CN218254832U

CN218254832U - Auxiliary dismounting tool for centrifugal cargo oil pump bearing

Info

Publication number: CN218254832U
Application number: CN202221505296.9U
Authority: CN
Inventors: 袁祥林; 罗金胜
Original assignee: Cosco Shipping Energy Transportation Co ltd
Current assignee: Cosco Shipping Energy Transportation Co ltd
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2023-01-10
Anticipated expiration: 2032-06-15

Abstract

The utility model discloses a centrifugal cargo oil pump bearing, supplementary extracting tool of bearing seal relates to centrifugal cargo oil pump and repairs technical field, including self-control steel sheet, jack, short steel pipe and pump shaft, the end of pump shaft is provided with shaft coupling and bearing frame respectively, the inside of bearing frame is provided with the bearing, four holes have been seted up on the self-control steel sheet, the inside in hole has passed self-control bolt, the cover is equipped with the nut on the self-control bolt, the thickness of self-control steel sheet is 8mm, self-control bolt and hole looks adaptation, the diameter of nut is greater than the diameter in hole. The utility model discloses in, this appurtenance simple structure convenient to use conveniently realizes the dismantlement of centrifugal cargo oil pump shaft coupling, bearing and bearing frame and bearing seal, both can dismantle epaxial bearing of pump and bearing frame and bearing seal fast, need not to pull down whole pump case again and beat to shaft coupling etc. to protect the pump shaft, reduced personnel working strength again, can carry out wideling popularize.

Description

Auxiliary dismounting tool for centrifugal cargo oil pump bearing

Technical Field

The utility model relates to a technical field is repaired to centrifugal cargo oil pump, specifically is an auxiliary extracting tool of centrifugal cargo oil pump bearing.

Background

The shaft seal (mechanical seal) of the centrifugal cargo oil pump or ballast pump of the oil tanker needs to be replaced due to leakage, the bearing needs to be replaced after long service life, the general method is to detach the whole shaft (together with the impeller) and lift the shaft to the cabin workbench, and then detach the shaft coupling, the bearing and other accessories, so that the disassembly work is difficult: besides the need of manpower, the pump shaft needs to be hammered by a hammer, so that a wrench is knocked out, screw teeth of the puller are damaged, and the pump shaft is easily scratched due to uneven stress of three legs of the puller.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a supplementary extracting tool of centrifugal cargo oil pump bearing to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a supplementary extracting tool of centrifugal cargo oil pump bearing, includes self-control steel sheet, jack, short steel pipe and pump shaft, the end of pump shaft is provided with shaft coupling and bearing frame respectively, the inside of bearing frame is provided with the bearing, four holes have been seted up on the self-control steel sheet, the inside in hole has passed self-control bolt, the cover is equipped with the nut on the self-control bolt.

As a further aspect of the present invention: the thickness of the self-made steel plate is 8mm.

As a further aspect of the present invention: the self-made bolt is matched with the hole, and the diameter of the nut is larger than that of the hole.

As a further aspect of the present invention: the hole pitch of the four holes is the same as the pitch of the screw holes of the coupling, and the diameter of the short steel pipe is smaller than that of the pump shaft.

As a further aspect of the present invention: the self-made bolt is the same as the bearing cover fastening bolt on the bearing seat.

Compared with the prior art, the beneficial effects of the utility model are that: this appurtenance simple structure convenient to use conveniently realizes dismantling fast of centrifugal cargo oil pump shaft coupling, bearing and bearing frame and bearing seal fast, both can dismantle epaxial bearing of pump and bearing frame and bearing seal fast, can use manpower sparingly cost again, also need not to beat to protect the pump shaft, liberated crew intensity of labour, can carry out wideling popularize.

Drawings

FIG. 1 is a schematic structural view of a disassembly coupling of a centrifugal cargo oil pump bearing auxiliary disassembling tool.

Fig. 2 is a schematic structural diagram of a centrifugal cargo oil pump bearing auxiliary dismounting tool for dismounting a bearing seat and a bearing.

The mark in the figure is: 1. self-manufacturing a steel plate; 2. a jack; 3. self-manufacturing a bolt; 4. short steel pipes; 5. a nut; 6. A pump shaft; 7. a coupling; 8. a bearing seat; 9. and a bearing.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-2, the embodiment of the utility model provides an in, a supplementary extracting tool of centrifugal cargo oil pump bearing, including self-control steel sheet 1, jack 2, short steel pipe 4 and pump shaft 6, self-control steel sheet 1's thickness is 8mm, be less than the diameter of pump shaft 6 when short steel pipe 4's diameter is dismantled, the diameter of crossing pump shaft 6 during the installation greatly, the end of pump shaft 6 is provided with shaft coupling 7 and bearing frame 8 respectively, the inside of bearing frame 8 is provided with bearing 9, four holes have been seted up on the self-control steel sheet 1, the hole pitch in four holes is the same with shaft coupling 7 screw hole interval, the inside in hole has passed self-control bolt 3, the cover is equipped with nut 5 on the self-control bolt 3, self-control bolt 3 and hole looks adaptation, the diameter in nut 5 is greater than the diameter in hole, self-control bolt 3 is the same with bearing cap fastening bolt on the bearing frame 8.

The utility model discloses a theory of operation is: in the process of disassembling the coupling 7, peripheral accessories which influence pumping operation, such as an attached cover, a transmission shaft and the like, are firstly disassembled, one end of a self-made bolt 3 penetrates through a hole formed in a self-made steel plate 1, the other end of the self-made bolt 3 penetrates through a screw hole of the coupling 7, the self-made bolt 3 is locked through a nut 5, a short steel pipe 4 is propped against the end surface of a pump shaft 6, a jack 2 is arranged between the other end of the short steel pipe 4 and the self-made steel plate 1, the three are concentric with the pump shaft 6 as far as possible, the jack 2 is pumped while spraying a rust loosening agent at the joint of the coupling 7 and the pump shaft 6, and the coupling 7 is slowly and easily disassembled; in the process of disassembling the bearing seat 8 and the bearing 9, firstly, after the coupling 7 is disassembled and the square key of the coupling 7 is taken out through the steps, a bearing locking nut on the bearing cover is disassembled, a bearing cover fastening nut and a bolt on the bearing seat 8 are disassembled, the bearing cover is removed, two side nuts and bolts for fixing the bearing seat 8 are simultaneously disassembled, the self-made bolt 3 is screwed on two bearing cover fastening bolt holes at the opposite corners on the bearing seat 8, the self-made steel plate 1 is sleeved on the self-made bolt 3 through a hole formed in the self-made steel plate 1, the two self-made bolts 3 are pressed (equal in height) by the nuts 5, the jack 2 is arranged between the pump shaft 6 and the self-made steel plate 1 and is concentric with the pump shaft 6 as far as possible, the bearing 9 and the bearing seat 8 can be disassembled together by the jack 2, and after the bearing 9 and the bearing seat 8 are disassembled, the shaft seal can be easily taken down from the pump shaft.

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

1. The utility model provides a supplementary extracting tool of centrifugal cargo oil pump bearing, includes self-control steel sheet (1), jack (2), short steel pipe (4) and pump shaft (6), its characterized in that: the pump is characterized in that the end of the pump shaft (6) is provided with a coupling (7) and a bearing seat (8) respectively, a bearing (9) is arranged inside the bearing seat (8), four holes are formed in the self-made steel plate (1), a self-made bolt (3) penetrates through the inside of each hole, and a nut (5) is sleeved on the self-made bolt (3).

2. The centrifugal cargo oil pump bearing assist disassembly tool of claim 1, wherein: the thickness of the self-made steel plate (1) is 8mm.

3. The centrifugal cargo oil pump bearing assist disassembly tool of claim 1, wherein: the self-made bolt (3) is matched with the hole, and the diameter of the nut (5) is larger than that of the hole.

4. The centrifugal cargo oil pump bearing assist disassembly tool of claim 1, wherein: the hole pitch of the four holes is the same as the screw hole pitch of the coupling (7), and the diameter of the short steel pipe (4) is smaller than that of the pump shaft (6).

5. The centrifugal cargo oil pump bearing assist disassembly tool of claim 1, wherein: the self-made bolt (3) is the same as a bearing cover fastening bolt on the bearing seat (8).