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Numerical word wheel of direct-reading gage

A digital word and direct-reading meter technology, which is applied in the field of metering equipment, can solve problems such as being easily interfered by external strong light, inaccurate metering signals, and easy to have blind spots in coding, so as to achieve less external interference, lower costs, and lower processing requirements. Effect

Active Publication Date: 2013-02-27
ZHEJIANG XIANXIN SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention mainly solves the problem that the digital character wheel of the original direct-reading instrument needs many pairs of photoelectric tubes to match with it, the processing requirements are very high, and the obtained code is likely to have blind spots and be easily interfered by external strong light, resulting in inaccurate measurement signals. Problem: To provide a digital character wheel for direct reading tables, which has a simple structure, low processing requirements, convenient production and assembly, and reduces costs

Method used

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  • Numerical word wheel of direct-reading gage
  • Numerical word wheel of direct-reading gage
  • Numerical word wheel of direct-reading gage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: a kind of digital character wheel of the direct reading table of the present embodiment, as figure 1 , figure 2 As shown, it includes a main wheel 1 that is evenly marked with ten numbers from 0 to 9 on the side along the circumference. There is an annular concave cavity 4 on the right wheel surface of the main wheel 1, and an annular concave cavity 4 is embedded with a size that is suitable for it. A ring magnet 2, one half ring of the ring magnet 2 is an N pole, and the other half ring is an S pole. There are twenty second transmission teeth 9 on the edge of the wheel surface outside the annular cavity 4, and the twenty second transmission teeth are evenly distributed along the circumference of the main wheel 1. The second transmission teeth 9 are all in the shape of a cylinder, and the axis of the cylinder It is perpendicular to the wheel surface of main wheel 1. There is a cylindrical boss 5 protruding from the wheel surface in the center of the whe...

Embodiment 2

[0020] Embodiment 2: a kind of digital character wheel of the direct-reading table of the present embodiment, the left side of main wheel 1 is connected with a shielding cover, and the shielding cover is the barrel-shaped cover body 7 that has a through hole in the center of the bottom of the barrel, through which The hole is coaxial with the shaft mounting hole 3 of the main wheel 1 and has the same size. The barrel mouth of the barrel-shaped cover body 7 is connected to the left wheel surface of the main wheel 1, and the barrel-shaped cover body covers the left wheel of the main wheel 1. On the surface, there are two first transmission teeth 8 on the edge of the wheel surface outside the barrel-shaped cover body, and all the other structures are the same as in Embodiment 1.

[0021] The invention is installed in the direct-reading instrument to form a code plate of the direct-reading instrument. The code plate of the direct-reading instrument includes a circuit board, a plura...

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Abstract

The invention relates to a numerical word wheel of a direct-reading gage. The numerical word wheel comprises a main wheel with numerical words marked on the side surface, wherein an annular magnet is arranged on the right side wheel surface of the main wheel, one half circle of the annular magnet is an N-pole, the other half circle of the annular magnet is an S-pole, a shaft installation hole is arranged in the center of the main wheel, a shielding cover is arranged at the left side of the main wheel, and the shielding cover covers the left side wheel surface of the main wheel. A first drive gear is arranged on the edge of the left side wheel surface of the main wheel, and a second drive gear is arranged on the edge of the right side wheel surface of the main wheel. The numerical word wheel of the direct-reading gage is simple in structure, not high in processing requirements, lowered in cost, and convenient to manufacture and assemble. When the direct-reading gage provided by the invention is used, a magnetic sensor is adopted to acquire the rotating angle of the numerical word wheel, only one magnetic sensor is installed corresponding to one numerical word wheel, so that convenience is brought, the processing requirement is not high, the external interference is less, the precision of a metered electric signal is high, and the electronic type reading accuracy of the direct-reading gage is improved.

Description

technical field [0001] The invention relates to a metering device, in particular to a digital character wheel of a direct-reading meter. Background technique [0002] Some direct-reading meters (such as water meters) are counted and displayed by the sequential rotation of multiple digital wheels. The digital character wheel on the traditional direct-reading instrument needs to be matched with the photocell for use. Several arc-shaped through holes need to be opened on the wheel surface of the digital character wheel. A digital character wheel needs to be installed with at least 5 pairs of photocells correspondingly. When the digital character wheel rotates to different angles, different signals can be collected through the photocell, so that the angle of the digital character wheel is converted into a corresponding electrical signal, which can realize both mechanical direct reading and electronic metering display, or For subsequent processing circuits or control circuits. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D13/00
Inventor 陈秋煌雷俊勇周震宇
Owner ZHEJIANG XIANXIN SCI & TECH CO LTD
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