CN107270849A - A kind of engine high-strength bolt elongation test device - Google Patents
A kind of engine high-strength bolt elongation test device Download PDFInfo
- Publication number
- CN107270849A CN107270849A CN201710412083.9A CN201710412083A CN107270849A CN 107270849 A CN107270849 A CN 107270849A CN 201710412083 A CN201710412083 A CN 201710412083A CN 107270849 A CN107270849 A CN 107270849A
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- CN
- China
- Prior art keywords
- fixed plate
- main
- bearing
- driven pulley
- test device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a kind of engine high-strength bolt elongation test device, including fixed plate, gear pair and measurement table, body is included by test specimen, bearing cap, main-bearing stud and main bearing nut, the main bearing nut that the bearing cap is engaged by main-bearing stud and with main-bearing stud is arranged in the groove of body surface, fixed plate is provided with the top of the bearing cap, the fixed plate is fixed on the surface of body, the gear pair is arranged on the upper surface of fixed plate, and connecting rod and hexagonal structure are sequentially provided with inside driven pulley, the hexagonal structure is located at the bottom of driven pulley and contacted with the bottom surface of connecting rod, the bottom of driven pulley 7 is connected to main bearing nut at through fixed plate and by hexagonal structure, the measurement table is located at the top of driven pulley and is connected with connecting rod.Beneficial effect of the present invention：By way of gear is fitted, on the outside of pretension spatial translation to bolt, the elongation test space is conceded, facilitates test instrumentation to install, accurate measurement data.
Description
Technical field
The invention belongs to engine fasteners mounting technology field, more particularly, to a kind of engine high-strength bolt elongation
Test device.
Background technology
The uniformity and stability of engine key components and parts fastener pretightning force have important influence to whole aircraft reliability.
Conventional pre-tension method has calibrated wrench method and torque axis horn cupping, and both approaches have certain deviation, wherein calibrated wrench method maximum deviation
More than 50%, the maximum deviation of torque axis horn cupping also reaches 20%.In order to ensure uniform pretension, foreign countries employ yield point control
Method, this method can effectively reduce pretightning force deviation, but have very high requirement to fastener workmanship and stability,
And fastener using several times (typically within 3 times) after be accomplished by change.
The content of the invention
In view of this, the present invention is directed to propose a kind of engine high-strength bolt elongation test device, is measured so as to accurate
The bolt elongate amount of main bearing of engine tools for bolts ' pretension process, it is ensured that fastener can be accurately controlled during engine assembly
Pretightning force.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of engine high-strength bolt elongation test device, including fixed plate, gear pair and measurement table, are included by test specimen
Body, bearing cap, main-bearing stud and main bearing nut, the bearing cap match by main-bearing stud and with main-bearing stud
The main bearing nut of conjunction is arranged in the groove of body surface, and fixed plate, the fixed plate are provided with the top of the bearing cap
Be fixed on the surface of body, the gear pair is arranged on the upper surface of fixed plate, and be sequentially provided with inside driven pulley connecting rod and
Hexagonal structure, the hexagonal structure is located at the bottom of driven pulley and contacted with the bottom surface of connecting rod, and the bottom of driven pulley 7 is passed through
Fixed plate is simultaneously connected at main bearing nut by hexagonal structure, the measurement table be located at driven pulley top and with connecting rod phase
Even.
Further, the fixed plate is fixed with body by installation bolt.
Further, the measurement table is fixed in fixed plate by fixture.
Further, the driven pulley bottom is provided with boss, and upper surface is contacted with the lower surface of hexagonal structure.
Relative to prior art, engine high-strength bolt elongation test device of the present invention has the advantage that：
(1) engine high-strength bolt elongation test device of the present invention is by way of gear is fitted, by pretension
Spatial translation concedes the elongation test space to bolt outside, is formed and avoids space, facilitates the installation of test instrumentation, improves and surveys
Try data levels of precision.
(2) engine high-strength bolt elongation test device of the present invention is obtained in real time during engine assembly
Elongation numerical quantity during main bearing of engine tools for bolts ' pretension.
Brief description of the drawings
The accompanying drawing for constituting the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the structure sectional view of the engine high-strength bolt elongation test device described in the embodiment of the present invention；
Fig. 2 is the engine high-strength bolt elongation test device structural representation described in the embodiment of the present invention.
Description of reference numerals：
1- bodies；2- bearing caps；3- main-bearing studs；4- main bearing nuts；5- fixed plates；6- installation bolts；7- is driven
Wheel；8- connecting rods；9- measurement tables；10- driving wheels；11- hexagonal structures；12- boss；13- fixtures.
Embodiment
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combination.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than indicate or dark
Specific orientation must be had, with specific azimuth configuration and operation by showing the device or element of meaning, therefore it is not intended that right
The limitation of the present invention.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As depicted in figs. 1 and 2, a kind of engine high-strength bolt elongation test device, including fixed plate 5, gear pair and
Measurement table 9, includes body 1, bearing cap 2, main-bearing stud 3 and main bearing nut 4 by test specimen, and the bearing cap 2 passes through main shaft
Hold stud 3 and the main bearing nut 4 being engaged with main-bearing stud 3 is arranged in the groove on the surface of body 1, in the bearing cap
2 top is provided with fixed plate 5, and the fixed plate 5 is fixed on the surface of body 1, and the gear pair is arranged on the upper table of fixed plate 5
Be sequentially provided with connecting rod 8 and hexagonal structure 11 inside face, and driven pulley 7, the hexagonal structure 11 be located at the bottom of driven pulley 7 and
Contacted with the bottom surface of connecting rod 8, the bottom of driven pulley 7 through fixed plate 5 and is connected to base bearing spiral shell by hexagonal structure 11
At mother 4, the measurement table 9 is located at the top of driven pulley 7 and is connected with connecting rod 8.
The fixed plate 5 is fixed with body 1 by installation bolt 6.
The measurement table 9 is fixed in fixed plate 5 by fixture 13.
The bottom of driven pulley 7 is provided with boss 12, and upper surface is contacted with the lower surface of hexagonal structure 11.
As the body 1 of engine inherent structure, bearing cap 2, main-bearing stud 3 and main bearing nut 4 be by test specimen, Gu
Fixed board 5, installation bolt 6, gear pair, connecting rod 8 and measurement table 9 collectively form experimental rig, and the present embodiment course of work is as follows：
Using the driving wheel 10 in tools for bolts ' pretension instrument turning gear wheel set, due to driving wheel 10 in gear pair and driven pulley 7
The number of teeth is equal, and putting on the moment of torsion on driving wheel 10 and rotational angle can be delivered on driven pulley 7, and pass through the bottom of driven pulley 7
Hexagonal structure 11 act on main bearing nut 4, with the rotation of main bearing nut 4, the increase of the axial force of main-bearing stud 3, spiral shell
Column length also accordingly increases, and stud length varying value passes to measurement table 9 by connecting rod 8, you can obtain stud elongation
Real time data.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (4)
1. a kind of engine high-strength bolt elongation test device, it is characterised in that：Including fixed plate (5), gear pair and measurement
Table (9),
Body (1), bearing cap (2), main-bearing stud (3) and main bearing nut (4) are included by test specimen, the bearing cap (2) is led to
Cross main-bearing stud (3) and the main bearing nut (4) being engaged with main-bearing stud (3) is arranged on the groove on body (1) surface
It is interior,
Fixed plate (5) is provided with the top of the bearing cap (2), the fixed plate (5) is fixed on the surface of body (1), described
Gear pair is arranged on the upper surface of fixed plate (5), and connecting rod (8) and hexagonal structure (11), institute are sequentially provided with inside driven pulley 7
Hexagonal structure (11) is stated positioned at the bottom of driven pulley (7) and is contacted with the bottom surface of connecting rod (8), driven pulley (7) bottom is saturating
Cross fixed plate (5) and main bearing nut (4) place is connected to by hexagonal structure (11), the measurement table (9) is located at driven pulley (7)
Top and be connected with connecting rod (8).
2. a kind of engine high-strength bolt elongation test device according to claim 1, it is characterised in that：The fixation
Plate (5) is fixed by installation bolt (6) with body (1).
3. a kind of engine high-strength bolt elongation test device according to claim 1, it is characterised in that：The measurement
Table (9) is fixed in fixed plate (5) by fixture (13).
4. a kind of engine high-strength bolt elongation test device according to claim 1, it is characterised in that：It is described driven
Take turns (7) bottom and be provided with boss (12), and upper surface is contacted with the lower surface of hexagonal structure (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710412083.9A CN107270849A (en) | 2017-06-02 | 2017-06-02 | A kind of engine high-strength bolt elongation test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710412083.9A CN107270849A (en) | 2017-06-02 | 2017-06-02 | A kind of engine high-strength bolt elongation test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107270849A true CN107270849A (en) | 2017-10-20 |
Family
ID=60064802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710412083.9A Pending CN107270849A (en) | 2017-06-02 | 2017-06-02 | A kind of engine high-strength bolt elongation test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107270849A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2060186A (en) * | 1979-09-22 | 1981-04-29 | Brown Gear Ind | Measuring bolt elongation |
| US4333351A (en) * | 1980-02-25 | 1982-06-08 | Raymond Engineering Inc. | Method and apparatus for measuring the residual tension in a stud or a bolt |
| CN203738689U (en) * | 2014-03-24 | 2014-07-30 | 中国能源建设集团安徽电力建设第一工程公司 | Device used for measuring extension amount of bolt |
| CN104367244A (en) * | 2014-10-30 | 2015-02-25 | 无锡艾科瑞思产品设计与研究有限公司 | Wall-mounted washing products rack |
-
2017
- 2017-06-02 CN CN201710412083.9A patent/CN107270849A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2060186A (en) * | 1979-09-22 | 1981-04-29 | Brown Gear Ind | Measuring bolt elongation |
| US4333351A (en) * | 1980-02-25 | 1982-06-08 | Raymond Engineering Inc. | Method and apparatus for measuring the residual tension in a stud or a bolt |
| CN203738689U (en) * | 2014-03-24 | 2014-07-30 | 中国能源建设集团安徽电力建设第一工程公司 | Device used for measuring extension amount of bolt |
| CN104367244A (en) * | 2014-10-30 | 2015-02-25 | 无锡艾科瑞思产品设计与研究有限公司 | Wall-mounted washing products rack |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171020 |
|
| RJ01 | Rejection of invention patent application after publication |