CN116202873B - Tensile strength detection device for polyurethane foam plastics - Google Patents
Tensile strength detection device for polyurethane foam plastics Download PDFInfo
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- CN116202873B CN116202873B CN202310477148.3A CN202310477148A CN116202873B CN 116202873 B CN116202873 B CN 116202873B CN 202310477148 A CN202310477148 A CN 202310477148A CN 116202873 B CN116202873 B CN 116202873B
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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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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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
- G01N3/02—Details
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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
- G01N3/02—Details
- G01N3/04—Chucks
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention belongs to the field of mechanical stress testing of materials, in particular to a tensile strength detection device for polyurethane foam plastics, which comprises a base, wherein a lifting machine body is arranged on the base, and a lifting frame is connected to the lifting machine body; the base and the lifting frame are connected with clamp assemblies for clamping and fixing two ends of the plastic test piece; the lifting frame is connected with a horizontally arranged screw rod and a driving motor for driving the screw rod to rotate, a sliding hole which is arranged in parallel with the screw rod is formed in the lifting frame, a swinging mechanism for driving the clamp assembly to swing is connected in the sliding hole, the swinging mechanism comprises a sliding frame with an inverted U-shaped structure, and the sliding frame is connected with a swinging frame in a rotating mode; according to the invention, the clamp assembly is driven by the driving motor to move on the lifting frame, so that the tensile strength of the plastic test piece in the deflection direction can be tested, and the swinging mechanism is connected to the lifting frame, so that the tensile effect of the plastic test piece when swinging can be tested, and the testing functionality of the device is increased.
Description
Technical Field
The invention relates to the field of mechanical stress testing of materials, in particular to a tensile strength detection device for polyurethane foam plastics.
Background
The polyurethane foam plastic is prepared by polymerizing and foaming isocyanate and hydroxyl compound, and can be divided into soft and hard according to the hardness, the physical properties of the polyurethane foam plastic need to be tested after the polyurethane foam plastic is molded, and the polyurethane foam plastic is commonly used as a plastic tensile testing machine for testing the tensile strength, compressive strength and elongation of various materials, semi-finished products and finished products, can be used for peeling, tearing, bending resistance, compression and other tests, and is suitable for industries of metal, plastic, rubber, textile, synthetic chemicals, wires and cables, leather and the like.
When the existing plastic tensile force is tested for the tensile property of the plastic, the tensile machine is generally adopted for vertical stretching to collect tensile force data, but after the plastic is put into practical application, the tensile force born by the plastic is generally not uniform slow tensile force, the stretching direction and angle are also changed due to different practical use conditions, and for the strip-shaped plastic, the swinging and shaking conditions exist during practical use, the existing tensile testing machine only stretches in the vertical direction, and then the situation that the data collected by the tensile test are not matched with the practical use data occurs.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a tensile strength detection device for polyurethane foaming plastics, which simulates the actual use tensile force condition of plastics by stretching the plastics in different directions and swinging the plastics on a lifting frame, and aims to solve the problems in the background art.
In order to achieve the technical aim, the specific technical scheme of the invention is that the tensile strength detection device for the polyurethane foaming plastic comprises a base, wherein a lifting machine body is arranged on the base, and a lifting frame is connected to the lifting machine body; the base and the lifting frame are connected with clamp assemblies for clamping and fixing two ends of the plastic test piece; the lifting frame is connected with a horizontally arranged screw rod and a driving motor for driving the screw rod to rotate, a sliding hole which is arranged in parallel with the screw rod is formed in the lifting frame, a swinging mechanism for driving the clamp assembly to swing is connected in the sliding hole, and the swinging mechanism is fixedly connected with the clamp assembly; the swing mechanism comprises a sliding frame with an inverted U-shaped structure, the sliding frame is in sliding connection with the sliding hole, a threaded block in threaded connection with the screw rod is fixedly connected to the sliding frame, a swing frame is connected to the sliding frame in a rotating mode, and the swing frame is fixedly connected with the clamp assembly.
As an optimized technical scheme of the invention, a swinging motor is arranged on the sliding frame, an eccentric wheel is fixedly connected to a rotating shaft of the swinging motor, a connecting block is connected to the eccentric wheel, a sliding rod is fixedly connected to the swinging frame, and the connecting block is in sliding connection with the sliding rod.
As a preferable technical scheme of the invention, a limiting groove is arranged on the inner wall of the sliding hole, and a limiting block which is in sliding connection with the limiting groove is arranged on the side face of the sliding frame.
As a preferable technical scheme of the invention, the clamp assembly comprises a clamp seat, a dovetail groove is arranged at the lower end of the clamp seat, a character-protruding groove is arranged above the dovetail groove, a movable frame capable of moving up and down is connected in a sliding manner in the character-protruding groove, an elastic assembly is connected between the movable frame and the top wall of the character-protruding groove, a clamp seat is fixedly connected to the lower surface of the movable frame, and a pair of clamps attached to the inner wall of the dovetail groove are connected to the lower surface of the clamp seat.
As a preferable technical scheme of the invention, the chuck is in sliding connection with the chuck seat, a spring seat is fixedly connected with the center of the lower surface of the chuck seat, and a spring is fixedly connected between the spring seat and the chuck.
As a preferable technical scheme of the invention, two clamping heads are fixedly connected with clamping blocks on opposite surfaces, the clamping blocks are of an inverted L-shaped structure, a pair of first clamping columns are symmetrically and fixedly connected to the surfaces of the clamping blocks, a movable second clamping column is arranged between the two first clamping columns, and avoidance grooves matched with the second clamping columns are formed in the surfaces of the clamping blocks.
As a preferable technical scheme of the invention, the clamping block is provided with a strip-shaped hole matched with the second clamping column in a moving way, the second clamping column is fixedly connected with a shaft lever, the clamping head is rotationally connected with a rotating piece for driving the second clamping column to move, the clamping head is provided with a mounting groove matched with the rotating piece in a mounting way, and the rotating piece is provided with an eccentric arc-shaped hole matched with the shaft lever in a sliding way.
As a preferable technical scheme of the invention, the first clamping column and the second clamping column are of prismatic structures, and friction surfaces are arranged on the surfaces of the first clamping column and the second clamping column.
As a preferable technical scheme of the invention, the inner wall of the dovetail groove is fixedly connected with a limiting plate for limiting the clamping head.
The beneficial effects of the invention are as follows:
1. according to the invention, the screw rod and the driving motor are arranged on the lifting frame, the driving motor drives the clamp assembly to move on the lifting frame, so that the tensile strength of the plastic test piece in the deflection direction can be tested, the swinging mechanism is connected to the lifting frame, the tensile effect of the plastic test piece when swinging can be tested, and the test data is more similar to the actual use condition of the plastic test piece.
2. According to the invention, the first clamping column and the second clamping column are respectively connected to the clamping head, the second clamping column can move on the clamping block, the rotating piece is rotationally connected to the clamping head, the second clamping column is driven to move when the rotating piece rotates, and when the first clamping column and the second clamping column are positioned on the same vertical surface, the clamping block can be used for clamping and fixing a flat plastic test piece; when the second clamp column moves to the inner side of the clamp block, the clamp head can be used for clamping and fixing the plastic test pieces in round bar shapes, and the clamping and fixing effects of the clamp assembly on the plastic test pieces in different shapes are improved.
Drawings
Fig. 1 is a schematic structural diagram of a tensile strength detecting device for polyurethane foam.
Fig. 2 is a schematic structural diagram of a lifting frame according to the present invention.
Fig. 3 is a schematic structural view of a rocking mechanism according to the present invention.
Fig. 4 is a schematic structural diagram of a clamp assembly according to the present invention.
Fig. 5 is a schematic front view of a clamp assembly according to the present invention.
Fig. 6 is a schematic structural diagram of a mobile frame according to the present invention.
Fig. 7 is a schematic front view of a mobile frame according to the present invention.
Fig. 8 is a schematic structural diagram of a clamping block according to the present invention.
Fig. 9 is another angular schematic view of the clamping block according to the present invention.
Fig. 10 is a schematic structural view of a rotating member according to the present invention.
In the figure: 1. a base; 2. a lifting body; 3. a lifting frame; 31. a screw rod; 32. a driving motor; 33. a slide hole; 34. a limit groove; 4. a clamp assembly; 41. a clamping seat; 411. a convex character groove; 412. a dovetail groove; 413. a limiting plate; 42. a moving rack; 43. a clamp seat; 44. a chuck; 441. a mounting groove; 45. clamping blocks; 451. a first clamping column; 452. a second clamping column; 453. a bar-shaped hole; 454. a shaft lever; 455. an avoidance groove; 46. a rotating member; 461. an arc-shaped hole; 47. a spring seat; 48. a spring; 49. an elastic component; 5. a rocking mechanism; 51. a screw block; 52. a carriage; 53. a limiting block; 54. a swing frame; 55. a slide bar; 56. a swing motor; 57. an eccentric wheel; 58. and (5) connecting a block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Examples
The invention relates to a tensile strength detection device for polyurethane foaming plastic, which comprises a base 1, wherein a lifting machine body 2 is arranged on the base 1, a lifting frame 3 is connected to the lifting machine body 2, and the lifting machine body 2 drives the lifting frame 3 to move up and down in a mode of driving a screw rod to drive by a motor; the base 1 and the lifting frame 3 are respectively connected with a clamp assembly 4 for clamping and fixing two ends of a plastic test piece.
As shown in fig. 2-3, the lifting frame 3 is connected with a horizontally arranged screw rod 31 and a driving motor 32 for driving the screw rod 31 to rotate, the driving motor 32 and the screw rod 31 are in gear transmission, the driving motor 32 is arranged on the lifting frame 3 through a motor frame, a sliding hole 33 which is arranged in parallel with the screw rod 31 is arranged on the lifting frame 3, a swinging mechanism 5 for driving the clamp assembly 4 to swing is connected in the sliding hole 33, the swinging mechanism 5 is fixedly connected with the clamp assembly 4, the swinging mechanism 5 comprises a sliding frame 52 with an inverted U-shaped structure, the sliding frame 52 is in sliding connection with the sliding hole 33, a limit groove 34 is arranged on the inner wall of the sliding hole 33, a limit block 53 which is in sliding connection with the limit groove 34 is arranged on the side surface of the sliding frame 52, the connection stability of the sliding frame 52 and the lifting frame 3 is ensured, a thread block 51 which is in threaded connection with the screw rod 31 is fixedly connected with the sliding frame 52, the sliding frame 52 is driven to move when the screw rod 31 rotates, thereby driving the clamp assembly 4 above to move, the stretching direction of the plastic test piece is changed, and the stretching effect of the plastic test piece is tested; and the swing frame 54 is rotationally connected to the carriage 52, the lower end of the swing frame 54 is fixedly connected with the clamp assembly 4 through a screw, the swing motor 56 is installed on the carriage 52, the eccentric wheel 57 is welded on the rotating shaft of the swing motor 56, the connecting block 58 is connected to the eccentric wheel 57, the connecting block 58 is of a cylindrical structure, a movable hole matched and connected with the connecting block 58 is formed in the eccentric wheel 57, the connecting block 58 can rotate and stretch out and draw back in the movable hole, the upper end of the swing frame 54 is fixedly connected with the sliding rod 55, the connecting block 58 is in sliding connection with the sliding rod 55, the swing motor 56 drives the eccentric wheel 57 to rotate, the connecting block 58 slides on the sliding rod 55 when the eccentric wheel 57 rotates, the swing frame 54 is driven to swing in a left-right reciprocating manner, further the plastic test piece is driven to swing in a reciprocating manner, the tensile resistance effect of the simulation place during the swing of the strip-shaped plastic in-service is improved, and the data accuracy of the tensile test is improved.
As shown in fig. 4-7, the clamp assembly 4 comprises a clamp seat 41, a dovetail groove 412 is arranged at the lower end of the clamp seat 41, a convex groove 411 is arranged above the dovetail groove 412, a movable frame 42 capable of moving up and down is connected in a sliding manner in the convex groove 411, the movable frame 42 is connected with the inner wall of the convex groove 411 in a sliding manner, an elastic assembly 49 is connected between the movable frame 42 and the top wall of the convex groove 411, and a handle is fixedly connected to the movable frame 42, so that the movable frame 42 can be moved manually; the elastic component 49 comprises a column body and a cylindrical spring, the column body is fixed on the clamping seat 41 through a nut, and a through hole matched with the column body is formed in the movable frame 42; the lower surface of the movable frame 42 is fixedly connected with a chuck seat 43 through a screw, the chuck seat 43 is disc-shaped, the lower surface of the chuck seat 43 is slidably connected with a pair of chucks 44 attached to the inner wall of the dovetail groove 412, the chucks 44 and the chuck seat 43 cannot be separated, the inner wall of the dovetail groove 412 is fixedly connected with limiting plates 413 for limiting the chucks 44, the limiting plates 413 are arranged on two sides of the chucks 44, the movement stability of the chucks 44 is guaranteed, a spring seat 47 is fixedly connected to the center of the lower surface of the chuck seat 43, a spring 48 is fixedly connected between the spring seat 47 and the chucks 44, the spring 48 applies elastic force to the chucks 44, so that the chucks 44 are tightly attached to the inner wall of the dovetail groove 412, when the movable frame 42 slides downwards, the interval between the dovetail grooves 412 is reduced, the two chucks 44 are close to each other, a plastic test piece is clamped and fixed, and when the plastic test piece is stretched, the plastic test piece drives the two chucks 44 to move further towards the tail end of the dovetail groove 412, the greater the tension force is, the pressure of the chucks 44 on the plastic test piece is greater, and the clamping effect is stronger; in a specific operation, the movable frame 42 is manually moved to drive the two chucks 44 to separate, then the plastic test piece is clamped between the two chucks 44, after the movable frame 42 is released, the movable frame 42 moves towards the tail end of the dovetail groove 412 under the elastic force of the elastic component 49, and the two chucks 44 are mutually close to each other to clamp the plastic test piece.
As shown in fig. 6-10, two clamping heads 44 are fixedly connected with clamping blocks 45 on opposite surfaces, the clamping blocks 45 are in an inverted L-shaped structure, a pair of first clamping columns 451 are symmetrically and fixedly connected to the surfaces of the clamping blocks 45, a movable second clamping column 452 is arranged between the two first clamping columns 451, a avoiding groove 455 matched with the second clamping column 452 is arranged on the surfaces of the clamping blocks 45, a strip-shaped hole 453 matched with the second clamping column 452 in a moving way is arranged on the clamping blocks 45, one end of the second clamping column 452 is in sliding connection with the strip-shaped hole 453, a shaft lever 454 is fixedly connected to the second clamping column 452 in a rotating way, a rotating piece 46 for driving the second clamping column 452 to move is rotationally connected to the clamping heads 44, an installation groove 441 matched with the rotating piece 46 is arranged on the rotating piece 46, an eccentric arc-shaped hole 461 matched with the shaft lever 454 in a sliding way can drive the second clamping column 452 to move along the strip-shaped hole 453 when the rotating piece 46 rotates, and the clamping blocks 45 are suitable for clamping and fixing a flat plastic test piece when the second clamping column 452 is in the same plane with the first clamping column 451; when the second clamping column 452 moves towards the inner side of the avoidance groove 455, the second clamping column 452 and the first clamping column 451 are positioned on different planes, the second clamping column 452 and the first clamping column 451 form an arc surface, and the clamping block 45 is suitable for clamping and fixing a round strip-shaped plastic test piece; so that the clamping block 45 can clamp flat and round plastic parts.
Preferably, the first clamping column 451 and the second clamping column 452 are in prismatic structures, so that the contact area between the clamping block 45 and the plastic test piece is increased; and the surfaces of the first clamping column 451 and the second clamping column 452 are respectively provided with a friction surface, and the friction surfaces are provided with a plurality of grooves, so that the friction force is increased, and the fixing effect of the clamping block 45 is improved.
Working principle: when the invention is used, the two ends of the plastic test piece are respectively clamped and fixed by the upper and lower clamp assemblies 4; then the lifting machine body 2 drives the lifting frame 3 to vertically lift, and the tensile resistance effect of the plastic test piece in the vertical direction is tested; meanwhile, the swing motor 56 can drive the upper clamp assembly 4 to swing back and forth to drive the plastic test piece to swing, and the tensile resistance effect of the plastic test piece when swinging is tested; when the tensile resistance effect on the deflection direction of the plastic test piece is required, the driving motor 32 drives the upper clamp assembly 4 to move to the designated position along the sliding hole 33, the lifting machine body 2 drives the lifting frame 3 to vertically lift, and the tensile resistance effect on the deflection direction of the plastic test piece is tested.
Finally, it should be noted that: in the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
The foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The tensile strength detection device for the polyurethane foam plastic is characterized by comprising a base (1), wherein a lifting machine body (2) is arranged on the base (1), and a lifting frame (3) is connected to the lifting machine body (2);
the base (1) and the lifting frame (3) are connected with clamp assemblies (4) for clamping and fixing two ends of a plastic test piece;
the lifting frame (3) is connected with a horizontally arranged screw rod (31) and a driving motor (32) for driving the screw rod (31) to rotate, a sliding hole (33) which is arranged in parallel with the screw rod (31) is formed in the lifting frame (3), a swinging mechanism (5) for driving the clamp assembly (4) to swing is connected in the sliding hole (33), and the swinging mechanism (5) is fixedly connected with the clamp assembly (4);
the swinging mechanism (5) comprises a sliding frame (52) with an inverted U-shaped structure, the sliding frame (52) is in sliding connection with the sliding hole (33), a threaded block (51) in threaded connection with the screw rod (31) is fixedly connected to the sliding frame (52), a swinging frame (54) is rotatably connected to the sliding frame (52), and the swinging frame (54) is fixedly connected with the clamp assembly (4);
the fixture assembly (4) comprises a clamping seat (41), a dovetail groove (412) is formed in the lower end of the clamping seat (41), a raised word groove (411) is formed above the dovetail groove (412), a movable frame (42) capable of moving up and down is connected in a sliding manner in the raised word groove (411), an elastic assembly (49) is connected between the movable frame (42) and the top wall of the raised word groove (411), a clamping head seat (43) is fixedly connected to the lower surface of the movable frame (42), and a pair of clamping heads (44) attached to the inner wall of the dovetail groove (412) are connected to the lower surface of the clamping head seat (43); the clamping head (44) is in sliding connection with the clamping head seat (43), a spring seat (47) is fixedly connected to the center of the lower surface of the clamping head seat (43), and a spring (48) is fixedly connected between the spring seat (47) and the clamping head (44);
the clamping blocks (45) are fixedly connected to opposite surfaces of the two clamping heads (44), the clamping blocks (45) are of an inverted L-shaped structure, a pair of first clamping columns (451) are symmetrically and fixedly connected to the surfaces of the clamping blocks (45), a movable second clamping column (452) is arranged between the two first clamping columns (451), and avoidance grooves (455) matched with the second clamping columns (452) are formed in the surfaces of the clamping blocks (45); be equipped with on clamp splice (45) with second clamp column (452) remove complex bar hole (453), fixedly connected with axostylus axostyle (454) on second clamp column (452), rotate on chuck (44) and be connected with be used for driving rotation piece (46) that second clamp column (452) removed, be equipped with on chuck (44) with rotation piece (46) installation complex mounting groove (441), be equipped with on rotation piece (46) with axostylus axostyle (454) sliding fit's eccentric arc hole (461).
2. The tensile strength detection device for polyurethane foam according to claim 1, wherein a swing motor (56) is installed on the carriage (52), an eccentric wheel (57) is fixedly connected to a rotating shaft of the swing motor (56), a connecting block (58) is connected to the eccentric wheel (57), a sliding rod (55) is fixedly connected to the swing frame (54), and the connecting block (58) is in sliding connection with the sliding rod (55).
3. The tensile strength detection device for polyurethane foam according to claim 2, wherein a limit groove (34) is formed in the inner wall of the slide hole (33), and a limit block (53) in sliding connection with the limit groove (34) is arranged on the side surface of the sliding frame (52).
4. A tensile strength testing apparatus for polyurethane foam as set forth in claim 3, wherein said first clamping column (451) and said second clamping column (452) are each of prismatic structure, and the surfaces of said first clamping column (451) and said second clamping column (452) are each provided with a friction surface.
5. The tensile strength detection device for polyurethane foam according to claim 4, wherein a limiting plate (413) for limiting the clamping head (44) is fixedly connected to the inner wall of the dovetail groove (412).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310477148.3A CN116202873B (en) | 2023-04-28 | 2023-04-28 | Tensile strength detection device for polyurethane foam plastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310477148.3A CN116202873B (en) | 2023-04-28 | 2023-04-28 | Tensile strength detection device for polyurethane foam plastics |
Publications (2)
| Publication Number | Publication Date |
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| CN116202873A CN116202873A (en) | 2023-06-02 |
| CN116202873B true CN116202873B (en) | 2023-07-18 |
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| CN202310477148.3A Active CN116202873B (en) | 2023-04-28 | 2023-04-28 | Tensile strength detection device for polyurethane foam plastics |
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| CN117007502B (en) * | 2023-09-28 | 2024-01-23 | 江苏德励达新材料股份有限公司 | Weather resistance detection device of polyurethane insulation board |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3149531B2 (en) * | 1992-05-29 | 2001-03-26 | 株式会社島津製作所 | Material testing machine |
| CN102607951A (en) * | 2012-03-08 | 2012-07-25 | 北京航空航天大学 | Double-head tenon joint tension test structure without additional bending moment |
| CN206192776U (en) * | 2016-11-16 | 2017-05-24 | 东莞市力控仪器科技有限公司 | Tensile testing machine |
| CN207268692U (en) * | 2017-06-12 | 2018-04-24 | 广东华声电器实业有限公司 | A kind of multifunction wire testing machine |
| CN109580347A (en) * | 2018-12-05 | 2019-04-05 | 蒋家林 | Device for testing tensile force is used in a kind of processing of rail traffic rubber component |
| CN209841562U (en) * | 2019-05-09 | 2019-12-24 | 青岛普光新能源有限公司 | Battery piece welding tension testing device |
| CN210690216U (en) * | 2019-09-30 | 2020-06-05 | 东莞市力雄仪器有限公司 | Wire swing testing machine |
| CN211401938U (en) * | 2019-11-13 | 2020-09-01 | 东莞市奥瑞博科智能设备科技有限公司 | Tension tester |
| CN211697273U (en) * | 2020-03-09 | 2020-10-16 | 内蒙古亿特铝业有限公司 | Liquid crystal display tensile testing machine |
| CN212844686U (en) * | 2020-09-30 | 2021-03-30 | 青岛永函包装机械有限公司 | Tension detector |
| CN112525691A (en) * | 2020-11-27 | 2021-03-19 | 浙江德航智能科技有限公司 | Compression and tension tester controlled by computer |
| CN216433788U (en) * | 2021-11-01 | 2022-05-03 | 芜湖湾流电子有限公司 | Tension testing device for plug power line |
| CN115452591A (en) * | 2022-10-09 | 2022-12-09 | 上海续途检测技术有限公司 | High-speed tensile tester in non-metallic material |
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