Novel spiral tensioning roller of conveyor

Abstract

The utility model relates to the technical field of conveyors, in particular to a novel conveyor spiral tensioning roller which comprises a roller body, a sliding support and a key, bearing seats are fixedly connected to the left portion and the right portion of the inner wall face of the roller body respectively, and self-aligning roller bearings are movably installed in the two bearing seats respectively. The outer side faces of the two bearing seats are each connected with two bearing covers in a clamped mode, a bearing is movably installed between the two bearing seats, oil seals are arranged on the outer surfaces and the inner wall faces of the two self-aligning roller bearings, and oil cups are arranged on the outer side faces of the two bearing seats. According to the novel spiral tensioning roller of the conveyor, the bearing is arranged in the roller body, the bearing end is not provided with a bearing seat any more, the sliding support is independently arranged, and the tensioning screw directly penetrates through the sliding support and the bearing end, so that the width size of the roller body is greatly reduced; the tension roller can be about 300mm shorter than a spiral tension roller of the same type on average.

Description

Technical Field

[0001] The utility model relates to the technical field of conveyors, in particular to a novel spiral tensioning roller for conveyors. Background Art

[0002] Common belt tensioning methods for belt conveyors include: spiral tensioning, vertical weight tensioning, car tensioning, hydraulic tensioning, etc. The spiral tensioning device is generally suitable for belt conveyors with a short conveyor length (generally less than 50m) or light materials, mobile conveyors, etc. It includes spiral tensioning rollers, tensioning brackets and other components, and uses the method of adjusting the screw stroke to tension the belt conveyor.

[0003] The existing conveyor spiral tensioning roller has a large overall weight and a wide width, and the corresponding belt conveyor bracket is also widened accordingly, resulting in a bulky structure and increased costs. Therefore, we have introduced a new type of conveyor spiral tensioning roller. Utility Model Content

[0004] The main purpose of the utility model is to provide a novel conveyor spiral tensioning roller, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A new type of conveyor spiral tensioning roller comprises a roller body, a sliding support and a key, the left inner wall surface and the right inner wall surface of the roller body are fixedly connected to bearing seats, spherical roller bearings are movably installed in the two bearing seats, two bearing covers are clamped on the outer side surfaces of the two bearing seats, a bearing is movably installed between the two bearing seats, oil seals are provided on the outer surfaces and inner wall surfaces of the two spherical roller bearings, and oil cups are provided on the outer side surfaces of the two bearing seats.

[0007] Preferably, two of the sliding supports and two of the keys are provided.

[0008] Preferably, the left end and the right end of the bearing are movably connected to the corresponding two sliding supports through two keys respectively.

[0009] Preferably, a circular hole with a keyway is opened in the middle of the sliding support and is installed in cooperation with the bearing.

[0010] Preferably, the left end and the right end of the bearing are both provided with T-shaped threaded holes to cooperate with the screw rod.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] Compared with the traditional type of spiral tensioning roller, the utility model eliminates the bearings and bearing seats outside the roller, integrates the bearings and bearing seats inside the roller body, opens T-shaped threaded holes at both ends of the bearing to connect with the screw, and opens holes in two directions of the sliding support to respectively insert the screw and cooperate with the bearing end, and opens upper and lower slide grooves to slide on the slider. The overall width of the spiral tensioning roller of this scheme is about 200mm to 400mm smaller than the width of the conventional roller, and the corresponding conveyor installation bracket width can also be reduced by about 200mm to 400mm, making the conveyor structure more compact and lightweight, and is particularly suitable for mobile belt conveyors. Since this type of conveyor needs to move frequently, the structural part needs to be as light as possible. The spiral tensioning roller of the utility model has more advantages than the conventional spiral tensioning roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a new type of conveyor spiral tensioning roller of the utility model;

[0014] Figure 2 It is a cross-sectional view of a sliding support of a new type of spiral tensioning roller of a conveyor according to the utility model;

[0015] Figure 3 This is a cross-sectional view of the end of a bearing of a spiral tensioning roller of a new type of conveyor according to the utility model;

[0016] Figure 4 This is a schematic diagram of the movement direction of a spiral tensioning roller of a new type of conveyor in the utility model.

[0017] In the figure: 1. drum body; 2. bearing cover; 3. bearing; 4. sliding support; 5. oil seal; 6. bearing seat; 7. oil cup; 8. spherical roller bearing; 9. key. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] See also Figure 1-4 , the utility model provides a technical solution:

[0022] A new type of conveyor spiral tensioning roller comprises a roller body 1, a sliding support 4 and a key 9. The left and right parts of the inner wall of the roller body 1 are fixedly connected with bearing seats 6. Self-aligning roller bearings 8 are movably installed in the two bearing seats 6. Two bearing covers 2 are clamped on the outer sides of the two bearing seats 6. A bearing 3 is movably installed between the two bearing seats 6. Oil seals 5 are provided on the outer surfaces and inner wall surfaces of the two self-aligning roller bearings 8. Oil cups 7 are provided on the outer sides of the two bearing seats 6.

[0023] In this embodiment, two sliding supports 4 and two keys 9 are provided; the left and right ends of the bearing 3 are movably connected to the corresponding two sliding supports 4 through two keys 9 respectively; a round hole with a keyway is opened in the middle of the sliding support 4 and is installed in cooperation with the bearing 3; the left and right ends of the bearing 3 are opened with T-shaped threaded holes to cooperate with the screw rod; by providing an oil cup 7, lubricating oil can be added externally at regular intervals to ensure smooth operation of the spherical roller bearing 8; the inner and outer sides of the spherical roller bearing 8 are sealed with an oil seal 5 to ensure that the inside of the spherical roller bearing 8 is not contaminated with dust, impurities, etc.

[0024] It should be noted that the utility model is a new type of spiral tensioning roller for conveyors. During use, when the roller body 1 is in operation, the sliding support 4 and the bearing 3 are fixed, and the bearing cover 2, the bearing seat 6 and the roller body 1 rotate with the outer ring of the spherical roller bearing 8. When the conveyor belt needs to be tensioned, the tensioning screw is rotated, and the bearing 3 drives the roller body 1 as a whole to make radial linear motion on the screw, and the sliding support 4 slides on the sliders of the upper and lower brackets; the bearing 3 and the bearing seat 6 are integrated inside the roller body 1, and T-shaped threaded holes are opened at both ends of the bearing 3 to connect with the screw, and the sliding support 4 Holes are opened in both directions and screws are inserted respectively and cooperate with bearing 3. Slide grooves are opened at the top and bottom to slide on the slider. The overall width of the spiral tensioning roller of this scheme is about 200mm to 400mm smaller than the width of the conventional roller. The corresponding conveyor installation bracket width can also be reduced by about 200mm to 400mm, making the conveyor structure more compact and lightweight. It is particularly suitable for mobile belt conveyors. Since this type of conveyor needs to move frequently, the structural part needs to be as light as possible. The spiral tensioning roller of the utility model has more advantages than the conventional spiral tensioning roller.

[0025] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A novel conveyor spiral tensioning roller, comprising a roller body (1), a sliding support (4) and a key (9), characterized in that: The left and right inner wall surfaces of the drum body (1) are fixedly connected with bearing seats (6), spherical roller bearings (8) are movably installed in the two bearing seats (6), two bearing covers (2) are clamped on the outer side surfaces of the two bearing seats (6), a bearing (3) is movably installed between the two bearing seats (6), the outer surfaces and inner wall surfaces of the two spherical roller bearings (8) are provided with oil seals (5), and the outer side surfaces of the two bearing seats (6) are provided with oil cups (7).

2. The novel conveyor spiral tensioning roller according to claim 1 is characterized in that: The sliding support (4) and the key (9) are both provided in two numbers.

3. The novel conveyor spiral tensioning roller according to claim 1 is characterized in that: The left end and the right end of the bearing (3) are movably connected to the corresponding two sliding supports (4) through two keys (9).

4. The novel conveyor spiral tensioning roller according to claim 1 is characterized in that: The sliding support (4) has a circular hole with a keyway in the middle and is mounted in cooperation with the bearing (3).

5. The novel conveyor spiral tensioning roller according to claim 1 is characterized in that: The left and right ends of the bearing (3) are both provided with T-shaped threaded holes for matching with the screw rod.

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