CN117183618A - Spoke assembly and production process thereof - Google Patents
Spoke assembly and production process thereof Download PDFInfo
- Publication number
- CN117183618A CN117183618A CN202210603995.5A CN202210603995A CN117183618A CN 117183618 A CN117183618 A CN 117183618A CN 202210603995 A CN202210603995 A CN 202210603995A CN 117183618 A CN117183618 A CN 117183618A
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- spoke
- special
- metal piece
- spoke body
- planes
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 57
- 206010066054 Dysmorphism Diseases 0.000 claims abstract description 25
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 16
- 239000004917 carbon fiber Substances 0.000 claims abstract description 16
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000003780 insertion Methods 0.000 claims abstract description 12
- 230000037431 insertion Effects 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 4
- 239000003292 glue Substances 0.000 claims description 28
- 238000007731 hot pressing Methods 0.000 claims description 4
- 238000007711 solidification Methods 0.000 claims description 4
- 230000008023 solidification Effects 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000009969 flowable effect Effects 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses a spoke assembly, comprising: the spoke body is made of carbon fiber materials, the end part of the spoke body is a special-shaped section, and the special-shaped section is formed by connecting and encircling at least one arc surface and at least one plane; the metal piece, the middle part is equipped with the jack, and the one end of jack sets up to dysmorphism hole or whole jack is dysmorphism hole, and dysmorphism hole and dysmorphism section's cross section shape phase-match, dysmorphism section peg graft to in the jack, rotatory metal piece or spoke body makes dysmorphism section and dysmorphism hole part realize close fit. The invention also discloses a production process of the spoke assembly, which comprises the following steps: s1, forming a spoke body; s2, inserting the special-shaped section at the end part of the spoke body into the insertion hole of the metal piece; s3, rotating the metal piece or the spoke body to enable the special-shaped section to be in close fit with the special-shaped hole. The metal piece and the spoke body are convenient to install, do not need to carry out complex forming process, and are tightly connected.
Description
Technical Field
The invention relates to a bicycle wheel, in particular to a spoke assembly and a production process of the spoke assembly.
Background
One end of a carbon fiber spoke of the existing bicycle wheel is connected with a metal piece so as to be fixed on the hub, and the other end of the carbon fiber spoke is connected with a metal piece so as to be fixed on the rim.
Among the existing technical schemes, one of them scheme is to fix carbon fiber spoke and metalwork directly through gluing, when the time spent became invalid, glue dropped, easily caused carbon fiber spoke to deviate from among the metalwork.
Another prior art, such as the patent with publication number CN207028695U, discloses a carbon fiber spoke, the both ends at the spoke body have set firmly the joint, set up first tapering section at the outer peripheral face of joint, be provided with the mounting hole on tooth cap and cap head, the mounting hole pore wall has the second tapering section, is in the same place through first tapering section and second tapering section adaptation. In the mode, the fixed joints are formed at the two ends of the spoke body, and the fixed joints are formed by wrapping yarns at the two ends of the spoke body and solidifying in the process, so that the process has the advantages of multiple process steps and complex process.
Another prior art, such as CN216184190U, discloses a carbon fiber spoke with a cap head embedded therein, wherein the cap and the cap head and the inner core of the spoke are wrapped or covered with carbon fiber prepreg to form integrally.
Disclosure of Invention
The invention aims to provide a spoke assembly and a production process thereof, which are convenient to install and good in stability. In order to achieve the above purpose, the present invention adopts the following technical scheme:
the invention discloses a spoke assembly, comprising: the spoke body is made of carbon fiber materials, the end part of the spoke body is a special-shaped section, and the special-shaped section is formed by connecting and encircling at least one arc surface and at least one plane; the metal piece, the middle part is equipped with the jack, and the one end of jack sets up to dysmorphism hole or whole jack is dysmorphism hole, dysmorphism hole and dysmorphism section's cross sectional shape assorted, dysmorphism section is pegged graft to in the jack, rotatory metal piece or spoke body makes dysmorphism section and dysmorphism hole realize close fit.
Preferably, the special-shaped section of the spoke body is formed by connecting and encircling two first arc surfaces and two first planes, the two first arc surfaces are oppositely arranged, the two first planes are oppositely arranged, and the first arc surfaces and the first planes are alternately and sequentially connected; the inner wall of the special-shaped hole of the metal piece is formed by encircling two second arc surfaces and two second planes, the two second arc surfaces are oppositely arranged, the two second planes are oppositely arranged, and the second arc surfaces and the second planes are alternately and sequentially connected.
Preferably, an inclined section is arranged on the inner side of the second plane, a conical surface with an inward shrinkage opening is arranged on the inner side of the first arc surface, and the conical surface is clamped on the inclined section when the special-shaped section is tightly matched with the special-shaped hole. Realize the joint through setting up slope section and conical surface for the spoke body is difficult for deviating from the jack, promotes the reliability of connection.
Preferably, the central angle corresponding to the first arc surface is alpha, the alpha is more than or equal to 90 degrees and less than or equal to 120 degrees, and the central angle corresponding to the second arc surface is beta, the beta is more than or equal to 90 degrees and less than or equal to 120 degrees; the jack end is set to be the dysmorphism hole, and dysmorphism hole length dimension is a, and whole jack size is b, and then a = 0.4 ~ 0.6b.
Further, the spoke further comprises a glue layer, and the glue layer is arranged between the spoke body and the metal piece.
The two metal pieces are respectively a tooth cap and a pulling cap, the tooth cap and the pulling cap are respectively arranged at two ends of the spoke body, the outer wall of the tooth cap is provided with external threads, and the outer end of the pulling cap is provided with a raised limiting head.
The invention also discloses a production process of the spoke assembly, wherein the spoke assembly is produced according to the following steps:
s1, forming a spoke body, and forming the carbon fiber yarn into the spoke body with the end part being the special-shaped section through pultrusion and hot-pressing solidification.
S2, installing a metal piece, and inserting the special-shaped section at the end part of the spoke body into the insertion hole of the metal piece.
S3, rotating the metal piece or the spoke body in a rotary fit manner, so that the special-shaped section and the special-shaped hole part are tightly matched.
Preferably, in step S2, one of the AB glue is coated on the outer surface of the spoke body, and the other of the AB glue is coated on the inner surface of the shaped hole; in step S3, after the special-shaped section is tightly matched with the special-shaped hole, the AB glue is solidified to tightly bond the metal piece and the spoke body.
In another embodiment, the method further includes a step S4 of pouring a curable flowable adhesive into the gap between the spoke body and the metal part, and curing the flowable adhesive to form a glue layer.
Further, in step S3, the metal member or the spoke body is rotated to rotate by 90 degrees, and the second arc surface is tightly matched with the first plane.
Due to the adoption of the structure, the invention has the following beneficial effects: the spoke body and the metal piece are tightly matched in a rotating mode after being inserted through the special-shaped section and the special-shaped hole, so that the spoke is convenient to install, does not need to carry out a complex forming process, and is tightly connected.
Drawings
FIG. 1 is a schematic view of the spoke assembly of the present invention.
FIG. 2 is a partial schematic view of one end of a spoke assembly.
FIG. 3 is a cross-sectional view of an end of the spoke assembly.
Fig. 4 is a perspective cross-sectional view of the metal piece.
Fig. 5 is a schematic cross-sectional view of a front view of a metal piece.
Fig. 6 is a left side view of fig. 5.
FIG. 7 is a schematic illustration of the installation insertion of the spoke body with the metal piece.
Fig. 8 is a schematic illustration of the insert of fig. 7.
Fig. 9 is a schematic perspective cross-sectional view of fig. 8.
Fig. 10 is a schematic view of the state of the metal piece in fig. 8 after being rotated by an angle ω.
Fig. 11 is a schematic perspective cross-sectional view of fig. 10.
Fig. 12 is a schematic view in the a direction of fig. 10.
FIG. 13 is a schematic view of the connection of the present invention to a spoke cap.
Description of main reference numerals:
1: spoke body, 2: metal piece, 21: dental cap, 211: external threads, 22: pulling cap, 221: spacing head, 3: profiled section, 31: first arc surface, 32: first plane, 33: conical surface, 4: jack, 5: profiled hole, 51: second arc surface, 52: second plane, 53: tilting segment, 6: spoke cap, 7: and (5) a glue layer.
Detailed Description
In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example 1
As shown in fig. 1, the present invention discloses a spoke assembly comprising: spoke body 1 and metal piece 2. Both ends of the spoke body 1 are connected with the metal piece 2.
Referring to fig. 2, the spoke body 1 is made of carbon fiber material. The end part of the spoke body 1 is a special-shaped section 3, and the middle part of the spoke body 1 can be a common cylindrical spoke or a flat spoke.
The special-shaped section 3 is formed by connecting and encircling at least one arc surface and at least one plane. As shown in fig. 3, in this embodiment, the special-shaped section 3 is formed by connecting and encircling two first arc surfaces 31 and two first planes 32, where the two first arc surfaces 31 are oppositely disposed, the two first planes 32 are oppositely disposed, and the first arc surfaces 31 and the first planes 32 are alternately connected in turn (i.e., the first arc surfaces, the first planes, the first arc surfaces, and the first planes are connected end to end in the order of the first arc surfaces, the first planes). The central angle corresponding to the first arc surface 31 is alpha, and then 90 degrees is more than or equal to alpha and less than or equal to 120 degrees, as shown in fig. 3, wherein the point O is the center of the circle.
In other embodiments, the special-shaped section 3 may be formed by only connecting and encircling one circular arc surface and one plane, or by connecting and encircling three circular arc surfaces and three planes.
As shown in fig. 4 and 5, the middle part of the metal piece 2 is provided with a jack 4, and the jack 4 can be a blind hole with one open end, or can be a through hole in the embodiment, and is arranged as a through hole to facilitate sizing. One end of the jack 4 is provided with a special-shaped hole 5 or the whole jack is provided with the special-shaped hole 5. In this embodiment, only the end portion is provided with the shaped hole 5, the length dimension of the shaped hole 5 is a, and the dimension of the entire jack 4 is b, and a=0.4 to 0.6b is shown in fig. 5.
As shown in fig. 6, the shape of the special-shaped hole 5 is matched with that of the special-shaped section 3, the inner wall of the special-shaped hole 5 is formed by encircling two second arc surfaces 51 and two second planes 52, the two second arc surfaces 51 are oppositely arranged, the two second planes 52 are oppositely arranged, and the second arc surfaces 51 and the second planes 52 are alternately and sequentially connected (i.e. are connected end to end according to the sequence of the second arc surfaces, the second planes, the second arc surfaces and the second planes). The central angle corresponding to the second arc surface 51 is beta, and then beta is more than or equal to 90 degrees and less than or equal to 120 degrees. The central angles corresponding to the first arc surface 31 and the second arc surface 51 are controlled to be in the range of 90 degrees to 120 degrees, so that the arc length of the first arc surface 31 or the second arc surface 51 is suitable in proportion to the position of the first plane 32 or the second plane 52, and when the first arc surface 31 and the second plane 52 are rotated by 90 degrees, certain interference fit is formed, and the pre-tightening effect is achieved.
In order to further prevent the spoke body 1 from being pulled out of the insertion hole 4 of the metal member 2, an inclined section 53 is provided on the inner side of the second plane 52 of the shaped hole 5 in this embodiment, and as shown in fig. 4, the inclined section 53 is inclined from the insertion opening of the insertion hole to the other end toward the outer wall, and takes a flared shape. The inner side of the first arc surface 31 of the spoke body 1 is provided with an inwardly necking conical surface 33. The mounting procedure is described in detail below.
1. As shown in fig. 7, the shaped section 3 of the spoke body 1 is inserted into the shaped hole 5 of the metal piece 2, and when inserted, the first plane 32 is inserted in alignment with the second plane 52, so that the end of the spoke body 1 is substantially flush with the end of the insertion hole 4.
As shown in fig. 8 and 9, after insertion, the first plane 32 corresponds to the second plane 52, and the first arc surface 31 corresponds to the second arc surface 51, and at this time, the conical surface 33 is located at the position of the second arc surface 51, and a certain gap exists between the conical surface 33 and the second arc surface 51, as shown in fig. 9.
2. As indicated by the arrow in fig. 8, the metal part 2 is rotated by an angle ω (about 90 degrees) relative to the spoke body 1, so that the first plane 32 is rotated to the position of the second arc surface 51, the rotation process is changed from clearance fit to interference fit, meanwhile, the inclined section 53 is rotated to the position of the conical surface 33, the clamping is realized, the spoke body 1 cannot be separated from the metal part after clamping, and the rotated state is shown in fig. 10 and 11.
In order to make the connection more reliable, it is also possible to apply or pour a hardenable flow glue between the spoke body 1 and the metal part 2, which fills the gap and hardens to form a glue layer.
On the spoke component of the carbon fiber bicycle wheel, two ends of the spoke body 1 are connected with metal pieces 2. The metal pieces 2 at two ends are the same as the connecting structure of the spoke body 1, the metal piece 2 at one end is a tooth cap 21, and the other end is a pulling cap 22. As shown in fig. 13, the cap 21 is connected to the rim through the spoke cap 6, and the pull cap 22 is connected to the hub. The outer wall of the tooth cap 21 is provided with external threads 211, the inner wall of the spoke cap 6 is provided with internal threads, and the tooth cap 21 is in threaded connection with the spoke cap 6. The outer end of the pulling cap 22 is provided with a raised limiting head 221, and the raised limiting head 221 is limited on the mounting hole of the flower drum. Through the connecting structure, the two ends of the spoke 1 are connected with the tooth cap 21 and the pull cap 22 more quickly, conveniently and reliably.
Example two
The embodiment discloses a production process of a spoke assembly, wherein the spoke assembly is the spoke assembly of the first embodiment, and the production process comprises the following steps:
s1, forming spoke body
The carbon fiber yarn is formed into the spoke body 1 with the end part of the special-shaped section 3 through pultrusion and hot pressing solidification.
Pultrusion and thermal press curing of the spoke body 1 are prior art in the art and are not further elaborated upon in this disclosure.
S2, mounting a metal piece
Before insertion, one of the AB glue (such as A glue) is coated on the outer surface of the spoke body 1, and the other glue (such as B glue) of the AB glue is coated on the inner surface of the special-shaped hole 5. The special-shaped section 3 at the end of the spoke body 1 is inserted into the insertion hole 4 of the metal piece 2. When inserted, the first flat surface 32 is inserted in alignment with the second flat surface 52 such that the end of the spoke body 1 is substantially flush with the end of the receptacle 4.
S3, rotary matching
The metal piece 2 is rotated by 90 degrees relative to the spoke body 1, the first plane 32 is rotated to the position of the second arc surface 51, the rotating process is changed into interference fit from clearance fit, meanwhile, the inclined section 53 is rotated to the position of the conical surface 33, clamping is achieved, after clamping, the spoke body 1 cannot be separated from the metal piece 2, and meanwhile, the adhesive A and the adhesive B are adhered and solidified, so that the metal piece 2 and the spoke body 1 are tightly adhered.
Example III
The embodiment discloses a production process of a spoke assembly, wherein the spoke assembly is the spoke assembly of the first embodiment, and the production process comprises the following steps:
s1, forming spoke body
The carbon fiber yarn is formed into the spoke body 1 with the end part being a special-shaped section through pultrusion and hot pressing solidification.
S2, mounting a metal piece
The special-shaped section 3 at the end of the spoke body 1 is inserted into the insertion hole 4 of the metal piece 2. When inserted, the first flat surface 32 is inserted in alignment with the second flat surface 52 such that the end of the spoke body 1 is substantially flush with the end of the receptacle 4.
S3, rotary matching
The metal piece 2 is rotated by about 90 degrees relative to the spoke body 1, so that the first plane 32 is rotated to the position of the second circular arc surface 51, the rotating process is changed from clearance fit to interference fit, and meanwhile, the inclined section 53 is rotated to the position of the conical surface 33, so that clamping is realized.
S4, sizing
As shown in fig. 12, a curable flowing glue is poured into the gap between the spoke body 1 and the metal piece 2, the flowing glue is poured into the two ends (the position B and the position C in fig. 11), and after a period of time, the flowing glue is cured to form a glue layer 7, so that the spoke body and the metal piece are tightly adhered.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention.
Claims (10)
1. A spoke assembly, comprising:
the spoke body is made of carbon fiber materials, the end part of the spoke body is a special-shaped section, and the special-shaped section is formed by connecting and encircling at least one arc surface and at least one plane;
the metal piece, the middle part is equipped with the jack, and the one end of jack sets up to dysmorphism hole or whole jack is dysmorphism hole, dysmorphism hole and dysmorphism section's cross sectional shape assorted, dysmorphism section is pegged graft to in the jack, rotatory metal piece or spoke body makes dysmorphism section and dysmorphism hole realize close fit.
2. The spoke assembly according to claim 1, wherein: the special-shaped section of the spoke body is formed by connecting and encircling two first arc surfaces and two first planes, the two first arc surfaces are oppositely arranged, the two first planes are oppositely arranged, and the first arc surfaces and the first planes are alternately and sequentially connected; the inner wall of the special-shaped hole of the metal piece is formed by encircling two second arc surfaces and two second planes, the two second arc surfaces are oppositely arranged, the two second planes are oppositely arranged, and the second arc surfaces and the second planes are alternately and sequentially connected.
3. The spoke assembly according to claim 2, wherein: the inner side of the second plane is provided with an inclined section, the inner side of the first arc surface is provided with a conical surface with an inward shrinkage opening, and the conical surface is clamped on the inclined section when the special-shaped section is tightly matched with the special-shaped hole.
4. The spoke assembly according to claim 2, wherein: the central angle corresponding to the first arc surface is alpha, the alpha is more than or equal to 90 degrees and less than or equal to 120 degrees, and the central angle corresponding to the second arc surface is beta, the beta is more than or equal to 90 degrees and less than or equal to 120 degrees; the jack end is set to be the dysmorphism hole, and dysmorphism hole length dimension is a, and whole jack size is b, and then a = 0.4 ~ 0.6b.
5. The spoke assembly according to any one of claims 1 to 4, wherein: the spoke comprises a spoke body and is characterized by further comprising a glue layer, wherein the glue layer is arranged between the spoke body and the metal piece.
6. The spoke assembly according to claim 5, wherein: the metal piece is provided with two, is tooth cap and draws the cap respectively, tooth cap and draw the cap and install the both ends at the spoke body respectively, tooth cap outer wall is provided with the external screw thread, draw the cap outer end to be provided with bellied spacing head.
7. A process for producing a spoke assembly, wherein the spoke assembly is as claimed in any one of claims 1 to 6, and the production is carried out by:
s1, forming spoke body
Carrying out pultrusion and hot-pressing solidification on the carbon fiber yarns to form a spoke body with an irregularly-shaped section at the end part;
s2, mounting a metal piece
Inserting the special-shaped section at the end part of the spoke body into the insertion hole of the metal piece;
s3, rotary matching
And the metal piece or the spoke body is rotated to enable the special-shaped section to be in close fit with the special-shaped hole part.
8. The spoke assembly manufacturing process according to claim 7, wherein: in the step S2, one of AB glue is coated on the outer surface of the spoke body, and the other glue of AB glue is coated on the inner surface of the special-shaped hole; in step S3, after the special-shaped section is tightly matched with the special-shaped hole, the AB glue is solidified to tightly bond the metal piece and the spoke body.
9. The spoke assembly manufacturing process according to claim 7, wherein: and S4, pouring a hardenable flowing glue into the gap between the spoke body and the metal piece, and hardening the flowing glue to form a glue layer.
10. The spoke assembly manufacturing process according to claim 7, wherein: the special-shaped section of the spoke body comprises two first arc surfaces and two first planes, the two first arc surfaces are oppositely arranged, the two first planes are oppositely arranged, and the first arc surfaces and the first planes are alternately and sequentially connected; the special-shaped hole of the metal piece comprises two second arc surfaces and two second planes, the two second arc surfaces are oppositely arranged, the two second planes are oppositely arranged, and the second arc surfaces and the second planes are alternately and sequentially connected;
in step S3, the metal piece or the spoke body is rotated to rotate by 90 degrees, and the second arc surface is tightly matched with the first plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210603995.5A CN117183618A (en) | 2022-05-30 | 2022-05-30 | Spoke assembly and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210603995.5A CN117183618A (en) | 2022-05-30 | 2022-05-30 | Spoke assembly and production process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117183618A true CN117183618A (en) | 2023-12-08 |
Family
ID=88994761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210603995.5A Pending CN117183618A (en) | 2022-05-30 | 2022-05-30 | Spoke assembly and production process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117183618A (en) |
-
2022
- 2022-05-30 CN CN202210603995.5A patent/CN117183618A/en active Pending
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