CN112810525A - Dump truck and auxiliary unloading device thereof - Google Patents
Dump truck and auxiliary unloading device thereof Download PDFInfo
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- CN112810525A CN112810525A CN202110251744.0A CN202110251744A CN112810525A CN 112810525 A CN112810525 A CN 112810525A CN 202110251744 A CN202110251744 A CN 202110251744A CN 112810525 A CN112810525 A CN 112810525A
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- 238000007599 discharging Methods 0.000 claims abstract description 54
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 230000007306 turnover Effects 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
- B60P1/04—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
- B60P1/04—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element
- B60P1/30—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element in combination with another movement of the element
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Abstract
The invention provides a dumper and an auxiliary unloading device thereof. The dump truck comprises a chassis, a dump body arranged on the chassis and a lifting mechanism arranged between the chassis and the dump body; the auxiliary discharge device comprises: an extension plate having a first end and a second end and disposed at a trailing end of the dump body; the connecting piece is used for connecting the first end of the extension plate and the tail end of the self-discharging carriage, so that the first end of the extension plate is hinged with the self-discharging carriage, and the second end of the extension plate can turn over relative to the first end; when the second end of the extension plate is erected at the tail end of the self-discharging carriage, the extension plate is in a retracted state, and when the second end of the extension plate is overturned to stretch out the tail end of the self-discharging carriage, the extension plate is in an extended state.
Description
Technical Field
The invention relates to the field of vehicles, in particular to a dumper and an auxiliary unloading device thereof.
Background
The dumper is a special transport vehicle widely applied to city construction, road construction, hydraulic engineering and energy industry, and particularly relates to a vehicle for automatically unloading cargoes through hydraulic or mechanical lifting. The container of the dumper is lifted and inclined to a certain angle, so that the dumper can unload materials by utilizing the gravity of the goods, and time cost and labor force are saved.
The dump truck cannot move in the unloading process, so that goods unloaded on the ground are easy to accumulate, and potential safety hazards exist, for example, the tires of the vehicle are buried due to silt-shaped goods accumulation, and the performance and the service life of the tires are influenced; stone-like goods are likely to collide and damage members such as a rear tail lamp, a turn signal lamp, and a rear bumper of a vehicle.
Disclosure of Invention
The invention aims to provide a dumper and an auxiliary unloading device thereof, and aims to solve the problem that the dumper in the prior art has potential safety hazards during unloading.
In order to solve the technical problems, the invention provides an auxiliary unloading device of a dumper, wherein the dumper comprises a chassis, a dumper carriage arranged on the chassis and a lifting mechanism arranged between the chassis and the dumper carriage; the auxiliary discharge device comprises:
an extension plate having a first end and a second end and disposed at a trailing end of the dump body;
the connecting piece is connected with the first end of the extension plate and the tail end of the self-discharging carriage, so that the first end of the extension plate is hinged with the self-discharging carriage, and the second end of the extension plate can turn over relative to the first end;
the second end of the extension plate is erected at the tail end of the self-discharging carriage, the extension plate is in a retracted state, and when the second end of the extension plate is overturned to protrude out of the tail end of the self-discharging carriage, the extension plate is in an extended state.
In one embodiment, the second end is located above the first end when the extension panel is in the stowed position.
In one embodiment, the turning of the extension plate is achieved by a driving member; the driving piece is arranged at the bottom of the self-discharging carriage and is hinged with the first end of the extension plate.
In one embodiment, the driving member has a fixed end and a telescopic end, the fixed end is fixedly connected with the bottom of the self-discharging carriage, the telescopic end is located along the length direction of the self-discharging carriage and is close to or far away from the fixed end, and the telescopic end is hinged to the first end of the extension plate.
In one embodiment, when the extension board is in the retracted state, the tail end face of the first end of the extension board has an inclined face, the inclined face is inclined outwards from the first end to the second end, and the driving member is connected with the extension board at the inclined face.
In one embodiment, the driving member is connected to the extending plate through a transmission member, and two ends of the transmission member are respectively hinged to the driving member and the first end of the extending plate.
In one embodiment, the auxiliary unloading device further comprises a limiting member;
the limiting piece is fixed at the tail end of the self-discharging carriage and used for being abutted against the extension plate to limit the extension plate to rotate continuously.
In one embodiment, the limiting member includes a supporting rod and a limiting rod that are connected to each other, the supporting rod is fixedly connected to the self-discharging carriage and extends out of the tail end of the self-discharging carriage, one end of the limiting rod is connected to the supporting rod, the other end of the limiting rod is connected to the self-discharging carriage, and the limiting rod is used for abutting against the extending plate.
In one embodiment, the connecting member includes a first connecting piece and a second connecting piece, which are hinged to each other, the first connecting piece is fixedly connected to the rear end surface of the dump body, and the second connecting piece is fixedly connected to the first end surface of the extending plate.
In one embodiment, the length from the first end to the second end of the extension plate is less than or equal to 300 mm.
In one embodiment, the second end is located below the first end when the extension panel is in the stowed position.
In one embodiment, the turning of the extension plate is achieved by a driving member; the driving piece is arranged at the bottom of the self-discharging carriage and is hinged with the front end face of the first end of the extension plate.
In one embodiment, when the second end of the extension plate is erected at the tail end of the dump body, the extension plate is clamped with the dump body to be in a retracted state; when the second end of the extension plate protrudes out of the tail end of the dump body, the extension plate is connected with the dump body through a support member to maintain the protruding state.
In one embodiment, the turning of the extension plate is achieved by a driving member; the driving piece is in a chain shape, and two ends of the driving piece are respectively connected with the tail end of the chassis and the middle area of the extension plate;
when the self-discharging carriage is horizontally arranged on the chassis, the driving piece is tightened, and the extension plate is abutted against the tail end of the self-discharging carriage and is in a retracted state; when the self-discharging carriage is inclined relative to the chassis, the driving piece is loosened, and the second end of the extension plate is overturned to extend out of the tail end of the self-discharging carriage to be in a stretching state.
The invention also provides a dump truck which comprises a chassis, a self-discharging carriage arranged on the chassis, a lifting mechanism arranged between the chassis and the self-discharging carriage, and the auxiliary unloading device arranged at the tail end of the self-discharging carriage.
According to the technical scheme, the invention has the advantages and positive effects that:
according to the dump truck, the auxiliary unloading device is arranged at the tail end, so that unloaded goods can be unloaded to the ground through the extension plate and are far away from the tail end of the dump truck when unloading, further, the damage of the goods to dump truck components such as tires, rear tail lamps and bumpers is avoided, the unloading safety is improved, and the service life of the dump truck components is prolonged. And due to the function of extending the auxiliary unloading device to extend the plate, the rear overhang size of the vehicle has more selectivity when the vehicle is designed.
Drawings
Fig. 1 is a schematic structural view of the auxiliary unloading device in the first embodiment of the dumper of the invention when being collected;
FIG. 2 is a schematic view of a portion of the rear end of FIG. 1 according to the present invention;
FIG. 3 is a schematic illustration of a portion of the FIG. 2 construction of the present invention;
FIG. 4 is a schematic view of the auxiliary unloading device of the dumper of the first embodiment of the invention in an extended state;
FIG. 5 is a schematic view of a portion of the rear end of FIG. 4 according to the present invention;
FIG. 6 is a schematic view of the auxiliary unloading device in the second embodiment of the dump truck according to the invention;
FIG. 7 is a schematic view of the auxiliary unloading device of the dumper of the second embodiment of the invention in partial structure when extended;
fig. 8 is a schematic structural view of the auxiliary unloading device in the third embodiment of the dump truck of the invention when being collected;
FIG. 9 is an enlarged partial view of the trailing end of FIG. 8 according to the present invention;
fig. 10 is a partial structural schematic view of the dumper truck with the auxiliary unloading device extended in the third embodiment of the invention.
The reference numerals are explained below: 1. a dump body; 2. a chassis; 3. a lifting mechanism; 4. a tire; 5. a rear bumper; 6. a rear tail lamp; 71. a drive member; 72. a connecting member; 73. an extension plate; 74. a limiting member; 8. an auxiliary discharge device; 81. a drive member; 82. a connecting member; 83. an extension plate; 84. a transmission member; 85. a limiting member; 851. a support bar; 852. a limiting rod;
9. an auxiliary discharge device; 91. a drive member; 92. a connecting member; 93. an extension plate.
Detailed Description
Exemplary embodiments that embody features and advantages of the invention are described in detail below in the specification. It is to be understood that the invention is capable of other embodiments and that various changes in form and details may be made therein without departing from the scope of the invention and the description and drawings are to be regarded as illustrative in nature and not as restrictive.
For further explanation of the principles and construction of the present invention, reference will now be made in detail to the preferred embodiments of the present invention, which are illustrated in the accompanying drawings.
The invention provides a dump truck, which can enable goods to be far away from the tail part of the dump truck during unloading, so that the safety is higher.
First embodiment of dump truck
Referring to fig. 1 and 4, the dump truck includes a chassis 2, tires 4 disposed below the chassis 2, a dump body 1 disposed on the chassis 2, a lifting mechanism 3 disposed between the chassis 2 and the dump body 1, an auxiliary unloading device 8, and accessories such as a tail light 6, a turn light, and a rear bumper 5 disposed at a tail end.
For convenience of description, the longitudinal direction of the chassis 2 is defined as a longitudinal direction, and the width direction of the chassis 2 is defined as a transverse direction. The front end is defined to face the head of the vehicle, and the tail end is defined to be far away from the head of the vehicle.
The lifting mechanism 3 is disposed at the front end of the chassis 2, or may be disposed in the middle of the chassis 2, and is capable of lifting the dump body 1 to incline the dump body 1, thereby achieving unloading. The present embodiment is mainly optimized for the auxiliary unloading device 8 and the connection manner related thereto, and the related structures of the chassis 2, the dump body 1, the lifting mechanism 3, the tires 4, the tail lamps 6, the turn lamps, the rear bumper, and the like can refer to the related art.
The auxiliary discharge means 8 will be described in detail below.
The auxiliary unloading device 8 is arranged at the tail end of the dump truck body 1, so that when the cargoes are unloaded, the cargoes are unloaded to the tail end far away from the dump truck body 1, the influence of the cargoes unloaded on the ground on the tires 4, the rear tail lamps 6, the steering lamps, the rear bumpers 5 and other accessories of the dump truck is avoided, and the unloading safety is improved.
Referring to fig. 2 and 3, the auxiliary unloading device 8 comprises a driving member 81, a transmission member 84, an extension plate 83, a connecting member 82 and a limiting member 85.
The driving member 81 is disposed at the tail end of the dump truck. Specifically, the driving member 81 has a telescopic rod. The telescopic rod extends in the longitudinal direction. The two ends of the telescopic rod are respectively a fixed end and a telescopic end. The fixed end is fixed at the bottom of the self-discharging carriage 1 and faces to the front end. The telescopic end is positioned at the tail end of the fixed end and can move back and forth relative to the fixed end. In this embodiment, the driving member 81 is a hydraulic cylinder.
In other embodiments, the driving element 81 can also be a cylinder, which not only has small pressure and high safety, but also is environment-friendly, energy-saving and convenient to control; dependence on the hydraulic oil tank and the battery box can be avoided, and the air cylinder does not need to be related to a wire harness, so that the requirement on space is reduced.
In yet another exemplary embodiment, the driving member 81 may also be a motor. The auxiliary unloading device 8 can normally work under severe environments such as low temperature, high temperature, rain and snow and the like, so that the environmental adaptability of the dumper is improved, and the requirement on space can be reduced. And the motor has the advantages of high positioning precision and high transmission speed.
The transmission member 84 is connected to the telescopic end of the telescopic rod, and is able to move with the telescopic rod, and transmits the movement to the extension plate 83.
Specifically, the transmission member 84 is hinged to the telescopic rod. In this embodiment, the telescopic end of the telescopic rod has a first hinge hole, the end of the transmission member 84 has a second hinge hole, and a rotating shaft is inserted into the first hinge hole and the second hinge hole simultaneously to realize the hinged connection between the transmission member 84 and the telescopic rod.
The extension plate 83 has a plate shape and covers the width of the dump body 1. A direction parallel to the lateral direction of the chassis 2 is defined as the lateral direction of the extension plate 83, and the other direction perpendicular to the lateral direction is defined as the longitudinal direction of the extension plate 83. The extension plate 83 has a first end and a second end along its longitudinal direction, and the second end can be turned around the first end to be erected on the tail end of the self-discharging body 1 to be in a retracted state, or turned to be protruded out of the tail end of the self-discharging body 1 to be in a protruded state.
Specifically, in the present embodiment, when the extension plate 83 is in the retracted state, the second end of the extension plate 83 is located above the first end. The second end of the extension plate 83 is turned upside down when changing from the retracted state to the extended state.
In particular, a first end of the extension plate 83 is hingedly connected to the other end of the transmission member 84 opposite the telescopic rod.
Referring to fig. 2, when the extension plate 83 is in the retracted state, a surface of the first end of the extension plate 83 is in a horizontal state, and a tail portion of the first end of the extension plate 83 has an inclined surface. The inclined surface is inclined from the first end to the second end toward the tail end.
Specifically, two lugs are protruded from the inclined surface of the extension plate 83. The two lugs are connected perpendicularly to the extension plate 83. The two lugs are hinged to the other end of the transmission element 84 opposite to the telescopic rod.
I.e. the telescopic movement of the telescopic rod is transmitted to the extension plate 83 by the action of the transmission member 84, while the second end of the extension plate 83 is able to move relative to the first end.
Continuing with the direction of view of fig. 2, the trailing end of the second end of the extension plate 83 also has an inclined surface, which reduces the weight of the extension plate 83 and thus the weight of the entire dump truck.
The second end of the extension plate 83 is below or flush with the top of the dump body 1 in the stowed state. The length of the extension plate 83, i.e. the distance between the first end and the second end, can be specifically set according to actual needs.
The connector 82 connects the first end of the extension plate 83 and the trailing end of the dump body 1. Specifically, the connector 82 includes a first connecting tab and a second connecting tab that are hingedly connected. The first connecting piece is fixedly connected with the tail end face of the dump body 1, and the second connecting piece is fixedly connected with the first end face of the extending plate 83.
In this embodiment, the second connecting piece is rotatable with respect to the first connecting piece, so that the extension plate 83 is rotatable with respect to the dump body 1.
The stopper 85 is provided at the rear end of the dump body 1 below the link 82, and is configured to restrict the extension plate 83 from continuing to rotate in the extended state. Specifically, the stopper 85 includes a support rod 851 and a stopper rod 852. The support rod 851 extends longitudinally, one end of the support rod is fixedly connected with the tail end of the bottom of the self-discharging carriage 1, and the other end of the support rod protrudes out of the tail end. One end of the limiting rod 852 is connected with the end of the supporting rod 851, which protrudes out, and the other end is fixedly connected with the self-discharging carriage 1. I.e., the gag lever post 852 is in an inclined state.
Specifically, in the present embodiment, when the stopper 85 abuts against the extension plate 83, the extension plate 83 and the dump body 1 are inclined at the same angle, that is, the top of the floor of the dump body 1 is flush with the top of the extension plate 83, so that the cargo can be inclined downward along the floor of the dump body 1 and the extension plate 83, and unloading is completed.
In other words, the stopper 85 restricts the maximum angle between the extension plate 83 and the dump body 1 to 180 degrees.
When the extension plate 83 extends, the limiting member 85 abuts against the extension plate 83 to limit the extension plate 83 from rotating downward. Specifically, the stopper rod 852 of the stopper 85 abuts against the inclined surface of the extension plate 83, and at this time, the inclination of the stopper rod 852 is the same as the inclination of the inclined surface.
When the dump truck is in a transportation process, the telescopic rod of the driving part 81 is in an extending state, and the telescopic rod gives an upward oblique thrust to the extension plate 83 through the driving part 84, so that the extension plate 83 is attached to the rear door of the dump truck carriage 1. Namely, the auxiliary unloading device can lock the rear door when the dump truck is in running, so that the running safety of the dump truck is ensured.
When the dump truck reaches the destination and needs to unload the goods, the driving member 81 is started to retract the telescopic rod, that is, the telescopic rod moves towards the front end, the telescopic rod gives an inclined downward pulling force to the extension plate 83 through the transmission member 84, and the second end of the extension plate 83 rotates downward around the first end until the extension plate 83 abuts against the limiting member 85. The lifting mechanism 3 is then activated to tilt the dump body 1 downward from front to rear.
As shown in fig. 4 and 5, the extension plate 83 is flush with the floor of the dump body 1, and the cargo slides along the floor of the dump body 1 by gravity onto the extension plate 83 and then onto the ground.
Due to the effect of the extension plate 83, the goods unloaded to the ground are far away from the tail end of the chassis 2, so that the damage of the goods to the dump truck components such as the tires 4, the tail lamps 6 and the bumper is avoided, the unloading safety is improved, and the service life of the dump truck components is prolonged. And due to the extension plate 83, there is more choice in the rear overhang size of the vehicle when the vehicle is designed.
Due to the extension of the extension plate 83, the dump truck can be used for unloading special equipment, containers or occasions such as a paver, a ship, a cliff and the like, can be unloaded to a desired position, does not need manual transfer, and improves the working efficiency.
After the dump truck unloads the goods, the retractable rod of the driving member 81 is extended to the rear end, and an oblique upward thrust is given to the extension plate 83 by the transmission member 84, so that the extension plate 83 approaches to the rear door of the dump truck body 1 along with the thrust and rotates around the connecting member 82 until the extension plate 83 is attached to the rear door of the dump truck body 1. At this time, the extension plate 83 is in the stowed state.
Second embodiment of dump truck
Referring to fig. 6 and 7, the difference between the present embodiment and the first embodiment of the dump truck is that: in this embodiment, a height difference is provided between the bottom of the back door of the dump body and the floor of the dump body.
The auxiliary discharge device in this embodiment comprises a driving member 71, a connecting member 72, an extension plate 73 and a limiting member 74. When the extension plate 73 is in the retracted state, the extension plate 73 and the back door are located on the same straight line, and the extension plate 73 and the back door jointly enclose the dump body.
Specifically, in the present embodiment, the bottom end surface of the rear door is an inclined surface, which is inclined upward from front to rear. The second end of the extension plate 73 has an inclined surface, which is matched with the bottom end surface of the rear door, and the thickness of the extension plate 73 is the same as that of the rear door, so that when the extension plate 73 is in a retracted state, the second end of the extension plate 73 is attached to the bottom end surface of the rear door.
The telescopic rod of the driving member 71 is disposed obliquely. Specifically, the telescopic link is from the front to the back downward slope, and the flexible end of telescopic link is located the below to one side of stiff end promptly.
The fixed end of the telescopic rod protrudes out of the bottom plate and is hinged with the bottom plate.
The flexible end of telescopic link and the first end of extending the board realize articulated connection through the pivot. Specifically, the first hole that changes has been seted up to the flexible end of telescopic link, and the second hole that changes has been seted up to the first end of extension plate 73, and the first hole that changes and the second hole that changes are inserted simultaneously in the pivot, and realize the rotatable coupling of telescopic link and extension plate.
In this embodiment, the connecting member 72 includes a rotating shaft base, a sleeve, and a flip shaft. The rotating shaft seat is fixed at the tail end of the bottom plate, the shaft sleeve is fixed with the rotating shaft seat, and the turnover shaft is rotatably connected with the shaft sleeve.
The connecting member 72 is fixedly connected to the middle region of the extension plate 73, thereby realizing the hinged connection of the middle region of the extension plate 73 to the dump body.
The position limiting member 74 is in a block shape, and is disposed at the rear end of the bottom plate and at the front end of the connecting member 72. That is, the stopper 74 is disposed between the base plate and the connecting member 72.
The stopper 74 has a horizontal bottom for abutting against the extension plate 73, thereby restricting the extension plate 73 from further rotating.
In the transportation process of the dump truck in this embodiment, the telescopic rod of the driving member 71 is in an extended state, and the extension plate 73 is erected and located on the same straight line with the back door to close the dump truck compartment. Therefore, the auxiliary unloading device does not additionally increase the length of the whole dumper while providing a locking back door and ensuring the length in the dumper box.
When the dump truck reaches the destination and the cargo needs to be unloaded, the driving member 71 is started to retract the telescopic rod, that is, the telescopic rod moves towards the front end, the telescopic rod gives an inclined downward pulling force to the extension plate 73, and the second end of the extension plate 73 rotates downwards around the first end until the extension plate 73 abuts against the limiting member 74.
Other features of the dump truck in this embodiment can refer to the first embodiment and will not be described in detail.
Third embodiment of dump truck
Referring to fig. 8 to 10, the difference between the present embodiment and the first embodiment of the dump truck is that: in the auxiliary unloading device 9 of this embodiment, when the extension plate 93 is in the retracted state, the second end thereof is located below the first end, and when the extension plate 93 is excessively retracted to the extended state, the second end of the extension plate 93 is turned from bottom to top.
With continued reference to fig. 9 and 10, the auxiliary discharge device 9 of the dump truck includes a drive member 91, a connector 92, and an extension plate 93.
The extension plate 93 is directly hinged to the driving member 91 to receive the driving of the driving member 91.
The driving member 91 is hingedly connected to a front end surface of the first end of the extension plate 93 when the extension plate 93 is in the retracted state. And the extension plate 93 extends vertically at the front end surface of the first end.
The front end surface of the second end of the extension plate 93 is provided with an inclined surface, and the inclined surface is inclined from the front end to the tail end from top to bottom when the extension plate 93 is in a retracted state, so as to reduce the weight of the extension plate 93.
The connector 92 is connected to an end surface of a first end of the extension plate 93.
When the dump truck 1 is in a transportation process, the telescopic rod of the driving member 91 is in a retraction state, and the extension plate 93 is erected at the tail end of the ground. And the extension plate 93 is maintained in an upright state by the action of the driving member 91. At this time, the telescopic rod of the driving member 91 extends in the longitudinal direction of the dump truck bed.
When the dump truck arrives at a destination and needs to unload goods, the driving piece 91 is started to extend the telescopic rod, namely, the telescopic rod moves towards the tail end, the telescopic rod provides an upward inclined thrust to the extension plate 93, and the second end of the extension plate 93 rotates upwards around the first end until the extension plate 93 abuts against the tail end of the dump truck carriage 1. At this time, the telescopic rod of the driving member 91 forms an angle with the longitudinal direction of the dump body 1.
The lifting mechanism 3 is then activated to tilt the dump body 1 downward from front to rear.
At this time, the extension plate 93 is flush with the floor of the dump body 1, and the cargo slides along the floor of the dump body 1 to the extension plate 93 and then to the ground due to gravity.
After the dump truck unloads the goods, the telescopic rod of the driving piece 91 is retracted to the front end, and a downward oblique pulling force is given to the extension plate 93, so that the extension plate 93 rotates downward along with the pulling force and rotates around the connecting piece 92 until the extension plate 93 rotates to be in an upright state. At this time, the extension plate 93 is in the stowed state.
In the retracted state, the extension plate 93 in this embodiment extends downward from the bottom of the dump body 1, so that the reflective mark at the tail end of the dump body 1 is exposed, and the transportation safety is ensured.
Other features of the dump truck in this embodiment can refer to the first embodiment and will not be described in detail.
Fourth embodiment of dump truck
The present embodiment is different from the first embodiment of the dump truck in that: the auxiliary discharge device in this embodiment comprises a drive member, a connecting member and an extension plate.
The driving piece is in a chain shape, one end of the driving piece is connected with the tail part of the chassis, and the other end of the driving piece is connected with the extension plate. In particular, in this embodiment, the driving member is detachably connected to both the chassis and the extension plate.
The connecting piece is arranged at the bottom of the tail end of the self-discharging carriage and extends towards the rear end in an inclined mode, and the inclined direction is inclined from top to bottom. That is, the link has a fixed end fixed to the bottom of the dump body and a link end located obliquely below the fixed end.
When the extension board is in a retracted state, the second end of the extension board is positioned above the first end. When the extension plate is converted from the retracted state to the extended state, the second end of the extension plate is turned from top to bottom.
The first end of the extension board is hinged with the connecting end of the connecting piece, so that the second end of the extension board can be turned over to be positioned above the first end. Specifically, the inner side surface of the extension plate is hinged with the connecting piece. The inner side is a direction toward the inside of the dump body, and the opposite direction is the outer side.
The middle area of the extension plate is hinged with the driving piece. The middle region of the extension plate does not refer to the exact center of the extension plate in the length direction, but refers to a region of a certain length range including the exact center of the extension plate in the length direction, and does not include the end portions at both ends of the extension plate in the length direction.
Specifically, in the present embodiment, the middle region of the extension plate has a protrusion protruding toward the inner side of the extension plate. The bulge is provided with an opening for connecting with the connecting piece.
When the dump truck is in a transportation process, the self-discharging carriage and the chassis are horizontally arranged, at the moment, the driving piece is in a tightening state, and a pulling force is provided to enable the extension plate to be abutted against the tail end of the self-discharging carriage, namely, the extension plate is in a retracting state.
When the dump truck arrives at a destination and needs to unload goods, the lifting mechanism is started to enable the self-unloading carriage to incline downwards from front to back, and the self-unloading carriage and the extension plate approach to the ground, so that the driving piece is loosened, the extension plate rotates relative to the connecting piece, and the second end of the extension plate extends out of the tail end of the self-unloading carriage.
After unloading, the lifting mechanism descends, the front end of the self-discharging carriage descends to drive the extension plate to move towards the principle ground direction, the driving piece is tightened, and the extension plate is folded and tightly attached to the back door of the self-discharging carriage.
Fifth embodiment of dump truck
The present embodiment is different from the first embodiment of the dump truck in that: the dump truck in this embodiment includes a connecting member, an extension plate, and a support member.
When the extension plate is in a retracted state, the second end of the extension plate is positioned below the first end, and when the extension plate is retracted to an extended state, the second end of the extension plate is turned from bottom to top.
When the extension plate is in a folding state, the tail end of the self-discharging carriage is provided with a clamping groove, and the extension plate is correspondingly provided with a lug so that the extension plate is clamped with the self-discharging carriage, and then the folding state is kept.
The extension plate is flipped over from the second end down to the first end by an external power, such as a manual force.
When the extension plate is turned to be flush with the bottom plate of the self-discharging carriage, the extension plate and the self-discharging carriage are respectively connected through the supporting piece, and then the extension plate is kept in a stretching state. Specifically, the extension plate is provided with a support lug, the support lug is provided with a connecting hole, the tail end of the self-discharging carriage is also provided with a matching hole, and two ends of the support piece are respectively connected with the connecting hole and the matching hole, so that the extension plate is connected with the self-discharging carriage.
The mechanical mode is adopted to replace the transmission of the driving piece, so that the installation cost and the maintenance cost of the auxiliary unloading device can be reduced, and the dependence of the auxiliary unloading device on the driving piece such as a hydraulic oil tank and a storage battery box and the limitation of the chassis space on the arrangement of oil pipes and wiring harnesses can be solved.
Other features of the dump truck in this embodiment, such as the connecting member and the extension plate, can be referred to the first embodiment and will not be described in detail.
According to the technical scheme, the invention has the advantages and positive effects that:
according to the dump truck, the auxiliary unloading device is arranged at the tail end, so that unloaded goods can be unloaded through the extension plate and are far away from the tail end of the dump truck when unloading, further, the damage of the goods to dump truck components such as tires, rear tail lamps and bumpers is avoided, the unloading safety is improved, and the service life of the dump truck components is prolonged. And due to the function of extending the auxiliary unloading device to extend the plate, the rear overhang size of the vehicle has more selectivity when the vehicle is designed.
While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims (15)
1. An auxiliary unloading device of a dumper comprises a chassis, a dumper carriage arranged on the chassis and a lifting mechanism arranged between the chassis and the dumper carriage; characterized in that the auxiliary discharge device comprises:
an extension plate having a first end and a second end and disposed at a trailing end of the dump body;
the connecting piece is connected with the first end of the extension plate and the tail end of the self-discharging carriage, so that the first end of the extension plate is hinged with the self-discharging carriage, and the second end of the extension plate can turn over relative to the first end;
the second end of the extension plate is erected at the tail end of the self-discharging carriage, the extension plate is in a retracted state, and when the second end of the extension plate is overturned to protrude out of the tail end of the self-discharging carriage, the extension plate is in an extended state.
2. An auxiliary discharge device as defined in claim 1 wherein the second end is located above the first end when the extension panel is in the stowed position.
3. An auxiliary discharge device as defined in claim 2 wherein tipping of the extension panel is effected by a drive; the driving piece is arranged at the bottom of the self-discharging carriage and is hinged with the first end of the extension plate.
4. An auxiliary discharge device as defined in claim 3 wherein the drive member has a fixed end fixedly attached to the bottom of the self-discharging body and a telescopic end movable along the length of the self-discharging body toward and away from the fixed end, the telescopic end being hingedly attached to the first end of the extension plate.
5. An auxiliary discharge device as defined in claim 3 wherein the end face of the first end of the extension panel has a sloped surface which slopes outwardly from the first end to the second end when the extension panel is in the stowed position, the drive member being connected to the extension panel at the sloped surface.
6. An auxiliary discharge device as claimed in claim 3 wherein the drive member is connected to the extension plate by a drive member, the drive member being hingedly connected at each end to the drive member and the first end of the extension plate respectively.
7. A secondary unloading device according to claim 3, wherein the secondary unloading device further comprises a stopper;
the limiting piece is fixed at the tail end of the self-discharging carriage and used for being abutted against the extension plate to limit the extension plate to rotate continuously.
8. An auxiliary unloading device according to claim 7, wherein the limiting member comprises a support rod and a limiting rod which are connected with each other, the support rod is fixedly connected with the self-unloading carriage and extends towards the tail end, one end of the limiting rod is connected with the support rod, the other end of the limiting rod is connected with the self-unloading carriage, and the limiting rod is used for abutting against the extension plate.
9. The auxiliary discharge device of claim 2 wherein the connector comprises a first connector tab and a second connector tab hingedly connected, the first connector tab fixedly connected to the trailing end surface of the dump body and the second connector tab fixedly connected to the first end surface of the extension panel.
10. An auxiliary discharge device as claimed in claim 2 wherein the length of the extension plate from the first end to the second end is less than or equal to 300 mm.
11. An auxiliary discharge device as defined in claim 1 wherein the second end is located below the first end when the extension panel is in the stowed position.
12. An auxiliary discharge device as defined in claim 11 wherein tipping of the extension panel is effected by a drive; the driving piece is arranged at the bottom of the self-discharging carriage and is hinged with the front end face of the first end of the extension plate.
13. An auxiliary discharge device as defined in claim 1,
when the second end of the extension plate is erected at the tail end of the self-discharging carriage, the extension plate is clamped with the self-discharging carriage to be in a retracted state; when the second end of the extension plate protrudes out of the tail end of the dump body, the extension plate is connected with the dump body through a support member to maintain the protruding state.
14. An auxiliary discharge device as defined in claim 1 wherein tipping of the extension panel is effected by a drive; the driving piece is in a chain shape, and two ends of the driving piece are respectively connected with the tail end of the chassis and the middle area of the extension plate;
when the self-discharging carriage is horizontally arranged on the chassis, the driving piece is tightened, and the extension plate is abutted against the tail end of the self-discharging carriage and is in a retracted state; when the self-discharging carriage is inclined relative to the chassis, the driving piece is loosened, and the second end of the extension plate is overturned to extend out of the tail end of the self-discharging carriage to be in a stretching state.
15. A dump truck characterized by comprising a chassis, a dump body arranged on the chassis, a lifting mechanism arranged between the chassis and the dump body, and the auxiliary unloading device as claimed in any one of claims 1 to 14 arranged at the tail end of the dump body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110251744.0A CN112810525A (en) | 2021-03-08 | 2021-03-08 | Dump truck and auxiliary unloading device thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110251744.0A CN112810525A (en) | 2021-03-08 | 2021-03-08 | Dump truck and auxiliary unloading device thereof |
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| CN112810525A true CN112810525A (en) | 2021-05-18 |
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| CN202110251744.0A Pending CN112810525A (en) | 2021-03-08 | 2021-03-08 | Dump truck and auxiliary unloading device thereof |
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