CN104913761B - The deformation quantity measuring method and detection device of function handcart chassis vehicle - Google Patents
The deformation quantity measuring method and detection device of function handcart chassis vehicle Download PDFInfo
- Publication number
- CN104913761B CN104913761B CN201510385497.8A CN201510385497A CN104913761B CN 104913761 B CN104913761 B CN 104913761B CN 201510385497 A CN201510385497 A CN 201510385497A CN 104913761 B CN104913761 B CN 104913761B
- Authority
- CN
- China
- Prior art keywords
- chassis vehicle
- motor
- car frame
- handcart
- function
- 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
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000001514 detection method Methods 0.000 title abstract description 15
- 238000012360 testing method Methods 0.000 claims abstract description 17
- 238000005259 measurement Methods 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000003068 static effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000012550 audit Methods 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
Abstract
The present invention relates to the deformation quantity measuring method of function handcart chassis vehicle and detection devices.Wherein the device for testing deformation amount of function handcart chassis vehicle includes for the rigid stop part in handcart room to cooperate before motor-car frame reaches stroke end with the front block of motor-car frame to be arranged in, and further includes the driving device for applying the setting driving force of constant magnitude to motor-car frame.By the way that rigid Stop structure is arranged in handcart room, and the driving device of the setting driving force for applying constant magnitude to motor-car frame by pushing mechanism is set, chassis vehicle can be measured respectively by the deflection before and after setting driving force as δ 1, δ 2, so as to quantify deflection δ=δ 2- δ 1 of chassis vehicle, it realizes the detection to the deflection of function handcart chassis vehicle, and then determines whether the intensity of chassis vehicle is qualified.
Description
Technical field
The present invention relates to the deformation quantity measuring method of function handcart chassis vehicle and detection devices.
Background technique
Middle-placed switch cabinet is a kind of switchgear, and full name is metal armouring middle disposed withdrawn type switchgear, belongs to high voltage power distribution dress
It sets, such as widely used KYN28 series middle-placed switch cabinet, because setting in its function handcart, easy to operate, easy to maintain, interchangeability is strong
The features such as, it is had been widely used in 35kV, 10kV electric system.Middle-placed switch cabinet is generally by control room, handcart room, bus-bar room
With four, cable vault compartment composition, divide three-decker, upper layer is control room and bus-bar room (mutually isolated), middle layer are handcart
Room, lower layer are cable vault.Wherein, it can be packed into the handcart of multiple functions in handcart room, such as circuit breaker cart, isolated hand car, connect
Ground handcart, metering handcart, PT hand car, arrester handcart etc. realize different purposes by different function handcarts.Function handcart
The function device for generally comprising chassis vehicle with motor-car frame and being arranged on motor-car frame, motor-car frame guiding movement along the longitudinal direction
Assembly is equipped on a chassis, between motor-car frame and the crossbeam at chassis vehicle rear portion for driving motor-car frame front and back guiding movement
Pushing mechanism, pushing mechanism uses leadscrew-nut mechanism, and rear end can connect rocking handle, pass through rocking handle and drive lead screw rotation.
It being found in long-term production, use process, switchgear dynamic/static contact often will appear the inadequate situation of Bite size,
Easily lead to dynamic/static contact poor contact, so that the problems such as overheat burning is melted, contact arm is broken, or even meeting occurs in dynamic/static contact junction
Develop into power grid accident.Currently, contact Bite size can generally be detected in order to avoid there is above situation, such as
Application No. is the Chinese patents that 201420396190.9, Authorization Notice No. is 204007502 U of CN with regard to a kind of disclosed measurement touching
Head the depth of engagement device, still, occur the inadequate reason of contact Bite size first is that motor-car frame is being pushed from initial position
After device effect is moved to stroke end, the stress of motor-car frame can change and be deformed, and only detection contact engages
Size can not solve the problems, such as from the root.And the intensity of function handcart chassis vehicle is to guarantee the basis of dynamic/static contact reliable contacts,
And having much relations with the quality of product, the deflection of audit function handcart chassis vehicle can effectively control dynamic/static contact engagement
The inadequate situation of size determines whether chassis vehicle intensity meets the requirements that is, before assembling function handcart.But it yet there are no
Dedicated for the method and device of detection function handcart chassis vehicle deflection.
Summary of the invention
The object of the present invention is to provide a kind of deformation quantity measuring methods of function handcart chassis vehicle, to realize to function handcart
The detection of the deflection of chassis vehicle；Meanwhile the detection device that the present invention provides a kind of to design to implement this method.
In the present invention function handcart chassis vehicle deformation quantity measuring method the technical solution adopted is that: function handcart chassis vehicle
Deformation quantity measuring method, method includes the following steps: Step 1: in handcart room setting for motor-car frame reach stroke
The rigid Stop structure cooperated before terminal with the front block of motor-car frame；Step 2: the motor-car frame on driving chassis vehicle is by first
Beginning position is mobile to stroke end, until the chassis vehicle contact rigid Stop structure；Step 3: before the crossbeam of measurement chassis vehicle
Spacing L11, L21, L31 of measurement point are set between side plane and the side plane of motor-car frame at left, center, right three, definition is at this time
The deflection of chassis vehicle is 1=L21-0.5*(L31+L11 of δ)；Step 4: applying greatly by corresponding driving device to motor-car frame
Small constant setting driving force, measure again at this time between the crossbeam front plan of chassis vehicle and the side plane of motor-car frame it is left,
In, the right side three at set measurement point spacing L12, L22, L32, definition at this time chassis vehicle deflection be 2=L22-0.5*(L32+ of δ
L12)；Step 5 calculates deflection δ=δ 2- δ 1 of chassis vehicle.
This method further includes the steps that measuring n platform function handcart moves to active force M1 ~ Mn required for stroke end, institute
Stating setting driving force is active force corresponding with the maximum value in M1 ~ Mn.
The active force for driving motor-car frame to stroke end movement on chassis vehicle is by the leadscrew-nut mechanism on chassis vehicle
It generates, the driving device includes the wrest fixing spanner on the spin-ended lead screw being connected in the leadscrew-nut mechanism, the setting
Driving force is generated by the wrest fixing spanner.
The rigidity Stop structure is the support cylindricality by being used to support between the front and handcart chamber interior walls of chassis vehicle
At.
The support column is equipped with three with setting measurement point correspondence at left, center, right three, and the cross section of support column is
Through-hole is equipped at square and axle center.
In the present invention function handcart chassis vehicle device for testing deformation amount the technical solution adopted is that: function handcart chassis vehicle
Device for testing deformation amount, the device include for be arranged in handcart room with motor-car frame reach stroke end before with motor-car
The rigid stop part of the front block cooperation of frame further includes the driving for applying the setting driving force of constant magnitude to motor-car frame
Device.
The driving device includes the rocking handle on the spin-ended lead screw being assemblied in chassis vehicle upper leading screw nut body, institute
It states and is equipped with spanner transmission connecting structure at the axis of rotation of rocking handle, the driving device further includes being transferred on described pull for spin-ended
Wrest fixing spanner on hand transmission connecting structure.
The spanner transmission connecting structure is the axle sleeve being fixed at the rocking handle centre of gyration, and the axle sleeve, which is equipped with, to be supplied
The spin-ended square hole plugged of square shaft of the output end of the wrest fixing spanner is set.
The rigidity stop part is formed by the support column being used to support between the front and handcart chamber interior walls of chassis vehicle,
The length of the support column is less than the stroke length of motor-car frame.
The support column is equipped with for three with setting measurement point correspondence at the left, center, right three on chassis vehicle, branch
The cross section of dagger is square and is equipped with through-hole at axle center.
The present invention by adopting the above technical scheme, by the way that rigid Stop structure is arranged in handcart room, and is arranged for passing through
Pushing mechanism applies the driving device of the setting driving force of constant magnitude to motor-car frame, can measure respectively chassis vehicle and be set
Deflection before and after driving force is that δ 1, δ 2 realize so as to quantify deflection δ=δ 2- δ 1 of chassis vehicle to function handcart bottom
The detection of the deflection of jiggering, and then determine whether the intensity of chassis vehicle is qualified, the quality and fortune of assurance function handcart chassis vehicle
Row stability, at low cost, easy to use, swift to operate, detection efficiency is high, can play and improve working efficiency and avoid safety hidden
The effect of trouble helps to improve the stability of switchgear.Also, front and back is used to measure 1=L21-0.5*(L31+ of deflection δ
L11), 2=L22-0.5*(L32+L12 of deflection δ) and deflection is calculated in the way of δ=δ 2- δ 1, since chassis vehicle promotes stroke
Influence for switchgear dynamic/static contact Bite size is very big, and the margin of tolerance requires very high, the chassis obtained by the method
Vehicle deflection is accurate, can accurately determine whether its deflection meets tolerance.
Detailed description of the invention
Fig. 1 is the usage state diagram of one embodiment of the device for testing deformation amount of function handcart chassis vehicle in the present invention
One；
Fig. 2 is the usage state diagram of one embodiment of the device for testing deformation amount of function handcart chassis vehicle in the present invention
Two；
Fig. 3 is the usage state diagram of one embodiment of the device for testing deformation amount of function handcart chassis vehicle in the present invention
Three；
Fig. 4 is the longitudinal sectional view of support column in Fig. 1；
Fig. 5 is the transverse sectional view of support column in Fig. 1；
Fig. 6 is the structural schematic diagram of driving device in Fig. 1.
The corresponding title of each appended drawing reference in figure are as follows: 1- handcart room, 2- chassis vehicle, 3- motor-car frame, 4- crossbeam, 5- lead screw spiral shell
Parent agency, 6- lead screw, 7- support column, 8- rocking handle, 9- axle sleeve, 10- wrest fixing spanner.
Specific embodiment
One embodiment of the device for testing deformation amount of function handcart chassis vehicle is as shown in Fig. 1 ~ Fig. 6 in the present invention, including
For the support column in handcart room to cooperate before motor-car frame reaches stroke end with the front block of motor-car frame to be arranged in, also
Including for applying the rocking handle of setting driving force of constant magnitude, axle sleeve and calmly to motor-car frame by the pushing mechanism on chassis vehicle
Turn round spanner.
Support column is the cylinder that cross section was square and was equipped at axle center through-hole, and when use is supported on the front of chassis vehicle
Between handcart chamber interior walls, rigid stop part is constituted, length L is less than what motor-car frame was moved from initial position towards operating position
Stroke L0, with guarantee motor-car frame can normal movement, and length L preferably takes smaller value, is existed with more preferable simulation motor-car frame
State when being contacted with static contact.
For the spin-ended assembly of rocking handle on a chassis on the lead screw of pushing meanss, axle sleeve is weldingly fixed on rocking handle backwards to the outer of crossbeam
Side, axle sleeve are equipped with the spin-ended square hole plugged of square shaft of the output end for wrest fixing spanner, and wrest fixing spanner is connectable on axle sleeve
Apply the torque of setting to lead screw, and then applies the setting driving force of constant magnitude to motor-car frame by leadscrew-nut mechanism.On
Rocking handle, axle sleeve and wrest fixing spanner is stated to constitute for the setting by the pushing mechanism on chassis vehicle to motor-car frame application constant magnitude
The driving device of driving force.
When detecting the deflection of chassis vehicle, the intermediate point and motor-car frame left and right directions two of left and right directions are selected on motor-car frame
3 points of end center point of side girder are as setting measurement point.In the present embodiment, since the front end of motor-car frame is plane, branch
Dagger is equipped with identical three, is arranged respectively with three setting measurement point correspondences, to protect raising measurement accuracy.Support
The through-hole of axis of a cylinder heart setting is circular hole, can avoid the lead screw end that the middle position of motor-car frame front end is stretched out.
The current basic stroke of function handcart chassis vehicle has: 200mm-12kV, 300mm-24kV, the margin of tolerance are generally -2mm
~0；Chassis vehicle deflection can be detected according to actual requirement, and make whether satisfactory judgement.Detection function
The method of the deflection of handcart chassis vehicle is as follows:
1) n platform is assembled complete function handcart to be placed into corresponding switch cabinet handcart room, measures n platform function handcart
From initial position shake into switchgear and reach form terminal (i.e. arrival operating position) needed for torque M1 ~ Mn, taken from M1 ~ Mn
Peak torque Mmax；
2) tested brake handcart chassis vehicle is placed into test switch cabinet handcart room and is at initial position,
The crossbeam of chassis vehicle is fixed with switchgear at this time；Test is the switchgear of actual production with switchgear；
3) three support columns are separately fixed at along the longitudinal direction on the inner wall of handcart room, set and surveys at fixed position and three
Amount point corresponds to, as shown in Figure 1；
It 4) is Mmax by the torque setting of wrest fixing spanner；
5) motor-car frame is shaken from initial position into until the front end of motor-car frame and the rear end face of support column connect with rocking handle
Touching；
6) it measures to set at left, center, right three between the crossbeam front plan of chassis vehicle and the side plane of motor-car frame and measure
Spacing L11, L21, L31 of point, the deflection for defining chassis vehicle at this time is 1=L21-0.5*(L31+L11 of δ), as shown in Figure 2；
7) wrest fixing spanner is connected on axle sleeve, continues to shake precession vehicle frame by wrest fixing spanner, until torque setting is
The wrest fixing spanner of Mmax is threaded off, at this point, the active force for the constant magnitude that motor-car frame is applied by leadscrew-nut mechanism.
8) it measures to set at left, center, right three between the crossbeam front plan of chassis vehicle and the side plane of motor-car frame and measure
Spacing L12, L22, L32 of point, the deflection for defining chassis vehicle at this time is 2=L22-0.5*(L32+L12 of δ), as shown in Figure 3；
9) the deflection δ=δ 2- δ 1 for calculating function handcart chassis vehicle, according to deflection δ data, that is, can determine that chassis vehicle
Whether intensity meets the requirements.
Above-mentioned detection method is one embodiment of the deformation quantity measuring method of function handcart chassis vehicle in the present invention.When
So, above-mentioned detection device and method are also suitable the chassis vehicle of other strokes.
In the above-described embodiments, test is the switchgear of actual production with switchgear, and rigid Stop structure is by support column
It is formed, and driving device has used wrest fixing spanner.In other embodiments, test switchgear may be that simulation actual production is opened
The tooling of cabinet is closed, rigid Stop structure also could alternatively be the form other than support column, such as gear is fixedly installed in handcart room
Block, or fixed stop is directly set in tooling；And driving device can also replace with according to the actual situation other forms, example
If do not used rocking handle, directly adopt wrest fixing spanner or with torque setting function electric wrench driving guide screw movement, for another example for
Raising testing efficiency, can not use leadscrew-nut mechanism, not by pushing meanss, and directly adopt pneumatic cylinder or hydraulic cylinder
Deng the setting driving force to motor-car frame application constant magnitude, the size for setting driving force can be by adjusting pneumatic cylinder or hydraulic cylinder
On valve realize, be easy to implement automatic detection in this way.
In addition, in the above-described embodiments, setting driving force is active force corresponding with the maximum value in M1 ~ Mn, at other
In embodiment, which can also use other values, such as the average value of M1 ~ Mn, function when designing switchgear for another example
Handcart moves to the design value etc. of active force required for stroke end.Furthermore measurement point is set at three in above-described embodiment
Position can also be adjusted, and be divided into the left, center, right three between the crossbeam front plan of chassis vehicle and the side plane of motor-car frame
Place.
Claims (9)
1. the deformation quantity measuring method of function handcart chassis vehicle, it is characterised in that method includes the following steps: Step 1: in hand
Rigid Stop structure of the setting for cooperating before motor-car frame reaches stroke end with the front block of motor-car frame in car room；Step
Rapid two, drive the motor-car frame on chassis vehicle mobile from initial position to stroke end, until rigidity block described in dynamic frame contact
Structure；It is surveyed Step 3: being set at left, center, right three between the crossbeam front plan of measurement chassis vehicle and the side plane of motor-car frame
Spacing L11, L21, L31 of point are measured, the deflection for defining chassis vehicle at this time is 1=L21-0.5*(L31+L11 of δ)；Step 4: according to
The setting driving force for applying constant magnitude to motor-car frame by corresponding driving device measures the crossbeam front side of chassis vehicle again at this time
Spacing L12, L22, the L32 for setting measurement point between plane and the side plane of motor-car frame at left, center, right three, define bottom at this time
The deflection of jiggering is 2=L22-0.5*(L32+L12 of δ)；Step 5 calculates deflection δ=δ 2- δ 1 of chassis vehicle；This method is also
Include the steps that measuring n platform function handcart moves to active force M1 ~ Mn required for stroke end, the setting driving force be with
The corresponding active force of maximum value in M1 ~ Mn.
2. the deformation quantity measuring method of function handcart chassis vehicle according to claim 1, it is characterised in that: driving chassis vehicle
On motor-car frame to the mobile active force in stroke end be to be generated by the leadscrew-nut mechanism on chassis vehicle, the driving device packet
The wrest fixing spanner on the spin-ended lead screw being connected in the leadscrew-nut mechanism is included, the setting driving force is to determine torsion by described
Spanner generates.
3. the deformation quantity measuring method of function handcart chassis vehicle according to claim 1, it is characterised in that: the rigidity gear
Only structure is formed by the support column being used to support between the front and handcart chamber interior walls of chassis vehicle.
4. the deformation quantity measuring method of function handcart chassis vehicle according to claim 3, it is characterised in that: the support column
Equipped with three with setting measurement point correspondence at left, center, right three, the cross section of support column is square and is equipped at axle center
Through-hole.
5. the function handcart chassis vehicle for the deformation quantity measuring method for implementing function handcart chassis vehicle as described in claim 1
Device for testing deformation amount, it is characterised in that: the device includes whole to reach stroke in motor-car frame for being arranged in handcart room
The rigid Stop structure cooperated before point with the front block of motor-car frame further includes for applying setting for constant magnitude to motor-car frame
Determine the driving device of driving force, the setting driving force is to move to work required for stroke end with measurement n platform function handcart
The corresponding active force of maximum value firmly in M1 ~ Mn.
6. the device for testing deformation amount of function handcart chassis vehicle according to claim 5, it is characterised in that: the driving dress
It sets including the rocking handle on the spin-ended lead screw being assemblied in chassis vehicle upper leading screw nut body, at the axis of rotation of the rocking handle
Equipped with spanner transmission connecting structure, the driving device further includes being transferred on the spanner transmission connecting structure for spin-ended
Wrest fixing spanner.
7. the device for testing deformation amount of function handcart chassis vehicle according to claim 6, it is characterised in that: the spanner passes
Dynamic connection structure is the axle sleeve being fixed at the rocking handle centre of gyration, and the axle sleeve is equipped with for being arranged in the wrest fixing spanner
Output end the spin-ended square hole plugged of square shaft.
8. according to the device for testing deformation amount of function handcart chassis vehicle described in claim 5 or 6 or 7, it is characterised in that: described
Rigid Stop structure is formed by the support column being used to support between the front and handcart chamber interior walls of chassis vehicle, the support column
Length be less than motor-car frame stroke length.
9. the device for testing deformation amount of function handcart chassis vehicle according to claim 8, it is characterised in that: the support column
It is pros equipped with the cross section for three with setting measurement point correspondence at the left, center, right three on chassis vehicle, support column
Through-hole is equipped at shape and axle center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510385497.8A CN104913761B (en) | 2015-06-30 | 2015-06-30 | The deformation quantity measuring method and detection device of function handcart chassis vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510385497.8A CN104913761B (en) | 2015-06-30 | 2015-06-30 | The deformation quantity measuring method and detection device of function handcart chassis vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104913761A CN104913761A (en) | 2015-09-16 |
| CN104913761B true CN104913761B (en) | 2019-11-08 |
Family
ID=54083031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510385497.8A Expired - Fee Related CN104913761B (en) | 2015-06-30 | 2015-06-30 | The deformation quantity measuring method and detection device of function handcart chassis vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104913761B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2563797Y (en) * | 2002-07-24 | 2003-07-30 | 汕头经济特区电器仪表成套厂 | Hand vehicle type electric switch cabinet driving device |
| CN201498906U (en) * | 2009-08-28 | 2010-06-02 | 常州森吉制药设备制造有限公司 | Electric chassis vehicle |
| CN202915892U (en) * | 2012-10-29 | 2013-05-01 | 广东生益科技股份有限公司 | Apparatus for testing deformation degree of flat board |
| CN104215195A (en) * | 2014-09-23 | 2014-12-17 | 苏州精创光学仪器有限公司 | Glass panel automatic warping degree measurement instrument |
| CN104369267A (en) * | 2014-10-30 | 2015-02-25 | 中铁三局集团有限公司 | Device and method for detecting deformation of tensioned cross beams of CRTS III two-way pretensioned prestressed track slab |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010288344A (en) * | 2009-06-10 | 2010-12-24 | Japan Ae Power Systems Corp | Breaker drawer device |
-
2015
- 2015-06-30 CN CN201510385497.8A patent/CN104913761B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2563797Y (en) * | 2002-07-24 | 2003-07-30 | 汕头经济特区电器仪表成套厂 | Hand vehicle type electric switch cabinet driving device |
| CN201498906U (en) * | 2009-08-28 | 2010-06-02 | 常州森吉制药设备制造有限公司 | Electric chassis vehicle |
| CN202915892U (en) * | 2012-10-29 | 2013-05-01 | 广东生益科技股份有限公司 | Apparatus for testing deformation degree of flat board |
| CN104215195A (en) * | 2014-09-23 | 2014-12-17 | 苏州精创光学仪器有限公司 | Glass panel automatic warping degree measurement instrument |
| CN104369267A (en) * | 2014-10-30 | 2015-02-25 | 中铁三局集团有限公司 | Device and method for detecting deformation of tensioned cross beams of CRTS III two-way pretensioned prestressed track slab |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104913761A (en) | 2015-09-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203798552U (en) | Automobile side protection intensity detection testing bench | |
| CN105651495B (en) | Swing arm class part durability degree test-bed | |
| CN205785637U (en) | A kind of parking braking system detection device | |
| CN103558050B (en) | A kind of Multifunctional load stimulation test stand | |
| DE102011088424B4 (en) | Test device for a roller test bench | |
| CN104913761B (en) | The deformation quantity measuring method and detection device of function handcart chassis vehicle | |
| CN104897412A (en) | Loading device for axle housing bench test of passenger car | |
| EP2838767A1 (en) | Method for adjusting a parking brake in a vehicle | |
| CN106053097B (en) | A kind of high-precision flat plate type brake test bench | |
| CN203732049U (en) | Plate spring longitudinal and torsional center testing device | |
| DE102013001088B4 (en) | Battery dummy | |
| CN202886177U (en) | Comprehensive testing machine for electro-hydraulic servo steel strands | |
| CN204854708U (en) | Deflection detection device of function handcart chassis car | |
| CN204405174U (en) | A kind of proving installation of LOAD CELLS | |
| CN204461659U (en) | A kind of Dynamic High-accuracy thrust measurement system of miniature firer's acting device | |
| CN111707469B (en) | Helicopter tail reducer control shaft force loading test device | |
| CN103163027A (en) | Minitype electronic tension tester | |
| CN204944375U (en) | Train wheel axle suspension bearing box transverse momentum measurement mechanism | |
| CN110618090A (en) | Road surface skid resistance testing arrangement | |
| CN105953966A (en) | Pedal force characteristic test bench | |
| CN203572673U (en) | Multifunctional load simulation test bench | |
| CN106769493B (en) | Pseudo triaxial testing device based on dynamic fatigue testing machine | |
| CN210863384U (en) | Rivet stretching resistance tester | |
| CN210623233U (en) | Loading device capable of storing energy | |
| CN105938770A (en) | Contact base, manufacturing method of contact base and circuit breaker employing contact base |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191108 Termination date: 20200630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |