CN201654248U - Open brake detection device - Google Patents
Open brake detection device Download PDFInfo
- Publication number
- CN201654248U CN201654248U CN2009203522046U CN200920352204U CN201654248U CN 201654248 U CN201654248 U CN 201654248U CN 2009203522046 U CN2009203522046 U CN 2009203522046U CN 200920352204 U CN200920352204 U CN 200920352204U CN 201654248 U CN201654248 U CN 201654248U
- Authority
- CN
- China
- Prior art keywords
- switch
- detent
- brake
- near switch
- metal plate
- 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 - Lifetime
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- 238000001514 detection method Methods 0.000 title abstract 3
- 239000002184 metal Substances 0.000 claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 230000006698 induction Effects 0.000 claims description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 6
- 230000035945 sensitivity Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003252 repetitive effect Effects 0.000 description 2
- 206010001541 Akinesia Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Abstract
The utility model provides an open brake detection device, which comprises a proximity switch, a brake motor, an elastic brake pushing rod and a sensing metal plate. The brake motor comprises a brake motor body, the proximity switch is fixed on the brake motor body, the elastic brake pushing rod extends out of the brake motor body, the sensing metal plate is arranged at the terminal of the brake pushing rod, and the distance between the sensing metal plate and the proximity switch changes along with the flexing of the brake pushing rod. The method and the device for open brake detection provided by the utility model has the advantages of no mechanical wear, high sensitivity, reliable action, high precision of repeated positioning, high operating frequency, vibration resistance, water resistance and long service life.
Description
Technical field
The utility model relates to a kind of detent opening detecting device, more specifically, relates to the detent opening detecting device of a kind of employing near switch.
Background technology
On the drive unit of belt feeder, all have and detect the mechanical limit switch that detent is opened.When detent is opened to assigned address, under the effect of mechanical force bump, make limit switch send the ON Action signal, and (for example programmable logic controller (PLC) PLC) is finished needed action control to be transferred to controller.
Yet there are a lot of defectives in mechanical limit switch.For example, because mechanical force makes mechanism's frangibility and wearing and tearing to the bump of switch, and contact bears very high self-induced e.m.f and produces arc light and make the contact premature burnout when disconnecting, so the life-span of limit switch is shorter, causes the spare parts consumption amount of switch very big.
Secondly,, can not reset after causing limit switch akinesia or action, can cause extremely dangerous situation if switch motion is malfunctioning.Cause the reason of this situation to have three kinds, (1) limit switch contact adhesion causes opening signal often to have; (2) owing to corrosion, coal dust gather and cause the limit switch mechanical part dumb, cause switch not reset; (3) in the sleety weather in the winter time, the limit switch mechanical part freezes, and causes switch not reset.If detent breaks down and cuts out just at this moment, but controller is received the detent opening signal always, and then equipment can move as usual, so just causes the situation of detent band-type brake operation.Though the band-type brake operation can increase the load of motor, the increase deficiency of this load is so that the protection system action of motor.Like this, in a short period of time, detent will produce very high temperature, and high temperature is delivered to motor and reductor, directly causes oil sealing to damage.If find untimelyly, the coal dust breaking out of fire thereby high temperature can ignite causes serious consequence.
Once more, the inspection of mechanical limit switch is very difficult.Owing to do not show intuitively, the spot check personnel are difficult to find the internal fault of limit switch, and whether the action of limit switch has been difficult to a quantitative standards flexibly, have increased the difficulty of spot check.
The utility model content
The utility model has overcome above-mentioned defective of the prior art by a kind of detent opening detecting device is provided.
The utility model provides a kind of detent opening detecting device, it is characterized in that, comprising:
Near switch;
The detent motor, this detent motor comprises:
Detent motor main body describedly is fixed in this detent motor main body near switch;
From the extended telescopic brake push rod of described detent motor main body;
Be in the induction metal plate of the end of brake push rod,
Wherein,
Described induction metal plate and change with the flexible of brake push rod near the distance between the switch.
Preferably, describedly send shutdown signal at induction metal plate and near the distance between the switch greater than detent under near the situation of the distance of reaction of switch near switch.
Preferably, described induction metal plate is the induction iron plate.
Preferably, described near switch by be fixed to the main body of detent motor near switch bracket.
Preferably, describedly comprise mutually angled first sections and second sections near switch bracket, first sections is connected and fixed on the main body of detent motor by bolt, holds in second sections and fixing described near switch.
The detent opening detecting device that the utility model provides does not have that machinery wearing and tearing, highly sensitive, reliable in action, repetitive positioning accuracy height, operating frequency are fast, vibration resistance, waterproof and life-span be longer.
Description of drawings
Fig. 1,2,3 illustrates and is used for and will be installed near switch apart from the switch bracket of controlled plant specified distance; Wherein, Fig. 1 shows the cut-away view near first sections of switch bracket, and Fig. 2 shows the cut-away view near second sections of switch bracket, and Fig. 3 illustrates the side view of switch bracket;
Fig. 4 illustrates controlled plant, near switch bracket, near the scheme of installation of the combination of switch;
Fig. 5 illustrates the synoptic diagram that signal wire is taken back controller near switch is subjected to industrial alternating voltage control;
Fig. 6 illustrates and uses the process flow diagram that starts the whole process of peripherals near switch of the present utility model.
Embodiment
Hereinafter, identical Reference numeral refers to components identical.
Different with the controlled plant of prior art employing mechanical limit switch direct mechanical contact such as detent is, the utility model adopts and near switch controlled plant is controlled, directly do not contact controlled plant near switch, but separating certain distance of reaction with controlled plant, this distance of reaction is preferably 25 millimeters.Have very wide accommodation according to of the present utility model near switch, carrying load ability is very strong.Described accommodation is preferably: alternating voltage 20-250 volt, alternating current 3-400 milliampere; DC voltage 10-300 volt, DC current 3-300 milliampere.
Generally, the using method near switch of the present utility model can be when object to be detected is close to certain distance (for example distance of reaction), not need contact just can send switch motion or high-low level signal.Should can be a kind of sensor that metal has or not that in certain distance, detects near switch, and can directly drive load (for example, contactor, solenoid valve, relay and programmable logic controller (PLC) (PLC)).
Can will be installed in apart from the controlled plant specified distance near switch by specific device, keep certain distance of reaction so that make near switch and controlled plant.According to the utility model, adopt one will be installed on apart from controlled plant (for example detent) specified distance near switch near switch bracket.
Fig. 1,2,3 illustrate be used for be installed near switch apart from the controlled plant specified distance near switch bracket 100.Fig. 3 shows the side view near switch bracket 100.As shown in Figure 3, first sections 101 and second sections 102 that comprise each other at an angle (preferred 90 degree) near switch bracket 100.Fig. 1 shows the cut-away view of first sections 101.Fig. 2 shows the cut-away view of second sections 102.
Can have a plurality of bolt hole 101a in first sections 101.As shown in Figure 1, leave two bolt hole 101a in first sections 101, and described bolt hole 101a presents the shape of strip hole, this strip hole is preferred wide 4 millimeters, long 100 millimeters.Pierce in the controlled plant by bolt being passed corresponding bolts hole 101a, just can be with support 100 overall fixed in controlled plant.
Fig. 4 illustrates controlled plant, near switch bracket, near the scheme of installation of the combination of switch.Wherein, the controlled plant among Fig. 4 embodiment is a detent motor 404.
As shown in Figure 4, hold near switch 401 and be fixed in second sections 102 near switch bracket 100.Be fixed in the support mounting seat 405 of detent motor near first sections 101 of switch bracket 100.By above-mentioned mounting structure, can make near switch 401, near keeping relatively-stationary relation between switch bracket 100, the detent motor 404.
When detent motor 404 is opened, brake push rod 403 is protruding, thereby make induction metal plate 402 close gradually near switch 401, when reaching distance of reaction near switch 401 when induction metal plate 402 and near the distance between the switch 401, just send switch actuating signals near switch 401, and then send the detent opening signal.
When detent motor 404 cuts out, brake push rod 403 is inwardly withdrawn, thereby make induction metal plate 402 gradually away near switch 401, when exceeding distance of reaction near switch 401 when induction metal plate 402 and near the distance between the switch 401, just can not be responded near switch 401, thereby be sent the detent shutdown signal.
Fig. 5 illustrates the synoptic diagram that signal wire is taken back controller near switch is subjected to industrial alternating voltage control.As indicated above, this voltage adaptation wide range near switch, carrying load ability is very strong, and can not produce self-induction electromotive force, so industrial control alternating voltage can directly be received near switch for 110 volts, signal wire takes back programmable logic controller (PLC) (PLC), and does not need to use auxiliary reclay to isolate.In addition, preferably,, connect formula into Chang Kaifang near switch for security consideration.
Fig. 6 illustrates and uses the process flow diagram that starts the whole process of peripherals near switch of the present utility model.As shown in Figure 6, in step 601, at first system sends the instruction that starts peripherals (for example belt feeder), enters step 602 thereupon.In step 602, the warning horn jingle bell reaches the certain hour section, for example 30 seconds, reminds personnel along the line to take care.Then, in step 603, send the instruction of opening detent.Subsequently, in step 604, if detent is opened, then brake push rod is stretched out, when brake push rod near near switch and when making the two distance reach distance of reaction near switch, send the detent opening signal, enter step 605 thus, start the belt feeder drive motor.If in step 604, in certain hour section (for example 3 seconds), do not send the detent opening signal, this just shows near switch and does not start that enter step 606 this moment, carries out fault handling in step 606.
In sum, the utility model adopted near switch, advantages such as having and do not have the machinery wearing and tearing, highly sensitive, reliable in action, repetitive positioning accuracy height, operating frequency are fast, vibration resistance, waterproof and life-span are long can directly replace mechanical limit switch of the prior art.
It will be appreciated by persons skilled in the art that the utility model is not limited to embodiment mentioned above.The technical scheme that all and the foregoing description are equal to all drops in the protection domain of the present utility model.
Claims (4)
1. a detent opening detecting device is characterized in that, comprising:
Near switch (401);
Detent motor (404), this detent motor (404) comprising:
Detent motor main body describedly is fixed in this detent motor main body near switch (401);
From the described extended telescopic brake push rod of detent motor main body (403);
Be in the induction metal plate (402) of the end of brake push rod (403),
Wherein, described induction metal plate (402) and change with the flexible of brake push rod (403) near the distance between the switch (401).
2. device according to claim 1 is characterized in that, described induction metal plate is the induction iron plate.
3. device according to claim 1 is characterized in that, described near switch (401) by be fixed to the main body of detent motor (404) near switch bracket (100).
4. device according to claim 3, it is characterized in that, describedly comprise mutually angled first sections (101) and second sections (102) near switch bracket (100), first sections (101) is connected and fixed on the main body of detent motor (404) by bolt, holds in second sections (102) and fixing described near switch (401).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203522046U CN201654248U (en) | 2009-12-30 | 2009-12-30 | Open brake detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203522046U CN201654248U (en) | 2009-12-30 | 2009-12-30 | Open brake detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201654248U true CN201654248U (en) | 2010-11-24 |
Family
ID=43119492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203522046U Expired - Lifetime CN201654248U (en) | 2009-12-30 | 2009-12-30 | Open brake detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201654248U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490950A (en) * | 2011-12-29 | 2012-06-13 | 广州珠江啤酒股份有限公司 | Automatic easy-open cap paper bag removing device |
| CN103308947A (en) * | 2012-03-13 | 2013-09-18 | 汉达精密电子(昆山)有限公司 | Nut detection fixture structure |
| CN105697451A (en) * | 2014-11-27 | 2016-06-22 | 无锡市海骏液压机电设备有限公司 | Hydraulic pump support device based on induction instructions |
| CN105697461A (en) * | 2014-11-27 | 2016-06-22 | 无锡市海骏液压机电设备有限公司 | Hydraulic pump support rack based on induced detection |
| CN108482975A (en) * | 2018-02-11 | 2018-09-04 | 中国神华能源股份有限公司 | Belt control system and control method |
-
2009
- 2009-12-30 CN CN2009203522046U patent/CN201654248U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490950A (en) * | 2011-12-29 | 2012-06-13 | 广州珠江啤酒股份有限公司 | Automatic easy-open cap paper bag removing device |
| CN102490950B (en) * | 2011-12-29 | 2013-08-21 | 广州珠江啤酒股份有限公司 | Automatic easy-open cap paper bag removing device |
| CN103308947A (en) * | 2012-03-13 | 2013-09-18 | 汉达精密电子(昆山)有限公司 | Nut detection fixture structure |
| CN105697451A (en) * | 2014-11-27 | 2016-06-22 | 无锡市海骏液压机电设备有限公司 | Hydraulic pump support device based on induction instructions |
| CN105697461A (en) * | 2014-11-27 | 2016-06-22 | 无锡市海骏液压机电设备有限公司 | Hydraulic pump support rack based on induced detection |
| CN108482975A (en) * | 2018-02-11 | 2018-09-04 | 中国神华能源股份有限公司 | Belt control system and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |
|
| CX01 | Expiry of patent term |