Annular rail shuttle vehicle steering device

Abstract

The utility model discloses an annular rail shuttle vehicle steering device which comprises a rail, the upper end of the rail is connected with a conveying vehicle, the lower end of the conveying vehicle is connected with a steering assembly, a motor and a driving wheel, the steering assembly comprises a fixed shaft, the outer wall of the fixed shaft is connected with a bearing sleeve and a driven gear, the bearing sleeve is installed at the lower end of the conveying vehicle, and the driven gear is connected with the motor. The two ends of the fixing shaft are connected with connecting shafts, the other ends of the connecting shafts are provided with idler wheels, the ends, away from the fixing shaft, of the connecting shafts are movably connected with guide balls, and the connecting shafts are connected with the idler wheels through the guide balls. The motor drives the steering assembly, the steering assembly drives the conveying vehicle to be matched with the movable wheels to drive the conveying vehicle to move on the rail, the purpose of conveying articles is achieved, the distance between the idler wheels is adjusted by adjusting the distance between the connecting shaft and the fixed shaft, adjustment is conveniently conducted according to the specification of the rail, and the conveying vehicle is convenient to use. The device is suitable for rails of different specifications, and practicability of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of shuttle vehicles, and in particular relates to a steering device for a ring-type rail-mounted shuttle vehicle. Background Art

[0002] With the rapid development of warehousing, society is in urgent need of new automated, high-density smart warehouses. Shuttle vehicles are a type of smart storage and retrieval vehicle used for pallet-type goods in storage shelves. Compared with traditional warehousing and logistics, shuttle vehicles are more flexible and easier to expand. Not only can they reasonably improve freight efficiency and site utilization, but they can also significantly save labor and storage and logistics area. It is because of this advantage that shuttle vehicles have been chosen by many industries and are increasingly widely used.

[0003] For example, the Chinese patent with application number 202222546550.6, the utility model discloses a heavy-duty circular shuttle, which relates to the technical field of intelligent warehouse shuttles, specifically a heavy-duty circular shuttle, including a heavy-duty circular shuttle, a curved track, and a fixed connecting plate. The heavy-duty circular shuttle can run on the top of the curved track. The heavy-duty circular shuttle includes a conveying mechanism, an electrical cabinet arranged on one side of the top of the conveying mechanism, and a driving wheel group and a driven wheel group arranged at the bottom of the conveying mechanism. The number of the driving wheel group and the driven wheel group is two. The heavy-duty circular shuttle is driven by setting two sets of driving wheel groups to avoid the large volume of a single motor, which causes a large difference in force at various parts of the shuttle. At the same time, it avoids the large difference in force at various parts of the shuttle when transporting large-mass and small-volume goods, and improves the stability of the shuttle when transporting large-mass and small-volume goods. In addition, when the shuttle moves on the curved track, the speed of the front and rear two sets of driving motors can be controlled by PLC to synchronize the front and rear two walking wheels.

[0004] However, there are some problems with the prior art: the shuttle needs to be used on a paired circular rail track, but the track thicknesses of different circular rail tracks are different, which makes the shuttle unusable and requires replacement of the shuttle, which is time-consuming and labor-intensive. Therefore, we propose a steering device for a circular rail shuttle. Utility Model Content

[0005] In view of the problems existing in the above-mentioned technology, the utility model provides a steering device for a ring-type rail shuttle, which solves the problem that the shuttle car needs to be used on a matching ring-type rail slideway, but the track parts of different ring-type rails have different thicknesses, which makes the shuttle car unusable and requires replacement of the shuttle car, which is time-consuming and labor-intensive.

[0006] The utility model is implemented as follows: a ring-type rail shuttle steering device comprises a track, the upper end of the track is connected to a conveying vehicle, the lower end of the conveying vehicle is connected to a steering assembly, a motor and a plurality of driven wheels, the steering assembly comprises a fixed shaft, the outer wall of the fixed shaft is connected to a plurality of bearing sleeves and driven teeth, the driven teeth are located between the bearing sleeves, the bearing sleeves are installed at the lower end of the conveying vehicle, both ends of the fixed shaft are connected to adjustable connecting shafts, the other end of the connecting shaft is provided with a roller, the end of the connecting shaft away from the fixed shaft is movably connected to a guide ball, the connecting shaft is connected to the roller through the guide ball, the output end of the motor is connected to a driving tooth, and the driving tooth is connected to the driven tooth.

[0007] As a preferred embodiment of the utility model, a receiving groove for receiving a guide ball is provided on an outer wall of the roller close to the connecting shaft, and a circular groove is provided on the inner wall of the roller. The diameter of the circular groove is larger than the receiving groove, and the circular groove is connected to the receiving groove.

[0008] As a preferred embodiment of the present invention, the guide ball is located inside the receiving groove, and the outer wall of the guide ball is connected to a circular clamping plate that fits with the circular clamping groove.

[0009] As a preferred embodiment of the utility model, an opening is provided on the outer wall of the guide ball, a center groove is provided at the center of the inner wall of the guide ball, the center groove is connected to the opening, and connected limiting holes are provided on both upper and lower end surfaces of the center groove.

[0010] As a preferred embodiment of the utility model, a clamping block is connected to one end of the connecting shaft close to the guide ball, and the clamping block extends through the opening into the center groove. The upper and lower end surfaces of the clamping block located inside the center groove are connected to a limiting shaft, and the other end of the limiting shaft extends to the inside of the limiting hole.

[0011] As a preferred embodiment of the present invention, one end of the connecting shaft close to the fixed shaft is provided with an external thread.

[0012] As a preferred embodiment of the present invention, both left and right outer walls of the fixed shaft are provided with inwardly recessed threaded holes, and the fixed shaft is threadedly connected to the connecting shaft through the threaded holes.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model drives the steering assembly through a motor, and the steering assembly drives the conveyor vehicle, which cooperates with the moving wheel to drive the conveyor vehicle to move on the track to achieve the purpose of conveying items. By adjusting the distance between the connecting shaft and the fixed shaft, the distance between the rollers is adjusted, which is convenient for adjustment according to the size of the track. It is suitable for tracks of different specifications and improves the practicality of the device;

[0015] 2. The utility model rotates the connecting shaft to rotate the end of the connecting shaft that extends into the threaded hole. The connecting shaft is connected by threads, which makes it easy to adjust the distance between the rollers. The distance can be adjusted according to tracks of different sizes, making it convenient to use the conveyor vehicle. The connecting shaft is threadedly connected to the fixed shaft, which makes it easy to disassemble and install, and to replace and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram provided by an embodiment of the utility model;

[0017] Figure 2 It is a bottom view schematic diagram of a transport vehicle provided by an embodiment of the utility model;

[0018] Figure 3 It is a plan view of a steering assembly provided by an embodiment of the utility model;

[0019] Figure 4 It is a cross-sectional schematic diagram of a roller provided in an embodiment of the utility model;

[0020] Figure 5 It is a side view schematic diagram of a guide ball provided by an embodiment of the utility model;

[0021] Figure 6 It is a cross-sectional schematic diagram of a guide ball provided by an embodiment of the utility model;

[0022] Figure 7 It is a schematic diagram of the connection between the fixed shaft and the connecting shaft provided in an embodiment of the utility model.

[0023] In the figure: 1. track; 2. conveyor vehicle; 3. steering assembly; 4. motor; 5. driving wheel; 31. fixed shaft; 32. connecting shaft; 33. guide ball; 34. roller; 35. bearing sleeve; 311. driven gear; 312. threaded hole; 321. clamping block; 322. limiting shaft; 331. circular clamping plate; 332. center groove; 333. opening; 334. limiting hole; 341. storage groove; 342. circular clamping groove; 41. driving gear. DETAILED DESCRIPTION

[0024] In order to further understand the content, features and effects of the utility model, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0025] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0026] like Figure 1As shown, a ring-type rail shuttle steering device provided by an embodiment of the utility model comprises a track 1, the upper end of the track 1 is connected to a conveying vehicle 2, the lower end of the conveying vehicle 2 is connected to a steering assembly 3, a motor 4 and a plurality of driven wheels 5, the steering assembly 3 comprises a fixed shaft 31, the outer wall of the fixed shaft 31 is connected to a plurality of bearing sleeves 35 and a driven gear 311, the driven gear 311 is located between the bearing sleeves 35, the bearing sleeves 35 are installed at the lower end of the conveying vehicle 2, both ends of the fixed shaft 31 are connected to an adjustable connecting shaft 32, the other end of the connecting shaft 32 is provided with a roller 34, the end of the connecting shaft 32 away from the fixed shaft 31 is movably connected to a guide ball 33, the connecting shaft 32 is connected to the roller 34 through the guide ball 33, the output end of the motor 4 is connected to a driving tooth 41, and the driving tooth 41 is connected to the driven tooth 311. The utility model drives the steering assembly 3 through the motor 4, and the steering assembly 3 drives the conveying vehicle 2, which cooperates with the moving wheel 5 to drive the conveying vehicle 2 to move on the track 1 to achieve the purpose of conveying items. The distance between the connecting shaft 32 and the fixed shaft 31 is adjusted, thereby adjusting the distance between the rollers 34, which is convenient for adjustment according to the size of the track 1. It is suitable for tracks 1 of different specifications, thereby improving the practicality of the device.

[0027] like Figures 2 to 7 As shown, a receiving groove 341 for receiving the guide ball 33 is provided on the outer wall of the roller 34 near the connecting shaft 32, and a circular clamping groove 342 is provided on the inner wall of the roller 34. The diameter of the circular clamping groove 342 is larger than that of the receiving groove 341, and the circular clamping groove 342 is connected to the receiving groove 341; the guide ball 33 is located inside the receiving groove 341, and a circular clamping plate 331 that fits with the circular clamping groove 342 is connected to the outer wall of the guide ball 33; an opening 333 is provided on the outer wall of the guide ball 33, and a central groove 332 is provided at the center of the inner wall of the guide ball 33, and the central groove 332 is connected to the opening 333, and the upper and lower end surfaces of the central groove 332 are both provided with connected limiting holes 334; a clamping block 321 is connected to the end of the connecting shaft 32 near the guide ball 33, and the clamping block 321 passes through the opening 333. Extending into the interior of the central groove 332, the upper and lower end surfaces of the block 321 located in the interior of the central groove 332 are connected to the limiting shaft 322, and the other end of the limiting shaft 322 extends to the interior of the limiting hole 334; the end of the connecting shaft 32 close to the fixed shaft 31 is provided with an external thread; the outer walls on the left and right sides of the fixed shaft 31 are provided with inwardly recessed threaded holes 312, and the fixed shaft 31 is threadedly connected to the connecting shaft 32 through the threaded holes 312; by rotating the connecting shaft 32, the end extending into the threaded hole 312 is rotated, and the connection is made by threading, which is convenient for adjusting the connecting shaft 32, thereby realizing the distance between the adjusting rollers 34, and adjusting according to the rails 1 of different sizes, which is convenient for the use of the conveying vehicle 2, and the connecting shaft 32 is threadedly connected to the fixed shaft 31, which is convenient for disassembly and installation, replacement and maintenance.

[0028] How it works:

[0029] When in use, first rotate the connecting shaft 32 so that the end extending into the threaded hole 312 rotates, and the connecting shaft 32 is connected by threading, so as to adjust the connecting shaft 32, thereby realizing the distance between the adjusting rollers 34, and adjusting it according to the rails 1 of different specifications and sizes, so as to facilitate the installation of the conveying vehicle 2 on the upper end of the rail 1, start the motor 4, drive the active gear 41, the active gear 41 drives the driven gear 311, and the driven gear 311 drives the fixed shaft 31 to rotate, so as to realize the movement of the roller 34, drive the conveying vehicle 2 to move, cooperate with the use of the driving wheel 5, improve the stability of the conveying vehicle 2 moving on the rail 1, when the conveying vehicle 2 needs to turn, the roller 34 moves according to the direction of turning, drives the guide ball 33 to move, so that the guide ball 33 passes through the set opening 333, which is convenient for moving on the block 321, and the block 321 is limited to realize the turning of the roller 34.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circular rail shuttle steering device, comprising a track (1), characterized in that: The upper end of the track (1) is connected to a conveying vehicle (2), and the lower end of the conveying vehicle (2) is connected to a steering assembly (3), a motor (4) and a plurality of driven wheels (5). The steering assembly (3) comprises a fixed shaft (31), and the outer wall of the fixed shaft (31) is connected to a plurality of bearing sleeves (35) and driven teeth (311). The driven teeth (311) are located between the bearing sleeves (35), and the bearing sleeves (35) are installed at the lower end of the conveying vehicle (2). Both ends of the fixed shaft (31) are connected to adjustable connecting shafts (32), and the other end of the connecting shaft (32) is provided with a roller (34). One end of the connecting shaft (32) away from the fixed shaft (31) is movably connected to a guide ball (33), and the connecting shaft (32) is connected to the roller (34) through the guide ball (33). The output end of the motor (4) is connected to a driving tooth (41), and the driving tooth (41) is connected to the driven tooth (311).

2. A circular rail shuttle steering device as claimed in claim 1, characterized in that: A receiving groove (341) for receiving the guide ball (33) is provided on the outer wall of one side of the roller (34) close to the connecting shaft (32), and a circular clamping groove (342) is provided on the inner wall of the roller (34). The diameter of the circular clamping groove (342) is larger than that of the receiving groove (341), and the circular clamping groove (342) is connected to the receiving groove (341).

3. A circular rail shuttle steering device as claimed in claim 2, characterized in that: The guide ball (33) is located inside the receiving groove (341), and the outer wall of the guide ball (33) is connected to a circular clamping plate (331) that fits with the circular clamping groove (342).

4. A circular rail shuttle steering device as claimed in claim 3, characterized in that: The outer wall of the guide ball (33) is provided with an opening (333), the central part of the inner wall of the guide ball (33) is provided with a central groove (332), the central groove (332) is connected with the opening (333), and the upper and lower end surfaces of the central groove (332) are both provided with communicating limiting holes (334).

5. A circular rail shuttle steering device as claimed in claim 1, characterized in that: One end of the connecting shaft (32) close to the guide ball (33) is connected to a clamping block (321), and the clamping block (321) passes through the opening (333) and extends into the center groove (332). The upper and lower end surfaces of the clamping block (321) located inside the center groove (332) are both connected to a limiting shaft (322), and the other end of the limiting shaft (322) extends to the inside of the limiting hole (334).

6. A circular rail shuttle steering device as claimed in claim 5, characterized in that: An end of the connecting shaft (32) close to the fixed shaft (31) is provided with an external thread.

7. A circular rail shuttle steering device as claimed in claim 6, characterized in that: The outer walls on both sides of the fixed shaft (31) are provided with inwardly recessed threaded holes (312), and the fixed shaft (31) is threadedly connected to the connecting shaft (32) through the threaded holes (312).

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