Roller replacement aid

Abstract

The application provides a roller replacement auxiliary device. The roller replacement auxiliary device comprises a supporting base, a folding support, a main supporting beam and a driving unit. The bottom end of the folding support is rotatably installed on the supporting base. The top end of the folding support is rotatably connected with the main supporting beam. The main supporting beam is used for supporting the belt. The driving unit is movably connected with the folding support. The driving unit is used for driving the folding support to fold or unfold, so as to adjust the lifting height of the main supporting beam. The roller replacement auxiliary device supports the belt through the main supporting beam, which facilitates the replacement of the roller under the belt, ensures the safety during the replacement process, and reduces the labor burden.

Description

Technical Field

[0001] This application belongs to the field of belt conveyor technology, and specifically relates to an auxiliary device for changing idlers. Background Technology

[0002] Belt conveyors are one of the essential pieces of equipment in large open-pit mines, widely used in mining and coal transportation. Due to their advantages such as low transportation costs, high efficiency, safety, and environmental friendliness, belt conveyors are the preferred transportation equipment for open-pit and coal mining enterprises. A belt conveyor mainly consists of a frame, conveyor belt, idlers, rollers, tensioning devices, and transmission devices. Idler rollers are wear parts and require frequent replacement. Common idler roller replacement tools work by pressing the idler roller tightly when the belt is tensioned; if the idler roller rotates inflexibly or malfunctions, it needs to be replaced promptly. Currently, the commonly used idler roller replacement tool involves manually crawling between the upper and lower belts, using special pliers to clamp the belt, removing the old idler roller, and replacing it with a new one. However, mine belt conveyors generally have a certain slope, making it difficult to remove the belt and idler roller manually. Furthermore, replacing the belt requires two people working together, and one worker must enter the bottom of the conveyor to lift the belt, which takes about 20 minutes. When replacing idler rollers, inconsistencies in manual coordination can cause the rollers to be squeezed out or ejected, resulting in injury. Furthermore, the narrow space between the upper and lower conveyor belts makes it dangerous for workers to crawl inside, and the limited distance for manually lifting the belts makes it inconvenient and difficult to maneuver the idler rollers. These inconsistencies in manual coordination can lead to the rollers being squeezed out or ejected, causing injury. Especially in the complex working environment of underground mines, accidents involving personnel injuries frequently occur during replacement processes. Utility Model Content

[0003] The technical problem solved by this application is: how to provide an auxiliary device for changing idlers that facilitates the lifting of belts, reduces manual labor, and improves safety.

[0004] This application provides an idler roller replacement auxiliary device, the idler roller replacement auxiliary device comprising:

[0005] Support base;

[0006] A folding bracket, the bottom end of which is rotatably mounted to the support base;

[0007] The main support beam is rotatably connected to the top of the folding bracket, and the main support beam is used to support the belt;

[0008] A drive unit is movably connected to the folding bracket, and the drive unit is used to drive the folding bracket to fold or unfold in order to adjust the lifting height of the main support beam.

[0009] Optionally, the folding bracket includes an upper folding arm, a middle connector, and a lower folding arm distributed from top to bottom. The two ends of the middle connector are hinged to the upper folding arm and the lower folding arm, and the upper folding arm is hinged to the main support beam, the lower folding arm is hinged to the support base, and the drive unit is movably connected to the middle connector.

[0010] Optionally, the drive unit includes a lead screw and an electric wrench, the lead screw being threadedly connected to the central connector, and the output shaft of the electric wrench being connected to the lead screw.

[0011] Optionally, the number of folding brackets is two, the two folding brackets are arranged at intervals, and the two ends of the main support beam are respectively rotatably connected to the two folding brackets.

[0012] Optionally, each of the folding brackets includes two sets of upper folding arms, the middle connector, and the lower folding arm.

[0013] Optionally, the idler roller replacement auxiliary device further includes a side support plate and an inclined plate. The side support plate is rotatably mounted on the side wall of the main support beam, and the two ends of the inclined plate are rotatably connected to the side support plate and the folding bracket, respectively.

[0014] Optionally, the inclined plate is hinged to the lower folding arm.

[0015] The idler roller replacement auxiliary device provided in this application has the following technical advantages:

[0016] The idler replacement auxiliary device supports the belt through the main support beam, which facilitates the replacement of the idlers under the belt, ensuring safety during the replacement process and reducing the manpower burden. Attached Figure Description

[0017] Figure 1 A side view of a roller changing auxiliary device according to one or more embodiments.

[0018] Figure 2 This is a schematic diagram illustrating the lifting and lowering state changes of a roller changing auxiliary device according to one or more embodiments. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0020] Before describing the various embodiments of this application in detail, the technical concept of this application is first briefly described: Currently, replacing idlers on a belt conveyor is somewhat dangerous and requires a large amount of manpower. Therefore, this application provides an idler replacement auxiliary device, which uses a drive unit to drive a folding bracket to fold or unfold, thereby adjusting the lifting height of the main support beam at the upper end of the folding bracket. The main support beam lifts the belt, facilitating the replacement of the idlers below the belt, ensuring safety during the replacement process, and also reducing the manpower burden. The specific principle of the idler replacement auxiliary device of this application will be described below with reference to more embodiments.

[0021] Specifically, such as Figure 1 As shown, the idler roller replacement auxiliary device in this embodiment includes a support base 10, a folding bracket 20, a main support beam 30, and a drive unit 40. The bottom end of the folding bracket 20 is rotatably mounted on the support base 10, and the main support beam 30 is rotatably connected to the top end of the folding bracket 20. The main support beam 30 is used to support the belt. The drive unit 40 is movably connected to the folding bracket 20, and the drive unit 40 is used to drive the folding bracket 20 to fold or unfold in order to adjust the lifting height of the main support beam 30.

[0022] In one or more embodiments, the folding bracket 20 includes an upper folding arm 21, a middle connector 22, and a lower folding arm 23 distributed from top to bottom. The upper folding arm 21 and the lower folding arm 23 are hinged to each other at both ends of the middle connector 22. The upper folding arm 21 is hinged to the main support beam 30, and the lower folding arm 21 is hinged to the support base 10. The drive unit 40 is movably connected to the middle connector 22. By driving the middle connector 22 to move, the upper folding arm 21 and the lower folding arm 23 are folded or unfolded, thereby raising or lowering the main support beam 30. The lifting process is as follows: Figure 2 As shown.

[0023] For example, there are two folding brackets 20, which are spaced apart, and the two ends of the main support beam 30 are rotatably connected to the two folding brackets 20 respectively. Each folding bracket 20 includes two sets of upper folding arms 21, a middle connecting piece 22, and a lower folding arm 23. This can achieve the stability of the folding bracket 20 during the folding process and ensure the stability of the main support beam 30 during the lifting process.

[0024] In one or more embodiments, the drive unit 40 includes a lead screw 41 and an electric wrench 42. The lead screw 41 is threadedly connected to the central connecting member 22, and the output shaft of the electric wrench 42 is connected to the lead screw 41. The electric wrench 42 drives the lead screw 41, thereby causing the central connecting member 22 to move along the lead screw 41. The upper folding arm 21 and the lower folding arm 23 rotate relative to the central connecting member 22, thereby realizing the folding or unfolding of the folding bracket 20.

[0025] In one or more embodiments, the idler roller replacement auxiliary device further includes a side support plate 50 and an inclined plate 60. The side support plate 50 is rotatably mounted on the side wall of the main support beam 30, and the two ends of the inclined plate 60 are rotatably connected to the side support plate 50 and the folding bracket 20, respectively. During the folding or unfolding of the folding bracket 20, the inclined plate 60 drives the side support plate 50 to rotate, and the side support plate 50 plays an auxiliary role in preventing the belt from disengaging from or deviating from the main support beam 30.

[0026] For example, there are two sets of side support plates 50 and diagonal braces 60, each mounted on one of the two folding brackets 20, which prevents the belt from detaching or shifting from both sides of the main support beam 30. For example, the diagonal brace 60 is hinged to the lower folding arm 23.

[0027] The idler roller replacement auxiliary device provided in this embodiment can quickly and efficiently complete idler roller replacement, shortening equipment downtime and reducing output loss and reduced efficiency caused by downtime. At the same time, this tool can reduce the workload and difficulty of the workers, lower labor maintenance costs, and save subsequent repair expenses. The overall replacement time is reduced by 40%, and maintenance efficiency is greatly improved. Therefore, the operating efficiency and reliability of the conveyor system are comprehensively improved, providing a solid guarantee for the smooth operation of industrial production.

[0028] The specific embodiments of this application have been described in detail above. Although some embodiments have been shown and described, those skilled in the art should understand that modifications and improvements can be made to these embodiments without departing from the principles and spirit of this application as defined by the claims and their equivalents, and such modifications and improvements should also be within the protection scope of this application.

Claims

1. A roller replacement auxiliary device, characterized in that, The idler roller replacement auxiliary device includes: Support base; A folding bracket, the bottom end of which is rotatably mounted to the support base; The main support beam is rotatably connected to the top of the folding bracket, and the main support beam is used to support the belt; A drive unit is movably connected to the folding bracket, and the drive unit is used to drive the folding bracket to fold or unfold in order to adjust the lifting height of the main support beam.

2. The idler roller replacement auxiliary device according to claim 1, characterized in that, The folding bracket includes an upper folding arm, a middle connector, and a lower folding arm distributed from top to bottom. The upper folding arm and the lower folding arm are hinged at both ends of the middle connector. The upper folding arm is hinged to the main support beam, and the lower folding arm is hinged to the support base. The drive unit is movably connected to the middle connector.

3. The idler roller replacement auxiliary device according to claim 2, characterized in that, The drive unit includes a lead screw and an electric wrench. The lead screw is threadedly connected to the central connecting member, and the output shaft of the electric wrench is connected to the lead screw.

4. The idler roller replacement auxiliary device according to claim 2, characterized in that, The number of folding brackets is two, and the two folding brackets are arranged at intervals. The two ends of the main support beam are respectively rotatably connected to the two folding brackets.

5. The idler roller replacement auxiliary device according to claim 4, characterized in that, Each of the folding brackets includes two sets of upper folding arms, a central connector, and a lower folding arm.

6. The idler roller replacement auxiliary device according to any one of claims 1 to 5, characterized in that, The roller replacement auxiliary device also includes a side support plate and an inclined plate. The side support plate is rotatably mounted on the side wall of the main support beam, and the two ends of the inclined plate are rotatably connected to the side support plate and the folding bracket, respectively.

7. The idler roller replacement auxiliary device according to claim 6, characterized in that, The inclined plate is hinged to the lower folding arm.

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