CN105416562B - A kind of beam of belt lacing - Google Patents
A kind of beam of belt lacing Download PDFInfo
- Publication number
- CN105416562B CN105416562B CN201510881574.9A CN201510881574A CN105416562B CN 105416562 B CN105416562 B CN 105416562B CN 201510881574 A CN201510881574 A CN 201510881574A CN 105416562 B CN105416562 B CN 105416562B
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- China
- Prior art keywords
- bolt
- hole
- connector
- bolt hole
- slotted hole
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/06—Frames; Stringers; Longerons ; Fuselage sections
- B64C1/064—Stringers; Longerons
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a kind of beams of belt lacing, belong to field of airplane structure.Shown structure includes beam (1), connector (2) and connection bolt, it is set on the beam (1) with connector (2) junction there are three bolt hole, three bolts hole are located along the same line, intermediate bolt hole is circular hole, with the connection bolt interference engagement, the bolt hole of both sides is slotted hole, the short side of the slotted hole and the connection bolt interference engagement, the long side of the slotted hole and the connection bolt-clearance cooperation, and the long axis of slotted hole is parallel with support reaction position, the connector (2) with the upper three bolt hole corresponding positions of beam (1) open there are three on beam (1) among the identical bolt hole of bolt hole.The bolt strained form in both sides is simpler in the present invention, load smaller, and middle bolt fastening bear support reaction connecting portion generates it is whole shear, be a kind of clearer connection structure of load path.
Description
Technical field
The invention belongs to field of airplane structure, and in particular to a kind of beam of belt lacing.
Background technology
Due to the needs of power transmission, there are the fabricated structures of a kind of beam and connector in aircaft configuration.Because bear load and
The difference of use environment, beam often use different materials from connector, it is difficult to which they are designed as monolithic construction, it is necessary to
Beam and connector are connected using connector.Connector bears support reaction, and the position of connecting portion and power on connector is often
There is a certain distance, support reaction can generate an additional moment on connecting portion.Several groups are often used in previous design
Rod piece is connected by the bolt of interference engagement with connector.The shearing that connector support reaction generates so is caused to be cut with what additional moment generated
Power is superimposed on connection bolt, and load path is unintelligible.
The content of the invention
To solve the above-mentioned problems, the present invention proposes a kind of beam of belt lacing, including beam, connector and connects bolt,
The beam of the belt lacing belongs to field of airplane structure, is set on the beam with joint there are three bolt hole, three
Bolt hole is located along the same line, and intermediate bolt hole is circular hole, with the connection bolt interference engagement, bears connector support reaction
In the shearing that bonding pad generates；The bolt hole of both sides is slotted hole, and the short side of the slotted hole is matched somebody with somebody with the connection bolt interference
It closes, the long side of the slotted hole and the connection bolt-clearance cooperation, and the long axis of slotted hole is parallel with support reaction position, spiral shell
Bolt can move on long axis direction, be not subject to the shearing that connector support reaction is generated in connecting portion, be only capable of balance additional moment；
The connector with three bolt hole corresponding positions on beam open there are three on beam among the identical bolt hole of bolt hole.
Preferably, the spiro keyhole position of the centre of the beam is on the center of the interface end of the beam, the beam
The straight line parallel that three bolts hole are formed is in the both ends line of the beam.
Preferably, the spiro keyhole position of the centre of the beam is on the center of the interface end of the beam, the beam
The straight line that three bolts hole are formed is perpendicular to the both ends line of the beam.
In said program preferably, the slotted hole is made of the semicircle of intermediate rectangle and both sides, and described half
Circularhole diameter is R, and an edge lengths of rectangle are R, and another edge lengths are L, and the L is 0.2R~0.8R.
The present invention is bolted beam and connector using three groups.And the upper three groups of bolts hole of connector (being inserted into part) are circular hole,
Middle screw keyhole is circular hole on beam (insert), and middle bolt fastening, using interference engagement, bears connector branch with the bolt hole on rod piece
The shearing that counter-force is generated in bonding pad；Both sides bolt hole is slotted hole on beam (insert), and slotted hole long axis is made with support reaction
Parallel with line, both sides bolt becomes clearance fit with slotted hole, and bolt can be moved on long axis direction, i.e., do not held in long axis direction
It is sheared, therefore both sides bolt cannot bear the shearing that connector support reaction is generated in connecting portion, be only capable of balance additional moment.
The bolt strained form in both sides is simpler in the present invention, load smaller, and middle bolt fastening bears support reaction and connecting
Whole shearings that position generates, the present invention is a kind of clearer connection structure of load path.
Description of the drawings
Fig. 1 is the structure diagram of a preferred embodiment of the beam of belt lacing of the present invention.
Fig. 2 is that the beam of embodiment illustrated in fig. 1 opens bolt hole schematic diagram.
Fig. 3 is that the connector of embodiment illustrated in fig. 1 opens bolt hole schematic diagram.
Fig. 4 is slotted hole schematic diagram on the beam of embodiment illustrated in fig. 1.
Fig. 5 opens bolt hole stress diagram for the traditional beam of figure.
Fig. 6 is that traditional beam opens bolt pitch of holes analysis schematic diagram.
Wherein, 1 is beam, and 2 be connector, and 3 be connector, and 4 be slotted hole on the left of beam, and 5 be slotted hole on the right side of beam, and 6 is in beams
Between circular hole, 7 be slotted hole on the left of connector, and 8 be slotted hole on the right side of connector, and 9 be circular hole among connector.
Specific embodiment
To make the purpose, technical scheme and advantage that the present invention is implemented clearer, below in conjunction in the embodiment of the present invention
Attached drawing, the technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class
As label represent same or similar element or there is same or like element.Described embodiment is the present invention
Part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to use
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill people
Member's all other embodiments obtained without creative efforts, belong to the scope of protection of the invention.Under
Face is described in detail the embodiment of the present invention with reference to attached drawing.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or position relationship of the instructions such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " is based on attached drawing institutes
The orientation or position relationship shown is for only for ease of the description present invention and simplifies description rather than instruction or imply signified dress
It puts or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that the present invention is protected
The limitation of scope.
For traditional beam and the shortcoming of the connection structure of connector, the present invention proposes a kind of connection of new beam and connector
Structure, the structure type are simple, it can be achieved that power and the decomposition of torque load path on connector.
As shown in Figure 1, the beam of belt lacing of the present invention, including beam 1, connector 2 and connection bolt, with reference to figure 2, the beam 1
On set with 2 junction of connector there are three bolt hole, three bolts hole are located along the same line, and in-between bolt hole 6 is circle
Hole with bolt using interference engagement, so may be such that middle bolt fastening can bear the shearing of any direction in plane, including connector branch
Counter-force shears caused by connecting portion；Left side bolt hole 4 and right side bolt hole 5 are slotted hole, the short side of the slotted hole with
Connection 3 interference engagement of bolt, the long side of the slotted hole and connection 3 clearance fit of bolt, and the long axis of slotted hole
It is parallel with support reaction position, with reference to figure 3, the connector 2 with three bolt hole corresponding positions on beam 1 open there are three and beam
The identical bolt hole of bolt hole among on 1, specifically, including left side bolt hole 7, right side bolt hole 8 and middle screw keyhole 9,
These three bolts hole and the bolt hole 4,5,6 on beam are coaxial, are bolted together.
In the present embodiment, the spiro keyhole position of the centre of the beam 1 is in the center of the interface end of the beam 1, the beam 1
On three bolts hole formed straight line perpendicular to the beam both ends line, with reference to shown in figure 1, Fig. 2 or Fig. 3.
As an alternate embodiment of above-described embodiment, spiro keyhole position the connecing in the beam 1 of the centre of the beam 1
The center at mouthful end, the straight line parallel that three bolts hole on the beam 1 are formed is in the both ends line of the beam.I.e. with it is above-mentioned
The straight line that the arrangement mode of three bolts hole in embodiment is formed is perpendicular.
In the present embodiment, with reference to figure 4, the slotted hole is made of the semicircle of intermediate rectangle and both sides, the semicircle
Bore dia is R, and an edge lengths of rectangle are R, and another edge lengths are L, and the L is 0.2R~0.8R.
It is understood that the long axis of slotted hole is parallel with support reaction position, so that bolt is in connector support reaction
Direction is unfettered, can free movement, thus the shearing that connector support reaction is generated in connecting portion cannot be born, and in oval spiral shell
On keyhole short-axis direction, both sides bolt suffers restraints, it is impossible to which free movement can be used to bear additional moment in connecting portion generation
Shearing.
Also, as shown in figure 4, distance L is the mobile range of bolt, specific value is determined according to magnitude of load.
Fig. 5 is the force analysis figure of common beam and joint connecting structure, in contrast, when connector 2 is subject to power F to the left
When, only interstitial hole is subject to the active force of Q1 by the stress of beam and joint connecting structure of the present invention, and the hole at both ends is only subject to Q2's
Active force, by comparison it is apparent that the bolt strained form in both sides is simpler in the present invention, load smaller, and middle bolt fastening
Whole shearings that support reaction is generated in connecting portion are born, the present invention is a kind of clearer connection structure of load path.
By taking aircraft rear body tablet gas-tight door longeron as an example：
Transporter is disposed with tablet gas-tight door in rear airtight end frame, is primarily subjected to airtight load.The master of the tablet gas-tight door
The load-carrying construction as beam of longitudinal direction and splice combinations form, it is similar with structure of the present invention.Airtight load is transferred to vertical by siding
Beam is transferred to finally by upper and lower connector on fuselage, and more than 15 tons, both sides bolt needs lower contact support reaction F for trimming moment
The power to be born also is 15 tons.As shown in fig. 6, it is limited by spatial position, weld width only 110mm, diameter of bolt hole D, such as
Three groups of bolts of fruit meet 2D+1 back gauges, 4D spacing, then the diameter of bolt is up to 9mm, it is impossible to bear 15 tons of load.
Both sides bolt hole is designed as slotted hole by method using the present invention, in this way, middle bolt fastening undertakes whole power F, two
Side bolt only trimming moment M, load path is apparent, and middle bolt fastening Impact direction is horizontal direction, and both sides are bolt strained
Direction is vertical direction, and therefore, both sides bolt need not meet 2D+1 back gauges in the horizontal direction, but meet 2D in vertical direction
+ 1 back gauge；Such three groups of diameters of bolt may be designed as 12mm, selects high-strength bolt that can meet intensity requirement, and avoids
The intensity risk that the bolt trade mark, diameter different band are come.
It is last it is to be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.To the greatest extent
Pipe is with reference to the foregoing embodiments described in detail the present invention, it will be understood by those of ordinary skill in the art that：It is still
It can modify to the technical solution recorded in foregoing embodiments or which part technical characteristic is equally replaced
It changes；And these modifications or replacement, the essence of appropriate technical solution is not made to depart from the essence of various embodiments of the present invention technical solution
God and scope.
Claims (4)
1. a kind of beam of belt lacing, including beam (1), connector (2) and connection bolt, it is characterised in that：The beam category of the belt lacing
In being set in field of airplane structure, the beam (1) with connector (2) junction there are three bolt hole, three spiro keyhole positions
In on same straight line, intermediate bolt hole is circular hole, with the connection bolt interference engagement, bears connector support reaction in bonding pad
The shearing of generation；The bolt hole of both sides is slotted hole, the short side of the slotted hole and the connection bolt interference engagement, the length
The long side of circular hole and the connection bolt-clearance cooperation, and the long axis of slotted hole is parallel with support reaction position, and bolt can be
It is moved on long axis direction, is not subject to the shearing that connector support reaction is generated in connecting portion, be only capable of balance additional moment；The connector
(2) with the upper three bolt hole corresponding positions of beam (1) open there are three on beam (1) among the identical bolt hole of bolt hole.
2. the beam of belt lacing as described in claim 1, it is characterised in that：The spiro keyhole position of the centre of the beam (1) is in described
The center of the interface end of beam (1), the straight line parallel that three bolts hole on the beam (1) are formed connect in the both ends of the beam
Line.
3. the beam of belt lacing as described in claim 1, it is characterised in that：The spiro keyhole position of the centre of the beam (1) is in described
The center of the interface end of beam (1), the straight line that three bolts hole on the beam (1) are formed connect perpendicular to the both ends of the beam
Line.
4. the beam of belt lacing as described in claim 1, it is characterised in that：The slotted hole is by intermediate rectangle and both sides
Semicircle forms, a diameter of R of semicircle orifice, and an edge lengths of rectangle are R, and another edge lengths are L, and the L is 0.2R~0.8R.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510881574.9A CN105416562B (en) | 2015-12-04 | 2015-12-04 | A kind of beam of belt lacing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510881574.9A CN105416562B (en) | 2015-12-04 | 2015-12-04 | A kind of beam of belt lacing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105416562A CN105416562A (en) | 2016-03-23 |
| CN105416562B true CN105416562B (en) | 2018-06-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510881574.9A Active CN105416562B (en) | 2015-12-04 | 2015-12-04 | A kind of beam of belt lacing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105416562B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201843871U (en) * | 2010-09-15 | 2011-05-25 | 犀比奥(上海)金属制品有限公司 | Pulling basket door plate fixing device |
| CN203430938U (en) * | 2013-08-23 | 2014-02-12 | 许昌美特桥架股份有限公司 | Ladder rack locking element |
| CN105114409A (en) * | 2015-08-31 | 2015-12-02 | 华北电力大学（保定） | Anti-slip method of bolt connection component |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100519305C (en) * | 2006-05-16 | 2009-07-29 | 中国国际海运集装箱(集团)股份有限公司 | Connector lug, vehicle main beam with the connector lug and connection method of the main beam |
-
2015
- 2015-12-04 CN CN201510881574.9A patent/CN105416562B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201843871U (en) * | 2010-09-15 | 2011-05-25 | 犀比奥(上海)金属制品有限公司 | Pulling basket door plate fixing device |
| CN203430938U (en) * | 2013-08-23 | 2014-02-12 | 许昌美特桥架股份有限公司 | Ladder rack locking element |
| CN105114409A (en) * | 2015-08-31 | 2015-12-02 | 华北电力大学（保定） | Anti-slip method of bolt connection component |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105416562A (en) | 2016-03-23 |
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