CN212131846U - Moving device for wind tunnel flow field test - Google Patents
Moving device for wind tunnel flow field test Download PDFInfo
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- CN212131846U CN212131846U CN202020488998.5U CN202020488998U CN212131846U CN 212131846 U CN212131846 U CN 212131846U CN 202020488998 U CN202020488998 U CN 202020488998U CN 212131846 U CN212131846 U CN 212131846U
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- probe
- slide rail
- mounting seat
- flow field
- wind tunnel
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Abstract
The utility model provides a mobile device for wind-tunnel flow field test, include: mount pad, swing mechanism and probe. A strip-shaped hole is processed in the mounting seat, sealing grooves are processed in the inner surface and the outer surface of the mounting seat along the outer side of the strip-shaped hole, and sealing rings are arranged in the sealing grooves; the swing mechanism comprises a slide rail, the slide rail is arranged on the mounting seat in a sliding manner and is attached to the sealing ring on the outer surface of the mounting seat, and the slide rail reciprocates along the length direction of the strip-shaped hole; the probe clearance passes the bar hole with the slide rail links to each other, the probe with be equipped with sealing part between the slide rail, the sealing member inner circle with the probe is hugged closely, and the sealing member outer lane with the slide rail is hugged closely. The device can enlarge the detection range of the probe and simultaneously can accurately control the detection position.
Description
Technical Field
The utility model belongs to wind-tunnel flow field test field especially relates to a mobile device for wind-tunnel flow field test.
Background
In the test of the wind tunnel flow field, a probe is required to detect the data of flow velocity, pressure intensity and the like of a plurality of point positions in the flow field, the test range of the conventional wind tunnel flow field test moving device is small, and enough point position data cannot be acquired.
SUMMERY OF THE UTILITY MODEL
For solving prior art not enough, the utility model provides a mobile device for wind-tunnel flow field test uses through the cooperation between swing mechanism, axial displacement mechanism and the rotary mechanism, can make the detection range of probe in the flow field have great increase.
In order to realize the purpose of the utility model, the following scheme is proposed:
a mobile device for wind tunnel flow field testing, comprising: mount pad, swing mechanism and probe.
A strip-shaped hole is processed in the mounting seat, sealing grooves are processed in the inner surface and the outer surface of the mounting seat along the outer side of the strip-shaped hole, and sealing rings are arranged in the sealing grooves;
the swing mechanism comprises a slide rail, the slide rail is arranged on the mounting seat in a sliding manner and is attached to the sealing ring on the outer surface of the mounting seat, and the slide rail reciprocates along the length direction of the strip-shaped hole;
the probe clearance passes the bar hole with the slide rail links to each other, the probe with be equipped with sealing part between the slide rail, the sealing member inner circle with the probe is hugged closely, and the sealing member outer lane with the slide rail is hugged closely.
Furthermore, one side of the mounting seat is provided with a rack, and the other side of the mounting seat is provided with a guide rail;
the swing mechanism further comprises a first motor and a transmission gear, the first motor is connected with the sliding rail through a connecting block, the transmission gear is meshed with the rack, a sliding block is arranged on the connecting block, and the sliding block is in sliding fit with the guide rail.
Further, the two ends of the guide rail are provided with first limit switches.
Further, mount pad, rack, guide rail and slide rail all are the circular arc type structure.
The axial movement mechanism comprises a connecting plate, a second motor and a linear sliding block, the connecting plate is arranged on the connecting block, the connecting plate is provided with a linear guide rail, the second motor is provided with a screw rod, the linear sliding block is in sliding fit with the linear guide rail and is in threaded fit with the screw rod, the probe is connected to the linear sliding block, and the linear sliding block moves along the axis direction of the probe.
Further, still include rotary mechanism, rotary mechanism includes connection frame, rotating electrical machines and gear worm mechanism, the connection frame is located the straight line slider, connection frame one side is equipped with rotating electrical machines, rotating electrical machines is connected with gear worm mechanism, the probe wear adorn in gear worm mechanism's gear.
Further, the axial moving mechanism is provided with a second limit switch.
Further, the mounting seat is processed with a U-shaped groove, and the slide rail is embedded in the U-shaped groove.
Further, the swing mechanism, the axial moving mechanism and the rotating mechanism are provided with absolute encoders.
The beneficial effects of the utility model reside in that:
1. the range of detection points of the wind tunnel flow field can be enlarged, the final detection result is more accurate and effective, the detection points of the probe on the moving track along the sliding rail are increased through the swing mechanism, the detection points of the probe in the axis direction of the probe are increased through the axial moving mechanism, the sweeping area of the probe can be increased through the rotating mechanism, and the three mechanisms are matched with each other to cover the maximum detection point of the flow field.
2. The inner surface and the outer surface of the mounting seat are provided with sealing rings, so that gas leakage in the flow field can be prevented.
3. The sliding rail is arranged in the U-shaped groove and is matched with the guide rail for use, so that the sliding rail is more stable in operation, and the sealing effect between the sliding rail and the mounting seat is ensured.
4. The swing mechanism, the axial moving mechanism and the rotating mechanism are all connected with encoders which can accurately control the position of the probe.
Drawings
The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.
Fig. 1 shows the overall construction of the present invention.
Fig. 2 shows a partial explosion diagram of the present invention.
Fig. 3 shows a block diagram of the mount.
Fig. 4 shows a partially enlarged view of the rotating mechanism.
Fig. 5 shows a connection relationship of the swing mechanism, the axial movement mechanism, and the rotation mechanism.
The labels in the figure are: the device comprises a probe 1, a turbine casing 2, an encoder 3, a mounting seat 10, a strip-shaped hole 11, a sealing groove 12, a sealing ring 13, a rack 14, a guide rail 15, a U-shaped groove 16, a limit switch 17, a swing mechanism 20, a slide rail 21, a first motor 22, a transmission gear 23, a connecting block 24, a sliding block 25, an axial moving mechanism 30, a connecting plate 31, a second motor 32, a lead screw 33, a linear guide rail 34, a linear sliding block 35, a second limit switch 36, a rotating mechanism 40, a connecting frame 41, a rotating motor 42 and a gear worm mechanism 43.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
Examples
As shown in fig. 1-5, a mobile device for wind tunnel flow field testing includes a mounting base 10, a swing mechanism 20, and a probe 1.
Specifically, mount pad 10 processing have bar hole 11, and the internal surface and the surface of mount pad 10 all process along the bar hole 11 outside and have seal groove 12, all are equipped with sealing washer 13 in the seal groove 12.
Specifically, the swing mechanism 20 and the swing mechanism 20 include a slide rail 21, the slide rail 21 is slidably disposed on the mounting seat 10 and attached to the sealing ring 13 on the outer surface of the mounting seat 10, and the slide rail 21 can reciprocate along the length direction of the bar-shaped hole 11.
Specifically, a gap of the probe 1 penetrates through the strip-shaped hole 11 to be connected with the sliding rail 21, a sealing part is arranged between the probe 1 and the sliding rail 21, an inner ring of the sealing part is tightly attached to the probe 1, and an outer ring of the sealing part is tightly attached to the sliding rail 21.
The specific implementation process comprises the following steps:
the installation method comprises the steps that firstly, the inner surface of an installation seat 10 faces to a turbine casing 2, the installation seat 10 is connected to the outer surface of the turbine casing 2, and an opening corresponding to a strip-shaped hole 11 is formed in the turbine casing 2 and used for penetrating and installing a probe 1; then, the slide rail 21 is connected with the mounting seat 10, so that the slide rail 21 can slide on the mounting seat 10, and meanwhile, the time tightness between the mounting seat 10 and the slide rail 21 needs to be ensured, so that the gap between the slide rail 21 and the mounting seat 10 needs to be kept unchanged; finally, the probe 1 is installed on the slide rail 21 and penetrates through the strip-shaped hole 11 and the opening of the turbine casing 2, air pressure exists in the turbine casing 2 during detection, in order to ensure the sealing performance of the device, a sealing ring 13 is additionally arranged on the joint surface of the installation seat 10, the turbine casing 2 and the slide rail 21, and in order to facilitate installation and fixation of the sealing ring 13, a sealing groove 12 is machined on the inner surface and the outer surface of the installation seat 10 and used for installing the sealing ring 13.
The probe 1 can be detected within the range of the bar-shaped hole 11 by sliding the slide rail 21 on the mount 10.
Preferably, in order to enable the sliding block 21 to automatically slide on the mounting base 10, as shown in fig. 1 and fig. 2, a swing mechanism 20 is additionally added, the swing mechanism 20 includes a first motor 22 and a transmission gear 23, and meanwhile, a rack 14 is installed on one side of the mounting base 10, a guide rail 15 is installed on the other side, and the running tracks of the rack 14 and the guide rail 15 are kept consistent;
the probe 1 is characterized in that a connecting block 24 is mounted on the sliding rail 21, a transmission gear 23 is connected with a first motor 22 and used for transmitting power, the first motor 22 is mounted on the side face of the connecting block 24, the transmission gear 23 is meshed with the rack 14, the transmission gear 23 can reciprocate along the rack 14 under the large driving of the first motor 22, the connecting block 24 is provided with a sliding block 25, the sliding block 25 is in sliding fit with the guide rail 15, and the guide rail 15 is used for guiding the swinging mechanism 20.
In a more specific design, as shown in fig. 1 or fig. 2, most of the outer wall of the turbine casing 2 is in an arc-shaped structure, so that the mounting base 10 and the outer wall of the turbine casing 2 are more attached to each other and the installation is more convenient, and therefore, the mounting base 10, the rack 14, the guide rail 15 and the slide rail 21 are all in an arc-shaped structure, and the motion track of the probe 1 is driven by the swing mechanism 20 to move within a predetermined angle range.
Preferably, the moving device further comprises an axial moving mechanism 30, the axial moving mechanism 30 comprises a connecting plate 31, a second motor 32 and a linear slider 35, the connecting plate 31 is arranged on the connecting block 24, the connecting plate 31 is parallel to the probe 1, the connecting plate 31 is provided with a linear guide rail 34, the second motor 32 is provided with a screw rod 33, the linear slider 35 is in sliding fit with the linear guide rail 34 and is in threaded fit with the screw rod 33, the probe 1 is connected to the linear slider 35, the probe 1 can slide in the sliding rail 21 and the connecting block 24, the screw rod 33 and the linear guide rail 34 are both arranged parallel to the probe 1, and the moving direction of the linear slider 35 is consistent with the axial direction along the probe 1. The axial displacement mechanism 30 is provided with a second limit switch 36 for controlling the position of the probe 1 in extension.
Preferably, as shown in fig. 5, the moving device further includes a rotating mechanism 40, the rotating mechanism 40 includes a connecting frame 41, a rotating motor 42 and a gear worm mechanism 43, the rotating mechanism 40 is mounted on the linear slider 35 through the connecting frame 41 and moves together with the linear slider 35; the worm is arranged on a rotating shaft of the rotating motor 42, the probe 1 is arranged on a gear of the gear worm mechanism 43 in a penetrating way, and the probe 1 and the gear of the gear worm mechanism 43 are connected in a key way to transmit rotating torque.
The working principle of the mobile device is further described by combining the design. The probe 1 is controlled to move in three directions by the swinging mechanism 20, the axial moving mechanism 30 and the rotating mechanism 40 respectively, the swinging mechanism 20 drives the probe 1 to move along the track of the guide rail 15 through the first motor 22, the moving range of the probe 1 is controlled by the strip-shaped hole 11, the moving track of the probe 1 driven by the swinging mechanism 20 is in a fan-shaped structure, and the size of the fan-shaped angle is determined by the size of the strip-shaped hole 11; the axial moving mechanism 30 drives the probe 1 to move along the linear guide rail 34, the movement of the probe 1 in the direction determines the side length range of the fan-shaped structure, and the probe 1 can be detected at any position in the range of the fan-shaped structure through the cooperation with the swinging mechanism 20; the rotating mechanism 40 enables the probe 1 to rotate 360 degrees around the axis of the probe 1, so that the space of the probe 1 outside the plane range of the fan-shaped structure can be increased for detection, and the detection range of the probe 1 is further increased.
Preferably, in order to increase the stability of the slide rail 21 during movement, the mounting base 10 is processed with a U-shaped groove 16, and the slide rail 21 is embedded in the U-shaped groove 16.
In a more specific design, the oscillating mechanism 20, the axial moving mechanism 30 and the rotating mechanism 40 are provided with an absolute encoder 3, the type of which is: EQN1035 EnDat 2.2. The absolute encoder 3 of the axial moving mechanism 30 is coaxially connected with the screw rod 33, the absolute encoder 3 of the rotating mechanism 40 is coaxially connected with the rotating motor 42, the swinging mechanism 20 is in one-to-one parallel connection with the transmission gear 23, and the absolute encoder can feed back the absolute position of the probe, the embodied angle position on the mounting seat and the position on the axial direction of the probe in real time.
The foregoing is only a preferred embodiment of the invention and is not intended to be the only or limiting embodiment of the invention. It should be understood by those skilled in the art that various changes and equivalent substitutions made herein may be made without departing from the scope of the invention as defined by the appended claims.
Claims (8)
1. A mobile device for wind tunnel flow field testing, comprising:
the mounting seat (10) is provided with a strip-shaped hole (11), sealing grooves (12) are formed in the inner surface and the outer surface of the mounting seat (10) along the outer side of the strip-shaped hole (11), and sealing rings (13) are arranged in the sealing grooves (12);
the swing mechanism (20) comprises a slide rail (21), the slide rail (21) is arranged on the mounting seat (10) in a sliding mode and is attached to a sealing ring (13) on the outer surface of the mounting seat (10), and the slide rail (21) can reciprocate along the length direction of the strip-shaped hole (11); and
the probe (1), probe (1) clearance passes bar hole (11) with slide rail (21) link to each other, probe (1) with be equipped with sealing part between slide rail (21), the sealing member inner circle with probe (1) is hugged closely, the sealing member outer lane with slide rail (21) are hugged closely.
2. The moving device for the wind tunnel flow field test according to claim 1, wherein one side of the mounting seat (10) is provided with a rack (14), and the other side is provided with a guide rail (15);
the swing mechanism (20) further comprises a first motor (22) and a transmission gear (23), the first motor (22) is connected with the sliding rail (21) through a connecting block (24), the transmission gear (23) is meshed with the rack (14), a sliding block (25) is arranged on the connecting block (24), and the sliding block (25) is in sliding fit with the guide rail (15).
3. The moving device for the wind tunnel flow field test according to claim 1, wherein the mounting seat (10), the rack (14), the guide rail (15) and the slide rail (21) are all arc structures.
4. The moving device for the wind tunnel flow field test according to claim 2, further comprising an axial moving mechanism (30), wherein the axial moving mechanism (30) comprises a connecting plate (31), a second motor (32) and a linear slider (35), the connecting plate (31) is arranged on the connecting block (24), the connecting plate (31) is provided with a linear guide rail (34), the second motor (32) is provided with a lead screw (33), the linear slider (35) is in sliding fit with the linear guide rail (34) and is in threaded fit with the lead screw (33), the probe (1) is connected to the linear slider (35), and the linear slider (35) moves along the axial direction of the probe (1).
5. The moving device for the wind tunnel flow field test according to claim 4, further comprising a rotating mechanism (40), wherein the rotating mechanism (40) comprises a connecting frame (41), a rotating motor (42) and a gear worm mechanism (43), the connecting frame (41) is arranged on the linear sliding block (35), the rotating motor (42) is arranged on one side of the connecting frame (41), the rotating motor (42) is connected with the gear worm mechanism (43), and the probe (1) is mounted on a gear of the gear worm mechanism (43) in a penetrating manner.
6. The moving device for the wind tunnel flow field test according to claim 5, wherein the axial moving mechanism (30) is provided with a second limit switch (36).
7. The moving device for the wind tunnel flow field test according to claim 1, wherein the mounting seat (10) is provided with a U-shaped groove (16), and the sliding rail (21) is embedded in the U-shaped groove (16).
8. The moving device for the wind tunnel flow field test according to claim 1, wherein the swinging mechanism (20), the axial moving mechanism (30) and the rotating mechanism (40) are provided with absolute encoders (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020488998.5U CN212131846U (en) | 2020-04-07 | 2020-04-07 | Moving device for wind tunnel flow field test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020488998.5U CN212131846U (en) | 2020-04-07 | 2020-04-07 | Moving device for wind tunnel flow field test |
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| Publication Number | Publication Date |
|---|---|
| CN212131846U true CN212131846U (en) | 2020-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020488998.5U Active CN212131846U (en) | 2020-04-07 | 2020-04-07 | Moving device for wind tunnel flow field test |
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| Country | Link |
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| CN (1) | CN212131846U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116296238A (en) * | 2023-05-22 | 2023-06-23 | 中国航发四川燃气涡轮研究院 | Probe clamping device for measuring fan-shaped flow field of turbine |
-
2020
- 2020-04-07 CN CN202020488998.5U patent/CN212131846U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116296238A (en) * | 2023-05-22 | 2023-06-23 | 中国航发四川燃气涡轮研究院 | Probe clamping device for measuring fan-shaped flow field of turbine |
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