CN205170182U - Connection structure is used in grab bucket of aluminium electroloysis hoisting equipment - Google Patents

Abstract

The utility model relates to a connection structure is used in grab bucket of aluminium electroloysis hoisting equipment. Connection structure includes driving lever, driven lever, drive connecting rod and linkage connecting rod, the both ends of driving lever and driven lever are connected with fixed connection seat and grab bucket lid respectively, the driving lever is connected to drive connecting rod one end, and the lug of initiative grab bucket is connected to the other end, initiative grab bucket and driven grab bucket are connected respectively to the both ends of linkage connecting rod, drag for the sediment grab bucket still including grab bucket switching hydro -cylinder, driving lever, driven lever, fixed connection seat and grab bucket lid constitute the parallel four link mechanism structure. The utility model designs a connection structure and consequently the optimal design parallel four link mechanism structure, ensured the utility model discloses drag for that sediment grab bucket connecting rod is small in quantity, simple structure, the fault point is few, maintenance is simple and convenient, drag for the sediment for effective realization and grab bucket the sympathetic vibration that snatchs of bigger degree and fall the residue and provide strong technical foundation.

Description

Connection structure for grab bucket of aluminum electrolysis lifting equipment

technical field

The utility model relates to a slag scooping device for aluminum electrolysis lifting equipment, in particular to a connection structure suitable for grab buckets of aluminum electrolysis lifting equipment.

Background technique

At present, the slag grab in aluminum electrolytic lifting equipment generally adopts a vertical structure, and the grab is driven to open and close by a pneumatic control mechanism, and it goes deep into the high-temperature electrolyte of the electrolytic cell to pick up the slag. But, the upright structural form that generally adopts now has the following deficiencies:

Due to the dead angle of the closed curve of the tip of the slag grab in the prior art, it is difficult to catch the residue at the edge of the electrolytic cell. It is necessary to manually rake the residue to the middle of the electrolytic cell so that the grab can grab the residue, resulting in Time-consuming and labor-intensive in the process of grabbing residue.

Due to the limitation of the space position, there are great limitations on the size and shape of the grab bucket. The grab bucket in the vertical structure form cannot be made too large, so it will increase the number of times to grab the same amount of residue and The prolongation of time leads to a particularly large loss of electrolytic cell temperature, which increases the cost. And in the process of releasing the residue, due to the limitation of the structural form, the high temperature residue is easy to fuse with the bucket body of the grab bucket, affecting the normal use and life of the grab bucket. When the lower limit of the lifting mechanism of the grab bucket fails, it is easy to cause the tip of the grab bucket to directly touch the bottom of the electrolytic tank, which poses a great potential safety hazard and brings extremely dangerous safety accidents.

For the slag grab for aluminum electrolysis lifting equipment, such as the slag grab mentioned in the patent application with the application number CN201320016888.9, a fixed guide column is connected to the bottom of the hydraulic lifting column, and one side of the fixed guide column passes through the The auxiliary connecting rod is connected to the moving column, and the lower end of the fixed guide column and the moving column is connected with the balance beam of the grab mechanism, so that the grab mechanism extends to the other side of the hydraulic lifting column; the right or left grab is driven by the grab The rod is connected to the pin shaft of the hanging plate, and the pin shaft on the hanging plate of the right grab or left grab is connected to the driving plate; the driving plate is connected to the piston rod end of the driving cylinder through the connecting rod mechanism, and the moving column is composed of an auxiliary connecting component and a fixed guide column. Connection, the auxiliary connection component hinges the driving rod of the moving column, and the other end of the driving rod of the moving column is directly or indirectly connected to the piston rod end of the driving cylinder. The grab bucket damages the electrolyzer. Moreover, the structure is complex, the number of connecting rods is large, the maintenance is inconvenient, the operation is not stable, the manufacturing cost is high, and the power transmission energy consumption is high.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a connection structure for the grab bucket of the aluminum electrolysis lifting equipment. Based on the connection structure, the technical deficiency of the grab bucket of the existing aluminum electrolysis lifting equipment can be effectively solved.

Another technical problem to be solved by the utility model is to provide a slag grab for aluminum electrolysis lifting equipment. The slag grab is simple in structure, safe and durable, easy to maintain, and can achieve greater Grabs and shakes off debris.

The technical scheme that the utility model adopts in order to solve the problems of the prior art is as follows:

A connection structure for a grab of aluminum electrolysis lifting equipment is provided, the grab of aluminum electrolysis lifting equipment includes a grab mechanism used in conjunction with a hydraulic lifting column of a crane, and the grab mechanism includes an active grab, a driven grab Bucket and grab cover, the active grab and the driven grab are respectively connected to both sides of the grab cover, the active grab and the driven grab are respectively provided with lugs; the lower end of the hydraulic lifting column is fixed Connecting seat; the connecting structure includes a driving rod, a driven rod, a driving connecting rod and a linkage connecting rod, and the two ends of the driving rod and the driven rod are respectively connected with the fixed connecting seat and the grab cover; the driving connecting rod One end is connected to the active rod, and the other end is connected to the lug of the active grab; the two ends of the linkage connecting rod are respectively connected to the active grab and the driven grab.

In the connection structure of the utility model, the active rod, the driven rod, the fixed connection seat and the grab cover form a parallel four-bar linkage structure. The utility model designs the connecting structure and therefore optimizes the design of the parallel four connecting rod structure. Compared with the prior art, the number of connecting rods is small, the structure is simple, the fault points are few, and the maintenance is simple. It provides a strong technical basis for the capture and vibration of debris. At the same time, the parallel four-bar linkage structure can effectively avoid the great potential safety hazards and extremely dangerous safety accidents that may occur when the lower limit of the lifting mechanism of the grab fails and the tip of the grab directly touches the bottom of the electrolytic tank. And other issues.

The driving link is designed in the connection structure of the utility model, and the level of motion track of the grab is realized by the drive link as a compensation mechanism in the process of rising and falling of the grab bucket. The track of the bucket tip during the opening and closing process of the grab bucket is Straight and horizontal to reduce accidental scratches to the bottom of the electrolytic cell.

Based on the connection structure for the aluminum electrolysis lifting equipment grab, the utility model also provides a slag grab for aluminum electrolysis lifting equipment, as mentioned above, including a grab used in conjunction with the hydraulic lifting column of the crane mechanism, the grab mechanism includes an active grab, a driven grab, and a grab cover. The active grab and the driven grab are respectively connected to both sides of the grab cover. The active grab and the driven grab The buckets are respectively provided with lugs; the lower end of the hydraulic lifting column is provided with a fixed connection seat; it also includes the aforementioned connection structure; on the fixed connection seat;

The active grab is provided with first and second lugs, the piston rod of the opening and closing cylinder of the grab is connected to the first lug of the active grab, and the other end of the drive connecting rod is connected to the second lug of the active grab. Ear.

The two ends of the active rod and the driven rod are respectively connected with the fixed connecting seat and the grab cover through pin shafts.

Both ends of the drive link are connected with the active rod and the second lug of the active grab through a pin shaft.

Both ends of the linkage connecting rod are connected with the active grab and the driven grab through pin shafts.

Preferably, the opening and closing center line of the grab mechanism and the center line of the hydraulic lifting column adopt an eccentric structure.

Preferably, the grab mechanism reaches the other end of the hydraulic lifting column with an extension length of 0-10 meters.

Preferably, a guide slider is installed between the fixed connection seat and the grab cover.

Preferably, the input end of the grab opening and closing oil cylinder is connected to the hydraulic station of the crane, or the input end of the grab opening and closing cylinder is connected to the air storage tank of the crane.

Preferably, the grab opening and closing oil cylinder or air cylinder is installed on the side of the fixed connection seat.

Compared with the prior art, the utility model has the following beneficial effects:

The utility model designs a connection structure. Based on the connection structure, the active rod, the driven rod, the fixed connection seat and the grab cover form a parallel four-bar linkage structure. Compared with the prior art, the number of linkages is small and the structure is simple. , fewer fault points, and easy maintenance, providing a strong technical foundation for effectively realizing a greater degree of grabbing and shaking off residues by the slag grab.

The driving link is designed in the connection structure of the utility model, and the level of motion track of the grab is realized by the drive link as a compensation mechanism in the process of rising and falling of the grab bucket. The track of the bucket tip during the opening and closing process of the grab bucket is Straight and horizontal to reduce accidental scratches to the bottom of the electrolytic cell.

The utility model further improves the original structure in which the grab mechanism and the hydraulic lifting column are located on the same straight line so that the grab mechanism is placed on the side of the hydraulic lifting column. The bucket does not need to be close to the position where the anode guide rod is installed to directly grab the residue in the middle of the electrolytic tank, and the grabbing speed is fast, and there is a lot of slag at one time, which reduces the loss of the temperature of the electrolytic tank, thereby saving costs; the utility model adopts The parallel four-bar linkage has the advantages of simple structure, less number of linkages, fewer failure points, easy maintenance, more stable operation, safe and reliable work, low manufacturing cost, and less energy consumption in power transmission; at the same time, the utility model is designed with a compensation mechanism, a grab During the opening and closing process, the motion trajectory of the bucket tip is a horizontal straight line, which reduces accidental scratches on the bottom of the electrolytic tank.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the grab bucket of the utility model in a closed state.

Fig. 2 is a structural schematic diagram of the utility model when the grab bucket is opened.

In the figure, 1. Hydraulic lifting column, 2. Active grab, 3. Driven grab, 4. Fixed connection seat, 5. Grab cover, 6. Parallel four linkage active rod, 7. Parallel four linkage from Moving rod, 8. Drive connecting rod, 9. Linkage connecting rod, 10. Grab opening and closing cylinder, 11. Grab opening and closing cylinder piston rod, 12. Active grab first lug, 13. Active grab second lugs.

detailed description

Further illustrate the utility model below in conjunction with specific embodiment. Unless otherwise specified, the raw materials and methods used in the embodiments of the present invention are conventional commercially available raw materials and conventionally used methods in the art.

Example 1

As shown in Figure 1, this embodiment provides a connection structure for a grab bucket of an aluminum electrolysis lifting device. The aluminum electrolysis lifting equipment grab includes a grab mechanism used in conjunction with the hydraulic lifting column 1 of the crane. The grab mechanism includes an active grab 2, a driven grab 3, and a grab cover 5. The active grab The bucket 2 and the driven grab 3 are respectively connected to both sides of the grab cover 5, and the active grab 2 and the driven grab 3 are respectively provided with lugs; the lower end of the hydraulic lifting column 1 is provided with a fixed connection seat 4; The connecting structure includes a driving rod 6, a driven rod 7, a driving connecting rod 8 and a linkage connecting rod 8, and the two ends of the driving rod 6 and the driven rod 7 are respectively connected with the fixed connecting seat 4 and the grab cover 5; One end of the drive link 8 is connected to the active rod 6, and the other end is connected to the lug of the active grab 2; the two ends of the linkage link 9 are respectively connected to the active grab 2 and the driven grab 3. The active rod 6, the driven rod 7, the fixed connection seat 4 and the grab cover 5 form a parallel four-bar linkage structure.

The structure schematic diagram of the slag grabbing bucket for aluminum electrolysis lifting equipment in the closed state is shown in Figure 1. As mentioned above, the grab opening and closing oil cylinder 10 is arranged on one side of the fixed connection seat 4, and the grab opening and closing oil cylinder piston rod 11 is connected with the first lug 12 of the active grab through a pin shaft. The lower end of the fixed connection seat 4 is connected to the grab cover 5 through the parallel four-bar active rod 6 and the parallel four-link driven rod 7, and the parallel four-bar active rod 6 and the parallel four-link driven rod 7 The two ends of the two ends are respectively connected with the fixed connection seat 4 and the grab cover 5 through the pin shaft, and the parallel four-bar active rod 6 is connected with the second lug 13 of the active grab through the driving connecting rod 8, and the driving connecting rod 8 The two ends of the parallel four-bar linkage active rod 6 and the second lug 13 of the active grab are connected through the pin shaft, and the active grab 2 and the driven grab 3 are connected by a linkage link 9, and the linkage linkage The two ends of the rod 9 are connected with the active grab bucket 2 and the driven grab bucket 3 through pin shafts.

Combined with the structural schematic diagram of the grab in the closed state in Fig. 1, the working process of the embodiment is as follows: when the piston rod 11 of the opening and closing cylinder of the grab grab is retracted, the active grab 2 and the driven grab 3 are driven by the linkage connecting rod 9 Synchronous closure. At the same time, the rotation of the active grab 2 drives the drive link 8 to move, and the grab cover 5 is used as a reference. During the opening process of the grab, the movement of the drive link 8 drives the parallel four-bar active rod 6 to move to the grab cover. 5. The hinge hole is used as the base point to rotate clockwise; the fixed connection seat 4 will move in translation to the direction of the grab cover 5 under the connection effect of the parallel four-bar linkage active rod 6 and the parallel four-bar linkage follower rod 7; When the bucket continued to be opened, the motion of the drive connecting rod 8 drove the parallel four-bar linkage active rod 6 to rotate counterclockwise with the grab cover 5 hinge shaft holes as the base point. The fixed connecting seat 4 will move in translation away from the grab cover 5 under the connection effect of the parallel four-bar linkage active rod 6 and the parallel four-bar linkage driven rod 7 . The structure diagram of the grab bucket of the utility model in the open state is shown in Figure 2. Therefore, when the grab is opened once, the fixed connecting seat 4 will reciprocate once up and down, and during the opening process, the distance between the tip of the grab bucket and the fixed connecting seat 4 in the vertical direction remains constant. . Similarly, during the closing process of the grab bucket, the distance between the bucket tip of the grab bucket and the fixed connection seat 4 in the vertical direction remains constant at a constant value.

The utility model adopts an optimized parallel four-bar linkage structure as the connection structure for the grab bucket of the aluminum electrolytic lifting equipment. Compared with the prior art, the utility model has fewer connecting rods, a simple structure, fewer failure points, and easy maintenance. The slag grab provides a strong technical foundation for greater grabbing and shaking off of slag.

The utility model further improves the original structure in which the grab mechanism and the hydraulic lifting column are located on the same straight line so that the grab mechanism is placed on the side of the hydraulic lifting column. The bucket does not need to be close to the position where the anode guide rod is installed to directly grab the residue in the middle of the electrolytic tank, and the grabbing speed is fast, and there is a lot of slag at one time, which reduces the loss of the temperature of the electrolytic tank, thereby saving costs; the utility model adopts The parallel four-bar linkage has the advantages of simple structure, less number of linkages, fewer failure points, easy maintenance, more stable operation, safe and reliable work, low manufacturing cost, and less energy consumption in power transmission; at the same time, the utility model is designed with a compensation mechanism, a grab During the opening and closing process, the motion trajectory of the bucket tip is a horizontal straight line, which reduces accidental scratches on the bottom of the electrolytic tank.

Apparently, the above-mentioned embodiments are only examples for clearly illustrating the technical solution of the present utility model, rather than limiting the implementation manner of the present utility model. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. All modifications, equivalent replacements and improvements made within the spirit and principles of the utility model shall be included in the protection scope of the claims of the utility model.

Claims (4)

1. an aluminum electrolysis hoisting equipment grab bucket connection structure, the grab bucket of described aluminum electrolysis hoisting equipment comprise with the hydraulic lifting post of hoisting crane with the use of grab bucket mechanism, described grab bucket mechanism comprises initiatively grab bucket, driven grab bucket, grab bucket lid, described active grab bucket is connected to the both sides of grabbing bucket and covering with driven grab bucket, and described active grab bucket and driven grab bucket are respectively equipped with lug; Described hydraulic lifting post lower end arranges fixed connecting base; It is characterized in that, described connection structure comprises driving lever, follower lever, drive link and interlock connecting rod, and described driving lever is connected with grabbing bucket to cover with fixed connecting base respectively with the two ends of follower lever; Described drive link one end connects driving lever, and the other end connects the lug of initiatively grab bucket; The two ends of described interlock connecting rod connect initiatively grab bucket and driven grab bucket respectively; Described driving lever, follower lever, fixed connecting base and grab bucket lid form parallel―ordinal shift structure.

2. aluminum electrolysis hoisting equipment grab bucket connection structure according to claim 1, is characterized in that, described driving lever and the two ends of follower lever are respectively with fixed connecting base with grab bucket to cover and be connected by bearing pin.

3. aluminum electrolysis hoisting equipment grab bucket connection structure according to claim 1, is characterized in that, the two ends of described drive link are connected by bearing pin and driving lever, initiatively the second lug of grabbing bucket.

4. aluminum electrolysis hoisting equipment grab bucket connection structure according to claim 1, is characterized in that, the two ends of described interlock connecting rod be by bearing pin with initiatively grab bucket, driven grab bucket be connected.