Single-stroke reciprocating mechanical meter head data acquisition device
A data acquisition, reciprocating technology, used in measuring devices, instruments, liquid/fluid solid measurement, etc., to reduce fatigue, ensure stability and reliability, and prolong life.
Active Publication Date: 2011-07-20
SICHUAN HENGXIN SCI & TECH
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Problems solved by technology
[0007] The technical problem to be solved by the present invention is to provide a single-stroke reciprocating mechanical meter data acquisition device, which can overcome the shortcomings of the prior art in view of the shortcomings of the prior art meter data acquisition device, such as short switch life and inaccurate counting
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[0018] In this example, the configuration relationship of the counting wheel, cam, crank arm connecting rod, intermediate transmission mechanism, and mechanical switch is shown as follows: figure 1 As shown, the intermediate transmission mechanism includes a cone and a transition wheel. One end of the crank arm link only drives the cone to rotate when it jumps from the highest point to the lowest point of the involute jumping wheel. When the cone rotates to a certain point, it drives the transition wheel to press the mechanical switch. At other positions during the rotation of the involute jumping wheel, the transition wheel releases the pressing of the mechanical switch.
[0019] The single-stroke reciprocating mechanical meter data acquisition device of this example includes a counting wheel, cam, crank arm connecting rod, intermediate transmission mechanism, mechanical switch and microprocessor. figure 1 A schematic diagram showing the configuration of the counting wheel 10, th...
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The invention relates to a single-stroke reciprocating mechanical meter head data acquisition device. Aiming at solving the defects of short service life of a switch and inaccurate counting of the meter head data acquisition device of the prior art, the invention discloses the single-stroke reciprocating mechanical meter head data acquisition device which can overcome the defects of the prior art. In the technical scheme, the single-stroke reciprocating mechanical meter head data acquisition device comprises a counting code wheel, a cam wheel, a crank arm connecting rod, an intermediate transmission mechanism, a mechanical switch and a microprocessor, wherein the mechanical switch is connected with the microprocessor and transmits a level fluctuation signal to the microprocessor; the cam wheel and the counting code wheel rotate synchronously to drive the crank arm connecting rod to move, and the crank arm connecting rod is interlocked with the cam wheel; when the cam wheel rotates to a certain position, the crank arm presses the mechanical switch through the intermediate transmission mechanism so as to transmit the level fluctuation signal to the microprocessor; and when the cam wheel rotates to other positions, the intermediate mechanism releases the mechanical switch. The device is a data automatic acquisition device used for a mechanical gasmeter.
Description
Technical field [0001] The invention relates to data acquisition and processing technology, in particular to a mechanical gas meter head data automatic acquisition device. Background technique [0002] The counting principle of the mechanical gas meter head is to use the gas flow to drive the counting wheel to rotate for counting. To realize automatic meter reading, the rotation of the counting wheel needs to be converted into electrical signals. In addition to ensuring the accuracy of meter data collection, because it is a micro device embedded in the meter head, it must be compact in structure, reliable in action, and Low power consumption is also an indicator that must be achieved. This is an arduous task, many developers have made various attempts and efforts for this, but so far, they have not really solved this problem from a practical perspective. [0003] The basic structure of the mechanical gas meter head includes several (generally more than 6) counting code wheels. Th...
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IPC IPC(8): G01F15/07
Inventor 张长明
Owner SICHUAN HENGXIN SCI & TECH