Anti-falling roller lifting appliance

Abstract

The utility model discloses an anti-drop roller lifting appliance, which belongs to the field of roller lifting appliances and comprises a top plate and electric hydraulic pushers respectively mounted on two sides of the upper surface of the top plate, an adjusting mechanism is mounted on the lower surface of the top plate, and an anti-drop mechanism is mounted on the surface of the adjusting mechanism. The anti-falling mechanism comprises two lifting hook main bodies which are respectively mounted on the surface of the adjusting mechanism, and sliding grooves are formed in the surfaces of the lifting hook main bodies; through cooperative use of the devices, after the lifting hook body and the lifting lug are connected, the lifting hook body moves upwards, so that the lifting lug pushes the elastic pushing plate to move, the mutual pushing blocks push the arc-shaped plate to slide in the lifting hook body, the arc-shaped plate seals the lifting hook body, and therefore the lifting lug is prevented from being separated from the lifting hook body; according to the roller lifting appliance, the roller lifting appliance is safer when lifting a roller, and the lifting hook main body can be supported through mutual cooperation of the elastic plate and the supporting plate.

Description

Technical Field

[0001] This utility model relates to the field of roll lifting equipment technology, specifically an anti-detachment roll lifting equipment. Background Technology

[0002] The main working parts and tools on a rolling mill that cause continuous plastic deformation of metal. A rolling mill roll mainly consists of three parts: the roll body, the roll neck, and the shaft end. The roll body is the middle part of the roll that actually participates in the rolling of the metal. It has a smooth cylindrical or grooved surface. The roll neck is mounted in a bearing and transmits the rolling force to the mill stand through the bearing housing and the pressing device. The drive end shaft end is connected to a gear housing via a connecting shaft, transmitting the rotational torque of the motor to the roll. Rolls can be arranged in two-roll, three-roll, four-roll, or multi-roll configurations within the rolling mill stand.

[0003] When transporting and installing rolling mill rolls, it is generally necessary to use rolling mill roll lifting equipment.

[0004] An investigation revealed that a Chinese utility model patent (publication number: CN218809830U) discloses a single-roll lifting device, comprising a lifting beam, with adjusting plates symmetrically arranged near both ends of the beam. A position adjusting assembly is installed between the adjusting plates and the beam. First shackles are symmetrically installed near the bottom of the adjusting plates, and a first wire rope tether is installed on both shackles. Hanging lugs are symmetrically fixed to the top of the beam, and second shackles are installed on each lug, with second wire rope tethers installed on the second shackles. Telescopic columns are symmetrically installed at the bottom of the beam. This utility model facilitates the stable lifting of rolls of different lengths, avoiding the problem of excessively large lifting angles and preventing the rolls from tilting during lifting.

[0005] Although the aforementioned patent utilizes a structure including a lifting beam, adjusting plate, and position adjustment assembly, allowing for convenient hoisting of single rolls by attaching a first wire rope sling to the bottom of the adjusting plate and adjusting the position of the adjusting plate on the lifting beam according to the length of the single roll, thus meeting the hoisting needs of rolls of different lengths and ensuring the lifting points are perpendicular to both ends of the load after the lifting rope is lifted, avoiding excessively large lifting angles and guaranteeing the stability of the roll hoisting, the hoisting of the rolls is still problematic. Generally, the movement of the rolls is achieved through the interaction of the lifting lugs and hooks. However, when using the hook, it is not possible for it to automatically close when moving the lifting lugs, potentially causing the lugs and hooks to detach, resulting in the roll falling off. This not only affects the safety of nearby workers but also damages the roll.

[0006] Therefore, this utility model provides an anti-detachment roll hanger to solve the above problems. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] This utility model provides an anti-detachment roll hanger, which aims to solve the problems mentioned in the background art.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, this utility model provides the following technical solution: an anti-detachment roll hanger, comprising a top plate and electro-hydraulic actuators respectively installed on both sides of the upper surface of the top plate, an adjustment mechanism installed on the lower surface of the top plate, and an anti-detachment mechanism installed on the surface of the adjustment mechanism;

[0011] The anti-detachment mechanism includes two hook bodies respectively installed on the surface of the adjustment mechanism. The surface of the hook body is provided with a sliding groove. An elastic push plate is slidably connected inside the sliding groove. An arc-shaped push block is fixedly connected to the lower surface of the elastic push plate. An arc-shaped plate is fixedly connected to one side of the arc-shaped push block. The arc-shaped plate is slidably connected to the inside of the hook body. A support plate is fixedly connected to the surface of the hook body. An elastic plate is fixedly connected inside the support plate. The elastic plate is fixedly connected to the arc-shaped push block. The arc-shaped plate corresponds to the hook body.

[0012] As a preferred technical solution of this application, an elastic friction pad is fixedly connected to the inner arc surface of the hook body, the elastic friction pad corresponds to the elastic push plate, and the upper surfaces of the two hook bodies are fixedly connected to a mounting plate by bolts, and an electromagnetic plate is fixedly connected to the lower surface of the mounting plate.

[0013] As a preferred technical solution of this application, the electromagnetic plate corresponds to the hook body, the lower surface of the hook body is fixedly connected to an elastic sleeve, and a number of corresponding limiting rods are slidably inserted into the surface of the elastic sleeve.

[0014] As a preferred technical solution of this application, a collar is fixedly connected to the surface of several limiting rods. The collar is fixedly connected to the top plate, the collar corresponds to the elastic sleeve, and the elastic sleeve corresponds to the hook body.

[0015] As a preferred technical solution of this application, the adjustment mechanism includes a bidirectional motor fixedly connected to the middle of the lower surface of the top plate. Both output ends of the bidirectional motor are fixedly connected to threaded rods with opposite threads. The surfaces of the threaded rods are threaded with support frames, and the two support frames are respectively corresponding to the hook bodies.

[0016] As a preferred technical solution of this application, the support frame is slidably connected to the top plate through threaded rods, and one end of each of the two threaded rods is rotatably connected to a fixed rod through a rotating shaft, and the fixed rod is fixedly connected to the top plate.

[0017] (III) Beneficial Effects

[0018] By incorporating anti-detachment mechanisms and other structural elements, after the hook body is connected to the lifting lug, the upward movement of the hook body causes the lifting lug to push the elastic push plate, which in turn pushes the arc-shaped plate inside the hook body to slide. This allows the arc-shaped plate to enclose the hook body, preventing the lifting lug from detaching from the hook body. This makes the roll lifting device safer when lifting the roll. Furthermore, the cooperation between the elastic plate and the support plate not only supports the hook body, preventing deformation due to the hollow structure of the hook body, which would affect the lifting of the roll, but also allows the arc-shaped push block to automatically reset, thus resetting the arc-shaped plate and facilitating disassembly after the roll is lifted.

[0019] By adjusting the structure of the mechanism, the two output ends of the bidirectional motor rotate in the same direction. When the bidirectional motor is started, the two threaded rods rotate, causing the two support frames to move closer or further apart, thereby causing the anti-detachment mechanism to move accordingly. By adjusting the distance between the two anti-detachment mechanisms, the anti-detachment mechanism can lift rolls of different lengths.

[0020] The elastic sleeve and the collar work together to make the roll more stable during hoisting. The collar can be fitted onto the roll surface, making the roll more stable during hoisting. The collar can also be used to support the ends of rolls of different lengths, making the roll hoist stable when hoisting different rolls. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an anti-detachment roll lifting device;

[0022] Figure 2 This is a structural schematic diagram from a second perspective of an anti-detachment roll lifting device;

[0023] Figure 3 This is a schematic diagram of the anti-detachment mechanism in an anti-detachment roll hanger;

[0024] Figure 4 A schematic diagram of the structure of an elastic plate in an anti-detachment roll hanger;

[0025] Figure 5 This is a schematic diagram of the elastic sleeve in an anti-detachment roll hanger.

[0026] In the picture:

[0027] 1. Top plate; 2. Hook body; 3. Sliding groove; 4. Elastic push plate; 5. Arc-shaped push block; 6. Arc-shaped plate; 7. Support plate; 8. Elastic plate; 9. Elastic friction pad; 10. Mounting plate; 11. Electromagnetic plate; 12. Elastic sleeve; 13. Limiting rod; 14. Collar; 15. Bidirectional motor; 16. Threaded rod; 17. Support frame; 18. Fixing rod. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] This utility model provides an anti-detachment roll lifting device, such as... Figures 1-5 As shown, an anti-detachment roll lifting device includes a top plate 1 and electro-hydraulic actuators respectively installed on both sides of the upper surface of the top plate 1. An adjustment mechanism is installed on the lower surface of the top plate 1. The adjustment mechanism includes a bidirectional motor 15 fixedly connected to the middle of the lower surface of the top plate 1. The two output ends of the bidirectional motor 15 are fixedly connected to threaded rods 16. The threads of the two threaded rods 16 are opposite. The surface threads of the threaded rods 16 are connected to support frames 17. The two support frames 17 are respectively corresponding to the hook bodies 2. According to the roll length, the bidirectional motor 15 is started, so that its two output ends drive the two threaded rods 16 to rotate in the same direction. By setting the threads of the two threaded rods 16 to be opposite, the two support frames 17 move in opposite directions, thereby adjusting the distance between the two support frames 17 and adjusting the distance between the hook bodies 2.

[0030] The support frame 17 is slidably connected to the top plate 1 via threaded rods 16. One end of each of the two threaded rods 16 is rotatably connected to a fixed rod 18 via a rotating shaft. The fixed rod 18 is fixedly connected to the top plate 1. The setting of the fixed rod 18 makes the threaded rod 16 more stable when rotating.

[0031] An anti-detachment mechanism is installed on the surface of the adjustment mechanism. The anti-detachment mechanism includes two hook bodies 2 respectively installed on the surface of the adjustment mechanism. The upper surfaces of the two hook bodies 2 are fixedly connected to the mounting plate 10 by bolts. The lower surface of the mounting plate 10 is fixedly connected to the electromagnetic plate 11. The electromagnetic plate 11 corresponds to the hook body 2. After the hook body 2 is closed, the electromagnetic plate 11 is energized, thereby generating a magnetic force. The magnetic force attracts the roll, thereby making the roll more stable during hoisting.

[0032] An elastic sleeve 12 is fixedly connected to the lower surface of the hook body 2. Several corresponding limiting rods 13 are slidably inserted into the surface of the elastic sleeve 12. A collar 14 is fixedly connected to the surface of the several limiting rods 13. The collar 14 is fixedly connected to the top plate 1. The collar 14 corresponds to the elastic sleeve 12, and the elastic sleeve 12 corresponds to the hook body 2. When the hook body 2 lifts the roll, the elastic sleeve 12 and the collar 14 are both sleeved on the surface of the roll, making the roll more stable during lifting. Furthermore, by setting the elastic sleeve 12 to follow the movement of the hook body 2, the elastic sleeve 12 can be sleeved on rolls of different lengths, so that the roll lifting device can stably lift rolls of different lengths.

[0033] The surface of the hook body 2 is provided with a sliding groove 3. An elastic push plate 4 is slidably connected inside the sliding groove 3. An arc-shaped push block 5 is fixedly connected to the lower surface of the elastic push plate 4. An arc-shaped plate 6 is fixedly connected to one side of the arc-shaped push block 5. The arc-shaped plate 6 is slidably connected inside the hook body 2. The hook body 2 is inserted into the lifting lug. By moving the hook body 2 upward, the lifting lug is made to fit with the elastic push plate 4, thereby pushing the arc-shaped push block 5 to move, so that the arc-shaped plate 6 slides inside the hook body 2, so that the arc-shaped plate 6 seals the hook body 2, preventing the lifting lug from detaching from the hook body 2 and causing the roller to fall off.

[0034] A support plate 7 is fixedly connected to the surface of the hook body 2, and an elastic plate 8 is fixedly connected inside the support plate 7. By setting the support plate 7 and the elastic plate 8, not only can the strength of the hook body 2 be improved, but also the arc-shaped push block 5 can be automatically reset by the elastic force of the elastic plate 8, which makes it easier to disassemble the rolls later.

[0035] The elastic plate 8 is fixedly connected to the arc-shaped push block 5, and the arc-shaped plate 6 corresponds to the hook body 2. The inner arc surface of the hook body 2 is fixedly connected to the elastic friction pad 9. Through the setting of the elastic friction pad 9 and the elastic push plate 4, when the lifting lug is tightly attached to the hook body 2, the lifting lug squeezes the elastic push plate 4 and the elastic friction pad 9 to deform, thereby further limiting the lifting lug and making the lifting lug more stable when moving. The elastic friction pad 9 corresponds to the elastic push plate 4.

[0036] Specifically, when this roll hanger is used: according to the length of the roll, the bidirectional motor 15 is started, so that its two output ends drive the two threaded rods 16 to rotate in the same direction. By setting the threads on the surfaces of the two threaded rods 16 in opposite directions, the two support frames 17 move in opposite directions, thereby adjusting the distance between the two support frames 17 and adjusting the distance of the hook body 2, so that the hook body 2 can be used for rolls of different lengths.

[0037] When hoisting the roll, the hook body 2 is inserted into the lifting lug. The hook body 2 moves upward, causing the lifting lug to come into contact with the elastic push plate 4, which in turn pushes the arc-shaped push block 5 to move. This causes the arc-shaped plate 6 to slide inside the hook body 2, thus sealing the hook body 2 and preventing the lifting lug from detaching from the hook body 2 and causing the roll to fall off. After the hook body 2 is sealed, the electromagnetic plate 11 is energized, which generates a magnetic force. This magnetic force attracts the roll, making the roll more stable during hoisting.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A roll lifting device for preventing roll slippage, comprising a top plate (1) and electro-hydraulic actuators respectively installed on both sides of the upper surface of the top plate (1), characterized in that: An adjustment mechanism is installed on the lower surface of the top plate (1), and an anti-detachment mechanism is installed on the surface of the adjustment mechanism; The anti-detachment mechanism includes two hook bodies (2) respectively installed on the surface of the adjustment mechanism. The surface of the hook body (2) is provided with a sliding groove (3). An elastic push plate (4) is slidably connected inside the sliding groove (3). An arc-shaped push block (5) is fixedly connected to the lower surface of the elastic push plate (4). An arc-shaped plate (6) is fixedly connected to one side of the arc-shaped push block (5). The arc-shaped plate (6) is slidably connected inside the hook body (2). A support plate (7) is fixedly connected to the surface of the hook body (2). An elastic plate (8) is fixedly connected inside the support plate (7). The elastic plate (8) is fixedly connected to the arc-shaped push block (5). The arc-shaped plate (6) corresponds to the hook body (2).

2. The anti-detachment roll lifting device according to claim 1, characterized in that: An elastic friction pad (9) is fixedly connected to the inner arc surface of the hook body (2). The elastic friction pad (9) corresponds to the elastic push plate (4). The upper surfaces of the two hook bodies (2) are fixedly connected to a mounting plate (10) by bolts. An electromagnetic plate (11) is fixedly connected to the lower surface of the mounting plate (10).

3. The anti-detachment roll lifting device according to claim 2, characterized in that: The electromagnetic plate (11) corresponds to the hook body (2). An elastic sleeve (12) is fixedly connected to the lower surface of the hook body (2). Several corresponding limiting rods (13) are slidably inserted into the surface of the elastic sleeve (12).

4. The anti-detachment roll lifting device according to claim 3, characterized in that: A collar (14) is fixedly connected to the surface of several limiting rods (13). The collar (14) is fixedly connected to the top plate (1). The collar (14) corresponds to the elastic sleeve (12). The elastic sleeve (12) corresponds to the hook body (2).

5. The anti-detachment roll lifting device according to claim 1, characterized in that: The adjustment mechanism includes a bidirectional motor (15) fixedly connected to the middle of the lower surface of the top plate (1). Both output ends of the bidirectional motor (15) are fixedly connected to threaded rods (16). The threads of the two threaded rods (16) are opposite. The surface of the threaded rods (16) is threadedly connected to a support frame (17). The two support frames (17) are respectively corresponding to the hook body (2).

6. The anti-detachment roll lifting device according to claim 5, characterized in that: The support frame (17) is slidably connected to the top plate (1) via threaded rods (16). One end of each of the two threaded rods (16) is rotatably connected to a fixed rod (18) via a rotating shaft. The fixed rod (18) is fixedly connected to the top plate (1).

Images