CN219455724U

CN219455724U - Constant temperature tensile test device

Info

Publication number: CN219455724U
Application number: CN202223093037.2U
Authority: CN
Inventors: 高凯; 张小明; 万乔浩; 魏继昌
Original assignee: Changming Biotechnology Suzhou Co ltd
Current assignee: Changming Biotechnology Suzhou Co ltd
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-08-01
Anticipated expiration: 2032-11-21

Abstract

The utility model relates to a constant temperature tensile test device, comprising: the stretching assembly comprises a shell, a first pull head is arranged in the shell, a movable plate which can be close to or far away from the first pull head is arranged in the shell, a second pull head is arranged on the movable plate towards the first pull head, and at least one temperature sensor is arranged in the shell; the temperature control box is internally provided with an air heating component which is connected with a pipeline, the other end of the pipeline stretches into the shell, and the temperature sensor is electrically connected with the temperature control box. The constant temperature tensile test device disclosed by the utility model has the advantages of high test result accuracy and consistent temperature at each position inside.

Description

Constant temperature tensile test device

Technical Field

The utility model relates to the technical field of tensile test devices, in particular to a constant-temperature tensile test device.

Background

The tensile test device is mainly used for carrying out tensile test on different materials in a laboratory, and most of the tensile test devices on the market at present do not have a constant temperature function, so that the tensile test device can only be used for testing at room temperature, but the room temperature is changed along with different seasons, so that the test result has errors and cannot meet the requirement of environmental temperature. Some tensile test devices are additionally provided with a water bath constant temperature system, but after the water bath constant temperature system is used for a certain time, water vapor exists in the tensile test device, and the water vapor can corrode internal parts of equipment to a certain extent, so that the precision of the equipment is damaged. Some tensile test devices adopt a heating furnace to realize heating, and a thermocouple is adopted to realize temperature feedback, and the heating mode can occupy the internal space of the tensile test device, so that the tensile test device can not test large-size parts, and the heating range is smaller.

Disclosure of Invention

Therefore, the utility model aims to solve the technical problem of providing the constant temperature tensile test device which can enable the temperatures of all the positions in the device to be consistent without damaging internal parts, has high accuracy of test results and can test larger parts.

In order to solve the technical problems, the utility model provides a constant temperature tensile test device, which comprises: the stretching assembly comprises a shell, a first pull head is arranged in the shell, a movable plate which can be close to or far away from the first pull head is arranged in the shell, a second pull head is arranged on the movable plate towards the first pull head, and at least one temperature sensor is arranged in the shell; the temperature control box is internally provided with an air heating component which is connected with a pipeline, the other end of the pipeline stretches into the shell, and the temperature sensor is electrically connected with the temperature control box.

In one embodiment of the utility model, the temperature control box further comprises a base, wherein the top of the base is fixedly connected with the shell, and the temperature control box is arranged on one side of the shell.

In one embodiment of the utility model, the air heating assembly comprises a blower having heating wires disposed therein.

In one embodiment of the utility model, the temperature control box is provided with a temperature control panel, the temperature control panel is electrically connected with the temperature control box, and the temperature control box can control the starting and stopping of the blower through the temperature measured by the temperature sensor and the set temperature range.

In one embodiment of the utility model, a sliding rail is arranged on the inner wall of the shell, and the movable plate is connected with the sliding rail in a sliding way.

In one embodiment of the present utility model, the second pull head is provided with a load cell.

In one embodiment of the utility model, the base is provided with a stretching control panel and a containing groove.

In one embodiment of the utility model, the housing is provided with an exhaust port.

In one embodiment of the present utility model, the temperature control box is provided with an air inlet.

In one embodiment of the utility model, the other side of the shell is provided with a fixed plate, and the temperature sensor is arranged on the fixed plate.

Compared with the prior art, the technical scheme of the utility model has the following advantages:

according to the constant-temperature tensile test device, the hot air is blown into the shell through the blower, so that the interior of the shell can be heated uniformly to reach a target temperature range, a test result has a higher reference value and persuasion, the test result data is more accurate, and the reliability is higher; other gases cannot be generated in the test process to influence the internal parts of the tensile test device, and the space in the shell is larger, so that the larger parts can be tested.

Drawings

In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings.

FIG. 1 is a schematic view of a constant temperature tensile test apparatus according to the present utility model;

FIG. 2 is a front view of a constant temperature tensile test apparatus of the present utility model;

fig. 3 is a cross-sectional view of A-A in fig. 1.

Description of the specification reference numerals: 1. a stretching assembly; 2. a base; 3. a temperature control box; 4. a pipe; 10. a housing; 11. a slide rail; 12. a movable plate; 13. a first slider; 14. a second slider; 15. a glass door; 16. a fixing plate; 17. a temperature sensor; 21. stretching the control panel; 22. supporting feet; 23. a receiving groove; 31. a temperature control panel; 32. a blower; 33. an air inlet; 101. an exhaust port; 131. a load cell.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.

Referring to fig. 1, a constant temperature tensile test apparatus of the present utility model includes: the stretching assembly 1, the stretching assembly 1 comprises a shell 10, a first pull head 13 is arranged in the shell 10, a movable plate 12 which can be close to or far away from the first pull head 13 is arranged in the shell 10, a second pull head 14 is arranged on the movable plate 12 towards the first pull head 13, and at least one temperature sensor 17 is arranged in the shell 10; the temperature control box 3, be equipped with air heating component in the temperature control box 3, air heating component is connected with pipeline 4, and the pipeline 4 other end stretches into inside the casing 10, temperature sensor 17 and temperature control box 3 electrical connection.

Referring to fig. 1 and 2, the left and right sides in the housing 10 are provided with vertical sliding rails 11, and two ends of the movable plate 12 are slidably connected with the left and right sliding rails 11. A motor is arranged between the shell 10 and the slide rail 11, and drives the screw rod to rotate so as to drive the movable plate 12 to move up and down. The second pull head 14 is detachably connected to the lower side of the movable plate 12, the top of the second pull head 14 faces downwards and can move up and down along with the movable plate 12, and a force sensor 131 is arranged on the front side of the second pull head 14 and can measure the force value in a tensile test. The bottom of the shell 10 is detachably connected with a first pull head 13, and the first pull head 13 corresponds to the second pull head 14 in position. The first slider 13 and the second slider 14 can be replaced with other types of sliders according to different materials and parts. The front side of the shell 10 is provided with two visual glass doors 15, so that the stretching condition of parts can be directly observed, and sealing strips are fixed at the positions of gaps between the glass doors 15 and the shell 101 and between the two glass doors 15, so that the glass doors 15 can be kept in a sealing state when being closed. The top of the housing 10 is provided with a circular exhaust port 101 to allow the blower 32 to maintain a steady pressure within the housing 10 during operation. The rear side of the housing 10 is provided with a fixing plate 16, and four corner positions at the front side of the fixing plate 16 are respectively provided with a temperature sensor 17.

The front side of the base 2 is inclined forwards, the right side of the front side is provided with a stretching control panel 21, the stretching control panel 21 is connected with an external computer, and the stretching control panel 21 can control the up-and-down movement and the stress of the movable plate 12. The front side of the base 2 is also provided with a receiving slot 23 for placing a maintenance tool and also a replacement pull head. The four corners of the bottom of the base 2 are respectively provided with a supporting leg 22, which can adjust the balance of the stretching assembly 1 and can play a role in shock absorption.

Referring to fig. 3, a temperature control box 3 is disposed at the left side of the base 2, an air heating component is disposed in the temperature control box 3, the air heating component includes a blower 32, and an electric heating wire is disposed in the blower 32, so that the blower 32 can blow out hot air through the electric heating wire. The air outlet of the blower 32 is connected with one end of the pipeline 4, and the other end of the pipeline 4 passes through the fixing plate 16 and stretches into the shell 10. An air inlet 33 is arranged at the bottom of the temperature control box 3, and the air blower 32 sucks air through the air inlet 33. The temperature control panel 31 is provided on the front side of the temperature control box 3, and a temperature range to be maintained in the casing 10 can be inputted through the temperature control panel 31. The temperature control panel 31 and the temperature sensor 17 are electrically connected to the temperature control box 3, respectively. The temperature sensor 17 can measure the temperature in the housing 10, and the temperature control box 3 controls the start and stop of the blower 32 according to the temperature measured by the temperature sensor 17 and the inputted temperature range.

The air inlet 33 and the air outlet 101 can be connected through a pipeline, so that air in the shell 10 can be circulated through the blower 32, and energy consumption is reduced.

When in use, the two ends of the part to be detected are fixed between the first pull head 13 and the second pull head 14, then the glass door 15 is closed, the temperature range in the shell 10 is set through the temperature control panel 31, and the test value is set through the stretching control panel 21; after the setting is completed, the blower 32 starts to work, hot air is blown into the shell 10, the temperature in the shell 10 is gradually increased, and when the temperature sensor 17 detects that the temperature reaches the set temperature range, the blower 32 stops working; the movable plate 12 drives the second pull head 14 to move upwards while the blower 32 stops working, and the part to be detected starts to be stressed until the set experimental value is reached; after the test is completed, the computer can display a stress curve graph in the test process for data analysis. If during the test the temperature sensor 17 detects that the temperature in the housing 10 gradually falls outside the set temperature range, the blower 32 will be started again until the temperature reaches within the set range.

According to the constant-temperature tensile test device, the air blower 32 blows hot air into the shell 10, so that the interior of the shell 10 can be heated uniformly to reach a target temperature range, a test result has higher reference value and persuasion, test result data are more accurate, and reliability is higher; other gases are not generated in the test process to influence the internal parts of the tensile test device, the space in the shell 10 is larger, and the larger parts can be tested; through setting up 4 temperature sensor 17, can guarantee to evenly be heated in the casing 10, each position temperature is the same, makes the test result more accurate.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.

Claims

1. A constant temperature tensile test device, comprising:

the stretching assembly comprises a shell, a first pull head is arranged in the shell, a movable plate which can be close to or far away from the first pull head is arranged in the shell, a second pull head is arranged on the movable plate towards the first pull head, and at least one temperature sensor is arranged in the shell;

the temperature control box is internally provided with an air heating component which is connected with a pipeline, the other end of the pipeline stretches into the shell, and the temperature sensor is electrically connected with the temperature control box.

2. The constant temperature tensile test device according to claim 1, further comprising a base, wherein the top of the base is fixedly connected with the housing, and the temperature control box is arranged on one side of the housing.

3. The constant temperature tensile test device according to claim 1, wherein: the air heating assembly comprises a blower, and an electric heating wire is arranged in the blower.

4. The constant temperature tensile test device according to claim 2, wherein: the temperature control box is provided with a temperature control panel, the temperature control panel is electrically connected with the temperature control box, and the temperature control box can control the start and stop of the blower through the temperature measured by the temperature sensor and the set temperature range.

5. The constant temperature tensile test device according to claim 1, wherein: the inner wall of the shell is provided with a sliding rail, and the movable plate is in sliding connection with the sliding rail.

6. The constant temperature tensile test device according to claim 1, wherein: and a force transducer is arranged on the second pull head.

7. The constant temperature tensile test device according to claim 2, wherein: the base is provided with a stretching control panel and a containing groove.

8. The constant temperature tensile test device according to claim 1, wherein: the shell is provided with an exhaust port.

9. The constant temperature tensile test device according to claim 1, wherein: and an air inlet is arranged on the temperature control box.

10. The constant temperature tensile test device according to claim 1, wherein: the other side of the shell is provided with a fixing plate, and the temperature sensor is arranged on the fixing plate.