A conveying device of a stacker

Abstract

The application discloses a conveying device of a stacking machine, and relates to the technical field of stacking equipment, which comprises a mounting bottom plate, a first-stage telescopic mounting plate, a second-stage telescopic mounting plate and a double-row conveying belt mechanism mounted on the second-stage telescopic mounting plate, the first-stage telescopic mounting plate is installed in a stack with the mounting bottom plate through a first-stage telescopic linear guide rail, the second-stage telescopic mounting plate is installed in a stack with the first-stage telescopic mounting plate through a second-stage telescopic linear guide rail, one side of the first-stage telescopic mounting plate is provided with a synchronous belt transmission assembly, the lower half of a synchronous belt of the synchronous belt transmission assembly is connected with a first synchronous belt clamping and fixing assembly arranged on the mounting bottom plate, and the upper half of the synchronous belt is connected with a second synchronous belt clamping and fixing assembly arranged on the second-stage telescopic mounting plate. The application has the advantages of compact structure, small size, convenient use and high operation precision.

Description

Technical Field

[0001] This invention relates to the field of stacking equipment technology, and more specifically to a conveying device for a stacker crane. Background Technology

[0002] With economic development and social progress, enterprises are gradually moving towards automation and intelligence in logistics and warehousing, particularly in the areas of automated material handling, automated warehousing, and automated storage. Stacker cranes are a crucial component of the automated warehousing industry, and the stacker crane forks are its most important part. The structure of the forks directly affects the ease of material storage and retrieval, as well as the accuracy of the storage and retrieval positions. Currently, traditional double-sided forks typically have the following drawbacks:

[0003] 1. When traditional forks pick up materials at the picking position, they need to move upwards to lift the material. Therefore, the forks usually need to be hollowed out to avoid interference during operation. The AGV trolley that transports materials usually has a flat belt conveyor. Therefore, the forks of traditional stacker cranes cannot be directly connected to the AGV trolley for picking up materials. A double-row conveyor with a hollowed-out structure is required in the middle to achieve automatic picking up materials. This has high requirements for space and cost.

[0004] 2. Since the position of the material on the traditional fork is fixed, when the material is short and the length space of the storage position is limited, the traditional fork can only ensure that the part of the mechanism that extends beyond the material does not interfere with other parts of the storage position if the extension mechanism of each stage is as equal as possible to the length of the material and the material is placed in the center of the extension mechanism. When each stage of the extension mechanism is short, only by continuously increasing the number of stages of the extension mechanism can a longer bidirectional extension stroke be guaranteed. At this time, the overall structure will be very complex and the cost will be extremely high. Moreover, the more extension stages the structure has, the greater the off-center load of the material on the telescopic fork, and the smaller the weight range of the stored material will be.

[0005] 3. Traditional fork extension mechanisms mostly use gears and racks as the transmission mechanism and bearing wheels as the guide structure of the extension mechanism. This has defects such as slow transmission speed, large guide clearance, and low precision. In addition, there are a lot of guide bearing wheels in each stage. Due to the small installation space and the many positioning holes of the bearing wheels, the overall assembly time is long, the processing time is long, and the cost is high. Moreover, it cannot meet the requirements of high positional accuracy material storage and retrieval. Summary of the Invention

[0006] In view of this, the present invention provides a conveying device for a stacker crane to solve the above-mentioned technical problems.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A stacker crane conveying device includes a mounting base plate, a primary telescopic mounting plate, a secondary telescopic mounting plate, and a double-row conveyor belt mechanism mounted on the secondary telescopic mounting plate. The primary telescopic mounting plate is stacked on the mounting base plate via a primary telescopic linear guide rail, and the secondary telescopic mounting plate is stacked on the primary telescopic mounting plate via a secondary telescopic linear guide rail. A synchronous belt drive assembly is provided on one side of the primary telescopic mounting plate. The lower half of the synchronous belt of the synchronous belt drive assembly is connected to a first synchronous belt clamping and fixing assembly provided on the mounting base plate, and the upper half of the synchronous belt is connected to a second synchronous belt clamping and fixing assembly provided on the secondary telescopic mounting plate.

[0009] Furthermore, the mounting base plate is equipped with a right limit photoelectric switch, a left limit photoelectric switch and an origin photoelectric switch, and the first-stage telescopic mounting plate is equipped with a photoelectric switch detection plate.

[0010] Furthermore, a limiting plate is provided on the corresponding end of the telescopic linear guide, and a polyurethane buffer block is installed on the limiting plate.

[0011] Furthermore, the material handling position of the stacker crane's conveying device is equipped with a through-beam photoelectric sensor and a diffuse reflection photoelectric sensor that are staggered along a height, and the through-beam photoelectric sensor is located at a high position.

[0012] Furthermore, the telescopic linear guide is a ball-bearing linear guide.

[0013] Furthermore, the double-row conveyor belt mechanism includes two parallel single conveyor belt mechanisms. The two active conveyor belt pulleys of the conveyor belt assemblies of the two single conveyor belt mechanisms are connected through the conveyor drive shaft. A material detection sensor and a conveying control DC motor are provided between the two single conveyor belt mechanisms. The active helical gear connected to the conveying control DC motor meshes with the driven helical gear located on the conveyor drive shaft.

[0014] Furthermore, the single conveyor belt mechanism also includes a conveyor belt profile skeleton connected to the secondary telescopic mounting plate. The inner side of the conveyor belt profile skeleton is equipped with a conveyor belt wheel mounting bracket and a main shaft bracket, and the outer side of the conveyor belt profile skeleton is guided and engaged with the corresponding boss of the material pallet.

[0015] Furthermore, the conveyor belt profile skeleton is connected to the secondary telescopic mounting plate via at least one conveyor belt short mounting bracket, and the conveyor belt short mounting bracket has a limiting groove through which the conveyor belt of the conveyor belt assembly passes.

[0016] Furthermore, the active synchronizing pulley of the synchronous belt drive assembly is connected to the telescopic control stepper motor via a reducer.

[0017] Furthermore, the timing belt clamping and fixing assembly includes a timing belt flat pressure plate and a timing belt tooth pressure plate for use together.

[0018] Furthermore, it also includes a tiered telescopic locking mechanism corresponding to the position of the first synchronous belt clamping and fixing assembly. The tiered telescopic locking mechanism includes a support frame connected to the mounting base plate, several sliding rods horizontally slidably disposed on the support frame, a support crossbeam connected to the support frame, and a drive rod vertically slidably disposed on the support crossbeam. The two ends of the sliding rods are respectively connected to a pressure plate and a wedge. The pressure plate can abut against the first-stage telescopic mechanism. The upper end of the drive rod abuts against the wedge surface of the wedge. The lower end of the drive rod abuts against the elastically floating synchronous belt tooth pressure plate of the first synchronous belt clamping and fixing assembly. The support crossbeam is provided with a locking assembly for locking the position of the drive rod.

[0019] Furthermore, the locking component is a locking bolt, which can be inserted into a corresponding socket located on the outer peripheral surface of the drive rod.

[0020] Furthermore, a return spring fitted on the slide bar abuts between the wedge and the support frame.

[0021] As can be seen from the above technical solution, the advantages of the present invention are:

[0022] 1. This application integrates the double-row conveyor belt mechanism into the telescopic structure of the conveying device, upgrading the traditional forks. Without lifting the material, the two conveyor belts of the double-row conveyor belt mechanism can be rotated to directly transport the material at the picking position to the conveying device of the stacker crane. Therefore, it can be directly connected to the AGV trolley without the need to add a hollow double-row conveyor in the intermediate link, saving costs and space.

[0023] 2. Because the material can move on the double-row conveyor belt mechanism, the length of each telescopic mechanism is not affected by the storage and retrieval space. Therefore, only two telescopic mechanisms are needed to meet the bidirectional telescopic stroke requirements. The overall height is smaller than that of traditional multi-stage telescopic forks, and the structure is relatively simple. Furthermore, since the material moves on the conveying device, the double-row conveyor belt mechanism can be controlled to move the material, allowing a portion of the material to extend beyond the length of the double-row conveyor belt mechanism, so that the storage and retrieval position of the material can exceed the stroke of the telescopic mechanism. Under these characteristics, if the material storage and retrieval stroke is the same as that of traditional forks, the stroke of this application can be shorter, the overall height and length are smaller, the structure is simpler, and the weight is lighter, allowing the stacker crane to carry a larger mass of material with the same load.

[0024] 3. The transmission mechanism of this application is a synchronous belt transmission mechanism and the guide mechanism is a ball linear guide. Therefore, the transmission speed is faster than the traditional gear and rack structure, the guiding accuracy is significantly improved compared with the bearing wheel structure of the traditional fork, and it can store and retrieve materials with higher positional accuracy requirements. In addition, the mounting base plate and the first-stage telescopic mounting plate have guide grooves that cooperate with the telescopic linear guide, so the installation accuracy is high and the assembly is simple and fast.

[0025] 4. The double-row conveyor belt mechanism utilizes the profile skeleton of the two conveyor belts and the boss of the material pallet for guiding cooperation, which restricts the freedom of material vertically and in the conveying direction, thereby improving conveying accuracy. Due to the hollow nature of the double-row conveyor belt mechanism, photoelectric switches for material detection, drag chain mounting brackets, and conveying control DC motors are installed in this space, which improves the integration of the structure and reduces the overall size.

[0026] 5. The tiered telescopic locking mechanism allows the two-stage telescopic mechanism of this application to switch between single-stage and two-stage telescopic operation, making it more convenient to use.

[0027] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a three-dimensional structural diagram of the overall structure of the present invention.

[0030] Figure 2 This is a schematic diagram of the telescopic part of the present invention. Figure 1 .

[0031] Figure 3 This is a schematic diagram of the telescopic part of the present invention. Figure 2 .

[0032] Figure 4 This is a schematic diagram of the telescopic part of the present invention in the working state.

[0033] Figure 5 This is a front view schematic diagram of the hierarchical telescopic locking mechanism of the present invention.

[0034] Figure 6 This is a side view of the hierarchical telescopic locking mechanism of the present invention.

[0035] List of reference numerals: 1. Mounting base plate; 2. Primary telescopic linear guide rail; 3. Guide rail elevation block; 4. Primary telescopic mounting plate; 5. Secondary telescopic linear guide rail; 6. Secondary telescopic mounting plate; 7. Double-row conveyor belt mechanism; 7. Conveyor belt profile skeleton; 71. Conveyor belt short mounting bracket; 72. Conveyor belt connecting bracket; 73. Conveyor belt pulley mounting bracket; 74. Conveyor belt assembly; 75. Conveyor drive shaft; 76. Driven helical gear; 77. Conveyor control DC motor; 78. DC motor bracket; 79. DC motor adjusting bracket; 710. Main shaft bracket; 711. Material detection sensor bracket; 712. Material detection sensor; 713. Driven synchronous pulley; 8. Synchronous belt; 9. Driven synchronous pulley; 10. First synchronous belt clamping and fixing assembly; 11. Synchronous belt flat pressure plate; 111. Synchronous belt tooth pressure plate; 112. Limiting post. 113. Lifting spring; 114. Second synchronous belt clamping and fixing assembly; 12. Reducer; 13. Telescopic control stepper motor; 14. First-stage telescopic cable chain; 15. Second-stage telescopic cable chain; 16. First-stage telescopic cable chain bracket; 17. Limiting plate; 18. Polyurethane buffer block; 19. Right limit photoelectric switch; 21. Left limit photoelectric switch; 22. Origin photoelectric switch; 23. Photoelectric switch detection piece; 24. Left decorative baffle; 25. High sensor bracket; 26. Through-beam photoelectric sensor; 27. Right decorative baffle; 28. Low sensor bracket; 29. ​​Diffuse reflection photoelectric sensor; 30. Layered telescopic locking mechanism; 31. Support frame; 311. Support crossbeam; 312. Slide rod; 313. Pressure plate; 314. Wedge block; 315. Return spring; 316. Drive rod; 317. Locking bolt; 318. Material tray; 100. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] refer to Figures 1 to 6 Further explanation of this application, such as Figure 1 , Figure 2 , Figure 3 and Figure 4The conveying device of a stacker crane shown includes a mounting base plate 1, a primary telescopic mounting plate 4, a secondary telescopic mounting plate 6, and a double-row conveyor belt mechanism 7 mounted on the secondary telescopic mounting plate 6. The primary telescopic mounting plate 4 is stacked and mounted above the mounting base plate 1 via a primary telescopic linear guide rail 2. The secondary telescopic mounting plate 6 is stacked and mounted above the primary telescopic mounting plate 4 via a secondary telescopic linear guide rail 5. A synchronous belt drive assembly is provided on one side of the primary telescopic mounting plate 4. The synchronous belt drive assembly includes a driving synchronous pulley 8, a driven synchronous pulley 10, and a synchronous belt 9 sleeved on the driving synchronous pulley 8 and the driven synchronous pulley 10. The lower half of the synchronous belt 9 is fixed to a first synchronous belt clamping assembly provided on the mounting base plate 1. The components 11 are connected together. The upper half of the synchronous belt 9 is connected to the second synchronous belt clamping and fixing assembly 12 set on the secondary telescopic mounting plate 6. The active synchronous pulley 8 is connected to the telescopic control stepper motor 14 through the reducer 13. The telescopic control stepper motor 14 is connected to the primary telescopic mounting plate 4 through the stepper motor bracket. The other end of the primary telescopic cable chain 15, which is connected to the mounting base plate 1 at one end, is connected to the primary telescopic cable chain bracket 17 located on the primary telescopic mounting plate 4. The other end of the secondary telescopic cable chain 16, which is connected to the primary telescopic mounting plate 4 at one end, is connected to the secondary telescopic mounting plate 6. The primary telescopic cable chain 15 and the secondary telescopic cable chain 16 are respectively distributed at both ends of the primary telescopic mounting plate 4.

[0038] By connecting the first synchronous belt clamping and fixing assembly 11 and the second synchronous belt clamping and fixing assembly 12 to the synchronous belt 9, when the telescopic control stepper motor 14 is controlled to rotate clockwise, since neither the first synchronous belt clamping and fixing assembly 11 nor the second synchronous belt clamping and fixing assembly 12 can generate relative movement with the synchronous belt 9, the telescopic control stepper motor 14 drives the synchronous belt 9 to rotate, which in turn drives the first-stage telescopic mounting plate 4 and all components located on the first-stage telescopic mounting plate 4 to move forward in a translational motion. At the same time, the synchronous belt 9 also drives the second-stage telescopic mounting plate 6 and all components located on the second-stage telescopic mounting plate 6 to move forward in a translational motion. Since the second-stage telescopic mounting plate 6 is mounted on the second-stage telescopic linear guide 5 which is fixedly connected to the first-stage telescopic mounting plate 4, and the first-stage telescopic mounting plate 4 is mounted on the first-stage telescopic linear guide 2 which is fixedly connected to the mounting base plate 1, the translational speed ratio between the first-stage telescopic mounting plate 4 and the second-stage telescopic mounting plate 6 is 1:2, exhibiting high-speed telescopic characteristics. By integrating the double-row conveyor belt mechanism 7, the system is upgraded. Unlike traditional forks, this invention allows the two conveyor belts of the double-row conveyor mechanism 7 to rotate and directly transport materials from the picking position to the stacker crane's conveyor device without lifting or raising the material. Therefore, it can directly interface with AGVs (Automated Guided Vehicles) without requiring an intermediate, perforated double-row conveyor, saving cost and space. Furthermore, because the material's position on the double-row conveyor mechanism 7 is movable, the length of each telescopic mechanism is not affected by the material storage / retrieval space. Only two telescopic mechanisms are needed to meet the bidirectional telescopic stroke requirements, resulting in a smaller overall height and simpler structure compared to traditional multi-stage telescopic forks. Moreover, since the material moves on the conveyor device, the double-row conveyor mechanism 7 can be controlled to move a portion of the material beyond its length, allowing the material storage / retrieval position to exceed the telescopic mechanism's stroke. With this characteristic, if the material storage / retrieval stroke is the same as with traditional forks, the stroke can be shorter, resulting in a smaller overall height and length, a simpler structure, and lighter weight, enabling the stacker crane to carry a larger mass of material with the same load.

[0039] When the height of the primary telescopic linear guide rail 2 cannot meet the installation requirements of the mounting base plate 1 and the primary telescopic mounting plate 4, a guide rail raising block 3 connected to the primary telescopic linear guide rail 2 can be installed at the bottom of the primary telescopic mounting plate 4.

[0040] Preferably, the telescopic linear guide rail in this application is a ball-bearing linear guide rail.

[0041] Specifically, both the mounting base plate 1 and the first-stage telescopic mounting plate 4 are machined with guide grooves that mate with the telescopic linear guide rail, ensuring the parallelism of the telescopic linear guide rail installation and the parallelism between each telescopic mechanism, thereby improving the service life and positioning accuracy of the telescopic mechanism. The transmission mechanism of this application is a synchronous belt transmission mechanism, and the guide mechanism is a ball linear guide rail. Therefore, the transmission speed is faster than the traditional gear and rack structure, and the guiding accuracy is significantly improved compared to the bearing wheel structure of the traditional fork. It can also store and retrieve materials with higher positional accuracy requirements. Furthermore, the mounting base plate 1 and the first-stage telescopic mounting plate 4 have guide grooves that mate with the telescopic linear guide rail, resulting in high installation accuracy and simple and quick assembly.

[0042] In the embodiments of this application, the timing belt clamping and fixing assembly includes a timing belt flat pressure plate and a timing belt tooth pressure plate used in conjunction.

[0043] Specifically, the synchronous belt flat pressure plate 111 of the first synchronous belt clamping and fixing assembly 11 is fixedly connected to the mounting base plate 1, and the synchronous belt tooth pressure plate 112 of the first synchronous belt clamping and fixing assembly 11 is elastically floatingly connected to the synchronous belt flat pressure plate 111 of the first synchronous belt clamping and fixing assembly 11, and the synchronous belt tooth pressure plate engages with the tooth surface of the synchronous belt 9; the synchronous belt flat pressure plate 111 of the second synchronous belt clamping and fixing assembly 12 is fixedly connected to the secondary telescopic mounting plate 6, and the synchronous belt tooth pressure plate 112 of the second synchronous belt clamping and fixing assembly 12 is fixedly connected to the synchronous belt flat pressure plate 111 of the second synchronous belt clamping and fixing assembly 12, and the synchronous belt tooth pressure plate engages with the tooth surface of the synchronous belt 9.

[0044] Specifically, the timing belt toothed pressure plate 112 of the first timing belt clamping and fixing assembly 11 is provided with a plurality of limiting posts 113 that slide in cooperation with the timing belt flat pressure plate 111 of the first timing belt clamping and fixing assembly 11. A lifting spring 114 sleeved on the limiting post 113 abuts against the timing belt toothed pressure plate 112 and the timing belt flat pressure plate 111, so that the timing belt toothed pressure plate 112 of the first timing belt clamping and fixing assembly 11 is elastically floating.

[0045] like Figure 5 and Figure 6As shown, this application also includes a hierarchical telescopic locking mechanism 31 corresponding to the position of the first synchronous belt clamping and fixing assembly 11. The hierarchical telescopic locking mechanism 31 includes a support frame 311 fixedly connected to the mounting base plate 1, a plurality of sliding rods 313 horizontally slidably disposed on the support frame 311, a support crossbeam 312 fixedly connected to the support frame 311, and a drive rod 317 vertically slidably disposed on the support crossbeam 312. The two ends of the sliding rods 313 are respectively connected to a pressure plate 314 and a wedge block 315. The pressure plate 314 can abut against the first-level telescopic mechanism to prevent the first-level telescopic mechanism from telescopically moving. The upper end of the drive rod 317 abuts against the wedge surface of the wedge block 315, and the lower end of the drive rod 317 abuts against the elastically floating synchronous belt tooth pressure plate 112 of the first synchronous belt clamping and fixing assembly 11. The support crossbeam 312 is provided with a locking component for locking the position of the drive rod 317. In use, when the drive rod 317 pushes the timing belt tooth pressure plate 112 of the first timing belt clamping and fixing assembly 11 to engage with the tooth surface of the timing belt 9, the pressure plate 314 releases the primary telescopic mechanism (primary telescopic mounting plate 4 or guide rail raising block 3). When the timing belt drive assembly is working, it drives the primary telescopic mounting plate 4 and the secondary telescopic mounting plate 6 to move simultaneously along the corresponding telescopic linear guide rail. When the drive rod 317 pushes the wedge block 315 to make the pressure plate 314 abut against the primary telescopic mechanism, it releases the primary telescopic mechanism (primary telescopic mounting plate 4). When the guide rail shim block 3 is locked, the timing belt tooth pressure plate 112 of the first timing belt clamping and fixing assembly 11 separates from the tooth surface of the timing belt 9. When the timing belt drive assembly is working, the first-level telescopic mounting plate 4 and the mounting base plate 1 do not produce relative displacement, but only drive the second-level telescopic mounting plate 6 to move along the corresponding telescopic linear guide rail, realizing the transformation of the second-level telescopic into the first-level telescopic. When the corresponding position of the second timing belt clamping and fixing assembly 12 is also provided with a hierarchical telescopic locking mechanism 31, the second-level telescopic mechanism can be quickly locked or released according to the usage requirements.

[0046] like Figure 6 As shown, the locking component is a locking bolt 318, which can be inserted into a corresponding hole located on the outer circumferential surface of the drive rod 317. The locking bolt 318, inserted into the corresponding hole, prevents the drive rod 317 from freely rising and falling, ensuring the reliable operation of the multi-level telescopic locking mechanism 31.

[0047] like Figure 6 As shown, the return spring 316, sleeved on the slide rod 313, abuts against the wedge block 315 and the support frame 311. When the drive rod 317 descends, it facilitates the control of the pressure plate 314 to automatically move away from the primary telescopic mechanism, preventing the pressure plate 314 from obstructing the movement of the primary telescopic mounting plate 4.

[0048] like Figure 3 As shown in the embodiment of this application, the mounting base plate 1 is equipped with a right limit photoelectric switch 21, a left limit photoelectric switch 22, and an origin photoelectric switch 23, and the first-stage telescopic mounting plate 4 is equipped with a photoelectric switch detection piece 24. The right limit photoelectric switch 21 and the left limit photoelectric switch 22 can prevent accidental operation from causing overshoot of the telescopic stroke of this application, thus preventing unnecessary injury to personnel and equipment. The origin photoelectric switch 23 is used to calibrate the origin position of the mechanism, ensuring the high positional positioning accuracy of the telescopic mechanism of the conveying device.

[0049] In the embodiments of this application, a limiting plate 18 is provided on the corresponding end of the telescopic linear guide, and a polyurethane buffer block 19 is installed on the limiting plate 18. When a power failure occurs in this application, causing overshoot, the polyurethane buffer block 19 and the limiting plate 18 can buffer and protect the mechanism.

[0050] In the embodiments of this application, the material picking position of the stacker crane's conveying device is provided with a through-beam photoelectric sensor 27 and a diffuse reflection photoelectric sensor 30 that are staggered along the height, and the through-beam photoelectric sensor 27 is located at the high position.

[0051] Specifically, the stacker crane's conveying device has a left decorative baffle 25 and a right decorative baffle 28 fixedly connected to the mounting base plate 1. The mounting base plate 1 is located between the left decorative baffle 25 and the right decorative baffle 28, and a high sensor bracket 26 and a low sensor bracket 29 are installed on the decorative baffles. The through-beam photoelectric sensor 27 is installed on the high sensor bracket 26, and the diffuse reflection photoelectric sensor 30 is installed on the low sensor bracket 29. By adding a high-low misaligned detection photoelectric sensor at the material pick-up position of the conveying device, the direction of the incoming material can be detected, preventing the material from being rotated 180 degrees and placed backwards during manual placement, simplifying the manual operation process, and improving the overall safety of the production line.

[0052] like Figure 2 , Figure 3 and Figure 4 As shown, the double-row conveyor belt mechanism 7 includes two parallel single conveyor belt mechanisms. The two active conveyor belt pulleys of the conveyor belt assembly 75 of the two single conveyor belt mechanisms are connected by the conveyor drive shaft 76. A material detection sensor 713 and a conveyor control DC motor 78 are provided between the two single conveyor belt mechanisms. The active helical gear 77 connected to the conveyor control DC motor 78 meshes with the driven helical gear located on the conveyor drive shaft 76.

[0053] Specifically, the axis of the driving helical gear 77 is perpendicular to the axis of the driven helical gear. The material detection sensor 713 is installed between the two single conveyor belt mechanisms to detect the position of the material pallet 100 on the double conveyor belt mechanism 7, thereby improving the control capability of the double conveyor belt mechanism 7 over the material pallet 100. The installation method of the conveyor control DC motor 78 between the two single conveyor belt mechanisms and the transmission method using helical gear meshing minimize the overall height and width dimensions of this application. The conveyor control DC motor 78 shifts the overall center of gravity backward, and the overall structure of the double conveyor belt mechanism 7 is more concentrated and compact. When the double conveyor belt mechanism 7 of this application is installed on a stacker crane, the working stroke of the stacker crane can be maximized, improving the load capacity for storing and retrieving materials and increasing flexibility.

[0054] In the embodiments of this application, the single conveyor belt mechanism further includes a conveyor belt profile frame 71 connected to the secondary telescopic mounting plate 6. The inner sides of the two conveyor belt profile frames 71 are connected by multiple conveyor belt connecting brackets 73 to stabilize the frame structure of the double-row conveyor belt mechanism 7. A conveyor belt pulley mounting bracket 74 and a main shaft bracket 711 are installed on the inner side of the conveyor belt profile frame 71. The driving pulley of the conveyor belt assembly 75 is fixedly connected to the conveyor drive shaft 76. The corresponding end of the conveyor drive shaft 76 is installed to the main shaft bracket 711 through a corresponding pulley bearing. The driven pulley of the conveyor belt assembly 75 is connected to the pulley passive shaft set on the conveyor pulley mounting bracket 74 through a pulley bearing. The conveyor belt profile frame 71 is located between the upper and lower parts of the conveyor belt of the conveyor belt assembly 75. The conveyor belt profile frame 71 has the function of supporting the conveyor belt to prevent the conveyor belt from relaxing too quickly and affecting the material conveying.

[0055] The conveying control DC motor 78 is connected to the DC motor adjusting bracket 710 via the DC motor bracket 79. The DC motor adjusting bracket 710 has multiple strip-shaped mounting holes. The DC motor adjusting bracket 710 is connected to the inner side of the two conveyor belt profile frames 71 through the strip-shaped mounting holes at both ends, so that the conveying control DC motor 78 is suspended and installed. A material detection sensor bracket 712 for installing the material detection sensor 713 is also provided between the two conveyor belt profile frames 71.

[0056] The conveyor belt profile frame 71 is connected to the secondary telescopic mounting plate 6 via at least one conveyor belt short mounting bracket 72, and the conveyor belt short mounting bracket 72 has a limiting groove for the conveyor belt of the conveyor belt assembly 75 to pass through, and the mounting part of the conveyor belt short mounting bracket 72 is located inside the conveyor belt profile frame 71.

[0057] Since the mounting portions of the conveyor belt pulley mounting bracket 74, main shaft bracket 711, DC motor bracket 79, DC motor adjusting bracket 710, material detection sensor bracket 712, and conveyor belt short mounting bracket 72 are all located between the two conveyor belt profile frames 71, the outer side of the conveyor belt profile frame 71 can guide and cooperate with the corresponding boss of the material pallet 100. By using the conveyor belt profile frame 71 to guide the boss of the material pallet 100, the high-precision conveying of the material pallet 100 and the position calibration when docking with the material pallet 100 can be guaranteed.

[0058] When using this application, the conveying device is connected to the lifting drive mechanism of the stacker crane.

[0059] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0060] In the description of this invention, "first feature" and "second feature" may include one or more of the features.

[0061] In the description of this invention, "a plurality of" means two or more.

[0062] In the description of this invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0063] In the description of this invention, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature.

[0064] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0065] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A conveying device for a stacker crane, characterized in that, The system includes a mounting base plate (1), a primary telescopic mounting plate (4), a secondary telescopic mounting plate (6), and a double-row conveyor belt mechanism (7) mounted on the secondary telescopic mounting plate (6). The primary telescopic mounting plate (4) is stacked with the mounting base plate (1) via a primary telescopic linear guide rail (2), and the secondary telescopic mounting plate (6) is stacked with the primary telescopic mounting plate (4) via a secondary telescopic linear guide rail (5). A synchronous belt drive assembly is provided on one side of the primary telescopic mounting plate (4). The lower half of the synchronous belt (9) of the synchronous belt drive assembly is connected to a first synchronous belt clamping and fixing assembly (11) provided on the mounting base plate (1), and the upper half of the synchronous belt (9) is connected to a second synchronous belt clamping and fixing assembly (12) provided on the secondary telescopic mounting plate (6). The synchronous belt clamping and fixing assembly includes a synchronous belt flat pressure plate (111), a synchronous belt tooth pressure plate (112), and a clamping mechanism for the first synchronous belt. The hierarchical telescopic locking mechanism (31) corresponding to the position of the fixed component (11) includes a support frame (311) connected to the mounting base plate (1), a plurality of sliding rods (313) horizontally slidably arranged on the support frame (311), a support crossbeam (312) connected to the support frame (311), and a drive rod (317) vertically slidably arranged on the support crossbeam (312). The two ends of the sliding rods (313) The drive rod (317) is connected to the pressure plate (314) and the wedge (315) respectively. The pressure plate (314) can abut against the first-level telescopic mechanism. The upper end of the drive rod (317) abuts against the wedge surface of the wedge (315). The lower end of the drive rod (317) abuts against the elastically floating synchronous belt tooth pressure plate (112) of the first synchronous belt clamping and fixing assembly (11). The support crossbeam (312) is provided with a locking assembly for locking the position of the drive rod (317).

2. The conveying device of the stacker crane as described in claim 1, characterized in that, The mounting base plate (1) is provided with a right limit photoelectric switch (21), a left limit photoelectric switch (22) and an origin photoelectric switch (23), and the first-level telescopic mounting plate (4) is provided with a photoelectric switch detection piece (24).

3. The conveying device of the stacker crane as described in claim 1, characterized in that, A limiting plate (18) is provided on the corresponding end of the telescopic linear guide, and a polyurethane buffer block (19) is installed on the limiting plate (18).

4. The conveying device of the stacker crane as described in claim 1, characterized in that, The stacker crane's conveying device has a photoelectric sensor (27) and a diffuse reflection photoelectric sensor (30) that are staggered along the height at the material pick-up position, and the photoelectric sensor (27) is located at the high position.

5. The conveying device of the stacker crane as described in claim 1, characterized in that, The telescopic linear guide is a ball-bearing linear guide.

6. The conveying device of the stacker crane as described in claim 1, characterized in that, The double-row conveyor belt mechanism (7) includes two parallel single conveyor belt mechanisms. The two active conveyor belt pulleys of the conveyor belt assemblies (75) of the two single conveyor belt mechanisms are connected through the conveyor drive shaft (76). A material detection sensor (713) and a conveyor control DC motor (78) are provided between the two single conveyor belt mechanisms. The active helical gear (77) connected to the conveyor control DC motor (78) meshes with the driven helical gear located on the conveyor drive shaft (76).

7. The conveying device of the stacker crane as described in claim 6, characterized in that, The single conveyor belt mechanism also includes a conveyor belt profile frame (71) connected to the secondary telescopic mounting plate (6). The inner side of the conveyor belt profile frame (71) is equipped with a conveyor belt wheel mounting bracket (74) and a main shaft bracket (711). The outer side of the conveyor belt profile frame (71) is guided and engaged with the corresponding boss of the material pallet (100).

8. The conveying device of the stacker crane as described in claim 7, characterized in that, The conveyor belt profile skeleton (71) is connected to the secondary telescopic mounting plate (6) via at least one conveyor belt short mounting bracket (72), and the conveyor belt short mounting bracket (72) has a limiting groove through which the conveyor belt of the conveyor belt assembly (75) passes.

9. The conveying device of the stacker crane as described in claim 1, characterized in that, The active synchronous pulley (8) of the synchronous belt drive assembly is connected to the telescopic control stepper motor (14) via a reducer (13).

10. The conveying device of the stacker crane as described in claim 1, characterized in that, The locking component is a locking bolt (318), which can be inserted into a corresponding socket on the outer peripheral surface of the drive rod (317).

11. The conveying device of the stacker crane as described in claim 1, characterized in that, The return spring (316) sleeved on the slide bar (313) abuts between the wedge (315) and the support frame (311).

Images