CN112053621A - Combined mechanical model - Google Patents
Combined mechanical model Download PDFInfo
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- CN112053621A CN112053621A CN202010975631.0A CN202010975631A CN112053621A CN 112053621 A CN112053621 A CN 112053621A CN 202010975631 A CN202010975631 A CN 202010975631A CN 112053621 A CN112053621 A CN 112053621A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/02—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
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Abstract
The invention provides a combined mechanical model, which belongs to the field of mechanical models, and comprises a plurality of connecting main bodies, a plurality of spline shaft sleeves and a plurality of connecting rod bodies which are matched, wherein each connecting main body comprises a main body piece, each main body piece is provided with a spline hole, a cross-shaped jack and a terminal groove, the spline holes are cross-shaped spline holes with the modulus of 10 as the modulus and are uniformly distributed, the spline holes are arranged on the rims of round holes, and four cross-shaped cuboid key grooves are formed according to 90 degrees; the cross jack is a symmetrical cross jack, and the shape of the cross plug is a symmetrical right cross jack; the terminal groove is of a wedge-shaped structure, and the shape of the terminal groove is of a dovetail structure. The invention can obtain various plug-in modes, is convenient for plug-in combination of main parts, and makes the combined mechanical model more convenient and flexible, and is easier to innovate and create.
Description
Technical Field
The invention belongs to the field of mechanical models, relates to a mechanical model of an assembled building block structure, and particularly relates to a combined mechanical model.
Background
At present, combined physical teaching aids, learning aids and toys are popular educational tools in the educational activities of developed countries. The similar products in China generally adopt a plug-in mounting method of convex-round-concave-square or shaft-hole combination for imitating the happy height, mostly adopt building block combination structures as main parts, belong to toy products, have single structure and insufficient change, cannot completely express industrial frame structures, cannot visually and truly reproduce mechanical structures and working principles, and cannot well meet the requirements of scientific and technological innovation education and professional teaching activities. I started the research in this respect from 2003, and obtained the invention patent of 'Assembly object teaching aid' in 2004, and obtained the technical scheme disclosed in invention patent zl200920096536.2 in 2014, changed the main body T-shaped jack and plug structure into the cross-shaped jack and plug structure that are one-way symmetrical, increased the stability of the plug combination; however, after years of application and research, some major technical defects are found. When the connecting rod is inserted into the shaft sleeve, the size modulus of the axial insertion of the connecting rod cannot be ensured due to the protrusion of the shaft sleeve cap, and particularly, the problem of interference of the transmission of the connecting rod exists.
Disclosure of Invention
The invention aims to solve the problem that the combined mechanical model can realize plug-in combination in various modes, so that the combined mechanical model is more convenient and flexible and is easier to innovate and create.
In order to solve the technical problems, the invention adopts the technical scheme that: the combined mechanical model comprises a plurality of connecting main bodies, a plurality of spline shaft sleeves and a plurality of connecting rod bodies which are matched;
the hole of spline axle sleeve is the connecting hole, and the connecting hole is round hole or square hole, and the kind of spline axle sleeve includes square hole spline axle sleeve and round hole spline axle sleeve, and square hole spline axle sleeve includes square hole short key spline axle sleeve and square hole long key spline axle sleeve, and it has four square keys to press the angle of 90 degrees to distribute on the spline axle sleeve excircle, and the square key includes short key and long key, and what the key length is less than half length of spline axle sleeve is short key spline axle sleeve, and what the key length is greater than half more than spline axle sleeve length is long key spline axle sleeve
The connecting rod body comprises a plurality of connecting rods and a plurality of special-shaped connecting rods, each connecting rod and each special-shaped connecting rod are provided with a spline hole and a sinking platform, the number of the spline holes and the number of the sinking platforms are different, the specifications are different, the spline holes of the connecting rods are distributed by taking a fixed distance as a modulus, the spline holes are arranged on the rim of the round hole and are coaxially arranged, and the inner ring of each spline hole is provided with a cuboid key groove; the sinking platform is formed by arranging 2 cylindrical sinking platforms which are larger than the spline hole on the axial end surface of the spline hole and are used for sinking the shaft sleeve cap;
the connecting main body comprises a main body piece, wherein a spline hole, a cross-shaped jack and a terminal groove are formed in the main body piece, the spline hole is a cross-shaped spline hole with a modulus of 10 as the modulus, the spline hole is formed in the rim of a round hole, and four cross-shaped cuboid key grooves are formed in the round hole at 90 degrees; the cross jack is a symmetrical cross jack, and the shape of the cross plug is a symmetrical right cross jack; the terminal groove is of a wedge-shaped structure, and the shape of the terminal groove is of a dovetail structure.
Further, the main body piece comprises the following specifications;
the main body part is provided with three spline holes, three pairs of axial and radial cross double insertion holes and 30-main body parts with a pair of radial terminal grooves;
20-main body part with a spline hole, three pairs of radial pair of cross double insertion holes and radial pair of terminal grooves;
a 15-offset hole main body piece with a spline hole, 2 axial pairs of radial pair of cross double insertion holes and one axial pair of radial terminal grooves;
15-main body part with a spline hole, a pair of cross-shaped jacks in axial and radial directions and a pair of terminal slots in axial and radial directions;
the plug comprises 30-plug main body parts, wherein the plug main body parts comprise three spline holes, three pairs of axial radial one-pair cross jacks, one pair of radial terminal grooves and a cross double plug arranged at the other radial end;
the plug comprises a 10-plug main body part which is provided with a spline hole, a pair of cross-shaped jacks in the axial direction and the radial direction, a pair of terminal grooves in the radial direction and a pair of cross-shaped double plugs at the other end in the radial direction;
the 10-double plug main body part is provided with a spline hole, a pair of cross double insertion holes in the axial direction, a pair of terminal grooves in the radial direction and two pairs of cross double plugs at the other two ends in the radial direction;
the 05-double plug main body part is provided with a spline hole, a pair of terminal grooves are arranged at two radial ends of the spline hole, and two pairs of cross plugs are axially arranged on the spline hole;
the plug comprises a spline hole, a pair of cross-shaped jacks in the axial direction and the radial direction, a pair of terminal grooves in the radial direction, and 10-right-angle plug main body parts of cross-shaped double plugs distributed at right angles at the two ends in the axial direction and the radial direction;
a 20-terminal piece which is provided with a spline hole, three pairs of radial pair of cross double insertion holes, a pair of terminal grooves in the radial direction, a terminal groove at one end in the radial direction and a terminal at the other end;
the 10-terminal main body piece is provided with a spline hole, a pair of cross double insertion holes in the axial direction and the radial direction, a pair of terminal grooves in the radial direction and a terminal at one end in the radial direction;
the 10-double-terminal main body piece is provided with a spline hole, a pair of cross-shaped jacks in the axial direction and the radial direction, a pair of terminal grooves in the radial direction and terminals at the other two radial ends;
the 20-terminal plug main body part is provided with a spline hole, three pairs of axial and radial cross double insertion holes, a pair of radial terminal grooves, a cross double plug at one radial end and a terminal at the other radial end;
the 10-terminal plug main body part is provided with a spline hole, a pair of cross double-jack holes in the axial direction and the radial direction, a pair of terminal grooves in the radial direction, a cross double-plug at one radial end and a terminal at the other radial end;
the 10-terminal plug right-angle main body part is provided with a spline hole, a pair of cross-shaped jacks in the radial direction and the axial direction, a pair of terminal grooves at the other end in the radial direction, a cross-shaped plug at one end in the axial direction and a terminal at one end in the radial direction;
a 10-terminal groove plug main body which is provided with a pair of cross-shaped jacks, a pair of cross-shaped double plugs and five other terminal grooves on the end surfaces;
a 05-terminal groove plug body II having a pair of cross plugs and a terminal groove on the opposite end faces of the plugs;
a 10-terminal groove main body piece which is provided with a pair of cross-shaped jacks and six terminal grooves on six sides of the right cubic body;
the 10-round shaft main body piece is provided with a spline hole, a pair of cross-shaped jacks in the axial direction and the radial direction, a pair of terminal grooves in the radial direction and a round shaft at the other end in the radial direction;
the main body part is a 15-degree angle with an included angle of 15 degrees between the terminal surfaces, wherein the terminal surfaces are provided with a pair of terminal grooves in the axial direction and a pair of terminal grooves in the radial direction;
the plug comprises a spline hole, a pair of axial cross-shaped jacks, a pair of terminal grooves, a terminal groove at one end of the other end of the radial cross-shaped jacks, and a main body piece at the other end of the radial cross-shaped jacks, wherein the main body piece is a terminal with two sides forming an included angle of 30 degrees.
Further, the spline hole is matched with the cylindrical shaft sleeve or the spline shaft sleeve to form a rotating structure, and the spline hole is matched with the spline shaft to form a fixed structure; the cross jack and the cross plug are inserted to form a stable structure of various frames in insertion combination by adopting a concave-convex structure matched with the cross jack and the cross plug; the wedge-shaped structure that the terminal groove is matched with the terminal is adopted, and the terminal groove is matched with the terminal to form sliding fit of the terminal in the terminal groove.
Further, the connecting rod comprises the following specifications;
a 20-2 hole connecting rod with 2 sinking platforms and spline holes;
a 25-2 hole connecting rod with 2 sinking platforms and spline holes;
30-3 hole connecting rods with 3 sinking platforms and spline holes;
a 40-3 hole connecting rod with 3 sinking platforms and spline holes;
a 50-5 hole connecting rod with 5 sinking platforms and spline holes;
a 60-5 hole connecting rod with 5 sinking platforms and spline holes;
a 70-7 hole connecting rod with 7 sinking platforms and spline holes;
a 90-9 hole connecting rod with 9 sinking platforms and spline holes;
a 110-11 hole connecting rod with 11 sinking platforms and spline holes;
a 130-13 hole connecting rod with 13 sinking platforms and spline holes;
a 70-long hole swing rod with 3 sinking platforms, spline holes and a long hole;
an 80-corner connecting rod with 10 sinking platforms, spline holes and 2 45-degree corners;
the T-shaped 30-T connecting rod is provided with 5 sinking platforms and spline holes;
the 30-right-angle connecting rod is provided with 5 sinking platforms, spline holes and a right-angle shape;
a 45-Bu-shaped connecting rod with 5 sinking platforms, spline holes and Bu-shaped;
5 sinking platforms, spline holes and a cross 40-ten connecting rod are arranged;
the device is provided with 7 sinking platforms, spline holes and a 40-meter shape in a meter shape;
the connecting rod is 20-2 holes, namely the length of the connecting rod is 20 mm, and the connecting rod is provided with 2 sinking platforms and spline holes;
25-2 hole connecting rods, 30-3 hole connecting rods, 40-3 hole connecting rods, 50-5 hole connecting rods, 60-5 hole connecting rods, 70-7 hole connecting rods, 90-9 hole connecting rods, 110-11 hole connecting rods and 130-13 hole connecting rods.
Further, the special-shaped connecting rods comprise a plurality of 70-long hole swinging rods, 80-bent angle connecting rods, 45-kidney-shaped connecting rods, 30-T-shaped connecting rods, 30-right-angle connecting rods, 40-cross-shaped connecting rods and 40-meter-shaped connecting rods.
Further, the thickness of connecting rod is 1/2 of splined hole axial length, splined hole and cylindrical shaft sleeve or splined shaft sleeve complex shaft hole structure, and the splined hole forms rotating-structure with the cooperation of circular shaft sleeve, and the splined hole forms fixed knot with the spline shaft cooperation, forms fixed knot and constructs.
Further, the spline shaft sleeve comprises a 10-square hole short key spline shaft sleeve, a 10-square hole long key spline shaft sleeve, a 10-round hole long key spline shaft sleeve, a 20-square hole short key spline shaft sleeve, a 20-square hole long key spline shaft sleeve and a 20-round hole long key spline shaft sleeve.
Furthermore, a square hole is arranged, a part of round shafts are arranged on the spline shaft sleeve body, a part of spline shafts are provided with four short keys, and 10-square hole short key spline shaft sleeves on the excircle of the spline shaft sleeve are distributed at 90 degrees;
the spline shaft sleeve is provided with a square hole, four long keys are arranged on the spline shaft sleeve body, and a 10-square hole long key spline shaft sleeve on the excircle of the spline shaft sleeve is distributed according to 90 degrees;
the spline shaft sleeve is provided with a round hole, four long keys are arranged on the spline shaft sleeve body, and a 10-round hole long key spline shaft sleeve is distributed on the excircle of the spline shaft sleeve at 90 degrees;
the spline shaft sleeve is provided with a square hole, a part of round shaft is arranged on the spline shaft sleeve body, a part of spline shaft is provided with four short keys, and 20-square hole short key spline shaft sleeves on the excircle of the spline shaft sleeve are distributed at 90 degrees;
the spline shaft sleeve is provided with a square hole, four long keys are arranged on the spline shaft sleeve body, and a 20-square hole long key spline shaft sleeve on the excircle of the spline shaft sleeve is distributed according to 90 degrees;
the spline shaft sleeve is provided with a round hole, four long keys are arranged on the spline shaft sleeve body, and 20-round hole long key spline shaft sleeves are distributed on the excircle of the spline shaft sleeve at 90 degrees.
Furthermore, spline shaft sleeves of various types are inserted and assembled, and the outer diameter and the inner diameter of each spline shaft sleeve are fixedly matched; the spline shaft sleeve is inserted into the spline hole by adopting a square hole short key, the key shaft is fixedly matched in part insertion, and the round shaft is rotatably matched in part insertion.
Furthermore, the connecting main body, the spline shaft sleeve and the connecting rod body are formed by injection molding of engineering plastics.
Compared with the prior art, the invention has the following advantages and positive effects.
1. Through the size and the shape that change main part cross jack, cross plug, realize in the horizontal terminal surface with the current cartridge position 90 degrees position of pegging graft, increase a cartridge position of main part, obtain multiple cartridge mode, the very big cartridge combination that makes things convenient for the main part. Through the plug-in mounting combination of main part terminal groove and terminal, can realize 2 side sliding fit of main part. Through the cartridge combination of main part splined hole and square hole cylindrical sleeve, can realize the normal running fit of cylindrical sleeve in the splined hole, the cartridge combination of main part splined hole and square hole spline sleeve, can realize the fixed fit of integral key shaft sleeve in the splined hole, the cartridge combination of main part splined hole and round hole spline sleeve, can realize the external diameter of spline sleeve and the fixed fit of splined hole, the round hole of spline sleeve and the normal running fit of square shaft simultaneously. The main body part and other parts are combined, so that various structures can be built, and various mechanical transmissions such as parallel, vertical, crossed and linear transmissions can be formed;
2. the Danish Gao part adopts a single round hole or cross hole structure, the round hole is used for rotation, the cross hole is used for fixation, the position of the round hole cannot be fixed, and the position of the cross hole cannot be rotated; the spline hole structure is a composite structure integrating the round hole and the spline groove, the cylindrical shaft sleeve is inserted into the spline hole and can rotate, the spline shaft sleeve can be inserted into the spline hole and can be fixed, one hole is multipurpose and is locked by a single hole, and the spline hole structure is not only a transmission hole but also a fixed hole and can simultaneously have double functions of fixing and transmission;
3. german hui fish part adopts hexahedron, six face groove (wedge groove) structures, its advantage: hexahedron parts can be inserted and combined in six surfaces; the disadvantages are that: due to the adoption of the single-point extrusion type friction locking technology of the round wedge (terminal), the structure is lack of stability, particularly the torsion resistance of the part plug-in combination is poor, and the part plug-in combination is easy to loosen; the main body part adopts a plug-in mounting method of a spline hole structure, a tenon-and-mortise structure and a wedge-shaped structure, is stable, convenient and simple to insert and is superior to a German 'hui fish' structure. The main body part is used as a main part of the combined mechanical model, and is matched with parts such as other wheel shafts, various modularized combined mechanical models can be inserted in a self-forming system, so that the insertion mode of the German 'Hui fish' brand is realized;
4. the shaft hole structure of the Legao can only realize the insertion combination of four surfaces at most in the hexahedral parts; the main body part of the scheme can form six hexahedron and multidirectional plug-in combination, and 1+ nn change is realized; the traditional mortise and tenon structure is used for combining mechanical models, which is still the first creation in teaching toy and model industries; the main body piece and the connecting rod can be matched with each other, and an industrial practical auxiliary model with larger volume, more harmonious proportion and more complex structure is built;
5. the Legao model structure, the hole-to-hole pitch is the English modulus of 8 systems; according to the combined mechanical model, the hole-to-hole distance is a metric modulus of 10 carry, so that the combined mechanical model accords with a universal method for measurement and calculation in China and is convenient for learning mechanical design and calculation;
6. the main body part of the scheme breaks through the traditional building block structure, can realize an industrialized frame structure, supports various parallel transmission, vertical transmission, cross transmission and linear transmission in the frame, meets the requirement of industrial technology learning, and combines the learning activity with the actual industrial technology;
7. the naked eye expression has the advantages of simple structure, clear built mechanical transmission, visualization and suitability for developing teaching activities.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of an embodiment 1 of a main body part of a combined mechanical model according to the present invention;
FIG. 2 is a schematic structural view of an embodiment 2 of a main body part of a combined mechanical model according to the present invention;
FIG. 3 is a schematic structural view of an embodiment 3 of a main body part of a combined mechanical model according to the present invention;
FIG. 4 is a schematic structural view of an embodiment 4 of a main body part of a combined mechanical model according to the present invention;
FIG. 5 is a schematic structural view of an embodiment 1 of a plug main body part of a combined mechanical model according to the present invention;
FIG. 6 is a schematic structural view of an embodiment 2 of a plug main body part of a combined mechanical model according to the present invention;
FIG. 7 is a schematic structural view of an embodiment 3 of a plug main body part of a combined mechanical model according to the present invention;
FIG. 8 is a schematic structural view of an embodiment 4 of a plug body member of a combined mechanical model according to the present invention;
FIG. 9 is a schematic structural view of an embodiment 5 of a plug body member of a combined mechanical model according to the present invention;
FIG. 10 is a schematic view of the structure of the terminal body member of embodiment 1 according to the present invention;
FIG. 11 is a schematic view of the structure of the terminal body member of embodiment 2 of the combined mechanical model according to the present invention;
FIG. 12 is a schematic view of the structure of the terminal body member according to embodiment 3 of the present invention in a combined mechanical model;
fig. 13 is a schematic structural view of a terminal plug body member embodiment 1 according to an assembled mechanical model of the present invention;
fig. 14 is a schematic structural view of an embodiment 2 of a terminal plug main body member according to an assembled mechanical model of the present invention;
fig. 15 is a schematic structural view of a terminal plug body member embodiment 3 according to an assembled mechanical model of the present invention;
FIG. 16 is a schematic structural view of a terminal groove plug main body I according to a combined mechanical model of the present invention;
FIG. 17 is a schematic view of the structure of a terminal slot plug body II of the combined mechanical model of the present invention;
FIG. 18 is a schematic view of a terminal groove body member of the combined mechanical model of the present invention;
FIG. 19 is a schematic view of a circular shaft main body of the combined mechanical model of the present invention;
FIG. 20 is a schematic view of an embodiment 1 of an angle main body of a combined mechanical model according to the present invention;
FIG. 21 is a schematic structural view of an embodiment 2 of an angle main body of a combined mechanical model according to the present invention;
FIG. 22 is a schematic view of a spline hole of a combined mechanical model according to the present invention;
FIG. 23 is a schematic view of a cross-shaped socket and a terminal groove of the combined mechanical model according to the present invention;
FIG. 24 is a schematic view of a cross plug structure of a combined mechanical model according to the present invention;
FIG. 25 is a schematic view of the construction of a 10-square hole short key spline housing of the present invention;
FIG. 26 is a schematic view of a 10-square hole spline shaft sleeve with long keys according to the present invention;
FIG. 27 is a schematic view of the 10-round hole long key spline housing of the present invention;
FIG. 28 is a schematic structural view of a 20-square hole short key spline housing of the present invention;
FIG. 29 is a schematic view of the 20-square hole spline shaft sleeve with long keys according to the present invention;
FIG. 30 is a schematic view of the 20-round hole long key spline housing of the present invention;
FIG. 31 is a schematic view of a 20-2 hole link structure of a combined mechanical model link structure according to the present invention;
FIG. 32 is a schematic view of a 25-2 hole link structure of the combined mechanical model link structure of the present invention;
FIG. 33 is a schematic view of a 30-3 hole link structure of the combined mechanical model link structure of the present invention;
FIG. 34 is a schematic view of a 40-3 hole link structure of a combined mechanical model link structure according to the present invention;
FIG. 35 is a schematic view of a link structure of a combined mechanical model according to the present invention, showing a 50-5 hole link structure;
FIG. 36 is a schematic view of a link structure of a combined mechanical model according to the present invention, showing a link structure with 60-5 holes;
FIG. 37 is a schematic view of a combined mechanical model link structure of the present invention, showing a 70-7 hole link structure;
FIG. 38 is a schematic view of a 90-9 hole link configuration of a combined mechanical model link configuration according to the present invention;
FIG. 39 is a schematic view of a link structure of a combined mechanical model according to the present invention, showing a 110-11 hole link structure;
FIG. 40 is a schematic view of a 130-13 hole link structure of a combined mechanical model link structure according to the present invention;
FIG. 41 is a schematic view of a link structure of a combined mechanical model according to the present invention, and a 70-long hole swing link structure;
FIG. 42 is a schematic view of a 80-corner link configuration of a composite mechanical model link configuration of the present invention;
FIG. 43 is a schematic view of a 45-Buck linkage structure of the combined mechanical model linkage structure according to the present invention;
FIG. 44 is a schematic view of a 30-T link configuration of the present invention involving a combination mechanical model link configuration;
FIG. 45 is a schematic view of a 30-right angle linkage structure of a combined mechanical model linkage structure according to the present invention;
FIG. 46 is a schematic view of a 40-ten type link structure of a combined mechanical model link structure according to the present invention;
FIG. 47 is a schematic view of a 40-m-shaped link structure of the combined mechanical model of the present invention.
Reference numerals:
1. a splined bore; 2. a cross jack; 3. a terminal groove; 4. a cross double plug; 5. a dual plug body member; 6. an optical axis; 11. a square hole; 12. a circular hole; 15. a short bond; 16. a long bond; 21. a splined bore; 22. and (4) sinking the platform.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The following detailed description of specific embodiments of the invention refers to the accompanying drawings.
As shown in fig. 1-24, the invention is a combined mechanical model, which comprises a main body, wherein the main body is provided with a spline hole, a cross-shaped jack and a terminal groove, the spline hole is a cross-shaped spline hole with a modulus of 10 as the uniform distribution, the spline hole is arranged on the rim of a round hole, and four cross-shaped cuboid key grooves are arranged at 90 degrees; the cross jack is a symmetrical cross jack, and the shape of a cross plug of the cross jack is a symmetrical right cross jack; the terminal groove is a wedge-shaped structure, and the shape of the terminal groove is a dovetail structure.
Preferably, the body piece comprises the following specifications;
the main body part is provided with three spline holes, three pairs of axial and radial cross double insertion holes and 30-main body parts with a pair of radial terminal grooves;
20-main body part with a spline hole, three pairs of radial pair of cross double insertion holes and radial pair of terminal grooves;
a 15-offset hole main body piece with a spline hole, 2 axial pairs of radial pair of cross double insertion holes and one axial pair of radial terminal grooves;
15-main body part with a spline hole, a pair of cross-shaped jacks in axial and radial directions and a pair of terminal slots in axial and radial directions;
the plug comprises 30-plug main body parts, wherein the plug main body parts comprise three spline holes, three pairs of axial radial one-pair cross jacks, one pair of radial terminal grooves and a cross double plug arranged at the other radial end;
the plug comprises a 10-plug main body part which is provided with a spline hole, a pair of cross-shaped jacks in the axial direction and the radial direction, a pair of terminal grooves in the radial direction and a pair of cross-shaped double plugs at the other end in the radial direction;
the 10-double plug main body part is provided with a spline hole, a pair of cross double insertion holes in the axial direction, a pair of terminal grooves in the radial direction and two pairs of cross double plugs at the other two ends in the radial direction;
the 05-double plug main body part is provided with a spline hole, a pair of terminal grooves are arranged at two radial ends of the spline hole, and two pairs of cross plugs are axially arranged on the spline hole;
the plug comprises a spline hole, a pair of cross-shaped jacks in the axial direction and the radial direction, a pair of terminal grooves in the radial direction, and 10-right-angle plug main body parts of cross-shaped double plugs distributed at right angles at the two ends in the axial direction and the radial direction;
a 20-terminal piece which is provided with a spline hole, three pairs of radial pair of cross double insertion holes, a pair of terminal grooves in the radial direction, a terminal groove at one end in the radial direction and a terminal at the other end;
the 10-terminal main body piece is provided with a spline hole, a pair of cross double insertion holes in the axial direction and the radial direction, a pair of terminal grooves in the radial direction and a terminal at one end in the radial direction;
the 10-double-terminal main body piece is provided with a spline hole, a pair of cross-shaped jacks in the axial direction and the radial direction, a pair of terminal grooves in the radial direction and terminals at the other two radial ends;
the 20-terminal plug main body part is provided with a spline hole, three pairs of axial and radial cross double insertion holes, a pair of radial terminal grooves, a cross double plug at one radial end and a terminal at the other radial end;
the 10-terminal plug main body part is provided with a spline hole, a pair of cross double-jack holes in the axial direction and the radial direction, a pair of terminal grooves in the radial direction, a cross double-plug at one radial end and a terminal at the other radial end;
the 10-terminal plug right-angle main body part is provided with a spline hole, a pair of cross-shaped jacks in the radial direction and the axial direction, a pair of terminal grooves at the other end in the radial direction, a cross-shaped plug at one end in the axial direction and a terminal at one end in the radial direction;
a 10-terminal groove plug main body which is provided with a pair of cross-shaped jacks, a pair of cross-shaped double plugs and five other terminal grooves on the end surfaces;
a 05-terminal groove plug body II having a pair of cross plugs and a terminal groove on the opposite end faces of the plugs;
a 10-terminal groove main body piece which is provided with a pair of cross-shaped jacks and six terminal grooves on six sides of the right cubic body;
the 10-round shaft main body piece is provided with a spline hole, a pair of cross-shaped jacks in the axial direction and the radial direction, a pair of terminal grooves in the radial direction and a round shaft at the other end in the radial direction;
the main body part is a 15-degree angle with an included angle of 15 degrees between the terminal surfaces, wherein the terminal surfaces are provided with a pair of terminal grooves in the axial direction and a pair of terminal grooves in the radial direction;
the plug comprises a spline hole, a pair of axial cross-shaped jacks, a pair of terminal grooves, a terminal groove at one end of the other end of the radial cross-shaped jacks, and a main body piece at the other end of the radial cross-shaped jacks, wherein the main body piece is a terminal with two sides forming an included angle of 30 degrees.
Preferably, the spline hole is matched with the cylindrical shaft sleeve or the shaft hole structure matched with the spline shaft sleeve to form a rotating structure, and the spline hole is matched with the spline shaft to form a fixed structure; the cross jack and the cross plug are inserted to form a stable structure of various frames in insertion combination by adopting a concave-convex structure matched with the cross jack and the cross plug; the wedge-shaped structure that the terminal groove is matched with the terminal is adopted, and the terminal groove is matched with the terminal to form sliding fit of the terminal in the terminal groove.
Preferably, the connecting rod and the special-shaped connecting rod are both formed by injection molding of engineering plastics, and have good insertion assembling performance and engineering structural performance.
This structure is through the size and the shape that change main part spare cross jack, cross plug, realizes in the horizontal terminal surface with the current cartridge that grafting position turned to 90 degrees position, increases a cartridge position of main part spare, obtains multiple cartridge mode, the very big cartridge combination that makes things convenient for the main part spare. Through the plug-in mounting combination of main part terminal groove and terminal, can realize 2 side sliding fit of main part. Through the cartridge combination of main part splined hole and square hole cylindrical sleeve, can realize the normal running fit of cylindrical sleeve in the splined hole, the cartridge combination of main part splined hole and square hole spline sleeve, can realize the fixed fit of integral key shaft sleeve in the splined hole, the cartridge combination of main part splined hole and round hole spline sleeve, can realize the external diameter of spline sleeve and the fixed fit of splined hole, the round hole of spline sleeve and the normal running fit of square shaft simultaneously. The main body piece and other parts are combined, so that various structures can be built, and various mechanical transmissions such as parallel, vertical, crossed and linear transmissions can be formed.
As shown in fig. 31-47, the connecting rod body includes a plurality of connecting rods and a plurality of special-shaped connecting rods, each connecting rod and each special-shaped connecting rod is provided with a spline hole and a sinking platform, the number of the spline holes and the sinking platforms are different, the specifications are different, the spline holes of the connecting rods are distributed by taking a fixed distance as a modulus, the spline holes are arranged on the rim of the circular hole and are coaxially arranged, and the inner ring of the spline hole is provided with a rectangular key groove; the sinking platform is formed by arranging 2 cylindrical sinking platforms which are larger than the spline hole on the axial end face of the spline hole and used for sinking the shaft sleeve cap.
Preferably, the spline holes on the connecting rod are distributed by taking 10 mm as a modulus, the spline holes are shaped on the rim of the circular hole, and eight rectangular cuboid key grooves shaped like a Chinese character 'mi' are formed at 45 degrees; the sinking platform is formed by arranging 2 cylindrical sinking platforms which are larger than the spline hole on the axial end face of the spline hole and used for sinking the shaft sleeve cap.
Preferably, the connecting rod comprises the following specifications;
a 20-2 hole connecting rod with 2 sinking platforms and spline holes;
a 25-2 hole connecting rod with 2 sinking platforms and spline holes;
30-3 hole connecting rods with 3 sinking platforms and spline holes;
a 40-3 hole connecting rod with 3 sinking platforms and spline holes;
a 50-5 hole connecting rod with 5 sinking platforms and spline holes;
a 60-5 hole connecting rod with 5 sinking platforms and spline holes;
a 70-7 hole connecting rod with 7 sinking platforms and spline holes;
a 90-9 hole connecting rod with 9 sinking platforms and spline holes;
a 110-11 hole connecting rod with 11 sinking platforms and spline holes;
a 130-13 hole connecting rod with 13 sinking platforms and spline holes;
a 70-long hole swing rod with 3 sinking platforms, spline holes and a long hole;
an 80-corner connecting rod with 10 sinking platforms, spline holes and 2 45-degree corners;
the T-shaped 30-T connecting rod is provided with 5 sinking platforms and spline holes;
the 30-right-angle connecting rod is provided with 5 sinking platforms, spline holes and a right-angle shape;
a 45-Bu-shaped connecting rod with 5 sinking platforms, spline holes and Bu-shaped;
5 sinking platforms, spline holes and a cross 40-ten connecting rod are arranged;
the device is provided with 7 sinking platforms, spline holes and a 40-meter shape in a meter shape.
Preferably, the connecting rod comprises the following specifications;
the connecting rod is 20-2 holes, namely the length of the connecting rod is 20 mm, and the connecting rod is provided with 2 sinking platforms and spline holes;
25-2 hole connecting rods, 30-3 hole connecting rods, 40-3 hole connecting rods, 50-5 hole connecting rods, 60-5 hole connecting rods, 70-7 hole connecting rods, 90-9 hole connecting rods, 110-11 hole connecting rods and 130-13 hole connecting rods.
Preferably, the special-shaped connecting rods comprise a 70-long hole swinging rod, an 80-bent angle connecting rod, a 45-Buck-shaped connecting rod, a 30-T-shaped connecting rod, a 30-right angle connecting rod, a 40-cross-shaped connecting rod and a 40-Mi-shaped connecting rod.
Preferably, the thickness of connecting rod is 1/2 of splined hole axial length, splined hole and cylindrical shaft sleeve or splined shaft sleeve complex shaft hole structure, and the splined hole forms rotating-structure with the cooperation of circular shaft sleeve, and the splined hole forms fixed knot with the spline shaft cooperation, forms fixed knot.
Preferably, the connecting rod and the special-shaped connecting rod are both formed by injection molding of engineering plastics, and have good insertion assembling performance and engineering structural performance.
Various structures of the structure form various insertion forms, the size modulus of the insertion combination of the connecting rod and adjacent parts is ensured by adding the connecting rod splined hole and the sinking platform, the interference problem of the transmission fit of the connecting rod and the connecting rod is solved, and the rotary fit of the connecting rod and the circular shaft sleeve can be formed by the insertion of the connecting rod splined hole and the circular shaft sleeve; the spline hole of the connecting rod is inserted into the spline shaft sleeve, so that the connecting rod can be fixedly matched with the spline shaft sleeve; the plug-in mounting combination of the connecting rod and the main body part can be realized through the spline shaft sleeve.
The Danish Gao part adopts a single round hole or cross hole structure, the round hole is used for rotation, the cross hole is used for fixation, the position of the round hole cannot be fixed, and the position of the cross hole cannot be rotated; the spline hole structure is a composite structure integrating the round hole and the spline groove, the cylindrical shaft sleeve is inserted into the spline hole and can rotate, the spline shaft sleeve can be inserted into the spline hole and can be fixed, one hole is multipurpose and is locked by a single hole, and the spline hole structure is not only a transmission hole but also a fixed hole and can simultaneously have double functions of fixing and transmission; the connecting rod structure of this scheme is superior to the connecting rod structure of happy height from structure, function aspect, and as the essential part of intention combination mechanical model, parts such as cooperation other shaft can build various intention combination mechanical model by the system of oneself. Realizing the building mode of the 'le Gao' brand; the Legao model structure, the hole-to-hole pitch is the English modulus of 8 systems; according to the creative combined mechanical model, the hole-to-hole distance is a metric modulus of 10 carry, the method conforms to the general method of measurement and calculation in China, and the mechanical design and calculation are convenient to learn; the invention breaks through the traditional building block structure, can realize an industrialized frame structure, supports various parallel transmission, vertical transmission, cross transmission and linear transmission in the frame, meets the requirement of industrial technology learning, and combines the learning activity with the actual industrial technology; the naked eye expression is realized, and the creative combined mechanical model is simple in structure, and various mechanical transmissions built are clear at a glance, visual and suitable for developing teaching activities.
As shown in fig. 25-30, the hole of spline shaft sleeve is the connecting hole, the connecting hole is round hole 2 or square hole 1, spline shaft sleeve's kind includes 1 spline shaft sleeve of square hole and 2 spline shaft sleeves of round hole, 1 spline shaft sleeve of square hole includes 1 short key 5 spline shaft sleeve of square hole and 1 long key 6 spline shaft sleeve of square hole, it has four square keys to distribute according to the 90 degrees angle on the spline shaft sleeve excircle, the square key includes short key 5 and long key 6, it is 5 spline shaft sleeves of short key that the key length is less than half length of spline shaft sleeve, it is 6 spline shaft sleeves of long key that the key length is greater than more than half length of spline shaft sleeve, accomplish the spline shaft sleeve of different specifications and assemble.
Preferably, the spline shaft sleeve is divided into 2 series, one is 10 series, and the length of the spline shaft sleeve is 10 mm; the other is 20 series, the length of the spline shaft sleeve is 20 mm, and the spline shaft sleeve comprises a 10-square hole 1 short key 5 spline shaft sleeve, a 10-square hole 1 long key 6 spline shaft sleeve, a 10-round hole 2 long key 6 spline shaft sleeve, a 20-square hole 1 short key 5 spline shaft sleeve, a 20-square hole 1 long key 6 spline shaft sleeve and a 20-round hole 2 long key 6 spline shaft sleeve.
Preferably, a square hole 1 is arranged, a part of round shafts are arranged on the spline shaft sleeve body, four short keys 5 are arranged on part of the spline shafts, and spline shaft sleeves are distributed on the 10-square hole 1 short keys 5 on the excircle of the spline shaft sleeve according to 90 degrees;
the spline shaft sleeve is provided with a square hole 1, four long keys 6 are arranged on the spline shaft sleeve body, and 10-square hole 1 long key 6 spline shaft sleeves on the excircle of the spline shaft sleeve are distributed at 90 degrees;
the spline shaft sleeve is provided with a round hole 2, four long keys 6 are arranged on the spline shaft sleeve body, and 10-round hole 2 long key 6 spline shaft sleeves are distributed on the excircle of the spline shaft sleeve at 90 degrees;
the spline shaft sleeve is provided with a square hole 1, a part of round shaft is arranged on the spline shaft sleeve body, a part of spline shaft is provided with four short keys 5, and 20-square hole 1 short key 5 spline shaft sleeves on the excircle of the spline shaft sleeve are distributed at 90 degrees;
the spline shaft sleeve is provided with a square hole 1, four long keys 6 are arranged on the spline shaft sleeve body, and 20-square hole 1 long key 6 spline shaft sleeves are distributed on the excircle of the spline shaft sleeve at 90 degrees;
the spline shaft sleeve is provided with a round hole 2, four long keys 6 are arranged on the spline shaft sleeve body, and 20-round holes 2 and the long keys 6 on the excircle of the spline shaft sleeve are distributed at 90 degrees.
Preferably, the spline shaft sleeves of multiple types are inserted and assembled, and the outer diameter and the inner diameter of each spline shaft sleeve are fixedly matched; the spline shaft sleeve with the square hole 1 and the short key 5 is inserted into the spline hole, the key shaft is fixedly inserted into the spline shaft sleeve, the round shaft is rotatably inserted into the spline shaft sleeve, the square shaft is inserted into the spline hole 1 and the short key 5, the round shaft rotates in the spline hole, and the spline part can drive the gear to rotate synchronously, so that perfect transmission fit between one part and three parts is realized; by inserting the round hole 2 and the long key 6 into the spline shaft sleeve, 2 parts can be fixed, and the square shaft can rotate to form non-interference rotation fit, so that coaxial transmission of more than 3 gears is realized, the transmission structure is simplified, and the transmission space is saved.
Preferably, the spline shaft sleeve is integrally formed by injection molding of engineering plastics, and has good insertion assembly and engineering structural performance.
This structure is to the actual problem of intention combination mechanical model structure, if, mortise-tenon joint structure (unsmooth cartridge), wedge structure (slip cartridge) and spline hole structure (shaft hole cartridge) etc., the improvement and the perfection of system have been carried out, adopted with "happy gao" and relevant product, completely different technical structure, make "intention combination mechanical model" in the compactedness, stability, convenience and variability have unique design, the combination has existed with main part or connecting rod to the integral key shaft cover structure, traditional building blocks structure has been broken through, can realize the frame construction of industrialization, support various parallel drive in the frame, vertical drive, cross drive and straight line drive, accord with the requirement of industrial technology study, make the study activity and the actual of industrial technology combine together.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (10)
1. The combined mechanical model is characterized in that: the connecting rod comprises a plurality of connecting main bodies, a plurality of spline shaft sleeves and a plurality of connecting rod bodies which are matched;
the hole of spline axle sleeve is the connecting hole, and the connecting hole is round hole or square hole, and the kind of spline axle sleeve includes square hole spline axle sleeve and round hole spline axle sleeve, and square hole spline axle sleeve includes square hole short key spline axle sleeve and square hole long key spline axle sleeve, and it has four square keys to press the angle of 90 degrees to distribute on the spline axle sleeve excircle, and the square key includes short key and long key, and what the key length is less than half length of spline axle sleeve is short key spline axle sleeve, and what the key length is greater than half more than spline axle sleeve length is long key spline axle sleeve
The connecting rod body comprises a plurality of connecting rods and a plurality of special-shaped connecting rods, each connecting rod and each special-shaped connecting rod are provided with a spline hole and a sinking platform, the number of the spline holes and the number of the sinking platforms are different, the specifications are different, the spline holes of the connecting rods are distributed by taking a fixed distance as a modulus, the spline holes are arranged on the rim of the round hole and are coaxially arranged, and the inner ring of each spline hole is provided with a cuboid key groove; the sinking platform is formed by arranging 2 cylindrical sinking platforms which are larger than the spline hole on the axial end surface of the spline hole and are used for sinking the shaft sleeve cap;
the connecting main body comprises a main body piece, wherein a spline hole, a cross-shaped jack and a terminal groove are formed in the main body piece, the spline hole is a cross-shaped spline hole with a modulus of 10 as the modulus, the spline hole is formed in the rim of a round hole, and four cross-shaped cuboid key grooves are formed in the round hole at 90 degrees; the cross jack is a symmetrical cross jack, and the shape of the cross plug is a symmetrical right cross jack; the terminal groove is of a wedge-shaped structure, and the shape of the terminal groove is of a dovetail structure.
2. The combined mechanical model of claim 1, wherein: the main body piece comprises the following specifications;
the main body part is provided with three spline holes, three pairs of axial and radial cross double insertion holes and 30-main body parts with a pair of radial terminal grooves;
20-main body part with a spline hole, three pairs of radial pair of cross double insertion holes and radial pair of terminal grooves;
a 15-offset hole main body piece with a spline hole, 2 axial pairs of radial pair of cross double insertion holes and one axial pair of radial terminal grooves;
15-main body part with a spline hole, a pair of cross-shaped jacks in axial and radial directions and a pair of terminal slots in axial and radial directions;
the plug comprises 30-plug main body parts, wherein the plug main body parts comprise three spline holes, three pairs of axial radial one-pair cross jacks, one pair of radial terminal grooves and a cross double plug arranged at the other radial end;
the plug comprises a 10-plug main body part which is provided with a spline hole, a pair of cross-shaped jacks in the axial direction and the radial direction, a pair of terminal grooves in the radial direction and a pair of cross-shaped double plugs at the other end in the radial direction;
the 10-double plug main body part is provided with a spline hole, a pair of cross double insertion holes in the axial direction, a pair of terminal grooves in the radial direction and two pairs of cross double plugs at the other two ends in the radial direction;
the 05-double plug main body part is provided with a spline hole, a pair of terminal grooves are arranged at two radial ends of the spline hole, and two pairs of cross plugs are axially arranged on the spline hole;
the plug comprises a spline hole, a pair of cross-shaped jacks in the axial direction and the radial direction, a pair of terminal grooves in the radial direction, and 10-right-angle plug main body parts of cross-shaped double plugs distributed at right angles at the two ends in the axial direction and the radial direction;
a 20-terminal piece which is provided with a spline hole, three pairs of radial pair of cross double insertion holes, a pair of terminal grooves in the radial direction, a terminal groove at one end in the radial direction and a terminal at the other end;
the 10-terminal main body piece is provided with a spline hole, a pair of cross double insertion holes in the axial direction and the radial direction, a pair of terminal grooves in the radial direction and a terminal at one end in the radial direction;
the 10-double-terminal main body piece is provided with a spline hole, a pair of cross-shaped jacks in the axial direction and the radial direction, a pair of terminal grooves in the radial direction and terminals at the other two radial ends;
the 20-terminal plug main body part is provided with a spline hole, three pairs of axial and radial cross double insertion holes, a pair of radial terminal grooves, a cross double plug at one radial end and a terminal at the other radial end;
the 10-terminal plug main body part is provided with a spline hole, a pair of cross double-jack holes in the axial direction and the radial direction, a pair of terminal grooves in the radial direction, a cross double-plug at one radial end and a terminal at the other radial end;
the 10-terminal plug right-angle main body part is provided with a spline hole, a pair of cross-shaped jacks in the radial direction and the axial direction, a pair of terminal grooves at the other end in the radial direction, a cross-shaped plug at one end in the axial direction and a terminal at one end in the radial direction;
a 10-terminal groove plug main body which is provided with a pair of cross-shaped jacks, a pair of cross-shaped double plugs and five other terminal grooves on the end surfaces;
a 05-terminal groove plug body II having a pair of cross plugs and a terminal groove on the opposite end faces of the plugs;
a 10-terminal groove main body piece which is provided with a pair of cross-shaped jacks and six terminal grooves on six sides of the right cubic body;
the 10-round shaft main body piece is provided with a spline hole, a pair of cross-shaped jacks in the axial direction and the radial direction, a pair of terminal grooves in the radial direction and a round shaft at the other end in the radial direction;
the main body part is a 15-degree angle with an included angle of 15 degrees between the terminal surfaces, wherein the terminal surfaces are provided with a pair of terminal grooves in the axial direction and a pair of terminal grooves in the radial direction;
the plug comprises a spline hole, a pair of axial cross-shaped jacks, a pair of terminal grooves, a terminal groove at one end of the other end of the radial cross-shaped jacks, and a main body piece at the other end of the radial cross-shaped jacks, wherein the main body piece is a terminal with two sides forming an included angle of 30 degrees.
3. The combined mechanical model of claim 1, wherein: the spline hole is matched with the cylindrical shaft sleeve or the spline shaft sleeve to form a rotating structure, and the spline hole is matched with the spline shaft to form a fixed structure; the cross jack and the cross plug are inserted to form a stable structure of various frames in insertion combination by adopting a concave-convex structure matched with the cross jack and the cross plug; the wedge-shaped structure that the terminal groove is matched with the terminal is adopted, and the terminal groove is matched with the terminal to form sliding fit of the terminal in the terminal groove.
4. The connecting rod structure of a combined mechanical model according to claim 1, characterized in that: the connecting rod comprises the following specifications;
a 20-2 hole connecting rod with 2 sinking platforms and spline holes;
a 25-2 hole connecting rod with 2 sinking platforms and spline holes;
30-3 hole connecting rods with 3 sinking platforms and spline holes;
a 40-3 hole connecting rod with 3 sinking platforms and spline holes;
a 50-5 hole connecting rod with 5 sinking platforms and spline holes;
a 60-5 hole connecting rod with 5 sinking platforms and spline holes;
a 70-7 hole connecting rod with 7 sinking platforms and spline holes;
a 90-9 hole connecting rod with 9 sinking platforms and spline holes;
a 110-11 hole connecting rod with 11 sinking platforms and spline holes;
a 130-13 hole connecting rod with 13 sinking platforms and spline holes;
a 70-long hole swing rod with 3 sinking platforms, spline holes and a long hole;
an 80-corner connecting rod with 10 sinking platforms, spline holes and 2 45-degree corners;
the T-shaped 30-T connecting rod is provided with 5 sinking platforms and spline holes;
the 30-right-angle connecting rod is provided with 5 sinking platforms, spline holes and a right-angle shape;
a 45-Bu-shaped connecting rod with 5 sinking platforms, spline holes and Bu-shaped;
5 sinking platforms, spline holes and a cross 40-ten connecting rod are arranged;
the device is provided with 7 sinking platforms, spline holes and a 40-meter shape in a meter shape;
the connecting rod is 20-2 holes, namely the length of the connecting rod is 20 mm, and the connecting rod is provided with 2 sinking platforms and spline holes;
25-2 hole connecting rods, 30-3 hole connecting rods, 40-3 hole connecting rods, 50-5 hole connecting rods, 60-5 hole connecting rods, 70-7 hole connecting rods, 90-9 hole connecting rods, 110-11 hole connecting rods and 130-13 hole connecting rods.
5. The connecting rod structure of combined mechanical model according to claim 4, characterized in that: the special-shaped connecting rods comprise a 70-long hole swing rod, an 80-bent angle connecting rod, a 45-Buck-shaped connecting rod, a 30-T-shaped connecting rod, a 30-right angle connecting rod, a 40-cross-shaped connecting rod and a 40-meter-shaped connecting rod.
6. The connecting rod structure of a combined mechanical model according to claim 1, characterized in that: the thickness of connecting rod is 1/2 of splined hole axial length, splined hole and cylindrical shaft sleeve or splined shaft sleeve complex shaft hole structure, and the splined hole forms rotating-structure with the cooperation of circular shaft sleeve, and the splined hole forms fixed knot with the integral key shaft cooperation.
7. The composite mechanical pattern spline housing of claim 1, wherein: the spline shaft sleeve comprises a 10-square hole short key spline shaft sleeve, a 10-square hole long key spline shaft sleeve, a 10-round hole long key spline shaft sleeve, a 20-square hole short key spline shaft sleeve, a 20-square hole long key spline shaft sleeve and a 20-round hole long key spline shaft sleeve.
8. The composite mechanical pattern spline housing of claim 7, wherein: the spline shaft sleeve is provided with a square hole, a part of round shaft is arranged on the spline shaft sleeve body, a part of spline shaft is provided with four short keys, and 10-square hole short key spline shaft sleeves on the excircle of the spline shaft sleeve are distributed at 90 degrees;
the spline shaft sleeve is provided with a square hole, four long keys are arranged on the spline shaft sleeve body, and a 10-square hole long key spline shaft sleeve on the excircle of the spline shaft sleeve is distributed according to 90 degrees;
the spline shaft sleeve is provided with a round hole, four long keys are arranged on the spline shaft sleeve body, and a 10-round hole long key spline shaft sleeve is distributed on the excircle of the spline shaft sleeve at 90 degrees;
the spline shaft sleeve is provided with a square hole, a part of round shaft is arranged on the spline shaft sleeve body, a part of spline shaft is provided with four short keys, and 20-square hole short key spline shaft sleeves on the excircle of the spline shaft sleeve are distributed at 90 degrees;
the spline shaft sleeve is provided with a square hole, four long keys are arranged on the spline shaft sleeve body, and a 20-square hole long key spline shaft sleeve on the excircle of the spline shaft sleeve is distributed according to 90 degrees;
the spline shaft sleeve is provided with a round hole, four long keys are arranged on the spline shaft sleeve body, and 20-round hole long key spline shaft sleeves are distributed on the excircle of the spline shaft sleeve at 90 degrees.
9. The composite mechanical pattern spline housing of claim 7, wherein: the spline shaft sleeves of multiple types are inserted and assembled, and the outer diameter and the inner diameter of each spline shaft sleeve are fixedly matched; the spline shaft sleeve is inserted into the spline hole by adopting a square hole short key, the key shaft is fixedly matched in part insertion, and the round shaft is rotatably matched in part insertion.
10. The combined mechanical model of claim 1, wherein: the connecting main body, the spline shaft sleeve and the connecting rod body are formed by injection molding of engineering plastics.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010975631.0A CN112053621A (en) | 2020-09-16 | 2020-09-16 | Combined mechanical model |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010975631.0A CN112053621A (en) | 2020-09-16 | 2020-09-16 | Combined mechanical model |
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| CN112053621A true CN112053621A (en) | 2020-12-08 |
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| CN2650271Y (en) * | 2003-06-11 | 2004-10-20 | 天津市立隆科技开发有限公司 | Assembled matter teaching aid |
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Application publication date: 20201208 |
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