CN209446409U - The pressure-shear test machine of piston rod running resistance can be reduced - Google Patents
The pressure-shear test machine of piston rod running resistance can be reduced Download PDFInfo
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- CN209446409U CN209446409U CN201920133567.4U CN201920133567U CN209446409U CN 209446409 U CN209446409 U CN 209446409U CN 201920133567 U CN201920133567 U CN 201920133567U CN 209446409 U CN209446409 U CN 209446409U
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Abstract
The utility model relates to the pressure-shear test machines that one kind can reduce piston rod running resistance, including vertical loading mechanism, shear plate and the horizontal addload mechanism for applying to the shear plate horizontal force in left-right direction, vertical loading mechanism includes that vertical Load test framework, the lower platen being used cooperatively with shear plate and the vertical force for applying vertical load to the lower platen load cylinder, vertical Load test framework includes at least two circumferentially spaced guide upright posts being arranged on the outside of the lower platen, is provided with the linear bearing that guiding movement is set on corresponding guide upright post on lower platen.The utility model provides a kind of pressure-shear test machine that can reduce vertical force and load frictional force between the cylinder body and piston rod of cylinder.
Description
Technical field
Reduce piston rod running resistance for carry out compression-shear test to rubber support the utility model relates to a kind of
Pressure-shear test machine.
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, stand 5 and crossbeam 4, on pedestal
It is provided with vertical force load cylinder 6, is fixed with lower platen 7 on the piston rod of vertical force load cylinder, horizontal addload mechanism includes along a left side
The guide rail 1 of right direction arrangement, guiding movement is equipped with load trolley 2 on guide rail, 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:
When vertical force load cylinder vertically loads, shear plate applies horizontal direction shearing force to rubber support, and rubber support also can be to pushing
Plate and then one horizontal direction active force of piston rod that cylinder is loaded to vertical force, vertical force loads the piston of cylinder and vertical force loads
Biggish frictional force is generated between the cylinder body of cylinder, which will affect the accuracy that vertical load cylinder exports vertical loading force,
Abrasion between piston rod and cylinder body can also be aggravated simultaneously, the service life for having reduced load cylinder vertical.
Utility model content
It can reduce the purpose of this utility model is to provide one kind and rub between the cylinder body and piston rod of vertical force load cylinder
Wipe the pressure-shear test machine of power.
In order to solve the above technical problems, the technical solution in the utility model is as follows:
A kind of pressure-shear test machine reducing piston rod running resistance, including vertical loading mechanism, shear plate and Xiang Suoshu
Shear plate applies the horizontal addload mechanism of horizontal force in left-right direction, and vertical loading mechanism includes vertical Load test framework and shearing
The lower platen that plate is used cooperatively and the vertical force for applying vertical load to the lower platen load cylinder, vertical Load test framework packet
At least two circumferentially spaced guide upright posts being arranged on the outside of the lower platen are included, guiding movement suit is provided on lower platen
Linear bearing on corresponding guide upright post.
There are two guide upright posts, and two guide upright posts are symmetrically arranged.
It is symmetrically arranged on the lower platen there are two bearing mounting ear, offers axis vertically on bearing mounting ear
The bearing mounting hole that direction extends, linear bearing are installed in corresponding bearing mounting hole.
Vertical loading mechanism further includes the top board on the upside of shear plate, and horizontal addload mechanism includes prolonging in left-right direction
The guide rail stretched, guiding movement is equipped with load trolley on guide rail, and load trolley has for supporting with the vertical load top of support
The counter-force portion of cooperation loads and is provided with horizontal force load cylinder on trolley, is rotatably equipped with pivot center along upper on the top board
The top board platen that lower direction extends is rotatably equipped with the pushing disc plate pressure that pivot center vertically extends on lower platen,
The upper end rotation of shear plate, which is provided with, carries out cutting for shearing test for cooperating with top board platen with the rubber support to upside
Platen on cutting plate, the lower end rotation of shear plate, which is provided with, is cut for cooperating with pushing disc plate pressure with the rubber support to downside
The shear plate pressing disc of test is cut, platen, shear plate pressing disc and pushing disc plate pressure coaxial line are set on top board platen, shear plate
It sets, platen, shear plate pressing disc and pushing disc plate pressure have the first of angle of rotation difference 180 degree on top board platen, shear plate
Station and second station.
The utility model has the following beneficial effects: in use, horizontal addload mechanism is cut to shear plate application horizontal direction load
Cutting plate applies shearing force to the rubber support between shear plate and lower platen, and under the active force of rubber support, lower platen has
Certain mobile trend is avoided suffered by the piston rod of vertical force load cylinder more by contact of the linear bearing with guide upright post
More horizontal forces avoids having larger normal pressure between piston rod and the cylinder body of vertical force load cylinder and frictional force is larger, at this time such as
Fruit piston rod continues if stretching out acting, is rolling friction between guide upright post and linear bearing, compared to the prior art piston
Resistance suffered by vertical force load cylinder is also significantly reduced for sliding friction between bar and cylinder body.
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 cooperation schematic diagram of lower platen and rubber support in the utility model；
Fig. 4 is top board platen in the utility model, platen on shear plate, shear plate pressing disc and pushes matching for disc plate pressure
Close schematic diagram；
Fig. 5 is the structural schematic diagram of horizontal displacement buffer gear in the utility model.
Specific embodiment
A kind of implementation for the pressure-shear test machine reducing piston running resistance is for example shown in Fig. 2 ~ 5: including vertically loading machine
Structure and horizontal addload mechanism, vertical loading mechanism include vertical load bracket 23, and the vertical bracket 23 that loads includes that two guiding are vertical
Column 6 and the crossbeam 5 being set on guide upright post, two guide upright posts or so arranged for interval, the lower end of crossbeam is provided with top board
14, the downside of top board 14 is provided with lower platen 26, and two guide upright posts are symmetrically arranged in the left and right sides of lower platen.Lower platen
The left and right sides be arranged symmetrically there are two bearing mounting ear 40, be provided with axis on each bearing mounting ear 40 and prolong along the vertical direction
The bearing mounting hole stretched, is fixed in bearing mounting hole and the linear bearing 25 of corresponding guide upright post guiding movement cooperation.
It is provided with intermediate force transmitting board 27 on the downside of lower platen, is provided with horizontal displacement between intermediate force transmitting board 27 and lower platen
Buffer gear, the downside of intermediate force transmitting board 27 are provided with vertical force load cylinder, and intermediate force transmitting board 27 is fixed on vertical force load cylinder
On 28 piston rod.
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 guide rail 1 extended in left-right direction, and guiding movement is equipped on guide rail
Loading trolley 2, load trolley 2 has for the counter-force portion 4 with vertical load 23 contact of bracket cooperation, in the present embodiment, counter-force
4 contact of portion loads on the vertically crossbeam 5 of load bracket and is provided with horizontal force load cylinder 3 on trolley, and horizontal force loads on cylinder 3
The specific connection relationship of the shear plate 7 being connected between top board 14 and lower platen 26, horizontal addload cylinder and shear plate is,
It is provided with the connection pin shaft being vertically arranged on horizontal addload cylinder, the pin shaft connected with pin shaft is connect is provided on shear plate and is connected
Connect hole, the height for connecting pin shaft is higher than the height of pin shaft connecting hole, therefore shear plate can opposite connection pin shaft move up and down, with to
The connection relationship of the rubber support transmitting pressure of upside, horizontal addload cylinder and shear plate belongs to the prior art.It is opened up on shear plate 7
There is the evacuation channel 71. for avoiding corresponding guide upright post in use, horizontal addload cylinder is passed by pulling shear plate to rubber support
Shearing force is passed, there can be certain crash amount due to the presence of mismatch error, between linear bearing and guide upright post, therefore in level
When loading cylinder pulling shear plate, lower platen can generate moving to right in range by a small margin, and moving range passes through substantially within 2mm
The presence of horizontal displacement buffer gear has then buffered impact of the displacement to vertical force load cylinder well, and lower platen is with upper
For bulb 29 towards right translation, intermediate power transmission covers the movement adjustment of 30 adaptability, this displacement will not be applied on intermediate force transmitting board, because
The piston rod of this vertical force load cylinder not will receive horizontal applied force, on the one hand can be made for a long time by level to avoid piston
It firmly damages, accurately vertical loading force can be exported to rubber support in addition it can guarantee vertically to load cylinder, because such as
This horizontal applied force of fruit is applied on piston rod, will definitely increase the friction between piston rod and the cylinder body of vertical load cylinder
Power, the frictional force just will affect the accuracy that vertical load cylinder exports vertical loading force.Even if there is no horizontal displacement buffer gear
Presence, due to the contact of linear bearing and guide upright post act on exist, can also reduce vertical force load cylinder piston rod and cylinder
Horizontal pressure force between body reduces the frictional force between the two, there is the presence of horizontal displacement buffer gear, piston rod and cylinder
Horizontal direction pressure between body is almost nil, can ignore.
It is rotatably equipped with the top board platen 13 that pivot center vertically extends on top board 14, turns on lower platen 26
It is dynamic to be equipped with the pushing disc plate pressure 36 that pivot center vertically extends, the upper end rotation of shear plate be provided with for upper pressure
Disc plate pressure cooperation carries out platen 19 on the shear plate of shearing test with the rubber support to upside, and the lower end of shear plate rotates setting
There are the shear plate pressing disc 9 for carrying out shearing test with the rubber support to downside with pushing disc plate pressure cooperation, top board pressure
Platen 19, shear plate pressing disc 9 and pushing disc plate pressure 36 are coaxially set on disk 13, shear plate, on top board platen, shear plate
Platen, shear plate pressing disc and pushing disc plate pressure have the first station and second station of angle of rotation difference 180 degree.In this implementation
In example: being provided with realization on shear plate between platen and shear plate for platen on shear plate and be fixed on the first station and second station
Upper platen fixing bolt 10；Be provided between shear plate pressing disc and shear plate realization by shear plate be fixed on the first station and
The pressing disc fixing bolt 37 of second station.
It is provided with one on lower end surface on top board platen and extends radially to top board platen periphery along top board platen
The top board platen mounting groove 17 in face, on the lower end surface of top board setting there are two in 180 degree distribution for individually with upper pressure
The top board mounting groove 16 that disc plate pressure mounting groove is used cooperatively, be hinged on top board platen positioned at top board platen mounting groove with
Top board platen is limited in the upper limit bar 15 of corresponding station, the articulated shaft of upper limit bar 15 in corresponding top board mounting groove
Line is perpendicular to up and down direction.It is provided on the upper surface of platen on shear plate after being produced for upper limit bar by top board mounting groove
There is the upper limit bar for hand-held force to hold force section for the upper limit bar card slot 18 being caught in, the middle part of upper limit bar.The upper limit
The outer end of position bar protrudes from top board, after upper limit bar turns on upper limit card slot far from one end of top board platen, the upper limit
The circumferential two sides of position bar and the respective side cell wall of upper limit card slot are engaged, on shear plate of dismantling between platen and shear plate
The first fixing bolt of shear plate, staff can hold the middle part of upper limit bar, to drive platen on shear plate, top board
Platen rotates synchronously, and after rotating 180 degree, upper limit bar can be flipped back to top board platen mounting groove and another top board
In mounting groove, top board platen is limited in second station by upper limit bar at this time, will be sheared by the first fixing bolt of shear plate
Platen is fixed on shear plate on plate.
It is provided with one on upper surface on pushing disc plate pressure and extends radially to push disc plate pressure periphery along disc plate pressure is pushed
The pushing disc plate pressure mounting groove 35 in face, on the upper surface of lower platen setting there are two in 180 degree distribution for individually with pushing
The lower platen mounting groove 24 that disc plate pressure mounting groove is used cooperatively, push disc plate pressure on be hinged be located at push disc plate pressure mounting groove with
The lower limit bar 22 that disc plate pressure is limited in corresponding station, the articulated shaft of lower limit bar 22 will be pushed in corresponding lower platen mounting groove
Line is perpendicular to up and down direction.It is provided on the upper surface of shear plate pressing disc after being produced for lower limit bar by lower platen mounting groove
There is the lower limit bar for hand-held force to hold force section for the lower limit bar card slot 20 being caught in, the middle part of lower limit bar.Lower limit
The outer end of position bar protrudes from lower platen, after lower limit bar turns on lower limit card slot far from the one end for pushing disc plate pressure, lower limit
The circumferential two sides of position bar and the respective side cell wall of lower limit card slot are engaged, and dismantle between shear plate pressing disc and shear plate
The second fixing bolt of shear plate 37, staff can hold the middle part of lower limit bar, come drive shear plate pressing disc, push
Disc plate pressure rotates synchronously, and after rotating 180 degree, lower limit bar can be flipped back to and push disc plate pressure mounting groove and another pushing
In plate mounting groove, lower limit bar is limited in second station for disc plate pressure is pushed at this time, will be cut by the second fixing bolt of shear plate
Cutting plate pressing disc is fixed on shear plate.
In use, respectively on top board platen and shear plate between platen, shear plate pressing disc and push disc plate pressure it
Between place rubber support, when testing for the first time, platen on top board platen, shear plate, shear plate pressing disc and push at disc plate pressure
In the first station, top board platen, not being able to rotate for pushing disc plate pressure are realized by upper limit bar and lower limit bar respectively, shearing
Platen, not being able to rotate for shear plate pressing disc then fix spiral shell by the first fixing bolt of shear plate and shear plate second respectively on plate
Bolt is realized, in the present embodiment, there are two the first fixing bolt of shear plate, the second fixing bolt of shear plate are equal, and two shear plates the
One fixing bolt is spaced apart in 180, and two the second fixing bolts of shear plate are spaced apart in 180 degree；Horizontal force loads cylinder and draws
Shear plate is dragged, loads the counter-force portion contact of trolley on vertically load bracket, the vertical counter-force for loading bracket and constituting load trolley
Frame, shear plate apply to corresponding rubber support towards the horizontal direction in right direction with platen on shear plate and shear plate pressing disc
Shearing force is realized to the shearing test on one direction of rubber support, and after the test, horizontal force loads cylinder unloading, downwards
Overturn upper limit bar, be flipped up upper limit bar, the lower end of upper limit bar snaps onto upper limit bar card slot, lower limit bar it is upper
End snaps onto lower limit bar card slot, and corresponding fixing bolt of dismantling, staff can hold the middle part of corresponding gag lever post, just
It is the same (gag lever post of vertical state is represented by dashed line in Fig. 2, Fig. 4) to stone of turning a millstone, it will be pressed on top board platen, shear plate
It disk, shear plate pressing disc and pushes disc plate pressure and rotates 180 degree to second station, then withdraw upper limit bar, lower limit bar,
Fixing bolt is retightened, platen, shear plate pressing disc and the drive for pushing disc plate pressure on top board platen, shear plate
Under, rubber support rotates 180 degree, then loads cylinder by horizontal force and apply drag force to shear plate, although testing horizontal force twice
The loading direction of cylinder is loaded there is no changing, but since rubber support itself has rotated 180 degree, rubber support is twice
Suffered shearing force is contrary, realizes to the biaxial loadings in rubber support horizontal direction, is closer to really
Shake environment.In the other embodiments of the utility model: top board platen, the working position fixation for pushing disc plate pressure can also pass through
Bolt is realized；It counter-force portion can also be with contact on the vertically guide upright post of load bracket；Guide upright post can also there are four, four
A guide upright post is evenly distributed in the periphery of lower platen.
Claims (3)
1. one kind can reduce the pressure-shear test machine of piston rod running resistance, including vertical loading mechanism, shear plate and cut to described
Cutting plate applies the horizontal addload mechanism of horizontal force in left-right direction, and vertical loading mechanism includes vertical Load test framework and shear plate
The lower platen being used cooperatively and the vertical force for applying vertical load to the lower platen load cylinder, it is characterised in that: vertical
Load test framework includes at least two circumferentially spaced guide upright posts being arranged on the outside of the lower platen, is provided with and leads on lower platen
The linear bearing on corresponding guide upright post is loaded on to movable sleeving.
2. pressure-shear test machine according to claim 1, it is characterised in that: there are two guide upright posts, two guide upright post left sides
The right side is arranged symmetrically.
3. pressure-shear test machine according to claim 2, it is characterised in that: there are two being symmetrically arranged on the lower platen
Bearing mounting ear, offers the bearing mounting hole that axis vertically extends on bearing mounting ear, and linear bearing is installed on pair
In the bearing mounting hole answered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920133567.4U CN209446409U (en) | 2019-01-25 | 2019-01-25 | The pressure-shear test machine of piston rod running resistance can be reduced |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920133567.4U CN209446409U (en) | 2019-01-25 | 2019-01-25 | The pressure-shear test machine of piston rod running resistance can be reduced |
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| CN209446409U true CN209446409U (en) | 2019-09-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109580391A (en) * | 2019-01-25 | 2019-04-05 | 河南交院工程技术有限公司 | A kind of pressure-shear test machine reducing piston rod running resistance |
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- 2019-01-25 CN CN201920133567.4U patent/CN209446409U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109580391A (en) * | 2019-01-25 | 2019-04-05 | 河南交院工程技术有限公司 | A kind of pressure-shear test machine reducing piston rod running resistance |
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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. |