CN210285596U - Ceramic-faced wear-resistant integral fabric core rubber conveying belt for underground mining - Google Patents

Abstract

The utility model discloses a ceramic veneering wear-resistant integral fabric core rubber conveyer belt for underground mining, which comprises an upper covering rubber, a core layer and a lower covering rubber which are arranged from outside to inside in sequence; the core layer is an integral fabric core; the outer surface of the upper covering glue is covered by a ceramic veneer layer; the ceramic veneer layer comprises a rubber veneer layer formed by regularly arranging polygonal rubber sheets, and the polygonal rubber sheets are correspondingly provided with ceramic sheets; a groove is arranged between two adjacent ceramic plates. The utility model discloses a wear-resisting type of pottery wainscot is whole fabric core rubber conveyer belt for underground mining not only has higher wear resistance, simultaneously, structural design is reasonable, and the potsherd is pasted and is difficult for droing in rubber conveyer belt surface, and industrialization prospect is good.

Description

Ceramic-faced wear-resistant integral fabric core rubber conveying belt for underground mining

Technical Field

The utility model relates to a rubber conveyer belt field, in particular to wear-resisting type of pottery wainscot is whole fabric core rubber conveyer belt for underground mining.

Background

The rubber conveyer belt is widely applied to material transportation in the fields of chemical industry, ports, steel, building material construction, mining, traffic and the like. Especially for underground mining industry, the belt core mechanical strength of the integral fabric core rubber conveying belt is high, a large amount of bulk ores and powder can be continuously conveyed in a long distance, and the belt core rubber conveying belt is widely used in a mining plant. However, since most of ores which are just mined are blocks with sharp edges and corners, and rubber conveyor belts are used for transferring and are easy to abrade or scratch the surface covering rubber of the conveyor belts, the abrasion resistance of the rubber conveyor belts is a key factor for determining the service life of the rubber conveyor belts, but the abrasion resistance of the rubber conveyor belts is limited, the service life of the rubber conveyor belts under the abrasion working condition is generally short, for example, the rubber conveyor belts used in mines generally have the service life of only 3-5 months, and some of the rubber conveyor belts are even shorter.

The wear-resisting property of the ceramic is far superior to that of rubber, and if the ceramic plate can be used for covering the surface of the rubber conveying belt, the wear-resisting property of the rubber conveying belt is greatly improved, and the service life of the rubber conveying belt is prolonged. However, the ceramic sheet is provided on the surface of the rubber belt, which has the following problems: rubber conveyor needs to use with the cylinder cooperation, with cylinder complex position, can follow the cylinder bending, in this time, if the conveyer belt surface is equipped with the potsherd, because the potsherd can not take place to warp along with rubber together, rubber can be to the potsherd at the inboard power of the directional conveyer belt of joint position effect, the power effect is equivalent to the action of peeling off rubber with the potsherd, under the repeated action, the potsherd drops very easily, rubber conveyor's life still can't guarantee to unable industrialization.

At present, the related technology of applying ceramics to rubber products is rarely reported at home and abroad, and the rubber conveyor belt products with higher wear resistance by covering the rubber surface with ceramics are not smelly. Therefore, how to firmly combine the ceramic plate and the surface of the rubber conveying belt is a difficult problem which is faced by technical personnel, and needs to be solved urgently.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned problem that exists among the prior art, the utility model provides a ceramic wainscot wear-resisting type is whole fabric core rubber conveyer belt for underground mining. The utility model discloses a wear-resisting type of pottery wainscot is whole fabric core rubber conveyer belt for underground mining not only has higher wear resistance, simultaneously, structural design is reasonable, and the potsherd is pasted and is difficult for droing in rubber conveyer belt surface, and industrialization prospect is good.

The technical scheme is as follows: the utility model discloses a ceramic veneered wear-resistant integral fabric core rubber conveyer belt for underground mining, which comprises an upper covering rubber, a core layer and a lower covering rubber which are arranged from outside to inside in sequence; the core layer is an integral fabric core; the outer surface of the upper covering glue is covered by a ceramic veneer layer; the ceramic veneer layer comprises a rubber veneer layer formed by regularly arranging polygonal rubber sheets, and the polygonal rubber sheets are correspondingly provided with ceramic sheets; a groove is arranged between two adjacent ceramic plates.

Compared with the prior art, the utility model discloses a wear-resisting type underground mining of ceramic wainscot is with whole fabric core rubber conveyer belt has following progress:

1) the wear resistance is good: the ceramic-faced wear-resistant integral fabric core rubber conveyer belt for underground mining of the utility model improves the wear resistance of the rubber conveyer belt by arranging the ceramic facing layer on the surface of the upper covering rubber, thereby prolonging the service life of the rubber conveyer belt under the wear working condition such as a mine field;

2) it is rational in infrastructure: the ceramic veneered wear-resistant integral fabric core rubber conveyer belt for underground mining has reasonable structural design, the ceramic plates are arranged on the polygonal rubber sheets which are relatively independent, and when the rubber conveyer belt is bent along the roller, the polygonal rubber sheets on the surface deform less, so that the acting force of the polygonal rubber sheets on the ceramic plates is also less, and the ceramic plates are not easy to fall off, thereby ensuring that the rubber conveyer belt has longer service life on the other hand and providing conditions for industrialization; in addition, the grooves are formed between the adjacent ceramic plates, so that the surface of the rubber conveying belt is provided with patterns, the friction performance is good, sliding friction can be prevented when materials fall on the surface of the conveying belt, and the wear resistance of the conveying belt is further ensured.

As to the aforesaid the utility model discloses a wear-resisting type underground mining of ceramic wainscot is with an optimization of whole fabric core rubber conveyer belt: the side surface of the ceramic plate is provided with a step protruding outwards to divide the ceramic plate into a combining part and a working part; the lower half portion of the step and the joint portion are embedded together in the polygonal rubber sheet. The inventor finds out through groping that the bonding strength of the ceramic plate and the polygonal rubber plate can be further improved, and the ceramic plate and the polygonal rubber plate are more difficult to fall off. As a further optimization, the joining portion and the working portion are symmetrical to each other with respect to the step. The ladder is located potsherd side middle part, and joint part and work portion longitudinal symmetry need not consider the positive and negative during production, are favorable to improving production efficiency.

As to the aforesaid the utility model discloses a wear-resisting type underground mining of ceramic wainscot is with an optimization of whole fabric core rubber conveyer belt: the ceramic sheet is provided with a plurality of holes which are filled with rubber bulges on the polygonal rubber sheet. The structure plays a role in further improving the bonding strength of the ceramic plate and the polygonal rubber plate.

As to the aforesaid the utility model discloses a wear-resisting type underground mining of ceramic wainscot is with an optimization of whole fabric core rubber conveyer belt: the ceramic plate is alumina ceramic. The alumina ceramic has good wear resistance, high mechanical strength and strong shock resistance, and the ceramic sheet is made of alumina ceramic and is not easy to crack.

As to the aforesaid the utility model discloses a wear-resisting type underground mining of ceramic wainscot is with an optimization of whole fabric core rubber conveyer belt: the polygonal rubber sheet can be in a diamond shape or a regular hexagon shape.

As to the aforesaid the utility model discloses a wear-resisting type underground mining of ceramic wainscot is with an optimization of whole fabric core rubber conveyer belt: the size of the ceramic plate in the length direction of the rubber conveying belt does not exceed 1/15 of the minimum roller diameter determined according to GB/T34629 and 2017. At this time, the ceramic sheet is not easy to fall off or break.

As to the aforesaid the utility model discloses a wear-resisting type underground mining of ceramic wainscot is with an optimization of whole fabric core rubber conveyer belt: the polygonal rubber sheet is in a diamond shape, and the short diagonal line of the polygonal rubber sheet is parallel to the length direction of the conveying belt; the length of the short diagonal does not exceed 1/15 which is the minimum drum diameter determined according to GB/T34629-2017. At this time, the ceramic sheet is not easy to fall off or break. Under the condition that the short diagonal line is determined, the longer the long diagonal line is, the larger the area of the ceramic sheet is, the fewer the number of the ceramic sheets is required, and the production efficiency is favorably improved, but simultaneously, the lower the strength of the ceramic sheet in the direction of the long diagonal line is, the ceramic sheet is easy to be impacted by materials to break, and as a preferred scheme, the length of the long diagonal line of the polygonal rubber sheet is not more than 1.5 times of the length of the short diagonal line of the polygonal rubber sheet.

As to the aforesaid the utility model discloses a wear-resisting type underground mining of ceramic wainscot is with an optimization of whole fabric core rubber conveyer belt: the polygonal rubber sheet is in a regular hexagon shape, one side of the polygonal rubber sheet is parallel to the width direction of the conveying belt, and the distance between the two parallel sides does not exceed 1/15 of the minimum roller diameter determined according to GB/T34629 and 2017. At this time, the ceramic sheet is not easy to fall off or break.

Drawings

FIG. 1 is a schematic structural view of the ceramic-faced wear-resistant integral fabric core rubber conveyor belt for underground mining of the present invention;

FIG. 2 is an enlarged partial view of the ceramic-faced wear-resistant integral fabric core rubber conveyor belt for underground mining of the present invention of FIG. 1;

FIG. 3 is a front view of the ceramic-faced wear-resistant integral fabric core rubber conveyor belt for underground mining of the present invention;

FIG. 4 is a C-direction cross-sectional view of the ceramic-faced wear-resistant integral fabric core rubber conveyor belt for underground mining of the present invention of FIG. 3;

FIG. 5 is an enlarged partial view of the ceramic faced wear resistant integral fabric core rubber conveyor belt for underground mining of the present invention of FIG. 3;

fig. 6 is a schematic structural view of the ceramic sheet and the polygonal rubber sheet in embodiment 1 of the present invention after being combined;

fig. 7 is a cross-sectional view of the structure of the ceramic plate and the polygonal rubber plate in embodiment 1 of the present invention after being combined;

fig. 8 is a schematic structural view of a ceramic sheet and a polygonal rubber sheet combined together according to embodiment 2 of the present invention;

fig. 9 is a cross-sectional view of the structure of the ceramic plate and the polygonal rubber plate in embodiment 2 of the present invention after being combined;

fig. 10 is a schematic structural view of a ceramic sheet and a polygonal rubber sheet in embodiment 3 of the present invention after being combined;

fig. 11 is a cross-sectional view of the structure of the ceramic plate and the polygonal rubber plate in embodiment 3 of the present invention after being combined;

fig. 12 is a schematic structural view of a ceramic sheet and a polygonal rubber sheet according to embodiment 4 of the present invention after being combined;

fig. 13 is a cross-sectional view of the structure of the ceramic plate and the polygonal rubber plate in embodiment 4 of the present invention after being combined;

fig. 14 is a schematic view of the ceramic sheet edge and the polygonal rubber sheet of embodiment 1 of the present invention after the edge is cut and separated by the knife;

fig. 15 is a schematic view of the ceramic sheet edge and the polygonal rubber sheet of embodiment 2 of the present invention after the edge is cut and separated by the knife;

FIG. 16 is a schematic structural view of a rubber conveyor belt of a comparative example;

FIG. 17 is an enlarged fragmentary view of the rubber conveyor belt of the comparative example in FIG. 16;

fig. 18 is a schematic structural view of the mold of the present invention;

fig. 19 is an enlarged view of a portion of the mold of fig. 18;

FIG. 20 is a schematic view of the two molds in a splicing state;

fig. 21 is a partially enlarged view of the mold joint of fig. 20.

Reference numerals: 1-covering glue; 2-a core layer; 3-ceramic veneer layer, 31-polygonal rubber sheet, 311-rubber bulge, 32-ceramic sheet, 321-hole cavity, 322-ladder, 323-combination part, 324-working part and 33-groove; 4-lower covering glue; and 5, molding.

Detailed Description

The technical solution of the present invention will be further specifically described below by means of specific embodiments and with reference to the accompanying drawings. (only a part of the belt is shown in the figure, the belt is actually annular)

The prior art rubber conveyor belt is generally composed of an upper cover rubber 1, a core layer 2 and a lower cover rubber 4. Referring to fig. 1-7, the ceramic-faced wear-resistant integral fabric core rubber conveyor belt for underground mining of the present invention comprises an upper cover rubber 1, a core layer 2 and a lower cover rubber 4, which are sequentially arranged from outside to inside, wherein the upper cover rubber 1, the core layer 2 and the lower cover rubber 4 form a main body; the core layer 2 is an integral fabric core; the outer surface of the upper covering glue 1 is covered by a ceramic veneer layer 3; the ceramic veneer layer 3 comprises a rubber veneer layer formed by regularly arranging polygonal rubber sheets 31, and ceramic sheets 32 are correspondingly arranged on the polygonal rubber sheets 31; the two adjacent ceramic sheets 32 have a groove 33 therebetween.

The rubber conveying belt needs to be matched with a roller for use, the smaller the diameter of the roller is, the larger the bending degree of the part of the rubber conveying belt matched with the roller is, and the applicable minimum roller diameter can be determined according to the national standard GB/T34629-. To the utility model discloses a wear-resisting type of ceramic wainscot is brought with whole fabric core rubber conveyor, and the cylinder diameter is less, and the ceramic paster just drops more easily or splits, and experiments show that the ceramic paster is difficult to take place to drop or split when the maximum dimension of conveyer belt length direction (circumference) is no longer than cylinder diameter 1/15. When the technical scheme of the utility model is implemented, the ceramic paster can be got according to the 1/15 of GB/T34629-. It should be noted that the maximum size of the ceramic patch in the length direction of the conveyor belt does not need to be smaller than or equal to 1/15 of the diameter of the minimum roller determined according to GB/T34629-2017, and when the size is larger, the thickness of the ceramic patch should be designed to be thinner, and in this case, the ceramic patch is easily broken but not easily falls off, and the appearance of the ceramic patch is affected after the ceramic patch is broken, and noise is generated due to mutual extrusion and friction of ceramics on both sides of the crack, but the wear resistance of the conveyor belt is not affected, and the conveyor belt can still be used.

Example 1

Referring to fig. 1 to 7, in the embodiment, the main body of the ceramic-faced wear-resistant integral fabric core rubber conveyor belt for underground mining is an integral fabric core conveyor belt, and the technical requirements are implemented according to GB/T31256-2014 specification of fabric core conveyor belt for underground mining with a conveyor belt having a rubber or plastic coating, and the specific parameters are as follows: the length is 200m, wide 1000mm, whole fabric core, fabric warp direction material are dacron and nylon blending (EP), and the latitudinal direction material is dacron and cotton blending (PB), and warp direction braided wire material is cotton (B), and minimum full thickness tensile strength is 3000N/mm, and the thickness of upper cover glue 1 is 6mm, and the thickness of lower cover glue 4 is 3 mm.

In this embodiment, the polygonal rubber sheet 31 and the ceramic sheet 32 are both rhombus-shaped, and the long diagonal of the polygonal rubber sheet 31 is parallel to the width direction of the conveyor belt.

The minimum roller diameter of the ceramic-faced wear-resistant integral fabric core rubber conveyor belt for underground mining of the embodiment is determined to be 630mm according to GB/T31256-2014. The length of the short diagonal of the ceramic sheet 32 is taken as 42mm, and the length of the long diagonal is taken as 63 mm.

In this embodiment, two cavities 321 are disposed on the ceramic sheet 32 and located on two sides of the long diagonal line, respectively, and the cavities 321 are filled with the rubber protrusions 311 on the polygonal rubber sheet 31. (during vulcanization molding, the rubber has a certain fluidity, and under the action of pressure, part of the rubber material of the polygonal rubber sheet 31 flows into the hole 321 to form the rubber protrusion 311)

In this embodiment, the ceramic sheet 32 is alumina ceramic. The side surface of the ceramic sheet 32 is provided with a step 322 protruding outwards, which divides the ceramic sheet 32 into a combining part 323 and a working part 324; the lower half of the step 322 is embedded in the polygonal rubber sheet 31 together with the joint 323. The coupling portion 323 and the working portion 324 are symmetrical to each other with respect to the step 322. The top of the step 322 is a cambered surface; the top of the step 322 is flush with the side of the polygonal rubber sheet 31 in the vertical direction. The ceramic sheet 32 has a thickness of 3mm and a step height of 1.5 mm; the overall thickness of the ceramic sheet 32 and the polygonal rubber sheet 31 is 5 mm.

Example 2

Unlike embodiment 1, referring to fig. 8 to 9, in the present embodiment, the side of the ceramic sheet 32 does not have a step, and the length of the long and short diagonal lines of the ceramic sheet 32 is 60mm and 39mm, respectively.

Example 3

Unlike embodiment 1, referring to fig. 10 to 11, in this embodiment, the ceramic sheet 32 does not have the cavity 321.

Example 4

Unlike embodiment 1, referring to fig. 12 to 13, in this embodiment, the polygonal rubber sheet 31 and the ceramic sheet 32 are in the shape of a regular hexagon, one side of which is parallel to the width direction of the conveyor belt; the ceramic sheet 32 has a dimension of 42mm in the longitudinal direction of the conveyor belt (i.e., the distance between two sides parallel to each other is 42 mm).

Comparative example

Unlike example 1, referring to fig. 16 to 17, in the comparative example, the rubber patch layer is an integral rubber layer, instead of being formed by regularly arranging polygonal rubber pieces 31.

The conveyor belts of the above examples and comparative examples were tested under the test conditions shown in the following table.

And (3) test results: after the test of 48 hours, the separation of the ceramic sheet 32 from the rubber did not occur in any of the conveyor belts of examples 1-4; in the conveyor belt of the comparative example, about 40% of the ceramic sheets 32 were partially separated from the rubber, but were not completely peeled off, and the conditions of the 5 conveyor belts of comparative example 1 involved in the test were substantially the same, and no significant difference was observed. The ceramic sheet 32 on the conveyor belt of the comparative example has a phenomenon of local separation from rubber, and in practical use, the conveyor belt can be impacted by falling materials, so that the ceramic sheet 32 can fall off quickly after the local separation phenomenon. The above result shows that the ceramic sheet 32 in the technical scheme of the present application is not easy to fall off.

Referring to fig. 14 to 15, the edges of the ceramic sheet 32 in the conveyor belts of examples 1 and 2 were cut with a cutter, i.e., the edges of the ceramic sheet 32 were separated from the polygonal rubber sheet 31. The test was then carried out again under the experimental conditions indicated in the table above. And (3) test results: the separation behavior of the ceramic sheet 32 on the conveyor belt of example 1 ended at the root of the step and did not continue to spread toward the middle of the bottom surface of the ceramic sheet 32; the separation behavior of the ceramic sheet 32 on the conveyor belt of example 2 spreads toward the center of the bottom surface of the ceramic sheet 32. Therefore, the ceramic sheet 31 with the step 322 on the side surface is more difficult to fall off.

When the ceramic-faced wear-resistant integral fabric core rubber conveyor belt for underground mining of the utility model is manufactured, in order to prevent vulcanization molding, the polygonal rubber sheets 31 are connected into a whole, and a mold shown in figures 18 to 21 is needed. When vulcanization molding is carried out, the mixed rubber sheets of the lower covering rubber 4 are stacked according to the thickness requirement, then the core layer 2 is placed, then the mixed rubber sheets are stacked on the core layer 2 according to the thickness requirement of the upper covering rubber 1, finally the die is placed, the mixed rubber of the cut polygonal rubber sheets 31 and the matched ceramic patches 32 are sequentially placed in the hole positions of the die, and then the vulcanization flat plate is closed to start vulcanization. In order to facilitate demoulding after vulcanization is finished, the hole wall of the mould is coated with a release agent in advance. The length of the mould can be the same as that of the vulcanizing flat plate; also can be shorter than a vulcanizing flat plate, and when in use, a plurality of moulds are spliced for use.

The grooves 33 of the present invention can be obtained in various ways, for example, as in embodiment 1, by providing the step 322 on the side surface of the ceramic sheet, the grooves 33 can be formed on the step by the two adjacent ceramic sheets 32; or as in embodiment 2, the area of the ceramic sheet 32 is designed to be smaller than that of the polygonal rubber sheet 31, the ceramic sheet 32 does not completely cover the polygonal rubber sheet 31, and the side surfaces of two adjacent ceramic sheets 32 have a spacing distance, so that a groove 33 can be formed; of course, other forms are also possible, for example, in which the ceramic sheet 32 does not completely cover the polygonal rubber sheet 31 as in embodiment 2, while the step 322 is provided on the side of the ceramic sheet as in embodiment 1, and in this case, the groove 33 may be formed as well.

The shape of the polygonal rubber sheet 31 of the present invention is not limited to diamond and regular hexagon, but also can be other polygons which can be regularly arranged to form a plane, such as isosceles triangle and square.

The above general description of the invention and the description of the specific embodiments thereof in this application should not be construed as limiting the invention. Those skilled in the art can add, reduce or combine the technical features disclosed in the above general description and/or the embodiments to form other technical solutions within the scope of the present application without departing from the constituent elements of the present invention.

Claims (10)

1. The ceramic-faced wear-resistant integral fabric core rubber conveyor belt for underground mining comprises an upper covering rubber (1), a core layer (2) and a lower covering rubber (4) which are sequentially arranged from outside to inside; the core layer (2) is an integral fabric core; the method is characterized in that: the outer surface of the upper covering glue (1) is covered by a ceramic veneer layer (3); the ceramic veneer layer (3) comprises a rubber veneer layer formed by regularly arranging polygonal rubber sheets (31), and the polygonal rubber sheets (31) are correspondingly provided with ceramic sheets (32); a groove (33) is arranged between two adjacent ceramic plates (32).

2. The ceramic faced, wear resistant, integral fabric core rubber conveyor belt for underground mining of claim 1, wherein: the side surface of the ceramic plate (32) is provided with a step (322) protruding outwards, so that the ceramic plate (32) is divided into a combining part (323) and a working part (324); the lower half of the step (322) is embedded in the polygonal rubber sheet (31) together with a joint part (323).

3. The ceramic faced, wear resistant, integral fabric core rubber conveyor belt for underground mining of claim 2, wherein: the coupling portion (323) and the working portion (324) are symmetrical to each other with respect to the step (322).

4. The ceramic faced, wear resistant, integral fabric core rubber conveyor belt for underground mining of claim 1, wherein: the ceramic sheet (32) is provided with a plurality of holes (321), and the holes (321) are filled with rubber protrusions (311) on the polygonal rubber sheet (31).

5. The ceramic faced, wear resistant, integral fabric core rubber conveyor belt for underground mining of claim 1, wherein: the ceramic sheet (32) is an alumina ceramic.

6. The ceramic faced, wear resistant, integral fabric core rubber conveyor belt for underground mining of claim 1, wherein: the polygonal rubber sheet (31) is in a diamond shape or a regular hexagon shape.

7. The ceramic-faced wear-resistant integral fabric core rubber conveyor belt for underground mining according to any one of claims 1 to 6, characterized in that: the ceramic sheet (32) has a dimension in the longitudinal direction of the rubber conveyor belt not exceeding 1/15 for the smallest roller diameter determined according to GB/T34629-2017.

8. The ceramic-faced wear-resistant integral fabric core rubber conveyor belt for underground mining according to any one of claims 1 to 6, characterized in that: the polygonal rubber sheet (31) is rhombic, and the short diagonal line of the polygonal rubber sheet (31) is parallel to the length direction of the conveying belt; the length of the short diagonal does not exceed 1/15 which is the minimum drum diameter determined according to GB/T34629-2017.

9. The ceramic faced, wear resistant, integral fabric core rubber conveyor belt for underground mining of claim 8, wherein: the length of the long diagonal of the polygonal rubber sheet (31) is not more than 1.5 times of the length of the short diagonal thereof.

10. The ceramic-faced wear-resistant integral fabric core rubber conveyor belt for underground mining according to any one of claims 1 to 6, characterized in that: the polygonal rubber sheet (31) is in a regular hexagon shape, one side of the polygonal rubber sheet (31) is parallel to the width direction of the conveying belt, and the distance between the two parallel sides does not exceed 1/15 of the minimum roller diameter determined according to GB/T34629 and 2017.

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