end of the first bottom door and the end of the second bottom door are respectively placed in the first and second cavities, and the folding pin passes through the folding seat, the first bottom door and the second bottom door.

[0015] Furthermore, a first rotating connecting member is provided inside the first rotating shaft, the third rotating shaft is sleeved in the first rotating connecting member, and the two ends of the third rotating shaft respectively extend from the first rotating shaft, and a second rotating connecting member is provided inside the fourth rotating shaft, the second rotating shaft is sleeved in the second rotating connecting member, and the two ends of the second rotating shaft respectively extend from the fourth rotating shaft.

[0016] Further, the first connecting part includes a first crank, a first pull rod and a second crank which are rotatably connected in sequence, the first crank is sleeved on the first rotating shaft and fixedly connected to the first rotating shaft, and the second crank is sleeved on the second rotating shaft and fixedly connected to the second rotating shaft;

[0017] and / or,

[0018] The second connecting part includes a third crank, a second pull rod and a fourth crank which are rotatably connected in sequence. The third crank is sleeved on the third rotating shaft and fixedly connected to the third rotating shaft. The fourth crank is sleeved on the fourth rotating shaft and fixedly connected to the fourth rotating shaft.

[0019] Further, the first control component includes a first cylinder and a first swing block, one end of the first swing block is rotatably connected to the first cylinder, and the other end of the first swing block is sleeved on the first rotating shaft and fixedly connected to the first rotating shaft; or, the first control component is a first handle, and the first handle is fixedly connected to the first rotating shaft;

[0020] and / or,

[0021] The second control component includes a second cylinder and a second pendulum block, one end of the second pendulum block is rotationally connected to the second cylinder, and the other end of the second pendulum block is sleeved on the third rotating shaft and fixedly connected to the third rotating shaft; or, the second control component is a second handle, and the second handle is fixedly connected to the third rotating shaft.

[0022] Further, the first bottom door is relatively located between the second bottom door and the inner wall of the vehicle body; or, the first bottom door is relatively located between the inner wall of the vehicle body and the second rotating shaft, the second bottom door is relatively located between the inner wall of the vehicle body and the fourth rotating shaft, the first bottom door and the second bottom door are arranged side by side, and the ends of the two are adjacent.

[0023] The beneficial effects of the present invention are:

[0024] By arranging two bottom doors, the ballast inside the vehicle body can be doubly blocked in the overlapping area of ​​the two bottom doors to avoid leakage caused by the bottom doors being unable to be closed tightly after unloading, or the ballast inside the vehicle body can be separated by mutually isolated accommodating spaces, and the ballast can be unloaded separately according to the required unloading amount, thereby avoiding leakage caused by a large amount of ballast in the accommodating space when the bottom door clamps the ballast. While effectively avoiding the ballast clamping by the bottom door, the work efficiency is improved, the safety hazards such as vehicle derailment caused by leakage are avoided, the safety performance of the vehicle is improved, and the outflow of a large amount of ballast and the waste caused can be avoided. In addition, the opening or closing of the first bottom door and the second bottom door are respectively controlled by the first control component and the second control component, so that the first bottom door and the second bottom door are opened and closed independently, thereby avoiding the interference between the opening and closing action of the first bottom door and the opening and closing action of the second bottom door, that is, when one bottom door clamps the ballast, it does not affect the opening and closing of the other bottom door.

[0025] Furthermore, the first rotating shaft is sleeved on the third rotating shaft, and the fourth rotating shaft is sleeved on the second rotating shaft, so as to realize the coaxial rotation of the first bottom door and the second bottom door, so as to save space; in addition, due to the coaxial rotation of the first bottom door and the second bottom door, that is, the second rotating shaft is sleeved in the fourth rotating shaft, the fourth rotating shaft needs to be connected in sections, that is, the fourth rotating shaft is divided into two sections to expose the second rotating shaft therein, so as to facilitate the connection of the second rotating shaft with the first bottom door, and then facilitate the second rotating shaft to drive the first bottom door to rotate to realize the opening and closing of the first bottom door.

[0026] Furthermore, by setting the first rotating connecting member, after the third rotating shaft is sleeved in the first rotating shaft, the third rotating shaft can rotate smoothly in the first rotating connecting member without affecting the rotation of the first rotating shaft. After the second rotating shaft is sleeved in the fourth rotating shaft, similarly, the second rotating connecting member can make the second rotating shaft and the fourth rotating shaft not interfere with each other during movement, thereby realizing the control of the opening or closing of the first bottom door and the second bottom door respectively.

[0027] Furthermore, the first bottom door and the second bottom door are rotatably connected to the side wall of the vehicle body by using the same hinge seat and hinge pin to improve the stability of the first bottom door and the second bottom door during movement.

[0028] Other features and advantages of the present invention will be described in detail in the following detailed description.

[0029] The device of the present invention has other characteristics and advantages, which will be obvious from the drawings incorporated herein and the following detailed description, or will be described in detail in the drawings incorporated herein and the following detailed description, which together are used to explain the specific principles of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, in which like reference numerals generally represent like components.

[0031] Figure 1 A schematic structural diagram of a hopper car bottom door anti-pinch device provided by an embodiment of the present invention is shown;

[0032] Figure 2 Shows Figure 1 A schematic diagram of the connection structure between the first bottom door end and the second rotating shaft, and between the second bottom door end and the fourth rotating shaft;

[0033] Figure 3 Shows Figure 1 A schematic diagram of the connection structure between the connecting flange, the fourth rotating shaft and the first bottom door is shown;

[0034] Figure 4 Shows Figure 1 Schematic diagram of the connection structure between the first rotating shaft and the second rotating shaft.

[0035] Description of reference numerals:

[0036] 1. First control assembly; 11. First cylinder; 12. First pendulum block; 2. First transmission assembly; 21. First rotating shaft; 22. First connecting part; 221. First crank; 222. First pull rod; 223. Second crank; 23. Second rotating shaft; 3. Second control assembly; 4. Second transmission assembly; 41. Third rotating shaft; 42. Second connecting part; 421. Third crank; 422. Second pull rod; 423. Fourth crank; 43. Fourth rotating shaft; 5. First bottom door; 6. Second bottom door; 7. Car body; 81. Connecting flange; 811. Accommodating cavity; 82. First bottom door crank; 83. First connecting rod; 84. Second bottom door crank; 85. Second connecting rod; 86. Folding pin; 87. Folding seat; 871. First cavity; 872. Second cavity; 88. First rotating connecting member. DETAILED DESCRIPTION

[0037] The present invention will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, 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.

[0038] The following is a further detailed description of the wedge insert mechanism, punching device and punching method of the present invention in combination with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer according to the following description and drawings. However, it should be noted that the concept of the technical solution of the present invention can be implemented in a variety of different forms and is not limited to the specific embodiments described herein. The drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0039] When closing the bottom door after unloading ballast, it is necessary to prevent the bottom door from clamping ballast to avoid ballast leakage and safety accidents. The current method of repeatedly opening and closing the bottom door has the disadvantages of being time-consuming, labor-intensive, and unreliable. In addition, during the repeated opening and closing of the bottom door, more ballast is easily discharged, wasting ballast.

[0040] The present invention aims to solve the problem of ballast clamping in the process of ballast transportation by hopper cars, and provides a hopper car anti-clamping device, which can effectively prevent ballast clamping when the bottom door of the hopper car is closed, improve work efficiency, avoid ballast leakage, and thus avoid safety accidents. Figure 1-4 The structure of the anti-clamping device of the hopper car is explained with examples.

[0041] The hopper car bottom door anti-clamping device comprises a first control component 1, a first transmission component 2, a second control component 3, a second transmission component 4, a first bottom door 5, a second bottom door 6 and a car body 7, wherein:

[0042] The first control component 1 drives the first transmission component 2 to work, and the first transmission component 2 is configured to pass through the vehicle body 7 and be movably connected to the vehicle body 7;

[0043] The second control component 3 drives the second transmission component 4 to work, and the second transmission component 4 is configured to pass through the vehicle body 7 and is movably connected to the vehicle body 7;

[0044] The first bottom door 5 and the second bottom door 6 are arranged in the vehicle body 7, the first bottom door 5 and the vehicle body 7 enclose a first accommodating space, the second bottom door 6 and the vehicle body 7 enclose a second accommodating space, the first accommodating space includes at least part of the second accommodating space or the first accommodating space and the second accommodating space are isolated from each other, the first bottom door 5 is connected to the first transmission component 2 and is opened or closed by the first transmission component 2, and the second bottom door 6 is connected to the second transmission component 4 and is opened or closed by the second transmission component 4.

[0045] In this embodiment, the first transmission component 2 includes a first rotating shaft 21, a first connecting portion 22 and a second rotating shaft 23 which are connected in sequence. The first rotating shaft 21 and the second rotating shaft 23 are arranged in parallel. The first control component 1 drives the first rotating shaft 21 to perform an axial rotation movement. The first connecting portion 22 is transmitted to drive the second rotating shaft 23 to perform an axial rotation movement. The second rotating shaft 23 passes through the vehicle body 7 and is movably connected to the vehicle body 7. The first bottom door 5 is fixedly connected to the second rotating shaft 23.

[0046] It should be noted that the first accommodating space is a space enclosed by the first bottom door 5 and the vehicle body 7 for accommodating ballast, and the second accommodating space is a space enclosed by the second bottom door 6 and the vehicle body 7 for accommodating ballast.

[0047] In a possible implementation, the first accommodation space includes at least part of the second accommodation space, and at this time, the first bottom door 5 is relatively located between the second bottom door 6 and the inner wall of the vehicle body 7, the first bottom door 5 is arranged parallel to the second bottom door 6, and the projections of the first bottom door 5 and the second bottom door 6 on a plane parallel to the first bottom door 5 and the second bottom door 6 at least partially overlap. When the above projections completely overlap, the leakage prevention effect is best.

[0048] Specifically, the number of the first bottom door 5 is at least one; and / or, the number of the second bottom door 6 is at least one. The plurality of first bottom doors 5 and the plurality of second bottom doors 6 are arranged alternately, that is, arranged in the order of the first bottom door 5, the second bottom door 6, the first bottom door 5, etc.; or, after the plurality of first bottom doors 5 are arranged in parallel, the plurality of second bottom doors 6 are arranged adjacent to the first bottom door 5 in parallel, that is, arranged in the order of the first bottom door 5, the first bottom door 5, etc., the second bottom door 6, the second bottom door 6, etc. It should be noted that the connection structure of the first control component 1, the first bottom door 5, the second control component 3 and the second bottom door 6 refers to the above embodiment, and will not be repeated here.

[0049] In order to facilitate the first control component 1 to drive the first rotating shaft 21 to rotate, the first control component 1 includes a first cylinder 11 and a first pendulum 12. One end of the first pendulum 12 is rotatably connected to the first cylinder 11, and the other end of the first pendulum 12 is sleeved on the first rotating shaft 21 and fixedly connected to the first rotating shaft 21. Specifically, the telescopic rod of the first cylinder 11 is a U-shaped structure and first through holes are respectively provided on both sides of the U-shape. One end of the first pendulum 12 is provided with a second through hole. The end of the first pendulum 12 is arranged between the two sides of the U-shape, and the first pin shaft passes through the first through hole and the second through hole, so that the first pendulum 12 can rotate relative to the first cylinder 11. A third through hole is provided on the other end of the first pendulum 12 to facilitate sleeved on the first rotating shaft 21. The first pendulum 12 is fixedly connected to the first rotating shaft 21.

[0050] It should be noted that the first pendulum block 12 and the first rotating shaft 21 can be fixed in a manner known to those skilled in the art. For example, the first pendulum block 12 and the first rotating shaft 21 can be fixed in a manner of a locating pin, that is, a locating hole is provided on the first pendulum block 12 and the first rotating shaft 21 respectively, and the two are coaxial, and the locating pin is inserted into the locating hole of the first pendulum block 12 and the locating hole of the first rotating shaft 21. For another example, the first pendulum block 12 and the first rotating shaft 21 can be fixed by the cooperation of a keyway and a key, that is, a keyway is provided on the first pendulum block 12 and the first rotating shaft 21, and the key is inserted into the keyway of the first pendulum block 12 and the keyway of the first rotating shaft 21 to fix the first pendulum block 12 and the first rotating shaft 21. When the first cylinder 11 starts working, its telescopic rod performs a transverse reciprocating motion, thereby driving the pendulum block to swing, and then driving the first rotating shaft 21 to perform an axial rotation motion. In other embodiments, the first control component 1 can be a first handle, and the first handle is fixedly connected to the first rotating shaft 21.

[0051] In this embodiment, the first connecting part 22 includes a first crank 221, a first pull rod 222, and a second crank 223 which are connected in rotation in sequence. The first crank 221 is sleeved on the first rotating shaft 21 and fixedly connected to the first rotating shaft 21, and the second crank 223 is sleeved on the second rotating shaft 23 and fixedly connected to the second rotating shaft 23. It should be noted that the rotation connection can be a pin connection method or a hinge method. When the first control component 1 drives the first rotating shaft 21 to rotate, the first crank 221 rotates with its connection end with the first rotating shaft 21 as the axis, thereby driving the first pull rod 222 to swing, and then driving the second crank 223 to move, and the second crank 223 rotates with its connection end with the second rotating shaft 23 as the axis, so that the second rotating shaft 23 rotates, thereby realizing the transmission between the first rotating shaft 21 and the second rotating shaft 23, thereby driving the first bottom door 5 to open or close.

[0052] Similarly, the second transmission component 4 includes a third rotating shaft 41, a second connecting portion 42 and a fourth rotating shaft 43 which are connected in sequence. The third rotating shaft 41 and the fourth rotating shaft 43 are arranged in parallel. The second control component 3 drives the third rotating shaft 41 to perform an axial rotation movement. The second connecting portion 42 is transmitted to drive the fourth rotating shaft 43 to perform an axial rotation movement. The fourth rotating shaft 43 passes through the vehicle body 7 and is movably connected to the vehicle body 7. The second bottom door 6 is fixedly connected to the fourth rotating shaft 43.

[0053] In order to facilitate the second control component 3 to drive the third rotating shaft 41 to rotate, the second control component 3 is a second handle, and the second handle is fixedly connected to the third rotating shaft 41. In actual operation, the second handle is turned to drive the third rotating shaft 41 to rotate. In other embodiments, the second control component 3 may include a second cylinder and a second pendulum block, one end of the second pendulum block is rotationally connected to the second cylinder, and the other end of the second pendulum block is sleeved on the third rotating shaft 41 and fixedly connected to the third rotating shaft 41. The connection structure of the second cylinder, the second pendulum block and the third rotating shaft 41 can refer to the connection method of the first cylinder 11, the first pendulum block 12 and the first rotating shaft 21 mentioned above, which will not be repeated here.

[0054] In this embodiment, the second connecting part 42 includes a third crank 421, a second pull rod 422 and a fourth crank 423 which are connected in rotation in sequence. The third crank 421 is sleeved on the third rotating shaft 41 and is fixedly connected to the third rotating shaft 41. The fourth crank 423 is sleeved on the fourth rotating shaft 43 and is fixedly connected to the fourth rotating shaft 43. When the second control component 3 drives the third rotating shaft 41 to rotate, the third crank 421 rotates with its connecting end with the third rotating shaft 41 as the axis, thereby driving the second pull rod 422 to swing, and then driving the fourth crank 423 to move. The fourth crank 423 rotates with its connecting end with the fourth rotating shaft 43 as the axis, thereby rotating the fourth rotating shaft 43, thereby realizing the transmission between the first rotating shaft 21 and the second rotating shaft 23, thereby driving the second bottom door 6 to open or close.

[0055] In this embodiment, the first control component 1 and the second control component 3 are coaxially arranged.

[0056] Specifically, the first rotating shaft 21 and the fourth rotating shaft 43 adopt a hollow shaft structure, and the second rotating shaft 23 and the third rotating shaft 41 adopt a solid shaft structure; or, the first rotating shaft 21 and the fourth rotating shaft 43 adopt a solid shaft structure, and the second rotating shaft 23 and the third rotating shaft 41 adopt a hollow shaft structure. In order to simplify the description, the following only takes the first rotating shaft 21 and the fourth rotating shaft 43 adopt a hollow shaft structure, and the second rotating shaft 23 and the third rotating shaft 41 adopt a solid shaft structure as an example to further describe the structure.

[0057] The third rotating shaft 41 is configured to pass through the first rotating shaft 21, and its two ends extend out from the first rotating shaft 21 respectively, and the third rotating shaft 41 is movably connected to the first rotating shaft 21; the second rotating shaft 23 is configured to pass through the fourth rotating shaft 43, and its two ends extend out from the fourth rotating shaft 43 respectively, and the second rotating shaft 23 is movably connected to the fourth rotating shaft 43; the first bottom door 5 is arranged on the second rotating shaft 23; the second bottom door 6 is arranged on the fourth rotating shaft 43.

[0058] In order to avoid the interference between the rotation of the third rotating shaft 41 and the rotation of the first rotating shaft 21, and to avoid the interference between the rotation of the second rotating shaft 23 and the rotation of the fourth rotating shaft 43, a first rotating connecting member 88 is provided inside the first rotating shaft 21, the third rotating shaft 41 is sleeved inside the first rotating connecting member 88, and the two ends of the third rotating shaft 41 extend out of the first rotating shaft 21 respectively, and a second rotating connecting member is provided inside the fourth rotating shaft 43, the second rotating shaft 23 is sleeved inside the second rotating connecting member, and the two ends of the second rotating shaft 23 extend out of the fourth rotating shaft 43 respectively. Specifically, there are two first rotating connecting members 88, which are respectively pressed onto the two ends inside the first rotating shaft 21, and there are two second rotating connecting members, which are respectively pressed onto the two ends inside the fourth rotating shaft 43. The first rotating connecting member 88 and / or the second rotating connecting member may be a rolling bearing; or the first rotating connecting member 88 and / or the second rotating connecting member may be a bushing, in which case the bushing acts as a sliding bearing.

[0059] In this embodiment, in order to prevent dust from entering the first bearing or the fourth bearing to affect the rotation of the third rotating shaft 41 and the second rotating shaft 23, thereby affecting the service life, the two ends of the first rotating shaft 21 can be sealed, for example, sealing rings are respectively provided at the two ends of the first rotating shaft 21, and the sealing rings can be felt sealing rings or O-type rubber sealing rings. The sealing rings are located on the side of the first rotating connector 88 close to the outside of the first rotating shaft 21. For another example, oil seals are respectively provided at the two ends of the first rotating shaft 21. Similarly, the two ends of the fourth rotating shaft 43 can also be sealed. The sealing method refers to the sealing method of the first rotating shaft 21, and will not be repeated here.

[0060] Since the second rotating shaft 23 is configured to pass through the fourth rotating shaft 43, in order to facilitate the fixing of the first bottom door 5 on the second rotating shaft 23, it also includes a connecting flange 81, a first bottom door crank 82 and a first connecting rod 83. The fourth rotating shaft 43 is divided into two sections, which are respectively fixed on both sides of the connecting flange 81. The connecting flange 81 is provided with a accommodating cavity 811, which is located between the two sections of the fourth rotating shaft 43 so that the second rotating shaft 23 can pass through the accommodating cavity 811. The first bottom door crank 82 is placed in the accommodating cavity 811 and is connected to the first bottom door 5. The second rotating shaft 23 is fixedly connected, and the two ends of the first connecting rod 83 are respectively rotatably connected to the first bottom door crank 82 and one end of the first bottom door 5. The other end of the first bottom door 5 can be connected to the extended end of the second rotating shaft 23 through another first bottom door crank 82 and another first connecting rod 83. The arrangement of the two first bottom door cranks 82 and the two first connecting rods 83 facilitates buffering protection of the first bottom door 5 when it is opened or closed, thereby preventing the first bottom door 5 from hitting the side wall of the vehicle body 7 and causing damage, and improving the stability of the first bottom door 5 during movement. It should be noted that the connecting flange 81 includes two flanges with bosses, and the flanges with bosses are L-shaped structures. The two flanges with bosses are arranged in a mirror image, so that the L-shaped cavities of the two flanges with bosses enclose a receiving cavity 811, and the two flanges with bosses are fixed by fasteners such as bolts or screws.

[0061] In other embodiments, both ends of the first bottom door 5 may also be fixed to the second rotating shaft 23 located in the accommodating cavity 811 and the protruding end of the second rotating shaft 23 , respectively.

[0062] Similarly, the second bottom door 6 can be connected to the fourth rotating shaft 43 through the second bottom door crank 84 and the second connecting rod 85. The second bottom door crank 84 is respectively sleeved on both ends of the fourth rotating shaft 43, and the second bottom door crank 84 is fixedly connected to the fourth rotating shaft 43. The two ends of a second connecting rod 85 are respectively rotatably connected to the second bottom door crank 84 and one end of the second bottom door 6. When the second bottom door 6 is opened or closed, the second bottom door crank 84 and the second connecting rod 85 can be used to buffer and protect the second bottom door 6, thereby preventing the second bottom door 6 from hitting the side wall of the vehicle body 7 and causing damage. In other embodiments, the two ends of the second bottom door 6 can also be directly fixed to the second rotating shaft 23.

[0063] In addition, in order to keep the first bottom door 5 and / or the second bottom door 6 stable during the process of opening or closing, the two ends of the first bottom door 5 are respectively connected to the side wall of the vehicle body 7 for rotation; and / or, the two ends of the second bottom door 6 are respectively connected to the side wall of the vehicle body 7 for rotation. When the ends of the first bottom door 5 and the second bottom door 6 are both connected to the side wall of the vehicle body 7 for rotation, the hopper car anti-clamping device further includes a hinge pin 86 and a hinge seat 87, the hinge seat 87 is fixed to the side wall of the vehicle body 7, and the hinge seat 87 is provided with adjacent first and second cavities 871 and 872, the ends of the first bottom door 5 and the ends of the second bottom door 6 are respectively placed in the first and second cavities 871 and 872, and the hinge pin 86 passes through the hinge seat 87, the first bottom door 5 and the second bottom door 6, so that the first bottom door 5 and the second bottom door 6 can rotate relative to the side wall of the vehicle body 7, and the rotation of the first bottom door 5 and the second bottom door 6 will not interfere with each other.

[0064] In other embodiments, the first transmission assembly 2 and the second transmission assembly 4 are parallel and have different axes. Specifically, the first rotating shaft 21 and the third rotating shaft 41 are parallel, the second rotating shaft 23 and the fourth rotating shaft 43 are parallel, the distance between the first rotating shaft 21 and the third rotating shaft 41 is the same as the distance between the second rotating shaft 23 and the fourth rotating shaft 43, and the height of the fourth rotating shaft 43 relative to the vehicle body 7 is lower than the height of the second rotating shaft 23 relative to the vehicle body 7.

[0065] In another possible implementation, the first accommodation space and the second accommodation space are isolated from each other. In this case, the first bottom door 5 is relatively located between the inner wall of the vehicle body 7 and the second rotating shaft 23, and the second bottom door 6 is relatively located between the inner wall of the vehicle body 7 and the fourth rotating shaft 43. The first bottom door 5 and the second bottom door 6 are arranged in parallel, and the ends of the two are adjacent. Specifically, the number of the first bottom door 5 is at least one; and / or the number of the second bottom door 6 is at least one. A plurality of first bottom doors 5 and a plurality of second bottom doors 6 are arranged in an interlaced manner to form a plurality of mutually isolated and interlaced first accommodation spaces and second accommodation spaces, that is, both sides of any first accommodation space are second accommodation spaces; or, after a plurality of first bottom doors 5 are arranged in parallel, a plurality of second bottom doors 6 are arranged in parallel adjacent to the first bottom door 5 to form a plurality of adjacently arranged and mutually isolated first accommodation spaces and second accommodation spaces, and the first accommodation space at the head end or the end is adjacently arranged and mutually isolated from the second accommodation space at the other head end or the end. It should be noted that the connection structure of the first control component 1, the first bottom door 5, the second control component 3 and the second bottom door 6 refers to the above embodiment, and will not be repeated here.

[0066] In summary, the hopper car bottom door anti-clamping device provided by the present invention is provided with two bottom doors so as to double-block the ballast inside the car body in the overlapping area of ​​the two bottom doors, so as to avoid the problem of material leakage caused by the inability to close the bottom door tightly after unloading, or to separate the ballast inside the car body through mutually isolated accommodating spaces, and unload the ballast separately according to the required unloading amount, thereby avoiding the problem of material leakage caused by a large amount of ballast in the accommodating space when the bottom door clamps the ballast, thereby effectively avoiding the bottom door clamping while improving work efficiency, avoiding safety hazards such as vehicle derailment caused by leakage, improving the safety performance of the vehicle, and avoiding the outflow of more ballast and causing waste; in addition, the first bottom door and the second bottom door are respectively controlled to open or close by the first control component and the second bottom door, so that the first bottom door and the second bottom door are opened and closed independently, thereby avoiding the interference between the opening and closing action of the first bottom door and the opening and closing action of the second bottom door, that is, when one bottom door clamps the ballast, it does not affect the opening and closing of the other bottom door.

[0067] Furthermore, the first rotating shaft is sleeved on the third rotating shaft, and the fourth rotating shaft is sleeved on the second rotating shaft, so as to realize the coaxial rotation of the first bottom door and the second bottom door, so as to save space; in addition, due to the coaxial rotation of the first bottom door and the second bottom door, that is, the second rotating shaft is sleeved in the fourth rotating shaft, the fourth rotating shaft needs to be connected in sections, that is, the fourth rotating shaft is divided into two sections to expose the second rotating shaft therein, so as to facilitate the connection of the second rotating shaft with the first bottom door, and then facilitate the second rotating shaft to drive the first bottom door to rotate to realize the opening and closing of the first bottom door.

[0068] Furthermore, by setting the first rotating connecting member, after the third rotating shaft is sleeved in the first rotating shaft, the third rotating shaft can rotate smoothly in the first rotating connecting member without affecting the rotation of the first rotating shaft. After the second rotating shaft is sleeved in the fourth rotating shaft, similarly, the second rotating connecting member can make the second rotating shaft and the fourth rotating shaft not interfere with each other during movement, thereby realizing the control of the opening or closing of the first bottom door and the second bottom door respectively.

[0069] Furthermore, the first bottom door and the second bottom door are rotatably connected to the side wall of the vehicle body by using the same hinge seat and hinge pin to improve the stability of the first bottom door and the second bottom door during movement.

[0070] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A device for preventing material from being clamped at the bottom door of a hopper car. It is characterized in that It includes a first control assembly, a first transmission assembly, a second control assembly, a second transmission assembly, a first bottom door, a second bottom door and a vehicle body, wherein: The first control component drives the first transmission component to work, and the first transmission component is configured to pass through the vehicle body and be movably connected to the vehicle body; The second control component drives the second transmission component to work, and the second transmission component is configured to pass through the vehicle body and be movably connected to the vehicle body; The first bottom door and the second bottom door are arranged in the vehicle body, the first bottom door and the vehicle body enclose a first accommodation space, the second bottom door and the vehicle body enclose a second accommodation space, the first accommodation space includes at least a part of the second accommodation space or the first accommodation space and the second accommodation space are isolated from each other, the first bottom door is connected to the first transmission assembly and is opened or closed under the drive of the first transmission assembly, the second bottom door is connected to the second transmission assembly and is opened or closed under the drive of the second transmission assembly, and the first bottom door and the second bottom door rotate coaxially; The first transmission assembly comprises a first rotating shaft, a first connecting portion and a second rotating shaft which are connected in sequence, the first rotating shaft and the second rotating shaft are arranged in parallel, the first control assembly drives the first rotating shaft to perform an axial rotation movement, the first connecting portion drives the second rotating shaft to perform an axial rotation movement, the second rotating shaft passes through the vehicle body and is movably connected to the vehicle body, and the first bottom door is fixedly connected to the second rotating shaft; The second transmission assembly comprises a third rotating shaft, a second connecting portion and a fourth rotating shaft which are connected in sequence, the third rotating shaft is arranged in parallel with the fourth rotating shaft, the second control assembly drives the third rotating shaft to perform an axial rotation movement, the second connecting portion drives to drive the fourth rotating shaft to perform an axial rotation movement, the fourth rotating shaft passes through the vehicle body and is movably connected to the vehicle body, and the second bottom door is fixedly connected to the fourth rotating shaft; The first rotating shaft and the fourth rotating shaft adopt a hollow shaft structure, and the second rotating shaft and the third rotating shaft adopt a solid shaft structure; The third rotating shaft is configured to pass through the first rotating shaft, and both ends thereof extend out from the first rotating shaft respectively, and the third rotating shaft is movably connected to the first rotating shaft; The second rotating shaft is configured to pass through the fourth rotating shaft, and both ends thereof extend out from the fourth rotating shaft respectively, and the second rotating shaft is movably connected to the fourth rotating shaft; The first bottom door is arranged on the second rotating shaft, and both ends of the first bottom door are respectively connected to the side walls of the vehicle body for rotation; The second bottom door is arranged on the fourth rotating shaft, and two ends of the second bottom door are respectively connected to the side walls of the vehicle body for rotation; The first connecting portion includes a first crank, a first pull rod and a second crank which are rotatably connected in sequence, the first crank is sleeved on the first rotating shaft and fixedly connected to the first rotating shaft, and the second crank is sleeved on the second rotating shaft and fixedly connected to the second rotating shaft.

2. The anti-clamping device for the bottom door of a hopper car according to claim 1, It is characterized in that It also includes a connecting flange, a first bottom door crank and a first connecting rod, the fourth rotating shaft is divided into two sections, which are respectively fixed on both sides of the connecting flange, the connecting flange is provided with a accommodating cavity, the accommodating cavity is located between the two sections of the fourth rotating shaft, the second rotating shaft passes through the accommodating cavity, the first bottom door crank is placed in the accommodating cavity and is fixed to the second rotating shaft, the two ends of the first connecting rod are respectively rotatably connected to the first bottom door crank and one end of the first bottom door, and the other end of the first bottom door is connected to the protruding end of the second rotating shaft.

3. The anti-clamping device for the bottom door of a hopper car according to claim 1, It is characterized in that It also includes a folding pin and a folding seat, the folding seat is fixed on the side wall of the vehicle body, the folding seat is provided with an adjacent first cavity and a second cavity, the end of the first bottom door and the end of the second bottom door are respectively placed in the first cavity and the second cavity, and the folding pin passes through the folding seat, the first bottom door and the second bottom door.

4. The anti-clamping device for the bottom door of a hopper car according to claim 1, It is characterized in that A first rotating connecting member is provided inside the first rotating shaft, the third rotating shaft is sleeved in the first rotating connecting member, and two ends of the third rotating shaft respectively extend from the first rotating shaft, a second rotating connecting member is provided inside the fourth rotating shaft, the second rotating shaft is sleeved in the second rotating connecting member, and two ends of the second rotating shaft respectively extend from the fourth rotating shaft.

5. The anti-clamping device for the bottom door of a hopper car according to claim 1, It is characterized in that The second connecting portion includes a third crank, a second pull rod and a fourth crank which are rotatably connected in sequence. The third crank is sleeved on the third rotating shaft and fixedly connected to the third rotating shaft. The fourth crank is sleeved on the fourth rotating shaft and fixedly connected to the fourth rotating shaft.

6. The anti-clamping device for the bottom door of a hopper car according to claim 1, It is characterized in that The first control component includes a first cylinder and a first pendulum block, one end of the first pendulum block is rotatably connected to the first cylinder, and the other end of the first pendulum block is sleeved on the first rotating shaft and fixedly connected to the first rotating shaft; or, the first control component is a first handle, and the first handle is fixedly connected to the first rotating shaft; and / or, The second control component includes a second cylinder and a second pendulum block, one end of the second pendulum block is rotationally connected to the second cylinder, and the other end of the second pendulum block is sleeved on the third rotating shaft and fixedly connected to the third rotating shaft; or, the second control component is a second handle, and the second handle is fixedly connected to the third rotating shaft.

7. The anti-clamping device for the bottom door of a hopper car according to claim 1, It is characterized in that The first bottom door is relatively located between the second bottom door and the inner wall of the vehicle body; or the first bottom door is relatively located between the inner wall of the vehicle body and the second rotating shaft, and the second bottom door is relatively located between the inner wall of the vehicle body and the fourth rotating shaft, and the first bottom door and the second bottom door are arranged side by side, and their ends are adjacent.

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