Telescopic floating carrier roller frame of belt conveyor

Abstract

The telescopic floating carrier roller frame of the belt conveyor relates to the technical field of carrier roller frames and comprises a base, two first supporting plates are arranged on the upper surface of the base in a sliding mode, the upper surfaces of the two first supporting plates are both fixedly connected with first installation plates, and a first carrier roller is jointly connected between the two first installation plates in a clamped mode. A groove is formed in the upper surface of the base, an adjusting mechanism is arranged in the groove, the two first supporting plates move through the first adjusting mechanism, the upper surfaces of the two first supporting plates are fixedly connected with two second mounting plates, and a first rotating rod is rotationally connected between the two corresponding second mounting plates. By means of the springs arranged in the two sliding grooves, when the pressure at the two ends of the belt is too large, the two second supporting plates extrude the corresponding extrusion blocks respectively, then the extrusion blocks extrude the corresponding springs respectively, the pressure can be buffered through the springs at the moment, and therefore the belt can be prevented from being dislocated.

Description

Technical Field

[0001] The utility model relates to the technical field of idler frames, in particular to a telescopic floating idler frame for a belt conveyor. Background Art

[0002] At present, belt conveyors have been widely used in the conveying systems of various materials in industries such as mines, metallurgy, and building materials. They have the characteristics of large conveying capacity and simple structure. The idler frame is an indispensable part of the belt conveyor.

[0003] Among them, a belt conveyor idler frame structure with the publication number of CN206203314U includes an idler frame, a base located on the idler frame, an intermediate idler located above the base, and two side idlers located on both sides of the intermediate idler. One end of each side idler is located above the base, and the other end is connected to the idler frame. Two first support seats are arranged on the base, and the two first support seats are respectively connected to both ends of the intermediate idler.

[0004] For the above solution, there are the following deficiencies:

[0005] In the above technical solution, during the use of the idler frame, the two ends of the belt are subjected to relatively large pressures and cannot be released in time, resulting in the belt derailing and thus affecting the normal use of the belt conveyor. Summary of the Utility Model

[0006] In view of the problems existing in the above-mentioned existing belt conveyor idler frame structure, the present utility model is proposed.

[0007] Therefore, the purpose of the present utility model is to provide a telescopic floating idler frame for a belt conveyor, which solves the problem that during the use of the idler frame, the two ends of the belt are subjected to relatively large pressures and cannot be released in time, resulting in the belt derailing and thus affecting the normal use of the belt conveyor.

[0008] In order to achieve the above purpose, the present utility model provides the following technical solutions:

[0009] A telescopic floating idler bracket for a belt conveyor, comprising a base. Two first support plates are slidably arranged on the upper surface of the base. First mounting plates are fixedly connected to the upper surfaces of the two first support plates. A first idler is jointly clamped between the two first mounting plates. A groove is formed on the upper surface of the base, and an adjusting mechanism is arranged inside the groove. The two first support plates are both moved through the first adjusting mechanism. Two second mounting plates are fixedly connected to the upper surfaces of the two first support plates respectively. A first rotating rod is rotatably connected between the corresponding two second mounting plates. Second support plates are fixedly sleeved on the rod walls of the two first rotating rods. Second idlers are arranged on one side of each of the two second support plates. Support columns are fixedly connected to the upper surfaces of the two first support plates. Chute grooves are formed on the upper surfaces of the two support columns. Extrusion blocks are slidably arranged inside the two chute grooves respectively. Springs are arranged at the lower ends of the two extrusion blocks. Second adjusting mechanisms are arranged at the lower ends of the two springs.

[0010] Preferably, the first adjusting mechanism includes a first lead screw and two sliders. The first lead screw is rotatably connected inside the groove. The two sliders are respectively threadedly sleeved on the rod walls at both ends of the first lead screw. The two sliders are respectively fixedly connected to the lower surfaces of the corresponding first support plates.

[0011] Preferably, the second adjusting mechanism includes two second rotating rods, two first bevel gears, two second bevel gears, two sleeves and two second lead screws. Cavities are formed inside the two support columns. The two second rotating rods are respectively rotatably connected to one side of the corresponding cavities. The two first bevel gears are respectively fixedly sleeved on the rod walls at one ends of the corresponding second rotating rods. The two second lead screws are respectively rotatably connected inside the corresponding chute grooves. The two sleeves are respectively arranged at the lower ends of the corresponding springs and are respectively threadedly sleeved on the rod walls of the corresponding second lead screws. The lower ends of the two second lead screws respectively penetrate through the lower surfaces of the corresponding chute grooves and extend into the corresponding cavities respectively. The two second bevel gears are respectively fixedly sleeved on the rod walls at the lower ends of the corresponding second lead screws and are respectively meshed with the corresponding first bevel gears.

[0012] Preferably, the first idler includes a left idler and a right idler. A hexagonal slot is formed on one side at one end of the left idler. A hexagonal insertion block is fixedly connected to one end of the right idler. The hexagonal insertion block is inserted inside the hexagonal slot.

[0013] Preferably, a motor is fixedly connected to one end of the base. The output end of the motor penetrates through one side of the base and is fixedly connected to the output end of the first lead screw.

[0014] Preferably, knobs are fixedly connected to one ends of the two second rotating rods.

[0015] Preferably, torsion springs are arranged on the rod walls at both ends of the first rotating rod.

[0016] Preferably, both ends of each torsion spring are respectively fixedly connected to the rod wall of the corresponding first rotating rod and the side wall of the corresponding second mounting plate.

[0017] Preferably, two limiting grooves are formed in the inner sides of the two sliding grooves, and two limiting blocks are slidably arranged in the two limiting grooves, and the two limiting blocks are respectively fixedly connected to the outer surfaces of the corresponding extrusion blocks.

[0018] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0019] 1. In the present utility model, by arranging the springs inside the two sliding grooves, when the pressures at both ends of the belt are too large, the two second support plates respectively extrude the corresponding extrusion blocks, and then each extrusion block respectively extrudes the corresponding spring. At this time, each spring can buffer the pressure, thereby preventing the belt from being displaced.

[0020] 2. In the present utility model, by starting the motor, the first lead screw rotates, and then the two sliders respectively drive the two first support plates to approach or move away from each other, so as to change the length of the first idler, making the device adaptable to belts of different widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the present utility model;

[0022] Figure 2 is of the present utility model Figure 1 sectional perspective view;

[0023] Figure 3 is of the present utility model Figure 2 enlarged schematic view of part A;

[0024] Figure 4 is of the present utility model Figure 1 partial top view of the second support plate in;

[0025] Description of the reference numerals:

[0026] 1. Base; 2. First support plate; 3. First mounting plate; 4. Second mounting plate; 5. First rotating rod; 6. Second support plate; 7. Support column; 8. Extrusion block; 9. Spring; 10. First lead screw; 11. Slider; 12. Second rotating rod; 13. First bevel gear; 14. Second bevel gear; 15. Sleeve; 16. Second lead screw; 17. Hexagonal insertion block; 18. Motor; 19. Knob; 20. Torsion spring; 21. Limiting block; 22. First idler; 23. Second idler. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0028] Embodiment 1

[0029] Refer to Figures 1-4 , the telescopic floating idler bracket of the belt conveyor includes a base 1. Two first support plates 2 are slidably arranged on the upper surface of the base 1. First mounting plates 3 are fixedly connected to the upper surfaces of the two first support plates 2. A first idler 22 is jointly clamped between the two first mounting plates 3. A groove is formed on the upper surface of the base 1, and an adjusting mechanism is arranged inside the groove. The two first support plates 2 are both moved by a first adjusting mechanism. The first adjusting mechanism includes a first lead screw 10 and two sliders 11. The first lead screw 10 is rotatably connected inside the groove. The two sliders 11 are respectively threadedly sleeved on the rod walls at both ends of the first lead screw 10. The two sliders 11 are respectively fixedly connected to the lower surfaces of the corresponding first support plates 2. One end of the base 1 is fixedly connected to a motor 18. The output end of the motor 18 penetrates through one side of the base 1 and is fixedly connected to the output end of the first lead screw 10.

[0030] Start the motor 18 to rotate the first lead screw 10. Here, the first lead screw 10 is a bidirectional lead screw. Subsequently, the two sliders 11 drive the two first support plates 2 to approach or move away from each other respectively, so as to change the length of the first idler 22, enabling the device to adapt to belts of different widths.

[0031] Refer to Figures 1-3 , two second mounting plates 4 are fixedly connected to the upper surfaces of the two first support plates 2. A first rotating rod 5 is rotatably connected between the corresponding two second mounting plates 4. Second support plates 6 are fixedly sleeved on the rod walls of the two first rotating rods 5. A second idler 23 is arranged on one side of each of the two second support plates 6. Support columns 7 are fixedly connected to the upper surfaces of the two first support plates 2. Chute grooves are formed on the upper surfaces of the two support columns 7. Extrusion blocks 8 are slidably arranged inside the two chute grooves. Springs 9 are arranged at the lower ends of the two extrusion blocks 8. Second adjusting mechanisms are arranged at the lower ends of the two springs 9. The second adjusting mechanism includes two second rotating rods 12, two first bevel gears 13, two second bevel gears 14, two sleeves 15 and two second lead screws 16. Cavities are formed inside the two support columns 7. The two second rotating rods 12 are respectively rotatably connected to one side of the corresponding cavities. The two first bevel gears 13 are respectively fixedly sleeved on the rod walls at one ends of the corresponding second rotating rods 12. The two second lead screws 16 are respectively rotatably connected inside the corresponding chute grooves. The two sleeves 15 are respectively arranged at the lower ends of the corresponding springs 9 and are respectively threadedly sleeved on the rod walls of the corresponding second lead screws 16. The lower ends of the two second lead screws 16 respectively penetrate through the lower surfaces of the corresponding chute grooves and extend into the corresponding cavities. The two second bevel gears 14 are respectively fixedly sleeved on the rod walls at the lower ends of the corresponding second lead screws 16 and are respectively meshed with the corresponding first bevel gears 13. Knobs 19 are fixedly connected to one ends of the two second rotating rods 12.

[0032] When the pressure at both ends of the belt is too high, the two second support plates 6 respectively squeeze the corresponding extrusion blocks 8, and then each extrusion block 8 respectively squeezes the corresponding spring 9. At this time, each spring 9 can be used to buffer the pressure, so as to prevent the belt from being misaligned. Then, rotate the two knobs 19 to make the two second rotating rods 12 rotate. Subsequently, through the transmission of the two first bevel gears 13 and the two second bevel gears 14, the two second lead screws 16 can be rotated, and then drive the two sleeves 15 to respectively squeeze the corresponding springs 9, so that the two second support plates 6 require greater pressure to move.

[0033] Embodiment 2

[0034] On the basis of Embodiment 1, refer to Figures 1-2 , the first idler 22 includes a left idler and a right idler. One side of one end of the left idler is provided with a hexagonal slot, and one end of the right idler is fixedly connected with a hexagonal plug 17. The hexagonal plug 17 is inserted into the interior of the hexagonal slot.

[0035] By adjusting the distance between the left idler and the right idler, the length of the first idler 22 can be adjusted, so that the device can be adapted to belts of different sizes.

[0036] Embodiment 3

[0037] On the basis of Embodiment 1, refer to Figure 4 , torsion springs 20 are arranged on the rod walls at both ends of the first rotating rod 5. Both ends of each torsion spring 20 are respectively fixedly connected to the rod wall of the corresponding first rotating rod 5 and the side wall of the corresponding second mounting plate 4.

[0038] The torsion springs 20 can be used to keep the two second support plates in contact with the corresponding extrusion blocks 8 all the time.

[0039] Embodiment 4

[0040] On the basis of Embodiment 1, refer to Figures 2-3 , two limiting grooves are opened on the inner sides of the two chutes, and two limiting blocks 21 are slidably arranged in the two limiting grooves. The two limiting blocks 21 are respectively fixedly connected to the outer surfaces of the corresponding extrusion blocks 8. Each limiting block 21 can be used to prevent the two extrusion blocks 8 from moving out of the inner parts of the corresponding chutes at one end.

Claims

1. Telescopic floating idler bracket for belt conveyor, comprising a base (1), characterized in that, On the upper surface of the base (1), two first support plates (2) are slidably arranged. On the upper surfaces of the two first support plates (2), first mounting plates (3) are fixedly connected. A first idler roller (22) is jointly clamped between the two first mounting plates (3). A groove is formed on the upper surface of the base (1), and an adjusting mechanism is arranged inside the groove. The two first support plates (2) are moved through the first adjusting mechanism. On the upper surfaces of the two first support plates (2), two second mounting plates (4) are fixedly connected respectively. A first rotating rod (5) is rotatably connected between the corresponding two second mounting plates (4). On the rod walls of the two first rotating rods (5), second support plates (6) are fixedly sleeved respectively. On one side of each of the two second support plates (6), a second idler roller (23) is arranged. On the upper surfaces of the two first support plates (2), support columns (7) are fixedly connected respectively. On the upper surfaces of the two support columns (7), sliding grooves are formed. In the two sliding grooves, extrusion blocks (8) are slidably arranged respectively. Springs (9) are arranged at the lower ends of the two extrusion blocks (8). Second adjusting mechanisms are arranged at the lower ends of the two springs (9).

2. The telescopic floating idler bracket of the belt conveyor according to claim 1, characterized in that The first adjusting mechanism includes a first lead screw (10) and two sliders (11). The first lead screw (10) is rotatably connected inside the groove. The two sliders (11) are respectively threadedly sleeved on the rod walls at both ends of the first lead screw (10). The two sliders (11) are respectively fixedly connected to the lower surfaces of the corresponding first support plates (2).

3. The telescopic floating idler bracket of the belt conveyor according to claim 1, characterized in that, The second adjusting mechanism includes two second rotating rods (12), two first bevel gears (13), two second bevel gears (14), two sleeves (15) and two second lead screws (16). Cavities are formed inside the two support columns (7). The two second rotating rods (12) are respectively rotatably connected to one side of the corresponding cavities. The two first bevel gears (13) are respectively fixedly sleeved on the rod walls at one ends of the corresponding second rotating rods (12). The two second lead screws (16) are respectively rotatably connected inside the corresponding sliding grooves. The two sleeves (15) are respectively arranged at the lower ends of the corresponding springs (9) and are respectively threadedly sleeved on the rod walls of the corresponding second lead screws (16). The lower ends of the two second lead screws (16) respectively penetrate through the lower surfaces of the corresponding sliding grooves and extend into the corresponding cavities respectively. The two second bevel gears (14) are respectively fixedly sleeved on the rod walls at the lower ends of the corresponding second lead screws (16) and are respectively meshed with the corresponding first bevel gears (13).

4. The telescopic floating idler bracket of the belt conveyor according to claim 1, characterized in that, The first idler roller (22) includes a left idler roller and a right idler roller. A hexagonal slot is formed on one side at one end of the left idler roller. A hexagonal plug (17) is fixedly connected to one end of the right idler roller. The hexagonal plug (17) is inserted into the hexagonal slot.

5. The telescopic floating idler bracket of the belt conveyor according to claim 1, characterized in that, One end of the base (1) is fixedly connected with a motor (18). The output end of the motor (18) penetrates through one side of the base (1) and is fixedly connected to the output end of the first lead screw (10).

6. The telescopic floating idler bracket of the belt conveyor according to claim 3, characterized in that, Knobs (19) are fixedly connected to one ends of the two second rotating rods (12).

7. The telescopic floating idler bracket of the belt conveyor according to claim 1, characterized in that, Torsion springs (20) are provided on the rod walls at both ends of the first rotating rod (5).

8. The telescopic floating idler bracket of the belt conveyor according to claim 7, characterized in that, Both ends of each torsion spring (20) are fixedly connected to the rod wall of the corresponding first rotating rod (5) and the side wall of the corresponding second mounting plate (4).

9. The telescopic floating idler bracket of the belt conveyor according to claim 1, characterized in that, Two limiting grooves are formed in the inner sides of the two sliding grooves, and limiting blocks (21) are slidably arranged in the two limiting grooves. The two limiting blocks (21) are respectively fixedly connected to the outer surfaces of the corresponding extrusion blocks (8).

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