CN108709817A - A kind of flexible axle twisting property experimental rig - Google Patents
A kind of flexible axle twisting property experimental rig Download PDFInfo
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- CN108709817A CN108709817A CN201810756857.4A CN201810756857A CN108709817A CN 108709817 A CN108709817 A CN 108709817A CN 201810756857 A CN201810756857 A CN 201810756857A CN 108709817 A CN108709817 A CN 108709817A
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- flexible axle
- experimental rig
- gasket
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/26—Investigating twisting or coiling properties
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- General Health & Medical Sciences (AREA)
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to twisting properties to test field, more particularly to a kind of flexible axle twisting property experimental rig.Including：Flexible axle (7), rotary shaft (2), bushing (8) and counterweight (13).The device, during experiment, axial force is constrained by deep groove ball bearing (5), and only frictional force is influenced between by bearing (5) Internal and external cycle for the application of torque, and friction coefficient is small between bearing internal external circle, and the error of generation can be ignored；Torque is constrained by gasket (10), influence to axial force is mainly reflected in the elastic force generated when gasket (10) bending, and since gasket (10) is relatively thin, when generating axial bending deformation, elastic force is smaller, it can be offset by testing the method demarcated in the process, effectively flexible axle (7) can be applied on torsional direction and constrained；Torque is applied to flexible axle (7) by torque wrench, is loaded by counterweight and pulley relative to existing experimental rig, reduces the error caused by frictional force.
Description
Technical field
The present invention relates to twisting properties to test field, more particularly to a kind of flexible axle twisting property experimental rig.
Background technology
As shown in Figure 1, the experiment of thrust reverser flexible axle twisting property needs to fix flexible axle one end (fixed point on exerciser
A), apply axial force to the end along flexible axle length direction to stretch flexible axle, while the fixed flexible axle other end (fixed point B), dextrorotation
Apply torque, and measures the torsion angle of flexible axle.
Existing testing program, as shown in Fig. 2, including counterweight 13, pulley 15, the second fixtures of fixed point A 9, flexible axle 7, consolidating
Pinpoint the first fixtures of B 6, rotary shaft 2, bearing 5, fixed seat 4, pointer 1, gasket 10, guide rail 14, dial 3 and torsion disk 16
Composition.The device fixes 7 one end of flexible axle by the second fixtures of fixed point A 9, and wherein the second fixtures of fixed point A 9 connect guide rail
On 14；The other end is fixed by the first fixtures of fixed point B 6, and the first fixtures of fixed point B 6 are fixed in rotary shaft 2, reverses disk
16 are fixed in rotary shaft 2, and pointer 1 is fixed on torsion disk 16.In experiment, pressed from both sides by fixed point A second using counterweight 13
9 pairs of flexible axles 7 of tool apply axial force, apply torque to flexible axle 7 by reversing disk 16, the torsion of flexible axle 7 is measured by pointer 1
Angle.
The shortcomings that existing experimental rig, is：Between the second fixtures of fixed point A 9 and guide rail 14, rotary shaft 2 and fixed seat 4
Between there are frictional force, therefore in loading procedure, interfered between torque and axial force, i.e., the second fixtures of fixed point A 9 with lead
Frictional force between rail 14 can change with the application of torque, and the frictional force between rotary shaft 2 and fixed seat 4 also can be with axis
Increase to the application of power so that practical function is in the load on flexible axle 7 and there may be large errors between specified load.
Invention content
The object of the present invention is to provide a kind of flexible axle twisting property experimental rig, with solve it is of the existing technology at least
One problem.
The technical scheme is that：
A kind of flexible axle twisting property experimental rig, including：
One end of flexible axle, the flexible axle is fixedly connected with the first fixture, and the other end is fixedly connected with the second fixture；
Rotary shaft, the rotary shaft is mounted on the end of first fixture, pointer is provided in the rotary shaft, described
Rotary shaft is fixed on by bearing in fixed seat, and dial is provided in the fixed seat；
Bushing, the bushing are fixed on the inside of second fixture, and the bushing is connect by gasket with column；
Counterweight, the counterweight are mounted on the end of second fixture.
Optionally, the gasket and the column include two, and two gaskets are respectively fixedly connected in the lining
The diametric both ends of set, it is tangent with the outside wall surface of the bushing and oppositely arranged.
Optionally, two gaskets are fixed on by ears structure on the corresponding column.
Optionally, the counterweight is installed by the end set ears structure in second fixture.
Optionally, the bearing is deep groove ball bearing.
Invention effect：
The flexible axle twisting property experimental rig of the present invention, during the test, axial force is constrained by bearing, torque
Apply only between by bearing internal external circle frictional force influenced, and due between bearing internal external circle friction coefficient it is small, so torque
Institute is affected small, and the error of generation can be ignored；Torque is constrained by gasket, and the influence to axial force is smaller, and
It can be offset by testing the method demarcated in the process, effectively flexible axle can be applied on torsional direction and constrained.
Description of the drawings
Fig. 1 is the schematic diagram of flexible axle；
Fig. 2 is the schematic diagram of the flexible axle twisting property experimental rig of the prior art；
Fig. 3 is the sectional view of the flexible axle twisting property experimental rig of the present invention；
Fig. 4 is the connection diagram of the bushing and gasket of the flexible axle twisting property experimental rig of the present invention.
Specific implementation mode
To keep 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, 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 indicate same or similar element or element with the same or similar functions.Described embodiment is the present invention
A 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
The every other embodiment that member is obtained without creative efforts, shall fall within the protection scope of the present invention.Under
Face is described in detail the embodiment of the present invention in conjunction with 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 positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated dress
It sets or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as protecting the present invention
The limitation of range.
3 the flexible axle twisting property experimental rig of the present invention is described in further details to attached drawing 4 below in conjunction with the accompanying drawings.
The present invention provides a kind of flexible axle twisting property experimental rigs, may include：Flexible axle 7, rotary shaft 2, bushing 8 and
Counterweight 13.
Specifically, one end of flexible axle 7 is fixedly connected with the first fixture 6, and the other end is fixedly connected with the second fixture 9, the first fixture 6
End rotary shaft 2 is installed, pointer 1 is provided in rotary shaft 2, rotary shaft 2 is fixed on by bearing 5 in fixed seat 4, and solid
Dial 3 is provided in reservation 4.In the present embodiment, preferably bearing 5 is deep groove ball bearing.
Bushing 8 is fixed on the inside of the second fixture 9, and bushing 8 is connect by gasket 10 with column 12.In the present embodiment, pad
Piece 10 and column 12 include two, and two gaskets 10 are respectively fixedly connected at the diametric both ends of bushing 8, with bushing 8
Outside wall surface it is tangent and oppositely arranged.Two gaskets 10 are fixed on by ears structure 11 on column 12.Further, gasket 10
It is shim liner.It is understood that being carried out about to the torsional deflection of flexible axle 7 using gasket 10 and its cantilever design in the present apparatus
The form of beam, applies flexible axle 7 using the gasket 10 of cantilever the constraint of torsional direction, and 10 cantilevered orientation of gasket is softer to axial force
Loading effect is small, but in-plane stiffness is big, can be with operative constraint torsional deflection.
Counterweight 13 is mounted on the end of the second fixture 9.In the present embodiment, pass through the end set ears in the second fixture 9
Structure 11 installs counterweight 13.
The flexible axle twisting property experimental rig of the present invention, when assembly, first that flexible axle 7 is vertical, one end passes through the first fixture 6
It is fixed in rotary shaft 2, rotary shaft 2 is fixed on by deep groove ball bearing 5 in fixed seat 4, and dial 3 is fixed on fixed seat 4
On, pointer 1 is fixed in rotary shaft 2.Then, one end of gasket 10 is fixed on by ears structure 11 on column 12, it is another
End applies 7 other end of flexible axle by the bushing 8 of 9 inside of the second fixture the constraint of torsional direction.During experiment, counterweight is utilized
13 apply axial force by the second fixture 9 to flexible axle 7, are applied to flexible axle 7 by rotary shaft 2, the first fixture 6 using torque wrench
Torque, and measure by pointer 1 and dial 3 torsion angle of flexible axle 7.Since axial force will not be to 5 Internal and external cycle of deep groove ball bearing
Between generate radial load, so do not interfere with the torque suffered by flexible axle 7, while the size by calculating gasket 10 can ensure
When gasket 10 generates axial bending deformation, influence of the generated elastic force to axial force is in reasonable range.
In conclusion the flexible axle twisting property experimental rig of the present invention, during experiment, axial force is to pass through zanjon
Ball bearing 5 is constrained, torque apply only between by 5 Internal and external cycle of bearing frictional force influenced, and due to 5 Internal and external cycle of bearing it
Between friction coefficient it is small, so torque institute it is affected small, the error of generation can be ignored；Torque is constrained by gasket 10,
Influence to axial force is mainly reflected in the elastic force generated when gasket 10 is bent, and since gasket 10 is relatively thin, generate axial bending
When deformation, elastic force is smaller, and can be offset by testing the method demarcated in the process, and can be effective on torsional direction
Ground, which applies flexible axle 7, to be constrained；Torque is applied to flexible axle 7 by torque wrench, passes through counterweight and cunning relative to existing experimental rig
Wheel is loaded, and the error caused by frictional force is reduced.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, all answer by the change or replacement that can be readily occurred in
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of the claims
It is accurate.
Claims (5)
1. a kind of flexible axle twisting property experimental rig, which is characterized in that including：
One end of flexible axle (7), the flexible axle (7) is fixedly connected with the first fixture (6), and the other end is fixedly connected with the second fixture (9)；
Rotary shaft (2), the rotary shaft (2) are mounted on the end of first fixture (6), are provided on the rotary shaft (2)
Pointer (1), the rotary shaft (2) are fixed on by bearing (5) in fixed seat (4), and dial is provided on the fixed seat (4)
(3)；
Bushing (8), the bushing (8) are fixed on the inside of second fixture (9), the bushing (8) by gasket (10) with
Column (12) connects；
Counterweight (13), the counterweight (13) are mounted on the end of second fixture (9).
2. flexible axle twisting property experimental rig according to claim 1, which is characterized in that the gasket (10) and described vertical
Column (12) includes two, and two gaskets (10) are respectively fixedly connected at the diametric both ends of the bushing (8), with
The outside wall surface of the bushing (8) is tangent and oppositely arranged.
3. flexible axle twisting property experimental rig according to claim 2, which is characterized in that two gaskets (10) pass through
Ears structure (11) is fixed on the corresponding column (12).
4. flexible axle twisting property experimental rig according to claim 1, which is characterized in that by second fixture
(9) end set ears structure (11) installs the counterweight (13).
5. flexible axle twisting property experimental rig according to claim 1, which is characterized in that the bearing (5) is deep-groove ball
Bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810756857.4A CN108709817B (en) | 2018-07-11 | 2018-07-11 | Flexible shaft torsion performance test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810756857.4A CN108709817B (en) | 2018-07-11 | 2018-07-11 | Flexible shaft torsion performance test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108709817A true CN108709817A (en) | 2018-10-26 |
| CN108709817B CN108709817B (en) | 2021-05-25 |
Family
ID=63874895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810756857.4A Active CN108709817B (en) | 2018-07-11 | 2018-07-11 | Flexible shaft torsion performance test device |
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| Country | Link |
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| CN (1) | CN108709817B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110132755A (en) * | 2019-05-29 | 2019-08-16 | 新光机电(昆山)有限公司 | Resist bending electric wire test machine |
Citations (7)
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| JPH05215657A (en) * | 1992-03-25 | 1993-08-24 | Tokyo Inst Of Technol | Displacement gauge used for tightened screw testing device or the like |
| CN104165809A (en) * | 2014-08-04 | 2014-11-26 | 常熟市环境试验设备有限公司 | Cable torsion test device |
| CN104198303A (en) * | 2014-09-02 | 2014-12-10 | 湖北航天技术研究院总体设计所 | Device for measuring creep of torsion bar |
| KR20150138444A (en) * | 2014-05-29 | 2015-12-10 | 영남대학교 산학협력단 | Controlling method torsion testing machine and torsion testing machine |
| CN105571958A (en) * | 2016-01-14 | 2016-05-11 | 南京航空航天大学 | Large-diameter high-strength composite circular tube torsion test device and test method thereof |
| CN107179251A (en) * | 2017-06-12 | 2017-09-19 | 南京工程学院 | A kind of girder steel constraint torsion experimental rig |
| CN108168999A (en) * | 2017-12-14 | 2018-06-15 | 咸阳宝石钢管钢绳有限公司 | A kind of wire rope torque and torsion angle measurement device and its assay method |
-
2018
- 2018-07-11 CN CN201810756857.4A patent/CN108709817B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05215657A (en) * | 1992-03-25 | 1993-08-24 | Tokyo Inst Of Technol | Displacement gauge used for tightened screw testing device or the like |
| KR20150138444A (en) * | 2014-05-29 | 2015-12-10 | 영남대학교 산학협력단 | Controlling method torsion testing machine and torsion testing machine |
| CN104165809A (en) * | 2014-08-04 | 2014-11-26 | 常熟市环境试验设备有限公司 | Cable torsion test device |
| CN104198303A (en) * | 2014-09-02 | 2014-12-10 | 湖北航天技术研究院总体设计所 | Device for measuring creep of torsion bar |
| CN105571958A (en) * | 2016-01-14 | 2016-05-11 | 南京航空航天大学 | Large-diameter high-strength composite circular tube torsion test device and test method thereof |
| CN107179251A (en) * | 2017-06-12 | 2017-09-19 | 南京工程学院 | A kind of girder steel constraint torsion experimental rig |
| CN108168999A (en) * | 2017-12-14 | 2018-06-15 | 咸阳宝石钢管钢绳有限公司 | A kind of wire rope torque and torsion angle measurement device and its assay method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110132755A (en) * | 2019-05-29 | 2019-08-16 | 新光机电(昆山)有限公司 | Resist bending electric wire test machine |
| CN110132755B (en) * | 2019-05-29 | 2024-04-16 | 新光机电(昆山)有限公司 | Bending-resistant wire tester |
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| Publication number | Publication date |
|---|---|
| CN108709817B (en) | 2021-05-25 |
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