CN210654853U - Blocking alarm scraper - Google Patents
Blocking alarm scraper Download PDFInfo
- Publication number
- CN210654853U CN210654853U CN201920670867.6U CN201920670867U CN210654853U CN 210654853 U CN210654853 U CN 210654853U CN 201920670867 U CN201920670867 U CN 201920670867U CN 210654853 U CN210654853 U CN 210654853U
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- China
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- baffle
- scraper
- top plate
- buffer spring
- protective cover
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Abstract
The utility model discloses a blockage warning scraper, which comprises a scraper main body and a proximity switch, wherein a protective cover is fixed above the discharging end of the scraper main body, a vertically-turned baffle is hinged on the bottom surface of a top plate at the feeding end of the protective cover, the width of the baffle is the same as that of a scraper of the scraper main body, a buffer spring is obliquely arranged between the baffle and the bottom surface of the top plate, one end of the buffer spring is fixedly connected with the baffle, and the other end of the buffer spring is fixedly connected with the bottom surface of the top plate between the baffle and the discharging end of the protective cover; and a proximity switch is fixed on the bottom surface of the top plate between the hinged end of the baffle plate and the top plate and the fixed end of the buffer spring and the top plate. The utility model has the advantages that the working continuity of the scraper is ensured, and the picking efficiency is improved; when the baffle is blocked by the coal cinder, the siren sends the police dispatch newspaper, in time reminds the workman to clear up the coal cinder, guarantees to scrape the smooth work of trigger, avoids discovering untimely to lead to scraping trigger and damages, reduces the cost of overhaul.
Description
The technical field is as follows:
the utility model relates to a scrape trigger, concretely relates to jam warning scrapes trigger.
Background art:
a scraper is generally used as a transportation device in the coal mining process. A protective cover for preventing the coal from being thrown out from the discharging end of the scraper conveyor and falling to the outside of the discharging chute is fixed above the discharging end of the scraper conveyor. In the feeding process, sometimes the coal blocks fall onto the top of a scraper of the scraper, the coal blocks at the top of the scraper are easily clamped between a protective cover and the scraper in the transportation process, and workers cannot find that the scraper still moves forwards under the driving of a chain, the clamped coal blocks can cause damage to the scraper, the chain of the scraper can be broken seriously, and the overhaul cost is increased; after the scraper machine is damaged, the scraper machine needs to be stopped for maintenance, the time consumption is long, the coal mining and selecting work is influenced, and the coal mining and selecting efficiency is reduced.
The utility model has the following contents:
an object of the utility model is to provide a can scrape the coal cinder that is higher than the scraper blade and fall, can in time report to the police and remind the workman to overhaul when scraping the trigger and taking place to block up, avoid scraping the trigger and being blocked by the coal cinder and lead to damaging, reduce the maintenance cost prevent blockking up and scrape the trigger.
The utility model discloses by following technical scheme implement: a blockage alarm scraper machine comprises a scraper machine main body and a proximity switch, wherein a protective cover is fixed above a discharging end of the scraper machine main body, a vertically-turned baffle is hinged to the bottom surface of a top plate at a feeding end of the protective cover, the width of the baffle is the same as that of a scraper plate of the scraper machine main body, a buffer spring is obliquely arranged between the baffle and the bottom surface of the top plate, one end of the buffer spring is fixedly connected with the baffle, and the other end of the buffer spring is fixedly connected with the bottom surface of the top plate between the baffle and the discharging end of the protective cover;
the proximity switch is fixed on the bottom surface of the top plate between the hinged end of the baffle plate and the top plate and the fixed end of the buffer spring and the top plate,
the proximity switch is connected with a coil of the time delay relay in series to form a closed loop;
the normally closed contact of the time delay relay is connected with the coil of the contactor in series to form a closed loop;
and the normally open contact of the contactor is arranged between the motor and the power supply.
Further, the safety cover includes the roof the equal vertical curb plate that is fixed with in both sides bottom of roof, the curb plate with scrape the frame fixed connection of trigger main part both sides.
Furthermore, a maintenance switch is arranged between the normally open contact of the contactor and the power supply.
Further, the proximity switch, a coil of the time delay relay and the alarm are connected in series to form a closed loop.
The utility model has the advantages that: 1. the baffle is hinged on the protective cover, so that the coal blocks at the top of the scraper can be scraped off, the coal blocks can be smoothly conveyed to the discharging chute, the damage of the scraper caused by the blockage between the scraper and the protective cover is avoided, the working continuity of the scraper is ensured, the coal mining and selecting efficiency is improved, and the maintenance cost is reduced; 2. the buffer spring is arranged between the baffle and the protective cover, when the baffle blocks the coal block, the buffer spring can buffer the coal block, so that the baffle is prevented from being damaged by large impact force suddenly, and the buffer spring can enable the baffle to return to a vertical position after the coal block is scraped off by the baffle; 3. the baffle can't scrape the coal cinder down, when being blocked by the coal cinder, the baffle can't reset, trigger proximity switch for a long time, trigger proximity switch, after proximity switch triggered to get electricity, time delay relay got electricity, time delay relay's normally closed contact time delay disconnection, the contactor loses electricity, the contact disconnection of contactor, the motor is shut down, it causes coal to pile up to avoid a large amount of coals to get into in the aircraft nose of scraping the trigger, avoid discovering the scraper blade deformation damage that untimely leads to scraping the trigger, reduce the cost of overhaul.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a schematic diagram of the circuit connection of the present invention.
Scrape trigger main part 1, frame 2, scraper blade 3, safety cover 4, roof 4.1, curb plate 4.2, baffle 5, buffer spring 6, proximity switch 7, time delay relay 8, contactor 9, motor 10, maintenance switch 11, alarm 12.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-3, the anti-blocking scraper comprises a scraper body 1 and a protective cover 4 fixed above the discharge end of the scraper body 1, wherein the protective cover 4 comprises a top plate 4.1, side plates 4.2 are vertically fixed at the bottoms of the two sides of the top plate 4.1, and the side plates 4.2 are fixedly connected with frames 2 at the two sides of the scraper body 1. Articulated on the feed end roof 4.1 bottom surface of protective cover 4 have baffle 5 of vertical upset, the width of baffle 5 is the same with the width of scraper blade 3 who scrapes trigger main part 1, can scrape the coal cinder at scraper blade 3 top, guarantee that the coal cinder can transport smoothly to the discharge end of scraping trigger main part 1, avoid the coal cinder card to lead to scraper blade 3 to damage between scraper blade 3 and safety cover 4, the continuity of scraping trigger work has been guaranteed, the work efficiency is improved, the maintenance cost is reduced. A buffer spring 6 is obliquely arranged between the bottom surfaces of the baffle 5 and the top plate 4.1, one end of the buffer spring 6 is fixedly connected with the baffle 5, and the other end of the buffer spring 6 is fixedly connected with the bottom surface of the top plate 4.1 from the baffle 5 to the discharge end of the protective cover 4. When baffle 5 keeps off the coal cinder, buffer spring 6 can give baffle 5 a buffering, prevents that baffle 5 from receiving great impact force suddenly and damaging, and buffer spring 6 can make baffle 5 resume vertical position after baffle 5 scrapes the coal cinder moreover.
A proximity switch 7 is fixed on the bottom surface of the top plate 4.1 from the hinged end of the baffle 5 and the top plate 4.1 to the fixed end of the buffer spring 6 and the top plate 4.1;
the proximity switch 7 and a coil of the time delay relay 8 are connected in series to form a closed loop;
a normally closed contact of the time delay relay 8 is connected in series with a coil of the contactor 9 to form a closed loop;
the normally open contact of the contactor 9 is arranged between the motor 10 and the power supply;
when a large amount of coals strike the baffle 5 in succession, scrape coal pole 1 and can be in a pivoted angle range always under the continuous striking of coal, can be long-time and proximity switch 7 contact, trigger proximity switch 7, after proximity switch 7 triggers to get electricity, time delay relay 8 gets electricity, time delay relay 8's normally closed contact time delay disconnection, contactor 9 loses the electricity, contactor 9's contact disconnection, motor 10 stops, avoid causing the coal to pile up in a large amount of coals get into the aircraft nose of scraping the trigger, avoid finding untimely scraper blade deformation damage that leads to scraping the trigger, reduce the cost of overhaul.
A maintenance switch 11 is installed between a normally open contact of the contactor 9 and a power supply, and when maintenance is carried out, the maintenance switch 11 is opened, so that the motor 10 is disconnected with the power supply, and unnecessary accidents caused by sudden starting of the motor 10 when coal near the coal scraping rod 1 is cleaned are avoided.
The working process is as follows:
after falling onto the scraper main body 1, the coal blocks mined by the coal mining machine are carried by the scraper 3 to move towards the discharge end of the scraper main body 1. When the coal cinder moves to baffle 5 below, the coal cinder at scraper blade 3 top can be with baffle 5 contact, is kept off by baffle 5, falls between two adjacent scraper blades 3, avoids blocking between safety cover 4 and scraper blade 3, guarantees scraping trigger's smooth operation. When the baffle 5 blocks the coal blocks, the buffer spring 6 buffers the baffle 5 to prevent the baffle 5 from being damaged by a large impact force suddenly, and the buffer spring 6 can enable the baffle 5 to return to a vertical position after the baffle 5 scrapes the coal blocks; when a large amount of coals strike baffle 5 in succession, scrape coal pole 1 and can be in a pivoted angle range always under the continuous striking of coal, can be long-time and proximity switch 7 contact, trigger proximity switch 7, after proximity switch 7 triggers to get the electricity, time delay relay 8 gets the electricity, time delay relay 8's normally closed contact time delay disconnection, contactor 9 loses the electricity, contactor 9's contact disconnection, motor 10 stops, avoid causing the coal to pile up in a large amount of coals get into the aircraft nose of scraping the trigger, avoid the discovery to untimely lead to scraping the scraper blade deformation damage of trigger, reduce the cost of overhaul.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A blockage alarm scraper machine is characterized by comprising a scraper machine main body and a proximity switch, wherein a protective cover is fixed above the discharging end of the scraper machine main body, a vertically-turned baffle is hinged to the bottom surface of a top plate at the feeding end of the protective cover, the width of the baffle is the same as that of a scraper plate of the scraper machine main body, a buffer spring is obliquely arranged between the baffle and the bottom surface of the top plate, one end of the buffer spring is fixedly connected with the baffle, and the other end of the buffer spring is fixedly connected with the bottom surface of the top plate between the baffle and the discharging end of the protective cover;
the proximity switch is fixed on the bottom surface of the top plate between the hinged end of the baffle plate and the top plate and the position between the buffer spring and the fixed end of the top plate;
the proximity switch is connected with a coil of the time delay relay in series to form a closed loop;
the normally closed contact of the time delay relay is connected with the coil of the contactor in series to form a closed loop;
and the normally open contact of the contactor is arranged between the motor and the power supply.
2. The blockage warning scraper machine according to claim 1, wherein the protective cover comprises a top plate, side plates are vertically fixed at the bottoms of two sides of the top plate, and the side plates are fixedly connected with the machine frames at two sides of the scraper machine body.
3. A jam warning scraper as claimed in either one of claims 1 or 2 in which: and a maintenance switch is arranged between the normally open contact of the contactor and the power supply.
4. A jam warning scraper as claimed in either one of claims 1 or 2 in which: the proximity switch is connected with a coil of the time delay relay and the alarm in series to form a closed loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920670867.6U CN210654853U (en) | 2019-05-10 | 2019-05-10 | Blocking alarm scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920670867.6U CN210654853U (en) | 2019-05-10 | 2019-05-10 | Blocking alarm scraper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210654853U true CN210654853U (en) | 2020-06-02 |
Family
ID=70842920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920670867.6U Active CN210654853U (en) | 2019-05-10 | 2019-05-10 | Blocking alarm scraper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210654853U (en) |
-
2019
- 2019-05-10 CN CN201920670867.6U patent/CN210654853U/en active Active
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