CN115402919A - Hoisting tool for oil boiling bearing - Google Patents

Abstract

The invention relates to the technical field of large-scale bearing rotating hoisting machinery, and discloses a hoisting tool for an oil boiling bearing, which comprises a bearing tray, wherein the bearing tray comprises a U-shaped frame and a straight frame which are detachably connected, a U-shaped bearing supporting plate is arranged in the U-shaped frame, a saddle-shaped bearing supporting plate which is correspondingly matched with an opening of the U-shaped bearing supporting plate is arranged on the straight frame, the saddle-shaped bearing supporting plate and the U-shaped bearing supporting plate are matched to form a bearing supporting plate with a circular hole in the center, and hoisting holes are distributed in two opposite frames of the U-shaped frame. The bearing is flatly placed on the tray, the inner hole of the bearing corresponds to the round hole, the end faces of the inner ring and the outer ring of the bearing are in contact with the supporting plate, the phenomenon that the bearing is damaged due to the contact of the inner circumferential face and the outer circumferential face of the bearing and a roller in a traditional hoisting mode is avoided, and the bearing is safer and more reliable.

Description

Hoisting tool for oil boiling bearing

Technical Field

The invention relates to the technical field of large-scale bearing rotating hoisting, in particular to a hoisting tool for a boiled bearing, which is used for transporting and hoisting a large-scale bearing after being heated.

Background

The process method for mounting the bearing is roughly divided into 3 types: press-in assembling method, low-temperature cold-assembling method and heating assembling method. Because energy electricity, gas fuel and the like for heating the bearing are easily obtained, the bearing is installed by a heating assembly method in the most common method in the maintenance site of the large bearing, but for the heating of the large bearing, the heating point of flame heating is not uniform, so that the expansion is not uniform, the electromagnetic induction is poor in the economy of heating equipment and high in maintenance cost for regular bearing maintenance, the whole bearing can be uniformly heated by oil boiling heating, the temperature is controllable, the price is relatively economic, and the maintenance cost is low.

Traditional lifting device adopts wire rope or self-control buckle instrument to press from both sides dress bearing inner race and carries out the hoist and mount operation mostly, and its weak point that exists lies in: 1) The bearing and the roller are damaged, for the bearing with larger weight, when the bearing is hoisted by using the steel wire rope, the plurality of steel wire ropes bind the outer ring and keep the balance of the bearing, the bearing is in line contact with the steel wire ropes at a plurality of positions, and the sliding risk of the steel wire ropes exists, so that the outer ring of the bearing is damaged and the rotor is abraded; 2) Adopt self-control buckle clamping bearing inner race mode, self-control buckle is little with the bearing contact surface, and easy unbalance can produce torque to the outer lane during unbalance, leads to damaging the bearing.

Disclosure of Invention

The invention aims to provide a hoisting tool for an oil boiling bearing, which adopts the end surfaces of the inner ring and the outer ring of the bearing as the contact surfaces for hoisting rotation, avoids the damage to the bearing caused by the contact with the inner circumferential surface and the outer circumferential surface of the bearing and a roller, and has the characteristics of simple structure, convenient assembly, safety and reliability.

The invention is realized by the following technical scheme:

the utility model provides a lifting device of oil boiling bearing, includes the bearing tray, the bearing tray is including dismantling U type frame and the stile of connection, is provided with U-shaped bearing plate in the U type frame, is provided with the saddle bearing plate with the corresponding complex of opening of U-shaped bearing plate on the stile, and saddle bearing plate and U-shaped bearing plate cooperation form the bearing plate that the center has the round hole, have laid the hole for hoist on the two relative frames of U type frame.

Preferably, a plurality of groups of limiting holes are distributed on the bearing supporting plate along the radial direction of the round hole.

Further preferably, the connecting edges of the saddle-shaped bearing supporting plate and the U-shaped bearing supporting plate are in sliding connection in a matched mode through a seam allowance structure.

The end parts of two opposite frames of the U-shaped frame are provided with straight corner parts at the opening parts, and the straight frames are detachably connected with the U-shaped frame through the straight corner parts.

And a handle is arranged on the U-shaped frame.

According to the invention, the combined tray is adopted, the round hole structure corresponding to the installation shaft is formed in the center of the tray, the bearing is flatly placed on the tray, the inner hole of the bearing corresponds to the round hole, the end surfaces of the inner ring and the outer ring of the bearing are in contact with the supporting plate, so that the bearing is prevented from being damaged due to the contact with the inner circumferential surface and the outer circumferential surface of the bearing and rollers in the traditional hoisting mode, the bearing heated uniformly by oil boiling is hoisted to the preset position of the installation shaft by hoisting the tray, and then the bearing tray is detached and separated.

Preferably, through use the round hole to lay multiunit radial spacing hole as the centre of a circle on the bearing layer board that U-shaped bearing layer board and saddle bearing layer board are constituteed, cooperation spacing pin can realize promptly that it is spacing to the bearing of different diameter sizes, avoids the hoist and mount transfer in-process to take place the displacement, guarantees that the bearing hole corresponds with bearing layer board center round hole concentric basically, and lifting device and axle contact when avoiding the bearing to go into the axle.

The invention has simple structure and simple and convenient operation, and is safer and more reliable compared with the traditional steel wire rope and buckle hoisting tool.

Drawings

FIG. 1 is a schematic diagram of an embodiment;

FIG. 2 is a schematic view of a sliding structure of the bearing plate of FIG. 1;

FIG. 3 is a schematic view of the structure of a limit pin;

FIG. 4 is a schematic structural view of a hoisting tool with a largest bearing put in;

fig. 5 is a schematic hoisting diagram of an embodiment of the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

See FIGS. 1-5

Example one

The utility model provides a lifting device of oil boiling bearing, includes the bearing tray, the bearing tray is including dismantling U type frame 1 and the right circular frame 4 of connecting, 1 is provided with U-shaped bearing layer board 6 in the U type frame, is provided with on the right circular frame 4 with the corresponding complex saddle bearing layer board 7 of opening of U-shaped bearing layer board 6, saddle bearing layer board 7 forms the bearing layer board that the center has round hole 8 with the cooperation of U-shaped bearing layer board 6, has laid hoisting hole 10 on two relative frames of U type frame 1, the tip of two relative frames of U type frame 1 all is provided with straight horn portion 12 at the opening part, straight frame 4 through straight horn portion 12 with U type frame 1 can dismantle the connection.

Specifically, in this practical example, the U-shaped frame 1 is formed by inwards welding 3 angle steels, wherein lifting holes 10 are formed in the angle steels on two opposite sides, and vertical angle steels are welded at the end portions of the two opposite angle steels on the opening side of the U-shaped frame 1 to form a straight angle portion 12 of the hangers structure, the straight frame 4 serves as a movable supporting frame, a bolt fixing hole corresponding to the angle steel processing of the straight angle portion 12 is formed, and the detachable connection is realized through the connecting bolt 3. The embodiment only exemplifies a connection mode, and the folding hanging lugs can be welded at two ends of the straight frame 4 to be detachably connected with two side angle steels of the U-shaped frame 1 through bolts or other locking mechanisms.

The U-shaped frame 1 is internally welded with a U-shaped bearing plate 6, the straight frame 4 is welded with a saddle-shaped bearing plate 7 corresponding to the U-shaped bearing plate 6 to form a T-shaped structure, the inner side of the opening of the U-shaped bearing plate 6 and two side edges of the saddle-shaped bearing plate 7 are provided with corresponding matched stepped spigot matching structures, so that the saddle-shaped bearing plate 7 can slide into the U-shaped bearing plate 6 along the stepped spigot, meanwhile, the U-shaped bearing plate 6 supports the saddle-shaped bearing plate 7, and the saddle-shaped bearing plate 7 and the upper surface of the U-shaped bearing plate 6 are positioned on the same plane. Saddle bearing supporting plate 7 forms bearing supporting plate behind 6 with U-shaped bearing supporting plate to in the cooperation of bearing supporting plate center form round hole 8, the diameter of round hole 8 is greater than the internal diameter of bearing, so that pack into the main shaft.

When the bearing bracket is used, before being heated, the bearing 5 is hung on the U-shaped bearing supporting plate 6 and slides into the saddle-shaped bearing supporting plate 7, the straight frame 4 is fixedly connected with the U-shaped frame 1, the U-shaped frame 1 and the straight frame 4 limit the periphery of the bearing 5, and the bearing 5 can be directly hung and placed in the tray frame as shown in figure 4. Then, hoisting the bearing 5 by adopting the steel wire ropes with equal length and moving the bearing into a heating oil tank, quickly transferring and hoisting the bearing into the main shaft after oil is boiled and heated, and removing the straight frame 4 after the bearing is loaded into the main shaft, thus the hoisting tool can be taken down.

The handle 11 is arranged on the U-shaped frame 1, so that manual stabilization and separation from the main shaft in the hoisting and transferring process are facilitated.

Example two

The difference between the present embodiment and the first embodiment is: a plurality of groups of limiting holes 9 are radially distributed on the bearing supporting plate along the round hole 8, limiting pins 2 are inserted into the limiting holes 9, the bearings with different sizes are limited in the bearing supporting plate, and the distribution diameter of the limiting holes 9 is designed according to the outer diameter of the bearing, the diameter of the pin and the allowance. Referring to fig. 3, the limit pin 2 comprises a smaller diameter part 2-1 at the lower part and a larger diameter part 2-1 at the upper part, two sides of the upper end of the larger diameter part are processed with plane structures 2-3, and through holes 2-4 are arranged on the plane structures 2-3, so that the limit pin 2 can be conveniently clamped by a tool or hooked by a thin hook in a hot state, and meanwhile, the limit pin can be conveniently stored by connecting the through holes of the limit pin 2 in series.

Referring to fig. 1, before the bearing 5 is not heated, the operations are performed in the order of a → b → c → d → e in fig. 1, a: according to the outer diameter of the bearing 5, 3 limiting pins 2 are inserted in the direction of the bearing supporting plate corresponding to the three frames of the U-shaped frame 1; b: hanging or sliding the bearing 5 into a U-shaped tray of the U-shaped frame 1; c: a saddle-shaped bearing supporting plate 7 and a straight frame 4 are arranged from one side of the opening of the U-shaped frame 1; d: 24 limiting pins 2 are inserted into the saddle-shaped bearing supporting plate 7 to limit the bearing 5 on the bearing tray; e: the two ends of the straight frame 4 are fixedly connected with the U-shaped frame 1 through bolts, and the bearing 5 can be stably limited in the bearing tray.

After the bearing 5 is placed into a bearing tray and limited, bow-shaped bolts are adopted to be buckled and penetrate through the hoisting holes 10 on two sides of the U-shaped frame 1, 4 equal-length steel wire ropes are used for hoisting the hoisting tool into the heating oil tank, after the heating is uniform, the hoisting tool is quickly transferred and hoisted into the main shaft, after the main shaft is installed, the bolts at two ends of the straight frame 4 are removed, the straight frame 4 and the U-shaped frame 1 are separated, the saddle-shaped bearing plate 7 slides out of the U-shaped bearing plate 6, and then the hoisting tool can be taken down.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (5)

1. The utility model provides a lifting device of oil boil bearing which characterized in that: the bearing pallet comprises a bearing pallet body, the bearing pallet body comprises a U-shaped framework and a straight frame, the U-shaped framework and the straight frame are detachably connected, a U-shaped bearing pallet plate is arranged in the U-shaped framework, a saddle-shaped bearing pallet plate matched with the U-shaped bearing pallet plate correspondingly in an opening is arranged on the straight frame, the saddle-shaped bearing pallet plate is matched with the U-shaped bearing pallet plate to form a bearing pallet plate with a round hole in the center, and hoisting holes are distributed in two opposite frames of the U-shaped framework.

2. The hoisting tool of oil boiled bearing of claim 1, characterized in that: and a plurality of groups of limiting holes are distributed on the bearing supporting plate along the radial direction of the round hole.

3. The hoisting tool of the oil boiling bearing according to claim 1, characterized in that: the saddle-shaped bearing supporting plate is connected with the U-shaped bearing supporting plate through a matched sliding connection edge of a spigot structure.

4. The hoisting tool of the oil boiling bearing according to claim 1, characterized in that: the end parts of two opposite frames of the U-shaped frame are provided with straight corner parts at the opening parts, and the straight frames are detachably connected with the U-shaped frame through the straight corner parts.

5. The hoisting tool of the oil boiling bearing according to claim 1, characterized in that: and a handle is arranged on the U-shaped frame.

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