CN202006452U

CN202006452U - Tool for disassembly and assembly of collar nut of fuel oil spraying pipe of locomotive engine

Info

Publication number: CN202006452U
Application number: CN201120128420XU
Authority: CN
Inventors: 温沛森; 王洪祥; 杨敏
Original assignee: Shanghai Baosteel Equipment Maintenance Co Ltd
Current assignee: Shanghai Baosteel Equipment Maintenance Co Ltd
Priority date: 2011-04-27
Filing date: 2011-04-27
Publication date: 2011-10-12
Anticipated expiration: 2021-04-27

Abstract

The utility model discloses a tool for disassembly and assembly of a collar nut of a fuel oil spraying pipe of a locomotive engine, and the tool comprises a sleeve and an end cover, wherein a cylinder body of the sleeve is provided with a long strip-shaped gap from the upper part to the bottom end along the length direction, an inner ring of the sleeve is circular, a square tenon notch is formed at the top end of the sleeve, the end cover is arranged at the bottom end of the sleeve, a U-shaped opening is formed on the end cover and the U-shaped opening of the end cover is consistent with the direction of the long strip-shaped gap of the cylinder body of the sleeve. By utilizing the tool, disassembly and assembly operations of the collar nut of the oil spraying pipe can be conveniently implemented, so that the defects in the way of adopting a traditional open-end wrench for disassembly and assembly can be overcome, and the efficiency of overhaul operation and the overhaul quality are improved.

Description

The dismantling device of locomotive engine fuel injection pipe joint nut

Technical field

The utility model relates to a kind of dismantling device of locomotive engine fuel injection pipe joint nut.

Background technology

Usually the fuel injection pipe of locomotive engine fuel oil supply system is fixed by collar nut; the collar nut top is provided with spray bar; need the dismounting collar nut during locomotive engine upkeep operation; the dismounting operation of common collar nut is adopted common open-end wrench to add extension spray lance and is implemented, and this dismounting mode often is subjected to the restriction of collar nut present position.Because locomotive engine considers that in design the compactness of structure and the needs of processing technology often mutually combine parts such as fuel injection pipe, fuel injection device, rocker arm assembly, air-valve assembly in cylinder head, what center on the cylinder head outside simultaneously is cooling water pipe, blast pipe and booster etc.When the fuel injection pipe is carried out the dismounting operation, the opening wrench can't directly insert, needing the opening wrench is tilted could be to opening plate about the spray bar collar nut after about 45 °, the contact position of spanner and collar nut is inaccurate when pulling, cause the collar nut outer rim to damage easily, cause plate to change difficulty, the nut outer rim is damaged the easy slippage of back spanner simultaneously, causes personal injury; And, easily cause fuel oil spray nozzle oil leakage fault because space narrow and small operation split shed wrench can't accurately reach the torque value of regulation.The efficient and the repair quality of upkeep operation have been reduced.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of dismantling device of locomotive engine fuel injection pipe joint nut, this instrument of utilization can conveniently be implemented the dismounting operation of spray bar collar nut, avoid adopting the defective of traditional opening wrench dismounting, improved the efficient and the repair quality of upkeep operation.

For solving the problems of the technologies described above, the dismantling device of the utility model locomotive engine fuel injection pipe joint nut comprises sleeve and end cap, described sleeve cylindrical shell has rectangular breach along its length to the bottom from top, described sleeve inner ring is circular, the side of being provided with, described sleeve top tenon recess, described end cap is located at described sleeve bottom and is had the U-shaped opening, and the U-shaped opening of described end cap is consistent with the rectangular breach direction of described sleeve cylindrical shell.

Because the dismantling device of the utility model locomotive engine fuel injection pipe joint nut has adopted technique scheme, be that this instrument comprises sleeve and end cap, the sleeve cylindrical shell has rectangular breach along its length to the bottom from top, the sleeve inner ring is circular, the side of being provided with, sleeve top tenon recess, end cap is located at the sleeve bottom and is had the U-shaped opening, and the U-shaped opening of end cap is consistent with the rectangular breach direction of sleeve cylindrical shell.This instrument of utilization can conveniently be implemented the dismounting operation of spray bar collar nut, has avoided adopting the defective of traditional opening wrench dismounting, has improved the efficient and the repair quality of upkeep operation.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and embodiments:

Fig. 1 is the front view of this locomotive engine fuel injection pipe joint nut dismantling device,

Fig. 2 be the A-A of Fig. 1 to view,

Fig. 3 is the right view of Fig. 1,

Fig. 4 is the left view of Fig. 1,

Fig. 5 is the stereogram of this locomotive engine fuel injection pipe joint nut dismantling device.

The specific embodiment

Extremely shown in Figure 5 as Fig. 1, the dismantling device of the utility model locomotive engine fuel injection pipe joint nut comprises sleeve 1 and end cap 4, described sleeve 1 cylindrical shell has rectangular breach 2 along its length to the bottom from top, described sleeve 1 inner ring is circular, the side of being provided with, described sleeve 1 top tenon recess 3, described end cap 4 is located at described sleeve 1 bottom and is had U-shaped opening 41, and the U-shaped opening 41 of described end cap 4 is consistent with rectangular breach 2 directions of described sleeve 1 cylindrical shell.

This instrument can directly insert the collar nut outer rim with the sleeve bottom when using, collar nut embeds in the U-shaped opening of end cap, keep the sleeve cylindrical shell vertical with the collar nut end face, ratchet spanner or the torque spanner selecting to be fit to cooperate with the square tenon recess on sleeve top, firmly rotating ratchet spanner or torque spanner can be implemented the dismounting of butt joint nut.The miscellaneous part of collar nut periphery has been avoided in the direct insertion of sleeve, avoided the obstacle of miscellaneous part and impaired, and the firmly position when pulling collar nut is in normal condition, pull process butt joint nut outer rim and can not cause damage, improved the safe application performance of operating efficiency and instrument, the rectangular breach of sleeve and cylindrical shell constitute the C tee section, this rectangular breach can hold the spray bar of jointing nut, avoided interference to conventional spanner, and be convenient to exerting oneself of ratchet spanner or torque spanner switching, can accurately reach required torque value, guarantee the reliability that the spray bar joint connects.Greatly made things convenient for the dismounting operation of collar nut.

Claims

1. the dismantling device of a locomotive engine fuel injection pipe joint nut, it is characterized in that: this instrument comprises sleeve and end cap, described sleeve cylindrical shell has rectangular breach along its length to the bottom from top, described sleeve inner ring is circular, the side of being provided with, described sleeve top tenon recess, described end cap is located at described sleeve bottom and is had the U-shaped opening, and the U-shaped opening of described end cap is consistent with the rectangular breach direction of described sleeve cylindrical shell.