CN216884918U - Guide rail assembly structure - Google Patents
Guide rail assembly structure Download PDFInfo
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- CN216884918U CN216884918U CN202123026824.0U CN202123026824U CN216884918U CN 216884918 U CN216884918 U CN 216884918U CN 202123026824 U CN202123026824 U CN 202123026824U CN 216884918 U CN216884918 U CN 216884918U
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- guide rail
- hook
- support
- fixing strip
- mounting surface
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Abstract
The utility model discloses a guide rail assembly structure, which comprises a bracket and a guide rail, wherein the guide rail is formed on a guide rail mounting surface of the bracket through injection molding, and compared with the traditional structure, the guide rail assembly structure reduces the assembly process; the assembly structure of original guide rail and support can be because factors such as vibration produce relative slip in the tight ware chain working process that rises before to increase wearing and tearing and generate heat, adopt the structure of this application can prolong the life of whole guide rail and support, reduce the friction loss.
Description
Technical Field
The utility model belongs to the technical field of tensioners, and particularly relates to a guide rail assembling structure.
Background
The guide rail for the tensioner of the timing chain system mainly plays a role in supporting and guiding the chain and adjusting the tension of the chain; the guide rail support 10 and the guide rail pair 20 are produced respectively by adopting the structure shown in the attached figures 1-3 in the prior art, and then are assembled, specifically, one end of the guide rail support 10 extends out of a bulge 11, and the corresponding end of the guide rail pair 20 is provided with a hook-shaped part 21; spacing hole 12 has been seted up with the installation face of the guide rail pair 20 on the guide rail support 10 one end of keeping away from protruding 11 to and be provided with the spacing hole 12 of second between spacing hole 12 and the protruding 11, the installation face of guide rail pair 20 towards guide rail support 10 has reference column 22, and be provided with second reference column 23 between colluding form portion 21 and the reference column 22, collude form portion 21 earlier like this and catch on protruding 11, then follow the trend and impress spacing hole 12 and the spacing downthehole of second with the reference column 22 of guide rail pair and second reference column 23, thereby realize the assembly of guide rail pair and guide rail support. On one hand, the structure needs to increase the labor cost and the assembly process; on the other hand, there is the clearance between guide rail bracket and the guide rail after the assembly is vice, and the vibration that the chain produced at the in-process of operation then will probably make to produce relative slip between guide rail bracket and the guide rail pair to chain and the vice friction of guide rail produce to generate heat plus guide rail bracket and the vice relative friction of guide rail between can increase the vice wearing and tearing of guide rail by a wide margin and generate heat.
Disclosure of Invention
An object of the present invention is to provide a guide rail assembling structure which is intended to solve the technical problems existing in the background art.
In order to solve the technical problem, the utility model aims to realize that:
a guide rail assembling structure comprises a bracket and a guide rail, wherein the guide rail is formed on a guide rail mounting surface of the bracket through injection molding.
On the basis of the above scheme and as a preferable scheme of the scheme: the guide rail mounting surface is provided with a plurality of bulges or grooves, and one surface of the guide rail facing the guide rail mounting surface is provided with a groove or a bulge corresponding to the guide rail mounting surface.
On the basis of the above scheme and as a preferable scheme of the scheme: one side of the bracket, which is far away from the guide rail, is provided with a concave back cavity.
On the basis of the above scheme and as a preferable scheme of the scheme: the support is provided with a rotating shaft hole, the rotating shaft hole is close to the first end of the support, side limiting plates are arranged on two sides of the support, a sliding groove is formed in one end, far away from the first end of the support, of each side limiting plate, a protruding block is arranged on the guide rail, and the protruding block is embedded into the sliding groove.
On the basis of the above scheme and as a preferable scheme of the scheme: the first end of the bracket is provided with a positioning part, and one end of the guide rail is positioned by the positioning part.
On the basis of the above scheme and as a preferable scheme of the scheme: one end of the guide rail surrounds and wraps part of the positioning part.
On the basis of the above scheme and as a preferable scheme of the scheme: the positioning part comprises a first hook-shaped part, a second hook-shaped part is correspondingly arranged at the tail end of the guide rail, and the second hook-shaped part is hooked on the first hook-shaped part.
On the basis of the above scheme and as a preferable scheme of the scheme: the guide rail mounting surface is provided with a third hook-shaped part, the guide rail and the binding surface of the guide rail mounting surface are provided with a fourth hook-shaped part, the fourth hook-shaped part is embedded into the third hook-shaped part, and the orientation of the third hook-shaped part is opposite to that of the first hook-shaped part.
On the basis of the above scheme and as a preferable scheme of the scheme: the guide rail mounting surface is provided with a fixing strip, a fixing strip accommodating groove is formed in the guide rail corresponding to the fixing strip, and the fixing strip is embedded into the fixing strip accommodating groove.
On the basis of the above scheme and as a preferable scheme of the scheme: the length of the fixing strip accommodating groove is greater than that of the fixing strip, so that the guide rail can slide relative to the support along the length direction of the guide rail.
Compared with the prior art, the utility model has the outstanding and beneficial technical effects that: compared with the traditional structure, the assembly process is reduced; the assembly structure of original guide rail and support can be because factors such as vibration produce relative slip in the tight ware chain working process that rises before to increase wearing and tearing and generate heat, adopt the structure of this application can prolong the life of whole guide rail and support, reduce the friction loss.
Drawings
FIG. 1 is a schematic view of an overall structure of a conventional guide rail bracket and guide rail pair assembly;
FIG. 2 is a schematic view of a prior art guide rail bracket configuration;
FIG. 3 is a schematic view of a rail pair;
FIG. 4 is a schematic perspective view of the present application;
FIG. 5 is a front view of the present assembled structure;
FIG. 6 is a left side view of the present assembled structure;
FIG. 7 is a sectional view A-A;
FIG. 8 is a sectional view B-B;
FIG. 9 is a cross-sectional view C-C;
FIG. 10 is a cross-sectional view taken along line D-D;
FIG. 11 is a cross-sectional view E-E;
FIG. 12 is a sectional view taken along line F-F;
FIG. 13 is a schematic view of a runner and lug configuration;
fig. 14 is a partially enlarged view J.
Detailed Description
In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments obtained by a person skilled in the art without making any inventive step, based on the given embodiments, fall within the scope of protection of the present application.
In the description of the present application, it is to be understood that the terms "upper", "lower", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
In the description of the present application, 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 or implying any number of technical features indicated.
A guide rail mounting structure includes a bracket 3 and a guide rail 4, the guide rail 4 is formed on a guide rail mounting surface 331 of the bracket 3 by injection molding. Specifically, in this embodiment, a first mold is used to perform a first injection molding to obtain the bracket 3, and then the bracket 3 is placed in a second mold to perform a second injection molding, so as to directly mold the guide rail 4 on the bracket 3, and after cooling, a finished guide rail is obtained. In the present embodiment, the bracket is preferably obtained by injection molding a mixture of PA66 and glass fiber, and the material of the guide rail 4 is PA 66.
The guide rail mounting surface 331 is provided with a plurality of bulges or grooves, one surface of the guide rail body 43 facing the guide rail mounting surface is provided with the corresponding grooves or bulges, the better combination of the guide rail and the bracket and the guide rail positioning in the second injection molding process are better improved through the matching of the bulges or the grooves of the guide rail mounting surface 331 and the grooves or the bulges of the guide rail body 43, and in the injection molding process, the guide rail is in a semi-flowing state before being cooled, so that the arrangement can also be more beneficial to the molding of the guide rail.
In a further preferred embodiment, a concave back cavity 36 is formed in one surface, away from the guide rail 4, of the support 3, and the concave back cavity 36 is used for being rapidly positioned and clamped with a mold in the second injection molding process, so that the weight of the support is reduced and the use of materials is reduced under the condition that the strength of the support is met.
In this embodiment, seted up a pivot hole 34 on the support 3, pivot hole 34 closes on the first end 31 of support, and the support both sides are equipped with side limiting plate 32, and side limiting plate 32 can restrict the chain and move steadily in the support, can not swing. Because the guide rail 4 generates heat in the operation process of the timing chain, the guide rail expands, the guide rail cools and contracts after the timing chain is stopped, the guide rail extends and shortens along the support to a certain extent, the temperature difference exists between the guide rail and the support, the expansion and contraction amounts of the guide rail and the support are different, if the end part of the guide rail is directly fixed, internal stress is generated inside the guide rail in the extending and shortening process, even the guide rail and the support are peeled off, and the damage is caused, therefore, the embodiment is further preferable, one end, far away from the first end 31 of the support, of the side limiting plate 32 is provided with the sliding groove 321, the guide rail 40 is provided with the convex block 42, the convex block 42 is embedded into the sliding groove 321, the upper end of the guide rail can freely stretch relative to the support in the process of the expansion and contraction of the guide rail, and the sliding groove 321 is arranged along the length direction of the support, on one hand, the compensation of the expansion and contraction of the guide rail can be met, on the other hand, the sliding groove 321 limits the guide rail to move towards the direction far away from the support, thereby well maintaining the structural stability of the guide rail.
The bracket first end 31 has a locating portion by which one end of the guide rail 4 is located. Specifically, one end of the guide rail 4 surrounds a positioning part of the wrapping part, wherein the positioning part comprises a first hook-shaped part 311, the tail end of the guide rail 4 is correspondingly provided with a second hook-shaped part 411, and one end of the guide rail 4 surrounds the positioning part of the wrapping part, so that the second hook-shaped part 411 is hooked on the first hook-shaped part 311; so just realized guide rail one end location to fine anticreep.
In this embodiment, it is further preferable that the rail mounting surface 331 is provided with a third hook-shaped portion 331, the surface of the rail 4 to be attached to the rail mounting surface has a fourth hook-shaped portion 431, the fourth hook-shaped portion 431 is fitted into the third hook-shaped portion 331, and the third hook-shaped portion 331 is oriented opposite to the first hook-shaped portion 311, so that the first hook-shaped portion 311 and the third hook-shaped portion 331 which are disposed in opposite directions are fitted to the second hook-shaped portion 411 and the fourth hook-shaped portion 431, whereby the rail and the bracket can be well coupled and fixed.
Preferably, the guide rail mounting surface is provided with a fixing strip 35, the guide rail 4 is provided with a fixing strip accommodating groove 44 corresponding to the fixing strip 35, the fixing strip 35 is embedded in the fixing strip accommodating groove 44, and preferably, the length of the fixing strip accommodating groove 44 is greater than that of the fixing strip 35, so that the guide rail 4 can slide relative to the bracket 3 along the length direction thereof. It intends in the operation of timing chain, and guide rail 4 can generate heat, will expand then, and the guide rail can cool down the shrink after shutting down, and then the guide rail will have certain extension and shortening along the support, and there is the temperature difference in guide rail and support, and the two inflation and shrinkage are different, so the two that fixed strip storage tank 44 and fixed strip 35 set up just can have a relative motion volume, and can restrict the guide rail along support horizontal dislocation in the relative motion process, restrict the guide rail with spout 321 and lug 42 together transversely and vertically drunkenness.
Based on the above, compared with the traditional structure, the structure of the application reduces the assembly process; the assembly structure of original guide rail and support can be because factors such as vibration produce relative slip in the tight ware chain working process that rises before to increase wearing and tearing and generate heat, adopt the structure of this application can prolong the life of whole guide rail and support, reduce the friction loss.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.
Claims (9)
1. A guide rail assembly structure, includes support (3) and guide rail (4), its characterized in that: the guide rail (4) is formed on the guide rail mounting surface of the bracket (3) through injection molding; the guide rail is characterized in that a plurality of bulges or grooves are arranged on the guide rail (4) mounting surface, and grooves or bulges corresponding to the guide rail (4) are arranged on one surface of the guide rail (4) facing the guide rail mounting surface.
2. A guide rail assembling structure according to claim 1, wherein: one side of the bracket (3) far away from the guide rail (4) is provided with a concave back cavity.
3. A guide rail assembling structure according to claim 1, wherein: seted up a pivot hole (34) on support (3), pivot hole (34) close on the first end (31) of support, the support both sides are equipped with side limiting plate (32), side limiting plate (32) are kept away from the one end of the first end (31) of support is equipped with spout (321), guide rail (4) are equipped with lug (42), lug (42) embedding in spout (321).
4. A guide rail assembling structure according to claim 1, wherein: the first end (31) of the bracket is provided with a positioning part, and one end of the guide rail (4) is positioned by the positioning part.
5. The guide rail assembling structure according to claim 4, wherein: one end of the guide rail (4) surrounds the wrapping part and the positioning part.
6. A guide rail assembling structure according to claim 5, wherein: the positioning part comprises a first hook-shaped part (311), a second hook-shaped part (411) is correspondingly arranged at the tail end of the guide rail (4), and the second hook-shaped part (411) is hooked on the first hook-shaped part (311).
7. The guide rail assembling structure according to claim 6, wherein: the guide rail mounting structure is characterized in that a third hook-shaped portion (331) is arranged on the guide rail mounting surface, the guide rail (4) and the binding surface of the guide rail mounting surface are provided with a fourth hook-shaped portion (431), the fourth hook-shaped portion (431) is embedded into the third hook-shaped portion (331), and the orientation of the third hook-shaped portion (331) is opposite to that of the first hook-shaped portion (311).
8. A guide rail assembling structure according to claim 1, wherein: the guide rail mounting surface is provided with a fixing strip (35), a fixing strip accommodating groove (44) is formed in the guide rail (4) corresponding to the fixing strip (35), and the fixing strip (35) is embedded into the fixing strip accommodating groove (44).
9. A guide rail assembling structure, according to claim 8, wherein: the length of the fixing strip accommodating groove (44) is greater than that of the fixing strip (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123026824.0U CN216884918U (en) | 2021-12-01 | 2021-12-01 | Guide rail assembly structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123026824.0U CN216884918U (en) | 2021-12-01 | 2021-12-01 | Guide rail assembly structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216884918U true CN216884918U (en) | 2022-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123026824.0U Active CN216884918U (en) | 2021-12-01 | 2021-12-01 | Guide rail assembly structure |
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| CN (1) | CN216884918U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114012979A (en) * | 2021-12-01 | 2022-02-08 | 伊维氏传动系统（平湖）有限公司 | Guide rail assembly process and structure |
-
2021
- 2021-12-01 CN CN202123026824.0U patent/CN216884918U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114012979A (en) * | 2021-12-01 | 2022-02-08 | 伊维氏传动系统（平湖）有限公司 | Guide rail assembly process and structure |
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