A large ring forging hot working hoisting device

Abstract

This utility model provides a hoisting device for hot processing of large ring forgings, belonging to the field of ring forging processing equipment. It includes an outer ring with a connecting rod that slides on it. A placement plate is located at the end of the connecting rod, with the end of the placement plate near the outer ring abutting against the end of the ring forging furthest from the outer ring. An inner ring is located on the inner surface of the outer ring, concentrically arranged with the outer ring and rotatably mounted on it. A baffle is located on the outer ring, with the end of the baffle near the outer ring abutting against the end of the placement plate furthest from the outer ring. This utility model is suitable for limiting the movement of ring forgings during hoisting. By adjusting the contact between the baffle and the placement plate, a bidirectional constraint is formed, ensuring stable clamping of the ring forging and preventing swaying or displacement. Furthermore, the telescopic rod connected to the baffle abuts against the inner surface of the ring forging, preventing translational movement of the ring forging.

Description

Technical Field

[0001] This utility model relates to the field of ring forging processing equipment, specifically to a large ring forging hot processing hoisting device. Background Technology

[0002] In the field of hot working of large ring forgings, lifting devices play a crucial role in handling and transferring these forgings. Their core function is to ensure the stability of the ring forgings during lifting and transport, providing a reliable workpiece positioning basis for subsequent processing steps. However, existing ring forging lifting devices have revealed a series of problems that urgently need to be addressed in practical applications.

[0003] In terms of stability, the existing equipment's limiting and restraining mechanism for ring forgings has significant deficiencies. Most equipment only uses a single-directional support surface for lifting, lacking multi-directional limiting constraints, making it difficult to provide comprehensive stability restraint for the ring forgings during hoisting. During lifting, moving, or stopping operations, various forces inevitably arise, such as horizontal inertial forces and forces generated by airflow disturbances. A single support surface cannot effectively counteract the effects of these forces on the ring forgings, causing them to easily sway circumferentially or displace radially during hoisting, potentially leading to workpiece detachment and equipment damage or safety accidents. Utility Model Content

[0004] In view of this, the present invention provides a hoisting device for hot processing of large ring forgings, which can form a two-way constraint by adjusting the baffle and the placement plate to ensure stable clamping of the ring forgings and avoid shaking and displacement. In addition, the telescopic rod connected to the baffle abuts against the inner surface of the ring forgings to prevent the ring forgings from translating.

[0005] To solve the above-mentioned technical problems, this utility model provides a large ring forging hot processing hoisting device, including an outer ring, a connecting rod on the outer ring, the connecting rod being slidable on the outer ring, and a placement plate at its end, the end of the placement plate near the outer ring abutting against the end of the ring forging away from the outer ring, so that the placement plate can support the end of the ring forging. By sliding the connecting rod on the outer ring, and by adjusting the distance between the placement plate and the outer ring, ring forgings of different thicknesses can be clamped. The other end of the connecting rod is connected to a lifting device. When the lifting device pulls the connecting rod, the connecting rod drives the placement plate to lift the ring forging, thus lifting the ring forging.

[0006] An inner ring, concentric with the outer ring, is provided on the inner surface of the outer ring. The inner ring can rotate on the outer ring. The end of the baffle on the outer ring near the outer ring abuts against the end of the placement plate away from the outer ring. The concentric inner and outer rings ensure the coaxiality of the rotational motion. The rotation of the inner ring can drive related components to adjust their angle or position. The contact between the baffle and the placement plate limits the end of the placement plate away from the outer ring. This, combined with the contact between the end of the placement plate near the outer ring and the ring forging, constrains the placement plate in two directions, thereby clamping and fixing the ring forging, keeping it stable, and preventing it from shaking or shifting during hoisting and transportation.

[0007] The outer ring has multiple circumferentially arranged through holes, and the connecting rod is cylindrical, with its outer surface abutting against the inner surface of the through holes. The circumferentially arranged through holes provide a uniformly distributed sliding track for the connecting rod. The contact between the cylindrical connecting rod and the inner surface of the through holes makes the sliding of the connecting rod on the outer ring smoother and more stable. At the same time, it can also withstand a certain radial force, ensuring the stability and reliability of the connecting rod during the sliding process. The multiple through holes also allow for the installation of multiple connecting rods as needed to enhance the stable support of the ring forging. Furthermore, the circular structure of the connecting rod facilitates the rotation of the connecting rod within the through holes, allowing the placement plate to be rotated and placed under the ring forging.

[0008] The inner ring has multiple openings arranged in a circle, and a telescopic rod is slidably installed in the opening. The end of the rod near the outer ring abuts against the inner surface of the ring forging. The inner and outer surfaces of the ring forging are abutted by the connecting rod and the telescopic rod, which limits the ring forging and prevents the ring forging from shifting or rotating around the outer ring axis. The bottom of the telescopic rod is connected to a baffle. The circumferentially arranged openings provide the installation position and sliding path for the telescopic rod. The sliding of the telescopic rod within the openings can drive the baffle to move. By moving the telescopic rod up and down, the position of the baffle can be precisely adjusted to accommodate ring forgings of different thicknesses. The connection between the bottom of the telescopic rod and the baffle ensures the transmission of force. The baffle is located below the placement plate, which lifts the ring forging upwards. The baffle, also located below the placement plate, drives the outer ring downwards, thus clamping and fixing the ring forging through the upward lifting of the placement plate and the downward pressing of the outer ring. Furthermore, the telescopic rod is located on the opposite side of the connecting rod, which can block and fill the blank space on the side of the placement plate away from the connecting rod, preventing the ring forging from falling from the loading point.

[0009] The telescopic rod is rectangular in shape, which gives it good anti-torsion performance during sliding. It can stably transmit force and movement, avoid twisting or deformation due to uneven force, and ensure the accuracy and stability of the baffle movement.

[0010] A rack is provided at the end of the telescopic rod away from the inner surface of the inner ring. A first drive motor is installed at the end of the inner ring, and a gear meshing with the rack is provided at the output end of the first drive motor. The first drive motor serves as a power source, and through the meshing of the gear and rack, the rotational motion of the motor is converted into the linear motion of the telescopic rod, realizing the transmission of power and the conversion of motion form. This transmission method has the advantages of accurate transmission ratio, high transmission efficiency, and reliable operation. It can precisely control the extension and retraction of the telescopic rod, thereby precisely adjusting the position of the baffle so that the baffle abuts against the end of the shelf away from the outer ring.

[0011] A second drive motor is mounted on the outer ring end face, and the output end of the second drive motor has a drive wheel that abuts against the end of the inner ring. The second drive motor transmits its driving force to the inner ring through the contact between the drive wheel and the end of the inner ring, causing the inner ring to rotate on the outer ring, thus realizing the rotation function of the inner ring. This drive method has a simple structure and reliable transmission, and can rotate the inner ring to different angles or positions according to work needs, so as to ensure that the baffle is located at the end of the shelf away from the outer ring and abuts against it.

[0012] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0013] 1. Stable clamping of ring forgings: Through the bidirectional contact constraint of the placement plate and the baffle, combined with the concentric rotation structure of the inner and outer rings, the ring forgings are limited in multiple directions, avoiding circumferential swaying or radial displacement during hoisting and improving stability.

[0014] 2. Adaptable to different workpiece specifications: The connecting rod can slide radially along the outer ring through hole, and the telescopic rod can precisely adjust the position of the baffle through gear and rack transmission, which can flexibly adapt to the clamping requirements of ring forgings of different thicknesses.

[0015] 3. Reliable transmission and easy adjustment: The gear and rack transmission has the characteristics of accurate transmission ratio and high efficiency, and can accurately control the extension and retraction of the telescopic rod; the second drive motor drives the inner ring to rotate through the drive wheel, realizing the circumferential position adjustment of the baffle, which is convenient to operate and has a simple and reliable structure.

[0016] 4. Enhanced support stability: The circumferentially arranged through holes and connecting rods are evenly distributed, the cylindrical connecting rods fit smoothly with the through holes, and the rectangular telescopic rods have good torsional resistance, ensuring stable force transmission and improving the overall support reliability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of a large ring forging hot working hoisting device according to the present invention;

[0018] Figure 2 This is a bottom view of the structure of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Outer ring; 2. Connecting rod; 3. Shelf plate; 4. Inner ring; 5. Baffle; 6. Through hole; 7. Opening; 8. Telescopic rod; 9. Rack; 10. First drive motor; 11. Gear; 12. Second drive motor; 13. Drive wheel. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-2 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0021] like Figure 1-2 As shown:

[0022] This embodiment provides a lifting device for hot-working large ring forgings, including an outer ring 1. Multiple cylindrical through holes 6 are evenly distributed circumferentially on the end face of the outer ring 1, with the axis of the through holes 6 aligned radially with the outer ring 1. A cylindrical connecting rod 2 passes through the through holes 6, its outer surface slidingly contacting the inner surface of the through holes 6 to form a radial sliding pair. One end of the connecting rod 2 extends to the outside of the outer ring 1, with a mounting plate 3 fixed to the end; the other end is used to connect to lifting equipment (such as a hook or wire rope). The end of the mounting plate 3 near the outer ring 1 is designed as a flat surface, contacting the end of the ring forging away from the outer ring 1 (i.e., the inner edge of the ring forging), forming a support surface for the end of the ring forging. When the lifting equipment pulls the connecting rod 2 upwards, the mounting plate 3 lifts the ring forging upwards through the contact surface; simultaneously, the connecting rod 2 can slide radially along the through holes 6. By adjusting the distance between the mounting plate 3 and the outer ring 1, the device can accommodate the clamping requirements of ring forgings of different thicknesses. Multiple circumferentially arranged connecting rods 2 can be adjusted synchronously or independently to enhance the uniform support for the ring forging.

[0023] like Figure 1 , 2 As shown:

[0024] An inner ring 4 is coaxially arranged inside the outer ring 1. The inner ring 4 is connected to the outer ring 1 via a bearing or sliding fit structure and can rotate around the axis of the outer ring 1. Multiple rectangular openings 7 are evenly distributed circumferentially around the inner ring 4, with the openings 7 aligned radially with the inner ring 4. A rectangular telescopic rod 8 is slidably installed inside. The cross-sectional design of the rectangular telescopic rod 8 enhances torsional resistance, preventing deformation due to uneven force during sliding and ensuring the linear accuracy and force transmission stability of the baffle 5. The bottom of the telescopic rod 8 (the end closest to the center of the inner ring 4) is fixedly connected to the baffle 5, which is located below the shelf 3. The rotation of the inner ring 4, through its coaxial design, ensures motion accuracy, driving the telescopic rod 8 and the baffle 5 to rotate synchronously, achieving circumferential adjustment of the baffle 5's position and facilitating its movement below the shelf 3.

[0025] like Figure 1 , 2 As shown:

[0026] The end of the baffle 5 near the outer ring 1 abuts against the end of the placement plate 3 away from the outer ring 1, forming a bidirectional constraint with the structure of the ring forging with the inner side of the placement plate 3. When the placement plate 3 lifts the ring forging upward, the baffle 5 restricts the displacement of the outer side of the placement plate 3 through the contact surface, and together with the relative position of the inner ring 4 and the outer ring 1, forms a stable clamping of the ring forging, preventing swaying or displacement during hoisting.

[0027] like Figure 1 , 2 As shown:

[0028] A rack 9 is installed at the end of the telescopic rod 8 furthest from the center of the inner ring 4 (outer end), with the rack 9 aligned with the sliding direction of the telescopic rod 8. A first drive motor 10 is fixedly mounted at the end of the inner ring 4, and a gear 11 is coaxially connected to the motor's output shaft. The gear 11 meshes with the rack 9 to form a gear 11-rack 9 transmission pair. The first drive motor 10 converts rotational motion into linear motion of the telescopic rod 8 through the gear 11-rack 9 transmission. When the motor rotates forward, the gear 11 drives the rack 9 to extend the telescopic rod 8 towards the outer ring 1, pushing the baffle 5 closer to the outer side of the shelf 3; when the motor rotates in reverse, the telescopic rod 8 retracts inward, and the baffle 5 moves away from the shelf 3. By precisely controlling the motor speed and direction, the position of the baffle 5 can be steplessly adjusted to adapt to the clamping clearance requirements of ring forgings of different thicknesses.

[0029] like Figure 1 , 2 As shown:

[0030] A second drive motor 12 is fixedly mounted on the end face of the outer ring 1, and the motor output shaft is connected to a drive wheel 13 (such as a rubber wheel). The drive wheel 13 abuts against the outer circumferential surface of the inner ring 4, forming a friction transmission that drives the baffle 5 to rotate. When the baffle 5 is below the placement plate 3, the first drive motor 10 drives the telescopic rod 8 to move upward, so that the baffle 5 abuts against the placement plate 3. The second drive motor 12 drives the drive wheel 13 to rotate, which drives the inner ring 4 to rotate around the axis of the outer ring 1 through friction. The rotation of the inner ring 4 can adjust the circumferential position of the telescopic rod 8 and the baffle 5, so that the baffle 5 is aligned with the contact point on the outside of the placement plate 3, or adjust the overall clamping angle according to the hoisting orientation requirements of the ring forging. This drive method has a simple structure, reliable transmission, and can achieve arbitrary angle positioning of the inner ring 4.

[0031] Working principle: The lifting equipment pulls the cylindrical connecting rod 2 through the cylindrical through hole 6 of the outer ring 1. The placement plate 3 at the end of the connecting rod 2 contacts the inner edge of the ring forging through a plane and lifts it upward. At the same time, the connecting rod 2 can slide radially along the through hole 6 to adjust the distance between the placement plate 3 and the outer ring 1 to accommodate ring forgings of different thicknesses. The coaxial inner ring 4 inside the outer ring 1 rotates around the axis of the outer ring 1 through a bearing or sliding fit. The bottom of the rectangular telescopic rod 8 in the circumferential rectangular opening 7 of the inner ring 4 is fixedly connected to the baffle 5. The rotation of the inner ring 4 drives the telescopic rod 8 and the baffle 5 to adjust their positions circumferentially to below the placement plate 3. The rack 9 at the outer end of the telescopic rod 8 and the end of the inner ring 4 The output shaft gear 11 of the first drive motor 10 meshes, and the forward and reverse rotation of the motor drives the telescopic rod 8 to extend and retract linearly through the gear 11 and rack 9, pushing the baffle 5 closer to or away from the outer side of the placement plate 3 and making contact with it, forming a two-way constraint on the placement plate 3; the output shaft drive wheel 13 of the second drive motor 12 at the end face of the outer ring 1 contacts the outer circumferential surface of the end of the inner ring 4, and drives the inner ring 4 to rotate around the axis of the outer ring 1 through friction transmission, adjusting the circumferential position of the telescopic rod 8 and the baffle 5 to align with the contact point on the outer side of the placement plate 3 or to adapt to the hoisting orientation requirements. Finally, through the lifting of the placement plate 3, the limiting of the baffle 5 and the rotation adjustment of the inner ring 4, the ring forging is stably clamped and hoisted and transported.

[0032] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A large ring forging hot working hoisting device, characterized in that: Includes an outer ring (1), on which a connecting rod (2) is provided, the connecting rod (2) slides on the outer ring (1), and at the end of the connecting rod (2) is a placement plate (3), the end of the placement plate (3) near the outer ring (1) abuts against the end of the ring forging away from the outer ring (1), and the other end of the ring forging abuts against the end of the outer ring (1) near the placement plate (3), and the ring forging is located between the placement plate (3) and the outer ring (1); The outer ring (1) has an inner ring (4) on its inner surface. The inner ring (4) is concentrically arranged with the outer ring (1). The inner ring (4) is rotatably arranged on the outer ring (1). The outer ring (1) has a baffle (5). The end of the baffle (5) near the outer ring (1) abuts against the end of the shelf (3) away from the outer ring (1).

2. A large ring forging hot working hoisting device according to claim 1, characterized in that: The outer ring (1) has multiple through holes (6) arranged in a circular pattern.

3. A large ring forge piece hot working hoisting device according to claim 2, characterized in that: The connecting rod (2) is cylindrical, and the outer surface of the connecting rod (2) abuts against the inner surface of the through hole (6).

4. A large ring forge piece hot working hoisting device according to claim 3, characterized in that: The inner ring (4) has multiple openings (7) arranged in a circle. A telescopic rod (8) is slidably provided in the opening (7). The bottom of the telescopic rod (8) is connected to the baffle (5).

5. A large ring forge piece hot working hoisting device according to claim 4, characterized in that: The telescopic rod (8) is rectangular in shape.

6. A large ring forge piece hot working hoisting device according to claim 5, characterized in that: The telescopic rod (8) has a rack (9) at one end away from the inner surface of the inner ring (4), and the end of the inner ring (4) has a first drive motor (10). The output end of the first drive motor (10) has a gear (11), and the gear (11) meshes with the rack (9).

7. A large ring forge piece hot working hoisting device as claimed in claim 6, characterized in that: The outer ring (1) has a second drive motor (12) on its end face, and the output end of the second drive motor (12) has a drive wheel (13), which abuts against the end of the inner ring (4).

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