CN203794531U - Safety protection device for steel wire rope reel of bridge crane - Google Patents
Safety protection device for steel wire rope reel of bridge crane Download PDFInfo
- Publication number
- CN203794531U CN203794531U CN201420210548.4U CN201420210548U CN203794531U CN 203794531 U CN203794531 U CN 203794531U CN 201420210548 U CN201420210548 U CN 201420210548U CN 203794531 U CN203794531 U CN 203794531U
- Authority
- CN
- China
- Prior art keywords
- cable drum
- frequency converter
- crane
- coder
- steel wire
- 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 - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 title abstract description 9
- 239000010959 steel Substances 0.000 title abstract description 9
- 239000000725 suspension Substances 0.000 claims description 5
- 230000000630 rising effect Effects 0.000 description 7
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Landscapes
- Control And Safety Of Cranes (AREA)
Abstract
The utility model discloses a safety protection device for a steel wire rope reel of a bridge crane, and relates to the technical field of bridge cranes. A multi-point travel limiting device is arranged on one side of the steel wire rope reel and comprises an encoder and a PLC (programmable logic controller); by using the encoder, the running position of a lifting hook can be confirmed; the steel wire rope reel is connected with the encoder through a flexible coupler; the output end of the encoder is connected with the input end of the PLC; the output end of the PLC is connected with the input end of a frequency converter; and the output end of the frequency converter is connected with a motor. The steel wire rope reel is automatically controlled; the control precision is high; and the steel wire rope reel runs safely and reliably.
Description
Technical field
The utility model relates to crane in bridge type technical field.
Background technology
Crane in bridge type is important tool and the equipment of production process mechanization, automation realized in modern industry and lifting transportation, in the departments such as industrial and mining enterprises, steel chemical, port and pier and logistics turnover and place, extensively uses.Crane in bridge type consists of crane span structure, lifting mechanism, traveling gear, several parts of electrical equipment, lifting mechanism is to realize material lifting, not hindered by ground object, the important mechanism of flexible handling material position, lifting mechanism is arranged on traveling vehicle frame, by electrical motor, retarder, drive the reel that is wound with steel rope, by motor forward/backward rotation, realize the lifting of suspension hook, complete the handling lifting work of material.Lifting mechanism operation must move in controlled scope, if et out of order, electrical motor can not normally move, reel rotation will occur not to stop, lay winding wire ropes drives suspension hook constantly rise or decline, and when rising to the crane span structure fault of will rushing to summit, pushes up bad crane facility; Excessively can there is the anti-winding of steel rope and can cause device damage equally in decline, occur large accident.
General reel protector is that mechanical type spindle nose is spacing at present; in real-world operation; often because the reasons such as vibration, pitting of contacts, the closing of contact are bad, rotating shaft wearing and tearing cause equipment failure rate high; make the hoisting crane cannot normal operation; and the spacing control accuracy of mechanical type spindle nose is low, it is loaded down with trivial details to adjust; make the object of the reliable and stable operation of bridge-type double beam hoisting crane out of reach, the normal operation that impact is produced, plant maintenance work capacity is large.
So need now a kind of can be to the automatic control device that the lifting of cable drum is controlled automatically and control accuracy is high, safe and reliable to operation.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of crane in bridge type cable drum safety guard, and this device has been realized automation to the control of cable drum, and control accuracy is high, safe and reliable to operation.
For addressing the above problem the technical scheme that the utility model takes, be: a kind of crane in bridge type cable drum safety guard; it is characterized in that: in cable drum one side, multiple spot distance caging device is installed; multiple spot distance caging device comprises coder and the PLC controller that can determine suspension hook run location; described cable drum is connected with coder by flexible clutch; the mouth of described coder is connected with the input end of PLC controller; the mouth of described PLC controller is connected with the input end of frequency converter, and the mouth of described frequency converter connects motor.
Preferably, described PLC controller is also connected with data display equipment, and described data display equipment is positioned at operator's compartment, is also provided with for controlling the master controller of motor lifting in operator's compartment.
Preferably, described run location comprises: lower limit and upper limit position.
Preferably, described run location sequentially comprises: lower limit, low speed, at a high speed, low speed and upper limit position.
Preferably, described frequency converter is connected with three phase mains by the first reactor, and the mouth of described frequency converter is connected with motor after by the second reactor.
Preferably, described coder adopts Omron coder, and model is E6CT-AG5C.
The beneficial effect that adopts technique scheme to produce is: 1, reliable: adopt advanced absolute value encoder rotation location and PLC rigorous data to detect and analytical technology, greatly improved serviceability, on coder, hung the code value corresponding to each position of equipment, even if a certain moment is subject to strong interference, next moment coder still can automatically be corrected code value to come, and can not cause because losing code the mistake output of control signal; 2, resolution is high: the resolution of this device can reach grade, can meet the needs of the occasion that accurate location and accurate limiting are controlled.3, adjust simple and direct: the adjustment of this device only needs subsidiary guidance panel to operate, and can reach the object of adjustment, and can complete parameter adjustment several seconds, and equipment needn't stop and can by guidance panel, adjust control signal simultaneously.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 whole functional block diagram of the present utility model;
The circuit diagram of Fig. 2 the utility model frequency converter;
Fig. 3 the utility model pictorial diagram.
Wherein, 1, PLC controller, 2, frequency converter, 3, motor, 4, cable drum, 5, multiple spot distance caging device, 6, coder, the 7, first reactor, the 8, second reactor, 9, data display equipment, 10, operator's compartment.
The specific embodiment
As shown in figures 1 and 3, in cable drum 4 one sides, multiple spot distance caging device 5 is installed, multiple spot distance caging device 5 comprises coder 6 and the PLC controller 1 that can determine suspension hook run location, described cable drum 4 is connected with coder 6 by flexible clutch, the mouth of described coder 6 is connected with the input end of PLC controller 1, the mouth of described PLC controller 1 is connected with the input end of frequency converter 2, and the mouth of described frequency converter 2 connects motor 3.
PLC controller 1 is also connected with data display equipment 9, and data display equipment 9 is positioned at operator's compartment 10, is also provided with for controlling the master controller of motor 3 liftings in operator's compartment 10, and run location comprises: lower limit and upper limit position.Described run location order from top to bottom comprises: lower limit, low speed, at a high speed, low speed and upper limit position.Described frequency converter 2 is connected with three phase mains by the first reactor 7, and the mouth of described frequency converter 2 passes through to be connected with motor 3 after the second reactor 8.Described coder 6 adopts Omron coder, and model is that E6CT-AG5C(flexible clutch carries, and Japanese Omron Corp produces).
As shown in Figure 1: the top of bridge-type double beam hoisting crane is cable drum 4, cable drum 4 reverses to realize the lifting to equipment by the forward of motor 3, cable drum 4 is connected with flexible clutch, flexible clutch is connected with the coder 6 in multiple spot distance caging device 5, flexible clutch drives the coder 6 in multiple spot distance caging device 5 to be rotated, the position code that rotary encoder 6 produces realizes the detection to equipment, 1 pair of rotating signal of PLC controller detects, calculate, then frequency converter 2 is sent to signal instruction, frequency converter 2 is controlled the forward of motor 3 again, reversion or keying.Wherein at the interior set location point of coder 6, comprise that upper change point, lower-limit point control motor 3 at a high speed or the location point of low-speed running in addition.
As shown in Figure 2, the main circuit that frequency converter 2 is controlled motor 3 will comprise frequency converter 2, motor 3, the first reactor 7 and the second reactor 8, the first reactor 7 mainly plays and suppresses surge voltage and the impact of surge current to frequency converter 2, the waveform distortion of the second reactor 8 high order harmonic that mainly 2 speed governing produce to frequency converter and generation is played and is leached harmonic voltage and harmonic current, improves power grid quality.First by electrical network input three phase mains, the A of frequency converter 2, B, C, D end are the control to the rotating speed of motor 3 and forward, reversion.1 pair of rotating signal of PLC controller detects, calculates, draw the position of grab bucket, after rising or drop to end position, grab bucket exports danger signal, the C, the D that disconnect frequency converter 2 hold the contact in corresponding control loop, i.e. the SXW rising limit and JXW falling-threshold stop frequency converter 2 and disconnect motor 3 power supplys, motor 3 stops rising and declining, the contactless switch dead electricity of band-type brake output simultaneously, thus the band-type brake at cable drum 4 places is moved, hold cable drum 4 tightly stall.In coder 6, also set and made motor 3 at a high speed and the location point of low cruise, for example, when equipment is caught in grab bucket, when just mentioning, corresponding position is low speed point, coder 6 is passed to PLC controller 1 by position signal, PLC controller 1 sends the B end closure that frequency converter 2 is controlled in instruction, thereby make motor 3 low cruises, when arriving high speed point, coder 6 is passed to PLC controller 1 by position code, same principle holds closed B end to open the A of frequency converter 2, thereby make motor 3 high-speed operations, when rising to low speed point, again reduce to low cruise, when rising to upper limit position, stop.The data display equipment 9 of being also furnished with in addition PLC controller 1 in operator's compartment 10 is also provided with for controlling the master controller of motor 3 liftings in operator's compartment 10, and master controller comprises rising to control ZL-S and decline controls ZL-J.
The beneficial effect that adopts technique scheme to produce is 1, reliable: adopt advanced absolute value encoder rotation location and PLC rigorous data to detect and analytical technology, greatly improved serviceability, on coder, hung the code value corresponding to each position of equipment, even if a certain moment is subject to strong interference, next moment coder still can automatically be corrected code value to come, and can not cause because losing code the mistake output of control signal; 2, resolution is high: the resolution of this device can reach grade, can meet the needs of the occasion that accurate location and accurate limiting are controlled.3, adjust simple and direct: the adjustment of this device only needs subsidiary guidance panel to operate, and can reach the object of adjustment, and can complete parameter adjustment several seconds, and equipment needn't stop and can by guidance panel, adjust control signal simultaneously.
Claims (6)
1. a crane in bridge type cable drum safety guard, it is characterized in that: in cable drum (4) one sides, multiple spot distance caging device (5) is installed, multiple spot distance caging device (5) comprises coder (6) and the PLC controller (1) that can determine suspension hook run location, described cable drum (4) is connected with coder (6) by flexible clutch, the mouth of described coder (6) is connected with the input end of PLC controller (1), the mouth of described PLC controller (1) is connected with the input end of frequency converter (2), the mouth of described frequency converter (2) connects motor (3).
2. crane in bridge type cable drum safety guard according to claim 1; it is characterized in that: described PLC controller (1) is also connected with data display equipment (9); described data display equipment (9) is positioned at operator's compartment (10), is also provided with for controlling the master controller of motor (3) lifting in operator's compartment (10).
3. crane in bridge type cable drum safety guard according to claim 1, is characterized in that: described run location comprises: lower limit and upper limit position.
4. crane in bridge type cable drum safety guard according to claim 3, is characterized in that: described run location order from top to bottom comprises: lower limit, low speed, at a high speed, low speed and upper limit position.
5. crane in bridge type cable drum safety guard according to claim 1; it is characterized in that: described frequency converter (2) is connected with three phase mains by the first reactor (7), the mouth of described frequency converter (2) is connected with motor (3) by after the second reactor (8).
6. crane in bridge type cable drum safety guard according to claim 1, is characterized in that: described coder (6) adopts Omron coder, and model is E6CT-AG5C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420210548.4U CN203794531U (en) | 2014-04-28 | 2014-04-28 | Safety protection device for steel wire rope reel of bridge crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420210548.4U CN203794531U (en) | 2014-04-28 | 2014-04-28 | Safety protection device for steel wire rope reel of bridge crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203794531U true CN203794531U (en) | 2014-08-27 |
Family
ID=51376765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420210548.4U Expired - Lifetime CN203794531U (en) | 2014-04-28 | 2014-04-28 | Safety protection device for steel wire rope reel of bridge crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203794531U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935921A (en) * | 2014-04-28 | 2014-07-23 | 新兴铸管股份有限公司 | Safety protection device of wire rope reel of bridge crane |
-
2014
- 2014-04-28 CN CN201420210548.4U patent/CN203794531U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935921A (en) * | 2014-04-28 | 2014-07-23 | 新兴铸管股份有限公司 | Safety protection device of wire rope reel of bridge crane |
| CN103935921B (en) * | 2014-04-28 | 2016-08-24 | 新兴铸管股份有限公司 | Bridge crane cable drum safety guard |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105253776B (en) | Semi-automatic control method of gantry crane | |
| CN203079568U (en) | Electrical control system of full-automatic smart crane | |
| CN103910288B (en) | A kind of can the sure brake PLC control system of self-identifying and control method thereof | |
| CN205787682U (en) | Identical tension highline sea Self Adaptive Control make-up system | |
| CN209098046U (en) | Four rope crane location closed loop of one kind chases after rope system | |
| CN102295236A (en) | Double gantry crane lifting device | |
| CN203794531U (en) | Safety protection device for steel wire rope reel of bridge crane | |
| CN104909275A (en) | Method and system for intelligently reducing speed of grab bucket/carrier loader and lifting-switching mechanism | |
| CN203612836U (en) | Multi-crane hoisting control device | |
| CN103935921A (en) | Safety protection device of wire rope reel of bridge crane | |
| CN204847945U (en) | Intelligence deceleration system and have rising of its and rise closing mechanism , hoist, ship unloaders | |
| CN105220653B (en) | A kind of intelligent trash system and its control method | |
| CN104444412A (en) | Electric automation improvement for bucket-wheel stacker reclaimer | |
| CN202322077U (en) | Laser anti-collision system for flexible leg of gantry crane | |
| CN208378301U (en) | A kind of lifting mechanism of tower crane Special safety braking system | |
| CN204022324U (en) | A kind of rubber tired crane suspension hook limit control system and rubber tired crane | |
| CN104199376A (en) | Intelligent steel salvaging system | |
| CN202245826U (en) | Lifting device with double gantry cranes | |
| CN202967977U (en) | Winch for crane | |
| CN211110794U (en) | Anti-slip hook device of hoisting tower crane with eddy current brake | |
| CN205034906U (en) | Mine winder stroke control automatic regulating apparatus | |
| CN201722068U (en) | Bridge-type hoisting crane displacement control device | |
| CN103640979B (en) | Height control method, device and system for tower crane lifting hook and tower crane | |
| CN103350965B (en) | Tower crane and lifting safety control method, equipment and system thereof | |
| CN203754326U (en) | Blast furnace winding protection system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140827 |
|
| CX01 | Expiry of patent term |