Drum motor and conveying device

Abstract

The utility model belongs to motor technical field discloses drum motor and conveying equipment. The drum motor, the one end of connecting pin is with the drum interference fit, the other end is with the interference fit of connecting sleeve, fixes the connecting sleeve and connects in the drum, makes connecting pin unable to rotate in the circumference and axial displacement of connecting sleeve and drum in the working process of drum motor, prevents connecting pin from rotating in the circumference of connecting sleeve and drum in the working process of drum motor through the limitation of the cross section of connecting pin is non -circular, thereby improves the connection stability between connecting sleeve and drum, improves the stability and reliability of drum motor transmission big moment of force, reduces the probability of drum motor failure, makes drum motor can be applied to the complex working condition of high load, high impact, to improve the applicability of drum motor. The utility model's conveying equipment includes drum motor, improves the applicability of drum motor, improves the production efficiency of conveying equipment, reduces the maintenance cost of conveying equipment.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a roller motor and conveying equipment. Background Technology

[0002] The working principle of a drum motor is as follows: when current passes through the motor, the magnetic field inside the motor interacts with the current to generate a rotating electromagnetic force. This electromagnetic force causes the motor rotor to start rotating. The motor rotor is directly connected to the shaft of the drum or indirectly connected through a series of transmission components, thereby transmitting the rotational power generated by the motor to the drum, enabling it to rotate in a predetermined direction and speed.

[0003] In related technologies, the output end of the transmission component is equipped with a side assembly fitting, which fixes the roller to the side assembly fitting so that torque is transmitted to the roller through the side assembly fitting. The existing assembly method of the roller and the side assembly fitting makes the torque transmission unstable when the roller motor is used in complex working conditions with high load and high impact. It is prone to loosening, which affects the performance and reliability of the roller motor. Utility Model Content

[0004] The purpose of this invention is to provide a roller motor and conveying equipment that can improve the stability when transmitting large torques, and improve the performance and reliability of the roller motor.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A roller motor includes a roller, a drive unit and a connecting sleeve both disposed within the roller; the connecting sleeve is sleeved outside the output end of the drive unit and meshes with the output end of the drive unit, and the drive unit is capable of driving the connecting sleeve to rotate; the roller motor further includes:

[0007] A connecting pin, wherein the cross-section of the connecting pin is non-circular and the cross-section of the connecting pin is perpendicular to the axial direction of the connecting pin;

[0008] The connecting pin extends radially along the roller, with one end of the connecting pin having an interference fit with the roller and the other end having an interference fit with the connecting sleeve.

[0009] As one possible implementation of the aforementioned roller motor, the cross-section of the connecting pin is rectangular or square.

[0010] As one possible implementation of the aforementioned drum motor, multiple connecting pins are provided, and the multiple connecting pins are arranged at intervals along the circumference of the drum.

[0011] As one possible implementation of the above-mentioned roller motor, the outer peripheral wall of the connecting sleeve is provided with a fixing groove corresponding to the connecting pin, and the inner wall of the fixing groove is provided with a limiting protrusion. One end of the connecting pin is limited between the bottom wall of the fixing groove and the limiting protrusion.

[0012] And / or, the connecting pin abuts against the outer peripheral wall of the connecting sleeve along the radial direction of the roller.

[0013] As one possible implementation of the above-mentioned roller motor, the outer peripheral wall of the connecting pin is provided with an annular groove, and the connecting pin on one side of the annular groove forms a limiting fitting part. The limiting fitting part is limited between the limiting protrusion and the bottom wall of the fixing groove, and the annular groove surface facing the groove side wall of the limiting fitting part abuts against the outer peripheral wall of the connecting sleeve.

[0014] As one possible implementation of the aforementioned roller motor, the fixing groove has two groove inner walls arranged opposite each other along the axial direction of the connecting sleeve, and the connecting pin is clamped between the two groove inner walls.

[0015] As one possible implementation of the aforementioned roller motor, the connecting pin does not protrude from the outer peripheral wall of the roller along its radial direction.

[0016] As one possible implementation of the aforementioned roller motor, the roller is provided with a through hole for the connecting pin, and the surface roughness of the inner wall of the through hole is 0.03μm to 0.07μm.

[0017] As one possible implementation of the aforementioned roller motor, the roller is a laser rapid prototyping structural component, a stamping structural component, or a CNC machining structural component.

[0018] To achieve the above objectives, the present invention also provides a conveying device, including the roller motor provided in any of the above-described embodiments.

[0019] The beneficial effects of this utility model are:

[0020] The roller motor provided in this embodiment of the utility model has one end of the connecting pin interference fit with the roller and the other end interference fit with the connecting sleeve to fix the connecting sleeve to the roller. This prevents the connecting pin from rotating circumferentially or moving axially relative to the connecting sleeve and the roller during the operation of the roller motor. By limiting the cross-section of the connecting pin to be non-circular, rotation of the connecting pin relative to the connecting sleeve and the roller circumferentially is prevented during the operation of the roller motor. This improves the connection stability between the connecting sleeve and the roller, enhances the stability and reliability of the roller motor when transmitting high torque, reduces the probability of roller motor failure, and enables the roller motor to be applied to complex working conditions with high load and high impact, thereby improving the applicability of the roller motor.

[0021] The conveying equipment provided in this embodiment includes the aforementioned roller motor. By improving the applicability of the roller motor, the production efficiency of the conveying equipment is increased, and the maintenance cost of the conveying equipment is reduced. Attached Figure Description

[0022] Figure 1 This is a side view of the drum motor provided in an embodiment of the present utility model;

[0023] Figure 2 yes Figure 1 Sectional view along axis AA;

[0024] Figure 3 This is a first-view structural schematic diagram of the connecting sleeve with the connecting pin installed according to an embodiment of the present utility model;

[0025] Figure 4 This is a second-view structural schematic diagram of the connecting sleeve with the connecting pin installed according to an embodiment of the present utility model;

[0026] Figure 5 This is a schematic diagram of the axial end face of the connecting sleeve with the connecting pin installed according to an embodiment of the present utility model;

[0027] Figure 6 This is a schematic diagram of the connecting sleeve provided in an embodiment of the present utility model.

[0028] In the picture:

[0029] 1. Roller;

[0030] 2. Drive unit; 21. Motor; 22. Transmission structure; 221. External spline;

[0031] 3. Connecting sleeve; 31. Fixing groove; 32. Limiting protrusion; 33. Internal spline; 34. Weight reduction hole;

[0032] 4. Connecting pin; 41. Limiting mating part; 42. Annular groove. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0034] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0037] like Figures 1 to 6 As shown, an embodiment of this utility model provides a roller motor, which includes a roller 1, a drive unit 2 and a connecting sleeve 3 both disposed inside the roller 1; the connecting sleeve 3 is sleeved outside the output end of the drive unit 2 and meshes with the output end of the drive unit 2, and the drive unit 2 can drive the connecting sleeve 3 to rotate; the roller motor also includes a connecting pin 4, the cross-section of the connecting pin 4 is non-circular, and the cross-section of the connecting pin 4 is perpendicular to the axial direction of the connecting pin 4; the connecting pin 4 extends radially along the roller 1, one end of the connecting pin 4 is interference-fitted with the roller 1, and the other end is interference-fitted with the connecting sleeve 3.

[0038] The roller motor provided in this embodiment of the utility model has one end of the connecting pin 4 interference fit with the roller 1 and the other end interference fit with the connecting sleeve 3, so as to fix the connecting sleeve 3 to the roller 1. This prevents the connecting pin 4 from rotating circumferentially or moving axially relative to the connecting sleeve 3 and the roller 1 during the operation of the roller motor. By limiting the cross-section of the connecting pin 4 to be non-circular, the circumferential rotation of the connecting pin 4 relative to the connecting sleeve 3 and the roller 1 during the operation of the roller motor is prevented, thereby improving the connection stability between the connecting sleeve 3 and the roller 1, improving the stability and reliability of the roller motor when transmitting high torque, reducing the probability of roller motor failure, and enabling the roller motor to be applied to complex working conditions with high load and high impact, thereby improving the applicability of the roller motor.

[0039] In some embodiments, such as Figure 5 As shown, the cross-section of the connecting pin 4 is square. Alternatively, the cross-section of the connecting pin 4 can also be rectangular, or any other non-circular shape, which will not be limited here.

[0040] In some embodiments, such as Figures 3 to 5 As shown, multiple connecting pins 4 are provided, and the multiple connecting pins 4 are arranged at intervals along the circumference of the roller 1. By connecting the roller 1 and the connecting sleeve 3 with multiple connecting pins 4, the connection stability between the roller 1 and the connecting sleeve 3 can be improved.

[0041] For example, there are eight connecting sleeves 3, which are arranged at equal intervals along the circumference of the roller 1. It should be noted that the number of connecting sleeves 3 can also be two, three, four, five, six, seven, nine, ten, etc., which will not be listed here.

[0042] In some embodiments, such as Figures 3 to 6 As shown, the outer peripheral wall of the connecting sleeve 3 is provided with a fixing groove 31 corresponding to the connecting pin 4. The inner wall of the fixing groove 31 is provided with a limiting protrusion 32. One end of the connecting pin 4 is limited between the bottom wall of the fixing groove 31 and the limiting protrusion 32. By limiting the connecting pin 4 along the radial direction of the roller 1 by the limiting protrusion 32, it is possible to prevent the connecting pin 4 from moving axially relative to the connecting sleeve 3 and the roller 1 during the operation of the roller motor, thereby improving the connection stability between the connecting sleeve 3 and the roller 1, and improving the stability and reliability of the roller motor when transmitting high torque.

[0043] In some embodiments, such as Figures 3 to 6 As shown, the connecting pin 4 abuts against the outer peripheral wall of the connecting sleeve 3 along the radial direction of the roller 1. Specifically, the outer peripheral wall of the connecting pin 4 has an annular groove 42, and the connecting pin 4 on one side of the annular groove 42 forms a limiting fitting part 41. The limiting fitting part 41 is limited between the limiting protrusion 32 and the bottom wall of the fixing groove 31, and the annular groove 42 abuts against the outer peripheral wall of the connecting sleeve 3 with the groove side wall of the limiting fitting part 41 facing it.

[0044] By abutting the connecting pin 4 against the outer peripheral wall of the connecting sleeve 3 along the radial direction of the roller 1, the connecting pin 4 can be further limited along the radial direction of the roller 1, which can prevent the connecting pin 4 from moving axially relative to the connecting sleeve 3 and the roller 1 during the operation of the roller motor, thereby improving the connection stability between the connecting sleeve 3 and the roller 1, and improving the stability and reliability of the roller motor when transmitting high torque.

[0045] In some embodiments, such as Figures 3 to 6 As shown, the fixing groove 31 has two groove inner walls arranged opposite each other along the axial direction of the connecting sleeve 3, and the connecting pin 4 is clamped between the two groove inner walls. By limiting the connecting pin 4 along the axial direction of the connecting sleeve 3 through the two groove inner walls, the axial movement of the connecting pin 4 is prevented, thereby improving the connection stability between the connecting sleeve 3 and the roller 1, and improving the stability and reliability of the roller motor when transmitting high torque.

[0046] Specifically, to facilitate the formation of the aforementioned groove sidewall, a stepped groove is formed on one axial end face of the connecting sleeve 3. The width of this groove near its bottom is greater than the width near its opening, thus forming the aforementioned fixing groove 31 in the portion near its bottom. The processing method of this fixing groove 31 is easy to form and has low cost.

[0047] In some embodiments, such as Figure 2 As shown, along the radial direction of roller 1, the connecting pin 4 does not protrude from the outer peripheral wall of roller 1. This arrangement helps improve the aesthetics of the roller motor and prevents the connecting pin 4 from affecting the external structural layout of roller 1. In addition, the interference fit between roller 1 and connecting pin 4 can also prevent external moisture, dust, etc. from entering the interior of roller 1 through the connection point between connecting pin 4 and roller 1.

[0048] In some embodiments, such as Figures 3 to 6 As shown, the roller 1 has a through hole for the connecting pin 4, and the surface roughness of the inner wall of the through hole is 0.03μm to 0.07μm. While limiting the cross-section of the connecting pin 4 to be non-circular, by increasing the surface roughness of the through hole on the roller 1 for the connecting pin 4, the outer peripheral wall of the connecting pin 4 and the inner peripheral wall of the through hole can be more tightly connected, thereby improving the connection stability between the roller 1 and the connecting sleeve 3. This allows the connecting sleeve 3 to effectively transmit high torque to the roller 1, improving the overall performance of the roller motor.

[0049] It should be noted that the surface roughness of the inner wall of the through hole can be any value within the range of 0.03 μm or greater and 0.07 μm or less. For example, the surface roughness of the inner wall of the through hole can be any one of 0.03 μm, 0.035 μm, 0.04 μm, 0.045 μm, 0.05 μm, 0.055 μm, 0.06 μm, 0.065 μm, and 0.07 μm. Preferably, the machining accuracy of the inner wall of the through hole is selected as 0.05 μm.

[0050] In some embodiments, the roller 1 is a laser rapid prototyping structural component. Processing the roller 1 using laser rapid prototyping effectively ensures the machining accuracy of the roller 1, especially the machining accuracy of the inner wall of the through holes. It also improves the structural strength of the roller 1 itself, enabling it to withstand greater pressure and impact, which helps extend the service life of the roller motor and improves the stability and reliability of the roller motor when transmitting high torque.

[0051] As an alternative, roller 1 can also be a stamped or CNC machined structural component.

[0052] In some embodiments, the drive unit 2 includes a motor 21 and a transmission structure 22, the output end of the motor 21 is connected to the transmission structure 22, and the output part of the transmission structure 22 is engaged with the connecting sleeve 3.

[0053] Specifically, the aforementioned transmission structure 22 can be a gear reduction structure. The output part of the transmission structure 22 passes through the connecting sleeve 3. The output part of the transmission structure 22 is provided with an external spline 221, and the connecting sleeve 3 is provided with an internal spline 33 that mates with the external spline 221. The output part of the transmission structure 22 and the connecting sleeve 3 are meshed and connected through the spline connection between the external spline 221 and the internal spline 33.

[0054] The motor 21 drives the connecting sleeve 3 to rotate through the transmission structure 22. Since the connecting sleeve 3 and the roller 1 are fixedly connected, the roller 1 will rotate circumferentially with the connecting sleeve 3.

[0055] In some embodiments, such as Figures 3 to 6 As shown, the connecting sleeve 3 is provided with multiple weight-reducing holes 34 arranged circumferentially to reduce the weight of the roller motor, which is beneficial to the lightweighting of the roller motor.

[0056] It should be noted that the drum motor also includes a support component, which is used for fixed connection with the external structure. The support component is used to support the drum 1, the transmission structure 22 and the connecting sleeve 3. This is prior art in the field and will not be described in detail here.

[0057] An embodiment of this utility model also provides a conveying device, including the aforementioned roller motor. This conveying device has the same technical effects as the aforementioned roller motor, and will not be repeated here.

[0058] This conveyor system improves production efficiency and reduces maintenance costs by enhancing the applicability of the roller motor.

[0059] It should be noted that the conveying equipment may also include a conveyor belt, and multiple roller motors may be arranged in sequence at intervals along the material conveying direction. The conveyor belt is sequentially fitted over the rollers 1 of the multiple roller motors. When the roller motors are working, the rollers 1 rotate, and the rollers 1 of the roller motors drive the conveyor belt to move, so as to realize the conveying of materials placed on the conveyor belt.

[0060] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A roller motor, comprising a roller (1), and a drive unit (2) and a connecting sleeve (3) both disposed within the roller (1); the connecting sleeve (3) is sleeved outside the output end of the drive unit (2) and meshes with the output end of the drive unit (2), the drive unit (2) being capable of driving the connecting sleeve (3) to rotate; characterized in that, The drum motor also includes: Connecting pin (4), the cross-section of the connecting pin (4) is non-circular, and the cross-section of the connecting pin (4) is perpendicular to the axial direction of the connecting pin (4); The connecting pin (4) extends radially along the roller (1), with one end of the connecting pin (4) having an interference fit with the roller (1) and the other end having an interference fit with the connecting sleeve (3).

2. The drum motor according to claim 1, characterized in that, The cross-section of the connecting pin (4) is rectangular or square.

3. The drum motor according to claim 1, characterized in that, The connecting pins (4) are provided in multiples, and the multiple connecting pins (4) are arranged at intervals along the circumference of the roller (1).

4. The drum motor according to any one of claims 1 to 3, characterized in that, The outer peripheral wall of the connecting sleeve (3) is provided with a fixing groove (31) corresponding to the connecting pin (4) one by one. The inner wall of the fixing groove (31) is provided with a limiting protrusion (32). One end of the connecting pin (4) is limited between the bottom wall of the fixing groove (31) and the limiting protrusion (32). And / or, the connecting pin (4) abuts against the outer peripheral wall of the connecting sleeve (3) radially along the roller (1).

5. The drum motor according to claim 4, characterized in that, The outer peripheral wall of the connecting pin (4) is provided with an annular groove (42). The connecting pin (4) on one side of the annular groove (42) forms a limiting fitting part (41). The limiting fitting part (41) is limited between the limiting protrusion (32) and the bottom wall of the fixing groove (31). The annular groove (42) faces the groove side wall of the limiting fitting part (41) and abuts against the outer peripheral wall of the connecting sleeve (3).

6. The drum motor according to claim 4, characterized in that, The fixing groove (31) has two groove inner walls that are arranged opposite each other along the axial direction of the connecting sleeve (3), and the connecting pin (4) is clamped between the two groove inner walls.

7. The drum motor according to any one of claims 1 to 3, characterized in that, Along the radial direction of the roller (1), the connecting pin (4) does not protrude from the outer peripheral wall of the roller (1).

8. The drum motor according to any one of claims 1 to 3, characterized in that, The roller (1) is provided with a through hole for the connecting pin (4), and the surface roughness of the inner wall of the through hole is 0.03μm~0.07μm.

9. The drum motor according to claim 8, characterized in that, The roller (1) is a laser rapid prototyping structural component, a stamping structural component, or a CNC machining structural component.

10. A conveying device, characterized in that, Includes the drum motor as described in any one of claims 1 to 9.

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