JPS5919013B2 - lining surface - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lining surface of a novel configuration, and more particularly to a lining surface in which adhesion of articles and abrasion of the surface are effectively prevented.

Traditionally, many factories have used punkers or hoppers to reduce costs and improve productivity, and these have now become essential equipment.

However, conventional punker hoppers often suffer from sudden troubles, the main causes of which are the adhesion of stored goods to the lining material, abrasion of its surface, and the bridging phenomenon that develops from this. As one specific example,
There is a hopper for foundry sand.

Since foundry sand contains a small amount of water, the sand adheres to the lining surface, developing a bridging effect and stopping the sand flow. Adhesion to the inner surface of the hopper makes it difficult to remove, reducing foundry sand quality and productivity. Therefore, in order to prevent this, the hopper is often struck with a hammer from the outside, which affects the life of the hopper and shortens its service life. A second example is lining surfaces for non-ferrous metals.

For example, the raw material fed to the smelter furnace is moist with very fine particles that stick tightly to the inside of the puncher. Compressed air is blown onto the slope of the punker to stop the flow of particles, but this has not been successful. A third example is a concrete bunker for coal. Concrete punkers have poor slippage and coal remains on the walls, so it has been found that only 75% of the total volume of the puncher can be utilized. Another example is a rough stone transportation vehicle. Damp ore adheres to the edges and inside surfaces of transportation vehicles, making unloading difficult and reducing vehicle turnover rates. To solve these problems, we lined (or in some cases coated) with rubber, polypropylene, vinyl chloride, Teflon, ceramic, epoxy, etc.
A means of protection using a stainless steel sheet has been adopted, but the former rubber, plastic, etc. have a disadvantage in that they are inferior in wear resistance and other mechanical properties, and the latter stainless steel sheet has the disadvantage that it is heavy. In addition, the lining member is fixed directly to the protective surface using bolts, nuts, etc., and a slight clearance is provided to prevent movement of the lining member, but it is difficult to completely eliminate movement caused by thermal expansion. has not been reached yet. SUMMARY OF THE INVENTION In view of the above problems, the present invention provides a lining surface that provides good flow without the adhesion of articles and completely eliminates movement of the lining sheet due to thermal expansion.

In the present invention, a lining material is applied to the surface which is highly abrasion resistant and has good sliding properties.

The lining material is a sheet of plastic material and is fixed onto the base material by suitable means. The lining sheets preferably have a rectangular shape, and gaps are formed between each sheet to allow movement due to thermal expansion. In addition to the above-mentioned wear resistance and sliding properties, the plastic material also has impact resistance, chemical resistance, tensile strength,
It is preferable that the material is highly non-adhesive and non-water absorbent. A preferred material that satisfies this type of property is ultra-high molecular weight polyethylene having 4 million or more molecular molecules, and its density is preferably at least greater than 0.941 f/i. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Figure 1 shows a hopper lined with a lining sheet of ultra-high molecular weight polyethylene.
The overall shape is a conventionally known general shape.

A lining sheet 20 is fixed to the hopper base material on the inner surface of the hopper 10 by a fixing device 30 and a corner member 40, and a stainless hook 50 is provided on the upper part of the hopper 10. Ill. Referring to FIG. 2, a lining sheet 20 to be lined on the hopper 10 is shown.

For example, it has a thickness of 5m and 45mm above and below it. A tapered portion 21 having an angle of 1 is formed and tapers, and a bolt hole 22 for guiding a bolt forming a fixing device to the base material is formed in the soil portion. Referring to FIG.
It is shown. Figure 3 A is a front view, the opening in Figure 3 is a left side view, and Figure 3 C is a plan view. It is formed. Referring to FIG. 4A and opening, there is shown a corner member 40 having almost the same configuration as the corner member 40 shown in FIG. A nut engaging stepped portion 41 and a bolt hole 42 are provided.

Referring to FIGS. 5A, 5A and 5C, a stop washer 31A forming the fixing device 30 in FIG.
The spout and knock-off bolt 338 are shown.

The opening of the T-nut 32 engages with the stop washer 31 at the ear, and the diameter of the ear is set to match the bolt hole 4.
It is made larger than 2. Furthermore, the T-nut 32
The diameter of the body of the mouth is smaller than that of the holes 22 and 42. 6A to 6E illustrate cross sections of the hopper shown in FIG. 1 along A-AEE-E.

Figure 6A shows the section A-A in Figure 1,
A lining sheet 20 and a corner member 40 are located on the surface of the hopper base material 1, and a T-nut 32 screwed into a bolt 33 welded to the base material 1 is attached to the corner member 40. By engaging with the engagement step portion 41,
The inner surface of the hopper is lined. Tapered part 21 of lining sheet 20 and corner member 4
A stainless steel pot 50 is provided over the tapered portion 43 of 0. The opening in FIG. 6 shows the part B-B in FIG. The lining sheet 20 is secured to the lining sheet 20 by a fixing device consisting of a stop washer 31 located between the
is supported and fixed. The stop washer 31 is made of ultra-high molecular weight polyethylene, similar to the material of the lining sheet 20. In this case as well, a stainless steel pot 50 is provided as in FIG. 6A. FIG. 6-8 shows the part C-C in FIG. 1, which is for a corner that engages a bolt 33 welded to the base metal 1, a T-nut 32 screwed thereto, and a nut engaging step 41. Two left and right lining sheets 20 with a gap between them are fixed by the member 40. Figure 6 2 and E are D- in Figure 1.
The cross sections corresponding to D and E-E are shown, respectively.
A base material 1, a lining sheet 20 having a tapered portion 21 and a bolt hole 22, a stop washer 31, a T-nut 32, a bolt 33}, and a corner member having a nut engaging step portion 41, a bolt hole 42, and a tapered portion 43 4
The relationship with 0 is shown. As shown in FIGS. 6A to 6E below, the lining sheet 20 is supported by the stop washer 31 and the corner member 40 that engages with the T-nut 32 at the stepped portion 41. It is possible to slide on the surface of the base material 1 even when there is thermal expansion or contraction.

In particular, as shown in FIG. 6C, a gap is provided between the left and right sheets 20, and as shown in FIGS. Furthermore, since there is sufficient clearance in the engagement relationship between the nut 32 and the corner member 40, the above-mentioned sliding movement is sufficiently possible. Moreover, even if this sliding occurs, the corner members 40 and stop washers 31 are made of the same material as the lining sheet 20, so the sheet 2
It does not affect wear etc. of 0. Note that the knock-off bolt 33 has a small diameter part, as shown in FIG. It is removed using the diameter part.

}, the corner member 40 is as shown in the figure,
The cross section is U-shaped, and a T-nut 32 is inserted into the U-shaped opening.
The T-nut 32 is not limited to a structure in which a stepped portion 41 for engagement with the opening is provided so that the opening of the T-nut 32 is located within the corner member 40, and the T-nut 32 has a cross section such as a stop washer 31A on the soil surface. An engagement step is provided to engage with the ears of the 32-hole nut, the 32-hole T-nut is positioned outside the corner member, and a cap is provided on the top surface of the T-nut. In this case, the outer surface of the corner member may be made flat, and in this way, each adjacent lining sheet 20 of a plurality of lining sheets 20 placed on the base material at a certain distance may be used.
Any material that can fix the lining sheet onto the base material by extending the corner member 20 over the opposite sides of the corner member 20 and pressing it toward the base material with a fixing device such as a bolt or nut may be used. In the present invention, since the above-mentioned ultra-high molecular weight polyethylene is used, the conventional problems of adhesion and surface abrasion are completely solved.

The excellent sliding properties of μ=0.03 to 0.08 and excellent wear resistance greatly contribute to solving this problem. Moreover, the unique lining means of the present invention made it possible to completely eliminate the effects of thermal expansion and contraction.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing an embodiment of the present invention. FIG. 2 is an explanatory diagram showing a lining sheet. Third
Figures A, C and C are explanatory diagrams showing corner members. FIG. 4A is an explanatory diagram showing another corner member.
FIGS. 5A, 5B, and 5C are explanatory diagrams showing a stop washer, a T-nut, and a bolt, respectively. Figure 6 A, Mouth,
C, 2, and H are A-A, B-B, respectively, in Figure 1.
It is a sectional view taken along CC, DD, and EE. Explanation of symbols, 1... Hotsuba base material, 10...
Hotsupa 1, 20...Lining sheet, 21
...Tapered part, 22...Bolt hole,
30...Fixing device, 31...Stop washer, 32...T nut, 33...
... Bolt, 40 ... Corner member, 41.
...Nut engagement stepped portion, 42...Bolt hole, 43...Tapered portion, 50...Stainless steel hook.

Claims (1)

[Claims] 1. Install multiple bolts on the base material to be lined,
A plurality of lining sheets made of a plastic material having high wear resistance and good sliding properties are each provided with a first hole having a diameter larger than the diameter of the bolt, and are arranged at regular intervals to form the first hole. The bolt is passed through the bolt through the stop washer having a diameter larger than that of the first hole, and has an ear portion that engages with the stop washer, and the body portion has a T-shaped side surface having a smaller diameter than the first hole. is supported on the base material by a first nut, and has a second nut having a width large enough to extend over the opposite sides of adjacent lining sheets of the plurality of lining sheets and having a diameter larger than the bolt. A long member having a hole is stretched over at least the opposite left and right sides of each adjacent sheet, and a bolt is passed through the second hole, so that the elongated member has an ear portion having a diameter larger than that of the second hole. and pressing the elongated member toward the base material from a T-shaped second nut whose body has a smaller diameter than the second hole;
A lining surface characterized in that the lining sheet is supported on a base material.