Displacement measuring device of thermal deformation temperature tester

Abstract

The utility model discloses a thermal deformation temperature tester displacement measuring device comprising a pedestal, one side of the pedestal is fixedly provided with a displacement measuring assembly, the other side of the pedestal is fixedly provided with a displacement transmission assembly, the displacement transmission assembly is arranged right below the displacement measuring assembly, the lower part of the pedestal is provided with a heating assembly, and the heating assembly is arranged right below the pedestal. The displacement measuring assembly comprises a sensor fixing frame fixedly arranged on the base. The utility model belongs to the technical field of measuring equipment, and particularly relates to a displacement measuring device of a thermal deformation temperature tester, which effectively solves the problems that the displacement measuring device of the thermal deformation temperature tester mostly adopts a mechanical dial indicator or a contact sensor which is easy to generate additional force due to mechanical contact in the measuring process, and the measuring accuracy is high. And measurement errors are caused.

Description

Technical Field

[0001] This utility model belongs to the field of measuring equipment technology, specifically referring to a displacement measuring device for a heat distortion temperature measuring instrument. Background Technology

[0002] The heat distortion temperature measuring instrument is a key device used to detect the deformation of polymer materials under specific load and temperature conditions. The accuracy of its displacement measurement directly affects the reliability of the test results.

[0003] Existing heat distortion temperature measuring instruments mostly use mechanical dial gauges or contact sensors for displacement measurement. These devices are prone to generating additional forces due to mechanical contact during the measurement process, leading to measurement errors. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model proposes a displacement measuring device for a heat distortion temperature measuring instrument, which effectively solves the problem that most displacement measuring devices for heat distortion temperature measuring instruments use mechanical dial gauges or contact sensors. These devices are prone to generating additional forces due to mechanical contact during the measurement process, leading to measurement errors.

[0005] The technical solution adopted by this utility model is as follows: The displacement measuring device of the heat distortion temperature measuring instrument proposed by this utility model includes a base, a displacement measuring component fixedly provided on one side of the base, a displacement transmitting component fixedly provided on the other side of the base, the displacement transmitting component being located directly below the displacement measuring component, a heating component being provided below the base, the displacement measuring component including a sensor fixing bracket fixedly provided on the base, a fixing seat fixedly provided above the sensor fixing bracket, a hydraulic telescopic rod fixedly provided below the fixing seat, and a laser displacement sensor fixedly provided below the hydraulic telescopic rod.

[0006] Preferably, the displacement transmission assembly includes a support frame on a base, a guide sleeve vertically fixed on the support frame, a guide rod slidably disposed inside the guide sleeve, and a sample connector fixed below the guide rod.

[0007] To achieve better heating effect, the heating component includes a heat insulation cover fixedly disposed below the base, and a heater is fixedly disposed inside the heat insulation cover.

[0008] To achieve accurate measurement more quickly, the hydraulic telescopic rod, laser displacement sensor, and guide sleeve are on the same vertical axis, ensuring that minute deformations of the sample can be transmitted to the detection end of the laser displacement sensor in a straight line, reducing measurement errors caused by lever arm deviation.

[0009] Furthermore, the lower end of the sample connector is provided with a fixing bolt that matches the sample for fixing the sample.

[0010] To achieve the effect of gravity loading, the base and the sample connector are made of metal to apply pressure to the sample and cause it to deform.

[0011] The beneficial effects of this utility model using the above structure are as follows: The displacement measuring device for heat distortion temperature measuring instrument proposed in this solution uses a non-contact monitoring method between the laser displacement sensor and the guide rod. The laser displacement sensor detects displacement changes in real time and transmits the data to the control system, thus accurately completing the heat distortion temperature measurement process. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a displacement measuring device for a heat distortion temperature measuring instrument proposed in this utility model.

[0013] Figure 2 This is a schematic diagram of the displacement measuring device of the heat distortion temperature measuring instrument proposed in this utility model from another perspective.

[0014] Figure 3 This is a cross-sectional structural diagram of a displacement measuring device for a heat distortion temperature measuring instrument proposed in this utility model.

[0015] Figure 4 This is another cross-sectional structural schematic diagram of the displacement measuring device of the heat distortion temperature measuring instrument proposed in this utility model.

[0016] The components are: 1. base, 2. displacement measurement component, 3. displacement transmission component, 4. heating component, 5. sensor mounting bracket, 6. mounting base, 7. hydraulic telescopic rod, 8. laser displacement sensor, 9. support frame, 10. guide sleeve, 11. guide rod, 12. sample connector, 13. heat insulation cover, and 14. heater.

[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the present invention proposes a displacement measuring device for a heat distortion temperature measuring instrument, including a base 1, a displacement measuring component 2 fixedly mounted on one side of the base 1, a displacement transmission component 3 fixedly mounted on the other side of the base 1, the displacement transmission component 3 being positioned directly below the displacement measuring component 2, a heating component 4 being positioned below the base 1, the displacement measuring component 2 including a sensor mounting bracket 5 fixedly mounted on the base 1, a mounting base 6 fixedly mounted above the sensor mounting bracket 5, a hydraulic telescopic rod 7 fixedly mounted below the mounting base 6, and a laser displacement sensor 8 fixedly mounted below the hydraulic telescopic rod 7.

[0020] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the displacement transmission assembly 3 includes a support frame 9 on a base 1, a guide sleeve 10 vertically fixed on the support frame 9, a hydraulic telescopic rod 7, a laser displacement sensor 8 and the guide sleeve 10 on the same vertical axis, ensuring that the minute deformation of the sample can be transmitted to the detection end of the laser displacement sensor 8 in a straight line, reducing the measurement error caused by the lever arm deviation. A guide rod 11 is slidably provided inside the guide sleeve 10, and a sample connector 12 is fixed below the guide rod 11. The lower end of the sample connector 12 is provided with a fixing bolt that matches the sample for fixing the sample. The base 1 and the sample connector 12 are made of metal material to apply pressure to the sample and cause deformation.

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the heating assembly 4 includes a heat insulation cover 13 fixedly disposed below the base 1, and a heater 14 is fixedly disposed inside the heat insulation cover 13.

[0022] In practical use, the user first fixes the test sample to the lower end of the sample connector 12 with bolts. According to the sample height, the user controls the hydraulic telescopic rod 7 to adjust the height of the laser displacement sensor 8 through the control system. At the same time, the laser displacement sensor 8 emits a laser beam aimed at the center of the upper end face of the guide rod 11. The heater 14 of the heat distortion temperature measuring instrument is activated to heat the sample below the sample connector 12. The sample deforms under the action of temperature and gravity of the guide rod 11 and the sample connector 12. The deformation is transmitted to the guide rod 11 through the sample connector 12. The guide rod 11 moves downward along the guide sleeve 10. The laser displacement sensor 8 detects the displacement change of the guide rod 11 in real time and transmits the data to the control system to complete the heat distortion temperature measurement process.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0025] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A displacement measuring device for a heat distortion temperature measuring instrument, characterized in that: The device includes a base, characterized in that: a displacement measuring component is fixedly mounted on one side of the base, a displacement transmitting component is fixedly mounted on the other side of the base, the displacement transmitting component is located directly below the displacement measuring component, a heating component is located below the base, the displacement measuring component includes a sensor mounting bracket fixedly mounted on the base, a mounting base is fixedly mounted above the sensor mounting bracket, a hydraulic telescopic rod is fixedly mounted below the mounting base, and a laser displacement sensor is fixedly mounted below the hydraulic telescopic rod.

2. The displacement measuring device for a heat distortion temperature measuring instrument according to claim 1, characterized in that: The displacement transmission assembly includes a support frame on a base, a guide sleeve vertically fixed on the support frame, a guide rod slidably disposed inside the guide sleeve, and a sample connector fixed below the guide rod.

3. The displacement measuring device for a heat distortion temperature measuring instrument according to claim 2, characterized in that: The heating assembly includes a heat insulation cover fixedly disposed below the base, and a heater is fixedly disposed inside the heat insulation cover.

4. The displacement measuring device for a heat distortion temperature measuring instrument according to claim 3, characterized in that: The hydraulic telescopic rod, laser displacement sensor, and guide sleeve are on the same vertical axis, ensuring that minute deformations of the sample can be transmitted to the detection end of the laser displacement sensor in a straight line, reducing measurement errors caused by lever arm deviation.

5. The displacement measuring device for a heat distortion temperature measuring instrument according to claim 4, characterized in that: The lower end of the sample connector is provided with a fixing bolt that matches the sample for fixing the sample.

6. The displacement measuring device for a heat distortion temperature measuring instrument according to claim 5, characterized in that: The base and the sample connector are made of metal and are used to apply pressure to the sample, causing it to deform.

Images