CN217155850U

CN217155850U - Experimental frock of engine afterburning spray lance flow test

Info

Publication number: CN217155850U
Application number: CN202221003966.7U
Authority: CN
Inventors: 何园园; 杨海诚; 李国银; 朱凯; 王强
Original assignee: Establishment Of Aviation Technology Guiyang Co ltd
Current assignee: Establishment Of Aviation Technology Guiyang Co ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2022-08-09
Anticipated expiration: 2032-04-28

Abstract

The utility model discloses a test tool for a flow test of an engine boosting spray rod, which comprises a bottom plate, wherein supporting legs are uniformly distributed at four corners of the bottom surface of the bottom plate; the top surface of the bottom plate is provided with a spray rod positioning and clamping assembly; sliding grooves are symmetrically formed in the two sides of the spray rod positioning and clamping assembly on the bottom plate; a plurality of spray hole butt joint assemblies are arranged in the sliding grooves in a sliding mode; a locking component is arranged in the sliding groove. The utility model discloses an experimental frock can carry out the flow test to the spray lance of multiple size and specification, and adaptability is high, the effectual test cost that has reduced.

Description

Experimental frock of engine afterburning spray lance flow test

Technical Field

The utility model relates to a spray lance flow test technical field especially relates to an engine afterburning spray lance flow test's experimental frock.

Background

The spray bar is one of the important parts of an aircraft engine. After the spray rod is machined, a flow test needs to be carried out on the spray rod. In the flow test of the spray rod, after the spray rod is clamped and fixed through a test tool, a nozzle on the spray rod is just aligned with an oil collecting pipe. Because oil receiving pipe position is fixed, can't satisfy the experimental demand of other part numbers or other types of spray lances, lead to this frock to become one set of special frock, need make dedicated flow test frock to other not unidimensional spray lances, not only increased experimental cost, moreover because the processing cycle of frock still can lead to the hysteresis of whole project.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defect or not enough among the prior art, it is expected to provide one kind can carry out the flow test to the spray lance of multiple dimensions, and the adaptability is high, the effectual experimental cost's that has reduced engine thrust augmentation spray lance flow test's experimental frock.

The utility model provides a test tool for engine stress application spray rod flow test, which comprises a bottom plate, wherein supporting legs are uniformly distributed at four corners of the bottom surface of the bottom plate; the top surface of the bottom plate is provided with a spray rod positioning and clamping assembly for positioning and clamping a spray rod; sliding grooves are symmetrically formed in the bottom plate and located on two sides of the spray rod positioning and clamping assembly, and the sliding grooves are arranged in the direction parallel to the axis of the spray rod; a plurality of spray hole butt-joint assemblies are arranged in the sliding grooves in a sliding mode; and a locking assembly is arranged in the sliding groove and used for locking and fixing the spray hole butt joint assembly after the spray hole butt joint assembly is aligned with the spray hole.

Furthermore, the orifice butt joint assembly comprises an L-shaped oil collecting pipe and a T-shaped sliding block which is embedded into the sliding groove in a sliding mode, a through hole is formed in the T-shaped sliding block in the vertical direction, the vertical section of the oil collecting pipe penetrates through the through hole and is fixedly sleeved with the T-shaped sliding block, the horizontal section of the oil collecting pipe extends to the spray rod, and a first sealing ring is arranged at one end, close to the spray rod, of the oil collecting pipe.

Furthermore, locking Assembly includes the locking clamp plate, the locking clamp plate set up in the spout is internal to be located one side that spray lance location clamping subassembly was kept away from to the orifice butt joint subassembly, one side equipartition of bottom plate have a plurality of with the first screw hole that the spout is linked together, the equal threaded connection of first screw hole has the locking bolt, be provided with on the locking clamp plate with the hole groove of first screw hole one-to-one, the locking bolt passes first screw hole and stretches into the hole inslot, the spout internal is located the fixed backup pad that is provided with in below of locking clamp plate.

Further, spray lance location clamping subassembly including fixed set up in the locating pin of bottom plate top surface, the top of locating pin is provided with the draw-in groove, the top surface of bottom plate is located the fixed support that is provided with of the both ends symmetry of spray lance, be provided with the second screw hole, one along the axis of spray lance on the support second screw hole female connection has the spray lance adapter, be provided with the second sealing washer in the spray lance adapter, another second screw hole female connection has the clamping bolt, the one end that the clamping bolt is close to the spray lance is provided with the constant head tank, the constant head tank internal fixation is provided with the rubber packing piece.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an experimental frock is provided with spray lance location clamping subassembly, orifice butt joint subassembly and locking Assembly, can carry out the clamping to the spray lance of multiple size specification through spray lance location clamping subassembly and fix, and orifice butt joint subassembly slides and sets up in the spout of bottom plate both sides, according to the position of the orifice on the spray lance, removes each group's orifice butt joint subassembly and makes it aim at with the orifice one by one, then it is fixed with orifice butt joint subassembly locking through locking Assembly, realizes the inseparable butt joint of orifice. The application of the test tool can be used for carrying out flow test on spray rods with various dimensions, the adaptability is high, and the test cost is effectively reduced.

It should be understood that what is described in this summary section is not intended to limit key or critical features of embodiments of the invention, nor is it intended to limit the scope of the invention. Other features of the present invention will become apparent from the following description.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

FIG. 1 is a schematic structural diagram of a test fixture;

FIG. 2 is a schematic top view of the test fixture;

FIG. 3 is a schematic top view of the base plate;

FIG. 4 is a schematic structural view of a nozzle docking assembly;

fig. 5 is a schematic structural view of the locking pressure plate.

Reference numbers in the figures: 11. a spray rod; 12. a base plate; 13. the spray rod positioning and clamping assembly; 14. a nozzle orifice docking assembly; 15. a locking assembly;

21. supporting legs; 22. a chute; 23. a first screw hole; 24. a support plate;

31. positioning pins; 32. a support; 33. a spray rod adapter; 34. clamping the bolt;

41. collecting an oil pipe; 42. a T-shaped slider; 43. a first seal ring;

51. locking the pressing plate; 52. locking the bolt; 53. and (4) a hole groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1 to 5, an embodiment of the present invention provides a testing tool for a flow test of an engine boosting spray rod, including a bottom plate 12, wherein supporting legs 21 are uniformly distributed at four corners of the bottom surface of the bottom plate 12; a spray rod positioning and clamping assembly 13 is arranged on the top surface of the bottom plate 12 and used for positioning and clamping the spray rod 11; sliding grooves 22 are symmetrically arranged on the bottom plate 12 at two sides of the spray rod positioning and clamping assembly 13, and the sliding grooves 22 are arranged along the direction parallel to the axis of the spray rod 11; a plurality of spray hole butt joint assemblies 14 are arranged in the sliding groove 22 in a sliding mode; and a locking assembly 15 is arranged in the sliding groove 22 and used for locking and fixing the spray hole butting assembly 14 after aligning the spray holes.

In this embodiment, when a flow test of the spray rod is performed, the spray rod 11 is clamped and fixed by the spray rod positioning and clamping assembly 13, and after the spray rod 11 is fixed, the spray holes are distributed on two sides of the spray rod 11. The orifice docking assemblies 14 are then moved along the slide slots 22, respectively, into alignment with the orifices. And then the spray hole butt joint component 14 is locked and fixed through the locking component 15, so that the spray holes are tightly butted. The jet hole butt joint assembly 14 is connected to a tester through a hose, fuel beams jetted from each jet hole are collected by each group of jet hole butt joint assemblies 14 respectively and enter the tester through the hose, and flow test data of each jet hole are obtained.

The application of the test tool is that the flow test can be carried out on the spray rod 11 with multiple sizes through the movable spray hole butt joint component 14, the adaptability is high, and the test cost is effectively reduced.

In a preferred embodiment, as shown in fig. 1 and 4, the nozzle hole docking assembly 14 includes an L-shaped oil collecting pipe 41 and a T-shaped slider 42 slidably inserted into the sliding groove 22, a through hole is formed in the T-shaped slider 42 along a vertical direction, a vertical section of the oil collecting pipe 41 passes through the through hole and is fixedly sleeved with the T-shaped slider 42, a horizontal section of the oil collecting pipe 41 extends to the spray bar 11, and a first sealing ring 43 is disposed at one end of the oil collecting pipe 41 close to the spray bar 11.

In the embodiment, the oil receiving pipe 41 is used for butting the spray hole, a horizontal section of the oil receiving pipe 41 is in sealing butt joint with the spray hole through a first sealing ring 43, and a vertical section passes through the T-shaped sliding block 42 and is communicated to the tester through a hose. The oil collecting pipe 41 is connected with the sliding groove 22 in a sliding mode through the T-shaped sliding block 42, the position of the oil collecting pipe 41 can be adjusted according to the positions of the spraying holes, the oil collecting pipe 41 can be matched with the spraying holes, and the test tool is made to have universality.

In a preferred embodiment, as shown in fig. 1 to 5, the locking assembly 15 includes a locking pressing plate 51, the locking pressing plate 51 is disposed in the sliding slot 22 and located on one side of the nozzle hole alignment assembly 14 away from the nozzle rod positioning and clamping assembly 13, a plurality of first threaded holes 23 communicated with the sliding slot 22 are uniformly distributed on one side of the bottom plate 12, the first threaded holes 23 are all in threaded connection with locking bolts 52, hole slots 53 corresponding to the first threaded holes 23 one to one are formed in the locking pressing plate 51, the locking bolts 52 penetrate through the first threaded holes 23 and extend into the hole slots 53, and a supporting plate 24 is fixedly disposed in the sliding slot 22 and located below the locking pressing plate 51.

In this embodiment, the nozzle hole docking assembly 14 aligns with the nozzle hole, the locking bolts 52 are tightened one by one, and the locking bolts 52 push the locking pressing plate 51 to clamp and fix the nozzle hole docking assembly 14 in the sliding groove 22, so that the oil collecting pipe 41 is tightly abutted to the nozzle hole.

In a preferred embodiment, as shown in fig. 1 and fig. 2, the spray rod positioning and clamping assembly 13 includes a positioning pin 31 fixedly disposed on the top surface of the bottom plate 12, a clamping groove is disposed at the top of the positioning pin 31, supports 32 are symmetrically and fixedly disposed on the top surface of the bottom plate 12 at two ends of the spray rod 11, a second threaded hole is disposed on the support 32 along the axis of the spray rod 11, a spray rod adapter 33 is connected to the second threaded hole through internal threads, a second sealing ring is disposed in the spray rod adapter 33, a clamping bolt 34 is connected to the other second threaded hole through internal threads, a positioning groove is disposed at one end of the clamping bolt 34 close to the spray rod 11, and a rubber gasket is fixedly disposed in the positioning groove.

In the present embodiment, the spray bar 11 is symmetrically provided with mounting profiles on both sides of its middle portion. When the spray rod 11 is positioned and clamped, the middle part of the spray rod 11 is embedded into the clamping groove at the top of the positioning pin 31. Through the joint cooperation of draw-in groove and installation profile, make spray lance 11 unable rotation, fix a position spray lance 11. Then respectively screwing the spray rod adapter 33 and the clamping bolt 34, so that one end of the spray rod 11 is embedded into the spray rod adapter 33 and is in sealed butt joint; the other end is embedded into the positioning groove to firmly support the rubber gasket. The spray rod 11 is accurately positioned and stably fixed. The spray rod adapter 33 is connected to a tester through a hose, and fuel output by the tester enters the spray rod 11 through the spray rod adapter 33 and is sprayed out through the spray holes to perform a flow test.

In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present application, the description of the terms "one embodiment," "some embodiments," etc. means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A test tool for a flow test of an engine boosting spray rod is characterized by comprising a bottom plate, wherein supporting legs are uniformly distributed at four corners of the bottom surface of the bottom plate; the top surface of the bottom plate is provided with a spray rod positioning and clamping assembly for positioning and clamping a spray rod; sliding grooves are symmetrically formed in the bottom plate and located on two sides of the spray rod positioning and clamping assembly, and the sliding grooves are arranged in the direction parallel to the axis of the spray rod; a plurality of spray hole butt-joint assemblies are arranged in the sliding grooves in a sliding mode; and a locking assembly is arranged in the sliding groove and used for locking and fixing the spray hole butt joint assembly after the spray hole butt joint assembly is aligned with the spray hole.

2. The test tool for the flow test of the engine boosting spray rod according to claim 1, wherein the spray hole butt-joint assembly comprises an L-shaped oil collecting pipe and a T-shaped sliding block which is embedded in the sliding groove in a sliding mode, a through hole is formed in the T-shaped sliding block in the vertical direction, the vertical section of the oil collecting pipe penetrates through the through hole and is fixedly sleeved with the T-shaped sliding block, the horizontal section of the oil collecting pipe extends to the spray rod, and a first sealing ring is arranged at one end, close to the spray rod, of the oil collecting pipe.

3. The test tool for the engine boosting spray rod flow test is characterized in that the locking assembly comprises a locking pressing plate, the locking pressing plate is arranged in the sliding groove and located on one side, away from the spray rod positioning and clamping assembly, of the spray hole butt joint assembly, a plurality of first threaded holes communicated with the sliding groove are evenly distributed in one side of the bottom plate, locking bolts are in threaded connection with the first threaded holes, hole grooves in one-to-one correspondence with the first threaded holes are formed in the locking pressing plate, the locking bolts penetrate through the first threaded holes and extend into the hole grooves, and a supporting plate is fixedly arranged below the locking pressing plate in the sliding groove.

4. The test tool for the engine boosting spray rod flow test is characterized in that the spray rod positioning and clamping assembly comprises a positioning pin fixedly arranged on the top surface of the bottom plate, a clamping groove is formed in the top of the positioning pin, supports are symmetrically and fixedly arranged on the top surface of the bottom plate and located at two ends of the spray rod, second threaded holes are formed in the supports along the axis of the spray rod, one of the second threaded holes is in threaded connection with a spray rod adapter, a second sealing ring is arranged in the spray rod adapter, the other second threaded hole is in threaded connection with a clamping bolt, a positioning groove is formed in one end, close to the spray rod, of the clamping bolt, and a rubber gasket is fixedly arranged in the positioning groove.