CN209589720U - Crank-rocker style pressure-shear test machine - Google Patents
Crank-rocker style pressure-shear test machine Download PDFInfo
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- CN209589720U CN209589720U CN201920132842.0U CN201920132842U CN209589720U CN 209589720 U CN209589720 U CN 209589720U CN 201920132842 U CN201920132842 U CN 201920132842U CN 209589720 U CN209589720 U CN 209589720U
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Abstract
The utility model relates to a kind of crank-rocker style pressure-shear test machines, including rack, horizontal addload mechanism and vertical loading mechanism, horizontal addload mechanism includes shear plate, vertical loading mechanism includes the lower platen being set on the downside of shear plate, guiding movement is mounted on the rack shear plate in left-right direction, torque output member is fixedly installed in rack, it is sequentially connected with crank in the torque output of torque output member, is connected between crank and the shear plate by rocking bar to drive shear plate to move back and forth in the lateral direction when crank rotates.A kind of crank-rocker style pressure-shear test machine that biaxial loadings in horizontal direction can be carried out to rubber support of the utility model body.
Description
Technical field
The utility model relates to the crank-rocker style pressure-shear test machines in testing machine field.
Background technique
Pressure-shear test machine is mainly used for the compound bar that different types of rridges are board-like, pot rubber bearing carries out resistance to compression, anti-shearing force
Under part, the axial-radial resistance to compression, shearing resistance, corner mechanical test of rubber support are detected.It can carry out the compression elasticity mould of rubber support
Amount, shear modulus allow the angle of shear, the mechanical property tests such as coefficient of friction and compressive ultimate strength.
Existing hydraulic pressure-shear test machine is as shown in Figure 1, the pressure-shear test machine includes vertical loading mechanism and horizontal addload
Mechanism, vertical loading mechanism include vertical load bracket, and the vertical bracket that loads includes pedestal, column 5 and crossbeam 4, on pedestal
It is provided with vertical load cylinder 6, horizontal addload mechanism includes the guide rail 1 arranged in left-right direction, and guiding movement is equipped on guide rail
Trolley 2 is loaded, loads and is provided with horizontal addload cylinder on trolley 2, shear plate 9 is connected on horizontal addload cylinder.
When needing to carry out anti-shearing force test to rubber support, two rubber supports 8 are respectively placed in the upper of shear plate 9
It is vertical to load cylinder to the vertical loading force of rubber support application to simulate bridge weight between lower face and crossbeam 4 and lower platen 7, it loads
The counter-force portion 3 of small roof is against on crossbeam and using crossbeam as reaction frame, applies pulling force, shearing to shear plate by horizontal addload cylinder
Plate shears two rubber supports of upper and lower sides, to simulate the shearing of the afforded bridge of the rubber support in seismic environment
Active force.The anti-shear performance of rubber support is tested in this way, and existing this hydraulic pressure-shear test machine has problems in that:
Because load trolley is vertically to load bracket as reaction frame, load trolley can only apply the work in a direction to rubber support
Firmly, that is to say, that shear plate also can only to rubber support apply a direction shearing force, this in true seismic environment, rubber
Bridge shear power suffered by glue support differs farther out, and in true seismic environment, bridge may be reciprocal in one direction
Shaking, therefore be also the reciprocating on a direction to the shearing force of rubber support, the deformation of rubber support not only court
One direction, and pressure-shear test machine in the prior art is only able to achieve the upwardly-deformed shearing test in one side of rubber support, with
The true stress condition of rubber support less meets.
Utility model content
The purpose of this utility model is to provide a kind of songs that biaxial loadings in horizontal direction can be carried out to rubber support
Handle rocker-type pressure-shear test machine.
In order to solve the above technical problems, the technical solution of the utility model is as follows:
A kind of crank-rocker style pressure-shear test machine, including rack, horizontal addload mechanism and vertical loading mechanism, horizontal addload
Mechanism includes shear plate, and vertical loading mechanism includes the lower platen being set on the downside of shear plate, and shear plate is oriented in left-right direction
Movement is mounted on the rack, and is fixedly installed torque output member in rack, in the torque output of torque output member
It is sequentially connected with crank, is connected between crank and the shear plate by rocking bar to drive shear plate in left and right when crank rotates
It is moved back and forth on direction.
The torque output member is decelerating motor or hydraulic motor.
Rack includes the vertical load bracket and the fixed bracket of torque output member of left and right arrangement, the torque output member
It is fixed on the fixed bracket of the torque output member, the vertical loading mechanism is set on the vertical load bracket.
It is fixedly installed guide type shoe on the fixed bracket of the torque output member, realization is provided on guide type shoe and is cut
The cutting plate shear plate pilot hole that guiding movement cooperates in the lateral direction.
Pressing plate limited roller is provided between the left and right sides of lower platen and vertical load bracket, pressing plate limited roller turns
Shaft line is extended along the longitudinal direction.Intermediate force transmitting board is provided on the downside of lower platen, between intermediate force transmitting board and lower platen
It is provided with horizontal displacement buffer gear, vertical force load cylinder is provided on the downside of intermediate force transmitting board, intermediate force transmitting board is fixed on perpendicular
To power load cylinder piston rod on, horizontal displacement buffer gear include the upper bulb being fixedly connected with lower platen and with intermediate power transmission
The lower bulb that plate is fixedly connected, upper bulb, lower bulb periphery be arranged with intermediate power transmission set, the inner hole upper end of intermediate power transmission set is
Inner hole lower end with the upper ball groove of upper bulb sphere-contact cooperation, intermediate power transmission set is the lower ball cooperated with lower bulb sphere-contact
Slot.
The utility model has the following beneficial effects: this crank-rocker style pressure-shear test machine is when in use, in the two sides of shear plate
Rubber support is placed between lower platen, and vertical loading force is applied to rubber support to simulate bridge by vertical loading mechanism
Weight, torque output member drive crank rotation, and crank drives shear plate to be moved back and forth in the lateral direction with right by rocking bar
Rubber support applies the shearing force in horizontal direction, realized by crank rocker to two-way in rubber support horizontal direction plus
It carries, is closer to true seismic environment.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of background technique in the utility model；
Fig. 2 is the structural schematic diagram of one embodiment of the utility model；
Fig. 3 is the structural schematic diagram of horizontal displacement buffer gear in Fig. 2；
Fig. 4 is the structural schematic diagram of shear plate in Fig. 2；
Fig. 5 is the cooperation schematic diagram of lower platen in Fig. 2, pressing plate limited roller and left side limiting bracket, right side limiting bracket.
Specific embodiment
A kind of implementation of crank-rocker style pressure-shear test machine is for example shown in Fig. 2 ~ 5: including rack, horizontal addload mechanism and perpendicular
To loading mechanism, rack includes the vertical load bracket and the fixed bracket 10 of torque output member of left and right arrangement, vertically loads machine
Structure is set on vertical load bracket, and horizontal addload mechanism is set on the fixed bracket of torque output member.
Vertical load bracket includes left side limiting bracket 16, right side limiting bracket 17 and is set to left side limiting bracket, the right side
Crossbeam 5 on the limiting bracket of side, vertical loading mechanism include lower platen 26, the left and right sides of lower platen 26 and left side limiting bracket
16, pressing plate limited roller 25 is respectively arranged between right side limiting bracket 17, the pivot center of pressing plate limited roller 25 is along front and back
Direction is extended, and the pressing plate limited roller in left side is used to be in rolling contact cooperation, the pressing plate limit on right side with left side limiting bracket
Idler wheel is used to be in rolling contact cooperation with right side limiting bracket.Intermediate force transmitting board 27, intermediate force transmitting board are provided on the downside of lower platen
Horizontal displacement buffer gear is provided between 27 and lower platen 26, the downside of intermediate force transmitting board 27 is provided with vertical force load cylinder
28, intermediate force transmitting board is fixed on the piston rod of vertical force load cylinder 28.
In the present embodiment, horizontal displacement buffer gear includes the upper bulb 29 being fixedly connected with lower platen 26 and passes with centre
The lower bulb 31 that power plate 27 is fixedly connected, upper bulb 29, lower bulb 31 periphery be arranged with intermediate power transmission set 30, intermediate power transmission set
Inner hole upper end be the upper ball groove 33 cooperated with upper bulb sphere-contact, the inner hole lower end of intermediate power transmission set is and lower bulb spherical surface
The lower ball groove 32 being engaged.Horizontal addload mechanism includes the shear plate 20 on the upside of lower platen, and shear plate includes and pushing
The plate body part 19 and the connecting rod 9 being connected on the right side of plate body part 19 that plate 26 is oppositely arranged, the fixed bracket of torque output member
On be fixedly installed guide type shoe 18, the connecting rod that realization and shear plate are provided on guide type shoe 18 is oriented in the lateral direction
The shear plate pilot hole 15 of mobile cooperation, that is to say, that 9 guiding movement of connecting rod is threaded onto shear plate pilot hole, right side limit
Bracket is equipped with the channel passed through in the lateral direction for connecting rod.Horizontal addload mechanism further includes being fixed on torque output member
The torque output member on bracket is fixed, torque output member is decelerating motor 12 in the present embodiment, and torque output member moves
It is fixed with crank 13 on power output end, that is, decelerating motor power output shaft 11, leads between crank 13 and the connecting rod 9 of shear plate
It crosses rocking bar 14 to be connected to drive shear plate to move back and forth in the lateral direction when crank rotates, specific connection relationship is to shake
One end of bar is hinged and connected with connecting rod, and other end and the crank of rocking bar are hinged and connected.
Rocking bar transmits shearing force to rubber support by pulling shear plate, due to the presence of mismatch error, pressing plate limit
There can be certain crash amount between idler wheel 25 and left side limiting bracket, right side limiting bracket, therefore when level pulls shear plate,
Lower platen can generate moving to right in range by a small margin, and moving range passes through depositing for horizontal displacement buffer gear substantially within 2mm
Impact of the displacement to vertical force load cylinder is then being buffered well, and with upper bulb 29 towards right translation, centre passes lower platen
Power covers the movement adjustment of 30 adaptability, this displacement will not be applied on intermediate force transmitting board, therefore the piston of vertical force load cylinder
Bar not will receive horizontal applied force, on the one hand can be damaged by horizontal applied force to avoid piston, in addition may be used also for a long time
To guarantee that vertical load cylinder can export accurately vertical loading force to rubber support, because if this horizontal applied force acts on
Onto piston rod, the frictional force between piston rod and the cylinder body of vertical load cylinder will definitely increase, which just will affect perpendicular
The accuracy of vertical loading force is exported to load cylinder.
When testing rubber support, rubber support 21 is placed between shear plate and lower platen, vertical force loads cylinder
28 apply vertical loading force to rubber production by intermediate force transmitting board 27, lower platen 26, to simulate bridge weight.Decelerating motor band
Dynamic crank rotation, crank drives shear plate to move back and forth in the lateral direction by rocking bar, to apply left and right to rubber support
Shearing force on direction.In the other embodiments of the utility model: torque output member can also be hydraulic motor；Shear plate
It can also be realized by being oriented to cooperation with right side limiting bracket 17 and the left and right guiding movement of rack cooperates.
Claims (5)
1. a kind of crank-rocker style pressure-shear test machine, including rack, horizontal addload mechanism and vertical loading mechanism, horizontal addload machine
Structure includes shear plate, and vertical loading mechanism includes the lower platen being set on the downside of shear plate, it is characterised in that: shear plate is along left and right
Direction guiding movement is mounted on the rack, and torque output member, the torque of torque output member are fixedly installed in rack
It is sequentially connected with crank on output end, is connected between crank and the shear plate by rocking bar to drive and shear when crank rotates
Plate moves back and forth in the lateral direction.
2. crank-rocker style pressure-shear test machine according to claim 1, it is characterised in that: the torque output member is to subtract
Speed motor or hydraulic motor.
3. crank-rocker style pressure-shear test machine according to claim 1, it is characterised in that: rack includes the perpendicular of left and right arrangement
To load bracket and the fixed bracket of torque output member, the torque output member is fixed on the fixed branch of the torque output member
On frame, the vertical loading mechanism is set on the vertical load bracket.
4. crank-rocker style pressure-shear test machine according to claim 3, it is characterised in that: the torque output member is fixed
Guide type shoe is fixedly installed on bracket, realization and shear plate are provided on guide type shoe, and guiding movement cooperates in the lateral direction
Shear plate pilot hole.
5. crank-rocker style pressure-shear test machine according to claim 3, it is characterised in that: the left and right sides of lower platen and perpendicular
It is provided with pressing plate limited roller between load bracket, the pivot center of pressing plate limited roller is extended along the longitudinal direction, under
It is provided with intermediate force transmitting board on the downside of pressing plate, horizontal displacement buffer gear is provided between intermediate force transmitting board and lower platen, it is intermediate
Vertical force load cylinder is provided on the downside of force transmitting board, intermediate force transmitting board is fixed on the piston rod of vertical force load cylinder, horizontal position
Moving buffer gear includes the upper bulb being fixedly connected with lower platen and the lower bulb that is fixedly connected with intermediate force transmitting board, upper bulb,
The periphery of lower bulb is arranged with intermediate power transmission set, and the inner hole upper end of intermediate power transmission set is the upper ball cooperated with upper bulb sphere-contact
The inner hole lower end of slot, intermediate power transmission set is the lower ball groove cooperated with lower bulb sphere-contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920132842.0U CN209589720U (en) | 2019-01-25 | 2019-01-25 | Crank-rocker style pressure-shear test machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920132842.0U CN209589720U (en) | 2019-01-25 | 2019-01-25 | Crank-rocker style pressure-shear test machine |
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| Publication Number | Publication Date |
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| CN209589720U true CN209589720U (en) | 2019-11-05 |
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| CN201920132842.0U Active CN209589720U (en) | 2019-01-25 | 2019-01-25 | Crank-rocker style pressure-shear test machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612849A (en) * | 2019-01-25 | 2019-04-12 | 河南交通职业技术学院 | A kind of crank-rocker style pressure-shear test machine |
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2019
- 2019-01-25 CN CN201920132842.0U patent/CN209589720U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612849A (en) * | 2019-01-25 | 2019-04-12 | 河南交通职业技术学院 | A kind of crank-rocker style pressure-shear test machine |
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Address after: 450000 No. 165 Nautical Middle Road, Erqi District, Zhengzhou City, Henan Province Patentee after: HENAN VOCATIONAL AND TECHNICAL College OF COMMUNICATIONS Patentee after: Henan Jiaoyuan Engineering Technology Group Co.,Ltd. Address before: 450000 No. 165 Nautical Middle Road, Erqi District, Zhengzhou City, Henan Province Patentee before: HENAN VOCATIONAL AND TECHNICAL College OF COMMUNICATIONS Patentee before: HENAN JIAOYUAN ENGINEERING TECHNOLOGY Co.,Ltd. |