Wheel core of industrial battery car

Abstract

The utility model discloses an industrial battery car wheel core which comprises a hub and a wheel shaft, two sets of bearings are arranged on the surface of the wheel shaft, a shaft barrel is arranged on the surfaces of the two sets of bearings, extrusion assemblies are arranged at the positions, close to the two ends, of the surface of the shaft barrel, and the hub is movably connected to the surface of the shaft barrel in a sleeved mode. By arranging the extrusion assembly, the hub is directly arranged on the surface of the shaft barrel in a sleeving mode during operation, the positioning groove corresponds to the extrusion assembly, then the extrusion nut in the extrusion assembly is rotated, the extrusion positioning block is moved out of the limiting groove and clamped into the positioning groove, and then the hub is stably arranged on the surface of the shaft barrel in a sleeving mode; when the hub needs to be separated from the axle barrel and the axle, the extrusion nut is rotated to be away from the extrusion block, then the extrusion positioning block is pushed into the limiting groove through the elastic force of the spring piece to be separated from the positioning groove, and therefore the hub and the axle barrel can be easily separated, and if the axle or the hub is independently damaged, the whole wheel core does not need to be replaced. And the repair and maintenance cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wheels, in particular to an industrial battery wheel core. Background Art

[0002] The wheel core of a battery vehicle is essentially the central part inside the tire of a battery vehicle wheel. It is used in the industrial manufacturing field to provide a device for the rotation of the battery vehicle. This part is mainly responsible for supporting the tire and the device connecting the wheel and the frame. In order to ensure that the wheel can rotate normally, the wheel core is mainly composed of a hub, bearings and axle. The hub is the part for mounting the tire, the bearing is the component that provides smooth rotation of the hub, and the axle plays a supporting role, used to support the bearings and hub, and ensure the stability of the hub.

[0003] The wheel core of an electric bicycle may be damaged after long-term use, so the wheel core needs to be removed from the frame for repair. The bearings and the wheel hub are interference fit together, and the bearings and the axle are also interference fit together. It is difficult to remove the wheel hub from the axle and bearings alone. If the wheel core is damaged, the entire wheel core must be replaced, which greatly increases the repair and maintenance costs.

[0004] Therefore, how to provide an industrial battery car wheel core is a problem that those skilled in the art urgently need to solve. Utility Model Content

[0005] One purpose of the utility model is to provide an industrial battery car wheel core, which solves the problem in the prior art that the wheel hub is connected with the bearing through interference fit, resulting in the difficulty in independently disassembling the wheel axle and the wheel hub.

[0006] According to an embodiment of the utility model, an industrial battery car wheel core includes a wheel hub and an axle, the surface of the wheel axle is provided with two sets of bearings, the surfaces of the two sets of bearings are provided with shaft cylinders, the surfaces of the shaft cylinders are provided with extrusion assemblies near the two ends, the wheel hub is movably sleeved on the surface of the shaft cylinder, and a positioning groove is provided on the inner wall of the wheel hub corresponding to the position of the extrusion assembly. The extrusion assembly includes an extrusion positioning block, which will be stuck in the interior of the positioning groove when squeezed.

[0007] The extrusion assembly includes a limiting groove, an extrusion groove, a beveled surface, an extrusion block, a spring member and an extrusion nut. The limiting groove is arranged on the side of the shaft tube near the end face, the extrusion groove is arranged on the end face of the shaft tube and communicates with the limiting groove, the extrusion positioning block moves inside the limiting groove, the extrusion block moves inside the extrusion groove, the beveled surfaces are respectively arranged on the surface of the extrusion positioning block and the extrusion block at the joint, the beveled surface on the extrusion block is movably connected with the beveled surface on the extrusion positioning block, the extrusion nut is threadedly sleeved on the surface of the wheel axle, one side of the extrusion nut is fitted on the extrusion block, the extrusion positioning block is "convex" shaped, one end of the spring member is fixed on the surface of the extrusion positioning block, and the other end of the spring member is fixed on the inner wall of the limiting groove near the wheel hub.

[0008] A guide groove is provided on the inner wall of the extrusion groove, and a guide block is provided at a position on the surface of the extrusion block corresponding to the guide groove, and the guide block moves inside the positioning groove.

[0009] There are two groups of extrusion assemblies, and the two groups of extrusion assemblies are axially symmetrically arranged with the symmetry axis of the shaft cylinder as the symmetry axis.

[0010] A limiting nut sleeve is provided on one side of the extrusion nut. The limiting nut sleeve is threadedly sleeved on the surface of the wheel axle and movably sleeved on the surface of the shaft cylinder.

[0011] A gasket is movably sleeved on the surface of the wheel shaft between the extrusion nut and the limiting nut sleeve.

[0012] There are six groups of limiting grooves and extrusion grooves in each group of the extrusion components. The six groups of limiting grooves and extrusion grooves are distributed in a ring array with the central axis of the shaft cylinder as the array center.

[0013] The beneficial effects of the utility model are:

[0014] By setting up an extrusion assembly, the wheel hub is directly sleeved on the surface of the shaft cylinder during operation, so that the positioning groove corresponds to the extrusion assembly, and then the extrusion nut in the extrusion assembly is rotated to move the extrusion positioning block out of the limiting groove and fit into the inside of the positioning groove, thereby stably sleeved on the surface of the shaft cylinder. When the wheel hub, shaft cylinder and axle need to be separated, the extrusion nut is rotated to move it away from the extrusion block, and then the extrusion positioning block is pushed into the limiting groove by the elastic force of the spring part to separate it from the positioning groove. In this way, the wheel hub and shaft cylinder can be easily separated, which solves the problem in the prior art that the bearing, wheel hub and axle are interference fit together and it is difficult to disassemble them independently. In this way, if the axle or wheel hub is damaged alone, there is no need to replace the entire wheel core, which greatly reduces the repair and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 This is an overall three-dimensional flow chart of an industrial battery car wheel core proposed by the utility model.

[0017] Figure 2 This is a cross-sectional three-dimensional flow chart of the positions of the wheel axle and the shaft cylinder in the industrial battery wheel core proposed by the utility model.

[0018] Figure 3 This is a cross-sectional three-dimensional flow chart of the position of the extrusion component in the industrial battery car wheel core proposed by the utility model.

[0019] Figure 4 This is a three-dimensional cross-sectional flow chart from the other side showing the position of the extrusion assembly in the industrial battery car wheel core proposed by the present invention.

[0020] The attached figures indicate: 1. wheel hub; 2. wheel axle; 3. bearing; 4. shaft cylinder; 5. extrusion assembly; 6. positioning groove; 7. extrusion positioning block; 8. limiting groove; 9. extrusion groove; 10. beveled surface; 11. extrusion block; 12. spring member; 13. extrusion nut; 14. guide groove; 15. guide block; 16. limiting nut sleeve; 17. gasket. DETAILED DESCRIPTION

[0021] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0022] refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , including a wheel hub 1 and a wheel axle 2, the surface of the wheel axle 2 is provided with two groups of bearings 3, the surfaces of the two groups of bearings 3 are provided with shaft cylinders 4, the shaft cylinders 4 are sleeved on the surfaces of the two groups of bearings 3, and the shaft cylinders 4 are sleeved by the bearings 3. Extrusion components 5 are provided on the surface of the shaft cylinder 4 near both ends, and the number of extrusion components 5 is two groups. The two groups of extrusion components 5 are axially symmetrical with the symmetry axis of the shaft cylinder 4 as the symmetry axis. The wheel hub 1 is movably sleeved on the surface of the shaft cylinder 4, and a positioning groove 6 is provided on the inner wall of the wheel hub 1 corresponding to the position of the extrusion component 5 for clamping the extrusion positioning block 7. In this way, the wheel hub 1 and the extrusion positioning block 7 can be positioned, thereby making the connection between the wheel axle 2, the shaft cylinder 4 and the wheel hub 1 stable. The extrusion component 5 includes an extrusion positioning block 7, which will be stuck in the interior of the positioning groove 6 when squeezed;

[0023] refer to Figure 1、 Figure 2 、 Figure 3 and Figure 4, including a hub 1 and an axle 2, the surface of the axle 2 is provided with two groups of bearings 3, the surfaces of the two groups of bearings 3 are provided with an axis extrusion assembly 5 including a limit groove 8, an extrusion groove 9, a beveled surface 10, an extrusion block 11, a spring member 12 and an extrusion nut 13, and the number of limit grooves 8 and extrusion grooves 9 in each group of the extrusion assembly 5 is six. The six groups of limit grooves 8 and extrusion grooves 9 are distributed in a circular array with the central axis of the shaft cylinder 4 as the array center. The limit groove 8 is opened on the side of the shaft cylinder 4 near the end face, the extrusion groove 9 is opened on the end face of the shaft cylinder 4 and communicates with the limit groove 8. The extrusion positioning block 7 moves inside the limit groove 8, the extrusion block 11 moves inside the extrusion groove 9, the inner wall of the extrusion groove 9 is provided with a guide groove 14, and the surface of the extrusion block 11 is opposite to the limit groove 8. A guide block 15 should be provided at the position of the guide groove 14, and the guide block 15 is movable inside the positioning groove 6. The beveled surfaces 10 are respectively provided on the surfaces where the extrusion positioning block 7 and the extrusion block 11 are attached. The beveled surface 10 on the extrusion block 11 is movably connected with the beveled surface 10 on the extrusion positioning block 7. The extrusion nut 13 is threadedly sleeved on the surface of the wheel axle 2, and one side of the extrusion nut 13 is attached to the extrusion block 11. A limiting nut sleeve 16 is provided on one side of the extrusion nut 13, and the limiting nut sleeve 16 is threadedly sleeved on the surface of the wheel axle 2, and the limiting nut sleeve 16 is movably sleeved on the surface of the shaft tube 4. The surface of the wheel axle 2 is located between the extrusion nut 13 and the limiting nut sleeve 16 and is movably sleeved with a gasket 17. The extrusion positioning block 7 is a "convex" shape, and one side of the spring member 12 The end is fixed on the surface of the extrusion positioning block 7, and the other end of the spring member 12 is fixed on the inner wall of the limiting groove 8 close to the wheel hub 1. The spring member 12 is used to provide an elastic force to the extrusion positioning block 7 so that the extrusion positioning block 7 can be retracted to the inside of the limiting groove 8 when no force is applied. During operation, the wheel hub 1 is first sleeved on the surface of the shaft cylinder 4, and then the extrusion nut 13 is rotated. The rotation of the extrusion nut 13 will drive the extrusion block 11 to move toward the position of the extrusion positioning block 7 to extrude the extrusion positioning block 7. After being squeezed, the extrusion positioning block 7 will move upward inside the limiting groove 8 and extend out of the limiting groove 8. The extrusion positioning block 7 extending out of the limiting groove 8 will be stuck in the inside of the positioning groove 6 to position the wheel hub 1. Under continuous extrusion, the extrusion positioning block 7 will stably support it. The wheel hub 1 is provided with a spacer 17, which is used to hold the wheel hub 1 in place and the shaft cylinder 4 is used to hold the wheel hub 1 in place.

[0024] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An industrial battery wheel core, characterized in that: The invention comprises a wheel hub (1) and a wheel axle (2), wherein the surface of the wheel axle (2) is provided with two groups of bearings (3), the surfaces of the two groups of bearings (3) are provided with shaft cylinders (4), and the surfaces of the shaft cylinders (4) are provided with extrusion assemblies (5) near both ends thereof, the wheel hub (1) is movably sleeved on the surface of the shaft cylinder (4), and a positioning groove (6) is provided on the inner wall of the wheel hub (1) corresponding to the position of the extrusion assembly (5), and the extrusion assembly (5) includes an extrusion positioning block (7), and the extrusion positioning block (7) is stuck into the interior of the positioning groove (6) when being squeezed.

2. The industrial battery wheel core according to claim 1, characterized in that: The extrusion assembly (5) includes a limiting groove (8), an extrusion groove (9), an oblique surface (10), an extrusion block (11), a spring member (12) and an extrusion nut (13). The limiting groove (8) is provided on the side of the shaft cylinder (4) near the end face. The extrusion groove (9) is provided on the end face of the shaft cylinder (4) and is mutually connected with the limiting groove (8). The extrusion positioning block (7) moves inside the limiting groove (8). The extrusion block (11) moves inside the extrusion groove (9). The oblique surfaces (10) are respectively provided on the extrusion positioning block ( The surface of the extrusion block (7) and the extrusion block (11) is in contact with each other, the beveled surface (10) on the extrusion block (11) is movably connected to the beveled surface (10) on the extrusion positioning block (7), the extrusion nut (13) is threadedly sleeved on the surface of the wheel axle (2), one side of the extrusion nut (13) is in contact with the extrusion block (11), the extrusion positioning block (7) is in a "convex" shape, one end of the spring member (12) is fixed to the surface of the extrusion positioning block (7), and the other end of the spring member (12) is fixed to the inner wall of the limiting groove (8) near the wheel hub (1).

3. The industrial battery wheel core according to claim 2, characterized in that: A guide groove (14) is provided on the inner wall of the extrusion groove (9), and a guide block (15) is provided on the surface of the extrusion block (11) at a position corresponding to the guide groove (14). The guide block (15) moves inside the positioning groove (6).

4. The industrial battery wheel core according to claim 3, characterized in that: The number of the extrusion assemblies (5) is two groups, and the two groups of extrusion assemblies (5) are arranged in an axisymmetric manner with the axis of symmetry of the shaft cylinder (4) as the axis of symmetry.

5. The industrial battery wheel core according to claim 4, characterized in that: A limiting nut sleeve (16) is provided on one side of the extrusion nut (13), the limiting nut sleeve (16) is threadedly sleeved on the surface of the wheel axle (2), and the limiting nut sleeve (16) is movably sleeved on the surface of the shaft cylinder (4).

6. The industrial battery wheel core according to claim 5, characterized in that: A gasket (17) is movably sleeved on the surface of the wheel shaft (2) between the extrusion nut (13) and the limiting nut sleeve (16).

7. The industrial battery wheel core according to claim 2, characterized in that: The number of the limiting grooves (8) and the extrusion grooves (9) in each group of the extrusion components (5) is six, and the six groups of limiting grooves (8) and the extrusion grooves (9) are distributed in a ring array with the central axis of the shaft cylinder (4) as the array center.

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