Tensioning device for conveyor driving roller

Abstract

The utility model relates to the technical field of transmission equipment, in particular to a tensioning device for a driving roller of a conveyor, which comprises a support frame, two first concave plates are symmetrically mounted on the top surface of the support frame, and a positioning slide bar is fixedly connected between opposite sides in the first concave plates. And two mounting seats are symmetrically and slidably connected to the outer wall of each positioning sliding rod, a transmission roller is rotatably connected between the two mounting seats located on the same side, a conveying belt is mounted between the two transmission rollers in a transmission mode, and a tensioning adjusting mechanism is mounted on the two first concave plates and used for adjusting the distance between the two transmission rollers. According to the tensioning device for the conveyor driving rollers, a hand wheel is rotated, a threaded rod rotates along with the hand wheel, two movable blocks are driven to move, the threaded rod is a two-way threaded rod, the two movable blocks move oppositely, a mounting base is further driven to move towards the outer side through a connecting rod, the distance between the two transmission rollers is increased, and the tensioning effect is improved. And the conveyor belt is tensioned after being loosened.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission equipment, in particular to a tensioning device for a conveyor driving roller. Background Art

[0002] The conveyor drive roller is an important part of the belt conveyor. Its function is to drive the conveyor belt to rotate through friction, thereby realizing the continuous transportation of materials. The drive roller is usually driven by an electric motor through a reducer, and has a large traction force and speed adjustment range to meet different transportation needs.

[0003] After the conveyor driving roller is used for a long time, the conveyor belt installed on the driving roller and the driven roller is prone to loosening. Since the positions of the conveyor driving roller and the driven roller are fixed, when the conveyor belt becomes loose, it cannot be adjusted, and further slippage occurs between the conveyor belt and the roller, affecting the conveying efficiency of the conveyor.

[0004] In order to solve the above problems, we have made improvements and proposed a tensioning device for a conveyor drive roller. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model provides a tensioning device for a conveyor driving roller, comprising a support frame, wherein two first concave plates are symmetrically installed on the top surface of the support frame, a positioning slide bar is fixedly connected between opposite inner sides of the first concave plates, two mounting seats are symmetrically slidably connected on the outer wall of each positioning slide bar, a transmission roller is rotatably connected between the two mounting seats located on the same side, a conveyor belt is transmission-installed between the two transmission rollers, and a tensioning adjustment mechanism is installed on the two first concave plates, and the tensioning adjustment mechanism is used to adjust the distance between the two transmission rollers.

[0007] As a preferred technical solution of the utility model, a driving motor is installed on the side of one of the mounting seats, and the output shaft of the driving motor is coaxially fixedly connected with the transmission roller.

[0008] As a preferred technical solution of the utility model, the tensioning adjustment mechanism includes two fixed columns, a threaded rod is rotatably connected between the two fixed columns, a movable block is symmetrically threadedly connected to the outer wall of the threaded rod, connecting rods are hinged on both sides of the movable block, the other end of the connecting rod is hinged to the side of the mounting seat, and the threaded rod, the movable block and the connecting rod are located inside the conveyor belt.

[0009] As a preferred technical solution of the utility model, the threaded rod is a bidirectional threaded rod, and one end of the threaded rod extending to the outside of the mounting seat is coaxially fixedly connected to a handwheel.

[0010] As a preferred technical solution of the utility model, the two fixing columns are respectively fixedly connected to the middle parts of the inner bottom surfaces of the two first concave plates, and the positioning slide rod passes through the fixing columns.

[0011] As a preferred technical solution of the utility model, a second concave plate is provided inside the conveyor belt, the inner bottom surface of the second concave plate contacts the inner bottom surface of the conveyor belt, and the second concave plate is fixedly connected to the top of the two fixed columns.

[0012] As a preferred technical solution of the utility model, a top surface of one of the fixing columns is threadedly connected with a locking bolt, and the locking bolt can tighten the threaded rod.

[0013] The beneficial effect of the utility model is that the tensioning device for the conveyor drive roller can release the threaded rod from the locking state by rotating the locking bolt. At this time, the hand wheel is rotated, and the threaded rod rotates accordingly, driving the two movable blocks to move. Since the threaded rod is a bidirectional threaded rod, the movement trend of the two movable blocks is to move in opposite directions. The mounting seat is further driven to move outward through the connecting rod, so that the distance between the two drive rollers becomes larger, thereby realizing the tensioning of the conveyor belt after relaxation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a three-dimensional schematic diagram of a tensioning device for a conveyor drive roller of the utility model;

[0016] Figure 2 It is a three-dimensional schematic diagram of a tensioning adjustment mechanism of a tensioning device for a conveyor drive roller of the utility model;

[0017] In the figure: 1, support frame; 2, first concave plate; 3, positioning slide rod; 4, mounting seat; 5, transmission roller; 6, conveyor belt; 7, driving motor; 8, fixed column; 9, threaded rod; 10, movable block; 11, connecting rod; 12, second concave plate. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0019] Example: Figure 1-Figure 2As shown, a tensioning device for a conveyor driving roller comprises a support frame 1, on the top surface of which two first concave plates 2 are symmetrically installed, a positioning slide bar 3 is fixedly connected between the opposite sides inside the first concave plates 2, two mounting seats 4 are symmetrically and slidably connected on the outer wall of each positioning slide bar 3, a transmission roller 5 is rotatably connected between the two mounting seats 4 located on the same side, a conveyor belt 6 is transmission-installed between the two transmission rollers 5, and a tensioning adjustment mechanism is installed on the two first concave plates 2, and the tensioning adjustment mechanism is used to adjust the distance between the two transmission rollers 5.

[0020] A driving motor 7 is installed on the side of one of the mounting seats 4. The output shaft of the driving motor 7 is coaxially fixedly connected to the transmission roller 5. The driving motor 7 is a reduction motor. By starting the driving motor 7, the transmission roller 5 can be driven to rotate.

[0021] The tensioning adjustment mechanism includes two fixed columns 8, a threaded rod 9 is rotatably connected between the two fixed columns 8, a movable block 10 is symmetrically threadedly connected to the outer wall of the threaded rod 9, connecting rods 11 are hinged on both sides of the movable block 10, and the other end of the connecting rod 11 is hinged to the side of the mounting seat 4, and the threaded rod 9, the movable block 10 and the connecting rod 11 are located inside the conveyor belt 6.

[0022] The threaded rod 9 is a bidirectional threaded rod, and the threaded rod 9 extends to the outside of the mounting seat 4 and is coaxially fixedly connected to a handwheel at one end. The threaded rod 9 is rotated by the handwheel. Since the threaded rod 9 is a bidirectional threaded rod, the movement tendency of the two movable blocks 10 is to move towards each other or away from each other, and the mounting seat 4 is further driven to move outward through the connecting rod 11.

[0023] The two fixing columns 8 are respectively fixedly connected to the middle parts of the inner bottom surfaces of the two first concave plates 2 , and the positioning slide rod 3 passes through the fixing columns 8 .

[0024] A second concave plate 12 is provided inside the conveyor belt 6. The inner bottom surface of the second concave plate 12 contacts the inner bottom surface of the conveyor belt 6, and the second concave plate 12 is fixedly connected to the tops of the two fixed columns 8. The second concave plate 12 can support the loaded conveyor belt 6. In order to further reduce the friction between the second concave plate 12 and the conveyor belt 6, a plurality of rollers can be rotatably arranged on the inner bottom surface of the second concave plate 12, and the rollers contact the inner bottom surface of the conveyor belt 6.

[0025] The top surface of one of the fixing columns 8 is threadedly connected with a locking bolt, which can press against the threaded rod 9. By rotating the locking bolt, the bottom end of the locking bolt presses against the outside of the threaded rod 9, and the threaded rod 9 cannot rotate at this time.

[0026] Working principle: Before using this tensioning device for the conveyor drive roller, first check whether it can be used normally. After the conveyor belt 6 and the drive roller 5 become loose, first turn the locking bolt to make the threaded rod 9 out of the locking state. At this time, turn the hand wheel, and the threaded rod 9 will rotate accordingly, driving the two movable blocks 10 to move. Since the threaded rod 9 is a bidirectional threaded rod, the movement trend of the two movable blocks 10 is to move in opposite directions. The mounting seat 4 is further driven to move outward through the connecting rod 11, so that the distance between the two drive rollers 5 becomes larger, so that the conveyor belt 6 is tensioned after relaxation, and then the locking bolt is turned to prevent the threaded rod 9 from rotating.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A tensioning device for a conveyor drive roller, comprising a support frame (1), characterized in that: Two first concave plates (2) are symmetrically mounted on the top surface of the support frame (1); a positioning slide bar (3) is fixedly connected between opposite sides of the first concave plates (2); two mounting seats (4) are symmetrically slidably connected on the outer wall of each positioning slide bar (3); a transmission roller (5) is rotatably connected between the two mounting seats (4) located on the same side; a conveyor belt (6) is installed between the two transmission rollers (5); a tensioning adjustment mechanism is installed on the two first concave plates (2); the tensioning adjustment mechanism is used to adjust the distance between the two transmission rollers (5); The tension adjustment mechanism comprises two fixed columns (8), a threaded rod (9) is rotatably connected between the two fixed columns (8), a movable block (10) is symmetrically threadedly connected to the outer wall of the threaded rod (9), connecting rods (11) are hinged on both sides of the movable block (10), and the other end of the connecting rod (11) is hinged to the side of the mounting seat (4), and the threaded rod (9), the movable block (10) and the connecting rod (11) are located inside the conveyor belt (6); The threaded rod (9) is a bidirectional threaded rod, and one end of the threaded rod (9) extending to the outside of the mounting seat (4) is coaxially fixedly connected to a hand wheel; The two fixing columns (8) are respectively fixedly connected to the middle of the inner bottom surfaces of the two first concave plates (2), and the positioning slide rod (3) passes through the fixing columns (8), wherein the top surface of one of the fixing columns (8) is threadedly connected with a locking bolt, and the locking bolt can be pressed against the threaded rod (9); A second concave plate (12) is provided inside the conveyor belt (6), the inner bottom surface of the second concave plate (12) contacts the inner bottom surface of the conveyor belt (6), and the second concave plate (12) is fixedly connected to the tops of the two fixing columns (8).

2. A tensioning device for a conveyor drive roller according to claim 1, characterized in that: A driving motor (7) is mounted on the side of one of the mounting seats (4), and the output shaft of the driving motor (7) is coaxially fixedly connected to the driving roller (5).

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