Lead screw propulsion demonstration device
The technology of a demonstration device and a lead screw is applied in the field of a lead screw propulsion demonstration device for scientific and educational experiments, which can solve the problems of not being able to meet the long-term cycle demonstration, unable to realize the back and forth movement of the nut, and difficult to capture the experimental phenomenon, and achieve novel structure and structure. Compact, presentation-enhancing effects
Inactive Publication Date: 2018-06-01
江苏科学梦创展科技有限公司
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The lead screw used for scientific and educational experiments in the prior art has the following disadvantages: 1. It needs to be manually rotated, which is inconvenient to operate and poor in demonstration effect; 2. The length of the lead screw is fixed, the nut moves in one direction, and the nut is stuck on the lead screw At the end, the intelligent control nut cannot move back and forth on the lead screw, and the experimental phenomenon is not easy to capture; 3. The stability of the whole structure is low, and it cannot meet the long-term circular demonstration, and it is easy to be damaged and has a high repair rate.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.
[0030] It should be understood that terms such as "having", "comprising" and "including" as used herein do not entail the presence or addition of one or more other elements or combinations thereof.
[0031] Figures 1 to 4 An implementation form according to the present invention is shown, which includes: a lead screw propulsion mechanism 1, the lead screw propulsion mechanism 1 has a lead screw 11, and an adapted nut 12 is screwed on the lead screw 11, and the two ends of the lead screw 11 are Installed in the two bearing seats 13, there is also a slide bar 14 between the two bearing seats 13, the nut 12 is connected to the ring 15, and the ring 15 is slidingly sleeved on the slide bar 14, and the two ends of the screw 11 are respectively A photoelectric switch is installed...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a lead screw propulsion demonstration device comprising a simple pendulum which is provided with a pendulum line and a pendulum ball, wherein one end of the pendulum line is fixed and the other end is connected with the pendulum ball, and the period of the simple pendulum is T; a permanent magnet which is installed on the pendulum ball; a photoelectric switch which is usedfor detecting passing of the pendulum ball above, wherein the intensity change of the light between the transmitting end and the receiving end of the photoelectric switch is converted into the changeof current when the pendulum ball passes; a PLC which is used for receiving the electric signal of the photoelectric switch and generating a corresponding control instruction; a relay which is used for receiving the power-on and power-off control instruction of the PLC and performing corresponding action; and an electromagnetic coil of which on / off is controlled by the relay and is used for attracting the permanent magnet arranged on the pendulum ball and providing compensating force to the pendulum ball. Long-time swinging can be realized, the observation time is long and the experimental phenomenon is continuously repeated and easy to capture so that the whole structure has high stability, long-time cyclic demonstration can be met and the display effect is great.
Description
technical field [0001] The present invention relates to a device used in scientific and educational experiments and recreational activities. More specifically, the present invention relates to a screw propulsion demonstration device for scientific and educational experiments. Background technique [0002] The screw is a product that converts rotary motion into linear motion, or converts linear motion into rotary motion. [0003] Specifically, the existing lead screw generally includes the following structures: a lead screw, a nut screwed on the lead screw, bearing seats installed at both ends of the lead screw, a slide bar connecting the two bearing seats, and a ring connected with the nut. Turn the lead screw, and the nut on the lead screw will advance or retreat with the rotation of the lead screw, converting the rotary motion into linear motion. [0004] The lead screw used for scientific and educational experiments in the prior art has the following disadvantages: 1....
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G09B25/02
CPCG09B25/02
Inventor 嵇道文
Owner 江苏科学梦创展科技有限公司