A lifting and reversing device and system

Abstract

The invention discloses a lifting and reversing device and a system. The lifting and reversing device consists of a longitudinal driving mechanism and a transverse driving mechanism. The device is applied to a conveyor line and a stereoscopic warehouse system to realize the longitudinal and transverse reversing movement of an unpowered rail flat car. The lifting height of the longitudinal lifting mechanism is consistent with the lifting height of the transverse lifting mechanism. During the reversing period, the driving mechanism to be reversed is first raised to contact the unpowered rail flat car to provide a bearing capacity, and then the driving mechanism in the original direction is lowered to remove the bearing capacity. The two are raised and lowered one by one, and are raised first and then lowered. In the reversing process, the rising lifting mechanism does not need to bear the weight of the goods of the unpowered rail flat car, and the descending lifting mechanism does not need to bear the weight of the goods transported by the unpowered rail flat car. While ensuring the smooth reversing of the unpowered rail flat car, the technical progress of high efficiency, low energy consumption and low investment is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of logistics warehousing equipment, and in particular relates to a lifting and reversing device and system. Background Art

[0002] In facilities such as high-rise warehouses and high-rise parking lots, the longitudinal and lateral transportation of goods in the high-rise warehouse is usually achieved by using four-way shuttle technology, lifting and lateral movement technology or wheel reversing technology.

[0003] The four-way shuttle technology itself is a logistics vehicle with power drive. In the three-dimensional warehouse or conveyor line, it relies on its own longitudinal and transverse wheels to switch directions by lifting and lowering itself, so as to achieve the purpose of longitudinal and transverse reversal operation. The lifting and transverse shifting technology is generally used on the conveyor line body. When the pallet goods are turned from longitudinal or transverse to transverse or longitudinal operation, after the pallet goods stop in the intersection area, the bottom is lifted by the lifting mechanism to lift the reversing drive unit out of the original direction conveyor line and align it with the intended conveying direction conveyor line. The pallet goods are driven by the power conveyor line to turn to the destination. The wheel reversing technology is in the three-dimensional parking garage. The bottom of the vehicle loading plate is specially designed with a tic-tac-toe cross track. Each power unit in the three-dimensional warehouse is designed with a power friction wheel that can be reversed at right angles. When reversing at right angles, the motor drives the connecting rod to push the twistable power friction wheel to rotate at right angles, so that the power friction wheel engages with the reversing track, thereby achieving the purpose of right-angle reversal operation of the vehicle loading plate.

[0004] However, when the above-mentioned prior art is applied to the scenario where large-volume and heavy-weight goods are transported vertically and horizontally in a stereoscopic warehouse or a conveyor line, there are problems of low efficiency, high energy consumption, and high investment, making it impossible to implement. Summary of the invention

[0005] The purpose of the present invention is to propose a jacking and reversing device and system, which are suitable for conveying lines in logistics transportation scenarios and storage cargo conveying lines in stereoscopic warehouses. The jacking and reversing device cooperates with a longitudinal jacking mechanism and a transverse jacking mechanism. When the unpowered rail flat car is in longitudinal and transverse reversing operation, the longitudinal to transverse or transverse to longitudinal switching can be achieved by raising and lowering the two. During the switching process, the rising jacking mechanism does not need to bear the weight of the cargo transported by the unpowered rail flat car, and the descending jacking mechanism does not need to bear the weight of the cargo transported by the unpowered rail flat car, thereby achieving high efficiency, low energy consumption, and low investment technical effects, making the longitudinal and transverse movement of large cargo that is impossible to achieve in a stereoscopic warehouse possible.

[0006] The present invention is implemented by the following technical solutions: A lifting and reversing device is proposed, which is used to drive an unpowered rail flat car to move longitudinally and transversely, including a longitudinal driving mechanism for driving the unpowered rail flat car to do longitudinal transportation and a transverse driving mechanism for driving the unpowered rail flat car to do transverse transportation; The longitudinal driving mechanism is composed of a longitudinal wheel set, a longitudinal driving motor and a longitudinal lifting mechanism; wherein the longitudinal wheel set and the longitudinal driving motor are assembled on a longitudinal base; the longitudinal lifting mechanism is fixedly installed between the longitudinal base and the device base; The transverse driving mechanism is composed of a transverse wheel set, a transverse driving motor and a transverse lifting mechanism; wherein the transverse wheel set and the transverse driving motor are assembled on a transverse base; and the transverse lifting mechanism is fixedly installed between the transverse base and the device base; When the non-powered rail flat car switches from transverse operation to longitudinal operation, the longitudinal lifting mechanism lifts the longitudinal base to allow the longitudinal wheel set to engage with the longitudinal guide rail on the back of the non-powered rail flat car, and the transverse lifting mechanism lowers the transverse base to allow the transverse wheel set to separate from the transverse guide rail on the back of the non-powered rail flat car; When the unpowered rail flat car switches from longitudinal operation to transverse operation, the transverse lifting mechanism lifts the transverse base to allow the transverse wheel set to engage with the transverse guide rail on the back of the unpowered rail flat car, and the longitudinal lifting mechanism lowers the longitudinal base to allow the longitudinal wheel set to separate from the longitudinal guide rail on the back of the unpowered rail flat car.

[0007] The bottom of the non-powered rail flat car is provided with longitudinal guide rails and transverse guide rails. The longitudinal wheel set is assembled with the longitudinal guide rails, and the longitudinal drive motor drives the longitudinal wheel set, so that the longitudinal wheel set allows the non-powered rail flat car to run longitudinally based on the guidance of the longitudinal guide rails; the transverse wheel set is assembled with the transverse guide rails arranged at the bottom of the non-powered rail flat car, and the transverse drive motor drives the transverse wheel set, so that the transverse wheel set allows the non-powered rail flat car to run transversely based on the guidance of the transverse guide rails.

[0008] The lifting heights of the longitudinal lifting mechanism and the transverse lifting mechanism are consistent, so as to ensure that the height at which the longitudinal lifting mechanism lifts the unpowered rail flat car is consistent with the height at which the transverse lifting mechanism lifts the unpowered rail flat car.

[0009] Compared with the prior art, the advantages and positive effects of the present invention are as follows: the lifting and reversing device proposed in the present invention is composed of a longitudinal drive mechanism and a transverse drive mechanism, the longitudinal drive mechanism is composed of a longitudinal wheel group, a longitudinal drive motor and a longitudinal lifting mechanism, the transverse drive mechanism is composed of a transverse wheel group, a transverse drive motor and a transverse lifting mechanism, the longitudinal wheel group and the longitudinal drive motor are assembled on the longitudinal base, and the longitudinal lifting mechanism is assembled between the bottom of the longitudinal base and the device base, and is used to lift or lower the longitudinal base; the transverse drive mechanism is composed of a transverse wheel group, a transverse drive motor and a transverse lifting mechanism, the transverse wheel group and the transverse drive motor are assembled on the transverse base, and the transverse lifting mechanism is assembled between the bottom of the transverse base and the device base, and is used to lift or lower the longitudinal base ; When the non-powered rail flat car needs to switch from longitudinal to transverse operation, the transverse jacking mechanism lifts the transverse base to allow the transverse wheel set to engage with the transverse guide rail on the back of the non-powered rail flat car, and then the longitudinal jacking mechanism lowers the longitudinal base to separate the longitudinal wheel set from the longitudinal guide rail on the back of the non-powered rail flat car, and the transverse drive motor drives the transverse wheel set to allow the non-powered rail flat car to run transversely; similarly, when the non-powered rail flat car needs to switch from transverse to longitudinal operation, the longitudinal jacking mechanism lifts the longitudinal base to allow the longitudinal wheel set to engage with the longitudinal guide rail on the back of the non-powered rail flat car, and then the transverse jacking mechanism lowers the transverse base to separate the transverse wheel set from the transverse guide rail on the back of the non-powered rail flat car, and the longitudinal drive motor drives the longitudinal wheel set to allow the non-powered rail flat car to run longitudinally. The present invention is based on the above structural design. When the unpowered rail flat car needs to switch longitudinally and transversely, the longitudinal drive mechanism and the transverse drive mechanism are raised and lowered one by one, and the lifting mechanism is raised first and then lowered. During the switching process, the rising lifting mechanism does not need to bear the weight of the unpowered rail flat car and the goods transported, and the lowering lifting mechanism does not need to bear the weight of the unpowered rail flat car and the goods transported, thereby achieving the technical effects of high efficiency, low energy consumption and low investment. The so-called high efficiency means that the lifting time is short, low energy consumption means that the lifting motor does not need to bear the weight of the goods transported by the unpowered rail flat car during the lifting and lowering of the longitudinal or transverse wheel set, so that the output power is small, and low investment means that the lifting motor does not need to bear the weight of the unpowered rail flat car, so that the lifting motor can use a small motor, and the small motor occupies a small space, so that the floor height of the stereoscopic warehouse is small, which brings the advantage of low investment.

[0010] In some embodiments of the present invention, the longitudinal lifting mechanism uses a longitudinal screw lifting device, and a longitudinal lifting motor drives multiple longitudinal screw lifting devices through a longitudinal transmission shaft; the transverse lifting mechanism uses a transverse screw lifting device, and a transverse lifting motor drives multiple transverse screw lifting devices through a transverse transmission shaft; and the longitudinal transmission shaft of the longitudinal lifting motor and the transverse transmission shaft of the transverse lifting motor are perpendicular to each other in the vertical direction.

[0011] In some embodiments of the present invention, an output end of the longitudinal lifting motor and an output end of the transverse lifting motor have a height difference, and the height difference is at least greater than the diameter of the transmission shaft.

[0012] In some embodiments of the present invention, the base of the lifting and reversing device is a rectangular structure, referred to as a rectangular device base. The longitudinal drive mechanism is assembled at the top and middle of the device base in the length direction, and the transverse drive mechanism is assembled at the top of the device base in the width direction.

[0013] In some embodiments of the present invention, the longitudinal drive mechanism further includes a longitudinal drive motor; the longitudinal wheel set includes a longitudinal driving wheel and a longitudinal driven wheel; wherein the wheel axle of the longitudinal driving wheel is directly or indirectly connected to the output shaft of the longitudinal drive motor. The transverse drive mechanism further includes a transverse drive motor; the transverse wheel set includes a transverse driving wheel and a transverse driven wheel; wherein the wheel axle of the transverse driving wheel is directly or indirectly connected to the output shaft of the transverse drive motor.

[0014] In some embodiments of the present invention, the longitudinal driving wheel and the longitudinal driven wheel are arranged at intervals, and the longitudinal driving wheels are linked by a synchronous belt or chain; the transverse driving wheel and the transverse driven wheel are arranged at intervals, and the transverse driving wheels are linked by a synchronous belt or chain.

[0015] In some embodiments of the present invention, the longitudinal wheel set and the transverse wheel set are both friction wheel sets; the friction wheel is a double-wing wheel or a single-wing wheel, and the double wings or the single wing are used to limit the mutual engagement between the friction wheel and the guide rail on the back of the unpowered rail flat car.

[0016] A channel for the passage of the transverse friction wheel wing is opened at the intersection of the longitudinal guide rail and the transverse guide rail arranged at the bottom of the unpowered rail flat car; a channel for the passage of the longitudinal friction wheel wing is opened at the intersection of the transverse guide rail and the longitudinal guide rail arranged at the bottom of the unpowered rail flat car.

[0017] A lifting and reversing system is proposed, which is applied to a three-dimensional warehouse. The three-dimensional warehouse is composed of several loading layers, each loading layer is composed of multiple longitudinal conveying lines arranged in parallel, and each longitudinal conveying line is composed of multiple lifting and reversing devices with rectangular device bases arranged longitudinally; the lifting and reversing device is the lifting and reversing device as described above.

[0018] A lifting and reversing system is proposed, which is applied to a stereoscopic warehouse. The stereoscopic warehouse is composed of several loading layers, each loading layer is composed of several longitudinal conveying lines arranged in parallel, and each longitudinal conveying line is composed of several rectangular device bases arranged longitudinally; several longitudinal conveying lines of equal length are arranged side by side to form a matrix structure, and transverse conveying lines are arranged at opposite ends of the matrix structure respectively, and the transverse conveying line is composed of lifting and reversing devices of several rectangular device bases arranged transversely; the lifting and reversing device is the lifting and reversing device as described above; only the longitudinal wheel set and the longitudinal driving motor of the lifting and reversing device are fixed on the longitudinal conveying line, and the horizontal height of the longitudinal wheel set is consistent with the horizontal height of the longitudinal wheel set after being lifted by the lifting and reversing device, so that any two longitudinal conveying lines form a closed loop through the lifting and reversing devices on the transverse conveying lines at both ends.

[0019] A lifting and reversing system is proposed, which is applied to a stereoscopic warehouse. The stereoscopic warehouse is composed of a plurality of loading layers, a longitudinal cargo conveying channel is arranged in the middle of each loading layer, and the longitudinal cargo conveying channel is formed by a lifting and reversing device of a plurality of rectangular device bases; the lifting and reversing device is the lifting and reversing device as described above; a cargo storage area is formed by a transverse conveying line of a plurality of rectangular device bases arranged correspondingly on both sides of the longitudinal cargo conveying channel; only a transverse wheel group and a transverse driving motor of the lifting and reversing device are fixed on the rectangular device base of the transverse conveying line, and the horizontal height of the transverse wheel group is consistent with the horizontal height of the transverse wheel group after being lifted by the lifting and reversing device on the longitudinal cargo conveying channel.

[0020] A lifting and reversing system is proposed, which is applied to transporting goods on a cross-shaped reversing conveyor line. The cross-shaped conveyor line consists of a longitudinal conveyor line body and a transverse conveyor line body which cross each other vertically. The longitudinal conveyor line body consists of a plurality of rectangular device bases arranged vertically, and the transverse conveyor line body consists of a plurality of rectangular device bases arranged horizontally. The lifting and reversing device as described above is arranged at the intersection of the longitudinal conveyor line body and the transverse conveyor line body. Only the longitudinal wheel set and the longitudinal driving motor of the lifting and reversing device are arranged on the rectangular device base of the longitudinal conveyor line body outside the intersection, and only the transverse wheel set and the transverse driving motor of the lifting and reversing device are arranged on the rectangular device base of the transverse conveyor line body outside the intersection, and the horizontal heights of the longitudinal wheel set and the transverse wheel set are the same as the horizontal heights of the longitudinal wheel set and the transverse wheel set lifted by the lifting and reversing device arranged at the vertical intersection.

[0021] Compared with the prior art, the advantages and positive effects of the present invention are: the jacking and reversing system proposed in the present invention can be configured in the conveying line of the stereoscopic warehouse in the application of the stereoscopic warehouse, so that the unpowered rail flat car can achieve longitudinal and transverse reversal. During the reversing period, the longitudinal and transverse driving mechanisms are combined with the rising and falling of the mechanism first and then the falling, so that any jacking and reversing device does not need to bear the weight of the goods transported by the unpowered rail flat car, but only needs to bear the weight of the wheel set, the driving motor and the base. The positive effects brought about include: small power motors can be used instead of high power motors, small size motors can be used instead of large size motors, the operation and transportation efficiency can be improved, the failure rate can be reduced, the floor height of the stereoscopic warehouse can be reduced, and the investment cost can be greatly reduced.

[0022] The lifting and reversing devices as described above can be evenly arranged on the longitudinal conveying line body and the transverse conveying line body of the stereoscopic warehouse, so that the unpowered rail flat car can move in this crisscross matrix like Huarongdao to find the shortest path; In some application scenarios, a longitudinal conveyor line body is formed by a plurality of rectangular device bases arranged longitudinally, and a plurality of longitudinal conveyor line bodies are arranged side by side to form a matrix, and transverse conveyor lines with lifting and reversing devices are arranged at the opposite ends respectively. Only longitudinal wheel groups and longitudinal drive motors are fixedly arranged on the longitudinal conveyor line body, and the horizontal height of the longitudinal wheel groups is consistent with the horizontal height of the longitudinal wheel groups after being lifted by the lifting and reversing devices on the transverse conveyor line body. Therefore, any two longitudinal conveyor lines form a closed loop through the transverse conveyor lines at both ends.

[0023] In some application scenarios, a longitudinal conveyor line equipped with a lifting and reversing device is used as a cargo conveying channel, and transverse conveyor lines arranged on both sides of the channel are used to store cargo. Only transverse wheel groups and transverse drive motors are fixedly arranged on the transverse conveyor lines. The horizontal height of the transverse wheel groups is consistent with the horizontal height of the transverse wheel groups after being lifted by the lifting and reversing device on the longitudinal conveyor line. This layout is conducive to efficient and low-cost transportation and storage of cargo.

[0024] In some application scenarios, it is used to transport goods on a cross-shaped reversing conveyor line, and the cross-shaped conveyor line is composed of a longitudinal conveyor line body and a transverse conveyor line body that cross each other perpendicularly; the longitudinal conveyor line body is composed of a plurality of rectangular device bases arranged longitudinally, and the transverse conveyor line body is composed of a plurality of rectangular device bases arranged transversely; the jacking and reversing device as described above is arranged at the intersection of the longitudinal conveyor line body and the transverse conveyor line body; and only the longitudinal wheel group and the longitudinal drive motor of the jacking and reversing device are arranged on the rectangular device base of the longitudinal conveyor line body outside the intersection, and only the transverse wheel group and the transverse drive motor of the jacking and reversing device are arranged on the rectangular device base of the transverse conveyor line body outside the intersection, and the horizontal heights of the longitudinal wheel group and the transverse wheel group are the same as the horizontal heights of the longitudinal wheel group and the transverse wheel group lifted by the jacking and reversing device arranged at the vertical intersection.

[0025] Other features and advantages of the present invention will become more apparent after reading the detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the accompanying drawings described below are only some embodiments. For those skilled in the art, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0027] Figure 1 The overall structure of the lifting and reversing device proposed by the present invention is schematically shown; Figure 2 This is a schematic diagram of the base structure of the jacking and reversing device proposed by the present invention; Figure 3 This is a schematic diagram of the longitudinal lifting mechanism structure of the lifting reversing device proposed by the present invention; Figure 4 This is a schematic diagram of the structure of the lateral lifting mechanism of the lifting reversing device proposed by the present invention; Figure 5 This is a schematic diagram of the structure of the lifting and reversing device proposed by the present invention; Figure 6 It is a schematic diagram of the structure of the driving mechanism of the lifting and reversing device proposed by the present invention; Figure 7 It is a schematic diagram of the bearing capacity of the longitudinal drive mechanism in the lifting and reversing device proposed by the present invention; Figure 8 It is a schematic diagram of the bearing capacity of the transverse driving mechanism in the jacking and reversing device proposed by the present invention; Fig. 9 This is a schematic diagram of the back structure of the unpowered rail flat car in the jacking and reversing system proposed by the present invention; Fig.10 It is a schematic diagram of the partial structure of the back side of the unpowered rail flat car in the jacking and reversing system proposed by the present invention; Fig.11 This is a schematic diagram of the structure of the Zhongrongdao type conveyor line of the jacking and reversing system proposed in the present invention; Fig.12 This is a schematic diagram of the multi-circulation conveyor line structure in the jacking and reversing system proposed by the present invention; Fig.13 This is a schematic diagram of the non-shaped channel type conveyor line structure in the jacking and reversing system proposed by the present invention; Fig.14 This is a schematic diagram of the cross-shaped conveyor line structure in the jacking and reversing system proposed by the present invention; Figure numerals: 1. Unpowered rail flat car; 11. Longitudinal guide rail; 12. Transverse guide rail; 131. Channel through which the two wings of the longitudinal friction wheel pass; 132. Channel through which the two wings of the longitudinal friction wheel pass; 2. Longitudinal wheel set; 21. Longitudinal drive motor; 22. Longitudinal base; 3. Longitudinal lifting mechanism; 31. Longitudinal lifting motor; 32. Longitudinal transmission shaft; 33. Longitudinal screw lifting device; 4. Transverse wheel set; 41. Transverse drive motor; 42. Transverse base; 5. Transverse lifting mechanism; 51. Transverse lifting motor; 52. Transverse transmission shaft; 53. Transverse screw lifting device; 6. Device base.

[0028] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "inside", "outside", "longitudinal", "lateral", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0031] In the description of the present invention, 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 or an electrical connection; it can be directly connected or connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] The jacking and reversing device proposed in the present invention is applied to a stereoscopic warehouse, such as a stereoscopic parking garage, a stereoscopic container yard, a stereoscopic logistics warehouse, etc. The storage structure of each layer of the stereoscopic warehouse is composed of a plurality of longitudinal and / or transverse conveyor lines. The jacking and reversing device provided in the present invention is arranged on the conveyor line. When the unpowered rail flat car runs onto the jacking and reversing device, the longitudinal and transverse switching on the conveyor line is realized by driving the jacking and reversing device.

[0033] Specifically, Figures 1 to 10 As shown, the lifting and reversing device includes a longitudinal driving mechanism for driving the unpowered rail flat car 1 for longitudinal transportation and a transverse driving mechanism for driving the unpowered rail flat car 1 for transverse transportation. A longitudinal guide rail 11 and a transverse guide rail 12 are arranged at the bottom of the unpowered rail flat car 1.

[0034] The longitudinal driving mechanism is composed of a longitudinal wheel set 2, a longitudinal driving motor 21 and a longitudinal lifting mechanism, wherein the longitudinal lifting mechanism is composed of a longitudinal lifting motor 31, a longitudinal transmission shaft 32 and a longitudinal screw lifting device 33; the longitudinal wheel set 2 and the longitudinal driving motor 21 are assembled on the longitudinal base 22, and the longitudinal lifting motor 31 and the longitudinal screw lifting device 33 are assembled between the longitudinal base 22 and the device base 6, and are used to lift or lower the longitudinal base 22; the longitudinal base 22 rises and drives the longitudinal wheel set 2 to rise and engage with the longitudinal guide rail 11 on the back of the unpowered rail flat car 1, thereby driving the unpowered rail flat car 1 to run longitudinally.

[0035] The transverse driving mechanism is composed of a transverse wheel set 4, a transverse driving motor 41 and a transverse lifting mechanism, wherein the transverse lifting mechanism is composed of a transverse lifting motor 51, a transverse transmission shaft 52 and a transverse screw lifting device 53; the transverse wheel set 4 and the transverse driving motor 41 are assembled on the transverse base 42, and the transverse lifting motor 51 and the transverse screw lifting device 53 are assembled between the transverse base 42 and the device base 6, and are used to lift or lower the transverse base 42; the rise of the transverse base 42 drives the transverse wheel set 4 to rise and engage with the transverse guide rail 12 on the back of the unpowered rail flat car 1, thereby driving the unpowered rail flat car 1 to run horizontally.

[0036] Based on the above structure, when the unpowered rail flat car 1 switches from transverse operation to longitudinal operation, the longitudinal screw lifting device 33 lifts the longitudinal base 22, so that the longitudinal wheel group 2 engages with the longitudinal guide rail 11 on the back of the unpowered rail flat car 1, and the transverse screw lifting device 53 lowers the transverse base 42, so that the transverse wheel group 4 is separated from the transverse guide rail 12 on the back of the unpowered rail flat car 1, and the longitudinal drive motor 21 drives the longitudinal wheel group 2 to allow the unpowered rail flat car 1 to run longitudinally; when the unpowered rail flat car 1 switches from longitudinal operation to transverse operation, the transverse screw lifting device 53 lifts the transverse base 42, so that the transverse wheel group 4 engages with the transverse guide rail 12 on the back of the unpowered rail flat car 1, and the longitudinal screw lifting device 33 lowers the longitudinal base 22, so that the longitudinal wheel group 2 is separated from the longitudinal guide rail 11 on the back of the unpowered rail flat car 1, and the transverse drive motor 41 drives the transverse wheel group 4 to allow the unpowered rail flat car 1 to run transversely.

[0037] Based on the jacking and reversing device proposed in the present invention, during the longitudinal and transverse reversal of the unpowered rail flat car 1, one of them rises and the other falls, and they rise first and then fall, so as to realize the switching from longitudinal to transverse or from transverse to longitudinal. During the switching process, the rising screw jacking device does not need to bear the weight of the unpowered rail flat car 1 and the goods transported by it, and the falling screw jacking device does not need to bear the weight of the unpowered rail flat car 1 and the goods transported by it, thereby realizing the technical effect of high efficiency, low energy consumption and low investment. For example, when the unpowered rail flat car 1 needs to switch from longitudinal operation to transverse operation, the transverse screw lifting device 53 raises the transverse base 42 to allow the transverse wheel group 4 to engage with the transverse guide rail 12 on the back of the unpowered rail flat car 1. During this period, the longitudinal wheel group 2, the longitudinal base 22 and the longitudinal screw lifting device 33 support the unpowered rail flat car 1. Therefore, the transverse screw lifting device 53 does not bear the weight of the unpowered rail flat car 1 and the goods it transports during the rising period. When the transverse wheel group 4 engages with the transverse guide rail 12 on the back of the unpowered rail flat car 1, the longitudinal screw lifting device 33 lowers the longitudinal base 22 to allow the longitudinal wheel group 2 to disengage from the longitudinal guide rail 11 on the back of the unpowered rail flat car 1. During this period, the transverse wheel group 4, the transverse base 42 and the transverse screw lifting device 53 support the unpowered rail flat car 1. Therefore, the longitudinal screw lifting device 33 does not bear the weight of the unpowered rail flat car 1 and the goods it transports during the descending period.

[0038] That is, in the present invention, the rising height of the longitudinal base 22 is consistent with the rising height of the transverse base 42, so that the longitudinal wheel set 2 and the transverse wheel set 4 are engaged with the guide rails corresponding to the back of the non-powered rail flat car 1, and are first raised and then lowered, so that any jacking and reversing device (power source) does not need to bear the weight of the non-powered rail flat car 1 and the goods it transports, but only needs to bear the weight of the wheel set, the drive motor and the base. The positive effects brought about are obvious: (1) small power motors can be used instead of high power motors; (2) small size motors can be used instead of large size motors; (3) the operation and transportation efficiency can be improved; (4) the failure rate can be reduced; (5) the floor height of the stereoscopic warehouse can be reduced; (6) the number and weight of steel structures can be greatly reduced; (7) the investment cost can be greatly reduced.

[0039] In the present application, the longitudinal lifting mechanism and the transverse lifting mechanism can be implemented by hydraulic, pneumatic, electric push, screw and other lifting devices. In the embodiment of the present invention, both are implemented by screw lifting devices. As shown in the figure, a longitudinal lifting motor 31 drives multiple longitudinal screw lifting devices 33 through a longitudinal transmission shaft 32; a transverse lifting motor 51 drives multiple transverse screw lifting devices 53 through a transverse transmission shaft 52; and the output end of the longitudinal lifting motor 31 and the output end of the transverse lifting motor 51 have a height difference, and the height difference is at least greater than the diameter of the longitudinal transmission shaft 32 and the transverse transmission shaft 52, so that the longitudinal transmission shaft 32 of the longitudinal lifting motor 31 and the transverse transmission shaft 52 of the transverse lifting motor 51 are perpendicular to each other in the vertical direction, so that the two do not interfere with each other during driving lifting or lowering.

[0040] The lifting and reversing device proposed in the present invention also includes a rectangular device base 6, the longitudinal drive mechanism is assembled at the top and middle of the device base 6 in the length direction, and the transverse drive mechanism is assembled at the top of the device base 6 in the width direction, so that the longitudinal lifting mechanism and the transverse lifting mechanism are independent of each other and do not interfere with each other during the lifting and lowering operation.

[0041] The longitudinal wheel set 2 is fixedly mounted on the longitudinal base 22, and the transverse wheel set 4 is fixedly mounted on the transverse base 42. In order to reduce costs, in the longitudinal wheel set 2 and the transverse wheel set 4, the driving wheels and the driven wheels can be evenly distributed and cross-arranged, and the multiple driving wheels can be connected in the form of synchronous belts, chains, etc. and connected to the output shaft of the driving motor.

[0042] In the embodiments of the present invention, both the longitudinal wheel set 2 and the transverse wheel set 4 are implemented by friction wheel sets. As shown in the figure, the friction wheels are two-wing or single-wing track wheels, and the two wings or single wing are used to define the meshing of the friction wheels with the guide rails 11 / 12 on the back of the unpowered rail car 1. The longitudinal guide rail 11 and the transverse guide rail 12 in a cross-shaped structure are arranged on the back of the unpowered rail car 1. At the intersection of the longitudinal guide rail 11 and the transverse guide rail 12, a passage 131 for the two wings of the transverse friction wheel to pass through is provided, and at the intersection of the transverse guide rail 12 and the longitudinal guide rail 11, a passage 132 for the longitudinal friction wheel to pass through is provided. This structure of providing four-way passages at the intersection of the vertical and horizontal guide rails enables the longitudinal friction wheel to pass through the transverse guide rail without obstruction, and the transverse friction wheel to pass through the longitudinal guide rail without obstruction, ensuring smooth operation and stability during the direction change of the unpowered rail car 1.

[0043] In some scenarios, the longitudinal and transverse guide rails on the back of the unpowered rail car can also form forms such as "日字型 (Japanese character shape)", "目字型 (eye character shape)", and "田字形 (field character shape)".

[0044] The following uses several specific embodiments to give a detailed description of the application of the jacking and direction-changing system proposed above in the present invention.

[0045] As Fig.11 shown in Embodiment 1, a Huarongdao-style three-dimensional parking garage is given, which is also applicable to a logistics three-dimensional warehouse.

[0046] The three-dimensional parking garage includes multiple parking layers. The layout and quantity of parking spaces on each layer are basically the same. Each layer consists of several longitudinal conveyor lines arranged in a matrix structure in parallel. The three-dimensional parking garage is responsible for the entry and exit of vehicles on each layer by a lifting mechanism, and the number of lifting mechanisms can be determined by the scale of the matrix on each layer (that is, the number of stored vehicles) and the requirements for the vehicle access efficiency. At least one matrix vacancy (i.e., an empty parking space) is left on each layer.

[0047] For example, a 4-story multi-story parking garage is built with 56 parking spaces arranged in an 8*7 (X*Y) matrix on each floor. A longitudinal conveyor line formed by 7 lifting and reversing devices is arranged in the Y-axis direction, and 7 more longitudinal conveyor lines are replicated in the X-axis direction to form an 8 longitudinal and 7 transverse cross-matrix conveying network. Two lifting mechanisms are arranged at the 3rd and 6th end points of the X-axis, and 2 matrix spaces are set on each floor (the positions of the spaces are dynamic), such as X3Y1 and X6Y1, forming a typical Huarongdao model. Vehicles at any position can be moved to the X3Y1 or X6Y1 position, that is, the entrance and exit of the lifting mechanism, with the non-powered rail flat car in the shortest distance. For example, to move the vehicle at position X2Y6 to position X3Y1, multiple routes can be selected, such as the vehicles located at X3Y2, X3Y3, X3Y4, X3Y5, and X3Y6 are moved down along the Y axis to position X3Y1 with the unpowered rail flat car; then they are translated along the X axis to position X2Y1; again they are moved up along the Y axis from X2Y1 to position X2Y6; X2Y6 is translated along the X axis to position X3Y6, and then, along the Y axis from X3Y6, X3Y5, X3Y4, X3Y3, X3Y2 to position X3Y1, forming a cycle of X2Y6, X3Y6, X3Y5, X3Y4, X3Y3, X3Y2, X3Y1, X2Y1, X2Y2, X2Y3, X2Y4, X2Y5, and X2Y6.

[0048] In the above cycle, since each conveyor line is equipped with the lifting and reversing device of the present invention, any vehicle on the unpowered rail flat car that needs to be moved out can choose the shortest route to complete the task. In this embodiment, only the lifting and reversing devices of the present invention proposed above on the four matrix power units X3Y1, X2Y1, X2Y6, and X3Y6 implement longitudinal and transverse reversal, and the remaining matrix power units only operate in the Y direction, with simple actions and high efficiency. The lifting mechanism is responsible for the transportation of vehicles in and out of different floors of the stereo garage. The released empty unpowered rail flat cars are transported back to the original garage layer by the lifting mechanism, which will not be described in detail in this embodiment.

[0049] like Fig.12 The second embodiment shown provides an application of a multi-circulation stereoscopic logistics warehouse, which is also applicable to stereoscopic parking lots, etc. The stereoscopic warehouse is composed of multi-layered warehouses. Different from the first embodiment, each layer is composed of a plurality of longitudinal conveying lines arranged to form a matrix network conveying plane, and the lifting and reversing devices of the present invention are arranged only at both ends of the matrix network conveying plane, and only the longitudinal driving wheel sets without lifting mechanisms in the present invention are arranged on the conveying line bodies in between, and the horizontal height of the longitudinal driving wheel sets in between is consistent with the horizontal height of the longitudinal driving wheel sets lifted by the lifting and reversing devices of the transverse conveying lines at both ends, so as to achieve the purpose that any two longitudinal conveying lines can form a closed loop through the transverse conveying lines to implement cyclic movement.

[0050] For example, a 4-story stereoscopic warehouse is constructed, with 56 cargo spaces arranged in an 8*7 (X*Y) pattern on each floor. A longitudinal conveyor line formed by 7 rectangular device bases is arranged in the Y-axis direction, and 7 longitudinal conveyor lines are replicated and arranged in the X-axis direction to form an 8-longitudinal and 7-lateral matrix conveyor line network that crosses each other. The jacking and reversing devices of the present invention are arranged on the first and seventh lateral conveyor lines of the Y-axis, and only the longitudinal driving wheel groups without jacking mechanisms in the present invention are arranged on the second to sixth lateral conveyor lines of the Y-axis. Two lifting mechanisms are arranged at the end points of the third and sixth longitudinal conveyor lines of the X-axis, and their parking position coordinates are X1Y1, X2Y1...X8Y1,... and X1Y2, X1Y3...X1Y7, and the intersection position XNYn of the X-axis and the Y-axis, and 2 empty spaces are set on each floor, such as X3Y1 and X6Y1, and the positions of the empty spaces are dynamic. The goods at any position can be moved to the X3Y1 or X6Y1 position in the shortest distance in a multi-cycle manner, that is, the entrance and exit of the lifting mechanism. For example, if the goods at the X1Y6 position are moved to the X3Y1 position, the goods on the X2Y1 position will be translated along the X axis to the X3Y1 position, the goods on the X1Y1 position will be translated along the X axis to the X2Y1 position, X1Y2, X1Y3, X1Y4, X1Y5, X1Y6, and X1Y7 will be moved down one position along the Y axis in turn, X2Y7 will be translated to X1Y7 to the left along the X axis, X3Y7 will be translated to X2Y7 to the left along the X axis, and X3Y6, X3Y5, X3Y4, X3Y3, X3Y2, and X3Y1 will be moved up one position along the Y axis in turn; repeat the above actions until the goods at the X1Y6 position are cyclically moved to the position of the X3Y1 lifting mechanism entrance and exit.

[0051] The second embodiment shows that in some scenarios, while meeting the shipping efficiency requirements, only the lifting and reversing devices of the present invention are arranged at key nodes, so that the goods can be circulated and moved, which can greatly reduce the cost. For example, the first embodiment requires the arrangement of 56 (7*8) lifting and reversing devices, while the second embodiment only requires the arrangement of 16 (2*8) lifting and reversing devices to enable the goods at any position to be circulated and moved.

[0052] like Fig.13 The third embodiment shown provides an application of a non-letter-shaped three-dimensional container yard, which is also applicable to large-scale cargo logistics three-dimensional warehouses, commodity automobile three-dimensional yards, etc.

[0053] Since containers are large in size and mass, if a box is input or output in a container yard in a path like Huarong Road, it is not only inefficient but also consumes a lot of energy. Especially for cold boxes and heavy boxes, frequent plugging and unplugging and lifting and lowering are troublesome. This embodiment, combined with the jacking reversing device provided by the present invention, can specially lay out a high-efficiency, low-energy-consumption, and low-cost input and output path layout for the container yard.

[0054] The three-dimensional container yard is perpendicular to the dock shoreline, that is, the entire yard is perpendicular to the shore, and the containers themselves are also perpendicular to the shore. The layout of each layer of the three-dimensional container yard is basically the same, and the transportation between layers is also achieved by a large lifting mechanism. Based on the jacking and reversing device of this patent, several different layouts and channel designs can be designed. This embodiment only discusses a non-shaped container yard layout and channel design of a certain unit and a certain layer.

[0055] Specifically, there is a longitudinal channel in the middle of the non-shaped structure, and the two ends of the longitudinal channel are connected to the sea-side lifting mechanism and the land-side lifting mechanism respectively. The longitudinal channel is filled with the lifting and reversing devices proposed by the present invention, which use the length of the container as a power unit. On both sides of the longitudinal channel, corresponding to the lifting and reversing devices, multiple transverse conveying lines with the width of the container as a power unit are arranged. The length of each transverse conveying line is a multiple of the width of the container, and the transverse conveying lines are only arranged with the transverse driving wheel group conveying lines without the lifting mechanism in the present invention. Each section of the transverse conveying line on each side can store multiple containers, such as 3. Assume that a large channel of a certain plane yard of a unit yard in a three-dimensional container yard is arranged with a lifting and reversing device with a length of 20 containers. Similarly, 60 containers are stored on each side of the large channel, and a total of 120 containers on both sides. Take the longitudinal channel as the Y-axis and the horizontal conveyor line of the first row of container storage area on the land side as the X-axis. The intersection of the X-axis and the Y-axis is X=0 and Y=1. The left side of the intersection is X-1, X-2, and X-3, and the right side of the intersection is X1, X2, and X3. The Y-axis is Y1Y2Y3--Yn---Y20 from the land side to the sea side. The coordinates of each container can be clearly determined.

[0056] A jacking and reversing device with a length of 20 containers is arranged on the Y-axis channel. On the X-axis storage areas on both sides of the Y-axis channel, each row corresponds to a transverse driving wheel group with a width of 6 containers without a jacking mechanism, and the horizontal height of the transverse driving wheel group in the X-axis storage area is the same as the horizontal height of the transverse driving wheel group lifted by the jacking and reversing device on the Y-axis channel, with a total of 20 rows. Taking the land side as the reference and the Y-axis as the center, the coordinates of the first row of containers are X1Y1, X2Y1, X3Y1 and X-1Y1, X-2Y1, X-3Y1; the coordinates of the second row of containers are X1Y2, X2Y2, X3Y2 and X-1Y2, X-2Y2, X-3Y2, ...; the coordinates of the nth row of containers are X1Yn, X2Yn, X3Yn and X-1Yn, X-2Yn, X-3Yn; and the coordinates on the Y-axis channel are X0Y1, X0Y2, X0Y3, ... X0Yn.

[0057] Since the longitudinal channel is only used as a channel for container transportation and not for container storage, there is no need to set up empty spaces on this container yard layer, that is, the X-axis of the horizontal conveyor line (excluding the intersection with the Y-axis) can be fully stacked with containers.

[0058] The containers loaded on the land-side collection and distribution trucks are more random than the containers loaded and unloaded on the sea-side ships, so this embodiment only describes the actions of the land-side containers leaving the yard.

[0059] For example, if a customer comes to pick up a container with the number dd stored at the X-3Y3 position, and there are also containers with the number wl and the number zb stored at the X-2Y3 and X-1Y3 positions, first, the container with the number zb is moved horizontally into the X0Y3 position of the passage, the container with the number wl is moved horizontally to the X-1Y3 position, and the container with the number dd is moved horizontally to the X-2Y3 position; the container with the number zb is continuously moved along the Y axis from the X0Y3 position to the sea side by two positions to X0Y5; the container with the number wl is moved horizontally from the X-1Y3 position to the X0Y3 position, and the container with the number dd is moved horizontally from the X-2Y3 position to the X-1Y3 position; the container with the number wl is moved along the Y axis from the X0Y3 position to the sea side by one position to X0Y4; the container with the number dd is moved horizontally from the X-1Y3 position to X0Y3, and then continuously moved along the Y axis to the land side to the X0Y1 position where it docks with the lifting mechanism; the container with the number wl and the container with the number zb return to the X-2Y3 and X-1Y3 positions according to the original route.

[0060] In the process of picking up containers, only the lifting and reversing device of the X0Y3 power unit implements longitudinal and transverse reversal, and the other power units only operate in the Y or X direction, which is simple and efficient. The lifting mechanism is responsible for the transportation of containers in and out of different floors of the three-dimensional yard. The released empty unpowered rail flat cars can return to the original yard layer and return to their nearest position, so I will not go into details.

[0061] It can be seen from the third embodiment that it is relatively difficult to move large-volume and heavy-weight goods such as containers both longitudinally and laterally, so corresponding longitudinal and transverse movement layout lines should be made. The movement line layout of this embodiment is simple, easy to move, highly efficient, can store a large amount of goods and has a low cost. As described in the case, a yard with 120 container slots only needs to be equipped with 20 jacking and reversing devices of the present invention, and the investment cost is greatly reduced.

[0062] The significance of the present invention is analyzed by taking Example 3 as a representative. The traditional jacking and transverse movement needs to lift a 30-ton container, which requires a 130KW motor. The price of a 130KW motor is more than RMB 300,000, and the motor appearance size needs to be 1.5 meters * 1 meter * 1 meter (1.5 cubic meters), and the mass is more than 4.5 tons; the jacking of the present invention only requires two 4KW motors, which is 6% of the traditional motor. The price of two 4KW motors is RMB 16,000, which is 5.3% of the traditional motor. The appearance size of a 4KW motor is only 0.8 meters * 0.45 meters * 0.45 meters (0.162 cubic meters), which is 10.8% of the traditional motor. The mass of two 4KW motors is only 0.972 tons, which is 21.6% of the traditional motor. It can be seen that the significance of the present invention is great. It makes the impossible possible and will definitely subvert the technical fields related to it.

[0063] like Fig.14 The fourth embodiment shown provides an application of a cross-shaped reversing conveyor line, which is usually used in production workshops and logistics conveyor lines.

[0064] Specifically, a longitudinal conveying line body formed by a plurality of rectangular device bases arranged longitudinally and a transverse conveying line body formed by a plurality of rectangular device bases arranged transversely are vertically crossed, and only a lifting and reversing device of the present invention is arranged at the vertical crossing position, while only the longitudinal driving mechanism and the transverse driving mechanism without the lifting mechanism of the present invention are arranged on the longitudinal conveying line body and the transverse conveying line body at other positions, and the horizontal heights of the longitudinal wheel group and the transverse wheel group are the same as the horizontal heights of the longitudinal wheel group and the transverse wheel group lifted by the lifting and reversing device arranged at the vertical crossing position.

[0065] It should be pointed out that the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A lifting and reversing device, used to drive an unpowered rail flat car to move longitudinally and transversely, including a longitudinal driving mechanism for driving the unpowered rail flat car to move longitudinally and a transverse driving mechanism for driving the unpowered rail flat car to move transversely; characterized in that: The longitudinal driving mechanism is composed of a longitudinal wheel set, a longitudinal driving motor and a longitudinal lifting mechanism; wherein the longitudinal wheel set and the longitudinal driving motor are assembled on a longitudinal base; the longitudinal lifting mechanism is fixedly installed between the longitudinal base and the device base; The transverse driving mechanism is composed of a transverse wheel set, a transverse driving motor and a transverse lifting mechanism; wherein the transverse wheel set and the transverse driving motor are assembled on a transverse base; and the transverse lifting mechanism is fixedly installed between the transverse base and the device base; When the non-powered rail flat car switches from transverse operation to longitudinal operation, the longitudinal lifting mechanism lifts the longitudinal base to allow the longitudinal wheel set to engage with the longitudinal guide rail on the back of the non-powered rail flat car, and the transverse lifting mechanism lowers the transverse base to allow the transverse wheel set to separate from the transverse guide rail on the back of the non-powered rail flat car; When the unpowered rail flat car switches from longitudinal operation to transverse operation, the transverse lifting mechanism lifts the transverse base to allow the transverse wheel set to engage with the transverse guide rail on the back of the unpowered rail flat car, and the longitudinal lifting mechanism lowers the longitudinal base to allow the longitudinal wheel set to separate from the longitudinal guide rail on the back of the unpowered rail flat car.

2. The lifting and reversing device according to claim 1, characterized in that: The longitudinal lifting mechanism uses a screw lifting device, and a longitudinal lifting motor drives multiple longitudinal screw lifting devices through a longitudinal transmission shaft; The lateral lifting mechanism uses a screw lifting device, and a lateral lifting motor drives multiple lateral screw lifting devices through a lateral transmission shaft; and, The longitudinal transmission shaft of the longitudinal lifting motor and the transverse transmission shaft of the transverse lifting motor are perpendicular to each other in the vertical direction.

3. The lifting and reversing device according to claim 2, characterized in that: An output end of the longitudinal lifting motor and an output end of the transverse lifting motor have a height difference, and the height difference is at least greater than the diameter of the transmission shaft.

4. The lifting and reversing device according to claim 1, characterized in that: The longitudinal wheel set and the transverse wheel set are both friction wheel sets; the friction wheel is a double-wing wheel or a single-wing wheel, and the double wings or the single wing are used to limit the mutual engagement between the friction wheel and the guide rail on the back of the unpowered rail flat car.

5. The lifting and reversing device according to claim 4, characterized in that: A channel for the passage of the transverse friction wheel wing is opened at the intersection of the longitudinal guide rail and the transverse guide rail arranged at the bottom of the unpowered rail flat car; a channel for the passage of the longitudinal friction wheel wing is opened at the intersection of the transverse guide rail and the longitudinal guide rail arranged at the bottom of the unpowered rail flat car.

6. A lifting and reversing system, used in a stereoscopic warehouse, characterized in that: The three-dimensional warehouse is composed of several loading layers, each loading layer is composed of multiple longitudinal conveying lines, and each longitudinal conveying line is composed of multiple rectangular device bases arranged longitudinally; On a longitudinal conveying line body formed by longitudinally arranging a plurality of rectangular device bases, a lifting and reversing device as claimed in any one of claims 1 to 5 is arranged on each device base.

7. A lifting and reversing system, used in a stereoscopic warehouse, characterized in that: The three-dimensional warehouse is composed of several loading layers, each loading layer is composed of multiple longitudinal conveying lines, and each longitudinal conveying line is composed of multiple rectangular device bases arranged longitudinally; A plurality of longitudinal conveying lines of equal length are arranged side by side to form a matrix structure, and transverse conveying lines are arranged at opposite ends of the matrix structure, and the transverse conveying lines are formed by jacking and reversing devices of a plurality of rectangular device bases arranged transversely; The lifting and reversing device is the lifting and reversing device as described in any one of claims 1 to 5; only the longitudinal wheel group and the longitudinal drive motor of the lifting and reversing device are fixed on the longitudinal conveying line body, and the horizontal height of the longitudinal wheel group is consistent with the horizontal height of the longitudinal wheel group after the lifting and reversing device is lifted, thereby any two longitudinal conveying line bodies form a closed loop through the lifting and reversing devices on the transverse conveying line bodies at both ends.

8. A lifting and reversing system, used in a stereoscopic warehouse, characterized in that: The three-dimensional warehouse is composed of several loading layers, and a longitudinal cargo conveying channel is arranged in the middle of each loading layer, and the longitudinal cargo conveying channel is formed by a plurality of lifting and reversing devices of rectangular device bases; The lifting and reversing device is a lifting and reversing device as claimed in any one of claims 1 to 5; A cargo storage area is formed by a transverse conveying line with several rectangular device bases arranged on both sides of the longitudinal cargo conveying channel; only the transverse wheel group and the transverse driving motor of the jacking and reversing device are fixed on the rectangular device base of the transverse conveying line, and the horizontal height of the transverse wheel group is consistent with the horizontal height of the transverse wheel group after the jacking and reversing device on the longitudinal cargo conveying channel is lifted.

9. A lifting and reversing system, used for transporting goods on a cross-shaped reversing conveyor line, characterized in that: The cross-shaped conveyor line is composed of a longitudinal conveyor line body and a transverse conveyor line body that cross each other perpendicularly; The longitudinal conveying line body is formed by a plurality of rectangular device bases arranged longitudinally, and the transverse conveying line body is formed by a plurality of rectangular device bases arranged transversely; A lifting and reversing device as described in any one of claims 1 to 5 is arranged at the intersection of the longitudinal conveying line body and the transverse conveying line body; and only the longitudinal wheel group and the longitudinal driving motor of the lifting and reversing device are arranged on the rectangular device base of the longitudinal conveying line body outside the intersection position, and only the transverse wheel group and the transverse driving motor of the lifting and reversing device are arranged on the rectangular device base of the transverse conveying line body outside the intersection position, and the horizontal heights of the longitudinal wheel group and the transverse wheel group are the same as the horizontal heights of the longitudinal wheel group and the transverse wheel group lifted by the lifting and reversing device arranged at the vertical intersection position.

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