Clamping-detaching device for rubber compression set measurement

By designing a clamping-disassembly device including a fixed base, an insulating sleeve and a roof, the difficulty and risk of disassembly of the compression permanent deformation measurement device under high temperature conditions is solved, and the uniformity of force and test accuracy are improved.

CN223122671UActive Publication Date: 2025-07-18SHANDONG NON METALLIC MATERIAL RESEARCH INSTITUTE
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422145451.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-02
Publication Date
2025-07-18
Estimated Expiration
2034-09-02

AI Technical Summary

Technical Problem

When the prior art opens the compression permanent deformation measuring device under high temperature conditions, there are problems such as high disassembly difficulty, low working efficiency, high risk of sample damage and high risk of scalding.

Method used

A clamping and disassembly device including a fixed base, an insulating sleeve and an insulating roof plate is adopted. Through the coordination of hexagonal holes and round holes, three directions are simultaneously tightened or loosened, improving stress uniformity, and reducing temperature risks with thermal insulation materials.

Benefits of technology

It improves the uniformity of the stress during the clamping process, reduces sample damage, improves disassembly speed and work efficiency, reduces the risk of scalds, and ensures the accuracy of the test.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223122671U_ABST
    Figure CN223122671U_ABST
Patent Text Reader

Abstract

The utility model discloses a clamping-dismounting device for rubber compression set measurement, which is characterized by comprising a fixed base, a heat insulation sleeve and a heat insulation top plate, a compression set fixing groove is formed in the top of the fixed base, and a hexagonal hole is formed in the compression set fixing groove; a plurality of first cylinders are further arranged on the top of the fixed base and matched with first round holes formed in the bottom of the heat insulation sleeve, and the heat insulation sleeve is connected with the fixed base; the heat insulation top plate is provided with a second round hole corresponding to the hexagonal hole in position. During installation, the heat-insulating top plate is located at the top of the heat-insulating sleeve. A traditional double-wrench clamping and disassembling method is replaced, the stress uniformity of the compression permanent deformation test block in the clamping process is improved, and the damage of the test block caused by uneven stress is reduced; in the clamp dismounting process, the dismounting speed can be increased, the working efficiency and the test accuracy can be improved, and the scalding risk of experimenters due to the too high temperature of the clamp is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model belongs to the technical field of tooling, and particularly relates to a clamping - dismounting device for rubber compression set measurement. Background Art

[0002] The compression set test means that a specimen with a known height is compressed to a certain height according to the compression ratio required by the customer, and after being kept at a high temperature or standard laboratory temperature for a period of time, the compression device is opened according to the opening method required by the customer. There are three ways to open the compression set measurement device under the existing high - temperature test conditions:

[0003] (A) Immediately open the compression set measurement device after taking it out of the aging oven;

[0004] (B) Take it out of the aging oven and open it after the device cools down to the standard laboratory temperature;

[0005] (C) Immediately open the compression set measurement device in the aging oven.

[0006] The inventor found that when the test temperature is relatively high, such as above 150 °C, when using the traditional double - wrench method to open the compression set measurement device in the ways of (A) and (C), due to the too high temperature, the disassembly difficulty will increase and the working efficiency will be low; when opening the compression set measurement device in the way of (B), because the immediate opening time is prolonged, the measurement of the compression set rate value will be finally affected, and the too high temperature will bring the risk of scalding to the staff.

[0007] Moreover, the traditional double - wrench clamping and dismounting method is to use one wrench to fix the nut and the other wrench to tighten or loosen the bolt to achieve clamping or dismounting. However, this method is prone to over - tightening or over - loosening in a single direction, resulting in uneven stress on the specimen and causing damage. Content of the Utility Model

[0008] In order to overcome the deficiencies existing in the above - mentioned prior art, the utility model provides a clamping - dismounting device for rubber compression set measurement, which replaces the traditional double - wrench clamping and dismounting method, improves the stress uniformity of the compression set test block during clamping, reduces the damage of the specimen caused by uneven stress; during the process of disassembling the fixture, it can improve the disassembly speed, improve the working efficiency and test accuracy, and reduce the risk of scalding of the experimenter caused by the too high temperature of the fixture.

[0009] In order to achieve the above purpose, the utility model is realized by the following technical solutions:

[0010] The technical solution of the present utility model provides a clamping and disassembling device for measuring the compression set of rubber, including: a fixed base, a heat insulation sleeve, and a heat insulation top plate; a compression set tester fixing groove is provided at the top of the fixed base, and a hexagonal hole is provided in the compression set tester fixing groove; a plurality of first cylinders are further provided on the top of the fixed base, and the first cylinders cooperate with the first circular holes provided at the bottom of the heat insulation sleeve to connect the heat insulation sleeve and the fixed base; the heat insulation top plate is provided with second circular holes corresponding to the positions of the hexagonal holes; during installation, the heat insulation top plate is located on the top of the heat insulation sleeve.

[0011] In at least one embodiment, the heat insulation sleeve is composed of a first ring and a second ring spliced together.

[0012] In at least one embodiment, a plurality of first circular holes are provided at the bottom of the first ring, and a plurality of second cylinders are provided at the top.

[0013] In at least one embodiment, a plurality of first circular holes are provided at the bottom of the second ring, and the second ring is located at the topmost layer of the first ring.

[0014] In at least one embodiment, the hexagonal hole cooperates with the head of the hexagonal bolt used by the compression set tester to fix the compression set tester in the compression set tester fixing groove.

[0015] In at least one embodiment, the diameter of the second circular hole is equal to the outer diameter of the nut of the hexagonal bolt used by the compression set tester.

[0016] In at least one embodiment, the outer diameter of the heat insulation top plate is larger than the inner diameter of the heat insulation sleeve.

[0017] In at least one embodiment, the depth of the compression set tester fixing groove and the sum of the heights of the heat insulation sleeve and the heat insulation top plate are less than the length of the hexagonal bolt used by the compression set tester, ensuring that the screw rod of the hexagonal bolt protrudes from the second circular hole.

[0018] In at least one embodiment, fixing bolt holes are provided around the fixed base.

[0019] In at least one embodiment, threads are provided in the fixing bolt holes to cooperate with the first bolt.

[0020] The beneficial effects of the above technical solution of the present utility model are as follows:

[0021] 1) The clamping and disassembling device for rubber compression set measurement of the present utility model replaces the traditional double-wrench clamping and disassembling method, improves the force uniformity of the compression set test block during the clamping process, and reduces the damage of the specimen caused by uneven force; during the process of disassembling the fixture, it can improve the disassembly speed, improve work efficiency and test accuracy, and reduce the risk of scalding of the experimental personnel caused by the excessive temperature of the fixture.

[0022] 2) The clamping and disassembling device for rubber compression set measurement of the present utility model can realize simultaneous tightening or loosening in three directions, reduces the clamping and disassembling time while improving the force uniformity, and improves work efficiency.

[0023] 3) The clamping and disassembling device for rubber compression set measurement of the present utility model can control the height of the heat insulation sleeve by controlling the number of the first rings of the spliced heat insulation sleeve according to the requirements of the compression set tester and the test, so as to meet different height requirements of the test, with a wide range of applications and high utilization rate. Description of the Drawings

[0024] The attached drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model.

[0025] Figure 1 is the overall structural schematic diagram of the clamping and disassembling device for rubber compression set measurement of the present utility model.

[0026] Figure 2 is the front view of the clamping and disassembling device for rubber compression set measurement of the present utility model.

[0027] Figure 3 is the clamping and disassembling device for rubber compression set measurement of the present utility model Figure 2 sectional view at A-A.

[0028] Figure 4 is the structural schematic diagram of the fixed base 1 of the clamping and disassembling device for rubber compression set measurement of the present utility model.

[0029] Figure 5 is the structural schematic diagram of the heat insulation sleeve of the clamping and disassembling device for rubber compression set measurement of the present utility model.

[0030] Figure 6 and Figure 7 are the ring schematic diagrams of the compression set tester heat insulation sleeve assembly of the clamping and disassembling device for rubber compression set measurement of the present utility model.

[0031] Figure 8 This is a schematic structural view of the heat-insulating top plate of a clamping-dismantling device for measuring the compression set of rubber in the present utility model.

[0032] As shown in the figure: 1. Fixed base; 2. Heat-insulating sleeve; 3. Heat-insulating top plate; 4. Fixed bolt hole; 5. First bolt; 6. First cylinder; 7. Compression set fixture fixing groove; 8. Hexagonal hole; 9. First ring; 10. Second cylinder; 11. First round hole; 12. Second round hole; 13. Second ring. Detailed implementation mode

[0033] It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present utility model. Unless otherwise specified, all technical and scientific terms used in the present utility model have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs.

[0034] It should be noted that the terms used herein are only for describing the specific implementation modes and are not intended to limit the exemplary implementation modes according to the present utility model. As used herein, unless the present utility model clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0035] Term explanation part: Terms such as "installation", "connection", "connection", and "fixation" in the present utility model should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection, it can be a direct connection or an indirect connection through an intermediate medium, it can be an internal connection between two components, or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0036] As introduced in the background technology, the purpose of the present utility model is to overcome the deficiencies existing in the above-mentioned prior art, and provide a clamping-dismantling device for measuring the compression set of rubber, replacing the traditional double-wrench clamping and dismantling method, improving the force uniformity of the compression set test block during the clamping process, reducing the damage of the specimen caused by uneven force; during the process of dismantling the fixture, the dismantling speed can be increased, the work efficiency and test accuracy can be improved, and the risk of scalding of the experimental personnel caused by the excessive temperature of the fixture can be reduced.

[0037] Embodiment 1

[0038] As Figures 1-8As shown in the figure, this embodiment discloses a clamping-dismantling device for rubber compression set measurement, including: a fixed base 1, a heat insulation sleeve 2, and a heat insulation top plate 3.

[0039] On the top of the fixed base 1, there is a compression set tester fixing groove 7, which is integrally formed with the fixed base 1. In the compression set tester fixing groove 7, there are a plurality of hexagonal holes 8, which can cooperate with the heads of the hexagonal bolts used for the compression set tester to fix the compression set tester in the compression set tester fixing groove 7.

[0040] On the top of the fixed base 1, there are also a plurality of first cylinders 6, which are arranged around the compression set tester fixing groove 7. The first cylinders 6 cooperate with the first circular holes 11 provided at the bottom of the heat insulation sleeve 2 to connect the heat insulation sleeve 2 and the fixed base 1.

[0041] The heat insulation sleeve 2 is mainly composed of several first rings 9 and a second ring 13 spliced together. At the bottom of the first ring 9, there are a plurality of first circular holes 11, which can cooperate with the first cylinders 6 on the fixed base 1 to connect the bottommost first ring 9 of the heat insulation sleeve 2 and the fixed base 1. At the top of the first ring 9, there are a plurality of second cylinders 10, which can cooperate with the first circular holes 11 at the bottom of another first ring 9 to realize the splicing of a plurality of first rings 9. At the bottom of the second ring 13, there are also a plurality of first circular holes 11. The first circular holes 11 of the second ring 13 can cooperate with the second cylinders 10 at the top of the topmost first ring 9, that is, the second ring 13 is located at the topmost layer of all the first rings 9, to realize the splicing of the first rings 9 and the second ring 13, and jointly form the heat insulation sleeve 2. There are no second cylinders 10 provided at the top of the second ring 13. According to the requirements of the compression set tester and the test, the height of the heat insulation sleeve 2 can be controlled by controlling the number of the first rings 9 spliced for the heat insulation sleeve 2 to meet different height requirements of the test.

[0042] The heat insulation top plate 3 is provided with second circular holes 12 corresponding to the positions of the hexagonal holes 8, through which the screw rods of the hexagonal bolts used for the compression set tester can pass. During installation, the heat insulation top plate 3 is located on the top of the heat insulation sleeve 2 and cooperates with the heat insulation sleeve 2 to be able to set the compression set tester, and comprehensively realize heat insulation for the high-temperature compression set tester.

[0043] The diameter of the second circular holes 12 is equal to the outer diameter of the nuts of the hexagonal bolts used for the compression set tester, so that the screw rods of the hexagonal bolts used for the compression set tester can pass through when the nuts are installed, ensuring that the installation of the hexagonal bolt nuts on the compression set tester can be realized after the compression set tester is comprehensively set.

[0044] To ensure the normal installation and function of the heat-insulating top plate 3, in this embodiment, the outer diameter of the heat-insulating top plate 3 should be greater than the inner diameter of the heat-insulating sleeve 2 to ensure that the heat-insulating top plate 3 is located at the top of the heat-insulating sleeve 2 and will not fall into the heat-insulating sleeve 2. To make the entire clamping-dismantling device more aesthetically pleasing, the diameters of the heat-insulating top plate 3 and the heat-insulating sleeve 2 can be set to be equal.

[0045] In this embodiment, in order to achieve the clamping and dismantling of the compression set tester in this device, the depth of the compression set tester fixing groove 7 should be less than the sum of the heights of the spliced heat-insulating sleeve 2 and the heat-insulating top plate 3, ensuring that the screw rod of the hexagon bolt used for the compression set tester protrudes from the second round hole 12.

[0046] In this embodiment, fixing bolt holes 4 are provided around the fixing base 1, which can cooperate with the first bolt 5 to fix the entire device, preventing the tooling from rotating and displacing during the clamping or dismantling process. To further improve the stability of the clamping-dismantling device, threads that cooperate with the first bolt 5 can be provided in the fixing bolt holes 4.

[0047] In this embodiment, the fixing base 1 is in the shape of a cube, and the heat-insulating sleeve 2, the heat-insulating top plate 3, and the compression set tester fixing groove 7 are in the shape of a cylinder, but are not limited to the above shapes.

[0048] In this embodiment, the specific implementation process of a clamping-dismantling device for rubber compression set measurement is as follows:

[0049] Clamping process: Remove the heat-insulating top plate 3 and the heat-insulating sleeve 2, place the compression set tester tooling in, and place the hexagon bolt used for the tooling correspondingly into the hexagon hole 8 of the compression set tester fixing groove 7. Place the sample in, assemble an appropriate number of first rings 9 and one second ring 13 to form the heat-insulating sleeve 2, cover the heat-insulating top plate 3, and tighten the nut of the hexagon bolt used for the tooling to complete the sample clamping.

[0050] Dismantling process: Remove the heat-insulating top plate 3 and the heat-insulating sleeve 2, assemble an appropriate number of first rings 9 and one second ring 13 to form the heat-insulating sleeve 2 according to the actual situation; place the compression set tooling in, place the hexagon bolt of the tooling correspondingly into the hexagon hole 8 of the compression set tester fixing groove 7 according to the position of the hexagon bolt of the tooling during clamping, cover the assembled heat-insulating sleeve 2 and the heat-insulating top plate 3, and loosen the nut of the hexagon bolt used for the tooling to complete the sample dismantling.

[0051] The above is only the preferred embodiment of the present utility model and is not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A clamping-dismounting device for rubber compression set measurement, characterized in that, Comprising: A fixed base, a heat insulation sleeve and a heat insulation top plate; a compression set fixture groove is provided at the top of the fixed base, and a hexagonal hole is provided in the compression set fixture groove; a plurality of first cylinders are further provided on the top of the fixed base, and the first cylinders are matched with first circular holes provided at the bottom of the heat insulation sleeve to connect the heat insulation sleeve with the fixed base; the heat insulation top plate is provided with second circular holes corresponding to the positions of the hexagonal holes; during installation, the heat insulation top plate is located at the top of the heat insulation sleeve.

2. The clamping-dismounting device for measuring the compression set of rubber according to claim 1, characterized in that The heat insulation sleeve is composed of a first ring and a second ring spliced together.

3. The clamping and disassembling device for rubber compression set measurement according to claim 2, characterized in that, A plurality of first circular holes are provided at the bottom of the first ring, and a plurality of second cylinders are provided at the top.

4. The clamping-dismounting device for rubber compression set measurement according to claim 2, wherein A plurality of first circular holes are provided at the bottom of the second ring, and the second ring is located at the uppermost layer of the first ring.

5. A clamping-dismounting device for rubber compression set measurement according to claim 1, characterized in that The hexagonal hole is matched with the head of the hexagonal bolt used by the compression set to fix the compression set in the compression set fixture groove.

6. The clamping and disassembling device for measuring the compression set of rubber according to claim 1, characterized in that, The diameter of the second circular hole is equal to the outer diameter of the nut of the hexagonal bolt used by the compression set.

7. A clamping-dismounting device for rubber compression set measurement as claimed in claim 1, wherein, The outer diameter of the heat insulation top plate is larger than the inner diameter of the heat insulation sleeve.

8. The clamping-dismounting device for rubber compression set measurement according to claim 1, characterized in that, The depth of the compression set fixture groove and the sum of the heights of the heat insulation sleeve and the heat insulation top plate are less than the length of the hexagonal bolt used by the compression set, ensuring that the screw rod of the hexagonal bolt protrudes from the second circular hole.

9. The clamping-dismantling device for rubber compression set measurement according to claim 1, characterized in that, Fixed bolt holes are provided around the shown fixed base and cooperate with the first bolts.

10. A clamping-dismounting device for rubber compression set measurement according to claim 9, characterized in that, Threads are provided in the fixed bolt holes.