Multi-drive electric roller and conveying equipment

Abstract

The embodiment of the utility model provides a multi-drive electric roller and conveying equipment, the multi-drive electric roller comprises a roller body and at least two drive motors, the at least two drive motors are coaxially arranged in the roller body and are respectively arranged at the two ends of the roller body, and all the drive motors synchronously rotate to drive the roller body to rotate. Compared with a single-drive electric roller in the prior art, the multi-drive electric roller has the advantages that a plurality of driving motors which synchronously run are coaxially arranged in the roller body, so that large driving force can be provided for the roller body, the load capacity is improved, the size of the roller body is not additionally increased, and extra energy consumption caused by increase of the size and the weight of the roller body is avoided.

Description

Technical Field

[0001] This application relates to the technical field of logistics equipment, and particularly to a multi-drive electric roller and a conveying device. Background Art

[0002] An electric roller is a component applied to an industrial automation conveying system, which can provide continuous or intermittent power transmission. Due to its characteristics of compact structure, simple installation, stable operation, energy conservation and environmental protection, the electric roller has been widely used in modern logistics, manufacturing and other fields, such as being applied in a roller conveyor line.

[0003] In the related art, in order to improve the load capacity of the electric roller, a driving motor with a larger power needs to be selected.

[0004] However, the driving motor with a larger power has a larger volume, which will increase the volume of the cylinder body and the corresponding weight, resulting in an increase in the overall cost of manufacturing the conveying line of the electric roller, and it is also easy to limit the installation of the electric roller. Utility Model Content

[0005] The embodiments of this application provide a multi-drive electric roller and a conveying device, which are used to improve the load capacity of the electric roller and the conveying capacity of the entire conveying device on the premise of not increasing the volume of the electric roller and not excessively increasing the energy consumption.

[0006] In a first aspect, the embodiments of this application provide a multi-drive electric roller, including:

[0007] A cylinder body;

[0008] At least two driving motors, which are coaxially arranged in the cylinder body, at least two motors are respectively arranged at both ends of the cylinder body, and all the driving motors rotate synchronously to drive the cylinder body to rotate.

[0009] In a feasible implementation manner, the driving motor is an outer rotor motor, and the outer rotor motor is arranged in the cylinder body through a mounting seat, and the core shaft of the outer rotor motor extends out of the cylinder body.

[0010] In a feasible implementation manner, the multi-drive electric roller further includes at least two groups of speed reducers;

[0011] The speed reducer is arranged in the cylinder body, and the speed reducer is connected to the driving motor.

[0012] In a feasible implementation manner, the speed reducer is connected to the cylinder body through a connection component, and the connection component is configured as a fixed connection component and / or an adjustable connection component.

[0013] In a feasible implementation manner, the fixed connection component includes a fixed connector, the fixed connector is connected to the output end of the reducer, the fixed connector is fixedly connected to the cylinder body, and the connection manner between the fixed connector and the cylinder body is one of welding, bonding, and fastener connection.

[0014] In a feasible implementation manner, the adjustable connection component includes a first adjusting member, a pressing member, a second adjusting member, and a locking member;

[0015] The first adjusting member, the pressing member, and the second adjusting member are sequentially arranged inside the cylinder body. The first adjusting member is connected to the output end of the reducer, and the locking member sequentially passes through the second adjusting member and the pressing member and is connected to the first adjusting member;

[0016] The locking member is used to control the distance between the first adjusting member and the second adjusting member to control the pressing of the pressing member against the cylinder body.

[0017] In a feasible implementation manner, the adjustable connection component further includes a docking member. The docking member is connected to the first adjusting member, the output end of the reducer is connected to the docking member, the locking member sequentially passes through the second adjusting member and the pressing member and is connected to the docking member, and the locking member controls the distance between the first adjusting member and the second adjusting member through the docking member.

[0018] In a feasible implementation manner, the adjustable connection component further includes a support member. The support member is coaxially arranged with the pressing member and is arranged inside the pressing member. The dimension of the pressing member in the first direction is greater than the dimension of the support member in the first direction. The pressing member is configured as an elastic member, and the locking member is configured as a bolt-nut assembly.

[0019] In a feasible implementation manner, the first adjusting member is provided with a frustum of a cone. The frustum of the cone extends in the first direction and its diameter gradually decreases. The pressing member is arranged between the frustum of the cone and the cylinder body. The second adjusting member controls the pressing of the pressing member against the frustum of the cone and the cylinder body, and the pressing member is a steel ball.

[0020] In a feasible implementation manner, at least one sprocket is arranged at one end of the multi-drive electric roller, and at least one sprocket is fixedly connected to the cylinder body;

[0021] Or, at least one sprocket is arranged at both ends of the multi-drive electric roller, and at least one sprocket is fixedly connected to the cylinder body.

[0022] In a second aspect, the present application further provides a conveying device, including the multi-drive electric roller as in the first aspect.

[0023] In a first aspect, an embodiment of the present application provides a multi-driven electric roller, which includes a cylinder body and at least two drive motors, both coaxially arranged inside the cylinder body. The at least two motors are respectively arranged at both ends of the cylinder body, and all the drive motors rotate synchronously to drive the cylinder body to rotate. Compared with the single-driven electric roller in the prior art, multiple synchronously operating drive motors are coaxially arranged inside the cylinder body of this multi-driven electric roller, so that it can not only provide a large driving force for the cylinder body to improve the load capacity, but also does not additionally increase the volume of the cylinder body, avoiding the additional energy consumption caused by increasing the volume and weight of the cylinder body.

[0024] In a second aspect, an embodiment of the present application provides a conveying device, which includes the multi-driven electric roller of the first aspect. Since this conveying device includes the multi-driven electric roller in any of the above technical solutions, it has all the beneficial effects of the multi-driven electric roller in any of the above technical solutions, which will not be elaborated here. Description of the Drawings

[0025] The drawings described herein are used to provide a further understanding of the present utility model, and constitute a part of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present application and do not constitute an improper limitation to the present utility model.

[0026] In the drawings:

[0027] Figure 1 is a schematic structural diagram of the multi-driven electric roller provided in the first embodiment of the present application;

[0028] Figure 2 is a schematic structural diagram of the multi-driven electric roller provided in the second embodiment of the present application;

[0029] Figure 3 is a schematic structural diagram of the multi-driven electric roller provided in the third embodiment of the present application;

[0030] Figure 4 is a schematic structural diagram of the multi-driven electric roller provided in the fourth embodiment of the present application;

[0031] Figure 5 is a schematic structural diagram of the multi-driven electric roller provided in the fifth embodiment of the present application;

[0032] Description of the reference numerals:

[0033] 100 - cylinder body; 200 - drive motor; 300 - reducer; 400 - connection component; 500 - sprocket;

[0034] 210 - housing; 220 - permanent magnet; 230 - fixed shaft; 240 - electromagnetic winding; 250 - drive plate; 260 - first bearing; 270 - second bearing; 280 - bearing seat; 290 - elastic member; 2100 - Hall plate; 2110 - shock absorber seat; 2120 - rotor; 410 - fixed connection assembly; 420 - adjustable connection assembly;

[0035] 421 - first adjusting member; 422 - extrusion member; 423 - second adjusting member; 424 - locking member; 425 - docking member; 426 - supporting member; 2111 - shock absorbing claw. Detailed implementation manners

[0036] In order to enable those skilled in the art to better understand the technical solutions in this application, the following will clearly and completely describe the technical solutions in the embodiments of this application in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of this application.

[0037] In the description of the embodiments of this application, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of this application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0038] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection; it may be directly connected, or indirectly connected through an intermediate medium. It may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the horizontal height of the first feature is less than that of the second feature.

[0040] An electric roller is a component applied to an industrial automation conveying system, which can provide continuous or intermittent power transmission. Due to its characteristics of compact structure, simple installation, stable operation, energy saving and environmental protection, the electric roller has been widely used in modern logistics, manufacturing and other fields, such as in a roller conveyor line.

[0041] In the related art, in order to improve the load capacity of the electric roller, a driving motor with a larger power needs to be selected.

[0042] However, a driving motor with a larger power has a larger volume, which will increase the volume and corresponding weight of the cylinder body, resulting in an increase in manufacturing cost, and it is also likely to cause restrictions on the installation of the electric roller.

[0043] To solve the above problems, the embodiments of the present application provide a multi-drive electric roller and a conveying device. The solutions provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings of the specification.

[0044] Figure 1 is a schematic structural diagram of a multi-drive electric roller provided by the first embodiment of the present application.

[0045] Referring to Figure 1 As shown, the embodiments of the present application provide a multi-drive electric roller, including at least two driving motors 200, all of which are arranged in the cylinder body 100, and all the driving motors 200 rotate synchronously to drive the cylinder body 100 to rotate. For example, in some examples, the multi-drive electric roller includes two driving motors 200, and the two driving motors 200 are coaxially arranged in the cylinder body 100 and are respectively fixedly connected to the cylinder body 100. Or, in other examples, the multi-drive electric roller includes three driving motors 200, and the three driving motors 200 are coaxially arranged in the cylinder body 100 and are respectively fixedly connected to the cylinder body 100 to jointly drive the cylinder body 100 to rotate. It can be understood that the more the number of driving motors 200 arranged in the cylinder body 100, the stronger the load capacity of the multi-drive electric roller. The number of driving motors 200 in the cylinder body 100 can be determined according to the length of the cylinder body 100 and the required load capacity.

[0046] In addition, it should be noted that to ensure the smooth operation of the multi-drive electric roller, all the drive motors 200 installed inside the cylinder body 100 need to rotate synchronously (in the same direction and at the same speed). The control method for controlling the synchronous rotation of multiple drive motors 200 is a prior art. For example, the synchronous rotation of multiple motors can be achieved by means of encoders and software control, etc., which will not be elaborated here.

[0047] It can be understood that compared with the single-drive electric roller in the prior art, multiple synchronously operating drive motors 200 are coaxially arranged inside the cylinder body 100 of this multi-drive electric roller. Thus, it can not only provide a greater driving force for the cylinder body 100, improve the load capacity, but also not increase the volume of the cylinder body 100 additionally, avoiding the additional energy consumption brought by increasing the volume and weight of the cylinder body 100.

[0048] There are various arrangement ways for multiple motors inside the cylinder body 100. In some examples, at least two drive motors 200 are arranged at the same end of the cylinder body 100.

[0049] In some other examples, at least one drive motor 200 is provided at both ends of the cylinder body 100. This arrangement way of the drive motor 200 can ensure that the cylinder body 100 operates more stably.

[0050] Exemplarily, the drive motor 200 can be an outer-rotor motor. The outer-rotor motor is arranged inside the cylinder body 100 through a mounting seat. The core shaft of the outer-rotor motor extends outside the cylinder body 100 and is fixedly connected to the mounting brackets on both sides of the cylinder body 100.

[0051] Specifically, referring to Figure 1 As shown, in some examples, the drive motor 200 includes a housing 210, a permanent magnet 220, a fixed shaft 230, an electromagnetic winding 240, and a drive plate 250. Among them, the housing 210 is a cylindrical structure, having a first end and a second end, including a side wall and a bottom wall. The side wall and the bottom wall enclose a hollow chamber. There is an opening at the top of the hollow chamber (i.e., at the first end of the housing 210), and the bottom of the hollow chamber (i.e., at the second end of the housing 210) is closed by the bottom wall. The housing 210 can be made of metal or other materials, and the housing 210 can provide protection for the components arranged inside it. In some examples, the diameter of a part of the side wall of the housing 210 close to the bottom wall is smaller than the diameter of the part of the side wall away from the bottom wall to facilitate fixing the housing 210 using fixing parts.

[0052] The permanent magnet 220 can be a natural magnet, which is fixedly arranged on the inner surface of the housing 210 in the circumferential direction of the housing 210, so as to generate a magnetic field inside the housing 210. Exemplarily, the permanent magnet 220 can include a plurality of magnetic pole pieces attached to the inner surface of the housing 210. The magnetic pole pieces include a first magnetic pole piece and a second magnetic pole piece. The first magnetic pole piece and the second magnetic pole piece have opposite polarities, and a plurality of first magnetic pole pieces and a plurality of second magnetic pole pieces are arranged alternately, so as to form a magnetic field for driving the relative rotation of the housing 210 and the electromagnetic winding 240.

[0053] The fixed shaft 230 can be a multi-sided motor shaft. For example, a hexagonal motor shaft with a regular hexagonal cross-section. It can be understood that when the cross-section of the fixed shaft 230 is polygonal, the fixed shaft 230 is convenient to be fixed, so as to avoid relative rotation with the fixing member.

[0054] The electromagnetic winding 240 can generate a magnetic field under the action of current. The electromagnetic winding 240 is fixedly installed on the fixed shaft 230. Specifically, the electromagnetic winding 240 includes a silicon steel sheet group and a coil. The silicon steel sheet group includes a plurality of silicon steel sheets, and the plurality of silicon steel sheets are closely attached together to form the silicon steel sheet group. The silicon steel sheet group is arranged in the circumferential direction of the fixed shaft 230, and the coil is wound on the silicon steel sheet group.

[0055] The multi-sided motor shaft fixed with the electromagnetic winding 240 is axially arranged in the housing 210 along the axial direction of the housing 210, and the electromagnetic winding 240 and the permanent magnet 220 are arranged opposite to each other. It can be understood that when the coil in the electromagnetic winding 240 is energized, it can generate a magnetic field. Under the interaction of the magnetic field generated by the electromagnetic winding 240 and the magnetic field generated by the permanent magnet 220, the multi-sided motor shaft and the housing 210 will rotate relatively.

[0056] In addition, the driving plate 250 can be used to change the direction and magnitude of the current in the electromagnetic winding 240, so as to change the direction and intensity of the magnetic field generated by the electromagnetic winding 240, and further change the relative rotation speed or rotation direction between the fixed shaft 230 and the housing 210. Moreover, the driving plate 250 is fixedly installed on the fixed shaft 230, and the driving plate 250 is located inside the housing 210. Exemplarily, the driving plate 250 is fixedly sleeved on the fixed shaft 230, and the driving plate 250 is close to the side of the opening of the housing 210. Since the driving plate 250 is arranged inside the housing 210, the overall volume of the driving motor 200 can be reduced, and the installation space outside the outer rotor 2120 roller motor can be saved.

[0057] It can be understood that the driving plate 250 includes an input end and an output end. One side of the input end of the driving plate 250 can be connected to the power supply and the controller, and the output end of the driving plate 250 is electrically connected to the electromagnetic winding 240 through a wire. The connection manner of the driving plate 250, the power supply and the controller is the prior art in this field, and will not be elaborated here.

[0058] Continue to refer to Figure 1 As shown, the fixed shaft 230 has a cavity inside, and one end of the fixed shaft 230 located outside the housing 210 has an opening communicating with the cavity. In addition, a through hole communicating with the cavity is provided in the part of the fixed shaft 230 located inside the housing 210. A cable (such as a power cable, a control cable, etc.) can enter the cavity from the opening at the end of the fixed shaft 230, and then pass through the cavity and the through hole on the fixed shaft 230 to be electrically connected to the driving board 250.

[0059] Continue to refer to Figure 1 As shown, in some examples, the drive motor 200 further includes a first bearing 260. The first bearing 260 is fixedly connected to the first end of the housing 210, and the fixed shaft 230 is inserted through the first bearing 260, which is beneficial to the relative rotation between the fixed shaft 230 and the housing 210. In some other examples, the cylinder motor further includes a second bearing 270. The second bearing 270 is fixedly connected to the second end of the housing 210, and the fixed shaft 230 is inserted through the second bearing 270. It can be understood that in these examples, since bearings are provided at both ends of the fixed shaft 230, the relative friction between the housing 210 and the fixed shaft 230 can be reduced, and the rotation efficiency between the two can be improved. In addition, exemplarily, both the first bearing 260 and the second bearing 270 can be deep groove ball bearings, and the specific dimensions can be selected according to the outer diameter of the housing 210.

[0060] Continue to refer to Figure 1 As shown, the drive motor 200 further includes a bearing seat 280. The bearing seat 280 is fixedly connected to the first end of the housing 210, and the first bearing 260 is fixedly arranged in the bearing seat 280. In addition, the bearing seat 280 can be designed as the structure of an end cover, and a central hole for the fixed shaft 230 to pass through is provided at its central position. While fixing the first bearing 260, the bearing seat 280 can close the opening of the housing 210. Exemplarily, the bearing seat 280 can be fixed on the housing 210 by using a lock nut sleeved on the fixed shaft 230. In addition, rectangular parallelepiped-shaped protrusions evenly distributed in the circumferential direction and two rectangular slot holes symmetrically distributed on both sides can be provided on the bearing seat 280 for clamping with corresponding grooves on the housing 210, so as to ensure the connection strength between the bearing seat 280 and the housing 210 and prevent relative sliding between the bearing seat 280 and the housing 210 in the circumferential direction.

[0061] Continue to refer to Figure 1As shown, the drive motor 200 further includes an elastic member 290. The elastic member 290 is sleeved on the fixed shaft 230, and both ends of the elastic member 290 are respectively abutted against the surfaces of the electromagnetic winding 240 and the second bearing 270. The elastic member 290 can provide pressure for the second bearing 270 to ensure the stable state of the second bearing 270. In addition, since the electromagnetic winding 240 is fixedly connected to the fixed shaft 230, the elastic member 290 can provide an axial force for the fixed shaft 230, that is, the elastic member 290 provides a stable axial pressure inside the drive motor 200 to ensure the stability when the housing 210 rotates relative to the fixed shaft 230. Exemplarily, the elastic member 290 can be a compression spring, and its diameter is larger than the diameter of the fixed shaft 230, so that it can be sleeved on the fixed shaft 230.

[0062] As Figure 1 shown, exemplarily, the drive motor 200 further includes a Hall plate 2100. The Hall plate 2100 is electrically connected to the controller through a cable, and it can be used to detect the relative rotation speed and angle between the fixed shaft 230 and the housing 210. The Hall plate 2100 is connected to the fixed shaft 230 and is arranged inside the housing 210. In addition, the Hall plate 2100 can be arranged adjacent to the drive plate 250, so as to make full use of the installation space inside the housing 210.

[0063] As Figure 1 shown, in some examples, the housing 210 of the drive motor 200 is fixedly connected to the cylinder 100 through a bearing seat 280 and a shock-absorbing seat 2110 to reduce the influence of the vibration generated during the rotation of the drive motor 200 on the cylinder 100. In addition, since the drive motor 200 does not directly contact the cylinder 100, the noise generated by the vibration during the rotation of the drive motor 200 is reduced. In addition, when the cylinder 100 is subjected to an impact load and generates an impact force, the shock-absorbing seat 2110 can effectively absorb this part of the impact force through its own contraction, avoiding the rotational interference of the drive motor 200 during the rotation operation and destroying the dynamic balance.

[0064] In addition, exemplarily, the outer diameter of the housing 210 of the drive motor 200 is smaller than the inner diameter of the cylinder 100. The first end of the housing 210 is connected to the cylinder 100 through a bearing seat 280, and the second end of the housing 210 is connected to the cylinder 100 through a shock-absorbing seat 2110, so as to avoid the direct contact between the housing 210 and the cylinder 100 and reduce the vibration transmission between the two.

[0065] Exemplarily, the shock-absorbing seat 2110 is a ring structure and can be sleeved on the housing 210 of the drive motor 200. Additionally, a plurality of shock-absorbing claws 2111 are evenly distributed at circumferential intervals of the shock-absorbing seat 2110. The shock-absorbing claws 2111 protrude from the shock-absorbing seat 2110, and the shock-absorbing claws 2111 abut against the inner surface of the cylinder body 100, so as to effectively absorb the vibration generated during the rotation of the drive motor 200 and prevent this part of the vibration from being transmitted to the cylinder body 100. To ensure the vibration absorption capacity of the shock-absorbing seat 2110, the shock-absorbing claws 2111, and the bearing seat 280, the shock-absorbing seat 2110, the shock-absorbing claws 2111, and the bearing seat 280 can be configured to be made of plastic material.

[0066] As can be seen from the above description, in the first embodiment, the housing 210 of the drive motor 200 rotates to drive the cylinder body 100 to rotate.

[0067] Figure 2 It is a schematic structural diagram of a multi-drive electric roller provided by the second embodiment of the present application; Figure 3 It is a schematic structural diagram of a multi-drive electric roller provided by the third embodiment of the present application.

[0068] Referring to Figure 2 and Figure 3 As shown, in some other examples, the multi-drive electric roller includes at least two drive motors 200 and at least two sets of speed reducers 300. The number of speed reducers 300 is the same as the number of drive motors 200. The speed reducers 300 are arranged inside the cylinder body 100, and the speed reducers 300 are connected to the drive motors 200 in one-to-one correspondence. Specifically, the output end of the drive motor 200 is fixedly connected to the input end of the speed reducer 300, and the output end of the speed reducer 300 is connected to the cylinder body 100.

[0069] Exemplarily, the above speed reducer 300 can be a planetary speed reducer 300, which has a speed reducer 300 housing, an input shaft, a sun gear, planet gears, and an output shaft. The speed reducer 300 housing is fixedly connected to the roller motor, the input shaft is fitted and installed in the speed reducer 300 housing, the sun gear is fitted and installed in the input shaft, the sun gear meshes with the planet gears, the planet gears are connected to the planet gear carrier, and the planet gear carrier is connected to the output shaft. This planetary speed reducer 300 is prior art in the field, and its internal structure will not be elaborated herein.

[0070] In the second and third embodiments, the housing 210 of the drive motor 200 is connected to the fixed shaft 230 and is fixed in place, while the rotor 2120 located inside the housing 210 rotates. The rotor 2120 drives the cylinder 100 to rotate through the speed reducer 300. Exemplarily, the drive motor 200 includes a housing 210, a permanent magnet 220 (not shown in the figure), and a rotor 2120. One end of the housing 210 is fixedly connected to the mounting seat, and the other end is connected to the speed reducer 300; the permanent magnet 220 is disposed inside the housing 210, and the rotor 2120 is disposed inside the housing 210. The rotor 2120 is connected to the input end of the speed reducer 300.

[0071] In some examples, the multi-drive electric roller also includes at least two connection components 400; the number of connection components 400 is the same as the number of speed reducers 300 and drive motors 200. Each speed reducer 300 is connected to the cylinder 100 through the connection component 400, and all drive motors 200 drive the cylinder 100 to rotate through the speed reducers 300 and connection components 400.

[0072] Exemplarily, the connection component 400 can be configured as a fixed connection component 410 and / or an adjustable connection component 420. For example, all the connection components 400 can be fixed connection components 410, or all can be adjustable connection components 420, or it can include both a fixed connection component 410 and an adjustable connection component 420.

[0073] Referring to Figure 2 As shown, the fixed connection component 410 includes a fixed connector. The fixed connector is connected to the output end of the speed reducer 300 and is fixedly connected to the cylinder 100. That is, the speed reducer 300 drives the cylinder 100 to rotate through the fixed connector.

[0074] Exemplarily, the fixed connector can be a connection disk, which is plugged into the cylinder 100 and can be welded to the cylinder 100 to ensure a firm connection.

[0075] In addition, the connection disk can be fixed in the cylinder 100 by fasteners, or by bonding, or by snap connection. It can be known that in the related art, there are other ways to fix the fasteners in the cylinder 100, which will not be listed one by one here.

[0076] Continuing to refer to Figure 3 As shown, the adjustable connection component 420 includes a first adjusting member 421, a pressing member 422, a second adjusting member 423, and a locking member 424.

[0077] The first adjusting member 421, the squeezing member 422 and the second adjusting member 423 are sequentially arranged in the cylinder body 100. The first adjusting member 421 is connected to the output end of the speed reducer 300. The locking member 424 sequentially passes through the second adjusting member 423, the squeezing member 422 and is connected to the first adjusting member 421. The locking member 424 is used to control the distance between the first adjusting member 421 and the second adjusting member 423, so as to control the squeezing member 422 to squeeze against the cylinder body 100. When the locking member 424 drives the first adjusting member 421 and the second adjusting member 423 to move towards each other and the distance between them gradually decreases, the squeezing member 422 is gradually squeezed against the inner wall of the cylinder body 100 under the squeezing action of the first adjusting member 421 and the second adjusting member 423. Furthermore, there is a large frictional force between the squeezing member 422 and the inner wall of the cylinder body 100, thereby realizing the connection with the cylinder body 100. It should be noted that at least one of the first adjusting member 421 and the second adjusting member 423 can move within the cylinder body 100.

[0078] In some examples, the adjustable connection assembly 420 further includes a docking member 425. The docking member 425 is connected to the first adjusting member 421. The output end of the speed reducer 300 is connected to the docking member 425. The locking member 424 sequentially passes through the second adjusting member 423, the squeezing member 422 and is connected to the docking member 425. The locking member 424 controls the distance between the first adjusting member 421 and the second adjusting member 423 through the docking member 425. Exemplarily, a through hole is provided at the middle position of the first adjusting member 421. The docking member 425 is cylindrical and has a boss at one end close to the speed reducer 300. The boss is snap-fitted on the first adjusting member 421. The docking member 425 is fitted and installed in the through hole of the first adjusting member 421, and the docking member 425 and the first adjusting member 421 can be fixedly connected or connected by a key. In addition, one end of the docking member 425 is sleeved on the output end of the speed reducer 300, and the other end is connected to the locking member 424. Under the action of the docking member 425, when the locking member 424 acts, the locking member 424 controls the distance between the first adjusting member 421 and the second adjusting member 423 to gradually decrease or increase.

[0079] In some examples, the squeezing member 422 is configured as an elastic member 290; the locking member 424 is configured as a bolt-nut assembly. That is to say, when the squeezing member 422 is squeezed by the first adjusting member 421 and the second adjusting member 423, the radial dimension of the squeezing member 422 increases, so that it can be tightly squeezed against the inner wall of the cylinder body 100 to realize the connection with the cylinder body 100. Both the first adjusting member 421 and the second adjusting member 423 can be ring-shaped metal members with openings.

[0080] Additionally, by way of example, the adjustable connection assembly 420 further includes a support member 426. The support member 426 is coaxially arranged with the extrusion member 422, and the support member 426 is disposed within the extrusion member 422. The dimension of the extrusion member 422 in the first direction is greater than the dimension of the support member 426 in the first direction. The locking member 424 passes through the support member 426 and is connected to the first adjusting member 421. It can be understood that since the support member 426 is sleeved inside the extrusion member 422, it can provide a supporting force for the extrusion member 422, improve the overall stability of the extrusion member 422, and ensure that the extrusion member 422 can be in close contact with the cylinder body 100. By way of example, the support member 426 is made of a material with a relatively hard texture, and it has a bottom wall and a side wall. The side wall is arranged along the outer edge of the bottom wall, and the bottom wall and the side wall enclose a hollow space. A through hole for the locking member 424 to pass through is provided on the bottom wall. During specific assembly, the support member 426 abuts against the side wall of the first adjusting member 421 and is buckled on the docking member 425.

[0081] In some other examples, the first adjusting member 421 is provided with a frustum. The frustum extends in the first direction and its diameter gradually decreases. The extrusion member 422 is disposed between the frustum and the cylinder body 100. The second adjusting member 423 controls the extrusion member 422 to be extruded against the frustum and the cylinder body 100. By way of example, the extrusion member 422 can be configured as a steel ball. And a plurality of steel balls can be placed between the frustum and the cylinder body 100. When the locking member 424 drives the first adjusting member 421 and the second adjusting member 423 to move towards each other and the distance between them decreases, the second adjusting member 423 pushes the steel balls to move. The steel balls tend to move radially under the action of the frustum, so as to be tightly connected to the cylinder body 100 and achieve a firm connection with the cylinder body 100.

[0082] Figure 4 is a schematic structural diagram of a multi-driven electric roller provided in the fourth embodiment of the present application; Figure 5 is a schematic structural diagram of a multi-driven electric roller provided in the fifth embodiment of the present application.

[0083] Referring to Figure 4 and Figure 5 As shown, in some examples, the multi-driven electric roller includes at least one sprocket 500, and at least one sprocket 500 is fixedly connected to the cylinder body 100. For example, one sprocket 500 is fixedly arranged at one end of the multi-driven electric roller, or two sprockets 500 can be fixedly and juxtaposedly arranged at one end of the multi-driven electric roller.

[0084] In some other examples, at least one sprocket 500 is provided at both ends of the multi-driven electric roller, and the at least one sprocket 500 is fixedly connected to the cylinder body 100. For example, one sprocket 500 is provided at both ends of the multi-driven electric roller, or two sprockets 500 are arranged side by side. When the multi-driven electric roller is used as a power roller, the sprockets 500 at both ends thereof are respectively connected to the sprockets 500 at both ends of the non-powered roller, so that the forces at both ends of the non-powered roller are evenly distributed, and thus the rotation is more stable.

[0085] In a second aspect, an embodiment of the present application provides a conveying device, which includes the multi-driven electric roller of the first aspect. Since the conveying device includes the multi-driven electric roller in any of the above technical solutions, it has all the beneficial effects of the multi-driven electric roller in any of the above technical solutions, and will not be described in detail herein.

[0086] It is easy to understand that those skilled in the art can combine, split, and reorganize the embodiments of the present application on the basis of several embodiments provided by the present application to obtain other embodiments, and none of these embodiments exceeds the protection scope of the present application.

[0087] The above specific embodiments have further elaborated on the purpose, technical solutions, and beneficial effects of the embodiments of the present application. It should be understood that the above are only the specific embodiments of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application. Any modifications, equivalent replacements, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application shall be included in the protection scope of the embodiments of the present application.

Claims

1. A multi-driven electric roller, characterized in that, Comprising: A cylinder body (100); At least two drive motors (200), all coaxially arranged inside the cylinder body (100), and at least two motors are respectively arranged at both ends of the cylinder body (100), and all the drive motors (200) rotate synchronously to drive the cylinder body (100) to rotate.

2. The multi-driven electric roller according to claim 1, wherein The drive motor (200) is an outer rotor motor, and the outer rotor motor is arranged inside the cylinder body (100) through a mounting seat, and the core shaft of the outer rotor motor extends outside the cylinder body (100).

3. The multi-drive electric roller according to claim 1, characterized in that, The multi-drive electric roller also includes at least two sets of speed reducers (300); The speed reducer (300) is arranged inside the cylinder body (100), and the speed reducer (300) is connected to the drive motor (200).

4. The multi-drive electric roller according to claim 3, characterized in that, The speed reducer (300) is connected to the cylinder body (100) through a connection assembly (400), and the 0 connection assembly (400) is configured as a fixed connection assembly (410) and / or an adjustable connection assembly (420).

5. The multi-drive electric roller according to claim 4, characterized in that, The fixed connection assembly (410) includes a fixed connecting piece, the fixed connecting piece is connected to the output end of the speed reducer (300), the fixed connecting piece is fixedly connected to the cylinder body (100), and the connection mode between the fixed connecting piece and the cylinder body (100) is one of welding, bonding and fastener connection.

6. The multi-drive electric roller according to claim 4, characterized in that, The adjustable connection assembly (420) includes a first adjusting piece (421), a pressing piece (422), a second adjusting piece (423) and a locking piece (424); The first adjusting piece (421), the pressing piece (422) and the second adjusting piece (423) are sequentially arranged inside the cylinder body (100), the first adjusting piece (421) is connected to the output end of the speed reducer (300), and the locking piece (424) sequentially penetrates through the second adjusting piece (423), the pressing piece (422) and is connected to the first adjusting piece (421); The locking piece (424) is used to control the distance between the first adjusting piece (421) and the second adjusting piece (423) to control the pressing piece (422) to press on the cylinder body (100).

7. The multi-driven electric roller according to claim 6, characterized in that, The adjustable connection assembly (420) further includes a docking piece (425), the docking piece (425) is connected to the first adjusting piece (421), the output end of the speed reducer (300) is connected to the docking piece (425), the locking piece (424) sequentially penetrates through the second adjusting piece (423), the pressing piece (422) and is connected to the docking piece (425), and the locking piece (424) controls the distance between the first adjusting piece (421) and the second adjusting piece (423) through the docking piece (425).

8. The multi-drive electric roller according to claim 6, characterized in that, The adjustable connection assembly (420) further includes a support member (426), the support member (426) is coaxially arranged with the extrusion member (422), and the support member (426) is arranged inside the extrusion member (422). The dimension of the extrusion member (422) in the first direction is greater than the dimension of the support member (426) in the first direction. The extrusion member (422) is configured as an elastic member (290), and the locking member (424) is configured as a bolt-nut assembly.

9. The multi-driven electric roller according to claim 6, characterized in that, The first adjusting member (421) is provided with a frustum of a cone, the frustum of the cone extends in the first direction and its diameter gradually decreases. The extrusion member (422) is arranged between the frustum of the cone and the cylinder body (100). The second adjusting member (423) controls the extrusion member (422) to be extruded against the frustum of the cone and the cylinder body (100). The extrusion member (422) is a steel ball.

10. The multi-driven electric roller according to any one of claims 1-9, characterized in that, At least one sprocket (500) is provided at one end of the multi-driven electric roller, and at least one of the sprockets (500) is fixedly connected to the cylinder body (100); Alternatively, at least one sprocket (500) is provided at both ends of the multi-driven electric roller, and at least one of the sprockets (500) is fixedly connected to the cylinder body (100).

11. A conveying device, characterized in that, Comprising the multi-driven electric roller according to any one of claims 1-10.

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