A heavy-duty rotary stacker

Abstract

This invention discloses a heavy-duty rotary stacker crane. The crane has three rotational degrees of freedom and two translational degrees of freedom. A honeycomb-shaped connecting sleeve connects the transport component and the lifting component, ensuring minimal deformation under heavy loads. The transport component, with two rotational degrees of freedom, is driven and controlled by a servo motor, providing high motion and positional accuracy. The lifting component has one translational degree of freedom, driven by a servo motor connected to a planetary reducer, which in turn drives a screw drive. The screw drives the connecting sleeve, thereby moving the transport component up and down. The rotary component also has one rotational degree of freedom, driven by a servo motor to rotate the entire transport component, with precise control over the rotation angle. The rotary component and the track component share a translational degree of freedom, are located on a horizontal plane, and are driven by another servo motor to move the entire stacker crane on the track, with precise positioning and control of the crane's position on the track.

Description

Technical Field

[0001] This invention relates to a transport or storage device, and more particularly to a conveyor with a rotary structure. Background Technology

[0002] In smart factories, material handling and warehousing technologies are key and core technologies. In traditional production, material handling is a bottleneck. Material handling between workstations or in warehouses often requires large equipment with low precision and significant manual labor.

[0003] Most existing palletizers are robotic arm structures, offering reasonable flexibility. However, they rely on a gripping method to transport materials, which places high demands on the size of the materials and makes it difficult to transport larger items. For example, the "self-rotating rotary arm palletizer" described in announcement number CN110844613A has a suction cup structure at its end and is fixed to the ground or table, making it immobile. This makes it difficult to move materials between different workstations or storage areas, resulting in significant limitations, lower precision, fewer degrees of freedom, and poor flexibility. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of low motion control and precision, large errors, and negative impacts on production quality in current stacker crane operations. Another objective is to ensure motion and positioning accuracy during stacker crane handling while providing multiple degrees of freedom and high load capacity, thus improving operational flexibility. A further objective is to achieve precise motion control of the stacker crane using a servo motor, ensuring high accuracy and load-bearing capacity. Another objective is to incorporate a connecting sleeve between the handling and lifting components. Through its structural design, the connecting sleeve can bear the entire weight of the handling components without significant deformation under heavy loads, while maintaining a lightweight design, thus ensuring the load capacity of the stacker crane and the reliability of the connection between the handling and lifting components.

[0005] The present invention achieves the above-mentioned technical objectives through the following technical means.

[0006] A heavy-duty rotary stacker is characterized by comprising a conveying component, a lifting component, and a rotating moving component, wherein the conveying component and the lifting component are connected by a connecting sleeve. The weight of the conveying component is supported by the connecting sleeve, and the connecting sleeve and the lifting component are connected by a servo motor and a planetary reducer driving a screw drive, thereby propelling the conveying component to move up and down.

[0007] The connecting sleeve is rotatably connected to the conveying assembly, and is movably connected to the lifting assembly. The connecting sleeve moves in a first direction.

[0008] The rotating moving component and the lifting component are rotatably connected, and the rotating moving component is movably connected to the track component. The rotating moving component moves in a second direction. The first direction and the second direction can be perpendicular or not perpendicular, and the movement in the first direction can be an inclined movement.

[0009] Furthermore, the connecting sleeve consists of three layers. The part where the connecting sleeve connects to the conveying component is the bearing part. One end of the bearing part is an annular cage-shaped conveying connection part, and the other end is a semi-open mounting port. The semi-open mounting port is horseshoe-shaped on the upper and lower plates of the bearing part and has several through fixing holes, which can increase the connection strength between the semi-open mounting port and the screw.

[0010] Furthermore, near the semi-open mounting port, the support portion has vertically symmetrically arranged side mounting portions on both sides of the support portion. The side mounting portions are connected to the slider mounting plate, and a second support and a third support are respectively provided between the side mounting portions and the upper and lower surfaces of the support portion.

[0011] Preferably, the upper and lower plates of the bearing portion at one end of the transport connection portion are supported by vertical plates arranged at intervals, and a sandwich plate is provided at the other end of the bearing portion between the upper and lower plates.

[0012] The inner support, which is arranged parallel to the upper and lower plates of the sandwich panel and the bearing portion, is perpendicular to each other, and the sandwich panel and the inner support divide the bearing portion into several chambers.

[0013] Preferably, the connecting sleeve is provided with an outer shell, a slider mounting plate, and a bearing portion from the outside to the inside.

[0014] The slider mounting plate is plate-shaped, with one side being triangular and having a triangular opening in the middle. The other side is rectangular and is installed with the support part. One corner and two sides of the outer end face of the triangle are connected to the outer shell. The inner side of the slider mounting plate is provided with a connecting sleeve slider, and the connecting sleeve sliders are staggered in height.

[0015] Furthermore, the side plate of the outer shell is connected to the slider mounting plate, and the side plate at the connection position extends along the two sides of the upper corner of the triangle of the slider mounting plate, and the extended sides are fixedly connected to the slider mounting plate.

[0016] Preferably, an integral rotating assembly is provided between the lifting assembly and the rotating moving assembly. The integral rotating assembly has a drive pinion that is connected to a rotating motor. The rotating motor is fixedly mounted on the lifting assembly. A servo motor is vertically provided at the top of the lifting assembly. The servo motor accurately controls the lifting and lowering of the transport assembly and positions the transport assembly.

[0017] The overall rotating assembly is provided with a fixed gear plate, which is fixedly connected to the rotating moving assembly.

[0018] Furthermore, the rotating base of the lifting assembly is rotatably connected to the overall rotating assembly, and the fixed gear plate is mounted on the rotating guide plate.

[0019] A cavity is provided between the rotating base and the rotating guide disk. Circular support rollers are spaced apart at the bottom of the cavity. The annular surface of the side end of each support roller is tangent to both the inner surface of the rotating base and the outer surface of the rotating guide disk.

[0020] Preferably, the bottom of the rotating moving component is provided with a moving slider, and a displacement sensor is also provided on the rotating moving component to measure the distance the stacker moves and assist in positioning the current position of the stacker.

[0021] The track assembly is provided with a guide rail, and the movable slider is sleeved on the guide rail. Several position detection devices are provided at certain intervals on the outside of the guide rail to detect the current position of the stacker and whether it has reached the designated position.

[0022] Preferably, the conveying assembly has a first-stage rotating part and a second-stage rotating part, a rotating connection part is provided between the first-stage rotating part and the second-stage rotating part, and the second-stage rotating part is connected to the connecting sleeve.

[0023] Each rotating part of the conveying assembly is equipped with a servo motor. All servo motors are controlled by a control device inside the stacker. An angular displacement sensor is installed on each rotating part. The data from the angular displacement sensor is transmitted to the control device in real time. The control device calculates the current position of the conveying assembly and the load end of the conveying assembly.

[0024] The present invention has the following gain effects:

[0025] On the one hand, while existing stacker cranes can rotate and lift materials, the connection between their sliding arm and swing arm is difficult to withstand large loads. The stacker crane of this invention features a honeycomb-shaped connecting sleeve between the handling component and the lifting component, and the connecting sleeve is securely and reliably fixed to both components. The connecting sleeve can bear the entire weight of the handling component without significant deformation under heavy loads, and it is lightweight, thus ensuring the load capacity of the stacker crane and the reliability of the connection between the handling component and the lifting component.

[0026] On the other hand, the stacker of the present invention has three rotational degrees of freedom and two translational degrees of freedom, and the conveying component also has two rotational degrees of freedom, resulting in high flexibility and a large range of motion. The lifting component drives the connecting sleeve, which in turn drives the movement of the conveying component. The lifting component has a translational degree of freedom and is perpendicular to the horizontal plane. A screw drive connects the connecting sleeve and the lifting component. The lifting component drives the connecting sleeve, which in turn drives the movement of the conveying component. The rotating and moving component also has one rotational degree of freedom, driving the rotation of the entire conveying component. The rotating and moving component and the track component have a translational degree of freedom, and the component moves along the track on a horizontal plane.

[0027] Furthermore, the stacker crane of this invention boasts high positioning accuracy for each degree of freedom. The transport component has two rotational degrees of freedom, both driven and controlled by servo motors, resulting in high motion and positional accuracy. The lifting component drives the connecting sleeve, which in turn drives the transport component. The lifting component's degree of freedom of movement is transmitted via a servo motor connected to a planetary reducer, which then outputs to a screw drive, enabling accurate lifting of materials to the appropriate height. The rotating component also has one degree of freedom of movement; a servo motor drives the entire transport component to rotate, accurately controlling the rotation angle. The degree of freedom of movement between the rotating component and the track component is achieved by another servo motor driving the entire stacker crane to move on the track, enabling accurate positioning and control of the stacker crane's position on the guide rail. Attached Figure Description

[0028] Figure 1 This is a cross-sectional view of the overall structure of the present invention.

[0029] Figure 2 For the present invention Figure 1 A magnified view of part A.

[0030] Figure 3 This is a three-dimensional structural diagram of the connecting sleeve of the present invention.

[0031] Figure 4 This is a side view of the connecting sleeve of the present invention.

[0032] Figure 5 This is a side sectional view of the connecting sleeve of the present invention.

[0033] Figure 6 This is a front sectional view of the connecting sleeve of the present invention.

[0034] Figure 7 This is a three-dimensional structural diagram of the support portion of the present invention.

[0035] Figure 8 This is a three-dimensional structural diagram of the rotating moving component and the track component of the present invention.

[0036] Figure 9This is a top cross-sectional view of the rotating moving component and the track component of the present invention.

[0037] In the diagram, 1-transfer assembly, 11-first-stage rotating part, 12-second-stage rotating part, 13-rotating connection part, 14-connecting sleeve, 141-bearing part, 1411-side mounting part, 1412-first support, 1413-second support, 1414-transfer connection part, 1415-mezzanine plate, 1416-inner support, 1417-third support, 1418-semi-open mounting port, 142-slider mounting plate, 1421-connecting sleeve slider. 1422-Opening, 143-Outer shell, 2-Lifting assembly, 21-Rotating motor, 22-Rotating base, 23-Servo motor, 3-Rotating moving assembly, 31-Integral rotating assembly, 311-Drive pinion, 312-Fixed gear plate, 313-Supporting roller, 314-Enclosure plate, 315-Rotating guide plate, 32-Load platform, 33-Moving motor, 34-Moving slider, 4-Rail assembly, 41-Rack, 42-Guide rail. Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0039] Example 1:

[0040] like Figures 1 to 9 As shown, the present invention discloses a heavy-duty rotary stacker, which can be divided into three components.

[0041] Material handling assembly 1: Responsible for material handling, it is rotatable and has two parallel rotational axes, connecting to lifting assembly 2. Both rotational axes utilize precision RV reducers and precision servo motors, enabling high-precision control of the rotation angle.

[0042] Lifting Component 2: Lifting component 2 is a columnar frame structure that can raise or lower the entire transport component 1. The base of lifting component 2 is mounted on rotating moving component 3, allowing it to rotate along with transport component 1. The rotating shaft here also uses a precision RV reducer and a precision servo motor, enabling high-precision control of the rotation angle.

[0043] Rotating moving component 3: It bears the entire weight of the handling component 1, the lifting component 2, and the materials. The lifting component 2 can rotate on the rotating moving component 3. The rotating moving component 3 can drive the entire heavy-duty rotary stacker, including the handling component 1 and the lifting component 2, to move on the track component 4.

[0044] The transport assembly 1 and the lifting assembly 2 are connected by a connecting sleeve 14, which has a honeycomb structure and features high strength and low deflection. The connecting sleeve 14 and the transport assembly 1 are rotatably connected, with the rotation center of the second-stage rotating part 12 of the transport assembly 1 located at the connection point between the connecting sleeve 14 and the transport assembly 1. At the connection point between the connecting sleeve 14 and the lifting assembly 2, the connecting sleeve 14 is driven by a screw on the lifting assembly 2, and the connecting sleeve 14 is movably connected to the lifting assembly 2. The connecting sleeve 14 can move in a first direction. The first direction is parallel to the screw axis, therefore the direction of movement of the connecting sleeve 14 is related to the direction of the screw axis. The second direction of movement can be vertical or inclined; in this embodiment, it is arranged vertically, therefore the first direction of movement in this embodiment is vertical.

[0045] A servo motor 23 is installed on top of the lifting assembly 2. The servo motor 23 can accurately position and control the lifting height of the lifting assembly 2 by driving its rotation. The output of the servo motor 23 is connected to a planetary reducer to drive the screw to rotate. The planetary reducer greatly increases the torque transmitted to the screw, which in turn can drive the heavier transport assembly 1 to move up and down.

[0046] The rotational speed of the servo motor 23 is input to the planetary reducer, which outputs a reduced rotational speed to the screw. However, the planetary reducer amplifies the output torque of the servo motor 23, providing a larger torque to the screw, enabling the screw to provide lifting and lowering driving force to the conveying assembly 1. At this time, the rotation of the screw drives the conveying assembly 1 to perform lifting and lowering movements.

[0047] The bottom of the lifting assembly 2 is connected and installed to the rotating moving assembly 3, and the lifting assembly 2 can rotate on the rotating moving assembly 3. The rotating moving assembly 3 is movably connected to the track assembly 4, and the rotating moving assembly 3 can slide on the track assembly 4 in a second direction.

[0048] The connecting sleeve 14 between the transport assembly 1 and the lifting assembly 2 has a three-layer structure. The middle layer, the load-bearing part 141, is the structure that primarily supports the weight of the transport assembly 1 and connects to the screw drive of the lifting assembly 2. The load-bearing part 141 is enclosed by the other two layers. The transport connection part 1414, where the load-bearing part 141 connects to the transport assembly 1, has an upper and lower ring-shaped structure, with the circular cavities at the centers of the upper and lower rings overlapping.

[0049] The conveying connection 1414 is in the shape of a ring-shaped protective cage. At the contact point between the conveying connection 1414 and the conveying assembly 1, the upper and lower layers of the conveying connection 1414 have equally spaced mounting holes of the same specification. The corresponding mounting holes on the upper and lower layers are located on the same axis. Near the end of the bearing part 141, the upper and lower layers of the conveying connection 1414 have vertical plates of the same specification, arranged in a ring with equal arc intervals, connecting the upper and lower layers. There is a mounting hole between adjacent vertical plates. This design better supports the downward pressure exerted on the conveying connection 1414 when the motor is mounted on it and pulls the conveying assembly 1 and the material.

[0050] Located at the other end of the bearing portion 141, away from the transport connection portion 1414, the internal support structure of its upper and lower plates is completely different from that of the transport connection portion 1414. A cross-section of the connecting sleeve 14 reveals a horizontal interlayer plate 1415 located on the outer side between the upper and lower layers. On the inner side of the interlayer plate 1415, parallel to the upper and lower layers, are two inner supports 1416. These two inner supports 1416 are connected to and perpendicular to the interlayer plate 1415, and two more inner supports 1416 are symmetrically arranged further inward to connect the upper and lower layers.

[0051] The mezzanine plate 1415 and the inner support 1416 connected to it create two smaller chambers between the upper and lower layers of the support portion 141. Adjacent inner supports 1416 on each side create two rectangular chambers. The two inner supports 1416 closest to the center create a larger rectangular chamber. The mezzanine plate 1415 and the inner supports 1416 divide the space inside the end of the support portion 141 away from the transport connection portion 1414 into these chamber shapes, and these chamber shapes are symmetrical.

[0052] When the bearing portion 141 is under stress, the transport connection portion 1414 experiences downward pressure. However, since the bearing portion 141 is a single integral component, a bending moment will occur. The middle plate is subjected to both radial and axial forces. Therefore, by placing a partition inside the bearing portion 141 at the end away from the transport connection portion 1414, it can better resist the bending moment and distribute stress more evenly. Furthermore, while ensuring a low weight, the bearing portion 141 maintains high structural strength, enabling it to withstand large stresses with only small deformations, thus reducing the impact on the accuracy of the movement process.

[0053] On the support part 141, vertical plate side mounting parts 1411 are provided on both sides at the position where the support part 141 is connected to the lifting assembly 2. The height of the side mounting parts 1411 is greater than the thickness of the support part 141. The side mounting parts 1411 are connected to the upper and lower layers of the support part 141 and the interlayer plate 1415. The width of the connection position between the support part 141 and the side mounting parts 1411 is relatively large. The width of the support part 141 between the side mounting parts 1411 and the transport connection part 1414 first narrows at an incline, and then remains horizontal and is tangent to the transport connection part 1414.

[0054] The height of the side mounting portion 1411 extending above the support portion 141 is equivalent to the thickness of the support portion 141, and the height of the side mounting portion 1411 extending above the support portion 141 is two to three times the height of the side mounting portion 1411 extending below the support portion 141.

[0055] The side mounting portion 1411 has three horizontally plate-shaped second supports 1413 arranged parallel to each other at equal intervals on the upper part of the support portion 141. The second supports 1413 are connected to both the side mounting portion 1411 and the support portion 141. The side mounting portion 1411 has two rows of holes on its outer side near both sides for connecting with other components of the connecting sleeve 14. Near the transport connection portion 1414 on both sides of the side mounting portion 1411, a first support 1412 is provided at the waist of the second support 1413, perpendicular to the second support 1413 and extending towards the transport connection portion 1414. The first support 1412, the second support 1413, and the side mounting portion 1411 are all symmetrically distributed.

[0056] The first support further enhances the bending strength and stress-bearing capacity of the load-bearing portion 141. Three horizontally plate-shaped third supports 1417 are also evenly spaced and parallelly arranged between the side mounting portion 1411 and the lower layer of the load-bearing portion 141. The third supports 1417 are connected to both the side mounting portion 1411 and the load-bearing portion 141. Both the second support 1413 and the third support 1417 effectively improve the connection strength between the side mounting portion 1411 and the load-bearing portion 141, optimize the stress distribution on the load-bearing portion 141, and enhance the load-bearing capacity and connection strength of the load-bearing portion 141.

[0057] To accurately position the stacker crane and determine its real-time location and operating status, this embodiment also installs sensors or positioning devices on the main moving parts. The bottom of the rotating moving assembly 3 is equipped with a sliding block 34, and a displacement sensor is also installed on the rotating moving assembly 3 to measure the distance the stacker crane has moved and assist in locating the current position of the stacker crane.

[0058] The track assembly 4 is provided with a guide rail 42, and the movable slider 34 is sleeved on the guide rail 42. Several position detection devices are provided on the outside of the guide rail 42 at certain intervals to detect the current position of the stacker and whether it has reached the designated position.

[0059] The conveying assembly 1 is provided with a first-stage rotating part 11 and a second-stage rotating part 12. A rotating connection part 13 is provided between the first-stage rotating part 11 and the second-stage rotating part 12. The second-stage rotating part 12 is connected to the connecting sleeve 14.

[0060] Each rotating section of the conveying assembly is equipped with a servo motor. All servo motors are controlled by a control device inside the stacker crane. An angular displacement sensor is installed on each rotating section, and the data from the angular displacement sensors is transmitted to the control device in real time. The control device calculates the current position of the conveying assembly 1 and its loading end. The loading end of the conveying assembly 1 is located at the end platform of the first rotating section 11 and is responsible for carrying and conveying materials.

[0061] While existing stacker cranes can rotate and lift materials, the connection between their sliding arm and swing arm is difficult to withstand large loads. The stacker crane of this invention features a honeycomb-shaped connecting sleeve 14 between the handling component 1 and the lifting component 2, and the connecting sleeve 14 is securely and reliably fixed to both components. The connecting sleeve 14 can bear the entire weight of the handling component 1, does not deform significantly under heavy loads, and is lightweight, thus ensuring the load capacity of the stacker crane and the reliability of the connection between the handling component 1 and the lifting component 2.

[0062] The stacker crane of this invention also has three rotational degrees of freedom and two translational degrees of freedom, and the conveying component 1 has two rotational degrees of freedom, resulting in high flexibility and a large range of motion. The lifting component 2 drives the connecting sleeve 14, thereby moving the conveying component 1. The lifting component 2 has a translational degree of freedom and is perpendicular to the horizontal plane. The connecting sleeve 14 is connected to the lifting component 2 via a screw drive. The lifting component 2 drives the connecting sleeve 14, which in turn drives the conveying component 1. The rotating and moving component 3 also has one rotational degree of freedom, driving the overall rotation of the conveying component 1. The rotating and moving component 3 and the track component 4 have a translational degree of freedom, and the component moves on the guide rail 42 while located on a horizontal plane.

[0063] Furthermore, the stacker crane of this invention boasts high positioning accuracy for each degree of freedom. The transport component 1 has two rotational degrees of freedom, both driven and controlled by servo motors, resulting in high motion and positional accuracy. The lifting component 2 drives the connecting sleeve 14, thereby initiating the movement of the transport component 1. The movement degree of freedom of the lifting component 2 is transmitted via a servo motor connected to a planetary reducer, which then outputs to a screw drive, enabling accurate lifting of materials to the corresponding height. The rotating moving component 3 also has one rotational degree of freedom, driven by a servo motor that rotates the entire transport component 1, accurately controlling the rotation angle. The movement degree of freedom between the rotating moving component 3 and the track component 4 is driven by another servo motor, allowing the stacker crane to move along the track and accurately position and control its location on the guide rail 42.

[0064] Example 2:

[0065] This embodiment, based on Embodiment 1, further describes the connection method and function between the connecting sleeve and the lifting assembly.

[0066] like Figures 1 to 9 As shown, the conveying assembly 1 and the lifting assembly 2 are connected by a connecting sleeve 14. The connecting sleeve 14 and the conveying assembly 1 are rotatably connected. The rotation center of the second-stage rotating part 12 of the conveying assembly 1 is located at the connection position between the connecting sleeve 14 and the conveying assembly 1. At the connection point between the connecting sleeve 14 and the lifting assembly 2, the connecting sleeve 14 is connected to a screw provided on the lifting assembly 2. The connecting sleeve 14 and the lifting assembly 2 are movably connected, and the connecting sleeve 14 can move in a first direction. The first direction is parallel to the axis of the screw, so the direction of movement of the connecting sleeve 14 is related to the axial direction of the screw. The second direction of movement can be vertical or inclined. In this embodiment, the screw is arranged vertically, so the first direction of movement in this embodiment is vertical.

[0067] The bottom of the lifting assembly 2 is connected and installed to the rotating moving assembly 3, and the lifting assembly 2 can rotate on the rotating moving assembly 3. The rotating moving assembly 3 is movably connected to the track assembly 4, and the rotating moving assembly 3 can slide on the track assembly 4 in a second direction.

[0068] The connecting sleeve 14 between the transport assembly 1 and the lifting assembly 2 has a three-layer structure. The middle layer, the load-bearing part 141, is the structure that primarily supports the weight of the transport assembly 1 and connects to the screw drive of the lifting assembly 2. The load-bearing part 141 is enclosed by the other two layers. The transport connection part 1414, where the load-bearing part 141 connects to the transport assembly 1, has an upper and lower ring-shaped structure, with the circular cavities at the centers of the upper and lower rings overlapping.

[0069] The conveying connection 1414 is in the shape of a ring-shaped protective cage. At the contact point between the conveying connection 1414 and the conveying assembly 1, the upper and lower layers of the conveying connection 1414 have equally spaced mounting holes of the same specification. The corresponding mounting holes on the upper and lower layers are located on the same axis. Near the end of the bearing part 141, the upper and lower layers of the conveying connection 1414 have vertical plates of the same specification, arranged in a ring with equal arc intervals, connecting the upper and lower layers. There is a mounting hole between adjacent vertical plates. This design better supports the downward pressure exerted on the conveying connection 1414 when the motor is mounted on it and pulls the conveying assembly 1 and the material.

[0070] Located at the other end of the bearing portion 141, away from the transport connection portion 1414, the internal support structure of its upper and lower plates is completely different from that of the transport connection portion 1414. A cross-section of the connecting sleeve 14 reveals a horizontal interlayer plate 1415 located on the outer side between the upper and lower layers. On the inner side of the interlayer plate 1415, parallel to the upper and lower layers, are two inner supports 1416. These two inner supports 1416 are connected to and perpendicular to the interlayer plate 1415, and two more inner supports 1416 are symmetrically arranged further inward to connect the upper and lower layers.

[0071] The mezzanine plate 1415 and the inner support 1416 connected to it create two smaller chambers between the upper and lower layers of the support portion 141. Adjacent inner supports 1416 on each side create two rectangular chambers. The two inner supports 1416 closest to the center create a larger rectangular chamber. The mezzanine plate 1415 and the inner supports 1416 divide the space inside the end of the support portion 141 away from the transport connection portion 1414 into these chamber shapes, and these chamber shapes are symmetrical.

[0072] When the bearing portion 141 is under stress, the transport connection portion 1414 experiences downward pressure. However, since the bearing portion 141 is a single integral component, a bending moment will occur. The middle plate is subjected to both radial and axial forces. Therefore, by placing a partition inside the bearing portion 141 at the end away from the transport connection portion 1414, it can better resist the bending moment and distribute stress more evenly. Furthermore, while ensuring a low weight, the bearing portion 141 maintains high structural strength, enabling it to withstand large stresses with only small deformations, thus reducing the impact on the accuracy of the movement process.

[0073] On the support portion 141, vertical plate side mounting portions 1411 are provided on both sides at the position where the support portion 141 connects to the lifting assembly 2. The height of the side mounting portions 1411 is greater than the thickness of the support portion 141, and the top of the side mounting portions 1411 has a protruding structure that can be locked onto the component connected to the side mounting portions 1411. The side mounting portions 1411 are connected to the upper and lower layers of the support portion 141 and the interlayer plate 1415. The width at the connection position between the support portion 141 and the side mounting portions 1411 is relatively large. The width of the support portion 141 between the side mounting portions 1411 and the transport connection portion 1414 first narrows at an incline, and then remains horizontal and is tangent to the transport connection portion 1414.

[0074] The height of the side mounting portion 1411 extending above the support portion 141 is equivalent to the thickness of the support portion 141, and the height of the side mounting portion 1411 extending above the support portion 141 is two to three times the height of the side mounting portion 1411 extending below the support portion 141.

[0075] The side mounting portion 1411 has three horizontally plate-shaped second supports 1413 arranged parallel to each other at equal intervals on the upper part of the support portion 141. The second supports 1413 are connected to both the side mounting portion 1411 and the support portion 141. The side mounting portion 1411 has two rows of holes on its outer side near both sides for connecting with other components of the connecting sleeve 14. Near the transport connection portion 1414 on both sides of the side mounting portion 1411, a first support 1412 is provided at the waist of the second support 1413, perpendicular to the second support 1413 and extending towards the transport connection portion 1414. The first support 1412, the second support 1413, and the side mounting portion 1411 are all symmetrically distributed.

[0076] The first support further enhances the bending strength and stress-bearing capacity of the load-bearing portion 141. Three horizontally plate-shaped third supports 1417 are also evenly spaced and parallelly arranged between the side mounting portion 1411 and the lower layer of the load-bearing portion 141. The third supports 1417 are connected to both the side mounting portion 1411 and the load-bearing portion 141. Both the second support 1413 and the third support 1417 effectively improve the connection strength between the side mounting portion 1411 and the load-bearing portion 141, optimize the stress distribution on the load-bearing portion 141, and enhance the load-bearing capacity and connection strength of the load-bearing portion 141.

[0077] The connecting sleeve 14 consists of three main layers from the inside out: the innermost layer is the bearing part 141, the middle layer is the slider mounting plate 142, and the outermost layer is the outer shell 143. The slider mounting plate 142 is plate-shaped, with one side being triangular and having a triangular opening 1422 in the middle, and the other side being rectangular. The area of ​​the rectangle is roughly the same as, but larger than, the area of ​​the side mounting part 1411. Therefore, the rectangular part of the slider mounting plate 142 is connected and installed to the side mounting part 1411.

[0078] Because two side mounting portions 1411 are provided on each side of the support portion 141, correspondingly, two slider mounting plates 142 are also provided on each side of the support portion 141 to be mounted on the side mounting portions 1411. Two rows and two columns, totaling four connecting sleeve sliders 1421, are installed on the inner side of one triangular side of the slider mounting plate 142. In one column, one connecting sleeve slider 1421 is mounted near the apex of one side of the triangle, and the other is mounted on the base of the triangle. In the other column, the connecting sleeve slider 1421 is mounted near the support portion 141, located on both sides of one corner of the triangle, with the mounting positions of the connecting sleeve sliders 1421 staggered at different heights. Correspondingly, the heights of the two slide rails on the lifting assembly 2 also differ.

[0079] The outer casing 143 is U-shaped, with each side of the U connected to a slider mounting plate 142. The outer side of the slider mounting plate 142 is connected to the two side plates of the outer casing 143. The connection between the outer casing 143 and the slider mounting plate 142 is located at the apex of the slider mounting plate 142. The connection between the outer casing 143 and the slider mounting plate 142 extends along both sides of the apex of the slider mounting plate 142 on the outer casing 143. One side extends to half the length of the triangle, and the other side extends to half the length of one side of the triangle before extending along the wide side of the rectangular portion of the slider mounting plate 142. The end of the extended section is flush with the end of the rectangular portion of the slider mounting plate 142.

[0080] The outer shell 143 and the slider mounting plate 142 have a two-section contact connection, making the connection more robust and stable, and less prone to deformation or detachment. Furthermore, the larger contact area facilitates easier positioning and installation. The connecting sleeve 14 adopts a three-layer assembly structure, indicating that the stress at this point is not very high. The main stress-bearing part is the bearing part 141. The force on the bearing part 141 is transmitted to the lifting assembly 2, where it is supported by the threaded connection between the screw of the lifting assembly 2 and the bearing part 141.

[0081] The part of the bearing part 141 that connects to the screw of the lifting assembly 2 is a semi-open mounting port 1418. The semi-open mounting port 1418 makes it easier to install with the lifting assembly 2. The width of the opening of the semi-open mounting port 1418 is sufficient for the screw to pass through, but it can be locked onto the nut that has a precise thread engagement with the screw. Therefore, the semi-open mounting port 1418 and the nut of the screw are fixedly installed through the mounting holes around the semi-open mounting port 1418.

[0082] The transport assembly 1 consists of a first-stage rotating part 11 and a second-stage rotating part 12. The first-stage rotating part 11 and the second-stage rotating part 12 are connected by a shoe-shaped rotating connecting part 13. The second-stage rotating part 12 is connected to the transport connecting part 1414 of the connecting sleeve 14.

[0083] Example 3:

[0084] Based on Embodiment 1 or 2, this embodiment describes how the lifting assembly 2 is connected to the rotating moving assembly 3, and how the lifting assembly 2 rotates on the rotating moving assembly 3.

[0085] like Figures 1 to 9 As shown, the lifting assembly 2 and the rotating moving assembly 3 are connected by an integral rotating assembly 31. The integral rotating assembly 31 is connected and installed with the lifting assembly 2, and drives the lifting assembly 2 to rotate. A rotating base 22 is provided between the rotating moving assembly 3 and the lifting assembly 2. A rotating motor 21 is fixedly installed on the rotating base 22. The rotating motor 21 is connected to the drive pinion 311 in the integral rotating assembly 31, and the rotating motor 21 drives the drive pinion 311 to rotate.

[0086] The overall rotating assembly 31 includes a rotating guide disk 315, which is hollow. A columnar body is located in the central cavity of the rotating guide disk. At the upper end of the columnar body is a fixed gear disk 312 with a diameter much larger than that of the driving pinion 311. The fixed gear disk 312 is integrally machined with the columnar body. The columnar body is fixedly installed to the rotating guide disk 315, therefore the fixed gear disk 312 will not rotate. Gear meshing occurs between the driving pinion 311 and the fixed gear disk 312.

[0087] By engaging the drive pinion 311 with the fixed gear disk 312, when the rotating motor 21 drives the drive pinion 311 to rotate, the drive pinion 311 will roll on the outer ring of the fixed gear disk 312, thereby driving the rotating base 22 to rotate relative to the overall rotating assembly 31. Since the lifting assembly 2 is fixedly installed on the rotating base 22, the tooth profile of the drive pinion 311 and the fixed gear disk 312 is preferably helical gear, which can effectively increase the contact area between the drive pinion 311 and the fixed gear disk 312, improve the torque transmission efficiency, and make the rotation of the lifting assembly 2 smoother and more stable.

[0088] The rotating base 22 and the overall rotating assembly 31 have a stepped surface fit. A cavity exists between the rotating base 22 and the rotating guide disk 315, with the bottom of the cavity being the plane of the rotating guide disk 315. Circular support rollers 313 are spaced apart at the bottom of the cavity; in this embodiment, three are provided. The annular surface of the side end of each support roller 313 is tangent to both the inner surface of the rotating base 22 and the outer surface of the rotating guide disk 315. The surface precision requirements for the sides of the support rollers 313 are high, requiring minimal friction when the support rollers 313 roll between the interior of the rotating base 22 and the outer wall of the rotating guide disk 315.

[0089] Because the drive pinion 311 does not provide centripetal force when the rotating base 22 rotates, it is not the main force-bearing component. The rotation of the rotating base 22 is supported by the support roller 313 pressing between the rotating base 22 and the rotating guide plate 315. Since the movement of the support roller 313 is rolling, the friction is small and the mechanical effect is good. The rotation process of the lifting assembly 2 is smooth and the vibration is small.

[0090] The overall rotating assembly 31 contacts eight surrounding plates 314 arranged in a ring at equal arc intervals on the load platform 32 of the rotating moving assembly 3, and the overall rotating assembly 31 is placed on the surrounding plates 314.

[0091] A sliding block 34 is provided at the bottom of the rotating moving component 3. The sliding block 34 is fitted onto the guide rail of the track component 4. The track component 4 has two guide rails 42, so there are two rows of sliding blocks 34 at the bottom of the rotating moving component 3. For equipment with heavy loads, the larger the contact area of ​​the bottom moving component, the smoother its movement, the easier the drive, and the less likely it is to damage other parts. Therefore, the larger the cross-sectional perimeter of the sliding blocks 34 of the rotating moving component 3 is within a reasonable range, the better, and the more numerous they are within a certain range, the better. However, increasing the number and the cross-sectional perimeter will require higher precision in the fit between the sliding blocks 34 and the guide rails 42, and increase the processing cost.

[0092] A rack 41 is provided on the outside of the guide rail 42, parallel to the guide rail 42. A moving motor 33 is installed at one corner of the rotating moving component 3. The moving motor drives the gear meshing with the rack 41, thereby driving the rotating moving component 3 to move the lifting component 2 and the transport component 1 on the track component 4.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A heavy-duty rotary stacker, characterized in that, It includes a transport component (1), a lifting component (2), and a rotating moving component (3). The transport component (1) and the lifting component (2) are connected by a connecting sleeve (14). The innermost part of the connecting sleeve (14) is a bearing part (141), the middle layer is a slider mounting plate (142), and the outermost layer is an outer shell (143). The transport connecting part (1414) at the connection between the bearing part (141) and the transport component (1) has a two-layer ring structure. The connecting sleeve (14) is rotatably connected to the conveying assembly (1), the connecting sleeve (14) is movably connected to the lifting assembly (2), and the connecting sleeve (14) moves in a first direction; The transport connection part (1414) is in the shape of a ring cage. The upper and lower layers of the transport connection part (1414) near the end of the bearing part (141) have vertical plates of the same specifications, arranged in a ring with equal arc intervals. At the other end of the bearing part (141), away from the transport connection part (1414), a horizontal interlayer plate (1415) is provided on the outer side between the upper and lower layers; on the inner side of the interlayer plate (1415), an inner support (1416) is provided parallel between the upper and lower layers, wherein two inner supports (1416) are respectively connected to the interlayer plate (1415) and perpendicular to the interlayer plate (1415), and two inner supports (1416) are symmetrically provided on the inner side to connect the upper and lower layers; The rotating moving component (3) and the lifting component (2) are rotatably connected, the rotating moving component (3) is movably connected to the track component (4), and the rotating moving component (3) moves in the second direction.

2. The heavy-duty rotary stacker according to claim 1, characterized in that, The connecting sleeve (14) is composed of three layers. The part of the connecting sleeve (14) that connects to the transport component (1) is the bearing part (141). One end of the bearing part (141) is an annular cage-shaped transport connecting part (1414), and the other end is a semi-open installation port (1418).

3. A heavy-duty rotary stacker according to claim 2, characterized in that, The support part (141) is located near the semi-open mounting port (1418), and side mounting parts (1411) are vertically symmetrically provided on both sides of the support part (141). The side mounting parts (1411) are connected to the slider mounting plate (142). A second support (1413) and a third support (1417) are respectively provided between the upper and lower surfaces of the side mounting parts (1411) and the support part (141).

4. A heavy-duty rotary stacker according to claim 2, characterized in that, The upper and lower plates of the bearing part (141) at one end of the transport connection part (1414) are supported by vertical plates arranged at intervals, and a sandwich plate (1415) is provided at the other end of the bearing part (141) between the upper and lower plates. The inner support (1416) arranged parallel between the upper and lower plates of the sandwich panel (1415) and the bearing part (141) is perpendicular to each other, and the sandwich panel (1415) and the inner support (1416) divide the bearing part (141) into several chambers.

5. A heavy-duty rotary stacker according to claim 1, 2, 3, or 4, characterized in that, The connecting sleeve (14) is provided with an outer shell (143), a slider mounting plate (142), and a bearing part (141) from the outside to the inside. The slider mounting plate (142) is plate-shaped, with one side in a triangular shape and a triangular opening (1422) in the middle. The other side is rectangular and is installed with the bearing part (141). One corner and two sides of the outer end face of the triangle are connected to the outer shell (143). The inner side of the slider mounting plate (142) is provided with a connecting sleeve slider (1421), and the connecting sleeve sliders (1421) are staggered in height.

6. A heavy-duty rotary stacker according to claim 5, characterized in that, The side plate of the outer shell (143) is connected to the slider mounting plate (142). The side plate at the connection position extends along the two sides of the upper corner of the triangle of the slider mounting plate (142), and the extended side is fixedly connected to the slider mounting plate (142).

7. A heavy-duty rotary stacker according to claim 1, 2, 3, 4, or 6, characterized in that, An integral rotating assembly (31) is provided between the lifting assembly (2) and the rotating moving assembly (3). The integral rotating assembly (31) is provided with a drive pinion (311). The drive pinion (311) is connected to the rotating motor (21) for transmission. The rotating motor (21) is fixedly installed on the lifting assembly (2). A servo motor (23) is vertically provided at the top of the lifting assembly (2). The servo motor (23) positions and controls the lifting of the transport assembly (1). The overall rotating assembly (31) is provided with a fixed gear plate (312), which is fixedly connected to the rotating moving assembly (3).

8. A heavy-duty rotary stacker according to claim 7, characterized in that, The rotating base (22) of the lifting assembly (2) is rotatably connected to the overall rotating assembly (31), and the fixed gear plate (312) is mounted on the rotating guide plate (315); A cavity is provided between the rotating base (22) and the rotating guide disk (315), and a disc-shaped support roller (313) is provided at the bottom of the cavity. The side annular surface of the support roller (313) is tangent to the inner surface of the rotating base (22) and the outer surface of the rotating guide disk (315).

9. A heavy-duty rotary stacker according to claim 1, 2, 3, 4, 6, or 8, characterized in that, The bottom of the rotating moving component (3) is provided with a moving slider (34), and a displacement sensor is also provided on the rotating moving component (3) to measure the distance the stacker moves and assist in positioning the current position of the stacker; The track assembly (4) is provided with a guide rail (42), and the movable slider (34) is sleeved on the guide rail (42). Several position detection devices are provided on the outside of the guide rail (42) at certain intervals to detect the current position of the stacker and whether it has reached the designated position.

10. A heavy-duty rotary stacker according to claim 1, 2, 3, 4, 6, or 8, characterized in that, The conveying assembly (1) is provided with a first-stage rotating part (11) and a second-stage rotating part (12), and a rotating connection part (13) is provided between the first-stage rotating part (11) and the second-stage rotating part (12), and the second-stage rotating part (12) is connected to the connecting sleeve (14); Each stage of the transport assembly (1) is equipped with a servo motor. All servo motors are controlled by a control device inside the stacker. An angular displacement sensor is installed on each stage of the rotating part. The data from the angular displacement sensor is transmitted to the control device in real time. The control device calculates the current position of the transport assembly (1) and the load end of the transport assembly (1).

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