CN206645724U - A kind of crane girder deforms prior-warning device - Google Patents
A kind of crane girder deforms prior-warning device Download PDFInfo
- Publication number
- CN206645724U CN206645724U CN201720410841.9U CN201720410841U CN206645724U CN 206645724 U CN206645724 U CN 206645724U CN 201720410841 U CN201720410841 U CN 201720410841U CN 206645724 U CN206645724 U CN 206645724U
- Authority
- CN
- China
- Prior art keywords
- crane
- laser
- crane girder
- emitting device
- beam emitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of crane girder to deform prior-warning device, including laser beam emitting device and laser receiver, laser beam emitting device is fixedly installed on the middle part of crane girder lower surface through fix bar, laser beam emitting device setting parallel to the ground, and the side end carriage of the surface of emission face crane of laser beam emitting device is set, laser receiver is arranged on the side end carriage of crane, the vertical range of laser receiver and laser beam emitting device is equal to the maximum allowable deformation quantity of crane girder, the master switch of the output end control connection crane of laser receiver.The utility model can detect to the deformation extent of crane girder in real time, and when the degree of crook of crane girder reaches the largest deformation amount that crane girder can allow, the power supply of crane is disconnected in time, is ensured crane safety operation, is prevented security incident.
Description
Technical field
It the utility model is related to crane detection field, more particularly to a kind of crane girder deformation prior-warning device.
Background technology
Bridge crane is when manufacturing, in order to increase the structural strength of crane girder, typically by crane girder
It is made and scratches formula structure.For crane after serious overload and long-term overload operation, crane girder can produce the feelings of downwarp
Condition, crane is through deactivation after a while, and the structure of crane girder can gradually recover normal, but if crane is long-term
In serious overload condition or long-term overload operation, the downwarp situation of crane girder can seriously aggravate, if exceeding lifting
The largest deformation amount that main beam is allowed, crane, which must just be shut down, carries out main beam structure maintenance, otherwise can cause lifting owner
Girder construction part metal fatigue, so that crane girder bend fracture, crane is caused to fall, the great peace such as hanging piece suspender falls
Full accident, the also personal safety of serious threat staff while causing device damage.
Utility model content
The purpose of this utility model is that providing a kind of crane girder deforms prior-warning device, can be in crane girder
When degree of crook reaches the largest deformation amount that crane girder can allow, the power supply of crane is disconnected in time, ensures crane
Safe operation, prevent security incident.
To achieve the above object, the utility model adopts the following technical scheme that：
A kind of crane girder deforms prior-warning device, including laser beam emitting device and laser receiver, the laser hair
Injection device is fixedly installed on the middle part of crane girder lower surface through fix bar, laser beam emitting device setting parallel to the ground, and
The side end carriage of the surface of emission face crane of laser beam emitting device is set, and the laser receiver is arranged at the one of crane
On the beam of side, the vertical range of laser receiver and laser beam emitting device is equal to the maximum allowable deformation quantity of crane girder,
The master switch of the output end control connection crane of laser receiver.
Preferably, laser beam emitting device includes laser driver, laser, fibre-optical splice and beam expanding lens, laser driver
It is fixedly connected with laser, laser connects fibre-optical splice through optical fiber, and light joint is fixedly connected with beam expanding lens, and beam expanding lens is parallel
Set in ground, ensureing the laser of laser transmitting can be mapped on laser receiver.
Preferably, the laser receiver is fixedly installed in receiving terminal fixed seat, and the receiving terminal fixed seat is through swollen
Swollen bolt is fixedly installed on the side end carriage of crane.
Preferably, the expansion bolt includes bolt and the nut that is rotatably provided on bolt, bolt it is left it is half side outside
There is a screw thread in portion, right half side tapered, nut rotation be set in bolt it is left it is half side on, bolt it is right it is half side be arranged with sleeve pipe outside,
Some otch are provided with the right side of sleeve pipe, spring washer and plain washer are provided between described sleeve pipe and nut.
Preferably, the laser receiver includes receiving lens and photodiode, and receiving lens are arranged at photosensitive two
Pole pipe front end, photodiode are connected with detection circuit, and the detection circuit includes the first slide rheostat, the second slip variable resistance
Device, the first triode and the second triode, the slide rheostat connection positive source of one end first of photodiode, the other end
Ground connection, the sliding end of the first slide rheostat connect the base stage of the first triode, and the colelctor electrode connection power supply of the first triode is just
Pole, the emitter stage of the first triode connect the sliding end of the second slide rheostat, and one end ground connection of the second slide rheostat is another
The base stage of the second triode of end connection, coil connection positive source of the colelctor electrode through auxiliary reclay of the second triode are middle
The coil both ends of relay are parallel with diode, the grounded emitter of the second triode, the contact control of the auxiliary reclay
Connect the master switch of crane.
Preferably, in addition to protection circuit, the contact of the auxiliary reclay connect always opening for crane through protection circuit
Close, the protection circuit includes auxiliary reclay and the time relay, one end connection of the normally-closed contact of the auxiliary reclay
Positive source, the other end connect power cathode through magnetic valve, and solenoid valve control connects the master switch of crane, auxiliary reclay
One end connection positive source of first normally opened contact, coil connection power cathode of the other end through the time relay, middle relay
One end connection positive source of second normally opened contact of device, the normally opened contact through the time relay and alarm connect the other end successively
Connect power cathode.
Preferably, it is provided with transparent watertight shell on the outside of the laser beam emitting device and laser receiver.
The utility model is simple in construction, by laser beam emitting device and laser receiver, to the curved of crane girder
Qu Chengdu is detected, and during crane girder normal work, laser receiver does not receive swashing for laser beam emitting device transmitting
Optical signal, crane normal work；When the downwarp degree of crane girder reaches the maximum allowable deformation quantity of crane girder,
The laser signal of laser firing signals transmitting is received by laser receiver, and laser receiver controls the master switch of crane
Disconnect, avoid crane from working on and cause security incident；Circuit and protection circuit connect laser receiver after testing successively
The master switch of heavy-duty machine is picked up, when the downwarp degree of crane girder reaches the maximum allowable deformation quantity of crane girder, lifting
The master switch of machine disconnects, while the time relay in protection circuit starts timing, if in the timing time of the time relay,
Crane girder does not restore to the original state, then warning device acts, and reminds staff to repair crane girder, if in the time
In the timing time of relay, crane girder restores to the original state, then the master switch of crane continues to open, and crane continues work
Make, avoid crane due to instantaneous pressure during flexural deformation, the master switch malfunction of crane, ensure that crane safety is reliable
Run on ground.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of laser beam emitting device described in the utility model；
Fig. 3 is the circuit theory diagrams of detection circuit described in the utility model；
Fig. 4 is the circuit theory diagrams of protection circuit described in the utility model.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described reality
It is only section Example of the present utility model to apply example, rather than whole embodiments.Based on the embodiment in the utility model,
Other all embodiments that those of ordinary skill in the art are obtained on the premise of creative work is not made, belong to this
The protection domain of utility model.
As shown in Figures 1 to 4, a kind of crane girder deformation prior-warning device described in the utility model, including laser hair
Injection device 5 and laser receiver 4, laser beam emitting device 5 are fixedly installed in the lower surface of crane girder 1 through fix bar 6
Portion, 5 setting parallel to the ground of laser beam emitting device, and the side end carriage 2 of the surface of emission face crane of laser beam emitting device 5 is set
Put, laser receiver 4 is arranged on the side end carriage 2 of crane, and laser receiver 4 is vertical with laser beam emitting device 5
Distance is equal to the maximum allowable deformation quantity of crane girder 1, and the output end control connection crane of laser receiver 4 is always opened
Close.
Laser beam emitting device 5 is used to launch laser signal, including laser driver 5-5, laser 5-4, fibre-optical splice 5-2
And beam expanding lens 5-1, laser driver 5-5 are fixedly connected with laser 5-4, laser 5-4 is through optical fiber 5-3 connection fibre-optical splices 5-
2, light joint 5-2 is fixedly connected with beam expanding lens 5-1, and beam expanding lens 5-1 is set parallel to ground, ensures laser 5-4 transmittings
Laser can be mapped on laser receiver 4.
Laser receiver 4 is used for the laser signal for receiving the transmitting of laser beam emitting device 5, and in the present embodiment, laser connects
Receiving apparatus 4 uses photodiode D1, and photodiode D1 front end is provided with receiving lens, and receiving lens use convex lens,
Photodiode D1 is connected with detection circuit, and detection circuit includes the first slide rheostat R1, the second slide rheostat R2, first
Triode VT1 and the second triode VT2, photodiode D1 one end the first slide rheostat R1 connection positive sources, separately
One end is grounded, and the first slide rheostat R1 sliding end connects the first triode VT1 base stage, the first triode VT1 current collection
Pole connects positive source, and the first triode VT1 emitter stage connects the second slide rheostat R2 sliding end, and second slides variable resistance
Device R2 one end ground connection, the other end connect the second triode VT2 base stage, and the second triode VT2 colelctor electrode is through middle relay
The coil K1 connection positive sources of device, the coil K1 both ends of auxiliary reclay are parallel with diode D2, the second triode VT2 hair
Emitter grounding, the contact of auxiliary reclay connect the master switch of crane through protection circuit.
Protection circuit includes auxiliary reclay and the time relay, the normally-closed contact K1-1 of auxiliary reclay one end connection
Positive source, the other end is through magnetic valve S connection power cathodes, the master switch of magnetic valve S control connection cranes, auxiliary reclay
The first normally opened contact K1-2 one end connection positive source, coil KT1 connection power cathode of the other end through the time relay,
Second normally opened contact K1-3 of auxiliary reclay one end connection positive source, the other end are normally opened tactile through the time relay successively
Point KT1-1 and alarm DD connection power cathodes.
During crane normal work, laser receiver 4 does not receive the laser signal of the transmitting of laser beam emitting device 5, light
Quick diode D1 cut-offs, the first triode VT1 and the second triode VT2 are turned off, and the coil K1 dead electricity of auxiliary reclay, its is normal
Closed contact K1-1 is closed, crane normal work；When crane girder 1 declines because bearing pressure, laser beam emitting device 5 is sent out
The laser signal penetrated is received by photodiode D1, increases with the dropping distance of crane girder 1, photodiode D1's
Resistance becomes larger, when the dropping distance of crane girder 1 is equal to the maximum allowable deformation quantity of crane girder 1, the one or three
Pole pipe VT1 and the second triode VT2 are both turned on, the coil K1 invocation points of auxiliary reclay, and its normally-closed contact K1-1 disconnects, magnetic valve
S dead electricity, so that the master switch of crane disconnects, crane is stopped, while the first normally opened contact K1- of auxiliary reclay
2 and second normally opened contact K1-3 close, time relay KT1 starts timing, if in time relay KT1 timing time
Interior, crane girder 1 does not restore to the original state, then after timing time arrives, the normally opened contact KT1-1 closures of the time relay, and alarm
Device DD alarms, and reminds staff to repair crane girder 1, if in time relay KT1 timing time, lifting
Main beam 1 restores to the original state, then photodiode D1 ends, the coil K1 dead electricity of auxiliary reclay, its normally-closed contact K1-1 closures,
Magnetic valve S obtains electric, and the master switch of crane is opened, and crane works on, and avoids crane from bending change due to instantaneous pressure
During shape, the master switch malfunction of crane, ensure that crane safety is reliably run, meanwhile, the first of auxiliary reclay is normally opened
Contact K1-2 and the second normally opened contact K1-3 disconnects, time relay KT coil losing electricity, stops timing.
In addition, laser receiver 4 is fixedly installed in receiving terminal fixed seat 3,3 expanded bolt of receiving terminal fixed seat is consolidated
Surely it is arranged on the side end carriage 2 of crane, expansion bolt includes bolt and the nut being rotatably provided on bolt, a left side for bolt
There is a screw thread half side outside, right half side tapered, nut rotation be set in bolt it is left it is half side on, the right of bolt half side is arranged outside
There is sleeve pipe, some otch are provided with the right side of sleeve pipe, spring washer and plain washer are provided between sleeve pipe and nut.When in use,
Drilling is opened up out on end carriage 2 first, and bolt and sleeve pipe are fitted into drilling, and tightening nut, in the screwing operations of nut 5
In, sleeve pipe is fixed, now in bolt sleeve pipe, and sleeve pipe is strutted, and makes the whole hole of sleeve pipe overflow, and then by expanding screw
Bolt is fixed on end carriage 2.
In the present embodiment, the outside of laser beam emitting device 5 and laser receiver 4 is provided with transparent watertight shell 7.
The utility model can detect to the deformation extent of crane girder in real time, and in the bending of crane girder
When degree reaches the largest deformation amount that crane girder can allow, the power supply of crane is disconnected in time, ensures crane safety
Operation, prevents security incident.
Claims (7)
1. a kind of crane girder deforms prior-warning device, it is characterised in that：Including laser beam emitting device and laser receiver, institute
The middle part that laser beam emitting device is fixedly installed on crane girder lower surface through fix bar is stated, laser beam emitting device is parallel to the ground
Set, and the side end carriage of the surface of emission face crane of laser beam emitting device is set, the laser receiver has been arranged at
On the side end carriage of heavy-duty machine, the vertical range of laser receiver and laser beam emitting device is equal to the maximum allowable of crane girder
Deformation quantity, the master switch of the output end control connection crane of laser receiver.
A kind of 2. crane girder deformation prior-warning device as claimed in claim 1, it is characterised in that：Laser beam emitting device includes
Laser driver, laser, fibre-optical splice and beam expanding lens, laser driver are fixedly connected with laser, and laser connects through optical fiber
Fibre-optical splice is connect, light joint is fixedly connected with beam expanding lens, and beam expanding lens is set parallel to ground, ensures the laser of laser transmitting
It can be mapped on laser receiver.
A kind of 3. crane girder deformation prior-warning device as claimed in claim 2, it is characterised in that：The laser receiver
It is fixedly installed in receiving terminal fixed seat, the expanded bolt of receiving terminal fixed seat is fixedly installed on the side end carriage of crane
On.
A kind of 4. crane girder deformation prior-warning device as claimed in claim 3, it is characterised in that：The expansion bolt includes
There are screw thread, right half side tapered, nut rotary sleeve in bolt and the nut being rotatably provided on bolt, the left half side outside of bolt
Be located at bolt it is left it is half side on, bolt it is right it is half side it is outer be arranged with sleeve pipe, be provided with some otch on the right side of sleeve pipe, described sleeve pipe with
Spring washer and plain washer are provided between nut.
A kind of 5. crane girder deformation prior-warning device as claimed in claim 1, it is characterised in that：The laser receiver
Including receiving lens and photodiode, receiving lens are arranged at photodiode front end, and photodiode is with detecting circuit phase
Even, the detection circuit includes the first slide rheostat, the second slide rheostat, the first triode and the second triode, photosensitive
The slide rheostat connection positive source of one end first of diode, other end ground connection, the sliding end of the first slide rheostat connect
Connect the base stage of the first triode, the colelctor electrode connection positive source of the first triode, the emitter stage connection second of the first triode
The sliding end of slide rheostat, one end ground connection of the second slide rheostat, the base stage of the other end the second triode of connection, the two or three
Coil connection positive source of the colelctor electrode of pole pipe through auxiliary reclay, the coil both ends of auxiliary reclay are parallel with diode,
The grounded emitter of second triode, the master switch of the contact control connection crane of the auxiliary reclay.
A kind of 6. crane girder deformation prior-warning device as claimed in claim 5, it is characterised in that：Also include protection circuit,
The contact of the auxiliary reclay through protection circuit connect crane master switch, the protection circuit include auxiliary reclay and
The time relay, one end connection positive source of the normally-closed contact of the auxiliary reclay, the other end connect power supply through magnetic valve
Negative pole, solenoid valve control connect the master switch of crane, and one end of the first normally opened contact of auxiliary reclay connects positive source,
Coil connection power cathode of the other end through the time relay, one end connection power supply of the second normally opened contact of auxiliary reclay is just
Pole, the normally opened contact through the time relay and alarm connect power cathode to the other end successively.
A kind of 7. crane girder deformation prior-warning device as claimed in claim 6, it is characterised in that：The laser beam emitting device
And transparent watertight shell is provided with the outside of laser receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720410841.9U CN206645724U (en) | 2017-04-19 | 2017-04-19 | A kind of crane girder deforms prior-warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720410841.9U CN206645724U (en) | 2017-04-19 | 2017-04-19 | A kind of crane girder deforms prior-warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206645724U true CN206645724U (en) | 2017-11-17 |
Family
ID=60276298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720410841.9U Expired - Fee Related CN206645724U (en) | 2017-04-19 | 2017-04-19 | A kind of crane girder deforms prior-warning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206645724U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941139A (en) * | 2017-12-06 | 2018-04-20 | 中国建筑股份有限公司 | Scaffolding steel pipe bends quantitatively measuring device and its measuring method |
| CN108328476A (en) * | 2018-04-08 | 2018-07-27 | 苏州库力铁重工有限公司 | Apparatus for examination and repair for crane |
| CN108328479A (en) * | 2018-04-08 | 2018-07-27 | 苏州库力铁重工有限公司 | Crane girder deforms prior-warning device |
| CN108483259A (en) * | 2018-03-22 | 2018-09-04 | 东南大学 | A kind of tower crane inclination angle and amount of deflection on-line monitoring system and data method |
| CN109484977A (en) * | 2018-12-25 | 2019-03-19 | 河南工学院 | A kind of micro- deformation detecting device of double girder crane trolley |
| CN114104108A (en) * | 2021-10-26 | 2022-03-01 | 苏州渭中科技发展有限公司 | Chassis structure suitable for new energy automobile |
| CN114620435A (en) * | 2022-04-11 | 2022-06-14 | 西南交通大学 | Heavy-duty roller guide rail and sliding table device based on optical measurement overload early warning |
-
2017
- 2017-04-19 CN CN201720410841.9U patent/CN206645724U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941139A (en) * | 2017-12-06 | 2018-04-20 | 中国建筑股份有限公司 | Scaffolding steel pipe bends quantitatively measuring device and its measuring method |
| CN108483259A (en) * | 2018-03-22 | 2018-09-04 | 东南大学 | A kind of tower crane inclination angle and amount of deflection on-line monitoring system and data method |
| CN108328476A (en) * | 2018-04-08 | 2018-07-27 | 苏州库力铁重工有限公司 | Apparatus for examination and repair for crane |
| CN108328479A (en) * | 2018-04-08 | 2018-07-27 | 苏州库力铁重工有限公司 | Crane girder deforms prior-warning device |
| CN108328476B (en) * | 2018-04-08 | 2023-12-12 | 苏州库力铁重工有限公司 | Overhauling device for crane |
| CN109484977A (en) * | 2018-12-25 | 2019-03-19 | 河南工学院 | A kind of micro- deformation detecting device of double girder crane trolley |
| CN114104108A (en) * | 2021-10-26 | 2022-03-01 | 苏州渭中科技发展有限公司 | Chassis structure suitable for new energy automobile |
| CN114620435A (en) * | 2022-04-11 | 2022-06-14 | 西南交通大学 | Heavy-duty roller guide rail and sliding table device based on optical measurement overload early warning |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206645724U (en) | A kind of crane girder deforms prior-warning device | |
| CN204389023U (en) | A kind of arclight sensor of loop mode | |
| CN205080689U (en) | External damage device is prevented to transmission line laser | |
| CN106300207A (en) | Power transmission overhead ground wire important leap region security is standby protects method of attachment and device | |
| CN201402288Y (en) | Anti-static wrist strap monitor | |
| CN205581249U (en) | Transmission line fault monitoring system | |
| CN107504951A (en) | The real-time monitoring system and its monitoring method of a kind of communication iron tower | |
| CN104792409A (en) | High-power microwave ignition detecting system and high-power microwave ignition detecting method | |
| CN104700541B (en) | A kind of anti-theft detection method based on road lighting cable | |
| CN204389044U (en) | A kind of marmem power circuit overheat indicator | |
| CN106786355A (en) | A kind of intelligent grid protector based on OR gate | |
| CN204230865U (en) | A kind of motor protecting device | |
| CN201903661U (en) | Sensing device for line-tracking robot | |
| CN206711328U (en) | A kind of suspension circuit wire break alarm | |
| CN109100810A (en) | Foreign matter method for detecting and power-supply system with foreign matter detecting function | |
| CN204313854U (en) | A kind of focus type Fibre Optical Sensor | |
| CN201623456U (en) | Residual current action relay | |
| CN205720522U (en) | A kind of transmission of electricity line detector | |
| CN207650947U (en) | A kind of anti-intrusion warning device and system | |
| CN100423033C (en) | Electrical pole dragline monitoring and alarming system | |
| CN201097375Y (en) | Solar pre-annunciator for preventing optical and cable line from being stealing | |
| CN206575157U (en) | A kind of battery power feeds electric voltage reverse-connection protection circuit | |
| CN203259894U (en) | Automatic monitoring device of water conservancy gate | |
| CN209590228U (en) | Solenoid valve break detection circuit | |
| CN204087445U (en) | A kind of well lid fault alarm |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171117 Termination date: 20200419 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |