CN109187244A - A kind of test method based on drag-line fatigue testing equipment - Google Patents
A kind of test method based on drag-line fatigue testing equipment Download PDFInfo
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- CN109187244A CN109187244A CN201811235271.XA CN201811235271A CN109187244A CN 109187244 A CN109187244 A CN 109187244A CN 201811235271 A CN201811235271 A CN 201811235271A CN 109187244 A CN109187244 A CN 109187244A
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- connecting rod
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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
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/38—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by electromagnetic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/005—Electromagnetic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
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- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of test methods based on drag-line fatigue testing equipment, mainly solves the stretching executing agency that drag-line fatigue testing equipment existing in the prior art uses pneumatic linear actuator to test as inhaul cable operating effect, there are tensile speed and stretching travel technical problems not easy to control.The Novel bracing cable fatigue testing equipment includes two sets of test mechanisms, can carry out two kinds of different size drag-lines simultaneously and carry out testing fatigue；When test, tension test is carried out to drag-line by the connecting rod in CYCLIC LOADING mechanism, and the force value and shift value of load cell and displacement sensor are recorded in real time, signal is uploaded to host computer, and be shown on display screen convenient for controlling tensile speed and stretching travel, there is preferable utilization and extention value.
Description
Technical field
The present invention relates to automotive fields, are related specifically to a kind of test method based on drag-line fatigue testing equipment.
Background technique
Automobile is to be related to the important vehicles of personal safety, therefore the security performance countries in the world of its key fitment are all made
Surely there is relevant criterion.More for use occasion of the stay rope for vehicle on automobile, numerous in variety as needed, such as rear braking is drawn
Rope, preceding brake cable and clutch cable, throttle cable etc., and belong to vulnerable part, if standard, which is not achieved, will affect vehicle
Security performance.Drag-line is made of core wire and pillar, and core wire is through in pillar and can twitch in pillar, and both ends are welded with tin
Head.For the safty in use, test of the drag-line to travel efficiency and load efficiency is carried out is needed.
And for the drag-line in gearshift mechanism of automotive transmission, which directly affects the reliability of gearshift, therefore
It is indispensable for carrying out testing fatigue to it.
But by finding during project test, drag-line fatigue testing equipment in the prior art uses pneumatic linear actuator conduct
The stretching executing agency of inhaul cable operating effect test haves the shortcomings that tensile speed and stretching travel are not easy to control.The present invention
Exactly it is subject to aiming at the shortcomings in the prior art improved.
Summary of the invention
One of the object of the invention is to solve existing drag-line fatigue testing equipment in the prior art to use pneumatic linear actuator conduct
The stretching executing agency of inhaul cable operating effect test, there are tensile speed and stretching travel technical problems not easy to control, mention
A kind of Novel bracing cable fatigue testing equipment is gone out, using servo motor substitution pneumatic linear actuator as executing agency, the Novel bracing cable is tired
Labor test equipment includes two sets of test mechanisms, can carry out two kinds of different size drag-lines simultaneously and carry out testing fatigue；When test, by following
Connecting rod in ring loading mechanism carries out tension test to drag-line, and record in real time load cell and displacement sensor force value and
Shift value, signal are uploaded to host computer, and are shown on display screen convenient for controlling tensile speed and stretching travel.
The second object of the present invention is to provide a kind of test method based on drag-line fatigue testing equipment.
To reach one of above-mentioned purpose, the invention adopts the following technical scheme:
A kind of Novel bracing cable fatigue testing equipment, comprising:
One rack 4；
One strainer 1 is mounted on the worktable panel of the rack 4；
One drag-line curve builder 2, is fixedly mounted on the workbench of rack 4；
One CYCLIC LOADING mechanism 3, including speed regulating motor 42；And
One operation panel 5 and an electrical cabinet 6.
Using above-mentioned technological means, servo motor is used to substitute pneumatic linear actuator as executing agency, equipment includes two sets of testing machines
Structure can carry out two kinds of different size drag-lines simultaneously and carry out testing fatigue；When test, by the connecting rod in CYCLIC LOADING mechanism to drag-line
Tension test is carried out, and records the force value and shift value of load cell and displacement sensor in real time, signal is uploaded to host computer,
And it is shown on display screen convenient for controlling tensile speed and stretching travel.
According to one embodiment of present invention, wherein the strainer 1 be equipped with 2 line slide rails 1, described 2
Root line slide rail 1 is installed in parallel on the worktable panel of the rack 4；Cooperate peace on the every line slide rail 1
Equipped with 2 sliding blocks 1, bottom plate 7 is fixedly mounted by soket head cap screw in the top of 4 sliding blocks 1.Using above-mentioned skill
Art means, 2 sliding blocks 1 can be moved in parallel in 2 line slide rails 1, so that mounting base 7 is driven to move, Jin Erjin
The a series of movement of row.
According to one embodiment of present invention, wherein the one 18 middle position cloth of line slide rail of two parallel arrangements
It is equipped with front-end bearing pedestal 22 and rear bearing block 26, screw rod is installed in the bearing hole of the front-end bearing pedestal 22 and the rear bearing block 26
23, handwheel 21 is installed in the left end of the screw rod 23, is coupled feed screw nut pair 1, the feed screw nut on the screw rod 23
Pair 1 is bolted on the bottom of the bottom plate 7；Spring fixed seat 25, the spring are installed in left end on the bottom plate 7
Snap clasp 1 is coupled on the right side of fixing seat 25；The screw-internal thread fit locking spring drag hook 1 of the spring fixed seat 25
Male end, snap clasp 2 28 is arranged with the spring fixed seat 25 other end in the same horizontal line, in the bullet
Spring 13 is installed between spring drag hook 1 and the snap clasp 2 28.
According to one embodiment of present invention, wherein the top of the bottom plate 72 roller bearings 15 of symmetrical parallel arrangement, it is described
The both ends of roller bearing 15 are separately installed with roller shaft seat 1 and roller shaft seat 2 16；Roller bearing is installed above two parallel roller bearings 15
Sliding block 17,17 middle position of roller bearing sliding block are connected through a screw thread snap clasp 2 28；In the another of the roller bearing sliding block 17
Force signal can be changed into electric signal output by the fixed force snesor 1 of connector 29, force snesor 1 by end, and power passes
The measured value of sensor 1 installs drag-line mounting base 31 on 0~100kg, the right side of the force snesor 1.
According to one embodiment of present invention, wherein the drag-line curve builder 2 by drag-line fixing seat 1,
Drag-line fixing seat 2 34, drag-line fixing seat 3 36 and drag-line fixing seat 4 37 are fixed on the workbench of the rack 4；The drawing
Funicular curve builder 2 includes preceding brake cable 32 and rear brake cable 35.
According to one embodiment of present invention, wherein the CYCLIC LOADING mechanism 3 includes pedestal 41, the CYCLIC LOADING
Mechanism 3 is fixed on the table by the pedestal 41 by bolt；
2 line slide rails 2 40 symmetrically and in parallel are installed on the pedestal 41, are matched on the every line slide rail 2 40
2 sliding blocks 2 39 of installation are closed, is fixedly mounted in the internal screw thread of symmetrical 4 sliding blocks 2 39 by hexagon socket head cap screw and adjusts the speed electricity
Machine worktable 38 installs speed regulating motor 42 on the speed regulating motor workbench 38；The speed regulating motor 42 includes motor and slows down
Machine.
According to one embodiment of present invention, wherein the shaft end of the speed regulating motor 42 passes through keyway setting-up eccentricity wheel 43,
The 43 symmetrical machining two rows kidney-shaped slot of eccentric wheel, the eccentric wheel 43 are bolted eccentric slide plate 44；
Bias 44 shape of slide plate is that a flanged plate one end is processed as circular shaft, installs needle bearing in circular shaft end, together
When in the outer ring of the needle bearing connecting rod 3 59 is installed, pass through interference fit in the inner hole of the other end of the connecting rod 3 59
The other end of installing connecting rods 2 58, the connecting rod 2 58 is mounted in the inner hole of connecting rod 1.
According to one embodiment of present invention, wherein the left end of the connecting rod 1 is provided with attachment base 53, the connection
53 workpiece shapes of seat are that intermediate milling is flat, and there is ear end face at both ends, and the inner hole of the 53 ear end face of attachment base is interference fitted peace
Pin shaft 67 is filled, deep groove ball bearing 68 is installed between the pin shaft 67 and the inner hole of the connecting rod 1；
The attachment base 53 has been bolted guide shaft sliding block 47, and 47 both ends of guide shaft sliding block are mounted on guide shaft 52
On, the guide shaft sliding block 47 is along 52 guiding movement of guide shaft described in both ends；The other end of the guide shaft sliding block 47 is sensed by power
Force snesor 2 55 is fixedly mounted in device link block 56, and force signal can be changed into electric signal output by force snesor 2 55, and power passes
Drag-line stay hook 54 is fixedly mounted in 0~100kg, 2 55 other end of force snesor in the measured value of sensor 2 55.
According to one embodiment of present invention, wherein the rack 4 is built using 40x40 aluminum profile, and the rack 4 is logical
Corner fittings is crossed to be fixedly connected between aluminum profile；Start button and scram button is arranged in the operation panel 5；Described one kind
Novel bracing cable fatigue testing equipment is controlled using PLC system, manual control operation panel 5.
It is the two of arrival above-mentioned purpose, the invention adopts the following technical scheme:
A kind of test method based on drag-line fatigue testing equipment, includes the following steps:
(a) check that preceding brake cable 32 without security risk, is manually placed in drag-line fixing seat 1, drag-line by equipment periphery
In fixing seat 2 34, drag-line fixing seat 3 36 and drag-line fixing seat 4 37, while by preceding brake cable 32 and rear brake cable 35
It is fixed, so that drag-line is coiled into the required curve of test；
(b) one end of drag-line to be tested is fixed in the drag-line mounting base 31 in strainer 1, drag-line to be tested it is another
It holds on the drag-line stay hook 54 being fixedly mounted in CYCLIC LOADING mechanism 3；
(c) manual operation handwheel 21 rotates handwheel 21, and driving screw rod 23 rotates, so that bottom plate 7 is with feed screw nut pair one
Stop after 24 mobile suitable distances；6.1.3 item provides in QC/T2281997 according to national standards, and when test, drag-line to be tested was answered
It is axially stretched along end is stretched with the speed no more than 10mm/s；
(d) start servo motor 66, by the connection of shaft coupling 65, ball screw 63 is rotated, and ball screw transports rotation
Turn is changed to linear motion so that the motor workbench 38 being connect with ball screw 63 by feed screw nut pair 2 62 along
Line slide rail 2 40 is moved to front end designated position；
(e) start speed regulating motor 42, so that the eccentric wheel 43 for being fixed on shaft end rotates, pass through connecting rod 1, connecting rod
2 58, the connection of connecting rod 3 59, driving guide shaft sliding block 47 moves back and forth along the guide shaft 52 of two sides, therefore is fixed on drag-line
Drag-line on stay hook 54 is also with moving back and forth；Fatigue tests can be carried out to two drag-lines simultaneously, test load just
Initial value is measured by the force snesor 1 and force snesor 2 55 at both ends, can using the revolving speed of Frequency Converter Control speed regulating motor 42
Meet the transformation of different tests frequency；Test number (TN) is by counter measures and shows, reading is intuitive, also has power-failure memory function
Energy；Speed regulating motor 42 drives drag-line core wire to move reciprocatingly, and the amplitude of reciprocating motion is adjusted by the kidney slot of eccentric slide plate 44；
(f) movement speed of servo motor 66 is set as less than 10mm/s, the 66 certain stroke of every movement of servo motor, servo
Motor 66 stops, and speed regulating motor 42 is again started up, so that the eccentric wheel 43 for being fixed on shaft end rotates, passes through connecting rod 1, connecting rod
2 58, the connection of connecting rod 3 59, driving guide shaft sliding block 47 move back and forth along the guide shaft 52 of two sides；Drag-line is fixed on to fix
Drag-line on hook 54 is so acted also with moving back and forth until speed regulating motor workbench 38 is moved to right side, servo electricity
66 stopping of machine movement.
The utility model has the advantages that
(1) a kind of drag-line fatigue testing equipment of the present invention is drawn using servo motor substitution pneumatic linear actuator as executing agency
When rope installation test, tension test is carried out to drag-line by the connecting rod in CYCLIC LOADING mechanism, end is stretched and fixing end can be free
Sliding, can displacement to drag-line both ends and load value size, variable quantity real-time measurement record, and computational load efficiency and displacement
Efficiency can show and stretch one time of end force value, one time of fixing end force value in display screen, stretch one time of end movement, solid
Fixed end is displaced the relation curve of a time, overcomes drag-line fatigue testing equipment in the prior art and is grasped using pneumatic linear actuator as drag-line
The stretching executing agency for making efficiency test, there are tensile speed and stretching travel technical problems not easy to control, significantly facilitate
Tensile speed and stretching travel controlled.
(2) a kind of drag-line fatigue testing equipment of the present invention, by workbench, strainer, drag-line curve formation mechanism, is followed
Ring loading mechanism, pulling force and displacement measurement sensor composition, include two sets of test mechanisms, can carry out two kinds of different sizes simultaneously and draw
Suo Jinhang testing fatigue.
(3) measured value of a kind of drag-line fatigue testing equipment of the present invention, force snesor 1 and force snesor 2 55 is 0
~100kg；Grating scale 11 is arranged 2, the stroke measurment for testing fatigue test；Specific technical parameter stretches the examination of end maximum
Testing power is 2000N, and fixing end is strainer 1, and maximum test force 1000N, pilot strength measurement precision is ± 1%；Stretch end
Stroke measurment range is 100mm, and it is 100mm that fixing end stroke, which surveys aobvious range, and stroke measurment precision is ± 0.01mm, testing fatigue
Number is recorded as 0~10000.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is a kind of main view of drag-line fatigue testing equipment general assembly of the present invention.
Fig. 2 is a kind of top view of drag-line fatigue testing equipment general assembly of the present invention.
Fig. 3 is a kind of left view of drag-line fatigue testing equipment general assembly of the present invention.
Fig. 4 is a kind of main view of drag-line fatigue testing equipment strainer of the present invention.
Fig. 5 is a kind of top view of drag-line fatigue testing equipment strainer of the present invention.
Fig. 6 is a kind of left view of drag-line fatigue testing equipment strainer of the present invention.
Fig. 7 is the A of Fig. 5 to cross-sectional view.
Fig. 8 is a kind of main view of drag-line fatigue testing equipment drag-line curve builder of the present invention.
Fig. 9 is a kind of top view of drag-line fatigue testing equipment drag-line curve builder of the present invention.
Figure 10 is a kind of schematic perspective view of drag-line fatigue testing equipment CYCLIC LOADING mechanism of the present invention.
Figure 11 is a kind of main view of drag-line fatigue testing equipment CYCLIC LOADING mechanism of the present invention.
Figure 12 is a kind of top view of drag-line fatigue testing equipment CYCLIC LOADING mechanism of the present invention.
Figure 13 is a kind of left view of drag-line fatigue testing equipment CYCLIC LOADING mechanism of the present invention.
Figure 14 is the B of Figure 12 to cross-sectional view.
Figure 15 is the C of Figure 12 to cross-sectional view.
Figure 16 is the D of Figure 12 to cross-sectional view.
In attached drawing
1, strainer 2, drag-line curve builder 3, CYCLIC LOADING mechanism
4, rack 5, operation panel 6, power control cabinet
7, bottom plate 8, close to switch bracket 9, close to switch one
10, grating scale backing plate 11, grating scale 12, close switch two
13, spring 14, roller shaft seat 1, roller bearing
16, roller shaft seat 2 17, roller bearing sliding block 18, line slide rail one
19, sliding block 1, mounting plate 21, handwheel
22, front-end bearing pedestal 23, screw rod 24, feed screw nut pair one
25, spring fixed seat 26, rear bearing block 27, snap clasp one
28, snap clasp 2 29, connector 30, force snesor one
31, drag-line mounting base 32, preceding brake cable 33, drag-line fixing seat one
34, drag-line fixing seat 2 35, rear brake cable 36, drag-line fixing seat three
37, drag-line fixing seat 4 38, speed regulating motor workbench 39, sliding block two
40, line slide rail 2 41, pedestal 42, speed regulating motor
43, eccentric wheel 44, eccentric slide plate 45, guide shaft seat one
46, close to switch 3 47, guide shaft sliding block 48, linear bearing
49, light deletes ruler 50, close switch 4 51, guide shaft seat two
52, guide shaft 53, attachment base 54, drag-line stay hook
55, force snesor 2 56, force snesor link block 57, connecting rod one
58, connecting rod 2 59, connecting rod 3 60, bearing block one
62, feed screw nut pair 2 63, ball screw 64, bearing block two
65, shaft coupling 66, servo motor 67, pin shaft
68, deep groove ball bearing 69, spacer
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
Embodiment is further elaborated.It is real to should be appreciated that the specific embodiments described herein are merely illustrative of the present invention
Example is applied, embodiment is not intended to limit the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In the description of the present invention, it needs to illustrate
Be unless specifically defined or limited otherwise, term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, can be with
It is to be fixedly connected, may be a detachable connection, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be with
It is to be connected directly, the connection inside two elements can also be can be indirectly connected through an intermediary.For the general of this field
For logical technical staff, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
As shown in Figure 1-Figure 3, a kind of Novel bracing cable fatigue testing equipment, comprising: a strainer 1, a drag-line curve at
Shape mechanism 2, a CYCLIC LOADING mechanism 3, a rack 4, an operation panel 5 and an electrical cabinet 6.
Strainer 1 is mounted on the worktable panel of the rack 4, and is located at the left side of equipment；Drag-line curve at
Shape mechanism 2 is fixedly mounted on the workbench of rack 4, positioned at the centre of workbench；CYCLIC LOADING mechanism 3 is set to rack 4
Right front；Rack 4 is built using 40x40 aluminum profile, and aluminum profile under most environmental conditions, is included in sky gas and water (or salt
Water), in petrochemistry and many chemical systems, aluminium can show excellent corrosion resistance；Aluminum profile also has non-ferromagnetic well
Property, thus the advantages of use aluminum profile as the material of rack 4 herein, aluminum profile is utilized well；Rack 4 passes through corner fittings pair
It is fixedly connected between aluminum profile, corner fittings is cheap, and combination is convenient for disassembly and assembly, and construction is rapidly, beautiful, and adjusts size certainly
Such as, sturdy and durable, it is fixedly connected using corner fittings between aluminum profile, fixed form intensity is higher, good appearance, is suitble to certainly
Dynamicization equipment uses.
Start button and scram button is arranged in operation panel 5, when starting the device, presses start button, equipment stops fortune
When row, stop button is pressed, presses start button, machine is operated.If encountering some imprevisions in operation to ask
Topic, operator can press scram button in time, avoid the operation error because of machine or personnel, cause to lose, and
It is safer reliable.The equipment is controlled using PLC system, manual control operation panel 5, and PLC control system can be compiled using one kind
The memory of journey is used for its internally stored program, executes logical operation, sequential control, timing, count with arithmetical operation etc. towards
The instruction of user, and various types of mechanical or production processes are controlled by number or analog pattern input/output, therefore, this is
System is a kind of core of drag-line fatigue testing equipment of the present invention, in a kind of drag-line fatigue testing equipment movement control of the present invention
It plays an important role in system, process control.
As shown in Figure 4-Figure 7, strainer 1 is equipped with 2 line slide rails 1, and 2 line slide rails 1 are parallel
It is mounted on the worktable panel of the rack 4；2 sliding blocks 1 are fitted on the every line slide rail 1,4
7,2 sliding blocks 1 of bottom plate are fixedly mounted by soket head cap screw in the top of a sliding block 1 can be in 2 line slide rails
One 18 move in parallel, so that mounting base 7 be driven to move, and then carry out a series of movement.Grating scale is also equipped on bottom plate 7
Backing plate 10, there are two grating scales 11 that reality may be implemented for the stroke measurment of testing fatigue test for setting on grating scale backing plate 10
When test stretching displacement, overcome in the prior art drag-line fatigue testing equipment using pneumatic linear actuator as inhaul cable operating effect test
Stretching executing agency, there are stretching travel be difficult to control technical problem, and then reach precisely monitoring and control stretch
The purpose of stroke.It is 100mm that a kind of drag-line fatigue testing equipment of the present invention, which stretches end stroke measurment range, and fixing end stroke is surveyed aobvious
Range is 100mm, and stroke measurment precision is ± 0.01mm.
One 18 middle position of line slide rail of two parallel arrangements is disposed with front-end bearing pedestal 22 and rear bearing block 26, before described
Screw rod 23 is installed, screw rod converts rotational motion into linear motion, institute in the bearing hole of bearing block 22 and the rear bearing block 26
The left end installation handwheel 21 of screw rod 23 is stated, is coupled feed screw nut pair 1, the feed screw nut pair one on the screw rod 23
24 are bolted on the bottom of the bottom plate 7, i.e., can be by driving the left and right of pair of nut 1 flat when screw rod 23 acts
Row movement so that mounting base 7 be driven to move, and then carries out a series of movement.Spring fixed seat is installed in left end on bottom plate 7
25, snap clasp 1 is coupled on the right side of the spring fixed seat 25；The screw-internal thread fit of the spring fixed seat 25 is locked
The male end of snap clasp 1 arranges snap clasp two with the other end of the spring fixed seat 25 in the same horizontal line
28, spring 13 is installed between the snap clasp 1 and the snap clasp 2 28.
It is 2000N that the specific technical parameter of strainer 1, which stretches end maximum test force, and fixing end is strainer 1, maximum
Test force is 1000N, and pilot strength measurement precision is ± 1%.
When carrying out drag-line life test, manual operation handwheel 21 rotates handwheel 21, and driving screw rod 23 rotates, so that bottom plate 7
Stop after moving suitable distance with feed screw nut pair 1；6.1.3 item provides in QC/T2281997 according to national standards, surveys
Drag-line to be tested should be axially stretched along end is stretched with the speed no more than 10mm/s when examination.
The top of bottom plate 72 roller bearings 15 of symmetrical parallel arrangement, the both ends of the roller bearing 15 are separately installed with roller shaft seat 1
With roller shaft seat 2 16；Roller bearing sliding block 17 is installed, 17 middle position of roller bearing sliding block is logical above two parallel roller bearings 15
Cross threaded connection snap clasp 2 28；Force snesor 1 is fixed by connector 29 in the other end of the roller bearing sliding block 17,
Force signal can be changed into electric signal output by force snesor 1, and the measured value of force snesor 1 is described in 0~100kg
The right side of force snesor 1 is installed by drag-line mounting base 31.
As shown in Figure 8, Figure 9, drag-line curve builder 2 passes through drag-line fixing seat 1, drag-line fixing seat 2 34, drag-line
Fixing seat 3 36 and drag-line fixing seat 4 37 are fixed on the workbench of the rack 4；The drag-line curve builder 2 includes
Preceding brake cable 32 and rear brake cable 35.When carrying out drag-line life test, pass through drag-line fixing seat 1, drag-line fixing seat two
34, drag-line fixing seat 3 36 and 4 37 constituent curve of drag-line fixing seat form component, and preceding brake cable 32 is manually placed in drawing
In rope fixing seat 1, drag-line fixing seat 2 34, drag-line fixing seat 3 36 and drag-line fixing seat 4 37, while by preceding brake cable
32 and rear brake cable 35 it is fixed so that drag-line be coiled into test needed for curve；Needs can be applied to drag-line by pre-tightening Force system
Initial force value, driving motor drive drag-line core wire to move reciprocatingly by deceleration mechanism, and the amplitude of reciprocating motion is by speed reducer
Sliding block adjust.
As shown in Figure 10-Figure 16, CYCLIC LOADING mechanism 3 includes pedestal 41, and the CYCLIC LOADING mechanism 3 passes through bolt for institute
It is fixed on the table to state pedestal 41；2 line slide rails 2 40 symmetrically and are in parallel installed, the every straight line is sliding on pedestal 41
It is coupled 2 sliding blocks 2 39 on rail 2 40, is fixed in the internal screw thread of symmetrical 4 sliding blocks 2 39 by hexagon socket head cap screw
Speed regulating motor workbench 38 is installed, speed regulating motor 42 is installed on the speed regulating motor workbench 38, the speed regulating motor 42 includes
Motor and speed reducer；Using the revolving speed of Frequency Converter Control speed regulating motor 42, the transformation of different tests frequency can be met, frequency converter is logical
Change motor frequency mode of working power supply is crossed to control ac motor, frequency converter mainly by rectify (AC to DC), filtering,
The compositions such as inversion (direct current becomes exchange), brake unit, driving unit, detection unit microprocessing unit.Frequency converter IGBT close to the inner portion
Cut-off to adjust the voltage of out-put supply and frequency, supply voltage required for providing it according to the actual needs of motor,
And then achieve the purpose that energy conservation, speed regulation, in addition, there are also many defencive functions, such as overcurrent, over-voltage, overload protection for frequency converter.
Test number (TN) is by counter measures and shows, reading is intuitive, also has power-failure memory function.
The shaft end of speed regulating motor 42 passes through keyway setting-up eccentricity wheel 43, the 43 symmetrical machining two rows kidney slot of eccentric wheel
Hole, the eccentric wheel 43 are bolted eccentric slide plate 44；Eccentric 44 shape of slide plate is that a flanged plate one end is processed as circular shaft,
Needle bearing is installed in circular shaft end, while connecting rod 3 59 being installed in the outer ring of the needle bearing, the connecting rod 3 59
By interference fit installing connecting rods 2 58 in the inner hole of the other end, the other end of the connecting rod 2 58 is mounted on the interior of connecting rod 1
Kong Zhong plays the role of connection；When carrying out drag-line test, speed regulating motor 42 drives drag-line core wire to move reciprocatingly, and moves back and forth
Amplitude adjusted by the kidney slot of eccentric slide plate 44.
The left end of connecting rod 1 is provided with attachment base 53, and the 53 workpiece shape of attachment base is that intermediate milling is flat, and both ends have
Ear end face, the inner hole interference fit installation pin shaft 67 of the 53 ear end face of attachment base, the pin shaft 67 and the connecting rod one
Deep groove ball bearing 68 is installed between 57 inner hole, it is axial that axially position is carried out to it using circlip for hole；The attachment base
53 have been bolted guide shaft sliding block 47, and 47 both ends of guide shaft sliding block are mounted on guide shaft 52,47 edge of guide shaft sliding block
52 guiding movement of guide shaft described in both ends；Power is fixedly mounted by force snesor link block 56 in the other end of the guide shaft sliding block 47
Force signal can be changed into electric signal output by sensor 2 55, force snesor 2 55, the measured value of force snesor 2 55 0~
Drag-line stay hook 54 is fixedly mounted in 100kg, 2 55 other end of force snesor.
When carrying out drag-line life test, start servo motor 66, by the connection of shaft coupling 65, ball screw 63 is rotated,
Ball screw converts rotational motion into linear motion, so that connect by feed screw nut pair 2 62 with ball screw 63
Motor workbench 38 is moved to front end designated position along line slide rail 2 40；Then, start speed regulating motor 42, so that solid
The eccentric wheel 43 for being scheduled on shaft end rotates, and by the connection of connecting rod 1, connecting rod 2 58, connecting rod 3 59, drives 47 edge of guide shaft sliding block
Two the drag-line that moves back and forth, therefore be fixed on drag-line stay hook 54 of guide shaft 52 also with moving back and forth.If
The movement speed for determining servo motor 66 is less than 10mm/s, the 66 certain stroke of every movement of servo motor, and servo motor 66 stops, and adjusts
Speed motor 42 is again started up, so that the eccentric wheel 43 for being fixed on shaft end rotates, passes through connecting rod 1, connecting rod 2 58, connecting rod 3 59
Connection, driving guide shaft sliding block 47 move back and forth along the guide shaft 52 of two sides；The drag-line being fixed on drag-line stay hook 54
Also with moving back and forth, so act until speed regulating motor workbench 38 is moved to right side, 66 stopping of servo motor movement.
A kind of test method based on drag-line fatigue testing equipment, includes the following steps:
(a) check that preceding brake cable 32 without security risk, is manually placed in drag-line fixing seat 1, drag-line by equipment periphery
In fixing seat 2 34, drag-line fixing seat 3 36 and drag-line fixing seat 4 37, while by preceding brake cable 32 and rear brake cable 35
It is fixed, so that drag-line is coiled into the required curve of test；
(b) one end of drag-line to be tested is fixed in the drag-line mounting base 31 in strainer 1, drag-line to be tested it is another
It holds on the drag-line stay hook 54 being fixedly mounted in CYCLIC LOADING mechanism 3；
(c) manual operation handwheel 21 rotates handwheel 21, and driving screw rod 23 rotates, so that bottom plate 7 is with feed screw nut pair one
Stop after 24 mobile suitable distances；6.1.3 item provides in QC/T2281997 according to national standards, and when test, drag-line to be tested was answered
It is axially stretched along end is stretched with the speed no more than 10mm/s；
(d) start servo motor 66, by the connection of shaft coupling 65, ball screw 63 is rotated, and ball screw transports rotation
Turn is changed to linear motion so that the motor workbench 38 being connect with ball screw 63 by feed screw nut pair 2 62 along
Line slide rail 2 40 is moved to front end designated position；
(e) start speed regulating motor 42, so that the eccentric wheel 43 for being fixed on shaft end rotates, pass through connecting rod 1, connecting rod
2 58, the connection of connecting rod 3 59, driving guide shaft sliding block 47 moves back and forth along the guide shaft 52 of two sides, therefore is fixed on drag-line
Drag-line on stay hook 54 is also with moving back and forth；Fatigue tests can be carried out to two drag-lines simultaneously, test load just
Initial value is measured by the force snesor 1 and force snesor 2 55 at both ends, can using the revolving speed of Frequency Converter Control speed regulating motor 42
Meet the transformation of different tests frequency；Test number (TN) is by counter measures and shows, reading is intuitive, also has power-failure memory function
Energy；Speed regulating motor 42 drives drag-line core wire to move reciprocatingly, and the amplitude of reciprocating motion is adjusted by the kidney slot of eccentric slide plate 44；
(f) movement speed of servo motor 66 is set as less than 10mm/s, the 66 certain stroke of every movement of servo motor, servo
Motor 66 stops, and speed regulating motor 42 is again started up, so that the eccentric wheel 43 for being fixed on shaft end rotates, passes through connecting rod 1, connecting rod
2 58, the connection of connecting rod 3 59, driving guide shaft sliding block 47 move back and forth along the guide shaft 52 of two sides；Drag-line is fixed on to fix
Drag-line on hook 54 is so acted also with moving back and forth until speed regulating motor workbench 38 is moved to right side, servo electricity
66 stopping of machine movement.
Although the illustrative specific embodiment of the present invention is described above, in order to the technology of the art
Personnel are it will be appreciated that the present invention, but the present invention is not limited only to the range of specific embodiment, to the common skill of the art
For art personnel, as long as long as various change the attached claims limit and determine spirit and scope of the invention in, one
The innovation and creation using present inventive concept are cut in the column of protection.
Claims (1)
1. a kind of test method based on drag-line fatigue testing equipment, includes the following steps:
(a) check that preceding brake cable (32) without security risk, is manually placed in drag-line fixing seat one (33), drag-line by equipment periphery
In fixing seat two (34), drag-line fixing seat three (36) and drag-line fixing seat four (37), while by preceding brake cable (32) and rear system
Dynamic drag-line (35) are fixed, so that drag-line is coiled into the required curve of test；
(b) one end of drag-line to be tested is fixed in the drag-line mounting base (31) in strainer (1), drag-line to be tested it is another
It holds on the drag-line stay hook (54) being fixedly mounted in CYCLIC LOADING mechanism (3)；
(c) manual operation handwheel (21) rotate handwheel (21), driving screw rod (23) rotation, so that bottom plate (7) is with feed screw nut
Stop after the secondary mobile suitable distance in one (24)；6.1.3 item provides in QC/T2281997 according to national standards, and when test is to be tested
Drag-line should be axially stretched along end is stretched with the speed no more than 10mm/s；
(d) start servo motor (66), by the connection of shaft coupling (65), ball screw (63) rotation, ball screw will rotate
Movement is converted to linear motion, so that the motor workbench being connect by feed screw nut pair two (62) with ball screw (63)
(38) front end designated position is moved to along line slide rail two (40)；
(e) start speed regulating motor (42), so that being fixed on eccentric wheel (43) rotation of shaft end, by connecting rod one (57), even
The connection of bar two (58), connecting rod three (59), driving guide shaft sliding block (47) move back and forth along the guide shaft (52) of two sides, therefore
The drag-line being fixed on drag-line stay hook (54) is also with moving back and forth；Fatigue test can be carried out to two drag-lines simultaneously,
The initial value of test load is measured by the force snesor one (30) and force snesor two (55) at both ends, is adjusted the speed using Frequency Converter Control
The revolving speed of motor (42), can meet the transformation of different tests frequency；Test number (TN) is by counter measures and shows, reading is intuitive,
Also have power-failure memory function；Speed regulating motor (42) drives drag-line core wire to move reciprocatingly, and the amplitude of reciprocating motion is sliding by bias
The kidney slot of plate (44) adjusts；
(f) movement speed of servo motor (66) is set as less than 10mm/s, the certain stroke of servo motor (66) every movement, servo
Motor (66) stops, and speed regulating motor (42) is again started up, so that being fixed on eccentric wheel (43) rotation of shaft end, passes through connecting rod one
(57), the connection of connecting rod two (58), connecting rod three (59), driving guide shaft sliding block (47) are back and forth transported along the guide shaft (52) of two sides
It is dynamic；The drag-line being fixed on drag-line stay hook (54) is also with moving back and forth, and so movement is until speed regulating motor workbench
(38) right side, servo motor (66) stopping movement being moved to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811235271.XA CN109187244A (en) | 2018-10-23 | 2018-10-23 | A kind of test method based on drag-line fatigue testing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811235271.XA CN109187244A (en) | 2018-10-23 | 2018-10-23 | A kind of test method based on drag-line fatigue testing equipment |
Publications (1)
| Publication Number | Publication Date |
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| CN109187244A true CN109187244A (en) | 2019-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811235271.XA Withdrawn CN109187244A (en) | 2018-10-23 | 2018-10-23 | A kind of test method based on drag-line fatigue testing equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067445A (en) * | 2020-09-15 | 2020-12-11 | 上海声佳汽车零部件有限公司 | Three-section type pressure pipe assembly comprehensive detection machine and detection method |
| CN115184003A (en) * | 2022-09-08 | 2022-10-14 | 山东嘉通专用汽车制造有限公司 | Automobile inhaul cable detection machine |
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| JPH10338109A (en) * | 1997-06-10 | 1998-12-22 | Suzuki Motor Corp | Parking brake for vehicle |
| CN101769822A (en) * | 2010-03-05 | 2010-07-07 | 五邑大学 | Motorcycle guy cable performance integration test system test bed |
| CN103983511A (en) * | 2014-04-23 | 2014-08-13 | 河海大学 | Stayed-cable fatigue testing machine |
| CN104034616A (en) * | 2014-05-29 | 2014-09-10 | 河海大学 | Electromagnetic type stay cable fatigue tester |
| CN105890667A (en) * | 2016-05-18 | 2016-08-24 | 苏州诚峰机电设备有限公司 | Automobile cable detecting machine |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10338109A (en) * | 1997-06-10 | 1998-12-22 | Suzuki Motor Corp | Parking brake for vehicle |
| CN101769822A (en) * | 2010-03-05 | 2010-07-07 | 五邑大学 | Motorcycle guy cable performance integration test system test bed |
| CN103983511A (en) * | 2014-04-23 | 2014-08-13 | 河海大学 | Stayed-cable fatigue testing machine |
| CN104034616A (en) * | 2014-05-29 | 2014-09-10 | 河海大学 | Electromagnetic type stay cable fatigue tester |
| CN105890667A (en) * | 2016-05-18 | 2016-08-24 | 苏州诚峰机电设备有限公司 | Automobile cable detecting machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067445A (en) * | 2020-09-15 | 2020-12-11 | 上海声佳汽车零部件有限公司 | Three-section type pressure pipe assembly comprehensive detection machine and detection method |
| CN112067445B (en) * | 2020-09-15 | 2024-06-04 | 上海声佳汽车零部件有限公司 | Three-section type pressure pipe assembly comprehensive detector |
| CN115184003A (en) * | 2022-09-08 | 2022-10-14 | 山东嘉通专用汽车制造有限公司 | Automobile inhaul cable detection machine |
| CN115184003B (en) * | 2022-09-08 | 2023-01-24 | 山东嘉通专用汽车制造有限公司 | Automobile inhaul cable detection machine |
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Application publication date: 20190111 |
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