CN210973051U - Wear-proof reconstruction structure of central feeder discharge arm - Google Patents
Wear-proof reconstruction structure of central feeder discharge arm Download PDFInfo
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- CN210973051U CN210973051U CN201920881028.9U CN201920881028U CN210973051U CN 210973051 U CN210973051 U CN 210973051U CN 201920881028 U CN201920881028 U CN 201920881028U CN 210973051 U CN210973051 U CN 210973051U
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- unloading arm
- arm
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Abstract
The utility model relates to an electric power industry field specifically indicates central batcher unloading arm abrasionproof transformation structure, including having cut unloading arm tip, unloading arm front-edge machined part, having cut unloading arm tip section and set up two screw holes, unloading arm front-edge machined part pass through hexagon socket head cap screw with having cut unloading arm tip section and closely laminating, unloading arm front-edge machined part is the plough point shape hexagon socket head cap screw installation is dismantled in the unloading arm front-edge machined part accessible, and central batcher unloading arm front end abrasionproof welt and unloading arm front-edge position bottom degree of wear need not to change the abrasionproof welt when great, maintain simply, and unloading arm front-edge machined part degree of wear is higher and demolish the change convenience.
Description
Technical Field
The utility model relates to an electric power industry field specifically indicates central batcher unloads the wear-resistant structure of reforming transform, and mainly used clears away the long-pending coal that unloads the formation of arm bottom.
Background
At present, 16 central feeders of power plants discharge arm is made of HARDOX400 wear-resistant steel plate, and is processed by adopting the form of integral forging, so that the abrasion resistance is strong, in order to prolong the service life of the discharge arm, a 12mm HARDOX400/1Cr18Ni9Ti lining plate is arranged at the front end of the discharge arm, and is periodically replaced according to the abrasion condition of the lining plate, so as to prolong the integral service life of the discharge arm, because the coal slurry mixed with coal from the power plant is more than 60%, the viscosity humidity is high, and a large amount of gangue is contained, through the field observation and analysis, the abrasion degree of the lining plate at the front end of the central feeder discharge arm and the bottom of the front part of the discharge arm is large, the abraded discharge arm can not completely pull the coal in front in the operation process, instead, the climbing form accumulated coal at the bottom of the discharge arm, after long-term stress extrusion, the coal quality is hardened, so that the discharge arm is slightly lifted, the running resistance of the central feeder is increased, the current is increased, even the central feeder frequently trips, great potential safety hazards are brought to high-load operation of a unit, the abrasion-proof lining plate is replaced, the problem can be relieved to a certain extent, the abrasion loss is fast when the original manufacturer provides a material lining plate, the running period is short, the workload is large during replacement, particularly during secondary plate pasting, the residue of the first-time plate pasting is removed, and great influence is brought to maintenance work. Even when blowing out for maintenance, the maintenance of the discharging arm can not be carried out because the coal bunker can not be emptied.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a technical scheme does: the anti-abrasion modification structure of the discharging arm of the central feeding machine comprises a cut discharging arm end part and a discharging arm front-end machined part, wherein the section of the cut discharging arm end part is provided with two threaded holes, and the discharging arm front-end machined part is tightly attached to the section of the cut discharging arm end part through a hexagon socket head cap screw.
As an improvement, the workpiece at the front of the discharging arm is in a shape of a plough point.
As an improvement, the unloading arm front workpiece can be mounted and dismounted through a hexagon socket head cap screw.
After the structure more than adopting, the utility model has the advantages of as follows:
(1) the abrasion-proof lining plate does not need to be replaced when the abrasion degree of the front end abrasion-proof lining plate of the discharging arm of the central feeding machine and the bottom of the front part of the discharging arm is large, and the maintenance is simple.
(2) The unloading arm front work piece wear resistance is higher and demolish the change convenience.
Drawings
Fig. 1 is a schematic view of a cut-away structure of an end portion of a discharge arm.
FIG. 2 is a schematic view of a screw hole structure of a section at the end part of a discharging arm
FIG. 3 is a schematic view of a work piece structure at the front of the discharge arm
As shown in fig. 1-3: 1. unloading arm tip 2, unloading arm front-end machined part 3, screw hole 301, hexagon socket head cap screw.
Detailed Description
In order to better understand the technical solution of the present invention, the following detailed description of the present invention is made with reference to the accompanying drawings and the using method of the embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
With reference to the attached drawings 1-3, the anti-abrasion modification structure of the discharging arm of the central feeder comprises a cut discharging arm end part 1 and a discharging arm front-end workpiece 2, wherein two threaded holes 3 are formed in the section of the cut discharging arm end part 1, and the discharging arm front-end workpiece 2 is tightly attached to the section of the cut discharging arm end part 1 through an inner hexagon bolt 301.
As a preferred embodiment of the present embodiment, the discharge arm front work piece 2 is plow-tip shaped.
As a preferred embodiment of the present embodiment, the discharge arm front workpiece 2 can be mounted and dismounted by the socket head cap screw 301.
According to the preferred embodiment of the present invention, on the basis of additionally forming the access hole outside the discharging arm platform, 50mm of the end part of the original discharging arm is cut, 2 threaded holes 3 are additionally formed in the cut section, the distance between the threaded holes is 70mm, the thread depth is about 30mm, then an active and easily detachable discharging arm front machined part 2 is installed on the cut end part 1 of the discharging arm, and the discharging arm front machined part 2 scrapes off accumulated coal formed at the bottom of the discharging arm completely in the operation process of the discharging arm.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (3)
1. Central batcher discharge arm abrasionproof reforms transform structure, its characterized in that: the automatic cutting machine comprises a cut discharging arm end part (1) and a discharging arm front edge machining piece (2), wherein two threaded holes (3) are formed in the section of the cut discharging arm end part (1), and the discharging arm front edge machining piece (2) is tightly attached to the section of the cut discharging arm end part (1) through an inner hexagonal bolt (301).
2. The central feeder discharge arm wear prevention reconstruction structure of claim 1, characterized in that: the front workpiece (2) of the discharging arm is in a plough point shape.
3. The central feeder discharge arm wear prevention reconstruction structure of claim 1, characterized in that: the unloading arm front cutting workpiece (2) can be installed and detached through the inner hexagon bolt (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920881028.9U CN210973051U (en) | 2019-06-13 | 2019-06-13 | Wear-proof reconstruction structure of central feeder discharge arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920881028.9U CN210973051U (en) | 2019-06-13 | 2019-06-13 | Wear-proof reconstruction structure of central feeder discharge arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210973051U true CN210973051U (en) | 2020-07-10 |
Family
ID=71460061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920881028.9U Active CN210973051U (en) | 2019-06-13 | 2019-06-13 | Wear-proof reconstruction structure of central feeder discharge arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210973051U (en) |
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2019
- 2019-06-13 CN CN201920881028.9U patent/CN210973051U/en active Active
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