CN202785368U - Four-suspension-center light-type cathode transporting crane system - Google Patents

Abstract

The utility model discloses a light-duty cathode handling crane with four suspension points, which comprises a bridge type cart, a first trolley, a second trolley and a spreader device. The bridge type cart adopts a double main girder structure to constitute the main support of the system structure, carrying the first trolley, the second trolley, the spreader device and other components, the first trolley and the second trolley are installed between the two light girders of the bridge type cart system, and the first trolley and the second trolley are in the Walking on the main girder, the spreader device is installed under the bridge type cart, the spreader device realizes the lifting of the electrolyzer, the first trolley and the second trolley realize the balanced lifting of the four lifting points of the spreader device, so as to meet the centralized electrolyzer Requirements for overhaul transshipment. The light-duty cathode handling crane with four lifting points comprehensively uses technologies such as mechanics, electricity, hydraulics, and gas to solve the technical problem of difficulty in centralized overhaul and transfer of electrolyzers. The overhaul process can be completed in about 15 days, which can save a lot of time and cost, and at the same time improve The accuracy, stability, safety and reliability of the electrolytic cell during the overhaul process are ensured.

Description

A light-duty cathode handling crane system with four lifting points

technical field

The utility model relates to a light-duty cathode transport crane system for realizing energy saving in aluminum electrolysis production, in particular to a large-scale transfer system for concentrated overhaul of electrolytic cells dedicated to electrolytic aluminum production, and belongs to the technical field of non-ferrous metal smelting electrolytic aluminum and heavy machinery.

Background technique

At present, the method of on-site overhaul is generally adopted in the overhaul of electrolytic cells in electrolytic aluminum factories in China. In this method, the electrolytic cells are repaired on the spot in the electrolytic workshop. After the electrolytic cell is powered off and cooled, dismantling, repairing the cell, repairing the superstructure, building the furnace, installing the superstructure, roasting and starting are carried out on the spot. , In a corrosive environment, the working environment for on-site overhaul of equipment is extremely poor, resulting in difficult maintenance of equipment, long maintenance time, high labor intensity of workers, etc., and there are potential safety hazards. The overhaul time of the electrolytic cell during station maintenance is generally about 45 days, which has a serious impact on the output of the electrolytic aluminum enterprise's unit energy consumption, which cannot meet the development of the domestic aluminum industry. The centralized overhaul method means that after the electrolytic cell is powered off, the electrolytic cell is moved out of the electrolytic workshop in a hot state, the tank is dismantled, the tank is repaired, the upper structure is repaired, the furnace is built in the overhaul workshop, and the new tank body and upper part are installed in the electrolytic workshop. Structuring, firing and starting. It only takes about 15 days to complete a tank overhaul process, which greatly saves time and cost compared with the on-site overhaul method. Successfully solved the above-mentioned problems of in-situ overhaul. The cathode handling crane system is the key equipment to achieve centralized overhaul of the electrolyzer. At present, the largest cathode handling equipment in China is 80+80t, and is limited by wheel pressure and self-weight. The accuracy, stability, safety and reliability of the electrolytic cell cannot be guaranteed.

With the development of the electrolytic aluminum industry, the current increase of the electrolytic cell and the improvement of technology, the existing cathode handling crane system can no longer meet the requirements. Therefore, it is urgent to develop a cathode handling crane system equipment of 130+130t and above to meet the needs of electrolytic aluminum. Process requirements. the

Utility model content

In order to solve the above-mentioned technical problems, the utility model proposes a four-suspension-point light-duty cathode handling crane system that adopts a bridge crane structure, uses four suspension points to balance and stabilize the gravity of the electrolytic cell, and realizes centralized overhaul and transfer of large-scale electrolytic cells.

The technical solution adopted by the utility model to solve the above-mentioned technical problems is: a light-duty cathode handling crane system with four suspension points, including a bridge type cart, a first trolley, a second trolley, and a spreader device. The car adopts a double main beam structure, which constitutes the main support of the system, and carries the first trolley, the second trolley, the spreader device and other components. The first trolley and the second trolley are installed between the two light main beams of the bridge type cart; The first trolley and the second trolley walk on the main girder, the spreader device is installed under the bridge type cart, the spreader device realizes the lifting of the electrolyzer, and the first trolley and the second trolley realize the four hoisting of the spreader device Point balanced lifting, so as to meet the requirements of centralized overhaul and transfer of small electrolyzers.

As a further improvement of the utility model, the first trolley includes a first trolley trolley frame, a first trolley lifting mechanism, a first trolley balancing mechanism, a first trolley running mechanism, the first trolley lifting mechanism, a first trolley The trolley balancing mechanism and the first trolley running mechanism are installed on the trolley frame of the first trolley, wherein the first trolley includes two sets of first trolley balancing mechanisms.

As a further improvement of the utility model, the balance mechanism includes a set of fixed pulleys and a boom; the fixed pulley set includes three fixed pulleys, which are installed on the trolley frame, and the boom is suspended on the trolley frame through a wire rope Below, one end is fixed with two fixed pulleys, which are connected with the fixed pulley block through the steel wire rope, and the other end is connected with the spreader device to realize two lifting points of the spreader device.

As a further improvement of the utility model, the second trolley includes a second trolley trolley frame, a second trolley lifting mechanism, a second trolley running mechanism, a second trolley balance arm mechanism, the second trolley lifting mechanism, The running mechanism of the second trolley and the balance arm mechanism of the second trolley are installed on the trolley frame of the second trolley.

As a further improvement of the utility model, the second trolley balance arm mechanism includes a set of fixed pulleys, two booms and a balance arm, and the fixed pulley set includes four fixed pulleys fixed on the trolley frame. The balance arm is installed on the trolley frame by means of hinge, and a fixed pulley is installed at each end of the balance arm. The steel wire rope is connected to the fixed pulley and the fixed pulley block at both ends of the balance arm, and the other end is connected to the spreader device to realize two lifting points of the spreader device. The balance arm is hingedly connected to the frame of the second trolley to automatically adjust the balance and solve the four-lift problem. Point acting on the over-positioning action on the spreader device.

As a further improvement of the utility model, the hanger device includes a rigid hanger, a long screw, a nut, a handle and a four-hinged lifting point support, and the rigid hanger is a rectangular steel frame structure, including two long longitudinal beams and two short beams, the long screw, nut and handle are installed on the longitudinal beam, and the four hinged lifting point supports are symmetrically installed in the rigid hanger. The long screw rod realizes the connection between the spreader device and the electrolyzer, and the nut and handle realize the manual positioning.

The utility model comprehensively uses technologies such as machine, electricity, liquid and gas to realize automatic adjustment and balance, adopts four lifting points to stabilize and balance the gravity of the electrolytic cell, and solves the technical problem of difficulty in centralized overhaul and transportation of the electrolytic cell, and it can be completed in about 15 days Completing the overhaul process can save a lot of time and cost, and at the same time improve the accuracy, stability, safety and reliability of the electrolytic cell during the overhaul process.

Description of drawings

Fig. 1 is the front view of the utility model system device;

Fig. 2 is the top view of the utility model system device;

Fig. 3 is the left side view of the utility model system device;

Fig. 4 is the hanger device figure of the utility model;

Fig. 5 is a schematic diagram of the balance arm of the utility model;

In the figure: 1. Bridge cart, 2. The first trolley, 3. The second trolley, 4. Electrolyzer, 5. Spreader device, 6. End beam,

7. Cart running mechanism, 8. Light main beam, 9. First trolley lifting mechanism, 10. First trolley trolley frame, 11. First trolley running mechanism, 12. Second trolley lifting mechanism, 13. Frame of the second trolley, 14. Running mechanism of the second trolley, 15. Balance arm mechanism of the second trolley, 16. Balance mechanism of the first trolley, 17 buffer, 18. Fixed pulley, 19. Boom, 20. Handle , 21. Long screw rod, 22. Nut, 23. Short beam, 24. Rigid hanger, 25. Four-hinged lifting point support, 26. Long longitudinal beam, 27. Balance arm, 28. Support beam, 29. Pin shaft , 30. hanging fork, 31. hinged support.

Detailed ways

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention , for those skilled in the art, other drawings can also be obtained according to these drawings on the premise of not paying creative work.

A four-suspension-point light-duty cathode handling overhead crane system, including a bridge type cart 1, a first trolley 2, a second trolley 3, a spreader device 5, and a cart operating mechanism 7; the bridge type cart 1 adopts a double-main Beam structure, two light main beams 8 are erected on the upper part of the two end beams 6 respectively, constituting the main support of the system, carrying the first trolley 2, the second trolley 3, the spreader device 5, the cart operating mechanism 7 and other components, Buffers 17 are provided at both ends of the two end beams 6 to improve the safety and reliability of the operation of the bridge type cart 1. The first trolley 2 and the second trolley 3 are installed between the two light-duty main beams 8 of the bridge type cart 1 , the first trolley 2 and the second trolley 3 walk on the light girder 8, the spreader device 5 is installed below the bridge cart 1, the spreader device 5 realizes lifting the electrolytic cell 4, the first trolley 2, The second trolley 3 realizes the balanced lifting of the four lifting points of the spreader device 5, which ensures the accuracy, stability, safety and reliability of the electrolytic cell 4, thereby meeting the requirements of centralized overhaul and transfer of the electrolytic cell 4.

As a further improvement of the utility model, the first trolley 2 includes a first trolley frame 10, a first trolley lifting mechanism 9, a first trolley balancing mechanism 16, a first trolley operating mechanism 11, and the first trolley The lifting mechanism 9 , the first trolley balance mechanism 16 , and the first trolley running mechanism 11 are installed on the first trolley trolley frame 10 , wherein the first trolley 2 includes two sets of first trolley balance mechanisms 16 . The first trolley balance mechanism 16 comprises one group of fixed pulleys 18 and a boom 19, said fixed pulley group comprises three fixed pulleys 18, is installed on the first trolley trolley frame 10, and said boom 19 hangs by wire rope Below the trolley trolley frame 10, one end is fixed with two fixed pulleys 18, connects with fixed pulley block by wire rope, and the other end connects with spreader device 5, realizes spreader device 5 two lifting points.

As a further improvement of the utility model, the second trolley 3 includes a second trolley frame 13, a second trolley lifting mechanism 12, a second trolley running mechanism 14, a second trolley balance arm mechanism 15, the second trolley The trolley lifting mechanism 12 , the second trolley running mechanism 14 , and the second trolley balance arm mechanism 15 are installed on the trolley frame 13 of the second trolley. Described second trolley balance arm mechanism 15 comprises one group of fixed pulleys 18, two booms 19 and a balance arm 27, and described fixed pulley group comprises four fixed pulleys 18, is fixed on the second trolley trolley frame 13, so The balance arm 27 is mounted on the second trolley frame 13 in a hinged manner, and a fixed pulley 18 is respectively installed at both ends of the balance arm 27, and the two booms 19 are suspended below the two ends of the balance arm 27 by wire ropes. One end of the boom 19 is fixed with two fixed pulleys 18, which are connected with the fixed pulleys 18 and the fixed pulley blocks at both ends of the balance arm 27 through steel wire ropes, and the other end is connected with the spreader device 5, and the balance arm 27 passes through the supporting beam 28, pin shaft 29 and suspension The fork 30 is installed on the hinged support 31, and the suspension fork 30 realizes the middle hinge of the balance arm 27, and the hinged support 31 is installed on the second trolley trolley frame 13 to realize two lifting points of the spreader device 5. Because the balance arm 27 is hingedly connected on the second trolley 3, it can automatically adjust the balance, solve the over-positioning effect of the four lifting points acting on the spreader device 5, and realize that the four lifting points can bear the effect of gravity balance at any time. Solve the shortcomings of poor stability of the two lifting points, and improve the safety and reliability of system equipment.

As a further improvement of the utility model, the hanger device 5 includes a rigid hanger 24, a long screw rod 21, a nut 22, a handle 20 and a four-hinged lifting point support 25, and the rigid hanger 24 is a rectangular steel frame structure , including two long longitudinal beams 26 and two short beams 23, the long screw rod 21, nut 22 and handle 20 are installed on the long longitudinal beams 26, and the four-hinged suspension point support 25 is symmetrically installed on the rigid hanger Within 24, it is one of the cores to realize the four lifting points. The long screw rod 21 realizes the connection between the spreader device 5 and the electrolyzer 4, and the nut 22 and the handle 20 realize manual positioning. the

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made. These improvements and modifications It should also be regarded as the protection scope of the present utility model.

Claims (6)

1. A four-suspension-point light-duty cathode handling crane system, characterized in that it includes a bridge type cart, a first trolley, a second trolley, and a spreader device, and the bridge type cart adopts a double main girder structure to form a system The main support structure of the main body carries the first trolley, the second trolley, the spreader device and other components. The first trolley and the second trolley are installed between the two light-duty main girders of the bridge type cart system. The second trolley walks on the main girder, and the spreader device is installed under the bridge type cart. 2. A light-duty cathode crane system with four lifting points according to claim 1, wherein the first trolley includes a first trolley frame, a first trolley lifting mechanism, and a first trolley balancing mechanism , the first trolley operating mechanism, the first trolley lifting mechanism, the first trolley balancing mechanism, and the first trolley operating mechanism are installed on the first trolley trolley frame, wherein the first trolley includes two sets of first trolley balancing mechanisms . 3. A light-duty cathode crane system with four lifting points as claimed in claim 2, characterized in that: said balance mechanism includes a set of fixed pulleys and a boom, said fixed pulley set includes three fixed pulleys, installed On the trolley frame, the boom is suspended below the trolley frame through a steel wire rope, and two fixed pulleys are fixed at one end, which are connected with the fixed pulley block through the steel wire rope, and the other end is connected with the spreader device. 4. A four-point light-duty cathode handling crown crane system according to claim 1, wherein the second trolley includes a second trolley frame, a second trolley lifting mechanism, and a second trolley running mechanism . The balance arm mechanism of the second trolley, the lifting mechanism of the second trolley, the running mechanism of the second trolley, and the balance arm mechanism of the second trolley are installed on the trolley frame of the second trolley. 5. A light-duty cathode crane system with four lifting points as claimed in claim 4, characterized in that: said second trolley balance arm mechanism includes a set of fixed pulleys, two booms and a balance arm, said The fixed pulley block consists of four fixed pulleys, which are fixed on the trolley frame. The balance arm is mounted on the trolley frame in a hinged manner. A fixed pulley is installed at each end of the balance arm. The two booms are suspended by wire ropes. Below the two ends of the balance arm, two fixed pulleys are fixed at one end of the boom, which are connected with the fixed pulleys and the fixed pulley blocks at both ends of the balance arm through wire ropes, and the other end is connected with the spreader device. 6. A light-duty cathode crane system with four lifting points as claimed in claim 1, characterized in that: the spreader device includes a rigid hanger, a long screw, a nut, a handle and a support with four hinged lifting points, The rigid hanger is a rectangular steel frame structure, including two long longitudinal beams and two short beams, the long screw, nut and handle are installed on the Inside the hanger. the

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