Hydraulic cylinder driving protection mechanism for sliding nozzle

Abstract

The utility model discloses a hydraulic cylinder driving protection mechanism for a sliding nozzle, which comprises a steel ladle sliding nozzle, a fixed bracket is arranged at the top of the steel ladle sliding nozzle, a heat insulation box body is arranged on the fixed bracket, an opening is arranged at the top of the heat insulation box body, a top cover is movably connected onto the opening, and a hydraulic cylinder is arranged on the top cover. The center of the bottom of the heat insulation box body communicates with a fixed cylinder, a telescopic sleeve is installed at the end, away from the heat insulation box body, of the fixed cylinder, a sealing piece is installed at the end, away from the fixed cylinder, of the telescopic sleeve, a hydraulic cylinder is arranged in the heat insulation box body, and a connecting rod is arranged on a piston rod of the hydraulic cylinder. The end, away from the hydraulic cylinder, of the connecting rod is connected with a sliding block in a steel ladle sliding nozzle. The hydraulic cylinder has the advantages that the heat insulation and cooling effects on the hydraulic cylinder are effectively guaranteed, the hydraulic cylinder can be used in a high-temperature environment, the service life of the hydraulic cylinder is prolonged, the use cost is reduced, the hydraulic cylinder can be conveniently mounted and dismounted, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ladle sliding nozzle mechanisms, in particular to a hydraulic cylinder driven protection mechanism for a sliding nozzle. Background Art

[0002] Generally, the driving device of the sliding gate mechanism of the ladle is mainly composed of a bracket, a connecting rod, a hydraulic cylinder and related accessories. The function of the bracket is to install the hydraulic cylinder and support and protect the connecting rod. The connecting rod is installed in the bracket. One end of the connecting rod is connected to the sliding part of the sliding gate mechanism of the ladle, and the other end is connected to the piston rod of the hydraulic cylinder. The hydraulic cylinder drives the connecting rod to drive the sliding part of the sliding gate mechanism of the ladle to move back and forth, thereby realizing the opening and closing of the sliding gate mechanism of the ladle.

[0003] The working environment temperature of the ladle sliding nozzle mechanism is relatively high, and the hydraulic cylinder has a maximum working temperature. If this temperature is exceeded, the cylinder sealing part, cylinder body, piston rod, etc. will be seriously damaged. The hydraulic cylinder is easily damaged, which reduces the service life and increases the cost of use.

[0004] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Utility Model Content

[0005] The utility model aims to solve the above problems and designs a hydraulic cylinder driven protection mechanism for a sliding water gate.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A hydraulic cylinder driven protection mechanism for a sliding water gate comprises a ladle sliding water gate, a fixed bracket is installed on the top of the ladle sliding water gate, an insulating box is installed on the fixed bracket, an opening is provided on the top of the insulating box, a top cover is movably connected to the opening, a fixed cylinder is connected at the center of the bottom of the insulating box, an end of the fixed cylinder away from the insulating box passes through the fixed bracket and extends out of the fixed bracket, a telescopic sleeve is installed on the end of the fixed cylinder away from the insulating box, a sealing member is installed on the end of the telescopic sleeve away from the fixed cylinder, a hydraulic cylinder is provided in the insulating box, a connecting rod is provided on the piston rod of the hydraulic cylinder, the connecting rod passes through the sealing member and extends out of the telescopic sleeve, and the end of the connecting rod away from the hydraulic cylinder is connected to a sliding block in the ladle sliding water gate.

[0008] Furthermore, a fixing through hole is provided at the center of the top cover, and two vertical rib plates are installed on the top cover, and the two vertical rib plates are respectively located on the left and right sides of the fixing through hole, and the top end of the hydraulic cylinder extends through the fixing through hole, and pins are provided on the two vertical rib plates, and the hydraulic cylinder is fixed between the two vertical rib plates through the pins.

[0009] Furthermore, a rotary bearing is installed on the piston rod of the hydraulic cylinder, a threaded sleeve is provided on the rotary bearing, the inner ring of the rotary bearing is fixedly connected to the piston rod of the hydraulic cylinder, the outer ring of the rotary bearing is fixedly connected to the threaded sleeve, an external thread is provided on the top end of the connecting rod, and the connecting rod is threadedly connected to the threaded sleeve via the external thread.

[0010] Furthermore, coolant is provided in the heat-insulating box body, the fixed cylinder and the telescopic sleeve, the liquid level of the coolant does not overflow the piston rod of the hydraulic cylinder, and a suction fan is provided on one side of the top of the top cover.

[0011] Furthermore, the cylinder body diameter of the hydraulic cylinder is larger than the diameter of the fixed through hole, a sealing gasket is provided on the top of the cylinder body of the hydraulic cylinder, a sealing ring is provided on the piston rod end of the hydraulic cylinder, and the diameter of the threaded sleeve is smaller than the diameter of the fixed cylinder.

[0012] Furthermore, the heat-insulating box body is made of heat-insulating material, and the fixed bracket, fixed cylinder, telescopic sleeve and connecting rod are made of heat-resistant material.

[0013] Compared with the prior art, this technical solution has the following beneficial effects:

[0014] The connecting rod and the piston rod of the hydraulic cylinder are wrapped with coolant, and the coolant can cool the heat insulation box to prevent heat from being transferred to the hydraulic cylinder through the heat insulation box and the connecting rod. The hot air is discharged from the heat insulation box by the suction fan, which effectively ensures the heat insulation and cooling effect of the hydraulic cylinder, reduces the temperature of the hydraulic cylinder, and enables the hydraulic cylinder to be used in a high temperature environment, thereby increasing the service life of the hydraulic cylinder and reducing the use cost;

[0015] The top of the hydraulic cylinder is fixed between two vertical rib plates by a pin shaft. Removing the pin shaft from the vertical rib plate makes it convenient to remove the top cover from the opening, and rotating the threaded sleeve through the rotary bearing to disconnect the threaded sleeve from the external thread on the connecting rod, so that the hydraulic cylinder can be removed from the heat insulation box body, installed and disassembled, and inspected and replaced, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a structural schematic diagram of a hydraulic cylinder driven protection mechanism for a sliding water gate.

[0017] Figure 2 It is a cross-sectional view of the fixed bracket and the insulation box.

[0018] Figure 3 It is an enlarged cross-sectional view of the insulation box.

[0019] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0020] In the figure: 1. sliding water outlet of ladle; 2. fixed bracket; 3. heat-insulating box; 4. opening; 5. top cover; 6. fixed cylinder; 7. telescopic sleeve; 8. sealing element; 9. hydraulic cylinder; 10. connecting rod; 11. fixed through hole; 12. vertical rib plate; 13. pin shaft; 14. rotating bearing; 15. threaded sleeve; 16. external thread; 17. suction fan; 18. sealing gasket; 19. sealing ring. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0023] The utility model provides Figure 1-4 The hydraulic cylinder driven protection mechanism for a sliding water gate shown in the figure comprises a ladle sliding water gate 1, a fixed bracket 2 is installed on the top of the ladle sliding water gate 1, an insulating box body 3 is installed on the fixed bracket 2, an opening 4 is provided on the top of the insulating box body 3, a top cover 5 is movably connected to the opening 4, a fixed cylinder 6 is connected at the center of the bottom of the insulating box body 3, an end of the fixed cylinder 6 away from the insulating box body 3 passes through and extends out of the fixed bracket 2, a telescopic sleeve 7 is installed on the end of the fixed cylinder 6 away from the insulating box body 3, a sealing member 8 is installed on the end of the telescopic sleeve 7 away from the fixed cylinder 6, a hydraulic cylinder 9 is arranged in the insulating box body 3, a connecting rod 10 is arranged on the piston rod of the hydraulic cylinder 9, the connecting rod 10 passes through the sealing member 8 and extends out of the telescopic sleeve 7, and the end of the connecting rod 10 away from the hydraulic cylinder 9 is connected to the sliding block in the ladle sliding water gate 1, a coolant is arranged in the insulating box body 3, the fixed cylinder 6 and the telescopic sleeve 7, and the liquid level of the coolant does not overflow the piston rod of the hydraulic cylinder 9, a suction fan 17 is arranged on one side of the top of the top cover 5,

[0024] When the ladle sliding water outlet 1 is opened or closed, the hydraulic cylinder 9 drives the slider in the ladle sliding water outlet 1 to move through the piston rod and the connecting rod 10. When the connecting rod 10 moves, the connecting rod 10 drives the telescopic sleeve 7 to be extended and retracted through the sealing member 8. The coolant in the telescopic sleeve 7 is sealed by the sealing member 8 to prevent leakage of the coolant. The coolant wraps the connecting rod 10 and the piston rod of the hydraulic cylinder 9, and the coolant can cool the insulation box 3 to prevent heat from being transferred to the hydraulic cylinder 9 through the insulation box 3 and the connecting rod 10. The hot air is discharged from the insulation box 3 through the suction fan 17, thereby effectively ensuring the insulation and cooling effect of the hydraulic cylinder 9, reducing the temperature of the hydraulic cylinder 9, and allowing the hydraulic cylinder 9 to be used in a high temperature environment, thereby increasing the service life of the hydraulic cylinder 9 and reducing the cost of use.

[0025] Refer to the instruction manual Figure 2 And the instruction manual Figure 3 A fixing through hole 11 is provided at the center of the top cover 5, and two vertical rib plates 12 are installed on the top cover 5. The two vertical rib plates 12 are respectively located on the left and right sides of the fixing through hole 11. The top end of the hydraulic cylinder 9 extends through the fixing through hole 11. A pin shaft 13 is provided on the two vertical rib plates 12. The hydraulic cylinder 9 is fixed between the two vertical rib plates 12 through the pin shaft 13. A rotary bearing 14 is installed on the piston rod of the hydraulic cylinder 9. The rotary bearing 14 is provided with a threaded sleeve 15. The inner ring of the rotary bearing 14 is fixedly connected to the piston rod of the hydraulic cylinder 9, and the outer ring of the rotary bearing 14 is fixedly connected to the threaded sleeve 15. An external thread 16 is provided on the top end of the connecting rod 10, and the connecting rod 10 is threadedly connected to the threaded sleeve 15 through the external thread 16.

[0026] The top end of the hydraulic cylinder 9 extends through the fixed through hole 11, and the hydraulic cylinder 9 is fixed between the two vertical rib plates 12 by a pin shaft 13. The pin shaft 13 is removed from the vertical rib plate 12, which facilitates the removal of the top cover 5 from the opening 4, and the threaded sleeve 15 is rotated through the rotary bearing 14 to disconnect the threaded sleeve 15 from the external thread 16 on the connecting rod 10, so that the hydraulic cylinder 9 can be removed from the heat insulation box 3, the installation and disassembly of the hydraulic cylinder 9 can be conveniently performed, and the maintenance and replacement of the hydraulic cylinder 9 can be conveniently performed, thereby improving work efficiency.

[0027] Refer to the instruction manual Figure 3 The diameter of the cylinder body of the hydraulic cylinder 9 is larger than the diameter of the fixed through hole 11. A sealing gasket 18 is provided on the top of the cylinder body of the hydraulic cylinder 9. A sealing ring 19 is provided on the piston rod end of the hydraulic cylinder 9. The diameter of the threaded sleeve 15 is smaller than the diameter of the fixed cylinder 6.

[0028] The top of the cylinder body of the hydraulic cylinder 9 and the fixed through hole 11 are sealed by a sealing gasket 18, and the piston rod end of the hydraulic cylinder 9 is sealed by a sealing ring 19, so as to prevent coolant from entering the hydraulic cylinder 9, prevent corrosion damage caused by liquid entering the hydraulic cylinder 9, and improve the service life.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hydraulic cylinder driven protection mechanism for a sliding nozzle, comprising a ladle sliding nozzle (1), a fixed bracket (2) being mounted on the top of the ladle sliding nozzle (1), a heat insulating box (3) being mounted on the fixed bracket (2), characterized in that: The thermal insulation box (3) is provided with an opening (4) at the top, and a top cover (5) is movably connected to the opening (4). The center of the bottom of the thermal insulation box (3) is connected to a fixed cylinder (6). The end of the fixed cylinder (6) away from the thermal insulation box (3) penetrates through the fixed bracket (2). The end of the fixed cylinder (6) away from the thermal insulation box (3) is installed with a telescopic sleeve (7). The end of the telescopic sleeve (7) away from the fixed cylinder (6) is installed with a sealing member (8). A hydraulic cylinder (9) is provided in the thermal insulation box (3). A connecting rod (10) is provided on the piston rod of the hydraulic cylinder (9). The connecting rod (10) penetrates through the sealing member (8) and extends out of the telescopic sleeve (7). The end of the connecting rod (10) away from the hydraulic cylinder (9) is connected to a slider in the ladle sliding water outlet (1).

2. A hydraulic cylinder drive protection mechanism for a sliding water gate according to claim 1, characterized in that: A fixing through hole (11) is provided at the center of the top cover (5), and two vertical rib plates (12) are installed on the top cover (5). The two vertical rib plates (12) are respectively located on the left and right sides of the fixing through hole (11). The top end of the hydraulic cylinder (9) extends through the fixing through hole (11). Pins (13) are provided on the two vertical rib plates (12), and the hydraulic cylinder (9) is fixed between the two vertical rib plates (12) via the pins (13).

3. A hydraulic cylinder driving protection mechanism for a sliding water gate according to claim 1, characterized in that: A rotary bearing (14) is mounted on the piston rod of the hydraulic cylinder (9), a threaded sleeve (15) is provided on the rotary bearing (14), an inner ring of the rotary bearing (14) is fixedly connected to the piston rod of the hydraulic cylinder (9), an outer ring of the rotary bearing (14) is fixedly connected to the threaded sleeve (15), an external thread (16) is provided at the top end of the connecting rod (10), and the connecting rod (10) is threadedly connected to the threaded sleeve (15) via the external thread (16).

4. A hydraulic cylinder driving protection mechanism for a sliding water gate according to claim 1, characterized in that: Cooling liquid is provided in the heat-insulating box body (3), the fixed cylinder (6) and the telescopic sleeve (7); the liquid level of the cooling liquid does not exceed the piston rod of the hydraulic cylinder (9); and a suction fan (17) is provided on one side of the top of the top cover (5).

5. A hydraulic cylinder driving protection mechanism for a sliding water gate according to claim 3, characterized in that: The cylinder body diameter of the hydraulic cylinder (9) is larger than the diameter of the fixed through hole (11), a sealing gasket (18) is provided on the top of the cylinder body of the hydraulic cylinder (9), a sealing ring (19) is provided on the piston rod end of the hydraulic cylinder (9), and the diameter of the threaded sleeve (15) is smaller than the diameter of the fixed cylinder (6).

6. A hydraulic cylinder driving protection mechanism for a sliding water gate according to claim 1, characterized in that: The heat-insulating box body (3) is made of a heat-insulating material, and the fixed bracket (2), the fixed cylinder (6), the telescopic sleeve (7), and the connecting rod (10) are made of a heat-resistant material.

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