CN109506911A - Load testing machine - Google Patents
Load testing machine Download PDFInfo
- Publication number
- CN109506911A CN109506911A CN201811334300.8A CN201811334300A CN109506911A CN 109506911 A CN109506911 A CN 109506911A CN 201811334300 A CN201811334300 A CN 201811334300A CN 109506911 A CN109506911 A CN 109506911A
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- CN
- China
- Prior art keywords
- testpieces
- hole
- testing machine
- load testing
- charging assembly
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
This application provides a kind of load testing machines, including fixation kit and the charging assembly being connect with fixation kit, fixation kit and charging assembly are used for the fixed testpieces of the first predetermined angle, when charging assembly provides loading force for testpieces, so that being in pre-determined distance between the center of testpieces and the axis of charging assembly.
Description
Technical field
This application involves technical field of aerospace, specifically provide a kind of load testing machine.
Background technique
Helicopter in-flight, rotor hub support arm is important stressed member, is to realize blade and spherical surface elastic shaft
Connection transition between holding gives all load transmissions of blade to propeller hub center piece, realizes damper, distance-variable rocker arm, spherical surface bullet
The connection of the components such as property bearing.
Propeller hub support arm components are more, and structure is complicated, and blade pin is the key component for connecting propeller hub support arm and blade, in rotor
When high speed rotation, blade pin is by the effect of alternating load, and under flying for long time, blade pin easily occurs wearing and crackle.For this purpose,
It needs to carry out Intensity Design to blade pin, be examined with this fatigue life of blade pin, and be the use of blade pin on helicopter
Maintenance provides foundation.
When previous test, blade pin is examined not as individual testpieces, but is put together with propeller hub support arm, into
Row propeller hub support arm fatigue test.And it is present, since some critical processes seriously affect the fatigue behaviour of blade pin, according to crucial work
Sequence inspecton of quality conformity requirement, needs to re-start life appraisal to blade pin.
Summary of the invention
At least one in order to solve the above-mentioned technical problem, this application provides a kind of load testing machines, including fixed group
Part and the charging assembly connecting with the fixation kit, the fixation kit and the charging assembly are used for the first preset angle
Spend fixed testpieces, when the charging assembly provides loading force for the testpieces so that the center of the testpieces with it is described
It is in pre-determined distance between the axis of charging assembly.
According at least one embodiment of the application, the fixation kit includes fixing seat, is offered in the fixing seat
First through hole and mounting groove, the first through hole are connected to the mounting groove, so that the testpieces passes through the first through hole
When, the part that the testpieces passes through the fixing seat is located in the mounting groove；The charging assembly includes testpieces connector,
The testpieces connector is adapted to be mounted in the mounting groove, offers the second through-hole on the testpieces connector；Described
The axis of the axis of one through-hole and second through-hole deflects the second predetermined angle both with respect to vertical direction, so that the examination
Testing part can be installed in the fixing seat and the testpieces connector with first predetermined angle.
According at least one embodiment of the application, the sum of first predetermined angle and second predetermined angle are 90
Degree.
According at least one embodiment of the application, the charging assembly further includes adapter, the adapter with it is described
The connection of testpieces connector, and the axis of the adapter is overlapped with the axis of the testpieces.
According at least one embodiment of the application, offered on the testpieces and coaxial mounting hole, the switching
Head is set in the mounting hole.
According at least one embodiment of the application, the charging assembly further includes load loading mechanism, and the load adds
Mounted mechanism is fixedly connected and is coaxially disposed with the adapter.
According at least one embodiment of the application, the fixation kit further includes transition plates, is opened up in the fixing seat
There is fixing groove, the transition plates is at least partially arranged in the fixing groove.
According at least one embodiment of the application, is offered on the part that the transition plates is located in the fixing groove
Three through-holes, offer fourth hole on the fixing seat, and bolt passes through the third through-hole and the fourth hole with fixation
The transition plates and the fixing seat.
According at least one embodiment of the application, the part that the transition plates is located at outside the fixing groove is fixedly connected with
Testpieces support.
It further include fixed platform according at least one embodiment of the application, the load loading mechanism and the test
Part support is fixedly connected with the fixed platform.
In load testing machine provided by the embodiments of the present application, blade pin can be simulated by fixation kit and charging assembly
Installation fixed form aboard, so that carrying out load test can be by test overall error control within 3%.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of load testing machine provided by the embodiments of the present application；
Fig. 2 is the side view of load testing machine provided by the embodiments of the present application；
Fig. 3 is the cross-sectional view in the direction A-A in Fig. 1；
Fig. 4 is the structural schematic diagram of testpieces connector provided by the embodiments of the present application；
Fig. 5 is the structural schematic diagram of fixing seat provided by the embodiments of the present application；
Fig. 6 is the structural schematic diagram of transition plates provided by the embodiments of the present application；
Fig. 7 is the structural schematic diagram of testpieces support provided by the embodiments of the present application.
Wherein:
10, fixation kit；11, fixing seat；111, first through hole；112, mounting groove；113, fixing groove；114, four-way
Hole；12, transition plates；121, third through-hole；122, fifth hole；13, testpieces support；20, charging assembly；21, testpieces connects
Head；211, the second through-hole；212, mounting hole；22, adapter；23, load loading mechanism；30, testpieces；40, fixed platform.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related application, rather than the restriction to this application.It also should be noted that in order to
Convenient for description, part relevant to the application is illustrated only in attached drawing.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It should be noted that in the description of the present application, term " first ", " second ", " third ", " the 4th ", " the 5th "
It is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.In addition it is also necessary to explanation, in the application
Description in unless specifically defined or limited otherwise, term " setting ", " connection ", " installation " shall be understood in a broad sense, for example,
It may be fixed connection or may be dismantle connection, or integral connection；It can be mechanical connection, be also possible to be electrically connected；
It can be directly connected, the connection inside two elements can also be can be indirectly connected through an intermediary.For this field
For technical staff, the concrete meaning of above-mentioned term in this application can be understood as the case may be.
Fig. 1 is the structural schematic diagram of load testing machine provided by the embodiments of the present application, and Fig. 2 is that the embodiment of the present application provides
Load testing machine side view, Fig. 3 is the cross-sectional view in the direction A-A in Fig. 1.
As shown in Figure 1, Figure 2 and Figure 3, load testing machine include fixation kit 10 and connect with fixation kit 10 plus
Component 20 is carried, fixation kit 10 and charging assembly 20 are used for the fixed testpieces 30 of the first predetermined angle, and charging assembly 20 is examination
When testing the offer loading force of part 30, so that being in pre-determined distance between the center of testpieces 30 and the axis of charging assembly 20.
It cooperates between fixation kit 10 and charging assembly 20, so that testpieces 30 is when by loading force, it can be with
It is in pre-determined distance between the axis at the center and charging assembly 20 of one predetermined angle and testpieces 30, so as to simulate examination
The installation boundary condition of part aboard is tested, so that true installation environment of the test as far as possible the close to testpieces, and then reduce
Test error.
In some alternative embodiments, referring to Figure 4 together and Fig. 5, fixation kit 10 includes fixing seat 11, fixing seat
First through hole 111 and mounting groove 112 are offered on 11, first through hole 111 is connected to mounting groove 112, so that testpieces 30 passes through
When first through hole 111, the part that testpieces 30 passes through fixing seat 11 is located in mounting groove 112.
Charging assembly 20 includes testpieces connector 21, and testpieces connector 21 is adapted to be mounted in mounting groove 112, in testpieces
The second through-hole 211 is offered on connector 21.
The axis of the axis of first through hole 111 and the second through-hole 211 deflects the second predetermined angle both with respect to vertical direction,
So that testpieces 30 can be installed in fixing seat 11 and testpieces connector 21 with the first predetermined angle α, and to test
It is in predetermined angle d between the center of part 30 and the axis of testpieces connector 21.
In the present embodiment, the sum of the first predetermined angle and the second predetermined angle are 90 degree.
, it is understood that the different parts for installation aboard, can design different testpieces, and pass through
Adjust first through hole 111 and 211 axis of the second through-hole deflection angle, and by adjusting testpieces connector 21 shape in turn
Change the axial location of testpieces connector 21, that is to say, that change the first predetermined angle α and pre-determined distance d, thus for difference
Testpieces tested, to reach the true installation site for simulating different parts, and then reduce the error of test.
In some embodiments, with continued reference to Fig. 3, charging assembly 20 further includes adapter 22, adapter 22 and testpieces
Connector 21 connects, and the axis of adapter 22 is overlapped with the axis of testpieces connector 21.Optionally, it is opened on testpieces connector 21
Equipped with coaxial mounting hole 212, adapter 22 is set in mounting hole 212, to guarantee axis and the examination of adapter 22
The axis for testing part connector 21 is overlapped.
In some embodiments, charging assembly 20 further includes load loading mechanism 23, load loading mechanism 23 and adapter
22 are fixedly connected and are coaxially disposed.Optionally, ears support is provided in fixed platform 40, load loading mechanism 23 passes through pin
Axis connection is on ears support.
In some embodiments, also referring to Fig. 5 and Fig. 6, fixation kit 10 further includes transition plates 12, in fixing seat 11
Fixing groove 113 is offered, transition plates 12 is at least partially arranged in fixing groove 113.Optionally, transition plates 12 is located at fixing groove
Third through-hole 121 is offered on part in 113, fourth hole 114 is offered in fixing seat 11, and bolt passes through third through-hole
121 and fourth hole 114 to fix transition plates 12 and fixing seat 11.
In some embodiments, it is located at the part outside fixing groove 113 with Fig. 7, transition plates 12 referring to Figure 6 together and fixes company
It is connected to testpieces support 13.Optionally, fifth hole 122 is offered on the part that transition plates 12 is located at outside fixing groove 113,
Testpieces support 13 is equipped with protrusion, offers threaded hole in the protrusion, passes through fifth hole 122 by bolt and is connected to spiral shell
In pit, transition plates 12 is connected on testpieces support 13.
In some embodiments, load loading mechanism 23 and testpieces support 13 are fixedly connected with fixed platform 40.
So far, it has been combined preferred embodiment shown in the drawings and describes the technical solution of the application, still, this field
Technical staff is it is easily understood that the protection scope of the application is expressly not limited to these specific embodiments.Without departing from this
Under the premise of the principle of application, those skilled in the art can make equivalent change or replacement to the relevant technologies feature, these
Technical solution after change or replacement is fallen within the protection scope of the application.
Claims (10)
1. a kind of load testing machine, which is characterized in that connect including fixation kit (10) and with the fixation kit (10)
Charging assembly (20), the fixation kit (10) and the charging assembly (20) are used for the fixed testpieces of the first predetermined angle
(30), the charging assembly (20) be the testpieces (30) provide loading force when so that the center of the testpieces (30) with
It is in pre-determined distance between the axis of the charging assembly (20).
2. load testing machine according to claim 1, which is characterized in that the fixation kit (10) includes fixing seat
(11), first through hole (111) and mounting groove (112) are offered on the fixing seat (11), the first through hole (111) and described
Mounting groove (112) connection, when so that the testpieces (30) passing through the first through hole (111), the testpieces (30) is passed through
The part of the fixing seat (11) is located in the mounting groove (112)；
The charging assembly (20) includes testpieces connector (21), and the testpieces connector (21) is adapted to be mounted to the mounting groove
(112) in, the second through-hole (211) are offered on the testpieces connector (21)；
The axis of the first through hole (111) and the axis of second through-hole (211) are both with respect to vertical direction deflection second
Predetermined angle, so that the testpieces (30) can be installed on the fixing seat (11) and described with first predetermined angle
On testpieces connector (21).
3. load testing machine according to claim 2, which is characterized in that first predetermined angle and described second is in advance
If the sum of angle is 90 degree.
4. according to claim 1 to load testing machine described in optional one in 3, which is characterized in that the charging assembly
It (20) further include adapter (22), the adapter (22) connect with the testpieces connector (21), and the adapter
(22) axis is overlapped with the axis of the testpieces connector (21).
5. load testing machine according to claim 4, which is characterized in that offered on the testpieces connector (21) with
Its coaxial mounting hole (212), the adapter (22) are set in the mounting hole (212).
6. load testing machine according to claim 5, which is characterized in that the charging assembly (20) further includes that load adds
Mounted mechanism (23), the load loading mechanism (23) are fixedly connected and are coaxially disposed with the adapter (22).
7. according to claim 1 to load testing machine described in optional one in 3, which is characterized in that the fixation kit
(10) further include transition plates (12), offered fixing groove (113) on the fixing seat (11), the transition plates (12) is at least partly
It is set in the fixing groove (113).
8. load testing machine according to claim 7, which is characterized in that the transition plates (12) is located at the fixing groove
(113) third through-hole (121) are offered on the part in, and fourth hole (114), bolt are offered on the fixing seat (11)
Across the third through-hole (121) and the fourth hole (114) with the fixation transition plates (12) and the fixing seat (11).
9. load testing machine according to claim 8, which is characterized in that the transition plates (12) is located at the fixing groove
(113) part outside is fixedly connected with testpieces support (13).
10. load testing machine according to claim 6 or 9, which is characterized in that it further include fixed platform (40), it is described
Load loading mechanism (23) and the testpieces support (13) are fixedly connected with the fixed platform (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811334300.8A CN109506911B (en) | 2018-11-09 | 2018-11-09 | Loading test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811334300.8A CN109506911B (en) | 2018-11-09 | 2018-11-09 | Loading test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109506911A true CN109506911A (en) | 2019-03-22 |
| CN109506911B CN109506911B (en) | 2020-10-23 |
Family
ID=65748089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811334300.8A Active CN109506911B (en) | 2018-11-09 | 2018-11-09 | Loading test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109506911B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110641734A (en) * | 2019-09-29 | 2020-01-03 | 中国直升机设计研究所 | Main oar central part waves pendulum loading device |
| CN110884683A (en) * | 2019-12-04 | 2020-03-17 | 中国直升机设计研究所 | Helicopter blade pin flight load testing method |
| CN112591137A (en) * | 2020-11-13 | 2021-04-02 | 中国航空工业集团公司沈阳飞机设计研究所 | Horizontal tail large shaft test device for airplane |
| CN112611550A (en) * | 2020-11-13 | 2021-04-06 | 中国航空工业集团公司沈阳飞机设计研究所 | Fatigue test loading device for control system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110641734A (en) * | 2019-09-29 | 2020-01-03 | 中国直升机设计研究所 | Main oar central part waves pendulum loading device |
| CN110884683A (en) * | 2019-12-04 | 2020-03-17 | 中国直升机设计研究所 | Helicopter blade pin flight load testing method |
| CN110884683B (en) * | 2019-12-04 | 2022-04-29 | 中国直升机设计研究所 | Helicopter blade pin flight load testing method |
| CN112591137A (en) * | 2020-11-13 | 2021-04-02 | 中国航空工业集团公司沈阳飞机设计研究所 | Horizontal tail large shaft test device for airplane |
| CN112611550A (en) * | 2020-11-13 | 2021-04-06 | 中国航空工业集团公司沈阳飞机设计研究所 | Fatigue test loading device for control system |
| CN112611550B (en) * | 2020-11-13 | 2022-07-15 | 中国航空工业集团公司沈阳飞机设计研究所 | Fatigue test loading device for control system |
| CN112591137B (en) * | 2020-11-13 | 2023-11-28 | 中国航空工业集团公司沈阳飞机设计研究所 | Airplane horizontal tail large shaft test device |
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|---|---|
| CN109506911B (en) | 2020-10-23 |
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