CN214568628U - Chain breakage protection device for scraper conveyor - Google Patents
Chain breakage protection device for scraper conveyor Download PDFInfo
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- CN214568628U CN214568628U CN202120622433.6U CN202120622433U CN214568628U CN 214568628 U CN214568628 U CN 214568628U CN 202120622433 U CN202120622433 U CN 202120622433U CN 214568628 U CN214568628 U CN 214568628U
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Abstract
The utility model discloses a chain breakage protection device of a scraper conveyor, which comprises a scraper chain, wherein one side of the scraper chain is movably connected with a coal scraping rod, a support is arranged above the coal scraping rod, one side of the outer surface of the support is fixedly connected with a support shaft, the outer surface of the support shaft is movably connected with a bearing, the outer surface of the bearing is fixedly connected with a swing rod, a proximity switch is arranged above the support shaft, and one side of the upper surface of the swing rod is provided with a stop lever; under normal conditions, the two scraper chains move synchronously, the coal scraping rod is vertical to the two scraper chains, and the swinging of the two swing rods is synchronous; when faults such as chain breakage and the like occur, the two scraper chains are asynchronous, the coal scraping rod is inclined, the swinging of the two swing rods is not synchronous any more, and whether the faults such as chain breakage and the like exist or not is judged by detecting whether the two swing rods are synchronous or not.
Description
Technical Field
The utility model belongs to the technical field of scraper conveyor, concretely relates to scraper conveyor broken chain protection device.
Background
The scraper conveyor is used as important transportation, transshipment and coal blending equipment of coal mines and coal preparation plants, is generally positioned on a key line of a coal mine transportation production process, and once a fault occurs, the scraper conveyor is difficult to overhaul, and equipment in the whole plant is stopped and production is stopped seriously. The chain breakage of the existing scraper conveyor generally adopts the mode that an under-speed switch is additionally arranged at a tail wheel set, when the chain breakage of the scraper conveyor occurs, a tail under-speed sensor detects abnormal data and immediately feeds back a shutdown signal sent by a PLC (programmable logic controller) of a centralized control system to judge, and the protection effect is achieved.
When the existing chain breakage protection device of the scraper conveyor is used, if a chain of the scraper conveyor is broken during operation, the traction of an upper chain of equipment disappears, a lower chain continues to move forwards, and the chain is accumulated in a machine head and a bottom groove, so that the load of a chain wheel is increased, and the chain wheel is damaged and the current is overloaded; after the chain breakage, if not shut down in time, the interval of chain breakage department will enlarge, the chain will be piled up, when the chain breakage takes place in scraper blade one side, infrared probe on the chain-jumping protection device is because the unstability of installation, easily lead to the wrong report police, accuracy and poor stability, brought the potential safety hazard for normal production, can't be accurate carry out chain breakage fault detection to the device, after the accident happens, the workman needs to spend a large amount of time to go to carry out the tow chain, connect the processing of chain work, still can cause harm to scraper conveyor sometimes, reduce the life's of equipment problem, we propose scraper conveyor chain breakage protection device for this reason.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a chain breakage protection device of a scraper conveyor, which aims to solve the problems that when the chain breakage protection device of the scraper conveyor provided in the background technology is used, if the chain of the scraper conveyor is broken during operation, the traction of the chain on the equipment disappears, the lower chain continues to move forwards, and as a result, the chain is accumulated in the machine head and the bottom groove, the load of a chain wheel is increased, and the chain wheel is damaged and the current is overloaded; after the chain breaks, if do not in time shut down, the interval of chain breakage department will enlarge, the chain will be piled up, when the chain breakage takes place in scraper blade one side, infrared probe on the chain-jumping protection device is because the unstability of installation, easily lead to the wrong report police, accuracy and poor stability, brought the potential safety hazard for normal production, can't be accurate carry out chain breakage fault detection to the device, after the occurence of failure, the workman need spend a large amount of time go carry out the tow chain, connect the processing of chain work, still can cause harm to scraper conveyor sometimes, reduce the life's of equipment problem.
In order to achieve the above object, the utility model provides a following technical scheme: chain breakage protection device for scraper conveyor, including scraping the chain, scrape one side swing joint of chain and scrape the coal stick, the top of scraping the coal stick is provided with the support, one side fixedly connected with back shaft of support surface, the surface swing joint of back shaft has the bearing, the outer fixed surface of bearing is connected with the pendulum rod, the top of back shaft is provided with proximity switch, one side of pendulum rod upper surface is provided with the pin.
Preferably, the swing rod comprises a first branch rod and a second branch rod, one end of the first branch rod is located inside the second branch rod, the inner surface of the first branch rod is fixedly connected with a return spring, one end of the return spring is fixedly connected with a stop block, and one side of the outer surface of the stop block is fixedly connected with a limiting block.
Preferably, the inner surface of the second branch rod is provided with a groove for placing one end of the first branch rod, two sides of the outer surface of the second branch rod are provided with through holes matched with the limiting blocks, and the groove on the inner surface of the second branch rod is communicated with the through holes on the outer surface of the second branch rod.
Preferably, the width of the opening of the inner groove of the second branch rod is matched with the width of the first branch rod, a groove with the width of 6/5 is formed in the position, close to the opening, of the inner groove of the second branch rod, and the joint between the groove and the opening is an inclined plane.
Preferably, one side of the perforated inner surface of the two sides of the outer surface of the second branch rod is provided with a smooth curved surface, and the outer surface of one end, located at the outer side of the first branch rod, of the limiting block is provided with a cambered surface matched with the perforated smooth curved surface of the two sides of the second branch rod.
Preferably, the first branch rod is fixedly connected with the stop block through a return spring, and the limit block is fixedly connected with the stop block through a return spring.
Preferably, a bayonet is arranged on the outer surface of one end, located at the second branch rod, of the swing rod, and one end, located at the first branch rod, of the swing rod is attached to the outer surface of the stop rod.
Preferably, the number of the supports is two, and the two supports are both positioned above the coal scraping rod.
Preferably, the number of the swing rods is two, and the two swing rods are movably connected with the support shaft through bearings.
Preferably, the number of the limiting blocks is two, and a groove for accommodating the limiting blocks is formed in the first branch rod.
Compared with the prior art, the beneficial effects of the utility model are that:
1. by the aid of the designed support, the support shaft, the swing rod, the bearing and the proximity switch, the problem that when the scraper conveyor is in operation, if a chain of the scraper conveyor is broken, traction of an upper chain of equipment disappears, a lower chain continues to move forwards is solved, and as a result, the chain is accumulated in a machine head and a bottom groove, load of a chain wheel is increased, and the chain wheel is damaged and current overload is caused; after chain breakage, if the machine is not stopped in time, the distance between the chain breakage positions is enlarged, chains are accumulated, when chain breakage occurs on one side of a scraper, an infrared probe on a chain jumping protection device is unstable due to installation, false alarm is easy to occur, accuracy and stability are poor, potential safety hazards are brought to normal production, chain breakage fault detection cannot be accurately carried out on the device, after an accident occurs, a worker needs a large amount of time to carry out processing of drag chain and chain connection work, sometimes damage can be caused to a scraper conveyor, the service life of equipment is shortened, under normal conditions, two scraper chains move synchronously, scraper rods are perpendicular to the two scraper chains, and swinging of two swing rods is synchronous; when faults such as chain breakage and the like occur, the two scraper chains are asynchronous, the coal scraping rod is inclined, the swinging of the two swing rods is not synchronous any more, and whether the faults such as chain breakage and the like exist or not is judged by detecting whether the two swing rods are synchronous or not.
2. Through the first pole, the second branch pole, stopper, dog and reset spring of design, solved and scraped trigger chain breakage protection device in the use, its pendulum rod long-time and scrape the contact between the coal stick, because adhesion debris or other problems probably need be changed, be not convenient for change the pendulum rod in order to avoid current device, influence the problem of device normal use.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic side sectional view of the first branch rod of the present invention;
fig. 3 is a schematic structural view of fig. 2-a of the present invention;
fig. 4 is a schematic structural diagram of fig. 2-B of the present invention.
In the figure: 1. a scraper chain; 2. scraping a coal rod; 3. a support; 4. a support shaft; 5. a swing rod; 6. a bearing; 7. a proximity switch; 8. a stop lever; 9. a first branch rod; 10. a second branch rod; 11. a limiting block; 12. a stopper; 13. a return spring.
Detailed Description
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 work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides the following technical solutions: chain breakage protection device of scraper conveyor, including scraping chain 1, scrape the upper surface swing joint of chain 1 and scrape coal stick 2, the top of scraping coal stick 2 is provided with support 3, one side fixedly connected with back shaft 4 of 3 surfaces of support, the surface swing joint of back shaft 4 has bearing 6, the fixed surface of bearing 6 is connected with pendulum rod 5, the top of back shaft 4 is provided with proximity switch 7, one side of the 5 upper surfaces of pendulum rod is provided with pin 8.
In this embodiment, scrape coal stick 2 when the device is normally used and be leaning on two parallel and synchronous motion scrape 1 control motion of chain, two pendulum rod 5 synchronous swings simultaneously, when faults such as chain breakage appear, two scrape that chain 1 is asynchronous, scrape coal stick 2 and take place the slope, the swing of two pendulum rod 5 is no longer synchronous simultaneously, then detect under proximity switch 7 whether two swinging arms are synchronous to judge whether have faults such as chain breakage, be convenient for to the use of device.
Specifically, the swing rod 5 comprises a first branch rod 9 and a second branch rod 10, one end of the first branch rod 9 is located inside the second branch rod 10, a return spring 13 is fixedly connected to the inner surface of the first branch rod 9, a check block 12 is fixedly connected to one end of the return spring 13, and a limit block 11 is fixedly connected to one side of the outer surface of the check block 12.
In this embodiment, when the swing link 5 needs to be replaced, the two limit blocks 11 exposed outside the second branch rod 10 are firstly pressed to the inside of the second branch rod 10, then the second sub-rod 10 is pulled to make the cambered surface at one end of the limiting block 11 contact with the smooth curved surface at one side of the inner part of the through hole at the two sides of the second sub-rod 10, the limiting block 11 is further pressed into the inner part of the first sub-rod 9, at the moment, the limiting block 11 presses the return spring 13 through the stop block 12 to force the return spring, when the limiting block 11 moves to a position close to the opening, further get into the inside of first minute pole 9 again under the oppression on inclined plane, then divide pole 10 and first minute pole 9 separation, reverse operation during the installation moves stopper 11 through first minute pole 9 to the second divide pole 10 both sides punch position pop out under the effect of reset spring 13 power can, be convenient for change the dismantlement of pendulum rod 5.
Specifically, the inner surface of the second branch rod 10 is provided with a groove for placing one end of the first branch rod 9, the two sides of the outer surface of the second branch rod 10 are provided with through holes matched with the limiting blocks 11, and the groove on the inner surface of the second branch rod 10 is communicated with the through holes on the outer surface of the second branch rod 10.
In this embodiment, the groove on the inner surface of the second branch rod 10 is communicated with the through hole on the outer surface of the second branch rod 10, so that the first branch rod 9 drives the limiting block 11 to the through hole side on the outer surface of the second branch rod 10, and the two parts of the first branch rod 9 and the second branch rod 10 of the swing rod 5 are fixedly connected.
Specifically, the width of the opening of the inner groove of the second branch rod 10 is matched with the width of the first branch rod 9, a groove with the width of the first branch rod 96/5 is formed in the position, close to the opening, of the inner groove of the second branch rod 10, and the connecting position between the groove and the opening is an inclined plane.
In this embodiment, the second divides the inside groove one end opening width of pole 10 and the width phase-match of first branch pole 9 for first branch pole 9 and second divide pole 10 to connect the back stable in utilization, can not take place great rocking, and the second divides the inside wider groove of opening that is close to of pole 10, is convenient for to stopper 11's oppression installation.
Specifically, one side of the inner surface of the two perforated sides of the outer surface of the second branch rod 10 is provided with a smooth curved surface, and the outer surface of one end, located at the outer side of the first branch rod 9, of the limiting block 11 is provided with a cambered surface matched with the two smooth curved surfaces of the two perforated sides of the second branch rod 10.
In this embodiment, the smooth curved surface of the inner surface of the through hole on both sides of the outer surface of the second branch rod 10 is used for matching with the outer surface of one end of the limit block 11, so that the first branch rod 9 can drive the limit block 11 to move inside the second branch rod 10.
Specifically, the first branch rod 9 and the stopper 12 are fixedly connected through a return spring 13, and the limiting block 11 and the stopper 12 are fixedly connected through the return spring 13.
In this embodiment, the limiting block 11 is pressed to drive the stopper 12 to press the return spring 13 to force the return spring, and then the limiting block 11 is controlled to return under the action of the return spring 13.
Specifically, a bayonet is arranged on the outer surface of one end, located at the second branch rod 10, of the swing rod 5, and one end, located at the first branch rod 9, of the swing rod 5 is attached to the outer surface of the stop rod 8.
In this embodiment, the bayonet on the outer surface of one end of the swing rod 5 is used for contacting the swing rod 5 with the coal scraping rod 2, the swing rod 5 is located at one end of the first branch rod 9 and intermittently contacts the outer surface of the stop lever 8, the swing rod 5 is limited, and the proximity switch 7 is matched to detect the synchronism of the two swing rods 5.
Specifically, the number of the supports 3 is two, and the two supports 3 are both located above the coal scraping rod 2.
In this embodiment, two brackets 3 are used to support the support shaft 4 and normal use of the device.
Specifically, the number of the swing rods 5 is two, and the two swing rods 5 are movably connected with the support shaft 4 through bearings 6.
In this embodiment, the failure of the device exercise is monitored by detecting the synchronous oscillation of the two oscillating bars 5.
Specifically, the number of the limiting blocks 11 is two, and a groove for accommodating the limiting blocks 11 is formed in the first branch rod 9.
In this embodiment, the two limit blocks 11 are driven by the first branch rod 9 to move inside the second branch rod 10, and the limit blocks 11 are accommodated in the grooves inside the first branch rod 9.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. Scraper conveyor chain breakage protection device, including scraper chain (1), its characterized in that: scrape upper surface one side swing joint of chain (1) and scrape coal stick (2), the top of scraping coal stick (2) is provided with support (3), one side fixedly connected with back shaft (4) of support (3) surface, the surface swing joint of back shaft (4) has bearing (6), the surface fixedly connected with pendulum rod (5) of bearing (6), the top of back shaft (4) is provided with proximity switch (7), one side of pendulum rod (5) upper surface is provided with pin (8).
2. The broken chain protection device of the scraper conveyor as claimed in claim 1, wherein: the swing rod (5) comprises a first branch rod (9) and a second branch rod (10), one end of the first branch rod (9) is located inside the second branch rod (10), the inner surface of the first branch rod (9) is fixedly connected with a return spring (13), one end of the return spring (13) is fixedly connected with a check block (12), and one side of the outer surface of the check block (12) is fixedly connected with a limiting block (11).
3. The broken chain protection device of the scraper conveyor as claimed in claim 2, wherein: the inner surface of the second branch rod (10) is provided with a groove for placing one end of the first branch rod (9), two sides of the outer surface of the second branch rod (10) are provided with through holes matched with the limiting blocks (11), and the groove of the inner surface of the second branch rod (10) is communicated with the through holes of the outer surface of the second branch rod (10).
4. The broken chain protection device of the scraper conveyor as claimed in claim 2, wherein: the width of the opening of the inner groove of the second branch rod (10) is matched with the width of the first branch rod (9), the position, close to the opening, of the inner groove of the second branch rod (10) is provided with a groove with the width of 6/5 the first branch rod (9), and the joint between the groove and the opening is an inclined plane.
5. The broken chain protection device of the scraper conveyor as claimed in claim 2, wherein: one side of the perforated inner surface of the two sides of the outer surface of the second branch rod (10) is provided with a smooth curved surface, and the outer surface of one end, which is positioned at the outer side of the first branch rod (9), of the limiting block (11) is provided with a cambered surface matched with the perforated smooth curved surface of the two sides of the second branch rod (10).
6. The broken chain protection device of the scraper conveyor as claimed in claim 2, wherein: the first branch rod (9) is fixedly connected with the stop block (12) through a return spring (13), and the limiting block (11) is fixedly connected with the stop block (12) through the return spring (13).
7. The broken chain protection device of the scraper conveyor as claimed in claim 2, wherein: the outer surface of one end, located on the second branch rod (10), of the swing rod (5) is provided with a bayonet, and one end, located on the first branch rod (9), of the swing rod (5) is attached to the outer surface of the stop rod (8).
8. The broken chain protection device of the scraper conveyor as claimed in claim 1, wherein: the number of the supports (3) is two, and the two supports (3) are both positioned above the coal scraping rod (2).
9. The broken chain protection device of the scraper conveyor as claimed in claim 1, wherein: the number of the swing rods (5) is two, and the two swing rods (5) are movably connected with the supporting shaft (4) through bearings (6).
10. The broken chain protection device of the scraper conveyor as claimed in claim 2, wherein: the number of the limiting blocks (11) is two, and grooves for accommodating the limiting blocks (11) are formed in the first branch rods (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120622433.6U CN214568628U (en) | 2021-03-28 | 2021-03-28 | Chain breakage protection device for scraper conveyor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120622433.6U CN214568628U (en) | 2021-03-28 | 2021-03-28 | Chain breakage protection device for scraper conveyor |
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| CN214568628U true CN214568628U (en) | 2021-11-02 |
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| CN202120622433.6U Active CN214568628U (en) | 2021-03-28 | 2021-03-28 | Chain breakage protection device for scraper conveyor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114560256A (en) * | 2022-02-28 | 2022-05-31 | 国能神东煤炭集团有限责任公司 | Scraper conveyor fault detection method and system and storage medium |
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2021
- 2021-03-28 CN CN202120622433.6U patent/CN214568628U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114560256A (en) * | 2022-02-28 | 2022-05-31 | 国能神东煤炭集团有限责任公司 | Scraper conveyor fault detection method and system and storage medium |
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