Hub and flywheel integrated ratchet wheel aluminum hub

Abstract

The utility model discloses a ratchet wheel aluminum hub with a hub and a flywheel integrated, and relates to the related technical field of hubs. The left side of the hub shell is provided with a left side cover for limiting the left side of the hub shell; the left side of the left side cover is provided with a left fixing nut; the right side of the hub shell is provided with an accommodating chamber I; a sleeve sleeved outside the bearing rod is arranged in the accommodating chamber I; the outer side of the pawl is sleeved with a built-in ring, the outer wall of the built-in ring abuts against the inner wall of the first containing cavity, a tooth-connected ratchet wheel matched with the pawl is arranged on the right side of the hub shell, a flywheel is integrally formed on the tooth-connected ratchet wheel, and an oil seal is arranged between the outer side of the tooth-connected ratchet wheel and the right side of the hub shell. A right side cover for limiting the right side of the tooth-connected ratchet wheel is arranged on the right side of the tooth-connected ratchet wheel, and a right fixing nut is arranged on the right side of the right side cover. The structure is convenient for later assembly, the overall importance is reduced, and the light weight is realized.

Description

Technical Field

[0001] The utility model belongs to the relevant technical field of bicycle parts, and particularly relates to a ratchet aluminum hub with a hub and a flywheel integrated into one. Background Art

[0002] Bicycles, also known as bicycles or bikes, are usually two-wheeled small land vehicles. People ride on the bicycles and use pedals as power. It is a green and environmentally friendly means of transportation. Bicycles can be used as an environmentally friendly means of transportation for travel and travel; more and more people use bicycles as fitness equipment for cycling and cycling. Bicycles have evolved from the earliest means of transportation to the current leisure and sports equipment. People pay more and more attention to the weight of vehicles and hope that the weight is relatively light.

[0003] A bicycle generally includes 25 parts including frame, tires, pedals, brakes, chains, hubs, flywheels, etc., and none of its basic parts can be missing. The hub, commonly known as the "hub barrel", is the barrel outside the axle that connects to the spokes, and is usually called the axle skin. The hub is an important part of a bicycle. In the traditional structure, the ratchet on the hub and the flywheel are generally connected together with a tooth-thread locking connection, which results in the need to install the flywheel after completing the steps of installing the hub, resulting in inconvenient installation. In addition, the component structure is relatively large, which undoubtedly increases the overall weight and fails to achieve the purpose of reducing the weight of the entire vehicle. Utility Model Content

[0004] The utility model aims to provide a ratchet aluminum hub with a hub and a flywheel integrated therein, which solves the problem that the existing installation between the hub and the flywheel has many installation parts, is inconvenient to install, increases the overall weight, and cannot achieve weight reduction for the entire vehicle.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a ratchet aluminum hub with a hub and a flywheel integrated, comprising a bearing rod and a hub shell sleeved on the outside of the bearing rod, a left side cover for limiting the left side of the hub shell is arranged on the left side of the hub shell, a left fixing nut is arranged on the left side of the left side cover, a accommodating chamber one is arranged on the right side of the hub shell, a sleeve sleeved on the outside of the bearing rod is arranged in the accommodating chamber one, a pawl is arranged outside the sleeve, an inner ring is sleeved on the outer side of the pawl, the outer wall of the inner ring abuts against the inner wall of the accommodating chamber one, a toothed ratchet matched with the pawl is arranged on the right side of the hub shell, a flywheel is integrally formed on the toothed ratchet, an oil seal is arranged between the outside of the toothed ratchet and the right side of the hub shell, a right side cover for limiting the right side of the toothed ratchet is arranged on the right side of the toothed ratchet, and a right fixing nut is arranged on the right side of the right side cover.

[0007] Preferably, in order to facilitate positioning, a limiting groove is provided inside the right side of the toothed ratchet, and an inner card which is sleeved on the outside of the bearing rod is provided in the limiting groove.

[0008] Preferably, the toothed ratchet includes a ratchet body, a circle of positioning groove one is arranged on the outer side of the ratchet body, a retaining ring is arranged on the inner side of the oil seal and is clamped in the positioning groove one, and an accommodating chamber four is arranged on the inner side of the ratchet body, and two bearings three which are sleeved on the bearing rod are arranged in the accommodating chamber four.

[0009] Preferably, in order to improve the limiting effect, an annular limiting step is further provided in the limiting groove, and a convex ring abutting against the annular limiting step is provided on the outer side of the right side cover.

[0010] Preferably, a second accommodating chamber is provided on the left side of the hub shell, and a bearing one sleeved on the bearing rod is provided in the second accommodating chamber. A third accommodating chamber is also provided on the right side of the hub shell relative to the left side of the first accommodating chamber, and a bearing two sleeved on the bearing rod is provided in the third accommodating chamber.

[0011] Preferably, a circle of positioning groove 2 is arranged on the outer side of the pawl, and a retaining spring for positioning the pawl is arranged in the positioning groove 2.

[0012] Preferably, in order to prevent dust from entering the interior of the hub shell and affecting the rotation of the internal bearing rod, a left dust cover is provided between the left cover and the left side of the hub shell, a positioning groove three is provided on the left side of the hub shell, a positioning ring one which is clamped in the positioning groove three is provided on the inner side of the left dust cover, a right dust cover is provided between the right cover and the right side of the toothed ratchet, a positioning groove four is provided on the right side of the toothed ratchet, and a positioning ring two which is clamped in the positioning groove four is provided on the left side of the left dust cover.

[0013] The utility model has the following beneficial effects:

[0014] 1. This structure integrates the toothed ratchet and the flywheel into one piece, so there is no need to use a toothed component to lock the flywheel on the toothed ratchet in the later stage, which reduces the installation steps of the components and makes the installation more convenient. In addition, with fewer components, the overall weight is relatively reduced, and lightweight is finally achieved.

[0015] 2. A hidden pawl is arranged inside the right side of the hub shell, and the pawl directly cooperates with the toothed ratchet, which shortens the overall length of the entire bearing rod external component, and the installation of the entire structure is relatively simpler and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the internal structure of a ratchet aluminum hub with a hub and flywheel integrated in Example 1;

[0017] Figure 2 for Figure 1 A magnified image of point A;

[0018] Figure 3 for Figure 1 The enlarged view of point B;

[0019] Figure 4 This is a schematic diagram of the internal structure of a ratchet aluminum hub with a hub and flywheel integrated in Example 2;

[0020] Figure 5 for Figure 4 Enlarged view of point C;

[0021] Figure 6 for Figure 4 Enlarged view of point D.

[0022] Reference numerals:

[0023] Bearing rod 1, hub shell 2, left side cover 3, left fixing nut 4, accommodating chamber 1 5, sleeve 6, pawl 7, built-in ring 8, toothed ratchet 9, oil seal 10, right side cover 12, right fixing nut 13, limiting groove 14, inner card 15, ratchet body 901, positioning groove 1 16, retaining ring 17, accommodating chamber 4 18, bearing 3 19, annular limiting step 20, convex ring 21, accommodating chamber 3 22, bearing 1 23, bearing 2 24, positioning groove 2 25, retaining spring 26, left side dust cover 27, positioning groove 3 28, positioning ring 1 29, right side dust cover 30, positioning groove 4 31, positioning ring 2 32, accommodating chamber 2 33. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0025] See also Figure 1-3As shown, the present embodiment discloses a ratchet aluminum hub with a hub and a flywheel integrated therein, comprising a bearing rod 1, a hub shell 2 sleeved outside the bearing rod 1, a left side cover 3 for limiting the left side of the hub shell 2 is arranged on the left side of the hub shell 2, a left fixing nut 4 is arranged on the left side of the left side cover 3, an accommodating chamber 5 is arranged on the right side of the hub shell 2, a sleeve 6 sleeved outside the bearing rod 1 is arranged in the accommodating chamber 5, a ratchet 7 is arranged outside the sleeve 6, and a ratchet 7 is arranged on the ratchet An inner ring 8 is sleeved on the outer side of 7, and the outer wall of the inner ring 8 is against the inner wall of the accommodating chamber 5. A toothed ratchet 9 cooperating with the pawl 7 is arranged on the right side of the hub shell 2, and a flywheel 11 is integrally formed on the toothed ratchet 9. An oil seal 10 is arranged between the outside of the toothed ratchet 9 and the right side of the hub shell 2. A right side cover 12 for limiting the right side of the toothed ratchet 9 is arranged on the right side of the toothed ratchet 9, and a right fixing nut 13 is arranged on the right side of the right side cover 12.

[0026] Preferably, in order to facilitate positioning, a limiting groove 14 is provided inside the right side of the toothed ratchet 9, and an inner clamp 15 which is sleeved on the outside of the bearing rod 1 is provided in the limiting groove 14. In order to improve the limiting effect, an annular limiting step 20 is also provided in the limiting groove 14, and a convex ring 21 which abuts against the annular limiting step 20 is provided on the outer side of the right side cover 12. The above-mentioned structural arrangement utilizes the inner clamp 15 to limit the position of the toothed ratchet 9, thereby avoiding the problem of horizontal jumping during the rotation of the toothed ratchet 9, and further realizes the limiting effect of the toothed ratchet 9 in the horizontal direction by cooperating with the convex ring 21 on the right side cover 12 and the annular limiting step 20.

[0027] Preferably, the toothed ratchet 9 includes a ratchet body 901, a circle of positioning groove 16 is provided on the outer side of the ratchet body 901, a retaining ring 17 is provided on the inner side of the oil seal 10 and is clamped in the positioning groove 16, a receiving chamber 4 18 is provided on the inner side of the ratchet body 901, two bearings 3 19 sleeved on the bearing rod 1 are provided in the receiving chamber 4 18, a receiving chamber 2 33 is provided on the left side of the hub shell 2, a bearing 23 sleeved on the bearing rod 1 is provided in the receiving chamber 2 33, and a receiving chamber 3 22 is further provided on the right side of the hub shell 2 relative to the left side of the receiving chamber 5, a bearing 2 24 sleeved on the bearing rod 1 is provided in the receiving chamber 3 22, and by adding bearings outside the bearing rod 1 and inside the corresponding hub shell 2, it is ensured that the rotation of the bearing rod 1 is not affected by the external structure.

[0028] A second positioning groove 25 is arranged outside the pawl 7, and a retaining spring 26 for positioning the pawl 7 is arranged inside the second positioning groove 25. The retaining spring 26 is arranged to limit the pawl 7 outside the bearing rod 1 to avoid random horizontal movement.

[0029] This structure integrates the toothed ratchet 9 and the flywheel 11 into one piece, and there is no need to use additional toothed components to lock the flywheel 11 on the toothed ratchet 9 in the later stage, which reduces the steps of installing the components and makes the installation more convenient. Moreover, with fewer components, the overall weight is relatively reduced. At the same time, a hidden pawl 7 is provided inside the right side of the hub shell 2, and the pawl 7 directly cooperates with the toothed ratchet 9, shortening the overall length of the external components of the entire bearing rod 1. In addition, the installation of the entire structure is relatively simpler and more convenient. With fewer components, the overall weight is relatively reduced, and lightweight is ultimately achieved. Example 2

[0030] See also Figure 4 Figure 5 Figure 6 As shown, the present embodiment discloses a ratchet aluminum hub with a hub and a flywheel integrated therein. Preferably, in order to prevent dust from entering the interior of the hub shell 2 and affecting the rotation of the internal bearing rod, a left dust cover 27 is provided between the left cover 3 and the left side of the hub shell 2, a positioning groove three 28 is provided on the left side of the hub shell 2, a positioning ring one 29 which is clamped in the positioning groove three 28 is provided on the inner side of the left dust cover 27, a right dust cover 30 is provided between the right cover 12 and the right side of the toothed ratchet 9, a positioning groove four 31 is provided on the right side of the toothed ratchet 9, and a positioning ring two 32 which is clamped in the positioning groove four 31 is provided on the left side of the left dust cover 27. In the present embodiment, by adding a left dust cover 27 on the left side of the hub shell 2 and adding a right dust cover 30 on the right side of the toothed ratchet 9, dust can be further prevented from entering the interior of the hub shell 2 and affecting the rotation of the internal bearing rod. This can further prevent foreign matter from entering and ensure its service life.

[0031] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A ratchet aluminum hub with a hub and a flywheel integrated therein, comprising a bearing rod (1), a hub shell (2) sleeved outside the bearing rod (1), a left side cover (3) for limiting the left side of the hub shell (2) being arranged on the left side of the hub shell (2), and a left fixing nut (4) being arranged on the left side of the left side cover (3), characterized in that: A accommodating chamber (5) is provided on the right side of the hub shell (2), a sleeve (6) sleeved on the outside of the bearing rod (1) is provided in the accommodating chamber (5), a pawl (7) is provided outside the sleeve (6), an inner ring (8) is sleeved on the outer side of the pawl (7), the outer wall of the inner ring (8) abuts against the inner wall of the accommodating chamber (5), a toothed ratchet (9) cooperating with the pawl (7) is provided on the right side of the hub shell (2), a flywheel (11) is integrally formed on the toothed ratchet (9), an oil seal (10) is provided between the outside of the toothed ratchet (9) and the right side of the hub shell (2), a right side cover (12) for limiting the right side of the toothed ratchet (9) is provided on the right side of the toothed ratchet (9), and a right fixing nut (13) is provided on the right side of the right side cover (12).

2. The ratchet aluminum hub with integrated hub and flywheel according to claim 1, characterized in that: A limiting groove (14) is arranged inside the right side of the toothed ratchet (9), and an inner clamp (15) sleeved on the outside of the bearing rod (1) is arranged inside the limiting groove (14).

3. A ratchet aluminum hub with a hub and flywheel integrated into one according to claim 1 or 2, characterized in that: The toothed ratchet (9) comprises a ratchet body (901), a circle of positioning grooves (16) are arranged on the outer side of the ratchet body (901), a snap ring (17) is arranged on the inner side of the oil seal (10) and is clamped in the positioning grooves (16), and a receiving chamber (18) is arranged on the inner side of the ratchet body (901), and two bearings (19) are arranged in the receiving chamber (18) and are sleeved on the bearing rod (1).

4. The ratchet aluminum hub with integrated hub and flywheel according to claim 2, characterized in that: An annular limiting step (20) is also provided in the limiting groove (14), and a convex ring (21) is provided on the outer side of the right side cover (12) to abut against the annular limiting step (20).

5. A ratchet aluminum hub with a hub and flywheel integrated into one according to claim 1, 2 or 4, characterized in that: A second accommodating chamber (33) is provided on the left side of the hub shell (2), and a first bearing (23) sleeved on the bearing rod (1) is provided in the second accommodating chamber (33). A third accommodating chamber (22) is further provided on the right side of the hub shell (2) relative to the left side of the first accommodating chamber (5), and a second bearing (24) sleeved on the bearing rod (1) is provided in the third accommodating chamber (22).

6. The ratchet aluminum hub with integrated hub and flywheel according to claim 5, characterized in that: A second positioning groove (25) is arranged on the outside of the ratchet (7), and a retaining spring (26) for positioning the ratchet (7) is arranged in the second positioning groove (25).

7. The ratchet aluminum hub with integrated hub and flywheel according to claim 5, characterized in that: A left dust cover (27) is provided between the left cover (3) and the left side of the hub shell (2), a positioning groove three (28) is provided on the left side of the hub shell (2), a positioning ring one (29) is provided inside the left dust cover (27) and is clamped in the positioning groove three (28), a right dust cover (30) is provided between the right cover (12) and the right side of the toothed ratchet (9), a positioning groove four (31) is provided on the right side of the toothed ratchet (9), and a positioning ring two (32) is provided on the left side of the left dust cover (27) and is clamped in the positioning groove four (31).

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