CN111829739A - Section beam bolt faying face rigidity test analogue means - Google Patents
Section beam bolt faying face rigidity test analogue means Download PDFInfo
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- CN111829739A CN111829739A CN202010725343.XA CN202010725343A CN111829739A CN 111829739 A CN111829739 A CN 111829739A CN 202010725343 A CN202010725343 A CN 202010725343A CN 111829739 A CN111829739 A CN 111829739A
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- 238000012360 testing method Methods 0.000 title claims abstract description 54
- 208000032443 Masked facies Diseases 0.000 title claims description 3
- 238000004088 simulation Methods 0.000 claims abstract description 65
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 56
- 239000010959 steel Substances 0.000 claims abstract description 56
- 238000009434 installation Methods 0.000 abstract description 14
- 238000013461 design Methods 0.000 abstract description 2
- 238000009864 tensile test Methods 0.000 description 11
- 230000003014 reinforcing effect Effects 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
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- G—PHYSICS
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
- G01M5/005—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems
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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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
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- G01N2203/0019—Compressive
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
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Abstract
The invention is suitable for the field of machine tool equipment design tests, and provides a rigidity test simulation device for a bolt joint surface of a sectional beam. According to the rigidity test simulation device for the bolt joint surface of the segmented beam, provided by the invention, the upper plate, the lower plate, the first steel plate simulation piece, the second steel plate simulation piece, the nut and the bolt are arranged, the upper plate and the lower plate are hinged at one end and connected with the testing machine at the other end, and the first steel plate simulation piece, the second steel plate simulation piece, the nut and the bolt are positioned between the hinged ends of the upper plate and the lower plate and the connecting end of the testing machine, so that the installation space of the bolt, the nut and related sensors is more spacious, the installation is more convenient, and the interference with the connecting end of.
Description
Technical Field
The invention belongs to the field of machine tool equipment design tests, and particularly relates to a device for simulating a rigidity test of a sectional beam bolt joint surface.
Background
Large beams are often used in mechanical products, especially in machine tools. The cross beam with larger length is generally manufactured by subsection processing and connected by adopting bolts, and a plurality of high-strength bolts are generally connected and pre-tightened on the bolt connection joint surface (namely the cross beam joint) of the cross beam. The lowest tie bolt at the beam joint is most tensioned and the upper beam joint interface is most stressed. The deformation of the joint surface can be well reduced by adopting methods of increasing the area of the joint surface, improving the hardness of the joint surface and the like on the upper joint surface, but because the lower part of the joint surface of the cross beam is connected by high-strength bolts, and the bolts are in tension, the rigidity of the part to be improved can only depend on the bolts, so the joint of the bolts on the lower part is the key of the rigidity of the cross beam and even the rigidity of the whole cross beam, and the influence of the rigidity of the bolt joint part on the lower part of the cross beam on the rigidity of.
There are many factors that affect the rigidity of the beam joint (i.e., the beam joint), and researchers generally use simulation tests to study the influence factors on the rigidity of the beam joint at present. The ideal simulation test model is suitable for connecting two steel plates by adopting a high-strength bolt, measuring real-time pressure by utilizing a pressure sensor, measuring the deformation of the bolt by adopting a strain gauge, simulating the deformation of a machine tool under different stress conditions by measuring the deformation of the bolt and a contact surface under the conditions of different contact areas, different surface roughness, different pressures and the like and simulating by computer software so as to find a method for improving the rigidity of the beam. The test device of present laboratory mainly adopts the cylinder bar, bores a round hole in the middle of two cylinder bars, and bolted connection is used to two cylinder bars, and there is tensile pole top drum upper portion and below drum lower part, and the bolt is very troublesome in the inside of two drums, the installation of bottom, if leave the mounting hole then influence experimental effect, if do not leave the mounting hole bolt just unable installation. While the strain gage and pressure sensor are mounted on the bolt, their wires are cumbersome to thread through the cylindrical bar stock.
Disclosure of Invention
The invention aims to provide a device for simulating a rigidity test of a sectional beam bolt joint surface, and aims to solve or at least improve the technical problem that the existing test device is inconvenient to install bolts when the rigidity test of the sectional beam bolt joint surface is simulated to a certain extent.
In order to achieve the above object, the present invention adopts a technical solution that provides a device for simulating a rigidity test of a bolt joint surface of a segmented beam, comprising:
the upper plate is provided with an upper plate first end and an upper plate second end opposite to the upper plate first end, and the upper plate first end is provided with an upper plate bearing part; the upper plate is provided with an upper through hole;
the lower plate is provided with a first end of the lower plate and a second end of the lower plate opposite to the first end of the lower plate, the first end of the lower plate is provided with a lower plate bearing part, the second end of the lower plate is hinged with the second end of the upper plate, and the lower plate is provided with a lower through hole;
the first steel plate simulation piece is arranged on the upper plate and is provided with a first combination surface and a first through hole corresponding to the upper through hole, and the first combination surface is positioned at the lower part of the upper plate;
the second steel plate simulation piece is arranged on the lower plate and is provided with a second joint surface used for being abutted against the first joint surface and a second through hole corresponding to the lower through hole, and the second joint surface is positioned at the upper part of the lower plate;
a nut; and
and the bolt penetrates through the upper through hole, the first through hole, the second through hole and the lower through hole and then is in threaded connection with the nut, so that the first combining surface is abutted to the second combining surface.
Furthermore, the first steel plate simulation piece is detachably connected with the upper plate, and the second steel plate simulation piece is detachably connected with the lower plate.
Further, first steel sheet simulation piece include first cylinder and with the second cylinder that first cylinder links to each other, first via hole runs through first cylinder with the second cylinder, the cylindrical external diameter of second is greater than first cylinder's external diameter, go up the through-hole for with first cylinder interference fit's round hole structure, first binding face does the second cylinder is kept away from the terminal surface of first cylinder one side.
Further, the second steel plate simulation piece comprises a third cylinder and a fourth cylinder connected with the third cylinder, the second via hole penetrates through the third cylinder and the fourth cylinder, the outer diameter of the fourth cylinder is larger than that of the third cylinder, the lower through hole is of a round hole structure in interference fit with the third cylinder, and the second joint surface is an end surface of the fourth cylinder, which is far away from one side of the third cylinder.
Further, the upper plate bearing portion includes an upper bearing block, and the lower plate bearing portion includes a lower bearing block.
Furthermore, the upper bearing block is provided with a socket for inserting the lower bearing block.
Further, the first steel plate simulation member is disposed at a middle portion between the first end of the upper plate and the second end of the upper plate, and the second steel plate simulation member is disposed at a middle portion between the first end of the lower plate and the second end of the lower plate.
Furthermore, a hinge shaft is fixedly arranged on the lower plate, and a hinge hole which is in running fit with the hinge shaft is arranged on the upper plate.
Compared with the prior art, the rigidity test simulation device for the bolt joint surface of the segmented beam, provided by the invention, has the advantages that the upper plate, the lower plate, the first steel plate simulation piece, the second steel plate simulation piece, the nut and the bolt are arranged, the upper plate and the lower plate are hinged at one end and connected with the testing machine at the other end, and the first steel plate simulation piece, the second steel plate simulation piece, the nut and the bolt are positioned between the hinged ends of the upper plate and the lower plate and the connecting end of the testing machine, so that the installation space of the bolt, the nut and the related sensor is more spacious, the installation is more convenient, and the installation is.
Drawings
Fig. 1 is one of schematic diagrams of a device for simulating a rigidity test of a joint surface of a segmented beam bolt according to an embodiment of the present invention;
fig. 2 is a second schematic view of the sectional beam bolt joint surface rigidity test simulation apparatus provided in the embodiment of the present invention in application;
FIG. 3 is a schematic view of the upper plate of FIG. 1 mated with a first steel plate simulator;
FIG. 4 is a cross-sectional view taken at A in FIG. 3;
FIG. 5 is one of the schematic views of the lower plate of FIG. 1 mated with a second steel plate simulator (with hinge shaft removed);
FIG. 6 is a second schematic view of the lower plate of FIG. 1 mated with a second steel plate simulator (with hinge shaft removed);
fig. 7 is a sectional view at B in fig. 5.
In the figure: 100. an upper plate; 110. an upper plate bearing portion; 120. reaming; 130. the upper plate flanging is of a reinforcing structure; 140. a first sleeve; 200. a lower plate; 210. a lower plate bearing part; 220. a hinge shaft; 230. a lower plate flanging reinforcing structure; 240. a second sleeve; 300. a first steel plate simulation member; 310. a first cylinder; 320. a second cylinder; 330. a first bonding surface; 400. a second steel plate simulation piece; 410. a third cylinder; 420. a fourth cylinder; 430. a second bonding surface; 500. a nut; 600. a bolt; 700. a pressure sensor.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that the terms "length," "width," "height," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," "tail," and the like, indicate orientations or positional relationships that are based on the orientations or positional relationships illustrated in the drawings, are used for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the invention.
It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Further, "plurality" or "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 to 7, an embodiment of the simulation apparatus for a rigidity test of a bolt joint surface of a segmented beam according to the present invention will now be described. The device for simulating the rigidity test of the sectional beam bolt joint surface is used for simulating the working condition of the sectional beam bolt joint surface and researching the rigidity influence factors of the joint part of the test beam. The rigidity test simulation device for the joint surface of the sectional beam bolt comprises an upper plate 100, a lower plate 200, a first steel plate simulation piece 300, a second steel plate simulation piece 400, a nut 500 and a bolt 600.
The upper plate 100 has an upper plate first end and an upper plate second end opposite to the upper plate first end, the upper plate first end is provided with an upper plate bearing portion 110, and the upper plate 100 is further provided with an upper through hole. The lower plate 200 has a first end and a second end opposite to the first end, the first end is provided with a lower plate bearing portion 210, the second end is hinged to the second end of the upper plate, and the lower plate 200 is further provided with a lower through hole.
The first steel plate simulator 300 is installed on the upper plate 100, the first steel plate simulator 300 is provided with a first combining surface 330 and a first through hole corresponding to the upper through hole, that is, after the first steel plate simulator 300 is installed on the upper plate 100, the upper through hole and the first through hole are correspondingly arranged, and the bolt 600 can simultaneously pass through the upper through hole and the first through hole. The first coupling surface 330 is located at a lower portion of the upper plate 100, that is, the first coupling surface 330 is disposed to protrude from a lower plate surface of the upper plate 100.
The second steel plate simulator 400 is installed on the lower plate 200, and the second steel plate simulator 400 is provided with a second through hole for abutting against the second joint surface 430 with the first joint surface 330 and corresponding to the lower through hole, that is, after the second steel plate simulator 400 is installed on the lower plate 200, the lower through hole and the second through hole are correspondingly arranged, and the bolt 600 can simultaneously pass through the lower through hole and the second through hole. The second bonding surface 430 is located on the upper portion of the lower plate 200, that is, the second bonding surface 430 is protruded from the upper plate surface of the lower plate 200. Thus, in the simulation test, when the upper plate 100 and the lower plate 200 are arranged in parallel, the lower plate surface of the upper plate 100 and the upper plate surface of the lower plate 200 are not in direct contact, and the first bonding surface 330 and the second bonding surface 430 are in direct contact as the two simulated beam bonding surfaces.
The screw portion of the bolt 600 penetrates through the upper through hole, the first through hole, the second through hole and the lower through hole and then is in threaded connection with the nut 500, the first combining surface 330 and the second combining surface 430 can be abutted by screwing the bolt 600 and the nut 500, and therefore the working condition of the segmented beam bolt combining surface under the high-strength bolt threaded connection can be simulated.
In the rigidity simulation test, the first joining surface 330 and the second joining surface 430 are first brought into contact with each other by tightening the bolt 600 and the nut 500, and the upper plate 100 and the lower plate 200 are now arranged in parallel. At this time, corresponding sensors may be additionally installed on the simulation apparatus for the rigidity test of the joint surface of the segmented beam bolt provided in the embodiment of the present invention, for example: a pressure sensor 700 is additionally installed between the nut 600 and the upper plate 100 (or the lower plate 200); a displacement sensor is additionally arranged between the upper plate bearing part 110 and the lower plate bearing part 210 (not shown), a base body of the displacement sensor can be fixed on the lower plate bearing part 210 during the addition, and a sliding head of the displacement sensor can be fixed on the upper plate bearing part 110 during the addition, so as to detect the relative displacement of the upper plate 100 and the lower plate 200 during the stretching; a strain gage (not shown) is loaded on the bolt 500. The kind and function of these corresponding sensors are consistent with the prior art and will not be described in detail herein.
Then, two power output ends of a tensile testing machine (of course, other testing machines) can be respectively connected with the upper plate pressure-bearing part 110 and the lower plate pressure-bearing part 110, for example, the upper power output end of the tensile testing machine is in threaded connection with the lower plate pressure-bearing part 210, and the lower power output end of the tensile testing machine is in threaded connection with the upper plate pressure-bearing part 110; therefore, when the tensile testing machine is stretched, the lower plate pressing part 210 drives the lower plate 200 to move upwards, the upper plate pressing part 110 drives the upper plate 100 to move downwards, the upper plate 100 and the lower plate 200 are hinged at one end, so that the upper plate 100 and the lower plate 200 have a tendency of rotating and separating, specifically, the first combination surface 330 and the second combination surface 430 where the bolt 500 is screwed can be regarded as forward stretching simulating the beam combination surface at the first combination surface 330, the second combination surface 430 and the spiral 500 (due to the fact that the size of the whole device is not large, the non-forward stretching force of the first combination surface 330 and the second combination surface 430 can be ignored, and the simulation working condition is closer to the true stretching working condition at the bolt connection position at the lower end of the beam combination portion), so as to form the forward stretching working condition simulating the beam combination surface.
It can be seen that, in the simulation apparatus for testing rigidity of a bolt joint surface of a segmented beam provided by the embodiment of the present invention, the hinged ends of the upper plate pressure-bearing portion 110 and the upper plate 100 are respectively located at the two ends of the upper plate 100, the hinged ends of the lower plate pressure-bearing portion 210 and the lower plate 200 are respectively located at the two ends of the lower plate 200, the bolt 500 is located between the hinged ends of the upper plate pressure-bearing portion 110 and the upper plate 100, and is also located between the hinged ends of the lower plate pressure-bearing portion 210 and the lower plate 200, so that the loading portion and the bolt 500 portion of the tensile testing machine are separated, the space is sufficiently empty, and the connection between the upper plate pressure-bearing portion 110 and the lower plate pressure-bearing portion 210 and; meanwhile, the bolt head and the nut 600 of the bolt 500 are both positioned on the outer sides of the upper plate 100 and the lower plate 200, so that the installation of the bolt is convenient, and the sensors are basically exposed (positioned on the outer sides of the upper plate 100 and the lower plate 200) for installation, so that the wiring is convenient.
Compared with the prior art, the rigidity test simulation device for the bolt joint surface of the sectional beam is characterized in that the upper plate, the lower plate, the first steel plate simulation piece, the second steel plate simulation piece, the nut and the bolt are arranged, the upper plate and the lower plate are hinged at one end and connected with the testing machine at the other end, and the first steel plate simulation piece, the second steel plate simulation piece, the nut and the bolt are arranged between the hinged ends of the upper plate and the lower plate and the connecting end of the testing machine, so that the installation space of the bolt, the nut and the related sensor is more spacious, the installation is more convenient, and the installation is not interfered with the connecting end of the.
Referring to fig. 1 to 7, as a specific embodiment of the rigidity test simulation device for the bolt joint surface of the segmented beam provided by the present invention, a first steel plate simulation member 300 is detachably connected to the upper plate 100, and a second steel plate simulation member 200 is detachably connected to the lower plate 200. That is to say, the segmented beam bolt joint surface rigidity test simulation device provided by the embodiment of the present invention includes one upper plate 100 and one lower plate 200, but one upper plate 100 may correspond to a plurality of first steel plate simulators 300, one lower plate 200 may correspond to a plurality of second steel plate simulators 200, and the first joint surface 330 and the second joint surface 430 in different first steel plate simulators 300 and second steel plate simulators 200 have different roughness, area and other factors, so as to simulate the influence of different factors on the rigidity of the simulated beam joint.
Referring to fig. 3 and 4, as an embodiment of the simulation apparatus for a rigidity test of a joint surface of a segmented beam bolt provided by the present invention, a first steel plate simulation member 300 includes a first cylinder 310 and a second cylinder 320 connected to the first cylinder 310, and an outer diameter of the second cylinder 320 is larger than an outer diameter of the first cylinder 310, that is, the first steel plate simulation member 300 is a structure similar to a stepped shaft. The first via hole penetrates the first cylinder 310 and the second cylinder 320 to facilitate the penetration of the bolt 500. The upper through hole is a circular hole structure in interference fit with the first cylinder 310, and the first combining surface 330 is an end surface of the second cylinder 320 far away from one side of the first cylinder 310. Of course, the first cylinder 310 should not protrude from the upper plate surface of the upper plate 100 in order to avoid affecting the installation of the bolt 500 and the nut 600. The first steel plate simulator 300 is detachably connected to the upper plate 100 by interference fit of the first cylinder 310 and the upper through hole.
Referring to fig. 5 to 7, as an embodiment of the simulation apparatus for a rigidity test of a joint surface of a segmented beam bolt provided by the present invention, the second steel plate simulation member 400 includes a third cylinder 410 and a fourth cylinder 420 connected to the third cylinder 410, and an outer diameter of the fourth cylinder 420 is larger than an outer diameter of the third cylinder 410, that is, the second steel plate simulation member 400 is a structure similar to a stepped shaft. A second via hole penetrates the third cylinder 410 and the fourth cylinder 420 to facilitate the penetration of the bolt 500. The lower through hole is a circular hole structure in interference fit with the third cylinder 410, and the second joint surface 430 is an end surface of the fourth cylinder 420 far away from the third cylinder 410. Of course, the third cylinder 410 should not protrude from the lower plate surface of the lower plate 200 in order to avoid affecting the installation of the bolt 500 and the nut 600. The detachable connection of the second steel plate simulator 400 and the lower plate 200 is achieved by the interference fit connection of the third cylinder 410 and the lower through hole.
Referring to fig. 1 to 7, as a specific embodiment of the rigidity test simulation device for the joint surface of the sectional beam bolt provided by the present invention, the upper plate bearing portion 110 includes an upper bearing block, and the lower plate bearing portion includes a lower bearing block. The upper bearing block is connected to the upper plate 100 and the lower bearing block is connected to the lower plate 200. The upper bearing block can be connected with the lower power output end of the tensile testing machine through welding or threaded connection, and the lower bearing block can be connected with the upper power output end of the tensile testing machine through welding or threaded connection.
Referring to fig. 1 to 7, as a specific embodiment of the device for simulating the rigidity test of the joint surface of the segmented beam bolt provided by the present invention, a socket into which the lower bearing block is inserted is provided on the upper bearing block. The upper plate 100 and the lower plate 200 are substantially equal in length direction, but the lower plate 200 is narrower than the upper plate 100, and the lower bearing block is narrower than the outer edge of the upper bearing block, and when the upper plate 100 and the lower plate 200 are arranged in parallel, the lower bearing block is inserted into the socket of the upper bearing block, so that the structure of the sectional beam bolt joint surface rigidity test simulation device provided by the embodiment of the invention is more compact.
Referring to fig. 1 to 7, as a specific embodiment of the device for simulating a rigidity test of a bolt joint surface of a sectional beam according to the present invention, a first steel plate simulator 300 is disposed at a middle portion between a first end of an upper plate and a second end of the upper plate, and a second steel plate simulator 400 is disposed at a middle portion between the first end of the lower plate and the second end of the lower plate, that is, a bolt 500 is disposed at a middle portion between an upper plate pressure-bearing portion 110 and an upper plate hinge end, and is also disposed at a middle portion between a lower plate pressure-bearing portion 210 and a lower plate hinge end. Therefore, in fact, when the tensile testing machine is loaded, the upper plate bearing part 110 (or the lower plate bearing part 210) and the bolt 500 form a lever mechanism with the upper plate hinged end (or the lower plate hinged end), and the bolt 500 needs to match 2 times of acting force of the tensile testing machine to enable the upper plate 100 and the lower plate 200 not to be pulled apart, so that the sectional beam bolt joint surface rigidity test simulation device provided by the invention actually increases the output power of the tensile testing machine invisibly, and therefore the sectional beam bolt joint surface rigidity test simulation device provided by the invention is suitable for being used in occasions with smaller rated output and larger pressure required by experiments of the tensile testing machine.
Referring to fig. 1 to 7, as a specific embodiment of the device for simulating the rigidity of the joint surface of the sectional beam bolt provided by the present invention, a hinge shaft 220 is fixedly disposed on the lower plate 200, and a hinge hole 120 rotatably engaged with the hinge shaft 220 is disposed on the upper plate 100, so as to realize the hinge joint between the upper plate 100 and the lower plate 200.
Referring to fig. 1 to 7, as a specific embodiment of the device for simulating a rigidity test of a joint surface of a segmented beam bolt provided by the present invention, two first sleeves 140 are disposed at a second end of the upper plate at intervals along a width direction of the upper plate 100, the hinge hole 120 is an inner hole of the first sleeve 140, a second sleeve 240 is disposed at a second end of the lower plate, and the hinge shaft 220 is inserted into the second sleeve 240 and fixedly connected to the second sleeve 240. The first sleeve 140 is located at the lower portion of the lower plate surface of the upper plate 100, the second sleeve 240 is located at the upper portion of the upper plate surface of the lower plate 200, and the second sleeve 240 is located between the two first sleeves 140, so that while the upper plate 100 and the lower plate 200 are arranged in parallel, a gap is formed between the upper plate 100 and the lower plate 200 to reserve a space for the first combining surface 330 and the second combining surface 430 to contact.
Referring to fig. 1 to 7, as a specific embodiment of the device for simulating a rigidity test of a bolt joint surface of a sectional beam according to the present invention, upper plate flange reinforcing structures 130 are disposed upward on two sides of the upper plate 100 in the width direction, and lower plate flange reinforcing structures 230 are disposed downward on two sides of the lower plate 200 in the width direction. The upper panel flange reinforcing structure 130 can reinforce the rigidity and strength of the upper panel 100, and the lower panel flange reinforcing structure 230 can reinforce the rigidity and strength of the lower panel 200.
As a specific embodiment of the simulation apparatus for a rigidity test of a bolt joint surface of a segmented beam according to the present invention, the upper plate 100 is cast and integrally formed or machined, and the lower plate 200 is cast and integrally formed or machined.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. Section beam bolt faying face rigidity test analogue means, its characterized in that includes:
the upper plate is provided with an upper plate first end and an upper plate second end opposite to the upper plate first end, and the upper plate first end is provided with an upper plate bearing part; the upper plate is provided with an upper through hole;
the lower plate is provided with a first end of the lower plate and a second end of the lower plate opposite to the first end of the lower plate, the first end of the lower plate is provided with a lower plate bearing part, the second end of the lower plate is hinged with the second end of the upper plate, and the lower plate is provided with a lower through hole;
the first steel plate simulation piece is arranged on the upper plate and is provided with a first combination surface and a first through hole corresponding to the upper through hole, and the first combination surface is positioned at the lower part of the upper plate;
the second steel plate simulation piece is arranged on the lower plate and is provided with a second joint surface used for being abutted against the first joint surface and a second through hole corresponding to the lower through hole, and the second joint surface is positioned at the upper part of the lower plate;
a nut; and
and the bolt penetrates through the upper through hole, the first through hole, the second through hole and the lower through hole and then is in threaded connection with the nut, so that the first combining surface is abutted to the second combining surface.
2. The sectional beam bolt joint surface rigidity test simulation device as claimed in claim 1, wherein the first steel plate simulation member is detachably connected with the upper plate, and the second steel plate simulation member is detachably connected with the lower plate.
3. The device for simulating the rigidity test of the bolt joint surface of the segmented beam as claimed in claim 2, wherein the first steel plate simulator comprises a first cylinder and a second cylinder connected with the first cylinder, the first through hole penetrates through the first cylinder and the second cylinder, the outer diameter of the second cylinder is larger than that of the first cylinder, the upper through hole is a circular hole structure in interference fit with the first cylinder, and the first joint surface is an end surface of the second cylinder on one side far away from the first cylinder.
4. The rigidity test simulation device for the joint surface of the segmented beam bolt as claimed in claim 2, wherein the second steel plate simulation piece comprises a third cylinder and a fourth cylinder connected with the third cylinder, the second through hole penetrates through the third cylinder and the fourth cylinder, the outer diameter of the fourth cylinder is larger than that of the third cylinder, the lower through hole is of a circular hole structure in interference fit with the third cylinder, and the second joint surface is an end surface of the fourth cylinder on one side far away from the third cylinder.
5. The sectional beam bolt joint surface rigidity test simulation device as claimed in claim 1, wherein the upper plate bearing portion includes an upper bearing block, and the lower plate bearing portion includes a lower bearing block.
6. The sectional beam bolt joint surface rigidity test simulation device as claimed in claim 5, wherein the upper bearing block is provided with a socket into which the lower bearing block is inserted.
7. The sectional beam bolt joint surface rigidity test simulation device according to any one of claims 1 to 6, wherein the first steel plate simulation member is provided at a middle portion between the first end of the upper plate and the second end of the upper plate, and the second steel plate simulation member is provided at a middle portion between the first end of the lower plate and the second end of the lower plate.
8. The device for simulating the rigidity test of the bolt combination surface of the sectional beam as claimed in any one of claims 1 to 6, wherein a hinge shaft is fixedly arranged on the lower plate, and a hinge hole which is rotatably matched with the hinge shaft is arranged on the upper plate.
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