Automatic trolley device for hoisting anode guide rod assembly for electrolytic aluminum

Abstract

The utility model discloses an automatic trolley device for hoisting an anode guide rod assembly for electrolytic aluminum, and belongs to the technical field of automatic trolley devices for hoisting anode guide rod assemblies for electrolytic aluminum. The device comprises an overhead track and a power supply sliding contact line arranged in the horizontal direction of the overhead track, a lifting trolley is further hung on the overhead track, a walking motor is arranged on one side of the lifting trolley, a winch lifting mechanism is arranged on the other side of the lifting trolley, an electric cabinet is arranged in the middle of the lifting trolley, and the lifting trolley is driven by the walking motor and slides along the overhead track; a bell jar is connected to the lower portion of the winch lifting mechanism through winch lifting double ropes, and an unlocking push rod is arranged above the bell jar. According to the device, the anode guide rod assembly can be automatically transferred to each production station in an anode assembly workshop, the height of the guide rod can be automatically increased and decreased according to needs, ground equipment operation of each station is matched in an interlocking mode, the working efficiency is improved, and meanwhile potential safety hazards and the labor intensity of workers are greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of automatic trolley devices for lifting anode guide rod components for electrolytic aluminum, and particularly relates to an automatic trolley device for lifting anode guide rod components for electrolytic aluminum. Background Art

[0002] In the aluminum electrolytic industry, anode carbon blocks, as consumables, need to be combined with anode guide rods to form anode guide rod assemblies. This process within aluminum smelters is generally referred to as "anode assembly." The anode assembly process is complex, consisting of multiple pieces of ground-based equipment on the production line. The anode guide rod assemblies are suspended above the production line and transported sequentially.

[0003] Currently, the industry generally adopts two methods for lifting anode guide rod assemblies: Method 1: In high-capacity scenarios with dozens or even hundreds of pieces per hour, a bell-shaped structure is often used, with a catenary trolley suspended from a bell. A long overhead catenary hooks dozens or hundreds of trolleys, with anode guide rod assemblies hooked below the trolleys for transportation; Method 2: In low-capacity scenarios with only a few or a dozen pieces per hour, anode guide rod assemblies are often transported using ordinary lifting machinery such as cranes or electric hoists. Method 1, which is suitable for high-capacity scenarios, can achieve automated transportation, but the system structure is large, the drive and position control mechanisms on the entire line are complex, and the investment is often tens of millions of yuan. In addition, the guide rod assemblies are hung on the trolley at a fixed height and cannot be raised or lowered. For guide rod assembly and unloading lines and other operations requiring different heights, ground equipment can only be equipped with lifting mechanisms and adjusted to accommodate the height of the fixedly suspended guide rod assemblies. This greatly increases the complexity of the supporting ground equipment and increases the probability of system failures and abnormalities. Ordinary lifting machinery, which is suitable for low-capacity method 2, has a very low investment, but can only be operated manually on-site, is difficult to automate, and has low efficiency and poor safety.

[0004] Chinese utility model patent publication number CN209442517U discloses a bell-shaped lifting device with a protective cover having a depth groove and a working groove formed on the bottom of the inner wall. Using a crane to suspend a hanging ring, the working groove on the protective cover is aligned with the anode guide rod and inserted into the anode guide rod. The U-shaped frame drives the fixed block to continue to slide downward, separating the fixed block and the sliding clamp block. Under the action of the spring rebound force, the two sliding clamp blocks move away from each other, and the anode guide rod enters between the two sliding clamp blocks. The U-shaped frame is then lifted, and the inclined surfaces between the sliding clamp block and the fixed block slide relative to each other, driving the two sliding clamp blocks to clamp the anode guide rod. As the sliding clamp block and the fixed block slide further relative to each other, the clamping force between the sliding clamp block and the anode guide rod increases, preventing the anode guide rod from disengaging. Since the sliding clamp block is constantly in translation, the contact area between the sliding clamp block and the anode guide rod is always maximized, further improving stability. At the same time, the presence of the protective cover prevents the anode guide rod from welding and injuring personnel during the lifting process due to the explosion of the block. The Chinese utility model patent with publication number CN214298915U discloses a device for lifting finished anodes of electrolytic aluminum. The device is provided with a lifting shield and a limit clamp. The lifting shield can protect the outer side of the anode guide rod. In the event of an accidental explosion, the fragments will be blocked by the lifting shield to prevent the fragments from being scattered outside. At the same time, the anode guide rod can be stably clamped in the lifting shield through the rotation of the limit clamp, and the clamping force can increase with the increase of the weight of the anode guide rod, thereby improving the practicality of the device. The devices of the above two patents are bell-shaped structures for clamping the anode guide rod, which is completely different from the functional scope of the utility model for lifting, transporting, unlocking, etc. of the suspended guide rod assembly. Utility Model Content

[0005] In order to solve the above problems, the utility model aims to provide an automatic trolley device for lifting anode guide rod assemblies for electrolytic aluminum.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: an automatic trolley device for lifting anode guide rod assemblies for electrolytic aluminum, a plurality of long overhead rails are set above the workshop where the anode guide rod assemblies need to be transported, power supply busbars are set horizontally along the overhead rails, a lifting trolley is also suspended on the overhead rails, a traveling motor is set on one side of the lifting trolley, a winch lifting mechanism is set on the other side, and an electric control box is set in the middle. The lifting trolley is driven by the traveling motor and slides along the overhead rails; a bell cover is connected to the bottom of the winch lifting mechanism through a winch lifting double rope, and the winch lifting mechanism adopts a winch lifting double rope to stably hang the bell cover and perform the lifting action.

[0007] The lifting bell automatically locks the anode guide rod assembly. An unlocking push rod is provided on the top of the bell. The unlocking push rod presses down the unlocking head on the top of the lifting bell to loosen and remove the anode guide rod assembly. The electric control box obtains power and control power through the busbar, and communicates wirelessly with the production control system to automatically control the operation of the lifting trolley.

[0008] Preferably, the lifting trolley includes two sets of front and rear wheels, a frame is connected to the wheels, and a travel motor, an electric control box and a winch lifting mechanism are provided on the frame.

[0009] Preferably, the electric control box is provided with electrical components, including but not limited to a frequency converter and a controller. The electric control box obtains power from the busbar and can realize wireless communication with the workshop main control system.

[0010] Preferably, the hoisting and lifting mechanism adopts a reverse-threaded double-rope drum, and the hoisting and lifting double ropes enable the hoisting bell to be raised and lowered under the operation of the hoisting and lifting mechanism.

[0011] Preferably, the unlocking push rod includes a supporting frame fixed to the upper part of the bell cover, and a push rod is arranged between the frame and the unlocking head on the top of the bell cover. The telescopic movement direction of the push rod and the unlocking head of the hoisting bell cover are on a vertical center line. When the push rod is extended, the unlocking head on the top of the bell cover is pressed down.

[0012] Preferably, the unlocking push rod adopts a structural element whose telescopic action is directly provided by the motor, including but not limited to an electro-hydraulic push rod, a screw, a gear rack, a worm gear, and a rotating bolt. The power of the motor is obtained from the busbar through the electric control box.

[0013] Compared with the existing technology, the utility model has the following advantages: this device abandons all the defects of the traditional method, can not only realize the automatic transportation of the anode guide rod assembly with a relatively simple mechanism, but also adjust the suspension height of the anode guide rod assembly as needed, all operation control functions are realized on the lifting trolley device body, without the need for complicated system machinery and structure, low investment, high efficiency, low failure rate, strong safety, and the independent modular lifting trolley device can be increased or decreased in a reasonable number as needed. When individual trolleys fail in the production process, they can be easily moved or unloaded for maintenance without affecting the system production operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1This is a schematic diagram of an automatic trolley device for lifting anode guide rod assemblies for electrolytic aluminum in the present invention;

[0016] In the figure, 1- overhead track; 2- conductor rail; 3- hoisting trolley; 4- traveling motor; 5- winch lifting mechanism; 6- winch lifting double rope; 7- hoisting bell; 8- unlocking push rod; 9- electric control box; 10- anode guide rod assembly. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. However, it should not be understood that the scope of the subject matter described in the present invention is limited to the following embodiments. Without departing from the above-mentioned technical ideas of the present invention, various modifications, substitutions and changes made according to common technical knowledge and customary means in the field are included in the scope of the present invention.

[0018] The structure of this device is as follows Figure 1 As shown, a full-length overhead track 1 is set above the anode assembly workshop, a slide groove is opened on the overhead track 1, and a full-length power supply busbar 2 is set along the overhead track 1 to provide power for the mobile device.

[0019] The hoisting trolley 3 is suspended on the overhead track 1 and includes two sets of wheels connected to a frame on which a travel motor 4, an electric control box 9, and a hoisting and lifting mechanism 5 are sequentially mounted. The wheels are driven by the travel motor 4 to travel along the overhead track 1. The hoisting and lifting mechanism 5 uses a double hoisting and lifting rope 6 to stably suspend the hoisting bell 7 and perform the lifting action. The spring lock of the hoisting bell 7 automatically locks the anode guide rod assembly 10 when the guide rod is inserted into the bell. An unlocking push rod 8 is provided at the top of the hoisting bell 7. When the anode guide rod assembly 10 needs to be removed, the unlocking push rod 8 presses the T-shaped unlocking head at the top of the hoisting bell 7 to release and remove the anode guide rod assembly 10.

[0020] An electric control box 9 containing a frequency converter, a controller, and wireless communication is also provided in the middle of the lifting trolley 3. It can wirelessly communicate with the production control system to automatically control the travel position, travel speed and direction, lifting, unlocking, and other actions of the lifting trolley 3, so as to realize the functions of automatically hanging, unloading, and transporting the anode guide rod assembly 10. The hoisting lifting mechanism 5 provided on the lifting trolley can adjust the lifting height of the guide rod assembly 10 as needed, and can hang and lower the guide rod assembly 10 placed on the ground without the need for additional ground equipment and facilities to lift the guide rod assembly. The lifting trolley 3 is powered by a busbar laid along the track, and is automatically interlocked with the production main control system through wireless communication. It can automatically perform speed regulation, precise positioning, lifting, hanging and unloading, automatic unlocking, and other operations according to control instructions.

[0021] An unlocking push rod 8 is added to the top of the hanging bell 7, including a supporting frame fixed to the upper part of the bell 7, and a push rod is arranged between the frame and the unlocking head on the top of the bell 7. The telescopic movement direction of the push rod and the unlocking head of the hanging bell 7 are on a vertical center line. When the push rod is extended, the unlocking head on the top of the bell jar can be pressed down.

[0022] The unlocking push rod 8 can be a structural element such as an electro-hydraulic push rod, a screw, a gear rack, a worm gear, a rotating bolt, etc., which is directly provided with a telescopic action by a motor, without the need to connect any external hydraulic or pneumatic power. The power of the motor is obtained from the busbar 2 through the electric control box 9.

[0023] The double ropes 6 for hoisting can stably hang the hoisting bell 7, preventing the heavy objects below from excessively swinging during the start-stop operation. The hoisting lifting mechanism adopts a reverse-threaded double-rope drum to ensure that the heavy objects below are lifted by double ropes, preventing the objects from swinging and the risk of falling due to broken ropes.

[0024] Example: The anode assembly process at an aluminum electrolytic plant required a production capacity of 20 units per hour. Anode guide rod assemblies had been manually hoisted using a workshop crane. Electric hoists were installed in areas where ground equipment was concentrated, allowing for manual short-distance transport of anode guide rod assemblies. Short trips between workstations within the workshop were also handled by manually operated forklifts. All transfer and loading and unloading processes were manual on-site operations. To improve efficiency, reduce on-site labor, and enhance system safety, the plant decided to mechanize and automate its anode assembly workshop.

[0025] The preliminary renovation plan plans to adopt the catenary trolley method, with an estimated investment of approximately 12 million yuan in the catenary equipment, approximately 3 million yuan in the renovation of the ground equipment lifting mechanism, and approximately 6 million yuan in the renovation of the factory building's load-bearing foundation and structure. The total budget exceeds 20 million yuan.

[0026] The technical plan for the subsequent renovation was adjusted to incorporate a self-propelled lifting trolley system using the patented technology of this utility model. The total investment in the overhead track structure and foundation was less than 1 million yuan, and 20 self-propelled lifting trolleys were deployed, with 15 in continuous operation and 5 in standby. A single lifting trolley cycle on the production line takes approximately 35 to 40 minutes, and the 15 trolleys are transported in a sequential cycle, easily meeting the production capacity requirement of 20 units per hour. Furthermore, the suspended anode guide rod assemblies above each process equipment can automatically adjust their height, lift, unlock, and remove them as needed, eliminating the need for modifications or additions to ground-based equipment. The lifting trolleys are automatically interlocked and controlled in real time by the workshop's main control system via wireless communication, enabling automated operation of the entire system, eliminating the need for on-site manual operation. This allows for the mechanization and automation of the anode assembly process, and reduces the need for unmanned production, greatly improving system safety. The final total investment in the system renovation was only a few million yuan.

[0027] This device can automatically transport the anode guide rod components to various production stations in the anode assembly workshop, automatically raise and lower the guide rod height as needed, and interlock with the ground equipment operations at each station, thereby improving work efficiency while greatly reducing safety hazards and manual labor intensity.

[0028] The above describes in detail the automatic trolley device for lifting anode guide rod assemblies for electrolytic aluminum provided by the present invention. This article uses specific examples to illustrate the structure and working principle of the present invention. The description of the above embodiments is intended only to facilitate understanding of the method and core concept of the present invention. It should be noted that, for those skilled in the art, various improvements and modifications may be made to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. An automatic trolley device for lifting anode guide rod assemblies for electrolytic aluminum, characterized by: A plurality of long overhead rails (1) are arranged above a workshop where anode guide rod assemblies (10) need to be transported. A power supply busbar (2) is arranged horizontally along the overhead rails (1). A lifting trolley (3) is also suspended on the overhead rails (1). A traveling motor (4) is arranged on one side of the lifting trolley (3), and a hoisting lifting mechanism (5) is arranged on the other side. An electric control box (9) is arranged in the middle. The lifting trolley (3) is driven by the traveling motor (4) and slides along the overhead rails (1). A lifting bell (7) is connected to the bottom of the hoisting lifting mechanism (5) through a hoisting lifting double rope (6). The hoisting lifting mechanism (5) uses the hoisting lifting double rope (6) to stably hang the hoisting bell (7) and perform the lifting action. The hoisting bell (7) automatically locks and hooks the anode guide rod assembly (10); an unlocking push rod (8) is provided above the hoisting bell (7); the unlocking push rod (8) presses down the unlocking head on the top of the hoisting bell (7) to release and remove the anode guide rod assembly (10); the electric control box (9) obtains power and control power through the sliding contact line (2), and wirelessly communicates with the production control system to automatically control the operation of the hoisting trolley (3).

2. The automatic trolley device for lifting anode guide rod assemblies for electrolytic aluminum according to claim 1, characterized in that: The hoisting trolley (3) comprises two sets of front and rear wheels, a frame connected to the wheels, and a travel motor (4), an electric control box (9) and a winch lifting mechanism (5) are arranged on the frame.

3. The automatic trolley device for lifting anode guide rod assemblies for electrolytic aluminum according to claim 1, characterized in that: The electric control box (9) is provided with electric components, including but not limited to a frequency converter and a controller. The electric control box (9) obtains power from the busbar (2) and can realize wireless communication with the workshop main control system.

4. The automatic trolley device for lifting anode guide rod assemblies for electrolytic aluminum according to claim 1, characterized in that: The hoisting and lifting mechanism (5) adopts a reverse-threaded double-rope drum, and the hoisting and lifting double ropes (6) enable the hoisting bell (7) to perform a lifting action under the operation of the hoisting and lifting mechanism (5).

5. The automatic trolley device for lifting anode guide rod assemblies for electrolytic aluminum according to claim 1, characterized in that: The unlocking push rod (8) comprises a supporting frame fixed on the upper part of the hanging bell (7), a push rod is arranged between the frame and the unlocking head on the top of the hanging bell (7), the telescopic action direction of the push rod and the unlocking head of the hanging bell (7) are on a vertical center line, and the push rod presses down the unlocking head on the top of the bell when it is extended.

6. The automatic trolley device for lifting anode guide rod assemblies for electrolytic aluminum according to claim 1, characterized in that: The unlocking push rod (8) adopts structural elements whose telescopic action is directly provided by the motor, including but not limited to an electro-hydraulic push rod, a lead screw, a gear rack, a worm gear, and a rotating bolt. The power of the motor is obtained from the sliding contact line (2) through the electric control box (9).

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