Structure-enhanced magnesium alloy hub

Abstract

The utility model relates to the technical field of bicycle structures, in particular to a structure-enhanced magnesium alloy hub which comprises a hub body, a connected rib and a bearing seat, the bearing seat is arranged in the center of the interior of the hub body, and the hub body is connected with the bearing seat through the connected rib; the cross sections of the connected ribs are rectangular, and the plurality of connected ribs are wound at intervals by taking the bearing seat as the circle center; a mounting ring is arranged on the bearing seat, and a reinforcing ring is arranged on the reinforcing ring. According to the hub, the connecting ribs with the rectangular cross sections are used as the connecting pieces between the hub body and the bearing seat to replace original spokes, so that the tensile strength and the stability between the hub body and the bearing seat are improved, the safety of the hub is enhanced, the reinforcing ring for reinforcing the bearing rotating shaft is arranged on the bearing seat, and the service life of the hub is prolonged. And the bearing is more stably mounted, so that the connection stability between the bearing and the axle is improved when the bicycle is ridden on a bumpy road surface.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of bicycle structures, in particular to a structure-enhanced magnesium alloy hub. BACKGROUND

[0002] China is a big country of bicycles, so various inventions and creations about bicycles emerge in an endless stream, and the bicycle industry is constantly improving various parts of bicycles. The bicycle wheel seen in our daily life is called a hub, which basically comprises a rim, a bearing seat and spokes. The hub has a bearing seat rotatably supported on a shaft through a two-end steel ball assembly. Therefore, the shaft is fixed to the bicycle frame and the bearing seat is rotatably supported on the shaft, and the spokes are connected between the rim and the bearing seat. Generally, the rim is connected to the bearing seat by screwing spoke steel wire nuts on the radial outer side of the spokes, and the spokes are made of steel wire.

[0003] In this way, a large number of spokes are needed to ensure the connection strength. Since bicycles are used quite frequently, the spokes often appear to be of different tightness, cause deformation, and individual spokes are broken, and are relatively heavy, affecting the safety of riding;

[0004] At the same time, if riding for a long time in a bumpy place, the bearing output end on the bearing seat in the hub will shake, causing unstable connection of the bearing and the axle, and therefore, further improvement can be made. CONTENT OF THE INVENTION

[0005] In order to enhance the safety of the hub and the stability of the bearing seat, the application provides a structure-enhanced magnesium alloy hub.

[0006] The application provides a structure-enhanced magnesium alloy hub, which adopts the following technical scheme:

[0007] A structure-enhanced magnesium alloy hub comprises a hub body, a connecting rib and a bearing seat, the bearing seat is arranged at the central position inside the hub body, and the hub body is connected with the bearing seat through the connecting rib;

[0008] The cross section of the connecting rib is in the shape of a rectangle, and the connecting rib has a plurality of connecting ribs which are arranged at intervals around the bearing seat with the bearing seat as the center.

[0009] The bearing seat is provided with a mounting ring, and the mounting ring is provided with a reinforcing ring for reinforcing the rotating shaft of the bearing.

[0010] By adopting the technical scheme, the plurality of connection pieces with a cross section in a rectangular shape are used as the connecting pieces between the hub body and the bearing seat to replace the original spokes, so that the tensile strength and stability between the hub body and the bearing seat are improved, the safety of the hub is enhanced, the reinforcing ring for reinforcing the rotating shaft of the bearing is arranged on the bearing seat, the bearing is more stably installed, and the connection stability between the bearing and the axle is increased when the bicycle is ridden on a bumpy road.

[0011] Optionally, the reinforcing ring is matched with the rotating shaft of the bearing, the reinforcing ring comprises a fixed part and a reinforcing part, the fixed part and the reinforcing part are in a ring shape, the fixed part and the reinforcing part are in communication with each other, the fixed part is fixedly arranged in the mounting ring, and the reinforcing part is located at one end of the fixed part away from the inner cavity of the bearing seat.

[0012] The diameter of the reinforcing part is smaller than that of the fixed part, the end of the reinforcing part and the end of the fixed part are arranged in a staggered manner, the height of the outer peripheral sidewall of the fixed part is higher than that of the reinforcing part, and the end of the reinforcing part is positioned inwardly from the inner sidewall of the fixed part to form a limiting part for limiting the rotating shaft of the bearing.

[0013] By adopting the technical scheme, during the process that the rotating shaft of the bearing is connected with the axle through the reinforcing ring, the end of the rotating shaft is sequentially arranged in the fixed part and the reinforcing part, the outer sidewall of the rotating shaft fills the reinforcing part and is clamped with the limiting part, so that the movement range of the rotating shaft in the forward extension and the lateral shaking is limited, the shaking of the bearing is reduced, and the stable connection between the bearing and the axle is achieved.

[0014] Optionally, a fixed groove is arranged on the outer sidewall of the fixed part in a surrounding manner, a fixed block is arranged on the inner sidewall of the mounting ring in a surrounding manner, and the fixed block is clamped and fixed in the fixed groove.

[0015] By adopting the technical scheme, the connection stability between the fixed part and the mounting ring is increased by using the clamping connection between the fixed block and the fixed groove.

[0016] Optionally, the fixed block has two groups, the two groups of fixed blocks are arranged on the inner sidewall of the mounting ring in a spaced manner, the fixed groove has two groups, the two groups of fixed grooves are arranged on the outer sidewall of the fixed part in a spaced manner, and the two groups of fixed blocks are arranged in a one-to-one corresponding manner in the two groups of fixed grooves.

[0017] By adopting the technical scheme, the two groups of fixed blocks and the two groups of fixed grooves are arranged in a fixed connection, the number of the fixed blocks and the fixed grooves is increased, the connection stability between the fixed part and the mounting ring is improved, the durability between the fixed part and the mounting ring is improved, and the service life is prolonged.

[0018] Optionally, the fixing groove on the fixing part and the fixing block on the mounting ring are integrally die-cast by the die-casting machine.

[0019] By adopting the above technical scheme, the fixing block between the fixing part and the mounting ring is pressed into the fixing groove by the die-casting machine, the installation precision between the fixing block and the fixing groove is ensured, and the production quality is reduced due to the connection problem between the fixing block and the fixing groove.

[0020] Optionally, the hub body is provided with a valve hole for inflating the tire.

[0021] By adopting the above technical scheme, the tire mounted on the wheel hub can be inflated in the subsequent use process.

[0022] Optionally, the hub body, the connecting rib and the bearing seat are integrally cast.

[0023] By adopting the above technical scheme, the hub body, the connecting rib and the bearing seat are integrally cast, and the situation that the parts are loose and fall off due to excessive frequency of use is reduced.

[0024] Optionally, the hub body, the connecting rib and the bearing seat are made of magnesium alloy.

[0025] By adopting the above technical scheme, the magnesium alloy is used for manufacturing, and the strength or light performance can be guaranteed, so that the bicycle hub structure is more stable.

[0026] In summary, the present application has at least one of the following beneficial technical effects:

[0027] 1. The connecting rib with a rectangular cross section is used as a connecting piece between the hub body and the bearing seat, instead of the original spoke, so as to improve the tensile strength and stability between the hub body and the bearing seat, thereby enhancing the safety of the hub, and the reinforcing ring is arranged on the bearing seat to reinforce the rotating shaft of the bearing, so that the bearing is more stably installed, thereby increasing the connection stability between the bearing and the axle when riding on a bumpy road.

[0028] 2. During the connection process of the rotating shaft of the bearing with the reinforcing ring and the axle, the end of the rotating shaft is sequentially arranged in the fixing part and the reinforcing part, the outer wall of the rotating shaft fills the reinforcing part, and the reinforcing part is clamped, so as to limit the movement range of the rotating shaft to stretch forward and shake to the side, thereby reducing the shaking of the bearing, and achieving stable connection between the bearing and the axle.

[0029] 3. Two groups of fixing blocks and two groups of fixing grooves are arranged for fixed connection, the number of fixing blocks and fixing grooves is increased, the connection stability between the fixing part and the mounting ring is improved, the durability of the fixing part and the mounting ring is improved, and the service life is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a schematic view of the overall structure in the embodiment of the present application.

[0031] Figure 2 is a schematic view of the overall structure in the embodiment of the present application.

[0032] Figure 3 is a schematic view of the overall structure in the embodiment of the present application.

[0033] Figure 4 is a schematic view of the overall structure in the embodiment of the present application.

[0034] BRIEF DESCRIPTION OF DRAWINGS

[0035] 1, hub body; 2, connecting rib; 3, bearing seat; 31, mounting ring; 4, reinforcing ring; 41, fixed part; 411, fixed groove; 42, reinforcing part; 43, fixed block; 44, limiting part; 5, valve hole. DETAILED DESCRIPTION

[0036] The following will be described in detail in combination with the accompanying Figures 1-4 The present application will be further described in detail.

[0037] The embodiment of the present application discloses a structure reinforced magnesium alloy hub.

[0038] Referring to Figure 1 , 2 A structure reinforced magnesium alloy hub comprises a hub body 1, a connecting rib 2 and a bearing seat 3, the bearing seat 3 is arranged at the inner center position of the hub body 1, and the hub body 1 is connected with the bearing seat 3 through the connecting rib 2.

[0039] The cross section of the connecting rib 2 is in a square shape, and the outer peripheral side of the connecting rib 2 is chamfered on both sides, so that the airflow can pass through better after contacting the outer peripheral side of the connecting rib 2 during riding.

[0040] The connecting rib 2 is provided with six connecting ribs 2, one end of the six connecting ribs 2 is arranged around the outer side wall of the bearing seat 3 with the bearing seat 3 as the center, and the other end of the six connecting ribs 2 is fixedly connected with the inner edge of the hub body 1.

[0041] The center position of one end of the bearing seat 3 is provided with a mounting ring 31 matched with the rotating shaft of the bearing, the side wall of the peripheral side of the mounting ring 31 extends to both ends until the thickness of the mounting ring 31 is greater than the thickness of the end part of the bearing seat 3, and the mounting ring 31 is fixedly provided with a reinforcing ring 4, the reinforcing ring 4 is communicated with the mounting ring 31, so as to reinforce the rotating shaft of the bearing by using the reinforcing ring 4.

[0042] In actual use, the plurality of cross-sectionally rectangular connecting ribs 2 are used as connecting pieces between the hub body 1 and the bearing seat 3, instead of the original spokes, so as to improve the tensile strength and stability between the hub body 1 and the bearing seat 3, thereby enhancing the safety of the hub, and the reinforcing ring 4 is arranged on the bearing seat 3 to reinforce the rotating shaft of the bearing, so that the bearing is more stably installed, thereby increasing the connection stability between the bearing and the axle when riding on a bumpy road.

[0043] With reference to Figure 2 , 3 Specifically, in the embodiment, the reinforcing ring 4 includes a fixed portion 41 and a reinforcing portion 42, both of which are annular, and the fixed portion 41 and the reinforcing portion 42 are in communication with each other for the rotating shaft to pass through;

[0044] The fixed portion 41 is arranged in the mounting ring 31, and the reinforcing portion 42 is arranged on the side of the fixed portion 41 away from the inner cavity of the bearing seat 3. The outer peripheral side wall of the fixed portion 41 is annularly provided with a fixed groove 411 along the circumference thereof. The fixed groove 411 has two groups, and the two groups of fixed grooves 411 are arranged at intervals. Correspondingly, in order to install the fixed portion 41 in the mounting ring 31, the inner peripheral side wall of the mounting ring 31 is annularly provided with a fixed block 43 along the circumference thereof. The fixed block 43 has two groups, and the two groups of fixed blocks 43 are arranged at intervals. The two groups of fixed blocks 43 are arranged one-to-one corresponding to the two groups of fixed grooves 411. The fixed block 43 is integrally pressure-cast into the pressure-casting groove by a pressure casting machine, so as to ensure the installation precision between the fixed block 43 and the fixed groove 411 and reduce the production quality due to connection problems between the fixed block 43 and the fixed groove 411.

[0045] With reference to Figure 2 , 3 Specifically, in the embodiment, the diameter of the reinforcing portion 42 is smaller than that of the fixed portion 41, and the reinforcing portion 42 and the fixed portion 41 are arranged in a staggered manner. The centers of the reinforcing portion 42 and the fixed portion 41 are coaxially arranged. Since the diameter of the reinforcing portion 42 is smaller than that of the fixed portion 41, the height of the outer peripheral side wall of the fixed portion 41 is higher than that of the reinforcing portion 42. When the reinforcing portion 42 is coaxially connected with the fixed portion 41, the end portion of the reinforcing portion 42 is connected with the end portion of the fixed portion 41. The portion of the end portion of the reinforcing portion 42 close to the inner side wall thereof is arranged in a staggered manner with the portion of the end portion of the fixed portion 41 close to the inner side wall thereof to form a protruding limiting portion 44. When the rotating shaft is inserted into the mounting ring 31, the rotating shaft is partially clamped on the limiting portion 44, so as to be limited.

[0046] In actual use, the rotating shaft is connected with the axle via the reinforcing ring 4, the end of the rotating shaft is sequentially arranged in the reinforcing part 41 and the reinforcing part 42, the outer wall of the rotating shaft fills the reinforcing part 42, and the rotating shaft is clamped with the limiting part 44, so that the movement range of the rotating shaft is limited from stretching forward and shaking to the side, the shaking of the bearing is reduced, and the stable connection between the bearing and the axle is realized.

[0047] With reference to Figure 1 Specifically, in the embodiment, the hub body 1, the connecting rib 2 and the bearing seat 3 are all made of magnesium alloy and are cast into one whole, the magnesium alloy is used for manufacturing, the strength or the light performance can be ensured, and the hub body 1, the connecting rib 2 and the bearing seat 3 are cast into one whole, so that the situation that the parts are loose and fall off due to overuse is reduced.

[0048] With reference to Figure 1 , 4 Specifically, in the embodiment, the valve hole 5 is further arranged on the inner edge of the hub body 1, so that the tire mounted on the wheel hub is inflated in the subsequent use.

[0049] The implementation principle of the structure-reinforced magnesium alloy hub in the embodiment is as follows: on one hand, the connecting rib 2 with a rectangular cross section is used as the connecting piece between the hub body 1 and the bearing seat 3, instead of the original spoke, so that the tensile strength and stability between the hub body 1 and the bearing seat 3 are improved, and the safety of the hub is enhanced; on the other hand, the reinforcing ring 4 for reinforcing the rotating shaft of the bearing is arranged on the bearing seat 3, the end of the rotating shaft is sequentially arranged in the reinforcing part 41 and the reinforcing part 42, the outer wall of the rotating shaft fills the reinforcing part 42, and the rotating shaft is clamped with the limiting part 44, so that the movement range of the rotating shaft is limited from stretching forward and shaking to the side, the shaking of the bearing is reduced, and the stable connection between the bearing and the axle is realized, the bearing is more stably mounted, and the connection stability between the bearing and the axle is increased when the vehicle runs on a bumpy road.

[0050] The embodiments of the specific embodiment are the preferred embodiments of the application, and do not limit the protection scope of the application, wherein the same parts are indicated by the same reference numerals. Therefore: all equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A structural reinforcement magnesium alloy wheel, characterized by: It comprises a hub body (1), a connecting rib (2) and a bearing seat (3), the bearing seat (3) is arranged at the inner center position of the hub body (1), and the hub body (1) is connected with the bearing seat (3) through the connecting rib (2); The cross section of the connecting rib (2) is in a square shape, and a plurality of connecting ribs (2) are arranged at intervals around the bearing seat (3) as the center. The bearing seat (3) is provided with a mounting ring (31), and the mounting ring (31) is provided with a reinforcing ring (4) for reinforcing the rotating shaft of the bearing.

2. The structural reinforcement type magnesium alloy wheel according to claim 1, characterized by: The reinforcing ring (4) is matched with the rotating shaft of the bearing, and the reinforcing ring (4) comprises a fixed part (41) and a reinforcing part (42), both of which are in a ring shape, and the fixed part (41) and the reinforcing part (42) are in communication with each other, the fixed part (41) is fixedly arranged in the mounting ring (31), and the reinforcing part (42) is located at one end of the fixed part (41) away from the inner cavity of the bearing seat (3). The diameter of the reinforcing part (42) is smaller than that of the fixed part (41), the end of the reinforcing part (42) and the end of the fixed part (41) are arranged in a staggered manner, the height of the outer peripheral sidewall of the fixed part (41) is higher than that of the reinforcing part (42), and the end of the reinforcing part (42) is close to the inner sidewall part of the fixed part (41) and is positioned inwardly to form a limiting part (44) for limiting the rotating shaft of the bearing.

3. The structural reinforcement magnesium alloy wheel of claim 2, wherein: A fixed groove (411) is formed on the outer sidewall of the fixed part (41), the fixed groove (411) is arranged in a surrounding manner on the fixed part (41), the inner sidewall of the mounting ring (31) is provided with a fixed block (43), the fixed block (43) is arranged in a surrounding manner on the mounting ring (31), and the fixed block (43) can be clamped and fixed in the fixed groove (411).

4. The structural reinforcement magnesium alloy wheel of claim 3, wherein: The fixed block (43) has two groups, the two groups of fixed blocks (43) are arranged at intervals on the inner sidewall of the mounting ring (31), the fixed groove (411) has two groups, the two groups of fixed grooves (411) are arranged at intervals on the outer sidewall of the fixed part (41), and the two groups of fixed blocks (43) are correspondingly arranged in the two groups of fixed grooves (411).

5. The structural reinforcement magnesium alloy wheel of claim 3, wherein: The fixed groove (411) on the fixed part (41) and the fixed block (43) on the mounting ring (31) are integrally pressure cast by a pressure casting machine.

6. The structural reinforcement magnesium alloy wheel of claim 1, wherein: The hub body (1) is provided with a valve hole (5) for arranging a tire inflator.

7. The structural reinforcement magnesium alloy wheel of claim 1, wherein: The hub body (1), the connecting rib (2) and the bearing seat (3) are cast into one whole.

8. The structural reinforcement magnesium alloy wheel of claim 1, wherein: The hub body (1), the connecting rib (2) and the bearing seat (3) are all made of magnesium alloy.

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