A belt conveyor with on-line maintenance

Abstract

The utility model discloses a kind of online maintenance's belt conveyor, it is related to belt conveying technology field, including the belt conveyor main body with multiple groups of groove type carrier roller groups on it, further include lifting carrier roller group between any two adjacent groove type carrier roller groups, and the layout of lifting carrier roller group and groove type carrier roller group is identical;Further include the driving member for driving lifting carrier roller group to make up-down plumb motion, the driving member is used to make lifting carrier roller group have higher high position state of groove type carrier roller group and lower low position state of groove type carrier roller group;When lifting carrier roller group is in high position state, the carrier roller of lifting carrier roller group carries belt conveyor main body's conveying belt and is lifted above groove type carrier roller group.The utility model sets up liftable lifting carrier roller group in adjacent with conventional groove type carrier roller group, and utilizes driving member to control its switching between high-low position state, solve the problem that traditional maintenance must be stopped.

Description

Technical Field

[0001] This utility model relates to the field of belt conveying technology, specifically to a belt conveyor that can be maintained online. Background Technology

[0002] In the current chemical industry production process, belt conveyors are a common and efficient transportation equipment. Among them, trough idler groups are an important component of belt conveyors. Trough idler groups are set up in multiple evenly spaced groups, and these groups are laid out flat along the belt conveying direction. They play a role in supporting the conveyor belt and materials to ensure a smooth and efficient conveying process.

[0003] like Figure 1 The diagram shows a schematic of a single set of trough-shaped idler rollers in the prior art. 101 represents a belt conveyor, 102 represents a mounting bracket on the belt conveyor, 103 represents an inclined idler roller on the mounting bracket (two sets of inclined idlers are provided, with the angle between the axis of the inclined idler roller and the horizontal line generally designed to be 30° or 35°), 104 represents a horizontal idler roller on the mounting bracket, located between the two inclined idlers, and 105 represents the belt of the belt conveyor. The two sets of inclined idlers and the horizontal idler roller together form a trough-shaped support area to support the belt.

[0004] Technicians observed that the trough idler roller assembly at the material drop point of the belt conveyor experienced a higher failure frequency compared to other locations. Comprehensive analysis revealed that when material falls through the guide trough, its gravitational potential energy is rapidly converted into impact kinetic energy, directly impacting the belt and the trough idler roller assembly below. This continuous impact not only causes rapid abrasive wear on the roller surface but also severely damages the internal bearing system, disrupting its sealing structure and allowing dust and moisture to infiltrate, accelerating bearing seizure and failure, ultimately leading to a series of malfunctions.

[0005] To address the aforementioned technical challenges, the common solution in existing technologies is to periodically replace the trough-type idler rollers at the material drop point. However, using this solution requires shutting down the entire conveyor line each time it is replaced, which interrupts the entire material conveying process. This production interruption not only directly results in losses of capacity and time, but also causes delays in upstream and downstream production processes in continuous industrial production scenarios. Utility Model Content

[0006] The purpose of this invention is to solve the problems in the prior art by proposing an online maintenance belt conveyor that can quickly replace faulty trough idler groups without stopping the machine, thereby ensuring the continuity of production.

[0007] To solve the above problems, this utility model provides the following technical solution: A belt conveyor capable of online maintenance includes a belt conveyor body having multiple sets of trough idler groups thereon, and a lifting idler group disposed between any two adjacent sets of trough idler groups, wherein the lifting idler group has the same layout as the trough idler group. It also includes a drive unit for driving the lifting idler group to make vertical up-down movements, the drive unit being used to make the lifting idler group have a high position state higher than the trough idler group and a low position state lower than the trough idler group. When the lifting idler group is in a high position, the idlers of the lifting idler group lift the conveyor belt of the belt conveyor body above the trough idler group, thereby creating operating space between the conveyor belt and the lifting idler group for replacing the trough idler group.

[0008] As a further embodiment of this utility model: the lifting idler group includes a support bracket that is movably installed on the main body of the belt conveyor in the vertical direction, two sets of first idlers are respectively inclinedly arranged on both sides of the support bracket, and a second idler is horizontally arranged in the middle of the support bracket, and the second idler is located between the two sets of first idlers.

[0009] As a further embodiment of this utility model: a movable block is movably installed on the main body of the belt conveyor along the vertical direction, and the movable block is fixedly connected to the bearing bracket, so as to realize the movable installation of the bearing bracket on the main body of the belt conveyor.

[0010] As a further embodiment of this utility model: the driving component includes a threaded rod that is rotatably mounted on the main body of the belt conveyor in the vertical direction and a drive motor mounted on the main body of the belt conveyor. The output shaft of the drive motor is connected to the threaded rod in a transmission manner, and the moving block is threadedly sleeved on the outside of the threaded rod.

[0011] As a further embodiment of this utility model: a pin shaft is fixedly installed on the main body of the belt conveyor, extending upward through the bearing support, and a limit block is fixedly installed at the top of the pin shaft, so that when the lifting idler group is in a high position, the limit block and the bearing support are in a state of contact.

[0012] As a further embodiment of this utility model: telescopic support members are provided on both sides of the bearing bracket, so that when the lifting roller group is in a high position, the two telescopic support members are in an extended state and both abut against the main body of the belt conveyor.

[0013] As a further embodiment of this utility model: the telescopic support includes a telescopic rod hinged to the side of the bearing bracket, and a pad is provided on the piston rod of the telescopic rod so that when the lifting idler group is in a high position, the pad abuts against the main body of the belt conveyor.

[0014] As a further embodiment of this utility model, the telescopic rod is provided with a fastening bolt for locking its piston rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. By installing a liftable idler group adjacent to the conventional trough idler group and controlling its switching between high and low positions using a drive unit, the problem of traditional maintenance requiring machine shutdown is solved. Specifically: when the trough idler group needs to be repaired or replaced, simply activate the drive unit to raise the lift idler group to the high position, which can lift the entire conveyor belt, separating it from the target idler group. This creates a safe and sufficient operating space for maintenance work, reduces unplanned downtime, and improves production efficiency.

[0016] 2. By adopting a trough shape layout that is completely consistent with conventional trough idler groups, the lifting idler group can perfectly inherit and maintain the inherent trough cross-section of the belt when lifting the belt, ensuring that the material is stably constrained in the center of the trough during the lifting process, thus preventing the material from spilling.

[0017] 3. By employing a drive motor and a screw transmission mechanism with a threaded rod, precise control of the lifting position of the idler roller assembly is achieved. Simultaneously, the screw transmission mechanism itself possesses excellent self-locking characteristics. When the idler roller assembly reaches the high position, even if the drive motor is de-energized, the system can reliably maintain the current position thanks to the self-locking force of the thread, enhancing safety and stability during maintenance operations and preventing the risk of accidental falls.

[0018] 4. By setting up telescopic support components, temporary support can be provided for the lifting idler group in the high position, effectively dispersing part of the load on the lifting idler group and the conveyor belt, thereby greatly reducing the continuous load on the lifting drive components.

[0019] 5. The hinged telescopic rod allows the telescopic support to retract automatically in the low position, without occupying extra space and avoiding interference with other parts of the equipment. In the high position, the piston rod with the pad extends and contacts the main frame through the larger pad, increasing the force-bearing area and making the support more stable and reliable. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the structure of a single set of trough-type idler rollers in the prior art; Figure 2 This is a schematic diagram of the structure of this utility model. Figure 1 ; Figure 3 yes Figure 2 Enlarged structural diagram at point A; Figure 4 This is a schematic diagram of the structure of this utility model. Figure 2 ; Figure 5 yes Figure 4 A magnified structural diagram at point B in the middle.

[0022] In the diagram: 101, belt conveyor; 102, mounting bracket; 103, inclined idler; 104, horizontal idler; 105, belt; 1. Belt conveyor body; 2. Lifting idler assembly; 3. Conveyor belt; 4. Bearing bracket; 5. First idler; 6. Second idler; 7. Moving block; 8. Threaded rod; 9. Drive motor; 10. Pin; 11. Limiting block; 12. Telescopic rod; 13. Pad; 14. Fastening bolt. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 2-5 As shown, an online maintenance-enabled belt conveyor includes a belt conveyor body 1 as in the prior art. The belt conveyor body 1 has multiple sets of evenly spaced trough rollers. The multiple sets of trough rollers are laid flat along the conveying direction of the conveyor belt 3 to support the conveyor belt 3.

[0025] Furthermore, this application provides a lifting idler group 2 on the main body 1 of the belt conveyor. The lifting idler group 2 is located between any two adjacent groups of trough idler groups. The lifting idler group 2 can move up or down in the vertical direction so that it has a high position higher than the trough idler group and a low position lower than the trough idler group, and the two states can be switched freely.

[0026] Based on the problem described in the background art that the trough idler groups at the material drop point are easily affected by material impact and require frequent periodic replacement, this application proposes to place the lifting idler group 2 between the two trough idler groups at the material drop point. Therefore, when wear occurs on the roller surface of the trough idler group or bearing jamming affects the conveyor belt 3, the operator can drive the lifting idler group 2 upwards, placing it in a high position. At this time, the rollers of the lifting idler group 2 will lift the conveyor belt 3 above the trough idler group, providing temporary support for the conveyor belt 3 to maintain continuous feeding. Subsequently, the operator can repair, maintain, or replace the faulty trough idler group. After completion, the lifting idler group 2 is slowly switched from the high position to the low position, thus completing the online maintenance of the faulty trough idler group. This reduces unplanned downtime and improves production efficiency.

[0027] Of course, the location of the lifting idler group 2 is not limited to simply placing it at the material drop point. For example, it can also be placed at the transition point where the conveyor belt 3 transitions from the return section to the carrying section. In this position, the idlers of the trough idler group need to withstand the additional pressure and friction caused by the change in the direction of the conveyor belt 3, which makes it easy for material to accumulate here, causing abnormal wear of the idlers and belt misalignment. It should be noted that the actual positions of the high and low states mentioned above need to be determined based on factors such as the specifications of the belt conveyor body 1 and the parameters of the conveyor belt 3.

[0028] The overall structure of the lifting idler group 2 can be consistent with the structure of the trough idler group in the prior art. That is, the lifting idler group 2 includes a support bracket 4 that is movably installed on the belt conveyor body 1 in the vertical direction. Two sets of first idlers 5 are respectively inclined on both sides of the support bracket 4. A second idler 6 is horizontally arranged in the middle of the support bracket 4, and the second idler 6 is located between the two sets of first idlers 5.

[0029] In order to enable the lifting idler group to be movably installed on the belt conveyor body, this application provides a movable block 7 that is movably installed on the belt conveyor body 1 along the vertical direction, and the movable block 7 is fixedly connected to the bearing bracket 4. By adding the movable block 7, the bearing bracket 4 can be movably installed on the belt conveyor body 1.

[0030] Furthermore, in order to achieve the position switching of the lifting roller group 2 along the vertical direction, this application also includes a driving member, which is used to drive the lifting roller group 2 to move vertically up and down, so as to achieve the switching of the lifting roller group 2 between the high position and the low position.

[0031] The drive mechanism can be components such as electric actuators, cylinders, and traction pulley systems, as used in existing technologies. Figure 3As shown, this application proposes a structure: the driving component includes a threaded rod 8 rotatably mounted on the belt conveyor body 1 in a vertical direction and a drive motor 9 mounted on the belt conveyor body 1. The output shaft of the drive motor 9 is connected to the threaded rod 8 in a transmission manner, and a moving block 7 is threadedly sleeved on the outside of the threaded rod 8. When the drive motor 9 is started, the threaded rod 8 rotates. Since the moving block 7 is mounted vertically on the belt conveyor body 1, the rotation of the threaded rod 8 can drive the moving block 7 to move upward or downward, thus realizing the up-and-down movement of the lifting idler roller group 2. It should be noted that... Figure 2 The diagram shows a configuration with two sets of drivers, but in actual use, the number of drivers is not limited. It should be noted that... Figure 2 Taking the case shown as an example, when two sets of driving components are set, the two sets of driving motors 9 in the two sets of driving components work synchronously. The control logic for their synchronous operation is a conventional technical means in the existing technology, which will not be elaborated here in order to avoid cumbersome writing.

[0032] like Figure 2 As shown, in order to determine the high position of the lifting idler assembly 2, this application has a pin 10 fixedly installed on the belt conveyor body 1, extending upward through the bearing support 4, and a limit block 11 fixedly installed at the top of the pin 10. By driving the bearing support 4 to move upward until the bearing support 4 and the bottom of the limit block 11 are in contact, it indicates that the bearing support 4 has moved upward to the correct position, which is the high position of the lifting idler assembly 2. This state can be determined by... Figure 4 To represent it.

[0033] Furthermore, in order to avoid the lifting roller assembly 2 relying solely on the drive components for long-term load bearing when in a high position, this application adds a temporary support function. Specifically, telescopic support components are provided on both sides of the bearing support 4 so that when the lifting roller assembly 2 is in a high position, the two telescopic support components are extended and both abut against the belt conveyor body 1, thereby supporting the bearing support 4 upwards.

[0034] like Figure 5 As shown, the aforementioned telescopic support includes a telescopic rod 12 hinged to the side of the support bracket 4. The telescopic rod 12 is equipped with a fastening bolt 14 for locking its piston rod, and a pad 13 is provided on the piston rod of the telescopic rod 12. Under normal circumstances, when the lifting idler assembly 2 is in a low position, the telescopic rod 12 hangs downwards due to its own weight. When the lifting idler assembly 2 is in a high position, the piston rod on the telescopic rod 12 can be extended until the pad 13 on the piston rod contacts the belt conveyor body 1. Then, the fastening bolt 14 is tightened, thus achieving upward support of the support bracket 4 by the telescopic rod 12, avoiding the situation where the lifting idler assembly 2 relies solely on the drive component for long-term load-bearing when in a high position.

[0035] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A belt conveyor capable of online maintenance, comprising a belt conveyor body (1) having multiple sets of trough-type idler rollers thereon, characterized in that, It also includes a lifting roller group (2) located between any two adjacent groups of trough roller groups, and the lifting roller group (2) has the same layout as the trough roller group; It also includes a drive unit for driving the lifting roller group (2) to make vertical up-down movements, the drive unit being used to make the lifting roller group (2) have a high position state higher than the trough roller group and a low position state lower than the trough roller group. When the lifting idler group (2) is in a high position, the idler of the lifting idler group (2) lifts the conveyor belt (3) of the belt conveyor body (1) above the trough idler group, thereby creating an operating space between the conveyor belt (3) and the lifting idler group (2) for replacing the trough idler group.

2. The belt conveyor capable of online maintenance according to claim 1, characterized in that, The lifting idler group (2) includes a support bracket (4) that is movably installed on the belt conveyor body (1) in the vertical direction. Two sets of first idlers (5) are respectively inclined on both sides of the support bracket (4). A second idler (6) is horizontally arranged in the middle of the support bracket (4), and the second idler (6) is located between the two sets of first idlers (5).

3. The belt conveyor capable of online maintenance according to claim 2, characterized in that, A movable block (7) is movably installed on the main body (1) of the belt conveyor along the vertical direction, and the movable block (7) is fixedly connected to the bearing bracket (4) so ​​as to realize the movable installation of the bearing bracket (4) on the main body (1) of the belt conveyor.

4. A belt conveyor capable of online maintenance according to claim 3, characterized in that, The driving component includes a threaded rod (8) that is rotatably mounted on the belt conveyor body (1) in the vertical direction and a drive motor (9) mounted on the belt conveyor body (1). The output shaft of the drive motor (9) is connected to the threaded rod (8) in a transmission manner. The moving block (7) is threadedly sleeved on the outside of the threaded rod (8).

5. A belt conveyor capable of online maintenance according to any one of claims 2-4, characterized in that, The belt conveyor body (1) is fixedly provided with a pin (10) that extends upward through the bearing support (4), and a limit block (11) is fixedly provided at the top of the pin (10) so that when the lifting roller group (2) is in a high position, the limit block (11) and the bearing support (4) are in a contacting state.

6. A belt conveyor capable of online maintenance according to any one of claims 2-4, characterized in that, Both sides of the bearing support (4) are provided with telescopic support members so that when the lifting roller group (2) is in a high position, the two telescopic support members are in an extended state and both abut against the belt conveyor body (1).

7. A belt conveyor capable of online maintenance according to claim 6, characterized in that, The telescopic support includes a telescopic rod (12) hinged to the side of the bearing bracket (4), and a pad (13) is provided on the piston rod of the telescopic rod (12) so that when the lifting roller group (2) is in a high position, the pad (13) abuts against the belt conveyor body (1).

8. A belt conveyor capable of online maintenance according to claim 7, characterized in that, The telescopic rod (12) is provided with a fastening bolt (14) for locking its piston rod.

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