Quick discharging device of dumper

Abstract

The invention relates to the technical field of unloading conveyors, and discloses a quick unloading device of a dumper, which comprises an unloading conveying belt main body and a driving source, the unloading conveying belt main body is mounted on the inner bottom wall of a dumper container and is used for conveying materials from the inside of the dumper container to a preset unloading position, and the driving source is used for driving the unloading conveying belt main body to rotate; the driving end of the driving source is connected with the unloading conveying belt main body, and the unloading auxiliary mechanism is used for increasing the unloading speed of the unloading conveying belt main body. According to the discharging auxiliary mechanism, the pushing component is driven by the transmission component to circularly move upwards, downwards and horizontally in the container of the dumper in sequence, so that the pushing component can be inserted into the container from the upper part of a material, and the pushing component assists in pushing the material to move; therefore, the materials on the upper layer can move along with the discharging conveying belt body and are finally discharged, the purpose of increasing the discharging speed of the materials is achieved, and the discharging time is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of unloading conveyors, and more particularly to a quick unloading device for a dump truck. Background Art

[0002] A dump trailer generally includes a body, a cargo box and an unloading mechanism, among which the unloading mechanism generally has a hydraulic cylinder lifting unloading method and a chain unloading method. For the chain unloading method, it mainly relies on the chain and the conveyor belt on it to achieve the sealing of the bottom of the car body and the translational unloading of the materials in the car body. Compared with the traditional hydraulic cylinder unloading method, the chain unloading mechanism can achieve unloading without lifting the entire car body, and has the advantages of safety, reliability and high unloading efficiency, so it has been widely promoted and applied.

[0003] In the prior art, such as publication number CN112478626A, a chain-type unloading mechanism for a dump trailer is disclosed, including a plurality of chains arranged at intervals, and a plurality of conveyor belts covering the chains are sequentially arranged on the chains, one end of the conveyor belt is mounted on a belt beam, and the other end is a free end, the belt beam is detachably arranged on the chain, a limiting protrusion is provided on the upper end of an outer link plate in the chain, and a limiting groove cooperating with the limiting protrusion is provided on the belt beam.

[0004] Although the above-mentioned unloading device solves the problems of the existing chain-type unloading mechanism being inconvenient to disassemble and difficult to maintain and repair, it still has certain shortcomings. For example, when unloading, the conveyor belt can drive the material that is in direct contact with it, but its driving effect on the material on the upper layer is weak, so that the conveyor belt has a small single unloading amount, resulting in a relatively slow overall unloading speed and a long unloading time. Summary of the invention

[0005] The purpose of the present invention is to provide a quick unloading device for a dump truck to solve the above-mentioned technical problems.

[0006] The present invention solves the above-mentioned technical problems through the following technical solutions:

[0007] The present invention provides a quick unloading device for a dump truck, comprising: a unloading conveyor belt body and a driving source, wherein the unloading conveyor belt body is installed on the inner bottom wall of the dump truck cargo box and is used to transport materials from the dump truck cargo box to a preset unloading position, and the driving end of the driving source is connected to the unloading conveyor belt body, and the quick unloading device for a dump truck further comprises: an unloading auxiliary mechanism for accelerating the unloading speed of the unloading conveyor belt body, and the unloading auxiliary mechanism comprises a pushing component, a transmission component and a lifting driving component;

[0008] The pushing component has a telescopic function in a direction perpendicular to the top surface of the unloading conveyor belt body, and is arranged above the discharge end of the unloading conveyor belt body to push the materials at the discharge end of the unloading conveyor belt body outward in a concentrated manner;

[0009] The transmission component is connected to the fixed end of the pushing component, and is used to drive the pushing component as a whole to cyclically move up, down and horizontally in the cargo box of the dump truck in sequence, firstly move the pushing component as a whole up to a preset position, then move the pushing component as a whole down and insert it into the material, and finally move the pushing component as a whole horizontally along the conveying direction of the unloading conveyor belt body to push the material out of the unloading conveyor belt body;

[0010] The lifting drive component is respectively connected to the transmission component and the telescopic end of the pushing component. During the overall upward movement of the pushing component, the lifting drive component is used to drive the telescopic end of the pushing component to move upward and retract, so that the telescopic end of the pushing component moves to a position above the material. During the overall downward movement of the pushing component, the lifting component is used to drive the telescopic end of the pushing component to move downward and reset.

[0011] As a further optimization scheme of the present invention, the pushing component includes a support plate and several pushing plates, the support plate is arranged parallel to the top of the top surface of the unloading conveyor belt body, one end of the support plate is connected to the transmission component, and several pushing plates are evenly slidably installed on one side of the pushing plate along the length direction of the support plate, and the pushing plate is perpendicular to the top surface of the unloading conveyor belt body, and several pushing plates are commonly connected to the lifting drive component.

[0012] As a further optimization scheme of the present invention, the number of the transmission components is set to two, and the two transmission components are symmetrically distributed on both sides of the unloading conveyor belt body. The transmission components include a connecting frame, a first transmission assembly and a second transmission assembly. The connecting frame is fixed to the top of the unloading conveyor belt body, one end of the first transmission assembly is connected to the driving end of the driving source, and the other end is connected to the second transmission assembly. The second transmission assembly is arranged on one side of the connecting frame and is connected to the end of the support plate. The second transmission assembly is used to drive the support plate to move up, down and translate in sequence.

[0013] As a further optimization solution of the present invention, the first transmission assembly includes two first pulleys, one of which is rotatably mounted on one side of the connecting frame, and the other first pulley is fixedly sleeved on the driving end of the driving source, and the two first pulleys are connected by a first transmission belt.

[0014] The second transmission assembly includes three second pulleys, which are distributed in an isosceles triangle and rotatably mounted on one side of the connecting frame. The three second pulleys are connected to each other through a second transmission belt, wherein the rotating end of one of the second pulleys is fixed to one of the first pulleys, and the end of the support plate is rotatably connected to the outer side of the second transmission belt.

[0015] As a further optimization scheme of the present invention, the lifting drive component includes a connecting rod, two first gears, two tooth plate groups and a plurality of second gears. The connecting rod is rotatably installed inside the support plate, and its two ends respectively pass through the two ends of the support plate and are fixed to the two first gears. The two tooth plate groups are respectively arranged on one side of the two support frame bodies, and the tooth plate group includes two matching tooth plates matched with the first gears. The two matching tooth plates are both fixed on one side of the connecting frame body and are respectively parallel to the two oblique sides of the second transmission belt. A plurality of second gears are correspondingly arranged on one side of a plurality of push plates, and a plurality of second gears are all fixed to the outer side of the connecting rod. A matching tooth groove matched with the second gear is provided on one side of the push plate, and the second gear is meshed with the matching tooth groove.

[0016] As a further optimization scheme of the present invention, the pushing component also includes a plurality of rotating components, and the plurality of rotating components are connected one-to-one with a plurality of pushing plates. The rotating components include a rotating rod, a contact shaft and a drill bit. The rotating rod is rotatably installed inside the pushing plate, and its bottom end passes through the bottom of the pushing plate and is fixed to the top of the drill bit. A spiral groove matching the contact shaft is provided on the outer side of the rotating rod, and a clearance groove is provided on one side of the pushing plate. The contact shaft is fixed to one side of the support plate, and its end passes through the clearance groove and is slidably connected to the inner side of the spiral groove.

[0017] As a further optimization solution of the present invention, the drill bit is conical, and the cross-sectional diameter of the drill bit is greater than the width of the push plate.

[0018] As a further optimization scheme of the present invention, the pushing component also includes a plurality of closing components, and the plurality of closing components are connected one-to-one with a plurality of pushing plates. The closing components include a movable plate, an extrusion shaft and a connecting spring. A shrinkage groove is provided on one side of the pushing plate, and a side of the movable plate is slidably connected to the shrinkage groove. An extrusion slope is provided on the top of the movable plate. The extrusion shaft slides on one side of the supporting plate, and its end portion slides in contact with the extrusion slope. The connecting spring is fixed between the movable plate and the shrinkage groove.

[0019] As a further optimization solution of the present invention, the bottom of the movable plate is set to be conical, the number of the connecting springs is two, and the two connecting springs are symmetrically distributed in the contraction groove up and down.

[0020] As a further optimization scheme of the present invention, the closing assembly also includes a driving plate and two adjusting rotating rods, both ends of the driving plate are slidably connected to one side of the supporting plate, the ends of several of the extrusion shafts are fixed to one side of the driving plate, the two adjusting rotating rods are respectively threadedly connected to the two ends of the driving plate, and the bottom end of the adjusting rotating rod is rotatably connected to the supporting plate.

[0021] The beneficial effects of the present invention are:

[0022] The present invention provides an auxiliary unloading mechanism, and drives the pushing component to cyclically move up, down and horizontally in the cargo box of the dump truck through the transmission component, so that the pushing component can be inserted into the interior of the material from above, and the material is pushed to move with the help of the pushing component, so that the material on the upper layer can also follow the movement of the unloading conveyor belt main body and finally be discharged, so as to achieve the purpose of accelerating the material unloading speed, thereby shortening the unloading time and better meeting the actual unloading operation needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of a state in which a quick unloading device for a dump truck provided by the present invention is installed on a cargo box of the dump truck;

[0024] Figure 2 It is a structural schematic diagram of a quick unloading device for a dump truck provided by the present invention;

[0025] Figure 3 It is a structural schematic diagram of a pushing component in a quick unloading device for a dump truck provided by the present invention;

[0026] Figure 4 It is a structural schematic diagram of a transmission component in a quick unloading device for a dump truck provided by the present invention;

[0027] Figure 5 It is a structural schematic diagram of the local position of the transmission components in a quick unloading device for a dump truck provided by the present invention;

[0028] Figure 6 It is a structural schematic diagram of a lifting and driving component in a quick unloading device for a dump truck provided by the present invention;

[0029] Figure 7 It is a structural schematic diagram of a second embodiment of a quick unloading device for a dump truck provided by the present invention;

[0030] Figure 8 It is a structural schematic diagram of a rotating assembly in a quick unloading device for a dump truck provided by the present invention;

[0031] Fig. 9 The present invention Figure 8 A local enlarged schematic diagram of the middle A;

[0032] Fig.10 It is a structural schematic diagram of a third embodiment of a quick unloading device for a dump truck provided by the present invention;

[0033] Fig.11 It is a schematic diagram of the structure between a closing component and a pushing plate in a quick unloading device for a dump truck provided by the present invention;

[0034] Fig.12 The present invention is a schematic structural diagram of a closing component in a quick unloading device for a dump truck.

[0035] In the figure: 1. unloading conveyor belt body; 2. driving source; 3. unloading auxiliary mechanism; 31. pushing component; 311. supporting plate; 312. pushing plate; 313. rotating assembly; 3131. rotating rod; 3132. contact shaft; 3133. drill bit; 3134. spiral groove; 3135. giving way groove; 314. closing assembly; 3141. movable plate; 3142. extrusion shaft; 3143. connecting spring; 3144. contraction groove; 3145. driving plate; 3146. adjusting rotating rod; 32. transmission component; 321. connecting frame; 322. first pulley; 323. first transmission belt; 324. second pulley; 325. second transmission belt; 33. lifting driving component; 331. connecting rotating rod; 332. first gear; 333. matching tooth plate; 334. second gear; 335. matching tooth groove; 4. dump truck cargo box. DETAILED DESCRIPTION

[0036] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0037] Embodiment 1

[0038] Please refer to Figure 1 A quick unloading device for a dump truck comprises: a unloading conveyor belt body 1, a driving source 2 and an unloading auxiliary mechanism 3. The unloading conveyor belt body 1 can be detachably mounted on the inner bottom wall of a dump truck cargo box 4, and is used to transport materials from the dump truck cargo box 4 to a preset unloading position. The driving end of the driving source 2 is connected to the unloading conveyor belt body 1. The driving source 2 can be a servo motor. When unloading, the driving source 2 rotates to drive the unloading conveyor belt to move, thereby driving the material located on its top surface to make the material flow out of the dump truck cargo box 4.

[0039] Please refer to Figure 1 to Figure 2In order to solve the problem of slow unloading speed of the unloading device, the present invention designs an unloading auxiliary mechanism 3 for accelerating the unloading speed of the unloading conveyor belt body 1, specifically: the unloading auxiliary mechanism 3 includes a pushing component 31, a lifting driving component 33 and two transmission components 32; wherein the pushing component 31 has a telescopic function in a direction perpendicular to the top surface of the unloading conveyor belt body 1, and is arranged above the discharge end of the unloading conveyor belt body 1, and is used to push the materials at the discharge end of the unloading conveyor belt body 1 outward in a concentrated manner; the transmission component 32 is connected to the fixed end of the pushing component 31, and is used to drive the pushing component 31 as a whole to circulate in the dump truck cargo box 4 to move up, down and horizontally in sequence. The moving action first moves the pushing component 31 as a whole up to a preset position, then moves the pushing component 31 as a whole down and inserts it into the material, and finally moves the pushing component 31 as a whole horizontally along the conveying direction of the unloading conveyor belt body 1 to push the material out of the unloading conveyor belt body 1; the lifting and lowering driving component 33 is respectively connected to the transmission component 32 and the telescopic end of the pushing component 31. In the process of the pushing component 31 moving up as a whole, the lifting and lowering driving component 33 is used to drive the telescopic end of the pushing component 31 to move upward and retract, so that the telescopic end of the pushing component 31 moves to a position above the material, and in the process of the pushing component 31 moving down as a whole, the lifting and lowering component is used to drive the telescopic end of the pushing component 31 to move downward and reset.

[0040] For details, please refer to Figures 2 to 4 The pushing component 31 includes a support plate 311 and nineteen pushing plates 312. The support plate 311 is arranged parallel to the top of the top surface of the unloading conveyor belt body 1. One end of the support plate 311 is connected to the transmission component 32. The nineteen pushing plates 312 are evenly slidably installed on one side of the pushing plate 312 along the length direction of the support plate 311. Of course, the number of pushing plates 312 is not limited to nineteen, and can also be adjusted according to actual usage requirements. The pushing plates 312 are perpendicular to the top surface of the unloading conveyor belt body 1, and the nineteen pushing plates 312 are commonly connected to the lifting drive component 33.

[0041] The two transmission components 32 are symmetrically distributed on both sides of the unloading conveyor belt body 1. The transmission component 32 includes a connecting frame 321, a first transmission assembly and a second transmission assembly. The connecting frame 321 is fixed to the top of the unloading conveyor belt body 1. One end of the first transmission assembly is connected to the driving end of the driving source 2, and the other end is connected to the second transmission assembly. The second transmission assembly is arranged on one side of the connecting frame 321, which is connected to the end of the support plate 311. The second transmission assembly is used to drive the support plate 311 to move up, down and horizontally in sequence. Specifically, the first transmission assembly includes two first pulleys 322, one of which is a first The pulley 322 is rotatably mounted on one side of the connecting frame 321, and another first pulley 322 is fixedly mounted on the driving end of the driving source 2, and the two first pulleys 322 are connected to each other through a first transmission belt 323; the second transmission assembly includes three second pulleys 324, the three second pulleys 324 are distributed in an isosceles triangle, and are rotatably mounted on one side of the connecting frame 321, and the three second pulleys 324 are connected to each other through a second transmission belt 325, the rotating end of one of the second pulleys 324 is fixed to one of the first pulleys 322, and the end of the support plate 311 is rotatably connected to the outer side of the second transmission belt 325.

[0042] It should be noted that when the transmission component 32 drives the pushing component 31 to move to assist in unloading, the driving source 2 rotates to rotate the connected first pulley 322. Under the transmission action of the first transmission belt 323, the two first pulleys 322 can rotate synchronously, thereby driving the second pulley 324 connected thereto to rotate. Under the transmission action of the second transmission belt 325, the three second pulleys 324 can rotate synchronously. Under the driving action of the two second transmission belts 325, the two ends of the support plate 311 first begin to move slowly upward, and the pushing plate 312 moves upward with the support plate 311. Since the lifting height of the transmission component 32 is limited and is restricted by the cargo box 4 of the dump truck, at this time, it is necessary to further drive the pushing plate 312 to move and retract upward through the transmission component 32. After the support plate 311 moves to the highest point, the pushing plate 312 is also in a fully retracted state. The bottom of the retracted pushing plate 312 can be above the material. Afterwards, as the second transmission belt 325 continues to move, it begins to drive the support plate 311 and The push plate 312 moves downward, and at the same time, the transmission component 32 drives the push plate 312 to extend downward and reset, so that the bottom of the push plate 312 begins to insert into the material. After the support plate 311 reaches the lowest point, the second transmission belt 325 starts to drive the support plate 311 to move horizontally, so that the push plate 312 can push the material on its front side to accelerate to the discharge end of the unloading conveyor belt body 1. After the support plate 311 reaches the initial position, the material is pushed out of the dump truck cargo box 4, and then continues to move through the second transmission belt 325 to drive the support plate 311 to move horizontally. The support plate 311 and the push plate 312 move up again, and the action is circulated until all the materials are discharged from the dump truck cargo box 4, that is, the unloading is completed. The push component 31 is used to assist in pushing the material movement, so that the upper layer of the material can also move with the unloading conveyor belt body 1 and be finally discharged, so as to achieve the purpose of accelerating the material unloading speed. In addition, when loading, the push plate 312 can be controlled to perform a reciprocating translational action, and the material can be evenly spread to keep the material in a flat state, which can replace the manual spreading operation.

[0043] Please refer to Figures 5 and 6The lifting drive component 33 includes a connecting rod 331, two first gears 332, two tooth plate groups and nineteen second gears 334. The connecting rod 331 is rotatably installed inside the support plate 311, and its two ends respectively pass through the two ends of the support plate 311 and are fixed to the two first gears 332. The two tooth plate groups are respectively arranged on one side of the two support frames, and the tooth plate group includes two matching tooth plates 333 that are adapted to the first gears 332. The two matching tooth plates 333 are both fixed to one side of the connecting frame body 321 and are respectively parallel to the two oblique sides of the second transmission belt 325. The nineteen second gears 334 are correspondingly arranged on one side of the nineteen pushing plates 312, and the nineteen second gears 334 are all fixed to the outer side of the connecting rod 331. One side of the pushing plate 312 is provided with a matching tooth groove 335 that is adapted to the second gear 334, and the second gear 334 is meshed with the matching tooth groove 335.

[0044] It should be noted that the process of the lifting driving component 33 driving the push plate 312 to extend and retract is that when the support plate 311 follows the second transmission belt 325 to move upward, the first gear 332 begins to mesh with the first matching tooth plate 333, and as the support plate 311 moves, the first gear 332 can rotate counterclockwise along one side of the first matching tooth plate 333, and the connecting rod 331 follows the rotation of the first gear 332, and drives the nineteen second gears 334 to rotate synchronously, and the nineteen push plates 312 move upward synchronously under the rotation of the second gears 334. After the support plate 311 reaches the highest point, the first gear 332 separates from the first matching tooth plate 333, and the push plate 312 moves upward synchronously. 12 is in a completely retracted state, with its bottom above the material, and then the support plate 311 moves downward with the second transmission belt 325, so that the first gear 332 begins to engage with another matching tooth plate 333, and the first gear 332 can be driven to rotate in a clockwise direction, thereby driving the push plate 312 to move downward and reset synchronously, so that the push plate 312 follows the support plate 311 to synchronously extend and retract. When the lifting height of the transmission component 32 is limited, the lifting drive component 33 is used in conjunction with the transmission component 32, and the driving action of the transmission component 32 can be used to synchronously complete the extension and retraction action of the push plate 312, so that the push plate 312 can smoothly reach above the material, which is convenient for it to be inserted downward into the material.

[0045] Embodiment 2

[0046] Please refer to Figures 7 to 9In order to facilitate the rapid insertion of the pushing plate 312 into the material and reduce the obstruction of the material, the present invention further provides a pushing component 31, specifically: the pushing component 31 also includes nineteen rotating components 313, and the nineteen rotating components 313 are connected to the nineteen pushing plates 312 in a one-to-one manner. The rotating component 313 includes a rotating rod 3131, a contact shaft 3132 and a drill bit 3133. The rotating rod 3131 is rotatably installed inside the pushing plate 312, and its bottom end passes through the bottom of the pushing plate 312 and is fixed to the top of the drill bit 3133. The drill bit 3133 is conical, and the cross-sectional diameter of the drill bit 3133 is larger than the width of the pushing plate 312. A spiral groove 3134 adapted to the contact shaft 3132 is provided on the outer side of the rotating rod 3131, and a clearance groove 3135 is provided on one side of the pushing plate 312. The contact shaft 3132 is fixed to one side of the supporting plate 311, and its end passes through the clearance groove 3135 and is slidably connected to the inner side of the spiral groove 3134.

[0047] It should be noted that in the process of inserting the push plate 312 into the material, the push plate 312 starts to move downward under the driving action of the lifting drive component 33. At the same time, the rotating rod 3131 moves downward with the push plate 312. Since the position of the contact shaft 3132 remains unchanged, its end can generate a rotational force on the spiral groove 3134 after contacting the moving spiral groove 3134, so that the rotating rod 3131 and the drill bit 3133 can rotate together. The material can be drilled quickly by rotating the drill bit 3133, and then the push plate 312 follows the drill bit 3133 to enter the material. In this way, the resistance caused by the material to the push plate 312 is reduced, so that the push plate 312 can be smoothly inserted into the material and the speed of inserting the push plate 312 into the material is accelerated.

[0048] Embodiment 3

[0049] Please refer to Figure 10 to Figure 11In the above scheme, due to the gap between the pushing plates 312, when the material size is small, the material will directly pass through the gap, so that the auxiliary pushing effect of the pushing plate 312 will be weakened. Therefore, in order to further enhance the pushing effect of the pushing plate 312, the present invention continues to optimize the above scheme, specifically: the pushing component 31 also includes nineteen closing components 314, and the nineteen closing components 314 are connected to the nineteen pushing plates 312 in a one-to-one correspondence. The closing components 314 include a movable plate 3141, an extrusion shaft 3142 and two connecting springs 3143. A contraction groove 3144 is provided on one side of the pushing plate 312, and one side of the movable plate 3141 slides with the contraction groove 3144 The movable plate 3141 is dynamically connected, and an extrusion slope is provided on the top of the movable plate 3141, and the bottom of the movable plate 3141 is set as a cone, which can reduce the resistance of inserting materials. After the movable plate 3141 is in the expanded state, it just blocks the gap between the two push plates 312. In order to reduce the resistance of the movable plate 3141 to insert materials, the thickness of the movable plate 3141 is generally set at 2-4 mm, and the present invention is preferably 2 mm. The extrusion shaft 3142 slides on one side of the support plate 311, and its end slides in contact with the extrusion slope. The connecting spring 3143 is fixed between the movable plate 3141 and the contraction groove 3144, and the two connecting springs 3143 are symmetrically distributed in the contraction groove 3144.

[0050] It should be noted that when the push plate 312 is in the expanded state, the movable plate 3141 is also in the expanded state. When the push plate 312 moves upward, the movable plate 3141 moves upward with the push plate 312. At this time, when the extrusion slope moves upward, its contact surface with the contact shaft 3132 changes. The extrusion force of the contact shaft 3132 can drive the movable plate 3141 to shrink into the shrinkage groove 3144 and squeeze the connecting spring 3143 to shrink. After the contact shaft 3132 is separated from the extrusion slope, the movable plate 3141 is in the maximum shrinkage state, and the contact shaft 3132 continues to contact the side of the movable plate 3141, so that the movable plate 3141 continues to maintain the shrinkage state. State, at this time, the gap of the push plate 312 is opened, and when the movable plate 3141 moves downward with the push plate 312, the contact shaft 3132 contacts the extrusion slope again, and under the elastic force of the connecting spring 3143, the movable plate 3141 can be driven to reset and the gap of the push plate 312 is blocked again. When the push plate 312 pushes the material to move, the material can be prevented from passing through the gap, so as to ensure the auxiliary pushing effect of the push plate 312 on the material, and the closing component 314 can follow the use state of the push plate 312 and synchronously adapt to the changes to realize dynamic control of the gap of the push plate 312, without setting the driving source 2 and the control source for use.

[0051] Please refer to Figures 10 to 12In order to further adapt to materials of different particle sizes and realize the adjustment function of the gap of the push plate 312, the present invention continues to improve the above scheme, specifically: the closing component 314 also includes a driving plate 3145 and two adjusting rotating rods 3146, both ends of the driving plate 3145 are slidingly connected to one side of the support plate 311, the ends of the nineteen extrusion shafts 3142 are fixed to one side of the driving plate 3145, the two adjusting rotating rods 3146 are respectively threadedly connected to the two ends of the driving plate 3145, and the bottom end of the adjusting rotating rod 3146 is rotatably connected to the support plate 311.

[0052] When it is necessary to adjust the initial gap of the push plate 312, by rotating the two adjusting rods 3146, the support plate 311 can be driven to move downward, so that the nineteen extrusion shafts 3142 move downward synchronously, and the movable plate 3141 shrinks into the shrinkage groove 3144 under the extrusion action of the extrusion shaft 3142, so that the gap size of the push plate 312 changes. After the gap reaches the required size, stop rotating the adjusting rod 3146, and the driving plate 3145 no longer moves and remains in a fixed state. At this time, the initial gap of the push plate 312 is adjusted to meet the current use requirements of materials with different particle sizes, further improving the flexibility of the push plate 312 when used.

[0053] An example of the present specific implementation mode is described above, but the present embodiment is not limited to the above-mentioned specific implementation mode, which is merely illustrative and not restrictive. A person skilled in the art may make many forms inspired by the present embodiment, all of which are protected by the present embodiment.

Claims

1. A quick unloading device for a dump truck, include: A discharge conveyor belt body (1) and a driving source (2), wherein the discharge conveyor belt body (1) is installed on the inner bottom wall of a dump truck cargo box (4) and is used to transport materials from the dump truck cargo box (4) to a preset discharge position, and the driving end of the driving source (2) is connected to the discharge conveyor belt body (1), and is characterized in that the dump truck quick discharge device further comprises: a discharge auxiliary mechanism (3) for accelerating the discharge speed of the discharge conveyor belt body (1), and the discharge auxiliary mechanism (3) comprises a pushing component (31), a transmission component (32) and a lifting drive component (33); The pushing component (31) has a telescopic function in a direction perpendicular to the top surface of the discharge conveyor belt body (1), and is arranged above the discharge end of the discharge conveyor belt body (1) to centrally push the materials at the discharge end of the discharge conveyor belt body (1) outwards; The transmission component (32) is connected to the fixed end of the pushing component (31), and is used to drive the pushing component (31) as a whole to cyclically move up, down and horizontally in the dump truck cargo box (4), firstly moving the pushing component (31) as a whole up to a preset position, then moving the pushing component (31) as a whole down and inserting it into the material, and finally moving the pushing component (31) as a whole horizontally along the conveying direction of the unloading conveyor belt body (1), so as to push the material out of the unloading conveyor belt body (1); The lifting drive component (33) is respectively connected to the transmission component (32) and the telescopic end of the pushing component (31). When the pushing component (31) moves upward as a whole, the lifting drive component (33) is used to drive the telescopic end of the pushing component (31) to move upward and retract, so that the telescopic end of the pushing component (31) moves to a position above the material. When the pushing component (31) moves downward as a whole, the lifting component is used to drive the telescopic end of the pushing component (31) to move downward and reset.

2. A quick unloading device for a dump truck according to claim 1, It is characterized in that The pushing component (31) comprises a support plate (311) and a plurality of pushing plates (312); the support plate (311) is arranged parallel to the top surface of the discharge conveyor belt body (1); one end of the support plate (311) is connected to the transmission component (32); the plurality of pushing plates (312) are evenly slidably mounted on one side of the pushing plate (312) along the length direction of the support plate (311); the pushing plate (312) is perpendicular to the top surface of the discharge conveyor belt body (1); and the plurality of pushing plates (312) are commonly connected to the lifting drive component (33).

3. A quick unloading device for a dump truck according to claim 2, It is characterized in that The number of the transmission components (32) is two, and the two transmission components (32) are symmetrically distributed on both sides of the discharge conveyor belt body (1). The transmission components (32) include a connecting frame (321), a first transmission component, and a second transmission component. The connecting frame (321) is fixed to the top of the discharge conveyor belt body (1). One end of the first transmission component is connected to the driving end of the driving source (2), and the other end is connected to the second transmission component. The second transmission component is arranged on one side of the connecting frame (321) and is connected to the end of the support plate (311). The second transmission component is used to drive the support plate (311) to move up, down, and horizontally in sequence.

4. A quick unloading device for a dump truck according to claim 3, It is characterized in that The first transmission assembly comprises two first pulleys (322), one of the first pulleys (322) being rotatably mounted on one side of the connecting frame (321), and the other first pulley (322) being fixedly sleeved on the driving end of the driving source (2), and the two first pulleys (322) being transmission-connected via a first transmission belt (323); The second transmission assembly comprises three second pulleys (324), the three second pulleys (324) are distributed in an isosceles triangle and are rotatably mounted on one side of the connecting frame (321), and the three second pulleys (324) are transmission-connected via a second transmission belt (325), a rotating end of one of the second pulleys (324) is fixed to one of the first pulleys (322), and an end of the support plate (311) is rotationally connected to the outer side of the second transmission belt (325).

5. A quick unloading device for a dump truck according to claim 4, It is characterized in that The lifting drive component (33) comprises a connecting rod (331), two first gears (332), two toothed plate groups and a plurality of second gears (334). The connecting rod (331) is rotatably mounted inside the support plate (311), and its two ends respectively penetrate through the two ends of the support plate (311) and are fixed to the two first gears (332). The two toothed plate groups are respectively arranged on one side of the two support frames, and the toothed plate groups comprise two matching toothed plates (333) matched with the first gears (332). The matching tooth plates (333) are all fixed to one side of the connecting frame (321) and are respectively parallel to the two oblique sides of the second transmission belt (325); a plurality of the second gears (334) are correspondingly arranged on one side of a plurality of push plates (312), and a plurality of the second gears (334) are all fixed to the outer side of the connecting rotating rod (331); a matching tooth groove (335) adapted to the second gear (334) is provided on one side of the push plate (312), and the second gear (334) is meshed with the matching tooth groove (335).

6. A quick unloading device for a dump truck according to claim 5, It is characterized in that The pushing component (31) further comprises a plurality of rotating components (313), wherein the plurality of rotating components (313) are connected to the plurality of pushing plates (312) in a one-to-one correspondence, wherein the rotating components (313) comprise a rotating rod (3131), a contact shaft (3132) and a drill bit (3133), wherein the rotating rod (3131) is rotatably mounted inside the pushing plate (312), wherein the bottom end of the rotating rod (3131) passes through the bottom of the pushing plate (312) and is fixed to the top of the drill bit (3133), wherein the outer side of the rotating rod (3131) is provided with a spiral groove (3134) adapted to the contact shaft (3132), wherein one side of the pushing plate (312) is provided with a clearance groove (3135), wherein the contact shaft (3132) is fixed to one side of the supporting plate (311), wherein the end of the contact shaft (3132) passes through the clearance groove (3135) and is slidably connected to the inner side of the spiral groove (3134).

7. A quick unloading device for a dump truck according to claim 6, It is characterized in that The drill bit (3133) is conical, and the cross-sectional diameter of the drill bit (3133) is greater than the width of the push plate (312).

8. A quick unloading device for a dump truck according to claim 7, It is characterized in that The pushing component (31) also includes a plurality of closing components (314), and the plurality of closing components (314) are connected to the plurality of pushing plates (312) in a one-to-one correspondence. The closing components (314) include a movable plate (3141), an extrusion shaft (3142) and a connecting spring (3143). A contraction groove (3144) is provided on one side of the pushing plate (312), and a side of the movable plate (3141) is slidably connected to the contraction groove (3144). An extrusion slope is provided on the top of the movable plate (3141). The extrusion shaft (3142) slides on one side of the supporting plate (311), and an end portion thereof is slidably fitted with the extrusion slope. The connecting spring (3143) is fixed between the movable plate (3141) and the contraction groove (3144).

9. A quick unloading device for a dump truck according to claim 8, It is characterized in that The bottom of the movable plate (3141) is set to be conical, and the number of the connecting springs (3143) is set to two, and the two connecting springs (3143) are symmetrically distributed in the contraction groove (3144) up and down.

10. A quick unloading device for a dump truck according to claim 9, It is characterized in that The closing assembly (314) also includes a driving plate (3145) and two adjusting rotating rods (3146), both ends of the driving plate (3145) are slidably connected to one side of the support plate (311), the ends of a plurality of the extrusion shafts (3142) are fixed to one side of the driving plate (3145), the two adjusting rotating rods (3146) are respectively threadedly connected to the two ends of the driving plate (3145), and the bottom end of the adjusting rotating rod (3146) is rotatably connected to the support plate (311).

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