CN203319211U - Coal caking detection and protection device for redirection rollers of coal conveying belt - Google Patents
Coal caking detection and protection device for redirection rollers of coal conveying belt Download PDFInfo
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- CN203319211U CN203319211U CN2013202366865U CN201320236686U CN203319211U CN 203319211 U CN203319211 U CN 203319211U CN 2013202366865 U CN2013202366865 U CN 2013202366865U CN 201320236686 U CN201320236686 U CN 201320236686U CN 203319211 U CN203319211 U CN 203319211U
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- coal
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- limit switch
- belt
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Abstract
The utility model provides a coal caking detection and protection device for redirection rollers of a coal conveying belts. The device is used for detecting changes of diameters of the rollers, and comprises a slide component (1), a lever (2), a base (3) with a shaft (10), a limit switch (4) with a mechanical rod (6), and an elastic component (5), wherein the slide component (1) is fixed with the lever (2), and connected with the base (3) by the shaft (10); the limit switch (4) is arranged on the base (3); the mechanical rod (6) is arranged below the lever (2); one end of the elastic component (5) is arranged on the base (3); the other end of the elastic component (5) is arranged on the slide component (1); the slide component (1) comprises a rolling wheel (7), a roller bracket (8) and a support rod (9); and the rolling wheel (7) is connected with the support rod (9) by the roller bracket (8). The device can timely detect a coal caking situation of the tail redirection roller, can automatically stop the belt in case of excessive coal caking, and exerts a protection function.
Description
Technical field
The utility model relates to mechanical field, and particularly the sticky coal of a kind of coal conveyer belt bend pulley detects fender guard.
Background technology
Thermal power plant's coal conveyer belt is responsible for raw coal is delivered to the boiler original coal bunker, for the normal smooth operation of power plant, plays an important role.Yet, when it's the time of tide is past ature of coal, often occur that the raw coal belt that is scattered do not survey in thoroughly and cause belt to glue the coal phenomenon because of cleaning.When in belt, the sticky coal of survey is too much, the part raw coal sticks on stern barrel, causes strap end bend pulley diameter to become large.Strap end bend pulley dolly plays the effect of tension drum, and when afterbody bend pulley diameter becomes large, the cylinder dolly can be subjected to displacement.The sticky coal of reverse side belt is too much, and diameter of cylinder changes too greatly, and dolly is subjected to displacement and exceeds spacingly, causes the dolly getaway to be turned on one's side.Belt often, because the rollover of dolly getaway occurs that belt is badly damaged, has not only caused a large amount of economic losses, for the normal operation of generator set, has also formed serious threat.If can not keep in repair timely, even cause unit to shut down phenomenon because of disconnected coal.
There is following problem in prior art: 1,, when raw coal sticks on the bend pulley of afterbody, can't detect in time the variation of diameter of cylinder.When sticky coal too much easily causes the rollover of take-up device.While 2, on bend pulley, adhering to raw coal, easily cause the sideslip of coal conveyer belt, affect normal defeated coal operation.
The utility model content
The purpose of this utility model is to solve deficiency of the prior art: 1,, when raw coal sticks on the bend pulley of afterbody, can't detect in time the variation of diameter of cylinder.When sticky coal too much easily causes the rollover of take-up device; While 2, on bend pulley, adhering to raw coal, easily cause the sideslip of coal conveyer belt, affect normal defeated coal operation.
The utility model solves the technical scheme that its technical matters adopts: provide the sticky coal of a kind of coal conveyer belt bend pulley to detect fender guard, comprise: slide unit, lever, the base that is provided with axle, the limit switch that is provided with mechanical shaft and elasticity part, slide unit and lever are fixed together, and are connected with base by axle; Limit switch is arranged on base, and mechanical shaft is arranged on the below of lever; Elasticity part one end is arranged at base, the other end is arranged on slide unit.
Further, slide unit comprises roller, rolling wheel support and pole, and roller is connected with pole by rolling wheel support.
Further, lever and pole are fixed together, and its angle is 0 °<α<180 °.
Further, the mechanical shaft of limit switch is electrically connected to the open contact of limit switch inside.
Compared with prior art, the utlity model has following beneficial effect:
1, the sticky coal situation of afterbody bend pulley can be detected timely, the belt of can automatically stopping transport when sticky coal is too much plays a protective role.
2, this device can reduce manual patrol work, saves a large amount of recondition expenses.
3, this device can be used among the thermal powerplant coal handling system or in other belt conveyor systems in a large number.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is position view of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing of the present utility model, the technical solution of the utility model is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making under the creative work prerequisite the every other embodiment obtained, and all belong to the scope of the utility model protection.
As shown in Figure 1, the utility model provides the sticky coal of a kind of coal conveyer belt bend pulley to detect fender guard, comprising: slide unit 1, lever 2, the base 3 that is welded with rotating shaft 10, the limit switch 4 that is provided with mechanical shaft 6 and elasticity part 5 form.Slide unit 1 comprises roller 7, rolling wheel support 8 and pole 9, and roller 7 is contained in 8 li of rolling wheel supports and is supported by pole 9.
Lever 2 and pole 9 weld togethers, its angle is generally 90 degree.
The mechanical shaft 6 of limit switch 4 is electrically connected to the open contact of limit switch 4 inside, and while having guaranteed that the change of diameter of cylinder is large, activation lever 2 descends and promotes mechanical shaft 6 limit switch 4 is moved in time.
As shown in Figure 2, this detection fender guard is mounted to stern barrel belt outside midway location, and the line of centers of slide unit and the line of centers of stern barrel are at sustained height; Elasticity part one side joint lever, on the firm banking in another side joint stern barrel outside, play the effect that recovers lever positions; Lever plays gearing, and upper end is connected to the roller of slide unit, and being fixed in can be around the intermediate rotary shaft rotation of establishing part on outer wing base; Limit switch is fixed in the lower end of lever, and its mechanical shaft is positioned at the downside of the horizontal component of lever, and it is in parallel with the pull switch normal opened contact that normal opened contact is drawn in limit switch inside.The roller of slide unit does not exceed the shift value that rollover occurs dolly (yet can deduct the radius of roller and the radius value of stern barrel draws by two cylinder distance between center lines) near the cylindrical tangent line of belt one side and stern barrel belt near the tangent distance of roller.
Too much when reverse side belt band coal, it is large that the diameter of stern barrel becomes.When the increase numerical value of diameter reaches the twice of the cylinder of setting of setting and roller distance value, the outer side contacts of belt pushing rolling wheels.Through the gearing of lever, horizontal component promotes the mechanical shaft of limit switch.The limit switch action, its open contact closure, signal reaction makes the belt electrical motor lose power supply to the belt control loop, the belt of finally stopping transport, Accident prevention extension.Belt can be by the sticky coal on artificial removal's cylinder after stopping transport, and lever sets back.
Compared with prior art, the utlity model has following beneficial effect:
1, the sticky coal situation of afterbody bend pulley can be detected timely, the belt of can automatically stopping transport when sticky coal is too much plays a protective role.
2, this device can reduce manual patrol work, saves a large amount of recondition expenses.
3, this device can be used among the thermal powerplant coal handling system or in other belt conveyor systems in a large number.
Claims (4)
1. the sticky coal of coal conveyer belt bend pulley detects fender guard, it is characterized in that, comprise: slide unit (1), lever (2), the base (3) that is provided with axle (10), the limit switch (4) that is provided with mechanical shaft (6) and elasticity part (5), described slide unit (1) and described lever (2) are fixed together, and are connected with described base (3) by described axle (10); It is upper that described limit switch (4) is arranged on described base (3), and described mechanical shaft (6) is arranged on the below of described lever (2); Described elasticity part (5) one ends are arranged at described base (3), the other end is arranged on described slide unit (1).
2. the sticky coal of a kind of coal conveyer belt bend pulley according to claim 1 detects fender guard; it is characterized in that; described slide unit (1) comprises roller (7), rolling wheel support (8) and pole (9), and described roller (7) is connected with described pole (9) by described rolling wheel support (8).
3. the sticky coal of a kind of coal conveyer belt bend pulley according to claim 2 detects fender guard, it is characterized in that, described lever (2) is fixed together with described pole (9), and its angle is 0 °<α<180 °.
4. the sticky coal of a kind of coal conveyer belt bend pulley according to claim 1 detects fender guard, it is characterized in that, the mechanical shaft (6) of described limit switch (4) open contact inner with described limit switch (4) is electrically connected to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202366865U CN203319211U (en) | 2013-05-04 | 2013-05-04 | Coal caking detection and protection device for redirection rollers of coal conveying belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202366865U CN203319211U (en) | 2013-05-04 | 2013-05-04 | Coal caking detection and protection device for redirection rollers of coal conveying belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203319211U true CN203319211U (en) | 2013-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202366865U Expired - Fee Related CN203319211U (en) | 2013-05-04 | 2013-05-04 | Coal caking detection and protection device for redirection rollers of coal conveying belt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203319211U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104483714A (en) * | 2014-10-31 | 2015-04-01 | 杭州杭锅电气科技有限公司 | Circulating fluidized bed boiler break coal detection device and detection method |
| CN105059866A (en) * | 2015-07-24 | 2015-11-18 | 山东钢铁股份有限公司 | Device for preventing material sticking and blocking of roller at tail of belt conveyer |
| CN105253575A (en) * | 2015-10-10 | 2016-01-20 | 山东钢铁股份有限公司 | Method and device for preventing belt tail drum from being jammed by material adhesion |
-
2013
- 2013-05-04 CN CN2013202366865U patent/CN203319211U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104483714A (en) * | 2014-10-31 | 2015-04-01 | 杭州杭锅电气科技有限公司 | Circulating fluidized bed boiler break coal detection device and detection method |
| CN105059866A (en) * | 2015-07-24 | 2015-11-18 | 山东钢铁股份有限公司 | Device for preventing material sticking and blocking of roller at tail of belt conveyer |
| CN105253575A (en) * | 2015-10-10 | 2016-01-20 | 山东钢铁股份有限公司 | Method and device for preventing belt tail drum from being jammed by material adhesion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20170504 |