Split type rim tire mounting device

Abstract

The utility model discloses a split type rim tire mounting device, which belongs to the technical field of vehicle assembling and manufacturing, and comprises a tire expanding mold, a tire pressing component and a linear driver, the tire expanding mold is provided with a guide ring surface, and the diameter of an upper circle formed by the guide ring surface is smaller than that of a lower circle; the tire pressing component comprises an upper seat part, a connecting part and a jacking part, the upper seat part is located above the tire expanding mold, the jacking part is arranged on the periphery of the guide ring surface in a surrounding mode, and the surrounding diameter is larger than the lower circle diameter of the guide ring surface; the linear driver is mounted between the tire expanding mold and the tire pressing component and outputs driving force for the jacking part to axially move towards the lower end of the guide ring surface, and the linear driver is detachably connected with at least one of the tire expanding mold and the tire pressing component. The device has the advantages of low cost, simplicity in use, low failure rate, low operation and maintenance cost, small size, rapidness and high efficiency in operation and the like.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle assembly and manufacturing technology, and in particular relates to a split-type wheel rim tire mount. Background Technology

[0002] The design of the tire mounting system directly impacts tire assembly efficiency, production costs, and product quality. During production, a well-designed mounting system can improve the automation level of tire installation, reduce the complexity of manual operations, and thus increase production efficiency. Furthermore, an optimized mounting structure helps reduce tire wear during installation, improves product consistency and reliability, and reduces after-sales maintenance costs. For tires using tubeless technology, a high-precision mounting system ensures a tight fit between the tire and the rim, improving sealing and reducing rework rates during production, further enhancing overall production efficiency.

[0003] Currently, tire mounting devices are mainly divided into two categories, each with its own shortcomings and deficiencies.

[0004] While highly automated tire loading systems can improve assembly efficiency and reduce manual intervention, their drawbacks are also significant. First, the purchase cost of such equipment is high, requiring substantial upfront investment and increasing the financial burden on companies. Second, the complex structure of these devices, containing numerous precision components, leads to high maintenance and repair costs; malfunctions can cause production line shutdowns, impacting overall production efficiency. Furthermore, these systems typically rely on electric or pneumatic systems, resulting in high energy consumption and increased operating costs over the long term. Additionally, the large size and footprint of automated tire loading systems make them unsuitable for factories with limited space or those requiring flexible production line layouts. More importantly, these systems exhibit poor compatibility with different tire models and specifications, making it difficult to adapt to diverse production needs. This is particularly problematic in manufacturing environments requiring frequent tire type changes, where adjustments are challenging and production flexibility is compromised.

[0005] Another type is tire installation relying entirely on manual operation. While this method offers low equipment costs and simple operation, it also presents several problems. First, manual installation is inefficient, with assembly speeds far slower than automated equipment, making it difficult to meet the demands of large-scale production. Second, this method depends heavily on worker skill; significant variations in installation quality among different workers can lead to decreased product consistency. Furthermore, manual tire installation is time-consuming, labor-intensive, and can cause worker fatigue over time, impacting production efficiency. Additionally, labor costs increase with fluctuations in the labor market, resulting in substantial long-term operating costs. Finally, improper operation during manual installation can easily damage tires or rims, increasing production losses and affecting product quality and after-sales costs.

[0006] In summary, both types of tire mounting devices currently on the market have their shortcomings. Automated equipment is expensive, difficult to maintain, and has poor adaptability, while manual installation methods are inefficient, labor-intensive, and have poor quality stability. Therefore, the key direction for improving tire mounting devices is to reduce costs while increasing automation and optimizing adaptability. Utility Model Content

[0007] In view of the problems of high cost, difficult maintenance, high energy consumption and poor adaptability of existing automated tire loading devices, as well as low efficiency, high labor intensity and poor quality stability of manual tire loading methods, this utility model provides a split rim tire loading device.

[0008] This utility model is implemented as follows: a split-type rim tire attaching device, characterized in that it includes a tire expanding mold, a tire pressing component, and a linear actuator. The tire expanding mold has a guide ring surface, the upper circle diameter of which is smaller than the lower circle diameter. The tire pressing component includes an upper seat, a connecting part, and a pressing part. The upper seat is located above the tire expanding mold, and the pressing part is arranged around the guide ring surface with a surrounding diameter larger than the lower circle diameter of the guide ring surface. The linear actuator is installed between the tire expanding mold and the tire pressing component and outputs a driving force for the pressing part to move axially towards the lower end of the guide ring surface. The linear actuator is detachably connected to at least one of the tire expanding mold and the tire pressing component.

[0009] In the above technical solution, preferably, the top-pressing part is an annular pressure plate surrounding the outer side of the guide ring surface of the tire expanding mold. The annular pressure plate has a lower annular surface for pressing the tire, and the connecting part is a bracket evenly arranged circumferentially around the annular pressure plate, connecting the upper seat and the top-pressing part. This design achieves a stable and reliable tire mounting process by setting an annular pressure plate on the outer side of the guide ring surface of the tire expanding mold and using its lower annular surface to evenly press the tire. Compared with partial pressing methods, this structure can effectively prevent deformation or poor installation caused by uneven tire force, while optimizing the tire expansion guidance, making it more accurately fit the rim, and improving installation accuracy and consistency. In addition, this design simplifies the tire mounting operation, reduces the need for manual adjustment, and improves production efficiency and assembly quality.

[0010] In the above technical solution, preferably, the guide ring surface of the tire expanding mold forms a curved surface from top to bottom. The guide ring surface is combined with the inner edge of the tire and expands downwards through the curved surface to guide the tire. The innovative effect of this curved surface design is mainly reflected in optimizing the tire expansion and installation process. By making the guide ring surface form a curved structure from top to bottom, a smoother guiding effect can be provided during tire expansion, allowing the inner edge of the tire to gradually slide downwards and expand evenly after being subjected to force, thereby avoiding tire deformation or local damage caused by sudden force. In addition, this curved surface helps to reduce the resistance of the tire during movement, improve tire installation efficiency, reduce damage to tire materials, and improve assembly quality and consistency.

[0011] In the above technical solution, preferably, the linear actuator includes an actuator body and a piston rod, the axis of the piston rod is parallel to the axis of the tire expanding mold, and the piston rod is connected to at least one of the tire expanding mold and the tire pressing component through a quick-release joint.

[0012] In the above technical solution, preferably, the quick-release connector includes two axially connected connectors and an actuator for controlling the separation of the two connectors, and the two connectors are respectively connected to the tire expanding mold and the tire pressing component.

[0013] In the above technical solution, preferably, the driver body is installed on the tire expanding mold, and the upper end of the piston rod is connected to the tire pressing component through the quick-release joint.

[0014] In the above technical solution, preferably, the upper end of the tire expanding mold forms an opening, the lower inner side of the tire expanding mold is provided with a bottom plate, the inner side of the opening of the tire expanding mold forms a groove, and the driver body is disposed in the groove and fixedly installed on the bottom plate.

[0015] In the above technical solution, preferably, the upper seat is provided with a handle to be close to the handle, the handle is connected to the actuator, and the actuator is driven by pulling the handle to disengage the two connectors of the quick-release connector.

[0016] This utility model proposes a new split-type rim tire attacher, which serves as an auxiliary device for manual tire attachment. While taking into account the advantages of automation and manual assembly, it overcomes many defects of the existing technology and has multiple advantages and significant effects.

[0017] Firstly, this device combines manual assistance with automation, enabling simple and quick tire assembly. Workers only need to perform simple initial operations to trigger the automated tire mounting process, significantly reducing operational difficulty, reliance on worker skill levels, and improving installation consistency and reliability. Compared to a completely manual method, this device effectively improves assembly efficiency, reduces worker workload, and avoids tire or rim damage due to improper operation, thereby reducing production losses.

[0018] Secondly, this device offers significant advantages in cost control. Compared to traditional highly automated tire-loading equipment, this device has a simpler structure, lower manufacturing costs, and is suitable for factories of all production scales. Due to its streamlined components and simple maintenance, the equipment has a lower failure rate, significantly reducing operating costs and avoiding the risk of production stoppages caused by complex equipment malfunctions. Furthermore, the device is small in size and occupies little space, making it suitable for different production line layouts. It is particularly beneficial for companies that need to flexibly adjust their production modes, improving workshop space utilization and enhancing production adaptability.

[0019] Furthermore, the device excels in ease of operation. Its ergonomic design makes the operation process more intuitive, allowing workers to quickly learn and reduce training costs. Simultaneously, the automated tire loading process is highly efficient and smooth, ensuring a precise fit between the tire and rim, further enhancing product quality stability. Compared to the high energy consumption of traditional automated equipment, this device operates with low energy consumption, effectively saving energy and reducing production and operating costs.

[0020] In summary, this split-type rim tire mounter successfully eliminates the shortcomings of existing technologies by combining the advantages of manual and automated processes. It boasts multiple advantages, including low cost, ease of use, low failure rate, low maintenance cost, small size, and quick and efficient operation. Its application not only improves tire assembly efficiency and reduces enterprise production costs but also optimizes production processes and enhances overall production efficiency, providing an economical, efficient, and reliable solution for vehicle tire assembly, especially for bicycles and electric bicycles. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of Embodiment 1 of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the tire expansion mold in this utility model;

[0023] Figure 3 This is a structural schematic diagram of the tire pressure component in this utility model;

[0024] Figure 4 This is a schematic diagram of the connection structure between the handle and the quick-release connector in Embodiment 1;

[0025] Figure 5 This is a structural schematic diagram of Embodiment 2 of this utility model. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0027] To address the problems of high cost, difficult maintenance, high energy consumption, and poor adaptability of existing automated tire mounting devices, as well as low efficiency, high labor intensity, and poor quality stability of manual tire mounting methods, this utility model provides a split-type rim tire mounter. To further illustrate the structure of this utility model, a detailed description is provided below in conjunction with the accompanying drawings:

[0028] Example 1

[0029] Please see Figure 1 , Figure 2 and Figure 3 A split-type rim tire loading device includes a tire expanding mold 1, a tire pressing component 2, and a linear actuator 3.

[0030] The tire expanding mold has a guide ring surface, with the upper circle diameter smaller than the lower circle diameter. The guide ring surface forms a curved surface from top to bottom, engaging with the inner edge of the tire and expanding downwards through the curved surface. The tire expanding mold is the core guiding component in this split-type rim-mounting tire assembly, primarily used to guide and expand the inner edge of the tire during installation using its curved structure. It employs a tapered guide ring surface design, smaller at the top and larger at the bottom, and can be made of a single piece of stainless steel. As the tire moves downwards along the mold, the gradually expanding curved surface of the guide ring contacts the inner wall of the tire, generating a radial expansion force. This gradually expands the tire's inner diameter to fit the rim size, while simultaneously utilizing the sliding characteristics of the curved surface to reduce frictional resistance between the tire and the mold. This progressive expansion method ensures uniform tire deformation to avoid localized stress concentration and achieves precise alignment between the tire and the rim through physical guidance. The lower diameter of the tire expansion mold is slightly larger than the outer diameter of the rim. When the rim is placed under the mold, the ring surface at the lower end of the mold is aligned with the concentric rim, so that the tire can naturally shrink to the rim surface after being fully expanded, achieving a smooth and seamless sliding fit.

[0031] To achieve better tire mounting results, the curvature of the surface should meet the following conditions: First, the curvature should gradually increase from top to bottom, so that the tire experiences less force during the initial contact phase, making it easier to conform to the guide ring surface. During further expansion, it provides stronger constraint and guidance to ensure smooth tire movement without deviation. Second, the surface should avoid abrupt or drastic changes to ensure uniform force on the tire during expansion, reducing the risk of bouncing or jamming, thereby improving the stability and reliability of the entire tire mounting process.

[0032] The tire pressing component includes an upper seat 2-1, a connecting part 2-2, and a pressing part 2-3. The upper seat is located above the tire expanding mold, and the pressing part is arranged around the guide ring surface with a diameter larger than the lower circle diameter of the guide ring surface. In this embodiment, specifically, the pressing part is an annular pressure plate arranged around the outer side of the guide ring surface of the tire expanding mold. The annular pressure plate has a lower annular surface for pressing the tire. The connecting part is a bracket evenly arranged around the annular pressure plate, connecting the upper seat and the pressing part. The upper seat is a circular plate, and the upper seat, connecting part, and pressing part are an integral component welded from metal.

[0033] The linear actuator is installed between the tire expanding mold and the tire pressing component, and the driving force for the top pressing part to move axially towards the lower end of the guide ring surface. The linear actuator is detachably connected to at least one of the tire expanding mold and the tire pressing component.

[0034] The linear actuator includes an actuator body and a piston rod. The axis of the piston rod is parallel to the axis of the tire expanding mold. The piston rod is connected to at least one of the tire expanding mold and the tire pressing component via a quick-release connector 4. In this embodiment, specifically, the linear actuator is a cylinder, the actuator body is the cylinder body, and the quick-release connector is a quick-connect air hose. The quick-connect air hose not only enables quick disassembly of the piston rod from one of the tire expanding mold and the tire pressing component, but also serves as a connector for quick connection and disconnection of the cylinder to an external air source. When an electric cylinder is selected as the linear actuator, an electrical quick-connect connector can be used, enabling both quick assembly and disassembly while simultaneously switching the electric cylinder's circuit on and off. When a hydraulic cylinder is selected as the linear actuator, a hydraulic quick-connect connector with a hydraulic oil supply line can be used, enabling both quick assembly and disassembly while simultaneously switching the hydraulic cylinder's oil supply line on and off. This method utilizes quick-connect connectors to achieve two goals: first, to transfer energy (airflow, current, liquid flow) into the sealed space; second, to enable quick assembly and disassembly, improving tire loading efficiency; and third, to form a large contact surface for a stable connection, achieving multiple benefits in one step.

[0035] Please see Figure 4The quick-release connector includes two axially connected connectors 4-1 and an actuator 4-2 that controls the separation of the two connectors. The quick-release air hose connector is a standard part that can be purchased externally. The connection method and working principle of the actuator that separates the two connectors are existing known technologies. The actuator is generally an axially movable sleeve. By driving this sleeve, the separation of the two axially connected connectors can be achieved. The two connectors are connected to the tire expanding mold and the tire pressing component, respectively. In this embodiment, there are two cylinders that serve as the actuator body, which are symmetrically installed on the tire expanding mold. That is, the upper end of the piston rod is connected to the tire pressing component through the quick-release connector. Specifically, the upper end of the tire expanding mold forms an opening, and the lower inner side of the tire expanding mold is provided with a base plate. The inner side of the opening of the tire expanding mold forms a cavity. The actuator body is located in the cavity and fixedly installed on the base plate. Specifically, the bottom of the cylinder body is fixed to the base plate by fasteners. It employs two cylinders, with the upper ends of the piston rods of the two cylinders connected to an integral plate. Two quick-release connectors are installed on the integral plate, which can form a channel for air source input and output, delivering air source power when connected.

[0036] The upper part is provided with a handle 5 near a pull handle 6. The pull handle is connected to the actuator, and pulling the pull handle drives the actuator to disengage the two joints of the quick-release connector. The handle is an inverted U-shaped lifting structure fixed to the upper part of the upper part, designed to facilitate the user in lifting the tire pressure component. The pull handle is also an inverted U-shaped structure, located inside the handle. The two vertical rods of the inverted U-shape form vertically movable guide rods that fit into the insertion holes of the upper part, with the lower end extending to the side of the upper part near the quick-release connector. The actuators of the two quick-release connectors are connected to a horizontal drive rod 7, the lower end of which is connected to the lower end of the pull handle. By holding the handle and pulling the pull handle, the actuators of the two quick-release connectors can be pulled upwards. During the lifting of the tire pressure component, the two quick-release connectors are disengaged, achieving rapid separation of the tire pressure component from the linear actuator. An air source assembly 8 for supplying air to the cylinder is installed on the upper part and has a connecting connector. Another connector installed on the piston rod of the cylinder is connected to the air inlet of the cylinder body through a hose, so that the air source can supply air to the cylinder when the two connectors are connected.

[0037] Instructions for using this split-type rim tire mount:

[0038] Place the wheel rim vertically and horizontally on a flat surface. Place the tire expander mold on the rim, coaxial with it. If necessary, apply lubricant to the guide ring surface of the expander mold before mounting the tire onto it. Move the pressing component above the expander mold and connect the linear actuator connector to establish the connection between the pressing component and the expander mold. Activate the linear actuator to create tension between the pressing component and the expander mold. The pressing component's top pressure section presses the tire downwards. Under the expansion and guidance of the guide ring surface, the tire moves towards the outer edge of the rim in a large-diameter shape. The moment it reaches the outer edge of the rim, the expansion of the guide ring surface dissipates, and the tire, under its own elasticity, mounts onto the rim. After mounting, disconnect the pressing component from the expander mold for the next use.

[0039] Example 2

[0040] In this embodiment, the construction or selection of the tire expanding mold, tire pressing component, and linear actuator is the same as in Embodiment 1. The specific difference lies in the installation position of the linear actuator. For details, please refer to [link to Embodiment 1]. Figure 5 The actuator body is mounted on the upper seat, and the piston rod is connected to the tire expanding mold via a quick-release connector. Further, two cylinders are symmetrically mounted on the upper part of the upper seat. The cylinder bodies are bolted to the upper part of the upper seat, and the piston rods of the cylinder bodies extend vertically upwards. The upper end of the piston rod is connected to a pull rod 9, which is a T-shaped pull rod. The upper horizontal bar of the T-shaped pull rod connects to the upper ends of the two piston rods on both sides, and the middle part of the T-shaped pull rod is a downward-extending vertical rod. The lower end of this vertical rod is connected to the tire expanding mold via a quick-release connector. Specifically, a through hole is made on the upper seat for the vertical rod of the T-shaped pull rod to pass through, and a vertical extension rod 10 is installed on the tire expanding mold. The upper end of the extension rod is connected to the vertical rod of the T-shaped pull rod via a quick-release connector. In this embodiment, the linear actuator and all other compatible functional assemblies are integrated and mounted on the tire pressing component.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A split-type rim-mounting device, characterized in that: The device includes a tire expanding mold, a tire pressing component, and a linear actuator. The tire expanding mold has a guide ring surface, the upper circle diameter of which is smaller than the lower circle diameter. The tire pressing component includes an upper seat, a connecting part, and a pressing part. The upper seat is located above the tire expanding mold, and the pressing part is arranged around the guide ring surface with a surrounding diameter larger than the lower circle diameter of the guide ring surface. The linear actuator is installed between the tire expanding mold and the tire pressing component and outputs a driving force to move the pressing part axially towards the lower end of the guide ring surface. The linear actuator is detachably connected to at least one of the tire expanding mold and the tire pressing component.

2. The split-type rim mounting device according to claim 1, characterized in that: The top pressing part is an annular pressure plate surrounding the outer side of the guide ring surface of the tire expanding mold. The annular pressure plate has a lower annular surface for pressing the tire. The connecting part is a bracket that is uniformly arranged circumferentially around the annular pressure plate and connects the upper seat part and the top pressing part.

3. The split-type rim mounting device according to claim 2, characterized in that: The guide ring of the tire expanding mold forms a curved surface from top to bottom. The guide ring is combined with the inner edge of the tire and the tire moves downward through the expansion of the curved surface.

4. The split-type rim mounting device according to claim 3, characterized in that: The linear actuator includes an actuator body and a piston rod, the axis of which is parallel to the axis of the tire expanding mold, and the piston rod is connected to at least one of the tire expanding mold and the tire pressing component via a quick-release joint.

5. The split-type rim mounting device according to claim 4, characterized in that: The quick-release connector includes two axially connected connectors and an actuator for controlling the separation of the two connectors. The two connectors are respectively connected to the tire expanding mold and the tire pressing component.

6. The split-type rim mounting device according to claim 5, characterized in that: The driver body is mounted on the tire expanding mold, and the upper end of the piston rod is connected to the tire pressing component through the quick-release joint.

7. The split-type rim mounting device according to claim 6, characterized in that: The upper end of the tire expanding mold has an opening, the lower inner side of the tire expanding mold has a base plate, the inner side of the opening of the tire expanding mold has a groove, and the driver body is located in the groove and fixedly installed on the base plate.

8. The split-type rim mounting device according to claim 7, characterized in that: The upper part is provided with a handle to be close to the pull handle. The pull handle is connected to the actuator and the actuator is driven by pulling the pull handle to disengage the two connectors of the quick-release connector.

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