Device for testing compression resilience of porous fiber material

Abstract

The utility model discloses a device for testing the compression resilience of a porous fiber material. The device comprises a base, a motor, a speed reducer, a first bevel gear, a second bevel gear, a connecting shaft, a sample placing tray, a box body, a ball screw, a screw nut, a detector connecting piece, a detector clamp and a detector. The utility model develops a device which is suitable for the porous fiber material and can test the compression and rebound performance of the porous fiber material, can obtain the performance parameters of the porous fiber material in the compression and rebound process, and is beneficial to the performance research, design and improvement of novel materials. According to the utility model, the detector can be replaced according to actual requirements, measurement requirements for different measurement precisions and different measurement ranges are realized, and the device has a wider range and precision selection range and better applicable matching performance.

Description

Technical Field

[0001] The utility model relates to the field of material detection, in particular to a device for testing the compression and resilience performance of porous fiber materials. Background Art

[0002] With the rapid development of the material industry and the textile industry, many new and special fiber materials have emerged. They have different lengths, finenesses and cross-sectional shapes, and exhibit different compression and resilience properties. Therefore, the study of their compression and resilience properties is particularly important.

[0003] However, there is no equipment specifically used to test the compression and rebound performance of porous fiber materials. At present, in the compression and rebound test of porous fiber materials, some special auxiliary components are usually added to the existing instruments to complete the relevant test operations and data collection.

[0004] However, since the equipment used is not specially developed for porous fiber materials, other instruments currently used often have some problems. Some of these devices, such as the fabric style meter, are very accurate, and their measurement accuracy can reach 0.1cN, but the measurement range is too small, so when faced with some materials with large rebound force, they cannot meet the test requirements. There are also some equipment such as universal strength machines that have a considerable test range, which can reach a test range of 0 to 20kN or even higher, but at the same time, their accuracy error often reaches N, so they are more suitable for pressure testing and static analysis of metal materials. For porous fiber materials (especially aerogel / fiber composite materials), this error greatly affects the test data itself and is not applicable. Therefore, it is necessary to develop a porous fiber material compression elasticity detection device to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the technical problem that the utility model intends to solve is to provide a device for testing the compression rebound performance of porous fiber materials.

[0006] The utility model solves the technical problem by providing a porous fiber material compression rebound performance test device, characterized in that the device includes a base, a motor, a reducer, a first bevel gear, a second bevel gear, a connecting shaft, a sample placement tray, a box, a ball screw, a screw nut, a detector connector, a detector fixture and a detector;

[0007] A box is fixed on the upper part of the base; the housing of the motor is fixed inside the base, and its output end is arranged horizontally and connected to the input end of the reducer; the output shaft of the reducer is fixed with a first bevel gear; the connecting shaft is rotatably installed in the base and is arranged vertically; the ball screw is vertically installed in the box, one end of which is rotatably installed on the inner wall of the box through a screw mounting piece, and the other end is fixedly connected to one end of the connecting shaft; the other end of the connecting shaft is fixed with a second bevel gear; the first bevel gear is meshed and transmission-connected with the second bevel gear; the screw nut is matched and connected with the ball screw;

[0008] One end of the detector connector is fixed on the lead screw nut, and the other end extends out of the box and is installed with a detector clamp; the detector clamp is used to clamp detectors with different measurement accuracy and measurement range; the detector is clamped in the detector clamp; a detector jack is provided inside the detector connector, which is communicated with the signal connector of the detector; the sample placement tray is fixed on the base, facing the detector.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] (1) The utility model develops a device suitable for testing the compression and rebound properties of porous fiber materials, which can obtain the performance parameters of the porous fiber materials during the compression and rebound process, and is helpful for the performance research, design and improvement of new materials.

[0011] (2) The utility model can replace the detector according to actual needs to achieve measurement requirements for different measurement accuracies and different measurement ranges, and has a wider range of measurement range and accuracy selection and better applicability and matching.

[0012] (3) Compared with the belt drive deceleration of the YG821L fabric style meter, the utility model adopts a gear set with higher transmission accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a longitudinal section schematic diagram of the overall structure of the utility model from a left perspective;

[0015] Figure 3 It is a schematic top view of the overall structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the installation of the detector and the detector connector of the present utility model.

[0017] In the figure, base 1, range switch 2, power switch 3, operation panel 4, motor 5, reducer 6, first bevel gear 7, second bevel gear 8, connecting shaft 9, sample placement tray 10, box body 11, lower dust strip 12, upper dust strip 13, top cover 14, ball screw 15, screw nut 16, screw mounting 17, optical bar guide 18, detector connector 19, detector fixture 20, detector 21, detector jack 22, detector placement box mounting 23, detector placement box 24. DETAILED DESCRIPTION

[0018] The specific embodiments of the present invention are given below. The specific embodiments are only used to further illustrate the present invention in detail and do not limit the protection scope of the claims of the present invention.

[0019] The utility model provides a porous fiber material compression rebound performance test device (hereinafter referred to as the device), characterized in that the device includes a base 1, a motor 5, a reducer 6, a first bevel gear 7, a second bevel gear 8, a connecting shaft 9, a sample placement tray 10, a box 11, a ball screw 15, a screw nut 16, a screw mounting member 17, a detector connecting member 19, a detector fixture 20 and a detector 21;

[0020] A box body 11 is fixed to the upper part of the base 1; the housing of the motor 5 is fixed inside the base 1, and its output end is arranged horizontally and connected to the input end of the reducer 6; the output shaft of the reducer 6 is fixed with a first bevel gear 7 through a key; the connecting shaft 9 is rotatably mounted in the base 1 through a bearing and is arranged vertically; the ball screw 15 is vertically mounted in the box body 11, one end of which is rotatably mounted on the inner wall of the box body 11 through a screw mounting member 17, and the other end is fixedly connected to one end of the connecting shaft 9; the other end of the connecting shaft 9 is fixed with a second bevel gear 8 through a key; the first bevel gear 7 is meshed and transmission-connected with the second bevel gear 8; the screw nut 16 is matched and connected with the ball screw 15;

[0021] One end of the detector connector 19 is fixed on the lead screw nut 16, and the other end extends out of the box 11 and is installed with a detector clamp 20; the detector clamp 20 is used to clamp detectors 21 with different measurement accuracy and measurement range; the detector 21 is clamped in the detector clamp 20; a detector jack 22 is provided inside the detector connector 19, which is communicated with the signal connector of the detector 21 to transmit data; the sample placement tray 10 is fixed on the base 1, facing the detector 21.

[0022] Preferably, the porous fiber material includes aerogel fiber material, thermal insulation wadding, various fabrics and fiber elastic foaming material.

[0023] Preferably, the device also includes a range switch 2; range switches 2 with different ranges and precisions are arranged on the front end surface of the base 1; all range switches 2 are communicatively connected with the motor 5, and the start, stop and operation of the motor 5 are controlled by different range switches 2.

[0024] Preferably, the device further comprises a power switch 3; the power switch 3 is arranged on the front end surface of the base 1 and is used to control the start and stop of the entire device.

[0025] Preferably, the device further comprises an operation panel 4, which is arranged on the front face of the base 1. The operation panel 4 can display and record the data measured by the detector and the operation displacement curve of the detector 21 and the force curve of the sample to be tested in real time, and can set the deformation displacement or pressure peak value of the test in advance.

[0026] Preferably, the device further comprises a top cover 14 ; the top cover 14 is detachably fixed to the top of the box body 11 .

[0027] Preferably, the device also includes a lower dust strip 12 and an upper dust strip 13; the bottom of the lower dust strip 12 is fixed to the bottom of the box body 11, and the top is fixed to the bottom of the detector connecting piece 19; the top of the upper dust strip 13 is fixed to the top cover 14 or the top side wall of the box body 11, and the bottom is fixed to the top of the detector connecting piece 19; the lower dust strip 12 and the upper dust strip 13 can be stretched or compressed as the detector connecting piece 19 moves up and down, ensuring that dust and other impurities will not enter the interior of the box body 11, thereby ensuring transmission accuracy.

[0028] Preferably, the device further comprises an optical bar guide rail 18; the optical bar guide rail 18 is vertically fixed in the box body 11, and the detector connecting member 19 is slidably mounted on the optical bar guide rail 18, and the optical bar guide rail 18 plays a role of auxiliary support and guidance for the detector connecting member 19. Preferably, there are two optical bar guide rails 18, which are symmetrically arranged in the box body 11.

[0029] Preferably, the device further comprises a detector placement box 24 ; the detector placement box 24 is fixed to the outer side wall of the base 1 through a detector placement box mounting member 23 , and is used for placing detectors 21 with different measurement accuracy and measurement range.

[0030] Preferably, the motor 5 is a servo motor to ensure that the detector 21 runs stably at a speed of 2 mm / min.

[0031] Preferably, the signal connector between the detector jack 22 and the detector 21 adopts the currently common 3.5 mm jack / head, which is easy to replace.

[0032] The working principle and workflow of the utility model are:

[0033] First, turn on the device through the power switch 3, place the sample to be tested on the sample placement tray 10, and estimate the range according to the textile professional knowledge and the material properties of the sample to be tested; set the deformation displacement or pressure peak value of the test through the operation panel 4, and select a suitable detector 21 according to the estimated range;

[0034] Then the signal connector of the detector 21 is inserted into the detector jack 22 and the detector 21 is fixed by the detector clamp 20; then the corresponding range switch 2 is pressed, the motor 5 rotates to drive the first bevel gear 7 to rotate, the first bevel gear 7 cooperates with the second bevel gear 8 to change the transmission direction, the second bevel gear 8 drives the ball screw 15 to rotate, and then drives the screw nut 16 and the detector 21 to move downward at a speed of 2mm / min;

[0035] When the detector 21 contacts the sample to be tested (i.e., the detector 21 detects force), the detector 21 automatically records the position H1 at that time; then the test starts, and the display screen of the operation panel 4 and the external computer display and record the running displacement of the detector 21 and the force value of the sample to be tested that change with time during the test in real time;

[0036] When the detector 21 reaches the set deformation displacement or pressure peak, the detector 21 automatically records the position H2 at this time, and then obtains the overall displacement ΔH1=H1-H2 during the compression process; then the motor 5 starts to reverse, driving the lead screw nut 16 and the detector 21 to move upward at a speed of 2mm / min. At this time, the display screen of the operation panel 4 and the external computer display and record the running displacement of the detector 21 and the force value of the test sample that change with time during the rising process in real time;

[0037] When the detector 21 detects that the force is 0, the detector 21 automatically records the position H3 at this time, and then obtains the overall displacement ΔH2=H3-H2 during the rebound process;

[0038] Then the detector 21 continues to move upward to the initial position, and the test ends. The display screen of the operation panel 4 and the external computer display the running displacement curve of the detector 21 and the force curve of the sample to be tested during the whole process, and calculate the rebound rate Rg=ΔH2 / ΔH1×100% of the sample to be tested.

[0039] Anything not described in the present invention is applicable to the prior art.

Claims

1. A porous fiber material compression rebound performance testing device, characterized in that: The device comprises a base (1), a motor (5), a reducer (6), a first bevel gear (7), a second bevel gear (8), a connecting shaft (9), a sample placement tray (10), a box (11), a ball screw (15), a screw nut (16), a detector connector (19), a detector fixture (20) and a detector (21); A box body (11) is fixed on the upper part of the base (1); the housing of the motor (5) is fixed inside the base (1), and the output end thereof is arranged horizontally and connected to the input end of the reducer (6); the output shaft of the reducer (6) is fixed with a first bevel gear (7); the connecting shaft (9) is rotatably mounted in the base (1) and is arranged vertically; the ball screw (15) is vertically mounted in the box body (11), one end of which is rotatably mounted on the inner wall of the box body (11) through a screw mounting member (17), and the other end is fixedly connected to one end of the connecting shaft (9); the other end of the connecting shaft (9) is fixed with a second bevel gear (8); the first bevel gear (7) is meshed and transmission-connected with the second bevel gear (8); the screw nut (16) is cooperatively connected with the ball screw (15); One end of the detector connecting piece (19) is fixed on the lead screw nut (16), and the other end extends out of the box body (11) and is installed with a detector clamp (20); the detector clamp (20) is used to clamp detectors (21) with different measurement accuracy and measurement range; the detector (21) is clamped in the detector clamp (20); a detector jack (22) is arranged inside the detector connecting piece (19) and is communicatively connected with a signal connector of the detector (21); a sample placement tray (10) is fixed on the base (1) and is directly opposite to the detector (21).

2. The porous fiber material compression rebound performance testing device according to claim 1, characterized in that: The device also includes a range switch (2); the range switches (2) with different ranges and precisions are arranged on the front end surface of the base (1); and all the range switches (2) are communicatively connected with the motor (5).

3. The porous fiber material compression rebound performance testing device according to claim 1, characterized in that: The device also includes a power switch (3); the power switch (3) is arranged on the front end surface of the base (1).

4. The porous fiber material compression rebound performance testing device according to claim 1, characterized in that: The device also includes an operating panel (4); the operating panel (4) is arranged on the front end surface of the base (1).

5. The porous fiber material compression rebound performance testing device according to claim 1, characterized in that: The device also includes a top cover (14); the top cover (14) is detachably fixed to the top of the box body (11).

6. The porous fiber material compression rebound performance testing device according to claim 5, characterized in that: The device further comprises a lower dustproof strip (12) and an upper dustproof strip (13); the bottom of the lower dustproof strip (12) is fixed to the bottom of the box body (11), and the top is fixed to the bottom of the detector connecting piece (19); the top of the upper dustproof strip (13) is fixed to the top cover (14) or the top side wall of the box body (11), and the bottom is fixed to the top of the detector connecting piece (19); the lower dustproof strip (12) and the upper dustproof strip (13) can be stretched or compressed as the detector connecting piece (19) moves up and down.

7. The porous fiber material compression rebound performance testing device according to claim 1, characterized in that: The device also includes a light bar guide rail (18); the light bar guide rail (18) is vertically fixed in the box body (11), and the detector connecting piece (19) is slidably installed on the light bar guide rail (18).

8. The porous fiber material compression rebound performance testing device according to claim 1, characterized in that: The device also includes a detector placement box (24); the detector placement box (24) is fixed to the outer side wall of the base (1) through a detector placement box mounting member (23) and is used to place detectors (21) with different measurement accuracy and measurement range.

9. The porous fiber material compression rebound performance testing device according to claim 1, characterized in that: The motor (5) is a servo motor.

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