Mining belt conveyor carrier roller frame and carrier roller replacing device

Abstract

The invention relates to the technical field of belt conveying equipment, and discloses a mining belt conveyor carrier roller frame and a carrier roller replacing device.The mining belt conveyor carrier roller frame comprises a quick release frame and main brackets on the two sides of the quick release frame, connecting holes are formed in the surface of the quick release frame, and a plurality of carrier roller frames are fixedly connected to the top of the quick release frame; the connecting assembly is arranged in the main bracket and used for connecting the main bracket with the quick release frame, the connecting assembly comprises a clamping block which is connected in the main bracket in a sliding mode, and when the two ends of the clamping block are located in the main bracket and the quick release frame respectively, the clamping block is connected with the quick release frame in a sliding mode. The main bracket and the quick release frame are located on the same horizontal line, and the fixing assembly is used for fixing the main bracket on the belt conveyor. Under the condition that the belt is not lifted to cause damage, the quick-release frame can be quickly separated so as to achieve the effect of conveniently replacing the carrier roller.

Description

Technical Field

[0001] This invention relates to the field of belt conveyor equipment technology, specifically to a mining belt conveyor idler frame and idler replacement device. Background Technology

[0002] Mining belt conveyors are crucial continuous transportation equipment in modern mining production, undertaking the key task of transporting bulk materials such as raw coal and ore. Their core working principle involves a conveyor belt forming a closed loop around the head and tail rollers as the load-bearing and traction component, while idler rollers act as the core support components, evenly supporting the weight of the conveyor belt and the materials on it, and guiding the conveyor belt to run stably.

[0003] The number of idlers is extremely large, covering the entire length of the machine. Due to the large number of idlers and the harsh working environment, they are also one of the most easily damaged parts of the belt conveyor. Regularly replacing idlers is a frequent and necessary maintenance operation.

[0004] Currently, the most common traditional replacement method in the industry is to use lifting tools to lift the heavy conveyor belt as a whole, so that it is out of contact with the idlers, in order to create enough operating space to remove the damaged idlers from the support and replace them. However, the lifting process can easily cause excessive stretching of the conveyor belt under tension, resulting in irreversible plastic deformation or internal damage, thereby reducing the belt's lifespan. At the same time, improper operation may also cause belt misalignment, damage to the joints, and pose significant safety risks. Summary of the Invention

[0005] The purpose of this invention is to provide a mining belt conveyor idler frame and idler replacement device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] First aspect:

[0008] A mining belt conveyor idler frame includes a quick-release frame and main supports on both sides. The quick-release frame has connection holes on its surface. Several idler frames are fixedly connected to the top of the quick-release frame, and several main idler rollers are connected through the idler frames.

[0009] A connecting component is disposed within the main bracket for connecting the main bracket and the quick-release bracket together. The connecting component includes a locking block slidably connected within the main bracket. When the two ends of the locking block are respectively located within the main bracket and the quick-release bracket, the main bracket and the quick-release bracket are on the same horizontal line.

[0010] It also includes a fixing component for securing the main bracket to the belt conveyor.

[0011] Preferably, the locking block is connected to the main bracket by a spring.

[0012] Preferably, the surface of the card block is provided with an inclined groove, and the surface of the main bracket is provided with a slot adapted to the inclined groove.

[0013] Preferably, fixing blocks are fixedly connected to both sides of the quick-release bracket, and a fixing plate is fixedly connected to the side of the main bracket near the fixing blocks. Screw holes are opened on the surfaces of the fixing plate and the fixing blocks, and bolts are installed through the screw holes.

[0014] Preferably, the fixing component includes a mounting block fixedly connected to the side of the main bracket away from the quick-release bracket, and the surface of the mounting block has a plurality of mounting holes.

[0015] The second aspect:

[0016] A replacement device for a mining belt conveyor idler roller includes a replacement frame, on the surface of which several auxiliary frames are fixedly connected, and several auxiliary idler rollers are connected through the auxiliary frames.

[0017] The surface of the replacement frame is fixedly connected with several plugs that are adapted to the slots;

[0018] It also includes a lifting assembly for lowering the height of the quick-release frame.

[0019] Preferably, the lifting assembly includes a U-shaped frame fixedly connected to the bottom of the changing frame, a plurality of hydraulic cylinders fixedly connected to the surface of the U-shaped frame, a movable block fixedly connected to the output end of the hydraulic cylinders, and a connecting plate adapted to the connecting hole fixedly connected to the surface of the movable block.

[0020] Preferably, the surface of the replacement frame is provided with a slot, and a roller is rotatably connected in the slot.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. This invention improves upon existing idler frames by separating the main support frame and the quick-release frame into two parts connected by a locking block. When connected, they form a single unit, without affecting the normal lifting and conveying operation of the idler frame. When it is necessary to replace the idler, the quick-release frame can be quickly detached and released by pulling the locking block out of it. The quick-release frame is directly connected to the main idler, thus facilitating the replacement of the idler and achieving the effect of detaching and replacing the idler without lifting the belt.

[0023] 2. This invention, by setting up a replacement frame, allows the top auxiliary idler roller to provide temporary belt support when idler roller replacement is needed. This ensures that idler roller replacement can be performed without stopping the machine, even while the belt is running normally. The connecting plate and insert plate are inserted into the corresponding connecting holes and slots, respectively, to easily detach from the main support frame and quick-release frame. With the help of the retraction of the hydraulic cylinder, the quick-release frame is lowered, fully supporting the belt on the surface of the auxiliary idler roller. This lowers the main idler roller and separates it from the belt, facilitating idler roller replacement and effectively reducing belt damage and accidents caused by lifting the belt. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram illustrating the connection method of the main bracket, quick-release bracket, and locking block in this invention;

[0026] Figure 3 This is a schematic diagram illustrating the disassembly of the main bracket and the quick-release bracket in accordance with the present invention;

[0027] Figure 4 This is a schematic diagram illustrating the replacement rack and its surrounding structure according to the present invention;

[0028] Figure 5 This is a schematic diagram illustrating the state of the idler roller changing device after it is engaged with the idler roller frame, as per the present invention.

[0029] In the diagram: 1. Main bracket; 11. Mounting block; 12. Mounting hole; 2. Quick-release bracket; 21. Connecting hole; 22. Idler roller bracket; 221. Main idler roller; 222. Fixing block; 23. Fixing plate; 231. Bolt; 3. Clamping block; 31. Spring; 32. Inclined groove; 321. Slot; 4. Replacement bracket; 41. Auxiliary bracket; 411. Secondary idler roller; 42. Clamping groove; 421. Roller; 43. U-shaped bracket; 431. Hydraulic cylinder; 432. Movable block; 433. Connecting plate; 44. Insert block. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1:

[0032] This invention discloses a mining belt conveyor idler frame, such as... Figure 1-3As shown, the conveyor includes a quick-release frame 2 and two main brackets 1 on its sides. The main brackets 1 are used to connect to the side supports of the belt conveyor, while the quick-release frame 2 is located at the center of the two main brackets 1. The surface of the quick-release frame 2 has a connecting hole 21. Several idler frames 22 are fixedly connected to the top of the quick-release frame 2, and several main idler rollers 221 are connected through the idler frames 22. In the normal state, there are three main idler rollers 221. The central main idler roller 221 is arranged in parallel, and the two main idler rollers 221 on both sides are arranged at an angle, forming an inverted trapezoid. The belt directly supports the belt. The three main idler rollers 221 are recessed in the center to facilitate the transport of coal, coal gangue, etc. They also include a connecting component, which is set in the main support frame 1 to connect the main support frame 1 and the quick-release frame 2. The connecting component includes a locking block 3 that is slidably connected in the main support frame 1. When the two ends of the locking block 3 are respectively located in the main support frame 1 and the quick-release frame 2, the main support frame 1 and the quick-release frame 2 are on the same horizontal line. At this time, the main support frame 1 and the quick-release frame 2 are in contact to form a normal working state. It also includes a fixing component for fixing the main support frame 1 to the belt conveyor.

[0033] Specifically, during installation, the main bracket 1 is fixed to the belt conveyor support using a fixing component. Then, the quick-release bracket 2, along with its top idler frame 22 and main idler 221, is installed at the center of the two main brackets 1. By inserting the locking block 3 inside the main bracket 1 into the quick-release bracket 2, the main bracket 1 and the quick-release bracket 2 can be quickly connected. Furthermore, when it is necessary to disassemble and replace the idler, the quick-release bracket 2 can be quickly separated by pulling out the locking block 3 inside the main bracket 1 from the quick-release bracket 2. This also facilitates the disassembly, replacement, or maintenance of the top main idler 221. By setting the existing integral idler frame 22 as a separate quick-release bracket 2 and main bracket 1, the quick-release bracket 2 can be easily disassembled when it is necessary to replace or disassemble the idler, providing convenience for idler removal. Moreover, it eliminates the need to lift the belt body, thus avoiding problems such as belt strain and misalignment. Furthermore, it can effectively improve the maintenance efficiency of the belt conveyor. In addition, the entire process does not require stopping the machine.

[0034] The locking block 3 is connected to the main bracket 1 via a spring 31. Both ends of the spring 31 are fixedly connected to the locking block 3 and the main bracket 1, respectively. By setting the spring 31, the locking block 3 can always be kept in the state of being popped out and inserted into the quick-release bracket 2 under the action of the elastic force of the spring 31, so as to avoid the locking block 3 from accidentally disengaging from the quick-release bracket 2 and causing the quick-release bracket 2 to fall.

[0035] like Figure 2 and Figure 3As shown, in this embodiment, the surface of the card block 3 is provided with a slanted groove 32, and the surface of the main bracket 1 is provided with a slot 321 that matches the slanted groove 32. By setting the slot 321, tools such as wrenches or pry bars can be selected from the outside, inserted into the slot 321, and continuously pushed inward. The tool contacts the slanted groove 32 on the surface of the card block 3, and during the continuous pushing process, the tool moves relative to the slanted groove 32, causing the card block 3 to slide within the main bracket 1 and the quick-release bracket 2. This makes it easy for the staff to detach the card block 3 from the quick-release bracket 2 from the outside, completing the disassembly, thereby allowing the quick-release bracket 2 to be completely detached for easy maintenance.

[0036] In one embodiment, fixing blocks 222 are fixedly connected to both sides of the quick-release bracket 2, and fixing plate 23 is fixedly connected to the side of the main bracket 1 near the fixing blocks 222. The fixing blocks 222 and fixing plate 23 can be assembled into a whole. The surfaces of the fixing plate 23 and the fixing blocks 222 are provided with screw holes, and bolts 231 are provided through the screw holes. The screw holes on the surface of the fixing blocks 222 are provided with threads, while the screw holes on the surface of the fixing plate 23 are not provided with threads. In this way, the bolts 231 can pass through the fixing plate 23 and be screwed into the fixing blocks 222, thus tightly fixing the fixing plate 23 and the fixing blocks 222. This serves as a double guarantee for the connection method of the locking block 3 into the quick-release bracket 2. The connection and fixing strength between the main bracket 1 and the quick-release bracket 2 are further strengthened by fixing with bolts 231.

[0037] In one embodiment, the fixing component includes a mounting block 11 fixedly connected to the side of the main bracket 1 away from the quick-release bracket 2. The shape of the mounting block 11 is set according to the shape and size of the brackets on both sides of different belt conveyors. The surface of the mounting block 11 is provided with a plurality of mounting holes 12. The mounting holes 12 are elongated holes, which can facilitate the adjustment of the position of the mounting block 11 according to the different mounting hole 12 positions of the belt conveyor bracket, and then fix it by tightening screws.

[0038] Example 2:

[0039] This invention discloses a replacement device for idler rollers of a mining belt conveyor, such as... Figure 3-5 As shown, the device includes a replacement frame 4, on which several auxiliary frames 41 are fixedly connected, and several secondary rollers 411 are connected through the auxiliary frames 41, consistent with the main roller 221. The secondary rollers 411 are also set in three groups, with the central secondary roller 411 arranged in parallel and the secondary rollers 411 on both sides arranged at an angle consistent with the main roller 221. When replacing the main roller 221, the secondary rollers 411 provide auxiliary support for the belt. Several insertion blocks 44 that are adapted to the slots 321 are fixedly connected to the surface of the replacement frame 4. The insertion blocks 44 can be fully inserted into the slots 321. The device also includes a lifting assembly for lowering the height of the quick-release frame 2.

[0040] Specifically, by moving the replacement frame 4 to fit against the side of the main support frame 1 where the idler roller to be removed needs to be removed, and aligning it with the slot 321, the entire replacement frame 4 is pushed to insert the insert block 44 into the slot 321. As the insert block 44 is inserted, it matches the inclined groove 32 on the surface of the locking block 3, and pushes the inclined groove 32 to move the locking block 3 laterally, thereby disengaging it from the quick-release frame 2, thus canceling the connection between the quick-release frame 2 and the main support frame 1. Subsequently, the quick-release frame 2 and its top idler roller frame 22 and main idler roller 221 are lowered using the lifting assembly. Throughout the process, the belt is supported by the auxiliary idler roller 411 to ensure that the belt is not pulled or deformed and damaged, while the main idler roller 221 can be easily lowered for replacement and disassembly. In addition, the entire process can be carried out without stopping the machine.

[0041] The lifting assembly includes a U-shaped frame 43 fixedly connected to the bottom of the changing frame 4. Several hydraulic cylinders 431 are fixedly connected to the surface of the U-shaped frame 43. The hydraulic cylinders 431 are connected to an external hydraulic oil supply device. A movable block 432 is fixedly connected to the output end of the hydraulic cylinder 431, and the output end of the hydraulic cylinder 431 faces upward. A connecting plate 433 adapted to the connecting hole 21 is fixedly connected to the surface of the movable block 432. The connecting plate 433 can be fully inserted into the connecting hole 21, so that the movable block 432 is connected to the quick-release frame 2 through the connecting plate 433.

[0042] Specifically, during the process of pushing the replacement frame 4 towards the main support frame 1, the insert block 44 is inserted into the slot 321 to ensure that the quick-release frame 2 is disengaged from the main support frame 1. At the same time, the connecting plate 433 can be inserted into the connecting hole 21 to connect the movable block 432 with the quick-release frame 2, preventing the quick-release frame 2 from falling after being disengaged from the main support frame 1. Subsequently, through the contraction and descent of the hydraulic cylinder 431, the movable block 432 at its output end drives the connecting plate 433 and the quick-release frame 2 to fall synchronously, causing the main idler roller 221 at the top of the quick-release frame 2 to disengage from the belt. At this time, the belt pressure will be transferred to the surface of the auxiliary idler roller 411. After the main idler roller 221 descends, it is a certain height away from the belt, leaving space for subsequent maintenance and replacement of the idler roller, thus facilitating maintenance by the staff.

[0043] The surface of the replacement frame 4 is provided with a slot 42. The size of the slot 42 is similar to that of the mine belt conveyor support, and it can be completely locked onto the supports on both sides of the belt conveyor. A roller 421 is rotatably connected inside the slot 42. The roller 421 facilitates the movement of the entire replacement frame 4 on the belt conveyor support by means of the rolling of the roller 421, making it easy to adjust the position of the replacement frame 4.

[0044] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mining belt conveyor idler frame (22), comprising a quick-release frame (2) and main brackets (1) on both sides thereof, wherein the quick-release frame (2) has connecting holes (21) on its surface, characterized in that: The quick-release frame (2) has several roller frames (22) fixedly connected to its top, and several main rollers (221) are connected through the roller frames (22). A connecting component is disposed within the main bracket (1) for connecting the main bracket (1) and the quick-release bracket (2) together. The connecting component includes a locking block (3) slidably connected within the main bracket (1). When the two ends of the locking block (3) are respectively located within the main bracket (1) and the quick-release bracket (2), the main bracket (1) and the quick-release bracket (2) are on the same horizontal line. It also includes a fixing component for securing the main bracket (1) to the belt conveyor.

2. The mining belt conveyor idler frame (22) according to claim 1, characterized in that: The card block (3) is connected to the main bracket (1) via a spring (31).

3. The mining belt conveyor idler frame (22) according to claim 1, characterized in that: The card block (3) has a groove (32) on its surface, and the main bracket (1) has a slot (321) that matches the groove (32) on its surface.

4. The mining belt conveyor idler frame (22) according to claim 1, characterized in that: The quick-release bracket (2) has fixed blocks (222) fixedly connected to both sides of the surface. The main bracket (1) has a fixed plate (23) fixedly connected to the side of the fixed block (222). The fixed plate (23) and the fixed block (222) have screw holes on their surfaces and bolts (231) are installed through the screw holes.

5. The mining belt conveyor idler frame (22) according to claim 1, characterized in that: The fixing component includes a mounting block (11) fixedly connected to the side of the main bracket (1) away from the quick-release bracket (2), and the surface of the mounting block (11) is provided with a plurality of mounting holes (12).

6. A replacement device for a mining conveyor roller, applied to a mining conveyor roller frame (22) as described in any one of claims 1-5, characterized in that: Includes a replacement frame (4), on which several auxiliary frames (41) are fixedly connected, and several auxiliary rollers (411) are connected through the auxiliary frames (41). The replacement frame (4) has several plugs (44) that are adapted to the slot (321) fixedly connected to its surface. It also includes a lifting assembly for lowering the height of the quick-release frame (2).

7. A replacement device for a mining belt conveyor roller according to claim 6, characterized in that: The lifting assembly includes a U-shaped frame (43) fixedly connected to the bottom of the changing frame (4). Several hydraulic cylinders (431) are fixedly connected to the surface of the U-shaped frame (43). A movable block (432) is fixedly connected to the output end of the hydraulic cylinder (431). A connecting plate (433) adapted to the connecting hole (21) is fixedly connected to the surface of the movable block (432).

8. A replacement device for a mining belt conveyor roller according to claim 6, characterized in that: The replacement frame (4) has a slot (42) on its surface, and a roller (421) is rotatably connected in the slot (42).

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