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CN-224224689-U - Alloy lining plate with counter bore

CN224224689UCN 224224689 UCN224224689 UCN 224224689UCN-224224689-U

Abstract

The application provides an alloy lining plate with a counter bore, which comprises a substrate layer, a cladding welding layer, a counter bore structure, a counter bore embedded part, a counter bore through hole and a counter bore cladding layer, wherein the cladding welding layer is arranged on one side of the substrate layer and is welded with the substrate layer in a whole surface alloy powder cladding smelting mode, the counter bore structure comprises the counter bore embedded part, the counter bore through hole and the counter bore cladding layer, the counter bore embedded part is matched with the counter bore through hole in shape, the counter bore embedded part is inclined at an angle of 90 degrees, the counter bore bolt is an alloy steel bolt and comprises a bolt inner hexagon head, a thickening bolt head and a bolt rod, the thickening bolt head is arranged at one end of the bolt rod, the other end of the bolt rod penetrates through the counter bore through hole, the thickening bolt head is provided with a 90-degree counter bore angle which is matched with the counter bore embedded part, and the counter bore cladding layer is arranged around the thickening bolt head. The alloy lining plate provided by the application has the advantages of high wear resistance and long service life, can effectively relieve the phenomena of accumulation, blocking and sticking, and has better toughness and wear resistance at the counter bore part, thereby meeting stricter wear resistance requirements.

Inventors

  • SHEN ZHONGLIANG

Assignees

  • 上海靖壹金属制品有限公司

Dates

Publication Date
20260512
Application Date
20250612

Claims (10)

  1. 1. An alloy liner with a counterbore, comprising: A base layer; The cladding welding layer is arranged on one side of the basal layer and is welded with the basal layer in a whole alloy powder cladding smelting mode; The counter bore structure penetrates through the substrate layer and the cladding welding layer and comprises a counter bore embedded part, a counter bore through hole and a counter bore cladding welding layer, wherein the counter bore embedded part is matched with the counter bore through hole in shape, and the counter bore embedded part is inclined at an angle of 90 degrees; The countersunk bolt is an alloy steel bolt and comprises a bolt inner hexagon head, a thickening bolt head and a bolt rod, wherein the thickening bolt head is arranged at one end of the bolt rod, the other end of the bolt rod penetrates through the countersunk through hole, the thickening bolt head is provided with a 90-degree countersunk angle which is matched with the countersunk embedded part, and the countersunk overlaying layer is arranged on the periphery of the thickening bolt head.
  2. 2. The counter bore alloy lining plate according to claim 1, wherein the cladding welding layer is made of chromium carbide alloy material, the thickness of the cladding welding layer is not less than 8 mm, and the base layer is made of Q235 steel plate.
  3. 3. The counter bore alloy backing plate of claim 1, wherein the counter bore through bore has a maximum diameter of not less than 38 mm and a minimum diameter of not less than 20 mm.
  4. 4. The counter bore alloy backing plate of claim 1, wherein the largest outer diameter of the counter bore embedment in the cladding layer is not less than 38 mm and the smallest inner diameter of the counter bore embedment in the base layer is not less than 20 mm.
  5. 5. The counter bore alloy lining plate according to claim 1, wherein the nearest vertical distance between the center point of the counter bore embedded part and the boundary of the lining plate is not less than 50 mm, and the uppermost end of the counter bore embedded part protrudes out of the cladding welding layer by not less than 3 mm.
  6. 6. The counter bore alloy lining plate according to claim 1, wherein the counter bore overlay is made of chromium carbide alloy material, and the thickness of the counter bore overlay is not less than 3 mm and the width is not less than 3 mm.
  7. 7. The counter bored alloy lining plate according to claim 1, wherein the internal shape of the hexagon socket head of the bolt is regular hexagon, and the diameter of the inscribed circle is not less than 10 mm.
  8. 8. The counter bored alloy lining plate according to claim 1, wherein the section of the thickened bolt head is stepped, wherein the upper section of the thickened bolt head is a thickened section with a thickness of not less than 5mm and a diameter of not less than 30 mm, the lower section of the thickened bolt head is referred to as a stepped section with a embedding angle of 90 degrees and a thickness of not less than 7 mm, the maximum diameter is the same as the upper section, and the minimum diameter matches the size of the bolt shank.
  9. 9. The counter bored alloy bushing of claim 1, wherein the head portion of the thickened bolt head has a thickened thickness of no more than 10 millimeters.
  10. 10. The counter bored alloy backing plate of claim 1, wherein the bolt shank is an M16 full-flight screw with a maximum diameter of 16 mm.

Description

Alloy lining plate with counter bore Technical Field The application relates to the field of wear-resistant lining plate production, in particular to an alloy lining plate with a counter bore. Background The lining board is used as an important protective material and is widely applied to a plurality of industrial fields, and the lining board has the main functions of reducing equipment abrasion, prolonging the service life of equipment and improving the production efficiency. At present, although the hardness and strength of the traditional lining plate material (such as a cast iron lining plate) are high, the wear resistance is insufficient, and the extreme wear condition is difficult to cope with, while the performance of certain high polymer materials (such as a polyethylene lining plate) is reduced under a high-temperature environment, and the high polymer materials are easy to deform or damage. The common lining plate technology has the phenomena of accumulation, blocking and sticking, has shorter service life under high impact and high abrasion environment, needs frequent replacement and increases maintenance cost. In the aspect of the lining plate counter bore technology, the impact and abrasion of transported materials such as iron ore and the like on the counter bore bolt can be relieved to a certain extent by the traditional counter bore method, but the replacement frequency of the bolts is higher than that of the lining plate because the wear resistance of the bolts is lower than that of the wear-resistant layer of the lining plate. The technology of the traditional counter bore and counter bore bolt forms a short plate of the whole wear-resistant lining plate product, and is a technical difficulty in the field of wear-resistant lining plates with counter bores. Under the environment of long time and high abrasion, the counter bore and the bolt are more easily abraded, so that the maintenance period is shortened, the replacement is frequently carried out, and the maintenance cost is obviously improved. Disclosure of utility model In view of the above-mentioned shortcomings/drawbacks of the prior art, it is an object of the present application to provide a countersunk alloy liner. In a first aspect of the present application, there is provided a counter bored alloy backing plate comprising: A base layer; The cladding welding layer is arranged on one side of the basal layer and is welded with the basal layer in a whole alloy powder cladding smelting mode; The counter bore structure penetrates through the substrate layer and the cladding welding layer and comprises a counter bore embedded part, a counter bore through hole and a counter bore cladding welding layer, wherein the counter bore embedded part is matched with the counter bore through hole in shape, and the counter bore embedded part is inclined at an angle of 90 degrees; The countersunk bolt is an alloy steel bolt and comprises a bolt inner hexagon head, a thickening bolt head and a bolt rod, wherein the thickening bolt head is arranged at one end of the bolt rod, the other end of the bolt rod penetrates through the countersunk through hole, the thickening bolt head is provided with a 90-degree countersunk angle which is matched with the countersunk embedded part, and the countersunk overlaying layer is arranged on the periphery of the thickening bolt head. Optionally, the cladding welding layer is made of chromium carbide alloy material, the thickness of the cladding welding layer is not less than 8mm, and the base layer is made of Q235 steel plates. Optionally, the maximum diameter of the counter bore through hole is not less than 38 mm, and the minimum diameter is not less than 20 mm. Optionally, the maximum outer diameter of the countersink embedded part in the cladding welding layer is not smaller than 38 mm, and the minimum inner diameter of the countersink embedded part in the substrate layer is not smaller than 20 mm. Optionally, the nearest vertical distance between the center point of the embedded part of the counter bore and the boundary of the lining plate is not less than 50 mm, and the uppermost end of the embedded part of the counter bore protrudes out of the cladding welding layer to be not less than 3mm. Optionally, the counter bore surfacing layer is made of chromium carbide alloy material, the thickness of the counter bore surfacing layer is not less than 3mm, and the width of the counter bore surfacing layer is not less than 3 mm. Optionally, the internal shape of the inner hexagon head of the bolt is regular hexagon, and the diameter of the inscribed circle is not less than 10mm. Optionally, the section of the thickened bolt head is a step-shaped section, wherein the upper section of the thickened bolt head is a thickened section with the thickness not smaller than 5mm and the diameter not smaller than 30 mm, the lower section of the thickened bolt head is called a step section, the embedding angle is 90 degrees, the t