CN204416828U - A kind of drum-type towing machine band-type brake monitoring device - Google Patents
A kind of drum-type towing machine band-type brake monitoring device Download PDFInfo
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- CN204416828U CN204416828U CN201520082532.4U CN201520082532U CN204416828U CN 204416828 U CN204416828 U CN 204416828U CN 201520082532 U CN201520082532 U CN 201520082532U CN 204416828 U CN204416828 U CN 204416828U
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Abstract
The utility model discloses a kind of drum-type towing machine band-type brake monitoring device, the pressure sensor, signal processor and the display module that comprise power circuit and be connected with power circuit respectively; Pressure sensor is arranged on brake control lever for gathering brake control lever STRESS VARIATION signal; The STRESS VARIATION signal of employing is input in signal processor and carries out data processing and obtain towing machine lock torque monitor signal by pressure sensor; Monitor signal unit is input to display module and shows.The utility model adopts strain-gauge to gather brake control lever STRESS VARIATION data, then judges whether towing machine lock torque meets operating needs according to STRESS VARIATION.This device can indirect monitoring towing machine lock torque; And easy for installation, use reliable, easy to maintenance.Improve the safety performance of towing machine; Can not have any impact to towing machine oad, ensure that the strength character of complete machine.
Description
Technical field
The present invention relates to field of elevator monitoring, particularly a kind of elevator traction machine band-type brake control monitor unit.
Background technology
Along with the high speed development of modern architecture industry, widely using of elevator, it is also proposed higher requirement to the safety performance of lift product.Towing machine is as the power plant of elevator, and its safety performance is particularly important.
Current drum-type traction machine brake device is primarily of a magnet stopper, and two brake control levers, two retarding springs form.Reach band-type brake effect by retarding spring compression brake arm during power-off, back down brake control lever to reach the effect that declutches by calutron during energising.And the monitoring of band-type brake state mainly contains two mechanical type micro-switchs has come, monitored the band-type brake state of towing machine by the make-and-break signal of micro-switch.
There is following defect in this mechanism: whether the lock torque of monitoring towing machine that 1, can not be direct or indirect reaches operating needs.2, the actuating length of micro-switch easily produces error, needs to revise in time.3 easily send a wrong signal once micro-switch breaks down.Above defect greatly reduces the safety performance of towing machine, and this is obviously do not catch up with the more and more higher paces of elevator device safety; Therefore a kind of drum-type towing machine band-type brake monitoring device is needed.
Summary of the invention
In view of this, technical matters to be solved by this invention is to provide a kind of drum-type towing machine band-type brake monitoring device.
The object of the present invention is achieved like this:
A kind of drum-type towing machine band-type brake monitoring device provided by the invention, comprises power circuit, pressure sensor, signal processor and display module; Described pressure sensor is arranged on brake control lever for gathering brake control lever STRESS VARIATION signal; The STRESS VARIATION signal of employing is input in signal processor and carries out data processing and obtain towing machine lock torque monitor signal by described pressure sensor; Described monitor signal unit is input to display module and shows; Described power circuit is connected with signal processor.
Further, described pressure sensor is strain-gauge; Described strain-gauge is arranged on the strain-gauge carrier that is arranged on brake control lever.
Further, also comprise filter circuit, described filter circuit is arranged between pressure sensor and signal processor.
Further, described power circuit and signal processor and display module are arranged on circuit card; Described circuit card is arranged in elevator control cabinet.
Further, described strain-gauge carrier adopts 2024-T4 High Performance aluminium to make.
Further, described signal processor comprises amplifying circuit, A/D change-over circuit, data processing module and output module; Described amplifying circuit is connected with filter circuit; Described amplifying circuit is connected with A/D change-over circuit; Described A/D change-over circuit is connected with data processing module; Described data processing module is connected with output module; Described data processing module is by comparing STRESS VARIATION signal and predetermined threshold value obtains towing machine lock torque monitor signal.
Beneficial effect of the present invention is: the present invention adopts strain-gauge to gather brake control lever STRESS VARIATION data, by the final output switching signal of internal system computing; By the STRESS VARIATION detecting brake control lever, this device judges whether towing machine lock torque meets operating needs.Be a kind of can the band-type brake monitoring device of indirect monitoring towing machine lock torque; This device not only has the basic function of original mechanical type micro-switch; Can also indirectly monitor towing machine lock torque and easy for installation, use reliable, easy to maintenance.After adopting above device, compared with existing apparatus, this device has the following advantages: 1, owing to can indirectly monitor towing machine lock torque, so the safety performance of towing machine is compared originally the raising of matter; 2, the present invention can show by display module the towing machine lock torque that indirect detection arrives intuitively; 3, only need check when periodical maintenance shown numerical value whether with demarcate when dispatching from the factory that there is any discrepancy, simple to operation; 4, this apparatus structure is simple, can not have any impact, ensure that the strength character of complete machine to towing machine oad.
Accompanying drawing explanation
In order to make the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail, wherein:
Fig. 1 is drum-type towing machine band-type brake monitoring device functional block diagram.
Detailed description of the invention
Hereinafter with reference to accompanying drawing, the preferred embodiments of the present invention are described in detail.Should be appreciated that preferred embodiment only in order to the present invention is described, instead of in order to limit the scope of the invention.
Embodiment 1
As shown in the figure, a kind of drum-type towing machine band-type brake monitoring device provided by the invention, comprises power circuit, pressure sensor, signal processor and display module; Described pressure sensor is arranged on brake control lever for gathering brake control lever STRESS VARIATION signal; The STRESS VARIATION signal of employing is input in signal processor and carries out data processing and obtain towing machine lock torque monitor signal by described pressure sensor; Described monitor signal unit is input to display module and shows; Described power circuit is connected with signal processor.
Described pressure sensor is strain-gauge; Described strain-gauge is arranged on the strain-gauge carrier that is arranged on brake control lever.
Also comprise filter circuit, described filter circuit is arranged between pressure sensor and signal processor.
Described power circuit and signal processor and display module are arranged on circuit card; Described circuit card is arranged in elevator control cabinet.
Described strain-gauge carrier adopts 2024-T4 High Performance aluminium to make.
Described signal processor comprises amplifying circuit, A/D change-over circuit, data processing module and output module; Described amplifying circuit is connected with filter circuit; Described amplifying circuit is connected with A/D change-over circuit; Described A/D change-over circuit is connected with data processing module; Described data processing module is connected with output module; Described data processing module is by comparing STRESS VARIATION signal and predetermined threshold value obtains towing machine lock torque monitor signal.
Embodiment 2
The difference of the present embodiment and embodiment 1 is only:
A kind of drum-type towing machine band-type brake monitoring device that the present embodiment provides, its principle is by special bonding agent by strain-gauge; The adhesives that the present embodiment provides adopts aggretion type lining cement as the material connecting strain-gauge and carrier (matrix).Mainly be divided into two classes: 1: epoxy resin adhesive.2:502 glue.The former main component and ratio are: epoxy resin 100: ethylene diamine 7: dibutyl ester 5.The latter's main component is: alpha-cyanoacrylate second fat adds a small amount of plasticizer.The glue composition and the ratio that are used as strain-gauge insulation covering are in addition: epoxy resin 100: Versamid 100.Being bonded in closely on carrier and by carrier is fixed on generation mechanics strain matrix (brake control lever), when the stressed generation STRESS VARIATION of matrix, strain-gauge also produces deformation together, the resistance of strain-gauge is changed, thus make to be added in ohmically voltage and change, this voltage that changes also is amplified by follow-up amplifier, by A/D change-over circuit, voltage signal is converted to digital signal, then is transferred to treatment circuit and finally shows and signal exports.Device mainly comprises feed circuit, strain-gauge, strain-gauge carrier, amplifying circuit, A/D change-over circuit, data processing module, signal output module.Described strain-gauge to be attached on strain-gauge carrier and strain-gauge carrier is fixed on the position that brake control lever stress comparatively concentrates, and other described devices are integrated on one piece of circuit card.
The strain-gauge that the present embodiment provides also can directly be attached on matrix, but because of paster technique require higher, be generally attached on carrier by the strain-gauge manufacturer of specialty, and then carrier be fixed on matrix by fastener.Carrier will have enough reserved areas for strain gauge adhesion, has sufficient space to install for fastener outside paster face.Carrier generally adopts counter stress to change than more sensitive high performance alloys material, and the present embodiment adopts 2024-T4 import aluminium.
Use procedure is as follows: after the installation of strain-gauge carrier, feed circuit are powered to package unit, the data respectively during collection towing machine band-type brake and when declutching; The cardinal principle of the image data of the present embodiment is: 1. successively sampling sensor unloaded, hang 10kg, the millivolt value of 20kg standard test weight, these 3 data write micro controller systems.2. in actual use, the millivolt value sampled is obtained tested force value by two segmentation (0-10kg and 10-20kg) linear interpolation arithmetics.Actual acquired data method is: a moment reaches the towing machine of operating needs, and when towing machine band-type brake, matrix (brake control lever) is stressed, now can obtain a numerical value A.When towing machine declutches, matrix (brake control lever) does not stress substantially, now obtains a numerical value B; Then draw threshold value by system operations, the threshold value of the present embodiment is the significant in value whether indirect monitoring towing machine lock torque reaches operating needs and monitoring towing machine band-type brake state, and the threshold value set is as " A-3 " and " B+5 ".The numerical value that (towing machine does not run) monitors when towing machine band-type brake is more than or equal to A-3, and so towing machine lock torque reaches operating needs; When the numerical value monitored is less than A-3, so towing machine lock torque does not reach operating needs; The numerical value that (towing machine operation) monitors when towing machine declutches is less than or equal to B+5, and so towing machine is in the state that declutches completely; The numerical value monitored when towing machine is greater than B+5, and so towing machine has been in the state that partly declutches (operation of towing machine strap brake); Above four kinds of these devices of situation all can have corresponding signal to export, and carry out indirect monitoring towing machine lock torque whether reach operating needs according to this threshold value.
The strain-gauge of the present embodiment to be attached on strain-gauge carrier and strain-gauge carrier is fixed on the position that brake control lever stress comparatively concentrates, and other module integrations are on one piece of circuit card.The signal processor of the present embodiment adopts micro controller system.
After the installation of strain-gauge carrier, feed circuit are powered to package unit, when gathering towing machine band-type brake respectively by amplifying circuit, A/D change-over circuit, data processing module and the data in the time of declutching, and carry out demarcation of dispatching from the factory, then draw threshold value by internal system computing, carry out indirect monitoring towing machine lock torque when towing machine band-type brake by signal output module output switching signal and whether reach operating needs.
Below only just most preferred embodiment of the present invention is described, but can not be interpreted as it is limitations on claims.The present invention is not only confined to above embodiment, and its concrete structure and method of operation allow to change, as: the integration mode that types of strain gauge, strain acquirement mode, strain-gauge carrier installation position, strain-gauge carrier material, amplifier A/D transform; Deng.All various changes done in the protection domain of independent claims of the present invention are all in scope.
Claims (6)
1. a drum-type towing machine band-type brake monitoring device, is characterized in that: comprise power circuit, pressure sensor, signal processor and display module; Described pressure sensor is arranged on brake control lever for gathering brake control lever STRESS VARIATION signal; The STRESS VARIATION signal of employing is input in signal processor and carries out data processing and obtain towing machine lock torque monitor signal by described pressure sensor; Described monitor signal unit is input to display module and shows; Described power circuit is connected with signal processor.
2. drum-type towing machine band-type brake monitoring device according to claim 1, is characterized in that: described pressure sensor is strain-gauge; Described strain-gauge is arranged on the strain-gauge carrier that is arranged on brake control lever.
3. drum-type towing machine band-type brake monitoring device according to claim 1, it is characterized in that: also comprise filter circuit, described filter circuit is arranged between pressure sensor and signal processor.
4. drum-type towing machine band-type brake monitoring device according to claim 1, is characterized in that: described power circuit and signal processor and display module are arranged on circuit card; Described circuit card is arranged in elevator control cabinet.
5. drum-type towing machine band-type brake monitoring device according to claim 2, is characterized in that: described strain-gauge carrier adopts 2024-T4 High Performance aluminium to make.
6. drum-type towing machine band-type brake monitoring device according to claim 1, is characterized in that: described signal processor comprises amplifying circuit, A/D change-over circuit, data processing module and output module; Described amplifying circuit is connected with filter circuit; Described amplifying circuit is connected with A/D change-over circuit; Described A/D change-over circuit is connected with data processing module; Described data processing module is connected with output module; Described data processing module is by comparing STRESS VARIATION signal and predetermined threshold value obtains towing machine lock torque monitor signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520082532.4U CN204416828U (en) | 2015-02-05 | 2015-02-05 | A kind of drum-type towing machine band-type brake monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520082532.4U CN204416828U (en) | 2015-02-05 | 2015-02-05 | A kind of drum-type towing machine band-type brake monitoring device |
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| Publication Number | Publication Date |
|---|---|
| CN204416828U true CN204416828U (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520082532.4U Expired - Fee Related CN204416828U (en) | 2015-02-05 | 2015-02-05 | A kind of drum-type towing machine band-type brake monitoring device |
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| CN (1) | CN204416828U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104609275A (en) * | 2015-02-05 | 2015-05-13 | 宁波申菱电梯配件有限公司 | Drum-type tractor band-type brake monitoring device |
| CN105152065A (en) * | 2015-09-08 | 2015-12-16 | 广州广日电梯工业有限公司 | Elevator traction machine brake precision control system and method |
-
2015
- 2015-02-05 CN CN201520082532.4U patent/CN204416828U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104609275A (en) * | 2015-02-05 | 2015-05-13 | 宁波申菱电梯配件有限公司 | Drum-type tractor band-type brake monitoring device |
| CN105152065A (en) * | 2015-09-08 | 2015-12-16 | 广州广日电梯工业有限公司 | Elevator traction machine brake precision control system and method |
| CN105152065B (en) * | 2015-09-08 | 2017-08-25 | 广州广日电梯工业有限公司 | Realize the system and method for elevator machine brake precision controlling |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20160205 |
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| CF01 | Termination of patent right due to non-payment of annual fee |