A large-load low-position roller rotating conveying mechanism

Abstract

The utility model discloses a kind of big load low position roller cylinder rotary conveying mechanism, it is related to rotary table conveyor technical field, including annular base, bottom fixed plate, roller conveyor, the bottom fixed plate top is equipped with slewing support, the slewing support top is equipped with connecting plate, roller conveyor is fixedly installed on the connecting plate, the both ends outside of the connecting plate is fixedly connected with rotating outer ring, this big load low position roller cylinder rotary conveying mechanism, by increasing idler between main drive gear and slewing support outer gear ring, form three-stage gear transmission structure, reduce the size of main drive gear, reduce the overall volume of conveyor, reduce the axial load of rotary drive motor, avoid the spacing between heavy load roller cylinder rotary table conveyor and linear conveying track too large, ensure the compactness of butt joint, and overall equipment maximum compression height, meet the design requirement of 215mm ultra-low conveying height, adapt narrow installation space, realize ultra-low height conveying and do not need ground modification.

Description

Technical Field

[0001] This utility model relates to the field of turntable conveyor technology, specifically a high-load low-position roller rotary conveyor mechanism. Background Technology

[0002] The function of heavy-duty roller turntable conveyors is to transport materials and change the direction of material transport through their own rotation. Currently, the overall height of heavy-duty roller turntable conveyors on the market is relatively high, making them unsuitable for narrow installation spaces. For example, the existing technology, Chinese patent application number 200920281121.2, discloses an automatic rotating platform with a track. Chinese utility model patent application number 202321171686.1 discloses a rotary conveyor for a sterilization cart, including an upper platform assembly and a lower platform assembly. The upper platform assembly and the lower platform assembly are connected by a slewing bearing. The inner ring of the slewing bearing is fixedly connected to the lower platform assembly, and the outer ring of the slewing bearing is fixedly connected to the upper platform assembly. This can solve the problems of complex structure and inaccurate rotation angle of existing equipment, and meet the needs of high-efficiency and uninterrupted continuous operation. However, as can be seen from the existing technologies mentioned above, they all have a relatively high overall height, which cannot be adapted to narrow installation spaces and cannot meet the requirements of ultra-low conveying height. To achieve ultra-low material conveying, it is necessary to dig a pit on the installation ground, which increases the installation and construction costs of the equipment and the requirements for site modification. Therefore, we propose a high-load low-position roller rotary conveying mechanism. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a high-load-bearing low-position roller rotary conveying mechanism, which solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-load-bearing low-position roller rotary conveyor mechanism, comprising an annular base, a bottom fixing plate, and a roller conveyor. A rotary support is installed on the top of the bottom fixing plate, and a connecting plate is assembled on the top of the rotary support. The roller conveyor is fixedly installed on the connecting plate, and a rotating outer ring is fixedly connected to both outer ends of the connecting plate. C-shaped plates are installed on both sides of the upper surface of the rotating outer ring, and a middle support beam is fixedly installed on the C-shaped plate. The middle support beam is fixedly installed with the rotating outer ring and passes through the roller conveyor and is connected to the roller conveyor.

[0005] A motor mounting plate is fixedly installed on the side of the intermediate support beam. A rotary drive motor is mounted on the motor mounting plate, and the output shaft of the rotary drive motor passes through the motor mounting plate and is fixedly mounted with a main drive gear. A mounting shaft is rotatably mounted on the motor mounting plate, and an idler gear that meshes with the main drive gear and the external gear ring of the rotary support is fixedly mounted on the mounting shaft. A conveyor motor is also fixedly installed on the outside of the intermediate support beam. The conveyor motor is used to drive the roller conveyor.

[0006] Preferably, the roller conveyor consists of a mounting frame, conveying shafts, conveying rollers, a synchronous chain, and double-row sprockets. The mounting frame is fixedly connected to the connecting plate and the intermediate support beam. Several conveying shafts are equidistantly rotatably mounted inside the mounting frame, and one end of each conveying shaft is fixedly equipped with a double-row sprocket. A synchronous chain is installed between two adjacent double-row sprockets for transmission. One end of one conveying shaft is fixedly assembled to the output shaft of the conveying motor. A conveying roller is fixedly mounted on the surface of the conveying shaft, and both ends of the conveying roller have a flanged structure.

[0007] Preferably, the bottom fixing plate has a through groove, the bottom fixing plate is equipped with an adjustable support foot, and the bottom end of the adjustable support foot passes through the through groove. Both the bottom fixing plate and the annular base have multiple mounting through holes.

[0008] Preferably, the inner ring of the slewing support is fixedly connected to the connecting plate, and the outer gear ring of the slewing support is fixedly connected to the bottom fixing plate.

[0009] Preferably, the annular base is located directly below the rotating outer ring, the diameter of the annular base is the same as the diameter of the rotating outer ring, an mounting screw is fixedly installed on the annular base, and an auxiliary support wheel is installed on the annular base through the mounting screw, the auxiliary support wheel contacting the lower surface of the rotating outer ring to form support.

[0010] Preferably, a protective housing is bolted to the C-shaped plate, and one of the protective housings has a through slot for avoiding the conveyor motor and the rotary drive motor.

[0011] Preferably, a limit switch is installed on the mounting bracket.

[0012] Preferably, a switch mounting bracket is installed on the upper surface of the annular base, the switch mounting bracket is provided with a position detection photoelectric switch and a protection photoelectric switch, a positioning block mounting bracket is installed on the annular base, and a positioning block is fixedly connected to the positioning block mounting bracket.

[0013] Preferably, a positioning cylinder is fixedly installed on the intermediate support beam, and the end diameter of the positioning cylinder is the same as the inner diameter of the positioning block, and the end of the positioning cylinder extends into the inner cavity of the positioning block.

[0014] Preferably, the diameter of the conveying roller is 76mm, the effective conveying length of the roller conveyor is 3121mm, the effective conveying width is 1580mm, and when the bottom fixed plate is in contact with the ground, the material conveying height of the upper surface of the conveying roller from the ground is 215mm, and the lower surface of the idler wheel is 26mm from the ground.

[0015] This utility model provides a high-load-bearing, low-position roller rotary conveyor mechanism, which has the following beneficial effects: 1. This high-load, low-position roller rotary conveyor mechanism, by adding an idler gear between the main drive gear and the external gear ring of the slewing support, forms a three-stage gear transmission structure. This reduces the size of the main drive gear, thereby reducing the overall volume of the conveyor and lessening the axial load on the rotary drive motor, extending the motor's service life. It also avoids excessive spacing between the heavy-duty roller turntable conveyor and the linear conveying track, ensuring a compact connection, and maximally compresses the overall height of the equipment, meeting the design requirement of an ultra-low conveying height of 215mm. This allows it to adapt to narrow installation spaces, achieving ultra-low height conveying without requiring ground modifications.

[0016] 2. This high-load low-position roller rotary conveyor mechanism enhances the connection stability between the turntable and the rotary support by adding an intermediate support beam structure. This allows the weight of the C-shaped plates on both sides to be evenly transferred to the inner ring of the rotary support in the middle, optimizing the overall stress structure of the equipment. Furthermore, the intermediate support beam is precisely positioned in the gap between the conveying rollers, making full use of the narrow installation space without affecting material conveying or the operation of the conveying rollers, thus improving the stability of the equipment.

[0017] 3. This high-load low-position roller rotary conveyor mechanism uses an adjustable-height directional wheel composed of mounting screws and auxiliary support wheels to make the rotation of the turntable more stable and reliable. By setting adjustable support feet in the middle of the equipment, the horizontal and vertical adjustment of the conveyor can be realized, ensuring the stability of material conveying and the continuity of the connection with the linear conveyor. Attached Figure Description

[0018] Figure 1 This is a perspective view of the structure of this utility model; Figure 2 This is a perspective view of the structure of this utility model from another angle; Figure 3 This is a schematic diagram of the structure of this utility model without a protective shell; Figure 4 This is a structural schematic diagram of the present invention without a protective outer shell from another perspective; Figure 5 This is a structural schematic diagram of the present invention without a protective outer shell from another perspective; Figure 6 This is a structural diagram of the rotary support, adjustable legs, and bottom fixing plate of this utility model; Figure 7 This is a front structural diagram of the present invention.

[0019] In the diagram: 1. Annular base; 2. Rotary support; 3. Bottom fixing plate; 4. Rotating outer ring; 5. Connecting plate; 6. C-shaped plate; 7. Roller conveyor; 8. Conveyor shaft; 9. Conveyor roller; 10. Conveyor motor; 11. Adjustable support feet; 12. Double row sprockets; 13. Synchronous chain; 14. Positioning cylinder; 15. Motor mounting plate; 16. Rotary drive motor; 17. Mounting screw; 18. Auxiliary support wheel; 19. Protective housing; 20. Mounting shaft; 21. Main drive gear; 22. Idler wheel; 23. Through groove; 24. Positioning block mounting bracket; 25. Position detection photoelectric switch; 26. Protective photoelectric switch; 27. Positioning block; 28. Intermediate support beam; 29. ​​Limit switch. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Example 1: Refer to Figures 1-7 This utility model provides a high-load low-position roller rotary conveyor mechanism, including an annular base 1, a bottom fixing plate 3, and a roller conveyor 7. A rotary support 2 is installed on the top of the bottom fixing plate 3. The rotary support 2 is a large high-load rolling bearing that can simultaneously withstand large axial loads, radial loads, and overturning moments. It is used to connect two components that need to rotate relative to each other and to transmit the combined load. Its core function is to achieve 360° rotation. The structure includes an inner ring, an outer gear ring (the inner ring and the outer gear ring can rotate relative to each other), rolling elements, a spacer block, a sealing and lubrication device, etc. The top of the slewing support 2 is equipped with a connecting plate 5, on which a roller conveyor 7 is fixedly installed. Rotating outer rings 4 are fixedly connected to the outer sides of both ends of the connecting plate 5. C-shaped plates 6 are installed on both sides of the upper surface of the rotating outer ring 4. A middle support beam 28 is fixedly installed on the C-shaped plate 6, and the middle support beam 28 passes through the roller conveyor 7 and is connected to the roller conveyor 7. A motor mounting plate 15 is fixedly installed on the side of the middle support beam 28. A rotary drive motor 16 is mounted on the motor mounting plate 15, and the output shaft of the rotary drive motor 16 passes through the motor mounting plate 15 and is fixedly installed with a main drive gear 21. A mounting shaft 20 is rotatably mounted on the motor mounting plate 15, and an idler wheel 22 that meshes with the main drive gear 21 and the outer gear ring of the slewing support 2 is fixedly installed on the mounting shaft 20. A conveyor motor 10 is also fixedly installed on the outer side of the middle support beam 28. The conveyor motor 10 is used to drive the roller conveyor 7.

[0022] By adding an idler gear 22 between the main drive gear 21 and the external gear ring of the slewing support 2, a three-stage gear transmission structure is formed. Without the idler gear 22, the main drive gear 21 would need to be designed to a larger size to achieve transmission. Adding the idler gear 22 can reduce the design size of the main drive gear 21, effectively reducing the overall volume of the conveyor. It also reduces the axial load on the rotary drive motor 16 and extends the motor's service life. Furthermore, it avoids excessive spacing between the heavy-duty roller turntable conveyor and the linear conveying track, ensuring a tight connection.

[0023] The width of the main drive gear 21 makes full use of the height of the slewing support 2. The rotary drive motor 16 is located above the main drive gear 21. At the same time, the upper part of the slewing support 2 is close to the conveying roller 9 and the lower part is close to the ground, which maximizes the compression of the overall height of the equipment and meets the design requirement of 215mm ultra-low conveying height.

[0024] The roller conveyor 7 consists of a mounting frame, a conveyor shaft 8, a conveyor roller 9, a synchronous chain 13, and a double-row sprocket 12. The mounting frame is fixedly connected to the connecting plate 5 and the intermediate support beam 28. Several conveyor shafts 8 are equidistantly mounted on the inner side of the mounting frame, and one end of each conveyor shaft 8 is fixedly equipped with a double-row sprocket 12. A synchronous chain 13 is installed between two adjacent double-row sprockets 12. One end of one of the conveyor shafts 8 is fixedly mounted to the output shaft of the conveyor motor 10. A conveyor roller 9 is fixedly mounted on the surface of the conveyor shaft 8, and both ends of the conveyor roller 9 have a flanged structure.

[0025] A through groove 23 is provided on the bottom fixing plate 3, and an adjustable support leg 11 is installed on the bottom fixing plate 3. The bottom end of the adjustable support leg 11 passes through the through groove 23. Multiple mounting through holes are provided on both the bottom fixing plate 3 and the annular base 1.

[0026] To achieve precise adjustment of the equipment's height and level, and to ensure stable material conveying and seamless connection with the linear conveyor, this design adopts an inner center anchor design. The outer ring of the slewing support 2 is rigidly connected to the bottom of the bottom fixed plate 3. Adjustable feet 11 are provided on the bottom fixed plate 3. All adjustable feet 11 are arranged within the range of the inner ring of the slewing support 2. The height and level of the entire equipment can be adjusted by adjusting the adjustable feet 11.

[0027] If the feet are arranged on the outer side of the outer ring of the slewing support 2 as in traditional equipment, if they are too close to the center of rotation, they will interfere with the idler wheel 22 and the main drive gear 21. If they are too far from the center of rotation, the bottom fixing plate 3 is prone to deformation under heavy load conditions, resulting in unreliable structure.

[0028] All adjustable feet 11 are arranged within the inner ring of the slewing support 2 to avoid interference with the gear transmission structure below. At the same time, the heavy load is concentrated in the center to prevent the bottom fixed plate 3 from deforming under long-term pressure.

[0029] The inner ring of the slewing support 2 is fixedly connected to the connecting plate 5, and the outer gear ring of the slewing support 2 is fixedly connected to the bottom fixing plate 3.

[0030] The annular base 1 is located directly below the rotating outer ring 4. The diameter of the annular base 1 is the same as the diameter of the rotating outer ring 4. An mounting screw 17 is fixedly installed on the annular base 1, and an auxiliary support wheel 18 is installed on the annular base 1 through the mounting screw 17. The auxiliary support wheel 18 is in contact with the lower surface of the rotating outer ring 4.

[0031] A protective housing 19 is bolted to the C-shaped plate 6. One of the protective housings 19 has a through slot for avoiding the conveyor motor 10 and the rotary drive motor 16.

[0032] The mounting bracket is equipped with a limit switch 29, which is used to accurately detect the position of the material on the conveyor and provide signal basis for the start and stop of the roller and the rotation of the turntable. A switch mounting bracket is installed on the upper surface of the annular base 1. The switch mounting bracket is equipped with a position detection photoelectric switch 25 and a protection photoelectric switch 26. A baffle plate located outside the positioning cylinder 14 is provided on the inner side of the rotating outer ring 4. The baffle plate cooperates with the position detection photoelectric switch 25 and the protection photoelectric switch 26. When the turntable rotates 90° normally to the position, the baffle plate moves to the position of the position detection photoelectric switch 25 and blocks the infrared beam of the position detection photoelectric switch 25. If the turntable over-rotates out of control, the baffle plate will cross the range of the position detection photoelectric switch 25 and block the protection photoelectric switch 26, triggering the protection shutdown. The whole machine is controlled by PLC.

[0033] A positioning block mounting bracket 24 is installed on the annular base 1, and a positioning block 27 is fixedly connected to the positioning block mounting bracket 24.

[0034] By using the photoelectric switch 25 for positioning detection and the photoelectric switch 26 for protection, the photoelectric switch 25 for positioning detection is installed at the bottom of the conveyor to detect whether the turntable has rotated to the correct position. At the same time, the photoelectric switch 26 for protection is added next to it. When the photoelectric switch 25 for positioning detection fails, the rotation power of the turntable can be cut off to prevent the turntable from continuing to rotate and breaking the wires on the turntable.

[0035] A positioning cylinder 14 is fixedly installed on the intermediate support beam 28, and the end diameter of the positioning cylinder 14 is the same as the inner diameter of the positioning block 27, and the end of the positioning cylinder 14 extends into the inner cavity of the positioning block 27. Since the weight of the material and the weight of the entire turntable are both applied to the slewing support 2, if the connection plate 5 is only connected to the inner ring of the slewing support 2, the connection plate 5 will be prone to compression deformation. Therefore, an intermediate support beam 28 structure is designed to strengthen the fixed connection between the turntable and the slewing support 2.

[0036] The intermediate support beam 28 is made of 10mm thick steel plate and 40×40×3 square steel pipe welded together. The intermediate support beam 28 runs horizontally through the two C-shaped plates 6 and is welded to the outer rotating ring 4 as a whole. It evenly transfers the weight of the two C-shaped plates 6 to the inner ring of the middle slewing support 2, optimizes the overall stress structure of the equipment, and avoids deformation of the connecting plate 5 under heavy load. The intermediate support beam 28 is precisely positioned in the gap between the conveying rollers 9, making full use of the narrow installation space without affecting the material conveying and the operation of the conveying rollers 9; In the conveying direction, the bottom of the C-shaped plates 6 on both sides is supported by the mounting screws 17 and auxiliary support wheels 18 below the rotating outer ring 4. The mounting screws 17 and auxiliary support wheels 18 form an adjustable height directional wheel, making the rotation of the turntable more stable and reliable.

[0037] Since the idler wheel 22 rotates synchronously with the platform and the lower surface of the idler wheel 22 is only 26mm from the ground, if a whole plate is used and the height is adjusted from the outside, the whole plate is prone to deformation under long-term heavy load. Moreover, the 26mm spacing cannot be used to add reinforcing ribs. By adjusting the nut on the mounting screw 17, the height of the auxiliary support wheel 18 can be adjusted. The auxiliary support wheel 18 supports the rotating outer ring 4, which is suitable for heavy load conditions and has no risk of deformation. With the cooperation of positioning cylinder 14 and positioning block mounting bracket 24, when the entire turntable rotates to the specified angle, positioning cylinder 14 extends and inserts into the inner cavity of positioning block mounting bracket 24, and completes the turntable locking, preventing the turntable from shaking during material conveying, and greatly improving the positioning accuracy of the turntable.

[0038] The equipment is equipped with a PLC controller. After the material triggers the limit switch 29, the PLC issues a rotation command. When the turntable rotates to the 90° target position, the baffle plate that rotates synchronously with the turntable simultaneously blocks the position detection photoelectric switch 25, and the sensor outputs a position signal synchronously. After receiving the signal, the PLC immediately stops the rotation drive motor 16 and delays the positioning cylinder 14 to extend and insert into the inner cavity of the positioning block 27 for mechanical locking. If the protection photoelectric switch 26 triggers a signal, the PLC determines that the main detection photoelectric switch 25 is faulty, and the whole machine stops urgently to prevent the turntable from going out of control and breaking the cable.

[0039] The diameter of the conveying roller 9 is 76mm, the effective conveying length of the roller conveyor 7 is 3121mm, and the effective conveying width is 1580mm. The rated load of the equipment is 3 tons, and under the lowest condition, the material conveying height of the upper surface of the conveying roller 9 from the ground is 215mm, and the lower surface of the idler wheel 22 is only 26mm from the ground. The dimensions of the conveyed material are: 3000mm in length and 1580mm in width.

[0040] In summary, when using this high-load low-position roller rotary conveyor mechanism, the adjustable support legs 11 and auxiliary support wheels 18 are first adjusted according to the actual site conditions. The adjustment method is to adjust the nut structure. The bottom fixing plate 3 and the ring base 1 are installed on the ground using bolts. The conveyor motor 10 is started, and the conveyor motor 10 drives one of the conveyor shafts 8 to rotate. Under the transmission cooperation of the double row sprockets 12 and synchronous chain 13 at the end of the conveyor shaft 8, several conveyor shafts 8 and conveyor rollers 9 are driven to run. This is also the traditional roller conveyor structure. The material is conveyed by the basic roller conveyor and then enters the heavy-duty roller turntable conveyor. When the material enters the heavy-duty roller turntable conveyor, the position is detected by the limit switch 29 and controlled by the controller. The rotary drive motor 16 starts to drive the main drive gear 21 to rotate. Under the action of the idler wheel 22 and the outer gear ring of the slewing support 2, the outer ring 4 and its upper structure will rotate 90°, and the material can be conveyed in another direction.

[0041] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-load-bearing low-position roller rotary conveyor mechanism, comprising an annular base (1), a bottom fixing plate (3), and a roller conveyor (7), characterized in that: The bottom fixing plate (3) is equipped with a rotary support (2) on top, and a connecting plate (5) is fitted on top of the rotary support (2). A roller conveyor (7) is fixedly installed on the connecting plate (5). A rotating outer ring (4) is fixedly connected to the outer sides of both ends of the connecting plate (5). C-shaped plates (6) are installed on both sides of the upper surface of the rotating outer ring (4). A middle support beam (28) is fixedly installed on the C-shaped plate (6). The middle support beam (28) is fixedly installed with the rotating outer ring (4), and the middle support beam (28) passes through the roller conveyor (7) and is connected to the roller conveyor (7). A motor mounting plate (15) is fixedly installed on the side of the intermediate support beam (28). A rotary drive motor (16) is mounted on the motor mounting plate (15), and the output shaft of the rotary drive motor (16) passes through the motor mounting plate (15) and is fixedly mounted with a main drive gear (21). A mounting shaft (20) is rotatably mounted on the motor mounting plate (15), and an idler wheel (22) that meshes with the main drive gear (21) and the external gear ring of the slewing support (2) is fixedly mounted on the mounting shaft (20). A conveyor motor (10) is also fixedly mounted on the outside of the intermediate support beam (28). The conveyor motor (10) is used to drive the roller conveyor (7).

2. The high-load-bearing low-position roller rotary conveying mechanism according to claim 1, characterized in that: The roller conveyor (7) consists of a mounting frame, a conveying shaft (8), a conveying roller (9), a synchronous chain (13), and a double-row sprocket (12). The mounting frame is fixedly connected to the connecting plate (5) and the intermediate support beam (28). Several conveying shafts (8) are equidistantly rotated and installed inside the mounting frame. One end of each conveying shaft (8) is fixedly equipped with a double-row sprocket (12), and a synchronous chain (13) is installed between two adjacent double-row sprockets (12). One end of one of the conveying shafts (8) is fixedly assembled with the output shaft of the conveying motor (10). The surface of the conveying shaft (8) is fixedly equipped with a conveying roller (9), and both ends of the conveying roller (9) have a flanged structure.

3. The high-load-bearing low-position roller rotary conveying mechanism according to claim 1, characterized in that: The inner ring of the slewing support (2) is fixedly connected to the connecting plate (5), and the outer gear ring of the slewing support (2) is fixedly connected to the bottom fixing plate (3).

4. The high-load-bearing low-position roller rotary conveying mechanism according to claim 1, characterized in that: The bottom fixing plate (3) has a through groove (23), and an adjustable support foot (11) is installed on the bottom fixing plate (3). The bottom end of the adjustable support foot (11) passes through the through groove (23). The bottom fixing plate (3) and the annular base (1) both have multiple mounting through holes.

5. The high-load-bearing low-position roller rotary conveying mechanism according to claim 1, characterized in that: The annular base (1) is located directly below the rotating outer ring (4). The diameter of the annular base (1) is the same as the diameter of the rotating outer ring (4). An installation screw (17) is fixedly installed on the annular base (1), and an auxiliary support wheel (18) is installed on the annular base (1) through the installation screw (17). The auxiliary support wheel (18) contacts the lower surface of the rotating outer ring (4) to form support.

6. The high-load-bearing low-position roller rotary conveying mechanism according to claim 1, characterized in that: A protective shell (19) is bolted onto the C-shaped plate (6), and one of the protective shells (19) has a through slot for avoiding the conveyor motor (10) and the rotary drive motor (16).

7. The high-load-bearing low-position roller rotary conveying mechanism according to claim 2, characterized in that: A limit switch (29) is installed on the mounting bracket.

8. The high-load-bearing low-position roller rotary conveying mechanism according to claim 7, characterized in that: A switch mounting bracket is installed on the upper surface of the annular base (1). The switch mounting bracket is equipped with a position detection photoelectric switch (25) and a protection photoelectric switch (26). A positioning block mounting bracket (24) is installed on the annular base (1). A positioning block (27) is fixedly connected to the positioning block mounting bracket (24).

9. The high-load-bearing low-position roller rotary conveying mechanism according to claim 1, characterized in that: A positioning cylinder (14) is fixedly installed on the intermediate support beam (28), and the end diameter of the positioning cylinder (14) is the same as the inner diameter of the positioning block (27), and the end of the positioning cylinder (14) extends into the inner cavity of the positioning block (27).

10. A high-load-bearing low-position roller rotary conveying mechanism according to claim 2, characterized in that: The diameter of the conveying roller (9) is 76mm, the effective conveying length of the roller conveyor (7) is 3121mm, the effective conveying width is 1580mm, and when the bottom fixed plate (3) is in contact with the ground, the material conveying height of the upper surface of the conveying roller (9) from the ground is 215mm, and the lower surface of the idler wheel (22) is 26mm from the ground.

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