A layer changing lifting device for a four-way shuttle vehicle

Abstract

The application discloses a layer-changing lifting device for a four-way shuttle vehicle, which comprises a supporting frame and a lifting frame, two supporting rails are fixedly arranged on the lifting frame, and compensation rails are arranged at the two ends of the two supporting rails; the two ends of the compensation rails are respectively matched with the supporting rails and the running track of the shuttle vehicle; fixed pipes corresponding to the compensation rails are fixedly arranged on the lifting frame, the fixed pipes are slidably and rotatably connected with the compensation rails, protruding blocks are fixedly arranged on the compensation rails, the fixed pipes are provided with guide grooves, and the protruding blocks are slidably arranged in the guide grooves; the guide grooves comprise horizontal parts and vertical parts; when the shuttle vehicle enters or exits the lifting frame, the compensation rails are opened, the two ends of the compensation rails are respectively matched with the supporting rails and the running track of the shuttle vehicle, the shuttle vehicle stably enters or exits the lifting frame, when the lifting frame is lifted, the compensation rails are retracted, the collision between the compensation rails and the components on the supporting frame is avoided, and the safety of the lifting frame during lifting is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of logistics warehousing transportation, in particular to a layer-changing lifting device for a four-way shuttle vehicle. BACKGROUND

[0002] The four-way shuttle vehicle lift, as a layer-changing device for the shuttle vehicle, plays a key role in the intelligent warehousing system. It can realize the vertical transfer of the four-way shuttle vehicle between different shelf layers, thereby breaking the single plane operation limit and allowing the warehousing space to be used more three-dimensionally and efficiently.

[0003] Generally, it includes a frame and a lifting platform. However, in actual use, when the shuttle vehicle drives onto the lifting platform or drives off the platform, due to the structure of the frame, there is a certain distance between the track on the lifting platform and the driving track of the shuttle vehicle. In the prior art, a cross beam is arranged at each layer position of the frame, and a short compensation track is installed on the cross beam, with one end aligned with the driving track of the shuttle vehicle and the other end aligned with the track on the lifting platform, to ensure the smooth driving of the shuttle vehicle.

[0004] However, by the above-mentioned way, multiple cross beams need to be arranged on the frame, and corresponding short tracks need to be arranged on the cross beams. This will result in the need to install the cross beams at positions corresponding to the driving tracks of each layer during the construction arrangement of the frame, which limits the overall structure of the frame, thereby affecting the overall structure of the frame. In addition, short tracks need to be arranged on multiple cross beams, which makes the installation and construction of the frame very cumbersome, and the multiple short tracks arranged are not convenient for maintenance. SUMMARY

[0005] The purpose of the present application is to provide a layer-changing lifting device for a four-way shuttle vehicle to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] A layer-changing lifting device for a four-way shuttle vehicle, comprising a support frame and a lifting frame, two support rails are fixedly arranged on the lifting frame, and a compensation track is arranged at both ends of each support rail, with one end of the compensation track adapted to the support rail and the other end adapted to the driving track of the shuttle vehicle;

[0008] A fixed tube corresponding to the compensation track is fixedly arranged on the lifting frame, the fixed tube is slidingly and rotatably connected with the compensation track, a protrusion is fixedly arranged on the compensation track, the fixed tube is provided with a guide groove, and the protrusion is slidingly arranged in the guide groove;

[0009] The guide groove comprises a horizontal part and a vertical part;

[0010] The limiting assembly is arranged to limit the shuttle vehicle during the lifting of the lifting frame, and the limiting of the limiting assembly to the shuttle vehicle is passively released when the compensation rail on one side of the lifting frame is opened.

[0011] Preferably, the limiting assembly comprises a limiting rod slidingly arranged on the support rail, and the limiting rod is provided with inclined surfaces at both ends, which are matched with the wheels of the shuttle vehicle.

[0012] Preferably, a plurality of first springs are arranged between the limiting rod and the support rail, and both ends of each first spring are fixedly connected with the limiting rod and the support rail.

[0013] Preferably, a sliding rod is fixedly arranged on the support rail, a plurality of abutting blocks are fixedly arranged on the sliding rod, a plurality of U-shaped grooves are arranged on the limiting rod, the plurality of abutting blocks and the plurality of U-shaped grooves are one-to-one corresponding, the abutting blocks are slidingly arranged in the U-shaped grooves, and the abutting blocks are abuttingly matched with the middle positions of the U-shaped grooves.

[0014] Preferably, a plurality of second springs are arranged between the sliding rod and the support rail, and both ends of each second spring are fixedly connected with the sliding rod and the support rail.

[0015] Preferably, the two ends of the sliding rod are provided with inclined surfaces, and the sliding rod is abuttingly matched with the compensation rail through the inclined surfaces.

[0016] Preferably, a screw rod is rotatably arranged on the lifting frame, and the screw rod is threadedly connected with the compensation rail.

[0017] Preferably, a second pulley is fixedly arranged on the screw rod, a second motor is fixedly arranged on the lifting frame, a first pulley is fixedly arranged on the output shaft of the second motor, and a belt is transmissionally arranged between the two second pulleys and the first pulley on the same side.

[0018] Preferably, a rack is fixedly arranged on the support frame, a first motor is fixedly arranged on the lifting frame, a gear is fixedly arranged on the output shaft of the first motor, and the gear is meshingly transmissionally arranged with the rack.

[0019] A guide wheel is rotatably arranged on the lifting frame, and the guide wheel is abuttingly matched with the support frame.

[0020] The rack, the first motor, the gear and the guide wheel are provided with four groups.

[0021] Preferably, a sprocket set is arranged on the support frame, a counterweight module is slidingly arranged on the support frame, four chains are fixedly arranged between the counterweight module and the lifting frame, and both ends of each chain are fixedly connected with the lifting frame and the counterweight module and pass through the sprocket set.

[0022] In the above technical solution, the four-way shuttle vehicle layer changing and lifting device provided by the application has the following beneficial effects:

[0023] By setting the compensating rail which can rotate and lift on the lifting frame, when the shuttle vehicle enters or exits the lifting frame, the compensating rail is opened, the two ends of the compensating rail are respectively matched with the support rail and the running track of the shuttle vehicle, so that the shuttle vehicle stably enters or exits the lifting frame, when the lifting frame is lifted, the compensating rail is retracted, so as to avoid the collision phenomenon between the compensating rail and the components on the support frame, and ensure the safety of the lifting frame during lifting.

[0024] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory, rather than limiting the present disclosure.

[0025] The present application file provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0027] Figure 1 The support frame overall structure schematic diagram provided by the embodiment of the present application;

[0028] Figure 2 The support frame top structure schematic diagram provided by the embodiment of the present application;

[0029] Figure 3 The lifting frame structure schematic diagram provided by the embodiment of the present application;

[0030] Figure 4 The state structure schematic diagram of the compensating rail when it is retracted provided by the embodiment of the present application;

[0031] Figure 5 The support rail side view sectional view provided by the embodiment of the present application;

[0032] Figure 6 The support rail, limiting rod and sliding rod structure schematic diagram provided by the embodiment of the present application;

[0033] Figure 7 The fixed tube and compensating rail structure schematic diagram provided by the embodiment of the present application;

[0034] Figure 8 The fixed tube side view sectional view provided by the embodiment of the present application;

[0035] Figure 9 The fixed tube internal structure schematic diagram provided by the embodiment of the present application is shown.

[0036] Mark explanation:

[0037] 1, support frame; 11, rack; 12, sprocket set; 13, counterweight module; 14, chain; 2, lifting frame; 21, first motor; 22, gear; 23, guide wheel; 24, second motor; 25, first pulley; 3, support rail; 31, limit rod; 32, first spring; 33, U-shaped groove; 4, sliding rod; 41, abutting block; 42, second spring; 5, fixed tube; 51, transverse part; 52, vertical part; 6, compensation rail; 61, protruding block; 7, screw; 71, second pulley; 72, belt. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical scheme and advantages of the embodiments of the present disclosure clearer, the technical scheme of the embodiments of the present disclosure will be described clearly and completely below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the protection scope of the present disclosure.

[0039] Please refer to 1-9, a four-way shuttle car with layer changing lifting equipment, including support frame 1 and lifting frame 2, lifting frame 2 is fixedly provided with two support rails 3, both ends of the two support rails 3 are provided with compensation rails 6, both ends of the compensation rails 6 are respectively matched with the support rails 3 and the running track of the shuttle car; the lifting frame 2 is fixedly provided with a fixed pipe 5 corresponding to the compensation rail 6, the fixed pipe 5 is slidably and rotatably connected with the compensation rail 6, the compensation rail 6 is fixedly provided with a protruding block 61, the fixed pipe 5 is provided with a guide groove, the protruding block 61 is slidably arranged in the guide groove; the guide groove comprises a horizontal part 51 and a vertical part 52; further comprising a limiting assembly, the limiting assembly limits the shuttle car during the lifting of the lifting frame 2, the limiting assembly passively releases the limiting of the shuttle car when the compensation rail 6 on one side of the lifting frame 2 is opened, the compensation rail 6 is parallel to the long side of the lifting frame 2 during the lifting of the lifting frame 2, the protruding block 61 is located at one end of the horizontal part 51, the compensation rail 6 is in a retracted state, the occupied space is reduced, and collision with the support frame 1 and the components on the support frame 1 during the lifting of the lifting frame 2 is avoided, before the shuttle car enters or exits the lifting frame 2, the compensation rail 6 is rotated to be perpendicular to the long side of the lifting frame 2, during this process, the protruding block 61 moves from one end of the horizontal part 51 to the connection between the horizontal part 51 and the vertical part 52, then the compensation rail 6 moves upward, so that both ends of the compensation rail 6 are respectively aligned with the support rails 3 and the running track of the shuttle car, to allow the shuttle car to pass through, during the upward movement of the compensation rail 6, the protruding block 61 slides along the vertical part 52; the process of the compensation rail 6 after rotation and upward movement, and the alignment with the support rails 3 and the running track of the shuttle car, is the opening of the compensation rail 6, the process of the compensation rail 6 after downward movement and rotation reset is the retraction of the compensation rail 6, when the compensation rail 6 is opened, the limiting assembly contacts and limits the shuttle car, facilitating the movement of the shuttle car, when the compensation rail 6 is in the retracted state, the limiting assembly limits the shuttle car on the support rail 3, improving the stability of the shuttle car during the lifting of the lifting frame 2; through the cooperation of the protruding block 61 and the horizontal part 51 and the vertical part 52 of the guide groove, the compensation rail 6 is first rotated and then moved upward when it is opened, ensuring the alignment degree of the compensation rail 6 with the support rails 3 and the running track of the shuttle car, and improving the stability of the shuttle car when passing through the compensation rail 6.

[0040] Specifically, the limiting assembly comprises a limiting rod 31 slidably arranged on the support rail 3, the limiting rod 31 is provided with inclined surfaces at both ends, and the inclined surfaces are matched with the wheels of the shuttle car, a plurality of first springs 32 are arranged between the limiting rod 31 and the support rail 3, both ends of the first spring 32 are fixedly connected with the limiting rod 31 and the support rail 3, when the shuttle car drives into the lifting frame 2, the wheels press the inclined surfaces of the limiting rod 31, causing the limiting rod 31 to move downward and the first spring 32 to compress, after the shuttle car drives through the limiting rod 31, the two wheels of the shuttle car are located on both sides of the limiting rod 31, and the limiting rod 31 moves upward and resets under the action of the first spring 32, as shown in the accompanying drawings. Figure 5 ​

[0041] In further provided embodiments of the present application, the support rail 3 is fixedly provided with a sliding rod 4, the sliding rod 4 is fixedly provided with a plurality of abutting blocks 41, the limiting rod 31 is provided with a plurality of U-shaped grooves 33, the plurality of abutting blocks 41 correspond to the plurality of U-shaped grooves 33 one by one, the abutting blocks 41 are slidingly arranged in the U-shaped grooves 33 and abutingly cooperate with the middle positions of the U-shaped grooves 33, and when the abutting blocks 41 abut with the middle positions of the U-shaped grooves 33, the downward movement of the limiting rod 31 is limited, at this time, the two wheels of the shuttle vehicle are located on both sides of the limiting rod 31, and the inclined surface provides a certain limiting force for the wheels to improve the stability of the lifting frame 2 during lifting.

[0042] Further, a plurality of second springs 42 are arranged between the sliding rod 4 and the support rail 3, the two ends of the second spring 42 are fixedly connected with the sliding rod 4 and the support rail 3 respectively, when the abutting blocks 41 abut with the middle positions of the U-shaped grooves 33, the second spring 42 is in a normal state, and the limiting rod 31 cannot move downward, after the sliding rod 4 slides and the abutting blocks 41 are separated from the middle positions of the U-shaped grooves 33, the second spring 42 is stressed, and the limiting rod 31 can move downward, after the shuttle vehicle moves to the lifting frame 2, the limiting rod 31 is reset under the action of the first spring 32, the sliding rod 4 is reset under the action of the second spring 42, the abutting blocks 41 abut with the middle positions of the U-shaped grooves 33, and the limiting rod 31 cannot move downward, so that the two wheels can be limited by the limiting rod 31 to ensure the stability of the shuttle vehicle.

[0043] Further, the two ends of the sliding rod 4 are provided with inclined surfaces, and the inclined surfaces abut with the compensation rails 6, during the opening of the compensation rails 6, when the compensation rails 6 rise, the inclined surfaces push the sliding rod 4 and the abutting blocks 41 to slide, so that the limiting rod 31 can move downward and compress the first spring 32, facilitating the movement of the shuttle vehicle, when the compensation rails 6 are retracted, the compensation rails 6 are separated from the sliding rod 4, the sliding rod 4 and the abutting blocks 41 are reset under the action of the second spring 42, the abutting blocks 41 abut with the middle positions of the U-shaped grooves 33, and the limiting rod 31 cannot move downward; it should be noted that by arranging the U-shaped grooves 33, the compensation rails 6 located on both sides of the lifting frame 2, as long as the sliding rod 4 slides and the abutting blocks 41 are separated from the middle positions of the U-shaped grooves 33, the limiting rod 31 can move downward under the pressure of the wheels of the shuttle vehicle.

[0044] Further provided in the embodiments of the present application is that the screw rod 7 is rotationally arranged on the lifting frame 2, the screw rod 7 is in threaded connection with the compensation rail 6, when the compensation rail 6 is opened, the screw rod 7 drives the compensation rail 6 to rotate, the protruding block 61 slides from one end of the transverse part 51 to the joint between the transverse part 51 and the vertical part 52, at this time, under the limiting action of the protruding block 61, the screw rod 7 continues to rotate, so as to make the compensation rail 6 move upwards, on the contrary, when the compensation rail 6 is folded, the screw rod 7 reversely rotates, so as to make the compensation rail 6 move downwards first and then rotate, and the folding of the compensation rail 6 is completed.

[0045] In the embodiments of the present application, the second pulley 71 is fixedly arranged on the screw rod 7, the second motor 24 is fixedly arranged on the lifting frame 2, the first pulley 25 is fixedly arranged on the output shaft of the second motor 24, the same side two second pulleys 71 and the first pulley 25 are transmissionally arranged with the belt 72, the screw rod 7 is driven to rotate by the second motor 24, the first pulley 25, the belt 72 and the second pulley 71, and the opening and folding of the compensation rail 6 is completed.

[0046] Specifically, the rack 11 is fixedly arranged on the support frame 1, the first motor 21 is fixedly arranged on the lifting frame 2, the gear 22 is fixedly arranged on the output shaft of the first motor 21, and the gear 22 is in meshing transmission with the rack 11; the guide wheel 23 is rotationally arranged on the lifting frame 2 and abuts against the support frame 1; and the rack 11, the first motor 21, the gear 22 and the guide wheel 23 are all arranged with four groups, four guide wheels 23 are arranged to be tensioned along the output shaft direction of the first motor 21, so as to limit the displacement of the lifting frame 2 in the length direction, improve the stability of the lifting frame 2 in the lifting process, and four first motors 21 simultaneously drive the gears 22 to complete the lifting of the lifting frame 2 through the cooperation with the rack 11.

[0047] In the further provided scheme of the present application, the chain wheel set 12 is arranged on the support frame 1, the counterweight module 13 is slidingly arranged on the support frame 1, four chains 14 are fixedly arranged between the counterweight module 13 and the lifting frame 2, and the two ends of the chain 14 are fixedly connected with the lifting frame 2 and the counterweight module 13 and pass through the chain wheel set 12, the counterweight module 13, the chain 14 and the chain wheel set 12 are arranged in cooperation, so as to reduce the pressure of the first motor 21 in the lifting process of the lifting frame 2, and the counterweight module 13 can adjust the weight according to the actual application scene, which is the prior art.

[0048] Working principle: when the shuttle vehicle enters or exits the lifting frame 2, the second motor 24 on the corresponding side is started, and the first pulley 25, the belt 72 and the second pulley 71 are rotated, and when the second pulley 71 drives the screw rod 7 to rotate, the protrusion 61 slides to the connection between the horizontal part 51 and the vertical part 52, in this process, the screw rod 7 drives the compensation rail 6 to rotate from the vertical state to the parallel state with the support rail 3, then, the protrusion 61 is located at the connection between the horizontal part 51 and the vertical part 52, the screw rod 7 continues to rotate, the rotation of the compensation rail 6 is limited, under the action of the protrusion 61 and the vertical part 52, the compensation rail 6 rises, in this process, the protrusion 61 slides in the vertical part 52, and after the compensation rail 6 rises, the compensation rail 6 abuts against the inclined surface of the sliding rod 4 and pushes the sliding rod 4 to slide, so that the abutting block 41 on the sliding rod 4 slides to one side of the U-shaped groove 33, at this time, the abutting block 41 does not contact the middle position of the U-shaped groove 33, that is, the abutting block 41 does not limit the limiting rod 31, at this time, the compensation rail 6 also rises to be aligned with the support rail 3 and the running track of the shuttle vehicle respectively, at this time, the shuttle vehicle moves to the lifting frame 2, in the moving process, when passing through the limiting rod 31, the pressure on the limiting rod 31 is caused through the inclined surface of the limiting rod 31, so that the limiting rod 31 moves downward, and the first spring 32 is compressed, after the shuttle vehicle runs through the limiting rod 31, that is, after the wheels of the shuttle vehicle are located on both sides of the limiting rod 31, the limiting rod 31 loses the pressure and is reset under the action of the first spring 32, then, the second motor 24 reversely rotates, so that the compensation rail 6 slides downward and rotates to be collected, when the compensation rail 6 is separated from the sliding rod 4, the sliding rod 4 slides and resets under the action of the second spring 42, so that the abutting block 41 on the sliding rod 4 slides to the middle position of the U-shaped groove 33, and the downward movement of the limiting rod 31 is limited, and the stability of the shuttle vehicle in the lifting process of the lifting frame 2 is improved.

[0049] When the lifting frame 2 is lifted, the four first motors 21 are started at the same time, the lifting of the lifting frame 2 is realized through the meshing transmission of the gear 22 and the rack 11.

[0050] The above only describes some exemplary embodiments of the application in a descriptive manner, and it is self-evident that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the application. Therefore, the above drawings and descriptions are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the application.

Claims

1. A floor-changing lifting device for a four-way shuttle vehicle, comprising a support frame (1) and a lifting frame (2), characterized in that: Two support rails (3) are fixedly provided on the lifting frame (2), and both ends of the two support rails (3) are provided with compensation rails (6), and the two ends of the compensation rails (6) are respectively adapted to the support rails (3) and the travel track of the shuttle vehicle; A fixed tube (5) corresponding to the compensation rail (6) is fixedly provided on the lifting frame (2), the fixed tube (5) and the compensation rail (6) are slidably and rotatably connected, a protrusion (61) is fixedly provided on the compensation rail (6), a guide groove is provided on the fixed tube (5), and the protrusion (61) is slidably provided in the guide groove; The guide groove comprises a transverse portion (51) and a vertical portion (52); It also includes a limit component, which limits the shuttle car during the lifting process of the lifting frame (2), and when the compensation rail (6) on one side of the lifting frame (2) is opened, the limit component is passively released from limiting the shuttle car; The limiting assembly comprises a limiting rod (31) slidably arranged on the support rail (3), and both ends of the limiting rod (31) are provided with inclined surfaces, and the inclined surfaces are adapted to the wheels of the shuttle vehicle; A plurality of first springs (32) are provided between the limiting rod (31) and the support rail (3), and two ends of the first springs (32) are fixedly connected to the limiting rod (31) and the support rail (3), respectively; A sliding rod (4) is fixedly provided on the support rail (3), a plurality of abutment blocks (41) are fixedly provided on the sliding rod (4), a plurality of U-shaped grooves (33) are provided on the limiting rod (31), the plurality of abutment blocks (41) correspond one to one with the plurality of U-shaped grooves (33), and the abutment blocks (41) are slidably provided in the U-shaped grooves (33) and abut against the middle position of the U-shaped grooves (33); Both ends of the sliding rod (4) are arranged as inclined surfaces, and are in abutment with the compensation rail (6) via the inclined surfaces.

2. The four-way shuttle vehicle floor-changing lifting device according to claim 1, characterized in that: A plurality of second springs (42) are provided between the sliding rod (4) and the support rail (3), and two ends of the second springs (42) are fixedly connected to the sliding rod (4) and the support rail (3), respectively.

3. The four-way shuttle vehicle floor-changing lifting device according to claim 1, characterized in that: A screw rod (7) is rotatably provided on the lifting frame (2), and the screw rod (7) is threadedly connected to the compensation rail (6).

4. The layer-changing lifting device for a four-way shuttle vehicle according to claim 3, characterized in that: A second pulley (71) is fixedly provided on the screw rod (7), a second motor (24) is fixedly provided on the lifting frame (2), a first pulley (25) is fixedly provided on the output shaft of the second motor (24), and a belt (72) is provided for transmission between the two second pulleys (71) and the first pulley (25) on the same side.

5. The layer-changing lifting device for a four-way shuttle vehicle according to claim 1, characterized in that: A rack (11) is fixedly provided on the support frame (1), a first motor (21) is fixedly provided on the lifting frame (2), a gear (22) is fixedly provided on the output shaft of the first motor (21), and the gear (22) is meshed with the rack (11) for transmission; A guide wheel (23) is rotatably provided on the lifting frame (2), and the guide wheel (23) is in abutment with the support frame (1); Furthermore, four groups of the rack (11), the first motor (21), the gear (22) and the guide wheel (23) are provided.

6. The layer-changing lifting device for a four-way shuttle vehicle according to claim 1, characterized in that: A sprocket group (12) is provided on the support frame (1), a counterweight module (13) is slidably provided on the support frame (1), four chains (14) are fixedly provided between the counterweight module (13) and the lifting frame (2), and two ends of the chain (14) are respectively fixedly connected to the lifting frame (2) and the counterweight module (13), and pass around the sprocket group (12).

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