Special lifting appliance for on-line replacement of sintering machine trolley
By designing a special spreader for sintering machine trolleys, the problem of time-consuming and unsafe traditional lifting methods is solved, and the rapid and safe trolley replacement is achieved, which improves production efficiency and ensures personnel safety.
Patent Information
- Application Number
- CN202420800508.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-17
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-04-17
AI Technical Summary
Frequent transportation of sintering machines and trolleys in high temperature environments leads to easy damage to the wheels, end seals and sealing skateboards. The traditional lifting method is time-consuming and unsafe, affecting production.
A special spreader is designed, including a spreader body installed outside the wheels at both ends of the trolley. A hanging lug is arranged above the hoist ring on the outer circumference of the hoist body. A through-hole connection shackle is provided on the hoist lug, a shackle is connected to a steel wire rope, and a hanging ring connected to a driving hook at the other end.
It realizes rapid and safe replacement of sintering machine trolleys, shortens replacement time, reduces manpower consumption, and ensures the safety of lifting workers.
Smart Images
Figure CN222907302U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a maintenance device for a sintering machine trolley, in particular to a special lifting tool for replacing a sintering machine trolley on line. Background Technique
[0002] The sintering trolley is the main running component of the sintering machine. Its main function is to form a running rotary chain between the head and tail wheels of the sintering machine. It receives the sintering mixture on the upper horizontal section. After preheating, ignition, sintering, cooling, and material turning, it returns to the head wheel on the return journey to form a transmission cycle, achieving the purpose of sintering the material.
[0003] The sintering machine trolley transports sintered ore frequently in a high-temperature environment, with complex and harsh working conditions and a large number of installed units. During operation, it is prone to failures such as damage and shedding of wheels, end seals, and sealing slide plates, which have a serious impact on equipment, production, and quality. Therefore, the trolley needs to be replaced and repaired frequently. Sintering production requires continuity, and a long replacement time of the trolley has a great impact on sintering production and is affected by the on-site environment. For the traditional replacement of the trolley on line, three people use wire suspension ropes to hang on the positions where the wheel rims of the trolley protrude from the track surface respectively. Before lifting the trolley, people need to hold the positions where the wire suspension ropes are hung by hand to prevent the wire suspension ropes from deviating or hanging insecurely. This seriously wastes the time, manpower, and material resources required for trolley hanging, and at the same time poses safety hazards to the on-site personnel fixing the wire suspension ropes. Summary of the Invention
[0004] The purpose of the utility model is to provide a special lifting tool for replacing a sintering machine trolley on line, which can realize the quick and safe replacement of the sintering machine trolley, solve the current situation of a large number of personnel used in the hoisting process, shorten the replacement time of the sintering machine trolley, and ensure the safety of on-site hoisting operation personnel.
[0005] The purpose of the utility model is realized as follows. A special lifting tool for replacing a sintering machine trolley on line includes a lifting tool body installed outside the wheels at both ends of the trolley. Above the lifting rings on the outer periphery of the lifting tool body, there are lifting lugs. Through holes provided on the lifting lugs are connected with shackles. The shackles are in the shape of an open ring and are connected with a wire suspension rope. The other end of the wire suspension rope is provided with a lifting ring connected with a crane hook; the lifting lugs are provided with rib plates connected with the outer periphery of the lifting rings; the outer periphery of the lifting rings is provided with an outer ring flange, and the inner periphery is provided with an inner ring flange; a ring notch is provided below the lifting rings.
[0006] Further, the ring notch is located directly below the lifting lug and the width slightly exceeds the outer side of the track under the wheel.
[0007] Further, the inner hole of the inner ring flange is oblong and slightly larger than the diameter of the outer end of the wheel.
[0008] The utility model is not affected by the space on the sintering machine trolley line, can quickly install the lifting appliance for lifting operation, is simple to operate, safe and reliable, and has a simple structure, low manufacturing cost and good use effect; it can be quickly and conveniently lifted in different environments, without damaging the trolley body, nor causing deformation of the railing plate and loosening of bolts. The special lifting appliance can be used to simply, quickly and safely lift the trolleys placed flat on the ground, placed on the workbench and in production operation, achieving the lifting effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 is a schematic structural diagram of using the special lifting appliance in the utility model;
[0010] Figure 2 is a cross-sectional view of the lifting state of the lifting appliance body 4 and the trolley wheel 6 of the utility model;
[0011] Figure 3 is the main view of the structure of the utility model;
[0012] Figure 4 is Figure 3 the cross-sectional side view of.
[0013] In the figure: 1. trolley, 2. steel wire sling, 3. shackle, 4. lifting appliance body, 41. lifting lug, 42. rib plate, 43. sling ring, 44. inner ring flange, 45. outer ring flange, 46. ring notch; 5. rail, 6. trolley wheel, 7. lifting ring. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0014] The following structural drawings and embodiments further illustrate the utility model. Refer to Figures 1 to 4 , a special lifting appliance for replacing on the sintering machine trolley line, including a lifting appliance body 4 installed outside the two end wheels 6 of the trolley 1. A lifting lug 41 is arranged above the sling ring 43 on the outer periphery of the lifting appliance body 4. A through hole arranged on the lifting lug 41 is connected with a shackle 3. The shackle 3 is in an open circular ring shape and is connected with a steel wire sling 2. The other end of the steel wire sling 2 is provided with a lifting ring 7 connected with the overhead crane hook; the lifting lug 41 is provided with a rib plate 42 connected with the outer periphery of the sling ring 43; an outer ring flange 45 is arranged on the outer periphery of the sling ring 43, and an inner ring flange 44 is arranged on the inner periphery. The inner hole of the inner ring flange 44 is oblong and slightly larger than the diameter of the outer end of the wheel 6. A ring notch 46 is arranged below the sling ring 43. The ring notch 46 is located directly below the lifting lug 41 and the width slightly exceeds the outside of the rail 5 below the wheel 6. Embodiment
[0015] A special lifting tool for replacing a trolley on a sintering machine line, comprising a lifting tool body 4, a connecting shackle 3 and a wire sling 2, characterized in that: two lifting tool bodies 4 are provided, which are respectively placed at the end positions of two wheels 6 at the diagonal corners of the trolley 1. A lifting lug 7 is welded on the lifting tool body 4 for installing the connecting shackle 3. A wire sling 2 is provided on the connecting shackle 3. The two wire slings 2 are hung together on the hook of the crane to perform a stable lifting operation. And the lifting tool body 4 utilizes that the inner hole of the seamless pipe 9 is slightly larger than the flange of the trolley wheel 6. The inner ring flange 10, the outer ring flange 8, the rib plate 11 and the lifting lug 7 are welded on the seamless pipe 9. The inner ring flange 10 can play a role in positioning and reinforcement. The outer ring flange 8 and the rib plate 11 only play a role in reinforcement. The lifting lug 7 is specifically used for installing the connecting shackle 3. A notch is cut at the lower part to avoid the position of the trolley wheel on the rail 5.
[0016] When manufacturing the lifting tool body of the present utility model, first, the size of the flange of the trolley wheel 6 and the size of the trolley wheel 6 protruding outside the rail 5 should be determined. After determining the size, the inner hole size of the appropriate seamless pipe 9 is 2-3 mm larger than the flange size of the trolley wheel 6 to facilitate subsequent rapid installation. And the total wall thickness of the seamless pipe 9 after boring the inner hole should be ensured to be more than 20 mm. The thickness should not be too thick. Then, according to the size of the trolley wheel 6 at the position where it protrudes outside the rail 5, a notch is cut at the lower part of the seamless pipe 9 to prevent interference during placement. After the specific size of the seamless pipe 9 is processed and manufactured, it is necessary to position, reinforce and weld the lifting lug 7 during its use. The inner ring flange 10 fixes the seamless pipe 9 to be able to insert into the deepest position of the trolley wheel 6, which can play a role in rapid positioning and reinforcement during use. The lifting lug 7 is welded directly above the notch cut on the seamless pipe 9 to facilitate the installation of the connecting shackle 3. And the outer flange ring 8 and the rib plate 11 are welded on the seamless pipe 9 for reinforcement according to the actual situation, and the plate thickness is about 16 mm, which is appropriate.
[0017] The usage method of the present utility model is as follows (as Figure 1 shown): Fix the lifting lug 7 on the manufactured lifting tool body 4 with the connecting shackle 3. A wire sling 2 is provided on the connecting shackle 3. In this way, the lifting tool body 4, the connecting shackle 3 and the wire sling 2 form a special lifting tool as a whole, which can be directly used when replacing the trolley on the sintering machine line. Install two identical special lifting tools at the diagonal corners of the trolley wheel 6 respectively. Hang the other ends of the two wire slings 2 on the hook of the crane, and then stable lifting can be carried out. The whole process takes about 5 minutes per trolley, truly realizing the rapid and safe replacement of the sintering machine trolley.
Claims
1. A special lifting device for replacing a sintering machine trolley on line, comprising a lifting device body mounted outside wheels at both ends of the trolley, characterized in that: A lifting ear is arranged above the lifting ring on the outer periphery of the lifting device body, and a shackle is connected to the through hole arranged on the lifting ear. The shackle is in the shape of an open circular ring and is connected to a steel wire rope. The other end of the steel wire rope is provided with a lifting eye connected to the crane hook; the lifting ear is provided with a rib plate connected to the outer periphery of the lifting ear; an outer ring flange is arranged on the outer periphery of the lifting ring, and an inner ring flange is arranged on the inner periphery; a ring notch is arranged below the lifting ring.
2. The special lifting device for replacing the sintering machine trolley on-line according to claim 1 is characterized in that: The ring gap is located just below the lifting lug, and its width exceeds the outer side of the rail below the wheel.
3. The special lifting device for replacing the sintering machine trolley on-line according to claim 1 is characterized in that: The inner hole of the inner ring flange is in an oblong shape and is larger than the diameter of the outer end of the wheel.