Auxiliary wheel structure for four-way shuttle vehicle and four-way shuttle vehicle

Abstract

This utility model discloses an auxiliary wheel structure for a four-way shuttle and a four-way shuttle, relating to the field of four-way shuttles. The auxiliary wheel structure for the four-way shuttle includes auxiliary wheels rotatably mounted on one side of the main wheel of the vehicle body. Each main wheel has an auxiliary wheel on one side with the same direction of travel. The distance between the auxiliary wheel and the main wheel at the same installation position is equal to the distance between two child wheels. It also includes a mounting frame, in which the auxiliary wheels are rotatably mounted in the mounting groove of the mounting frame. The auxiliary wheels are double-row roller structures, using rubber wheels with deep groove ball bearings. There is a support component between the auxiliary wheels and the mounting frame. There is a telescopic component between the arrangement plate and the bottom of the mounting groove to adjust the extension distance of the auxiliary wheels. The diameter of a single auxiliary wheel is smaller than the diameter of the main wheel. The four-way shuttle includes a vehicle body, and the above-mentioned auxiliary wheel structure is provided on one side of the main wheel of the vehicle body. By setting auxiliary wheels on one side of the main wheel, this application enables the four-way shuttle to pass smoothly over obstacles even when driven by the main wheel, improving the vehicle's passability and smoothness of travel.

Description

Technical Field

[0001] This utility model relates to the field of four-way shuttles, and in particular to an auxiliary wheel structure for a four-way shuttle and a four-way shuttle. Background Technology

[0002] In the field of industrial logistics and warehousing transportation, four-way shuttles, as a highly efficient automated handling equipment, have been widely used and developed rapidly in recent years.

[0003] Currently, in the design and manufacture of four-way shuttle vehicles, specific wheel configurations are typically used to enable the vehicle to smoothly traverse obstacles such as hurdles. In existing technology, two child wheels are generally installed at the same location, and the distance between the two child wheels is designed to be greater than the width of the hurdle to ensure smooth passage when the child wheels drive the vehicle. Meanwhile, considering factors such as drive method and structural design, only one master wheel is installed at the same location, and the vehicle's drive control primarily relies on the child wheels.

[0004] However, existing technologies have significant drawbacks. Since most current technologies rely solely on the drive of the secondary wheel, and only one primary wheel is installed at the same location, vehicles struggle to navigate obstacles when driven by the primary wheel. This limits the driving method and passability of four-way shuttles, failing to meet the demands of complex working conditions.

[0005] In summary, how to enable a four-way shuttle to successfully pass over obstacles even when driven by the mother wheel is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide an auxiliary wheel structure for a four-way shuttle and a four-way shuttle, which effectively solves the problem that the four-way shuttle has difficulty passing through obstacles when the mother wheel is driven, and enables it to pass through obstacles smoothly when the mother wheel is driven.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A scooter includes auxiliary wheels rotatably mounted on the body on one side of a main wheel. Each main wheel has an auxiliary wheel on one side. The auxiliary wheels travel in the same direction as the main wheels. The distance between the auxiliary wheel and the main wheel at the same mounting position is equal to the distance between two child wheels at the same mounting position.

[0008] Preferably, it further includes: A mounting bracket is provided on the vehicle body at each of the auxiliary wheels. The mounting bracket has a mounting slot, and the auxiliary wheel is rotatably positioned within the mounting slot.

[0009] Preferably, each of the mounting slots contains at least one of the auxiliary wheels.

[0010] Preferably, each of the auxiliary wheels is a double-row roller structure and is mounted on the corresponding mounting bracket via a pivot.

[0011] Preferably, the auxiliary wheel is a rubber wheel with a deep groove ball bearing.

[0012] Preferably, a support assembly is provided between the auxiliary wheel and the mounting bracket, the support assembly comprising: The arrangement plate is fixedly installed in the mounting groove; A bracket is provided on the arrangement plate, the bracket is clamped on both sides of the auxiliary wheel, and is rotatably connected to the auxiliary wheel.

[0013] Preferably, a telescopic component is provided between the arrangement plate and the bottom of the mounting groove to adjust the distance by which the auxiliary wheel extends out of the mounting groove.

[0014] Preferably, the telescopic component includes: A telescopic cylinder is disposed between the bottom of the mounting groove and the arrangement plate. The arrangement plate slides on the side wall of the mounting groove. The telescopic cylinder is used to drive the arrangement plate to slide along the sliding track on the side wall of the mounting groove.

[0015] Preferably, the diameter of a single auxiliary wheel is smaller than the diameter of the main wheel.

[0016] A four-way shuttle includes a master wheel mounted on the vehicle body, and the vehicle body has an auxiliary wheel structure for a four-way shuttle as described above, located on one side of the master wheel, which cooperates with the master wheel.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: The above technical solution involves setting an auxiliary wheel on one side of the main wheel of the vehicle body, which solves the problem that the four-way shuttle vehicle has difficulty passing through obstacles when the main wheel is driven, and enables it to pass through obstacles smoothly when the main wheel is driven. In the above technical solution, the auxiliary wheel travels in the same direction as the main wheel, which can improve the stability of the four-way shuttle. In the above technical solution, the distance between the auxiliary wheel and the main wheel is equal to the distance between the two child wheels at the same installation position, thus optimizing the wheel set configuration and ensuring the smoothness of the main wheel drive through the obstacle. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the auxiliary wheel structure being installed on the vehicle body in this embodiment.

[0020] Figure 2 This is a partial schematic diagram of the mounting slot in this embodiment.

[0021] Explanation of reference numerals in the attached figures: 1. Vehicle body; 2. Mounting bracket; 3. Main wheel; 4. Auxiliary wheel; 5. Sub-wheel; 21. Layout board; 22. Support frame; 31. Mounting slot. Detailed Implementation

[0022] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. 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 scope of protection of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The core of this utility model is to provide an auxiliary wheel structure for a four-way shuttle vehicle.

[0026] Another core aspect of this utility model is to provide a four-way shuttle vehicle, including the aforementioned auxiliary wheel structure for a four-way shuttle vehicle.

[0027] like Figure 1One specific embodiment of the auxiliary wheel structure for the four-way shuttle shown includes an auxiliary wheel 4 rotatably mounted on the body 1 on one side of the main wheel 3. Each main wheel 3 has an auxiliary wheel 4 on one side. The auxiliary wheel 4 travels in the same direction as the main wheel 3. The distance between the auxiliary wheel 4 and the main wheel 3 at the same installation position is equal to the distance between the two daughter wheels 5 at the same installation position.

[0028] Specifically, the four-way shuttle includes a sub-rail running car body and a main rail running car body. The sub-rail running car bodies are located on two opposite sides of the car body 1, while the main rail running car bodies are located on the other two opposite sides of the car body 1. Figure 1 For example, the horizontal axis consists of two sets of sub-rail running car bodies, and the vertical axis consists of two sets of main rail running car bodies. On each set of sub-rail running car bodies, both ends are equipped with sub-wheel running wheel sets via a rotating shaft and drive structure (the rotating shaft and drive structure are standard technology for four-way shuttle cars, so they will not be elaborated here; it is only known that the drive structure drives the rotating shaft to rotate, thereby driving the sub-wheel running wheel sets). Each sub-wheel running wheel set contains two sub-wheels 5, which are synchronously driven and can be synchronously transmitted via a synchronous belt. There is a gap between the central shafts of the two sub-wheels 5, which is larger than the distance between the thresholds, thus facilitating the passage of the sub-wheels 5 through the thresholds.

[0029] On the main rail traveling car body, both ends are equipped with main wheel sets via axles and drive structures (the drive structure is similar to that of the child wheels, and will not be described in detail here). Each main wheel set contains a main wheel 3 and an auxiliary wheel 4. The main wheel 3 and auxiliary wheel 4 within the same set can be connected by a transmission or set independently; in this embodiment, independent setting is the main feature. The main wheel 3 is located on the inner side of the main wheel set, while the auxiliary wheel 4 is located on the outer side. The distance between the main wheel 3 and auxiliary wheel 4 in the same set is equal to or similar to the distance between the two child wheels 5 in the same set; in this embodiment, they are equal.

[0030] The aforementioned auxiliary wheel structure for the four-way shuttle, by setting an auxiliary wheel 4 on one side of the main wheel 3 and adjusting the distance between the auxiliary wheel 4 and the main wheel 3 to be equal to the distance between the auxiliary wheel 4 and the two child wheels 5, allows the four-way shuttle to smoothly pass over obstacles even when driven by the main wheel 3, just like when driven by the child wheels 5. This solves the problem of difficulty in passing over obstacles when driven by the main wheel in the prior art, and greatly improves and enhances the driving method and passing performance of the four-way shuttle.

[0031] Based on any of the above embodiments, the above-mentioned four-way shuttle auxiliary wheel structure also includes a mounting frame 2, wherein the mounting frame 2 is located on the vehicle body 1 at each auxiliary wheel 4, and the mounting frame 2 has a mounting groove 31, in which the auxiliary wheel 4 is rotatably disposed.

[0032] Specifically, refer to Figure 2 The mounting frame 2 includes a mounting slot 31. The mounting slot 31 is a space created on the mounting frame 2 to accommodate the auxiliary wheel 4. It is generally designed according to the size and shape of the auxiliary wheel 4, usually a rectangular slot, but other shapes such as circular slots are also possible. The mounting frame 2 is fixed to one side of the main wheel running vehicle body. It can be welded or integrally formed. The bottom side of the mounting frame 2 is hollowed out, leaving only the shell, effectively avoiding increasing the overall weight of the vehicle body 1. The auxiliary wheel 4 is rotatably configured within the mounting slot 31. The auxiliary wheel 4 can be rotated via a shaft set within the mounting slot 31. The diameter of a single auxiliary wheel 4 is smaller than the diameter of the main wheel 3, meaning the auxiliary wheel 4 adopts a small wheel structure. It is located on the same horizontal plane as the main wheel 3, effectively ensuring the running stability of the main wheel 3. At the same time, the small wheel structure effectively avoids occupying a large space in the vehicle body 1, thus adapting to different specifications of four-way shuttle vehicles.

[0033] Furthermore, a support assembly is provided between the auxiliary wheel 4 and the mounting frame 2. The support assembly includes a layout plate 21 and a bracket 22. The layout plate 21 is fixedly installed in the mounting groove 31. The bracket 22 is installed on the layout plate 21 and is clamped on both sides of the auxiliary wheel 4 and is rotatably connected to the auxiliary wheel 4.

[0034] For details, please refer to Figure 2 To improve the stability of the auxiliary wheel 4 during installation, a support assembly is provided within the mounting groove 31. This support assembly includes a mounting plate 21 and a bracket 22. The mounting plate 21 is welded to one side wall of the mounting groove 31, and the bracket 22 is inclinedly positioned on one side of the mounting plate 21. The bracket 22 consists of two clamping plates, with a rotating shaft for installing the auxiliary wheel 4 fixed between them. The rotating shaft passes through the axle of the auxiliary wheel 4, and the lower surface of the auxiliary wheel 4 is on the same horizontal plane as the lower surface of the mother wheel 3. The mounting plate 21 is fixed within the mounting groove 31. It can be made of metal, such as steel, which offers good strength and stability, or high-strength plastic to reduce overall weight. The mounting plate 21 provides a basic platform for the installation and support of the auxiliary wheel 4. The bracket 22 is located on the mounting plate 21. The bracket 22 is generally made of metal, such as aluminum alloy, which offers light weight and high strength, or stainless steel to improve corrosion resistance. The bracket 22 is fixed to the arrangement plate 21 by bolts or welding, which supports and positions the auxiliary wheel 4 and ensures that the auxiliary wheel 4 can rotate stably in the mounting groove 31.

[0035] In some other embodiments, a telescopic component (optional, not shown in the accompanying drawings) is provided between the arrangement plate 21 and the bottom of the mounting groove 31 to adjust the distance by which the auxiliary wheel 4 extends out of the mounting groove 31.

[0036] Specifically, a telescopic assembly for moving the arrangement plate 21 is provided between the bottom of the mounting groove 31 and the arrangement plate 21. To facilitate the normal operation of the telescopic assembly, the arrangement plate 21 and the mounting groove 31 are connected by sliding, that is, the arrangement plate 21 is slidably set on the inner wall of the mounting groove 31. The telescopic assembly drives the arrangement plate 21 to slide on the inner wall of the mounting groove 31, thereby adjusting the distance of the auxiliary wheel 4 extending out of the mounting groove 31, so as to adapt to the mother wheel of different sizes. The telescopic assembly, the mounting frame 2 and the auxiliary wheel 4 can be manufactured by welding and installed on one side of the mother wheel 3 in different four-way shuttle cars, so as to achieve the adaptation of the mother wheel in different four-way shuttle cars in conjunction with the telescopic assembly.

[0037] Furthermore, the telescopic assembly includes a telescopic cylinder, which is located between the bottom of the mounting groove 31 and the arrangement plate 21. The arrangement plate 21 slides on the side wall of the mounting groove 31, and the telescopic cylinder is used to drive the arrangement plate 21 to slide along the sliding track on the side wall of the mounting groove 31.

[0038] Specifically, the telescopic cylinder is fixed vertically downwards in the mounting groove 31. Its fixed end can be fixed to the bottom of the mounting groove 31 by welding or bolts, and its output end can be fixedly connected to the arrangement plate 21 by bolts. Thus, the telescopic cylinder's extension and retraction drives the arrangement plate 21 to slide. The telescopic cylinder can also be replaced by an electric push rod, which can also achieve the extension and retraction function, and the control is more precise. Since the arrangement plate 21 is a vertical plate, in order to facilitate the connection between the telescopic cylinder and the arrangement plate 21, a mounting part perpendicular to the arrangement plate 21 can be extended from the side of the arrangement plate 21 away from the auxiliary wheel 4. The mounting part abuts against the output end of the telescopic cylinder.

[0039] Optionally, the mounting bracket 2 is provided with a baffle at the sliding end of the arrangement plate 21. The baffle can block the arrangement plate 21 when the telescopic cylinder moves the arrangement plate 21 to the sliding end. A proximity switch can be provided on the side of the baffle close to the arrangement plate 21, and a contact block that cooperates with the proximity switch is provided on the arrangement plate 21. The proximity switch is also electrically connected to an audible and visual alarm. When the contact block abuts against the proximity switch, the audible and visual alarm is triggered to prompt the operator to move the arrangement plate 21 to the end, thereby controlling the telescopic cylinder to stop working.

[0040] Based on any of the above embodiments, the auxiliary wheel 4 is a rubber wheel with a deep groove ball bearing. The rubber wheel 4 has good elasticity and wear resistance, and the deep groove ball bearing ensures smoother rotation of the auxiliary wheel 4. The auxiliary wheel 4 can also be made of polyurethane material, which also has good performance.

[0041] Based on any of the above embodiments, each mounting slot 31 contains at least one auxiliary wheel 4. Here, two auxiliary wheels 4 are taken as an example. The arrangement of multiple auxiliary wheels 4 further enhances the ability to pass over obstacles. When encountering wider or higher obstacles, multiple auxiliary wheels 4 provide more support points and friction, allowing the four-way shuttle to pass more smoothly. The arrangement of multiple auxiliary wheels 4 increases the auxiliary support force, improves the stability and reliability of the four-way shuttle when driven by the main wheel, further optimizes the four-way shuttle's passing performance, and better meets usage requirements under complex working conditions, representing a more significant improvement compared to existing technologies.

[0042] In some other embodiments, each auxiliary wheel 4 is a double-row roller structure and is mounted on a corresponding mounting bracket 2 via a pivot. The double-row roller structure makes the auxiliary wheel 4 more stable when rolling and better able to withstand pressure and friction.

[0043] The implementation principle of this embodiment is as follows: By setting an auxiliary wheel 4 on one side of the main wheel 3 and reasonably setting the distance between the auxiliary wheel 4 and the main wheel 3 so that it is equal to the distance between the auxiliary wheel 4 and the two child wheels 5, the four-way shuttle can pass through the obstacle smoothly when driven by the main wheel 3, just like when driven by the child wheels 5. The setting of the mounting frame 2, support components and telescopic components ensures the stable installation and flexible adjustment of the auxiliary wheel 4, improves the passability and adaptability of the four-way shuttle, solves the problem of the main wheel drive being difficult to pass through the obstacle in the prior art, and greatly improves and enhances the driving method and passability of the four-way shuttle.

[0044] This application further discloses a four-way shuttle, including the aforementioned auxiliary wheel structure for a four-way shuttle. The structure of this four-way shuttle is consistent with existing four-way shuttles and will not be described again here. Applying this auxiliary wheel structure to the four-way shuttle enables it to smoothly pass over obstacles when driven by the main wheel 3, expanding the driving methods of the four-way shuttle and improving its passability and adaptability under complex working conditions. Compared with traditional four-way shuttles, it better meets the needs of industrial logistics and warehousing transportation, representing an innovation and improvement over existing four-way shuttle technology.

[0045] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An auxiliary wheel structure for a four-way shuttle, characterized in that, It includes an auxiliary wheel (4) rotatably mounted on the vehicle body (1) on one side of the main wheel (3). Each main wheel (3) has an auxiliary wheel (4) on one side. The auxiliary wheel (4) travels in the same direction as the main wheel (3). The distance between the auxiliary wheel (4) and the main wheel (3) at the same installation position is equal to the distance between the two child wheels (5) at the same installation position.

2. The auxiliary wheel structure for a four-way shuttle as described in claim 1, characterized in that, Also includes: Mounting bracket (2) is provided on the vehicle body (1) at each of the auxiliary wheels (4). The mounting bracket (2) has a mounting groove (31) and the auxiliary wheel (4) is rotatably disposed in the mounting groove (31).

3. The auxiliary wheel structure for a four-way shuttle as described in claim 2, characterized in that, Each of the mounting slots (31) contains at least one of the auxiliary wheels (4).

4. The auxiliary wheel structure for a four-way shuttle as described in claim 2, characterized in that, Each of the auxiliary wheels (4) is a double-row roller structure and is mounted on the corresponding mounting bracket (2) via a pivot.

5. The auxiliary wheel structure for a four-way shuttle according to claim 4, characterized in that, The auxiliary wheel (4) is a rubber wheel with a deep groove ball bearing.

6. The auxiliary wheel structure for a four-way shuttle according to claim 2, characterized in that, A support assembly is provided between the auxiliary wheel (4) and the mounting bracket (2), the support assembly comprising: The arrangement plate (21) is fixedly installed in the mounting groove (31); A bracket (22) is provided on the arrangement plate (21). The bracket (22) is clamped on both sides of the auxiliary wheel (4) and is rotatably connected to the auxiliary wheel (4).

7. The auxiliary wheel structure for a four-way shuttle according to claim 6, characterized in that, A telescopic component is provided between the arrangement plate (21) and the bottom of the mounting groove (31) to adjust the distance by which the auxiliary wheel (4) extends out of the mounting groove (31).

8. The auxiliary wheel structure for a four-way shuttle according to claim 7, characterized in that, The telescopic component includes: A telescopic cylinder is provided between the bottom of the mounting groove (31) and the arrangement plate (21). The arrangement plate (21) slides on the side wall of the mounting groove (31). The telescopic cylinder is used to drive the arrangement plate (21) to slide along the sliding track on the side wall of the mounting groove (31).

9. The auxiliary wheel structure for a four-way shuttle according to any one of claims 1-8, characterized in that, The diameter of a single auxiliary wheel (4) is smaller than the diameter of the main wheel (3).

10. A four-way shuttle vehicle, comprising a master wheel mounted on the vehicle body, characterized in that, The vehicle body is provided with an auxiliary wheel structure for a four-way shuttle as described in any one of claims 1-9, located on one side of the main wheel, which cooperates with the main wheel.

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