Dump truck control method and dump truck

Abstract

The invention relates to the technical field of vehicle control, in particular to a dumper control method and a dumper. The method comprises the following steps: obtaining level data of a warehouse of the dump truck in a static state based on unloading instruction triggering; on the basis that the first height of the warehouse is lower than the second height of the warehouse and the difference value between the first height and the second height is within a first set range, a side telescopic arm on the first side of the warehouse and a side telescopic arm on the second side of the warehouse are driven to extend in the direction away from the warehouse, and one end of a vertical telescopic arm on the side telescopic arm on the first side is driven to abut against the ground; and the thread cone on the side telescopic arm on the second side is driven to rotate and pierce into the ground to a set depth. And driving one end, close to the headstock assembly, of the warehouse to move towards the direction far away from the beam assembly until the included angle between the warehouse and the beam assembly is greater than or equal to a first set angle based on the threaded cone rotating into the ground to a set depth. Therefore, the problem of how to improve the stability of the dump truck during unloading is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle control, and in particular to a dump vehicle control method and a dump vehicle. Background Art

[0002] A dump truck is a truck used to transport bulk materials (such as sand, stone, soil, coal, building materials, etc.) and is widely used in industries such as construction, mining, agriculture, and waste disposal. The cargo hold of a dump truck is tiltable and is usually located at the rear of the vehicle. It can be hydraulically or mechanically controlled to raise one end of the cargo hold and tilt it to a certain angle, so that the cargo can be unloaded to the ground using its own weight. There are many unloading methods, including side unloading, rear unloading, and bottom unloading, among which rear unloading is more common. Dump trucks can significantly improve loading and unloading efficiency and reduce labor costs. They usually have a large load capacity and can carry a large amount of bulk materials. The cargo can be unloaded quickly, reducing loading and unloading time and improving transportation efficiency.

[0003] When the cargo hold is lifted up with the cargo, the center of gravity of the cargo hold and the cargo becomes higher due to uneven road conditions or different tire pressures, which can easily cause the vehicle to roll over. If the cargo has a certain degree of stickiness, the cargo in the cargo hold will slide out unevenly, which will aggravate the rollover of the vehicle and cause damage to the vehicle. In serious cases, it may cause casualties and safety accidents. Summary of the invention

[0004] In order to solve the problem of how to improve the stability of a dump truck during unloading, the present invention provides a dump truck control method and a dump truck.

[0005] In a first aspect, the present invention provides a method for controlling a dump truck, the method comprising:

[0006] Step S10, based on the triggering of the unloading instruction, obtaining the horizontal data of the cargo hold of the dump truck in a stationary state;

[0007] Step S20, based on the fact that the first height of the cargo hold is lower than the second height of the cargo hold and the difference between the first height and the second height is within a first set range, drive the side telescopic arm on the first side of the cargo hold and the side telescopic arm on the second side of the cargo hold to extend away from the cargo hold; wherein, the first side is one side of the cargo hold in the direction of travel of the dump vehicle; the second side is the other side parallel to the first side; the first height is the height of the first set position of the first side of the cargo hold relative to a reference horizontal plane; the second height is the height of the second set position of the second side of the cargo hold relative to a reference horizontal plane; the first set position and the second set position are symmetrically arranged along the central symmetry plane of the cargo hold;

[0008] Step S30, based on the completion of the extension of the side telescopic arm on the first side, driving one end of the vertical telescopic arm on the side telescopic arm on the first side to abut against the ground;

[0009] Step S40, based on the completion of the extension of the side telescopic arm on the second side and one end of the vertical telescopic arm on the first side abutting against the ground, driving the threaded cone on the side telescopic arm on the second side to rotate and penetrate into the ground to a set depth;

[0010] Step S50, based on the threaded cone rotating and penetrating into the ground to a set depth, drive the end of the cargo hold close to the vehicle head assembly to move in a direction away from the vehicle beam assembly until the angle between the cargo hold and the vehicle beam assembly is greater than or equal to a first set angle.

[0011] In some embodiments, step S50 includes:

[0012] Step S501, based on the threaded cone rotating and penetrating into the ground to a set depth, driving the end of the cargo hold close to the vehicle head assembly to move in a direction away from the vehicle beam assembly;

[0013] Step S502, based on the end of the cargo bin close to the vehicle head assembly moving in a direction away from the vehicle beam assembly, obtaining the real-time weight of the cargo bin in the unloading state;

[0014] Step S503, driving the threaded rod to rotate based on the change rate of the real-time weight within a first change range;

[0015] Step S504, based on the rotation of the threaded rod, the real-time weight is within a set weight range and the angle between the cargo hold and the beam assembly is greater than or equal to a first set angle.

[0016] In some embodiments, driving the end of the cargo hold close to the front assembly to move away from the beam assembly in step S502 is moving the cargo hold until the angle between the cargo hold and the beam assembly is greater than or equal to a second set angle; wherein the second set angle is greater than or equal to 1 / 2 of the first set angle and less than the first set angle.

[0017] In some embodiments, step S503 includes:

[0018] Step S5031, obtaining a first pressure on the first side and a second pressure on the second side based on a change rate of the real-time weight within a first change range;

[0019] Step S5032: based on the first pressure being greater than the second pressure, driving the threaded rod adjacent to the first side to rotate.

[0020] In some embodiments, the step S503 further includes:

[0021] Step S5033: based on the rotation of the threaded rod adjacent to the first side and the change rate of the real-time weight being within a second change range, starting a first vibrator of a vibration unit to vibrate the first side; wherein the first vibrator is disposed adjacent to the first side.

[0022] In some embodiments, step S40 includes:

[0023] Step S41, based on the completion of the extension of the side telescopic arm on the second side and one end of the vertical telescopic arm on the first side abutting against the ground, driving the end of the vertical telescopic arm on the first side away from the ground to extend in a direction away from the ground to a set height;

[0024] Step S42, based on the end of the vertical telescopic arm on the first side being away from the ground extending in a direction away from the ground to a set height, the threaded cone on the side telescopic arm on the second side is driven to rotate and penetrate into the ground to a set depth; wherein, when the threaded cone rotates and penetrates into the ground to the set depth, the real-time horizontal plane of the cargo warehouse is parallel to the reference horizontal plane; the real-time horizontal plane is the horizontal plane of the cargo warehouse perpendicular to the first side and the second side.

[0025] In some embodiments, step S50 includes:

[0026] Step S521, based on the threaded cone rotating and penetrating into the ground to a set depth, driving the end of the cargo hold close to the vehicle head assembly to move in a direction away from the vehicle beam assembly;

[0027] Step S522, based on the end of the cargo hold close to the vehicle head assembly moving in a direction away from the vehicle beam assembly, obtaining the first height and the second height in the unloading state;

[0028] Step S523, based on the fact that the first height is greater than the second height in the unloading state and the difference between the first height and the second height is within a second set range, driving the end of the vertical telescopic arm of the second side away from the ground to extend in a direction away from the ground;

[0029] Step S524, based on the end of the vertical telescopic arm of the second side away from the ground extending in a direction away from the ground, the threaded cone of the first side is driven to rotate and penetrate into the ground and keep the cargo hold parallel to the reference horizontal plane;

[0030] Step S525, based on the cargo hold being kept parallel to the reference horizontal plane, driving the angle between the cargo hold and the vehicle beam assembly to be greater than or equal to a first set angle.

[0031] In some embodiments, step S523 includes:

[0032] Step S5231, based on the fact that the first height is greater than the second height in the unloading state and the difference between the first height and the second height is within a second set range, driving the threaded rod adjacent to the second side to rotate;

[0033] Step S5232: Based on the rotation of the threaded rod adjacent to the second side, drive the end of the vertical telescopic arm of the second side away from the ground to extend in a direction away from the ground.

[0034] In a second aspect, the present invention provides a dump vehicle, the dump vehicle is applied to any of the dump vehicle control methods in the first aspect, the dump vehicle comprising:

[0035] A front assembly, the front assembly comprising a cab and a first travel unit; one end of the first travel unit is detachably connected to the cab, and the other end of the first travel unit is in contact with the ground;

[0036] A vehicle beam assembly, the vehicle beam assembly comprising a beam frame unit, a second traveling unit, and a support unit; one side of the second traveling unit is detachably connected to one side of the beam frame unit, and the other side is in contact with the ground; one end of the beam frame unit is detachably connected to one side of the first traveling unit, and the other end extends in a direction away from the first traveling unit; the support unit comprises a side telescopic arm, a vertical telescopic arm, a threaded cone, a first driving unit, a second driving unit, and a third driving unit; one end of the side telescopic arm is detachably connected to one side of the beam frame unit, and the other end is fixedly connected to one side of the vertical telescopic arm; an end of the vertical telescopic arm close to the ground is detachably connected to the threaded cone; the first driving unit is drivingly connected to the side telescopic arm; the second driving unit is drivingly connected to the vertical telescopic arm; the third driving unit is drivingly connected to the threaded cone; a plurality of the support units are spaced apart and arranged on both sides of the cargo hold along the traveling direction of the dump vehicle;

[0037] A cargo-carrying assembly, the cargo-carrying assembly comprising a cargo compartment; one side of the cargo compartment is detachably connected to a side of the beam frame unit away from the second travel unit;

[0038] A control component is detachably connected to the cab; the control component is arranged in the cab; and the control component is signal-connected to the head assembly and the beam assembly respectively.

[0039] In some embodiments, the cargo loading assembly further comprises a threaded rod and a vibration unit; one end of the threaded rod is detachably connected to an inner circumferential wall of the cargo hold away from the cab, and the other end extends along the traveling direction of the dump vehicle to be detachably connected to an inner circumferential wall of the cargo hold close to the cab; the threaded rods are arranged at intervals in the cargo hold; the vibration unit comprises a first vibrator and a second vibrator; the first vibrator is detachably connected to an outer circumferential wall of a first side of the cargo hold; the second vibrator is detachably connected to an outer circumferential wall of a second side of the cargo hold; wherein, the first side is one side of the cargo hold in the traveling direction of the dump vehicle, and the second side is the other side parallel to the first side.

[0040] In order to solve the problem of how to improve the stability of a dump truck during unloading, the present invention has the following advantages:

[0041] When the unloading instruction is triggered, the horizontal data of the cargo warehouse in a stationary state can be obtained. When the first height of the cargo warehouse is lower than the second height of the cargo warehouse and the difference between the first height and the second height is within the first set range, the side telescopic arm on the first side of the cargo warehouse and the side telescopic arm on the second side of the cargo warehouse can be driven to extend in the direction away from the cargo warehouse. When the side telescopic arm on the first side is extended, one end of the vertical telescopic arm on the side telescopic arm on the first side can be driven to abut against the ground, so that the vertical telescopic arm on the first side increases the support points of the vehicle by contacting one end of the vertical telescopic arm with the ground, thereby improving the stability of the vehicle. In this way, a more solid support force can be provided to the first side of the cargo warehouse during the unloading process to avoid rollover. When the side telescopic arm on the second side is extended and one end of the vertical telescopic arm on the first side is abutted against the ground, the threaded cone on the side telescopic arm on the second side can be driven to rotate and penetrate into the ground to a set depth. When the threaded cone rotates and penetrates into the ground to a set depth, the end of the cargo warehouse close to the head assembly can be driven to move in the direction away from the beam assembly until the angle between the cargo warehouse and the beam assembly is greater than or equal to the first set angle. The gripping force of the threaded cone on the side telescopic arm on the second side and the supporting force of the vertical telescopic arm on the side telescopic arm on the first side can effectively prevent the dump vehicle from tipping over due to the shift of the center of gravity during unloading, thereby solving the problem of how to improve the stability of the dump vehicle during unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A flow chart of a method for controlling a dump truck according to an embodiment is shown;

[0043] Figure 2 A schematic diagram of a dump vehicle according to an embodiment is shown;

[0044] Figure 3 A schematic diagram of a dump vehicle in another embodiment is shown;

[0045] Figure 4 A partial schematic diagram of a support unit of an embodiment is shown;

[0046] Figure 5 A schematic diagram of a dump truck according to another embodiment is shown.

[0047] Figure numerals: 01 front assembly; 11 cab; 12 first travel unit; 02 vehicle beam assembly; 21 beam frame unit; 22 second travel unit; 23 support unit; 231 side telescopic arm; 232 vertical telescopic arm; 233 threaded cone; 03 cargo assembly; 31 cargo compartment; 32 threaded rod; 33 vibration unit; 331 first vibrator; 332 second vibrator. DETAILED DESCRIPTION

[0048] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, rather than implying any limitation on the scope of the present disclosure.

[0049] As used herein, the term "including" and its variants are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like is based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to being used to indicate an orientation or position relationship, some of the above terms may also be used to indicate other meanings, such as the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances. In addition, the terms "install", "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0050] Dump trucks lift one end of the cargo hold 31 and tilt it at a certain angle, thereby using the cargo's own weight to unload the cargo to the ground. However, when the cargo hold 31 is lifted up with the cargo, the center of gravity of the cargo hold 31 and the cargo may become higher due to uneven road conditions (often unhardened roads) or different tire pressures, causing the vehicle to roll over. If the cargo has a certain degree of stickiness, causing the cargo in the cargo hold 31 to slide out inconsistently, this will aggravate the rollover of the vehicle, making it easy for the vehicle to be damaged, and in severe cases, it may cause casualties and safety accidents. Figure 2As shown, the dump truck may include a head assembly 01, a beam assembly 02, a cargo assembly 03, and a control assembly. The beam assembly 02 may include a beam frame unit 21, a second travel unit 22, and a support unit 23. The support unit 23 may include a side telescopic arm 231, a vertical telescopic arm 232, and a threaded cone 233. One end of the side telescopic arm 231 may be detachably connected to one side of the beam frame unit 21, and the other end may be fixedly connected to one side of the vertical telescopic arm 232. Figure 4 As shown, the end of the vertical telescopic arm 232 close to the ground can be detachably connected to the threaded cone 233. Multiple support units 23 can be arranged at intervals on both sides of the cargo hold 31 along the driving direction of the dump truck. In order to solve the problem of how to improve the stability of the dump truck during unloading, this embodiment provides a dump truck control method. Figure 1 As shown, the dump truck control method may include steps S10 to S50, and each step is described in detail as follows:

[0051] Step S10, when the unloading instruction is triggered, the cargo hold 31 has not been lifted up yet, and the level data of the cargo hold 31 of the dump truck in a stationary state can be obtained. By obtaining the level data of the cargo hold 31, it is convenient to judge the tilt state of the cargo hold 31 and perform subsequent operations.

[0052] Step S20, the first side may be one side of the cargo hold 31 in the direction of travel of the dump truck, and the second side may be the other side that may be parallel to the first side. The first height may be the height of the first set position of the first side of the cargo hold 31 relative to the reference horizontal plane, and the second height may be the height of the second set position of the second side of the cargo hold 31 relative to the reference horizontal plane. When the first height of the cargo hold 31 is lower than the second height of the cargo hold 31 and the difference between the first height and the second height is within the first set range, when the cargo hold 31 is subsequently raised for unloading, the center of gravity of the vehicle may be offset and easily overturned because the first height of the cargo hold 31 is lower than the second height of the cargo hold 31. At this time, the side telescopic arm 231 on the first side of the cargo hold 31 and the side telescopic arm 231 on the second side of the cargo hold 31 may be driven to extend in a direction away from the cargo hold 31, so that there is enough space to control the vertical telescopic arm 232 on the first side and the threaded cone 233 on the second side for subsequent operations to prevent the vehicle from overturning. The first set position can be symmetrically arranged with the second set position along the central symmetry plane of the cargo hold 31. The symmetrical arrangement in this way can make the measured first height data more accurately compared with the second height data, and avoid errors in comparing the first height with the second height. Subsequent correct operations can prevent the cargo hold 31 from lifting up and raising the center of gravity, which can cause the vehicle to easily roll over.

[0053] Step S30, when the side telescopic arm 231 of the first side is extended, one end of the vertical telescopic arm 232 on the side telescopic arm 231 of the first side can be driven to contact the ground, so that the vertical telescopic arm 232 of the first side increases the support points of the vehicle and improves the stability of the vehicle by contacting one end of the vertical telescopic arm 232 with the ground. In this way, a stronger support force can be provided to the first side of the cargo hold 31 during unloading to prevent rollover.

[0054] Step S40, when the side telescopic arm 231 of the second side is extended and one end of the vertical telescopic arm 232 of the first side is in contact with the ground, the threaded cone 233 on the side telescopic arm 231 of the second side can be driven to rotate and penetrate into the ground to a set depth. The threaded cone 233 penetrates into the ground to a set depth to provide reliable grip, ensuring that the vehicle will not roll over due to the center of gravity biased toward the first side during unloading. At the same time, after one end of the vertical telescopic arm 232 of the first side is in contact with the ground, the threaded cone 233 on the side telescopic arm 231 of the second side is driven to rotate and penetrate into the ground to a set depth, which can also buffer the reaction force generated when the threaded cone 233 penetrates into the ground, thereby preventing the second height from rising.

[0055] Step S50, when the threaded cone 233 rotates and penetrates into the ground to a set depth (for example, the set depth may be 0.3 to 0.6 meters), after penetrating to the set depth, the end of the cargo hold 31 close to the vehicle head assembly 01 may be driven to move in a direction away from the vehicle beam assembly 02 until the angle between the cargo hold 31 and the vehicle beam assembly 02 is greater than or equal to a first set angle (for example, the first set angle may be 40°). Thus, the cargo may slide out of the cargo hold 31 smoothly under the action of gravity. The gripping force of the threaded cone 233 on the side telescopic arm 231 of the second side and the supporting force of the vertical telescopic arm 232 on the side telescopic arm 231 of the first side may effectively prevent the dump truck from tipping over due to the center of gravity shift during unloading, thereby improving the stability of the dump truck during unloading.

[0056] In some embodiments, step S50 may include steps S501 to S504, each of which is described in detail as follows:

[0057] Step S501, when the threaded cone 233 rotates and penetrates into the ground to a set depth, it can drive the end of the cargo hold 31 close to the vehicle head assembly 01 to move away from the vehicle beam assembly 02, so as to facilitate the lifting of the end of the cargo hold 31 close to the vehicle head assembly 01, and the cargo can slide out of the cargo hold 31 smoothly under the action of gravity.

[0058] Step S502, when the end of the cargo hold 31 close to the vehicle head assembly 01 moves in the direction away from the vehicle beam assembly 02, the real-time weight of the cargo hold 31 in the unloading state can be obtained, so as to facilitate subsequent operations by judging whether the goods in the cargo hold 31 slide out of the cargo hold 31 in time.

[0059] Step S503, when the change rate of the real-time weight is within the first change range, it means that the change rate of the real-time weight in the unloading state is not within the normal range, and the weight of the goods unloaded in the unloading state is less than the weight of the goods unloaded in the normal situation. At this time, it means that the goods in the cargo hold 31 are sticky or stuck in the cargo hold 31, and the threaded rod 32 can be driven to rotate, so that the threaded rod 32 generates thrust to push the sticky goods out of the cargo hold 31, so as to avoid the sticky or stuck goods from being stranded in the cargo hold 31, thereby avoiding the occurrence of vehicle rollover accidents and improving the unloading efficiency.

[0060] Step S504, when the threaded rod 32 rotates, the real-time weight is within the set weight range and the angle between the cargo hold 31 and the vehicle beam assembly 02 is greater than or equal to the first set angle, thereby ensuring that the goods in the cargo hold 31 slide out smoothly and the vehicle will not roll over.

[0061] In some embodiments, the step S502 of driving the cargo hold 31 to move the end close to the vehicle head assembly 01 in the direction away from the vehicle beam assembly 02 can be to move the cargo hold 31 to a point where the angle between the cargo hold 31 and the vehicle beam assembly 02 is greater than or equal to the second set angle. The second set angle can be greater than or equal to 1 / 2 of the first set angle and less than the first set angle. When the cargo hold 31 moves to a point where the angle between the cargo hold 31 and the vehicle beam assembly 02 is less than 1 / 2 of the first set angle, the tilt angle of the cargo hold 31 is too small, and the thrust of the goods in the cargo hold 31 by driving the threaded rod 32 to rotate cannot smoothly push out the goods. Therefore, the cargo hold 31 can be moved to a point where the angle between the cargo hold 31 and the vehicle beam assembly 02 is greater than or equal to the second set angle and then the threaded rod 32 can be driven to rotate to generate thrust, so that the sticky goods can slide out of the cargo hold 31 smoothly under the action of their own gravity, thereby improving the unloading efficiency.

[0062] In some embodiments, step S503 may include:

[0063] Step S5031, when the real-time weight change rate is within the first change range, the first pressure on the first side and the second pressure on the second side can be obtained, and by subsequently comparing the first pressure on the first side with the second pressure on the second side, it is determined whether the cargo on the first side or the cargo on the second side is in a sticky state during the unloading process.

[0064] Step S5032, when the first pressure is greater than the second pressure, it means that the cargo on the first side is stuck in the cargo hold 31 and cannot slide out in time, and the threaded rod 32 adjacent to the first side can be driven to rotate so that the threaded rod 32 adjacent to the first side generates a thrust on the cargo on the first side, and the cargo is smoothly pushed out of the cargo hold 31 under the influence of its own gravity, thereby improving the efficiency of the threaded rod 32 and thus improving the unloading efficiency, avoiding the inconsistency between the cargo on the first side and the cargo on the second side sliding out of the cargo hold 31, avoiding the shift of the center of gravity of the cargo when the cargo hold 31 rises, and reducing the risk of vehicle rollover accidents.

[0065] In some embodiments, step S503 may further include:

[0066] Step S5033, when the threaded rod 32 adjacent to the first side rotates and the rate of change of the real-time weight is within the second range of change, it means that the effect of rotating the threaded rod 32 on the first side on loosening the goods on the first side of the cargo hold 31 is insufficient, and the goods on the first side are still stuck to the cargo hold 31. The first vibrator 331 of the vibration unit 33 can be started to vibrate the first side, thereby further loosening the tightly stacked or stuck goods, ensuring clean unloading and improving unloading efficiency. The first vibrator 331 can be arranged adjacent to the first side, and the vibration auxiliary effect of the first vibrator 331 can make the goods on the first side slide out of the cargo hold 31 more evenly and smoothly, avoiding the inconsistent sliding of the goods on the first and second sides causing the center of gravity of the cargo hold 31 to shift, and avoiding the dump truck from tipping over during unloading.

[0067] In some embodiments, step S40 may include:

[0068] Step S41, when the side telescopic arm 231 on the second side is extended and one end of the vertical telescopic arm 232 on the first side is in contact with the ground, since the first height of the cargo warehouse 31 is lower than the second height of the cargo warehouse 31 and the difference between the first height and the second height is within a first set range, the end of the vertical telescopic arm 232 on the first side away from the ground can be driven to extend in a direction away from the ground to a set height, so that the vertical telescopic arm 232 on the first side can increase the first height of the cargo warehouse 31, so as to facilitate leveling with the second height of the cargo warehouse 31.

[0069] Step S42, when the end of the vertical telescopic arm 232 on the first side away from the ground extends to a set height in a direction away from the ground, after the first height of the cargo hold 31 and the second height of the cargo hold 31 are leveled, the threaded cone 233 on the side telescopic arm 231 on the second side can be driven to rotate and penetrate into the ground to a set depth. When the threaded cone 233 rotates and penetrates into the ground to a set depth, the real-time horizontal plane of the cargo hold 31 is parallel to the reference horizontal plane. The real-time horizontal plane can be a horizontal plane of the cargo hold 31 perpendicular to the first side and the second side. After leveling the cargo hold 31 in this way, the end of the cargo hold 31 close to the head assembly 01 is driven to move in a direction away from the beam assembly 02 until the angle between the cargo hold 31 and the beam assembly 02 is greater than or equal to the first set angle, so as to avoid the first height of the cargo hold 31 and the second height of the cargo hold 31 being inconsistent during unloading, resulting in a shift in the center of gravity, and the grip of the threaded cone 233 on the side telescopic arm 231 on the second side can effectively prevent rollover.

[0070] In some embodiments, step S50 may include steps S521 to S525, each of which is described in detail as follows:

[0071] In step S521 , when the threaded cone 233 rotates and penetrates into the ground to a set depth, the end of the cargo compartment 31 close to the vehicle head assembly 01 can be driven to move in a direction away from the vehicle beam assembly 02 .

[0072] Step S522, when one end of the cargo hold 31 close to the vehicle head assembly 01 moves toward a direction away from the vehicle beam assembly 02, the first height and the second height in the unloading state can be obtained, so as to facilitate subsequent operations by comparing the first height and the second height in the unloading state to determine whether the cargo hold 31 is tilted in the driving direction.

[0073] Step S523, when the first height is greater than the second height in the unloading state and the difference between the first height and the second height is within the second set range, it means that the center of gravity of the cargo hold 31 is biased toward the second side and is prone to rollover. The end of the vertical telescopic arm 232 on the second side away from the ground can be driven to extend in a direction away from the ground. The second height of the cargo hold 31 is raised by the supporting force provided by the vertical telescopic arm 232 on the second side to the second side of the cargo hold 31, which can effectively prevent the vehicle from rolling over.

[0074] Step S524, when the end of the second side vertical telescopic arm 232 away from the ground extends in a direction away from the ground, the threaded cone 233 on the first side can be driven to rotate and penetrate into the ground and keep the cargo bin 31 parallel to the reference horizontal plane. The gripping force of the threaded cone 233 on the first side rotating and penetrating into the ground and the supporting force provided by the second side vertical telescopic arm 232 on the second side to the cargo bin 31 act on the cargo bin 31, so that when the first height and the second height of the cargo bin 31 are equal, it can be ensured that the subsequent unloading will not roll over.

[0075] Step S525, when the cargo hold 31 remains parallel to the reference horizontal plane, that is, the first height and the second height of the cargo hold 31 are equal, the angle between the cargo hold 31 and the vehicle beam assembly 02 can be driven to be greater than or equal to the first set angle. At this time, the cargo can slide out of the cargo hold 31 under the influence of its own gravity without tipping over, thereby improving the stability of vehicle unloading.

[0076] In some embodiments, step S523 includes:

[0077] Step S5231, when the first height is greater than the second height in the unloading state and the difference between the first height and the second height is within the second set range, the threaded rod 32 adjacent to the second side can be driven to rotate. By driving the rotation of the threaded rod 32 adjacent to the second side, the sticky goods can be loosened so that the goods on the second side can be unloaded as soon as possible to reduce the weight of the goods on the second side, which is convenient for the subsequent driving of the vertical telescopic arm 232 on the second side to support and quickly raise the second height of the cargo bin 31, thereby improving the unloading efficiency and unloading safety.

[0078] Step S5232, when the threaded rod 32 adjacent to the second side rotates, it can drive the end of the vertical telescopic arm 232 on the second side away from the ground to extend in the direction away from the ground. The supporting force provided by the vertical telescopic arm 232 on the second side can increase the second height of the cargo hold 31 as quickly as possible, so that the first height is equal to the second height, and the cargo hold 31 is prevented from tipping over during unloading, thereby improving the stability of the dump truck during unloading.

[0079] This embodiment provides a dump vehicle, which can be applied to any dump vehicle control method in the above embodiments, such as Figure 2 As shown, the dump vehicle may include: a front component 01, a beam component 02, a cargo component 03, and a control component.

[0080] like Figure 3 As shown, the front assembly 01 may include a cab 11 and a first travel unit 12. One end of the first travel unit 12 may be detachably connected to the cab 11, and the other end may abut against the ground. The detachable connection facilitates quick removal or replacement of the first travel unit 12 according to maintenance needs. The first travel unit 12 may support the weight of the dump truck, so that the dump truck can move on the ground.

[0081] The vehicle beam assembly 02 may include a beam frame unit 21, a second travel unit 22, and a support unit 23. One side of the second travel unit 22 may be detachably connected to one side of the beam frame unit 21, and the other side may be in contact with the ground. The second travel unit 22 may provide mobility to the dump truck, and the detachable connection facilitates the rapid disassembly or replacement of the second travel unit 22 according to maintenance needs. One end of the beam frame unit 21 may be detachably connected to one side of the first travel unit 12, and the other end may extend in a direction away from the first travel unit 12. The beam frame unit 21 may serve as the skeleton of the vehicle beam assembly 02, providing structural support and bearing capacity, and the detachable connection facilitates the installation and replacement of the beam frame unit 21. The support unit 23 may include a side telescopic arm 231, a vertical telescopic arm 232, a threaded cone 233, a first drive unit, a second drive unit, and a third drive unit. One end of the side telescopic arm 231 can be detachably connected to one side of the beam frame unit 21, and the other end can be fixedly connected to one side of the vertical telescopic arm 232. The detachable connection facilitates the installation of the side telescopic arm 231, and the fixed connection can enhance the stability of the connection between one end of the side telescopic arm 231 and one side of the vertical telescopic arm 232. The end of the vertical telescopic arm 232 close to the ground can be detachably connected to the threaded cone 233. The detachable connection facilitates the rapid repair or replacement of the threaded cone 233 when it is worn. The first driving unit can be drivably connected to the side telescopic arm 231 to drive the side telescopic arm 231 to perform telescopic movement. The second driving unit can be drivably connected to the vertical telescopic arm 232 to drive the vertical telescopic arm 232 to perform telescopic movement. The third driving unit can be drivably connected to the threaded cone 233 to drive the threaded cone 233 to rotate. Multiple support units 23 can be spaced apart on both sides of the cargo hold 31 along the travel direction of the dump vehicle. The multiple support units 23 can be controlled to act on the cargo hold 31 according to different unloading operation requirements, thereby improving the unloading efficiency and the stability of the dump vehicle during unloading.

[0082] The cargo assembly 03 may include a cargo hold 31. The cargo hold 31 is used to carry cargo. One side of the cargo hold 31 may be detachably connected to a side of the beam frame unit 21 away from the second travel unit 22, and the detachable connection is conducive to installing the cargo hold 31 on the side of the beam frame unit 21 away from the second travel unit 22.

[0083] The control component can be detachably connected to the cab 11, and the control component can be quickly replaced as needed. The control component can be set in the cab 11, so that the driver can operate the control component more conveniently. The control component can be connected to the head component 01 and the beam component 02 by signal respectively. The control component is connected to the head component 01 and the beam component 02 by signal, and the status of the head component 01 and the beam component 02 can be monitored in real time, which is convenient for fault diagnosis. The signal connection ensures that the control command can be quickly transmitted to the head component 01 and the beam component 02, thereby improving the vehicle's reaction speed and the accuracy of operation.

[0084] In some embodiments, Figure 5 As shown, the cargo assembly 03 may further include a threaded rod 32 and a vibration unit 33. One end of the threaded rod 32 may be detachably connected to the inner peripheral wall of the cargo hold 31 away from the cab 11, and the other end may extend along the driving direction of the dump truck to be detachably connected to the inner peripheral wall of the cargo hold 31 close to the cab 11, so that the threaded rod 32 can be disassembled and replaced during maintenance, which can improve the working efficiency of the threaded rod 32. The threaded rod 32 may be arranged in intervals in the cargo hold 31, so that when the threaded rod 32 rotates, space is provided to loosen the sticky goods in the cargo hold 31 for easy unloading. The first side may be one side of the cargo hold 31 in the driving direction of the dump truck, and the second side may be the other side parallel to the first side. The vibration unit 33 may include a first vibrator 331 and a second vibrator 332. The first vibrator 331 may be detachably connected to the outer peripheral wall of the first side of the cargo hold 31, and the first vibrator 331 of the vibration unit 33 may loosen the tightly stacked or sticky goods on the first side by vibrating the first side. The second vibrator 332 can be detachably connected to the outer peripheral wall of the second side of the cargo hold 31, and the second vibrator 332 can loosen the tightly stacked or sticky goods on the second side by vibrating the second side.

[0085] In other embodiments, the control component may include a controller, a pressure sensor, a level sensor, and a weight sensor. The controller may be connected to the pressure sensor, the level sensor, and the weight sensor signals respectively. The pressure sensor may be used to detect a first pressure on a first side and a second pressure on a second side. The first side may be one side of the cargo hold 31 in the direction of travel of the dump truck, and the second side may be the other side parallel to the first side. The level sensor may detect the level data of the cargo hold 31. The weight sensor may detect the real-time weight of the cargo hold 31. The cargo loading component 03 may also include a fourth drive unit and a fifth drive unit. The fourth drive unit may be drive-connected to the cargo hold 31 to drive the end of the cargo hold 31 close to the head assembly 01 to rise. The fifth drive unit may be drive-connected to the threaded rod 32 to drive the threaded rod 32 to rotate.

[0086] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present disclosure, and in actual applications, various changes may be made thereto in form and detail without departing from the scope of the present disclosure.

Claims

1. A dump truck control method, characterized in that: The dump vehicle control method comprises: Step S10, based on the triggering of the unloading instruction, obtaining the horizontal data of the cargo hold of the dump truck in a stationary state; Step S20, based on the fact that the first height of the cargo hold is lower than the second height of the cargo hold and the difference between the first height and the second height is within a first set range, drive the side telescopic arm on the first side of the cargo hold and the side telescopic arm on the second side of the cargo hold to extend away from the cargo hold; wherein, the first side is one side of the cargo hold in the direction of travel of the dump vehicle; the second side is the other side parallel to the first side; the first height is the height of the first set position of the first side of the cargo hold relative to a reference horizontal plane; the second height is the height of the second set position of the second side of the cargo hold relative to a reference horizontal plane; the first set position and the second set position are symmetrically arranged along the central symmetry plane of the cargo hold; Step S30, based on the completion of the extension of the side telescopic arm on the first side, driving one end of the vertical telescopic arm on the side telescopic arm on the first side to abut against the ground; Step S40, based on the completion of the extension of the side telescopic arm on the second side and one end of the vertical telescopic arm on the first side abutting against the ground, driving the threaded cone on the side telescopic arm on the second side to rotate and penetrate into the ground to a set depth; Step S50, based on the threaded cone rotating and penetrating into the ground to a set depth, drive the end of the cargo hold close to the vehicle head assembly to move in a direction away from the vehicle beam assembly until the angle between the cargo hold and the vehicle beam assembly is greater than or equal to a first set angle.

2. A dump truck control method according to claim 1, characterized in that: The step S50 comprises: Step S501, based on the threaded cone rotating and penetrating into the ground to a set depth, driving the end of the cargo hold close to the vehicle head assembly to move in a direction away from the vehicle beam assembly; Step S502, based on the end of the cargo bin close to the vehicle head assembly moving in a direction away from the vehicle beam assembly, obtaining the real-time weight of the cargo bin in the unloading state; Step S503, driving the threaded rod to rotate based on the change rate of the real-time weight within a first change range; Step S504, based on the rotation of the threaded rod, the real-time weight is within a set weight range and the angle between the cargo hold and the beam assembly is greater than or equal to a first set angle.

3. A dump truck control method according to claim 2, characterized in that: Driving the end of the cargo hold close to the vehicle head assembly to move in a direction away from the vehicle beam assembly in step S502 is moving the cargo hold until the angle between the cargo hold and the vehicle beam assembly is greater than or equal to a second set angle; wherein the second set angle is greater than or equal to 1 / 2 of the first set angle and less than the first set angle.

4. A dump truck control method according to claim 2, characterized in that: The step S503 includes: Step S5031, obtaining a first pressure on the first side and a second pressure on the second side based on a change rate of the real-time weight within a first change range; Step S5032: based on the first pressure being greater than the second pressure, driving the threaded rod adjacent to the first side to rotate.

5. A dump truck control method according to claim 4, characterized in that: The step S503 further includes: Step S5033: based on the rotation of the threaded rod adjacent to the first side and the change rate of the real-time weight being within a second change range, starting a first vibrator of a vibration unit to vibrate the first side; wherein the first vibrator is disposed adjacent to the first side.

6. A dump truck control method according to claim 1, characterized in that: The step S40 comprises: Step S41, based on the completion of the extension of the side telescopic arm on the second side and one end of the vertical telescopic arm on the first side abutting against the ground, driving the end of the vertical telescopic arm on the first side away from the ground to extend in a direction away from the ground to a set height; Step S42, based on the end of the vertical telescopic arm on the first side being away from the ground extending in a direction away from the ground to a set height, the threaded cone on the side telescopic arm on the second side is driven to rotate and penetrate into the ground to a set depth; wherein, when the threaded cone rotates and penetrates into the ground to the set depth, the real-time horizontal plane of the cargo warehouse is parallel to the reference horizontal plane; the real-time horizontal plane is the horizontal plane of the cargo warehouse perpendicular to the first side and the second side.

7. A dump truck control method according to claim 1, characterized in that: The step S50 comprises: Step S521, based on the threaded cone rotating and penetrating into the ground to a set depth, driving the end of the cargo hold close to the vehicle head assembly to move in a direction away from the vehicle beam assembly; Step S522, based on the end of the cargo hold close to the vehicle head assembly moving in a direction away from the vehicle beam assembly, obtaining the first height and the second height in the unloading state; Step S523, based on the fact that the first height is greater than the second height in the unloading state and the difference between the first height and the second height is within a second set range, driving the end of the vertical telescopic arm of the second side away from the ground to extend in a direction away from the ground; Step S524, based on the end of the vertical telescopic arm of the second side away from the ground extending in a direction away from the ground, the threaded cone of the first side is driven to rotate and penetrate into the ground and keep the cargo hold parallel to the reference horizontal plane; Step S525, based on the cargo hold being kept parallel to the reference horizontal plane, driving the angle between the cargo hold and the vehicle beam assembly to be greater than or equal to a first set angle.

8. A dump truck control method according to claim 7, characterized in that: The step S523 includes: Step S5231, based on the fact that the first height is greater than the second height in the unloading state and the difference between the first height and the second height is within a second set range, driving the threaded rod adjacent to the second side to rotate; Step S5232: Based on the rotation of the threaded rod adjacent to the second side, drive the end of the vertical telescopic arm of the second side away from the ground to extend in a direction away from the ground.

9. A dump vehicle, the dump vehicle being applied to a dump vehicle control method as claimed in any one of claims 1 to 8, characterized in that: The dump vehicle comprises: A front assembly, the front assembly comprising a cab and a first travel unit; one end of the first travel unit is detachably connected to the cab, and the other end of the first travel unit is in contact with the ground; A vehicle beam assembly, the vehicle beam assembly comprising a beam frame unit, a second traveling unit, and a support unit; one side of the second traveling unit is detachably connected to one side of the beam frame unit, and the other side is in contact with the ground; one end of the beam frame unit is detachably connected to one side of the first traveling unit, and the other end extends in a direction away from the first traveling unit; the support unit comprises a side telescopic arm, a vertical telescopic arm, a threaded cone, a first driving unit, a second driving unit, and a third driving unit; one end of the side telescopic arm is detachably connected to one side of the beam frame unit, and the other end is fixedly connected to one side of the vertical telescopic arm; an end of the vertical telescopic arm close to the ground is detachably connected to the threaded cone; the first driving unit is drivingly connected to the side telescopic arm; the second driving unit is drivingly connected to the vertical telescopic arm; the third driving unit is drivingly connected to the threaded cone; a plurality of the support units are spaced apart and arranged on both sides of the cargo hold along the traveling direction of the dump vehicle; A cargo-carrying assembly, the cargo-carrying assembly comprising a cargo compartment; one side of the cargo compartment is detachably connected to a side of the beam frame unit away from the second travel unit; A control component is detachably connected to the cab; the control component is arranged in the cab; and the control component is signal-connected to the head assembly and the beam assembly respectively.

10. A dump vehicle according to claim 9, characterized in that: The cargo loading assembly also includes a threaded rod and a vibration unit; one end of the threaded rod is detachably connected to the inner circumferential wall of the cargo hold away from the cab, and the other end extends along the traveling direction of the dump vehicle to be detachably connected to the inner circumferential wall of the cargo hold close to the cab; the threaded rods are arranged in the cargo hold at intervals; the vibration unit includes a first vibrator and a second vibrator; the first vibrator is detachably connected to the outer circumferential wall of the cargo hold on a first side; the second vibrator is detachably connected to the outer circumferential wall of the cargo hold on a second side; wherein, the first side is one side of the cargo hold in the traveling direction of the dump vehicle, and the second side is the other side parallel to the first side.

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