CN110220795A - A kind of pressure testing machine - Google Patents
A kind of pressure testing machine Download PDFInfo
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- CN110220795A CN110220795A CN201910521448.0A CN201910521448A CN110220795A CN 110220795 A CN110220795 A CN 110220795A CN 201910521448 A CN201910521448 A CN 201910521448A CN 110220795 A CN110220795 A CN 110220795A
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- shear
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- 238000012360 testing method Methods 0.000 title claims abstract description 34
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 11
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000010008 shearing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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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
-
- 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
-
- 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
-
- 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
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- 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
- G01N2203/0025—Shearing
-
- 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
Abstract
The present invention relates to a kind of pressure testing machines, including rack, rack includes pedestal, the column group of left, center, right three is provided on pedestal, each column group includes former and later two columns, it is provided with crossbeam on six columns, is provided with the left working cylinder being vertically arranged on crossbeam between left column group and central post group, is provided with the right working cylinder being vertically arranged on crossbeam between central post group and right column group.In the present invention, left working cylinder, right working cylinder are simultaneously operable, it can also work independently, it can be realized as the output of larger operating pressure when left working cylinder, right working cylinder work at the same time compared to single work cylinder working, it can be realized the output of smaller operating pressure when single work cylinder working, to cover wider array of pressure limit, individually when work cylinder working, also there is its corresponding column group to guarantee to bear the stability of rack when counter-force.
Description
Technical field
The present invention relates to the pressure testing machines that one kind can export vertical load.
Background technique
Currently, common pressure testing machine is four column press comprising rack, rack include pedestal, on pedestal
Be arranged there are four the column that is vertically arranged, on column guiding movement be equipped with can oscilaltion crossbeam, be provided on crossbeam
The working cylinder being vertically arranged, in use, the piston rod of working cylinder is stretched out to apply pressure to workpiece to be tested.
Existing this pressure testing machine has problems in that: when four columns ensure that crossbeam by working cylinder reaction force
Stability, but the maximum output pressure of working cylinder is constant, if the selection biggish working cylinder of maximum output pressure, just
It is unable to complete the pressure testing of some low-pressures, if the selection lesser working cylinder of maximum output pressure, is just unable to complete
The pressure testing of high pressure causes in the prior art, to cover entire pressure testing range, it usually needs prepare at least two
Working cylinder exports the different pressure testing machine of tonnage, and not only occupied area is larger, also considerably increases the experimentation cost of producer.
Summary of the invention
The purpose of the present invention is to provide the pressure testing machines that a kind of maximum output pressure can be changed.
In order to solve the above technical problems, the technical solution in the present invention is as follows:
A kind of pressure testing machine, including rack, rack include pedestal, the column group of left, center, right three are provided on pedestal, each
Column group includes former and later two columns, is provided with crossbeam on six columns, on crossbeam between left column group and central post group
It is provided with the left working cylinder being vertically arranged, is provided with the right work being vertically arranged on crossbeam between central post group and right column group
Cylinder.
The maximum output pressure of left working cylinder is 3000 tons, and the maximum output pressure of right working cylinder is 3000 tons.
Pressure testing machine further includes for releasable connection in the pressure plate of left working cylinder, the power output end of right working cylinder.
The beam height regulating mechanism for adjusting beam height is provided between crossbeam and corresponding column.
The invention has the benefit that left working cylinder, right working cylinder are simultaneously operable in the present invention, it can also independent work
Make, can be realized as the output of larger operating pressure when left working cylinder, right working cylinder work at the same time compared to single work cylinder working,
It can be realized the output of smaller operating pressure when single work cylinder working, to cover wider array of pressure limit；In each work
When cylinder works independently, left working cylinder corresponds to four columns of left column group, central post group, and right working cylinder corresponds to central post group, the right side
Four columns of column group, each working cylinder correspond to four columns, while guaranteeing loading procedure stability, two working cylinders
Central post group is shared, the quantity of column is saved, while reducing product size, also reduces the cost of product.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of the present of invention；
Fig. 2 is the cooperation schematic diagram of Fig. 1 middle cross beam and left column group, central post group, right column group and pressure plate；
Fig. 3 is the cooperation schematic diagram of lateral loading mechanism and shear plate in Fig. 1；
Fig. 4 is the top view of Fig. 3.
Specific embodiment
A kind of implementation of pressure testing machine is for example shown in Fig. 1 ~ 4: including pedestal 26, bilateral symmetry cloth is provided on pedestal 26
Left column group 2, central post group 4 and the right column group 1 set, left column group 2, central post group 4 and right column group 1 are including before two
Spaced apart column 3 afterwards.Pressure testing machine further includes the crossbeam 9 that guiding movement is assemblied on each column, and crossbeam is one whole
The slab structure of body, crossbeam 9 and left column group 2, right column group 1 corresponding column between be provided with for adjusting beam height
Beam height regulating mechanism 11.
The left working cylinder 12 being vertically arranged is fixed on crossbeam 9 between left column group and central post group, on crossbeam 9 in
The right working cylinder 27 being vertically arranged is fixed between column group and right column group, that is to say, that when each working cylinder works independently,
Corresponding four columns of each working cylinder realize counter-force, while two of the also shared central post group of the counter-force of the cylinder of two work are vertical
Column.In the present embodiment, left working cylinder 12, right working cylinder 27 are the hydraulic cylinder that maximum output pressure is 3000 tons.Left working cylinder
Piston rod on be hinged with left force transmitting board 23, right force transmitting board 21, left force transmitting board, right biography are hinged on the piston rod of right working cylinder 27
The hinge axes of power plate are extended along the longitudinal direction, and left force transmitting board constitutes the power output end of left working cylinder, right force transmitting board structure
At the power output end of right working cylinder.Pressure testing machine further includes for releasable connection in left working cylinder, the power of right working cylinder
The pressure plate 22 of output end, in the present embodiment, pressure plate 22 passes through the connection bolt 20 being vertically arranged and is connected to left force transmitting board 23
With the lower end of right force transmitting board 21.
Beam height regulating mechanism 11 includes being set to climbing on the correspondence column of left column group, right column group for crossbeam
The lock tooth 18 risen, beam height regulating mechanism further include upper holding card 6 and lower holding card, and lower holding card includes guiding movement along the vertical direction
The lower holding card support 16 being assemblied on corresponding column offers realization on lower holding card support 16 and corresponding guide pillar is mobile cooperates
Holding card pilot hole, guiding movement is equipped with the lower holding card closing piece for cooperating with lock tooth 18 in left-right direction on lower holding card support
17, the upper and lower ends of lower holding card closing piece 17 are fixed with the lower holding card guide rod 15 that axis extends in left-right direction, lower holding card support
On offer and realize the guide rod pilot hole that is oriented to lower holding card closing piece and cooperating with lower 15 guiding movement of holding card guide rod,
Downward holding card closing piece is provided between lower holding card closing piece 17 and lower holding card support 16 to apply towards corresponding lock tooth direction active force
Lower holding card locking spring 14, lower holding card locking spring 14 are sheathed on corresponding lower holding card guide rod 15, on lower holding card support 16
It is additionally provided with horizontally disposed be connected under downward holding card closing piece output left and right directions active force with the transmission of lower holding card closing piece 17
Holding card hydraulic cylinder 13.Upper holding card 6 includes the upper holding card support being fixed on crossbeam, guiding shifting in left-right direction on upper holding card support
It is dynamic to be equipped with for the upper holding card closing piece 8 with lock tooth cooperation, upward holding card is provided between upper holding card closing piece 8 and upper holding card support
Closing piece applies the upper holding card locking spring 5 towards corresponding lock tooth direction active force, is provided on upper holding card support horizontally disposed
It is connected with the transmission of upper holding card closing piece with the upper holding card hydraulic cylinder 7 of upward holding card closing piece output left and right directions active force.Lower holding card branch
Seat and upper holding card support (or between crossbeam) are provided with the jacking hydraulic cylinder 10 being vertically arranged.Upper holding card closing piece, lower holding card closing piece
It is the toothed plate structure being vertically arranged with multiple teeth.
The specific work process of beam height regulating mechanism is as follows: when not needing to be tested, crossbeam is not by a left side at this time
The vertical reaction force of working cylinder, right working cylinder, jacking hydraulic cylinder 10, upper holding card hydraulic cylinder 7 and lower holding card hydraulic cylinder 13 are not
Work, under the action of upper holding card locking spring, upper holding card closing piece 8 is locked with lock tooth 18, and beam height position is consolidated in realization
Fixed, under the action of lower holding card locking spring, lower holding card closing piece 17 consolidates lower holding card height and position with lock tooth locking, realization
It is fixed.When needing to adjust the position of crossbeam, the lower downward holding card closing piece of holding card hydraulic cylinder applies the active force towards corresponding lock tooth, under
For holding card closing piece with lock tooth locking under the action of lower holding card hydraulic cylinder, the upper upward holding card of holding card hydraulic cylinder, which applies towards separate, corresponds to lock
The active force in tooth direction, upper holding card closing piece and lock tooth disengage, and jacking hydraulic cylinder jacks holding card support upwards, and crossbeam can be upward
Mobile adjustment, then the upper upward holding card closing piece of holding card hydraulic cylinder applies the active force towards corresponding lock tooth direction, upper holding card closing piece
Realize that the position of crossbeam is fixed with lock tooth locking；The lower downward holding card of holding card hydraulic cylinder applies towards the effect far from corresponding lock tooth direction
Power, lower holding card closing piece and lock tooth are detached from, and jacking hydraulic cylinder retracts, then can driving lower holding card, step-by-step movement is walked upward, are so followed
The adjustment height of crossbeam step by step may be implemented in ring.When needing to carry out compression-shear test, upper holding card closing piece is hydraulic in upper holding card
It is locked under the action of cylinder with lock tooth, therefore biggish vertical active force can be undertaken.
Pressure testing machine further include horizontally disposed shear plate 32 and for shear plate apply horizontal direction active force
Lateral loading mechanism, lateral loading mechanism include the lateral loading mechanism bracket being fixed on pedestal, are set on loading mechanism bracket
It is equipped with shear cylinder elevating mechanism, shear cylinder elevating mechanism is a lift cylinders 43, is fixed with mounting base on the piston rod of lift cylinders
42, lateral loading mechanism includes the preceding shear cylinder 28, intermediate shear cylinder 29 and rear shear cylinder 30 being sequentially arranged in juxtaposition from front to back,
In the present embodiment, the hydraulic cylinder that preceding shear cylinder 28, intermediate shear cylinder 29 and rear shear cylinder 30 are 300 tons of maximum output power, and in
Between shear cylinder be in the middle part on 32 front-rear direction of shear plate, preceding shear cylinder, rear shear cylinder are symmetrically arranged in intermediate shear cylinder
The left and right sides.Preceding shear cylinder, intermediate shear cylinder, rear shear cylinder are double-outlet cylinder, preceding shear cylinder, intermediate shear cylinder, after cut
The piston rod 39 for cutting cylinder is connected by the first articulated structure with shear plate 32, and preceding shear cylinder, intermediate shear cylinder, rear shear cylinder pass through
Second articulated structure is connected with the mounting base of lateral loading mechanism bracket, and the first articulated structure, the second articulated structure all have axis
The hinge axes that line vertically extends.In the present embodiment, the first articulated structure includes being fixed on cutting on shear plate 32
Cutting plate connecting plate 38, the first articulated structure further include being fixed on being located on shear plate connecting plate on the piston rod of corresponding shear cylinder
The upper junction plate 36 and lower connecting plate 37 of lower two sides, the spacing between upper and lower connecting plate are greater than the height of shear plate connecting plate, the
One articulated structure further includes the connection pin shaft 35 being threaded between shear plate connecting plate and upper junction plate, lower connecting plate, connecting pin
Axis 35 can take out from the bottom to top.
Second articulated structure includes turn that the pivot center being fixed on the cylinder body of corresponding shear cylinder vertically extends
Moving axis 40 is provided with the rotating shaft base 41 for corresponding rotation axis anticreep installation in mounting base, in other embodiments of the invention,
Second articulated structure is also possible to spherical hinge structure.
Preceding shear cylinder, the piston rod of rear shear cylinder are connected by articulated linkage 51 far from one end of the first articulated structure, hinge
One end of connective pole and the piston rod of preceding shear cylinder are hinged and connected, the piston rod of the other end of articulated linkage 51 and rear shear cylinder
It is hinged and connected, articulated linkage 51, preceding shear cylinder, rear shear cylinder and shear plate together form a parallelogram connection-rod machine
The torsional shear examination of one small tonnage power output may be implemented in structure, under this scenario, preceding shear cylinder or rear shear cylinder single movement
It tests, preceding shear cylinder, rear shear cylinder act in the opposite direction simultaneously, and the torsional shear examination of a large-tonnage power output may be implemented
It tests.
Pressure testing machine can complete double shear experiment to rubber support in the present embodiment, and double shear experiment refers in shear plate 32
Two sides up and down have rubber support 31, the rubber support 31 of downside is placed on workbench 33, and left working cylinder, right working cylinder pass through
The rubber support 31 of 22 pairs of pressure plate upside presses vertical loading force, to simulate bridge weight, when needing 300 tons and the shearing of following tonnage
When power exports, intermediate shear cylinder is only needed to act, preceding shear cylinder, rear shear cylinder do not work, and are servo-actuated, cut before can also pulling out certainly
The connection pin shaft between cylinder, rear shear cylinder and shear plate is cut, dynamic shear test both may be implemented under this state or may be implemented
Static shear test；When needing 300-600 tons of shearing force output, intermediate shear cylinder does not work, and can pull out intermediate shear cylinder
Connection pin shaft between shear plate, preceding shear cylinder, rear shear cylinder synchronization action, to generate active force to shear plate；Work as needs
When 600-900 tons of shearing force output, three shear cylinders work.Lateral loading mechanism in certain the present embodiment can also carry out
Horizontal torsion shearing test, intermediate shear cylinder do not work, and a shear cylinder applies shear plate and draws in preceding shear cylinder, rear shear cylinder
Power, a shear cylinder apply thrust to shear plate, and shear plate may be implemented to rubber support torsional shear, so that simulation is distinguishingly
Shake the stress of the rubber support under environment.In other embodiments of the invention, preceding shear cylinder, intermediate shear cylinder and rear shear cylinder
It can also be the hydraulic cylinder of single pole output；Preceding shear cylinder, intermediate shear cylinder, rear shear cylinder maximum output power can also be different
Cause, preceding shear cylinder, intermediate shear cylinder, rear shear cylinder maximum output power may not be 300 tons, such as carry out as needed
Setting.
When needing to carry out 5000 tons, 6000 tons of vertical loading forces, workpiece to be tested is placed in the downside of 22 plates of pressure, it is left
Working cylinder, right working cylinder simultaneously operation, may be implemented the output of maximum 6000 tons of pressure, for example complete the resistance to compression of rubber support 31
Test；Certain two working cylinders can also be different step movement and can complete at this time pair so that pressure plate generates a tilt angle
The corner test of rubber support.When needing to carry out 1000 tons, 2000 tons of pressure testings, pressure plate of dismantling, single working cylinder is same
Step movement can complete pressure testing.Two groups of pillar constructions increase the whole anti-torsion ability of the testing machine, two low tons
The working cylinder of position realizes high tonnage operating pressure output jointly, can very easily solve cylinder diameter, active force and hydraulic system pressure
Power problem both can choose super-pressure or can choose conventional high-pressure；Two working cylinders may be implemented to make one equipment more
Purpose substantially increases the utilization rate and productivity of equipment.In other embodiments of the invention: two working cylinders are most
Big output pressure can also be different.
Claims (4)
1. a kind of pressure testing machine, including rack, rack includes pedestal, it is characterised in that: left, center, right three are provided on pedestal
A column group, each column group include former and later two columns, are provided with crossbeam on six columns, on crossbeam in left column group with
It is provided with the left working cylinder being vertically arranged between central post group, is provided between central post group and right column group on crossbeam vertical
The right working cylinder of arrangement.
2. pressure testing machine according to claim 1, it is characterised in that: the maximum output pressure of left working cylinder is 3000
Ton, the maximum output pressure of right working cylinder are 3000 tons.
3. pressure testing machine according to claim 1, it is characterised in that: pressure testing machine further include for releasable connection in
Left working cylinder, right working cylinder power output end pressure plate.
4. pressure testing machine described in any one according to claim 1 ~ 3, it is characterised in that: set between crossbeam and corresponding column
It is equipped with the beam height regulating mechanism for adjusting beam height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910521448.0A CN110220795B (en) | 2019-06-17 | Pressure testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910521448.0A CN110220795B (en) | 2019-06-17 | Pressure testing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110220795A true CN110220795A (en) | 2019-09-10 |
| CN110220795B CN110220795B (en) | 2024-05-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110836821A (en) * | 2019-12-09 | 2020-02-25 | 河南交通职业技术学院 | Compression-shear testing machine and vertical loading device thereof |
| CN114112630A (en) * | 2021-11-17 | 2022-03-01 | 洛阳双瑞特种装备有限公司 | Test device and method for measuring horizontal performance of rubber support in vertical loading mode |
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