CN220996020U - Low-noise internal variable-speed hub - Google Patents

Abstract

The utility model discloses a low-noise internal variable-speed hub which comprises a hub main body, an axle center, a variable-speed gear set and nuts, wherein the hub main body is sleeved on the axle center, the variable-speed gear set is arranged in the hub main body, the nuts are arranged at two ends of the hub main body, a first pelargonium for replacing a driving bead rail and a second pelargonium for replacing a shell bead rail are respectively arranged at two ends of the hub main body, and a third pelargonium is arranged at one side of the first pelargonium. This interior variable speed flower-drum of low noise designs advanced, compact structure, through with the drive pearl rail at flower-drum main part both ends and casing pearl rail replace respectively for first pelargonium and second pelargonium, replace the pearl rail in the flower-drum main part simultaneously for the action between interior variable speed flower-drum pearl rail changes pelargonium mode by the iron pearl, has realized rotating more smooth, and the effect that the noise is less when rotating.

Description

Low-noise internal variable-speed hub

Technical Field

The utility model belongs to the technical field of bicycle accessories, and particularly relates to a low-noise internal speed-changing hub.

Background

The hub, commonly known as the "hub barrel", is the barrel outside the shaft that connects spokes, commonly known as the hub. The hub is divided into a common hub and an inner variable-speed hub, wherein the inner variable-speed hub is one type of bicycle variable-speed hub, and the inner variable-speed hub is used for arranging variable gears inside the hub and controlling the internal variable-speed gear ratio through a variable-speed line so as to achieve the aim of speed change. The internal variable speed hub is durable and has little maintenance, and the variable speed gear is contained in the hub, so that the external variable speed hub is more attractive in appearance and resistant to the trouble of rainwater and mud.

The action between the inner variable speed hub bead rails is rotated by a bead frame (nest bead) mode, and noise generated during high-speed rotation is large. Therefore, there is an urgent need to design an inner shift drum with low noise to solve the above-mentioned problems.

Disclosure of utility model

The utility model aims to provide a low-noise internal variable-speed hub to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a interior variable speed flower-drum of low noise, includes flower-drum main part, axle center, speed change gear group and nut, the flower-drum main part cup joints on the axle center, speed change gear group sets up the inside at the flower-drum main part, the nut sets up the both ends at the flower-drum main part, the both ends of flower-drum main part are equipped with respectively and are used for replacing the first pelargonium of drive pearl rail and are used for replacing the second pelargonium of casing pearl rail, one side of first pelargonium is equipped with the third pelargonium.

Further, the central axes of the first pelargonium, the second pelargonium and the third pelargonium coincide, and the external diameter is all laminated with the inner wall of flower-drum main part, the diameter of the first pelargonium is the same with the diameter of the second pelargonium, and is all less than the diameter of the third pelargonium, the width of the first pelargonium is the same with the width of the second pelargonium, and is all greater than the width of the third pelargonium.

Further, the hub main body is coincided with the central axis of the axle center.

Further, the axis is provided with a first culture Lin Wei which is matched with the first culture medium and the second culture medium respectively.

Further, two cultures Lin Wei which are matched with the third culture medium are arranged in the flower-drum main body.

Still further, the speed change gear set includes a large sun gear that is separated from the third pelargonium.

Still further, the nut adopts flat-mouth nut, the nut is equipped with two altogether, two the nut respectively threaded connection is at the both ends of axle center, and laminate mutually with first pelargonium and second pelargonium respectively.

The utility model has the technical effects and advantages that: this interior variable speed flower-drum of low noise designs advanced, compact structure, through with the drive pearl rail at flower-drum main part both ends and casing pearl rail replace respectively for first pelargonium and second pelargonium, replace the pearl rail in the flower-drum main part simultaneously for the action between interior variable speed flower-drum pearl rail changes pelargonium mode by the iron pearl, has realized rotating more smooth, and stability is higher, and the effect that noise is less when rotating.

Drawings

FIG. 1 is a cross-sectional view of a modification of the present utility model;

fig. 2 is a cross-sectional view of the utility model prior to modification.

In the figure: 100. a flower-drum main body; 101. a first pelargonium; 102. a second pelargonium; 103. a third pelargonium; 104. driving the bead rail; 105. a shell bead rail; 106. a third bead rail; 200. an axle center; 300. a speed change gear set; 301. a large sun gear; 400. and (3) a nut.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The utility model provides a low-noise internal variable speed hub as shown in fig. 1-2, which comprises a hub main body 100, an axle center 200, a variable speed gear set 300 and a nut 400, wherein the hub main body 100 is sleeved on the axle center 200, the variable speed gear set 300 is arranged in the hub main body 100, the nut 400 is arranged at two ends of the hub main body 100, a first peline 101 for replacing a driving bead rail 104 and a second peline 102 for replacing a shell bead rail 105 are respectively arranged at two ends of the hub main body 100, and a third peline 103 for replacing a third bead rail 106 is arranged at one side of the first peline 101.

In addition, the central axes of first pelargonium 101, second pelargonium 102 and third pelargonium 103 coincide mutually, and the external diameter all laminates with the inner wall of flower-drum main part 100, guaranteed that flower-drum main part 100 can take place relative rotation with axle center 200, the diameter of first pelargonium 101 and second pelargonium 102 is the same, and all is less than the diameter of third pelargonium 103, the width of first pelargonium 101 and second pelargonium 102 is the same, and all is greater than the width of third pelargonium 103, third pelargonium 103 is located between first pelargonium 101 and the second pelargonium 102, first pelargonium 101, second pelargonium 102 and third pelargonium 103 mutually support effect jointly to flower-drum main part 100.

Specifically, the hub main body 100 coincides with the central axis of the axle center 200, so as to ensure that the hub main body 100 can rotate on the axle center 200 stably.

It should be noted that, the axis 200 is provided with a first culture Lin Wei which is matched with the first culture medium 101 and the second culture medium 102 respectively, so that the first culture medium 101 and the second culture medium 102 can be conveniently installed and limited.

Specifically, the flower-drum main body 100 in the original internal variable-speed flower-drum is lengthened, so that the flower-drum main body 100 is conveniently provided with the culture Lin Weier matched with the third culture medium 103, and the third culture medium 103 is conveniently installed and limited.

It should be noted that, the speed change gear set 300 includes the large sun gear 301, and the width of the large sun gear 301 in the original inner speed change hub is shortened, so that the large sun gear 301 is separated from the third pelargonium 103, and thus it can be ensured that the third pelargonium 103 can be smoothly mounted into the pelargonium Lin Weier, and meanwhile, it can be ensured that the operations between the large sun gear 301 and the third pelargonium 103 are not interfered with each other.

Specifically, the nuts 400 are flat nuts, two nuts 400 are provided, the two nuts 400 are respectively in threaded connection with two ends of the axle center 200 and respectively attached to the first pelargonium 101 and the second pelargonium 102, so that the first pelargonium 101 and the second pelargonium 102 are conveniently limited.

Working principle: when the low-noise internal variable speed hub is installed, the third cylinder 103 is firstly installed in the second part of the culture Lin Wei on the inner wall of the hub main body 100, then the first cylinder 101 and the second cylinder 102 are respectively installed at two ends of the hub main body 100, then the hub main body 100 is sleeved on the axle center 200, and the first cylinder 101 and the second cylinder 102 are respectively installed in the first part of the culture Lin Wei on the axle center 200. This interior variable speed flower-drum of low noise designs advanced, compact structure, through with the drive pearl rail 104 and the casing pearl rail 105 at flower-drum main part 100 both ends replace respectively first pelin 101 and second pelin 102, replace the third pearl rail 106 in the flower-drum main part 100 simultaneously for the action between interior variable speed flower-drum pearl rail changes pelin mode from iron pearl formula into, has realized rotating more smooth, stability is higher, and the effect that noise is less when rotating.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (7)

1. An interior variable speed flower-drum of low noise, its characterized in that: including flower-drum main part (100), axle center (200), speed change gear group (300) and nut (400), flower-drum main part (100) cup joint on axle center (200), speed change gear group (300) set up the inside in flower-drum main part (100), nut (400) set up the both ends in flower-drum main part (100), the both ends of flower-drum main part (100) are equipped with first pelargonium (101) and second pelargonium (102) that are used for replacing the drive pearl rail respectively, one side of first pelargonium (101) is equipped with third pelargonium (103).

2. The low noise inner shift drum according to claim 1, wherein: the central axes of the first pelargonium (101), the second pelargonium (102) and the third pelargonium (103) coincide, and the external diameter is all laminated with the inner wall of flower-drum main part (100), the diameter of the first pelargonium (101) and the second pelargonium (102) is the same, and is all less than the diameter of the third pelargonium (103), the width of the first pelargonium (101) and the second pelargonium (102) is the same, and is all greater than the width of the third pelargonium (103).

3. The low noise inner shift drum according to claim 1, wherein: the hub main body (100) is coincident with the central axis of the axle center (200).

4. The low noise inner shift drum according to claim 1, wherein: the axis (200) is provided with a first culture Lin Wei which is matched with the first culture medium (101) and the second culture medium (102) respectively.

5. The low noise inner shift drum according to claim 1, wherein: and a second culture Lin Wei matched with the third culture medium (103) is arranged in the flower-drum main body (100).

6. The low noise inner shift drum according to claim 1, wherein: the speed change gear set (300) comprises a large sun gear (301), and the large sun gear (301) is separated from the third pelargonium (103).

7. The low noise inner shift drum according to claim 1, wherein: the nut (400) adopts flat nuts, two nuts (400) are arranged in total, the two nuts (400) are respectively connected with two ends of the axle center (200) in a threaded mode, and the nuts are respectively attached to the first pelin (101) and the second pelin (102).