Unpowered drill for measuring device of surface insulation resistance of electrical steel sheets
A technology of insulation resistance measurement and electrical steel sheet, which is applied in the direction of measuring device, high resistance measurement, driving device, etc., can solve the problem of incorrect test results of electrical steel sheet surface insulation resistance, easy damage to the surface coating of electrical steel sheet, etc. problem, to achieve the effect of small torque, high precision and shallow depth
Active Publication Date: 2018-09-18
长沙天恒测控技术有限公司
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] The invention provides a non-powered drill for measuring the surface insulation resistance of electrical steel sheets to solve the problem that the electrical steel sheets are easily damaged when the existing power-driven auger bit is used to drill holes on the insulating coating on the surface of electrical steel sheets. The coating on the surface of the sheet leads to the technical problem that the test result of the surface insulation resistance of the electrical steel sheet is incorrect
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0033] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0034] refer to image 3 , the preferred embodiment of the present invention provides a kind of unpowered drill for electrical steel sheet surface insulation resistance measuring device, comprises casing 10, the drill bit 20 that protrudes outside casing 10 and is arranged in casing 10 A motion conversion mechanism for converting the pressure of the drill bit 20 into a rotational motion of the drill bit 20 so that the drill bit 20 can drill through the oxide layer and / or coating on the surface of the electrical steel sheet in the sample to be tested. Wherein, the motion conversion mechanism is a transmission mechanism that converts linear motion into rotary motion. The motion conversion mechan...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an unpowered drill for an electrical steel sheet surface insulation resistance measuring device. The unpowered drill for the electrical steel sheet surface insulation resistance measuring device comprises a shell, a drill bit extending out of the shell and a motion converting mechanism, wherein the motion converting mechanism is arranged in the shell and used for converting the pressure of downward pressing of the drill bit into the kinetic force for driving the drill bit to rotate so as to enable the drill bit to drill out of a surface oxide layer and / or coating of an electrical steel sheet in a test sample. According to the unpowered drill for the electrical steel sheet surface insulation resistance measuring device, the pressure of downward pressing of the drill bit is converted by the motion converting mechanism arranged in the shell into the kinetic force for driving the drill bit to rotate so as to enable the drill bit to drill out of the surface oxide layer and / or coating of the electrical steel sheet in the test sample, power drive is not needed, the rotation speed is low, the torque is small, the drilling depth is small, and therefore the surface coating of the electrical steel sheet cannot be damaged; and through measurement, it is proved that the test result, obtained by the adoption of the unpowered drill, of the surface insulation resistance of the electrical steel sheet in the sample to be tested is high in precision.
Description
technical field [0001] The invention relates to the field of detection equipment for electrical steel sheet surface insulation resistance, in particular to a non-powered drill used for a device for measuring electrical steel sheet surface insulation resistance. Background technique [0002] The national standard GB / T 2522-2007 "Test Method for Surface Insulation Resistance and Coating Adhesion of Electrical Steel Sheet (Strip)" discloses a test method for surface insulation coating resistance (refer to International Electrotechnical Commission standard IEC 60404-11:2012 Method A) of "Magnetic Materials Part 11: Test Method for Determination of Surface Insulation Resistance of Magnetic Steel Sheet (Strip)", the specific test method is as follows: [0003] The measuring principle is based on the method first proposed by Franklin, where only one coating surface is measured at a time. Such as figure 1 Shown is the circuit diagram of the surface insulation coating resistance me...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B23B45/00B23B47/04B23Q17/20G01R27/02
CPCB23B45/00B23B45/008B23Q5/04B23Q17/20G01R27/025
Inventor 周新华邱全锋
Owner 长沙天恒测控技术有限公司