Lower guide wheel device for stacking machine

Abstract

The utility model discloses a lower guide wheel device for a stacking machine, and particularly relates to the technical field of stacking machine guiding, the lower guide wheel device comprises a stacking machine base, a working groove is formed in the side face of the stacking machine base in a penetrating mode, two pairs of rotating arms are arranged at the bottom of the stacking machine base, and the top of one end of each rotating arm is fixedly connected with a fixing column. The fixing column is rotationally connected to the bottom of the stacking machine base and extends into the working groove, a double-shaft telescopic device is arranged in the working groove, the two ends of the double-shaft telescopic device are each provided with a pair of transmission assemblies, and the transmission assemblies drive the fixing column to rotate through telescopic power of the double-shaft telescopic device; one end of each rotating arm is movably connected with a wheel seat, the bottom of each wheel seat is rotationally connected with a lower guide wheel, and the top of each wheel seat is fixedly connected with a limiting sliding block. The utility model solves the technical problems that the overhaul burden exists when a plurality of lower guide wheels for the stacking machine are maintained, disassembled and assembled, and the operation and maintenance efficiency of the stacking machine is reduced.

Description

Technical Field

[0001] This utility model relates to the field of stacker crane guidance technology, and more specifically, to a lower guide wheel device for a stacker crane. Background Technology

[0002] Stacker cranes are a type of warehousing equipment, divided into two types: bridge stacker cranes and aisle stacker cranes (also known as aisle cranes). The main function of stacker cranes is to move back and forth within the aisles of an automated warehouse, storing goods located at the aisle entrance into racking compartments, or retrieving goods from racking compartments and transporting them to the aisle entrance.

[0003] Currently, stacker cranes typically use lower guide wheels mounted on the crane base, with at least four sets of these wheels. Because the guide wheels roll and slide on the track for extended periods, wear is likely to increase. Furthermore, the multiple lower guide wheels create a maintenance burden during disassembly and reassembly, reducing the efficiency of stacker crane operation and maintenance.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a lower guide wheel device for a stacker crane, including a stacker crane base, a working groove through which a working groove is formed on the side of the stacker crane base, two pairs of rotating arms are provided at the bottom of the stacker crane base, a fixed column is fixedly connected to the top of one end of each rotating arm, the fixed column is rotatably connected to the bottom of the stacker crane base and extends into the working groove, a dual-axis telescopic device is provided in the working groove, a pair of transmission components are provided at both ends of the dual-axis telescopic device, and the transmission components drive the fixed column to rotate through the telescopic power of the dual-axis telescopic device;

[0007] Each rotating arm is movably connected to a wheel seat at one end, and a lower guide wheel is rotatably connected to the bottom of the wheel seat. A limit slider is fixedly connected to the top of the wheel seat, and the limit slider is slidably connected to the bottom position of the stacker crane base.

[0008] In a preferred embodiment, the transmission assembly includes a double-sided rack disposed in the working groove, with one end of the double-sided rack fixedly connected to the output end of the dual-axis telescopic device, and a drive gear meshing with both sides of the double-sided rack, the drive gear being fixedly connected to the top of the fixed column.

[0009] In a preferred embodiment, a slide rail is fixedly connected inside the working groove, and the double-sided rack is slidably connected to the slide rail.

[0010] In a preferred embodiment, a plug plate is fixedly connected to one end of the wheel seat, and the plug plate is inserted into one end of the rotating arm.

[0011] In a preferred embodiment, the limiting slider is provided with a convex structure, and the bottom of the stacker base is provided with a limiting groove for the sliding of the limiting slider.

[0012] In a preferred embodiment, the limiting groove is concentrically arranged with the fixing column.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] This utility model discloses a lower guide wheel device for a stacker crane. By setting wheel seats at the ends of four sets of rotating arms, and with the cooperation of a dual-axis telescopic device and corresponding transmission components, the rotating arms can rotate relative to each other in pairs, and quickly control the lower guide wheels to roll against the side of a dedicated track, thus achieving the effect of guiding the movement of the stacker crane. In addition, with the wheel seats inserted into the rotating arms and the sliding cooperation between the limiting slider and the limiting groove, the four sets of lower guide wheels can simultaneously perform unfolding and retraction actions. The retracted lower guide wheels facilitate rapid movement guidance for the stacker crane, while the unfolded lower guide wheels can be easily moved out of position and quickly achieve the connection and release. This reduces the difficulty of disassembling and assembling the lower guide wheels and improves the operation and maintenance progress of the stacker crane. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] Figure 1 This is a first-view structural schematic diagram of a lower guide wheel device for a stacker crane according to the present invention.

[0017] Figure 2 This is a second-view structural schematic diagram of a lower guide wheel device for a stacker crane according to the present invention.

[0018] Figure 3 This utility model Figure 1 A structural diagram excluding the stacker crane base.

[0019] Figure 4This is a schematic diagram of the rotating arm and wheel seat of this utility model.

[0020] The attached diagram is labeled as follows: 1. Stacker base; 2. Working slot; 3. Rotating arm; 31. Fixed column; 4. Dual-axis telescopic device; 5. Transmission assembly; 51. Double-sided rack; 52. Drive gear; 6. Wheel seat; 61. Insert plate; 7. Lower guide wheel; 8. Limiting slider; 9. Slide rail; 10. Limiting groove. Detailed Implementation

[0021] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] See also Figures 1-4 This utility model provides a lower guide wheel device for a stacker crane, including a stacker crane base 1, which is used to fix the stacker crane and is part of the main body of the stacker crane. A working groove 2 is opened through the side of the stacker crane base 1. Two pairs of rotating arms 3 are provided at the bottom of the stacker crane base 1. A fixed column 31 is fixedly connected to the top of one end of each rotating arm 3. The fixed column 31 is rotatably connected to the bottom of the stacker crane base 1 and extends into the working groove 2. A dual-axis telescopic device 4 is provided in the working groove 2. In this application, the dual-axis telescopic device 4 is a dual-axis telescopic motor, and the dual-axis telescopic motor is a self-locking dual-axis telescopic motor, which can ensure that the telescopic drive has self-locking property. A battery and a controller can be installed on the stacker crane base 1 of this application, which can facilitate the electrical control of the dual-axis telescopic device 4. The wiring method of the dual-axis telescopic device 4 is a conventional wiring method. A pair of transmission components 5 are provided at both ends of the dual-axis telescopic device 4. The transmission components 5 drive the fixed column 31 to rotate through the telescopic power of the dual-axis telescopic device 4.

[0023] The transmission component 5 includes a double-sided rack 51, which is disposed in the working groove 2. One end of the double-sided rack 51 is fixedly connected to the output end of the dual-shaft telescopic device 4. Both sides of the double-sided rack 51 are meshed with a drive gear 52, which is fixedly connected to the top of the fixed column 31.

[0024] A slide rail 9 is fixedly connected inside the working groove 2, and a double-sided rack 51 is slidably connected to the slide rail 9. The slide rail 9 can improve the stability of the linear movement of the double-sided rack 51.

[0025] Specifically, the controller controls the operation of the dual-axis telescopic device 4. The extension and retraction of the piston of the dual-axis telescopic device 4 can drive the double-sided rack 51 to move linearly on the slide rail 9. The tooth surfaces of the double-sided rack 51 can mesh with the drive gear 52 to rotate. The rotation of the drive gear 52 can cause the rotating arm 3 on the fixed column 31 to rotate at the bottom of the stacker base 1.

[0026] Each rotating arm 3 is movably connected to a wheel seat 6 at one end, and a lower guide wheel 7 is rotatably connected to the bottom of the wheel seat 6. Since each rotating arm 3 can rotate synchronously, the lower guide wheel 7 on the rotating arm 3 can quickly approach or move away from the dedicated track. The movement of the lower guide wheel 7 approaching the track can conveniently and quickly provide guidance for the stacker crane. The movement of the lower guide wheel 7 away from the track is the unfolded state. The synchronous unfolding of multiple lower guide wheels 7 can facilitate structural inspection. Since the lower guide wheel 7 can move away from the position of the stacker crane base 1 when unfolded, the obstruction of vision can be avoided. The top of the wheel seat 6 is fixedly connected to a limit slider 8, and the limit slider 8 is slidably connected to the bottom position of the stacker crane base 1.

[0027] It is worth noting that because the angle of the multiple lower guide wheels 7 can be adjusted under the rotation control of the rotating arm 3, it can be used to achieve rolling support with tracks of different widths and the lower guide wheels 7.

[0028] One end of the wheel seat 6 is fixedly connected to the insert plate 61, which is inserted into one end of the rotating arm 3. In this application, one end of the rotating arm 3 is provided with a slot for inserting the insert plate 61. The insert plate 61 can be easily inserted and connected with the rotating arm 3. Since the wheel seat 6, the lower guide wheel 7, the insert plate 61 and the limiting slider 8 can form a whole, this whole can be quickly disassembled and assembled at one end of the rotating arm 3. Therefore, when the lower guide wheel 7 is severely worn, it can be easily disassembled and assembled on the stacker crane base 1.

[0029] The limiting slider 8 is convex in shape, and the convex shape of the limiting slider 8 is inverted convex. The bottom of the stacker base 1 is provided with a limiting groove 10 for the sliding of the limiting slider 8. The limiting slider 8 can provide an annular sliding limiting path, which can provide a limiting force for the wheel seat 6 inserted on the rotating arm 3 and prevent the wheel seat 6 from detaching from the rotating arm 3.

[0030] The limiting slide 10 and the fixed column 31 are concentrically arranged. The advantage of this concentric arrangement is that, under the drive and cooperation of the dual-axis telescopic device 4 and the transmission component 5, the limiting slider 8 can move within the limiting slide 10 based on the center position of the fixed column 31. At this time, the wheel seat 6 is affected by the path of the limiting slide 10, so the insert plate 61 is not easy to disengage from the rotating arm 3. When the limiting slider 8 disengages from the limiting slide 10, the wheel seat 6 is not limited, and the wheel seat 6 can be directly disassembled and connected through the insertion of the insert plate 61 and the rotating arm 3. This can improve the efficiency of disassembly and assembly of the lower guide wheel 7.

Claims

1. A lower guide wheel device for a stacker crane, comprising a stacker crane base (1), characterized in that: The stacker base (1) has a working groove (2) through the side. The bottom of the stacker base (1) is provided with two pairs of rotating arms (3). The top of one end of each rotating arm (3) is fixedly connected to a fixed column (31). The fixed column (31) is rotatably connected to the bottom of the stacker base (1) and extends into the working groove (2). The working groove (2) is provided with a double-axis telescopic device (4). Both ends of the double-axis telescopic device (4) are provided with a pair of transmission components (5). The transmission components (5) drive the fixed column (31) to rotate through the telescopic power of the double-axis telescopic device (4). Each rotating arm (3) is movably connected to a wheel seat (6) at one end. The bottom of the wheel seat (6) is rotatably connected to a lower guide wheel (7). The top of the wheel seat (6) is fixedly connected to a limit slider (8). The limit slider (8) is slidably connected to the bottom position of the stacker base (1).

2. The lower guide wheel device for a stacker crane according to claim 1, characterized in that: The transmission assembly (5) includes a double-sided rack (51), which is disposed in the working groove (2). One end of the double-sided rack (51) is fixedly connected to the output end of the dual-axis telescopic device (4). Both sides of the double-sided rack (51) are meshed with a drive gear (52), which is fixedly connected to the top of the fixed column (31).

3. The lower guide wheel device for a stacker crane according to claim 2, characterized in that: The working groove (2) is fixedly connected to a slide rail (9), and the double-sided rack (51) is slidably connected to the slide rail (9).

4. The lower guide wheel device for a stacker crane according to claim 1, characterized in that: One end of the wheel seat (6) is fixedly connected to a plug plate (61), which is inserted into one end of the rotating arm (3).

5. The lower guide wheel device for a stacker crane according to claim 1, characterized in that: The limiting slider (8) is provided with a convex structure, and the bottom of the stacker base (1) is provided with a limiting groove (10) for the sliding of the limiting slider (8).

6. The lower guide wheel device for a stacker crane according to claim 5, characterized in that: The limiting slide (10) and the fixing column (31) are concentrically arranged.

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