阅读说明：本技术 一种输煤机皮带的更换方法 (Method for replacing belt of coal conveyor ) 是由 林盛贤 刘磊 许卓元 刘兴 张国明 于 2020-04-08 设计创作，主要内容包括：本发明公开了一种输煤机皮带的更换方法,包括以下步骤：切断旧皮带,将所述旧皮带分成更换部分和保留部分；吊装新皮带,将所述新皮带的端头牵引至所述更换部分的其中一个切断口处进行连接；在所述更换部分的另一切断口处连接钢丝绳,并将所述钢丝绳的一端与动力部件连接；启动动力部件,所述旧皮带在所述钢丝绳的牵引下从输煤机的滚轴上拉出,同时所述更换部分牵引所述新皮带铺设到输煤机的滚轴上；将所述新皮带与所述保留部分进行驳接。更换旧皮带时,能够使得新皮带与旧皮带的更换同时进行,有效缩短了输煤机皮带的更换时间,减小输煤机的停机时长。(The invention discloses a method for replacing a belt of a coal conveyor, which comprises the following steps: cutting off an old belt, and dividing the old belt into a replacement part and a reserved part; hoisting a new belt, and drawing the end of the new belt to one of the cut-off parts of the replacement part for connection; connecting a steel wire rope at the other cut-off of the replacing part, and connecting one end of the steel wire rope with a power part; starting a power component, pulling the old belt out of a roller of the coal conveyor under the traction of the steel wire rope, and simultaneously pulling the new belt to be laid on the roller of the coal conveyor by the replacement part; and connecting the new belt with the reserved part. When the old belt is replaced, the new belt and the old belt can be replaced simultaneously, the replacement time of the belt of the coal conveyor is effectively shortened, and the shutdown time of the coal conveyor is shortened.)

1. A method for replacing a belt of a coal conveyor is characterized in that: the method comprises the following steps:

cutting the old belt, dividing the old belt into a replacement part (11) and a reserved part (12);

hoisting a new belt (2), and drawing the end of the new belt (2) to one of the cut-off parts of the replacing part (11) for connection;

a steel wire rope (3) is connected to the other cut of the replacing part (11), and one end of the steel wire rope (3) is connected with the power component (4);

starting a power component (4), pulling the old belt out of a roller (7) of the coal conveyor under the traction of the steel wire rope (3), and simultaneously pulling the new belt (2) to be laid on the roller (7) of the coal conveyor by the replacement part (11);

the new belt (2) is docked with the reserved portion (12).

2. The method of replacing a coal conveyor belt as defined in claim 1, wherein: and before the old belt is cut off, removing the tension of the old belt.

3. The method of replacing a coal conveyor belt as defined in claim 1, wherein: after the old belt is cut, a belt clamping device (101) is arranged on the old belt to fix the reserved part (12).

4. The method of replacing a coal conveyor belt as defined in claim 1, wherein: a roller is arranged at the connection of the replacement part (11) and the steel cable (3) so that the replacement part (11) can move on the roller.

5. The method of replacing a coal conveyor belt as defined in claim 1, wherein: one side of the coal conveyor is provided with a cargo lifting well (8), the power part (4) is arranged at the top of the cargo lifting well (8), the bottom of the cargo lifting well (8) is provided with a first fixed pulley (5), and one end of the steel wire rope (3) extends into the cargo lifting well (8) and bypasses the first fixed pulley (5) and the power part (4) to be connected.

6. The method of replacing a coal conveyor belt as defined in claim 5, wherein: and a second fixed pulley (6) is fixed on the inner wall of the hoisted well (8), and the steel wire rope (3) successively bypasses the second fixed pulley (6) and the first fixed pulley (5) and is connected with the power component (4).

7. The method of replacing a coal conveyor belt as defined in claim 6, wherein: the power part (4) comprises an electric hoist, and the steel wire rope (3) is connected with a hook of the electric hoist after bypassing the first fixed pulley (5).

8. The method of replacing a coal conveyor belt as defined in claim 1, wherein: the new belt (2) is docked with the reserved portion (12) by a vulcanizer.

9. The method of replacing a coal conveyor belt as defined in claim 8, wherein: when new belt (2) with remain part (12) overlap joint, overlap joint earlier new belt (2) tip with the junction that remains part (12), overlap joint again new belt (2) afterbody with the junction that remains part (12).

10. The method of replacing a coal conveyor belt as defined in claim 1, wherein: and when the new belt (2) is hoisted, the new belt (2) is wound on a roller (10) and hoisted above the old belt.

Technical Field

The invention is used in the field of coal conveyors, and particularly relates to a method for replacing a belt of a coal conveyor.

Background

At present, a method for replacing a belt of a coal conveyor generally comprises the steps of dragging a steel wire rope on an old belt, dragging the old belt section by pulling the steel wire rope by a chain block manually, dragging the steel wire rope on a new belt when laying the new belt, and dragging and dropping the new belt on the coal conveyor by the chain block manually. The method has long operation time, and the dragging and dropping of the new belt and the old belt can be completed for a plurality of days, so that the shutdown time of the coal conveyor is too long.

Disclosure of Invention

The invention aims to solve at least one technical problem in the prior art and provides a method for replacing a belt of a coal conveyor, which can shorten the replacement time of the belt of the coal conveyor and reduce the shutdown time of the coal conveyor.

The technical scheme adopted by the invention for solving the technical problems is as follows: a method for replacing a belt of a coal conveyor comprises the following steps:

cutting off an old belt, and dividing the old belt into a replacement part and a reserved part;

hoisting a new belt, and drawing the end of the new belt to one of the cut-off parts of the replacement part for connection;

connecting a steel wire rope at the other cut-off of the replacing part, and connecting one end of the steel wire rope with a power part;

starting a power component, pulling the old belt out of a roller of the coal conveyor under the traction of the steel wire rope, and simultaneously pulling the new belt to be laid on the roller of the coal conveyor by the replacement part;

and connecting the new belt with the reserved part.

Preferably, the tension of the old belt is removed before the old belt is cut.

Preferably, a belt clamping means is provided on the old belt after the old belt is cut to fix the replacement part and the remaining part.

Preferably, a roller is provided at a connection of the replacement part and the wire rope so that the old belt can move on the roller.

Preferably, one side of the coal conveyor is provided with a hoisted well, the power component is arranged at the top of the hoisted well, the bottom of the hoisted well is provided with a first fixed pulley, and one end of the steel wire rope extends into the hoisted well and bypasses the first fixed pulley to be connected with the power component.

Preferably, a second fixed pulley is fixed on the inner wall of the hoisted well, and the steel wire rope successively bypasses the second fixed pulley and the first fixed pulley to be connected with the power component.

Preferably, the power part comprises an electric hoist, and the steel wire rope is connected with a hook of the electric hoist after bypassing the first fixed pulley.

Preferably, the new belt is docked with the reserved portion by a vulcanizer.

Preferably, when the new belt is connected with the reserved part, the connection part of the end part of the new belt and the reserved part is connected firstly, and then the connection part of the tail part of the new belt and the reserved part is connected secondly.

Preferably, when the new belt is hoisted, the new belt is wound on a roller and hoisted above the old belt.

One of the above technical solutions has at least one of the following advantages or beneficial effects: when the old belt is replaced, the old belt is cut off to be divided into a replacing part and a reserved part, then the end of the new belt is connected with one of the cut-off openings of the replacing part, the other cut-off opening of the replacing part is connected with a steel wire rope, the steel wire rope is connected with an external power part, the power part drives the steel wire rope to pull out the replacing part, meanwhile, the replacing part pulls the new belt and lays the new belt on a roller shaft of a conveyor, and finally, the new belt and the reserved part are connected in a connection mode, so that the replacement of the new belt and the old belt is carried out simultaneously, the replacement time of a belt of a coal conveyor is effectively shortened, and the shutdown time of the.

Drawings

The invention will be further described with reference to the accompanying drawings in which:

fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the present invention, if directions (up, down, left, right, front, and rear) are described, it is only for convenience of describing the technical solution of the present invention, and it is not intended or implied that the technical features referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, it is not to be construed as limiting the present invention.

In the invention, the meaning of "a plurality" is one or more, the meaning of "a plurality" is more than two, and the terms of "more than", "less than", "more than" and the like are understood to exclude the number; the terms "above", "below", "within" and the like are understood to include the instant numbers. In the description of the present invention, if there is description of "first" and "second" only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the present invention, unless otherwise specifically limited, the terms "disposed," "mounted," "connected," and the like are to be understood in a broad sense, and for example, may be directly connected or indirectly connected through an intermediate; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be mechanically coupled, may be electrically coupled or may be capable of communicating with each other; either as communication within the two elements or as an interactive relationship of the two elements. The specific meaning of the above-mentioned words in the present invention can be reasonably determined by those skilled in the art in combination with the detailed contents of the technical solutions.

Referring to fig. 1, an embodiment of the present invention provides a method for replacing a belt of a coal conveyor, including the steps of:

cutting the old belt, dividing the old belt into a replacing part 11 and a reserved part 12, wherein the replacing part 11 is longer than the reserved part 12, hoisting the new belt 2, pulling the end of the new belt 2 to one of the cutting openings of the replacing part 11 for connection, for example, in the embodiment shown in fig. 1, pulling the end of the new belt 2 to the upper cutting opening of the replacing part 11 for simple connection with the replacing part 11. The wire rope 3 is connected at another cut of the replacement part 11, for example, in the embodiment shown in fig. 1, the wire rope 3 is bound at the lower cut of the replacement part 11, and then the other end of the wire rope 3 is extended to be connected with the power take-off of the power component 4.

And starting the power part 4, wherein the power part 4 drives the steel wire rope 3 to pull the replacing part 11 out of the roller 7 of the coal conveyor, the replacing part 11 pulls the new belt 2 to be paved on the roller 7 of the coal conveyor because the replacing part 11 is connected with the end of the new belt 2, and after the paving of the new belt 2 is finished, the new belt 2 is connected with the reserved part 12.

The replacement mode enables the replacement of the new belt and the old belt to be carried out simultaneously, can effectively shorten the replacement time of the belt of the coal conveyor, and reduces the shutdown time of the coal conveyor.

Referring to fig. 1, in some embodiments, when a new belt 2 is hoisted, the new belt 2 is wound on a drum 10 and hoisted above an old belt, and when the new belt 2 is replaced, the end of the new belt 2 wound on the drum 10 is directly pulled out to be connected with a cut-off opening at the upper part of a replacement part 11, so that the new belt 2 can be gradually released along with the rolling of the drum 10, and the release efficiency of the new belt 2 is improved.

The removal of the tension of the old belt before it is cut off prevents the tight belt from bouncing off to the operator when cutting off the old belt, and also facilitates the connection of the new belt 2 to the replacement part 11, for example in the embodiment shown in fig. 1, the removal of the tension of the belt by raising the weight 9 before cutting off the old belt.

Referring to fig. 1, in some embodiments, after the old belt is cut, a belt clamping device 101 is provided on the old belt to fix the remaining portion 12, so as to prevent the remaining portion 12 from falling and facilitate the connection of new and old belts at a later time. When the belt replacement of the replacement section 11 is completed, a new belt 2 is attached to the holding section 12, and finally the belt gripping device 101 is released.

In some embodiments, the roller is arranged at the joint of the replacing part 11 and the steel wire rope 3, specifically, the roller is arranged on the support of the belt roller 7, so that the replacing part 11 can move on the roller in the replacing process, the replacing part 11 is more convenient and quicker in the dragging process, the deviation of the replacing part 11 in the dragging process is avoided, and the belt replacing efficiency is improved.

Referring to fig. 1, one side of the coal conveyor is provided with a cargo lifting well 8, the power part 4 is arranged at the top of the cargo lifting well 8, the bottom of the cargo lifting well 8 is provided with a first fixed pulley 5, one end of the steel wire rope 3 extends into the cargo lifting well 8 and bypasses the first fixed pulley 5 to be connected with the power part 4, so that the height of the cargo lifting well 8 can be fully utilized, more new belts 2 can be dragged once, and the traction and binding times of the steel wire rope 3 and new and old belts are greatly reduced.

Referring to fig. 1, in some embodiments, a second fixed pulley 6 is fixed on the inner wall of the hoist shaft 8, and the steel wire rope 3 successively bypasses the second fixed pulley 6 and the first fixed pulley 5 to be connected with the power component 4, so that the steel wire rope 3 is prevented from directly contacting the hoist shaft 8 to generate friction, and the direction of the steel wire rope 3 is changed by using the fixed pulleys, thereby prolonging the running distance of the old belt in the hoist shaft 8 and further reducing the times of traction and binding of the steel wire rope 3 and the new and old belts.

The power part 4 comprises an electric hoist, the steel wire rope 3 is connected with a hook of the electric hoist after bypassing the first fixed pulley 5, the electric hoist has enough strength and rigidity, the action is accurate, the performance is stable, and a belt of a large-scale coal conveyor in a power plant can be driven.

In some embodiments, the new belt 2 and the reserved portion 12 are connected by a vulcanizing machine, and the connection between the new belt 2 and the reserved portion 12 is ensured to be firm.

In some embodiments, when the new belt 2 is connected with the reserved portion 12, the connection part of the end part of the new belt 2 and the reserved portion 12 is connected, and then the connection part of the tail part of the new belt 2 and the reserved portion 12 is connected, so that the placement of a vulcanizing machine can be facilitated when the vulcanizing connection is performed.

The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.