Testing instrument for tensile property of rubber material

Abstract

The utility model belongs to the technical field of detection equipment, and discloses a test instrument for the tensile property of a rubber material, which comprises a base, a supporting tube fixedly connected to the upper end of the base, a circular fence fixedly connected to the upper end of the supporting tube, four guide grooves formed in the outer surface of the circular fence, and a test mechanism fixedly connected to the upper end of the base. Through the testing mechanism, the tensile property of rubber materials in different shapes can be tested, the stress condition of the rubber can be accurately tested by utilizing a tension meter, and when the tensile property of the rubber materials is tested by matching a clamping assembly with a clamping piece, the rubber materials in different thicknesses can be fixed, the materials are prevented from being separated from equipment in the testing process, and the testing efficiency is improved. And through the driving assembly, the motor is used as driving force, so that an operator can be far away from the equipment during testing, the operator can be prevented from being hurt when rubber is broken, and the practicability of the testing instrument is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection equipment technical field, concretely relates to a test instrument for rubber material tensile property. BACKGROUND

[0002] The main purpose of rubber material tensile property test is to evaluate the performance of rubber material under the action of tensile force, and to provide scientific basis for its application in different fields. Through this test, the basic mechanical properties of rubber material can be understood, which is directly related to the safety and reliability of product design, manufacturing and final application.

[0003] Chinese patent authorization announcement number: CN219757927U provides a kind of rubber material static tensile test detection device, the bottom of the base is equipped with protective structure, and protective structure can cover device when rubber material static tensile test detection device runs, so that rubber material can reduce the condition of causing injury to staff if it breaks during stretching, and then enhance the safety performance of rubber material static tensile test detection device and other advantages.

[0004] But there are still the following defects in the specific implementation process: the device needs to cut the rubber material when in use, cannot measure rubber plate, which will make the measured data lower than the tensile strength of the material itself.

[0005] Therefore, the utility model designs a kind of test instrument for rubber material tensile property to solve above-mentioned problem. INVENTION CONTENTS

[0006] In view of the above-mentioned shortcomings of prior art, the utility model provides a kind of test instrument for rubber material tensile property.

[0007] To achieve the above purpose, the utility model is realized by the following technical schemes:

[0008] A kind of test instrument for rubber material tensile property, including base, the base upper end is fixedly connected with support pipe, the support pipe upper end is fixedly connected with circular enclosure, the outer surface of the circular enclosure is equipped with four guide grooves, the base upper end is fixedly connected with test mechanism, the test mechanism includes circular plate, the circular plate upper end is fixedly connected with drive ring strip, the circular plate lower end is fixedly connected with drive assembly, the circular plate upper end is fixedly connected with connecting plate, the outer surface of the connecting plate is fixedly connected with several sliding grooves, the inner cavity of several sliding grooves is slidably connected with four clamping assemblies, two clamping assemblies are fixedly connected with tension meter in the part of mutual approach, the end of several sliding grooves away from connecting plate is fixedly connected with the inner surface of circular enclosure;

[0009] Further, the driving assembly comprises a motor, an umbrella gear set one is fixedly connected to the output end of the motor through a shaft coupling, a transmission rod is fixedly connected to the inner surface of the umbrella gear set one, an umbrella gear set two is fixedly connected to the outer surface of the transmission rod, a connecting rod is fixedly connected to the inner surface of the umbrella gear set two, and a positioning rod is rotatably connected to the lower end of the connecting rod.

[0010] Further, the clamping assembly comprises a sliding bar, a driving bar is fixedly connected to the lower end of the sliding bar, and a clamping piece is fixedly connected to the upper end of the sliding bar.

[0011] Further, the clamping piece comprises a cushion block, a support is fixedly connected to the upper end of the cushion block, a hydraulic cylinder is rotatably connected to the inner surface of the support, a connecting rod is fixedly connected to the output end of the hydraulic cylinder, a support rod is fixedly connected to the bottom wall of the inner cavity of the support, an internally threaded pipe is fixedly connected to the inner surface of the support rod, a screw rod is threadedly connected to the inner surface of the internally threaded pipe, a knob is fixedly connected to the upper end of the screw rod, and a pressing block is fixedly connected to the lower end of the clamping piece.

[0012] Further, the outer surfaces of the four sliding bars are slidably connected with the inner surfaces of a plurality of sliding groove strips respectively, the outer surfaces of the four sliding bars are slidably connected with the inner surfaces of four guide grooves respectively, and the outer surfaces of the four driving bars are slidably connected with the inner surfaces of the driving ring strips.

[0013] Further, the lower ends of the four cushion blocks are fixedly connected with the upper ends of the four sliding bars respectively, and the mutually close ends of the two cushion blocks are fixedly connected with the left and right ends of the tension meter respectively.

[0014] Further, the lower end of the motor is fixedly connected with the upper end of the base, the lower end of the positioning rod is fixedly connected with the upper end of the base, the upper end of the connecting rod is fixedly connected with the lower end of the circular plate, and the outer surface of the transmission rod is rotatably connected with the inner surface of the support pipe. Advantages

[0015] (1) The testing mechanism can test the tensile properties of rubber materials of different shapes, and the tension meter can accurately measure the stress of the rubber, improving the practicality of the testing instrument.

[0016] (2) The clamping assembly cooperates with the clamping piece to fix rubber materials of different thicknesses before testing the tensile properties of the rubber materials, avoiding material separation from the equipment during testing.

[0017] (3) The driving assembly uses a motor as the driving force, so the operator can be away from the equipment during testing, avoiding injury to the operator when the rubber breaks. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings described below are only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0020] Figure 2 It is a schematic diagram of the testing mechanism of the present application.

[0021] Figure 3 It is a schematic diagram of the driving assembly of the present application.

[0022] Figure 4 It is a schematic diagram of the clamping assembly of the present application.

[0023] Figure 5 It is a schematic diagram of the clamping member of the present application.

[0024] The numbers in the figure represent:

[0025] 1, base; 2, support pipe; 3, circular fence; 4, guide groove; 5, testing mechanism; 51, round plate; 52, driving circle strip; 53, driving assembly; 531, motor; 532, umbrella gear set one; 533, transmission rod; 534, umbrella gear set two; 535, connecting rod; 536, positioning rod; 54, clamping assembly; 541, sliding bar; 542, driving bar; 543, clamping member; 5431, cushion block; 5432, support; 5433, hydraulic cylinder; 5434, connecting rod; 5435, support rod; 5436, knob; 5437, internal thread pipe; 5438, screw rod; 5439, pressing block; 55, sliding groove strip; 56, connecting plate; 57, tension meter. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical scheme in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0027] The present application will be further described below in combination with the embodiments.

[0028] In some embodiments, please refer to the drawingsFigures 1-5 A testing instrument for the tensile properties of rubber materials includes a base 1, a support tube 2 is fixedly connected to the upper end of the base 1, a circular enclosure 3 is fixedly connected to the upper end of the support tube 2, four guide grooves 4 are opened on the outer surface of the circular enclosure 3, and a testing mechanism 5 is fixedly connected to the upper end of the base 1.

[0029] In an embodiment of the present invention, the base 1 and the circular enclosure 3 are connected together by using a support tube 2, and the testing mechanism 5 is set inside the circular enclosure 3. The testing mechanism 5 can be used to clamp rubber materials of different shapes and thicknesses and pull them outward to test the tensile properties.

[0030] In some embodiments, as Figures 2-5 As shown, as a preferred embodiment of the present utility model, the testing mechanism 5 includes a circular plate 51, the upper end of the circular plate 51 is fixedly connected to a driving ring strip 52, the lower end of the circular plate 51 is fixedly connected to a driving assembly 53, the upper end of the circular plate 51 is fixedly connected to a connecting plate 56, the outer surface of the connecting plate 56 is fixedly connected to a plurality of slide bars 55, the inner cavities of the plurality of slide bars 55 are commonly slidably connected to four clamping assemblies 54, a portion of the two clamping assemblies 54 close to each other is commonly fixedly connected to a dynamometer 57, and the ends of the plurality of slide bars 55 away from the connecting plate 56 are fixedly connected to the inner surface of the circular enclosure 3.

[0031] The driving assembly 53 includes a motor 531, the lower end of the motor 531 is fixedly connected to the upper end of the base 1, the output end of the motor 531 is fixedly connected to the bevel gear set 1 532 through a coupling, the inner surface of the bevel gear set 1 532 is fixedly connected to the transmission rod 533, the outer surface of the transmission rod 533 is rotatably connected to the inner surface of the support tube 2, the outer surface of the transmission rod 533 is fixedly connected to the bevel gear set 2 534, the inner surface of the bevel gear set 2 534 is fixedly connected to the connecting rod 535, the upper end of the connecting rod 535 is fixedly connected to the lower end of the circular plate 51, the lower end of the connecting rod 535 is rotatably connected to the positioning rod 536, and the lower end of the positioning rod 536 is fixedly connected to the upper end of the base 1.

[0032] The clamping assembly 54 includes a slide bar 541, the outer surfaces of the four slide bars 541 are respectively slidably connected to the inner surfaces of several slide groove bars 55, the outer surfaces of the four slide bars 541 are respectively slidably connected to the inner surfaces of four guide grooves 4, the lower end of the slide bar 541 is fixedly connected to the driving bar 542, the outer surfaces of the four driving bars 542 are all slidably connected to the inner surface of the driving ring bar 52, and the upper end of the slide bar 541 is fixedly connected to the clamping member 543.

[0033] The clamping member 543 includes a pad 5431, the lower ends of the four pads 5431 are fixedly connected to the upper ends of the four slide bars 541 respectively, the ends of the two pads 5431 close to each other are fixedly connected to the left and right ends of the dynamometer 57 respectively, the upper end of the pad 5431 is fixedly connected to a bracket 5432, the inner surface of the bracket 5432 is rotatably connected to the hydraulic cylinder 5433, the output end of the hydraulic cylinder 5433 is fixedly connected to the connecting rod 5434, the bottom wall of the inner cavity of the bracket 5432 is fixedly connected to the support rod 5435, the inner surface of the support rod 5435 is fixedly connected to the internal threaded tube 5437, the inner surface of the internal threaded tube 5437 is threadedly connected to the screw 5438, the upper end of the screw 5438 is fixedly connected to the knob 5436, and the lower end of the clamping member 543 is fixedly connected to the pressure block 5439.

[0034] In the embodiment of the present invention, when the tensile performance test of the rubber material is required, the motor 531 can be started according to the specific size of the material, and the bevel gear set 1 532 transmits the force of the motor 531 to the transmission rod 533, so that the transmission rod 533 can rotate on the inner surface of the inner surface of the support tube 2. When the transmission rod 533 rotates, the force is transmitted to the bevel gear set 2 534, and the bevel gear set 2 534 drives the connecting rod 535 to rotate. Since the upper end of the connecting rod 535 is connected to the circular plate 5 1 is fixedly connected at the lower end, so when the connecting rod 535 rotates, it will rotate with the circular plate 51 and the driving ring strip 52 located at the upper end of the circular plate 51. When the driving ring strip 52 rotates, it will drive the four driving strips 542 to slide outward simultaneously under the cooperation of the four sliding strips 541 and the plurality of sliding groove strips 55, so that the four pads 5431 are separated from each other until the rubber material is fixed. It should be noted that at this time, a reading will appear on the dynamometer 57, and the final test result needs to subtract the reading at this time.

[0035] After the positions of the four pads 5431 are adjusted according to the size of the required test material, the hydraulic cylinder 5433 is controlled to retract so that the connecting rod 5434 can rotate backward with the hydraulic cylinder 5433 with the bracket 5432 as the axis under the action of the hydraulic cylinder 5433. At this time, the support rod 5435 will tilt upward. According to the above operation, the remaining three hydraulic cylinders 5433 are controlled to retract. After completion, the rubber material can be placed on the upper end of the four pads 5431. If the material is in the form of a plate, the four corners of the material are fixed. If the material is in the form of a strip, the two short sides are fixed. If the material is in the form of a ring, it can be directly put on the four screws 5438 to facilitate the instrument to adjust Materials of the same shape are fixed. Taking a plate-shaped rubber material as an example, after placing the plate-shaped rubber material on the upper ends of the four pads 5431, the four hydraulic cylinders 5433 are controlled to extend so that the pressure block 5439 is parallel to the material. Then, the knob 5436 is turned to allow the screw 5438 to move downward on the inner surface of the internal threaded tube 5437 under the action of the knob 5436, so that the pressure block 5439 can cooperate with the pad 5431. Using the above operation, the remaining three knobs 5436 are turned to firmly fix the plate-shaped rubber material. After the fixation is completed, the motor 531 is started again to allow the four drive bars 542 to continue to slide outward again to stretch the plate-shaped rubber material and test the tensile performance.

[0036] It should be noted that the specific installation methods, circuit connection methods, oil circuit connection methods and control methods of the motor 531, hydraulic cylinder 5433 and dynamometer 57 in the present invention are all conventional designs and will not be elaborated in detail in the present invention.

[0037] Working principle: Before testing the tensile properties of rubber materials, adjust the instrument according to the size of the material, start the motor 531, and let the driving ring 52 at the upper end of the circular plate 51 rotate under the action of the motor 531. When the driving ring 52 rotates, it will drive the four driving bars 542 to slide outward at the same time under the cooperation of the four sliding bars 541 and the plurality of sliding groove bars 55, so that the four pads 5431 are separated from each other until the rubber material is fixed. It should be noted that at this time, the tensile gauge 57 will show a reading, and the final test result needs to subtract the reading at this time. After the adjustment is completed, first control the four hydraulic cylinders 543 3. Contraction, so that the four pressing blocks 5439 tilt upward, and then place the rubber material on the upper ends of the four pads 5431. Then control the four hydraulic cylinders 5433 to extend, so that the four pressing blocks 5439 are parallel to the material. Then turn the four knobs 5436 in sequence, so that the screw 5438 moves downward on the inner surface of the internal threaded tube 5437 under the action of the knob 5436, so that the four pressing blocks 5439 can cooperate with the four pads 5431 to firmly fix the rubber material. After the fixation is completed, start the motor 531 again to allow the four drive bars 542 to continue to slide outward again to stretch the plate-shaped rubber material and test the tensile performance.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A testing instrument for the tensile properties of rubber materials, comprising a base (1), characterized in that: The upper end of the base (1) is fixedly connected to a support tube (2), the upper end of the support tube (2) is fixedly connected to a circular enclosure (3), the outer surface of the circular enclosure (3) is provided with four guide grooves (4), the upper end of the base (1) is fixedly connected to a testing mechanism (5), the testing mechanism (5) comprises a circular plate (51), the upper end of the circular plate (51) is fixedly connected to a driving ring strip (52), the lower end of the circular plate (51) is fixedly connected to a driving assembly (53), the upper end of the circular plate (51) is fixedly connected to a connecting plate (56), the outer surface of the connecting plate (56) is fixedly connected to a plurality of slide strips (55), the inner cavities of the plurality of slide strips (55) are slidably connected to four clamping assemblies (54), the mutually adjacent portions of the two clamping assemblies (54) are fixedly connected to a dynamometer (57), and the ends of the plurality of slide strips (55) away from the connecting plate (56) are fixedly connected to the inner surface of the circular enclosure (3).

2. The testing instrument for tensile properties of rubber materials according to claim 1, characterized in that: The driving assembly (53) includes a motor (531), the output end of the motor (531) is fixedly connected to a first bevel gear set (532) via a coupling, the inner surface of the first bevel gear set (532) is fixedly connected to a transmission rod (533), the outer surface of the transmission rod (533) is fixedly connected to a second bevel gear set (534), the inner surface of the second bevel gear set (534) is fixedly connected to a connecting rod (535), and the lower end of the connecting rod (535) is rotatably connected to a positioning rod (536).

3. The testing instrument for tensile properties of rubber materials according to claim 1, characterized in that: The clamping assembly (54) comprises a slide bar (541), the lower end of the slide bar (541) is fixedly connected to a driving bar (542), and the upper end of the slide bar (541) is fixedly connected to a clamping member (543).

4. The testing instrument for tensile properties of rubber materials according to claim 3, characterized in that: The clamping member (543) comprises a cushion block (5431), the upper end of the cushion block (5431) is fixedly connected to a bracket (5432), the inner surface of the bracket (5432) is rotatably connected to a hydraulic cylinder (5433), the output end of the hydraulic cylinder (5433) is fixedly connected to a connecting rod (5434), the bottom wall of the inner cavity of the bracket (5432) is fixedly connected to a support rod (5435), the inner surface of the support rod (5435) is fixedly connected to an internal threaded tube (5437), the inner surface of the internal threaded tube (5437) is threadedly connected to a screw (5438), the upper end of the screw (5438) is fixedly connected to a knob (5436), and the lower end of the clamping member (543) is fixedly connected to a pressing block (5439).

5. The testing instrument for tensile properties of rubber materials according to claim 3, characterized in that: The outer surfaces of the four slide bars (541) are respectively slidably connected to the inner surfaces of the plurality of slide groove bars (55), the outer surfaces of the four slide bars (541) are respectively slidably connected to the inner surfaces of the four guide grooves (4), and the outer surfaces of the four drive bars (542) are respectively slidably connected to the inner surface of the drive ring bar (52).

6. The testing instrument for tensile properties of rubber materials according to claim 4, characterized in that: The lower ends of the four pads (5431) are fixedly connected to the upper ends of the four slide bars (541), and the ends of the two pads (5431) close to each other are fixedly connected to the left and right ends of the dynamometer (57).

7. The testing instrument for tensile properties of rubber materials according to claim 2, characterized in that: The lower end of the motor (531) is fixedly connected to the upper end of the base (1), the lower end of the positioning rod (536) is fixedly connected to the upper end of the base (1), the upper end of the connecting rod (535) is fixedly connected to the lower end of the circular plate (51), and the outer surface of the transmission rod (533) is rotatably connected to the inner surface of the support tube (2).

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