CN223664414U

CN223664414U - A rubber durability testing platform

Info

Publication number: CN223664414U
Application number: CN202423144054.3U
Authority: CN
Inventors: 王森毅; 刘胜春; 司佳钧; 孙宝东; 张雪松; 王建
Original assignee: State Grid Electric Power Engineering Research Institute Co ltd; China Electric Power Research Institute Co Ltd CEPRI
Current assignee: State Grid Electric Power Engineering Research Institute Co ltd; China Electric Power Research Institute Co Ltd CEPRI
Priority date: 2024-12-19
Filing date: 2024-12-19
Publication date: 2025-12-12
Anticipated expiration: 2034-12-19

Abstract

This utility model relates to a rubber durability testing platform, belonging to the field of rubber performance testing technology. It includes a testing platform with a mounting base fixedly connected to it. The mounting base has two sets of mounting grooves, on which testing rods are slidably mounted. Each testing rod has a sliding groove on its opposite side. A fixed seat is fixedly mounted at the bottom of each sliding groove. An adjusting screw is disposed within the sliding groove and threadedly connected to the upper end of the testing rod. A toothed plate is rotatably mounted on the adjusting screw, and a movable seat is fixedly mounted on the toothed plate, positioned directly above the fixed seat. Limit frames are fixedly mounted on both the fixed seat and the movable seat. Anti-slip textures are provided at the upper end of the fixed seat and the lower end of the movable seat. A rubber strip is placed between the fixed seat and the movable seat. This utility model's testing platform achieves the technical effect of integrated measurement of the tensile and compressive properties of rubber strips.

Description

Rubber durability test board

Technical Field

The utility model belongs to the technical field of rubber performance detection, and particularly relates to a rubber durability test board.

Background

Rubber is a polymer compound which has good elasticity, insulation, water impermeability and air impermeability, and thus is widely used in industry and life.

Rubber is an important polymer material and has wide application and important position in various fields. With the continuous progress of technology and the continuous increase of demands of people, the types and performances of rubber products are also improved and improved continuously. The durability of rubber is critical to many areas and industries, and is directly related to the life, safety and economic benefits of the product. The rubber durability test is a series of tests performed to evaluate the performance stability and durability of a rubber material or article over a long period of use. But most of the existing rubber test tables can only test the single performance of rubber, namely tension or pressure, and cannot be adjusted, so that the rubber test efficiency is reduced, and the safety and reliability of rubber products are affected.

The utility model in China with the publication number of CN211374307U discloses a simple rubber stretching and compressing performance detection device, which comprises a base station, wherein a computer auxiliary device, a motor, a bidirectional screw rod, a sliding block a, a sliding block b, a three-jaw chuck a, a three-jaw chuck b, a PCB monitor I, PCB monitor II, a laser range finder and the like are arranged, so that two ends of rubber to be detected can be fixed by the three-jaw chuck a and the three-jaw chuck b, the rubber is stretched and compressed under the driving of the motor, and parameters obtained through experiments can be obtained through the computer auxiliary device. But the tension and pressure measurement in the prior art are measured by clamping two ends of the rubber through the chuck, and when the pressure measurement is performed, two ends of the rubber are partially clamped in the chuck, so that the accuracy of the measurement result is affected.

Disclosure of utility model

The utility model aims to provide a rubber durability test board, which solves the problems of single performance measurement and inaccurate pressure measurement of rubber in the background art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The utility model provides a rubber durability testboard, includes the laboratory bench, fixedly connected with mount pad on the laboratory bench, two sets of mounting grooves have been seted up on the mount pad, two sets of equal slidable mounting has the experimental rod on the mounting groove, two all seted up the spout on the side that the experimental rod is relative, the bottom fixed mounting of spout has the fixing base, be provided with adjusting screw in the spout, threaded connection between the upper end of adjusting screw and experimental rod, rotate on the adjusting screw and install the pinion rack, fixed mounting has the removal seat on the pinion rack, the removal seat is located the fixing base directly over, fixed mounting has spacing frame on fixing base and the removal seat, the upper end of fixing base with the lower extreme of removal seat all is provided with the anti-skidding line, be used for placing the rubber strip between fixing base and the removal seat, fixed mounting has the pressure gauge that draws on the mount pad, be provided with actuating mechanism on the mount pad.

Specifically, actuating mechanism includes fixed mounting at the driving motor on the mount pad, rotates the two-way lead screw of installing in the mounting groove and two sets of slides of slidable mounting in the mounting groove, driving motor's drive shaft and two-way lead screw coaxial fixed connection, two sets of the slide all with two-way lead screw threaded connection, opposite direction motion, the upper end of slide and the bottom fixed connection of experimental rod.

Specifically, the mounting groove internal fixation is provided with the gag lever post, it has the spacing groove that corresponds with the gag lever post to open on the slide, the slidable of gag lever post passes corresponding spacing groove.

Optionally, a limiting groove is formed in the side wall of the mounting groove, a limiting block is slidably mounted in the limiting groove, and the limiting block is fixedly mounted on the side face of the sliding seat.

Optionally, the movable cavity has been seted up in the experimental rod, slidable mounting has the fixture block in the movable cavity, the one end and the pinion rack looks adaptation of fixture block, fixed mounting has reset spring in the movable cavity, reset spring's one end and fixture block fixed connection, the movable cavity inner wall is connected to the other end.

Optionally, the movable groove has been seted up on the experimental rod, the movable groove is linked together with the activity intracavity portion, slidable mounting has the push pedal in the movable groove, push pedal and fixture block fixed connection.

Optionally, the fixed sliding sleeve that is provided with in pinion rack top, adjusting screw bottom and sliding sleeve rotatable coupling.

Optionally, both ends of the pull pressure gauge are provided with elastic measuring pieces, and the two elastic measuring pieces are respectively and fixedly connected with the two experimental rods.

Optionally, a limit frame on one side of the experimental rod is provided with a avoidance slot, and a corresponding limit frame on the other side of the experimental rod is provided with avoidance teeth, and the avoidance teeth can be inserted into the avoidance slot.

Optionally, a rotating handle is installed at the top of the adjusting screw.

The beneficial effects of the utility model are as follows:

The position of the movable seat in the sliding groove is adjusted by the adjusting screw matched with the toothed plate, different fixing modes of the rubber strip are realized by the movable seat matched with the fixed seat, the driving motor is matched with the bidirectional screw rod and the two groups of sliding seats, the two groups of experimental rods relatively move, the compression performance of the rubber strip is tested when the two groups of experimental rods relatively move close to each other, the tensile performance of the rubber strip is tested when the two groups of experimental rods relatively move away from each other, the testing efficiency of rubber is improved, the overall physical performance of the rubber is evaluated more accurately, and the installability and reliability of rubber products are improved;

The rubber is limited by the limiting frame and then pressure measurement is carried out, so that the influence of rubber deviation on a measurement result during clamping and fixing is avoided;

The clamping block is matched with the toothed plate, so that the stability of the fixing seat and the moving seat when clamping the rubber strip is improved, the accuracy of the rubber affected by external force is improved, the clamping block is matched with the reset spring and the push plate, the rubber strip is convenient to place and remove, and the convenience and the efficiency of the durability test of the rubber strip are improved;

The tension and pressure gauge synchronously measures and displays the tension and pressure of rubber, and the measurement result is displayed in real time without the measurement of computer auxiliary equipment.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic cross-sectional view of the mounting base of the present utility model, in which a compression test is performed on the rubber strip;

FIG. 3 is an enlarged view of the portion A of FIG. 2 in accordance with the present utility model;

FIG. 4 is a schematic cross-sectional view of the experimental rod of the present utility model, in which a tensile test is performed on a rubber strip;

FIG. 5 is a schematic view of the structure of the toothed plate and the latch according to the present utility model;

Fig. 6 is a schematic structural diagram of a limiting frame in embodiment 2 of the present utility model.

The device comprises a test bench, a mounting seat, a mounting groove, a test rod, a 5, a sliding groove, a 6, a fixing seat, a 7, a movable seat, a 8, a rubber strip, a 9, a toothed plate, a 10, an adjusting screw, a 11, a movable cavity, a 12, a clamping block, a 13, a return spring, a 14, a movable groove, a 15, a push plate, a 16, a limit frame, a 17, anti-skid threads, a 18, a tension pressure gauge, a 19, an elastic measuring piece, a 20, a sliding seat, a 21, a driving motor, a 22, a bidirectional screw rod, a 23, a limit rod, a 24, a limit hole, a 25, a avoidance tooth, a 26 and a avoidance groove.

Detailed Description

The utility model will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

The following detailed description is exemplary and is intended to provide further details of the utility model. Unless defined otherwise, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more. In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The utility model aims to provide a rubber durability test board, the position of a movable seat in a sliding groove can be adjusted by matching an adjusting screw with a toothed plate, the movable seat is matched with a fixed seat to realize different fixing modes of rubber strips, a driving motor is matched with a bidirectional screw rod and two groups of sliding seats to realize the relative movement of two groups of test bars, the compression performance of the rubber strips is tested when the two groups of test bars relatively move close to each other, the tensile performance of the rubber strips is tested when the two groups of test bars relatively move away from each other, the test efficiency of rubber is improved, the overall physical performance of the rubber is evaluated more accurately, and the installation property and reliability of rubber products are improved.

example 1

As shown in fig. 1-5, a rubber durability test bench comprises a test bench 1, wherein an installation seat 2 is fixedly connected to the test bench 1, two groups of installation grooves 3 are formed in the installation seat 2, an experiment rod 4 is slidably installed on the two groups of installation grooves 3, a sliding groove 5 is formed in one side of the experiment rod 4, a fixing seat 6 is fixedly installed at the bottom of the sliding groove 5, a movable seat 7 is arranged on the fixing seat 6, a rubber strip 8 is placed between the fixing seat 6 and the movable seat 7, a toothed plate 9 is fixedly connected to one side of the movable seat 7, an adjusting screw 10 is rotatably installed on the toothed plate 9, a tension-pressure gauge 18 is fixedly installed on the installation seat 2, elastic measuring pieces 19 are arranged on two sides of the tension-pressure gauge 18, one end of the elastic measuring pieces 19 is fixedly connected with the experiment rod 4, and a driving mechanism is arranged on the installation seat 2.

When the tensile property of the rubber strip 8 is required to be tested, two ends of the rubber strip 8 are placed above the two groups of fixed seats 6, the toothed plate 9 is driven to move downwards by rotating the adjusting screw 10, the movable seat 7 is driven to move downwards by the toothed plate 9, the lower end of the movable seat 7 is contacted with and extruded by the upper end of the rubber strip 8, the rubber strip 8 is clamped between the two groups of fixed seats 6 and the movable seat 7, as shown in fig. 4, the driving mechanism drives the two groups of experimental rods 4 to move relatively far away, so that the rubber strip 8 is in tensile deformation, the experimental rods 4 simultaneously pull the elastic measuring piece 19 to move, the tensile property of the rubber strip 8 is measured by the tension pressure gauge 18, the position of the movable seat 7 can be adjusted by adjusting the screw 10, the tensile property test of the rubber strip 8 with different thicknesses is convenient, and the practicability of the device is improved;

When the compression performance of the rubber strip 8 needs to be tested, two ends of the rubber strip 8 are respectively abutted against the sides of the two groups of fixed seats 6 and the movable seat 7, as shown in fig. 3, the driving mechanism drives the two groups of experimental rods 4 to move relatively close to each other, so that the rubber strip 8 is compressed and deformed, the experimental rods 4 simultaneously push the elastic measuring piece 19 to move, the tension manometer 18 measures the compression performance of the rubber strip 8, different physical properties of the rubber strip 8 are tested through switching of the driving mechanism, the testing efficiency of rubber is improved, the overall physical properties of rubber can be evaluated more accurately, and the installability and reliability of rubber products are improved.

Further described, the driving mechanism comprises a driving motor 21 fixedly installed on one side of the installation seat 2, a bidirectional screw rod 22 rotatably installed in the installation groove 3 and two groups of sliding seats 20 slidably installed in the installation groove 3, a driving shaft of the driving motor 21 is fixedly connected with the bidirectional screw rod 22 coaxially, the two groups of sliding seats 20 are in threaded connection with the bidirectional screw rod 22, and the upper ends of the sliding seats 20 are fixedly connected with the bottom of the experimental rod 4.

The driving motor 21 drives the bidirectional screw rod 22 to rotate, the bidirectional screw rod 22 pushes the two groups of sliding seats 20 to move relatively, the sliding seats 20 drive the experimental rods 4 to move, when the two groups of experimental rods 4 move relatively far away, the tensile property of the rubber strip 8 is tested, and when the two groups of experimental rods 4 move relatively close to each other, the compression property of the rubber strip 8 is tested.

Further stated, the said mounting groove 3 is fixedly provided with the stop lever 23, there are stop holes 24 corresponding to stop lever 23 on the said slide 20, the said stop lever 23 can slide and pass the corresponding stop hole 24;

The limiting rod 23 is matched with the limiting hole 24 to play a role in guiding and limiting the movement of the sliding seat 20, so that the sliding seat 20 is prevented from overturning when the bidirectional screw rod 2 moves, the stability of the movement of the sliding seat 20 in the mounting groove 3 is improved, and the stability of the movement of the experimental rod 4 in the performance test process of the rubber strip 8 is improved.

As another example of the above embodiment, a limit groove is formed on the side wall of the mounting groove 3, and a limit block is slidably mounted in the limit groove, and the limit block is fixedly mounted on the side surface of the slide base 20.

The limiting block is matched with the limiting groove to play a role in guiding and limiting the movement of the sliding seat 20, so that the sliding seat 20 is prevented from overturning when the bidirectional screw rod 2 moves, the stability of the movement of the sliding seat 20 in the mounting groove 3 is improved, and the stability of the movement of the experimental rod 4 in the performance testing process of the rubber strip 8 is improved.

Further stated, a movable cavity 11 is formed in the experimental rod 4, a clamping block 12 is slidably mounted in the movable cavity 11, one end of the clamping block 12 is matched with the toothed plate 9, a return spring 13 is fixedly mounted in the movable cavity 11, and one end of the return spring 13 is fixedly connected with the clamping block 12.

The toothed plate 9 is driven to move downwards through the adjusting screw 10, teeth of the toothed plate 9 are in contact with one end of the clamping block 12 and are extruded by the clamping block, the clamping block 12 is pushed into the movable cavity 11, the clamping block 12 moves to enable the movable cavity 11 to be compressed and deformed, after the movable seat 7 is moved to a proper position, the compressed movable cavity 11 pushes the clamping block 12 to move for restoring an initial state, the clamping block 12 limits the toothed plate 9 to fix the position of the movable seat 7, the phenomenon that the rubber strip 8 is deviated in the test process due to insufficient clamping force of the fixing seat 6 and the movable seat 7 on the rubber strip 8 caused by insufficient self-locking property of the adjusting screw 10 is avoided, the stability of the rubber strip 8 in the test process is improved, and the accuracy of a rubber physical property test result is improved.

Further, a movable groove 14 is formed in one side of the experimental rod 4, the movable groove 14 is communicated with the inside of the movable cavity 11, a push plate 15 is slidably installed in the movable groove 14, and the push plate 15 is fixedly installed on one side of the clamping block 12.

Pushing the push plate 15 to move in the movable groove 14, the push plate 15 drives the clamping block 12 to move to remove the limit on the toothed plate 9, and then the toothed plate 9 can be driven to move up and down freely through the adjusting screw 10, so that the rubber strip 8 can be placed and removed conveniently, and the convenience of using the device is improved.

Further, a limit frame 16 is fixedly installed on one side of the fixed seat 6 and one side of the movable seat 7, and anti-skid patterns 17 are arranged at the upper end of the fixed seat 6 and the lower end of the movable seat 7.

In the compression performance testing process of the rubber strip 8, the limiting frames 16 on the fixed seat 6 and the movable seat 7 can limit the two ends of the rubber strip 8, so that the rubber strip 8 is prevented from shifting in the testing process, the stability of the rubber strip 8 in the compression testing process is improved, the friction force between the rubber strip 8 and the fixed seat 6 and between the rubber strip 8 and the movable seat 7 is improved due to the arrangement of the anti-skid patterns 17 in the tensile performance testing process of the rubber strip 8, the slippage of the rubber strip 8 is effectively avoided, and the stability of the rubber strip 8 in the tensile testing process is improved.

The device is specifically used by referring to the following operation that a driving motor 21 drives a bidirectional screw rod 22 to rotate, the bidirectional screw rod 22 pushes two groups of sliding seats 20 to move relatively, the sliding seats 20 drive test bars 4 to move, when the tensile property of a rubber strip 8 is required to be tested, an adjusting screw 10 is rotated to drive a toothed plate 9 to move downwards, the toothed plate 9 drives a movable seat 7 to move downwards, two ends of the rubber strip 8 are respectively clamped between the two groups of fixed seats 6 and the movable seat 7, the two groups of test bars 4 move relatively far away, so that the rubber strip 8 is subjected to tensile deformation, the test bars 4 simultaneously pull an elastic measuring piece 19 to move, a tension pressure gauge 18 is used for measuring the tensile property of the rubber strip 8, when the compressive property of the rubber strip 8 is required to be tested, the two ends of the rubber strip 8 are respectively abutted against the side surfaces of the two groups of the fixed seats 6 and the movable seat 7, the two groups of test bars 4 are relatively close to move, so that the rubber strip 8 is subjected to compressive deformation, the test bars 4 simultaneously push the elastic measuring piece 19 to move, and the tension pressure gauge 18 is used for measuring the compressive property of the rubber strip 8.

According to the rubber durability test board, the fixing seat 6 and the movable seat 7 are pressed to clamp and stretch the rubber strip 8 for measuring the tensile property, the limiting frames 16 on the fixing seat 6 and the movable seat 7 are used for limiting and extruding the two ends of the rubber strip 8 for measuring the compression property, the problem that the measurement result is inaccurate due to the fact that the two ends of the rubber strip 8 are clamped when the existing device is used for pressure testing is solved, and the technical effect of integrated measurement of the tensile property and the compression property of the rubber strip 8 by the test board is achieved.

As a preferable example of the above embodiment, a rotating handle is mounted on the top of the adjusting screw 10, and the adjusting screw 10 is rotated by holding the rotating handle, so that the rotation adjustment is more convenient.

Example 2

As a preferred example, as shown in fig. 6, a space-saving groove 26 is formed on the limiting frame 16 on one side of the test rod 4, and space-saving teeth 25 are disposed on the corresponding limiting frame 16 on the other side of the test rod 4, the space-saving teeth 25 can be inserted into the space-saving groove 26, and when the compression performance of the rubber strip 8 is measured, the space-saving teeth 25 can be inserted into the space-saving groove 26, so that the compression degree of the rubber strip 8 is increased, and the influence of the mutual interference of the limiting frames 16 on the normal measurement is avoided.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

It will be appreciated by those skilled in the art that the present utility model can be carried out in other embodiments without departing from the spirit or essential characteristics thereof. Accordingly, the above disclosed embodiments are illustrative in all respects, and not exclusive. All changes that come within the scope of the utility model or equivalents thereto are intended to be embraced therein.

Claims

1. The utility model provides a rubber durability testboard, its characterized in that, including laboratory bench (1), fixedly connected with mount pad (2) on laboratory bench (1), two sets of mounting groove (3) have been seted up on mount pad (2), two equal slidable mounting has experiment pole (4) on mounting groove (3), two spout (5) have all been seted up on the side that experiment pole (4) are relative, the bottom fixed mounting of spout (5) has fixing base (6), be provided with adjusting screw (10) in spout (5), threaded connection between the upper end of adjusting screw (10) and experiment pole (4), rotate on adjusting screw (10) and install pinion rack (9), fixed mounting has on pinion rack (9) and removes seat (7), remove seat (7) and be located directly over fixing base (6), fixing base (6) and remove and be provided with spacing frame (16) on seat (7), fixing base (6) the upper end with the lower extreme of removing seat (7) all is provided with fixing base (17), it has pressure gauge (8) to place between fixing base (8), install on slider (8).

2. A rubber durability test bench according to claim 1, characterized in that said driving mechanism comprises a driving motor (21) fixedly mounted on the mounting base (2), a bidirectional screw rod (22) rotatably mounted in the mounting groove (3), and two sets of slide carriages (20) slidably mounted in the mounting groove (3), a driving shaft of said driving motor (21) is fixedly connected coaxially with the bidirectional screw rod (22), both sets of slide carriages (20) are in threaded connection with the bidirectional screw rod (22) and move in opposite directions, and an upper end of said slide carriage (20) is fixedly connected with a bottom of the test rod (4).

3. A rubber durability test bench according to claim 2, characterized in that a limit rod (23) is fixedly arranged in the mounting groove (3), a limit hole (24) corresponding to the limit rod (23) is formed in the sliding seat (20), and the limit rod (23) can slide through the corresponding limit hole (24).

4. A rubber durability test bench according to claim 2, characterized in that a limit groove is formed in the side wall of the mounting groove (3), a limit block is slidably mounted in the limit groove, and the limit block is fixedly mounted on the side surface of the slide seat (20).

5. The rubber durability test bench according to claim 1, wherein a movable cavity (11) is formed in the test rod (4), a clamping block (12) is slidably installed in the movable cavity (11), one end of the clamping block (12) is matched with the toothed plate (9), a return spring (13) is fixedly installed in the movable cavity (11), one end of the return spring (13) is fixedly connected with the clamping block (12), and the other end of the return spring is connected with the inner wall of the movable cavity (11).

6. The rubber durability test bench according to claim 5, wherein the experimental rod (4) is provided with a movable groove (14), the movable groove (14) is communicated with the inside of the movable cavity (11), a push plate (15) is slidably arranged in the movable groove (14), and the push plate (15) is fixedly connected with the clamping block (12).

7. The rubber durability test bench according to claim 1, wherein a sliding sleeve is fixedly arranged at the top of the toothed plate (9), and the bottom end of the adjusting screw (10) is rotatably connected with the sliding sleeve.

8. A rubber durability test bench according to claim 1, characterized in that both ends of said tension-pressure gauge (18) are provided with elastic measuring members (19), and that two of said elastic measuring members (19) are fixedly connected with two test bars (4), respectively.

9. The rubber durability test bench according to claim 1, wherein a limit frame (16) on one side of the test rod (4) is provided with a avoidance groove (26), and a corresponding limit frame (16) on the other side of the test rod (4) is provided with avoidance teeth (25), wherein the avoidance teeth (25) can be inserted into the avoidance groove (26).

10. A rubber durability test-bed according to claim 1, characterized in that the top of the adjusting screw (10) is provided with a turning handle.