CN207717343U - A kind of claw fatigue test device - Google Patents
A kind of claw fatigue test device Download PDFInfo
- Publication number
- CN207717343U CN207717343U CN201721870470.9U CN201721870470U CN207717343U CN 207717343 U CN207717343 U CN 207717343U CN 201721870470 U CN201721870470 U CN 201721870470U CN 207717343 U CN207717343 U CN 207717343U
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- Prior art keywords
- claw
- supporting rod
- fixed plate
- transfer pipe
- hole
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- Withdrawn - After Issue
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- 210000000078 claw Anatomy 0.000 title claims abstract description 184
- 238000009661 fatigue test Methods 0.000 title claims abstract description 23
- 238000012546 transfer Methods 0.000 claims abstract description 54
- 241000276425 Xiphophorus maculatus Species 0.000 claims abstract description 13
- 230000008961 swelling Effects 0.000 claims description 31
- 238000006073 displacement reaction Methods 0.000 claims description 15
- 238000003825 pressing Methods 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000009659 non-destructive testing Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Manipulator (AREA)
Abstract
The utility model belongs to steam generator heat-transfer pipe non-destructive testing and maintenance technique field, and in particular to a kind of claw fatigue test device；The device includes heat transfer pipe fixation structure, claw fixing structure, claw movement structure, lifting cylinder, lifting guiding axis and bottom plate；The bottom plate is platy structure, and lifting cylinder, bottom plate both sides setting lifting guiding axis are arranged among bottom plate；The claw fixing structure is used for stationary jaw, the claw movement structure for realizing claw opening and closing action, claw fixing structure is arranged in claw movement structure top, claw movement structure lower end exports axis connection with lifting cylinder, lifting cylinder pushes claw movement structure 3 and claw fixing structure whole along lifting guiding axis up and down motion, the heat transfer pipe fixation structure setting is at the top of lifting guiding axis, and the heat transfer pipe fixation structure is for fixing heat-transfer pipe.The utility model adapts to the detection of all nuclear reaction heap-type heat-transfer pipe positioning robot's claws at present by simple module replacing.
Description
Technical field
The invention belongs to the non-destructive testings of steam generator heat-transfer pipe and similar devices and maintenance technique field, and in particular to
A kind of claw fatigue test device.
Background technology
Steam generator is one of critical component in one loop of nuclear power station system, it is ensured that the safety fortune of steam generator
Row, it is ensured that the integrality of primary Ioops system, it is necessary to periodically using creeping-type positioning robot to the heat-transfer pipe of steam generator into
The non-destructive testing of the modes such as row vortex.Creeping-type positioning robot is alternately clamped to realize by claw on the tube sheet of heat-transfer pipe
To the positioning function of heat-transfer pipe.
The reliability of claw directly decides the stability of positioning robot and the efficiency of non-destructive testing.The technique of claw and
Processing and manufacturing requires all relatively strictly, but due to the material heat treatment of every batch of, machining, and the links such as surface treatment are likely to
There are fine error, this inevitable error that can influence this batch of claw performance.Therefore the claw of every batch of is required for
Sampling observation carries out testing fatigue.
Existing mode is that claw is mounted on creeping-type positioning robot to carry out testing fatigue, and this mode first has to
Disassembly and assembly is carried out to creeping-type positioning robot, a claw is often changed and is required for repeating disassembly process, process is complicated,
Heavy workload and it is necessary to testing fatigue could be carried out by connecting the whole system of creeping-type positioning robot, serious waste of resources,
Being dismounted for multiple times can also influence the overall performance of creeping-type positioning robot.
Invention content
The purpose of the present invention is to provide a kind of claw fatigue test device, simulation creeping-type positioning robot was creeping
The action of claw and state carry out testing fatigue to claw in journey.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of claw fatigue test device, the device include heat transfer pipe fixation structure, claw fixing structure, claw action knot
Structure, lifting cylinder lift guiding axis and bottom plate；
The bottom plate is platy structure, and lifting cylinder, bottom plate both sides setting lifting guiding axis are arranged among bottom plate；The card
Pawl fixed structure is used for stationary jaw, and the claw movement structure is for realizing the opening and closing action of claw, the claw
Claw fixing structure is arranged in movement structure top, and claw movement structure lower end exports axis connection, lifting air with lifting cylinder
Cylinder pushes claw movement structure and claw fixing structure whole along lifting guiding axis up and down motion, and claw is made to pass in and out heat-transfer pipe, institute
The setting of heat transfer pipe fixation structure is stated at the top of lifting guiding axis, the heat transfer pipe fixation structure is for fixing heat-transfer pipe.
The heat transfer pipe fixation structure includes linear displacement transducer, movable block cover board, union (screwed)bonnet (UB, movable block and activity
Block fixed plate；
The movable block fixed plate is platy structure, and movable block fixed plate center is machined with through-hole, in movable block fixed plate
Portion is provided with annular convex platform around through-hole, movable block is arranged in annular convex platform, heat-transfer pipe is fixed in movable block, union (screwed)bonnet (UB
Movable block cover board is pressed on movable block top, linear displacement transducer is arranged on movable block cover board top；
The movable block cover plate central is machined with through-hole, and the frizzen of linear displacement transducer passes through movable block cover plate through hole
It stretches into heat-transfer pipe.
The claw fixing structure includes supporting rod, positioning pin, thread bush, spacing ring and claw fixed plate；
The claw fixed plate is platy structure, and claw fixed plate is located at below movable block fixed plate, in claw fixed plate
The heart is machined with through-hole, and spacing ring is arranged in through-hole, through-hole is machined in spacing ring, and set is threaded in through-hole, is added in thread bush
It is cylindrical tube structure that work, which has threaded hole, claw hypomere, and hypomere outer wall is machined with external screw thread, claw hypomere external screw thread and thread bush
Threaded hole cooperation fix, claw epimere be valvular structure, include the pawl valve of multiple separation；The supporting rod epimere is bored for cylinder
Shape structure, supporting rod penetrate in claw from bottom to top, positioning pin are arranged in the middle part of claw, it is radial with supporting rod that positioning pin limits claw
Displacement, supporting rod axially move up and down relative to claw.
The claw movement structure includes pressing plate, and supporting rod gripping block, connecting plate, connector, swelling cylinder and cylinder are solid
Fixed board；
The air cylinder fixed plate is platy structure, and swelling cylinder is arranged in air cylinder fixed plate, on swelling cylinder output shaft
End is connect by connector with connecting plate, and supporting rod gripping block is arranged in connecting plate top, and supporting rod gripping block center is machined with peace
Tankage, supporting rod lower end are pressed on by pressing plate in the mounting groove of supporting rod gripping block center fixed；
The swelling cylinder pushes up supporting rod gripping block and supporting rod integrally moves upwards, and supporting rod moves upwards support
The valvular structure opening for opening claw epimere firmly grasps heat-transfer pipe, and swelling cylinder moves downward, and drives supporting rod gripping block and supporting rod
Entirety moves downward, and the valvular structure of claw epimere closes up release heat-transfer pipe, realizes the opening and closing action of claw.
The claw movement structure further includes swelling guiding axis, linear bearing pressing plate and linear bearing；
The supporting rod gripping block is machined with through-hole, and linear bearing is arranged in supporting rod gripping block through-hole, and supporting rod clamps
Block bottom is arranged linear bearing pressing plate and fixes linear bearing, and swelling guiding axis passes through linear bearing, swelling guiding axis upper end and card
Pawl fixed plate connects, and swelling guiding axis lower end is connect with connecting plate.
The claw movement structure further includes supporting sleeve；The supporting sleeve be round tube shape structure, the claw fixed plate and
Air cylinder fixed plate both sides corresponding position is machined with through-hole, the supporting sleeve connection claw fixed plate and the processing of air cylinder fixed plate both sides
Through-hole, the lifting guiding axis sequentially passes through two side through hole of two side through hole of air cylinder fixed plate, supporting sleeve and claw fixed plate.
The present invention's has the technical effect that：
(1) a kind of claw fatigue test device of the present invention, using being assembled in movable block fixed plate in heat-transfer pipe fixed module
There are movable block and movable block cover board, movable block to be used for that heat-transfer pipe is installed, different model can be installed by changing the internal diameter of movable block
Heat-transfer pipe adapts to all nuclear reactions at present to adapt to the claw detection of different outer diameter sizes by simple module replacing
The detection of heap-type heat-transfer pipe positioning robot's claw.
(2) a kind of claw fatigue test device of the present invention assembles straight line on heat-transfer pipe stent movable block cover board in the block
The detection of small sliding may be implemented in displacement sensor, to judge whether detected claw fails, and records number, assessment
Claw service life.
(3) a kind of claw fatigue test device of the present invention increases one in claw fixed module in claw fixed plate
Thread bush, for being directly connected to claw；Thread bush is connected by screw in claw fixed plate, easy for installation, is carried out to claw
Testing fatigue need not be coordinated with positioning robot's whole system.
(4) a kind of claw fatigue test device of the present invention, claw action module are divided into two parts, the responsible claw of a part
It rises overally and lowering action, another part drives supporting rod to move up and down, complete opening, the closing action of claw, two parts
Driving power is provided by cylinder, independent control is independent of each other.
Description of the drawings
Fig. 1 is a kind of claw fatigue test device schematic diagram of the present invention；
Fig. 2 is a kind of claw fatigue test device heat transfer pipe fixation structure schematic diagram of the present invention；
Fig. 3 is a kind of claw fatigue test device claw fixing structure schematic diagram of the present invention；
Fig. 4 is a kind of claw fatigue test device claw movement structure schematic diagram of the present invention；
Fig. 5 is a kind of claw fatigue test device straight-line guidance structural schematic diagram of the present invention；
In figure：1- heat transfer pipe fixation structures, 2- claw fixing structures, 3- claw movement structures, 4- lifting cylinders, 5- liftings
Guiding axis, 6- bottom plates, 7- heat-transfer pipes, 101- linear displacement transducers, 102- movable block cover boards, 103- union (screwed)bonnet (UBs, 104- live
Motion block 105- movable block fixed plates, 201- supporting rods, 202- claws, 203- positioning pins, 204- thread bush, 205- spacing rings,
206- claw fixed plates, 301- swelling guiding axis, 302- pressing plates, 303- supporting rod gripping blocks, 304- linear bearing pressing plates, 305-
Connecting plate, 306- supporting sleeves, 307- connectors, 308- swelling cylinders, 309- air cylinder fixed plates, 310- linear bearings.
Specific implementation mode
A kind of claw fatigue test device of the present invention is described in detail with attached drawing With reference to embodiment.
As shown in Figure 1, a kind of claw fatigue test device of the present invention, including heat transfer pipe fixation structure 1, claw fixing structure
2, claw movement structure 3, lifting cylinder 4 lifts guiding axis 5 and bottom plate 6；
The bottom plate 6 is platy structure, and lifting cylinder 4,6 both sides of bottom plate setting lifting guiding axis 5 are arranged among bottom plate 6；
Claw fixing structure 2,3 lower end of claw movement structure and 4 output shaft of lifting cylinder is arranged in 3 top of claw movement structure
Connection, lifting cylinder 4 pushes claw movement structure 3 and the whole edge lifting guiding axis 5 of claw fixing structure 2 to move up and down, described
The setting of pipe fixation structure 1 conduct heat at 5 top of lifting guiding axis, the heat transfer pipe fixation structure 1 is described for fixing heat-transfer pipe 7
Claw fixing structure 2 be used for stationary jaw 202, the claw movement structure 3, for realizing claw 202 opening and close up dynamic
Make；
As shown in Fig. 2, the heat transfer pipe fixation structure 1 is for fixing heat-transfer pipe 7, the heat transfer pipe fixation structure 1 includes
Linear displacement transducer 101, movable block cover board 102, union (screwed)bonnet (UB 103, movable block 104 and movable block fixed plate 105；
The movable block fixed plate 105 is platy structure, and 105 center of movable block fixed plate is machined with through-hole, and movable block is solid
105 top of fixed board is provided with annular convex platform around through-hole, movable block 104 is arranged in annular convex platform, heat-transfer pipe 7 is fixed on activity
In block 104, movable block cover board 102 is pressed on 104 top of movable block by union (screwed)bonnet (UB 103, and the setting of linear displacement transducer 101 exists
102 top of movable block cover board；
102 center of movable block cover board is machined with through-hole, and the frizzen of linear displacement transducer 101 passes through movable block lid
102 through-hole of plate stretches into heat-transfer pipe 7；
As shown in figure 3, the claw fixing structure 2 is used for stationary jaw 202, the claw fixing structure 2 includes support
Bar 201, positioning pin 203, thread bush 204, spacing ring 205 and claw fixed plate 206；
The claw fixed plate 206 is platy structure, and claw fixed plate 206 is located at 105 lower section of movable block fixed plate, claw
206 center of fixed plate is machined with through-hole, and spacing ring 205 is arranged in through-hole, and through-hole is machined in spacing ring 205, is arranged in through-hole
Thread bush 204 is threaded hole in thread bush 204, and 202 hypomere of claw is cylindrical tube structure, and hypomere outer wall is machined with outer
Screw thread, 202 hypomere external screw thread of claw and the threaded hole cooperation of thread bush 204 are fixed, and 202 epimere of claw is valvular structure, including
The pawl valve of multiple separation；201 epimere of the supporting rod is cylinder cone structure, and supporting rod 201 penetrates claw 202 from bottom to top
In, positioning pin 203 is arranged in 202 middle part of claw, and positioning pin 203 limits claw 202 and 201 radial displacement of supporting rod, supporting rod 201
Relative to the axial up and down motion of claw 202；
As shown in Figure 4 and Figure 5, the claw movement structure 3 is for driving supporting rod 201 relative to 202 axial direction of claw
Lower movement；The claw movement structure 3 includes pressing plate 302, supporting rod gripping block 303, connecting plate 305, connector 307, swelling
Cylinder 308 and air cylinder fixed plate 309；
The air cylinder fixed plate 309 is platy structure, and swelling cylinder 308 is arranged in air cylinder fixed plate 309, swelling cylinder
308 output shaft upper ends are connect by connector 307 with connecting plate 305, and supporting rod gripping block 303, branch is arranged in 305 top of connecting plate
303 center of strut gripping block is machined with mounting groove, and 201 lower end of supporting rod is pressed on by pressing plate 302 in supporting rod gripping block 303
It feels at ease fixed in tankage；
The swelling cylinder 308 pushes up supporting rod gripping block 303 and 201 entirety of supporting rod moves upwards, supporting rod
201 move upwards and strut the valvular structure of 202 epimere of claw and open and firmly grasp heat-transfer pipe 7, and swelling cylinder 308 moves downward, and drives
Supporting rod gripping block 303 and 201 entirety of supporting rod move downward, and the valvular structure of 202 epimere of claw, which closes up, unclamps heat-transfer pipe 7,
Realize the opening and closing action of claw 202；
The claw movement structure 3 further includes swelling guiding axis 301, linear bearing pressing plate 304 and linear bearing 310；
The supporting rod gripping block 303 is machined with through-hole, and linear bearing 310, branch are arranged in 303 through-hole of supporting rod gripping block
303 bottom of strut gripping block is arranged linear bearing pressing plate 304 and fixes linear bearing 310, and swelling guiding axis 301 passes through linear bearing
310,301 upper end of swelling guiding axis is connect with claw fixed plate 206, and 301 lower end of swelling guiding axis is connect with connecting plate 305；With
Supporting rod 20 is set to obtain steady linear motion；
The claw movement structure 3 further includes supporting sleeve 306；The supporting sleeve 306 is round tube shape structure, and the claw is solid
Fixed board 206 and 309 both sides corresponding position of air cylinder fixed plate are machined with through-hole, and the supporting sleeve 306 connects 206 He of claw fixed plate
The through-hole of 309 both sides of air cylinder fixed plate processing, the lifting guiding axis 5 sequentially pass through 309 liang of side through hole of air cylinder fixed plate, support
Set 306 and 206 liang of side through hole of claw fixed plate pass in and out heat-transfer pipe 7 for claw 202 and provide guiding role.
When replacing claw 202, first the movable block fixed plate 105 in the pipe fixation structure 1 that conducts heat is removed, takes out positioning pin
203, thread bush 204 is unclamped, original claw 202 is unloaded；Then claw 202 to be measured is mounted on thread bush 204, and solid
Determine thread bush 204, plug positioning pin 203, corresponding heat-transfer pipe 7 and movable block 104 are replaced according to the model of tested claw 204,
The union (screwed)bonnet (UB 103 of movable block cover board 102 is fixed again, then installs movable block fixed plate 105；
The present invention is set to be in original state, i.e. for claw 202 in the lower section of heat-transfer pipe 7, claw 202 is in open configuration, swollen
Tight cylinder 308 drives supporting rod 201 to decline；When claw 202 reverts to nature shape with the decline of supporting rod 201 by open configuration
State, lifting cylinder 4 drive claw fixing structure 2 and 3 entirety of claw movement structure to move upwards, claw 202 are made to increase；Work as claw
202 head is fully inserted into heat-transfer pipe 7, and swelling cylinder 308 drives supporting rod 201 to rise again, so that claw 202 is opened, claw
202 hold 7 inner wall of heat-transfer pipe using frictional force；Supporting rod 201 can compress touching for linear displacement transducer 101 in uphill process
Send out bar；
Then lifting cylinder 4 is driven, claw 202 is pulled down the case where claw 202 holds heat-transfer pipe 7, if straight-line displacement passes
The decrement of 101 frizzen of sensor changes, then illustrates claw 202 because fatigue failure occurs in test, frictional force declines, and occurs
Sliding judges claw 202 fatigue failure if 202 slippage of claw is more than the permissible value of setting；Otherwise, i.e., claw 202 is being just
Often, experiment continues；Normal in claw 202, swelling cylinder 308 drives supporting rod 201 to drop to original position so that claw
202 collapse, and open configuration reverts to nature and is not adjacent to heat-transfer pipe, and lifting cylinder 4 drives claw 202 to drop to initial shape
State；Then above-mentioned action is repeated, until claw loses 202 effects or reaches setting testing time.
The claw 202 such as inspected by random samples in setting testing time ensures normal condition, then can determine whether this batch claw 202 substantially
Service life reach requirement.
Claims (6)
1. a kind of claw fatigue test device, it is characterised in that：The device include heat transfer pipe fixation structure, claw fixing structure,
Claw movement structure, lifting cylinder lift guiding axis and bottom plate；
The bottom plate is platy structure, and lifting cylinder, bottom plate both sides setting lifting guiding axis are arranged among bottom plate；The claw is solid
Structure is determined for stationary jaw, and the claw movement structure is for realizing the opening and closing action of claw, the claw action
Claw fixing structure is arranged in structure upper, and claw movement structure lower end exports axis connection with lifting cylinder, and lifting cylinder pushes away
Dynamic claw movement structure and claw fixing structure are whole along lifting guiding axis up and down motion, and claw is made to pass in and out heat-transfer pipe, the biography
The setting of heat pipe fixed structure is at the top of lifting guiding axis, and the heat transfer pipe fixation structure is for fixing heat-transfer pipe.
2. a kind of claw fatigue test device according to claim 1, it is characterised in that：The heat transfer pipe fixation structure packet
Include linear displacement transducer, movable block cover board, union (screwed)bonnet (UB, movable block and movable block fixed plate；
The movable block fixed plate is platy structure, and movable block fixed plate center is machined with through-hole, movable block fixed plate top edge
It is provided with annular convex platform around through-hole, movable block is set in annular convex platform, heat-transfer pipe is fixed in movable block, and union (screwed)bonnet (UB will live
Motion block cover board is pressed on movable block top, and linear displacement transducer is arranged on movable block cover board top；
The movable block cover plate central is machined with through-hole, and the frizzen of linear displacement transducer is stretched into across movable block cover plate through hole
In heat-transfer pipe.
3. a kind of claw fatigue test device according to claim 2, it is characterised in that：The claw fixing structure includes
Supporting rod, positioning pin, thread bush, spacing ring and claw fixed plate；
The claw fixed plate is platy structure, and claw fixed plate is located at below movable block fixed plate, and claw fixed plate center adds
Work has through-hole, and spacing ring is arranged in through-hole, is machined with through-hole in spacing ring, set is threaded in through-hole, is machined in thread bush
Threaded hole, claw hypomere are cylindrical tube structure, and hypomere outer wall is machined with external screw thread, the spiral shell of claw hypomere external screw thread and thread bush
Pit cooperation is fixed, and claw epimere is valvular structure, includes the pawl valve of multiple separation；The supporting rod epimere is cylinder taper knot
Structure, supporting rod penetrate in claw from bottom to top, and positioning pin is arranged in the middle part of claw, and positioning pin limits claw and supporting rod radial direction position
It moves, supporting rod axially moves up and down relative to claw.
4. a kind of claw fatigue test device according to claim 3, it is characterised in that：The claw movement structure includes
Pressing plate, supporting rod gripping block, connecting plate, connector, swelling cylinder and air cylinder fixed plate；
The air cylinder fixed plate is platy structure, and swelling cylinder is arranged in air cylinder fixed plate, and swelling cylinder output shaft upper end is logical
Connector to be crossed to connect with connecting plate, supporting rod gripping block is arranged in connecting plate top, and supporting rod gripping block center is machined with mounting groove,
Supporting rod lower end is pressed on by pressing plate in the mounting groove of supporting rod gripping block center fixed；
The swelling cylinder pushes up supporting rod gripping block and supporting rod integrally moves upwards, and supporting rod, which moves upwards, struts card
The valvular structure of pawl epimere, which opens, firmly grasps heat-transfer pipe, and swelling cylinder moves downward, and drives supporting rod gripping block and supporting rod whole
It moves downward, the valvular structure of claw epimere closes up release heat-transfer pipe, realizes the opening and closing action of claw.
5. a kind of claw fatigue test device according to claim 4, it is characterised in that：The claw movement structure also wraps
Include swelling guiding axis, linear bearing pressing plate and linear bearing；
The supporting rod gripping block is machined with through-hole, and linear bearing, supporting rod gripping block bottom is arranged in supporting rod gripping block through-hole
Portion is arranged linear bearing pressing plate and fixes linear bearing, and swelling guiding axis passes through linear bearing, swelling guiding axis upper end solid with claw
Fixed board connects, and swelling guiding axis lower end is connect with connecting plate.
6. a kind of claw fatigue test device according to claim 4, it is characterised in that：The claw movement structure also wraps
Include supporting sleeve；The supporting sleeve is round tube shape structure, and the claw fixed plate and air cylinder fixed plate both sides corresponding position are machined with
Through-hole, the through-hole of the supporting sleeve connection claw fixed plate and the processing of air cylinder fixed plate both sides, the lifting guiding axis are worn successively
Cross two side through hole of two side through hole of air cylinder fixed plate, supporting sleeve and claw fixed plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721870470.9U CN207717343U (en) | 2017-12-27 | 2017-12-27 | A kind of claw fatigue test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721870470.9U CN207717343U (en) | 2017-12-27 | 2017-12-27 | A kind of claw fatigue test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207717343U true CN207717343U (en) | 2018-08-10 |
Family
ID=63050713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721870470.9U Withdrawn - After Issue CN207717343U (en) | 2017-12-27 | 2017-12-27 | A kind of claw fatigue test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207717343U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974981A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | A kind of claw fatigue test device |
-
2017
- 2017-12-27 CN CN201721870470.9U patent/CN207717343U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974981A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | A kind of claw fatigue test device |
| CN109974981B (en) * | 2017-12-27 | 2024-05-14 | 核动力运行研究所 | Jaw fatigue testing device |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180810 Effective date of abandoning: 20240514 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180810 Effective date of abandoning: 20240514 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |