A device for detecting the bending strength of needle-punched glass fiber aerogel composite material

Abstract

The utility model relates to the field of needle punching glass fiber aerogel composite material bending strength, specifically relates to a kind of detection device for needle punching glass fiber aerogel composite material bending strength, it includes: detection platform, the detection platform upper portion is provided with pedestal, the pedestal upper portion is provided with multidirectional clamping assembly, for limiting needle punching glass fiber aerogel composite material position, by setting the multidirectional clamping assembly, after the second pressing plate and the first pressing plate of the multidirectional clamping assembly clamping needle punching glass fiber aerogel composite material, two bending strength detection points can be provided between the first pressing plate and the second pressing plate, cooperate after the second pressing plate between clamping needle punching glass fiber aerogel composite material, realize third bending strength detection point, to realize the bending strength of single detection same needle punching glass fiber aerogel composite material three positions, not only increase detection data, and reduce the cost required for detecting bending strength.

Description

Technical Field

[0001] This utility model belongs to the field of bending strength of needle-punched glass fiber aerogel composite materials, and specifically relates to a device for testing the bending strength of needle-punched glass fiber aerogel composite materials. Background Technology

[0002] The core purpose of the bending strength test of needle-punched glass fiber aerogel composites is to evaluate the bending performance of the material under stress. When measuring the bending strength of needle-punched glass fiber aerogel composites, the three-point bending strength test method is commonly used. Specifically, the three-point bending strength test is one of the core methods for testing the mechanical properties of materials. By applying a concentrated load at the mid-span position, the deformation and fracture resistance of the material under bending load is determined.

[0003] The common three-point bending strength test method involves clamping both ends of the needle-punched glass fiber aerogel composite material and applying force to the middle of the composite material. The result is determined by plotting the relationship between the applied force and the material deformation. However, the existing three-point bending strength test for needle-punched glass fiber aerogel composite materials can only measure one position at a time, resulting in too few samples and high testing costs. Therefore, there is an urgent need for a testing device for the bending strength of needle-punched glass fiber aerogel composite materials to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing needle-punched glass fiber aerogel composite material three-point bending strength testing, which can only measure one position at a time, has too few measurement samples, and has high testing costs, so as to realize a device for testing the bending strength of needle-punched glass fiber aerogel composite material.

[0005] To achieve the above-mentioned objectives, the technical solution of this utility model is: a testing device for the bending strength of needle-punched glass fiber aerogel composite material, comprising a testing platform, a base provided on the upper part of the testing platform, and a multi-directional clamping assembly provided on the upper part of the base for limiting the position of the needle-punched glass fiber aerogel composite material.

[0006] In the aforementioned testing device for the bending strength of needle-punched glass fiber aerogel composite materials, the base and the multi-directional clamping assembly are connected by a hydraulic push rod to control the up-and-down movement of the multi-directional clamping assembly. A support column is provided on the testing platform to adjust the initial position of the multi-directional clamping assembly. Sleeves are fixedly connected to both sides of the bottom of the base, and the sleeves are respectively fitted onto the corresponding support columns.

[0007] In the above-mentioned device for testing the bending strength of needle-punched glass fiber aerogel composite material, an electric guide rail is fixedly connected to the top of the support column, a pressure sensor is installed on one side of the electric guide rail, a connector is installed at the output end of the electric guide rail, a detection plate is fixedly installed at the lower part of the connector, and the connector is electrically connected to the pressure sensor.

[0008] In the aforementioned device for testing the bending strength of needle-punched glass fiber aerogel composite materials, the multi-directional clamping assembly includes a clamping base installed at the output end of the hydraulic push rod. The upper part of the clamping base is provided with oppositely arranged sliding grooves, and sliders are slidably arranged inside the sliding grooves. A bidirectional lead screw is rotatably connected to the clamping base, and the sliders are symmetrically arranged on the two threads of the bidirectional lead screw.

[0009] In the aforementioned device for testing the bending strength of needle-punched glass fiber aerogel composite materials, a second base plate is fixedly connected to the upper part of the slider, and brackets are fixedly connected to the back sides of the two second base plates. A first electric push rod is installed on each bracket, and a first connecting plate is fixedly connected to the output end of each first electric push rod. A first push rod is fixedly connected to both ends of the first connecting plate. The first push rod slides through the corresponding second base plate, and a first base plate is fixedly connected to the opposite surface of the first push rod. The gap between the first base plate and the second base plate is controlled by the first electric push rod.

[0010] In the aforementioned testing device for the bending strength of needle-punched glass fiber aerogel composite material, a support plate is fixedly connected to the bottom of the opposite side of the second base plate. A second electric push rod is installed on each of the support plates. A second connecting plate is fixedly connected to the output end of each of the second electric push rods. A third push rod is fixedly connected to the upper part of each of the second connecting plates. A first pressure plate is fixedly connected to the upper end of each third push rod. Together with the second base plate, the edge of the needle-punched glass fiber aerogel composite material is limited.

[0011] In the above-mentioned device for testing the bending strength of needle-punched glass fiber aerogel composite material, the opposite surfaces of the second connecting plate are each fixedly connected with more than one sliding rod, and a connecting block is slidably arranged along the sliding rod. The upper part of each connecting block is fixedly connected with a second push rod, and the upper part of the second push rod is fixedly connected with a second pressure plate. Together with the first base plate, the middle part of the needle-punched glass fiber aerogel composite material is limited.

[0012] In the aforementioned testing device for the bending strength of needle-punched glass fiber aerogel composite materials, the bidirectional lead screw rotates through the fixture base, a driven gear is fixedly sleeved on the outside of the bidirectional lead screw, the driven gear is meshed with a driving gear, a motor is mounted on one side of the fixture base, the driving gear is fixedly sleeved on the output shaft of the motor, a protective shell is mounted on one side of the fixture base, and the driven gear, the driving gear, and the motor are all disposed inside the protective shell to protect the driven gear, the driving gear, and the motor.

[0013] Compared with the prior art, the device for testing the flexural strength of needle-punched glass fiber aerogel composite materials of this invention has at least the following beneficial effects: This invention relates to a device for detecting the bending strength of needle-punched glass fiber aerogel composite materials. By setting up the multi-directional clamping assembly, after the second pressure plate and the first pressure plate of the multi-directional clamping assembly clamp the needle-punched glass fiber aerogel composite material, two bending strength detection points can be provided between the first pressure plate and the second pressure plate. When the needle-punched glass fiber aerogel composite material is clamped between the second pressure plates, a third bending strength detection point is achieved. This allows for the detection of the bending strength of the same needle-punched glass fiber aerogel composite material at three locations in a single test, which not only increases the amount of test data but also reduces the cost required for testing bending strength.

[0014] This utility model discloses a device for testing the bending strength of needle-punched glass fiber aerogel composite materials. By setting the base, different heights can be adjusted, thereby adjusting the height of the lowest position of the multi-directional clamping component. According to the actual operating height of the operator, the lowest position of the multi-directional clamping component can be adjusted, making it convenient for the operator to place the needle-punched glass fiber aerogel composite material to be tested on the multi-directional clamping component, thus improving the convenience of testing the bending strength of needle-punched glass fiber aerogel composite materials.

[0015] This utility model discloses a device for testing the bending strength of needle-punched glass fiber aerogel composite materials. By setting the bidirectional lead screw, the rotation of the bidirectional lead screw controls and adjusts the relative distance between the second base plates, making it convenient to select a suitable clamping position according to the length of the needle-punched glass fiber aerogel composite material. This expands the clamping orientation of the multi-directional clamping assembly for the needle-punched glass fiber aerogel composite material and improves the applicability of the testing device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the device for testing the bending strength of needle-punched glass fiber aerogel composite materials according to this utility model. Figure 2 This is a schematic diagram of the other side of the device for testing the bending strength of needle-punched glass fiber aerogel composite materials according to this utility model. Figure 3This is a schematic diagram of the middle part of the device for testing the bending strength of needle-punched glass fiber aerogel composite materials according to this utility model; Figure 4 This is a schematic diagram of the hydraulic push rod structure of the device for testing the bending strength of needle-punched glass fiber aerogel composite materials according to this utility model; Figure 5 This invention relates to a device for testing the flexural strength of needle-punched glass fiber aerogel composite materials. Figure 4 Schematic diagram of the structure at point A in the middle.

[0017] In the diagram: 1. Testing platform; 2. Support column; 3. Pressure sensor; 4. Connector; 5. Testing plate; 6. Multi-directional clamping assembly; 61. Clamp base; 62. Sliding groove; 63. Bidirectional lead screw; 64. Slider; 65. First electric push rod; 66. First connecting plate; 67. First push rod; 68. First pressure plate; 69. Second pressure plate; 610. First base plate; 611. Second push rod; 612. Connecting block; 613. Sliding rod; 614. Second electric push rod; 615. Second connecting plate; 616. Third push rod; 617. Second base plate; 7. Hydraulic push rod; 8. Base; 9. Sleeve; 10. Driven gear; 11. Driven gear; 12. Motor; 13. Protective shell. Detailed Implementation

[0018] The following description, in conjunction with the accompanying drawings and specific embodiments, provides a more detailed description of the device for detecting the flexural strength of needle-punched glass fiber aerogel composite materials.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] This embodiment discloses a device for detecting the flexural strength of needle-punched glass fiber aerogel composite materials. By setting up the multi-directional clamping assembly 6, after the second pressure plate 69 and the first pressure plate 68 clamp the needle-punched glass fiber aerogel composite material, two flexural strength detection points can be provided between the first pressure plate 68 and the second pressure plate 69. With the needle-punched glass fiber aerogel composite material clamped between the second pressure plates 69, a third flexural strength detection point is achieved. This allows for the single detection of the flexural strength at three locations on the same needle-punched glass fiber aerogel composite material, increasing the amount of detection data and reducing the cost of flexural strength testing. (Refer to...) Figures 1-5 It mainly includes a testing platform 1, a base 8 on the upper part of the testing platform 1, and a multi-directional clamping component 6 on the upper part of the base 8 for limiting the position of the needle-punched glass fiber aerogel composite material.

[0021] like Figure 4 As shown, the base 8 and the multi-directional clamping assembly 6 are connected by a hydraulic push rod 7, which is used to control the up and down movement of the multi-directional clamping assembly 6. The testing table 1 is provided with a support column 2, which is used to adjust the initial position of the multi-directional clamping assembly 6 to accommodate users of different heights and to place the needle-punched glass fiber aerogel composite material on the multi-directional clamping assembly 6. Specifically, sleeves 9 are fixedly connected to both sides of the bottom of the base 8. These sleeves 9 are respectively fitted onto the corresponding support columns 2, and their positions on the support columns 2 are adjusted by a knob. Specifically, the knob is threadedly connected to the sleeve 9 and contacts the support column 2. When the position of the sleeve 9 on the support column 2 needs adjustment, an external force rotates the knob to remove it from contact with the support column 2. Subsequently, an external force moves the sleeve 9 up and down along the support column 2 to a suitable position, and then the knob is tightened again, thus achieving the initial position adjustment of the multi-directional clamping assembly 6. By setting the base 8 to different heights, the lowest position of the multi-directional clamping assembly 6 can be adjusted. Adjusting the lowest position of the multi-directional clamping assembly 6 according to the operator's actual operating height facilitates the placement of the needle-punched glass fiber aerogel composite material to be tested on the multi-directional clamping assembly 6, improving the convenience of testing the bending strength of the needle-punched glass fiber aerogel composite material.

[0022] like Figure 1As shown, an electric guide rail is fixedly connected to the top of the support column 2. A pressure sensor 3 is installed on one side of the electric guide rail, and a connector 4 is installed at the output end of the electric guide rail. By controlling the start and stop of the electric guide rail, the connector 4 is controlled to move along the support column 2, realizing the multi-position bending strength detection of the same needle-punched glass fiber aerogel composite material, which not only improves the detection efficiency but also reduces the detection cost. A detection plate 5 is fixedly installed at the lower part of the connector 4. The connector 4 is electrically connected to the pressure sensor 3. By detecting the force on the detection plate 5, the force on the needle-punched glass fiber aerogel composite material in contact with it is determined, and the force on the needle-punched glass fiber aerogel composite material is displayed by the pressure sensor 3. The method of displaying the pressure reading is existing technology and is not an improvement of the existing technology in this application, so it will not be described in detail here.

[0023] like Figure 4 and Figure 5 As shown, the multi-directional clamping assembly 6 includes a clamping base 61 installed at the output end of the hydraulic push rod 7. The upper part of the clamping base 61 is provided with oppositely arranged sliding grooves 62. Slider 64 is slidably arranged inside each sliding groove 62. A bidirectional lead screw 63 is rotatably connected to the clamping base 61. The slider 64 is symmetrically arranged on the two threads of the bidirectional lead screw 63. The relative movement of the slider 64 is achieved by rotating the bidirectional lead screw 63.

[0024] like Figure 5 As shown, a second base plate 617 is fixedly connected to the upper part of the slider 64. A bracket is fixedly connected to the back of each of the two second base plates 617. A first electric push rod 65 is mounted on each bracket. A first connecting plate 66 is fixedly connected to the output end of each first electric push rod 65. A first push rod 67 is fixedly connected to both ends of the first connecting plate 66. The first push rod 67 slides through the corresponding second base plate 617. A first base plate 610 is fixedly connected to the opposite surface of each first push rod 67. The gap between the first base plate 610 and the second base plate 617 is controlled by the first electric push rod 65. By setting the bidirectional lead screw 63, the rotation of the bidirectional lead screw 63 controls and adjusts the relative distance between the second base plates 617, facilitating the selection of a suitable clamping position based on the length of the needle-punched glass fiber aerogel composite material. This expands the clamping orientation of the multi-directional clamping assembly 6, increasing the applicability of the detection device.

[0025] like Figure 5As shown, the bottom of the opposite sides of the second base plate 617 is fixedly connected to a support plate, and a second electric push rod 614 is installed on each of the support plates. The output end of the second electric push rod 614 is fixedly connected to a second connecting plate 615. A third push rod 616 is fixedly connected to the upper part of the second connecting plate 615. A first pressure plate 68 is fixedly connected to the upper end of the third push rod 616. Together with the second base plate 617, the edge of the needle-punched glass fiber aerogel composite material is limited.

[0026] like Figure 5 As shown, the second connecting plate 615 has multiple sliding rods 613 fixedly connected to each other on opposite sides. Connecting blocks 612 are slidably arranged along the sliding rods 613. Second push rods 611 are fixedly connected to the upper part of each connecting block 612. Second pressure plates 69 are fixedly connected to the upper part of the second push rods 611. Together with the first base plate 610, the needled fiberglass aerogel composite material is limited in the middle. The needled fiberglass aerogel composite material between the second pressure plates 69 and the first pressure plate 68 on both sides serves as bending strength detection point one and bending strength detection point two. The needled fiberglass aerogel composite material between the second pressure plates 69 serves as bending strength detection point three. This allows for the detection of the bending strength of a single needled fiberglass aerogel composite material at three points, which not only improves the diversity of detection data but also reduces the cost of detecting the bending strength of the needled fiberglass aerogel composite material.

[0027] like Figure 5 As shown, the bidirectional lead screw 63 rotatably passes through the clamp base 61. A driven gear 10 is fixedly sleeved on the outside of the bidirectional lead screw 63. The driven gear 10 is meshed with a driving gear 11. A motor 12 is installed on one side of the clamp base 61. The driving gear 11 is fixedly sleeved on the output shaft of the motor 12. A protective shell 13 is installed on one side of the clamp base 61. The driven gear 10, the driving gear 11, and the motor 12 are all disposed inside the protective shell 13 to protect the driven gear 10, the driving gear 11, and the motor 12.

[0028] The working principle of the device for testing the flexural strength of needle-punched glass fiber aerogel composite materials: When it is necessary to clamp needle-punched glass fiber aerogel composite materials; First, the two ends of the needled fiberglass aerogel composite material are placed on the second base plate 617 by external force. Then, the motor 12 is started to drive the drive gear 11 to rotate. The rotation of the drive gear 11 drives the driven gear 10 to rotate. The rotation of the driven gear 10 drives the bidirectional lead screw 63 to rotate, controlling the second base plate 617 to move relative to the first pressure plate 68 so that the two ends of the needled fiberglass aerogel composite material are respectively located below the first pressure plate 68.

[0029] Next, the second electric push rod 614 is activated to drive the second connecting plate 615 to move downward. Subsequently, the second connecting plate 615 drives the third push rod 616 to move downward, so that the two first pressure plates 68 move downward and respectively fit and restrict the two ends of the needled glass fiber aerogel composite material.

[0030] At the same time, the downward movement of the second connecting plate 615 drives the sliding rod 613 to move downward, thereby enabling the connected second push rod 611 to move downward, and finally presenting the second pressure plate 69 moving downward to fit and restrict the middle part of the needle-punched glass fiber aerogel composite material.

[0031] When it is necessary to adjust the distance between the second pressure plate 69 and the first pressure plate 68; First, by activating the first electric push rod 65, the first connecting plate 66 is moved, which in turn moves the first push rod 67. The movement of the first push rod 67 moves the first base plate 610 connected to it, which in turn moves the second push rod 611, thus moving the second pressure plate 69.

[0032] At the same time, the movement of the first base plate 610 drives the second push rod 611 to move, which in turn drives the connecting block 612 to move along the sliding rod 613.

[0033] When it is necessary to test the flexural strength of needle-punched glass fiber aerogel composites; First, the hydraulic push rod 7 is activated to drive the multi-directional clamping assembly 6 to move upward, so that the needle-punched glass fiber aerogel composite material comes into contact with the test plate 5. Then, the hydraulic push rod 7 is activated to drive the needle-punched glass fiber aerogel composite material to detach from the test plate 5. Subsequently, the electric guide rail drives the connector 4 to move to another full strength test point for retesting.

[0034] It should be noted that, in actual implementation, the structure depicted in the accompanying drawings is not a fixed or unchanging embodiment. The components of the embodiments of this invention described and shown in these drawings can typically be arranged and designed in various different configurations. Furthermore, the accompanying drawings and abstract drawings are merely illustrative and do not represent the specific structure or actual quantity in a concrete implementation.

[0035] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The use of terms such as "a" or "an" in this specification and claims does not necessarily indicate a limitation on quantity. Terms such as "comprising" or "including" mean that the element or component preceding the word encompasses the element or component listed following the word and its equivalents, without excluding other elements or components. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0036] The exemplary embodiments of the present invention have been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the concept of the present invention, and various combinations can be made to the various technical features and structures proposed by the present invention without exceeding the protection scope of the present invention.

Claims

1. A device for testing the flexural strength of needle-punched glass fiber aerogel composite materials, characterized in that, include: The testing platform (1) has a base (8) on its upper part, and a multi-directional clamping component (6) on its upper part to limit the position of the needle-punched glass fiber aerogel composite material.

2. The device for testing the flexural strength of needle-punched glass fiber aerogel composite materials according to claim 1, characterized in that: The base (8) is connected to the multi-directional clamping assembly (6) by a hydraulic push rod (7) to control the up and down movement of the multi-directional clamping assembly (6). A support column (2) is provided on the detection table (1) to adjust the initial position of the multi-directional clamping assembly (6). Sleeves (9) are fixedly connected to both sides of the bottom of the base (8), and the sleeves (9) are respectively sleeved on the corresponding support columns (2).

3. The device for testing the flexural strength of needle-punched glass fiber aerogel composite materials according to claim 2, characterized in that: The top of the support column (2) is fixedly connected to an electric guide rail. A pressure sensor (3) is installed on one side of the electric guide rail. A connector (4) is installed at the output end of the electric guide rail. A detection plate (5) is fixedly installed at the lower part of the connector (4). The connector (4) is electrically connected to the pressure sensor (3).

4. The device for testing the flexural strength of needle-punched glass fiber aerogel composite materials according to claim 2, characterized in that: The multi-directional clamping assembly (6) includes a clamping base (61) installed at the output end of the hydraulic push rod (7). The upper part of the clamping base (61) is provided with oppositely arranged sliding grooves (62). Sliders (64) are slidably arranged inside the sliding grooves (62). A bidirectional lead screw (63) is rotatably connected to the clamping base (61). The sliders (64) are symmetrically arranged on the two threads of the bidirectional lead screw (63).

5. The device for testing the flexural strength of needle-punched glass fiber aerogel composite materials according to claim 4, characterized in that: The upper part of the slider (64) is fixedly connected to a second base plate (617). The back sides of the two second base plates (617) are fixedly connected to brackets. Each bracket is equipped with a first electric push rod (65). The output end of the first electric push rod (65) is fixedly connected to a first connecting plate (66). Both ends of the first connecting plate (66) are fixedly connected to a first push rod (67). The first push rod (67) slides through the corresponding second base plate (617). The opposite surface of the first push rod (67) is fixedly connected to a first base plate (610). The gap between the first base plate (610) and the second base plate (617) is controlled by the first electric push rod (65).

6. The device for testing the flexural strength of needle-punched glass fiber aerogel composite materials according to claim 5, characterized in that: The bottom of the opposite side of the second base plate (617) is fixedly connected to a support plate, and a second electric push rod (614) is installed on the support plate. The output end of the second electric push rod (614) is fixedly connected to a second connecting plate (615). A third push rod (616) is fixedly connected to the upper part of the second connecting plate (615). A first pressure plate (68) is fixedly connected to the upper end of the third push rod (616). Together with the second base plate (617), the edge of the needle-punched glass fiber aerogel composite material is limited.

7. The device for testing the flexural strength of needle-punched glass fiber aerogel composite materials according to claim 6, characterized in that: The second connecting plate (615) has more than one sliding rod (613) fixedly connected to each other on opposite sides. A connecting block (612) is slidably arranged along the sliding rod (613). A second push rod (611) is fixedly connected to the upper part of each connecting block (612). A second pressure plate (69) is fixedly connected to the upper part of the second push rod (611). Together with the first base plate (610), the needle-punched glass fiber aerogel composite material is limited in the middle.

8. The device for testing the flexural strength of needle-punched glass fiber aerogel composite materials according to claim 4, characterized in that: The bidirectional lead screw (63) rotates through the fixture base (61). A driven gear (10) is fixedly sleeved on the outside of the bidirectional lead screw (63). The driven gear (10) is meshed with a driving gear (11). A motor (12) is installed on one side of the fixture base (61). The driving gear (11) is fixedly sleeved on the output shaft of the motor (12). A protective shell (13) is installed on one side of the fixture base (61). The driven gear (10), the driving gear (11), and the motor (12) are all located inside the protective shell (13) to protect the driven gear (10), the driving gear (11), and the motor (12).

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