Electric tilting drive and electric tilting system

Abstract

The application belongs to the field of civil aviation logistics application, and specifically discloses an electric tilting driving device and an electric tilting system, wherein the electric tilting driving device comprises a driving tilting support, a guide plate rotatably connected to the driving tilting support, and a driving assembly for driving the guide plate to rotate, and a guide groove is formed in the guide plate; the guide groove is closed in the circumferential direction, and the guide groove comprises a middle guide part, a tilting guide part and a limiting guide part; the guide wheels are two and are arranged to control the guide plate to deflect in different directions, respectively, the rotation axis of the shift fork and the rotation axis of the guide plate are parallel and located in the same vertical plane, and the movement track of the guide wheels revolving around the rotation axis of the shift fork and the movement track of the tilting guide part revolving around the rotation axis of the guide plate have overlapping parts. By adopting the scheme, the problems of the existing electric tilting device, such as inflexible tilting or return, jamming and blocking, can be solved.

Description

Technical Field

[0001] This invention belongs to the field of civil aviation logistics applications, and specifically relates to an electric tilting drive device and an electric tilting system. Background Technology

[0002] With the rapid growth of passenger and cargo throughput at my country's civil aviation airports, high-speed automatic baggage sorting systems have been widely used. As the core motion mechanism of high-speed automatic baggage sorting systems, electric tilting devices have the function of quickly flipping the tray to achieve rapid baggage sorting.

[0003] In the prior art, patent CN201310122749.9 discloses a high-speed automatic sorting machine for tipping luggage, which specifically discloses an electric tipping device, including a guide mechanism for driving the tray to tip or reset. The guide mechanism includes a rotatable fork, a guide wheel connected to the fork, and a guide plate connected to the tray. The guide plate has a guide groove, and the guide wheel is located in the guide groove. The fork drives the guide wheel to rotate, and the guide wheel moves along the guide groove, thereby driving the guide plate to tip or reset.

[0004] In the above scheme, the guide groove includes three parts: a left guide groove, a middle guide groove, and a right guide groove. The left and right guide grooves are symmetrically arranged on both sides of the middle guide groove and are arc-shaped grooves that are open at both the top and bottom. Because the top and bottom of the left and right guide grooves are open, the guide wheel will sometimes enter and exit the left and right guide grooves as it rotates with the fork. When the guide wheel passes through the openings at the top and bottom of the left and right guide grooves, it is very easy for it to get stuck or obstructed. Typically, the entire tray-type high-speed automatic baggage handling system contains hundreds of electric tilting devices. If any of these electric tilting devices experiences the aforementioned stuck or obstructed problem, it may cause missorting or incorrect sorting of baggage, and in severe cases, it may cause the entire baggage handling system to collapse. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an electric tilting drive device and an electric tilting system to solve the problem that the guide wheels are prone to jamming or obstruction when entering or exiting the slots at the upper and lower ends of the guide groove.

[0006] According to embodiments of the present invention, the present invention adopts the following technical solution:

[0007] An electric tilting drive device includes an active tilting bracket, a guide plate rotatably connected to the active tilting bracket, and a drive assembly for driving the guide plate to rotate. The guide plate has a guide groove. The drive assembly includes a guide wheel that moves along the guide groove and drives the guide plate to rotate through the guide groove, and a fork for mounting the guide wheel. The fork is rotatably mounted. The guide groove is circumferentially closed and includes a central guide section and tilting guide sections and limiting guide sections respectively connected to both sides of the central guide section. Both the tilting guide section and the limiting guide section are mirror images of the vertical plane containing the rotation axis of the guide plate. The design has two sets: the rotation axis of the shift fork and the rotation axis of the guide plate are parallel and located in the same vertical plane; two guide wheels are eccentrically set on the shift fork and symmetrically arranged; the two guide wheels are used to control the guide plate to deflect in different directions; the tilting guide part restricts the tilting trajectory of the guide plate by cooperating with one of the guide wheels; the motion trajectory of the guide wheel revolving around the rotation axis of the shift fork and the motion trajectory of the tilting guide part revolving around the rotation axis of the guide plate have an overlapping part; the limiting guide part is used to lock the rotation range of the other guide wheel revolving around the rotation axis of the shift fork.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] In this design, the guide groove is completely enclosed, eliminating the issue of guide wheels entering and exiting the groove, thus avoiding potential jamming or obstruction. Specifically, in this design, when the guide wheels revolve around the rotation axis of the shift fork, one of the guide wheels moves within the tilting guide section, thereby causing the guide plate to deflect. Specifically, when the trajectory of the guide wheel revolving around the rotation axis of the shift fork and the trajectory of the tilting guide section revolving around the rotation axis of the guide plate overlap, the guide wheel can limit the deflection trajectory of the guide plate through the tilting guide section, achieving tilting or resetting of the guide plate. Furthermore, the tilting guide section, the limiting guide section, and the guide wheels are symmetrically arranged in two sets, allowing the guide plate to tilt or reset in opposite directions.

[0010] Furthermore, the rotation axis of the guide plate is located directly below the rotation axis of the shift fork, the tilting guide is located above the middle guide, and the limiting guide is located below the middle guide.

[0011] Furthermore, the tilting guide includes a locking section, a tilting section, and a limiting section connected sequentially from top to bottom. The inner wall of the limiting section is an arc shape concentric with the rotation axis of the shift fork.

[0012] Furthermore, the inner wall of the tilting section is arc-shaped, with the orientation opposite to that of the inner wall of the limiting section.

[0013] Furthermore, the maximum angle of rotation of the guide plate is when the trajectory of the closed end of the limiting guide revolving around the rotation axis of the guide plate coincides with the trajectory of the guide wheel revolving around the rotation axis of the shift fork.

[0014] Furthermore, the guide wheel is rotatably connected to the shift fork.

[0015] Furthermore, the drive assembly also includes a drive component for driving the shift fork to rotate. The drive component includes a main shaft rotatably connected to the active tilting bracket, a drive gear fixed on the main shaft, and a driven gear meshing with the drive gear. The shift fork and the driven gear are coaxially fixed.

[0016] Furthermore, the rotation axis of the main spindle and the rotation axis of the guide plate are collinear.

[0017] Furthermore, it also includes a tilt reset detection assembly, which includes a positioning element mounted on the guide plate and a detection element for detecting the position of the positioning element.

[0018] According to embodiments of the present invention, the present invention also employs the following technical solutions:

[0019] An electric tilting system includes a pallet, an active part for driving the pallet to tilt, and a driven part for supporting the pallet. The active part includes an electric tilting drive device. The pallet is mounted on top of a guide plate. The driven part includes a driven tilting bracket and a support plate rotatably connected to the driven tilting bracket. The rotation axis of the support plate is collinear with the rotation axis of the guide plate. The top of the support plate is connected to the pallet.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The active part is responsible for driving the pallet to tilt or reset, while the driven part only provides support. All core components are concentrated in the active part, resulting in high integration. Furthermore, the active and driven parts can be installed separately with the pallet, offering high flexibility in installation location and making it suitable for pallets of various sizes. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the electric tilting system according to an embodiment of the present invention.

[0023] Figure 2 for Figure 1 The front view.

[0024] Figure 3 This is a front view of the electric tilting drive device according to an embodiment of the present invention.

[0025] Figure 4 for Figure 3 A schematic diagram of the drive component.

[0026] Figure 5 for Figure 3 A schematic diagram showing the connection between the guide wheel and the guide plate.

[0027] Figure 6 This is a schematic diagram of the initial state of the guide wheel and guide plate.

[0028] Figure 7 This is a schematic diagram showing the state of the guide wheel moving within the limit section.

[0029] Figure 8 This is a schematic diagram showing the movement of the guide wheel within the tilting section.

[0030] Figure 9 This is a schematic diagram showing the guide plate at its maximum tilt angle.

[0031] Figure 10 This is a schematic diagram illustrating an alternative design for the guide wheel and guide plate.

[0032] In the diagram: 1. Active tilting bracket; 2. Driven tilting bracket; 3. Guide plate; 4. Mounting plate; 5. Support plate; 6. Motor; 7. Guide groove; 8. Second mounting bracket; 9. First mounting bracket; 10. Proximity switch; 11. Sensor probe; 12. Shift fork; 13. Drive gear; 14. Driven gear; 15. Main shaft; 16. Guide wheel; 17. Mounting hole; 18. Limiting section; 19. Tilting section; 20. Locking section; 21. Tilting guide part; 22. Middle guide part; 23. Limiting guide part. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings, and specific embodiments are given.

[0034] like Figure 3 , Figure 4 , Figure 5 As shown, the electric tilting drive device includes an active tilting bracket 1, a guide plate 3 rotatably connected to the active tilting bracket 1, and a drive assembly for driving the guide plate 3 to rotate. The guide plate 3 has a guide groove 7, which is circumferentially closed. Specifically, the guide groove 7 includes a central guide part 22 and tilting guide parts 21 and limiting guide parts 23 respectively connected to both sides of the central guide part 22. The tilting guide parts 21 and limiting guide parts 23 are designed in two sets with the vertical plane containing the rotation axis of the guide plate 3 as a mirror plane.

[0035] The drive assembly includes a guide wheel 16 that moves along the guide groove 7 and drives the guide plate 3 to rotate through the guide groove 7, a shift fork 12 for mounting the guide wheel 16, and a drive component for driving the shift fork 12 to rotate. Specifically, the drive component includes a main shaft 15 rotatably connected to the active tilting bracket 1, a drive gear 13 fixed on the main shaft 15, and a driven gear 14 meshing with the drive gear 13. The shift fork 12 and the driven gear 14 are coaxially fixed. In actual use, when the main shaft 15 rotates, it can drive the guide plate 3 through the meshing of the drive gear 13 and the driven gear 14. The fork 12 on the driven gear 14 rotates. The rotation axis of the fork 12 is coaxial with that of the driven gear 14. The fork 12 is directly fixed to the end face of the driven gear 14. During the rotation of the driven gear 14, the torque is directly transmitted to the fork 12. Therefore, there is no need to set a shaft to connect the driven gear 14 and the fork 12. Thus, there is no need to cut a slot at the central axis of the driven gear 14 to connect with the shaft. This allows the central axis of the driven gear 14 to only perform the function of rotation and not transmit torque, reducing the grooving process and avoiding the problem of easy damage at the grooving point.

[0036] like Figure 6As shown, in the initial state, the rotation axis of the shift fork 12 and the rotation axis of the guide plate 3 are parallel and located in the same vertical plane. In this embodiment, the rotation axis of the guide plate 3 is located directly below the rotation axis of the shift fork 12, and the rotation axis of the guide plate 3 and the rotation axis of the main shaft 15 are collinear. In this scheme, during the design process, it is only necessary to ensure that the rotation axis of the shift fork 12 and the rotation axis of the guide plate 3 cooperate with each other, so that the guide wheel 16 can move in the guide groove 7 and drive the guide plate 3 to tilt or reset. Then, the appropriate size of the driving gear 13 and driven gear 14 can be selected for assembly. That is, in this scheme, it is only necessary to ensure that the two rotation axes cooperate. Compared with the electric tilting drive device that usually requires the design of multiple rotation axes to cooperate in the prior art, the design difficulty is reduced and the processing difficulty is also lower. In specific processing, a first mounting bracket 9 and a second mounting bracket 8 are fixed on both sides of the guide plate 3 on the active tilting bracket 1. The driving gear 13 and the driven gear 14 are rotatably connected to the first mounting bracket 9. The motor 6 is fixed on the second mounting bracket 8. The guide plate 3 has a mounting hole 17. The main shaft 15 passes through the mounting hole 17 (in actual design, the outer diameter of the main shaft 15 is smaller than the inner diameter of the mounting hole 17, or a bearing is installed between the main shaft 15 and the mounting hole 17, so that the rotation of the main shaft 15 and the guide plate 3 does not interfere with each other) and is connected to the output shaft of the motor 6. Of course, a reducer, as used in the prior art, can also be added to control the rotation speed of the main shaft 15. The two ends of the main shaft 15 are rotatably connected to the first mounting bracket 9 and the second mounting bracket 8 respectively through bearings to provide relatively stable support for the main shaft 15. In the actual design process, to ensure the stability of the guide plate 3's rotation, a mounting plate 4 is rotatably connected to the active tilting bracket 1. The mounting plate 4 and the guide plate 3 are bolted together. The mounting plate 4 does not rotate actively; however, when the guide plate 3 rotates, it can drive the mounting plate 4 to rotate. The first mounting bracket 9 is located between the mounting plate 4 and the guide plate 3, thus forming a box-like structure with more stable movement and stronger resistance to external forces. Furthermore, by placing the motor 6 (or reducer) and other structures on the second mounting bracket 8, the structural elements between the mounting plate 4 and the guide plate 3 are reduced, resulting in a more compact structure for the guide plate 3 and the mounting plate 4.

[0037] Two guide wheels 16 are provided and control the guide plate 3 to deflect in different directions respectively. The guide wheels 16 are eccentrically set on the shift fork 12 and the two guide wheels 16 are symmetrically arranged. Specifically, the guide wheels 16 are rotatably connected to the shift fork 12, so that when the guide wheels 16 move in the guide groove 7, the two are rolling friction, which makes it easier for the guide wheels 16 to move in the guide groove 7.

[0038] In this embodiment, since the rotation axis of the guide plate 3 is located directly below the rotation axis of the shift fork 12, the tilting guide part 21 is located above the middle guide part 22. The tilting guide part 21 restricts the tilting trajectory of the guide plate 3 by cooperating with one of the guide wheels 16. Specifically, the motion trajectory of the guide wheel 16 revolving around the rotation axis of the shift fork 12 and the motion trajectory of the tilting guide part 21 revolving around the rotation axis of the guide plate 3 have an overlapping portion. Figure 6 Taking the example shown, the dotted ring line represents the trajectory of the guide wheel 16 revolving around the rotation axis of the shift fork 12. During the counter-clockwise rotation of the guide wheel 16, the guide plate 3 also rotates counter-clockwise, and the tilting guide 21 always overlaps with this dotted ring line. In actual design, the tilting guide 21 includes a locking section 20, a tilting section 19, and a limiting section 18 connected sequentially from top to bottom. The inner wall of the limiting section 18 is an arc concentric with the rotation axis of the shift fork 12, and the inner wall of the tilting section 19 is an arc facing the opposite direction to the inner wall of the limiting section 18.

[0039] The limiting guide part 23 is located below the middle guide part 22. The limiting guide part 23 is used to lock the rotation range of the other guide wheel 16 around the rotation axis of the shift fork 12. Specifically, when the motion trajectory of the closed end of the limiting guide part 23 around the rotation axis of the guide plate 3 coincides with the motion trajectory of the guide wheel 16 around the rotation axis of the shift fork 12, it is the maximum angle of rotation of the guide plate 3. Figure 6 As shown in the example, the dotted ring line represents the trajectory of the guide wheel 16 revolving around the rotation axis of the shift fork 12. During the counter-clockwise rotation of the guide wheel 16, the guide plate 3 also rotates counter-clockwise. When the closed end of the limiting guide part 23 rotates to coincide with the dotted ring line, the guide plate 3 is at its maximum tilting angle (see...). Figure 9 (As shown in the diagram). In the actual design process, the limiting guide part 23 is an inclined straight groove.

[0040] In specific use, such as Figure 5 , Figure 6 As shown, when the two rollers of the shift fork 12 are in the horizontal position, the entire electric tilting drive device is also in the horizontal state (initial position). Since the rotation axis of the shift fork 12 is not collinear with the rotation axis of the guide plate 3, and the inner wall of the limiting section 18 is an arc concentric with the rotation axis of the shift fork 12, the shift fork 12 is a stable structure in the horizontal position. Even if the guide plate 3 is subjected to a rotational external force, it cannot tilt, thus realizing the horizontal position self-locking function of the electric tilting drive device.

[0041] For ease of subsequent description, the guide wheel 16 on the left side in the horizontal state will be referred to as guide wheel A, and the guide wheel 16 on the right side will be referred to as guide wheel B. Taking the guide plate 3 tilting to the left as an example, guide wheel B, along with the tilting guide part 21 and the limiting guide part 23 on the right side, provide the driving force. Guide wheel B rotates with the shift fork 12, and its movement trajectory is circular (see...). Figure 6 The circular dashed line shown in the image), as Figure 7 As shown, when guide wheel B is within the limit section 18, guide plate 3 remains stationary, enabling no-load start-up of motor 6, protecting motor 6, and accelerating the start-up time of motor 6. Figure 8 As shown, when guide wheel B enters the tilting section 19, it begins to tilt guide plate 3 to the left. At this time, guide wheel A also slides out of the left limiting section 18 and enters the middle guide section 22, where it has no limiting effect on guide plate 3. As the shift fork 12 continues to rotate, guide wheel A enters the right limiting guide section 23, and guide wheel B also enters the locking section 20 of the right tilting guide section 21. Figure 9 As shown, when guide wheel B rotates to its highest point, it is exactly within the locking section 20 of the tilting guide 21, and guide wheel A is also exactly at the closed end of the limiting guide 23. At this time, the guide plate 3 is locked, and the guide plate 3 reaches its maximum tilting angle. When returning to its original position, the motor 6 reverses, which causes the shift fork 12 to drive the guide wheel 16 to reverse, thereby driving the guide plate 3 to return to its original position.

[0042] In the above embodiment, taking the rotation axis of the guide plate 3 as being directly below the rotation axis of the shift fork 12 as an example, in actual design, the rotation axis of the guide plate 3 can also be directly above the rotation axis of the shift fork 12, such as... Figure 10 As shown, reversing the entire electric tilting drive device also achieves the tilting of the guide plate 3. In this case, the tilting guide part 21 is located below the middle guide part 22, and the limiting guide part 23 is located above the middle guide part 22. Compared to this solution, where the rotation axis of the guide plate 3 is located directly below the rotation axis of the shift fork 12, this design raises the rotation axis of the guide plate 3, requiring a larger tilting space at the bottom of the guide plate 3, and consequently, a larger installation space.

[0043] In another embodiment of the invention, a tilt reset detection component is also included, such as... Figure 3As shown, the tilting and resetting detection assembly includes a positioning component mounted on the guide plate 3 and a detection component for detecting the position of the positioning component. Specifically, the positioning component includes a sensing probe 11 fixed on the guide plate 3 (in actual design, a metal protrusion fixed on the guide plate 3 can be selected), and the detection component includes a proximity switch 10 for detecting the sensing probe 11 (in the design process, the selection is based on the material of the sensing probe 11; for example, when the sensing probe 11 is made of metal, an inductive proximity switch 10 from the prior art is selected). The proximity switch 10 is mounted on the second mounting bracket 8. During the tilting process of the guide plate 3, the sensing probe 11 gradually moves away from the proximity switch 10 as the guide plate 3 tilts. During the resetting process of the guide plate 3, the sensing probe 11 gradually moves closer to the proximity switch 10. When the distance between the sensing probe 11 and the proximity switch 10 reaches a set distance, the proximity switch 10 is triggered, indicating that the guide plate 3 has completed the resetting process and the motor 6 is turned off.

[0044] In another embodiment of the present invention, an electric tilting system is also disclosed, such as Figure 1 , Figure 2 As shown, the system includes a pallet (not shown), an active part for driving the pallet to tilt, and a driven part for supporting the pallet. The active part includes an electric tilting drive device. The pallet is mounted on top of the guide plate 3 and the mounting plate 4. The driven part includes a driven tilting bracket 2 and a support plate 5 rotatably connected to the driven tilting bracket 2. The rotation axis of the support plate 5 is collinear with the rotation axis of the guide plate 3. The tops of the mounting plate 4, the guide plate 3, and the support plate 5 are flush. The top of the support plate 5 is connected to the pallet. The pallet is used to place luggage or other items. The active and driven parts are located on both sides of the pallet to support it. The active part is responsible for driving the pallet to tilt or reset, while the driven part only provides support. All core components are concentrated in the active part, resulting in high integration. Furthermore, the active and driven parts are installed separately, allowing for high flexibility in installation position and making it suitable for pallets of various sizes.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An electric tilting drive device, comprising a driving tilting bracket, a guide plate rotatably connected to the driving tilting bracket, and a drive assembly for driving the guide plate to rotate, the guide plate is provided with a guide groove, the drive assembly comprises a guide wheel moving along the guide groove and driving the guide plate to rotate through the guide groove, and a shift fork for mounting the guide wheel, the shift fork is rotatably arranged; characterized in that: the guide groove is circumferentially closed, the guide groove comprises a middle guide part, and a tilting guide part and a limiting guide part respectively communicated on both sides of the middle guide part, the tilting guide part and the limiting guide part are both designed with two groups of mirror image symmetry with the vertical plane in which the rotation axis of the guide plate is located; the rotation axis of the shift fork and the rotation axis of the guide plate are parallel and located in the same vertical plane, the guide wheel is eccentrically arranged on the shift fork and is symmetrically provided with two guide wheels, and the two guide wheels are respectively used for controlling the guide plate to deflect towards different directions; the tilting guide part limits the tilting track of the guide plate through cooperation with one of the guide wheels, the movement track of the guide wheel revolving around the rotation axis of the shift fork and the movement track of the tilting guide part revolving around the rotation axis of the guide plate have overlapping parts, the tilting guide part comprises a locking section, a tilting section and a limiting section communicated in sequence, and the inner wall of the limiting section is in the shape of an arc concentric with the rotation axis of the shift fork; the limiting guide part is used for locking the rotation range of the other guide wheel revolving around the rotation axis of the shift fork. the rotation axis of the guide plate is located directly below the rotation axis of the shift fork, the tilting guide part is located on the upper side of the middle guide part, the limiting guide part is located on the lower side of the middle guide part, and the locking section, the tilting section and the limiting section are sequentially arranged from top to bottom.

2. The power tipping drive arrangement of claim 1, characterized in that: the inner wall of the tilting section is in the shape of an arc opposite to the inner wall of the limiting section.

3. The power tipping drive arrangement of claim 2, characterized in that: when the movement track of the closed end of the limiting guide part revolving around the rotation axis of the guide plate and the movement track of the guide wheel revolving around the rotation axis of the shift fork coincide, it is the maximum angle of the rotation of the guide plate.

4. The power tipping drive of claim 2, wherein: the guide wheel is rotatably connected to the shift fork.

5. The power tipping drive of claim 1, wherein: the drive assembly further comprises a driving member for driving the shift fork to rotate, the driving member comprises a main shaft rotatably connected to the driving tilting bracket, a driving gear fixed on the main shaft, and a driven gear engaged with the driving gear, the shift fork and the driven gear are coaxially fixed.

6. The power tipping drive of claim 1, wherein: the rotation axis of the main shaft and the rotation axis of the guide plate are collinear.

7. The power tipping drive arrangement of claim 6, characterized by: further comprising a tilting reset detection assembly, the tilting reset detection assembly comprises a positioning member mounted on the guide plate and a detection member for detecting the position of the positioning member.

8. The power tipping drive of claim 1, wherein: comprising a tray, a driving part for driving the tray to tilt, and a driven part for supporting the tray, the driving part comprises the electric tilting drive device according to any one of claims 1-8, the tray is mounted on the top of the guide plate, the driven part comprises a driven tilting bracket and a support plate rotatably connected to the driven tilting bracket, the rotation axis of the support plate and the rotation axis of the guide plate are collinear, and the top of the support plate is connected with the tray.

9. An electrically powered roll-over system characterised in that: ​

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