Opening and closing system of hopper car and hopper car

Abstract

The invention discloses an opening and closing system of a hopper car and the hopper car, and belongs to the technical field of railway vehicles. The opening and closing system of the hopper car and the hopper car comprise a power output mechanism, a power transmission mechanism and a bottom door synchronous opening and closing mechanism. The power transmission mechanism comprises a plurality of power transmission parts which are connected with one another; the output end of the power output mechanism is dynamically coupled with at least one power transmission part and is used for driving each power transmission part to synchronously rotate; the power input ends of the bottom door synchronous opening and closing mechanisms are connected to the power transmission parts in a one-to-one correspondence mode, and the opening and closing execution ends of the bottom door synchronous opening and closing mechanisms are suitable for closing the corresponding discharging port sets. Or the opening device is suitable for opening the corresponding blanking port group. According to the bottom door synchronous opening and closing mechanism, the structure is simplified, the manufacturing cost is reduced, the problem that the opening and closing execution end of the bottom door synchronous opening and closing mechanism does not synchronously open and close the multiple discharging port sets is effectively solved, and the unloading efficiency is improved.

Description

Technical Field

[0001] This application belongs to the field of railway vehicle technology, and in particular relates to an opening and closing system for a hopper car and the hopper car itself. Background Technology

[0002] Railway hopper cars are valuable for their large capacity, high efficiency, and ability to isolate and protect transported goods. Their enclosed structure effectively prevents the impact of rain and other natural factors, and also avoids environmental pollution during transportation, thus possessing significant environmental and economic value.

[0003] The core unloading mechanism of a hopper car is its bottom opening and closing system. This system directly controls the opening and closing of the discharge port assembly at the bottom of the car body, which is crucial to ensuring that goods can be unloaded smoothly and quickly. In practical applications, a hopper car section typically has multiple discharge port assemblies arranged at intervals along the longitudinal direction of the vehicle to achieve uniform and efficient unloading.

[0004] However, in related technologies, the bottom door opening and closing system of this type of funnel cart with multiple discharge ports often suffers from problems such as distributed power or asynchronous transmission. A common solution is to set up an independent power source or actuator for each discharge port group or local area. This results in a complex system structure, high manufacturing costs, and the need for individual or batch control during operation, making the unloading process cumbersome and time-consuming. Summary of the Invention

[0005] This application aims to at least solve the technical problems existing in the prior art of multi-feeding port hopper cars, which require setting up independent power sources or actuators for each feeding port group or local area. This results in complex system structure, high manufacturing costs, and the need for individual or batch control during operation, leading to cumbersome and time-consuming unloading procedures.

[0006] In a first aspect, this application provides an opening and closing system for a hopper car, which is disposed at the bottom of the hopper car, the hopper car having a plurality of discharge ports spaced apart along a first direction; the opening and closing system of the hopper car includes: a power output mechanism, a power transmission mechanism, and a plurality of bottom door synchronous opening and closing mechanisms. The power transmission mechanism includes multiple interconnected power transmission units; The output end of the power output mechanism is dynamically coupled to at least one of the power transmission parts, and is used to drive each of the power transmission parts to rotate synchronously. The power input terminals of the bottom door synchronous opening and closing mechanism are connected one-to-one with the power transmission unit, and the opening and closing execution terminals of the bottom door synchronous opening and closing mechanism are adapted to close the corresponding discharge port group; or are adapted to open the corresponding discharge port group.

[0007] According to one embodiment of this application, the power output mechanism includes a first power output component and a second power output component; The output end of the first power output component is dynamically coupled to at least one of the power transmission parts, and the input end of the first power output component is dynamically coupled to the output end of the second power output component.

[0008] According to one embodiment of this application, the first power output component includes a worm gear and a worm gear shaft; the worm gear shaft passes through the worm gear, and both ends of the worm gear shaft are correspondingly connected to the power transmission part; the second power output component includes a worm; the worm meshes with the worm gear for transmission.

[0009] According to one embodiment of this application, the second power output assembly further includes transmission connecting rods distributed on both sides of the worm and connected to the end of the worm; Each of the transmission links includes a first transmission rod, a first universal joint, a second universal joint, and a second transmission rod; one end of the first transmission rod is connected to the first universal joint and is connected to the end of the worm gear through the first universal joint, and the other end of the first transmission rod is connected to the second universal joint and is connected to the second transmission rod through the second universal joint.

[0010] According to one embodiment of this application, the second power output assembly further includes a support; The second transmission rod passes through the support, which is used to install the funnel car so that the height of the second transmission rod is higher than that of the worm gear; the end of the second transmission rod away from the first transmission rod is used to connect an external force-applying tool or an external power source.

[0011] According to one embodiment of this application, the opening and closing system of the hopper car further includes a first coupling; The first coupling includes a first coupling member and a second coupling member. One end of the first coupling member is fixedly connected to the power transmission part, and one end of the second coupling member is connected to the worm gear shaft. The first coupling member has a relief opening at the other end, and the second coupling member has a protrusion. The protrusion is rotatably disposed in the relief opening and can abut against the first sidewall or the second sidewall of the relief opening.

[0012] According to one embodiment of this application, the bottom door synchronous opening and closing mechanism includes a bottom door, a rotating arm, and a lever arm; The bottom door is rotatably mounted on the funnel cart; The middle part of the rotating arm is connected to the corresponding power transmission part, and at least one end of the rotating arm is hinged to a lever arm. The end of the lever arm opposite to the rotating arm is fixedly connected to the bottom door. The bottom door is adapted to rotate and close the corresponding discharge port group; or it is adapted to rotate and open the corresponding discharge port group.

[0013] According to one embodiment of this application, the rotating arm includes a first end and a second end, the first end being located on one side of the central axis of the rotating arm; the second end being located on the other side of the central axis of the rotating arm; and both the first end and the second end are hinged to the lever arm.

[0014] According to one embodiment of this application, the opening and closing system of the hopper car further includes a second coupling; Multiple power transmission units are axially connected in sequence, and a second coupling is connected between every two power transmission units; and / or, the opening and closing system of the hopper car further includes a bearing housing; the bearing housing is used to be installed on the hopper car, and the movable part of the bearing housing is for the power transmission units to pass through.

[0015] Secondly, this application provides a hopper car, including a car body and an opening and closing system for the hopper car; The vehicle body is provided with a plurality of discharge port groups spaced apart along a first direction, and the discharge port group includes a first discharge port and a second discharge port; The opening and closing system of the hopper car is located at the bottom of the car body, and the opening and closing execution end of the bottom door synchronous opening and closing mechanism is adapted to close the corresponding first discharge port and second discharge port; or, the opening and closing execution end of the bottom door synchronous opening and closing mechanism is adapted to open the first discharge port and the second discharge port.

[0016] According to one embodiment of this application, a buffer pad is installed on the funnel cart. The buffer pad is arranged around the first discharge port and the second discharge port, and when the opening and closing execution end of the bottom door synchronous opening and closing mechanism closes the first discharge port and the second discharge port, it abuts against the opening and closing execution end of the bottom door synchronous opening and closing mechanism.

[0017] In summary, this application includes at least one of the following beneficial technical effects: The power output mechanism of this application can serve as a single power source, avoiding the system complexity and operational cumbersomeness caused by using multiple independent power sources. The multiple interconnected power transmission parts in the power transmission mechanism ensure the continuity of power transmission, enabling all power transmission parts to rotate synchronously and eliminating the timing differences in opening and closing caused by power dispersion. The one-to-one connection between the power input end of the bottom door synchronous opening and closing mechanism and the power transmission parts ensures that the action of each bottom door mechanism matches the rotation of the power transmission part, thereby achieving synchronous closing or opening of the discharge port group by the opening and closing execution end of the bottom door synchronous opening and closing mechanism. In summary, this application not only simplifies the structure and reduces manufacturing costs but also effectively solves the problem of asynchronous opening and closing of multiple discharge port groups by the opening and closing execution end of the bottom door synchronous opening and closing mechanism, improving unloading efficiency.

[0018] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is one of the structural schematic diagrams of the funnel cart provided in the embodiments of this application; Figure 2 This is the second schematic diagram of the structure of the funnel cart provided in the embodiments of this application; Figure 3 This is one of the structural schematic diagrams of the opening and closing system of the funnel cart provided in the embodiments of this application; Figure 4 This is the second schematic diagram of the opening and closing system of the funnel cart provided in the embodiments of this application; Figure 5 This is one of the partial structural schematic diagrams of the opening and closing system of the funnel cart provided in the embodiments of this application; Figure 6 This is a second partial structural schematic diagram of the opening and closing system of the funnel cart provided in the embodiments of this application; Figure 7 This is one of the structural schematic diagrams of the first coupling provided in the embodiments of this application; Figure 8 This is a second schematic diagram of the structure of the first coupling provided in the embodiments of this application; Figure 9 This is the third schematic diagram of the structure of the first coupling provided in the embodiments of this application; Figure 10 This is a schematic diagram of the opening and closing system of the hopper car when the discharge port group of the hopper car provided in the embodiment of this application is closed; Figure 11This is a schematic diagram of the opening and closing system of the hopper car when the discharge port group of the hopper car provided in this application embodiment is opened.

[0020] Figure label: 100. Power take-off mechanism; 110. First power output assembly; 111. Worm gear; 112. Worm gear shaft; 120. Second power output assembly; 121. Worm; 122. Transmission link; 1211. First transmission rod; 1212. First universal joint; 1213. Second universal joint; 1214. Second transmission rod; 1215. Support; 200. Power transmission mechanism; 210. Power transmission unit; 300. Bottom door synchronous opening and closing mechanism; 310. Bottom door; 320. Rotating arm; 330. Lever arm; 400. First coupling; 410. First coupling; 411. Relief opening; 420. Second coupling; 421. Protrusion; 510. Bearing housing; 520. Buffer stop; 20. Vehicle body. Detailed Implementation

[0021] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0022] As an important tool for transporting bulk goods, railway covered hopper cars effectively isolate and protect cargo during transportation due to their advantages of large capacity and economic efficiency. Their enclosed structural design not only resists the impact of rain and other natural environmental factors, preventing goods from becoming damp and deteriorating, but also avoids secondary pollution caused by cargo scattering during transport, thus possessing significant environmental value and economic benefits.

[0023] The core function of a hopper car relies on its bottom opening and closing system. This system directly controls the opening and closing of multiple discharge port groups at the bottom of the car, and is a crucial link in ensuring the rapid and uniform unloading of goods. In practical applications, a hopper car section typically has multiple discharge port groups spaced longitudinally along the car to achieve balanced distribution and efficient operation during the unloading process. However, existing opening and closing systems have significant shortcomings when handling scenarios with multiple discharge port groups.

[0024] Specifically, the system often employs a distributed power configuration, meaning that a separate power source and actuator are set up for each unloading port group or local area, resulting in a redundant and complex overall structure and high manufacturing costs. During operation, each unloading port group needs to be controlled in batches or individually, making the unloading process cumbersome, lengthy, and inefficient.

[0025] The following is for reference. Figures 1-11 This application describes an opening and closing system for a hopper car and a hopper car according to embodiments thereof.

[0026] like Figures 1-4 As shown, the opening and closing system of the hopper car is used to be set at the bottom of the hopper car. The hopper car has multiple discharge port groups spaced apart along a first direction (which may be the longitudinal direction of the hopper car). The opening and closing system of the hopper car includes: a power output mechanism 100, a power transmission mechanism 200, and multiple bottom door synchronous opening and closing mechanisms 300. The power transmission mechanism 200 includes a plurality of interconnected power transmission units 210; The output end of the power output mechanism 100 is poweredly coupled to at least one of the power transmission parts 210, and is used to drive each of the power transmission parts 210 to rotate synchronously. The power input terminals of the bottom door synchronous opening and closing mechanism 300 are connected to the power transmission unit 210 one by one, and the opening and closing execution terminals of the bottom door synchronous opening and closing mechanism 300 are adapted to close the corresponding feed port group; or are adapted to open the corresponding feed port group.

[0027] In the embodiments described above, the power output mechanism 100 can serve as a single power source, avoiding the system complexity and operational cumbersomeness caused by using multiple independent power sources. The multiple interconnected power transmission units 210 in the power transmission mechanism 200 ensure the continuity of power transmission, enabling all power transmission units 210 to rotate synchronously and eliminating the timing differences in opening and closing caused by power dispersion. The one-to-one connection between the power input end of the bottom door synchronous opening and closing mechanism 300 and the power transmission unit 210 ensures that the action of each bottom door 310 mechanism matches the rotation of the power transmission unit 210, thereby achieving synchronous closing or opening of the discharge port group by the opening and closing execution end of the bottom door synchronous opening and closing mechanism 300. In summary, this application not only simplifies the structure and reduces manufacturing costs but also effectively solves the problem of asynchronous opening and closing of multiple discharge port groups by the opening and closing execution end of the bottom door synchronous opening and closing mechanism 300, improving unloading efficiency.

[0028] In some embodiments, the power output mechanism 100 includes a first power output component 110 and a second power output component 120; The output end of the first power output component 110 is poweredly coupled to at least one of the power transmission parts 210, and the input end of the first power output component 110 is poweredly coupled to the output end of the second power output component 120.

[0029] In this embodiment, the power transmission to the first power output component 110 can be optimized through the second power output component 120. In specific implementation, a manual crank can be connected to the input end of the second power output component 120, and the output end of the second power output component 120 can be transmitted to the first power output component 110 by manually rotating the crank. Alternatively, a drive motor can be connected to the input end of the second power output component 120. This application does not limit the specific implementation of the second power output component 120.

[0030] In actual implementation, the first power output component 110 includes a worm gear 111 and a worm gear 111 shaft; the worm gear 111 shaft passes through the worm gear 111, and both ends of the worm gear 111 shaft are correspondingly connected to the power transmission part 210; the second power output component 120 includes a worm 121; the worm 121 meshes with the worm gear 111 for transmission.

[0031] In this embodiment, the worm gear 121 in the second power output assembly 120 is arranged laterally along the funnel car. Its input end can be operated by a hand tool (such as a manual crank) or a drive motor to apply lateral torque. When this torque is transmitted to the worm wheel 111 meshing with the worm gear 121, the worm gear 121 pair converts it into a longitudinal torque about the axis of the worm wheel 111 and outputs it. This change in the direction of motion is beneficial for the operator to perform the operation from the side of the car body 20.

[0032] Meanwhile, this application can adopt a worm gear 121 turbine design with a large transmission ratio, which can significantly reduce the torque value required at the input end of the worm gear 121, so that the opening and closing execution end of the bottom door synchronous opening and closing mechanism 300 can open the corresponding feed port group by means of a manual tool (such as a manual crank), effectively reducing the labor intensity of the operators.

[0033] like Figure 5 and Figure 6 As shown, in actual execution, the second power output assembly 120 also includes a transmission link 122 distributed on both sides of the worm 121 and connected to the end of the worm 121; Each of the transmission links 122 includes a first transmission rod 1211, a first universal joint 1212, a second universal joint 1213, and a second transmission rod 1214; one end of the first transmission rod 1211 is connected to the first universal joint 1212 and is connected to the end of the worm gear 121 through the first universal joint 1212, and the other end of the first transmission rod 1211 is connected to the second universal joint 1213 and is connected to the second transmission rod 1214 through the second universal joint 1213.

[0034] In this embodiment, the first universal joint 1212 connects the worm gear 121 and the first transmission rod 1211, and the second universal joint 1213 connects the first transmission rod 1211 and the second transmission rod 1214. This allows the spatial posture and input position of the second transmission rod 1214 to be independently adjusted within a certain range. On the one hand, this allows the torque input point to extend from the end of the worm gear 121 to a more open and accessible position on both sides of the hopper car body 20. On the other hand, when the end of the second transmission rod 1214 is connected to a manual tool (such as a manual crank), the end of the second transmission rod 1214 is located at a comfortable ergonomic height, so that the operator does not need to bend over to work in inconvenient positions such as under the car.

[0035] In actual implementation, the second power output assembly 120 also includes a support 1215; The second transmission rod 1214 passes through the support 1215, which is used to install the funnel car so that the height of the second transmission rod 1214 is higher than that of the worm gear 121; the end of the second transmission rod 1214 away from the first transmission rod 1211 is used to connect an external force-applying tool or an external power source.

[0036] In practical applications, support 1215 refers to a structural component with support and positioning functions. It can be implemented using a metal bracket or an elastic support 1215 with shock absorption function. The purpose is to provide a stable installation foundation for the second transmission rod 1214 and optimize the operating space through height adjustment.

[0037] like Figures 5-9 As shown, in some embodiments, the opening and closing system of the hopper car further includes a first coupling 400; The first coupling 400 includes a first coupling 410 and a second coupling 420. One end of the first coupling 410 is fixedly connected to the power transmission part 210, and one end of the second coupling 420 is connected to the worm gear 111 shaft. The first coupling member 410 has a relief opening 411 at the other end, and the second coupling member 420 has a protrusion 421. The protrusion 421 is rotatably disposed on the relief opening 411 and can abut against the first side wall or the second side wall of the relief opening 411.

[0038] In this embodiment, the fixed connection between the first coupling 410 and the power transmission part 210 ensures a stable input of power from the power transmission part 210 to the first coupling 410; the clearance opening 411 of the first coupling 410 is accommodated by the protrusion 421 of the second coupling 420, and the protrusion 421 can rotate within the clearance opening 411 to facilitate the transmission of power to the second coupling 420; the connection between the second coupling 420 and the worm gear 111 shaft realizes a stable output of power to the worm gear 111 shaft.

[0039] Specifically, when torque is input from the end of the second transmission rod 1214 of the transmission linkage 122, the worm gear 111 shaft drives the second coupling member 420 to rotate. In the initial stage, the protrusion 421 of the second coupling member 420 rotates freely within the relief opening 411 of the first coupling member 410 (see...). Figure 8 This process is a no-load stroke. The no-load stroke provides a starting buffer for the operator. Continue operation until the protrusion 421 of the second coupling 420 rotates to abut against the first sidewall of the relief opening 411 (see...). Figure 9 Power begins to be transmitted from the first coupling 410 to the second coupling 420. At this time, torque is transmitted to the power transmission unit 210, and the opening and closing execution end of the bottom door synchronous opening and closing mechanism 300 closes the corresponding feed port group.

[0040] It should be noted that the opening and closing actuator of the bottom door synchronous opening and closing mechanism 300 includes the bottom door 310, and a buffer stop 520 is installed on the hopper car (see...). Figure 3 , Figure 4 and Figure 11 When the opening and closing actuator of the bottom door synchronous opening and closing mechanism 300 opens the corresponding feed port group, at the final moment of opening the bottom door 310, when the bottom door 310 accelerates due to gravity and collides with the buffer stop 520, a huge impact force is generated. At this time, the protrusion 421 of the second coupling member 420 rotates in the opposite direction to the clearance opening 411 of the first coupling member 410, thereby isolating the impact energy between the second coupling member 420 and the first coupling member 410, and preventing it from being transmitted in the opposite direction through the second coupling member 420 to the worm gear 111 shaft and the worm gear 111 worm 121, thus effectively protecting the entire power output mechanism 100 from damage.

[0041] Similarly, the protrusion 421 of the second coupling 420 can rotate freely relative to the clearance opening 411 of the first coupling 410, which can also prevent the door from opening accidentally during transportation.

[0042] like Figure 10 and Figure 11 As shown, in some embodiments, the bottom door synchronous opening and closing mechanism 300 includes a bottom door 310, a rotating arm 320, and a lever arm 330; The bottom door 310 is rotatably mounted on the body 20 of the funnel car; wherein, the bottom door 310 refers to a structural component that can flexibly rotate around the fixed hinge point of the body 20 of the funnel car, and it can be implemented using a flat or curved metal plate.

[0043] The middle part of the rotating arm 320 is connected to the corresponding power transmission part 210, and at least one end of the rotating arm 320 is hinged to a lever arm 330. The end of the lever arm 330 opposite to the rotating arm 320 is fixedly connected to the bottom door 310. The bottom door 310 is adapted to rotate and close the corresponding discharge port group; or it is adapted to rotate and open the corresponding discharge port group.

[0044] Specifically, the bottom door 310 is rotatably mounted on the body 20 of the hopper car, allowing it to rotate flexibly around a fixed hinge point, thus enabling the opening and closing of the discharge port assembly. The middle of the rotating arm 320 is connected to the corresponding power transmission unit 210, ensuring that power is transmitted evenly and reliably to the rotating arm 320. At least one end of the rotating arm 320 is hinged to a lever arm 330, the end of which is fixedly connected to the bottom door 310 away from the rotating arm 320. When the rotating arm 320 rotates to a specific angle, the hinge point between the bottom door 310 and the hopper car, the hinge point between the rotating arm 320 and the lever arm 330, and the center of the power transmission unit 210 are nearly aligned, forming a mechanical dead point. At this point, the pressure of the cargo acting on the bottom door 310 strengthens the self-locking state, effectively resisting accidental opening forces, significantly improving closing reliability, and eliminating the risk of leakage during transportation.

[0045] In actual implementation, the rotating arm 320 includes a first end and a second end. The first end is located on one side of the central axis of the rotating arm 320, and the second end is located on the other side of the central axis of the rotating arm 320. Both the first end and the second end are hinged to the lever arm 330.

[0046] In some embodiments, the opening and closing system of the hopper car further includes a second coupling; Multiple power transmission units 210 are axially connected in sequence, and a second coupling is connected between every two power transmission units 210; and / or, the opening and closing system of the hopper car also includes a bearing seat 510; the bearing seat 510 is used to be installed on the hopper car, and the movable part of the bearing seat 510 is for the power transmission unit 210 to pass through.

[0047] This application also provides a hopper car, including a car body 20 and an opening and closing system for the hopper car; The vehicle body 20 is provided with a plurality of discharge port groups spaced apart along a first direction, and the discharge port group includes a first discharge port and a second discharge port; The opening and closing system of the hopper car is located at the bottom of the car body 20, and the opening and closing execution end of the bottom door synchronous opening and closing mechanism 300 is adapted to close the corresponding first discharge port and second discharge port; or, the opening and closing execution end of the bottom door synchronous opening and closing mechanism 300 is adapted to open the first discharge port and the second discharge port.

[0048] In some embodiments, a buffer pad is installed on the hopper car, the buffer pad is arranged around the first discharge port and the second discharge port, and when the opening and closing execution end of the bottom door synchronous opening and closing mechanism 300 closes the first discharge port and the second discharge port, it abuts against the opening and closing execution end of the bottom door synchronous opening and closing mechanism 300.

[0049] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0050] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0051] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0052] In the description of this application, "multiple" means two or more.

[0053] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0054] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0056] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An opening and closing system for a hopper car, configured to be located at the bottom of the hopper car, the hopper car having a plurality of discharge ports spaced apart along a first direction; characterized in that, The opening and closing system of the hopper car includes: a power output mechanism, a power transmission mechanism, and multiple bottom door synchronous opening and closing mechanisms; The power transmission mechanism includes multiple interconnected power transmission units; The output end of the power output mechanism is dynamically coupled to at least one of the power transmission parts, and is used to drive each of the power transmission parts to rotate synchronously. The power input terminals of the bottom door synchronous opening and closing mechanism are connected one-to-one with the power transmission unit, and the opening and closing execution terminals of the bottom door synchronous opening and closing mechanism are adapted to close the corresponding discharge port group; or are adapted to open the corresponding discharge port group.

2. The opening and closing system of the funnel car according to claim 1, characterized in that, The power output mechanism includes a first power output component and a second power output component; The output end of the first power output component is dynamically coupled to at least one of the power transmission parts, and the input end of the first power output component is dynamically coupled to the output end of the second power output component.

3. The opening and closing system of the funnel car according to claim 2, characterized in that, The first power output component includes a worm gear and a worm gear shaft; the worm gear shaft passes through the worm gear, and both ends of the worm gear shaft are correspondingly connected to the power transmission part; the second power output component includes a worm; the worm meshes with the worm gear for transmission.

4. The opening and closing system of the funnel car according to claim 3, characterized in that, The second power output assembly also includes transmission connecting rods distributed on both sides of the worm and connected to the end of the worm; Each of the transmission links includes a first transmission rod, a first universal joint, a second universal joint, and a second transmission rod; one end of the first transmission rod is connected to the first universal joint and is connected to the end of the worm gear through the first universal joint, and the other end of the first transmission rod is connected to the second universal joint and is connected to the second transmission rod through the second universal joint.

5. The opening and closing system of the funnel car according to claim 4, characterized in that, The second power output assembly also includes a support; The second transmission rod passes through the support, which is used to install the funnel car so that the height of the second transmission rod is higher than that of the worm gear; the end of the second transmission rod away from the first transmission rod is used to connect an external force-applying tool or an external power source.

6. The opening and closing system of the funnel car according to claim 3, characterized in that, The opening and closing system of the hopper car also includes a first coupling; The first coupling includes a first coupling member and a second coupling member. One end of the first coupling member is fixedly connected to the power transmission part, and one end of the second coupling member is connected to the worm gear shaft. The other end of the first coupling member is provided with a relief opening, and the second coupling member is provided with a protrusion. The protrusion is rotatably provided in the relief opening and can abut against the first sidewall or the second sidewall of the relief opening.

7. The opening and closing system of the funnel car according to claim 1, characterized in that, The bottom door synchronous opening and closing mechanism includes a bottom door, a rotating arm, and a lever arm; The bottom door is rotatably mounted on the funnel cart; The middle part of the rotating arm is connected to the corresponding power transmission part, and at least one end of the rotating arm is hinged to a lever arm. The end of the lever arm opposite to the rotating arm is fixedly connected to the bottom door. The bottom door is adapted to rotate and close the corresponding discharge port group; or it is adapted to rotate and open the corresponding discharge port group.

8. The opening and closing system of the funnel car according to claim 7, characterized in that, The rotating arm includes a first end and a second end, the first end being located on one side of the central axis of the rotating arm; the second end being located on the other side of the central axis of the rotating arm; both the first end and the second end are hinged to the lever arm.

9. The opening and closing system of the funnel car according to claim 1, characterized in that, The opening and closing system of the hopper car also includes a second coupling; Multiple power transmission units are axially connected in sequence, and a second coupling is connected between every two power transmission units; and / or, the opening and closing system of the hopper car further includes a bearing housing; the bearing housing is used to be installed on the hopper car, and the movable part of the bearing housing is for the power transmission units to pass through.

10. A funnel cart, characterized in that, Includes the vehicle body and the opening and closing system of the funnel car as described in any one of claims 1-9; The vehicle body is provided with a plurality of discharge port groups spaced apart along a first direction, and each discharge port group includes a first discharge port and a second discharge port spaced apart. The opening and closing system of the hopper car is located at the bottom of the car body, and the opening and closing execution end of the bottom door synchronous opening and closing mechanism is adapted to close the corresponding first discharge port and second discharge port; or, the opening and closing execution end of the bottom door synchronous opening and closing mechanism is adapted to open the first discharge port and the second discharge port.

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