Unloading device for logistics transportation

Abstract

The invention relates to the technical field of logistics transportation, and discloses an unloading device for logistics transportation, which comprises belt conveying equipment, the belt conveying equipment is composed of a loading frame, a conveying belt and a servo motor, the conveying belt is rotatably mounted on the inner wall of the loading frame, and the servo motor is fixed on one side wall, far away from the conveying belt, of the loading frame. According to the unloading device for logistics transportation, through the arrangement of the cleaning part and the driven part, the cleaning roller can clean the surface of the conveying belt, and after cleaning is conducted for a period of time, the cleaning roller can be controlled to move up and down, so that the conveying belt can be conveniently cleaned, and the unloading efficiency is improved. The cleaning roller is arranged on the conveying belt, so that the cleaning roller cannot be always attached and propped against the conveying belt and is prevented from always propping against the conveying belt, the cleaning roller and the conveying belt are always kept in a friction state, abrasion of the conveying belt is accelerated, and the service life of the conveying belt is further prolonged while the conveying belt is cleaned.

Description

Technical Field

[0001] The present invention relates to the technical field of logistics and transportation, and in particular to an unloading device used for logistics and transportation. Background Art

[0002] Loading and unloading plays an important role in logistics costs. In logistics activities, loading and unloading activities are constantly occurring and repeated, and their frequency is higher than other logistics activities. Moreover, each loading and unloading activity takes a long time, so it often becomes the key to determining the speed of logistics.

[0003] At present, when unloading in logistics transportation, belt conveyors are usually used for transportation. For example, a unloading device for logistics transportation that is easy to classify is published with the announcement number "CN109178826B". The unloading is achieved by placing the transported items on the belt conveyor for transportation. However, during use, due to the diversity of the transported items, some dirt is likely to adhere to the belt of the belt conveyor during the transportation process. After long-term use, the sharp particles and lumps in the dirt will cause scratches and wear on the belt, shortening the service life of the belt. Moreover, with continuous use, the dirt may enter the bearing parts of the drum and rollers, affecting the normal operation of the bearings, accelerating the wear of the bearings, and affecting the service life of the belt conveyor. For this reason, we propose an unloading device for logistics transportation. Summary of the invention

[0004] The object of the present invention is to provide a cargo unloading device for logistics transportation to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cargo unloading device for logistics transportation, comprising a belt conveyor device, the belt conveyor device consisting of a loading frame, a conveyor belt and a servo motor, the conveyor belt is rotatably mounted on the inner wall of the loading frame, the servo motor is fixed to a side wall of the loading frame away from the conveyor belt, the output shaft of the servo motor passes through a side wall of the loading frame away from the conveyor belt, the output shaft of the servo motor is fixedly connected to a driving shaft of the conveyor belt, a bracket is fixed to the side wall of the loading frame, a cleaning part for cleaning the conveyor belt and a driven part for controlling the cleaning part to move up and down are arranged on the bracket;

[0006] The cleaning part includes a slide plate, which passes through a side wall of the bracket close to the conveyor belt. The slide plate and the bracket are penetrated by a rotating rod and are rotatably connected with the rotating rod. A disc is fixed to the end of the rotating rod away from the bracket, and a cleaning roller is fixed to the side of the disc away from the bracket. The cleaning roller contacts the surface of the conveyor belt and can wipe and clean the conveyor belt to prevent dirt from sticking to the conveyor belt and affecting the service life of the conveyor belt. The side surface of the slide plate is made of rubber and has a certain friction with the bracket, so that the slide plate can move only when it is subjected to a certain degree of external force.

[0007] Preferably, the driven part includes: a transmission roller, which is transmission-connected with the conveyor belt, the transmission roller passes through the bracket and is rotationally connected with the bracket, a driving gear is fixed on the side of the transmission roller close to the bracket, the driving gear is meshed with the driven gear, the driven gear and the bracket are penetrated by a rotating shaft, the rotating shaft is fixedly connected with the driven gear, the rotating shaft is rotationally connected with the bracket, the rotating shaft and the transmission roller are both penetrated and fixed with half gears, the half gears are provided with two groups, one group of half gears is fixed with the rotating shaft, and the other group of half gears is fixed with the transmission roller, a large gear is rotationally installed on the side of the slide plate close to the conveyor belt, and the slide plate close to the conveyor belt is rotationally installed with a large gear. A transverse groove is provided on one side of the large gear, and a spiral groove is provided on the side of the large gear close to the slide plate, a slider is slidably installed on the inner side of the transverse groove, and one end of the slider close to the large gear is inserted into the inner side of the spiral groove, and the top of the slide plate is penetrated by a vertical rod and slidably connected with the vertical rod, and a support rod is hinged on the side of the vertical rod away from the slide plate, and one end of the support rod away from the slide plate is hinged to a fixed block, and the fixed block is fixed to the side of the bracket close to the slide plate, and two groups of vertical rods, support rods and fixed blocks are provided, and the two groups of vertical rods, support rods and fixed blocks are symmetrically arranged. When the conveyor belt is working, the transmission roller is driven to rotate, and the transmission roller drives the active gear to rotate. At this time, the driven gear The wheel drives the rotating shaft to rotate in the opposite direction, and the transmission roller drives the half gear fixed on itself to rotate. When the teeth of the half gear rotate to mesh with the large gear, the large gear rotates. As the large gear gradually rotates, the slider can only move left and right due to the horizontal groove. The large gear pushes the slider to slide along the horizontal groove through its own spiral groove. When the slider hits a set of vertical rods and pushes the vertical rods to move together, the fixed block cannot move, and the vertical rods squeeze the support rods, thereby pushing the slide plate to move downward as a whole. When the slide plate moves downward with the large gear, the large gear moves to the position of the rotating shaft, and as the rotating shaft rotates with the half gear fixed to itself, When the sliding block is in motion, the half gear rotates to mesh with the large gear, and the large gear can then rotate. Since the half gear fixed to the rotating shaft rotates in opposite directions to the half gear fixed to the driving roller, the large gear can gradually control the slider to reset. As the slider contacts the other set of vertical rods, the other set of vertical rods can contact the support rods to push the sliding block as a whole to reset upward, thereby controlling the cleaning roller to move up and down, so that the cleaning roller will not always keep in contact with the conveyor belt, thus avoiding the cleaning roller from always contacting the conveyor belt. The cleaning roller and the conveyor belt are always in a state of friction, which accelerates the wear of the conveyor belt and further improves the service life of the conveyor belt while cleaning the conveyor belt.

[0008] Preferably, the bracket is also provided with an auxiliary part for cleaning the cleaning roller and an interference part for controlling the auxiliary part, the auxiliary part includes a reciprocating screw, the reciprocating screw is rotatably installed on a side wall of the bracket close to the conveyor belt, the reciprocating screw penetrates the moving block and is threadedly connected to the moving block, the moving block is penetrated by a guide rod and is slidably connected to the guide rod, the guide rod is fixed on a side wall of the bracket close to the reciprocating screw, the top of the moving block is connected to the cleaning brush through a linkage mechanism, when the reciprocating screw rotates, the moving block can move back and forth with the linkage mechanism and the cleaning brush, the cleaning brush can clean the cleaning roller back and forth, to avoid dirt remaining on the cleaning roller.

[0009] Preferably, the linkage mechanism includes: a link one, the bottom of the link one is fixed on the top of the moving block, the top of the moving block is hinged with a link two, the link one is hinged with a link three on the side close to the link two, the top of the link two is hinged with a link four, the end of the link three away from the link one is hinged at the bottom of the link four, the end of the link four away from the link two is hinged with a link five, the top of the link five is fixed to the cleaning brush, the link five is hinged with a link six on the side close to the link four, the end of the link six away from the link five is hinged at the top of the link three, the bottom of the link three is fixed with a torsion spring, the end of the torsion spring away from the link three is fixed to the link one, under the action of the torsion spring, the link three can swing upward at the position hinged with the link one, thereby driving the overall linkage mechanism to lift the cleaning brush and move it upward, but due to the limiting effect of the link six, the cleaning brush can move upward smoothly and always maintain a vertical state.

[0010] Preferably, the interference part includes a connecting gear, which is rotatably mounted on the inner wall of the bracket, the connecting gear meshes with the driven gear, and an annular tooth is provided on the side of the connecting gear away from the conveyor belt, the connecting gear and the reciprocating screw are penetrated by a connecting rod, the reciprocating screw is slidably connected to the connecting rod, a return spring is fixed on the inner wall of the reciprocating screw, one end of the return spring away from the reciprocating screw is fixed to the connecting rod, the end of the connecting rod close to the bracket is hinged with a clamping rod, and the end of the clamping rod away from the connecting rod contacts the connecting gear, a circular ring is rotatably mounted on the surface of the reciprocating screw, a connecting ring is slidably mounted on the surface of the circular ring, and a hinged rod is hinged on the surface of the connecting ring. The end of the hinged rod away from the connecting ring is hinged to the bottom of the U-shaped frame, and the U-shaped frame is slidably mounted on a side wall of the bracket close to the conveyor belt, a squeezing roller is fixed to the side of the disc away from the cleaning roller, an L-shaped interference rod is fixed to the bottom of the U-shaped frame, and the L-shaped interference rod is in contact with the top of the connecting rod three, a fixed disk is fixed to the end of the rotating rod away from the disc, an elastic telescopic rod is hinged to the side of the fixed disk away from the rotating rod, and an end of the elastic telescopic rod away from the fixed disk is hinged to the inner wall of the bracket, a spring sheet is fixed to the inner wall of the bracket, and an end of the spring sheet away from the bracket is fixed to the elastic telescopic rod. It is worth noting that the elastic telescopic rod is composed of a telescopic rod and a spring, and the spring provides elastic force to the telescopic rod so that it does not When subjected to force, it can bounce open, which is a simple assembly of the prior art. When the slide plate moves downward, the slide plate moves downward with the rotating rod, the disc and the fixed plate, and the fixed plate squeezes the elastic telescopic rod. At this time, under the limiting action of the spring sheet, the elastic telescopic rod cannot swing to the side away from the spring sheet, and then the fixed plate can only squeeze the elastic telescopic rod to contract and continue to move downward with the fixed plate. The elastic telescopic rod can be squeezed to change its angle, thereby controlling the rotation of the fixed plate. When the slide plate cannot move downward any further, the fixed plate just rotates 180° at this time, and the fixed plate drives the disc to rotate together through the rotating rod, and the disc drives the cleaning roller to rotate, so that the cleaning roller rotates to the bottom position, so that the cleaning brush can The cleaning brush contacts the side of the cleaning roller that contacts the conveyor belt for cleaning, and when the disc rotates, the disc drives the squeezing roller to rotate together, and the squeezing roller cannot continue to resist the top of the U-shaped frame, and then the U-shaped frame cannot continue to apply downward force to the connecting rod three through the L-shaped resistance rod, so that the linkage mechanism can lift the cleaning brush to contact the bottom of the cleaning roller, and when the slide plate moves upward, the rotating rod drives the fixed plate to move upward together. At this time, under the push of the spring piece, the elastic telescopic rod swings and resets, and the elastic telescopic rod gradually resets under its own elastic action, pushing the fixed plate to rotate 180° again, thereby realizing the control of the cleaning roller to reset, so that after the cleaning roller moves upward and resets, it can contact the bottom of the conveyor belt again to achieve cleaning.

[0011] Compared with the prior art, the present invention provides a cargo unloading device for logistics transportation, which has the following beneficial effects:

[0012] 1. The unloading device for logistics transportation can clean the surface of the conveyor belt by the cleaning part and the driven part, and after cleaning for a period of time, the cleaning roller can be controlled to move up and down, so that the cleaning roller will not always keep in contact with the conveyor belt, thus avoiding the cleaning roller always in contact with the conveyor belt, and the cleaning roller and the conveyor belt always keep in a friction state, which accelerates the wear of the conveyor belt, thereby achieving the goal of cleaning the conveyor belt and further improving the service life of the conveyor belt.

[0013] 2. The unloading device for logistics transportation has a linkage mechanism. When the connecting rod three is not in conflict, the connecting rod three can swing upward at the hinged position with the connecting rod one under the action of the torsion spring, thereby driving the overall linkage mechanism to lift the cleaning brush and move it upward. However, due to the limiting effect of the connecting rod six, the cleaning brush can move upward steadily and always maintain a vertical state to be squeezed with the cleaning roller, so that the cleaning brush can stably and effectively clean the cleaning roller; at the same time, the water stains absorbed on the surface of the cleaning roller are squeezed to avoid damage to the surface of the conveyor belt due to impurities sticking to the surface of the cleaning roller, thereby affecting the service life of the conveyor belt.

[0014] 3. The unloading device for logistics transportation, when the cleaning roller moves downward and no longer conflicts with the conveyor belt, the elastic telescopic rod can pull the fixed plate to rotate, thereby controlling the cleaning roller to rotate to the bottom position, so that when the cleaning brush cleans the contact position between the cleaning roller and the conveyor belt, it can avoid the impurities brushed off from splashing onto the surface of the conveyor belt, thereby preventing the phenomenon of re-adhesion. When the cleaning roller moves upward, under the push of the spring piece, the elastic telescopic rod can swing and reset, so that the fixed plate drives the cleaning roller to rotate and reset again, so that the cleaning roller can be kept in conflict with the conveyor belt again, and the conveyor belt can be cleaned again. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view structural schematic diagram of the present invention;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0017] Figure 3 It is a schematic diagram of the connection structure of the support, the driven part and the cleaning part of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the driven part of the present invention when the support is removed;

[0019] Figure 5 It is a schematic diagram of the exploded structure of the connection section of the large gear and the slide plate of the present invention;

[0020] Figure 6 It is a schematic diagram of the connection structure between the auxiliary part and the conflicting part of the present invention;

[0021] Figure 7 It is a schematic diagram of the linkage mechanism structure of the present invention;

[0022] Figure 8 It is a schematic diagram of the cross-sectional structure of the connection between the reciprocating screw rod and the abutment part of the present invention;

[0023] Fig. 9 It is a schematic diagram of the connecting structure of the connecting gear, connecting rod and clamping rod of the present invention.

[0024] In the figure: 11, loading frame; 12, conveyor belt; 13, servo motor; 2, driven part; 21, transmission roller; 22, driving gear; 23, driven gear; 24, rotating shaft; 25, half gear; 26, large gear; 27, transverse groove; 28, spiral groove; 29, slider; 210, vertical rod; 211, support rod; 212, fixed block; 3, cleaning part; 31, slide plate; 32, rotating rod; 33, disc; 34, cleaning roller; 4, auxiliary part; 41, reciprocating screw rod; 42, moving block; 43, guide rod; 4 4. Linkage mechanism; 45. Cleaning brush; 441. Linkage rod one; 442. Linkage rod two; 443. Linkage rod three; 444. Linkage rod four; 445. Linkage rod five; 446. Linkage rod six; 447. Torsion spring; 5. Interference part; 51. Connecting gear; 52. Connecting rod; 53. Return spring; 54. Clamping rod; 55. Ring; 56. Connecting ring; 57. Articulated rod; 58. U-shaped frame; 59. Extrusion roller; 510. L-shaped interference rod; 511. Fixed plate; 512. Elastic telescopic rod; 513. Shrapnel; 6. Bracket. DETAILED DESCRIPTION

[0025] like Figure 1-Figure 9 As shown, the present invention provides a technical solution: a unloading device for logistics transportation, including a belt conveyor device, the belt conveyor device consists of a loading frame 11, a conveyor belt 12 and a servo motor 13, the conveyor belt 12 is rotatably installed on the inner wall of the loading frame 11, the servo motor 13 is fixed to a side wall of the loading frame 11 away from the conveyor belt 12, the output shaft of the servo motor 13 passes through a side wall of the loading frame 11 away from the conveyor belt 12, the output shaft of the servo motor 13 is fixedly connected to the driving shaft of the conveyor belt 12, the side wall of the loading frame 11 is fixed with a bracket 6, the bracket 6 is provided with a cleaning part 3 for cleaning the conveyor belt 12 and a driven part 2 for controlling the cleaning part 3 to move up and down.

[0026] Among them, the cleaning part 3 includes a slide plate 31, which passes through a side wall of the bracket 6 close to the conveyor belt 12. The slide plate 31 and the bracket 6 are penetrated by a rotating rod 32 and are rotatably connected with the rotating rod 32. A disc 33 is fixed to the end of the rotating rod 32 away from the bracket 6, and a cleaning roller 34 is fixed to the side of the disc 33 away from the bracket 6. The cleaning roller 34 contacts the surface of the conveyor belt 12, and the cleaning roller 34 can wipe and clean the conveyor belt 12 to prevent dirt from sticking to the conveyor belt 12 and affecting the service life of the conveyor belt 12. The side surface of the slide plate 31 is made of rubber and has a certain friction with the bracket 6, so that the slide plate 31 can move only when it is subjected to a certain degree of external force.

[0027] The driven part 2 includes a transmission roller 21, which is transmission-connected with the conveyor belt 12, and the transmission roller 21 passes through the bracket 6 and is rotationally connected with the bracket 6. A driving gear 22 is fixed on the side of the transmission roller 21 close to the bracket 6, and the driving gear 22 is meshed with the driven gear 23. The driven gear 23 and the bracket 6 are penetrated by a rotating shaft 24, and the rotating shaft 24 is fixedly connected with the driven gear 23. The rotating shaft 24 is rotationally connected with the bracket 6. The rotating shaft 24 and the transmission roller 21 are penetrated and fixed with a half gear 25. The half gear 25 is provided with two groups, one group of half gears 25 is fixed with the rotating shaft 24, and the other group of half gears 25 is fixed with the transmission roller 21. A large gear 26 is rotationally installed on the side of the slide plate 31 close to the conveyor belt 12, and the slide plate 31 close to the large gear 26 A transverse groove 27 is provided on one side, a spiral groove 28 is provided on the side of the large gear 26 close to the slide plate 31, a slider 29 is slidably installed on the inner side of the transverse groove 27, and one end of the slider 29 close to the large gear 26 is inserted into the inner side of the spiral groove 28. The top of the slide plate 31 is penetrated by the vertical rod 210 and is slidably connected with the vertical rod 210. A support rod 211 is hinged on the side of the vertical rod 210 away from the slide plate 29, and one end of the support rod 211 away from the slide plate 29 is hinged to a fixed block 212, and the fixed block 212 is fixed on the side of the bracket 6 close to the slide plate 31. Two groups of vertical rods 210, support rods 211 and fixed blocks 212 are provided, and the two groups of vertical rods 210, support rods 211 and fixed blocks 212 are symmetrically arranged. When the conveyor belt 12 is working, the transmission roller 21 is driven to rotate The transmission roller 21 drives the driving gear 22 to rotate. At this time, the driven gear 23 drives the rotating shaft 24 to rotate in the opposite direction. The transmission roller 21 drives the half gear 25 fixed on itself to rotate. When the teeth of the half gear 25 rotate to mesh with the large gear 26, the large gear 26 rotates. As the large gear 26 gradually rotates, since the slider 29 is limited by the transverse groove 27 and can only move left and right, the large gear 26 pushes the slider 29 to slide along the transverse groove 27 through the spiral groove 28 opened by itself. When the slider 29 contacts a group of vertical rods 210 and pushes the vertical rods 210 to move together, since the fixed block 212 cannot move, the vertical rod 210 squeezes the support rod 211, thereby pushing the slide plate 31 to move downward as a whole. When the slide plate 31 brings After the large gear 26 moves downward, it moves to the position of the rotating shaft 24. As the rotating shaft 24 rotates with the half gear 25 fixed to itself, the half gear 25 rotates to mesh with the large gear 26, and the large gear 26 can rotate. Since the half gear 25 fixed to the rotating shaft 24 and the half gear 25 fixed to the driving roller 21 rotate in opposite directions, the large gear 26 can gradually control the slider 29 to reset. As the slider 29 abuts against the other set of vertical rods 210, the other set of vertical rods 210 can push the slide plate 31 to reset upward as a whole by abutting the support rod 211, thereby controlling the cleaning roller 34 to move up and down, so that the cleaning roller 34 will not always keep in contact with the conveyor belt 12, thereby avoiding the cleaning roller 34 from always abutting against the conveyor belt 12.The cleaning roller 34 and the conveyor belt 12 are kept in a friction state, which accelerates the wear of the conveyor belt 12, thereby achieving the cleaning of the conveyor belt 12 and further improving the service life of the conveyor belt 12.

[0028] In this embodiment, the bracket 6 is also provided with an auxiliary part 4 for cleaning the cleaning roller 34 and a resistance part 5 for controlling the auxiliary part 4. The auxiliary part 4 includes a reciprocating screw 41, which is rotatably installed on a side wall of the bracket 6 close to the conveyor belt 12. The reciprocating screw 41 penetrates the moving block 42 and is threadedly connected to the moving block 42. The moving block 42 is penetrated by the guide rod 43 and is slidably connected to the guide rod 43. The guide rod 43 is fixed on the side wall of the bracket 6 close to the reciprocating screw 41. The top of the moving block 42 is connected to the cleaning brush 45 through a linkage mechanism 44. When the reciprocating screw 41 rotates, the moving block 42 can move back and forth with the linkage mechanism 44 and the cleaning brush 45, and the cleaning brush 45 can clean the cleaning roller 34 back and forth to avoid dirt remaining on the cleaning roller 34.

[0029] It is worth noting that the linkage mechanism 44 includes a link rod 1 441, the bottom of the link rod 1 441 is fixed to the top of the moving block 42, the top of the moving block 42 is hinged with a link rod 2 442, the link rod 1 441 is hinged with a link rod 3 443 on one side close to the link rod 2 442, the top of the link rod 2 442 is hinged with a link rod 444, the end of the link rod 3 443 away from the link rod 1 441 is hinged to the bottom of the link rod 444, the end of the link rod 444 away from the link rod 2 442 is hinged with a link rod 5 445, the top of the link rod 5 445 is fixed to the cleaning brush 45, and the link rod 5 445 is hinged to the end of the link rod 444. The side is hinged with connecting rod six 446, and the end of connecting rod six 446 away from connecting rod five 445 is hinged at the top of connecting rod three 443, and a torsion spring 447 is fixed to the bottom of connecting rod three 443, and the end of torsion spring 447 away from connecting rod three 443 is fixed to connecting rod one 441. Under the action of torsion spring 447, connecting rod three 443 can swing upward at the position hinged with connecting rod one 441, thereby driving the overall linkage mechanism 44 to lift the cleaning brush 45 and move it upward, but due to the limiting effect of connecting rod six 446, the cleaning brush 45 can move upward smoothly and always maintain a vertical state. This structure is consistent with the pantograph structure.

[0030] In addition, the resistance part 5 includes a connecting gear 51, which is rotatably mounted on the inner wall of the bracket 6, the connecting gear 51 is meshed with the driven gear 23, and an annular tooth is provided on the side of the connecting gear 51 away from the conveyor belt 12. The connecting gear 51 and the reciprocating screw rod 41 are penetrated by a connecting rod 52, and the reciprocating screw rod 41 is slidably connected to the connecting rod 52. A return spring 53 is fixed on the inner wall of the reciprocating screw rod 41, and one end of the return spring 53 away from the reciprocating screw rod 41 is fixed to the connecting rod 52. A clamping rod 54 is hinged at one end of the connecting rod 52 close to the bracket 6, and one end of the clamping rod 54 away from the connecting rod 52 contacts with the connecting gear 51, a circular ring 55 is rotatably mounted on the surface of the reciprocating screw rod 41, and a connecting ring 56 is slidably mounted on the surface of the circular ring 55, and the surface of the connecting ring 56 The surface is hinged with a hinge rod 57, and one end of the hinge rod 57 away from the connecting ring 56 is hinged at the bottom of the U-shaped frame 58. The U-shaped frame 58 is slidably installed on a side wall of the bracket 6 close to the conveyor belt 12. A squeezing roller 59 is fixed to the side of the disc 33 away from the cleaning roller 34. An L-shaped resistance rod 510 is fixed to the bottom of the U-shaped frame 58. The L-shaped resistance rod 510 contacts the top of the connecting rod three 443. A fixed disk 511 is fixed to the end of the rotating rod 32 away from the disc 33. An elastic telescopic rod 512 is hinged to the side of the fixed disk 511 away from the rotating rod 32. The end of the elastic telescopic rod 512 away from the fixed disk 511 is hinged on the inner wall of the bracket 6. A spring piece 513 is fixed to the inner wall of the bracket 6. The end of the spring piece 513 away from the bracket 6 is fixed to the elastic telescopic rod 512. It is worth noting that the elastic telescopic rod 512 is composed of a telescopic rod and a spring. The spring provides elastic force to the telescopic rod so that it can be ejected when no force is applied. It is a simple assembly of the prior art. When the slide plate 31 moves downward, the slide plate 31 moves downward with the rotating rod 32, the disk 33 and the fixed disk 511. The fixed disk 511 squeezes the elastic telescopic rod 512. At this time, under the restriction of the spring sheet 513, the elastic telescopic rod 512 cannot swing to the side away from the spring sheet 513, and then the fixed disk 511 can only squeeze the elastic telescopic rod 512 to contract. As the fixed disk 511 continues to move downward, the elastic telescopic rod 512 can be squeezed to change its angle, thereby controlling the rotation of the fixed disk 511. When the slide plate 31 cannot continue to move downward, At this time, the fixed plate 511 rotates 180 degrees, and the fixed plate 511 drives the disc 33 to rotate together through the rotating rod 32, and the disc 33 drives the cleaning roller 34 to rotate, so that the cleaning roller 34 rotates to the bottom position, so that the cleaning brush 45 can contact the side of the cleaning roller 34 that contacts the conveyor belt 12 for cleaning, and when the disc 33 rotates, the disc 33 drives the squeezing roller 59 to rotate together, and the squeezing roller 59 cannot continue to resist the top of the U-shaped frame 58, and then the U-shaped frame 58 cannot continue to apply downward force to the connecting rod three 443 through the L-shaped resistance rod 510, so that the linkage mechanism 44 can lift the cleaning brush 45 to contact the bottom of the cleaning roller 34, and when the slide plate 31 moves upward, the rotating rod 32 drives the fixed plate 511 to move upward together,At this time, under the push of the spring sheet 513, the elastic telescopic rod 512 swings back to its original position, and the elastic telescopic rod 512 gradually returns to its original position under its own elastic action, pushing the fixed plate 511 to rotate 180° again, thereby controlling the cleaning roller 34 to return to its original position, so that the cleaning roller 34 can contact the bottom of the conveyor belt 12 again to achieve cleaning after moving upward and returning to its original position.

[0031] As an application of this embodiment:

[0032] By starting the servo motor 13 to drive the conveyor belt 12 to work, the objects are transported through the conveyor belt 12 to achieve unloading. When the conveyor belt 12 is working, the cleaning roller 34 contacts the surface of the conveyor belt 12 to achieve cleaning.

[0033] When the conveyor belt 12 is working, the driving roller 21 rotates. As the driving roller 21 rotates continuously, the driving roller 21 drives the half gear 25 fixed on itself to rotate. When the teeth of the half gear 25 rotate to mesh with the large gear 26, the large gear 26 rotates. As the large gear 26 gradually rotates, since the slider 29 is limited by the transverse groove 27 and can only move left and right, the large gear 26 pushes the slider 29 to slide along the transverse groove 27 through the spiral groove 28 opened by itself. When the slider 29 contacts a group of vertical rods 210 and pushes the vertical rods 210 to move together, since the fixed block 212 cannot move, the vertical rod 210 squeezes the support rod 211, thereby pushing the slide plate 31 to move downward as a whole. When the slide plate 31 moves downward with the large gear 26, the large gear 26 moves to the position of the rotating shaft 24. As the rotating shaft 24 brings The half gear 25 fixed to itself rotates, and after the half gear 25 rotates to mesh with the large gear 26, the large gear 26 can rotate. Since the half gear 25 fixed to the rotating shaft 24 and the half gear 25 fixed to the driving roller 21 rotate in opposite directions, the large gear 26 can gradually control the slider 29 to reset. As the slider 29 abuts against another set of vertical rods 210, the other set of vertical rods 210 can push the slide plate 31 to reset upward as a whole by abutting against the support rods 211, thereby controlling the cleaning roller 34 to move up and down, so that the cleaning roller 34 will not always keep in contact with the conveyor belt 12, avoiding the cleaning roller 34 from always abutting against the conveyor belt 12, and the cleaning roller 34 and the conveyor belt 12 will always maintain a friction state, thereby accelerating the wear of the conveyor belt 12, thereby achieving the goal of cleaning the conveyor belt 12 while further improving the service life of the conveyor belt 12.

[0034] When the slide plate 31 moves downward, the slide plate 31 moves downward with the rotating rod 32, the disk 33 and the fixed plate 511, and the fixed plate 511 squeezes the elastic telescopic rod 512. At this time, under the restriction of the spring plate 513, the elastic telescopic rod 512 cannot swing to the side away from the spring plate 513, and then the fixed plate 511 can only squeeze the elastic telescopic rod 512 to contract, and as the fixed plate 511 continues to move downward, the elastic telescopic rod 512 can be squeezed to change its angle, thereby controlling the rotation of the fixed plate 511. When the slide plate 31 cannot move downward any further, the fixed plate 511 just rotates 180 degrees, and the fixed plate 511 drives the disk 33 to rotate together through the rotating rod 32 The disc 33 drives the cleaning roller 34 to rotate, so that the cleaning roller 34 rotates to the bottom position, so that the cleaning brush 45 can contact the side of the cleaning roller 34 that contacts the conveyor belt 12 for cleaning, and when the disc 33 rotates, the disc 33 drives the squeezing roller 59 to rotate together, and the squeezing roller 59 cannot continue to resist the top of the U-shaped frame 58, and then the U-shaped frame 58 cannot continue to apply downward force to the connecting rod three 443 through the L-shaped resistance rod 510. Under the action of the torsion spring 447, the connecting rod three 443 can swing upward at the position hinged with the connecting rod one 441, thereby driving the overall linkage mechanism 44 to lift the cleaning brush 45 and move it upward, so that the cleaning brush 45 contacts the bottom of the cleaning roller 34.

[0035] At this time, connecting rod three 443 pushes the U-shaped frame 58 to move upward by contacting the L-shaped contact rod 510, and the U-shaped frame 58 pulls the connecting ring 56 to move to the side away from the connecting rod 52 through the hinge rod 57. Under the action of the reset spring 53, the connecting rod 52 moves to the side close to the reciprocating screw rod 41, and the connecting rod 52 pushes the clamping rod 54, so that the clamping rod 54 is clamped into the annular teeth on the connecting gear 51, so that the connecting gear 51 can drive the reciprocating screw rod 41 to rotate through the clamping rod 54 and the connecting rod 52. At this time, the moving block 42 can move back and forth with the linkage mechanism 44 and the cleaning brush 45, and the cleaning brush 45 can clean the cleaning roller 34 back and forth to prevent dirt from remaining on the cleaning roller 34.

[0036] When the slide plate 31 moves upward, the rotating rod 32 drives the fixed plate 511 to move upward together. At this time, under the pushing action of the spring piece 513, the elastic telescopic rod 512 swings and resets, and the elastic telescopic rod 512 gradually resets under its own elastic action, pushing the fixed plate 511 to rotate 180° again, thereby controlling the cleaning roller 34 to reset, so that the cleaning roller 34 can contact with the bottom of the conveyor belt 12 again to achieve cleaning after moving upward and resetting. At the same time, the squeezing roller 59 contacts the U-shaped frame 58, pushing the U-shaped frame 58 to move downward, and the U-shaped frame 58 swings downward through the L-shaped contact rod 510 contacting the connecting rod three 443, thereby controlling the cleaning brush 45 to move downward, and at the same time, the U-shaped frame 58 pushes the connecting ring 56 to move to the side close to the connecting rod 52 through the hinge rod 57, thereby pushing the connecting rod 52 to reset, and the connecting rod 52 can pull the clamping rod 54, so that the clamping rod 54 is no longer stuck on the annular tooth, thereby controlling the reciprocating screw rod 41 to stop rotating.

[0037] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A cargo unloading device for logistics transportation, comprising a belt conveyor device, the belt conveyor device comprising a loading frame (11), a conveyor belt (12) and a servo motor (13), the conveyor belt (12) being rotatably mounted on the inner wall of the loading frame (11), the servo motor (13) being fixed on a side wall of the loading frame (11) away from the conveyor belt (12), the output shaft of the servo motor (13) penetrating a side wall of the loading frame (11) away from the conveyor belt (12), the output shaft of the servo motor (13) being fixedly connected to a driving shaft of the conveyor belt (12), characterized in that: A bracket (6) is fixed to the side wall of the loading frame (11), and a cleaning part (3) for cleaning the conveyor belt (12) and a driven part (2) for controlling the cleaning part (3) to move up and down are arranged on the bracket (6); The cleaning portion (3) comprises a slide plate (31), wherein the slide plate (31) penetrates a side wall of the bracket (6) close to the conveyor belt (12), the slide plate (31) and the bracket (6) are penetrated by a rotating rod (32) and are rotatably connected to the rotating rod (32), a disc (33) is fixed to one end of the rotating rod (32) away from the bracket (6), and a cleaning roller (34) is fixed to one side of the disc (33) away from the bracket (6).

2. The unloading device for logistics transportation according to claim 1, characterized in that: The driven part (2) comprises: a transmission roller (21), the transmission roller (21) is transmission-connected to the conveyor belt (12), the transmission roller (21) passes through the bracket (6) and is rotationally connected to the bracket (6), a driving gear (22) is fixed on the side of the transmission roller (21) close to the bracket (6), the driving gear (22) is meshed with a driven gear (23), the driven gear (23) and the bracket (6) are passed through by a rotating shaft (24), the rotating shaft (24) is fixedly connected to the driven gear (23), and the The rotating shaft (24) is rotatably connected to the bracket (6); the rotating shaft (24) and the transmission roller (21) are both penetrated by and fixed with a half gear (25); two groups of the half gears (25) are provided, one group of the half gears (25) is fixed to the rotating shaft (24), and the other group of the half gears (25) is fixed to the transmission roller (21); a large gear (26) is rotatably mounted on one side of the slide plate (31) close to the conveyor belt (12); and a transverse groove (27) is provided on one side of the slide plate (31) close to the large gear (26).

3. The unloading device for logistics transportation according to claim 2 is characterized in that: A spiral groove (28) is provided on a side of the large gear (26) close to the slide plate (31); a slider (29) is slidably mounted on the inner side of the transverse groove (27); one end of the slider (29) close to the large gear (26) is inserted into the inner side of the spiral groove (28); a vertical rod (210) penetrates the top of the slide plate (31) and is slidably connected to the vertical rod (210); a support rod (211) is hingedly connected to a side of the vertical rod (210) away from the slider (29); one end of the support rod (211) away from the slider (29) is hingedly connected to a fixed block (212); and the fixed block (212) is fixed to a side of the bracket (6) close to the slide plate (31).

4. The unloading device for logistics transportation according to claim 3 is characterized in that: The bracket (6) is also provided with an auxiliary part (4) for cleaning the cleaning roller (34) and a resistance part (5) for controlling the auxiliary part (4); the auxiliary part (4) comprises a reciprocating screw (41); the reciprocating screw (41) is rotatably mounted on a side wall of the bracket (6) close to the conveyor belt (12); the reciprocating screw (41) penetrates a moving block (42) and is threadedly connected to the moving block (42); the moving block (42) is penetrated by a guide rod (43) and is slidably connected to the guide rod (43); the guide rod (43) is fixed on a side wall of the bracket (6) close to the reciprocating screw (41); the top of the moving block (42) is connected to a cleaning brush (45) through a linkage mechanism (44).

5. The unloading device for logistics transportation according to claim 4, characterized in that: The linkage mechanism (44) comprises: a connecting rod 1 (441), the bottom of the connecting rod 1 (441) is fixed to the top of the moving block (42), the top of the moving block (42) is hinged with a connecting rod 2 (442), a side of the connecting rod 1 (441) close to the connecting rod 2 (442) is hinged with a connecting rod 3 (443), the top of the connecting rod 2 (442) is hinged with a connecting rod 4 (444), an end of the connecting rod 3 (443) away from the connecting rod 1 (441) is hinged to the bottom of the connecting rod 4 (444), and the connecting rod 4 (444) is hinged to the bottom of the connecting rod 4 (444). ) is hinged with a connecting rod five (445) at one end away from the connecting rod two (442), and the top of the connecting rod five (445) is fixed to the cleaning brush (45), and a connecting rod six (446) is hinged on the side of the connecting rod five (445) close to the connecting rod four (444), and the end of the connecting rod six (446) away from the connecting rod five (445) is hinged to the top of the connecting rod three (443), and a torsion spring (447) is fixed to the bottom of the connecting rod three (443), and the end of the torsion spring (447) away from the connecting rod three (443) is fixed to the connecting rod one (441).

6. The unloading device for logistics transportation according to claim 4, characterized in that: The abutment portion (5) comprises a connecting gear (51), the connecting gear (51) being rotatably mounted on the inner wall of the bracket (6), the connecting gear (51) being meshed with the driven gear (23), the connecting gear (51) being provided with an annular tooth on the side away from the conveyor belt (12), the connecting gear (51) and the reciprocating screw rod (41) being penetrated by a connecting rod (52), the reciprocating screw rod (41) being slidably connected to the connecting rod (52), a return spring (53) being fixed on the inner wall of the reciprocating screw rod (41), the end of the return spring (53) away from the reciprocating screw rod (41) being fixed to the connecting rod (52), and the end of the connecting rod (52) close to the bracket (6) being hinged with a clamping rod (54).

7. The unloading device for logistics transportation according to claim 6, characterized in that: One end of the clamping rod (54) away from the connecting rod (52) contacts the connecting gear (51); a circular ring (55) is rotatably mounted on the surface of the reciprocating screw rod (41); a connecting ring (56) is slidably mounted on the surface of the circular ring (55); a hinged rod (57) is hinged on the surface of the connecting ring (56); one end of the hinged rod (57) away from the connecting ring (56) is hinged to the bottom of a U-shaped frame (58); the U-shaped frame (58) is slidably mounted on a side wall of the bracket (6) close to the conveyor belt (12); and a squeezing roller (59) is fixed on the side of the disc (33) away from the cleaning roller (34).

8. The unloading device for logistics transportation according to claim 7, characterized in that: An L-shaped abutment rod (510) is fixed to the bottom of the U-shaped frame (58), and the L-shaped abutment rod (510) contacts the top of the connecting rod three (443). A fixed disk (511) is fixed to the end of the rotating rod (32) away from the disk (33). An elastic telescopic rod (512) is hinged to the side of the fixed disk (511) away from the rotating rod (32). An end of the elastic telescopic rod (512) away from the fixed disk (511) is hinged to the inner wall of the bracket (6). A spring sheet (513) is fixed to the inner wall of the bracket (6), and an end of the spring sheet (513) away from the bracket (6) is fixed to the elastic telescopic rod (512).

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