CN107290231B - Torsion equipment for testing material performance - Google Patents

Torsion equipment for testing material performance Download PDF

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Publication number
CN107290231B
CN107290231B CN201710620114.XA CN201710620114A CN107290231B CN 107290231 B CN107290231 B CN 107290231B CN 201710620114 A CN201710620114 A CN 201710620114A CN 107290231 B CN107290231 B CN 107290231B
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China
Prior art keywords
positioning
rotating shaft
screw rod
testing material
material properties
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CN201710620114.XA
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Chinese (zh)
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CN107290231A (en
Inventor
张蓉
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Research Institute of Physical and Chemical Engineering of Nuclear Industry
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Research Institute of Physical and Chemical Engineering of Nuclear Industry
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Priority to CN201710620114.XA priority Critical patent/CN107290231B/en
Publication of CN107290231A publication Critical patent/CN107290231A/en
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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
    • G01N3/26—Investigating twisting or coiling properties
    • 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
    • G01N3/02—Details
    • 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
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Abstract

The invention discloses torsion equipment for testing material performance, wherein the left end and the right end of a bidirectional screw rod are arranged on a base through bearing structures, and the bidirectional screw rod is provided with a first screw rod nut and a second screw rod nut; the top ends of the first screw nut and the second screw nut are fixedly provided with positioning blocks, the rotating shafts penetrate through the inner end and the outer end of each positioning block and extend out of each positioning block, the inner side of any rotating shaft is fixedly provided with a clamp, the outer side of each rotating shaft is fixedly provided with a connecting rod, the connecting rods are perpendicular to the rotating shafts, the other ends of the connecting rods are provided with first holes, and the connecting rods are also provided with second holes for the positioning pins to penetrate through; the front end of the rocker is provided with a third positioning hole and a second positioning hole, the outer side of the positioning block is provided with a plurality of positioning sleeves which are distributed in an annular mode, a cavity is formed in each positioning sleeve, and the side wall of each positioning sleeve is provided with a first positioning hole. The invention has the beneficial effects that: the application range is wide, and the test reliability is high.

Description

Torsion equipment for testing material performance
Technical Field
The invention relates to the technical field of material performance testing, in particular to torsion equipment for material performance testing.
Background
Torsional properties are important criteria for evaluating the overall properties of the material. In order to ensure that the produced materials meet the quality requirement standard, the torsion test is required to be carried out on the produced samples, one end of each sample is fixed, the other end of each sample is stretched, the torsion performance of each sample under a certain load is tested, and then the test mode ensures that the tensile loads received by two ends of each sample are different, and the problem can be effectively solved by stretching the samples from the two ends.
Disclosure of Invention
The invention aims at overcoming the technical defects in the prior art and provides a torsion device for testing material performance.
The technical scheme adopted for realizing the purpose of the invention is as follows:
the torsion equipment for testing the material performance comprises a rocker, a locating pin, a locating sleeve, a first locating hole, a clamp, a locating block, a rotating shaft, a connecting rod, a bidirectional screw rod, a driving motor, a coupler, a bearing structure, a base, a first screw nut, a second locating hole, a third locating hole, a second opening and a first opening;
the left end and the right end of the bidirectional screw rod are arranged on the base through bearing structures, the end parts of the bidirectional screw rod are fixed on an output shaft of the driving motor through a coupler, and the bidirectional screw rod is provided with a first screw rod nut and a second screw rod nut which are in meshed connection with the bidirectional screw rod;
the top ends of the first lead screw nut and the second lead screw nut are fixedly provided with positioning blocks, the two positioning blocks are arranged oppositely, the rotating shafts penetrate through the positioning blocks, the inner end and the outer end of each rotating shaft extend out of the positioning blocks, a clamp is fixedly arranged on the inner side of any rotating shaft, a connecting rod is fixedly arranged on the outer side of any rotating shaft, the connecting rod is perpendicular to the rotating shaft, a first opening for a rocker to penetrate through is formed in the other end of the connecting rod, a second opening for a positioning pin to penetrate through is further formed in the connecting rod, and the second opening is perpendicular to and intersected with the first opening;
the front end of the rocker is provided with a third positioning hole and a second positioning hole which can be penetrated by the positioning pin, the outer side of the positioning block is provided with a plurality of positioning sleeves which are distributed in an annular mode, the distribution of the positioning sleeves takes a rotating shaft as a circle center, a cavity which is coaxial and can be inserted by the rocker is arranged in the positioning sleeve, and the side wall of the positioning sleeve is provided with a first positioning hole which can be penetrated by the positioning pin.
Preferably, positioning rings are welded at two ends of the rotating shaft.
Preferably, the rear end of the rocker is provided with an anti-slip rubber sleeve.
Preferably, twelve positioning sleeves are arranged, and the distance between every two adjacent positioning sleeves is thirty degrees.
Preferably, the fixture comprises a fixed frame, an upper clamping bolt connected with the fixed frame through threads is arranged at the top end of the fixed frame, a lower clamping bolt connected with the fixed frame through threads is arranged at the bottom end of the fixed frame, a first clamping plate is arranged at the bottom end of the upper clamping bolt, and a second clamping plate is arranged at the top end of the lower clamping bolt.
Preferably, anti-skid rubber pads are arranged on clamping surfaces of the first clamping plate and the second clamping plate.
Preferably, the fixture comprises a fixing frame, an upper hydraulic cylinder capable of moving downwards is arranged at the top end of the fixing frame, a first fixing block is arranged at the bottom end of the upper hydraulic cylinder, a lower hydraulic cylinder capable of moving upwards is arranged at the bottom end of the fixing frame, and a second fixing block is arranged at the top end of the lower hydraulic cylinder.
Preferably, the first fixing block and the second fixing block comprise square replacing pieces and round replacing pieces.
Preferably, the square replacement part and the round replacement part are detachably assembled on piston rods of the upper hydraulic cylinder and the lower hydraulic cylinder.
Preferably, the fixing surfaces of the square replacement part and the round replacement part are respectively provided with an anti-skid pad.
Compared with the prior art, the invention has the beneficial effects that:
1. the test sample can be applied with a certain tensile force to test the torsion performance under the action of the certain tensile force, and the left end and the right end of the test sample are simultaneously loaded with the tensile force, so that the stress conditions of the left end and the right end of the test sample are the same, and the reliability of the test is improved.
2. The sample is convenient to fix and detach, convenient to operate, and time-saving and labor-saving.
3. The first fixed block and the second fixed block which can be replaced enable the device to be suitable for testing samples with different shapes, and the application range is wide.
Drawings
Fig. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a schematic diagram of a connection structure of a rocker and a connecting rod.
Fig. 3 is a schematic view of the distribution structure of the positioning sleeve.
Fig. 4 is a schematic structural view of the rocker.
Fig. 5 is a schematic structural view of the jig of embodiment 2.
Fig. 6 is a schematic structural view of the jig of embodiment 3.
Fig. 7 is a schematic structural view of a square shaped replacement.
Fig. 8 is a schematic structural view of a circular replacement.
Wherein:
the device comprises a rocker, a 2-locating pin, a 3-locating sleeve, a 4-first locating hole, a 5-clamp, a 6-locating block, a 7-rotating shaft, an 8-connecting rod, a 9-bidirectional screw, a 10-driving motor, an 11-coupler, a 12-bearing structure, a 13-base, a 14-first screw nut, a 15-second screw nut, a 16-second locating hole, a 17-third locating hole, an 18-anti-skid rubber sleeve, a 19-, a 20-upper hydraulic cylinder, a 21-first fixed block, a 22-second fixed block, a 23-fixed frame, a 24-upper clamping bolt, a 25-first clamping plate, a 26-second clamping plate, a 27-lower clamping bolt, a 28-square replacement, a 29-round replacement, a 30-second opening and a 31-first opening.
Detailed Description
The invention is described in further detail below with reference to the drawings and the specific examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1, the torsion device for testing material performance in this embodiment includes a rocker 1, a positioning pin 2, a positioning sleeve 3, a first positioning hole 4, a clamp 5, a positioning block 6, a rotating shaft 7, a connecting rod 8, a bidirectional screw 9, a driving motor 10, a coupling 11, a bearing structure 12, a base 13, a first screw nut 14, a second screw nut 15, a second positioning hole 16, a third positioning hole 17, an anti-slip rubber sleeve 18, a second opening 30, and a first opening 31;
the left end and the right end of the bidirectional screw rod 9 are arranged on a base 13 through a bearing structure 12, the end part of the bidirectional screw rod 9 is fixed on an output shaft of a driving motor 10 through a coupler 11, a first screw nut 14 and a second screw nut 15 which are in meshed connection with the bidirectional screw rod 9 are arranged on the bidirectional screw rod 9, positioning blocks 6 are fixedly arranged at the top ends of the first screw nut 14 and the second screw nut 15, two positioning blocks 6 are oppositely arranged, a rotating shaft 7 penetrates through the positioning blocks 6, the inner end and the outer end extend out of the positioning blocks 6, a clamp 5 is fixedly arranged at the inner side of any rotating shaft 7, a connecting rod 8 is fixedly arranged at the outer side of any rotating shaft 7, the connecting rod 8 is vertically arranged with the rotating shaft 7, a first opening 31 for a rocker 1 to penetrate through is arranged at the other end of the connecting rod 8, a second opening 30 for a positioning pin 2 to penetrate through is further arranged on the connecting rod 8, and the second opening 30 is vertically and intersected with the first opening 31;
the front end of the rocker 1 is provided with a third positioning hole 17 and a second positioning hole 16 through which the positioning pin 2 can pass, the rear end of the rocker 1 is provided with an anti-slip rubber sleeve 18 (shown in fig. 4), the outer side of the positioning block 6 is provided with a plurality of positioning sleeves 3 distributed in a ring shape, the distribution of the positioning sleeves 3 takes a rotating shaft 7 as a circle center (shown in fig. 3), the positioning sleeves 3 are internally provided with coaxial cavities through which the rocker 1 can be inserted, and the side wall of the positioning sleeve 3 is provided with a first positioning hole 4 through which the positioning pin 2 can pass;
twelve positioning sleeves 3 are arranged, and the distance between every two adjacent positioning sleeves 3 is thirty degrees.
Positioning rings are welded at two ends of the rotating shaft 7.
The operation mode is as follows:
during the use, fix the material of waiting to test on the anchor clamps 5 of two locating pieces 6 inboard respectively, start driving motor 10, driving motor 10 drives bi-directional lead screw 9 and rotates, first lead screw nut 14, second lead screw nut 15 keep away from each other to pulling the material of waiting to test makes it bear certain pulling force, control the mode of loading pulling force simultaneously, make the atress of sample more even, improve test result's reliability.
The rocker 1 is fixed in the second opening 30 at the end part of the connecting rod 8 by using the locating pin 2, at this time, the locating pin 2 sequentially passes through the second opening 30 and the third locating hole 17 (as shown in the connecting structure of the rocker 1, the connecting rod 8 and the locating pin 2 in fig. 1) to shake the rocker 1, the rocker 1 drives the rotating shaft 7 to rotate, the rotating shaft 7 drives the clamp 5 to rotate, the clamp 5 drives the test sample to twist, when the test sample rotates to a required angle, such as thirty degrees, the locating pin 2 is pulled out, the rocker 1 is pushed inwards to be inserted into the cavity of the locating sleeve 3 at the thirty degrees, at this time, the locating pin 2 sequentially passes through the second opening 30 and the second locating hole 16, and the locating pin 2 can fix the positions of the rocker 1 and the connecting rod 8 (as shown in the connecting structure of the rocker 1, the connecting rod 8 and the locating pin 2 in fig. 1).
The positioning ring can limit the position of the rotating shaft 7, and prevent the rotating shaft 7 from moving back and forth in the positioning block 6, so that the rotating shaft only rotates in the positioning block 6.
Example 2
This embodiment is an improvement on the basis of embodiment 1, as shown in fig. 5, the fixture 5 includes a fixed frame 23, an upper clamping bolt 24 screwed with the fixed frame 23 is provided at the top end of the fixed frame 23, a lower clamping bolt 27 screwed with the fixed frame 23 is provided at the bottom end of the fixed frame 23, a first clamping plate 25 is provided at the bottom end of the upper clamping bolt 24, and a second clamping plate 26 is provided at the top end of the lower clamping bolt 27.
The clamping surfaces of the first clamping plate 25 and the second clamping plate 26 are respectively provided with an anti-skid rubber pad.
The working mode is as follows:
in use, a material to be tested is placed in the middle of the fixed frame 23, the clamping bolts 24 and the lower clamping bolts 27 are screwed simultaneously, the first clamping plate 25 moves downwards, the second clamping plate 26 moves upwards, and the material to be tested is fixed between the first clamping plate 25 and the second clamping plate 26.
The anti-slip rubber pad has the function of anti-slip and stabilizing the test sample.
Example 3
This embodiment is an improvement on the basis of embodiment 1, as shown in fig. 6, the fixture 5 includes a fixing frame 19, an upper hydraulic cylinder 20 capable of moving downward is disposed at the top end of the fixing frame 19, a first fixing block 21 is disposed at the bottom end of the upper hydraulic cylinder 20, a lower hydraulic cylinder 23 capable of moving upward is disposed at the bottom end of the fixing frame 19, and a second fixing block 22 is disposed at the top end of the lower hydraulic cylinder 23.
The working mode is as follows;
when the tester is used, the upper hydraulic cylinder 20 and the lower hydraulic cylinder 23 are started simultaneously, the first fixing block 21 and the second fixing block 22 move in opposite directions at the same speed, and the material to be tested can be accurately fixed at the center of the fixing frame 19, so that the heights of the two ends of the tested material are the same, the level of the tested material is maintained, the tensile force is also horizontal, and the reliability of the test is improved.
Example 4
This embodiment is modified on the basis of embodiment 3, and as shown in fig. 7 and 8, the first fixing block 21 and the second fixing block 22 each include a square replacement 28 and a circular replacement 29. The square replacement part and the round replacement part are detachably assembled on piston rods of the upper hydraulic cylinder and the lower hydraulic cylinder, and anti-slip pads are arranged on fixing surfaces of the square replacement part and the round replacement part.
The working mode is as follows:
in this embodiment, the replacement for response may be selected according to the cross-sectional shape of the sample to be tested, and when the material to be tested is a circular rubber strip, the circular replacement 29 may be selected, and when the material to be tested is a square rubber strip, the square replacement 28 may be selected.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims (10)

1. The torsion equipment for testing the material performance is characterized by comprising a rocker, a locating pin, a locating sleeve, a first locating hole, a clamp, a locating block, a rotating shaft, a connecting rod, a bidirectional screw rod, a driving motor, a coupler, a bearing structure, a base, a first screw nut, a second locating hole, a third locating hole, a second opening and a first opening;
the left end and the right end of the bidirectional screw rod are arranged on the base through bearing structures, the end parts of the bidirectional screw rod are fixed on an output shaft of the driving motor through a coupler, and the bidirectional screw rod is provided with a first screw rod nut and a second screw rod nut which are in meshed connection with the bidirectional screw rod;
the top ends of the first lead screw nut and the second lead screw nut are fixedly provided with positioning blocks, the two positioning blocks are arranged oppositely, the rotating shafts penetrate through the positioning blocks, the inner end and the outer end of each rotating shaft extend out of the positioning blocks, a clamp is fixedly arranged on the inner side of any rotating shaft, a connecting rod is fixedly arranged on the outer side of any rotating shaft, the connecting rod is perpendicular to the rotating shaft, a first opening for a rocker to penetrate through is formed in the other end of the connecting rod, a second opening for a positioning pin to penetrate through is further formed in the connecting rod, and the second opening is perpendicular to and intersected with the first opening;
the front end of the rocker is provided with a third positioning hole and a second positioning hole which can be penetrated by the positioning pin, the outer side of the positioning block is provided with a plurality of positioning sleeves which are distributed in an annular mode, the distribution of the positioning sleeves takes a rotating shaft as a circle center, a cavity which is coaxial and can be inserted by the rocker is arranged in the positioning sleeve, and the side wall of the positioning sleeve is provided with a first positioning hole which can be penetrated by the positioning pin.
2. The torsion apparatus for testing material properties according to claim 1, wherein positioning rings are welded to both ends of the rotating shaft.
3. The torsion device for testing material properties according to claim 1, wherein the rear end of the rocker is provided with an anti-slip rubber sleeve.
4. The twisting apparatus for testing material properties according to claim 1, wherein twelve positioning sleeves are provided, and a distance between each adjacent two positioning sleeves is thirty degrees.
5. The twisting apparatus for testing material properties according to claim 1, wherein the jig comprises a fixed frame, an upper clamping bolt connected with the fixed frame by screw threads is provided at a top end of the fixed frame, a lower clamping bolt connected with the fixed frame by screw threads is provided at a bottom end of the fixed frame, a first clamping plate is provided at a bottom end of the upper clamping bolt, and a second clamping plate is provided at a top end of the lower clamping bolt.
6. The torsion device for testing material properties according to claim 5, wherein the clamping surfaces of the first clamping plate and the second clamping plate are provided with anti-slip rubber pads.
7. The twisting apparatus for testing material properties according to claim 1, wherein the jig comprises a fixing frame, an upper hydraulic cylinder capable of moving downward is provided at a top end of the fixing frame, a first fixing block is provided at a bottom end of the upper hydraulic cylinder, a lower hydraulic cylinder capable of moving upward is provided at a bottom end of the fixing frame, and a second fixing block is provided at a top end of the lower hydraulic cylinder.
8. The torsional apparatus for testing material properties of claim 7, wherein the first and second fixed blocks each include square substitutes and circular substitutes.
9. The torsion apparatus for testing material properties according to claim 8, wherein the square-shaped replacement member and the circular-shaped replacement member are detachably mounted on piston rods of the upper and lower hydraulic cylinders.
10. The torsion apparatus for testing material properties according to claim 8, wherein the fixing surfaces of the square and round substitutes are each provided with a slip-resistant pad.
CN201710620114.XA 2017-07-26 2017-07-26 Torsion equipment for testing material performance Active CN107290231B (en)

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Application Number Priority Date Filing Date Title
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CN107290231B true CN107290231B (en) 2023-06-30

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CN108458866A (en) * 2018-04-10 2018-08-28 刘超 A kind of torsion test structure of ellipse loss of weight rubber parts
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Citations (4)

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Publication number Priority date Publication date Assignee Title
CN203811485U (en) * 2014-04-18 2014-09-03 吉林大学 Stretching-twisting combined loading material micro mechanical property in-situ tester
CN104990794A (en) * 2015-07-09 2015-10-21 东北大学 Tension-torsion testing machine and testing method thereof
CN106568658A (en) * 2016-11-01 2017-04-19 西安交通大学 Device and method for measuring different torsion and stretching properties of material in micro-nano level
CN207114339U (en) * 2017-07-26 2018-03-16 核工业理化工程研究院 A kind of material properties test torsion equipment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203811485U (en) * 2014-04-18 2014-09-03 吉林大学 Stretching-twisting combined loading material micro mechanical property in-situ tester
CN104990794A (en) * 2015-07-09 2015-10-21 东北大学 Tension-torsion testing machine and testing method thereof
CN106568658A (en) * 2016-11-01 2017-04-19 西安交通大学 Device and method for measuring different torsion and stretching properties of material in micro-nano level
CN207114339U (en) * 2017-07-26 2018-03-16 核工业理化工程研究院 A kind of material properties test torsion equipment

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