CN207715642U - A kind of flat filament material and the roller chain bush rolled using the flat filament material - Google Patents
A kind of flat filament material and the roller chain bush rolled using the flat filament material Download PDFInfo
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- CN207715642U CN207715642U CN201820029503.5U CN201820029503U CN207715642U CN 207715642 U CN207715642 U CN 207715642U CN 201820029503 U CN201820029503 U CN 201820029503U CN 207715642 U CN207715642 U CN 207715642U
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- filament material
- flat filament
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- sleeve
- internal diameter
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Abstract
The roller chain bush rolled the utility model discloses a kind of flat filament material and using the flat filament material, flat filament material rectangular cross-section and trapezoidal compound cross-section, the stage casing rectangular in cross-section of flat filament material, the left and right ends section of flat filament material is trapezoidal, the long bottom edge of trapezoid cross section is docked with length of sides such as the broadsides of rectangular section, and the internal diameter at the sleeve both ends through edge rolling forming is more than the internal diameter in stage casing.It is more than the internal diameter in stage casing using the internal diameter at the sleeve both ends of flat filament material edge rolling forming, since sleeve outer diameter and inner plate hole are interference fit, after press fitting, so that sleeve both ends internal diameter is consistent with stage casing internal diameter, it is bad to eliminate the diameter contracting after former process sleeve press fitting, and then the wear-resisting property of chain is improved, it is whole partially short and meet design requirement to avoid chain length.
Description
Technical field
The utility model is related to roller chain technical fields, are rolled more particularly, to a kind of flat filament material and using the flat filament material
Roller chain bush.
Background technology
Roller chain is used in assembling process middle sleeve outer diameter and inner plate hole and is interference fitted, as shown in figs. 1 and 2, due to
The extruding force of interference fit makes hub internal bore surface generate " diameter contracting ".Diameter contracting causes contact of the sleeve lining with axis pin to be that point connects
It touches, by quickly worn out, the metal fragment for wearing generation is further exacerbated by rubbing for axis pin and sleeve for the infiltration layer of point contact position axis pin
It wipes, integrally reduces the wear-resisting property of chain.Meanwhile diameter contracting reduces the fit clearance of axis pin and sleeve, causes chain length whole
It is partially short.
Utility model content
In view of the deficiencies of the prior art, the technical problem to be solved is that a kind of flat filament material of offer and uses for the utility model
The roller chain bush that the flat filament material rolls, can be to avoid generation diameter in assembling process using the sleeve of the flat filament material rolled forming
Contracting.
The utility model is so that above-mentioned technical problem is addressed by the following technical programs.
A kind of flat filament material, flat filament material rectangular cross-section and trapezoidal compound cross-section, the stage casing rectangular in cross-section of flat filament material are flat
The left and right ends section of silk is trapezoidal, and the long bottom edge of trapezoid cross section is docked with length of sides such as the broadsides of rectangular section.
Preferably, trapezoid cross section is in a rectangular trapezoid.
The internal diameter of roller chain bush, the sleeve both ends shaped using the flat filament material edge rolling is more than the internal diameter in stage casing.
To sum up, the sleeve of the flat filament material rolled forming using the utility model, since the internal diameter at sleeve both ends is more than
The internal diameter in stage casing, also, sleeve outer diameter and inner plate hole are interference fit, after press fitting so that sleeve both ends internal diameter and stage casing
Internal diameter is consistent, bad to eliminate the diameter contracting after former process sleeve press fitting, and then improves the wear-resisting property of chain, is kept away
It is whole partially short and meet design requirement chain length has been exempted from.
Description of the drawings
It is intended to, convenient for description preferred embodiment, not constitute the limit to scope of protection of the utility model in conjunction with the following drawings
System.
The sleeve and the diameter contracting schematic diagram after inner plate press fitting that Fig. 1 is the prior art；
Fig. 2 is the partial enlargement structural representation at A in Fig. 1；
Fig. 3 is the main structure diagram of the flat filament material of the utility model embodiment；
Fig. 4 is the side structure schematic view of Fig. 3；
Fig. 5 is the partial enlargement structural representation at B in Fig. 4；
Fig. 6 is the schematic cross-sectional view of the sleeve of the utility model embodiment；
Fig. 7 is the partial enlargement structural representation at C in Fig. 6；
The sleeve and the structural schematic diagram before inner plate press fitting that Fig. 8 is the utility model；
Fig. 9 is the partial enlargement structural representation at D in Fig. 8；
The sleeve and the structural schematic diagram after inner plate press fitting that Figure 10 is the utility model；
Figure 11 is the partial enlargement structural representation at E in Figure 10.
In figure：The rectangular sections 1-, the trapezoid cross sections 2-.
Specific implementation mode
In order to facilitate the utility model is understood, below in conjunction with the accompanying drawings in the preferred embodiment pair of the utility model that provides
The utility model is described in detail.
As shown in Figures 3 to 5, the flat filament material rectangular cross-section of the utility model and trapezoidal compound cross-section, flat filament material
The left and right ends section of stage casing rectangular in cross-section, flat filament material is trapezoidal, the broadside on the long bottom edge and rectangular section 1 of trapezoid cross section 2
Etc. the length of sides docking.
As shown in Figure 6 and Figure 7, the roller chain bush of the utility model, the set shaped through edge rolling using the flat filament material
The internal diameter at cylinder both ends is more than the internal diameter in stage casing.Referring to Fig. 8 to Figure 11, the front and back schematic diagram of comparison press fitting is it is found that due to using this
Sleeve diameter is matched with inner plate hole using interference slightly larger than intermediate internal diameter, sleeve outer diameter made of the new process of kind flat filament material
It closes, the sleeve both ends internal diameter after press fitting is consistent with intermediate internal diameter, diameter contracting occurs to eliminate after former process sleeve is pressed
Caused by chain length is partially short and Point contact.
In a specific embodiment, referring to Fig. 3 to Fig. 5, take the length L1 of flat filament material, width L2 be respectively 8cm and
7.88cm, trapezoid cross section 2 use right-angled trapezium, and the broadside of rectangular section 1 is with the long bottom edge a equal lengths of trapezoid cross section 2 to being connected in
The difference a-c of 0.51cm, the long bottom edge a and short bottom edge c of trapezoid cross section 2 are 0.05cm, and the height h of trapezoid cross section 2 is 1.5cm.
Referring to Fig. 6 it is found that using the flat filament material edge rolling forming a sleeve embodiment in, the stage casing outer diameter Φ of sleeve
A is 4.15cm, and the stage casing internal diameter Φ B of sleeve are 3.12cm, and the internal diameter Φ C of the two-port of sleeve are 3.22cm, the both ends of sleeve
The internal diameter Φ C of mouth are slightly larger than the stage casing internal diameter Φ B of sleeve, after press fitting so that in the internal diameter Φ C and sleeve of the two-port of sleeve
Section internal diameter Φ B are consistent, to eliminate the diameter contracting phenomenon after former process sleeve press fitting.
Several technical terms used in the utility model are intended merely to facilitate description, do not constitute to the utility model
Limitation, the utility model is not limited to above-described preferable embodiment, is based on those skilled in the art institute
The known technology or use that can be known are capable of the various modifications of equivalence replacement and the embodiment of change in the prior art,
Every spirit or technical concept based on the utility model, should be included within the scope of protection of this utility model.
Claims (3)
1. a kind of flat filament material, it is characterized in that：Flat filament material rectangular cross-section and trapezoidal compound cross-section, the stage casing section of flat filament material is in
The left and right ends section of rectangle, flat filament material is trapezoidal, and the long bottom edge of trapezoid cross section is docked with length of sides such as the broadsides of rectangular section.
2. flat filament material according to claim 1, it is characterized in that：Trapezoid cross section is in a rectangular trapezoid.
3. roller chain bush, it is characterized in that：Using the sleeve both ends of the flat filament material edge rolling forming described in claims 1 or 2
Internal diameter is more than the internal diameter in stage casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820029503.5U CN207715642U (en) | 2018-01-09 | 2018-01-09 | A kind of flat filament material and the roller chain bush rolled using the flat filament material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820029503.5U CN207715642U (en) | 2018-01-09 | 2018-01-09 | A kind of flat filament material and the roller chain bush rolled using the flat filament material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207715642U true CN207715642U (en) | 2018-08-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820029503.5U Active CN207715642U (en) | 2018-01-09 | 2018-01-09 | A kind of flat filament material and the roller chain bush rolled using the flat filament material |
Country Status (1)
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| CN (1) | CN207715642U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278329A (en) * | 2018-01-09 | 2018-07-13 | 杭州东华链条集团有限公司 | A kind of roller chain sleeve rolling process |
-
2018
- 2018-01-09 CN CN201820029503.5U patent/CN207715642U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278329A (en) * | 2018-01-09 | 2018-07-13 | 杭州东华链条集团有限公司 | A kind of roller chain sleeve rolling process |
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