A groove type carrier roller group for a belt conveyor capable of quickly replacing carrier rollers in situ

Abstract

The utility model discloses a kind of groove type carrier roller groups of belt conveyor with in-situ quick replacement carrier roller, it is related to belt conveying equipment technical field, it includes crossbeam and the carrier roller group on the crossbeam;The carrier roller group includes one middle carrier roller and two side carrier rollers;The middle carrier roller is connected in the crossbeam by middle support column, two side carrier rollers are located in the two sides of the middle carrier roller, and are connected in the crossbeam by side carrier roller frame respectively;Hinge seat is provided on the crossbeam, one end of the side carrier roller frame is hinged with the hinge seat by pin shaft, angle fixing device is further provided between the crossbeam and the side carrier roller frame, and the angle fixing device is used to support and limit the inclination angle of the side carrier roller frame. By this, the utility model can simplify the installation and replacement mode of carrier roller, improve replacement efficiency, further guarantee conveying safety.

Description

Technical Field

[0001] This utility model relates to the technical field of belt conveyor equipment, specifically to a trough-type idler group for belt conveyors that allows for quick and in-situ replacement of idlers. Background Technology

[0002] Belt conveyors, as the most important continuous conveying equipment for bulk materials, are widely used in metallurgy, mining, power plants, ports, grain and chemical industries.

[0003] Idler rollers are one of the main components of belt conveyors. They support the conveyor belt and the material on it, reducing the belt's running resistance, ensuring the belt's sag does not exceed technical specifications, and allowing the belt to run smoothly in the predetermined direction. As a major component of a belt conveyor, idlers account for approximately 10% to 20% of the total cost of the conveyor, and their total weight accounts for approximately 30% to 40% of the machine's weight. They are the primary focus of daily management, maintenance, and replacement. If idlers rotate inflexibly, it will increase the conveyor's power consumption; stalled idlers will cause wear and tear on the more expensive conveyor belt; and in the case of belt conveyors used in underground coal mines, it can even lead to serious accidents such as mine gas and coal dust explosions. Therefore, regular inspection of idlers, especially the timely replacement of damaged idlers, is crucial.

[0004] Material impact and mechanical wear cause severe wear on the idler rollers. To ensure conveying safety, they need to be inspected and replaced periodically. Replacement typically involves lifting the conveyor belt to a certain height and then removing the idler roller manually or mechanically. However, because the side supports are usually welded to the bracket and are quite high, they obstruct the side idler rollers, making disassembly and replacement very inconvenient. Compared to the side idler rollers, although the intermediate idler rollers are installed horizontally, the movement of the intermediate idler rollers in a standard trough-type idler frame will interfere with the side idler rollers without removing them, making it impossible to remove the intermediate idler rollers. The heavy weight of the idler rollers also makes interference easy to occur, even with auxiliary handling equipment, further complicating replacement. Utility Model Content

[0005] To overcome the above-mentioned defects, the purpose of this utility model is to provide a trough-type idler group for belt conveyors that allows for quick and in-situ replacement of idlers, which simplifies the installation and replacement of idlers, improves replacement efficiency, and further ensures conveying safety.

[0006] To achieve the above objectives, this utility model provides a trough-type idler group for a belt conveyor with in-situ quick replacement of idlers, characterized in that it includes a crossbeam and an idler group located on the crossbeam; the idler group includes a central idler and two side idlers;

[0007] The central idler roller is connected to the crossbeam via a central support column, and the two side idler rollers are located on both sides of the central idler roller and are respectively connected to the crossbeam via side idler roller frames;

[0008] A hinge seat is provided on the crossbeam, and one end of the side roller frame is hinged to the hinge seat by a pin. An angle fixing device is also provided between the crossbeam and the side roller frame. The angle fixing device is used to support and limit the tilt angle of the side roller frame.

[0009] Preferably, the angle fixing device includes a side support column, the lower end of which is hinged to the crossbeam via a side support column hinge seat, and a support seat is provided on the top of the side support column. The upper surface of the support seat is inclined and fits against the lower surface of the side roller frame and is fitted with fasteners.

[0010] Preferably, the fastener is an E-type retaining pin.

[0011] Preferably, the angle fixing device includes an arc-shaped fixing plate fixedly connected to the bottom of the side roller frame, an arc-shaped limiting plate fixedly provided on the crossbeam, a limiting space being formed between the two arc-shaped limiting plates, and a through hole provided on the crossbeam along the movement direction of the arc-shaped fixing plate; the arc-shaped fixing plate is limited within the limiting space; a limiting pin hole is provided between the arc-shaped limiting plate and the arc-shaped fixing plate, and a limiting component is inserted into the limiting pin hole.

[0012] Preferably, the limiting member is an E-type fixing pin.

[0013] Preferably, crossbeam connecting plates are also fixed on both sides of the crossbeam.

[0014] The beneficial technical effects achieved by this utility model after adopting the above technical solution are as follows:

[0015] 1. By changing the connection method of the center idler and the side idlers, the center idler is connected by an independent center support, and the side idlers are connected by a side idler frame. The side idler frame is supported by a hinge seat and an angle fixing device. Therefore, when replacing them later, the side idler frame can be placed almost horizontally. This allows the use of common replacement equipment to replace all three idlers. During the replacement process, the center idler will not interfere with the side idlers on both sides, making the operation more convenient and the replacement efficiency higher.

[0016] 2. Two angle fixing devices are set up. One is that the side support can rotate a certain angle along the hinge seat of the side support, and the other is that the arc-shaped fixing plate slides along the arc-shaped limiting plate to change the angle of the side roller frame. Both use E-type fixing pins for limiting. Due to the limited space in the well, the replacement operation can be carried out in a very small space. The effect is excellent and the replacement is extremely simple. Attached Figure Description

[0017] Figure 1 This is a front view of one of the usage states of this utility model;

[0018] Figure 2 yes Figure 1 A three-dimensional reference diagram;

[0019] Figure 3 yes Figure 2 A schematic diagram of the decomposition state;

[0020] Figure 4 This is a front view of another usage state of this utility model;

[0021] Figure 5 yes Figure 4 A three-dimensional reference diagram;

[0022] Figure 6 yes Figure 5 A schematic diagram of the decomposition state;

[0023] In the diagram,

[0024] 1. Crossbeam; 11. Hinge seat; 12. Through hole;

[0025] 2. Middle idler roller; 21. Middle support column;

[0026] 3. Side idler rollers; 31. Side idler roller frame;

[0027] 4. Angle fixing device; 41. Side support column; 411. Support column hinge seat; 42. Support seat; 43. Arc-shaped fixing plate; 44. Arc-shaped limiting plate; 45. E-type fixing pin. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0029] See Figures 1-6This utility model provides a trough-type idler assembly for a belt conveyor with in-situ quick idler replacement, including a crossbeam 1 and an idler assembly located on the crossbeam 1; the idler assembly includes a central idler 2 and two side idlers 3; the central idler 2 is connected to the crossbeam 1 via a central support column 21, and the two side idlers 3 are located on both sides of the central idler 2 and are respectively connected to the crossbeam 1 via side idler frames 31; the crossbeam 1 is used for overall support, and generally, connecting plates are welded to both sides of the crossbeam 1 for support and fixation. A set of idler assemblies generally includes one central idler 2 and two side idlers 3. The two sides of the central idler 2 are directly installed in the grooves of the central support column 21, while the two side idlers 3 are respectively connected to their respective side idler frames 31.

[0030] A hinge seat 11 is provided on the crossbeam 1. One end of the side roller frame 31 is hinged to the hinge seat 11 via a pin. An angle fixing device 4 is also provided between the crossbeam 1 and the side roller frame 31. The angle fixing device 4 is used to support and limit the tilt angle of the side roller frame 31. See also Figure 1 and Figure 3 The side idler frame 31 of this utility model has two shapes. Both are located near the middle idler 2 and are connected to the crossbeam 1 via a hinge seat 11, allowing them to rotate at a certain angle. Depending on the conveyor belt's conveying requirements, regardless of which angle fixing device 4 is used, the height and tilt angle of both side idler frames 31 must remain consistent during operation, meeting the most basic conveying needs. When it is necessary to replace or repair the middle idler 2 or side idler 3, if the conveyor belt span is too large, it is generally necessary to use other auxiliary support devices to first lift the conveyor belt to a certain height, then remove the angle fixing device 4, and then, depending on the installation method, rotate the side idler frame 31 at a certain angle to replace the side idler 3 and the middle idler 2.

[0031] See Figures 1-3 In the first embodiment, the angle fixing device 4 of this utility model includes a side support column 41. The lower end of the side support column 41 is hinged to the crossbeam 1 through a side support column hinge seat 411. A support seat 42 is provided on the top of the side support column 41. The upper surface of the support seat 42 is inclined and fits against the lower surface of the side roller frame 31, and a fastener is inserted therein. The side support column 41 is straight, and the top is provided with a support seat 42 that is adapted to the side roller frame 31. The support seat 42 is generally arranged at an angle. After the connection is completed, an E-type fixing pin 45 or a threaded fastener is used as the fastener. The E-type fixing pin 45 is faster to install and remove, and the rigidity requirement can be met by insertion. When replacing, the E-type fixing pin 45 is removed, and the side support column 41 is rotated outward around the support column hinge seat 411 until the side roller frame 31 is almost horizontal. Then the side roller 3 and the middle roller 2 are removed.

[0032] See Figures 4-6In the second embodiment, the angle fixing device 4 of this utility model includes an arc-shaped fixing plate 43 fixedly connected to the bottom of the side roller frame 31, an arc-shaped limiting plate 44 fixedly provided on the crossbeam 1, and a limiting space formed between the two arc-shaped limiting plates 44. A through hole 12 is provided on the crossbeam 1 along the movement direction of the arc-shaped fixing plate 43; the arc-shaped fixing plate 43 is limited within the limiting space; a limiting pin hole is provided between the arc-shaped limiting plate 44 and the arc-shaped fixing plate 43, and a limiting component is inserted into the limiting pin hole. The second embodiment is essentially the same as the first embodiment, and is more suitable for scenarios with limited space, especially when it is inconvenient for some side support columns 41 to rotate outwards. In the initial state, the arc-shaped fixing plate 43 is fixedly connected to the side roller frame 31, and the height and tilt angle of the side roller frame 31 are fixed by the limiting pin hole and the limiting component. In this embodiment, the limiting component can also be an E-type fixing pin 45. When the side idler roller 3 needs to be replaced, pull out the E-type fixing pin 45. The arc-shaped fixing plate 43 rotates downward along the arc-shaped limiting plate 44 and penetrates the through hole 12 on the crossbeam 1. At this time, the two arc-shaped limiting plates 44 mainly serve as guides. After rotation, the side idler roller frame 31 is almost horizontal. Then, using auxiliary tools such as a gripping robot, first rotate the side idler roller frame 31 to a certain angle without interference, and then remove the middle idler roller 2. There will be no interference when replacing either of them. After replacement, raise the side idler roller frame 31 to its initial position and limit it with the E-type fixing pin 45. Generally, cotter pins and other auxiliary connecting parts are also used to ensure stable operation of the equipment.

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

Claims

1. A trough-type idler set for a belt conveyor with in-situ quick-change idler rollers, characterized in that, It includes a crossbeam and a roller assembly located on the crossbeam; the roller assembly includes a center roller and two side rollers. The central idler roller is connected to the crossbeam via a central support column, and the two side idler rollers are located on both sides of the central idler roller and are respectively connected to the crossbeam via side idler roller frames; A hinge seat is provided on the crossbeam, and one end of the side roller frame is hinged to the hinge seat via a pin. An angle fixing device is also provided between the crossbeam and the side roller frame. The angle fixing device is used to support and limit the tilt angle of the side roller frame.

2. The trough-type idler set for belt conveyors with in-situ quick-replacement idler assembly according to claim 1, characterized in that, The angle fixing device includes a side support column, the lower end of which is hinged to the crossbeam via a side support column hinge seat. A support seat is provided on the top of the side support column, the upper surface of which is inclined and fits against the lower surface of the side roller frame and is fitted with fasteners.

3. The trough-type idler group for belt conveyors with in-situ quick-replacement idler group according to claim 2, characterized in that, The fastener is an E-type fixing pin.

4. The trough-type idler set for belt conveyors with in-situ quick-replacement idler assembly according to claim 1, characterized in that, The angle fixing device includes an arc-shaped fixing plate fixedly connected to the bottom of the side roller frame, an arc-shaped limiting plate fixedly provided on the crossbeam, a limiting space formed between the two arc-shaped limiting plates, a through hole provided on the crossbeam along the movement direction of the arc-shaped fixing plate; the arc-shaped fixing plate is limited within the limiting space; a limiting pin hole is provided between the arc-shaped limiting plate and the arc-shaped fixing plate, and a limiting component is inserted into the limiting pin hole.

5. The trough-type idler set for belt conveyors with in-situ quick-replacement idler assembly according to claim 4, characterized in that, The limiting component is an E-type fixing pin.

6. The trough-type idler set for belt conveyors with in-situ quick-replacement idler assembly according to claim 1, characterized in that, The two sides of the crossbeam are also fixed with crossbeam connecting plates.

Images