CN107806987A - A kind of spring test device - Google Patents
A kind of spring test device Download PDFInfo
- Publication number
- CN107806987A CN107806987A CN201710915265.8A CN201710915265A CN107806987A CN 107806987 A CN107806987 A CN 107806987A CN 201710915265 A CN201710915265 A CN 201710915265A CN 107806987 A CN107806987 A CN 107806987A
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- spring
- rod
- push
- test device
- rotating disk
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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
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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
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0075—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by means of external apparatus, e.g. test benches or portable test systems
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of spring test device, including drive module, hydraulic circuit module and loading stress module, the drive module is connected by connecting rod with the hydraulic circuit module, and the hydraulic circuit module is connected by stretch rod with the loading stress module.The present invention is by under the driving of drive module, driving hydraulic circuit module, spring is realized the purpose of spring-mass and life test in the presence of stress module is loaded.
Description
Technical field
The present invention relates to spring technical field of measurement and test, more particularly to a kind of spring test device.
Background technology
Spring as it is a kind of using elasticity come the machine components of work, it is before use, it is necessary to logical after producing
Crossing strict test can just come into operation.Because spring majority is used in machinery, the critical piece of vehicles, if dress
Spring onboard is without the strict test of process, but covariant is mounted in vehicles, certainly will if performance is not reaching to requirement
Very serious consequence can be caused.And it is used for the spring of shock-absorbing, and because the decline of its performance so that vehicle disequilibrium, easily
Generation traffic accident.
With the development of modern industry, various springs play more and more important effect in every field.And
The quality of wherein spring-mass greatly affected work, the total quality of agricultural production equipment again, so as to have impact on the warp of society
Ji development.
Therefore, it is necessary that the quality to spring and life-span carry out test simultaneously.
The content of the invention
For technical problem present in prior art, the purpose of the present invention is：A kind of spring test device is provided, can
The fatigue life of accurate test spring.
The purpose of the present invention is achieved through the following technical solutions：A kind of spring test device, including drive module, hydraulic pressure return
Road module and loading stress module, the drive module are connected by connecting rod with the hydraulic circuit module, and the hydraulic pressure returns
Road module is connected by stretch rod with the loading stress module；
The drive module includes rotating disk, push rod, fixed rack and contiguous block, the upper end of the push rod and the rotating disk phase
Even, the lower end of the push rod is connected with the fixed rack, and the bottom of the push rod is connected with the contiguous block；
The hydraulic circuit module includes compression blocks, oil cylinder and hydraulic cylinder, one end of the connecting rod and the contiguous block
It is connected, the other end of the connecting rod is connected by expansion link with the compression blocks, and the compression blocks are located at the interior of the oil cylinder
Portion, the bottom of the oil cylinder are provided with control valve, and when the compression blocks move, the Medium Oil in the oil cylinder passes through the control
The corresponding valve port of valve flows in or out the hydraulic cylinder；
The loading stress module includes spring assembly, base and oil returning tube, and the spring assembly passes through the stretching
Bar is connected with the hydraulic cylinder, and the base is located at the lower section of the spring assembly, and the hydraulic cylinder passes through the oil returning tube
It is connected with the oil cylinder.
Preferably, the push rod includes upper push-rod and lower push-rod, and the upper push-rod is hinged with the lower push-rod, described above to push away
Bar is fixed on the rotating disk by fastener, and the lower push-rod is detachably connected with the fixed rack.
Preferably, it is equipped with positioning hole on the lower push-rod and the expansion link；
The centre of the fixed rack is provided with the through hole being engaged with the positioning hole on the lower push-rod；
The expansion link includes interior bar and the outer bar being sheathed on outside the interior bar, and the interior bar is Filled Rectangle, described
Outer bar is hollow rectangle, and the positioning hole is equidistantly arranged in the interior bar and the outer bar, and symmetrically.
Preferably, the spring assembly includes spring clip, spring and spring pressure head, and the spring pressure head is located at the connection
The bottom of block, and the both sides of the spring pressure head are provided with the retraction hole being engaged with the spring clip.
Preferably, the rotating disk is cylindrical, and the surface of the rotating disk is provided with chute, and the upper push-rod passes through fastener
It is connected with the chute.
Preferably, the top of the contiguous block is provided with the groove being engaged with the push rod bottom, the both sides of the groove
Provided with retainer ring.
Preferably, the base is provided with spring locating clip and slideway, and the spring locating clip moves along the slideway；
The quantity of the slideway is four, and is in cross-shaped arrangement.
Preferably, the inside of the hydraulic cylinder is provided with mobile sliding block, and the both ends of the mobile sliding block and the hydraulic cylinder lead to
Elastic component is crossed to be connected.
Preferably, the bottom both ends of the hydraulic cylinder are respectively equipped with spill port.
Preferably, triangular shape among the upper surface of the fixed rack.
The present invention is had the following advantages relative to prior art and effect：
1st, spring test device provided by the invention, including drive module, hydraulic circuit module and loading stress module, institute
State drive module to be connected with the hydraulic circuit module by connecting rod, the hydraulic circuit module is added by stretch rod with described
The connection of stress module is carried, under the driving of drive module, drives hydraulic circuit module, makes effect of the spring in loading stress module
Under, actual condition can be simulated spring is axially loaded, test power and the life-span of its rigidity.
2nd, spring test device provided by the invention, push rod include upper push-rod and lower push-rod, the upper push-rod with it is described under
Push rod is hinged, and the upper push-rod is fixed on the rotating disk by fastener, and the lower push-rod and the fixed rack are detachable
Connection, stretching and the two kinds of fatigue lives of compression of spring can be tested simultaneously.
Brief description of the drawings
Fig. 1 is the front view of spring test device of the embodiment of the present invention；
The structural representation of lower push-rod in Fig. 2 spring test devices of the embodiment of the present invention；
Fig. 3 is the structural representation of spring test device turntable of the embodiment of the present invention；
Fig. 4 is the structural representation of spring clip in spring test device of the embodiment of the present invention；
Fig. 5 is the structural representation of spring pressure head in spring test device of the embodiment of the present invention；
Fig. 6 is the structural representation of spring test device center base of the embodiment of the present invention.
Wherein, in the embodiment of the present invention：1st, rotating disk；2nd, push rod；21st, upper push-rod；22nd, lower push-rod；3rd, fixed rack；4th, even
Connect block；5th, compression blocks；6th, oil cylinder；7th, hydraulic cylinder；8th, expansion link；9th, spring assembly；91st, spring clip；92nd, spring；93rd, spring pressure
Head；10th, base；11st, oil returning tube；12nd, connecting rod；13rd, stretch rod；14th, positioning hole；15th, chute；16th, spring locating clip；
17th, slideway；18th, mobile sliding block；19th, retainer ring；20th, control valve.
Embodiment
With reference to embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are unlimited
In this.
Embodiment one：
As shown in figure 1, a kind of spring test device of the preferred embodiment of the present invention, including drive module, hydraulic circuit mould
Block and loading stress module, drive module are connected by connecting rod 12 with hydraulic circuit module, and hydraulic circuit module passes through stretching
Bar 13 is connected with loading stress module.Spring test device of the present invention, under the driving of drive module, band hydrodynamic pressure returns
Road module, spring is set to simulate actual condition in the presence of stress module is loaded and axially be loaded to spring, test it
The power of rigidity and life-span.
Specifically, drive module includes rotating disk 1, push rod 2, fixed rack 3 and contiguous block 4, upper end and the rotating disk 1 of push rod 2
It is connected, the lower end of push rod 2 is connected with fixed rack 3, and the bottom of push rod 2 is connected with contiguous block 4.
As shown in Fig. 2 push rod 2 includes upper push-rod 21 and lower push-rod 22, upper push-rod 21 is be hinged with lower push-rod 22, upper push-rod 21
Fixed on the turntable 1 by fastener, lower push-rod 22 is detachably connected with fixed rack 3.In addition, lower push-rod 22 is provided with positioning
Hole 14, the centre of fixed rack 3 are provided with the through hole being engaged with the positioning hole 14 on lower push-rod 22.In the present embodiment, above push away
Bar 21 is fixed on the turntable 1 by steady pin, and lower push-rod 22 has the function of adjusting this body length, can be by changing lower push-rod
The position of positioning hole 14 on 22, thus it is possible to vary its length.
As shown in figure 3, rotating disk 1 is in thin cylindric, and the surface of rotating disk 1 is provided with symmetrical chute 15, and chute 15 is most
Centre is connected by steady pin with upper push-rod 21, by the position for changing steady pin, thus it is possible to vary push rod 2 and rotating disk 1 are consolidated
Positioning is put.When rotating disk 1 is started working, stroke and track that push rod 2 moves up and down can change with the change of fixing point.
In addition, the top of contiguous block 4 is provided with the groove being engaged with the bottom of push rod 2, the both sides of groove are provided with two semicircles
The retainer ring 19 of shape, the lower end of lower push-rod 22 are provided with annular groove, are engaged with retainer ring 19, can be embedded in push rod 2, make contiguous block
4 and spiral handspike 2 be linked to be one piece, when lower push-rod 22 moves upwards, can be achieved to spring loads and stretch purpose.Fixed station
It is in the groove-like of triangle among the upper surface of frame 3, upper push-rod 21 can be avoided to occur when moving back and forth with fixed rack 3
Interference, so as to improve the service efficiency of spring test device.In order that the nonlinear motion of upper push-rod 21 is converted into vertical direction
On linear motion, be provided with the manhole that is engaged with lower push-rod 22 in the centre of fixed rack 3.
Specifically, hydraulic circuit module includes compression blocks 5, oil cylinder 6 and hydraulic cylinder 7, one end and the contiguous block 4 of connecting rod 12
It is connected, the other end of connecting rod 12 is connected by expansion link 8 with compression blocks 5, and compression blocks 5 are located at the inside of oil cylinder 6, oil cylinder 6
Bottom both ends are respectively equipped with a control valve 20.When compression blocks 5 move up and down, the Medium Oil in oil cylinder 6 passes through control valve 20
Corresponding valve port flows in or out hydraulic cylinder 7.
In the present embodiment, expansion link 8 is provided with positioning hole 14.Expansion link 8 includes interior bar and is sheathed on outside interior bar
Outer bar, interior bar are Filled Rectangle, and outer bar is hollow rectangle, and positioning hole 14 is equidistantly arranged in interior bar and outer bar, and mutually
Symmetrically., can be by changing the link position of steady pin and positioning hole 14, so as to change the length of lower push-rod 22 in real work
Degree, so as to change the Volume Changes of Medium Oil in oil cylinder 6, the axial tension to spring to be measured is realized in the case where stroke is certain
Or the controllability of pressure.
Preferably, the bosom of hydraulic cylinder 7 is provided with mobile sliding block 18, and the both ends of mobile sliding block 18 and hydraulic cylinder 7 pass through
Elastic component is connected, and in the present embodiment, elastic component is preferably spring.When opening the control valve 20 for the oil cylinder 6 being attached thereto, oil
The relevant position that Medium Oil in cylinder 6 can be flowed into hydraulic cylinder 7, and promote mobile sliding block 18 to be moved to the other end, so as to be treated
Survey spring and apply axial tension or pressure.
The service efficiency of spring test device in order to better improve, one is respectively equipped with the bottom both ends of hydraulic cylinder 7
Spill port, when needing to change the direction of axial force or stop experiment, the Medium Oil in hydraulic cylinder 7 can pass through spill port weight
It is new to flow into oil cylinder.
Loading stress module includes spring assembly 9, base 10 and oil returning tube 11, spring assembly 9 by stretch rod 13 and
Hydraulic cylinder 7 is connected, and base 10 is located at the lower section of spring assembly 9, and hydraulic cylinder 7 is connected by oil returning tube 11 with oil cylinder 6.
As shown in Figure 4 and Figure 5, spring assembly includes spring clip 91, spring 92 and spring pressure head 93, and spring pressure head 93 is located at
The bottom of contiguous block 4, and the both sides of spring pressure head 93 are provided with the retraction hole that is engaged with spring clip 91, can avoid stretching or
Spring pressure head 93 can not be acted directly on spring during compression, so as to cause the phenomenon of unbalance stress to occur.In the present embodiment,
Contiguous block 4 and spring pressure head 93, connecting rod 12 be by fixed pin connection, can be respectively by spring pressure head 93 and connecting rod 12
Dismounting, form the single factors measurement of spring., can only influence of the measurement axial force to spring when laying down spring pressure head 93；
, can the only influence of measurement pure extension or compression to spring when laying down connecting rod 12.
As shown in fig. 6, base 10 is provided with spring locating clip 16, the quantity of spring locating clip 16 is preferably four, and is located at
Base 10 is along the circumferential direction upper evenly distributed, spring to be measured can be fixed on base 10, not transported with the motion of drive module
It is dynamic.Base 10 is additionally provided with four corresponding slideways 17, in cross-shaped arrangement, before spring locating clip 16 can be carried out along slideway 17
After move, the spring of different model size is fixed with this.
Spring test device of the present invention, the spring fatigue life test of four kinds of forms can be achieved, specifically include：Bullet
The radial direction pure compression of spring, the radial direction pure extension of spring, the axial pure compression of spring and the axial pure extension of spring.And it is possible to
It is combined with each other the fatigue life test realized under various actual conditions.
Operation principle of the spring test device when carrying out the experiment of spring radial compression is as follows：First, spring diameter is determined
Size, then the spring locating clip 16 in mobile base 10 arrive relevant position, spring to be measured is mounted and fixed on base 10；
Afterwards, the connecting rod 12 of the axial force distribution device of connection liquid cylinder pressure 7 is laid down, determines the size of compression stress, i.e. movement travel d；Then,
Lower push-rod 22 is adjusted, moved down d/2, i.e., lower push-rod 22 extends d/2, and spring to be measured now down have compressed d/2；Connect
, the link position of regulation upper push-rod 21 and rotating disk 1, by its chute 15 from the center position of rotating disk 1 along rotating disk 1 toward vertically
Up the edge direction movement d/2 in direction, spring to be measured now are in free state again；When upper push-rod 21 is with rotating disk 1
During rotational motion, lower push-rod 22 is driven to compress spring to be measured downwards, when the fixing point of rotating disk 1 and upper push-rod 21 moves to vertically just
During lower section, that is, 180 ° are turned over, spring reaches maximum compressibility；When rotating disk 1 continues to rotate to peak, spring is in free shape
State, that is, complete a compression circulation；Finally, after expected cycle-index, experiment is terminated.
Operation principle of the spring test device when carrying out spring radial drawing experiment is as follows：First, spring diameter is determined
Size, then the spring locating clip 16 in mobile base 10 arrive relevant position, spring to be measured is mounted and fixed on base 10；
Afterwards, the connecting rod 12 of the axial force distribution device of connection liquid cylinder pressure 7 is laid down, determines the size of tensile force, i.e. movement travel d；Then,
Lower push-rod 22 is adjusted, it is up moved to d/2, be i.e. lower push-rod 22 shortens d/2, and spring to be measured now has up stretched d/2；Connect
, the link position of regulation upper push-rod 21 and rotating disk 1, by its chute 15 from the center position of rotating disk 1 along rotating disk 1 toward vertically
Down the edge direction movement d/2 in direction, spring to be measured now are in free state again；When upper push-rod 21 is with rotating disk 1
During rotational motion, lower push-rod 22 is driven to be pulled up spring to be measured, when the fixing point of rotating disk 1 and upper push-rod 21 moves to vertically just
During top, that is, 180 ° are turned over, spring reaches maximum tension amount；When rotating disk 1 continues to rotate to minimum point, spring is in free shape
State, that is, complete a stretching circulation；Finally, after expected cycle-index, experiment is terminated.
Operation principle of the spring test device when carrying out spring radial direction tensile compression test is as follows：First, spring diameter is determined
Size, then the spring locating clip 16 in mobile base 10 arrive relevant position, spring to be measured is mounted and fixed on base 10；
Afterwards, the connecting rod 12 of the axial force distribution device of connection liquid cylinder pressure 7 is laid down, determines the size of tensile force, i.e. movement travel d；Then,
Adjust the link position of upper push-rod 21 and rotating disk 1, by its chute 15 from the center position of rotating disk 1 along rotating disk 1 toward vertically to
Upper (or moving down) d, spring to be measured now are in maximum tension (or compression) state；With the rotation of rotating disk 1, when turning over
At 90 °, spring to be measured is in free state；When turning over 180 °, spring to be measured is in most compressed state；When turning over 270 °
When, spring affranchises state again；When turning over 360 °, spring is in most compressed state, completes a circulation；Finally, pass through
After crossing expected cycle-index, terminate experiment.
Operation principle of the spring test device when carrying out spring axial tension or compression test is as follows：First, it is determined that being
Unidirectional tension and compression or two-direction pull press, if unidirectionally, it is necessary to first lay down the left side or the right-hand component of connecting rod 12；Then, really
Determine spring diameter size, then the spring locating clip 16 in mobile base 10 arrives relevant position, and spring to be measured is installed and fixed
On base 10；Then, the spring pressure head 93 being fixed on contiguous block 4 is laid down, and spring clip 91 is arranged on spring to be measured；
It is then determined that the size of tensile force, i.e. movement travel；Afterwards, the right of oil cylinder 6 (or left side) is opened according to stretching (or compression)
Control valve 20；Then, the link position of upper push-rod 21 and rotating disk 1 is correspondingly adjusted, by it from the center position of rotating disk 1 along turning
For the chute 15 of disk 1 toward respective distance is moved vertically downward, spring to be measured now is in maximum axial stretching (or compressive state)；
When rotating disk 1 rotates 180 °, spring to be measured now is in free state；When rotating disk 1 rotates 360 °, spring to be measured now
Again in maximum axial stretching (or compressive state), a circulation is completed；Finally, after expected cycle-index, examination is terminated
Test, closing control valve 20, the oil returning tube 11 for opening the corresponding bottom of hydraulic cylinder 7 is switched, and Medium Oil is returned into oil cylinder 6.
Certainly, according to being actually needed, these four simple operating modes can be combined with each other to form new complex working condition, specific work
Make principle with as above.During the complex working condition of particularly radial tension and compression and axial push-pull mixing, previously determined good radial stroke
After (load), required axial stroke (load) can be reached by the length of adjustable telescopic rod 8 again.
Above-described embodiment is the preferable embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any Spirit Essences without departing from the present invention with made under principle change, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (10)
1. a kind of spring test device, it is characterised in that including drive module, hydraulic circuit module and loading stress module, institute
State drive module to be connected with the hydraulic circuit module by connecting rod, the hydraulic circuit module is added by stretch rod with described
Carry the connection of stress module；
The drive module includes rotating disk, push rod, fixed rack and contiguous block, and the upper end of the push rod is connected with the rotating disk,
The lower end of the push rod is connected with the fixed rack, and the bottom of the push rod is connected with the contiguous block；
The hydraulic circuit module includes compression blocks, oil cylinder and hydraulic cylinder, and one end of the connecting rod is connected with the contiguous block,
The other end of the connecting rod is connected by expansion link with the compression blocks, and the compression blocks are located at the inside of the oil cylinder, institute
The bottom for stating oil cylinder is provided with control valve, and when the compression blocks move, the Medium Oil in the oil cylinder passes through the control valve phase
Corresponding valve port flows in or out the hydraulic cylinder；
The loading stress module includes spring assembly, base and oil returning tube, the spring assembly by the stretch rod and
The hydraulic cylinder is connected, and the base is located at the lower section of the spring assembly, and the hydraulic cylinder passes through the oil returning tube and institute
Oil cylinder is stated to be connected.
2. spring test device as claimed in claim 1, it is characterised in that the push rod includes upper push-rod and lower push-rod, institute
State upper push-rod to be hinged with the lower push-rod, the upper push-rod is fixed on the rotating disk by fastener, the lower push-rod and institute
Fixed rack is stated to be detachably connected.
3. spring test device as claimed in claim 2, it is characterised in that be equipped with the lower push-rod and the expansion link
Positioning hole；
The centre of the fixed rack is provided with the through hole being engaged with the positioning hole on the lower push-rod；
The expansion link includes interior bar and the outer bar that is sheathed on outside the interior bar, and the interior bar is Filled Rectangle, the outer bar
For hollow rectangle, the positioning hole is equidistantly arranged in the interior bar and the outer bar, and symmetrically.
4. spring test device as claimed in claim 1, it is characterised in that the spring assembly include spring clip, spring and
Spring pressure head, the spring pressure head is located at the bottom of the contiguous block, and the both sides of the spring pressure head are provided with and the spring
Press from both sides the retraction hole being engaged.
5. spring test device as claimed in claim 2, it is characterised in that the rotating disk is cylindrical, and the rotating disk
Surface is provided with chute, and the upper push-rod is connected by fastener with the chute.
6. spring test device as claimed in claim 1, it is characterised in that the top of the contiguous block is provided with and the push rod
The groove that bottom is engaged, the both sides of the groove are provided with retainer ring.
7. spring test device as claimed in claim 1, it is characterised in that the base is provided with spring locating clip and slideway,
The spring locating clip moves along the slideway；
The quantity of the slideway is four, and is in cross-shaped arrangement.
8. spring test device as claimed in claim 1, it is characterised in that the inside of the hydraulic cylinder is provided with mobile sliding block,
The mobile sliding block is connected with the both ends of the hydraulic cylinder by elastic component.
9. spring test device as claimed in claim 1, it is characterised in that the bottom both ends of the hydraulic cylinder are respectively equipped with back
Oilhole.
10. spring test device as claimed in claim 1, it is characterised in that be in three among the upper surface of the fixed rack
Angular shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710915265.8A CN107806987B (en) | 2017-09-30 | 2017-09-30 | A kind of spring test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710915265.8A CN107806987B (en) | 2017-09-30 | 2017-09-30 | A kind of spring test device |
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| Publication Number | Publication Date |
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| CN107806987A true CN107806987A (en) | 2018-03-16 |
| CN107806987B CN107806987B (en) | 2019-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710915265.8A Active CN107806987B (en) | 2017-09-30 | 2017-09-30 | A kind of spring test device |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108896392A (en) * | 2018-06-26 | 2018-11-27 | 中国直升机设计研究所 | A kind of spring pull rod test device |
| CN114112368A (en) * | 2021-12-03 | 2022-03-01 | 中国原子能科学研究院 | Spring testing device and method |
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| CN114112368A (en) * | 2021-12-03 | 2022-03-01 | 中国原子能科学研究院 | Spring testing device and method |
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| Publication number | Publication date |
|---|---|
| CN107806987B (en) | 2019-07-16 |
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