CN204702416U - The grab mechanisms that a kind of level is fished for - Google Patents

Abstract

A grab device for horizontal fishing relates to the improvement of the grab device for slag dredging in an electrolytic aluminum workshop. The utility model provides a grabbing device with low failure rate and utilizing a purely mechanical structure to realize horizontal fishing. The utility model comprises a left bucket body and a right bucket body, and a first box body and a second box body composed of a vertical section and a horizontal section, the upper left end of the left bucket body and the upper right end of the right bucket body are the same as the first box body A box hinged, characterized in that: the middle part of the vertical section of the first box is provided with a cylinder with a piston rod upward, the upper end of the piston rod is hingedly provided with a second connecting rod, the second connecting rod is provided with a tripod, the tripod One end point of the tripod is arranged in the middle of the second connecting rod, the second end point of the tripod is arranged at the end of the second connecting rod and is hinged with the third connecting rod, and the third end point of the tripod is hinged with the fourth connecting rod; A triangular driving frame is arranged above the right bucket body, and the right end of the driving frame is hinged with the third connecting rod.

Description

A Grab Device for Horizontal Fishing

technical field

The utility model relates to the improvement of a grabbing bucket device for slag removal in an electrolytic aluminum workshop.

Background technique

The aluminum electrolytic multifunctional crane is the key equipment for the production of prebaked anode electrolytic aluminum, and it undertakes the main process of electrolytic cell production. The slag removal device is one of the main tools of the aluminum electrolysis multifunctional crane. When the electrolytic aluminum workshop pulls out the burnt anode, there are residual carbon blocks, covering materials and other sundries falling into the anode pit, the slag removal device can replace Manually clean the residue in the anode pit to reduce the labor intensity of workers and improve production efficiency. The lower part of the bucket body of the traditional slag cleaning device runs with the fishing action, and the running track of the lower end of the grab bucket is arc-shaped, and there is a cleaning dead angle, which cannot clean up the residue in the electrolytic cell at one time, and requires multiple times of slag removal or manual cleaning. Intervention can completely clean up.

Due to the above problems, some horizontal grab devices have also appeared on the market. These horizontal grab devices use electrical components to detect the running track of the grab, and then calculate the lifting range of the grab according to the track, and control the timely movement of the grab. Carry out lifting movement, so as to achieve the purpose of grabbing horizontally. Although this kind of grab device controlled by electrical components can meet the requirements in terms of function, due to the harsh environment in the aluminum electrolysis workshop, the service life of electrical components will be seriously affected. Therefore, damage to electrical components often occurs. The amount of maintenance is increased, and the production cost is increased.

Contents of the invention

The utility model aims at the above problems and provides a grab device with a low failure rate and a purely mechanical structure to achieve horizontal fishing.

In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical scheme, the utility model comprises a left bucket body and a right bucket body, and a first box body and a second box body each composed of a vertical section and a horizontal section, The upper left end of the left bucket body and the upper right end of the right bucket body are hinged with the first box body, and it is characterized in that: the middle part of the vertical section of the first box body is provided with a cylinder with an upward piston rod, and the upper end of the piston rod is hingedly provided with a The second connecting rod, the second connecting rod is provided with a tripod, one end point of the tripod is arranged at the middle part of the second connecting rod, and is hinged with the first box near the side of the second box, the second of the tripod The first end point is arranged on the end of the second connecting rod and is hinged with the third connecting rod, and the third end point of the tripod is hinged with the fourth connecting rod; the fourth connecting rod is close to the lower end of the second box vertical section One side of a box is hinged, a triangular driving frame is arranged above the right bucket body, the right end of the driving frame is hinged with the third connecting rod, and the upper end of the driving frame is hingedly provided with a fifth connecting rod , the end of the fifth connecting rod is hinged with the upper right end of the left bucket body; the horizontal section of the first box body and the horizontal section of the second box body are provided with long holes and pins that cooperate with each other.

Beneficial effects of the utility model: the first box body of the utility model is driven by the cylinder and the connecting rod mechanism to form a relative lifting motion with the second box body, during the fishing action process of the left bucket body and the right bucket body, The trajectory of the lower ends of the left bucket and the right bucket is in a straight line, there is no dead angle in fishing, and there is no damage to the bottom of the tank. During the cleaning operation, it can be grasped thoroughly at one time, without multiple cleaning and manual participation.

In addition, the utility model has a purely mechanical structure. Compared with the method of controlling by electrical components in the prior art, the utility model is more adaptable to harsh environments, is not easy to be damaged, and is easy to maintain.

Description of drawings

Fig. 1 is the structure diagram when the left bucket body and the right bucket body of the utility model are closed.

Fig. 2 is a schematic diagram of the structure of the utility model when the left bucket body and the right bucket body are opened.

In the accompanying drawings, 1 is the left bucket body, 2 is the right bucket body, 3 is the fifth connecting rod, 4 is the pin shaft, 5 is the long hole, 6 is the connecting plate, 7 is the driving frame, 8 is the third connecting rod, 9 10 is a cylinder, 11 is a tripod, 12 is a piston rod, 13 is a second connecting rod, 14 is a first casing, 15 is a second casing, and 16 is a first connecting rod.

Detailed ways

The utility model comprises a left bucket body 1 and a right bucket body 2, and a first box body 14 and a second box body 15 which are both composed of a vertical section and a horizontal section. The upper left end of the left bucket body 1 and the right bucket body The upper right end of 2 is hinged with the first box body 14, and it is characterized in that: the middle part of the vertical section of the first box body 14 is provided with the cylinder 10 with the piston rod 12 upward, and the upper end of the piston rod 12 is hingedly provided with the second connecting rod 13, The second connecting rod 13 is provided with a tripod 11, and an end point of the tripod 11 is arranged at the middle part of the second connecting rod 13, and is hinged with the first box body 14 near the side of the second box body 15, and the tripod 11 The second end point is arranged on the end of the second connecting rod 13 and is hinged with the third connecting rod 8, and the third end point of the tripod 11 is hinged with the fourth connecting rod 9; the fourth connecting rod 9 is connected with the second box The lower end of the vertical section of the body 15 is hinged close to the side of the first box body 14, and a triangular drive frame 7 is arranged above the right bucket body 2, and the right end of the drive frame 7 is hinged with the third connecting rod 8 , the upper end point of the driving frame 7 is hingedly provided with a fifth connecting rod 3, and the end of the fifth connecting rod 3 is hinged with the upper right end of the left bucket body 1; the horizontal section of the first box body 14 and the horizontal section of the second box body 15 A long hole 5 and a pin shaft 4 cooperating with each other are arranged therebetween.

A first connecting rod 16 is arranged between the upper ends of the vertical section of the first box body 14 and the second box body 15, and the two ends of the first connecting rod 16 are respectively hinged with the first box body 14 and the second box body 15 .

The joint between the first box body 14 and the second connecting rod 13 and the joint joint between the second box body 15 and the fourth connecting rod 9 are arranged on the same vertical line.

A connecting plate 6 is arranged below the end of the horizontal section of the second box body 15 , the long hole 5 is set on the connecting plate 6 , and the pin shaft 4 is set on the first box body 14 .

A course of action of the present utility model is described below in conjunction with accompanying drawing: when the grab bucket is opened, the piston rod 12 of cylinder 10 moves downwards, and the second connecting rod 13 rotates around the hinge point in the middle, thereby driving the tripod 11 to rotate, and the tripod 11 Drive the drive frame 7 of the right bucket body 2 to rotate through the third connecting rod 8, and the right bucket body 2 opens under the control of the drive frame 7. At the same time, the drive frame 7 controls the left bucket body 1 through the fifth connecting rod 3 Open at the same time as the right bucket body 2; during the opening process of the bucket body, the first box body 14 and the second box body 15 are under the joint action of the first connecting rod 16, the fourth connecting rod 9, the long hole 5 and the pin shaft 4 , resulting in relative movement up and down, thereby compensating for the height of the arcs generated at the lower ends of the left bucket body 1 and right bucket body 2 during the opening process, and realizing that the lower end of the bucket body is always on a linear motion track during the opening process.

The bucket body closing process is completely opposite to the above bucket body opening process.

It can be understood that the above specific description of the utility model is only used to illustrate the utility model and is not limited to the technical solutions described in the embodiments of the utility model. Those of ordinary skill in the art should understand that the utility model can still be Modifications or equivalent replacements are carried out to achieve the same technical effect; as long as the requirements of use are met, they are all within the protection scope of the present utility model.

Claims (4)

1. A grab device for horizontal grabbing, comprising a left bucket (1) and a right bucket (2), and a first box (14) and a second box (14) composed of a vertical section and a horizontal section ( 15), the upper left end of the left bucket (1) and the upper right end of the right bucket (2) are hinged with the first box (14), characterized in that: the middle of the vertical section of the first box (14) The cylinder (10) with the piston rod (12) upwards is arranged, the upper end of the piston rod (12) is hingedly provided with a second connecting rod (13), and the second connecting rod (13) is provided with a tripod (11), the tripod One end point of (11) is set in the middle of the second connecting rod (13), and is hinged with the side of the first box body (14) close to the second box body (15), and the second end point of the tripod (11) Set at the end of the second connecting rod (13) and hinged with the third connecting rod (8), the third end point of the tripod (11) is hinged with the fourth connecting rod (9); the fourth connecting rod ( 9) It is hinged with the lower end of the vertical section of the second box body (15) close to the side of the first box body (14), and a triangular drive frame (7) is arranged above the right bucket body (2), and the drive frame ( The right end of 7) is hinged with the third connecting rod (8), the upper end of the driving frame (7) is hinged with the fifth connecting rod (3), and the end of the fifth connecting rod (3) is connected with the left bucket The upper right end of the body (1) is hinged; between the horizontal section of the first box body (14) and the horizontal section of the second box body (15), there are long holes (5) and pin shafts (4) that cooperate with each other. 2. A grab device for horizontal grabbing according to claim 1, characterized in that: a first The connecting rod (16), the two ends of the first connecting rod (16) are respectively hinged with the first box body (14) and the second box body (15). 3. A grab device for horizontal fishing according to claim 1, characterized in that: the hinge joint between the first box (14) and the second connecting rod (13) and the second box (15) and The hinge of the fourth connecting rod (9) is arranged on the same vertical line. 4. A grab device for horizontal fishing according to claim 1, characterized in that: a connecting plate (6) is arranged below the end of the horizontal section of the second box body (15), and the long hole ( 5) It is arranged on the connecting plate (6), and the pin shaft (4) is arranged on the first box body (14).