Temperature field detection device for cylindrical parts
A detection device and temperature field technology, which is applied in measuring devices, radiation pyrometry, optical radiation measurement, etc., can solve the problems of sticking temperature sensors such as looseness, interference, and insufficient quantity, so as to achieve true and reliable sampling data and simplify detection steps , the effect of reducing the cost of testing
Inactive Publication Date: 2021-06-25
CHONGQING UNIV OF TECH
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Problems solved by technology
In order to understand the temperature and temperature distribution of the cylinder liner when the engine is working, a method of pasting a large number of temperature sensors on the outer wall of the cylinder liner to collect experimental data is usually used. The method of pasting the temperature sensors has the following defects: 1. It is easy to appear weak sticking There are gaps or even falling off; 2. Too many temperature sensors pasted on the outer wall will interfere with the temperature field of the cylinder liner itself; 3. The space on the outer wall of the cylinder liner is limited, and the space for pasting the sensors is also limited, resulting in the location of sampling Insufficient quantity to measure a full range of temperature and temperature field parameters
This method can solve the problem of not sticking the temperature sensor firmly to a certain extent, but it still cannot solve the problem of disturbing the temperature field and insufficient number of samples
Method used
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[0031] see figure 1 , a temperature field detection device for cylindrical parts includes a square table-shaped test bench 8, a base mechanism, an upper end cover mechanism and a sensing mechanism.
[0032] see figure 2 , The base mechanism includes a disc-shaped base 6, a base motor 9 and an insulating plug 17. The base motor 9 is a two-phase 57 series hybrid stepper motor. The base 6 is installed on the test bench 8 through the bearing and the rotating shaft; the output shaft of the base motor 9 is fixedly connected to the lower end of the rotating shaft through the base bearing 7, and the base bearing 7 is a rolling bearing. And the base motor 9 is located on the bottom surface of the test bench 8 . The insulating plug 17 is cylindrical, and the insulating plug 17 is fixedly installed on the top surface of the base 6 through the screw 8 in the axial center.
[0033] see figure 1 and figure 2 , The upper end cap mechanism includes a heating rod 1 and a disc-shaped up...
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The invention relates to a temperature field detection device for cylindrical parts, and belongs to the technical field of temperature measurement. The device includes: a test bed, a base mechanism, an upper end cover mechanism and a sensing mechanism, wherein the base mechanism comprises a disc-shaped base, a base motor and an insulating plug; the upper end cover mechanism comprises a heating rod and an upper end cover; the sensing mechanism comprises an infrared temperature sensor, a sliding block, a lead screw and a lead screw motor. the infrared temperature sensor is arranged on the lead screw through threaded connection of the sliding block and the lead screw, and the lead screw motor drives the lead screw to rotate; and the screw rod is vertically fixed on the test bed. During detection, the detected cylinder is sleeved on the insulating plug, the heating rod is placed in the detected cylinder, and the upper end cover covers the upper end opening of the detected cylinder; the distance between the temperature sensor and the detected cylinder is 50 mm, and the temperature sensor is right opposite to the axis of the detected cylinder. According to the invention, the rotary motion of the detected cylinder and the lifting motion of the temperature sensor are combined, so that the temperature field parameters of the detected cylinder can be accurately acquired.
Description
technical field [0001] The invention belongs to the technical field of temperature measurement, and in particular relates to a temperature field detection device for cylindrical parts. Background technique [0002] Cylindrical parts are a common type of parts and are widely used in machinery, electronics, chemicals, textiles and other fields. Among them, the temperature field is an important parameter of cylindrical parts such as automobile cylinder liners and printing plate cylinders. For example, the temperature distribution of automobile cylinder liners and the temperature rise rate at different positions have a great relationship with the performance and efficiency of the engine. It has an important influence, so it is of great practical significance to study the temperature field parameters of cylindrical parts. In order to understand the temperature and temperature distribution of the cylinder liner when the engine is working, a method of pasting a large number of tem...
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IPC IPC(8): G01J5/02
CPCG01J5/02G01J5/0275
Inventor 苗恩铭冉靖骆辉蔡站文
Owner CHONGQING UNIV OF TECH