Adjustable tricycle hub

Abstract

The utility model discloses an adjustable tricycle hub which comprises a main shaft, connecting seats are symmetrically and integrally formed at the two ends of the main shaft, main spoke discs are fixedly connected to the outer sides of the connecting seats, main spoke holes are formed in the main spoke discs, auxiliary spoke discs are arranged on the connecting seats in a sliding and sleeving mode, and auxiliary spoke holes are formed in the auxiliary spoke discs. The auxiliary spoke disc is arranged on the connecting base in a sliding and sleeving mode, tooth grooves are evenly formed in the inner ring of the auxiliary spoke disc, outer meshing teeth are evenly arranged on the outer side of the connecting base, a spacer ring is arranged between the main spoke disc and the auxiliary spoke disc, an axial limiting ring is further arranged on the outer side of the connecting base in a sliding and sleeving mode, and the axial limiting ring is fixed to the connecting base through a locking screw. And circumferential positioning is achieved through meshing of the tooth grooves and the outer meshing teeth, axial limiting of the distance rings and the axial limiting rings is matched, the angle of the auxiliary spoke disc can be adjusted by disassembling the locking screws, then the dislocation state of the main spoke holes and the auxiliary spoke holes is changed, and the inclination angle and the pre-tightening force of the spokes are flexibly adjusted.

Description

Technical Field

[0001] This utility model relates to the field of tricycle parts technology, and in particular to an adjustable tricycle hub. Background Technology

[0002] In a tricycle drivetrain, the hub, as the core component connecting the wheel and the frame, primarily supports the wheelset, transmits power, and coordinates with the braking system. Its structure typically includes key components such as the spindle and spoke discs. The spoke holes on the spoke discs are used to thread the spokes to connect to the rim, ensuring the integrity and stability of the wheelset. In existing tricycle hub technology, the spoke discs are mostly a one-piece fixed structure, with the spoke holes on the main and auxiliary spoke discs relatively fixed in position, making angle adjustment impossible. This fixed design results in an unchangeable tilt angle and preload when the spokes pass through the spoke holes, leading to a single rigidity and elasticity characteristic of the wheelset, making it difficult to adapt to different usage scenarios.

[0003] Therefore, those skilled in the art have provided an adjustable tricycle hub to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an adjustable tricycle hub.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An adjustable tricycle hub includes a main shaft with symmetrical and integrally formed connecting seats at both ends. A main spoke disc is fixedly sleeved on the outer side of the connecting seat, and the main spoke disc has main spoke holes evenly distributed in a ring array on it.

[0007] A secondary spoke disc is slidably sleeved on the side of the connecting seat near the main shaft. The secondary spoke disc has secondary spoke holes evenly distributed in a ring array, and the inner ring of the secondary spoke disc has tooth grooves evenly distributed. The outer side of the connecting seat has external meshing teeth that mesh with the tooth grooves evenly distributed.

[0008] A spacer ring is provided between the main spoke disc and the secondary spoke disc. An axial limiting ring is also slidably sleeved on the outer side of the connecting seat. The axial limiting ring is fixedly connected to the connecting seat by a locking screw, and the axial limiting ring is tightly fitted to the end of the secondary spoke disc near the main shaft.

[0009] Preferably, the outer side of the axial limiting ring is provided with a plurality of threaded locking screws arranged in a ring array, and the connecting seat is provided with a matching threaded groove for each locking screw.

[0010] Preferably, the main spoke disk has a plurality of first weight-reducing holes distributed in a circular array, and the secondary spoke disk has a plurality of second weight-reducing holes distributed in a circular array.

[0011] Preferably, a plurality of connecting ears arranged in a ring array are fixedly provided on the outer side of the connecting seat near the outer end face, and the connecting ears are provided with mounting holes.

[0012] Preferably, the inner side of the connecting seat is provided with a bearing mounting position for installing a bearing, and the inner diameter of the spindle is smaller than the inner diameter of the bearing mounting position.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention slides the secondary spoke disc onto the connecting seat and uses the meshing of the tooth groove and the external meshing teeth to achieve circumferential positioning. With the axial limiting of the spacer ring and the axial limiting ring, the angle of the secondary spoke disc can be adjusted by removing the locking screws, thereby changing the misalignment state of the main spoke hole and the secondary spoke hole. This allows for flexible adjustment of the spoke tilt angle and preload, enabling the wheelset to adapt to different rigidity or elasticity requirements in various scenarios. The locking screws distributed in a ring array can apply locking force evenly, ensuring axial limiting stability and preventing axial movement of the secondary spoke disc. The first weight-reducing hole of the main spoke disc and the second weight-reducing hole of the secondary spoke disc achieve lightweighting while ensuring structural strength, reducing riding energy consumption. Overall, this invention solves the problem of fixed spoke hole positions in traditional hubs, which cannot flexibly adapt to various usage scenarios. Attached Figure Description

[0015] To illustrate the technical solutions in the embodiments of the present invention or the prior art more specifically and intuitively, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0016] Figure 1 This is a schematic diagram of the cross-sectional structure of the flower drum proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the main spoke disc structure proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the secondary spoke disc structure proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the external meshing tooth mounting structure proposed in this utility model;

[0020] Figure 5 The present utility model proposes Figure 1 Enlarged structural diagram at point A in the middle;

[0021] Figure 6 This is a schematic diagram of the connecting ear structure proposed in this utility model.

[0022] In the diagram: 1. Main spindle; 2. Connecting seat; 3. Main spoke disc; 31. Main spoke hole; 32. First weight reduction hole; 4. Secondary spoke disc; 41. Secondary spoke hole; 42. Secondary weight reduction hole; 43. Gear groove; 5. External meshing tooth; 6. Spacer ring; 7. Axial limiting ring; 8. Locking screw; 9. Connecting lug; 91. Mounting hole; 10. Bearing mounting position. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figure 1-6 An adjustable tricycle hub includes a main shaft 1, with connecting seats 2 integrally formed at both ends of the main shaft 1, and a main spoke disc 3 fixedly sleeved on the outer side of the connecting seat 2, and main spoke holes 31 evenly distributed in a ring array on the main spoke disc 3.

[0025] A secondary spoke disk 4 is slidably sleeved on the side of the connecting seat 2 near the main shaft 1. The secondary spoke disk 4 has secondary spoke holes 41 evenly distributed in a ring array, and the inner ring of the secondary spoke disk 4 has tooth grooves 43 evenly distributed. The outer side of the connecting seat 2 has external meshing teeth 5 that mesh with the tooth grooves 43.

[0026] A spacer ring 6 is provided between the main spoke disc 3 and the secondary spoke disc 4. An axial limiting ring 7 is also slidably sleeved on the outer side of the connecting seat 2. The axial limiting ring 7 is fixedly connected to the connecting seat 2 by a locking screw 8, and the axial limiting ring 7 is tightly fitted to the end of the secondary spoke disc 4 near the main shaft 1.

[0027] Using the above technical solution, the connecting seats 2, integrally formed at both ends of the main shaft 1, provide stable support for the overall structure; the main spoke disc 3 is fixedly sleeved on the connecting seat 2, and the secondary spoke disc 4 is slidably sleeved and meshes with the external meshing teeth 5 through the tooth groove 43, achieving circumferential positioning. At the same time, the angle can be adjusted by sliding out of the mesh, which, together with the relative position change of the main spoke hole 31 and the secondary spoke hole 41, can adapt to the needs of different spoke weaving methods; by adjusting the relative misalignment of the main spoke hole 31 and the secondary spoke hole 41, the tilt angle and preload when the spoke passes through the two holes can be changed; the spacer ring 6 and the axial limiting ring 7 are fixed by the locking screw 8, which precisely limits the axial displacement of the secondary spoke disc 4 and ensures the stability of the structure during operation.

[0028] The outer side of the axial limiting ring 7 has multiple threaded locking screws 8 arranged in a ring array, and the connecting seat 2 has a matching threaded groove for each locking screw 8.

[0029] By adopting the above technical solution, the multiple locking screws 8 distributed along the annular array on the outer side of the axial limiting ring 7 cooperate with the threaded groove on the connecting seat 2 to apply locking force evenly, avoiding local deformation caused by excessive force on a single screw; the annular array distribution makes the axial clamping force of the axial limiting ring 7 on the secondary spoke disc 4 more balanced, preventing the secondary spoke disc 4 from axially moving during riding vibration, and improving the fastening reliability of the structure.

[0030] The main spoke disk 3 has multiple first weight reduction holes 32 distributed in a ring array, and the secondary spoke disk 4 has multiple second weight reduction holes 42 distributed in a ring array.

[0031] Using the above technical solutions, the first weight reduction hole 32 on the main spoke disc 3 and the second weight reduction hole 42 on the secondary spoke disc 4 are both distributed in a circular array. While ensuring the overall structural strength of the spoke disc, the overall weight of the hub is effectively reduced, and the ineffective energy consumption during riding is reduced.

[0032] Multiple connecting ears 9 arranged in a ring array are fixedly provided on the outer side of the connector 2 near the outer end face, and mounting holes 91 are provided on the connecting ears 9.

[0033] Using the above technical solution, multiple connecting ears 9 on the outer side of the connecting seat 2 near the outer end face are arranged in a ring array, and the mounting holes 91 opened therein can be adapted to the connection requirements of transmission components such as brakes.

[0034] The inner side of the connecting seat 2 is provided with a bearing mounting position 10 for installing bearings, and the inner diameter of the spindle 1 is smaller than the inner diameter of the bearing mounting position 10.

[0035] Using the above technical solution, the bearing mounting position 10 is used to install the matching bearing, and a stepped structure is formed at the connection between the bearing and the inner side of the spindle 1. This stepped structure can axially limit the end of the bearing.

[0036] Working principle:

[0037] The connecting seats 2 at both ends of the main shaft 1 serve as the basic load-bearing structure. The main spoke disc 3 is fixedly sleeved on the connecting seat 2, and the secondary spoke disc 4 is slidably sleeved on the connecting seat 2 and achieves circumferential positioning by meshing with the external meshing teeth 5 through the tooth groove 43. The spacer ring 6 cooperates with the axial limiting ring 7 and is fixed by the locking screw 8 to limit the axial displacement of the secondary spoke disc 4. During adjustment, the locking screw 8 is removed to allow the axial limiting ring 7 to slide, and the secondary spoke disc 4 rotates after disengaging. Re-engaging and fixing can change the misalignment state of the main spoke hole 31 and the secondary spoke hole 41, thereby adapting to different spoke installation requirements. The connecting lug 9 is used to connect transmission components such as brakes. Through the coordinated cooperation of various structures, the transmission and functional adjustment of the wheel set are realized.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An adjustable tricycle hub, comprising a main shaft (1), characterized in that, The main shaft (1) has symmetrical connecting seats (2) at both ends, and the main spoke disk (3) is fixedly sleeved on the outside of the connecting seat (2). The main spoke disk (3) has main spoke holes (31) evenly distributed in a ring array on it. A secondary spoke disk (4) is slidably sleeved on the side of the connecting seat (2) near the main shaft (1). The secondary spoke disk (4) is evenly provided with secondary spoke holes (41) arranged in a ring array. The inner ring of the secondary spoke disk (4) is evenly provided with tooth grooves (43). The outer side of the connecting seat (2) is evenly provided with external meshing teeth (5) that mesh with the tooth grooves (43). A spacer ring (6) is provided between the main spoke disc (3) and the secondary spoke disc (4). An axial limiting ring (7) is also slidably sleeved on the outer side of the connecting seat (2). The axial limiting ring (7) is fixedly connected to the connecting seat (2) by a locking screw (8), and the axial limiting ring (7) is tightly fitted to the end of the secondary spoke disc (4) near the main shaft (1).

2. The adjustable tricycle hub according to claim 1, characterized in that, The outer side of the axial limiting ring (7) is provided with a plurality of threaded locking screws (8) arranged in a ring array, and the connecting seat (2) is provided with a matching threaded groove for each locking screw (8).

3. The adjustable tricycle hub according to claim 1, characterized in that, The main spoke disk (3) has a plurality of first weight-reducing holes (32) distributed along a ring array, and the secondary spoke disk (4) has a plurality of second weight-reducing holes (42) distributed along a ring array.

4. The adjustable tricycle hub according to claim 1, characterized in that, The outer side of the connector (2) is provided with a plurality of connector ears (9) arranged in a ring array near the outer end face, and the connector ears (9) are provided with mounting holes (91).

5. An adjustable tricycle hub according to claim 1, characterized in that, The inner side of the connecting seat (2) is provided with a bearing mounting position (10) for installing bearings, and the inner diameter of the main shaft (1) is smaller than the inner diameter of the bearing mounting position (10).

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