Discharging car and discharging car control method

Abstract

The invention relates to a discharging car and a discharging car control method. The discharging car comprises a car frame (1); a feed box (2); a first rotating shaft (31) and a second rotating shaft (32) of the rotating shaft assembly are connected with the bottom of the material box (2) and are arranged on the two sides of the material box (2) in the first direction respectively; the first driving piece (4) is configured to drive the material box (2) to rotate around the first rotating shaft (31) or the second rotating shaft (32) relative to the frame (1); the limiting device (5) is separably connected with the rotating shaft assembly; the limiting device (5) is configured to limit the movement of the first rotating shaft (31) and the second rotating shaft (32) relative to the frame (1) in a loading state of the unloading vehicle, and release the limiting of the first rotating shaft (31) or the second rotating shaft (32) in an unloading state of the unloading vehicle; and therefore, the material box (2) unloads materials from one end close to the second rotating shaft (32) or one end close to the first rotating shaft (31).

Description

Technical Field

[0001] The present disclosure relates to the field of engineering machinery, and in particular to a dump truck and a dump truck control method. Background Art

[0002] The unloading method of mining dump trucks used in mining areas mostly adopts hydraulic belly lifting or front lifting to push the cargo box to rotate to a specified angle, so as to realize backward unloading of the cargo box.

[0003] When a one-way unloading mining dump truck in the related technology is working, the dump truck needs to turn around to load and unload the goods. This process takes a lot of time. For mining dump trucks that perform high-intensity and high-density mining area transportation tasks, the overall transportation task of the mining area is compact, the single-trip transportation time is short, and the long unloading time will have a great impact on the overall efficiency and economic benefits of the mining area. In addition, the one-way unloading and loading and unloading process requires a large space, and some mining areas also have the problem of limited space, which causes many inconveniences. Summary of the invention

[0004] In view of this, the embodiments of the present disclosure provide a discharge truck and a discharge truck control method, which can improve the discharge efficiency.

[0005] In one aspect of the present disclosure, there is provided a dump truck, comprising:

[0006] Frame;

[0007] Material box, used to carry materials;

[0008] A rotating shaft assembly includes a first rotating shaft and a second rotating shaft, wherein the first rotating shaft and the second rotating shaft are connected to the bottom of the material box and are respectively arranged on both sides of the material box along a first direction;

[0009] A first driving member connected to the frame and the material box, and configured to drive the material box to rotate relative to the frame around the first rotating shaft or the second rotating shaft;

[0010] A limiting device is arranged on the vehicle frame and is detachably connected to the rotating shaft assembly;

[0011] Among them, the unloading truck has a loading state and a unloading state, and the limiting device is configured to limit the movement of the first rotating shaft and the second rotating shaft relative to the frame in the loading state of the unloading truck, and to release the limitation of the first rotating shaft or the second rotating shaft in the unloading state of the unloading truck, so that the material box can unload from the end close to the second rotating shaft or the end close to the first rotating shaft.

[0012] In some embodiments, the limiting device includes:

[0013] Two groups of support assemblies are respectively arranged on both sides of the frame along the first direction, and the support assemblies have an accommodating space for the rotating shaft assembly to rotate;

[0014] Two sets of locking assemblies are respectively arranged on both sides of the frame along the first direction. The locking assemblies are operably connected to the support assembly and are configured to limit the shaft assembly from being separated from the accommodating space of the support assembly or to allow the shaft assembly to be separated from the support assembly.

[0015] In some embodiments, the locking assembly comprises:

[0016] Locking frame;

[0017] A second driving member is connected to the vehicle frame and the locking frame respectively, and is configured to drive the locking frame to move along a first direction;

[0018] Among them, an assembly hole that cooperates with the end of the locking frame is set on the outer periphery of the support assembly, and the second driving member is configured to drive the end of the locking frame to insert into the assembly hole so that the locking frame restricts the rotating shaft assembly from being separated from the support assembly, and drives the end of the locking frame to leave the assembly hole to release the locking frame from limiting the rotating shaft assembly.

[0019] In some embodiments, the support assembly includes two supports, which are spaced apart on both sides of the frame along a second direction perpendicular to the first direction, the supports are U-shaped, and assembly holes are respectively provided on both side walls of the supports along the first direction;

[0020] The locking frame is configured to be inserted into the two assembly holes at the same time to limit the shaft assembly from leaving the support above the shaft assembly, and is configured to be disengaged from the assembly hole of the two assembly holes close to the outer side of the frame to allow the shaft assembly to leave the support upward.

[0021] In some embodiments, the limiting device further comprises:

[0022] Two sets of lock buckle assemblies are respectively arranged on both sides of the frame along a first direction, and each set of lock buckle assemblies includes two lock buckles spaced apart along a second direction perpendicular to the first direction;

[0023] The lock comprises a body and a movable part, wherein the movable part is configured to rotate relative to the body so as to extend relative to the body and surround the rotating shaft assembly along the circumference of the rotating shaft assembly, or to retract relative to the body to unlock the rotating shaft assembly.

[0024] In some embodiments, the unloading vehicle further comprises:

[0025] Two sets of mounting components are respectively arranged on two sides of the frame along a first direction;

[0026] The installation components include:

[0027] A mounting plate detachably connected to the bottom of the material box;

[0028] Two limit plates are vertically connected to the mounting plate. Each limit plate is provided with a mounting hole, and the rotating shaft assembly passes through the mounting hole and is connected to the limit plate.

[0029] In some embodiments, the support assembly has two supports respectively disposed on both sides of the frame along a second direction perpendicular to the first direction;

[0030] The spacing of the limiting plates along the second direction is greater than the width of the support along the second direction, so that the two limiting plates are respectively located on both sides of the support along the second direction when the rotating shaft assembly is limited in the support assembly.

[0031] In some embodiments, the unloading vehicle further comprises:

[0032] A rib plate is arranged at the bottom of the material box and extends along a second direction perpendicular to the first direction, and both ends of the rib plate are inclined surfaces;

[0033] The limit seat assembly comprises two limit seats respectively arranged on both sides of the frame along the second direction. The limit seats are inclined relative to the frame so as to abut against the two ends of the rib plate when the unloading vehicle is in a loaded state.

[0034] In some embodiments, the first driving member is disposed near the middle of the frame along the first direction.

[0035] In some embodiments, the unloading vehicle further comprises:

[0036] a displacement detection device configured to obtain a displacement of the locking assembly relative to the support assembly; and / or

[0037] The angle detection device is configured to obtain the rotation angle of the material box relative to the frame.

[0038] In another aspect of the present disclosure, a method for controlling a discharger truck based on any one of the above embodiments is provided, comprising:

[0039] In the unloading state of the unloading vehicle, the limiting device releases the limit on the first rotating shaft and the first driving member drives the material box to rotate around the second rotating shaft, so that the material box is unloaded from the end close to the second rotating shaft, or the limiting device releases the limit on the second rotating shaft and the first driving member drives the material box to rotate around the first rotating shaft, so that the material box is unloaded from the end close to the first rotating shaft; and

[0040] When the unloading vehicle is in a loaded state, the limiting device limits the movement of the first rotating shaft and the second rotating shaft relative to the vehicle frame.

[0041] Therefore, according to the embodiment of the present disclosure, the unloading truck can switch between the loading state and the unloading state by locking or unlocking the rotating shaft assembly through the limiting device, and two-way unloading can be achieved by selectively locking or unlocking the first rotating shaft or the second rotating shaft through the limiting device and cooperating with the driving of the first driving member. The switching operation between the various working states of the unloading truck is simple, fast and efficient, with a high degree of automation, which helps to improve the unloading efficiency of the unloading truck. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0043] The present disclosure may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0044] Figure 1 is a schematic structural diagram of some embodiments of the unloading vehicle according to the present disclosure;

[0045] Figure 2 is a schematic structural diagram of a loading state of some embodiments of a dump truck according to the present disclosure;

[0046] Figure 3 is a structural schematic diagram of the unloading state of some embodiments of the unloading vehicle according to the present disclosure;

[0047] Figure 4 It is a schematic diagram of the structure of the limiting device according to some embodiments of the unloading vehicle disclosed in the present invention.

[0048] In the figure:

[0049] 1. Frame; 2. Material box; 31. First rotating shaft; 32. Second rotating shaft; 4. First driving member; 5. Limiting device; 51. Locking frame; 52. Second driving member; 53. Assembly hole; 54. Support; 55. Locking buckle; 61. Mounting plate; 62. Limiting plate; 71. Rib plate; 72. Limiting seat.

[0050] It should be understood that the size of each part shown in the accompanying drawings is not drawn according to the actual proportional relationship. In addition, the same or similar reference numerals represent the same or similar components. DETAILED DESCRIPTION

[0051] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the present disclosure and its application or use. The present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present disclosure thorough and complete and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the components and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limiting.

[0052] The words "first", "second" and similar words used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0053] In the present disclosure, when a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other device without an intermediate device, or may not be directly connected to the other device but have an intermediate device.

[0054] All terms (including technical terms or scientific terms) used in the present disclosure have the same meanings as those understood by ordinary technicians in the field to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0055] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0056] The unloading method of mining dump trucks used in mining areas mostly adopts hydraulic belly lifting or front lifting to push the cargo box to rotate to a specified angle, so as to realize backward unloading of the cargo box.

[0057] When a one-way unloading mining dump truck is working, it needs to turn around to load and unload the goods. This process takes a lot of time. For mining dump trucks that perform high-intensity and high-density mining area transportation tasks, the overall transportation task of the mining area is compact, the single-trip transportation time is short, and the long unloading time will have a great impact on the overall efficiency and economic benefits of the mining area. In addition, the one-way unloading and loading and unloading process requires a large space, and some mining areas also have the problem of limited space, which causes many inconveniences.

[0058] Some two-way unloading trucks in related technologies have high requirements on the fit between the connection between the cargo box and the frame, which is not easy to achieve. In addition, the rotation of the flip shaft and the locking process of the locking pin are cumbersome, time-consuming and labor-intensive to operate, and have low efficiency. Some two-way unloading trucks require two sets of lifting cylinders, which are costly and have high requirements on the strength of the rotating lock. The method of preventing forward and backward movement has high requirements on the space of the dump truck and is not very applicable.

[0059] In view of this, in one aspect of an embodiment of the present disclosure, a discharge vehicle is provided, which can improve the discharge efficiency.

[0060] Figure 1 is a schematic diagram of the structure of some embodiments of the unloading vehicle according to the present disclosure, Figure 2 is a schematic structural diagram of a loading state of some embodiments of the unloading vehicle disclosed herein, Figure 3 It is a structural schematic diagram of the unloading state of some embodiments of the unloading vehicle according to the present disclosure, wherein the X direction in the figure is the first direction, and the Y direction is the second direction.

[0061] refer to Figure 1 to Figure 3 The unloading vehicle comprises a vehicle frame 1, a material box 2, a rotating shaft assembly, a first driving member 4 and a limiting device 5. The first direction includes but is not limited to the length direction of the unloading vehicle, and the second direction includes but is not limited to the width direction of the unloading vehicle. The structures of the unloading vehicle are symmetrically arranged relative to the midpoint in the first direction and the second direction.

[0062] The material box 2 is used for carrying materials. The shaft assembly includes a first shaft 31 and a second shaft 32. The first shaft 31 and the second shaft 32 are connected to the bottom of the material box 2 and are respectively arranged on both sides of the material box 2 along a first direction.

[0063] The first driving member 4 is connected to the frame 1 and the material box 2, and is configured to drive the material box 2 to rotate relative to the frame 1 around the first rotating shaft 31 or the second rotating shaft 32. The limiting device 5 is provided on the frame 1 and is detachably connected to the rotating shaft assembly.

[0064] The unloading truck has a loading state and a unloading state. The limiting device 5 is configured to limit the movement of the first rotating shaft 31 and the second rotating shaft 32 relative to the frame 1 in the loading state of the unloading truck, and to release the limiting of the first rotating shaft 31 or the second rotating shaft 32 in the unloading state of the unloading truck, so that the material box 2 can unload from the end close to the second rotating shaft 32 or the end close to the first rotating shaft 31.

[0065] The unloading vehicle includes but is not limited to an unmanned dump truck for mining, which can travel autonomously and is used in special mining environments. The frame 1 is connected to the traveling mechanism to drive the unloading vehicle to move. The material box 2 is arranged above the frame 1 and can rotate relative to the frame 1 so as to switch between the unloading state and the loading state through the first driving member 4.

[0066] The first driving member 4 includes but is not limited to a lifting cylinder, which is respectively hinged to the frame 1 and the material box 2. There are two lifting cylinders, which are respectively arranged on both sides of the frame 1 along the second direction, and serve as a power source for adjusting the posture of the material box 2 to realize the switching of the material box 2 between the loading state and the unloading state.

[0067] In the loading state, the material box 2 can carry materials and can be used for the unloading vehicle to travel to the transfer site. In this state, the first rotating shaft 31 and the second rotating shaft 32 are locked by the limit device 5, and the material box 2 is in a horizontal state relative to the frame 1, and the materials in the material box 2 will not fall out.

[0068] In the unloading state, the limiting device 5 releases the lock on the second rotating shaft 32 and keeps the lock on the first rotating shaft 31, and the first driving member 4 drives the material box 2 to rotate around the first rotating shaft 31, so that the side of the material box 2 close to the second rotating shaft 32 rises upward, so that the material in the material box 2 is poured out through the side close to the first rotating shaft 31; or the limiting device 5 releases the lock on the first rotating shaft 31 and keeps the lock on the second rotating shaft 32, and the first driving member 4 drives the material box 2 to rotate around the second rotating shaft 32, so that the side of the material box 2 close to the first rotating shaft 31 rises upward, so that the material in the material box 2 is poured out through the side close to the second rotating shaft 32.

[0069] In this embodiment, the unloading vehicle can switch between the loading state and the unloading state by locking or unlocking the rotating shaft assembly through the limit device 5. The two-way unloading can be achieved by selectively locking or unlocking the first rotating shaft 31 or the second rotating shaft 32 through the limit device 5 and cooperating with the driving of the first driving member 4. The switching operation between the working states of the unloading vehicle is simple, fast and efficient, with a high degree of automation, which helps to improve the unloading efficiency of the unloading vehicle.

[0070] Figure 4 is a schematic diagram of the structure of the limit device of some embodiments of the unloading vehicle disclosed in the present invention, referring to Figure 1 to Figure 4 In some embodiments, the limiting device 5 includes two groups of support assemblies and two groups of locking assemblies.

[0071] Two sets of support assemblies are respectively arranged on both sides of the frame 1 along the first direction, and the support assemblies have an accommodation space for the rotation of the shaft assembly. Two sets of locking assemblies are respectively arranged on both sides of the frame 1 along the first direction, and the locking assemblies are operably connected to the support assemblies and are configured to restrict the shaft assembly from being separated from the accommodation space of the support assembly or to allow the shaft assembly to be separated from the support assembly.

[0072] When the first rotating shaft 31 and / or the second rotating shaft 32 is locked by the limiting device 5 , the first rotating shaft 31 and / or the second rotating shaft 32 is located in the accommodating space of the support assembly and can rotate in the accommodating space as driven by the first driving member 4 .

[0073] Each set of locking components corresponds to the support components one by one, restricting the rotating shaft component within the accommodating space to lock the rotating shaft component, or allowing the rotating shaft component to leave the support component to unlock the rotating shaft component.

[0074] In this embodiment, through the cooperation of the support assembly and the locking assembly, reliable limiting can be provided when the shaft assembly needs to be locked, so that the unloading truck has higher reliability and safety in each working state, and the lock can be released efficiently and easily when the shaft assembly needs to be unlocked, which is beneficial to improving the working efficiency of the unloading truck.

[0075] refer to Figure 1 to Figure 4 In some embodiments, the locking assembly includes: a locking frame 51 and a second driving member 52. The second driving member 52 is connected to the frame 1 and the locking frame 51 respectively, and is configured to drive the locking frame 51 to move along the first direction.

[0076] An assembly hole 53 that cooperates with the end of the locking frame 51 is set on the outer periphery of the support assembly, and the second driving member 52 is configured to drive the end of the locking frame 51 to insert into the assembly hole 53 so that the locking frame 51 restricts the rotating shaft assembly from being separated from the support assembly, and drives the end of the locking frame 51 to leave the assembly hole 53 to release the locking frame 51 from limiting the rotating shaft assembly.

[0077] The second driving member 52 includes but is not limited to a telescopic oil cylinder, which drives the locking frame 51 to translate back and forth along the first direction so that the locking frame 51 is inserted into the assembly hole 53 or leaves the assembly hole 53. The assembly hole 53 is arranged near the opening of the accommodating space of the support assembly, and the shape of the assembly hole 53 can be set to square, circular or triangular according to actual needs.

[0078] When the locking frame 51 is inserted into the assembly hole 53, the locking frame 51 and the accommodating space of the support assembly form a limiting space, and the shaft assembly cannot escape from the accommodating space. When the locking frame 51 leaves the assembly hole 53, the accommodating space of the support assembly is open, and the shaft assembly can leave the accommodating space.

[0079] In this embodiment, the locking frame 51 and the assembly hole 53 of the support assembly are plugged in and out to close and open the accommodation space of the support assembly, and the switching process is simple and easy to operate. The self-locking property of the second driving member 52 can ensure that the locking frame 51 will not move.

[0080] refer to Figure 1 to Figure 4 In some embodiments, the support assembly includes two supports 54, which are spaced apart on both sides of the frame 1 along a second direction perpendicular to the first direction. The supports 54 are U-shaped, and assembly holes 53 are respectively provided on both side walls of the supports 54 along the first direction.

[0081] The locking frame 51 is configured to be inserted into the two assembly holes 53 at the same time to limit the shaft assembly from leaving the support 54 above the shaft assembly, and is configured to be disengaged from the assembly hole 53 close to the outer side of the frame 1 among the two assembly holes 53 to allow the shaft assembly to leave the support 54 upward.

[0082] Two supports 54 of a support assembly are spaced apart along the second direction at positions on the frame 1 corresponding to the shaft assembly, so as to improve the reliability of limiting and bearing the shaft assembly.

[0083] The U-shaped opening of the support 54 forms a receiving space, and the same positions of the two side walls of the U-shaped opening are respectively provided with assembly holes 53. When the operating end of the locking frame 51 is inserted into the two assembly holes 53 at the same time, a limit is formed above the rotating shaft assembly to prevent the rotating shaft assembly from being separated from the receiving space. When the locking frame 51 is retracted from one or both assembly holes 53, the end of the locking frame 51 is no longer located above the U-shaped opening, and the rotating shaft assembly can be freely separated from the support 54 above the receiving space. The locking frame 51 always moves within the range between the two side walls of the U-shaped support 54.

[0084] The locking frame 51 includes but is not limited to a connecting portion extending along the second direction and two operating portions extending along the first direction, the connecting portion being used to connect to the second driving member 52, and the spacing of the connecting portions along the second direction corresponds to the spacing between the two supports 54 in the same group of support assemblies, so that the two operating portions can be inserted into the assembly holes of the two supports 54 at the same time.

[0085] In this embodiment, the locking and releasing of the rotating shaft assembly are achieved by the cooperation between the locking frame 51 and the U-shaped support 54, which is safe, reliable, simple, feasible and has strong applicability.

[0086] refer to Figure 1 to Figure 4 In some embodiments, the limiting device 5 further includes two groups of locking components, which are respectively arranged on both sides of the frame 1 along the first direction, and each group of locking components includes two locking components 55 spaced apart along a second direction perpendicular to the first direction.

[0087] The lock buckle 55 includes a body and a movable portion, wherein the movable portion is configured to rotate relative to the body so as to extend relative to the body and surround the rotating shaft assembly along the circumference of the rotating shaft assembly, or to retract relative to the body to unlock the rotating shaft assembly.

[0088] The body of the lock buckle 55 includes a concave portion that matches the circumference of the shaft assembly. The concave portion is arc-shaped, and the center of the concave portion is coaxially arranged with the center of the U-shaped support 54 along the second direction to better fit the shaft assembly.

[0089] The lock 55 can be arranged on the inner side of the two supports 54 on the same side in the second direction. The lock assembly includes but is not limited to being driven by an electric control to synchronously realize the locking and releasing of the shaft assembly in cooperation with the locking frame 51, thereby realizing the bidirectional unloading of the unloading vehicle.

[0090] The number of lock buckles 55 included in each group of lock buckle assemblies can be adjusted according to actual needs, and the spacing between adjacent lock buckles 55 can also be adjusted according to actual needs, including but not limited to equidistant distribution.

[0091] In this embodiment, the locking assembly and the locking frame 51 cooperate to achieve the locking and releasing of the shaft assembly, forming double limiting and double unlocking, further improving the reliability of locking, and reducing the risk of movement and displacement of the shaft assembly.

[0092] refer to Figure 1 to Figure 4 In some embodiments, the unloading vehicle further includes two sets of mounting components, and the two sets of mounting components are respectively arranged on both sides of the frame 1 along the first direction.

[0093] The mounting assembly includes a mounting plate 61 and two limiting plates 62. The mounting plate 61 is detachably connected to the bottom of the material box 2, and the two limiting plates 62 are vertically connected to the mounting plate 61. Each limiting plate 62 has a mounting hole, and the rotating shaft assembly passes through the mounting hole and is connected to the limiting plate 62.

[0094] The mounting plate 61 is arranged to fit the bottom wall of the material box 2, including but not limited to being detachably connected to the material box 2 by bolts. Under the two-way unloading condition, the force on the frame and the rotating shaft when they are in alternating contact is relatively complex, and the mounting components are easily damaged. When the mounting components are damaged and cannot meet the use requirements, the first driving member 4 can cooperate to realize the rapid replacement of the mounting components on both sides, and the maintenance time is short.

[0095] In this embodiment, the rotating shaft assembly is arranged at the bottom of the material box 2 through the limiting plate 62 and the mounting plate 61, which is convenient for the disassembly, assembly and maintenance of the rotating shaft assembly and the mounting assembly, and has strong applicability. The limiting plate 62 can also limit the displacement of the rotating shaft assembly, reduce the risk of movement of the rotating shaft assembly, and improve the safety and reliability of the unloading vehicle.

[0096] refer to Figure 1 to Figure 4 In some embodiments, the support assembly has two supports 54 respectively arranged on both sides of the frame 1 along a second direction perpendicular to the first direction. The spacing of the limiting plates 62 along the second direction is greater than the width of the supports 54 along the second direction, so that the two limiting plates 62 are respectively located on both sides of the supports 54 along the second direction when the rotating shaft assembly is limited in the support assembly.

[0097] In this embodiment, the limit plate 62 can be buckled on the outer periphery of the support 54, and the two limit plates 62 and the two supports 54 located on the same side along the first direction cooperate with each other to limit the movement of the material box 2 along the second direction, so that the unloading truck can have better stability in both the unloading state and the loading state.

[0098] refer to Figure 1 to Figure 4 In some embodiments, the unloading vehicle further comprises: a rib plate 71 and a limit seat assembly. The rib plate 71 is arranged at the bottom of the material box 2 and extends along a second direction perpendicular to the first direction, and both ends of the rib plate 71 are inclined surfaces.

[0099] The limit seat assembly has two limit seats 72 respectively arranged on both sides of the frame 1 along the second direction. The limit seats 72 are inclined relative to the frame 1 so as to abut against both ends of the rib plate 71 when the unloading vehicle is loaded. Rubber pads can be provided on the working surface of the limit seat 72 to play a certain adjustment and buffering role when contacting the rib plate 71.

[0100] Under the premise of ensuring space, the limit seat 72 is arranged as close to the support 54 as possible, so that when the material box 2 swings left and right around the shaft assembly when subjected to lateral force, the displacement of both sides of the material box 2 is limited to reduce the impact.

[0101] In this embodiment, the rib plate 71 and the limit seat 72 cooperate to mitigate the impact of the material box 2 contacting the frame 1 when it falls back, and make the material box 2 contact the frame 1 better and more reliably, which helps to enhance the stability of the whole vehicle.

[0102] refer to Figure 1 to Figure 3 In some embodiments, the first driving member 4 is arranged along the first direction near the middle of the frame 1. In this embodiment, the first driving member 4 is arranged in the middle of the frame 1, and only one first driving member 4 is required on one side of the frame, which can reduce the power cost of the unloading vehicle.

[0103] In some embodiments, the unloading vehicle further comprises: a displacement detection device and / or an angle detection device. The displacement detection device is configured to obtain the displacement of the locking assembly relative to the support assembly, and the angle detection device is configured to obtain the rotation angle of the material box 2 relative to the vehicle frame 1.

[0104] In this embodiment, the status of each working device of the unloading truck is monitored in real time by a displacement detection device and an angle detection device and fed back to the vehicle controller. The vehicle controller controls the working status of the first drive member 4, the second drive member 52 and the lock 55 based on the detection parameters, thereby realizing the automation of two-way unloading and loading of the unloading truck.

[0105] In another aspect of the embodiments of the present disclosure, a method for controlling a discharger based on any one of the above embodiments is provided, comprising:

[0106] In the unloading state of the unloading vehicle, the limiting device 5 releases the limiting of the first rotating shaft 31 and the first driving member 4 drives the material box 2 to rotate around the second rotating shaft 32, so that the material box 2 unloads from the end close to the second rotating shaft 32, or the limiting device 5 releases the limiting of the second rotating shaft 32 and the first driving member 4 drives the material box 2 to rotate around the first rotating shaft 31, so that the material box 2 unloads from the end close to the first rotating shaft 31; and in the loading state of the unloading vehicle, the limiting device 5 limits the movement of the first rotating shaft 31 and the second rotating shaft 32 relative to the frame 1.

[0107] In this embodiment, the different working states of the unloading vehicle are switched by the limit device 5, allowing the unloading vehicle to unload in both directions, shortening the unloading cycle time and improving the transportation efficiency. It is simple, feasible and highly applicable.

[0108] refer to Figure 1 to Figure 4 , the working process of the unloading vehicle in some embodiments is given below:

[0109] When it is necessary to unload from the side close to the second rotating shaft 32, the second rotating shaft 32 is a rotating shaft, and the vehicle control system issues a command, the second driving member 52 works and drives the locking frame 51 close to the first rotating shaft to move toward the direction close to the second rotating shaft 32, and the lock 55 close to the first rotating shaft opens synchronously.

[0110] When the end of the locking frame 51 close to the first rotating shaft 31 disengages from the assembly hole 53 close to the outside and moves to the inner side of the support 54, the signal of the displacement detection device changes, and the whole vehicle issues a command to stop the second driving member 52 from moving. At this time, the first rotating shaft 31 is in a completely released state relative to the frame 1, and the second rotating shaft 32 is always in a locked state during the whole process.

[0111] The first driving member 4 lifts the material box 2 from the middle, and the entire material box 2 rotates along the second rotating shaft 32. After rotating to a specified angle, the material can be unloaded from the side close to the second rotating shaft 32.

[0112] After unloading is completed, the material box 2 falls down, and the signal of the angle detection device is used to confirm that the material box 2 has landed. At this time, the first rotating shaft 31 enters the support 54 and the lock buckle 55, and the second driving member 52 drives the locking frame 51 to move away from the second rotating shaft 32, and the lock buckle 55 is locked at the same time. According to the signal of the displacement detection device at both ends of the support 54, it is judged whether the end of the locking frame 51 close to the first rotating shaft 31 returns to the assembly hole 53. After confirmation, the second driving member 52 stops moving, and the first rotating shaft 31 and the second rotating shaft 32 are both locked. The unloading vehicle can continue to perform the transportation task.

[0113] When the cargo box is unloaded from the side close to the first rotating shaft 31, the first rotating shaft 31 is a rotating shaft at this time, and the vehicle control system issues a command, the second driving member 52 works and drives the locking frame 51 close to the second rotating shaft 32 to move to the left, and the lock buckle 55 close to the second rotating shaft 32 is opened synchronously. When the end of the locking frame 51 close to the second rotating shaft 32 moves to disengage from the assembly hole 53 close to the outside and moves to the inner side of the support 54, the signal of the displacement detection device changes, and the vehicle issues a command to stop the second driving member 52 from moving. At this time, the second rotating shaft 32 is in a completely released state relative to the frame 1, and the first rotating shaft 31 is always in a locked state during the whole process.

[0114] The first driving member 4 lifts the material box 2 from the middle, and the entire material box 2 rotates along the first rotating shaft 31 . After rotating to a specified angle, the material box 2 can be lifted from the side close to the first rotating shaft 31 .

[0115] After unloading is completed, the material box 2 falls, and the signal of the angle detection device is used to confirm that the material box 2 has landed. At this time, the second rotating shaft 32 enters the support 54 and the lock 55, and the second driving member 52 drives the locking frame 51 to move to the right, and the lock 55 is locked at the same time. According to the sensor signals at both ends of the support 54, it is judged that the end of the locking frame 51 close to the second rotating shaft 32 returns to the assembly hole 53. After confirmation, the second driving member 52 stops moving, and the first rotating shaft 31 and the second rotating shaft 32 are both locked. The unloading vehicle can continue to perform the transportation task.

[0116] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0117] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A discharge vehicle, characterized in that: include: Frame (1); A material box (2), used for carrying materials; A rotating shaft assembly, comprising a first rotating shaft (31) and a second rotating shaft (32), wherein the first rotating shaft (31) and the second rotating shaft (32) are connected to the bottom of the material box (2) and are respectively arranged on both sides of the material box (2) along a first direction; A first driving member (4) connected to the frame (1) and the material box (2), and configured to drive the material box (2) to rotate relative to the frame (1) around the first rotating shaft (31) or the second rotating shaft (32); A limiting device (5) is arranged on the frame (1) and is detachably connected to the rotating shaft assembly; The unloading vehicle has a loading state and a unloading state, and the limiting device (5) is configured to limit the movement of the first rotating shaft (31) and the second rotating shaft (32) relative to the vehicle frame (1) in the loading state of the unloading vehicle, and to release the limiting of the first rotating shaft (31) or the second rotating shaft (32) in the unloading state of the unloading vehicle, so that the material box (2) can be unloaded from the end close to the second rotating shaft (32) or the end close to the first rotating shaft (31).

2. The unloading vehicle according to claim 1, characterized in that: The limiting device (5) comprises: Two groups of support assemblies are respectively arranged on both sides of the frame (1) along the first direction, and the support assemblies have a receiving space for the rotation of the rotating shaft assembly; Two sets of locking assemblies are respectively arranged on both sides of the frame (1) along the first direction, and the locking assemblies are operably connected to the support assembly and are configured to limit the rotation shaft assembly from being separated from the accommodating space of the support assembly or to allow the rotation shaft assembly to be separated from the support assembly.

3. The unloading vehicle according to claim 2, characterized in that: The locking assembly comprises: Locking frame (51); A second driving member (52) is connected to the vehicle frame (1) and the locking frame (51) respectively, and is configured to drive the locking frame (51) to move along a first direction; The outer periphery of the support assembly is provided with an assembly hole (53) which cooperates with the end of the locking frame (51), and the second driving member (52) is configured to drive the end of the locking frame (51) to be inserted into the assembly hole (53) so that the locking frame (51) restricts the rotating shaft assembly from being separated from the support assembly, and drives the end of the locking frame (51) to leave the assembly hole (53) so as to release the locking frame (51) from limiting the rotating shaft assembly.

4. The unloading vehicle according to claim 3, characterized in that: The support assembly comprises two supports (54) which are arranged at intervals on both sides of the frame (1) along a second direction perpendicular to the first direction, the supports (54) are U-shaped, and the two side walls of the supports (54) along the first direction are respectively provided with the assembly holes (53); The locking frame (51) is configured to be inserted into the two assembly holes (53) at the same time to restrict the rotating shaft assembly from leaving the support (54) above the rotating shaft assembly, and is configured to be disengaged from the assembly hole (53) close to the outer side of the frame (1) among the two assembly holes (53) to allow the rotating shaft assembly to leave the support (54) upward.

5. The unloading vehicle according to claim 2, characterized in that: The limiting device (5) also includes: Two groups of lock components are respectively arranged on both sides of the frame (1) along the first direction, and each group of the lock components includes two locks (55) spaced apart along a second direction perpendicular to the first direction; The lock (55) comprises a main body and a movable part, wherein the movable part is configured to rotate relative to the main body so as to extend relative to the main body and surround the rotating shaft assembly along the circumference of the rotating shaft assembly, or to retract relative to the main body to unlock the rotating shaft assembly.

6. The unloading vehicle according to claim 2, characterized in that: Also includes: Two groups of mounting components are respectively arranged on two sides of the frame (1) along the first direction; Wherein, the installation component includes: A mounting plate (61) detachably connected to the bottom of the material box (2); Two limiting plates (62) are vertically connected to the mounting plate (61); each limiting plate (62) is provided with a mounting hole, and the rotating shaft assembly passes through the mounting hole and is connected to the limiting plate (62).

7. The unloading vehicle according to claim 6, characterized in that: The support assembly comprises two supports (54) respectively arranged on both sides of the frame (1) along a second direction perpendicular to the first direction; The spacing between the limiting plates (62) along the second direction is greater than the width of the support (54) along the second direction, so that the two limiting plates (62) are respectively located on both sides of the support (54) along the second direction when the rotating shaft assembly is limited in the support assembly.

8. The unloading vehicle according to claim 1, characterized in that: Also includes: A rib plate (71) is arranged at the bottom of the material box (2) and extends along a second direction perpendicular to the first direction, and both ends of the rib plate (71) are inclined surfaces; The limit seat assembly comprises two limit seats (72) respectively arranged on both sides of the frame (1) along the second direction, and the limit seats (72) are inclined relative to the frame (1) so as to abut against the two ends of the rib plate (71) when the unloading vehicle is in a loaded state.

9. The unloading vehicle according to any one of claims 1 to 8, characterized in that: The first driving member (4) is arranged close to the middle of the frame (1) along the first direction.

10. The unloading vehicle according to claim 2, characterized in that: Also includes: a displacement detection device configured to obtain a displacement of the locking assembly relative to the support assembly; and / or The angle detection device is configured to obtain the rotation angle of the material box (2) relative to the vehicle frame (1).

11. A method for controlling a discharge vehicle based on the discharge vehicle according to any one of claims 1 to 10, characterized in that: include: In the unloading state of the unloading vehicle, the limiting device (5) releases the limiting of the first rotating shaft (31) and the first driving member (4) drives the material box (2) to rotate around the second rotating shaft (32), so that the material box (2) is unloaded from the end close to the second rotating shaft (32); or the limiting device (5) releases the limiting of the second rotating shaft (32) and the first driving member (4) drives the material box (2) to rotate around the first rotating shaft (31), so that the material box (2) is unloaded from the end close to the first rotating shaft (31); as well as When the unloading vehicle is in a loaded state, the limiting device (5) limits the movement of the first rotating shaft (31) and the second rotating shaft (32) relative to the vehicle frame (1).

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