Space storage transfer platform with lead screws for driving wedge-shaped blocks to press downwards

Abstract

The invention relates to the technical field of aerospace, in particular to a space storage transfer platform with a lead screw driving wedge-shaped block to press down, which comprises a storage device, the storage device comprises a top plate, a storage mechanism and a lead screw pressing device, the storage mechanism is arranged at the bottom of the top plate, the storage mechanism is used for storing goods packages, and the lead screw pressing device is arranged in the storage mechanism; a wedge-shaped block of the lead screw pressing device is suitable for being inserted into a cargo bag and connected with the cargo bag. The wedge-shaped block comprises a lead screw matching block, a spring and a wedge-shaped sliding block, the wedge-shaped sliding block is arranged in a groove of the lead screw matching block in a sliding mode, one end of the spring is connected with the wedge-shaped sliding block, and the other end of the spring is connected with the lead screw matching block; and the transfer platform comprises a bottom platform and a rotor, the bottom platform is arranged at the bottom of the storage mechanism, and the rotor is arranged on the bottom platform and used for transferring goods packages. And the wedge-shaped block is driven by the lead screw pressing device to press downwards, so that the accurate transfer of the required goods package is ensured, and the transfer efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of aerospace technology, and in particular to a space storage and transfer platform with a screw-driven wedge block pressing down. Background Art

[0002] During the construction and operation of my country's space station, cargo spacecraft is an important part of the space station, and a large amount of materials need to be transported up by cargo spacecraft every year. At present, the cargo of the International Space Station is mainly transported by Progress, H-Ⅱ transfer spacecraft, Dragon spacecraft and Cygnus spacecraft. The cargo transportation mode is closely related to the structural form and overall mechanical properties of the spacecraft, including interference constraint, lashing constraint, container long-distance transportation and other forms. Among them, cargo packages are mostly fastened and restricted by cabin plates and different numbers of restraints. Cargo packages are all tied with restraints. However, they are all tied on the frame structure and are not suitable for installation in the honeycomb sandwich panel structure environment of cargo spacecraft.

[0003] The cargo packages fixed by the frame structure are stacked together in three dimensions, which causes certain problems for the transfer application of the cargo packages. Although manual labor can effectively and accurately transfer the cargo packages, the transfer efficiency is low; if the cargo packages are transferred by a robotic arm, the three-dimensional stacked frame storage frame structure itself affects the operable space of the robotic arm, the robotic arm moves slowly, and the transfer efficiency is also low; the control system of the robotic arm is more complicated, and the control accuracy is limited by the control system. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art that although manpower can effectively and accurately transfer, the transfer efficiency is low, thereby providing a spatial storage and transfer platform with a screw-driven wedge block pressing down.

[0005] In order to solve the above technical problems, the present invention provides a spatial storage and transfer platform with a screw-driven wedge block pressing down, comprising: a storage device, the storage device comprising a top plate and a storage mechanism, a screw pressing device, the storage mechanism is arranged at the bottom of the top plate, the storage mechanism is used to store cargo packages, and the screw pressing device is arranged in the storage mechanism, the wedge block of the screw pressing device is suitable for being inserted into the cargo package and connected to the cargo package; the wedge block comprises a screw matching block, a spring and a wedge slider, the wedge slider is slidably arranged in the groove of the screw matching block, one end of the spring is connected to the wedge slider, and the other end is connected to the screw matching block; a transfer platform, comprising a bottom platform and a mover, the bottom platform is arranged at the bottom of the storage mechanism, the mover is arranged on the bottom platform, and the mover is used to transfer cargo packages.

[0006] Furthermore, the cross-section of the wedge-shaped sliding block is a right-angled trapezoid.

[0007] Furthermore, the storage mechanism includes a first external fixed side plate and a first internal fixed side plate, a second internal fixed side plate, a second external fixed side plate, and a baffle plate that are arranged at intervals; the first external fixed side plate and the first internal fixed side plate, the second internal fixed side plate, the second external fixed side plate, and the baffle plate are all connected to the top plate; the screw pressing device is arranged on the first external fixed side and the first internal fixed side plate, and the second internal fixed side plate.

[0008] Furthermore, a plurality of ball-end screws are provided at intervals on the first outer fixed side panel, the first inner fixed side panel, the second inner fixed side panel, and the second outer fixed side panel, and the ball-end screws are used to fix the position of the cargo package.

[0009] Furthermore, the screw pressing device includes a screw mounting block and a rotating screw, the screw mounting block is located on the storage mechanism and connected to the top plate, the rotating screw is connected to the screw mounting block and the motor, and the wedge block is arranged on the rotating screw.

[0010] Furthermore, the bottom platform includes a lower magnetic yoke and a transfer track, a frame, and a coil. The transfer track and the frame are arranged on the lower magnetic yoke, and the coil is wound on the frame. A plurality of installation spaces are reserved for the coil inside the transfer track, and the frame and the coil array are grouped and arranged in the installation space.

[0011] Furthermore, the mover includes a mover frame and a cargo package receiving plate, a universal bead, and a permanent magnet assembly. The cargo package receiving plate is arranged on the mover frame, the universal bead is located at the bottom of the mover frame, the universal bead is abutted against the transfer track, the permanent magnet assembly is located in the mover frame, and the permanent magnet assembly is arranged on the mover frame.

[0012] Furthermore, a magnetic block is provided on the cargo package receiving plate.

[0013] Furthermore, the lower magnetic yoke is made of soft magnetic alloy 1J50 material.

[0014] Furthermore, the permanent magnet assembly is made of NdFeB alloy hard magnetic material.

[0015] The technical solution of the present invention has the following advantages:

[0016] The spatial storage and transfer platform with a screw-driven wedge block pressing down provided by the present invention comprises: a storage device, the storage device comprises a top plate and a storage mechanism, a screw pressing device, the storage mechanism is arranged at the bottom of the top plate, the storage mechanism is used to store cargo packages, and the screw pressing device is arranged in the storage mechanism, the wedge block of the screw pressing device is suitable for being inserted into the cargo package and connected to the cargo package; the wedge block comprises a screw matching block, a spring and a wedge slider, the wedge slider is slidably arranged in the groove of the screw matching block, one end of the spring is connected to the wedge slider, and the other end is connected to the screw matching block; the transfer platform comprises a bottom platform and a mover, the bottom platform is arranged at the bottom of the storage mechanism, the mover is arranged on the bottom platform, and the mover is used to transfer cargo packages.

[0017] By setting the storage mechanism at the bottom of the top plate, the storage mechanism can store cargo bags of different sizes; at the same time, the screw pressing device is installed in the storage mechanism, and the wedge block of the screw pressing device is inserted into the cargo bag, so as to realize the connection between the screw pressing device and the cargo bag, wherein the wedge slider is slidingly set in the groove of the screw matching block, that is, the wedge slider can slide in the screw matching frame, and since a spring is provided between the screw matching block and the wedge slider, the screw pressing device can smoothly contact the cargo bag during the process of driving the wedge slider to press down. The cargo bag can be driven to move downward by the screw pressing device and fall into the mover of the transfer platform. The mover and the bottom platform are then used to cooperate to realize the transfer of the cargo bag.

[0018] Compared with the existing cargo package transfer mode, the spatial storage transfer platform with a screw-driven wedge block pressing down can better adapt to the working environment, has a high level of structural integration and a high degree of integration; the wedge block is pressed down by a screw-driven pressing device to ensure the accurate transfer of the required cargo package, and the setting of the wedge slider ensures that when the screw-driven pressing device drives the wedge block to rise, the retraction of the spring does not affect the cargo package to be transferred; the design of the wedge slider and the spring ensures stable contact with the cargo package during the pressing process, and avoids the influence of the spring retraction on the transfer, thereby improving the reliability and service life of the system, and the coordinated design of the mover and the bottom platform makes the transfer process more efficient and reduces the transfer time.

[0019] This Summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key features or essential features of the disclosure, nor is it intended to limit the scope of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the structure of a space storage and transfer platform provided by the present invention in which a lead screw drives a wedge block to press downward;

[0022] Figure 2 A schematic diagram of the structure of the first external fixed side plate provided by the present invention;

[0023] Figure 3 A schematic diagram of the structure of the first internal fixed side plate provided by the present invention;

[0024] Figure 4 A schematic diagram of the structure of the second inner fixed side plate provided by the present invention;

[0025] Figure 5 Schematic diagram of the second external fixed side plate structure provided by the present invention

[0026] Figure 6 A schematic diagram of the structure of the screw pressing device provided by the present invention;

[0027] Figure 7 A schematic diagram of the structure of the transfer platform provided by the present invention;

[0028] Figure 8 A schematic diagram of the structure of the mover provided by the present invention;

[0029] Fig. 9 A schematic structural diagram of a permanent magnet assembly provided by the present invention;

[0030] Fig.10 An exploded view of the wedge block provided by the present invention.

[0031] Description of reference numerals:

[0032] 1. Top plate; 2. First outer fixed side plate; 3. First inner fixed side plate; 4. Second inner fixed side plate; 5. Second outer fixed side plate; 6. Baffle; 7. Screw mounting block; 8. Rotating screw; 9. Wedge block; 10. Lower yoke; 11. Transfer track; 12. Frame; 13. Coil; 14. Mover frame; 15. Cargo package receiving plate; 16. Universal ball; 17. Permanent magnet assembly; 18. Screw matching block; 19. Spring; 20. Wedge slider; 21. Ball screw; 22. Magnetic block; 23. Cargo package. DETAILED DESCRIPTION

[0033] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present disclosure. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0034] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0035] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0036] In the present disclosure, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] The disclosure below provides many different embodiments or examples to realize different structures of the present disclosure. In order to simplify the disclosure of the present disclosure, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present disclosure. In addition, the present disclosure can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present disclosure provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0038] The preferred embodiments of the present disclosure are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0039] See also Figures 1 to 10 As shown, the present invention provides a spatial storage and transfer platform with a screw-driven wedge block 9 pressing down, comprising: a storage device, the storage device comprising a top plate 1 and a storage mechanism, a screw pressing device, the storage mechanism is arranged at the bottom of the top plate 1, the storage mechanism is used to store a cargo package 23, and the screw pressing device is arranged in the storage mechanism, the wedge block 9 of the screw pressing device is suitable for being inserted into the cargo package 23 and connected to the cargo package 23; the wedge block 9 comprises a screw matching block 18, a spring 19 and a wedge slider 20, the wedge slider 20 is slidably arranged in the groove of the screw matching block 18, one end of the spring 19 is connected to the wedge slider 20, and the other end is connected to the screw matching block 18; a transfer platform, comprising a bottom platform and a mover, the bottom platform is arranged at the bottom of the storage mechanism, the mover is arranged on the bottom platform, and the mover is used to transfer the cargo package 23.

[0040] By setting the storage mechanism at the bottom of the top plate 1, the storage mechanism can store bags 23 of different sizes; at the same time, the screw pressing device is installed in the storage mechanism, and the wedge block 9 of the screw pressing device is inserted into the bag 23, so as to realize the connection between the screw pressing device and the bag 23, wherein the wedge slider 20 is slidably set in the groove of the screw matching block 18, that is, the wedge slider 20 can slide in the screw matching frame, and since a spring 19 is provided between the screw matching block 18 and the wedge slider 20, the screw pressing device smoothly contacts the bag 23 during the process of driving the wedge slider 20 to press down. The bag 23 can be driven downward by the screw pressing device and fall into the mover of the transfer platform. Then, the transfer of the bag 23 is realized by the cooperation between the mover and the bottom platform. In this process, the bag 23 that has not been transferred will be fixed by the ball screw 21 on the storage mechanism where it is located, so as to realize the transfer of a single bag 23.

[0041] Compared with the existing cargo package 23 transfer method, the spatial storage and transfer platform with a screw-driven wedge block 9 can better adapt to the working environment and has a high level of structural integration and integration. The wedge block 9 driven by the screw-driven pressing device is pressed down to ensure the accurate transfer of the required cargo package 23. The setting of the wedge-shaped slider 20 ensures that when the screw-driven pressing device drives the wedge block 9 to rise, the retraction of the spring 19 does not affect the cargo package 23 to be transferred. At the same time, the transfer efficiency is improved.

[0042] In some optional embodiments, the cross section of the wedge-shaped slider 20 is a right-angle trapezoid. That is, the wedge-shaped slider 20 has an upper slope structure and a lower plane structure; the upper slope structure ensures that the spring 19 retracts when the lead screw drives the upward movement without affecting the cargo bag 23 to be transferred, and the lower plane structure ensures that a stable output force can be provided for downward pressure.

[0043] Specifically, the storage mechanism includes a first external fixed side plate 2 and a first internal fixed side plate 3, a second internal fixed side plate 4, a second external fixed side plate 5, and a baffle 6 that are arranged at intervals. The first external fixed side plate 2 and the first internal fixed side plate 3, the second internal fixed side plate 4, the second external fixed side plate 5, and the baffle 6 are all connected to the top plate 1, and the screw pressing device is arranged on the first external fixed side and the first internal fixed side plate 3, and the second internal fixed side plate 4.

[0044] The first outer fixed side panel 2 and the first inner fixed side panel 3, the second inner fixed side panel 4, the second outer fixed side panel 5, and the baffle plate 6 are all connected to the top panel 1, which ensures the stability of the connection between the first outer fixed side panel 2 and the first inner fixed side panel 3, the second inner fixed side panel 4, the second outer fixed side panel 5, and the baffle plate 6 and the top panel 1; the first outer fixed side panel 2 and the first inner fixed side panel 3, the second inner fixed side panel 4, and the second outer fixed side panel 5 together constitute three accommodating spaces, and the cargo packages 23 are arranged in the three accommodating spaces, and the sizes of the cargo packages 23 in the three accommodating spaces can be the same or different; the cargo packages 23 in each accommodating space have two rows, of course, it can also be set to multiple rows, which can be set according to the actual situation.

[0045] The baffle 6 is arranged at both ends of the first outer fixed side panel 2 and the first inner fixed side panel 3, the second inner fixed side panel 4, and the second outer fixed side panel 5, and can cooperate with the first outer fixed side panel 2 and the first inner fixed side panel 3, the second inner fixed side panel 4, and the second outer fixed side panel 5 to accommodate the cargo package 23 and prevent the cargo package 23 from moving.

[0046] The length of the baffle 6 is smaller than the length of the first outer fixed side plate 2 and the first inner fixed side plate 3 , the second inner fixed side plate 4 , and the second outer fixed side plate 5 , that is, a transfer space needs to be reserved for the cargo package 23 at the bottom layer.

[0047] In some optional embodiments, a plurality of ball screws 21 are provided at intervals on the first outer fixed side plate 2, the first inner fixed side plate 3, the second inner fixed side plate 4, and the second outer fixed side plate 5, and the ball screws 21 are used to fix the position of the cargo bag 23. That is, the ball screws 21 can be used to clamp the cargo bag 23 to fix the position of the cargo bag 23. When the cargo bag 23 needs to fall onto the transfer platform, the screw pressing device can be used to press the cargo bag 23 downward, and the spring 19 of the ball screw 21 is contracted, so that the cargo bag 23 at the bottom falls onto the mover.

[0048] Among them, the screw pressing device includes a screw mounting block 7 and a rotating screw 8, the screw mounting block 7 is located on the storage mechanism and is connected to the top plate 1, the rotating screw 8 is connected to the screw mounting block 7 and the motor, and the wedge block 9 is arranged on the rotating screw 8.

[0049] Specifically, a mounting position is provided for the rotating screw 8 through the screw mounting block 7, and the rotating screw 8 is connected to the motor, which can be used to provide power for the rotating screw 8, thereby driving the wedge block 9 to perform lifting and lowering movements on the rotating screw 8, thereby realizing the function of pressing down the cargo package 23.

[0050] The motor that provides the adsorption force can accurately realize movement in two horizontal directions. The adsorption force ensures that it can adapt to the microgravity environment of space, while avoiding the mass and volume of additional mechanical transmission.

[0051] In this embodiment, the bottom platform includes a lower magnetic yoke 10, a transfer track 11, a frame 12, and a coil 13. The transfer track 11 and the frame 12 are arranged on the lower magnetic yoke 10, and the coil 13 is wound on the frame 12. A plurality of installation spaces are reserved inside the transfer track 11 for the coil 13. The frame 12 and the coil 13 are arranged in an array and grouped in the installation space.

[0052] The transfer track 11 and the frame 12 are both fixed to the lower magnetic yoke 10 by screws, thereby ensuring the stability of the connection.

[0053] Specifically, the mover includes a mover frame 14 and a cargo package receiving plate 15, a universal bead 16, and a permanent magnet assembly 17. The cargo package receiving plate 15 is arranged on the mover frame 14, the universal bead 16 is located at the bottom of the mover frame 14, the universal bead 16 is abutted against the transfer track 11, the permanent magnet assembly 17 is located in the mover frame 14, and the permanent magnet assembly 17 is arranged on the mover frame 14.

[0054] Among them, the cargo package receiving plate 15 and the universal bead 16 are installed on the mover frame 14 by screws, the permanent magnet assembly 17 is arranged in an array in a staggered manner and installed on the mover frame 14 by screws, and the mover slides on the transfer track 11 through the bottom universal bead 16.

[0055] The cargo bag receiving plate 15 is U-shaped, so that the cargo bag 23 is placed in the cargo bag receiving plate 15 for transportation.

[0056] In actual use, the coil 13 in the transfer platform is energized, and a force in the X direction or Y direction is generated in the permanent magnetic field generated by the lower magnetic yoke 10 and the permanent magnet assembly 17. The mover generates a permanent magnetic adsorption force between the four groups of Halbach permanent magnet assemblies 17 and the coil 13. While passively and reliably adsorbing, the energized coil 13 is used to generate a driving force to achieve two-degree-of-freedom translation.

[0057] Taking the X-direction force as an example, the permanent magnetic circuit in the gap is: the magnetic flux starts from the N pole of the left vertical permanent magnet assembly 17, passes through the lower magnetic yoke 10, and returns to the S pole of the right vertical permanent magnet assembly 17. The left side of the middle transverse permanent magnet assembly 17 is the N pole, and passes through the lower magnetic yoke 10 to return to the right S pole. The permanent magnetic flux in the gap is the superposition of the magnetic fluxes of the vertical permanent magnet assembly 17 and the transverse permanent magnet assembly 17. The upper permanent magnetic circuit is: the magnetic flux starts from the N pole of the right vertical permanent magnet assembly 17, passes through the lower magnetic yoke 10, and returns to the S pole of the left vertical permanent magnet assembly 17. The left side of the middle transverse permanent magnet assembly 17 is the N pole, and passes through the lower magnetic yoke 10 to return to the right S pole. The upper permanent magnetic flux is the difference between the magnetic fluxes of the vertical permanent magnet assembly 17 and the transverse permanent magnet assembly 17. The diagonal permanent magnet assemblies 17 generate electromagnetic forces in the same direction. When moving, the corresponding coils 13 can be energized according to the requirements of the movement direction.

[0058] The magnetization direction of the permanent magnets in the permanent magnet assembly 17 from left to right is S on top and N on bottom, N on left and S on right, and N on top and S on bottom. Of course, the magnetization direction of the permanent magnets in the permanent magnet assembly 17 from left to right can also be N on top and S on bottom, S on left and N on right, and S on top and N on bottom. Specifically, it can be set according to actual conditions.

[0059] A magnetic block 22 may also be provided on the cargo bag receiving plate 15. The provision of the magnetic block 22 facilitates the adsorption of the cargo bag receiving plate 15 and the cargo bag 23, thereby ensuring the stability of the cargo bag 23 during transportation and preventing the movement of the cargo bag 23.

[0060] The lower magnetic yoke 10 is made of soft magnetic alloy 1J50 material; the permanent magnet assembly 17 is made of NdFeB alloy hard magnetic material.

[0061] The working principle of the space storage and transfer platform with the screw-driven wedge block 9 pressing down is as follows:

[0062] Each cargo package 23 is locked by a set of ball screws 21 in the storage space to realize daily storage of each cargo package 23. Each column of the storage space stores cargo packages 23 of one size and type.

[0063] When the task requires the transport of a certain type of cargo package 23, the corresponding screw pressing device is energized, the rotating screw 8 rotates, and the wedge block 9 is driven to move downward. The wedge block 9 cooperates with the groove on the side of the cargo package 23, and presses the cargo package 23 downward to overcome the locking force of the ball screw 21, and presses it to the mover of the transfer platform. The magnetic sheet under the cargo package 23 is adsorbed by the magnetic block 22 on the mover, so that the position of the cargo package 23 on the cargo package receiving plate 15 is fixed. Then the rotating screw 8 is reversed, driving the wedge block 9 to move upward, and the upper inclined surface of the wedge slider 20 is subjected to force, and the compression spring 19 is completely retracted. Therefore, the upward movement stage of the wedge block 9 will not affect the cargo package 23;

[0064] The permanent magnet assembly 17 in the mover and the lower magnetic yoke 10 generate an adsorption force to ensure that the mover is always located above the transfer track 11. During horizontal transportation, the coil 13 at the bottom of the transfer platform is energized. Since the coil 13 is in the magnetic field formed by the upper magnetic yoke of the mover, the permanent magnet assembly 17 and the lower magnetic yoke 10, an electromagnetic force is generated, which can drive the mover to move. The adjacent permanent magnet assemblies 17 in the staggered array of the permanent magnet assemblies 17 generate a magnetic force perpendicular to the horizontal direction, and the diagonal permanent magnet assemblies 17 generate an electromagnetic force in the same direction. During movement, the corresponding coils 13 are energized according to the requirements of the movement direction.

[0065] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A space storage and transfer platform with a screw-driven wedge block pressing down, characterized in that: include: A storage device, the storage device comprising a top plate (1) and a storage mechanism and a screw pressing device, the storage mechanism being arranged at the bottom of the top plate (1), the storage mechanism being used to store a cargo bag (23), and the screw pressing device being arranged in the storage mechanism, the wedge block (9) of the screw pressing device being suitable for being inserted into the cargo bag (23) and being connected to the cargo bag (23); the wedge block (9) comprising a screw matching block (18), a spring (19) and a wedge slide block (20), the wedge slide block (20) being slidably arranged in a groove of the screw matching block (18), one end of the spring (19) being connected to the wedge slide block (20), and the other end being connected to the screw matching block (18); The transfer platform comprises a bottom platform and a mover, wherein the bottom platform is arranged at the bottom of the storage mechanism, and the mover is arranged on the bottom platform, and the mover is used for transferring cargo packages (23).

2. The spatial storage and transfer platform with a screw-driven wedge block pressing down according to claim 1 is characterized in that: The cross section of the wedge-shaped sliding block (20) is a right-angled trapezoid.

3. The spatial storage and transfer platform with a screw-driven wedge block pressing down according to claim 1 is characterized in that: The storage mechanism comprises a first external fixed side plate (2) and a first internal fixed side plate (3), a second internal fixed side plate (4), a second external fixed side plate (5), and a baffle plate (6) which are arranged at intervals; the first external fixed side plate (2) and the first internal fixed side plate (3), the second internal fixed side plate (4), the second external fixed side plate (5), and the baffle plate (6) are all connected to the top plate (1); and the screw pressing device is arranged on the first external fixed side and the first internal fixed side plate (3), and the second internal fixed side plate (4).

4. The spatial storage and transfer platform with a screw-driven wedge block pressing down according to claim 2 is characterized in that: A plurality of ball screws (21) are arranged at intervals on the first outer fixed side plate (2), the first inner fixed side plate (3), the second inner fixed side plate (4), and the second outer fixed side plate (5), and the ball screws (21) are used to fix the position of the cargo bag (23).

5. The spatial storage and transfer platform with a screw-driven wedge block pressing down according to claim 3 is characterized in that: The screw pressing device comprises a screw mounting block (7) and a rotating screw (8); the screw mounting block (7) is located on the storage mechanism and connected to the top plate (1); the rotating screw (8) is connected to the screw mounting block (7) and the motor; and the wedge block (9) is arranged on the rotating screw (8).

6. The spatial storage and transfer platform with a screw-driven wedge block pressing down according to any one of claims 1 to 5, characterized in that: The bottom platform comprises a lower magnetic yoke (10), a transfer track (11), a frame (12), and a coil (13); the transfer track (11) and the frame (12) are arranged on the lower magnetic yoke (10); the coil (13) is wound on the frame (12); a plurality of installation spaces are reserved inside the transfer track (11) for the coil (13); and the frame (12) and the coil (13) are arranged in an array and arranged in the installation space.

7. The spatial storage and transfer platform with a screw-driven wedge block pressing down according to claim 6 is characterized in that: The mover comprises a mover frame (14), a cargo bag (23) receiving plate (15), a universal bead (16), and a permanent magnet assembly (17); the cargo bag (23) receiving plate (15) is arranged on the mover frame (14); the universal bead (16) is located at the bottom of the mover frame (14); the universal bead (16) abuts against the transfer track (11); the permanent magnet assembly (17) is located in the mover frame (14); and the permanent magnet assembly (17) is arranged on the mover frame (14).

8. The spatial storage and transfer platform with a screw-driven wedge block pressing down according to claim 7 is characterized in that: A magnetic block (22) is provided on the receiving plate (15) of the cargo bag (23).

9. The spatial storage and transfer platform with a screw-driven wedge block pressing down according to claim 7, characterized in that: The lower magnetic yoke (10) is made of soft magnetic alloy 1J50 material.

10. The spatial storage and transfer platform with a screw-driven wedge block pressing down according to claim 7, characterized in that: The permanent magnet assembly (17) is made of a NdFeB alloy hard magnetic material.

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