CN110243584B - Clamping device capable of achieving stable installation of cantilever shaft - Google Patents
Clamping device capable of achieving stable installation of cantilever shaft Download PDFInfo
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- CN110243584B CN110243584B CN201910584612.2A CN201910584612A CN110243584B CN 110243584 B CN110243584 B CN 110243584B CN 201910584612 A CN201910584612 A CN 201910584612A CN 110243584 B CN110243584 B CN 110243584B
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- shaft
- cantilever shaft
- cantilever
- transition plate
- test piece
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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Abstract
The invention discloses a clamping device for achieving stable installation of a cantilever shaft. The device includes: the mounting panel, upper end nut, cantilever axle, transition plate, lower extreme nut and a plurality of connecting axles. Wherein: the mounting plate fixes one end of the cantilever shaft through an upper end nut; the other end of the cantilever shaft is fixed with the transition plate through a lower end nut; the test piece is arranged between two ends of the cantilever shaft; the transition plate is fixed with the connecting shaft through a lower end nut; the plurality of connecting shafts are uniformly distributed around the transition plate by taking the cantilever shaft as a center. The transition plate and the connecting shaft are stably arranged on the mounting plate through the ingenious design of the transition plate and the connecting shaft; through the split design of the connecting shaft, the device ingeniously avoids the installation interference of the test piece, and the stable installation of the test piece is realized. The loading device can realize reliable loading of the cantilever shaft in a test state, the loading process is stable and reliable, and the situation that the loading is not lasting when a long-life part is tested is avoided.
Description
Technical Field
The invention relates to the technical field of aviation tests, in particular to a clamping device capable of achieving stable installation of a cantilever shaft.
Background
In the fatigue test of the structural member of the aircraft product, a plurality of members need to be subjected to the fatigue test, and the fatigue test process needs to be adapted to the normal use environment of the structural member on an airplane as much as possible. The requirement is that a set of device is designed, simulation of a structural member under a test environment state of a flying piece installation state is carried out, and the design of a clamping device which meets the requirement of stable installation of the cantilever shaft is necessary.
A five-fork element of a certain type machine is mounted on an airplane and belongs to a cantilever shaft structure, and in a test state, a set of simulation five-fork element is required to simulate the stress condition of each part when the five-fork element works. The five-fork member stress is analyzed, and the stress is mainly concentrated on the middle spindle hole and the ends of the five fork lugs.
In actual loading, the five fork lugs are stressed simultaneously, so that in order to accelerate the test progress, the test load is larger than the real load and is of a cantilever shaft structure, and the requirement for stable and reliable installation at the middle main shaft hole is required. However, the current technology cannot satisfy the stable reliability of the installation at the center spindle hole.
Disclosure of Invention
The purpose of the invention is: the clamping device for stably mounting the cantilever shaft is designed, the test piece can be stably stressed in a test state, the cantilever shaft for mounting the test piece is converted into a frame structure capable of stably bearing force, the loading process is stable and reliable, and the problem that the loading is not lasting when the test piece is tested is avoided.
The clamping device comprises a mounting plate, a test piece, a transition plate and a connecting shaft, wherein the mounting plate fixes the cantilever shaft through an upper end nut;
the mounting plate fixes the cantilever shaft through the upper end nut, the test piece is mounted on the cantilever shaft, when the force borne by the test piece passes through the cantilever shaft, and when the transition plate is mounted, the force borne by the cantilever shaft is transmitted to the transition plate, and the transition plate is transmitted to the mounting plate through the connecting shaft.
The invention has the advantages that: the transition plate and the connecting shaft are stably arranged on the mounting plate through the ingenious design of the transition plate and the connecting shaft; through the split design of the connecting shaft, the device ingeniously avoids the installation interference of the test piece, and the stable installation of the test piece is realized. The loading device can realize reliable loading of the cantilever shaft in a test state, the loading process is stable and reliable, and the situation that the loading is not lasting when a long-life part is tested is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a clamping device for stable mounting of a cantilever shaft according to an embodiment of the present invention;
the device comprises a mounting plate 1, an upper end nut 2, a test piece 3 cantilever shaft 4, a transition plate 5, a lower end nut 6 and a connecting shaft 7.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all 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.
Features and illustrative embodiments of various aspects of the invention are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention. The present invention is in no way limited to any specific arrangement and method set forth below, but rather covers any improvements, substitutions and modifications in structure, method, and apparatus without departing from the spirit of the invention. In the drawings and the following description, well-known structures and techniques are not shown to avoid unnecessarily obscuring the present invention.
It should be noted that, in the case of conflict, the embodiments and features of the embodiments of the present invention may be combined with each other, and the respective embodiments may be mutually referred to and cited. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Fig. 1 is a schematic structural diagram of a clamping device for stable mounting of a cantilever shaft according to an embodiment of the present invention.
Referring to fig. 1, a clamping device satisfying cantilever shaft mounting stability may include: the device comprises a mounting plate 1, an upper end nut 2, a cantilever shaft 4 of a test piece 3, a transition plate 5, a lower end nut 6 and a connecting shaft 7.
The mounting plate 1 fixes the cantilever shaft 4 through the upper end nut 2, the test piece 3 is mounted on the cantilever shaft 4, the other end of the cantilever shaft 4 is fixed with the transition plate 5 through the lower end nut 6, the transition plate 5 is also fixed with the connecting shaft 7 through the lower end nut 6, and the connecting shaft 7 is uniformly distributed around the transition plate 5 along the cantilever shaft 4 as the center.
The mounting plate 1 fixes the cantilever shaft 4 through the upper end nut 2, the test piece 3 is mounted on the cantilever shaft 4, when the force borne by the test piece 3 passes through the cantilever shaft 4, when the transition plate 5 is mounted, the force borne by the cantilever shaft 4 is transmitted to the transition plate 5, and the transition plate 5 is transmitted to the mounting plate 1 through the connecting shaft 7.
When the test piece testing device is used, the cantilever shaft 4 is fixed on the mounting plate 1, and the test piece 3 is mounted on the cantilever shaft 4. In order to increase the stability of the cantilever shaft 4, the cantilever shaft 4 is connected with the transition plate 5, so that the cantilever shaft 4 is clamped at two ends, the transition plate 5 is fixed firmly with the mounting plate 1 through the connecting shaft 7, and the cantilever shaft 4, the transition plate 5 and the connecting shaft 7 form a stable frame structure through the upper end nut 2 and the lower end nut 6 and are stressed evenly.
By applying load to the test piece 3, the load is completely transmitted to the cantilever shaft 4, the upper end of the cantilever shaft 4 is directly and stably installed with the installation plate 1, the lower end of the cantilever shaft 4 transmits force to the connecting shaft 7 through the transition plate 5, and the connecting shaft 7 is directly installed on the installation plate 1, so that the whole device is reliably installed.
In some embodiments, a clamping device that satisfies cantilever shaft mounting stability is used to clamp a test piece 3. The device includes: the mounting plate 1, the upper end nut 2, the cantilever shaft 4, the transition plate 5, the lower end nut 6 and a plurality of connecting shafts 7. Wherein: the mounting plate 1 fixes one end of a cantilever shaft 4 through an upper end nut 2; the other end of the cantilever shaft 4 is fixed with a transition plate 5 through a lower end nut 6; the test piece 3 is arranged between two ends of the cantilever shaft 4; the transition plate 5 and the connecting shaft 7 are fixed through a lower end nut 6; a plurality of connecting shafts 7 are evenly distributed around the transition plate 5 with the cantilever shaft 4 as the center.
In some embodiments, when the force applied to the test piece 3 passes through the cantilever shaft 4, the force applied to the cantilever shaft 4 is transmitted to the transition plate 5, and the transition plate 5 transmits the supporting force to the mounting plate 1 through the connecting shaft 7.
In some embodiments, the number of connecting shafts 7 is equal to or greater than 2 and equal to or less than 7.
In some embodiments, the number of connecting shafts 7 is 4.
In some embodiments, when the clamping device is used, the cantilever shaft 4 is fixed on the mounting plate 1, and the test piece 3 is mounted on the cantilever shaft 4; the cantilever shaft 4 is connected with the transition plate 5, so that the cantilever shaft 4 has two ends clamped, and the stability of the cantilever shaft 4 is improved.
In some embodiments, the transition plate 5 is secured to the mounting plate 1 by a connecting shaft 7.
In some embodiments, the cantilever shaft 4, the transition plate 5 and the connecting shaft 7 form a stable frame structure through the upper end nut 2 and the lower end nut 6.
In some embodiments, the clamping test piece 3 is an aircraft structural member.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered within the scope of the present invention.
Claims (6)
1. A satisfy stable clamping device of cantilever axle installation for centre gripping under aircraft structure spare experimental condition, its characterized in that, the device includes:
mounting panel (1), upper end nut (2), cantilever axle (4), transition board (5), lower extreme nut (6) and a plurality of connecting axle (7), wherein:
one end of the cantilever shaft (4) is fixed by the mounting plate (1) through the upper end nut (2);
the other end of the cantilever shaft (4) is fixed with the transition plate (5) through a lower end nut (6);
the test piece (3) is arranged between two ends of the cantilever shaft (4);
the transition plate (5) is fixed with the connecting shaft (7) through a lower end nut (6);
a plurality of connecting shafts (7) are uniformly distributed around the transition plate (5) by taking the cantilever shaft (4) as a center;
when the stress on the test piece (3) passes through the cantilever shaft (4), the stress on the cantilever shaft (4) is transmitted to the transition plate (5), the transition plate (5) transmits the supporting force to the mounting plate (1) through the connecting shaft (7), so that the test piece can be stably stressed in a test state, the cantilever shaft for mounting the test piece is converted into a frame structure capable of stably bearing the force, the loading process is stable and reliable, and the problem that the loading is not lasting when the test piece is tested is avoided.
2. The clamping device of claim 1, wherein:
the number of the connecting shafts (7) is more than or equal to 2 and less than or equal to 7.
3. The clamping device of claim 1, wherein:
the number of the connecting shafts (7) is 4.
4. The clamping device of claim 1, wherein:
when the clamping device is used, the cantilever shaft (4) is fixed on the mounting plate (1) first, and the test piece (3) is mounted on the cantilever shaft (4);
the cantilever shaft (4) is connected with the transition plate (5), so that the cantilever shaft (4) has two ends to be clamped, and the stability of the cantilever shaft (4) is improved.
5. The clamping device of claim 1, wherein:
the transition plate (5) is fixed with the mounting plate (1) through a connecting shaft (7).
6. The clamping device of claim 1, wherein:
the cantilever shaft (4), the transition plate (5) and the connecting shaft (7) form a stable frame structure through the upper end nut (2) and the lower end nut (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910584612.2A CN110243584B (en) | 2019-07-01 | 2019-07-01 | Clamping device capable of achieving stable installation of cantilever shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910584612.2A CN110243584B (en) | 2019-07-01 | 2019-07-01 | Clamping device capable of achieving stable installation of cantilever shaft |
Publications (2)
| Publication Number | Publication Date |
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| CN110243584A CN110243584A (en) | 2019-09-17 |
| CN110243584B true CN110243584B (en) | 2021-10-08 |
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| CN201910584612.2A Active CN110243584B (en) | 2019-07-01 | 2019-07-01 | Clamping device capable of achieving stable installation of cantilever shaft |
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Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101134484B (en) * | 2007-10-18 | 2011-04-13 | 隆鑫通用动力股份有限公司 | Motor two-wheel vehicle frame |
| CN201818668U (en) * | 2010-09-10 | 2011-05-04 | 浙江大学 | Cantilever shaft support device |
| CN202097087U (en) * | 2011-05-31 | 2012-01-04 | 胜利油田胜利石油化工建设有限责任公司 | Elbow cantilever clamping device |
| CN102363407A (en) * | 2011-11-22 | 2012-02-29 | 东风汽车公司 | Independent suspension mounting bracket structure |
| CN202413919U (en) * | 2011-11-22 | 2012-09-05 | 东风汽车公司 | Transversely-mounted reinforced beam |
| CN204477095U (en) * | 2015-02-15 | 2015-07-15 | 芜湖市长江起重设备制造有限公司 | The cantilever shaft support device of single-ended mounting or dismounting |
| CN104816982B (en) * | 2015-03-09 | 2018-01-02 | 烽火通信科技股份有限公司 | A kind of cantilevered axle bracing means of cantilevered fiberoptic admission machine |
| CN206804458U (en) * | 2017-03-31 | 2017-12-26 | 沈阳盛远检测技术有限公司 | Fatigue tester stand under load end projection web specimen holder |
| CN107166698B (en) * | 2017-07-10 | 2023-09-19 | 珠海格力电器股份有限公司 | Air valve device and air conditioner |
| CN207007426U (en) * | 2017-07-26 | 2018-02-13 | 中国航发贵州航空发动机维修有限责任公司 | One kind reinforcing oil transportation circle leakage test fixture |
| CN208591384U (en) * | 2017-09-19 | 2019-03-12 | 张树宏 | A kind of fixed device of preoperative enema of general surgery |
| CN207583479U (en) * | 2017-10-18 | 2018-07-06 | 新昌县回山镇启迪五金经营部 | A kind of mounting bracket of the high muffler of stability |
| CN108032235A (en) * | 2017-12-19 | 2018-05-15 | 合肥长安汽车有限公司 | A kind of fixture for being used to detect sealing strip precipitate |
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