CN108627390B - Connector device of multifunctional adjustable pressure fatigue machine - Google Patents
Connector device of multifunctional adjustable pressure fatigue machine Download PDFInfo
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- CN108627390B CN108627390B CN201810246518.1A CN201810246518A CN108627390B CN 108627390 B CN108627390 B CN 108627390B CN 201810246518 A CN201810246518 A CN 201810246518A CN 108627390 B CN108627390 B CN 108627390B
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- fatigue machine
- distribution beam
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
Abstract
The invention relates to a pressure fatigue machine experiment technology, in particular to a multifunctional adjustable pressure fatigue machine connector device which comprises a fatigue machine pressure head, an ear plate, a cross beam, a step platform, a distribution beam and a backing plate. By adopting the structural arrangement, the problems of long time consumption, complex operation and installation and complex adjustment in the existing bridge fatigue loading experiment process are effectively solved.
Description
Technical Field
The invention relates to a pressure fatigue machine experiment technology, in particular to a multifunctional adjustable pressure fatigue machine connector device, and belongs to the technical field of static force loading or fatigue loading experiments of components.
Background
In recent years, with the rapid development of the fields of bridges, buildings and new materials, the fatigue failure phenomenon of engineering structures such as existing bridges and buildings becomes more and more obvious, and the fatigue property of the new material structure needs to be studied deeply, so that the fatigue problem of the structure and the material becomes a popular problem in the research of universities and scientific research institutes.
The fatigue loading testing machine is the most central experimental equipment for researching fatigue problems, and the fatigue machine pressure head usually needs to redesign a tool according to the specific requirements of the experiment when facing various different experimental components, and the tool between the fatigue machine pressure head and a test piece has great influence on the experimental effect and precision, so that the tool design in the fatigue experiment is particularly important.
The existing fatigue loading experiment, particularly the bridge high cycle fatigue loading experiment, is used for testing and analyzing the problems of the cracking characteristic, the bending rigidity and the ultimate bearing capacity of the bridge under the action of cyclic load. Generally, a fatigue machine pressure head is connected with a distribution beam, the distribution beam and a cushion block are erected on a test piece, and four-point bending fatigue loading is carried out. Because fatigue loading experiments are generally repeated experiments, fatigue loading experiments need to be carried out on a plurality of components, and the defect that the fatigue loading experiments are carried out by using one distribution beam is as follows: the time consumed is long, the performance of the fatigue loading machine is not fully utilized, the disassembly and the movement are complex, and the position of a loading interval cannot be changed by flexible movement or rotation. Therefore, an adjustable connector device of a pressure fatigue machine needs to be provided, so that the same fatigue loading testing machine can simultaneously carry out fatigue loading on two components, and the fatigue loading testing machine can flexibly change when a loading interval needs to be changed, thereby saving time and labor.
Disclosure of Invention
Aiming at the problems, the invention provides a multifunctional adjustable pressure fatigue machine connector device, which effectively solves the problems of long time consumption, complex operation and installation and complex adjustment in the existing bridge fatigue loading experiment process.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a tired quick-witted connector device of pressure with adjustable it is multi-functional, includes tired quick-witted pressure head, otic placode, crossbeam, ladder platform, distribution beam and backing plate, and tired quick-witted pressure head passes through the stud and articulates in the upper portion of otic placode, and on the top of crossbeam was fixed in through countersunk head bolt in the lower part of otic placode, the ladder platform was fixed in on the bottom of crossbeam, and distribution beam and ladder platform correspond the setting, and through hexagonal bolt fastening in the crossbeam bottom, the backing plate was fixed in the distribution beam bottom.
Furthermore, the distribution beam is provided with a channel, the channel of the distribution beam is embedded into the step platform at the bottom of the cross beam, and the distribution beam can slide and rotate through the channel.
Furthermore, the distribution beam is provided with a distribution beam screw hole matched with the hexagon bolt.
Further, the distribution beam is of a hollow structure, and a plurality of distribution beam lightening holes are respectively formed in two sides of the distribution beam.
Furthermore, a plurality of groups of beam screw holes which are arranged corresponding to the countersunk head bolts are arranged on the beam.
Further, the cross beam is of a hollow structure, a plurality of cross beam lightening holes are formed in the two sides of the cross beam respectively, and a reinforcing plate is vertically arranged in the middle of the cross beam.
Further, the base plate is fixed to the bottom of the distribution beam through a hexagon bolt, and base plate screw holes corresponding to the hexagon bolt are formed in the base plate.
Further, the step platform is welded on the bottom of the cross beam in a penetration welding mode.
The invention has the beneficial effects that:
the invention provides a multifunctional adjustable pressure fatigue machine connector device based on the existing fatigue loading experiment fatigue machine connector device, the number of test pieces loaded by the connector of the existing fatigue loading experiment fatigue machine is small, the movement operation is inconvenient, and the connector can not be adjusted.
Drawings
FIG. 1 is a perspective view of the overall structure of the present invention;
FIG. 2 is a plan view of the overall structure of the present invention;
FIG. 3 is a top view of FIG. 2;
fig. 4 is a side view of fig. 2.
1. A fatigue machine head; 2. an ear plate; 3. a stud; 4. a countersunk bolt; 5. a cross beam; 50. a screw hole; 51. a beam lightening hole; 52. a reinforcing plate; 6. a stair step; 7. a hexagon bolt; 8. a distribution beam; 80. a channel; 81. a distribution beam lightening hole; 9. a backing plate.
Detailed Description
The technical solution of the present invention is described below with reference to the accompanying drawings and examples.
As shown in fig. 1 to 4, the connector device of the multifunctional adjustable pressure fatigue machine comprises a fatigue machine pressure head 1, an ear plate 2, a cross beam 5, a step platform 6, a distribution beam 8 and a backing plate 9, wherein the fatigue machine pressure head 1 is hinged to the upper part of the ear plate 2 through a stud 3, the lower part of the ear plate 2 is fixed on the top of the cross beam 5 through a countersunk head bolt 4, the step platform 6 is fixed on the bottom of the cross beam 5, the distribution beam 8 is arranged corresponding to the step platform 6 and is fixed on the bottom of the cross beam 5 through a hexagonal bolt 7, and the backing plate 9 is fixed on the bottom of the distribution beam 8.
The fatigue machine pressure head 1 is hinged to the upper portion of the lug plate 2 through the stud 3, the lug plate 2 can rotate around the stud 3 at a small angle while vertical load of the fatigue machine is transmitted, different loading angles are matched, the cross beam 5 and the lug plate 2 are fixedly connected through the countersunk head bolt 4, load is transmitted to the cross beam 5, the step platform 6 is fixed to the bottom of the cross beam 5, the distribution beam 8 and the step platform 6 are correspondingly arranged and fixed to the bottom of the cross beam 5 through the hexagonal bolt 7, the base plate 9 is fixed to the bottom of the distribution beam 8, and four-point bending moment loading control on a test piece is completed, and the using method of the fatigue machine pressure head comprises the following steps: the device is connected with a fatigue machine pressure head 1, an upper cross beam 5 is connected, if two test pieces need to be loaded simultaneously, two distribution beams 8 are hung on the lower portion of the cross beam 5, after the loading mode loading position of the test piece is determined, the position of each distribution beam 8 is adjusted, the distribution beams are fixed through bolts after the adjustment is finished, a base plate 9 is installed on the lower portion of each distribution beam 8 according to the loading requirement, the device is placed on the test piece needing to be loaded, and the two test pieces are loaded simultaneously in a fatigue mode. If only one test piece needs to be subjected to fatigue loading, only one of the distribution beams 8 is perpendicular to the cross beam 5 and fixed in the middle of the cross beam 5 through a bolt, and the test piece is subjected to fatigue loading after the base plate 9 is added.
More specifically, the distribution beam 8 is provided with a channel 80, the channel 80 of the distribution beam 8 is embedded into the step 6 on the bottom of the cross beam 5, and the distribution beam 8 can slide and rotate through the channel 80. With this arrangement, the position of the distribution beam 8 can be easily adjusted.
More specifically, the distribution beam 8 is provided with a distribution beam screw hole matched with the hexagon bolt 7. By adopting the structure, the distribution beam 8 is fixed on the cross beam 5 through the arrangement of the hexagon bolts 7 and the distribution beam screw holes in a matching way.
More specifically, the distribution beam 8 has a hollow structure, and a plurality of distribution beam lightening holes 80 are respectively formed at both sides of the distribution beam. With such a structural arrangement, the weight of the distribution beam 8 is effectively reduced.
More specifically, the cross beam 5 is provided with a plurality of sets of cross beam screw holes 50 corresponding to the countersunk head bolts 4. By adopting the structure, the transverse beam 5 and the ear plate 2 can be fixedly connected by matching the countersunk head bolt 4 with the transverse beam screw hole 50.
More specifically, the beam 5 is a hollow structure, and has a plurality of beam lightening holes 51 on both sides and a reinforcing plate 52 vertically arranged in the middle. With such a structural arrangement, the weight of the cross beam 5 is effectively reduced, and the bearing capacity is effectively increased by the reinforcing plate 52.
More specifically, the backing plate 9 is fixed on the bottom of the distribution beam 8 through the hexagon bolts 7, and the backing plate 9 is provided with backing plate screw holes corresponding to the hexagon bolts 7. By adopting the structure, the base plate 9 is fixed on the bottom of the distribution beam 8 by the arrangement of the hexagon bolts 7 and the base plate screw holes in a matching way, and the base plate can be adjusted according to the deformation degree of a test piece.
More specifically, the step 6 is welded to the bottom of the cross member 5 by fusion welding.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and those skilled in the art can make various modifications without departing from the spirit and scope of the present invention.
Claims (7)
1. The utility model provides a tired quick-witted connector device of pressure with adjustable it is multi-functional which characterized in that: the fatigue machine pressure head comprises a fatigue machine pressure head (1), an ear plate (2), a cross beam (5), a step platform (6), a distribution beam (8) and a backing plate (9), wherein the fatigue machine pressure head (1) is hinged to the upper part of the ear plate (2) through a stud (3), the lower part of the ear plate (2) is fixed on the top of the cross beam (5) through a countersunk head bolt (4), the step platform (6) is fixed on the bottom of the cross beam (5), the distribution beam (8) is arranged corresponding to the step platform (6) and is fixed on the bottom of the cross beam (5) through a hexagonal bolt (7), and the backing plate (9) is fixed on the bottom of the distribution beam (8);
the distribution beam (8) is provided with a channel (80), the channel (80) of the distribution beam (8) is embedded into the step platform (6) on the bottom of the cross beam (5), and the distribution beam (8) can slide and rotate through the channel (80).
2. The connector device of the multifunctional adjustable pressure fatigue machine according to claim 1, wherein: and the distribution beam (8) is provided with a distribution beam screw hole matched with the hexagon bolt (7).
3. The connector device of the multifunctional adjustable pressure fatigue machine according to claim 1, wherein: the distribution beam (8) is of a hollow structure, and a plurality of distribution beam lightening holes (81) are respectively formed in two sides of the distribution beam.
4. The connector device of the multifunctional adjustable pressure fatigue machine according to claim 1, wherein: and a plurality of groups of beam screw holes (50) which correspond to the countersunk head bolts (4) are arranged on the beam (5).
5. The connector device of the multifunctional adjustable pressure fatigue machine according to claim 1, wherein: the beam (5) is of a hollow structure, a plurality of beam lightening holes (51) are respectively formed in two sides of the beam, and a reinforcing plate (52) is vertically arranged in the middle of the beam.
6. The connector device of the multifunctional adjustable pressure fatigue machine according to claim 1, wherein: the backing plate (9) is fixed on the bottom of the distribution beam (8) through the hexagon bolts (7), and backing plate screw holes which correspond to the hexagon bolts (7) are formed in the backing plate (9).
7. The connector device of the multifunctional adjustable pressure fatigue machine according to claim 1, wherein: the step platforms (6) are welded on the bottom of the cross beam (5) in a penetration welding mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810246518.1A CN108627390B (en) | 2018-03-23 | 2018-03-23 | Connector device of multifunctional adjustable pressure fatigue machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810246518.1A CN108627390B (en) | 2018-03-23 | 2018-03-23 | Connector device of multifunctional adjustable pressure fatigue machine |
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| CN108627390A CN108627390A (en) | 2018-10-09 |
| CN108627390B true CN108627390B (en) | 2020-04-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110174321A (en) * | 2019-05-24 | 2019-08-27 | 中南大学 | Multiple spot load sharing device |
| CN112326452B (en) * | 2020-10-27 | 2022-08-02 | 哈尔滨工程大学 | Bending moment experiment device for plate bar beam with uniformly distributed sensors |
| CN112326453B (en) * | 2020-10-27 | 2022-08-02 | 哈尔滨工程大学 | Can be along with lath beam bending moment test device of test piece length adjustment |
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| CN105300810A (en) * | 2015-11-27 | 2016-02-03 | 武汉钢铁(集团)公司 | Three-point bending test device with laser centering device |
| CN105716965A (en) * | 2016-03-29 | 2016-06-29 | 同济大学 | Device for evaluating fatigue performance of concrete pavement on orthotropic steel bridge deck |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2572389Y (en) * | 2002-10-09 | 2003-09-10 | 同济大学 | Train running imitated structure fatigue test loading-frame |
| CN201000411Y (en) * | 2006-09-13 | 2008-01-02 | 同济大学 | Static force loading device for tool type concrete beam |
| CN106769427A (en) * | 2016-12-27 | 2017-05-31 | 浙江理工大学 | A kind of hydraulic chuck of electo hydraulic servocontrolled fatigue testing machine |
| CN206710195U (en) * | 2017-03-29 | 2017-12-05 | 武汉理工大学 | A kind of fatigue loading device for prestressed concrete beam four-point bending |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300810A (en) * | 2015-11-27 | 2016-02-03 | 武汉钢铁(集团)公司 | Three-point bending test device with laser centering device |
| CN105716965A (en) * | 2016-03-29 | 2016-06-29 | 同济大学 | Device for evaluating fatigue performance of concrete pavement on orthotropic steel bridge deck |
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