CN208795405U - Crane wheel compression testing device - Google Patents
Crane wheel compression testing device Download PDFInfo
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- CN208795405U CN208795405U CN201821805059.8U CN201821805059U CN208795405U CN 208795405 U CN208795405 U CN 208795405U CN 201821805059 U CN201821805059 U CN 201821805059U CN 208795405 U CN208795405 U CN 208795405U
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- wheel
- crane
- compression testing
- testing device
- sensor
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Abstract
The utility model relates to a kind of crane wheel compression testing devices, 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 utility model relates to a kind of crane wheel compression testing devices, for measuring each wheel load of crane, to examine
Test out 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, 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.
Utility model content
In order to solve the technical problems in background technology, the utility model provides a kind of crane wheel load test dress
It sets, it can conveniently and efficiently complete the wheel load test of crane, and time saving and energy saving, avoid carrying heavier equipment, measure
As a result accurate, avoid influence of the other factors to test result.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
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.
The range of wheel spoke type sensor is at least 40T.
Wheel cushion block is the elastomer made of 42CrMo steel, and is in rectangle.
The width for taking turns compression testing device is identical as track width.
Two neighboring wheel is hinged by articulated shaft
The utility model has the beneficial effects that
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
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the schematic diagram of the utility model crane wheel compression testing device.
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
The utility model is described in further detail below in conjunction with attached drawing.
Referring to Fig. 1 to Fig. 3, the utility model relates to a kind of crane wheel compression testing devices, wherein wheel compression testing device packet
Wheel cushion block 1 is included, which is the elastomer made of 42CrMo steel, chrome-molybdenum steel yield strength with higher, tension
Intensity and fatigue strength, there are also enough plasticity and toughness, the generally rectangular elastomer of wheel cushion block 1, the height of elastomer
It is lower, so that the wheel of crane is easily run on elastomer, is on the other hand unlikely to sensor height
Crane is allowed to be integrated with biggish change；Elastomer will be able to bear biggish pressure, for major port wharf crane
Speech, average wheel load are about 25T, it is contemplated that the range of the impact in safety coefficient and operational process, sensor is at least 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 simultaneously
Be not uniformly it is constant, with the rotation of crane wheel, wheel to the pressure of track be vibration, this press process select
Pressure 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.
It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model
Member can carry out various changes and amendments in the range of without departing from this item utility model technical idea completely.This item is real
It is not limited to the contents of the specification with novel technical scope, it is necessary to its technology is determined according to scope of the claims
Property range.
Claims (5)
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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821805059.8U CN208795405U (en) | 2018-11-01 | 2018-11-01 | Crane wheel compression testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821805059.8U CN208795405U (en) | 2018-11-01 | 2018-11-01 | Crane wheel compression testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208795405U true CN208795405U (en) | 2019-04-26 |
Family
ID=66212475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821805059.8U Expired - Fee Related CN208795405U (en) | 2018-11-01 | 2018-11-01 | Crane wheel compression testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208795405U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109141735A (en) * | 2018-11-01 | 2019-01-04 | 江苏省特种设备安全监督检验研究院 | Crane wheel compression testing device and its test method |
-
2018
- 2018-11-01 CN CN201821805059.8U patent/CN208795405U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109141735A (en) * | 2018-11-01 | 2019-01-04 | 江苏省特种设备安全监督检验研究院 | Crane wheel compression testing device and its test method |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190426 Termination date: 20191101 |
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| CF01 | Termination of patent right due to non-payment of annual fee |