A weight-variable counterweight device for cable thermal extension test and its use method
A counterweight device, a technology for testing, applied in measuring devices, using stable tension/pressure to test the strength of materials, instruments, etc., can solve the problems of low efficiency, limited hanging weight accuracy, inconvenient operation, etc., and achieve high work efficiency. , improve the accuracy, the effect of convenient operation
Active Publication Date: 2021-07-09
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The standard requires that the thickness of the dumbbell sample should be 0.8mm~2.0mm, so the hanging weight of the cable thermal extension test configuration should be between 65.3g~163.3g, and the weight can be changed according to the needs. The weight configuration using weights has limited accuracy, and Inconvenient operation and low efficiency
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] Referring to the accompanying drawings, a variable weight counterweight device for cable thermal extension test and its usage method according to the present invention will be described in detail below.
[0034] Such as figure 1 , figure 2 As shown, a smart meter infrared communication performance detection system of the present invention has a structure including a box body 1, a feeding mechanism 2, a transmission component, a counterweight 5, a weighing tray 6 and counterweight particles 13, and the feeding mechanism 2 Set in the inner cavity of the box body 1, the front side of the box body 1 is provided with a display device 8 and a control system button 7, the transmission part is provided at one end of the box body, and a counterweight 5 is provided at the outlet end of the transmission part. The weight 5 is placed on the weighing tray 6, and the weighing system in the weighing tray 6 is connected with the control system in the box body 1, the display device and...
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
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a weight-variable counterweight device and method for cable thermal extension test, which comprises a box body, a feeding mechanism, a transmission part, a counterweight block, a weighing tray and counterweight particles, and the feeding mechanism is arranged in the box body cavity, the front side of the box is provided with a display device and a control system button, the transmission part is arranged at one end of the box, and the outlet end of the transmission part is provided with a counterweight, and the counterweight is placed on the weighing tray. The weighing system in the weighing tray is connected with the control system in the box, the display device and the motor in the feeding mechanism. The counterweight device can accurately provide the weight-variable counterweight required for the cable thermal extension test, thereby improving the accuracy and test efficiency of the cable thermal extension test. The counterweight method is intuitive and easy to operate when performing the counterweight, thereby ensuring the accuracy of the counterweight.
Description
technical field [0001] The invention relates to a counterweight device, in particular to a weight-variable counterweight device for cable thermal extension test and its application method. Background technique [0002] Cable thermal extension test is an important index to test the mechanical and physical properties of the cable insulation layer. Thermal extension is a test method for evaluating the plastic deformation and permanent deformation of cable rubber insulation and sheath insulation materials under heat and load. Under the condition of a much higher test temperature and a certain load, the change of the elongation rate after a short period of heat aging reflects the plastic deformation and permanent deformation. [0003] In the cable thermal extension test, it is necessary to provide a certain load for the cable dumbbell sample, and the standard requires that the weight of the hanging weight is 0.2N / mm 2 , equivalent to 20.408g / mm 2 , the weight of the hanging wei...
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): G01N3/14
CPCG01N3/14G01N2203/0017G01N2203/0033G01N2203/0075G01N2203/0226
Inventor 张围围许冬冬张建王安东赵富强许光可李星陈令英王楠王广涛
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY