Novel long belt conveyor tensioning device

Abstract

The utility model relates to the technical field of belt conveyors, and discloses a novel long belt conveyor tensioning device which comprises a carrier roller support and a driving roller support, a plurality of carrier rollers used for lifting a belt are arranged on the top of the carrier roller support at intervals, and a driving roller used for driving the belt to rotate is arranged on the driving roller support. And a tensioning mechanism for adjusting the tightness of the belt is arranged at the bottom of the carrier roller bracket. The tensioning mechanism is additionally arranged below the carrier roller support, when a belt of the long belt conveyor is tensioned and adjusted, the movable frame is moved only by rotating the adjusting screw rod, and due to the fact that the belt is arranged on the tensioning rollers on the fixed frame and the movable frame, the belt can be greatly adjusted only by moving the movable frame by a small stroke. Therefore, moving time is saved, large moving space does not need to be reserved, and occupied space is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of belt conveyors, in particular to a novel tensioning device for a long belt conveyor. Background Art

[0002] Long belt conveyor is a kind of equipment used for material transportation, usually composed of belt, driving device, tensioning device, supporting device, flexible guiding device, protective device and other components. It is widely used in coal, electric power, metallurgy, chemical industry, building materials, grain and other industries, and can transport various bulk, block and powder materials, and the conveying distance is often several kilometers or dozens of kilometers. Long belt conveyor has the characteristics of continuous conveying, large capacity, long transportation distance, low energy consumption and convenient maintenance. It is one of the important equipment indispensable for modern industrial production. Since the belt will loosen during long-term operation, a belt tensioning device is needed.

[0003] Most of the existing belt conveyor tensioning devices achieve belt tensioning adjustment by moving the distance between the driven roller and the active roller, such as an improved belt conveyor belt tensioning device with announcement number CN213201180U. However, for long belt conveyors, since the belt is long, the tensioning distance required is also large, resulting in the driven roller needing to move a large distance to adjust the belt tension, resulting in a long moving time and a large space occupied.

[0004] Therefore, we proposed a novel long belt conveyor tensioning device to solve the above-mentioned problems. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art in the above background technology, the purpose of the utility model is to provide a novel long belt conveyor tensioning device to solve the problems raised in the above background technology.

[0007] (II) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A novel long belt conveyor tensioning device comprises a roller support and an active roller support, wherein a plurality of rollers for lifting the belt are arranged at intervals on the top of the roller support, an active roller for driving the belt to rotate is arranged on the active roller support, and a tensioning mechanism for adjusting the tightness of the belt is arranged at the bottom of the roller support;

[0010] The tensioning mechanism includes a fixed frame fixed to the bottom of the roller bracket and a movable frame slidably installed at the bottom of the roller bracket. The fixed frame and the movable frame are both rotatably installed with tensioning rollers parallel to the active roller. An adjustment component for adjusting the distance between the movable frame and the fixed frame is provided between the movable frame and the fixed frame.

[0011] Furthermore, two of the fixed frames and two of the movable frames are provided, and the two fixed frames and the movable frame are arranged on both sides of the roller support relative to the center line of the roller support.

[0012] Furthermore, a T-shaped slide groove is arranged on the top of the roller bracket, and a T-shaped sliding block slidably connected to the T-shaped slide groove is fixed on the top of the movable frame.

[0013] Furthermore, the adjustment assembly includes an adjustment screw that passes through the movable frame and is rotatably connected to the fixed frame on the same side, and the adjustment screw is threadedly connected to the movable frame.

[0014] Preferably, a hand wheel is fixed to one end of the adjusting screw away from the fixing frame.

[0015] Preferably, a plurality of tensioning rollers are equidistantly arranged along the extending direction of the fixed frame and the movable frame.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] By adding a tensioning mechanism under the roller bracket, when adjusting the tension of the long belt conveyor, it is only necessary to move the movable frame by turning the adjusting screw. Since the belt is on the tensioning rollers on the fixed frame and the movable frame, the movable frame only needs to move a small stroke to make a larger adjustment to the belt, thereby saving moving time and no large moving space needs to be reserved, thereby saving occupied space. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of the new type of long belt conveyor tensioning device of the utility model;

[0020] Figure 2 It is a top view of a partial structural diagram of a new type of long belt conveyor tensioning device of the utility model;

[0021] Figure 3 The figure is an enlargement of the A position of the new long belt conveyor tensioning device of the utility model.

[0022] In the figure: roller bracket 1, active roller bracket 2, active roller 3, roller 4, tensioning mechanism 5, fixed frame 51, movable frame 52, tensioning roller 53, adjusting screw 54, hand wheel 55, T-shaped slide groove 56, T-shaped slide block 57. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-3 As shown, the utility model provides a novel long belt conveyor tensioning device, comprising a roller support 1, an active roller support 2, an active roller 3, an idler 4 and a tensioning mechanism 5, wherein a plurality of idlers 4 for lifting the belt are arranged at intervals on the top of the roller support 1, an active roller 3 for driving the belt to rotate is arranged on the active roller support 2, and a tensioning mechanism 5 for adjusting the tightness of the belt is arranged at the bottom of the roller support 1;

[0025] The specific tensioning mechanism 5 includes a fixed frame 51 and a movable frame 52. There are two fixed frames 51 and movable frames 52. The two fixed frames 51 and movable frames 52 are relatively arranged on both sides of the roller support 1 with respect to the center line of the roller support 1. The fixed frame 51 is fixedly installed at the bottom of the roller support 1. A T-shaped slide groove 56 is arranged on the top of the roller support 1. A T-shaped slider 57 slidably connected to the T-shaped slide groove 56 is fixed on the top of the movable frame 52. The movable frame 52 is slidably installed at the bottom of the roller support 1 through the T-shaped slide groove 56 and the T-shaped slider 57. The movable frame 52 is slidably installed at the bottom of the roller support 1 through the T-shaped slide groove 56 and the T-shaped slider 57. The fixed frame 51 and the movable frame 52 are both rotatably installed with a tensioning roller 53 parallel to the active roller 3. A plurality of tensioning rollers 53 are equidistantly arranged along the extension direction of the fixed frame 51 and the movable frame 52. An adjusting component for adjusting the spacing between the movable frame 52 and the fixed frame 51 is arranged between the movable frame 52 and the fixed frame 51, including an adjusting screw 54 that passes through the movable frame 52 and is rotatably connected to the fixed frame 51 on the same side. The adjusting screw 54 is threadedly connected to the movable frame 52.

[0026] When the belt is installed, it starts from the active roller 3, and is successively wound in an S shape around multiple tensioning rollers 53 on the fixed frame 51 and the movable frame 52, and then passes through multiple rollers and is fixed to the belt end of the active roller 3 to complete the winding. When the long belt conveyor is tensioned, the movable frame 52 is made to slide along the T-shaped slide groove 56 by rotating the adjusting screw 54. When the movable frame 52 slides, the distance between it and the fixed frame 51 changes to change the tension of the belt. Since the belt is wound in an S shape around multiple tensioning rollers 53 on the fixed frame 51 and the movable frame 52, the movable frame 52 only needs to move a small stroke to adjust the tension of the belt to a large extent, so as to save moving time. The number of tensioning rollers 53 can be increased or decreased to change the adjustment amount of the belt tension when the movable frame 52 moves.

[0027] As a preferred technical solution of the utility model: a hand wheel 55 is fixed to one end of the adjusting screw 54 away from the fixing frame 51 , and the hand wheel 55 is provided so that the staff can rotate the adjusting screw 54 .

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, it should be noted that, in the present invention, unless otherwise clearly specified and limited, the terms such as “set”, “install”, “connected”, “connected”, “fixed”, etc. should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can also be indirectly connected through an intermediate medium.

[0029] In the description of the present invention, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In this article, the meaning of "plurality" is two or more, unless otherwise clearly and specifically limited.

[0030] For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances; for technicians in this field, they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A novel long belt conveyor tensioning device, comprising a roller support (1) and a driving roller support (2), characterized in that: A plurality of rollers (4) for supporting the belt are arranged at intervals on the top of the roller support (1); an active roller (3) for driving the belt to rotate is arranged on the active roller support (2); and a tensioning mechanism (5) for adjusting the tightness of the belt is arranged at the bottom of the roller support (1); The tensioning mechanism (5) comprises a fixed frame (51) fixed to the bottom of the roller support (1) and a movable frame (52) slidably mounted on the bottom of the roller support (1); a tensioning roller (53) parallel to the active roller (3) is rotatably mounted on both the fixed frame (51) and the movable frame (52); an adjustment component for adjusting the distance between the movable frame (52) and the fixed frame (51) is provided between the movable frame (52) and the fixed frame (51).

2. A novel long belt conveyor tensioning device according to claim 1, characterized in that: Two fixed frames (51) and two movable frames (52) are provided, and the two fixed frames (51) and the movable frames (52) are arranged on both sides of the roller support (1) relative to the center line of the roller support (1).

3. A novel long belt conveyor tensioning device according to claim 2, characterized in that: A T-shaped slide groove (56) is arranged on the top of the roller support (1), and a T-shaped sliding block (57) slidably connected to the T-shaped slide groove (56) is fixed on the top of the movable frame (52).

4. A novel long belt conveyor tensioning device according to claim 3, characterized in that: The adjustment assembly comprises an adjustment screw (54) that passes through the movable frame (52) and is rotationally connected to the fixed frame (51) on the same side; the adjustment screw (54) is threadedly connected to the movable frame (52).

5. A novel long belt conveyor tensioning device according to claim 4, characterized in that: A hand wheel (55) is fixed to one end of the adjusting screw rod (54) away from the fixing frame (51).

6. A novel long belt conveyor tensioning device according to claim 5, characterized in that: A plurality of tension rollers (53) are arranged at equal distances along the extension direction of the fixed frame (51) and the movable frame (52).

Images