A static stall torque test device for electric tools
A technology for electric tools and testing devices, which is applied in the field of static stall torque testing devices for electric tools, to achieve the effects of ensuring safety, high testing accuracy, and friendly man-machine interface
Active Publication Date: 2020-01-07
中认尚动(上海)检测技术有限公司 +1
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
At present, none of the static stall torque measuring instruments in domestic power tool laboratories can meet this requirement.
Method used
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[0026] Below in conjunction with accompanying drawing, the present invention will be further described as follows:
[0027] As shown in the drawings, the present invention includes: test tool 16, data acquisition instrument 17, industrial computer 18, display 19 and electrical control system 20, test tool 16 includes torque sensor 1, support one 2, chuck one 3, metal bar Connecting rod 4, chuck 2 5, angle sensor 6, bracket 2 7, chuck 3 8, fixture 9, electric tool under test 10, lifting platform 11, cylinder 12, lifting handle 13, bracket 1 2, bracket 2 7, Lifting platform 11 is installed upright on tooling table 14, and support one 2, lifting platform 11 are respectively positioned at the left and right sides of support two 7, and the left and right sides of support one 2 are respectively coaxially connected with torque sensor 1, chuck one 3, support The left and right sides of two 7 are respectively coaxially connected with chuck two 5, chuck three 8, between chuck two 5 and ...
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The invention relates to novel static blocking torque testing device for an electric tool. The device comprises a test tool, a data collecting instrument, an industrial computer and a display. The test tool comprises a bracket 1, a bracket 2, a lifting platform and a cylinder, the left and right sides of the bracket 1 are coaxially connected to a torque sensor and a chuck 1, and the bracket 2 is coaxially connected to a chuck 2, an angle sensor and a chuck 3. A metal bar connecting rod is mounted between the chuck 1 and the chuck 2, and the chuck 3 extends from one end of the metal bar connecting rod. A tested electric tool is fixed to the lifting platform, and a drill chuck of the tested electric tool clamps the metal bar connecting rod. A cylinder driving rod is connected to a power switch of the tested electric tool, the cylinder and the tested electric tool are connected to the industrial computer which is connected to the data collecting instrument and the display, and the data collecting instrument is connected to the torque sensor and the angle sensor. The novel static blocking torque testing device has the advantages of flexible and convenient operation and adjustment, completely automated whole test process, high test accuracy and good repeatability.
Description
[technical field] [0001] The invention relates to the technical field of electric tool testing, in particular to an electric tool static locked-rotor torque testing device. [Background technique] [0002] Static locked-rotor torque is a unique test item in the safety standards of electric drills and electric hammer products. The purpose is to avoid the large torque reaction force caused by the stuck drill bit being transmitted to the user during use, resulting in further personal danger after loss of control. The size of the static stall torque is related to the parameters of the built-in motor of the electric tool. The larger the motor power and the lower the speed, the greater the stall torque. The static stall torque value is a parameter that changes with the stall time. When a stall occurs, the torque value will rise instantaneously and fall back quickly in a short time. As the stall time increases, the torque value tends to Stablize. [0003] In the national standard ...
Claims
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IPC IPC(8): G01M13/00G01L5/00
CPCG01L5/0042G01M13/00
Inventor 尹海霞陆富强陈建秋袁元黄莉敏
Owner 中认尚动(上海)检测技术有限公司