Tundish molten steel sampling device
The sampling device driven by a lead screw motor utilizes a combination of a screw, nut, and L-shaped rod to automate the movement of the molten steel sampling cup in the tundish. This solves the safety hazards caused by manual operation in existing technologies and improves the safety and convenience of operation.
Patent Information
- Application Number
- CN202520177922.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-05
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-02-05
AI Technical Summary
The existing tundish molten steel sampling device poses a safety hazard because workers are easily exposed to heat when installing or removing the sampling cup.
The sampling device, driven by a lead screw motor, moves the sampling cup through a combination of a screw, nut, column, and L-shaped rod, avoiding direct manual operation and reducing the impact of heat radiation.
It improves the safety and convenience of operation and avoids the risk of staff operating directly in high-temperature environments.
Smart Images

Figure CN223883242U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The patent relates to the technical field of molten steel sampling, in particular to a tundish molten steel sampling device. BACKGROUND
[0002] The tundish is a refractory container used in the short process of steelmaking, which first receives the molten steel poured from the ladle, and then distributes it to each crystallizer through the tundish nozzle. The bottom of the tundish can inject argon into its interior through the ladle air brick to improve the quality of the molten steel. In order to detect the quality of the molten steel, a sampling device is needed to sample the molten steel in the tundish. The existing sampling device is composed of a telescopic mechanism and a sampling cup arranged on the upper side of the tundish. When the sampling cup at the bottom end of the telescopic mechanism needs to be installed or removed, the worker is easily roasted, which has safety hazards. Therefore, we propose a tundish molten steel sampling device. CONTENT OF THE UTILITY MODEL
[0003] In view of the deficiencies of the prior art, the purpose of the patent is to provide a tundish molten steel sampling device. The patent is installed with a lead screw motor at the bottom of the top plate, the lead screw motor is connected with a nut through a screw rod, the bottom of the nut is connected with a stand column, the stand column is slidably installed with a stand rod, the bottom end of the stand rod is installed with a sampling cup, an L-shaped rod is installed on the side wall of the stand column. The lead screw motor can drive the sampling cup to move left and right, the L-shaped rod facilitates the movement operation of the sampling cup, avoids the roasting of personnel operation, and is convenient to operate.
[0004] The technical solution adopted by the patent to solve its technical problems is: a tundish molten steel sampling device, comprising a top plate, a slide is arranged at the bottom of the top plate, a lead screw motor is fixedly installed at the right end of the bottom of the top plate, a screw rod is fixedly installed at the left end of the rotating shaft of the lead screw motor, a nut is screwed on the side wall of the screw rod, a sliding block is fixedly installed at the top of the nut, and the sliding block is slidably installed in the slide;
[0005] The bottom of the nut is fixedly installed with a connecting plate, the bottom of the connecting plate is fixedly installed with a stand column, the bottom end of the stand column is provided with a cylindrical groove, the right wall of the cylindrical groove is provided with a rectangular opening, a stand rod is slidably installed on the inner side wall of the cylindrical groove, the bottom end of the stand rod is installed with a sampling cup, one end of an L-shaped rod is fixedly installed on the side wall right end of the stand rod, and the other end of the L-shaped rod extends to the outside through the rectangular opening.
[0006] Further, the side wall of the stand rod is provided with a wheel groove at the front and rear ends, the inner side wall of the cylindrical groove is provided with a mounting groove at the front and rear ends, a roller is connected through an axis in the mounting groove, the roller is rollingly installed in the wheel groove, and the side wall of the stand rod is not in contact with the inner side wall of the cylindrical groove.
[0007] Further, the top end of the wheel groove is in an open state.
[0008] Further, the front and back length of the L-shaped rod is less than the internal front and back width of the rectangular port, and the L-shaped rod does not contact the inner side wall of the rectangular port.
[0009] Further, the side wall right end of the stand is provided with a clamping groove, the outer side wall right end of the stand is fixedly installed with a circular ring at the lower side, a T-shaped column is rotatably installed in the circular ring, a clamping plate is fixedly installed at the left end lower side of the T-shaped column, the height of the clamping plate matches the up and down height of the clamping groove, and the left end of the clamping plate is clamped in the clamping groove.
[0010] Further, the top end of the stand is attached to the internal top wall of the cylindrical groove.
[0011] The beneficial effects of the present patent are:
[0012] 1. The present patent is provided with a lead screw motor at the bottom of the top plate, the lead screw motor is connected with a nut through a screw rod, the bottom of the nut is connected with a stand, a stand rod is slidably installed in the stand, a sampling cup is installed at the bottom end of the stand rod, an L-shaped rod is installed on the side wall of the stand, the sampling cup can be moved left and right by the lead screw motor, the L-shaped rod facilitates the movement of the sampling cup, and personnel operation is avoided during baking, which is convenient to operate. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is a structural schematic diagram of the present patent.
[0014] Figure 2 is a perspective view of the stand of the present patent.
[0015] Figure 3 is a sectional view of the stand of the present patent.
[0016] Figure 4 is a partial structural schematic diagram of the present patent.
[0017] BRIEF DESCRIPTION OF DRAWINGS: 1 top plate, 2 lead screw motor, 3 screw rod, 4 nut, 5 connecting plate, 6 stand, 7 cylindrical groove, 8 rectangular port, 9 stand rod, 10 sampling cup, 11 L-shaped rod, 12 wheel groove, 13 mounting groove, 14 roller, 15 clamping groove, 16 circular ring, 17 T-shaped column, 18 clamping plate. DETAILED DESCRIPTION
[0018] The present patent will be further described below in conjunction with specific embodiments, and it should be understood that these embodiments are only used to illustrate the present patent and not to limit the scope of the present patent. In addition, it should be understood that after reading the content taught by the present patent, those skilled in the art can make various modifications or modifications to the present patent, and these equivalent forms also fall within the scope defined by the claims attached to the application.
[0019] See Figure 1 ,Figure 2 、 Figure 3 and Figure 4 The patent structure diagram is a molten steel sampling device for a tundish, which comprises a top plate 1, the bottom of the top plate 1 is provided with a sliding channel, the bottom right end of the top plate 1 is fixedly installed with a lead screw motor 2, the left end of the rotating shaft of the lead screw motor 2 is fixedly installed with a screw rod 3, the side wall of the screw rod 3 is screwed with a nut 4, the top of the nut 4 is fixedly installed with a sliding block, and the sliding block is slidingly installed in the sliding channel.
[0020] The bottom of the nut 4 is fixedly installed with a connecting plate 5, the bottom of the connecting plate 5 is fixedly installed with a stand column 6, the bottom end of the stand column 6 is provided with a cylindrical groove 7, the right wall of the cylindrical groove 7 is provided with a rectangular port 8, the inner side wall of the cylindrical groove 7 is slidingly installed with a stand rod 9, the bottom end of the stand rod 9 is installed with a sampling cup 10, the right end of the side wall of the stand rod 9 is fixedly installed with one end of an L-shaped rod 11, and the other end of the L-shaped rod 11 extends to the outside through the rectangular port 8.
[0021] The top plate 1 can be installed on the inner roof of the factory building through bolts.
[0022] Specifically, the front and rear ends of the side wall of the stand rod 9 are provided with wheel grooves 12, the front and rear ends of the inner side wall of the cylindrical groove 7 are provided with installation grooves 13, the installation grooves 13 are connected with rollers 14 through rotating shafts, the rollers 14 are rollingly installed in the wheel grooves 12, and the side wall of the stand rod 9 is not in contact with the inner side wall of the cylindrical groove 7.
[0023] For example, the side wall of the stand rod 9 directly slides with the inner side wall of the cylindrical groove 7, when the staff moves the stand rod 9 downward through the L-shaped rod 11, the side wall of the stand rod 9 is easy to be stuck by friction, and the rolling installation of the rollers 14 in the wheel grooves 12 can increase the smooth effect of the upward and downward movement of the stand rod 9, and avoid being stuck.
[0024] Specifically, the top end of the wheel groove 12 is in an open state.
[0025] The top end of the wheel groove 12 is in an open state, which facilitates the installation of the top end of the stand rod 9 in the cylindrical groove 7.
[0026] Specifically, the front and rear lengths of the L-shaped rod 11 are less than the front and rear widths of the inner side wall of the rectangular port 8, and the L-shaped rod 11 is not in contact with the inner side wall of the rectangular port 8.
[0027] Specifically, the right end of the side wall of the stand rod 9 is provided with a clamping groove 15, the right end of the outer side wall of the stand column 6 is fixedly installed with a circular ring 16, the circular ring 16 is rotatably installed with an I-shaped column 17, the left end of the I-shaped column 17 is fixedly installed with a clamping plate 18, the height of the clamping plate 18 matches the up and down height of the clamping groove 15, and the left end of the clamping plate 18 is clamped in the clamping groove 15.
[0028] The I-shaped column 17 can rotate on the circular ring 16.
[0029] The card plate 18 can be clamped in the card slot 15 through the left end, and at this time, the position of the vertical rod 9 is positioned.
[0030] Specifically, the top end of the vertical rod 9 is attached to the inner top wall of the cylindrical slot 7.
[0031] By attaching the top end of the vertical rod 9 to the inner top wall of the cylindrical slot 7, the card plate 18 is just in the position corresponding to the card slot 15 at this time.
[0032] Working principle: as Figure 1 shown, first rotate the work column 17 to make the card plate 18 separate from the card slot 15, the worker holds the L-shaped rod 11 without moving the vertical rod 9 downward, drives the nut 4 to move left through the lead screw motor 2 until the sampling cup 10 moves to the upper side of the tundish, and moves the vertical rod 9 downward through the L-shaped rod 11 to make the sampling cup 10 enter the molten steel for sampling.
[0033] It should be noted that the device structure and the drawings of the patent mainly describe the principle of the patent, and the setting of the power mechanism, the power supply system and the control system of the device is not completely described in the technical principle of the design, and under the premise that the above-mentioned technical personnel understands the principle of the patent, the specific.
[0034] The patent is provided with a lead screw motor at the bottom of the top plate, the lead screw motor is connected with a nut through a screw rod, the bottom of the nut is connected with a stand column, the stand column is slidably installed with a vertical rod, the bottom end of the vertical rod is installed with a sampling cup, and the side wall of the stand column is installed with an L-shaped rod. The lead screw motor can drive the sampling cup to move left and right, and the L-shaped rod can conveniently move the sampling cup, so as to avoid the personnel operation from being baked and the operation is convenient.
[0035] In the description of the patent, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the patent and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation; at the same time, unless otherwise clearly specified and limited, the terms "setting", "mounting", "connecting", "fixed mounting" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication between two elements or the interaction relationship between two elements, unless otherwise clearly limited, and the specific meaning of the above terms in the patent can be understood by the person skilled in the art according to the specific situation.
[0036] While embodiments of the present patent have been shown and described, it is to be understood that the embodiments can be varied, modified, substituted and otherwise changed by those skilled in the art without departing from the principles and spirit of the present patent, the scope of which is to be determined by the following claims and their equivalents.
Claims
1. A tundish molten steel sampling device characterized by: Including the top plate (1), the bottom of the top plate (1) is provided with a slide, the bottom right end of the top plate (1) is fixedly installed with a lead screw motor (2), the rotating shaft left end of the lead screw motor (2) is fixedly installed with a screw rod (3), the sidewall of the screw rod (3) is screwed with a nut (4), the top of the nut (4) is fixedly installed with a sliding block, the sliding block is slidingly installed in the slide; The bottom of the nut (4) is fixedly installed with a connecting plate (5), the bottom of the connecting plate (5) is fixedly installed with a stand column (6), the bottom end of the stand column (6) is provided with a cylindrical groove (7), the right wall of the cylindrical groove (7) is provided with a rectangular opening (8), the inner side wall of the cylindrical groove (7) is slidingly installed with a stand rod (9), the bottom end of the stand rod (9) is installed with a sampling cup (10), the sidewall right end of the stand rod (9) is fixedly installed with one end of an L-shaped rod (11), the other end of the L-shaped rod (11) extends to the outside through the rectangular opening (8).
2. The tundish molten steel sampling device according to claim 1, characterized in that: The sidewall front and back ends of the stand rod (9) are provided with wheel grooves (12), the inner side walls of the front and back ends of the cylindrical groove (7) are provided with mounting grooves (13), the mounting grooves (13) are connected with rollers (14) through rotating shafts, the rollers (14) are rollingly installed in the wheel grooves (12), and the sidewall of the stand rod (9) is not in contact with the inner side wall of the cylindrical groove (7).
3. The tundish molten steel sampling device according to claim 2, characterized in that: The top end of the wheel groove (12) is in an open state.
4. The tundish molten steel sampling device according to claim 1, characterized in that: The front and back lengths of the L-shaped rod (11) are less than the internal front and back widths of the rectangular opening (8), and the L-shaped rod (11) is not in contact with the inner side wall of the rectangular opening (8).
5. The tundish molten steel sampling device according to claim 1, characterized in that: The sidewall right end of the stand rod (9) is provided with a clamping groove (15), the outer side wall right end lower side of the stand column (6) is fixedly installed with a circular ring (16), the circular ring (16) is rotatably installed with an I-shaped column (17), the left end lower side of the I-shaped column (17) is fixedly installed with a clamping plate (18), the height of the clamping plate (18) matches the upper and lower heights of the clamping groove (15), and the left end of the clamping plate (18) is clamped in the clamping groove (15).
6. The tundish molten steel sampling device according to claim 1, characterized in that: The top end of the stand rod (9) is attached to the inner top wall of the cylindrical groove (7).