CN107727389A - A kind of spring experimental rig - Google Patents
A kind of spring experimental rig Download PDFInfo
- Publication number
- CN107727389A CN107727389A CN201711250352.2A CN201711250352A CN107727389A CN 107727389 A CN107727389 A CN 107727389A CN 201711250352 A CN201711250352 A CN 201711250352A CN 107727389 A CN107727389 A CN 107727389A
- Authority
- CN
- China
- Prior art keywords
- spring
- experimental rig
- bearing
- mobile base
- platen
- 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.)
- Pending
Links
- 238000009434 installation Methods 0.000 claims abstract description 13
- 238000012360 testing method Methods 0.000 claims abstract description 9
- 230000033001 locomotion Effects 0.000 claims description 7
- 238000002474 experimental method Methods 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000009661 fatigue test Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of spring experimental rig, including chassis, the platen being fixed on chassis, institute's spring experimental rig also includes the fixed seat and cylinder installation seat being fixed on platen, the Mobile base being slidably disposed on platen；The force cell being arranged in fixed seat, the oil cylinder being arranged on cylinder installation seat, and oil pump.Spring experimental rig provided by the invention is simple in construction, easily operated, be stressed situation and progress spring fatigue test available for test spring.
Description
Technical field
The present invention relates to spring test equipment technical field, more particularly to a kind of spring experimental rig.
Background technology
Spring is a kind of conventional part, needs to carry out dynamometry, fatigue experiment etc. after the completion of spring manufacture and before dispatching from the factory
Test.Application publication number is that CN 105277345A patent discloses a kind of spring fatigue tester, although can realize to bullet
Spring carries out reciprocating compression to carry out fatigue test, still, because drive mechanism is complicated, causes the spring fatigue tester structure
Complexity, cost is high, and adds the difficulty of maintenance, repair.
It can be seen that prior art could be improved and improve.
The content of the invention
In view of in place of above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of spring experimental rig, it is intended to
Solves in the prior art the technical problem that spring experimental rig is complicated, maintenance is inconvenient.
In order to achieve the above object, this invention takes following technical scheme：
A kind of spring experimental rig, including chassis, the platen being fixed on chassis, it is characterised in that institute's spring experiment dress
Put the fixed seat and cylinder installation seat for also including being fixed on platen, the Mobile base being slidably disposed on platen；It is arranged on
Force cell in fixed seat, the oil cylinder being arranged on cylinder installation seat, and be connected and with oil cylinder for driving movement
The oil pump of seat straight reciprocating motion；The piston rod end of the oil cylinder is connected with Mobile base；The sliding seats in fixed seat and
Between mounting seat.
Two line slide rails are abreast provided with described spring experimental rig, on platen, are divided on each line slide rail
A linear bearing is not slidably provided with；The Mobile base is arranged on two linear bearings.
In described spring experimental rig, the Mobile base includes the bottom plate being fixed on two linear bearings, is arranged on
Two journal stirrups on bottom plate, the pivot being connected with two journal stirrups, and substrate is arranged on towards the of that side of fixed seat
One riser.
In described spring experimental rig, the end of the piston rod of oil cylinder is connected with a connecting rod, and the connecting rod is remote
That one end of oil cylinder offers a circular hole；A bearing is cased with the pivot；The bearing is inserted in the circular hole in connecting rod.
In described spring experimental rig, the fixed seat includes the body that cross section is L-shaped, and one piece second is erected
Plate；At least two guide rods are provided with the vertical side of the body, be provided with the second riser it is identical with the guide rod quantity and
One-to-one guide hole, every guide rod are inserted on the second riser in corresponding guide hole；The force cell is arranged on body
It can be touched on vertical side and by the second riser.
In described spring experimental rig, the starting stave and the second riser are set respectively on that side toward each other
There is a spring supporting frame；Each spring supporting frame includes a horizontal frame respectively, and is arranged on horizontal frame both sides
Vertical frame.
In described spring experimental rig, institute's spring experimental rig also includes controller, the first limit sensors, and
Two limit sensors, and for testing the technical sensor of Mobile base reciprocal time；First limit sensors, second is spacing
Sensor, technical sensor, and oil pump are electrically connected with controller respectively.
In described spring experimental rig, sensor mount, the sensor mount bag are provided with the platen
Two cushion blocks, and two straight-bars being abreast arranged on two cushion blocks are included, there is gap between two straight-bars；Described first
Limit sensors, the second limit sensors and technical sensor are separately positioned on a bearing, and the bottom of each bearing is provided with
One through hole；Each bearing is separately positioned on two straight-bars, and the through hole of each bearing inserts a bolt and from two respectively
The gap of straight-bar passes through and passes through nut check.
In described spring experimental rig, the chassis includes a top frame, and four are separately positioned on top frame corner
The leg at place；Adjacent two leg legs are connected with a bracing piece.
Beneficial effect：
The invention provides a kind of spring experimental rig, compared with prior art, by setting fixed seat, Mobile base on the table
And cylinder installation seat, force cell is set in fixed seat, drives Mobile base to do linear reciprocation by the piston rod of oil cylinder
It is mobile, dynamometry and fatigue test are carried out to spring so as to realize, are not only simple in structure, and easily operated and maintenance, reduce work
The learning difficulty and maintenance difficulties to spring experimental rig of people.
Brief description of the drawings
Fig. 1 is the stereogram of spring experimental rig provided by the invention.
Fig. 2 is the partial enlarged drawing in S1 regions in Fig. 1.
Fig. 3 is the partial enlarged drawing in S2 regions in Fig. 1.
Fig. 4 is the partial enlarged drawing in S3 regions in Fig. 1.
Fig. 5 is the connection diagram of bearing and sensor mount in spring experimental rig provided by the invention.
Fig. 6 is the hydraulic system principle figure of spring experimental rig provided by the invention.
Embodiment
The present invention provides a kind of spring experimental rig, to make the purpose of the present invention, technical scheme and effect clearer, bright
Really, developing simultaneously referring to the drawings, the present invention is described in more detail for embodiment.It should be appreciated that specific implementation described herein
Example is not intended to limit the present invention only to explain the present invention.
Fig. 1 to Fig. 5 is referred to, the present invention provides a kind of spring experimental rig.
Described spring experimental rig includes chassis 1, the platen 2 being fixed on chassis, the fixed seat 3 being fixed on platen
With cylinder installation seat 5, the Mobile base 4 being slidably disposed on platen；The force cell 901 being arranged in fixed seat（Or
Referred to as weighing sensor）, the oil cylinder 6 that is arranged on cylinder installation seat, and be connected and with oil cylinder for driving Mobile base 4 straight
The reciprocating oil pump of line（Not shown in Fig. 1）；The end of piston rod 61 of the oil cylinder is connected with Mobile base 4；The Mobile base 4
Between fixed seat 3 and cylinder installation seat 5.Because oil pump is prior art in itself, therefore oil pump is not drawn into accompanying drawing.Dynamometry
Sensor 901（Or it is weighing sensor）Sheet as prior art, do not repeat the operation principle of force cell herein,
Its particular type/model is not limited.
Referring to Fig. 2, being slidably connected between Mobile base and platen to be accomplished by the following way：Put down on platen 2
Two line slide rails 71 are provided with capablely, and a linear bearing 72 is slidably provided respectively with each line slide rail, it is described
Mobile base 4 is arranged on two linear bearings 72.When cylinder piston rod promotes Mobile base, Mobile base and two linear bearings one
Rise and moved along a straight line relative to line slide rail and platen, is not only simple in structure, and can stably support Mobile base, ensure movement
The stable linear motion of seat.
Please continue to refer to Fig. 2, the Mobile base 4 includes the bottom plate 41 being fixed on two linear bearings, is arranged on bottom plate
On two journal stirrups 42, the pivot 43 being connected with two journal stirrups, and be arranged on substrate towards the of that side of fixed seat
One riser 44.That is, pivot is used to be connected with the piston rod of oil cylinder, and when starting stave is used for work and spring to be tested one
End offsets.
As shown in Fig. 2 further, the end of the piston rod 61 of oil cylinder is connected with a connecting rod, and the connecting rod is remote
That one end of oil cylinder offers a circular hole（Corresponding to the position of Fig. 2 middle (center) bearings 45）；A bearing 45 is cased with the pivot；
The bearing is inserted in the circular hole in connecting rod.The end of the end of connecting rod is provided with screwed hole（Do not observe in accompanying drawing）, oil cylinder
The end set of piston rod has external screw thread（Do not observe in accompanying drawing）, so as to realize the piston rod of the end of extension bar and the oil cylinder
End thread connects.The setting causes to be to be rotatably coupled between connecting rod and pivot so that for oil cylinder in connection procedure
The requirement of the levelness of piston rod reduces so that the connection between the piston rod and Mobile base of oil cylinder is simpler.
Referring to Fig. 3, further, the fixed seat 3 includes the body 31 that cross section is L-shaped, and one piece second is erected
Plate 32；At least two guide rods 33 are provided with the vertical side of the body（2 guide rods 33 are only schematically drawn in Fig. 3）, second
Identical with the guide rod quantity and one-to-one guide hole is provided with riser（Do not observe in figure）, every guide rod insertion second
On riser in corresponding guide hole；The force cell 901 is arranged on the vertical side of body 31 and can touched by the second riser
Encounter.That is, work when, both ends one end of spring to be tested is against on starting stave, and the other end is against on the second riser；Work as bullet
By to after compression, the second riser moves until being offseted with force cell, consequently facilitating force cell is smart spring along guide rod
Really measure pressure value during spring test.
Referring to Fig. 2, further, the starting stave and the second riser are respectively arranged with that side toward each other
One spring supporting frame 39；Each spring supporting frame 39 includes a horizontal frame 391 respectively, and is arranged on horizontal frame two
The vertical frame 392 of side.During work, the both ends of spring to be tested are respectively put into that corresponding spring supporting frame, can be complete
It is complete to avoid the upper surface of spring and workbench that friction occurs to ensure the accuracy of dynamometry, avoid spring and workbench from mutually scraping
Wound.
In practical application, institute's spring experimental rig also includes controller（Not shown in figure）, the first limit sensors
911, the second limit sensors 912, and for testing the technical sensor 913 of Mobile base reciprocal time（As shown in Figure 4）；It is described
First limit sensors, the second limit sensors, technical sensor, and oil pump are electrically connected with controller respectively.That is, described
One limit sensors are used to limit Mobile base shifting towards the extreme position of fixed seat movement, and the second limit sensors are used to limit shifting
Extreme position when dynamic seat is away from fixed seat；Ensure that Mobile base only moves within the specific limits.If Mobile base exceeds
Scope is limited, then controller control oil pump is out of service.
For the ease of the installation of each sensor, sensor mount 8, the sensor installation are provided with the platen
Frame 8 includes two cushion blocks 81（Fig. 4 only observes a cushion block 81）, and two straight-bars being abreast arranged on two cushion blocks
82, there is gap between two straight-bars 82.
Referring to Fig. 5, first limit sensors, the second limit sensors and technical sensor are separately positioned on one
85 on bearing, the bottom of each bearing is provided with a through hole；Each bearing is separately positioned on two straight-bars, and each bearing leads to
Hole inserts a bolt 86 and passes through from the gap of two straight-bars and locked by nut 87 respectively.There is Fig. 1 to understand, two straight-bars
With guide rail parallel, and the outside of a guide rail is arranged on.For different springs to be tested, the moving range of Mobile base not phase
Together, therefore, by the position of each bearing of movement, so as to change the extreme position of Mobile base.During regulation, only it need to unscrew nut,
Bearing is moved to suitable position, then locking nut, it is easy to adjust quick.First limit sensors described above, the
Two limit sensors and technical sensor are preferably close to switch.
Further, the chassis 1 includes a top frame 11, and four legs being separately positioned at top frame corner
12；Adjacent two leg legs are connected with a bracing piece 13.Due to the present invention, the effect of chassis be only intended to supporting platen with
And all parts on platen, even if chassis is arranged into other structures, does not change the essence of technical scheme, also fall into this hair
In bright protection domain.
In practical application, oil pump connects oil pump by oil pipe, and solenoid directional control valve is provided with oil pump（Not shown in figure）, electricity
Magnetic reversal valve is electrically connected with controller.Oil pump should accordingly be provided with fuel tank.The controller is preferably PLC（It is programmable
Logic controller）.
The operation principle of spring experimental rig described briefly below：First according to the specification of spring, each sensor is adjusted
Particular location；The both ends of spring are placed on two spring supporting frames.When carrying out spring pressure test, start oil pump, oil cylinder
Piston rod stretch out and promote Mobile base the second riser offsets with force cell so as to compression spring, now measure spring by
Pressure value.When carrying out testing fatigue, the reciprocal time toward Mobile base is preset in PLC, starts oil pump, PLC control electromagnetism
The break-make of reversal valve is so as to realize that oil pump piston bar reciprocally stretches, and technical sensor is used to record reciprocal time of Mobile base
Number；Until the number that Mobile base moves back and forth reaches default reciprocal time, PLC control oil pumps completion spring fatigue out of service
Experiment.
Fig. 6 is the hydraulic system principle figure of spring experimental rig provided by the invention.In the presence of oil pump 923, hydraulic pressure
Oil is sucked from fuel tank 921, and oil pump 923 is entered after filter 922, is then entered by start-stop valve 924 and choke valve 925
Enter solenoid directional control valve 926, subsequently into oil cylinder 6, so as to promote cylinder piston rod to move.Controller is by controlling solenoid directional control valve
Break-make, so as to control hydraulic pressure disengaging oil cylinder direction, realize that piston rod of oil cylinder or so moves back and forth.
Preferably, the solenoid directional control valve is two-position four-way solenoid directional control valve.
It is understood that for those of ordinary skills, can be with technique according to the invention scheme and its hair
Bright design is subject to equivalent substitution or change, and all these changes or replacement should all belong to the guarantor of appended claims of the invention
Protect scope.
Claims (9)
1. a kind of spring experimental rig, including chassis, the platen being fixed on chassis, it is characterised in that institute's spring experiment
Device also includes the fixed seat and cylinder installation seat being fixed on platen, the Mobile base being slidably disposed on platen；Set
Force cell in fixed seat, the oil cylinder being arranged on cylinder installation seat, and be connected with oil cylinder and moved for driving
The oil pump of dynamic seat straight reciprocating motion；The piston rod end of the oil cylinder is connected with Mobile base；The sliding seats is in fixed seat
Between mounting seat.
2. spring experimental rig according to claim 1, it is characterised in that two straight lines are abreast provided with platen and are slided
Rail, a linear bearing is slidably provided respectively with each line slide rail；The Mobile base is arranged on two linear bearings
On.
3. spring experimental rig according to claim 2, the Mobile base includes the bottom being fixed on two linear bearings
Plate, two journal stirrups being arranged on bottom plate, the pivot being connected with two journal stirrups, and be arranged on substrate towards fixed seat that
The starting stave of side.
4. spring experimental rig according to claim 3, it is characterised in that the end of the piston rod of oil cylinder is connected with one
Connecting rod, that one end of the connecting rod away from oil cylinder offer a circular hole；A bearing is cased with the pivot；The bearing holder (housing, cover)
Enter in the circular hole in connecting rod.
5. spring experimental rig according to claim 2, it is characterised in that the fixed seat includes cross section for L-shaped
Body, and one piece of second riser；At least two guide rods are provided with the vertical side of the body, be provided with the second riser with
The guide rod quantity is identical and one-to-one guide hole, every guide rod are inserted on the second riser in corresponding guide hole；The dynamometry
Sensor is arranged on the vertical side of body and can touched by the second riser.
6. spring experimental rig according to claim 5, it is characterised in that the starting stave and the second riser phase each other
To that side on be respectively arranged with a spring supporting frame；Each spring supporting frame includes a horizontal frame respectively, and
It is arranged on the vertical frame of horizontal frame both sides.
7. spring experimental rig according to claim 1, it is characterised in that institute's spring experimental rig also includes control
Device, the first limit sensors, the second limit sensors, and for testing the technical sensor of Mobile base reciprocal time；Described
One limit sensors, the second limit sensors, technical sensor, and oil pump are electrically connected with controller respectively.
8. spring experimental rig according to claim 7, it is characterised in that sensor installation is provided with the platen
Frame, the sensor mount include two cushion blocks, and two straight-bars being abreast arranged on two cushion blocks, two straight-bars
Between there is gap；First limit sensors, the second limit sensors and technical sensor are separately positioned on a bearing
On, the bottom of each bearing is provided with a through hole；Each bearing is separately positioned on two straight-bars, the through hole difference of each bearing
A piece bolt of insertion simultaneously passes through from the gap of two straight-bars and passes through nut check.
9. spring experimental rig according to claim 1, it is characterised in that the chassis includes a top frame, Yi Jisi
The individual leg being separately positioned at top frame corner；Adjacent two leg legs are connected with a bracing piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711250352.2A CN107727389A (en) | 2017-12-01 | 2017-12-01 | A kind of spring experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711250352.2A CN107727389A (en) | 2017-12-01 | 2017-12-01 | A kind of spring experimental rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107727389A true CN107727389A (en) | 2018-02-23 |
Family
ID=61220879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711250352.2A Pending CN107727389A (en) | 2017-12-01 | 2017-12-01 | A kind of spring experimental rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107727389A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108398253A (en) * | 2018-03-15 | 2018-08-14 | 朱柏艳 | A kind of spring fatigue life test bench installation |
| CN109238668A (en) * | 2018-08-23 | 2019-01-18 | 倪晋挺 | A kind of motor spring detection device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02126135A (en) * | 1988-11-04 | 1990-05-15 | Yokohama Rubber Co Ltd:The | Test equipment for fatigue of viscoelastic body |
| CN201096794Y (en) * | 2007-10-19 | 2008-08-06 | 江苏常宝钢管股份有限公司 | Bidirectional connection pole turning plate machine |
| CN103604590A (en) * | 2013-11-07 | 2014-02-26 | 西安市莲湖区弹簧电器厂 | Strength and fatigue test device of large high pressure spring |
| CN104266675A (en) * | 2014-10-25 | 2015-01-07 | 马钢(集团)控股有限公司 | Detection device for wheel |
| KR101527315B1 (en) * | 2014-01-22 | 2015-06-09 | 한국수력원자력 주식회사 | Device for testing efficiency of spring equipped in air actuator |
| CN105628365A (en) * | 2016-04-14 | 2016-06-01 | 南京航空航天大学 | Spring tension-compression fatigue testing device |
| CN205352719U (en) * | 2015-12-11 | 2016-06-29 | 苏州市凯惠铁路机电有限公司 | Wheel pair running -in test machine |
| CN106855455A (en) * | 2017-01-20 | 2017-06-16 | 彭州市长庆全成技术开发有限公司 | Multi-function spring testing machine |
| CN107036805A (en) * | 2017-06-14 | 2017-08-11 | 苏州科技大学 | Spring anti-fatigue test equipment |
| CN207816572U (en) * | 2017-12-01 | 2018-09-04 | 佛山市子活力弹簧有限公司 | A kind of spring experimental rig |
-
2017
- 2017-12-01 CN CN201711250352.2A patent/CN107727389A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02126135A (en) * | 1988-11-04 | 1990-05-15 | Yokohama Rubber Co Ltd:The | Test equipment for fatigue of viscoelastic body |
| CN201096794Y (en) * | 2007-10-19 | 2008-08-06 | 江苏常宝钢管股份有限公司 | Bidirectional connection pole turning plate machine |
| CN103604590A (en) * | 2013-11-07 | 2014-02-26 | 西安市莲湖区弹簧电器厂 | Strength and fatigue test device of large high pressure spring |
| KR101527315B1 (en) * | 2014-01-22 | 2015-06-09 | 한국수력원자력 주식회사 | Device for testing efficiency of spring equipped in air actuator |
| CN104266675A (en) * | 2014-10-25 | 2015-01-07 | 马钢(集团)控股有限公司 | Detection device for wheel |
| CN205352719U (en) * | 2015-12-11 | 2016-06-29 | 苏州市凯惠铁路机电有限公司 | Wheel pair running -in test machine |
| CN105628365A (en) * | 2016-04-14 | 2016-06-01 | 南京航空航天大学 | Spring tension-compression fatigue testing device |
| CN106855455A (en) * | 2017-01-20 | 2017-06-16 | 彭州市长庆全成技术开发有限公司 | Multi-function spring testing machine |
| CN107036805A (en) * | 2017-06-14 | 2017-08-11 | 苏州科技大学 | Spring anti-fatigue test equipment |
| CN207816572U (en) * | 2017-12-01 | 2018-09-04 | 佛山市子活力弹簧有限公司 | A kind of spring experimental rig |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108398253A (en) * | 2018-03-15 | 2018-08-14 | 朱柏艳 | A kind of spring fatigue life test bench installation |
| CN108398253B (en) * | 2018-03-15 | 2020-06-12 | 深圳市千业精密金属有限公司 | Spring fatigue life test bed equipment |
| CN109238668A (en) * | 2018-08-23 | 2019-01-18 | 倪晋挺 | A kind of motor spring detection device |
| CN109238668B (en) * | 2018-08-23 | 2020-04-28 | 戴金燕 | Automobile spring detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201993280U (en) | Integral furniture testing equipment | |
| CN205333280U (en) | Automobile seat bumping and creeping test stand | |
| CN202158968U (en) | Multi-station linear reciprocation simulation and fatigue service life test bench | |
| CN107727389A (en) | A kind of spring experimental rig | |
| CN104992832B (en) | A kind of transformer assembling table | |
| CN202793805U (en) | Durability testing device for passenger car seat | |
| CN106197988A (en) | A kind of air spring tensile test device | |
| CN207816572U (en) | A kind of spring experimental rig | |
| CN202693276U (en) | Fatigue test table of engine connecting rod | |
| CN116593147A (en) | Fatigue test equipment and method using bag type air spring | |
| CN106112515B (en) | One kind suspension spring block selects pad machine | |
| CN206417842U (en) | Integrated liquid automatic loading equipment | |
| CN207730427U (en) | A kind of control system of spring experimental rig | |
| CN209653989U (en) | A kind of drill steel support device and horizontal directional drilling machine | |
| CN1212510C (en) | Triaxial testing machine vertical direction load force frame floating device and method | |
| CN107257187A (en) | Electric machine rotor suit stator centering positioner | |
| CN105510060B (en) | A kind of motorcycle vibration absorber mechanism for testing | |
| CN105090062B (en) | Semi-automatic water pump performance test platform | |
| CN204514728U (en) | A kind of liner testing machine | |
| CN207788803U (en) | Shaft element handler | |
| CN101532605A (en) | A large-scale gas cabinet piston adjusting apparatus used in metallurgical and other industries and its construction method | |
| CN209294171U (en) | A kind of a quarter Vehicle Active Suspension System hydraulic test bench | |
| CN204964219U (en) | Experimental suspension point load analogue means of beam -pumping unit | |
| CN105018691B (en) | A kind of high strength petroleum sucker rod fast quenching apptss | |
| CN207081554U (en) | A kind of simple stand of automotive engine test |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |