CN103604590A - Strength and fatigue test device of large high pressure spring - Google Patents
Strength and fatigue test device of large high pressure spring Download PDFInfo
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- CN103604590A CN103604590A CN201310549421.5A CN201310549421A CN103604590A CN 103604590 A CN103604590 A CN 103604590A CN 201310549421 A CN201310549421 A CN 201310549421A CN 103604590 A CN103604590 A CN 103604590A
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Abstract
The invention discloses a strength and fatigue test device of a large high pressure spring. The device comprises a bottom seat, columns, a main vibration plate and an upper seat, wherein the columns are 4 cylinders, the lower ends of the cylinders are in thread connection with the bottom seat, the upper ends of the cylinders are connected with the upper seat, the middle parts of the cylinders are in sliding cooperation with the main vibration plate, two sides of the main vibration plate are provided with connection shafts, an oil cylinder drives the main vibration plate to slide on the columns through the connection shafts, the center of the bottom seat is provided with a through hole, guide rails are uniformly distributed along the periphery of the through hole, the guide rails are equipped with positioning and fixing sliding blocks used for fixing a tested spring, and the bottom seat is also connected with a shaft which is equipped with an upper sliding plate, a lower sliding plate, an upper contact and a lower contact so as to change the movement journey of the main vibration plate. Since the spring is guided, the verticality of the spring in an experiment is good, the spring is stable in the experiment, the data is reliable, and due to the effect of guidance, the security of the experiment in the whole process is good.
Description
Technical field
The invention belongs to hydraulic pressure manufacture and machinery manufacturing technology field, relate to a kind of hydraulic pressure of Electric automatic control and the device of mechanical linkage, relate in particular to a kind of intensity and fatigue experimental device of Large-scale High-Pressure spring.
Background technology
Intensity and torture test for Large-scale High-Pressure spring are focus and difficult point, at present, only have strength testing facility and the fatigue experiment equipment of middle-size and small-size spring on market, and strength test and fatigue experiment separately carry out.That is to say that strength test and fatigue experiment are to rely on two testing equipments.
The strength test of spring: process of the test just applies acting force to both ends of the spring, this equipment general tree spring leads, and spring stability is bad, easy deflection, for longer spring, in test, likely cause spring to fly out, personnel's safety is had to certain threat.
The torture test of spring: a kind of is to adopt the mode of offset cam machinery that spring is moved back and forth, and another kind is to adopt the form of electromagnetism that spring is moved back and forth.The shortcoming of these two kinds of mode of motion maximums is: spring is applied to power smaller, to high-intensity large spring, cannot test, due to high-strength spring production requirement, be badly in need of a kind of test spring intensity of 5 tons～50 ton forces and tired equipment.
Summary of the invention
The defect or the deficiency that for above-mentioned prior art, exist, the object of the invention is to, and a kind of intensity and fatigue experimental device that is applicable to the Large-scale High-Pressure spring of 5 tons～50 ton forces is provided.
In order to realize above-mentioned task, the present invention takes following technical solution:
The intensity of Large-scale High-Pressure spring and a fatigue experimental device, is characterized in that, comprises base, column, main vibration plate and the seat of honour; Wherein:
Described column is 4, and the lower end of column is connected with whorl of base, and upper end is connected with the seat of honour, and middle part and main vibration plate are slidably matched;
Described main vibration plate is rectangular parallelepiped, and the both sides of this rectangular parallelepiped are provided with coupling shaft, and described coupling shaft and the seat of honour are fixed, and is connected with the oil cylinder of top, the seat of honour, and oil cylinder drives main vibration plate to slide on column by coupling shaft;
Porose at main vibration plate middle part, the axis of guide is installed in hole, match with tested spring in this axis of guide lower end, and upper end is connected with coupling shaft; Axis of guide surrounding is equipped with outer cover; On outer cover, be connected with oil cylinder, oil cylinder drives the axis of guide to move by coupling shaft;
There is a through hole centre of described base, and the diameter of this through hole allows the axis of guide to pass through; Along through hole surrounding, be evenly distributed with 6 guide rails, location is installed fixing sliding fast on each guide rail, for fixing by test spring; On base, be also connected with an axle, upper slide and lower skateboard are housed on axle, on upper slide and lower skateboard, be separately installed with upper contact head and lower contact; Upper and lower slide plate can be adjusted position, to change the movement travel of main vibration plate.
The intensity of Large-scale High-Pressure spring of the present invention and fatigue experimental device, be a kind of device of semi-automation, has certain high efficiency; Due to spring has been adopted to guiding, verticality is better in test to make spring, and spring is stable in test, and data are reliable; Due to the effect of guiding, test in whole process security good; Adopted hydraulic pressure, noise is little.
Accompanying drawing explanation
Fig. 1 is Large-scale High-Pressure spring strength of the present invention and fatigue experimental device front view.
Fig. 2 is the A-A cut-open view of Fig. 1.
Fig. 3 is the B-B view of Fig. 1.
Fig. 4 is the C enlarged drawing of Fig. 1.
Fig. 5 is the hydraulic schematic diagram of device.
Fig. 6 is the electrical schematic of device.
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Embodiment
Applicant's design main thought is: adopt mechanical part and hydraulic system mutually to coordinate moving mode, adopt big-flow high-pressure three-cylinder plunger pump, the piston of controlling promotion oil cylinder by surplus valve carries out rectilinear motion or to-and-fro movement, piston is threaded with mechanical part, convert hydraulic energy to mechanical energy, by certain program, be applied on underproof spring, reach an equipment and complete the strength test of spring and torture test.
Referring to accompanying drawing 1～6, the present embodiment provides a kind of intensity and fatigue experimental device of Large-scale High-Pressure spring, comprises base 1, column 2, main vibration plate 3, the seat of honour 4; Wherein:
Described column 2 is 4 right cylinders, and cylindrical lower end is threaded with base 1, and upper end is connected with the seat of honour 4, and middle part and main vibration plate 3 are slidably matched;
Described main vibration plate 3 is rectangular parallelepiped, and the both sides of this rectangular parallelepiped are provided with coupling shaft 25, and described coupling shaft 25 is fixing with the seat of honour 4, and with the oil cylinder (5-1 of 4 tops, the seat of honour, 5-2) be connected, oil cylinder (5-1,5-2) drives main vibration plate 3 to slide on column 2 by coupling shaft 25;
Porose at main vibration plate 3 middle parts, the axis of guide 7 is installed in hole, match with tested spring in these axis of guide 7 lower ends, and upper end is connected with coupling shaft 6; The axis of guide 7 surroundings are equipped with outer cover 26; On outer cover 26, be connected with oil cylinder 5-3, oil cylinder 5-3 drives the axis of guide 7 motions (in motion process, outer cover 26 can freely pass through reserved hole, 4 centers, the seat of honour together with oil cylinder 5-3) by coupling shaft 6.
There is a through hole centre of base 1, and the diameter of this through hole allows the axis of guide 7 to pass through; Along through hole surrounding, be evenly distributed with 6 guide rails 24, location is installed fixing sliding fast 22 on each guide rail 24, for fixing by test spring;
In base 1 one sides, be also connected with an axle 8, upper slide 10 and lower skateboard 12 are housed on axle 8, on upper slide 10 and lower skateboard 12, be separately installed with upper contact head 9 and lower contact 14; Upper and lower slide plate (10,11) can be adjusted position, to change the movement travel of main vibration plate 3.
In the present embodiment, select one of big-flow high-pressure three cylinder radial plunger pump, p=31mp, L=25ml/r, n=1500r/min; Each oil cylinder maximum is paid 25 tons of power, and in test, maximum is paid 50 tons of Li Keda; It mainly includes surplus valve, 2 of solenoid directional control valves, and 3 of oil cylinders (5-1,5-2 and 5-3), connect in sequence with high-pressure oil pipe.
The electronic component of electric control circuit comprises: upper and lower contact (9,14), impulse meter, numerical-control automatic control device, hand switch control desk, solenoid directional control valve etc.Upper and lower contact (9,14) be connected with impulse meter, impulse meter connects respectively numerical control self-actuated controller and hand switch control desk, two solenoid directional control valves are connected with hand switch control desk with numerical-control automatic control device respectively, and numerical-control automatic control device and hand switch control desk are by Power supply (Fig. 6).
The concrete process of implementing is:
On the right of base 1, be also provided with an axle 8, this axle 8 is threaded with base 1; For the upper lower skateboard (10,12) with contact is installed.
The seat of honour 4 is rectangular parallelepipeds of 1400mm * 1200mm * 100mm, and 4 belows, the seat of honour are connected with pad 16 by nut 15 with the screw thread on 4 columns 2;
The diameter of 4 columns 2 is the elongated cylinder of ф 100mm, requires assembling verticality 0.1; Degree of being parallel to each other 0.1.
1, on main vibration plate 3 along the axis of guide 7 and outer cover 26 cross central lines, avoid the correct position of outer cover 26 outers and offer threaded hole;
2, with screw 19 and plate washer 20, be connected to the head of coupling shaft 25;
3, the coupling shaft with plate washer 20 25 is screwed in the threaded hole on main vibration plate 3, the threaded hole other end blocks with screw plug 21.
Two oil cylinders (5-1,5-2) are connected with the seat of honour 4 with the form of ring flange, and fixing with 12 screws 17 and pad 18, the piston rod of two oil cylinders (5-1,5-2) is connected with the form of coupling shaft 25 with screw thread.
Oil cylinder 5-3 is connected with the outer cover 26 on main vibration plate 3 with the form of ring flange equally, with screw and pad, fix, piston rod on oil cylinder 5-3 is connected with the form of coupling shaft 6 with screw thread, and the other end of coupling shaft 6 is connected with the axis of guide 7 on main vibration plate 3, dead with screw.
The axis of guide 7 be right cylinder, on the step of upper end, have a ring groove.The axis of guide 7 can be according to being changed by the diameter of test spring.
Adopt intensity and the fatigue experimental device of Large-scale High-Pressure spring of the present invention, strength test to spring is completed by manual operation, the torture test of spring is mainly completed by automatic control, the to-and-fro movement of exerting pressure and reciprocal number of times feed back to impulse meter, counter is delivered to numerical-control automatic control device after processing, controller is program comparision and the processing with artificial input by the information of transmitting, and sends the work that solenoid directional control valve is controlled in instruction, achieves the goal.
Method of work and step:
One, the strength test of spring:
1, opening power, big-flow high-pressure three cylinder radial plunger pumps rotate, remove upper contact head after 9,5 minutes, at hand switch consing (accompanying drawing 5), make solenoid valve commutation 1 work, oil cylinder (5-1,5-2) lower end oil-feed, piston rod moves up, by coupling shaft 25, main vibration plate 3 is moved up, move to suitable position it is stopped; Equally, make the logical oil of oil cylinder 5-3, the piston rod of oil cylinder 5-3 drives coupling shaft 6 to move up, and moves to suitable position it is stopped;
2, select the suitable axis of guide 7, the gap between itself and tested spring endoporus is 1mm, the axis of guide 7 is arranged on coupling shaft 6, by screws tighten;
3, the middle part at base 1 by tested spring fitting, with locating fixedly slide block 22 location, tightens up;
4, operation hand switch control desk, makes oil cylinder (5-1,5-2) upper end oil-feed, and main vibration plate (3) is moved down, and touches tested spring upper end and stops;
5, operation hand switch control desk, makes oil cylinder 5-3 upper end oil-feed, and piston rod moves down, and by coupling shaft 6, the axis of guide 7 is moved down, and moves to spring endoporus proper site and stops;
6, operation hand switch control desk, oil cylinder (5-1,5-2) continues to move downward, and stops (by manometric pressure, can converse the power that applies to spring), the deflection of measuring spring when pressure reaches the intensity level of spring;
7, operation hand switch control desk, oil cylinder (5-1,5-2) moves upward, and the proper site that moves to top stops;
8, take out spring, operation hand switch control desk, oil cylinder (5-1,5-2) moves downward, and moves to upper/lower positions, closes oil pump power supply;
9, off-test.
Two, the torture test of spring:
6, adjust upper contact head 9 positions, it contact with baffle plate 11, make upper contact head 9 in on-position, adjustment time contact 14 positions, the thickness that the distance of itself and upper contact head 9 deducts baffle plate 11 equals spring amplitude in test, tightens up after adjusting position with screw 13; Can suitably adjust in test;
7, by the frequency of test spring and global vibration number of times input pulse counter and numerical-control automatic control device;
8, start numerical-control automatic control device switch, main vibration plate 3 is under the effect of oil cylinder (5-1,5-2), and in above-below direction to-and-fro movement, compacting spring vibrates at above-below direction;
Principle of work is: during beginning, upper contact head 9 is in on-position, and impulse meter work, counts, and signal is passed to numerical-control automatic control device, numerical-control automatic control device sends instruction, and solenoid directional control valve 1 commutates, oil cylinder (5-1,5-2) upper end oil-feed, lower end is fuel-displaced, drives main vibration plate 3 to move downward, and block 11 is in company with motion; When contacting with lower contact 14, lower contact 14 is in on-position, impulse meter passes to numerical-control automatic control device by signal after processing, numerical-control automatic control device sends instruction, and solenoid directional control valve 1 commutates, oil cylinder (5-1,5-2) lower end oil-feed, upper end is fuel-displaced, drives main vibration plate 3 to move upward, and block 11 is in company with motion; When block 11 contacts with upper contact head 9, upper contact head 9, in on-position, restarts circulation like this;
9, when to-and-fro movement reaches global vibration number of times, impulse meter passes to numerical-control automatic control device by signal, and numerical-control automatic control device sends instruction, and solenoid directional control valve 1 commutates to neutral position, disconnects the oil circuit of oil cylinder (5-1,5-2), main vibration plate 3 stop motions;
10, hand switch consing, oil cylinder (5-1,5-2) moves upward, and the proper site that moves to top stops;
11, take out tested spring, hand switch consing, oil cylinder (5-1,5-2) moves downward, and moves to upper/lower positions, closes oil pump power supply;
12, off-test.
Test example:
Embodiment 1: Xi electricity Xi Ling company product, 3 of testpieces.
Spring material: 60Si2CrVA
Decrement: 174mm; Hz=6 time/min
N > 10000 times, without permanent deformation.
Pressure meets GB1239.4 standard code after 24 hours; Reach requirement, and through practice test.
Claims (3)
1. the intensity of Large-scale High-Pressure spring and a fatigue experimental device, is characterized in that, comprises base (1), column (2), main vibration plate (3), the seat of honour (4); Wherein:
Described column (2) is 4, and column (2) lower end is threaded with base (1), and upper end is connected with the seat of honour (4), and middle part and main vibration plate (3) are slidably matched;
Described main vibration plate (3) is rectangular parallelepiped, the both sides of this rectangular parallelepiped are provided with coupling shaft (25), described coupling shaft (25) is fixing with the seat of honour (4), and with the seat of honour (4) top oil cylinder (5-1,5-2) be connected, oil cylinder (5-1,5-2) drives main vibration plate (3) in the upper slip of column (2) by coupling shaft (25);
Porose at main vibration plate (3) middle part, the axis of guide (7) is installed in hole, match with tested spring in this axis of guide (7) lower end, and upper end is connected with coupling shaft (6); The axis of guide (7) surrounding is equipped with outer cover (26); On outer cover (26), be connected with oil cylinder (5-3), oil cylinder (5-3) drives the axis of guide (7) motion by coupling shaft (6);
There is a through hole centre of described base (1), and the diameter of this through hole allows the axis of guide (7) to pass through; Along through hole surrounding, be evenly distributed with 6 guide rails (24), location fixing sliding fast (22) is installed, for fixing by test spring on each guide rail (24); On base (1), be also connected with an axle (8), upper slide (10) and lower skateboard (12) are housed on axle (8), on upper slide (10) and lower skateboard (12), be separately installed with upper contact head (9) and lower contact (14); Upper and lower slide plate (10,11) can be adjusted position, to change the movement travel of main vibration plate (3).
2. the intensity of Large-scale High-Pressure spring as claimed in claim 1 and fatigue experimental device, is characterized in that, it is elongated cylinder that described column (2) is 4.
3. the intensity of Large-scale High-Pressure spring as claimed in claim 1 and fatigue experimental device, is characterized in that, the described axis of guide (7) is right cylinder, on the step circle of upper end, has a ring groove.
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| CN201310549421.5A CN103604590B (en) | 2013-11-07 | 2013-11-07 | A kind of intensity of Large-scale High-Pressure spring and fatigue experimental device |
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| CN201310549421.5A CN103604590B (en) | 2013-11-07 | 2013-11-07 | A kind of intensity of Large-scale High-Pressure spring and fatigue experimental device |
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| CN103604590B CN103604590B (en) | 2016-05-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727389A (en) * | 2017-12-01 | 2018-02-23 | 佛山市子活力弹簧有限公司 | A kind of spring experimental rig |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727389A (en) * | 2017-12-01 | 2018-02-23 | 佛山市子活力弹簧有限公司 | A kind of spring experimental rig |
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| CN103604590B (en) | 2016-05-25 |
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Effective date of registration: 20200409 Address after: 710300 Zhenxing North Road, Qingyi District, Xi'an City, Shaanxi Province Patentee after: Xi'an Wanjin precision spring Co., Ltd Address before: 710016, ring village, Lianhu District, Lianhu District, Shaanxi, Xi'an 81 Patentee before: XI'AN LIANHU SPRING ELECTRICAL APPLIANCE FACTORY |