Cover pressing device for walking trolley cover type high temperature annealing furnace

Abstract

The present application relates to a silicon steel production equipment, and particularly discloses a pressing cover device for a step-by-step trolley cover type high-temperature annealing furnace, which is used for pressing a cylinder cover of a sealed steel coil on a trolley conveying the steel coil. The pressing cover device comprises a rack and a pressing cover mechanism installed on the rack. The pressing cover mechanism comprises a hydraulic cylinder and a pressing disc. The hydraulic cylinder is installed on the rack, and the pressing disc is connected to a movable end of the hydraulic cylinder and lifted and lowered by the hydraulic cylinder. The pressing disc comprises a frame, a support and a pressing jaw. The frame is connected to the movable end of the hydraulic cylinder. The support is installed on the frame at equal intervals along a ring line corresponding to the outer periphery of the top end of the cylinder cover. The pressing jaw is installed on each support. The bottom surface of the pressing jaw has an inclined surface part in contact with and tangent to the top surface of the cylinder cover. The pressing jaw installed on the pressing disc of the pressing cover device is distributed and pressed on the large-diameter outer circular part of the arc-shaped vault of the cylinder cover, so that the large-curvature vault is not destructively pressed down, and the service life of the cover is prolonged.

Description

Technical Field

[0001] The present invention relates to the field of silicon steel production equipment, and in particular to a cover pressing device for a walking trolley cover-type high-temperature annealing furnace. Background Art

[0002] In the whole steel coil cover high temperature process, the oriented silicon steel needs to be loaded first, and then the tube cover is put on the outside of the steel coil, and the bottom end of the tube cover must be completely inserted into the sealed sand groove on the trolley to ensure that the steel coil is annealed according to the process in the high temperature furnace.

[0003] The current common method is to first use a crane to lift the barrel cover to cover the steel coil, then lower the lifting device from the crane, lift the heavy object again, and intermittently press down on the top of the barrel cover to fully insert the bottom of the barrel cover into the sealing sand groove on the annealing trolley. The barrel cover is generally composed of a circular cylinder with an arc-shaped convex cover integrally formed on the top of the cylinder. Since the top of the barrel cover is an arc-shaped convex cover, it will be severely deformed by long-term use, resulting in severe deformation of the convex cover and a short service life. It is also cumbersome and inefficient. The barrel cover is prone to tilting after being pressed down, which cannot meet the sealing requirements. Summary of the Invention

[0004] In order to solve the deficiencies in the above-mentioned prior art, the utility model proposes a cover pressing device for a walking trolley cover-type high-temperature annealing furnace, which has a simple structure, reasonable design, simple operation, high cover pressing efficiency; extends the service life of the cover; and improves the sand sealing effect after the cover is pressed.

[0005] The present invention is achieved through the following technical solutions:

[0006] A cover pressing device for a walking trolley cover-type high-temperature annealing furnace is used to press down the barrel cover of the steel coil on the trolley that transports the steel coil. The cover pressing device includes a frame and a cover pressing mechanism installed on the frame. The cover pressing mechanism includes a hydraulic cylinder and a pressure plate. The hydraulic cylinder is installed on the frame. The pressure plate is connected to the movable end of the hydraulic cylinder, and the pressure plate is driven to rise and fall by the hydraulic cylinder; the pressure plate includes a frame, a support, and a pressure claw. The frame is connected to the movable end of the hydraulic cylinder, and the supports are evenly installed on the frame along a ring line corresponding to the outer periphery of the top of the barrel cover at equal intervals. The pressure claws are installed on each support, and the bottom surface of the pressure claw has an inclined portion that contacts the top surface of the barrel cover and is tangent to the top surface of the barrel cover.

[0007] Furthermore, a plurality of pressure claws are installed side by side and at intervals on the bottom surface of each support.

[0008] Furthermore, the pressure plate includes a wear-resistant pressure plate, which is mounted on the inclined portion of each pressure jaw.

[0009] Furthermore, the frame includes columns and beams. The columns are installed in the annealing furnace and on both sides near the furnace mouth. Both ends of the beam are supported on the two columns. There are two cover pressing mechanisms, which are installed side by side on the beams.

[0010] Further, the frame adopts an equilateral polygonal polygon frame, and a center disc is formed at the center of the polygon frame, and a connecting rod extends outward from the periphery of the center disc and is connected to the frame edge of the polygon frame, and the movable end of the hydraulic cylinder is fixed to the center disc.

[0011] Further, the polygon frame has an even number of frame edges, and two opposite frame edges of the polygon are connected by a connecting rod, and a plurality of connecting rods are superimposed at the middle intersection, and are fixedly connected, and the middle intersection forms the center disc.

[0012] Further, the polygon frame includes an outer hexagonal frame and an inner hexagonal frame, the inner hexagonal frame is installed in the outer hexagonal frame, the connecting angle of the inner hexagonal frame is located at the midpoint of the frame edge of the outer hexagonal frame, and is fixed on the connecting rod.

[0013] Further, the pressure cover mechanism includes a guide mechanism, the guide mechanism includes a guide sleeve and a guide rod, the guide sleeve is fixedly erected on the rack, the guide rod is slidably sleeved in the guide sleeve, and the bottom end of the guide rod is connected to the connecting rod.

[0014] Further, the guide mechanism includes a lubricating oil nozzle, the lubricating oil nozzle is installed on the guide sleeve, and is used for lubricating the guide rod.

[0015] Further, the pressure cover mechanism includes a frame seat, the frame seat is fixedly installed on the rack, the hydraulic cylinder is installed on the frame seat, and the guide mechanism is installed on the frame seat in parallel with the hydraulic cylinder.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] 1. Simple structure, reasonable design, high pressure cover efficiency, the pressure cover device is composed of a rack and a pressure cover mechanism, and is installed at the inlet section of the high-temperature annealing furnace. The pressure cover mechanism is divided into two groups, and can independently perform the corresponding pressure cover action on the lower part.

[0018] 2. Prolong the service life of the cover, the pressure claw installed on the pressure disc in the pressure cover mechanism is distributed, and is pressed on the large-diameter outer circular part of the arc-shaped dome of the cover, without damaging the large-curvature dome.

[0019] 3. Improve the sand sealing effect after the pressure cover, the pressure cover mechanism is directly opposite the top to be pressed, and each pressure claw is cut to the cover in an internal pressure state, which can improve the vertical pressing state of the cover and the vertical distance of the cover into the sand sealing. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a perspective view of the pressure cover device for the step-by-step trolley cover type high-temperature annealing furnace.

[0021] Figure 2 for Figure 1 A top view of the cover pressing device shown;

[0022] Figure 3 for Figure 1 A bottom view of the cover pressing device is shown;

[0023] Figure 4 for Figure 1 The front view of the cover pressing device shown is used to press against the barrel cover of a walking-beam high-temperature annealing furnace;

[0024] Figure 5 for Figure 4 The cross-sectional view in the AA direction is shown;

[0025] Figure 6 for Figure 5 An enlarged view of part B is shown.

[0026] Figure 7 for Figure 5 An enlarged view of section C is shown.

[0027] The following are the descriptions of the reference numerals:

[0028] 10-frame; 20-pressing cover mechanism; 11-column; 12-crossbeam; 21-frame seat; 22-hydraulic cylinder; 23-guide mechanism; 24-pressure plate; 231-guide sleeve; 232-guide rod; 233-lubricating nozzle; 241-frame; 242-support; 243-pressure claw; 244-wear-resistant pressure plate; 2431-inclined portion; 31-trolley; 32-loading platform; 33-steel coil; 34-sand trough; 35-cylinder cover. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] like Figure 1-Figure 5 As shown, a preferred embodiment of the present invention is a cover pressing device for a walking trolley cover-type high-temperature annealing furnace, which is used to press down the barrel cover that covers the steel coil on the trolley that transports the steel coil. The cover pressing device includes a frame 10 and a cover pressing mechanism 20 installed on the frame 10. The cover pressing mechanism 20 is used to press down the barrel cover and fully insert the bottom of the barrel cover into the sealing sand groove on the annealing trolley to improve the sand sealing effect after the cover is pressed.

[0031] The frame 10 includes columns 11 and beams 12; the columns 11 are installed in the annealing furnace and on both sides near the furnace mouth, and the two ends of the beam 12 are supported on the two columns 11; there are two cover pressing mechanisms 20, which are installed side by side on the beam 12, and are used to press down the two corresponding barrel covers below, and can perform actions separately.

[0032] The cover pressing mechanism 20 includes a frame seat 21, a hydraulic cylinder 22, a guide mechanism 23, and a pressure plate 24; the frame seat 21 is fixedly mounted on the crossbeam 12, the hydraulic cylinder 22 is mounted on the frame seat 21, and the movable end of the hydraulic cylinder 22 extends downward; the guide mechanism 23 is mounted on the frame seat 21 in parallel with the hydraulic cylinder 22, see Figure 7 The guide mechanism 23 includes a guide sleeve 231, a guide rod 232 and a lubricating nozzle 233. The guide sleeve 231 is fixedly arranged on the frame seat 21 and penetrates the frame seat 21. The guide rod 232 is slidably mounted in the guide sleeve 231. In this embodiment, each cover pressing mechanism 20 has two guide mechanisms 23, which are arranged on both sides of the hydraulic cylinder 22; the lubricating nozzle 233 is installed on the guide sleeve 231, and is used to inject lubricating oil into the guide rod 232 to reduce the friction between the guide rod 232 and the guide sleeve 231.

[0033] The pressure plate 24 is connected to the movable end of the hydraulic cylinder 22 and the lower end of the guide rod 232, and is driven to rise and fall by the movable end of the hydraulic cylinder 22. The pressure plate 24 includes a frame 241, a support 242, a pressure claw 243 and a wear-resistant pressure plate 244. The frame 241 can be a polygonal frame that is roughly annular and surrounded by polygons of equal length, and a center disk is formed in the center of the multi-deformable frame. Connecting rods extend from the periphery of the center disk and are respectively connected to the frame edges of the polygonal frame. The polygonal frame forms a circular ring that corresponds to or is slightly smaller than the maximum outer periphery of the top of the barrel cover that covers the steel coil on the trolley. The movable end of the hydraulic cylinder 22 is fixed to the center disk, and the guide rod 232 of the guide mechanism 23 is connected to the connecting rod, so that the movable end of the hydraulic cylinder 22 drives the frame 241 to rise and fall, and at the same time, the guide rod 232 of the guide mechanism 23 slides along the guide sleeve 231 to improve the stability of the frame 241 when it is raised and lowered.

[0034] Furthermore, when the polygonal frame has an even number of frame sides, the two opposite frame sides of the polygon can be connected by connecting rods, and the connecting rods overlap and are fixed at the middle intersection, so that the middle intersection forms the center disk. In this embodiment, the polygonal frame adopts a hexagonal frame, and three connecting rods are respectively connected to the two opposite frame sides, and the intersection of the three connecting rods forms the center disk and is fixed to the movable end of the hydraulic cylinder 22. The guide rods 232 of the two guide mechanisms 23 are connected to the same connecting rod. Furthermore, in order to improve the stability of the frame and facilitate the installation of the support 242, in this embodiment, the polygonal frame further includes an inner hexagonal frame, that is, a frame structure with an outer hexagon and an inner hexagon. The inner hexagonal frame is installed in the outer hexagonal frame, and the connection angle of the inner hexagonal frame is located at the midpoint of the frame side of the outer hexagonal frame and is fixed on the connecting rod.

[0035] The support 242 is used to connect the pressure claw 243 to the frame 241. The support 242 is evenly installed on the frame 241 along the ring line. In this embodiment, the support 242 is an I-shaped block, the upper end of which is connected to the frame 241, and the lower end is used to install the pressure claw 243. Specifically, there are three supports 242, which are evenly installed in the middle of the three frame edges of the hexagonal frame.

[0036] See also Figure 6 The pressure claw 243 is installed on the bottom surface of each support 242, and multiple pressure claws 243 are installed side by side and at intervals on the bottom surface of each support 242. The bottom surface of the pressure claw 243 has an inclined portion 2431 for pressing against the top surface of the cylinder cover. The inclined portion 2431 is tangent to the arc surface of the top end of the cylinder cover. By providing the bottom surface of the pressure claw 243 with a contact surface tangent to the top surface of the cylinder cover, the pressure claw 243 is pressed on the large diameter outer circle part of the arc-shaped dome of the cylinder cover, and will not destructively press down the large curvature dome. Moreover, each pressure claw cuts into the cylinder cover and is in an internal pressure state, which can improve the vertical pressing state of the cylinder cover and the vertical distance of pressing into the sand seal.

[0037] The wear-resistant pressure plate 244 is installed on the inclined portion 2431 of each pressure claw 243 and has good wear resistance, thereby protecting the pressure claw 243 . The wear-resistant pressure plate 244 can be replaced separately.

[0038] The cover pressing device for the walking trolley cover type high temperature annealing furnace is used to press down the cover of the steel coil on the trolley that transports the steel coil. Figure 4As shown, a trolley 31 is provided with a loading platform 32, which carries a silicon steel coil 33. A sand trough 34 is formed on the outer periphery of the loading platform 32, and the sand trough 34 contains sand. A barrel cover 35 is also provided on the trolley 31 to cover the steel coil 33, and the bottom end of the barrel cover 35 is inserted into the sand trough 34. After the cover pressing device is activated, the hydraulic cylinder 22 drives the pressure plate 24 to descend, and the pressure plate 24 presses against the top surface of the barrel cover 35. The pressure plate 24 presses against the outer periphery of the top surface of the barrel cover 35 at equal intervals along the loop line, so that the bottom end of the barrel cover 35 can be fully inserted into the sand trough 34 on the annealing trolley, thereby strengthening the sealing of the bottom end of the barrel cover 35. After sufficient downward pressure, the hydraulic cylinder 22 drives the pressure plate 24 to rise, disengage from the barrel cover 35, and the trolley 31 starts to move and enter the annealing furnace.

[0039] In summary, the cover pressing device for the step-type trolley cover-type high-temperature annealing furnace of the present invention has a simple structure, a reasonable design, and a high cover pressing efficiency. The cover pressing device is composed of a frame and a cover pressing mechanism, and is installed at the entrance section of the high-temperature annealing furnace. The cover pressing mechanism is divided into two groups, which can independently perform the corresponding cover pressing action below. The service life of the cover can be extended. The pressure claws installed on the pressure plate in the cover pressing mechanism are distributed, pressing on the large-diameter outer circle part of the arc-shaped dome of the cover, and will not destructively press down the large-curvature dome. In addition, the sand sealing effect after the cover is pressed is improved. The cover pressing mechanism is directly facing the top of the cover to be pressed, and each pressure claw cuts into the cover in an internal pressure state, which can improve the vertical pressing state of the cylinder cover and the vertical distance pressed into the sand seal.

[0040] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, is also included in the same manner.

Claims

1. A cover pressing device for a walking trolley cover-type high-temperature annealing furnace, used for pressing down a cylindrical cover of a steel coil on a trolley for transporting the steel coil, the cover pressing device comprising a frame (10) and a cover pressing mechanism (20) mounted on the frame (10), the cover pressing mechanism (20) comprising a hydraulic cylinder (22) and a pressure plate (24), the hydraulic cylinder (22) being mounted on the frame (10), the pressure plate (24) being connected to the movable end of the hydraulic cylinder (22), and the pressure plate (24) being driven to rise and fall by the hydraulic cylinder (22); characterized in that: The pressure plate (24) includes a frame (241), a support (242), and a pressure claw (243). The frame (241) is connected to the movable end of the hydraulic cylinder (22). The supports (242) are evenly installed on the frame (241) along a ring line corresponding to the outer periphery of the top of the cylinder cover at equal intervals. The pressure claw (243) is installed on each support (242). The bottom surface of the pressure claw (243) has an inclined portion (2431) that contacts the top surface of the cylinder cover and is tangent to the top surface of the cylinder cover. A plurality of pressing claws (243) are installed side by side and at intervals on the bottom surface of each support (242); The frame (241) is a polygonal frame formed by polygons of equal length, and a central disk is formed in the center of the deformable frame. Connecting rods extend from the periphery of the central disk and are respectively connected to the frame edges of the polygonal frame. The movable end of the hydraulic cylinder (22) is fixedly connected to the central disk. The cover pressing mechanism (20) comprises a frame seat (21) and a guide mechanism (23); the frame seat (21) is fixedly mounted on the frame (10); the hydraulic cylinder (22) is mounted on the frame seat (21); and the guide mechanism (23) is mounted on the frame seat (21) in parallel with the hydraulic cylinder (22).

2. The cover pressing device according to claim 1, characterized in that: The pressure plate (24) includes a wear-resistant pressure plate (244), which is mounted on the inclined portion (2431) of each pressure claw (243).

3. The cover pressing device according to claim 1, characterized in that: The frame (10) includes columns (11) and beams (12). The columns (11) are installed in the annealing furnace and on both sides near the furnace mouth. The two ends of the beam (12) are supported on the two columns (11). There are two cover pressing mechanisms (20) installed side by side on the beams (12).

4. The cover pressing device according to claim 1, characterized in that: The polygonal frame has an even number of frame sides, and the two opposite frame sides of the polygon are connected by connecting rods. Several connecting rods are overlapped and fixedly connected at the middle intersection, and the middle intersection forms the central disk.

5. The cover pressing device according to claim 1, characterized in that: The polygonal frame includes an outer hexagonal and an inner hexagonal frame structure. The inner hexagonal frame is installed in the outer hexagonal frame. The connecting corner of the inner hexagonal frame is located at the midpoint of the frame edge of the outer hexagonal frame and is fixed on the connecting rod.

6. The cover pressing device according to claim 1 or 4, characterized in that: The guide mechanism (23) comprises a guide sleeve (231) and a guide rod (232), wherein the guide sleeve (231) is fixedly mounted on the frame (10), the guide rod (232) is slidably mounted in the guide sleeve (231), and the bottom end of the guide rod (232) is connected to the connecting rod.

7. The cover pressing device according to claim 6, characterized in that: The guide mechanism (23) includes a lubricating oil nozzle (233), which is installed on the guide sleeve (231) and is used to inject lubricating oil into the guide rod (232).

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