CN106429831A - Hoist and overhead crane device using the same - Google Patents
Hoist and overhead crane device using the same Download PDFInfo
- Publication number
- CN106429831A CN106429831A CN201610564636.8A CN201610564636A CN106429831A CN 106429831 A CN106429831 A CN 106429831A CN 201610564636 A CN201610564636 A CN 201610564636A CN 106429831 A CN106429831 A CN 106429831A
- Authority
- CN
- China
- Prior art keywords
- traction
- brake
- unloading
- traction machine
- hoist
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C11/00—Trolleys or crabs, e.g. operating above runways
- B66C11/16—Rope, cable, or chain drives for trolleys; Combinations of such drives with hoisting gear
-
- 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
-
- 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
- B66C13/18—Control systems or devices
- B66C13/40—Applications of devices for transmitting control pulses; Applications of remote control devices
- B66C13/44—Electrical transmitters
-
- 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
- B66C15/065—Arrangements or use of warning devices electrical
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention provides a hoist which can make hoist action without using any special device to descend a suspended load safely. The hoist uses a hoist motor to roll up/back a hoist rope equipped with a hook. The hoist is characterized by comprising an encoder detecting the rotational speed of the hoist motor, a hoist brake applying brake to the hoist motor, and a brake control processing portion controlling the hoist brake. The brake control processing portion controls the hoist brake based on the rotational speed of the hoist motor detected by the encoder when a control portion is in a fault unloading mode.
Description
Technical field
The present invention relates to the Unloading Technology during control unit fault of traction machine.
Background technology と
Traction machine (crane) makes hoist cable lift using the traction device with motor, thus makes to be installed on suspension hook
Goods moves up and down.Run it is impossible to make hoisted load lift when the control unit in traction machine breaks down, needs will hang lotus
Load unloads.
As the background technology of the art, there is Japanese Unexamined Patent Publication 2006-273547 publication (patent documentation 1).At this
Following technology has been recorded in publication：" in crane fault, with from crane side controller to outside take out from traction
The adapter that the branch line of the main operation circuit of motor/brake and traveling motor/brake connects, connects inclusion and has
Control traction, the bonder of the operation device of fault crane of the auxiliary operation circuit of control section of traveling of crane,
Via this connection circuit by fault crane described in plant-grid connection, fault can be re-operated by crane operation operation dish
Crane." (with reference to summary).
In addition, there being Japanese Unexamined Patent Publication 10-316377 publication (patent documentation 2).Following skill has been recorded in this publication
Art：" by the brake shaft with the rotary shaft link of main motor via clutch section and dead slow speed side reduction part and dead slow speed motor
Rotary shaft link, when fault occurs, in the extension mounting knob located at rotary shaft, resist and rotary shaft be braked
The braking moment of brake part, forcibly makes rotary shaft rotate." (with reference to summary).
Prior art literature
Patent documentation
Patent documentation 1：Japanese Unexamined Patent Publication 2006-273547 publication
Patent documentation 2：Japanese Unexamined Patent Publication 10-316377 publication
Content of the invention
Invention technical task to be solved
Run it is impossible to carry out lifting when the control unit of traction machine breaks down.If being to play the state of goods during fault,
When then repairing, danger close is it is therefore desirable to unload hoisted load.
In order to solve this problem, as traction machine control unit fault when countermeasure, such as in patent documentation 1, in advance
The structure of other control panel can simply be linked in the control panel setting controlling crane, during control panel fault, link another
Outer control panel makes the crane action of fault.
In addition, in patent documentation 2, by being provided for the handle making the rotary shaft of motor rotate manually, in fault
When so that the rotation of above-mentioned handle can be unloaded.
In order that the traction machine action of fault, setting is needed can simply to connect in above-mentioned patent documentation 1 other
The structure of control panel and arrange other control panel, in addition, need to be provided for make manually electronic in above-mentioned patent documentation 2
The handle of the rotary shaft rotation of machine.
In addition, in any one of above-mentioned patent documentation 1,2, in order to be unloaded, it is required to operator and is raised to be provided with
The top of the factory of traction machine.
It is an object of the invention to, provide a kind of device not needing spy it becomes possible to make the traction machine action of fault, peace
The traction machine entirely hoisted load being unloaded.
For solving the technical scheme of technical task
In order to solve above-mentioned problem, for example with the structure of claims record.
The application includes the multiple technical schemes that can solve the problem that above-mentioned technical task, enumerate one for example under, one kind is passed through
Hoisting motor make the hoist cable being provided with suspension hook roll/traction machine of backrush is it is characterised in that include：Detect above-mentioned traction electricity
The encoder of the rotating speed of motivation；Above-mentioned hoisting motor is applied with the traction brake of braking；With the above-mentioned traction brake of control
Brake control process portion, above-mentioned brake control process portion in the unloading mode that control unit breaks down, based on by upper
State the rotating speed of the hoisting motor that encoder detects, control above-mentioned traction brake.
Invention effect
In accordance with the invention it is possible to provide a kind of traction machine action not using special device just can make fault, safety
The traction machine that hoisted load is unloaded by ground.In addition, being raised to top also without operator during fault and being operated.
Problem beyond the above, structure and effect, the explanation by following embodiment can be definitely.
Brief description
Fig. 1 is the integrally-built axonometric chart of the converter type top lowering or hoisting gear representing embodiment.
Fig. 2 is the block diagram of the structure of major part of converter type top lowering or hoisting gear representing embodiment.
Fig. 3 is the block diagram of the structure of the Unloading Control representing embodiment.
Fig. 4 is the figure of the structure that the brake in the traction/row inverter control unit represent Fig. 3 controls.
Fig. 5 is of the flow chart representing that the execution of Unloading Control judges to process.
Fig. 6 is the figure of the operation input equipment representing the process for carrying out Fig. 5.
Fig. 7 is the flow chart of brake control process when representing unloading.
Description of reference numerals
1：Suspension hook
2：Hoist cable
3：Traction induction conductivity
4：Traction device
5：Row induction conductivity
6：Row device
7：Row truss
8：Traveling induction conductivity
9：Traveling device
10：Traveling truss
11：Traction/row DC-to-AC converter
12：Traction/row inverter control unit
13：Operation input equipment
14：Traction inverter
15：Row inverter
16：Induction conductivity brake
17：Encoder
18：Traveling DC-to-AC converter
19：Traveling inverter control unit
20：Traveling inverter
41：The brake control process portion of normal mode
42：The brake control process portion of unloading mode
43：Operation input detection process portion
44：Generally/unloading mode hand-off process portion
Specific embodiment
Accompanying drawing used below illustrates to embodiments of the invention.
Fig. 1 is the integrally-built axonometric chart of the converter type top lowering or hoisting gear representing the present embodiment.
Converter type top lowering or hoisting gear includes suspension hook 1, hoist cable 2, traction induction conductivity 3, traction device 4, row
Induction conductivity 5, row device 6, row truss 7, traveling induction conductivity 8, traveling device 9, traveling truss 10,
Traction/row DC-to-AC converter (referred to as master control part.) 11, operation input equipment 13 and advance use DC-to-AC converter 18.
Converter type top lowering or hoisting gear makes hoist cable 2 lift using the traction device 4 with traction induction conductivity 3,
The goods being arranged on suspension hook 1 is thus made (to be represented with the arrow of Z-direction, -Z direction in Z-direction.) i.e. upper and lower move up.
In addition, (being represented with the arrow of X-direction, -X direction in X-direction.) on (transverse direction), row induction conductivity 5 rotates, and makes to be in
The wheel of row device 6 moves in the X direction along row truss 7.In addition, in the Y direction (with Y-direction, -Y direction
Arrow represents.) on (fore-and-aft direction), traveling induction conductivity 8 rotates, and so that the wheel being in traveling device 9 is used along advancing
Truss 10 moves in the Y direction.
Fig. 2 is the block diagram of the structure of major part representing converter type top lowering or hoisting gear.
Traction induction conductivity 3 and row induction conductivity 5 are by being accommodated in draging of traction/row DC-to-AC converter 11
Draw/row inverter control unit 12 to be controlling.That is, when operator is when operating input equipment 13 input regulation instruction, traction/horizontal stroke
Row inverter control unit 12 controls traction inverter 14 and row inverter 15, from traction with inverter 14 and row with inverse
Become device 15 and apply to control required frequency, voltage, electric current to traction induction conductivity 3 and row induction conductivity 5, simultaneously right
Induction conductivity carries out release control with brake 16, and thus, when for traction device 4, the goods being installed on suspension hook 1 will not
Fall but move in z-direction.In addition, when for row device 6, making traction device 4 along row truss 7 in X
Side moves up.
In addition, traction/row inverter control unit 12 is taken into the information of the encoder 17 of rotating speed of detection motor, by electricity
The information of motivation rotating speed is used for the control of traction inverter 14.
Similarly, it is installed on the traveling induction conductivity 8 of traveling device 9, defeated from operation input equipment 13 in operator
When entering regulation instruction, the traveling inverter control unit 19 being accommodated in traveling DC-to-AC converter 18 controls traveling inverter 20,
Frequency required for traveling applies to control to traveling induction conductivity 8 with inverter 20, voltage, electric current, simultaneously to faradism
Motivation carries out release control with brake 16, so that traction device 4 is moved in the Y direction along traveling truss 10.
By Fig. 3～Fig. 7, the unloading structure during control unit fault of the present embodiment is illustrated.
Fig. 3 is the block diagram representing Unloading Control structure.
Traction/row inverter control unit 12 is equipped with microcomputer, when traction inverter 14, traction motor is detected
3 or traction/row inverter control unit 12 itself exception when, to unloading mode transfer.Here, to the transfer of unloading mode,
For example process to implement by the tick interrupt of the microcomputer of traction/row inverter control unit 12.
One of the flow chart that Unloading Control execution judges to process is represented in Fig. 5.In addition, representing for Fig. 5's in Fig. 6
One of the operation input equipment that flow process shifts to unloading mode.Operation input equipment 13 is used for making top lowering or hoisting gear action,
There is the on or off button of the on or off carrying out power supply, the thing making the upper and lower button up and down of suspension hook, making traction machine movement
Button and north and south button.The flow process of Fig. 5 is, in the operation input equipment 13 of Fig. 6, carry out on operate and carry out power remove
Operation, afterwards when carrying out power on operation, to unloading mode transfer.
First, confirm whether be unloading mode (S101) now, if not unloading mode, then carry out unloading labelling really
Recognize (S102).Then, if unloading is labeled as 0, it is confirmed whether to be in the abnormal detection of traction (S103), if abnormality detection
In, then confirm down operation input (S104).Then, if there being up or down operation input, confirm power remove operation input
(Sl05), if there being power remove to operate, unloading labelling is set to 1 (S106).By being set to unloading labelling with said sequence
1, when unloading is labeled as 1 (S102), confirm power on operation (S107), if there being power on to operate, to unloading mode
Transfer (S108).
Because can be shifted to unloading mode with said sequence, inactive in traction abnormality detection due to being in
When making, can carry out on operate and carry out dump operation, just can be to unloading mould as long as carrying out power on operation afterwards
Formula shifts.
In Figure 5, unloading etc. the rear method to normal mode return be power supply opening operation during unloading mode, is detected
When (S109), terminate unloading mode, to normal mode shift (S110).
In addition, in Fig. 5,6 example, by the combination by specific operation button to unloading mode transfer by way of
Constitute but it is also possible to being set as the combination of other operation buttons or can also being provided for special to unloading mode transfer
Operation button.
Here, if transfer to the confirmation of unloading mode, can be by existing from traction/row inverter control unit 12 output
Operation mode, so that lamp etc. is lighted or send chimes of doom with buzzer etc. and confirmed.
After being transferred to unloading mode, when detecting from the operation signal in downward direction of operation input equipment 13, drag
Draw/row inverter control unit 12 carries out the unloading of hoisted load by discharging the brake 16 of traction induction conductivity 3.This
When, traction/row inverter control unit 12 indicates the release/braking of brake 16, so that the rotating speed of traction induction conductivity 3 is not surpassed
Cross certain value.
The structure that the brake in the traction/row inverter control unit 12 of Fig. 3 controls is represented in Fig. 4.There is usual mould
The brake control process portion 41 of formula and the brake control process portion 42 of unloading mode, are examined by operation input detection process portion 43
Survey the operation of operation input equipment 13, based on the operation input information being in normal mode and being in unloading mode, by leading to
The brake in brake control process portion 41 and unloading mode that often/unloading mode hand-off process portion 44 switches normal mode controls
Processing unit 42.In addition, in the brake processing unit 41 of normal mode, traction system is controlled based on traction inverter output frequency
Dynamic device 16, in addition, in the brake control process portion 42 of unloading mode, control traction to brake based on hoisting motor rotating speed
Device 16.
In figure 3, when discharging traction brake 16, because of weight, the deadweight of hoisted load, suspension hook 1 falls downwards.?
When releasing traction brake 16, traction is confirmed according to the signal from the encoder 17 directly linking with traction motor 3
With the rotating speed of motor, carry out the release/braking of traction brake 16 so as to rotating speed is less than certain value such as 500rpm.
By brake control is implemented with the rotating speed of motor 3 based on traction, can be unloaded with the speed of safety.
In addition, in the example in figure 3, controlled in the way of the rotating speed not making traction motor exceedes certain value
System but it is also possible to continuously control brake so that the rotating speed of traction motor is the rotating speed of regulation.
The flow chart representing brake control process during unloading in Fig. 7.Fig. 7 is in the flow process of Fig. 5, when there being lower operation
The figure of Shi Jinhang Unloading Control.
First, in step 201, discriminate whether to be in unloading mode, in the case of being unloading mode, differentiate in step 202
Whether there is lower operation, in the case of having lower operation, carry out the release control of traction brake in step 204.Now, in step
203, in the case that the rotating speed of motor is such as below 500rpm, carries out the release control of traction brake, but exceed
In the case of 500rpm, the traction brake carrying out step 205 controls.
In addition, for, in the case of normal mode, carrying out common brake control process (open and close controlling) in step 206.
According to the present embodiment, when exception is detected it is when the work of control unit can not be carried out it is not necessary to operator is raised to
Top is operated.And, if common inverter crane, then traction/row inverter control unit 12, encoder 17
It is the carrying of standard, the device being therefore required for spy just can make the traction machine action broken down such that it is able to safety
Make hoisted load decline.
Claims (10)
1. a kind of traction machine, the hoist cable being provided with suspension hook is rolled/backrush using hoisting motor by it, and the feature of this traction machine exists
In, including：
Detect the encoder of the rotating speed of described hoisting motor；
Described hoisting motor is applied with the traction brake of braking；With
Control the brake control process portion of described traction brake,
Described brake control process portion in the unloading mode that control unit breaks down, based on detected by described encoder
The rotating speed of hoisting motor is controlling described traction brake.
2. traction machine according to claim 1 it is characterised in that：
Described brake control process portion, in the unloading mode that control unit breaks down, in the rotating speed of described hoisting motor is
Discharge described traction brake when below egulation rotating speed, drag to described when the rotating speed of described hoisting motor exceedes egulation rotating speed
Draw brake and apply braking.
3. traction machine according to claim 1 is it is characterised in that include：
Rotating speed based on hoisting motor is controlling the brake control process portion of the unloading mode of described traction brake；With
Control the brake control process of the normal mode of described traction brake based on traction with the output frequency of inverter
Portion,
According to the normal mode inputting from operation inputting part or unloading mode, switch described two brake control process portions.
4. traction machine according to claim 3 it is characterised in that：
Described operation inputting part includes carrying out the on-off button of the on-off of power supply, makes what suspension hook moved up and down to press up and down
Button, the thing button making traction machine movement and north and south button, by the combination operation of described button, input normal mode and unloading
Pattern.
5. traction machine according to claim 1 it is characterised in that：
When the exception of described hoisting motor, traction inverter or traction inverter control unit is detected to described unloading
Mode shifts.
6. traction machine according to claim 1 it is characterised in that：
Described hoisting motor carries out inverter control in normal mode.
7. traction machine according to claim 1 it is characterised in that：
There is the mechanism returning usual operation mode from unloading mode.
8. traction machine according to claim 1 it is characterised in that：
There is the mechanism of the state to operation modes such as outside output unloading modes.
9. traction machine according to claim 8 it is characterised in that：
To the mechanism of the outside state exporting described operation mode be lamp or chimes of doom produces mechanism.
10. a kind of top lowering or hoisting gear it is characterised in that：
Usage right requires the traction machine any one of 1～9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015157424A JP6556551B2 (en) | 2015-08-07 | 2015-08-07 | Hoisting machine and overhead crane apparatus using the same |
| JP2015-157424 | 2015-08-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106429831A true CN106429831A (en) | 2017-02-22 |
| CN106429831B CN106429831B (en) | 2019-07-16 |
Family
ID=58048096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610564636.8A Active CN106429831B (en) | 2015-08-07 | 2016-07-18 | Traction machine and the top lifting device for using it |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6556551B2 (en) |
| CN (1) | CN106429831B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111392605B (en) * | 2020-03-06 | 2021-09-28 | 杭州国电大力机电工程有限公司 | Control method for preventing hook slipping of hoisting mechanism of cable crane and cable crane |
| CN112141900A (en) * | 2020-09-10 | 2020-12-29 | 张家港宏昌钢板有限公司 | System and method for monitoring faults of molten iron desulphurization equipment in real time |
| CN112374404B (en) * | 2021-01-18 | 2021-04-02 | 河南巨人起重机集团有限公司 | Unattended intelligent crane |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0820494A (en) * | 1994-07-07 | 1996-01-23 | Meidensha Corp | Inverter hoist |
| JPH10316377A (en) * | 1997-05-22 | 1998-12-02 | Meidensha Corp | Emergency lifting down device |
| CN2619920Y (en) * | 2003-04-21 | 2004-06-09 | 胡晓林 | Crane stall protector |
| CN200978188Y (en) * | 2006-08-18 | 2007-11-21 | 上海三一科技有限公司 | Engine negative torsional moment controlling device in enclosed hydraulic circuit crane |
| CN101792089A (en) * | 2010-03-23 | 2010-08-04 | 上海能港电气工程科技有限公司 | Protection switching device for lost control of crane and related control method |
| JP4783578B2 (en) * | 2005-03-30 | 2011-09-28 | Ｊｆｅメカニカル株式会社 | Fault hoist operation system and repair method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59124690A (en) * | 1982-12-27 | 1984-07-18 | 日立機電工業株式会社 | Method of controlling vertical motion of winding of movable travelling body |
| JPS60153396A (en) * | 1984-01-20 | 1985-08-12 | 株式会社 タダノ | Limiter for free rate of fall of hung load in hydraulic driving winch for crane |
| JPH027289U (en) * | 1988-06-29 | 1990-01-18 | ||
| KR940001098B1 (en) * | 1988-12-28 | 1994-02-14 | 미쯔비시 덴끼 가부시기가이샤 | Variable speed electric hoist |
| JP2588653B2 (en) * | 1991-08-30 | 1997-03-05 | 三菱電機株式会社 | Variable speed hoist |
| JPH0769582A (en) * | 1993-09-03 | 1995-03-14 | Hitachi Ltd | Electric hoist with emergency brake releasing device |
| JP2004026326A (en) * | 2002-06-21 | 2004-01-29 | Hitachi Home & Life Solutions Inc | Brake releasing device at power failure in electric hoisting machine |
| JP5312867B2 (en) * | 2008-07-30 | 2013-10-09 | 株式会社キトー | Electric winding device |
-
2015
- 2015-08-07 JP JP2015157424A patent/JP6556551B2/en active Active
-
2016
- 2016-07-18 CN CN201610564636.8A patent/CN106429831B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0820494A (en) * | 1994-07-07 | 1996-01-23 | Meidensha Corp | Inverter hoist |
| JPH10316377A (en) * | 1997-05-22 | 1998-12-02 | Meidensha Corp | Emergency lifting down device |
| CN2619920Y (en) * | 2003-04-21 | 2004-06-09 | 胡晓林 | Crane stall protector |
| JP4783578B2 (en) * | 2005-03-30 | 2011-09-28 | Ｊｆｅメカニカル株式会社 | Fault hoist operation system and repair method |
| CN200978188Y (en) * | 2006-08-18 | 2007-11-21 | 上海三一科技有限公司 | Engine negative torsional moment controlling device in enclosed hydraulic circuit crane |
| CN101792089A (en) * | 2010-03-23 | 2010-08-04 | 上海能港电气工程科技有限公司 | Protection switching device for lost control of crane and related control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106429831B (en) | 2019-07-16 |
| JP6556551B2 (en) | 2019-08-07 |
| JP2017036110A (en) | 2017-02-16 |
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