CN107188044A - A kind of craning weight of same is weighed and overload protective device - Google Patents
A kind of craning weight of same is weighed and overload protective device Download PDFInfo
- Publication number
- CN107188044A CN107188044A CN201710541588.5A CN201710541588A CN107188044A CN 107188044 A CN107188044 A CN 107188044A CN 201710541588 A CN201710541588 A CN 201710541588A CN 107188044 A CN107188044 A CN 107188044A
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- China
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- axletree
- data
- weighed
- angle position
- foil gauge
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
- B66C15/06—Arrangements or use of warning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
Weighed the present invention relates to a kind of craning weight of same and overload protective device, it includes foil gauge wheel pressure sensor, axletree angle position identification sensor, data acquisition storage and analysis chip, lifting capacity display, alarm device and overloading control device etc..The signal detected is sent to data collection and analysis chip and carries out data processing by foil gauge wheel pressure sensor and axletree angle position identification sensor, the lifting capacity tried to achieve is shown in display at any time, overload i.e. cut-out motor power supply is run into, alarms and stops lifting, then lift heavy is put down.Change of the present invention by comparing wheel load draws lifting capacity data; pass through periodic calibrating; measure each wheel wheel load value; wheel load sum is not by dolly deformation effect; lift heavy weighing precision is higher; there is alarm, drive device to power off and stop hoisting function overload signal simultaneously, overload protection is played to elevating mechanism or equipment and lift heavy is weighed and stored record function.
Description
Technical field
Weighed the present invention relates to a kind of craning weight of same and overload protective device, including the weight with the weighing function or people
Lifting means and using the weighing function crane hoisting mechanism.
Background technology
Crane hoisting mechanism and other lifting means have defined rated load weight, and lifting cargo quality does not allow typically
More than rated load weight, this, which is accomplished by setting, prevents the safety device of overload, i.e. lift heavy Weighing control device.Lift heavy is weighed
Control device refers to that the device is capable of detecting when the quality of hoisting heavy, when hoisting heavy when lifting means hoisting heavy
When quality exceedes rated load weight, the device can make electric motor circuit breaking, stop lifting, then put down goods, can make lifting
Machine safety work in the state of nonoverload is kept.
The Weighing control device of existing application mainly has two kinds of forms.
One is that weighing sensor is arranged on below reel bearing spider, the reel bearing spider branch of such as bridge crane
Reel and hoisting heavy are propped up, when loading weight, the weighing sensor below reel bearing spider can measure load change
Change.This method has mainly transferred load to simply supported beam weighing sensor by reel bearing spider stand under load, by measuring letter
Strutbeam bending strain obtains the quality of hoisting heavy.But the accumulation of the increase and time with hoisting heavy number of times, freely-supported
Beam stand under load is easily permanently deformed, and this deformation is also influenceed by lifting mechanism frame distortion.In this case, it is simple
The lifting capacity data precision that strutbeam weighing sensor is measured is not high, and data credibility is poor, when data deviation is serious, it may occur however that
Overload accident.
Two be that shaft type weighing sensor is arranged on fixed pulley axis, and when hoisting heavy, the shaft type on fixed pulley axis claims
Quantity sensor stand under load, obtains the parameter of hoisting heavy weight, but this weighing mounting means is vibrated by lifting means is influenceed ratio
It is larger, cause precision not high.
Existing craning weight of same weighing technology focus on using hoisting drum support end simply supported beam weighing sensor or
Fixed pulley shaft type weighing sensor.But the freely-supported beam construction and shaft end support that the data source of these weighing sensors is relied on
Construction and theoretical model have different, and crane small cart frame stand under load deforms and hung the shadow for carrying vibration for these weighing sensors
Sound it is very notable, the lift heavy data precision obtained by weighing sensor is not high, and truth deviation is larger, in addition lose should
With value, and it is abandoned and uses, does not often also have the safeguard protection effect of preferable lifting means.
The content of the invention
Weighed it is an object of the invention to provide a kind of craning weight of same and overload protective device, be difficult to arrange to solve sensor
With crane can not precise hoisting heavy quality the problem of.
In order to improve the weighing precision of hoisting heavy, weighing and overload protective device scheme of the invention is as follows.
A kind of craning weight of same is weighed and antioverloading scheme, including axletree angle position identification sensor（3）, foil gauge
Take turns pressure sensor（4）, display（51）, alarm device（52）, premature beats（53）With the chip of data acquisition, storage and analysis
（55）Deng.Axletree angle position identification sensor（3）With foil gauge wheel pressure sensor（4）Detection signal be sent to data and adopt
Collection and analysis chip（55）Data processing is carried out, the lifting capacity tried to achieve is shown at any time, run into overload i.e. cut-out lifting driving
Power, alarm and stop lifting, then lift heavy is put down；Axletree angle position identification sensor（3）Installed in axletree or
On first order hinge end face, foil gauge wheel pressure sensor（4）On axletree or first order fulcrum hinge.The data are adopted
Collection, storage and analysis chip（55）With display（51）It is arranged in drivers' cab, is easy to driver observation to manipulate.The program has following
Several remarkable advantages：The angle that pressure and benchmark foil gauge first on measurement axletree are turned over, then by data acquisition with dividing
Analyse chip（55）The quality that data processing draws hoisting heavy is carried out, the foil gauge of foil gauge wheel pressure sensor is every 30 degree of stickups
One and uniformly it is covered with a circumference of axletree, thus can more accurately obtains the maximum pressure that wheel bearing is received, then
By demarcation during static test, obtained hoisting heavy quality can reject the alignment error of axle, external world's deformation and by track
The influence of radial load and vibration equipment caused by not parallel, therefore can accurately obtain hoisting heavy specific each moment
Qualitative data, contribute to the intellectuality of crane.
Compared with existing meausring apparatus, the easy arrangement and with very high precision of this device, and not by axletree by
The influence of deformation is carried, is conducive to popularizing.Secondly, there is provided alarm device（52）With overloading control device（53）, when going out
When existing hoisting heavy quality is more than the situation of rated load weight, lifting driving power can be cut off, alarms and stops lifting by crane, it is to avoid
Overload condition, improves the security of crane.Also, the lift heavy data of data storage record can be used as failure point
The foundation of analysis, life appraisal and like product design, is that the development of industry big data contributes.In addition, the system is applicable model
Enclose wide, can be used under any operating mode, strong interference immunity, stability is good, with stronger actual application value.It is described below
The carrying out practically situation of the system：When crane loading weight, foil gauge wheel pressure sensor（4）By each several part on axletree
Pressure signal transmission has given data collection and analysis chip（55）, axletree angle position identification sensor（3）Also should by benchmark
The angle signal that change piece is turned over has passed to data collection and analysis chip（55）, data collection and analysis chip（55）According to
To data can fast and accurately calculate the weight of raising weight, the moment is reflected in display（51）On.If hoisting heavy
Weight be more than rated load weight, alarm device（52）With overloading control device（53）It is switched off lifting driving power, alarms simultaneously
Stop lifting.
Foil gauge wheel pressure sensor as shown in Figure 3（4）Even numbered blocks foil gauge has been pasted on the circumference of axletree, has passed through car
Wheel shaft, which is pressurized, makes foil gauge resistance variations, passes the signal along in receiver, and receiver is carried out according to these signals received
Processing, obtains the pressure data on axletree, and pass to data collection and analysis chip（55）.If there is 0 situation, this
Group data are passed into disuse, and remind staff to check foil gauge.Which can avoid the influence of radial load, such as, axle
The foil gauge tension on top, the foil gauge at axle bottom is pressurized, and both can mutually compensate for, it is ensured that the precision of pressure detecting.
In order to illustrate that the system draws the detailed process of hoisting weight, spy is illustrated with calculating.
When crane starts hoisting heavy, foil gauge wheel pressure sensor (4) is arranged on axletree (2) and obtains certain moment
Detection signal be Fi, axletree angle position identification sensor (3) obtained at certain moment detection signal be θ i.According to physics
Calculate the specific data for obtaining maximum pressure.
θ=θi -30n
0≤θ ＜ 30
F=∑Fi/ cos θ-F0
θ is the calculated value of angle, θ in formulaiOn the basis of the angle that turns over of foil gauge, F is the changing value of the dolly wheel load（Crane
The weight of lift heavy）, unit is N, FiFor the measured value of wheel wheel load, unit is N, F0For the initial value of the dolly wheel load, unit
For N.
Data collection and analysis chip（55）According to above calculation specifications, to foil gauge wheel pressure sensor（3）And axletree
Angle position identification sensor（4）Obtained signal carries out data processing, obtains the related data of hoisting heavy quality.Can be by
Above-mentioned calculating process is compiled into program, and embedding data collection and analysis chip（55）In, the program can be according to obtained number
According to directly in display screen（51）The quality of upper display hoisting heavy.The embedded program of this computing chip is according to hoisting mechanism bullet
Property vibration principle, also worked out with remove elastic vibration influence function code, it is ensured that above-mentioned calculating is accurately and reliably.
Brief description of the drawings
Fig. 1 is the front view of trolley.（1）For car wheel,（2）For car wheel axle,（3）For axletree angle position
Put identification sensor,（4）For foil gauge wheel pressure sensor,（5）For the console of device.
Fig. 2 is the side view of trolley.（1）For car wheel,（3）For axletree angle position identification sensor.
Fig. 3 is foil gauge wheel pressure sensor and the mounting structure figure of axletree angle position identification sensor.（1）For dolly
Wheel,（2）For car wheel axle,（3）For axletree angle position identification sensor,（4）For foil gauge wheel pressure sensor.
Fig. 4 is crane hanging component weighing and the electric power schematic layout pattern of overload protective device.（51）For display,（52）For police
Report indicator lamp,（53）For overloading control device,（54）For device console switch,（55）For data acquisition, storage and analysis core
Piece.
Fig. 5 is lift heavy weighing and the workflow diagram of overload protective device.
Embodiment
In order to be able to more clearly understand the technology contents of the present invention, special weighed with craning weight of same is implemented with overload protective device
Exemplified by, embodiment is described in detail.
A kind of craning weight of same is weighed and antioverloading scheme, including axletree angle position identification sensor（3）, foil gauge
Take turns pressure sensor（4）, display（51）, alarm device（52）, overloading control device（53）With data acquisition, storage and analysis
Chip（55）Deng.Axletree angle position identification sensor（3）With foil gauge wheel pressure sensor（4）The signal detected is sent
Give data collection and analysis chip（55）Data processing is carried out, the lifting capacity tried to achieve is shown at any time, run into overload and cut off
Motor power supply, alarm and stop lifting；The foil gauge wheel pressure sensor（4）Need to be arranged on axletree (2) or first
On level fulcrum hinge, axletree angle position identification sensor（3）On axletree (2) or first order hinge end face.Institute
State data acquisition, storage and analysis chip（55）With display（51）It is arranged in drivers' cab, is easy to driver observation to manipulate.It is described
Foil gauge wheel pressure sensor（4）Need to be arranged on axletree (2) or first order fulcrum hinge, the uniform multiple spot on the circumference of axle
Arrangement.Foil gauge wheel pressure sensor（4）The firmness of installation has an impact to its measurement accuracy, so staff must allow
Detect foil gauge wheel pressure sensor（4）The firmness of installation.Axletree angle position identification sensor（3）Installed in car
On wheel shaft (2) or first order hinge end face, when benchmark foil gauge is located at upright position, axletree angle position is recognized and sensed
Device is returned to zero.
When crane carries out static test, the data calculated are demarcated.When electric motor operation hoisting heavy
When, foil gauge wheel pressure sensor（4）The pressure data measured can be transmitted to data collection and analysis chip in real time（55）Carry out
Processing, while axletree angle position identification sensor（3）The angle-data measured can be passed to data collection and analysis
Chip（55）Handled.Data collection and analysis chip (55) can quickly enter according to the pressure and the data of angle being collected into
Row calculating is handled, and the related data of the numerical value acquisition hoisting heavy quality of correlation calibration, and the lifting capacity tried to achieve is subject at any time
Display.If data collection and analysis chip（55）When obtaining being more than rated load weight on the quality of hoisting heavy, overload is believed
Number pass to alarm device（52）With overloading control device（53）, motor power supply is cut off immediately, is alarmed and stops lifting by crane.
Embodiment of the present invention is presented above, but the present invention is not limited to the embodiment of description.
Under the thinking that the present invention is provided, using by the way of being readily apparent that to those skilled in the art to the technology in above-described embodiment
Means enter line translation, replacement, modification, and play a part of with the present invention in relevant art means it is essentially identical, realize
Goal of the invention is essentially identical, and the technical scheme so formed is finely adjusted to be formed to examples detailed above, and this technical scheme is still
Fall under the scope of the present invention.
Claims (6)
1. a kind of craning weight of same is weighed and overload protective device, it includes foil gauge wheel pressure sensor, axletree angle position and known
Individual sensor, data acquisition, storage and analysis chip, lifting capacity display, overloading control device and alarm device etc., strain
The signal detected is sent to data collection and analysis chip by piece wheel pressure sensor and axletree angle position identification sensor
Data processing is carried out, the data conversion tried to achieve is shown in display at any time into lifting capacity, overload is run into and cuts off motor
Power supply, alarm and stop lifting, then lift heavy is put down；Foil gauge wheel pressure sensor is arranged on axletree or first order fulcrum is cut with scissors
On axle, axletree angle position identification sensor is arranged on axletree or first order hinge end face.
2. craning weight of same according to claim 1 is weighed and overload protective device, it is characterised in that foil gauge wheel load is sensed
Device is arranged on axletree or first order fulcrum hinge.
3. craning weight of same according to claim 1 is weighed and overload protective device, it is characterised in that axletree angle position
Identification sensor is arranged on axletree or first order hinge end face, and first order fulcrum hinge need not set angle position when not rotating
Put identification sensor.
4. craning weight of same according to claim 1 is weighed and overload protective device, it is characterised in that foil gauge wheel load is sensed
The signal detected is sent to data collection and analysis chip and carried out at data by device and axletree angle position identification sensor
Reason, the data conversion tried to achieve is shown at any time into lifting capacity.
5. craning weight of same according to claim 1 is weighed and overload protective device, it is characterised in that if alarm device and mistake
The quality for carrying the signal display hoisting heavy that control device is received is more than rated load weight, i.e. cut-out drives power, alarmed simultaneously
Stop lifting.
6. craning weight of same according to claim 1 is weighed and overload protective device, the lift heavy data of data storage record
The foundation that can be designed as accident analysis, life appraisal and like product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710541588.5A CN107188044A (en) | 2017-07-05 | 2017-07-05 | A kind of craning weight of same is weighed and overload protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710541588.5A CN107188044A (en) | 2017-07-05 | 2017-07-05 | A kind of craning weight of same is weighed and overload protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107188044A true CN107188044A (en) | 2017-09-22 |
Family
ID=59881399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710541588.5A Pending CN107188044A (en) | 2017-07-05 | 2017-07-05 | A kind of craning weight of same is weighed and overload protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107188044A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111392598A (en) * | 2020-04-22 | 2020-07-10 | 三一海洋重工有限公司 | Overload prevention device and method |
| CN112173977A (en) * | 2020-09-29 | 2021-01-05 | 闽江学院 | Hoisting structure for double-door crane |
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| JPS60122392A (en) * | 1983-12-07 | 1985-06-29 | 株式会社日立製作所 | Illumination mechanism |
| CN201580908U (en) * | 2009-12-10 | 2010-09-15 | 大连华锐股份有限公司 | Overload protecting system of crane lifting transmission chain |
| CN202124433U (en) * | 2011-05-16 | 2012-01-25 | 江苏申大衡器有限公司 | Weighing system of wireless data transmission intelligent crown block |
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| CN204399172U (en) * | 2015-02-11 | 2015-06-17 | 王伟义 | A kind of band is weighed the electric flat carriage of Presentation Function |
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| Title |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111392598A (en) * | 2020-04-22 | 2020-07-10 | 三一海洋重工有限公司 | Overload prevention device and method |
| CN112173977A (en) * | 2020-09-29 | 2021-01-05 | 闽江学院 | Hoisting structure for double-door crane |
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| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20170922 |