CN205580899U - Railway bullet strip fatigue testing machine who has pretightning force - Google Patents
Railway bullet strip fatigue testing machine who has pretightning force Download PDFInfo
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- CN205580899U CN205580899U CN201620395627.6U CN201620395627U CN205580899U CN 205580899 U CN205580899 U CN 205580899U CN 201620395627 U CN201620395627 U CN 201620395627U CN 205580899 U CN205580899 U CN 205580899U
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- 238000009661 fatigue test Methods 0.000 title abstract description 6
- 230000008878 coupling Effects 0.000 claims abstract description 9
- 238000010168 coupling process Methods 0.000 claims abstract description 9
- 238000005859 coupling reaction Methods 0.000 claims abstract description 9
- 230000009467 reduction Effects 0.000 claims description 14
- 238000005096 rolling process Methods 0.000 claims description 14
- 238000004826 seaming Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000011160 research Methods 0.000 abstract description 3
- 238000004088 simulation Methods 0.000 abstract description 3
- 239000003638 chemical reducing agent Substances 0.000 abstract 2
- 239000000725 suspension Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model discloses a railway bullet strip fatigue testing machine who has pretightning force, include: small motor, second grade circular cone cylindrical gear reducer, screw rod, pull rod, middle cross beam, lead screw, go up backup pad, bottom suspension fagging, go up the pressure head, depression bar, holding down plate, linear bearing, front shroud, back shroud, antifriction bearing, bearing, big eccentric wheel, little eccentric wheel, main shaft, box, conveyer belt, conveying band pulley, big motor, big motor bottom plate, hinge, shaft coupling, the one end of depression bar pass the bearing frame with linear bearing with antifriction bearing contacts, the other end of depression bar with lower pressure plate connected, the one end of lead screw with second grade circular cone cylindrical gear reducer connects, the utility model provides a railway bullet strip fatigue testing machine who has pretightning force can realize under the pretightning force condition, carries out fatigue test research to railway bullet strip, the current operating mode of true simulation, and the structure is reliable, and the experimental data is accurate, advantage such as with low costs.
Description
Technical field
This utility model relates to the fatigue test of railway elastic bar, is specifically related to a kind of railway elastic bar fatigue machine having pretightning force.
Background technology
In recent years, for adapting to the needs of the high-speed railway of fast development, China successively have developed various new elastic bar fastener system.For band spring type system, in general, when using different buckle presses to carry out static(al) installation, spring each position stress is to meet to require.But owing to, in train travelling process, rail system creates load complicated and changeable, so that spring bears the effect of the alternate stresses such as bending long-term, periodic and torsion, thus cause a series of fatigue problem of spring system.Wherein spring is the most increasingly subject to people's attention as the important component part of fastener system, the research to its fatigue behaviour.
Summary of the invention
This utility model provides a kind of railway elastic bar fatigue machine having pretightning force, can realize in the case of pretightning force, railway elastic bar is carried out Fatigue Test Research, the existing operating mode of true simulation.This testing machine design structure is reliable, and experimental data is accurate, low cost and other advantages.
For reaching above-mentioned purpose, the technical scheme that this utility model is used is as follows:
A kind of railway elastic bar fatigue machine having pretightning force, including: small machine, two grades of tapered cylindrical gear reduction units, screw rod, pull bar, middle cross beam, leading screw, upper backup pad, lower supporting plate, seaming chuck, depression bar, lower platen, linear bearing, front shroud, back shroud, rolling bearing, bearing, large eccentricity wheel, small eccentricity wheel, main shaft, casing, conveyer belt, transmission belt wheel, big motor, big electric baseboard, hinge, shaft couplings；One end of described depression bar contacts through bearing block and described linear bearing with described rolling bearing, and the other end of described depression bar is connected with described lower platen；Described rolling bearing coordinates with described large eccentricity wheel；Described large eccentricity wheel is connected on described main shaft by flat key with described small eccentricity wheel；Described bearing is installed at described main shaft two ends；Described main shaft is connected with the described transmission belt wheel on described big motor by described conveyer belt；Described big motor is arranged on described big electric baseboard, and described big electric baseboard is connected with described casing by described hinge；Described seaming chuck is connected with described leading screw；One end of described leading screw is connected with described two grades of tapered cylindrical gear reduction units；Described two grades of tapered cylindrical gear reduction units are connected with described small machine by described shaft coupling；Described screw rod is connected with wherein the middle cross beam and described upper backup pad；Described small machine is fixed on described upper backup pad；Described pull bar connects between described upper backup pad and described lower supporting plate.
Further, described depression bar passes described linear bearing, and described linear bearing is installed in the bearing block of described lower supporting plate.
Further, described large eccentricity wheel is connected by gear bonding with described small eccentricity wheel, and one end of described large eccentricity wheel coordinates with the inner ring of described rolling bearing；The center of circle, the outer ring C of described large eccentricity wheel1With its inner ring center of circle C2There is eccentric throw, the center of circle, the outer ring C of described small eccentricity wheel1With its inner ring center of circle C2There is eccentric throw, described large eccentricity wheel is all had keyway with described small eccentricity wheel and is connected with described main shaft by key；Have strip slotted eye on described large eccentricity wheel and realize adjustable with the rotation of described small eccentricity wheel.
Further, described bearing is fixed on described casing by bearing block, and described leading screw overcoat is bolted to connection with wherein the middle cross beam, it is achieved the seriality that moves up and down of described leading screw regulates.
Further, described two grades of tapered cylindrical gear reduction units are connected with described small machine and described leading screw, change the direction of moment, realize horizontal and vertical motion conversion simultaneously.
A kind of railway elastic bar fatigue machine having pretightning force of this utility model, it has the beneficial effects that:
(1) motion of leading screw is driven by decelerator by small machine, it is achieved to the pretightning force continuously adjustabe under different experimental conditions；
(2) structure of large and small eccentric, it is achieved the height required by the spring of different model is carried out regulation in various degree；
(3) linear bearing the most effectively ensures that depression bar, in vertical motion, the most effectively reduces the friction of charger, increases the service life.
Accompanying drawing explanation
A kind of railway elastic bar fatigue machine internal structure schematic diagram having pretightning force of Fig. 1: this utility model；
The internal structure side view of a kind of railway elastic bar fatigue machine having pretightning force of Fig. 2: this utility model；
The structural representation of two grades of tapered cylindrical gear reduction units of Fig. 3: this utility model；
The structure chart of the large and small eccentric of Fig. 4: this utility model；
The side view of the large and small eccentric of Fig. 5: this utility model.
In figure: 2-small machine, bis-grades of tapered cylindrical gear reduction units of 1-, 25-shaft coupling, 3-screw rod, 10-pull bar, 12-middle cross beam, 11-leading screw, 26-upper backup pad, 6-lower supporting plate, 4-seaming chuck, 15-depression bar, 5-lower platen, 13-linear bearing, 14-linear bearing, 16-front shroud, 27-back shroud, 7-rolling bearing, 8-bearing, 17-large eccentricity wheel, 18-small eccentricity wheel, 19-main shaft, 20-casing, 21-conveyer belt, 22-transmit belt wheel, the big motor of 23-, the big electric baseboard of 9-, 24-hinge.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described.
As shown in Figure 1, 2, a kind of railway elastic bar fatigue machine having pretightning force, including: 2, two grades of tapered cylindrical gear reduction units 1 of small machine, shaft coupling 25, screw rod 3, pull bar 10, middle cross beam 12, leading screw 11, upper backup pad 26, lower supporting plate 6, seaming chuck 4, depression bar 15, lower platen 5, linear bearing 14, front shroud 16, back shroud 27, rolling bearing 7, bearing 8, large eccentricity wheel 17, small eccentricity wheel 18, main shaft 19, casing 20, conveyer belt 21, transmission belt wheel 22, big motor 23, big electric baseboard 9, hinge 24；One end of depression bar 15 contacts through bearing block and linear bearing 14 with rolling bearing 7, and the other end 13 is connected with lower platen 5；Front shroud 16 is connected with back shroud 27；Rolling bearing 7 coordinates with large eccentricity wheel 17；Large eccentricity wheel 17 is connected on main shaft 19 by being bonded with small eccentricity wheel 18；Bearing 8 is installed at main shaft 19 two ends；Main shaft 19 is connected with the transmission belt wheel 22 on big motor 23 by conveyer belt 21；Big motor 23 is installed on the big motor base 9 connected by hinge 24；Big motor base 9 is fixed on bottom casing 20；Seaming chuck 4 is connected with leading screw 11；One end of leading screw 11 is connected by two grades of tapered cylindrical gear reduction units 1；Decelerator 1 is connected with small machine 2 by shaft coupling 25；Screw rod 3 is connected with middle cross beam 12 and upper backup pad 26；Small machine 2 is fixed on upper backup pad 26；Pull bar 10 connects between upper backup pad 26 and lower supporting plate 6；Depression bar 16 is through linear bearing 14, and linear bearing 14 is installed in the bearing block of lower supporting plate 6；Bearing 8 on described main shaft 19 is fixed on casing 20 by bearing block；Described leading screw 11 overcoat is bolted to connection with middle cross beam 12, and can realize leading screw moves up and down seriality regulation.
As it is shown on figure 3, two grades of tapered cylindrical gear reduction units 1 are connected with small machine 2 and leading screw 11, export after being delivered to roller gear by the Bevel Gear Drive of internal structure, change the direction of moment, realize horizontal and vertical motion conversion simultaneously.
As shown in Figure 4,5, large eccentricity wheel 17 is connected by gear bonding with small eccentricity wheel 18, and one end of large eccentricity wheel 17 coordinates with the inner ring of rolling bearing 7；The center of circle, the outer ring C of described large eccentricity wheel 171With its inner ring center of circle C2There is eccentric throw, the center of circle, the outer ring C of described small eccentricity wheel 181With its inner ring center of circle C2There is eccentric throw, described large eccentricity wheel 17 is all had keyway with described small eccentricity wheel 18 and is connected with described main shaft 19 by key；Have strip slotted eye on large eccentricity wheel 17 and realize adjustable with rotating continuously of small eccentricity wheel 18.
As shown in Figure 1, 2, the using method of a kind of railway elastic bar fatigue machine having pretightning force of this utility model specifically comprises the following steps that and is put in by spring on lower platen 5, small machine 2 drives two grades of tapered cylindrical gear reduction units 1 to realize the rotation to leading screw 11 by shaft coupling 25, leading screw 11 is by providing pretightning force, the size of pretightning force, by external control system, small machine 2 is carried out continuously adjustable output press strip the effect of seaming chuck 4；Big motor 23 transfers power on main shaft 19 by conveyer belt 21, large eccentricity wheel 17 rotates under the effect of main shaft 19 with small eccentricity wheel 18, thus drive pumping of rolling bearing 7, it is achieved and to the extruding up and down of spring on lower platen 5, true simulation spring change under actual condition；By the external control system test to specific times, draw Fatigue Property Curve；The test number (TN) carried out when simultaneously measuring spring generation fatigue failure.
Claims (5)
1. the railway elastic bar fatigue machine having pretightning force, it is characterized in that: including: small machine (2), two grades of tapered cylindrical gear reduction units (1), screw rod (3), pull bar (10), middle cross beam (12), leading screw (11), upper backup pad (26), lower supporting plate (6), seaming chuck (4), depression bar (15), lower platen (5), linear bearing (14), front shroud (16), back shroud (27), rolling bearing (7), bearing (8), large eccentricity wheel (17), small eccentricity wheel (18), main shaft (19), casing (20), conveyer belt (21), transmit belt wheel (22), big motor (23), big electric baseboard (9), hinge (24), shaft coupling (25)；One end of described depression bar (15) contacts through bearing block and described linear bearing (14) with described rolling bearing (7), and the other end of described depression bar (15) is connected with described lower platen (5)；Described rolling bearing (7) coordinates with described large eccentricity wheel (17)；Described large eccentricity wheel (17) is connected on described main shaft (19) by flat key with described small eccentricity wheel (18)；Described bearing (8) is installed at described main shaft (19) two ends；Described main shaft (19) is connected with the described transmission belt wheel (22) on described big motor (23) by described conveyer belt (21)；Described big motor (23) is arranged on described big electric baseboard (9), and described big electric baseboard (9) is connected with described casing (20) by described hinge (24)；Described seaming chuck (4) is connected with described leading screw (11)；One end of described leading screw (11) is connected with described two grades of tapered cylindrical gear reduction units (1)；Described two grades of tapered cylindrical gear reduction units (1) are connected with described small machine (2) by described shaft coupling (25)；Described screw rod (3) is connected with wherein the middle cross beam (12) and described upper backup pad (26)；Described small machine (2) is fixed on described upper backup pad (26)；Described pull bar (10) connects between described upper backup pad (26) and described lower supporting plate (6).
A kind of railway elastic bar fatigue machine having pretightning force, it is characterized in that, described depression bar (15) passes described linear bearing (14), and described linear bearing (14) is installed in the bearing block of described lower supporting plate (6).
A kind of railway elastic bar fatigue machine having pretightning force, it is characterized in that, described large eccentricity wheel (17) is connected by gear bonding with described small eccentricity wheel (18), and one end of described large eccentricity wheel (17) coordinates with the inner ring of described rolling bearing (7)；The center of circle, the outer ring C of described large eccentricity wheel (17)1With its inner ring center of circle C2There is eccentric throw, the center of circle, the outer ring C of described small eccentricity wheel (18)1With its inner ring center of circle C2There is eccentric throw, described large eccentricity wheel (17) is all had keyway with described small eccentricity wheel (18) and is connected with described main shaft (19) by key；Have strip slotted eye on described large eccentricity wheel (17) and realize adjustable with the rotation of described small eccentricity wheel (18).
A kind of railway elastic bar fatigue machine having pretightning force, it is characterized in that, described bearing (8) is fixed on described casing (20) by bearing block, described leading screw (11) overcoat is bolted to connection with wherein the middle cross beam (12), it is achieved the seriality that moves up and down of described leading screw (11) regulates.
A kind of railway elastic bar fatigue machine having pretightning force, it is characterized in that, described two grades of tapered cylindrical gear reduction units (1) are connected with described small machine (2) and described leading screw (11), change the direction of moment, realize horizontal and vertical motion conversion simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620395627.6U CN205580899U (en) | 2016-05-04 | 2016-05-04 | Railway bullet strip fatigue testing machine who has pretightning force |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620395627.6U CN205580899U (en) | 2016-05-04 | 2016-05-04 | Railway bullet strip fatigue testing machine who has pretightning force |
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| CN205580899U true CN205580899U (en) | 2016-09-14 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108106931A (en) * | 2018-01-17 | 2018-06-01 | 昆明理工大学 | A kind of test fixture for ω structure railway elastic bars |
| CN109708859A (en) * | 2018-12-16 | 2019-05-03 | 安徽省巢湖铸造厂有限责任公司 | Adjustable rail clip fatigue experimental device |
| CN109799150A (en) * | 2019-02-19 | 2019-05-24 | 北京建筑大学 | Railway I type spring high-cycle fatigue test method |
| CN110672448A (en) * | 2019-10-24 | 2020-01-10 | 成都西交轨道交通技术服务有限公司 | Track shock attenuation backing plate fatigue test device and monitoring system |
| EP3611488A3 (en) * | 2018-12-29 | 2020-07-01 | Railway Engineering Research Institute of China Academy of Railway Sciences Corporation Limited | A high frequency fatigue dynamic loading test machine for railway fastener elastic strips |
-
2016
- 2016-05-04 CN CN201620395627.6U patent/CN205580899U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108106931A (en) * | 2018-01-17 | 2018-06-01 | 昆明理工大学 | A kind of test fixture for ω structure railway elastic bars |
| CN108106931B (en) * | 2018-01-17 | 2024-03-22 | 昆明理工大学 | Test fixture for omega-structure railway spring strip |
| CN109708859A (en) * | 2018-12-16 | 2019-05-03 | 安徽省巢湖铸造厂有限责任公司 | Adjustable rail clip fatigue experimental device |
| EP3611488A3 (en) * | 2018-12-29 | 2020-07-01 | Railway Engineering Research Institute of China Academy of Railway Sciences Corporation Limited | A high frequency fatigue dynamic loading test machine for railway fastener elastic strips |
| JP2020109404A (en) * | 2018-12-29 | 2020-07-16 | 中国▲鉄▼道科学研究院集▲団▼有限公司▲鉄▼道建筑研究所Ｃｈｉｎａ Ａｃａｄｅｍｙ Ｏｆ Ｒａｉｌｗａｙ Ｓｃｉｅｎｃｅｓ Ｃｏｒｐｏｒａｔｉｏｎ Ｌｉｍｉｔｅｄ， Ｒａｉｌｗａｙ Ｅｎｇｉｎｅｅｒｉｎｇ Ｒｅｓｅａｒｃｈ Ｉｎｓｔｉｔｕｔｅ | High-frequency fatigue and dynamic load tester for clip for fastener of railroad rail |
| CN109799150A (en) * | 2019-02-19 | 2019-05-24 | 北京建筑大学 | Railway I type spring high-cycle fatigue test method |
| CN109799150B (en) * | 2019-02-19 | 2021-04-20 | 北京建筑大学 | Railway I-type elastic strip high-frequency fatigue testing method |
| CN110672448A (en) * | 2019-10-24 | 2020-01-10 | 成都西交轨道交通技术服务有限公司 | Track shock attenuation backing plate fatigue test device and monitoring system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160914 Termination date: 20170504 |
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| CF01 | Termination of patent right due to non-payment of annual fee |