Variable-distance lifting device for intelligent storage

Abstract

The invention discloses a variable-distance lifting device for intelligent warehousing, belongs to the technical field of intelligent warehousing equipment, and aims at solving the problems that the distance between forks of an existing intelligent warehousing lifting device cannot be adjusted, and the operation range is limited. The device comprises a bottom plate, a supporting frame, a top end fixing plate, a lifting adjusting assembly, a variable-pitch adjusting assembly and a telescopic pallet fork mechanism. Wherein a bottom end driving mechanism and driving wheels are arranged at the bottom end of the bottom plate and can drive the device to move along a track or a bottom surface; the lifting adjusting assembly is matched with a lifting lead screw through a lifting sliding rail, and stable vertical lifting of the lifting plate is achieved. The variable-pitch adjusting assembly flexibly adjusts the distance between the pallet forks by means of a variable-pitch lead screw with threads with opposite rotation directions; the telescopic pallet fork mechanism is of a three-stage telescopic structure. The device can adapt to goods of different specifications, the operation range is expanded, the goods taking and placing flexibility and the device operation stability are improved, the storage cost is reduced, and the device is suitable for goods lifting, taking and placing and moving operation of an intelligent storage system.

Description

Technical Field

[0001] This invention relates to the field of mechanical technology, and more specifically to a variable-pitch lifting device for intelligent warehousing. Background Technology

[0002] With the rapid development of the smart warehousing industry, warehousing systems are placing higher demands on the adaptability, flexibility, and operational range of cargo handling equipment. Currently, existing lifting devices for smart warehousing generally suffer from the following problems: First, the fork spacing is fixed and cannot be adjusted according to the width and size of the goods. This means that the same device can only accommodate goods of a single specification or a small range of specifications. When dealing with goods of different specifications, different devices must be used, increasing warehousing costs and reducing operational efficiency. Second, most lifting devices are fixed-installation structures, lacking autonomous mobility and only able to operate within a fixed area. They cannot flexibly adjust their operating position according to the distribution of goods in the warehouse, limiting their operational range and further restricting the overall operational efficiency of the warehousing system.

[0003] Therefore, it is of great significance to provide a variable-pitch lifting device for smart warehousing that can solve the problems existing in the current technology. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a variable-pitch lifting device for smart warehousing to solve the problem.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A variable-pitch lifting device for intelligent warehousing includes: a base plate and a lifting plate. Each of the four corners of the top of the base plate has a support frame, and a lifting slide rail is fixedly connected to the inner side of each support frame. The four corners of the lifting plate are slidably connected to the lifting slide rail via lifting sliders. A variable-pitch slide rail is installed at the top of the lifting plate, and two sets of sliders are slidably connected to the top of the variable-pitch slide rail. A telescopic fork mechanism one and a telescopic fork mechanism two are respectively installed at the top of the two sets of sliders.

[0007] Preferably, side blocks are fixedly connected to both sides of the top of the lifting plate, and a variable pitch screw is rotatably connected between the two side blocks. The variable pitch screw includes two opposite threads. The bottom ends of the telescopic fork mechanism one and the telescopic fork mechanism two are fixedly connected to screw sliders, and the two threads are respectively threaded to the two screw sliders.

[0008] Preferably, a motor mounting plate is installed at the bottom of the lifting plate, a variable-pitch motor is installed on the side of the motor mounting plate, the output shaft of the variable-pitch motor is driven by a drive sprocket, and a transmission sprocket is installed at the end of the variable-pitch lead screw. The transmission sprocket and the drive sprocket are connected by a chain drive.

[0009] Preferably, a top fixing plate is installed at the top of the support frame, and a lifting motor is installed at the top of the top fixing plate. There are four lifting motors, and the output shaft of each lifting motor is driven and connected to a lifting screw. Threaded sleeves are installed at the four corners of the lifting plate, and the threaded sleeves are threadedly connected to the lifting screw.

[0010] Preferably, the telescopic fork mechanism one and the fork sprocket one have the same specifications. The fork mechanism includes a primary fork, a secondary fork, a tertiary fork, a fork sprocket one, a connecting rod one, a chain one, a fork sprocket two, a connecting rod two, a motor two, and a motor mounting plate two.

[0011] Preferably, the secondary fork is slidably connected to the top of the primary fork, the tertiary fork is slidably mounted on the top of the secondary fork, and the first fork sprocket and the second fork sprocket are rotatably mounted on both ends of the secondary fork, and the first fork sprocket and the second fork sprocket are connected by chain drive.

[0012] Preferably, the third-stage fork is fixedly connected to the chain via connecting rod one, and the first-stage fork is fixedly connected to the chain via connecting rod two. Preferably, the second motor is mounted on one side of the second-stage fork via a motor mounting plate two, and the output shaft of the second motor is drivenly connected to the fork sprocket one.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. Adjustable spacing and strong adaptability: This invention drives the variable pitch screw to rotate through the variable pitch drive mechanism, and uses the opposite direction of the screw threads to realize the spacing adjustment of the two telescopic fork mechanisms. It can flexibly adapt to goods of different widths and sizes, without the need to change equipment, reduce warehousing costs and improve operational efficiency.

[0015] 2. Mobility and wide operating range: The bottom of the base plate is equipped with a bottom drive mechanism and drive wheels, which can drive the device to move along the track or the bottom surface, breaking the limitation of fixed operating area, and flexibly adjusting the operating position according to the distribution of stored goods, thus expanding the operating range;

[0016] 3. Multi-stage extension and retraction, flexible loading and unloading: The telescopic fork mechanism adopts a three-stage extension structure, which realizes multi-stage extension and retraction of the forks through sprocket-chain transmission, allowing for deep loading and unloading of goods inside the rack, improving the flexibility and convenience of loading and unloading goods;

[0017] 4. Stable structure and reliable operation: The lifting assembly uses a lifting slide rail and a lifting screw, and the pitch changing assembly uses a pitch changing slide rail and a pitch changing screw. Both adopt a dual guiding and driving structure of "slide rail + screw" to ensure stable lifting and pitch changing process, reliable operation, and extend the service life of the equipment.

[0018] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the preferred embodiments of this application are described in detail below with reference to the accompanying drawings.

[0019] The above and other objects, advantages and features of this application will become more apparent to those skilled in the art from the following detailed description of specific embodiments in conjunction with the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a structural diagram of the lifting plate in this invention;

[0023] Figure 3 This is a structural diagram of the pitch-changing mechanism in this invention;

[0024] Figure 4 This is a structural diagram of the telescopic fork mechanism in this invention.

[0025] In the diagram: 1. Base plate; 2. Bottom drive mechanism; 3. Drive wheel; 4. Motor mounting plate one; 5. Variable pitch motor; 6. Lifting screw; 7. Support frame; 8. Lifting plate; 9. Variable pitch slide rail; 10. Telescopic fork mechanism one; 11. Lifting motor; 12. Top fixing plate; 13. Drive sprocket; 14. Connecting rod one; 15. Screw slider; 16. Primary fork; 17. Connecting rod two; 18. Secondary fork; 19. Fork sprocket two; 20. Chain one; 21. Variable pitch screw; 22. Fork sprocket one; 23. Telescopic fork mechanism two; 24. Side block; 25. Tertiary fork; 26. Motor two; 27. Motor mounting plate two; 28. Slider; 29. ​​Transmission sprocket; 30. Lifting slide rail. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. In the following description, specific details such as specific configurations and components are provided merely to help fully understand the embodiments of this application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. In addition, for clarity and brevity, descriptions of known functions and structures are omitted in the embodiments.

[0027] Furthermore, reference numerals and / or letters may be repeated in different examples within this application. Such repetition is for the purpose of simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or settings discussed.

[0028] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this article describes another type of relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it are in an "or" relationship.

[0029] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion.

[0030] Please see Figure 1-4 This invention provides a technical solution for a variable-pitch lifting device for intelligent warehousing:

[0031] A variable-pitch lifting device for smart warehousing includes:

[0032] I. Basic Support Components:

[0033] The base plate 1 provides a supporting foundation for the entire device; the bottom end of the base plate 1 is equipped with a bottom drive mechanism and a drive wheel. The bottom drive mechanism is used to drive the drive wheel to rotate, so as to drive the entire device to move on a track or the bottom surface.

[0034] Multiple support frames 7 are vertically fixed to the corners of the top of the base plate 1 to support the top structure;

[0035] The top fixing plate 12 is fixedly installed on the top of all the support frames 7 to form the top support frame of the device.

[0036] II. Lifting and Adjustment Components:

[0037] The lifting slide rail 30 is fixedly installed on the inner side of each of the support frames 7 to provide guidance for the lifting of the lifting plate;

[0038] The lifting plate 8 has its corners slidably connected to the lifting slide rail 30 via lifting sliders, so that the lifting plate 8 can be vertically raised and lowered along the lifting slide rail 30.

[0039] The lifting drive mechanism includes multiple lifting motors 11, multiple lifting lead screws 6, and multiple threaded sleeves. The lifting motors 11 are mounted on the top fixed plate 12. The upper end of each lifting lead screw 6 is connected to the output shaft of one of the lifting motors 11. The multiple threaded sleeves are fixed at the corners of the lifting plate 8, and each threaded sleeve is threadedly engaged with one of the lifting lead screws 6. When the lifting motors 11 are started, they drive the lifting lead screws 6 to rotate. Through the threaded engagement between the threaded sleeves and the lifting lead screws 6, the lifting plate 8 is driven to rise and fall vertically along the lifting slide rail 30.

[0040] III. Pitch Adjustment Components:

[0041] The variable pitch slide rail 9 is installed on the top of the lifting plate 8 to guide the sliding of the slider;

[0042] Two sliders 28 are slidably mounted on the variable pitch slide rail 9;

[0043] The variable pitch drive mechanism includes two side blocks 24, a variable pitch lead screw 21, two lead screw sliders 15, a motor mounting plate 4, a variable pitch motor 5, a drive sprocket 13, a transmission sprocket 29, and a chain. The two side blocks 24 are symmetrically fixed to both sides of the top of the lifting plate 8. The two ends of the variable pitch lead screw 21 are rotatably supported between the two side blocks 24 by bearings, and the variable pitch lead screw 21 has two sections of threads with opposite directions of rotation. The two lead screw sliders 15 are respectively fixedly connected to the bottom end of the subsequent telescopic fork mechanism, and each lead screw slider 15 engages with one section of the thread of the variable pitch lead screw 21. The motor mounting plate 4... Plate 4 is fixed to the bottom end of the lifting plate 8. The variable pitch motor 5 is installed on the side of the motor mounting plate 4. The drive sprocket 13 is connected to the output shaft of the variable pitch motor 5. The transmission sprocket 29 is installed at the end of the variable pitch screw 21. The chain is meshed between the drive sprocket 13 and the transmission sprocket 29. When the variable pitch motor 5 starts, it drives the variable pitch screw 21 to rotate through the drive sprocket 13, the chain and the transmission sprocket 29. Since the two threads of the variable pitch screw 21 rotate in opposite directions, the two screw sliders 15 drive the two telescopic fork mechanisms to move closer or further away from each other along the variable pitch slide rail 9 to achieve fork spacing adjustment.

[0044] IV. Cargo Picking and Placing Components:

[0045] Telescopic fork mechanism 10 and telescopic fork mechanism 23 are respectively installed on the top of the two sliders 28, and the two have the same structure; each telescopic fork mechanism includes a primary fork 16, a secondary fork 18, a tertiary fork 25, a fork sprocket 1 22, a fork sprocket 2 19, a chain 1 20, a connecting rod 14, a connecting rod 2 17, a motor 26, and a motor mounting plate 27;

[0046] The secondary fork 18 is slidably mounted on the primary fork 16, and the tertiary fork 25 is slidably mounted on the secondary fork 18; the first fork sprocket 22 and the second fork sprocket 19 are respectively rotatably mounted on both ends of the secondary fork 18, and the first chain 20 is tightly wound around the first fork sprocket 22 and the second fork sprocket 19;

[0047] The third-stage fork 25 is fixedly connected to one side of the chain 20 via the connecting rod 14, and the first-stage fork 16 is fixedly connected to the other side of the chain 20 via the connecting rod 27. The second motor 26 is mounted on one side of the second-stage fork 18 via the motor mounting plate 27, and the output shaft of the second motor 26 is connected to the fork sprocket 22. When the second motor 26 starts, it drives the fork sprocket 22 to rotate, which drives the chain 20 to rotate. Through the connecting rod 14 and the connecting rod 27, the third-stage fork 25 slides along the second-stage fork 18, and the second-stage fork 18 slides along the first-stage fork 16, respectively, realizing the multi-stage extension and retraction of the forks and completing the loading and unloading of goods.

[0048] Working principle:

[0049] 1. Device movement operation: When it is necessary to adjust the working position of the device in the storage space, start the drive motor 31 at the bottom of the base plate 1. The drive motor 31 outputs power, which is reduced and increased in torque by the transmission gear set 32 ​​and then transmitted to the transmission shaft 33. The transmission shaft 33 drives the drive wheel 34 to rotate, while the guide wheel 35 rolls along the track or bottom surface to guide the device to travel smoothly along the preset path to the target working position. Then, turn off the drive motor 31 to complete the position adjustment.

[0050] 2. Fork Spacing Adjustment Operation: According to the width specifications of the goods to be processed, start the variable pitch motor 5. The variable pitch motor 5 drives the drive sprocket 13 to rotate, which in turn drives the transmission sprocket 29 and the variable pitch screw 21 to rotate synchronously through the chain. Due to the left-hand and right-hand threads on the variable pitch screw 21, the two screw sliders 15 move closer or further apart along the variable pitch screw 21, while simultaneously driving the two telescopic fork mechanisms to slide along the variable pitch slide rail 9 until the spacing between the two telescopic fork mechanisms matches the width of the goods. Then, turn off the variable pitch motor 5 to complete the spacing adjustment.

[0051] 3. Lifting and Adjustment Operation: Start the lifting motor 11, which drives the lifting screw 6 to rotate. Through the threaded sleeve at the corner of the lifting plate 8 and the threaded engagement of the lifting screw 6, the lifting plate 8 rises or falls vertically along the lifting slide rail 30, driving the telescopic fork mechanism to rise and fall synchronously until the telescopic fork mechanism reaches the height suitable for the goods or shelf. Then, turn off the lifting motor 11 to complete the lifting and adjustment.

[0052] 4. Goods Retrieval and Placement Operation: Start the motor 26 of the telescopic fork mechanism. The motor 26 drives the fork sprocket 22 to rotate, which in turn drives the chain 20 to circulate along the fork sprocket 22 and the fork sprocket 19. One side of the chain 20 drives the third-stage fork 25 to extend outward along the second-stage fork 18 through the connecting rod 14. At the same time, the other side of the chain 20 drives the second-stage fork 18 to extend outward along the first-stage fork 16 through the connecting rod 17, realizing multi-stage extension of the forks until the third-stage fork 25 reaches the bottom of the goods or the shelf storage position. Then, start the motor 26 in reverse, and the chain 20 moves in reverse, driving the third-stage fork 25 and the second-stage fork 18 to retract, picking up the goods above the lifting plate 8. Then, the lifting adjustment component raises the goods to the target height, the moving device moves to the unloading position, and the fork extension action is repeated to complete the goods storage. Finally, the forks are retracted in reverse to complete a complete goods retrieval and placement operation.

[0053] The above description is merely a preferred embodiment of the present invention and does not limit the scope of protection of the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any changes, modifications, substitutions, integrations, and parameter alterations to these embodiments within the spirit and principles of the present invention, achieved through conventional substitutions or by achieving the same function without departing from the principles and spirit of the present invention, fall within the scope of protection of the present invention.

Claims

1. A variable-pitch lifting device for intelligent warehousing Its features are, include: Base plate (1); Multiple support frames (7) are vertically fixed to the corners of the top of the base plate (1); The lifting slide rail (30) is fixedly installed on the inner side of each of the support frames (7); The lifting plate (8) is slidably connected to the lifting slide rail (30) at its corners via lifting sliders, so that the lifting plate (8) can be vertically lifted and lowered along the lifting slide rail (30); A variable pitch slide rail (9) is installed on the top of the lifting plate (8); Two sliders (28) are slidably mounted on the variable pitch slide rail (9); and Telescopic fork mechanism one (10) and telescopic fork mechanism two (23) are respectively installed on the top of the two sliders (28).

2. The variable-pitch lifting device according to claim 1 Its features are, It also includes a pitch drive mechanism, which comprises: Two side blocks (24) are symmetrically fixed on both sides of the top of the lifting plate (8); The variable pitch screw (21) is rotatably supported at both ends by bearings between the two side blocks (24), and the variable pitch screw (21) is provided with two threads with opposite directions of rotation; Two lead screw sliders (15) are fixedly connected to the bottom ends of the first telescopic fork mechanism (10) and the second telescopic fork mechanism (23), respectively, and each lead screw slider (15) is engaged with a section of the thread.

3. The variable-pitch lifting device according to claim 2 Its features are, The variable pitch drive mechanism further includes: Motor mounting plate 1 (4) is fixed to the bottom end of the lifting plate (8); A variable pitch motor (5) is mounted on the side of the motor mounting plate (4); The drive sprocket (13) is connected to the output shaft of the variable pitch motor (5) via a transmission. A drive sprocket (29) is mounted at the end of the variable pitch screw (21); and The chain is meshed between the drive sprocket (13) and the transmission sprocket (29).

4. The variable-pitch lifting device according to claim 1 Its features are, It also includes a lifting drive mechanism, which comprises: Top fixing plate (12) is fixedly installed on the top of all the support frames (7); Multiple lifting motors (11) are mounted on the top fixing plate (12); Multiple lifting screws (6), the upper end of each lifting screw (6) being drively connected to the output shaft of one of the lifting motors (11); and Multiple threaded sleeves are fixed at the corners of the lifting plate (8), and each threaded sleeve is threadedly engaged with a lifting screw (6).

5. The variable-pitch lifting device according to claim 1 Its features are, The telescopic fork mechanism one (10) and the telescopic fork mechanism two (23) have the same structure; Each telescopic fork mechanism includes: First-stage fork (16), second-stage fork (18), third-stage fork (25), fork sprocket one (22), fork sprocket two (19), chain one (20), connecting rod one (14), connecting rod two (17), motor two (26), and motor mounting plate two (27).

6. The variable-pitch lifting device according to claim 5 Its features are: The secondary fork (18) is slidably disposed on the primary fork (16); The third-stage fork (25) is slidably mounted on the second-stage fork (18); The first fork sprocket (22) and the second fork sprocket (19) are respectively rotatably mounted at both ends of the second-stage fork (18); The chain one (20) is tensioned and wound around the fork sprocket one (22) and the fork sprocket two (19).

7. The variable-pitch lifting device according to claim 6 Its features are: The three-stage fork (25) is fixedly connected to one side of the chain (20) via the connecting rod (14); The first-stage fork (16) is fixedly connected to the other side of the chain (20) via the second connecting rod (17).

8. The variable-pitch lifting device according to claim 5 Its features are: The second motor (26) is mounted on one side of the second-stage fork (18) via the second motor mounting plate (27); The output shaft of the second motor (26) is connected to the first fork sprocket (22) for driving its rotation.

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