CN204197911U - Heap coal sensor - Google Patents
Heap coal sensor Download PDFInfo
- Publication number
- CN204197911U CN204197911U CN201420389482.XU CN201420389482U CN204197911U CN 204197911 U CN204197911 U CN 204197911U CN 201420389482 U CN201420389482 U CN 201420389482U CN 204197911 U CN204197911 U CN 204197911U
- Authority
- CN
- China
- Prior art keywords
- coal
- proximity switch
- bull stick
- cylindrical protrusions
- spheroid
- 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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- Control Of Conveyors (AREA)
Abstract
Be applicable to the environment that there are gas, coal dust explosion hazard in colliery.The coal position height of belt conveyer head coal bunker or the point of transition that overlaps end to end can be detected, output protection instruction when coal position exceedes protection domain, the coal piling accident produced when preventing prime from transporting smooth.Its principle of work is: be installed on above surveyed area by sensor by hanger, vertically hang.Under normal circumstances, the cylindrical protrusions on bull stick end face and proximity switch maintain a certain distance, and proximity switch keeps on-state.When occurring that coal is bought securities with all one's capital, full coal hopper time, coal touches the contact of coal site sensor, and promote bull stick disalignment, (the operating angle 30 degree when bull stick is displaced to certain angle, reset angle 15 degree), cylindrical protrusions on bull stick end face is separated with proximity switch, and proximity switch is correspondingly disconnected.Realize protect the coal piling of conveyer by these two kinds different on off modes, prevent coal piling fault from continuing expansion, reduce the loss.
Description
Technical field
Be applicable to the environment that there are gas, coal dust explosion hazard in colliery.The coal position height of belt conveyer head coal bunker or the point of transition that overlaps end to end can be detected, output protection instruction when coal position exceedes protection domain, the coal piling accident produced when preventing prime from transporting smooth.
Background technology
Along with the raising of coal production technical merit, belt conveyer is widely used.Coal piling protection is a very important link in belt conveyer centralized control protection system.Once there is coal piling accident; stackeding speed is very fast; as stopped not in time; coal just can flood conveyer head in a short time; the transmission devices such as motor deceleration case are as covered stall by coal, can cause conveyer overload stall, shutdown can directly burn the transmission devices such as motor deceleration case not in time; cause serious device damage, jeopardize personal security.Due to the particularity of underground coal mine environment, the sensing mechanism of existing heap coal sensor and travel switch are vulnerable to the impact of the external environment conditions such as coal dust interference, moisture corrosion, usually promptly and accurately can not monitor coal piling breakdown signal, and its durability, sensitivity are not very good.
Summary of the invention
Be difficult to adapt to down-hole harsh environment to solve common coal site sensor; Accurate and effective cannot monitor coal piling fault.A kind of heap coal sensor, comprise cover assembly (1) cavity (2) attached plate (3) adapter plate (4) bracket (5) bull stick (6) line mouth (7) proximity switch (8), described cover assembly is equipped with hanger, convenient suspension; Described line mouth (7) specification is internal diameter Φ 10mm, is positioned in the middle part of cavity; Described attached plate (3) is equipped with third gear connection terminal, is used for connecting proximity switch and external power supply; Described bull stick top is stuck in adapter plate and bracket, relative with proximity switch in casing, free to rotate.
According to above-described heap coal sensor, it is characterized in that bull stick top is a spheroid, there is a cylindrical protrusions on spheroid top, and bottom is cylindrical connecting rods.Spheroid is stuck in the middle of attached plate and bracket, can do and freely rotates and within the scope of 360 degree, do the swing of certain angle.
According to above-described heap coal sensor, its feature proximity switch is in cavity, relative with cylindrical protrusions on bull stick, proximity switch keeps on-state under normal circumstances, when the connecting rod that material touches bull stick bottom departs from certain angle, bull stick projection and proximity switch spacing exceed preset range, and proximity switch internal circuit disconnects.
The utility model adopts essential safe type structure, proximity switch to control.Install, use, adjustment is all very convenient, have protection well, the advantage such as not fragile.Can guarantee when underground coal mine uses to work reliably and with long-term.
Accompanying drawing illustrates: Fig. 1 is heap coal sensor External view
Fig. 2 is proximity switch interconnecting wiring diagram in heap coal sensor
Fig. 3 is heap coal sensor machinery assembly drawing
Its principle of work is: be installed on above surveyed area by sensor by hanger, vertically hang.Feature bull stick top of the present utility model is a spheroid, and there is a cylindrical protrusions on spheroid top, and bottom is cylindrical connecting rods.Spheroid is stuck in the middle of attached plate and bracket, can do and freely rotates and within the scope of 360 degree, do the swing of certain angle.When the connecting rod that material touches bull stick bottom departs from certain angle, bull stick projection and proximity switch spacing exceed preset range, and proximity switch internal circuit disconnects.
[0005]the utility model is reliable in action not only, also adopts steel closure plate, seal ring, metal platen to seal, has good leakproofness.Avoid the harmful effect that traditional heap coal sensor causes due to environmental factors such as the corrosion of underground coal mine moisture, coal dust invasions.
Detailed description of the invention: the utility model tailored appearance is generous, structure is reliability and durability, mainly be made up of cover assembly (1) cavity (2) attached plate (3) adapter plate (4) bracket (5) bull stick (6) line mouth (7) proximity switch (8), cavity is cylindrical, hanging down in bottom has bull stick, as shown in Figure 3.Sensor is installed on above surveyed area by the hanger on cover assembly (1), vertically hangs.Under normal circumstances, the cylindrical protrusions on bull stick end face and proximity switch maintain a certain distance, and proximity switch keeps on-state.When occurring that coal is bought securities with all one's capital, full coal hopper time, coal touches the contact of coal site sensor, and promote bull stick disalignment, (the operating angle 30 degree when bull stick is displaced to certain angle, reset angle 15 degree), cylindrical protrusions on bull stick end face is separated with proximity switch, and proximity switch is correspondingly disconnected.Disorderly closedown is realized, protection belt, read-out display coal piling fault through 2S time delay.The utility model is exactly by these two kinds of proximity switch different on off modes, realizes protecting the coal piling of conveyer, prevents coal piling fault from continuing to expand, reduces the loss.
Claims (3)
1. a heap coal sensor, comprise cover assembly (1) cavity (2) attached plate (3) adapter plate (4) bracket (5) bull stick (6) line mouth (7) proximity switch (8), described cover assembly is equipped with hanger, convenient suspension; Described line mouth (7) specification is internal diameter Φ 10mm, is positioned in the middle part of cavity; Described attached plate (3) is equipped with third gear connection terminal, is used for connecting proximity switch and external power supply; Described bull stick top is stuck in adapter plate and bracket, relative with proximity switch in casing, free to rotate.
2. heap coal sensor according to claim 1, it is characterized in that bull stick top is a spheroid, there is a cylindrical protrusions on spheroid top, and bottom is cylindrical connecting rods, spheroid is stuck in the middle of attached plate and bracket, can do and freely rotates and within the scope of 360 degree, do the swing of certain angle.
3. heap coal sensor according to claim 1, its feature proximity switch is in cavity, relative with cylindrical protrusions on bull stick, proximity switch keeps on-state under normal circumstances, when the connecting rod that material touches bull stick bottom departs from certain angle, bull stick projection and proximity switch spacing exceed preset range, and proximity switch internal circuit disconnects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420389482.XU CN204197911U (en) | 2014-07-15 | 2014-07-15 | Heap coal sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420389482.XU CN204197911U (en) | 2014-07-15 | 2014-07-15 | Heap coal sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204197911U true CN204197911U (en) | 2015-03-11 |
Family
ID=52655895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420389482.XU Expired - Fee Related CN204197911U (en) | 2014-07-15 | 2014-07-15 | Heap coal sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204197911U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106628949A (en) * | 2017-02-16 | 2017-05-10 | 安徽宝龙电器有限公司 | Coal stacking sensor based on magnetic reed switch |
-
2014
- 2014-07-15 CN CN201420389482.XU patent/CN204197911U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106628949A (en) * | 2017-02-16 | 2017-05-10 | 安徽宝龙电器有限公司 | Coal stacking sensor based on magnetic reed switch |
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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 |
Granted publication date: 20150311 Termination date: 20200715 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |