A cargo box, method and mining dump truck with flexible and self-adaptive balanced bearing of ore

Abstract

The present invention discloses a cargo box, a method and a mining dump truck for rigid-flexible adaptive balanced bearing of ore materials, which are particularly applicable to the automatic adjustment of the bearing steel wire ropes of mining dump trucks. A built-in double-wedge fastener is provided at one end of the steel wire rope, and the built-in double-wedge fastener is fixedly connected to the inner steel plate of the side beam; a tensioning mechanism is provided at the other end of the steel wire rope and fixedly connected to the bottom of the cross beam; both sides of the steel wire rope are wound around the transverse steering component. There are two longitudinal steel wire ropes at the bottom of the cross beam and the longitudinal beam, and the longitudinal steel wire ropes and the transverse steel wire ropes are fixedly connected by vertical steel wire ropes and locking buttons. The rotation of the drum in the downward pulling mechanism is controlled by an industrial control computer, so as to drive the longitudinal steel wire ropes to pull down the transverse steel wire ropes. When the transverse steel wire ropes are lower than the cross beam and the longitudinal beam, the drum stops rotating, so as to realize the rigid-flexible adaptive unloading of goods by the mining dump truck. Compared with the prior art, the present invention is easy to disassemble, convenient to install, can freely change the stress length of the ropes, and has reliable performance, and has wide practicability.

Description

Technical Field

[0001] The present invention relates to a cargo box and a method for adaptively balancing the load of ore in a rigid-flexible manner for a mining dump truck, and is particularly applicable to the automatic adjustment of the load-bearing steel ropes of a mining dump truck. Background Art

[0002] Currently, the cargo boxes used in the field of mining dump trucks generally include cargo boxes with steel plates directly used as liners, cargo boxes with rubber plates laid on the steel plates as liners, and cargo boxes with rubber plates laid on steel ropes as liners. In the actual situation of mine transportation, cargo boxes with steel plates directly used as liners and cargo boxes with rubber plates laid on the steel plates as liners are more common. The advantage of this structure is its simplicity, but there are many drawbacks. For example, the installation of the rubber plates is relatively complex, and its impact resistance performance is not as good as that of the cargo box with rubber plates laid on steel ropes as the liner. Currently, the cargo box with rubber plates laid on steel ropes as the liner has the advantages of good impact resistance and simple installation of rubber plates, but there are also many drawbacks. The steel ropes on both side beams of the cargo box are fixed by bolts. In this structure, the number of steel ropes and bolts is large, which increases the installation time and labor intensity, and it is difficult to carry out maintenance inspection and observation. And in the existing structure, once the steel ropes are installed, the two ends of the steel ropes are fixed. During long-term use, the steel ropes will deform due to stress, increasing the stress length of the steel ropes. When the steel ropes contact the bottom longitudinal beam of the cargo box, the stress decreases, ultimately damaging the impact resistance of the cargo box. Moreover, it is also a waste of time to replace the steel ropes. Summary of the Invention

[0003] In view of the deficiencies of the existing technology, the purpose of the present invention is to provide a cargo box for adaptively balancing the load of ore in a rigid-flexible manner that is easy to disassemble, convenient to install, can freely change the stress length of the ropes, and has reliable performance.

[0004] The present invention is implemented according to the following technical solutions:

[0005] The first aspect of the present invention discloses a cargo box for adaptively balancing the load of ore in a rigid-flexible manner, including:

[0006] A cargo box main body;

[0007] A plurality of steel rope assemblies, which are arranged at intervals and cover the bottom plate of the cargo box main body for carrying heavy objects, and the steel rope assemblies can automatically tighten the steel ropes before the heavy objects fall into the cargo box, so that the heavy objects do not contact the bottom plate;

[0008] A pulling-down mechanism, which is installed on the bottom surface of the bottom plate of the cargo box main body and is connected to the plurality of steel rope assemblies, and is used to pull down the steel ropes in the steel rope assemblies to a position lower than the upper surface of the bottom plate, so that the heavy objects fall onto the bottom plate of the cargo box main body.

[0009] In some embodiments, the steel rope assembly includes:

[0010] A rope fixing component, which is installed at an outer edge of the cargo box body;

[0011] A longitudinal steering component, which is installed at the other outer edge of the cargo box body;

[0012] A tensioning mechanism, which is installed on the bottom surface of the bottom plate of the cargo box body;

[0013] A transverse steel wire rope, one end of which is fixed on the rope fixing component, and the other end is wound around the longitudinal steering component and then fixed on the tensioning mechanism. The transverse steel wire rope is tensioned or relaxed by the tensioning mechanism;

[0014] An automatic adjustment control component, which is connected to the tensioning mechanism and can automatically tighten the steel wire rope before a heavy object falls into the cargo box.

[0015] In some embodiments, the automatic adjustment control component includes:

[0016] A first pressure detection component, which is installed at the rope fixing component and is used to monitor the tension of the transverse steel wire rope in real time;

[0017] A signal collector, which is connected to the first pressure detection component;

[0018] An industrial control computer, which is connected to the signal collector. The signal collector transmits the collected pressure value to the industrial control computer for analysis and processing. Before a heavy object falls into the cargo box, the industrial control computer controls the tensioning mechanism to start, which will gradually tighten the transverse steel wire rope. When the first pressure detection component reaches the set first upper limit value, the industrial control computer controls the tensioning mechanism to stop, and the transverse steel wire rope is in a tensioned state.

[0019] In some embodiments, the pulling-down mechanism includes:

[0020] Fixed pulleys, each of which is arranged at both ends of any longitudinal line on the bottom surface of the bottom plate of the cargo box body;

[0021] A drum, which is installed at the tail end of the bottom plate of the cargo box body;

[0022] A longitudinal steel wire rope, one end of which bypasses the fixed pulley located at the front of the bottom plate and is fixed on the bottom surface of the bottom plate, and the other end bypasses the fixed pulley located at the rear of the bottom plate and is wound around the drum;

[0023] The vertical steel wire ropes are arranged at intervals between the two fixed pulleys. The top end is connected to the corresponding horizontal steel wire rope above through a locking button, and the bottom end is connected to the longitudinal steel wire rope below through a locking button. After the heavy object is loaded into the cargo compartment and falls on the horizontal steel wire rope, when the first pressure detection component monitors that the pressure value on the horizontal steel wire rope reaches the set second upper limit value, the industrial control computer controls the drum to rotate. When the drum rotates, the height of the longitudinal steel wire rope drops, thereby driving the vertical steel wire rope to pull the horizontal steel wire rope downward.

[0024] In some embodiments, the automatic adjustment control component further includes:

[0025] The second pressure detection component is installed on the upper surface of the bottom plate of the cargo compartment main body. After the heavy object is unloaded, the second pressure detection component transmits the detected lowest pressure value to the industrial control computer, and the industrial control computer controls the tensioning mechanism and the downward pulling mechanism to start, causing the tensioning mechanism to contract, and at the same time controlling the drum to rotate reversely to gradually tighten the horizontal steel wire rope below the upper surface of the bottom plate until the horizontal steel wire rope returns to its initial position.

[0026] In some embodiments, the steel wire rope assembly further includes:

[0027] The horizontal steering components are staggeredly installed at the outer edges of both sides of the cargo compartment main body, and are used for winding and steering the steel wire rope between the rope fixing component and the longitudinal steering component for multiple times.

[0028] In some embodiments, the horizontal steering component is composed of an anti-friction wheel that supports and steers the horizontal steel wire rope and a limit wheel that limits the horizontal steel wire rope; both the anti-friction wheel and the limit wheel are connected to the cargo compartment main body through bearing seats, and the horizontal steel wire rope is located between the anti-friction wheel and the limit wheel.

[0029] In some embodiments, the rope fixing component is an internal double-wedge block fastener, including:

[0030] Two symmetrical wedge blocks, each with an arc-shaped groove on the opposite plane of the two wedge blocks, and the steel wire rope is passed through between the two arc-shaped grooves;

[0031] A housing for installing the two wedge blocks, and two threaded plates are symmetrically arranged on the outer side surface of the housing;

[0032] A pressing plate, with a through hole for passing the steel wire rope in the middle and a bolt hole on each side;

[0033] Two locking screws are respectively passed through the two threaded holes and tightened into the threaded plates. After continuously tightening the locking screws, the wedge blocks are pressed by the pressing plate to squeeze the steel wire rope, thereby realizing the fixation of one end of the horizontal steel wire rope.

[0034] In some embodiments, the cargo compartment main body includes a guard plate, a front plate, side plates, side beams, cross beams and longitudinal beams;

[0035] Wherein, the side beams are installed on the bottom surface of the side plates, and the side beams protrude outward by a preset distance. The rope fixing parts, longitudinal steering parts and transverse steering parts in the wire rope assembly are installed on the protruding parts of the side beams; the cross beam and the longitudinal beam form the bottom plate of the cargo box body, the longitudinal beam is installed on the bottom surface of the cross beam, and both ends of the cross beam are respectively connected to the bottom surfaces of the corresponding side beams on both sides.

[0036] In some embodiments, the interval between the cross beams is n times the diameter of the wire rope, and n can be set to 1 to 20; the vertical distance between the cross beam and the longitudinal beam is m times the wire rope, and m can be set to 1 to 20.

[0037] In some embodiments, the number of longitudinal beams is two, the two longitudinal beams are symmetrically arranged on both sides of the longitudinal center line of the bottom plate, and a downward pulling mechanism is installed on the longitudinal beams.

[0038] The second aspect of the present invention discloses a mining dump truck equipped with the above-mentioned cargo box that can adaptively balance the load of ore with rigidity and flexibility.

[0039] The third aspect of the present invention discloses an automatic adjustment method for the rigid-flexible adaptive balanced load bearing of ore in a cargo box:

[0040] Transverse wire ropes arranged at intervals are laid above the bottom plate for carrying heavy objects in the cargo box body;

[0041] The pressure borne by the transverse wire ropes is measured by the first pressure detection component. When heavy objects are loaded into the cargo box, the industrial control computer controls the tensioning mechanism to contract and tighten the transverse wire ropes, thereby reducing the impact of the heavy objects on the cross beam and the longitudinal beam at the bottom of the cargo box;

[0042] As the pressure increases, the height of the transverse wire ropes is gradually depressed. At the same time, the industrial control computer controls the reel in the downward pulling mechanism to rotate. When the reel rotates, the height of the longitudinal wire ropes decreases, thereby driving the vertical wire ropes to pull the transverse wire ropes downward until the transverse wire ropes fall into the gaps between the cross beams and between the cross beam and the longitudinal beam at the lowest end, and the cross beam and the longitudinal beam bear the pressure of the heavy objects;

[0043] When the heavy objects in the cargo box are unloaded, the second pressure detection component transmits the detected minimum pressure value to the industrial control computer. The industrial control computer controls the tensioning mechanism and the downward pulling mechanism to start, makes the tensioning mechanism contract, and at the same time controls the reel to rotate reversely to gradually tighten the transverse wire ropes below the upper surface of the bottom plate until the transverse wire ropes return to the initial position. So far, one cycle of work is completed.

[0044] Compared with the prior art, the beneficial effects of the present invention are:

[0045] Before the heavy object is loaded into the carriage, the tensioning mechanism tightens the transverse wire rope to reduce the impact of the heavy object on the bottom cross beam and longitudinal beam of the carriage. As the heavy object is loaded into the carriage, the tension of the transverse wire rope increases, and the heavy object is slowly placed on the cross beam through the downward pulling mechanism, thus realizing the rigid-flexible adaptive unloading of goods for the mining dump truck. The invention is easy to disassemble, convenient to install, can freely change the force-bearing length of the rope, and has reliable performance, with wide practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The drawings, as part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention, but do not constitute an improper limitation to the present invention. Obviously, the drawings in the following description are only some embodiments, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0047] In the drawings:

[0048] Figure 1 It is a top view of the cargo box structure of the present invention for rigid-flexible adaptive and balanced bearing of ore.

[0049] Figure 2 It is a left view of the cargo box structure of the present invention for rigid-flexible adaptive and balanced bearing of ore.

[0050] Figure 3 It is an axonometric view of the cargo box structure of the present invention for rigid-flexible adaptive and balanced bearing of ore.

[0051] Figure 4 It is a structural diagram of the automatic tensioning device of the present invention.

[0052] Figure 5 It is a three-dimensional view of the built-in double-wedge fastener of the present invention;

[0053] Figure 6 It is a two-dimensional view of the built-in double-wedge fastener of the present invention (a is the front view, b is the top view, and c is the view of the A-A plane).

[0054] Figure 7 It is a front view of the cargo box structure of the present invention for rigid-flexible adaptive and balanced bearing of ore.

[0055] In the figure: 1 - guard plate, 2 - front plate, 3 - built-in double-wedge fastener, 3-1 - wedge block, 3-2 - locking screw, 3-3 - pressing plate, 3-4 - housing, 3-5 - threaded plate, 4 - side plate, 5 - side beam, 6 - cross beam, 7 - longitudinal beam, 8 - transverse steering component, 8-1 - anti-friction wheel, 8-2 - limiting wheel, 9 - steering fixed pulley, 10 - tensioning mechanism, 11 - transverse wire rope, 12 - downward pulling mechanism, 12-1 - vertical wire rope, 12-2 - fixed pulley, 12-3 - longitudinal wire rope, 12-4 - drum.

[0056] It should be noted that these drawings and textual descriptions are not intended to limit the scope of the concept of the present invention in any way, but to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0057] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but not to limit the scope of the present invention.

[0058] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0059] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] As Figure 1 , Figure 2 , Figure 3 , Figure 4 shown, a cargo box for rigid-flexible adaptive balanced loading of ore includes a cargo box main body, a plurality of wire rope assemblies, and a downward pulling mechanism 12; the plurality of wire rope assemblies are arranged at intervals and cover the bottom plate in the cargo box main body for carrying heavy objects, and the wire rope assemblies can automatically tighten the wire ropes before the heavy objects fall into the cargo box, so that the heavy objects do not contact the bottom plate; the downward pulling mechanism 12 is installed on the bottom surface of the bottom plate of the cargo box main body and is connected to the plurality of wire rope assemblies, and is used to pull the wire ropes in the wire rope assemblies to a position lower than the upper surface of the bottom plate, so that the heavy objects fall onto the bottom plate of the cargo box main body.

[0061] Continue to refer to Figure 1 , Figure 2 , Figure 3 , Figure 4As shown in the figure, the cargo box body includes a guard plate 1, a front plate 2, side plates 4, side beams 5, cross beams 6, and longitudinal beams 7. The side beams 5 are installed on the bottom surface of the side plates 4, and the side beams 5 protrude outward by a preset distance; the cross beams 6 and the longitudinal beams 7 form the bottom plate of the cargo box body. The longitudinal beams 7 are installed on the bottom surface of the cross beams 6, and both ends of the cross beams 6 are respectively connected to the bottom surfaces of the corresponding side beams 5 on both sides.

[0062] Preferred solution: The interval between the cross beams 6 is n times the diameter of the wire rope, where n can be set from 1 to 20. The vertical distance from the cross beams 6 to the longitudinal beams 7 is m times the wire rope, where m can be set from 1 to 20, ensuring that when the horizontal wire rope 11 is at the lowest end, it falls into the gaps between the cross beams 6 and between the cross beams 6 and the longitudinal beams 7.

[0063] Continue to refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown in the figure, the wire rope assembly includes a rope fixing component, a steering fixed pulley 9, a tensioning mechanism 10, a horizontal wire rope 11, and an automatic adjustment control component; the rope fixing component is installed at one side beam 5 of the cargo box body, and the steering fixed pulley 9 is installed at the other side beam 5 of the cargo box body; the tensioning mechanism 10 is installed on the bottom surface of the cross beam 6; one end of the horizontal wire rope 11 is fixed to the rope fixing component, and the other end is wound around the steering fixed pulley 9 and then fixed to the tensioning mechanism 10. The horizontal wire rope 11 is tensioned or relaxed through the tensioning mechanism 10; the automatic adjustment control component is connected to the tensioning mechanism 10 and can automatically adjust the tightness of the horizontal wire rope 11 according to the pressure of the heavy object on the horizontal wire rope 11. It should be noted that a rubber plate is laid on the horizontal wire rope 11 as a lining plate.

[0064] Preferred solution: The tensioning mechanism 10 is a hydraulic cylinder, and the industrial control computer drives the hydraulic pump to pump oil into the hydraulic cylinder to make the hydraulic cylinder contract, thereby gradually tightening the horizontal wire rope.

[0065] Preferred solution: As Figure 5 、 Figure 6 As shown in the figure, the rope fixing component is an internal double-wedge block fastener 3, which includes two symmetrical wedge blocks 3-1, a housing 3-4 for installing the two wedge blocks 3-1, a pressing plate 3-3, and two locking screws 3-2; each of the opposite planes of the two wedge blocks 3-1 is provided with an arc-shaped groove, and the wire rope is passed through between the two arc-shaped grooves; two threaded plates 3-5 are symmetrically provided on the outer side surface of the housing 3-4; a through hole for passing the wire rope is provided in the middle of the pressing plate 3-3, and a bolt hole is provided on each side; the two locking screws 3-2 are respectively passed through the two threaded holes and then tightened into the threaded plates 3-5. After continuously tightening the locking screws 3-2, the wedge blocks 3-1 are pressed by the pressing plate 3-3 to squeeze the wire rope, thereby fixing one end of the horizontal wire rope.

[0066] Further solution: The automatic adjustment control component includes a first pressure sensor, a signal collector, and an industrial control computer. The first pressure sensor is placed between the built-in double-wedge fastener 3 and the inner steel plate of the side beam 5 for real-time monitoring of the tension of the transverse wire rope 11. The signal collector is connected to the first pressure sensor. The industrial control computer is connected to the signal collector, and the signal collector transmits the collected pressure value to the industrial control computer for analysis and processing. Before the heavy object falls into the cargo compartment, the industrial control computer controls the tensioning mechanism to start, which will gradually tighten the transverse wire rope 11. When the first pressure detection component reaches the set first upper limit value, the industrial control computer controls the tensioning mechanism to stop, and the transverse wire rope 11 is in a tensioned state.

[0067] Further solution: The pulling-down mechanism 12 includes a fixed pulley 12-2, a drum 12-4, a longitudinal wire rope 12-3, and a vertical wire rope 12-1. A fixed pulley 12-2 is provided at each end of the longitudinal beam 7 of the cargo compartment main body. The drum 12-4 is installed at the tail end of the bottom plate of the cargo compartment main body. One end of the longitudinal wire rope 12-3 bypasses the fixed pulley 12-2 located in the front of the longitudinal beam 7 and is fixed on the bottom surface of the longitudinal beam 7, and the other end bypasses the fixed pulley 12-2 located in the rear of the longitudinal beam 7 and is wound around the drum 12-4. The vertical wire ropes 12-1 are arranged at intervals between the two fixed pulleys 12-2. The top end is connected to the corresponding transverse wire rope 11 above through a locking button, and the bottom end is connected to the lower longitudinal wire rope 12-3 through a locking button. After the heavy object is loaded into the cargo compartment and falls on the transverse wire rope 11, when the first pressure detection component monitors that the pressure value received by the transverse wire rope 11 reaches the set second upper limit value, the industrial control computer controls the drum 12-4 to rotate. When the drum 12-4 rotates, the height of the longitudinal wire rope 12-3 drops, thereby driving the vertical wire rope 12-1 to pull the transverse wire rope 11 downward.

[0068] Further solution: The automatic adjustment control component further includes a second pressure sensor, which is installed on the upper surface of the longitudinal beam 7. After the heavy object is unloaded, the second pressure detection component transmits the detected lowest pressure value to the industrial control computer. The industrial control computer controls the tensioning mechanism 10 and the pulling-down mechanism 12 to start, causing the tensioning mechanism 10 to contract, and at the same time controlling the drum 12-4 to rotate reversely to gradually tighten the transverse wire rope below the upper surface of the bottom plate until the transverse wire rope 11 returns to its initial position.

[0069] Further solution: The wire rope assembly further includes a transverse steering component 8, which is staggeredly installed on the two side beams 5 of the cargo compartment main body for multiple circumferential steering of the wire rope between the built-in double-wedge fastener 3 and the steering fixed pulley 9.

[0070] Preferred solution: The lateral steering component 8 is composed of an anti-friction wheel 8-1 for supporting and steering the lateral steel wire rope 11 and a limiting wheel 8-2 for limiting the lateral steel wire rope 11; the anti-friction wheel 8-1 and the limiting wheel 8-2 are both connected to the cargo compartment body through a bearing seat, and the lateral steel wire rope 11 is located between the anti-friction wheel 8-1 and the limiting wheel 8-2.

[0071] From the above, we can see that Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the built-in double wedge fastener 3 is fixed to the inner side of the side beam 5. By tightening the locking screw 3-1 on the built-in double wedge fastener 3, the wedge 3-1 is compressed, and then one end of the transverse steel wire rope 11 is fixed, and the other end is connected to the hydraulic tensioning mechanism 10; the turning parts on both sides of the steel wire rope surround the transverse steering component 8 in the side beam 5, and the anti-friction wheel 8-1 and the limiting wheel 8-2 in the transverse steering component 8 are connected to the side beam 5 through the bearing seat. The transverse steel wire rope 11 is located between the anti-friction wheel 8-1 and the limiting wheel 8-2, and the anti-friction wheel 8-1 plays a role in supporting and steering the transverse steel wire rope 11. The limiting wheel 8-2 plays a role in limiting the transverse steel wire rope 11, preventing the transverse steel wire rope 11 from escaping from the anti-friction wheel 8-1. The steering fixed pulley 9 is fixed to the side beam 5 through a bearing seat, the hydraulic tensioning mechanism 10 is fixed to the bottom surface of the cross beam 6, one end of the transverse wire rope 11 is fixed by the built-in double wedge fastener 3, and the other end bypasses the steering fixed pulley 9 and connects to the hydraulic tensioning mechanism 10 below.

[0072] The present invention also discloses an automatic adjustment method for a cargo compartment to self-adaptively balance the loading of mineral materials:

[0073] Transverse steel wire ropes arranged at intervals are laid above the bottom plate for carrying heavy objects in the cargo compartment body;

[0074] The tension of the transverse steel wire rope is monitored in real time by the first pressure sensor, and the collected data is transmitted to the industrial computer for analysis and processing by the signal collector;

[0075] Before the heavy object falls into the carriage, the industrial computer drives the hydraulic pump to pump oil into the hydraulic cylinder, causing the hydraulic cylinder to contract, thereby gradually tightening the transverse steel wire rope. When the first pressure sensor reaches the set first upper limit value, the hydraulic pump stops pressing, and the transverse steel wire rope is in a tensioned state.

[0076] As the heavy objects are loaded into the carriage, the tension of the transverse steel wire rope increases, and the height of the transverse steel wire rope is gradually lowered. When the tension of the steel wire rope is higher than the second upper limit value set by the industrial computer, the industrial computer controls the drum in the pull-down mechanism to rotate. When the drum rotates, the height of the longitudinal steel wire rope decreases, thereby driving the vertical steel wire rope to pull the transverse steel wire rope downward until the transverse steel wire rope falls into the gap between the crossbeams and between the crossbeams and the longitudinal beams at the lowest end.Figure 7 the position of the dashed line shown

[0077] A second pressure sensor is installed at the bottom of the longitudinal beam. When the heavy load in the carriage is unloaded, the second pressure sensor reaches the lowest value. Thereby, the industrial control computer drives the hydraulic pump to pump oil for the hydraulic cylinder, causing the hydraulic cylinder to contract. At the same time, it controls the reel to rotate reversely, so that the transverse steel wire rope is gradually tightened, and the transverse steel wire rope returns to its initial position. Thus, one cycle of work ends.

[0078] The present invention also discloses a mining dump truck equipped with the above-mentioned carriage that can adaptively balance the load of ore with both rigidity and flexibility.

[0079] In the specification provided herein, a large number of specific details are described. However, it can be understood that the embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures, and technologies are not shown in detail so as not to obscure the understanding of this specification.

[0080] In addition, those skilled in the art can understand that although some embodiments described herein include certain features contained in other embodiments rather than other features, the combination of features of different embodiments also means that it is within the protection scope of the present invention and forms different embodiments. For example, in the above embodiments, those skilled in the art can use them in a combined manner according to the known technical solutions and the technical problems to be solved by this application.

[0081] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of this patent, without departing from the scope of the technical solution of the present invention, can make some changes or modifications using the technical content prompted above into equivalent embodiments of equivalent changes. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change, and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the present invention's solution.

Claims

1. A cargo box with a rigid-flexible adaptive and balanced load-bearing for mineral materials, characterized in that, Comprising: The main body of the cargo box; A plurality of wire rope assemblies, which are arranged at intervals and cover the bottom plate of the cargo box main body for carrying heavy objects, and the wire rope assemblies can automatically tighten the wire ropes before the heavy objects fall into the cargo box, so that the heavy objects do not contact the bottom plate; A pulling-down mechanism, which is installed on the bottom surface of the bottom plate of the cargo box main body and is connected to the plurality of wire rope assemblies, and is used to pull down the wire ropes in the wire rope assemblies to a position lower than the upper surface of the bottom plate, so that the heavy objects fall onto the bottom plate of the cargo box main body; The wire rope assembly includes: A rope fixing part, which is installed at an outer edge of the cargo box main body; A longitudinal steering part, which is installed at the other outer edge of the cargo box main body; A tensioning mechanism, which is installed on the bottom surface of the bottom plate of the cargo box main body; A transverse wire rope, one end of which is fixed to the rope fixing part, and the other end is wound around the longitudinal steering part and then fixed to the tensioning mechanism, and the transverse wire rope is tensioned or relaxed through the tensioning mechanism; An automatic adjustment control part, which is connected to the tensioning mechanism and can automatically tighten the wire rope before the heavy object falls into the cargo box; The automatic adjustment control part includes: A first pressure detection part, which is installed at the rope fixing part and is used to monitor the tension of the transverse wire rope in real time; A signal collector, which is connected to the first pressure detection part; An industrial control computer, which is connected to the signal collector, and the signal collector transmits the collected pressure value to the industrial control computer for analysis and processing; before the heavy object falls into the cargo box, the industrial control computer controls the tensioning mechanism to start, which will gradually tighten the transverse wire rope. When the first pressure detection part reaches the set first upper limit value, the industrial control computer controls the tensioning mechanism to stop, and the transverse wire rope is in a tensioned state.

2. The cargo box for rigid-flexible adaptive balanced bearing of mineral materials according to claim 1, wherein, The pulling-down mechanism includes: Fixed pulleys, one is arranged at each end of any longitudinal line on the bottom surface of the bottom plate of the cargo box main body; A drum, which is installed at the tail end of the bottom plate of the cargo box main body; A longitudinal wire rope, one end of which bypasses the fixed pulley at the front of the bottom plate and is fixed to the bottom surface of the bottom plate, and the other end bypasses the fixed pulley at the rear of the bottom plate and is wound around the drum; Vertical wire ropes, which are arranged at intervals between the two fixed pulleys, the top ends are connected to the corresponding upper transverse wire ropes through locking buttons, and the bottom ends are connected to the lower longitudinal wire ropes through locking buttons; after the heavy object is loaded into the cargo box and falls on the transverse wire rope, when the first pressure detection part monitors that the pressure value received by the transverse wire rope reaches the set second upper limit value, the industrial control computer controls the drum to rotate. When the drum rotates, the height of the longitudinal wire rope drops, thereby driving the vertical wire rope to pull down the transverse wire rope.

3. The cargo box for rigid-flexible adaptive balanced load bearing of mineral materials according to claim 2, wherein The automatic adjustment control part further includes: A second pressure detection part, which is installed on the upper surface of the bottom plate of the cargo box main body. After the heavy object is unloaded, the second pressure detection part transmits the detected lowest pressure value to the industrial control computer, and the industrial control computer controls the tensioning mechanism and the pulling-down mechanism to start, so that the tensioning mechanism contracts, and at the same time controls the drum to rotate reversely, and gradually tightens the transverse wire rope lower than the upper surface of the bottom plate until the transverse wire rope returns to the initial position.

4. A cargo box for rigid-flexible adaptive balanced load bearing of mineral materials according to claim 1, characterized in that, The wire rope assembly further includes: The transverse steering components are staggeredly installed at the two outer side edges of the cargo compartment body, and are used to perform multiple circular steering of the steel wire rope between the rope fixing component and the longitudinal steering component.

5. The cargo box for rigid-flexible adaptive balanced load bearing of mineral materials according to claim 4, characterized in that: The transverse steering component is composed of an anti-friction wheel for supporting and steering the transverse steel wire rope and a limiting wheel for limiting the transverse steel wire rope; The anti-friction wheel and the limiting wheel are both connected to the cargo compartment body through a bearing seat, and a transverse steel wire rope is located between the anti-friction wheel and the limiting wheel.

6. The cargo box for rigid-flexible adaptive balanced load bearing of mineral materials according to claim 1, wherein: The rope fixing component is a built-in double wedge fastener, comprising: Two symmetrical wedges, each with an arc groove on the planes facing each other, and the space between the two arc grooves is used to insert the wire rope; A housing for mounting two wedges, wherein two threaded plates are symmetrically arranged on the outer side of the housing; A pressure plate, wherein a through hole is provided in the middle for inserting the steel wire rope, and a bolt hole is provided on each side; Two locking screws are respectively inserted into the two threaded holes and then tightened in the threaded plate. After the locking screws are continuously tightened, the wedge block is pressed and squeezed through the pressure plate to squeeze the wire rope, thereby fixing one end of the transverse wire rope.

7. A cargo box for rigid-flexible adaptive balanced load bearing of mineral materials according to claim 1, characterized in that: The cargo compartment body includes a guard plate, a front plate, side plates, side beams, a cross beam and a longitudinal beam; Wherein, the side beam is installed on the bottom surface of the side plate, and the side beam protrudes outward by a preset distance, and the rope fixing component, the longitudinal steering component and the lateral steering component in the wire rope assembly are installed on the protruding part of the side beam; The cross beam and the longitudinal beam constitute the bottom plate of the cargo compartment body, the longitudinal beam is installed on the bottom surface of the cross beam, and the two ends of the cross beam are respectively connected to the bottom surfaces of the corresponding side beams on both sides.

8. The cargo box for rigid-flexible adaptive balanced bearing of mineral materials according to claim 7, characterized in that: The interval between the cross beams is n times the diameter of the steel wire rope, and n can be set to 1-20; the vertical distance of the cross beam above the longitudinal beam is m times the steel wire rope, and m can be set to 1-20.

9. The cargo box for rigid-flexible adaptive balanced load bearing of mineral materials according to claim 7, characterized in that: There are two longitudinal beams, which are symmetrically arranged on both sides of the longitudinal center line of the bottom plate, and a pull-down mechanism is installed on the longitudinal beams.

10. A mining dump truck, characterized in that: A cargo compartment equipped with the rigid-flexible adaptive balanced load-bearing mineral material as described in any one of claims 1 to 9.

11. An automatic adjustment method for a cargo compartment to self-adaptively balance the loading of mineral materials, characterized in that: Transverse steel wire ropes arranged at intervals are laid above the bottom plate for carrying heavy objects in the cargo compartment body; The pressure of the transverse steel wire rope is measured by the first pressure detection component. When a heavy object is loaded into the cargo compartment, the industrial computer controls the tensioning mechanism to contract and tighten the transverse steel wire rope, thereby reducing the impact of the heavy object on the bottom crossbeam and longitudinal beam of the cargo compartment; As the pressure increases, the height of the transverse steel wire rope is gradually lowered. At the same time, the industrial computer controls the drum in the pull-down mechanism to rotate. When the drum rotates, the height of the longitudinal steel wire rope decreases, thereby driving the vertical steel wire rope to pull the transverse steel wire rope downward until the transverse steel wire rope falls into the gap between the crossbeams and between the crossbeams and the longitudinal beams at the lowest end, and the pressure of the heavy objects is borne by the crossbeams and the longitudinal beams. When the heavy objects in the cargo compartment are unloaded, the second pressure detection component transmits the lowest detected pressure value to the industrial computer. The industrial computer controls the tensioning mechanism and the pull-down mechanism to start, causing the tensioning mechanism to contract. At the same time, it controls the reel to rotate in the opposite direction, gradually tightening the transverse steel wire rope below the upper surface of the bottom plate until the transverse steel wire rope returns to its initial position, thereby completing one cycle of work.

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