Riding wheel assembly of high-temperature rotary kiln

Abstract

The utility model relates to the technical field of rotary kilns, in particular to a high-temperature rotary kiln riding wheel assembly which comprises a base, an installation bottom plate is arranged at the top end of the base in a sliding mode through a linear driving piece, and a first riding wheel and a second riding wheel are rotationally installed on the two sides of the installation bottom plate through bearing seats. The two sets of first supporting wheels and the two sets of second supporting wheels are symmetrically located on the two sides of the lower portion of the rotary kiln barrel correspondingly, the first supporting wheels and the second supporting wheels are coaxially arranged, and the axial direction of the first supporting wheels and the axial direction of the second supporting wheels are parallel to the driving direction of the linear driving part. The linear driving part is used for driving the first supporting wheel and the second supporting wheel to alternately move to the position below a supporting ring on the outer circumferential wall of the rotary kiln barrel to provide support, and the first supporting wheel and the second supporting wheel are driven to alternately move to the position below the supporting ring to provide support for the rotary kiln barrel. Accelerated abrasion of the first riding wheel or the second riding wheel in a high-temperature environment is avoided, and meanwhile overhaul and maintenance are convenient when the first riding wheel or the second riding wheel is abraded.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary kilns, in particular to a supporting roller assembly for a high-temperature rotary kiln. Background Technique

[0002] Rotary kilns are widely used in various industries. For example, in many production industries such as building materials, metallurgy, chemical engineering, and environmental protection, rotary kilns are used to mechanically, physically, or chemically process solid materials. A rotary kiln dryer is generally used for drying solid materials. After the materials enter the interior of the cylinder body, a heat source is introduced into the jacket of the cylinder body to dry the internal materials. A driving mechanism for driving the rotation of the cylinder body is also provided on the rotary kiln dryer, so that the materials are fully in contact with the inner wall of the cylinder body for drying.

[0003] The supporting roller assembly of the high-temperature rotary kiln is installed on both sides of the bottom end of the rotary kiln cylinder body to provide support. The supporting rollers are connected to the cylinder body in a rolling manner to reduce wear. In the Chinese patent literature database, a patent with the application number 202022373580.2 discloses a supporting roller assembly for a rotary kiln, which includes a mounting base. An installation groove is formed on the upper surface of the mounting base. The installation groove extends along the length direction of the mounting base and penetrates through the mounting base. An inclined base is slidably arranged above the installation groove. Two groups of supporting roller sets for supporting the rotary kiln are slidably arranged on the upper surface of the inclined base along the length direction of the mounting base. During use, the inclination angle of the supporting rollers can be adjusted so that they are always parallel to the rotary kiln when they are in close contact with the bottom end of the rotary kiln, avoiding unilateral wear. However, during use, the supporting rollers are always in a high-temperature environment, which easily accelerates the wear of the supporting rollers and is not convenient for maintenance and repair when a failure occurs. Summary of the Invention

[0004] The purpose of the utility model is to provide a supporting roller assembly for a high-temperature rotary kiln to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A supporting roller assembly for a high-temperature rotary kiln, including a base. An installation base plate is slidably arranged at the top end of the base through a linear driving member. The first supporting roller and the second supporting roller are rotatably installed on both sides of the installation base plate through bearing seats. The two groups of the first supporting roller and the second supporting roller are symmetrically located on both sides below the rotary kiln cylinder body respectively. The first supporting roller and the second supporting roller are coaxially arranged, and the axial directions of the first supporting roller and the second supporting roller are parallel to the driving direction of the linear driving member. The linear driving member is used to drive the first supporting roller and the second supporting roller to alternately move below the supporting ring on the outer peripheral wall of the rotary kiln cylinder body to provide support.

[0006] Furthermore, the distance between the two first supporting rollers and the second supporting rollers is smaller than the width of the supporting ring.

[0007] Further, hinge plates are symmetrically fixed on both sides of the base. An articulated seat is arranged below the base. The hinge plates extend into the interior of the articulated seat and are rotatably connected to both sides of the articulated seat. A threaded column is fixed on the outer side of the hinge plate. Arc-shaped sliding holes for accommodating the threaded column to rotate along the rotating shaft of the hinge plate are arranged through both sides of the articulated seat. The threaded column passes through the arc-shaped sliding hole and extends to the outside of the articulated seat and is threadedly connected with a locking nut.

[0008] Further, a plurality of threaded columns are provided, and several threaded columns are arranged in a circumferential array with the rotating shaft of the hinge plate as the center.

[0009] Further, the linear driving member is horizontally installed above the mounting base plate through a support plate, and the output end of the linear driving member is fixedly connected to the mounting base plate through a mounting plate.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] By providing the mounting base plate, the linear driving member, the first supporting roller and the second supporting roller, the first supporting roller and the second supporting roller are driven to alternately move below the supporting ring to provide support for the rotary kiln cylinder, avoiding accelerated wear of the first supporting roller or the second supporting roller continuously in a high-temperature environment. At the same time, it is also convenient for maintenance when the first supporting roller or the second supporting roller is worn.

[0012] By providing the articulated seat, the threaded column and the locking nut, it is convenient to adjust the angles of the first supporting roller and the second supporting roller, so that the axial directions of the first supporting roller and the second supporting roller are always parallel to the axial direction of the rotary kiln cylinder, avoiding unilateral wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic three-dimensional structure diagram of the present utility model;

[0014] Figure 2 is an exploded view of the present utility model;

[0015] Figure 3 is a schematic structural diagram of the present utility model in an assembled state.

[0016] In the figure: 1, base; 101, hinge plate; 2, mounting base plate; 3, linear driving member; 4, first supporting roller; 5, second supporting roller; 6, bearing seat; 7, articulated seat; 701, arc-shaped sliding hole; 8, threaded column; 9, locking nut; 10, rotary kiln cylinder; 1001, supporting ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. In the description of the present utility model, it should be noted that the descriptions of terms such as "first", "second", etc. are only for descriptive purposes, and do not particularly refer to the meaning of order or sequence, nor are they used to limit the present utility model. They are merely used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. For the terms "include" and any variations thereof in the specification, claims and above-mentioned drawings of the present utility model, the intention is to cover non-exclusive inclusion.

[0018] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "install", "connect", "link", "set" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. In addition, in the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and 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 thus cannot be understood as a limitation to the present utility model.

[0019] In the prior art, the rotary kiln supporting rollers are generally installed in pairs below the rotary kiln cylinder 10. A support ring 1001 is coaxially fixed on the outer peripheral wall of the rotary kiln cylinder 10. During operation, the driving device drives the rotary kiln cylinder 10 to rotate, and the support ring 1001 is in rolling connection with the supporting rollers to reduce wear.

[0020] Please refer to Figures 1 - 3, an embodiment provided by the present utility model: a high-temperature rotary kiln supporting roller assembly, comprising a base 1, on the top of the base 1, there is a slidingly arranged mounting base plate 2 through a linear driving member 3. The linear driving member 3 drives the mounting base plate 2 to move back and forth along the length direction of the base 1. On both sides in the width direction of the mounting base plate 2, there are respectively rotatably mounted a first supporting roller 4 and a second supporting roller 5 through bearing seats 6. In this embodiment, three bearing seats 6 are mounted on each side of the mounting base plate 2, two are located on the axial two sides of the first supporting roller 4 and the second supporting roller 5, and one is located in the middle of the first supporting roller 4 and the second supporting roller 5. Two groups of the first supporting roller 4 and the second supporting roller 5 are symmetrically located on both sides below the rotary kiln cylinder 10. The first supporting roller 4 and the second supporting roller 5 are coaxially arranged, and the axial direction of the first supporting roller 4 and the second supporting roller 5 is parallel to the driving direction of the linear driving member 3. The linear driving member 3 is used to drive the first supporting roller 4 and the second supporting roller 5 to alternately move below the support ring 1001 on the outer peripheral wall of the rotary kiln cylinder 10 to provide support. The distance between the two first supporting rollers 4 and the second supporting rollers 5 is less than the width of the support ring 1001, which can always provide support for the rotary kiln cylinder 10. The first supporting roller 4 and the second supporting roller 5 alternately move below the support ring 1001 to provide support for the rotary kiln cylinder 10, avoiding the first supporting roller 4 or the second supporting roller 5 continuously being in a high-temperature environment and accelerating wear. At the same time, it is also convenient for maintenance when the first supporting roller 4 or the second supporting roller 5 is worn.

[0021] The linear driving member 3 is horizontally mounted above the mounting base plate 2 through a support plate, and the output end of the linear driving member 3 is fixedly connected to the mounting base plate 2 through a mounting plate. The linear driving member 3 can specifically be any one of an oil cylinder, a cylinder, etc. Through the expansion and contraction of the linear driving member 3, it drives the mounting base plate 2 to move back and forth on the top of the base 1, and then drives the back-and-forth movement of the first supporting roller 4 and the second supporting roller 5. Further, the mounting base plate 2 can be slidably connected to the base 1 through a slide rail to improve its stability.

[0022] Furthermore, since the rotary kiln cylinder 10 is generally inclined, in this embodiment, hinge plates 101 are symmetrically fixed on both sides of the base 1. An articulated seat 7 is arranged below the base 1. The hinge plates 101 extend into the interior of the articulated seat 7 and are rotatably connected to both sides of the articulated seat 7. A threaded column 8 is fixed on the outer side of the hinge plate 101. Arc-shaped sliding holes 701 for accommodating the threaded column 8 to rotate along the rotating shaft of the hinge plate 101 are penetrated through both sides of the articulated seat 7. The threaded column 8 passes through the arc-shaped sliding hole 701 and extends to the outside of the articulated seat 7 and is threadedly connected with a locking nut 9. The hinge plate 101 rotates inside the articulated seat 7, and the threaded column 8 slides inside the arc-shaped sliding hole 701 to adjust the angles of the first supporting roller 4 and the second supporting roller 5, so that the axes of the first supporting roller 4 and the second supporting roller 5 are parallel to the axis of the rotary kiln cylinder 10. The threaded column 8 and the locking nut 9 are used to fix the hinge plate 101. The bearing seat 6 is specifically installed and fixed to the base 1 through bolts. Further, in order to ensure that the first supporting roller 4 or the second supporting roller 5 is always in close contact with the support ring 1001, a number of mounting holes can be provided on the base 1 to facilitate adjusting the position of the bearing seat 6, and then adjusting the positions of the first supporting roller 4 and the second supporting roller 5.

[0023] In this embodiment, a plurality of threaded columns 8 are provided. Specifically, two threaded columns 8 are provided on each hinge plate 101, and the two threaded columns 8 are arranged in a circumferential array with the rotating shaft of the hinge plate 101 as the center, which improves the stability of the base 1 during fixation.

[0024] Working principle: During operation, the telescopic drive of the linear drive member 3 drives the mounting base plate 2 to slide back and forth on the top of the base 1, so that the first supporting roller 4 and the second supporting roller 5 alternately move below the support ring 1001 to provide support for the rotary kiln cylinder 10. At the same time, the first supporting rollers 4 on both sides or the second supporting rollers 5 on both sides are in rolling connection with the support ring 1001 to reduce wear. Loosen the locking nut 9 to make the hinge plate 101 rotate inside the articulated seat 7, and the threaded column 8 slide inside the arc-shaped sliding hole 701 to adjust the angles of the first supporting roller 4 and the second supporting roller 5, so that the axes of the first supporting roller 4 and the second supporting roller 5 are parallel to the axis of the rotary kiln cylinder 10. After adjusting the position, tighten the locking nut 9 to fix the base 1 and avoid unilateral wear.

[0025] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A high temperature rotary kiln support wheel assembly, comprising a base (1), characterized in that: A mounting base plate (2) is slidably arranged at the top of the base (1) via a linear drive member (3), and a first supporting wheel (4) and a second supporting wheel (5) are rotatably arranged on both sides of the mounting base plate (2) via a bearing seat (6), and two groups of the first supporting wheels (4) and the second supporting wheels (5) are symmetrically located on both sides below the rotary kiln cylinder (10), respectively, and the first supporting wheel (4) and the second supporting wheel (5) are coaxially arranged, and the axial directions of the first supporting wheel (4) and the second supporting wheel (5) are parallel to the driving direction of the linear drive member (3), and the linear drive member (3) is used to drive the first supporting wheel (4) and the second supporting wheel (5) to alternately move to the bottom of the support ring (1001) on the outer peripheral wall of the rotary kiln cylinder (10) to provide support.

2. The high temperature rotary kiln support wheel assembly according to claim 1, characterized in that: The distance between the first supporting wheels (4) and the second supporting wheels (5) is smaller than the width of the support ring (1001).

3. The high temperature rotary kiln supporting wheel assembly according to claim 1, characterized in that: Hinge plates (101) are symmetrically fixed on both sides of the base (1); a hinge seat (7) is arranged below the base (1); the hinge plate (101) extends to the inside of the hinge seat (7) and is rotatably connected to both sides of the hinge seat (7); a threaded column (8) is fixed to the outside of the hinge plate (101); arc-shaped sliding holes (701) are provided on both sides of the hinge seat (7) to accommodate the threaded column (8) rotating along the rotating axis of the hinge plate (101); the threaded column (8) passes through the arc-shaped sliding hole (701) to extend to the outside of the hinge seat (7) and is threadedly connected to a locking nut (9).

4. The high temperature rotary kiln support wheel assembly according to claim 3, characterized in that: A plurality of the threaded columns (8) are provided, and the plurality of threaded columns (8) are arranged in a circular array with the rotation axis of the hinged plate (101) as the center.

5. The high temperature rotary kiln supporting wheel assembly according to claim 1, characterized in that: The linear drive component (3) is horizontally mounted above the mounting base plate (2) via a support plate, and the output end of the linear drive component (3) is fixedly connected to the mounting base plate (2) via the mounting plate.

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