CN209841389U - Splitter ring icing test bed and splitter ring model fixing device thereof - Google Patents
Splitter ring icing test bed and splitter ring model fixing device thereof Download PDFInfo
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- CN209841389U CN209841389U CN201920914285.8U CN201920914285U CN209841389U CN 209841389 U CN209841389 U CN 209841389U CN 201920914285 U CN201920914285 U CN 201920914285U CN 209841389 U CN209841389 U CN 209841389U
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Abstract
An object of the utility model is to provide a reposition of redundant personnel ring model fixing device, it can realize carrying out multiple relevant icing test to the reposition of redundant personnel ring model. Another object of the utility model is to provide a reposition of redundant personnel ring icing test bench, it includes aforementioned reposition of redundant personnel ring model fixing device. To achieve the foregoing object, a diverter ring mold fixture includes: the fixing component is used for fixing the shunt ring model and provided with a reference surface; and the lower part of the bracket component is fixedly connected with a rotatable turntable, the upper part of the bracket component is connected with the fixed component through a rotating shaft component, and the fixed component can rotate around the rotating shaft component. The bracket assembly and the rotary table are coaxial, the yaw angle of the shunt ring model is adjusted by rotating the rotary table, the pitch angle of the shunt ring model is adjusted by rotating the fixing assembly, and the included angle between the reference plane and the horizontal plane is equal to the pitch angle.
Description
Technical Field
The utility model relates to a splitter ring icing test bench and splitter ring model fixing device thereof.
Background
Civil aircraft engines are very sensitive to icing and very easily cause danger. Once the engine air intake system freezes, can change the aerodynamic characteristic of air intake system, increase the gas flow resistance, cause the inlet flow field to distribute unevenly, the light person takes place the air current distortion, influences the job stabilization nature of engine, in the serious case, probably leads to the fact the flame-out to shut down, causes fatal consequence.
In order to show the conformity of the design of the engine anti-icing system to the airworthiness provision CCAR33.68, the engine anti-icing system needs to be subjected to the work of design requirement analysis, anti-icing calculation analysis, wind tunnel test, ground bench test, flight test and the like. Aiming at the icing conditions of the booster stage of the compressor of the civil aircraft engine in different environments, an icing test needs to be carried out on a fan booster stage splitter ring test piece, and thermodynamic, aerodynamic and hydrodynamic analysis is carried out on the fan booster stage splitter ring test piece. The test piece of the shunting ring is tested and data is recorded under the environments with different temperatures and different liquid water contents, and simulation parameters comprise wind speed, attack angle, height, temperature, water drop diameter, liquid water content, icing time and the like.
Therefore, a test device for the fan supercharging stage splitter ring of the aircraft engine is needed to be provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a reposition of redundant personnel ring model fixing device, it can realize carrying out multiple relevant icing test to the reposition of redundant personnel ring model.
Another object of the utility model is to provide a reposition of redundant personnel ring icing test bench, it includes aforementioned reposition of redundant personnel ring model fixing device.
To achieve the foregoing object, a diverter ring mold fixture includes:
the fixing assembly is used for fixing the shunt ring model and is provided with a reference surface; and the number of the first and second groups,
the lower part of the bracket component is fixedly connected with a rotatable turntable, the upper part of the bracket component is connected with the fixed component through a rotating shaft component, and the fixed component can rotate around the rotating shaft component;
the bracket component and the rotary table are the same in rotation shaft, the rotary table is rotated to adjust the yaw angle of the shunt ring model, the fixed component is rotated to adjust the pitch angle of the shunt ring model, and the included angle between the reference plane and the horizontal plane is equal to the pitch angle.
In one or more embodiments, the bracket component includes two branches, fixed subassembly includes and sets up respectively the circular arc support piece of two branches upper ends, two circular arc support piece's one end respectively with two branches are connected, have the breach between the other end, the reposition of redundant personnel ring model is fixed in the breach.
In one or more embodiments, the circular arc support has a groove formed in an outer peripheral surface of the other end, the groove has a fixing member therein, an end face of the shunt ring mold has a hole allowing at least a portion of the fixing member to enter, and the shunt ring mold is fixed in the notch by the fixing member in cooperation with the hole.
In one or more embodiments, the fastener is a bolt and the hole is a threaded hole.
In one or more embodiments, the one end of the arc support has a connecting plate, the connecting plate is connected with the support rod through a fastener, and the fastener is the rotating shaft member;
wherein the fastener is loosened to allow the fixing assembly to be rotatable on the bracket assembly.
In one or more embodiments, the reference surface is an end surface of the one end.
In one or more embodiments, the splitter ring model is an arc segment of the engine supercharging stage splitter ring divided by an angle of 30 degrees, and the arc segment is connected with the two arc supports to form a semicircle.
In one or more embodiments, the end face of the other end of the circular arc support has a cross section which is the same as the cross section of the two sides of the shunt ring model.
The splitter ring icing test bed for achieving the other purpose comprises main test section equipment, wherein the main test section equipment is provided with a turntable driving device and is characterized by further comprising the splitter ring model fixing device;
wherein, the carousel with carousel drive arrangement transmission is connected.
In one or more embodiments, the test stand is used for wind tunnel testing.
The beneficial effects of the utility model reside in that:
through this splitter ring model fixing device for the splitter ring model can freely change pitch angle and yaw angle in the experiment, thereby can simulate the splitter ring that is in different positions in splitter ring icing test, and test the law of freezing and the condition of freezing of splitter ring in different positions, in order to reduce the risk that the large tracts of land freezes in the civil turbofan engine.
Drawings
The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which:
fig. 1 illustrates a perspective view of one embodiment of a diverter ring model fixture;
fig. 2 is a perspective view of a diverter ring mold assembly.
Detailed Description
The following discloses many different embodiments or examples for implementing the subject technology described. Specific examples of components and arrangements are described below to simplify the present disclosure, but these are merely examples and are not intended to limit the scope of the present disclosure. For example, if a first feature is formed over or on a second feature described later in the specification, this may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features are formed between the first and second features, such that the first and second features may not be in direct contact. Additionally, reference numerals and/or letters may be repeated among the various examples throughout this disclosure. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. Further, when a first element is described as being coupled or coupled to a second element, the description includes embodiments in which the first and second elements are directly coupled or coupled to each other, as well as embodiments in which one or more additional intervening elements are added to indirectly couple or couple the first and second elements to each other.
It should be noted that, where used, the following description of upper, lower, left, right, front, rear, top, bottom, positive, negative, clockwise, and counterclockwise are used for convenience only and do not imply any particular fixed orientation. In fact, they are used to reflect the relative position and/or orientation between the various parts of the object.
Pitch angle and yaw angle in the embodiments described later are aircraft attitude angles referred to in the industry, and represent angular relationships between a body coordinate system and a geographic coordinate system.
Fig. 1 is a perspective view of one embodiment of a diverter ring mold fixture, and fig. 2 is a perspective view of a diverter ring mold part. The shunt ring model fixing device comprises a fixing component 1 and a bracket component 2. Wherein the mounting assembly 1 is used to mount a diverter ring mold 9 as shown in fig. 2 in a diverter ring mold fixture having a datum surface 10. The lower part of the bracket component 2 is fixedly connected with a rotatable turntable 3, the turntable 3 is provided with a central shaft u, and the bracket component 2 and the turntable 3 are configured to be fixedly connected, and the bracket component 2 and the turntable 3 rotate around the same rotating shaft of the central shaft u. The upper part of the bracket component 2 is connected with the fixed component 1 through a rotating shaft component 11, and the fixed component 1 can rotate around the rotating shaft component 11.
When the shunt ring model 9 is fixed in the shunt ring model fixing device as shown in fig. 2, the entire shunt ring model fixing device can be driven to rotate along the direction y shown in the figure by rotating the turntable 3 with the central axis u of the turntable 3 as the rotating axis, so as to adjust the yaw angle of the shunt ring model 9. The pitch angle of the diverter ring model 9 can be adjusted by rotating the fixing assembly 1 so that it rotates in the direction p shown in the figure, which is the direction b of extension of the rotating shaft member 11 as the axis of rotation. Because the included angle between the reference surface 10 and the horizontal plane is equal to the pitch angle of the shunt ring model 9, the pitch angle of the shunt ring model 9 at the corresponding position can be measured by measuring the inclination angle between the reference surface 10 and the horizontal plane through a level meter.
Through this splitter ring model fixing device for splitter ring model 9 can freely change pitch angle and yaw angle in the experiment, thereby can simulate the splitter ring that is in different positions in splitter ring icing test, and test the law of freezing and the condition of freezing of different positions splitter ring, in order to reduce the risk that the large tracts of land freezes in the civil turbofan engine.
While one embodiment of the present split ring pattern retainer is described above, other embodiments of the present split ring pattern retainer can have many more details than the above-described embodiments, and at least some of these details can vary widely. At least some of these details and variations are described below in several embodiments.
With continued reference to fig. 1 to 2, in an embodiment of the device for fixing a shunt ring model, the bracket assembly 2 includes two support rods 21, the fixing assembly 1 includes arc support members 12 respectively disposed at upper ends of the two support rods 21, one end 120 of each of the two arc support members 12 is connected to the two support rods 21, a gap 13 is formed between the other ends 121, and the shunt ring model 9 is fixed in the gap 13. Further, the bracket assembly 2 further includes a bottom plate 22, the two support rods 21 are respectively disposed on two sides of the bottom plate 22, and the bottom plate 22 is fixedly connected to the rotary plate 3 through a fastening member such as a bolt.
In one embodiment of the shunt ring model fixing device, the circular arc support 12 is provided with a groove 122 on the outer peripheral surface of the other end 121, the groove 122 is provided with a fixing member 123 therein, the end surface of the shunt ring model 9 is provided with a hole 90 allowing at least a part of the fixing member 123 to enter, and the shunt ring model 9 is fixed in the notch 13 by the fixing member 123 and the hole 90 in a matching manner. In one embodiment, the fixing member 123 is a bolt, the hole 90 is a threaded hole, and the shunt ring model 9 is fixed in the gap 13 by screwing the bolt into the threaded hole, so that the shunt ring model 9 is convenient to detach and install in the fixing device, and multiple tests can be performed on shunt ring model parts with different configurations, wherein the shunt ring model parts with different configurations have the same or similar appearance structures. In another embodiment, the fixing member 123 may be a pin, and the shunt ring model 9 is fixed in the notch 13 by inserting the pin into a hole of the shunt ring model 9. In one embodiment, the slots 122 are opened on the outer circumferential side wall 121a and the inner circumferential side wall 121b of the arc support 12 at the other end 121, respectively.
In one embodiment of the split ring model fixture, the circular arc support member 12 has a connecting plate 124 at one end 120, and the connecting plate 124 is connected to the two support rods 21 by fasteners such as bolts, wherein the fasteners may be the rotating shaft member 11 as described above. By loosening the fastener, the fixing assembly 1 can be allowed to turn on the bracket assembly 2 and to the pitch angle required for the test, and then tightening the fastener so that the fixing assembly fixes the shunt ring model 9 at the corresponding pitch angle.
In one embodiment of the diverter ring mold fixture, the datum surface 10 is an end surface of one end 120 of the arcuate support 12.
In one embodiment of the diverter ring model fixing device, the diverter ring model 9 is a circular arc segment which is divided by an angle of 30 degrees for the engine supercharging stage diverter ring, and the circular arc segment is fixedly connected with the two circular arc supporting pieces 12 to form a semicircle as shown in the figure.
In one embodiment of the device for fixing the model of the diverter ring, the end surface of the other end 121 of the circular arc support 12 has a cross section same as the cross section of the two sides of the model of the diverter ring 9, and when the device is fixedly connected, the cross sections of the two sides of the model of the diverter ring 9 are respectively contacted with the end surfaces of the other ends 121 of the two circular arc support 12 and then fixedly connected, so that the connection between the model of the diverter ring 9 and the two circular arc support 12 is more stable.
In one embodiment, the fixture of the splitter ring model in the foregoing embodiments is applied to a splitter ring icing test bed, the splitter ring icing test bed includes a main test segment device (not shown in the figure), a turntable driving device is provided in the main test segment device, and the turntable 3 is in transmission connection with the turntable driving device so as to be driven to rotate.
In one embodiment, the splitter ring icing test stand is used for a wind tunnel test, which refers to an aerodynamic experiment method for positioning a model of an aircraft or other object in a wind tunnel, and researching the flow of gas and the interaction of the gas with the model so as to know the aerodynamic characteristics of the actual aircraft or other object. The test bed can freely adjust parameters such as a pitch angle, a yaw angle, an airflow velocity, an absolute humidity and the like in a test, so as to complete the research on an icing analysis method of the fan supercharging-grade splitter ring and the verification of an element-grade icing test, obtain the icing rule of the splitter ring, complete the design of the fan supercharging-grade splitter ring air-entraining anti-icing system and the verification of the element-grade air-entraining system anti-icing test, and meet the anti-icing index requirement of the engine splitter ring.
In other embodiments, the splitter ring icing test stand can perform various related icing tests on the fan booster stage splitter ring, including but not limited to splitter ring component icing tests, anti-icing outer surface heat transfer characteristic tests, anti-icing system flow resistance characteristics and heat transfer characteristics tests. Based on the result of the splitter ring element in the test, the icing condition, the icing rule and the icing shape of the air inlet end of the civil turbofan engine can be mastered, and test data are accumulated.
When the method is applied, firstly, the yaw angle of the splitter ring model 9 is rotated to a preset position by using the turntable 3, then, the pitch angle of the splitter ring model 9 is rotated to a preset angle by rotating between the two arc supporting pieces 12 and the two support rods 21 and measuring the included angle between the reference plane 10 and the horizontal plane by using the horizontal measuring instrument. Then, operating the wind tunnel at a stable wind speed, firstly, simultaneously operating the height simulation system and the refrigeration system at a low wind speed, increasing the wind speed to a test target wind speed after the temperature and the pressure of the wind tunnel reach target values, and simultaneously continuously adjusting and stabilizing the temperature; after the temperature reaches the test condition, the spraying system is started according to the combination of the cloud and mist simulated water pressure and the air pressure which are calibrated in advance; monitoring the freezing process and recording the spraying time, and closing the spraying system, the refrigerating system, the power system and the height simulation system after the freezing time required by the test condition is reached; the method comprises the following steps that (1) a test person wears the cold protective clothing and enters a test section to detect the icing result, and the detection comprises photographing, installation of a ROMER, scanning of an ice shape and the like; and (5) deicing the surface of the shunting ring model 9, and carrying out the next test after the deicing is finished.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, any modification, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention, all without departing from the content of the technical solution of the present invention, fall within the scope of protection defined by the claims of the present invention.
Claims (10)
1. A split ring model fixture, comprising:
the fixing assembly is used for fixing the shunt ring model and is provided with a reference surface; and the number of the first and second groups,
the lower part of the bracket component is fixedly connected with a rotatable turntable, the upper part of the bracket component is connected with the fixed component through a rotating shaft component, and the fixed component can rotate around the rotating shaft component;
the bracket component and the rotary table are the same in rotation shaft, the rotary table is rotated to adjust the yaw angle of the shunt ring model, the fixed component is rotated to adjust the pitch angle of the shunt ring model, and the included angle between the reference plane and the horizontal plane is equal to the pitch angle.
2. The shunt ring model fixing device according to claim 1, wherein the bracket assembly comprises two support rods, the fixing assembly comprises two arc support members respectively disposed at the upper ends of the two support rods, one ends of the two arc support members are respectively connected with the two support rods, a gap is formed between the other ends, and the shunt ring model is fixed in the gap.
3. The shunt ring model fixing device according to claim 2, wherein the circular arc supporting member has a groove formed in an outer peripheral surface of the other end, the groove has a fixing member therein, an end surface of the shunt ring model has a hole for allowing at least a part of the fixing member to enter, and the shunt ring model is fixed in the notch by the fixing member in cooperation with the hole.
4. The split ring mold fixture of claim 3, wherein said fasteners are bolts and said apertures are threaded apertures.
5. The diverter ring mold fixture according to claim 2, wherein said one end of said circular arc support member has a connecting plate, said connecting plate is connected to said support rod by a fastening member, said fastening member is said pivot member;
wherein the fastener is loosened to allow the fixing assembly to be rotatable on the bracket assembly.
6. The manifold mold fixture of claim 5 wherein said datum surface is an end surface of said one end.
7. The shunt ring model fixing device according to claim 2, wherein the shunt ring model is a circular arc segment of the engine supercharging stage shunt ring divided by an angle of 30 degrees, and the circular arc segment is connected with the two circular arc supporting members to form a semicircle.
8. The shunt ring model fixing device according to claim 2, wherein the other end surface of the arc support member has a cross section identical to the cross section of the two sides of the shunt ring model.
9. A splitter ring icing test rig comprising a main test section apparatus having a turntable drive, further comprising a splitter ring model fixture as claimed in any one of claims 1 to 8;
wherein, the carousel with carousel drive arrangement transmission is connected.
10. The splitter ring icing test stand of claim 9, wherein the test stand is used for a wind tunnel test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920914285.8U CN209841389U (en) | 2019-06-18 | 2019-06-18 | Splitter ring icing test bed and splitter ring model fixing device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920914285.8U CN209841389U (en) | 2019-06-18 | 2019-06-18 | Splitter ring icing test bed and splitter ring model fixing device thereof |
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| Publication Number | Publication Date |
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| CN209841389U true CN209841389U (en) | 2019-12-24 |
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| CN201920914285.8U Active CN209841389U (en) | 2019-06-18 | 2019-06-18 | Splitter ring icing test bed and splitter ring model fixing device thereof |
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| CN (1) | CN209841389U (en) |
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