CN208615406U - A kind of high-mechanic, the composite material tube multistage tooth attachment device of high fatigue property - Google Patents
A kind of high-mechanic, the composite material tube multistage tooth attachment device of high fatigue property Download PDFInfo
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- CN208615406U CN208615406U CN201721306905.7U CN201721306905U CN208615406U CN 208615406 U CN208615406 U CN 208615406U CN 201721306905 U CN201721306905 U CN 201721306905U CN 208615406 U CN208615406 U CN 208615406U
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Abstract
A kind of high-mechanic provided by the utility model, the composite material tube multistage tooth attachment device of high fatigue property, including outer metal tube, inner metal tube, transition metal pipe；The outer metal tube, composite material tube, inner metal tube are set gradually from outer to inner；The frictional force power transmission that power transmission is engaged by tooth between the outer metal tube, inner metal tube and composite material tube and/or is generated by pretightning force；Wherein, equipped with engaged tooth between the outer metal tube and composite material tube, and/or/engaged tooth is equipped between inner metal tube and composite material tube.The connector is of simple structure and low cost, easy to use, cooperation is connected with pretightning force by tooth connection, bearing capacity is high, anti-fatigue performance difference is strong.
Description
Technical field
The utility model relates to composite material interconnection technique fields, and in particular to a kind of high-mechanic, high fatigue property are answered
Condensation material pipe multistage tooth attachment device.
Background technique
Composite material has the characteristics that specific strength is big, specific stiffness is big, therefore obtains in building, traffic and aerospace field
It is widely applied；However, it is to restrict an important factor for material is further applied that composite material joint efficiency is lower.
Traditional composite material connection type mainly has mechanical connection, glue connection, glue-mechanical mixture connection and tooth to connect
It connects, however, there is more problem.First, mechanical connection can divide into drilling via formations and knitting forming from pore-forming mode
Two kinds；Drilling via formations processing damage fiber continuity, the bearing capacity of connector is lower, it is smaller generally to can be only applied to class of loading
Structure in；And the bolt hole of knitting forming maintains the continuity of fiber, strength of joint is significantly improved, but is difficult to connect
Head and large-scale component one-pass molding.Second, although glue connection does not have any weakening to component, the connection type to environment more
Sensitivity, there are problem of aging.Third, glue-mechanical mixture connection in, if there are gap between bolt and bolt hole wall, glue-line with
Bolt is unable to co-ordination, therefore joint efficiency is not also high.Fourth, tooth is connected to during transmitting load, composite material increment
Portion can have biggish peel stress simultaneously because composite material tooth is all single-stage tooth in the connection, causes at composite material tooth
The presence that stress is concentrated causes the joint efficiency not high and poor fatigue properties.
Utility model content
Technical problem: in order to solve the defects of prior art, the utility model provides a kind of high-mechanic, high fatigue property
Composite material tube multistage tooth attachment device.
A kind of technical solution: composite material tube multistage tooth connection of high-mechanic, high fatigue property provided by the utility model
Device, including outer metal tube, inner metal tube, transition metal pipe；
The outer metal tube, composite material tube, inner metal tube are set gradually from outer to inner；
Power transmission is engaged by tooth between the outer metal tube, inner metal tube and composite material tube and/or is generated by pretightning force
Frictional force power transmission；
Wherein, between the outer metal tube and composite material tube be equipped with engaged tooth, and/or/inner metal tube with it is compound
Engaged tooth is equipped between tubes of material；
Wherein, pretightning force is extruded by outer metal tube makes outer metal tube be deformed application and/or inner metal tube extruding
Composite material tube is deformed application；When pretightning force is extruded by outer metal tube, and outer metal tube is made to be deformed application, mistake
Metal tube is crossed to be set between outer metal tube and composite material tube；When composite material tube, which squeezes inner metal tube, generates plasticity application,
Transition metal pipe is set between composite material tube, inner metal tube.
No matter by which kind of mode to composite material tube apply pretightning force, can be produced in metal tube and composite material tube intersection
Raw biggish shearing force, when applying larger pretightning force, composite material tube is easy to be cut up in this way, the setting of transition metal pipe
The shearing force of metal tube and composite material tube intersection can be effectively reduced, it is bigger so as to apply on composite material tube
Pretightning force, to further increase the bearing capacity of connector.
As an improvement, outer metal tube is extruded mode are as follows: clamp device is arranged outside outer metal tube, is squeezed using clamp device
Press outer metal tube.
It is improved as another kind, composite material tube squeezes inner metal tube mode are as follows: lead between composite material tube, inner metal tube
Interference fit connection.
It is improved as another kind, the tooth is single-stage tooth or multistage tooth；The single-stage tooth is right angle tooth, stepped tooth or circular arc
Tooth；The multistage tooth is secondary gear or three-level tooth；Every level-one tooth of the secondary gear be independently right angle tooth, stepped tooth or
Circle-arc tooth；Every level-one tooth of the three-level tooth is independently right angle tooth, stepped tooth or circle-arc tooth.Composite material tube and metal
The series of the tooth of pipe occlusion is selected according to the bearing capacity and fatigue behaviour of connector.
As another kind improve, the outer metal tube, inner metal tube end by welding or be threadedly coupled formed connect
Head is whole.Traditional connector be all by outer metal sleeve or interior metal sleeve and the independent power transmission of composite material tube, will be inside and outside
The integral connector that may be implemented of metal sleeve connection is passed jointly by outer metal sleeve or interior metal sleeve and composite material tube
Power, to further increase the fatigue behaviour of connector.
The utility model has the advantages that connector provided by the utility model is of simple structure and low cost, easy to use, connected by tooth
Cooperation is connected with pretightning force, bearing capacity is high, anti-fatigue performance is strong.
Specifically, the utility model is compared with prior art, remarkable advantage is:
(1) bearing capacity is high: concentrated first by the stress that multistage tooth can effectively reduce composite material tooth root, secondly by
The direct stress of tooth ends can be reduced in the application of pretightning force and improves the interlaminar shear strength of composite material tooth, last inside and outside gold
Belong to being engaged and the common power transmission of frictional force by tooth for pipe.It can effectively improve connector bearing capacity based on these three factors, solve existing
The problem for having composite material interconnection technique joint efficiency low.The fiberglass pipe for being 60mm for outer diameter, wall thickness 6mm, by this
Interconnection technique joint can provide 90 tons, and other interconnection technique bearing capacity highests can achieve 50 tons.
(2) fatigue behaviour is good: can effectively reduce root stress by multistage tooth and concentrate to solve existing composite wood
The problem of expecting tooth connection poor fatigue properties.It is only composite material material that general glass fiber compound material tooth, which connects its fatigue behaviour,
Itself 50%, and the connection type can achieve the 80% of composite material itself fatigue life.
(3) due to the routine operations such as can directly be welded, be cut on metal tube outside connector, the connection type is not only
It may be coextruded the unidirectional connection of material members, multidirectional connection.
Detailed description of the invention
Fig. 1 is the structural representation of the utility model high-mechanic, the composite material tube multistage tooth attachment device of high fatigue property
Figure.
Fig. 2 is the cross-sectional view of the utility model high-mechanic, the composite material tube multistage tooth attachment device of high fatigue property.
Fig. 3 be the utility model high-mechanic, the composite material tube multistage tooth attachment device of high fatigue property it is partially schematic
Figure.
Fig. 4 is the structural schematic diagram of the single-stage tooth of embodiment 1.
Fig. 5 is the structural schematic diagram of the single-stage tooth of embodiment 4.
Fig. 6 is the structural schematic diagram of the single-stage tooth of embodiment 5.
Specific embodiment
The utility model high-mechanic, the composite material tube multistage tooth attachment device of high fatigue property are made further below
Explanation.
Embodiment 1
High-mechanic, the composite material tube multistage tooth attachment device of high fatigue property, are shown in Fig. 1 to 3, including outer metal tube 1, interior
Metal tube 2, transition metal pipe 3；Outer metal tube 1, composite material tube 4, inner metal tube 2 are set gradually from outer to inner；Outer metal tube 1
The tooth being mutually twisted is set between composite material tube 4；Outer metal tube 1 is equipped with clamp device, and transition metal pipe 3 is set to outer gold
Belong between pipe 1 and composite material tube 4.Power transmission is engaged by tooth between outer metal tube 1 and composite material tube 4 and is generated by pretightning force
Frictional force power transmission；The frictional force power transmission generated between inner metal tube 2 and composite material tube 4 by pretightning force；Pretightning force passes through outer
Metal tube 1 makes outer metal tube 1 generate plastic deformation application by clamp device extruding.Outer metal tube 1, the end of inner metal tube 2 are logical
It crosses welding or is threadedly coupled and form connector entirety, common power transmission may be implemented.
Tooth is single-stage tooth；Single-stage tooth is stepped tooth, sees Fig. 4.
The connector is when in use: being mutually matched first in 4 outer surface of composite material tube and the processing of 1 surface of outer metal tube
Tooth；Outer metal tube 1 is assembled with composite material tube 4 again, then outer diameter and composite wood are set inside composite material tube 4
Expect that pipe internal diameter is identical, the biggish inner metal tube 2 of rigidity；Again and by way of squeezing outer metal tube 1, make outer metal tube 1 into
Enter plasticity section to apply biggish radial compressive stress i.e. pretightning force to composite material tube 4；
Embodiment 2
Substantially the same manner as Example 1, the difference is that only: single-stage tooth is right angle tooth.
Embodiment 3
Substantially the same manner as Example 1, the difference is that only: single-stage tooth is circle-arc tooth.
Embodiment 4
High-mechanic, the composite material tube multistage tooth attachment device of high fatigue property, are shown in Fig. 1 and 2, including outer metal tube 1, interior
Metal tube 2, transition metal pipe 3；Outer metal tube 1, composite material tube 4, inner metal tube 2 are set gradually from outer to inner；Outer metal tube 1
It is respectively equipped with engaged multistage tooth between composite material tube 4, is equipped between inner metal tube 2 and composite material tube 4 mutual
The single-stage tooth of occlusion；Pretightning force is applied by fashion of extrusion on outer metal tube 1；Between outer metal tube 1 and composite material tube 4,
Equipped with transition metal pipe 3.Power transmission is engaged by tooth between outer metal tube 1, inner metal tube 2 and composite material tube 4 and by pre-tightening
The frictional force power transmission that power generates.Outer metal tube 1, inner metal tube 2 end by welding or be threadedly coupled formed connector entirety,
Common power transmission may be implemented.
Tooth is multistage tooth；Multistage tooth is secondary gear, sees Fig. 5；The first order tooth of secondary gear 6 is right angle tooth, and second level tooth is
Right angle tooth.
The connector is when in use: processing mutual in 4 inner surface of composite material tube and 2 outer surface of inner metal tube first
The tooth matched；It is arranged that internal diameter is identical as 4 material outer diameter of composite material tube, the biggish outer metal tube of rigidity outside composite material tube 4 again
1, then outer metal tube 1 is assembled with composite material tube 4, so that inner metal tube 2 is entered plasticity section to apply to composite material tube 4
Add biggish radial compressive stress i.e. pretightning force.
Embodiment 5
Substantially the same manner as Example 4, the difference is that only: the first order tooth of secondary gear 6 is right angle tooth, and second level tooth is
Stepped tooth.
Embodiment 6
Substantially the same manner as Example 4, the difference is that only: the first order tooth of secondary gear 6 is stepped tooth, and second level tooth is
Circle-arc tooth.
Embodiment 7
High-mechanic, the composite material tube multistage tooth attachment device of high fatigue property, are shown in Fig. 1 and 2, including outer metal tube 1, interior
Metal tube 2, transition metal pipe 3；Outer metal tube 1, composite material tube 4, inner metal tube 2 are set gradually from outer to inner；Outer metal tube 1
Engaged tooth is equipped between composite material tube 4；It is pre-tightened between composite material tube 4, outer metal tube 1 by squeezing to apply
Power；Transition metal pipe 3 is set between composite material tube 4, outer metal tube 1.Pass through tooth between outer metal tube 1 and composite material tube 4
The frictional force power transmission for being engaged power transmission and being generated by pretightning force, and passed between interior metal sleeve 2 and composite material tube 4 by friction
Power.Outer metal tube 1, inner metal tube 2 end by welding or be threadedly coupled formed connector entirety, may be implemented to pass jointly
Power.
Tooth is multistage tooth；Multistage tooth is three-level tooth, sees Fig. 6；The first order tooth of three-level tooth 7 is right angle tooth, and second level tooth is
Right angle tooth, third level tooth are right angle tooth.
Embodiment 8
Substantially the same manner as Example 4, the difference is that only: first order tooth is stepped tooth, and second level tooth is right angle tooth, the
Three-level tooth is circle-arc tooth.
Comparative example 1
Connector, including outer metal tube 1, transition metal pipe 3；Outer metal tube 1 is socketed on outside composite material tube 4；Outer metal
Engaged tooth is equipped between pipe 1 and composite material tube 4；Outer metal tube 1 is equipped with clamp device.
Tooth is single-stage tooth；Single-stage tooth is stepped tooth, sees Fig. 3.
Comparative example 2 (no transition metal pipe)
Connector, including inner metal tube 2, transition metal pipe 3；Inner metal tube 2 is set in composite material tube 4；Inner metal tube 2
Engaged tooth is respectively equipped between composite material tube 4；Connected between composite material tube 4, inner metal tube 2 by interference fit
It connects.
Tooth is single-stage tooth；Single-stage tooth is stepped tooth, sees Fig. 4.
Comparative example 3 (no transition metal pipe)
Connector, including outer metal tube 1, inner metal tube 2；Outer metal tube 1, composite material tube 4, inner metal tube 2 from outer and
Inside set gradually；It is respectively equipped between outer metal tube 1 and composite material tube 4, between inner metal tube 2 and composite material tube 4 mutually
The tooth of occlusion；Outer metal tube 1 is equipped with clamp device.Outer metal tube 1, inner metal tube 2 end by welding or screw thread connect
It connects to form connector entirety, common power transmission may be implemented.
Tooth is single-stage tooth；Single-stage tooth is stepped tooth, sees Fig. 4.
Comparative example 4 (no transition metal pipe)
Connector, including outer metal tube 1, inner metal tube 2；Outer metal tube 1, composite material tube 4, inner metal tube 2 from outer and
Inside set gradually；It is respectively equipped between outer metal tube 1 and composite material tube 4, between inner metal tube 2 and composite material tube 4 mutually
The tooth of occlusion；Pass through interference fit connection between composite material tube 4, inner metal tube 2.The end of outer metal tube 1, inner metal tube 2
Connector entirety is formed by welding or being threadedly coupled, common power transmission may be implemented.
Tooth is single-stage tooth；Single-stage tooth is stepped tooth, sees Fig. 4.
Testing example 1 to 8, the properties of product of comparative example 1 to 4.
Experimental method:
(1) tension test bearing capacity: is carried out according to ASTMD3846-94 standard
(2) test experiments result anti-fatigue performance: is carried out according to GB/T16779-2008 composite material tensile fatigue test
It is shown in Table 1
One experimental result of table
Claims (6)
1. the composite material tube multistage tooth attachment device of a kind of high-mechanic, high fatigue property, it is characterised in that: including outer metal tube
(1), inner metal tube (2), transition metal pipe (3)；
The outer metal tube (1), composite material tube (4), inner metal tube (2) are set gradually from outer to inner；
Power transmission is engaged by tooth between the outer metal tube (1), inner metal tube (2) and composite material tube (4) and/or by pretightning force
The frictional force power transmission of generation；
Wherein, engaged tooth and/or inner metal tube (2) are equipped between the outer metal tube (1) and composite material tube (4)
Engaged tooth is equipped between composite material tube (4).
2. the composite material tube multistage tooth attachment device of a kind of high-mechanic according to claim 1, high fatigue property, special
Sign is: pretightning force is extruded by outer metal tube (1) to be made outer metal tube (1) be deformed application and/or inner metal tube (2) to squeeze
Pressure composite material tube (4) is deformed application；Outer metal tube (1) is set to generate change when pretightning force is extruded by outer metal tube (1)
When shape applies, transition metal pipe (3) is set between outer metal tube (1) and composite material tube (4)；When composite material tube (4) squeeze
When inner metal tube (2) is deformed application, transition metal pipe (3) is set between composite material tube (4), inner metal tube (2).
3. the composite material tube multistage tooth attachment device of a kind of high-mechanic according to claim 1, high fatigue property, special
Sign is: outer metal tube (1) is extruded mode are as follows: clamp device is arranged outside in outer metal tube (1), is squeezed using clamp device outer
Metal tube (1).
4. the composite material tube multistage tooth attachment device of a kind of high-mechanic according to claim 1, high fatigue property, special
Sign is: composite material tube (4) squeezes inner metal tube (2) mode are as follows: composite material tube (4), inner metal tube passed through between (2)
It is full of mating connection.
5. the composite material tube multistage tooth attachment device of a kind of high-mechanic according to claim 1, high fatigue property, special
Sign is: the tooth is single-stage tooth or multistage tooth；The single-stage tooth is right angle tooth, stepped tooth or circle-arc tooth；It is described multistage tooth be
Secondary gear (6) or three-level tooth (7)；Every level-one tooth of the secondary gear (6) is independently right angle tooth, stepped tooth or circular arc
Tooth；Every level-one tooth of the three-level tooth (7) is independently right angle tooth, stepped tooth or circle-arc tooth.
6. the composite material tube multistage tooth attachment device of a kind of high-mechanic according to claim 1, high fatigue property, special
Sign is: the outer metal tube (1), inner metal tube (2) end by welding or be threadedly coupled formed connector entirety.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017208335642 | 2017-07-11 | ||
| CN201720833564 | 2017-07-11 |
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|---|---|
| CN208615406U true CN208615406U (en) | 2019-03-19 |
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| CN201721306905.7U Expired - Fee Related CN208615406U (en) | 2017-07-11 | 2017-10-11 | A kind of high-mechanic, the composite material tube multistage tooth attachment device of high fatigue property |
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| CN (1) | CN208615406U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107696594A (en) * | 2017-07-11 | 2018-02-16 | 赵启林 | A kind of high-mechanic, the composite material tube multistage tooth attachment means of high fatigue property |
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2017
- 2017-10-11 CN CN201721306905.7U patent/CN208615406U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107696594A (en) * | 2017-07-11 | 2018-02-16 | 赵启林 | A kind of high-mechanic, the composite material tube multistage tooth attachment means of high fatigue property |
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