Mechanical tray four-way shuttle vehicle with rack structure

Abstract

The utility model discloses a mechanical tray four-way shuttle vehicle of a rack structure, and belongs to the field of logistics storage. Rail changing and lifting are completed through a rack sliding block structure, so that the whole vehicle can systematically control power needed by cargo bearing and rail changing through two independent motors, and the purposes of effectively simplifying the structure of parts between racks and facilitating control are achieved. Comprising a vehicle body, a plurality of groups of straight driving wheels and straight driven wheels which are arranged on the vehicle body through shafts and are in transmission connection through a walking driving assembly, and a plurality of groups of transverse driving wheels, transverse driven wheels and tray supporting plates which are in transmission connection through a reversing and jacking mechanism; the walking driving assembly comprises a two-way gear motor, two output ends of the two-way gear motor are in driving connection with a straight-moving transmission shaft and a transverse-moving transmission shaft through chain and chain wheel assemblies respectively, the straight-moving transmission shaft is in transmission connection with a straight-moving driving wheel, and the transverse-moving transmission shaft is in transmission connection with a transverse-moving driving wheel.

Description

Technical Field

[0001] The utility model relates to a novel four-way shuttle vehicle for transporting goods, belonging to the field of logistics and warehousing. Background Art

[0002] The global development of e-commerce and intelligent manufacturing has driven advancements in logistics and warehousing technologies. Traditional cargo storage methods suffer from drawbacks such as difficulty accessing and limited storage capacity, leading to the concept of dense warehousing. Three-dimensional warehouses are a key solution for dense warehousing. With the development of three-dimensional warehouses, four-way shuttles, characterized by flexible scheduling, stable structures, and high access efficiency, have become widely used. These shuttles feature four-way travel, cargo lifting and handling, independent track switching, status information monitoring, and dynamic traffic management. These shuttles operate on intersecting tracks within the warehouse, switching between horizontal and vertical tracks and using a lifting function to access cargo.

[0003] Existing four-way shuttles generally utilize hydraulic and mechanical transmission and reversing mechanisms. Due to the limited interior space of the vehicle, the compact mechanical transmission and reversing mechanism installation makes it difficult to disassemble, replace, or maintain easily worn parts. The hydraulic reversing mechanism, on the other hand, utilizes a motor-driven fixed-stroke hydraulic cylinder for lifting control, along with a corresponding guide mechanism to assist the hydraulic cylinder. These large hydraulic and electrical system components hinder the miniaturization of the overall device. The refined connection and installation process requirements are also challenging, hindering manufacturing cost control. Furthermore, these hydraulic reversing mechanisms are prone to oil leakage, making them impractical for applications in the tobacco, cosmetics, apparel, pharmaceutical, and other industries requiring high cleanliness standards.

[0004] In view of this, this patent application is hereby filed. Utility Model Content

[0005] The mechanical four-way shuttle vehicle with a rack structure described in the utility model aims to solve the problems existing in the above-mentioned prior art and proposes to complete track changing and lifting through a rack slider structure, so that the whole vehicle can control the power required for cargo loading and track changing through two independent motor systems, thereby achieving the purpose of effectively simplifying the structure of parts between the racks and facilitating operation.

[0006] To achieve the above-mentioned design purpose, the rack-structured mechanical pallet four-way shuttle includes a body, an array of straight driving wheels and straight driven wheels whose shafts are arranged on the body and connected by a travel drive assembly, and an array of transverse driving wheels, transverse driven wheels and pallet support plates connected by a reversing and lifting mechanism; the travel drive assembly includes a bidirectional reduction motor, and the two sets of output ends of the bidirectional reduction motor are respectively driven and connected to a set of straight transmission shafts and a set of transverse transmission shafts through chain sprocket assemblies, the straight transmission shaft is connected to the straight driving wheel, and the transverse transmission shaft is connected to the transverse driving wheel.

[0007] Furthermore, the reversing and lifting mechanism includes a lifting assembly, a reversing and lifting motor, the output end of the reversing and lifting motor is driven and connected to the reversing and lifting control shaft, the two ends of the reversing and lifting control shaft are driven and connected to the lifting reversing gear assembly, and the lifting reversing gear assembly is respectively driven and connected to the lifting assembly and the rack slider.

[0008] Furthermore, a slider rail is installed on the top of the vehicle body, the slide rail slider is snapped into the slider rail and fixedly connected to the rack slider, the rack slider is installed on the bottom plate of the vehicle body, and the rack slider has a horizontal tooth group that is meshed with the jacking reversing gear assembly; the transverse driving wheel and the transverse driven wheel are respectively axially arranged on the weldment bracket, and a guide shaft is arranged on the side of the weldment bracket, which is embedded in the guide groove of the rack slider and can move back and forth along the guide groove.

[0009] Furthermore, a transverse wheel guide column guide sleeve assembly is provided vertically on the weldment bracket for providing lifting guidance in the vertical direction.

[0010] Furthermore, a bearing is provided at the nesting position between the guide shaft and the guide groove of the rack slider.

[0011] Furthermore, the jacking assembly includes a jacking block and a rack support, a rack fixer and two sets of lifting racks are vertically connected between the jacking block and the rack support, and each set of lifting racks is meshed with the jacking reversing gear assembly.

[0012] Furthermore, a vertically extending support plate limiting rod is connected to the bottom of the pallet support plate, and the support plate limiting rod is sleeved through a through hole located in the center of the jacking block.

[0013] Furthermore, a guard plate is vertically installed between the jacking assembly and the rack slider.

[0014] In summary, the mechanical pallet four-way shuttle with a rack structure has the following advantages:

[0015] 1. This application adopts a reversing and lifting structure solution with a rack and pinion structure, which has the outstanding characteristics of higher transmission accuracy, better stability, and suitability for industries and scenarios with high cleanliness requirements compared to existing mechanical and hydraulic mechanisms.

[0016] 2. This application adopts two sets of independently arranged motor components to realize the power required for walking drive and cargo lifting and reversing respectively, which significantly saves the internal space of the vehicle, is conducive to the miniaturization design of the whole vehicle and meets the use requirements in small and compact working spaces.

[0017] 3. The rack slider, which serves as the core of the lifting and reversing transmission, has no rigid connection with the vehicle body and can be directly and integrally removed, making it easy to repair or replace worn parts, thereby effectively improving and maintaining the vehicle's good operating condition.

[0018] 4. The transmission ratio of the designed slider rack and gear system can be adjusted accordingly according to the operation requirements, thereby effectively improving the operation efficiency of the entire vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will now be further described with reference to the following drawings.

[0020] Figure 1 This is a schematic diagram of the mechanical pallet four-way shuttle with a rack structure described in this application;

[0021] Figure 2 It is a structural diagram of the vehicle body and running wheel system;

[0022] Figure 3 It is a structural diagram of the reversing and jacking mechanism;

[0023] Figure 4-1 This is a cross-sectional view of the vehicle body at the position of the rack slider during the reversing and jacking process;

[0024] Figure 4-2 This is a cross-sectional view of the vehicle body at the position of the jacking assembly during the reversing and jacking process;

[0025] Figure 5 It is a structural diagram of the jacking rack assembly; DETAILED DESCRIPTION

[0026] Example 1, as Figures 1 to 5 As shown, this embodiment proposes a novel rack-structured mechanical pallet four-way shuttle vehicle, which includes a vehicle body 2, a plurality of linear driving wheels 101 and linear driven wheels 102 whose shafts are arranged on the vehicle body 2 and are connected by a travel drive assembly, a plurality of transverse driving wheels 105 and transverse driven wheels 104 connected by a reversing and lifting mechanism, and a pallet support plate 1;

[0027] The travel drive assembly includes a bidirectional reduction motor 107, and the two output ends of the bidirectional reduction motor 107 are respectively connected to a set of linear transmission shafts 103 and a set of transverse transmission shafts 106 through rack and pinion assemblies. The linear transmission shafts 103 are connected to the linear driving wheel 101, and the transverse transmission shafts 106 are connected to the transverse driving wheel 105.

[0028] The reversing and lifting mechanism includes a lifting assembly 4, a reversing and lifting motor 201 mounted on the bottom plate of the vehicle body 2 via a reduction motor fixing plate 9, the output end of the reversing and lifting motor 201 drivingly connected to a reversing and lifting control shaft 202, and both ends of the reversing and lifting control shaft 202 drivingly connected to a lifting reversing gear assembly 10; the lifting reversing gear assembly 10 is respectively connected to the lifting assembly 4 and the rack slider 6;

[0029] Specifically, a slider rail 601 is installed on the top of the vehicle body 2. The slide rail slider 3 is snapped onto the slider rail 601 and fixedly connected to the rack slider 6. The rack slider 6 is installed on the bottom plate of the vehicle body 2. The rack slider 6 has a horizontal gear set that meshes with the jacking reversing gear assembly 10. When the reversing and jacking control shaft 202 drives the jacking reversing gear assembly 10 to rotate, the rack slider 6 moves in the horizontal direction. The upward load it receives can be transferred to the slider rail 601, thereby effectively reducing the vibration of the vehicle body 2 during reversing.

[0030] The transverse driving wheel 105 and the transverse driven wheel 104 are respectively axially arranged on the weldment bracket 203; a transverse wheel guide column guide sleeve assembly 5 is provided vertically on the weldment bracket 203 for providing lifting and lowering guidance in the vertical direction, and a guide shaft 7 is provided laterally on the weldment bracket 203, which is nested in the guide groove of the rack slider 6 and can move back and forth along the guide groove; when the rack slider 6 moves in the horizontal direction, the guide shaft 7 can drive and change the vertical height of the weldment bracket 203, thereby completing the track switching operation between the straight and transverse wheel trains.

[0031] Furthermore, a bearing is provided at the nesting position between the guide shaft 7 and the guide groove of the rack slider 6 .

[0032] The jacking assembly 4 includes a jacking block 401 and a rack support 403. A rack fixer 404 and two sets of lifting racks 402 are vertically connected between the jacking block 401 and the rack support 403. Each set of lifting racks 402 is meshed and connected to the jacking reversing gear assembly 10. When the reversing and jacking control shaft 202 drives the jacking reversing gear assembly 10 to rotate, the lifting rack 402 rises and falls vertically, thereby driving the pallet plate 1 to be lifted or lowered through the jacking block 401.

[0033] In order to prevent the pallet support plate 1 and the lifting block 401 from separating from each other during the lifting process, thereby causing parts to fall off and be damaged, a vertically extending pallet limit rod 11 can be connected to the bottom of the pallet support plate 1, and the pallet limit rod 11 is inserted through the through hole located in the center of the lifting block 401.

[0034] A guard plate 8 is vertically installed between the jacking assembly 4 and the rack slider 6. The guard plate 8 can prevent lubricating oil from spilling inside the vehicle at the connection between the jacking reversing gear assembly 10 and the slider rack 602 and the lifting rack 402, thereby ensuring the cleanliness of the vehicle.

[0035] Along the axial direction of the reversing and jacking control shaft 202, the weldment bracket 203 on which the transverse driving wheel 105 and the transverse driven wheel 104 are installed is set at the outermost position, the top of the rack slider 6 is slidingly connected to the slide rail slider 3 to limit the running direction, the two are set in the middle position, and the jacking assembly 4 is set at the innermost position.

[0036] The embodiments described above, combined with the accompanying drawings, are merely preferred solutions for achieving the objectives of the present invention. Those skilled in the art will be able to draw inspiration from these solutions and directly deduce other alternative structures that are consistent with the design concepts of the present invention. Other structural features derived from these solutions should also fall within the scope of the solutions described in the present invention.

Claims

1. A mechanical four-way pallet shuttle with a rack structure, characterized by: It includes a vehicle body, a plurality of linear driving wheels and linear driven wheels with shafts arranged on the vehicle body and connected by a travel drive assembly, and a plurality of transverse driving wheels, transverse driven wheels and a pallet support plate connected by a reversing and lifting mechanism. The travel drive assembly includes a bidirectional reduction motor, and the two sets of output ends of the bidirectional reduction motor are respectively driven to connect a set of linear transmission shafts and a set of transverse transmission shafts through chain sprocket assemblies. The linear transmission shaft is connected to the linear driving wheel, and the transverse transmission shaft is connected to the transverse driving wheel.

2. The rack-structured mechanical pallet four-way shuttle according to claim 1, characterized in that: The reversing and jacking mechanism includes a jacking assembly, a reversing and jacking motor, the output end of the reversing and jacking motor is driven and connected to the reversing and jacking control shaft, the two ends of the reversing and jacking control shaft are driven and connected to the jacking reversing gear assembly, and the jacking reversing gear assembly is respectively driven and connected to the jacking assembly and the rack slider.

3. The rack-structured mechanical pallet four-way shuttle according to claim 2, characterized in that: A slider rail is installed on the top of the vehicle body, the slider rail is buckled on the slider rail and fixedly connected to the rack slider, the rack slider is installed on the bottom plate of the vehicle body, and the rack slider has a horizontal gear set that is meshed with the jacking reversing gear assembly; The transverse driving wheel and the transverse driven wheel are respectively axially arranged on the weldment bracket. A guide shaft is arranged on the side of the weldment bracket, which is embedded in the guide groove of the rack slider and can move back and forth along the guide groove.

4. The rack-structured mechanical pallet four-way shuttle according to claim 3, characterized in that: A transverse wheel guide column guide sleeve assembly for providing lifting guidance in the vertical direction is arranged on the weldment bracket.

5. The rack-structured mechanical pallet four-way shuttle according to claim 3, characterized in that: A bearing is provided at the nesting position between the guide shaft and the guide groove of the rack slider.

6. The mechanical four-way pallet shuttle with a rack structure according to claim 2, characterized in that: The jacking assembly includes a jacking block and a rack support, a rack fixer and two sets of lifting racks are vertically connected between the jacking block and the rack support, and each set of lifting racks is meshed with the jacking reversing gear assembly.

7. The mechanical four-way pallet shuttle with a rack structure according to claim 6, characterized in that: A vertically extending supporting plate limiting rod is connected to the bottom of the pallet supporting plate, and the supporting plate limiting rod is sleeved through a through hole located in the center of the jacking block.

8. The rack-structured mechanical pallet four-way shuttle according to claim 2, characterized in that: A guard plate is vertically installed between the jacking assembly and the rack slider.

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