CN210001015U - loose piece device for preventing scraper chain from knotting - Google Patents
loose piece device for preventing scraper chain from knotting Download PDFInfo
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- CN210001015U CN210001015U CN201920477269.7U CN201920477269U CN210001015U CN 210001015 U CN210001015 U CN 210001015U CN 201920477269 U CN201920477269 U CN 201920477269U CN 210001015 U CN210001015 U CN 210001015U
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- chain
- loose piece
- piece device
- ring
- knotting
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Abstract
The utility model belongs to the technical field of the conveying equipment technique of colliery coal seam exploitation and specifically relates to kinds of loose piece devices that prevent to scrape chain knot, including concave block, lug, bolt, the loose piece device is installed in the annular of founding the ring, and the boss P of lug is located the recess Q of concave block, and screw hole M and counter bore N are concentric to with bolt-up, the interval P of the E, F face of loose piece device is less than the most outer wide L of founding the ring, the arc surface R of A, B arc surface and flat ring1A3-7 mm gap is arranged. The chain is knotted and then broken because of not tightening the chain in time after the chain extends for the present scraper conveyor, and the chain kinds of loose piece devices for preventing the knotting of the scraper chain are provided, the limit flat ring and the vertical ring relative rotation amplitude are limited, the utility model discloses the broken chain caused by the knotting of the chain and the piling of the chain after the chain is broken can be prevented, the failure rate of the scraper chain can also be reduced, the maintenance time is shortened, and the reliability of the conveying equipment is improved.
Description
Technical Field
The utility model relates to a colliery is conveying equipment technical field of coal seam exploitation in the pit, in particular to kinds of loose piece devices that prevent to scrape the scraper chain and tie a knot.
Background
The chain of the scraper chain can extend naturally during operation, and the chain cannot be tensioned timely frequently, so that the chain is accumulated and knotted until the chute is blocked by chain breakage, and the chain is accumulated and knotted and is taken out from the blocked chute, so that the chain needs to be knocked vigorously by a sledge hammer to reset the chain, sometimes even the chute or the link ring needs to be cut, and great inconvenience is brought to overhaul.
Disclosure of Invention
The utility model aims at providing kinds of loose piece devices for preventing scrape the chain and tie a knot, prevent the chain and tie a knot, ulcerate piling up behind the chain to reduce the intensity of labour who overhauls the scraper chain.
The technical proposal of the utility model is that loose piece devices for preventing the scraping plate chain from knotting comprise a concave piece, a convex piece and a bolt.
The loose piece device is placed in the ring of the vertical ring;
the boss P of the convex block is positioned in the groove Q of the concave block, and the threaded hole M is concentric with the counter bore N and is fastened by a bolt;
the distance P between E, F surfaces of the loose piece device is less than the outermost width L of the vertical ring, A, B circular arc surface and the circular arc surface R of the flat ring1A3-7 mm gap is arranged.
step C surface and D surface of the loose piece device are symmetrical about the horizontal center line, the C surface and the D surface are both composed of a straight line surface and an arc surface, and the arc surface and the arc R of the vertical ring (2)2The surface is tightly attached.
the surface A and the surface B of the loose piece device are both arc surfaces, the arc surface is a halfThe diameter is equal to or similar to the circular arc surface R of the flat ring1Radius, and is symmetrical with respect to a vertical center line.
In addition, scraper chains are also included, and the scraper chains comprise loose piece devices with similar structures.
The utility model has the advantages that:
the chain breaking and the accumulation of the chain after chain breaking caused by the knotting of the chain can be prevented, the failure rate of equipment can be reduced, the time for overhauling the scraper chain is shortened, and the reliability of the conveying equipment is improved.
The technical solution of the present invention will be described in detail with reference to the accompanying drawings and the detailed description.
Drawings
FIG. 1 is a schematic view showing the installation position of devices for preventing the scraper chain from knotting;
FIG. 2 is a front view of installation positions of the device for preventing the scraper chain from knotting;
FIG. 3 is an exploded view of devices for preventing the scraper chain from knotting;
fig. 4 is a cross-sectional view of devices K-K for preventing the scraper chain from knotting.
Wherein: 1. flat ring, 2, vertical ring, 3, loose piece device, 31, concave piece, 32, convex piece, 33, bolt.
Detailed Description
As shown in figures 1-2, the loose piece device 3 is placed in the ring shape of the vertical ring 2, the boss P of the convex block 32 is positioned in the groove Q of the concave block 31, and the threaded hole M is concentric with the counter bore N and is fastened by the bolt 33. The distance P between E, F surfaces of the loose piece device 3 is less than the outmost width L of the vertical ring 2, A, B circular arc surface and the circular arc surface R of the flat ring 11A gap of 3-7 mm is arranged, and the loose piece device 3 tightly presses the vertical ring in the installation completion state.
As shown in fig. 3 to 4, the concave block 31 and the convex block 32 are integrally forged and then processed, and the entire is heat-treated and tempered. The surface C and the surface D of the loose piece device 3 are symmetrical about a horizontal central line, both the surface C and the surface D consist of a straight line surface and an arc surface, and the arc surface and the arc R of the vertical ring 22The surface is tightly attached. The surface A and the surface B of the loose piece device 3 are both arc surfaces, and the radius of the arc surface is equal to or similar to that of a flat ring arc surface R1Radius, and is symmetrical with respect to a vertical center line.
As shown in fig. 1 to 4, after the chain of the scraper chain naturally extends during operation, the relative rotation motion of the flat ring 1 and the vertical ring 2 is limited by the loose piece device 3, so that the knotting between the flat ring and the vertical ring is avoided, and the chain breakage and the accumulation of the chain after chain breakage caused by the knotting of the chain are effectively prevented.
The scraper chain and the scraper conveyor provided with the loose piece device with the similar structure are also included.
It should be understood that the above detailed description of the technical solution of the present invention with the help of preferred embodiments is illustrative and not restrictive. On reading the description of the present invention, those skilled in the art may modify the technical solutions described in the embodiments, or may substitute some technical features of the embodiments; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.
Claims (4)
1, the movable block device for preventing the scraper chain from knotting is characterized by comprising a concave block (31), a convex block (32) and a bolt (33);
the loose piece device (3) is arranged in the ring of the vertical ring (2);
the boss P of the convex block (32) is positioned in the groove Q of the concave block (31), and the threaded hole M is concentric with the counter bore N and is fastened through a bolt (33);
the distance P between the E, F surfaces of the loose piece device (3) is less than the outermost width L of the vertical ring (2), the A, B arc surface and the arc surface R of the flat ring (1)1A3-7 mm gap is arranged.
2. The loose piece device for preventing the scraping plate chain from knotting as claimed in claim 1, wherein the C surface and the D surface of the loose piece device (3) are symmetrical about the horizontal center line and both consist of a straight surface and a circular arc surface, wherein the circular arc surface and the circular arc surface R of the vertical ring (2)2And (4) clinging to each other.
3. Loose piece device for preventing the knotting of scraper chain according to claim 1, wherein the A surface and the B surface of the loose piece device (3) are both arc surfaces with arc radius equal to or similar to the arc surface R of the flat ring (1)1And is symmetrical with respect to the vertical center line.
- scraper chains, characterized in that they are provided with a loose piece device (3) according to any of the previous claims 1-3 through .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920477269.7U CN210001015U (en) | 2019-04-10 | 2019-04-10 | loose piece device for preventing scraper chain from knotting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920477269.7U CN210001015U (en) | 2019-04-10 | 2019-04-10 | loose piece device for preventing scraper chain from knotting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210001015U true CN210001015U (en) | 2020-01-31 |
Family
ID=69303408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920477269.7U Active CN210001015U (en) | 2019-04-10 | 2019-04-10 | loose piece device for preventing scraper chain from knotting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210001015U (en) |
-
2019
- 2019-04-10 CN CN201920477269.7U patent/CN210001015U/en active Active
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