CN2709402Y - Microcomputer overload protection device for building construction elevator - Google Patents
Microcomputer overload protection device for building construction elevator Download PDFInfo
- Publication number
- CN2709402Y CN2709402Y CN 200420071777 CN200420071777U CN2709402Y CN 2709402 Y CN2709402 Y CN 2709402Y CN 200420071777 CN200420071777 CN 200420071777 CN 200420071777 U CN200420071777 U CN 200420071777U CN 2709402 Y CN2709402 Y CN 2709402Y
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- CN
- China
- Prior art keywords
- cage
- micro computer
- overload protection
- protection device
- load limiter
- 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
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The utility model provides a microcomputer overload protection device for a building construction elevator, belonging to the technical field of hoisting machinery protection device. The microcomputer overload protection device for a building construction elevator can solve the technical problems that an overload protection device is arranged in the traction system of the suspension cage of the building construction elevator, so that safety accidents due to the overload of the suspension cage can be avoided. A force sensor is arranged between the suspension ring of the suspension cage and a steel wire rope, the output end of the force sensor is connected with the input end of a microcomputer weight load limiter which is mounted on the suspension cage through a signal wire, and the output end of the microcomputer weight load limiter is connected in series with a cable hoist control main circuit in a control platform through a conducting wire. The microcomputer overload protection device for a building construction elevator is applicable in particular to the overload protection of various building construction elevators, and also applicable for the overload protection of various hoisting machinery.
Description
Technical field
The utility model relates to elevator machinery fender guard technical field, the micro computer overload protection device that especially a kind of building construction hoist is used.
Background technology
At present, various building construction hoists, as traction-type construction lifting machine, winding type building hoist etc., its steel rope is terminal directly to be fastenedly connected with the cage top, in work progress, when the goods of cage delivery overloads, can cause wire cable rupture, cage be fallen, thereby serious safety misadventure takes place.
Summary of the invention
The technical problems to be solved in the utility model is to be provided with overload protection device in the cage traction system of building construction hoist, with the safety misadventure of avoiding taking place because of the cage overload.
The technical solution that the utility model proposed is such: the micro computer overload protection device that a kind of building construction hoist is used; the frame 5 that comprises building construction hoist; cage 10; cage head suspension ring 7; top block 4; steel rope 3; winch 2; control desk 1; cage 10 is along frame 5 guide rail up-and-down movements; and by steel rope 3; top block 4 is connected the state of kinematic motion of control desk winch 2 with the reel of winch 2; between described cage head suspension ring 7 and steel rope 3, force gauge 6 is housed; the mouth of this force gauge 6 links to each other with the input end of micro computer weight load limiter 9 in being contained in cage 10 by signal wire (SW) 8, and the mouth of micro computer weight load limiter 9 is controlled major loop and is connected in series by the lead 11 interior winch that links to each other with control desk 1.The lead 11 that described micro computer weight load limiter 9 mouths are connect is walked around the guide roller 12 that hangs on cage 10 belows and is passed in winch 2 main control loops that are connected in series control desk 1 on the frame 5 behind the middle part.Another kind of mode be the mouth of micro computer weight load limiter 9 bottom that is connected to lead 11 and passes cage 10 directly with control desk 1 in winch control major loop and contact mutually.Another mode is that the mouth of micro computer weight load limiter 9 is connected in lead 11 and the top by frame 5 and the control desk 1 winch control major loop and contacts mutually.Described micro computer weight load limiter 9 is formed by measuring amplifying circuit, analog-digital converter circuit, micro controller system, digital-to-analog converter, actuating unit and weight display; Force gauge 6 output signals are imported the A-D converter input end through measuring after amplifying circuit amplifies, its mouth inserts the micro controller system signal input part, one road input display shows the actual weight of cage goods after computing, another road exports the digital-to-analog converter input end to, and its mouth inserts in the control loop of actuating unit.
Micro computer weight load limiter 9 judges by the internal circuit of self whether the load of cage 10 is overweight.When load weight reach rated value 90% the time, micro computer weight load limiter 9 can drive the pre-alarm devices, shows that promptly the goods of cage 10 will reach rated weight.When overweight, micro computer weight load limiter 9 output signals open circuit winch control major loop, and winch 2 quits work, and drives overload alarm work, reaches the purpose of overload protection.
Also adopted guide roller 12 to come folding and unfolding lead 11 in the technical solution that the utility model proposed.It is fixing and receive in the control desk 1 near the middle part of frame 5 that the lead 11 that micro computer weight load limiter 9 mouths are connect is walked around guide roller 12, like this, will make lead 11 follow the lifting of cage 10 and folding and unfolding, avoid stroking and lead 11 is played pendulum or damage because of the collision of building site foreign material because of wind.
Compared with prior art; the utlity model has following beneficial effect: owing to adopted micro computer weight load limiter and force gauge to match; thereby the control accuracy height, be active in one's movements, compactness rational in infrastructure, easy for installation, the cost cost is low; and can protect the lead that connects micro computer weight load limiter and control desk not to be damaged effectively, thereby improve its functional reliability greatly.It is applicable to that not only building construction hoist makes overload protection, also is applicable to that other various elevator machineries make overload protection simultaneously.
Description of drawings
Fig. 1 is the building construction hoist mounting structure scheme drawing that the micro computer overload protection device is housed of an embodiment of the utility model.It has adopted guide roller folding and unfolding conductor structure.
Fig. 2 is the mounting structure scheme drawing of the building construction hoist shown in Figure 1 mode that adopts another kind of folding and unfolding lead.
Fig. 3 is the mounting structure scheme drawing of the building construction hoist shown in Figure 1 mode that adopts the third folding and unfolding lead.
Fig. 4 is the utility model micro computer weight load limiter electricity functional-block diagram.
The specific embodiment
By following embodiment the utility model is further elaborated.
Referring to shown in Figure 1, force gauge 6 one ends are fixed on the steel rope 3, the other end is fixed on the suspension ring 7 of cage head, weight signal in the cage 10 passes to the input end of micro computer weight load limiter 9 by force gauge 6, micro computer weight load limiter 9 is by CPU, modulus---D/A converting circuit to the input weight signal gather, storage, computing, judge whether cage load overweight.Load weight in cage 10 within the limits prescribed, the relay contact of the actuating unit of micro computer weight load limiter 9 is normally closed, and serial connection goes into the electrical control major loop of winch 2, makes the winch normal operation; When the cargo weight in the cage reach setting weight 90% the time, the actuating unit of micro computer weight load limiter 9 can drive the pre-alarm device and report to the police for three seconds, shows that the goods in the cage will reach specified setting weight.When the goods in the cage was overweight, micro computer weight load limiter 9 can drive overload alarms, and the relay normally closed contact of actuating unit can disconnect, thereby has disconnected the control major loop of winch 2, and cage 10 can not lifting, reached the purpose of overload protection.
Referring to shown in Figure 2, the folding structure of lead 11 also can directly link to each other with control desk 1 with the bottom of lead 11 by cage 10 at the mouth of micro computer weight load limiter 9.
Referring to shown in Figure 3, the folding structure of another kind of lead 11 also can link to each other with control desk 1 with the top of lead 11 through frame 5 at the mouth of micro computer weight load limiter 9.
Fig. 4 is the electric functional-block diagram of micro computer weight load limiter 9; the signal of force gauge 6 outputs; amplify through measuring amplifying circuit; accepted by micro controller system through the analog to digital conversion circuit conversion again; the Micro Controller Unit (MCU) driving display circuit; make it show the actual weight of load in the cage; micro controller system is judged cargo weight in the cage 10 according to the signal of force gauge 6; when its cargo weight reaches 90% or when overweight; micro controller system is changed data through D/A converting circuit; and being passed to actuating unit, the dynamo-electric control of elevator major loop is logical in control pre-alarm device and/or overload alarm and/or the control desk; break, reach the purpose of overload protection.
Claims (5)
1; the micro computer overload protection device that a kind of building construction hoist is used; the frame (5) that comprises building construction hoist; cage (10); cage head suspension ring (7); top block (4); steel rope (3); winch (2); control desk (1); cage (10) is along frame (5) guide rail up-and-down movement; and by steel rope (3); top block (4) is connected with the reel of winch (2); the state of kinematic motion of control desk (1) control winch (2); it is characterized in that: between described cage head suspension ring (7) and steel rope (3), force gauge (6) is housed; the mouth of this force gauge (6) links to each other by the input end of signal wire (SW) (8) the micro computer weight load limiter (9) interior with being contained in cage (10), and the mouth of micro computer weight load limiter (9) is connected in series by lead (11) and the interior winch of control desk (1) (2) control major loop.
2, micro computer overload protection device according to claim 1 is characterized in that: described micro computer weight load limiter (9) lead (11) that mouth connect is walked around the guide roller (12) that hangs on cage (10) below and is passed and is connected in series in the interior winch of control desk (1) (2) the control major loop after frame (5) goes up the middle part.
3, micro computer overload protection device according to claim 1 is characterized in that: the bottom that the mouth of micro computer weight load limiter (9) is connected to lead (11) and passes cage (10) is directly controlled major loop with the interior winch of control desk (1) (2) and is contacted mutually.
4, micro computer overload protection device according to claim 1 is characterized in that: contact mutually with the interior winch of control desk (1) (2) control major loop in the top that the mouth of micro computer weight load limiter (9) is connected to lead (11) and passes frame (5).
5, micro computer overload protection device according to claim 1 is characterized in that: described micro computer weight load limiter (9) is formed by measuring amplifying circuit, analog-digital converter circuit, micro controller system, digital-to-analog converter, actuating unit and weight display; Force gauge (6) output signal is imported the A-D converter input end through measuring after amplifying circuit amplifies, its mouth inserts the micro controller system signal input part, one road input display shows the actual weight of cage goods after computing, another road exports the digital-to-analog converter input end to, and its mouth inserts in the control loop of actuating unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420071777 CN2709402Y (en) | 2004-07-19 | 2004-07-19 | Microcomputer overload protection device for building construction elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420071777 CN2709402Y (en) | 2004-07-19 | 2004-07-19 | Microcomputer overload protection device for building construction elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2709402Y true CN2709402Y (en) | 2005-07-13 |
Family
ID=34852618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420071777 Expired - Fee Related CN2709402Y (en) | 2004-07-19 | 2004-07-19 | Microcomputer overload protection device for building construction elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2709402Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104003264A (en) * | 2014-04-30 | 2014-08-27 | 成都科创佳思科技有限公司 | Construction hoist for building |
| CN106188408A (en) * | 2016-08-05 | 2016-12-07 | 安徽新涛光电科技有限公司 | High transparent high resiliency lucite and preparation method thereof |
| CN108946376A (en) * | 2018-07-27 | 2018-12-07 | 芜湖优诺信息科技有限公司 | A kind of conveying device |
| CN109353920A (en) * | 2018-11-30 | 2019-02-19 | 徐州昊意工程机械科技有限公司 | A kind of portable hoistable platform |
| CN112499416A (en) * | 2019-09-16 | 2021-03-16 | 湖南中联重科建筑起重机械有限责任公司 | Elevator control system, equipment and storage medium based on information feedback |
-
2004
- 2004-07-19 CN CN 200420071777 patent/CN2709402Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104003264A (en) * | 2014-04-30 | 2014-08-27 | 成都科创佳思科技有限公司 | Construction hoist for building |
| CN106188408A (en) * | 2016-08-05 | 2016-12-07 | 安徽新涛光电科技有限公司 | High transparent high resiliency lucite and preparation method thereof |
| CN108946376A (en) * | 2018-07-27 | 2018-12-07 | 芜湖优诺信息科技有限公司 | A kind of conveying device |
| CN109353920A (en) * | 2018-11-30 | 2019-02-19 | 徐州昊意工程机械科技有限公司 | A kind of portable hoistable platform |
| CN112499416A (en) * | 2019-09-16 | 2021-03-16 | 湖南中联重科建筑起重机械有限责任公司 | Elevator control system, equipment and storage medium based on information feedback |
| CN112499416B (en) * | 2019-09-16 | 2023-03-21 | 湖南中联重科建筑起重机械有限责任公司 | Elevator control system, equipment and storage medium based on information feedback |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |