CN206281725U - A kind of spring fatigue tester - Google Patents
A kind of spring fatigue tester Download PDFInfo
- Publication number
- CN206281725U CN206281725U CN201621401632.XU CN201621401632U CN206281725U CN 206281725 U CN206281725 U CN 206281725U CN 201621401632 U CN201621401632 U CN 201621401632U CN 206281725 U CN206281725 U CN 206281725U
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- China
- Prior art keywords
- spring
- baffle plate
- axle
- leading screw
- chute
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Abstract
The utility model discloses a kind of spring fatigue tester, including sensor, amplitude adjusting mechanism and length adjustment mechanism；Amplitude adjusting mechanism includes crank and rocking bar, and crank is provided with chute, and freely slidable sliding block and the leading screw for freely rotating are provided with chute, and sliding block is hinged with one end of rocking bar, and two other ends of rocking bar pass through rod hinge connection；The every bottom of leading screw is removably connected with a connecting shaft being vertically arranged respectively, and connecting shaft bottom is respectively equipped with driven wheel of differential, and driven wheel of differential is meshed with the drive bevel gear positioned at rotating shaft two ends, and the worm gear engaged with the worm shaft of handwheel is provided with rotating shaft；Length adjustment mechanism includes the axle being vertically arranged, and the bottom of axle is fixed on connecting rod, and the perforation of baffle plate is stretched on top, and on axle, sensor is connected spring housing with spring；The utility model can realize the quick regulation to the experiment amplitude of spring, it is adaptable to the installation experiment of the spring in the range of greater depth.
Description
Technical field
The utility model belongs to spring fatigue test technical field, more particularly to a kind of equipment for testing fatigue of spring.
Background technology
Spring fatigue tester is moved reciprocatingly by motor, reductor connection cam driven connecting rod, is realized to spring
Compression motion, is mainly used in the low-frequency experiment on fatigue properties of various helical springs；Under normal circumstances, connecting rod and the one of spring
End is directly or indirectly connected, and the spring other end is withstood on other attached parts, makes the vibration of the motion drive spring of connecting rod.This
Known in art personnel, the processing of cam is more complicated, and precision is difficult to control to, and makes the wearability of the material of cam and strong
Degree requires higher.Therefore, moved reciprocatingly using cam driven connecting rod on spring fatigue tester, its cost of manufacture and difficulty
Degree is of a relatively high, and existing testing machine reciprocating mechanism less stable, and the fatigue tester of spring is due to being special
For the test of spring fatigue strength character, the frequency of use of its reciprocating mechanism is higher, in long-term testing fatigue, more
Plus it is easily damaged failure.In use, because connecting rod will drive spring vibration, it is necessary to adjust experiment according to different types of springs
Spring amplitude, just need further exist for adjust connecting rod position height, i.e., at the trial, positioned at spring top baffle plate progressively
Predetermined position is displaced downwardly to, the attached parts being connected with above-mentioned connecting rod or connecting rod are spaced in the range of certain distance, so that
The amplitude of spring is limited in a certain desired value.Spring in addition to experiment amplitude difference, spring different size to be tested its
Length is also differed, so, the installation of different length spring can be also met when this requires that amplitude is adjusted.
Utility model content
The purpose of this utility model is to solve above-mentioned technical problem, there is provided a kind of spring fatigue tester, the testing machine
The quick regulation to the experiment amplitude of spring can be realized, it is adaptable to the installation experiment of the spring in the range of greater depth.
The technical solution of the utility model is as follows：
A kind of spring fatigue tester, including for the sensor of detection spring elastic force, also shaken including regulation spring experiment
The amplitude adjusting mechanism of width and the length adjustment mechanism of regulation spring installation length；
The amplitude adjusting mechanism includes two crank and rocker mechanisms being symmetrical set；The crank and rocker mechanism bag
Include crank and rocking bar, the crank is provided with chute, be provided with the chute can be in chute slidably sliding block and in chute
The interior leading screw for freely rotating, the slide block set constitutes screw thread pair on leading screw, and the sliding block is hinged with one end of rocking bar, and two are shaken
The other end of bar is connected by rod hinge connection；The every bottom of leading screw is removably connected with a connection being vertically arranged respectively
Axle, every connecting shaft bottom is respectively equipped with a driven wheel of differential, the driven wheel of differential respectively with horizontally disposed rotating shaft
The drive bevel gear at two ends is meshed, and is additionally provided with worm gear in the rotating shaft, the worm screw on the worm gear and the worm shaft of handwheel
Part is meshed；
The length adjustment mechanism includes some axles being vertically arranged, and the bottom of the axle is fixed on the connecting rod, pushes up
End
The perforation of the baffle plate of travelling carriage bottom is stretched into, the baffle plate is horizontally disposed with, and spring housing to be tested is positioned at connecting rod
On the axle and baffle plate between, the sensor is installed on baffle plate and is connected with spring and carrys out detection spring elastic force；When described
During link motion, the axle is moved freely in the perforation of baffle plate so as to compress or discharge spring to be tested.
Further, the bottom of the leading screw is by being fixed on the chuck on connecting shaft top and connecting shaft releasable connection, institute
State chuck to be made up of the folder ear of the two panels tabular for being provided with the cylindrical sleeve of insertion breach and being connected with its breach end, two folder ears pass through spiral shell
The leading screw bottom part that connect and will stretch into chuck is tethered to be fixedly clamped.
Further, the travelling carriage back is respectively arranged on the left side and the right side bar shaped sliding block, and the bar shaped sliding block can be along a left side
Right symmetrically arranged two slide rails are slided, and two bar shaped sliding blocks are connected by horizontally disposed crossbeam, are provided with crossbeam and screw rod
The screwed hole being engaged, the screw rod is vertically arranged and its top is connected with the output shaft of motor.
The beneficial effects of the utility model：The utility model tests the amplitude adjusting mechanism and tune of amplitude by adjusting spring
Shuttling movement when saving the length adjustment mechanism of spring installation length to make spring do fatigue test.Wherein, amplitude adjusting mechanism is adopted
, instead of the motor pattern of existing cam driven connecting rod, not only make structure function with two crank and rocker mechanisms being arranged in pairs
Realization on it is simpler, and two crank and rocker mechanisms are symmetrical arranged and can effectively improve its reliability, and mechanism receives
Power is more uniformly distributed.On the other hand, there is provided being made up of the screw thread pair between screw slider, worm couple and taper gear pair
Transmission mechanism, lift adjustment is carried out come the height and position to crank and rocker mechanism, is adjusted with the height and position for realizing connecting rod, so that
Adjust the amplitude of spring fatigue test.And length adjustment mechanism then can be high to realize the position of baffle plate by the slip of travelling carriage
Degree regulation, and then the spring top height to be reached is limited, and it is suitable for the peace of the spring of different length specification
Dress, improves the range of application of testing machine.Above-mentioned amplitude adjusting mechanism and length adjustment mechanism are organically combined together, the two phase
It is auxiliary to coordinate, its length is better adapted to when mounted, improve on the basis of spring mounting stability and flexibility, spring is entered
The accurate amplitude regulation of row, it is ensured that stability during its motion, can be such that spring fatigue test efficiently and reliably carries out.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is amplitude adjusting mechanism structural representation.
Fig. 3 saves a structural representation for crank and rocker mechanism for amplitude adjusting mechanism.
The structural representation that Fig. 4 is connected for the leading screw of amplitude adjusting mechanism by chuck.
Fig. 5 is jacket structured schematic diagram.
Fig. 6 is the front view of length adjustment mechanism.
Fig. 7 is the left view of length adjustment mechanism.
Fig. 8 is a kind of scheme of installation of sensor.
Fig. 9 is to set a kind of chlamydate the utility model stereogram.
Specific embodiment
Implementation method of the present utility model is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages of the present utility model and effect easily.
The utility model is described in further detail with reference to the accompanying drawings and examples：
As shown in figure 1, a kind of spring fatigue tester, including for the sensor 21 of detection spring elastic force, also including adjusting
The amplitude adjusting mechanism a of the section spring experiment amplitude and length adjustment mechanism b of regulation spring installation length.With existing spring fatigue
Testing machine overhead cam drivening rod is moved reciprocatingly difference, and the utility model uses crank and rocker mechanism to be carried out drivening rod and do
Reciprocally swinging, i.e., as shown in Figure 2,3, the amplitude adjusting mechanism a includes two crank and rocker mechanisms being symmetrical set, institute
Stating crank and rocker mechanism includes motor-driven crank 14 and rocking bar 11, and the crank 14 is provided with chute, and the chute is in song
The groove that the surface of handle 14 opens up, groove structure can make the forms such as common dovetail groove or T-slot in machine tool guideway.
Be provided with the chute can be in chute slidably sliding block 10, leading screw 9 is arranged in chute along chute direction, makes the leading screw 9 can
Freely rotated in chute.Above-mentioned sliding block 10 is enclosed within leading screw 9 and constitutes screw thread pair, makes sliding block 10 on leading screw 9 as similar spiral shell
A female part moves back and forth vertically along leading screw 9, so as to realize the lifting of rocking bar 11.One end of above-mentioned sliding block 10 and rocking bar 11
It is hinged by deep groove ball bearing, two other ends of rocking bar 11 are hinged and connected by connecting rod 13, so that drivening rod 13 is reciprocal
Swing the height and position of simultaneously adjustable link 13.
The every bottom of leading screw 9 is removably connected with a connecting shaft 7 being vertically arranged respectively, and it is specifically detachably connected
Mode can be attached using existing shaft coupling, be respectively equipped with a driven wheel of differential in the bottom of every connecting shaft 7, often
Individual driven wheel of differential respectively with the two ends of horizontally disposed rotating shaft 2, constitute taper gear pair 6, also set in the rotating shaft 2
There is worm gear 3, the worm gear 3 is meshed with the worm section on the worm shaft 4 of handwheel 5.Above-mentioned taper gear pair 6 is long positioned at one
In the transmission case 1 of cube, rotating shaft 2 is with its Worm and worm-wheel gearing all in a cuboid housing more long.
As shown in figure 1, length adjustment mechanism b of the present utility model includes some axles 15 being vertically arranged, the axle 15
Bottom is fixed on the connecting rod 13, i.e. the bottom of axle 15 is stretched into connecting rod 13 and fixed, and the bottom of travelling carriage 17 is stretched on its top
The perforation of baffle plate 1701, the baffle plate 1701 is horizontally disposed with, spring 16 to be tested be enclosed within positioned at connecting rod 13 and baffle plate 1701 it
Between the axle 15 on, clamped or limited by baffle plate 1701 and connecting rod 13 equivalent to spring 16 to be tested, the sensor
21 again by being connected with baffle plate 1701 the elastic force situation come detection spring 16, and when the connecting rod 13 is moved, the axle 15 is in gear
Moved freely in the perforation of plate 1701 so as to compress or discharge spring to be tested 16.
It is the elastic force of detection spring 16, as shown in Figure 1 (and it is not drawn into the detail location knot of sensor 21 shown in dotted line
Structure), sensor 21 can be set directly at the upper of baffle plate 1701, and stretch into flat with the lower surface of baffle plate 1701 after the perforation of baffle plate 1701
Together, thus can with the directly contact of spring 16, for detecting elastic force.Certainly also can be as shown in figure 8, being close in the bottom surface of baffle plate 1701
One piece of contact plate 24 that can be contacted with spring 16, contact plate 24 is by the thread segment of sensor 21 by contact plate 24 and sensor 21
It is fixedly connected on baffle plate 1701, certainly, the sensor 21 for selecting herein should be common bar-shaped threaded sensor.This
Outward, also may be selected tabular sensor, the sensor do adaptability structure improve after (process the perforation of baffle plate 1701) can be straight
Take over for baffle plate 1701, the elastic force as direct detection spring 16；Because sensor technology is highly developed, therefore, this reality
Selected with the new model for sensor and corresponding mounting structure is not specifically described and limited, based on the regulation of above-mentioned amplitude
Mechanism and length installing mechanism, existing various mechanics sensors, every adaptable alternative sensor that all should be used as are used,
And for the detection of spring force, as long as meet sensor can with tested spring have direct or indirect connection relation, can be abundant
Power transmission, you can reach testing goal.
Operation principle：First, adjustment length governor motion b, is adjusted to proper height position, as travelling carriage by baffle plate 1701
17 slip, has various ways to realize in existing guide rail technology, such as driven using ball-screw, or each in machine tool field
Plant guide rail mobile technology.After baffle plate 1701 is adjusted to proper height position, handwheel 5 is rotated, make the circular cone tooth at the two ends of rotating shaft 2
Wheel set 6 is moved, and drives leading screw 9 to rotate, so that the up/down of sliding block 10 is moved, by the lifting of the position of connecting rod 13, so as to adjust connecting rod 13
Vertical spacing and baffle plate 1701 between, just can adjust the experiment amplitude of good spring.The driving of last cranking lever endplay device
Motor, starts working, detection spring elastic force situation in test.
Further, as shown in Figures 4 and 5, the bottom of the leading screw 9 is by being fixed on the chuck 8 on the top of connecting shaft 7 and connecting
The releasable connection of spindle 7, the chuck 8 is by the two panels tabular that is provided with the cylindrical sleeve 801 of insertion breach and is connected with its breach end
Folder ear is constituted, and two folder ears are connected by bolt 802 and the connecting shaft 7 in chuck 8 is fixedly clamped；Using the releasable connection of chuck 8,
Its simple structure, can will stretch into rapidly the leading screw bottom part 901 in chuck 8 and clamp using the tensile force of chuck 8, assembly and disassembly side
Just, while chuck 10 is tightly enclosed within can also improve the axiality of its connection when on leading screw 9.
Further, as shown in Fig. 6-7, the travelling carriage 17 back is respectively arranged on the left side and the right side bar shaped sliding block 1702,
The bar shaped sliding block 1702 can be slided along two slide rails 19 being symmetrical set, and two bar shaped sliding blocks 1702 are by horizontally disposed
Crossbeam (being not drawn into figure, the crossbeam is perpendicular with two bar shaped slide rails 19 and couples together the bar shaped sliding block 1702 of both sides) is even
Connect, be provided with the screwed hole being engaged with screw rod 20 on crossbeam, the screw rod 20 be vertically arranged and its top and motor output
Axle is connected, so as to constitute a screw thread pair, makes motor when rotating, and crossbeam is moved on screw rod 20, so as to drive baffle plate 1702
Move up and down.It is this simple and compact for structure, and corresponding pitch, precision can be selected more preferably to hold according to degree of regulation.This reality
Also shell 22 as shown in Figure 9 can be set in outside with new, and corresponding control panel is set on shell 22, for controlling
Each sensor, executive component or the motor being connected with PLC, the Automated condtrol are the utility model advantageous modification,
Corresponding automated control technology is existing automation field prior art, and the utility model is not limited, therefore does not do herein
Repeat.
Above-described embodiment only illustrative principle of the present utility model and its effect are new not for this practicality is limited
Type.Any person skilled in the art can all be carried out under without prejudice to spirit and scope of the present utility model to above-described embodiment
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the essence disclosed in the utility model
All equivalent modifications completed under god and technological thought or change, should be covered by claim of the present utility model.
Claims (3)
1. a kind of spring fatigue tester, including for the sensor of detection spring elastic force, it is characterised in that also including regulation bullet
The amplitude adjusting mechanism of spring experiment amplitude and the length adjustment mechanism of regulation spring installation length；
The amplitude adjusting mechanism includes two crank and rocker mechanisms being symmetrical set；The crank and rocker mechanism includes song
Handle and rocking bar, the crank are provided with chute, be provided with the chute can be in chute slidably sliding block and in chute from
By the leading screw for rotating, the slide block set constitutes screw thread pair on leading screw, and the sliding block is hinged with one end of rocking bar, two rocking bars
The other end is connected by rod hinge connection；The every bottom of leading screw is removably connected with a connecting shaft being vertically arranged respectively, often
Root connecting shaft bottom is respectively equipped with a driven wheel of differential, the driven wheel of differential respectively with the two ends of horizontally disposed rotating shaft
Drive bevel gear is meshed, and is additionally provided with worm gear in the rotating shaft, the worm screw position phase on the worm gear and the worm shaft of handwheel
Engagement；
The length adjustment mechanism includes some axles being vertically arranged, and the bottom of the axle is fixed on the connecting rod, and top is stretched
Enter the perforation of the baffle plate of travelling carriage bottom, the baffle plate is horizontally disposed with, and spring housing to be tested is between connecting rod and baffle plate
The axle on, the sensor is installed on baffle plate and is connected with spring and carrys out detection spring elastic force；When the link motion,
The axle is moved freely in the perforation of baffle plate so as to compress or discharge spring to be tested.
2. spring fatigue tester according to claim 1, it is characterised in that：The bottom of the leading screw is by being fixed on connection
The chuck on axle top and connecting shaft releasable connection, the chuck is by being provided with the cylindrical sleeve of insertion breach and being connected with its breach end
The folder ear of two panels tabular is constituted, and the leading screw bottom part that two folder ears are bolted and will stretch into chuck is fixedly clamped.
3. spring fatigue tester according to claim 1, it is characterised in that：The left and right sides difference at the travelling carriage back
Bar shaped sliding block is provided with, the bar shaped sliding block can be slided along two slide rails being symmetrical set, and two bar shaped sliding blocks are set by level
The crossbeam connection put, is provided with the screwed hole being engaged with screw rod on crossbeam, and the screw rod is vertically arranged and its top and motor
Output shaft be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621401632.XU CN206281725U (en) | 2016-12-20 | 2016-12-20 | A kind of spring fatigue tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621401632.XU CN206281725U (en) | 2016-12-20 | 2016-12-20 | A kind of spring fatigue tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206281725U true CN206281725U (en) | 2017-06-27 |
Family
ID=59072965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621401632.XU Expired - Fee Related CN206281725U (en) | 2016-12-20 | 2016-12-20 | A kind of spring fatigue tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206281725U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442184A (en) * | 2016-12-20 | 2017-02-22 | 重庆重科智能装备研究院有限公司 | Spring fatigue testing machine |
| CN110108565A (en) * | 2019-06-05 | 2019-08-09 | 长春浩园试验机有限公司 | High frequency composite electron universal testing machine |
| CN112710189A (en) * | 2021-01-27 | 2021-04-27 | 北京安达维尔航空设备有限公司 | Comprehensive fighter plane rocket launcher card elasticity verification vehicle |
-
2016
- 2016-12-20 CN CN201621401632.XU patent/CN206281725U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442184A (en) * | 2016-12-20 | 2017-02-22 | 重庆重科智能装备研究院有限公司 | Spring fatigue testing machine |
| CN110108565A (en) * | 2019-06-05 | 2019-08-09 | 长春浩园试验机有限公司 | High frequency composite electron universal testing machine |
| CN110108565B (en) * | 2019-06-05 | 2024-02-09 | 长春浩园试验机有限公司 | High-frequency composite electronic universal testing machine |
| CN112710189A (en) * | 2021-01-27 | 2021-04-27 | 北京安达维尔航空设备有限公司 | Comprehensive fighter plane rocket launcher card elasticity verification vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170627 Termination date: 20201220 |