CN106644442A - Torsion spring fixed angle force measuring device - Google Patents
Torsion spring fixed angle force measuring device Download PDFInfo
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- CN106644442A CN106644442A CN201611202184.5A CN201611202184A CN106644442A CN 106644442 A CN106644442 A CN 106644442A CN 201611202184 A CN201611202184 A CN 201611202184A CN 106644442 A CN106644442 A CN 106644442A
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- torsion spring
- flap
- measuring force
- base
- bearing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0057—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes measuring forces due to spring-shaped elements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a torsion spring fixed angle force measuring device including a fixed part, a rotation part, and a connection part, wherein the fixed part includes a support seat and a fixed plate, the rotation part includes a rotating plate, the rotating plate includes a base arranged at one end for supporting the bottom of a torsion spring and having a center through hole, a relatively arc-shaped slide rod arranged at one side of the base, protruding out of the base, and inserting into an arc-shaped through groove, and an actuating end arranged at the other end of the rotating plate and coaxial with the base, the torsion spring is coaxially arranged between the base and the actuating end, the connection part includes a core shaft which is a rod body having a protruding round table at one end, the core shaft passes through the center step hole of the flat plate of the support seat, so that the core shaft can be sleeved by the torsion spring, and the end part of the core shaft passing end extends into the actuating end of the rotating plate. The force measuring device, by means of the simple and reliable assembling part, can realize the torsional force test and failure measurement of the torsion spring. The structure is simple and the versatility is strong.
Description
Technical field
The invention belongs to torsion spring test field, more particularly, to a kind of torsion spring angle device for measuring force is determined.
Background technology
Accurate torsion spring needs to carry out torsion-testing and carries out the test of related items, with to torsion spring after manufacture is completed
Can be detected or be tested.
For the torsional test of torsion spring and to torsion spring in the random working angle of setting and in the case of keeping some cycles
Contrast test (failure test) is general at present to pass through what is completed on torsion spring torque testing machine.Existing torsion spring torque testing machine knot
Structure is complicated, expensive, and it is often, for a kind of specific torsion spring manufacture, to lead to that various simple torsion spring torques determine device
It is poor with property, all it is not suitable for the 100% batch demand that need to be tested, also all cannot complete to pass through to protect in several windup-degrees of regulation
Hold the contrast test (failure test) of the moment of torsion in front and back after certain hour.
Patent document CN102175540A discloses a kind of torsion spring torque measurement apparatus, and it includes that supporting member, torsion spring are turned round
Turn end pieces and torsion spring fixing end part, wherein torsion spring reverses end pieces includes fixed plate, rotation angle disk, pivoted arm and dynamic clamping plate, turns
Angle disk and pivoted arm are used to determine torsion angle, move clamping plate and pivoted arm clamping torsion spring reverses end.Measurement apparatus in the technical scheme can
Torsion spring torque and dynamic impulsion moment of torsion under to realize the different torsion angles of measurement, but, the measurement apparatus complex structure, torsion spring peace
Dress inconvenience, needs to realize measurement to moment of torsion by the handle torque sensor that is rotatably assorted, and versatility is poor, it is impossible to adapt to
The large batch of measurement of each batch.
The content of the invention
For the disadvantages described above or Improvement requirement of prior art, the invention provides a kind of torsion spring determines angle device for measuring force,
It passes through the Structure Improvement Design for optimizing, and using simple and reliable build-up member the torsional test to torsion spring and failure are capable of achieving
Measurement, its simple structure, highly versatile.
For achieving the above object, it is proposed, according to the invention, a kind of torsion spring is provided and determines angle device for measuring force, it is characterised in that include
Standing part, rotating part and coupling part, wherein,
The standing part includes bearing and fixed plate, and bearing is tabular, is provided with and torsion spring rotation direction
The annular through groove matched somebody with somebody and the scale on arc groove side, for providing torsion spring rotation space and measurement torsion spring angle of rotation
Degree, the fixed plate is vertically set in abutment surface, for as the support stationary plane of one end；
The rotating part includes flap, the flap include being arranged at one end for supporting torsion spring bottom and with center
The base of through hole, be arranged at the base side and protrude base for inserting the arc-shaped slot in the cunning of opposing arcuate
Lever and be arranged at the flap other end it is coaxial with the base make moved end, the torsion spring be used to being coaxially disposed in base with
Make between moved end；
The coupling part includes mandrel, and it is the body of rod that one end end has protrusion round platform, and it is used for through described
Seat plate center stepped hole, so that the torsion spring can be sleeved on this thereon, the mandrel stretches into the flap through the end at end
Make moved end；
In this way, by driving the flap of the rotating part on the bearing flat board around central axis, can band
Dynamic torsion spring is around mandrel torsion, the angle rotated on bearing flat board by the measurement flap and positioned at the dynamometry made on moved end
The torque that measurement device is obtained, is capable of achieving the torgue measurement to torsion spring.
Used as present invention further optimization, the rotating part also includes nut, and it is matched with the sliding bar, can be used
In in place it being locked with bearing flat board afterwards in the rotation rotational angle, for as the failure of the torsion spring of fixed angle
Measurement.
As present invention further optimization, the rotating part as moved end be with periphery be in polygon-shaped, inwall
For the hollow cylinder of square opening, install for coordinating with outside acting device and/or device for measuring force.
It is described to be used to be matched with box spanner in polygonal periphery as present invention further optimization, so that set
Barrel spanner force is rotated partial turn.
As present invention further optimization, the inwall in the hole that is square be used to being connected with the torque spanner with dial plate and
Locking, to measure the moment of torsion for rotating torsion spring.
Used as present invention further optimization, the flap of the rotating part is located at described work between moved end and base
For tabular, and the side of its flat board corresponding with bearing scale is in sharp edge, for as the pointer with corresponding scale, to obtain
Obtain the rotational angle of flap.
Used as present invention further optimization, the bottom of the bearing of the standing part is provided with what is matched with clamping device
Interface.
Used as present invention further optimization, the fixed plate of the standing part has arc flange, for torsion spring end
Displacement when abutting to fixed plate diametrically.
Used as present invention further optimization, the coupling part also includes being socketed in the mandrel body of rod and torsion spring inner ring
Between bushing.
Used as present invention further optimization, the bushing selection is nonmetallic, to protect torsion spring not to be scratched.
In general, by the contemplated above technical scheme of the present invention compared with prior art, with following beneficial effect
Really：
1) torsion spring directly can be arranged on this device by measurement apparatus of the invention for the test and test of accurate torsion spring
On, the whole test of accurate torsion spring and test can be completed by single manual operations；
2) apparatus of the present invention can be by adjustment rotating part and with reference to it in standing part upper angle scale (i.e. operating angle
Degree) can read its corresponding actual torque with torque spanner, using locking nut by device under specified various angles
It is locked, after being kept for the time of regulation, you can the difference of the torsion before and after contrast, to judge failure conditions.
2) device of the invention is disposable clamping, and test number is accurate, and simple structure, easy to operate practicality.
Description of the drawings
Fig. 1 is the structural representation that angle device for measuring force is determined according to the torsion spring of one embodiment of the invention；
Fig. 2 is the structure decomposition figure that angle device for measuring force is determined according to the torsion spring of one embodiment of the invention；
Fig. 3 is the structural representation of the standing part that torsion spring determines angle device for measuring force in Fig. 2；
Fig. 4 is the structural representation of the rotating part that torsion spring determines angle device for measuring force in Fig. 2；
Fig. 5 is the structural representation of the coupling part that torsion spring determines angle device for measuring force in Fig. 2；
Fig. 6 is the overall assembling schematic diagram that angle device for measuring force is determined according to the torsion spring of one embodiment of the invention；
In all of the figs, identical reference be used for represent identical element or structure, wherein：1- bearings, 2- turn
Plate, 3- locking nuts, 4- mandrels, 5- bushings, 6- fixed plates, 7- torsion springs.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, and
It is not used in the restriction present invention.As long as additionally, technical characteristic involved in invention described below each embodiment
Not constituting conflict each other just can be mutually combined.
Fig. 1 is the structural representation that angle device for measuring force is determined according to the torsion spring of one embodiment of the invention.As shown in figure 1,
The measurement apparatus of the embodiment of the present invention include standing part, rotating part and coupling part.
As illustrated in fig. 1 and 2, standing part is positioned with coupling part by pin, and with mode connects for screw, rotating part is rotatable
Ground is connected with standing part.
As Figure 1-3, standing part is designed using split, including bearing 1 and fixed plate 6, be able to will be fixed by fixture
Grips.
As shown in figure 3, bearing 1 is tabular, the annular through groove and position matched with the rotation direction of torsion spring 7 is provided with
Scale on arc groove side, for providing the rotation space of torsion spring 7 and the measurement rotational angle of torsion spring 7.Fixed plate 6 vertically sets
Put in abutment surface, for as the support stationary plane of the one end of torsion spring 7.
As shown in figure 3, in one embodiment, bearing 1 is provided with square interface, for vice fastening；Its upper table
Face is provided with the dial consistent with the maximum functional angle of torsion spring 7, and its minimum scale for example (can judge that precision is, for example, for 1 °
0.5 °), for indicating the operating angle of torsion spring, if desired for precision is further improved, then whole mechanism includes the straight of bearing and pointer
Connect accordingly to increase into multiple.Annular through groove consistent with the maximum functional angle of torsion spring 7 is provided with bearing 1, for forming flap
Working trajectory, the center of circle of the groove with bearing requires that axiality for example can be within 0.02, size to groove and interior
Portion's surface roughness can preferably in more than Ra0.8.Pin-and-hole at screwed hole and such as two is set at such as 6 on bearing 1, for even
Mandrel and fixed plate are connect, wherein the perpendicularity of pin-and-hole is preferably within 0.02.Preferably, bearing can using integrative design and
Processing, and from the processing of such as martensite stainless steel material.
The dial that the surface of bearing 1 is provided with is consistent with torsion spring maximum functional corner, for indicating the reality of torsion spring during test
Angle；Cooperation by flap on bearing, makes the center of circle of tested torsion spring 7 concentric with whole test device；Can allow flap simultaneously
On pointer overlap with the dial zero-bit on bearing, last bearing 1 additionally provides consistent with torsion spring maximum functional angle same
The annular through groove at center, for flap accurate working trajectory is provided.
As shown in figure 3, fixed plate is preferably T-shaped, to prevent part itself stress deformation；It is provided with arc shelves
Side, for preventing the radial displacement of torsion spring 7, the diameter of its arc to be slightly larger than the diameter of torsion spring material；There is luminosity higher thereon
Big plane is the working face that contacts with the fixed edge of torsion spring 7 and prevents torsion spring from rotating, and needs the surface roughness for example can be at this
More than Ra0.8；Pin-and-hole at such as 2 is provided with, for coordinating with bearing, it is ensured that the perpendicularity of working face preferably 0.02 with
It is interior；Screwed hole at such as 2 is provided with, for being connected with bearing, fastening.The fixed plate preferably can select aluminum alloy materials and add
Work.
As Figure 1-4, rotating part include flap, the flap 2 include be arranged at one end for supporting torsion spring bottom
And the base with central through hole, be arranged at base side and protrude base for inserting arc-shaped slot in opposing arcuate
Sliding bar and be arranged at the flap other end it is coaxial with base make moved end.Torsion spring 7 be used for be coaxially disposed in base with make moved end
Between.
As shown in figure 4, flap 2 is irregularly shaped, preferably its upper outer is provided with outer-hexagonal shape, for spanner
Interface, part work is rotated to exert a force；Its top is internally provided with square hole, and with interior annular groove, for band
The torque spanner connection of dial plate and lock, the size of square hole should be consistent with the square shaft of torque spanner used and forms small―gap suture and match somebody with somebody
Close.Its top middle part is provided with two coaxial endoporus, and forming hinge is used to be connected with mandrel, and cooperation at this for example can be with
Using H7/g6.The sharp edge of little triangle is provided with the external margin of flap 2, used as the pointer of device, the side of the pointer is big
Plane need to be not less than 0.02 with working face preferred vertical degree described later；Its middle is provided with smooth plane, preferably at this
Surface roughness is needed in more than Ra0.8, for the working face contacted with the active edges of torsion spring 7 and torsion spring can be driven to rotate；Under flap 2
Side is provided with columned slide block (sliding bar), and whole rotating part can be allowed to put down along the respective annular groove on base
Surely, accurately rotate, the diameter of the slide block is consistent with the groove of above-mentioned bearing.Preferentially, flap 2 is using integrative design and adds
Work, to prevent same material binding effect, the part from processing from austenitic stainless steel material.
Preferably, rotating part can also include nut 3, and it is matched with sliding bar, can be used to be arrived in rotation rotational angle
It is locked with bearing flat board behind position, for measuring as the failure of the torsion spring 7 of fixed angle.By bearing 1 be connected
Part screws with box spanner or the force of the torque spanner with dial plate so that the correct position that torsion spring 7 can be in when testing is simultaneously
Can be needing to carry out determining angle failure analysis test along the desired rotation of working trajectory exactly, so as to be tested,
Also can use locking nut 3 to fasten torsion spring, allow it to rest on hold mode on the operating angle position of needs for a long time；Locking screw
Female 3 are preferably nut of the bottom with flange face；For when torsion spring wants operating angle in test, by the rotation with torsion spring 7
Transfer part point is locked on standing part；Below flange face need to adopt blasting treatment, and the work of torsion spring 7 is resisted with increasing friction force
Make torsion.Preferentially, locking nut is processed from A3 Steel materials.
As Figure 1-5, coupling part one fastens with standing part, and one is connected with rotating part, as shown in figure 5,
Coupling part includes mandrel, and mandrel is the body of rod that one end end has protrusion round platform, and it is used for through bearing plate center step
Hole, so that torsion spring 7 can be sleeved on this thereon, the mandrel ensure that torsion spring center through what flap was stretched into the end at end as moved end
It is concentric with measurement apparatus.
As shown in figure 5, mandrel is stepped cylindrical, top is that length is slightly larger than torsion spring height elongate cylinder, for installing lining
Set, bottom is that short and thick cylinder is used to form seam cooperation to ensure perpendicularity requirement with bearing, in the mandrel in reality processing
It is preferred that axiality is within 0.02, the seam of its underpart need to form interference fit with bearing corresponding site, and ensure after assembling
Perpendicularity is preferably within 0.02；It is outside below to be provided with multiple place's screw thread vias, for being connected with bearing, fastening.It is preferred that
Ground, mandrel can select 40Cr materials processings.
In the present embodiment, bushing be preferably two as circular cylinder, endoporus is used to being arranged on mandrel, it is outside with
The inner ring of torsion spring 7 is contacted, and its external diameter is consistent in internal diameter after maximum functional corner with torsion spring 7；Its selection is nonmetallic, to protect torsion
Spring 7 is not scratched.Bushing preferably can select polytetrafluoroethylmaterial material processing.
As shown in Fig. 2 before the measurement apparatus work of the embodiment of the present invention, mandrel to be first placed in the center of device, then will
The rotating part of torsion spring 7 according to circumstances can manually be exerted a force along the annular through groove of standing part with spanner or torque spanner, be rotated
Its rotating part, now scale shown in pointer be the operating angle of torsion spring, the torque value shown in torque spanner is the angle
Under torsion spring real work moment of torsion.
As shown in fig. 6, during work, first bushing 5 is inserted in into torsion spring inner ring, then torsion spring 7 is put into the pan of flap 2
Centre, then the pan of flap 2 is inserted in mandrel, synchronously completes being inserted in for the slide block of flap 2 and the groove of bearing 1,
Rotate flap 2 to be allowed to be close to fixed plate 6, while being close to one and flap with fixed plate plane by one of torsion spring
Plane contact, the now as initial zero degree of torsion spring 7, band upper locking nut need not be tightened, after completing the step.Again will be with table
In the square hole of the embedded flap of the square shaft of the torque spanner of disk, allow spanner the embedded flap of steel ball cannelure, with spanner or torque
Spanner rotates：As surveying when torsion-testing is tested using the torque spanner with gauge outfit, observe pointer reach regulation angle when,
Corresponding torque value is recorded, the different torque values obtained by the test of the different operating angle selected can calculate the torsion spring
Torque value.
As spanner is adopted during failure testing, observe pointer reach regulation angle when, then by locking nut screwing, then
It is put into rotating part with torque spanner, unclamps locking nut, record torque value this moment under the angle, places some cycles
Afterwards, locking nut is unclamped, records torque value this moment under the angle, the data analysis contrasted before and after work completes to be lost under the angle
Effect test.
In the apparatus of the present, the cooperation except 4 parts such as mandrel, bearing, fixed plate and flap and position point
Size, form and position tolerance, surface roughness required precision it is higher；The precision and size of remainder is disposed as free public affairs
Difference, you can satisfaction is used, low cost, processing technology and good economy performance.
It should be noted last that, above specific embodiment only to illustrate technical scheme and unrestricted,
Although being described in detail to the present invention with reference to preferred embodiment, it will be understood by those within the art that, can be right
Technical scheme is modified or equivalent, and without deviating from the spirit and scope of technical solution of the present invention, its is equal
Should cover in the middle of scope of the presently claimed invention.
Claims (10)
1. a kind of torsion spring determines angle device for measuring force, it is characterised in that including standing part, rotating part and coupling part, its
In,
The standing part includes bearing and fixed plate, and the bearing is tabular, is provided with and torsion spring rotation direction
The annular through groove matched somebody with somebody and the scale on arc groove side, for providing torsion spring rotation space and measurement torsion spring angle of rotation
Degree, the fixed plate is vertically set in abutment surface, for as the support stationary plane of one end；
The rotating part includes flap, the flap include being arranged at one end for supporting torsion spring bottom and with central through hole
Base, be arranged at the base side and protrude base for inserting the arc-shaped slot in the slip of opposing arcuate
Bar and be arranged at the flap other end and it is coaxial with the base make moved end, the torsion spring be used to being coaxially disposed in base with
Make between moved end；
The coupling part includes mandrel, and the mandrel is the body of rod that one end end has protrusion round platform, and it is used for through described
Seat plate center stepped hole, so that the torsion spring can be sleeved on the mandrel, the mandrel stretches into described turning through the end at end
Plate makees moved end；
In this way, by driving the flap of the rotating part on the bearing flat board around central axis, torsion can be driven
Spring is around mandrel torsion, the angle rotated on bearing flat board by the measurement flap and positioned at the device for measuring force made on moved end
The torque that measurement is obtained, is capable of achieving the torgue measurement to torsion spring.
2. a kind of torsion spring according to claim 1 determines angle device for measuring force, wherein, the rotating part also includes nut,
It is matched with the sliding bar, can be used in place it is locked with bearing flat board afterwards in the rotation rotational angle, with
In the torsion spring failure measurement as fixed angle.
3. a kind of torsion spring according to claim 1 and 2 determines angle device for measuring force, wherein, the rotating part makees moved end
It is in the hollow cylinder that polygon-shaped, inwall is square opening, for filling with outside acting device and/or dynamometry with periphery
Put cooperation to install.
4. a kind of torsion spring according to claim 3 determines angle device for measuring force, wherein, it is described in polygonal periphery be used for
Box spanner is matched, so that box spanner force is rotated partial turn.
5. a kind of torsion spring according to claim 3 or 4 determines angle device for measuring force, wherein, the inwall in the hole that is square is used
In being connected and locking with the torque spanner with dial plate, to measure the moment of torsion for rotating torsion spring.
6. a kind of torsion spring according to any one of claim 1 to 5 determines angle device for measuring force, wherein, the rotating part
Flap be located at it is described make between moved end and base as tabular, and the side of flat board corresponding with bearing scale is in sharp edge,
For as pointer corresponding with scale, to obtain the rotational angle of flap.
7. a kind of torsion spring according to any one of claim 1 to 6 determines angle device for measuring force, wherein, the standing part
The bottom of bearing be provided with the interface matched with clamping device.
8. a kind of torsion spring according to any one of claim 1 to 7 determines angle device for measuring force, wherein, the standing part
Fixed plate there is arc flange, its displacement diametrically is limited when abutting to fixed plate for torsion spring end.
9. a kind of torsion spring according to any one of claim 1 to 8 determines angle device for measuring force, wherein, the coupling part
Also include the bushing being socketed between the mandrel body of rod and torsion spring inner ring.
10. a kind of torsion spring according to claim 9 determines angle device for measuring force, wherein, the lagging material for nonmetallic, with
Torsion spring is protected not to be scratched.
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| CN201611202184.5A CN106644442B (en) | 2016-12-23 | 2016-12-23 | A kind of torsional spring determines angle device for measuring force |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611202184.5A CN106644442B (en) | 2016-12-23 | 2016-12-23 | A kind of torsional spring determines angle device for measuring force |
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| CN106644442A true CN106644442A (en) | 2017-05-10 |
| CN106644442B CN106644442B (en) | 2019-06-18 |
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Cited By (10)
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| CN107655767A (en) * | 2017-11-25 | 2018-02-02 | 山西江淮重工有限责任公司 | It can be achieved to carry out self-positioning multi-angle load up ageing experimental rig to multiple torsion springs |
| CN107764540A (en) * | 2017-11-24 | 2018-03-06 | 航天科工哈尔滨风华有限公司 | A kind of torsion bar spring residual deformation angle test device |
| CN108168751A (en) * | 2017-12-01 | 2018-06-15 | 中国直升机设计研究所 | A kind of torsional spring twist counter |
| CN108453643A (en) * | 2018-03-04 | 2018-08-28 | 姚森 | A kind of pre-determined bit Self adapting fixture |
| CN109632163A (en) * | 2018-12-17 | 2019-04-16 | 中国航发动力股份有限公司 | A kind of spherical device for squeezing closing in face compactness of measurement |
| CN111720416A (en) * | 2020-05-29 | 2020-09-29 | 江苏永昊高强度螺栓有限公司 | Combined nut assembly |
| CN111964823A (en) * | 2020-08-12 | 2020-11-20 | 内蒙古第一机械集团股份有限公司 | Torsion detection device for torsion spring and simulated working condition detection method thereof |
| CN113176027A (en) * | 2021-03-26 | 2021-07-27 | 上海卫星工程研究所 | Spring tube torque measuring device and test method thereof |
| CN114346966A (en) * | 2021-12-30 | 2022-04-15 | 北京动力机械研究所 | Torsional spring installation tool for assembling empennage |
| CN116735057A (en) * | 2023-06-13 | 2023-09-12 | 东实沿浦(十堰)科技有限公司 | Torsional spring is with examining utensil frock |
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|---|---|---|---|---|
| CN107764540B (en) * | 2017-11-24 | 2024-01-23 | 航天科工哈尔滨风华有限公司 | Torsion bar spring residual deformation angle testing device |
| CN107764540A (en) * | 2017-11-24 | 2018-03-06 | 航天科工哈尔滨风华有限公司 | A kind of torsion bar spring residual deformation angle test device |
| CN107655767A (en) * | 2017-11-25 | 2018-02-02 | 山西江淮重工有限责任公司 | It can be achieved to carry out self-positioning multi-angle load up ageing experimental rig to multiple torsion springs |
| CN107655767B (en) * | 2017-11-25 | 2024-03-15 | 山西江淮重工有限责任公司 | Can realize carrying out self-align multi-angle loading ageing test device to a plurality of torsional springs |
| CN108168751A (en) * | 2017-12-01 | 2018-06-15 | 中国直升机设计研究所 | A kind of torsional spring twist counter |
| CN108168751B (en) * | 2017-12-01 | 2020-10-23 | 中国直升机设计研究所 | Torsional spring torque measurer |
| CN108453643A (en) * | 2018-03-04 | 2018-08-28 | 姚森 | A kind of pre-determined bit Self adapting fixture |
| CN108453643B (en) * | 2018-03-04 | 2019-11-26 | 连江县维佳工业设计有限公司 | A kind of pre-determined bit Self adapting fixture |
| CN109632163A (en) * | 2018-12-17 | 2019-04-16 | 中国航发动力股份有限公司 | A kind of spherical device for squeezing closing in face compactness of measurement |
| CN111720416A (en) * | 2020-05-29 | 2020-09-29 | 江苏永昊高强度螺栓有限公司 | Combined nut assembly |
| CN111964823A (en) * | 2020-08-12 | 2020-11-20 | 内蒙古第一机械集团股份有限公司 | Torsion detection device for torsion spring and simulated working condition detection method thereof |
| CN111964823B (en) * | 2020-08-12 | 2022-05-13 | 内蒙古第一机械集团股份有限公司 | Torsion detection device for torsion spring and simulated working condition detection method thereof |
| CN113176027B (en) * | 2021-03-26 | 2022-06-24 | 上海卫星工程研究所 | Spring tube torque measuring device and test method thereof |
| CN113176027A (en) * | 2021-03-26 | 2021-07-27 | 上海卫星工程研究所 | Spring tube torque measuring device and test method thereof |
| CN114346966A (en) * | 2021-12-30 | 2022-04-15 | 北京动力机械研究所 | Torsional spring installation tool for assembling empennage |
| CN114346966B (en) * | 2021-12-30 | 2024-04-02 | 北京动力机械研究所 | Torsional spring installation tool for assembly tail wing |
| CN116735057A (en) * | 2023-06-13 | 2023-09-12 | 东实沿浦(十堰)科技有限公司 | Torsional spring is with examining utensil frock |
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