Mining conveying belt replacing device

Abstract

The utility model relates to the field of replacement and continuation of conveying belts, in particular to a mining conveying belt replacing device. Comprising a pair of fixing frames, a new belt roller is rotatably connected between the tops of the fixing frames, a pair of positioning seats are arranged on one sides of the fixing frames, sliding grooves are oppositely formed in one sides of the opposite faces of the two positioning seats in the longitudinal direction, a limiting shaft is rotatably connected between the positioning seats and located in the sliding grooves in a sliding mode, and a belt collecting mechanism is arranged between the bottoms of the positioning seats. And the belt collecting mechanism drives the old belt to be wound on the limiting shaft. A new belt is arranged on the new belt roller, a to-be-replaced adhesive tape machine conveying belt is broken at a proper position, one of two broken old belt heads is connected with the new belt, the other one is plugged into the belt collecting mechanism, the belt collecting mechanism is started, the old belt heads are pulled out and curled into a roll on the limiting shaft, the position of the belt roll is guaranteed through the limiting shaft, and the belt roll is prevented from sliding out of the belt collecting mechanism. A new belt and an old belt are replaced and installed at the same position, and whether defects exist on the new belt or not can be observed while the belt is wound.

Description

Technical Field

[0001] The utility model relates to the field of conveyor belt replacement, in particular to a conveyor belt replacement device for mining. Background Art

[0002] The conveyor belt is the main operating part of the belt conveyor and is also the part that is most prone to wear and failure. When the conveyor belt is damaged or aged and cannot meet normal production needs, it is necessary to replace the conveyor belt. The length of the belt conveyor is generally set according to the needs of the production process. When replacing a longer conveyor belt, the export and import of the new and old conveyor belts and the recycling of the old conveyor belt are very cumbersome, and the entire replacement process is time-consuming and labor-intensive.

[0003] At present, many production units still use manual belt replacement and belt winding. Some production units use mechanical equipment to assist in replacing conveyor belts and use conveyor belt winding machines to recycle and wind old belts. The mechanical equipment uses a reduction motor to drive an active roller to pull the old belt over and pass it through a driven roller. The driven roller assists in winding the belt in the middle above the two rollers, such as Figure 1 However, the friction generated by a roller drive is small, which is prone to slipping. As the diameter of the belt roll gradually increases, it is easy to slip off the roller. Utility Model Content

[0004] The utility model aims to solve the above problems, thereby providing a mining conveyor belt changing device which can simultaneously meet the needs of replacing new and old belts.

[0005] The utility model solves the above problems and adopts the following technical solutions:

[0006] A belt changing device for a mining conveyor belt comprises a pair of fixed frames, a new belt roller is rotatably connected between the tops of the fixed frames, a pair of positioning seats are arranged on one side of the fixed frames, slide grooves are longitudinally provided on the opposite sides of the two positioning seats, a limiting shaft is slidably and rotatably connected between the positioning seats and in the slide groove, a belt taking-up mechanism is arranged between the bottoms of the positioning seats, and the belt taking-up mechanism drives the old belt to be wound around the limiting shaft.

[0007] Compared with the prior art, the utility model adopting the above technical solution has the following outstanding features:

[0008] A new belt is set on the new belt roller, and the conveyor belt of the belt conveyor to be replaced is disconnected at an appropriate position. After the two old belt heads are disconnected, one is connected to the new belt, and the other is inserted into the belt taking-up mechanism. The belt taking-up mechanism is started, and the old belt head is pulled out and rolled into a roll on the limiting shaft. The position of the belt roll is ensured by the limiting shaft to prevent it from slipping out of the belt taking-up mechanism. The replacement and installation of the new belt and the old belt are placed in one place, so that whether there are defects on the new belt can be observed while the belt is being rolled.

[0009] As a preferred embodiment, a further technical solution of the utility model is:

[0010] Furthermore, a belt correction mechanism for preventing the old belt from deflecting is movably penetrated on one side of the two positioning seats and away from the slide slot.

[0011] Furthermore, the positive belt mechanism includes a screw rod, and a threaded hole is respectively opened on each positioning seat and in the middle part away from the sliding groove. A threaded rod is screwed in each threaded hole. A through hole is opened on the positioning seat and located at the outer periphery of the threaded hole. A support rod is movably passed through the through hole. The threaded rod and the inner ends of the support rod are jointly fixed with a limiting plate.

[0012] Furthermore, a hand wheel is arranged at the outer end of the threaded rod.

[0013] Furthermore, a plurality of groups of roller seats are horizontally arranged on the inner side surface of the limiting plate, and auxiliary rollers are rotatably connected between each group of roller seats.

[0014] Furthermore, the belt taking-up mechanism includes a first roller and a second roller, and a plurality of first adjustment holes of equal height are relatively opened at the bottom of the positioning seat and on both sides of the bottom of the limiting shaft. The first roller and the second roller are respectively located on both sides of the bottom of the limiting shaft and are rotatably connected in the first adjustment holes. The end of the first roller extends out of the positioning seat and is connected to a reduction motor, and the first roller and the second roller are transmission-connected.

[0015] Furthermore, it also includes a third roller. A plurality of second adjustment holes are longitudinally opened at the bottom of the positioning seat and below the slide groove. The third roller is located below the first roller and the second roller and is rotatably connected to the second adjustment hole. There are gaps between the third roller and the first roller and between the third roller and the second roller for the old belt to pass through. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the belt changing structure of existing mechanical equipment;

[0017] Figure 2 This is a schematic diagram of the front cross-sectional structure of the embodiment of the utility model before the belt is changed;

[0018] Figure 3 This is a schematic diagram of the front cross-sectional structure of the embodiment of the utility model after the belt is replaced;

[0019] Figure 4 This is a schematic diagram of the top view of the positioning seat of an embodiment of the utility model;

[0020] Figure 5 This is a schematic diagram of the main structure of the positioning seat of the embodiment of the utility model;

[0021] Marked in the figure are: fixed frame 1, new belt roller 2, positioning seat 3, slide groove 31, limit shaft 32, threaded hole 33, through hole 34, limit plate 4, hand wheel 5, auxiliary roller 7, first roller 8, second roller 9, first adjustment hole 10, third roller 11, second adjustment hole 12, old belt 13, screw 14, reduction motor 15, support rod 16. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0023] A belt changing device for a mining conveyor belt comprises a pair of fixed frames 1, a new belt roller 2 is rotatably connected between the tops of the fixed frames 1, a pair of positioning seats 3 are arranged on one side of the fixed frames 1, the positioning seats 3 are L-shaped, and slide grooves 31 are longitudinally provided on one side of the opposite surfaces of the two positioning seats 3, the upper part of the slide groove 31 is open, and a supporting rib is arranged on one side of the slide groove 31, a limiting shaft 32 is slidably and rotatably connected between the positioning seats 3 and located in the slide groove 31, and a belt taking-up mechanism is arranged between the bottoms of the positioning seats 3, and the belt taking-up mechanism drives the old belt 13 to be wound around the limiting shaft 32.

[0024] Furthermore, a belt-correcting mechanism for preventing the old belt 13 from deflecting is movably penetrated on one side of the two positioning seats 3 and away from the slide slot 31. The belt-correcting mechanism abuts against the side of the belt roll to ensure the flatness of the side.

[0025] Furthermore, the belt-positive mechanism includes a screw rod 14, and a threaded hole 33 is respectively opened on each positioning seat 3 and in the middle of the side away from the slide groove 31, and a threaded rod 14 is screwed in each threaded hole 33. A through hole 34 is opened on the positioning seat 3 and located on the outer periphery of the threaded hole 33, and a support rod movably passes through the through hole 34. The threaded rod 14 and the inner end of the support rod are jointly fixed to the limit plate 4, and the threaded rod 14 is rotated to drive the limit plate 4 to move inward and outward, so that the limit plates 4 on both sides are against the side of the belt roll.

[0026] Furthermore, a hand wheel 5 is provided at the outer end of the threaded rod 14, and the threaded rod 14 can be rotated more conveniently by the hand wheel 5.

[0027] Furthermore, a plurality of groups of roller seats are horizontally arranged on the inner side surface of the limit plate 4, and an auxiliary roller 7 is rotatably connected between each group of roller seats. As the diameter of the belt roll changes, the belt roll rotates directly to drive the auxiliary roller 7 to rotate on the side surface of the belt roll, thereby ensuring the flatness of the side surface and preventing hard contact with the upper and lower sides of the limit plate 4 during rotation.

[0028] Furthermore, the tape taking-up mechanism includes a first roller 8 and a second roller 9. A plurality of first adjustment holes 10 of equal height are relatively opened at the bottom of the positioning seat 3 and on both sides of the bottom of the limiting shaft 32. The first roller 8 and the second roller 9 are respectively located on both sides of the bottom of the limiting shaft 32 and are rotatably connected in the first adjustment holes 10. The end of the first roller 8 extends out of the positioning seat 3 and is connected to a reduction motor. The first roller 8 and the second roller 9 are transmission-connected. The first roller 8 and the second roller 9 pull the old tape 13 to be rolled on the limiting shaft 32. The spacing between the first roller 8 and the second roller 9 is adjusted through the first adjustment hole 10 to adapt to old tapes of different lengths.

[0029] Furthermore, it also includes a third roller 11, and a plurality of groups of second adjustment holes 12 are longitudinally opened at the bottom of the positioning seat 3 and below the slide groove 31. The second adjustment holes 12 are located below the first adjustment hole 10. The third roller 11 is located below the first roller 8 and the second roller 9 and is rotatably connected to the second adjustment hole 12. There is a gap between the third roller 11 and the first roller 8, and between the third roller 11 and the second roller 9 for the old belt 13 to pass through. Since the belt taking-up mechanism needs to drive the old belt 13 and the new belt at the same time, the required power becomes larger, so that the friction of the old belt 13 between the third roller 11 and the first roller 8, and between the third roller 11 and the second roller 9 is increased, and the spacing between the three rollers is adjusted through the second adjustment hole 12, so that the old belt 13 is clamped between the three rollers.

[0030] A new belt is set on the new belt roller, and the conveyor belt of the belt machine to be replaced is disconnected at an appropriate position. After the two old belt heads are disconnected, one is connected to the new belt, and the other is inserted between the three rollers. The reduction motor is started, the old belt is pulled out and rolled into a roll on the limiting shaft, the reduction motor is turned off, and the spacing of the positive belt device is adjusted according to the bandwidth of the old belt. At this time, the preparation work is completed, and the drive motor is started again. The old belt will be pulled out continuously and automatically rolled up. With the assistance of the limiting shaft and the positive belt device, the old belt is rolled up smoothly. At the same time, the pulling out of the old belt drives the pulling in of the new belt until the new belt is completely pulled in, and the new and old belt mouth joints are disconnected. The old belt is recovered into a whole roll, and the belt replacement is completed. The position of the belt roll is guaranteed by the limiting shaft to prevent it from slipping out from the three rollers. The replacement and installation of the new and old belts are placed in one place, and it is possible to observe whether there are defects on the new belt while rolling the belt.

[0031] The above description is only a preferred feasible embodiment of the present utility model, and does not limit the scope of rights of the present utility model. All equivalent changes made using the contents of the present utility model specification and its drawings are included in the scope of rights of the present utility model.

Claims

1. A conveyor belt changing device for a mine, characterized in that: It includes a pair of fixed frames, a new belt roller is rotatably connected between the tops of the fixed frames, a pair of positioning seats are arranged on one side of the fixed frames, sliding grooves are longitudinally provided on the opposite sides of the two positioning seats, a limiting shaft is slidably and rotatably connected between the positioning seats and in the sliding groove, a belt taking-up mechanism is arranged between the bottoms of the positioning seats, and the belt taking-up mechanism drives the old belt to be wound around the limiting shaft.

2. The mining conveyor belt changing device according to claim 1 is characterized in that: A belt correction mechanism for preventing the old belt from deflecting is movably penetrated on one side of the two positioning seats and away from the sliding groove.

3. The mining conveyor belt changing device according to claim 2 is characterized in that: The positive belt mechanism includes a screw rod, and a threaded hole is respectively opened on each positioning seat and in the middle part away from the sliding groove. A threaded rod is screwed in each threaded hole. A through hole is opened on the positioning seat and located on the outer periphery of the threaded hole. A support rod is movably passed through the through hole. The inner ends of the threaded rod and the support rod are jointly fixed with a limiting plate.

4. The mining conveyor belt changing device according to claim 2 is characterized in that: A hand wheel is arranged at the outer end of the threaded rod.

5. The mining conveyor belt changing device according to claim 3 is characterized in that: A plurality of groups of roller seats are horizontally arranged on the inner side surface of the limiting plate, and auxiliary rollers are rotatably connected between each group of roller seats.

6. The mining conveyor belt changing device according to claim 1 is characterized in that: The belt taking-up mechanism includes a first roller and a second roller. Several groups of first adjustment holes of equal height are relatively opened at the bottom of the positioning seat and on both sides of the bottom of the limiting shaft. The first roller and the second roller are respectively located on both sides of the bottom of the limiting shaft and are rotatably connected in the first adjustment holes. The end of the first roller extends out of the positioning seat and is connected to a reduction motor. The first roller and the second roller are transmission-connected.

7. The mining conveyor belt changing device according to claim 5 is characterized in that: It also includes a third roller. A plurality of second adjustment holes are longitudinally provided at the bottom of the positioning seat and below the slide groove. The third roller is located below the first roller and the second roller and is rotatably connected to the second adjustment holes. There are gaps between the third roller and the first roller and between the third roller and the second roller for the old belt to pass through.

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