A sealing device for the lower slide of a sintering machine

Abstract

The utility model discloses a sealing device for a lower slide of a sintering machine, belonging to the technical field of sintering machines. The sealing device for a lower slide of a sintering machine comprises a base, side beams are symmetrically fixedly connected to the tops of both sides of the base, a trolley is slidably arranged above the base, wherein a sealing plate groove is opened on the top of the side beam, a sealing plate is arranged in the sealing plate groove, and the sealing plate is controlled to be lifted and lowered in the sealing plate groove by an electric lifting mechanism; the utility model controls the sealing plate to be extended and retracted by the electric lifting mechanism, when the trolley moves, the sealing plate moves downward to separate the first sealing strip from the trolley, when sealing is required, the sealing plate moves upward and is sealed and connected to the trolley through the first sealing strip, and through the lifting sealing structure, wear of the sealing component can be avoided when the trolley moves, the service life of the sealing component is greatly improved, and frequent replacement of the sealing component is avoided, thereby reducing the work tasks of the staff.

Description

Technical Field

[0001] The utility model relates to the technical field of sintering machines, in particular to a sealing device for a lower slide of a sintering machine. Background Art

[0002] The sintering machine is suitable for the sintering operation of large-scale ferrous metallurgical sintering plants, and is mainly suitable for the sintering treatment of iron ore powder in large and medium-sized sintering plants. The sintering machine includes a slide, and the sintering machine trolley carrying the material is located above the slide. The bottom of the sintering machine trolley is provided with grate bars, and a suction device is provided under the slide. The sintering machine trolley is exhausted by the suction device to achieve full combustion of the material. In order to avoid air leakage, the slide under the sintering machine needs to be sealed by a sealing device.

[0003] The current sealing device for the lower slide of a sintering machine, for example, a flexible lower slide sealing device for a sintering machine proposed in Publication No. CN219913963U, the utility model sets the angle steel seat as a movable seat for fixing the slide plate, sets the channel steel base as a fixed base, a pin shaft is connected under the angle steel seat, and the elastic element is set between the pin shaft and the channel steel base. With this supporting structural design, when the elastic force of the elastic element is insufficient and the seal is not tight, the elastic element can be replaced simply and conveniently without disassembling the overall sealing device, that is, there is no need to dismantle or replace the entire sealing device, thereby achieving rapid inspection and maintenance, with low maintenance cost and improved sealing effect. At the same time, the structural design has no obstruction, no risk of jamming, and higher stability.

[0004] Although the existing lower slide sealing device of the sintering machine makes the seal tightly sealed by the elastic element, it is found in use that when the trolley moves, the seal is always close to the trolley. As the trolley moves, the trolley and the seal move relative to each other, which will cause serious wear on the seal. The staff needs to replace the seal frequently, which is inconvenient to use. Utility Model Content

[0005] The utility model aims to provide a sealing device for a lower slide of a sintering machine, which achieves the purpose of avoiding wear on the sealing component when the trolley moves through the lifting sealing structure, greatly improving the service life of the sealing component, avoiding frequent replacement of the sealing component, and thus reducing the work tasks of the staff.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a sealing device for the lower slide of a sintering machine, comprising a base, the tops of both sides of the base are symmetrically fixedly connected with side beams, and a trolley is slidably arranged above the base, wherein:

[0007] A sealing plate groove is provided on the top of the side beam, a sealing plate is arranged in the sealing plate groove, and the sealing plate is controlled to be lifted and lowered in the sealing plate groove by an electric lifting mechanism;

[0008] A first sealing strip is installed on the top of the sealing plate, and second sealing strips are symmetrically installed on the inner walls on both sides of the sealing plate groove near the opening. The inner wall of the sealing plate groove is sealed and connected to the sealing plate through the second sealing strip.

[0009] Preferably, a track is fixedly installed on the top of the base near the outer side of the side beam, the trolley is rotatably connected to the outer side of the track, and a material plate is installed on the inner side of the trolley near the bottom.

[0010] Preferably, the electric lifting mechanism includes a threaded groove, a threaded groove is opened in the middle of the bottom end of the sealing plate, an adjusting screw is threadedly connected to the threaded groove, a transmission groove is opened inside the lower part of the side beam corresponding to the threaded groove, one end of the adjusting screw is located in the transmission groove and is fixedly connected to a first reversing gear, a servo motor is installed at the top of the base corresponding to the transmission groove, a second reversing gear is installed at the shaft end of the servo motor close to the first reversing gear, guide grooves are symmetrically opened below the sealing plate close to the end, and a guide rod is fixedly connected to the inner bottom of the guide groove corresponding to the sealing plate groove.

[0011] Preferably, the first reversing gear and the second reversing gear are perpendicular to each other, and the first reversing gear is meshed with the second reversing gear.

[0012] Preferably, the guide rod is a cylinder, and the outer diameter of the guide rod matches the inner diameter of the guide groove.

[0013] Preferably, the first sealing strip is hollow and filled with gas, and the first sealing strip is fixedly connected to the top of the sealing plate by gluing.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model controls the extension and retraction of the sealing plate through the electric lifting mechanism. When the trolley moves, the sealing plate moves downward to separate the first sealing strip from the trolley. When sealing is required, the sealing plate moves upward and is sealed with the trolley through the first sealing strip. The lifting sealing structure can avoid wear on the sealing member when the trolley moves, greatly improving the service life of the sealing member, avoiding frequent replacement of the sealing member, and thus reducing the workload of the staff.

[0016] 2. In the utility model, when it is necessary to control the sealing plate to be lifted or lowered, the servo motor drives the second reversing gear to rotate, and the second reversing gear drives the first reversing gear to rotate through meshing, thereby driving the adjusting screw to rotate. The adjusting screw drives the sealing plate to be lifted or lowered in the sealing plate groove through the threaded connection with the sealing plate. At the same time, the guiding structure formed by the guide groove and the guide rod can guide the lifting or lowering of the sealing plate to avoid deviation of the lifting or lowering of the sealing plate. The electric lifting mechanism can be used to control the sealing plate to be lifted or lowered vertically. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the sealing plate of the utility model;

[0019] Figure 3 For this utility model Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0020] In the figure: 1. base; 2. side beam; 3. trolley; 4. track; 5. wheel; 6. material plate; 7. sealing plate groove; 8. sealing plate; 9. thread groove; 10. adjusting screw; 11. transmission groove; 12. first reversing gear; 13. servo motor; 14. second reversing gear; 15. guide groove; 16. guide rod; 17. first sealing strip; 18. second sealing strip. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example:

[0023] See also Figures 1 to 3 The utility model provides a technical solution: a sealing device for the lower slide of a sintering machine, comprising a base 1, the tops of both sides of the base 1 are symmetrically fixedly connected with side beams 2, and a trolley 3 is slidably arranged above the base 1, wherein:

[0024] A sealing plate groove 7 is provided at the top of the side beam 2, and a sealing plate 8 is arranged in the sealing plate groove 7. The sealing plate 8 is controlled to be raised and lowered in the sealing plate groove 7 by an electric lifting mechanism;

[0025] A first sealing strip 17 is installed on the top of the sealing plate 8, and second sealing strips 18 are symmetrically installed on the inner walls of both sides of the sealing plate groove 7 near the opening, and the inner wall of the sealing plate groove 7 is sealed and connected to the sealing plate 8 through the second sealing strips 18;

[0026] The sealing plate 8 is controlled to extend and retract by an electric lifting mechanism. When the trolley 3 moves, the sealing plate 8 moves downward to separate the first sealing strip 17 from the trolley 3. When sealing is required, the sealing plate 8 moves upward and is sealed with the trolley 3 through the first sealing strip 17. The lifting sealing structure can avoid wear on the seal when the trolley 3 moves, greatly improving the service life of the seal, avoiding frequent replacement of the seal, and thus reducing the workload of the staff.

[0027] See also Figures 1 to 3 A track 4 is fixedly installed on the top of the base 1 near the outer side of the side beam 2, and a wheel 5 is rotatably connected to the outer side of the trolley 3 corresponding to the track 4. A material plate 6 is installed on the inner side of the trolley 3 near the bottom. The electric lifting mechanism includes a threaded groove 9, a threaded groove 9 is opened in the middle of the bottom end of the sealing plate 8, and an adjusting screw 10 is threadedly connected to the threaded groove 9. A transmission groove 11 is opened inside the lower part of the side beam 2 corresponding to the threaded groove 9, and the adjusting screw 10 is located in the transmission groove 11 and fixedly connected to a first reversing gear 12 at one end. A servo motor 13 is installed on the top of the base 1 corresponding to the transmission groove 11, and a second reversing gear 14 is installed on the shaft end of the servo motor 13 near the first reversing gear 12. The lower end of the sealing plate 8 near the end A guide groove 15 is symmetrically provided on the sealing plate groove 7, and a guide rod 16 is fixedly connected to the inner bottom of the sealing plate groove 7 corresponding to the guide groove 15. When the sealing plate 8 needs to be controlled to be lifted or lowered, the servo motor 13 drives the second reversing gear 14 to rotate, and the second reversing gear 14 drives the first reversing gear 12 to rotate through meshing, thereby driving the adjusting screw 10 to rotate. The adjusting screw 10 drives the sealing plate 8 to be lifted or lowered in the sealing plate groove 7 through a threaded connection with the sealing plate 8. At the same time, the guiding structure formed by the guide groove 15 and the guide rod 16 can guide the lifting of the sealing plate 8 to avoid deviation of the lifting of the sealing plate 8. The electric lifting mechanism can be used to control the sealing plate 8 to be lifted or lowered vertically.

[0028] See also Figures 1 to 3 The first reversing gear 12 and the second reversing gear 14 are perpendicular to each other, and the first reversing gear 12 and the second reversing gear 14 are meshed with each other. The guide rod 16 is a cylinder, and the outer diameter of the guide rod 16 matches the inner diameter of the guide groove 15. The first sealing strip 17 is hollow, and the first sealing strip 17 is filled with gas, and the first sealing strip 17 is fixedly connected to the top of the sealing plate 8 by gluing. When the sealing plate 8 is pressed against the trolley 3 through the first sealing strip 17, the first sealing strip 17 filled with gas enhances its own elasticity, so that the first sealing strip 17 can be close to the trolley 3, thereby improving the sealing effect.

[0029] Working principle: This kind of sealing device for the lower slide of a sintering machine controls the expansion and contraction of the sealing plate 8 through the electric lifting mechanism. When the trolley 3 moves, the sealing plate 8 moves downward to separate the first sealing strip 17 from the trolley 3. When sealing is required, the sealing plate 8 moves upward and is sealed and connected to the trolley 3 through the first sealing strip 17. Through the lifting sealing structure, it is possible to avoid wear on the sealing component when the trolley 3 moves, greatly improving the service life of the sealing component, avoiding frequent replacement of the sealing component, and thus reducing the workload of the staff;

[0030] When it is necessary to control the sealing plate 8 to be lifted or lowered, the servo motor 13 drives the second reversing gear 14 to rotate, and the second reversing gear 14 drives the first reversing gear 12 to rotate through meshing, thereby driving the adjusting screw 10 to rotate. The adjusting screw 10 drives it to be lifted or lowered in the sealing plate groove 7 through the threaded connection with the sealing plate 8. At the same time, the guiding structure formed by the guide groove 15 and the guide rod 16 can guide the lifting or lowering of the sealing plate 8 to avoid deviation of the lifting or lowering of the sealing plate 8. The electric lifting mechanism is used to control the sealing plate 8 to be lifted or lowered vertically. When the sealing plate 8 is pressed against the trolley 3 through the first sealing strip 17, the first sealing strip 17 filled with gas can enhance the elasticity of the first sealing strip 17 itself, so that the first sealing strip 17 can be close to the trolley 3 to improve the sealing effect.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing device for a lower slideway of a sintering machine, comprising a base (1), characterized in that: The tops of both sides of the base (1) are symmetrically fixedly connected with side beams (2), and a trolley (3) is slidably arranged above the base (1), wherein: A sealing plate groove (7) is provided on the top of the side beam (2), a sealing plate (8) is arranged in the sealing plate groove (7), and the sealing plate (8) is controlled to be raised and lowered in the sealing plate groove (7) by an electric lifting mechanism; A first sealing strip (17) is installed on the top of the sealing plate (8), and second sealing strips (18) are symmetrically installed on the inner walls on both sides of the sealing plate groove (7) near the opening. The inner wall of the sealing plate groove (7) is sealed and connected to the sealing plate (8) via the second sealing strip (18).

2. The sealing device for the lower slide of a sintering machine according to claim 1, characterized in that: A track (4) is fixedly installed on the top of the base (1) near the outside of the side beam (2), and the trolley (3) is rotatably connected to the outside of the track (4) with wheels (5), and a material plate (6) is installed on the inside of the trolley (3) near the bottom.

3. The sealing device for the lower slide of a sintering machine according to claim 1, characterized in that: The electric lifting mechanism comprises a thread groove (9), a thread groove (9) is provided at the middle of the bottom end of the sealing plate (8), an adjusting screw (10) is connected to the thread inside the thread groove (9), a transmission groove (11) is provided inside the side beam (2) corresponding to the thread groove (9), one end of the adjusting screw (10) located in the transmission groove (11) is fixedly connected to a first reversing gear (12), a servo motor (13) is installed at the top of the base (1) corresponding to the transmission groove (11), a second reversing gear (14) is installed at the shaft end of the servo motor (13) close to the first reversing gear (12), a guide groove (15) is symmetrically provided below the sealing plate (8) close to the end, and a guide rod (16) is fixedly connected to the inner bottom of the sealing plate groove (7) corresponding to the guide groove (15).

4. The sealing device for the lower slide of a sintering machine according to claim 3, characterized in that: The first reversing gear (12) and the second reversing gear (14) are perpendicular to each other, and the first reversing gear (12) and the second reversing gear (14) are meshed.

5. The sealing device for the lower slide of a sintering machine according to claim 3, characterized in that: The guide rod (16) is a cylinder, and the outer diameter of the guide rod (16) matches the inner diameter of the guide groove (15).

6. The sealing device for the lower slide of a sintering machine according to claim 1, characterized in that: The first sealing strip (17) is hollow and filled with gas, and the first sealing strip (17) is fixedly connected to the top of the sealing plate (8) by gluing.

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