CN106768946B

CN106768946B - Comprehensive measuring device for radial distribution of fuel nozzle

Info

Publication number: CN106768946B
Application number: CN201611188932.9A
Authority: CN
Inventors: 杨震; 田树川; 龚天翔; 张渝爽
Original assignee: CHENGDU HOLY AVIATION SCIENCE & TECHNOLOGY CO LTD
Current assignee: CHENGDU HOLY AVIATION SCIENCE & TECHNOLOGY CO LTD
Priority date: 2016-12-21
Filing date: 2016-12-21
Publication date: 2023-06-23
Anticipated expiration: 2036-12-21
Also published as: CN106768946A

Abstract

The invention discloses a comprehensive measuring device for radial distribution of fuel nozzles, which comprises a bracket and a cross beam, wherein the cross beam is provided with a distributor, the distributor is provided with a plurality of through holes, the upper end of a base is provided with a support plate, the support plate is provided with a plurality of joints, the joints correspond to the through holes and are connected through hoses, the middle part of the base is rotatably provided with a shaft plate, and a plurality of test tubes are arranged on the shaft plate. The spray nozzles are fixed above the distributor, the positions right below the spray nozzles are divided into a plurality of areas along the radial direction of the distributor from spray peaks, oil in a plurality of areas right in the middle of the distributor is selected to be collected, the graph drawn according to the oil collection amounts in different areas in unit time can reflect atomization performance indexes in the plurality of areas, in the range of a mist boundary formed by the spray nozzles on the distributor, the mist amount collected by test tubes in the area is the most stable, the oil amount is not influenced by residual mist on the distributor, and further the accuracy of a fuel nozzle radial distribution test result is improved.

Description

Comprehensive measuring device for radial distribution of fuel nozzle

Technical Field

The invention relates to the field of fuel nozzle tests, in particular to a comprehensive measurement device for radial distribution of fuel nozzles.

Background

The fuel nozzle belongs to the technical field of engines, and comprises a cavity, an oil valve and a nozzle cap, when the fuel pressure in an oil cavity is higher than a preset value, the oil valve is opened, fuel is sprayed out through the nozzle cap, the oil valve consists of a valve body, a valve seat and a spring, the rear end of the valve seat is connected with the cavity to form the oil cavity, the cavity is provided with an inlet channel for entering the oil cavity, the spring is positioned in the oil cavity and acts on the valve body and the valve seat to enable the oil valve to be closed, the front end of the valve seat is connected with the nozzle cap to form a residual volume, and the nozzle cap is provided with a spray hole connected with the residual volume. The atomization performance of the fuel nozzle directly influences the working stability of the combustion chamber of the engine, and the distribution condition of the fuel spray along the radial direction influences the uniformity of combustion in the combustion chamber and the uniformity of the temperature distribution of the local outlet. In the test of radial distribution, a baffle plate is used for covering a collecting device before formal measurement, and the baffle plate is removed after the flow and the pressure are stabilized, so that oil liquid starts to be collected. The traditional mode of using the baffle, because before removing the baffle and collecting fluid, fluid sprays and can form a large amount of fog on the baffle, if the fog is got rid of to the stronger convulsions that adopts can influence the fog shape of spraying and influence the test of degree of consistency, and does not adopt the remaining fog of powerful convulsions to influence the later reading, finally leads to the accuracy of test result not high.

Disclosure of Invention

The invention aims to provide a comprehensive measurement device for radial distribution of a fuel nozzle, which solves the problem of improving the accuracy of a radial distribution test result of the fuel nozzle.

The invention is realized by the following technical scheme:

the utility model provides a radial distribution integrated measurement device of fuel nozzle, includes the support, sets up the crossbeam on the support be equipped with convex distributor on the crossbeam it has a plurality of through-holes to open on the distributor, still includes the base, is equipped with the extension board on the base, and is equipped with a plurality of joints that distribute side by side on the extension board, connects corresponding and through hose connection with the through-hole, rotates at the base middle part and is provided with the arbor, install a plurality of with connect the test tube that corresponds on the arbor. When detecting the fuel nozzle, the existing detection equipment shields the collecting device by using a baffle plate before measurement, and removes the baffle plate after the flow and the pressure are stable, so that before oil is collected, a large amount of mist is formed on the baffle plate by the oil, the difficulty of exhausting the large amount of mist is high, and the oil collection amount is ensured to be consistent with the accuracy of the test on the premise of completely removing the mist; the inventor designs and researches a comprehensive measurement device for radial distribution of a fuel nozzle aiming at the defects, the nozzle is fixed right above a distributor, the arc-shaped distributor is utilized to ensure that the right lower part of the nozzle is divided into a plurality of areas along the radial direction of the distributor from a spray vertex, oil in a plurality of areas right in the middle of the distributor is selected to be collected, and according to graphs drawn according to oil collection amounts in different areas in unit time, atomization performance indexes in the plurality of areas can be reflected, in a mist boundary formed by the nozzle on the distributor, the mist quantity in the middle of the distributor enters a collection assembly to be the most stable, namely, the oil quantity collected by the collection assembly in unit time is not influenced by residual mist on the distributor, and further the accuracy of a radial distribution test result of the fuel nozzle is improved.

When the oil spraying device is specifically used, the nozzle is firstly centered with the distributor, then oil is injected into the nozzle, conical fog is formed on the distributor after the oil passes through the nozzle, the conical fog is covered on the distributor to form a fog liquid area, a plurality of through holes are formed in the distributor along the radial direction of the circle of the distributor, the fog enters the connector through the through holes and finally falls into a test tube opposite to the connector, the collection of the oil in a plurality of test tubes is realized through the rotating shaft plate, and the collection and measurement of the oil liquid amount in the test tube are realized.

The support is also provided with a cross rod, the mounting rod is rotatably arranged at the tail end of the cross rod, and the nozzle is fixed on the mounting rod through the mounting assembly. The nozzle is generally fixed above the distributor through the clamp, and in the uniformity test of the nozzle, after the initial position of the nozzle is measured, the nozzle is required to be rotated by 90 degrees relative to the initial position, then the radial distribution condition of oil in the nozzle is measured, at the moment, the clamp is rotated, the rotation angles of the clamp and the nozzle cannot be guaranteed to meet the requirement of 90 degrees, and the accuracy of a measurement result is lower; the inventor sets up the horizontal pole on the support to this kind of defect, and the nozzle passes through the installation component to be fixed on rotating the installation pole that sets up and the horizontal pole is terminal, and installation component and measuring device become a whole this moment, and further, set up the circular calibrated scale on the horizontal pole, can carry out 90 rotations to the installation pole according to the test requirement promptly, then can guarantee that the rotation angle of installation component and nozzle and the rotation angle of test requirement accords with completely to improve the radial distribution measuring precision of nozzle fluid.

A blind hole is formed in the base, a plurality of grooves are formed in the outer circumferential wall of the shaft plate, and one end of the spring is fixed on the blind hole

The bottom of the hole, the other end of the spring is connected with a stop pin matched with the groove, and the end part of the stop pin partially protrudes out of the blind hole. When collecting the fluid through the distributor, open on the base has the through-hole, the movable penetration of locating plate through-hole just can realize free rotation, open a plurality of blind holes on the through-hole inner wall, and open on the locating plate have a plurality of recess with blind hole matched with, the blind hole internal fixation has the spring, and spring end-to-end connection has the backing pin, the tip part of backing pin is outstanding in the blind hole, the locating pin is in initial position state, when the locating plate is in the state of holding pin and recess cooperation, make the locating plate unable free movement, and after the fluid is collected, the application of force rotation axis board, make and realize slick and sly transition and produce relative displacement between backing pin and the recess, after the backing pin gets into the blind hole completely, the locating plate drives the test tube and begins the slope at this moment, the backing pin is locked again with the second recess on the locating plate's the outer wall, so that the staff carries out fluid collection to the test tube of distributing side by side, the backing plate makes it to the initial position to resume, in order to conveniently measure the nozzle secondary.

The mounting assembly comprises a mounting plate arranged on a mounting rod, and the middle part of the pressing plate is hinged with the mounting plate through a hinge

And a protrusion opposite to the end part of one end of the pressing plate is arranged on the mounting plate, a compression nut in threaded fit with the protrusion is arranged on the protrusion, one end of the pressing plate is forced to move by rotating the compression nut, and the other end of the pressing plate compresses the nozzle on the mounting plate. Utilize the lever structure that clamp plate, hinge and mounting panel three formed, rotate gland nut for the one end of clamp plate removes, and the clamp plate other end compresses tightly the nozzle on the mounting panel, so, directly abandon when measuring and use outside anchor clamps to carry out the centre gripping fixed to the nozzle, realize fixed, regulation and the measurement integration operation to the nozzle, improved the detection efficiency of nozzle greatly.

The centering assembly comprises a positioning core sleeve arranged on the mounting plate, a cavity with one end open is formed in the positioning core sleeve, a positioning shaft with the axis coincident with the axis of the nozzle exit is arranged in the cavity in a sliding mode, the lower end of the positioning shaft is opposite to the central line of the distributor, a threaded through hole communicated with the cavity is formed in the side wall of the positioning core sleeve, and a screw is matched with the threaded through hole. In the transposition measurement process of the nozzle, after the nozzle rotates 90 degrees relative to the initial position of the nozzle, dislocation occurs in the process that the axis of the nozzle outlet and the central line of the distributor easily rotate downwards at the moment, namely the nozzle and the distributor are not aligned, so that larger deviation occurs in the oil liquid collection amount in the boundary line of the mist and the liquid, and the measurement accuracy of the nozzle is further affected; the inventor sets up the centering subassembly on the mounting panel to guarantee that the axis of its exit opening remains coincident with the central line of distributor all the time after the nozzle rotates, and during the specific use, the centering subassembly includes locating core cover and the locating shaft that slides and set up in locating core cover, is equipped with the screw on locating core cover, can realize the removal or the fixed of locating shaft through adjusting screw, and the terminal of locating shaft then with the central line centering of distributor, guarantee that the axis of exit opening of nozzle, the axis of locating shaft and the central line coincidence of distributor promptly, in order to guarantee to rotate 90 fore-and-aft nozzle and keep centering with the distributor.

The device also comprises an adjusting clamp A arranged on the bracket, and the cross beam is fixed on the adjusting clamp A. Preferably, the cross beam is fixed to the support by means of an adjustment clamp A, and after the fixed height of the nozzle is determined, the adjustment clamp A is moved to maintain the distance between the nozzle and the distributor at a proper level, namely, the conical mist formed at the outlet of the nozzle is ensured to cover most of the distributor, so that the oil liquid in the mist boundary area of the distributor is completely collected during measurement.

And a first locating clamp is arranged on the bracket, and the upper end of the first locating clamp is contacted with the lower end of the adjusting clamp A. Preferably, in the process of adjusting the position of the cross beam, after the adjusting clamp A loosens, an external force is required to ensure that the cross beam maintains the stability of the horizontal position and avoid the rotation of the distributor in the horizontal direction.

The device also comprises an adjusting clamp B arranged on the bracket, and the cross rod is fixed on the adjusting clamp B. Preferably, the cross bar is secured to the support by means of an adjustment clip B which is moved to maintain the spacing between the nozzle and the distributor at a suitable level, i.e. to ensure that the cone-shaped mist formed at the nozzle outlet covers a substantial part of the distributor, so that the oil in the region of the mist boundary of the distributor is fully collected during the measurement.

And a second locating clamp is arranged on the bracket, and the upper end of the second locating clamp is contacted with the lower end of the adjusting clamp B. Preferably, in the process of adjusting the position of the cross rod, after the adjusting clamp B loosens, an external force is required to be applied to ensure that the cross rod maintains the stability of the horizontal position and avoid the nozzle from rotating horizontally.

Compared with the prior art, the invention has the following advantages and beneficial effects:

1. according to the comprehensive measurement device for radial distribution of the fuel nozzles, provided by the invention, according to the graph drawn according to the oil liquid collection amounts in different areas in unit time, atomization performance indexes in a plurality of areas can be reflected, and in a mist-liquid boundary formed on a distributor by the nozzles, the mist liquid amount entering a collection assembly from a plurality of through holes in the middle of the distributor is most stable, namely, the oil liquid amount collected by the collection assembly in unit time is not influenced by residual mist on the distributor, so that the accuracy of a radial distribution test result of the fuel nozzles is improved;

2. according to the comprehensive measuring device for radial distribution of the fuel nozzles, after oil is collected, the rotating shaft plate is forced, smooth transition is realized between the baffle pin and the grooves, relative displacement is generated, after the baffle pin completely enters the blind holes, the shaft plate drives the test tubes to start to incline, at the moment, the baffle pin is matched with the second grooves on the outer walls of the shaft plate, namely, the positions of the shaft plate are locked again, so that workers can conveniently collect the oil from the test tubes distributed side by side, and the rotating shaft plate is restored to the initial position, so that the nozzles can be measured for the second time conveniently;

3. according to the comprehensive measuring device for the radial distribution of the fuel nozzles, disclosed by the invention, the lever structure formed by the pressing plate, the hinge and the mounting plate is utilized, the compression nut is rotated, so that one end of the pressing plate moves, and the nozzles are compressed on the mounting plate by the other end of the pressing plate, so that the nozzles are directly abandoned to be clamped and fixed by using an external clamp during measurement, the fixing, adjusting and measuring integrated operation of the nozzles is realized, and the detection efficiency of the nozzles is greatly improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic structural view of a nozzle mounting assembly;

FIG. 3 is a schematic structural view of a nozzle centering assembly;

FIG. 4 is a schematic view of the structure of the collection assembly;

FIG. 5 is a schematic diagram of a distributor;

fig. 6 is a schematic diagram of spray testing of a nozzle.

In the drawings, the reference numerals and corresponding part names:

1-bottom plate, 2-bracket, 3-beam, 4-positioning clip one, 5-adjusting clip A, 6-beam, 7-adjusting clip B, 8-nozzle, 9-mounting plate, 10-mounting bar, 11-press plate, 12-hinge, 13-mandrel, 14-press nut, 15-centering assembly, 151-positioning core sleeve, 152-positioning shaft, 153-screw, 16-distributor, 17-support plate, 18-joint, 19-upper plate, 20-spring, 21-stop pin, 22-shaft plate, 23-test tube, 24-lower plate, 25-through hole, 26-mist boundary line, 27-positioning clip two.

Detailed Description

For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present invention and the descriptions thereof are for illustrating the present invention only and are not to be construed as limiting the present invention.

Example 1

As shown in fig. 1, 5 and 6, the present embodiment includes a bracket 2, a beam 3 disposed on the bracket 2, a circular arc distributor 16 disposed on the beam 3, a plurality of through holes 25 formed on the distributor 16, a base, a support plate 17 disposed on the upper end of the base, a plurality of connectors 18 disposed side by side on the support plate 17, the connectors 18 corresponding to the through holes 25 and connected by hoses, a shaft plate 22 rotatably disposed in the middle of the base, and a plurality of test tubes 23 corresponding to the connectors 18 mounted on the shaft plate 22. When the fuel nozzle 8 is detected, the existing detection equipment shields the collecting device by using a baffle plate before measurement, and the baffle plate is removed after the flow and the pressure are stable, so that before the oil is collected, a large amount of mist is formed on the baffle plate by the oil, the difficulty of exhausting the large amount of mist is high, and the oil collection amount is ensured to be consistent with the accuracy of the test on the premise of completely removing the mist; the inventor designs and researches a comprehensive measurement device for radial distribution of a fuel nozzle 8 aiming at the defects, the nozzle 8 is fixed right above a distributor 16, the arc-shaped distributor 16 is utilized to ensure that the right lower part of the nozzle 8 is divided into a plurality of areas along the radial direction of the distributor 16 from a spray peak, oil in a plurality of areas right in the middle of the distributor 16 is selected to be collected, according to a graph drawn according to oil collection amounts in different areas in unit time, atomization performance indexes in the plurality of areas can be reflected, in a mist-liquid boundary 26 formed on the distributor 16 by the nozzle 8, the liquid quantity of mist entering a collection assembly from a plurality of through holes 25 right in the middle of the distributor 16 is the most stable, namely, the liquid quantity collected by the collection assembly in unit time is not influenced by residual mist on the distributor 16, and further the accuracy of radial distribution test results of the fuel nozzle 8 is improved;

in specific use, the nozzle 8 is first centered with the distributor 16, then oil is injected into the nozzle 8, and the oil is sprayed

After the nozzle 8, cone-shaped fog is formed on the distributor 16, the cone-shaped fog covers the distributor 16 to form a fog liquid area, a plurality of through holes 25 are formed in the distributor 16 along the radial direction of the circle where the distributor 16 is located, the fog enters the joint 18 after passing through the through holes 25 and finally falls into a test tube 23 which is opposite to the joint 18, oil liquid in the test tube 23 is collected through a rotating shaft plate 22, and the oil liquid in the test tube 23 is collected and measured.

Preferably, the cross beam 3 is fixed to the support 2 by means of the adjusting clamp A5, and after the fixed height of the nozzle 8 is determined, the adjusting clamp A5 is moved to maintain the distance between the nozzle 8 and the distributor 16 at a proper level, i.e. to ensure that the conical mist formed at the outlet of the nozzle 8 covers most of the distributor 16, so that the oil in the mist boundary area of the distributor 16 is completely collected during measurement.

Preferably, in the process of adjusting the position of the cross beam 3, after the adjusting clamp A5 is loosened, an external force is required to ensure that the cross beam 3 maintains the stability of the horizontal position and avoid the rotation of the distributor 16 in the horizontal direction, in the invention, the first locating clamp 4 is fixed at the lower end of the adjusting clamp A5, and when the adjusting clamp A5 is adjusted, the first locating clamp 4 provides support for the adjusting clamp A5 and simultaneously positions the position of the adjusting clamp A5 on the bracket 2 so as to ensure that the interval between the distributor 16 and the nozzle 8 on the cross beam 3 is kept at a proper position.

Example 2

As shown in fig. 1 and 2, the cross bar 6 is further provided on the bracket 2 in this embodiment, the mounting bar 10 is rotatably provided at the end of the cross bar 6, and the nozzle 8 is fixed to the mounting bar 10 by a mounting assembly. The nozzle 8 is generally fixed above the distributor 16 through a clamp, and in the uniformity test of the nozzle 8, after the initial position of the nozzle 8 is usually measured, the nozzle 8 needs to be rotated by 90 degrees relative to the initial position, then the radial distribution condition of the oil in the nozzle 8 is measured, at this time, the clamp is rotated, the rotation angles of the clamp and the nozzle 8 cannot be guaranteed to meet the requirement of 90 degrees, and the accuracy of the measurement result is lower; the inventor sets up horizontal pole 6 on support 2 to this kind of defect, and nozzle 8 passes through the installation component to be fixed on the installation pole 10 that rotates setting and horizontal pole 6 terminal, and installation component and measuring device become a whole this moment, and further, set up circular calibrated scale on horizontal pole 6, can carry out 90 rotation to installation pole 10 according to the test requirement promptly, then can guarantee that the rotation angle of installation component and nozzle 8 accords with the rotation angle of test requirement completely to improve the measuring precision of nozzle 8 fluid radial distribution.

The installation assembly comprises an installation plate 9 arranged on an installation rod 10, the middle part of a pressing plate 11 is hinged on the installation plate 9 through a hinge 12, a protrusion opposite to the end part of one end of the pressing plate 11 is arranged on the installation plate 9, a compression nut 14 in threaded fit with the protrusion is arranged on the protrusion, one end of the pressing plate 11 is forced to move by rotating the compression nut 14, and the other end of the pressing plate 11 compresses the nozzle 8 on the installation plate 9. The lever structure formed by the pressing plate 11, the hinge 12 and the mounting plate 9 is utilized, the compression nut 14 is rotated, one end of the pressing plate 11 moves, the other end of the pressing plate 11 compresses the nozzle 8 on the mounting plate 9, and therefore, the external clamp is directly abandoned to clamp and fix the nozzle 8 during measurement, the fixing, adjusting and measuring integrated operation of the nozzle 8 is realized, and the detection efficiency of the nozzle 8 is greatly improved. Further, a mandrel 13 is arranged on the mounting plate 9, and the pressing plate 11 is hinged with the end part of the mandrel 13 through a hinge 12, namely, the distance between the pressing plate 11 and the mounting plate 9 is increased by utilizing the height of the mandrel 13, so that the nozzle 8 can be conveniently taken and placed.

Preferably, the cross bar 6 is fixed to the support 2 by means of an adjustment clamp B7, and the adjustment clamp B7 is moved to maintain the distance between the nozzle 8 and the distributor 16 at a suitable level, i.e. to ensure that the conical mist formed at the outlet of the nozzle 8 covers a substantial part of the distributor 16, so that the oil in the mist boundary area of the distributor 16 is completely collected during measurement.

Preferably, in the process of adjusting the position of the cross bar 6, after the adjusting clamp B7 is loosened, an external force is required to ensure that the cross bar 6 maintains the stability of the horizontal position and avoid the nozzle 8 from rotating horizontally, in the invention, the second positioning clamp 27 is fixed at the lower end of the adjusting clamp B7, and when the adjusting clamp B7 is adjusted, the second positioning clamp 27 provides support for the adjusting clamp B7 and simultaneously positions the position of the adjusting clamp B7 on the bracket 2 so as to ensure that the interval between the distributor 16 on the cross bar 3 and the nozzle 8 is kept at a proper position.

Example 3

As shown in fig. 4, in this embodiment, a blind hole is formed in the base, a plurality of grooves are formed in the outer circumferential wall of the shaft plate 22, one end of the spring 20 is fixed at the bottom of the blind hole, the other end of the spring 20 is connected with a stop pin 21 matched with the grooves, and the end part of the stop pin 21 partially protrudes out of the blind hole. When collecting the fluid that passes through the distributor 16, open on the base has the through-hole 25, and the movable run-through of axle board 22 through-hole 25 just can realize free rotation, open on the through-hole 25 inner wall has a plurality of blind holes, and open on the axle board 22 has a plurality of recess with blind hole matched with, the blind hole internal fixation has spring 20, and spring 20 end-to-end connection has the backing pin 21, the tip part of backing pin 21 outstanding in the blind hole, when axle board 22 is in initial position state, backing pin 21 and recess cooperation, make axle board 22 unable free movement, and after the fluid is collected, the application of force rotation axle board 22, make smooth transition and produce relative displacement between backing pin 21 and the recess, after the backing pin 21 gets into the blind hole completely, axle board 22 drives test tube 23 and begins the slope, the backing pin 21 and the second recess cooperation on the outer wall of axle board 22 this moment, namely the position of axle board 22 is locked again, so that the staff carries out the fluid collection to the test tube 23 of distributing side by side, it returns to initial position to the rotation axle 22 again, in order to conveniently measure nozzle 8 secondary.

Further, the base includes an upper plate 19 and a lower plate 24, the lower end surface of the upper plate 19 and the upper end surface of the lower plate 24 are provided with semicircular clamping grooves, the plate is connected with the lower plate 24 by bolts, the two clamping grooves are combined to form a through hole 25, and the blind hole is arranged in the clamping groove on the upper plate 19. The lower plate body 24 is connected with the bracket 2 through the bottom plate 1, so that the fixed installation and detection of the nozzle 8 and the collection of the oil of the nozzle 8 are integrated into an integral structure, the collection of the oil from the installation of the nozzle 8 is met, the device is simple in structure, high in manufacturing and processing performance and convenient to operate.

Example 4

As shown in fig. 3, the present embodiment further includes a centering assembly 15, where the centering assembly 15 includes a positioning core sleeve 151 disposed on the mounting plate 9, a cavity with one open end is opened on the positioning core sleeve 151, a positioning shaft 152 with an axis coincident with the axis of the exit of the nozzle 8 is slidably disposed in the cavity, the lower end of the positioning shaft 152 faces the center line of the distributor 16, a threaded through hole 25 communicating with the cavity is opened on a side wall of the positioning core sleeve 151, and a screw 153 is matched with the threaded through hole 25. In the transposition measurement process of the nozzle 8, after the nozzle 8 rotates 90 degrees relative to the initial position, the axis of the nozzle 8 outlet and the central line of the distributor 16 are easily dislocated in the downward rotation process, namely the nozzle 8 and the distributor 16 are not aligned, so that larger deviation appears on the oil liquid collection amount in the boundary line of the mist and the liquid, and the measurement accuracy of the nozzle 8 is further affected;

the inventor sets up centering subassembly 15 on mounting panel 9 to guarantee that the axis of nozzle 8 its exit port remains coincident with the central line of distributor 16 all the time after rotating, and in particular use, centering subassembly 15 includes location core cover 151 and slide setting in the location core cover 151 location axle 152, is equipped with screw 153 on location core cover 151, can realize the removal or the fixed of location axle 152 through adjusting screw 153, and the terminal of location axle 152 then with the central line of distributor 16 centering, namely guarantee that the axis of nozzle 8's exit port, the axis of location axle 152 and the central line of distributor 16 coincide, in order to guarantee that nozzle 8 remains centered with distributor 16 around rotating 90 °.

The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims

1. The utility model provides a radial distribution comprehensive measurement device of fuel nozzle, includes support (2), sets up crossbeam (3) on support (2), its characterized in that: be provided with on support (2) and adjust clamp A (5), crossbeam (3) are fixed on adjusting clamp A (5) install on support (2) and press from both sides one (4) the locating clamp, one (4) upper end with the lower extreme contact of adjusting clamp A (5) still includes and sets up adjusting clamp B (7) on support (2), be fixed with horizontal pole (6) on adjusting clamp B (7), install on support (2) and press from both sides two (27) locating clamp, two (27) upper ends with the lower extreme contact of adjusting clamp B (7) be equipped with convex distributor (16) on crossbeam (3) it has a plurality of through-holes (25) to open on distributor (16), still include the base, be equipped with extension board (17) on the base upper end, and be equipped with a plurality of joints (18) of distributing side by side on extension board (17), joint (18) are corresponding and through hose connection with through-hole (25), rotate at base middle part and are provided with axle board (22), install a plurality of joints (23) on axle (22).

2. The fuel nozzle radial distribution integrated measuring device according to claim 1, wherein: the support (2) is also provided with a cross rod (6), the mounting rod (10) is rotatably arranged at the tail end of the cross rod (6), and the nozzle (8) is fixed on the mounting rod (10) through a mounting assembly.

3. The fuel nozzle radial distribution integrated measuring device according to claim 1 or 2, characterized in that: a blind hole is formed in the base, a plurality of grooves are formed in the outer circumferential wall of the shaft plate (22), one end of the spring (20) is fixed at the bottom of the blind hole, the other end of the spring (20) is connected with a stop pin (21) matched with the grooves, and the end part of the stop pin (21) partially protrudes out of the blind hole.

4. The fuel nozzle radial distribution integrated measuring device according to claim 2, wherein: the mounting assembly comprises a mounting plate (9) arranged on a mounting rod (10), the middle part of a pressing plate (11) is hinged on the mounting plate (9) through a hinge (12), a protrusion opposite to the end part of one end of the pressing plate (11) is arranged on the mounting plate (9), a compression nut (14) in threaded fit with the protrusion is arranged on the protrusion, one end of the pressing plate (11) is forced to move by rotating the compression nut (14), and the other end of the pressing plate (11) compresses a nozzle (8) on the mounting plate (9).

5. The fuel nozzle radial distribution integrated measuring device according to claim 4, wherein: the automatic centering device is characterized by further comprising a centering assembly (15), wherein the centering assembly (15) comprises a positioning core sleeve (151) arranged on the mounting plate (9), a cavity with one end open is formed in the positioning core sleeve (151), a positioning shaft (152) with the axis coincident with the axis of the exit of the nozzle (8) is arranged in the cavity in a sliding mode, the lower end of the positioning shaft (152) is opposite to the center line of the distributor (16), a threaded through hole communicated with the cavity is formed in the side wall of the positioning core sleeve (151), and a screw (153) is matched with the threaded through hole.