A wheel hub carousel

Abstract

The utility model discloses a kind of hub transfer trolleys, including frame, and be located on the frame bone core fixed structure and hub fixed structure, the bone core fixed structure includes several fixed steel pipes, outer bracing structure is equipped on the fixed steel pipe, the outer bracing mechanism has contraction state and expansion state;When being in contraction state, bone core can be inserted or removed into the fixed steel pipe;When being in expansion state, the outer bracing mechanism extends outward and is in abutment with bone core, to limit the movement of bone core.The utility model aims at solving the technical problem existing in prior art, provide a kind of hub transfer trolley, it can eliminate the gap between bone core and fixed steel pipe and rigid collision, greatly reduce scratch, knock and implicit injury, improve product yield.

Description

Technical Field

[0001] This utility model relates to the field of vehicle parts technology, specifically to a wheel hub turnover vehicle. Background Technology

[0002] As a key component of automobiles, the manufacturing process of wheel hubs typically involves several stages, including casting (or forging) a blank (called a "core" or "wheel blank") and subsequent machining, painting, and assembly. Within large production plants, transfer carts are essential logistics tools for transporting wheel cores and assembled finished wheel hubs to connect different processes.

[0003] Currently, the wheel hub transfer carts widely used in factories are typically designed with a focus on transportation efficiency and space utilization. For transporting the hub cores, a common practice is to weld or fix multiple vertical or inclined fixed steel pipes to the frame of the transfer cart. Operators fit the center hole of the wheel hub core onto these fixed steel pipes, using a multi-layer design to achieve centralized storage and transfer of multiple cores.

[0004] However, this existing transportation method has a significant and long-standing drawback: there is usually a certain clearance between the core and the fixed steel pipe to ensure efficient insertion and removal. But when the vehicle starts, brakes, turns, or passes through bumpy areas of the factory, the core will experience frequent and varying degrees of rigid impact and friction with the fixed steel pipe, which serves as the load-bearing structure, due to inertia. Utility Model Content

[0005] 1. Technical problem to be solved by the utility model

[0006] The purpose of this utility model is to solve the technical problems existing in the prior art and provide a wheel hub turnover cart that can eliminate the gap and rigid collision between the core and the fixed steel pipe, greatly reduce scratches, bumps and hidden damage, and improve the product yield.

[0007] 2. Technical Solution

[0008] To solve the above problems, the technical solution provided by this utility model is as follows:

[0009] A wheel hub turnover vehicle includes a frame, a core fixing structure and a wheel hub fixing structure disposed on the frame. The core fixing structure includes a plurality of fixed steel pipes, and an external support structure is provided on the fixed steel pipes. The external support structure has a contracted state and an expanded state. When it is in the contracted state, the core can be inserted into or removed from the fixed steel pipes. When it is in the expanded state, the external support structure extends outward and abuts against the core to restrict the movement of the core.

[0010] Preferably, the external support structure includes a set of external support rods axially arranged on the fixed steel pipe, and a control device for driving the external support rods to open or close synchronously.

[0011] Preferably, the outer support rod is located at the top of the fixed steel pipe, and the bottom of the outer support rod is rotatably connected to the top of the fixed steel pipe.

[0012] Preferably, an operating rod is fixedly connected to the bottom of the external support rod, the operating rod extends to the axis of the fixed steel pipe, and the control structure includes an airbag disposed inside the fixed steel pipe and an air pump for controlling the inflation and deflation of the airbag. When the airbag inflates, it pushes the operating rod outward.

[0013] Preferably, the outer support rod is connected to the fixed steel pipe by an elastic element, and the elastic element drives the outer support rod to remain parallel to the fixed steel pipe.

[0014] Preferably, the external support rod is connected to the fixed steel pipe via a hinged joint.

[0015] Preferably, the wheel hub fixing structure includes two fixed circular tubes horizontally spaced apart at the top of the vehicle frame.

[0016] Preferably, a steel wire is provided above the center of the two fixed circular tubes, and several partitions are slidably connected on the steel wire.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0019] This invention utilizes an expandable external support structure to actively grip the core, eliminating gaps and rigid collisions between it and the fixed steel pipes. This significantly reduces scratches, bumps, and hidden damage, improving product yield. An air pump controls the synchronous movement of all fixed steel pipes, enabling rapid fixing and release of cores in batches, greatly improving loading and unloading efficiency and reducing worker workload. The airbag pressure can be adjusted to accommodate cores of different sizes and weights, offering good versatility. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a wheel hub turnover vehicle proposed in an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the core fixing structure in a wheel hub turnover vehicle according to an embodiment of the present invention;

[0022] 10. Core fixing structure; 101. Fixing steel pipe; 102. External support structure; 1021. External support rod; 1022. Operating rod; 1023. Airbag; 1024. Hinge seat; 20. Hub fixing structure; 201. Fixing round tube; 202. Steel wire; 203. Partition plate. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and do not limit the scope of protection of this utility model.

[0024] It should be noted that when a component is referred to as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component. Furthermore, when a component is considered to be "fixedly connected" to another component, the connection can be detachable or non-detachable, such as through socketing, snap-fitting, integral molding, welding, etc., which are achievable in the prior art and will not be elaborated further here. When a component is perpendicular or approximately perpendicular to another component, it means that the ideal state is perpendicularity, but due to manufacturing and assembly effects, there may be a certain degree of perpendicularity error. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only and do not represent the only possible implementation.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] The terms "first" and "second" in this utility model do not represent specific quantities or orders, but are merely used to distinguish names.

[0027] Combined with appendix Figure 1 and Figure 2 This embodiment describes a hub turnover vehicle, such as... Figure 1As shown, the wheel hub turnover vehicle mainly includes a frame welded from structural steel. The bottom of the frame is equipped with casters (not shown) for easy movement. The frame has a two-layer structure: the lower layer has a core fixing structure 10 for fixing and transporting the wheel hub core; the upper layer has a wheel hub fixing structure 20 for storing and transporting assembled finished wheel hubs.

[0028] Implementation method of the bone core fixation structure 10:

[0029] The core fixing structure 10 includes multiple fixing steel pipes 101 that are vertically or obliquely welded to the lower frame of the vehicle frame, and each fixing steel pipe 101 has an external support structure 102 at its upper end.

[0030] like Figure 2 As shown, the external support structure 102 includes: three external support rods 1021, which are evenly arranged around the top periphery of the fixed steel pipe 101; a hinge seat 1024, through which the bottom of the external support rods 1021 is rotatably connected to the top of the fixed steel pipe 101, so that the external support rods 1021 can open outward or close inward like the ribs of an umbrella; and an operating rod 1022, on the inner bottom side (i.e., the side near the axis of the fixed steel pipe 101) of each external support rod 1021, which is fixed and vertically connected to a downward operating rod 1022. All operating levers 1022 extend to the axial position of the fixed steel pipe 101; the elastic element, in this embodiment, is specifically a torsion spring 1025 sleeved on the hinge shaft of the hinge seat 1024. The torque of the torsion spring 1025 always drives the outer support rod 1021 to retract inward, at least keeping it in a contracted state parallel to the outer wall of the fixed steel pipe 101; the control device, in this embodiment, adopts a pneumatic scheme, which includes an air bladder 1023 installed in the internal cavity of the fixed steel pipe 101, and an air pump (not shown in the figure) installed on the frame. The air pump is connected to the air bladders 1023 in all the fixed steel pipes 101 through an air pipe (not shown in the figure). When the air pump inflates the air bladder 1023, the air bladder 1023 expands upward.

[0031] Furthermore, there are two feasible options for the installation position of the external support rod 1021: one is to set it on the top of the fixed steel pipe 101, and the other is to set it on the side wall of the fixed steel pipe 101. Preferably, the external support rod 1021 is set on the top of the fixed steel pipe 101. This is because if the hinge seat 1024 and the external support rod 1021 are set on the side wall of the fixed steel pipe 101, when the external support structure 102 is in the retracted state, the effective outer diameter of the fixed steel pipe 101 at that location will inevitably increase.

[0032] The working process of the bone core fixation structure 10 is as follows:

[0033] Placing the hub core: In the initial state, the airbag 1023 is not inflated, and the outer support rod 1021 is in a retracted state under the action of the torsion spring 1025. At this time, the operator can easily fit the center hole of the hub core onto the fixed steel pipe 101 from top to bottom.

[0034] Fixing the bone core: After the bone core is placed in place, the air pump is activated to inflate a certain amount of gas into the airbag 1023. The airbag 1023 inflates, pushing upwards the lower ends of all operating rods 1022. Since the operating rods 1022 are fixedly connected to the outer support rods 1021, the upward movement of the operating rods 1022 forces the bottom of the outer support rods 1021 to rotate outwards around the hinge seat 1024, thereby overcoming the force of the torsion spring 1025 and causing the top of the outer support rods 1021 to open outwards, entering an expanded state. The outer top of the opened outer support rods 1021 will tightly abut against the top inner wall of the center hole of the bone core, limiting and holding the bone core in both horizontal and vertical directions, effectively preventing it from shaking and impacting the fixing steel tube 101 during transportation.

[0035] Removing the core: When unloading is required, the air pump releases the gas inside the airbag 1023, causing the airbag 1023 to contract. The restoring force of the torsion spring 1025 pulls the bottom of the outer support rod 1021 inward to return it to its contracted state, thereby releasing the grip on the core. The operator can then easily remove the core upward.

[0036] Implementation method of hub fixing structure 20:

[0037] like Figure 1 As shown, the wheel hub fixing structure 20 is located on the upper layer of the vehicle frame. It includes two horizontally spaced fixed round tubes 201 welded to the vehicle frame. A steel wire 202 is stretched taut above the center of the two fixed round tubes 201. Multiple partitions 203 are threaded onto the steel wire 202. These partitions 203 can slide on the steel wire 202, forming a storage space between adjacent partitions 203. The partitions 203 can effectively prevent adjacent wheel hubs from colliding during transportation. The partitions 203 are preferably hollow plastic plates, which have a certain cushioning effect and are relatively lightweight.

[0038] The method of using the hub fixing structure 20 is as follows: Adjust the spacing of the partitions 203 according to the size of the finished hub. Place the rim of the finished hub 50 on the two fixed round tubes 201, with the center hole of the hub located below the steel wire 202. Adjacent hubs 50 are separated by the partitions 203 to avoid mutual collisions during transportation.

[0039] This invention utilizes an expandable external support structure 102 to actively hold the core, eliminating gaps and rigid collisions between it and the fixed steel pipe 101. This significantly reduces scratches, bumps, and hidden damage, improving product yield. An air pump controls the synchronous movement of all fixed steel pipes 101, enabling rapid fixing and release of cores in batches, greatly improving loading and unloading efficiency and reducing worker workload. The airbag pressure can be adjusted to accommodate cores of different sizes and weights, offering good versatility.

[0040] It should be noted that, theoretically, the external support rod 1021 can also be directly connected to the top of the fixed steel pipe 101 via an elastic element (such as a compression spring or tension spring), and the contraction and expansion of the elastic element can be used to achieve the desired opening and closing. However, this method has significant drawbacks: the direction of movement of the external support rod 1021 cannot be effectively constrained, and its trajectory is uncertain. When subjected to compression from the core or vehicle bumps, the external support rod 1021 may experience unexpected swaying or torsion, rather than pure radial movement. This can lead to uneven and unreliable tension on the core, significantly reducing the fixation effect, and may even scratch the inner hole of the core due to point contact.

[0041] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A wheel hub turnover vehicle, characterized in that: The system includes a frame, and a core fixing structure and a hub fixing structure mounted on the frame. The core fixing structure includes several fixed steel pipes, and an external support structure is provided on the fixed steel pipes. The external support structure has a contracted state and an expanded state. When it is in the contracted state, the core can be inserted into or removed from the fixed steel pipes. When it is in the expanded state, the external support structure extends outward and abuts against the core to restrict the movement of the core.

2. The wheel hub turnover vehicle according to claim 1, characterized in that: The external support structure includes a set of external support rods axially arranged on the fixed steel pipe, and a control device for driving the external support rods to open or close synchronously.

3. A wheel hub turnover vehicle according to claim 2, characterized in that: The external support rod is located at the top of the fixed steel pipe, and the bottom of the external support rod is rotatably connected to the top of the fixed steel pipe.

4. A wheel hub turnover vehicle according to claim 3, characterized in that: An operating rod is fixedly connected to the bottom of the external support rod. The operating rod extends to the axis of the fixed steel pipe. The control device includes an airbag disposed inside the fixed steel pipe and an air pump for controlling the inflation and deflation of the airbag. When the airbag inflates, it pushes the operating rod outward.

5. A wheel hub turnover vehicle according to any one of claims 2-4, characterized in that: The external support rod is connected to the fixed steel pipe by an elastic element, and the elastic element drives the external support rod to remain parallel to the fixed steel pipe.

6. A wheel hub turnover vehicle according to claim 5, characterized in that: The external support rod is connected to the fixed steel pipe via a hinged joint.

7. A wheel hub turnover vehicle according to claim 1, characterized in that: The wheel hub fixing structure includes two fixed round tubes that are horizontally spaced apart on the top of the vehicle frame.

8. A wheel hub turnover vehicle according to claim 7, characterized in that: A steel wire is provided above the center of the two fixed circular tubes, and several partitions are slidably connected to the steel wire.

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