CN201694705U - Overload protecting and weighing protector of construction lifter - Google Patents
Overload protecting and weighing protector of construction lifter Download PDFInfo
- Publication number
- CN201694705U CN201694705U CN2010202429042U CN201020242904U CN201694705U CN 201694705 U CN201694705 U CN 201694705U CN 2010202429042 U CN2010202429042 U CN 2010202429042U CN 201020242904 U CN201020242904 U CN 201020242904U CN 201694705 U CN201694705 U CN 201694705U
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- signal
- pulling force
- signal output
- lifter
- weight
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Abstract
The utility model discloses an overload protecting and weighing protector of a construction lifter, which comprises tension sensors and ring plate type tension sensors arranged on the construction lifter; two rings of the ring plate type tension sensors are respectively connected with a drive plate pin roll of the construction lifter and a suspension cage pin roll; signal output terminals of the ring plate type tension sensors are connected with the input end of a signal amplifier; the signal output end of the signal amplifier is connected with the input end of an A/D converter; the signal output end of the A/D converter is connected with the signal input end of a 16-digit singlechip processor; and two signal output ends of the 16-digit singlechip are respectively connected with a relay, a display and an alarm of an electrical control system for controlling the lifter and the signal input end output by weight pulse. The utility model can accurately weigh the load in the suspension cage of the lifter, has high reliability, can be simply and repeatedly arranged, acquires an effective signal for a control circuit of the lifter and can be widely used for overload protection of various construction lifters.
Description
Technical field
The utility model relates to the anti-overload protection device of a kind of safety guard of hoisting crane machinery, particularly a kind of building hoist.
Background technology
At present, in each camp site of construction trade, building hoist is a kind of widely used vertical lifting transportation device, and it is of a great variety.As drag and draw formula, winding type building hoist etc., its steel rope end is direct muscles and bones bonded assembly with the cage top, in work progress, when overloading, cage can shine into steel rope and cylinder skids, the braking failure, even steel rope tears weak point, cage falls, cause equipment to damage, serious safety misadventure takes place in personal casualty.Traditional anti-overload protection device adopts the pin type sensor; have being subjected to the demanding shortcoming of force direction; and after dismounting, need to proofread and correct again and set; precision of weighing and accuracy are also not enough; and can not make different promptings and control according to different overload scopes, more can not protector be reset to satisfy different transportation requests according to the demand of reality.
The utility model content
The purpose of this utility model provides the anti-overload of a kind of building hoist and the protector of weighing, and solve the anti-overload protection device poor reliability of building hoist, precision is low, repeats the technical matters of installation property difference; And stop the safety misadventure problem that takes place because of cage overload.
For achieving the above object, the utility model adopts following technical scheme: the anti-overload of a kind of building hoist and the protector of weighing, comprise the pulling force sensor and the controller that are installed on building hoist,
Described pulling force sensor is two ring-plate pulling force sensors, and two rings of ring-plate pulling force sensor are connected with the cage bearing pin with the drive plate bearing pin of building hoist respectively;
The signal output terminal of ring-plate pulling force sensor is connected with the input end of signal amplifier, the signal output part of signal amplifier is connected with the input end of A/D converter, the A/D converter signal output part is connected with the signal input part of 16 processor of single chip computer, and two signal output parts of 16 micro controller systems are connected with relay, telltale, annunciator and the signal input part of weight pulse output of control elevator electric control system respectively.
Described telltale is charactron telltale or Liquid Crystal Display (LCD).
Described 16 micro controller systems have pulse output end of 20% weight, 50% weight, 90% weight and 100% weight.
Compared with prior art the utlity model has following characteristics and beneficial effect: the structure that the utility model has adopted the plate ring type pulling force sensor to match with controller, the plate ring type pulling force sensor is stressed clear and definite, a large amount of at present pin type sensors that use have been overcome to being subjected to the demanding shortcoming of force direction, and after dismounting, do not need to proofread and correct again and set, can all around move, the complicated stressed mono-pulling force that is transformed into, accurately the load in the weighing cage has improved the precision and the accuracy of weighing greatly.
In addition; the utility model also has the control accuracy height; be active in one's movements, compactness rational in infrastructure, easy for installation, the cost cost is low, reliability is high; repeat to install simple advantage; the control circuit that can be elevator is gathered the actv. signal, can be widely used in building construction hoist or other various elevator machineries are made overload protection.
Description of drawings
The utility model is described in more detail below in conjunction with accompanying drawing.
Fig. 1 is an installation site of the present utility model scheme drawing.
Fig. 2 is an A point enlarged drawing among Fig. 1.
Fig. 3 is a structure composition frame chart of the present utility model.
Fig. 4 is the parameter setting operation interface scheme drawing of controller.
Fig. 5 is the structural representation between pulling force sensor, drive plate and the cage.
Fig. 6 is the schematic perspective view of ring-plate pulling force sensor.
Reference numeral: 1-drive plate bearing pin, 2-ring-plate pulling force sensor, 3-cage bearing pin, 4-elevator guide rails, 5-drive plate, 6-drive motor, 7-elevator craning cage.
The specific embodiment
Referring to Fig. 1, Fig. 2, shown in Figure 5; the anti-overload of this building hoist and the protector of weighing; comprise the pulling force sensor and the controller that are installed on building hoist; described pulling force sensor is two ring-plate pulling force sensors 2, and two rings of ring-plate pulling force sensor are connected with cage bearing pin 3 with the drive plate bearing pin 1 of building hoist respectively.The cage bearing pin is captiveed joint with the hanger of elevator craning cage, connect drive motor 6 on the drive plate 5, drive plate 5 is connected with elevator guide rails 4 guiding with elevator craning cage 7, and driven wheel is fixed on the tooth bar of elevator guide rails, and cage is suspended on the drive plate by 2 pulling force sensor plates.Install simply hang and installation site like this, has overcome the shortcoming that needs direction of pin type sensor, does not need to proofread and correct again and set after dismounting, can all around move, and becomes the mono-pulling force.
Referring to Fig. 3, the signal output terminal of ring-plate pulling force sensor is connected with the input end of signal amplifier, the signal output part of signal amplifier is connected with the input end of A/D converter, the A/D converter signal output part is connected with the signal input part of 16 processor of single chip computer, and two signal output parts of 16 micro controller systems are connected with relay, telltale, annunciator and the signal input part of weight pulse output of control elevator electric control system respectively.
Described telltale is charactron telltale or Liquid Crystal Display (LCD).
Signal amplifier: the weight signal that is used to handle elevator craning cage; A/D converter: analog signal conversion is become digital signal; 16 processor of single chip computer: the operation of control elevator; Charactron shows: be used for showing current load carrying ability; Relay output: 110% load carrying ability is linked in the electric control system of elevator through relay output; Audible alarm: 90% load carrying ability is through audible alarm.
The controller that anti-overload is weighed in the protector adopts performance-oriented AVR Single-chip Controlling; 16 A/D converters, the pulse output weight numerical value that adopts photoelectricity to isolate, relay contact output overload signal; sound and light alarm during 90% weight, sound and light alarm and relay contact output during 100% weight.
Described 16 micro controller systems have pulse output end of 20% weight, 50% weight, 90% weight and 100% weight, and the load carrying ability of building hoist is meant the people's goods total weight on the cage.When static load, when the load in the cage reaches 90%, send sound and light alarm, reach at 100% o'clock, except sound and light alarm, cut off cage operation circuit simultaneously, cage can not move, lay down part load after cage resume operation.The running velocity and the braking time of cage controlled in these four outputs simultaneously in addition, and running velocity can suitably improve braking retardation when the cage underloading; Running velocity can suitably reduce when the cage heavy duty, and braking in advance.
The weigh principle of work of protector of anti-overload is as follows: the resistance strain gauge of pulling force sensor converts the weight signal of cage to electric quantity signal output; amplification and processing through signal; A/D converter becomes digital signal with analog signal conversion; through 16 micro controller system calculation process; the load carrying ability that numeric display is current; the relay output of 110% load carrying ability is linked in the electric control system of elevator, the operation of control elevator.The audible alarm of 90% load carrying ability.
Referring to shown in Figure 4, the controller function interface of the anti-overload of building hoist and the protector of weighing comprises four function keys: 1, reset key 02, setting key RESET, 3, increase ▲, 4, reduce ▲.
The setting step of the function of each key and parameter is as follows: 1, reset key 0 be the peeling key, press reset key 0 after, the weight that shows on the controller is " 0 ".
2, setting key RESET presses setting key RESET, enters function menu.The left side shows " 1 ", enters to allow the maxim setting, and the back of loosing one's grip shows maxim, is defaulted as 2000 kilograms.Click " (RESET) is set " again, the left side shows " 2 ", enters the setting of sensor full scale, and the back of loosing one's grip shows range, is defaulted as 6000 kilograms.Click " (RESET) is set " again, the left side shows " 3 ", enters the coefficient correction adjustment, and the back of loosing one's grip shows coefficient, is defaulted as 1000.By " increase " " minimizing " key, adjustment numerical values recited.Show current observed reading according to button is set again, withdraw from the state of setting, and preserved data are set.
3, coefficient adjustment: press continuously button is set, show up to the left side " 3 " to enter coefficient correction.Enhancement coefficient is read displayed value and is increased, otherwise reduces.Adjust to suitable coefficient, the gravimetric value that the protector of weighing is shown equates with actual weight.
Output point: the output of 100% hoisting capacity, the output of 90% hoisting capacity, the output of 50% hoisting capacity, the output of 20% hoisting capacity.
Referring to shown in Figure 6, the parameter of plate ring type pulling force sensor is as follows:
1, oad
| Range | A | B | C | D | E |
| 3T | 200 | 65 | 30 | 130 | 40 |
2, the parameter of sensor:
| | 3T |
| Temperature | |
| 25?--C | |
| Output sensitivity S | 1.998 /V |
| Linear L | 0.05 %FS |
| Lag behind | 0.05?%FS |
| Repeatability | 0.05?%FS |
| Output at zero point | ±0.1?%FS |
| The zero temperature influence | 0.02 %FS/10--C |
| Input impedance | 385±15Ω |
| Output impedance | 350±3Ω |
| Insulation impedance | ≥5000MΩ |
| Range of temperatures | -30～70 |
| The safety overload | 150% |
| |
5～15VDC |
Adopt the plate ring type pulling force sensor, install simply, need accurately align stressed direction of bearing pin and the big shortcoming of stressed variation when having overcome the installation of transverse bolt shaft type sensor.This device does not need to proofread and correct again and set after dismounting, can all around move, and becomes the mono-pulling force, and is stressed clear and definite constant, thereby the operation precision height.
Claims (3)
1. anti-the overload and the protector of weighing of building hoist comprises the pulling force sensor and the controller that are installed on building hoist, it is characterized in that:
Described pulling force sensor is two ring-plate pulling force sensors (2), and two rings of ring-plate pulling force sensor are connected with cage bearing pin (3) with the drive plate bearing pin (1) of building hoist respectively;
The signal output terminal of ring-plate pulling force sensor is connected with the input end of signal amplifier, the signal output part of signal amplifier is connected with the input end of A/D converter, the A/D converter signal output part is connected with the signal input part of 16 processor of single chip computer, and two signal output parts of 16 micro controller systems are connected with relay, telltale, annunciator and the signal input part of weight pulse output of control elevator electric control system respectively.
2. the anti-overload of building hoist according to claim 1 and the protector of weighing, it is characterized in that: described telltale is charactron telltale or Liquid Crystal Display (LCD).
3. the anti-overload of building hoist according to claim 1 and the protector of weighing, it is characterized in that: described 16 micro controller systems have pulse output end of 20% weight, 50% weight, 90% weight and 100% weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202429042U CN201694705U (en) | 2010-06-30 | 2010-06-30 | Overload protecting and weighing protector of construction lifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202429042U CN201694705U (en) | 2010-06-30 | 2010-06-30 | Overload protecting and weighing protector of construction lifter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201694705U true CN201694705U (en) | 2011-01-05 |
Family
ID=43395947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202429042U Expired - Fee Related CN201694705U (en) | 2010-06-30 | 2010-06-30 | Overload protecting and weighing protector of construction lifter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201694705U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530673A (en) * | 2011-12-26 | 2012-07-04 | 许宾 | Digital pulling force alarm device |
| CN102583125A (en) * | 2011-12-26 | 2012-07-18 | 许宾 | Electronic tension alarm device |
| CN102887403A (en) * | 2012-10-19 | 2013-01-23 | 南宁科拓自动化设备有限公司 | Construction hoist integrated controller |
| CN103663028A (en) * | 2013-12-18 | 2014-03-26 | 启东大同电机有限公司 | Flexible connection device with column pressure weighing function of construction hoist drive mechanism |
| CN104627768A (en) * | 2014-12-09 | 2015-05-20 | 廊坊凯博建设机械科技有限公司 | Construction elevator safety protection device and method |
| CN104748900A (en) * | 2013-12-30 | 2015-07-01 | 山东省建筑科学研究院 | Detection and monitoring system and calculation method for load weight, bending moment and torque of double-layer operation platform in building construction |
| CN112985667A (en) * | 2021-02-23 | 2021-06-18 | 安徽送变电工程有限公司 | Plate-ring type tension sensor, wireless detection system and method based on plate-ring type tension sensor |
-
2010
- 2010-06-30 CN CN2010202429042U patent/CN201694705U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530673A (en) * | 2011-12-26 | 2012-07-04 | 许宾 | Digital pulling force alarm device |
| CN102583125A (en) * | 2011-12-26 | 2012-07-18 | 许宾 | Electronic tension alarm device |
| CN102530673B (en) * | 2011-12-26 | 2014-09-03 | 许宾 | Digital pulling force alarm device |
| CN102887403A (en) * | 2012-10-19 | 2013-01-23 | 南宁科拓自动化设备有限公司 | Construction hoist integrated controller |
| CN102887403B (en) * | 2012-10-19 | 2015-07-15 | 南宁科拓自动化设备有限公司 | Construction hoist integrated controller |
| CN103663028A (en) * | 2013-12-18 | 2014-03-26 | 启东大同电机有限公司 | Flexible connection device with column pressure weighing function of construction hoist drive mechanism |
| CN104748900A (en) * | 2013-12-30 | 2015-07-01 | 山东省建筑科学研究院 | Detection and monitoring system and calculation method for load weight, bending moment and torque of double-layer operation platform in building construction |
| CN104748900B (en) * | 2013-12-30 | 2016-12-07 | 山东省建筑科学研究院 | Construction bilayer operating platform weight moment of flexure moment of torsion Inspection and monitoring system and computational methods |
| CN104627768A (en) * | 2014-12-09 | 2015-05-20 | 廊坊凯博建设机械科技有限公司 | Construction elevator safety protection device and method |
| CN112985667A (en) * | 2021-02-23 | 2021-06-18 | 安徽送变电工程有限公司 | Plate-ring type tension sensor, wireless detection system and method based on plate-ring type tension sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20190630 |