CN108918140A - Dynamic load loads anti-deviation device - Google Patents
Dynamic load loads anti-deviation device Download PDFInfo
- Publication number
- CN108918140A CN108918140A CN201810796352.0A CN201810796352A CN108918140A CN 108918140 A CN108918140 A CN 108918140A CN 201810796352 A CN201810796352 A CN 201810796352A CN 108918140 A CN108918140 A CN 108918140A
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- China
- Prior art keywords
- turbine box
- electromagnet
- dynamic load
- pedestal
- testing stand
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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
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/021—Gearings
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention belongs to the technical fields such as the fatigue test of gear, and in particular to a kind of dynamic load load anti-deviation device.It includes pedestal that the dynamic load, which loads anti-deviation device, turbine box, Balance Iron, electromagnet, testing stand, upper grip, lower collet, connecting rod, crossbeam, the turbine box is set on the pedestal, it is located at the turbine box two sides on the pedestal and is equipped with guide post, the two sides of the turbine box are bonded with the guide post, the turbine box moves up and down along the guide post, the upper end of the turbine box connects the Balance Iron, the turbine box is used to adjust the height of the Balance Iron, the upper end of the Balance Iron is provided with the electromagnet, the testing stand is arranged in the top of the electromagnet, magnetic gap regulating device is equipped between the testing stand and the electromagnet, the lower collet is fixed on the testing stand, for fixing test specimen between the lower collet and the upper grip, the upper grip is connected to the crossbeam by connecting rod.
Description
Technical field
The invention belongs to the technical fields such as the fatigue test of gear, and in particular to a kind of anti-deviation dress of dynamic load load
It sets.
Background technique
It is continuous to the experiment and detection means of engineering goods with the development of mechanical industry and the continuous improvement of scientific research level
More stringent requirements are proposed.
In design of gears, especially for relatively high gear is required in terms of reliability, according to reliability theory pair
The result for the assessment that safety coefficient carries out can not almost reflect the reliability level of gear.It is thus typically necessary to gear
Fatigue test is carried out, to examine the reliability and durability of gear, especially.
The fatigue test of gear, metal material and its component needs to measure gear, metal material and its component and is drawing, pressing
Or the fatigue properties under tension and compression alternating load, fracture mechanics, the test and detection of crack growth rate etc..It is being equipped with corresponding folder
When tool, fixture is able to carry out gear life test, bar samples drawingand pressing fatigue, plate tensile sample drawingand pressing fatigue, 3 points/four-point bending
Fatigue.
When carrying out the load of dynamic load to test specimens such as gear, metal material and its components using electromagnetic exciter, electricity
Magnet exciter is easy sideslip in the horizontal direction when vertical direction moves, to cause load loading position inaccurate.
Therefore, how to solve the problems, such as electromagnetic exciter because of load loading position inaccuracy caused by horizontal direction sideslip,
The technical problem urgently to be resolved as those skilled in the art.
Summary of the invention
The present invention is directed at least solve the technical problems existing in the prior art, a kind of anti-race of dynamic load load is proposed
Deflection device can improve the problem of the existing technology.
Provide to achieve the purpose of the present invention a kind of dynamic load load anti-deviation device include pedestal, turbine box,
Balance Iron, electromagnet, testing stand, upper grip, lower collet, connecting rod, crossbeam, the turbine box are set on the pedestal, institute
It states and is located at the turbine box two sides on pedestal equipped with guide post, the two sides of the turbine box are bonded with the guide post, the whirlpool
Roller box moves up and down along the guide post, and the upper end of the turbine box connects the Balance Iron, and the turbine box is for adjusting institute
The height of Balance Iron is stated, the upper end of the Balance Iron is provided with the electromagnet, and the test is arranged in the top of the electromagnet
Platform is equipped with magnetic gap regulating device, is fixed with the lower collet, institute on the testing stand between the testing stand and the electromagnet
It states for fixing test specimen between lower collet and the upper grip, the upper grip is connected to the crossbeam by connecting rod.
Preferably, the magnetic gap regulating device includes turbine and worm screw, and the turbine and the worm screw engage.
Preferably, heel post is equipped between the crossbeam and the pedestal, the heel post is used to support the crossbeam.
Preferably, the predeterminated position of the heel post is equipped with close to switch, and the close switch is for detecting the test
Whether platform arrives at predeterminated position, if the testing stand arrive at predeterminated position, control the supply current for reducing the electromagnet or
Supply current described in person's terminal.
Preferably, the heel post is equipped with button box, and the button box is for receiving manual control signal, to control
State stepper motor movement.
Preferably, force snesor is equipped between the connecting rod and the crossbeam.
Preferably, the pedestal is fixed on the basis of cement floor by pedestal spring.
The invention has the advantages that：
Dynamic load provided by the invention loads anti-deviation device, electromagentic resonance is based on by load driving, by dynamic
State load is superimposed upon on static load, applies stress to test specimen, is located at the turbine box two sides on the base and is equipped with guiding
Column, the two sides of the turbine box are bonded with the guide post, and the turbine box moves up and down along the guide post, and turbine box is upper
In lower motion process, guide post can prevent turbine box from deviating in the horizontal direction, so that turbine box is transported in vertical direction straight line
It is dynamic, and then can guarantee to test specimen the phenomenon that the application point that vertical direction applies load is not in sideslip.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the dynamic load that embodiment of the present invention provides loads anti-deviation device.
Wherein, description of symbols：
Pedestal spring 1, pedestal 2, turbine box 3, ball screw 4, travel switch 5, guide post 6, stepper motor 7, lubricating cup 8,
Nut 9, Balance Iron 10, electromagnet 11, button box 12, weight tray 13, frequency modulation counterweight 14, screw 15, turbine 16, worm screw 17,
Testing stand 18, lower collet 19, test specimen 20, upper grip 21, connecting rod 22, force snesor 23, crossbeam 24, big semielliptic spring 25.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not construed as limiting the claims.
Referring to FIG. 1, Fig. 1 is the structural representation that the dynamic load that embodiment of the present invention provides loads anti-deviation device
Figure.
As shown in Figure 1, it includes pedestal 2, turbine box 3, balance that the present invention, which provides a kind of dynamic load load anti-deviation device,
Iron 10, electromagnet 11, testing stand 18, lower collet 19, upper grip 21, connecting rod 22, crossbeam 24, the turbine box 3 are set to institute
It states on pedestal 2,3 two sides of turbine box is located on the pedestal 2 and are equipped with guide post 6, the two sides of the turbine box 3 are led with described
It is bonded to column 6, the turbine box 3 moves up and down along the guide post 6.Guide post 6 plays the role of guiding and limit；The whirlpool
The upper end of roller box 3 connects the Balance Iron 10, and the turbine box 3 is used to adjust the height of the Balance Iron 10, the Balance Iron
10 upper end is provided with the electromagnet 11, and the top of the electromagnet 11 is arranged the testing stand 18, the testing stand 18 with
It is equipped with magnetic gap regulating device between the electromagnet 11, is fixed with the lower collet 19, the lower collet on the testing stand 18
For fixing test specimen 20 between 19 and the upper grip 21, the upper grip 21 is connected to the crossbeam 24 by connecting rod 22.
Dynamic load provided by the invention loads anti-deviation device, electromagentic resonance is based on by load driving, by dynamic
State load is superimposed upon on static load, applies stress to test specimen, is located at the turbine box two sides on the base and is equipped with guiding
Column, the two sides of the turbine box are bonded with the guide post, and the turbine box moves up and down along the guide post, and turbine box is upper
In lower motion process, guide post can prevent turbine box from deviating in the horizontal direction, so that turbine box is transported in vertical direction straight line
It is dynamic, and then can guarantee to test specimen the phenomenon that the application point that vertical direction applies load is not in sideslip.
In preferred scheme, ball screw 4, stepper motor 7 are provided in the turbine box 3；Under the ball screw 4
End connection turbine box 3, upper end connect the Balance Iron 10, and the stepper motor 7 drives 4 stretching motion of ball screw to adjust
Save the height of Balance Iron 10.Ball screw 4 is driven to carry out stretching motion by stepper motor 7, with the height of adjustment iron 10,
The stepless speed regulation of 10 height of Balance Iron may be implemented.
In specific scheme, the upper end of ball screw 4 is set with nut 9, by the adjustable nut 9 of special spanner with
Gap between ball screw 4.
In preferred scheme, the junction of the stepper motor 7 and the ball screw 4 is equipped with lubricating cup 8, passes through lubricating cup 8
Lubricating oil can be added to ball screw 4, ball screw 4 is lubricated.
It further include the frequency modulation counterweight 14 for adjusting resonant frequency, the frequency modulation counterweight 14 is symmetrically set in preferred scheme
In the two sides of the electromagnet 11.Frequency modulation counterweight 14 is asymmetrical load, and frequency modulation counterweight 14 is connected to examination by big semielliptic spring 25
It tests on the main screw rod between platform 18 and electromagnet 11, excitation system is constituted by frequency modulation counterweight 14 and big semielliptic spring 25, by changing
The quantity of modified tone frequency counterweight 14 can change running frequency.
In preferred scheme, the lower section of the frequency modulation counterweight 14 is equipped with the weight tray for being used to support extra frequency modulation counterweight 14
13.Extra frequency modulation counterweight 14 can be placed on weight tray 13.
It further include the screw 15 for passing through the frequency modulation counterweight 14 in preferred scheme.For the ease of placing frequency modulation weight
Code 14, frequency modulation counterweight 14 can pass through the screw 15, and the screw of different length can be selected according to the quantity of frequency modulation counterweight 14
15。
In preferred scheme, the magnetic gap regulating device includes turbine 16 and worm screw 17, the turbine 16 and the worm screw
17 engagements, the main screw rod between the 16 joint test platform 18 of turbine and electromagnet 11 can rotate snail by special handle
Bar 17, and then pass through the length that revolving wormgear 16 adjusts main screw rod, to adjust magnetic air gap.
In preferred scheme, heel post is equipped between the crossbeam 24 and the pedestal 2, the heel post is used to support institute
State crossbeam 24.
In further embodiment, the predeterminated position of the heel post is equipped with close to switch, and the close switch is for detecting
Whether the testing stand 18 arrives at predeterminated position, if the testing stand 18 arrives at predeterminated position, controls and reduces the electromagnet
Supply current described in 11 supply current or terminal.Mechanical position limitation protection may be implemented or load occur more than full scale
When the abnormal conditions such as 110% or over-and under-voltage, overcurrent, communication mistake, to realize mandatory protection.
In preferred scheme, the heel post is equipped with button box 12, and the button box 12 manually controls letter for receiving
Number, it is acted with controlling the stepper motor 7.
In preferred scheme, it is equipped with force snesor 23 between the connecting rod 22 and the crossbeam 24, passes through force snesor
23 can detecte the pulling force or pressure that the test specimen 20 is born.
In preferred scheme, the pedestal 2 is fixed on the basis of cement floor by 2 spring 1 of pedestal.
In preferred scheme, in specific embodiment, the both ends of test specimen 20 are clamped in upper grip 21 and lower collet 19 respectively
Grasping part in.
Structure, feature and effect of the invention, the above institute are described in detail based on the embodiments shown in the drawings
Only presently preferred embodiments of the present invention is stated, but the present invention does not limit the scope of implementation as shown in the drawings, it is all according to structure of the invention
Think made change or equivalent example modified to equivalent change, when not going beyond the spirit of the description and the drawings,
It should all be within the scope of the present invention.
Claims (7)
1. a kind of dynamic load loads anti-deviation device, which is characterized in that including pedestal, turbine box, Balance Iron, electromagnet, examination
Platform, upper grip, lower collet, connecting rod, crossbeam are tested, the turbine box is set on the pedestal, is located on the pedestal described
Turbine box two sides are equipped with guide post, and the two sides of the turbine box are bonded with the guide post, and the turbine box is along the guide post
It moves up and down, the upper end of the turbine box connects the Balance Iron, and the turbine box is used to adjust the height of the Balance Iron, institute
The upper end for stating Balance Iron is provided with the electromagnet, and the testing stand, the testing stand and institute is arranged in the top of the electromagnet
State and be equipped with magnetic gap regulating device between electromagnet, be fixed with the lower collet on the testing stand, the lower collet and it is described on
For fixing test specimen between collet, the upper grip is connected to the crossbeam by connecting rod.
2. dynamic load according to claim 1 loads anti-deviation device, which is characterized in that the magnetic gap regulating device packet
Include turbine and worm screw, the turbine and worm screw engagement.
3. dynamic load according to claim 1 or 2 loads anti-deviation device, which is characterized in that the crossbeam with it is described
Heel post is equipped between pedestal, the heel post is used to support the crossbeam.
4. dynamic load according to claim 3 loads anti-deviation device, which is characterized in that the default position of the heel post
It has installed close to switch, the close switch is for detecting whether the testing stand arrives at predeterminated position, if the testing stand supports
Up to predeterminated position, then supply current described in the supply current for reducing the electromagnet or terminal is controlled.
5. dynamic load according to claim 3 loads anti-deviation device, which is characterized in that the heel post is equipped with and presses
Button box, the button box is for receiving manual control signal, to control the stepper motor movement.
6. dynamic load according to claim 1 loads anti-deviation device, which is characterized in that the connecting rod and the cross
Force snesor is equipped between beam.
7. dynamic load according to claim 1 loads anti-deviation device, which is characterized in that the pedestal passes through pedestal bullet
Spring is fixed on the basis of cement floor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810796352.0A CN108918140A (en) | 2018-07-19 | 2018-07-19 | Dynamic load loads anti-deviation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810796352.0A CN108918140A (en) | 2018-07-19 | 2018-07-19 | Dynamic load loads anti-deviation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108918140A true CN108918140A (en) | 2018-11-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810796352.0A Pending CN108918140A (en) | 2018-07-19 | 2018-07-19 | Dynamic load loads anti-deviation device |
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| CN (1) | CN108918140A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113460332A (en) * | 2021-07-10 | 2021-10-01 | 中国飞机强度研究所 | Dynamic compression test device for energy absorption structure |
Citations (5)
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|---|---|---|---|---|
| JP2011038817A (en) * | 2009-08-07 | 2011-02-24 | Railway Technical Res Inst | Frequency variable fatigue testing device using electrically operated vibration generator |
| CN104034616A (en) * | 2014-05-29 | 2014-09-10 | 河海大学 | Electromagnetic type stay cable fatigue tester |
| CN104777054A (en) * | 2015-05-18 | 2015-07-15 | 浙江工业大学 | Method for identifying parameters of resonant fatigue crack propagation test vibration system based on soft sensing technology |
| CN105004620A (en) * | 2015-07-16 | 2015-10-28 | 浙江工业大学 | High-frequency fatigue testing machine dynamic load error compensation method |
| CN207976358U (en) * | 2018-04-04 | 2018-10-16 | 中国工程物理研究院总体工程研究所 | Device for the enterprising row metal fatigue of materials experiment of shake table |
-
2018
- 2018-07-19 CN CN201810796352.0A patent/CN108918140A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011038817A (en) * | 2009-08-07 | 2011-02-24 | Railway Technical Res Inst | Frequency variable fatigue testing device using electrically operated vibration generator |
| CN104034616A (en) * | 2014-05-29 | 2014-09-10 | 河海大学 | Electromagnetic type stay cable fatigue tester |
| CN104777054A (en) * | 2015-05-18 | 2015-07-15 | 浙江工业大学 | Method for identifying parameters of resonant fatigue crack propagation test vibration system based on soft sensing technology |
| CN105004620A (en) * | 2015-07-16 | 2015-10-28 | 浙江工业大学 | High-frequency fatigue testing machine dynamic load error compensation method |
| CN207976358U (en) * | 2018-04-04 | 2018-10-16 | 中国工程物理研究院总体工程研究所 | Device for the enterprising row metal fatigue of materials experiment of shake table |
Non-Patent Citations (2)
| Title |
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| 米亦农: "国外高频疲劳试验机的发展状况", 《材料试验机》 * |
| 郝岷: "《自动化生产线设备维修》", 31 August 2011 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113460332A (en) * | 2021-07-10 | 2021-10-01 | 中国飞机强度研究所 | Dynamic compression test device for energy absorption structure |
| CN113460332B (en) * | 2021-07-10 | 2023-09-22 | 中国飞机强度研究所 | Dynamic compression test device for energy absorption structure |
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Application publication date: 20181130 |