Spray rod sealing test tool

Abstract

The utility model discloses a spray rod sealing test tool. The spray rod sealing test tool comprises a base; the plugging assembly is arranged at the top of the base; the clamping assembly is arranged above the plugging assembly; and the downward pressing assembly is arranged above the clamping assembly and fixedly connected with the base. The sealing test tool provided by the utility model is convenient to operate, high in test efficiency, good in plugging effect and accurate in detection, and ensures the processing quality of the spray rod.

Description

TECHNICAL FIELD

[0001] The utility model relates to a part detection technical field especially relates to a spray bar sealing test frock. BACKGROUND

[0002] As Figure 1 And Figure 2 The spray bar shown in the figure is an important component of an aeroengine, which needs to be detected after being processed and formed, and can be put into subsequent use after passing the detection. The top end of the spray bar is the mounting end, the bottom end is the nozzle end, the mounting joint is formed between the nozzle end and the spray bar, the nozzle end is provided with a spray hole, and a ring of convex rings is arranged on the nozzle end. After the spray bar is processed and formed, the sealing property of the mounting joint needs to be detected, and therefore a spray bar sealing test frock is urgently needed to complete the sealing test of the spray bar. SUMMARY

[0003] In view of the above defects or deficiencies in the prior art, it is desirable to provide a spray bar sealing test frock which is convenient to operate, high in test efficiency, good in plugging effect, accurate in detection and ensures the processing quality of the spray bar.

[0004] The utility model provides a kind of spray bar sealing test frock, comprising:

[0005] Base;

[0006] Plugging assembly, is set to the top of the base, for plugging the spray hole;

[0007] Clamping assembly, is set to the top of the plugging assembly, for being clamped by the convex ring on the nozzle end;

[0008] Down-pressing assembly, is set to the top of the clamping assembly and is fixedly connected with the base, for down-pressing the clamping assembly makes the spray hole and the plugging assembly sealed butt joint.

[0009] Further, the plugging assembly includes a plug seat fixedly arranged on the top of the base, a recess is formed in the top of the plug seat, a plug is detachably embedded in the recess, a butt joint groove matching the contour of the nozzle end is formed in the top of the plug, and a plugging column for plugging the spray hole is fixedly arranged in the butt joint groove.

[0010] Further, the plug is provided with multiple groups, and each plug corresponding to a nozzle end with different structural features is provided with a butt joint groove and a plugging column matching the nozzle end.

[0011] Further, the plug is made of polytetrafluoroethylene material.

[0012] Further, the clamping assembly comprises a clamping sleeve and a pressing ring; the inner diameter of the clamping sleeve is greater than the outer diameter of the nozzle end and smaller than the outer diameter of the convex ring; a ring groove is formed in the top end of the clamping sleeve;

[0013] The pressing ring is formed by two half rings and is embedded in the ring groove in a gap fit; the inner diameter of the pressing ring is greater than the outer diameter of the nozzle end and smaller than the outer diameter of the convex ring; a pressing groove is formed in the bottom end of the pressing ring, and the inner diameter of the pressing groove is greater than the outer diameter of the convex ring.

[0014] Further, a rubber pad is arranged above the convex ring in the pressing groove.

[0015] Further, the lower pressing assembly comprises two vertical columns fixedly arranged on the top of the base, the two vertical columns are symmetrically arranged on the two sides of the plugging assembly, the top of the two vertical columns is provided with a pressing block, the two ends of the pressing block are respectively provided with a through hole, the top of the two vertical columns is correspondingly arranged through the through hole, the top of the vertical column is threadedly connected with a butterfly nut, the bottom of the pressing block is fixedly provided with a lower pressing piece, the bottom of the lower pressing piece is provided with a avoiding groove, and the bottom end of the lower pressing piece is pressed on the top surface of the pressing ring.

[0016] Further, a through groove is formed in one side of any through hole in a direction perpendicular to the plane where the two vertical columns are located; the top of the vertical column is provided with a limiting step below the pressing block.

[0017] Compared with the prior art, the utility model has the advantages of:

[0018] The sealing test tool of the utility model is provided with a plugging assembly, a clamping assembly and a lower pressing assembly, the nozzle end is clamped through the clamping assembly, and then the lower pressing assembly is pressed on the clamping assembly, so that the nozzle end and the plugging assembly are tightly fixed and clamped, and the nozzle hole is plugged.

[0019] It should be understood that the content described in the utility model content part is not intended to limit the key or important features of the embodiments of the utility model, nor is it intended to limit the scope of the utility model. Other features of the utility model will become apparent through the following description. BRIEF DESCRIPTION OF DRAWINGS

[0020] Other features, objects and advantages of the utility model will become more apparent through reading the detailed description of the non-limiting embodiments made by referring to the following drawings:

[0021] Figure 1 It is a structure schematic view of a spray rod;

[0022] Figure 2A sectional view of the nozzle end;

[0023] Figure 3 A structure diagram of the sealing test tool;

[0024] Figure 4 A structure diagram of the spray rod installed in the sealing test tool;

[0025] Figure 5 A structure diagram of the spray rod installed in the sealing test tool;

[0026] Figure 6 A Figure 5 A sectional view of the middle A-A.

[0027] Reference signs in the drawings: 1, base; 2, plugging assembly; 3, clamping assembly; 4, pressing assembly; 5, spray rod;

[0028] 21, plug base; 22, embedding groove; 23, plug; 24, butt joint groove; 25, plugging column;

[0029] 31, clamping sleeve; 32, pressing ring; 33, ring groove; 34, pressing groove; 35, rubber pad;

[0030] 41, stand column; 42, pressing block; 43, through hole; 44, butterfly nut; 45, pressing piece; 46, avoiding groove; 47, through groove; 48, limiting step;

[0031] 51, mounting end; 52, nozzle end; 53, mounting seam; 54, spray hole; 55, convex ring. DETAILED DESCRIPTION

[0032] The utility model will be explained in further detail below by combining with the drawings and embodiments. It can be understood that the specific embodiments described here are only used for explaining the related utility model, and are not limited to the utility model. In addition, it needs to be explained that only the parts related to the utility model are shown in the drawings for the convenience of description.

[0033] It needs to be explained that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict. The utility model will be explained in detail below by combining with the drawings and embodiments.

[0034] Please refer to Figures 1-6 The embodiment of the utility model provides a spray rod sealing test tool, which comprises:

[0035] The base 1;

[0036] The plugging assembly 2 is arranged at the top of the base 1 and is used for plugging the spray hole 54;

[0037] The clamping assembly 3 is arranged above the plugging assembly 2 and is used for clamping the nozzle end 52 through the convex ring 55 on the nozzle end 52.

[0038] The down-pressing assembly 4 is arranged above the clamping assembly 3 and is fixedly connected with the base 1, and is used for pressing down the clamping assembly 3 to seal and connect the spray hole 54 with the plugging assembly 2.

[0039] In the embodiment, when the spray rod 5 is assembled and molded and then subjected to a sealing test, the clamping assembly 3 is first used to clamp the nozzle end 52 through the convex ring 55 on the nozzle end 52, then the nozzle end 52 is downwardly connected with the plugging assembly 2, and then the down-pressing assembly 4 is pressed on the clamping assembly 3, so that the nozzle end 52 is tightly pressed and fixed with the plugging assembly 2, and the spray hole 54 is plugged. Then the mounting end 51 of the spray rod 5 is connected with a test device, the test device injects high-pressure medium into the spray rod 5, and whether the high-pressure medium leaks at the mounting joint 53 is observed. If not, the sealing test of the spray rod 5 is qualified; otherwise, it is unqualified. The sealing test tooling of the application is convenient to operate, has high test efficiency, good plugging effect, and accurate detection, and ensures the machining quality of the spray rod 5.

[0040] In a preferred embodiment, as shown in Figure 3 and Figure 6 The plugging assembly 2 comprises a plug seat 21 fixedly arranged on the top of the base 1, the top of the plug seat 21 is provided with an embedding groove 22, the embedding groove 22 is detachably embedded with a plug 23, the top of the plug 23 is provided with a connecting groove 24 matched with the contour of the nozzle end 52, and the connecting groove 24 is fixedly arranged with a plugging column 25 used for plugging the spray hole 54.

[0041] In the embodiment, after the nozzle end 52 is embedded in the connecting groove 24, the plugging column 25 is inserted into the spray hole 54, the nozzle end 52 is tightly pressed, and the spray hole 54 is plugged, which has good sealing effect and ensures the accuracy of the test.

[0042] In a preferred embodiment, a plurality of plugs 23 are arranged, each plug 23 is provided with a connecting groove 24 and a plugging column 23 matched with the nozzle end 52 of different structural features, and the plug 23 matched with the nozzle end 52 of different structural features is selected and embedded in the embedding groove 22, which meets the sealing test requirements of various spray rods 5 and has good adaptability.

[0043] In a preferred embodiment, the plug 23 is made of polytetrafluoroethylene material, which has good plugging effect and low processing cost.

[0044] In a preferred embodiment, as shown in Figure 3 and Figure 6 The clamping assembly 3 comprises a clamping sleeve 31 and a pressing ring 32; the inner diameter of the clamping sleeve 31 is greater than the outer diameter of the nozzle end 52 and less than the outer diameter of the convex ring 55; a ring groove 33 is arranged at the top end in the clamping sleeve 31;

[0045] The compression ring 32 is formed by two half rings and is fitted into the ring groove 33 with a gap; the inner diameter of the compression ring 32 is greater than the outer diameter of the nozzle end 52 and less than the outer diameter of the convex ring 55; a compression groove 34 is formed in the bottom end of the compression ring 32, and the inner diameter of the compression groove 34 is greater than the outer diameter of the convex ring 55.

[0046] In the embodiment, when the nozzle end 52 of the spray rod 5 is clamped, the nozzle end 52 is first inserted into the clamping sleeve 31, and then the two half rings are spliced above the convex ring 55; then the compression ring 32 formed by splicing the two half rings is pressed into the ring groove 33, and the convex ring 55 is clamped by the compression ring 32 and the clamping sleeve 31, so that the nozzle end 52 is clamped and fixed, the installation is convenient, and the clamping effect is good. The lower pressing assembly 4 is pressed on the compression ring 32 to press the nozzle end 52 tightly, so as to avoid damage to the surface of the nozzle end 52 and unnecessary loss.

[0047] In a preferred embodiment, as shown in Figure 6 , a circle of rubber pads 35 is arranged above the convex ring 55 in the compression groove 34 to protect the convex ring 55.

[0048] In a preferred embodiment, as shown in Figure 3 and Figure 6 , the lower pressing assembly 4 includes two vertical columns 41 fixedly arranged on the top of the base 1, the two vertical columns 41 are symmetrically distributed on the two sides of the plugging assembly 2, the top ends of the two vertical columns 41 are provided with pressing blocks 42, the two ends of the pressing block 42 are respectively provided with through holes 43, the top ends of the two vertical columns 41 pass through the through holes 43 one by one, the top ends of the vertical columns 41 are threadedly connected with butterfly nuts 44, the bottom of the pressing block 42 is fixedly provided with a lower pressing piece 45, the bottom of the lower pressing piece 45 is provided with an avoiding groove 46, and the bottom end of the lower pressing piece 45 is pressed on the top surface of the compression ring 32.

[0049] In the embodiment, when the nozzle end 52 is pressed and fixed, the lower pressing piece 45 is pressed on the top surface of the compression ring 32, and the corresponding part of the spray rod 5 is embedded in the avoiding groove 46 to avoid interference. At this time, the two butterfly nuts 44 are tightened one by one to complete the pressing and fixing of the nozzle end 52, which is convenient to operate and stable to fix.

[0050] In a preferred embodiment, as shown in Figure 3 , one side of any through hole 43 is provided with a through groove 47 in a direction perpendicular to the plane where the two vertical columns 41 are located; the top end of the vertical column 41 is provided with a limiting step 48 below the pressing block 48.

[0051] In the embodiment, after the sealing test of the spray bar 5 is completed, the two butterfly nuts 44 are loosened, the pressing piece 45 is removed by rotating the pressing block 42, and the spray head end 52 is released from the pressing and fixing. Without the need to unscrew the butterfly nuts 44, the operation is convenient, and the test efficiency is improved. The rotated pressing block 42 is supported by the limiting step 48, and the next installation and fixing are facilitated.

[0052] In the description of the present specification, the terms "connection", "mounting", "fixing" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integral connection; can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] In the description of the present specification, the terms "one embodiment", "some embodiments" and the like mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0054] The above is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A spray bar seal test fixture characterized by, The utility model relates to a nozzle sealing device, including: Base (1); Blocking assembly (2) is set up in the top of base (1), is used for blocking the orifice (54); Clamping assembly (3) is set up above blocking assembly (2), is used for clamping through the convex ring (55) on the end (52) of spray head; Lowering assembly (4) is set up above clamping assembly (3) and is fixedly connected with base (1), is used for lowering clamping assembly (3) and makes orifice (54) and blocking assembly (2) sealed butt joint.

2. The lance seal test fixture of claim 1, wherein, Blocking assembly (2) includes fixedly set up in the top of base (1) and is closed in the top of plug seat (21), and the top of plug seat (21) is provided with the embedding groove (22), and the embedding groove (22) is detachably embedded with plug (23), and the top of plug (23) is provided with the butt joint groove (24) matching with the contour of end (52) of spray head, and the butt joint groove (24) is fixedly provided with the blocking column (25) for blocking orifice (54) in.

3. The lance seal test fixture of claim 2, wherein, Plug (23) is provided with multiple groups, and each plug (23) is provided with the butt joint groove (24) and blocking column (25) matching with it corresponding to the end (52) of spray head of different structural features.

4. The lance seal test fixture of claim 3, wherein, Plug (23) is made of polytetrafluoroethylene material.

5. The lance seal test fixture of claim 1, wherein, Clamping assembly (3) includes clamping sleeve (31) and pressure ring (32);The inside diameter of clamping sleeve (31) is greater than the outside diameter of end (52) of spray head and less than the outside diameter of convex ring (55);The top end in clamping sleeve (31) is provided with a ring groove (33); Pressure ring (32) is formed by two half rings and is inserted into ring groove (33) with clearance fit;The inside diameter of pressure ring (32) is greater than the outside diameter of end (52) of spray head and less than the outside diameter of convex ring (55);The bottom end in pressure ring (32) is provided with a pressure groove (34), and the inside diameter of pressure groove (34) is greater than the outside diameter of convex ring (55).

6. The lance seal test fixture of claim 5, wherein, A circle of rubber pad (35) is arranged above convex ring (55) in pressure groove (34).

7. The lance seal test fixture of claim 5, wherein, Lowering assembly (4) includes two vertical columns (41) fixedly arranged on the top of base (1), and the two vertical columns (41) are symmetrically distributed on the two sides of blocking assembly (2), and the top end of the two vertical columns (41) is provided with a pressing block (42), and the two ends of the pressing block (42) are respectively provided with a through hole (43), and the top end of the two vertical columns (41) passes through the through hole (43) one by one, and the top end of the vertical column (41) is threadedly connected with a butterfly nut (44), and the bottom of the pressing block (42) is fixedly provided with a lower pressing piece (45), and the bottom of the lower pressing piece (45) is provided with a avoiding groove (46), and the bottom end of the lower pressing piece (45) is pressed on the top surface of pressure ring (32).

8. The lance seal test fixture of claim 7, wherein, A through groove (47) is formed on one side of any through hole (43) in the direction perpendicular to the plane where the two vertical columns (41) are located;The top end of vertical column (41) is provided with a limiting step (48) below pressing block (42).

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