Testing device with transverse horizontal pulling and longitudinal extruding functions

Abstract

The utility model discloses a testing device with transverse horizontal pulling and longitudinal extruding functions, and belongs to the technical field of testing devices. The device comprises an extrusion mechanism, a pre-tensioning mechanism, a lifting supporting mechanism and a control mechanism. Wherein the extrusion mechanism comprises an extrusion frame, four or more extrusion oil cylinders, an extrusion sensor and an oil source assembly, the extrusion oil cylinders are arranged on the extrusion frame, the extrusion oil cylinders are concentrically and uniformly distributed, and the extrusion sensor is arranged in the extrusion frame; the pre-stretching mechanism comprises a stretching frame, a sample placing table, a stretching oil cylinder, a piston pull rod, a stretching sensor, a telescopic cross beam, an oil cylinder cross beam, a fixed cross beam, a guide rail and a fixed frame. The test device provided by the utility model is suitable for test samples made of various materials such as marine hoses, petroleum pipelines, ropes, chains and the like, and meets the test requirements of the test samples with different specifications and lengths.

Description

Technical Field

[0001] The present application belongs to the technical field of testing devices, and in particular relates to a testing device capable of both horizontal pulling and longitudinal extrusion. Background Art

[0002] The horizontal tension tester and the longitudinal extrusion tester are two devices for testing. The ordinary horizontal tension tester cannot perform the longitudinal extrusion test while stretching. For example, Chinese patent CN 216847222 U discloses a tensile tester based on microcomputer-controlled electro-hydraulic servo, which solves the problem that there is no device to protect the machine above the existing tensile tester. When the staff applies lubricating oil to the screw on the machine, the dust in the air will contact the lubricating oil, so the speed of lubricating oil agglomeration will increase. However, it is impossible to test the sample by horizontal tension and extrusion at the same time. Therefore, this application designs a device combining horizontal pre-tensioning and longitudinal extrusion tester with microcomputer-controlled electro-hydraulic servo. Utility Model Content

[0003] In order to solve the above problems, the present application proposes a test device capable of both horizontal pulling and longitudinal squeezing, the test device comprising:

[0004] The extrusion mechanism comprises an extrusion frame, four or more extrusion oil cylinders, an extrusion sensor, and an oil source assembly, wherein the extrusion oil cylinders are arranged on the extrusion frame, the extrusion oil cylinders are uniformly distributed concentrically, and the extrusion sensor is arranged inside the extrusion frame;

[0005] The pre-tensioning mechanism comprises a stretching frame, a sample placement table, a stretching oil cylinder, a piston pull rod, a stretching sensor, a telescopic beam, an oil cylinder beam, a fixed beam, a guide rail, and a fixed frame. The sample placement table is arranged in the stretching frame, the stretching oil cylinder is arranged on the oil cylinder beam and connected to one end of the telescopic beam, one end of the piston pull rod is connected to the stretching sensor and fixed on the telescopic beam, the fixed frame is arranged on the fixed beam, and the telescopic beam is arranged on the surface of the guide rail;

[0006] A lifting support mechanism, comprising a support assembly and two groups of worm gear lifts, wherein the support assembly comprises 11 or more support legs and support columns, one group of the worm gear lifts is arranged on the extrusion frame and parallel to the support legs, and the other group of the worm gear lifts is arranged at the lower end of the pre-tensioning mechanism;

[0007] Control mechanism, including data acquisition system, control system and hydraulic pump station.

[0008] Optionally, the pre-tensioning mechanism further includes a guide rod, which passes through the telescopic beam and the fixing frame to prevent the telescopic beam from deviating during operation.

[0009] Optionally, the extrusion frame is a diamond-shaped frame structure, and a clamping and fixing component is provided on the extrusion frame.

[0010] Optionally, the extrusion cylinders are uniformly distributed concentrically with a main axis deviating by 45°.

[0011] Optionally, the oil source assembly includes a servo pump directly driven oil source.

[0012] Optionally, the telescopic beam is provided with a connecting flange, and the fixed beam is provided with a rotatable flange.

[0013] Optionally, a photoelectric encoder is installed on one side of the stretching cylinder to test the deformation degree of the sample.

[0014] Optionally, the compression sensor is a spoke sensor, and the stretching sensor is a displacement sensor.

[0015] Optionally, the test device further comprises an inner diameter measuring mechanism for measuring the inner diameter change rate.

[0016] Optionally, the test device further includes auxiliary mechanisms, which include a water pressure boosting and pressure control system, an air pressure boosting and pressure control system, a heating and temperature control system, and a measurement and control software and hardware system.

[0017] The beneficial effects of this application include but are not limited to:

[0018] 1. The test device provided in this application is capable of both horizontal pulling and longitudinal extrusion, and is suitable for testing samples of various materials such as marine hoses, oil pipelines, ropes, chains, etc., and meets the requirements for testing samples of different specifications and lengths;

[0019] 2. The test device provided in this application has both horizontal pulling and longitudinal extrusion. By setting a servo pump to directly drive the oil source, the performance is stable and reliable, the control accuracy is high, there is no heat, no noise, and it is energy-saving and environmentally friendly;

[0020] 3. The test device provided by the present application has both horizontal horizontal pulling and longitudinal extrusion. The connecting flange is provided on the telescopic crossbeam and connected to one end of the test piece. The fixed crossbeam end is connected to the rotatable flange and connected to the other end of the test piece. This can effectively prevent the test piece from slipping due to insufficient force of the extrusion cylinder under the action of the stretching cylinder during the test. It can make the test piece pre-stretched and straightened, help the extrusion cylinder of the extrusion test find the center of the extrusion test piece, and reduce the impact of the mechanical asynchronism of the four cylinders on the test data.

[0021] 4. The test device provided in this application, which has both horizontal pulling and longitudinal extrusion, can be highly integrated, stable and reliable by setting a control mechanism, and realize full automation processing;

[0022] 5. The test device provided in this application is capable of both horizontal pulling and longitudinal extrusion, and can perform tensile load, destruction and other tests on samples one by one. It is required to have the advantages of flexible and convenient operation, slow and stable loading, strong body load-bearing capacity, and convenient sample taking. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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:

[0024] Figure 1 This is a schematic diagram of the overall structure of a test device with both horizontal pulling and longitudinal extrusion according to an embodiment of the present application;

[0025] Figure 2 This is a schematic diagram of the overall structure of a test device involved in another embodiment of the present application;

[0026] Figure 3 It is a schematic diagram of the cross-sectional structure of the test device involved in the embodiment of the present application.

[0027] List of parts and reference numerals:

[0028] 1-extrusion frame, 2-extrusion cylinder, 3-extrusion sensor, 4-stretching frame, 5-sample placement table, 6-stretching sensor, 7-stretching cylinder, 8-cylinder beam, 9-telescopic beam, 10-fixed beam, 11-fixed frame, 12-first worm gear lift, 13-second worm gear lift, 14-support leg, 15-climbing frame, 16-protective shell, 17-connecting flange, 18-rotatable flange, 19-latch, 20-clamp, 21-fixing part. DETAILED DESCRIPTION

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] refer to Figure 1-3 The embodiment of the present application discloses a testing device with both horizontal pulling and longitudinal squeezing, and the testing device includes: an squeezing mechanism, a pre-tensioning mechanism, a lifting support mechanism, and a control mechanism.

[0037] The extrusion mechanism includes an extrusion frame 1, 4 or more extrusion cylinders 2, an extrusion sensor 3, and an oil source component. The extrusion frame 1 can be a diamond frame structure, which is welded. A clamping and fixing component is arranged on the extrusion frame 1. In a specific embodiment, a climbing frame 15 is also arranged on the surface of the extrusion frame 1, which is used by the staff to inspect and test the extrusion cylinder 2. The clamping and fixing component includes a latch 19, an equidistant pin hole, a clamp 20 and a fixing 21. The latch 19 is arranged on the extrusion frame 1 through the equidistant pin hole to fix the extrusion cylinder 2. The fixing 21 is arranged between the extrusion cylinder 2 and the clamp 20, and the shape of the clamp 20 can be changed according to the different shapes of the specimens. The extrusion cylinder 2 is arranged on the extrusion frame 1 and contacts the fixing 21. The extrusion cylinder 2 is uniformly distributed concentrically with the main axis (z-axis direction) deviating by 45°. The extrusion sensor 3 can be one or more, which are arranged inside the extrusion frame 1. In a specific embodiment, there are two extrusion sensors 3, which are arranged at the upper and lower parts of the extrusion frame 1 respectively. The extrusion sensor 3 is a spoke sensor for measuring the extrusion force. The oil source assembly includes a servo pump direct drive oil source, which has stable and reliable performance, high control accuracy, no heat, no noise, energy saving and environmental protection.

[0038] The pre-tensioning mechanism includes a stretching frame 4, a sample placement table 5, a stretching cylinder 7, a piston pull rod, a stretching sensor 6, a telescopic beam 9, a cylinder beam 8, a fixed beam 10, a guide rail, and a fixed frame 11. The stretching frame 4 can be a double-frame horizontal structure, which is welded by steel plates, but the present application is not limited to this. The sample placement table 5 is arranged in the stretching frame 4 for placing the sample. The stretching cylinder 7 is arranged on the cylinder beam 8 and connected to one end of the telescopic beam 9. One end of the piston pull rod is connected to the stretching sensor 6 and fixed on the telescopic beam 9. The stretching sensor 6 is a displacement sensor for measuring the displacement of the sample tensile pressure. The fixed frame 11 is arranged on the fixed beam 10 for further fixing. The telescopic beam 9 is arranged on the surface of the guide rail, and the guide rail can be a linear guide rail, but the present application is not limited to this. A connecting flange 17 is arranged on the telescopic beam 9, which is connected to one end of the sample, and a rotatable flange 18 is arranged on the fixed beam 10, and a rotatable flange 18 is also arranged on the other end of the sample. It can effectively prevent the sample from slipping due to insufficient force of the extrusion cylinder 2 under the action of the stretching cylinder 7 during the test. Moreover, it can make the sample pre-stretched straight, help the extrusion cylinder of the extrusion test find the center of the extruded sample, and reduce the impact of the mechanical asynchrony of the extrusion cylinder on the test data. In a specific embodiment, a protective shell 16 is also provided on the upper part of the pre-tensioning mechanism. The protective shell 16 is movable to prevent the sample material from splashing out of the device during the test, thereby playing a protective role.

[0039] In a specific embodiment, the pre-tensioning mechanism further includes a guide rod (not shown), which passes through the telescopic beam 9 and the fixing frame 11 to prevent the telescopic beam 9 from deviating during operation, thereby effectively reducing mechanical damage to the telescopic cylinder.

[0040] In a specific embodiment, a photoelectric encoder is installed on one side of the stretching cylinder 7 to test the deformation degree of the sample.

[0041] The lifting support mechanism includes a support assembly and two sets of worm gear lifts. The support assembly includes 11 or more support legs 14 and a support column. The first worm gear lift 12 is arranged on the extrusion frame 1 and is arranged parallel to the support legs 14. The second worm gear lift 13 is arranged at the lower end of the pre-tensioning mechanism. During the test, the two sets of worm gear lifts are used to adjust the position of the sample to ensure that the test sample is in the center position.

[0042] The control mechanism includes data acquisition system, control system and hydraulic pump station. The control mechanism can be highly integrated, stable and reliable, and realize full automation processing.

[0043] In a specific embodiment, the test device further includes an inner diameter measuring mechanism, which can be disposed on the surface of the sample and is used to measure the inner diameter change rate.

[0044] In a specific embodiment, the test device further includes auxiliary mechanisms, which include a water pressure boosting and pressure control system, an air pressure boosting and pressure control system, a heating and temperature control system, and a measurement and control software and hardware system.

[0045] The specific operation mode of the above test device is as follows:

[0046] ① Adjust the telescopic crossbeam 9 through the stretching cylinder 7, adjust the test space to the position where the sample is placed, open the latch 19 on the diamond cylinder fixing frame 11, and retract the four extrusion cylinders 2 at the same time, install them firmly, check whether they are correct after installation, and connect the connecting flange and the rotatable flange to the test sample;

[0047] ② After hoisting the sample, place the sample from the top of the test device. After placing the sample, pre-tighten the four extrusion cylinders 2, clamp the sample with the clamp 20, adjust the position of the sample through two worm gear elevators, ensure that the sample is in the center, place the inner diameter measuring mechanism inside the sample, close the opening above the diamond frame, install the latch 19 to fix it, and after the sample is connected and placed, check whether all connection dimensions and placement positions are correct, remove the hoisting equipment, and after confirmation, evacuate irrelevant personnel to ensure the safety of the experimenters before starting the test;

[0048] ③ Start the equipment stretching cylinder 7 and four extrusion cylinders 2 to load and perform extrusion test at the same time;

[0049] ④ Load the equipment for test;

[0050] ⑤After the test is completed, print (view) the test results.

[0051] 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 testing device capable of both horizontal pulling and longitudinal extrusion, characterized in that: The test device comprises: The extrusion mechanism comprises an extrusion frame, four or more extrusion oil cylinders, an extrusion sensor, and an oil source assembly, wherein the extrusion oil cylinders are arranged on the extrusion frame, the extrusion oil cylinders are uniformly distributed concentrically, and the extrusion sensor is arranged inside the extrusion frame; The pre-tensioning mechanism comprises a stretching frame, a sample placement table, a stretching oil cylinder, a piston pull rod, a stretching sensor, a telescopic beam, an oil cylinder beam, a fixed beam, a guide rail, and a fixed frame. The sample placement table is arranged in the stretching frame, the stretching oil cylinder is arranged on the oil cylinder beam and connected to one end of the telescopic beam, one end of the piston pull rod is connected to the stretching sensor and fixed on the telescopic beam, the fixed frame is arranged on the fixed beam, and the telescopic beam is arranged on the surface of the guide rail; A lifting support mechanism, comprising a support assembly and two groups of worm gear lifts, wherein the support assembly comprises 11 or more support legs and support columns, one group of the worm gear lifts is arranged on the extrusion frame and parallel to the support legs, and the other group of the worm gear lifts is arranged at the lower end of the pre-tensioning mechanism; Control mechanism, including data acquisition system, control system and hydraulic pump station.

2. The testing device with both horizontal pulling and longitudinal squeezing according to claim 1, characterized in that: The pre-tensioning mechanism also includes a guide rod, which passes through the telescopic beam and the fixing frame to prevent the telescopic beam from deviating during operation.

3. The testing device with both horizontal pulling and longitudinal squeezing according to claim 1, characterized in that: The extrusion frame is a diamond-shaped frame structure, and a clamping and fixing component is arranged on the extrusion frame.

4. The testing device with both horizontal pulling and longitudinal squeezing according to claim 1, characterized in that: The extrusion cylinders are uniformly distributed concentrically with the main axis deviating by 45 degrees.

5. The testing device with both horizontal horizontal pulling and longitudinal extrusion according to claim 1, characterized in that: The oil source assembly includes a servo pump directly driven oil source.

6. The testing device with both horizontal pulling and longitudinal squeezing according to claim 1, characterized in that: The telescopic crossbeam is provided with a connecting flange, and the fixed crossbeam is provided with a rotatable flange.

7. The testing device with both horizontal horizontal pulling and longitudinal extrusion according to claim 1, characterized in that: A photoelectric encoder is installed on one side of the stretching cylinder to test the deformation degree of the sample.

8. The testing device with both horizontal horizontal pulling and longitudinal extrusion according to claim 1, characterized in that: The extrusion sensor is a spoke sensor, and the stretching sensor is a displacement sensor.

9. The testing device with both horizontal pulling and longitudinal squeezing according to claim 1, characterized in that: The test device also includes an inner diameter measuring mechanism for measuring the inner diameter change rate.

10. The testing device with both horizontal horizontal pulling and longitudinal extrusion according to claim 1, characterized in that: The test device also includes auxiliary mechanisms, which include a water pressure boosting and pressure control system, an air pressure boosting and pressure control system, a heating and temperature control system, and a measurement and control software and hardware system.

Images