CN206672500U - Electro-hydraulic servo teaching experimental base loads multistage multiplying assembly - Google Patents
Electro-hydraulic servo teaching experimental base loads multistage multiplying assembly Download PDFInfo
- Publication number
- CN206672500U CN206672500U CN201720147402.3U CN201720147402U CN206672500U CN 206672500 U CN206672500 U CN 206672500U CN 201720147402 U CN201720147402 U CN 201720147402U CN 206672500 U CN206672500 U CN 206672500U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- sliding pair
- expansion link
- load
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A kind of electro-hydraulic servo teaching experimental base loads multistage multiplying assembly, and it is mainly provided with experiment table top：Hydraulic cylinder, one-level load multiplication mechanism, the first sliding pair, secondary loads multiplication mechanism, the second sliding pair and mechanism loading, the mechanism loading mainly include：Load connecting rod, guide rail bracket, protoplasm gauge block, mass, clamp nut, spring and spring supporting bar can be increased.The utility model can solve to be confined to the factors such as lab space, experimental bench area, manufacturing cost, electro-hydraulic servo experimental bench can not simulate some large inertias, the difficulty of high rigidity load system experimental study, can be in limited space, principle is learned according to space mechanism, hydraulic cylinder piston rod output end equivalent load is increased by multistage load multiplication mechanism, meets experiment demand by increasing and decreasing mass with changing spring；This is that a kind of have that simple in construction, easy for installation, cost is cheap and applicability widely loads multiplying assembly.
Description
Technical field
It the utility model is related to the teaching experiment of a kind of fluid and control technology field, particularly electrohydraulic servo-controlling system
Device.
Background technology
Fluid Transmission and Control technology has become the important symbol of a National Industrial development level, cultivates hydraulic technique
The talent is not only needed to carry out theory teaching, and correlation theory is verified with greater need for by many experiments, such as hydraulic power member
Part experimental study, electrohydraulic servo system position/force/speed control experimental study and other increasingly complex electrohydraulic servo systems
Control experiment, these experiments are all built on multi-functional electro-hydraulic servo experimental bench.
When carrying out above-mentioned experimental verification, load system in electrohydraulic servo-controlling system is often reduced to quality spring system
System；The factors such as lab space, experimental bench area, manufacturing cost are confined to, laboratory research object is mostly low inertia, Low rigidity
Load system, which has limited understanding of the researcher to electrohydraulic servo-controlling system and application.
The content of the invention
The purpose of this utility model is to provide one kind can provide large inertia, high rigidity load system for electro-hydraulic servo teaching experiment
The electro-hydraulic servo teaching experimental base of system loads multistage multiplying assembly.
The utility model is mainly provided with experiment table top：Hydraulic cylinder, one-level load multiplication mechanism, the first sliding pair,
Secondary loads multiplication mechanism, the second sliding pair and mechanism loading.Wherein, the hydraulic cylinder lain on experiment table top, its piston rod
End is connected with connecting rod one end, and the connecting rod other end is provided with the perpendicular connected guide pillar in lower end, and the guide pillar is placed in one-level
Load in the strip through-hole in the middle part of multiplication mechanism connecting rod, the connecting rod one end is located on experiment table top by sliding bearing, the connecting rod
The other end is provided with edge strip hole, is provided with expansion link guide pillar in the edge strip hole, the expansion link guide pillar lower end is vertically fixed on the first slip
Secondary expansion link one end, the first sliding pair expansion link pass through the horizontal through hole of the first sliding pair sleeve, and both form the first slip
Pair, the first sliding pair sleeve are fixed on experiment table top, and it is vertical that the first sliding pair expansion link other end also is provided with lower end
The expansion link guide pillar being fixed thereon, the expansion link guide pillar is placed in the bar hole of secondary loads multiplication mechanism connecting rod one end, close
The sliding bearing being fixed on experiment table top, the secondary loads times are arranged below in the secondary loads multiplication mechanism connecting rod in this hole
The other end for increasing mechanism rod also sets a hole, and the guide pillar being connected with the second sliding pair expansion link, and second are provided with bar hole
Sliding pair expansion link is parallel with the first sliding pair expansion link.The level of second sliding pair expansion link through the second sliding pair sleeve is led to
Hole, both form the second sliding pair, and the second sliding pair sleeve is fixed on experiment table top.The second sliding pair expansion link is another
One end is connected with the connecting rod of mechanism loading.Mechanism loading mainly includes：Load connecting rod, guide rail bracket, protoplasm gauge block, matter can be increased
Gauge block, clamp nut, spring and spring supporting bar.Wherein, it is screw rod to load connecting rod, which is provided with the compression spiral shell engaged
Mother, the load connecting rod other end is vertical with protoplasm gauge block side to be connected, and protoplasm gauge block opposite side hangs down with spring supporting bar one end
Straight to be connected, the spring supporting bar other end is placed in the through hole on guide rail bracket riser, and spring supporting bar and load connecting rod
Coaxial line.Spring is cased with spring supporting bar between protoplasm gauge block and guide rail bracket riser.The guide rail bracket being located on experimental bench
Be made up of flat board and the riser that is fixed thereon, and be provided with flat board with it is right above and below load connecting rod and spring supporting bar
The guide rail answered, its width is corresponding with the width of protoplasm gauge block open slot, protoplasm gauge block is slided along guide rail.Rail axis with
The flexible rod axis of first and second sliding pairs and hydraulic cylinder piston rod axis are parallel to each other.Load in protoplasm gauge block side connects
Bar, which is provided with, can increase mass, and it is oblate cylindricality that this, which can increase mass, which is provided with U-shaped opening groove of the opening towards side face, should
The open card of open slot is on guide rail, and U-shaped opening groove bottom land curvature is identical with load connecting rod curvature.It is described to increase quality
Block is at least one, and is listed in load connecting rod, and is positioned by clamp nut thereon.
The utility model has the following advantages that compared with prior art：
The utility model can solve to be confined to the factors such as lab space, experimental bench area, manufacturing cost, and electro-hydraulic servo is real
Some large inertias, the difficulty of high rigidity load system experimental study can not be simulated by testing platform, can be in limited space, according to space
Mechanism principle, hydraulic cylinder piston rod output end equivalent load is increased by multistage load multiplication mechanism, by increasing and decreasing mass
Meet experiment demand with changing spring；To sum up, this is a kind of and applicability cheap with simple in construction, easy for installation, cost
Extensive load multiplying assembly.
Brief description of the drawings
Fig. 1 is the utility model solid simplified schematic diagram.
Fig. 2 is that the utility model overlooks simplified schematic diagram.
Fig. 3 is the three-dimensional simplified schematic diagram of the utility model middle guide frame.
Fig. 4 is the three-dimensional simplified schematic diagram that can increase mass in the utility model.
In figure：1- hydraulic cylinders, 2- connecting rods, 3- sliding bearing A, 4- one-level load multiplication mechanism connecting rod, 5- first are slided
Secondary expansion link, the first sliding pairs of 6- sleeve, 7- sliding bearing B, 8- secondary loads multiplication mechanisms connecting rod, the sliding pairs of 9- second stretch
Bar, the second sliding pairs of 10- sleeve, 11- loads connecting rod, 12- clamp nuts, 13- guide rail brackets, 14- can increase mass, 15- originals
Mass, 16- springs, 17- spring supporting bars.
Embodiment
In the electro-hydraulic servo teaching experimental base shown in Fig. 1 and Fig. 2 loads multistage multiplying assembly simplified schematic diagram, reality is lain in
The hydraulic cylinder 1 tested on table top, its piston rod end are connected with the one end of connecting rod 2, and the connecting rod other end is provided with lower end and hung down with it
Directly connected guide pillar, the guide pillar are placed in the strip through-hole at the middle part of one-level load multiplication mechanism connecting rod 4, and the one end of connecting rod 4 passes through
Sliding bearing A3 is located on experiment table top, and the other end of connecting rod 4 is provided with edge strip hole, and expansion link guide pillar is provided with the edge strip hole, should
Expansion link guide pillar lower end is vertically fixed on the one end of the first sliding pair expansion link 5, and the first sliding pair expansion link slides through first
The horizontal through hole of secondary case cylinder 6, both form the first sliding pair, and the first sliding pair sleeve is fixed on experiment table top, and described the
The one sliding pair expansion link other end also is provided with lower end and is perpendicularly fixed at expansion link guide pillar thereon, and the expansion link guide pillar is placed in two level
In the bar hole for loading the one end of multiplication mechanism connecting rod 8, the secondary loads multiplication mechanism connecting rod close to this hole, which is arranged below, to be fixed on
The sliding bearing B7 on table top is tested, the other end of the secondary loads multiplication mechanism connecting rod 8 also sets a hole, and bar is provided with hole
The guide pillar being connected with the second sliding pair expansion link 9, and the second sliding pair expansion link is parallel with the first sliding pair expansion link.Second
Sliding pair expansion link passes through the horizontal through hole of the second sliding pair sleeve 10, and both form the second sliding pair, the second slip secondary case
Cylinder is fixed on experiment table top.The second sliding pair expansion link other end is connected with the connecting rod of mechanism loading.Load connection
Bar 11 is screw rod, which is provided with the clamp nut 12 engaged, and the load connecting rod other end hangs down with the side of protoplasm gauge block 15
Straight to be connected, protoplasm gauge block opposite side is vertical with the one end of spring supporting bar 17 to be connected, and the spring supporting bar other end is placed in guide rail bracket
In through hole on 13 risers, and spring supporting bar and load connecting rod coaxial line.Between protoplasm gauge block and guide rail bracket riser
Spring supporting bar on be cased with spring 16.The guide rail bracket being located on experimental bench is made up of flat board and the riser being fixed thereon,
As shown in figure 3, and it is provided with flat board and corresponding guide rail, its width and protoplasm above and below load connecting rod and spring supporting bar
The width of gauge block open slot is corresponding.Rail axis rod axis flexible with the first and second sliding pairs and hydraulic cylinder piston rod axis
It is parallel to each other.Mass can be increased by being provided with the load connecting rod of protoplasm gauge block side, and it is oblate cylindricality that this, which can increase mass 14,
As shown in figure 4, which is provided with U-shaped opening groove of the opening towards side face, the open card of the open slot is on guide rail, and U-shaped is opened
Mouth groove bottom land curvature is identical with load connecting rod curvature.The mass that increases is listed in load connecting rod for 4, and by
Clamp nut positioning thereon.
The utility model embodiment is merely to illustrate and explained this patent, but does not limit the purposes of this patent, and
And element is marked in schematic diagram and simply schematically shows element function, the utility model is not construed as limiting, for changing structure
Part shape size, but do not change the load multiplying assembly of structure type, it is intended to be limited solely by within the protection domain of this patent.
Operation principle of the present utility model approximately as：
Due to hydraulic cylinder piston rod axis and the first sliding pair stretch rod axis arrive respectively between sliding bearing axis away from
From into certainty ratio relation, principle is learned according to space mechanism, one-level load multiplication mechanism makes hydraulic cylinder piston rod and the first sliding pair
The output displacement of expansion link, speed, acceleration parameter are corresponding into certainty ratio relation；Similarly, secondary loads multiplication mechanism makes first
Sliding pair expansion link and the second sliding pair expansion link output displacement, speed, acceleration parameter are corresponding into certainty ratio relation；Second slides
Move secondary expansion link to be connected by loading connecting rod with mass, guide rail bracket is fixed on experimental bench, and mass moves along the rail simultaneously
Compress the spring being placed between mass and guide rail bracket；By load equivalent principle, make hydraulic cylinder piston rod end equivalent load multistage
Multiplication.
The course of work of the present utility model approximately as：
One-level load multiplication mechanism includes three tie points, is connected at the first tie point by sliding bearing A with experimental bench,
One-level load multiplication mechanism connecting rod is set to do fixed-axis rotation around experimental bench, the second tie point is connected by connecting rod and hydraulic cylinder piston rod
Connect, connecting rod produces relative slip when device acts on one-level load multiplication mechanism connecting rod, and the 3rd tie point is slided by first
Move secondary expansion link to be connected with the first slip vice mechanism, the first sliding pair expansion link can produce relatively sliding with one-level load multiplication mechanism
It is dynamic.The first tie point to the 3rd tie point distance of one-level load multiplication mechanism is n times of the first tie point to the second tie point,
In hydraulic cylinder piston rod axis direction, the 3rd tie point displacement, speed and acceleration are n times of the second tie point relevant parameter.
Principle is learned according to space mechanism, one-level loads multiplication mechanism and hydraulic cylinder output displacement, speed, acceleration double.First, second
Sliding vice mechanism includes sliding pair expansion link, sliding pair sleeve, and both can produce relative slip when device acts on.Secondary loads
Multiplication mechanism equally includes three tie points, and the first tie point slides vice mechanism by the first sliding pair expansion link and first and connected
Connect, the first sliding pair expansion link can produce relative slip when device acts on secondary loads multiplication mechanism, and the second tie point leads to
Cross sliding bearing B to be connected with experimental bench, secondary loads multiplication mechanism connecting rod is done fixed-axis rotation around experimental bench, the 3rd tie point leads to
Cross the second sliding pair expansion link to be connected with mechanism loading, the second sliding pair expansion link is with secondary loads multiplication mechanism connecting rod in device
Relative slide is produced during effect.The tie point of secondary loads multiplication mechanism the 3rd to the second tie point distance be the first tie point to
M times of two tie point distances, in hydraulic cylinder piston rod axis direction, the 3rd tie point displacement, speed and acceleration are the first companies
M times of contact relevant parameter size.Principle is learned according to space mechanism, secondary loads multiplying assembly is by hydraulic cylinder piston rod carry-out bit
Shifting, speed, acceleration double again.Mechanism loading includes load connecting rod, protoplasm gauge block, can increase mass, guide rail bracket, bullet
The main elements such as spring, spring supporting bar；Load connecting rod one end is connected with the second sliding pair expansion link, the other end and protoplasm gauge block
It is connected；Protoplasm gauge block coordinates with guide rail, and does guide rail direction slip relative to guide rail；Spring supporting bar one end is consolidated with protoplasm gauge block
Even, the other end passes through is perforated on guide rail bracket, and spring is placed on spring supporting bar；When loading multistage multiplying assembly effect, spring branch
Strut moves with mass, and then extrudes the spring being placed between mass and guide rail bracket.Guide rail bracket is secured by bolts in reality
Test on platform, load connecting rod is screw rod, which is provided with the clamp nut engaged, the load connecting rod other end and proper mass
Block side is vertically connected, and when needing to change load quality, can increase mass and be directly clamped among on connecting rod and guide rail, and pass through
Clamp nut compresses.After loading multiplication mechanism by two-stage, the displacement of load connecting rod, speed, acceleration are in mechanism loading
Hydraulic cylinder piston rod displacement, speed, n × m times of acceleration magnitude, by load equivalent principle, hydraulic cylinder piston rod end equivalent negative
Carry (n × m) for mechanism loading load2Times.
Electro-hydraulic servo teaching experimental base loads multistage multiplying assembly, and hydraulic cylinder (1) passes through connecting rod (2) and one-level load times
Increase mechanism rod (4) connection, one-level load multiplication mechanism connecting rod (4) is connected by sliding bearing A (3) with experimental bench, sliding axle
Holding (3) makes one-level load multiplication mechanism to do fixed-axis rotation, due to sliding bearing (3) axis to the first sliding pair expansion link (5)
The distance of axis is sliding bearing (3) axis to n times of the distance of connecting rod (2) axis, and principle, one-level are learned according to space mechanism
Load multiplication mechanism connecting rod (4) hydraulic cylinder (1) output displacement, speed, acceleration double；Sliding pair sleeve (6) is fixed on reality
Test on platform, sliding pair expansion link (5) is along sliding pair sleeve (6) axial-movement；Secondary loads multiplication mechanism connecting rod (8) passes through slip
Bearing B (7) is connected with experimental bench, because sliding bearing B (7) to second sliding pair expansion link (9) distance is sliding bearing B (7)
To m times of the distance of the first sliding pair expansion link (5), principle is learned according to space mechanism, secondary loads multiplying assembly (8) is by hydraulic pressure
Cylinder (1) output displacement, speed, acceleration double again；Sliding pair expansion link (9) is by loading connecting rod (11) and protoplasm gauge block
(15) connect, load quality can increase mass (14) by increase and decrease and be required to realize, can increase mass (14) and protoplasm gauge block
(15) compressed by clamp nut (12)；Mass all moves along guide rail bracket (13) upper rail direction；Spring (16) is placed in spring
On support bar (17), spring supporting bar (17) one end is connected with protoplasm gauge block (15) by screw thread, and the other end passes through guide rail bracket
(13) perforate, be threadedly coupled between adjustment connecting rod (11) and protoplasm gauge block (15), spring (16) compress variation can be changed, entered
And change initial tension of spring；By load equivalent principle, hydraulic cylinder (1) tailpiece of the piston rod equivalent load is the (n of mechanism loading load
×m)2Times.
Claims (1)
1. a kind of electro-hydraulic servo teaching experimental base loads multistage multiplying assembly, it is characterised in that：The liquid lain on experiment table top
Cylinder pressure, its piston rod end are connected with connecting rod one end, and the connecting rod other end is provided with the perpendicular connected guide pillar in lower end, should
Guide pillar is placed in the strip through-hole in the middle part of one-level load multiplication mechanism connecting rod, and the connecting rod one end is located at experimental bench by sliding bearing
On face, the connecting rod other end is provided with edge strip hole, is provided with expansion link guide pillar in the edge strip hole, the expansion link guide pillar lower end is vertically fixed
In first sliding pair expansion link one end, the first sliding pair expansion link passes through the horizontal through hole of the first sliding pair sleeve, both groups
Into the first sliding pair, the first sliding pair sleeve is fixed on experiment table top, and the first sliding pair expansion link other end is also set
There is lower end to be perpendicularly fixed at expansion link guide pillar thereon, the expansion link guide pillar is placed in the bar of secondary loads multiplication mechanism connecting rod one end
In hole, the sliding bearing being fixed on experiment table top is arranged below in the secondary loads multiplication mechanism connecting rod close to this hole, described
The other end of secondary loads multiplication mechanism connecting rod also sets a hole, is provided with bar hole and is led with what the second sliding pair expansion link was connected
Post, and the second sliding pair expansion link is parallel with the first sliding pair expansion link, and the second sliding pair expansion link passes through the second sliding pair
The horizontal through hole of sleeve, both form the second sliding pair, and the second sliding pair sleeve is fixed on experiment table top, and described second slides
The secondary expansion link other end is moved with the connecting rod of mechanism loading to be connected；Load connecting rod is screw rod, which is provided with the pressure engaged
Tight nut, the load connecting rod other end is vertical with protoplasm gauge block side to be connected, protoplasm gauge block opposite side and spring supporting bar one
End is vertical to be connected, and the spring supporting bar other end is placed in the through hole on guide rail bracket riser, and spring supporting bar connects with load
Extension bar coaxial line, spring is cased with the spring supporting bar between protoplasm gauge block and guide rail bracket riser, is located at leading on experimental bench
Rail gantry is made up of flat board and the riser being fixed thereon, and is provided with flat board with loading on connecting rod and spring supporting bar
Guide rail corresponding to lower, its width is corresponding with the width of protoplasm gauge block open slot, and rail axis is stretched with the first and second sliding pairs
Contracting rod axis and hydraulic cylinder piston rod axis are parallel to each other, and quality can be increased by being provided with the load connecting rod of protoplasm gauge block side
Block, it is oblate cylindricality that this, which can increase mass, which is provided with U-shaped opening groove of the opening towards side face, and the open card of the open slot exists
On guide rail, and U-shaped opening groove bottom land curvature is identical with load connecting rod curvature, and the mass that increases is at least one, and
It is listed in load connecting rod, and positioned by clamp nut thereon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720147402.3U CN206672500U (en) | 2017-02-19 | 2017-02-19 | Electro-hydraulic servo teaching experimental base loads multistage multiplying assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720147402.3U CN206672500U (en) | 2017-02-19 | 2017-02-19 | Electro-hydraulic servo teaching experimental base loads multistage multiplying assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206672500U true CN206672500U (en) | 2017-11-24 |
Family
ID=60379169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720147402.3U Withdrawn - After Issue CN206672500U (en) | 2017-02-19 | 2017-02-19 | Electro-hydraulic servo teaching experimental base loads multistage multiplying assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206672500U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106803392A (en) * | 2017-02-19 | 2017-06-06 | 燕山大学 | The multistage multiplying assembly of electro-hydraulic servo teaching experimental base load |
-
2017
- 2017-02-19 CN CN201720147402.3U patent/CN206672500U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106803392A (en) * | 2017-02-19 | 2017-06-06 | 燕山大学 | The multistage multiplying assembly of electro-hydraulic servo teaching experimental base load |
| CN106803392B (en) * | 2017-02-19 | 2022-09-30 | 燕山大学 | Multistage multiplication device for load of electro-hydraulic servo teaching experiment table |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104332086B (en) | A kind of structural mechanics experiment porch | |
| CN108896400B (en) | Structural test system capable of applying tension-compression-bending shear force | |
| CN203365427U (en) | Visual analog simulation experiment table | |
| CN105927617B (en) | A kind of aircraft large hydraulic pressurized strut general-utility test platform | |
| CN103884495A (en) | Enclosed loading framework for multidimensional bearing test on large-scale structural member | |
| CN106704305B (en) | The test system of ultra-high pressure high flow proportional throttle valve | |
| CN206862613U (en) | A kind of lateral power load maintainer of shock absorber performance test | |
| CN206672500U (en) | Electro-hydraulic servo teaching experimental base loads multistage multiplying assembly | |
| CN105547667A (en) | Hydro-pneumatic spring test bench with side force simulation device | |
| CN104614258A (en) | Testing device for contact shear resistance, bending resistance and torsion resistance of hemispherical ideal cementation particles | |
| CN207528551U (en) | For the loading device of tension test | |
| CN104458455B (en) | Narrow base power transmission steel pipe tower space tower leg structured testing method | |
| CN113433008A (en) | Deep level platform welded joint test system | |
| CN206683960U (en) | A kind of axial rigidity of non-adherent flexible conduit and ultimate tensile strength measurement apparatus | |
| CN106803392A (en) | The multistage multiplying assembly of electro-hydraulic servo teaching experimental base load | |
| CN106441952B (en) | Car body tests loading equipemtn | |
| CN203558574U (en) | Automatic stacking mechanism for hydraulic real-training device | |
| CN202485914U (en) | Hydraulic support model experiment table | |
| Kumar et al. | Design & analysis of hydraulic scissor lift | |
| CN104677581B (en) | Charger and the bean column node shock test system based on the charger | |
| CN110987793A (en) | In-situ detection device and detection method for structural adhesive bonding performance of hidden frame glass curtain wall | |
| KR20110094263A (en) | Crackable snubber functional test method and device | |
| CN106128259B (en) | A kind of equivalent material simulating tomography experimental rig and test method | |
| CN105510013A (en) | Side force loading apparatus for hydro-pneumatic spring testing bench | |
| CN103940673A (en) | Longitudinal tensile and compression testing machine for steel rail of railway track |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171124 Effective date of abandoning: 20220930 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20171124 Effective date of abandoning: 20220930 |