CN109580392B - Hydraulic pressure shear test machine - Google Patents
Hydraulic pressure shear test machine Download PDFInfo
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- CN109580392B CN109580392B CN201910075112.6A CN201910075112A CN109580392B CN 109580392 B CN109580392 B CN 109580392B CN 201910075112 A CN201910075112 A CN 201910075112A CN 109580392 B CN109580392 B CN 109580392B
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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
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
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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
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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
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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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
- G01N2203/0014—Type of force applied
- G01N2203/0026—Combination of several types of applied 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
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a hydraulic pressure shear testing machine, wherein an upper pressure plate pressing plate with a rotation axis extending along the up-down direction is rotatably assembled on an upper pressure plate, a lower pressure plate pressing plate with a rotation axis extending along the up-down direction is rotatably assembled on a lower pressure plate, a shear plate upper pressure plate for being matched with the upper pressure plate pressing plate to conduct a shear test on an upper side rubber support is rotatably arranged at the upper end of a shear plate, a shear plate lower pressure plate for being matched with the lower pressure plate pressing plate to conduct a shear test on a lower side rubber support is rotatably arranged at the lower end of the shear plate, the upper pressure plate, the shear plate lower pressure plate and the lower pressure plate pressing plate are coaxially arranged, and the upper pressure plate pressing plate, the shear plate lower pressure plate pressing plate and the lower pressure plate pressing plate are provided with a first station and a second station with rotation angles different by 180 degrees. The invention provides a hydraulic pressure shear testing machine capable of carrying out bidirectional loading on a rubber support in the horizontal direction.
Description
Technical Field
The invention relates to a hydraulic pressure shear testing machine in the field of testing machines.
Background
The compression-shear testing machine is mainly used for testing axial and radial compression-resistance, shear-resistance and corner-turning mechanical tests of the rubber support under the composite conditions of compression resistance and shear resistance of various bridge plate-type and basin-type rubber supports. The rubber support can be subjected to mechanical performance tests such as compression modulus, shear modulus, allowable shear angle, friction coefficient, ultimate compression strength and the like.
The existing hydraulic pressure shear testing machine is shown in fig. 1, the pressure shear testing machine comprises a vertical loading mechanism and a horizontal loading mechanism, the vertical loading mechanism comprises a vertical loading support, the vertical loading support comprises a base, a stand column 5 and a cross beam 4, a vertical loading cylinder 6 is arranged on the base, the horizontal loading mechanism comprises a guide rail 1 arranged along the left-right direction, a loading trolley 2 is assembled in a guiding movement manner on the guide rail, a horizontal loading cylinder is arranged on the loading trolley 2, and a shear plate 9 is connected to the horizontal loading cylinder.
When the shearing resistance test is required to be carried out on the rubber supports, the two rubber supports 8 are respectively arranged between the upper plate surface and the lower plate surface of the shearing plate 9 and the cross beam 4 and the lower pressing plate 7, vertical loading force is applied to the rubber supports by the vertical loading cylinder to simulate bridge weight, the counterforce part 3 of the loading small roof is propped against the cross beam and takes the cross beam as a counterforce frame, tension is applied to the shearing plate by the horizontal loading cylinder, and the shearing plate shears the two rubber supports on the upper side and the lower side so as to simulate shearing acting force of the bridge born by the rubber supports in the earthquake environment. The shearing resistance of rubber support is tested like this, and current this kind of hydraulic pressure shearing test machine exists the problem that lies in: because the loading trolley takes the vertical loading support as a reaction frame, the loading trolley can only apply a force in one direction to the rubber support, namely the shearing plate can only apply a shearing force in one direction to the rubber support, the shear force is far different from the bridge shearing force applied to the rubber support in a real earthquake environment, the bridge can shake back and forth in one direction in the real earthquake environment, the shearing force to the rubber support also acts back and forth in one direction, the deformation of the rubber support is not only in one direction, and the compression shear test machine in the prior art can only realize the shearing test of the deformation of the rubber support in one direction and is not in line with the real stress condition of the rubber support.
Disclosure of Invention
The invention aims to provide a hydraulic pressure shear testing machine capable of carrying out bidirectional loading on a rubber support in the horizontal direction.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the utility model provides a hydraulic pressure shear test machine, includes vertical loading mechanism and horizontal loading mechanism, and vertical loading mechanism includes vertical loading support, top board and holding down plate, and horizontal loading mechanism includes along the guide rail that left and right sides orientation extends, and the direction is moved on the guide rail and is equipped with the loading dolly, and the loading dolly have be used for with vertical loading support top support matched with counter force portion, be provided with horizontal force loading jar on the loading dolly, be connected with the shear plate that is located between top board and the holding down plate on the horizontal force loading jar, the rotation is equipped with the top board pressure disk that the axis of rotation extends along the upper and lower direction on the top board, and the rotation is equipped with the holding down plate pressure disk that the axis of rotation extends along the upper and lower direction on the holding down plate, and the upper end rotation of shear plate is provided with and is used for carrying out the shear plate upper pressure disk that cuts test with the rubber support of top board pressure disk cooperation in order to carry out shear test with the holding down plate, and top board, and the lower pressure disk, shear plate upper pressure disk, shear plate, lower and holding down plate pressure disk have a 180 degrees of difference station.
A first shear plate fixing bolt for fixing the upper pressure plate of the shear plate to the first station and the second station is arranged between the upper pressure plate of the shear plate and the shear plate; and a second shear plate fixing bolt for fixing the shear plate to the first station and the second station is arranged between the lower pressure plate of the shear plate and the shear plate.
An upper pressure plate mounting groove which extends to the outer peripheral surface of the upper pressure plate along the radial direction of the upper pressure plate is arranged on the lower end surface of the upper pressure plate, two upper pressure plate mounting grooves which are distributed at 180 degrees and are used for being independently matched with the upper pressure plate mounting groove are arranged on the lower end surface of the upper pressure plate, the upper pressure plate and the pressing plate are hinged with an upper limit rod which is positioned in the upper pressure plate mounting groove and the corresponding upper pressure plate mounting groove so as to limit the upper pressure plate and the pressing plate to the corresponding station, and the hinge axis of the upper limit rod is vertical to the up-down direction.
An upper limit rod clamping groove used for clamping the upper limit rod after the upper limit rod is rotated out of the upper pressure plate mounting groove is formed in the upper end face of the upper pressure plate of the shear plate, and an upper limit rod handheld force application part used for handheld force application is arranged in the middle of the upper limit rod.
The upper end face of the lower pressure plate pressing plate is provided with a lower pressure plate pressing plate mounting groove which radially extends to the outer peripheral face of the lower pressure plate pressing plate along the lower pressure plate pressing plate, the upper end face of the lower pressure plate is provided with two lower pressure plate mounting grooves which are distributed at 180 degrees and are used for being matched with the lower pressure plate pressing plate mounting groove singly, the lower pressure plate pressing plate is hinged with a lower limit rod which is positioned in the lower pressure plate pressing plate mounting groove and the corresponding lower pressure plate mounting groove so as to limit the lower pressure plate pressing plate to a corresponding station, and the hinge axis of the lower limit rod is perpendicular to the up-down direction.
The lower end face of the lower pressure plate of the shear plate is provided with a lower limit rod clamping groove used for clamping the lower limit rod after the lower limit rod is rotated out of the lower pressure plate mounting groove, and the middle part of the lower limit rod is provided with a lower limit rod handheld force application part used for handheld force application.
The beneficial effects of the invention are as follows: when the hydraulic pressure shear testing machine is used, rubber supports are respectively arranged between an upper pressure plate and an upper shear plate pressure plate, and between a lower shear plate pressure plate and a lower pressure plate, when the hydraulic pressure shear testing machine is used for the first time, the upper pressure plate, the upper shear plate pressure plate, the lower shear plate pressure plate and the lower pressure plate are positioned at a first station, a vertical loading mechanism applies a vertical loading force to the rubber supports to simulate the weight of a bridge, a horizontal force loading cylinder pulls the shear plate, a counterforce part of a loading trolley is propped against a vertical loading support, the vertical loading support forms a counterforce frame of the loading trolley, the shear plate applies a horizontal direction shearing force in one direction to the corresponding rubber supports with the upper shear plate pressure plate and the lower shear plate pressure plate, the shear test on one direction of the rubber support is realized, after the test is finished, the horizontal force loading cylinder is unloaded, the upper pressing plate, the shearing plate upper pressing plate, the shearing plate lower pressing plate and the lower pressing plate are rotated to the second station, the rubber support rotates 180 degrees under the driving of the upper pressing plate, the shearing plate upper pressing plate, the shearing plate lower pressing plate and the lower pressing plate, and the pulling force is applied to the shearing plate through the horizontal force loading cylinder, and the two tests show that the loading direction of the horizontal force loading cylinder is not changed, but because the rubber support rotates 180 degrees, the directions of the shearing forces born by the rubber support are opposite, the bidirectional loading on the horizontal direction of the rubber support is realized, and the shear test is closer to a real earthquake environment.
Drawings
FIG. 1 is a schematic diagram of a background art structure of the present invention;
FIG. 2 is a schematic diagram of the structure of one embodiment of the present invention;
FIG. 3 is a schematic diagram showing the cooperation of the lower pressure plate and the rubber support in the invention;
FIG. 4 is a schematic illustration of the cooperation of an upper platen, a shear plate upper platen, a shear plate lower platen and a lower platen in the present invention;
fig. 5 is a schematic structural view of a horizontal displacement buffer mechanism in the present invention.
Detailed Description
An embodiment of a hydraulic pressure shear testing machine is shown in fig. 2 to 5: including vertical loading mechanism and horizontal loading mechanism, vertical loading support 23 of vertical loading mechanism, vertical loading support 23 include stand 6 and set up crossbeam 5 on the stand, and the height of crossbeam 5 can be adjusted, and the lower extreme of crossbeam is provided with top board 14, and the downside of top board 14 is provided with holding down plate 26, is provided with clamp plate limiting roller 25 between the left and right sides of holding down plate 26 and the vertical loading support, and the axis of rotation of clamp plate limiting roller 25 extends along the fore-and-aft direction and sets up. The downside of holding down plate is provided with middle force transfer board 27, is provided with horizontal displacement buffer gear between middle force transfer board 27 and the holding down plate, and the downside of middle force transfer board 27 is provided with vertical force loading jar, and middle force transfer board is fixed in on the piston rod of vertical force loading jar 28.
In this embodiment, the horizontal displacement buffer mechanism includes an upper ball 29 fixedly connected with the lower pressing plate 26 and a lower ball 31 fixedly connected with the middle force transmission plate 27, the peripheries of the upper ball 29 and the lower ball 31 are sleeved with a middle force transmission sleeve 30, the upper end of an inner hole of the middle force transmission sleeve is an upper ball groove 33 in contact fit with the spherical surface of the upper ball, and the lower end of an inner hole of the middle force transmission sleeve is a lower ball groove 32 in contact fit with the spherical surface of the lower ball. The horizontal loading mechanism comprises a guide rail 1 extending along the left-right direction, a loading trolley 2 is assembled on the guide rail in a guiding and moving way, the loading trolley 2 is provided with a counterforce part 4 which is used for propping and matching with a vertical loading support 23, in the embodiment, the counterforce part 4 is propped on a cross beam 5 of the vertical loading support, a horizontal force loading cylinder 3 is arranged on the loading trolley, a shearing plate 7 positioned between an upper pressing plate 14 and a lower pressing plate 26 is connected on the horizontal force loading cylinder 3, a connecting pin shaft which is vertically arranged is arranged on the horizontal loading cylinder, a pin shaft connecting hole which is connected with the connecting pin shaft is arranged on the shearing plate, the height of the connecting pin shaft is higher than that of the pin shaft connecting hole, therefore, the shearing plate can move up and down relative to the connecting pin shaft so as to transfer pressure to a rubber support on the upper side, and the connecting relation of the horizontal loading cylinder and the shearing plate belongs to the prior art. When the horizontal loading cylinder is used, shear force is transmitted to the rubber support by pulling the shear plate, a certain bang amount exists between the pressure plate limiting roller 25 and the vertical loading support due to the existence of a matching error, so that when the horizontal loading cylinder pulls the shear plate, the lower pressure plate moves rightwards in a small range, the moving range is basically within 2mm, the impact of the displacement on the vertical loading cylinder is well buffered by the existence of the horizontal displacement buffer mechanism, the lower pressure plate moves rightwards with the upper ball head 29, the middle force transmission sleeve 30 is adaptively adjusted, the displacement does not act on the middle force transmission plate, the piston rod of the vertical loading cylinder is not subjected to horizontal force, on one hand, the piston is prevented from being damaged by the horizontal force for a long time, and in addition, the vertical loading cylinder can be ensured to output accurate vertical loading force to the rubber support, because if the horizontal force acts on the piston rod, the friction force between the piston rod and the cylinder body of the vertical loading cylinder is increased, and the accuracy of the vertical loading force output by the vertical loading cylinder is affected.
The upper platen 14 is rotatably provided with an upper platen 13 with a rotation axis extending in an up-down direction, the lower platen 26 is rotatably provided with a lower platen 36 with a rotation axis extending in an up-down direction, the upper end of the shear plate is rotatably provided with a shear plate upper platen 19 for cooperating with the upper platen to perform a shear test on an upper rubber support, the lower end of the shear plate is rotatably provided with a shear plate lower platen 9 for cooperating with the lower platen to perform a shear test on a lower rubber support, the upper platen 13, the shear plate upper platen 19, the shear plate lower platen 9 and the lower platen 36 are coaxially arranged, and the upper platen, the shear plate lower platen and the lower platen have a first station and a second station with rotation angles differing by 180 degrees. In this embodiment: an upper pressure plate fixing bolt 10 for fixing the upper pressure plate of the shear plate to the first station and the second station is arranged between the upper pressure plate of the shear plate and the shear plate; a lower platen fixing bolt 37 for fixing the shear plate to the first station and the second station is arranged between the lower platen of the shear plate and the shear plate.
An upper pressure plate mounting groove 17 extending to the outer peripheral surface of the upper pressure plate along the radial direction of the upper pressure plate is formed in the lower end surface of the upper pressure plate, two upper pressure plate mounting grooves 16 which are distributed at 180 degrees and are used for being matched with the upper pressure plate mounting grooves independently are formed in the lower end surface of the upper pressure plate, the upper pressure plate is hinged with an upper limit rod 15 which is positioned in the upper pressure plate mounting groove and the corresponding upper pressure plate mounting groove to limit the upper pressure plate to a corresponding station, and the hinge axis of the upper limit rod 15 is perpendicular to the up-down direction. An upper limit rod clamping groove 18 for clamping the upper limit rod after the upper limit rod is rotated out of the upper pressure plate mounting groove is formed in the upper end face of the upper pressure plate of the shear plate, and an upper limit rod handheld force application part for handheld force application is arranged in the middle of the upper limit rod. The outer end protrusion of last gag lever post is in the top board, the one end that the upper limit lever kept away from the top board pressure disk rotates to last back on the spacing draw-in groove of last gag lever post, the circumference both sides face of upper limit lever and the corresponding side cell wall contact cooperation of last spacing draw-in groove, tear the first fixing bolt of shearing board between shearing board upper pressure disk and the shearing board open, the middle part of last gag lever post can be held to the staff, drive shearing board upper pressure disk, the synchronous rotation of top board pressure disk, rotate 180 degrees back, can overturn the upper limit lever back in top board pressure disk mounting groove and the another one top board mounting groove, the upper limit lever is with the top board pressure disk limit in the second station this moment, be fixed in on the shearing board with the shearing board upper pressure disk through the first fixing bolt of shearing board.
The upper end face on the lower pressure plate pressing plate is provided with a lower pressure plate pressing plate mounting groove 35 which radially extends to the outer peripheral face of the lower pressure plate pressing plate along the lower pressure plate pressing plate, the upper end face of the lower pressure plate is provided with two lower pressure plate mounting grooves 24 which are distributed at 180 degrees and are used for being matched with the lower pressure plate pressing plate mounting grooves independently, the lower pressure plate pressing plate is hinged with a lower limit rod 22 which is positioned in the lower pressure plate pressing plate mounting groove and the corresponding lower pressure plate mounting groove so as to limit the lower pressure plate pressing plate to a corresponding station, and the hinge axis of the lower limit rod 22 is perpendicular to the up-down direction. The upper end face of the lower pressure plate of the shear plate is provided with a lower limit rod clamping groove 20 for clamping the lower limit rod after the lower limit rod is rotated out of the lower pressure plate mounting groove, and the middle part of the lower limit rod is provided with a lower limit rod handheld force application part for handheld force application. The outer end protrusion of lower gag lever post in the holding down plate, the one end that lower gag lever post kept away from the holding down plate pressure disk rotates to down on the spacing draw-in groove, the circumference both sides face of lower gag lever post and the corresponding side cell wall contact cooperation of lower spacing draw-in groove, tear shear plate second fixing bolt 37 between shear plate lower pressure disk and the shear plate down, the middle part of lower gag lever post can be held to the staff, drive shear plate lower pressure disk, holding down plate pressure disk synchronous rotation, rotate 180 degrees after, can overturn down the gag lever post back down in holding down plate pressure disk mounting groove and the another one holding down plate mounting groove, lower gag lever post is with holding down plate pressure disk limit in the second station this moment, be fixed in the shear plate down the pressure disk through shear plate second fixing bolt.
When in use, rubber supports are respectively arranged between the upper pressure plate pressing plate and the upper pressure plate of the shearing plate, and between the lower pressure plate of the shearing plate and the lower pressure plate pressing plate, when in first test, the upper pressing plate, the upper shearing plate pressing plate, the lower shearing plate pressing plate and the lower pressing plate are positioned at a first station, the non-rotation of the upper pressing plate and the lower pressing plate is realized through an upper limit rod and a lower limit rod respectively, the first fixing bolts and the second fixing bolts of the shear plates are respectively 180 degrees in interval distribution, and the second fixing bolts of the shear plates are 180 degrees in interval distribution; the horizontal force loading cylinder pulls the shear plate, the counterforce part of the loading trolley is propped against the vertical loading support, the vertical loading support forms a counterforce frame of the loading trolley, the shear plate applies horizontal shearing force towards the right direction to the corresponding rubber support by carrying the upper pressure plate and the lower pressure plate of the shear plate, so that a shearing test on one direction of the rubber support is realized, after the test is finished, the horizontal force loading cylinder unloads, the upper limit rod is turned downwards, the upper limit rod is turned upwards, the lower end of the upper limit rod is clamped into the clamping groove of the upper limit rod, the upper end of the lower limit rod is clamped into the clamping groove of the lower limit rod, the corresponding fixing bolt is removed, a worker can hold the middle part of the corresponding limit rod in a hand manner, and the limit rod in the vertical state is just like pushing a grinding stone (the limit rod in the vertical state is shown by dotted lines in figures 2 and 4), the upper pressing plate, the shearing plate upper pressing plate, the shearing plate lower pressing plate and the lower pressing plate are rotated 180 degrees to a second station, then the upper limiting rod and the lower limiting rod are retracted, the upper fixing bolt is fixed again, the rubber support is rotated 180 degrees under the driving of the upper pressing plate, the shearing plate upper pressing plate, the shearing plate lower pressing plate and the lower pressing plate, the pulling force is applied to the shearing plate through the horizontal force loading cylinder, the loading direction of the horizontal force loading cylinder is not changed in the two tests, but the shearing force directions born by the rubber support are opposite due to the fact that the rubber support rotates 180 degrees, and the two-way loading on the horizontal direction of the rubber support is achieved, so that the two-way loading is closer to a real earthquake environment. In other embodiments of the invention: the working positions of the upper pressing plate and the lower pressing plate can be fixed by bolts; the counterforce part can also be propped against the upright post of the vertical loading bracket.
Claims (5)
1. The utility model provides a hydraulic pressure shear test machine, includes vertical loading mechanism and horizontal loading mechanism, and vertical loading mechanism includes vertical loading support, top board and holding down plate, and horizontal loading mechanism includes along the guide rail of controlling the orientation extension, and the direction removes on the guide rail to be equipped with the loading dolly, the loading dolly have be used for with vertical loading support top support matched counter-force portion, be provided with horizontal force loading jar on the loading dolly, be connected with the shear plate that is located between top board and the holding down plate on the horizontal force loading jar, its characterized in that: an upper pressing plate with a rotating axis extending along the up-down direction is rotatably assembled on the upper pressing plate, a lower pressing plate with a rotating axis extending along the up-down direction is rotatably assembled on the lower pressing plate, a shearing plate upper pressing plate which is used for being matched with the upper pressing plate to perform shearing test on a rubber support on the upper side is rotatably arranged at the upper end of the shearing plate, the lower end of the shear plate is rotatably provided with a lower shear plate pressure plate which is matched with a lower pressure plate to carry out shear test on a rubber support on the lower side, an upper pressure plate, an upper shear plate pressure plate, a lower shear plate pressure plate and a lower pressure plate are coaxially arranged, the upper pressure plate, the upper shear plate pressure plate, the lower shear plate pressure plate and the lower pressure plate are provided with a first station and a second station with 180 degrees of rotation angle difference, the upper pressing plate is characterized in that an upper pressing plate mounting groove which extends to the outer peripheral surface of the upper pressing plate in the radial direction of the upper pressing plate is formed in the lower end face of the upper pressing plate, two upper pressing plate mounting grooves which are distributed at 180 degrees and are used for being matched with the upper pressing plate mounting groove independently are formed in the lower end face of the upper pressing plate, an upper limiting rod which is located in the upper pressing plate mounting groove and the corresponding upper pressing plate mounting groove and used for limiting the upper pressing plate to a corresponding station is hinged to the upper pressing plate, the hinge axis of the upper limiting rod is perpendicular to the upper and lower direction, the vertical loading support comprises an upright post and a cross beam which is arranged on the upright post, the height of the cross beam can be adjusted, and the upper pressing plate is fixed at the lower end of the cross beam.
2. The hydraulic pressure shear testing machine of claim 1, wherein: a first shear plate fixing bolt for fixing the upper pressure plate of the shear plate to the first station and the second station is arranged between the upper pressure plate of the shear plate and the shear plate; and a second shear plate fixing bolt for fixing the shear plate to the first station and the second station is arranged between the lower pressure plate of the shear plate and the shear plate.
3. The hydraulic pressure shear testing machine of claim 1, wherein: an upper limit rod clamping groove used for clamping the upper limit rod after the upper limit rod is rotated out of the upper pressure plate mounting groove is formed in the upper end face of the upper pressure plate of the shear plate, and an upper limit rod handheld force application part used for handheld force application is arranged in the middle of the upper limit rod.
4. The hydraulic pressure shear testing machine according to claim 1 or 2, wherein: the upper end face of the lower pressure plate pressing plate is provided with a lower pressure plate pressing plate mounting groove which radially extends to the outer peripheral face of the lower pressure plate pressing plate along the lower pressure plate pressing plate, the upper end face of the lower pressure plate is provided with two lower pressure plate mounting grooves which are distributed at 180 degrees and are used for being matched with the lower pressure plate pressing plate mounting groove singly, the lower pressure plate pressing plate is hinged with a lower limit rod which is positioned in the lower pressure plate pressing plate mounting groove and the corresponding lower pressure plate mounting groove so as to limit the lower pressure plate pressing plate to a corresponding station, and the hinge axis of the lower limit rod is perpendicular to the up-down direction.
5. The hydraulic pressure shear testing machine of claim 4, wherein: the lower end face of the lower pressure plate of the shear plate is provided with a lower limit rod clamping groove used for clamping the lower limit rod after the lower limit rod is rotated out of the lower pressure plate mounting groove, and the middle part of the lower limit rod is provided with a lower limit rod handheld force application part used for handheld force application.
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| CN201910075112.6A CN109580392B (en) | 2019-01-25 | 2019-01-25 | Hydraulic pressure shear test machine |
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| CN201910075112.6A CN109580392B (en) | 2019-01-25 | 2019-01-25 | Hydraulic pressure shear test machine |
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| CN109580392B true CN109580392B (en) | 2023-08-25 |
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| CN115855631B (en) * | 2023-03-03 | 2023-07-04 | 济南永明设备仪器有限公司 | Electrohydraulic servo pressure shear experimental device |
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