CN206281724U - A kind of reciprocally swinging mechanism on spring fatigue tester - Google Patents
A kind of reciprocally swinging mechanism on spring fatigue tester Download PDFInfo
- Publication number
- CN206281724U CN206281724U CN201621401631.5U CN201621401631U CN206281724U CN 206281724 U CN206281724 U CN 206281724U CN 201621401631 U CN201621401631 U CN 201621401631U CN 206281724 U CN206281724 U CN 206281724U
- Authority
- CN
- China
- Prior art keywords
- chute
- leading screw
- crank
- rocking bar
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses the reciprocally swinging mechanism on a kind of spring fatigue tester, including two crank and rocker mechanisms being symmetrical set；Crank and rocker mechanism includes crank and rocking bar, crank is provided with chute, be provided with the chute can be in chute slidably sliding block and the leading screw that is freely rotated in chute, slide block set constitutes screw thread pair on leading screw, sliding block is hinged with one end of rocking bar, and two other ends of rocking bar are connected by connecting rod；The every bottom of leading screw is removably connected with a connecting shaft being vertically arranged respectively, every connecting shaft bottom is respectively equipped with a driven wheel of differential, drive bevel gear of the driven wheel of differential respectively with horizontally disposed rotating shaft two ends is meshed, worm gear is additionally provided with rotating shaft, worm gear is meshed with the worm shaft of handwheel.The mechanism has stronger reliability, it can test amplitude according to different spring fatigue test requirement regulations.
Description
Technical field
The utility model belongs to spring fatigue tester technical field, more particularly to a kind of pendulum for spring fatigue test
Motivation structure.
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, and the motion of connecting rod drives the vibration of spring.Ability
Known in field technique personnel, the processing of cam is more complicated, and precision is difficult to control to, and makes the wearability and intensity of the material of cam
It is required that higher.Therefore, moved reciprocatingly using cam driven connecting rod on spring fatigue tester, its cost of manufacture and difficulty
It is of a relatively high, and existing testing machine reciprocating mechanism less stable, and the fatigue tester of spring is due to being special
In the test of spring fatigue strength character, the frequency of use of its reciprocating mechanism is higher, in long-term testing fatigue, more
It is easily damaged failure.In use, because connecting rod will drive spring vibration, it is necessary to according to different types of springs regulation experiments
The amplitude of spring, just needs further exist for adjusting the position height of connecting rod.
Utility model content
The purpose of this utility model is to solve above-mentioned technical problem, there is provided the past physical pendulum on a kind of spring fatigue tester
Motivation structure, the mechanism has stronger reliability, it can test amplitude according to different spring fatigue test requirement regulations.
The technical solution of the utility model is as follows：
A kind of reciprocally swinging mechanism on spring fatigue tester, including two crank rocker machines being symmetrical set
Structure；
The crank and rocker mechanism includes crank and rocking bar, and the crank is provided with chute, and being provided with the chute can be in cunning
Sliding block in groove slidably and the leading screw freely rotated in chute, the slide block set constitutes screw thread pair on leading screw, described
Sliding block is hinged with one end of rocking bar, and two other ends of rocking bar are connected by rod hinge connection；
The every bottom of leading screw is removably connected with a connecting shaft being vertically arranged, every connecting shaft bottom difference respectively
A driven wheel of differential is provided with, drive bevel gear of the driven wheel of differential respectively with horizontally disposed rotating shaft two ends is mutually nibbled
Close, worm gear is additionally provided with the rotating shaft, the worm gear is meshed with the worm shaft of handwheel.
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 preceding surface of the rocking bar is provided with the chute, and rear surface is fixedly connected with motor-driven power transmission shaft,
The power transmission shaft is orthogonal with the rear surface.
The beneficial effects of the utility model：The utility model is using two crank and rocker mechanisms being arranged in pairs come instead of existing
The motor pattern of some cam driven connecting rods, not only makes simpler in the realization of structure function, and two crank rocker machines
Structure is symmetrical arranged can effectively improve its reliability, and mechanism's stress is more uniformly distributed.On the other hand, there is provided by screw slider
Between screw thread pair, the transmission mechanism that is constituted of worm couple and taper gear pair, to the height and position of crank and rocker mechanism
Lift adjustment is carried out, is adjusted with the height and position for realizing connecting rod, so as to adjust the amplitude of spring fatigue test.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is to save a structural representation for crank and rocker mechanism.
Fig. 3 is the structural representation that leading screw is connected by chuck.
Fig. 4 is jacket structured schematic diagram.
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 Fig. 1-2, the reciprocally swinging mechanism on a kind of spring fatigue tester, with existing spring fatigue tester
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 toward physical pendulum
It is dynamic.Reciprocally swinging mechanism on the spring fatigue tester includes two crank and rocker mechanisms being symmetrical set, the song
Handle endplay device includes motor-driven crank 14 and rocking bar 11, and the crank 14 is provided with chute, and the chute is in crank 14
The groove that surface opens up, groove structure can make the forms such as common dovetail groove or T-slot in machine tool guideway.In the cunning
Be provided with groove can be in chute slidably sliding block 10, leading screw 9 is arranged in chute along chute direction, makes the leading screw 9 can be in cunning
Freely rotated in groove.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 nut
One part moves back and forth vertically along leading screw 9, so as to realize the lifting of rocking bar 11.Above-mentioned sliding block 10 passes through with one end of rocking bar 11
Deep groove ball bearing is hinged, and two other ends of rocking bar 11 are hinged and connected by connecting rod 13, so that 13 reciprocally swingings of drivening rod
And the height and position of 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.
Operation principle：Handwheel 5 is being rotated as needed using preceding, the taper gear pair 6 at the two ends of rotating shaft 2 is moved, and is being driven
Leading screw 9 is rotated, so that the up/down of sliding block 10 is moved, by the lifting of the position of connecting rod 13, due to the direct or indirect phase of connecting rod 13 and spring
Even, such as connecting rod 13 is connected by a horizontal cross plate, and spring one end connects with horizontal cross plate, the water of its other end and another fixation
Flat transverse slat connects, the spacing between two horizontal cross plates of regulation, just the experiment amplitude of adjustable springs.Certainly, in practical application, root
Concrete structure according to spring fatigue tester is different, can have different adaptability structure designs to coordinate the utility model, this
Art personnel only need to as the case may be make by relative adaptability is designed and apply the utility model well.Additionally,
In addition to being applied to spring fatigue tester, apply also for other needs crank and rocker mechanism to realize function to the utility model
Equipment on, it is using being not limited thereto.
Further, as shown in Figures 3 and 4, 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 the figures 1 and 2, the preceding surface of the rocking bar 14 is provided with the chute, rear surface with it is motor-driven
Power transmission shaft is fixedly connected, and surface is orthogonal after the power transmission shaft and rocking bar 14；Power transmission shaft is by belt wheel 12, belt and motor
Output pulley on output shaft is connected, and motor is outputted power on crank 14 with most short driving-chain, and saving energy consumption makes whole
Body structure is more simple compact.
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. the reciprocally swinging mechanism on a kind of spring fatigue tester, it is characterised in that including two songs being symmetrical set
Handle endplay device；
The crank and rocker mechanism includes crank and rocking bar, and the crank is provided with chute, and being provided with the chute can be in chute
Sliding block slidably and the leading screw freely rotated in chute, the slide block set constitute screw thread pair, the sliding block on leading screw
One end with rocking bar is hinged, and two other ends of rocking bar are connected by rod hinge connection；
The every bottom of leading screw is removably connected with a connecting shaft being vertically arranged respectively, and every connecting shaft bottom is respectively equipped with
One driven wheel of differential, drive bevel gear of the driven wheel of differential respectively with horizontally disposed rotating shaft two ends is meshed,
Worm gear is additionally provided with the rotating shaft, the worm gear is meshed with the worm shaft of handwheel.
2. reciprocally swinging mechanism according to claim 1 on spring fatigue tester, it is characterised in that：The bottom of the leading screw
Hold by being fixed on the chuck on connecting shaft top and connecting shaft releasable connection, the chuck by be provided with insertion breach cylindrical sleeve and
The folder ear of the two panels tabular being connected with its breach end is constituted, the leading screw bottom that two folder ears are bolted and will stretch into chuck
Grips are fixed.
3. reciprocally swinging mechanism according to claim 1 on spring fatigue tester, it is characterised in that：Table before the rocking bar
Face is provided with the chute, and rear surface is fixedly connected with motor-driven power transmission shaft, and the power transmission shaft hangs down mutually with the rear surface
Directly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621401631.5U CN206281724U (en) | 2016-12-20 | 2016-12-20 | A kind of reciprocally swinging mechanism on spring fatigue tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621401631.5U CN206281724U (en) | 2016-12-20 | 2016-12-20 | A kind of reciprocally swinging mechanism on spring fatigue tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206281724U true CN206281724U (en) | 2017-06-27 |
Family
ID=59074059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621401631.5U Expired - Fee Related CN206281724U (en) | 2016-12-20 | 2016-12-20 | A kind of reciprocally swinging mechanism on spring fatigue tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206281724U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108553252A (en) * | 2017-12-27 | 2018-09-21 | 李锋 | A kind of diagnosis and treatment bench of paediatrics |
| CN109374453A (en) * | 2018-11-30 | 2019-02-22 | 温州市龙湾海伦五金厂 | Lockset torsional fatigue degree testing machine |
| CN114199541A (en) * | 2021-12-09 | 2022-03-18 | 陕西理工大学 | Torsional spring fatigue resistance test bench |
-
2016
- 2016-12-20 CN CN201621401631.5U patent/CN206281724U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108553252A (en) * | 2017-12-27 | 2018-09-21 | 李锋 | A kind of diagnosis and treatment bench of paediatrics |
| CN109374453A (en) * | 2018-11-30 | 2019-02-22 | 温州市龙湾海伦五金厂 | Lockset torsional fatigue degree testing machine |
| CN109374453B (en) * | 2018-11-30 | 2021-01-22 | 温州市龙湾海伦五金厂 | Lock torsion fatigue testing machine |
| CN114199541A (en) * | 2021-12-09 | 2022-03-18 | 陕西理工大学 | Torsional spring fatigue resistance test bench |
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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 |