Device for repairing deformation of small shaft of chain grate

Abstract

The utility model discloses a device for repairing deformation of a small shaft of a chain grate machine, which relates to the field of pellet production and comprises a shaft lever, a correcting component for correcting a bent part of the shaft lever is arranged on the outer wall of the shaft lever and comprises hooks, a steel rod and a jack, the hooks are arranged at two ends of the shaft lever, and the steel rod is connected with the jack. The inner wall of each hook is sleeved with a steel rod, a base is installed at the center point of each steel rod, a jack is installed at the top of each base, and a positioning assembly for limiting the corresponding shaft rod is installed at the top of each jack. Through the arrangement of the correction assembly, the shaft lever can be rapidly corrected through the correction assembly, the maintenance time is effectively shortened, the consumption of manpower and spare part cost is greatly reduced, through the arrangement of the positioning assembly, the position of the positioning assembly is limited at the jack, and the maintenance efficiency is improved. And the stability of the jack in the period of correcting the shaft lever is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of pellet production, specifically a device for repairing deformation of the small shaft of a chain grate machine. Background Technology

[0002] The chain grate machine is a tracked heat transfer device that undertakes the drying and preheating processes in the pellet production process. The roller feeder distributes the green pellets evenly on the grate bed at the tail of the chain grate machine, and they pass through multiple process sections such as the blower drying section, the exhaust drying section, and the preheating section in sequence. Gases of different temperatures discharged from the rotary kiln and the annular cooler pass vertically through the material layer of the chain grate machine to heat the green pellets, thereby completing the dehydration, preheating, and oxidation processes.

[0003] The normal operating temperature of the chain grate machine is 1100 degrees Celsius, and it can reach up to 1250 degrees Celsius. Working in such a high-temperature environment for a long time, the small shaft of the chain plate is very prone to deformation. When the deformation reaches a certain level, it will cause the grate plate to get stuck and unable to reset. This will not only cause local leakage of wet balls in the chain grate machine, but also cause the scraper plate to be pushed up by the grate plate. Generally, when the deformation of the small shaft of the chain grate machine exceeds a certain value, the entire grate bed will be replaced, that is, the chain plate, bushing, spacer tube, small shaft and side plate and other parts will be replaced.

[0004] While existing technology can completely solve the problem of small shaft deformation, replacing the grate bed is time-consuming. In most cases, it requires more than 20 people to work for eight hours to replace a grate bed of about three meters, which leads to high costs for spare parts and labor, prolongs maintenance time, and increases the production cost of the equipment. Utility Model Content

[0005] Based on this, the purpose of this utility model is to provide a device for repairing the deformation of the small shaft of a chain grate machine, so as to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a device for repairing the deformation of a small shaft of a chain grate machine, comprising a shaft rod, wherein a correction component for correcting the bent portion of the shaft rod is provided on the outer wall of the shaft rod, the correction component comprising a hook, a steel rod and a jack, wherein hooks are provided at both ends of the shaft rod, and a steel rod is sleeved on the inner wall of each hook, a base is installed at the center point of the steel rod, a jack is installed on the top of the base, and a positioning component for limiting the position of the shaft rod is installed on the top of the jack.

[0007] By adopting the above technical solution, the shaft can be quickly corrected using the correction component, which not only effectively shortens maintenance time but also greatly reduces labor and spare parts costs, thus lowering the production cost of the equipment. The positioning component is installed on the top of the jack, with the positioning ring fitted onto the outer wall of the jack cap. The position of the cap is limited by the second screw and the limiting plate, thereby limiting the position of the positioning component. Furthermore, the inner wall of the contact block fits snugly against the outer wall of the shaft, effectively improving the stability of the jack during shaft correction.

[0008] The present invention is further configured such that the two ends of the hook are provided with a first through hole and a second through hole, and a steel rod is sleeved in the first through hole.

[0009] Preferably, the first and second through holes effectively limit the position of the shaft and steel rod, and also facilitate the use of the components by the staff.

[0010] The present invention is further configured such that a shaft is sleeved inside the second through hole, and two sets of hooks are arranged opposite to each other.

[0011] Preferably, hooks are hung on both ends of the deformed shaft, and the base is aligned with the direction of the shaft's bending, allowing for targeted correction of the deformed area and saving maintenance time.

[0012] The present invention is further configured such that the top of the base is provided with multiple sets of first screws, and the first screws are connected to the jack.

[0013] Preferably, the first screw facilitates the connection between the base and the jack, improving the stability of the jack during operation and preventing displacement.

[0014] The present invention is further configured such that the positioning component includes a contact block and a positioning ring, the bottom of the contact block is fitted with the positioning ring, and the positioning ring is sleeved on the top of the jack.

[0015] Preferably, the jack reduces shaft wobbling during the straightening process, thus improving the stability of the straightening assembly during use.

[0016] The present invention is further configured such that the positioning ring is movably connected to the limiting plate, and the limiting plate is provided with cavities and rotating wheels at both ends.

[0017] Preferably, the cavity facilitates the screw passing through the positioning plate, and the positioning ring is fitted onto the outer wall of the top cap.

[0018] The present invention is further configured such that a second screw is fitted inside the cavity, and a handle is installed at one end of the second screw.

[0019] Preferably, the position of the jack cap is effectively clamped, making it easier for the positioning component to be installed on the top of the jack.

[0020] The present invention is further configured such that nuts are provided at both ends of the positioning ring, and a second screw is installed inside the nuts.

[0021] Preferably, the position of the second screw is controlled by rotating the handle, so that the second screw contacts the outer wall of the top cap, thereby limiting the position of the positioning ring.

[0022] The present invention is further configured such that a spring is provided between the limiting plate and the positioning ring, and the spring is fixedly connected to the positioning ring and the limiting plate.

[0023] Preferably, the spring positions the positioning plate so that it contacts the outer wall of the jack, facilitating a tight fit between the second screw and the top cap.

[0024] In summary, the present invention has the following main advantages:

[0025] 1. By setting up a correction component, this utility model can quickly correct the shaft when the small shaft of the pellet chain grate machine is deformed beyond the standard value after a period of operation. This not only effectively shortens the maintenance time, but also greatly reduces the consumption of labor and spare parts costs, thereby reducing the production cost of the equipment.

[0026] 2. This utility model, through the setting of a positioning component, installs a positioning component on the top of the jack, and the positioning ring is sleeved on the outer wall of the jack cap. The position of the cap is limited by the second screw and the limiting plate, thereby limiting the position of the positioning component. In addition, the inner wall of the contact block fits with the outer wall of the shaft, which effectively improves the stability of the jack during the correction of the shaft. Attached Figure Description

[0027] Figure 1 This is a side perspective view of the present invention;

[0028] Figure 2 This is a three-dimensional top view of the present invention;

[0029] Figure 3 This is a schematic diagram showing the position of the positioning component of this utility model;

[0030] Figure 4 This is a schematic diagram of the positioning component structure of this utility model;

[0031] Figure 5 This is an enlarged view of point A in this utility model;

[0032] Figure 6 This is a schematic diagram of the hook shape of this utility model;

[0033] Figure 7 This is a schematic diagram showing the position of the correction component of this utility model.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Shaft; 2. Hook; 20. First through hole; 21. Second through hole; 3. Steel rod; 4. Base; 40. First screw; 5. Jack; 6. Positioning assembly; 60. Contact block; 61. Positioning ring; 62. Rotary handle; 63. Second screw; 64. Limiting plate; 644. Cavity; 645. Rotating wheel; 65. Spring. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0037] The embodiments of this utility model will be described below based on its overall structure.

[0038] First embodiment:

[0039] Please see Figures 1-7 The system includes a shaft 1, with a straightening assembly on the outer wall of the shaft 1 to correct any bending. The straightening assembly includes hooks 2, steel rods 3, and jacks 5. Hooks 2 are located at both ends of the shaft 1, and steel rods 3 are fitted onto the inner walls of each hook 2. A base 4 is mounted at the center point of the steel rod 3, and a jack 5 is mounted on top of the base 4. A positioning assembly 6 is mounted on top of the jack 5 to limit the movement of the shaft 1. Through the straightening assembly, when the deformation of the small shaft of the pellet chain grate exceeds the standard value after a period of operation, the straightening assembly can quickly correct the bending. The rapid straightening of shaft 1 not only effectively shortens maintenance time but also greatly reduces labor and spare parts costs, thus lowering equipment production costs. The positioning component 6 is installed on the top of the jack 5, with the positioning ring 61 fitted onto the outer wall of the jack 5's top cap. The second screw 63 and the limiting plate 64 limit the position of the top cap, thereby limiting the position of the positioning component 6. Furthermore, the inner wall of the contact block 60 fits against the outer wall of shaft 1, effectively improving the stability of the jack 5 during the straightening of shaft 1.

[0040] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 , Figure 2 and Figure 6 , Figure 7The hook 2 has a first through hole 20 and a second through hole 21 at both ends, and a steel rod 3 is sleeved inside the first through hole 20. The first through hole 20 and the second through hole 21 effectively limit the position of the shaft 1 and the steel rod 3, and also facilitate the use of the component by the staff.

[0041] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 , Figure 2 The second through hole 21 is fitted with a shaft 1, and two sets of hooks 2 are arranged opposite each other. The hooks 2 are hung on both ends of the deformed shaft 1 respectively, and the base 4 is aligned with the bending direction of the shaft 1 to specifically correct the deformed part of the shaft 1, saving maintenance time.

[0042] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 , Figure 2 and Figure 6 , Figure 7 The base 4 has multiple sets of first screws 40 on its top, and the first screws 40 are connected to the jack 5. The first screws 40 facilitate the connection between the base 4 and the jack 5, improve the stability of the jack 5 during operation, and prevent displacement.

[0043] Second embodiment:

[0044] Please see Figures 1-4 The top of the jack 5 is provided with a positioning component 6, which includes a contact block 60, a positioning ring 61, and a rotating handle 62. The positioning ring 61 is fixedly installed at the bottom of the contact block 60, and a limit plate 64 is movably installed on the inner wall of the positioning ring 61. One end of the limit plate 64 is provided with a rotating wheel 645, and the inner wall of the limit plate 64 is also provided with a cavity 644. A second screw 63 is sleeved in the cavity 644, and the other end of the second screw 63 is provided with a rotating handle 62. Furthermore, a spring 65 is installed between the limit plate 64 and the positioning ring 61 to effectively clamp the position of the top cap of the jack 5, making it easy for the positioning component 6 to be installed on the top of the jack 5. The contact block 60 contacts the shaft 1 to limit the position of the shaft 1, reducing the shaking of the shaft 1 during the correction of the shaft 1 by the jack 5, and improving the stability of the correction component during use.

[0045] In the above embodiment, please refer to the figure for details. The positioning ring 61 is provided with nuts at both ends, and a second screw 63 is installed inside the nuts. The position of the second screw 63 is controlled by rotating the handle 62, so that the second screw 63 contacts the outer wall of the top cap, thereby limiting the position of the positioning ring 61.

[0046] In practical operation, this utility model is as follows:

[0047] When the deformation of shaft 1 of the pellet chain grate machine exceeds the standard value after a period of operation, it is necessary to use a straightening component to straighten shaft 1. First, two sets of hooks 2 are welded to both sides of the steel rod 3. The base 4 is welded to the middle of the steel rod 3. Then, the hooks 2 are hung on both ends of the deformed shaft 1. The base 4 is aligned with the bending direction of the shaft 1. A jack 5 is installed between the shaft 1 and the base 4 through multiple sets of first screws 40. The jack 5 is operated until the shaft 1 is straightened to a certain extent. Using this method to straighten shaft 1, multiple groups of people can use this straightening component to work at the same time, reducing the maintenance time of the chain grate machine, and also greatly reducing labor and spare parts costs, thus reducing production costs.

[0048] Furthermore, when using jack 5 to straighten shaft 1, the positioning ring 61 is fitted onto the top cap of jack 5, so that the top cap contacts the limiting plate 64, and the spring 65 limits the position of the limiting plate 64. Then, the handle 62 is rotated so that the second screw 63 moves closer to the outer wall of the top cap, limiting the position of the positioning ring 61, which facilitates the positioning of the contact block 60. Then, the contact block 60 is aligned with the outer wall of shaft 1. Finally, jack 5 is used to move the top of jack 5 upward, thereby driving the contact block 60 to contact shaft 1, positioning the outer wall of shaft 1, reducing the shaking of the straightening assembly during operation, and improving the stability of the assembly.

[0049] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, but such modifications, substitutions, and variations are protected by patent law as long as they fall within the scope of the claims of the present invention.

Claims

1. A device for repairing deformation of a small shaft in a chain grate machine, comprising a shaft (1), characterized in that: The outer wall of the shaft (1) is provided with a correction component for correcting the bent part of the shaft (1). The correction component includes a hook (2), a steel rod (3) and a jack (5). Both ends of the shaft (1) are provided with hooks (2), and the inner wall of the hooks (2) is fitted with steel rods (3). A base (4) is installed at the center point of the steel rod (3). A jack (5) is installed on the top of the base (4), and a positioning component (6) for limiting the shaft (1) is installed on the top of the jack (5).

2. The device for repairing deformation of the small shaft of a chain grate machine according to claim 1, characterized in that: The hook (2) has a first through hole (20) and a second through hole (21) at both ends, and a steel rod (3) is sleeved inside the first through hole (20).

3. The device for repairing deformation of the small shaft of a chain grate machine according to claim 2, characterized in that: The second through hole (21) is fitted with a shaft (1), and the two sets of hooks (2) are arranged opposite to each other.

4. The device for repairing deformation of the small shaft of a chain grate machine according to claim 1, characterized in that: The base (4) has multiple sets of first screws (40) on its top, and the first screws (40) are connected to the jack (5).

5. The device for repairing deformation of the small shaft of a chain grate machine according to claim 1, characterized in that: The positioning component (6) includes a contact block (60) and a positioning ring (61). The positioning ring (61) is installed at the bottom of the contact block (60) and is sleeved on the top of the jack (5).

6. The device for repairing deformation of the small shaft of a chain grate machine according to claim 5, characterized in that: The positioning ring (61) is movably connected to the limiting plate (64), and the limiting plate (64) has cavities (644) and rotating wheels (645) at both ends.

7. The device for repairing deformation of the small shaft of a chain grate machine according to claim 6, characterized in that: The cavity (644) is fitted with a second screw (63), and a handle (62) is installed at one end of the second screw (63).

8. The device for repairing deformation of the small shaft of a chain grate machine according to claim 7, characterized in that: The positioning ring (61) is provided with nuts at both ends, and a second screw (63) is installed inside the nuts.

9. The device for repairing deformation of the small shaft of a chain grate machine according to claim 6, characterized in that: A spring (65) is provided between the limiting plate (64) and the positioning ring (61), and the spring (65) is fixedly connected to the positioning ring (61) and the limiting plate (64).

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