Light wire coil lifting appliance

Abstract

The utility model discloses a light wire coil lifting appliance, which relates to the technical field of wire coil lifting appliance equipment, and comprises a cantilever triangular seat, an upper cantilever, a lower cantilever and a die forging lifting ring, the left end of the upper cantilever is fixedly connected with the upper half part of the cantilever triangular seat, and a connecting pipe is fixedly arranged on the inner side of the lower half part of the cantilever triangular seat; the left end of the lower cantilever and the connecting pipe are fixedly installed, and a first chain and a second chain are arranged on the outer side of the die forging hanging ring. By adopting the structure, the lifting appliance in the technical scheme is made of plates and profiles with higher yield strength, the dead weights of the upper cantilever, the lower cantilever and the cantilever triangular seat are reduced by more than 50%, and the diagonal draw bar is additionally arranged between the lower part of the outer lifting point of the upper cantilever and the cantilever triangular seat; therefore, the opening between the upper arm and the lower arm is not elastically changed when the load is hoisted, and the conditions that the upper cantilever upwarps and the lower cantilever droops are avoided, so that the hoisting safety is effectively ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of wire coil sling equipment, in particular to a light wire coil sling. Background Art

[0002] The coiled materials at the port terminal are hoisted by the terminal crane through lifting tools or slings. Since the load of the duckbill crane at the old terminal is usually 10T, in order to achieve more loading and fast transportation, the double-row spreader generally chooses one hoist and four rolls, and the line pressure of each roll is 2.1-2.2T, and the total weight of 4 rolls is about 8.4T. The dead weight of the spreader must be limited to 1.6T, and the dead weight of the 8.4T C-type hook is not less than 3T at present at home and abroad, so the lifting operation cannot be carried out. If the light double-row spreader is not used, the lifting operation can only be carried out by manually threading and hanging the wire rope. At least five people are required for manual operation: one person drills into the 3.8M long wire roll to thread the sling; one person is responsible for hanging the rigging ring into the crane hook; one person unhooks the rigging during unloading; one person is responsible for pulling out the rigging in the wire roll; one person directs the lifting and unloading. The use of this sling allows unmanned ground operation, which not only saves labor costs, but also saves the loss of wire rope slings, and solves the major safety hazards of manual operation, especially in summer when the cabin temperature is higher than 50-60°, and operators often suffer from heatstroke. Utility Model Content

[0003] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a light wire coil sling to solve the problems mentioned in the background technology.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] The light wire coil sling comprises a cantilever triangular seat, an upper cantilever, a lower cantilever and a die-forged lifting ring, the left end of the upper cantilever is fixedly connected to the upper half of the cantilever triangular seat, the inner side of the lower half of the cantilever triangular seat is fixedly installed with a connecting pipe, the left end of the lower cantilever is welded to the inner wall of the connecting pipe, the outer sides of the die-forged lifting ring are respectively provided with a first chain and a second chain, the upper end of the upper cantilever is symmetrically fixedly installed with a lifting ear, the ends of the first chain are fixedly installed with the lifting ears, one end of the second chain is fixedly installed with a spring, the upper end of the cantilever triangular seat is fixedly connected with a shackle, the other end of the spring away from the second chain is fixedly installed with the shackle, a chain-spring combination adjuster is provided on the outer side of one end of the second chain close to the die-forged lifting ring, the right end of the upper cantilever is fixedly installed with a balancing box, the lower end of the lifting ear of the right half of the upper cantilever is fixedly installed with a connecting block, and a diagonal rod is provided between the other end of the connecting block and the cantilever triangular seat.

[0006] As an optimal technical solution, a through hole is opened on the inner side of the upper cantilever, and the lower end of the lifting ear on the right half of the upper cantilever can be movably passed through the through hole and fixedly installed on the connecting block. Through the through hole, the lower end of the lifting ear on the right half of the upper cantilever can be conveniently passed through the upper cantilever and the connecting block for installation.

[0007] As an optimal technical solution, the cantilever triangular seat is shaped like a triangular ring, and a mounting seat is fixedly installed on the inner side of the ring of the cantilever triangular seat. The end of the diagonal rod away from the connecting block is fixedly installed on the mounting seat. The ring-shaped cantilever triangular seat can ensure the strength of use while reducing the weight of the sling itself. By installing the mounting seat on the inner side of the ring, it can be conveniently installed with the diagonal rod.

[0008] As a preferred technical solution, one end of the inclined rod and one end of the connecting block are welded, and a mounting hole is provided on the inner side of the end of the inclined rod away from the connecting block. The mounting seat is fixedly installed by screws, nuts and the mounting hole. By welding one end of the inclined rod to the connecting block and installing the other end to the mounting seat, the stability and load-bearing effect between the cantilever triangle seat and the upper cantilever can be improved.

[0009] As an optimal technical solution, a first reinforcement block is welded on the right side of the upper half of the cantilever triangle seat, and the lower end of the first reinforcement block is welded to the upper end of the upper cantilever. The cantilever triangle seat and the upper cantilever can be reinforced by the first reinforcement block.

[0010] As an optimal technical solution, a second reinforcement block is symmetrically welded to the lower end of the cantilever triangular seat, and the upper end of the second reinforcement block and the lower end of the lower cantilever are fixedly installed. The lower cantilever and the cantilever triangular seat can be reinforced by the second reinforcement block.

[0011] As a preferred technical solution, the upper cantilever is rectangular in shape, and two lower cantilevers are symmetrically arranged. The lower cantilever is cylindrical in shape, and the two lower cantilevers on the cantilever triangular seat can facilitate double-row lifting of the wire coils.

[0012] In summary, the utility model mainly has the following beneficial effects:

[0013] First, the sling in the technical solution is made of plates and profiles with high yield strength, and the self-weight of the upper cantilever, the lower cantilever and the cantilever triangular seat is reduced by about 50%. When loading the hoisting load, an inclined rod is installed between the lower part of the outer hanging point of the upper cantilever and the cantilever triangular seat, so that the opening between the upper and lower arms will not have a large elastic change, and the upper cantilever will not be tilted up and the lower cantilever will not droop, thereby effectively ensuring the safety of the hoisting;

[0014] Second, due to the deadweight of the cantilever seat, the C-type hook is upward when the hook is unloaded, which requires a counterweight at the front end of the hook for balance. The technical solution adds a spring adjustment device to the second chain, one end of which is fixed on the main lifting ring and the other end is pulled on the rear cantilever triangular seat. In this way, the gravity of the cantilever triangular seat will move forward, which can reduce the counterweight and reduce the total weight by about 10%;

[0015] Third, due to the heavy workload and high frequency of use of the sling, the cantilever under the C-hook is prone to wear. By welding two wear-resistant electrodes on the lifting shaft, it not only has a wear-resistant effect to increase the service life of the sling, but also has an anti-skid effect, eliminating the safety hazard of coiled materials sliding off. In addition, since the material used for the sling is thin, by strengthening protective facilities at the stress-bearing parts, the lifting ear adopts the method of wide inside and narrow outside, which solves the safety factor that cannot be achieved by welding, thus ensuring the lifting safety of the lifting ear. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a side view of the cantilever triangular seat of the utility model;

[0018] Figure 3 This is a schematic diagram of the inclined tie rod structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the second reinforcement block of the utility model;

[0020] Figure 5 It is a schematic diagram of the connection between the lower cantilever and the connecting pipe of the utility model.

[0021] Figure numerals: 1. die-forged lifting ring; 2. first chain; 3. second chain; 4. chain adjuster; 5. spring; 7. lifting ear; 8. shackle; 9. balance box; 10. diagonal rod; 11. cantilever triangle seat; 12. connecting pipe; 13. lower cantilever; 14. first reinforcement block; 15. through hole; 16. connecting block; 17. second reinforcement block; 18. upper cantilever; 19. mounting seat; 20. mounting hole. DETAILED DESCRIPTION

[0022] refer to Figures 1 to 5The light wire coil sling described in this embodiment includes a cantilever triangular seat 11, an upper cantilever 18, a lower cantilever 13 and a die-forged lifting ring 1. The left end of the upper cantilever 18 is fixedly connected to the upper half of the cantilever triangular seat 11, and a connecting pipe 12 is fixedly installed on the inner side of the lower half of the cantilever triangular seat 11. The left end of the lower cantilever 13 is welded to the inner wall of the connecting pipe 12. The outer side of the die-forged lifting ring 1 is respectively provided with a first chain 2 and a second chain 3. The upper end of the upper cantilever 18 is symmetrically fixedly installed with a lifting ear 7. The ends of the first chain 2 are fixedly installed with the lifting ear 7. A spring 5 is fixedly installed at one end of the second chain 3. A shackle 8 is fixedly connected to the upper end of the cantilever triangular seat 11. The other end of the spring 5 away from the second chain 3 is fixedly installed with the shackle 8. A chain adjustment mechanism is provided on the outer side of one end of the second chain 3 close to the die-forged lifting ring 1. Device 4, a balance box 9 is fixedly installed on the right end of the upper cantilever 18, a connecting block 16 is fixedly installed on the lower end of the lifting ear 7 of the right half of the upper cantilever 18, and a diagonal tie rod 10 is provided between the other end of the connecting block 16 and the cantilever triangular seat 11; since each unit has to complete 3,000 tons of lifting every day and the number of liftings is about 350-400 times, the two wear-resistant welding rods on the hanging shaft of the lower cantilever 13 not only play a wear-resistant role to improve the service life of the sling, but also play an anti-skid role, eliminating the safety hazard of coiled materials sliding off; the surface of this sling is treated with rust prevention and paint, which can greatly enhance the service life of the sling; through the adjustable chain spring combination, the rear triangular cantilever seat is pulled when unloaded, and the inclination of the upper wing of the sling is controlled to be ≤3-5°, which effectively reduces the weight of the counterweight, thereby effectively controlling the lightweight of the overall wire coil sling.

[0023] refer to Figure 5 A reinforcing tube is also installed on the inner side of the connecting tube 12, and one end of the reinforcing tube extends into the lower cantilever 13. The outer wall of the reinforcing tube and the inner wall of the lower cantilever 13 are welded, which can greatly enhance the supporting strength of the lower cantilever 13.

[0024] refer to Figure 1 A through hole 15 is opened on the inner side of the upper cantilever 18, and the lower end of the ear 7 on the right half of the upper cantilever 18 can be movably passed through the through hole 15 and fixedly installed on the connecting block 16. By using the through hole 15 on the inner side of the upper cantilever 18, the lower end of the ear 7 on the right half of the upper cantilever 18 can pass through the upper cantilever 18 and be installed on the connecting block 16.

[0025] refer to Figure 2 The cantilever triangular seat 11 is in the shape of a triangular ring, and a mounting seat 19 is fixedly installed on the inner side of the ring of the cantilever triangular seat 11. One end of the diagonal rod 10 away from the connecting block 16 is fixedly installed with the mounting seat 19. The mounting seat 19 is installed in the ring part of the cantilever triangular seat 11, which can be conveniently connected and fixed with one end of the diagonal rod 10.

[0026] refer to Figure 1 and Figure 3One end of the inclined rod 10 and one end of the connecting block 16 are welded and connected. A mounting hole 20 is opened on the inner side of the end of the inclined rod 10 away from the connecting block 16. The mounting seat 19 is fixed and installed by screws, nuts and the mounting hole 20. One end of the inclined rod 10 is installed through the mounting hole 20 and the mounting seat 19 in the cantilever triangular seat 11, and the connecting block 16 is connected and installed by connecting with the lower end of the ear 7 of the right half of the upper cantilever 18. Then, the end of the inclined rod 10 away from the mounting seat 19 is welded to the connecting block 16. This split connection method can effectively avoid the influence of excessive installation gap and error on the connection strength of the inclined rod 10.

[0027] refer to Figure 1 A first reinforcement block 14 is welded to the right side of the upper half of the cantilever triangular seat 11, and the lower end of the first reinforcement block 14 is welded to the upper end of the upper cantilever 18. The first reinforcement block 14 on the right side of the upper half of the cantilever triangular seat 11 can be used to connect and reinforce the upper cantilever 18.

[0028] refer to Figure 4 A second reinforcement block 17 is symmetrically welded to the lower end of the cantilever triangular seat 11, and the upper end of the second reinforcement block 17 and the lower end of the lower cantilever 13 are fixedly installed. By connecting the second reinforcement block 17 at the lower end of the cantilever triangular seat 11 and the lower cantilever 13, the lower cantilever 13 can be reinforced.

[0029] refer to Figure 1 and Figure 2 The upper cantilever 18 is rectangular in shape, and two lower cantilevers 13 are symmetrically arranged. The lower cantilever 13 is cylindrical in shape. By using the two lower cantilevers 13 at the lower end of the cantilever triangular seat 11, it is convenient to carry out double-row simultaneous lifting of the wire coils.

[0030] Principle and advantages of use: During use, this sling is mainly used for lifting double-row light wire coils at port terminals. It is made of high-strength Q1100E plates, and the weight of the upper cantilever 18, the lower cantilever 13 and the cantilever triangular seat 11 is reduced by about 50%. When loading the lifting load, an inclined rod 10 is installed between the lower side of the outer lifting point of the upper cantilever 18 and the cantilever triangular seat 11, so that the opening between the upper and lower arms will not have a large elastic change. By adding a spring 5 adjustment device to the second chain 3, one end is fixed on the main lifting ring, and the other end is pulled on the rear cantilever triangular seat 11, so that part of the gravity of the cantilever triangular seat 11 will move forward, which can reduce the weight of the counterweight;

[0031] Since the sling has a large workload and is used frequently, the cantilever 13 under the C-hook is prone to wear. By welding two wear-resistant electrodes on the lifting shaft, it not only has a wear-resistant effect to increase the service life of the sling, but also has an anti-skid effect, eliminating the safety hazard of coiled materials sliding off. In addition, since the material used for the sling is thin, by strengthening protective facilities at the stress-bearing parts, the lifting ear 7 adopts the method of wide inside and narrow outside, which solves the safety factor that cannot be achieved by welding, thereby ensuring the lifting safety of the lifting ear 7.

Claims

1. A light wire coil sling, comprising a cantilever triangular seat (11), an upper cantilever (18), a lower cantilever (13) and a die-forged lifting ring (1), characterized in that: The left end of the upper cantilever (18) is fixedly connected to the upper half of the cantilever triangular seat (11); a connecting pipe (12) is fixedly installed on the inner side of the lower half of the cantilever triangular seat (11); the left end of the lower cantilever (13) is welded to the inner wall of the connecting pipe (12); the outer side of the die-forged lifting ring (1) is respectively provided with a first chain (2) and a second chain (3); the upper end of the upper cantilever (18) is symmetrically fixedly installed with a lifting ear (7); the ends of the first chain (2) are fixedly installed with the lifting ear (7); one end of the second chain (3) is fixedly installed with a spring (5), the upper end of the cantilever triangular seat (11) is fixedly connected with a shackle (8), the other end of the spring (5) away from the second chain (3) is fixedly installed with the shackle (8), the outer side of one end of the second chain (3) close to the die forging ring (1) is provided with a chain adjuster (4), the right end of the upper cantilever (18) is fixedly installed with a balance box (9), the lower end of the ear (7) of the right half of the upper cantilever (18) is fixedly installed with a connecting block (16), and a diagonal rod (10) is provided between the other end of the connecting block (16) and the cantilever triangular seat (11).

2. The light wire coil sling according to claim 1, characterized in that: A through hole (15) is provided on the inner side of the upper cantilever (18), and the lower end of the lifting ear (7) on the right half of the upper cantilever (18) movably passes through the through hole (15) and the connecting block (16) for fixed installation.

3. The light wire coil sling according to claim 1, characterized in that: The cantilever triangular seat (11) is in the shape of a triangular ring, a mounting seat (19) is fixedly mounted on the inner side of the ring of the cantilever triangular seat (11), and one end of the inclined rod (10) away from the connecting block (16) is fixedly mounted on the mounting seat (19).

4. The light wire coil sling according to claim 3, characterized in that: One end of the inclined rod (10) and one end of the connecting block (16) are welded together, and a mounting hole (20) is provided on the inner side of the end of the inclined rod (10) away from the connecting block (16), and the mounting seat (19) is fixedly mounted by means of screws, nuts and the mounting hole (20).

5. The light wire coil sling according to claim 1, characterized in that: A first reinforcement block (14) is welded to the right side of the upper half of the cantilever triangular seat (11), and the lower end of the first reinforcement block (14) is welded to the upper end of the upper cantilever (18).

6. The light wire coil sling according to claim 1, characterized in that: A second reinforcement block (17) is symmetrically welded to the lower end of the cantilever triangular seat (11), and the upper end of the second reinforcement block (17) is fixedly mounted to the lower end of the lower cantilever (13).

7. The light wire coil sling according to claim 1, characterized in that: The upper cantilever (18) is rectangular in shape, and two lower cantilever arms (13) are symmetrically provided, and the lower cantilever arm (13) is cylindrical in shape.

Images