Maintenance assembly for replacing middle disc carrier roller of electric shovel without disassembly

Abstract

The utility model discloses a maintenance assembly for replacing a middle disc carrier roller of an electric shovel without disassembly, which comprises a carrier roller supporting assembly and a carrier roller clamping assembly, when the electric shovel is maintained, the carrier roller supporting assembly is welded on a top bottom plate in an electric shovel maintenance hole through a shaft seat body, and the carrier roller clamping assembly is used for clamping the carrier roller to be replaced. And then one end of the steel wire rope is connected with a shackle at the top of the carrier roller clamping assembly, the other end of the steel wire rope is in lap joint with a rotating shaft of the carrier roller supporting assembly, and a maintainer standing on the lower side of the electric shovel access hole pulls the steel wire rope, so that the carrier roller can be pulled out of the carrier roller frame. When a new carrier roller is installed, the new carrier roller is clamped through the carrier roller clamping assembly, the steel wire rope wound around the rotating shaft is pulled, the new carrier roller is lifted to the corresponding height, and the carrier roller can be placed at the position of the carrier roller frame by being pushed and held by personnel. The maintenance assembly has the advantages of being simple in structure, convenient and fast to maintain, clean, sanitary, time-saving, labor-saving and capable of reducing labor intensity.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of mine mining equipment, especially a kind of overhaul assembly of non-disassembly replacement of electric shovel middle disc roller. BACKGROUND

[0002] KW-4B electric shovel has 36 rollers, respectively between upper and lower annular tracks, the role is to support middle disc, middle disc is under the action of rotary motor, with central pivot as center, reciprocating rotation on roller, to realize shovel loading operation. Therefore, the rotation of electric shovel middle disc is the key to ensure normal shovel loading of electric shovel. Due to the long overhaul period of electric shovel, uneven floor, oiling not in time, gnawing root bottom retaining wall and improper operation of operator, often cause roller or graphite roller damage and wear beyond limit, need to be replaced in time. The replacement of roller is generally in the overhaul of electric shovel after a period of use, i.e. replacement after disassembly, and the roller is not replaced in large area in general, but due to roller wear, it is necessary to replace in large area, if disassembly and overhaul time is too long, production is seriously delayed. And the space of electric shovel overhaul hole is small, and there is much butter on roller and graphite roller, and each time replacement and overhaul personnel are full of black oil, and due to small space, personnel cannot operate easily, which causes many unsafe factors such as hand squeezing and foot crushing. CONTENT OF UTILITY MODEL

[0003] The utility model aims at providing a kind of overhaul assembly of non-disassembly replacement of electric shovel middle disc roller, to realize the quick replacement of roller.

[0004] To achieve its purpose, the utility model adopts the following technical solutions:

[0005] A kind of overhaul assembly of non-disassembly replacement of electric shovel middle disc roller, including roller support assembly and roller clamping assembly;

[0006] The roller support assembly is installed in the top floor of electric shovel overhaul hole, which includes π-shaped shaft seat body, bearing is arranged on the inner side of the longitudinal part of two shaft seat bodies, and the outer side of rotating shaft is fastened with bearing gland after being inserted into bearing.

[0007] The roller clamping assembly is connected with one end of steel wire rope, and the other end of steel wire rope is lapped on the rotating shaft.

[0008] As a further preferred technical scheme of the utility model, the roller clamping assembly includes left side semicircle clamp and right side semicircle clamp, the upper part of left side semicircle clamp is bent, the lower part is slotted, the upper part of right side semicircle clamp is bent, the lower part is provided with semicircle hook, the top of left side semicircle clamp and right side semicircle clamp is hinged after being fastened by shackle, the semicircle hook of right side semicircle clamp is inserted into the lower part slot of left side semicircle clamp, to form circular clamp matched with the outer periphery of roller.

[0009] Further, the shackle is composed of U-shaped buckle and half buckle screw.

[0010] Further, the U-shaped buckle and half buckle screw joint is provided with a flat pad.

[0011] The utility model discloses the beneficial effect lies in:

[0012] The utility model discloses a supporting component and a carding assembly of the carrier roller, when the electric shovel is overhauled, the supporting component of carrier roller is welded on the top bottom plate in the electric shovel overhaul hole through the shaft seat body, and the carding assembly of carrier roller is adopted to connect the carrier roller to be replaced, then one end of the steel wire rope is connected with the top unhooking of the carding assembly of carrier roller, and the other end of the steel wire rope is overlapped on the rotating shaft of the supporting component of carrier roller, and the overhaul personnel under the electric shovel overhaul hole pull the steel wire rope, and the carrier roller can be pulled out from the carrier roller frame. When installing the new carrier roller, the new carrier roller is clamped with the carding assembly of carrier roller, the steel wire rope around the rotating shaft is pulled, the new carrier roller is lifted to the corresponding height, and the personnel push the carrier roller and can be put into the carrier roller frame position. The utility model discloses the electric shovel is overhauled, and the operation is simple and easy to operate, can avoid the danger of the small space operation of the overhaul personnel, ensures safe overhaul, reduces the replacement time, and reduces the labor intensity. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the use state schematic drawing of the utility model maintenance component;

[0014] Figure 2 It is Figure 1 It is the structure schematic drawing of the carding assembly of carrier roller;

[0015] Figure 3 It is Figure 1 It is the structure schematic drawing of the supporting component of carrier roller;

[0016] Reference Signs: 1, left side half circle clamp; 2, right side half circle clamp; 3, unhooking; 4, shaft seat body; 5, bearing gland; 6, bearing; 7, rotating shaft. DETAILED DESCRIPTION

[0017] The utility model will be described in detail in connection with the drawings:

[0018] Reference Figures 1-3The utility model provides a kind of overhaul assembly of non-disassembly replacement of electric shovel middle disc roller, including roller supporting assembly and roller clamping assembly;The roller supporting assembly is installed in the top floor of electric shovel overhaul hole, and it includes the axis seat body 4 of π letter shape, bearing 6 is equipped in the inner side of the longitudinal portion of two axis seat body 4, and bearing 6 is inserted and connected rotary shaft 7 after outside fastening with bearing gland 5.The roller clamping assembly includes left side semicircle clamp 1 and right side semicircle clamp 2, left side semicircle clamp 1 upper bending, lower slot, right side semicircle clamp 2 upper bending, lower semicircular hook is equipped, left side semicircle clamp 1 and right side semicircle clamp 2 top are hinged after right side semicircle clamp 2 semicircular hook is inserted into left side semicircle clamp 1 lower groove, and the circular clamp that inner ring is matched with the outer periphery of roller is formed.The roller clamping assembly is connected with one end of steel wire rope by shackle 3, and the other end of steel wire rope is overlapped on the rotary shaft 7.

[0019] Specifically, the shackle 3 is composed of U-shaped buckle and M12*50 half buckle screw. The U-shaped buckle and half buckle screw are provided with flat pad at the joint.

[0020] When electric shovel overhaul is carried out, the roller supporting assembly is welded on the top floor of electric shovel overhaul hole by axis seat body 1;The connecting screw of roller and roller frame is removed, and the semicircular hook of right side semicircle clamp 2 lower part is hung into the hole groove of left side semicircle clamp lower part after left and right side semicircle clamps clamp roller, so that it will not be separated during pulling process, and left and right side semicircle clamps are connected into one by shackle 3;Then one end of steel wire rope is connected with the top shackle 3 of roller clamping assembly, and the other end of steel wire rope is overlapped on the rotary shaft 7 of roller supporting assembly, and the overhaul personnel standing under electric shovel overhaul hole pulls steel wire rope, and roller can be pulled out from roller frame. When new roller is installed, clamp new roller with roller clamping assembly, pull steel wire rope around rotary shaft 7, lift new roller to corresponding height, and personnel push roller to put into roller frame position.

Claims

1. A maintenance assembly for replacing the idler roller of an electric shovel without disassembly, characterized in that, The supporting assembly and the supporting assembly of the roller are included. The supporting assembly of the roller is installed on the top floor of the electric shovel repair hole, which includes a π-shaped shaft seat body (4), two shaft seat bodies (4) are provided with bearings (6) on the inner side of the longitudinal part, the bearings (6) are inserted and connected with rotating shafts (7) on the outer side, and the outer side is fastened with bearing gland (5); The supporting assembly of the roller is connected with one end of the steel wire rope, and the other end of the steel wire rope is overlapped on the rotating shaft (7).

2. A service assembly for replacing the rollers of a dipper wheel of a non-disintegrating electric shovel as set forth in claim 1, wherein The supporting assembly of the roller includes a left half-round clamp (1) and a right half-round clamp (2), the upper part of the left half-round clamp (1) is bent, and the lower part is slotted, the upper part of the right half-round clamp (2) is bent, and the lower part is provided with a half-round hook, the top of the left half-round clamp (1) and the right half-round clamp (2) is hinged through a shackle (3), the half-round hook of the right half-round clamp (2) is inserted into the lower part of the left half-round clamp (1), and the left half-round clamp (1) and the right half-round clamp (2) are combined to form a circular clamp with the outer periphery of the roller.

3. A service assembly for replacing the rollers of a dipper wheel of a non-disintegrating electric shovel as set forth in claim 2, wherein The shackle (3) is composed of a U-shaped buckle and a half-buckle screw.

4. The non-disassembly service assembly for replacing the rollers of the dipper of an electric shovel according to claim 3, wherein A flat pad is arranged at the joint of the U-shaped buckle and the half-buckle screw.

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