A Vertical Axis Wind Turbine Model for Physical Experiments
A technology for wind turbines and physical experiments, applied in the field of teaching aids for teaching, can solve problems such as increased teaching costs, potential safety hazards, motor burnout, etc., and achieves the effect of saving teaching costs
Active Publication Date: 2018-10-02
王宝堃
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Problems solved by technology
During the experiment, some students turned the blades quickly due to their curiosity. Since the blades are fixed together with the vertical shaft through the rotary shaft, when the rotation speed of the blades exceeds the maximum speed of the motor, the motor will be burned. This situation happens from time to time, which not only poses safety hazards, but also increases teaching costs
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[0019] The present invention will be described in detail below with reference to the drawings and specific embodiments:
[0020] Specific embodiments, such as figure 1 , figure 2 with image 3 As shown, a vertical axis wind turbine model for physical experiments includes a motor 1, a vertical shaft that is coaxially arranged and fixedly connected to the motor 1, a rotary shaft 3 that is sleeved on the periphery of the vertical shaft 2, and a rotary shaft 3 The outer blade 4, the blade 4 is fixedly connected to the rotary shaft 3 by the connecting arm 5, the vertical shaft 2 is fixed with a bearing 6 and a connecting sleeve 7, and the vertical shaft 2 forms a rotational fit with the rotary shaft 3 by the bearing 6, at least one The connecting arm 5 is provided with a stepped groove, the stepped groove is located at the end of the connecting arm 5 and the rotating shaft 3, the large-diameter groove of the stepped groove is located on the side close to the rotating shaft 3, and the...
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The invention discloses a vertical-axis wind turbine model for a physical experiment. The vertical-axis wind turbine model for the physical experiment belongs to the technical field of training aids for teaching, and comprises a motor, a vertical shaft, a rotary shaft and a blade, wherein the blade is fixedly connected with the rotary shaft through a connecting arm; a bearing and a connecting sleeve are fixed onto the vertical shaft; the vertical shaft is in running fit to the rotary shaft through the bearing; a step trough is formed in at least one connecting arm, and is located on one end, connected with the rotary shaft, of the connecting arm; a large-diameter slot of the step trough is located on one side close to the rotary shaft; a sliding block is arranged in a small-diameter slot of the step trough; an elastic rod with a horizontal sliding freedom degree is arranged at a position, corresponding to the large-diameter slot, of the rotary shaft; the elastic rod is connected with asliding block through an elastic mechanism arranged in the large-diameter slot; the elastic rod is clamed and fixed or separated from the connecting sleeve through the cooperation of the elastic mechanism and the sliding block so as to enable the rotary shaft and the vertical shaft to be connected fixedly or separated from each other. The occurrence of the phenomenon that a motor is burnt out dueto overhigh rotation speed of the vertical shaft can be avoided, the model is safe and reliable, and the teaching cost can be saved.
Description
Technical field [0001] The invention belongs to the technical field of teaching aids for teaching, and relates to a vertical axis wind power generator model for physics experiments. Background technique [0002] In physics experiments, in order to enable students to intuitively understand the principles of wind power generation and increase their perceptual knowledge and interest in physics experiments such as mechanics and electricity, teachers often use some wind turbine models for live demonstrations. Existing wind turbine models generally include a motor, a vertical shaft that is coaxially arranged and fixedly connected to the motor, a rotating shaft set and fixed on the periphery of the vertical shaft, and blades arranged on the periphery of the rotating shaft. The blades are connected to the rotating shaft by means of a connecting arm. It is fixedly connected, and the blade takes the vertical axis as the rotation axis. During the experiment, some students would turn the bl...
Claims
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CPCG09B23/188
Inventor 王宝堃
Owner 王宝堃