CN109580204A - A kind of damper fatigue experimental device of linear motor driving - Google Patents
A kind of damper fatigue experimental device of linear motor driving Download PDFInfo
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- CN109580204A CN109580204A CN201811594660.1A CN201811594660A CN109580204A CN 109580204 A CN109580204 A CN 109580204A CN 201811594660 A CN201811594660 A CN 201811594660A CN 109580204 A CN109580204 A CN 109580204A
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- linear motor
- experimental device
- fatigue experimental
- motor driving
- top plate
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/04—Suspension or damping
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- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to automotive inspection equipment technical fields, more particularly to a kind of damper fatigue experimental device of linear motor driving, including outer framework, driving mechanism and function accessories, the outer framework include pedestal, intermediate membrane and top plate, the pedestal is equipped with several foundation bolts, the base bottom is arranged with cushion collar, and the cushion collar is hollow structure, is filled with buffer in the cushion collar；The driving mechanism is mounted on the base, and the driving mechanism includes the motion module on two groups of vertical directions being made of linear motor；The function accessories include the second fixture for being set to the first fixture of top plate and being mounted in intermediate membrane.The present invention uses the full driving scheme of linear motor driving, there is no fricting movement component, service life is long, collisionless, no greasy dirt, low noise, work efficiency is high, the loss of energy is less, reduces electric energy loss, is widely portable to damper model center building and the speed characteristics test of the vehicles such as automobile, motorcycle.
Description
Technical field
The present invention relates to the damper fatigue examinations that automotive inspection equipment technical field more particularly to a kind of linear motor drive
Experiment device.
Background technique
With the rise of new-energy automobile, automobile main frame maker is to part manufacturer, in laboratory background noise and survey
Examination specification proposes new high standards, and the following test experimental facilities is forced to be promoted in technical indicator and system schema,
The testing experiment of related components requires also be continuously improved, and existing damper fatigue tester is unable to satisfy wanting for industry
It asks.Now widely used damper fatigue tester, using first generation Mechanical Driven technology and second generation Hydraulic servo drive
Technology, noise is big when this two generations testing machine is run, bad environments.
Hydraulic type automobile damper fatigue tester is carrying out detection process, and for hydraulic oil since long-time uses, inside is mixed
There are mechanical admixture and corrosive deposit, causes its film strength of hydraulic oil to be not enough to bear the pressure of workload, cause metal watch
Face contacts with each other, and sharply increases so as to cause frictional force, accelerates the embarrassed damage of part, while the greasy property decline of hydraulic Shan makes liquid
The inside of press pump and hydraulic motor, which is tut-tuted, closes surface wear；Hydraulic Shan when in use, such as temperature drift, can make the viscosity of hydraulic Shan simultaneously
It reduces, lubricity decline can make Shan pump and Hydraulic Elements wear quickening at work, be easy to cause leakage.If temperature is relatively low, meeting
Increase the viscosity of hydraulic Shan, it will to cause the kinematic dexterity of Hydraulic Elements to decline, motor element may be made not when serious
It can move, influence to work normally.Mechanical automobile damper fatigue tester is even more there are mechanical structures not flexible, controllability
Difference, insufficiency, technical indicator fall behind, and the huge NOISE ON ENVIRONMENT of generation influences the defects of serious.
The mode that existing automobile absorber fatigue tester mostly uses foundation bolt to pour in mattess is fixed, and
Solving in such a way that automobile absorber fatigue tester surrounding ground digs shockproof ditch, noise is big, vibration transmitting is extraneous is asked
Topic.Shockproof ditch digs the stabilization for being unfavorable for building, has some potential safety problems, therefore, develops a kind of novel automobile
Damper fatigue tester has important research significance.
Summary of the invention
The present invention provides one to overcome the problems, such as that existing damper fatigue tester noise is big, depends on shockproof ditch
The shockproof noise reduction of kind, versatility are good, the damper fatigue experimental device of the linear motor driving of no greasy dirt, without destroying building machine
Structure, it is easy for installation.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of damper fatigue experimental device of linear motor driving, including outer framework, driving mechanism and function accessories, it is described outer
Frame includes pedestal, intermediate membrane and top plate, and the pedestal is equipped with several foundation bolts, and the base bottom is arranged with slow
Punching set, the cushion collar are hollow structure, are filled with buffer in the cushion collar；The driving mechanism is mounted on the base,
The driving mechanism includes the motion module on two groups of vertical directions being made of linear motor；The function accessories include being set to
First fixture of top plate and the second fixture being mounted in intermediate membrane.
Linear motor be it is a kind of electric energy is directly changed into linear motion mechanical energy, without any intermediate conversion mechanism
Transmission device, the present invention do not have fricting movement portion using full driving scheme by the innovation of driving principle and shockproof principle
Part is arranged by buffer layer, the play using the buffer in buffer layer to generating under damper fatigue experimental device working condition
Violent shock movable property gives birth to buffer function, avoids excessive vibration from driving to ground, and be not necessarily to the building structure on failure test device periphery,
Without opening up shockproof ditch structure, be conducive to stability and safety.The damper fatigue experimental device service life of the invention is long, and nothing is touched
It hits, no greasy dirt, low noise, work efficiency is high, and the loss of energy is less, reduces electric energy loss.It is suitable according to customer demand selection
Linear motor meet the test requirements document customer requirement of product, linear motor is connected by concatenated mode, reaches synchronously control
Effect, when installation needs to adjust motor phase, keeps motor phase identical.The outer framework design is simple, facilitates installation, meets
Fatigue test requirement, with 10 times of safety coefficient.It is effective workspace between intermediate membrane and upper plate when the invention work
Domain can be raised to specified altitude assignment, move assigned frequency and amplitude, and can carry out more difficult for traditional experiment machine
Road wave test.The present invention can input different operating conditions, random waveform, such as road conditions waveform according to the difference of damper,
The road wave test emulated, has certain versatility.
Preferably, the buffer is by the machine oil of 15~50wt% and the molybdenum disulphide grease group of 50~85wt%
At.
Machine oil is made of base oil and additive two parts；Molybdenum disulphide grease is closed by inorganic thickening agent thickening esters
At oil, and added with the refined molybdenum disulfide pole of the multiple additives such as molybdenum disulfide solid lubricant and anti-oxidant, anti-corrosion
Pressure grease.Buffer selected by the present invention is compounded by machine oil and molybdenum disulphide grease according to said ratio, the compounding ratio
The obtained buffer of example is than pure machine oil large viscosity, and smaller than pure molybdenum disulphide grease viscosity, resulting buffer is standing shape
There is apparent layer structure under state, there is excellent absorbing sound and lowering noise and cushioning buffer effect.
Preferably, the pedestal surrounding is uniformly provided with several support columns, the support column passes through intermediate membrane and top
Plate is fixedly connected；The pedestal is equipped with preformed hole, and the foundation bolt passes through preformed hole, is fixedly connected by nut with pedestal；
The preformed hole upper end is equipped with limiting groove, and butterfly spring component is equipped between the foundation bolt and nut.
Disk spring is special spring that is tapered in the axial direction and bearing load, after bearing load deformation, savings one
Fixed potential energy, when bolt relaxes, disk spring discharges part potential energy to keep the pressure between flanged joint to reach sealing
It is required that.Disk spring stress distribution is uniformly successively decreased from inside to outside, can be realized the effect of the high balancing force of low row journey, and the present invention utilizes
Butterfly spring is conducive to slow down the shock effect between pedestal and foundation bolt, prevents from generating in foundation bolt long-term use process
It loosens, improves the safety of equipment, be conducive to extend service life.
Preferably, the motion module includes linear motor fixing seat, it is heavy inside the linear motor fixing seat to have one
Platform linear motor coil component, linear motor fixing seat two sides are equipped with guide rail, are equipped between two linear motor fixing seats
Magnetic sheet, the magnetic sheet are arranged by several magnet steel；The upper end of the magnetic sheet is fixedly connected with the second fixture, and the two of the magnetic sheet
Side is equipped with sliding block, and is slidably connected by sliding block and guide rail.
Preferably, the distance controlling of the magnetic sheet and two linear motor coil components is in 0.7~1.0mm.
Preferably, the linear motor fixing seat is less than 0.02mm by the deformation quantity that electromagnetic attraction occurs.
Preferably, the linear motor fixing seat realizes limit by upper limit position block and lower position block.
Preferably, the upper surface of the top plate is welded with I-shaped floor, the mechanical shock for being conducive to enhance top plate is strong
Degree.
Preferably, the lower end surface of the top plate is equipped with force snesor, the force snesor is fixedly connected with the first fixture.
The detection that force snesor is used for test pressure is installed, motor loading force size is acquired using force snesor, and pass through interface reality
When display be depicted as curve.
Preferably, the pedestal is equipped with several foundation bolts, stabilizing equipment reduces its vibration, reduces noise.
Preferably, being equipped with safe grating between the intermediate membrane and top plate, light curtain is installed in positive direction, to work
Personnel are protected, and have safety protection function.
Preferably, further including temperature control mechanism, the temperature of real-time detection work system prevents linear motor from overheating, and guarantees
Detection is normally carried out, and temperature control mechanism of the present invention, which includes that temperature sensor or cooler etc. are any, may be implemented temperature adjusting
Conventional device.
Therefore, the invention has the following beneficial effects:
(1) present invention does not have fricting movement component, the service life is long, collisionless, nothing using the full driving scheme of linear motor driving
Greasy dirt, low noise, work efficiency is high, and the loss of energy is less, reduces electric energy loss；
(2) by being arranged built-in machine oil/molybdenum disulphide grease buffer buffer layer in pedestal, there is absorbing sound and lowering noise and damping
Buffer function, without opening up shockproof ditch, damper model center building and the speed for being widely portable to the vehicles such as automobile, motorcycle are special
Property test, equipment uses advanced mechanical structure and electric control system, and the service life of testing machine and steady has been effectively ensured
Qualitative, basic mechanical design feature and appearance reach same kind of products at abroad advanced level.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the invention.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the assembling structure cross-sectional view of cushion collar and pedestal and foundation bolt.
Fig. 4 is the partial enlarged view of A in Fig. 3.
In figure: pedestal 1, intermediate membrane 2, top plate 3, foundation bolt 4, cushion collar 5, buffer 6, motion module 7, the first folder
Tool 8, the second fixture 9, support column 10, preformed hole 11, limiting groove 12, butterfly spring component 13, linear motor fixing seat 14 are led
Rail 15, sliding block 16, upper limit position block 17, lower position block 18, I-shaped floor 19, force snesor 20, safe grating 21, flange 22,
Nut 23, no guide rail bearing 24, magnetic grid and reading head 25.
Specific embodiment
Below by specific embodiment, and in conjunction with attached drawing, the technical solutions of the present invention will be further described.
As shown in Figures 1 to 4, a kind of damper fatigue experimental device of linear motor driving, including outer framework, driving machine
Structure, temperature control mechanism and function accessories, outer framework include that there are four the pedestal 1 of foundation bolt 4, intermediate membrane 2 and upper surfaces for installation
It is welded with the top plate 3 of I-shaped floor 19, lower end surface equipped with force snesor 20, base bottom is arranged with slow with hollow structure
Punching set 5, cushion collar is interior filled with the buffering being made of the machine oil of 15~50wt% and the molybdenum disulphide grease of 50~85wt%
Liquid 6；The driving mechanism is mounted on the base, and the driving mechanism includes on two groups of vertical directions being made of linear motor
Motion module 7；Function accessories include the second fixture 9 fixture 8 and be mounted in intermediate membrane set on the first of top plate, power sensing
Device is fixedly connected with the first fixture；Pedestal surrounding is set using flange 22 there are four support column 10, the support column pass through middle part every
Plate is fixedly connected with top plate；The pedestal is equipped with preformed hole 11, and foundation bolt passes through preformed hole, fixed by nut 23 with pedestal
Connection；Preformed hole upper end is equipped with limiting groove 12, and butterfly spring component 13 is equipped between the foundation bolt and nut；Move mould
Block includes that internal sink has a linear motor coil component linear motor fixing seat 14, and linear motor fixing seat two sides are equipped with guide rail
15, it is equipped between two linear motor fixing seats and magnetic sheet is formed by the arrangement of several magnet steel, the upper end of magnetic sheet is fixed with the second fixture
The two sides of connection, magnetic sheet are equipped with sliding block 16, are fixed on guide rail by the sliding block on the ear of two sides, and sliding by sliding block and guide rail
The distance controlling of dynamic connection, magnetic sheet and two linear motor coil components is in 0.7~1.0mm；The linear motor fixing seat by
The deformation quantity occurred to electromagnetic attraction is less than 0.02mm；Linear motor fixing seat is realized by upper limit position block 17 and lower position block 18
Limit；Safe grating 21 is equipped between intermediate membrane and top plate；Linear motor fixing seat two sides are equipped with no guide rail bearing 24, middle part
It is effective working region between intermediate membrane and upper plate equipped with magnetic grid and reading head 25.
Specific implementation method of the invention:
Then first mounting foot bolt is arranged cushion collar in base bottom, later according to the routine operation fixed straight line of this field
Motor-driven damper fatigue experimental device.
Experimental facilities includes two test stations, and motion control data acquisition etc. is carried out by same software and hardware, and
The two stations are not interfere with each other independently of each other.Equipment needs to initialize after being powered, and initialization procedure requires motor to look for
Zero-bit, null positions, which are positive, to be limited at the negative limit 18mm of distance on direction；
Fatigue test: fatigue test can be carried out according to specified operation equation, can shows measured piece actual motion in display interface
Waveform and waveform can automatically save and wave file can be read, and contents displayed on interface is abundant.
The test of road wave: the waveform that can import regulation file format carries out fatigue test, can show measured piece in display interface
Actual motion waveform and waveform can automatically save and wave file can be read.
Equipment cooling action: when measured piece temperature is more than setting range, equipment enters cooling action, and equipment will be slow at this time
Speed movement continues fatigue test or the test of road wave when temperature is reduced to assigned temperature.
The present invention uses the full driving scheme of linear motor driving, does not have fricting movement component, and the service life is long, collisionless,
Without greasy dirt, low noise, work efficiency is high, and the loss of energy is less, reduces electric energy loss；By pedestal be arranged built-in machine oil/
The buffer layer of molybdenum disulphide grease buffer has absorbing sound and lowering noise and cushioning buffer effect can be extensive without opening up shockproof ditch
Damper model center building and speed characteristics suitable for vehicles such as automobile, motorcycles are tested, and equipment uses advanced mechanical knot
Structure and electric control system, have been effectively ensured the service life and stability of testing machine, and basic mechanical design feature and appearance reach state
Outer similar product advanced level.The foregoing is merely presently preferred embodiments of the present invention, not makees in any form to the present invention
Limitation, there are also other variations and modifications on the premise of not exceeding the technical scheme recorded in the claims.
Claims (10)
1. a kind of damper fatigue experimental device of linear motor driving, which is characterized in that including outer framework, driving mechanism and function
Energy attachment, the outer framework includes pedestal (1), intermediate membrane (2) and top plate (3), and the pedestal is equipped with several lower margin spiral shells
Bolt (4), the base bottom are arranged with cushion collar (5), and the cushion collar is hollow structure, are filled with buffering in the cushion collar
Liquid (6)；The driving mechanism is mounted on the base, and the driving mechanism includes on two groups of vertical directions being made of linear motor
Motion module (7)；The function accessories include the second folder for being set to the first fixture (8) of top plate and being mounted in intermediate membrane
Have (9).
2. a kind of damper fatigue experimental device of linear motor driving according to claim 1, which is characterized in that described
Buffer is made of the machine oil of 15~50wt% and the molybdenum disulphide grease of 50~85wt%.
3. a kind of damper fatigue experimental device of linear motor driving according to claim 1, which is characterized in that described
Pedestal surrounding is uniformly provided with several support columns (10), and the support column passes through intermediate membrane and is fixedly connected with top plate；The bottom
Seat is equipped with preformed hole (11), and the foundation bolt passes through preformed hole, is fixedly connected by nut with pedestal；The preformed hole upper end
Equipped with limiting groove (12), butterfly spring component (13) are equipped between the foundation bolt and nut.
4. a kind of damper fatigue experimental device of linear motor driving according to claim 1, which is characterized in that described
Motion module includes linear motor fixing seat (14), heavy inside the linear motor fixing seat to have a linear motor coil group
Part, linear motor fixing seat two sides are equipped with guide rail (15), and magnetic sheet, the magnetic sheet are equipped between two linear motor fixing seats
It is arranged by several magnet steel；The upper end of the magnetic sheet is fixedly connected with the second fixture, and the two sides of the magnetic sheet are equipped with sliding block
(16), it and by sliding block and guide rail is slidably connected.
5. a kind of damper fatigue experimental device of linear motor driving according to claim 4, which is characterized in that described
The distance controlling of magnetic sheet and two linear motor coil components is in 0.7~1.0mm；The linear motor fixing seat is inhaled by electromagnetism
The deformation quantity that power occurs is less than 0.02mm.
6. a kind of damper fatigue experimental device of linear motor driving according to claim 4, which is characterized in that described
Linear motor fixing seat realizes limit by upper limit position block (17) and lower position block (18).
7. a kind of damper fatigue experimental device of linear motor driving according to claim 1, which is characterized in that described
The upper surface of top plate is welded with I-shaped floor (19).
8. a kind of damper fatigue experimental device of linear motor driving according to claim 1, which is characterized in that described
The lower end surface of top plate is equipped with force snesor (20), and the force snesor is fixedly connected with the first fixture.
9. a kind of damper fatigue experimental device of linear motor driving according to claim 1, which is characterized in that described
Safe grating (21) are equipped between intermediate membrane and top plate.
10. a kind of damper fatigue experimental device of linear motor driving according to claim 1, which is characterized in that also
Including temperature control mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811594660.1A CN109580204A (en) | 2018-12-25 | 2018-12-25 | A kind of damper fatigue experimental device of linear motor driving |
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| CN201811594660.1A CN109580204A (en) | 2018-12-25 | 2018-12-25 | A kind of damper fatigue experimental device of linear motor driving |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110186662A (en) * | 2019-06-06 | 2019-08-30 | 宁波亿文特自动化科技有限公司 | Fatigue testing machine and fatigue testing method for shock absorber |
| EP4290205A3 (en) * | 2022-06-08 | 2024-04-24 | ZF Friedrichshafen AG | Test device for components subject to vibration loads |
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Address after: 315800 no.1-203, building a, No.36, Moganshan Road, Xinqi, Beilun District, Ningbo City, Zhejiang Province Applicant after: Ningbo hundred million Wen Te automation Science and Technology Ltd. Address before: 315800 Zhejiang Province, Ningbo city Beilun District 36 Moganshan Road 205 building A Applicant before: Ningbo hundred million Wen Te automation Science and Technology Ltd. |
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Application publication date: 20190405 |