CN103832927A - Load protection system based on proximity sensors and application thereof - Google Patents
Load protection system based on proximity sensors and application thereof Download PDFInfo
- Publication number
- CN103832927A CN103832927A CN201410061376.3A CN201410061376A CN103832927A CN 103832927 A CN103832927 A CN 103832927A CN 201410061376 A CN201410061376 A CN 201410061376A CN 103832927 A CN103832927 A CN 103832927A
- Authority
- CN
- China
- Prior art keywords
- protection system
- load protection
- system based
- proximity sensors
- proximity sensor
- 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.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 239000000725 suspension Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000013459 approach Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Landscapes
- Control And Safety Of Cranes (AREA)
Abstract
The invention relates to a load protection system based on proximity sensors. The load protection system is provided with two sets of disk spring mechanisms and six proximity sensors, wherein each set of disk spring mechanisms is provided with three proximity sensors, and two sets of systems are mounted on diagonal points of lifting cable wire fixing points at two sides of a trolley frame 1; the sensors are connected with a monitoring system in a cab. The invention further provides application of the load protection system based on proximity sensors. The load protection system based on the proximity sensors and the application of the load protection system have the advantages of overcoming the complicated and unstable detection situations of the existing sensors, simplifying the detection process under the premise of no reduction of the safety protection level by using mechanical disk springs which replace the existing analog weight sensors based on matching with the switch signal proximity sensors, reducing the intermediate links and potential failure points and improving the system stability.
Description
[technical field]
The present invention relates to Port Container Cranes field, specifically, is a kind of load protection system and application thereof based on proximity sensor.
[background technology]
In existing design, for lifting mechanism, consider for the factor such as safety, added rush to summit spacing, weight sensor and overweight killer.
Current overweight detection is substantially all to utilize weight sensor, after being arranged on the sensor pressurized on stress point, produce analog signals output, amplify transmission, the links such as conversion through signal, finally calculate by PLC program and judge whether lifting mechanism has overload or unbalance loading situation, because testing process is too loaded down with trivial details, intermediate link is too much, and analog signals transmission is subject to external interference, add weight sensor itself and easily damage, so the reliability and stability of testing result are poor.
Chinese patent CN202099019U discloses a kind of tackling system warning device of weighing, but its adopts pressure sensor still, stability and safety are not high.
At present, a kind of system stability load protection system based on proximity sensor high, easy to detect, that be applied to accurately Port Container Cranes field yet there are no relevant report.
[summary of the invention]
The object of the invention is to overcome deficiency of the prior art, the load protection system based on proximity sensor that a kind of system stability is high, easy to detect, be applied to accurately Port Container Cranes field is provided.
A further object of the present invention is that a kind of application of the load protection system based on proximity sensor is provided.
For achieving the above object, the technical scheme that the present invention takes is:
A kind of load protection system based on proximity sensor; be provided with 2 cover disk spring mechanisms and 6 proximity sensors; Mei Tao disk spring mechanism is equipped with 3 proximity sensors; Mei Tao disk spring mechanism is equipped with 3 proximity sensors; two cover systems be mounted respectively trolley frame 1 both sides hoist rope attachment point to angle point on, described sensor is connected with the monitored control system in driver's cab.
Described disk spring mechanism is arranged on suspension bracket pull bar upside, with pull bar concentric.
Described proximity sensor is arranged on disk spring mechanism periphery, partially suspension bracket outside.
3 described proximity sensors are installed at various height.
Described proximity sensor is provided with adjustable-height structure.
For realizing above-mentioned second object, the technical solution used in the present invention is: a kind of load protection system based on proximity sensor, and in the application in Port Container Cranes field.
The invention has the advantages that:
1, overcome the loaded down with trivial details and unsettled detected status of moment sensor;
2, adopt mechanical belleville spring, coordinated the proximity sensor of switching value to replace existing analog quantity weight sensor, not reducing under the prerequisite of safety precaution rank, simplified testing process;
The trouble point of 3, having reduced intermediate link and may exist, has improved the stability of system.
[brief description of the drawings]
Accompanying drawing 1 is the installation site schematic diagram of a kind of load protection system based on proximity sensor of the present invention.
Accompanying drawing 2 is three-view diagrams of suspension bracket.
Accompanying drawing 3 is suspension bracket A-A cutaway views.
Accompanying drawing 4 is normal axomometric drawings of suspension bracket.
Accompanying drawing 5 is monitoring principle block diagrams of a kind of load protection system based on proximity sensor of the present invention.
[detailed description of the invention]
Below in conjunction with embodiment and with reference to accompanying drawing, the invention will be further described.
The Reference numeral and the component part that in accompanying drawing, relate to are as follows:
1. trolley frame 11. steel rope attachment points one
12. steel rope attachment point 2 13. steel rope attachment points three
14. steel rope attachment point 4 2. suspension brackets
21. sensor one 22. sensors two
23. sensor 3 24. pull bars
25. disk spring mechanisms
Refer to Fig. 1, Figure 1 shows that the installation site schematic diagram of a kind of load protection system based on proximity sensor of the present invention.The described load protection system based on proximity sensor is provided with 2 cover disk spring mechanisms and 6 proximity sensors.Mei Tao disk spring mechanism is equipped with 3 proximity sensors, two cover systems be mounted respectively trolley frame 1 both sides hoist rope attachment point to angle point on (steel rope attachment point 1 and steel rope attachment point 3 13 in seeing Fig. 1), described sensor is connected with the monitored control system in driver's cab.
Refer to Fig. 2, Fig. 3 and Fig. 4, Figure 2 shows that the three-view diagram (front view, birds-eye view, right elevation) of suspension bracket, Figure 3 shows that suspension bracket A-A cutaway view, the normal axomometric drawing that Fig. 4 is suspension bracket.Described disk spring mechanism 25 is arranged on pull bar 24 upsides, with pull bar 24 concentrics, by pulling pull bar 24 to exert pressure to disk spring mechanism 25.Described proximity sensor is arranged on disk spring mechanism periphery, suspension bracket outside partially, and totally 3, i.e. sensor 1, sensor 2 22, sensor 3 23, installs at various height respectively, and function is respectively to detect approaching overload, overload and unbalance loading.Its principle of work is: in the time that steel rope has hung load, there is deformation in belleville spring mechanism 25, pull bar 24 is left behind, sensor detects displacement, 3 proximity sensors are provided with Height Adjustable structure, and setting height(from bottom) can be adjusted respectively according to actual loading situation, to reach different testing goals, under normal circumstances, order from low to high successively: approach overload-overload-unbalance loading.
Refer to Fig. 5, Figure 5 shows that the monitoring principle block diagram of a kind of load protection system based on proximity sensor of the present invention.Because Boolean value output sensor only has " leading to " and " breaking " two states, and corresponding it feed back to driver's cab PLC control unit also just only have " 1 " and " 0 " two signals, make in the time that overweight or unbalance loading fault occur, crane control system (PLC control unit) can be reacted rapidly.On crane monitoring system (driver's cab touch-screen), be to reflect unbalance loading/not unbalance loading again, two states that overload/do not overload, so that driver can make expeditious measures simultaneously.
Make reference with 40 tons of standard hoisting capacities, general unbalance loading is spacing is arranged on 46 tons of actions, overloads spacing 42 tons of actions, approaches overload spacing 38 tons of actions.In control logic, the overload warning that overloads/approach needs the spacing action simultaneously in both sides, and unbalance loading warning only needs a spacing action for any side.
For overcoming the loaded down with trivial details and unsettled detected status of moment sensor, this patent has adopted mechanical belleville spring, coordinate the proximity sensor of switching value to replace existing analog quantity weight sensor, do not reducing under the prerequisite of safety precaution rank, simplify testing process, the trouble point of cutting down the number of intermediate links and may exist, has improved the stability of system.
In the design process of crane control system; different with the requirement to level of security in conjunction with the application scenario of actual product; can be chosen in original analog sensor system to increase and join this cover and approach on-off system, with real multiple protective (hardware protection, fast response).Also can use separately this socket load protection system, and obtain real-time load weight reading by the torque-feedback of frequency converter, reduce device cost, improve system reliability.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvement and supplement, these improvement and the supplementary protection scope of the present invention that also should be considered as.
Claims (6)
1. the load protection system based on proximity sensor; it is characterized in that; be provided with 2 cover disk spring mechanisms and 6 proximity sensors; Mei Tao disk spring mechanism is equipped with 3 proximity sensors; Mei Tao disk spring mechanism is equipped with 3 proximity sensors; two cover systems be mounted respectively trolley frame 1 both sides hoist rope attachment point to angle point on, described sensor is connected with the monitored control system in driver's cab.
2. the load protection system based on proximity sensor according to claim 1, is characterized in that, described disk spring mechanism is arranged on suspension bracket pull bar upside, with pull bar concentric.
3. the load protection system based on proximity sensor according to claim 1, is characterized in that, described proximity sensor is arranged on disk spring mechanism periphery, partially suspension bracket outside.
4. the load protection system based on proximity sensor according to claim 1, is characterized in that, 3 described proximity sensors are installed at various height.
5. the load protection system based on proximity sensor according to claim 1, is characterized in that, described proximity sensor is provided with adjustable-height structure.
6. according to the arbitrary described load protection system based on proximity sensor of claim 1-5, in the application in Port Container Cranes field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410061376.3A CN103832927A (en) | 2014-02-24 | 2014-02-24 | Load protection system based on proximity sensors and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410061376.3A CN103832927A (en) | 2014-02-24 | 2014-02-24 | Load protection system based on proximity sensors and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103832927A true CN103832927A (en) | 2014-06-04 |
Family
ID=50796877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410061376.3A Pending CN103832927A (en) | 2014-02-24 | 2014-02-24 | Load protection system based on proximity sensors and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103832927A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105540474A (en) * | 2016-01-21 | 2016-05-04 | 润邦卡哥特科工业有限公司 | Steel wire rope rotation preventing device applied to container crane |
| GB2549475A (en) * | 2016-04-18 | 2017-10-25 | Joerns Healthcare Ltd | Load-determining patient ceiling-hoist carriage, bed apparatus, patient support coupling and load cell |
| CN109643625A (en) * | 2016-09-02 | 2019-04-16 | 伊顿智能动力有限公司 | For loading the replaceable electrical protection systems of lower equipment |
| USD854275S1 (en) | 2016-10-13 | 2019-07-16 | Joerns Healthcare Limited | Combined patient ceiling-hoist trolley and motor unit |
| TWI723678B (en) * | 2019-12-13 | 2021-04-01 | 泰川機械股份有限公司 | Load monitoring system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0812256A (en) * | 1994-06-29 | 1996-01-16 | Hitachi Constr Mach Co Ltd | Crane load calculator |
| CN2367592Y (en) * | 1998-12-27 | 2000-03-08 | 阎泰东 | Weight-number displaying multifunction controlling instrument for crane |
| DE10224323A1 (en) * | 2002-05-31 | 2004-01-08 | MAN TAKRAF Fördertechnik GmbH | Method for incorporating load monitors in crane has the monitors in a compact mounting between the wheel supports and the crane chassis |
| CN201961977U (en) * | 2011-01-27 | 2011-09-07 | 北京东方威特称重设备系统有限公司 | Weight unbalance-loading detection system for container of gantry crane |
| CN202047632U (en) * | 2011-05-03 | 2011-11-23 | 青岛德盛利汽车检测设备有限公司 | Car lifting frame positioning and weighing system |
| CN202848900U (en) * | 2012-10-12 | 2013-04-03 | 南通润邦重机有限公司 | Adjustable type safety protection device for proximity sensor of ship crane |
| CN203806981U (en) * | 2014-02-24 | 2014-09-03 | 润邦卡哥特科工业有限公司 | Proximity-sensor-based load protection system |
-
2014
- 2014-02-24 CN CN201410061376.3A patent/CN103832927A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0812256A (en) * | 1994-06-29 | 1996-01-16 | Hitachi Constr Mach Co Ltd | Crane load calculator |
| CN2367592Y (en) * | 1998-12-27 | 2000-03-08 | 阎泰东 | Weight-number displaying multifunction controlling instrument for crane |
| DE10224323A1 (en) * | 2002-05-31 | 2004-01-08 | MAN TAKRAF Fördertechnik GmbH | Method for incorporating load monitors in crane has the monitors in a compact mounting between the wheel supports and the crane chassis |
| CN201961977U (en) * | 2011-01-27 | 2011-09-07 | 北京东方威特称重设备系统有限公司 | Weight unbalance-loading detection system for container of gantry crane |
| CN202047632U (en) * | 2011-05-03 | 2011-11-23 | 青岛德盛利汽车检测设备有限公司 | Car lifting frame positioning and weighing system |
| CN202848900U (en) * | 2012-10-12 | 2013-04-03 | 南通润邦重机有限公司 | Adjustable type safety protection device for proximity sensor of ship crane |
| CN203806981U (en) * | 2014-02-24 | 2014-09-03 | 润邦卡哥特科工业有限公司 | Proximity-sensor-based load protection system |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105540474A (en) * | 2016-01-21 | 2016-05-04 | 润邦卡哥特科工业有限公司 | Steel wire rope rotation preventing device applied to container crane |
| CN105540474B (en) * | 2016-01-21 | 2019-04-26 | 润邦卡哥特科工业有限公司 | A kind of steel wire rotation resistant device applied to container crane |
| GB2549475A (en) * | 2016-04-18 | 2017-10-25 | Joerns Healthcare Ltd | Load-determining patient ceiling-hoist carriage, bed apparatus, patient support coupling and load cell |
| GB2555652A (en) * | 2016-04-18 | 2018-05-09 | Joerns Healthcare Ltd | Load-determining patient ceiling-hoist carriage, bed apparatus, patient support coupling and load cell |
| CN109643625A (en) * | 2016-09-02 | 2019-04-16 | 伊顿智能动力有限公司 | For loading the replaceable electrical protection systems of lower equipment |
| USD854275S1 (en) | 2016-10-13 | 2019-07-16 | Joerns Healthcare Limited | Combined patient ceiling-hoist trolley and motor unit |
| TWI723678B (en) * | 2019-12-13 | 2021-04-01 | 泰川機械股份有限公司 | Load monitoring system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103832927A (en) | Load protection system based on proximity sensors and application thereof | |
| US9156663B2 (en) | Device and method for ascertaining and monitoring an assembled counterweight on a crane | |
| CN203295034U (en) | Lifting hook, winding plant, crane and crane deviation early-warning device | |
| CN201762043U (en) | Safety monitoring device of tower crane with two horizontal arms | |
| CN104842855B (en) | Vehicle and its overload warning method and overload warning system | |
| CN204405242U (en) | A kind of belt wheel side-compression cable tension real-time detection apparatus | |
| CN102807170A (en) | Crane and synchronous control device and method of double winches | |
| CN203806981U (en) | Proximity-sensor-based load protection system | |
| CN202807906U (en) | Anti-collision control system of boom, stacker, reclaimer and stacker-reclaimer | |
| CN201980874U (en) | Crane monitoring system and crane | |
| CN102633197A (en) | Torque limitation alarm device for straight-arm-type lorry-mounted crane | |
| CN104555739A (en) | Tower crane monitoring system | |
| CN104150362B (en) | For operation dynamic monitoring system and the monitoring method of mechanical type twin rope grab | |
| CN212154102U (en) | Intelligent safety type suspension device | |
| KR20160043875A (en) | Crane monitoring apparatus | |
| CN202864789U (en) | Crane and double-winch synchronous control device thereof | |
| CN202796749U (en) | Apparatus and system for controlling relay | |
| CN207976761U (en) | Cargo check weighing device on a kind of stacker loading platforms | |
| CN102866005A (en) | Safety anti-drop detection device for part at bottom of locomotive | |
| CN112027917B (en) | Overload-preventing intelligent gateway of hoisting equipment | |
| CN109573838A (en) | Method and device for monitoring jacking state of tower crane and tower crane | |
| CN203338070U (en) | Movable double-container hoisting tool protection control system | |
| CN202897712U (en) | Unbalance loading and overloading detection device for building hoist | |
| CN108131019A (en) | A kind of discharging platform construction safety system | |
| CN207483161U (en) | The upending frame that a kind of band weighs and alarms |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140604 |