CN112067478A - Be applied to diversified fatigue testing machine of torsional spring - Google Patents
Be applied to diversified fatigue testing machine of torsional spring Download PDFInfo
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- CN112067478A CN112067478A CN202010960619.2A CN202010960619A CN112067478A CN 112067478 A CN112067478 A CN 112067478A CN 202010960619 A CN202010960619 A CN 202010960619A CN 112067478 A CN112067478 A CN 112067478A
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- testing machine
- torsional spring
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- 238000009661 fatigue test Methods 0.000 title claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 230000033001 locomotion Effects 0.000 claims description 6
- 230000006978 adaptation Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 description 7
- 230000001174 ascending effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/36—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by pneumatic or hydraulic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0044—Pneumatic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0288—Springs
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a multi-azimuth fatigue testing machine applied to a torsional spring, which comprises the torsional spring, a torsional spring clamp, a transmission mechanism and a pressure head, wherein the torsional spring clamp is arranged on a rack and comprises a rotary table, a pressure plate and a plurality of sleeve rods, the rotary table, the pressure plate and the sleeve rods are driven by a motor to rotate, the sleeve rods are arranged around the center of the rotary table in an equiangular manner, each sleeve rod can be sleeved with one torsional spring, and the pressure plate is movably connected to the rotary table through a limiting rod. According to the multi-azimuth fatigue testing machine applied to the torsion spring, the fixation of the torsion spring can be quickly realized only by changing the electrification of the electromagnet, the bent edge of the torsion spring can be completely fixed by adjusting the current value, the multi-azimuth fatigue testing machine is more convenient to match and fix compared with the traditional threaded bolt, the fixation effect is better, and meanwhile, the angle of the transmission mechanism is finely adjusted, so that the pressing head can be driven to be in contact with different positions of the bent edge of the torsion spring and load can be transmitted, and the mechanical properties such as tensile strength, elastic modulus, elongation, fatigue property and the like can be measured in multiple directions.
Description
Technical Field
The invention relates to the technical field of mechanical testing equipment, in particular to a multi-azimuth fatigue testing machine applied to a torsion spring.
Background
At present, the torsion spring is widely applied in various fields, and the failure of the torsion spring is generally fatigue failure, so the fatigue test of the torsion spring is more important. The torsion spring multi-azimuth fatigue testing machine in the prior art is not complex in structure, more in parts, not easy to assemble and high in preparation cost; the structure is single, manual operation of workers is needed, the stability in the test is poor, and the difference between the obtained data and the data in actual use is large; and the multi-azimuth fatigue testing machine for the torsion spring in the prior art can only carry out the fatigue test on one torsion spring at a time, so the testing efficiency is lower. Secondly, the fixing problem of the torsion spring easily influences the accurate value of the fatigue test, and particularly, the torsion spring at the matched position with the sleeve rod sleeve has certain size difference, so that slight looseness exists during the test, and the test efficiency is further influenced.
In order to solve the problems, the scheme is developed accordingly.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a multi-azimuth fatigue testing machine applied to a torsion spring, and solves the problems in the background technology.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a multi-azimuth fatigue testing machine applied to a torsional spring comprises the torsional spring, a torsional spring clamp, a transmission mechanism and a pressure head, wherein the torsional spring clamp is arranged on a rack and comprises a rotary disc, a pressing plate and loop bars, the rotary disc, the pressing plate and the loop bars are driven by a motor to rotate, the loop bars are arranged at equal angles in the circumferential direction of the center of the rotary disc, one torsional spring can be sleeved on each loop bar, the pressing plate is movably connected onto the rotary disc through a limiting rod, the pressing plate is disc-shaped, a pressing block is arranged in the circumferential direction of the outer edge of the pressing plate and is close to the loop bars, a permanent magnet is arranged on one side, close to the rotary disc, of the pressing block, an electromagnet is arranged on one side, corresponding to the rotary disc, the rotary disc and the pressing block can attract each other in a power-on state, the transmission mechanism comprises an upper connecting pipe, a lower connecting pipe, one side of the upper connecting pipe and one side of the lower connecting pipe are respectively connected with the upper end and the lower end of the fine adjustment component, the outer wall of the joint position of the upper connecting pipe and the lower connecting pipe is wrapped by a rubber ring, and a transverse groove matched with the size of the torsion spring is formed in the pressure head.
Preferably, the limiting rod is a plurality of clamping rods, the inner end of the limiting rod is connected with the rotary table, the outer end of the limiting rod is connected with a clamping head, a plurality of through holes matched with the clamping rods in size are formed in the pressing plate and are in one-to-one correspondence with the clamping rods in position, and the limiting rod can move in the horizontal direction relative to the rotary table.
Preferably, the radius length of the pressing plate is smaller than the distance from the center of the turntable to the inner side end of the loop bar, and the outer edge of the pressing block is located on the outer side of the turntable or flush with the outer edge of the turntable.
Preferably, the transmission mechanism further comprises fixing rods, the fixing rods are respectively horizontally embedded in the upper connecting pipe and the lower connecting pipe, a spring is arranged between the fixing rods, and the upper portion and the lower portion of the spring are respectively located in the upper connecting pipe and the lower connecting pipe.
Preferably, the fine setting component is including the regulation seat that link up from top to bottom, all is the branch and the lifter of L shape, the lifter is located the below of branch, the one end of branch and the lateral wall fixed connection of head rod, lower extreme and the swing joint who adjusts the seat, the one end of lifter is articulated mutually with the lateral wall of head rod down, upper end and regulation seat swing joint, the thread groove has been seted up to the downside of adjusting the seat, the upper end of lifter be equipped with the external screw thread of thread groove looks adaptation, be equipped with the annular piece on the upside inner wall of regulation seat, the lower tip of branch offer with the ring channel of annular piece looks adaptation, can change the interval of branch and lifter through rotating the regulation seat, and then finely tune the head rod and the position of head rod down.
Preferably, the transmission mechanism and the pressure head are both provided with a plurality of pressure heads and are arranged along the circumferential direction of the rotary table, wherein the pressure heads are arranged towards the radial direction of the rotary table.
(III) advantageous effects
After adopting the technical scheme, compared with the prior art, the invention has the following advantages: the multidirectional fatigue testing machine applied to the torsion spring is provided with the torsion spring clamps, the fixation of the torsion spring can be quickly realized only by changing the electrification of the electromagnet, the bent edge of the torsion spring can be completely fixed by adjusting the current value, the multidirectional fatigue testing machine is more convenient to match and fix compared with the traditional threaded bolt, the fixation effect is better, and meanwhile, the angle of the transmission mechanism and the stroke of reciprocating motion can be finely adjusted to drive the pressure head to be in contact with different positions of the bent edge of the torsion spring and transfer load, so that the mechanical properties such as tensile strength, elastic modulus, elongation and fatigue property can be measured in a multidirectional mode.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a disassembled view of the structure of the torsion spring clamp according to the present invention;
FIG. 3 is a side view of the platen structure of the present invention;
FIG. 4 is a schematic view of the transmission mechanism of the present invention;
FIG. 5 is a disassembled view of the transmission mechanism of the present invention;
FIG. 6 is an enlarged view of a portion of the structure of FIG. 5;
FIG. 7 is a side view of the present invention showing the drive mechanism disassembled;
FIG. 8 is a schematic view of the present invention in use; .
In the figure: 1 torsion spring clamp, 01 turntable, 02 pressing plate, 03 loop bar, 2 transmission mechanism, 21 upper connecting pipe, 22 lower connecting pipe, 23 fine adjustment component, 231 adjusting seat, 232 supporting rod, 233 lifting rod, 24 fixing rod, 25 spring, 3 pressing head, 4 motor, 5 pressing block, 6 permanent magnet, 7 electromagnet, 8 rubber ring, 9 transverse groove, 10 limiting rod, 101 clamping rod, 102 clamping head, 11 through hole, 12 thread groove, 13 ring block, 14 ring groove and 15 torsion spring.
Detailed Description
The invention is explained in more detail below with reference to the figures and examples.
As shown in fig. 1-8: the utility model provides a be applied to diversified fatigue testing machine of torsional spring, including the torsional spring, locate torsional spring anchor clamps 1 in the frame, drive mechanism 2, the pressure head 3, torsional spring anchor clamps 1 includes through motor 4 drive pivoted carousel 01, the clamp plate 02, the loop bar 03 is equipped with a plurality ofly, and revolute the angular layout such as carousel 01 center circumference, can overlap on every loop bar 03 and establish a torsional spring 15, the clamp plate 02 passes through gag lever post 10 swing joint on carousel 01, the clamp plate 02 is discoid, clamp plate 02 outer fringe circumference is equipped with briquetting 5, 5 adjacent loop bars 03 of briquetting, and the quantity with loop bar 03 is the same.
Referring to fig. 2-3, a permanent magnet 6 is disposed on one side of the pressing block 5 close to the turntable 01, an electromagnet 7 (preferably embedded in the turntable 01) is disposed on the corresponding side of the turntable 01, and the turntable 01 and the pressing block 5 can attract each other in the power-on state. When the power is not supplied, the locking state is changed into a sliding state, the pressing plate 02 can move away from one side relative to the rotating disc 01, and the position of the torsion spring 15 can be adjusted and the torsion spring 15 can be placed on the loop bar 03. Whether this scheme only needs the circular telegram that changes electro-magnet 7 or not, can realize torsional spring 15's fixed fast, and the adjustment current value can be fixed completely with the crimp of torsional spring, and it is more convenient to compare in traditional screw bolt cooperation fixed, and fixed effect is better.
Referring to fig. 8, a plurality of transmission mechanisms 2 can be arranged on the rack, a plurality of torsion springs can be tested at the same time, and the rest torsion springs can be tested again (suitable for the test condition of large-batch torsion springs) through the rotation of the turntable 01.
In the test, a stress sensor is attached to the pressure head 3 and needs to be connected with computer equipment through a transmission line.
It should be noted that, drive mechanism 2 in this scheme links to each other with the frame (the frame is not illustrated in the figure), and accessible cylinder drive mechanism 2 reciprocating motion (other lifters all can, as long as can drive member at 01 radial direction reciprocating motion of carousel), and then drive pressure head 3 reciprocal carry out fatigue test's purpose to the hem of torsional spring 15.
Furthermore, the angle of the transmission mechanism 2 and the stroke of the reciprocating motion are finely adjusted, so that the pressure head 3 is driven to be in contact with different positions of the edge folding of the outer side end of the torsion spring 15 and load is transferred, and the mechanical properties such as tensile strength, elastic modulus, elongation and fatigue property of the torsion spring are measured in multiple directions.
The transmission mechanism 2 comprises an upper connecting pipe 21, a lower connecting pipe 22 and a fine adjustment component 23, the upper end of the upper connecting pipe 21 is connected with the driving end and can move up and down in a reciprocating mode, the lower end of the lower connecting pipe 22 is fixedly connected with the pressure head 3, one side of the upper connecting pipe 21 and one side of the lower connecting pipe 22 are connected with the upper end and the lower end of the fine adjustment component 23 respectively, the outer wall of the joint position of the upper connecting pipe 21 and the lower connecting pipe 22 is wrapped by a rubber ring 8, and the pressure head 3 is provided with a transverse groove 9 matched with.
The limiting rod 10 is a plurality of clamping rods 101, the inner side end of the limiting rod is connected with the rotary table 01, the outer side end of the limiting rod is connected with a clamping head 102, a plurality of through holes 11 matched with the clamping rods 101 in size are formed in the pressing plate 02, the through holes correspond to the clamping rods 101 in position one to one, and the limiting rod can move in the horizontal direction relative to the rotary table 01.
The radius length of the pressing plate 02 is smaller than the distance from the center of the turntable 01 to the inner side end of the loop bar 03, and the outer edge of the pressing block 5 is positioned on the outer side of the turntable 01 or is flush with the outer edge of the turntable 01.
The transmission mechanism 2 further comprises fixing rods 24, the fixing rods 24 are horizontally embedded in the upper connecting pipe 21 and the lower connecting pipe 22 respectively, a spring 25 is arranged between the two fixing rods 24, and the upper portion and the lower portion of the spring 25 are located in the upper connecting pipe 21 and the lower connecting pipe 22 respectively.
The fine-tuning component 23 comprises an adjusting seat 231 which is through up and down, a supporting rod 232 and a lifting rod 233 which are in an L shape, the lifting rod 233 is located below the supporting rod 232, one end of the supporting rod 232 is fixedly connected with the side wall of an upper connecting rod, the lower end of the supporting rod is movably connected with the adjusting seat 231, one end of the lifting rod 233 is hinged with the side wall of a lower connecting rod, the upper end of the lifting rod is movably connected with the adjusting seat 231, a thread groove 12 is formed in the lower side of the adjusting seat 231, an external thread matched with the thread groove 12 is formed in the upper end of the lifting rod 233, an annular block 13 is arranged on the inner wall of the upper side of the adjusting seat 231, an annular groove 14 matched with the annular block 13 is formed in the lower end of the supporting rod 232, the distance between the supporting rod 232 and.
The transmission mechanism 2 and the pressure head 3 are both provided with a plurality of parts and are arranged along the circumferential direction of the rotary table 01, wherein the pressure head 3 is arranged towards the radial direction of the rotary table 01.
Through rotating the regulation seat 231 in this scheme to change lifter 233 in the ascending position of vertical direction, because the upper end of dead lever 24 is restricted at horizontal position, therefore only can move in vertical direction, make can drive the lower connecting pipe 22 articulated with it and rotate the slope in the horizontal direction when going up and down, thereby indirect adjustment pressure head 3's application of force angle.
Secondly, the variation of the stroke of the reciprocating movement of the fine adjustment transmission mechanism 2 refers to the fine adjustment of the distance between the upper connecting pipe 21 and the lower connecting pipe 22 so as to adjust the loading amplitude and more accurately read the vertical direction. The realization of this function needs the mirror image to set up fine setting component 23 at last takeover 21 and lower takeover 22 opposite side, adjusts seat 231 and realizes the interval fine setting through synchronous rotation, also can realize through setting up the difference that turns to of two regulation seats 231 when adjusting the pressure head 3 angle.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and the protection scope must be determined by the scope of the claims.
Claims (6)
1. The utility model provides a be applied to diversified fatigue testing machine of torsional spring, includes the torsional spring, locates torsional spring anchor clamps, drive mechanism, the pressure head in the frame, its characterized in that: the torsion spring clamp comprises a rotary table, a pressing plate and loop bars which are driven to rotate by a motor, the loop bars are provided with a plurality of loop bars and are arranged at equal angles around the center circumference of the rotary table, each loop bar can be sleeved with a torsion spring, the pressing plate is movably connected onto the rotary table through a limiting rod, the pressing plate is disc-shaped, pressing blocks are circumferentially arranged at the outer edges of the pressing plates and are close to the loop bars and are as same as the loop bars in number, a permanent magnet is arranged on one side of each pressing block close to the rotary table, an electromagnet is arranged on one side corresponding to the rotary table, the rotary table and the pressing blocks can attract each other in a power-on state, a transmission mechanism comprises an upper connecting pipe, a lower connecting pipe and a fine adjustment component, the upper end of the upper connecting pipe is connected with a driving end to realize vertical reciprocating motion, the lower end of the lower connecting pipe is fixedly connected with a pressing head, one side of the upper, and the pressure head is provided with a transverse groove matched with the torsional spring in size.
2. The multi-azimuth fatigue testing machine applied to the torsion spring, according to claim 1, is characterized in that: the limiting rod is a plurality of clamping rods, the inner end of the limiting rod is connected with the rotary table, the outer end of the limiting rod is connected with a clamping head, a plurality of through holes matched with the clamping rods in size are formed in the pressing plate, the through holes correspond to the clamping rods in position one to one, and the limiting rod can move in the horizontal direction relative to the rotary table.
3. The multi-azimuth fatigue testing machine applied to the torsion spring, according to claim 1, is characterized in that: the radius length of the pressing plate is smaller than the distance from the center of the turntable to the inner side end of the loop bar, and the outer edge of the pressing block is positioned on the outer side of the turntable or is flush with the outer edge of the turntable.
4. The multi-azimuth fatigue testing machine applied to the torsion spring, according to claim 1, is characterized in that: the transmission mechanism further comprises fixing rods, the fixing rods are horizontally embedded in the upper connecting pipe and the lower connecting pipe respectively, springs are arranged between the fixing rods, and the upper portions and the lower portions of the springs are located in the upper connecting pipe and the lower connecting pipe respectively.
5. The multi-azimuth fatigue testing machine applied to the torsion spring, according to claim 4, is characterized in that: the fine setting component is including the regulation seat that link up from top to bottom, all is branch and the lifter of L shape, the lifter is located the below of branch, the one end of branch and the lateral wall fixed connection of head rod, lower extreme and the swing joint who adjusts the seat, the one end of lifter is articulated mutually with the lateral wall of head rod down, upper end and regulation seat swing joint, the thread groove has been seted up to the downside of adjusting the seat, and the upper end of lifter is equipped with the external screw thread with thread groove looks adaptation, be equipped with the annular piece on the upside inner wall of regulation seat, the lower tip of branch set up with the ring channel of annular piece looks adaptation, adjust the interval that the seat can change branch and lifter through rotating, and then the fine setting head rod and the position of head rod down.
6. The multi-azimuth fatigue testing machine applied to the torsion spring, according to claim 1, is characterized in that: the transmission mechanism and the pressure head are both provided with a plurality of pressure heads and are arranged along the circumferential direction of the rotary table, wherein the pressure heads are arranged towards the radial direction of the rotary table.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010960619.2A CN112067478B (en) | 2020-09-14 | 2020-09-14 | Be applied to diversified fatigue testing machine of torsional spring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010960619.2A CN112067478B (en) | 2020-09-14 | 2020-09-14 | Be applied to diversified fatigue testing machine of torsional spring |
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| CN112067478A true CN112067478A (en) | 2020-12-11 |
| CN112067478B CN112067478B (en) | 2022-10-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029543A (en) * | 2021-03-17 | 2021-06-25 | 黄石斯普机电有限公司 | Torsional spring fatigue test device with multiple acceleration |
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| CN113029543A (en) * | 2021-03-17 | 2021-06-25 | 黄石斯普机电有限公司 | Torsional spring fatigue test device with multiple acceleration |
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| CN112067478B (en) | 2022-10-04 |
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