CN203078219U - Hub for bike - Google Patents
Hub for bike Download PDFInfo
- Publication number
- CN203078219U CN203078219U CN 201320079144 CN201320079144U CN203078219U CN 203078219 U CN203078219 U CN 203078219U CN 201320079144 CN201320079144 CN 201320079144 CN 201320079144 U CN201320079144 U CN 201320079144U CN 203078219 U CN203078219 U CN 203078219U
- Authority
- CN
- China
- Prior art keywords
- axle bumper
- bumper
- mandrel
- shaft bumper
- pearl bowl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Axle Suspensions And Sidecars For Cycles (AREA)
Abstract
The utility model relates to a hub for a bike, which is simple in structure, low in processing cost and long in service life. The hub comprises a mandrel, a hub body sleeved on the mandrel, a left shaft bumper, an intermediate shaft bumper and a right shaft bumper, wherein the left shaft bumper, the intermediate shaft bumper and the right shaft bumper are arranged on the mandrel, a pair of bead bowls is arranged in two ports of the hub body, the bead bowls form a pair of rolling bearings together with the left shaft bumper and a ratchet wheel with a bead bowl surface on the outer side wall through one circle of steel balls, and a left bead bowl part and a right bead bowl part are arranged on the inner wall surfaces of the two ports of the ratchet wheel and are respectively matched with the intermediate shaft bumper and the right shaft bumper through one circle of steel balls to form another pair of rolling bearings. The hub for the bike, provided by the utility model, has the advantages that the diameter of the bearings is large and the bearing force acts on the wall of a ratchet wheel housing. In a using process, the intermediate shaft bumper and the steel balls difficultly wear to influence the service life of the whole hub; and in addition, because the intermediate shaft bumper and the mandrel are in a split structure, roller path surfaces at two sides are easy to process and are low in cost.
Description
Technical field
The utility model relates to a kind of bicycle drive shaft.
Background technology
Flower-drum is a vitals of bicycle, existing bicycle hub structure as shown in Figure 1, it comprises: one have in the mandrel 1 of axle bumper 3, be located at the left axle bumper 2 and the right axle bumper 4 of these mandrel 1 both sides; The two-port inwall of flower-drum body 5 is provided with a pair of pearl bowl 6, and this cooperates a pair of antifriction-bearing box of formation with described left axle bumper 2 and middle axle bumper 3 by a circle steel ball respectively to pearl bowl 6; Each inwall of the two-port of ratchet 7 is provided with pearl bowl portion, and this cooperates formation a pair of race bearing with described middle axle bumper 3 and right axle bumper 4 by a circle steel ball to pearl bowl portion; Wherein, the two sides of described middle axle bumper 3 all cooperate with described steel ball; The weak point that this structure exists is: because the space between middle axle bumper 3 and the ratchet 7 is less, the antifriction-bearing box diameter that is constituted is less, and therefore middle axle bumper and steel ball bear the bigger power of carrying, in use, middle axle bumper and steel ball easily wear and tear, and have influenced the service life of whole flower-drum; In addition, described because middle axle bumper 3 is an one with mandrel, the roller surface processing technology complexity of its both sides, cost height.
The utility model content
Technical problem to be solved in the utility model provides a kind of simple in structure, tooling cost is lower and service life is long bicycle drive shaft.
In order to address the above problem, the utility model provides a kind of bicycle drive shaft, comprise: mandrel, be sheathed on the flower-drum body on the mandrel, be located at the left axle bumper on the mandrel, middle axle bumper and right axle bumper, be provided with a pair of pearl bowl in the two-port of flower-drum body, this constitutes a pair of antifriction-bearing box with the ratchet that described left axle bumper and lateral wall are provided with pearl bowl face by a circle steel ball respectively to the pearl bowl; The two-port internal face of ratchet is provided with left and right pearl bowl portion, left and right pearl bowl portion respectively with described in axle bumper and right axle bumper enclose steel ball by one and cooperate, constitute another to race bearing.
Described mandrel and left axle bumper, middle axle bumper and right axle bumper are the split part, and their connection mode is a bolt arrangement.
Described ratchet is divided into left and right two ones, and the right side of left part is provided with the portion of extending axially, and the left side of right part is provided with port, and the portion of extending axially of left part stretches into the port of right part, and fixes by pin.
The left side of described left axle bumper is provided with left captive nut, and the right side of right axle bumper is provided with right captive nut, and the left side of middle axle bumper is provided with middle captive nut.
Pearl bowl the rim of a bowl place of described left end and pearl bowl portion the rim of a bowl place of described ratchet are provided with cover of dust 11, enter in order to prevent foreign matter, guarantee its service life.
Bicycle drive shaft of the present utility model has positive effect with respect to prior art: (1) bicycle drive shaft of the present utility model utilizes the outside wall portions of ratchet and the pearl bowl of flower-drum body right-hand member to make up by a circle steel ball, the race bearing that constitutes, with respect to the described prior art of Fig. 1, the internal face of ratchet and middle axle bumper are by a circle steel ball combination, the race bearing that constitutes relatively, it is big to have bearing diameter, and holding capacity acts on the ratchet shell body wall.In use, middle axle bumper and steel ball are difficult for taking place the service life of the whole flower-drum of effect of attrition; In addition, described because middle axle bumper and mandrel are split-type structural, the roller surface processing of its both sides is more convenient, cost is low.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the utility model is described in further detail, wherein:
Fig. 1 is the sectional structure chart of the bicycle drive shaft of prior art;
Fig. 2 is the sectional structure chart of bicycle drive shaft of the present utility model.
The specific embodiment
See shown in Figure 1, the bicycle drive shaft of present embodiment, comprise: mandrel 1, be sheathed on the flower-drum body on the mandrel 1, be located at left axle bumper 2, middle axle bumper 3 and right axle bumper 4 on the core 1, be provided with a pair of pearl bowl 6 in the two-port of flower-drum body 5, this constitutes a pair of antifriction-bearing box with the ratchet 7 that described left axle bumper 2 and lateral wall are provided with pearl bowl face 71 by a circle steel ball respectively to pearl bowl 6; The two-port internal face of ratchet 7 is provided with left pearl bowl portion 72, right pearl bowl portion 73, this to pearl bowl portion respectively with described in axle bumper 3 and right axle bumper 4 enclose steel ball by one and cooperate, constitute another to race bearing.
Described mandrel 1 is the split part with left axle bumper 2, middle axle bumper 3 and right axle bumper 4, and their connection mode is a bolt arrangement.
Described ratchet 7 is divided into left part 74, right part 75, and the right side of left part 74 is provided with the portion of extending axially, and the left side of right part 75 is provided with port, and the portion of extending axially of left part 74 stretches into the port of right part, and by pin 8 captive joint one.
The left side of described left axle bumper 2 is provided with left captive nut 9, and the right side of right axle bumper 4 is provided with right captive nut 11, and the left side of middle axle bumper 3 is provided with middle captive nut 10.
Pearl bowl portion the rim of a bowl place of the rim of a bowl place of described left end pearl bowl 6 and described ratchet 7 is provided with cover of dust 11, enters in order to prevent foreign matter, guarantees its service life.
Obviously, the foregoing description only is for the utility model example clearly is described, and is not to be qualification to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And these belong to conspicuous variation or the change that spirit of the present utility model extended out and still are among the protection domain of the present utility model.
Claims (5)
1. bicycle drive shaft, it is characterized in that: comprising: mandrel (1), be sheathed on the flower-drum body on the mandrel (1), be located at the left axle bumper (2) on the mandrel (1), middle axle bumper (3) and right axle bumper (4), be provided with a pair of pearl bowl (6) in the two-port of flower-drum body (5), this constitutes a pair of antifriction-bearing box with the ratchet (7) that described left axle bumper (2) and lateral wall are provided with pearl bowl face (71) by a circle steel ball respectively to pearl bowl (6); The two-port internal face of ratchet (7) is provided with left and right pearl bowl portion (72,73), and left and right pearl bowl portion (72,73) cooperates by a circle steel ball with described middle axle bumper (3) and right axle bumper (4) respectively, constitutes another to race bearing.
2. a kind of bicycle drive shaft according to claim 1 is characterized in that: described mandrel (1) is the split part with left axle bumper (2), middle axle bumper (3) and right axle bumper (4), and their connection mode is a bolt arrangement.
3. a kind of bicycle drive shaft according to claim 1, it is characterized in that: described ratchet (7) is divided into left and right two ones (74,75), the right side of left part (74) is provided with the portion of extending axially, the left side of right part (75) is provided with port, the portion of extending axially of left part (74) stretches into the port of right part, and fixing by pin (8).
4. a kind of bicycle drive shaft according to claim 1, it is characterized in that: the left side of described left axle bumper (2) is provided with left captive nut (9), the right side of right axle bumper (4) is provided with right captive nut (11), and the left side of middle axle bumper (3) is provided with middle captive nut (10).
5. a kind of bicycle drive shaft according to claim 1 is characterized in that: pearl bowl portion the rim of a bowl place of the rim of a bowl place of described left end pearl bowl (6) and described ratchet (7) is provided with cover of dust (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320079144 CN203078219U (en) | 2013-02-20 | 2013-02-20 | Hub for bike |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320079144 CN203078219U (en) | 2013-02-20 | 2013-02-20 | Hub for bike |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203078219U true CN203078219U (en) | 2013-07-24 |
Family
ID=48824087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320079144 Expired - Fee Related CN203078219U (en) | 2013-02-20 | 2013-02-20 | Hub for bike |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203078219U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103991333A (en) * | 2013-02-20 | 2014-08-20 | 雅瑟斯精密机械(江苏)有限公司 | Bicycle hub |
-
2013
- 2013-02-20 CN CN 201320079144 patent/CN203078219U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103991333A (en) * | 2013-02-20 | 2014-08-20 | 雅瑟斯精密机械(江苏)有限公司 | Bicycle hub |
| CN103991333B (en) * | 2013-02-20 | 2017-02-15 | 雅瑟斯精密机械(江苏)有限公司 | Bicycle hub |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20170220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |