CN105067217B - A kind of mechanical device of parts repeated impact test - Google Patents
A kind of mechanical device of parts repeated impact test Download PDFInfo
- Publication number
- CN105067217B CN105067217B CN201510554076.3A CN201510554076A CN105067217B CN 105067217 B CN105067217 B CN 105067217B CN 201510554076 A CN201510554076 A CN 201510554076A CN 105067217 B CN105067217 B CN 105067217B
- Authority
- CN
- China
- Prior art keywords
- cylinder
- cylinder barrel
- pin bushing
- assembly
- guide pin
- 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.)
- Active
Links
Abstract
The present invention provides a kind of mechanical device of parts repeated impact test, including T-shaped support, cylinder saddle is installed with the horizonal base plate of the T-shaped support, execution cylinder is connected with the cylinder saddle, the cylinder end of the execution cylinder is connected by single pole oscillating bearing with tripping mechanism assembly；The tripping mechanism assembly top is connected with the cylinder barrel bracket being fixedly arranged in the vertical struts of the T-shaped support；The top of the vertical struts of the T-shaped support is installed with guiding trestle, and the guiding trestle is provided with guide wheel.Present apparatus small volume, space are small, and magnitude of load can adjust, and can simulate the actual loading situation of related components；And its detection process is controllable, failure observation and it is easy to detect.In addition, the present apparatus is fully mechanical structure, reliability is high, makes and experimentation cost is all relatively low.
Description
Technical field
The present invention relates to repeated impact test device, and in particular to a kind of mechanical device of parts repeated impact test.
Background technology
Fork truck parts often bear the circulation impact effect of certain load in its life cycle, and the time is grown, and zero
Part can produce fatigue damage, so as to cause failure to use.For example, the steel cylinder bracket that liquefied gas fork truck uses, is taking a breath
During can be impacted by full gas cylinder；Complete machine is in jolt block and stacking operation process is crossed, the dependent part of door frame and vehicle frame
Position can be by impact from ground and stacking goods etc.；The parts such as fork truck steel cylinder bracket, door frame and vehicle frame, using
Cheng Zhong, due to the ringing of shock loading, it frequently can lead to it and the failure such as weld seam tear occur, have a strong impact on the use of vehicle
And security.So shadow of such a impact to parts weak spot is fast and effeciently detected using research technique before dispatching from the factory
Ring, so as to judge whether its life-span meets to design needs, the improvement and upgrading of product will be effectively facilitated, accelerate what it was introduced to the market
Speed.
The repeated impact test of parts is simulated at present, realized often through big suction electromagnet, its space
Greatly, testing expenses are high；And the experimental rig of fully mechanical, due to lacking quick-release mechanism, test load oneself can not be realized
By impacting；Coordinate the quick correlation test for abandoning valve progress using cylinder, because cylinder itself has vapour lock, effect is undesirable,
It is difficult to the accurate weak spot for finding parts, have impact on the progress of product improvement upgrading.
The content of the invention
The purpose of the present invention is exactly to solve above-mentioned problem, there is provided a kind of machine of parts repeated impact test
Tool device.Load freely impacting to parts is realized, verifies the impact fatigue behavior of parts, it is weak to search parts
Point.
The technical scheme is that：
A kind of mechanical device of parts repeated impact test, including T-shaped support, on the horizonal base plate of the T-shaped support
Cylinder saddle is installed with, execution cylinder is connected with the cylinder saddle, the cylinder end of the execution cylinder passes through single pole joint
Bearing is connected with tripping mechanism assembly；The tripping mechanism assembly top is with being fixedly arranged in the vertical struts of the T-shaped support
Cylinder barrel bracket connects；The top of the vertical struts of the T-shaped support is installed with guiding trestle, and the guiding trestle is provided with and led
Wheel.
Further scheme, the both ends of the single pole oscillating bearing pass through locking nut and tripping mechanism assembly and execution respectively
The cylinder end connection of cylinder；The cylinder barrel bracket is spill, and its two side ends is respectively provided with the ear of connection tripping mechanism assembly
Seat axle sleeve.
Further scheme, the tripping mechanism assembly include hollow cylinder barrel, dropout are arranged with the bottom of the cylinder barrel
Guide pin bushing, the dropout guide pin bushing internal sleeve are provided with guide pillar assembly；Piston assembly is cased with the top of the cylinder barrel；Pass through execution cylinder
Flexible realize the rapid abutting joint or Quick release between guide pillar assembly and piston assembly；The top of the cylinder barrel is installed with top
Lid；The top outer end of the cylinder barrel is installed with ships and resell on another market with what the cylinder barrel bracket was connected.
Further scheme, the kidney slot for observation is offered on the cylinder barrel.
Further scheme, the dropout guide pin bushing are connected by the bottom of screw and cylinder barrel；The top cover passes through screw
It is connected with the top of cylinder barrel.
Further scheme, the guide pillar assembly include the guide pillar being connected with the single pole oscillating bearing, the top of the guide pillar
Interior counterbore is offered among end, lower latch spring is installed with the interior counterbore；The top of guide pillar is fixedly connected with lock guide pin bushing；
The lock guide pin bushing internal vertical is provided with transit joint；The top of the transit joint is connected with quick change male contact, bottom passes through
Latch guide pin bushing bottom and be located at the top of the lower latch spring；Transit joint between lock guide pin bushing and quick change male contact
On be arranged with latch spring.
The bottom of the transit joint is fixed on the bottom face of lock guide pin bushing by fixing nut.
The piston assembly includes the screw thread hanger for joint test load, the bottom of the screw thread hanger and piston
It is fixedly connected after bottom is fixedly connected and through piston with quick change famale connector；In the latch closure ring of the quick change famale connector bottom periphery
Dropout Hough pair is arranged with, the periphery bottom of the dropout Hough pair is provided with dropout boss；Positioned at the screw thread hanger of upper piston area
On be arranged with buffer spring, be installed with the screw thread hanger of buffer spring upper end for spacing loose rib and standard gear
Circle.
Quick change famale connector and quick change male contact in the present invention are hydraulic quick connectors pair, are standardized products.Wherein quick change
Famale connector bottom is latched provided with steel ball, and the releasing ring on quick change famale connector is acted on by external force to run up, and connects quick change sun
Head enters inside quick change famale connector, realizes that groove is docked or separated with quick change famale connector steel ball lock on quick change male contact,
Then self-return is latched releasing ring under the action of the spring.
T-shaped support in the present invention is the carrier of remaining parts installation, and execution cylinder provides the dynamic of whole experimental rig
Power, the effect of single pole oscillating bearing is the axial deviation between the execution cylinder and tripping mechanism assembly eliminated, to ensure power
It is normal to transmit.Tripping mechanism assembly is the core institution of the device, joint test load, while realize the quick release of load,
Reach the purpose to parts repeated impact test.
The endoporus of dropout guide pin bushing in the present invention is engaged with the cylindrical of guide pillar, so as to realize the guiding of whole device；Separately
Outside, dropout guide pin bushing also achieves the disengagement action between piston assembly and guide pillar assembly.
The endoporus of cylinder barrel and the cylindrical of piston are coordinated by gap, ensure that guide pillar assembly with piston assembly in motion process
Middle precise positioning, improve the reliability of rapid abutting joint.
Ship and resell on another market and be welded on cylinder barrel outer wall and be connected with ear mount axle sleeve, because ear mount axle sleeve is actively installed on cylinder barrel bracket, institute
With being used cooperatively for cylinder barrel bracket and ear mount axle sleeve, tripping mechanism assembly is rotated freely within the specific limits, avoid whole
There is phenomena such as stuck in mechanism.
End cap periphery is attached by screw and cylinder barrel, and screw thread hanger is located at screw thread hanger and work in hole among end cap
Buffer spring between plug is the power in return stroke for absorption test load, plays a part of buffering.Screw thread hanger
Middle part be arranged provided with loose rib, contacted by loose rib with end cap and realize the spacing of piston assembly；The middle part card of screw thread hanger
Provided with for carrying out spacing standard back-up ring to buffer spring profit.
The bottom of the transit joint passes through the Excircle machining face of lock guide pin bushing bottom through-hole, through hole internal diameter and transit joint
Coordinated, ensure that quick change male contact in the total precise positioning of motion process.
The present invention is a fully mechanical parts impact fatigue testing machine tool device, and the device is mainly using hydraulic pressure with soon
Changing-over head pair and corresponding mechanical mechanism design to form quick-release mechanism assembly.By being connected on quick-release mechanism assembly
Test load, realize load freely impacting to parts, it is achieved thereby that test load is freely impacted, reach checking
The purpose of the impact fatigue behavior of parts, so as to find out the weak spot of each parts, improve the use of parts and vehicle
Security, the improvement and upgrading of product are effectively facilitated, accelerate its speed introduced to the market.The present apparatus also expansible be used as falls examination
Experiment device carries out parts fall-down test.
The present apparatus is fixed in track by T-bolt, by rope joint test load to screw thread hanger, connecting phase
Gas circuit component and electric controling element are closed, it is necessary for checking the integrality that weld seam and structure are confirmed by the presentation quality of test specimen
When to doing defect detecting test by examination parts.Seen if there is forever once by test specimen every 1 hour observation in detection process
The failure conditions such as long property deformation and weld seam tear, until experiment reaches defined number.
So advantages of the present invention has：
The present apparatus is to detect the impact fatigue behavior of related components, and its small volume, space are small, and load is big
It is small adjustable, the actual loading situation of related components can be simulated.In addition, the detection process of the present apparatus is controllable, failure observation and
It is easy to detect.Versatile, the expansible fall-down test for carrying out related components of the present apparatus.The present apparatus is fully mechanical knot
Structure, reliability is high, makes and experimentation cost is all relatively low.
Brief description of the drawings
The present invention is described in further detail below in conjunction with the accompanying drawings：
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the tripping mechanism assembly structure schematic diagram in the present invention；
Fig. 3 is the guide pillar assembly structure schematic diagram in the present invention；
Fig. 4 is the piston assembly structural representation in the present invention.
In figure：1-T type supports, 2- cylinder saddles, 3- execution cylinders, 4- single pole oscillating bearings, 5- tripping mechanism assemblies：
51- kidney slots, 52- guide pillars assembly, 53- dropouts guide pin bushing, 54- screws, 55- cylinder barrels, 56- ship and resell on another market, 57- piston assemblies, 58- ends
Latch spring, 523- fixing nuts, 524- transit joints, 525- quick changes male contact, 526- lock under lid, 521- guide pillars, 522-
Button spring, 527- lock guide pin bushing, 571- dropouts boss, 572- dropouts Hough to, 573- quick changes famale connector, 574- pistons, 575-
Loose rib, 576- standards back-up ring, 577- buffer springs, 578- screw thread hangers, 6- cylinder barrel brackets, 7- ear mount axle sleeves, 8- are oriented to branch
Frame, 9- guide wheels.
Embodiment
As shown in figure 1, a kind of mechanical device of parts repeated impact test, including T-shaped support 1, the T-shaped support 1
Horizonal base plate on be installed with cylinder saddle 2, execution cylinder 3, the gas of the execution cylinder 3 are connected with the cylinder saddle 2
Cylinder end is connected by single pole oscillating bearing 4 with tripping mechanism assembly 5；The top of tripping mechanism assembly 5 is described T-shaped with being fixedly arranged on
Cylinder barrel bracket 6 in the vertical struts of support 1 connects；The top of the vertical struts of the T-shaped support 1 is installed with guiding trestle 8,
The guiding trestle 8 is provided with guide wheel 9.
Test load is connected by rope with the upper end of tripping mechanism assembly 5, and rope is oriented to by guide wheel 9, is improved
The accuracy of experiment.
Further scheme, the both ends of the single pole oscillating bearing 4 respectively by locking nut and tripping mechanism assembly 5, hold
The cylinder end connection of promoting the circulation of qi cylinder 3；The cylinder barrel bracket 6 is spill, and its two side ends is respectively provided with connection tripping mechanism assembly 5
Ear mount axle sleeve 7.
As shown in Fig. 2 tripping mechanism assembly 5 includes hollow cylinder barrel 55, dropout is arranged with the bottom of the cylinder barrel 55
Guide pin bushing 53, the internal sleeve of dropout guide pin bushing 53 are provided with guide pillar assembly 52；Piston assembly 57 is cased with the top of the cylinder barrel 55；It is logical
Cross the flexible of execution cylinder 3 and realize the rapid abutting joint or Quick release between guide pillar assembly 52 and piston assembly 57；The cylinder
The top of cylinder 55 is installed with top cover 58；The top outer end of the cylinder barrel 55 be installed be connected with the cylinder barrel bracket 6 ship and resell on another market 56.
Further scheme, the kidney slot 51 for observation is offered on the cylinder barrel 55（As shown in Figure 1）；Ship and resell on another market 56 welding
It is connected in the outer wall of cylinder barrel 55 and with the ear mount axle sleeve 7 being actively installed on cylinder barrel bracket 6, passes through cylinder barrel bracket 6 and ear mount axle sleeve 7
It is used cooperatively, tripping mechanism assembly 6 is rotated freely within the specific limits, avoids whole mechanism from phenomena such as stuck occur.And
And the position of conveniently adjusted cylinder barrel 55, consequently facilitating being observed by kidney slot 51 between guide pillar assembly 52 and piston assembly 57
Rapid abutting joint and disengagement action.
Further scheme, the dropout guide pin bushing 53 are connected by the bottom of screw 54 and cylinder barrel 55；The top cover 58
It is connected by the top of screw 54 and cylinder barrel 55.
As shown in figure 3, guide pillar assembly 52 includes the guide pillar 521 being connected with the single pole oscillating bearing 4, the guide pillar 521
Top among offer interior counterbore, lower latch spring 522 is installed with the interior counterbore；Led with lock on the top of guide pillar 521
Set 527 is fixedly connected；The lock internal vertical of guide pin bushing 527 is provided with transit joint 524；The top of the transit joint 524 is consolidated
Quick change male contact 525, bottom are connected to through the bottom of lock guide pin bushing 527 and positioned at the top of the lower latch spring 522；It is located at
Latch spring 526 is arranged with transit joint 524 between lock guide pin bushing 527 and quick change male contact 525.
Further scheme, the bottom of the transit joint 524 are fixed on the bottom of lock guide pin bushing 527 by fixing nut 523
End face.
As shown in figure 4, piston assembly 57 includes the screw thread hanger 578 for joint test load, the screw thread hanger 578
Bottom be fixedly connected with the bottom of piston 574 after and be fixedly connected with quick change famale connector 573 through piston 574；The quick change
Dropout Hough is arranged with the latch closure ring of the bottom periphery of famale connector 573 to 572, the dropout Hough is set to 572 periphery bottom
There is dropout boss 571；Buffer spring 577 is arranged with the screw thread hanger 578 on the top of piston 574, positioned at buffer spring 577
It is installed with the screw thread hanger 578 of upper end for spacing loose rib 575 and standard back-up ring 576.
The mechanical device of the repeated impact test, concrete operating principle are decomposed as follows：
1st, the rear end air inlet of execution cylinder 3, cylinder piston rod is released, and dropout machine is passed to by single pole oscillating bearing 4
Structure assembly 5；
2nd, the guide effect of dropout guide pin bushing 53, the overall motion upwards of the stress of guide pillar assembly 52, until guide pillar assembly 52 are passed through
On the top of quick change male contact 525 contacted with the quick change famale connector 573 of piston assembly 57；
3rd, piston assembly 57 also moves upwardly together in the presence of the thrust of guide pillar assembly 52, until the top of piston 574
It is in contact, realizes spacing with end cap 58；
4th, because the releasing ring of quick change famale connector 573 does not disengage, as the piston rod of execution cylinder 3 continues to release, then lead
Upper latch spring 536 and lower latch spring 522 on post assembly 52 are compressed, and then quick change male contact 525 continues up,
Until the top end face of lock guide pin bushing 527 is in contact with dropout Hough to the dropout boss 571 on 572；
5th, as the piston rod of execution cylinder 3 continues to release, then latch guide pin bushing 527 promote dropout Hough to 572 together to
Upper motion, then drive the releasing ring on quick change famale connector 573 to move and thread off upwards, quick change male contact 525 is entered quick change
Docked inside famale connector 573；Now because the position-limiting action of end cap 58, overall athletic performance upwards terminate；
6th, by electrical control, the front end airflow of execution cylinder 3 is switched to, the entirety of its piston rod drive guide pillar assembly 52 is downwards
Motion；
7th, because the rigidity of upper latch spring 536 and lower latch spring 522 is more than on quick change famale connector 573 in releasing ring
Spring so that the end face of lock guide pin bushing 527 separates with dropout Hough to the dropout boss 571 on 572, and quick change male contact 525
Mated condition is kept with quick change famale connector 573；
8th, execution cylinder 3 continues to make the releasing ring return on quick change famale connector 573 after shrinking, then the He of quick change male contact 525
Quick change famale connector 573 is locked；
9th, piston assembly 57 is moved downwardly together in the presence of execution cylinder 3 with guide pillar assembly 52, while pulls connection
Test load in piston assembly 57, until upper surface of the dropout Hough to the dropout boss 571 on 572 and dropout guide pin bushing 53
It is in contact；
10th, as execution cylinder continues to act on, dropout guide pin bushing 53 is by dropout boss 571 by quick change famale connector 573
Releasing ring upwards open by top, after releasing ring reaches certain position, quick change male contact（28）With change famale connector（30）Unlock and separate；
11st, piston assembly 57 separates under the reaction of test load with guide pillar assembly 52, and piston assembly 57 is in cylinder barrel 55
Guide effect under move upwards；
12nd, after loose rib 575 contacts with end cap 58, buffer spring 577 is then compressed, and realizes the kinetic energy of piston assembly 57
Steady release, avoid integrally producing device impact；A do action is completed, this lasting progress, until terminating.
Above example is not limited only to protection scope of the present invention, all to be repaiied based on basic thoughts of the invention
Change or what is changed belongs to protection scope of the present invention.
Claims (6)
1. a kind of mechanical device of parts repeated impact test, including T-shaped support（1）, it is characterised in that：The T-shaped support
（1）Horizonal base plate on be installed with cylinder saddle（2）, the cylinder saddle（2）On be connected with execution cylinder（3）, the execution
Cylinder（3）Cylinder end pass through single pole oscillating bearing（4）With tripping mechanism assembly（5）Connection；The tripping mechanism assembly（5）On
Portion is with being fixedly arranged on the T-shaped support（1）Vertical struts on cylinder barrel bracket（6）Connection；The T-shaped support（1）Vertical branch
The top of bar is installed with guiding trestle（8）, the guiding trestle（8）It is provided with guide wheel（9）；The tripping mechanism assembly（5）Bag
Include hollow cylinder barrel（55）, the cylinder barrel（55）Bottom in be arranged with dropout guide pin bushing（53）, the dropout guide pin bushing（53）It is internal
It is arranged with guide pillar assembly（52）；The cylinder barrel（55）Top in be cased with piston assembly（57）；Pass through execution cylinder（3）It is flexible
To realize guide pillar assembly（52）And piston assembly（57）Between rapid abutting joint or Quick release；The guide pillar assembly（52）Including
With the single pole oscillating bearing（4）The guide pillar of connection（521）, the guide pillar（521）Top among offer interior counterbore, it is described
Lower latch spring is installed with interior counterbore（522）；Guide pillar（521）Top with lock guide pin bushing（527）It is fixedly connected；The lock
Guide pin bushing（527）Internal vertical is provided with transit joint（524）；The transit joint（524）Top be connected with quick change male contact
（525）, bottom through lock guide pin bushing（527）Bottom and be located at the lower latch spring（522）Top；Positioned at lock guide pin bushing
（527）With quick change male contact（525）Between transit joint（524）On be arranged with latch spring（526）；The piston assembly
（57）Including the screw thread hanger for joint test load（578）, the screw thread hanger（578）Bottom and piston（574）'s
Bottom is fixedly connected afterwards and passes through piston（574）With quick change famale connector（573）It is fixedly connected；The quick change famale connector（573）Bottom
Hold in the latch closure ring of periphery and be arranged with dropout Hough pair（572）, the dropout Hough pair（572）Periphery bottom be provided with thread off it is convex
Platform（571）；Positioned at piston（574）The screw thread hanger on top（578）On be arranged with buffer spring（577）, positioned at buffer spring
（577）The screw thread hanger of upper end（578）On be installed with for spacing loose rib（575）With standard back-up ring（576）.
A kind of 2. mechanical device of parts repeated impact test according to claim 1, it is characterised in that：The single pole
Oscillating bearing（4）Both ends pass through locking nut and tripping mechanism assembly respectively（5）And execution cylinder（3）Cylinder end connection；
The cylinder barrel bracket（6）For spill, its two side ends is respectively provided with connection tripping mechanism assembly（5）Ear mount axle sleeve（7）.
A kind of 3. mechanical device of parts repeated impact test according to claim 1, it is characterised in that：The cylinder barrel
（55）Top be installed with top cover（58）；The cylinder barrel（55）Top outer end be installed with and the cylinder barrel bracket（6）Connection
Ship and resell on another market（56）.
A kind of 4. mechanical device of parts repeated impact test according to claim 1, it is characterised in that：The cylinder barrel
（55）On offer kidney slot for observation（51）.
A kind of 5. mechanical device of parts repeated impact test according to claim 3, it is characterised in that：The dropout
Guide pin bushing（53）Pass through screw（54）With cylinder barrel（55）Bottom be connected；The top cover（58）Pass through screw（54）With cylinder barrel
（55）Top be connected.
A kind of 6. mechanical device of parts repeated impact test according to claim 1, it is characterised in that：The transition
Joint（524）Bottom pass through fixing nut（523）It is fixed on lock guide pin bushing（527）Bottom face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510554076.3A CN105067217B (en) | 2015-09-02 | 2015-09-02 | A kind of mechanical device of parts repeated impact test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510554076.3A CN105067217B (en) | 2015-09-02 | 2015-09-02 | A kind of mechanical device of parts repeated impact test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105067217A CN105067217A (en) | 2015-11-18 |
| CN105067217B true CN105067217B (en) | 2017-12-19 |
Family
ID=54496641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510554076.3A Active CN105067217B (en) | 2015-09-02 | 2015-09-02 | A kind of mechanical device of parts repeated impact test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105067217B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053003B (en) * | 2016-07-27 | 2018-12-07 | 博众精工科技股份有限公司 | blocking mechanism |
| CN107101797B (en) * | 2017-06-01 | 2023-08-04 | 南京理工大学 | Cylindrical experimental device for measuring shock resistance of buffer |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013072819A (en) * | 2011-09-28 | 2013-04-22 | Aron Kasei Co Ltd | Shock resistance test device |
| CN103926047A (en) * | 2014-05-06 | 2014-07-16 | 哈尔滨建成集团有限公司 | Packaging box drop test device and method |
| CN204128770U (en) * | 2014-10-14 | 2015-01-28 | 合肥工业大学 | Vertical drop formula impact experiment test platform |
| CN104655386B (en) * | 2015-01-29 | 2017-05-03 | 嘉瑞福(浙江)家具有限公司 | Full-automatic control chair seat impact resistance test device and test method |
| CN204903125U (en) * | 2015-09-02 | 2015-12-23 | 安徽合力股份有限公司 | Experimental mechanical device of spare part impact fatigue |
-
2015
- 2015-09-02 CN CN201510554076.3A patent/CN105067217B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105067217A (en) | 2015-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5932130B2 (en) | Simulated impact type rock experiment equipment | |
| CN105588699B (en) | A kind of hydraulic shock testing machine | |
| CN102288503B (en) | Testing machine for simulating erosion of high-pressure manifold | |
| CN106482942B (en) | A kind of experimental rig that can be achieved laterally and longitudinally to load | |
| CN105067217B (en) | A kind of mechanical device of parts repeated impact test | |
| CN204831774U (en) | Loading device | |
| CN104163250B (en) | A kind of reliability test for undercarriage cabin door lock system | |
| CN103302675A (en) | Flexible manipulator for upper parts of wallboard | |
| CN106903676A (en) | The four-freedom parallel mechanism that a kind of Pneumatic artificial muscle drives | |
| CN202441404U (en) | Anchor bolt support flexible locking structure | |
| CN104075903A (en) | Hydraulic support test device | |
| CN104236881A (en) | Rigid damping testing device | |
| CN204903125U (en) | Experimental mechanical device of spare part impact fatigue | |
| CN204085836U (en) | A kind of Gas Gun formula shock response spectrum testing machine | |
| CN201963321U (en) | Hydraulic bracket, upright post and guide sleeve assembly mechanism | |
| CN101245693B (en) | Drilling rod conveyer for macrotype raise-boring machine | |
| CN102041815A (en) | Tower crane | |
| CN103256014B (en) | It is a kind of for the injection head experimental provision of marine riser will be entered under coiled tubing | |
| CN202471432U (en) | Dynamic compaction test bed | |
| CN101858820A (en) | High-precision two-degrees-of-freedom stable platform | |
| CN106289761A (en) | Warehousing forklift vertical reduction box fatigue experimental device | |
| CN203610957U (en) | Automatic door lock assembling and inspection machine | |
| CN105019853B (en) | Multifunctional combined-type well mouth well-control product testing device | |
| CN206153863U (en) | Buffer assembly fixture containing bellytank | |
| CN204877363U (en) | Many function combination formula well head well control test of products device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |