Guide device of crown block barrel type grab bucket mechanism

Abstract

The utility model discloses a crown block barrel type grab bucket mechanism guiding device which comprises a guiding block base used for being installed on a cylinder barrel, a guiding block arranged on the guiding block base and an adjusting bolt arranged on the bottom face of the guiding block. The gap between the guide blocks can be adjusted by adjusting the guide block base or the adjusting bolt at the bottom of the base sealing plate, and the operation stability of the grab bucket mechanism is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum electrolysis production professional equipment, in particular to a guide device for a crown block barrel grab bucket mechanism. Background Art

[0002] The multifunctional overhead crane is a professional equipment for aluminum electrolysis production. The grab mechanism is the core component of the tool car mechanism of the electrolytic aluminum overhead crane. It is mainly used to clean the electrolytic residues and large pieces of materials in the electrolytic cell during the electrolytic production pole change process. Its performance directly affects the electrolytic production efficiency.

[0003] The grab mechanism is a barrel structure, and its lifting is achieved by the built-in single hydraulic cylinder driving the chains on both sides. The relative distance between the cylinders of the original grab mechanism is determined by the fixed-size guide blocks on the inner wall of the cylinder. Four symmetrically distributed guide blocks are set on the four sides of the two cylinders, and the guide blocks are made of nylon. Since the guide blocks are fixed, their gaps cannot be adjusted. The grab mechanism needs to be lifted and lowered frequently during use. In addition, the nylon material has poor wear resistance and the guide blocks are severely worn, resulting in a larger gap between the cylinders and a difficult relative position between the cylinders. The grab mechanism swings frequently, and the chain often scrapes against the barrel wall during the lifting process, and the chain is separated from the guide groove, resulting in aggravated wear or deformation of the chain side. Frequent movement of the chain is prone to breakage. If the grab mechanism fails during the electrolysis during the pole-changing operation, the steel claws at the bottom of the grab mechanism will not be able to detach from the electrolytic cell. The steel claws are soaked in the electrolytic cell for more than 30 minutes, and the lower part of the steel claws will be melted by the high-temperature electrolyte, affecting the normal use of the electrolytic production vehicle. Utility Model Content

[0004] The utility model aims to provide a guide device for a crown block barrel grab bucket mechanism, so as to achieve the purpose of improving the running stability of the grab bucket mechanism.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] A guide device for a crown block barrel grab bucket mechanism comprises a guide block base for being mounted on a cylinder barrel, a guide block arranged on the guide block base, and an adjusting bolt arranged on the bottom surface of the guide block.

[0007] Preferably, a base sealing plate is provided on the guide block base, the base sealing plate is connected to the guide block base via fixing bolts, and the adjusting bolts are provided on the base sealing plate.

[0008] Preferably, the guide block base is a box-type structure.

[0009] Preferably, the guide block is a self-lubricating guide block made of high-strength brass and graphite, with dimensions of 50 mm in height and 30 mm in thickness.

[0010] Preferably, the guide block base has a thickness of 10 mm to 12 mm.

[0011] Preferably, the base cover plate has a thickness of 10 mm to 12 mm.

[0012] Preferably, the fixing bolt is an M10*25 hexagonal bolt, the adjusting bolt is an M16 hexagonal bolt, and the bolt strength is not less than grade 8.8. When the mechanism is in a vertical state, adjust the gap of the guide cylinder of the grab mechanism. The gap adjustment must ensure that the mechanism is lifted and lowered without swinging or abnormal sound.

[0013] Compared with the prior art, the utility model has achieved the following technical effects:

[0014] 1. The gap of the guide block in the utility model can be adjusted by adjusting the adjusting bolts at the bottom of the guide block base or the base cover plate to ensure the stability of the grab mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments are briefly introduced below. 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 creative work.

[0016] Figure 1 This is a schematic diagram of the structure of the first section of the cylinder guide device of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the second cylinder guide device of the utility model;

[0018] Among them, 1 is a guide block, 2 is a guide block base, 3 is a base cover plate, 4 is a fixing bolt, and 5 is an adjusting bolt. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The utility model aims to provide a guide device for a crown block barrel grab bucket mechanism, so as to achieve the purpose of improving the running stability of the grab bucket mechanism.

[0021] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] refer to Figure 1 to Figure 2 A guide device for a crown block barrel grab mechanism comprises a guide block base for installation on a cylinder, a guide block arranged on the guide block base, and an adjusting bolt arranged on the bottom surface of the guide block; in the utility model, the gap of the guide block can be adjusted by adjusting the adjusting bolt at the bottom of the guide block base or the base cover plate to ensure the operation stability of the grab mechanism.

[0023] refer to Figure 1 A base sealing plate is arranged on the guide block base, the base sealing plate is connected to the guide block base through fixing bolts, and the adjusting bolts are arranged on the base sealing plate. The guide device is installed and welded on the cylinder barrel.

[0024] Furthermore, four sets of guide devices for the overhead crane barrel grab mechanism are symmetrically arranged on the fixed side of the first section of the cylinder chain, and the base thereof has a sealing plate, and two sets of guide devices for the overhead crane barrel grab mechanism are arranged on the center lines of the other two sides. The four sets of guide devices are arranged on the fixed side of the chain, and their function is to adjust the gap between the cylinder barrels and guide the lifting and lowering of the chain. Two sets of guide devices are arranged on the center lines of the other two sides, reducing the original four sets (4 points) to two sets (2 points), reducing the friction between the cylinder barrels, and ensuring better adjustment of the spacing of the cylinder barrels.

[0025] Furthermore, for the second section cylinder guide device, since the space between the second section cylinder and the third section cylinder is small, the base sealing plate is cancelled for the second section cylinder guide block base, and the adjusting bolt is directly set at the bottom of the guide block base. The thickness of the base plate of the guide block is 25mm, the height of the box structure is 15mm, and the wall thickness of the box structure is 8mm. The guide device is set with four sets of devices on the four sides of the second section cylinder. The horizontal installation of the guide device must be staggered with the first section cylinder guide device. At the same time, the movement space of the chain must be reserved on the chain fixed side to avoid interference. The longitudinal installation of the guide device must be when the mechanism is at the lower limit position, and the grab bucket cylinder must be completely in contact with the guide blocks of the upper and lower guide devices.

[0026] Furthermore, the guide block base is a box-type structure; the material of the guide block base is 35# steel, which has high structural strength, excellent comprehensive material performance, and can improve stability during use; the outer and inner surfaces of the guide block base must be smooth. To ensure the processing accuracy of the base, the holes of the guide block base box structure should be processed by wire cutting, with a surface roughness of less than 3.2Ra, and the base hole system H8 / f7 matching method should be used, with a processing accuracy of I T10. All sharp angles of the guide block base must be blunted, and the front and rear steps of the base must ensure parallelism, ensure full contact between the guide block and the cylinder, and adjust the guide block.

[0027] Furthermore, the guide block is a self-lubricating guide block made of high-strength brass and graphite. It has good wear resistance and corrosion resistance, strong bearing capacity, dimensions of 50 mm in height and 30 mm in thickness, and a processing accuracy of I T10. It can achieve oil-free lubrication and does not require manual regular addition of lubricating oil to ensure the cleanliness of the grab mechanism.

[0028] Furthermore, the thickness of the guide block base is 10 mm to 12 mm.

[0029] Furthermore, the thickness of the base cover plate is 10 mm to 12 mm.

[0030] Furthermore, the fixing bolt is an M10*25 hexagonal bolt, the adjusting bolt is an M16 hexagonal bolt, the bolt strength is not less than grade 8.8, and the mechanism is in a vertical state and then the gap of the guide cylinder of the grab mechanism is adjusted. The adjustment of the gap must ensure that the mechanism is raised and lowered without swinging or abnormal noise.

[0031] Adaptive changes made according to actual needs are all within the protection scope of this utility model.

[0032] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numerals in the claims should not be regarded as limiting the claims involved.

Claims

1. A guide device for a crown block bucket mechanism, characterized in that: It comprises a guide block base for mounting on the cylinder barrel, a guide block arranged on the guide block base, and an adjusting bolt arranged on the bottom surface of the guide block; A base sealing plate is arranged on the guide block base, the base sealing plate is connected to the guide block base via fixing bolts, and the adjusting bolts are arranged on the base sealing plate.

2. The guide device for a crown block bucket mechanism according to claim 1, characterized in that: The guide block base is a box-type structure.

3. The guide device for a crown block bucket grab mechanism according to claim 1, characterized in that: The guide block is a self-lubricating guide block made of high-strength brass and graphite, with dimensions of 50 mm in height and 30 mm in thickness.

4. The guide device for a crown block bucket grab mechanism according to claim 1, characterized in that: The thickness of the guide block base is 10 mm to 12 mm.

5. The guide device for a crown block bucket grab mechanism according to claim 1, characterized in that: The thickness of the base sealing plate is 10 mm to 12 mm.

6. A guide device for a crown block bucket grab mechanism according to claim 5, characterized in that: The fixing bolt specification is an M10*25 hexagonal bolt, the adjusting bolt specification is an M16 hexagon socket bolt, and the bolt strength is not less than grade 8.8.

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