CN104990696B - A kind of loading system - Google Patents
A kind of loading system Download PDFInfo
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- CN104990696B CN104990696B CN201510349302.4A CN201510349302A CN104990696B CN 104990696 B CN104990696 B CN 104990696B CN 201510349302 A CN201510349302 A CN 201510349302A CN 104990696 B CN104990696 B CN 104990696B
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- 238000012360 testing method Methods 0.000 claims abstract description 131
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
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- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The invention discloses a kind of loading system.The loading system includes：Testing machine, testing machine have experiment machine platform and pressure head of testing machine；Charging assembly, its one end for having auricle with pressure head of testing machine and part to be tested respectively are connected；Supporter, the other end of the supporter respectively with the experiment machine platform and the part to be tested are connected；Lateral charging assembly, one end that the lateral charging assembly is used to have auricle with the part to be tested are connected；Wherein, testing machine is used to provide the load along part axial direction to be tested；Charging assembly is used to give the load transmission to the part to be tested；Supporter is used to fix the part to be tested；Lateral charging assembly is used to provide the power perpendicular to a face of part to be tested for part to be tested.The loading system of the present invention can give part pressure and moment of flexure to be tested simultaneously, so as to simulate the true stressing conditions of part to be tested.It is easy to control and the loading system of the present invention is simple to operate.
Description
Technical Field
The invention relates to the technical field of airplanes, in particular to a loading system.
Background
The test piece with the lug is usually stressed more complexly during the actual use process.
For example, in the aircraft field, aircraft vertical tail joint applications are subject to complex forces, and in addition to bearing the primary in-plane loading of the joint, the forces or bending moments are typically applied in an out-of-plane direction, which results in out-of-plane bending deformation of the joint.
In the prior art, usually, axial load tests are adopted for test examination of the vertical and horizontal tail connecting joint of the airplane, whether the design of the airplane joint structure is reasonable or not is evaluated by combining the theoretical calculation result of the lateral load, and the lateral stress state of the airplane joint is not reproduced in the test, so that the design of the complex stressed joint is lack of test basis.
Accordingly, a technical solution is desired to overcome or at least alleviate at least one of the above-mentioned drawbacks of the prior art.
Disclosure of Invention
It is an object of the present invention to provide a loading system that overcomes or at least alleviates at least one of the above-mentioned disadvantages of the prior art.
In order to achieve the above object, the present invention provides a loading system for loading a test piece to be tested with a load, wherein one end of the test piece to be tested is provided with an ear piece, the test piece to be tested includes two surfaces, and the loading system includes: a testing machine having a testing machine platform and a testing machine pressure head; the loading assembly is respectively connected with the tester pressure head and one end of the to-be-tested piece, which is provided with the lug piece; the supporting piece is respectively connected with the testing machine platform and the other end of the test piece to be tested; the lateral loading assembly is used for being connected with one end of the test piece to be tested, which is provided with the lug piece; the testing machine is used for providing a load along the axial direction of the test piece to be tested; the loading assembly is used for transferring the load to the test piece to be tested; the supporting piece is used for fixing the test piece to be tested; the lateral loading assembly is used for providing a force which is perpendicular to one surface of the test piece to be tested for the test piece to be tested.
Preferably, the supporting piece is a supporting angle seat, and the supporting angle seat is arranged on the testing machine platform and used for fixing one end connected with the test piece to be tested.
Preferably, the supporting angle seat clamps the test piece to be tested and is fixedly connected with the test piece to be tested through a bolt.
Preferably, the loading subassembly includes the pressure head, the one end of pressure head with the testing machine pressure head is connected, the other end with the test piece that awaits measuring has the one end of auricle and is connected, the pressure head be used for with the load transmission of testing machine is in the test piece that awaits measuring.
Preferably, the loading assembly further comprises a universal ball joint pressure head, and the pressure head is connected with the testing machine pressure head through the universal ball joint pressure head.
Preferably, the side loading assembly comprises: a bearing wall; one end of the actuating cylinder is fixedly connected with the bearing wall, and the other end of the actuating cylinder is connected with one end of the test piece to be tested, which is provided with the lug piece; the bearing wall is used for fixing and supporting the actuating cylinder; the actuating cylinder is used for providing a force which is perpendicular to one surface of the test piece to be tested for the test piece to be tested.
Preferably, the lateral loading assembly further comprises a force sensor arranged on the actuating cylinder and used for testing the force of the actuating cylinder on the test piece to be tested.
Preferably, the lateral loading assembly further comprises a steel ball and a concave pin; the concave pin shaft is used for connecting the test piece to be tested and the actuating cylinder, wherein one end, provided with a concave surface, of the concave pin shaft is connected with the actuating cylinder; the steel balls are arranged in the concave surface of the concave surface pin shaft, so that the force transmitted by the actuating cylinder is transmitted to the test piece to be tested after passing through the steel balls.
Preferably, the central axis of the tester pressure head, the central axis of the pressure head and the central axis of the test piece to be tested are the same axis.
Preferably, the support member is capable of relative movement with respect to the tester platform.
In the loading system, the testing machine is used for providing a load along the axial direction of a test piece to be tested; the loading assembly is used for transferring the load to a test piece to be tested; the supporting piece is used for fixing a test piece to be tested; the lateral loading assembly is used for providing a force which is perpendicular to one surface of the test piece to be tested for the test piece to be tested. The loading system can simultaneously apply pressure and bending moment to the test piece to be tested, so that the real stress condition of the test piece to be tested is simulated. The loading system is simple to operate and convenient to control.
Drawings
Fig. 1 is a schematic structural diagram of a loading system according to an embodiment of the present invention.
Reference numerals:
| 1 | test piece to be tested | 5 | Universal spherical hinge pressure head |
| 2 | Testing machine | 6 | Bearing wall |
| 21 | Testing machine platform | 7 | Actuating cylinder |
| 22 | Pressure head of tester | 8 | Force sensor |
| 3 | Support angle seat | 9 | Steel ball |
| 4 | Pressure head | 10 | Concave surface pin shaft |
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. 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. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The loading system is used for loading a load on a test piece to be tested, and one end of the test piece to be tested is provided with an ear piece, wherein the test piece to be tested comprises two surfaces.
The loading system comprises a testing machine, a loading assembly, a support piece and a side loading assembly. The testing machine is provided with a testing machine platform and a testing machine pressure head; the loading assembly is respectively connected with the pressure head of the tester and one end of the test piece to be tested, which is provided with the lug piece; the supporting piece is respectively connected with the testing machine platform and the other end of the test piece to be tested; the lateral loading assembly is used for being connected with one end of the test piece to be tested, which is provided with the lug piece; the testing machine is used for providing a load along the axial direction of a test piece to be tested; the loading assembly is used for transferring the load to a test piece to be tested; the supporting piece is used for fixing a test piece to be tested; the lateral loading assembly is used for providing a force which is perpendicular to one surface of the test piece to be tested for the test piece to be tested.
Fig. 1 is a schematic structural diagram of a loading system according to an embodiment of the present invention.
The loading system shown in fig. 1 comprises a testing machine 2, a loading assembly, a support member and a side loading assembly.
Referring to fig. 1, in this embodiment, the tester 2 includes a tester platform 21 and a tester indenter 22. The testing machine 2 is used for providing a load along the axial direction of the test piece 1 to be tested;
referring to fig. 1, the supporting member is connected to the testing machine platform 21 and one end of the test piece 1 to be tested, respectively. Specifically, in this embodiment, the supporting member is a supporting angle seat 3, and the supporting angle seat 3 is disposed on the testing machine platform 21 and is used for fixing one end connected to the test member 1 to be tested.
More specifically, the supporting angle seat 3 clamps the test piece 1 to be tested and is tightly connected with the test piece 1 to be tested through bolts.
It will be appreciated that the purpose of the support is to hold the test piece 1 to be tested, and therefore any shape of support may be used. For example, the support member may be a clamping type device for clamping and fastening the test piece to be tested.
Referring to fig. 1, the loading assembly is used to transfer a load to a test piece 1 to be tested.
In this embodiment, the loading subassembly includes pressure head 4 and universal ball pivot pressure head 5, and the one end and the testing machine pressure head 22 of pressure head 4 are connected, and the other end is connected with the one end that the testpieces 1 that awaits measuring has the auricle, and pressure head 4 is used for transmitting the load of testing machine 2 for the testpieces 1 that awaits measuring. Specifically, in the present embodiment, the indenter 4 is connected to the tester indenter 22 via a universal ball joint indenter 5. By adopting the structure, the rotation of the universal ball hinge can be realized, so that when the central axis of the testing machine pressure head 22 of the testing machine 2 has deviation with the central axis of the pressure head 4, the alignment is carried out through the universal ball hinge, and the direction of the transmitted force is consistent with the axial direction of the test piece to be tested.
In this embodiment, the side loading assembly is used to provide a force to the test piece 1 to be tested that is perpendicular to one face of the test piece 1 to be tested.
Referring to fig. 1, the side loading assembly comprises a bearing wall 6, an actuating cylinder 7, a force sensor 8, a steel ball 9 and a concave pin shaft 10.
Referring to fig. 1, in this embodiment, one end of the actuator cylinder 7 is fixedly connected to the bearing wall 6, and the other end is connected to one end of the test piece 1 to be tested, which has a lug; wherein, the bearing wall 6 is used for fixing and supporting the actuating cylinder 7; the actuator cylinder 7 is used to provide a force to the test piece 1 to be tested perpendicular to one face of the test piece 1 to be tested.
Referring to fig. 1, in the present embodiment, a force sensor 8 is provided on the ram 7 for testing the amount of force the ram 7 imparts on the test piece 1 to be tested.
Referring to fig. 1, in the present embodiment, a concave pin 10 is used to connect the test piece 1 to be tested and the actuator cylinder 7, wherein one end of the concave pin 10 having a concave surface is connected to the actuator cylinder 7; the steel ball 9 is arranged in the concave surface of the concave surface pin shaft 10, so that the force transmitted by the actuating cylinder 7 is transmitted to the test piece 1 to be tested after passing through the steel ball 9. By adopting the structure, the force transmitted by the actuating cylinder can be corrected in a rolling mode of the steel ball 9 in the concave surface of the concave surface pin shaft 10 when the force has deviation, so that the force transmitted by the actuating cylinder 7 to the test piece to be tested is prevented from having deviation.
Advantageously, the central axis of the tester indenter 22, the central axis of the indenter 4 and the central axis of the test piece 1 to be tested are coaxial.
Advantageously, in this embodiment, the support member is capable of relative movement with respect to the tester platform 21. By adopting the structure, the relative relation between the supporting piece and the platform of the testing machine can be adjusted, so that the centroid position of the testing piece can be adjusted.
Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. The utility model provides a loading system for the test piece loading load that awaits measuring, one of test piece (1) that awaits measuring is served and is provided with the auricle, wherein, test piece (1) that awaits measuring includes two faces, its characterized in that, loading system includes:
a testing machine (2), the testing machine (2) having a testing machine platform (21) and a testing machine indenter (22);
the first loading assembly is respectively connected with the tester pressure head (22) and one end of the to-be-tested piece (1) with the lug piece;
the supporting piece is respectively connected with the testing machine platform (21) and the other end of the to-be-tested test piece (1);
the lateral loading assembly is used for being connected with one end of the test piece to be tested, which is provided with the lug piece; wherein,
the testing machine (2) is used for providing a load along the axial direction of the test piece (1) to be tested; the first loading assembly is used for transferring the load of the testing machine (2) to the test piece (1) to be tested; the supporting piece is used for fixing the test piece (1) to be tested; the lateral loading assembly is used for providing a force which is perpendicular to one surface of the test piece (1) to be tested for the test piece (1) to be tested;
the first loading assembly comprises a first pressure head (4), one end of the first pressure head (4) is connected with the tester pressure head (22), the other end of the first pressure head is connected with one end, provided with an ear piece, of the test piece (1) to be tested, and the first pressure head (4) is used for transmitting the load of the tester (2) to the test piece (1) to be tested;
the first loading assembly further comprises a universal spherical hinge pressure head (5), and the first pressure head (4) is connected with the tester pressure head (22) through the universal spherical hinge pressure head (5);
the side-loading assembly comprises:
a bearing wall (6);
one end of the actuating cylinder (7) is fixedly connected with the bearing wall (6), and the other end of the actuating cylinder (7) is connected with one end, provided with the lug, of the test piece (1) to be tested; wherein,
the bearing wall (6) is used for fixing and supporting the actuating cylinder (7); the actuating cylinder (7) is used for providing a force which is perpendicular to one surface of the test piece (1) to be tested for the test piece (1) to be tested;
the lateral loading assembly further comprises a force sensor (8), wherein the force sensor (8) is arranged on the actuating cylinder (7) and used for testing the force of the actuating cylinder (7) on the test piece (1) to be tested;
the lateral loading assembly further comprises a steel ball (9) and a concave pin shaft (10); wherein,
the concave pin shaft (10) is used for connecting the test piece (1) to be tested with the actuating cylinder (7), wherein one end, provided with a concave surface, of the concave pin shaft (10) is connected with the actuating cylinder (7); the steel ball (9) is arranged in the concave surface of the concave surface pin shaft (10), so that the force transmitted by the actuating cylinder (7) is transmitted to the to-be-tested test piece (1) through the steel ball (9).
2. The loading system according to claim 1, wherein the support member is a support angle seat (3), and the support angle seat (3) is arranged on the testing machine platform (21) and used for fixing one end connected with the test member (1) to be tested.
3. The loading system according to claim 2, characterized in that the supporting angle seat (3) clamps the test piece (1) to be tested and is firmly connected with the test piece (1) to be tested through bolts.
4. The loading system according to claim 1, wherein the central axis of the tester ram (22), the central axis of the first ram (4) and the central axis of the test piece (1) to be tested are coaxial.
5. The loading system of claim 1, wherein the support is relatively movable with respect to the tester platform (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510349302.4A CN104990696B (en) | 2015-06-23 | 2015-06-23 | A kind of loading system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510349302.4A CN104990696B (en) | 2015-06-23 | 2015-06-23 | A kind of loading system |
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| CN104990696A CN104990696A (en) | 2015-10-21 |
| CN104990696B true CN104990696B (en) | 2017-12-12 |
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| CN201510349302.4A Active CN104990696B (en) | 2015-06-23 | 2015-06-23 | A kind of loading system |
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| CN105366074B (en) * | 2015-11-25 | 2018-10-09 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of monaural auricle load applying method with triple motion degree of freedom |
| CN105606452B (en) * | 2016-03-04 | 2018-02-09 | 国机集团北京飞机强度研究所有限公司 | The power rod member outfield load calibration of aircraft two/strength test portable unit |
| CN106168556B (en) * | 2016-06-21 | 2019-05-24 | 中国飞机强度研究所 | A kind of anti-unstability device tested for docking wall strength |
| CN106596289B (en) * | 2016-12-06 | 2019-02-12 | 山东科技大学 | A kind of metal tube pure bending deformation testing device and its experimental method |
| CN107340126A (en) * | 2017-07-12 | 2017-11-10 | 昌河飞机工业（集团）有限责任公司 | A kind of coaxial load maintainer of anti-interference |
| CN109186915A (en) * | 2018-08-22 | 2019-01-11 | 中国飞机强度研究所 | A kind of structural features big load impact test loading device and method |
| CN109507039B (en) * | 2018-10-15 | 2021-12-10 | 西北工业大学 | High-temperature fretting fatigue test device and test method based on bending deformation |
| CN110203420B (en) * | 2019-05-29 | 2022-09-20 | 陕西飞机工业（集团）有限公司 | Aircraft static test receives oil pipe spare front support loading simulation piece |
| CN112213088B (en) * | 2020-09-22 | 2022-10-14 | 上海航天精密机械研究所 | Cabin structure compression-shear coupling load test device |
| CN113138071B (en) * | 2021-04-20 | 2023-10-20 | 中国飞机强度研究所 | Test device for applying bidirectional compression load |
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