CN116533852B - Self-discharging semitrailer back door elevating gear - Google Patents
Self-discharging semitrailer back door elevating gear Download PDFInfo
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- CN116533852B CN116533852B CN202310597193.2A CN202310597193A CN116533852B CN 116533852 B CN116533852 B CN 116533852B CN 202310597193 A CN202310597193 A CN 202310597193A CN 116533852 B CN116533852 B CN 116533852B
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- rear door
- fixedly connected
- frame
- main body
- door main
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- 238000007599 discharging Methods 0.000 title claims abstract description 7
- 230000003028 elevating effect Effects 0.000 title claims description 6
- 230000007246 mechanism Effects 0.000 claims abstract description 52
- 238000004140 cleaning Methods 0.000 claims abstract description 20
- 239000003638 chemical reducing agent Substances 0.000 claims description 21
- 238000005096 rolling process Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 4
- 230000000630 rising effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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
- B60P1/26—Means for controlling movement of tailboards or sideboards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/20—Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J5/00—Doors
- B60J5/10—Doors arranged at the vehicle rear
- B60J5/108—Doors arranged at the vehicle rear for load transporting vehicles or public transport, e.g. lorries, trucks, buses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J5/00—Doors
- B60J5/10—Doors arranged at the vehicle rear
- B60J5/12—Doors arranged at the vehicle rear slidable; foldable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/62—Other vehicle fittings for cleaning
- B60S1/66—Other vehicle fittings for cleaning for cleaning vehicle exterior
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Handcart (AREA)
Abstract
The invention discloses a rear door lifting device of a self-discharging semitrailer, which relates to the field of semitrailer unloading and comprises a rear door main body and a side frame, wherein one side of the rear door main body is fixedly connected with two groups of movable supporting mechanisms, two ends of the two groups of movable supporting mechanisms are fixedly connected with lifting mechanisms, the lifting mechanisms are positioned in the side frame, and one side of the side frame is fixedly connected with a cleaning mechanism. According to the invention, the driving gear is driven to rotate by the second servo motor, the brush sheet roller is driven to rotate after the central shaft is stressed, the rear door main body is lifted upwards, the brush sheet roller rotates and cleans the side face of the rear door main body, in the process that the rear door main body is lifted upwards, the first side wheel and the second side wheel roll on the outer side of the rear door main body, the dislocation movement of the rear door main body is limited, the brush sheet roller is always parallel to the rear door main body, the cleaning effect in the process that the rear door main body is lifted is improved, and the arc-shaped cover covers the outer side of the brush sheet roller, so that broken particles cleaned and scattered are prevented.
Description
Technical Field
The invention relates to the technical field of semitrailer unloading, in particular to a rear door lifting device of a self-discharging semitrailer.
Background
The self-unloading semitrailer is suitable for transporting bulk scattered cargos such as coal, ore, earthwork, building materials and the like, the frame and the wagon box longitudinal beams are formed by welding high-quality manganese plates, and the wagon box is provided with a dustpan and a rectangle, has the advantages of high strength, strong lifting force, high rigidity, good toughness and strong bearing capacity, does not generate permanent deformation, and the wagon box adopts a side turning and backward turning self-unloading mode, so that the bulk scattered cargos can be transported by an effective loader.
As chinese patent CN216508070U discloses a self-unloading semitrailer back door lifting device, including the bottom plate, the up end fixedly connected with railway carriage of bottom plate, the opening has been seted up to the rear end face of railway carriage, is equipped with the door body in the opening, has all seted up logical groove on the both sides lateral wall of opening, all is equipped with the elevating system who is used for going on going up and down to the door body in two logical grooves, is equipped with on the logical groove and is used for carrying out clear clean mechanism to it, is equipped with the link gear that is used for carrying out the linkage to two elevating systems in the bottom plate, is equipped with on the right side lateral wall of bottom plate and is used for carrying out driven actuating mechanism to the link gear.
However, in the prior art, most of self-unloading semitrailers are rear-tipping and self-unloading, the rear door is generally in a double-door mode, before unloading, an operator is required to rotate the clamping handle to enable the double-door rear door to release a self-locking state, so that the rear-tipping and unloading of the semitrailer can be performed, when the double-door semitrailer is used for unloading, the two side doors swing at will, potential safety hazards exist, when the two side doors swing, the two side doors strike the bulk cargo stack, the deformation of the double-door is damaged, the powder of the bulk cargo is attached to the double-door, and when the semitrailer moves, the bulk cargo is scattered along the way, so that the waste of resources is caused.
Disclosure of Invention
The invention aims to provide a rear door lifting device of a self-unloading semitrailer, which solves the problems that most of the self-unloading semitrailer provided by the background technology is in a rear-tipping self-unloading mode, a rear door is generally in a double-door mode, before unloading, an operator is required to rotate a clamping handle to enable the double-door rear door to release a self-locking state, the rear-tipping unloading of the semitrailer can be carried out, two side doors swing randomly during unloading of the double-door semitrailer, potential safety hazards exist, when the two side doors swing, the two side doors strike a bulk cargo pile, deformation damage of the double-door is caused, powder of bulk cargoes can be attached to the double-door, and the bulk cargoes scatter along the way and waste of resources are caused when the semitrailer moves.
In order to achieve the above purpose, the present invention provides the following technical solutions: the rear door lifting device of the self-unloading semitrailer comprises a rear door main body and a side frame, wherein one side of the rear door main body is fixedly connected with two groups of movable supporting mechanisms, two ends of the two groups of movable supporting mechanisms are fixedly connected with lifting mechanisms, the lifting mechanisms are positioned in the side frame, and one side of the side frame is fixedly connected with a cleaning mechanism;
two groups of mounting plates are fixedly connected to one side of the rear door main body, a plurality of corner plates are fixedly connected to two sides of the rear door main body and the mounting plates, side frames are fixedly connected to two sides of the two groups of mounting plates, first side wheel pieces are fixedly arranged at four corners of the other side of each side frame, and two groups of second side wheel pieces are fixedly arranged in the middle of the other side of each side frame;
the cleaning mechanism comprises a driving gear, a driven gear is connected to the outer side of the driving gear in a meshed mode, a central shaft is fixedly arranged in the middle of the driven gear, a brush roll is fixedly arranged on the outer surface of the central shaft, a tripod is rotationally connected to the two ends of the central shaft, a straight rod is fixedly clamped to one end of the tripod, an arc-shaped cover is fixedly connected to the outer side of the straight rod, the arc-shaped cover is located on the outer side of the brush roll, first side wheels are fixedly arranged at the other two ends of the tripod, a second side wheel is fixedly arranged on one side of the tripod, and the second side wheels are located between the two first side wheels.
Preferably, the middle part of the driving gear is fixedly provided with a second servo motor, the lower side of the second servo motor is fixedly connected with a half-frame, and one side of the half-frame is fixedly connected with the outer side of the side frame.
Preferably, the outer sides of the first side wheel piece and the second side wheel piece are in rolling clamping connection with the inner wall of the side frame, and a trapezoid frame is fixedly connected with the middle part of one side of the side frame.
Preferably, one side of one side frame is fixedly connected with a first connecting piece, the other side of the first connecting piece is fixedly connected with a chain belt, and the inner side of the chain belt is movably clamped with an inner gear.
Preferably, a speed reducer is fixedly arranged in the middle of the inner gear, and two ends of an output shaft of the speed reducer are both rotationally connected with the inside of the side frame.
Preferably, a first servo motor is fixedly arranged on the lower side of the speed reducer, and a connecting plate is fixedly connected on the upper side of the speed reducer.
Preferably, the upper end of the connecting plate is fixedly connected with the inside of the side frame, and the other end of the chain belt is fixedly connected with a second connecting piece.
Preferably, the other side of the second connecting piece is fixedly connected with a square frame, and the two sides of the square frame are fixedly provided with third side wheel pieces.
Preferably, the outside of third side wheel spare with the inner wall roll joint of side frame, square frame's inner wall fixed mounting has the balancing weight, the inside fixed mounting of side frame has the speed reduction subassembly.
Preferably, the speed reducing assembly comprises a connecting short plate, one end of the connecting short plate is fixedly connected with the inside of the side frame, an electric push rod is fixedly arranged at the other end of the connecting short plate, a folded plate is rotatably connected with a movable rod of the electric push rod, two ends of the folded plate are rotatably connected with rollers, and the outer sides of the rollers are in rolling clamping connection with the outer sides of the trapezoid frames.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the cleaning mechanism is arranged on the side surface of the side frame through the two groups of square frames and the two groups of triangular frames, the second servo motor is started while the first servo motor is started, the second servo motor drives the driving gear to rotate, the driving gear is meshed with the driven gear to rotate, the driven gear drives the central shaft to rotate in the middle of the two triangular frames, the central shaft drives the brush sheet roller to rotate, the rear door main body is lifted upwards, the brush sheet roller rotates and cleans the side surface of the rear door main body, the first side wheel and the second side wheel roll outside the rear door main body in the process of lifting the rear door main body upwards, dislocation movement of the rear door main body is limited, the brush sheet roller is guaranteed to be always parallel to the rear door main body, the cleaning effect in the process of lifting the rear door main body is improved, and the arc-shaped cover covers the outer side of the brush sheet roller to avoid scattered particles in cleaning.
2. In the invention, by arranging the lifting mechanism, as the weight of the two balancing weights is equal to that of the main body of the rear door, in the initial state, the end of the chain belt connected with the second connecting piece is at a high point, the other end of the chain belt connected with the first connecting piece is at a low point, the internal gear is not forced to rotate, the side frame is forced to balance and block the carriage, after the carriage is transported to a designated position, the first servo motor is started, the first servo motor injects power into the speed reducer, the two ends of the output shaft of the speed reducer simultaneously drive the two groups of internal gears to rotate clockwise, the internal gear drives the chain belt to rotate, the positions of the speed reducer and the internal gear are limited by the connecting plate, the heights of the two ends of the chain belt change after the rotation of the chain belt, the gravity of balancing weight is applyed on square frame, square frame atress drives both sides third side wheel spare and rolls downwards in the side frame, third side wheel spare downward pulling second connecting piece, second connecting piece downward pulling chain belt one end, the length of chain belt is fixed, its other end then atress upwards moves, drive two sets of first connecting pieces upwards, first connecting piece upwards pulls whole removal supporting mechanism and upwards moves perpendicularly, and then drive back door main part upwards rises, separate with the railway carriage end, swing striking bulk cargo heap when avoiding traditional double door unloading, realize back door and railway carriage lift and open, more make things convenient for the back to turn over the self-discharging.
3. According to the invention, by arranging the speed reducing assembly, when the side frame moves upwards to approach the highest point, the outermost side of the trapezoid frame starts to contact with the roller, the movable rod of the electric push rod is always in an elongated state, the folded plate is pushed, the corresponding roller is pushed by the folded plate, the roller is pushed by the trapezoid frame outwards, so that the friction force between the two is increased, the trapezoid frame has an upward movement trend relative to the roller because the direction of the friction force is always opposite to the direction of the relative movement trend of an object, the trapezoid frame is subjected to downward rolling friction force, and then both sides of the whole movable supporting mechanism start to be subjected to downward rolling friction force, so that the movable supporting mechanism drives the upward movement speed of the rear door main body to be slow, the first servo motor is closed at the moment, the rear door main body is at the highest point and is completely separated from the carriage, and then the bulk goods are dumped out from the carriage after half of the dumper.
4. According to the invention, by arranging the movable supporting mechanism, two groups of mounting plates are arranged on the back surface of the rear door main body, a plurality of corner plates are added on two sides of each group of mounting plates, so that the structural strength of the rear door main body is enhanced, the rear door main body is prevented from being deformed due to side compression of bulk goods, the corresponding side frames are pulled upwards by the first connecting piece, the first side wheel piece and the second side wheel piece are driven to move upwards in the side frames after the side frames are stressed, the two groups of lifting mechanisms are synchronously started, two ends of each mounting plate are subjected to the same force, and the plurality of first side wheel pieces and the plurality of second side wheel pieces are respectively clamped in the side frames to roll, so that the whole movable supporting mechanism is ensured to vertically move upwards, and the rear door main body is driven to be lifted upwards and separated from the tail end of a carriage.
Drawings
FIG. 1 is a schematic perspective view of a rear door lifting device of a dump semitrailer according to the present invention;
FIG. 2 is a schematic perspective view of a second view angle of a rear door lifting device of a dump semitrailer according to the present invention;
FIG. 3 is a schematic perspective view of a movable support mechanism in a rear door lifting device of a dump semitrailer according to the present invention;
fig. 4 is a schematic perspective view of a second view angle of a movable supporting mechanism in a rear door lifting device of a dump semitrailer according to the present invention;
FIG. 5 is a schematic perspective view of a lifting mechanism in a rear door lifting device of a dump semitrailer according to the present invention;
FIG. 6 is a schematic perspective view of a deceleration assembly in a rear door lifting device of a dump semitrailer according to the present invention;
FIG. 7 is a schematic perspective view of a cleaning mechanism in a rear door lifting device of a dump semitrailer;
fig. 8 is a schematic perspective view of a part of a cleaning mechanism in a rear door lifting device of a self-unloading semitrailer.
In the figure: 1. a rear door main body; 2. a movable support mechanism; 21. a mounting plate; 22. a corner plate; 23. a side frame; 24. a first side wheel member; 25. a second side wheel member; 26. a ladder-shaped frame; 3. a side frame; 4. a cleaning mechanism; 41. an arc-shaped cover; 42. a tripod; 43. a second servo motor; 44. a straight rod; 45. a shaped frame; 46. a first side wheel; 47. a second side wheel; 48. a drive gear; 49. a brushing roller; 410. a driven gear; 411. a central shaft; 5. a lifting mechanism; 51. a connecting plate; 52. an internal gear; 53. a speed reducer; 54. a chain belt; 55. a first servo motor; 56. a deceleration assembly; 561. connecting short plates; 562. an electric push rod; 563. a folded plate; 564. a roller; 57. a first connector; 58. a second connector; 59. a square frame; 510. a third side wheel member; 511. and (5) balancing weights.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-8: a self-unloading semitrailer rear door lifting device comprises a rear door main body 1 and a side frame 3, wherein one side of the rear door main body 1 is fixedly connected with two groups of movable supporting mechanisms 2, two ends of each group of movable supporting mechanisms 2 are fixedly connected with lifting mechanisms 5, the lifting mechanisms 5 are positioned in the side frame 3, one side of the side frame 3 is fixedly connected with a cleaning mechanism 4, one side of the rear door main body 1 is fixedly connected with two groups of mounting plates 21, two sides of the rear door main body 1 and the mounting plates 21 are fixedly connected with a plurality of corner plates 22, two sides of the two groups of mounting plates 21 are fixedly connected with side frames 23, four corners of the other side of each side frame 23 are fixedly provided with first side wheel pieces 24, the middle of the other side of each side frame 23 is fixedly provided with two groups of second side wheel pieces 25, the cleaning mechanism 4 comprises a driving gear 48, the outside meshing of driving gear 48 is connected with driven gear 410, the middle part fixed mounting of driven gear 410 has center pin 411, the surface fixed mounting of center pin 411 has brush roll 49, the both ends rotation of center pin 411 are connected with tripod 42, one of them end fixed joint of tripod 42 has straight-bar 44, the outside fixedly connected with arc-shaped cover 41 of straight-bar 44, arc-shaped cover 41 is located the outside of brush roll 49, the other both ends of tripod 42 all fixed mounting have first side wheel 46, one side fixed mounting of tripod 42 has second side wheel 47, second side wheel 47 is located the centre of two first side wheels 46, the middle part fixed mounting of driving gear 48 has second servo motor 43, the downside fixedly connected with shape frame 45 of second servo motor 43, one side of shape frame 45 and the outside fixed connection of side frame 3
In this embodiment, the cleaning mechanism 4 is installed on the side surface of the side frame 3 by the two sets of the two-way frame 45 and the two sets of the triangular frames 42, the first servo motor 55 is started and the second servo motor 43 is started, the second servo motor 43 drives the driving gear 48 to rotate, the driving gear 48 is meshed with the driven gear 410 to rotate, the driven gear 410 drives the central shaft 411 to rotate in the middle of the two triangular frames 42, the central shaft 411 drives the brush piece roller 49 to rotate, the rear door body 1 rises upwards, the brush piece roller 49 rotates and cleans the side surface of the rear door body 1, the first side wheel 46 and the second side wheel 47 roll outside the rear door body 1 in the rising process of the rear door body 1, dislocation movement of the rear door body 1 is limited, the brush piece roller 49 is guaranteed to be always parallel to the rear door body 1, the cleaning effect in the rising process of the rear door body 1 is improved, and the arc-shaped cover 41 covers the outer side of the brush piece roller 49 to avoid broken particles of cleaning and splashing.
Example two
According to the illustration shown in fig. 1-4, one side of the back door main body 1 is fixedly connected with two groups of mounting plates 21, two sides of the back door main body 1 and the mounting plates 21 are fixedly connected with a plurality of angle plates 22, two sides of the two groups of mounting plates 21 are fixedly connected with side frames 23, four corners of the other side of each side frame 23 are fixedly provided with first side wheel pieces 24, the middle part of the other side of each side frame 23 is fixedly provided with two groups of second side wheel pieces 25, the outer sides of the first side wheel pieces 24 and the second side wheel pieces 25 are in rolling clamping connection with the inner wall of the side frame 3, and the middle part of one side of the side frame 23 is fixedly connected with a trapezoid frame 26.
In this embodiment, through setting up and removing supporting mechanism 2, the back of back door main part 1 installs two sets of mounting panels 21, the both sides of every mounting panel 21 of group all increase a plurality of scute 22, from this reinforcing back door main part 1's structural strength, avoid bulk cargo side pressure back door main part 1 to take place to warp, first connecting piece 57 upwards pulls corresponding side bearer 23, drive first side wheel piece 24 and second side wheel piece 25 after the side bearer 23 atress and upwards move in side frame 3, two sets of elevating system 5 synchronous starts for the both ends of every mounting panel 21 all receive the equivalent force, and a plurality of first side wheel piece 24 and a plurality of second side wheel piece 25 card respectively roll in side frame 3 inside, guarantee that whole removal supporting mechanism 2 moves upwards perpendicularly, and then drive back door main part 1 upwards to rise, separate with the railway carriage terminal, swing striking bulk cargo heap when avoiding traditional double-door unloading, realize back door and railway carriage lift and open, more convenient self-discharging backward.
Example III
According to fig. 1-5, one side of one side frame 23 is fixedly connected with a first connecting piece 57, the other side of the first connecting piece 57 is fixedly connected with a chain belt 54, the inner side of the chain belt 54 is movably clamped with an inner gear 52, the middle part of the inner gear 52 is fixedly provided with a speed reducer 53, two ends of an output shaft of the speed reducer 53 are rotatably connected with the inside of a side frame 3, the lower side of the speed reducer 53 is fixedly provided with a first servo motor 55, the upper side of the speed reducer 53 is fixedly connected with a connecting plate 51, the upper end of the connecting plate 51 is fixedly connected with the inside of the side frame 3, the other end of the chain belt 54 is fixedly connected with a second connecting piece 58, the other side of the second connecting piece 58 is fixedly connected with a square frame 59, two sides of the square frame 59 are fixedly provided with third side wheels 510, the outer side of the third side wheels 510 is rotatably clamped with the inner wall of the side frame 3, the inner wall of the square frame 59 is fixedly provided with a balancing weight 511, and the inside of the side frame 3 is fixedly provided with a speed reducing assembly 56.
In this embodiment, by setting the lifting mechanism 5, because the weight of the two balancing weights 511 is equal to the weight of the rear door main body 1, in the initial state, the end of the chain belt 54 connected by the second connecting piece 58 is at a high point, the other end of the chain belt 54 connected by the first connecting piece 57 is at a low point, the internal gear 52 is not forced to rotate, the side frame 3 is forced to balance and block the wagon box, after the wagon box is transported to a designated position, the first servo motor 55 is started, the first servo motor 55 injects power into the speed reducer 53, two groups of internal gears 52 are simultaneously driven to rotate clockwise, the internal gears 52 drive the chain belt 54 to rotate, the speed reducer 53 and the internal gears 52 are limited to be fixed in position due to the connecting plate 51, the heights of two ends of the chain belt 54 change after the rotation, the gravity of the balancing weights 511 are applied to the square frame 59, the square frame 59 is forced to drive the two sides of the third side wheel 510 to roll downwards in the side frame 3, the third side wheel 510 pulls the second connecting piece 58 downwards, the second connecting piece 58 pulls one end of the chain belt 54 downwards, the other end of the chain belt 54 is fixed, the other end of the second servo motor moves upwards, the first group of the first connecting piece 57 is driven to drive the first group of the upper connecting piece 57 to move upwards, the first group of connecting piece 57 is driven to swing upwards, the two groups of the first connecting piece 57 are driven to swing upwards, the wagon box is driven to swing upwards, the two groups of the wagon box is separated from the wagon box is further separated from the wagon box is opened, and the end is opened, the end is convenient to be opened to be more convenient to swing upwards and the door to be opened, the bulk and the bulk door is opened, the door is opened, and the door is opened to be opened to the a door is opened.
Example IV
According to fig. 1-6, the speed reducing assembly 56 comprises a connecting short plate 561, one end of the connecting short plate 561 is fixedly connected with the inside of the side frame 3, the other end of the connecting short plate 561 is fixedly provided with an electric push rod 562, a movable rod of the electric push rod 562 is rotatably connected with a folded plate 563, two ends of the folded plate 563 are rotatably connected with a roller 564, and the outer side of the roller 564 is in rolling clamping connection with the outer side of the ladder frame 26.
In this embodiment, by providing the speed reducing assembly 56, when the side frame 23 moves up to approach the highest point, the outermost side of the ladder frame 26 starts to contact with the roller 564, the movable rod of the electric push rod 562 is always in an extended state, the folded plate 563 is pushed, the folded plate 563 pushes the corresponding roller 564, the ladder frame 26 pushes the roller 564 outwards, so that the friction force between the two rollers is increased, because the direction of the friction force is always opposite to the direction of the relative movement trend of the object, the ladder frame 26 has an upward movement trend relative to the roller 564, the ladder frame 26 is subjected to downward rolling friction force, and then both sides of the whole movable supporting mechanism 2 start to be subjected to downward rolling friction force, so that the upward movement speed of the movable supporting mechanism 2 drives the rear door body 1 is slowed, at this time, the first servo motor 55 is closed, the rear door body 1 is at the highest point, and the semitrailer is completely separated from the wagon, at this time, and bulk goods are dumped out from the wagon.
The application method and the working principle of the device are as follows: when the self-unloading semitrailer back door lifting device is used, the side frames 3 are fixed to the rearmost end of a self-unloading semitrailer carriage through screws, so that the back door main body 1 is attached to the carriage to form a closed carriage, after bulk cargoes are loaded, the self-unloading semitrailer back door lifting device is transported, two groups of mounting plates 21 are mounted on the back surface of the back door main body 1, a plurality of corner plates 22 are added on two sides of each group of mounting plates 21, and therefore the structural strength of the back door main body 1 is enhanced, and the deformation of the back door main body 1 caused by the side pressure of the bulk cargoes is avoided;
because the weight of the two balancing weights 511 is equal to that of the rear door body 1, in an initial state, the end of the chain belt 54 connected with the second connecting piece 58 is at a high point, the other end of the chain belt 54 connected with the first connecting piece 57 is at a low point, the internal gear 52 is not forced to rotate, the side frame 3 is forced to balance and block the carriage, after the carriage is transported to a designated position, the first servo motor 55 is started, the first servo motor 55 injects power into the speed reducer 53, the two ends of the output shaft of the speed reducer 53 simultaneously drive the two groups of internal gears 52 to rotate clockwise, the internal gear 52 drives the chain belt 54 to rotate, the positions of the speed reducer 53 and the internal gears 52 are limited by the connecting plate 51, the heights of the two ends of the chain belt 54 change after the rotation, the gravity of the balancing weights 511 is applied to the square frame 59, the square frame 59 drives the third side wheel 510 at two sides to roll downwards in the side frame 3, the third side wheel 510 pulls the second connecting piece 58 downwards, the second connecting piece 58 pulls the length of the chain belt 54 downwards, the other end of the chain 54 is fixed, and the other end of the chain belt moves upwards;
the corresponding side frames 23 are pulled upwards by the first connecting pieces 57, the side frames 23 drive the first side wheel pieces 24 and the second side wheel pieces 25 to move upwards in the side frames 3 after being stressed, the two groups of lifting mechanisms 5 are started synchronously, so that the two ends of each mounting plate 21 are subjected to the same force, the plurality of first side wheel pieces 24 and the plurality of second side wheel pieces 25 are respectively clamped in the side frames 3 to roll, the whole movable supporting mechanism 2 is ensured to move vertically upwards, the rear door main body 1 is driven to rise upwards and separate from the tail end of a carriage, the swing and impact of bulk goods piles during the traditional double-door unloading are avoided, the rear door and the carriage are lifted and opened, and the rear door is more convenient to turn over and self-unloading;
when the side frame 23 moves upwards to approach the highest point, the outermost side of the ladder frame 26 starts to contact with the roller 564, the movable rod of the electric push rod 562 is always in an extended state, the folded plate 563 is pushed, the folded plate 563 pushes the corresponding roller 564, the ladder frame 26 pushes the roller 564 outwards, so that the friction force between the two is increased, the direction of the friction force is always opposite to the direction of the relative movement trend of an object, the ladder frame 26 has an upward movement trend relative to the roller 564, the ladder frame 26 is subjected to downward rolling friction force, and then both sides of the whole movable supporting mechanism 2 start to be subjected to downward rolling friction force, so that the movable supporting mechanism 2 drives the upward movement speed of the rear door body 1 to be slow, at the moment, the first servo motor 55 is closed, the rear door body 1 is at the highest point and is completely separated from the carriage, at the moment, the semitrailer is overturned backwards, and bulk goods are dumped from the carriage;
the two groups of square brackets 45 and the two groups of triangular brackets 42 mount the cleaning mechanism 4 on the side surface of the side frame 3, the first servo motor 55 is started and the second servo motor 43 is started, the second servo motor 43 drives the driving gear 48 to rotate, the driving gear 48 is meshed with the driven gear 410 to rotate, the driven gear 410 drives the central shaft 411 to rotate in the middle of the two triangular brackets 42, the central shaft 411 drives the brush roll 49 to rotate, the rear door body 1 rises upwards, the brush roll 49 rotates and cleans the side surface of the rear door body 1, in the rising process of the rear door body 1, the first side wheel 46 and the second side wheel 47 roll on the outer side of the rear door body 1, dislocation movement of the rear door body 1 is limited, the brush roll 49 is guaranteed to be always parallel to the rear door body 1, the cleaning effect in the rising process of the rear door body 1 is improved, and the arc cover 41 covers the outer side of the brush roll 49 to avoid broken particles of cleaning and splashing.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (8)
1. The utility model provides a self-discharging semitrailer back door elevating gear, includes back door main part (1) and side frame (3), its characterized in that: two groups of movable supporting mechanisms (2) are fixedly connected to one side of the rear door main body (1), lifting mechanisms (5) are fixedly connected to two ends of the two groups of movable supporting mechanisms (2), the lifting mechanisms (5) are located inside the side frames (3), and a cleaning mechanism (4) is fixedly connected to one side of each side frame (3);
two groups of mounting plates (21) are fixedly connected to one side of the rear door main body (1), a plurality of corner plates (22) are fixedly connected to two sides of the rear door main body (1) and the mounting plates (21), side frames (23) are fixedly connected to two sides of the two groups of mounting plates (21), first side wheel pieces (24) are fixedly arranged at four corners of the other side of each side frame (23), and two groups of second side wheel pieces (25) are fixedly arranged in the middle of the other side of each side frame (23);
the cleaning mechanism (4) comprises a driving gear (48), a driven gear (410) is connected to the outer side of the driving gear (48) in a meshed mode, a central shaft (411) is fixedly installed in the middle of the driven gear (410), a brush roll (49) is fixedly installed on the outer surface of the central shaft (411), a tripod (42) is rotatably connected to two ends of the central shaft (411), a straight rod (44) is fixedly clamped to one end of the tripod (42), an arc-shaped cover (41) is fixedly connected to the outer side of the straight rod (44), the arc-shaped cover (41) is located on the outer side of the brush roll (49), first side wheels (46) are fixedly installed at the other two ends of the tripod (42), and a second side wheel (47) is fixedly installed on one side of the tripod (42), and located between the two first side wheels (46).
The outer sides of the first side wheel piece (24) and the second side wheel piece (25) are in rolling clamping connection with the inner wall of the side frame (3), and a trapezoid frame (26) is fixedly connected to the middle part of one side of the side frame (23);
the inside fixed mounting of side frame (3) has deceleration assembly (56), deceleration assembly (56) are including connecting short board (561), connect the one end of short board (561) with the inside fixed connection of side frame (3), the other end fixed mounting of connecting short board (561) has electric putter (562), the movable rod of electric putter (562) rotates and is connected with folded plate (563), the both ends of folded plate (563) all rotate and are connected with gyro wheel (564), the outside of gyro wheel (564) with the outside roll joint of ladder frame (26).
2. The self-unloading semitrailer rear door lifting device according to claim 1, wherein: the middle part fixed mounting of driving gear (48) has second servo motor (43), the downside fixedly connected with shape frame (45) of second servo motor (43), one side of shape frame (45) with the outside fixed connection of side frame (3).
3. The self-unloading semitrailer rear door lifting device according to claim 2, wherein: one side of one side frame (23) is fixedly connected with a first connecting piece (57), the other side of the first connecting piece (57) is fixedly connected with a chain belt (54), and an inner gear (52) is movably clamped on the inner side of the chain belt (54).
4. A rear door lifting device of a dump semitrailer according to claim 3, wherein: the middle part of internal gear (52) fixed mounting has speed reducer (53), the output shaft both ends of speed reducer (53) all with the inside rotation connection of side frame (3).
5. The self-unloading semitrailer rear door lifting device according to claim 4, wherein: the lower side of speed reducer (53) is fixedly mounted with first servo motor (55), the upside of speed reducer (53) is fixedly connected with connecting plate (51).
6. The self-unloading semitrailer rear door lifting device according to claim 5, wherein: the upper end of the connecting plate (51) is fixedly connected with the inside of the side frame (3), and the other end of the chain belt (54) is fixedly connected with a second connecting piece (58).
7. The self-unloading semitrailer rear door lifting device as recited in claim 6, wherein: the other side of the second connecting piece (58) is fixedly connected with a square frame (59), and the two sides of the square frame (59) are fixedly provided with third side wheel pieces (510).
8. The self-unloading semitrailer rear door lifting device of claim 7, wherein: the outer side of the third side wheel piece (510) is in rolling clamping connection with the inner wall of the side frame (3), and a balancing weight (511) is fixedly arranged on the inner wall of the square frame (59).
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| CN202310597193.2A CN116533852B (en) | 2023-05-23 | 2023-05-23 | Self-discharging semitrailer back door elevating gear |
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| CN202310597193.2A CN116533852B (en) | 2023-05-23 | 2023-05-23 | Self-discharging semitrailer back door elevating gear |
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| CN116533852B true CN116533852B (en) | 2023-11-07 |
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| CN217623486U (en) * | 2022-08-02 | 2022-10-21 | 河北诚悦专用汽车制造有限公司 | Flat-plate self-unloading semitrailer |
| CN218858255U (en) * | 2022-11-28 | 2023-04-14 | 山东鑫永成专用车制造股份有限公司 | Back door lifting device of self-discharging semitrailer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050145624A1 (en) * | 2003-12-30 | 2005-07-07 | Minegar Peter J. | Construction residue transport system |
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|---|---|---|---|---|
| CN101428578A (en) * | 2008-11-20 | 2009-05-13 | 重庆宗申技术开发研究有限公司 | Lifting mechanism of transport vehicle |
| KR20190018599A (en) * | 2017-08-15 | 2019-02-25 | 정윤성 | Lifting apparatus for cargo van |
| KR102093512B1 (en) * | 2019-06-10 | 2020-03-25 | 주식회사 우진산업 | Flood Gate System Using Hydraulic Motor |
| CN215408171U (en) * | 2021-07-08 | 2022-01-04 | 东莞市富远机械有限公司 | Electric counterweight door |
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| CN116533852A (en) | 2023-08-04 |
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Denomination of invention: A lifting device for the rear door of a dump semi-trailer Effective date of registration: 20231128 Granted publication date: 20231107 Pledgee: Shandong Mengyin Rural Commercial Bank Co.,Ltd. Pledgor: MENGYIN PENGCHENG WANLI VEHICLE CO.,LTD. Registration number: Y2023980068276 |
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