CN114414228A - Automatic liquid flow test device for nozzle - Google Patents
Automatic liquid flow test device for nozzle Download PDFInfo
- Publication number
- CN114414228A CN114414228A CN202111669101.4A CN202111669101A CN114414228A CN 114414228 A CN114414228 A CN 114414228A CN 202111669101 A CN202111669101 A CN 202111669101A CN 114414228 A CN114414228 A CN 114414228A
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- Prior art keywords
- water
- tool
- flow test
- nozzle
- liquid flow
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- 238000012360 testing method Methods 0.000 title claims abstract description 87
- 239000007788 liquid Substances 0.000 title claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 124
- 238000005259 measurement Methods 0.000 claims abstract description 5
- 239000012530 fluid Substances 0.000 claims description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- 239000012736 aqueous medium Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 239000002609 medium Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- -1 have the firm Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses an automatic nozzle liquid flow test device which comprises a liquid flow test bed and a water return system arranged on one side of the liquid flow test bed; the liquid flow test bed comprises a frame, a measurement and control cabinet, a C-shaped support panel and a plurality of test stations; each test station comprises a lifting cylinder, a water guide tool, an upper tool, a lower tool, two sliding blocks, two guide rails, two water pipes and two hoses; the lifting cylinder is installed at the top of the C-shaped supporting panel, the guide rails are installed on the vertical surface of the C-shaped supporting panel, the water guide tool is installed on the two guide rails through the two symmetrical slide blocks respectively, and the water guide tool can move up and down along the vertical direction under the driving of a piston rod of the lifting cylinder; the upper tool is connected to the lower end of the water outlet of the water guide tool, and the lower tool is installed on the bottom surface of the C-shaped supporting panel. The invention simultaneously tests a plurality of nozzle products through a plurality of parallel test stations, thereby effectively improving the working efficiency and simultaneously improving the result accuracy.
Description
Technical Field
The invention belongs to the technical field of automatic liquid flow tests, and relates to an automatic liquid flow test device for a nozzle.
Background
The nozzle product is an important component of an aerospace attitude and orbit control engine product, the nozzle product is a nozzle assembly product after a test is finished in a single part form, and the nozzle assembly can be welded with other parts and assembled to form a complete engine product. Therefore, the test efficiency of the nozzle part product is a key factor influencing the test efficiency of the engine product. The nozzle product is in a hollow cylindrical shape, and an automatic liquid flow test device aiming at the nozzle product is not provided in the current industry.
In the conventional method, products are manually taken one by one, product codes are copied, nozzle products are manually placed into a test tool for a water test, and the reverse operation is performed after the test is completed. The test tool is composed of an upper part and a lower part which are connected through bolts, the bolts are loosened manually during testing, the product is placed into the lower tool, the end face of the upper tool is attached to the end face of the lower tool, the bolts uniformly distributed on the flange face of the tool are screwed one by one, then a water inlet pipeline is opened, and water medium flows to the lower tool through the upper tool, so that the product liquid flow test is completed. The disassembly process is operated in reverse order.
The whole test process is complicated, manual work is relied on, and efficiency is low. With the number of nozzle products dramatically increasing, the traditional manual testing model is no longer applicable. In order to improve the current situation, it is necessary to design a test device for an automatic liquid flow test of a nozzle of an attitude and orbit control engine product, so that the automation of the liquid flow test is completely realized, and the efficiency and the reliability are improved.
Disclosure of Invention
In view of the above-mentioned drawbacks and disadvantages of the prior art, it is an object of the present invention to provide an automatic nozzle flow testing apparatus.
In order to achieve the purpose, the invention adopts the following technical scheme:
an automatic liquid flow test device for a nozzle comprises a liquid flow test bed and a water return system; the liquid flow test bed comprises a frame, a measurement and control cabinet, a C-shaped support panel and a plurality of test stations; the C-shaped supporting panel is arranged on the frame; each test station comprises a lifting cylinder, a water guide tool, an upper tool, a lower tool, two sliding blocks, two guide rails, two water pipes and two hoses; the lifting cylinder is installed at the top of the C-shaped supporting panel, the guide rails are installed on the vertical surface of the C-shaped supporting panel, the water guide tool is T-shaped and is respectively installed on the two guide rails through two symmetrical slide blocks, the water guide tool is fixedly connected with a piston rod of the lifting cylinder, and the water guide tool can move up and down along the vertical direction under the driving of the piston rod of the lifting cylinder; the water guide tool is provided with two water inlets and one water outlet, the lower end of the water outlet is connected with the upper tool, and the bottom surface of the C-shaped support panel is provided with a lower tool which is overlapped with the axis of the corresponding upper tool; the two water inlets are respectively communicated with two water pipes which freely penetrate through holes on the upper end surface of the C-shaped supporting panel, and each water pipe is respectively communicated with a water source through a hose; the water outlet of the lower tool is connected to a water return system through a pipeline; and linear guide rails are respectively arranged below the two through holes on the upper end surface of the C-shaped support panel corresponding to each test station, and the water pipe freely passes through the through holes through the linear guide rails.
Further, the liquid flow test bench comprises 4 test stations.
Furthermore, a plurality of balls are axially arranged between the water pipe and the linear guide rail.
Furthermore, a waterproof enclosure is arranged on the periphery of the frame.
Furthermore, each hose is respectively installed in a drag chain, and the drag chain is installed on the top of the C-shaped support panel.
Furthermore, return water system includes the water tank, and the bottom plate of water tank and ground contained angle no more than 8.
Further, the front end of the water tank is fixed on a frame of the liquid flow test bed; the splash-proof cover plate is installed on the upper portion of the water tank, and the noise reduction grating is installed in the splash-proof cover plate through the grating support.
Further, a safety protection system is arranged outside the liquid flow test bed.
Furthermore, the safety protection system comprises an outer section frame, and a transparent acrylic panel is mounted on the outer section frame.
Furthermore, a cantilever operation screen connected with an upper computer is installed at the top of the outer frame of the sectional material.
Compared with the prior art, the invention has the following beneficial effects:
1. through designing a plurality of parallel test stations on the liquid flow test bed, the test of a plurality of nozzle products can be carried out simultaneously, and the working efficiency is effectively improved. The upper tool and the lower tool in the nozzle product flow test can be accurately butted automatically by arranging the lifting cylinder, the water guide tool, the upper tool and the lower tool, the slide block, the guide rail, the water pipe and the hose in each test station, so that the working efficiency and the result accuracy are improved;
2. the guide rail and the sliding block are adopted to realize the accurate action of the water guide tool along the vertical direction, and the problem that the upper and lower tools of the water guide tool cannot be accurately aligned due to the upward movement of the C plate caused by the overlarge water flow of the hose when the flow is large can be avoided.
3. Every water guide frock corresponds two water pipes and supplies water for it, and this structure can not only satisfy the water supply demand, and the structure symmetry is steady.
4. And linear guide rails are respectively arranged below the two through holes on the upper end surface of the C-shaped support panel corresponding to each test station, a water pipe passes through the through holes freely in the linear guide rails, and the linear guide rails provide directional guide for the water pipe.
5. The splash-proof cover plate is arranged at the upper part of the water tank of the water return system, so that the splashing of the aqueous medium can be prevented when the flow is overlarge; the noise reduction grid is arranged in the water tank through the grid support, so that the noise of the aqueous medium can be effectively reduced when the flow is large, and the shunting and evacuation of the aqueous medium are facilitated;
6. through having the safety protection system at liquid flow test bench externally mounted, can effectively realize man-machine isolation, can also protect personnel's safety when making things convenient for artifical observation device running state. The transparent acrylic panel is arranged on the outer frame of the profile, so that the safety protection is realized, and the running condition of equipment can be observed manually; through installing the cantilever operation screen, but artifical multi freedom removes the operation, through installing the three-colour warning light, can real-time display equipment current state.
Drawings
FIG. 1 is a schematic perspective view of a fluid flow test stand of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a left side view of FIG. 1;
FIG. 4 is an enlarged partial view of the fluid flow test stand;
FIG. 5 is a schematic perspective view of a water return system;
FIG. 6 is a perspective view of the device of FIG. 1 with a safety shield system disposed externally thereto;
the symbols in the figures represent:
1. the device comprises a liquid flow test bed, 101, a frame, 102, a measurement and control cabinet, 103, a waterproof enclosure, 104, a lifting cylinder, 105, a drag chain, 106, a water pipe, 107, a water guide tool, 108, an upper tool, 109, a guide rail, 110, a sliding block, 111, a lower tool, 112, a C-shaped support panel, 113, a linear guide rail, 114, a hose, 115 and a nozzle product;
2. the system comprises a water return system, 201, a water tank, 202, adjustable feet, 203, a splash cover plate, 204, a grating bracket, 205 and a noise reduction grating;
3. safety protection system, 301, section bar frame, 302, cantilever operation screen, 303, removal lower margin, 304, three-colour warning light, 305, ya keli panel.
The invention is further explained below with reference to the drawings and the detailed description.
Detailed Description
The automatic liquid flow test device of the nozzle comprises a liquid flow test bed 1 and a water return system 2; wherein:
as shown in fig. 1-4, the flow test stand 1 includes a frame 101, a test and control cabinet 102, a C-shaped support panel 112, and a plurality of test stations (preferably 4); the measurement and control cabinet 102 is arranged on the side face of the frame 101 and used for installing electric control components required by system operation, and the integrated installation structure is convenient for equipment maintenance; the C-shaped supporting panel 112 is arranged on the frame 101, is of a C-shaped structure formed by welding stainless steel plates, and releases stress after welding to enable the C-shaped structure to have the advantages of water resistance, rust resistance and high strength; each test station comprises a lifting cylinder 104, a water guide tool 107, an upper tool 108, a lower tool 111, two sliding blocks 110, two guide rails 109, two water pipes 106 and two hoses 114; the lifting cylinder 104 is installed at the top of the C-shaped support panel 112, the guide rails 109 are installed on the vertical surface of the C-shaped support panel 112, the water guide tool 107 is T-shaped and is respectively installed on the two guide rails 109 through two symmetrical sliders 110, the water guide tool 107 is fixedly connected with a piston rod of the lifting cylinder 104, and the water guide tool 107 can move up and down along the vertical direction under the driving of the piston rod of the lifting cylinder 104; the water guide tool 107 is provided with two water inlets and one water outlet, the lower end of the water outlet is connected with the upper tool 108, and the bottom surface of the C-shaped support panel 112 is provided with a lower tool 111 which is coincident with the axis of the corresponding upper tool 108; the two water inlets are respectively communicated with two water pipes 106 which freely penetrate through holes on the upper end face of the C-shaped support panel 112, and each water pipe 106 is respectively communicated with a water source through a hose 114, so that the water source supplies water to the water guide tool 107; the water outlet of the lower tool 111 is connected to the water return system 5 through a pipeline, and water drainage in the test process is achieved. In the structure, each water guide tool 107 corresponds to two water pipes 106 to supply water to the water guide tool, and the structure can meet the water supply requirement and is symmetrical and stable; the slider 110 and the guide rail 109 realize the guiding and positioning of the water guide tool 107 along the vertical direction, the guide rail 109 and the slider 110 are adopted to realize the accurate action of the water guide tool 107 along the vertical direction, and the problem that the upper and lower tools of the water guide tool 107 cannot be accurately aligned due to the upward movement of the C plate caused by the overlarge water flow of the hose 114 when the flow is large is avoided. Preferably, a linear guide 113 is respectively installed below two through holes of the upper end surface of the C-shaped support panel 112 corresponding to each test station, the water pipe 106 passes through the linear guide 113 so as to freely pass through the through holes, and the linear guide gives directional guidance to the water pipe 106. In addition, a plurality of balls may be axially disposed between the water pipe 106 and the linear guide 113, so that the up-and-down movement of the water pipe 106 in the linear guide 113 is smoother.
Preferably, the frame 101 is formed by welding stainless steel square pipes, and has the advantages of stable structure and difficult deformation; preferably, the periphery of the frame 101 is provided with a waterproof enclosure 103, so that splashing of an aqueous medium during a test is effectively prevented; the lifting cylinder 104 is a high-precision single-rod jacking cylinder. Preferably, each hose 114 is installed in a drag chain 105, and the drag chain 105 is installed on the top of the C-shaped support panel 112, so that the drag chain 105 can not only guide the hoses 114, but also make the equipment routing beautiful and convenient for maintenance.
When the liquid flow test bed 1 is used for testing, a nozzle product 115 to be tested is placed into the lower tool 111, the upper tool 108 descends under the action of the lifting cylinder 104 until the upper tool is attached to the end face of the lower tool 111, so that the nozzle product 115 is sealed therein, and the water medium for testing is prevented from leaking; the water pipe 106 freely passes through a through hole on the upper end surface of the C-shaped support panel 112, so that the movement in the vertical direction is not limited, that is, the water pipe 106 can synchronously realize reciprocating lifting along with the water guide tool 107 under the action of the lifting cylinder 104 through the linear guide rail 113. It can be seen that when a nozzle product 115 is tested, only one lifting cylinder 104, one water guide tool 107, one upper tool 108, one lower tool 111, two sliders 110, two guide rails 109, two water pipes 106, two hoses 114 and two drag chains 105 need to be matched with the nozzle product. In order to improve the efficiency of the liquid flow test, the liquid flow test bed realizes a multi-station parallel test, a plurality of test stations are arranged according to the number of the nozzle products 115, and fig. 3 shows a state when four stations are parallel.
As shown in fig. 5, the water return system 2 includes a water tank 201, a tank body formed by bending a stainless steel sheet, and preferably, in order to facilitate the discharge of an aqueous medium, an included angle between a bottom plate of the water tank 201 and the ground is no more than 8 °; two adjustable feet 202 are arranged at the rear part of the water tank 201, and the front end of the water tank 201 is fixed on the frame 101 of the liquid flow test bed 1, so that the manual repeated pushing and pulling and the maintenance are facilitated; a splash-proof cover plate 203 is arranged at the upper part of the water tank 201 to prevent the water medium from splashing when the flow is too large; the noise reduction grid 205 is installed in the water tank 201 through the grid support 204 to reduce the noise of aqueous medium when the flow is great, and be convenient for the reposition of redundant personnel evacuation of aqueous medium, should fall the noise reduction grid 205 and be the crisscross hollow grid, adopt thick wall stainless steel, have the firm, rust-resistant reliable advantage of intensity.
Preferably, in order to provide safety isolation protection for the flow bench 1, the apparatus of the present invention is equipped with a safety protection system 3 outside the flow bench 1. As shown in fig. 6, safety protection system 3 includes a profile outer frame 301, which is constructed by profiles and has the advantages of simple structure, easy movement and assembly; the transparent acrylic panel 305 is arranged on the outer profile frame 301, so that the safety protection is realized, and the operation condition of equipment can be observed conveniently; the outer frame 301 of the sectional material is fixed with the ground by moving the anchor 303; a cantilever operation screen 302 connected with an upper computer is arranged at the top of the outer profile frame 301 and can be manually operated in multiple degrees of freedom; a three-color warning light 304 is installed on the cantilever operation screen 302 and used for displaying the current state of the device. Can effectively realize the man-machine through safety protection system 3 and keep apart, can also protect personnel's safety when making things convenient for artifical observation device running state.
The working process of the test device of the invention is as follows:
step 1, placing a material tray filled with a nozzle product to be tested in place;
step 3, under the driving action of the lifting cylinder 104, the upper tool 108 is pressed down until the upper tool is tightly attached to the lower tool 111, and the water return system 2 leads the water to the guide tool to carry out a liquid flow test;
step 4, after the nozzle product is tested, putting the nozzle product into a material tray for blanking;
and 5, after all the products to be tested in the material tray are tested, replacing the next material tray filled with the products, and circulating and reciprocating in sequence.
Claims (10)
1. The automatic liquid flow test device for the nozzle is characterized by comprising a liquid flow test bed and a water return system; the liquid flow test bed comprises a frame, a measurement and control cabinet, a C-shaped support panel and a plurality of test stations; the C-shaped supporting panel is arranged on the frame; each test station comprises a lifting cylinder, a water guide tool, an upper tool, a lower tool, two sliding blocks, two guide rails, two water pipes and two hoses; the lifting cylinder is installed at the top of the C-shaped supporting panel, the guide rails are installed on the vertical surface of the C-shaped supporting panel, the water guide tool is T-shaped and is respectively installed on the two guide rails through two symmetrical slide blocks, the water guide tool is fixedly connected with a piston rod of the lifting cylinder, and the water guide tool can move up and down along the vertical direction under the driving of the piston rod of the lifting cylinder; the water guide tool is provided with two water inlets and one water outlet, the lower end of the water outlet is connected with the upper tool, and the bottom surface of the C-shaped support panel is provided with a lower tool which is overlapped with the axis of the corresponding upper tool; the two water inlets are respectively communicated with two water pipes which freely penetrate through holes on the upper end surface of the C-shaped supporting panel, and each water pipe is respectively communicated with a water source through a hose; the water outlet of the lower tool is connected to a water return system through a pipeline; and linear guide rails are respectively arranged below the two through holes on the upper end surface of the C-shaped support panel corresponding to each test station, and the water pipe freely passes through the through holes through the linear guide rails.
2. The nozzle automated fluid flow testing apparatus of claim 1, wherein said fluid flow test rig comprises 4 test stations.
3. The automatic fluid flow testing apparatus for nozzles of claim 1 wherein a plurality of balls are axially disposed between said water tube and said linear guide.
4. The automatic nozzle flow test apparatus of claim 1, wherein a waterproof enclosure is mounted around the frame.
5. The apparatus according to claim 1, wherein each of said hoses is mounted in a drag chain mounted on top of a C-shaped support panel.
6. The automatic nozzle flow testing device of claim 1, wherein the water return system comprises a water tank, and the included angle between the bottom plate of the water tank and the ground is no more than 8 °.
7. The nozzle automatic fluid flow testing apparatus of claim 6, wherein said water chamber is fixed at a front end thereof to a frame of a fluid flow test bed; the splash-proof cover plate is installed on the upper portion of the water tank, and the noise reduction grating is installed in the splash-proof cover plate through the grating support.
8. The automatic nozzle flow test apparatus of claim 1, wherein a safety shield system is mounted externally to said flow test stand.
9. The automatic nozzle flow testing device of claim 8, wherein the safety protection system comprises an outer profile frame, and a transparent acrylic panel is mounted on the outer profile frame.
10. The automatic nozzle flow testing device of claim 9, wherein a cantilever operation screen connected to an upper computer is installed on the top of the outer profile frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111669101.4A CN114414228A (en) | 2021-12-31 | 2021-12-31 | Automatic liquid flow test device for nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111669101.4A CN114414228A (en) | 2021-12-31 | 2021-12-31 | Automatic liquid flow test device for nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114414228A true CN114414228A (en) | 2022-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111669101.4A Pending CN114414228A (en) | 2021-12-31 | 2021-12-31 | Automatic liquid flow test device for nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114414228A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110119373A (en) * | 2010-04-27 | 2011-11-02 | 주식회사 엠엘씨 | Guide apparatus of a water filling nozzle for pressure test |
| 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 |
| CN109632324A (en) * | 2018-12-13 | 2019-04-16 | 西安航天动力研究所 | A kind of experimental rig for nozzle liquid flow test |
-
2021
- 2021-12-31 CN CN202111669101.4A patent/CN114414228A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110119373A (en) * | 2010-04-27 | 2011-11-02 | 주식회사 엠엘씨 | Guide apparatus of a water filling nozzle for pressure test |
| 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 |
| CN109632324A (en) * | 2018-12-13 | 2019-04-16 | 西安航天动力研究所 | A kind of experimental rig for nozzle liquid flow test |
Non-Patent Citations (1)
| Title |
|---|
| 徐丹;梁医;冯虎田;: "滚动直线导轨副综合性能试验台测控系统设计", 机械制造与自动化, vol. 45, no. 02, 30 April 2016 (2016-04-30), pages 202 - 205 * |
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