Belt conveyor auxiliary maintenance device

Abstract

A belt conveyor auxiliary maintenance device, the belt conveyor auxiliary maintenance device includes two bases, a plurality of connecting pieces, a top cover, two drive motors, two screw rods and slide rails, the top of two bases is inserted with the same number of connecting pieces, the side surface of the connecting piece on the same side is arranged on the same horizontal plane with the side surface of the base, the side surface of the connecting piece is provided with a slide rail, the slide rail extends to the side surface of the base and is connected with the base, the top of the uppermost connecting piece is connected with the bottom of the top cover, and the top cover is provided with a drive motor on both sides of the top, the output shaft of each drive motor is connected with the top of the two screw rods through a shaft coupling, the outer side of the two screw rods is threadedly connected with a screw rod block, the side surface of the screw rod block is slidingly connected with the slide rail, the belt conveyor roller is clamped between the two screw rod blocks, and the belt conveyor roller moves up and down along the screw rod. The utility model discloses convenient maintenance, and the maintenance efficiency is higher.

Description

Technical Field

[0001] This utility model relates to an improvement of an auxiliary maintenance device for belt conveyors, belonging to the field of transportation equipment, and particularly to an auxiliary maintenance device for belt conveyors. Background Technology

[0002] Hoisting equipment is a key transportation device in coal mine production, primarily responsible for transporting personnel, materials, equipment, and coal. Its stability and reliability are crucial for ensuring efficient mine production, reducing the accident rate, and alleviating the workload of workers. A malfunction in the hoisting system not only disrupts normal mine production but can also pose a serious threat to the lives of workers.

[0003] In the structural components of conveyor belt systems, idler rollers are widely used and are crucial for supporting belt conveyors. Because coal mine belt conveyor lines are typically long and involve numerous conveyor belts, the total number of idler rollers used is enormous. During transport, the contact between the idler rollers and the belt is also very high, leading to a relatively frequent frequency of belt conveyor damage. Therefore, effectively improving the maintenance efficiency of idler rollers is a key aspect of ensuring the continuous and stable operation of belt conveyor lines and reducing production downtime.

[0004] Chinese patent application CN202320200113.0, filed on February 10, 2023, discloses an auxiliary device for belt conveyor maintenance, including a support base, a base mounting sleeve fitted on the top of the support base, and a mounting support rod at the top of the base mounting sleeve. A telescopic inner plate is fitted inside one side of the mounting support rod, and a first connecting rod is rotatably mounted inside the telescopic inner plate. An end mounting plate is fixedly connected to the other side of the first connecting rod, and an end inner plate is fitted to the bottom of the end mounting plate. A first mounting rod is fixedly mounted on one side of the end inner plate, and a second mounting rod is fitted on the other side. One side of the second mounting rod is fixedly connected to the end inner plate. A second connecting rod and a rotating connecting rod are welded to one side of the end mounting plate. A hand-cranked connecting end plate is installed on the other side of the rotating connecting rod. A support locking hole is opened inside the mounting support rod. The above solution solves the problem of limited space and inconvenience of operation when prying or lifting with a traditional maintenance pry bar. However, the above solution still relies on manual operation for maintenance, resulting in low maintenance efficiency.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this patent application and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to overcome the problems of low maintenance efficiency and inconvenient transportation caused by manual operation in the existing technology, and to provide a belt conveyor auxiliary maintenance device that is convenient to maintain and has high maintenance efficiency.

[0007] To achieve the above objectives, the technical solution of this utility model is: an auxiliary maintenance device for belt conveyors, which includes two bases, multiple connectors, a top cover, two drive motors, two screws, and a slide rail;

[0008] Both bases have multiple connectors of the same number inserted into their tops. The side of the connector is on the same horizontal plane as the side of the base. The side of the connector is provided with a slide rail, which extends to the side of the base and connects with the base.

[0009] The tops of the two uppermost connecting parts are connected to the bottom left and right ends of the top cover, and drive motors are installed on the top two sides of the top cover respectively;

[0010] The output shaft of each drive motor is connected to the top of two screws via a coupling. Screw blocks are threaded around the outer sides of both screws. The sides of the screw blocks slide against the slide rails. A belt conveyor roller is clamped between the two screw blocks and moves up and down along the screws.

[0011] The connector includes a support column and a first horizontal plate;

[0012] The support column has a first horizontal plate installed at both the top and bottom ends on the side away from the slide rail.

[0013] The two adjacent first horizontal plates are connected by bolts, and the side of the support column away from the first horizontal plate is connected to the side of the slide rail.

[0014] A connecting column is installed at the top of the support column, and a slot is opened at the bottom of the support column, with the upper connecting column engaging with the lower slot.

[0015] The slide rail includes a guide rail and a vertical plate. One side of the vertical plate is connected to the side of the support column, and the other side of the vertical plate is connected to the side of the guide rail. The guide rail and the screw block are in sliding engagement.

[0016] The guide rail is at the same height as the vertical plate;

[0017] The width of the guide rail is smaller than the width of the vertical plate;

[0018] The guide rail is composed of multiple sets of rails of the same height, and the vertical plate is composed of multiple sets of small vertical plates.

[0019] The base includes a stable base plate, a stable column, a stiffening plate, and a second horizontal plate;

[0020] The top center of the stabilizing base plate is connected to the bottom of the stabilizing column, and the top of the stabilizing column is provided with a mounting column, the top of the mounting column being inserted and connected to the bottom of the lowest support column.

[0021] Multiple stiffeners are provided between the side of the stabilizing column and the top of the stabilizing base plate. A second horizontal plate is installed on the side of the stabilizing column, and the top of the second horizontal plate is connected to the bottom of the first horizontal plate below.

[0022] The top of the screw block is provided with a threaded hole, and the screw is threadedly engaged with the threaded hole;

[0023] The screw block has a sliding groove on the side away from the conveyor belt drum, and the sliding groove slides in conjunction with the guide rail.

[0024] A locking groove is provided on the rear end of the screw block near the belt conveyor roller, and the belt conveyor roller is engaged with the locking groove.

[0025] The locking groove includes a transverse groove and a circular groove that are connected. The belt conveyor roller moves along the transverse groove to the circular groove and engages.

[0026] Both the top and bottom of the transverse groove are provided with elastic bodies, which are arranged in a trapezoidal shape.

[0027] The top of the top cover has a mounting groove, and two drive motors are installed on both sides of the top of the top cover located in the mounting groove.

[0028] The coupling is installed in the mounting slot.

[0029] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0030] 1. In this utility model, an auxiliary maintenance device for a belt conveyor includes multiple connectors of the same number inserted into the top of two bases. The sides of the connectors on the same side are flush with the sides of the bases. A slide rail is provided on the side of each connector, extending to and connecting with the base. The tops of the two uppermost connectors are connected to the left and right ends of the bottom of a top cover. Drive motors are installed on both sides of the top of the top cover. The output shaft of each drive motor is connected to the top of two screws via a coupling. Screw blocks are threaded around the outer sides of both screws, and the sides of the screw blocks slide against the slide rails. A belt conveyor roller is clamped between the two screw blocks, and the belt conveyor roller moves up and down along the screws. In use, the base is first placed on a flat surface, and then... (The text abruptly ends here, likely due to an incomplete sentence or missing information.) To achieve the desired height, multiple connectors are sequentially spliced ​​together, ensuring that the side of each connector is level with the side of the base. After splicing, the side rails of the connectors connect with the side of the base to form a complete guide structure. The top cover is installed on top of the uppermost connector, and the drive motors are installed on both sides of the top of the top cover. The output shaft of the drive motor is connected to the top of the screw via a coupling, ensuring the screw is vertically positioned. The movable conveyor roller engages with the screw block, and the drive motor is then started, causing the screw to rotate. The screw block slides along the rail, smoothly rising and falling, thus synchronously raising and lowering the clamped conveyor roller. As needed for maintenance, the start and stop of the drive motor are controlled. Once the roller is adjusted to the appropriate height, the motor is stopped, completing the position adjustment. The advantages of this design are as follows:

[0031] First, the base is assembled with multiple connecting parts. Then, the conveyor belt roller is embedded between the screw blocks. During maintenance, the idler roller can be adjusted to a height that is easy to disassemble by starting and stopping the motor. There is no need to manually lift the idler roller or use equipment to slowly lift it. This not only reduces labor intensity but also shortens the time for adjusting the idler roller, greatly reducing the time spent on core operations during maintenance.

[0032] Therefore, this utility model is easy to maintain and has high maintenance efficiency.

[0033] 2. In this utility model, the number of connecting parts in an auxiliary maintenance device for belt conveyors can be independently adjusted according to maintenance needs, forming support frames of different heights. This allows the device to quickly adjust and fix the height of different belt conveyor idlers, avoiding the cumbersome process of setting up temporary supports and repeatedly measuring heights required in traditional maintenance. This directly reduces preparation time, improves maintenance efficiency, and makes equipment transportation more convenient. Therefore, this utility model is easy to assemble, and the number of components can be selected according to actual conditions.

[0034] 3. In this utility model's auxiliary maintenance device for belt conveyors, the transverse and circular grooves of the screw block, combined with the guiding and anti-slip function of the trapezoidal elastomer, allow the idler rollers to be precisely engaged without manual intervention or auxiliary clamps, improving positioning efficiency and avoiding secondary adjustments due to alignment deviations. After the idler roller is engaged in the circular groove, the trapezoidal elastomer recovers its deformation, tightly adhering to the roller surface and groove wall, forming a mechanical self-locking mechanism. Even with slight vibrations during lifting, the idler roller will not shift axially or fall off. Therefore, this utility model offers precise fixing and convenient installation.

[0035] 4. In this utility model, the auxiliary maintenance device for belt conveyors allows for the disassembly and independent transport of components such as the base, connectors, slide rails, and top cover. Each component is lightweight, eliminating the need for large hoisting equipment. This makes it suitable for transporting and assembling in space-constrained environments such as underground coal mines and narrow workshops. Furthermore, after maintenance, each component can be quickly disassembled and stored, facilitating vehicle transport or warehouse storage and reducing storage pressure when the equipment is idle. Therefore, this utility model is easy to adjust and maintain. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of this utility model.

[0037] Figure 2 This is a front view of the present invention.

[0038] Figure 3 This is a schematic diagram of the slide rail structure in this utility model.

[0039] Figure 4 This is a schematic diagram of the connection between the slide rail and the screw block in this utility model.

[0040] Figure 5 This is a bottom view of the present invention.

[0041] Figure 6 This is a schematic diagram of the locking groove in this utility model.

[0042] Figure 7 This is a top view of the screw block in this utility model.

[0043] Figure 8 This is a connection diagram of the connector in this utility model.

[0044] Figure 9 This is a schematic diagram of the connection between the connecting column and the slot in this utility model.

[0045] Figure 10 This is a structural schematic diagram of the base in this utility model.

[0046] In the diagram: Base 1, Stabilizing base plate 11, Stabilizing column 12, Rib plate 13, Second horizontal plate 14, Mounting column 15, Connector 2, Support column 21, First horizontal plate 22, Connecting column 23, Slot 24, Top cover 3, Mounting slot 31, Drive motor 4, Coupling 41, Screw 5, Screw block 6, Locking slot 61, Horizontal slot 611, Circular slot 612, Elastomer 62, Slide groove 63, Threaded hole 64, Belt conveyor roller 7, Slide rail 8, Guide rail 81, Vertical plate 82. Detailed Implementation

[0047] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] See Figures 1 to 10 An auxiliary maintenance device for a belt conveyor, comprising two bases 1, multiple connectors 2, a top cover 3, two drive motors 4, two screws 5, and a slide rail 8;

[0049] Both bases 1 have multiple connectors 2 inserted into their tops. The side of the connector 2 on the same side is set at the same horizontal plane as the side of the base 1. The side of the connector 2 is provided with a slide rail 8, which extends to the side of the base 1 and connects with the base 1.

[0050] The tops of the two uppermost connecting pieces 2 are connected to the bottom left and right ends of the top cover 3, and drive motors 4 are respectively installed on the top two sides of the top cover 3;

[0051] The output shaft of each drive motor 4 is connected to the top of two screws 5 via a coupling 41. Screw blocks 6 are threaded around the outer sides of both screws 5. The sides of the screw blocks 6 are slidably engaged with the slide rails 8. A belt conveyor roller 7 is clamped between the two screw blocks 6. The belt conveyor roller 7 moves up and down along the screws 5.

[0052] The connector 2 includes a support column 21 and a first horizontal plate 22;

[0053] The support column 21 has a first horizontal plate 22 installed at its top and bottom ends on the side away from the slide rail 8.

[0054] The two adjacent first horizontal plates 22 are connected by bolts, and the side of the support column 21 away from the first horizontal plate 22 is connected to the side of the slide rail 8.

[0055] A connecting column 23 is installed on the top of the support column 21, and a slot 24 is provided at the bottom of the support column 21. The upper connecting column 23 is engaged with the lower slot 24.

[0056] The slide rail 8 includes a guide rail 81 and a vertical plate 82. The side of the vertical plate 82 is connected to the side of the support column 21, and the other side of the vertical plate 82 is connected to the side of the guide rail 81. The guide rail 81 is slidably engaged with the screw block 6.

[0057] The guide rail 81 is at the same height as the vertical plate 82;

[0058] The width of the guide rail 81 is smaller than the width of the vertical plate 82;

[0059] The guide rail 81 is composed of multiple sets of rails of the same height, and the vertical plate 82 is composed of multiple sets of small vertical plates.

[0060] The base 1 includes a stable base plate 11, a stable column 12, a stiffening plate 13, and a second horizontal plate 14;

[0061] The top center of the stabilizing base plate 11 is connected to the bottom of the stabilizing column 12. The top of the stabilizing column 12 is provided with a mounting column 15, and the top of the mounting column 15 is inserted and connected to the bottom of the lowest support column 21.

[0062] Multiple stiffeners 13 are provided between the side of the stabilizing column 12 and the top of the stabilizing base plate 11. A second horizontal plate 14 is installed on the side of the stabilizing column 12, and the top of the second horizontal plate 14 is connected to the bottom of the first horizontal plate 22 below.

[0063] The top of the screw block 6 is provided with a threaded hole 64, and the screw 5 is threadedly engaged with the threaded hole 64.

[0064] The screw block 6 has a sliding groove 63 on the side away from the belt conveyor roller 7, and the sliding groove 63 slides in cooperation with the guide rail 81.

[0065] The screw block 6 has a locking groove 61 on the rear end near the belt conveyor roller 7, and the belt conveyor roller 7 is engaged with the locking groove 61.

[0066] The locking groove 61 includes a transverse groove 611 and a circular groove 612 that are connected. The belt conveyor roller 7 moves along the transverse groove 611 to the circular groove 612 and engages.

[0067] Both the top and bottom of the transverse groove 611 are provided with an elastic body 62, which is trapezoidal in shape.

[0068] The top of the top cover 3 is provided with a mounting groove 31, and two drive motors 4 are installed on both sides of the top of the top cover 3 located in the mounting groove 31.

[0069] The coupling 41 is disposed in the mounting slot 31.

[0070] The operating principle of this design is as follows:

[0071] First, place the two bases 1 on a flat surface in the belt conveyor maintenance area. Further reinforce the base 1 structure with the stiffening ribs 13 between the side of the stabilizing column 12 and the top of the stabilizing base plate 11 to prevent tilting during subsequent assembly. Then, align the connecting column 23 of the upper connector 2 with the slot 24 of the lower connector 2 and insert it vertically to form a preliminary positioning. Next, fasten the two adjacent first horizontal plates 22 with bolts to form a continuous support frame from multiple sets of connectors 2. Insert the bottom of the support column 21 of the lowest connector 2 into the mounting column 15 at the top of the stabilizing column 12 of the base 1 to complete the rigid connection between the base 1 and the connector 2. Then, attach and fix the side of each individual rail section to one side of the corresponding small vertical plate. Finally, attach the bottom left and right ends of the top cover 3 respectively. Connect the top of the support column 21 of the two uppermost connecting parts 2 to ensure that the top cover 3 is placed horizontally. On both sides of the mounting groove 31 at the top of the top cover 3, install two drive motors 4 respectively. Connect the output shaft of each drive motor 4 to the top of the two screws 5 through the coupling 41. At the same time, make the guide rail 81 fully embedded in the slide groove 63 to ensure that the screw block 6 can move smoothly along the screw 5 and the slide rail 8. Then, the operator aligns the two ends of the belt conveyor roller 7 with the opening end of the locking groove 61 of the screw block 6 on both sides, and slowly pushes it in along the transverse groove 611. Then start the drive motor 4 on the top cover 3 to drive the belt conveyor roller 7 to rise and fall synchronously. Control the start and stop of the drive motor 4 as needed for maintenance. After adjusting the roller 7 to a suitable height, stop the motor operation to complete the position adjustment.

[0072] Example 1:

[0073] A belt conveyor auxiliary maintenance device includes two bases 1, multiple connectors 2, a top cover 3, two drive motors 4, two screws 5, and a slide rail 8. Multiple connectors 2 are inserted into the top of each of the two bases 1. The sides of the connectors 2 on the same side are flush with the sides of the bases 1. Slide rails 8 are provided on the sides of the connectors 2, extending to and connecting to the sides of the bases 1. The tops of the two uppermost connectors 2 are connected to the bottom left and right ends of the top cover 3. Drive motors 4 are installed on both sides of the top of the top cover 3. The output shaft of each drive motor 4 is connected to the top of the two screws 5 via a coupling 41. Screw blocks 6 are threaded around the outer sides of each screw 5. The sides of the screw blocks 6 slide against the slide rails 8. A belt conveyor roller 7 is clamped between the two screw blocks 6, and the belt conveyor roller 7 moves up and down along the screws 5.

[0074] In application: First, place the base 1 on a flat surface. According to the required height for maintenance, assemble multiple connectors 2 in sequence, ensuring that the side of the connector 2 on the same side is level with the side of the base 1. After the connector 2 is assembled, the slide rail 8 on its side connects with the side of the base 1 to form a complete guide structure. Install the top cover 3 on top of the uppermost connector 2. Install the drive motor 4 on both sides of the top of the top cover 3. Connect the output shaft of the drive motor 4 to the top of the screw 5 through the coupling 41, ensuring that the screw 5 is set vertically. Move the conveyor belt roller 7 and engage it with the screw block 6. Then start the drive motor 4 to drive the screw 5 to rotate. The screw block 6 slides and engages with the slide rail 8, smoothly rising and falling along the slide rail 8, thereby driving the clamped conveyor belt roller 7 to rise and fall synchronously. Control the start and stop of the drive motor 4 according to the maintenance needs. After adjusting the roller 7 to a suitable height, stop the motor to complete the position adjustment.

[0075] Example 2:

[0076] Example 2 is basically the same as Example 1, except that:

[0077] The connector 2 includes a support column 21 and a first horizontal plate 22; the support column 21 is equipped with the first horizontal plate 22 at its top and bottom ends on the side away from the slide rail 8; two adjacent first horizontal plates 22 are connected by bolts, and the side of the support column 21 away from the first horizontal plate 22 is connected to the side of the slide rail 8; a connecting column 23 is installed at the top of the support column 21, and a slot 24 is opened at the bottom of the support column 21, with the upper connecting column 23 engaging with the lower slot 24.

[0078] In application: Based on the maintenance height requirements of the belt conveyor roller 7, determine the required number of sets of connectors 2. Align the top of the connecting post 23 of the support column 21 of the lower connector 2 with the slot 24 at the bottom of the support column 21 of the upper connector 2, and insert it vertically to prevent lateral displacement when splicing multiple sets of connectors 2. After the connecting posts 23 of the upper and lower sets of connectors 2 are in place with the slots 24, the first horizontal plate 22 at the top of the support column of the lower connector 2 and the first horizontal plate 22 at the bottom of the support column of the upper connector 2 will be in a state of vertical fit. At this time, use bolts to pass through the corresponding mounting holes of the two sets of first horizontal plates 22 and tighten the bolts to achieve rigid fixation. By connecting multiple sets of connectors 2 into a whole through bolt connection, the vertical support strength is strengthened and the loosening at the splice due to force is avoided.

[0079] Example 3:

[0080] Example 3 is basically the same as Example 1, except that:

[0081] The slide rail 8 includes a guide rail 81 and a vertical plate 82. One side of the vertical plate 82 is connected to the side of the support column 21, and the other side of the vertical plate 82 is connected to the side of the guide rail 81. The guide rail 81 is slidably engaged with the screw block 6. The guide rail 81 and the vertical plate 82 have the same height. The width of the guide rail 81 is smaller than the width of the vertical plate 82. The guide rail 81 is composed of multiple sets of rails of the same height, and the vertical plate 82 is composed of multiple sets of small vertical plates.

[0082] In application: During assembly, the side of the single-section rail is tightly fitted and fixed to one side of the corresponding small vertical plate, ensuring that the rail is perpendicular to the small vertical plate without any offset. This allows the vertical plate 82 to provide lateral shielding and support for the guide rail 81, preventing deformation caused by uneven force on the guide rail when the screw block 6 slides. Since the width of the guide rail 81 is smaller than the width of the vertical plate 82, the vertical plate 82 will form lateral limit from both sides of the guide rail 81, preventing lateral offset when the screw block 6 slides. This ensures that the slide groove 63 and the guide rail 81 always maintain a precise fit. When the drive motor 4 drives the screw 5 to rotate, the screw block 6 cooperates with the screw 5 through the threaded hole 64 to achieve lifting and lowering movement. At this time, the guide rail 81 provides vertical sliding guidance for the screw block 6. At the same time, the vertical plate 82, through its fixed structure with the support column 21, provides sufficient support rigidity for the guide rail 81, preventing the guide rail 81 from bending due to the lateral force of the screw block 6. Ultimately, this ensures that the belt conveyor roller 7 rises and falls smoothly vertically, meeting the position adjustment requirements during maintenance.

[0083] Example 4:

[0084] Example 4 is basically the same as Example 1, except that:

[0085] The top of the screw block 6 is provided with a threaded hole 64, and the screw 5 is threaded into the threaded hole 64; the side of the screw block 6 away from the belt conveyor roller 7 is provided with a sliding groove 63, and the sliding groove 63 is slidably engaged with the guide rail 81; the rear end of the screw block 6 is provided with a locking groove 61 near the belt conveyor roller 7, and the belt conveyor roller 7 is engaged with the locking groove 61; the locking groove 61 includes a transverse groove 611 and a circular groove 612 that are connected, and the belt conveyor roller 7 moves along the transverse groove 611 to the circular groove 612 to engage; the top and bottom of the transverse groove 611 are provided with an elastic body 62, and the elastic body 62 is arranged in a trapezoidal shape.

[0086] In application: During maintenance, the operator aligns the two ends of the conveyor belt roller 7 with the opening ends of the transverse groove 611 of the two screw blocks 6, and slowly pushes the roller along the extension direction of the transverse groove 611. At this time, the trapezoidal elastic bodies 62 at the top and bottom of the transverse groove 611 will undergo elastic deformation due to the compression of the roller. The inclined side of the elastic body 62 guides the roller smoothly into the groove. At the same time, the rebound force of the elastic body 62 will initially adhere to the roller surface to prevent the roller from shaking during the introduction process. When the roller moves to the end along the transverse groove 611, it will enter the circular groove 612 connected to the transverse groove 611. The inner diameter of the circular groove 612 matches the outer diameter of the roller, which can form a circumferential limit for the roller. At the same time, the trapezoidal elastic body 62 restores its deformation, and its two ends will tightly adhere to the roller surface and the inner wall of the circular groove 612, further enhancing the clamping stability. At this time, the roller is completely fixed between the two screw blocks 6 and will not axially shift or fall off due to subsequent lifting and lowering movements, thus completing the roller clamping and fixing process.

[0087] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.

Claims

1. A belt conveyor auxiliary maintenance device, characterized by: The belt conveyor auxiliary maintenance device includes two bases (1), multiple connectors (2), a top cover (3), two drive motors (4), two screws (5) and a slide rail (8). The top of each of the two bases (1) is fitted with a number of connectors (2). The side of the connector (2) on the same side is set at the same level as the side of the base (1). The side of the connector (2) is provided with a slide rail (8), which extends to the side of the base (1) and connects with the base (1). The top of the two uppermost connecting pieces (2) are connected to the bottom left and right ends of the top cover (3), and drive motors (4) are installed on the top two sides of the top cover (3). The output shaft of each drive motor (4) is connected to the top of two screws (5) via a coupling (41). Screw blocks (6) are threaded around the outer sides of the two screws (5). The sides of the screw blocks (6) are slidably engaged with the slide rail (8). A belt conveyor roller (7) is clamped between the two screw blocks (6). The belt conveyor roller (7) moves up and down along the screws (5).

2. The belt conveyor auxiliary maintenance device according to claim 1, characterized in that: The connector (2) includes a support column (21) and a first horizontal plate (22); The support column (21) has a first horizontal plate (22) installed at the top and bottom ends of the side away from the slide rail (8); The two adjacent first horizontal plates (22) are connected by bolts, and the side of the support column (21) away from the first horizontal plate (22) is connected to the side of the slide rail (8).

3. The auxiliary belt conveyor maintenance device according to claim 2, characterized in that: The top of the support column (21) is equipped with a connecting column (23), and the bottom of the support column (21) is provided with a slot (24). The upper connecting column (23) is engaged with the lower slot (24).

4. The belt conveyor auxiliary maintenance device according to claim 2, characterized in that: The slide rail (8) includes a guide rail (81) and a vertical plate (82). The side of the vertical plate (82) is connected to the side of the support column (21), and the other side of the vertical plate (82) is connected to the side of the guide rail (81). The guide rail (81) and the screw block (6) are in sliding cooperation.

5. The auxiliary belt conveyor maintenance device according to claim 4, characterized in that: The guide rail (81) is at the same height as the vertical plate (82); The width of the guide rail (81) is smaller than the width of the vertical plate (82); The guide rail (81) is composed of multiple sets of rails of the same height, and the vertical plate (82) is composed of multiple sets of small vertical plates.

6. The belt conveyor auxiliary maintenance device according to claim 1, characterized in that: The base (1) includes a stable base plate (11), a stable column (12), a stiffening plate (13) and a second horizontal plate (14). The top center of the stabilizing base plate (11) is connected to the bottom of the stabilizing column (12), and the top of the stabilizing column (12) is provided with a mounting column (15), and the top of the mounting column (15) is inserted and connected to the bottom of the lowest support column (21). Multiple stiffeners (13) are provided between the side of the stabilizing column (12) and the top of the stabilizing base plate (11). A second horizontal plate (14) is installed on the side of the stabilizing column (12), and the top of the second horizontal plate (14) is connected to the bottom of the first horizontal plate (22) below.

7. The auxiliary belt conveyor maintenance device according to claim 4, characterized in that: The top of the screw block (6) is provided with a threaded hole (64), and the screw (5) is threadedly engaged with the threaded hole (64); The screw block (6) has a groove (63) on the side away from the belt conveyor roller (7), and the groove (63) slides in cooperation with the guide rail (81).

8. The auxiliary belt conveyor maintenance device according to claim 7, characterized in that: The screw block (6) has a locking groove (61) on the side of its rear end near the belt conveyor roller (7), and the belt conveyor roller (7) is engaged with the locking groove (61).

9. The belt conveyor auxiliary maintenance device according to claim 8, characterized in that: The locking groove (61) includes a transverse groove (611) and a circular groove (312) that are connected. The belt conveyor roller (7) moves along the transverse groove (611) to the circular groove (312) to engage. Both the top and bottom of the transverse groove (611) are provided with an elastic body (62), and the elastic body (62) is arranged in a trapezoidal shape.

10. The belt conveyor auxiliary maintenance device according to claim 1, characterized in that: The top of the top cover (3) is provided with a mounting groove (31), and two drive motors (4) are installed on both sides of the mounting groove (31) on the top of the top cover (3). The coupling (41) is disposed in the mounting groove (31).

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