CN109632324B - Test device for nozzle liquid flow test - Google Patents
Test device for nozzle liquid flow test Download PDFInfo
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- CN109632324B CN109632324B CN201811528921.XA CN201811528921A CN109632324B CN 109632324 B CN109632324 B CN 109632324B CN 201811528921 A CN201811528921 A CN 201811528921A CN 109632324 B CN109632324 B CN 109632324B
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- nozzle
- test
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- pipe
- inlet tube
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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
- G01M15/00—Testing of engines
- G01M15/14—Testing gas-turbine engines or jet-propulsion engines
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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
- G01M13/00—Testing of machine parts
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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
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
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- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to a test device for a nozzle liquid flow test, which solves the problems of long test time, low test efficiency and high labor intensity of personnel of the existing nozzle liquid flow test system; the testing device comprises a transmission cylinder, a nozzle mounting pipe and a moving assembly; the nozzle mounting pipe is fixedly arranged on the mounting frame, and a boss is arranged inside the nozzle mounting pipe; the movable assembly comprises a first water inlet pipe, a second water inlet pipe, a collector and a test pipe, wherein the collector is of a cylindrical structure; first inlet tube, second inlet tube set up on the mounting bracket through linear bearing slidable respectively, and the lower extreme of first inlet tube, second inlet tube is fixed respectively and is set up in the both sides of collector roof, and with collector inner chamber intercommunication, and the test tube setting is at the bottom plate middle part of collector, and with collector inner chamber intercommunication, and transmission cylinder is fixed to be set up on the mounting bracket, and is located the centre of first inlet tube and second inlet tube, the roof fixed connection of its telescopic link and collector.
Description
Technical Field
The invention relates to the field of nozzle flow tests, in particular to a test device for a nozzle liquid flow test.
Background
The nozzle liquid flow test is an important link of engine production, in order to ensure the yield of the nozzles, the nozzles need to be repaired and retested on site according to technical requirements in the nozzle liquid flow test process, the number of the nozzles in each batch of tests is about thousands, and the liquid flow test task is large. In traditional nozzle liquid flow test, the installation of product is fixed the product and is tested through threaded connection's mode, and the installation and the dismantlement of product all adopt artifical mode, and this kind of mode leads to the assemble duration of product to account for great proportion in single nozzle test cycle, and operating personnel intensity of labour is big, and product test cycle is long, and test efficiency is low, has lagged nozzle test cycle.
Disclosure of Invention
The invention aims to solve the problems of long test time, low test efficiency and high labor intensity of personnel of the conventional nozzle liquid flow test system, and provides a test device for a nozzle liquid flow test.
The technical scheme of the invention is as follows:
a test device for a nozzle liquid flow test comprises a mounting frame and at least two groups of test devices; the testing device comprises a transmission cylinder, a nozzle mounting pipe and a moving assembly; the nozzle mounting pipe is fixedly arranged on the mounting frame, and a boss for placing the nozzle is arranged in the nozzle mounting pipe; the movable assembly comprises a first water inlet pipe, a second water inlet pipe, a collector and a test pipe, wherein the collector is of a cylindrical structure; first inlet tube, second inlet tube set up on the mounting bracket through linear bearing slidable respectively, and the lower extreme of first inlet tube, second inlet tube is fixed respectively and is set up in the both sides of collector roof, and with collector inner chamber intercommunication, and the test tube setting is at the bottom plate middle part of collector, and with collector inner chamber intercommunication, and transmission cylinder is fixed to be set up on the mounting bracket, and is located the centre of first inlet tube and second inlet tube, the roof fixed connection of its telescopic link and collector.
Furthermore, the mounting frame comprises an upper base plate, a lower base plate and a supporting plate, wherein the upper base plate and the lower base plate are fixedly connected through the supporting plate.
Further, the lower end of the test tube is also provided with a connecting tube.
Further, the connecting pipe is matched with the nozzle mounting pipe in a stop way.
Furthermore, a first sealing ring is arranged on the contact surface of the connecting pipe and the nozzle mounting pipe.
Furthermore, the test tube is provided with a pressure measuring hole for connecting pressure measuring equipment.
Further, a second sealing ring is arranged on the nozzle mounting pipe and the nozzle mounting surface.
Compared with the prior art, the invention has the following technical effects:
1. the test device for the nozzle liquid flow test adopts two groups of test devices, and the quick switching and installation of the two product tests are realized. In the test process of the nozzle, one station performs nozzle test, and the other station performs nozzle fixing and mounting; after the nozzle test is completed, the nozzle is switched to another station to perform the test of another nozzle, the switching time is 2 seconds, and the pipeline connection in the nozzle test installation process is effectively shortened to 2 seconds from 1 min.
2. The design of the two water inlet pipes of the testing device can eliminate the tangential loading force generated by the water flow impact in the single water inlet pipe on the piston of the air cylinder, so that the piston moves up and down and is blocked, and the installation of a product tool is further influenced. The design of two way inlet tubes can reduce the pipe diameter simultaneously under the condition of guaranteeing the circulation ability, and then reduces the frock volume, reaches pleasing to the eye effect.
3. According to the testing device, the air cylinder is arranged in the centers of the two water inlet pipes, so that the concentricity of the clamping device and the product tool can be ensured, the acting force of the air cylinder can completely act on the product tool, the effective closing of the tool is ensured, and the safe use of the tool is ensured. Install the cylinder at two way inlet tube centers, can guarantee simultaneously that dress card device is concentric with the product frock, the cylinder effort can be used in the product frock completely, guarantees that the frock is effectively closed, guarantees the safe handling of frock.
Drawings
FIG. 1 is a schematic view of a test apparatus for nozzle flow testing according to the present invention;
FIG. 2 is a structural diagram of the testing device of the present invention.
Reference numerals: 1-mounting frame, 2-nozzle, 3-testing device, 11-upper base plate, 12-lower base plate, 13-supporting plate, 31-transmission cylinder, 32-nozzle mounting tube, 33-first water inlet tube, 34-second water inlet tube, 35-collector, 36-testing tube, 37-linear bearing, 38-pressure measuring hole, 39-sealing ring and 310-connecting tube.
Detailed Description
The invention is described in further detail below with reference to the following figures and specific examples:
the test device for the nozzle liquid flow test is mainly used for the nozzle liquid flow test of the rocket engine to finish the three-stage working condition flow test of the nozzle.
The test device for the nozzle liquid flow test comprises a mounting frame 1 and two groups of test devices 3, wherein the mounting frame 1 comprises an upper bottom plate 11, a lower bottom plate 12 and a supporting plate 13, and the upper bottom plate 11 and the lower bottom plate 12 are fixedly connected through the supporting plate 13.
The testing device 3 comprises a transmission cylinder 31, a nozzle mounting pipe 32 and a moving assembly; the nozzle mounting pipe 32 is fixedly arranged on the lower base plate 12, an annular boss for placing the nozzle 2 is arranged in the nozzle mounting pipe 32, and a second sealing ring 39 is arranged on the nozzle mounting surface of the nozzle mounting pipe 32 and the nozzle 2.
The moving assembly comprises a first water inlet pipe 33, a second water inlet pipe 34, a collector 35, a connecting pipe 310 and a testing pipe 36, wherein the collector 35 is of a cylindrical structure; first inlet tube 33, second inlet tube 34 sets up on upper plate 11 through linear bearing 37 slidable respectively, first inlet tube 33, the lower extreme of second inlet tube 34 is fixed the both sides that set up at collector 35 roof respectively, and with collector 35 inner chamber intercommunication, test tube 36 sets up in the bottom plate middle part of collector 35, and with collector 35 inner chamber intercommunication, transmission cylinder 31 is fixed to be set up on upper plate 11, and be located between first inlet tube 33 and the second inlet tube 34, its telescopic link and collector 35's roof fixed connection, be provided with pressure measurement hole 38 on the test tube 36, be used for installing pressure measurement equipment, detect the pressure in the test tube 36. The lower end of the test tube 36 is further provided with a connecting tube 310, the connecting tube 310 is in a stop fit with the nozzle mounting tube 32, and a first sealing ring 39 is arranged on the contact surface of the connecting tube 310 and the nozzle mounting tube 32.
The test device for the nozzle liquid flow test is connected with a first external conveying pipeline and a second external conveying pipeline, the outlet of the first conveying pipeline is connected with one group of moving assemblies, particularly is communicated with a first water inlet pipe 33 and a second water inlet pipe 34 of one moving assembly through a three-way joint, the outlet of the second conveying pipeline is connected with the other group of moving assemblies, particularly is communicated with the first water inlet pipe 33 and the second water inlet pipe 34 of the other moving assembly through the three-way joint, and is communicated with an external pump source, so that test liquid is extracted.
The nozzle 2 to be tested is conveyed to the testing device 3 for testing, after a product is installed, the transmission cylinder 31 drives the moving assembly to move, the connecting pipe 310 is communicated with the nozzle installation pipe 32 and is sealed through the sealing ring 39, test liquid passes through the nozzle 2, product testing can be conducted, after a single test is finished, the other path of cylinder is pressed down to conduct testing, and rapid switching of two product tests is achieved. The nozzle 2 can be installed quickly through the transmission cylinder 31, the operation intensity can be effectively reduced, and the test efficiency is improved.
Claims (7)
1. A test device for nozzle liquid flow test is characterized in that: comprises a mounting rack (1) and at least two groups of testing devices (3);
the testing device (3) comprises a transmission cylinder (31), a nozzle mounting pipe (32) and a moving assembly;
the nozzle mounting pipe (32) is fixedly arranged on the mounting rack (1), and a boss for placing the nozzle (2) is arranged in the nozzle mounting pipe; the moving assembly comprises a first water inlet pipe (33), a second water inlet pipe (34), a collector (35) and a test pipe (36), and the collector (35) is of a cylindrical structure; first inlet tube (33), second inlet tube (34) set up on mounting bracket (1) through linear bearing (37) slidable respectively, first inlet tube (33), the lower extreme of second inlet tube (34) is fixed the both sides that set up at collector (35) roof respectively, and with collector (35) inner chamber intercommunication, test tube (36) set up in the bottom plate middle part of collector (35), and with collector (35) inner chamber intercommunication, transmission cylinder (31) are fixed to be set up on mounting bracket (1), and be located in the middle of first inlet tube (33) and second inlet tube (34), the roof fixed connection of its telescopic link and collector (35).
2. The test device for nozzle flow testing of claim 1, wherein: the mounting frame (1) comprises an upper base plate (11), a lower base plate (12) and a supporting plate (13), wherein the upper base plate (11) and the lower base plate (12) are fixedly connected through the supporting plate (13).
3. The test device for nozzle flow testing of claim 2, wherein: the lower end of the test tube (36) is also provided with a connecting tube (310).
4. The test device for nozzle flow testing of claim 3, wherein: the connecting pipe (310) is in stop fit with the nozzle mounting pipe (32).
5. The test device for nozzle flow testing of claim 4, wherein: and a first sealing ring (39) is arranged on the contact surface of the connecting pipe (310) and the nozzle mounting pipe (32).
6. The test device for nozzle flow test according to any one of claims 1 to 5, wherein: and the test tube (36) is provided with a pressure measuring hole (38) for connecting pressure measuring equipment.
7. The test device for nozzle flow testing of claim 6, wherein: and a second sealing ring is arranged on the installation surfaces of the nozzle installation pipe (32) and the nozzle (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811528921.XA CN109632324B (en) | 2018-12-13 | 2018-12-13 | Test device for nozzle liquid flow test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811528921.XA CN109632324B (en) | 2018-12-13 | 2018-12-13 | Test device for nozzle liquid flow test |
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| Publication Number | Publication Date |
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| CN109632324A CN109632324A (en) | 2019-04-16 |
| CN109632324B true CN109632324B (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811528921.XA Active CN109632324B (en) | 2018-12-13 | 2018-12-13 | Test device for nozzle liquid flow test |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110259607B (en) * | 2019-07-31 | 2021-11-16 | 西安航天动力研究所 | Engine thrust chamber performance testing device for variable thrust rocket engine |
| CN110595783B (en) * | 2019-08-20 | 2021-04-16 | 蓝箭航天技术有限公司 | Pump pressure type liquid flow test system |
| CN111947955B (en) * | 2020-07-31 | 2021-07-20 | 西安航天动力研究所 | Inner bottom liquid flow test device |
| CN111896235B (en) * | 2020-07-31 | 2021-07-20 | 西安航天动力研究所 | Multifunctional integrated vertical fixed test bench |
| CN112557044B (en) * | 2020-11-25 | 2021-11-02 | 西安航天动力研究所 | Double-component nozzle liquid flow performance testing device |
| CN113686566B (en) * | 2021-09-22 | 2023-12-26 | 西安航天动力研究所 | Liquid flow test device suitable for outer nozzle in baffle nozzle assembly |
| CN114486213B (en) * | 2021-12-31 | 2023-08-25 | 西安航天动力研究所 | Integral liquid flow test device with automatic clamping nozzle |
| CN114414228A (en) * | 2021-12-31 | 2022-04-29 | 西安航天动力研究所 | Automatic liquid flow test device for nozzle |
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| JPH1010035A (en) * | 1996-06-27 | 1998-01-16 | Toa Medical Electronics Co Ltd | Particle analyzer |
| CN102980616A (en) * | 2012-12-03 | 2013-03-20 | 西安航天发动机厂 | System for accurately measuring flow of engine nozzle |
| CN203908762U (en) * | 2014-05-15 | 2014-10-29 | 温岭市涌艺清洁设备有限公司 | Nozzle testing machine of high-pressure cleaning machine |
| CN204964196U (en) * | 2015-09-02 | 2016-01-13 | 湖北三江航天江北机械工程有限公司 | Experimental testing arrangement of liquid engine nozzle liquid stream |
| CN204988692U (en) * | 2015-05-29 | 2016-01-20 | 成都航利航空科技有限责任公司 | Experimental clamping device of using of nozzle air mass flow |
| CN107356425A (en) * | 2017-09-04 | 2017-11-17 | 西安航天动力研究所 | A kind of nozzle liquid stream performance test frock structure |
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2018
- 2018-12-13 CN CN201811528921.XA patent/CN109632324B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1010035A (en) * | 1996-06-27 | 1998-01-16 | Toa Medical Electronics Co Ltd | Particle analyzer |
| CN102980616A (en) * | 2012-12-03 | 2013-03-20 | 西安航天发动机厂 | System for accurately measuring flow of engine nozzle |
| CN203908762U (en) * | 2014-05-15 | 2014-10-29 | 温岭市涌艺清洁设备有限公司 | Nozzle testing machine of high-pressure cleaning machine |
| CN204988692U (en) * | 2015-05-29 | 2016-01-20 | 成都航利航空科技有限责任公司 | Experimental clamping device of using of nozzle air mass flow |
| CN204964196U (en) * | 2015-09-02 | 2016-01-13 | 湖北三江航天江北机械工程有限公司 | Experimental testing arrangement of liquid engine nozzle liquid stream |
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| CN109632324A (en) | 2019-04-16 |
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