Trunnion type steel ladle bracket

Abstract

The utility model relates to a trunnion type steel ladle bracket, and belongs to the technical field of steelmaking. The trunnion type steel ladle bracket comprises a base body, a guide structure and a supporting assembly. Wherein the guide structure is arranged on the base body; the guide structure is matched with the trunnion type steel ladle, and the trunnion type steel ladle is connected with the base body through the guide structure. When the trunnion type steel ladle is connected with the base body, the base body can drive the trunnion type steel ladle to move under the action of driving force; the supporting assembly is connected to the position, corresponding to the guide structure, of the base body, and the supporting assembly is matched with the trunnion type steel ladle; in the process that the steel ladle trunnion moves along with the base body, the supporting assembly abuts against the steel ladle trunnion. The trunnion type steel ladle bracket provided by the utility model is used for hoisting and tipping the trunnion type steel ladle.

Description

Technical Field

[0001] The utility model relates to the technical field of steelmaking, in particular to a trunnion type ladle bracket. Background Art

[0002] Ladles are a common tool in steel mills. During use, ladle tilting devices are often used for occasional slag removal and nozzle repair. The ladle's structural design is a key factor in determining the ladle tilting mechanism. In steel mills, ladles primarily come in two types: slatted and trunnion-type. Slatted ladles have a lifting point that is not located at the trunnion, as the trunnion can rotate within the slatted hole. Trunnion-type ladles have a lifting point located at the trunnion's location.

[0003] To facilitate ladle flipping, a ladle support is typically installed on the ladle tilting device or elsewhere. However, most existing support brackets are only suitable for hanging plate ladles, not trunnion ladles. Furthermore, existing support brackets provide poor support for trunnion ladles, resulting in low operating efficiency. Utility Model Content

[0004] The utility model provides a trunnion type ladle bracket, which is convenient for lifting, tilting and rotating the trunnion type ladle, and can improve the supporting stability of the trunnion type ladle, thereby improving work efficiency.

[0005] The present application provides a trunnion-type ladle bracket comprising: a base, a guide structure and a support assembly; wherein the guide structure is arranged on the base; the guide structure is adapted to the trunnion-type ladle, and the trunnion-type ladle is connected to the base via the guide structure; when the trunnion-type ladle is connected to the base, the base can drive the trunnion-type ladle to move under the action of a driving force; the support assembly is connected to a position on the base corresponding to the guide structure, and the support assembly is adapted to the trunnion-type ladle; when the trunnion of the ladle moves with the base, the support assembly abuts against the trunnion of the ladle.

[0006] The trunnion-type ladle provided in this application is provided with a base, which can provide support for other parts of the trunnion-type ladle bracket. The guide structure is provided to support and guide the ladle, allowing the trunnion-type ladle to tip over when subjected to a force. Compared with conventional technologies, the trunnion-type ladle is easy to operate and has a simple structure. The support assembly is provided to contact the ladle trunnion during the trunnion-type ladle's flipping process, providing support for the trunnion-type ladle through the ladle trunnion, thereby improving the stability of the trunnion-type ladle during the tipping process.

[0007] In one possible implementation of the present application, the guide structure includes an arcuate groove; the arcuate groove is arranged on the base, the arcuate groove is adapted to the trunnion of the ladle, and the trunnion of the ladle is connected to the base through the arcuate groove; when the base is subjected to a driving force, the base can drive the trunnion-type ladle to move so as to flip the trunnion-type ladle.

[0008] In one possible implementation of the present application, the guide structure also includes a limiting hole, which is arranged at a position on the base corresponding to the arc groove; the base installs the ear-axle type ladle bracket on the tilting device through the limiting hole, so that the ear-axle type ladle bracket can rotate around the axis of the limiting hole when subjected to a driving force.

[0009] In one possible implementation of the present application, the support assembly includes a first support member and a second support member; the first support member and the second support member are both connected to the base, and the first support member and the second support member are respectively installed at positions corresponding to the arc groove on the base; when the ladle ear axis moves with the base, the first support member or the second support member abuts against the ladle ear axis.

[0010] In one possible implementation of the present application, the first support member is arranged at a position on the base corresponding to the arc groove; the first support member is provided with a first abutment structure adapted to the ladle ear axis, and when the ladle ear axis moves to the first angle with the base, the ladle ear axis abuts against the first support member through the first abutment structure.

[0011] In one possible implementation of the present application, a second support member is arranged at a position on the base corresponding to the arc groove, an angle is formed between the second support member and the first support member, and a second abutment structure adapted to the arc groove is provided on the second support member; when the ladle ear shaft moves to the second angle with the base, the ladle ear shaft abuts against the second support member through the second abutment structure.

[0012] In one possible implementation of the present application, the trunnion-type ladle bracket further includes a drive assembly connected to the base; when the base moves to a first angle, the drive assembly drives the base to move to a second angle.

[0013] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0014] (1) The present application is provided with a guide structure, which includes an arc groove and a limiting hole; the arc groove and the limiting hole provide support for the ear-axle type steel ladle, and the arc groove can also provide guidance for the ear-axle type steel ladle, making it convenient to lift and tip the ear-axle type steel ladle, with a simple structure and easy operation.

[0015] (2) The present application is provided with a support assembly, and the ladle ear shaft can abut against the support assembly during the movement of the base body. Through the contact between the support assembly and the ladle ear shaft, the stability of the ear shaft type ladle during the movement can be improved, and the work efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a front view of a trunnion-type ladle bracket of the utility model;

[0018] Figure 2 for Figure 1 Side view;

[0019] Figure 3 It is a front view of the trunnion type ladle bracket and the trunnion type ladle connection structure;

[0020] Figure 4 This is a state diagram when the ladle trunnion is placed in the trunnion type ladle holder;

[0021] Figure 5 This is a state diagram after the trunnion type ladle bracket drives the trunnion type ladle to rotate 90 degrees;

[0022] Figure 6 This is a diagram showing the state after the trunnion ladle bracket drives the trunnion ladle to rotate 135°.

[0023] Reference numerals:

[0024] 1-base; 2-guide structure; 21-arc groove; 22-limiting hole; 3-support assembly; 31-first support member; 32-second support member; 4-drive assembly; 5-trunnion-type ladle; 6-trunnion of ladle. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0026] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this utility model are for illustrative purposes only and do not represent the only implementation method.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0028] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it can mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] Unless otherwise defined, all technical and scientific terms used in the specification of this utility model have the same meanings as those commonly understood by those skilled in the art to which this utility model belongs. The terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model. The term "and / or" used in the specification of this utility model includes any and all combinations of one or more of the relevant listed items.

[0030] The embodiment of the present application provides a trunnion type ladle bracket, referring to Figure 1 、 Figure 2 and Figure 3 , Figure 1 shows a front view of a trunnion type ladle support, Figure 2 shows a side view of a trunnion type ladle holder, Figure 3The figure shows a front view of a trunnion-type ladle support and a trunnion-type ladle after connection. The trunnion-type ladle support comprises a base 1, a guide structure 2, and a support assembly 3. The guide structure 2 is disposed on the base 1 and mates with a trunnion-type ladle 5, which is connected to the base 1 via the guide structure 2. When the trunnion-type ladle 5 is connected to the base 1, the base 1 can drive the trunnion-type ladle 5 to move under the action of a driving force. The support assembly 3 is connected to the base 1 at a position corresponding to the guide structure 2 and mates with the trunnion-type ladle 5. As the ladle trunnion 6 moves with the base 1, the support assembly 3 abuts against the ladle trunnion 6.

[0031] In the embodiment of the present application, the base 1 is provided with points or structures that can be connected to other parts, such as mounting holes, mounting grooves, etc.

[0032] Exemplarily, the base 1 may be a supporting part such as a base, a support frame, a bracket, etc.; alternatively, the base 1 may be made of steel or other raw materials that meet the requirements.

[0033] As another example, the base body 1 may be an integrally formed structure; or it may be a plurality of parts joined together by welding or other methods.

[0034] In the embodiment of the present application, since the trunnion-type ladle 5 is provided with a ladle trunnion 6, a guide structure 2 can be provided at a corresponding position on the base 1. The size of the guide structure 2 can be the same as, or nearly the same as, the size of the ladle trunnion 6; the shape of the guide structure 2 can be the same as, or nearly the same as, the shape of the ladle trunnion 6. The ladle trunnion 6 is connected to the base 1 via the guide structure 2, and the base 1 provides support for the trunnion-type ladle 5; when subjected to a force, the base 1 can drive the trunnion-type ladle 5 to move.

[0035] Exemplarily, the guide structure 2 may be a structure having a guiding function, such as a guide groove or other structure capable of providing guidance and support for the ladle trunnion 6 .

[0036] Among them, the guide groove can be set as a special-shaped groove. This application does not limit the specific shape of the special-shaped groove. It can provide support and guidance for the ear-axle type ladle 5, so that the ear-axle type ladle 5 can realize the tilting function under the drive of the base 1.

[0037] In an embodiment of the present application, a support assembly 3 can be provided at a position on the base 1 corresponding to the guide structure 2. For example, a certain space is reserved between the guide structure 2 and the support assembly 3 to facilitate the hook to transfer the ladle ear shaft 6 to the guide structure 2.

[0038] Furthermore, the support assembly 3 may be provided with structures or parts corresponding to the ladle trunnion 6. When the base 1 drives the trunnion-type ladle 5 to move via the ladle trunnion 6, the provided structures or parts can provide support for the ladle trunnion 6. For example, the support assembly 3 may be provided with structures such as contact surfaces and contact grooves that contact the ladle trunnion 6.

[0039] In the above embodiment, the base 1 is provided, and the base 1 can provide support for other components of the trunnion-type ladle bracket. The guide structure 2 is provided, and the guide structure 2 provides support and guidance for the ladle, so that the trunnion-type ladle 5 can be tilted when subjected to a force; compared to conventional technologies, the operation is convenient and the structure is simple. The support assembly 3 is provided, and the support assembly 3 can contact the ladle trunnion 6 during the turning process of the trunnion-type ladle 5, providing support for the trunnion-type ladle 5 through the ladle trunnion 6, thereby improving the stability of the trunnion-type ladle 5 during the tilting process.

[0040] In some embodiments of the present application, Figure 1 and Figure 2 As shown, the guide structure 2 includes an arcuate groove 21 ; the arcuate groove 21 is provided on the base 1 , the arcuate groove 21 is adapted to the ladle trunnion 6 , and the ladle trunnion 6 is connected to the base 1 through the arcuate groove 21 .

[0041] In the embodiment of the present application, the guide structure 2 can be configured to include an arcuate groove 21. The arcuate groove 21 is provided on the base 1. The size of the arcuate groove 21 can be the same as, or nearly the same as, the size of the ladle trunnion 6. The ladle trunnion 6 can be inserted into the arcuate groove 21, thereby connecting the ladle trunnion 6 to the base 1.

[0042] For example, the arcuate groove 21 can be composed of two interconnected sections. One section of the groove forms an opening on the base 1, which can also be understood as an inlet, facilitating the entry of the ladle trunnion 6 into the arcuate groove 21; the other section of the groove restricts the ladle trunnion 6, allowing the base 1 to drive the ladle trunnion 6 to move.

[0043] In the above embodiment, since the arc groove 21 is provided, the arc groove 21 provides guidance and support for the ladle ear 6, and the ear-axle type ladle 5 can be driven to move through the base 1, and the ear-axle type ladle 5 does not need to be tilted by the tail hook of the ear-axle type ladle 5, which is convenient for operation.

[0044] In some embodiments of the present application, Figure 1 and Figure 2As shown, the guide structure 2 also includes a limiting hole 22, which is arranged at a position on the base 1 corresponding to the arc groove 21; the base 1 installs the ear-axle type ladle 5 bracket on the tilting device through the limiting hole 22, so that the ear-axle type ladle 5 bracket can rotate around the axis of the limiting hole 22 when subjected to a driving force.

[0045] In the embodiment of the present application, the guide structure 2 can be set to a structural form that also includes a limiting hole 22. The limiting hole 22 can be set on the base 1, and a certain space is reserved between the limiting hole 22 and the arc groove 21 to facilitate the hook to place the ladle ear shaft 6 into the arc groove 21.

[0046] The dimensions of the stopper hole 22 are identical, or nearly identical, to those of the tilting shaft. The tilting shaft is mounted on the tilting mechanism. As part of the tilting mechanism, the tilting shaft supports the base 1 through the stopper hole 22. The tilting mechanism also includes other structures for supporting or driving corresponding components.

[0047] For example, taking the number of bases 1 as two, the two bases 1 are respectively arranged on both sides of the tilting device, the two bases 1 and the two tilting axes correspond one to one, one of the tilting axes is connected to one of the bases 1 through one of the limiting holes 22, and the other tilting axis is connected to the other base 1 through the other limiting hole 22.

[0048] As another example, the ear-axle type ladle 5 can be set at a position between the two bases 1. The ear-axle type ladle 5 is provided with two ladle ear shafts 6. The two ladle ear shafts 6 correspond to the two bases 1 one by one. One of the ladle ear shafts 6 is connected to one of the bases 1 through one of the arc grooves 21, and the other ladle ear shaft 6 is connected to the other base 1 through another arc groove 21.

[0049] In the above embodiment, since the limiting hole 22 is provided, the base 1 is supported by the limiting hole 22, thereby supporting the ear-axle type ladle bracket, so that the ear-axle type ladle bracket can rotate around the axis of the limiting hole 22 when subjected to a force, thereby driving the ear-axle type ladle 5 to tilt.

[0050] In some embodiments of the present application, Figure 1 and Figure 2 As shown, the support assembly 3 includes a first support member 31 and a second support member 32; the first support member 31 and the second support member 32 are both connected to the base 1, and the first support member 31 and the second support member 32 are respectively installed at positions corresponding to the arc groove 21 on the base 1; when the ladle ear shaft 6 moves with the base 1, the first support member 31 or the second support member 32 abuts against the ladle ear shaft 6.

[0051] In the embodiment of the present application, the support assembly 3 can be configured to include a first support member 31 and a second support member 32. The first support member 31 and the second support member 32 can both be mounted on the base 1, and the first support member 31 and the second support member 32 can be mounted below the arc-shaped groove 21, so that the ladle trunnion 6 can contact the first support member 31 or the second support member 32 during the movement of the base 1.

[0052] Exemplarily, the first support member 31 may be disposed at a position corresponding to the arc-shaped slot 21 . For example, the first support member 31 may be disposed below the arc-shaped slot 21 .

[0053] Taking the cross-section of the base 1 as an example, which is L-shaped, the first support member 31 can be arranged on the end surface of the bottom of the base 1. The first support member 31 can be a rectangular structure, with the length direction of the first support member 31 arranged horizontally, and the axis of the limiting hole 22 arranged horizontally. The axis direction of the limiting hole 22 can be perpendicular to the length direction of the first support member 31, or nearly perpendicular.

[0054] In another example, the second support member 32 may be disposed below the arc-shaped slot 21 , and an angle is formed between the length direction of the second support member 32 and the length direction of the first support member 31 .

[0055] One end of the second support member 32 can be connected to one end of the first support member 31. The second support member 32 extends in a vertical direction, and the length direction of the second support member 32 can be perpendicular to the length direction of the first support member 31. The second support member 32 and the first support member 31 can form an "L"-shaped structure.

[0056] It should be noted that the first support member 31, the second support member 32, and the base 1 can be manufactured in an integral manner or connected by welding, etc. Along the axis of the limiting hole 22, a certain space is reserved between the first support member 31, the second support member 32, and the arc-shaped groove 21, so that the hook can be raised and lowered normally within a certain space.

[0057] Moreover, along the vertical direction, the height of the first support member 31 and the second support member 32 can be determined according to the size of the arc groove 21 and the ladle ear shaft 6, so that the ladle ear shaft 6 can contact the surface of the first support member 31 or the second support member 32 during the movement of the base 1.

[0058] In the above embodiment, the first support member 31 and the second support member 32 are provided; the first support member 31 and the second support member 32 can provide support for the ladle trunnion 6, thereby improving the stability of the ladle trunnion 6 during movement.

[0059] In some embodiments of the present application, reference Figure 4 、 Figure 5 and Figure 6 , Figure 4 The diagram shows the state when the trunnion type ladle 5 is placed in the bracket and is at 0°. Figure 5 The diagram shows the state when the bracket drives the ladle to rotate to 90 degrees. Figure 6 Shown in Figure 6 The state diagram after the ladle continues to rotate 45 degrees. Figures 1-6 As shown, the trunnion-type ladle bracket further includes a driving assembly 4, which is connected to the base 1; after the base 1 moves to the first angle, the driving assembly 4 drives the base 1 to move to the second angle.

[0060] In the embodiment of the present application, the trunnion-type ladle support can be configured to further include a drive assembly 4. The drive assembly 4 can be mounted on the base 1, for example, at the junction of the first support member 31 and the second support member 32. After the base 1 moves to the first angle, the drive assembly 4 drives the base 1 to the second angle, and the trunnion-type ladle 5 tilts with the base 1 to the second angle.

[0061] For example, the driving assembly 4 may include a cylinder or other driving mechanism. The cylinder may be installed on the tilting device and connected to the base 1 to drive the base 1 to move.

[0062] In another example, the oil cylinder can be provided at the bottom of the base 1 and located at the position where the first support member 31 and the second support member 32 are connected, so as to drive the base 1 to move by the oil cylinder.

[0063] In the above embodiment, since the driving assembly 4 is provided, the trunnion-type ladle bracket can be tilted from the first angle position to the second angle position through the provided driving assembly 4, which is convenient for operation and simple in structure.

[0064] The following describes the use of a trunnion-type ladle bracket provided in this application. When in use:

[0065] S100: The limiting hole 22 on the trunnion type ladle bracket is sleeved on the tilting shaft on the tilting device, and the trunnion type ladle bracket is supported by the tilting device.

[0066] S200: The ladle trunnion 6 of the trunnion-type ladle 5 is hung on the crane hook, and the ladle trunnion 6 is guided into the arc-shaped groove 21 by the crane hook, thereby connecting the trunnion-type ladle 5 to the base 1. At this time, the ladle trunnion 6 abuts against the first support member 31, and the trunnion-type ladle 5 is supported by the base 1 and the first support member 31.

[0067] S300: Under the action of the primary drive, that is, through other structures on the tilting device, or through the external structure driving the base 1 to move, the ladle trunnion 6 slides in the arc groove 21, and the base 1 drives the trunnion-type ladle 5 to rotate 90° around the tilting axis. At this time, the ladle trunnion 6 and the second support member 32 are in contact, and the trunnion-type ladle 5 is supported by the base 1 and the second support member 32.

[0068] S400: After the base 1 rotates to the 90° position, under the guidance of the arc groove 21, the base 1 and the trunnion-type ladle 5 are driven by the driving assembly 4 to continue rotating 45° along the original direction, thereby completing a complete tilting process of the trunnion-type ladle 5.

[0069] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0070] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A trunnion type ladle bracket, characterized in that: include: Matrix (1); A guide structure (2), the guide structure (2) being arranged on the base (1); the guide structure (2) being adapted to the trunnion-type ladle (5), the trunnion-type ladle (5) being connected to the base (1) via the guide structure (2); when the trunnion-type ladle (5) is connected to the base (1), the base (1) is able to drive the trunnion-type ladle (5) to move under the action of a driving force; A support assembly (3) is connected to a position on the base (1) corresponding to the guide structure (2), and the support assembly (3) is adapted to the trunnion-type ladle (5); the trunnion-type ladle (5) is provided with a ladle trunnion (6), and when the ladle trunnion (6) moves with the base (1), the support assembly (3) abuts against the ladle trunnion (6).

2. The trunnion type ladle bracket according to claim 1, characterized in that: The guide structure (2) includes an arcuate groove (21); the arcuate groove (21) is provided on the base (1); the arcuate groove (21) is adapted to the ladle trunnion (6); and the ladle trunnion (6) is connected to the base (1) via the arcuate groove (21); When the base (1) is subjected to a driving force, the base (1) can drive the trunnion-type ladle (5) to move, so as to flip the trunnion-type ladle (5).

3. The trunnion type ladle bracket according to claim 2, characterized in that: The invention also includes a limiting hole (22), which is arranged on the base (1) at a position corresponding to the arc-shaped groove (21); the base (1) installs the trunnion-type ladle bracket on the tilting device through the limiting hole (22), so that the trunnion-type ladle bracket can rotate around the axis of the limiting hole (22) when subjected to a driving force.

4. The trunnion type ladle bracket according to claim 2, characterized in that: The support assembly (3) comprises a first support member (31) and a second support member (32); the first support member (31) and the second support member (32) are both connected to the base (1), and the first support member (31) and the second support member (32) are respectively mounted on the base (1) at positions corresponding to the arc-shaped groove (21); when the ladle trunnion (6) moves with the base (1), the first support member (31) or the second support member (32) abuts against the ladle trunnion (6).

5. The trunnion type ladle bracket according to claim 4, characterized in that: The first support member (31) is arranged at a position on the base (1) corresponding to the arc-shaped groove (21); the first support member (31) is provided with a first abutment structure adapted to the steel ladle trunnion (6); when the steel ladle trunnion (6) moves to a first angle along with the base (1), the steel ladle trunnion (6) abuts against the first support member (31) through the first abutment structure.

6. The trunnion type ladle bracket according to claim 5, characterized in that: The second support member (32) is arranged at a position on the base (1) corresponding to the arc-shaped groove (21), and an angle is formed between the second support member (32) and the first support member (31). The second support member (32) is provided with a second abutment structure adapted to the arc-shaped groove (21); when the steel ladle trunnion (6) moves to the second angle along with the base (1), the steel ladle trunnion (6) abuts against the second support member (32) through the second abutment structure.

7. The trunnion type ladle bracket according to claim 6, characterized in that: It also includes a driving component (4), which is connected to the base (1); when the base (1) moves to the first angle, the driving component (4) drives the base (1) to move to the second angle.

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