Adjustable length connecting rod teaching aid
A technology of connecting rods and teaching aids, applied in the field of machinery, can solve problems such as single excitation frequency, easily damaged rods, difficulty in realizing stepless amplitude modulation and multi-frequency vibration output, and achieve the effect of simple structure and convenient operation
Inactive Publication Date: 2018-12-04
广西合臻泰商务有限公司
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Problems solved by technology
[0002] Conventional mechanical vibration excitation mechanism adopts single crank slider mechanism, eccentric mechanism and cam mechanism, which have the advantages of simple equipment, low price and convenient use, but there are problems such as single excitation frequency and difficult amplitude adjustment, and it is difficult to realize stepless amplitude modulation and multi-frequency vibration output; the double-crank slider mechanism vibration mechanism can realize continuous adjustment of the amplitude online, which has the characteristics of low cost and convenient use of the mechanical vibration mechanism, and at the same time improves the performance of the mechanical vibration mechanism
[0003] The conventional linkage mechanism test bench is generally a four-bar linkage mechanism, which cannot realize the function of the vibration mechanism. Instead, the rods are replaced to meet the length requirements of different real rods. This kind of test bench needs to prepare a large number of connecting rods. It is ready for replacement, and the rod needs to be disassembled continuously during the experiment, which is inconvenient for the experimental operation and easy to damage the rod
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[0008] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0009] Such as figure 1 As shown, the present invention consists of a support table (19), a first controlled motor (1), a second controlled motor (7), a third controlled motor (18), a shaft coupling (2), a double cross cardan Coupling (8), first connecting rod (9), second connecting rod (12), variable length connecting rod connecting rod (10), ordinary connecting rod (11), slider (13), guide rail (17) and so on. The variable-length connecting rod is composed of rod 1 (1) and rod 2 (5), U-shaped block (2), and fastening screws, and the U-shaped block (2) is connected to the rod through fastening screws (3). Item 2(5) on. When the fastening screw (4) is loosened, the connecting rod 1 (1) can move relatively within the U-shaped block (2); when moving to the required length, the length of the connecting rod can be fixed by tightening the screw (4) . In...
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The invention relates to an adjustable length connecting rod teaching aid. The adjustable length connecting rod teaching aid is composed of a support table, a first controlled motor, a second controlled motor, a third controlled motor, a shaft coupling, a double cross universal shaft coupling, a first connecting rod, a second connecting rod, a variable length connecting rod, a common connecting rod, a sliding block and a guide rail. The adjustable length connecting rod teaching aid has a function of online continuous adjustment for an amplitude of a double-crank sliding block mechanism excitation mechanism. Through a change of the length of a connecting rod, frequent disassembly and assembly to replace the connecting rod is prevented, and teaching demonstration and experiment are convenient. The adjustable length connecting rod teaching aid is simple in structure and small in size, is easy to implement, and can be applied to the field of mechanical professional teaching well.
Description
technical field [0001] The invention relates to an adjustable-length connecting rod teaching aid, which belongs to the technical field of machinery. Background technique: [0002] Conventional mechanical vibration excitation mechanism adopts single crank slider mechanism, eccentric mechanism and cam mechanism, which have the advantages of simple equipment, low price and convenient use, but there are problems such as single excitation frequency and difficult amplitude adjustment, and it is difficult to realize stepless amplitude modulation And multi-frequency vibration output; double crank slider mechanism vibration mechanism can realize online continuous adjustment of amplitude, has the characteristics of low cost and convenient use of mechanical vibration mechanism, and improves the performance of mechanical vibration mechanism at the same time. [0003] The conventional linkage mechanism test bench is generally a four-bar linkage mechanism, which cannot realize the functio...
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IPC IPC(8): G09B25/02
CPCG09B25/02
Inventor 不公告发明人
Owner 广西合臻泰商务有限公司