JPH0432326Y2 - - Google Patents

Description

[Detailed explanation of the idea] "Industrial application field" The present invention relates to an abrasion resistant liner.

``Prior Art'' Conventionally, there is a rubber lining material in which many small pieces of abrasion-resistant metal plates of several squares are fixed to the upper surface (Utility Model Publication No. 53-11952). When this lining material is heat-compressed and vulcanized from the upper and lower surfaces, the upper surface of the rubber plate is a metal plate, so heat conduction is good, and the vulcanization of the upper and lower surfaces of the rubber plate is performed evenly, so the lining material swells due to the difference in vulcanization. A flat lining material is obtained. However, when a large number of small square pieces of ceramics are placed on the upper surface, the upper and lower surfaces of the rubber plate are not evenly vulcanized due to poor heat conduction of the ceramics. As a result, as shown in Fig. 5, the central part swelled upward after vulcanization, making it difficult to obtain a lining material of good quality, and the surface unevenness caused by compression of the rubber plate at the bolt tightening part was unavoidable. 1986-
No. 100308).

``Problem to be solved by the invention'' This invention prevents the bulge of a vulcanized rubber liner with a large number of small pieces of ceramics several square squares arranged on the top surface.
Another purpose is to prevent the formation of surface irregularities due to compression of the rubber plate of the bolt tightening part.

``Means for Solving the Problems'' In order to achieve the above purpose, this proposal involves drilling bolt holes at the four corners of a flat rectangular steel plate, and drilling holes on the passing line along two sets of bolt hole passing lines. It has at least a non-perforated part on both sides, the bolt hole is bored in the bottom of the recess formed on the bottom side of the plate, the bottom forms a bolt head seat, and the plate is inserted into the bolt hole. It is buried in the middle of a rectangular rubber plate with opposing through holes, the four corners of the rubber plate are aligned with the four corners of the steel plate, and ceramics are placed on the upper surface of the rubber plate. Small pieces are fixed in a checkerboard pattern, a bolt is inserted into the through hole from the top side of the rubber plate, and rubber pieces and small ceramic pieces are sequentially laminated and fixed on the top side of the head of the inserted bolt to form the through hole. It is constructed by a wear-resistant liner that is closed off.

"Function" Therefore, the rubber plates 9 are placed on the upper and lower surfaces of the rectangular steel plate material 1.
are piled up and placed on several square ceramic pieces arranged vertically and horizontally on the bottom of the mold, and when this is heated and compressed in the vertical direction and vulcanized, the amount of heat conducted through the ceramic pieces on one side and The amount of heat directly conducted to the rubber plate on the other side is different, causing a difference in vulcanization on both sides of the rubber plate, and after vulcanization, the rubber plate shrinks more on the other side than on one side, causing the ceramic to warp or bulge on one side. try to.

However, in order for the rectangular steel plate material 1 to resist warpage or bulge and to suppress warpage or bulge, the ceramic pieces form a flat surface. Further, as shown in FIG. 3, the recess 3 enters a through hole 16 previously formed in the rubber plate 9 on the other side, and the bottom surface of the recess 3 is exposed on the outer surface of the rubber plate 9 or is covered with a thin rubber layer. The bolt hole 2 is formed, the head 11 of the bolt 10 inserted into the bolt hole 2 is supported by the seat on the bottom of the recess 3, and the bolt 10 is supported in the recess 3. A rubber piece 15 and a small ceramic piece 18 are successively laminated and fixed to the head 11 of the bolt 10, and the rectangular steel plate 1 can be fixed on the support plate by the bolt 10. The wear liner can be installed flat.

``Example'' Through-holes 5 are drilled at the four corners of the non-perforated square steel plate 1 shown in Fig. 1, and the flange 6 of the recess 3 made of a hat-shaped compression fitting is spot welded to the lower surface of the outer periphery of the through-hole 5. A bolt hole 2 is bored in the center of the recess 3, and a bolt head seat 4 is formed by the outer circumferential upper surface or bottom surface of the bolt hole 2. Then, the square steel plate material 1 is buried in the middle of the upper and lower rectangular rubber plates 9, 9. the rubber plate 9 facing the bolt hole 2;
A through hole 16 is bored through the rubber plate 9 vertically, and a bolt 10 is inserted into the bolt hole 2 from the upper side of the rubber plate 9. A rubber piece 15 and a small ceramic piece 18 are successively laminated and fixed to the head 11 of the bolt 10, the through hole 16 is closed, and the steel plate 1 is closed.
The four corners correspond to the four corners of the rubber plates 9, 9 to form a square abrasion resistant liner as a whole.

The wear-resistant liner constructed as described above is fixed onto the support plate by tightening with nuts 12. At this time, the nut tightening force is applied to the entire flat plate 1 through the seat 4, and the rubber plates 9 are fixed without being deformed.

Also, even if the nut is tightened, the bolt head 1
The rubber piece 15 and small ceramic piece 18 located on the upper surface of the rubber plate 1 do not affect the upper and lower rubber plates 9 and other ceramics, and the ceramic surface is maintained flat.

What is shown in Fig. 2 is another embodiment of the steel plate material, and as shown in the same figure, two non-perforated parallel hat sections 7, 7 are used.
are arranged in one plane, and both steels 7, 7 are connected by a connecting rod 8 to form a rectangular steel plate 1, and the bolt hole 2 is placed on the bottom center passing line c of the recess 3 of the hat-shaped steels 7, 7. There is no problem even if it has a hole. The shaped steels 7, 7 are formed with a non-porous portion having no through holes except for the bolt holes 2. In the figure, 13 is a rubber washer, 14 is a spring washer, and 17 is a joint rubber.

"Effect of the invention" Since the present invention is constructed as described above, the bolt holes 2 are bored in the four corners of the flat rectangular steel plate 1, and the bolt holes 2 are drilled along the passing line c of the two sets of bolt holes 2, 2. The plate material 1 has at least a non-porous portion on the passing line and on both sides thereof, and the plate material 1 is embedded in the middle of the rectangular rubber plates 9, 9, and the four corners of the rubber plates 9, 9 and the steel plate material 1
Since the four corners of the vulcanized rubber liner are aligned with each other, it is possible to prevent the vulcanized rubber liner, which has a large number of small square ceramic pieces with poor thermal conductivity, from bulging or warping, and to obtain a flat surface of a large number of ceramic pieces. It has the effect of

In addition, in this case, bolt holes are drilled in a flat rectangular steel plate, a bolt head seat is formed by the bottom of a recess formed on the lower surface of the plate, and the plate is connected to a through hole opposite to the bolt hole. Since the nut is embedded in a perforated rubber plate, the tightening force of the nut is applied to the entire flat plate through the seat, and the rubber plate is not deformed.

Furthermore, since the rubber piece and small ceramic piece are successively laminated and fixed on the top side of the bolt head to close the through hole in the rubber plate, even when the nut is tightened, the rubber piece and ceramic piece located on the top side of the bolt head are fixed. A high-quality wear-resistant liner with a flat ceramic surface can be obtained without the small pieces affecting the rubber plate or other ceramics.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the anti-warping device used in the wear-resistant liner of the present invention, Fig. 2 is a perspective view of another embodiment of Fig. 1, Fig. 3 is a longitudinal cross-sectional view of the bolted state, Figure 4 is a perspective view of the above wear-resistant liner, Figure 5
The figure is a perspective view of a conventional wear-resistant liner. 1... Rectangular steel plate material, 2... Bolt hole, 3... Recess, 4... Bolt head seat, 9... Upper and lower rubber plates,
10...Bolt, 15...Rubber piece, 16...Through hole, 18...Small ceramic piece.

Claims (1)

[Scope of utility model registration request] Bolt holes are drilled in the four corners of a flat rectangular steel plate material, and at least a non-perforated part is provided on the passing line and on both sides of the two sets of bolt hole passing lines, and the bolt holes are formed in the plate material. A hole is drilled in the bottom of a recess formed on the lower side, the bottom forms a bolt head seat, and the plate is buried in the middle of a rectangular rubber plate with a through hole opposite the bolt hole. Then, the four corners of the rubber plate are aligned with the four corners of the steel plate material, and small ceramic pieces are fixed to the upper surface of the rubber plate in a checkerboard pattern, and the upper surface of the rubber plate is placed in the through hole. A wear-resistant liner in which a bolt is inserted from the side, and a rubber piece and a ceramic piece are successively laminated and fixed on the upper surface of the head of the inserted bolt to close the above-mentioned through hole.