CN111843422B - Auxiliary anti-rotation structure containing micro-gap dissimilar material assembly body - Google Patents
Auxiliary anti-rotation structure containing micro-gap dissimilar material assembly body Download PDFInfo
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- CN111843422B CN111843422B CN202010774601.3A CN202010774601A CN111843422B CN 111843422 B CN111843422 B CN 111843422B CN 202010774601 A CN202010774601 A CN 202010774601A CN 111843422 B CN111843422 B CN 111843422B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
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Abstract
The invention relates to the field of assembly of dissimilar material assemblies, and particularly discloses an auxiliary anti-rotation structure of a dissimilar material assembly with a micro gap, wherein the auxiliary anti-rotation structure is arranged between a base part and an adjacent part of the assembly; the auxiliary anti-rotation structure comprises an anti-rotation key and an anti-rotation key groove matched with the anti-rotation key, wherein the anti-rotation key groove is formed in the base part, and the anti-rotation key is fixed on an adjacent part. The invention has the advantages of enhancing the anti-rotation effect of the structure of the assembly body containing the micro-gap, improving the integral strength and rigidity of the structure of the assembly body and prolonging the service life of the structure of the assembly body.
Description
Technical Field
The invention relates to the field of assembly of dissimilar materials, in particular to an auxiliary anti-rotation structure of an assembly containing a micro-gap dissimilar material.
Background
In the assembly and connection technology of assemblies made of dissimilar materials with micro gaps, the conventional assembly method is generally to fixedly connect the parts of the assemblies directly, or to adopt a flexible material pre-tightening technology to realize the detachable connection of the parts of the assemblies and control the relative rotation between the parts. Although the fixed connection mode is firm and stable in connection, the assembly body adopting the connection mode has the defects that all parts cannot be flexibly disassembled, the requirements on the mechanical properties of all the connected parts are high, and the application range is narrow; in the flexible material pre-tightening technology, a flexible medium is filled in a micro gap between a base part and an adjacent part of the dissimilar material assembly body to realize the connection of the dissimilar material assembly body containing the micro gap, and the anti-rotation between the base part and the adjacent part of the assembly body is realized by compressing the flexible material to generate holding force. The flexible material pre-tightening technology can meet the use requirement of a certain period, but in the long-term use process, the overall rigidity and the strength of the assembly body can be obviously reduced along with the time extension due to the aging effect of the middle flexible medium material, and after the overall rigidity and the strength are reduced to a certain degree, the matrix part and the adjacent parts of the assembly body can rotate relatively in the use process, so that the use performance and the service life of the assembly body are finally influenced.
Therefore, in the assembly process of the assembly body made of the dissimilar materials with the micro gap, the anti-rotation effect of the assembly body is particularly required to be further enhanced, but the gap between the base part and the adjacent part of the assembly body with the micro gap is too small, and meanwhile, the common keyway type anti-rotation structure is not suitable for overcoming the difficulty that the structure of the assembly body is easy to loosen and rotate under the condition that the mechanical property difference between the base part material and the adjacent part material in the structure of the assembly body is large.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an auxiliary anti-rotation structure of an assembly body containing a micro-gap dissimilar material.
The purpose of the invention is realized by the following technical scheme: an auxiliary anti-rotation structure of an assembly body containing a micro-gap dissimilar material is arranged between a base part and an adjacent part of the assembly body; the auxiliary anti-rotation structure comprises an anti-rotation key and an anti-rotation key groove matched with the anti-rotation key, wherein the anti-rotation key groove is formed in the base part, and the anti-rotation key is fixed on an adjacent part.
Specifically, the anti-rotation key is connected to the adjacent parts through a transition layer.
Specifically, the transition layer is adhered to the anti-rotation key through an adhesive, and the transition layer is adhered to the adjacent part.
Specifically, the transition layer is made of rubber or silicon foam materials.
Specifically, the peripheral edge of the transition layer is 2 mm-3 mm away from the peripheral edge of the anti-rotation key.
Specifically, the transition layer is adapted to the shape of the inner profile of the anti-rotation key.
Specifically, prevent changeing the key on be equipped with the screw hole, the assembly body part prevent changeing the keyway in be equipped with screw hole assorted through-hole, the through-hole diameter be greater than the screw hole diameter, the through-hole be located prevent changeing the middle part of keyway 3.
Specifically, the mechanical properties of the material of the anti-rotation key and the material of the base part of the assembly body are different by +/-10%.
The invention has the following advantages:
according to the invention, the auxiliary anti-rotation structure of the assembly body is designed on the premise of less change of the original structure size of the assembly body, the anti-rotation effect of the assembly body structure containing the micro-gap is enhanced by arranging the anti-rotation key, the anti-rotation key groove and the anti-rotation structure of the transition layer, the integral strength, the rigidity and the service life of the assembly body structure are improved, and particularly, when the assembly body needs to be decomposed, the auxiliary anti-rotation structure can be decomposed and can be positioned and installed.
Drawings
FIG. 1 is a schematic view of an anti-rotation key groove arrangement according to the present invention;
FIG. 2 is a schematic view of the structure of the anti-rotation key and the adjacent parts of the invention;
FIG. 3 is a front view of the anti-rotation key of the present invention;
FIG. 4 is a side sectional view of the anti-rotation key of the present invention;
FIG. 5 is a schematic front view of the bonding structure of the anti-rotation key and the transition layer of the present invention;
FIG. 6 is a schematic cross-sectional side view of the anti-rotation key and transition layer bonding structure of the present invention;
in the figure: 1-base part, 2-adjacent part, 3-anti-rotation key groove, 4-anti-rotation key, 5-through hole, 6-threaded hole, 7-transition layer and 8-adhesive.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration only, not by way of limitation, i.e., the embodiments described are intended as a selection of the best mode contemplated for carrying out the invention, not as a full mode. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following.
As shown in fig. 1 to 6, an auxiliary anti-rotation structure of an assembly body containing a micro-gap dissimilar material is provided between a base part 1 and an adjacent part 2 of the assembly body; the auxiliary anti-rotation structure comprises an anti-rotation key 4 and an anti-rotation key groove 3 matched with the anti-rotation key 4, the anti-rotation key groove 3 is formed in the base part 1, and the anti-rotation key 4 is fixed on the adjacent part 2. The heterogeneous materials mentioned in the invention refer to the situation that the mechanical properties of the base part material of the assembly body and the adjacent part material are different greatly, wherein, the base part 1 is a material with relatively high strength, the adjacent part 2 is a material with relatively low strength, for example, the base part is a metal material, the adjacent part is a high molecular material, aiming at the assembly body structure which contains micro gaps and has large difference of the mechanical properties of the materials of the parts in the assembly body, the auxiliary anti-rotation structure is suitable for the heterogeneous material assembly body containing millimeter or submillimeter micro gaps, the anti-rotation effect of the assembly body is enhanced by arranging the anti-rotation structure with proper size in the micro gaps among the parts, the anti-rotation function is realized by adopting the way of matching the anti-rotation keys 4 and the anti-rotation key grooves 3 in the scheme, and the transition layer 7 is utilized to realize the fixed adhesive connection of the anti-rotation keys 4 with the adjacent parts 2 with relatively high strength, therefore, the auxiliary anti-rotation structure of the assembly body is obtained by the clamping of the anti-rotation key 4 and the anti-rotation key groove 3.
The auxiliary anti-rotation structure is additionally arranged on the basis of traditional flexible medium pre-tightening, so that the anti-rotation effect of the assembly body is further improved. Particularly, when the assembly body needs to be disassembled, the auxiliary anti-rotation structure can be disassembled, and positioning and installation can be realized.
Furthermore, the transition layer 7 is adhered to the anti-rotation key 4 through an adhesive 8, the inner profile of the anti-rotation key 4 can be an arc surface or a plane, and the transition layer 7 is adhered to the adjacent part 2.
Furthermore, the anti-rotation torque between the base part 1 and the adjacent part 2 is further enhanced, the transition layer 7 is made of rubber or silicon foam materials, preferably sponge rubber, so that the strength and rigidity of the connecting structure of the assembly body can be greatly improved.
Furthermore, the distance between the peripheral edge of the transition layer 7 and the peripheral edge of the anti-rotation key 4 is 2-3 mm, wherein the area of the anti-rotation key 4 is larger than that of the transition layer 7.
Furthermore, the transition layer 7 is adapted to the shape of the inner profile of the anti-rotation key 4.
Furthermore, a threaded hole 6 is arranged on the anti-rotation key 4, a through hole 5 matched with the threaded hole 6 is arranged on the base part 1 of the assembly body, the diameter of the through hole 5 is larger than that of the threaded hole 6, the through hole 5 is communicated with the anti-rotation key groove 3, the threaded hole 6 is arranged in the middle of the anti-rotation key 4, the through hole 5 is arranged in the middle of the anti-rotation key groove 3, the anti-rotation key 4 in the scheme is firstly placed on the anti-rotation key groove 3, then the base part 1 and the adjacent part 2 are assembled, the anti-rotation key 4 is fixed on the adjacent part 2 after being assembled in place, therefore, in order to realize the process, the through hole 5 is arranged on the base part 1, one end of the through hole 5 is positioned in the anti-rotation key groove 3, then the anti-rotation key 4 is provided with the threaded hole 6, during assembly, the anti-rotation key 4 pasted with the transition layer 7 is firstly placed in the anti-rotation key groove 3, then put into technology screw through-hole 5 from the one side that base part 1 deviates from adjacent part 2, technology screw and the screw hole 6 threaded connection on the anti-rotation key 4 in the anti-rotation keyway 3, fix in the anti-rotation keyway 3 through such a mode earlier with anti-rotation key 4, then at the surface coating adhesive of transition layer 7, later assemble base part 1 with adjacent part 2, prevent that rotation key 4 will paste on adjacent part 2 after the assembly, do not need technology screw after pasting firmly, at this moment only need take out technology screw and just accomplish the installation of supplementary anti-rotation structure.
Furthermore, the mechanical properties of the material of the anti-rotation key 4 and the material of the base part 1 of the assembly body are different by +/-10%, and the anti-rotation key 4 is preferably made of the same material as the base part 1.
The setting method of the auxiliary anti-rotation structure comprises the following steps:
s1, selecting materials with mechanical properties different by +/-10% according to the mechanical properties of the material of the assembly body base part 1, and then processing the anti-rotation key 4;
s2, machining an anti-rotation key groove 3 matched with an anti-rotation key 4 on the inner profile surface of the assembly body base part 1; ensuring that the inner profile of the anti-rotation key 4 does not protrude out of the inner profile of the base part 1 and the anti-rotation key 4 is completely matched with the anti-rotation key groove 3, wherein the inner profile of the base part 1 can be an arc surface or a plane;
s3, forming a threaded hole 6 on the anti-rotation key 4, and forming a through hole 5 matched with the threaded hole 6 on the base part 1 of the assembly body;
s4, cutting the transition layer 7, and adhering the outer surface of the transition layer 7 to the inner molded surface of the anti-rotation key 4; and the peripheral edge of the transition layer 7 is ensured to be 2 mm-3 mm away from the peripheral edge of the anti-rotation key 4, wherein the area of the anti-rotation key 4 is larger than that of the transition layer 7.
S5, mounting the anti-rotation key 4 bonded with the transition layer 7 into the corresponding anti-rotation key groove 3 of the base part 1 by using a process screw; the anti-rotation structure is quickly and accurately positioned and installed;
s6, coating the adhesive 8 on the inner surface of the transition layer 7, and buckling the base part 1 provided with the anti-rotation key 4 on the outer surface of the adjacent part 2, so that the inner surface of the transition layer 7 is adhered to the outer surface of the adjacent part 2;
s7, after the transition layer 7 is firmly bonded with the adjacent part 2, removing the process screw for assembling the anti-rotation key 4, and completing the auxiliary anti-rotation of the assembly body containing the micro-gap dissimilar material.
The auxiliary anti-rotation method of the assembly body containing the micro-gap dissimilar material realizes the advantages of degradability of the assembly body, repeated utilization of the auxiliary anti-rotation structure and long service life.
To further enhance the anti-rotation effect, a plurality of anti-rotation keys 4 and anti-rotation key grooves 3 may be provided between the base part 1 and the adjacent part 2.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art can make numerous possible variations and modifications to the described embodiments, or modify equivalent embodiments, without departing from the scope of the invention. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technology of the present invention are within the protection scope of the present invention, unless the content of the technical solution of the present invention is departed from.
Claims (3)
1. The utility model provides a contain supplementary anti-rotation structure of microgap dissimilar material assembly body which characterized in that: the auxiliary anti-rotation structure is arranged between the base part (1) and the adjacent part (2) of the assembly body; the auxiliary anti-rotation structure comprises an anti-rotation key (4) and an anti-rotation key groove (3) matched with the anti-rotation key (4), the anti-rotation key groove (3) is arranged on the base part (1), and the anti-rotation key (4) is fixed on the adjacent part (2) through a transition layer (7); the transition layer (7) is adhered to the anti-rotation key (4) through an adhesive (8), and the transition layer (7) is adhered to the adjacent part (2); the transition layer (7) is made of rubber or silicon foam material; the anti-rotation key (4) is provided with a threaded hole (6), a base part (1) of the assembly body is provided with a through hole (5) matched with the threaded hole (6), the diameter of the through hole (5) is larger than that of the threaded hole (6), and the through hole (5) is positioned in the middle of the anti-rotation key groove (3); the mechanical property of the material of the anti-rotation key (4) is +/-10% different from that of the material of the base body part (1) of the assembly body.
2. An anti-rotation structure comprising an assembly of a plurality of micro-gap dissimilar materials as in claim 1, further comprising: the peripheral edge of the transition layer (7) is 2-3 mm away from the peripheral edge of the anti-rotation key (4).
3. An anti-rotation structure comprising an assembly of a plurality of micro-gap dissimilar materials as in claim 1, further comprising: the transition layer (7) is adapted to the shape of the inner profile of the anti-rotation key (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010774601.3A CN111843422B (en) | 2020-08-04 | 2020-08-04 | Auxiliary anti-rotation structure containing micro-gap dissimilar material assembly body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010774601.3A CN111843422B (en) | 2020-08-04 | 2020-08-04 | Auxiliary anti-rotation structure containing micro-gap dissimilar material assembly body |
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| Publication Number | Publication Date |
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| CN111843422A CN111843422A (en) | 2020-10-30 |
| CN111843422B true CN111843422B (en) | 2022-06-24 |
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Citations (7)
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| USH242H (en) * | 1986-07-08 | 1987-04-07 | The United States Of America As Represented By The Secretary Of The Navy | Method of keying outer bearing race to housing |
| CN201231136Y (en) * | 2008-07-16 | 2009-05-06 | 唯赛勃环保材料制造(上海)有限公司 | Glass fiber reinforced plastics pressure container and side-port anti-rotation key thereof |
| CN201377422Y (en) * | 2008-12-31 | 2010-01-06 | 重庆建设摩托车股份有限公司 | Anti-rotation structure for piston |
| CN206647334U (en) * | 2017-01-24 | 2017-11-17 | 王安基 | Servo forges valve and servo system soon |
| CN208089903U (en) * | 2017-12-21 | 2018-11-13 | 唐山德生科技有限公司 | Split type speed reducer rotation Axile connection structure |
| CN109268303A (en) * | 2018-11-12 | 2019-01-25 | 丹东通博泵业有限公司 | Magnetic Drive Pump Sliding Bearing component and magnetic drive pump |
| CN210548609U (en) * | 2019-09-23 | 2020-05-19 | 茨埃威尔(天津)变速器技术有限公司 | Gear hub broaching part anti-rotation device |
-
2020
- 2020-08-04 CN CN202010774601.3A patent/CN111843422B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USH242H (en) * | 1986-07-08 | 1987-04-07 | The United States Of America As Represented By The Secretary Of The Navy | Method of keying outer bearing race to housing |
| CN201231136Y (en) * | 2008-07-16 | 2009-05-06 | 唯赛勃环保材料制造(上海)有限公司 | Glass fiber reinforced plastics pressure container and side-port anti-rotation key thereof |
| CN201377422Y (en) * | 2008-12-31 | 2010-01-06 | 重庆建设摩托车股份有限公司 | Anti-rotation structure for piston |
| CN206647334U (en) * | 2017-01-24 | 2017-11-17 | 王安基 | Servo forges valve and servo system soon |
| CN208089903U (en) * | 2017-12-21 | 2018-11-13 | 唐山德生科技有限公司 | Split type speed reducer rotation Axile connection structure |
| CN109268303A (en) * | 2018-11-12 | 2019-01-25 | 丹东通博泵业有限公司 | Magnetic Drive Pump Sliding Bearing component and magnetic drive pump |
| CN210548609U (en) * | 2019-09-23 | 2020-05-19 | 茨埃威尔(天津)变速器技术有限公司 | Gear hub broaching part anti-rotation device |
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| CN111843422A (en) | 2020-10-30 |
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