CN201280339Y - Low-speed detection switch for conveyer belt - Google Patents
Low-speed detection switch for conveyer belt Download PDFInfo
- Publication number
- CN201280339Y CN201280339Y CNU2008201325975U CN200820132597U CN201280339Y CN 201280339 Y CN201280339 Y CN 201280339Y CN U2008201325975 U CNU2008201325975 U CN U2008201325975U CN 200820132597 U CN200820132597 U CN 200820132597U CN 201280339 Y CN201280339 Y CN 201280339Y
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- speed
- speed measuring
- roller
- tachogenerator
- tests
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Abstract
The utility model relates to a detecting device of a material conveying sealing-tape machine, in particular to a low speed detecting switch of a conveyer belt. The utility model adopts the technical scheme that the detecting device comprises a speed measuring roller (1), a speed switch housing (2), a speed measuring generator (3), a speed measuring control plate (6), the speed measuring generator (3) and a speed measuring control plate (6) are arranged in the speed switch housing (2) and the speed measuring roller (1) is arranged outside the speed switch housing (2), the shaft of the speed measuring generator (3) is fixedly connected with the shaft of the speed measuring roller (1), and the speed measuring control plate (6) is in matched connection with the speed measuring generator (3). The speed measuring roller is in contact with a detected belt, when the belt slips or is at a low speed, the output voltage of the speed measuring generator is lower than the rated voltage, a control section of a relay of the speed measuring control plate is electrically connected with an alarm to give an alarm or directly cuts off a dynamical power. The detecting device has the characteristics of reasonable structure, accurate detection, low probability of generating wrong alarm, long service life, and the like.
Description
Affiliated technical field:
The utility model relates to a kind of material and transmits sealing-tape machine detecting device, particularly conveyer belt low-speed detection switch.
Background technology:
At present; travelling apron is used widely in commercial production; belt low velocity detecting device effect commonly used is: when sealing-tape machine speed is low than normal value, accurately send low speed warning or shutdown signal, thereby avoid the generation of great industrial accidents such as sealing-tape machine binder.Known switch for over speed detection has two kinds of forms: a kind of is the mechanical contact structure, its action principle is when the roller of speed switch surpasses certain rotating speed, utilize the effect of spring tension, closure battle with speed switch, send the sealing-tape machine CRANK PULSES, when sealing-tape machine speed is lower than certain value, send the sealing-tape machine low speed signal; Another kind of speed switch is the electronic frequency construction of switch, it is installed to speed switch inside with the electronic frequency switch, the principle of utilizing is when belt feeder moves, if the inductive switch frequency that the frequency switching inductive head receives surpasses certain value, frequency switching is sent the sealing-tape machine CRANK PULSES with regard to switch on, when sealing-tape machine speed is lower than certain value, frequency switching is sent the sealing-tape machine low speed signal with regard to cut off.The speed switch of first kind of structure is when the mechanical contact bad contact, and false positive signal causes sealing-tape machine mistakenly stop accident easily; The speed switch of second kind of structure is when frequency switching generation electric breakdown, and frequency switching will be connected for a long time, even sealing-tape machine low speed or shutdown so do not report the sealing-tape machine low speed signal yet, therefore will cause sealing-tape machine binder accident.
The utility model content:
The utility model purpose provides a kind of conveyer belt low-speed detection switch, detects accurately, can not report by mistake, and long service life solves the problems referred to above that exist in the background technology.
The technical solution of the utility model is: conveyer belt low-speed detection switch comprises the roller that tests the speed, speed switch casing, tachogenerator, control desk tests the speed, tachogenerator, the control desk that tests the speed are arranged in the speed switch casing, the roller that tests the speed contacts with detected belt, be arranged on outside the speed switch casing, the axle of tachogenerator is captiveed joint with the axle of the roller that tests the speed, and the control desk that tests the speed coupling connects tachogenerator.
The said control desk that tests the speed comprises aerotron, voltage stabilizer, rectifier, relay, rectifier is connected with the output of tachogenerator, alternating current is transformed to direct current (DC), the output of rectifier is connected with transistor circuit, the output of aerotron connects voltage stabilizer and relay, and the control economize on electricity of relay connects annunciator or control electrical source of power.
For the switch low velocity actuation of an alarm value of regulating the speed, in transistor circuit, be provided with potential device, adjust the size of potential device value, can change the operating value that the speed switch low velocity is reported to the police.
Adopt the utility model, the roller that tests the speed contact with detected belt, is driven rotation by sealing-tape machine and reaches the tachogenerator rated speed of rotation when above, the specified alternating voltage of generation on the tachogenerator when the roller that tests the speed like this; Proportional because of the output voltage and the rotating speed of tachogenerator, the rotating speed of tachogenerator reduces the decline that just means generator output voltage.When slipping of the belt or low speed, when the rotating speed of tachogenerator is lower than rated speed of rotation, output voltage just is lower than rated voltage, the vdc of rectifier output also can be less than the voltage of setting, the aerotron conducting, the control relay action, the control economize on electricity of relay connects annunciator reports to the police, or directly cuts off electrical source of power.
In order to make the roller that tests the speed more closely contact belt, on the speed switch casing, be provided with support and extension spring, the speed switch casing is hinged on the support, test the speed roller and extension spring lays respectively at the both sides of support, constitute lever construction, the tension extension spring, it is tightr that the roller that tests the speed contacts with belt, and it is more accurate to test the speed.
The utlity model has rational in infrastructure, detect accurately, can not report by mistake, the long service life characteristics, what the utility model was exported is the relay Control Node, it is passive output point, the utility model is compared with the frequency switching type speed switch in the background technology, it has solved when frequency switching type speed switch in-to-in frequency switching takes place to puncture, and the switching point normal open is not reported fault output problem.
Description of drawings:
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is test the speed among the utility model embodiment structure and the schematic diagram of control desk.
Among the figure: the roller 1 that tests the speed, speed switch casing 2, tachogenerator 3, extension spring 4, support 5, the control desk 6 that tests the speed, aerotron 7, voltage stabilizer 8, rectifier 9, relay 10, potential device 11.
The specific embodiment:
Below in conjunction with accompanying drawing, the utility model is described in further detail by embodiment.
In an embodiment, conveyer belt low-speed detection switch comprises the roller 1 that tests the speed, speed switch casing 2, tachogenerator 3, control desk 6 tests the speed, tachogenerator 3, the control desk 6 that tests the speed are arranged in the speed switch casing 2, the roller 1 that tests the speed contacts with detected belt, be arranged on outside the speed switch casing 2, the roller 1 that tests the speed is connected with tachogenerator 3 couplings, and control desk 6 couplings that test the speed connect tachogenerator.The said control desk 6 that tests the speed comprises aerotron 7, voltage stabilizer 8, rectifier 9, relay 10, rectifier 9 is diode bridge rectifier circuits, be connected with the output of tachogenerator 3, alternating current is transformed to direct current (DC), the output of rectifier is connected with transistor circuit, the output of aerotron 7 connects voltage stabilizer 8 and relay 10, power silicon triode during aerotron adopts, voltage stabilizer is a three terminal regulator, be the switch low velocity actuation of an alarm value of regulating the speed, be provided with potential device 11 in transistor circuit, the size of adjusting potential device 11 values can change the operating value that the speed switch low velocity is reported to the police, and the control economize on electricity of relay 10 connects annunciator.Be provided with support 5 and extension spring 4 on speed switch casing 2, speed switch casing 2 is hinged on the support 5, and test the speed roller 1 and extension spring 4 lay respectively at the both sides of support 5, the tension extension spring, and it is tightr that the roller that tests the speed contacts with belt, and it is more accurate to test the speed.The axle of tachogenerator carries out mechanical connection with the axle of the roller that tests the speed, drive to be rotated by sealing-tape machine and reach the tachogenerator rated speed of rotation when above when the roller that tests the speed like this, produce specified alternating voltage on the tachogenerator, proportional because of the output voltage and the rotating speed of tachogenerator, the rotating speed of tachogenerator reduces the decline that just means generator output voltage.When slipping of the belt or low speed, when the rotating speed of tachogenerator was lower than rated speed of rotation, output voltage just was lower than rated voltage, the vdc of rectifier output also can be less than the voltage of setting, the aerotron conducting, the control relay action, the control economize on electricity of relay connects annunciator and reports to the police.
Claims (4)
1, a kind of conveyer belt low-speed detection switch, it is characterized in that comprising test the speed roller (1), speed switch casing (2), tachogenerator (3), the control desk that tests the speed (6), tachogenerator (3), the control desk that tests the speed (6) are arranged in the speed switch casing (2), the roller (1) that tests the speed is arranged on outside the speed switch casing (2), the axle of tachogenerator (3) is captiveed joint with the axle of the roller that tests the speed (1), and the control desk that tests the speed (6) coupling connects tachogenerator (3).
2, the conveyer belt low-speed detection switch according to claim 1, the control desk (6) that it is characterized in that testing the speed comprises aerotron (7), voltage stabilizer (8), rectifier (9), relay (10), rectifier (9) is connected with the output of tachogenerator (3), the output of rectifier (9) is connected with transistor circuit, and the output of aerotron (7) connects voltage stabilizer (8) and relay (10).
3, the conveyer belt low-speed detection switch according to claim 2 is characterized in that being provided with potential device (11) in aerotron (7) circuit.
4, according to claim 1 or 2 described conveyer belt low-speed detection switches, it is characterized in that speed switch casing (2) is provided with support (5) and extension spring (4), speed switch casing (2) is hinged on the support (5), test the speed roller (1) and extension spring (4) lays respectively at the both sides of support (5), constitutes lever construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201325975U CN201280339Y (en) | 2008-08-15 | 2008-08-15 | Low-speed detection switch for conveyer belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201325975U CN201280339Y (en) | 2008-08-15 | 2008-08-15 | Low-speed detection switch for conveyer belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201280339Y true CN201280339Y (en) | 2009-07-29 |
Family
ID=40927220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201325975U Expired - Fee Related CN201280339Y (en) | 2008-08-15 | 2008-08-15 | Low-speed detection switch for conveyer belt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201280339Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102862240A (en) * | 2011-07-08 | 2013-01-09 | 浙江思博恩新材料科技有限公司 | Diamond wire coiling system |
| CN103434814A (en) * | 2013-09-05 | 2013-12-11 | 鞍钢集团矿业公司 | Belt deviation detection device of belt conveyer |
| CN103935727A (en) * | 2014-04-11 | 2014-07-23 | 中交机电工程局有限公司 | Belt conveyor speed monitoring device |
| CN104692076A (en) * | 2015-01-21 | 2015-06-10 | 张广山 | Conveyor belt vibration amplitude detecting device |
| CN104773467A (en) * | 2015-04-22 | 2015-07-15 | 宝钢发展有限公司 | Belt-conveying automatic cleaning and dust removal device of rotary hearth furnace and control method of belt-conveying automatic cleaning and dust removal device |
| CN104909136A (en) * | 2014-03-12 | 2015-09-16 | 无锡百科知识产权有限公司 | Comprehensive detection method of belt conveying line |
| CN107219793A (en) * | 2017-06-09 | 2017-09-29 | 大连理工大学 | A kind of grain depot belt feeder transit area explosion-proof monitoring system |
-
2008
- 2008-08-15 CN CNU2008201325975U patent/CN201280339Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102862240A (en) * | 2011-07-08 | 2013-01-09 | 浙江思博恩新材料科技有限公司 | Diamond wire coiling system |
| CN102862240B (en) * | 2011-07-08 | 2015-08-05 | 浙江瑞翌新材料科技有限公司 | A kind of diamond wire winding system |
| CN103434814A (en) * | 2013-09-05 | 2013-12-11 | 鞍钢集团矿业公司 | Belt deviation detection device of belt conveyer |
| CN103434814B (en) * | 2013-09-05 | 2015-07-01 | 鞍钢集团矿业公司 | Belt deviation detection device of belt conveyer |
| CN104909136A (en) * | 2014-03-12 | 2015-09-16 | 无锡百科知识产权有限公司 | Comprehensive detection method of belt conveying line |
| CN103935727A (en) * | 2014-04-11 | 2014-07-23 | 中交机电工程局有限公司 | Belt conveyor speed monitoring device |
| CN103935727B (en) * | 2014-04-11 | 2016-03-30 | 中交机电工程局有限公司 | A kind of belt feeder device for monitoring speed |
| CN104692076A (en) * | 2015-01-21 | 2015-06-10 | 张广山 | Conveyor belt vibration amplitude detecting device |
| CN104773467A (en) * | 2015-04-22 | 2015-07-15 | 宝钢发展有限公司 | Belt-conveying automatic cleaning and dust removal device of rotary hearth furnace and control method of belt-conveying automatic cleaning and dust removal device |
| CN107219793A (en) * | 2017-06-09 | 2017-09-29 | 大连理工大学 | A kind of grain depot belt feeder transit area explosion-proof monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090729 Termination date: 20100815 |