Disassembling and assembling mechanism for large nut of converter spherical hinge device

Abstract

The invention discloses a dismounting and mounting mechanism for a large nut of a converter spherical hinge device, and belongs to the technical field of converter spherical hinges, the dismounting and mounting mechanism comprises an inner sleeve assembly, the inner sleeve assembly sleeves the outer wall of the large nut of the spherical hinge and is connected with a wrench assembly through a connecting assembly, and a floating mounting seat is connected with a sliding cover body through a fixing assembly. By designing the adjustable inner sleeve assembly, reliable coating and meshing of spherical hinge large nuts with different calibers can be achieved. The inner sleeve assembly is matched with the connecting assembly, so that torque can be efficiently transmitted to the wrench assembly, original manually dispersed stress is converted into axially stable and controllable rotating dismounting force, in this way, the labor intensity of operators is reduced, the dismounting time is shortened, the safety is guaranteed, and meanwhile the dismounting efficiency is improved. And the disassembly and assembly efficiency and reliability of the spherical hinge large nut are improved.

Description

Technical Field

[0001] This invention belongs to the field of converter ball hinge technology, specifically a disassembly and assembly mechanism for the large nut of a converter ball hinge device. Background Technology

[0002] In the steelmaking process, the converter ball joint assembly is a crucial support device used to fix the furnace body. It is complex, massive, and extremely heavy. Due to its weight and size, coupled with limited maintenance space, construction is often very difficult. The disassembly and loosening of the large nut on the ball joint assembly is particularly challenging, often starting with loosening it. For example, in a 100-ton converter, the thread size of the ball joint's large nut can reach 220mm with a pitch of 8mm, making disassembly extremely difficult.

[0003] The existing operating method usually involves first placing a pre-processed fixed wrench on the large nut, and then using auxiliary tools such as a ramming block and a hand chain hoist to loosen it. This method not only consumes a lot of manpower and time, but is also extremely unsafe and cannot meet the high-efficiency and fast-paced maintenance requirements of modern steel smelting production. Summary of the Invention

[0004] The purpose of this invention is to provide a disassembly and assembly mechanism for the large nut of a converter ball joint device, so as to solve at least one aspect of the problems and defects mentioned in the background art.

[0005] A disassembly and assembly mechanism for a large nut in a converter ball joint assembly is provided, comprising an inner sleeve assembly for fitting onto the outer wall of the ball joint large nut, and the inner sleeve assembly being connected to a wrench assembly via a connecting assembly.

[0006] Furthermore, the inner sleeve assembly includes a mounting plate, on which a plurality of inner sleeve segments are slidably connected. Each inner sleeve segment has a central conical core inside. The central conical core is connected to an axial drive assembly for driving the central conical core to move axially. The axial drive assembly locks the central conical core in position to prevent backflow during high-torque disassembly and assembly, ensuring clamping reliability. In use, the operator first places the inner sleeve assembly onto the outer wall of the ball joint nut; then, the axial drive assembly is activated to push the central conical core to move axially. During the axial movement, the central conical core causes the inner sleeve segments to expand radially outward synchronously through the action of the conical surface until their inner walls are tightly fitted with the outer wall of the ball joint nut, thus completing the clamping.

[0007] Furthermore, the axial drive assembly includes a drive screw rotatably connected to the mounting plate. A central cone is detachably connected to the drive screw via a connecting post. The drive screw rotates under the constraint of the mounting plate, and the rotational motion is converted into the axial linear motion of the central cone. When the central cone moves forward, it pushes the inner cylinder petals to open radially outward, achieving the connection and engagement with the ball joint nut. When the central cone moves backward, the inner cylinder petals retract radially, and the inner sleeve assembly loosens for easy disassembly. Through the rotational motion of the drive screw, the manually input rotational torque is converted into a controllable axial displacement of the central cone, thereby achieving radial synchronous tensioning or retraction of the inner cylinder petals.

[0008] Furthermore, the mounting plate is provided with a guide groove along the circumferential direction, and each inner cylinder petal is provided with a guide boss at the bottom. The guide boss is slidably connected in the guide groove. When the drive screw rotates in the opposite direction and the central cone core retracts axially, the radial component force disappears, and each inner cylinder petal retracts inward along the guide groove under its own weight or the action of the reset elasticity. The overall inner diameter of the inner sleeve assembly decreases, thereby smoothly disengaging from the ball joint nut.

[0009] Furthermore, the mounting plate is also provided with an outer limiting sleeve. As the axial drive assembly pushes the central cone core forward, the inner cylinder flap expands radially outward under the action of the cone surface. When the outer side of the inner cylinder flap contacts the inner wall of the outer limiting sleeve, its outward stroke is restricted, and the inner cylinder flap stops expanding. At this time, the reliable clamping of the ball joint nut is completed.

[0010] Furthermore, the connecting assembly includes several connecting keys, and the upper part of the mounting cylinder plate is also provided with several snap-fit ​​grooves along the circumferential direction. Each of the snap-fit ​​grooves is provided with a connecting key. The mounting cylinder plate is connected to the wrench assembly through the several connecting keys. The number of snap-fit ​​grooves is preferably 4 to 12 to take into account both uniform force distribution and operational flexibility. The mounting cylinder plate is set on the mounting cylinder plate, and the upper part of the mounting cylinder plate is provided with several snap-fit ​​grooves along the circumferential direction. Each of the snap-fit ​​grooves is provided with a connecting key. The mounting cylinder plate is connected to the wrench assembly through the several connecting keys.

[0011] Furthermore, the wrench assembly includes a wrench ring body, the wrench ring body having several mounting slots inside, and a connecting key engaging between the mounting slots and the snap-fit ​​slots. Inserting the connecting key into the channel formed by the mounting slots and the snap-fit ​​slots completes the connection between the wrench assembly and the connecting assembly. The operator applies a rotational torque to the outside of the wrench ring body, and the torque is transmitted sequentially through the wrench ring body, the connecting key, and the mounting sleeve plate, ultimately acting on the inner sleeve assembly, causing the ball joint nut to rotate, thus achieving disassembly or installation.

[0012] Furthermore, the wrench ring body is provided with flanges on both sides. When disassembling the ball joint nut, the operator can reliably connect the wrench ring body to the mounting plate through the connecting key and apply rotational torque.

[0013] Furthermore, a U-shaped gripper groove is provided at the flange, through which the force is applied to the flange; the flange transmits the torque to the wrench ring body, and then to the inner sleeve assembly via the connecting key, ultimately driving the ball joint nut to rotate; after disassembly, the external tool can be removed from the U-shaped gripper groove without affecting the quick disassembly and reuse of the wrench assembly.

[0014] Furthermore, a semi-circular groove is provided above the flange. The applied force is transmitted to the flange through the semi-circular groove, and then the flange acts on the wrench ring body to finally complete the torque transmission. After the operation is completed, the force bar can be lifted directly from the semi-circular groove without affecting the quick disassembly and reuse of the wrench assembly.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The inner sleeve assembly has a cylindrical structure, and its inner wall contour matches the shape of the ball joint nut. It is fitted onto the outer wall of the nut through a sleeve connection. The inner sleeve assembly can be replaced or adjusted according to the outer diameter of different ball joint nuts, enabling the same disassembly and assembly mechanism to adapt to multiple specifications and improve versatility. The connecting component is located between the inner sleeve assembly and the wrench assembly. Its main function is to achieve a rigid connection and torque transmission between the two. In actual use, the operator first axially inserts the inner sleeve assembly into the ball joint nut, making it completely fit against the outer wall of the nut. Then, the wrench assembly is connected and fixed to the inner sleeve assembly through the connecting component. The operator rotates the wrench assembly, and the torque is transmitted to the inner sleeve assembly through the connecting component. The inner sleeve assembly drives the ball joint nut to rotate synchronously, thereby realizing the disassembly or installation of the ball joint nut. By designing an adjustable inner sleeve assembly, reliable encapsulation and engagement of ball joint nuts of different diameters can be achieved. The inner sleeve assembly, in conjunction with the connecting assembly, enables efficient torque transmission to the wrench assembly, transforming the previously manually distributed force into a stable and controllable axial rotational force for disassembly and assembly. This method not only reduces the labor intensity of operators and shortens disassembly and assembly time, but also improves the efficiency and reliability of ball joint nut disassembly and installation while ensuring safety, providing reliable technical support for the rapid maintenance of converter ball joint devices. Attached Figure Description

[0017] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 A schematic diagram of the overall structure of a disassembly and assembly mechanism for the large nut of a converter ball hinge device; Figure 2 A schematic diagram of the wrench assembly structure provided by the present invention; Figure 3This is a top view of the inner sleeve assembly provided by the present invention; Figure 4 This is a three-dimensional structural diagram of the inner sleeve assembly provided by the present invention; Figure 5 This is another perspective three-dimensional structural schematic diagram of the inner sleeve assembly provided by the present invention.

[0019] In the diagram: 1. Inner sleeve assembly; 11. Mounting plate; 111. Guide groove; 112. Snap-fit ​​groove; 12. Inner cylinder flap; 121. Guide boss; 13. Central cone core; 14. Axial drive assembly; 141. Drive screw; 142. Connecting post; 15. Outer limit sleeve; 2. Connecting assembly; 21. Connecting key; 3. Wrench assembly; 31. Wrench ring; 311. Mounting groove; 32. Flange; 4. U-shaped gripper groove; 5. Semicircular groove. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0022] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0023] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, and not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0026] Please see Figure 1-5 As shown in the embodiment of the present invention, a disassembly and assembly mechanism for a large nut of a converter ball joint device includes an inner sleeve assembly 1, which is used to fit onto the outer wall of the ball joint large nut. The inner sleeve assembly 1 is connected to a wrench assembly 3 through a connecting assembly 2.

[0027] The inner sleeve assembly 1 has a cylindrical structure, and its inner wall contour matches the shape of the ball joint nut. It is wrapped around the outer wall of the nut by a sleeve connection. The inner sleeve assembly 1 can be replaced or adjusted according to the outer diameter of different ball joint nuts, so that the same disassembly and assembly mechanism has the ability to adapt to multiple specifications and improve versatility. The connecting assembly 2 is set between the inner sleeve assembly 1 and the wrench assembly 3. Its main function is to realize the rigid connection and torque transmission between the two. In actual use, the operator first axially inserts the inner sleeve assembly 1 into the ball joint nut, so that it is completely in contact with the outer wall of the nut. Then, the wrench assembly 3 is connected and fixed to the inner sleeve assembly 1 through the connecting assembly 2. The operator rotates the wrench assembly 3, and the torque is transmitted to the inner sleeve assembly 1 through the connecting assembly 2. The inner sleeve assembly 1 drives the ball joint nut to rotate synchronously, thereby realizing the disassembly or installation of the ball joint nut. The adjustable inner sleeve assembly 1 enables reliable encapsulation and engagement of ball joint nuts of different diameters. Then, the connecting assembly 2 efficiently transmits the torque to the wrench assembly 3, thereby transforming the manually distributed force into an axially stable and controllable rotational disassembly and assembly force.

[0028] In one embodiment, see Figure 1 , Figure 4 and Figure 5As shown, the inner sleeve assembly 1 includes a mounting plate 11, on which several inner sleeve petals 12 are slidably connected. Each inner sleeve petal 12 has a central cone 13 inside. The central cone 13 is connected to an axial drive assembly 14, which drives the central cone 13 to move axially, advancing or retracting along the axial direction. Through the controllable movement of the axial drive assembly 14, the inner sleeve petals 12 can be synchronously opened or closed, thus adapting to large ball joint nuts of different diameters. After the central cone core 13 reaches the predetermined position, the axial drive assembly 14 can lock its position to prevent backing during high-torque disassembly and assembly, ensuring clamping reliability. In use, the operator first puts the inner sleeve assembly 1 onto the outer wall of the ball joint nut; then starts the axial drive assembly 14 to push the central cone core 13 to move axially. During the axial movement, the central cone core 13 causes the inner cylinder petal 12 to expand radially outward through the action of the cone surface until its inner wall is tightly attached to the outer wall of the ball joint nut and the clamping is completed.

[0029] In one embodiment, see Figure 1 , Figure 2 and Figure 3 As shown, the axial drive assembly 14 includes a drive screw 141, which is rotatably connected to the mounting plate 11. A central cone core 13 is detachably connected to the drive screw 141 via a connecting post 142, allowing the operator to easily connect and disconnect the central cone core 13. The operator uses a special tool to rotate the drive screw 141, which rotates under the constraint of the mounting plate 11. This rotational motion is converted into the axial linear motion of the central cone core 13. When the central cone core 13 moves forward, it pushes the inner cylinder petal 12 to open radially outward, achieving the connection and engagement with the ball joint nut. When the central cone core 13 moves backward, the inner cylinder petal 12 retracts radially, loosening the inner sleeve assembly 1 for easy disassembly. Through the rotational motion of the drive screw 141, the manually input rotational torque is converted into a controllable axial displacement of the central cone core 13, thereby achieving the radial synchronous tensioning or retraction of the inner cylinder petal 12.

[0030] In one embodiment, see Figure 1 , Figure 2 and Figure 3 As shown, a guide groove 111 is provided on the mounting plate 11 along the circumferential direction, and a guide boss 121 is provided at the bottom of each inner cylinder petal 12. The guide boss 121 is slidably connected in the guide groove 111. During assembly, each inner cylinder petal 12 is placed on the mounting plate 11 in sequence, so that the bottom guide boss 121 is embedded in the corresponding guide groove 111 to form a sliding connection relationship. When the drive screw 141 rotates, causing the central cone core 13 to move forward along the axial direction, the conical surface of the central cone core 13 presses against the inner inclined surface of each inner cylinder petal 12, and each inner cylinder petal 12 moves outward simultaneously under the action of the radial component force.

[0031] The guide boss 121 slides smoothly along the guide groove 111, so that the inner cylinder petal 12 strictly expands outward in the radial direction, and finally its inner wall forms a uniform fit with the outer wall of the ball joint nut, achieving reliable clamping. When the drive screw 141 rotates in the opposite direction and the central cone core 13 retracts axially, the radial component force disappears, and each inner cylinder petal 12 retracts inward along the guide groove 111 under its own weight or the action of the reset elasticity. The overall inner diameter of the inner sleeve assembly 1 decreases, thus smoothly disengaging from the ball joint nut.

[0032] In one embodiment, see Figure 1 , Figure 2 and Figure 3 As shown, an outer limiting sleeve 15 is also provided on the mounting plate 11. The outer limiting sleeve 15 is an overall annular cylindrical structure, and its inner diameter is slightly larger than the outer diameter of the inner cylinder body 12 in the maximum working state. As the axial drive assembly 14 pushes the central cone core 13 forward, the inner cylinder petal 12 expands radially outward under the action of the cone surface. When the outer side of the inner cylinder petal 12 contacts the inner wall of the outer limiting sleeve 15, its outward stroke is restricted, and the inner cylinder petal 12 stops opening. At this time, the reliable clamping of the ball joint nut is completed. When the central cone core 13 retracts in the opposite direction, the inner cylinder valve 12 loses radial thrust and retracts along the guide groove 111. The outer side of the inner cylinder valve 12 gradually separates from the inner wall of the outer limiting sleeve 15 and returns to the initial contracted state. The inner sleeve assembly 1 can then be removed as a whole.

[0033] In one embodiment, see Figure 1 , Figure 2 and Figure 3 As shown, the connecting assembly 2 includes a mounting cylinder plate 11, which is a high-strength steel ring component. Its inner diameter matches the outer diameter of the mounting cylinder plate 11. It is fixed to the mounting cylinder plate 11 by welding, bolts or interference fit. Several snap-fit ​​grooves 112 are uniformly machined along the circumferential direction on the upper end face or side wall of the mounting cylinder plate 11. The number of snap-fit ​​grooves 112 is preferably 4 to 12 to take into account both uniform force distribution and operational flexibility. The mounting cylinder plate 11 is set on the mounting cylinder plate 11. Several snap-fit ​​grooves 112 are provided along the circumferential direction on the upper part of the mounting cylinder plate 11. Each of the snap-fit ​​grooves 112 is provided with a connecting key 21. The mounting cylinder plate 11 is connected to the wrench assembly 3 through the several connecting keys 21.

[0034] In one embodiment, see Figure 1 , Figure 2 and Figure 4As shown, the wrench assembly 3 includes a wrench ring body 31. The wrench ring body 31 has several mounting grooves 311 inside. The mounting grooves 311 and the snap-fit ​​grooves 112 are connected by connecting keys 21. In use, the inner sleeve assembly 1 is first clamped and fixed to the ball joint nut. Then, the wrench ring body 31 is sleeved on the outside of the mounting sleeve plate 11 so that the mounting grooves 311 are aligned with the corresponding snap-fit ​​grooves 112.

[0035] Insert the connecting key 21 into the channel formed by the mounting slot 311 and the snap-fit ​​slot 112 to complete the connection between the wrench assembly 3 and the connecting assembly 2. The operator applies a rotational torque to the outside of the wrench ring 31. The torque is transmitted sequentially through the wrench ring 31, the connecting key 21 and the mounting sleeve plate 11, and finally acts on the inner sleeve assembly 1, causing the ball joint nut to rotate, thereby achieving disassembly or installation.

[0036] In one embodiment, see Figure 1 , Figure 2 and Figure 3 As shown, flanges 32 are provided on both sides of the wrench ring body 31. When disassembling the ball joint nut, the operator reliably connects the wrench ring body 31 to the mounting cylinder plate 11 through the connecting key 21 and applies rotational torque. The torque is mainly transmitted through the mounting groove 311 via the connecting key 21 and the snap-fit ​​groove 112. When there is an instantaneous impact load caused by corrosion or overtightening, the flanges 32 axially constrain the wrench ring body 31 to prevent it from jumping or dislodging. After disassembly and assembly, the structure of the flanges 32 does not affect the pull-out of the connecting key 21 and the quick disassembly of the wrench assembly 3.

[0037] In one embodiment, see Figure 1 and Figure 2 As shown, a U-shaped gripper groove 4 is provided at the flange 32. When disassembling the ball joint nut, after the operator completes the assembly of the wrench assembly 3 and the connecting assembly 2, the operator inserts the end of the pry bar or lever into the U-shaped gripper groove 4. The operator applies force in the tangential direction of the wrench ring 31, which acts on the flange 32 through the U-shaped gripper groove. The flange 32 transmits the torque to the wrench ring 31, and then to the inner sleeve assembly 1 through the connecting key 21, ultimately driving the ball joint nut to rotate. After disassembly, the external tools can be removed from the U-shaped gripper groove 4 without affecting the quick disassembly and reuse of the wrench assembly 3.

[0038] In one embodiment, see Figure 1 , Figure 2 and Figure 3As shown, a semi-circular groove 5 is also provided above the flange 32. When disassembling or assembling the ball joint nut, the operator places one end of the lever or steel pipe into the semi-circular groove 5, so that it fits against the bottom of the groove. Then, an external force is applied to the lever, and the lever forms a stable fulcrum through the semi-circular groove 5. The applied force is transmitted to the flange 32 through the semi-circular groove 5, and then the flange 32 acts on the wrench ring 31, finally completing the torque transmission. After the operation is completed, the lever can be lifted directly from the semi-circular groove 5 without affecting the quick disassembly and reuse of the wrench assembly 3.

[0039] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. A disassembly and assembly mechanism for the large nut of a converter ball hinge assembly, comprising an inner sleeve assembly (1), characterized in that, The inner sleeve assembly (1) is used to fit onto the outer wall of the ball joint nut, and the inner sleeve assembly (1) is connected to the wrench assembly (3) via the connecting assembly (2).

2. The disassembly and assembly mechanism for the large nut of a converter ball hinge device according to claim 1, characterized in that, The inner sleeve assembly (1) includes a mounting plate (11), on which a plurality of inner sleeve petals (12) are slidably connected. A central cone core (13) is provided inside the plurality of inner sleeve petals (12). An axial drive assembly (14) is connected to the central cone core (13) for driving the central cone core (13) to move axially.

3. The disassembly and assembly mechanism for the large nut of a converter ball hinge device according to claim 2, characterized in that, The axial drive assembly (14) includes a drive screw (141) which is rotatably connected to the mounting cylinder plate (11). A central cone core (13) is detachably connected to the drive screw (141) via a connecting column (142).

4. The disassembly and assembly mechanism for the large nut of a converter ball hinge device according to claim 3, characterized in that, The mounting plate (11) is provided with a guide groove (111) along the circumferential direction, and the bottom of the inner cylinder petal (12) is provided with a guide boss (121), which is slidably connected in the guide groove (111).

5. The disassembly and assembly mechanism for the large nut of a converter ball hinge device according to claim 2, characterized in that, An outer limiting sleeve (15) is also provided on the mounting cylinder plate (11).

6. The disassembly and assembly mechanism for the large nut of a converter ball hinge device according to claim 2, characterized in that, The connecting component (2) includes several connecting keys (21), and the upper part of the mounting cylinder plate (11) is also provided with several snap-fit ​​grooves (112) along the circumferential direction. Each of the snap-fit ​​grooves (112) is provided with a connecting key (21). The mounting cylinder plate (11) is connected to a wrench assembly (3) through several connecting keys (21).

7. The disassembly and assembly mechanism for the large nut of a converter ball hinge device according to claim 6, characterized in that, The wrench assembly (3) includes a wrench ring body (31), and the wrench ring body (31) has a plurality of mounting slots (311) inside, and a connecting key (21) is engaged between the plurality of mounting slots (311) and the snap-fit ​​slot (112).

8. The disassembly and assembly mechanism for the large nut of a converter ball hinge device according to claim 7, characterized in that, The wrench ring (31) has flanges (32) on both sides.

9. A disassembly and assembly mechanism for the large nut of a converter ball hinge device according to claim 8, characterized in that, A U-shaped gripper groove (4) is provided at the flange (32).

10. A disassembly and assembly mechanism for the large nut of a converter ball hinge device according to claim 9, characterized in that, A semi-circular groove (5) is also provided above the flange (32).

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