Gear and rack meshing type steel ladle plug rod driving device

Abstract

The utility model relates to a gear and rack meshing type steel ladle plug rod driving device. The device comprises a rack which is arranged on a plug rod sliding rod in the axial direction, and the rack can float in the radial direction of the plug rod sliding rod and / or swing along the axis of the plug rod sliding rod; the driving mechanism comprises a displacement driving mechanism and a gear transmission mechanism, and the gear transmission mechanism is arranged on the radial side of the plug rod sliding rod; the gear transmission mechanism can be driven by the displacement driving mechanism to move in the direction close to the rack, so that a gear in the gear transmission mechanism is meshed with the rack, and the piston rod sliding rod is driven by the gear transmission mechanism to ascend and descend. Through the gear and rack meshing mode, vertical movement of the plug rod sliding rod can be accurately controlled in combination with the displacement driving mechanism, so that opening and closing of the molten steel outlet are accurately controlled, and stability and accuracy of the molten steel pouring amount are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of steel pouring technology, and in particular to a gear and rack meshing type steel ladle plug rod drive device. Background Technology

[0002] In a molten steel ladle, the ladle stopper is a key component. Its function is to precisely control the opening and closing of the ladle nozzle by moving it up and down, thereby regulating the flow of molten steel and ensuring the smooth progress of the pouring process. The precise operation of the stopper directly affects the control of the pouring speed, the stability of the pouring quality, and the improvement of casting production efficiency.

[0003] However, the stopper rods in molten steel ladles are currently replaced frequently. Due to differences in manufacturing processes and equipment, certain errors inevitably exist between ladles during manufacturing and assembly. These errors manifest as deviations in the relative position of the stopper rod and the casting machine's drive mechanism in the horizontal, vertical, and longitudinal directions. These deviations make it difficult for the casting machine's drive mechanism to automatically and accurately grasp and control the stopper rod, reducing the level of automation and system stability. Summary of the Invention

[0004] Therefore, this utility model provides a gear and rack meshing type steel ladle stopper rod drive device to ensure that the stopper rod can be accurately driven and controlled when positional deviation occurs, which greatly improves the accuracy of stopper rod position control.

[0005] To solve the above-mentioned technical problems, this utility model provides a gear and rack meshing type steel ladle stopper rod driving device, wherein the steel ladle stopper rod includes a stopper rod slide rod, comprising:

[0006] A rack is axially mounted on the stopper rod slide, and the rack is capable of floating radially along the stopper rod slide and / or swinging along the axis of the stopper rod slide;

[0007] The driving mechanism includes a displacement driving mechanism and a gear transmission mechanism. The gear transmission mechanism is located on the radial side of the piston rod slide. The gear transmission mechanism can move towards the rack under the drive of the displacement driving mechanism, so that the gear in the gear transmission mechanism meshes with the rack, and drives the piston rod slide to rise and fall through the gear transmission mechanism.

[0008] In one embodiment of this utility model, the rack is connected to a sleeve, the sleeve including a through hole for the stopper rod slide to pass through, the diameter of the through hole being larger than the diameter of the stopper rod slide.

[0009] In one embodiment of this utility model, an upper stop block and a lower stop block are respectively arranged axially on the stop rod slide and located on both sides of the sleeve axially, and the upper stop block and the lower stop block can contact the two ends of the sleeve axially.

[0010] In one embodiment of this utility model, the upper stop block and / or the lower stop block have hook plates extending from their side ends, which can contact the sleeve when the rack swings.

[0011] In one embodiment of this utility model, the displacement driving mechanism includes a swing mechanism, the swing mechanism includes a base, an electric cylinder and a swing seat, the swing seat is used to install the gear transmission mechanism and one end is rotatably connected to the base, the bottom end of the electric cylinder is rotatably connected to the base and the telescopic end is rotatably connected to the swing seat.

[0012] In one embodiment of this utility model, a first trunnion is provided between the bottom end of the electric cylinder and the base, and a second trunnion is provided between the telescopic end of the electric cylinder and the swing seat.

[0013] In one embodiment of this utility model, the gear transmission mechanism further includes a servo geared motor and an electromagnetic clutch. A transmission shaft is mounted on the gear, and bearings with mounting seats are provided at both ends of the transmission shaft. The electromagnetic clutch is installed between the transmission shaft and the servo geared motor to realize the connection and disconnection of power between the transmission shaft and the servo geared motor.

[0014] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0015] The present invention discloses a gear and rack meshing type molten steel ladle stopper rod driving device, which, through gear and rack meshing and combined with a displacement driving mechanism, can precisely control the up and down movement of the stopper rod slide, thereby accurately controlling the opening and closing of the molten steel outlet and ensuring the stability and accuracy of the molten steel pouring volume.

[0016] The rack of this invention can float radially and swing axially, automatically adjusting the meshing position. This effectively adapts to deviations caused by manufacturing and assembly errors of the ladle, avoiding poor meshing of the gear and rack due to non-parallelism and improving meshing stability. Furthermore, the rigid meshing of the gear and rack further enables precise control of the lifting rod's raising and lowering. Attached Figure Description

[0017] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0018] Figure 1This is a schematic diagram of the overall structure of the gear and rack meshing steel ladle plug rod drive device of this utility model.

[0019] Figure 2 This is a partial structural schematic diagram of the gear and rack meshing steel ladle plug rod drive device of this utility model.

[0020] Figure 3 This is a schematic diagram of the drive mechanism of this utility model.

[0021] Explanation of reference numerals on the accompanying drawings:

[0022] 1. Plug rod / slide bar;

[0023] 2. Rack; 21. Sleeve;

[0024] 3. Displacement drive mechanism; 31. Base; 32. Electric cylinder; 33. Swing seat; 34. First trunnion; 35. Second trunnion;

[0025] 4. Gear transmission mechanism; 41. Gear; 42. Servo geared motor; 43. Electromagnetic clutch; 44. Drive shaft; 45. Mounted bearing;

[0026] 5. Upper stop block;

[0027] 6. Lower stop block;

[0028] 7. Hook board;

[0029] 8. Casting machine lateral movement vehicle. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0031] In this utility model, when directions (up, down, left, right, front, and back) are described, it is only for the convenience of describing the technical solution of this utility model, and does not indicate or imply that the technical features referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0032] In this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the stated number; "above," "below," "within," etc. are understood to include the stated number. In the description of this utility model, if "first" or "second" is used, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0033] In this utility model, unless otherwise explicitly defined, terms such as "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; a fixed connection, a detachable connection, or an integrally formed connection; a mechanical connection, an electrical connection, or a connection capable of mutual communication; or the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model based on the specific content of the technical solution.

[0034] Reference Figure 1 As shown, this utility model discloses a gear and rack meshing type ladle stopper rod driving device, wherein the ladle stopper rod includes a stopper rod slide 1, comprising:

[0035] A rack 2 is axially mounted on the stopper rod slide 1, and the rack 2 is capable of floating radially along the stopper rod slide 1 and / or swinging along the axis of the stopper rod slide 1;

[0036] The driving mechanism includes a displacement driving mechanism 3 and a gear transmission mechanism 4. The gear transmission mechanism 4 is located on the radial side of the piston rod slide 1. The gear transmission mechanism 4 can move towards the rack 2 under the drive of the displacement driving mechanism 3, so that the gear 41 in the gear transmission mechanism 4 meshes with the rack 2, and drives the piston rod slide 1 to rise and fall through the gear transmission mechanism 4.

[0037] With the above settings, rack 2 can float radially and swing axially. The swing design can avoid the problem of rack 2 and gear 41 not being parallel, improve meshing stability, and effectively adapt to the deviation of the position of plug rod slide 1 caused by ladle manufacturing process and assembly error.

[0038] In one embodiment, refer to Figure 2 As shown, the rack 2 is connected to a sleeve 21, which includes a through hole for the stopper rod slide 1 to pass through. The diameter of the through hole is larger than the diameter of the stopper rod slide 1. This facilitates the installation of the rack 2 and allows the rack 2 to float and swing on the stopper rod slide 1, providing greater fault tolerance.

[0039] Reference Figure 2 As shown, it also includes an upper stop block 5 and a lower stop block 6 respectively arranged axially on the stop rod slide 1 and located on both sides of the sleeve 21. The upper stop block 5 and the lower stop block 6 can contact the two ends of the sleeve 21 axially.

[0040] In one embodiment, the upper stop 5 and / or the lower stop 6 have hook plates 7 extending from their sides that can contact the sleeve 21 when the rack 2 swings.

[0041] The upper stop 5 and the lower stop 6 effectively limit the axial displacement range of the rack 2, preventing the rack 2 from moving excessively or disengaging from the meshing range of the gear 41. The hook plate 7 is designed to provide a limit when the rack 2 swings, so that the rack 2 meshes better with the gear 41.

[0042] Specifically, a hook plate 7 is only provided on the upper stop block 5. The upper stop block 5 is fixed to the stop rod slide 1 by a through pin or bolt, and the hook plate 7 is at a certain distance from the sleeve 21. The lower stop block 6 can utilize the existing parts on the stop rod slide 1 (such as the top block on the manual lifting mechanism), reducing additional processing costs.

[0043] In one embodiment, the displacement driving mechanism 3 includes a swing mechanism, which includes a base 31, an electric cylinder 32, and a swing seat 33. The swing seat 33 is used to mount the gear transmission mechanism 4 and one end is rotatably connected to the base 31. The bottom end of the electric cylinder 32 is rotatably connected to the base 31, and the telescopic end is rotatably connected to the swing seat 33.

[0044] In one embodiment, refer to Figure 3 As shown, a first trunnion 34 is provided between the bottom end of the electric cylinder 32 and the base 31, and a second trunnion 35 is provided between the telescopic end of the electric cylinder 32 and the swing seat 33.

[0045] Reference Figure 3 As shown, the gear transmission mechanism 4 also includes a servo reduction motor 42 and an electromagnetic clutch 43. A transmission shaft 44 is mounted on the gear 41. Bearings 45 with seats are provided at both ends of the transmission shaft 44. The electromagnetic clutch 43 is installed between the transmission shaft 44 and the servo reduction motor 42 to realize the connection and disconnection of power between the transmission shaft 44 and the servo reduction motor 42.

[0046] Understandably, the servo geared motor 42 provides stable torque and appropriate output speed to drive the gear 41. The gear 41 is fixedly mounted on the drive shaft 44, typically connected by a keyway, clamping device, or bolts to ensure synchronous rotation with the drive shaft 44. Both ends of the drive shaft 44 are supported by mounted bearings 45, which are fixed to the base or frame 31, providing stable rotational support while reducing friction and vibration. The gear 41 meshes with the rack 2 to achieve transmission. When the gear 41 rotates, the rack 2 moves in a linear direction, thus completing the linear motion output. An electromagnetic clutch 43 is installed between the gear 41 and the servo geared motor 42 or between the gear 41 and the drive shaft 44 to control the power transmission of the gear 41. When the electromagnetic clutch 43 disengages, the gear 41 is disconnected from the drive shaft 44 from the power system, allowing the gear 41 to rotate freely without being driven by the servo geared motor 42. When the electromagnetic clutch 43 is engaged, the gear 41 is powered to the transmission shaft 44, and the servo reduction motor 42 drives the gear 41 to rotate, thereby driving the rack 2 to move.

[0047] During operation, gear 41 in gear transmission mechanism 4 is in a non-meshing state, electromagnetic clutch 43 is disengaged, and gear 41 is disengaged from servo reduction motor 42. Electric cylinder 32 drives swing seat 33, moving gear transmission mechanism 4 to a position close to rack 2. Electromagnetic clutch 43 engages, servo reduction motor 42 drives gear 41 to rotate, and after gear 41 meshes with rack 2, it drives rack 2 to move in a straight line. Rack 2 is connected to stop rod slide 1 via sleeve 21. While gear 41 drives rack 2 in linear motion, it simultaneously drives stop rod slide 1 to move up and down, thereby completing the precise opening and closing operation of the molten steel outlet and regulating the flow rate of molten steel.

[0048] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A gear and rack meshing type steel ladle stopper rod driving device, wherein the steel ladle stopper rod includes a stopper rod slide (1), characterized in that, include: A rack (2) is axially mounted on the stopper rod slide (1), and the rack (2) is capable of floating radially along the stopper rod slide (1) and / or swinging along the axis of the stopper rod slide (1); The driving mechanism includes a displacement driving mechanism (3) and a gear transmission mechanism (4). The gear transmission mechanism (4) is located on the radial side of the piston rod slide (1). The gear transmission mechanism (4) can move towards the rack (2) under the drive of the displacement driving mechanism (3) so that the gear (41) in the gear transmission mechanism (4) meshes with the rack (2) and drives the piston rod slide (1) to rise and fall through the gear transmission mechanism (4).

2. The gear and rack meshing type steel ladle plug rod driving device according to claim 1, characterized in that, The rack (2) is connected to a sleeve (21), the sleeve (21) including a through hole through which the stopper slide (1) passes, the diameter of the through hole being larger than the diameter of the stopper slide (1).

3. The gear and rack meshing type steel ladle plug rod driving device according to claim 2, characterized in that, It also includes an upper stop block (5) and a lower stop block (6) respectively arranged axially on the stop rod slide (1) and located on both sides of the sleeve (21), the upper stop block (5) and the lower stop block (6) being able to contact the two ends of the sleeve (21) axially.

4. The gear and rack meshing type steel ladle plug rod driving device according to claim 3, characterized in that, The upper stop (5) and / or the lower stop (6) have hook plates (7) extending from their sides that can contact the sleeve (21) when the rack (2) swings.

5. The gear and rack meshing type steel ladle plug rod driving device according to claim 1, characterized in that, The displacement driving mechanism (3) includes a swing mechanism, which includes a base (31), an electric cylinder (32) and a swing seat (33). The swing seat (33) is used to install the gear transmission mechanism (4) and one end is rotatably connected to the base (31). The bottom end of the electric cylinder (32) is rotatably connected to the base (31) and the telescopic end is rotatably connected to the swing seat (33).

6. The gear and rack meshing type molten steel ladle plug rod driving device according to claim 5, characterized in that, A first trunnion (34) is provided between the bottom end of the electric cylinder (32) and the base (31), and a second trunnion (35) is provided between the telescopic end of the electric cylinder (32) and the swing seat (33).

7. The gear and rack meshing type molten steel ladle plug rod driving device according to claim 1, characterized in that, The gear transmission mechanism (4) also includes a servo geared motor (42) and an electromagnetic clutch (43). A transmission shaft (44) is mounted on the gear (41). Bearings (45) are provided at both ends of the transmission shaft (44). The electromagnetic clutch (43) is installed between the transmission shaft (44) and the servo geared motor (42) to realize the connection and disconnection of power between the transmission shaft (44) and the servo geared motor (42).

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