A hub motor driving device and a sorting machine

Abstract

The application discloses a kind of wheel hub motor driving device and sorting machine, it is related to logistics sorting technical field, including being arranged on annular track and being independent detachable wheel hub motor, the wheel hub motor is installed on bottom plate and drives bottom plate to displace along annular track, the side of the bottom plate is provided with the guide wheel rolling along annular track, the other side of bottom plate is provided with pressure arm, and pressure arm is provided with first installation slot for connecting wheel hub motor main shaft;Compared with traditional chain drive, the application not only avoids the noise generated by mechanical impact during chain sprocket operation, improves environmental comfort, and the sorting trolley individual independence is stronger using the driving device, and the overall operation will not be affected by the failure of single driving device.

Description

Technical Field

[0001] This invention relates to the field of logistics sorting technology, specifically to a hub motor drive device and a sorting machine. Background Technology

[0002] As B2C e-commerce orders continue to grow, their demands for logistics timeliness, accuracy, sorting efficiency, and automation are also increasing. Express logistics sorting service providers are placing higher requirements on automated and intelligent sorting equipment, and the application of sorting equipment is becoming more and more widespread.

[0003] Existing sorting machines generally consist of a track and sorting trolleys. Multiple sorting trolleys run along the track, and the drive device on the sorting trolleys is generally a chain drive mechanism. For example, a sorting device disclosed in the publication titled "An Automatic Sorting Machine for Logistics Sorting" (publication number CN215587200U) includes a conveying device capable of bidirectional automatic unloading, a support device, and two unloading auxiliary devices. The conveying device is mounted on the support device, and unloading auxiliary devices are respectively arranged on the left and right sides of the conveying device. The conveying device includes multiple conveying components, a transmission chain mechanism, and a drive motor. Therefore, the drive device of this sorting machine is a chain drive. When the circular track is very long, the tension of the chain becomes very large, which can easily lead to insufficient strength. Furthermore, if a certain part of the chain is damaged, the machine needs to be stopped for maintenance, which will seriously affect the sorting operation. Summary of the Invention

[0004] This invention provides a hub motor drive device to achieve stable driving of a sorting cart.

[0005] The present invention provides the following technical solution: a hub motor drive device, comprising a hub motor arranged on a circular track and being independently detachable, the hub motor being mounted on a base plate and driving the base plate to move along the circular track, a guide wheel being provided on one side of the base plate and rolling along the circular track, and a pressure arm being provided on the other side of the base plate, and a first mounting groove being provided on the pressure arm for connecting the hub motor spindle.

[0006] As a further improvement of the present invention, one end of the two pressure arms is connected by a first connecting plate, and the first connecting plate is fixed on a first pin. The first pin is rotatably mounted on the base plate, and the shaft core on the first pin is parallel to the side surface of the base plate. The other end of the two pressure arms is connected by a second connecting plate, and a notch is provided on the side of the second connecting plate away from the hub motor to limit the swing of the second connecting plate.

[0007] As a further improvement of the present invention, a second pin is rotatably provided on the base plate, and the second pin is parallel to the first pin. A screw perpendicular to the second pin is fixed on the second pin, and a nut is rotatably provided at the top of the screw. A compression spring is sleeved on the screw below the nut. When the screw swings into the notch, the compression spring provides elastic force to drive the second connecting plate to move towards the base plate.

[0008] As a further improvement of the present invention, a first washer is provided between the nut and the compression spring, and a second washer is provided between the second connecting plate and the compression spring.

[0009] As a further improvement of the present invention, a sleeve is also provided between the first gasket and the second gasket.

[0010] As a further improvement of the present invention, the pressure arm is provided with a first mounting groove for mounting the hub motor spindle, and a pressure plate is connected to the pressure arm at the first mounting groove by screws. The pressure plate is provided with a second mounting groove for the hub motor spindle to pass through. The contour of the groove area enclosed by the first mounting groove and the second mounting groove is adapted to the contour of the hub motor spindle.

[0011] As a further improvement of the present invention, a through groove is provided on the base plate, and the hub motor passes through the through groove and forms a rolling engagement with the annular track.

[0012] As a further improvement of the present invention, the base plate is arranged above the annular track and is parallel to and spaced apart from the upper side of the annular track; the guide wheels are symmetrically arranged in the track grooves on both sides of the annular track, and the wheel core of the guide wheel is perpendicular to the shaft core of the hub motor main shaft.

[0013] The present invention also provides a sorting machine that is reliable in operation and has low maintenance costs.

[0014] A sorting machine includes a circular track, a sorting trolley, and the aforementioned drive device. The drive device is connected to the sorting trolley and drives the sorting trolley to move along the circular track. A copper busbar for supplying power to a hub motor is provided on the circular track.

[0015] As a further improvement of the present invention, the sorting cart is provided in multiple groups, and the drive device in each sorting cart includes at least one drive device with a hub motor; the base plates of adjacent drive devices are hinged together by connecting rods.

[0016] The present invention has the following beneficial effects:

[0017] 1. In this invention, after the hub motor is powered on, the rotating hub rubs against the circular track and drives the base plate to move along the circular track, thereby providing power for the displacement of the sorting trolley on the circular track. Compared with the traditional chain drive, it not only avoids the noise generated by mechanical impact during the operation of the chain and sprocket, improving environmental comfort, but also the sorting trolley using this drive device has strong individual independence, and the failure of a single drive device will not affect the overall operation.

[0018] 2. In this invention, because the hub motor drive device adopts a modular design, when a motor of the drive device fails, it will not affect the normal operation of the system. The faulty motor can be replaced when the system is idle. The structure is simple and easy to replace quickly, which helps to reduce downtime and maintenance costs.

[0019] 3. In this invention, the guide wheels roll along both sides of the circular track, which can make stable operation in the arc section of the circular track, that is, it can easily turn. It is also suitable for one sorting trolley to drive multiple sorting trolleys to turn, and the smaller the distance between two adjacent sorting trolleys, the smaller the turning radius. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the drive device in this invention.

[0021] Figure 2 This is a schematic diagram of the drive device from another perspective in this invention.

[0022] Figure 3 This is a schematic diagram of the upward swinging state of the swing arm in this invention.

[0023] Figure 4 for Figure 3 Enlarged view of a portion of region A in the middle.

[0024] Figure 5 This is a schematic diagram of the swing arm structure in this invention.

[0025] Figure 6 This is a schematic diagram of the pressure plate in the present invention.

[0026] Figure 7 This is a schematic diagram of the top structure of the base plate in this invention.

[0027] Figure 8 This is a schematic diagram of the bottom structure of the base plate in this invention.

[0028] Figure 9 This is a schematic diagram of the sorting machine in this invention.

[0029] Figure 10 for Figure 9 Enlarged view of a portion of region B in the middle.

[0030] In the diagram: Ⅰ. Circular track; Ⅱ. Track groove; Ⅲ. Sorting trolley; Ⅳ. Copper busbar; Ⅴ. Connecting rod; 10. Hub motor; 11. Hub motor spindle; 20. Base plate; 21. Through groove; 30. Guide wheel; 40. Pressure arm; 41. First connecting plate; 42. Second connecting plate; 43. Notch; 44. First mounting groove; 45. Second mounting groove; 46. Pressure plate; 47. First pin; 48. Second pin; 50. Screw; 51. Compression spring; 52. Nut; 53. First washer; 54. Second washer; 55. Sleeve. Detailed Implementation

[0031] The technical solutions of the embodiments of this specification will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of this specification and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of this specification.

[0032] For ease of description, the up, down, left, and right directions are defined based on the normal working state of the sorting machine.

[0033] Example 1

[0034] Please see Figures 1-8 As shown, a hub motor drive device includes a hub motor 10 arranged on an annular track I and being independently detachable. The hub motor 10 is mounted on a base plate 20 and drives the base plate 20 to move along the annular track I. A guide wheel 30 is provided on one side of the base plate 20 and rolls along the annular track I. A pressure arm 40 is provided on the other side of the base plate 20, and a first mounting groove 44 for connecting the hub motor main shaft 11 is provided on the pressure arm 40.

[0035] The guide wheel 30 provides support and guidance for the drive device. Through the cooperation between the guide wheel 30 and the annular track I, the base plate 20 and the annular track I maintain a relative position. At the same time, the rolling of the guide wheel 30 reduces the movement resistance between the drive device and the guide wheel 30. The outer wheel surface of the hub motor 10 maintains a certain positive pressure with the surface of the annular track I. After the hub motor 10 is powered on, its outer rubber-coated wheel will rotate, thereby providing the drive device with the power to move forward. The pressure arm 40 is used to install the hub motor spindle 11. After it is hinged to the base plate 20, it forms a swingable arm. When the free end of the pressure arm 40 is connected to the base plate 20 through the screw 50, the tightness of the screw 50 is adjusted to provide a certain positive pressure to the hub motor 10, ensuring that the rotating hub generates friction with the annular track I and drives the base plate 20 to move along the annular track I.

[0036] In the above scheme, after the hub motor 10 is powered on, the rotating hub rubs against the annular track I and drives the base plate 20 to move along the annular track I, thereby providing power for the displacement of the sorting trolley III on the annular track I. Compared with the traditional chain drive, it not only overcomes the drawbacks of the chain drive, but also the sorting trolley III using this drive device has strong individual independence. The failure of a single drive device will not affect the overall operation.

[0037] like Figure 5 As shown, the specific structure of the pressure arm 40 is as follows: one end of the two pressure arms 40 is connected by a first connecting plate 41, and the first connecting plate 41 is fixed on a first pin 47. The first pin 47 is rotatably mounted on the base plate 20, and the shaft core of the first pin 47 is parallel to the upper side of the base plate 10. The other end of the two pressure arms 40 is connected by a second connecting plate 42, and a notch 43 is provided on the side of the second connecting plate 42 away from the hub motor 10 to limit the swing of the second connecting plate 42. The pressure arms 40 can swing up and down with the first pin 47 as the central axis, that is, the two swing arms 40 can swing upward to leave the hub motor 10, which is beneficial to the disassembly and assembly of the hub motor 10. In addition, the notch 43 is provided to fix the swing arms 40 so that the hub motor 10 is stably mounted on the base plate 20.

[0038] like Figures 1-4 As shown, a second pin 48 is rotatably mounted on the base plate 20, and the second pin 48 is parallel to the first pin 47. A screw 50 perpendicular to the second pin 48 is fixed on the second pin 48. A nut 52 is rotatably mounted on the top of the screw 50. A compression spring 51 is sleeved on the screw 50 below the nut 52. When the screw 50 swings into the notch 43, the compression spring 51 provides elastic force to drive the second connecting plate 42 to move closer to the base plate 20. The cooperation of the screw 50, nut 52, compression spring 51 and second connecting plate 42 realizes the fixation of the free end of the pressure arm 40, so that the hub motor 10 is stably mounted on the base plate 20. By rotating the nut 52, the compression of the compression spring 51 is changed, thereby changing the pressure of the compression spring 51 on the free end of the pressure arm 40, which facilitates the adjustment of pressure. In addition, the pressure provided by the compression spring 51 has a certain buffering effect, avoiding the impact of sudden excessive pressure on the pressure arm 40 during the pressure adjustment process.

[0039] A first washer 53 is provided between the nut 52 and the compression spring 51, and a second washer 54 is provided between the second connecting plate 42 and the compression spring 51. The first washer 53 and the second washer 54 respectively contact the two ends of the compression spring 51, providing support points for the connection of the compression spring 51 and realizing the constraint on the two ends of the compression spring 51.

[0040] like Figures 1-4As shown, to protect the compression spring 51, a sleeve 55 is provided between the first washer 53 and the second washer 54. The length of the sleeve 55 is calculated based on the positive pressure required by the hub motor 10. The compression spring 51 is compressed to the end face of the sleeve 55 to meet the design requirements, which facilitates installation and subsequent maintenance.

[0041] like Figure 5 , Figure 6 As shown, the specific structural features between the hub motor main shaft 11 and the pressure arm 40 are as follows: the pressure arm 40 is provided with a first mounting groove 44 for mounting the hub motor main shaft 11, the pressure arm 40 is connected to a pressure plate 46 by screws at the first mounting groove 44, the pressure plate 46 is provided with a second mounting groove 45 for the hub motor main shaft 11 to pass through, and the contour of the groove area enclosed by the first mounting groove 44 and the second mounting groove 45 is adapted to the contour of the hub motor main shaft 11.

[0042] In addition, when replacing the hub motor 10, loosen the pressure plate 46, screw 50 and compression spring 51, and the pressure arm 40 swings upward to provide more space for removing the motor.

[0043] like Figure 7 , Figure 8 As shown, a through groove 21 is provided on the base plate 20, and the hub motor 10 passes through the through groove 21 and forms a rolling engagement with the annular track I; the hub part of the hub motor 10 is located above the base plate 20, and part of it is located below the base plate 20.

[0044] like Figure 1 , Figure 2 As shown, the base plate 20 is positioned above the annular track I and is arranged parallel to and spaced apart from the upper side of the annular track I; the guide wheels 30 are symmetrically arranged in the track grooves II on both sides of the annular track I, and the wheel core of the guide wheel 30 is perpendicular to the shaft core of the hub motor main shaft 11; through the cooperation between the guide wheels 30 and the track grooves II on both sides of the annular track I, and the cooperation between the hub motor 10 hub and the upper side of the annular track I, the base plate 20 is prevented from deflecting, so that the drive device runs stably along the annular track I; at the same time, the load-bearing capacity of the sorting trolley III is also stronger.

[0045] The track grooves II on both sides of the aforementioned circular track I have a V-shaped cross section; the guide wheel 30, which matches the circular track I, is a conical wheel, which provides support and positioning for the horizontal and stable operation of the drive device.

[0046] Example 2

[0047] like Figure 9 , Figure 10As shown, a sorting machine includes a circular track I, a sorting trolley III, and the aforementioned drive device. The drive device is connected to the sorting trolley III and drives the sorting trolley III to move along the circular track I. A copper busbar IV for supplying power to the hub motor 10 is provided on the circular track I.

[0048] The sorting cart III is set up in multiple groups, and each group of sorting cart III includes at least one drive device with a hub motor 10 in its drive device; the base plates 20 of adjacent drive devices are hinged together by connecting rod V.

[0049] In the above, the sorting carts III are arranged sequentially along the circular track I at equal pitches, with each group consisting of n sorting carts III (the number of n varies depending on the application scenario, but is generally taken as n=6). Each group of sorting carts III contains one driven sorting cart III and (n-1) undriven sorting carts III. That is, the aforementioned hub motor 10 drive device includes a base plate 20 without hub motor 10, or only one hub motor 10 in each group of sorting carts III is powered on. In addition, the base plates 20 of the drive devices on adjacent sorting carts III are connected. The components are hinged together via connecting rod V, and each sorting trolley III moves together with the sorting trolley III driven by the head. The connecting rod V is hinged to the base plate 20, which has a certain degree of flexibility, and the connecting rod V itself has good rigidity, so that the sorting trolley III can smoothly drive the sorting trolley III behind it to move and can make smooth turns. Therefore, when the hub motor 10 of one drive unit fails, it will not affect the normal operation of the system. The faulty motor can be replaced when there is no time, avoiding the dilemma of overall shutdown for maintenance.

[0050] In the description of this application, terms such as "front," "rear," "inner," "outer," "upper," "lower," "left," and "right" are used only to indicate orientation or positional relationship for the convenience of describing the embodiments and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this specification.

[0051] The embodiments described above are merely preferred embodiments of this specification and are not intended to limit the scope of this specification. Any modifications and improvements made by those skilled in the art to the technical solutions of this specification without departing from the spirit of this specification should fall within the protection scope defined by the claims of this specification.

Claims

1. A hub motor drive device, characterized in that, The device includes a hub motor (10) arranged on a circular track (Ⅰ) and is independently detachable. The hub motor (10) is mounted on a base plate (20) and drives the base plate (20) to move along the circular track (Ⅰ). A guide wheel (30) is provided on one side of the base plate (20) and rolls along the circular track (Ⅰ). A pressure arm (40) is provided on the other side of the base plate (20), and a first mounting groove (44) for connecting the hub motor main shaft (11) is provided on the pressure arm (40). One end of the two pressure arms (40) is connected by a first connecting plate (41), and the first connecting plate (41) is fixed on a first pin (47). The first pin (47) is rotatably mounted on the base plate (20), and the shaft of the first pin (47) is parallel to the side of the base plate. The other end of the two pressure arms (40) is connected by a second connecting plate (42), and a notch (43) is provided on the side of the second connecting plate (42) away from the hub motor (10) to limit the swing of the second connecting plate (42). A second pin (48) is rotatably mounted on the base plate (20), and the second pin (48) is parallel to the first pin (47). A screw (50) perpendicular to the second pin (48) is fixed on the second pin (48). A nut (52) is rotatably mounted on the top of the screw (50). A compression spring (51) is sleeved on the screw (50) below the nut (52). When the screw (50) swings into the notch (43), the compression spring (51) provides elastic force to drive the second connecting plate (42) to move toward the base plate (20).

2. The hub motor drive device according to claim 1, characterized in that, A first washer (53) is provided between the nut (52) and the compression spring (51), and a second washer (54) is provided between the second connecting plate (42) and the compression spring (51).

3. The hub motor drive device according to claim 2, characterized in that, A sleeve (55) is also provided between the first gasket (53) and the second gasket (54).

4. The hub motor drive device according to claim 1, characterized in that, The pressure arm (40) is connected to a pressure plate (46) by screws at the first mounting groove (44). The pressure plate (46) has a second mounting groove (45) for the hub motor main shaft (11) to pass through. The contour of the groove area enclosed by the first mounting groove (44) and the second mounting groove (45) is adapted to the contour of the hub motor main shaft (11).

5. The hub motor drive device according to claim 1, characterized in that, A through groove (21) is provided on the base plate (20), and the hub motor (10) passes through the through groove (21) and forms a rolling fit with the annular track (Ⅰ).

6. The hub motor drive device according to claim 1 or 5, characterized in that, The base plate (20) is positioned above the annular track (I) and is arranged parallel to the upper side of the annular track (I); the guide wheels (30) are symmetrically arranged in the track grooves (II) on both sides of the annular track (I), and the wheel core of the guide wheel (30) is perpendicular to the shaft core of the hub motor main shaft (11).

7. A sorting machine, characterized in that, It includes a circular track (Ⅰ), a sorting trolley (Ⅲ), and a drive device according to any one of claims 1 to 6, the drive device being connected to the sorting trolley (Ⅲ) and driving the sorting trolley (Ⅲ) to move along the circular track (Ⅰ), the circular track (Ⅰ) being provided with a copper busbar (Ⅳ) for supplying power to the hub motor (10).

8. The sorting machine according to claim 7, characterized in that, The sorting cart (Ⅲ) is set up in multiple groups, and each sorting cart (Ⅲ) includes at least one drive device with a hub motor (10) in its drive device; the base plates (20) of adjacent drive devices are hinged together by a connecting rod (V).

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