Automatic replacement device for wind tunnel test base

Abstract

The invention relates to the technical field of wind tunnel tests, in particular to a wind tunnel test base automatic replacement device which comprises a movable base, a mechanical gripper is fixedly mounted on the movable base, a placement frame is fixedly connected to the movable base, a treatment box is fixedly connected to the middle of the placement frame, and a placement seat is fixedly connected to the interior of the treatment box. A sand and dust treatment pipe is rotatably connected to the placement seat, a transmission mechanism is fixedly connected to the sand and dust treatment pipe, a movable frame is arranged on one side of the bottom end of the treatment box, and a sand and dust separation hopper is movably inserted into the movable frame. After a used test base for wind-sand prevention and control wind tunnel research is placed in a processing box by a mechanical gripper, high-pressure air generated by an air pump is discharged and blown to the test base while a sand and dust processing pipe rotates around the test base, and meanwhile, under the action of a transmission mechanism, a spray head swings in a reciprocating manner, so that the dust processing pipe is driven to rotate. Therefore, the automatic replacement device for the wind tunnel test base has efficient cleaning capability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wind tunnel test, in particular to a wind tunnel test base automatic replacement device. BACKGROUND

[0002] The wind tunnel test base (also known as test platform or test base) is a key component in wind tunnel experiments, used to fix test objects or simulate test environments. It is usually used to support test objects (such as aircraft models, cars, building models, etc.), and can interact with the airflow of the wind tunnel to simulate wind force, wind pressure, etc. The design and function of the wind tunnel test base will directly affect the accuracy of the test results and the repeatability of the experiment.

[0003] In wind tunnel tests, different types of test models require different bases to meet test requirements. Currently, the replacement of the base usually requires manual operation, which not only consumes time and effort, but also may affect the accuracy and safety of the test due to improper operation. Therefore, it is of great practical significance to develop a device that can automatically replace the base.

[0004] In the prior art, when the test base for wind and sand prevention and control wind tunnel research is automatically replaced, a large amount of sand and dust will adhere to the base during the wind and sand prevention and control wind tunnel test research process. The prior art does not facilitate automatic cleaning of the base when the test base is automatically replaced. The accumulated sand and dust needs to be manually removed each time the base is replaced, which not only increases the complexity of the operation, but also prolongs the experimental period. In addition, incomplete cleaning may result in residual sand and dust, further affecting the accuracy and reliability of the test.

[0005] In summary, in the prior art, there is a lack of technology for automatically cleaning the test base for wind and sand prevention and control wind tunnel research when it is replaced. SUMMARY

[0006] The purpose of the present application is to solve the shortcomings in the background art and provide a wind tunnel test base automatic replacement device.

[0007] To achieve the above purpose, the technical solution adopted by the present application is as follows: a wind tunnel test base automatic replacement device, comprising a mobile base, a mechanical gripper is fixedly installed on the mobile base, a placement rack is fixedly connected to the mobile base, a treatment box is fixedly connected to the middle of the placement rack, a placement seat is fixedly connected in the treatment box, a sand and dust treatment pipe is rotatably connected to the placement seat, a transmission mechanism is fixedly connected to the sand and dust treatment pipe, a movable rack is provided on one side of the bottom end of the treatment box, and a sand and dust separation hopper is movably inserted into the movable rack.

[0008] Preferably, a plurality of partitions are fixedly connected to the placement rack.

[0009] Preferably, the processing box bottom end side is provided with an exhaust port, the processing box bottom end inner wall is provided with an inclined surface, the processing box side opening is rotatably connected with a cover plate, one end of the cover plate is fixedly connected with a motor A, the motor A is fixedly connected with the processing box inner wall, and the processing box top end inner wall is fixedly connected with a ring gear.

[0010] Preferably, the placement seat bottom end is fixedly connected with an air guide pipe, the air guide pipe is provided with an air outlet, the other end of the air guide pipe extends through the processing box inner wall to the outside and is fixedly connected with an air pump, the air pump is fixedly connected with the processing box outer wall, and the air guide pipe outer wall is fixedly connected with a limiting frame.

[0011] Preferably, the sand dust treatment pipe bottom end is fixedly connected with a connecting sleeve, the connecting sleeve is rotatably connected with the air outlet on the air guide pipe, the sand dust treatment pipe top end is fixedly connected with a motor B, the motor B is fixedly connected with the processing box inner wall, a plurality of spray heads are rotatably connected with the sand dust treatment pipe, one end of the spray head is fixedly connected with a hose, the other end of the hose is in communication with the sand dust treatment pipe inner wall, one side of the spray head is fixedly connected with an adjusting wheel, the sand dust treatment pipe bottom end is fixedly connected with a rotating ring, and a plurality of trapezoidal blocks are fixedly connected with the rotating ring.

[0012] Preferably, the transmission mechanism comprises a fixed frame, the fixed frame is fixedly connected with the sand dust treatment pipe top end, a bent rod is rotatably connected with the fixed frame, a transmission wheel is fixedly connected with the top end of the bent rod, and the transmission wheel is in meshing transmission with the ring gear.

[0013] Preferably, a slotted rod is slidably connected with the fixed frame, the inner wall of the slotted rod is slidably connected with the outer wall of the bent rod, the bottom end of the slotted rod is fixedly connected with a transmission frame, a plurality of transmission racks are fixedly connected with the transmission frame, and the transmission racks are in meshing transmission with the adjusting wheel.

[0014] Preferably, the movable frame is in U-shaped structure, the movable frame top end is slidably connected with the limiting frame, one side of the movable frame top end is fixedly connected with a contact rod, the contact rod is slidably connected with the trapezoidal block, and the movable frame bottom end is provided with mounting holes on both sides.

[0015] Preferably, the sand dust separation hopper top end outer wall is slidably connected with the inner wall of the exhaust port, the sand dust separation hopper bottom end inner wall is slidably connected with two clamping rods in a symmetrical structure, the clamping rod top end is movably connected with the mounting hole, one side of the clamping rod is fixedly connected with a spring, the other end of the spring is fixedly connected with the sand dust separation hopper inner wall, and the clamping rod bottom end is fixedly connected with a handle.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up a treatment box and installing a dust treatment pipe inside the treatment box, after the mechanical gripper places the used wind tunnel test base for sand control research into the treatment box, the dust treatment pipe rotates around the test base while the high-pressure air generated by the air pump is discharged and blown onto the test base. At the same time, under the action of the transmission mechanism, the nozzle swings back and forth, giving the wind tunnel test base automatic replacement device a highly efficient cleaning capability. This not only improves the efficiency and accuracy of the experiment, but also greatly reduces the manual operation and maintenance costs, ensuring the thoroughness of base cleaning and the reliability of experimental data in the wind tunnel test for sand control. 2. By setting up a plug-in sand and dust separation hopper, the sand and dust on the test base can be filtered while the sand and dust treatment pipe is processing the sand and dust. This can effectively improve the cleaning efficiency of the wind tunnel test base, reduce the negative impact of sand and dust on equipment, environment and experiment. It not only improves the sand and dust filtration effect and protects the stability and long-term use of experimental equipment, but also significantly reduces maintenance costs, improves the automation level of the system, and helps to improve the accuracy and reliability of experimental results. 3. By setting up a movable frame, when the dust treatment tube rotates to treat the dust on the test base, the movable frame can be lifted by multiple trapezoidal blocks on the rotating ring. This allows the movable frame to automatically move the inserted dust separation bucket upwards and then automatically fall under its own weight, generating a shaking motion. This can significantly improve the dust separation efficiency and long-term reliability, while maintaining the high efficiency and consistency of the experiment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an automatic wind tunnel test base replacement device according to the present invention; Figure 2 This is a partial cross-sectional view of the overall structure of an automatic wind tunnel test base replacement device according to the present invention; Figure 3 This is a partial cross-sectional schematic diagram of the processing box structure of an automatic wind tunnel test base replacement device according to the present invention; Figure 4 This is a schematic diagram of the placement seat structure of an automatic wind tunnel test base replacement device according to the present invention; Figure 5 This is a schematic diagram of the structure of a wind tunnel test base automatic replacement device, including a sand and dust treatment pipe, according to the present invention. Figure 6 This is a partial structural diagram of the dust treatment pipe of an automatic replacement device for a wind tunnel test base according to the present invention; Figure 7 This is a schematic diagram of the transmission mechanism of an automatic wind tunnel test base replacement device according to the present invention; Figure 8 This is a partial cross-sectional view of the movable frame and sand and dust separation bucket structure of an automatic wind tunnel test base replacement device according to the present invention.

[0018] The diagram shows: 1. Movable base; 2. Mechanical gripper; 3. Placement frame; 4. Processing box; 5. Placement seat; 6. Dust treatment pipe; 7. Transmission mechanism; 8. Movable frame; 9. Dust separation hopper; 301. Partition plate; 401. Discharge port; 402. Cover plate; 403. Motor A; 404. Ring rack; 501. Air guide pipe; 502. Air pump; 503. Limiting frame; 601. Connecting sleeve; 602. Motor B; 603. Nozzle; 604. Hose; 605. Adjusting wheel; 606. Rotating ring; 607. Trapezoidal block; 701. Fixed frame; 702. Bending rod; 703. Transmission wheel; 704. Slotted rod; 705. Transmission frame; 706. Transmission rack; 801. Contact rod; 802. Mounting hole; 901. Snap-fit ​​rod; 902. Spring; 903. Handle. Detailed Implementation

[0019] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0020] like Figures 1-8 The wind tunnel test base automatic replacement device shown includes a movable base 1, a mechanical gripper 2 fixedly mounted on the movable base 1, a placement frame 3 fixedly connected to the movable base 1, a treatment box 4 fixedly connected to the middle of the placement frame 3, a placement seat 5 fixedly connected inside the treatment box 4, a sand and dust treatment pipe 6 rotatably connected to the placement seat 5, a transmission mechanism 7 fixedly connected to the sand and dust treatment pipe 6, a movable frame 8 on one side of the bottom of the treatment box 4, and a sand and dust separation hopper 9 movably inserted into the movable frame 8.

[0021] like Figure 1 As shown, multiple partitions 301 are fixedly connected to the placement rack 3. The partitions 301 serve to classify and place different test bases.

[0022] like Figure 3 As shown, a discharge port 401 is provided on one side of the bottom of the treatment box 4. A slope is provided on the inner wall of the bottom of the treatment box 4. A cover plate 402 is rotatably connected to the opening on one side of the treatment box 4. A motor A403 is fixedly connected to one end of the cover plate 402. The motor A403 is fixedly connected to the inner wall of the treatment box 4. A ring-shaped rack 404 is fixedly connected to the inner wall of the top of the treatment box 4. The slope on the inner wall of the bottom of the treatment box 4 facilitates the discharge of sand and dust.

[0023] like Figure 4As shown, an air guide pipe 501 is fixedly connected to the bottom of the placement base 5. An exhaust port is provided on the air guide pipe 501. The other end of the air guide pipe 501 extends through the inner wall of the treatment box 4 to the outside and is fixedly connected to an air pump 502. The air pump 502 is fixedly connected to the outer wall of the treatment box 4. A limit bracket 503 is fixedly connected to the outer wall of the air guide pipe 501. High-pressure air is injected into the air guide pipe 501 using the air pump 502, then injected into the sand and dust treatment pipe 6 through the air guide pipe 501, and finally guided into the nozzle 603 through the hose 604, where it is sprayed out.

[0024] like Figure 5 , Figure 6 As shown, a connecting sleeve 601 is fixedly connected to the bottom end of the dust treatment pipe 6. The connecting sleeve 601 is rotatably connected to the exhaust hole on the air guide pipe 501. A motor B602 is fixedly connected to the top end of the dust treatment pipe 6. The motor B602 is fixedly connected to the inner wall of the treatment box 4. Multiple nozzles 603 are rotatably connected to the dust treatment pipe 6. A hose 604 is fixedly connected to one end of each nozzle 603. The other end of the hose 604 communicates with the inner wall of the dust treatment pipe 6. An adjusting wheel 605 is fixedly connected to one side of each nozzle 603. A rotating ring 606 is fixedly connected to the bottom end of the dust treatment pipe 6. Multiple trapezoidal blocks 607 are fixedly connected to the rotating ring 606.

[0025] By setting up a treatment box 4 and installing a dust treatment pipe 6 inside the treatment box 4, after the mechanical gripper 2 places the used wind tunnel test base for sand control research into the treatment box 4, the dust treatment pipe 6 rotates around the test base while the high-pressure air generated by the air pump 502 is discharged and blown onto the test base. At the same time, under the action of the transmission mechanism 7, the nozzle 603 swings back and forth, enabling the automatic replacement device for the wind tunnel test base to have a highly efficient cleaning capability. This not only improves the efficiency and accuracy of the experiment, but also greatly reduces the cost of manual operation and maintenance, ensuring the thoroughness of the base cleaning and the reliability of the experimental data in the wind tunnel test for sand control.

[0026] like Figure 7 As shown, the transmission mechanism 7 includes a fixed frame 701, which is fixedly connected to the top end of the sand and dust treatment pipe 6. A bent rod 702 is rotatably connected to the fixed frame 701, and a transmission wheel 703 is fixedly connected to the top end of the bent rod 702. The transmission wheel 703 meshes with the annular rack 404 for transmission.

[0027] A slotted rod 704 is slidably fitted onto the fixed frame 701. The inner wall of the slotted rod 704 is slidably fitted onto the outer wall of the bent rod 702. A transmission frame 705 is fixedly connected to the bottom end of the slotted rod 704. Multiple transmission racks 706 are fixedly connected to the transmission frame 705, and the transmission racks 706 mesh with the adjusting wheel 605 for transmission. The motor B602 drives the connected sand and dust treatment pipe 6 to rotate. At this time, under the action of the ring rack 404, the transmission wheel 703 drives the connected bent rod 702 to rotate, so that the bent rod 702 can drive the slotted rod 704 to reciprocate. The slotted rod 704 can drive the transmission racks 706 connected to the transmission frame 705 to reciprocate, so that the transmission racks 706 drive the nozzle 603 connected to the adjusting wheel 605 to swing back and forth.

[0028] like Figure 8 As shown, the movable frame 8 has a U-shaped structure. The top of the movable frame 8 is slidably connected to the limiting frame 503. A contact rod 801 is fixedly connected to one side of the top of the movable frame 8. The contact rod 801 is in slidable contact with the trapezoidal block 607. Mounting holes 802 are opened on both sides of the bottom of the movable frame 8. When the sand and dust treatment pipe 6 rotates, it will drive the connected rotating ring 606 to rotate, so that the trapezoidal block 607 on the rotating ring 606 pushes up the contact rod 801, causing the contact rod 801 to drive the connected movable frame 8 to move upward. Then, when the contact rod 801 disengages from the trapezoidal block 607, under its own weight, the sand and dust separation hopper 9 connected to the movable frame 8 will shake.

[0029] like Figure 8 As shown, the outer wall of the top of the sand and dust separation hopper 9 is slidably fitted with the inner wall of the outlet 401. The inner wall of the bottom of the sand and dust separation hopper 9 has two symmetrically fitted locking rods 901. The top of each locking rod 901 is movably inserted into the mounting hole 802. A spring 902 is fixedly connected to one side of each locking rod 901, and the other end of the spring 902 is fixedly connected to the inner wall of the sand and dust separation hopper 9. A handle 903 is fixedly connected to the bottom of each locking rod 901. The spring 902 can automatically insert the locking rod 901 into the mounting hole 802.

[0030] Working principle: According to the requirements of the test model, the control system retrieves the corresponding base information from the storage module. The mechanical gripper 2 moves to the designated placement frame 3 according to the information provided by the positioning and identification module, grabs the base, installs it in the designated position of the wind tunnel test section, and fixes it. After the control system confirms that the base is installed, it starts the wind tunnel test. After the test is completed, the device can automatically put the base back on the placement seat 5 in the processing box 4 through the mechanical gripper 2. Then, the motor A403 drives the connected cover plate 402 to rotate and close. Then, the air pump 502 injects high-pressure air into the air guide pipe 501, and then injects it into the sand and dust treatment pipe 6 through the air guide pipe 501, and introduces it into the nozzle 603 through the hose 604, and sprays it out through the nozzle 603. Then, the motor B602 drives the connected sand and dust treatment pipe 6 to rotate. At this time, under the action of the ring rack 404, the transmission wheel 703 drives the connected bent rod 702 to rotate, so that the bent rod 702 can drive the slotted rod 704 to move back and forth, so that the slotted rod 704 can drive the transmission rack 706 connected to the transmission frame 705 to move back and forth, so that the transmission rack 706 drives the nozzle 603 connected to the adjusting wheel 605 to swing back and forth, cleaning the sand and dust attached to the test base. Then the flowing air will carry the sand and dust through the sand and dust separation hopper 9 for filtration. When the sand and dust treatment pipe 6 rotates, it will drive the connected rotating ring 606 to rotate, so that the trapezoidal block 607 on the rotating ring 606 pushes up the contact rod 801, so that the contact rod 801 drives the connected movable frame 8 to move upward. Then, when the contact rod 801 is separated from the trapezoidal block 607, under its own weight, the sand and dust separation hopper 9 connected to the movable frame 8 will shake, ensuring the filtration efficiency of the sand and dust separation hopper 9. When it is necessary to clean the sand and dust separation hopper 9, by holding the locking rod 901 connected by the two handles 903, the locking rod 901 is moved out of the mounting hole 802, so that the sand and dust separation hopper 9 can be removed for cleaning. After cleaning, open the cover plate 402 and use the mechanical gripper 2 to grab the test base and place it on the placement rack 3.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. An automatic replacement device for a wind tunnel test base, comprising a movable base (1), characterized in that: A mechanical gripper (2) is fixedly installed on the mobile base (1). A placement frame (3) is fixedly connected to the mobile base (1). A processing box (4) is fixedly connected to the middle of the placement frame (3). A placement seat (5) is fixedly connected inside the processing box (4). A sand and dust treatment pipe (6) is rotatably connected to the placement seat (5). A transmission mechanism (7) is fixedly connected to the sand and dust treatment pipe (6). A movable frame (8) is provided on one side of the bottom of the processing box (4). A sand and dust separation bucket (9) is movably inserted into the movable frame (8).

2. The automatic replacement device for a wind tunnel test base according to claim 1, characterized in that: Multiple partitions (301) are fixedly connected to the placement rack (3).

3. The automatic replacement device for a wind tunnel test base according to claim 1, characterized in that: The processing box (4) has an outlet (401) on one side of its bottom end. The inner wall of the bottom end of the processing box (4) has an inclined surface. A cover plate (402) is rotatably connected to the opening on one side of the processing box (4). A motor A (403) is fixedly connected to one end of the cover plate (402). The motor A (403) is fixedly connected to the inner wall of the processing box (4). A ring rack (404) is fixedly connected to the inner wall of the top end of the processing box (4).

4. The automatic replacement device for a wind tunnel test base according to claim 3, characterized in that: The bottom of the placement seat (5) is fixedly connected to an air guide pipe (501). An exhaust hole is provided on the air guide pipe (501). The other end of the air guide pipe (501) extends through the inner wall of the processing box (4) to the outside and is fixedly connected to an air pump (502). The air pump (502) is fixedly connected to the outer wall of the processing box (4). A limit frame (503) is fixedly connected to the outer wall of the air guide pipe (501).

5. The automatic replacement device for a wind tunnel test base according to claim 4, characterized in that: A connecting sleeve (601) is fixedly connected to the bottom end of the dust treatment pipe (6). The connecting sleeve (601) is rotatably connected to the exhaust hole on the air guide pipe (501). A motor B (602) is fixedly connected to the top end of the dust treatment pipe (6). The motor B (602) is fixedly connected to the inner wall of the treatment box (4). Multiple nozzles (603) are rotatably connected to the dust treatment pipe (6). A hose (604) is fixedly connected to one end of the nozzle (603). The other end of the hose (604) is connected to the inner wall of the dust treatment pipe (6). An adjusting wheel (605) is fixedly connected to one side of the nozzle (603). A rotating ring (606) is fixedly connected to the bottom end of the dust treatment pipe (6). Multiple trapezoidal blocks (607) are fixedly connected to the rotating ring (606).

6. The automatic replacement device for a wind tunnel test base according to claim 5, characterized in that: The transmission mechanism (7) includes a fixed frame (701), which is fixedly connected to the top end of the sand and dust treatment pipe (6). A bent rod (702) is rotatably connected to the fixed frame (701), and a transmission wheel (703) is fixedly connected to the top end of the bent rod (702). The transmission wheel (703) meshes with a ring rack (404) for transmission.

7. The automatic replacement device for a wind tunnel test base according to claim 6, characterized in that: A slotted rod (704) is slidably fitted on the fixed frame (701). The inner wall of the slotted rod (704) is slidably fitted with the outer wall of the bent rod (702). A transmission frame (705) is fixedly connected to the bottom end of the slotted rod (704). Multiple transmission racks (706) are fixedly connected on the transmission frame (705). The transmission racks (706) mesh with the adjusting wheel (605) for transmission.

8. The automatic replacement device for a wind tunnel test base according to claim 5, characterized in that: The movable frame (8) is U-shaped. The top of the movable frame (8) is slidably connected to the limiting frame (503). A contact rod (801) is fixedly connected to one side of the top of the movable frame (8). The contact rod (801) is slidably connected to the trapezoidal block (607). Mounting holes (802) are opened on both sides of the bottom end of the movable frame (8).

9. The automatic replacement device for a wind tunnel test base according to claim 8, characterized in that: The top outer wall of the sand and dust separation hopper (9) is slidably fitted with the inner wall of the outlet (401). The bottom inner wall of the sand and dust separation hopper (9) has two locking rods (901) in a symmetrical structure. The top of the locking rod (901) is movably inserted into the mounting hole (802). A spring (902) is fixedly connected to one side of the locking rod (901). The other end of the spring (902) is fixedly connected to the inner wall of the sand and dust separation hopper (9). A handle (903) is fixedly connected to the bottom of the locking rod (901).

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