Friction pair magnetic field strength fine-tuning device for magnetic fluid lubrication and using method thereof
A technology of magnetic field strength and fine-tuning device, which is applied in the direction of applying repeated force/pulsation force to test material strength, transmission device, measuring device, etc. It can solve the problems of settlement problems and limitations, and achieve good load bearing, high transmission precision and easy realization. Effect
Active Publication Date: 2021-08-24
ANHUI POLYTECHNIC UNIV
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Problems solved by technology
Magnetorheological fluid is a smart material that can achieve continuous and rapid response under the control of an external additional magnetic field. In the past ten years, magnetorheological fluid has developed rapidly in practical applications, but its settlement problem limits further development.
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[0028] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.
[0029] Such as Figure 1-Figure 9 As shown, a friction pair magnetic field intensity fine-tuning device for magnetic fluid lubrication is used to adjust the distance between the permanent magnet 2 and the lower surface of the sample 7, including an outer shell 9 for fixing the sample 7, and The outer casing 9 forms a cavity 10 for accommodating the lifting and fine-tuning device under the sample 7, and the lifting and fine-tuning device includes a box body 6, a box cover 4 and a screw mechanism;
[0030] Such as Figure 8 As shown, the lead screw mechanism includes a lead screw 29, a slider 22, a low auxiliary slope mechanism composed of the lower wedge 20 and the upper wedge 3, and a guide rail mechanism fixed at the bottom of the box body 6. Th...
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The invention discloses a friction pair magnetic field intensity fine-tuning device for magnetic fluid lubrication and a use method thereof, which are used for adjusting the distance between a permanent magnet and the lower surface of a sample, including an outer shell for fixing the sample, And the outer shell forms a cavity below the sample to accommodate the lifting and fine-tuning device. The lifting and fine-tuning device includes a box body, a box cover and a screw mechanism; the screw drive pair is driven by turning the handle, and the turnover motion of the screw is converted into a slider. Linear motion, the lead screw rotates to drive the slider, and then the two oblique wedges cooperate with each other to form a low-level contact to carry the load on the permanent magnet. The invention has the characteristics of high stability, high transmission precision and easy realization.
Description
technical field [0001] The invention relates to a device for fine-tuning the magnetic field intensity of a friction pair for magnetic fluid lubrication, more specifically, it relates to a lifting and fine-tuning device that drives a wedge to reciprocate up and down through a screw drive, and is suitable for adjusting the surface of a friction and wear sample. Test bench setup for magnetic field strength. Background technique [0002] Magnetic fluid is also called magnetic liquid, ferrofluid or ferrofluid. Magnetic fluid is a new type of functional material. Due to its simple structure and easy preparation, it has the fluidity of liquid and the magnetism of solid magnetic materials, so its It has broad application prospects in practical engineering. Magnetic fluid is a mixture of magnetic solid particles with a diameter of nanometer scale (diameter below 10nm), base carrier liquid (also called media) and surfactant. Generally, it is composed of micro- or nano-scale ferromagn...
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IPC IPC(8): G01N3/38
CPCF16H37/124F16N15/00F16N2250/00G01N3/02G01N3/06G01N3/38G01N2203/0005G01N2203/005G01N2203/0635
Inventor 杨广鑫潘家保吴波文艾和金高洪赵帅帅王亚军叶锦汪奥王家梅
Owner ANHUI POLYTECHNIC UNIV