CN210259882U

CN210259882U - Aramid fabric framework of rubber conveyor belt and flame-retardant conveyor belt for coal mine

Info

Publication number: CN210259882U
Application number: CN201920703874.1U
Authority: CN
Inventors: 吴远滨; 刘波华
Original assignee: Zhejiang Fenfei Rubber & Plastic Products Co ltd
Current assignee: Zhejiang Fenfei Rubber & Plastic Products Co ltd
Priority date: 2019-05-16
Filing date: 2019-05-16
Publication date: 2020-04-07
Anticipated expiration: 2029-05-16

Abstract

The utility model relates to an aramid fabric framework of a rubber conveyor belt, which comprises aramid canvas; the aramid canvas is formed by weaving upper wefts, lower wefts, warps and fixing threads; the upper wefts and the lower wefts are arranged in an up-and-down symmetrical manner relative to the warps; each upper weft and the lower weft positioned right below the upper weft form a weft group; a fixing line A vertically interwoven with the weft group and a fixing line B vertically interwoven with the weft group in the reverse direction relative to the fixing line A are arranged between every two adjacent warps; the upper weft, the lower weft and the warp are aramid fiber ropes. The utility model discloses it has the characteristics that tensile strength is high and the extensibility is little to hungry rubber conveyor's aramid fiber fabric skeleton, and dimensional stability is good is fit for being applied to the conveyer belt that needs high strength, long distance and heavy freight volume field requirement, and economic benefits is showing. Correspondingly, the utility model also provides an use aforementioned aramid fabric skeleton's fire-retardant conveyer belt for colliery.

Description

Aramid fabric framework of rubber conveyor belt and flame-retardant conveyor belt for coal mine

Technical Field

The utility model relates to a conveyer belt (conveyer belt), in particular to rubber conveyor's aramid fiber fabric skeleton and fire-retardant conveyer belt for colliery.

Background

The conveyor belt is a composite product made of elastomer and framework material which is used in the belt conveyor belt and plays a role in bearing and conveying materials; the conveying belt has the characteristics of continuity, large-inclination-angle transportation and safe and convenient operation.

The flame-retardant conveyor belt for the coal mine is usually composed of a rubber layer and a framework layer, and a flame retardant is added into the rubber layer to ensure the flame-retardant effect of the conveyor belt. Due to the particularity of the working environment of the conveyor belt for the coal mine, the conveyor belt can work under the working conditions of high load, high impact, high heat generation and severe environment for a long time, so that the conveyor belt can bear higher alternating stress and load in the use process; this makes stable transmission and long-term use of the conveyer belt for coal mine more dependent on the performance of the framework material.

The existing framework materials of the coal mine conveyor belt are divided into a fiber rope and a metal rope, the metal rope is high in strength and good in impact resistance, but the warp-wise crimpness of the metal rope is small, so that the tensioning amount of the conveyor belt is small, and the service life of the belt body is shortened quickly during operation; when the coal mine conveyor belt adopts a common thread rope as a framework, the coal mine conveyor belt has the defect of poor fatigue resistance, and is easily subjected to the condition of transverse belt body tearing when applied to the coal mine industry; this has made a coal mine conveyor belt that is both impact resistant and tear resistant and that can be used for a long time desirable for the next study.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides an aramid fabric framework of a rubber conveyor belt; the high-strength high-elongation high-. Correspondingly, the utility model also provides an use aforementioned aramid fabric skeleton's fire-retardant conveyer belt for colliery.

To rubber conveyer belt skeleton, the utility model provides a technical scheme of its technical problem is: the aramid fabric framework of the rubber conveyor belt comprises aramid canvas; the aramid canvas is formed by weaving upper wefts, lower wefts, warps and fixing threads; the upper wefts and the lower wefts are arranged in an up-and-down symmetrical mode relative to the warps; each upper weft and the lower weft positioned right below the upper weft form a weft group; a fixing line A vertically interwoven with the weft group and a fixing line B vertically interwoven with the weft group in the reverse direction relative to the fixing line A are arranged between every two adjacent warps; the upper weft, the lower weft and the warp are aramid fiber ropes; the diameters of the upper weft and the lower weft are 1-2 mm; the diameter of the warp is 3-4 mm; the wire diameter of the fixed wire is 0.3-0.5 mm.

Compared with the prior art, the utility model discloses a rubber conveyor's aramid fabric skeleton has following progress: the aramid fabric framework of the rubber conveyor belt is aramid canvas with a specific structure and arrangement, and the strength utilization rate of the canvas is improved by reducing warp and weft interweaving points, so that the aramid fabric framework has the characteristics of high strength and low extension, the warp-wise curling degree of the conveyor belt when the framework is used for the conveyor belt is increased, and the belt body can still keep good stability after the conveyor belt is overturned and bent for many times; the warp and weft with specific wire diameters ensure the advantage of light weight of the framework, and simultaneously increase the strength of the framework in all directions, so that the tension of the framework is uniform, the belt body is not easy to break, and the anti-tearing and anti-puncturing performance is greatly increased; the aramid fabric framework of the rubber conveyor belt has good dimensional stability and small shrinkage and creep rate; the method is suitable for being applied to the conveying belt which needs high strength, long distance and large transportation field requirements so as to improve the economic benefit.

Preferably, the fixing line is a nylon thread rope. The impact resistance and the buffering performance of the nylon thread rope are good, so that the fixed aramid fabric framework can be well suitable for the environment with large instantaneous impact force, can help absorb sudden impact force, and has good protection effect on the framework. Further, the yarn density of the upper weft is 8-12, and correspondingly, the yarn density of the lower weft is 8-12. This upper and lower weft under arranging apart from can improve the grooving nature of the aramid fiber fabric skeleton area body when using at the conveyer belt, makes and uses the utility model discloses an aramid fiber fabric skeleton's of rubber conveyer belt conveying has the advantage that is difficult to the off tracking, conveys stably, has improved the efficiency in the use.

To the fire-retardant conveyer belt for the colliery, the utility model provides a technical scheme of its technical problem is: the flame-retardant conveyor belt for the coal mine comprises an upper rubber covering layer, a transition layer, a framework and a lower rubber covering layer which are sequentially arranged; the framework is the aramid fabric framework of the rubber conveyor belt; the warp of the aramid fiber canvas is vertical to the circumferential direction of the conveying belt; the upper surface of the rubber upper covering layer is an arc surface with the middle part sunken downwards.

Compared with the prior art, the utility model discloses a fire-retardant conveyer belt for coal mine has following progress: when the aramid fiber canvas is used as a framework, the combination degree of the upper rubber covering layer and the lower rubber covering layer with the aramid fiber canvas is high, the conveying belt can obtain high strength and has flexibility and light weight of fiber materials, the power consumption of the conveyor can be reduced, and the long service life can be ensured; the rubber upper covering layer with the cambered surface enables materials to be gathered in the middle of the rubber upper covering layer when the conveyor belt conveys the materials, so that the phenomenon that the materials are scattered due to shaking and the like is reduced, the internal stress of the conveyor belt when the conveyor belt passes through the transmission roller is reduced, and the stability of the belt body is improved; the cambered surface after the one-time circulating operation can also better help the heat dissipation of the belt body, and the use safety is improved.

As the optimization, the arc angle α of cambered surface is 3 ~ 8 degrees this moment, and the stability of the area body is the best, and life is guaranteed, and further, the thickness L of rubber upper cladding is 10 ~ 20mm, the thickness of rubber lower cladding is 8 ~ 12mm, the thickness of transition layer is 4 ~ 8mm, rubber upper cladding and rubber lower cladding of specific thickness combination, make the utility model discloses a fire-retardant conveying has fine tear resistance and anti-stab cutting ability for the coal mine, has huge help to using the conveying for a long time.

Preferably, the upper rubber covering layer, the transition layer, the framework and the lower rubber covering layer are formed by vulcanization adhesion. The conveying belt can be guaranteed to have high joint efficiency, the service life of the conveying belt is prolonged, the process is simple and easy to master, and the conveying belt is suitable for being applied to large-scale production.

Drawings

FIG. 1 is a schematic structural diagram of a framework of the aramid fabric for coal mines of the present invention;

fig. 2 is a schematic transverse cross-sectional view of a belt body of the flame-retardant conveyor belt for coal mines according to the present invention.

Reference numerals: 1-aramid canvas, 11-upper weft, 12-lower weft, 13-warp, 14-A fixed line and 15-B fixed line; 2-covering layer on rubber, 21-cambered surface; 3-a rubber lower covering layer; 4-transition layer.

Detailed Description

The technical solution of the present invention is further specifically described below by way of specific embodiments and with reference to the accompanying drawings.

Example 1:

referring to fig. 1, the aramid fabric framework of the rubber conveyor belt of the present invention includes aramid canvas 1; the aramid fiber canvas 1 is formed by weaving an upper weft 11, a lower weft 12, a warp 13 and a fixing thread 14; the upper wefts 11 and the lower wefts 12 are arranged up and down symmetrically relative to the warps 13; each upper weft 11 and the lower weft 12 positioned right below the upper weft form a weft group; a fixing line A14 vertically interwoven with the weft group and a fixing line B15 vertically interwoven with the weft group in the reverse direction relative to the fixing line A14 are arranged between two adjacent warps 13; the upper weft 11, the lower weft 12 and the warp 13 are aramid fiber ropes; the wire diameter of the upper weft 11 and the lower weft 12 is 1.5 mm; the diameter of the warp 13 is 3.4 mm; the wire diameter of the fixed wire 14 is 0.4 mm; the fixing thread 14 is a nylon thread, the yarn density of the upper and lower wefts 11 is 10, and correspondingly, the yarn density of the lower and lower wefts 12 is also 10. (yarn Density: number of yarns arranged within 1 inch)

Example 2:

unlike embodiment 1, in this embodiment, the diameter of the upper weft 11 and the lower weft 12 is 1 mm; the diameter of the warp 13 is 3 mm; the wire diameter of the fixed wire 14 is 0.3 mm; the upper weft threads 11 have a thread density of 8, and correspondingly, the lower weft threads 12 also have a thread density of 8.

Example 3:

unlike embodiment 1, in this embodiment, the diameter of the upper weft 11 and the lower weft 12 is 2 mm; the diameter of the warp 13 is 4 mm; the wire diameter of the fixed wire 14 is 0.5 mm; the upper weft threads 11 have a thread density of 12, and correspondingly, the lower weft threads 12 also have a thread density of 12.

Application example 1:

referring to fig. 2, the utility model discloses a fire-retardant conveyer belt for coal mine, including rubber upper covering layer 2, transition layer 4, skeleton and rubber lower covering layer 3 that set gradually, the skeleton is the aramid fabric skeleton of the rubber conveyer belt of embodiment 1, aramid canvas 1's warp 13 is perpendicular with conveyer belt circumference, the upper surface of rubber upper covering layer 2 is the cambered surface 21 that the middle part is sunken downwards, the arc angle α of cambered surface 21 is 5 degrees, the thickness of rubber upper covering layer 2 is 15mm, the thickness of rubber lower covering layer 3 is 10mm, the thickness of transition layer 4 is 6mm, rubber upper covering layer 2, transition layer 4, skeleton and rubber lower covering layer 3 are through vulcanization bonding shaping.

Application example 2:

different from the application example 1, in the embodiment, the framework is the aramid fabric framework of the rubber conveyor belt in the embodiment 2, the arc angle α of the arc surface 21 is 3 degrees, the thickness of the upper rubber covering layer 2 is 20mm, the thickness of the lower rubber covering layer 3 is 8mm, and the thickness of the transition layer 4 is 4 mm.

Application example 3:

different from the application example 1, in the embodiment, the framework is the aramid fabric framework of the rubber conveyor belt in the embodiment 3, the arc angle α of the arc surface 21 is 8 degrees, the thickness of the upper rubber covering layer 2 is 10mm, the thickness of the lower rubber covering layer 3 is 12mm, and the thickness of the transition layer 4 is 8 mm.

The aramid fiber fabric skeleton of rubber conveyor belt and the fire-retardant conveyer belt homoenergetic for the colliery of above-mentioned each embodiment realize the utility model aims at, wherein, embodiment 1 is the best embodiment, and application example 1 is the best application example. The utility model discloses a rubber conveyor's aramid fiber fabric skeleton can also be made by aramid fiber canvas 1 gumming. The utility model discloses a rubber conveyor's aramid fabric skeleton can also be applied to on V area, conveyer belt etc. relevant product.

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

1. Aramid fabric skeleton of rubber conveyer belt, its characterized in that: comprises aramid fiber canvas (1); the aramid canvas (1) is formed by weaving upper wefts (11), lower wefts (12), warps (13) and fixing threads (14); the upper wefts (11) and the lower wefts (12) are arranged in an up-and-down symmetrical mode relative to the warps (13); each upper weft (11) and the lower weft (12) positioned right below the upper weft form a weft group; a fixing line A (14) which is vertically interwoven with the weft group and a fixing line B (15) which is vertically interwoven with the weft group in the reverse direction relative to the fixing line A (14) are arranged between two adjacent warps (13); the upper weft (11), the lower weft (12) and the warp (13) are aramid fiber ropes; the diameters of the upper weft (11) and the lower weft (12) are 1-2 mm; the diameter of the warp (13) is 3-4 mm; the wire diameter of the fixed wire (14) is 0.3-0.5 mm.

2. The aramid fabric framework of a rubber conveyor belt according to claim 1, characterized in that: the fixing line (14) is a nylon thread rope.

3. The aramid fabric framework of a rubber conveyor belt according to claim 2, characterized in that: the yarn density of the upper weft (11) is 8-12, and correspondingly, the yarn density of the lower weft (12) is 8-12.

4. The flame-retardant conveyor belt for the coal mine comprises an upper rubber covering layer (2), a transition layer (4), a framework and a lower rubber covering layer (3) which are sequentially arranged; the method is characterized in that: the carcass is the aramid fabric carcass of the rubber conveyor belt of claim 1, 2 or 3; warp (13) of the aramid fiber canvas (1) is vertical to the circumferential direction of the conveying belt; the upper surface of the rubber upper covering layer (2) is an arc surface (21) with a downward concave middle part.

5. The flame-retardant conveyor belt for the coal mine according to claim 4, wherein the arc angle α of the arc surface (21) is 3-8 degrees.

6. The flame retardant conveyor belt for coal mines as set forth in claim 5, wherein: the thickness L of the rubber upper covering layer (2) is 10-20 mm; the thickness of the rubber lower covering layer (3) is 8-12 mm; the thickness of the transition layer (4) is 4-8 mm.

7. A fire retardant conveyor belt for coal mines as set forth in any of claims 4, 5 or 6 wherein: the rubber upper covering layer (2), the transition layer (4), the framework and the rubber lower covering layer (3) are formed through vulcanization adhesion.