A heavy-duty nylon wheel assembly for forklifts

Abstract

This application discloses a heavy-duty nylon wheel assembly for forklifts, belonging to the field of wheel structure technology. It provides a lighter forklift heavy-duty nylon wheel assembly with less damage to the ground. The assembly includes a steel hub and a nylon wheel sleeve. The steel hub has an integral and coaxial inner cylinder and rim, with a mating groove on the outer side of the rim. The nylon wheel sleeve includes a pressure-bearing wheel body, the inner wall of which has a mating block suitable for engaging with the mating groove. Both ends of the pressure-bearing wheel body have coaxial limiting rings that contact the end faces of the rim. A plurality of spokes connect the outer side of the inner cylinder to the inner wall of the rim, and these spokes are equidistantly arranged around the axis of the rim. By using a forged steel hub and a low-density nylon wheel sleeve, this application achieves a smaller overall size and weight for the forklift wheel, reducing the overall weight of the forklift while maintaining its load-bearing capacity, thus minimizing road damage during heavy-duty forklift operations.

Description

Technical Field

[0001] This application relates to the field of wheel structure technology, and more particularly to a heavy-duty nylon wheel assembly for forklifts. Background Technology

[0002] To prevent forklifts from tipping over during the transfer of heavy goods, heavy-duty forklifts are required. The goods themselves are heavy, and the forklift wheels need to withstand greater pressure, so they are made larger. This makes heavy-duty forklifts also heavy, which puts greater pressure on the ground and shortens the service life of the transport road surface. Summary of the Invention

[0003] The purpose of this application is to provide a lighter-weight heavy-duty nylon wheel assembly for forklifts that causes less damage to the ground.

[0004] To achieve the above objectives, this application provides a heavy-duty nylon wheel assembly for forklifts: comprising a steel hub and a nylon wheel sleeve, wherein the steel hub has an integral and coaxial inner cylinder and a rim, and a mating groove is provided on the outer side of the rim; the nylon wheel sleeve includes a pressure-bearing wheel body, the inner wall of which has a mating block adapted to engage with the mating groove; and both ends of the pressure-bearing wheel body have coaxial limiting retaining rings that respectively contact the end faces of the rim, thereby improving the tightness of the fit between the nylon wheel sleeve and the steel hub.

[0005] As a preferred embodiment, the outer surface of the rim has a number of mating grooves, which are equidistantly arranged around the axis of the rim. The number and position of the mating blocks on the inner wall of the pressure-bearing wheel correspond to the mating grooves, effectively dispersing the torque transmitted from the steel wheel hub to the nylon wheel sleeve.

[0006] As a preferred embodiment, the outer surface of the pressure-bearing wheel body has several coaxial circumferential friction grooves, which are equidistantly arranged along the axis of the pressure-bearing wheel body to improve the axial friction force between the nylon wheel sleeve and the ground.

[0007] As a preferred embodiment, the outer surface of the pressure-bearing wheel body also has several radial friction grooves, which are equidistantly arranged around the axis of the pressure-bearing wheel body to improve the circumferential friction between the nylon wheel sleeve and the ground.

[0008] As a preferred embodiment, each of the radial friction grooves is parallel to the axis of the pressure-bearing wheel body, thereby improving the grip of the nylon wheel sleeve as it moves forward and backward.

[0009] As a preferred embodiment, the steel hub has a disc at the end where the inner cylinder is aligned with the rim, maintaining the coaxiality of the inner cylinder and the rim.

[0010] As a preferred embodiment, a spoke is connected between the outer side of the inner cylinder and the inner wall of the rim. There are several spokes, which are equidistantly arranged around the axis of the rim. All spokes are also integrated with the wheel disc, so that the steel wheel hub has higher structural strength to bear the weight of the vehicle body and cargo.

[0011] As a preferred embodiment, the end face of the wheel disc facing away from the spokes also has a coaxial reinforcing disc. The end face of the wheel disc has a reinforcing ring located between adjacent spokes. The end face of the reinforcing disc has a connecting hole communicating with the interior of the reinforcing ring. The connecting hole is coaxial with the reinforcing ring. The number and position of the reinforcing ring and the connecting hole are corresponding, which facilitates the bolts used to fix the heavy-duty nylon wheel assembly to pass through and be hidden.

[0012] Compared with the prior art, the beneficial effects of this application are as follows:

[0013] (1) By using forged steel hubs and low-density nylon wheel sleeves, the entire forklift wheel has a smaller volume and weight. While ensuring the forklift's load-bearing capacity, the overall weight of the vehicle is reduced, so that heavy forklifts cause less damage to the road surface when carrying out transport work.

[0014] (2) By using oily nylon wheel sleeves, the friction coefficient of the forklift wheel in contact with the ground is small, so that the nylon wheel sleeve is less damaged by friction from the ground during rotation, which not only extends the service life of the ground, but also extends the service life of the forklift wheel. Attached Figure Description

[0015] Figure 1 This is a first three-dimensional schematic diagram of the overall structure of the heavy-duty nylon wheel assembly for the forklift.

[0016] Figure 2 This is a second three-dimensional schematic diagram of the overall structure of the heavy-duty nylon wheel assembly for the forklift.

[0017] Figure 3 This is a first perspective sectional view of the overall structure of the heavy-duty nylon wheel assembly for the forklift.

[0018] Figure 4 This is a second perspective sectional view of the overall structure of the heavy-duty nylon wheel assembly for the forklift.

[0019] Figure 5 This is a first three-dimensional structural diagram of the steel hub of the heavy-duty nylon wheel assembly for the forklift.

[0020] Figure 6 This is a second three-dimensional structural diagram of the steel hub of the heavy-duty nylon wheel assembly for the forklift.

[0021] Figure 7This is a first three-dimensional structural cross-sectional view of the nylon wheel sleeve of the heavy-duty nylon wheel assembly for the forklift.

[0022] Figure 8 This is a second three-dimensional cross-sectional view of the nylon wheel sleeve of the heavy-duty nylon wheel assembly for the forklift.

[0023] In the diagram: 1. Steel hub; 101. Inner axle cylinder; 102. Wheel rim; 103. Wheel disc; 104. Reinforcing ring; 105. Connecting hole; 106. Wheel spoke; 107. Mating groove; 108. Reinforcing disc; 2. Nylon wheel sleeve; 201. Pressure-bearing wheel body; 202. Mating block; 203. Circumferential friction groove; 204. Radial friction groove; 205. Limiting retaining ring. Detailed Implementation

[0024] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. They should not be construed as limiting the specific protection scope of this application.

[0026] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0027] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0028] like Figure 1-8The heavy-duty nylon wheel assembly for forklifts shown includes a steel hub 1 and a nylon wheel sleeve 2. The steel hub 1 is made of forged steel. The nylon wheel sleeve 2 is injection molded on the outside of the steel hub 1 and fits over the steel hub 1. The steel hub 1 has an integral and coaxial inner cylinder 101 and a rim 102. The inner cylinder 101 is used to fit over the end of the axle. The outer side of the rim 102 has several mating grooves 107, which surround the rim 102. The axes are equidistantly arranged. The nylon wheel sleeve 2 includes a pressure-bearing wheel body 201. The inner wall of the pressure-bearing wheel body 201 has a fitting block 202. The number and position of the fitting blocks 202 on the inner wall of the pressure-bearing wheel body 201 correspond to the fitting groove 107 and fit exactly with the fitting groove 107. The two ends of the pressure-bearing wheel body 201 have coaxial limiting retaining rings 205, which contact the two end faces of the rim 102 respectively, improving the fit between the nylon wheel sleeve 2 and the steel wheel hub 1 and ensuring the structural stability of the entire heavy-duty nylon wheel assembly.

[0029] The outer surface of the pressure-bearing wheel body 201 has several coaxial circumferential friction grooves 203. These circumferential friction grooves 203 are equidistantly arranged along the axis of the pressure-bearing wheel body 201 to increase the axial friction force between the nylon wheel sleeve 2 and the ground and reduce axial slippage. The outer surface of the pressure-bearing wheel body 201 also has several radial friction grooves 204. These radial friction grooves 204 are equidistantly arranged around the axis of the pressure-bearing wheel body 201, and each radial friction groove 204 is parallel to the axis of the pressure-bearing wheel body 201 to increase the friction force between the nylon wheel sleeve 2 and the ground when rotating, thereby increasing the grip of the heavy-duty nylon wheel and reducing slippage during starting and braking.

[0030] The steel hub 1 has a coaxial disc 103 at one end where the inner axle cylinder 101 is aligned with the rim 102. The disc 103, the inner axle cylinder 101, and the rim 102 are integrally formed. Spokes 106 connect the outer side of the inner axle cylinder 101 to the inner wall of the rim 102. There are typically five to eight spokes 106, which are equidistantly arranged around the axis of the rim 102 to ensure the entire nylon wheel gradually lies on its own axis. All spokes 106 are also integrally connected to the disc 103. The entire steel hub 1 is a one-piece structure, manufactured in one piece. The end face of the disc 103 facing away from the spokes 106 also... A coaxial and integrated reinforcing disc 108 is used to increase the thickness of the central part of the disc 103 and improve the structural strength of the disc 103. The end face of the disc 103 has a reinforcing ring 104 located between adjacent spokes 106. The number of reinforcing rings 104 corresponds to the number of spokes 106. The end face of the reinforcing disc 108 is provided with a connecting hole 105 that communicates with the inside of the reinforcing ring 104. The connecting hole 105 is coaxial with the reinforcing ring 104. The number and position of the reinforcing ring 104 and the connecting hole 105 are corresponding. The connecting hole 105 is suitable for a bolt to pass through and connect to the wheel drive output end of the forklift. The end of the bolt is located inside the reinforcing ring 104.

[0031] Working principle: First, the inner cylinder 101, rim 102, disc 103, reinforcing ring 104, and spokes 106 of the steel hub 1 are formed by forging. Then, the mating groove 107 on the outside of the rim 102 and the connecting hole 105 in the reinforcing ring 104 are formed by cutting. Then, the finished steel hub 1 is placed in a mold, and nylon material is injected to wrap the outer periphery of the rim 102. After cooling and forming, the mating block 202 in the bearing wheel body 201 will be tightly embedded in the mating groove 107. Finally, the circumferential friction groove 203 and radial friction groove 204 are cut on the outside of the nylon wheel sleeve 2. The forged steel hub 1 can provide stable support for the nylon wheel sleeve 2 to maintain roundness. The nylon wheel sleeve 2 has a low density, which can not only withstand greater pressure, but also reduce the overall weight of the forklift, reduce the pressure of the forklift on the ground, and can smoothly transport heavy goods.

[0032] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A heavy-duty nylon wheel assembly for forklifts, characterized in that: The device includes a steel hub (1) and a nylon wheel sleeve (2). The steel hub (1) has an integral and coaxial inner cylinder (101) and a rim (102). The outer side of the rim (102) is provided with a mating groove (107). The nylon wheel sleeve (2) includes a pressure-bearing wheel body (201). The inner wall of the pressure-bearing wheel body (201) has a mating block (202) adapted to fit with the mating groove (107). Both ends of the pressure-bearing wheel body (201) have coaxial limiting retaining rings (205) that contact the two end faces of the rim (102) respectively.

2. The heavy-duty nylon wheel assembly for forklifts as described in claim 1, characterized in that: The outer surface of the rim (102) has a number of mating grooves (107), which are equidistantly arranged around the axis of the rim (102). The number and position of the mating blocks (202) on the inner wall of the pressure-bearing wheel body (201) correspond to the mating grooves (107).

3. The heavy-duty nylon wheel assembly for forklifts as described in claim 2, characterized in that: The outer surface of the pressure-bearing wheel body (201) has a plurality of coaxial circumferential friction grooves (203), which are equidistantly arranged along the axis of the pressure-bearing wheel body (201).

4. The heavy-duty nylon wheel assembly for forklifts as described in claim 3, characterized in that: The outer surface of the pressure-bearing wheel body (201) also has a number of radial friction grooves (204), which are equidistantly arranged around the axis of the pressure-bearing wheel body (201).

5. The heavy-duty nylon wheel assembly for forklifts as described in claim 4, characterized in that: Each of the radial friction grooves (204) is parallel to the axis of the bearing wheel body (201).

6. The heavy-duty nylon wheel assembly for forklifts as described in any one of claims 1 to 5, characterized in that: The steel hub (1) has a disc (103) at one end of the inner cylinder (101) that is aligned with the rim (102).

7. The heavy-duty nylon wheel assembly for forklifts as described in claim 6, characterized in that: A spoke (106) is connected between the outer side of the inner cylinder (101) and the inner wall of the rim (102). There are a plurality of spokes (106), which are equidistantly arranged around the axis of the rim (102). All spokes (106) are also integrated with the wheel disc (103).

8. The heavy-duty nylon wheel assembly for forklifts as described in claim 7, characterized in that: The end face of the wheel (103) facing away from the spokes (106) also has a coaxial reinforcing disc (108). The end face of the wheel (103) has a reinforcing ring (104) located between adjacent spokes (106). The end face of the reinforcing disc (108) has a connecting hole (105) communicating with the inside of the reinforcing ring (104). The connecting hole (105) is coaxial with the reinforcing ring (104). The number and position of the reinforcing ring (104) and the connecting hole (105) are corresponding.

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