CN211233881U - Rotary kiln barrel and wheel belt connecting structure - Google Patents
Rotary kiln barrel and wheel belt connecting structure Download PDFInfo
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- CN211233881U CN211233881U CN201921930711.3U CN201921930711U CN211233881U CN 211233881 U CN211233881 U CN 211233881U CN 201921930711 U CN201921930711 U CN 201921930711U CN 211233881 U CN211233881 U CN 211233881U
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- rotary kiln
- sizing block
- belt
- kiln cylinder
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Abstract
A connecting structure of a rotary kiln cylinder and a wheel belt is characterized in that a wheel belt sizing block is additionally arranged on a wheel belt sizing block which is used for supporting and connecting the rotary kiln cylinder and the wheel belt, and elastic deformation of the sizing block elastic support is utilized to eliminate a connecting gap between the rotary kiln cylinder and the wheel belt and improve axial deformation of the rotary kiln cylinder; when the rotary kiln cylinder expands under heating, the elastic deformation of the cushion iron elastic support is utilized to absorb the thermal expansion of the rotary kiln cylinder, so that the rotary kiln cylinder is prevented from generating overlarge necking and generating serious radial deformation; the utility model discloses a rotary kiln barrel has thoroughly solved the joint clearance design difficult problem between rotary kiln barrel and wheel area with wheel area connection structure, improves axial deformation and radial deformation in the rotary kiln working process, has improved rotary kiln life, has reduced the manufacturing cost of enterprise.
Description
Technical Field
The utility model relates to a rotary kiln barrel structural design technical field, concretely relates to rotary kiln barrel and tyre connection structure.
Background
The reasonable design of the connecting gap between the rotary kiln cylinder and the wheel band sizing block is always a key and difficult problem in the design of rotary kiln equipment; if the connecting gap is too large, the axial deformation of the rotary kiln cylinder is too large, the stress of a welding seam between the wheel belt sizing block and the rotary kiln cylinder is increased, the rotary kiln cylinder is broken, the service life of a refractory brick inlaid in the rotary kiln cylinder is shortened, meanwhile, the relative sliding between the wheel belt and the wheel belt sizing block is increased, the abrasion of the wheel belt and the wheel belt sizing block is aggravated, and the service life is shortened; if the connection gap is too small, after the rotary kiln cylinder is heated and expanded, the wheel belt sizing block and the wheel belt generate interference, so that the rotary kiln cylinder generates necking, the rotary kiln cylinder generates serious radial deformation, and serious accidents of loosening, arrangement distortion and breakage of refractory bricks inlaid in the rotary kiln cylinder and even falling of the refractory bricks are caused; therefore, how to reasonably design the connecting gap between the rotary kiln cylinder and the wheel band sizing block is a technical problem to be solved by the structural design letter of the rotary kiln cylinder.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the background art, the utility model discloses a rotary kiln cylinder and wheel belt connecting structure, wherein a sizing block elastic support is added on a wheel belt sizing block which supports and connects a rotary kiln cylinder and a wheel belt, and the elastic deformation of the sizing block elastic support is utilized to eliminate the connecting gap between the rotary kiln cylinder and the wheel belt and improve the deformation of the rotary kiln cylinder in the axial direction; after the rotary kiln cylinder body is heated and expanded, the elastic deformation of the cushion iron elastic support is utilized to absorb the heated expansion of the rotary kiln cylinder body, so that the rotary kiln cylinder body is prevented from generating overlarge necking to cause serious radial deformation.
In order to realize the utility model aims at, the utility model adopts the following technical scheme: a rotary kiln cylinder and wheel belt connecting structure comprises a rotary kiln cylinder, a wheel belt sizing block and a wheel belt; the two groups of wheel belt sizing blocks are arranged along the axial direction of the rotary kiln cylinder body, a set interval is arranged between the two groups of wheel belt sizing blocks, and each group of wheel belt sizing blocks are uniformly distributed along the outer circumferential surface of the rotary kiln cylinder body; the belt pulleys are arranged on the outer enveloping surface of the cushion iron elastic support of the two groups of belt pulley cushion irons.
Further, the belt sizing block comprises a sizing block base plate and a sizing block elastic support; the sizing block base plate is in an arc plate shape, the inner arc surface of the sizing block base plate is matched with the outer circumferential surface of the rotary kiln cylinder body, and the sizing block base plate is fixedly connected to the outer circumferential surface of the rotary kiln cylinder body; the upper part of the sizing block elastic support is provided with an arc-shaped elastic plate, when the arc-shaped elastic plate receives pressure, the arc-shaped elastic plate can be elastically deformed, and the height of the arc-shaped elastic plate is reduced, so that when the rotary kiln cylinder is heated and expanded in the working process, the arc-shaped elastic plate elastically supported by the sizing block can be elastically deformed, the expansion of the rotary kiln cylinder is absorbed, and the phenomenon of necking deformation of the rotary kiln cylinder is prevented; the lower part of the sizing block elastic support is provided with two supporting legs, and the sizing block elastic support is fixedly connected to the outer arc surface of the sizing block base plate through the two supporting legs.
Furthermore, the belt pulley is circular, a belt pulley limiting ring is arranged in the middle of the inner ring surface of the belt pulley, and the belt pulley limiting ring is arranged in the interval between the two groups of belt pulley sizing blocks to prevent the belt pulley from moving along the axis of the rotary kiln cylinder; a gap is formed between the inner ring surface of the belt limiting ring and the outer circumferential surface of the rotary kiln barrel, so that the rotary kiln barrel is prevented from contacting with the inner ring surface of the belt limiting ring after being heated and expanded in the working process, and the rotary kiln barrel is prevented from necking and deforming.
Further, a lower stud is fixedly arranged on the outer arc surface of the sizing block substrate; an upper stud is arranged on the inner side surface of the arc-shaped elastic plate elastically supported by the sizing block; the upper stud and the lower stud are coaxially arranged, and the thread turning directions of the upper stud and the lower stud are opposite.
Furthermore, a bidirectional nut is arranged between the upper stud and the lower stud, and two ends of the bidirectional nut are provided with internal threads with opposite rotation directions; before the belt wheel is installed, the sizing block elastic support is subjected to predeformation through the lower stud, the upper stud and the bidirectional nut, so that the height of an arc-shaped elastic plate at the upper part of the sizing block elastic support is reduced, and the belt wheel is convenient to install; after the belt wheel is installed, the bidirectional nut is rotated, the elastic support of the sizing block is released to deform in advance, the arc-shaped elastic plate on the upper portion of the elastic support of the sizing block is in contact with the inner ring surface of the belt wheel, pre-pressure is applied, and the gap between the belt wheel and the sizing block of the belt wheel is eliminated.
Furthermore, the sizing block elastic support is connected with the sizing block base plate through welding.
Further, the sizing block substrate is connected with the lower stud through welding; the sizing block elastic support is connected with the upper stud in a welding mode.
Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has: the utility model discloses a rotary kiln cylinder and wheel belt connecting structure, which adds a sizing block elastic support on a wheel belt sizing block for supporting and connecting the rotary kiln cylinder and the wheel belt, eliminates the connecting gap between the rotary kiln cylinder and the wheel belt by utilizing the elastic deformation of the sizing block elastic support, and improves the deformation of the rotary kiln cylinder in the axial direction; after the rotary kiln cylinder body is heated and expanded, the elastic deformation of the cushion iron elastic support is utilized to absorb the heated expansion of the rotary kiln cylinder body, so that the rotary kiln cylinder body is prevented from generating overlarge necking to cause serious radial deformation; the utility model discloses a rotary kiln barrel has thoroughly solved the joint clearance design problem between rotary kiln barrel and wheel area with wheel area connection structure, improves rotary kiln axial deformation and radial deformation, has improved rotary kiln life, has reduced the manufacturing cost of enterprise.
Drawings
FIG. 1 is an appearance schematic view of a rotary kiln cylinder and belt wheel connection structure;
FIG. 2 is a partial sectional view of a rotary kiln cylinder and belt connection structure;
FIG. 3 is a schematic view of the appearance of a rim iron;
FIG. 4 is a schematic exterior view of the belt;
FIG. 5 is a schematic view of the connection state of the lower stud, the upper stud and the two-way nut with the sizing blocks.
In the figure: 1. a rotary kiln cylinder; 2. a wheel belt sizing block; 2.1, a sizing block substrate; 2.2, supporting by using a sizing block in an elastic manner; 2.3, a lower stud; 2.4, mounting a stud; 2.5, a bidirectional nut; 3. a belt wheel; 3.1, a wheel belt limiting ring.
Detailed Description
The invention will be explained in more detail by the following examples, which disclose the invention and are intended to protect all technical improvements within the scope of the invention.
A rotary kiln cylinder and wheel belt connecting structure comprises a rotary kiln cylinder 1, a wheel belt sizing block 2 and a wheel belt 3; the belt wheel sizing block 2 comprises a sizing block base plate 2.1 and a sizing block elastic support 2.2; the sizing block base plate 2.1 is in the shape of an arc plate, the inner arc surface of the sizing block base plate is matched with the outer circumferential surface of the rotary kiln cylinder 1 and is fixedly connected to the outer circumferential surface of the rotary kiln cylinder 1; the upper part of the sizing block elastic support 2.2 is an arc-shaped elastic plate, the lower part of the sizing block elastic support is provided with two supporting legs, and the sizing block elastic support 2.2 is fixedly connected to the outer arc surface of the sizing block base plate 2.1 through the two supporting legs; the two groups of wheel belt sizing blocks 2 are arranged along the axis of the rotary kiln cylinder 1, a spacing distance is arranged between the two groups of wheel belt sizing blocks 2, and each group of wheel belt sizing blocks 2 are uniformly distributed along the outer circumferential surface; the belt pulley 3 is annular, the middle part of the inner annular surface of the belt pulley is provided with a belt pulley limiting ring 3.1, the width of the belt pulley limiting ring is equal to the interval between the two groups of belt pulley sizing blocks 2, and the belt pulley limiting ring 3.1 is arranged in the interval between the two groups of belt pulley sizing blocks 2; a gap is arranged between the inner ring surface of the wheel belt limiting ring 3.1 and the outer circumferential surface of the rotary kiln barrel 1, and the inner ring surface of the wheel belt 3 is arranged on the outer envelope surface of the sizing block elastic support 2.2 of the two groups of wheel belt sizing blocks 2 and is in prepressing contact with the arc elastic plate of the sizing block elastic support 2.2.
A lower stud 2.3 is welded on the outer arc surface of the sizing block substrate 2.1, and the lower stud 2.3 is a right-hand thread; an upper stud 2.4 is welded on the inner side surface of the arc-shaped elastic plate of the sizing block elastic support 2.2, the upper stud 2.4 is a left-hand thread, and the upper stud 2.4 and the lower stud 2.3 are coaxially arranged; a bidirectional nut 2.5 is arranged between the upper stud 2.4 and the lower stud 2.3, and two ends of the bidirectional nut 2.5 are provided with internal threads with opposite rotation directions; before the belt pulley 3 is installed, the bidirectional nut 2.5 arranged between the lower stud 2.3 and the upper stud 2.4 rotates clockwise for 2.5, and applies pre-deformation to the sizing block elastic support 2.2, so that the total height of the belt pulley sizing block 2 is reduced, and the belt pulley 3 is convenient to install; after the belt pulley 3 is installed, the bidirectional nut 2.5 is rotated anticlockwise, part of the sizing block elastic support 2.2 is released to be pre-deformed, and the bidirectional nut 2.5 is taken out; the arc-shaped elastic plate of the sizing block elastic support 2.2 is in pre-pressing contact with the inner ring surface of the belt pulley 3, and the gap between the belt pulley 3 and the belt pulley sizing block 2 is eliminated.
The method of pre-deforming the shim spring support 2.2 prior to installation of the rim shim 2 is described in detail below: after the wheel belt sizing block 2 is processed, the sizing block elastic support 2.2 is gradually pre-deformed through a tool, in the process, the bidirectional nut 2.5 is arranged between the lower stud 2.3 and the upper stud 2.4, the bidirectional nut 2.5 is rotated clockwise to connect the bidirectional nut 2.5 with the lower stud 2.3 and the upper stud 2.4, and then the bidirectional nut 2.5 is continuously rotated clockwise until the pre-deformation of the sizing block elastic support 2.2 meets the design requirement.
The following specifically describes the method of mounting the rim iron 2 and the rim 3: firstly, a group of rim sizing blocks 2 are welded and fixed on the outer circumference of a rotary kiln cylinder 1 according to the designed position, then a rim 3 is arranged on the outer circumference of the rotary kiln cylinder 1, and one side surface of a rim limiting ring 3.1 is in contact with the side surface of a sizing block elastic support 2.2 of the group of rim sizing blocks 2; then, welding and fixing the other group of wheel band sizing blocks 2 on the outer circumference of the rotary kiln barrel body 1 according to the designed position; after the wheel belt sizing block 2 is welded and fixed completely, the bidirectional nuts 2.5 of all the wheel belt sizing blocks 2 are rotated anticlockwise and detached, and part of the sizing block elastic supports 2.2 are released, so that the sizing block elastic supports 2.2 are in pre-pressing contact with the inner annular surface of the wheel belt 3.
When the rotary kiln barrel 1 is heated in the working process to generate radial expansion deformation, the rim strip sizing block 2 is driven to move radially, the pressure between the inner annular surface of the rim strip 3 and the rim strip elastic support 2.2 is increased, the rim strip elastic support 2.2 generates elastic deformation, and the radial expansion deformation generated by heating the rotary kiln barrel 1 is absorbed.
The part of the utility model not detailed is prior art.
Claims (7)
1. A rotary kiln barrel and wheel belt connecting structure is characterized in that: comprises a rotary kiln cylinder body (1), a belt wheel sizing block (2) and a belt wheel (3); two groups of wheel belt sizing blocks (2) are arranged along the axial direction of the rotary kiln cylinder (1), a set distance is arranged between the two groups of wheel belt sizing blocks (2), and each group of wheel belt sizing blocks (2) are uniformly distributed along the outer circumferential surface of the rotary kiln cylinder; the belt pulleys (3) are arranged on the outer enveloping surfaces of the two groups of belt pulley sizing blocks (2).
2. The rotary kiln cylinder and belt wheel connecting structure as claimed in claim 1, wherein: the belt wheel sizing block (2) comprises a sizing block base plate (2.1) and a sizing block elastic support (2.2); the sizing block substrate (2.1) is in the shape of an arc plate, the inner arc surface of the sizing block substrate is matched with the outer circumferential surface of the rotary kiln cylinder (1) and is fixedly connected to the outer circumferential surface of the rotary kiln cylinder (1); the upper part of the sizing block elastic support (2.2) is an arc-shaped elastic plate, the lower part of the sizing block elastic support is provided with two supporting legs, and the sizing block elastic support (2.2) is fixedly connected to the outer arc surface of the sizing block base plate (2.1) through the two supporting legs.
3. The rotary kiln cylinder and belt wheel connecting structure as claimed in claim 1, wherein: the belt pulley (3) is annular, the middle part of the inner annular surface of the belt pulley is provided with a belt pulley limiting ring (3.1), and the belt pulley limiting ring (3.1) is arranged in the interval between the two groups of belt pulley sizing blocks (2); a gap is arranged between the inner ring surface of the wheel belt limiting ring (3.1) and the outer circumference surface of the rotary kiln cylinder body (1).
4. The rotary kiln cylinder and wheel belt connecting structure as claimed in claim 2, wherein: a lower stud (2.3) is fixedly arranged on the outer arc surface of the sizing block substrate (2.1); an upper stud (2.4) is arranged on the inner side surface of the arc-shaped elastic plate of the sizing block elastic support (2.2); the upper stud (2.4) and the lower stud (2.3) are coaxially arranged, and the thread turning directions of the upper stud (2.4) and the lower stud (2.3) are opposite.
5. The rotary kiln cylinder and belt wheel connection structure as claimed in claim 4, wherein: a bidirectional nut (2.5) is arranged between the upper stud (2.4) and the lower stud (2.3), and two ends of the bidirectional nut (2.5) are provided with internal threads with opposite rotation directions; before the belt pulley (3) is installed, the sizing block elastic support (2.2) is subjected to predeformation through the lower stud (2.3), the upper stud (2.4) and the bidirectional nut (2.5); after the belt pulley (3) is installed, the bidirectional nut (2.5) is rotated, and the elastic support (2.2) of the sizing block is released from predeformation.
6. The rotary kiln cylinder and wheel belt connecting structure as claimed in claim 2, wherein: the sizing block elastic support (2.2) is connected with the sizing block base plate (2.1) through welding.
7. The rotary kiln cylinder and belt wheel connection structure as claimed in claim 4, wherein: the sizing block base plate (2.1) is connected with the lower stud (2.3) through welding; the sizing block elastic support (2.2) is connected with the upper stud (2.4) through welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921930711.3U CN211233881U (en) | 2019-11-11 | 2019-11-11 | Rotary kiln barrel and wheel belt connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921930711.3U CN211233881U (en) | 2019-11-11 | 2019-11-11 | Rotary kiln barrel and wheel belt connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211233881U true CN211233881U (en) | 2020-08-11 |
Family
ID=71936662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921930711.3U Active CN211233881U (en) | 2019-11-11 | 2019-11-11 | Rotary kiln barrel and wheel belt connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211233881U (en) |
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2019
- 2019-11-11 CN CN201921930711.3U patent/CN211233881U/en active Active
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