Crown block for electroslag remelting

Abstract

The utility model relates to the technical field of crown blocks, and provides a crown block for electroslag remelting, which comprises a support rod and a moving structure, a cross beam is fixed at the top end of the support rod, a bottom plate is fixed at the bottom end of the support rod, and the moving structure is fixed inside the cross beam. The moving structure is arranged, the motor is started to drive the worm to rotate, the spiral structure on the outer side of the worm is connected with the tooth surface of the worm gear in a meshed mode, and then through rotation of the worm, motion of the spiral surface of the worm is converted into rotation motion of the worm gear, so that the worm gear drives the two sets of rotating blocks to slide in the rotating grooves. The first moving block slides in the first sliding groove, the second moving block slides on the outer side of the guide rod through the sliding hole, so that the sliding block plays a role in bearing the second moving block, the second moving block drives the electric hoist to move, and a lifting hook is moved to a lifting position to transport goods; therefore, the overall practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of overhead crane technology, and in particular to an overhead crane for electroslag remelting. Background Technology

[0002] Overhead cranes, also known as bridge cranes, are a special type of lifting machinery. They are lifting equipment that spans across workshops, warehouses, and material yards to lift and transport materials. In the process of electroslag remelting, the electrodes need to be constantly replaced and adjusted. An overhead crane for electroslag remelting is mainly used to lift and move the electrodes to ensure the smooth progress of the electroslag remelting process.

[0003] To address this, patent CN217921047U discloses a steel ladle rotary table lifting device, including a trolley moving beam. Trolley slings are fixed to both sides of the bottom of the trolley moving beam, and hooks are fixed to the lower ends of the slings. Threaded sleeves are fixed to both ends of the bottom of the trolley moving beam near the slings, and threaded posts are threaded to the lower ends of the threaded sleeves. Drive lifting components are provided at both ends of the trolley moving beam. Second hinge blocks are fixed to the lower ends of the threaded posts, and crossbars are rotatably connected within the second hinge blocks. Fixed pins are fixed to both ends of the bottom of the crossbars, and insert sleeves are slidably fitted to the lower ends of the fixed pins. A pressing insertion mechanism is provided at both ends of the crossbars. This invention ensures that the lower part of the crossbar abuts against the rotary table, providing stability and preventing overturning, greatly improving safety during lifting. The insert sleeves are inserted into the positioning holes on the upper part of the rotary table, further ensuring a stable connection between the crossbar and the rotary table.

[0004] Although the ladle slewing platform lifting device mentioned above can adjust the height of the gantry moving beam during use, it is not convenient to move the gantry slings laterally to transport items during hoisting, thus reducing the applicability of the gantry when in use. Utility Model Content

[0005] The purpose of this invention is to provide an overhead crane for electroslag remelting, in order to solve the problem that existing overhead cranes are not easy to move.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a crane for electroslag remelting, including a support rod and a moving structure;

[0007] A crossbeam is fixed to the top of the support rod, a base plate is fixed to the bottom of the support rod, and a movable structure is fixed inside the crossbeam.

[0008] An electric hoist is fixed to the bottom end of the crossbeam, and a wire rope is installed inside the electric hoist. A hook is installed at the bottom end of the wire rope.

[0009] The bottom end of the base plate is fixed with a fixing structure.

[0010] Preferably, the support rods are symmetrically distributed at the bottom end of the crossbeam, and the bottom end of the support rod is fixedly connected to the middle position of the top end of the base plate.

[0011] Preferably, the movable structure includes an internal cavity, a motor, a worm gear, a support plate, a worm wheel, a rotating block, a first movable block, a first sliding groove, a second movable block, a rotating groove, a slider, a second sliding groove, a guide rod, and a sliding hole. The internal cavity is disposed inside the crossbeam. A motor is fixed to one side of the crossbeam. A worm gear is installed on one side inside the internal cavity. A support plate is fixed to one side of the crossbeam at the bottom of the motor. A worm wheel is installed on one side of the worm gear. Rotating blocks are fixed to both ends of the worm wheel. A first movable block is disposed at the top of the internal cavity. A first sliding groove is disposed inside the crossbeam outside the first movable block. A second movable block is disposed at the bottom of the internal cavity. Rotating grooves are disposed on the outer sides of the rotating blocks inside the first and second movable blocks. Slider blocks are fixed to both sides of the second movable block. A second sliding groove is disposed inside the crossbeam outside the slider. Guide rods are fixed to both sides of the bottom of the internal cavity. A sliding hole is disposed inside the second movable block outside the guide rod.

[0012] Preferably, one end of the worm gear extends through one side of the internal cavity to the outside of the crossbeam and is fixedly connected to the output end of the motor. The two ends of the worm gear extend through both sides of the internal cavity to the inside of the support rod and are rotatably connected to the inside of the support rod.

[0013] Preferably, the outer side of the worm gear is meshed with the outer side of the worm, the front view of the rotating block is T-shaped, the rotating block is rotatably connected to the first moving block and the second moving block through rotating grooves, and the second moving block is slidably connected to the guide rod through sliding holes.

[0014] Preferably, the fixing structure includes a pulley, a reinforcing rod, a threaded rod, a threaded groove, a fixing suction cup, and a fixing block. The pulley is fixed to both sides of the bottom end of the base plate. A reinforcing rod is fixed to both sides of the top end of the base plate. A threaded rod is installed on both sides of the inside of the base plate. A threaded groove is provided inside the base plate outside the threaded rod. A fixing suction cup is fixed to the bottom end of the threaded rod, and a fixing block is fixed to the top end of the threaded rod.

[0015] Preferably, the pulleys are symmetrically distributed at the bottom end of the base plate, the reinforcing rods are symmetrically distributed at the top end of the base plate, one end of each reinforcing rod is fixedly connected to both sides of the support rod, the threaded rods are symmetrically distributed inside the base plate, and the threaded rods are threadedly connected to the base plate through threaded grooves.

[0016] The present invention provides an overhead crane for electroslag remelting, which has the advantage of adopting a movable structure. In the process of use, the overhead crane can be moved to the position where it needs to be hoisted and fixed. The position of the electric hoist can be moved to facilitate hoisting and transporting of goods, thereby improving the overall practicality.

[0017] By incorporating a movable structure, the worm gear is rotated by starting the motor. The helical structure on the outer side of the worm gear meshes with the tooth surface of the worm wheel. The rotation of the worm gear converts the motion of its helical surface into the rotational motion of the worm wheel. This causes the worm wheel to drive two sets of rotating blocks to slide inside the rotating groove. This, in turn, causes the first moving block to slide inside the first sliding groove. The second moving block slides outside the guide rod through a sliding hole. This allows the second moving block to drive the electric hoist to move, thus moving the hook to the lifting position to transport the goods, thereby improving the overall practicality.

[0018] By setting up a fixed structure, the overhead crane is moved to the position to be hoisted by pulleys. Then, by rotating the fixed block, the threaded rod is driven to rotate inside the thread groove. The rotation of the thread causes the threaded rod to move the fixed suction cup downward, so that the fixed suction cup is firmly attached to the ground, which makes it easy to fix the overhead crane and prevents the overhead crane from moving during the hoisting process.

[0019] By incorporating a slider, the second moving block slides through a sliding hole on the outside of the guide rod as the worm gear drives it to move. The slider slides inside the crossbeam through a second sliding groove, thus enabling the slider to support the weight of the second moving block. This allows the second moving block to drive the wire rope to lift the material, preventing the guide rod from breaking during the lifting process. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 This is a frontal cross-sectional view of the present invention.

[0022] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0023] Figure 4 This is a side sectional view of the present invention.

[0024] Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point B.

[0025] The reference numerals in the diagram are as follows: 1. Support rod; 2. Crossbeam; 3. Base plate; 4. Moving structure; 401. Internal cavity; 402. Motor; 403. Worm gear; 404. Support plate; 405. Worm wheel; 406. Rotating block; 407. First moving block; 408. First slide groove; 409. Second moving block; 410. Rotating groove; 411. Sliding block; 412. Second slide groove; 413. Guide rod; 414. Sliding hole; 5. Electric hoist; 6. Wire rope; 7. Hook; 8. Fixed structure; 801. Pulley; 802. Reinforcing rod; 803. Threaded rod; 804. Threaded groove; 805. Fixed suction cup; 806. Fixed block. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-5 The present invention provides an overhead crane for electroslag remelting, comprising a support rod 1 and a movable structure 4.

[0028] Reference Figures 2-5As shown, a crossbeam 2 is fixed to the top of the support rod 1. The support rods 1 are symmetrically distributed at the bottom of the crossbeam 2. A base plate 3 is fixed to the bottom of the support rod 1. The bottom of the support rod 1 is fixedly connected to the middle position of the top of the base plate 3. A movable structure 4 is fixed inside the crossbeam 2. The movable structure 4 includes an internal cavity 401, a motor 402, a worm gear 403, a support plate 404, a worm wheel 405, a rotating block 406, a first moving block 407, a first sliding groove 408, a second moving block 409, a rotating groove 410, a slider 411, a second sliding groove 412, a guide rod 413, and a sliding... Hole 414, an internal cavity 401 is disposed inside the crossbeam 2. A motor 402 is fixed to one side of the crossbeam 2. A worm gear 403 is installed on one side inside the internal cavity 401. One end of the worm gear 403 extends through one side of the internal cavity 401 to the outside of the crossbeam 2 and is fixedly connected to the output end of the motor 402. A support plate 404 is fixed to one side of the crossbeam 2 at the bottom end of the motor 402. Both ends of the worm gear 403 extend through both sides of the internal cavity 401 to the inside of the support rod 1 and are rotatably connected to the inside of the support rod 1. A worm wheel 405 is installed on one side of the worm gear 403. The outer side of worm gear 405 is meshed with the outer side of worm gear 403. Rotating blocks 406 are fixed at both ends of worm gear 405. The front view of rotating blocks 406 is T-shaped. A first moving block 407 is provided at the top of the internal cavity 401. A first sliding groove 408 is provided inside the crossbeam 2 outside the first moving block 407. A second moving block 409 is provided at the bottom of the internal cavity 401. Rotating grooves 410 are provided on the outer side of rotating blocks 406 inside both the first and second moving blocks 407 and 409. Rotating blocks 406 respectively interact with the first moving block 407 and the second moving block 409. The moving block 409 is rotatably connected through the rotating groove 410. Slider 411 is fixed on both sides of the second moving block 409. The inner side of the crossbeam 2 outside the slider 411 is provided with a second sliding groove 412. Guide rods 413 are fixed on both sides of the bottom end of the inner cavity 401. The inner side of the second moving block 409 outside the guide rod 413 is provided with a sliding hole 414. The second moving block 409 and the guide rod 413 are slidably connected through the sliding hole 414. An electric hoist 5 is fixed at the bottom end of the crossbeam 2. A wire rope 6 is installed inside the electric hoist 5. A hook 7 is installed at the bottom end of the wire rope 6.

[0029] By starting the motor 402, the worm 403 is driven to rotate. The helical structure on the outer side of the worm 403 meshes with the tooth surface of the worm wheel 405. The rotation of the worm 403 converts the motion of its helical surface into the rotational motion of the worm wheel 405. This causes the worm wheel 405 to drive two sets of rotating blocks 406 to slide inside the rotating groove 410, which in turn causes the first moving block 407 to slide inside the first sliding groove 408. The second moving block 409 slides outside the guide rod 413 through the sliding hole 414, thus causing the second moving block 409 to move the electric hoist 5. The hook 7 is moved to the lifting position to transport the goods, thereby improving the overall practicality. By setting up a slider 411, the second moving block 409 is moved by the worm gear 405, and the second moving block 409 slides on the outside of the guide rod 413 through the sliding hole 414. The slider 411 slides inside the crossbeam 2 through the second sliding groove 412, so that the slider 411 plays a role in bearing the weight of the second moving block 409, so that the second moving block 409 can drive the wire rope 6 to lift the material, thereby preventing the guide rod 413 from breaking during the lifting process.

[0030] Reference Figure 1 and Figure 4 As shown, a fixing structure 8 is fixed to the bottom end of the base plate 3. The fixing structure 8 includes pulleys 801, reinforcing rods 802, threaded rods 803, threaded grooves 804, a fixing suction cup 805, and a fixing block 806. The pulleys 801 are fixed to both sides of the bottom end of the base plate 3 and are symmetrically distributed at the bottom end of the base plate 3. Reinforcing rods 802 are fixed to both sides of the top end of the base plate 3 and are symmetrically distributed at the top end of the base plate 3. One end of the reinforcing rods 802 is fixedly connected to both sides of the support rod 1. Threaded rods are installed on both sides inside the base plate 3. 803, the threaded rods 803 are symmetrically distributed inside the base plate 3. The threaded rods 803 are provided with threaded grooves 804 inside the base plate 3. The threaded rods 803 and the base plate 3 are connected by threaded grooves 804. The bottom end of the threaded rods 803 is fixed with a fixing suction cup 805. The top end of the threaded rods 803 extends to the top end of the base plate 3 and is fixedly connected to the bottom end of the fixing suction cup 805. The top end of the threaded rods 803 is fixed with a fixing block 806. The bottom end of the threaded rods 803 extends to the bottom end of the base plate 3 and is fixedly connected to the top end of the fixing block 806.

[0031] The overhead crane is moved to the position to be hoisted by the pulley 801, and then the fixed block 806 is rotated to drive the threaded rod 803 to rotate inside the threaded groove 804. The rotation of the threaded rod 803 causes the fixed suction cup 805 to move downward, so that the fixed suction cup 805 is firmly attached to the ground, which makes it easy to fix the overhead crane and prevents the overhead crane from moving during the hoisting process.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A crane for electroslag remelting, comprising a support rod (1) and a moving structure (4); Its features are: A crossbeam (2) is fixed to the top of the support rod (1), a base plate (3) is fixed to the bottom of the support rod (1), and a movable structure (4) is fixed inside the crossbeam (2). An electric hoist (5) is fixed to the bottom end of the crossbeam (2), and a wire rope (6) is installed inside the electric hoist (5). A hook (7) is installed at the bottom end of the wire rope (6). The bottom end of the base plate (3) is fixed with a fixing structure (8).

2. The overhead crane for electroslag remelting according to claim 1, characterized in that: The support rods (1) are symmetrically distributed at the bottom end of the crossbeam (2), and the bottom end of the support rods (1) is fixedly connected to the middle position of the top end of the base plate (3).

3. The overhead crane for electroslag remelting according to claim 1, characterized in that: The movable structure (4) includes an internal cavity (401), a motor (402), a worm gear (403), a support plate (404), a worm wheel (405), a rotating block (406), a first moving block (407), a first sliding groove (408), a second moving block (409), a rotating groove (410), a slider (411), a second sliding groove (412), a guide rod (413), and a sliding hole (414). The internal cavity (401) is located inside the crossbeam (2). The motor (402) is fixed on one side of the crossbeam (2). The worm gear (403) is installed on one side inside the internal cavity (401). The support plate (404) is fixed on one side of the crossbeam (2) at the bottom end of the motor (402). The worm wheel (405) is installed on one side of the worm gear (403). Both ends of the worm wheel (405) are... A rotating block (406) is fixed. A first moving block (407) is provided at the top of the built-in cavity (401). A first sliding groove (408) is provided inside the crossbeam (2) on the outer side of the first moving block (407). A second moving block (409) is provided at the bottom of the built-in cavity (401). A rotating groove (410) is provided on the outer side of the rotating block (406) inside the first moving block (407) and the second moving block (409). A slider (411) is fixed on both sides of the second moving block (409). A second sliding groove (412) is provided inside the crossbeam (2) on the outer side of the slider (411). A guide rod (413) is fixed on both sides of the bottom of the built-in cavity (401). A sliding hole (414) is provided inside the second moving block (409) on the outer side of the guide rod (413).

4. The overhead crane for electroslag remelting according to claim 3, characterized in that: One end of the worm (403) extends through one side of the built-in cavity (401) to the outside of the crossbeam (2) and is fixedly connected to the output end of the motor (402). The two ends of the worm (403) extend through both sides of the built-in cavity (401) to the inside of the support rod (1) and are rotatably connected to the inside of the support rod (1).

5. The overhead crane for electroslag remelting according to claim 3, characterized in that: The outer side of the worm gear (405) is meshed with the outer side of the worm (403). The front view of the rotating block (406) is T-shaped. The rotating block (406) is rotatably connected to the first moving block (407) and the second moving block (409) through the rotating groove (410). The second moving block (409) is slidably connected to the guide rod (413) through the sliding hole (414).

6. The overhead crane for electroslag remelting according to claim 1, characterized in that: The fixing structure (8) includes a pulley (801), a reinforcing rod (802), a threaded rod (803), a threaded groove (804), a fixing suction cup (805), and a fixing block (806). The pulley (801) is fixed to both sides of the bottom end of the base plate (3). The reinforcing rod (802) is fixed to both sides of the top end of the base plate (3). The threaded rod (803) is installed on both sides inside the base plate (3). The threaded rod (803) is provided with a threaded groove (804) inside the base plate (3) on the outside. The fixing suction cup (805) is fixed to the bottom end of the threaded rod (803). The fixing block (806) is fixed to the top end of the threaded rod (803).

7. The overhead crane for electroslag remelting according to claim 6, characterized in that: The pulleys (801) are symmetrically distributed at the bottom end of the base plate (3), the reinforcing rods (802) are symmetrically distributed at the top end of the base plate (3), one end of the reinforcing rods (802) is fixedly connected to both sides of the support rods (1), the threaded rods (803) are symmetrically distributed inside the base plate (3), and the threaded rods (803) and the base plate (3) are connected by threaded grooves (804).

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