CN112665841A - Adjustable clamp bending fatigue testing device based on surrounding motion - Google Patents
Adjustable clamp bending fatigue testing device based on surrounding motion Download PDFInfo
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- CN112665841A CN112665841A CN202011499940.1A CN202011499940A CN112665841A CN 112665841 A CN112665841 A CN 112665841A CN 202011499940 A CN202011499940 A CN 202011499940A CN 112665841 A CN112665841 A CN 112665841A
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Abstract
The invention discloses an adjustable hoop bending fatigue testing device based on encircling movement, and relates to the field of hoop testing application. According to the invention, the circular reciprocating 8-shaped surrounding motion of the hoop testing component is realized by the opposite rotation of the adjacent chucks in the transmission module and the control of the umbrella-shaped swinging mechanism; the contact depth of the clamp test assembly and the resistance piece is controlled through the vertical driving module, the effect of adjusting the resistance is achieved, the flow resistance and the bending moment of friction force continuously received by the clamp test assembly in motion are changed, and the effect of performing all-dimensional and multi-angle bending fatigue test and measurement on a plurality of clamp test assemblies under the condition that the bending moment force is adjustable is achieved. The invention not only reduces the energy loss in the testing process, but also realizes the simulation of the complex working environment of the clamp assembly, improves the testing precision and the testing efficiency and has strong practicability.
Description
Technical Field
The invention relates to the field of hoop test application, in particular to an adjustable hoop bending fatigue test device based on encircling movement.
Background
Along with the rising of aircraft performance and pipeline design level in recent years, the requirement for the reliability of system pipeline connection clamp is also increasing day by day, thereby hasten the emergence of a plurality of clamp reliability test equipment.
At present, the conventional hoop bending fatigue testing method comprises the following steps: the clamp and its components are mounted on a fixture as shown in fig. 1, applying a minimum tightening torque, rigidly fixing one end of the conduit 07, and applying 80% of the rated bending torque to the other end tab 011. The maximum working pressure is reached in the joint, and the working medium is aviation kerosene. Ten million cycles of deflection were applied to the test assembly, one cycle of deflection comprising: the bending moment is applied downwards and then unloaded, and then the bending moment is applied upwards and then unloaded. The cycle rate is 60-120 cycles per minute. The test assembly was rotated 90 ° every 25000 cycles, where it was ensured that the fitting was not loosened or tightened. After the test, the clamp is disassembled and visually checked, and the clamp cannot be leaked, deformed and damaged.
However, the conventional clamp testing device fixes one end of the clamp assembly, and loads a bending moment force reciprocating up and down on the other end of the clamp assembly, so that not only is energy consumption increased sharply, but also the bending moment direction is fixed, the difference from the actual stress environment of the clamp site is large, and the testing efficiency and the testing precision are low. Therefore, it is an urgent need to solve the above-mentioned problems by providing a novel clamp clamping force testing device.
Disclosure of Invention
The invention aims to provide an adjustable hoop bending fatigue testing device based on encircling movement, which aims to solve the problems in the prior art; this adjustable clamp bending fatigue testing arrangement not only can order about the clamp test assembly and do "8" word and encircle the motion, can change the bending moment of the flow resistance that the clamp test assembly received and frictional force in the motion moreover, finally realizes the bending fatigue test of the different bending moments of clamp test assembly multi-angle.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides an adjustable hoop bending fatigue testing device based on encircling movement, which mainly comprises:
the transmission module comprises a chuck set and a clamping sleeve arranged on the periphery of the chuck set; the chuck group comprises at least two chucks which are adjacently arranged, and the periphery of each chuck is provided with at least one clamping groove; the hoop testing component is placed in the clamping groove to rotate along with the chuck;
the guide module is arranged between two adjacent chucks and used for transferring the hoop test assembly from one chuck to the other chuck in an engagement manner;
the rotary driving module is connected with the chuck set and used for driving the chucks to rotate, and two adjacent chucks rotate reversely, so that the hoop testing assembly can move around;
the experiment module comprises a resistance piece, the resistance piece is in contact with one end of the hoop testing component and is used for setting resistance to the surrounding movement of the hoop testing component;
the vertical driving module is connected with the other end of the clamp testing component and used for regulating and controlling the contact depth of the clamp testing component and the resistance piece.
Optionally, the adjustable hoop bending fatigue testing device further comprises a first base, and the rotary driving module, the transmission module and/or the guiding module are/is mounted on the first base.
Optionally, the vertical driving module is a hydraulic loading mechanism.
Optionally, the hydraulic loading mechanism includes a second base, a frame disposed on the second base, and a hydraulic cylinder disposed at the top of the frame; the hydraulic cylinder is connected with the transmission module through a telescopic rod, and the telescopic rod is hinged with the transmission module.
Optionally, a guide mechanism is arranged between the transmission module and the frame, the guide mechanism includes a slide rail and a slide block slidably mounted on the slide rail, the slide rail is mounted on the frame through a support block, and the slide block is mounted on the transmission module.
Optionally, the rotary driving module includes a motor, a driving gear and a driven gear set engaged with the driving gear, and the motor is connected with the driving gear through a connecting shaft; and each driven gear in the driving gear and the driven gear set is respectively connected with one chuck.
Optionally, the periphery of the chuck is provided with at least two clamping grooves at intervals.
Optionally, the guide module comprises a bracket and an umbrella part hinged at the bottom on the bracket; the top of the umbrella handle of the umbrella-shaped part is also connected with the bottom of the bracket through a spring.
Optionally, the resistance member includes an experiment tank and a viscous substance disposed in the experiment tank.
Optionally, the clamp test assembly includes a first conduit, a second conduit, and a clamp connecting the two conduits.
Compared with the prior art, the invention has the following technical effects:
the adjustable hoop bending fatigue testing device based on the encircling movement is reasonable in structural arrangement, and the 8-shaped encircling movement of the hoop testing assembly in a cyclic reciprocating manner is realized through the control of opposite rotation of adjacent chucks in a transmission module and the matching of an umbrella-shaped swinging mechanism; the contact depth of the clamp test assembly and the resistance piece is controlled through the vertical driving module, the effect of adjusting the resistance is achieved, the flow resistance and the bending moment of friction force continuously received by the clamp test assembly in motion are changed, and the effect of performing all-dimensional and multi-angle bending fatigue test and measurement on a plurality of clamp test assemblies under the condition that the bending moment force is adjustable is achieved. The adjustable hoop bending fatigue testing device is high in reliability, not only can adjust the bending moment force borne by the hoop testing assembly, but also can continuously change the direction of the received bending moment, so that the energy loss in the testing process is reduced, the purpose of simulating the complex working environment of the hoop assembly is realized, the testing precision and the testing efficiency are both greatly improved, the practicability is high, and a foundation is laid for expanding the application field of hoop testing.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a test assembly in a bending fatigue test of a conventional clamp;
FIG. 2 is a schematic structural diagram of an adjustable hoop bending fatigue testing device according to the present invention;
FIG. 3 is a schematic structural diagram of a vertical loading module according to the present invention;
FIG. 4 is a schematic structural diagram of a transmission module of the present invention;
FIG. 5 is a schematic diagram of a ferrule removing structure of the transmission module of the present invention;
FIG. 6 is a schematic structural view of a guide module according to the present invention;
FIG. 7 is a schematic view of the swinging motion of the guide module of the present invention;
FIG. 8 is a schematic view of the motion trajectory of the clip test assembly of the present invention;
FIG. 9 is a schematic view of the clip test assembly of the present invention;
wherein the reference numerals are:
01-a clamp; 02. 03-a linker; 04-a sealing ring; 05-filler neck; 06-blocking; 07. 08-a conduit; 09. 010-plugging cover; 011-ear;
1-an experimental pond; 101-a viscous substance; 2-cutting the ferrule; 3-a drive gear; 4-a chuck; 5-a driven gear; 6-connecting shaft; 7-bearing fixing seat; 8, a motor; 9-a loading link; 10-a connecting rod; 11-a telescopic rod; 12-a hydraulic cylinder; 13-a frame; 14-a support plate; 15-a slide block; 16-a slide rail; 17-a support block; 18-a second base; 19-a scaffold; 20-a first base; 21-a spring; 22-an umbrella-shaped piece; 23-blocking; 24-a first conduit; 25-a clamp; 26-a second conduit; 27-a collar; 28-a clip test assembly; 29-blocking cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide an adjustable hoop bending fatigue testing device based on encircling movement, which not only can drive a hoop testing component to do circularly reciprocating 8-shaped encircling movement, but also can change the bending moment of flowing resistance and friction force applied to the hoop testing component in movement, and finally realizes the bending fatigue resistance testing of the hoop testing component under different bending moments from multiple angles.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The first embodiment is as follows:
as shown in fig. 2 to 9, the present embodiment provides an adjustable hoop bending fatigue testing apparatus based on a looping movement, and the apparatus mainly includes a vertical driving module, a rotational driving module, a guiding module, an experiment module, a transmission module, and a hoop testing assembly 28. The vertical driving module drives the hoop test assembly 28 to move up and down so as to adjust the depth of one end of the hoop test assembly 28 inserted into the resistance material in the experiment pool 1, and further adjust the resistance of the hoop test assembly 28. The rotation driving module is connected with the transmission module and provides rotation power for the transmission module, and the transmission module can drive the hoop testing component 28 to realize reciprocating circular motion around the '8'. The resistive material is preferably a viscous material 101, such as a viscous liquid or rubber.
In this embodiment, as shown in fig. 4-5, the rotation driving module includes a motor 8, a connecting shaft 6, a driving gear 3 and a driven gear 5, the driving gear 3 is connected to an output end of the motor 8 through the connecting shaft 6, and the driven gear 5 is engaged with the driving gear 3; install bearing fixing base 7 on the first base 20, the back shaft of connecting axle 6 and driven gear 5 is all installed in bearing fixing base 7 to ensure the normal rotation of gear train. In this embodiment, the transmission module includes two adjacent chucks 4, and the chuck 4 is externally sleeved with a cutting sleeve 2; the driven gear 5 and the driving gear 3 are coaxially connected to a chuck 4, respectively. When the motor 8 works, the connecting shaft 6 connected with the motor 8 rotates, the driving gear 3 and the chuck 4 connected with the connecting shaft 6 rotate along the clockwise direction, and the driven gear 5 meshed with the driving gear 3 rotates along the opposite direction, so that the other coaxial chuck 4 is driven to rotate along the opposite direction; the collar test assembly 28, with the chuck 4 secured to the ferrule 2, rotates with the orientation of the chuck 4.
In this embodiment, as shown in fig. 6 to 7, the guiding module is an umbrella-shaped swing mechanism, and includes an umbrella-shaped member 22, a spring 21, and a bracket 19, and the bracket 19 is fixed on the first base 20 and located between the two chucks 4. Wherein, the umbrella-shaped member 22 is inverted, the center of the cross bar thereof is hinged with the bracket 19, the top end of the umbrella handle thereof is connected with the bracket 19 through the spring 21, and when the spring 21 is in a natural state, the umbrella-shaped member 22 is in a state that one end is tilted and the other end is pressed down to be close to the bracket 10. As shown in fig. 6-8, when the clip testing assembly 28 rotates with the chuck 4 to the contact point of the two chucks, it meets the guiding module, and is blocked by the umbrella stem of the umbrella member 22 in the guiding module, and is forced to rotate towards the other chuck 4, and then the tilting end of the umbrella member 22 is pressed down and the pressing end is tilted up, and the spring 21 changes from the natural state to the stretched state and then to the natural state. The subsequent clip test assembly 28 again encounters the guide module and is forced back into the original chuck 4, rotating in the opposite direction and the umbrella member 22 returns to its original condition. In summary, after the hoop test component 28 rotates with the chuck 4 for one circle, the rotation track is changed, and the cycle is repeated, so that an 8-shaped surrounding track of the hoop test component 28 can be formed; in the process, the umbrella member 22 swings left and right with the change of the rotation locus of the clip test assembly 28.
In this embodiment, the guiding module mainly plays a role in connection transition, the chuck 4 is provided with a clamping groove, when the hoop test component 28 in a certain clamping groove on the chuck 4 triggers the umbrella-shaped component 22, the umbrella-shaped component 22 swings, and a certain empty clamping groove on another chuck 4 just rotates over the umbrella-shaped component 22 at the moment of finishing swinging and just receives the jumped hoop test component 28. Can set up a plurality of draw-in grooves simultaneously on the chuck 4, interval distribution can be so that drive module carries out accurate test to multiunit clamp test assembly 28 simultaneously.
In this embodiment, as shown in fig. 2, the transmission module is arranged longitudinally, the bottom end of the hoop test assembly 28 extends into the experimental tank 1, and the vertical driving module is disposed right above the transmission module. The vertical driving module comprises a hydraulic cylinder 12, a frame 13, a second base 18, an expansion link 11, a support plate 14, a connecting rod 10 and a loading connecting rod 9, the support plate 14 and the loading connecting rod 9 are respectively and fixedly connected to the top end and the bottom end of the connecting rod 10, and the expansion link 11 is hinged to the support plate 14. When the hydraulic cylinder 12 works, the connected telescopic rod 11 can be driven to move up and down, so that the rotary driving module and the guiding module are driven to move up and down, the depth of the bottom end of the hoop testing component 28 inserted into the viscous substance 101 is changed, and the bending moment of the resistance substance to the hoop testing component 28 is adjusted.
In this embodiment, as shown in fig. 2, a guiding mechanism is further disposed on the transmission module. The guide mechanism comprises a slider 15, a slide rail 16 and a support block 17. The slide rail 16 is longitudinally arranged on the side wall of the frame 13 through a supporting block 17, the slide block 15 is fixedly connected with the support plate 14, and the slide block 15 is arranged on the slide rail 16 in a sliding manner. When the vertical driving module drives the rotary driving module and the guide module to move up and down, the guide mechanism plays a role in guiding and prevents the longitudinal loading force from deviating.
In this embodiment, the clip test assembly 28 includes a plug-23, a conduit-24, a clip-25, and a conduit ii-26, as shown in fig. 9. The guide pipe II-26 is provided with a clamping ring-27 and a blocking cover-29. In this embodiment, as shown in FIG. 8, the clip testing assembly 28 includes a first conduit 24, a clip 25, and a second conduit 26; one end of the first conduit 24 is provided with a plug 23 and one end of the second conduit 26 is provided with a collar 27 and a plug 29. A clamp 25 is used to connect the other end of the first conduit 24 with the other end of the second conduit 26. The collar 27 and cap 29 may act as a stop when the clip test assembly 28 is assembled on the chuck 4.
Fig. 1 shows a structural arrangement of a pipe assembly of a hoop in a bending fatigue testing method of a prior art hoop, which includes a hoop 01, a pipe 07 and a pipe 08, wherein a joint 02 and a joint 03 are respectively arranged at a connecting end of the pipe 07 and the pipe 08, and the hoop 01 is installed at a butt joint of the joint 02 and the joint 03 to connect the two pipes. Wherein, a sealing ring 04 is also arranged between the hoop 01 and the conduit; the outer end of the conduit 07 is also sequentially provided with a blocking cover 09, a filler neck 05 and a plug 06, and the outer end of the conduit 08 is also sequentially provided with a blocking cover 010 and a lug 011. In this embodiment, the connection structure of the clamp 01 and the conduits 07 and 08 shown in fig. 1 can also be adopted for the clamp testing assembly 28, and the rest of the structure shown in fig. 1 can be selected and modified according to specific testing requirements, and will not be described in detail herein.
Therefore, the adjustable hoop bending fatigue testing device based on the encircling movement provided by the embodiment controls the reverse rotation of the two adjacent chucks through the transmission module, realizes that the hoop testing component does the circular reciprocating '8' -shaped encircling movement between the two adjacent chucks through the umbrella-shaped swing mechanism, one end of the hoop testing component is inserted into the resistance piece to generate bending moment under the driving of the vertical driving module, adjusts the magnitude of the resistance bending moment in real time, and realizes the effect of carrying out the all-dimensional and multi-angle bending fatigue testing on the plurality of hoop testing components under the condition that the magnitude of the bending moment force is adjustable. The clamp testing assembly can greatly reduce the required energy, and the direction and the size of the bending moment borne by the clamp testing assembly can be constantly changed along with the movement, so that the effect of simulating the complex working environment of the clamp assembly is realized, the testing reliability is improved, the application field of the clamp testing is expanded, and the practicability is high.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. The utility model provides an adjustable clamp bending fatigue testing arrangement based on encircleing motion which characterized in that includes:
the transmission module comprises a chuck set and a clamping sleeve arranged on the periphery of the chuck set; the chuck group comprises at least two chucks which are adjacently arranged, and the periphery of each chuck is provided with at least one clamping groove; the hoop testing component is placed in the clamping groove to rotate along with the chuck;
the guide module is arranged between two adjacent chucks and used for transferring the hoop test assembly from one chuck to the other chuck in an engagement manner;
the rotary driving module is connected with the chuck set and used for driving the chucks to rotate, and two adjacent chucks rotate reversely, so that the hoop testing assembly can move around;
the experiment module comprises a resistance piece, the resistance piece is in contact with one end of the hoop testing component and is used for setting resistance to the surrounding movement of the hoop testing component;
the vertical driving module is connected with the other end of the clamp testing component and used for regulating and controlling the contact depth of the clamp testing component and the resistance piece.
2. The looping-motion-based adjustable clamp bending fatigue testing device of claim 1, further comprising a first base on which the rotational drive module, the transmission module, and/or the guide module are mounted.
3. The looping movement based adjustable clamp bending fatigue testing device according to claim 1, wherein the vertical driving module is a hydraulic loading mechanism.
4. The looping movement-based adjustable clamp bending fatigue testing device according to claim 3, wherein the hydraulic loading mechanism comprises a second base, a frame arranged on the second base, and a hydraulic cylinder arranged at the top of the frame; the hydraulic cylinder is connected with the transmission module through a telescopic rod, and the telescopic rod is hinged with the transmission module.
5. The adjustable hoop bending fatigue testing device based on encircling movement of claim 4, wherein a guiding mechanism is arranged between the transmission module and the rack, the guiding mechanism comprises a slide rail and a slide block slidably mounted on the slide rail, the slide rail is mounted on the rack through a supporting block, and the slide block is mounted on the transmission module.
6. The adjustable hoop bending fatigue testing device based on encircling movement of claim 1, wherein the rotation driving module comprises a motor, a driving gear and a driven gear set meshed with the driving gear, and the motor is connected with the driving gear through a connecting shaft; and each driven gear in the driving gear and the driven gear set is respectively connected with one chuck.
7. The adjustable hoop bending fatigue testing device based on encircling movement of claim 1, wherein the periphery of the chuck is provided with at least two clamping grooves at intervals.
8. The wrap-around motion based adjustable clamp bending fatigue testing apparatus of claim 1, wherein the guiding module comprises a bracket and an umbrella with a bottom hinged to the bracket; the top of the umbrella handle of the umbrella-shaped part is also connected with the bottom of the bracket through a spring.
9. The wrap-around motion based adjustable clamp bending fatigue testing apparatus of claim 1, wherein the resistance member comprises a test cell and a viscous substance disposed within the test cell.
10. The wrap motion based adjustable clamp bending fatigue testing apparatus of claim 1, wherein the clamp testing assembly comprises a first conduit, a second conduit, and a clamp connecting the two conduits.
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| CN202011499940.1A CN112665841B (en) | 2020-12-18 | 2020-12-18 | Adjustable hoop bending fatigue testing device based on surrounding motion |
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| CN202011499940.1A CN112665841B (en) | 2020-12-18 | 2020-12-18 | Adjustable hoop bending fatigue testing device based on surrounding motion |
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| CN112665841B CN112665841B (en) | 2022-11-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113579258A (en) * | 2021-08-04 | 2021-11-02 | 深圳职业技术学院 | Multi-channel additive powder box and additive method |
| CN117554210A (en) * | 2024-01-09 | 2024-02-13 | 江苏爱索新材料科技有限公司 | Bending fatigue testing machine for testing composite pipe |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010050886A1 (en) * | 1996-11-13 | 2001-12-13 | Clarion Co., Ltd. | Disk changer device |
| CN204903323U (en) * | 2015-08-12 | 2015-12-23 | 上海微创医疗器械（集团）有限公司 | High all flexural fatigue capability test equipment |
| CN105758733A (en) * | 2016-04-06 | 2016-07-13 | 吉林大学 | Flexural fatigue mode adjustable tester for testing mechanical properties of materials, and testing method thereof |
| CN205538496U (en) * | 2016-04-06 | 2016-08-31 | 吉林大学 | Mechanical properties of materials tester of adjustable flexural fatigue mode |
| CN206208670U (en) * | 2016-11-22 | 2017-05-31 | 河海大学 | A kind of sustainable bending resistance loading device that various moments of flexure are provided |
| CN106959211A (en) * | 2017-03-15 | 2017-07-18 | 清华大学 | The fatigue test device and its method of testing of a kind of gear engagement |
| CN210571779U (en) * | 2019-08-12 | 2020-05-19 | 湖北万测试验设备有限公司 | Rotary bending fatigue test assembly and rotary bending fatigue test device |
-
2020
- 2020-12-18 CN CN202011499940.1A patent/CN112665841B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010050886A1 (en) * | 1996-11-13 | 2001-12-13 | Clarion Co., Ltd. | Disk changer device |
| CN204903323U (en) * | 2015-08-12 | 2015-12-23 | 上海微创医疗器械（集团）有限公司 | High all flexural fatigue capability test equipment |
| CN105758733A (en) * | 2016-04-06 | 2016-07-13 | 吉林大学 | Flexural fatigue mode adjustable tester for testing mechanical properties of materials, and testing method thereof |
| CN205538496U (en) * | 2016-04-06 | 2016-08-31 | 吉林大学 | Mechanical properties of materials tester of adjustable flexural fatigue mode |
| CN206208670U (en) * | 2016-11-22 | 2017-05-31 | 河海大学 | A kind of sustainable bending resistance loading device that various moments of flexure are provided |
| CN106959211A (en) * | 2017-03-15 | 2017-07-18 | 清华大学 | The fatigue test device and its method of testing of a kind of gear engagement |
| CN210571779U (en) * | 2019-08-12 | 2020-05-19 | 湖北万测试验设备有限公司 | Rotary bending fatigue test assembly and rotary bending fatigue test device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113579258A (en) * | 2021-08-04 | 2021-11-02 | 深圳职业技术学院 | Multi-channel additive powder box and additive method |
| CN117554210A (en) * | 2024-01-09 | 2024-02-13 | 江苏爱索新材料科技有限公司 | Bending fatigue testing machine for testing composite pipe |
| CN117554210B (en) * | 2024-01-09 | 2024-04-16 | 江苏爱索新材料科技有限公司 | Bending fatigue testing machine for testing composite pipe |
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