CN201713083U - Broken belt protector of belt conveyor - Google Patents

Abstract

The utility model discloses a broken belt catcher for a belt conveyor, the upper belt catcher includes an upper catcher dynamic part which can swing upwards under the action of gravity and an upper catcher static part fixed on the upper part of the frame , the upper catching moving part swings to and approaches the upper catching static part above it, and cooperates with the upper catching static part to form an upper clamping gap that can catch the upper broken belt; its lower tape catching part It includes the lower catch moving part that can swing downward under the action of gravity and the lower catch static part fixed on the lower part of the frame. The lower catch moving part swings to and approaches the lower catch static part below it , and form the lower clamping gap capable of capturing the lower fault zone in cooperation with the lower capture static subsection. The utility model does not rely on the reverse running of the belt to trigger the action when the belt is broken, but the sudden drop in the tension of the conveyor belt after the belt is broken, and relies on the gravity of the parts to trigger the action. Therefore, if the conveyor stops for a short time, there will be no misoperation.

Description

Belt conveyor broken belt catcher

technical field

The utility model relates to a broken belt catcher for a belt conveyor, which is suitable for the broken belts of the upper and lower belts of the belt conveyor conveyor belt for metallurgical mines, coal mines, ports, docks and power plants. Protect.

Background technique

At present, there are many technical schemes for the catcher used for the protection of the broken belt of the belt conveyor, but a considerable part of them adopts the principle of the swing block type. The wedge blocks in these catchers are fixed on the upper part or outside of the frame. When a broken belt occurs, the wedge block is driven to swing by some kind of power device, reducing the gap between the block and the driving wheel, and grasping the belt. catch. If it is divided according to the different power sources, it can be divided into two types: friction drive type and electro-hydraulic type; the former drive roller is located under the belt, which is eccentric or ratchet backstop type, and the drive wheel rotates forward when the belt is running normally. . When the belt is broken, the friction force generated by the reverse movement of the belt is used to drive the driving roller to drive the transmission mechanism to make the brake block catch; the latter uses the broken belt detection sensor to detect the broken belt signal, and drives the brake block to catch through the electro-hydraulic device. The above-mentioned catcher schemes all have the following one or more disadvantages, which are mainly manifested in: the first is that the catcher and the conveyor share a frame, and its strength is low, and the frame may be deformed when catching; When the catcher captures only the edges on both sides of the tape, the contact area between the catcher block and the tape is small, which will cause great damage to the tape; the third is that there are many transmission parts, and dust and materials can easily block the movement of moving parts. The transmission mechanism in some of the technical solutions is quite complicated, even including many electrical and hydraulic components, which virtually reduces the reliability of the catcher; fourth, when the brake block is installed above the belt, it is easy to cause material blockage and material overflow. Fifth, because they use the movement generated by the reverse operation of the tape to trigger the action of the catcher, so when the upper conveyor stops to cause the tape to reverse in a short distance, it is easy to cause the catcher to malfunction.

Utility model content

The task of the utility model is to solve the technical defects of the broken belt catcher of the belt conveyor in the prior art, and provide a broken belt catcher of the belt conveyor.

Its technical solutions are:

A broken belt catcher for a belt conveyor, comprising a frame, an upper belt catcher and a lower belt catcher, the upper belt catcher includes an upper catcher movable part and a fixed catcher that can swing upwards under the action of gravity On the upper static part of the frame, the upper dynamic part swings to and is close to the upper static part above it, and cooperates with the upper static part to form a belt conveyor capable of catching The upper clamping gap of the upper fault belt; the lower tape capture part includes the lower capture dynamic part that can swing downward under the action of gravity, the lower capture static part fixed at the lower part of the frame, and the lower capture dynamic part Swing towards and close to the lower catching static subsection located below it, and cooperate with the catching static subsection below to form a lower clamping gap capable of catching the lower layer of the belt conveyor.

The upper tape capture part includes the upper support frame, the counterweight arm and the upper idler that can hold the upper tape from bottom to top. The frame is hinged with the frame through the pin shaft, the upper idler is located on the upper part of the upper support frame, the upper shoe block is located at the front end of the upper support frame, the front end of the counterweight arm is fixed at the rear of the upper support frame, and the counterweight arm is equipped with a counterweight The upper beam is located above the upper supporting frame. When the upper belt loses the pressure on the upper roller, under the action of the counterweight arm, the upper supporting frame can carry the upper roller and the upper shoe to swing upward until the upper shoe is in contact with the upper roller. A wedge-shaped upper clamping gap is formed between the upper beams; the lower tape capture part includes the lower support frame and the lower pressure roller that can press the lower tape from top to bottom. The subdivision is the lower beam, the lower pressure roller is located at the lower part of the lower support frame, the lower support frame is hinged with the frame through the pin shaft, the lower shoe block is located at the front end of the lower support frame, and the lower beam is located under the lower support frame. The moment the lower pressure roller is supported, the lower support frame can carry the lower pressure roller and the lower shoe to swing downward until a wedge-shaped lower clamping gap is formed between the lower shoe and the lower beam.

The above-mentioned upper support frame is located between the left and right sides of the frame, and the left and right ends of the upper support frame are respectively hinged to the corresponding parts of the left and right sides of the frame through pin shafts. The counterweight arm includes the left counterweight arm and The right side counterweight arm, the left side counterweight arm is fixedly connected on the side pin shaft from the outside of the left side frame, and the right side counterweight arm is fixedly connected on the side pin shaft from the right side frame outside.

The structure of the above-mentioned left counterweight arm is the same as that of the right counterweight arm, and they are symmetrically arranged.

The above-mentioned lower supporting frame is located between the left and right side frames, and the left and right ends of the lower supporting frame are respectively hinged with the corresponding parts of the left and right side frames through pin shafts.

The length of the above-mentioned upper idler roller, upper shoe block, lower pressure roller and lower shoe block is equivalent to the belt width of the belt conveyor belt in application.

The width between the left side frame and the right side frame is larger than the belt width of the belt conveyor in the application.

The above-mentioned upper rollers are respectively fixed on the corresponding sides of the upper support frame through the end shafts at both ends, and the upper roller can be driven to rotate when the upper tape is running; the lower pressure rollers are respectively fixed on the corresponding sides of the lower support frame through the end shafts at both ends. When the side upper and lower tapes are running, they can drive the lower pressure roller to rotate.

The utility model can have the following beneficial technical effects:

1. The frame in the utility model can be installed independently of the conveyor frame, and there is no damage to the conveyor frame when catching broken belts.

2. When the utility model catches the broken tape, it can catch the upper and lower tapes after the broken tape at the same time, and the arresting reliability is high.

3. When the utility model captures the broken belt, the upper roller can turn the upper broken belt up and remove the material on the belt under the action of the counterweight such as the counterweight arm. This action can not only make the upper shoe block Capturing along the entire bandwidth direction, the capturing is reliable, the damage to the belt body is small, and it is ensured that there is no material on the surface of the capturing belt, which improves the reliability of capturing.

4. When the utility model captures a broken belt, the shoe block can form surface contact with the belt, and the belt can form surface contact with the crossbeam, and the damage to the belt is small.

5. The transmission mechanism of the utility model is simple, there are few moving parts, no hydraulic or electro-hydraulic parts are needed, the reliability is high, and the capture failure caused by dust and sundries is not easy to occur.

6. In the utility model, the counterweight arm and its counterweight block can be placed outside the conveyor frame, so it will not have any impact on the material running, and will not block or overflow.

7. The utility model does not rely on the reverse operation of the belt to trigger the action when the belt is broken, but the sudden drop in the tension of the conveyor belt after the belt is broken (this is the most obvious feature of the belt broken accident), relying on the gravity of the components Trigger, so if there is a brief reversal when the conveyor stops, there will be no malfunction.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described:

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

Fig. 2 is a front structural diagram of the mode in Fig. 1 .

FIG. 3 is a cross-sectional structure diagram along line A-A of FIG. 2 .

Fig. 4 is a side structural view of the mode in Fig. 1 .

Detailed ways

1 to 4, a broken belt catcher for a belt conveyor includes a frame, an upper belt catcher and a lower belt catcher. The upper tape capture part includes an upper support frame 1 , a left counterweight arm 2 , a right counterweight arm 3 , an upper idler roller 4 , an upper shoe block (shoe block) 5 and an upper beam 6 . The frame includes a left frame 7 and a right frame 8, the upper support frame 1 is located between the left frame 7 and the right frame 8, and the left end of the upper support frame 1 is connected to the left side of the frame through a pin 18. The frame 7 is hinged, and the right end of the upper support frame 1 is hinged with the right frame 8 through the pin shaft 9. The protruding section of bearing pin 9 is fixedly connected. The above-mentioned left counterweight arm 2 and the right counterweight arm 3 can adopt the same structure and be symmetrically arranged. The rear end of the left counterweight arm 2 is equipped with a counterweight 10, and the right counterweight arm 3 The rear end is equipped with a counterweight 11 . The upper idler roller 4 is located on the upper part of the upper support frame 1, that is, the upper idler roller 4 is respectively fixed on the corresponding sides of the upper support frame 1 through the end shafts at both ends. During normal operation, because the upper tape 12 is subjected to a large tension, it can Press down the idler roller 4 above, and can drive the idler roller 4 above to rotate with. Upper shoe block 5 is positioned at the front end of support frame 1 above. The upper beam 6 is fixed between the left frame 7 and the right frame 8, and is positioned above the upper support frame 1. If the upper belt of the belt conveyor breaks during operation, the upper belt 12 will immediately lose its effective pressure on the upper idler 4, and at the moment when the upper belt 12 loses the pressure on the upper idler 4, the upper belt will be held by the counterweight arm. Under the action, the upper supporting frame can carry the upper roller and the upper shoe to swing upward until a wedge-shaped upper clamping gap capable of catching the upper fault belt is formed between the upper shoe and the upper beam. The lower adhesive tape catching part includes a lower supporting frame 13 , a lower pressure roller 14 , a lower shoe block 15 and a lower beam 16 . The lower support frame 13 is positioned between the left side frame 7 and the right side frame 8, and the left end of the lower support frame 13 is hinged with the corresponding position of the left side frame by the pin shaft, and the right end of the lower support frame 13 is connected with the right side frame by the pin shaft. The corresponding parts of the frame are hinged. The lower pressure roller 14 is located at the lower part of the lower support frame, that is, the lower pressure roller 14 is respectively fixed on the corresponding sides of the lower support frame 13 through the end shafts at both ends. During normal operation, the lower belt 17 can support the lower idler roller upward due to tension. 14, and can drive the lower pressure roller to rotate with it. The lower shoe block 15 is located at the front end of the lower support frame 13 . The crossbeam 16 below is fixed between the left side frame and the right side frame, and is positioned at the below of the support frame below. If the lower tape of the belt conveyor breaks during operation, the lower tape 17 will immediately lose its effective support to the lower pressure roller 14. In an instant, the lower support frame can carry the lower pressure roller and the lower shoe to swing downward until a wedge-shaped lower clamping gap capable of catching the lower fault zone is formed between the lower shoe and the lower beam. The lengths of the upper idler, upper shoe, lower pressure roller and lower shoe are equivalent to the belt width of the belt conveyor in application. The equivalent means that the former is the same as the latter, the former is slightly larger than the latter or the former slightly smaller than the latter. The width between the left frame and the right frame should be greater than the belt conveyor belt width in the application.

In the above-mentioned embodiment, it is also possible to adopt the counterweight on one side to replace the counterweight on both sides at the same time; When the belt conveyor breaks, the part can swing upwards quickly in an instant. In the above-mentioned embodiment, the shoe block (shoe type block) has been exemplified as the mode of catching the moving part and the crossbeam as the catching static part. Personnel can think of other cooperation techniques, as long as it can be ensured that a matched pair of catching dynamic subsections and catching static subsections can clamp the broken belt.

It should also be noted that under the teaching of this specification, any equivalent replacement or obvious modification of the utility model made by those skilled in the art shall fall within the protection scope of the utility model.

Claims (8)

1. A broken belt catcher for a belt conveyor, comprising a frame, an upper tape catcher and a lower tape catcher, characterized in that: the upper tape catcher includes a catcher that can swing upwards under the action of gravity The upper catching moving part and the upper catching static part fixed on the upper part of the frame, the upper catching moving part swings to and approaches the upper catching static part above it, and cooperates with the upper catching static part Form the upper clamping gap capable of catching the upper fault belt; the lower tape catching part includes the lower catching dynamic part that can swing downward under the action of gravity and the lower catching static part fixed on the lower part of the frame. The catching subsection swings towards and approaches the lower catching static subsection below it, and cooperates with the lower catching static subsection to form a lower clamping gap capable of catching the lower fault zone. 2. The broken belt catcher for belt conveyor according to claim 1, characterized in that: the upper belt catcher includes an upper support frame, a counterweight arm and an upper roller capable of supporting the upper belt upwards, The moving part of the upper catch is the upper shoe, the static part of the upper catch is the upper beam, the upper support frame is hinged with the frame through the pin shaft, the upper idler is located on the upper part of the upper support frame, and the upper shoe is located on the upper support frame The front end, the front end of the counterweight arm is fixed at the rear of the upper support frame, the counterweight arm is equipped with a counterweight, the upper beam is located above the upper support frame, and the counterweight arm Under the action of the upper supporting frame, it can carry the upper roller and the upper shoe to swing upwards until a wedge-shaped upper clamping gap is formed between the upper shoe and the upper beam; the lower tape catch part includes the lower supporting frame and can be pressed from top to bottom The lower pressure roller holding the lower tape, the lower catch dynamic part is the lower shoe block, the lower catch static part is the lower beam, the lower pressure roller is located at the lower part of the lower support frame, and the lower support frame is hinged with the frame through a pin shaft. The lower shoe is located at the front end of the lower support frame, and the lower crossbeam is located under the lower support frame. When the support of the lower pressure roller by the lower tape is lost, the lower support frame can carry the lower pressure roller and the lower shoe to swing downward until the lower shoe A wedge-shaped lower clamping gap is formed between the lower beam and the lower beam. 3. The broken belt catcher for belt conveyor according to claim 2, characterized in that: the upper support frame is located between the left and right side frames, and the left and right ends of the upper support frame pass through pin shafts respectively Hinged with the corresponding parts of the left and right racks, the counterweight arm includes a left counterweight arm and a right counterweight arm, and the left counterweight arm is fixedly connected to the protruding section of the side pin from the outside of the left rack , the right side counterweight arm is fixedly connected on the protruding section of the side pin shaft from the outside of the right side frame. 4. The broken belt catcher for belt conveyor according to claim 3, characterized in that: the left counterweight arm has the same structure as the right counterweight arm, and they are arranged symmetrically. 5. The broken belt catcher for belt conveyor according to claim 3, characterized in that: the lower support frame is located between the left and right side frames, and the left and right ends of the lower support frame respectively pass through The bearing pin is hinged with the corresponding parts of the left and right sides of the frame. 6. The broken belt catcher for belt conveyor according to claim 2, characterized in that: the length of the upper roller, upper shoe, lower pressure roller and lower shoe is the same as that of the belt conveyor in application The belt width is comparable. 7. The broken belt catcher for belt conveyor according to claim 3, characterized in that: the width between the left side frame and the right side frame is larger than the belt width of the belt conveyor in application. 8. The broken belt catcher for belt conveyor according to claim 2, characterized in that: the upper idler rollers are respectively fixed on the corresponding sides of the upper support frame through the end shafts at both ends, and the belt can be The upper idler roller is driven to rotate; the lower pressure roller is respectively fixed on the corresponding sides of the lower support frame through the end shafts at both ends, and the belt can drive the lower pressure roller to rotate along with it when the belt is in normal operation.

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