The driving idler assembly of a conveyor and the conveyor

Abstract

The present application discloses a driving idler assembly of a conveyor and a conveyor, relating to the field of production logistics. The driving idler assembly includes: an outer roller body and an inner roller body, the outer roller body is sleeved on the outside of the inner roller body, and a limiting groove is provided on the outer peripheral wall of the inner roller body; a magnetic member and a conductive coil; a limiting mechanism, the limiting mechanism includes a fixed seat and a limiting member, the fixed seat is fixed on the inner peripheral wall of the outer roller body, and the limiting member is arranged on the fixed seat and is adapted to move along the radial direction of the outer roller body; when the rotation speed of the outer roller body is not greater than the preset rotation speed, the limiting member extends into the limiting groove, and the outer roller body drives the inner roller body to rotate; when the rotation speed of the outer roller body is greater than the preset rotation speed, the limiting member extends out of the limiting groove, and the outer roller body rotates relative to the inner roller body. By arranging a limiting mechanism in the driving idler assembly, the limiting mechanism can control the magnetic field generated by the magnetic member to cut the conductive coil according to the rotation speed of the outer roller body. When the conveyor belt is running at a low speed, the power consumption of the conveyor can be reduced.

Description

Technical Field

[0001] The present application relates to the field of production logistics, and in particular to a driving idler assembly of a conveyor and a conveyor having the driving idler assembly of the conveyor. Background Art

[0002] When a conveyor is used to transfer goods in a production logistics system, a driving idler is used to support the conveyor belt. When the conveyor belt moves, it can drive the driving idler to rotate. The gravity of the goods transported by the conveyor belt can be decomposed to form a thrust parallel to the extending direction of the conveyor belt. When the conveying path of the conveyor belt has a height difference and the conveyor belt transports goods downward, the thrust direction of the goods is consistent with the running direction of the conveyor belt, and the thrust can cause the speed of the conveyor belt to increase further, resulting in an overspeed out-of-control problem of the conveyor belt and easily causing production accidents.

[0003] In the related art, a driving idler assembly is installed in an existing conveyor. A magnetic member is provided on the outer roller body of the driving idler assembly, and a conductive coil is provided on the inner roller body. When the outer roller body is driven by the conveyor belt to rotate, the magnetic member rotates, and the magnetic field generated by the magnetic member can cut the conductive coil, causing the conductive coil to generate electric energy, so that the kinetic energy of the conveyor belt can be indirectly converted into electric energy to reduce the speed of the conveyor belt. Since the magnetic member always cuts the conductive coil to continuously generate electric energy, when there is no overspeed out-of-control problem with the conveyor belt, the existing driving idler will continuously consume the kinetic energy of the conveyor belt, resulting in an increase in the power consumption of the driving motor of the conveyor and increasing the operating cost of the conveyor. Summary of the Invention

[0004] In order to reduce the power consumption of the conveyor in the low-speed operation state of the conveyor belt and reduce the operating cost of the conveyor, the present application provides a driving idler assembly of a conveyor.

[0005] The present application further provides a conveyor.

[0006] The driving idler assembly of a conveyor provided by the present application adopts the following technical solution:

[0007] A driving idler assembly for a conveyor, comprising: an outer roller body and an inner roller body, both the outer roller body and the inner roller body are adapted to rotate about a rotation axis, the outer roller body is sleeved outside the inner roller body, the inner peripheral wall of the outer roller body is spaced apart from the outer peripheral wall of the inner roller body, and a limiting groove is provided on the outer peripheral wall of the inner roller body; a magnetic member and a conductive coil, the magnetic member is provided on the outer roller body, the conductive coil is provided on the inner roller body, and the magnetic member and the conductive coil are arranged opposite to each other; a limiting mechanism, the limiting mechanism includes a fixed seat and at least one limiting member, the fixed seat is fixed on the inner peripheral wall of the outer roller body, the limiting member is provided on the fixed seat and is adapted to move relative to the fixed seat in the radial direction of the outer roller body, and the limiting member is adapted to be opposite to the limiting groove; wherein, when the rotation speed of the outer roller body is not greater than a preset rotation speed, the limiting member extends into the limiting groove, and the outer roller body drives the inner roller body to rotate; when the rotation speed of the outer roller body is greater than the preset rotation speed, the limiting member extends out of the limiting groove, and the outer roller body rotates relative to the inner roller body.

[0008] By adopting the above technical solution, by arranging a limiting mechanism in the driving idler assembly, the limiting mechanism can control the magnetic field generated by the magnetic member to cut the conductive coil according to the rotation speed of the outer roller body. When the conveyor belt is running at a low speed, the limiting mechanism can make the inner roller body and the outer roller body rotate together. The magnetic member arranged on the outer roller body and the conductive coil arranged on the inner roller body are relatively stationary, and no electric energy is generated in the conductive coil, which can reduce the kinetic energy consumption of the conveyor belt. Compared with the prior art, when the conveyor belt is running at a low speed, the driving idler assembly of the present application can reduce the power consumption of the conveyor, thereby reducing the operating cost of the conveyor.

[0009] Preferably, the limiting mechanism has a plurality of the limiting members, and the plurality of the limiting members are arranged in sequence along the circumferential direction of the outer roller body.

[0010] By adopting the above technical solution, when the outer roller body rotates at a rotation speed lower than the preset rotation speed, one of the plurality of limiting members opposite to the limiting groove can move towards the limiting groove to extend into the limiting groove, so that the outer roller body and the inner roller body can be connected. By redundantly arranging the limiting members, it can be ensured that at least one limiting member of the limiting mechanism can be in limiting cooperation with the limiting groove, thereby preventing the limiting mechanism from failing as much as possible, and further improving the working reliability of the driving idler assembly.

[0011] Preferably, the outer peripheral wall of the inner roller body is provided with a plurality of the limiting grooves, and the plurality of the limiting grooves are arranged in sequence along the circumferential direction of the inner roller body.

[0012] By adopting the above technical solution, when the outer roller body rotates at a rotational speed lower than the preset rotational speed, the limiting member can move towards one of the plurality of opposing limiting grooves to extend into the limiting groove, enabling the connection between the outer roller body and the inner roller body. By redundantly arranging the limiting grooves, it can be ensured that the limiting member is more easily limited and matched with the corresponding installation groove, enabling the outer roller body to be connected and matched with the inner roller body in a timely manner at a low rotational speed to drive the inner roller body to rotate, thereby reducing the power consumption of the conveyor.

[0013] Preferably, the fixed seat is provided with an installation groove, the installation groove extends along the radial direction of the outer roller body, and the limiting member extends into the installation groove and is adapted to move along the installation groove.

[0014] By adopting the above technical solution, the inner wall of the installation groove can abut against the part of the limiting member extending into the installation groove, and the installation groove can guide the limiting member, so that the limiting member can accurately move towards the inner roller body to extend into the limiting groove, and further prevent the failure of the limiting mechanism, improving the product quality of the driving idler assembly.

[0015] Preferably, a stop protrusion is provided at one end of the limiting member extending into the installation groove, the stop protrusion protrudes from the outer peripheral wall of the limiting member, a stop ring is installed at the open end of the installation groove, the stop ring surrounds the limiting member, and the stop ring is adapted to abut against the stop protrusion.

[0016] By adopting the above technical solution, when the limiting member moves towards the inner roller body along the radial direction of the outer roller body and the limiting member moves towards the outside of the installation groove, through the abutting cooperation between the stop protrusion and the stop ring, the stop ring can limit the stop protrusion from continuing to move towards the outside of the installation groove, thereby limiting the limiting member from disengaging from the installation groove, and further preventing the failure of the limiting mechanism.

[0017] Preferably, the limiting mechanism further includes: an elastic member, one end of the elastic member abuts against the bottom wall of the installation groove and the other end abuts against the limiting member, and the elastic member is used to support the limiting member to adjust the magnitude of the preset rotational speed.

[0018] By adopting the above technical solution, by arranging the elastic member between the bottom wall of the installation groove and the limiting member, the elastic member can support the limiting member. When the rotational speed of the outer roller body gradually increases, when the limiting member performs centrifugal motion, it can jointly squeeze the elastic member with the bottom wall of the installation groove. After being compressed, the elastic member can generate an elastic force, and the elastic force can support the limiting member, thereby increasing the centripetal force received by the limiting member, and further increasing the difficulty for the limiting member to disengage from the limiting groove, enabling the magnitude of the preset rotational speed to increase.

[0019] Preferably, along the axial direction of the outer roller body, a blade group is provided at the end of the outer roller body. The blade group has a plurality of air guiding blades, and the plurality of air guiding blades are sequentially spaced apart along the circumferential direction of the outer roller body. An air outlet is formed between any two adjacent air guiding blades.

[0020] By adopting the above technical solution, when the outer roller body rotates around the rotation axis, the outer roller body can drive the air guiding blades to rotate, and the air guiding blades can discharge the air in the outer roller body through the air outlet. In this way, an air flow can be formed in the outer roller body, and the heat generated when the conductive coil generates electric energy can be discharged through the air flow in the outer roller body, so as to prevent the conductive coil from overheating and damage as much as possible, and further improve the working reliability of the driving idler assembly and help improve the service life of the driving idler assembly.

[0021] Preferably, the driving idler assembly of the conveyor further includes: a power storage element, which is electrically connected to the conductive coil, and the power storage element is used to store the electric energy generated by the conductive coil.

[0022] By adopting the above technical solution, the conductive coil can supply power to the power storage element through the circuit between the conductive coil and the power storage element, so that the electric energy generated by the conductive coil can be stored in the power storage element. The power storage element can be electrically connected to the electrical components of the conveyor, and the power storage element can supply power to the electrical components of the conveyor. By arranging the power storage element between the conductive coil and the electrical components of the conveyor, the power storage element can buffer the current generated by the conductive coil, so that the magnitude of the current output by the conductive coil is more stable.

[0023] Preferably, the driving idler assembly of the conveyor further includes: a mounting seat, and both the outer roller body and the inner roller body are rotatably mounted on the mounting seat. Among them, the central axis of the outer roller body, the central axis of the inner roller body and the rotation axis are coaxially arranged.

[0024] By adopting the above technical solution, by mounting the outer roller body and the inner roller body on the mounting seat, the mounting seat can position the outer roller body and the inner roller body, and can ensure that the outer roller body and the inner roller body are always coaxially arranged, and can avoid the center of gravity of the driving idler assembly deviating from the rotation axis of the outer roller body and the inner roller body due to the eccentric arrangement of the outer roller body and the inner roller body as much as possible, so that the driving idler assembly can run smoothly.

[0025] A conveyor provided by the present application adopts the following technical solution:

[0026] A conveyor includes the driving idler assembly of the above-mentioned conveyor.

[0027] By adopting the above technical scheme, the conveyor is provided with a transmission roller assembly, and a limiting mechanism is provided in the transmission roller assembly. The limiting mechanism can control the magnetic field generated by the magnetic part to cut the conductive coil according to the rotation speed of the outer roller body. When the conveyor belt is running at a low speed, the limiting mechanism can make the inner roller body and the outer roller body rotate, and the magnetic part arranged on the outer roller body and the conductive coil arranged on the inner roller body are relatively still. No electrical energy is generated in the conductive coil, which can reduce the kinetic energy consumption of the conveyor belt. Compared with the prior art, when the conveyor belt is running at a low speed, the conveyor of the present application consumes less power, thereby reducing the operating cost of the conveyor.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. By setting a limit mechanism in the transmission roller assembly, the limit mechanism can control the magnetic field generated by the magnetic part to cut the conductive coil according to the rotation speed of the outer roller body. When the conveyor belt is running at a low speed, the limit mechanism can make the inner roller body and the outer roller body rotate together, and the magnetic part arranged on the outer roller body and the conductive coil arranged on the inner roller body are relatively stationary. No electric energy is generated in the conductive coil, which can reduce the kinetic energy consumption of the conveyor belt. Compared with the prior art, when the conveyor belt is running at a low speed, the transmission roller assembly of the present application can reduce the power consumption of the conveyor, thereby reducing the operating cost of the conveyor;

[0030] 2. By arranging the elastic member between the bottom wall of the installation groove and the limiting member, the elastic member can support the limiting member. When the rotation speed of the outer roller body gradually increases, the limiting member can squeeze the elastic member together with the bottom wall of the installation groove when performing centrifugal motion. The elastic member can generate elastic force after being compressed. The elastic force can support the limiting member, thereby increasing the centripetal force on the limiting member, thereby increasing the difficulty of the limiting member to escape from the limiting groove, and increasing the preset rotation speed;

[0031] 3. When the outer roller body rotates around the rotation axis, the outer roller body can drive the air guide blades to rotate, and the air guide blades can discharge the air in the outer roller body through the exhaust port, so that airflow can be formed in the outer roller body. The heat generated when the conductive coil generates electricity can be discharged through the airflow in the outer roller body, thereby preventing the conductive coil from being overheated and damaged as much as possible, thereby improving the working reliability of the transmission roller assembly and helping to increase the service life of the transmission roller assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic diagram of a transmission roller assembly according to an embodiment of the present application;

[0033] Figure 2 is a front view of a transmission roller assembly according to an embodiment of the present application;

[0034] Figure 3It is a cross-sectional view of the driving idler assembly according to an embodiment of the present application;

[0035] Figure 4 is Figure 3 an enlarged schematic view of part A in

[0036] Explanation of reference numerals:

[0037] 100, driving idler assembly;

[0038] 10, outer roller body; 101, blade group; 1011, air guiding blade; 1012, air outlet;

[0039] 20, inner roller body; 201, limiting groove;

[0040] 30, magnetic part; 40, conductive coil;

[0041] 50, limiting mechanism; 501, fixed seat; 5011, mounting groove; 502, limiting part; 5021, stop protrusion; 503, stop ring;

[0042] 60, mounting seat. Detailed implementation manners

[0043] The following further describes the present application in detail Figures 1 - 4 with reference to the attached drawings.

[0044] An embodiment of the present application discloses a driving idler assembly 100 of a conveyor. The driving idler assembly 100 is arranged on the conveyor and is used to support the conveyor belt of the conveyor. The conveyor belt can drive the driving idler assembly 100 to rotate.

[0045] Referring to Figures 1 - 4 , the driving idler assembly 100 includes: an outer roller body 10, an inner roller body 20, a magnetic part 30, a conductive coil 40 and a limiting mechanism 50. Both the outer roller body 10 and the inner roller body 20 are adapted to rotate around the rotation axis. Among them, the rotation axis passes through both the outer roller body 10 and the inner roller body 20 at the same time, and the rotation axis can extend along the axial direction of the driving idler assembly 100. The axial direction of the driving idler assembly 100 can refer to Figure 2 the left - right direction in

[0046] Moreover, the limiting mechanism 50 includes a fixed seat 501 and at least one limiting member 502. The limiting member 502 can be configured as a limiting post, a limiting plate or other structures. The fixed seat 501 is fixed to the inner peripheral wall of the outer roller body 10, and the fixed seat 501 can be configured as a barrel-shaped structure, a block-shaped structure or the like according to actual use conditions. The limiting member 502 is arranged on the fixed seat 501 and is adapted to move relative to the fixed seat 501 in the radial direction of the outer roller body 10. One end of the limiting member 502 is mounted on the fixed seat 501, and the other end of the limiting member 502 can be configured as the free end of the limiting member 502. The limiting member 502 is adapted to face the limiting groove 201. When the outer roller body 10 rotates relative to the inner roller body 20 until the limiting member 502 faces the limiting groove 201, after the free end of the limiting member 502 is inserted into the limiting groove 201, when the outer roller body 10 continues to rotate to drive the limiting member 502 to rotate, the free end of the limiting member 502 can abut against the groove wall of the limiting groove 201, and the outer roller body 10 can apply a driving force to the inner roller body 20 through the limiting member 502, and the driving force can drive the inner roller body 20 to rotate with the outer roller body 10. When the limiting member 502 moves out of the limiting groove 201, that is, after the limiting member 502 is separated from the inner roller body 20, the outer roller body 10 no longer drives the inner roller body 20 to rotate.

[0047] Furthermore, the magnetic member 30 is arranged on the outer roller body 10, and the conductive coil 40 is arranged on the inner roller body 20. The magnetic member 30 and the conductive coil 40 are arranged opposite to each other. The magnetic member 30 can be a magnet, and the magnet can generate a magnetic field. The magnet can be directly mounted on the outer roller body 10. Of course, in some embodiments, the magnet can also be indirectly mounted on the outer roller body 10 by being mounted on the fixed seat 501. The conductive coil 40 can be electrically connected to an external circuit. For example, the conductive coil 40 can be electrically connected to an electrical appliance of the conveyor. When the limiting member 502 is inserted into the limiting groove 201 so that the outer roller body 10 drives the inner roller body 20 to rotate together, the outer roller body 10 and the inner roller body 20 are relatively stationary. At this time, the magnet and the conductive coil 40 are relatively stationary, and the magnetic field generated by the magnet cannot cut the conductive coil 40, and no current is generated in the conductive coil 40. When the limiting member 502 moves out of the limiting groove 201 so that the outer roller body 10 no longer drives the inner roller body 20 to rotate, relative movement occurs between the outer roller body 10 and the inner roller body 20. At this time, the magnet and the conductive coil 40 rotate relative to each other, and the magnetic field generated by the magnet can cut the conductive coil 40, and current is generated in the conductive coil 40. The driving roller assembly 100 can convert the kinetic energy of the conveyor belt into electrical energy to reduce the speed of the conveyor belt, achieving the technical effect that the driving roller assembly 100 hinders the movement of the conveyor belt, and the running speed of the conveyor belt can be reduced to within the safe speed range, thereby improving the use safety of the conveyor.

[0048] According to the drive idler assembly 100 of the embodiments of the present application, the extension or retraction of the limiting member 502 into or out of the limiting groove 201 can be determined by the resultant force received by the limiting member 502. When the magnitude of the resultant force received by the limiting member 502 is less than the centripetal force required by the limiting member 502 at the current rotational speed, the limiting member 502 can move in a direction away from the limiting groove 201, so that the outer roller body 10 can rotate relative to the inner roller body 20, and further the drive idler assembly 100 can convert the kinetic energy of the conveyor belt into electrical energy to decelerate the conveyor belt. When the magnitude of the resultant force received by the limiting member 502 is not less than the centripetal force required by the limiting member 502 at the current rotational speed, the limiting member 502 can move in a direction close to the limiting groove 201, so that the outer roller body 10 can drive the inner roller body 20 to rotate, and further the drive idler assembly 100 does not hinder the operation of the conveyor belt. It should be noted that the resultant force received by the limiting member 502 can be composed of the gravity of the limiting member 502 itself, the supporting force provided by the fixed seat 501 to the limiting member 502, and the force provided by other components to the limiting member 502, etc.

[0049] Therefore, by adjusting the maximum resultant force received by the limiting member 502 and pointing towards the inner roller body 20 to adjust the maximum centripetal force of the limiting member 502, the minimum rotational speed required for the limiting member 502 to move in a direction away from the inner roller body 20 can be changed. The minimum rotational speed required for the limiting member 502 to move in a direction away from the inner roller body 20 can be set as a preset rotational speed. When the rotational speed of the outer roller body 10 is not greater than the preset rotational speed, the limiting member 502 extends into the limiting groove 201, and the outer roller body 10 drives the inner roller body 20 to rotate. When the rotational speed of the outer roller body 10 is greater than the preset rotational speed, the limiting member 502 extends out of the limiting groove 201, and the outer roller body 10 rotates relative to the inner roller body 20.

[0050] Thus, by providing the limiting mechanism 50 in the drive idler assembly 100, the limiting mechanism 50 can control the magnetic field generated by the magnetic member 30 to cut the conductive coil 40 according to the rotational speed of the outer roller body 10. When the conveyor belt is in a state of running at a low speed (that is, the outer roller body 10 runs at a rotational speed less than the preset rotational speed) after being driven, the limiting mechanism 50 can make the inner roller body 20 and the outer roller body 10 rotate together, the magnetic member 30 provided on the outer roller body 10 and the conductive coil 40 provided on the inner roller body 20 are relatively stationary, and no electrical energy is generated in the conductive coil 40, which can reduce the kinetic energy consumption of the conveyor belt. Compared with the prior art, when the conveyor belt is in a state of running at a low speed, the drive idler assembly 100 of the embodiments of the present application can reduce the power consumption of the conveyor, thereby reducing the operating cost of the conveyor.

[0051] See Figure 3, in some embodiments of the present application, the limiting mechanism 50 may have a plurality of limiting members 502, and the plurality of limiting members 502 are arranged in sequence along the circumferential direction of the outer roller body 10. Among them, by providing the limiting members 502 in plurality, each limiting member 502 is adapted to be disposed opposite to the limiting groove 201. When the outer roller body 10 rotates at a rotational speed lower than the preset rotational speed, one of the plurality of limiting members 502 opposite to the limiting groove 201 can move towards the limiting groove 201 to extend into the limiting groove 201, so that the outer roller body 10 can be connected to the inner roller body 20. By redundantly providing the limiting members 502, it can be ensured that at least one limiting member 502 of the limiting mechanism 50 can be in limiting cooperation with the limiting groove 201, thereby preventing the limiting mechanism 50 from failing as much as possible, and further improving the working reliability of the driving idler assembly 100.

[0052] See Figure 3 , in some embodiments of the present application, a plurality of limiting grooves 201 may be provided on the outer peripheral wall of the inner roller body 20, and the plurality of limiting grooves 201 are arranged in sequence along the circumferential direction of the inner roller body 20. Among them, by providing the limiting grooves 201 in plurality, each limiting groove 201 is adapted to be disposed opposite to the limiting member 502. When the outer roller body 10 rotates at a rotational speed lower than the preset rotational speed, the limiting member 502 can move towards one of the plurality of limiting grooves 201 opposite to it to extend into the limiting groove 201, so that the outer roller body 10 can be connected to the inner roller body 20. By redundantly providing the limiting grooves 201, it can be ensured that the limiting member 502 can be more easily in limiting cooperation with the corresponding mounting groove 5011, and the outer roller body 10 can be connected and cooperated with the inner roller body 20 in time at a low rotational speed to drive the inner roller body 20 to rotate, thereby reducing the power consumption of the conveyor.

[0053] Further, by providing both the limiting members 502 and the limiting grooves 201 in plurality, the plurality of limiting members 502 can be respectively inserted into the corresponding limiting grooves 201. On the premise of ensuring that at least one limiting member 502 of the limiting mechanism 50 can be in limiting cooperation with the limiting groove 201, the outer roller body 10 can be connected and cooperated with the inner roller body 20 in time at a low rotational speed to drive the inner roller body 20 to rotate, and further improve the product quality of the driving idler assembly 100.

[0054] See Figure 3 、 Figure 4, in some embodiments of the present application, the fixed seat 501 may be provided with an installation groove 5011, and the installation groove 5011 extends along the radial direction of the outer roller body 10. The limiting member 502 extends into the installation groove 5011 and is adapted to move along the installation groove 5011. Among them, the installation groove 5011 has an open mouth, and the open mouth of the installation groove 5011 faces the inner roller body 20. The limiting member 502 can extend into the installation groove 5011 from the open mouth of the installation groove 5011. The inner wall of the installation groove 5011 can abut against the part of the limiting member 502 extending into the installation groove 5011. The installation groove 5011 can guide the limiting member 502, so that the limiting member 502 can accurately move towards the inner roller body 20 to extend into the limiting groove 201, thereby preventing the limiting mechanism 50 from failing as much as possible and improving the product quality of the driving idler assembly 100.

[0055] See Figure 3 , Figure 4 , in some embodiments of the present application, a stop protrusion 5021 may be provided at one end of the limiting member 502 extending into the installation groove 5011. Among them, the stop protrusion 5021 can be arranged close to the end of the limiting member 502, or the stop protrusion 5021 can also be arranged at the end of the limiting member 502. The stop protrusion 5021 protrudes from the outer peripheral wall of the limiting member 502, and the stop protrusion 5021 can be integrally formed with the limiting member 502, that is to say, the stop protrusion 5021 and the limiting member 502 can be constructed as an integrally formed part. In some other embodiments, the stop protrusion 5021 can be press-fitted with the limiting member 502. A stop ring 503 is installed at the open end of the installation groove 5011. In some specific embodiments, the stop ring 503 can be press-fitted with the open end of the installation groove 5011 by interference fit. Of course, in some other embodiments, the stop ring 503 can be assembled to the open end of the installation groove 5011 by fasteners.

[0056] The stop ring 503 is arranged around the limiting member 502, so that interference between the stop ring 503 and the limiting member 502 can be avoided as much as possible, and the probability of the limiting member 502 getting stuck can be reduced, thereby further preventing the limiting mechanism 50 from failing. And the stop ring 503 is adapted to abut against the stop protrusion 5021. When the limiting member 502 moves towards the inner roller body 20 along the radial direction of the outer roller body 10 and the limiting member 502 moves towards the outside of the installation groove 5011, through the abutting cooperation between the stop protrusion 5021 and the stop ring 503, the stop ring 503 can limit the stop protrusion 5021 from continuing to move towards the outside of the installation groove 5011, thereby limiting the limiting member 502 from disengaging from the installation groove 5011, and further preventing the limiting mechanism 50 from failing. Moreover, by adjusting the depth of the stop ring 503 extending into the installation groove 5011, the stroke distance of the limiting member 502 can be adjusted, so that the depth of the limiting member 502 extending into the limiting groove 201 is more appropriate.

[0057] See Figure 3 and Figure 4 In some embodiments of the present application, the limiting mechanism 50 may further include: an elastic member, one end of the elastic member abuts against the bottom wall of the mounting groove 5011 and the other end abuts against the limiting member 502. The elastic member is used to support the limiting member 502 to adjust the magnitude of the preset rotational speed. In some specific embodiments, the elastic member may be a helical spring, but the present application is not limited thereto. For example, in some embodiments, the elastic member may be a torsion spring or the like. By arranging the elastic member between the bottom wall of the mounting groove 5011 and the limiting member 502, the elastic member can support the limiting member 502. When the rotational speed of the outer roller body 10 gradually increases, when the limiting member 502 performs centrifugal motion, it can jointly squeeze the elastic member with the bottom wall of the mounting groove 5011. After being compressed, the elastic member can generate an elastic force, and the elastic force can support the limiting member 502, so that the centripetal force received by the limiting member 502 can be increased, and further the difficulty for the limiting member 502 to disengage from the limiting groove 201 can be increased, and the magnitude of the preset rotational speed can be increased.

[0058] Therefore, by adjusting the elastic coefficient of the elastic member, the magnitude of the elastic force received by the limiting member 502 can be adjusted, and thus the magnitude of the preset rotational speed can be adjusted. Designers can select a suitable elastic member according to the actual use situation of the conveyor, and further the preset rotational speed of the outer roller body 10 can be more suitable. The outer roller body 10 can be separated from the inner roller body 20 in time to enable the conductive coil 40 to generate electric energy, which helps to avoid the conveyor belt running too fast and getting out of control as much as possible.

[0059] See Figures 1 - 3 In some embodiments of the present application, along the axial direction of the outer roller body 10, a blade group 101 may be provided at the end of the outer roller body 10. The axial direction of the outer roller body 10 may refer to Figure 2 the left - right direction in

[0060] In some embodiments of the present application, the transmission roller assembly 100 may further include: an electric storage component (not shown in the figure), which is electrically connected to the conductive coil 40, and is used to store the electric energy generated by the conductive coil 40. Among them, since the inner roller body 20 is rotatable and the inner roller body 20 can drive the conductive coil 40 to rotate, the inner roller body 20 can be installed with electrodes, and the electrodes can be electrically connected to the conductive coil 40. The outer side of the inner roller body 20 is fixed with brushes. When the inner roller body 20 drives the conductive coil 40 to rotate, the brushes circulate through multiple electrodes, and the brushes and electrodes cooperate to conduct the current generated by the conductive coil 40 to the outside of the transmission roller.

[0061] The energy storage device may be a battery pack, a capacitor, etc. The energy storage device may be electrically connected to the brushes. The conductive coil 40 may supply power to the energy storage device through the circuit between the conductive coil 40 and the energy storage device, so that the electric energy generated by the conductive coil 40 may be stored in the energy storage device. The energy storage device may be electrically connected to the electrical components of the conveyor, and the energy storage device may supply power to the electrical components of the conveyor. By arranging the energy storage device between the conductive coil 40 and the electrical components of the conveyor, the energy storage device may buffer the current generated by the conductive coil 40, so that the current output by the conductive coil 40 may be more stable.

[0062] See also Figures 1 - 3 In some embodiments of the present application, the transmission roller assembly 100 may further include: a mounting seat 60, on which both the outer roller body 10 and the inner roller body 20 are rotatably mounted, wherein the central axis of the outer roller body 10, the central axis of the inner roller body 20 and the rotation axis are coaxially arranged. It can also be understood that the outer roller body 10 and the inner roller body 20 are coaxially arranged, and the central axis of the outer roller body 10 can be the rotation axis of the outer roller body 10, and the central axis of the inner roller body 20 can be the rotation axis of the inner roller body 20.

[0063] By installing the outer roller body 10 and the inner roller body 20 on the mounting seat 60, the mounting seat 60 can position the outer roller body 10 and the inner roller body 20, and can ensure that the outer roller body 10 and the inner roller body 20 are always coaxially arranged, and can avoid the eccentric arrangement of the outer roller body 10 and the inner roller body 20 to cause the center of gravity of the transmission roller assembly 100 to deviate from the rotation axis of the outer roller body 10 and the inner roller body 20, thereby making the transmission roller assembly 100 run smoothly. Further, the mounting seat 60 has a connection structure, and the mounting seat 60 can be connected to the frame of the conveyor through the connection structure.

[0064] In addition, the transmission roller assembly 100 may further include structures such as a limit plate, wherein the limit plate is arranged at the end of the transmission roller assembly 100 along the axial direction of the transmission roller assembly 100, and at least one of the inner roller body 20 and the outer roller body 10 is rotatable relative to the limit plate. The limit plate is used to limit the conveyor belt to prevent the conveyor belt from escaping from the transmission roller assembly 100. The limit plate and other structures have been reflected in the existing technical solutions and will not be described here one by one.

[0065] Based on this, the present application further discloses a conveyor. According to the conveyor described in the embodiments of the present application, it includes the driving idler assembly 100 described in the above embodiments. The driving idler assembly 100 is arranged on the conveyor. A limiting mechanism 50 is arranged in the driving idler assembly 100. The limiting mechanism 50 can control the magnetic field generated by the magnetic member 30 to cut the conductive coil 40 according to the rotation speed of the outer roller body 10. When the conveyor belt is running at a low speed, the limiting mechanism 50 can make the inner roller body 20 rotate with the outer roller body 10. The magnetic member 30 arranged on the outer roller body 10 and the conductive coil 40 arranged on the inner roller body 20 are relatively stationary, and no electric energy is generated in the conductive coil 40, which can reduce the kinetic energy consumption of the conveyor belt. Compared with the prior art, when the conveyor belt is running at a low speed, the conveyor described in the embodiments of the present application consumes less power, thereby reducing the operating cost of the conveyor.

[0066] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A driving idler assembly of a conveyor, characterized in that, Comprising: An outer roller body (10) and an inner roller body (20), both the outer roller body (10) and the inner roller body (20) are adapted to rotate about a rotation axis, the outer roller body (10) is sleeved outside the inner roller body (20), the inner peripheral wall of the outer roller body (10) is spaced apart from the outer peripheral wall of the inner roller body (20), and a limiting groove (201) is provided on the outer peripheral wall of the inner roller body (20); A magnetic member (30) and a conductive coil (40), the magnetic member (30) is provided on the outer roller body (10), the conductive coil (40) is provided on the inner roller body (20), and the magnetic member (30) and the conductive coil (40) are oppositely arranged; A limiting mechanism (50), the limiting mechanism (50) includes a fixed seat (501) and at least one limiting member (502), the fixed seat (501) is fixed to the inner peripheral wall of the outer roller body (10), the limiting member (502) is provided on the fixed seat (501) and is adapted to move relative to the fixed seat (501) in the radial direction of the outer roller body (10), and the limiting member (502) is adapted to be opposite to the limiting groove (201); Wherein, when the rotation speed of the outer roller body (10) is not greater than a preset rotation speed, the limiting member (502) extends into the limiting groove (201), and the outer roller body (10) drives the inner roller body (20) to rotate; when the rotation speed of the outer roller body (10) is greater than the preset rotation speed, the limiting member (502) extends out of the limiting groove (201), and the outer roller body (10) rotates relative to the inner roller body (20); The fixed seat (501) is provided with an installation groove (5011), the installation groove (5011) extends in the radial direction of the outer roller body (10), the limiting member (502) extends into the installation groove (5011) and is adapted to move along the installation groove (5011); The limiting mechanism (50) further includes: an elastic member, one end of the elastic member abuts against the bottom wall of the installation groove (5011) and the other end abuts against the limiting member (502), and the elastic member is used to support the limiting member (502), and the elastic coefficient of the elastic member is adjusted to adjust the magnitude of the preset rotation speed.

2. The driving idler assembly of a conveyor according to claim 1, characterized in that The limiting mechanism (50) has a plurality of the limiting members (502), and the plurality of the limiting members (502) are arranged in sequence along the circumferential direction of the outer roller body (10).

3. The drive idler assembly of a conveyor according to claim 1 or 2, characterized in that, A plurality of the limiting grooves (201) are provided on the outer peripheral wall of the inner roller body (20), and the plurality of the limiting grooves (201) are arranged in sequence along the circumferential direction of the inner roller body (20).

4. A driving idler assembly of a conveyor according to claim 1, wherein, A stop protrusion (5021) is provided at one end of the limiting member (502) extending into the installation groove (5011), the stop protrusion (5021) protrudes from the outer peripheral wall of the limiting member (502), a stop ring (503) is installed at the open end of the installation groove (5011), the stop ring (503) is arranged around the limiting member (502), and the stop ring (503) is adapted to abut against the stop protrusion (5021).

5. The drive idler assembly of a conveyor according to claim 1, wherein, In the axial direction of the outer roller body (10), a blade group (101) is provided at the end of the outer roller body (10). The blade group (101) has a plurality of air guiding blades (1011). The plurality of air guiding blades (1011) are sequentially spaced apart in the circumferential direction of the outer roller body (10). An air discharge port (1012) is formed between any two adjacent air guiding blades (1011).

6. The drive idler assembly of a conveyor according to claim 1, characterized in that, Further included is: a power storage member, which is electrically connected to the conductive coil (40) and is used for storing the electric energy generated by the conductive coil (40).

7. The driving idler assembly of a conveyor according to claim 1, characterized in that, Further included is: a mounting seat (60). The outer roller body (10) and the inner roller body (20) are rotatably mounted on the mounting seat (60). Among them, the central axis of the outer roller body (10), the central axis of the inner roller body (20), and the rotation axis are coaxially arranged.

8. A conveyor, characterized in that, It includes a driving idler assembly of the conveyor according to any one of claims 1-7.

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