Special disassembling and assembling lifting appliance for roller box

Abstract

The utility model relates to a special dismounting and mounting lifting appliance for a roller box, relates to the technical field of lifting equipment, and aims to solve the problems that a traditional lifting mode is high in requirement and has hidden dangers, the special dismounting and mounting lifting appliance comprises a lifting appliance body, and the lifting appliance body is provided with two groups of fixed lifting limbs and two groups of telescopic lifting limbs; the two groups of fixed lifting limbs and the two groups of telescopic lifting limbs are oppositely arranged on the lifting appliance body, lifting hooks for hanging are arranged on the fixed lifting limbs and the telescopic lifting limbs, each group of telescopic lifting limbs comprises a screw rod and a movable rod, the screw rod is vertically arranged on the lifting appliance body, one end of the screw rod is rotationally connected to the lifting appliance body, and the other end of the screw rod is rotationally connected to the movable rod. The other end of the lead screw is matched with a movable rod, a threaded groove for being connected with the lead screw is formed in the movable rod, a lifting hook corresponding to the telescopic lifting limb is connected to the end, away from the lead screw, of the movable rod, and a rotating mechanism used for driving the lead screw to rotate is arranged on the lifting appliance body. The roller box has the effects of reducing the dismounting difficulty of the roller box and improving the hoisting installability.

Description

Technical Field

[0001] The present application relates to the technical field of lifting equipment, and in particular to a special lifting device for disassembling and assembling a roller box. Background Art

[0002] The rolling mill roll box is the core component of the high-bar and high-wire rolling production line. It undertakes the key task of precision rolling and forming of bars and wires. Its stable operation is directly related to the efficiency of the production line and the quality of products. During the production process, the rolling mill roll box is subject to high-intensity workload for a long time, and it is inevitable that failures or wear will occur. At this time, the roll box needs to be replaced as a whole.

[0003] In the related art, when the roller box is traditionally replaced, since the roller box is installed at an angle, a steel wire rope is generally used in conjunction with a double hook of a crane for lifting. This method requires high operating skills of the crane operator and coordination with the commander, and is prone to misoperation leading to personal injury and equipment damage. Moreover, since the roller box body is tilted to one side and the weight is unbalanced, the roller box is prone to violent shaking and collision during disassembly and installation, and is prone to overturning during lifting, posing a safety hazard and affecting the efficiency of roller box replacement, so it needs to be improved. Utility Model Content

[0004] In order to solve the problem that traditional lifting methods have high requirements and hidden dangers, the present application provides a special roller box disassembly and assembly lifting device.

[0005] The present application provides a special roller box disassembly and assembly lifting device adopting the following technical solutions:

[0006] A special disassembly and assembly sling for a roller box includes a sling body, and the sling body is provided with two groups of fixed slings and two groups of telescopic slings, the two groups of fixed slings and the two groups of telescopic slings are arranged on the sling body opposite to each other, the fixed slings and the telescopic slings are provided with hooks for hanging, each group of the telescopic slings includes a screw rod and a movable rod, the screw rod is vertically arranged on the sling body, one end of the screw rod is rotatably connected to the sling body, the other end of the screw rod is adapted to the movable rod, a threaded groove for connection of the screw rod is opened on the movable rod, the hooks corresponding to the telescopic slings are connected to the end of the movable rod away from the screw rod, and a rotating mechanism for driving the screw rod to rotate is provided on the sling body.

[0007] Since the roller box is installed at an angle, it is generally hoisted using a wire rope in conjunction with a double crane hook. This method requires high operating skills of the crane operator and coordination with the command personnel, and is prone to misoperation, resulting in personal injury and equipment damage. In addition, since the roller box body is tilted to one side, the weight is unbalanced, and the roller box is prone to violent shaking and collision during removal and installation. It is prone to overturning during the hoisting process, posing a safety hazard and affecting the efficiency of roller box replacement. By adopting the above technical solution, including the spreader body, two sets of fixed hanging limbs and two sets of telescopic hanging limbs are all installed on the spreader body;

[0008] When disassembling the roller box, the crane lifts the spreader body, and the rotating mechanism drives the screw to rotate, thereby adjusting the movable rod of the telescopic limb to the appropriate length. (In this process, the auxiliary equipment equipped with the spreader itself is used to constrain the movable rod to a certain extent, ensuring that it can be raised and lowered on the screw). In this step, it is necessary to ensure that the lengths of the two sets of telescopic limbs are consistent to maintain the balance of the spreader. Then, the hooks of the fixed limbs and the telescopic limbs on the spreader are respectively hung on the lifting rings on the roller box. With the help of the crane operation, the roller box is removed smoothly and quickly. After removing the roller box, continue to adjust the lengths of the two telescopic limbs and adjust the roller box to a horizontal position.

[0009] When installing the roller box, the length of the telescopic hanging limbs is consistent with that of the fixed hanging limbs to ensure the balance of the spreader. The hook of the spreader is hung on the lifting ring of the roller box, the crane is started, and the roller box is lifted and transported to the installation position. The length of the two telescopic hanging limbs is fine-tuned by the rotating mechanism, and the roller box is adjusted to a close installation angle. At the same time, the operation of the crane is coordinated to adjust the roller box smoothly and accurately to the installation position to complete the installation.

[0010] Through the settings of fixed lifting limbs, telescopic lifting limbs and rotating mechanisms, this device has a simple structure and low maintenance cost, which can make the disassembly and assembly and lifting process smoother, greatly reducing the difficulty of disassembly and assembly of the roller box, shortening maintenance time, improving work efficiency, and having more fault tolerance for crane operators. It solves the problem of external pulling and unloading that may exist in traditional lifting methods when facing oblique objects, and improves the lifting and installation performance.

[0011] Optionally, the sling body includes a fixed plate and a movable plate, an edge slide bar for adjusting the spacing is provided between the fixed plate and the movable plate, the two groups of fixed slings are arranged on the fixed plate, and the two groups of telescopic slings are arranged on the movable plate.

[0012] By adopting the above technical solution, the spreader body includes a fixed plate and a movable plate, and the movable plate realizes spacing adjustment with the fixed plate through the edge slide bar; through the setting of the fixed plate and the movable plate, the combined design of the fixed plate and the movable plate, the spreader body can be flexibly adjusted according to the actual size and shape of the roller box, and the movable plate can be moved horizontally on the fixed plate through the adjustment of the edge slide bar, thereby changing the spacing between the fixed hanging limb and the telescopic hanging limb, and can be suitable for roller boxes of different specifications and models, thereby improving the versatility and adaptability of the spreader.

[0013] Optionally, a sleeve for the edge slide bar to slide is provided on the movable plate, one end of the edge slide bar is connected to the fixed plate, and the other end of the edge slide bar is slidably connected in the sleeve.

[0014] By adopting the above technical solution, the sleeve is installed on the movable plate, and the edge slide rod slides in the sleeve; through the setting of the sleeve, the sleeve, as a part of the movable plate, provides a stable and smooth sliding track for the edge slide rod, thereby driving the movable plate and the telescopic hanging limb thereon to move horizontally.

[0015] Optionally, a sleeve for supporting the screw rod is provided on the movable plate, and the sleeve is arranged through the movable plate.

[0016] By adopting the above technical solution, the sleeve is installed on the movable plate; through the setting of the sleeve, the main function of the sleeve is to support the screw rod, ensuring that the screw rod can rotate and move stably on the movable plate, which helps to reduce the vibration and shaking of the screw rod during operation and improve the transmission efficiency and stability of the screw rod.

[0017] Optionally, the rotating mechanism is arranged on the movable plate, and the rotating mechanism includes a reduction motor, a worm and two worm wheels. The reduction motor is connected to the surface of the movable plate, and the worm is connected to the output end of the reduction motor. The two worm wheels are respectively arranged at both ends of the length direction of the worm, and the two worm wheels are respectively engaged with the worm. The two screws correspond to two worm wheels respectively, and the worm wheels are sleeved and connected to the corresponding screws.

[0018] By adopting the above technical solution, the rotating mechanism includes a reduction motor, a worm and two worm wheels; when the length of the telescopic lifting limb is adjusted, the reduction motor is started, the worm starts to rotate, and the rotational power of the motor is transmitted to the two worm wheels meshing with it. The two worm wheels also rotate accordingly, and respectively drive the connected lead screws to rotate. The movable rod will move up and down along the lead screw, and can accurately control the extension or retraction length of the telescopic lifting limb, thereby adjusting the inclination angle of the roller box; through the setting of the rotating mechanism, the hoisting requirements of the roller box at different angles can be met, ensuring that the roller box can move smoothly and safely during hoisting or disassembly, thereby enhancing the stability and reliability of the sling.

[0019] Optionally, a counterweight piece for counterweighting is provided on the sling body, and the counterweight piece is arranged on a fixed plate of the sling body.

[0020] By adopting the above technical solution, the counterweight is installed on the fixed plate; through the setting of the counterweight, the counterweight can balance the overall weight distribution of the spreader during operation, so that the spreader maintains a more stable posture, improves the spreader's anti-dumping and anti-rollover capabilities, enables it to maintain a high stability in complex environments, and optimizes the spreader's lifting performance.

[0021] Optionally, the ends of the two fixed hanging limbs are each provided with a movable chain for connecting to a corresponding hook, and the corresponding hook is connected to the movable chain.

[0022] By adopting the above technical solution, the movable chain is installed between the fixed lifting limb and the hook; through the setting of the movable chain, the movable chain makes the connection between the hook and the fixed lifting limb more flexible, and can rotate and swing freely within a certain range to adapt to lifting objects of different shapes and sizes.

[0023] Optionally, the sling body is further provided with a four-limb sling chain for cooperating with the crane, and the four-limb sling chain is connected to the top of the sling body.

[0024] By adopting the above technical solution, the four-limb lifting chain is installed on the sling body; through the setting of the four-limb lifting chain, the four-limb lifting chain is connected through multiple points, which can significantly improve the stability of the sling during the lifting process, disperse the weight of the hoisted object, reduce the situation of excessive force on a single point, and reduce the risk of damage to the sling and the hoisted object.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] By setting up fixed lifting limbs, telescopic lifting limbs and rotating mechanisms, this device has a simple structure and low maintenance cost, which can make the disassembly and assembly and lifting process smoother, greatly reducing the difficulty of disassembly and assembly of the roller box, shortening maintenance time, improving work efficiency, and providing more fault tolerance for the crane operator. It solves the problem of external pulling and unloading that may exist in traditional lifting methods when facing oblique objects, and improves the lifting and installation performance;

[0027] By setting the fixed plate and the movable plate, and the combined design of the fixed plate and the movable plate, the spreader body can be flexibly adjusted according to the actual size and shape of the roller box. By adjusting the edge slide bar, the movable plate can be moved horizontally on the fixed plate, thereby changing the distance between the fixed hanging limb and the telescopic hanging limb. It can be applied to roller boxes of different specifications and models, improving the versatility and adaptability of the spreader;

[0028] The setting of the rotating mechanism can meet the hoisting requirements of the roller box at different angles, ensuring that the roller box can move smoothly and safely during hoisting or disassembly, and enhancing the stability and reliability of the spreader. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a special roller box disassembly and assembly lifting device in an embodiment of the present application.

[0030] Figure 2 It is a top view of a special disassembly and assembly device for a roller box in an embodiment of the present application.

[0031] Figure 3 It is a structural schematic diagram used to reflect that the roller box is in a horizontal state in the embodiment of the present application.

[0032] Explanation of the accompanying reference numerals: 1. sling body; 11. fixed plate; 12. movable plate; 2. fixed sling; 3. telescopic sling; 31. screw; 32. movable rod; 4. hook; 5. threaded groove; 6. rotating mechanism; 61. reduction motor; 62. worm; 63. worm gear; 7. edge slide; 8. sleeve; 9. sleeve; 10. movable chain; 13. counterweight; 14. four-limb sling chain. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-3 This application is described in further detail.

[0034] The embodiment of the present application discloses a special disassembly and assembly tool for roller boxes. Figure 1 The special disassembly and assembly sling for the roller box includes a sling body 1, and a four-limb sling chain 14 is installed on the top of the sling body 1. In this embodiment, the four-limb sling chains 14 are connected at multiple connection points. The sling body 1 cooperates with the crane through the four-limb sling chains 14, which can significantly improve the stability of the sling during the lifting process, disperse the weight of the hoisted object, reduce the situation of excessive force on a single point, and reduce the risk of damage to the sling and the hoisted object.

[0035] Reference Figure 1 and Figure 2 The sling body 1 includes a fixed plate 11 and a movable plate 12. Two groups of fixed hanging limbs 2 and two groups of telescopic hanging limbs 3 are installed on the sling body 1. The two groups of fixed hanging limbs 2 are installed at intervals on the fixed plate 11, and the two groups of telescopic hanging limbs 3 are installed at intervals on the movable plate 12. At the same time, the two groups of fixed hanging limbs 2 and the two groups of telescopic hanging limbs 3 are installed opposite to each other.

[0036] Reference Figure 1 and Figure 2An edge slide bar 7 is installed between the fixed plate 11 and the movable plate 12, and a sleeve 8 is fixed on the movable plate 12. One end of the edge slide bar 7 is installed and fixed on the fixed plate 11, and the other end of the edge slide bar 7 is slidably connected to the sleeve 8. In this embodiment, the combination of the edge slide bar 7 and the sleeve 8 can be multiple groups. At the same time, the sling body 1 is equipped with a cylinder component for driving the movable plate 12 to move, so that the sling body 1 can be flexibly adjusted according to the actual size and shape of the roller box. Through the adjustment of the edge slide bar 7, the movable plate 12 can move horizontally on the fixed plate 11, thereby changing the spacing between the fixed hanging limb 2 and the telescopic hanging limb 3, which can be suitable for roller boxes of different specifications and models, thereby improving the versatility and adaptability of the sling.

[0037] Reference Figure 1 The two groups of fixed hanging limbs 2 and the two groups of telescopic hanging limbs 3 are both equipped with hooks 4. In this embodiment, the hooks 4 are used to cooperate with the lifting rings of the roller box. The hooks 4 are hung on the corresponding lifting rings. A movable chain 10 is installed at the end of each fixed hanging limb 2. The movable chain 10 is located at the end of the fixed hanging limb 2 away from the fixed plate 11. The corresponding hook 4 is installed on the movable chain 10. The movable chain 10 makes the connection between the hook 4 and the fixed hanging limb 2 more flexible, and can rotate and swing freely within a certain range to adapt to hoisting objects of different shapes and sizes.

[0038] Reference Figure 1 Each set of telescopic hanging limbs 3 includes a screw rod 31 and a movable rod 32. The screw rod 31 is rotatably mounted on the movable plate 12 of the sling body 1. The screw rod 31 is vertically arranged in a direction away from the sling body 1. The corresponding hook 4 of the telescopic hanging limb 3 is fixedly mounted on the end of the movable rod 32. In this embodiment, a sleeve 9 is installed on the movable plate 12, and the screw rod 31 passes through the sleeve 9. The main function of the sleeve 9 is to support the screw rod 31, ensuring that the screw rod 31 can rotate and move stably on the movable plate 12, which helps to reduce the vibration and shaking of the screw rod 31 during operation and improve the transmission efficiency and stability of the screw rod 31.

[0039] Reference Figure 1 The movable rod 32 is adapted to the screw rod 31. The movable rod 32 is installed at one end of the screw rod 31 away from the movable plate 12. A thread groove 5 is provided on the movable rod 32. The thread groove 5 is opened along the length direction of the movable rod 32. The screw rod 31 is threadedly connected to the thread groove 5 of the movable rod 32.

[0040] Reference Figure 2 and Figure 3A rotating mechanism 6 is installed on the sling body 1. In this embodiment, the rotating mechanism 6 is used to drive the screw 31 to rotate. The rotating mechanism 6 is installed on the movable plate 12 of the sling body 1. The rotating mechanism 6 includes a reduction motor 61, a worm 62 and two worm wheels 63. The reduction motor 61 is installed on the surface of the movable plate 12. The worm 62 is connected to the output end of the reduction motor 61. The worm 62 and the reduction motor 61 can be connected through a coupling. At the same time, a supporting component for supporting the rotation of the worm 62 is installed on the movable plate 12 of the sling body 1.

[0041] Reference Figure 2 , the two worm gears 63 correspond to the two screw rods 31 respectively, the worm gears 63 are sleeved and installed on the corresponding screw rods 31, the two worm gears 63 are respectively arranged at the two ends of the length direction of the worm 62, and the two worm gears 63 are respectively engaged with the worm 62; when the length of the telescopic hanging limb 3 is adjusted, the reduction motor 61 is started, the worm 62 starts to rotate, and the rotational power of the motor is transmitted to the two worm gears 63 engaged with it, and the two worm gears 63 also rotate accordingly, and respectively drive the screw rods 31 connected to them to rotate, and the movable rod 32 will move up and down along the screw rod 31. In this embodiment, the hook 4 of the telescopic hanging limb 3 is not hung on the roller When the hoist is on the roller box lifting ring, the length of the telescopic hanging limb 3 is adjusted. It is necessary to use the auxiliary equipment equipped with the sling body 1 itself to realize certain constraints on the movable rod 32 to ensure that it can be raised and lowered on the screw rod 31. When the hook 4 of the telescopic hanging limb 3 is hung on the roller box lifting ring, the length of the telescopic hanging limb 3 is adjusted. The cooperation of the hook 4 and the lifting ring realizes the constraint effect on the movable rod 32 without the use of the equipped auxiliary equipment; the rotating mechanism 6 can accurately control the extension or retraction length of the telescopic hanging limb 3, thereby adjusting the inclination angle of the roller box, ensuring that the roller box can move smoothly and safely during lifting or disassembly, and enhancing the stability and reliability of the sling.

[0042] Reference Figure 2 A counterweight 13 is installed on the fixed plate 11 of the sling body 1, and the counterweight 13 is located between the two fixed sling legs 2; the counterweight 13 can balance the overall weight distribution of the sling during operation, so that the sling maintains a more stable posture, improves the sling's anti-dumping and anti-rollover capabilities, enables it to maintain a high stability in complex environments, and optimizes the sling's lifting performance.

[0043] The implementation principle of a special disassembly and assembly sling for a roller box in the embodiment of the present application is as follows: when the roller box is disassembled, the crane lifts the crane body 1, and the rotating mechanism 6 drives the screw rod 31 to rotate, thereby adjusting the movable rod 32 of the telescopic sling 3 to an appropriate length. (In this process, the crane itself is equipped with auxiliary equipment to realize certain constraints on the movable rod 32 to ensure that it can move up and down on the screw rod 31). This step requires ensuring that the lengths of the two sets of telescopic slings 3 are consistent to maintain the balance of the sling. Then, the hooks 4 of the fixed sling 2 and the telescopic sling 3 on the sling are respectively hung on the lifting rings on the roller box, and the crane operation is cooperated to disassemble the roller box smoothly and quickly. After disassembling the roller box, the lengths of the two telescopic slings 3 are continued to be adjusted, and the roller box is adjusted to a horizontal position. In this process, the edge slide bar 7 and the sleeve 8 are used to cooperate to realize the movement of the movable plate 12, so that the distance between the fixed sling 2 and the telescopic sling 3 is automatically adjusted to maintain the stability of the roller box.

[0044] When installing the roller box, the length of the telescopic hanging limb 3 is consistent with that of the fixed hanging limb 2 to ensure the balance of the sling. The hook 4 of the sling is hung on the lifting ring of the roller box, the crane is started, the roller box is lifted and transported to the installation position, and the length of the two telescopic hanging limbs 3 is fine-tuned by the rotating mechanism 6 to adjust the roller box to a close installation angle. At the same time, cooperate with the operation of the crane to adjust the roller box smoothly and accurately to the installation position to complete the installation.

[0045] Through the arrangement of fixed hanging limbs 2, telescopic hanging limbs 3 and rotating mechanism 6, the device has a simple structure and low maintenance cost, can make the disassembly and assembly and lifting process smoother, greatly reduces the difficulty of disassembly and assembly of the roller box, shortens the maintenance time, improves work efficiency, and has more fault tolerance for the operation of the crane operator, solves the problem of external pulling and unloading that may exist in traditional lifting methods when facing oblique objects, and improves the lifting and installation performance.

[0046] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A special lifting device for disassembling and assembling a roller box, characterized by: The invention comprises a sling body (1), wherein the sling body (1) is provided with two groups of fixed sling limbs (2) and two groups of telescopic sling limbs (3), the two groups of fixed sling limbs (2) and the two groups of telescopic sling limbs (3) are arranged on the sling body (1) relative to each other, the fixed sling limbs (2) and the telescopic sling limbs (3) are both provided with hooks (4) for hanging, and each group of telescopic sling limbs (3) includes a screw rod (31) and a movable rod (32), and the screw rod (31) is arranged vertically. On the sling body (1), one end of the screw rod (31) is rotatably connected to the sling body (1), and the other end of the screw rod (31) is adapted to the movable rod (32). The movable rod (32) is provided with a threaded groove (5) for connecting the screw rod (31). The hook (4) corresponding to the telescopic limb (3) is connected to the end of the movable rod (32) away from the screw rod (31). The sling body (1) is provided with a rotating mechanism (6) for driving the screw rod (31) to rotate.

2. The roller box special disassembly and assembly lifting device according to claim 1, characterized in that: The sling body (1) comprises a fixed plate (11) and a movable plate (12), an edge slide bar (7) for adjusting the spacing is provided between the fixed plate (11) and the movable plate (12), two groups of the fixed sling limbs (2) are arranged on the fixed plate (11), and two groups of the telescopic sling limbs (3) are arranged on the movable plate (12).

3. The special roller box disassembly and assembly lifting device according to claim 2, characterized in that: The movable plate (12) is provided with a sleeve (8) for the edge slide bar (7) to slide. One end of the edge slide bar (7) is connected to the fixed plate (11), and the other end of the edge slide bar (7) is slidably connected in the sleeve (8).

4. The special roller box disassembly and assembly lifting device according to claim 2, characterized in that: The movable plate (12) is provided with a sleeve (9) for supporting the screw rod (31), and the sleeve (9) is arranged through the movable plate (12).

5. The special roller box disassembly and assembly lifting device according to claim 2, characterized in that: The rotating mechanism (6) is arranged on the movable plate (12), and the rotating mechanism (6) includes a reduction motor (61), a worm (62) and two worm wheels (63). The reduction motor (61) is connected to the surface of the movable plate (12), the worm (62) is connected to the output end of the reduction motor (61), the two worm wheels (63) are respectively arranged at both ends of the worm (62) in the length direction, the two worm wheels (63) are respectively engaged with the worm (62), the two lead screws (31) correspond to the two worm wheels (63), and the worm wheels (63) are sleeved and connected to the corresponding lead screws (31).

6. The special roller box disassembly and assembly lifting device according to claim 5, characterized in that: The sling body (1) is provided with a counterweight (13) for counterweighting, and the counterweight (13) is arranged on a fixing plate (11) of the sling body (1).

7. The special roller box disassembly and assembly lifting device according to claim 1, characterized in that: The ends of the two fixed hanging limbs (2) are both provided with a movable chain (10) for connecting to the corresponding hooks (4), and the corresponding hooks (4) are connected to the movable chain (10).

8. The special roller box disassembly and assembly lifting device according to claim 7, characterized in that: The sling body (1) is also provided with a four-limb sling chain (14) for cooperating with the crane, and the four-limb sling chain (14) is connected to the top of the sling body (1).

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