Ground flat support frame for ladle

Abstract

The utility model relates to a ladle ground horizontal support frame relates to iron and steel metallurgical equipment technical field, including bottom plate, support vertical plate and lateral limiting beam, bottom plate is laid on ground horizontally, at least 2 support vertical plates are mutually parallel and are fixedly connected on bottom plate, the arc -shaped support aperture that is correspondingly adapted with the circumferential radian of ladle support position is set up on support vertical plate respectively, the axis of two sides of relative ladle horizontal position is set up and is installed lateral limiting beam, and the elastic buffer mechanism is set up and is installed between lateral limiting beam and support vertical plate, this support frame utilizes arc -shaped support surface face contact cooperation and supports horizontal state ladle, adopts the lateral limiting beam with the arc -shaped support aperture mechanism of elastic buffer function and jointly limits the load position of ladle, can guarantee the stability and reliability of horizontal state ladle, reduces the steel ladle load pressure intensity, alleviates the landing impact load, alleviates the friction damage and impact damage, prolongs the service period, eliminates the security risk, reduces the production cost, improves production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of steel metallurgical equipment technology, specifically to a steel ladle ground-mounted support frame. Background Technology

[0002] The ladle is the core metallurgical vessel for holding molten steel at high temperatures, and it is used throughout the entire steelmaking, ladle refining, and casting process. After the casting operation is completed, the ladle needs to be transferred to an online hot repair station or an offline cold repair station for maintenance based on the wear and tear of the inner lining and the cumulative age of the ladle. Regardless of the type of station, the ladle must be placed stably on the ground in a horizontal position. In actual production, some enterprises still use the direct ground placement method for ladles. However, due to the extreme weight of the steel ladles, the operation of lowering them by overhead crane is difficult and labor-intensive. Moreover, the steel ladle is always in contact with the ground at a single point or along a single line, resulting in excessive pressure at the contact point. Long-term repeated placement can easily cause severe wear and deformation of the ladle shell, which can easily lead to safety accidents such as steel leakage and steel drilling. Furthermore, the impact of lowering the ladle can easily cause it to bump into the steel ladle, posing a risk of equipment damage and personnel injury. Therefore, most enterprises have begun to adopt the placement method of ground support. The steel ladle support frames currently used all use parallel and spaced rigid load-bearing bodies to balance and support the steel ladle. Although increasing the support points and increasing the load-bearing contact area can improve the stability of the steel ladle when placed horizontally and reduce local friction damage, the steel ladle still has a large impact load when it is released from the overhead crane onto the support frame. Since the rigid support lacks sufficient buffering capacity, this impact can easily cause plastic deformation or local damage to the steel ladle shell. Sometimes it may even cause the support frame to break and become unstable. In extreme working conditions, it may even cause the steel ladle to tip over. The safety hazards are still very prominent. It is evident that existing ground support frames for steel ladles cannot adequately dissipate the instantaneous impact load when the steel ladle lands, resulting in insufficient protection for the steel ladle and difficulty in ensuring the safety of horizontal steel ladle operations. Therefore, it is necessary to research and develop a safe, reliable, and efficient ground support frame for horizontal steel ladles to solve the technical problem of impact loads easily causing impact damage to the steel ladle. Utility Model Content

[0003] The purpose of this utility model is to provide a steel ladle ground flat support frame that stably supports the flat steel ladle, buffers the impact load of landing, ensures the efficiency, stability and reliability of the flat steel ladle, extends the service life of the steel ladle, eliminates safety hazards, reduces production costs and improves production efficiency.

[0004] A ground-mounted support frame for a steel ladle includes: a base plate, supporting uprights, and lateral limiting beams. The base plate is laid horizontally on the ground. At least two supporting uprights are arranged parallel to each other and fixedly connected to the base plate, which can cooperate to provide balanced support for the steel ladle placed horizontally on the base plate. According to the horizontal orientation of the steel ladle on the base plate, arc-shaped support notches corresponding to the circumferential curvature of the support position of the steel ladle are respectively opened on the supporting uprights. The arc-shaped support notches and the steel ladle can correspond to form a surface contact support fit. The steel ladle is supported on the supporting uprights. Lateral limiting beams are respectively installed on both sides of the axis in the horizontal orientation. The lateral limiting beams further limit the bearing position of the ladle on the supporting plate in the lateral direction, preventing the ladle from sliding or rolling laterally and ensuring a stable and reliable supporting state. At the same time, an elastic buffer mechanism is installed between the lateral limiting beam and the supporting plate. The elastic buffer mechanism can alleviate and reduce the impact load generated between the ladle and the supporting plate and the lateral limiting beam during the horizontal descent of the ladle, preventing impact damage to the ladle.

[0005] The steel ladle ground flat support frame preferably has a disc spring assembly as the elastic buffer mechanism. At the same time, corresponding receiving slots are opened on the supporting plate, and the disc spring assemblies are respectively installed in the receiving slots, arranged in the vertical direction, with both ends abutting and supporting between the supporting plate and the lateral limiting beam.

[0006] The aforementioned steel ladle ground-mounted support frame preferably comprises a support plate composed of multiple layers of stacked steel plates. The steel plates are fixedly connected as a whole only at both ends. In the middle support section with the arc-shaped support notch, a groove gap is reserved between each layer of steel plates. The groove gap allows each layer of steel plate to have deformation adaptation space perpendicular to the plate surface, which can produce a small amount of elastic deformation. When the steel ladle is lowered and generates an eccentric impact that causes localized stress concentration on the support plate, the steel plate can rely on its own adaptive micro-deformation to dissipate and disperse the stress concentration on the support plate, buffer the impact load between the steel ladle and the support plate, reduce the destructive impact on the steel ladle shell, and extend the service life of the support plate.

[0007] The aforementioned steel ladle ground-mounted support frame preferably includes three supporting uprights on the base plate. Two of these supporting uprights correspond to two reinforcing rings on the steel ladle shell, supporting the steel ladle with the reinforcing rings. This significantly reduces the area of ​​the steel ladle shell directly subjected to stress and pressure, mitigating the risk of deformation and damage to the steel ladle shell. The third supporting upright is coordinated with the aforementioned two supporting uprights, based on the structural center of gravity of the steel ladle. This allows the three supporting uprights to work together to form a balanced and stable support structure, providing balanced and secure support for the steel ladle.

[0008] The beneficial effects of this utility model are that it provides a steel ladle ground-level support fixture with high structural compactness, small space occupation, and good environmental adaptability. It utilizes an arc-shaped support notch that corresponds to and matches the arc surface of the steel ladle shell to support the steel ladle in a flat position. Simultaneously, a lateral limiting beam with elastic buffering function assists the arc-shaped support notch in constraining and limiting the load-bearing position of the steel ladle. This effectively ensures the stability and reliability of the steel ladle in a flat position, reduces the load-bearing pressure between the ladle and the ground, alleviates the impact load when the steel ladle is placed flat, and reduces frictional damage and impact damage suffered by the steel ladle during ground-level placement. When applied in production, it can guarantee steel ladle quality, extend service life, eliminate safety hazards, reduce production costs, and improve production efficiency. Furthermore, the supporting uprights adopt a multi-layer steel plate stacked and assembled structure with pre-reserved groove gaps between the steel plates. This allows the supporting uprights to adaptively release local stress concentrations through the slight elastic deformation of the steel plates, alleviating the instantaneous unbalanced load on the ladle. Combined with the disc spring assembly, this forms a two-stage buffer mechanism, significantly reducing the impact load during the ladle's landing process and providing a more reliable safety guarantee for the ladle. Attached Figure Description

[0009] Figure 1 This is the front view of the steel ladle's flat ground support frame.

[0010] Figure 2 This is a top view of the steel ladle's flat ground support frame.

[0011] Figure 3 for Figure 2 Partial sectional view of section AA in the middle.

[0012] Figure 4 This is a side view of the steel ladle's flat ground support frame.

[0013] Figure 5 This is the front view of the ladle in a flat position.

[0014] Figure 6 This is a side view of the ladle in a flat position.

[0015] Among them: 1 is the base plate, 2 is the supporting upright plate, 3 is the lateral limiting beam, 4 is the arc-shaped supporting notch, 5 is the disc spring assembly, 6 is the groove gap, 7 is the steel ladle, and 8 is the reinforcing ring. Detailed Implementation

[0016] Furthermore, the technical solution for which protection is sought in this utility model will be described in detail below with reference to the preferred embodiments and accompanying drawings.

[0017] A steel ladle ground-mounted support frame, such as Figures 1 to 6As shown, the structure consists of a base plate 1, supporting uprights 2, lateral limiting beams 3, and disc spring assemblies 5. The base plate 1 is laid horizontally and fixed to the maintenance work station floor by anchor bolts. Three supporting uprights 2 are welded and fixed to the upper surface of the base plate 1. The supporting uprights 2 are coordinated with the structural center of gravity of the ladle 7, and cooperate with each other to form a balanced support structure for the ladle 7 in a flat state. Two of the supporting uprights 2 correspond to the installation positions of two reinforcing rings 8 on the outer wall of the ladle 7. Each supporting upright 2 is composed of five steel plates stacked and assembled. The steel plates are welded and fixed together at both ends to form a whole. Arc-shaped supporting notches 4 are opened in the middle section area of ​​each supporting upright 2. The arc of the arc-shaped supporting notches 4 corresponds to the arc of the supporting upright 2. The outer shell curvature of the supporting position on the steel ladle 7 is correspondingly adapted. In the section of the arc-shaped supporting notch 4, a groove gap 6 is reserved between each layer of steel plates, so that the steel plates can produce a small amount of elastic deformation in the direction perpendicular to the plate surface. The two lateral limiting beams 3 are perpendicular to the supporting upright plate 2 and are symmetrically distributed on both sides of the upper end surface of the supporting upright plate 2. The lateral limiting beams 3 are "I" shaped structural beams, and their lower ends are respectively limited and embedded in the receiving slots opened on the supporting upright plate 2. The disc spring groups 5 are also respectively embedded in the receiving slots. The disc spring groups 5 are respectively vertically abutting and supported between the supporting upright plate 2 and the lateral limiting beams 3, and apply a vertically upward elastic force to the lateral limiting beams 3 with the supporting upright plate 2 as the fulcrum.

[0018] The working principle of the steel ladle ground-mounted support frame is as follows: When hot or cold repairs are required on the steel ladle 7, a hoisting crane is used to lift the steel ladle 7 to the corresponding repair position and slowly lower it. During the lowering process, the horizontal orientation of the steel ladle 7 is dynamically adjusted so that the support points on the steel ladle 7 are aligned with the three support plates 2. Specifically, the two reinforcing rings 8 on the steel ladle 7 correspond to two of the support plates 2, until the outer arc surface of the steel ladle 7 fits into the arc-shaped support notches 4 opened on the support plates 2. Figure 5 and Figure 6As shown, the ladle 7 is supported stably and evenly on the ground-level support frame of this embodiment by the surface contact support of the supporting plate 2. Before the ladle 7 and the supporting plate 2 form a support engagement, the lateral limiting beams 3 set on both sides of the arc-shaped support notch 4 can limit the lateral displacement of the ladle 7. After the ladle 7 and the supporting plate 2 form a support engagement, the lateral limiting beams 3 can limit the lateral movement and lateral rolling of the ladle 7, ensuring the balance and stability of the ladle 7 in a flat state. During the dynamic interaction between the ladle 7, the supporting plate 2, and the lateral limiting beams 3, the steel plates that overlap to form the supporting plate 2 can rely on themselves to achieve stability. The adaptive micro-deformation dissipates and disperses the stress concentration generated on the supporting plate 2, buffering the impact load between the ladle 7 and the supporting plate 2. The disc spring group 5 set between the supporting plate 2 and the lateral limiting beam 3 can release and alleviate the impact force between the ladle 7 and the lateral limiting beam 3 under pressure elastic deformation, thereby significantly reducing the impact load on the ladle 7 at the moment of horizontal landing. This effectively protects the outer shell of the ladle 7 and the ladle ground horizontal support frame structure of this embodiment, ensuring the stability and reliability of the ladle ground horizontal support frame structure and the horizontal state of the ladle 7. In actual production, this can guarantee production safety, reduce production costs, and improve production efficiency.

Claims

1. A steel ladle-shaped ground-mounted support frame, characterized in that, include: The base plate (1), the supporting upright plate (2), and the lateral limiting beam (3) are arranged horizontally on the ground. At least two of the supporting upright plates (2) are arranged parallel to each other and fixedly connected to the base plate (1) to support the steel ladle (7) placed flat on the base plate (1). According to the flat position of the steel ladle (7) on the base plate (1), arc-shaped support notches (4) corresponding to the circumferential arc of the support position of the steel ladle (7) are respectively opened on the supporting upright plate (2). The arc-shaped support notch (4) and the steel ladle (7) can be correspondingly arranged to form a surface contact support fit. The lateral limiting beams (3) are respectively installed on both sides of the axis of the support plate (2) relative to the horizontal position of the steel ladle (7). The lateral limiting beams (3) further limit the bearing position of the steel ladle (7) on the support plate (2) in the lateral direction. At the same time, an elastic buffer mechanism is installed between the lateral limiting beams (3) and the support plate (2).

2. The steel ladle ground-mounted support frame as described in claim 1, characterized in that: The elastic buffer mechanism is a disc spring assembly (5), and a corresponding receiving slot is provided on the supporting plate (2). The disc spring assembly (5) is respectively installed in the receiving slot, arranged in the vertical direction, and its two ends are respectively abutted and supported between the supporting plate (2) and the lateral limiting beam (3).

3. A steel ladle ground-mounted support frame as described in claim 1 or 2, characterized in that: The supporting plate (2) is composed of multiple layers of steel plates stacked together. The steel plates are fixedly connected as a whole only at both ends. In the middle support section where the arc-shaped support notch (4) is opened, a groove gap (6) is reserved between the steel plates. The groove gap (6) allows the single layer of steel plate to have a deformation adaptation space perpendicular to the plate surface direction.

4. The steel ladle ground-mounted support frame as described in claim 3, characterized in that: Three support plates (2) are provided on the base plate (1), two of which are respectively set to correspond to two reinforcing rings (8) on the outer shell of the steel ladle (7) and support the steel ladle (7) by relying on the reinforcing rings (8). The other support plate (2) is set to correspond and coordinate with the aforementioned two support plates (2) based on the structural center of gravity of the steel ladle (7), so that the three support plates (2) cooperate to form a balanced and stable support structure.

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