Deflection drive device, deflection sorting device and logistics sorting system

Abstract

The present invention discloses a deflection drive device, a deflection sorting device, and a logistics sorting system. The deflection drive device comprises at least two parallel driven racks, multiple driven racks connected as a whole and capable of linear translation as a whole. Each driven rack meshes with a set of driven gears whose axes are parallel and perpendicular to their extension direction. The driven racks form a drive device that drives the translation of the entire device. This solution uses a gear and rack transmission instead of a synchronous belt and rotating pulley structure, eliminating the need for multiple tensioning pulleys and resulting in a simpler structure and easier assembly. Furthermore, the rack and gear transmission structure provides a more stable connection and prevents slippage. Furthermore, the racks have a longer service life than synchronous belts, making them more reliable and ensuring effective deflection.

Description

Technical Field

[0001] The present invention relates to the field of logistics equipment, in particular to a deflection drive device, a deflection sorting device and a logistics sorting system. Background Art

[0002] The main cargo reversing methods in modern automated intelligent sorting systems include swing arm type, flip plate type, turntable type, push head type, slider type, deflection type, etc.

[0003] Deflection belt sorting, such as the belt sorting disclosed in application number 201910207235.0, involves installing two belt sorting units on a deflection seat. While this structure helps reduce the number of deflection seats, it requires a synchronous belt to drive the rotating pulley on each deflection seat. To ensure belt tension, multiple tensioning pulleys are required, increasing the complexity of the structure, requiring multiple assembly processes, and making the layout of the synchronous belt difficult. Furthermore, the use of synchronous belts for drive can lead to belt slippage and is relatively more prone to damage and breakage, resulting in a shorter service life and poor stability.

[0004] In addition, relatively speaking, the size of the rotating pulley on each deflection seat needs to be made larger, which is not conducive to reducing the dead weight.

[0005] The belt conveyor is driven by a circular belt connecting the transmission shaft and the power shaft of the belt conveyor. However, since the power shaft is fixed to the deflection seat and rotates with the deflection seat, the circular belt needs to be twisted and deformed after the roller is deflected. After the circular belt is twisted, it will not be able to continue to transmit torque. This will cause the roller to be unable to continue to be driven by the circular belt to rotate after rotating with the deflection seat, and it will be impossible to transport items. This design is obviously unreasonable. Summary of the Invention

[0006] The purpose of the present invention is to solve the above-mentioned problems existing in the prior art and to provide a deflection drive device, a deflection sorting device and a logistics sorting system.

[0007] The purpose of the present invention is achieved through the following technical solutions:

[0008] The deflection drive device includes at least two parallel driven racks, and the multiple driven racks are connected as a whole and can translate linearly as a whole. Each driven rack is engaged with a set of driven gears whose axes are parallel to and perpendicular to their extension directions. The driven racks form a whole connection that drives the translation of the driving device.

[0009] Preferably, in the deflection drive device, one of the driven racks is directly or indirectly connected to a gear that drives it to translate, and the axis of the gear is parallel to the axis of the driven gear and is connected to a rotational power source that drives it to rotate around its axis.

[0010] Preferably, in the deflection drive device, the gear is engaged with a rack, the rack is parallel to the driven rack and is connected to all the driven racks into one through a connecting plate perpendicular to the rack.

[0011] Preferably, in the deflection drive device,

[0012] When the number of driven racks is odd, the rack corresponds to the driven rack position in the middle position;

[0013] When the number of the driven racks is even, the driven racks are symmetrically arranged on both sides of the rack.

[0014] The deflection sorting device comprises a frame and a group of sorting units rotatably arranged on the frame, and also comprises any of the above-mentioned deflection driving devices to drive all the sorting units to rotate.

[0015] Preferably, in the deflection type sorting device, each sorting unit includes a deflection seat, and at least one roller is horizontally arranged on the deflection seat, and the height of the working surface of the roller is higher than the deflection seat.

[0016] When the number of the rotating roller is 1, it is a motorized roller;

[0017] When the number of the rollers is greater than or equal to 2 and they are parallel, one of the rollers is a motorized roller and can drive the other rollers; or each of the rollers is a motorized roller; or all of the rollers are directly or indirectly friction-driven by drive rollers that are parallel to their axes, driven by a power source and located on the deflection seat; or some of the rollers are motorized rollers, and the others are directly or indirectly friction-driven by drive rollers that are parallel to their axes and driven by a power source.

[0018] Preferably, in the deflection type sorting device, the deflection seat at least includes a rotation axis and a flat plate coaxially arranged thereon, and a wiring channel coaxial with the rotation axis is formed on the flat plate and the rotation axis.

[0019] Preferably, in the deflection type sorting device, the deflection seat is fixed on the upper rotating body of the load-bearing bearing, and the rotation axis of the deflection seat is inserted into the center hole of the load-bearing bearing.

[0020] Preferably, in the deflection type sorting device, when there are two symmetrical rotating rollers, they are driven by a driving roller frictionally connected to them;

[0021] When there are three or four rotating rollers, the driving roller drives the plurality of rotating rollers via two transmission rollers frictionally connected to the driving roller.

[0022] Preferably, in the deflection type sorting device, the driving roller directly drives the rotating roller, and the driving roller is frictionally connected to the rotating roller through a self-adjusting device;

[0023] Or the driving roller drives the rotating roller via a transmission roller, the driving roller is frictionally connected to the transmission roller via a self-adjusting device and / or the transmission roller is frictionally connected to the rotating roller via a self-adjusting device.

[0024] Preferably, in the deflection type sorting device, a buffer roller driven by a driving source is provided on the frame on at least one side to which the sorting unit is to be deflected.

[0025] A logistics sorting system comprises any of the above-mentioned deflection sorting devices, wherein a transfer device is provided on at least one side of the deflection sorting device.

[0026] The advantages of the technical solution of the present invention are mainly reflected in:

[0027] This solution uses a gear and rack transmission method to replace the structure of the synchronous belt and rotating pulley. There is no need to set up multiple tensioning pulleys, the structure is simpler and easier to assemble; at the same time, the transmission structure connection between the rack and the gear is more stable and will not slip. In addition, the service life of the rack is longer than that of the synchronous belt, and it is more reliable, ensuring the effectiveness of the deflection.

[0028] The setting position of the rotating power source of this solution can effectively ensure that its power is evenly applied to each of the driven racks, thereby ensuring the synchronization of movement of each position, avoiding local uneven force causing local jamming and thus affecting the overall structural translation, and improving the smoothness of the deflection drive.

[0029] This solution integrates the power for driving the roller rotation on the deflection seat, effectively avoiding the problem of interference between the deflection seat rotation and the conventional O-belt roller drive structure. In addition, the driving method can be flexibly adjusted according to the number of different rollers. The driving method is simple, easy to implement, flexible in application and has good stability.

[0030] This solution can effectively reduce the number of deflection seats, simplify the overall structure, and reduce the weight of the equipment by arranging a group of rollers on a deflection seat. At the same time, friction drive is used to drive multiple rollers. The driving method is simple and easy to implement, and there is no interference with the deflection of the rollers, so the stability is good.

[0031] The arrangement of multiple sorting units in this solution can minimize the gaps between the conveying surfaces. At the same time, the gap areas are filled by universal balls or universal wheels, which can greatly reduce the probability of material jamming and ensure the effectiveness of sorting.

[0032] Each row of sorting units in this solution is located on a carrier plate, which can effectively disperse the gravity of all the sorting units, reduce the load on a single carrier plate, avoid the risk of carrier plate deformation, and improve safety.

[0033] The deflection seat of this solution is formed with a wiring channel, which creates favorable conditions for the wiring of the electric roller, reduces the difficulty of assembly, avoids line leakage, reduces the interference of the deflection seat deflection on the line, and improves the line connection safety and overall aesthetics.

[0034] The rotating structure of the deflection seat of this solution can effectively protect the bearing and reduce the risk of bearing damage.

[0035] The rollers of this solution can be driven in different ways according to different quantity requirements. The structure is flexible and only one power source is needed to effectively drive all the rollers.

[0036] The driving roller and transmission roller of this solution adopt a self-adjusting structure to effectively ensure the stability of contact between different rollers, thereby ensuring the reliability of transmission between the rollers and improving effective transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a front view of the sorting device of the present invention (part of the frame structure is hidden in the figure);

[0038] Figure 2 is a cross-sectional view of a sorting device of the present invention;

[0039] Figure 3 is a top view of the sorting device of the present invention;

[0040] Figure 4 is a bottom view of the sorting device of the present invention;

[0041] Figure 5 is a schematic diagram of a sorting unit of a sorting device of the present invention;

[0042] Figure 6 yes Figure 2 Enlarged view of area A in the middle;

[0043] Figure 7 It is a cross-sectional view of a deflection seat of a sorting device of the present invention having only one roller;

[0044] Figure 8 It is a top view of a deflection seat of a sorting device of the present invention having only one roller;

[0045] Figure 9 is a top view of a sorting unit of the sorting device of the present invention;

[0046] Figure 10It is a schematic diagram of the driving wheel of the present invention being arranged on the self-adjusting device;

[0047] Figure 11 This is a schematic diagram of the present invention in which the driving wheel and the transmission wheel are both arranged on the self-adjusting device;

[0048] Figure 12 is a top view of the deflection drive device of the present invention;

[0049] Figure 13 is a front view of the deflection drive device of the present invention;

[0050] Figure 14 is a front view of a second embodiment of the deflection drive device of the present invention;

[0051] Figure 15 FIG. 1 is a top view of a second embodiment of a deflection drive device according to the present invention. DETAILED DESCRIPTION

[0052] The objects, advantages, and features of the present invention are illustrated and explained through the following non-limiting description of preferred embodiments. These embodiments are merely typical examples of the application of the technical solutions of the present invention, and any technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by the present invention.

[0053] In the description of the scheme, it should be noted that the terms "center", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. Moreover, in the description of the scheme, with the operator as a reference, the direction close to the operator is the proximal end, and the direction away from the operator is the distal end.

[0054] The deflection type sorting device disclosed by the present invention is described below with reference to the accompanying drawings. Figure 1 , Attachment Figure 2 As shown, it includes a frame 1000, and the frame 1000 includes support legs 1100, a fence 1200 and a top plate 1300. There are four support legs 1100 and they are distributed in a quadrilateral. Of course, the number of the support legs 1100 can also be more.

[0055] As attached Figure 1As shown, each support leg 1100 may include a column 1110 and a foot 1120. The column 1110 is height-adjustably mounted on the foot 1120. Specifically, the foot 1120 is formed with longitudinally distributed waist-shaped holes 1121. The column 1110 is formed with connecting holes (not shown) corresponding to the waist-shaped holes 1121. Bolts 1130 are passed through the waist-shaped holes 1121 and the connecting holes, and then connected with nuts to connect the foot 1120 to the column 1110, thereby securing them. The height of the column 1110 can be adjusted by adjusting the position of the connecting holes relative to the waist-shaped holes. Of course, in other embodiments, the connecting holes on the column 1110 may also be screw holes, with the bolts being threaded into the screw holes to connect the column and foot 1120.

[0056] As attached Figure 1 As shown, the enclosure 1200 is a square sleeve as a whole, which is mounted on the four legs 1100. The top plate 1300 is square and is fixed on the top of the enclosure 1200 and covers the upper end opening of the enclosure 1200. Figure 3 As shown, a group of avoidance holes 1310 are formed on the top plate 1300 for installing the sorting unit 2000 , and the distribution of the avoidance holes 1310 is designed according to the distribution of the sorting unit 2000 .

[0057] As attached Figure 1 , Attachment Figure 2 As shown, each of the sorting units 2000 is structured to transport items thereon and is capable of rotating about the longitudinal axis X of its deflection base 100. Each sorting unit 2000 is connected to a deflection drive device 3000 that drives its rotation about the longitudinal axis X. During operation, items passing through the sorting unit 2000 are conveyed in a certain direction. When the sorting unit 2000 is aligned, the items can continue to move in their initial direction of movement. When the sorting unit 2000 is deflected, the items passing through the sorting unit 2000 change their direction of movement to the direction to which the sorting unit 2000 is deflected.

[0058] In order to effectively realize the redirection of items, such as Figure 3 As shown, the sorting units 2000 are distributed in multiple rows or columns. Specifically, they are distributed in five rows. The number of sorting units 2200 in each even row is the same and one less than the number of sorting units 2100 in each odd row, that is, each odd row has five sorting units 2100, and each even row has four sorting units 2200.

[0059] In addition, as attached Figure 3As shown, to minimize the gaps between the sorting units 2000, ensuring sorting stability and preventing jams, the sorting units 2100 and 2200 in two adjacent rows are staggered and positioned closely together. The sorting units 2100 in odd-numbered rows correspond one to one, and the sorting units 2200 in even-numbered rows correspond one to one. That is, except for the sorting units 2100 at the ends of each odd-numbered row, each of the other sorting units is located between the two sorting units in its adjacent row, and the rotation axes of the three sorting units form an equilateral triangle.

[0060] At this time, as attached Figure 3 As shown, a certain gap will be formed at both ends of the even-row sorting units 2200, which increases the risk of jamming. Therefore, in a preferred embodiment, a group of supporting universal wheels or universal balls 4000 are respectively provided at both ends of each even-row sorting unit 2200, preferably a group of bull's eye universal balls, whose tops are flush with the conveying surface of the sorting unit 2200.

[0061] Typically, all the sorting units 2000 are rotatably mounted on a plate having an area similar to that of the enclosure 1200. However, due to the large weight of the sorting units 2000, when items pass over them, the plate bears an excessively large load, which can easily lead to plate deformation in long-term use, especially the plate becoming concave in the middle, thus affecting the position accuracy of the sorting units 2000. In a preferred embodiment, as shown in the attached figure, Figure 4 As shown, each row of sorting units 2000 is rotatably arranged on a carrier plate 1400 on the frame 1000, and five rows of sorting units 200 are distributed on five carrier plates 1400, and both ends of each carrier plate 1400 are fixed on the panels opposite to the enclosure 1200.

[0062] As attached Figure 5 , Attachment Figure 6 As shown, each sorting unit 2000 includes a deflection seat 100, which is rotatably arranged on the carrier plate 1400. It is mainly used to provide installation space and support for the structure thereon, and includes a rotation shaft 110. The axis of the rotation shaft 110 is the longitudinal axis X of the deflection seat 100, which is perpendicular to the carrier plate 1400. It is fixed in the inner hole of the bearing 1500 on the carrier plate 1400, and the axis of the bearing 1500 is perpendicular to the carrier plate 1400, so that the deflection seat 100 can rotate relative to the carrier plate 1400.

[0063] In the above structure, since the deflection seat 100 and the structure thereon have a certain weight, and this weight will be applied to the bearing that enables the deflection seat 100 to rotate (the bearing with the inner and outer rings rotating relative to each other), it is easy to cause damage to the bearing. Figure 6As shown, the bearing 1500 is fixed within a sleeve 1610 of a bearing seat 1600. The sleeve 1610 vertically extends through the carrier plate 1400 and is provided with a connecting plate 1620 on its outer periphery. The connecting plate 1620 is connected to the carrier plate 1400. A load-bearing bearing 1700 is also provided on the top of the sleeve 1610. The deflection seat 100 is disposed on the upper rotating body 1710 of the load-bearing bearing 1700. With this structure, the gravity of the deflection seat 100 and the structure above it is mainly transmitted to the carrier plate 1400 by the bearing seat 1600, while the bearing 1500 no longer needs to bear gravity or the gravity it bears is greatly reduced, thereby protecting the bearing 1500.

[0064] However, in other embodiments, the bearing 1500 is not necessary. Figure 7 As shown, the deflection seat 100 can be directly coaxially fixed on the load-bearing bearing 1700, and its rotation axis 110 passes through the load-bearing bearing 1700. The load-bearing bearing 1700 is fixed on the bearing seat 1800 located on the carrier plate, and a mounting groove for mounting the load-bearing bearing 1700 is formed on the bearing seat 1800, which is coaxial with the load-bearing bearing 1700.

[0065] As attached Figure 5 As shown, a flat plate 120 is coaxially arranged on the rotating shaft 110. The flat plate 120 is circular or square, and of course it can also be of other feasible shapes. A square is preferably taken as an example, and pillars 130 are provided at the four vertex positions. A mounting plate 140 is provided on the pillar 130, and the outer contour of the mounting plate 140 is approximately circular. A group of rollers 200 with parallel axes and equal heights are flatly arranged on the mounting plate 140. The height of the conveying surface 300 formed by the working surfaces of a group of the rollers 200 is slightly higher than the top surface of the deflection seat 100 (i.e., the upper surface of the covering disc 150 described below) and the top plate 1300. The rollers 200 can be rotatably arranged on the mounting plate 140 as a whole, or the shafts at both ends of the rollers 200 can be fixed on the mounting plate 140, and the rollers rotate relative to the shaft. At the same time, a covering circular plate 150 is provided on the mounting plate 140 , and the top surface height of the covering circular plate 150 is equivalent to the top surface height of the top plate 1300 . At the same time, a rectangular hole 131 for installing each of the rollers 200 is formed on the covering circular plate 150 .

[0066] Of course, in another embodiment, the mounting plate 140 may not be provided on the flat plate 120, and the roller may not be provided on the mounting plate 140. The roller 200 may be mounted on the channel steel on the flat plate 120. At this time, the roller body of the roller 200 may rotate relative to its axis fixed on the channel steel 180, and the covering circular plate 150 may be directly provided on the pillar 130.

[0067] During operation, the conveyance of articles on the rollers 200 can be achieved by rotating in the same direction. When the rollers 200 rotate horizontally, the articles passing thereon can be diverted and sorted.

[0068] The number and size of the rollers 200 on each deflection seat 100 can be designed according to different needs. For example, when multiple rollers are installed on a deflection seat 100, the rollers 200 can be two relatively short and symmetrical rollers; or one long roller and two short rollers located in the middle of its two sides; or two symmetrical long rollers 210 and two short rollers 220 located in the middle of its two sides; of course, there can be more short and long rollers. Alternatively, when two long rollers are installed on the mounting plate 140, there will be a certain amount of space on both sides of the long rollers. Universal balls can be installed in this space to fill the gap.

[0069] In other feasible embodiments, as shown in the attached Figure 8 As shown, each deflection seat 100 can also be equipped with only one roller 200. In this case, the size of the entire deflection seat 100 can be made as small as possible, and the structure can be simplified. That is, the above-mentioned structure without the mounting plate 140 can be used, and the roller can be directly installed using channel steel. In addition, if two short rollers 200 are installed on each deflection seat, this simplified deflection seat 100 can also be used. However, as the structure of the deflection seat 100 is simplified and the size is reduced, the number of the sorting units 2000 in the deflection sorting device can be greater, for example, the attached Figure 8 As shown, the sorting units 2000 are arranged in 7 rows and 7 columns. At this time, two rows of the sorting units 2000 can also be placed on one carrier plate 1400.

[0070] The better way is as follows Figure 9 As shown, each mounting plate 140 is provided with two equal and symmetrical long rollers 210 and two equal and symmetrical short rollers 220 on both sides of the long roller 210. The two short rollers 220 are located in the middle area of ​​the long stick 210, and the four rotating rollers are arranged at equal intervals.

[0071] The roller 200 can be driven in various feasible ways. For example, when there is one roller, it is preferably an electric roller. In this case, the structure of the deflection seat can adopt a simplified structure, that is, only two channel steels located at both ends of the roller for mounting the roller and a covering circular plate fixed on the channel steel and the pillar are required to be provided on the flat plate.

[0072] When the number of rollers 200 is greater than or equal to two, in one embodiment, one of the rollers 200 is a motorized roller, and the other rollers 200 can be mounted on a mounting plate. The motorized roller is connected via a transmission mechanism and drives the other rollers to rotate synchronously. Specifically, the motorized roller can rotate the other rollers via an existing transmission structure consisting of a synchronous belt and synchronous wheel, or a sprocket and chain. In this case, the multiple rollers 200 have the same length and are flush at both ends. The specific structure of the motorized rollers is known in the art and is not a key feature of this solution, so it will not be described in detail here.

[0073] In another embodiment, each of the rotating rollers 200 is a motorized roller.

[0074] In another embodiment, some of the rollers 200 are motorized rollers, while the remaining rollers 200 are directly or indirectly driven by drive rollers 400 that are parallel to their axes and driven by a power source. For example, when there are three rollers 200, two rollers 200 can be a set and rotatably mounted on the mounting plate, and they are directly or indirectly driven by one drive roller 400; the other roller 200 can be a motorized roller.

[0075] In a feasible embodiment, as shown in the attached Figure 5 As shown, all the rollers 200 are mounted on the mounting plate and driven directly or indirectly by a drive roller 400 that is parallel to the drive roller's axis and driven by a power source. In direct drive, the surface of the drive roller 400 contacts the surface of the rollers 200. As the drive roller 400 rotates, the rollers 200 rotate synchronously with it due to friction. In indirect drive, the drive roller 400 drives the rollers 200 via a transmission roller 500, to which it is frictionally connected.

[0076] For example, when there are two rotating rollers 200 , the driving roller 400 is located between the two rotating rollers 200 and is in frictional contact with both rotating rollers 200 .

[0077] As attached Figure 5 As shown, when there are three or four rollers 200, two adjacent rollers 200 can form a group, and the remaining one or two rollers form another group. One group of rollers 200 is in frictional contact with a transmission roller 500, and both transmission rollers 500 are in frictional contact with the drive roller 200. When there are four rollers 200, the rollers 200, transmission rollers 500, and drive roller 400 are distributed in an inverted triangle, so that multiple rollers 200 can be driven by a single power source.

[0078] As attached Figure 5 As shown, the driving roller 400 and the transmission roller 500 are both mounted on the support seat 160 or the channel steel on the flat plate 120 .

[0079] Since the rotating roller 200 and the transmission roller 500 as well as the transmission roller 500 and the driving roller 400 need to continuously rub against each other, after a certain period of use, the contact stability between them will be relatively reduced due to friction loss, affecting the reliability of the drive.

[0080] Therefore, in a more preferred embodiment, it is necessary to enable a stable friction connection to be formed between them, such as the attached Figure 10 As shown, when the driving roller 400 directly drives the rotating roller 200, the driving roller 400 is frictionally connected to the rotating roller 200 via the self-adjusting device 600. Specifically, the driving roller 400 is disposed at both ends on a lifting seat 610 on the flat plate 120. The lifting seat 610 is slidably mounted on two guide rails 620 located on either side thereof and perpendicular to the flat plate. Furthermore, a spring 630 is normally compressed at the bottom of the lifting seat 610. The reaction force of the spring 630 provides a lifting force to the lifting seat 610, enabling the driving roller 400 thereon to maintain contact with the rotating roller 200.

[0081] When the driving roller 400 drives the rotating roller 200 through the transmission roller 500, the driving roller 400 and the transmission roller 500 are in self-adjusting friction connection and / or the transmission roller 500 and the rotating roller are in self-adjusting friction connection. Figure 11 As shown, the driving roller 400 can achieve continuous and effective contact with the transmission roller 500 by using an adjustment device with the same structure as the self-adjusting device 600. At the same time, the transmission roller 500 also uses an adjustment device with the same structure as the self-adjusting device 600 to achieve a self-adjusting friction connection with the rotating roller 200.

[0082] Furthermore, the power source for driving the drive roller 400 can be integrated within the drive roller 400 or located externally thereto. For example, if the drive roller 400 is a motorized roller, the power source is integrated within the drive roller 400. When the drive roller 400 is driven by an external power source, both ends of the drive roller 400 are rotatably mounted on a support base, and one end of the drive roller 400 is connected to a motor (not shown) located on the deflection base 100. The motor can be a reduction motor with a reduction mechanism, or a conventional motor connected to the drive roller 400 via a gear transmission or other known transmission mechanism.

[0083] No matter the roller is an electric roller or the driving roller is an electric roller, they all need to be powered by the line 700 and communicate with the host computer. Since the roller 200 and the driving roller 400 need to rotate with the deflection seat 100, the setting of the line 700 will inevitably be interfered by the deflection action. Therefore, in order to reduce the interference, as shown in the attached figure, Figure 7As shown, a wiring channel 170 coaxial with the rotating shaft 110 and the flat plate 120 is formed. The line can pass through the wiring channel 170 from the bottom of the rotating shaft and pass through the flat plate 120 to be connected to the roller 200 or the driving roller 400 on the deflection seat 100. In this way, the rotation of the deflection seat will no longer interfere with the line 700, thereby ensuring the stability of the wiring.

[0084] Each of the sorting units 2000 can be driven by an independent deflection drive device 3000. For example, the rotation shaft 110 of the deflection base 100 of each sorting unit 2000 is connected to a motor. However, this approach is obviously not conducive to reducing component costs and energy consumption. Therefore, in a more preferred approach, multiple sorting units are driven by a single deflection drive device 3000. For example, the deflection structure disclosed in the applicant's application No. 201910265828.2.

[0085] More specifically, the five rows of sorting units 2000 are driven by two deflection drive devices 3000, one deflection drive device 3000 drives two rows of sorting units, and the other deflection drive device 3000 drives three rows of sorting units.

[0086] As attached Figure 12 , Attachment Figure 13 As shown, the deflection drive device 3000 that drives two rows of sorting units includes a fixed motor 3100, the motor shaft of the motor 3100 is perpendicular to the conveying surface 300, the motor shaft of the motor 3100 is fixedly connected to one end of the driving arm 3200, and the other end of the driving arm 3200 is pivotally connected to the middle of a transmission plate 3300, and a strip board 3400 perpendicular and parallel to the transmission plate 3300 is fixed at each end. The two strip boards 3400 extend in the horizontal direction and are connected by a connecting rod 3500 perpendicular to them, so that the transmission plate 3300, the strip board 3400 and the connecting rod 3500 form a transmission frame with a fixed shape. The two strips 3400 are pivotally connected to the flat plate 120 of the deflection seat of a row of sorting units 2000. The shaft 3600 connecting the strips 3400 and the flat plate 120 is located near a side edge of the flat plate 120. The strips 3400 are formed with holes 3410 corresponding to each shaft 3600. During operation, the motor drives the drive arm 320 to rotate about the motor shaft, thereby driving the transmission frame composed of the transmission plate, strips 3400, and connecting rods 3500 to rotate as a whole without deformation. The strips 3400 then drive the connected sorting units 2000 to rotate about the axis of the rotation shaft to achieve deflection.

[0087] The overall structure and working principle of the deflection drive device 3000 that drives three rows of sorting units 2000 are similar to the overall structure of the deflection drive device 3000 that drives two rows of sorting units 200, and the principle is the same. The difference is that: there are three parallel strips 3400, and two adjacent strips are connected to form an integral frame by a connecting rod, and each strip 3400 is pivotally connected to a row of the sorting units 2000.

[0088] Or in another embodiment, as shown in the attached Figure 14 , Attachment Figure 15 As shown, the deflection drive device 3000 can drive the deflection of the entire sorting device 2000 through one power source.

[0089] Specifically, the deflection drive device 3000 includes a fixed drive motor 3001, the motor shaft of the drive motor 3001 is perpendicular to the conveying surface 300, the motor shaft of the drive motor 3001 is coaxially connected to a gear 3002, the gear 3002 is meshed with a rack 3003, the rack 3003 is connected to at least one connecting plate 3004 perpendicular thereto, preferably two connecting plates 3004, the two connecting plates 3004 are connected to a set of parallel to the rack 3003. The driven racks 3005 are arranged with equal spacing, and there is a height difference between the driven racks 3005 and the racks 3003. Each of the driven racks 3005 is slidably set on a guide rail 3006 parallel to them through a group of sliders 3008. The guide rail 3006 is fixed to the bottom of the carrier plate 1400. Each of the driven racks 3005 is engaged with a row of driven gears 3007. Each of the driven gears 3007 is coaxially fixed on the rotation shaft 110 of the deflection seat 100.

[0090] Of course, in other embodiments, the rack 3003 is not necessary, and the gear 3002 can directly engage with one of the multiple driven racks 3005.

[0091] Alternatively, in another embodiment, the plurality of driven racks may be driven not by the driving device formed by the motor 3001, the gear 3003 and the rack 3003, but by a device capable of generating linear movement to drive the entirety of the plurality of driven racks. For example, the driving device may be an air cylinder, an oil cylinder or a linear motor, etc., and the moving direction of their movable parts is parallel to the extension direction of the driven racks.

[0092] Furthermore, when the number of driven racks 3005 is odd, the rack 3003 corresponds to the middle driven rack 3005. When the number of driven racks 3005 is even, the driven racks 3005 are symmetrically arranged on both sides of the rack 3003, i.e., the rack 3003 is always located in the middle of the multiple driven racks. Furthermore, when the deflection seat 100 is in the straight position, the straight-line distances from the ends of the rack 3003 to the ends of the driven rack 3005 are equal, and the gear 3002 is located in the middle of the rack 3003.

[0093] During operation, the drive motor 3001 drives the gear 3002 to rotate, and the gear 3002 drives the rack 3003 and the driven rack 3005 to move back and forth along their extension direction, thereby driving the driven gear 3006 engaged with them to rotate, and then driving the deflection seat 100 connected to each driven gear 3006 to rotate.

[0094] This solution further discloses a logistics sorting system (not shown in the figure), including the deflection sorting device of the above embodiment, wherein the deflection sorting device is multiple and arranged at intervals, and further includes a conveyor line connected between two of the deflection sorting devices, such as a belt conveyor, a roller conveyor, etc. At least one side of each of the deflection sorting devices is provided with a transfer device, which can be a sorting grid or other conveyor line, etc., and is specifically designed according to the needs of different application scenarios.

[0095] Taking the transfer device as a sorting grid as an example, sorting grids are provided on both sides of each deflection device. In order to reduce the impact force of materials entering the sorting grid during deflection sorting, buffer rollers (not shown in the figure) driven by a driving source are provided on both sides of the frame 1000. The buffer rollers are located on the side of the frame 1000 that is connected to the sorting grid, and the top height of the buffer rollers is equivalent to the top height of the roller 200. The buffer rollers are preferably electric rollers and the roller surface has a rubber layer. When working, the rotation speed can be lower than the rotation speed of the roller 200 of the sorting unit, thereby effectively reducing the impact force of the translation of the items and improving the safety of item sorting.

[0096] There are many implementation methods of the present invention, and all technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A deflection sorting device comprising a frame and a set of sorting units rotatably arranged on the frame, characterized in that: It also includes a deflection drive device to drive all of the sorting units to rotate; The deflection drive device includes at least two parallel driven racks, the plurality of driven racks being connected as a whole and capable of linear translation as a whole, each driven rack being meshed with a set of driven gears having axes parallel to and perpendicular to the axes of the driven racks, the driven racks forming a driving device for driving the translation thereof as a whole; Each sorting unit includes a deflection seat, on which at least one roller is horizontally arranged, and the height of the working surface of the roller is higher than that of the deflection seat; the rollers are three or four, and the driving roller drives the multiple rollers through two transmission rollers frictionally connected thereto; The deflection seat includes a rotation shaft, which is rotatably fixed in the inner hole of the bearing on the carrier plate. The bearing is fixed in a sleeve of a bearing seat, the sleeve vertically passes through the carrier plate and is provided with a connecting plate on its outer periphery, the connecting plate is connected to the carrier plate, and a load-bearing bearing is further provided on the top of the sleeve. The deflection seat is provided on the upper rotating body of the load-bearing bearing, and the rotation shaft of the deflection seat is inserted into the center hole of the load-bearing bearing; the deflection seat at least includes a rotation shaft and a flat plate coaxially provided thereon, and a wiring channel coaxial with the rotation shaft is formed on the flat plate and the rotation shaft; The driving roller drives the rotating roller via the transmission roller, the driving roller is frictionally connected to the transmission roller via a self-adjusting device, and the transmission roller is frictionally connected to the rotating roller via a self-adjusting device; There is a certain gap formed at both ends of the even-numbered row sorting units, and a set of supporting universal wheels or universal balls are respectively provided at both ends of each even-numbered row sorting unit; A buffer roller driven by a driving source is provided on the frame at least on one side to which the sorting unit is to be biased; the buffer roller is a motorized roller and has a rubber coating on its roller surface. When in operation, its rotation speed can be lower than the rotation speed of the rotating roller of the sorting unit; The driven rack is directly or indirectly connected to a gear that drives it to translate, and the axis of the gear is parallel to the axis of the driven gear and is connected to a rotating power source that drives it to rotate around its axis; the gear is engaged with a rack, and the rack is parallel to the driven rack and is connected to all the driven racks into one through a connecting plate perpendicular to it; when the number of driven racks is odd, the rack corresponds to the position of the driven rack in the middle position; when the number of driven racks is even, the driven racks are symmetrically arranged on both sides of the rack.

2. Logistics sorting system, characterized by: The deflection sorting device comprises the deflection sorting device according to claim 1, wherein a transfer device is provided on at least one side of the deflection sorting device.

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