Track changing device for shuttle vehicle

Abstract

The present invention relates to an automated warehouse, in particular to a track-changing device for a shuttle vehicle, comprising a track-changing base plate, a fixed guide rail, the fixed guide rail being mounted on both sides of the bottom of the track-changing base plate; a movable guide rail, the movable guide rail being slidably mounted on both sides of the bottom of the track-changing base plate, and both being located at one end of the fixed guide rail; a positioning device, the positioning device being fixed at one end of the movable guide rail, the positioning device being used to control the position of the extended movable guide rail; and a track-changing drive device, the track-changing drive device being mounted on both sides of the track-changing base plate, the track-changing drive device being respectively connected to the movable guide rail, and the track-changing drive device being used to drive the movable guide rail to extend and retract. The track-changing device for a shuttle vehicle provided by the present invention effectively solves the gap generated when the shuttle vehicle is docked with the guide rails, making the shuttle vehicle track-changing stable and reliable.

Description

Technical Field

[0001] The invention relates to an automated warehouse, in particular to a track changing device for a shuttle vehicle. Background Art

[0002] Driven by a number of external factors in recent years, such as the rising land and labor costs in my country, the rapid development of e-commerce, and the transformation and upgrading of the manufacturing industry, there is a strong market demand for warehouse automation technology equipment and intensive storage systems. Against this background, some new automated warehousing technologies and application methods continue to emerge. In the field of intensive storage, technologies such as shuttle rack systems and multi-depth automated warehouses have developed rapidly in recent years, which also reflects from one aspect that the market demand for automated warehousing technology is constantly upgrading.

[0003] Dense storage mainly refers to the pallet shelf storage system with shuttles as the core. The emergence of this technology is a manifestation of the efforts of logistics equipment companies to pursue technological innovation. The dense storage system represented by shuttles has a relatively single application scenario, or is suitable for certain specific scenarios, such as the food and beverage industry, whose logistics operations are characterized by large quantities and few varieties.

[0004] In order to meet the requirements of dense storage, the shuttle needs to be able to reverse direction, that is, it can travel in both the X direction and the Y direction. A double-layer shuttle is used. The upper shuttle moves back and forth in one direction. The bottom of the upper shuttle is equipped with a guide rail, which facilitates the entry of the lower shuttle. The lower shuttle moves in a direction perpendicular to the previous shuttle. The existing guide rail is prone to failure when the lower shuttle changes direction, because there will be a large gap between the docking guide rail and the fixed guide rail, and the gap will cause the roller of the shuttle to get stuck in the gap, resulting in the lower shuttle being unable to change tracks normally. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a track changing device for a shuttle vehicle, which realizes seamless docking when changing tracks by adding a movable guide rail, and effectively ensures the normal track changing of the shuttle vehicle. The specific technical solution is as follows:

[0006] The track-changing device for a shuttle vehicle comprises a track-changing base plate, a fixed guide rail, which is installed on both sides of the bottom of the track-changing base plate; a movable guide rail, which is slidably installed on both sides of the bottom of the track-changing base plate and is located at one end of the fixed guide rail; a positioning device, which is fixed at one end of the movable guide rail and is used to control the extended position of the movable guide rail; and a track-changing drive device, which is installed on both sides of the track-changing base plate, is connected to the movable guide rails respectively, and is used to drive the movable guide rail to extend and retract.

[0007] By adopting the above technical solution, the movable guide rail can be extended, and the movable guide rail is docked with the docking guide rail to achieve seamless docking between the guide rails. The rollers of the shuttle car can change tracks normally, effectively ensuring the reliability of track changing.

[0008] The positioning device controls the extended position of the movable guide rail, thereby ensuring that the movable guide rail and the docking guide rail are seamlessly docked.

[0009] Two track-changing drive devices are provided, each driving the movable guide rail, so as to prevent the end faces of the two docking guide rails from being not in the same plane, resulting in one of the movable guide rails being unable to achieve seamless docking with the docking guide rail.

[0010] Preferably, a linear guide pair is installed between the movable guide rail and the track-changing base plate, the movable guide rail is fixed on the track-changing slider, the track-changing linear guide rail is fixed on the track-changing base plate, and the track-changing slider is slidably installed on the track-changing linear guide rail.

[0011] By adopting the above technical solution, the linear guide pair has a strong load-bearing capacity, ensuring the stability of the extension and retraction of the movable guide.

[0012] Preferably, it also includes fixed side panels, which are installed on both sides of the track changing base plate and are perpendicular to the track changing base plate, the track changing linear guide rails are installed on the fixed side panels, and the fixed guide rails are installed on the fixed side panels; and a track changing connecting plate, one end of which is fixed on the track changing slider, and the other end is fixed on the side of the movable guide rail.

[0013] By adopting the above technical solution, the track-changing connecting plate facilitates the extension of the movable guide rail and avoids interference between the linear guide rail and the docking guide rail.

[0014] Since both the movable guide rail and the fixed guide rail are C-shaped guide rails, the track-changing connecting plate is arranged on the side of the movable guide rail to obtain the best strength, reduce the deformation of the movable guide rail due to force during track changing, and ensure the reliability of track changing.

[0015] Preferably, an insertion groove is provided at one end of the fixed guide rail, and the insertion groove is located on the side and bottom of the fixed guide rail; an insertion block is provided at the end of the movable guide rail opposite to the fixed guide rail, and the insertion block is arranged opposite to the insertion groove, and the insertion block is movably inserted in the insertion groove.

[0016] By adopting the above technical solution, when the movable rail is extended, a gap will be generated between the movable rail and the fixed rail, and the gap is filled by the insertion block, so that the roller of the shuttle car can enter the fixed rail and prevent the roller from being stuck between the movable rail and the fixed rail. The insertion groove is used to store the insertion block when the movable rail is retracted.

[0017] Preferably, it further comprises a relay board, a busbar is installed at the bottom of the relay board, one end of the relay board is connected to the movable guide rail, and the other end of the relay board is slidably connected to the fixed guide rail.

[0018] By adopting the above technical solution, the relay board is used to obtain power after the shuttle car changes tracks.

[0019] Preferably, the positioning device comprises a proximity switch or a travel switch, and the proximity switch or the travel switch is fixed at one end of the movable guide rail.

[0020] Preferably, the track-changing drive device comprises an electric cylinder, which is fixed on the top of the track-changing bottom plate; and a track-changing drive plate, which is respectively connected to the electric cylinder and the movable guide rail.

[0021] By adopting the above technical solution, the electric cylinder is easy to use and precisely controlled.

[0022] Preferably, it further comprises a limit block, which is installed at the other end of the fixed guide rail and is located inside the fixed guide rail.

[0023] By adopting the above technical solution, the limit block prevents the shuttle from sliding out of the fixed guide rail.

[0024] Preferably, it further comprises a limiting device, wherein the limiting device comprises a limiting seat, the limiting seat is fixed on the movable guide rail, and a lifting hole is provided on the limiting seat;

[0025] A limiting shaft, the limiting shaft is movably inserted in the lifting hole, and one end of the limiting shaft is movably inserted in the interior of the movable guide rail; a lifting plate, the lifting plate is fixed to the other end of the limiting shaft; a tension spring, one end of the tension spring is fixed to the lifting plate, and the other end of the tension spring is fixed to the limiting seat; a driving rod, the driving rod is hinged at one end of the limiting seat, and one end of the driving rod is movably pressed on the lifting plate; and a docking block, the docking block is fixed to one end of the docking guide rail, and the docking block is located at the other end of the driving rod, and the docking block is used to pull the limiting shaft out of the interior of the movable guide rail through the driving rod.

[0026] By adopting the above technical solution, when the docking guide rail is docked with the movable guide rail, the docking block pushes one end of the driving rod, the driving rod is a lever, and the other end of the driving rod pushes the lifting plate to rise, and the lifting plate drives the limit shaft to leave the interior of the movable guide rail, making it convenient for the roller to enter the movable guide rail; when the movable guide rail retracts, the docking block leaves the driving rod, and the lifting plate descends under the action of the tension spring, and the lifting plate drives the limit shaft to be reinserted into the interior of the movable guide rail, and the limit shaft can limit the movable guide rail of the shuttle pulley.

[0027] Preferably, it further comprises a driving wheel, wherein the driving wheel is rotatably mounted on the other end of the driving rod, and the driving rod is symmetrically arranged on both sides of the driving wheel.

[0028] By adopting the above technical solution, the driving wheel can rotate freely, avoiding sliding friction between the driving rod and the docking block, and improving the reliability of operation.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] The shuttle track changing device provided by the present invention effectively solves the gap generated when the shuttle is docked with the guide rails, so that the shuttle track changing is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the docking of the movable guide rail and the docking guide rail;

[0032] Figure 2 yes Figure 1 A schematic diagram of the local enlarged structure at position I in the middle;

[0033] Figure 3 is hidden Figure 1 A schematic diagram of the structure from another perspective behind the middle box;

[0034] Figure 4 is hidden Figure 1 Schematic diagram of the structure after the middle docking guide rail and the upper part structure;

[0035] Figure 5 is a top view of the track change drive device;

[0036] Figure 6 It is an axonometric structural schematic diagram of the track change drive device;

[0037] Figure 7 yes Figure 6 Schematic diagram of the structure after hiding some parts;

[0038] Figure 8 It is a structural schematic diagram of the movable guide rail;

[0039] Fig. 9 It is a structural schematic diagram of a fixed guide rail;

[0040] Fig.10 It is a front view of the limit device;

[0041] Fig.11 is along Fig.10 Sectional view along line AA;

[0042] Fig.12 It is a schematic diagram of the axonometric structure of the limit device. DETAILED DESCRIPTION

[0043] The present invention will be further described with reference to the accompanying drawings.

[0044] Embodiment 1

[0045] like Figures 1 to 9 As shown, the track-changing device for the shuttle vehicle includes a track-changing base plate 21, a fixed guide rail 22, which is installed on both sides of the bottom of the track-changing base plate 21; a movable guide rail 23, which is slidably installed on both sides of the bottom of the track-changing base plate 21 and is located at one end of the fixed guide rail 22; a positioning device, which is fixed at one end of the movable guide rail 23, and is used to control the extended position of the movable guide rail 23; and a track-changing drive device, which is installed on both sides of the track-changing base plate 21, and the track-changing drive devices are respectively connected to the movable guide rails 23, and are used to drive the movable guide rails 23 to extend and retract.

[0046] The movable guide rail 23 can be extended, and the movable guide rail 23 is docked with the docking guide rail 14 to achieve seamless docking between the guide rails. The rollers of the shuttle vehicle can change tracks normally, effectively ensuring the reliability of the track change.

[0047] The positioning device controls the extended position of the movable guide rail 23 , thereby ensuring that the movable guide rail 23 and the docking guide rail 14 are seamlessly docked.

[0048] There are two track change driving devices, which drive the movable guide rails 23 respectively, so as to prevent the end surfaces of the two docking guide rails 14 from not being in the same plane, resulting in one of the movable guide rails 23 and the docking guide rail 14 not being able to achieve seamless docking.

[0049] Among them, a roller is installed on the top of the track-changing bottom plate 21, and the roller is located in the upper guide rail 11. The upper shuttle vehicle can move along the upper guide rail 11, and the roller is connected to the track-changing bottom plate 21 through a connecting seat 13.

[0050] The fixed guide rail 22, the movable guide rail 23 and the docking guide rail 14 have the same cross-section, and are all C-shaped guide rails.

[0051] An insertion slot 221 is provided at one end of the fixed guide rail 22, and the insertion slot 221 is located on the side and bottom of the fixed guide rail 22; an insertion block 231 is provided at the end of the movable guide rail 23 opposite to the fixed guide rail 22, and the insertion block 231 is arranged opposite to the insertion slot 221, and the insertion block 231 is movably inserted into the insertion slot 221. When the movable guide rail 23 is extended, a gap will be generated between the movable guide rail 23 and the fixed guide rail 22, and the gap is filled by the insertion block 231, so that the roller of the shuttle car can enter the fixed guide rail 22 conveniently, and the roller is prevented from being stuck between the movable guide rail 23 and the fixed guide rail 22. The insertion slot 221 is used to store the insertion block 231 when the movable guide rail 23 is retracted.

[0052] A reinforcing connecting plate 24 is provided at one end of the fixed guide rail 22, and the reinforcing connecting plate 24 is located at the bottom of the fixed guide rail 22 and the movable guide rail 23. The movable guide rail 23 slides on the reinforcing connecting plate 24. The reinforcing connecting plate 24 is used to increase the strength of the movable guide rail 23. When the movable guide rail 23 is extended, it can support the movable guide rail 23 from the bottom of the movable guide rail 23 to reduce the deformation of the movable guide rail 23 and facilitate the rollers of the shuttle vehicle to smoothly enter the fixed guide rail 22. Even if there is a gap between the movable guide rail 23 and the fixed guide rail 22, the reinforcing connecting plate 24 can limit the position where the rollers descend, avoiding the rollers from being stuck deeply between the movable guide rail 23 and the fixed guide rail 22, so that the rollers only need to overcome the plate thickness of the fixed guide rail 22, thereby improving the reliability of track changing.

[0053] It also includes a fixed side plate 25, which is installed on both sides of the track changing base plate 21 and is perpendicular to the track changing base plate 21, the track changing linear guide 36 is installed on the fixed side plate 25, and the fixed guide rail 22 is installed on the fixed side plate 25; a track changing connecting plate 34, one end of the track changing connecting plate 34 is fixed on the track changing slider 35, and the other end is fixed on the side of the movable guide rail 23, the track changing connection is connected to the electric cylinder 31, and the track changing slider 35 is slidably installed on the track changing linear guide 36.

[0054] A plurality of reinforcing blocks are installed between the fixed side plate 25 and the track changing bottom plate 21, and the reinforcing blocks are also connected to the side of the fixed guide rail 22. The reinforcing blocks realize the connection between the fixed guide rail 22 and the track changing bottom plate 21, and leave installation space for the linear guide pair used for track changing.

[0055] The track-changing connecting plate 34 facilitates the extension of the movable guide rail 23 and avoids interference between the track-changing linear guide rail 36 and the docking guide rail 14 .

[0056] Since both the movable guide rail 23 and the fixed guide rail 22 are C-shaped guide rails, the track-changing connecting plate 34 is arranged on the side of the movable guide rail 23 to obtain the best strength, reduce the deformation of the movable guide rail 23 caused by force during track changing, and ensure the reliability of track changing. The linear guide pair has a strong load-bearing capacity, which ensures the stability of the movable guide rail 23 in telescopic movement.

[0057] It also includes a relay board 41 , a sliding contact line 42 is installed at the bottom of the relay board 41 , one end of the relay board 41 is connected to the movable guide rail 23 , and the other end of the relay board 41 is slidably connected to the fixed guide rail 22 .

[0058] The relay board 41 is used to obtain power after the shuttle car changes tracks.

[0059] The track-changing driving device comprises an electric cylinder 31 , which is fixed on the top of the track-changing bottom plate 21 ; and a track-changing driving plate 33 , which is connected to the electric cylinder 31 and the movable guide rail 23 , respectively.

[0060] The electric cylinder 31 is easy to use and has precise control. A reset proximity switch 32 is mounted on one side of the electric cylinder 31. The reset proximity switch 32 is used for position control when the electric cylinder 31 is retracted to ensure that the movable guide rail 23 is retracted to a set position.

[0061] The positioning device includes a proximity switch 51 or a travel switch, which is fixed to one end of the movable guide rail 23. When the proximity switch 51 detects the docking guide rail 14, it means that the docking guide rail 14 and the movable guide rail 23 have been docked, and a stop signal is issued, and the electric cylinder 31 stops.

[0062] Embodiment 2

[0063] Based on the above embodiments, Figure 3 As shown, a limit block 71 is also included, which is installed at the other end of the fixed guide rail 22 and is located inside the fixed guide rail 22. The limit block 71 prevents the shuttle from sliding out of the fixed guide rail 22.

[0064] like Figures 10 to 12 As shown, the limit device also includes a limit seat 62, which is fixed to the top of the movable guide rail 23, and a lifting hole is provided on the limit seat 62, which is communicated with the through hole at the top of the movable guide rail 23; a limit shaft 63, the limit shaft 63 is movably inserted in the lifting hole, and one end of the limit shaft 63 is movably inserted in the inside of the movable guide rail 23; a lifting plate 62, the lifting plate 62 is fixed to the other end of the limit shaft 63; a tension spring 66, one end of the tension spring 66 is fixed to the lifting plate 62, and the other end of the tension spring 66 is fixed to the limit The driving rod 64 is hinged at one end of the limiting seat 62 and is symmetrically arranged, and one end of the driving rod 64 is movably pressed on the lifting plate 62; the driving wheel 65, the driving wheel 65 is rotatably mounted on the other end of the driving rod 64, and the driving rod 64 is symmetrically arranged on both sides of the driving wheel 65; and the docking block 67, the docking block 67 is fixed at one end of the docking guide rail 14, and the docking block 67 is located at the other end of the driving rod 64, and the docking block 67 is used to pull the limiting shaft 63 out of the interior of the movable guide rail 23 through the driving rod 64.

[0065] When the docking guide rail 14 is docked with the movable guide rail 23, the docking block 67 pushes the driving wheel 65, and the driving wheel 65 pushes one end of the driving rod 64, which is a lever. The other end of the driving rod 64 pushes the lifting plate 62 to rise, and the lifting plate 62 drives the limiting shaft 63 to leave the inside of the movable guide rail 23, so that the roller can enter the movable guide rail 23. When the movable guide rail 23 retracts, the docking block 67 leaves the driving wheel 65, and the lifting plate 62 descends under the action of the tension spring 66. The lifting plate 62 drives the limiting shaft 63 to be reinserted into the inside of the movable guide rail 23, and the limiting shaft 63 can limit the shuttle pulley movable guide rail 23. The driving wheel 65 can rotate freely, which improves the reliability of operation.

[0066] The limit block 71 and the limit shaft 63 limit the shuttle from both ends to prevent the shuttle from sliding on the fixed guide rail 22 and the movable guide rail 23, thereby ensuring the reliability of operation.

Claims

1. A track changing device for a shuttle vehicle, characterized in that: include Rail replacement base plate, Fixed guide rails, which are installed on both sides of the bottom of the track-changing bottom plate; Movable guide rails, which are slidably mounted on both sides of the bottom of the track-changing bottom plate and are both located at one end of the fixed guide rail; A positioning device, the positioning device is fixed to one end of the movable guide rail, and the positioning device is used to control the position where the movable guide rail extends; and A track-changing drive device, which is installed on both sides of the track-changing bottom plate, is connected to the movable guide rails respectively, and is used to drive the movable guide rails to extend and retract; A linear guide pair is installed between the movable guide rail and the track-changing bottom plate, the movable guide rail is fixed on the track-changing slider, the track-changing linear guide rail is fixed on the track-changing bottom plate, and the track-changing slider is slidably installed on the track-changing linear guide rail; Also includes a limiting device, the limiting device includes A limit seat, the limit seat is fixed on the movable guide rail, and a lifting hole is provided on the limit seat; A limiting shaft, wherein the limiting shaft is movably inserted into the lifting hole, and one end of the limiting shaft is movably inserted into the interior of the movable guide rail; A lifting plate, wherein the lifting plate is fixed to the other end of the limiting shaft; A tension spring, one end of which is fixed on the lifting plate, and the other end of which is fixed on the limit seat; A driving rod, wherein the driving rod is hinged to one end of the limiting seat, and one end of the driving rod is movably pressed on the lifting plate; and A docking block is fixed at one end of the docking guide rail, and the docking block is located at the other end of the driving rod, and the docking block is used to pull the limit shaft out of the interior of the movable guide rail through the driving rod.

2. The shuttle track changing device according to claim 1, characterized in that: Also includes Fixed side plates, the fixed side plates are mounted on both sides of the track-changing bottom plate and are perpendicular to the track-changing bottom plate, the track-changing linear guide rails are mounted on the fixed side plates, and the fixed guide rails are mounted on the fixed side plates; and A track-changing connecting plate, one end of which is fixed on the track-changing sliding block, and the other end of which is fixed on the side of the movable guide rail.

3. The shuttle track changing device according to claim 2, characterized in that: An insertion slot is provided at one end of the fixed guide rail, and the insertion slot is located on the side surface and the bottom surface of the fixed guide rail; An insertion block is arranged at one end of the movable guide rail opposite to the fixed guide rail. The insertion block is arranged opposite to the insertion slot and is movably inserted into the insertion slot.

4. The shuttle track changing device according to claim 2, characterized in that: It also includes a relay board, the bottom of which is provided with a sliding contact line, one end of the relay board is connected to the movable guide rail, and the other end of the relay board is slidably connected to the fixed guide rail.

5. The shuttle track changing device according to claim 1, characterized in that: The positioning device comprises a proximity switch or a travel switch, and the proximity switch or the travel switch is fixed at one end of the movable guide rail.

6. The shuttle track changing device according to claim 1, characterized in that: The track-changing driving device comprises An electric cylinder, wherein the electric cylinder is fixed on the top of the track-changing bottom plate; and A track-changing drive plate is connected to the electric cylinder and the movable guide rail respectively.

7. The shuttle track changing device according to claim 1, characterized in that: It also includes a limit block, which is installed at the other end of the fixed guide rail and is located inside the fixed guide rail.

8. The shuttle track changing device according to claim 1, characterized in that: It also includes a driving wheel, which is rotatably mounted on the other end of the driving rod, and the driving rod is symmetrically arranged on both sides of the driving wheel.

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