Rotary kiln wheel belt base plate structure capable of being efficiently utilized

Abstract

The invention discloses a rotary kiln wheel belt base plate structure capable of being efficiently utilized, and relates to the technical field of rotary kilns. Comprising a plurality of base plates evenly distributed on the outer wall of a kiln cylinder in the circumferential direction, a wheel belt arranged on the outer sides of all the base plates in a sleeving mode, a plurality of rhinoceros horn assemblies evenly distributed on the outer wall of the kiln cylinder in the circumferential direction and a plurality of ox horn assemblies evenly distributed on the outer wall of the kiln cylinder in the circumferential direction, and the base plates, the rhinoceros horn assemblies and the ox horn assemblies are the same in number. The wheel belt is located between the rhinoceros horn assembly and the ox horn assembly, and the rhinoceros horn assembly and the ox horn assembly are distributed at the two ends of the base plate in a staggered mode. The bottom of each base plate is provided with an inch liner. The check blocks welded on the kiln barrel body in two forms are arranged on the two sides of the base plate in a staggered mode. And the limiting block is fixed on the base plate through a positioning pin and a bolt, so that the base plate can be axially limited.

Description

Technical Field

[0001] The present invention relates to the technical field of rotary kilns, and more particularly to the technical field of a rotary kiln wheel tyre pad structure that can be efficiently utilized. Background Art

[0002] Rotary kilns are widely used in many production industries such as building materials, metallurgy, chemical industry, and environmental protection. The tire plays an important role in the rotary kiln, including bearing and transmitting force, ensuring the smooth rotation of the cylinder, enhancing the radial stiffness of the cylinder, and protecting the cylinder.

[0003] Usually, in order to accommodate the difference in thermal expansion between the cylinder and the tyre, and to facilitate manufacturing, installation and maintenance, optimize force, and reduce costs, the cylinder and tyre are made into a split structure. Through reasonable gap design, when the kiln is operating normally, the tyre can be properly fitted on the cylinder. Such a gap design not only allows a certain amount of expansion and contraction space for the cylinder during thermal expansion, but also ensures sufficient contact area between the tyre and the cylinder to transmit force, so that the tyre can effectively transfer the weight of the cylinder to the supporting roller, and drive the cylinder to rotate smoothly during rotation, reducing radial deformation of the cylinder.

[0004] Because the tyre and the cylinder transmit force through friction, a backing plate between the tyre and the cylinder is essential. When the tyre rotates, friction exists between the inner surface of the tyre and the backing plate. This friction causes the backing plate to move with the tyre, thereby driving the cylinder to rotate. At the same time, the backing plate can evenly transfer the gravity of the cylinder to the tyre, and then from the tyre to the supporting roller, achieving effective force transmission, protecting the cylinder surface and reducing wear.

[0005] It is also essential to install baffles or retaining rings on both sides of the tyre to limit the axial movement of the tyre along the cylinder. This ensures that the tyre maintains a stable position during force transmission, allowing force to be transmitted in the intended direction, avoiding uneven force transmission or other unstable factors caused by axial movement of the tyre, and helping to improve the efficiency and stability of force transmission.

[0006] In the existing technology, the installation and maintenance of the axial limit block and the backing plate of the wheel tyre is a relatively complicated operation, especially the replacement of the backing plate after it reaches the designed wear depth, which requires a lot of blowing and welding work. Summary of the Invention

[0007] The present invention aims to address the technical problem of existing rotary kiln tyre pads requiring complete replacement upon wear at the contact section with the tyre, a complex replacement process. The present invention provides a highly efficient rotary kiln tyre pad structure. This solution extends the pad's service life while reducing labor intensity.

[0008] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions: The present invention provides a rotary kiln wheel tyre pad structure that can be efficiently utilized, comprising a plurality of tyres uniformly distributed circumferentially on the outer wall of the kiln shell, a wheel tyre sleeved on the outside of all the tyres, a plurality of rhino horn assemblies uniformly distributed circumferentially on the outer wall of the kiln shell, and a plurality of ox horn assemblies uniformly distributed circumferentially on the outer wall of the kiln shell, wherein the number of the tyres, the rhino horn assemblies and the ox horn assemblies is the same, the wheel tyre is located between the rhino horn assemblies and the ox horn assemblies, and the rhino horn assemblies and the ox horn assemblies are distributed in a staggered manner at both ends of the tyres; and a liner is provided at the bottom of each tyre.

[0009] Specifically, this structure has two types of stoppers welded to the kiln shell, staggered on both sides of the pad. Together with the limit blocks fixed to the pad via locating pins and bolts, they can limit the axial direction of the pad.

[0010] In one embodiment, the rhino horn assembly includes a T-shaped member body welded to the outer wall of the kiln shell, a rhino horn stopper arranged on the side of the T-shaped member body away from the ox horn assembly, and two first gasket assemblies arranged on the side of the T-shaped member body away from the ox horn assembly. The two first gasket assemblies are symmetrically arranged on both sides of the rhino horn stopper, the vertical plate of the T-shaped member body and the rhino horn stopper are located between two adjacent gaskets, the two ends of the horizontal plate of the T-shaped member body overlap the edges of the two adjacent gaskets, and each first gasket assembly is correspondingly arranged on the gasket at the lower part of one end of the horizontal plate.

[0011] In one embodiment, each first gasket assembly is fastened to the corresponding gasket plate by bolts.

[0012] Specifically, a group of threaded holes are provided on both the inner and outer sides of the upper surface of the backing plate, and each group of threaded holes has two threads. The first gasket assembly is locked on the corresponding group of threaded holes of the backing plate by two bolts.

[0013] In one embodiment, the thickness of the first gasket assembly is smaller than the distance from the lower portion of one end of the transverse plate to the gasket.

[0014] Specifically, a large gap exists between the backing plate and the crossbar of the T-piece body. This gap is filled with a first gasket assembly consisting of varying thicknesses. A 1mm gap must be maintained between the top of the first gasket assembly and the crossbar of the T-piece body to accommodate thermal expansion during kiln operation. The first gasket assembly is bolted to the backing plate.

[0015] In one embodiment, the width of the rhino horn stopper gradually increases from the rhino horn component to the ox horn component.

[0016] In one embodiment, the ox horn assembly includes a U-shaped piece welded to the outer wall of the kiln cylinder and opening downward, two ox horn stops and a limit block arranged on the side of the U-shaped piece away from the rhino horn assembly, the end of the pad passes through the internal hollow of the U-shaped piece, the two ox horn stops are symmetrically arranged on the two right-angled edges of the U-shaped piece on the side away from the rhino horn assembly, the limit block is arranged on the pad between the two ox horn stops, and the limit block is fixed to the pad by a bolt assembly and a locking pin.

[0017] In one embodiment, the horn assembly further includes a second gasket assembly, and a placement groove for placing the second gasket assembly is provided at the bottom of the limit block, and the limit block and the second gasket assembly are fixed to the pad by a bolt assembly and a locking pin.

[0018] In one embodiment, the width of each horn stopper gradually decreases from the rhino horn component to the horn component.

[0019] In one embodiment, the shape of the gasket is the same as that of the backing plate, and both ends of the gasket are provided with folded corners for facilitating the positioning and limiting of the gasket.

[0020] Specifically, a liner is provided between the backing plate and the kiln shell, and four corners are provided at both ends of the liner to facilitate the positioning and limiting of the liner during installation.

[0021] When the pad is worn beyond a certain thickness and the gap between the tyre and the pad cannot meet the requirements, you only need to increase the number of layers of pads under the pad and reduce the number of layers of gaskets on the pad to adjust the pad to maintain a reasonable gap with the tyre.

[0022] In one embodiment, the first gasket assembly and the second gasket assembly are both composed of multiple steel plates with a thickness of 1 to 2 mm.

[0023] The beneficial effects of the present invention are as follows: 1. The structure of the present invention is simple to install, and requires no blow-welding or welding during operation, maintenance, or replacement. This structure effectively extends the service life of the pad. The pad under the pad and the gasket on the pad are made of ordinary carbon steel, resulting in low manufacturing and maintenance costs.

[0024] 2. The rhino horn component and the ox horn component are welded to the cylinder. At this time, the wheel tyre can be limited, and then the wedge pad and the gasket at its bottom are inserted into the gap between the stop block and the cylinder from the direction of the kiln head, and then the gasket can be limited by the limit block and pin.

[0025] 3. By reducing the number of gaskets in the first gasket assembly and the second gasket assembly above the gasket and increasing the number of gaskets below the gasket, the gap between the gasket and the wheel tyre after wear can be adjusted.

[0026] 4. The pad is designed with a folded corner, which can achieve self-positioning of the pad. This structure can greatly increase the service life of the pad and is convenient and quick to replace, without welding or hot work, saving time and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 The diagram shows the structure of a rotary kiln wheel pad that can be efficiently utilized.

[0029] Figure 2 The present invention is a partial cross-sectional view of a rotary kiln wheel tyre pad structure that can be efficiently utilized.

[0030] Figure 3 The diagram is an enlarged cross-sectional view of a rotary kiln wheel tyre pad structure that can be efficiently utilized.

[0031] Figure 4 A cross-sectional view of the installation of a highly efficient rotary kiln wheel tyre pad structure Figure 5 Schematic diagram of the structure of the rhino horn component.

[0032] Figure 6 This is a structural diagram of the horn component.

[0033] Figure 7 It is a structural diagram of the limit block.

[0034] Figure 8 Schematic diagram of the structure of the pad.

[0035] Figure 9 Schematic diagram of the structure of the pad.

[0036] Figure numerals: 1. kiln shell; 2. wheel rim; 3. rhino horn assembly; 4. first gasket assembly; 5. pad; 6. liner; 7. ox horn assembly; 8. limit block; 9. second gasket assembly; 10. folded corner. DETAILED DESCRIPTION

[0037] To make the technical problems, technical solutions, and technical effects of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0039] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. In addition, the terms "first," "second," etc. are used only to distinguish the descriptions and are not to be understood as indicating or implying relative importance.

[0040] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when in use. They 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 operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0041] Example 1 This embodiment provides a rotary kiln wheel tyre pad structure that can be efficiently utilized, including a number of pads 5 uniformly distributed circumferentially on the outer wall of the kiln shell 1, a wheel tyre 2 sleeved on the outside of all the pads 5, a number of rhino horn components 3 uniformly distributed circumferentially on the outer wall of the kiln shell 1, and a number of ox horn components 7 uniformly distributed circumferentially on the outer wall of the kiln shell 1. The number of pads 5, rhino horn components 3 and ox horn components 7 is the same, the wheel tyre 2 is located between the rhino horn components 3 and the ox horn components 7, and the rhino horn components 3 and the ox horn components 7 are distributed at both ends of the pads 5 in a staggered manner; a liner 6 is provided at the bottom of each pad 5.

[0042] Specifically, this structure has two types of stoppers welded to the kiln shell 1, which are staggered on both sides of the pad 5. Together with the limit blocks 8 fixed to the pad 5 by positioning pins and bolts, they can limit the axial direction of the pad 5.

[0043] In one embodiment, the rhino horn assembly 3 includes a T-shaped member body welded to the outer wall of the kiln shell 1, a rhino horn stopper arranged on the side of the T-shaped member body away from the ox horn assembly 7, and two first gasket assemblies 4 arranged on the side of the T-shaped member body away from the ox horn assembly 7. The two first gasket assemblies 4 are symmetrically arranged on both sides of the rhino horn stopper, the vertical plate of the T-shaped member body and the rhino horn stopper are located between two adjacent gaskets 5, the two ends of the horizontal plate of the T-shaped member body are overlapped on the edges of the two adjacent gaskets 5, and each first gasket assembly 4 is correspondingly arranged on the gasket 5 at the lower part of one end of the horizontal plate.

[0044] In one embodiment, each first gasket assembly 4 is fastened to the corresponding gasket plate 5 by bolts.

[0045] Specifically, a group of threaded holes is provided on both inner and outer sides of the upper surface of the backing plate 5 , with each group of threaded holes consisting of two. The first gasket assembly 4 is fastened to the corresponding group of threaded holes of the backing plate 5 by two bolts.

[0046] In one embodiment, the thickness of the first gasket assembly 4 is smaller than the distance from the lower portion of one end of the transverse plate to the backing plate 5 .

[0047] Specifically, there's a large gap between the backing plate 5 and the T-piece's horizontal plate. This gap is filled with a set of first gasket assemblies 4, each composed of varying thicknesses. A 1mm gap must be maintained between the top of the first gasket assembly 4 and the T-piece's horizontal plate to accommodate thermal expansion during kiln operation. The first gasket assembly 4 is bolted to the backing plate 5.

[0048] In one embodiment, the width of the rhino horn stopper gradually increases from the rhino horn component 3 to the ox horn component 7.

[0049] In one embodiment, the horn assembly 7 includes a U-shaped part welded to the outer wall of the kiln shell 1 and opening downward, two horn blocks arranged on the side of the U-shaped part away from the rhino horn assembly 3, and a limit block 8. The end of the pad 5 passes through the internal hollow of the U-shaped part. The two horn blocks are symmetrically arranged on the two right-angled edges of the U-shaped part away from the rhino horn assembly 3. The limit block 8 is arranged on the pad 5 between the two horn blocks. The limit block 8 is fixed to the pad 5 by a bolt assembly and a locking pin.

[0050] In one embodiment, the horn assembly 7 also includes a second gasket assembly 9, and a placement groove for placing the second gasket assembly 9 is provided at the bottom of the limit block 8. The limit block 8 and the second gasket assembly 9 are fixed to the pad 5 by a bolt assembly and a locking pin.

[0051] In one embodiment, the width of each horn stopper gradually decreases from the rhino horn component 3 to the horn component 7.

[0052] In one embodiment, the shape of the liner 6 is the same as that of the backing plate 5 , and both ends of the liner 6 are provided with corners 10 for facilitating the positioning and limiting of the liner 6 .

[0053] Specifically, a liner 6 is provided between the backing plate 5 and the kiln shell 1 , and four corners 10 are provided at both ends of the liner 6 to facilitate positioning and limiting of the liner 6 during installation.

[0054] When the pad 5 is worn beyond a certain thickness and the gap between the wheel 2 and the pad 5 cannot meet the requirements, it is only necessary to increase the number of layers of the liner 6 under the pad 5 and reduce the number of layers of the gasket on the pad 5 to adjust the pad 5 to maintain a reasonable gap with the wheel 2.

[0055] In one embodiment, the first gasket assembly 4 and the second gasket assembly 9 are both composed of multiple steel plates with a thickness of 1 to 2 mm.

[0056] Here’s how it works: like Figure 1 As shown, the rotary kiln has a certain inclination during operation, which requires the entire pad 5 structure to be able to effectively limit the position between the wheel 2 and the kiln shell 1 and to transmit force smoothly. At the same time, it is also necessary to protect the kiln shell 1 to prevent damage caused by relative sliding of the wheel 2 and the shell along the axial direction during operation.

[0057] like Figure 2 As shown, the efficient utilization pad 5 structure is evenly distributed between the wheel 2 and the kiln shell 1. When the kiln is running, only the illustrated area of the pad 5 will be worn. When the wear time reaches the point where the pad 5 needs to be raised, it is only necessary to loosen the fasteners, pull out the pad 5 in the direction shown in the figure, and then perform subsequent operations.

[0058] Figure 3 This is the specific structure of the efficient utilization backing plate 5. Each backing plate 5 is held in place by a rhinoceros horn block and an ox horn block. The rhinoceros horn assembly 3 and the ox horn assembly 7 are permanently welded to the kiln shell 1. A stopper 8, via a locating pin and fasteners, holds the backing plate 5 in position. The gaps between the backing plate 5 and the rhinoceros horn assembly 3 and the ox horn assembly 7 are filled with a first gasket assembly 4 and a second gasket assembly 9, which are secured to the backing plate 5 via bolts and locating pins. The rhinoceros horn assembly 3, the ox horn assembly 7, and the stopper 8 effectively limit the position of the wheel tyre 2 and the backing plate 5.

[0059] After the initial installation is complete Figure 4 The state shown. If the wear exceeds the limit and the backing plate 5 needs to be raised, simply remove the locating pins and corresponding fasteners, pull out the backing plate 5, increase the number of gaskets 6, and reduce the thickness of the first gasket assembly 4 and the second gasket assembly 9 on the backing plate 5. The first gasket assembly 4 and the second gasket assembly 9 are composed of 1-2 mm thick steel plates. After adjustment, ensure that the backing plate 5 is cold and the gap between the backing plate 5 and the wheel tyre 2 is restored to the original expansion gap.

[0060] Rhino horn component 3 Figure 5 As shown, it is in the shape of a rhinoceros horn. Horn component 7 as Figure 6 As shown, it is in the shape of an ox horn and can be combined with the rhino horn component 3 to clamp and limit the pad 5 and the wheel rim 2.

[0061] Limit block 8 Figure 7 As shown, the pad 5 is finally limited by the positioning pin holes and threaded holes opened thereon.

[0062] Pad 5 Figure 8 As shown, three sets of threaded holes are also provided on it for installing the gasket assembly. The pin holes on it are used to install and position the limit block 8. The backing plate 5 is a curved plate with a wedge at one end, which can be inserted into the gap formed by the horn assembly 7 and the kiln shell 1. The wedge shoulder and the horn stop block form an effective limit.

[0063] Pad 6 as Figure 9 As shown, it also has a wedge at one end and angles 10 at both ends. After installation, the angles 10 are folded up to limit the position of the device to prevent relative sliding.

Claims

1. A rotary kiln wheel tyre pad structure that can be efficiently utilized, characterized in that: The invention comprises a plurality of pads (5) uniformly distributed on the outer wall of a kiln barrel (1), a wheel belt (2) sleeved on the outside of all the pads (5), a plurality of rhino horn assemblies (3) uniformly distributed on the outer wall of the kiln barrel (1), and a plurality of ox horn assemblies (7) uniformly distributed on the outer wall of the kiln barrel (1), wherein the pads (5), the rhino horn assemblies (3), and the ox horn assemblies (7) are of the same number, the wheel belt (2) is located between the rhino horn assemblies (3) and the ox horn assemblies (7), and the rhino horn assemblies (3) and the ox horn assemblies (7) are distributed at both ends of the pads (5) in a staggered manner; and a liner (6) is provided at the bottom of each pad (5).

2. The highly efficient rotary kiln wheel tyre pad structure according to claim 1, characterized in that: The rhino horn assembly (3) includes a T-shaped member body welded to the outer wall of the kiln shell (1), a rhino horn stopper provided on the side of the T-shaped member body away from the ox horn assembly (7), and two first gasket assemblies (4) provided on the side of the T-shaped member body away from the ox horn assembly (7), the two first gasket assemblies (4) being symmetrically provided on both sides of the rhino horn stopper, the vertical plate of the T-shaped member body and the rhino horn stopper being located between two adjacent gaskets (5), the two ends of the horizontal plate of the T-shaped member body being overlapped on the edges of the two adjacent gaskets (5), and each first gasket assembly (4) being correspondingly provided on the gasket (5) at the lower part of one end of the horizontal plate.

3. The highly efficient rotary kiln wheel tyre pad structure according to claim 2, characterized in that: Each of the first gasket assemblies (4) is fastened to the corresponding gasket plate (5) by means of bolts.

4. The highly efficient rotary kiln wheel tyre pad structure according to claim 2, characterized in that: The thickness of the first gasket assembly (4) is less than the distance from the lower portion of one end of the transverse plate to the gasket (5).

5. The highly efficient rotary kiln wheel tyre pad structure according to claim 2, characterized in that: The width of the rhino horn stopper gradually increases in a direction from the rhino horn component (3) to the ox horn component (7).

6. The highly efficient rotary kiln wheel tyre pad structure according to claim 2, characterized in that: The ox horn assembly (7) includes a U-shaped piece welded on the outer wall of the kiln shell (1) and opening downward, two ox horn blocks and a limit block (8) arranged on the side of the U-shaped piece away from the rhino horn assembly (3), the end of the pad (5) passes through the internal hollow of the U-shaped piece, the two ox horn blocks are symmetrically arranged on the two right-angled sides of the U-shaped piece away from the rhino horn assembly (3), the limit block (8) is arranged on the pad (5) between the two ox horn blocks, and the limit block (8) is fixed to the pad (5) by a bolt assembly and a locking pin.

7. The highly efficient rotary kiln wheel tyre pad structure according to claim 6, characterized in that: The horn assembly (7) further comprises a second gasket assembly (9), a placement groove for placing the second gasket assembly (9) is provided at the bottom of the limit block (8), and the limit block (8) and the second gasket assembly (9) are fixed to the backing plate (5) via a bolt assembly and a locking pin.

8. The highly efficient rotary kiln wheel tyre pad structure according to claim 6, characterized in that: The width of each horn stopper gradually decreases in the direction from the rhino horn component (3) to the horn component (7).

9. The highly efficient rotary kiln wheel tyre pad structure according to claim 1, characterized in that: The shape of the liner (6) is the same as that of the backing plate (5), and both ends of the liner (6) are provided with folded corners (10) for facilitating the positioning and limiting of the liner (6).

10. The highly efficient rotary kiln wheel tyre pad structure according to claim 8, characterized in that: The first gasket assembly (4) and the second gasket assembly (9) are both composed of multiple steel plates with a thickness of 1 to 2 mm.

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