CN106932289B - Rapid rebound device for measuring rebound characteristics of rubber materials - Google Patents
Rapid rebound device for measuring rebound characteristics of rubber materials Download PDFInfo
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- CN106932289B CN106932289B CN201710222584.0A CN201710222584A CN106932289B CN 106932289 B CN106932289 B CN 106932289B CN 201710222584 A CN201710222584 A CN 201710222584A CN 106932289 B CN106932289 B CN 106932289B
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- 239000000463 material Substances 0.000 title claims abstract description 46
- 230000006835 compression Effects 0.000 claims abstract description 73
- 238000007906 compression Methods 0.000 claims abstract description 73
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 23
- 238000012360 testing method Methods 0.000 claims description 21
- 238000013016 damping Methods 0.000 claims description 8
- 230000001133 acceleration Effects 0.000 claims description 4
- 238000010998 test method Methods 0.000 claims description 4
- 229920001967 Metal rubber Polymers 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/40—Investigating hardness or rebound hardness
- G01N3/52—Investigating hardness or rebound hardness by measuring extent of rebound of a striking body
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0076—Hardness, compressibility or resistance to crushing
- G01N2203/0083—Rebound strike or reflected energy
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- General Physics & Mathematics (AREA)
- Immunology (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a quick rebounding device for measuring rebounding characteristics of rubber materials, which comprises a device base, a lower platform arranged on the device base, an upper platform connected with the lower platform through a support shaft, a clamp arranged at the middle position of the lower platform, a bidirectional loading cylinder inverted on the upper platform, two movable cross beam sliding shafts arranged between the upper platform and the lower platform, movable cross beams arranged on the two movable cross beam sliding shafts, two compression cross beam sliding shafts arranged on the lower end surfaces of the movable cross beams, a lower compression cross beam connected with the lower end parts of the two compression cross beam sliding shafts, an upper compression cross beam arranged on the two compression cross beam sliding shafts, two springs arranged between the upper compression cross beam and the lower compression cross beam, an upper pressure head arranged at the lower end of the lower compression cross beam, the springs are sleeved on the corresponding compression cross beam sliding shafts, the output end of the bidirectional loading cylinder penetrates through the upper platform, and a lower pressure, The movable beam is connected with the upper compression beam. The invention has simple operation, stable performance and wide applicability.
Description
Technical Field
The invention relates to a device for testing the resilience characteristic of a material, in particular to a quick resilience device for measuring the resilience characteristic of a rubber material, and belongs to the field of material performance testing.
Background
At present, in the field of material performance test, a plurality of test methods related to the material resilience performance are not available. The sealing property of the rubber sealing ring is applied to various fields such as ships, spaceflight, automobiles and the like. The rebound characteristic is one of important characteristics for representing the dynamic sealing efficiency of the rubber material, and reflects the deformation characteristic shown by free release of elastic internal energy after the material is pressed to reach an entropy equilibrium state. Therefore, it is important to study the rebound property of the rubber material. The existing testing method is relatively complex in mechanical structure, relatively low in rebound speed of the rebound mechanism, complex in testing process and relatively high in requirement on testers. Meanwhile, the measurement precision is low, the error of the test result is large, and the practicability is not strong.
Compared with other prior inventions, the invention has obvious technical improvement and promotion. The invention mainly comprises three main parts, namely a high-speed bidirectional cylinder system, a rebounding mechanism system, a comprehensive console and the like. The main structures of the high-speed bidirectional cylinder system, the rebounding mechanism system and the like are relatively simple, and the test system is simple and convenient to operate. When the material rebound rate is tested, the rebound mechanism system can enable an upper pressure head on the ballast material to rapidly leave, and the measurement error is greatly reduced.
Disclosure of Invention
The invention aims to provide a quick rebound device for measuring the rebound property of a rubber material aiming at the defects of the existing test technology of the rebound rate of the rubber material.
The purpose of the invention is realized as follows: comprises a device base, a lower platform arranged on the device base, an upper platform connected with the lower platform through a supporting shaft, a clamp arranged at the middle position of the lower platform, a bidirectional loading cylinder inverted on the upper platform, two movable cross beam sliding shafts arranged between the upper platform and the lower platform, a movable cross beam arranged on the two movable cross beam sliding shafts through a bearing, two compression cross beam sliding shafts arranged on the lower end surface of the movable cross beam, a lower compression cross beam connected with the lower end parts of the two compression cross beam sliding shafts, an upper compression cross beam arranged on the two compression cross beam sliding shafts through a bearing, two springs arranged between the upper compression cross beam and the lower compression cross beam, and an upper pressure head arranged at the lower end of the lower compression cross beam, wherein the springs are sleeved on the corresponding compression cross beam sliding shafts, and the output end of the bidirectional loading cylinder is connected with the upper compression cross beam after passing through the upper platform and the, the material to be tested is placed on the fixture.
The invention also includes such structural features:
1. the fixture comprises a fixture support, a distance base, a lower pressure head and a pressure sensor, wherein the distance base is arranged in the fixture support and can be adjusted, the lower pressure head is arranged on the distance base, the pressure sensor is arranged at the lower end of the lower pressure head, and the material to be measured is placed on the fixture, namely the material to be measured is placed on the lower pressure head.
2. And the lower end face of the upper platform is also provided with a damping block.
3. The damping block is a metal rubber block.
Compared with the prior art, the invention has the beneficial effects that: the invention applies compression load by adopting a high-speed bidirectional loading cylinder, and utilizes a compression spring to buffer the acceleration time in the rebound process of the cylinder, the lower pressure head keeps the position unchanged in the load releasing process, the load of the material to be measured is measured by a pressure sensor, and the position of the upper pressure head is measured by an acceleration sensor or a scale sensor. A better test device is designed for researching the rebound property of materials, particularly rubber materials.
The test system disclosed by the invention is simple to operate, stable in performance and wide in applicability, and can realize accurate test of the resilience characteristics of various materials through the rapid resilience of the ballast device of the material to be tested. When the spring rebounds, the speed of 2m/s can be achieved by utilizing the combined action of the high-speed bidirectional loading cylinder and the restoring force of the spring;
drawings
FIG. 1 is a schematic view of the overall arrangement of the apparatus of the present invention;
fig. 2 is a schematic view of the structure of the clamp.
In the figure: 1. the device comprises a high-speed bidirectional loading cylinder, 2, a piston, 3, a connecting rod, 4, an upper platform, 5, a damping block, 6, a compression beam sliding shaft, 7, a movable beam, 8, an upper compression beam, 9, a spring, 10, a supporting shaft, 11, a lower compression beam, 12, an upper pressure head, 13, a clamp, 14, a movable beam sliding shaft, 15, a lower platform, 16, a device base, 13-1, a lower pressure head, 13-2, a distance base, 13-3, a pressure sensor, 13-4 and a clamp support seat
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
With reference to fig. 1-2, the invention discloses a quick rebounding device for measuring rebounding characteristics of rubber materials, which mainly comprises a high-speed bidirectional cylinder system, a rebounding mechanism system, a comprehensive console and the like. The high-speed bidirectional cylinder system comprises a gas cylinder 1, a piston 2, a connecting rod 3, a gas inlet hole, a gas outlet hole, a high-pressure gas chamber and the like, wherein the gas inlet hole and the gas outlet hole with valves are respectively arranged at the top and the bottom of the cylinder, the gas inlet hole is connected with the high-pressure gas chamber, the gas outlet hole is connected with the outside, the bottom of the cylinder is tightly connected with an upper platform, and the maximum movement speed of the piston can reach 2 m/s.
The rebounding mechanism system mainly comprises a compression cross beam sliding shaft 6, a moving cross beam 7, an upper compression cross beam 8, a spring 9, a supporting shaft 10, a lower compression cross beam 11, an upper pressure head 12, an upper platform 4, a lower platform 15 and the like, and the system is loaded by the spring. The spring is made of 60Si2Mn material with the pitch of 22mm and the diameter of 12mm, and the cylindrical spiral compression spring with two ends coiled and ground is effective for 10 turns and total 12 turns. The upper compression cross beam, the lower compression cross beam and the movable cross beam are made of the same material and are made of high-strength alloy steel, wherein the upper compression cross beam is high in mass, so that the upper compression cross beam and the movable cross beam can move upwards at a high speed after colliding with the movable cross beam; the clamp comprises a lower pressure head 13-1, a distance base 13-2, a pressure sensor 13-3, a clamp support 13-4 and the like, and the upper height and the lower height of the lower pressure head can be adjusted according to the size of a material to be measured;
four supporting shafts 10 and two movable cross beam sliding shafts 14 are arranged between an upper platform and a lower platform, a movable cross beam 7 is arranged on the two movable cross beam sliding shafts 14 through an axial sliding bearing, two compressed cross beam sliding shafts 6 are arranged between the movable cross beam 7 and a lower compressed cross beam 11, an upper compressed cross beam 8 is arranged on the compressed cross beam sliding shafts through the axial sliding bearing, a spring is arranged on the compressed cross beam sliding shaft between the upper compressed cross beam and the lower compressed cross beam, a movable cross beam impact energy-absorbing damping block is arranged at the bottom of the upper platform, a clamp device is arranged on the upper bottom surface of the lower platform, and each shaft end part in the device is spirally fixed with metal rubber of which the damping block is arranged on the bottom surface of the upper platform.
During testing, the pressure sensor in the clamp can test the compression load and adjust the position of the load to be tested, and the loading precision can reach 0.001 mm. The rebound mechanism system can make the upper pressure head quickly rebound by utilizing a rebound spring, and the rebound rate is more than or equal to 1000 mm/s. The displacement-time curve of the sealing ring can be accurately measured by selecting a proper displacement measuring device, so that the rebound characteristic of the sealing ring can be accurately measured.
With reference to fig. 1 and 2, the quick rebounding device for measuring rebounding characteristics of rubber materials comprises a high-speed bidirectional loading cylinder 1, a piston 2, a connecting rod 3, an upper platform 4, a damping block 5, a compression beam sliding shaft 6, a movable beam 7, an upper compression beam 8, a spring 9, a support shaft 10, a lower compression beam 11, an upper pressure head 12, a clamp 13, a movable beam sliding shaft 14, a lower platform 15, a device base 16 and the like.
(1) When the device does not work, the device is in a free state, the spring 9 is in a compression state under the self weight of the upper compression beam 8, the upper compression beam 8 is tightly contacted with the movable beam 7, and the upper pressure head 12 is not contacted with the clamp 13.
(2) During the test, the high-speed bidirectional loading cylinder 1 is loaded by controlling the comprehensive test bed. The piston 2 moves downwards with a concomitant downward movement of the lower compression beam 11, the spring 9 not undergoing compression deformation at this stage.
(3) With the downward movement of the lower compression cross beam 11, after the upper pressure head 12 is contacted with a material to be tested, the upper compression cross beam continues to move downward until the upper pressure head is contacted with the clamp support 13-4, the positions of the movable cross beam 7 and the lower compression cross beam 11 are kept unchanged, the upper compression cross beam 8 continues to move downward to compress the spring 9 under the action of the high-speed bidirectional cylinder 1, and the downward movement of the piston 2 is stopped when the ballast reaches the experimental requirement under the control of the comprehensive control console.
(4) When unloading is started, the piston 2 in the high-speed bidirectional loading cylinder 1 moves upwards rapidly, but before the upper compression beam 8 touches the moving beam 7, the pressure of the spring 9 enables the piston 2 to obtain acceleration and ensures that the upper pressure head 12 still keeps a compression state with the material to be measured.
(5) When the upper compression beam 8 touches the moving beam 7, the upper compression beam 8, the moving beam 7 and the piston 2 move upwards at the same speed, and the rebound characteristic of the material to be tested is tested.
(6) And after the test is finished, the device recovers the original state, the load-time curve of the material to be measured is measured through the pressure sensor, and the rebound displacement-time curve is obtained by utilizing the displacement measuring device.
(7) And (4) turning off the measuring device such as the computer and cutting off the power supply.
In summary, the invention relates to a quick rebounding device for measuring the rebounding characteristic of a rubber material, which belongs to the device in the field of material performance testing. The test system consists of three main parts, namely a high-speed bidirectional cylinder system, a rebound mechanism system, a comprehensive control platform and the like. The device can realize the quick rebound of the rubber material to be measured under the combined action of the high-speed bidirectional cylinder and the compression spring, so that the rebound characteristic of the rubber material can be accurately measured. The test system is simple to operate, stable in performance, high in rebound speed and wide in applicability, and can accurately test the rebound characteristics of various materials.
Claims (3)
1. A test method of a quick rebound device for measuring the rebound characteristics of rubber materials is characterized in that: the quick rebounding device comprises a device base, a lower platform arranged on the device base, an upper platform connected with the lower platform through a support shaft, a clamp arranged at the middle position of the lower platform, a bidirectional loading cylinder inverted on the upper platform, two movable cross beam sliding shafts arranged between the upper platform and the lower platform, movable cross beams arranged on the two movable cross beam sliding shafts through bearings, two compression cross beam sliding shafts arranged on the lower end face of each movable cross beam, a lower compression cross beam connected with the lower end parts of the two compression cross beam sliding shafts, an upper compression cross beam arranged on the two compression cross beam sliding shafts through bearings, two springs arranged between the upper compression cross beam and the lower compression cross beam, and an upper pressure head arranged at the lower end of the lower compression cross beam, wherein the springs are sleeved on the corresponding compression cross beam sliding shafts, and the output end of the bidirectional loading cylinder penetrates through the upper platform, The movable cross beam is connected with the upper compression cross beam, and the material to be detected is placed on the clamp; the clamp comprises a clamp support, a distance base which is arranged in the clamp support and can adjust the position, a lower pressure head arranged on the distance base, and a pressure sensor arranged at the lower end of the lower pressure head, wherein the material to be tested is placed on the clamp, namely the material to be tested is placed on the lower pressure head;
when the quick rebounding device does not work, the quick rebounding device is in a free state, the spring is in a compressed state under the self weight of the upper compression cross beam, the upper compression cross beam is in close contact with the movable cross beam, and the upper pressure head is not in contact with the clamp;
during testing, the bidirectional loading cylinder is loaded by controlling the comprehensive test bed, a piston in the bidirectional loading cylinder moves downwards, the lower compression cross beam moves downwards along with the downward movement, and the spring does not generate compression deformation at the stage; with the downward movement of the lower compression cross beam, after the upper pressure head is contacted with a material to be tested, the upper compression cross beam continues to move downward until the upper pressure head is contacted with the clamp support, the positions of the movable cross beam and the lower compression cross beam are kept unchanged, the upper compression cross beam continues to move downward to compress the spring under the action of the bidirectional loading cylinder, and when the ballast reaches the experimental requirement, the downward movement of the piston is stopped;
unloading is started, a piston in the bidirectional loading cylinder rapidly moves upwards, and before the upper compression cross beam touches the moving cross beam, the pressure of the spring enables the piston to obtain acceleration and ensures that an upper pressure head still keeps a compression state with the material to be tested; when the upper compression cross beam touches the movable cross beam, the upper compression cross beam, the movable cross beam and the piston move upwards at the same speed, and the rebound characteristic of the material to be tested is tested.
2. The test method of the quick rebounding device for measuring the rebounding characteristic of the rubber-like material according to claim 1, is characterized in that: and the lower end face of the upper platform is also provided with a damping block.
3. The test method of the quick rebounding device for measuring the rebounding characteristic of the rubber-like material according to claim 2, is characterized in that: the damping block is a metal rubber block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710222584.0A CN106932289B (en) | 2017-04-07 | 2017-04-07 | Rapid rebound device for measuring rebound characteristics of rubber materials |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710222584.0A CN106932289B (en) | 2017-04-07 | 2017-04-07 | Rapid rebound device for measuring rebound characteristics of rubber materials |
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| CN106932289A CN106932289A (en) | 2017-07-07 |
| CN106932289B true CN106932289B (en) | 2020-04-07 |
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| CN201710222584.0A Active CN106932289B (en) | 2017-04-07 | 2017-04-07 | Rapid rebound device for measuring rebound characteristics of rubber materials |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110231226A (en) * | 2019-05-21 | 2019-09-13 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of dynamic compressive test method of rubber seal under electric field action |
| CN111307632B (en) * | 2020-04-13 | 2022-09-09 | 惠东县三宏橡塑科技有限公司 | Detection equipment for compression rebound rate of rubber foam material |
| CN112378795B (en) * | 2020-09-27 | 2022-07-19 | 福建华检质检技术服务有限公司 | Device for efficiently detecting elastic property of sole |
| CN113484171B (en) * | 2021-06-30 | 2023-10-31 | 舟山市海盟船汽配研发中心有限公司 | Device and method for analyzing compression rebound resilience performance of metal gasket sealing line |
| CN115592865B (en) * | 2022-09-14 | 2023-11-10 | 扬州博宏自动化设备有限公司 | Double-station steam shaping equipment |
| CN115791403B (en) * | 2022-12-09 | 2023-07-18 | 哈尔滨工业大学（威海） | Pressure head loading device for normal loading sheet micro-tensile test device |
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2017
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|---|---|---|---|---|
| US5739411A (en) * | 1995-11-13 | 1998-04-14 | Callaway Golf Company | Accelerated impact testing apparatus |
| CN201724875U (en) * | 2010-07-14 | 2011-01-26 | 天津市津维电子仪表有限公司 | Steel anvil calibration device of semiautomatic resiliometer |
| CN102678807A (en) * | 2012-05-30 | 2012-09-19 | 哈尔滨工程大学 | Adjustable metal rubber three-way vibration damper |
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Non-Patent Citations (1)
| Title |
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| 固体火箭发动机密封材料(F108)回弹特性研究;闫平义 等;《宇航材料工艺》;20011231(第6期);第21页及附图1 * |
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Effective date of registration: 20231030 Address after: 150028 Building 2, innovation and entrepreneurship Plaza, science and technology innovation city, high tech Industrial Development Zone, Harbin, Heilongjiang Province (No. 719, science and technology first street) a205-14 Patentee after: Harbin Deye Hangyu New Material Technology Co.,Ltd. Address before: 150001 Intellectual Property Office, Harbin Engineering University science and technology office, 145 Nantong Avenue, Nangang District, Harbin, Heilongjiang Patentee before: HARBIN ENGINEERING University |