CN208026463U - A kind of fatigue tester of nitrogen gas spring - Google Patents
A kind of fatigue tester of nitrogen gas spring Download PDFInfo
- Publication number
- CN208026463U CN208026463U CN201820437893.XU CN201820437893U CN208026463U CN 208026463 U CN208026463 U CN 208026463U CN 201820437893 U CN201820437893 U CN 201820437893U CN 208026463 U CN208026463 U CN 208026463U
- Authority
- CN
- China
- Prior art keywords
- pressure
- switch
- nitrogen gas
- support column
- gas spring
- 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.)
- Expired - Fee Related
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model belongs to test equipment technical field, and in particular to a kind of fatigue tester of nitrogen gas spring.Including workbench (1), pressure system (2) and control system (3), the control system (3) is electrically connected with the pressure system (2), the pressure test contact device (23) that the pressure system (2) includes rack (21), is set to the pressure apparatus (22) of the rack (21), is connected to the pressure apparatus (22) output end, the pressure test contact device (23) pass through the rack (21) and correspond to the workbench (1).The fatigue tester the operation is stable, reliability is high, and service life is long, vdiverse in function, and visible working state degree is high, can carry out reliable testing fatigue to nitrogen gas spring, can accurately acquire a variety of data.
Description
Technical field
The utility model belongs to test equipment technical field, and in particular to a kind of fatigue tester of nitrogen gas spring.
Background technology
Mold special nitrogen spring（Abbreviation punch die nitrogen gas spring or nitrogen gas spring or nitrogen cylinder or nitrogen cylinder）Be one kind with height
It is the novel elastic component of working media to press nitrogen, it is small, elastic force is big, stroke is long, stable working, and manufacture is accurate, is used
Long lifespan（1000000 times）, spring curve is gentle, and need not pre-tighten etc., it has metal spring, rubber and air cushion etc.
Common elastic component is difficult to the work completed, and simplifies mold design and manufacture, facilitates mold to install and adjust, extends making for mold
With the service life, it is ensured that the stabilization of product quality can also be designed to a kind of nitrogen gas spring system, and the part as mold participates in work
Make, can easily realize that pressure is constant and deferred action in systems, is a kind of most reason of a new generation with flex capability
The elastomeric element thought.
In practical applications, testing fatigue is carried out to the nitrogen gas spring of different model, it is right to distinguish the performance of nitrogen gas spring
It is extremely important in a mold in the suitable nitrogen gas spring application of selection.
However, spring fatigue tester in the market is moved reciprocatingly by motor, speed reducer connection cam driven connecting rod,
It realizes the compression movement to spring, is mainly applied to the low-frequency experiment on fatigue properties of various helical springs.Due to nitrogen bullet
Spring is to be worked by nitrogen pressure, and common spring is worked by elastic properties of materials, the operation principle between them
There are prodigious differences, therefore spring fatigue tester in the market can not carry out testing fatigue, technological gap to nitrogen gas spring
Urgent need is filled up.
Utility model content
The purpose of this utility model is that：In view of the deficiencies of the prior art, a kind of nitrogen gas spring fatigue tester is provided,
For the testing fatigue of nitrogen gas spring, in order to the selection to nitrogen gas spring model in die design process.
To achieve the above object, the utility model adopts the following technical solution：
A kind of fatigue tester of nitrogen gas spring, including workbench, pressure system and control system, the control system with
The pressure system connection, the pressure system include rack, are set to the pressure apparatus of the rack, are connected to the pressure
The pressure test of device output end contacts device, and the pressure test contact device passes through the rack and corresponds to the work
Platform.The test of the nitrogen gas spring of various models can be met in workbench, pressure system can be to nitrogen under control of the control system
Spring carries out the testing fatigue of various modes, obtains the relevant parameter under different working modes.
Further include height tunable arrangement as a kind of improvement of nitrogen gas spring fatigue tester described in the utility model,
The height tunable arrangement is set on the workbench.Height tune can be carried out according to the size of the nitrogen gas spring of different model
Section makes testing fatigue obtain most true data.
As a kind of improvement of nitrogen gas spring fatigue tester described in the utility model, the rack include support column,
Fixed plate, the first inductor and the second inductor, the fixed plate are vertically installed in the support column, first inductor and
Second inductor may be contained within the support column, and first inductor is set to above second inductor.It is collectively formed
Three-dimensional firm frame mechanism, for the testing fatigue of nitrogen gas spring provides reliable guarantee.
As a kind of improvement of nitrogen gas spring fatigue tester described in the utility model, the support column includes first
Dagger and second support column parallel with first support column, first inductor and second inductor may be contained within
First support column or the second support column；Or first inductor is set to first support column, second sense
Device is answered to be set to second support column；Or first inductor is set to second support column, second induction
Device is set to first support column.The installation site of first inductor and the second inductor can be done according to specific working environment
Go out flexible and changeable adjustment, and can be according to the model of surveyed nitrogen gas spring to being highly adjusted, great hommization, described first
The setting of inductor and second inductor can be such that pressure plare is moved back and forth in certain stroke, can meet different model
Nitrogen gas spring testing fatigue.
As a kind of improvement of nitrogen gas spring fatigue tester described in the utility model, the pressure apparatus includes pressure
Cylinder and pressure gauge, the pressure cylinder are set to the fixed plate, and the pressure gauge is set to the pressure cylinder, the pressure gauge with
The control system electrical connection, the pressure cylinder is hydraulic cylinder.Pressure gauge can acquire pressure data when pressure cylinder working, and will
To control system, control system can carry out feedback regulation according to pressure data to the working condition of pressure cylinder, real for data electrical transmission
When monitoring can ensure that test machine work stability, there are many kinds of the equipment that can be used for pressure cylinder, selects liquid in this application
Cylinder pressure, because hydraulic cylinder works stability is high, the pressure provided is big, can meet the testing fatigue of the nitrogen gas spring of different model.
As a kind of improvement of nitrogen gas spring fatigue tester described in the utility model, the pressure test contacts device
Including slide post and pressure plare, described slide post one end connects the pressure plare, and the other end connects the pressure apparatus.Pressure plare
It is connect between slide post by being mechanically fixed, pressure apparatus can be effectively by pressure transmission to pressure plare by slide post.
As a kind of improvement of nitrogen gas spring fatigue tester described in the utility model, the control system includes control
Panel, hydraulic pump, oil pipe, counter, key switch and indicator light, the hydraulic pump, the counter, the key switch and
The indicator light is electrically connected with the control panel, is connected by oil pipe between the hydraulic pump and the pressure cylinder.Pass through
Press of key switch can give instruction fax to control panel, and control panel can transport hydraulic pump according to the instruction of receiving
The oil pressure of dynamic control, hydraulic pump output is transported to compression pump by oil pipe, then can carry out back and forth tired to nitrogen gas spring
Labor is tested, and counter can record reciprocal number, data foundation is provided for the fatigue strength of nitrogen gas spring.
As a kind of improvement of nitrogen gas spring fatigue tester described in the utility model, the key switch includes power supply
Switch, switching switch, oil pressure starting switch, emergency stop switch, crawl upstream switch, crawl downing switch, double startup switch and stop
It only switchs, the power switch, switching switch, the oil pressure starting switch, the emergency stop switch, the crawl uplink are opened
Pass, the crawl downing switch, the double startup switch and the shutdown switch are set to control panel in array.It is a variety of to open
Convenient for the control refined to test machine, switching switch can be with test machine realization manual work pattern and automatic work for the setting of pass
Switching between pattern is operating mode diversification.
As a kind of improvement of nitrogen gas spring fatigue tester described in the utility model, the indicator light includes that oil pressure stops
Only indicator light, malfunction indicator lamp, uplink indicator light and downlink indicator light, the oil pressure stop indicator light, the malfunction indicator lamp,
The uplink indicator light and the downlink indicator light are set to control panel in array.The setting of a variety of indicator lights can react
Go out different working conditions, is monitored in real time convenient for the state to test machine.
As a kind of improvement of nitrogen gas spring fatigue tester described in the utility model, by the key switch into
Row pressing operation, the control panel receive corresponding electric signal, and the hydraulic pump carries out under the control of the control panel
The oil pressure of work, the hydraulic pump output is transported to by the oil pipe in the pressure cylinder.This control flow can ensure
It is test machine the operation is stable, reliable.
Compared with prior art, the utility model can carry out testing fatigue to nitrogen gas spring, meet industrial requirement.
Description of the drawings
Attached drawing described herein is used to provide a further understanding of the present invention, and constitutes one of the utility model
Point, the exemplary embodiment and its explanation of the utility model are not constituted for explaining the utility model to the utility model
Improper restriction.In the accompanying drawings：
Fig. 1 is the structural schematic diagram of embodiment 1 in the utility model；
Fig. 2 is the structural schematic diagram of embodiment 2 in the utility model；
Fig. 3 is the structural schematic diagram of embodiment 3 in the utility model；
Wherein：1- workbench；2- pressure systems；21- racks；211- support columns；The first support columns of 2111-；2112- second
Support column；212- fixed plates；The first inductors of 213-；The second inductors of 214-；215- pedestals；22- pressure apparatus；221- pressure
Cylinder；222- pressure gauges；23- pressure tests contact device；231- slide posts；232- pressure plares；3- control systems；31- control planes
Plate；32- hydraulic pumps；33- oil pipes；34- counters；35- key switches；351- power switches；352- switching switches；353- oil pressure
Starting switch；354- emergency stop switch；355- crawl upstream switch；356- crawl downing switch；357- double startups switch；358- stops
Only switch；36- indicator lights；361- oil pressure stops indicator light；362- malfunction indicator lamp；363- uplink indicator lights；364- downlinks refer to
Show lamp；4- height tunable arrangements.
Specific implementation mode
Some vocabulary has such as been used to censure specific components in specification and claim.Those skilled in the art answer
It is understood that hardware manufacturer may call the same component with different nouns.This specification and claims are not with name
The difference of title is used as the mode for distinguishing component, but is used as the criterion of differentiation with the difference of component functionally.Such as logical
The "comprising" of piece specification and claim mentioned in is an open language, therefore should be construed to " include but do not limit
In "." substantially " refer in acceptable error range, those skilled in the art can be described within a certain error range solution
Technical problem basically reaches the technique effect.
In the description of the present invention, it should be understood that term "upper", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as level " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description originally
Utility model and simplified description, do not indicate or imply the indicated device or element must have a particular orientation, with specific
Azimuth configuration and operation, therefore should not be understood as limiting the present invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the present invention.
The utility model is described in further detail below in conjunction with attached drawing, but not as the restriction to the utility model.
Embodiment 1
As shown in Figure 1, a kind of fatigue tester of nitrogen gas spring, including workbench 1, pressure system 2 and control system 3,
Control system 3 is connect with pressure system 2, pressure system 2 include rack 21, be set to rack 21 pressure apparatus 22, be connected to
The pressure test of 22 output end of pressure apparatus contacts device 23, and pressure test contacts device 23 and passes through rack 21 and correspond to work
Platform 1.The test that the nitrogen gas spring of various models can be met in workbench 1, pressure system 2 can be right under the control of control system 3
Nitrogen gas spring carries out the testing fatigue of various modes, obtains the relevant parameter under different working modes.
The utility model further includes height tunable arrangement 4, and height tunable arrangement 4 is set to 1 top of workbench.It can be according to not
Size with the nitrogen gas spring of model carries out height adjusting, and testing fatigue is made to obtain most true data.
Preferably, rack 21 includes support column 211, fixed plate 212, the first inductor 213, the second inductor 214 and bottom
Seat 215, workbench 1 and support column 211 may be contained within pedestal 215, and fixed plate 212 is vertically installed in above support column 211, and first
Inductor 213 and the second inductor 214 may be contained on support column 211, and the first inductor 213 is set to the second inductor 214
Top.Three-dimensional firm frame mechanism is together formed, reliable guarantee is provided for the testing fatigue of nitrogen gas spring.
Preferably, support column 211 includes the first support column 2111 and second support column parallel with the first support column 2111
2112, the first inductor 213 and the second inductor 214 may be contained within the first support column 2111 or the second support column 2112；First
The installation site of inductor 213 and the second inductor 214 can make flexible and changeable adjustment according to specific working environment, and can
According to the model of surveyed nitrogen gas spring to being highly adjusted, the setting of great hommization, inductor can make pressure plare 232 one
Determine to move back and forth in stroke, the testing fatigue of the nitrogen gas spring of different model can be met.
Preferably, pressure apparatus 22 includes pressure cylinder 221 and pressure gauge 222, and pressure cylinder 221 is set to fixed plate 212, is pressed
Power table 222 is set to pressure cylinder 221, and pressure gauge 222 is electrically connected with control system 3, and pressure cylinder 221 is hydraulic cylinder.Pressure gauge 222
Pressure data when pressure cylinder 221 works can be acquired, and by data electrical transmission to control system 3, control system 3 can be according to pressure
Data carry out feedback regulation to the working condition of pressure cylinder 221, and real time monitoring can ensure that the stability of the work of test machine, can use
In pressure cylinder equipment there are many kinds of, select hydraulic cylinder in this application because hydraulic cylinder works stability is high, the pressure that can be provided
Power is big, can meet the testing fatigue of the nitrogen gas spring of different model.
Preferably, pressure test contact device 23 includes slide post 231 and pressure plare 232,231 one end of slide post connection pressure
Power plate 232, the other end connect pressure apparatus 22.By being mechanically fixed connection, pressure dress between pressure plare 232 and slide post 231
Setting 22 can be effectively by pressure transmission to pressure plare 232 by slide post 231.
Preferably, control system 3 includes control panel 31, hydraulic pump 32, oil pipe 33, counter 34,35 and of key switch
Indicator light 36, hydraulic pump 32, counter 34, key switch 35 and indicator light 36 are electrically connected with control panel 31, hydraulic pump 32
It is connect by oil pipe 33 between pressure cylinder 221.By press of key switch 35, instruction fax can be given to control panel 31,
Control panel 31 can carry out motion control according to the instruction of receiving to hydraulic pump 32, and the oil pressure that hydraulic pump 32 exports passes through oil pipe 33
It is transported to compression pump, reciprocal testing fatigue can be then carried out to nitrogen gas spring, counter 34 can record reciprocal time
Number, data foundation is provided for the fatigue strength of nitrogen gas spring.
Preferably, key switch 35 includes power switch 351, switching switch 352, oil pressure starting switch 353, emergency stop switch
354, crawl upstream switch 355, crawl downing switch 356, double startup switch 357 and shutdown switch 358, power switch 351 are cut
Change switch 352, oil pressure starting switch 353, emergency stop switch 354, crawl upstream switch 355, crawl downing switch 356, double startup
Switch 357 and shutdown switch 358 are set to control panel 31 in array.The setting of a variety of switches is convenient for refining test machine
Control, switching switch 352 can with test machine realization manual work pattern and automatic operation mode between switching, be Working mould
Formula diversification.
Preferably, indicator light 36 include oil pressure stop indicator light 361, malfunction indicator lamp 362, uplink indicator light 363 and under
Row indicator light 364, oil pressure stop indicator light 361,364 equal battle array of malfunction indicator lamp 362, uplink indicator light 363 and downlink indicator light
It is set to control panel 31 to row.The setting of a variety of indicator lights 36 can reflect different working conditions, convenient for test machine
State monitored in real time.
For the utility model by carrying out pressing operation to key switch 35, control panel 31 receives corresponding electric signal,
Hydraulic pump 32 works under the control of control panel 31, and the oil pressure that hydraulic pump 32 exports is transported to pressure cylinder by oil pipe 33
In 221.This control flow can ensure test machine the operation is stable, reliable.
The operation principle of the utility model is：Instruction is transmitted electrically into input control panel 31 by press of key switch 35,
Control panel 31 is made calculation process according to the electric signal received and is transmitted the electrical signal in hydraulic pump 32, the electricity in hydraulic pump 32
Machine carries out operating according to electric signal and generates oil pressure, and oil pressure is transported to by oil pipe 33 in compression pump, and compression pump passes through slide post 231
Pressure plare 232 is driven to move reciprocatingly, the nitrogen gas spring on tunable arrangement moves under the pressure of pressure plare 232, and first
Collected signal can be passed to control panel 31 by inductor 213 and the second inductor 214, controllable by control panel 31
The stroke of pressure plare 232, and reciprocal time is recorded by counter 34, operating pressure can be observed by pressure gauge 222 in real time, led to
Signal can be passed to control panel 31 by crossing electrical transmission, and control panel 31, which carries out judgement, to carry out feedback regulation to pressure cylinder 221, really
Protect the stability and reliability of work.When work, 351 and oil pressure starting switch 353 are turned on the power switch, by toggle switch
352 are adjusted to manual mode, and workpiece is positioned on height tunable arrangement 4, by crawl downing switch 356 by 232 downlink of pressure plare
To workpiece, it is necessary to which workpiece remains stationary as, and the first inductor 213 and the second inductor 214 is modulated to suitable position, by crush-cutting
It changes switch 352 and is adjusted to automatic mode, while starting test by double startup switch 357, after being successfully tested, by shutdown switch 358, press
Toggle switch 352 is adjusted to manual mode, and the first inductor 213 is turned up in workpiece, and pressure plare is allowed by crawl upstream switch 355
232, far from workpiece, then take out workpiece, complete test.
Embodiment 2
As shown in Fig. 2, as different from Example 1：The first inductor of the present embodiment 213 is set to the first support column
2111, the second inductor 214 is set to the second support column 2112.It is identical in implementation result and embodiment 1, pressure plare 232 can be made
It moves back and forth in certain stroke, does not repeat here.
Other structures are same as Example 1, and which is not described herein again.
Embodiment 3
As shown in figure 3, as different from Example 1：The first inductor of the present embodiment 213 is set to the second support column
2112, the second inductor 214 is set to the first support column 2111.It is identical in implementation result and embodiment 1, pressure plare 232 can be made
It moves back and forth in certain stroke, does not repeat one by one here.
Other structures are same as Example 1, and which is not described herein again.
Several preferred embodiments of the utility model, but as before, it should be understood that this reality has shown and described in above description
It is not limited to form disclosed herein with novel, is not to be taken as the exclusion to other embodiment, and can be used for various
Other combinations, modification and environment, and above-mentioned introduction or the skill of related field can be passed through in this paper utility model contemplated scopes
Art or knowledge are modified.And changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model,
It then all should be in the protection domain of the appended claims for the utility model.
Claims (10)
1. a kind of fatigue tester of nitrogen gas spring, it is characterised in that：Including workbench (1), pressure system (2) and control system
(3), the control system (3) connect with the pressure system (2), and the pressure system (2) includes rack (21), is set to institute
The pressure test contact device (23) stated the pressure apparatus (22) of rack (21), be connected to the pressure apparatus (22) output end,
The pressure test contact device (23) passes through the rack (21) and corresponds to the workbench (1).
2. a kind of fatigue tester of nitrogen gas spring according to claim 1, it is characterised in that：It further include the adjustable dress of height
It sets (4), the height tunable arrangement (4) is set on the workbench (1).
3. a kind of fatigue tester of nitrogen gas spring according to claim 1, it is characterised in that：The rack (21) includes
Support column (211), fixed plate (212), the first inductor (213), the second inductor (214) and pedestal (215), the workbench
(1) and the support column (211) may be contained within the pedestal (215), and the fixed plate (212) is vertically installed in the support column
(211), first inductor (213) and the second inductor (214) may be contained within the support column (211), first sense
Device (213) is answered to be set to above second inductor (214).
4. a kind of fatigue tester of nitrogen gas spring according to claim 3, it is characterised in that：The support column (211)
Including the first support column (2111) and second support column (2112) parallel with the first support column (2111), first sense
Device (213) and second inductor (214) is answered to may be contained within first support column (2111) or the second support column (2112)；
Or first inductor (213) is set to first support column (2111), second inductor (214) is set to institute
State the second support column (2112)；Or first inductor (213) is set to second support column (211), described second
Inductor (214) is set to first support column (211).
5. a kind of fatigue tester of nitrogen gas spring according to claim 3, it is characterised in that：The pressure apparatus (22)
Including pressure cylinder (221) and pressure gauge (222), the pressure cylinder (221) is set to the fixed plate (212), the pressure gauge
(222) it is set to the pressure cylinder (221), the pressure gauge (222) is electrically connected with the control system (3)；The pressure cylinder
(221) it is hydraulic cylinder.
6. a kind of fatigue tester of nitrogen gas spring according to claim 1, it is characterised in that：The pressure test contact
Device (23) includes slide post (231) and pressure plare (232), and described slide post (231) one end connects the pressure plare (232),
The other end connects the pressure apparatus (22).
7. a kind of fatigue tester of nitrogen gas spring according to claim 5, it is characterised in that：The control system (3)
It is described including control panel (31), hydraulic pump (32), oil pipe (33), counter (34), key switch (35) and indicator light (36)
Hydraulic pump (32), the counter (34), the key switch (35) and the indicator light (36) with the control panel
(31) it is electrically connected, is connect by oil pipe (33) between the hydraulic pump (32) and the pressure cylinder (221).
8. a kind of fatigue tester of nitrogen gas spring according to claim 7, it is characterised in that：The key switch (35)
Including power switch (351), switching switch (352), oil pressure starting switch (353), emergency stop switch (354), crawl upstream switch
(355), crawl downing switch (356), double startup switch (357) and shutdown switch (358), it is the power switch (351), described
Switching switch (352), the oil pressure starting switch (353), the emergency stop switch (354), the crawl upstream switch (355),
The crawl downing switch (356), double startup switch (357) and the shutdown switch (358) are set to control in array
Panel (31) processed.
9. a kind of fatigue tester of nitrogen gas spring according to claim 7, it is characterised in that：Indicator light (36) packet
It includes oil pressure and stops indicator light (361), malfunction indicator lamp (362), uplink indicator light (363) and downlink indicator light (364), the oil
Pressure stops indicator light (361), the malfunction indicator lamp (362), the uplink indicator light (363) and the downlink indicator light
(364) it is set to control panel (31) in array.
10. a kind of fatigue tester of nitrogen gas spring according to claim 8, it is characterised in that：By to the button
It switchs (35) and carries out pressing operation, the control panel (31) receives corresponding electric signal, the control in the control panel (31)
The hydraulic pump (32) works under system, and the oil pressure that the hydraulic pump (32) exports is transported to described by the oil pipe (33)
In pressure cylinder (221).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820437893.XU CN208026463U (en) | 2018-03-29 | 2018-03-29 | A kind of fatigue tester of nitrogen gas spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820437893.XU CN208026463U (en) | 2018-03-29 | 2018-03-29 | A kind of fatigue tester of nitrogen gas spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208026463U true CN208026463U (en) | 2018-10-30 |
Family
ID=63909735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820437893.XU Expired - Fee Related CN208026463U (en) | 2018-03-29 | 2018-03-29 | A kind of fatigue tester of nitrogen gas spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208026463U (en) |
-
2018
- 2018-03-29 CN CN201820437893.XU patent/CN208026463U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101660977B (en) | Ship-shaped switch fatigue test device | |
| CN106646211B (en) | Automatic testing device for stroke pressure of microswitch with higher efficiency | |
| CN101900656A (en) | Abrasion resistance testing device | |
| CN101979992A (en) | Spring fatigue test device | |
| CN103802065B (en) | Air-spring piston press-loading apparatus and pressing method | |
| CN101865180B (en) | Static pressure and vibration composite test device for hydraulic tube and connecting joint thereof | |
| CN202939018U (en) | Spring life test fixture and spring life test device | |
| CN202158968U (en) | Multi-station linear reciprocation simulation and fatigue service life test bench | |
| CN103822778A (en) | Corrugated pipe service life tester | |
| CN202748228U (en) | Device for testing durability of automobile vibration damper | |
| CN201464209U (en) | Testing apparatus for testing service durability of keyswitch | |
| CN108226686A (en) | Mobile phone charger test equipment | |
| CN208026463U (en) | A kind of fatigue tester of nitrogen gas spring | |
| CN105933554B (en) | Computerized Branch Exchange assembly line and assemble method | |
| CN108132446A (en) | Mobile phone charger test system | |
| CN207992345U (en) | Mobile phone charger test equipment | |
| CN204694455U (en) | Based on the inflatable corrugated tube fatigue tester automaton of PLC | |
| CN202735081U (en) | Auxiliary switch combined test device for mechanism | |
| CN204008102U (en) | Reciprocating liquid spring unit simulation test device | |
| CN203414350U (en) | Fatigue compressive deformation performance tester for shoe sole | |
| CN208588807U (en) | A kind of travel switch experimental provision | |
| CN203027328U (en) | Mobile phone radio frequency test device | |
| CN203643140U (en) | Strength and fatigue test apparatus of large-scale high-pressure spring | |
| CN201811885U (en) | Double-station nitrogen spring life tester | |
| CN203705162U (en) | Bellows life testing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181030 |