CN102962803B - Guidance device for assembly of engine graphite sealing piece and use method thereof - Google Patents

Abstract

The invention provides a guidance device for the assembly of an engine graphite sealing piece and a use method thereof, belonging to the technical field of an aero-engine. The guidance device for the assembly of the engine graphite sealing piece comprises a centering guidance body, wherein a tightening cap is arranged outside a central spindle; the central spindle is connected with a fixing nut above the tightening cap through the tightening cap; and a guidance rope is connected with the outer end of the central spindle. The use method comprises the following steps: installing the centering guidance body into an assembling component from the lower side of the assembling component, installing the tightening cap onto the central spindle of the centering guidance body above the assembling component, and tightly screwing the fixing nut; assembling the completely-assembled assembling component with the guidance device onto an engine main body through a lifting appliance, wherein the guidance face of the centering guidance body is enabled to contact with an internal hole in the engine main body for the entrance of a guidance process at first during the assembling process, and finally, a graphite runway and graphite sealing devices are assembled in place; and removing the guidance device, wherein the guidance rope is pulled at first, the fixing nut is loosened, the centering guidance body is sent out from the lower side of the engine main body through the guidance rope, and then the fixing nut and the tightening cap are taken out.

Description

A kind of engine graphite seal part is guiding device and using method thereof for assembling

Technical field

The invention belongs to aero engine technology field, particularly relate to a kind of assembling of engine graphite seal part guiding device and using method thereof; Mainly the in the situation that of blind mounted engine graphite seal part, use, be applicable to engine final assembly field.

Background technology

Aero-engine, conventionally will be used and lead tool device during with the load module of graphite seal device at blind dress.Conventionally under state, will be fixed on engine main body leading tool device, the engine that need to repeatedly overturn when installing and decomposing is to reach assembling and to dismantle the object of leading tool device; Along with the increase of upset number of times, bring very large impact can to the bearing of engine, need to reduce as much as possible the upset number of times of engine.

Summary of the invention

The problem existing for prior art, the invention provides a kind of upset number of times that reduces engine and uses guiding device and using method thereof, the engine graphite seal part of the blind packing quality of assurance graphite seal device assembles.

To achieve these goals, the present invention adopts following technical scheme, and a kind of engine graphite seal part assembling guiding device comprises that upper end has the centering guide body that mandrel, lower end have guide surface; At described mandrel, be outside equipped with the friction top with through hole, mandrel is threaded connection by the through hole of friction top and the hold-down nut of friction top top, in the outer end of described mandrel, is connected with strop.

In centering guide body below described friction top, be provided with centering stop surface.

The using method of guiding device for described engine graphite seal part assembling, comprises the steps:

Step 1: pack centering guide body into load module from the below of load module, above load module, friction top is being installed on the mandrel of centering guide body, and is tightening hold-down nut;

Step 2: the load module with guiding device assembling is assembled on engine main body by suspender, in assembling process, first make the to feel relieved guide surface of guide body and the endoporus of engine main body contacts, enter bootup process, finally make the graphite runway of engine main body and the graphite seal device of load module be seated;

Step 3: dismounting guiding device, first hold strop, unclamp hold-down nut, by strop, centering guide body is sent from the below of engine main body; Then from the top of load module, take out hold-down nut and friction top.

Beneficial effect of the present invention:

The invention solves with the blind dress problem of similar structures part in engine final assembly process such as graphite seal devices, the guiding device of the application of the invention, design and the processing charges of leading tool device have been reduced, guaranteed the assembly quality of graphite seal device, reduced the number of times of upset engine, the labour intensity that has reduced operator, has shortened installation time.

Accompanying drawing explanation

Fig. 1 is the structural representation of guiding device for engine graphite seal part assembling of the present invention;

Fig. 2 is the structural representation with the engine main body of graphite runway;

Fig. 3 is the structural representation with the load module of graphite seal device;

Fig. 4 is the structural representation that is equipped with the load module of guiding device;

Fig. 5 is the structural representation that is equipped with the engine main body of the load module with guiding device;

In figure, 1-mandrel, 2-strop, 3-hold-down nut, 4-through hole, 5-friction top, 6-centering stop surface, 7-centering guide body, 8-guide surface, 9-graphite runway, 10-engine main body, 11-load module, 12-graphite seal device.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.

As shown in Figure 2, on engine main body 10 with graphite runway 9; As shown in Figure 3, in load module 11 with graphite seal device 12.By guiding device of the present invention, will guarantee that graphite runway 9 and graphite seal device 12 are finally seated, assembling process is blind dress, and assembly direction is for straight down.

As shown in Figure 1, a kind of engine graphite seal part assembling guiding device, comprises that upper end has the centering guide body 7 that mandrel 1, lower end have guide surface 8; At described mandrel 1, be outside equipped with the friction top 5 with through hole 4, mandrel 1 is threaded connection with the hold-down nut 3 of friction top 5 tops by the through hole 4 of friction top 5; In the outer end of described mandrel 1, be connected with strop 2, in the centering guide body 7 below described friction top 5, be provided with centering stop surface 6.

The using method of guiding device for described engine graphite seal part assembling, comprises the steps:

Step 1: pack centering guide body 7 into load module 11 from the below of load module 11, and contact with load module 11 by centering stop surface 6; Above load module 11, friction top 5 is being installed on the mandrel 1 of centering guide body 7, and is tightening hold-down nut 3, as shown in Figure 4;

Step 2: the load module 11 with guiding device assembling is assembled on engine main body 10 by suspender, in assembling process, first the guide surface 8 of guide body 7 of making to feel relieved contacts with the endoporus of engine main body 10, enter bootup process, finally make the graphite runway 9 of engine main body 10 and the graphite seal device 12 of load module 11 be seated;

Step 3: dismounting guiding device, first hold strop 2, unclamp hold-down nut 3, by strop 2, slowly centering guide body 7 is sent from the below of engine main body 10; Then from the top of load module 11, take out hold-down nut 3 and friction top 5.

Finally complete whole assembling bootup process, whole assembling process is not overturn to engine main body 10, thereby has reached minimizing engine upset number of times, guarantees the object of Engine Assembling Quality and production efficiency.

Claims (1)

1. a using method for guiding device for the assembling of engine graphite seal part, is characterized in that, comprises the steps:

Step 1: pack centering guide body into load module from the below of load module, above load module, friction top is being installed on the mandrel of centering guide body, and is tightening hold-down nut;

Step 2: the load module with guiding device assembling is assembled on engine main body by suspender, in assembling process, first make the to feel relieved guide surface of guide body and the endoporus of engine main body contacts, enter bootup process, finally make the graphite runway of engine main body and the graphite seal device of load module be seated;

Step 3: dismounting guiding device, first hold strop, unclamp hold-down nut, by strop, centering guide body is sent from the below of engine main body; Then from the top of load module, take out hold-down nut and friction top.