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Dustproof and waterproof velometer

A dust-proof, waterproof, speed measuring technology, applied in the field of speed measuring devices, can solve the problems of inaccurate test data, poor sealing, ash or moisture, etc., to ensure the effect of sealing

Active Publication Date: 2015-03-11
DANDONG HUAXIN CONTROL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing speedometer, in the environment with severe dust pollution or humidity, due to the poor sealing, dust or moisture will occur, causing failure of internal parts, especially the rotary encoder is affected, and the test data is inaccurate

Method used

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  • Dustproof and waterproof velometer
  • Dustproof and waterproof velometer
  • Dustproof and waterproof velometer

Examples

Experimental program
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Effect test

Embodiment Construction

[0012] Such as Figure 1~4 As shown, a dust-proof and waterproof tachometer includes a base 1, a rotary encoder 2, a fixing piece 3, a bolt 4, a rotating shaft 5, a bearing 6, a bearing seat 7, a coupling 8, an O-ring 9 and a shield 10. The fixing sleeve 11, the gland 12, the sealing felt ring 13 and the screw 14, the fixing piece 3, the base 1, the fixing sleeve 11 and the bearing seat 7 are connected together by the bolt 4, the base 1 and the fixing sleeve 11 is provided with a groove, the O-ring 9 is installed in the groove; the rotary encoder 2 is installed on the fixing plate 3, the shield 10 is bonded to the The base 1; the bearing 6 is arranged in the bearing seat 7, the rotating shaft 5 is installed in the bearing 6, the rotating shaft 5 is connected to the shaft of the rotary encoder 2 through the coupling 8 Together; the gland 12 is provided with a round hole, the round hole is sleeved on the shaft 5, the screw 14 fixes the gland 12 on the bearing seat 7 and presses ...

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Abstract

The invention relates to a velometer, in particular to a dustproof and waterproof velometer. According to the technical scheme provided by the invention, the dustproof and waterproof velometer comprises a base, a rotary coder, a stator, a bolt, a rotating shaft, a bearing, a bearing base, a coupler, an O-shaped sealing ring, a protective cover, a fixing sleeve, a pressure cover, a sealing felt ring and a screw; the stator, the base, the fixing sleeve and the bearing base are connected together through the bolt; a groove is arranged between the base and the fixing sleeve; the O-shaped sealing ring is installed in the groove; the pressure cover is provided with a circular hole; the rotating shaft is sleeved with the circular hole; the screw is used for fixing the pressure cover on the bearing base and tightly pressing the bearing; a trapezoidal groove is formed at the circle hole position of the pressure cover; and the sealing felt ring is installed in the trapezoidal groove, so that sealing between the pressure cover and the rotating shaft is realized. The velometer disclosed by the invention can normally work under all kinds of use conditions; and particularly, the velometer still can normally work under serious dust pollution or in a moist environment.

Description

Technical field [0001] The invention relates to a tachometer, in particular to a dustproof and waterproof tachometer. Background technique [0002] At present, the application range of the tachometer is becoming wider and wider, so it is required that the tachometer can work normally under various conditions of use. Existing tachometers, under severe dust pollution or damp environment, may cause dust or moisture due to poor sealing, causing internal parts to malfunction, especially the rotary encoder, and the test data is inaccurate. Summary of the invention [0003] The present invention provides a dust-proof and waterproof tachometer, which can work normally under various use conditions, especially under severe dust pollution or humid environment. [0004] The technical scheme of the present invention is as follows: [0005] A dustproof and waterproof speed measuring device, including a base, a rotary encoder, a fixing piece, a bolt, a rotating shaft, a bearing, a bearing seat, a ...

Claims

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Application Information

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IPC IPC(8): G01P3/00G01P1/00
Inventor 刘晓平
Owner DANDONG HUAXIN CONTROL TECH
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