CN207336253U - Torsion test device - Google Patents
Torsion test device Download PDFInfo
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- CN207336253U CN207336253U CN201721367454.8U CN201721367454U CN207336253U CN 207336253 U CN207336253 U CN 207336253U CN 201721367454 U CN201721367454 U CN 201721367454U CN 207336253 U CN207336253 U CN 207336253U
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Abstract
A kind of torsion test device is the utility model is related to, including：Stent, turn-knob unit, the first driving unit and control unit.Turn-knob unit is arranged at stent, turn-knob unit includes the first fixture and the second fixture, first fixture and the second fixture can clamp the different parts of sample at the same time, second fixture can be rotated relative to the first fixture, first driving unit is arranged at stent, the output terminal of first driving unit and the second fixture are sequentially connected, and control unit is connected with the first driving unit, and control unit can control the operating status of the first driving unit.Above-mentioned torsion test device, first driving unit can drive the second fixture to be rotated relative to the first fixture under the control of the control unit, to realize that the mechanization of specimen surface binding force of cladding material detects, have the characteristics that the distortion angle of accurate Control Assay and testing result are stablized.
Description
Technical field
Detecting tool technical field is the utility model is related to, more particularly to a kind of torsion test device.
Background technology
With the improvement of living standards, requirement of the people to the surface quality of used product is also higher and higher.To product,
Such as wrist-watch, mobile phone, the surface progress coating of metallic rod can not only be effectively protected product surface and not be corroded, while can also rise
To beautiful effect.In use, the coating on surface may depart from matrix to product due to the reason such as fatigue or abrasion, remove
Product anticorrosion in itself and beauty are had an impact outer, can also reduce degree of recognition of the user to the quality of brand name of product.Cause
This, carries out the combination power between product surface coating and matrix detection in advance and is even more important.
Torsion test is the method that power is combined between common detection product surface coating and matrix, but traditional distortion tries
Test and carry out torsion test by manual operation more, distortion angle can not be more accurately controlled, because manual operation can not also ensure to examine
Survey the stability of result.
Utility model content
Based on this, it is necessary to which the torsion test for traditional coated article can not accurately control torsion by manual operation
A kind of the problem of bent angle and unstable testing result, there is provided torsion test device of accurate control distortion angle.
A kind of torsion test device, including：
Stent；
Turn-knob unit, is arranged at the stent, and the turn-knob unit includes the first fixture and the second fixture, first folder
Tool and the second fixture can clamp the different parts of sample at the same time, and second fixture can be revolved relative to first fixture
Turn；
First driving unit, is arranged at the stent, and the output terminal of first driving unit is passed with second fixture
Dynamic connection；
Control unit, is connected with first driving unit, and described control unit can control first driving unit
Operating status.
In one of the embodiments, first driving unit includes retarder and stepper motor, the stepper motor
The input terminal of output shaft and the retarder be sequentially connected, the output terminal of the retarder connects with second fixture transmission
Connect.
In one of the embodiments, described control unit includes input terminal, and the input terminal can receive input order
To control first driving unit.
In one of the embodiments, the torsion test device further includes the second driving unit, and second driving is single
Member includes the second driving member and rocking handle, and second driving member is arranged at the stent, the rocking handle and the described second transmission
One end of part is removably sequentially connected, and the other end of second driving member is sequentially connected with second fixture.
In one of the embodiments, the surface of the stent has rocking handle angle index line, the rocking handle angle index
Line is corresponding with the rocking handle.
In one of the embodiments, the surface of the stent has fixture angle index line, the fixture angle index
Line is corresponding with second fixture.
In one of the embodiments, the turn-knob unit further includes adjustment part, and the adjustment part can adjust the first folder
The distance between tool and the second fixture.
In one of the embodiments, the adjustment part includes screw rod and sliding block, and the screw rod is rotatably dispose in the branch
Frame, the sliding block can coordinate with the screw flight to realize the slip of the sliding block, and first fixture is fixedly installed on
The sliding block.
In one of the embodiments, the optical axis periphery of described screw rod one end offers some first location holes, Ruo Gansuo
State the first location hole to be uniformly distributed along the circumferential direction of the screw rod, the adjustment part further includes locating rod, offers on the stent
Second location hole, the locating rod can be inserted into second location hole and first location hole at the same time.
In one of the embodiments, first fixture and the second fixture are respectively provided with least two clamping positions, wherein one
Two clamping plates of a clamping position can be bonded, and have groove between two clamping plates of another clamping position.
Above-mentioned torsion test device, the first driving unit can drive the second fixture under the control of the control unit relative to
One fixture rotate, with realize the mechanization of specimen surface binding force of cladding material detect, have accurate Control Assay distortion angle with
And the characteristics of testing result stabilization.
Brief description of the drawings
Fig. 1 is the first schematic side view of the torsion test apparatus structure that one embodiment of the utility model provides；
Fig. 2 is the second schematic side view of the torsion test apparatus structure that one embodiment of the utility model provides；
Fig. 3 is the 3rd schematic side view of the torsion test apparatus structure that one embodiment of the utility model provides；
Fig. 4 is the schematic front view for the torsion test apparatus structure that one embodiment of the utility model provides；
Fig. 5 is the second clamp structure open configuration schematic diagram that one embodiment of the utility model provides；
Fig. 6 is the second clamp structure closure state schematic diagram that one embodiment of the utility model provides.
Wherein：
100- stents
110- drives lid
200- turn-knob units
The first fixtures of 210-
The second fixtures of 220-
221- rotation axis
222- fixed parts
223- clamping parts
224- fasteners
230- adjustment parts
231- screw rods
232- sliding blocks
233- rotating handleses
The first driving units of 300-
310- retarders
320- stepper motors
400- input terminals
The second driving units of 500-
Embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, by the following examples, and tie
Attached drawing is closed, a kind of torsion test device of the utility model is further elaborated.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.On the contrary, when element be referred to as " directly existing " another element " on " when,
There is no intermediary element.Term as used herein " vertically ", " horizontal ", "left", "right" and similar statement are
For illustrative purposes.Various difference objects are drawn in easy to enumerate the ratio of explanation in embodiment attached drawing, rather than by actual group
The ratio of part is drawn.
The use of the new type provides a kind of torsion test device, for being detected to the sample of overlay coating, by examination
Whether the distortion that sample carries out certain angle is qualified to detect the sample after coating.Torsion test device provided by the utility model should
Wide with scope, the combination power available for rod piece coating detects, it can also be used to the combination power detection of ring coating, in specific product
In, as long as need the product of coating torsion test device provided by the utility model to can be used to be detected, such as wrist-watch
The detection of the binding force of cladding material of product such as upper set and table body, phone housing.
As shown in Figure 1 to Figure 3, one embodiment of the utility model provides a kind of torsion test device, including stent 100, rotation
Turn round unit 200, the first driving unit 300 and control unit, turn-knob unit 200 and be arranged at stent 100, turn-knob unit 200 wraps
The first fixture 210 and the second fixture 220 are included, the first fixture 210 and the second fixture 220 can clamp the different portions of sample at the same time
Position, the second fixture 220 can be rotated relative to the first fixture 210, and the first driving unit 300 is arranged at stent 100, the first driving
The output terminal of unit 300 is sequentially connected with the second fixture 220, and control unit is connected with the first driving unit 300, control unit energy
Enough control the operating status of the first driving unit 300.
Above-mentioned torsion test device, the first driving unit 300 can drive 220 phase of the second fixture under the control of the control unit
Rotated for the first fixture 210, to realize that the mechanization of specimen surface binding force of cladding material detects, the torsion with accurate Control Assay
The characteristics of bent angle and testing result are stablized.
In the utility model, the effect of stent 100 is support turn-knob unit 200, the first driving unit 300 and control
Unit, optionally, control unit can be arranged on other devices, and between control unit and the first driving unit 300
It is electrically connected, so that control unit is controlled the working status of the first driving unit 300, realizes the second fixture of final control
220 relative to the first fixture 210 rotation.The fixation of itself of stent 100 can be fixed on workshop by fixing pieces such as bolts
Either on the basis of workshop or by the fixing pieces such as bolt be fixed on the plane of other equipment, curved surface or other not
On the face of rule.As a kind of achievable mode, the second fixture 220 can carry out under the driving of the first driving unit 300
The rotation of any angle or angular range, further, the second fixture 220 can rotate in the range of 0 ° to 360 °, further
, the rotating angle of 220 single of the second fixture can be more than 360 °, and the second fixture 220 can be rotated forward and inverted.
One embodiment of the utility model provide the first driving unit 300 effect be driving the second fixture 220 relative to
First fixture 210 rotates, finally to realize the torsion of the sample clamped by twist cell.Optionally, first driving unit 300
Power section output can be rotary motion or linear motion then by specific mechanism by the first driving unit
The linear motion of 300 outputs is converted to rotary motion, and in a specific embodiment, the first driving unit 300 includes slowing down
Device 310 and stepper motor 320, the output shaft of stepper motor 320 are sequentially connected with the input terminal 400 of retarder 310, retarder
310 output terminal is sequentially connected with the second fixture 220.Stepper motor 320 is electrically connected with control unit, being capable of reception control unit
The rotation instructed and respective angles or the number of turns are carried out according to the instruction received sent, retarder 310 are installed on stepping
Between 320 and second fixture 220 of motor, the rotary speed of the second fixture 220 can be made to be less than the rotation of 320 output shaft of stepper motor
Rotary speed, while the moment of torsion for being conveyed to the second fixture 220 is more than the output torque of stepper motor 320, stepper motor 320 is rotating
The rotary speed that speed is more than the second fixture 220 is conducive to carry out the windup-degree of the second fixture 220 using stepper motor 320
It is accurately controlled, the output torque that the moment of torsion that the second fixture 220 is born is more than stepper motor 320 also contributes to selection of small
Stepper motor 320 just can meet the torque demand of torsion test, reduce further torsion test dress provided by the utility model
The manufacture cost put.Stepper motor 320 can be rotated forward and inverted under the control of the control unit, corresponding second fixture
220 also can be rotated forward and be inverted, and further increase torsion test device that the present embodiment is provided to actual condition
Adaptability.In another specific embodiment, the first driving unit 300 includes hydraulic cylinder and rack and pinion mechanism, liquid
Cylinder pressure can be connected with hydraulic pump, and control unit is by controlling hydraulic pump to be conveyed to the liquid traffic organising hydraulic cylinder of hydraulic cylinder
The rectilinear path of hydraulic cylinder is converted into circular motion to drive the second fixture 220 relative to first by stroke, rack and pinion mechanism
The rotation of fixture 210 is to complete the distortion of sample.In other examples, the first driving unit 300 include retarder 310 with
And common direct current or alternating current generator, angular position sensor, angular position sensor are provided with the output shaft of motor
It is electrically connected with control unit, by the rotational angle Real-time Feedback of motor to control unit, finally realizes control unit to motor
Rotation control.In the present embodiment, stent 100 further includes driving lid 110, and driving lid 110 is detachably mounted to prop up
On frame 100, driving lid 110 covers the top for being located at the first driving unit 300, and driving lid 110 can protect the first driving list
Member 300, as a kind of achievable mode, the speed reducing ratio scope of retarder 310 is 1：1-1:80, rotating speed can be greatly reduced and increase
Large torque, according to selected different stepper motors and speed reducing ratio, output torque can reach 5Nm~60Nm.
In one of the embodiments, control unit includes input terminal 400, input terminal 400 can receive input order with
Control the first driving unit 300, in the present embodiment, control unit to the first driving unit 300 by conveying kinematic parameter to control
Make the operating status of the first driving unit 300.Operator can input the first driving unit by the input terminal 400 of control unit
300 kinematic parameter, including rotation direction, turnning circle or rotational angle.Optionally, the input terminal 400 of control unit can
To receive the input of program mode type, or the input terminal 400 of control unit has user oriented interface, and operator can be straight
It is connected on and the first driving unit 300 or the second fixture 220 corresponding kinematic parameter, control unit energy is inputted in operation interface
It is enough that the parameter received is subjected to program mode conversion and controls the first driving unit 300 to drive the rotation of the second fixture 220, most
The distortion of sample is realized eventually.The input terminal 400 of control unit facilitates operator and the running parameter of torsion test device is carried out
Set, in order to which torsion test device provided in this embodiment can adapt to the different distortion angles of various sample.At one
In specific embodiment, input terminal 400 includes miniscope and some buttons, and example can be inputted in the display by button
Such as the turnning circle turnning circle that either a series of order the present embodiment of angle refers to or angle etc. can be the second fixtures
220 turnning circle either angle or the turnning circle or angle of stepper motor 320.
In order to improve adaptability of the torsion test device provided by the utility model to various operating modes, as shown in figure 4,
In one embodiment, torsion test device further includes the second driving unit 500, and the second driving unit 500 includes second and passes
Moving part and rocking handle, the second driving member are arranged at stent 100, and one end of rocking handle and the second driving member is removably sequentially connected,
The other end of second driving member is sequentially connected with the second fixture 220.Optionally, the second driving member can be directly embedded in deceleration
In device 310, in this case, retarder 310 has at least two input terminals 400 to be passed respectively with stepper motor 320 and rocking handle
Dynamic connection, and stepper motor 320 and rocking handle can individually drive retarder 310, the second driving member can also be setting
Single drive mechanism in stent 100, such as bevel gear, worm and gear etc..The presence of second driving unit 500 to turn round
Bent experimental rig still can temporarily be run in the case of non-communicated power supply or out of power, to meet some urgent timess
Business.Further, the model of rocking handle can be diversified, and diversified rocking handle disclosure satisfy that right during the distortion of various sample
The requirement of moment of torsion.Further, the surface of stent 100 has rocking handle angle index line, rocking handle angle index line and rocking handle phase
It is corresponding.During the distortion of sample, calculating that can be Jing Guo speed reducing ratio, calculates the angular speed of rocking handle and the second fixture 220
Than the rotation angle of rocking handle corresponding with 220 rotation angle of the second fixture then being precomputed, in order to accurate Control Assay
Distortion angle.
In order to more intuitively obtain the distortion angle of sample, in one of the embodiments, the surface of stent 100 has folder
Has angle index line, fixture angle index line is corresponding with the second fixture 220.Driving and controlling using stepper motor 320
During the torsion of the second fixture 220, can precalculate and input stepper motor 320 in once experiment needs rotating angle,
In the rotary course of stepper motor 320, operator can be primarily focused on sample, and can by with the second fixture
220 corresponding fixture angle index lines directly learn the real-time distortion angle of sample, if the specimen surface during distortion
Coating has obscission, also can in time, accurately record the relevant test data such as distortion angle, is the analysis of test data
Accurate data source is provided.Further, when needing to be corrected after distorting Sample devices using a period of time, fixture angle
Graduation mark can also play the role of correcting torsion test device.In a specific embodiment, fixture angle index line is marked
The angular range of note is 0 ° to 360 °, and the resolution ratio of mark is 1 °, in other examples, the scope of fixture angle index line
It can be designed with resolution ratio according to actual production requirement.As a kind of achievable mode, fixture angle index line can be
On dial, the shaft of dial and the second fixture 220 is coaxially disposed.
In order to improve versatility of the torsion test device provided by the utility model to different sized samples, wherein one
In a embodiment, turn-knob unit 200 further includes adjustment part 230, and adjustment part 230 can adjust the first fixture 210 and the second fixture
The distance between 220.In actual production process, generally require and torsion test is carried out to a variety of different products, or it is right
The sample of a variety of different sizes of identical product carries out torsion test, while manufactures the torsion of corresponding different product, different size sample
Bent experimental rig needs great cost input, is unfavorable for the development of enterprise, torsion test device provided in this embodiment, due to
The distance between first fixture 210 and second fixture 220 can adjust, and improve torsion provided in this embodiment to a certain extent
Versatility of the bent experimental rig to actual condition.Further, adjustment part 230 can realize the first fixture 210 and the second fixture 220
Between distance continuous adjustment.The continuous adjustment of distance, further increases this between first fixture 210 and the second fixture 220
Versatility of the torsion test device that embodiment provides to different sized samples.As a kind of achievable mode, adjustment part 230
Including screw rod 231 and sliding block 232, screw rod 231 is rotatably dispose in stent 100, sliding block 232 can with 231 thread fitting of screw rod with
Realize the slip of sliding block 232, the first fixture 210 is fixedly installed on sliding block 232, specifically, offering sliding slot, spiral shell on stent 100
Bar 231 is rotatably arranged on the bottom of sliding slot, and the extending direction of screw rod 231 is identical with the extending direction of sliding slot, while the side of sliding slot
Wall plays sliding block 232 spacing effect so that sliding block 232 can only be moved along the extending direction of screw rod 231.More specifically, spiral shell
Screw thread on bar 231 has an auto-lock function, such as single head coarse thread, the auto-lock function between screw rod 231 and sliding block 232 are favourable
Kept constant in the distance during torsion test between the first fixture 210 and the second fixture 220, guarantee obtains experiment number
According to accuracy.
In one of the embodiments, the optical axis periphery of 231 one end of screw rod offers some first location holes, and some first
Location hole is uniformly distributed along the circumferential direction of screw rod 231, and adjustment part 230 further includes locating rod, and the second positioning is offered on stent 100
Hole, locating rod can be inserted into the second location hole and the first location hole at the same time.Optionally, the first positioning is offered on screw rod 231
The one end in hole can be proximate to one end of the second fixture 220 or one end away from the second fixture 220.Specifically, screw rod
One end that the first location hole is offered on 231 is one end away from the second fixture 220, away from the second fixture 220 on screw rod 231
One end open up the first location hole, operator is operated in the position away from the second fixture 220, can not only stock effectively protect behaviour
The safety of author, and convenient operation.In a specific embodiment, the first location hole is blind hole, and the second location hole is logical
Hole, the quantity of the second location hole is one, and the quantity of the first location hole is 12, and 12 the first location holes are in screw rod 231
One end away from the second fixture 220 is uniformly distributed along the circumferencial direction of screw rod 231, and the second location hole and the first location hole are in screw rod
It is correspondingly arranged on 231 extending direction, locating rod is straight pin, and the first location hole is identical with the internal diameter of the second location hole, first
The internal diameter of location hole and the second location hole is bigger 0.03mm-0.05mm than the outside diameter of locating rod.Further, adjustment part 230 further includes
Rotating handles 233, rotating handles 233 can be sequentially connected with screw rod 231, as a kind of achievable mode, rotating handles 233
It is key connection between screw rod 231.The positioning function of adjustment part 230 can prevent disturbance during torsion test to screw rod
231 influence, in other examples, depending on the quantity and distribution form of the first location hole can be according to actual conditions,
The quantity of two location holes can also be multiple.Rotating handles 233 plays the role of lever, in driving 231 rotating process of screw rod
Middle operator can be laborsaving.In another embodiment, screw rod 231 also has the rotation driving mode of mechanization, as motor drives
Move.
In order to further improve versatility of the torsion test device provided by the utility model to sample, as shown in figure 4,
In one of the embodiments, the first fixture 210 and the second fixture 220 are respectively provided with least two clamping positions, one of clamping
Two clamping plates of position can be bonded, and have groove between two clamping plates of another clamping position, and at least two clamping potential energies enough divide
Various sizes of sample is not clamped.Enough sample of the clamping with different appearance and sizes respectively of two clamping potential energies, such as Fig. 5 and Fig. 6
Shown, the second fixture 220 includes rotation axis 221, fixed part 222, clamping part 223 and fastener 224, and rotation axis 221 can
It is sequentially connected with the output terminal of retarder 310, two clamping parts 223 are rotatably dispose in fixed part 222, the both ends of fastener 224
It is thread spindle, the thread spindle at 224 both ends of fastener is threadedly coupled with two clamping parts 223 respectively, is had among fastener 224
Roller, rotation roller are the close or remote of achievable two clamping parts 223.In another embodiment, every distortion examination
Experiment device is provided with some fixtures to different size, so that the torsion test device of the utility model disclosure satisfy that different sizes
The clamping requirement of sample.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the utility model, its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
- A kind of 1. torsion test device, it is characterised in that including：Stent；Turn-knob unit, is arranged at the stent, and the turn-knob unit includes the first fixture and the second fixture, first fixture and Second fixture can clamp the different parts of sample at the same time, and second fixture can be rotated relative to first fixture；First driving unit, is arranged at the stent, and the output terminal of first driving unit connects with second fixture transmission Connect；Control unit, is connected with first driving unit, and described control unit can control the fortune of first driving unit Row state.
- 2. torsion test device according to claim 1, it is characterised in that first driving unit include retarder and Stepper motor, the output shaft of the stepper motor and the input terminal of the retarder are sequentially connected, the output terminal of the retarder It is sequentially connected with second fixture.
- 3. torsion test device according to claim 1, it is characterised in that described control unit includes input terminal, described Input terminal can receive input order to control first driving unit.
- 4. torsion test device according to claim 1, it is characterised in that further include the second driving unit, described second Driving unit includes the second driving member and rocking handle, and second driving member is arranged at the stent, the rocking handle and described the One end of two driving members is removably sequentially connected, and the other end of second driving member is sequentially connected with second fixture.
- 5. torsion test device according to claim 4, it is characterised in that carved with rocking handle angle on the surface of the stent Line is spent, the rocking handle angle index line is corresponding with the rocking handle.
- 6. torsion test device according to claim 1, it is characterised in that carved with fixture angle on the surface of the stent Line is spent, the fixture angle index line is corresponding with second fixture.
- 7. torsion test device according to claim 1, it is characterised in that the turn-knob unit further includes adjustment part, institute The distance between the first fixture and the second fixture can be adjusted by stating adjustment part.
- 8. torsion test device according to claim 7, it is characterised in that the adjustment part includes screw rod and sliding block, institute To state screw rod and be rotatably dispose in the stent, the sliding block can coordinate with the screw flight to realize the slip of the sliding block, First fixture is fixedly installed on the sliding block.
- 9. torsion test device according to claim 8, it is characterised in that the optical axis periphery of described screw rod one end offers Some first location holes, some first location holes are uniformly distributed along the circumferential direction of the screw rod, and the adjustment part further includes fixed Position bar, offers the second location hole on the stent, and the locating rod can be inserted into second location hole and described at the same time First location hole.
- 10. torsion test device according to claim 1, it is characterised in that first fixture and the second fixture have There are at least two clamping positions, two clamping plates of one of them clamping position can be bonded, two of another clamping position There is groove between clamping plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721367454.8U CN207336253U (en) | 2017-10-23 | 2017-10-23 | Torsion test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721367454.8U CN207336253U (en) | 2017-10-23 | 2017-10-23 | Torsion test device |
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| CN207336253U true CN207336253U (en) | 2018-05-08 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540698A (en) * | 2019-01-09 | 2019-03-29 | 深圳天祥质量技术服务有限公司 | Torque fatigue test device and method |
| CN109540699A (en) * | 2019-01-10 | 2019-03-29 | 江苏华神特种橡胶制品股份有限公司 | A kind of rubber hose sub-assembly torsion test device |
| CN110231236A (en) * | 2019-06-26 | 2019-09-13 | 江苏通光电子线缆股份有限公司 | Cable anti-torsion performance test apparatus and test method |
| CN111122351A (en) * | 2019-11-27 | 2020-05-08 | 河南航天精工制造有限公司 | Spring washer toughness test device |
| CN112213208A (en) * | 2020-09-07 | 2021-01-12 | 深圳技术大学 | Torsion testing machine |
| CN112903469A (en) * | 2019-11-19 | 2021-06-04 | 中国石油化工股份有限公司 | Testing device for downhole tool |
-
2017
- 2017-10-23 CN CN201721367454.8U patent/CN207336253U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540698A (en) * | 2019-01-09 | 2019-03-29 | 深圳天祥质量技术服务有限公司 | Torque fatigue test device and method |
| CN109540699A (en) * | 2019-01-10 | 2019-03-29 | 江苏华神特种橡胶制品股份有限公司 | A kind of rubber hose sub-assembly torsion test device |
| CN110231236A (en) * | 2019-06-26 | 2019-09-13 | 江苏通光电子线缆股份有限公司 | Cable anti-torsion performance test apparatus and test method |
| CN112903469A (en) * | 2019-11-19 | 2021-06-04 | 中国石油化工股份有限公司 | Testing device for downhole tool |
| CN112903469B (en) * | 2019-11-19 | 2024-04-26 | 中国石油化工股份有限公司 | Testing device for downhole tool |
| CN111122351A (en) * | 2019-11-27 | 2020-05-08 | 河南航天精工制造有限公司 | Spring washer toughness test device |
| CN112213208A (en) * | 2020-09-07 | 2021-01-12 | 深圳技术大学 | Torsion testing machine |
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