Search

CN-122009960-A - Hoisting mechanism for steel transportation and use method

CN122009960ACN 122009960 ACN122009960 ACN 122009960ACN-122009960-A

Abstract

The invention relates to the technical field of steel transportation and hoisting, and discloses a hoisting mechanism for steel transportation and a use method thereof, which solve the problems that a traditional steel hoisting tool depends on manual operation, cannot be automatically reset, has low safety and is unknown in state. The mechanism comprises a self-locking hoisting clamp, wherein the self-locking hoisting clamp forms a gravity self-locking and spring reset linkage mechanism through a hanging bracket main body, a main connecting rod, a connecting block, a movable block and a spring, the clamping arm is adjustable in opening through an adjusting piece, an inclination angle sensor, a load sensor, a proximity sensor, a clamping force sensor and a displacement sensor are integrated, state sensing is realized, steel gravity is relied for automatic clamping during use, spring driving reset is performed after unloading, the self-locking hoisting clamp is suitable for efficient, safe and intelligent hoisting of round steel, square steel and other long-length steel, the hoisting mechanism does not need an external power source, the structure is simple and reliable, long-term stable operation in severe industrial environments such as high temperature, dust and the like can be realized, and the two clamps are symmetrically arranged below hoisting equipment, so that balanced stress and stable posture of the long-length steel in the hoisting process can be ensured.

Inventors

  • Tong Nanlin

Assignees

  • 佟南霖

Dates

Publication Date
20260512
Application Date
20260401

Claims (9)

  1. 1. The hoisting mechanism for steel transportation comprises a self-locking hoisting clamp (2) and is characterized in that the self-locking hoisting clamp (2) comprises a hanger main body (21), two hinge seats (22), two main connecting rods (23), a connecting block (24), two hinge shafts (25), two clamp arm connecting sections (28), a movable block (26), a spring (27), two adjusting pieces (29) and two clamp arms (20); The two sides of the bottom of the hanging bracket main body (21) are fixedly provided with hinging seats (22) respectively, one ends of two main connecting rods (23) are rotatably installed in the corresponding hinging seats (22) respectively, a connecting block (24) is connected between the tail ends of the two main connecting rods (23), the two sides of the inside of the connecting block (24) are fixedly provided with hinging shafts (25) respectively, one ends of two clamping arm connecting sections (28) are rotatably installed in the corresponding hinging shafts (25) respectively, movable mounting of the connecting block (24) is provided with a movable block (26), one end of a spring (27) is fixedly connected to the bottom of the hanging bracket main body (21), the other end of the spring is fixedly connected to the movable block (26), the other ends of the two clamping arm connecting sections (28) are respectively connected with adjusting pieces (29), and the two clamping arms (20) are respectively connected to the corresponding adjusting pieces (29); Lifting lugs (3) are fixedly arranged in the middle of the top of the hanging bracket main body (21).
  2. 2. A hoisting mechanism for steel transportation according to claim 1, wherein the ends of the two main connecting rods (23) far away from the hinge base (22) are both rotatably mounted on the surface of the hinge shaft (25) together with the ends of the arm-clamping connecting sections (28).
  3. 3. The hoisting mechanism for steel transportation according to claim 1, wherein a movable groove is formed in the connecting block (24), a movable block (26) is slidably mounted in the movable groove, and one side, away from the hanger main body (21), of the spring (27) is fixedly connected with the surface of the movable block (26).
  4. 4. The hoisting mechanism for steel transportation according to claim 1, wherein the top of the movable block (26) is provided with a thread groove (261), a screw rod (262) extending into the thread groove (261) is fixedly arranged at the bottom of the spring (27), a gasket (263) is sleeved on the surface of the screw rod (262), and the gasket (263) is attached to the inner wall of the thread groove (261).
  5. 5. A hoisting mechanism for steel transportation according to claim 1, wherein the two adjusting members (29) comprise U-shaped plates (291) and adjusting bolts (292), the U-shaped plates (291) are fixedly arranged at the tail ends of the two clamping arm connecting sections (28), the clamping arms (20) are clamped in the U-shaped plates (291), and the adjusting bolts (292) penetrate through the U-shaped plates (291) and extend to the inner parts of the clamping arms (20).
  6. 6. A hoisting mechanism for steel transportation according to claim 1, wherein the inner walls of the two clamping arms (20) are adhered with buffer pads, and the two clamping arms (20) are arc-shaped.
  7. 7. The hoisting mechanism for steel transportation according to claim 1, wherein an inclination sensor (4) is fixedly arranged on the surface of the hanger main body (21), a load sensor (5) is arranged on the lifting lug (3), a proximity switch (7) and a clamping force sensor (6) are embedded and arranged on the inner walls of the two clamping arms (20), and a displacement sensor (8) is fixedly arranged on the surface of the movable block (26).
  8. 8. The hoisting mechanism for steel transportation according to claim 1, further comprising hoisting equipment (1), wherein the hoisting equipment (1) is connected with two self-locking hoisting clamps (2), and the two self-locking hoisting clamps (2) are respectively connected with the hoisting equipment (1) through respective lifting lugs (3).
  9. 9. A method of use of a hoisting mechanism for steel transportation, based on any one of claims 1-8, characterized by comprising the steps of; S1, respectively connecting lifting lugs (3) of two self-locking lifting clamps (2) to lifting equipment (1); S2, in an idle state, a spring (27) is in a stretching state, a movable block (26) is positioned at the upper part of a movable groove in a connecting block (24), two clamping arms (20) are in an open state, a displacement sensor (8) outputs a first position signal, and a proximity switch (7) outputs an object-free signal; s3, placing the steel to be lifted between two clamping arms (20), detecting the steel by a proximity switch (7) and outputting an object signal; S4, starting lifting equipment (1) to ascend, enabling steel gravity to act on the two clamp arms (20) to push the two clamp arm connecting sections (28) to rotate around the hinge shaft (25); s5, two main connecting rods (23) rotate around a hinging seat (22) to drive a movable block (26) to move downwards along a movable groove of a connecting block (24), a spring (27) is further stretched, a displacement sensor (8) outputs a second position signal, and a clamping force sensor (6) outputs a clamping signal; S6, the two clamping arms (20) are closed inwards to clamp steel, the load sensor (5) outputs a load signal, and the inclination sensor (4) outputs an inclination angle signal of the hanger main body (21); S7, lifting steel materials to a target position by the lifting equipment (1), descending, enabling the steel materials to contact a supporting surface, unloading gravity from the clamping arm (20), outputting a load reduction signal by the load sensor (5), and outputting a loosening signal by the clamping force sensor (6); And S8, the spring (27) rebounds, the movable block (26) is pulled to move upwards along the movable groove, the two main connecting rods (23) reversely rotate around the hinge seat (22), the two clamping arms (20) recover to be in an open state, the displacement sensor (8) recovers to output a first position signal, and the proximity switch (7) recovers to output an object-free signal.

Description

Hoisting mechanism for steel transportation and use method Technical Field The invention relates to the technical field of steel transportation and hoisting, in particular to a hoisting mechanism for steel transportation and a using method thereof. Background In the steel smelting, rolling, storage and logistics processes, the lifting of round steel, square steel and bar steel with equal length is a common process, a traditional lifting mode generally adopts a steel wire rope, a chain or a C-shaped hook to be matched with manual hooking and unhooking operation, and the method has obvious defects that an operator needs to manually wear and hang close to high-temperature and heavy steel, safety risks such as scalding and crushing exist, the steel wire rope is easy to slide in the lifting process, the steel is inclined even falls, and the labor intensity is high and the efficiency is low because the steel is required to be manually pried or unhooked again during unloading. In order to improve safety, some enterprises adopt hydraulic or pneumatic clamps to drive clamp arms to be closed through an external power source, however, the device has a complex structure, relies on energy supply, obviously reduces reliability in high-temperature, dusty or explosion-proof environments, can cause clamping failure once power is off or a pipeline is leaked, has serious potential safety hazards, and is not suitable for a large-scale and fast-paced common steel transportation scene due to high maintenance cost of a hydraulic system. While some mechanical self-locking slings attempt to clamp by gravity, the structure of the slings is often lack of an effective reset mechanism and motion guide, the arms cannot be opened automatically due to friction or deformation after unloading, manual intervention is still needed, meanwhile, the clamping force is not adjustable, steel materials with different specifications are difficult to adapt, the hinging parts are easy to loosen after long-term use, and the clamping stability is poor. Therefore, a steel hoisting mechanism which has a simple structure, does not need external power, has reliable self-locking and automatic resetting functions and can adapt to various working conditions is needed. Disclosure of Invention (One) solving the technical problems Aiming at the defects of the prior art, the invention provides a hoisting mechanism for steel transportation and a use method thereof, which have the advantages of simple structure, no need of external power, reliable gravity self-locking, stable spring reset, adjustable clamp arm opening, support of multi-sensor state monitoring and the like, solve the problems that the traditional hoisting tool depends on manual operation, cannot be automatically reset, has low safety and unknown state, and have the advantages of simple structure, no maintenance, high reliability, intellectualization and the like. (II) technical scheme The invention provides a hoisting mechanism for steel transportation, which comprises a self-locking hoisting clamp, wherein the self-locking hoisting clamp comprises a hoisting frame main body, two hinging seats, two main connecting rods, a connecting block, two hinging shafts, two clamping arm connecting sections, a movable block, a spring, two adjusting pieces and two clamping arms; the two sides of the bottom of the hanger main body are fixedly provided with hinging seats respectively, one ends of the two main connecting rods are rotatably installed in the corresponding hinging seats respectively, the connecting blocks are connected between the tail ends of the two main connecting rods, the two sides of the inside of each connecting block are fixedly provided with hinging shafts respectively, one ends of the two clamping arm connecting sections are rotatably installed on the corresponding hinging shafts respectively, the movable mounting of each connecting block is provided with a movable block, one end of each spring is fixedly connected to the bottom of the hanger main body, the other end of each spring is fixedly connected to the movable block, the other ends of the two clamping arm connecting sections are respectively connected with adjusting pieces, and the two clamping arms are respectively connected to the corresponding adjusting pieces; And a lifting lug is fixedly arranged in the middle of the top of the hanger main body. Preferably, one ends of the two main connecting rods far away from the hinging seat are both rotatably installed on the surface of the hinging shaft together with one end of the clamping arm connecting section. Preferably, the movable groove is formed in the connecting block, the movable block is slidably mounted in the movable groove, and one side, away from the hanging bracket main body, of the spring is fixedly connected with the surface of the movable block. Preferably, the top of the movable block is provided with a thread groove, the bottom of the spring is fixedly provided with a scr