Balance wheel units, balance wheel modules and sorting equipment

Abstract

The application provides a balance wheel unit for conveying and sorting goods, comprising a balance wheel and a balance wheel support; the balance wheel is installed on the balance wheel support and can rotate around a first axis to convey goods; the balance wheel unit has a conveying direction and a sorting direction, and the balance wheel is provided with a first transmission part and a second transmission part along the first axis direction. The application sets the first transmission part and the second transmission part on the balance wheel, the first transmission part is used to drive the balance wheel to convey goods at a first speed when the balance wheel unit conveys goods along the conveying direction; the second transmission part is used to drive the balance wheel to convey goods at a second speed when the balance wheel unit conveys goods along the sorting direction, and the second speed is greater than the first speed, so that the transmission efficiency of goods during sorting is improved, and the situation that a straight-ahead conveying goods chases a previous sorted goods can be effectively avoided, and the stability of goods during conveying is provided.

Description

Technical Field

[0001] The present application relates to the field of logistics transmission technology, and specifically to a balance wheel unit, a balance wheel module and a sorting device. Background Art

[0002] With the rapid development of the logistics industry, the use of automated sorting equipment is becoming increasingly widespread. Currently, there are many types of automated sorting equipment, and balance wheel sorting equipment is one of them. Balance wheel sorting equipment uses the rotation and swing of a balance wheel to transport and sort goods.

[0003] When sorting goods, the pendulum wheel sorting device swings in a preset direction to change the direction of delivery, thereby sorting the goods to the preset slots. Existing pendulum wheel sorting devices reduce the speed of goods delivery during sorting, affecting transmission efficiency. Furthermore, when the distance between goods is relatively small, it is easy for the following straight-moving goods to catch up with the previous sorted goods, causing collisions during delivery. To protect goods from damage, it is necessary to avoid this phenomenon of goods catching up. Existing technology generally increases the distance between goods. However, increasing the distance between goods directly reduces the processing efficiency of the sorting equipment and indirectly increases the cost of sorting goods. Summary of the Invention

[0004] The present application provides a balance wheel unit, a balance wheel module and a sorting device to solve the technical problems that the existing balance wheel sorting device has poor transmission efficiency and is prone to collision of goods during sorting.

[0005] In a first aspect, the present application provides a balance wheel unit for conveying and sorting goods, comprising a balance wheel and a balance wheel support;

[0006] The balance wheel is mounted on the balance wheel bracket and is capable of rotating about a first axis to transport goods;

[0007] The balance wheel unit has a conveying direction and a sorting direction, and the balance wheel is provided with a first transmission part and a second transmission part along the first axis direction;

[0008] The first transmission part is used to drive the balance wheel to transport the goods at a first speed when the balance wheel unit transports the goods along the transport direction;

[0009] The second transmission part is used to drive the balance wheel to transport the goods at a second speed when the balance wheel unit transports the goods along the sorting direction, and the second speed is greater than the first speed.

[0010] In some embodiments of the present application, the first transmission part and the second transmission part are both annular friction belts and are located on the same spherical surface. The distance from any point on the first transmission part to the first axis is greater than the distance from any point on the second transmission part to the first axis.

[0011] In some embodiments of the present application, the balance wheel is a spherical balance wheel, and a transition area is provided between the first transmission part and the second transmission part. The transition area is used to reduce the friction resistance borne by the balance wheel when the balance wheel unit switches between the conveying direction and the sorting direction.

[0012] In some embodiments of the present application, the transition region is a conical surface or a concave surface.

[0013] In some embodiments of the present application, the sorting direction includes a first direction and a second direction, the first direction and the second direction are respectively arranged on both sides of the conveying direction, the number of the second transmission parts is two, and the two second transmission parts are respectively arranged on both sides of the first transmission part.

[0014] In some embodiments of the present application, the first transmission part and / or the second transmission part are made of elastic friction-resistant material.

[0015] In some embodiments of the present application, the component speed of the second speed in the conveying direction is not lower than the first speed.

[0016] On the other hand, the present application provides a balance wheel module, comprising a plurality of the above-mentioned balance wheel units.

[0017] In some embodiments of the present application, the balance wheel module further includes a frame and a driving unit; each of the balance wheel units is rotatably connected to the frame; and the driving unit is used to drive the balance wheel to rotate around the first axis.

[0018] In some embodiments of the present application, the driving unit includes a driving member and a power source, the power source is used to drive the driving member to rotate, and the driving member can abut against the first transmission part or the second transmission part to drive the balance wheel to rotate around the first axis.

[0019] In some embodiments of the present application, the balance wheel module further includes a tensioning member installed on a frame, and the tensioning member is used to make the driving member abut against the balance wheel to maintain stable contact between the driving member and the balance wheel.

[0020] In some embodiments of the present application, the driving member is a driving roller, and when the first axis is parallel to the rotation axis of the driving member, the horizontal distance between the first axis and the rotation axis of the driving member is less than the sum of the radius of the balance wheel and the rotation radius of the driving member.

[0021] On the other hand, the present application provides a sorting device, including the balance wheel module.

[0022] In some embodiments of the present application, the sorting device includes a swing unit and multiple balance wheel units, and the multiple balance wheel units are arranged in multiple columns along the conveying direction. The swing unit is connected to the balance wheel unit located in the middle column to drive the balance wheel unit connected thereto to swing.

[0023] The present application provides a balance wheel unit comprising a balance wheel and a balance wheel support; the balance wheel is mounted on the balance wheel support and is capable of rotating about a first axis to transport goods; the balance wheel unit has a transport direction and a sorting direction, and the balance wheel is provided with a first transmission portion and a second transmission portion along the first axis; the first transmission portion is used to drive the balance wheel to transport goods at a first speed when the balance wheel unit transports goods in the transport direction; and the second transmission portion is used to drive the balance wheel to transport goods at a second speed when the balance wheel unit transports goods in the sorting direction. The present application provides a first transmission portion and a second transmission portion on the balance wheel, wherein the first transmission portion is used to drive the balance wheel to transport goods at a first speed when the balance wheel unit transports goods in the transport direction; and the second transmission portion is used to drive the balance wheel to transport goods at a second speed when the balance wheel unit transports goods in the sorting direction, the second speed being greater than the first speed, thereby improving the transport efficiency of goods during sorting, effectively preventing straight-moving goods from catching up with previously sorted goods, and providing stability during the transport of goods. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 Schematic diagram of the structure of the balance wheel unit provided in an embodiment of the present application;

[0026] Figure 2 yes Figure 1 Exploded view of the assembly of the balance wheel unit;

[0027] Figure 3 Schematic diagram of the structure of the balance wheel module provided in an embodiment of the present application;

[0028] Figure 4 yes Figure 3 B-direction view in;

[0029] Figure 5 yes Figure 3 Partial exploded view of the middle roller assembly drawing;

[0030] Figure 6 This is a layout diagram of the balance wheel module in the sorting device provided in an embodiment of the present application;

[0031] Figure 7 This is a schematic diagram of the internal structure of the sorting equipment provided in an embodiment of the present application;

[0032] Figure 8 This is a schematic diagram of the external structure of the sorting equipment provided in an embodiment of the present application.

[0033] Reference numerals:

[0034] Balance unit 100; balance wheel 120; first transmission portion 121; transition region 122; second transmission portion 123; second through hole 124; bearing mounting portion 1241; balance wheel bracket 130; mounting bracket 131; second shaft 132; first shaft 133; retaining groove 1331; bearing 140; shaft circlip 150; screw 160;

[0035] Roller 200; Roller body 210; Mounting shaft 220;

[0036] Balance wheel module 600; frame 300; mounting seat 310; annular through hole 311; first mounting hole 312; spring 500; connecting rod mechanism 700; stepping motor 800; housing 900. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0038] The terms "first", "second", and "third" in this application are used to distinguish different objects rather than to describe a specific order. In addition, the terms "include", "have", and any variations thereof are intended to cover non-exclusive inclusions.

[0039] See also Figure 1 and Figure 2 and Figure 6 , Figure 1 is a structural diagram of the balance wheel unit provided in an embodiment of the present application, Figure 2 yes Figure 1 Exploded view of the assembly of the balance wheel unit. Figure 6 This is a layout diagram of the balance wheel module in the sorting equipment provided in an embodiment of the present application.

[0040] A balance wheel unit 100 for conveying and sorting goods includes a balance wheel 120 and a balance wheel bracket 130. The balance wheel 120 is mounted on the balance wheel bracket 130 and is capable of rotating about a first axis to convey goods. The balance wheel unit 100 has a conveying direction F and a sorting direction (f1 or f2). It should be noted that the conveying direction F and the sorting direction (f1 or f2) of the balance wheel unit 100 mean that when the balance wheel unit 100 rotates, it can drive the goods located thereon to move along the conveying direction F or the sorting direction (f1 or f2). The balance wheel 120 is provided with a first transmission portion 121 and a second transmission portion 123 along the first axis. The first transmission portion 121 is used to drive the balance wheel 120 to convey the goods at a first speed when the balance wheel unit 100 conveys the goods along the conveying direction F. The second transmission portion 123 is used to drive the balance wheel 120 to convey the goods at a second speed when the balance wheel unit 100 conveys the goods along the sorting direction f1 (or f2), the second speed being greater than the first speed.

[0041] It should be noted that in the embodiment of the present application, the balance wheel bracket 130 can swing left and right under the action of an external force (described in detail below), thereby driving the balance wheel 120 to swing left and right to achieve cargo sorting. The conveying direction F is the direction of movement of the cargo when the balance wheel 120 is not swinging left and right. The sorting direction (f1 or f2) is different from the conveying direction F. When the cargo needs to be sorted to a preset sorting slot, the balance wheel bracket 130 and the balance wheel 120 are driven to rotate in the preset direction to achieve the conveying of the cargo along the sorting direction (f1 or f2), thereby achieving cargo sorting.

[0042] In the embodiment of the present application, the sorting direction includes a first direction f1 and a second direction f2. The first direction f1 and the second direction f2 are respectively arranged on both sides of the conveying direction F.

[0043] In the embodiment of the present application, unless otherwise specified, the directions of the second speed and the first speed are not considered when comparing them.

[0044] It is understood that the balance wheel 120 conveys goods at a first speed V1 in the conveying direction F, and conveys goods at a second speed V2 in the sorting direction (f1 or f2). Because the second speed V2 is greater than the first speed V1, the sorted goods are accelerated in the sorting direction (f1 or f2), significantly improving sorting efficiency and effectively preventing collisions caused by goods being sorted in front being overtaken by goods moving behind in the conveying direction F.

[0045] Specifically, the balance wheel support 130 includes a first shaft 133. The first shaft 133 passes through the balance wheel 120 (described in detail below), and the balance wheel 120 can rotate about the centerline of the first shaft 133. That is, the first axis is the centerline of the first shaft 133 or the centerline of the balance wheel 120.

[0046] The balance wheel bracket 130 also includes a second shaft 132 and a mounting bracket 131. Furthermore, the mounting bracket 131 has a symmetrical "U"-shaped structure, with a pair of side panels disposed opposite each other at its left and right ends having first through-holes (not shown). The first shaft 133 passes through the first through-holes and is rotatably connected to the mounting bracket 131. In other embodiments of the present application, the mounting bracket 131 may also be shaped like a "Y," which is not specifically limited here.

[0047] Furthermore, the second shaft 132 is connected to the mounting bracket 131 , and the connection mode can be a fixed connection or a detachable connection, which is not specifically limited here.

[0048] Furthermore, the central axis of the second shaft 132 coincides with the symmetry axis of the mounting bracket 131 , which helps to prevent the second shaft 132 and the connection between the second shaft 132 and the mounting bracket 131 from being damaged due to an unbalanced overturning moment.

[0049] In this embodiment of the present application, the first transmission portion 121 and the second transmission portion 123 are friction areas provided on the outer surface of the balance wheel 120. The roller 200 (described in detail below) is used to drive the balance wheel 120 to rotate about a first axis to transport goods. The first transmission portion 121 or the second transmission portion 123 can abut against the roller 200, respectively. The roller 200, through the abutment of the first transmission portion 121 or the second transmission portion 123, drives the balance wheel 120 to rotate about the first axis, thereby moving the goods in a predetermined direction.

[0050] Furthermore, the first transmission part 121 and the second transmission part 123 are both annular friction belts and are located on the same spherical surface. The distance from any point on the first transmission part 121 to the first axis (i.e., the centerline of the first shaft 133) is greater than the distance from any point on the second transmission part 123 to the first axis.

[0051] Furthermore, the balance wheel 120 is a spherical balance wheel.

[0052] In other embodiments, the balance wheel 120 may have other shapes, such as an ellipsoid, with the first transmission portion 121 and the second transmission portion 123 being different regions of the outer surface of the balance wheel 120. As the balance wheel 120 swings leftward or rightward, i.e., as the contact area between the balance wheel 120 and the roller 200 transitions from the first transmission portion 121 to the second transmission portion 123, the linear velocity of the first transmission portion 121 increases, making the second velocity greater than the first velocity. This solution also prevents the preceding and following cargo from catching up, colliding, or tipping over when the cargo conveying direction F switches to the sorting direction f1 (or f2).

[0053] The following is a further explanation using the example of the roller 200 rotating at a constant speed V (the linear speed of the roller 200 surface) and the balance wheel 120 having a radius of R. When the balance wheel unit 100 is in a non-swinging state, the first axis is arranged parallel to the center line of the roller 200. The goods are always in frictional contact with the first transmission part 121 and move along a preset direction under the action of the first transmission part 121. When the first transmission part 121 abuts against the roller 200, the roller 200 drives the first transmission part 121 to rotate, and the rotation speed of the first transmission part 121 is also V (the linear speed of the friction contact part is the same). The first transmission part 121 drives the goods to move along the conveying direction F, and the speed of the goods is V, that is, the first speed is V.

[0054] When the balance wheel unit 100 swings until the balance wheel 120 conveys goods in the sorting direction, the centerline of the first shaft 133 forms an acute angle α with the centerline of the roller 200. The second transmission portion 123 abuts the roller 200, and the linear velocity of the second transmission portion 123 is V. Because the first and second transmission portions 121, 123 rotate coaxially, their angular velocities are equal. However, the rotation radius of the first transmission portion 121 is greater than that of the second transmission portion 123. Therefore, the linear velocity V2 of the first transmission portion 121 is necessarily greater than V. This means that the balance wheel 120 conveys goods in the sorting direction at the second velocity V2, which improves sorting efficiency and provides stability during transport.

[0055] Furthermore, the component of the second speed V2 in the conveying direction F is no less than the first speed V1. When the balance wheel unit 100 swings until the balance wheel 120 conveys goods along the sorting direction, the centerline of the first shaft 133 forms an angle α with the rotation axis of the roller 200. The radius of the spherical balance wheel 120 is R, which means that the distance from the first transmission part 121 and the second transmission part 123 to the center of the sphere is R. At this time, the component of the second speed V2 in the conveying direction F is V2*cosα, which can be used to calculate the component of the second speed V2 in the conveying direction F. This configuration further prevents the situation in which the following straight-moving goods catch up with the previous sorted goods, thereby improving the stability of the goods sorting process.

[0056] Furthermore, a transition region 122 is provided between the first transmission portion 121 and the second transmission portion 123. The transition region 122 is used to reduce the friction resistance borne by the balance wheel 120 when the balance wheel unit 100 switches between the conveying direction F and the sorting direction (f1 or f2).

[0057] One possible approach is that when the balance wheel 120 swings leftward or rightward, the contact area between its outer surface and the roller 200 is directly switched between the first transmission part 121 and the second transmission part 123. That is, the balance wheel 120 does not have frictional contact with the roller 200 during the swinging process, which is beneficial to reducing the frictional resistance borne by the balance wheel 120 and avoiding power loss in the balance wheel 120.

[0058] Furthermore, the distance from any point on the surface of the transition region 122 to the center of the sphere is less than the radius of the sphere.

[0059] Furthermore, the transition region 122 includes a groove. The groove may be an annular groove formed by rotating around the center line of the first shaft 133. The shape of the groove may be V-shaped, rectangular, arc-shaped, etc., which is not specifically limited here.

[0060] Further, if Figure 1 and Figure 2 As shown, the transition area 122 may also be a conical surface with the first axis as the center line.

[0061] Furthermore, the width of the transition region 122 along the first axis is between 0.5R and 0.87R, which is beneficial to improving the swing amplitude and sorting efficiency of the balance wheel 120 and reducing friction resistance during the swing process.

[0062] Furthermore, there are two second transmission parts 123, one on each side of the first transmission part 121, corresponding to the two sorting directions (f1 or f2). This allows the balance wheel 120 to swing both left and right to transport goods, thus increasing its applicability.

[0063] Of course, in some other embodiments, the balance wheel 120 may further include a third transmission part and / or a fourth transmission part, etc.; accordingly, the sorting direction may also include f3, f4, etc., which are not limited here.

[0064] Furthermore, the two second transmission parts 123 are symmetrically arranged on either side of the first transmission part 121. That is, the first transmission part 121 is symmetrical about a plane, and the multiple second transmission parts 123 are also symmetrical about the plane, with the plane of symmetry perpendicular to the first axis 133. The symmetry of the first transmission part 121 and the two second transmission parts 123 about the plane facilitates the processing and manufacturing of the balance wheel 120. It also ensures that the second transmission speed of the balance wheel 120 after swinging leftward is equal to the second transmission speed after swinging rightward.

[0065] In the embodiment of the present application, a second through hole 124 is formed on the balance wheel 120. The first shaft 133 passes through the second through hole 124, and the balance wheel 120 can rotate around the first shaft 133 to transport goods. Threaded holes (not shown in the figure) are provided at the end faces of both ends of the first shaft 133. The two ends of the first shaft 133 are connected to the left and right ends of the mounting bracket 131 by screws 160, which is convenient for the later maintenance and care of the balance wheel unit 100. The center line of the first shaft 133 is perpendicular to the center line of the second shaft 132, which helps to prevent the second shaft 132 and the connection between the second shaft 132 and the mounting bracket 131 from being damaged due to the unbalanced overturning moment. Of course, in some other embodiments, the center line of the first shaft 133 and the center line of the second shaft 132 may not be perpendicular, which is not specifically limited here.

[0066] Furthermore, the second through-hole 124 is a stepped hole, comprising a bearing mounting portion 1241. A bearing 140 is mounted on the bearing mounting portion 1241. The first shaft 133 is a stepped shaft with a larger center and smaller ends, each end of which is provided with a retaining groove 1331. The stepped shaft passes through the stepped hole, with its ends tightly fitting the inner ring of the bearing 140. A shaft retaining ring 150 is mounted on the retaining groove 1331. The shaft retaining ring 150 and the stepped surface of the stepped hole together prevent unnecessary axial displacement of the bearing 140. The balance wheel 120 is connected to the balance wheel support 130 via the bearing 140. This not only reduces resistance to rotation of the balance wheel 120 about the first shaft 133, but also reduces wear on the second through-hole 124 in the balance wheel 120, thereby increasing the service life of the balance wheel 120.

[0067] Furthermore, the first transmission portion 121 and / or the second transmission portion 123 are made of an elastic, friction-resistant material; or the balance wheel 120 is made of an elastic, friction-resistant material; or the main body of the balance wheel 120 is made of another material, and a layer of elastic, friction-resistant material is provided on the outer surface of the balance wheel 120. The provision of the elastic, friction-resistant material not only helps to increase the friction coefficient and frictional force between the balance wheel 120 and the roller 200, but also helps to increase the actual contact area between the balance wheel 120 and the roller 200.

[0068] See also Figure 3 and Figure 4 , Figure 3 is a structural diagram of the balance wheel module provided in an embodiment of the present application, Figure 4 yes Figure 3 B view in the figure.

[0069] The balance wheel module 600 includes a frame 300, a drive unit (not shown) and a plurality of balance wheel units 100; each balance wheel unit 100 is rotatably connected to the frame 300; the drive unit is used to drive the balance wheel 120 to rotate around the first axis 133.

[0070] The driving unit includes a driving member and a first power source, wherein the first power source is used to drive the driving member to rotate. The driving member can abut against the first transmission part 121 or the second transmission part 123 to drive the balance wheel 120 to rotate around the first axis.

[0071] Specifically, the driving member is a roller 200, and the first power source is a motor (not shown in the figure). Of course, it is understood that in other embodiments of the present application, the driving member may also be a roller shaft, a roller wheel, or a belt, and the first power source may also be a common hydraulic cylinder or a pneumatic cylinder, etc., which are not specifically limited here.

[0072] The roller 200 includes a roller body 210 and a mounting shaft 220. The roller body 210 and the mounting shaft 220 are coaxially arranged. The mounting shaft 220 passes through the interior of the roller body 210 and extends a distance from both end surfaces of the roller body 210. The roller body 210 is rotatable relative to the mounting shaft 220. The frame 300 also includes a mounting base 310, which is used to mount the roller 200.

[0073] The mounting base 310 is provided with an annular through-hole 311, and the cross-sectional shape of the mounting shaft 220 matches the shape of the annular through-hole 311. The mounting shaft 220 is inserted into the annular through-hole 311 and is capable of sliding along the length of the annular through-hole 311. The motor drives the roller body 210 to rotate relative to the mounting shaft 220. For example, in one feasible solution, the roller body 210 is fixedly connected to the mounting shaft 220, the mounting shaft 220 is rotatable relative to the annular through-hole 311, and the mounting shaft 220 is connected to the motor via a coupling. The rotation of the motor thereby drives the rotation of the roller body 210.

[0074] See also Figure 4 and Figure 5 , Figure 5 yes Figure 3 A partial exploded view of the middle roller assembly diagram. The balance wheel module 600 also includes a tensioning member mounted on the frame 300. The tensioning member is used to slide the roller 200 up and down along the length of the annular through hole 311, thereby causing the roller body 210 to abut against the balance wheel 120, maintaining stable contact between the roller body 210 and the balance wheel 120. Specifically, the tensioning member is a spring 500.

[0075] The length direction of the annular through hole 311 is perpendicular to the conveying direction F and the centerline of the roller body 210. The mounting seat 310 is provided with a first mounting hole 312, the centerline of which is parallel to the length direction of the annular through hole 311. The depth of the first mounting hole 312 is less than the natural length of the spring 500. The spring 500 is mounted in the first mounting hole 312, with one end of the spring 500 abutting against the mounting shaft 220. The frame 300 is provided with multiple second mounting holes (not shown) along its length, and the second shafts 132 of the multiple balance wheel units 100 are respectively inserted into the multiple second mounting holes. The multiple balance wheel units 100 can swing left and right around the centerline of the corresponding second mounting hole. The installation scheme of the balance wheel unit 100 is as follows: the first transmission part 121 or the second transmission part 123 of the balance wheel 120 abuts against the roller body 210; the top surface of the frame 300 is a plane, and the distance H2 from the center line of the first shaft 133 to the plane is greater than the distance H1 from the center line of the installation shaft 220 to the plane; when the center line of the first shaft 133 is parallel to the center line of the installation shaft 220, the first transmission part 121 abuts against the roller body 210, and the sum of the rotation radius R1 of the first transmission part 121 and the rotation radius R2 of the roller body 210 is greater than the horizontal distance L between the center line of the first shaft 133 and the center line of the installation shaft 220.

[0076] It is understood that the aforementioned installation scheme of the balance wheel unit 100 ensures stable contact between the balance wheel 120 and the roller body 210. For example, when the first transmission portion 121 is severely worn, the spring 500 can cause the roller body 210 to move upward, thereby compensating for the wear of the first transmission portion 121 and ensuring stable contact between the balance wheel 120 and the roller body 210. Furthermore, when the contact area between the balance wheel 120 and the roller body 210 switches from the first transmission portion 121 to the second transmission portion 123, the spring 500 causes the roller body 210 to move upward, allowing the second transmission portion 123 to contact the roller body 200, thereby smoothly conveying goods.

[0077] Furthermore, the multiple balance wheel units 100 are divided into two groups, with the two groups of balance wheel units 100 being disposed on either side of the roller 200. In the embodiment of the present application, the two groups of balance wheel units 100 are symmetrically disposed on either side of the roller 200. Of course, it is understood that the two groups of balance wheel units 100 can also be asymmetrically disposed on either side of the roller 200, without specific limitation herein. The roller 200 simultaneously drives the two groups of balance wheel units 100. When multiple balance wheel modules 600 are combined to form a sorting device, the technical solution of disposing the two groups of balance wheel units 100 on either side of the roller 200 can reduce the center-to-center distance between two adjacent balance wheels 120, thereby reducing the spacing requirements of the sorting device for goods and improving sorting efficiency.

[0078] Furthermore, the balance wheel module 600 includes multiple rollers 200, which are arranged along the length of the balance wheel module 600. Since the rotation speed of each roller 200 can be individually controlled, the configuration of multiple rollers 200 in a balance wheel module 600 allows the balance wheel unit 100 at different positions in the balance wheel module 600 to have different rotation speeds, thereby increasing the applicability of the balance wheel module 600.

[0079] Further, see Figure 6 In this embodiment, the sorting device includes six balance wheel modules 600 , which are spaced apart along the conveying direction F. The sorting device includes 12 columns of balance wheel unit groups spaced apart along the conveying direction F, and each balance wheel unit group includes 10 balance wheel units 100 .

[0080] See also Figure 7 , Figure 7 This is a schematic diagram of the internal structure of the sorting device provided in an embodiment of the present application. The sorting device provided in an embodiment of the present application includes a swing unit (not shown) and a balance wheel module 600. The swing unit is used to drive the multiple balance wheel units 100 to swing. The swing unit includes a second power source (not shown) and a connecting rod mechanism 700.

[0081] In an embodiment of the present application, the second power source is a stepper motor 800. Of course, in some other embodiments, the second power source may also be a power component with a swing angle, such as a servo motor or a swing cylinder, which is not specifically limited here. The connecting rod mechanism 700 is connected to the second shaft 132 of the balance wheel unit 100 and the output shaft of the stepper motor 800 at the same time. The stepper motor 800 drives the balance wheel unit 100 to swing left / right through the connecting rod mechanism 700. Each balance wheel module 600 is equipped with a technical solution of a stepper motor 800, so that each of the balance wheel modules 600 can independently adjust the swing angle of the balance wheel 120 in the module. When multiple balance wheel modules 600 are combined into a sorting device for use, the swing angles of the balance wheel 120 at different positions of the sorting device can be set to different values, which is beneficial for the sorting device to adjust the sorting direction f of the goods.

[0082] Furthermore, the sorting equipment is provided with multiple rows of balance wheel unit groups, for example, 12 rows, spaced apart along the conveying direction F. These multiple rows of balance wheel unit groups include two rows of balance wheel unit groups located at the front and rear, and ten rows of balance wheel unit groups located between the front and rear rows. The swing unit is connected only to the ten rows of balance wheel units 100 located between the front and rear rows to drive the connected balance wheel units 100 to swing. In this embodiment, since the swing unit is not connected to the balance wheel units 100 located in the front and rear rows, the front and rear sets of balance wheel units 100 along the conveying direction F do not swing. This helps reduce the center-to-center distance between adjacent sets of balance wheel units 100 in the sorting direction F, shortening the swing control width. This, in turn, reduces the spacing requirements for goods in the sorting equipment and improves sorting efficiency.

[0083] See also Figure 8 , Figure 8 This is a schematic diagram of the external structure of the sorting device provided in an embodiment of the present application. The sorting device includes a housing 900. The upper surface of the housing 900 has a hole whose size and location match those of the balance wheel 120. The first transmission portion 121 of the balance wheel 120 always partially protrudes from the upper surface of the housing 900, which helps prevent jamming.

[0084] The above is a detailed introduction to a balance wheel unit, a balance wheel module and a sorting device provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for those skilled in the art, according to the ideas of the present application, there may be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present application.

Claims

1. A balance wheel unit for conveying and sorting goods, characterized in that: Including balance wheel and balance wheel bracket; The balance wheel is mounted on the balance wheel bracket and is capable of rotating about a first axis to transport goods; The balance wheel unit has a conveying direction and a sorting direction, and the balance wheel is provided with a first transmission part and a second transmission part along the first axis direction; The first transmission part is used to drive the balance wheel to transport the goods at a first speed when the balance wheel unit transports the goods along the transport direction; The second transmission part is used to drive the balance wheel to transport the goods at a second speed when the balance wheel unit transports the goods along the sorting direction, and the second speed is greater than the first speed; The component speed of the second speed in the conveying direction is not lower than the first speed; The first transmission part and the second transmission part are both annular friction belts and are located on the same spherical surface. The distance from any point on the first transmission part to the first axis is greater than the distance from any point on the second transmission part to the first axis. The balance wheel is a spherical balance wheel, and a transition area is provided between the first transmission part and the second transmission part. The distance from any point on the surface of the transition area to the center of the sphere is less than the radius of the sphere. The transition area is used to reduce the friction resistance borne by the balance wheel when the balance wheel unit switches between the conveying direction and the sorting direction.

2. The balance wheel unit according to claim 1, characterized in that The radius of the spherical balance wheel is R, and the width of the transition area along the first axis is between 0.5R and 0.87R.

3. The balance wheel unit according to claim 1, characterized in that The transition area is a conical surface or a concave surface.

4. The balance wheel unit according to any one of claims 1 to 3, characterized in that The sorting direction includes a first direction and a second direction, the first direction and the second direction are respectively arranged on both sides of the conveying direction, the number of the second transmission parts is two, and the two second transmission parts are respectively arranged on both sides of the first transmission part.

5. The balance wheel unit according to claim 1, characterized in that The first transmission part and / or the second transmission part are made of elastic friction-resistant material.

6. A balance wheel module, characterized in that: The invention comprises a plurality of balance wheel units according to any one of claims 1 to 4.

7. The balance wheel module according to claim 6, characterized in that: The balance wheel module further includes a frame and a driving unit; each of the balance wheel units is rotatably connected to the frame; and the driving unit is used to drive the balance wheel to rotate around the first axis.

8. The balance wheel module according to claim 7, characterized in that: The driving unit includes a driving member and a power source, wherein the power source is used to drive the driving member to rotate, and the driving member can abut against the first transmission part or the second transmission part to drive the balance wheel to rotate around the first axis.

9. The balance wheel module according to claim 8, characterized in that: The balance wheel module further includes a tensioning member installed on the frame, and the tensioning member is used to make the driving member abut against the balance wheel to maintain stable contact between the driving member and the balance wheel.

10. The balance wheel module according to claim 8, characterized in that: The driving member is a driving roller, and when the first axis is parallel to the rotation axis of the driving member, the horizontal distance between the first axis and the rotation axis of the driving member is less than the sum of the radius of the balance wheel and the rotation radius of the driving member.

11. A sorting device, characterized in that: The invention comprises a balance wheel module as claimed in any one of claims 6 to 10.

12. A sorting device, characterized in that: The sorting device includes a swing unit and multiple balance wheel units according to any one of claims 1 to 5, wherein the multiple balance wheel units are arranged in multiple columns along the conveying direction, and the swing unit is connected to the balance wheel unit located in the middle column to drive the balance wheel unit connected thereto to swing.

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