CN203581899U - Mining scraper conveyer protective circuit - Google Patents
Mining scraper conveyer protective circuit Download PDFInfo
- Publication number
- CN203581899U CN203581899U CN201320807173.5U CN201320807173U CN203581899U CN 203581899 U CN203581899 U CN 203581899U CN 201320807173 U CN201320807173 U CN 201320807173U CN 203581899 U CN203581899 U CN 203581899U
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- China
- Prior art keywords
- branch road
- chain
- intermediate relay
- relay
- switch
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- Withdrawn - After Issue
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Abstract
The utility model discloses a mining scraper conveyer protective circuit. The problem that a traditional SCD chain breakage protector cannot achieve the protecting function when chain floating, chain dropping, tooth missing and other failures happen to a scraper conveyer is solved. The protective circuit is composed of a reset switch Reset, a first proximity switch K1, a second proximity switch K2, a first intermediate relay, a second intermediate relay, a first time relay and a second time relay, the traditional SCD chain breakage protector is completely replaced, the chain breakage protection, chain dropping protection, tooth missing protection, chain floating protection and the like of the mining scraper conveyer are perfected, and the safe operation factor of the scraper conveyer is improved.
Description
Technical field
The utility model relates to coal mine scraper conveyor equipment technical field, specifically a kind of mine flight conveyer protective circuit.
Background technology
Traditional mine flight conveyer SCD break chain protector is arranged on the driven shaft of slat conveyer; when slat conveyer normally moves; its driven shaft together rotates with imput shaft; when chain rupture fault occurs; it is even zero that its output speed declines to a great extent; break chain protector detects output speed; when output speed is during lower than setting value (driven shaft normal speed 80%); break chain protector action; export an on-off signal, control drive motor out of service, send sound and light alarm simultaneously; thereby protection equipment, alert handling failure.But SCD break chain protector exists significant limitation, what cannot occur at slat conveyer floats chain, falls chain, plays a protective role while jumping the faults such as tooth.
Summary of the invention
The purpose of this utility model is in order to solve above-mentioned problems of the prior art, and a kind of mine flight conveyer protective circuit is provided, and this protective circuit floats chain at slat conveyer, falls chain, jumps tooth, chain rupture, the chain that falls, can play a protective role while jumping chain.
The utility model is achieved through the following technical solutions:
A kind of mine flight conveyer protective circuit, comprises reset switch Reset, the first approach switch K1, the second approach switch K2, the first intermediate relay, the second intermediate relay, very first time relay and the second time relay; Wherein, the coil KA1 of the first approach switch K1, the second approach switch K2 and the first intermediate relay is composed in series the first branch road, and one end of the first branch road is connected with slat conveyer contactless switch return signal Return, the other end is connected with zero line N; The open contact KA1 ' of the first intermediate relay and the coil KT1 of very first time relay are composed in series the second branch road, and one end of the second branch road is connected with slat conveyer contactless switch return signal Return, the other end is connected with zero line N; The normally closed contact KA1 ' ' of the first intermediate relay and the coil KT2 of the second time relay are composed in series the 3rd branch road, and one end of the 3rd branch road is connected with slat conveyer contactless switch return signal Return, the other end is connected with zero line N; Open contact KA2 ' one end for the second intermediate relay is connected with slat conveyer contactless switch return signal Return, the other end is connected with digital quantity input module DI; Another open contact KA2 ' ', the open contact KT1 ' of very first time relay and the open contact KT2 ' of the second time relay of the second intermediate relay compose in parallel parallel branch, the coil KA2 of reset switch Reset, parallel branch and the second intermediate relay is composed in series the 4th branch road, and one end of the 4th branch road is connected with live wire Y2, the other end is connected with zero line N.
During use, the utility model protective circuit is arranged on slat conveyer, as shown in Figure 1; specifically each on two, slat conveyer great wheel 50CM place guide rail, make a call to an aperture; in two apertures, each 1 approach switch K1 and K2 of installing, then uses resin shutoff, by Fig. 2 wiring.
(1) while floating chain, jumping tooth; scraper plate is crooked; the first approach switch K1, the second approach switch K2 are elongated opening time while; the coil KA1 adhesive of the first intermediate relay; the coil KT1 time closing of very first time relay; the coil KA2 adhesive of the second intermediate relay, the digital quantity input module DI shutdown of reporting to the police.
(2) while falling chain, chain rupture, the first approach switch K1, the second approach switch K2 are failure to actuate, the coil KT2 time closing of the second time relay, the coil KA2 adhesive of the second intermediate relay, the digital quantity input module DI shutdown of reporting to the police.
(3) after operating personal trouble-shooting, manually by " Reset " push-button reset, starting outfit operation.
The utility model protective circuit has replaced traditional SCD break chain protector completely, and the perfect chain rupture of mine flight conveyer, falls chain, jumps tooth, floats the protections such as chain, has improved slat conveyer safe operation coefficient.
Accompanying drawing explanation
Fig. 1 is the utility model protective circuit scheme of installation.
Fig. 2 is the interconnecting wiring diagram of the utility model protective circuit.
In figure: 1-guide rail, 2-scraper plate, 3-scraper chain.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
As shown in Figure 2, a kind of mine flight conveyer protective circuit, comprises reset switch Reset, the first approach switch K1, the second approach switch K2, the first intermediate relay, the second intermediate relay, very first time relay and the second time relay; Wherein, the coil KA1 of the first approach switch K1, the second approach switch K2 and the first intermediate relay is composed in series the first branch road, and one end of the first branch road is connected with slat conveyer contactless switch return signal Return, the other end is connected with zero line N; The open contact KA1 ' of the first intermediate relay and the coil KT1 of very first time relay are composed in series the second branch road, and one end of the second branch road is connected with slat conveyer contactless switch return signal Return, the other end is connected with zero line N; The normally closed contact KA1 ' ' of the first intermediate relay and the coil KT2 of the second time relay are composed in series the 3rd branch road, and one end of the 3rd branch road is connected with slat conveyer contactless switch return signal Return, the other end is connected with zero line N; Open contact KA2 ' one end for the second intermediate relay is connected with slat conveyer contactless switch return signal Return, the other end is connected with digital quantity input module DI; Another open contact KA2 ' ', the open contact KT1 ' of very first time relay and the open contact KT2 ' of the second time relay of the second intermediate relay compose in parallel parallel branch, the coil KA2 of reset switch Reset, parallel branch and the second intermediate relay is composed in series the 4th branch road, and one end of the 4th branch road is connected with live wire Y2, the other end is connected with zero line N.
Claims (1)
1. a mine flight conveyer protective circuit, is characterized in that: comprise reset switch Reset, the first approach switch K1, the second approach switch K2, the first intermediate relay, the second intermediate relay, very first time relay and the second time relay; Wherein, the coil KA1 of the first approach switch K1, the second approach switch K2 and the first intermediate relay is composed in series the first branch road, and one end of the first branch road is connected with slat conveyer contactless switch return signal Return, the other end is connected with zero line N; The open contact KA1 ' of the first intermediate relay and the coil KT1 of very first time relay are composed in series the second branch road, and one end of the second branch road is connected with slat conveyer contactless switch return signal Return, the other end is connected with zero line N; The normally closed contact KA1 ' ' of the first intermediate relay and the coil KT2 of the second time relay are composed in series the 3rd branch road, and one end of the 3rd branch road is connected with slat conveyer contactless switch return signal Return, the other end is connected with zero line N; Open contact KA2 ' one end for the second intermediate relay is connected with slat conveyer contactless switch return signal Return, the other end is connected with digital quantity input module DI; Another open contact KA2 ' ', the open contact KT1 ' of very first time relay and the open contact KT2 ' of the second time relay of the second intermediate relay compose in parallel parallel branch, the coil KA2 of reset switch Reset, parallel branch and the second intermediate relay is composed in series the 4th branch road, and one end of the 4th branch road is connected with live wire Y2, the other end is connected with zero line N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320807173.5U CN203581899U (en) | 2013-12-07 | 2013-12-07 | Mining scraper conveyer protective circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320807173.5U CN203581899U (en) | 2013-12-07 | 2013-12-07 | Mining scraper conveyer protective circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203581899U true CN203581899U (en) | 2014-05-07 |
Family
ID=50579851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320807173.5U Withdrawn - After Issue CN203581899U (en) | 2013-12-07 | 2013-12-07 | Mining scraper conveyer protective circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203581899U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103612890A (en) * | 2013-12-07 | 2014-03-05 | 大同煤矿集团有限责任公司 | Protective circuit of mining scraper conveyor |
-
2013
- 2013-12-07 CN CN201320807173.5U patent/CN203581899U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103612890A (en) * | 2013-12-07 | 2014-03-05 | 大同煤矿集团有限责任公司 | Protective circuit of mining scraper conveyor |
| CN103612890B (en) * | 2013-12-07 | 2016-06-08 | 大同煤矿集团有限责任公司 | Mine flight conveyer protection circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140507 Effective date of abandoning: 20160608 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |