A middle roller replacement device for a belt conveyor

Abstract

The utility model discloses a kind of intermediate carrier roller replacement device for belt conveyor, it is related to carrier roller replacement equipment technical field, it includes base, guide rail is arranged on the base, sliding seat is slidably arranged on the guide rail, sliding seat driving device is arranged between the base and the base, gripping unit is arranged on the sliding seat;The gripping unit includes telescopic power cylinder, the piston rod of the telescopic power cylinder is provided with connecting seat, the pawl matched with carrier roller is hinged on the connecting seat, gripping power cylinder is arranged between the pawl and the connecting seat;Lifting plate is connected between the two telescopic power cylinders;Lifting cylinder is connected to the bottom of the lifting plate. By this, the utility model is set by setting gripping unit and multiple driving devices, the mechanization gripping and replacement of carrier roller are realized, reduce labor intensity, improve operation safety.

Description

Technical Field

[0001] The utility model relates to the technical field of idler replacement equipment, in particular to an intermediate idler replacement device for a belt conveyor. Background Art

[0002] Belt conveyors are widely used in mining machinery. In use, in order to reduce the risk of material scattering, several groups of idler groups arranged in a "pin-shaped" layout are generally arranged on a support, so that the middle part of the entire conveyor belt is recessed inward, which can ensure conveying safety.

[0003] Since gravity acts vertically downward, the idler group at the bottom is subjected to the maximum pressure and therefore wears the fastest. To ensure conveying safety, the idlers need to be inspected and replaced at regular intervals. During replacement, the conveyor belt is generally jacked up to a certain height first, and then the idlers are taken out manually or by mechanical equipment.

[0004] In the prior art, there is a patent document named an auxiliary device for replacing belt conveyor idler with publication number CN221936613U. In this document, by arranging a driving slot and a clamping mechanism, when a knob is rotated, a transmission gear drives the clamping mechanism to realize support for the top, thereby meeting the requirement of replacing idlers. In practice, idlers are heavy and extremely inconvenient to carry, especially in the limited space of a mine. This device is only suitable for jacking support, which easily interferes with idler replacement and has poor practicability. Utility Model Content

[0005] To overcome the above disadvantages, the purpose of the utility model is to provide an intermediate idler replacement device for a belt conveyor, which realizes mechanical grabbing and replacement of idlers by arranging a grabbing unit and a plurality of driving devices, reduces labor intensity and improves operation safety.

[0006] To achieve the above purpose, the utility model provides an intermediate idler replacement device for a belt conveyor, comprising a base, wherein a guide rail is arranged on the base, a sliding seat is slidably arranged on the guide rail, a sliding seat driving device is arranged between the base and the sliding seat, and a grabbing unit is arranged on the sliding seat;

[0007] The grabbing unit comprises telescopic power cylinders, a connecting seat is arranged on a piston rod of the telescopic power cylinders, clamping claws adapted to the idler are hinged on the connecting seat, and grabbing power cylinders are arranged between the clamping claws and the connecting seat; a lifting plate is connected between the two telescopic power cylinders; a lifting cylinder is connected to the bottom of the lifting plate.

[0008] Preferably, lifting guide grooves are further arranged on the sliding seat, and the rear end of each telescopic power cylinder slides in the corresponding lifting guide groove respectively.

[0009] Preferably, the middle part of the slide is a support plate, and the height of the support plate is lower than the height of the guide rail.

[0010] Preferably, the slide drive device is a drive screw, and the slide is provided with a drive slider adapted to the drive screw.

[0011] Preferably, a drive motor or drive handle is rotatably mounted at the end of the drive screw.

[0012] Preferably, the gripper includes an upper gripper and a lower gripper, and the upper gripper and the lower gripper are respectively hinged to the corresponding gripping power cylinder.

[0013] The beneficial technical effects achieved by this utility model after adopting the above technical solution are as follows:

[0014] 1. Because it is equipped with guide rails and slides, and a gripping unit is installed on the slides, the grippers in the gripping unit can move horizontally through a telescopic power cylinder, and can also move vertically under the action of the lifting plate. Therefore, it can grasp and replace the idler roller group, thereby reducing labor intensity and improving the safety factor, and is especially suitable for complex working conditions in underground mines.

[0015] 2. Since the slide is also equipped with lifting guide grooves, the two lifting guide grooves can not only provide guidance, but also prevent tipping when the gripping position of the two claws is not in the center, thereby further improving the safety factor.

[0016] 3. The middle part of the slide is a support plate, and the height of the support plate is lower than the height of the guide rail. This allows the height to be lower before lifting, so the height that the belt lifting device used with it can also lift is lower, making it more suitable for operation in well and mine environments with limited vertical space. Attached Figure Description

[0017] Figure 1 This is a schematic diagram showing the overall usage state of this utility model;

[0018] Figure 2 This is a schematic diagram showing the usage state of the concealed conveyor belt in this utility model;

[0019] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0020] In the diagram,

[0021] 1. Base; 11. Guide rail;

[0022] 2. Slide; 21. Drive screw; 22. Lifting plate; 23. Lifting cylinder; 24. Lifting guide groove; 25. Support plate;

[0023] 3. Gripping unit; 31. Telescopic power cylinder; 32. Connecting seat; 33. Claw; 34. Gripping power cylinder;

[0024] 4. Conveyor belt lifting device;

[0025] 5. Conveyor belt. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0027] See Figures 1-3 This utility model provides an intermediate idler roller replacement device for a belt conveyor, including a base 1, a guide rail 11 on the base 1, a slide block 2 slidably mounted on the guide rail 11, a drive device for the slide block 2 between the base 1 and the slide block 2, and a gripping unit 3 on the slide block 2; the gripping unit 3 includes a telescopic power cylinder 31, a connecting seat 32 on the piston rod of the telescopic power cylinder 31, a claw 33 adapted to the idler roller hinged to the connecting seat 32, and a gripping power cylinder 34 between the claw 33 and the connecting seat 32; a lifting plate 22 is connected between the two telescopic power cylinders 31; and a lifting cylinder 23 is connected to the bottom of the lifting plate 22. In use, this utility model typically involves first using a belt lifting device 4 to lift the conveyor belt 5 to a certain height, and then using this utility model to remove the idler roller that needs replacement. Generally, the bottom idler rollers suffer the most wear and therefore require more frequent replacement. Based on its spatial position, the lifting cylinder 23 is mounted on the support plate 25. Generally, the lifting cylinder 23 is first lowered to its lowest position, ensuring the entire gripping unit 3 is at its lowest point, facilitating the gripping of the bottom idler rollers. The slide block 2 is driven by the sliding block 2 drive device to a position close to the center of the idler roller. After the telescopic power cylinder 31 extends forward a certain distance, under the drive of the gripping power cylinder 34, the chuck 33 rotates and grips the idler roller. When the lifting cylinder 23 drives the lifting plate 22 upwards, it simultaneously drives the gripping unit 3 upwards until the idler roller assembly leaves the fixed support. The telescopic power cylinder 31 then retracts. After retracting to its initial state, the slide block 2 slides to one side along the guide rail 11, completing the disassembly of the old idler roller. After gripping the new idler roller, it is transported to a designated location for replacement.

[0028] The slide block 2 of this invention is also provided with a lifting guide groove 24, and the rear end of each telescopic power cylinder 31 slides in the corresponding lifting guide groove 24. The lifting guide groove 24 has two functions: one is to provide guidance for the lifting cylinder 23, and the other is to grip the heavy-duty idler roller. When the gripping position of the two claws 33 is not centered, the two lifting guide grooves 24 can provide a reverse support force to prevent the lifting plate 22 from tilting too much and damaging the lifting cylinder 23, thus providing a safety function. Generally, a roller assembly (not shown) can also be provided at the rear end of the lifting cylinder 23, which can reduce friction when sliding in the lifting guide groove 24.

[0029] The middle part of the slide block 2 of this utility model is a support plate 25, and the height of the support plate 25 is lower than the height of the guide rail 11.

[0030] The driving device for the slide block 2 of this utility model is a drive screw 21, and the slide block 2 is provided with a drive slider adapted to the drive screw 21. The drive screw 21 and the drive slider are mature existing technologies, and can generally be selected according to the model. In order to adapt to the narrow space of the mine, threaded holes adapted to the drive screw 21 can generally be provided on both sides of the slide block 2, so that the slide block 2 can be moved from both sides of the base 1.

[0031] The end of the drive screw 21 of this invention is rotatably mounted with a drive motor or a drive handle. The drive motor can be replaced by an electric wrench, or it can be manually driven using the drive handle.

[0032] The gripper 33 of this invention includes an upper gripper and a lower gripper, which are respectively hinged to corresponding gripping power cylinders 34. The idler roller is cylindrical, and the upper and lower grippers 33 work together to achieve a better gripping effect.

[0033] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A device for changing intermediate idlers for a belt conveyor, characterized in that, Includes a base, a guide rail is provided on the base, a slide is slidably provided on the guide rail, a slide driving device is provided between the bases, and a gripping unit is provided on the slide; The gripping unit includes a telescopic power cylinder, the piston rod of the telescopic power cylinder is provided with a connecting seat, the connecting seat is hinged with a claw adapted to the idler roller, and a gripping power cylinder is provided between the claw and the connecting seat; a lifting plate is connected between the two telescopic power cylinders; and a lifting cylinder is connected to the bottom of the lifting plate.

2. The intermediate roller replacement device for a belt conveyor according to claim 1, characterized by The slide block is also provided with a lifting guide groove, and the rear end of each telescopic power cylinder slides in the corresponding lifting guide groove.

3. The intermediate roller replacement device for a belt conveyor according to claim 1, characterized by The middle part of the slide is a support plate, and the height of the support plate is lower than the height of the guide rail.

4. The intermediate roller replacement device for a belt conveyor according to claim 1, characterized by The slide block driving device is a drive screw, and the slide block is provided with a drive slider adapted to the drive screw.

5. The intermediate roller replacement device for a belt conveyor according to claim 4, characterized by The end of the drive screw is rotatably mounted with a drive motor or drive handle.

6. The intermediate roller replacement device for a belt conveyor according to claim 1, characterized by The gripper includes an upper gripper and a lower gripper, and the upper gripper and the lower gripper are respectively hinged to the corresponding gripping power cylinder.

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