A precision cold-rolled steel strip lifting device

Abstract

This invention discloses a precision cold-rolled steel strip lifting device, relating to the field of steel strip lifting technology. The precision cold-rolled steel strip lifting device includes: a mounting box, with a hanging plate fixedly mounted on the top of the mounting box; and a support mechanism located on the outside of the mounting box, comprising a connecting box, a fixed rod, a first spring, a movable box, a fixed plate, a first rack, and a first gear. Two sets of connecting boxes are arranged below the mounting box. Two sets of fixed rods are fixedly mounted on the inner side of the connecting boxes. A first spring and a slider are sleeved on the outer side of the fixed rods. The first spring is fixedly mounted on the top of the slider. A movable box is fixedly mounted between the two sets of sliders. A fixed plate is fixedly mounted on the inner side of the movable box. Four openings are provided on the outer side of the movable box. A first rack is fixedly mounted on the inner side of the connecting box. An opening is provided on one side of the movable box, and a first rotating rod is rotatably mounted within the opening. The first rotating rod is rotatably mounted on one side of the fixed plate.

Description

Technical Field

[0001] This invention relates to the field of steel strip lifting technology, and in particular to a precision cold-rolled steel strip lifting device. Background Technology

[0002] An existing precision cold-rolled steel strip lifting device is not suitable for different inner diameters of steel coils when lifting them. If the inner diameter is too large, the boom cannot fit snugly against the inner diameter, causing the coil to sway and move slowly, reducing work efficiency and practicality. It is also difficult to lift the coil stably, as the coil sways and rotates during lifting, making it difficult to secure. This can cause friction and damage to the lifting equipment, reducing its service life. Furthermore, it is difficult to secure the telescopic boom, which can cause the coil to tilt during lifting, making it difficult to control the direction of the telescopic boom's sliding and extension, potentially leading to the coil falling and posing safety hazards, thus reducing the device's effectiveness. Summary of the Invention

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a precision cold-rolled steel strip lifting device that can solve the problems of difficulty in adapting to different inner diameters of steel coils, difficulty in stably lifting steel coils, and difficulty in fixing the telescopic boom.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a precision cold-rolled steel strip lifting device, comprising:

[0005] Mounting box, the top of which is fixedly mounted with a hanging plate;

[0006] A support mechanism is located on the outside of the mounting box. The support mechanism includes a connecting box, a fixed rod, a first spring, a movable box, a fixed plate, a first rack, and a first gear. Two sets of connecting boxes are provided below the mounting box. Two sets of fixed rods are fixedly installed on the inner side of the connecting box. A first spring and a slider are sleeved on the outer side of the fixed rod. The first spring is fixedly installed on the top of the slider. A movable box is fixedly installed between the two sets of sliders. A fixed plate is fixedly installed on the inner side of the movable box. Four sets of openings are opened on the outer side of the movable box. A first rack is fixedly installed on the inner side of the connecting box. An opening is opened on one side of the movable box. A first rotating rod is rotatably installed in the opening. The first rotating rod is rotatably installed on one side of the fixed plate. A first gear is fixedly installed on the outer wall of the first rotating rod. The first gear is located in the two sets of openings and meshes with the first rack.

[0007] The hoisting mechanism includes a fixing mechanism, a telescopic mechanism, and a positioning mechanism. The fixing mechanism is located outside the mounting box and below the support mechanism, the telescopic mechanism is located outside the mounting box and above the fixing mechanism, and the positioning mechanism is located outside the mounting box and below the telescopic mechanism.

[0008] Preferably, the support mechanism further includes a first rotating rod, a connecting plate, a mounting plate, a support rod, a support plate, a push rod, and a rotating disk. Two sets of connecting plates are rotatably mounted on the outer wall of the first rotating rod. One set of connecting plates is fixedly mounted on one side of the movable box. Multiple sets of mounting plates are fixedly mounted between the two sets of connecting plates. Five sets of sliding grooves are opened on the outer side of the connecting plates. Support rods are slidably mounted in the sliding grooves. Support plates are fixedly mounted on the outer side of the support rods. Two sets of rotating disks are fixedly mounted on the outer wall of the first rotating rod. Five sets of guide grooves are opened on the outer side of the rotating disks. Push rods are provided in the guide grooves. Push rods are fixedly mounted on the outer side of the support rods.

[0009] Preferably, the fixing mechanism includes a second rotating rod, a second gear, a guide plate, a transmission disc, a telescopic rod, a mounting cover, a connecting rod, a moving plate, a mounting cylinder, a connecting telescopic rod, a protective plate, and a second rack. An installation opening is provided on the other side of the moving box, and the second rotating rod is rotatably mounted within the installation opening. The second rotating rod is rotatably mounted on the other side of the fixing plate. A second gear is fixedly mounted on the outer wall of the second rotating rod, and the second gear is located within two other sets of openings. A second rack is fixedly mounted on the inner side of the connecting box, and the second gear and the second rack mesh with each other. A guide plate is rotatably mounted on the outer wall of the second rotating rod, and the guide plate is fixedly mounted on the moving box. On the other side, a mounting cover is fixedly installed on the outer side of the guide plate. The second rotating rod is rotatably installed on the inner side of the mounting cover. Four sets of slots are opened on the outer side of the guide plate. Telescopic rods are slidably installed in the slots. A transmission disc is fixedly installed on the outer wall of the second rotating rod. Four sets of moving slots are opened on the outer side of the transmission disc. Connecting rods are set in the moving slots. Connecting rods are fixedly installed on the outer side of the telescopic rods. Moving plates are fixedly installed on the outer side of the moving plates. Mounting cylinders are fixedly installed on the outer side of one set of mounting cylinders. Connecting telescopic rods are fixedly installed on the inner side of one set of mounting cylinders. Connecting telescopic rods are slidably installed on the inner side of another set of mounting cylinders. A protective plate is fixedly installed on the outer side of the mounting cylinders.

[0010] Preferably, the telescopic mechanism includes a transmission connecting rod, a third gear, a first telescopic arm, a second telescopic arm, a third rack, a cylinder, a telescopic connecting rod, and a drive plate. The transmission connecting rod is fixedly installed on the inner side of the mounting box. The third gear is rotatably installed on the outer wall of the transmission connecting rod. An installation opening is provided on the outer side of the mounting box. The first telescopic arm is slidably installed in one set of installation openings, and the second telescopic arm is slidably installed in another set of installation openings. One set of connecting boxes is fixedly installed at the bottom of the first telescopic arm, and another set of connecting boxes is fixedly installed at the bottom of the second telescopic arm. Two sets of first springs and two sets of fixing rods are fixedly installed at the bottom of the first telescopic arm, and two more sets of first springs and two more sets of fixing rods are fixedly installed at the bottom of the second telescopic arm. A third rack is fixedly installed on the outer side of the first and second telescopic arms, and the third rack is located inside the mounting box and meshes with the third gear. A cylinder is fixedly installed at the bottom of the mounting box, and a connection opening is provided at the bottom of the mounting box. A drive plate is fixedly installed at the bottom of the second telescopic arm, and the drive plate is located within the connection opening. A telescopic connecting rod is fixedly installed at the telescopic end of the cylinder, and a drive plate is fixedly installed at one end of the telescopic connecting rod.

[0011] Preferably, the positioning mechanism includes a sleeve, a sliding guide plate, a second spring, a fixed mounting plate, a fixed connecting rod, a rotating cylinder, a fourth gear, a fourth rack, a pull rope, a pull plate, a third spring, a positioning rod, a bottom support plate, and mounting wheels. A sleeve is provided on the outer side of the first and second telescopic arms. A vertical groove is formed at the top of the first and second telescopic arms, and a sliding guide plate is slidably installed within the vertical groove. A second spring is fixedly installed on the top of the sliding guide plate, and the second spring is fixedly installed on the inner side of the vertical groove. The sleeve is fixedly installed on the outer side of the sliding guide plate. Two sets of second springs are fixedly installed on the outer side of the first telescopic arm, and a fixed connecting rod is fixedly installed between the two sets of second springs. A rotatable support is mounted on the outer wall of the fixed connecting rod. The device consists of a rotating cylinder and two sets of fourth gears. The fourth gears are fixedly installed on the outside of the rotating cylinder. A fourth rack is fixedly installed on the inside of a set of sleeves, and the fourth rack and fourth gear mesh with each other. A pull rope is fixedly installed on the outside of the rotating cylinder. A groove is opened on the inside of the first telescopic arm, and the pull rope is placed in the groove. A mounting groove is opened on the top of the first telescopic arm, and a pull plate is placed in the mounting groove. The pull rope is fixedly installed on the bottom of the pull plate. Two sets of third springs are fixedly installed on the bottom of the pull plate, and the third springs are fixedly installed on the inside of the mounting groove. Multiple sets of through holes are opened on the top of the mounting box, and positioning rods are placed in two sets of through holes. The positioning rods are fixedly installed on the top of the pull plate. A bottom support plate is fixedly installed on the bottom of the sleeve, and mounting wheels are fixedly installed on the bottom of the bottom support plate.

[0012] Preferably, a mounting pad is fixedly installed on the outer side of the support plate, and the mounting pad and the protective plate are made of rubber.

[0013] Preferably, a steel coil is sleeved on the outer side of the support plate, the inner side of the steel coil is in contact with the outer side of the mounting pad, and the outer side of the steel coil is in contact with the inner side of the protective plate.

[0014] Preferably, the outer side of the hanging plate has three sets of connection ports, and the outer side of the mounting box is provided with lifting equipment. The hanging plate is hung on the connecting hook of the lifting equipment through the connection ports.

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

[0016] 1. This precision cold-rolled steel strip lifting equipment, through the coordinated use of a connecting box, a fixed rod, a first spring, a movable box, a fixed plate, a first rack, a first gear, a first rotating rod, a connecting plate, a mounting plate, a support rod, a support plate, a push rod, and a rotating disk, can control the start of the lifting equipment by placing the steel coil on the outside of the mounting plate. Pulling the entire device upward, the slider and movable box descend under the guidance of the fixed rod due to the weight of the steel coil, causing the first spring to extend and retract, causing the first gear and the first rack to mesh and drive the first rotating rod to rotate, causing the rotating disk to rotate, causing the guide groove of the rotating disk to rotate and push the push rod in the guide groove to move, causing the push rod to push the support rod to slide in the groove of the connecting plate, causing the mounting plate to extend outward, and causing the outside of the mounting pad to fit against the inside of the steel coil, supporting the inside of the steel coil. This facilitates the adaptation to steel coils of different inner diameters, reduces the swaying of the steel coil during the lifting process, improves work efficiency, and is highly practical.

[0017] 2. This precision cold-rolled steel strip lifting equipment, through the coordinated use of a second rotating rod, a second gear, a guide plate, a transmission disc, a telescopic rod, a mounting cover, a connecting rod, a moving plate, a mounting cylinder, a connecting telescopic rod, and a protective plate, enables the downward movement of the moving box to cause the second gear and the second rack to mesh and drive the second rotating rod to rotate. The second rotating rod rotates in the opposite direction to the first rotating rod, causing the transmission disc to rotate. This causes the moving groove of the transmission disc to rotate, pushing the connecting rod within the moving groove to move. The connecting rod then pushes the telescopic rod to slide within the groove, causing the moving plate to retract inward. This, in turn, causes the mounting cylinder and the protective plate to retract inward, ensuring that the outer side of the protective plate fits against the outer side of the steel coil, providing a more stable fixation of the steel coil. This reduces wear on the device and extends its service life during lifting, preventing the steel coil from shaking or swaying during hoisting.

[0018] 3. This precision cold-rolled steel strip lifting equipment, through the coordinated use of a casing, sliding guide plate, second spring, fixed mounting plate, fixed connecting rod, rotating drum, fourth gear, fourth rack, pull rope, pull plate, third spring, positioning rod, bottom support plate, and mounting wheel, can lower the entire device by controlling the start of the lifting equipment, so that the bottom of the mounting wheel is in contact with the ground, and four sets of protective plates are set on the outside of the steel coil. Controlling the start of the lifting equipment causes the mounting box to descend, compressing the second spring, and the sliding guide plate slides in the vertical groove, causing the fourth gear to descend and mesh with the fourth rack, driving the rotating drum to rotate and wind up the pull rope. The pull rope pulls the pull plate downward, causing the third spring, positioning rod, bottom support plate, and mounting wheel to move downward. Spring compression sets the positioning rod within the mounting slot, controlling the cylinder's activation. This causes the telescopic connecting rod to extend and retract, moving the drive plate. The second telescopic arm moves, engaging the third rack and gear, which in turn moves the first telescopic arm. The extension and retraction of both the first and second telescopic arms ensures the mounting plate is positioned inside the steel coil. When the outer side of the connecting box aligns with the outer side of the steel coil, the lifting equipment is activated. As the mounting box rises, the pull rope loosens, repositioning the positioning rod within the perforation. This fixes the positions of the first and second telescopic arms, preventing movement during hoisting, preventing the steel coil from falling, reducing safety hazards, and improving the device's effectiveness. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is a side view of the present invention;

[0021] Figure 2 This is a side view of the mounting box of the present invention;

[0022] Figure 3 This is a top view of the mounting box of the present invention;

[0023] Figure 4 This is a cross-sectional view of the movable box of the present invention;

[0024] Figure 5 This is a side view of the mounting plate of the present invention;

[0025] Figure 6 This is a cross-sectional view of the transmission disc of the present invention;

[0026] Figure 7 This is a cross-sectional view of the rotating disk of the present invention;

[0027] Figure 8 This is a cross-sectional view of the connecting box of the present invention;

[0028] Figure 9 This is an enlarged view of part A of the present invention;

[0029] Figure 10 This is an enlarged view of part B of the present invention;

[0030] Figure 11 This is an enlarged view of part C of the present invention;

[0031] Figure 12 This is an enlarged view of part D of the present invention;

[0032] Figure 13 This is a top view of the steel coil of the present invention;

[0033] Figure 14 This is an enlarged view of part E of the present invention.

[0034] Reference numerals: 1. Mounting box; 2. Support mechanism; 201. Connecting box; 202. Fixing rod; 203. First spring; 204. Moving box; 205. Fixing plate; 206. First rack; 207. First gear; 208. First rotating rod; 209. Connecting plate; 210. Mounting plate; 211. Support rod; 212. Support plate; 213. Push rod; 214. Rotating disk; 215. Slider; 3. Fixing mechanism; 301. Second rotating rod; 302. Second gear; 303. Guide plate; 304. Transmission disk; 305. Telescopic rod; 306. Mounting cover; 307. Connecting rod; 308. Moving plate; 309. Mounting cylinder; 310. Connecting telescopic rod; 311. Protective plate 312. Second rack; 4. Telescopic mechanism; 401. Transmission connecting rod; 402. Third gear; 403. First telescopic arm; 404. Second telescopic arm; 405. Third rack; 406. Cylinder; 407. Telescopic connecting rod; 408. Drive plate; 5. Positioning mechanism; 501. Sleeve box; 502. Sliding guide plate; 503. Second spring; 504. Fixed mounting plate; 505. Fixed connecting rod; 506. Rotating cylinder; 507. Fourth gear; 508. Fourth rack; 509. Pull rope; 510. Pull plate; 511. Third spring; 512. Positioning rod; 513. Bottom support plate; 514. Mounting wheel; 6. Hanging plate; 7. Steel coil; 8. Mounting pad; 9. Lifting equipment. Detailed Implementation

[0035] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0036] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0037] In the description of this invention, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0038] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0039] Example 1: Please refer to Figure 1-14 This invention provides a technical solution: a precision cold-rolled steel strip lifting device, comprising: a mounting box 1, wherein a hanging plate 6 is fixedly installed on the top of the mounting box 1; a support mechanism 2, disposed on the outside of the mounting box 1, the support mechanism 2 comprising a connecting box 201, a fixing rod 202, a first spring 203, a movable box 204, a fixing plate 205, a first rack 206, and a first gear 207; two sets of connecting boxes 201 are disposed below the mounting box 1; two sets of fixing rods 202 are fixedly installed on the inner side of the connecting box 201; a first spring 203 and a slider 215 are sleeved on the outer side of the fixing rods 202; the first spring 203 is fixedly installed on the top of the slider 215; a movable box 204 is fixedly installed between the two sets of sliders 215; a fixing plate 205 is fixedly installed on the inner side of the movable box 204; the movable box 204... Four sets of openings are provided on the outer side of 04. A first rack 206 is fixedly installed on the inner side of the connecting box 201. An opening is provided on one side of the movable box 204. A first rotating rod 208 is rotatably installed in the opening. The first rotating rod 208 is rotatably installed on one side of the fixed plate 205. A first gear 207 is fixedly installed on the outer wall of the first rotating rod 208. The first gear 207 is located in two sets of openings and meshes with the first rack 206. The lifting mechanism includes a fixing mechanism 3, a telescopic mechanism 4, and a positioning mechanism 5. The fixing mechanism 3 is located on the outer side of the mounting box 1 and below the support mechanism 2. The telescopic mechanism 4 is located on the outer side of the mounting box 1 and above the fixing mechanism 3. The positioning mechanism 5 is located on the outer side of the mounting box 1 and below the telescopic mechanism 4, which improves work efficiency and has strong practicality.

[0040] Furthermore, the support mechanism 2 also includes a first rotating rod 208, a connecting plate 209, a mounting plate 210, a support rod 211, a support plate 212, a push rod 213, and a rotating disk 214. Two sets of connecting plates 209 are rotatably mounted on the outer wall of the first rotating rod 208. One set of connecting plates 209 is fixedly mounted on one side of the movable box 204. Multiple sets of mounting plates 210 are fixedly mounted between the two sets of connecting plates 209. Five sets of sliding grooves are opened on the outer side of the connecting plate 209, and the support rod 211 is slidably mounted in the sliding grooves. A support plate 212 is fixedly installed on the outer side of the support rod 211. Two sets of rotating disks 214 are fixedly installed on the outer wall of the first rotating rod 208. Five sets of guide grooves are opened on the outer side of the rotating disks 214. Push rods 213 are installed in the guide grooves and are fixedly installed on the outer side of the support rod 211. A mounting pad 8 is fixedly installed on the outer side of the support plate 212. The mounting pad 8 and the protective plate 311 are made of rubber. A steel coil 7 is sleeved on the outer side of the support plate 212. The inner side of the steel coil 7 is flush with the outer side of the mounting pad 8. The outer side of the steel coil 7 is fitted to the inner side of the protective plate 311. Three sets of connection ports are provided on the outer side of the hanging plate 6. A lifting device 9 is installed on the outer side of the mounting box 1. The hanging plate 6 is hung on the connecting hook of the lifting device 9 through the connection ports. The lifting device 9 can be started by fitting the steel coil 7 onto the outer side of the mounting plate 210. Pulling the entire device upwards causes the slider 215 and the moving box 204 to descend under the guidance of the fixed rod 202, causing the first spring 203 to extend and retract, thus... A gear 207 meshes with a first rack 206, driving the first rotating rod 208 to rotate, causing the rotating disk 214 to rotate. This causes the guide groove of the rotating disk 214 to rotate, pushing the push rod 213 in the guide groove to move. The push rod 213 then pushes the support rod 211 to slide in the groove of the connecting plate 209, causing the mounting plate 210 to extend outward. This allows the outer side of the mounting pad 8 to fit against the inner side of the steel coil 7, providing support for the inner side of the steel coil 7. This facilitates adaptation to steel coils of different inner diameters and reduces swaying of the steel coil during hoisting.

[0041] Example 2: Please refer to Figure 1-14Based on Embodiment 1, the fixing mechanism 3 includes a second rotating rod 301, a second gear 302, a guide plate 303, a transmission disc 304, a telescopic rod 305, a mounting cover 306, a connecting rod 307, a moving plate 308, a mounting cylinder 309, a connecting telescopic rod 310, a protective plate 311, and a second rack 312. An installation opening is provided on the other side of the moving box 204, and the second rotating rod 301 is rotatably mounted within the installation opening. The second rotating rod 301 is rotatably mounted on the other side of the fixing plate 205. A second gear 302 is fixedly mounted on the outer wall of the second rotating rod 301. 2. A second rack 312 is fixedly installed inside the connecting box 201 within the other two sets of openings. The second gear 302 meshes with the second rack 312. A guide plate 303 is rotatably installed on the outer wall of the second rotating rod 301. The guide plate 303 is fixedly installed on the other side of the movable box 204. A mounting cover 306 is fixedly installed on the outer side of the guide plate 303. The second rotating rod 301 is rotatably installed inside the mounting cover 306. Four sets of slots are opened on the outer side of the guide plate 303, and a telescopic rod 305 is slidably installed in the slots. A transmission disc 304 is fixedly installed on the outer wall of the second rotating rod 301. Four sets of movable slots are provided on the outer side of 304. A connecting rod 307 is installed in the movable slot. The connecting rod 307 is fixedly installed on the outer side of the telescopic rod 305. A movable plate 308 is fixedly installed on the outer side of the telescopic rod 305. An installation cylinder 309 is fixedly installed on the outer side of the movable plate 308. A connecting telescopic rod 310 is fixedly installed on the inner side of one set of installation cylinders 309. The connecting telescopic rod 310 is slidably installed on the inner side of another set of installation cylinders 309. A protective plate 311 is fixedly installed on the outer side of the installation cylinder 309. The downward movement of the movable box 204 can cause the second gear 302 and the second rack 312 to mesh and transmit motion. The first rotating rod 208 rotates in the opposite direction to the second rotating rod 301, which in turn rotates the transmission disc 304. This causes the moving groove of the transmission disc 304 to rotate, pushing the connecting rod 307 within the moving groove to move. The connecting rod 307 then pushes the telescopic rod 305 to slide within the groove, causing the moving plate 308 to retract inward. This, in turn, causes the mounting cylinder 309 and the protective plate 311 to retract inward, making the outer side of the protective plate 311 fit against the outer side of the steel coil 7. This provides a more stable fixation of the steel coil 7, preventing it from rotating and swaying during hoisting, reducing wear on the device, and extending its service life.

[0042] The telescopic mechanism 4 includes a transmission connecting rod 401, a third gear 402, a first telescopic arm 403, a second telescopic arm 404, a third rack 405, a cylinder 406, a telescopic connecting rod 407, and a drive plate 408. The transmission connecting rod 401 is fixedly installed on the inner side of the mounting box 1. The third gear 402 is rotatably installed on the outer wall of the transmission connecting rod 401. An installation opening is provided on the outer side of the mounting box 1. The first telescopic arm 403 is slidably installed in one set of installation openings, and the second telescopic arm 404 is slidably installed in another set of installation openings. A connecting box 201 is also included. A first set of connecting boxes 201 is fixedly installed at the bottom of the first telescopic arm 403, and another set of connecting boxes 201 is fixedly installed at the bottom of the second telescopic arm 404. Two sets of first springs 203 and two sets of fixing rods 202 are fixedly installed at the bottom of the first telescopic arm 403, and another two sets of first springs 203 and another two sets of fixing rods 202 are fixedly installed at the bottom of the second telescopic arm 404. A third rack 405 is fixedly installed on the outer side of the first telescopic arm 403 and the second telescopic arm 404. The third rack 405 is located inside the mounting box 1 and meshes with the third gear 402. The bottom of the mounting box 1 is fixedly... A cylinder 406 is fixedly installed. A connection opening is provided at the bottom of the mounting box 1. A drive plate 408 is fixedly installed at the bottom of the second telescopic arm 404. The drive plate 408 is located inside the connection opening. A telescopic connecting rod 407 is fixedly installed at the telescopic end of the cylinder 406. The drive plate 408 is fixedly installed at one end of the telescopic connecting rod 407. The start of the cylinder 406 is controlled to extend and retract the telescopic connecting rod 407, which moves the drive plate 408, causing the second telescopic arm 404 to move. This causes the third rack 405 to mesh with the third gear 402, which in turn moves the first telescopic arm 403. The first telescopic arm 403 and the second telescopic arm 404 are extended and retracted, so that the mounting plate 210 is placed inside the steel coil 7 and the outer side of the connecting box 201 is in contact with the outer side of the steel coil 7. At this time, the lifting equipment 9 is started, so that the mounting box 1 rises and the moving pull rope 509 is loosened, so that the positioning rod 512 is reset in the through hole. This fixes the position of the first telescopic arm 403 and the second telescopic arm 404, prevents the first telescopic arm 403 and the second telescopic arm 404 from moving during the hoisting process, prevents the steel coil from falling, reduces safety hazards, and improves the effectiveness of the device.

[0043] The positioning mechanism 5 includes a housing 501, a sliding guide plate 502, a second spring 503, a fixed mounting plate 504, a fixed connecting rod 505, a rotating cylinder 506, a fourth gear 507, a fourth rack 508, a pull rope 509, a pull plate 510, a third spring 511, a positioning rod 512, a bottom support plate 513, and a mounting wheel 514. The housing 501 is provided on the outer side of the first telescopic arm 403 and the second telescopic arm 404. A vertical groove is formed at the top of the first telescopic arm 403 and the second telescopic arm 404, and a sliding guide plate 502 is slidably installed within the vertical groove. A second spring is fixedly installed on the top of the sliding guide plate 502. Spring 503, the second spring 503 is fixedly installed on the inner side of the vertical groove, the sleeve 501 is fixedly installed on the outer side of the sliding guide plate 502, two sets of second springs 503 are fixedly installed on the outer side of the first telescopic arm 403, a fixed connecting rod 505 is fixedly installed between the two sets of second springs 503, a rotating cylinder 506 and two sets of fourth gears 507 are rotatably installed on the outer wall of the fixed connecting rod 505, the fourth gears 507 are fixedly installed on the outer side of the rotating cylinder 506, a fourth rack 508 is fixedly installed on the inner side of one set of sleeve 501, the fourth rack 508 and the fourth gear 507 mesh with each other, and the outer side of the rotating cylinder 506 is fixedly installed with... The first telescopic arm 403 is equipped with a pull rope 509. A groove is formed on the inner side of the first telescopic arm 403, and the pull rope 509 is placed within the groove. A mounting groove is formed on the top of the first telescopic arm 403, and a pull plate 510 is installed within the mounting groove. The pull rope 509 is fixedly installed at the bottom of the pull plate 510. Two sets of third springs 511 are fixedly installed at the bottom of the pull plate 510, and the third springs 511 are fixedly installed inside the mounting groove. Multiple sets of through holes are formed on the top of the mounting box 1, and positioning rods 512 are installed within two sets of through holes. The positioning rods 512 are fixedly installed on the top of the pull plate 510. A bottom support plate 513 is fixedly installed at the bottom of the casing 501. The bottom is fixedly equipped with mounting wheels 514, which can be lowered by controlling the start of the lifting equipment 9, so that the bottom of the mounting wheels 514 is in contact with the ground, and the four sets of protective plates 311 are set on the outside of the steel coil 7. Controlling the start of the lifting equipment 9 causes the mounting box 1 to descend, compressing the second spring 503. The sliding guide plate 502 slides in the vertical groove, causing the fourth gear 507 to descend and mesh with the fourth rack 508, driving the rotating drum 506 to rotate and wind up the pull rope 509. The pull rope 509 pulls the pull plate 510 downward, compressing the third spring 511, and setting the positioning rod 512 in the mounting groove.

[0044] Working principle: By controlling the start of the lifting equipment 9, the entire device is lowered, causing the bottom of the mounting wheel 514 to contact the ground, and the four sets of protective plates 311 to be placed on the outside of the steel coil 7. Controlling the start of the lifting equipment 9 lowers the mounting box 1, compressing the second spring 503. The sliding guide plate 502 slides in the vertical groove, causing the fourth gear 507 to descend and mesh with the fourth rack 508, driving the rotating drum 506 to rotate and wind up the pull rope 509. The pull rope 509 pulls the pull plate 510 downwards, compressing the third spring 511, and placing the positioning rod 512 in the mounting groove. Controlling the start of the cylinder 406 causes the telescopic connecting rod 407 to extend and retract, moving the drive plate 408, and causing the second telescopic arm 404 to move. The third rack 405 meshes with the third gear 402, driving the first telescopic arm 403 to move. This causes the first telescopic arm 403 and the second telescopic arm 404 to extend and retract, positioning the mounting plate 210 inside the steel coil 7. When the outer side of the connecting box 201 is in contact with the outer side of the steel coil 7, the lifting equipment 9 is activated, causing the mounting box 1 to rise and the movable pull rope 509 to loosen. This allows the positioning rod 512 to be reset in the through hole, fixing the positions of the first telescopic arm 403 and the second telescopic arm 404. This prevents the first telescopic arm 403 and the second telescopic arm 404 from moving during hoisting, preventing the steel coil from falling, reducing safety hazards, and improving the effectiveness of the device. By positioning the steel coil 7 on the outer side of the mounting plate 210, the lifting equipment 9 is activated. When the device is activated (equipped with device 9), pulling the entire assembly upwards causes the slider 215 and the moving box 204 to descend under the guidance of the fixed rod 202, influenced by the weight of the steel coil 7. This causes the first spring 203 to extend and retract, engaging the first gear 207 with the first rack 206, thus rotating the first rotating rod 208. This, in turn, causes the rotating disk 214 to rotate, and the guide groove of the rotating disk 214 to rotate, pushing the push rod 213 within the guide groove to move. The push rod 213 then pushes the support rod 211 to slide within the groove of the connecting plate 209, causing the mounting plate 210 to extend outwards. This allows the outer side of the mounting pad 8 to fit against the inner side of the steel coil 7, providing support for the inner side of the steel coil 7. This facilitates adaptation to steel coils of different inner diameters, reduces swaying of the steel coil during hoisting, and improves work efficiency. Highly practical, the downward movement of the movable box 204 causes the second gear 302 and the second rack 312 to mesh and drive the second rotating rod 301 to rotate. The rotation direction of the second rotating rod 301 is opposite to that of the first rotating rod 208, which drives the transmission disc 304 to rotate. This causes the moving groove of the transmission disc 304 to rotate and push the connecting rod 307 in the moving groove to move. The connecting rod 307 pushes the telescopic rod 305 to slide in the slot, causing the moving plate 308 to retract inward. This, in turn, causes the mounting cylinder 309 and the protective plate 311 to retract inward, so that the outer side of the protective plate 311 fits against the outer side of the steel coil 7, providing a more stable fixation for the steel coil 7. During hoisting, the steel coil 7 rotates and shakes, reducing wear on the device and extending its service life.

[0045] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A precision cold-rolled steel strip lifting device, characterized in that, include: Mounting box (1), the top of which is fixedly mounted with a hanging plate (6); A support mechanism (2) is located on the outside of the mounting box (1). The support mechanism (2) includes a connecting box (201), a fixing rod (202), a first spring (203), a moving box (204), a fixing plate (205), a first rack (206), a first gear (207), and a slider (215). Two sets of connecting boxes (201) are provided below the mounting box (1). Two sets of fixing rods (202) are fixedly installed on the inner side of the connecting box (201). The first spring (203) and the slider (215) are sleeved on the outer side of the fixing rod (202). The first spring (203) is fixedly installed on the top of the slider (215). The two sets of sliders (215) are... A movable box (204) is fixedly installed between the two boxes. A fixed plate (205) is fixedly installed on the inner side of the movable box (204). Four sets of openings are opened on the outer side of the movable box (204). A first rack (206) is fixedly installed on the inner side of the connecting box (201). An opening is opened on one side of the movable box (204). A first rotating rod (208) is rotatably installed in the opening. The first rotating rod (208) is rotatably installed on one side of the fixed plate (205). A first gear (207) is fixedly installed on the outer wall of the first rotating rod (208). The first gear (207) is set in two sets of openings. The first gear (207) meshes with the first rack (206). The hoisting mechanism includes a fixing mechanism (3), a telescopic mechanism (4) and a positioning mechanism (5). The fixing mechanism (3) is located outside the mounting box (1) and below the support mechanism (2). The telescopic mechanism (4) is located outside the mounting box (1) and above the fixing mechanism (3). The positioning mechanism (5) is located outside the mounting box (1) and below the telescopic mechanism (4). The support mechanism (2) further includes a first rotating rod (208), a connecting plate (209), a mounting plate (210), a support rod (211), a support plate (212), a push rod (213), and a rotating disk (214). Two sets of connecting plates (209) are rotatably installed on the outer wall of the first rotating rod (208). One set of connecting plates (209) is fixedly installed on one side of the movable box (204). Multiple sets of mounting plates (210) are fixedly installed between the two sets of connecting plates (209). Five sets of sliding grooves are opened on the outer side of the connecting plate (209). The support rod (211) is slidably installed in the sliding groove. The support plate (212) is fixedly installed on the outer side of the support rod (211). Two sets of rotating disks (214) are fixedly installed on the outer wall of the first rotating rod (208). Five sets of guide grooves are opened on the outer side of the rotating disk (214). The push rod (213) is provided in the guide groove. The push rod (213) is fixedly installed on the outer side of the support rod (211). The fixing mechanism (3) includes a protective plate (311), the outer side of which is attached to the outer side of the steel coil (7) to fix the steel coil (7) more stably. The telescopic mechanism (4) includes a first telescopic arm (403) and a second telescopic arm (404). An installation opening is provided on the outside of the mounting box (1). The first telescopic arm (403) is slidably installed in the installation opening. The second telescopic arm (404) is slidably installed in another set of the installation openings. A set of connecting boxes (201) is fixedly installed at the bottom of the first telescopic arm (403), and another set of connecting boxes (201) is fixedly installed at the bottom of the second telescopic arm (404). The positioning mechanism (5) includes a positioning rod (512). The top of the first telescopic arm (403) is provided with an installation groove, and a pull plate (510) is provided in the installation groove. The top of the mounting box (1) is provided with multiple sets of through holes, and the positioning rod (512) is provided in two sets of through holes. The positioning rod (512) is fixedly installed on the top of the pull plate (510).

2. The precision cold-rolled steel strip lifting equipment according to claim 1, characterized in that: The fixing mechanism (3) further includes a second rotating rod (301), a second gear (302), a guide plate (303), a transmission disc (304), a telescopic rod (305), a mounting cover (306), a connecting rod (307), a moving plate (308), a mounting cylinder (309), a connecting telescopic rod (310), and a second rack (312). An installation opening is provided on the other side of the moving box (204), and the second rotating rod (301) is rotatably installed in the installation opening. The second rotating rod (301) is rotatably installed on the other side of the fixing plate (205). A second gear (302) is fixedly installed on the outer wall of the second rotating rod (301). The second gear (302) is located in two other sets of openings. A second rack (312) is fixedly installed on the inner side of the connecting box (201). The second gear (302) meshes with the second rack (312). A guide plate (303) is rotatably installed on the outer wall of the second rotating rod (301). The guide plate (303) is fixedly installed on the... On the other side of the movable box (204), a mounting cover (306) is fixedly installed on the outer side of the guide plate (303). The second rotating rod (301) is rotatably installed on the inner side of the mounting cover (306). Four sets of slots are opened on the outer side of the guide plate (303), and telescopic rods (305) are slidably installed in the slots. A transmission disc (304) is fixedly installed on the outer wall of the second rotating rod (301). Four sets of moving slots are opened on the outer side of the transmission disc (304), and connecting rods (305) are provided in the moving slots. 7) The connecting rod (307) is fixedly installed on the outside of the telescopic rod (305). A movable plate (308) is fixedly installed on the outside of the telescopic rod (305). An installation cylinder (309) is fixedly installed on the outside of the movable plate (308). A connecting telescopic rod (310) is fixedly installed on the inside of a set of installation cylinders (309). The connecting telescopic rod (310) is slidably installed on the inside of another set of installation cylinders (309). A protective plate (311) is fixedly installed on the outside of the installation cylinder (309).

3. The precision cold-rolled steel strip lifting equipment according to claim 1, characterized in that: The telescopic mechanism (4) further includes a transmission connecting rod (401), a third gear (402), a second telescopic arm (404), a third rack (405), a cylinder (406), a telescopic connecting rod (407), and a drive plate (408). The transmission connecting rod (401) is fixedly installed on the inner side of the mounting box (1), and the third gear (402) is rotatably installed on the outer wall of the transmission connecting rod (401). Two sets of first springs (203) and two sets of fixing rods (202) are fixedly installed at the bottom of the first telescopic arm (403), and the other two sets of first springs (203) and the other two sets of fixing rods (202) are fixedly installed on the second telescopic arm (404). At the bottom, a third rack (405) is fixedly installed on the outer side of the first telescopic arm (403) and the second telescopic arm (404). The third rack (405) is located inside the mounting box (1) and meshes with the third gear (402). A cylinder (406) is fixedly installed at the bottom of the mounting box (1). A connection opening is provided at the bottom of the mounting box (1). A drive plate (408) is fixedly installed at the bottom of the second telescopic arm (404). The drive plate (408) is located inside the connection opening. A telescopic connecting rod (407) is fixedly installed at the telescopic end of the cylinder (406). A drive plate (408) is fixedly installed at one end of the telescopic connecting rod (407).

4. The precision cold-rolled steel strip lifting equipment according to claim 1, characterized in that: The positioning mechanism (5) further includes a sleeve (501), a sliding guide plate (502), a second spring (503), a fixed mounting plate (504), a fixed connecting rod (505), a rotating cylinder (506), a fourth gear (507), a fourth rack (508), a pull rope (509), a pull plate (510), a third spring (511), a bottom support plate (513), and a mounting wheel (514). The outer sides of the first telescopic arm (403) and the second telescopic arm (404) are provided with… A sleeve box (501) is provided. Vertical grooves are formed at the top of the first telescopic arm (403) and the second telescopic arm (404). A sliding guide plate (502) is slidably installed in the vertical groove. A second spring (503) is fixedly installed on the top of the sliding guide plate (502). The second spring (503) is fixedly installed inside the vertical groove. The sleeve box (501) is fixedly installed outside the sliding guide plate (502). Two sets of second springs (503) are fixedly installed on the outside of the first telescopic arm (403). 3) A fixed connecting rod (505) is fixedly installed between the two sets of second springs (503). A rotating cylinder (506) and two sets of fourth gears (507) are rotatably installed on the outer wall of the fixed connecting rod (505). The fourth gears (507) are fixedly installed on the outside of the rotating cylinder (506). A fourth rack (508) is fixedly installed on the inner side of a set of sleeves (501). The fourth rack (508) and the fourth gear (507) mesh with each other. The outer side of the rotating cylinder (506) is fixedly installed with... There is a pull rope (509), and a wire groove is opened on the inner side of the first telescopic arm (403). The pull rope (509) is set in the wire groove and fixedly installed on the bottom of the pull plate (510). Two sets of third springs (511) are fixedly installed on the bottom of the pull plate (510). The third springs (511) are fixedly installed on the inner side of the mounting groove. A bottom support plate (513) is fixedly installed on the bottom of the sleeve (501), and a mounting wheel (514) is fixedly installed on the bottom of the bottom support plate (513).

5. The precision cold-rolled steel strip lifting equipment according to claim 1, characterized in that: An mounting pad (8) is fixedly installed on the outside of the support plate (212), and the mounting pad (8) and the protective plate (311) are made of rubber.

6. The precision cold-rolled steel strip lifting equipment according to claim 1, characterized in that: A steel coil (7) is fitted on the outer side of the support plate (212), the inner side of the steel coil (7) is in contact with the outer side of the mounting pad (8), and the outer side of the steel coil (7) is in contact with the inner side of the protective plate (311).

7. The precision cold-rolled steel strip lifting equipment according to claim 1, characterized in that: The hanging plate (6) has three sets of connection ports on its outer side. The hoisting equipment (9) is provided on the outer side of the mounting box (1). The hanging plate (6) is hung on the connecting hook of the hoisting equipment (9) through the connection ports.

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