Differential reversing conveyor

Abstract

The present application relates to conveying equipment technical field, disclose a differential gear change conveyer, including: frame, the frame is equipped with first conveying belt, second conveying belt and third conveying belt, the first conveying belt transmission speed is V1, the second conveying belt transmission speed is V2, the third conveying belt transmission speed is V3, V1=V2 ≠ V3;First drive shaft, the first drive shaft with the first conveying belt, the second conveying belt transmission connection, the first drive shaft is equipped with first synchronous wheel;Second drive shaft, the second drive shaft with the third conveying belt transmission connection, the second drive shaft is equipped with second synchronous wheel;Motor, the motor with the first synchronous wheel, the second synchronous wheel band transmission connection.The present application is driven by single motor to complete uniform speed conveying and differential gear change through three conveying belts, improves the stability of the whole machine operation, and reduces the equipment manufacturing cost.

Description

Technical Field

[0001] This invention relates to the technical field of conveying equipment, and in particular to a differential reversing conveyor. Background Technology

[0002] A differential reversing conveyor is a conveying device that uses the speed difference between two conveyor belts to automatically change the direction of material transport during the conveying process. It is widely used in logistics sorting, food processing, packaging production lines, automated assembly, and other scenarios that require the reversing of material transport. Its working principle typically involves two parallel conveyor belts traveling at different speeds to transport material, causing relative displacement on both sides of the material, thereby driving the material to rotate and change direction during transport.

[0003] When materials enter the differential conveying zone, if they are immediately subjected to the speed difference between the two sides, they are prone to starting to rotate before fully entering the conveyor belt, leading to unstable material posture, affecting turning accuracy, and even causing deviation or falling. Therefore, existing differential reversing conveyors usually have a uniform speed conveying section at the front end of the differential conveying section, so that the materials enter the conveying zone at the same speed before entering the differential conveying section for turning, thereby improving the stability and accuracy of the reversing. However, in existing differential reversing conveyors, the differential conveying section mostly uses two motors to drive two parallel conveyor belts to form the required speed difference, while the uniform speed conveying section at the front usually requires an additional motor for driving, resulting in at least three motors working together in the whole machine. On the one hand, multiple motors need to be synchronously controlled and coordinated. When the control accuracy is insufficient or speed deviation occurs during operation, it can easily affect the material conveying and reversing effect, increasing the equipment failure rate and maintenance difficulty. On the other hand, multiple motors and their supporting control systems increase equipment manufacturing costs, installation space, and energy consumption, which is not conducive to the miniaturization and economic design of the equipment. Summary of the Invention

[0004] The technical problem to be solved by this invention is to address the issues of high cost and high failure rate of differential conveyor motor drives.

[0005] To solve the above-mentioned technical problems, the present invention provides a differential reversing conveyor, comprising: a frame, wherein the frame is provided with a first conveyor belt, a second conveyor belt and a third conveyor belt, the second conveyor belt and the third conveyor belt being arranged sequentially on the same side of the first conveyor belt, the first conveyor belt, the second conveyor belt and the third conveyor belt being on the same plane and extending in the same direction, the transmission speed of the first conveyor belt being V1, the transmission speed of the second conveyor belt being V2, and the transmission speed of the third conveyor belt being V3, V1=V2≠V3; a first drive shaft, the first drive shaft being drivenly connected to the first conveyor belt and the second conveyor belt, the first drive shaft being provided with a first synchronous pulley; a second drive shaft, the second drive shaft being drivenly connected to the third conveyor belt, the second drive shaft being provided with a second synchronous pulley, the diameter of the second synchronous pulley being greater than or less than the diameter of the first synchronous pulley; and a motor, the output shaft of the motor being drivenly connected to the first synchronous pulley and the second synchronous pulley.

[0006] Furthermore, the motor is also equipped with a transmission wheel and a belt. The transmission wheel is mounted on the output shaft. The surfaces of the transmission wheel, the first synchronous wheel, and the second synchronous wheel are all provided with annular grooves. The belt drive is disposed within the annular grooves.

[0007] Furthermore, a rack is provided at the bottom of the annular groove, the rack extends along the length of the annular groove, and the rack abuts against the belt.

[0008] Furthermore, it also includes an adjustment assembly, which includes a base, a slide rod, a fixing member, a support seat, and an adjustment wheel. The base is disposed on the frame, the slide rod is slidably disposed on the base, and the sliding direction of the slide rod intersects with the belt. The fixing member is used to fix the slide rod on the base, the support seat is disposed on the end of the slide rod near the belt, and the adjustment wheel is rotatably disposed on the support seat, with the outer wheel surface of the adjustment wheel abutting against the belt.

[0009] Furthermore, the adjustment assembly also includes a guide wheel, which is disposed on the frame. The outer surface of the guide wheel abuts against the belt. The guide wheel is located between the transmission wheel and the second synchronous wheel. The adjustment wheel is located between the transmission wheel and the first synchronous wheel. The distance between the guide wheel and the adjustment wheel is less than or equal to the diameter of the transmission wheel.

[0010] Furthermore, both the first drive shaft and the second drive shaft are equipped with rollers. The rollers of the first drive shaft are in drive contact with the first conveyor belt and the second conveyor belt, and the rollers of the second drive shaft are in drive contact with the third conveyor belt.

[0011] Furthermore, the first conveyor belt, the second conveyor belt, and the third conveyor belt are all provided with guide strips, which correspond to the side of the roller.

[0012] Furthermore, it also includes a first stop and a second stop, both of which are disposed on the frame. The first stop is located above the first conveyor belt, and the second stop is located above the second conveyor belt and the third conveyor belt.

[0013] Furthermore, the distance between the first and second guard edges gradually decreases along the transport direction and then remains constant.

[0014] Furthermore, it also includes multiple support legs, which are disposed at the bottom of the frame, with at least one support leg below the first conveyor belt, the second conveyor belt, and the third conveyor belt.

[0015] Compared with existing technologies, the differential speed reversing conveyor of this invention has the following advantages: By setting a first conveyor belt, a second conveyor belt, and a third conveyor belt on the frame, and using a first drive shaft to simultaneously drive the first and second conveyor belts, the first and second conveyor belts maintain the same conveying speed, forming a uniform speed conveying section. This allows the material to first enter the conveying area stably, and then enter the differential speed conveying section for turning, effectively avoiding the problem of unstable posture and reduced turning accuracy caused by the material turning immediately upon entering the conveyor belt. Simultaneously, the third conveyor belt is driven by the second drive shaft, and the motor output shaft is connected to conveyors of different diameters... The first and second synchronous pulleys drive the first and third conveyor belts, creating a preset speed difference between them. This changes the relative speed of the material on both sides, achieving stable material reversal. By using a single motor to simultaneously drive the three conveyor belts to complete uniform conveying and differential reversal, compared to the existing technology that uses multiple motors to drive each conveyor belt separately, this not only reduces the number of drive motors and avoids coordination failures caused by multi-motor synchronous control, but also improves the stability and reliability of the entire machine. Furthermore, it reduces equipment manufacturing costs, installation space, and energy consumption, and has the advantages of compact structure, simple transmission, convenient maintenance, and good economy. Attached Figure Description

[0016] Figure 1 This is a perspective view of the differential reversing conveyor provided by the present invention; Figure 2 This is a magnified view of part of Figure 1; Figure 3 This is a top view of the differential reversing conveyor provided by the present invention; Figure 4 This is a first cross-sectional view of the differential reversing conveyor provided by the present invention; Figure 5This is a second cross-sectional view of the differential reversing conveyor provided by the present invention; Figure 6 This is a third cross-sectional view of the differential reversing conveyor provided by the present invention.

[0017] The correspondence between the reference numerals and the component names is as follows: 1. Frame; 11. First conveyor belt; 12. Second conveyor belt; 13. Third conveyor belt; 2. First drive shaft; 21. First synchronous pulley; 3. Second drive shaft; 31. Second synchronous pulley; 32. Rack; 301. Annular groove; 4. Motor; 41. Transmission wheel; 42. Belt; 5. Adjustment assembly; 51. Base; 52. Slide rod; 53. Fixing component; 54. Support seat; 55. Adjusting wheel; 56. Guide wheel; 6. Roller; 7. First side guard; 8. Second side guard; 9. Support leg. Detailed Implementation

[0018] The following description, in conjunction with the accompanying drawings, illustrates exemplary embodiments of the present invention, including various details to aid understanding. These details should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope of the invention. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0019] like Figures 1 to 6 As shown in the figure, an embodiment of the present invention discloses a differential reversing conveyor, including: a frame 1, the frame 1 having a first conveyor belt 11, a second conveyor belt 12 and a third conveyor belt 13, the second conveyor belt 12 and the third conveyor belt 13 being arranged sequentially on the same side of the first conveyor belt 11, the first conveyor belt 11, the second conveyor belt 12 and the third conveyor belt 13 being on the same plane and extending in the same direction, the third conveyor belt 13 being able to convey items to the second conveyor belt 12, the transmission speed of the first conveyor belt 11 being V1, and the transmission speed of the second conveyor belt 12 being V1. V2 is the transmission speed of the third conveyor belt 13, and V3 is the transmission speed of the third conveyor belt 13, where V1 = V2 ≠ V3; the first drive shaft 2 is connected to the first conveyor belt 11 and the second conveyor belt 12, and the first drive shaft 2 is provided with a first synchronous pulley 21; the second drive shaft 3 is connected to the third conveyor belt 13, and the second drive shaft 3 is provided with a second synchronous pulley 31, the diameter of which is greater than or less than the diameter of the first synchronous pulley 21; the motor 4 is connected to the first synchronous pulley 21 and the second synchronous pulley 31 by belt drive.

[0020] The differential reversing conveyor of this application, by setting a first conveyor belt 11, a second conveyor belt 12, and a third conveyor belt 13 on the frame 1, and using a first drive shaft 2 to simultaneously drive the first conveyor belt 11 and the second conveyor belt 12, keeps the first conveyor belt 11 and the second conveyor belt 12 at the same conveying speed, forming a uniform speed conveying section. This allows the material to enter the conveying area stably first, and then enter the differential speed conveying section for turning, effectively avoiding the problem of unstable posture and reduced turning accuracy caused by the material turning as soon as it enters the conveyor belt. At the same time, the third conveyor belt 13 is driven by the second drive shaft 3, and the output shaft of the motor 4 is connected to the first synchronous pulleys of different diameters. The first conveyor belt 11 and the third conveyor belt 13 are driven by the second synchronous pulley 31, which creates a preset speed difference between the first conveyor belt 11 and the third conveyor belt 13, thereby changing the relative speed of the material on both sides and realizing stable rotation and reversal of the material. By using a single motor 4 to drive the three conveyor belts simultaneously to complete uniform conveying and differential reversal, compared with the existing technology of using multiple motors 4 to drive each conveyor belt separately, it not only reduces the number of drive motors 4 and avoids coordination failures caused by synchronous control of multiple motors 4, but also improves the stability and reliability of the whole machine operation, and reduces the equipment manufacturing cost, installation space and energy consumption. It has the advantages of compact structure, simple transmission, convenient maintenance and good economy.

[0021] It should be noted that the output shaft of motor 4 refers to the section of the rotor shaft of motor 4 that protrudes outside the motor 4 housing and is used to connect the load. The linear speeds at which the first drive shaft 2 and the second drive shaft 3 drive the conveyor belt are equal.

[0022] Specifically, the first conveyor belt 11, the second conveyor belt 12, and the third conveyor belt 13 are each equipped with their own independently operating driven rollers 6 to facilitate conveyor belt movement. The width and length of the first conveyor belt 11, the second conveyor belt 12, and the third conveyor belt 13 can be increased, currently reaching a maximum width of 2400mm and a length of 4500mm, capable of conveying large materials. To prevent the conveyor belts from turning as soon as the material enters the conveyor, a constant-speed conveying section is used, driven by the same drive shaft for the first conveyor belt 11 and the second conveyor belt, ensuring that the conveyor belts only begin to turn after the material has fully entered the conveyor line. It should be noted that the conveyor belts in this application are not fixed and can be adjusted according to the size of the material and actual needs.

[0023] Specifically, the frame 1 is provided with side plates and trays fixed to the side plates by bolts; the trays can also be fixed to the side plates by snap-fit, with one side of the tray fixed to the side plate and the other side snapped to the crossbeam of the frame 1, making the space compact and easy to install.

[0024] Specifically, the derivation process for calculating the length required for the material to complete the turn on frame 1 is as follows: L is the length of the material, points A and B are the four equal division points of the material's central axis, and the distance between points A and B is L / 2, which is equivalent to Sa-Sb=L / 2. Therefore, the time required for the material to rotate 90° is T=△S / △V=(Sa-Sb) / (Va-Vb)=(L / 2) / (Va-Vb); therefore, the distance required for the material to be straightened is S1=Va*T. The distance from point A to the edge of the material is L / 4, so the minimum length required for the turn is S=S1+L / 4=(Va*L) / [2(Va-Vb)]+L / 4.

[0025] like Figure 1 and Figure 2 As shown, in an optional embodiment of the present invention, the motor 4 is further provided with a transmission wheel 41 and a belt 42. The transmission wheel 41 is disposed on the output shaft. The surfaces of the transmission wheel 41, the first synchronous wheel 21 and the second synchronous wheel 31 are all provided with annular grooves 301. The belt 42 is driven within the annular grooves 301.

[0026] By setting a transmission wheel 41 on the output shaft of motor 4, and connecting it to the first synchronous pulley 21 and the second synchronous pulley 31 via belt 42, and with the wheel surfaces of the transmission wheel 41, the first synchronous pulley 21 and the second synchronous pulley 31 all having annular grooves 301 adapted to the belt 42, the belt 42 can be stably confined within the annular grooves 301 for transmission, effectively preventing axial displacement, slippage or detachment of the belt 42 during high-speed operation, thus improving the stability and transmission efficiency of power transmission. At the same time, the belt 42 transmission method can realize the synchronous driving of the first drive shaft 2 and the second drive shaft 3 by motor 4, which has a simple structure, is easy to assemble, and allows for adjustment of the running speed of each conveyor belt by changing synchronous pulleys of different diameters, with good adaptability and maintenance convenience, thereby further ensuring the stability and reliability of uniform speed conveying and differential speed reversal processes, and improving the reliability and service life of the whole machine.

[0027] like Figure 2 and Figure 6 As shown, in an optional embodiment of the present invention, a rack 32 is provided at the bottom of the annular groove 301. The rack 32 extends along the length direction of the annular groove 301 and abuts against the belt 42.

[0028] By setting a rack 32 extending along the length of the annular groove 301 at the bottom of the drive wheel 41, the first synchronous pulley 21, and the second synchronous pulley 31, and making the rack 32 abut against the belt 42, the traditional friction transmission between the belt 42 and each pulley is further transformed into a meshing transmission. This effectively increases the engagement force between the belt 42 and each pulley, avoids slippage during load changes, start-stop, or high-speed operation, improves power transmission efficiency and transmission accuracy, and ensures that the first drive shaft 2 and the second drive shaft 3 can operate stably according to the preset transmission ratio. This ensures that each conveyor belt maintains a stable speed relationship, making the uniform material conveying and differential reversing process smoother and more reliable. At the same time, the rack 32 also has a certain guiding and limiting function for the belt 42, which can reduce belt deviation and wear, extend the service life of the belt 42 and the drive wheel 41, and improve the stability and reliability of the whole machine operation.

[0029] like Figure 1 and Figure 2 As shown, in an optional embodiment of the present invention, the differential reversing conveyor of this application further includes an adjustment component 5. The adjustment component 5 includes a base 51, a slide rod 52, a fixing member 53, a support seat 54, and an adjustment wheel 55. The base 51 is disposed on the frame 1, the slide rod 52 is slidably disposed on the base 51, and the sliding direction of the slide rod 52 intersects with the belt 42. The fixing member 53 is used to fix the slide rod 52 on the base 51. The support seat 54 is disposed on one end of the slide rod 52 near the belt 42. The adjustment wheel 55 is rotatably disposed on the support seat 54, and the outer wheel surface of the adjustment wheel 55 abuts against the belt 42.

[0030] By setting the adjustment component 5, the base 51, slide bar 52, fixing part 53, support seat 54 and adjustment wheel 55 cooperate with each other to make the adjustment wheel 55 abut against the belt 42, and the position of the adjustment wheel 55 can be controlled by sliding the slide bar 52 relative to the base 51, thereby changing the degree of pressure of the adjustment wheel 55 on the belt 42 and realizing flexible adjustment of the belt 42 tension. When the belt 42 stretches or loosens due to long-term operation, the movable slide bar 52 can press the adjusting wheel 55 against the belt 42 to restore the appropriate tension. The slide bar 52 is reliably fixed by the fixing part 53 to prevent displacement after adjustment. This effectively prevents problems such as slippage, deviation, or unstable transmission of the belt 42 during operation, and improves the transmission reliability and power transmission efficiency between the belt 42 and each synchronous pulley. At the same time, the adjusting component 5 has a simple structure and is easy to adjust. The tension adjustment can be completed without disassembling the belt 42, which not only reduces the difficulty of equipment maintenance and shortens the downtime for maintenance, but also helps to extend the service life of the belt 42 and transmission components, further ensuring the stability of uniform speed conveying and differential speed reversing processes, and improving the reliability of the whole machine operation.

[0031] Specifically, the fastener 53 can be one of a nut, a buckle, or a limiting band.

[0032] like Figure 1 and Figure 2 As shown, in an optional embodiment of the present invention, the adjusting component 5 further includes a guide wheel 56, which is disposed on the frame 1. The outer wheel surface of the guide wheel 56 abuts against the belt 42. The guide wheel 56 is located between the transmission wheel 41 and the second synchronous wheel 31. The adjusting wheel 55 is located between the transmission wheel 41 and the first synchronous wheel 21. The distance between the guide wheel 56 and the adjusting wheel 55 is less than or equal to the diameter of the transmission wheel 41.

[0033] By adding a guide wheel 56 to the frame 1, and positioning the guide wheel 56 between the transmission wheel 41 and the second synchronous wheel 31, and the adjusting wheel 55 between the transmission wheel 41 and the first synchronous wheel 21, with the distance between the guide wheel 56 and the adjusting wheel 55 being less than or equal to the diameter of the transmission wheel 41, the belt 42 is effectively guided and supported on both sides of the transmission wheel 41. This optimizes the running path of the belt 42, increases the wrap angle between the belt 42 and the transmission wheel 41, and improves the contact area and friction between the belt 42 and the transmission wheel 41, effectively preventing the belt 42 from slipping during power transmission. The slippage phenomenon improves power transmission efficiency and transmission stability. At the same time, the guide wheel 56 and the adjusting wheel 55 cooperate to guide and tension the belt 42, which can reduce the vibration and deviation of the belt 42 during operation, ensure that the belt 42 always maintains a stable motion trajectory, and enable the first synchronous pulley 21 and the second synchronous pulley 31 to continuously obtain stable driving force. This ensures that the preset speed relationship between each conveyor belt is maintained, improves the accuracy and stability of uniform material conveying and differential speed reversal, and further extends the service life of the belt 42 and each transmission component, thereby improving the reliability of the whole machine operation.

[0034] like Figure 4 and Figure 5 As shown, in an optional embodiment of the present invention, both the first drive shaft 2 and the second drive shaft 3 are provided with rollers 6. The rollers 6 of the first drive shaft 2 are in drive contact with the first conveyor belt 11 and the second conveyor belt 12, and the rollers 6 of the second drive shaft 3 are in drive contact with the third conveyor belt 13.

[0035] By installing rollers 6 on the first drive shaft 2 and the second drive shaft 3 respectively, with the rollers 6 on the first drive shaft 2 engaging with the first conveyor belt 11 and the second conveyor belt 12 respectively, and the rollers 6 on the second drive shaft 3 engaging with the third conveyor belt 13, the rotational power of the drive shaft can be directly and stably transmitted to each conveyor belt, achieving continuous and stable operation of the conveyor belts. The large contact area between the rollers 6 and the conveyor belts improves the efficiency of driving force transmission, reduces local stress concentration, lowers the possibility of conveyor belt slippage, ensures that the first conveyor belt 11 and the second conveyor belt 12 maintain a consistent conveying speed, and that the third conveyor belt 13 maintains a preset differential speed. This ensures that the material can first be conveyed at a uniform speed and then stably reversed at a differential speed, improving the accuracy and stability of material turning. Simultaneously, the rollers 6 have a uniform stress distribution and operate smoothly, which helps reduce vibration and wear during conveyor belt operation, extends the service life of the conveyor belts and drive shafts, and improves the reliability and durability of the entire machine.

[0036] Specifically, a roller 6 can be composed of two sub-rollers 6 joined together. The two sub-rollers 6 are connected and fixed to the support transmission assembly by screws, realizing two-axis linkage and segmented assembly. This effectively avoids the problem of a single roller 6 being too long and requiring a thicker shaft diameter, thus reducing material costs and processing expenses. The roller 6 of the first drive shaft 2 has the same diameter as the roller 6 of the second drive shaft 3.

[0037] In an optional embodiment of the present invention, the first conveyor belt 11, the second conveyor belt 12 and the third conveyor belt 13 are all provided with guide strips, and the guide strips correspond to the side of the roller 6.

[0038] By installing guide strips on the first conveyor belt 11, the second conveyor belt 12, and the third conveyor belt 13, and ensuring that the guide strips cooperate with the sides of the corresponding rollers 6, the guide strips can provide lateral guidance and limit the conveyor belts during operation. This effectively prevents the conveyor belts from running off-track due to long-term operation, load changes, or start-stop impacts, ensuring that the conveyor belts always run stably along the predetermined trajectory. At the same time, the cooperation between the guide strips and the sides of the rollers 6 can improve the positioning accuracy between the conveyor belts and the rollers 6, allowing the driving force output by the rollers 6 to be transmitted to the conveyor belts more evenly. This reduces friction and wear between the edges of the conveyor belts and the frame, and reduces problems such as jamming, detachment, or transmission failure caused by off-tracking. As a result, the first conveyor belt 11, the second conveyor belt 12, and the third conveyor belt 13 always maintain a stable speed relationship, ensuring that the material is conveyed at a uniform speed and that the differential speed reversal process is continuous and smooth, improving the material turning accuracy and the reliability of the entire machine operation.

[0039] like Figure 3 and Figure 4As shown, in an optional embodiment of the present invention, the differential reversing conveyor of this application further includes a first sidewall 7 and a second sidewall 8. Both the first sidewall 7 and the second sidewall 8 are disposed on the frame 1. The first sidewall 7 is located above the first conveyor belt 11, and the second sidewall 8 is located above the second conveyor belt 12 and the third conveyor belt 13.

[0040] By setting a first guard 7 and a second guard 8 on the frame 1, located above the first conveyor belt 11 and the second and third conveyor belts 12 and 13 respectively, the material is always guided and limited by the guards on both sides during conveying and reversing. When the material enters the differential reversing area, if the actual friction between the material and the conveyor belt is lower than the theoretical value due to factors such as material weight, material, bottom surface roughness, or contact area with the conveyor belt, the first guard 7 and the second guard 8 can provide lateral guidance and auxiliary constraint for the material. Together with the deflection force generated by the differential conveyor belt, they guide the material to complete a stable reversal, improving the success rate of reversing. At the same time, the two guards can also effectively limit the lateral deviation of the material, preventing the material from slipping, tilting, falling, or excessively deflecting during the reversing process, improving the stability of the material's running trajectory and the reversing accuracy, ensuring that the material can be continuously and smoothly conveyed and reversed, and further improving the overall conveying reliability and applicability of the machine.

[0041] Specifically, both the first retaining edge 7 and the second retaining edge 8 are elongated retaining edges.

[0042] like Figure 3 and Figure 5 As shown, in an optional embodiment of the present invention, the distance between the first guard 7 and the second guard 8 gradually decreases along the transport direction and then remains constant.

[0043] By gradually decreasing the distance between the first guard edge 7 and the second guard edge 8 along the material transport direction and then keeping it constant, the material has a gradually decreasing guiding space when entering the differential reversing area, avoiding abrupt compression of the material by the guard edges and improving the stability of the material entering the reversing area. As the material gradually deflects under the action of the differential conveyor belt, the guard edges on both sides can continuously guide and limit the material. When the actual friction between the material and the conveyor belt is lower than the theoretical value due to factors such as weight, material, and contact area, the guard edges can provide auxiliary guidance for the material, working together with the deflection force generated by the differential conveyor belt to complete the material reversing and improve the reliability of the reversing. At the same time, in the area where the guard edge spacing remains unchanged, the material that has completed or is close to completing the turning can be stably limited, preventing the material from over-turning or deviating due to inertia or continuous differential action, thereby improving the accuracy and consistency of the material reversing angle, ensuring that the material can complete the reversing conveying stably and continuously, and further improving the overall conveying stability and applicability of the machine.

[0044] like Figure 1 and Figure 5 As shown, in an optional embodiment of the present invention, the differential reversing conveyor of this application further includes a plurality of support legs 9, which are disposed at the bottom of the frame 1, with at least one support leg 9 below the first conveyor belt 11, the second conveyor belt 12 and the third conveyor belt 13.

[0045] By setting multiple support legs 9 at the bottom of the frame 1, and ensuring that each of the first conveyor belt 11, the second conveyor belt 12, and the third conveyor belt 13 is supported by at least one support leg 9, the corresponding areas of each conveyor belt can obtain reliable load-bearing support. This effectively improves the overall structural strength and stability of the frame 1, preventing deformation, swaying, or vibration caused by uneven stress during heavy material loading or long-term continuous operation. At the same time, the multiple support legs 9 disperse the load, reduce the local stress on the frame 1, and improve the load-bearing capacity and deformation resistance of the equipment. This ensures that the first conveyor belt 11, the second conveyor belt 12, and the third conveyor belt 13 always maintain a stable installation position and relative positional relationship. This helps maintain the preset speed coordination relationship between each conveyor belt, ensuring that the material can be stably conveyed at a uniform speed and reversed at a differential speed. This improves the material conveying accuracy and the reliability of the whole machine operation, and further extends the service life of the frame 1 and each conveying component.

[0046] The differential reversing conveyor provided in this application includes a frame 1, a first conveyor belt 11, a second conveyor belt 12, a third conveyor belt 13, a first drive shaft 2, a second drive shaft 3, and a motor 4. The frame 1 serves as the mounting support structure for all components. The first conveyor belt 11, second conveyor belt 12, and third conveyor belt 13 are all mounted on the frame 1, and the three conveyor belts are on the same horizontal plane and extend in the same direction to ensure continuous material transport. The first conveyor belt 11 is arranged parallel to the second conveyor belt 12 and the third conveyor belt 13, and the second conveyor belt 12 and the third conveyor belt 13 are connected in series along the material transport direction, allowing the third conveyor belt 13 to transport materials to the second conveyor belt 12, thus forming a conveying path consisting of a uniform speed transport section and a differential speed transport section. The first drive shaft 2 is connected to both the first conveyor belt 11 and the second conveyor belt 12, and a first synchronous pulley 21 is mounted on the first drive shaft 2. Since the first conveyor belt 11 and the second conveyor belt 12 are driven by the same first drive shaft 2, the two conveyor belts maintain the same operating speed. When material enters the equipment, it is first conveyed at a uniform speed by the first conveyor belt 11 and the second conveyor belt 12, ensuring that the material fully enters the conveying area and preventing deflection due to speed difference as soon as it enters the conveyor belt, thereby improving the stability of the subsequent reversing process. The second drive shaft 3 is connected to the third conveyor belt 13, and a second synchronous pulley 31 is mounted on the second drive shaft 3. The diameter of the second synchronous pulley 31 differs from that of the first synchronous pulley 21; it can be larger or smaller than the first synchronous pulley 21. When the diameter of the second synchronous pulley 31 is larger than that of the first synchronous pulley 21, the running speed of the third conveyor belt 13 is lower than that of the first conveyor belt 11; when the diameter of the second synchronous pulley 31 is smaller than that of the first synchronous pulley 21, the running speed of the third conveyor belt 13 is higher than that of the first conveyor belt 11, thus creating a preset speed difference between the first conveyor belt 11 and the third conveyor belt 13.

[0047] Motor 4 is mounted on frame 1, and its output shaft is connected to the first synchronous pulley 21 and the second synchronous pulley 31 via belt drive. After motor 4 starts, it simultaneously drives the first synchronous pulley 21 and the second synchronous pulley 31 to rotate, thus synchronously powering the first drive shaft 2 and the second drive shaft 3. Because the diameters of the first synchronous pulley 21 and the second synchronous pulley 31 are different, the two drive shafts achieve different speeds even when motor 4 rotates at the same speed. This results in the first conveyor belt 11 and the third conveyor belt 13 having different conveying speeds, while the first conveyor belt 11 and the second conveyor belt 12 always maintain the same speed. When the equipment is working, the material first enters the uniform speed conveying area formed by the first conveyor belt 11 and the second conveyor belt 12. Since the speed of the two conveyor belts is the same, the material is conveyed in a stable straight line until the material is completely in the conveying area. Then, the material enters the differential speed conveying area formed by the first conveyor belt 11 and the third conveyor belt 13. Since the running speed of the two conveyor belts is different, different relative motion speeds are generated between the two sides of the material and the conveyor belts, so that the material is subjected to deflection torque and gradually rotates around its own center of gravity, realizing automatic reversal of the material during the conveying process. The material can be conveyed in a reversal range of 0 degrees to 180 degrees according to the speed difference between the two conveyor belts.

[0048] The differential reversing conveyor of this application uses only one motor 4 to simultaneously drive the first conveyor belt 11, the second conveyor belt 12, and the third conveyor belt 13 to complete the work. The first drive shaft 2 ensures that the first conveyor belt 11 and the second conveyor belt 12 form a uniform speed conveying section, while the different transmission ratios of the first synchronous pulley 21 and the second synchronous pulley 31 enable the first conveyor belt 11 and the third conveyor belt 13 to form a differential speed conveying section. This achieves a conveying process where materials first enter at a uniform speed and then undergo differential speed reversal. Compared to the existing technology that uses three motors 4 to drive the uniform speed conveying section and the differential speed conveying section respectively, this embodiment reduces the number of drive motors 4, avoids the problem of synchronous coordination and control between multiple motors 4, reduces equipment manufacturing costs and failure rates, and improves the stability, reliability, and economy of the overall machine operation.

[0049] It should be understood that the various forms of processes shown above can be used to reorder, add, or delete steps. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this invention can be achieved, and this is not limited herein.

[0050] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the principles of this invention should be included within the scope of protection of this invention.

Claims

1. A differential reversing conveyor, characterized in that, include: The frame includes a first conveyor belt, a second conveyor belt, and a third conveyor belt. The second and third conveyor belts are arranged sequentially on the same side of the first conveyor belt. The first, second, and third conveyor belts are all on the same plane and extend in the same direction. The transmission speed of the first conveyor belt is V1, the transmission speed of the second conveyor belt is V2, and the transmission speed of the third conveyor belt is V3, where V1 = V2 ≠ V3. A first drive shaft is connected to the first conveyor belt and the second conveyor belt, and the first drive shaft is provided with a first synchronous pulley; A second drive shaft is connected to the third conveyor belt. The second drive shaft is equipped with a second synchronous pulley, the diameter of which is greater than or less than the diameter of the first synchronous pulley. The motor has its output shaft connected to the first synchronous pulley and the second synchronous pulley via belt drive.

2. The differential reversing conveyor according to claim 1, characterized in that, The motor is also equipped with a drive wheel and a belt. The drive wheel is mounted on the output shaft. The surfaces of the drive wheel, the first synchronous pulley, and the second synchronous pulley are all provided with annular grooves. The belt drive is located within the annular grooves.

3. The differential reversing conveyor according to claim 2, characterized in that, A toothed rack is provided at the bottom of the annular groove, the toothed rack extends along the length of the annular groove, and the toothed rack abuts against the belt.

4. The differential reversing conveyor according to claim 2, characterized in that, It also includes an adjustment assembly, which includes a base, a slide rod, a fixing member, a support base, and an adjustment wheel. The base is disposed on the frame, the slide rod is slidably disposed on the base, and the sliding direction of the slide rod intersects with the belt. The fixing member is used to fix the slide rod on the base, the support base is disposed on the end of the slide rod near the belt, and the adjustment wheel is rotatably disposed on the support base, with the outer wheel surface of the adjustment wheel abutting against the belt.

5. The differential reversing conveyor according to claim 4, characterized in that, The adjustment assembly also includes a guide wheel, which is disposed on the frame. The outer surface of the guide wheel abuts against the belt. The guide wheel is located between the transmission wheel and the second synchronous wheel. The adjustment wheel is located between the transmission wheel and the first synchronous wheel. The distance between the guide wheel and the adjustment wheel is less than or equal to the diameter of the transmission wheel.

6. The differential reversing conveyor according to claim 1, characterized in that, Both the first drive shaft and the second drive shaft are equipped with rollers. The rollers of the first drive shaft are in drive contact with the first conveyor belt and the second conveyor belt, and the rollers of the second drive shaft are in drive contact with the third conveyor belt.

7. The differential reversing conveyor according to claim 6, characterized in that, The first conveyor belt, the second conveyor belt, and the third conveyor belt are all provided with guide strips, and the guide strips correspond to the side of the roller.

8. The differential reversing conveyor according to claim 1, characterized in that, It also includes a first stop and a second stop, both of which are disposed on the frame. The first stop is located above the first conveyor belt, and the second stop is located above the second conveyor belt and the third conveyor belt.

9. The differential reversing conveyor according to claim 8, characterized in that, The distance between the first and second guard edges gradually decreases along the transport direction and then remains constant.

10. The differential reversing conveyor according to claim 1, characterized in that, It also includes multiple support legs, which are disposed at the bottom of the frame, with at least one support leg below the first conveyor belt, the second conveyor belt, and the third conveyor belt.

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