Funnel car unloading door opening and closing system and funnel car

Abstract

The application discloses a funnel car unloading door opening and closing system and a funnel car, and belongs to the technical field of funnel cars. The funnel car unloading door opening and closing system comprises a driving seat, a driving shaft rotatably arranged in the driving seat, a first connecting arm with a first end connected to the driving shaft, a second connecting arm provided with a waist-shaped hole along a length direction and pivotally connected to a second end of the first connecting arm, a guide piece, a sliding piece movably connected to the guide piece and hingedly connected to one end of the second connecting arm, a third connecting arm with a first end hingedly connected to the sliding piece, a supporting seat connected to the funnel car, a transmission piece hingedly connected to the supporting seat and a second end of the third connecting arm, a fourth connecting arm with a first end hingedly connected to the transmission piece, a fifth connecting arm with a first end hingedly connected to a second end of the fourth connecting arm, a shaft seat and a main shaft rotatably arranged in the shaft seat and connected to a second end of the fifth connecting arm. The funnel car unloading door opening and closing system and the funnel car are convenient to operate and safe and reliable.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of hopper cars, and particularly relates to a hopper car unloading door opening and closing system and a hopper car. BACKGROUND

[0002] A railway hopper car is a main type of special railway transport vehicle, and is mainly used for transporting various bulk large-equivalent goods, such as grain, ore and building materials. Generally, the bottom of the railway hopper car is provided with door plates that can be deflected to open and close, and an opening and closing system is arranged to drive the door plates to deflect, so as to realize the opening and closing of the bottom of the railway hopper car to meet the needs of loading and unloading goods.

[0003] The opening and closing system usually needs to drive multiple door plates to synchronously deflect to open and close, and therefore, a worm and gear driving mechanism, a transmission main shaft and multiple groups of driving connecting rods that are hingedly connected at intervals on the main shaft are arranged in the opening and closing system. The worm and gear driving mechanism drives the main shaft to rotate to drive the driving connecting rods to act, so as to push and pull the door plates to deflect. However, the worm and gear transmission mechanism has a high requirement for coupling precision and an unsatisfactory fault tolerance. Once wear or improper cooperation occurs, the mechanism is prone to be stuck, and the functional performance is unstable. Moreover, the coupling connection of the worm and gear maintains rigid stable contact. During unloading, when the impact of goods is transmitted to the worm and gear mechanism through the door plates, the structure is prone to be damaged, and even the safety risk of the operator is increased. SUMMARY

[0004] The application provides a hopper car unloading door opening and closing system and a hopper car, and aims to at least solve the technical problem that the impact resistance of the hopper car unloading door opening and closing system is not ideal, the hopper car unloading door opening and closing system is prone to be damaged and has a safety risk.

[0005] In one aspect of the application, the hopper car unloading door opening and closing system is configured to be installed on a hopper car, and comprises:

[0006] A driving seat is installed on the hopper car.

[0007] A driving shaft is rotatably arranged in the driving seat.

[0008] A first connecting arm is connected to the driving shaft at a first end to rotate with the driving shaft.

[0009] A second connecting arm is provided with a waist-shaped hole along a length direction, and the waist-shaped hole is pivotally connected to a second end of the first connecting arm.

[0010] A guide member is installed on the hopper car.

[0011] A sliding member is movably connected to the guide member, and one end of the second connecting arm is hingedly connected to the sliding member.

[0012] a third connecting arm, a first end of which is hingedly connected to the sliding member;

[0013] a support base connected to the hopper car;

[0014] a transmission member hingedly connected to the support base and a second end of the third connecting arm, respectively;

[0015] a fourth connecting arm, a first end of which is hingedly connected to the transmission member;

[0016] a fifth connecting arm, a first end of which is hingedly connected to a second end of the fourth connecting arm;

[0017] a shaft base connected to the hopper car;

[0018] a main shaft rotatably arranged in the shaft base and connected to a second end of the fifth connecting arm to rotate under the drive of the fifth connecting arm.

[0019] In some embodiments, the guide member comprises a guide cylinder, a first window and a second window are formed in a cylinder wall of the guide cylinder, the sliding member is slidingly arranged in the guide cylinder, the second connecting arm is movably embedded in the first window, and the third connecting arm is movably embedded in the second window.

[0020] In some embodiments, a roller set is arranged on the sliding member and rolling connected to an inner wall of the guide cylinder.

[0021] In some embodiments, any two of an axial direction of the drive shaft, an axial direction of the main shaft, and a guide direction of the guide member are orthogonal.

[0022] In some embodiments, the transmission member comprises a curved arm, a first end of the curved arm is hingedly connected to the support base, a second end of the curved arm is hingedly connected to the second end of the third connecting arm, and a middle part of the curved arm is hingedly connected to the first end of the fourth connecting arm.

[0023] In some embodiments, the support base comprises two oppositely arranged clamping plates, the curved arm is deflectably arranged between the two clamping plates, and the first end of the curved arm is pivotally connected to the two clamping plates.

[0024] In some embodiments, among the hingedly connected points of the second end of the curved arm and the middle part of the curved arm, the second end of the curved arm is away from the fourth connecting arm.

[0025] In some embodiments, a handle is connected to the drive shaft.

[0026] Another aspect of the embodiments of the present application also provides a hopper car, comprising:

[0027] a car body;

[0028] a door panel pivotally connected to the vehicle body;

[0029] a drive link hingedly connected to the door panel;

[0030] The funnel car unloading door opening and closing system, the driving seat, the guide, the support seat and the shaft seat are installed on the funnel car, and the main shaft is connected with the drive link.

[0031] In some embodiments, the drive link comprises:

[0032] a sixth connecting arm connected to the main shaft;

[0033] a seventh connecting arm hingedly connected to the sixth connecting arm at a first end and hingedly connected to the door panel at a second end.

[0034] The funnel car unloading door opening and closing system and the funnel car provided by the embodiments of the present application have at least the following beneficial effects:

[0035] The funnel car unloading door opening and closing system provided by the embodiments of the present application comprises a driving seat, a driving shaft, a first connecting arm, a second connecting arm, a guide, a sliding member, a third connecting arm, a support seat, a transmission member, a fourth connecting arm, a fifth connecting arm, a shaft seat and a main shaft. The driving seat is installed on the funnel car as a rotating support of the driving shaft and outputs torque by rotating the driving shaft. The first stage link mechanism composed of the first connecting arm and the second connecting arm connected in sequence rotates the sliding member and drives the sliding member to move along the guide to convert the torque into driving torque in a set direction. The shaft seat is installed on the funnel car as a rotating support of the main shaft, and the sliding member is connected with the main shaft through the second stage link mechanism composed of the fourth connecting arm and the fifth connecting arm connected in sequence, so as to drive the main shaft to rotate, output torque, drive the door panel to deflect and realize the opening and closing of the funnel car. It is worth noting that by establishing the first stage link mechanism, the directional sliding mechanism and the second stage link mechanism connected in sequence between the rotating driving shaft and the main shaft to convert the direction and form of the torque, a stable driving structure is realized, and a multi-stage lever principle structure can be formed based on the transmission structure of the hingedly connected link, which to some extent reduces the force required for opening and closing operation and reduces the operation difficulty. On the other hand, since the multi-stage link and the directional sliding mechanism can utilize the movable connection structure of the multi-stage link, a certain amplitude of swing space is provided, which can absorb a certain degree of impact, so as to buffer the impact from the door panel to some extent, thereby reducing the risk of impact damage of the funnel car unloading door opening and closing system and even the whole funnel car, and also reducing the safety risk of the operator to some extent. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0037] Figure 1 A structural schematic diagram of a hopper car in the present application is shown;

[0038] Figure 2 A closed state schematic diagram of the hopper car in Figure 1 is shown;

[0039] Figure 3 An open state schematic diagram of the hopper car in Figure 1 is shown;

[0040] Figure 4 An open state schematic diagram of the opening and closing system in the hopper car in Figure 1 is shown;

[0041] Figure 5 A closed state schematic diagram of the opening and closing system in the hopper car in Figure 1 is shown;

[0042] Figure 6 A structural schematic diagram of the hopper car unloading door opening and closing system in Figure 1 is shown;

[0043] Figure 7 A partial enlarged view of the hopper car unloading door opening and closing system in Figure 6 is shown;

[0044] Figure 8 Another angle structural schematic diagram of the hopper car unloading door opening and closing system in Figure 7 is shown;

[0045] Figure 9 A top view of the hopper car unloading door opening and closing system in Figure 7 is shown;

[0046] Figure 10 An open state schematic diagram of the hopper car unloading door opening and closing system in Figure 7 is shown;

[0047] Figure 11 A closed state schematic diagram of the hopper car unloading door opening and closing system in Figure 7 is shown.

[0048] Reference signs:

[0049] 1-car body;

[0050] 2 - door panel, 21 - hinged assembly, 211 - hanger, 212 - deflection arm;

[0051] 3 - drive link, 31 - sixth connecting arm, 32 - seventh connecting arm;

[0052] 4 - hopper car unloading door opening and closing system, 41 - drive mechanism, 41a - drive seat, 41b - drive shaft, 41c - handle, 42a - first connecting arm, 42b - second connecting arm, 42b1 - waist type hole, 43a - guide, 43a1 - guide cylinder, 43a2 - window, 43b - sliding piece, 43b1 - roller set, 44 - third connecting arm, 45a - support seat, 45a1 - clamping plate, 45b - transmission piece, 45b1 - curved arm, 46a - fourth connecting arm, 46b - fifth connecting arm, 47a - shaft seat, 47b - main shaft DETAILED DESCRIPTION

[0053] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0054] In addition, the same reference numerals and / or letters refer to items that are the same and are not necessarily described multiple times in the present application. In addition, the present application provides examples of various specific processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0055] The present application will be described below in combination with the drawings and with reference to specific embodiments:

[0056] The hopper car is provided with a deflectable door panel, and the opening and closing of the hopper car can be realized by controlling the deflection of the door panel. Generally, a rotatable main shaft drives a multi-stage curved arm linkage mechanism to pull the door panel to deflect. However, in order to drive the main shaft to rotate, a rigidly connected transmission structure such as a worm gear transmission mechanism is usually used, which is easy to wear and tear. When impacted by the door panel, the mechanical damage to the precisely matched worm gear structure is extremely easy, which threatens the functional reliability and functionality of the transmission structure, and even impacts the operator, causing safety risks.

[0057] Therefore, the embodiments of the present application provide a hopper car unloading door opening and closing system and a hopper car, which aim to solve the technical problems of the hopper car unloading door opening and closing system in a certain extent, such as poor impact resistance, easy damage and safety risks.

[0058] Referring toFigure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 In some embodiments, the hopper car can include a car body 1, a door plate 2, a driving link 3, and a hopper car unloading door opening and closing system 4. The door plate 2 is rotatably connected to the car body 1, the hopper car unloading door opening and closing system is arranged on the car body 1, and the driving link 3 is connected to the door plate 2 and the hopper car unloading door opening and closing system 4 respectively, so that by operating the hopper car unloading door opening and closing system 4, the door plate 2 is driven to deflect to control the opening and closing of the unloading port on the car body 1.

[0059] It is worth noting that the car body 1 is a box structure with an internal loading cavity, and the bottom is provided with an unloading port, and the door plate 2 is matched with the unloading port and can block the unloading port by deflection, and can also unblock the unloading port by deflection.

[0060] Generally, the unloading port is multiple and arranged at intervals on the bottom of the car body 1, and correspondingly, the door plate is also multiple, and the driving link 3 is also multiple.

[0061] In some embodiments, the door plate 2 is connected to the car body 1 through a hinged assembly 21, and the hinged assembly 21 can include a hanger seat 211 and a deflection arm 212, the hanger seat 211 is installed on the car body 1, the deflection arm 212 is arranged on the door plate 2, and the deflection arm 212 is hinged with the hanger seat 211 to realize the deflection of the door plate 2 relative to the car body 1.

[0062] Generally, the deflection arm 212 has a certain length, so that the hanger seat 211 can be away from the unloading port of the car body 1, thereby reducing the risk of material impact on the hanger seat 211 and its hinged part, to ensure the reliability of the structure and function of the hinged assembly 21.

[0063] At the same time, since the deflection arm 212 has a certain length, after the door plate 2 is deflected and opened, it can be away from the unloading port, thereby reducing the risk of hindering the passage of materials and the friction damage of the door plate 2 by materials.

[0064] In some embodiments, considering that the deflection process of the door plate 2 is a fixed-axis deflection with a circular arc trajectory, in order to adapt to the motion mode of the door plate 2 and reduce the risk of interference between the door plate 2 and the hopper car unloading door opening and closing system 4, the driving link 3 can be provided as a two-stage link mechanism, which can consider the transmission of torque and the adaptation of the arc trajectory of the door plate 2 through the deformation of the link.

[0065] Specifically, the driving link 3 can include a sixth connecting arm 31 and a seventh connecting arm 32, a first end of the seventh connecting arm 32 is hinged with the sixth connecting arm 31, a second end of the seventh connecting arm 32 is hinged with the door plate 2, the sixth connecting arm 31 is connected with the hopper car unloading door opening and closing system 4, so that the hopper car unloading door opening and closing system 4 drives the sixth connecting arm 31 to act, to drive the door plate 2 to deflect through the seventh connecting arm 32.

[0066] Referring to Figure 6 , Figure 8 , Figure 9 , Figure 10 and Figure 11 , in some embodiments, the hopper car unloading door opening and closing system 4 is configured to be installed on a hopper car and connected with the sixth connecting arm 31 to drive the driving link 3 to act, to control the door plate 2 to open and close.

[0067] Specifically, the hopper car unloading door opening and closing system 4 usually needs to drive multiple groups of the door plate 2 to open and close along the length side of the car body 1, and the operating position is usually located at the width side of the car body 1, therefore, in the transmission path of the driving torque, it needs to change direction multiple times, and also needs to consider the reliability of the structure.

[0068] Therefore, the hopper car unloading door opening and closing system 4 can adopt a multi-stage movable transmission structure to adapt to the operating mode at the width side of the car body and the driving mode at the length side. The hopper car unloading door opening and closing system 4 can include a driving seat 41a, a driving shaft 41b, a first connecting arm 42a, a second connecting arm 42b, a guide 43a, a sliding piece 43b, a third connecting arm 44, a support seat 45a, a transmission piece 45b, a fourth connecting arm 46a, a fifth connecting arm 46b, a shaft seat 47a, and a main shaft 47b.

[0069] The driving seat 41a is installed on the vehicle body 1, the driving shaft 41b is rotatably arranged in the driving seat 41a, the first end of the first connecting arm 42a is connected to the driving shaft 41b, and the second end is pivotally connected to the waist-shaped hole 42b1 arranged on the second connecting arm 42b; the guide 43a is installed on the vehicle body 1, the sliding part 43b is slidably connected to the guide 43a, and the sliding part 43b can be hingedly connected to the second connecting arm 42b and the first end of the third connecting arm 44 respectively; the support seat 45a is installed on the vehicle body 1, and the transmission part 45b is hingedly connected to the support seat 45a and the second end of the third connecting arm 44 respectively; the first end of the fourth connecting arm 46a is hingedly connected to the transmission part 45b, and the second end of the fourth connecting arm 46a is hingedly connected to the first end of the fifth connecting arm 46b; the shaft seat 47a is installed on the vehicle body 1, and the main shaft 47b is rotatably arranged in the shaft seat 47a, and the main shaft 47b is connected to the second end of the fifth connecting arm 46b.

[0070] The driving seat 41a and the driving shaft 41b constitute an operating mechanism 41 and are integrally installed on the vehicle body 1 of the hopper car, usually on the width side of the vehicle body 1. Among them, the driving seat 41a is configured as the installation basis of the operating mechanism 41, used for installation on the vehicle body 1 as a force application fulcrum; the driving shaft 41b is rotatably arranged in the driving seat 41a, and the driving torque is output by rotating the driving shaft 41b. Generally, a rolling support assembly such as a bearing can be arranged in the driving seat 41a, which is not described here.

[0071] The first end of the first connecting arm 42a is connected to the driving shaft 41b and can rotate with the driving shaft 41b to output torque. Generally, the first end of the first connecting arm 42a can be directly fixed on the driving shaft 41b, such as being fastened on the driving shaft 41b by using fasteners, or can be directly formed on the driving shaft 41b.

[0072] The waist-shaped hole 42b1 is arranged on the second connecting arm 42b along the length direction of the second connecting arm 42b, and the waist-shaped hole 42b1 is pivotally connected to the second end of the first connecting arm 42a; so that the first connecting arm 42a and the second connecting arm 42b can rotate relative to each other and can slide relative to each other along the waist-shaped hole 42b1, so that the driving mechanism 41 and other components in the hopper car unloading door opening and closing system 4 can have a certain buffer space, reducing the impact of rigid impact.

[0073] The guide 43a and the sliding member 43b constitute a sliding mechanism moving along a track, for converting the torque transmitted by the first connecting arm 42a, and can convert it into movement along a set track, such as a substantially linear track; wherein the sliding member 43b pushes and pulls the third connecting arm 44 to move, so as to drive the transmission member 45b to deflect relative to the support base 45a. The fourth connecting arm 46a moves under the drive of the transmission member 45b, so as to drive the fifth connecting arm 46b to move, thereby driving the main shaft 47b to rotate.

[0074] The main shaft 47b is rotatably arranged in the shaft base 47a, and outputs torque to the drive link 3, so as to drive the drive link 3 to act, and control the deflection of the door panel 2.

[0075] In some embodiments, the guide 43a can include a guide cylinder 43a1, which has a cylinder cavity inside for accommodating the sliding member 43b, and can guide the sliding member 43b to reciprocate along a set track, so as to stabilize the torque conversion from the drive mechanism 41, and ensure the stability of the action posture and range of the second connecting arm 42b and the third connecting arm 44.

[0076] In view of the length and deflection amplitude of the second connecting arm 42b and the third connecting arm 44, in order to avoid interference with the guide cylinder 43a1, a through-wall window 43a2 can be formed on the cylinder wall of the guide cylinder 43a1 along the moving direction of the sliding member 43b, and can be provided as two, and the second connecting arm 42b and the third connecting arm 44 can be partially embedded in the window 43a2 during movement, thereby avoiding direct interference with the cylinder wall.

[0077] Generally, the guide cylinder 43a1 can be directly fixed on the vehicle body 1.

[0078] In some embodiments, in order to facilitate the movement stability of the sliding member 43b, a roller set 43b1 can be arranged on the sliding member 43b, and the roller set 43b1 is rolling connected on the inner cylinder wall of the guide cylinder 43a1.

[0079] In some embodiments, the guide 43a can also adopt a slide rail, and the sliding member 43b can be provided as a sliding block movably connected on the slide rail.

[0080] In some embodiments, the axial direction of the main shaft 47b can be arranged along the length direction of the vehicle body 1, and the axial direction of the drive shaft 41b can be arranged along the width direction of the vehicle body 1. That is, the axial direction of the main shaft 47b is substantially orthogonal to the axial direction of the drive shaft 41b.

[0081] In some embodiments, the transmission member 45b can be provided as a curved arm 45b1, such as a generally V-shaped curved arm; the two ends of the curved arm 45b1 are hingedly connected with the support seat 45a and the third connecting arm 44 respectively, and the middle hinged point of the curved arm 45b1 is hingedly connected with the first end of the fourth connecting arm 46a, so that the fourth connecting arm 46a is connected in the middle of the curved arm 45b1 to some extent, and the movement of the fourth connecting arm 46a is relatively smooth to some extent, avoiding impact caused by over-speed movement.

[0082] Generally, the middle of the curved arm 45b1 is closer to the fifth connecting arm 46b, reducing the risk of interference between the ends of the curved arm 45b1 and the fourth connecting arm 46a.

[0083] In some embodiments, considering that the third connecting arm 44, the transmission member 45b, the fourth connecting arm 46a and the fifth connecting arm 46b adopt multi-stage movable connection, the posture should be strictly controlled to avoid large swing during movement, thereby avoiding local distortion and mechanical damage.

[0084] Therefore, the support seat 45a can be provided as two oppositely arranged clamping plates 45a1, and the curved arm 45b1 is arranged between the two clamping plates 45a1, so as to limit the swing amplitude of the curved arm 45b1 in the non-rotation direction to some extent, thereby ensuring the stability of the posture.

[0085] Generally, part of the clamping plate 45a1 can be provided as a hollow structure, which can reduce the structural weight while ensuring the structural strength and limiting capacity.

[0086] In some embodiments, the curved arm 45b1 can also be provided as a plate structure, which can be adapted to the form of the two clamping plates 45a1, improve the overall thickness, and reduce the risk of scratching interference between the curved arm 45b1 and the clamping plate 45a1.

[0087] In some embodiments, in order to facilitate operation, a handle 41c, such as a hand wheel or the like handle structure, can be connected to the drive shaft 41b.

[0088] In some embodiments, the main shaft 47b can be arranged below the bottom centerline of the vehicle body 1, and the discharge port of the vehicle body 1 is arranged on both sides of the main shaft 47b. In order to adapt to the main shaft 47b, the middle of the sixth connecting arm 31 can be fixed on the main shaft 47b, and the two ends thereof are movably connected with the door plate 2 through the sixth connecting arms 32 respectively.

[0089] The embodiments of the present application have at least the following beneficial effects:

[0090] The funnel car unloading door opening and closing system and the funnel car provided by the embodiment of the application comprise a driving seat, a driving shaft, a first connecting arm, a second connecting arm, a guide piece, a sliding piece, a third connecting arm, a supporting seat, a transmission piece, a fourth connecting arm, a fifth connecting arm, a shaft seat and a main shaft; the driving seat is installed on the funnel car and serves as the rotating support of the driving shaft, and torque output is realized by rotating the driving shaft; then the first-stage connecting rod mechanism composed of the first connecting arm and the second connecting arm connected in sequence is used to rotate the sliding piece and drive the sliding piece to move along the guide piece, so as to convert the torque into driving torque in a set direction; the shaft seat is installed on the funnel car and serves as the rotating support of the main shaft, and the sliding piece is connected with the main shaft through the second-stage connecting rod mechanism composed of the fourth connecting arm and the fifth connecting arm connected in sequence, so as to drive the main shaft to rotate, output torque and drive the door plate to deflect, thereby realizing the opening and closing of the funnel car. It is worth noting that the direction and form of the torque are converted by establishing the first-stage connecting rod mechanism, the directional sliding mechanism and the second-stage connecting rod mechanism connected in sequence between the rotating driving shaft and the main shaft, a stable driving structure is realized, a multi-stage lever principle structure can be formed based on the transmission structure of the articulated connecting rod, the force required for the opening and closing operation is reduced to a certain extent, and the operation difficulty is reduced. On the other hand, since the multi-stage connecting rod and the directional sliding mechanism can utilize the movable connection structure of the multi-stage connecting rod, have a certain amplitude of swing space and can absorb a certain degree of impact, the impact from the door plate can be buffered to a certain extent, thereby reducing the risk of impact damage of the funnel car unloading door opening and closing system and even the whole funnel car and reducing the safety risk of the operator to a certain extent.

[0091] In the present application, unless specifically defined and limited otherwise, "on" or "under" of a first feature to a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "above" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. "Below", "below" and "below" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0092] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0093] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement condition and the like between the components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0094] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood broadly, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium; can be internal connection of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0095] In addition, the description such as "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implying the number of the indicated technical features. Therefore, the features limited by "first", "second" can include one or more of the features explicitly or implicitly. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0096] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present description, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present description.

[0097] In addition, the technical solutions among various embodiments can be combined with each other, but it must be based on that a person skilled in the art can realize, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0098] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and deformations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A hopper car unloading door opening and closing system configured to be installed in a hopper car, characterized by, The hopper car unloading door opening and closing system comprises: a driving seat installed on the hopper car; a driving shaft rotatably arranged in the driving seat; a first connecting arm with a first end connected to the driving shaft to rotate with the driving shaft; a second connecting arm with a waist-shaped hole formed along a length direction and pivotally connected to a second end of the first connecting arm; a guide member installed on the hopper car; a sliding member movably connected to the guide member and hingedly connected to one end of the second connecting arm; a third connecting arm with a first end hingedly connected to the sliding member; a support seat connected to the hopper car; a transmission member hingedly connected to the support seat and a second end of the third connecting arm; a fourth connecting arm with a first end hingedly connected to the transmission member; a fifth connecting arm with a first end hingedly connected to a second end of the fourth connecting arm; a shaft seat connected to the hopper car; a main shaft rotatably arranged in the shaft seat and connected to a second end of the fifth connecting arm to rotate under the drive of the fifth connecting arm.

2. The hopper car discharge door opening and closing system as claimed in claim 1, wherein The guide member comprises a guide cylinder with a first window and a second window formed on a cylinder wall of the guide cylinder, the sliding member is slidingly arranged in the guide cylinder, the second connecting arm is movably embedded in the first window, and the third connecting arm is movably embedded in the second window.

3. The hopper car discharge door opening and closing system as claimed in claim 2, wherein The sliding member is provided with a roller set which is rolling connected to an inner wall of the guide cylinder.

4. The hopper car discharge door opening and closing system as claimed in claim 2, wherein Any two of an axial direction of the driving shaft, an axial direction of the main shaft and a guide direction of the guide member are orthogonal.

5. The hopper car discharge door opening and closing system as claimed in claim 1, wherein The transmission member comprises a curved arm with a first end hingedly connected to the support seat, a second end hingedly connected to the second end of the third connecting arm, and a middle part hingedly connected to the first end of the fourth connecting arm.

6. The hopper car discharge door opening and closing system as claimed in claim 5, wherein The support seat comprises two oppositely arranged clamping plates, the curved arm is deflectably arranged between the two clamping plates, and the first end of the curved arm is pivotally connected to the two clamping plates.

7. The hopper car discharge door opening and closing system as claimed in claim 5, wherein Among the hingedly connected points of the second end of the curved arm and the middle part of the curved arm, the second end of the curved arm is away from the fifth connecting arm.

8. The hopper car discharge door opening and closing system according to any one of claims 1 to 7, characterized by The driving shaft is connected with a handle.

9. A hopper car characterized by, The hopper car unloading door opening and closing system comprises: a car body; a door plate deflectably connected to the car body; a driving link hingedly connected to the door plate; The hopper car unloading door opening and closing system according to any one of claims 1-8, wherein the driving seat, the guide member, the support seat and the shaft seat are installed on the hopper car, and the main shaft is connected to the driving link.

10. The hopper car of claim 9, wherein, The driving link comprises: a sixth connecting arm connected to the main shaft; a seventh connecting arm with a first end hingedly connected to the sixth connecting arm and a second end hingedly connected to the door plate.

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