Wind tunnel experiment platform pitch angle device
By designing a pitch angle device for a wind tunnel experimental platform based on mechanical transmission and mechanical principles, a precise pitch angle adjustment within a range of ±45° is achieved using an electric cylinder, a stepper motor, and a position sensor. This solves the problems of limited adjustment range and insufficient control precision of traditional devices, simplifies the structure, and reduces maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2026-03-17
AI Technical Summary
Traditional wind tunnel test platform pitch angle adjustment devices suffer from limited adjustment range, insufficient control precision, complex structure, and high maintenance costs.
The pitch angle device of the wind tunnel test platform, designed using mechanical transmission and mechanical principles, includes a base, electric cylinder, stepper motor, and rotating rod. It monitors and controls the pitch angle through a position sensor, achieving precise adjustment within a range of ±45°.
It enables high-precision adjustment of the pitch angle of the wind tunnel test platform, expands the adjustment range, simplifies the structure, and reduces maintenance costs.
Smart Images
Figure CN224004632U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of wind tunnel experimental devices, and in particular to a pitch angle device for a wind tunnel experimental platform. Background Technology
[0002] The pitch angle adjustment device of a wind tunnel test platform is a key piece of equipment in the field of aerodynamic testing. Its function is to simulate airflow characteristics under different operating conditions by precisely adjusting the pitch angle of the test workpiece, thereby obtaining high-precision aerodynamic data. Traditional pitch angle adjustment devices mostly adopt manual mechanical structures or low-precision electric drives, which have problems such as limited adjustment range, insufficient control accuracy, complex structure, and high maintenance costs. Therefore, developing an adjustable pitch angle device for a wind tunnel test platform is of great significance. Summary of the Invention
[0003] The purpose of this invention is to provide a pitch angle device for a wind tunnel experimental platform to overcome the problems existing in the prior art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] This utility model provides a pitch angle device for a wind tunnel experimental platform, including a base, an electric cylinder and a stepper motor. The electric cylinder is located on the upper end of the base. One side of the electric cylinder is connected to the stepper motor for transmission, and the other side is provided with a support rod. The support rod and the top of the electric cylinder are connected to a rotating rod. One end of the rotating rod is provided with a quick-connect sleeve.
[0006] Furthermore, the support rod is fixedly connected to or hinged to the base.
[0007] Furthermore, the electric cylinder is fixedly connected to or hinged to the base.
[0008] Furthermore, the support rod is hinged to the rotating rod.
[0009] Furthermore, the rotating rod is hinged to the rod of the electric cylinder.
[0010] Furthermore, one end of the rotating rod is provided with an experimental workpiece mounting plate and an experimental workpiece, and the experimental workpiece mounting plate and the experimental workpiece are connected to the rotating rod through a quick-connect sleeve.
[0011] Compared with the prior art, the present invention has the following advantages:
[0012] This invention is primarily based on mechanical transmission and mechanics principles. It consists of a drive device, a transmission device, and a control device. The drive device is the power source for the pitch angle adjustment mechanism. The transmission device transmits the power from the drive device, converting motion into force or torque, enabling the mechanism to adjust the pitch angle. The control device monitors and controls the motion state of the pitch angle adjustment mechanism. It acquires the object's pitch angle through a position sensor and controls the mechanism to reach the predetermined pitch angle based on the set value and feedback signal, allowing the rotating rod to move within a range of ±45°. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the overall structure of the pitch angle device of the wind tunnel experimental platform of this utility model.
[0015] In the diagram: 1-Electric cylinder, 2-Stepper motor, 3-Experimental workpiece mounting plate, 4-Quick connection sleeve, 5-Support rod, 6-Rotating rod, 7-Experimental workpiece, 8-Base. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] Example 1
[0018] Please see the appendix Figure 1 The present invention provides a pitch angle device for a wind tunnel experimental platform, comprising a base 8, an electric cylinder 1 and a stepper motor 2. The electric cylinder 1 is mounted on the upper end of the base 8. One side of the electric cylinder 1 is connected to the stepper motor 2 for transmission, and the other side is provided with a support rod 5. The support rod 5 and the top of the electric cylinder 1 are connected to a rotating rod 6. One end of the rotating rod 6 is provided with a quick-connect sleeve 4.
[0019] In this embodiment, the support rod 5 is fixedly connected to or hinged to the base 8.
[0020] In this embodiment, the electric cylinder 1 is fixedly connected to or hinged to the base 8.
[0021] In this embodiment, the support rod 5 is hinged to the rotating rod 6.
[0022] In this embodiment, the rotating rod 6 is hinged to the rod of the electric cylinder 1.
[0023] In this embodiment, one end of the rotating rod 6 is provided with an experimental workpiece mounting plate 3 and an experimental workpiece 7, which are connected to the rotating rod 6 via a quick-connect sleeve 4.
[0024] In this embodiment, the electric cylinder 1 is an electric telescopic reciprocating cylinder, the base 8 is connected by a flange, and the material of the base 8 is 6063 aluminum.
[0025] Working principle and usage: In this embodiment, the pitch angle device of the wind tunnel experimental platform works by sending pulses to the stepper motor 2 via a controller, controlling the forward and reverse rotation and the step angle of the stepper motor 2. The stepper motor 2 controls the rod of the electric cylinder 1 to rise, fall, and move up and down (motor forward rotation raises the rod, motor reverse rotation lowers the rod). The rising and falling of the electric cylinder rod drives the rotating rod 6 to rotate clockwise and counterclockwise with its connection point with the support rod 5 as the origin, thereby creating a pitch angle between the experimental workpiece mounting plate and the horizontal, and thus controlling the pitch angle of the experimental workpiece 7.
[0026] The electric cylinder rod rises, driving the rotating rod 6 to rotate counterclockwise around the support rod 5 and its connection point, causing the experimental workpiece mounting plate 3 to form a pitch angle with the horizontal, thereby controlling the pitch angle of the experimental workpiece 7. The electric cylinder rod descends, driving the rotating rod 6 to rotate clockwise around the support rod 5 and its connection point, causing the experimental workpiece mounting plate 3 to form a pitch angle with the horizontal, thereby controlling the pitch angle of the experimental workpiece 7.
[0027] This invention provides a pitch angle device for a wind tunnel experimental platform, based on mechanical transmission and mechanics principles. It consists of a drive unit, a transmission unit, and a control unit. The drive unit is the power source for the pitch angle adjustment mechanism. The transmission unit transmits the power from the drive unit, converting motion into force or torque, enabling the mechanism to adjust the pitch angle. The control unit monitors and controls the motion state of the pitch angle adjustment mechanism. It acquires the pitch angle of the object through a position sensor and controls the mechanism to reach the predetermined pitch angle based on set values and feedback signals.
[0028] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A pitch angle device for a wind tunnel experimental platform, characterized in that, It includes base (8), electric cylinder (1) and step motor (2), the electric cylinder (1) is arranged on the upper end of base (8), one side of the electric cylinder (1) is drivingly connected with step motor (2), the other side is equipped with support rod (5), the support rod (5), electric cylinder (1) top end is connected with rotating rod (6), one end of the rotating rod (6) is equipped with quick connecting sleeve (4).
2. The pitching device for a wind tunnel test platform according to claim 1, wherein, The support rod (5) is fixedly connected with the base (8) or is hinged.
3. The pitching device for a wind tunnel test platform according to claim 1, wherein, The electric cylinder (1) is fixedly connected with the base (8) or is hinged.
4. The pitching device of a wind tunnel test platform according to claim 2 or 3, characterized in that, The support rod (5) is hinged with the rotating rod (6).
5. The pitching device for a wind tunnel test platform according to claim 1, wherein, The rotating rod (6) is hinged with the rod of the electric cylinder (1).
6. The pitching device for a wind tunnel test platform according to claim 5, wherein, One end of the rotating rod (6) is equipped with experimental workpiece mounting plate (3), experimental workpiece (7), the experimental workpiece mounting plate (3), experimental workpiece (7) are connected with the rotating rod (6) through the quick connecting sleeve (4).