Tail wheel adjusting and sealing device of belt conveyor

Abstract

The utility model belongs to the technical field of belt conveyors, and particularly relates to a tail wheel adjusting and sealing device of a belt conveyor, which aims to solve the technical problem that conveyor belts with different widths cannot be adapted to, and comprises a mounting and fixing outer frame, an end plate I, an end plate II and a fixed mounting block, a second end plate is fixedly mounted at the other end of the mounting and fixing outer frame, a two-way threaded rotating rod is rotatably mounted between the second end plate and the first end plate, and the first sliding support drives the first rolling terminal and the first expansion roller to move at the same time, so that the first expansion roller slides relative to a tail wheel of the belt conveyor. The second sliding support drives the second rolling terminal and the second expansion roller to move, so that the second expansion roller relatively slides along the belt conveyor tail wheel, the using length of the belt conveyor tail wheel is changed, and the belt conveyor tail wheel can conveniently adapt to conveyor belts with different widths.

Description

Technical Field

[0001] The utility model belongs to the technical field of belt conveyors, and particularly relates to a tail wheel adjusting and sealing device for a belt conveyor. Background Technique

[0002] A belt conveyor adjusting device with the patent application number CN202321490404.4 includes a lead screw connected to a lead screw slider at the tail wheel of the belt conveyor. The lead screw is connected with a hydraulic motor through a coupling, and the hydraulic motor is automatically controlled through an electro-hydraulic control system. However, the disadvantage of this technical solution is that it cannot adapt to conveyor belts of different widths. Content of the Utility Model

[0003] The purpose of the utility model is to provide a tail wheel adjusting and sealing device for a belt conveyor to solve the technical problem that it cannot adapt to conveyor belts of different widths.

[0004] To achieve the above purpose, the specific technical solution of a tail wheel adjusting and sealing device for a belt conveyor of the utility model is as follows:

[0005] A belt conveyor tail wheel adjusting and sealing device, comprising a mounting and fixing outer frame, a first end plate, a second end plate, a fixed mounting block, a manual turntable, a bidirectional threaded rotating rod, a rotating limit ring, a first sliding bracket, a first rotating limit plate, a first rolling terminal, a belt conveyor tail wheel, a second rolling terminal, a second rotating limit plate, a second sliding bracket, a first positioning slot, a second positioning rod, a second positioning rod pushing spring, a second positioning slot, a first extension roller, a third positioning rod, a third positioning rod pushing spring, a third positioning slot, a second extension roller, a first positioning rod, a first positioning rod pushing spring. One end of the mounting and fixing outer frame is fixedly installed with the first end plate, and the other end of the mounting and fixing outer frame is fixedly installed with the second end plate. A bidirectional threaded rotating rod is rotatably installed between the second end plate and the first end plate and is rotationally limited by the rotating limit ring. A manual turntable is fixedly installed on the bidirectional threaded rotating rod. A fixed mounting block is fixedly installed on the second end plate. A first positioning rod is slidably installed in the fixed mounting block. A first positioning rod pushing spring is arranged between the first positioning rod and the fixed mounting block. A first positioning slot is formed on the manual turntable, and a plurality of first positioning slots are provided. A second sliding bracket is slidably installed on the mounting and fixing outer frame. A second rolling terminal is rotatably installed on the second sliding bracket and is rotationally limited by the second rotating limit plate. A second extension roller is fixedly installed on the second rolling terminal. The second extension roller is slidably installed on the belt conveyor tail wheel. A third positioning slot is formed on the belt conveyor tail wheel, and a plurality of third positioning slots are provided. A third positioning rod is slidably installed on the second extension roller. A third positioning rod pushing spring is arranged between the third positioning rod and the second extension roller. The third positioning rod is in mating connection with the third positioning slot. A first sliding bracket is slidably installed on the mounting and fixing outer frame. A first rolling terminal is rotatably installed on the first sliding bracket and is rotationally limited by the first rotating limit plate. A first extension roller is fixedly installed on the first rolling terminal and is slidably installed on the belt conveyor tail wheel. A second positioning slot is formed on the belt conveyor tail wheel, and a plurality of second positioning slots are provided. A second positioning rod is slidably installed on the first extension roller. A second positioning rod pushing spring is arranged between the second positioning rod and the first extension roller. The second positioning rod is in mating connection with the second positioning slot. The first sliding bracket and the second sliding bracket are simultaneously in threaded mating connection with the bidirectional threaded rotating rod.

[0006] Further, a plurality of the second positioning slots are linearly arrayed along the central axis of the belt conveyor tail wheel.

[0007] Further, a plurality of the third positioning slots are linearly arrayed along the central axis of the belt conveyor tail wheel.

[0008] Further, a plurality of the first positioning slots are circumferentially arrayed along the central axis of the manual turntable.

[0009] Further, two unidirectional threads with opposite helix directions are formed on the bidirectional threaded rotating rod.

[0010] Further, the first sliding bracket and the second sliding bracket are respectively disposed at positions with different helix directions of the threads on the bidirectional threaded rotating rod.

[0011] Further, the sliding contact surface between the second expansion roller and the tail wheel of the belt conveyor is sealed.

[0012] Further, the sliding contact surface between the first expansion roller and the tail wheel of the belt conveyor is sealed.

[0013] The advantages of the utility model are as follows:

[0014] During use, manually rotate the manual turntable, and then drive the bidirectional threaded rod to rotate through the manual turntable. Due to the threaded connection between the bidirectional threaded rod and the first sliding bracket and the second sliding bracket, the first sliding bracket and the second sliding bracket slide relative to the installation and fixing outer frame. The first sliding bracket drives the first rolling terminal and the first expansion roller to move simultaneously, so that the first expansion roller slides relative to the tail wheel of the belt conveyor. At the same time, the second sliding bracket drives the second rolling terminal and the second expansion roller to move, so that the second expansion roller slides relative to the tail wheel of the belt conveyor, thereby changing the use length of the tail wheel of the belt conveyor, and thus facilitating adaptation to conveyor belts of different widths. Description of the Drawings

[0015] Figure 1 is the overall structural schematic diagram of the utility model;

[0016] Figure 2 is Figure 1 the schematic diagram of the position of the cutting line of

[0017] Figure 3 is Figure 2 the sectional view along the A-A section;

[0018] Figure 4 is Figure 2 the sectional view along the B-B section;

[0019] Explanation of the marks in the figure: installation and fixing outer frame 1; first end plate 2; second end plate 3; fixed installation block 4; manual turntable 5; bidirectional threaded rod 6; rotation limit ring 7; first sliding bracket 8; first rotation limit plate 9; first rolling terminal 10; tail wheel of the belt conveyor 11; second rolling terminal 12; second rotation limit plate 13; second sliding bracket 14; first positioning slot 15; second positioning rod 16; second positioning rod push spring 17; second positioning slot 18; first expansion roller 19; third positioning rod 20; third positioning rod push spring 21; third positioning slot 22; second expansion roller 23; first positioning rod 24; first positioning rod push spring 25. Detailed Embodiment

[0020] The technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0021] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0022] Embodiment 1

[0023] As Figures 1-4As shown in the figure, a tail wheel adjustment and sealing device for a belt conveyor includes a fixed installation outer frame 1, a first end plate 2, a second end plate 3, a fixed installation block 4, a manual turntable 5, a double-threaded rotating rod 6, a rotating limit ring 7, a first sliding bracket 8, a first rotating limit plate 9, a first rolling terminal 10, a belt conveyor tail wheel 11, a second rolling terminal 12, a second rotating limit plate 13, a second sliding bracket 14, a first positioning card slot 15, a second positioning rod 16, a second positioning rod push spring 17, a second positioning card slot 18, a first expansion roller 19, a third positioning rod 20, a third positioning rod push spring 21, a third positioning card slot 22, a second expansion roller 23, a first positioning rod 24, and a first positioning rod push spring 25. One end of the fixed installation outer frame 1 is fixedly installed with the first end plate 2, and the other end of the fixed installation outer frame 1 is fixedly installed with the second end plate 3. A double-threaded rotating rod 6 is rotatably installed between the second end plate 3 and the first end plate 2 and is rotationally limited by the rotating limit ring 7. A manual turntable 5 is fixedly installed on the double-threaded rotating rod 6. A fixed installation block 4 is fixedly installed on the second end plate 3. A first positioning rod 24 is slidably installed in the fixed installation block 4. A first positioning rod push spring 25 is arranged between the first positioning rod 24 and the fixed installation block 4. A first positioning card slot 15 is opened on the manual turntable 5, and a plurality of first positioning card slots 15 are provided. A second sliding bracket 14 is slidably installed on the fixed installation outer frame 1. A second rolling terminal 12 is rotatably installed on the second sliding bracket 14 and is rotationally limited by the second rotating limit plate 13. A second expansion roller 23 is fixedly installed on the second rolling terminal 12. The second expansion roller 23 is slidably installed on the belt conveyor tail wheel 11. A third positioning card slot 22 is opened on the belt conveyor tail wheel 11, and a plurality of third positioning card slots 22 are provided. A third positioning rod 20 is slidably installed on the second expansion roller 23. A third positioning rod push spring 21 is arranged between the third positioning rod 20 and the second expansion roller 23. The third positioning rod 20 is connected in cooperation with the third positioning card slot 22. A first sliding bracket 8 is slidably installed on the fixed installation outer frame 1. A first rolling terminal 10 is rotatably installed on the first sliding bracket 8 and is rotationally limited by the first rotating limit plate 9. A first expansion roller 19 fixedly installed on the first rolling terminal 10 is slidably installed on the belt conveyor tail wheel 11. A second positioning card slot 18 is opened on the belt conveyor tail wheel 11, and a plurality of second positioning card slots 18 are provided. A second positioning rod 16 is slidably installed on the first expansion roller 19. A second positioning rod push spring 17 is arranged between the second positioning rod 16 and the first expansion roller 19. The second positioning rod 16 is connected in cooperation with the second positioning card slot 18. The first sliding bracket 8 and the second sliding bracket 14 are both in threaded connection with the double-threaded rotating rod 6. With such a setting, during use, manually rotate the manual turntable 5, and then drive the double-threaded rotating rod 6 to rotate through the manual turntable 5. Due to the threaded connection between the double-threaded rotating rod 6 and the first sliding bracket 8 and the second sliding bracket 14, the first sliding bracket 8 and the second sliding bracket 14 slide relative to the fixed installation outer frame 1. The first sliding bracket 8 drives the first rolling terminal 10 and the first expansion roller 19 to move simultaneously.Furthermore, the first extension roller 19 slides relative to the tail pulley 11 of the belt conveyor. At the same time, the second rolling terminal 12 and the second extension roller 23 are driven by the second sliding bracket 14 to move, so that the second extension roller 23 slides relative to the tail pulley 11 of the belt conveyor, thereby changing the use length of the tail pulley 11 of the belt conveyor, and facilitating the use of conveyor belts of different widths.

[0024] Embodiment 2

[0025] As Figures 1-4 shown, a plurality of the second positioning slots 18 are linearly arranged in an array along the central axis of the tail pulley 11 of the belt conveyor.

[0026] Among them, a plurality of the third positioning slots 22 are linearly arranged in an array along the central axis of the tail pulley 11 of the belt conveyor.

[0027] Among them, a plurality of the first positioning slots 15 are circumferentially arranged in an array along the central axis of the manual turntable 5.

[0028] Among them, two unidirectional threads with opposite helix directions are provided on the bidirectional threaded rod 6.

[0029] Among them, the first sliding bracket 8 and the second sliding bracket 14 are respectively placed at the positions of the threads with different helix directions on the bidirectional threaded rod 6.

[0030] Among them, the sliding contact surface between the second extension roller 23 and the tail pulley 11 of the belt conveyor is subjected to sealing treatment.

[0031] Among them, the sliding contact surface between the first extension roller 19 and the tail pulley 11 of the belt conveyor is subjected to sealing treatment.

[0032] It can be understood that the present utility model is described through some embodiments. As is known to those skilled in the art, without departing from the spirit and scope of the present utility model, various changes or equivalent replacements can be made to these features and embodiments. In addition, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the present utility model.

Claims

1. A tail wheel adjusting and sealing device for a belt conveyor, characterized in that, It includes an installation and fixation outer frame (1), a first end plate (2), a second end plate (3), a fixed installation block (4), a manual turntable (5), a bidirectional threaded rotating rod (6), a rotating limit ring (7), a first sliding bracket (8), a first rotating limit plate (9), a first rolling terminal (10), a tail pulley of a belt conveyor (11), a second rolling terminal (12), a second rotating limit plate (13), a second sliding bracket (14), a first positioning slot (15), a second positioning rod (16), a second positioning rod push spring (17), a second positioning slot (18), a first expansion roller (19), a third positioning rod (20), a third positioning rod push spring (21), a third positioning slot (22), a second expansion roller (23), a first positioning rod (24), a first positioning rod push spring (25). One end of the installation and fixation outer frame (1) is fixedly installed with the first end plate (2), and the other end of the installation and fixation outer frame (1) is fixedly installed with the second end plate (3). A bidirectional threaded rotating rod (6) is rotatably installed between the second end plate (3) and the first end plate (2) and is rotationally limited by the rotating limit ring (7). A manual turntable (5) is fixedly installed on the bidirectional threaded rotating rod (6). A fixed installation block (4) is fixedly installed on the second end plate (3). A first positioning rod (24) is slidably installed in the fixed installation block (4), and a first positioning rod push spring (25) is arranged between the first positioning rod (24) and the fixed installation block (4). The manual turntable (5) is provided with a first positioning slot (15), and a plurality of first positioning slots (15) are provided. A second sliding bracket (14) is slidably installed on the installation and fixation outer frame (1). A second rolling terminal (12) is rotatably installed on the second sliding bracket (14) and is rotationally limited by the second rotating limit plate (13). A second expansion roller (23) is fixedly installed on the second rolling terminal (12). The second expansion roller (23) is slidably installed on the tail pulley of the belt conveyor (11). The tail pulley of the belt conveyor (11) is provided with a third positioning slot (22), and a plurality of third positioning slots (22) are provided. A third positioning rod (20) is slidably installed on the second expansion roller (23), and a third positioning rod push spring (21) is arranged between the third positioning rod (20) and the second expansion roller (23). The third positioning rod (20) is connected in cooperation with the third positioning slot (22). A first sliding bracket (8) is slidably installed on the installation and fixation outer frame (1). A first rolling terminal (10) is rotatably installed on the first sliding bracket (8) and is rotationally limited by the first rotating limit plate (9). A first expansion roller (19) is fixedly installed on the first rolling terminal (10). The first expansion roller (19) is slidably installed on the tail pulley of the belt conveyor (11). The tail pulley of the belt conveyor (11) is provided with a second positioning slot (18), and a plurality of second positioning slots (18) are provided. A second positioning rod (16) is slidably installed on the first expansion roller (19), and a second positioning rod push spring (17) is arranged between the second positioning rod (16) and the first expansion roller (19). The second positioning rod (16) is connected in cooperation with the second positioning slot (18).The first sliding support (8) and the second sliding support (14) are simultaneously threadedly engaged with the bidirectional threaded rod (6).

2. The belt conveyor tail wheel adjusting and sealing device according to claim 1, characterized in that, A plurality of the second positioning card slots (18) are linearly arranged in an array along the central axis of the tail pulley (11) of the belt conveyor.

3. A tail wheel adjusting and sealing device for a belt conveyor according to claim 1, characterized in that, A plurality of the third positioning card slots (22) are linearly arranged in an array along the central axis of the tail pulley (11) of the belt conveyor.

4. A tail wheel adjusting and sealing device for a belt conveyor according to claim 1, characterized in that, A plurality of the first positioning card slots (15) are circumferentially arranged in an array along the central axis of the manual turntable (5).

5. The belt conveyor tail wheel adjusting and sealing device according to claim 1, characterized in that, Two single-threads with opposite helix directions are formed on the bidirectional threaded rotating rod (6).

6. The belt conveyor tail wheel adjusting and sealing device according to claim 5, characterized in that, The first sliding bracket (8) and the second sliding bracket (14) are respectively placed at the positions of the threads with different helix directions on the bidirectional threaded rotating rod (6).

7. A tail wheel adjusting and sealing device for a belt conveyor according to claim 1, characterized in that, The sliding contact surface between the second extension roller (23) and the tail pulley (11) of the belt conveyor is subjected to a sealing treatment.

8. A tail wheel adjusting and sealing device for a belt conveyor according to claim 1, characterized in that, The sliding contact surface between the first extension roller (19) and the tail pulley (11) of the belt conveyor is subjected to a sealing treatment.

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