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Wiper pressing force test device and method

A test device and wiper technology, which is used in measurement devices, machine/structural component testing, vehicle testing, etc., can solve the problems that height cannot be well controlled and cannot be measured accurately, and achieve the effect of accurate measurement

Active Publication Date: 2011-09-21
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the lifting height cannot be well controlled, different lifting heights have different force values, resulting in a large randomness in the measurement results, which cannot be accurately measured

Method used

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  • Wiper pressing force test device and method
  • Wiper pressing force test device and method

Examples

Experimental program
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Effect test

Embodiment Construction

[0015] like figure 1 Shown, a kind of automobile windshield wiper compression force testing device, comprises force sensor 4, the clip 5 of clamping wiper; Also be provided with a door-shaped frame 1, a guide rail hole is arranged on the door-shaped frame 1 doorframe, passes through a guide rail hole The screw rod 2 can only slide up and down and cannot rotate. The upper part of the screw rod 2 has a nut 3 for movable connection, and the lower end is connected with a force sensor 4 and a clip 5 for clamping the wiper. The upper part of the screw rod 2 is a guide rail surface ground flat on both sides, and there are scale marks on the guide rail surface, which can intuitively read the height of the lift. For the convenience of the manual nut 3, the nut 3 is a wing nut. In order to protect the glass, the lower end of the door frame is pasted with a cushion 6, such as a sponge. In order to clamp the wiper conveniently, the clip 5 for clamping the wiper is a sleeve.

[0016] A ...

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Abstract

The invention discloses an automobile wiper pressing force test apparatus comprising a force sensor and a clamp holding the wiper. The apparatus is characterized in that a door-shaped frame is arranged and a guide aperture is arranged on the frame; a screw which can slide up and down but cannot turn is threaded through the guide aperture; a movably-connected nut is arranged on the upper part of the screw and the lower part is connected with the pressure sensor and the wiper clamp. The invention adopts the door-shaped frame and adopts the screw structure to raise the arm of the wiper; a group of strain gauge is stuck onto the contact line between the automobile glass and the wiper so as to stop the raising when the strain gauge senses that the pressing force brought to the glass by the wiper is zero and then the force sensor measures the raising force which is just the pressing force of the wiper according to the theories of the third law of Newton that the force is equal to the reciprocal force so as to accurately measure the pressing force of the wiper.

Description

technical field [0001] The invention relates to a force testing device and a testing method thereof, in particular to a vehicle wiper pressing force testing device and a testing method thereof, belonging to the technical field of vehicle product testing. Background technique [0002] The pressing force of the vehicle wiper refers to the force that the wiper presses the blade on the glass to be wiped. The pressing force of the wiper is an important performance index of the wiper, which is directly related to the cleanliness and wiping force of the wiper. The operating power requirements of the scraper motor have a great influence. At present, there is no definite measurement method and device for the pressing force of the vehicle wiper. Traditionally, this has been measured by lifting the wiper arm off the glass surface with a hand-held dynamometer and measuring its reaction force. However, since the lifting height cannot be well controlled, and different lifting heights ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L1/22G01M17/007
Inventor 阳轩铎
Owner CHERY AUTOMOBILE CO LTD
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