Horizontal tension tester

Abstract

The utility model discloses a horizontal tension testing machine, and belongs to the technical field of tension testing devices. The testing machine comprises a main machine frame, a sample mounting assembly, an oil cylinder end assembly and a movable end assembly, wherein the main machine frame comprises a guide rail and supporting legs; the oil cylinder end assembly and the moving end assembly are installed on the guide rail. One end of the sample is connected with the oil cylinder end assembly through the sample mounting assembly, and the other end is connected with the moving end assembly; the oil cylinder end assembly comprises a force value sensor and a displacement sensor; the mobile end assembly comprises an angle sensor; the moving end assembly comprises a motor and a moving cross beam. One end of the sample is connected with the oil cylinder end assembly and the other end is connected with the moving end assembly through the sample mounting assembly, so that a tension test of the sample is performed; a force value sensor, a displacement sensor and an angle sensor are arranged to measure changes of a force value, displacement and an angle; by arranging the movable cross beam and utilizing the static pressure supporting principle, the situation that the next step of test cannot be carried out due to passive rotation of the sample is avoided.

Description

Technical Field

[0001] The present application relates to a horizontal tensile testing machine, which belongs to the technical field of testing devices for special equipment such as marine hoses, oil pipelines, ropes, chains, etc. Background Art

[0002] Tensile testing machine, also known as universal material testing machine, is suitable for various physical and mechanical property tests of plastic plates, pipes, special-shaped materials, plastic films, rubber, wires and cables, steel, glass fiber and other materials for material development. Most conventional tensile testing machines on the market adopt a vertical structure. When conducting tensile tests on special and long products, the testing machine body is too high and the stability is poor during operation. At the same time, conventional vertical testing machines are not easy to carry, which reduces the practicality of the testing machine.

[0003] The horizontal tensile testing machine is also known as the electro-hydraulic servo horizontal tensile testing machine. This testing machine is mainly used for tensile testing of long specimens. It is mainly used for tensile performance testing of various metal components, steel cables, chains, anchor chains, lifting belts, cables, separation plates, etc., as well as special tests of some products.

[0004] However, during the tensile test of the existing horizontal tensile testing machine, the specimen itself will produce passive rotation, which makes it impossible to carry out the next step of the test and affects the normal progress of the test. Utility Model Content

[0005] In order to solve the above problems, the present application proposes a horizontal tensile testing machine, which performs a tensile test on the sample by setting a cylinder end assembly, a mobile end assembly and a sample mounting assembly, and connecting one end of the sample to the cylinder end assembly and the other end to the mobile end assembly through the sample mounting assembly; by setting a force sensor, a displacement sensor and an angle sensor, the changes in force, displacement and angle are measured; by setting a movable crossbeam and utilizing the principle of static pressure support, the situation in which the next test step cannot be performed due to the passive rotation of the sample is avoided.

[0006] According to one aspect of the present application, a horizontal tensile testing machine is provided, comprising a main frame, a specimen mounting assembly, a cylinder end assembly and a mobile end assembly, wherein the main frame comprises a guide rail and a supporting leg; the cylinder end assembly and the mobile end assembly are mounted on the guide rail; the specimen is connected to the cylinder end assembly at one end and to the mobile end assembly at the other end through the specimen mounting assembly; the cylinder end assembly comprises a force sensor and a displacement sensor to measure changes in force and displacement; the mobile end assembly comprises an angle sensor to measure angle changes; the mobile end assembly comprises a motor and a moving beam, wherein the moving beam comprises a piston rod, a piston head, a second oil cylinder, a cylinder cover and a pressure pad, and the pressure pad is arranged on both sides of the piston head.

[0007] Optionally, the cylinder end assembly also includes a reaction beam, a first cylinder, a cylinder beam and a telescopic beam. The force sensor is arranged between the reaction beam and the first cylinder to measure the change in force; the displacement sensor is arranged at the end of the reaction beam away from the sample to measure the change in displacement; the cylinder beam is connected to the first cylinder, and the telescopic beam is connected to the sample mounting assembly through a pull head connector.

[0008] Optionally, a gap of 5 mm is provided between the piston head and the pressure pad, and the gap is filled with pressure oil so that the piston rod is always in a liquid lubrication state when working.

[0009] Optionally, a plurality of lifting devices are provided inside the main frame to support the sample and reduce the influence of the sample's own weight on the test result.

[0010] Optionally, the specimen mounting assembly includes a pull head assembly, a fixture connector, a bearing assembly and a flange connector, the pull head assembly includes a pull head and a pull head latch, the telescopic beam is connected to the pull head via the pull head connector; the pull head latch connects the pull head to the fixture connector, and the flange connector is connected to the specimen.

[0011] Optionally, the bearing assembly includes an upper bearing, a lower bearing, a first locking member and a second locking member, and the upper bearing and the lower bearing are fastened together by bolts; the first locking member and the second locking member are arranged between the upper bearing and the lower bearing; the second locking member is connected to the clamp connecting member, and the first locking member is connected to the flange connecting member.

[0012] Optionally, a first through hole is provided on the upper buckle bushing to serve as a perspective window for observing the working conditions of the first locking member and the second locking member inside the bearing bushing assembly; a second through hole is provided on the lower buckle bushing to facilitate the falling of iron filings.

[0013] Optionally, a water collecting component is included, which includes a water collecting trough and a water collecting box. The water collecting trough is arranged below the main frame to receive the water generated by the blasting during the test; the water collecting box is arranged at both ends of the water collecting trough, and a drainage pipe is provided on the water collecting box.

[0014] Optionally, a support member is provided below the bearing assembly.

[0015] Optionally, a protective net is provided above the host frame.

[0016] The beneficial effects of this application include but are not limited to:

[0017] 1. The horizontal tensile testing machine provided in the present application is provided with a cylinder end assembly, a mobile end assembly and a sample mounting assembly. Through the sample mounting assembly, one end of the sample is connected to the cylinder end assembly and the other end is connected to the mobile end assembly to perform a tensile test on the sample; a force sensor, a displacement sensor and an angle sensor are provided to measure changes in force, displacement and angle; a movable crossbeam is provided and the principle of static pressure support is utilized to avoid the situation where the next test step cannot be performed due to the passive rotation of the sample.

[0018] 2. The horizontal tensile testing machine provided in the present application has a movable crossbeam, and a 5mm gap is provided between the piston head and the pressure pad. The gap is filled with pressure oil so that the piston rod is always in a liquid lubrication state when working. The passive rotation of the sample drives the piston rod to produce axial movement. Due to the setting of the gap and the pressure oil, the impact of the piston rod on the oil cylinder is reduced. In addition, the piston rod is always in a liquid lubrication state when working. On the one hand, it will not wear during normal use, and the accuracy is maintained well, which can extend the service life; on the other hand, the piston rod works surrounded by pressure oil, with high movement accuracy, large oil film stiffness, good damping performance, and the effect of suppressing oil film vibration at high speed.

[0019] 3. The horizontal tensile testing machine provided in this application supports the sample by providing a number of lifting devices, thereby preventing the sample from sagging and bending naturally due to being too large and too heavy, which may affect the measurement of the final test data or cause inaccurate accuracy, thereby ensuring the accuracy of the measured data.

[0020] 4. The horizontal tensile testing machine provided in the present application, the upper buckle bearing and the lower buckle bearing are fastened together by bolts, the first locking member and the second locking member are arranged between the upper buckle bearing and the lower buckle bearing; the second locking member is connected to the clamp connecting member, and the first locking member is connected to the flange connecting member. During the tensile test, the connecting member, the first locking member and the second locking member will expand due to heat, causing a certain displacement in the axial direction, and the bearing assembly allows it to have a wider degree of freedom in the axial direction; a first through hole is provided on the upper buckle bearing to serve as a perspective window to observe the working conditions of the first locking member and the second locking member inside the bearing assembly; a second through hole is provided on the lower buckle bearing to facilitate the falling of iron filings; a support member is provided under the bearing assembly to support the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0022] Figure 1 It is a three-dimensional structural schematic diagram of a horizontal tensile testing machine involved in an embodiment of the present application;

[0023] Figure 2It is a schematic diagram of the three-dimensional structure of the horizontal tensile testing machine involved in the embodiment of the present application from another angle;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the horizontal tensile testing machine (without a protective net) involved in an embodiment of the present application from another angle;

[0025] Figure 4 It is a schematic diagram of the cross-sectional structure of a horizontal tensile testing machine involved in an embodiment of the present application;

[0026] Figure 5 This is a schematic cross-sectional view of a movable beam involved in an embodiment of the present application;

[0027] Figure 6 This is a partial enlarged view of part A involved in the embodiment of the present application;

[0028] Figure 7 It is a partial enlarged view of part B involved in the embodiment of the present application;

[0029] Figure 8 It is a cross-sectional schematic diagram of the bearing assembly involved in the embodiment of the present application.

[0030] List of parts and reference numerals:

[0031] 1. Guide rail; 2. Support leg; 3. Force sensor; 4. Displacement sensor; 5. Angle sensor; 6. Reaction beam; 7. First oil cylinder; 8. Oil cylinder beam; 9. Telescopic beam; 10. Moving beam; 11. Piston rod; 12. Piston head; 13. Second oil cylinder; 14. Cylinder head; 15. Pressure pad; 16. Gap; 17. Lifting device; 18. Pull head; 19. Pull head latch; 20. Pull head connector; 21. Clamp connector; 22. Flange connector; 23. Upper buckle tile; 24. First locking piece; 25. Second locking piece; 26. First through hole; 27. Water collecting trough; 28. Water collecting box; 29. ​​Protective net; 30. Reinforcement rib; 31. Support member; 32. Lower buckle tile; 33. Second through hole. DETAILED DESCRIPTION

[0032] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0033] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0035] In addition, in the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0039] refer to Figure 1-Figure 8The embodiment of the present application discloses a horizontal tensile testing machine, including a main frame, a sample mounting assembly, a cylinder end assembly and a mobile end assembly, the main frame including a guide rail 1 and a support leg 2; the cylinder end assembly and the mobile end assembly are installed on the guide rail 1; the sample is connected to the cylinder end assembly at one end of the sample mounting assembly and to the mobile end assembly at the other end; the cylinder end assembly includes a force sensor 3 and a displacement sensor 4 to measure changes in force and displacement; the mobile end assembly includes an angle sensor 5 to measure angle changes; the mobile end assembly includes a motor and a moving beam 10, the moving beam 10 includes a piston rod 11, a piston head 12, a second oil cylinder 13, a cylinder head 14 and a pressure pad 15, and the pressure pad 15 is arranged on both sides of the piston head 12.

[0040] Specifically, by setting a cylinder end assembly, a mobile end assembly and a sample mounting assembly, one end of the sample is connected to the cylinder end assembly and the other end is connected to the mobile end assembly through the sample mounting assembly to perform a tensile test on the sample; by setting a force sensor 3, a displacement sensor 4, and an angle sensor 5, changes in force, displacement and angle are measured; by setting a movable crossbeam 10 and utilizing the principle of static pressure support, the situation in which the next test cannot be performed due to the passive rotation of the sample is avoided.

[0041] As a specific implementation, a plurality of reinforcing ribs 30 are provided between adjacent guide rails 1 and are fastened to the guide rails 1 by bolts to reduce the adverse effects of the lateral force generated in the tensile test and to support the 15000KN tensile testing machine.

[0042] As an embodiment, the cylinder end assembly also includes a reaction beam 6, a first cylinder 7, a cylinder beam 8 and a telescopic beam 9. The force sensor 3 is arranged between the reaction beam 6 and the first cylinder 7 to measure the change in force; the displacement sensor 4 is arranged at the end of the reaction beam 6 away from the sample to measure the change in displacement; the cylinder beam 8 is connected to the first cylinder 7, and the telescopic beam 9 is connected to the sample mounting assembly through the pull head connector 20.

[0043] Specifically, the telescopic crossbeam 9 is adjusted by the first oil cylinder 7 to adjust the sample space to meet the requirements of the sample.

[0044] As an implementation mode, a gap 16 of 5 mm is provided between the piston head 12 and the pressure pad 15, and the gap 16 is filled with pressure oil so that the piston rod 11 is always in a liquid lubrication state when working.

[0045] Specifically, the gap 16 is filled with pressurized oil so that the piston rod 11 is always in a liquid lubrication state when working. The passive rotation of the sample drives the piston rod 11 to produce axial movement. Due to the setting of the gap 16 and the pressurized oil, the impact of the piston rod 11 on the oil cylinder is reduced. In addition, the piston rod 11 is always in a liquid lubrication state when working. On the one hand, it will not wear during normal use, the accuracy is maintained well, and the service life can be extended; on the other hand, the piston rod 11 works surrounded by pressurized oil, with high movement accuracy, large oil film stiffness, good damping performance, and the effect of suppressing oil film vibration at high speed.

[0046] Specifically, the second oil cylinder 13 and the cylinder head 14 are respectively provided with pressure oil injection holes to facilitate the injection of pressure oil into the gap 16 .

[0047] As an implementation mode, a plurality of lifting devices 17 are provided inside the main frame to support the sample and reduce the influence of the sample's own weight on the test result.

[0048] Specifically, the present application does not make specific limitations on the number of lifting devices 17 and the connection method between the lifting devices 17 and the main frame, and those skilled in the art can make choices based on actual conditions.

[0049] Specifically, the lifting device 17 is a commercially available worm gear lifting device with a motor, and the worm gear can adjust the height of the device.

[0050] As an embodiment, the sample installation assembly includes a pull head assembly, a fixture connector 21, a bearing assembly and a flange connector 22. The pull head assembly includes a pull head 18 and a pull head pin 19. The telescopic beam 9 is connected to the pull head 18 through the pull head connector 20; the pull head pin 19 connects the pull head 18 to the fixture connector 21, and the flange connector 22 is connected to the sample.

[0051] Specifically, the specimen installation assembly connects the specimen to the moving end assembly and the specimen to the cylinder end assembly.

[0052] As an embodiment, the bearing assembly includes an upper buckle bearing 23, a lower buckle bearing 32, a first locking member 24 and a second locking member 25, and the upper buckle bearing 23 and the lower buckle bearing 32 are fastened together by bolts; the first locking member 24 and the second locking member 25 are arranged between the upper buckle bearing 23 and the lower buckle bearing 32; the second locking member 25 is connected to the clamp connector 21, and the first locking member 24 is connected to the flange connector 22.

[0053] Specifically, the upper buckle washer 23 and the lower buckle washer 32 are fastened together by bolts, and the first locking member 24 and the second locking member 25 are arranged between the upper buckle washer 23 and the lower buckle washer 32; the second locking member 25 is connected to the clamp connector 21, and the first locking member 24 is connected to the flange connector 22. During the tensile test, the connector, the first locking member 24 and the second locking member 25 will expand due to heat, causing a certain displacement in the axial direction, and the bearing assembly allows it to have a wider degree of freedom in the axial direction.

[0054] As an implementation mode, a first through hole 26 is provided on the upper buckle washer 23 to serve as a perspective window for observing the working conditions of the first locking member 24 and the second locking member 25 inside the bearing assembly; a second through hole 33 is provided on the lower buckle washer 32 to facilitate the falling of iron filings.

[0055] Specifically, the present application does not make specific limitations on the size and shape of the first through hole 26 and the second through hole 33, and those skilled in the art may make a selection according to actual conditions.

[0056] As an embodiment, it includes a water collection component, which includes a water collection trough 27 and a water collection box 28. The water collection trough 27 is arranged below the main frame to receive the water generated by the blasting during the test; the water collection box 28 is arranged at both ends of the water collection trough 27, and a drainage pipe is provided on the water collection box 28.

[0057] Specifically, during the test, water is generated by the blasting, which is collected by the water collecting tank 27 . The water flows along the water collecting tank 27 into the water collecting boxes 28 at both ends of the water collecting tank 27 , and is discharged through the drainage pipes on the water collecting boxes 28 .

[0058] As an implementation mode, a support member 31 is provided below the bearing assembly.

[0059] Specifically, since the bearing assembly has a relatively large weight, a support member 31 is provided to support the bearing assembly.

[0060] Specifically, the present application does not make any specific limitation on the shape of the support member 31 , and those skilled in the art may make a selection according to actual conditions.

[0061] As an implementation mode, a protective net 29 is provided above the main frame.

[0062] Specifically, the present application provides protection for the test process by setting a protection net 29 above the main frame.

[0063] Specifically, the protective net 29 is a thickened protective net to support a 15000KN tensile testing machine.

[0064] The working process of the horizontal tensile testing machine provided in the present application is as follows: the telescopic beam 9 is adjusted by the first oil cylinder 7 to adjust the sample space to meet the requirements of the sample. The adjusted test space is the sample placement position. The two ends of the sample are connected to the corresponding flange connector 22 through studs, and then the bearing assembly is connected to the corresponding flange connector 22; the lifting device 17 is adjusted to a suitable position, the sample is hoisted into the main frame as a whole, and the bearing assembly is connected to the pull head assembly; the moving end is fixed with a latch, and the sample is connected and placed. Check whether all connection dimensions and placement positions are correct, remove the hoisting equipment, and after confirmation, irrelevant personnel are evacuated. After ensuring the safety of the experimenters, the test can be started; start the equipment to start loading for testing; load the equipment for testing; after the test is completed, print (view) the test results.

[0065] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0066] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A horizontal tensile testing machine, characterized in that: It includes a main frame, a sample installation component, a cylinder end component and a mobile end component, wherein the main frame includes a guide rail and a support leg; the cylinder end component and the mobile end component are installed on the guide rail; the sample is connected to the cylinder end component at one end of the sample installation component and to the mobile end component at the other end; the cylinder end component includes a force sensor and a displacement sensor to measure changes in force and displacement; the mobile end component includes an angle sensor to measure angle changes; the mobile end component includes a motor and a moving beam, and the moving beam includes a piston rod, a piston head, a second oil cylinder, a cylinder cover and a pressure pad, and the pressure pad is arranged on both sides of the piston head.

2. A horizontal tensile testing machine according to claim 1, characterized in that: The cylinder end assembly also includes a reaction beam, a first cylinder, a cylinder beam and a telescopic beam. The force sensor is arranged between the reaction beam and the first cylinder to measure the change in force; the displacement sensor is arranged at the end of the reaction beam away from the sample to measure the change in displacement; the cylinder beam is connected to the first cylinder, and the telescopic beam is connected to the sample mounting assembly through a pull head connector.

3. A horizontal tensile testing machine according to claim 1, characterized in that: A gap of 5 mm is arranged between the piston head and the pressure pad, and the gap is filled with pressure oil so that the piston rod is always in a liquid lubrication state when working.

4. A horizontal tensile testing machine according to claim 1, characterized in that: A plurality of lifting devices are arranged inside the main frame to support the sample and reduce the influence of the sample's own weight on the test result.

5. A horizontal tensile testing machine according to claim 2, characterized in that: The sample installation assembly includes a pull head assembly, a fixture connector, a bearing assembly and a flange connector. The pull head assembly includes a pull head and a pull head latch. The telescopic beam is connected to the pull head through the pull head connector; the pull head latch connects the pull head to the fixture connector, and the flange connector is connected to the sample.

6. A horizontal tensile testing machine according to claim 5, characterized in that: The bearing assembly includes an upper buckle bearing, a lower buckle bearing, a first locking member and a second locking member, and the upper buckle bearing and the lower buckle bearing are fastened together by bolts; the first locking member and the second locking member are arranged between the upper buckle bearing and the lower buckle bearing; the second locking member is connected to the clamp connecting member, and the first locking member is connected to the flange connecting member.

7. A horizontal tensile testing machine according to claim 6, characterized in that: The upper buckle washer is provided with a first through hole to serve as a perspective window for observing the working conditions of the first locking member and the second locking member inside the bearing assembly; the lower buckle washer is provided with a second through hole to facilitate the falling of iron filings.

8. A horizontal tensile testing machine according to claim 1, characterized in that: It includes a water collection component, which includes a water collection trough and a water collection box. The water collection trough is arranged below the main frame to receive the water generated by the blasting during the test; the water collection box is arranged at both ends of the water collection trough, and a drainage pipe is arranged on the water collection box.

9. A horizontal tensile testing machine according to claim 5, characterized in that: A support member is provided below the bearing bush assembly.

10. A horizontal tensile testing machine according to claim 1, characterized in that: A protective net is arranged above the main frame.

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