CN107806987B - A kind of spring test device - Google Patents
A kind of spring test device Download PDFInfo
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- CN107806987B CN107806987B CN201710915265.8A CN201710915265A CN107806987B CN 107806987 B CN107806987 B CN 107806987B CN 201710915265 A CN201710915265 A CN 201710915265A CN 107806987 B CN107806987 B CN 107806987B
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- test device
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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 devices, including drive module, hydraulic circuit module and load by power module, the drive module is connect by connecting rod with the hydraulic circuit module, and the hydraulic circuit module is connect with the load by power module by stretch rod.The present invention makes spring under the action of load is by power module, realizes the purpose of spring-mass and life test by driving hydraulic circuit module under the driving of drive module.
Description
Technical field
The present invention relates to spring the field of test technology, in particular to a kind of spring test device.
Background technique
Spring before use, needs to lead to come the machine components of work using elasticity as a kind of after producing
Crossing stringent test can just come into operation.Because spring majority is used in mechanical, vehicles main components, if dress
Spring onboard does not pass through stringent test, but covariant is bound to mounted in vehicles if performance does not reach requirement
It will cause consequence very serious.And it is used for the spring of shock-absorbing, because of the decline of its performance, so that vehicle disequilibrium, is easy
Traffic accident occurs.
With the development of modern industry, various springs play increasingly important role in every field.And
Wherein the quality of spring-mass greatly affected the total quality of work, agricultural production equipment again, to affect the warp of society
Ji development.
Therefore, it is necessary for carrying out test simultaneously to the quality of spring and service life.
Summary of the invention
It for the technical problems in the prior art, can the object of the present invention is to provide a kind of spring test device
The fatigue life of accurate test spring.
The purpose of the invention is achieved by the following technical solution: a kind of spring test device, including drive module, hydraulic time
By power module, the drive module is connect by connecting rod with the hydraulic circuit module for road module and load, and described hydraulic time
Road module is connect with the load by power module by stretch rod；
The drive module includes turntable, push rod, fixed rack and link block, the upper end of the push rod and the turntable phase
Even, the lower end of the push rod is connected with the fixed rack, and the bottom end of the push rod is connected with the link block；
The hydraulic circuit module includes compression blocks, oil cylinder and hydraulic cylinder, one end of the connecting rod and the link block
It is connected, the other end of the connecting rod is connected by telescopic rod with the compression blocks, and the compression blocks are located at the interior of the oil cylinder
The bottom in portion, the oil cylinder is equipped with control valve, and when compression blocks movement, 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 load is included spring assembly, pedestal and oil returning tube by power module, and the spring assembly passes through the stretching
Bar is connected with the hydraulic cylinder, and the pedestal 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 and the lower push-rod are hinged, described above to push away
Bar is fixed on the turntable by fastener, and the lower push-rod is detachably connected with the fixed rack.
Preferably, location hole is equipped on the lower push-rod and the telescopic rod；
The centre of the fixed rack is equipped with the through-hole matched with the location hole on the lower push-rod；
The telescopic rod includes interior bar and the outer bar that is sheathed on outside the interior bar, and the interior bar is Filled Rectangle, described
Outer bar is hollow rectangle, and the location hole is equidistantly set 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 end of block, and the two sides of the spring pressure head are equipped with the retraction hole matched with the spring clip.
Preferably, the turntable is cylindrical, and the surface of the turntable is equipped with sliding slot, and the upper push-rod passes through fastener
It is connected with the sliding slot.
Preferably, the top of the link block is equipped with the groove matched with the push rod bottom end, the both sides of the groove
Equipped with fixed ring.
Preferably, the pedestal is equipped with spring positioning folder and slideway, and the spring positioning folder is moved along the slideway；
The quantity of the slideway is four, and is in cross-shaped arrangement.
Preferably, the inside of the hydraulic cylinder is equipped with mobile sliding block, and the both ends of the mobile sliding block and the hydraulic cylinder are logical
Elastic component is crossed to be connected.
Preferably, the bottom both ends of the hydraulic cylinder are respectively equipped with oil return hole.
Preferably, triangular shape among the upper surface of the fixed rack.
The present invention has the following advantages and effects with respect to the prior art:
1, spring test device provided by the invention, including drive module, hydraulic circuit module and load are by power module, institute
It states drive module to connect by connecting rod with the hydraulic circuit module, the hydraulic circuit module is added by stretch rod with described
Load is connected by power module, under the driving of drive module, drives hydraulic circuit module, makes effect of the spring in load by power module
Under, actual condition can be simulated, spring is axially loaded, test power and the service life of its rigidity.
2, spring test device provided by the invention, push rod include upper push-rod and lower push-rod, the upper push-rod and it is described under
Push rod is hinged, and the upper push-rod is fixed on the turntable by fastener, and the lower push-rod and the fixed rack are detachable
Connection can test stretching and the two kinds of fatigue lives of compression of spring simultaneously.
Detailed description of the invention
Fig. 1 is the main view of spring test device of the embodiment of the present invention；
The structural schematic diagram of lower push-rod in Fig. 2 spring test device of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of spring test device turntable of the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of spring clip in spring test device of the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of spring pressure head in spring test device of the embodiment of the present invention；
Fig. 6 is the structural schematic diagram of pedestal in spring test device of the embodiment of the present invention.
Wherein, in the embodiment of the present invention: 1, turntable；2, push rod；21, upper push-rod；22, lower push-rod；3, fixed rack；4, even
Connect block；5, compression blocks；6, oil cylinder；7, hydraulic cylinder；8, telescopic rod；9, spring assembly；91, spring clip；92, spring；93, spring pressure
Head；10, pedestal；11, oil returning tube；12, connecting rod；13, stretch rod；14, location hole；15, sliding slot；16, spring positioning is pressed from both sides；
17, slideway；18, mobile sliding block；19, fixed ring；20, control valve.
Specific embodiment
Present invention will now be described in further detail with reference to the embodiments and the accompanying drawings, 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 load are by power module, and drive module is connect by connecting rod 12 with hydraulic circuit module, and hydraulic circuit module passes through stretching
Bar 13 is connect with load by power module.Spring test device of the present invention, under the driving of drive module, band hydrodynamic pressure is returned
Road module makes spring under the action of load is by power module, can simulate actual condition and axially load to spring, test it
The power of rigidity and service life.
Specifically, drive module includes turntable 1, push rod 2, fixed rack 3 and link block 4, upper end and the turntable 1 of push rod 2
It is connected, the lower end of push rod 2 is connected with fixed rack 3, and the bottom end of push rod 2 is connected with link block 4.
As shown in Fig. 2, push rod 2 includes upper push-rod 21 and lower push-rod 22, upper push-rod 21 and lower push-rod 22 are hinged, 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 equipped with positioning
Hole 14, the centre of fixed rack 3 are equipped with the through-hole matched with the location hole 14 on lower push-rod 22.In the present embodiment, it above pushes away
Bar 21 is fixed on the turntable 1 by fixed pin, and lower push-rod 22 has the function of adjusting this body length, can be by changing lower push-rod
The position of location hole 14 on 22, thus it is possible to vary its length.
As shown in figure 3, turntable 1 is in thin cylindric, and the surface of turntable 1 is equipped with symmetrical sliding slot 15, and sliding slot 15 is most
Centre is connected by fixed pin with upper push-rod 21, and the position for changing fixed pin is passed through, thus it is possible to vary push rod 2 and turntable 1 are consolidated
Positioning is set.When turntable 1 is started to work, the stroke and track that push rod 2 moves up and down can change with the change of fixed point.
In addition, the top of link block 4 is equipped with the groove that matches with 2 bottom end of push rod, the both sides of groove set that there are two semicircles
The lower end of the fixed ring 19 of shape, lower push-rod 22 is equipped with annular groove, matches with fixed ring 19, embeddable push rod 2 makes link block
4 and spiral handspike 2 be linked to be one piece, when lower push-rod 22 moves upwards, it can be achieved that spring loads and stretch purpose.Fixed station
It is in the groove-like of triangle among the upper surface of frame 3, can occurs when moving back and forth with fixed rack 3 to avoid upper push-rod 21
Interference, to improve the service efficiency of spring test device.In order to make the nonlinear motion of upper push-rod 21 be converted into vertical direction
On linear motion, be equipped with the circular through hole that matches 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 link block 4 of connecting rod 12
It is connected, the other end of connecting rod 12 is connected by telescopic rod 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, telescopic rod 8 is equipped with location hole 14.Telescopic rod 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 location hole 14 is equidistantly set in interior bar and outer bar, and mutually
Symmetrically.It in actual operation, can be by the link position of change fixed pin and location hole 14, to change the length of lower push-rod 22
Degree realizes the axial tension to spring to be measured in the case where stroke is certain to change the volume change of Medium Oil in oil cylinder 6
Or the controllability of pressure.
Preferably, the bosom of hydraulic cylinder 7 is equipped with mobile sliding block 18, and mobile sliding block 18 and the both ends of 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
Medium Oil in cylinder 6 can flow into the corresponding position in hydraulic cylinder 7, and push mobile sliding block 18 mobile to the other end, thus to
It surveys spring and applies axial tension or pressure.
The service efficiency of spring test device in order to better improve is respectively equipped with one at the bottom both ends of hydraulic cylinder 7
Oil return hole, when the direction or stopping test for needing to change axial force, the Medium Oil in hydraulic cylinder 7 can pass through oil return hole weight
It is new to flow into oil cylinder.
Load is included spring assembly 9, pedestal 10 and oil returning tube 11 by power module, spring assembly 9 by stretch rod 13 with
Hydraulic cylinder 7 is connected, and pedestal 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 end of link block 4, and the two sides of spring pressure head 93 are equipped with the retraction hole that matches with spring clip 91, can to avoid stretching or
Spring pressure head 93 cannot act directly on spring when compression, occur so as to cause the phenomenon that unbalance stress.In the present embodiment,
Link 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
Disassembly forms the single factors measurement of spring.It, can only influence of the measurement axial force to spring when laying down spring pressure head 93；
It, can the only influence of measurement pure extension or compression to spring when laying down connecting rod 12.
As shown in fig. 6, pedestal 10 is equipped with spring positioning folder 16, the quantity of spring positioning folder 16 is preferably four, and is located at
Pedestal 10 is along the circumferential direction upper evenly distributed, and spring to be measured can be fixed on pedestal 10, do not transported with the movement of drive module
It is dynamic.Pedestal 10 is additionally provided with four corresponding slideways 17, is in cross-shaped arrangement, before spring positioning folder 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, it can be achieved that four kinds of forms spring fatigue life test, specifically include: bullet
The radial pure compression of spring, the radial 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.
Working principle of the spring test device when carrying out the test of spring radial compression is as follows: firstly, determining spring diameter
Size, then the spring positioning folder 16 in mobile base 10 arrives corresponding position, and spring to be measured is mounted and fixed on pedestal 10；
Later, the connecting rod 12 for laying down 7 axial force distribution device of connection liquid cylinder pressure determines the size of compressing force, 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 at this time has compressed d/2 down；It connects
, the link position of upper push-rod 21 and turntable 1 is adjusted, it is past vertical along the sliding slot 15 of turntable 1 from 1 center position of turntable
Up the mobile d/2 of the edge direction in direction, spring to be measured at this time are in free state again；When upper push-rod 21 is with turntable 1
When rotational motion, lower push-rod 22 is driven to compress spring to be measured downwards, when the fixed point of turntable 1 and upper push-rod 21 moves to vertically just
When lower section, that is, 180 ° are turned over, spring reaches maximum compressibility；When turntable 1 continues to rotate to highest point, spring is in free shape
State completes a compression circulation；Finally, terminating test after expected cycle-index.
Working principle of the spring test device when carrying out spring radial drawing test is as follows: firstly, determining spring diameter
Size, then the spring positioning folder 16 in mobile base 10 arrives corresponding position, and spring to be measured is mounted and fixed on pedestal 10；
Later, the connecting rod 12 for laying down 7 axial force distribution device of connection liquid cylinder pressure determines the size of drawing force, i.e. movement travel d；Then,
Lower push-rod 22 is adjusted, it is up moved to d/2, is i.e. lower push-rod 22 shortens d/2, and spring to be measured at this time has up stretched d/2；It connects
, the link position of upper push-rod 21 and turntable 1 is adjusted, it is past vertical along the sliding slot 15 of turntable 1 from 1 center position of turntable
The mobile d/2 of the edge direction in direction, spring to be measured at this time are in free state again down；When upper push-rod 21 is with turntable 1
When rotational motion, lower push-rod 22 is driven to be pulled up spring to be measured, when the fixed point of turntable 1 and upper push-rod 21 moves to vertically just
When top, that is, 180 ° are turned over, spring reaches maximum tension amount；When turntable 1 continues to rotate to minimum point, spring is in free shape
State completes a stretching circulation；Finally, terminating test after expected cycle-index.
Working principle of the spring test device when carrying out spring radial direction tensile compression test is as follows: firstly, determining spring diameter
Size, then the spring positioning folder 16 in mobile base 10 arrives corresponding position, and spring to be measured is mounted and fixed on pedestal 10；
Later, the connecting rod 12 for laying down 7 axial force distribution device of connection liquid cylinder pressure determines the size of drawing force, i.e. movement travel d；Then,
The link position for adjusting upper push-rod 21 and turntable 1, by its from 1 center position of turntable along turntable 1 sliding slot 15 it is past vertically to
Upper (or moving down) d, spring to be measured at this time are in maximum tension (or compression) state；With the rotation of turntable 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, through
After crossing expected cycle-index, terminate test.
Working principle of the spring test device when carrying out spring axial tension or compression test is as follows: firstly, determination is
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 positioning folder 16 in mobile base 10 arrives corresponding position, and spring to be measured is installed and fixed
On pedestal 10；Then, the spring pressure head 93 being fixed on link block 4 is laid down, and spring clip 91 is mounted on spring to be measured；
It is then determined that the size of drawing force, i.e. movement travel；Later, 6 the right (or left side) of oil cylinder is opened according to stretching (or compression)
Control valve 20；Then, the link position for adjusting accordingly upper push-rod 21 Yu turntable 1, by its from 1 center position of turntable along turn
Toward respective distance is moved vertically downward, spring to be measured at this time is in maximum axial and stretches (or compressive state) sliding slot 15 of disk 1；
When turntable 1 rotates 180 °, spring to be measured at this time is in free state；When turntable 1 rotates 360 °, spring to be measured at this time
(or compressive state) is stretched in maximum axial again, completes a circulation；Finally, terminating examination after expected cycle-index
It tests, closes control valve 20, the oil returning tube 11 for opening corresponding 7 bottom of hydraulic cylinder switchs, and Medium Oil is returned to oil cylinder 6.
Certainly, according to actual needs, these four simple operating conditions can be combined with each other to form new complex working condition, specific work
Make principle with as above.When 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 adjusting the length of telescopic rod 8 again.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (9)
1. a kind of spring test device, which is characterized in that including drive module, hydraulic circuit module and load by power module, institute
It states drive module to connect by connecting rod with the hydraulic circuit module, the hydraulic circuit module is added by stretch rod with described
Load is connected by power module；
The drive module includes turntable, push rod, fixed rack and link block, and the upper end of the push rod is connected with the turntable,
The lower end of the push rod is connected with the fixed rack, and the bottom end of the push rod is connected with the link block；
The hydraulic circuit module includes compression blocks, oil cylinder and hydraulic cylinder, and one end of the connecting rod is connected with the link block,
The other end of the connecting rod is connected by telescopic rod 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 equipped with control valve, and when compression blocks movement, the Medium Oil in the oil cylinder passes through the control valve phase
Corresponding valve port flows in or out the hydraulic cylinder；
The load is included spring assembly, pedestal and oil returning tube by power module, the spring assembly by the stretch rod with
The hydraulic cylinder is connected, and the pedestal 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；
The inside of the hydraulic cylinder is equipped with mobile sliding block, and the both ends of the mobile sliding block and the hydraulic cylinder pass through elastic component phase
Even.
2. spring test device as described in claim 1, which is characterized in that the push rod includes upper push-rod and lower push-rod, institute
It states upper push-rod and the lower push-rod is hinged, the upper push-rod is fixed on the turntable 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, which is characterized in that be equipped on the lower push-rod and the telescopic rod
Location hole；
The centre of the fixed rack is equipped with the through-hole matched with the location hole on the lower push-rod；
The telescopic rod 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 location hole is equidistantly set in the interior bar and the outer bar, and symmetrically.
4. spring test device as described in claim 1, which is characterized in that the spring assembly include spring clip, spring and
Spring pressure head, the spring pressure head is located at the bottom end of the link block, and the two sides of the spring pressure head are equipped with and the spring
Press from both sides the retraction hole matched.
5. spring test device as claimed in claim 2, which is characterized in that the turntable is cylindrical, and the turntable
Surface is equipped with sliding slot, and the upper push-rod is connected by fastener with the sliding slot.
6. spring test device as described in claim 1, which is characterized in that the top of the link block is equipped with and the push rod
The both sides of the groove that bottom end matches, the groove are equipped with fixed ring.
7. spring test device as described in claim 1, which is characterized in that the pedestal is equipped with spring positioning folder and slideway,
The spring positioning folder is moved along the slideway；
The quantity of the slideway is four, and is in cross-shaped arrangement.
8. spring test device as described in claim 1, which is characterized in that the bottom both ends of the hydraulic cylinder are respectively equipped with back
Oilhole.
9. spring test device as described in claim 1, which is characterized in that be in triangle among the upper surface of the fixed rack
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 |
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| 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 CN107806987A (en) | 2018-03-16 |
| CN107806987B true CN107806987B (en) | 2019-07-16 |
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| CN201710915265.8A Active CN107806987B (en) | 2017-09-30 | 2017-09-30 | A kind of spring test device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114112368B (en) * | 2021-12-03 | 2023-08-18 | 中国原子能科学研究院 | Spring testing device and method |
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| CN201532297U (en) * | 2009-10-19 | 2010-07-21 | 株洲时代新材料科技股份有限公司 | Air spring test device |
| CN202869796U (en) * | 2012-10-19 | 2013-04-10 | 浙江金刚汽车有限公司 | Durability testing machine for machinery footboard spring |
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| CN107806987A (en) | 2018-03-16 |
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