CN109141735A - Crane wheel compression testing device and its test method - Google Patents
Crane wheel compression testing device and its test method Download PDFInfo
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- CN109141735A CN109141735A CN201811296548.XA CN201811296548A CN109141735A CN 109141735 A CN109141735 A CN 109141735A CN 201811296548 A CN201811296548 A CN 201811296548A CN 109141735 A CN109141735 A CN 109141735A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L17/00—Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to a kind of crane wheel compression testing device and its test methods, this crane wheel compression testing device tests the wheel load of each wheel, first the wheel spoke type sensor taken turns in compression testing device is demarcated with press machine, the pressure data of sensor and press machine is subjected to straight line fitting, the fit equation demarcated, and the response proportionality coefficient and intercept of acquisition device host computer are set with the fit equation of calibration, wheel load value can be directly read in the actual test to crane wheel load, and precision with higher, it can be quick, efficiently, accurately test the wheel load of each wheel, safety is higher, and can be avoided the measurement of guide rail injustice bring influences, to compensate for the shortage of existing wheel load test, with extensive promotional value.
Description
Technical field
The present invention relates to a kind of crane wheel compression testing device and its test methods, for measuring each wheel of crane
Pressure, to verify the overall weight of crane.
Background technique
Hoisting machinery is that the important material in modern integratelogistics is carried and equipment is installed in industry.Crane wheel load is lifting
The important parameter of machine, and examine the important measurement standard and harbour and industrial premises track base of crane overall weight
The important design considerations of plinth.It is more important when crane wheel load is to the safe operation of harbour for some older port and pier
Parameter.
The test method of crane wheel load mainly include the following types:
One, jack jack-block, this method are also the wheel load test method put forward earliest.Test philosophy is by sensor
It is placed on jack, the wheel then jacked up using the power of jack under supporting leg to the supporting leg of crane is all de-orbited, will
Weight of the numerical value of pressure sensor as the born crane of the supporting leg, finally divides the numerical value below the supporting leg equally
The wheel load of wheel the most each on wheel.This method present wheel load test in often used, but this method use thousand
Jin top and sensor are excessively heavy, and more people is needed to assist, inconvenient for operation, while needing to be additionally provided a hydraulic station, furthermore
The wheel load of the test is average value, can not accurately test the pressure of each wheel.
Two, track stain measuring technology, this method are by Nantong branch of Special Equipment Safety Supercision Inspection Institute of Jiangsu Province
It is proposed with granary branch, the test philosophy of this method is to paste strain transducer in orbit, when wheel is by pasting sensing
It will cause the deformation of track when the position of device, and then cause the variation of sensor voltage signal, by Acquisition Instrument by voltage signal
Switch to pressure value, and then obtains the wheel load of crane.This method is simple and practical, but when pair of strain sensors is initialized
Crane is less than actual wheel load in track, the wheel load for causing a part of gravity of crane artificially to be subtracted, and then surveyed,
And due to the continuity of track, when a wheel is in sensor position, neighbouring wheel also contributes the sensor,
Therefore institute's measuring car wheel is not the practical wheel load of the wheel.
Three, Barkhausen noise measuring wheel platen press, in outer magnetic field, magnetization reaches saturation to the test philosophy ferrous material of this method
During its material microstructure be it is discontinuous, when material stress field occur micro-variations when, the magnetic domain edge of material
Externally-applied magnetic field action direction occurs 90 ° or 180 ° and inverts or make magnetic domain wall moving, and adjacent two magnetic domains reversion is rubbing against one another
And vibrate, vibration and electromagnetic noise will be generated, by analyzing the gloomy noise of Bark milli, material surface can be obtained
With the material properties such as internal microstructure and stress state.This method precision is high, and detection speed is fast, but test data is by quilt
Measure the surface roughness of component, scale thickness, excitation field intensity, the frequency of pumping signal of selection, materials chemistry at
Point, metallographic structure, heat treatment and the influence that process is cold worked, measurement result is inaccurate.
Three of the above test method all has that measurement result is inaccurate, and when guide rail is not flat, measurement knot
Fruit error is bigger, and traditional test method also has some potential safety problems, thus is badly in need of a kind of safe and reliable test
Method occurs.
Summary of the invention
In order to solve the technical problems in background technology, the present invention provide a kind of crane wheel compression testing device and its
Test method, it can conveniently and efficiently complete the wheel load test of crane, and time saving and energy saving, avoid carrying heavier set
Standby, measurement result is accurate, avoids influence of the other factors to test result.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of crane wheel compression testing device, it includes wheel cushion block, and wheel cushion block front end is inclined-plane, the wheel cushion block
Intermediate aperture and be set as sensor rest area, be provided with wheel spoke type sensor, wheel spoke type sensor in the sensor rest area
It is connected with acquisition device, acquisition device is connected with host computer, and wheel cushion block is supporting region in the surface of wheel spoke type sensor,
And lifting motor spindle has multiple wheels, wheel is erected on two tracks that the left and right sides is arranged, and on two tracks respectively
It is passed after wheel at the uniform velocity passes through wheel compression testing device one by one by the spoke type under supporting region equipped with a wheel compression testing device
Sensor obtains pressure value.
A kind of test method of crane wheel compression testing device, after first pasting foil gauge on wheel spoke type sensor, by pressing
It is demarcated on power machine, the pressure data of press machine and sensor is subjected to straight line fitting, the equation being fitted, acquisition device
Host computer on the proportionality coefficient and intercept of response are set according to the fit equation of calibration, then wheel spoke type sensor is put into biography
In sensor rest area, the wheel load value of crane just can be directly read in actual test, wheel pressure sensor is then placed on lifting
On machine track, one end abuts track and wheel contact position, and then host computer starts to collect and record the number of wheel spoke type sensor
According to, while crane wheel at the uniform velocity drives towards sensor, and wheel is made to cross the supporting region of sensor, last host computer stops recording,
And crane wheel is driven off into sensor, it is the wheel of the single wheel of crane in this press process selection Pressure maximum value
Pressure calculates the gross weight of crane after being added the wheel load of all wheels.
Beneficial effects of the present invention:
This crane wheel compression testing device tests the wheel load of each wheel, will first take turns the wheel in compression testing device
Spoke sensor is demarcated with press machine, and the pressure data of sensor and press machine is carried out straight line fitting, is demarcated
Fit equation, and the response proportionality coefficient and intercept of acquisition device host computer are set with the fit equation of calibration, to lifting
Wheel load value, and precision with higher can be directly read when the actual test of wheel pressure, can quickly, accurately and accurately be surveyed
The wheel load of each wheel is tried, safety is higher, and can be avoided the measurement influence of guide rail injustice bring, to compensate for existing
The shortage of wheel load test, has extensive promotional value.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the schematic diagram of crane wheel compression testing device of the present invention.
Fig. 2 is the schematic diagram of wheel cushion block in Fig. 1.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is the straight line fitting figure of two pressure datas of press machine and wheel spoke type sensor.
Fig. 5 is the 1st, 3,5, the pressure time-process figures of 7 wheels in 32 wheel crane left side wheels.
Fig. 6 is the 9th, 11,13, the pressure time-process figures of 15 wheels in 32 wheel crane left side wheels.
Fig. 7 is the 1st, 3,5, the pressure time-process figures of 7 wheels in 32 wheel crane right side wheels.
Fig. 8 is the 9th, 11,13, the pressure time-process figures of 15 wheels in 32 wheel crane right side wheels.
In figure: wheel cushion block 1, inclined-plane 2, sensor rest area 3, wheel spoke type sensor 4, supporting region 5, track 6, wheel 7,
Articulated shaft 8.
Specific embodiment
Below in conjunction with attached drawing, the present invention is described in further detail.
Referring to Fig. 1 to Fig. 3, the present invention relates to a kind of crane wheel compression testing device and its test methods, and wherein wheel load is surveyed
Trial assembly is set including wheel cushion block 1, which is the elastomer made of 42CrMo steel, chrome-molybdenum steel surrender with higher
Intensity, tensile strength and fatigue strength, there are also enough plasticity and toughness, the generally rectangular elastomer of wheel cushion block 1, elasticity
The height of body is lower, and the wheel of crane is on the one hand enable easily to run on elastomer, on the other hand makes sensor height
Degree is unlikely to that crane is allowed to be integrated with biggish change；Elastomer will be able to bear biggish pressure, for major port harbour
For crane, average wheel load is about 25T, it is contemplated that the impact in safety coefficient and operational process, the range of sensor is extremely
It is less 40T.
1 front end of wheel cushion block is inclined-plane 2, so that the wheel of crane be facilitated to slide into the carrying of 1 top center of wheel cushion block
In area 5, the intermediate aperture of the wheel cushion block 1 is simultaneously set as sensor rest area 3, is provided with spoke in the sensor rest area 3
Formula sensor 4, wheel spoke type sensor 4 are connected with acquisition device, and acquisition device is connected with host computer, and wheel cushion block 1 is in spoke type
The surface of sensor 4 is supporting region 5, and pressure wheel can measure pressure by wheel spoke type sensor 4 on supporting region 5,
And lifting motor spindle has multiple wheels 7, two neighboring wheel 7 is hinged by articulated shaft 8, and the wheel 7 of crane is set up
On two tracks 6 of left and right sides setting, and a wheel compression testing device is respectively equipped on two tracks 6, wheel load test
The width of device and track 6 are of same size, after wheel 7 at the uniform velocity passes through wheel compression testing device one by one, by the wheel under supporting region 5
Spoke sensor 4 obtains wheel load value.
The test method of this crane wheel compression testing device are as follows:
After wherein pasting foil gauge on wheel spoke type sensor 4, sensor rest area 3 is placed by carrying out calibration on press machine
In, it wherein stays for some time for every 3 tons of press machine, and write down the reading of sensor, straight line is carried out according to the pressure data of the two
Fitting, as shown in figure 4, the equation of fitting is y=103.88x+2.2158, by demarcating, according to mark on the host computer of Acquisition Instrument
Fixed fit equation is arranged the proportionality coefficient and intercept of response, and the wheel load value of crane can be directly read in actual test.
It being now specifically selected from and weighs about the crane for a kiloton as test object, it shares 32 wheels, wherein
Together, i.e., there are eight groups of hinged wheels in two sides to every two adjacent wheel articulation respectively.Before testing, spoke type is passed first
Sensor is connected with acquisition equipment, and sets relevant parameter in the host computer of acquisition equipment, and then wheel pressure sensor is placed on
On crane runway, one end abuts track and wheel contact position, and then host computer starts to collect and record wheel spoke type sensor
Data, while crane wheel at the uniform velocity drives towards sensor, and wheel is made to cross the supporting region of sensor, and last host computer stops note
Record, and crane wheel is driven off into sensor, since wheel is more, interval, which picks up the car to take turns, is used as measurement object, two to be hinged
The wheel load of wheel is almost the same, that is, the wheel being hinged only chooses the wheel measurement wheel load of front one, and the test left and right sides is total altogether
The wheel load of totally ten six wheels, as viewed in figures 5-8, wherein 1-8 wheel is a left side to the pressure time-process figure of each wheel in entire test process
Side wheel, 9-16 wheel are right side wheels.And by the pressure time-process figure of each wheel it is found that crane pressure in orbit not
Be uniformly it is constant, with the rotation of crane wheel, wheel to the pressure of track be vibration, this press process select press
Power maximum value is the wheel load of the single wheel of crane, and this makes it possible to obtain the wheel load of each wheel is as shown in table 1 below.
Table 1
| Wheel number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Wheel load (ton) | 30.9 | 28.4 | 26.2 | 28.8 | 29.4 | 31.7 | 32.1 | 33.0 |
| Wheel number | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| Wheel load (ton) | 34.7 | 33.2 | 35.7 | 33.6 | 33.5 | 34.1 | 32.6 | 30.6 |
It is assumed that the wheel load for two wheels being hinged is equal, the wheel load that 16 wheels are calculated is 508.5 tons, is calculated
The gross weight of crane is 1017 tons out, is as a result consistent with crane self weight plus the weight after the devices such as motor, hoist engine.
Furthermore the wheel load branch of each wheel of crane is more balanced, and the average wheel load of side is 30.1 tons, other side
Average wheel load be 33.5 tons, the wheel wheel load of side is larger in general, the analysis found that, be because crane motor,
The driving mechanisms such as hoist engine are arranged in the biggish side of wheel load, therefore two sides wheel is caused to be pressed with a certain distance.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (7)
1. a kind of crane wheel compression testing device, it is characterised in that: it includes wheel cushion block (1), and wheel cushion block (1) front end is oblique
Face (2), the intermediate aperture of the wheel cushion block (1) are simultaneously set as sensor rest area (3), setting in the sensor rest area (3)
Have wheel spoke type sensor (4), wheel spoke type sensor (4) is connected with acquisition device, and acquisition device is connected with host computer, wheel cushion block
It (1) is supporting region (5) in the surface of wheel spoke type sensor (4), and lifting motor spindle has multiple wheels (7), wheel (7) frame
It is located on two tracks (6) that the left and right sides is arranged, and is respectively equipped with a wheel compression testing device on two tracks (6), when
After wheel (7) at the uniform velocity passes through wheel compression testing device one by one, pressure value is obtained by the wheel spoke type sensor (4) under supporting region (5).
2. a kind of crane wheel compression testing device according to claim 1, it is characterised in that: wheel spoke type sensor (4)
Range is at least 40T.
3. a kind of crane wheel compression testing device according to claim 1, it is characterised in that: wheel cushion block (1) be by
Elastomer made of 42CrMo steel, and be in rectangle.
4. a kind of crane wheel compression testing device according to claim 1, it is characterised in that: take turns the width of compression testing device
It is of same size with track (6).
5. a kind of crane wheel compression testing device according to claim 1, it is characterised in that: two neighboring wheel (7) is logical
It is hinged to cross articulated shaft (8).
6. a kind of test method of crane wheel compression testing device according to claim 1, it is characterised in that: first by spoke
After pasting foil gauge on formula sensor, by being demarcated on press machine, the pressure data of press machine and sensor is subjected to straight line
It is fitted, the equation being fitted, the proportionality coefficient of response is set on the host computer of acquisition device according to the fit equation of calibration
And intercept, then wheel spoke type sensor is put into sensor rest area, the wheel of crane just can be directly read in actual test
Pressure value is then placed on wheel pressure sensor on crane runway, and one end abuts track and wheel contact position, and then host computer is opened
Beginning collects and records the data of wheel spoke type sensor, while crane wheel at the uniform velocity drives towards sensor, and wheel is made to cross sensor
Supporting region, last host computer stops recording, and crane wheel is driven off sensor, maximum in this press process selection pressure
Value is the wheel load of the single wheel of crane, and the gross weight of crane is calculated after the wheel load of all wheels is added.
7. a kind of test method of crane wheel compression testing device according to claim 1, it is characterised in that: the side of fitting
Journey is y=103.88x+2.2158.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811296548.XA CN109141735A (en) | 2018-11-01 | 2018-11-01 | Crane wheel compression testing device and its test method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811296548.XA CN109141735A (en) | 2018-11-01 | 2018-11-01 | Crane wheel compression testing device and its test method |
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| CN109141735A true CN109141735A (en) | 2019-01-04 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196599A (en) * | 2013-03-19 | 2013-07-10 | 西北大学 | System and method for monitoring soil body inner stress variation of loess field under soaking condition |
| CN104048820A (en) * | 2014-06-19 | 2014-09-17 | 湖南高速铁路职业技术学院 | Railroad sleeper detection data acquisition device and system |
| CN105547537A (en) * | 2015-11-10 | 2016-05-04 | 广州特种机电设备检测研究院 | Crane machinery equipment wheel pressure measurement sensor structure |
| CN106829743A (en) * | 2017-04-05 | 2017-06-13 | 江苏省特种设备安全监督检验研究院 | It is anti-to cross formula crane wheel compression testing device |
| CN208795405U (en) * | 2018-11-01 | 2019-04-26 | 江苏省特种设备安全监督检验研究院 | Crane wheel compression testing device |
-
2018
- 2018-11-01 CN CN201811296548.XA patent/CN109141735A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196599A (en) * | 2013-03-19 | 2013-07-10 | 西北大学 | System and method for monitoring soil body inner stress variation of loess field under soaking condition |
| CN104048820A (en) * | 2014-06-19 | 2014-09-17 | 湖南高速铁路职业技术学院 | Railroad sleeper detection data acquisition device and system |
| CN105547537A (en) * | 2015-11-10 | 2016-05-04 | 广州特种机电设备检测研究院 | Crane machinery equipment wheel pressure measurement sensor structure |
| CN106829743A (en) * | 2017-04-05 | 2017-06-13 | 江苏省特种设备安全监督检验研究院 | It is anti-to cross formula crane wheel compression testing device |
| CN208795405U (en) * | 2018-11-01 | 2019-04-26 | 江苏省特种设备安全监督检验研究院 | Crane wheel compression testing device |
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