CN110806289B - Test tool for multi-plunger type pipeline assembly - Google Patents
Test tool for multi-plunger type pipeline assembly Download PDFInfo
- Publication number
- CN110806289B CN110806289B CN201911192374.7A CN201911192374A CN110806289B CN 110806289 B CN110806289 B CN 110806289B CN 201911192374 A CN201911192374 A CN 201911192374A CN 110806289 B CN110806289 B CN 110806289B
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- positioning
- pipeline assembly
- plunger
- flange
- plunger type
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
- G01M3/08—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for pipes, cables or tubes; for pipe joints or seals; for valves; for welds
- G01M3/085—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for pipes, cables or tubes; for pipe joints or seals; for valves; for welds for pipe joints or seals
Abstract
The invention provides a test tool for a multi-plunger type pipeline assembly, which comprises: the positioning seat is provided with: the positioning table is connected with the inlet flange through a fastener, and a connecting hole corresponding to the fixing hole in the inlet flange is formed in the positioning table; the wall of the positioning cylinder is in contact with the pipeline so as to reduce the deformation of the pipeline; the connecting boss is convexly arranged on the positioning seat, is provided with external threads and is used for being in threaded connection with the connecting nut so as to fix the end part of the pipeline on the positioning seat; the jack is arranged on the connecting boss and the positioning seat, the jack is used for inserting the plunger of the multi-plunger type pipeline assembly when the connecting nut is in threaded connection with the connecting boss, and the bottom of the jack hole is provided with a plugging material for plugging a plunger liquid outlet. Has the advantages that: the two ends of the pipeline assembly are fixed, the pipeline at the middle part is limited by the positioning barrel, the test operation can be facilitated, the deformation of the pipeline assembly is reduced, the shape correcting process can be omitted after the test is finished, and the cost is saved.
Description
Technical Field
The invention relates to a test tool for a multi-plunger type pipeline assembly.
Background
The multi-plunger type pipeline assembly is a mechanical connection part of an oil collecting and injecting system and is widely applied to large-scale hydraulic equipment such as aviation and aerospace engines, gas turbines and the like. A many plunger formula pipeline assembly among the prior art is as shown in fig. 1, and this many plunger formula pipeline assembly 1 includes inlet flange 11 and fixes a plurality of pipelines 15 on inlet flange 11, and each pipeline 15 differs in length and is the crookedness, and the tip of each pipeline 15 all welded fastening has plunger 14, still overlaps on each pipeline 15 to be equipped with coupling nut 13. When the multi-plunger type pipeline assembly is used, the multi-plunger type pipeline assembly 1 is fixed on hydraulic equipment through the fixing hole 12 arranged on the inlet flange 11, each pipeline 15 is fixedly connected with an interface on an oil supply position through the connecting nut 13, then hydraulic oil is introduced from the inlet flange 11, and oil is supplied to different oil supply positions through the six pipelines 15 and the plunger 14 respectively.
Because each pipeline and plunger are welded fixedly, its welding quality has decided the gas tightness of pipeline subassembly good or bad, can influence the quality of fuel feeding certainly, consequently need test many plunger formula pipeline subassemblies to detect pipeline and plunger welded position's gas tightness. However, at present, no proper test tool is available, the operation of the test is inconvenient, the pipeline is easy to deform after a medium with certain pressure is introduced, and a shape correction procedure is required after the test, so that the operation is troublesome, the production cost is increased, and the size consistency and the assembly interchangeability of the components are difficult to ensure.
Disclosure of Invention
The invention aims to provide a test tool for a multi-plunger type pipeline assembly, which is convenient for detecting the welding quality of a pipeline and a plunger and can reduce the deformation of the pipeline.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a test fixture of many plungers formula pipeline subassembly, includes:
the positioning seat is provided with:
the positioning table is used for being fixedly connected with an inlet flange of the multi-plunger type pipeline assembly through a fastener, and connecting holes corresponding to the fixing holes in the inlet flange are formed in the positioning table;
the wall of the positioning cylinder is used for being in contact with the pipeline of the multi-plunger type pipeline assembly so as to reduce the deformation of the pipeline;
the connecting bosses are arranged in plurality and are respectively convexly arranged on the positioning seat, external threads are arranged on the connecting bosses, and the connecting bosses are used for being in threaded connection with connecting nuts of the multi-plunger type pipeline assembly so as to fix the end parts of the pipelines on the positioning seat;
the jack is arranged on the connecting boss or on the connecting boss and the positioning seat, the jack is used for inserting the plunger of the multi-plunger type pipeline assembly when the connecting nut is in threaded connection with the connecting boss, and the bottom of the jack is provided with a plugging material for plugging a plunger liquid outlet.
The beneficial effects of the above technical scheme are that: a positioning table is arranged on the positioning seat, and a connecting hole is formed in the positioning table, so that the inlet flange can be conveniently fixed; the positioning seat is also provided with a positioning cylinder, and the cylinder wall of the positioning cylinder is in contact with the pipeline, so that the deformation of the pipeline can be reduced; still be provided with a plurality of connection bosss on the positioning seat, be equipped with the external screw thread on the connection boss, convenient and coupling nut threaded connection to be fixed in the positioning seat with the tip of pipeline on. Therefore, the two ends of the pipeline assembly are fixed, and the pipeline in the middle is limited by the positioning barrel, so that the test operation can be facilitated. In addition, be provided with the jack on connection boss or connection boss and the positioning seat, when making connection boss and coupling nut threaded connection, the plunger can insert in the jack, and the plugging material that sets up at the bottom of the jack hole then can seal the plunger liquid outlet, when experimental like this, just can let in the gas or the liquid of certain pressure in to many plunger formula pipeline subassemblies, whether the observation is weeping or leaks gas, thereby judge the welding quality of pipeline and plunger, grasp pipeline subassembly's gas tightness is good or bad, and the deformation of pipeline subassembly has been reduced, can save the school shape process after experimental end, and convenient for operation.
Furthermore, in order to be connected with a test system conveniently, the fixing effect of the inlet flange is ensured simultaneously, the test tool of the multi-plunger type pipeline assembly further comprises a flange joint, the flange joint comprises a first connecting section, a second connecting section and a flange plate, the first connecting section is used for being in sealed insertion connection with the inlet flange, the second connecting section is used for being connected with the test system, the flange plate is located between the first connecting section and the second connecting section, the flange joint and the inserting position of the inlet flange penetrate through the positioning table, the fastener comprises a bolt and a nut, the flange plate is provided with a bolt hole corresponding to the fixing hole and the connecting hole, and the bolt penetrates through the inlet flange, the positioning table and the flange plate in sequence to fix the inlet flange and the flange joint on the positioning table simultaneously.
Furthermore, in order to conveniently install the flange joint and the inlet flange on the positioning seat, a U-shaped groove with an open end is formed in the positioning table, and the inserting position of the flange joint and the inlet flange is located in the U-shaped groove.
Furthermore, in order to facilitate the test, a supporting table used for being in contact with the pipeline support is further arranged on the positioning seat, and the supporting table is arranged at the bottom of the positioning cylinder.
Furthermore, in order to facilitate connection, an avoiding groove for avoiding the connecting nut is arranged on the supporting table, so that the connecting nut and the connecting boss are connected conveniently.
Drawings
FIG. 1 is a perspective view of a prior art multiple plunger type manifold assembly;
FIG. 2 is a fitting view of a test fixture of a multi-plunger type pipeline assembly and the multi-plunger type pipeline assembly in the invention;
FIG. 3 is a block diagram of the positioning socket of FIG. 2;
FIG. 4 is a sectional view taken along line A-A of FIG. 3;
FIG. 5 is a sectional view taken along line B-B of FIG. 3;
fig. 6 is a cross-sectional view of the flange joint of fig. 2.
In the figure: 1-a multi-plunger tubing assembly; 11-inlet flange; 12-a fixation hole; 13-a coupling nut; 14-a plunger; 15-pipeline; 2-positioning seat; 21-positioning seat body; 22-a positioning table; 23-a U-shaped slot; 24-a positioning cylinder; 25-a support table; 26-avoiding the groove; 27-connecting the boss; 28-a jack; 29-connecting hole; 3-a flange joint; 31-a first connection section; 32-a second connection segment; 33-flange plate; 34-a bell mouth; 35-bolt perforation; 36-a ring groove; 37-a plug hole; 4-a bolt; 5-a nut; 6-gasket.
Detailed Description
One embodiment of a test fixture (hereinafter referred to as a test fixture) for a multi-plunger type pipeline assembly in the invention is shown in fig. 2 and 3, and includes a positioning seat 2, the positioning seat 2 includes an annular positioning seat body 21, a positioning table 22 is arranged on the top surface of the positioning seat body 21, the positioning table 22 has an inner side surface and an outer side surface which are parallel to each other, and as shown in fig. 5, a U-shaped groove 23 with an open upper end is arranged on the positioning table 22, and connecting holes 29 are respectively arranged on the positioning table 22 and on two sides of the U-shaped groove 23.
As shown in fig. 2 and 3, a positioning tube 24 coaxial with the positioning seat body 21 is disposed on the top surface of the positioning seat body 21, a ring of support platform 25 is disposed at the bottom of the positioning tube 24, and a plurality of avoiding grooves 26 are disposed on the support platform 25.
As shown in fig. 3 and 4, a plurality of connecting bosses 27 are convexly arranged on the top surface of the positioning seat body 21, external threads are arranged on the connecting bosses 27, inserting holes 28 are arranged in the connecting bosses 27 and the positioning seat body 21, that is, the inserting holes 28 extend from the connecting bosses 27 into the positioning seat body 21, and a plugging material (not shown) such as a rubber pad or plasticine is arranged at the bottom of the inserting holes 28.
The test tool further comprises a flange joint 3, and as shown in fig. 1 and 6, the flange joint 3 comprises a first connecting section 31, a second connecting section 32 and a flange plate 33 located between the first connecting section 31 and the second connecting section 32, a plugging hole 37 is formed in the first connecting section 31, a plugging portion on the inlet flange 11 of the multi-plunger type pipeline assembly 1 is plugged in, a ring groove 36 is formed in the plugging hole 37, and during plugging, a sealing ring is mounted in the ring groove 36 to ensure sealed plugging. The second connecting section 32 is provided with external threads for being connected with a test system, a liquid inlet hole communicated with the plug-in hole 37 is formed in the second connecting section 32, and the end part of the liquid inlet hole is provided with a horn mouth 34.
During use, the positioning table 22 is connected with the inlet flange 11 and the flange joint 3 of the multi-plunger type pipeline assembly 1 through fasteners, as shown in fig. 2, the fasteners in the embodiment include bolts 4, nuts 5 and gaskets 6, the end face of the flange part of the inlet flange 11 is tightly attached to the inner side face of the positioning table 22 during installation, the end face of the flange plate 33 of the flange joint 3 is tightly attached to the outer side face of the positioning table 22, it is ensured that the insertion part of the inlet flange 11 and the first connecting section 31 of the flange joint 3 are inserted in place in the process, the insertion parts of the two are located in the U-shaped groove 23, and the two can be inserted in place in advance and then directly placed in the U-shaped groove 23.
The inlet flange 11 and the flange joint 3 are simultaneously fixed to the positioning table 22 by moving the inlet flange 11 and the flange joint 3 so that the fixing holes 12 of the inlet flange 11, the connecting holes 29 of the positioning table 22, and the bolt through holes 35 of the flange plate 33 correspond to each other, sequentially passing the inlet flange 11, the positioning table 22, and the flange plate 33 through the bolts 4, and then installing the gasket 6 and the nut 5.
In the process of fixing the inlet flange 11 and the flange joint 3, the pipelines need to be supported on the supporting table 25, each pipeline is in contact with the outer wall of the positioning cylinder 24, the plunger 14 at the end of each pipeline is inserted into the connecting boss 27 and the insertion hole 28 in the positioning seat body 21, and then the connecting nut 13 is in threaded connection with the connecting boss 27, so that the end of each pipeline is fixed on the positioning seat, and in the process, the avoiding groove 26 arranged on the supporting table 25 can facilitate the connection of the connecting nut 13.
During the test, the second connecting section 32 of the flange joint 3 is connected with a test system, gas or liquid with certain pressure is introduced into the test tool from the test system, and the liquid outlet at the end part of the plunger 14 is blocked by the blocking material, so that the test medium cannot leak out from the liquid outlet at the end part of the plunger 14. It should be noted that, if the test medium is liquid, after a period of time, the welding quality of the pipeline and the plunger piston can be judged by observing whether liquid leaks, and the air tightness of the pipeline assembly can be grasped. If the test medium is gas, the whole test tool can be placed into liquid, and the welding quality of the pipeline and the plunger piston can be judged by observing whether bubbles are generated.
The test tool enables the two ends of the pipeline assembly to be fixed, test operation is convenient, the middle part is limited by the positioning cylinder, deformation is reduced, and a shape correcting process can be omitted after the test is finished, so that production cost can be reduced, and size consistency and assembly interchangeability of the assembly are ensured.
In other embodiments of the test tool, the support table may not be provided with an avoidance groove under the condition that the support table does not affect the assembly and connection of the connecting nut.
In other embodiments of the test tool, the positioning seat may not be provided with a supporting platform, and the pipeline is directly contacted with the positioning seat or the bottom of the pipeline is suspended.
In other embodiments of the test tool, the positioning table is not provided with a U-shaped groove, but with a through hole, and at this time, only the inlet flange and the flange joint can be inserted into the through hole.
In other embodiments of the test tool, the positioning seat body is not annular, but disc-shaped.
In other embodiments of the test fixture, the fastener may not include a shim.
In other embodiments of the test tool, the test tool does not include a flange joint, at this time, the connecting hole on the positioning table can be set to be a threaded hole, and the bolt passes through the inlet flange and then is directly in threaded connection with the positioning table, so that the inlet flange is fixed on the positioning table, and at this time, the fastener is only formed by the bolt.
In other embodiments of the test tool, the jack is only arranged in the connecting boss and does not extend into the positioning seat, and the connecting boss needs to have a certain height at the moment, so that the length requirement of the jack can be met.
In other embodiments of the test tool, when the number of the pipelines of the multi-plunger type pipeline assembly is only four or two, the positioning seat can also be provided with only four or two connecting bosses, and in a word, the number of the connecting bosses corresponds to the number of the pipelines of the multi-plunger type pipeline assembly one to one.
Claims (5)
1. The utility model provides a test frock of many plungers formula pipeline subassembly which characterized in that includes:
the positioning seat is provided with:
the positioning table is used for being fixedly connected with an inlet flange of the multi-plunger type pipeline assembly through a fastener, and connecting holes corresponding to the fixing holes in the inlet flange are formed in the positioning table;
the wall of the positioning cylinder is used for being in contact with the pipeline of the multi-plunger type pipeline assembly so as to reduce the deformation of the pipeline;
the connecting bosses are arranged in plurality and are respectively convexly arranged on the positioning seat, external threads are arranged on the connecting bosses, and the connecting bosses are used for being in threaded connection with connecting nuts of the multi-plunger type pipeline assembly so as to fix the end parts of the pipelines on the positioning seat;
the jack is arranged on the connecting boss or on the connecting boss and the positioning seat, the jack is used for inserting the plunger of the multi-plunger type pipeline assembly when the connecting nut is in threaded connection with the connecting boss, and the bottom of the jack is provided with a plugging material for plugging a plunger liquid outlet.
2. The test tool for the multi-plunger type pipeline assembly according to claim 1, wherein the test tool for the multi-plunger type pipeline assembly further comprises a flange joint, the flange joint comprises a first connecting section used for being in sealed insertion connection with the inlet flange, a second connecting section used for being connected with a test system, and a flange plate located between the first connecting section and the second connecting section, the insertion part of the flange joint and the inlet flange penetrates through the positioning table, the fastener comprises a bolt and a nut, bolt through holes corresponding to the fixing hole and the connecting hole are formed in the flange plate, and the bolt sequentially penetrates through the inlet flange, the positioning table and the flange plate to fix the inlet flange and the flange joint on the positioning table.
3. The test fixture of a multi-plunger pipeline assembly according to claim 2, characterized in that a U-shaped groove with an open end is formed in the positioning table, and the insertion portion of the flange joint and the inlet flange is located in the U-shaped groove.
4. The test tool for the multi-plunger type pipeline assembly according to any one of claims 1-3, wherein a supporting table for supporting and contacting with the pipeline is further arranged on the positioning seat, and the supporting table is arranged at the bottom of the positioning cylinder.
5. The testing tool for the multi-plunger type pipeline assembly according to claim 4, wherein an avoiding groove for avoiding the connecting nut is formed in the supporting platform so as to facilitate connection between the connecting nut and the connecting boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911192374.7A CN110806289B (en) | 2019-11-28 | 2019-11-28 | Test tool for multi-plunger type pipeline assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911192374.7A CN110806289B (en) | 2019-11-28 | 2019-11-28 | Test tool for multi-plunger type pipeline assembly |
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| Publication Number | Publication Date |
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| CN110806289A CN110806289A (en) | 2020-02-18 |
| CN110806289B true CN110806289B (en) | 2021-04-30 |
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| CN201911192374.7A Active CN110806289B (en) | 2019-11-28 | 2019-11-28 | Test tool for multi-plunger type pipeline assembly |
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