CN104568411A - Symmetrically loading mechanism of double-ejection rod actuator - Google Patents
Symmetrically loading mechanism of double-ejection rod actuator Download PDFInfo
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- CN104568411A CN104568411A CN201510004249.4A CN201510004249A CN104568411A CN 104568411 A CN104568411 A CN 104568411A CN 201510004249 A CN201510004249 A CN 201510004249A CN 104568411 A CN104568411 A CN 104568411A
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- spring seat
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- center rail
- left spring
- right spring
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Abstract
The invention discloses a symmetrically loading mechanism of a double-ejection rod actuator. A base is fixed to the ground through foundation bolts, connection screw rods are installed between the two sides of a bottom plate of a left spring seat and a bottom plate of a right spring seat, and the connection screw rods are fixed to the two sides of the base. A central guide rail is of a stepped shaft structure, the big end of the center guide rail is sleeved with the bottom plate of the left spring seat, the small end of the center guide rail sequentially penetrates through the left spring seat, the right spring seat and a guide sleeve, the space between the bottom plate of the left spring seat and the bottom plate of the right spring seat is sleeved with a spring, and the two ends of the spring abut against the left spring seat and the right spring seat respectively. The left spring seat abuts against the central guide rail, the right spring seat abuts against the guide sleeve, and the guide sleeve is sleeved with the bottom plate of the right spring seat. The central guide rail is sleeved with a gasket and a central guide rail nut for axial compression and fixing. The symmetrically loading mechanism can provide force linearly changing along with strokes and can guarantee that the actuator bears completely equal force in the stretching out process and the drawing back process; meanwhile, the symmetrically loading mechanism has the advantages of being simple in structure, stable in loading, free of impact, high in rigidity, long in service life and the like, and therefore the symmetrically loading mechanism can be used as loading mechanisms of actuator movable sealing piece testing systems at 28 MPa pressure grades.
Description
Technical field
The present invention relates to a kind of load maintainer, particularly relate to a kind of two rod actuator asymmetrical load mechanism.
Background technology
In recent years along with the rise of the large Aircraft Project of China, relevant research for matching experiment work has also started to launch successively, and hydraulic actuator is as the main actuator on aircraft, and the Life Relation of its dynamic seal is to the reliability of aircraft.In order to improve the efficiency weight ratio of aircraft, other hydraulic system solution of 28MPa pressure stage can be adopted to carry out alternative existing 21MPa.But, due at present also not relevant ground-testing plant, cannot verify whether the performance of dynamic seal and life-span can meet the demands, so dynamic seal can be simulated in the urgent need to development be operated in pilot system under 28MPa operating mode.But the design of the load simulation form of actuator is a difficult point under this pressure rank, be required to meet structure simple, load steadily without the feature such as impacting, rigidity is large, the life-span is long, otherwise by the authenticity of the reliability and test findings that affect testing equipment.
Summary of the invention
In order to solve Problems existing in background technology, the object of the invention is to propose a kind of two rod actuator asymmetrical load mechanism, both can enable to be applied to power in actuator with stroke linear change, actuator can be made again to be subject to completely equal power stretching out in retraction process, also meet the requirements such as structure is simple, loading steadily nothing impact, rigidity is large, the life-span is long, meet the request for utilization of pilot system.
The technical solution used in the present invention is:
The present invention includes center rail, left spring seat base plate, left spring seat, spring, right spring base, guide pin bushing, right spring base base plate, pad, center rail nut, connecting screw rod nut, foot screw, connecting screw rod, base and trip bolt; Base is fixed on the ground by foot screw, is respectively provided with connecting screw rod between the both sides of left spring seat base plate and right spring base base plate, and two connecting screw rods respectively horizontal parallel are fixed on the both sides of base; Center rail is multidiameter structure, the large end of center rail multidiameter is enclosed within left spring seat base plate, the small end of center rail multidiameter is successively through left spring seat, spring, right spring base and guide pin bushing, in center rail between left spring seat base plate and right spring base base plate, cover has spring, the two ends of spring are pressed on left spring seat and right spring base respectively, and left spring seat withstands on the shaft shoulder of center rail; Right spring base withstands on one end of guide pin bushing, and the multidiameter of guide pin bushing other end small end is enclosed within right spring base base plate, and in the center rail on the right side of guide pin bushing, cover has pad and center rail nut, carries out axial compression fix by center rail nut.
The middle part of two described connecting screw rods is fixed in the screw hole of base by connecting screw rod nut and trip bolt.
The large end of described center rail is processed with for going out with actuator the pin hole that rod end is connected.
The side of described left spring seat, right spring base, guide pin bushing is all processed with the through hole for adding railway grease.
Described center rail small end surface working has the spiral groove for even application railway grease.
The beneficial effect that the present invention has is:
The invention solves the pilot system of actuator dynamic seal under 28MPa pressure rank to the needs of problems of load maintainer, power with stroke linear change can either be provided, can ensure that again actuator is being stretched out and is being subject to completely equal power in retraction process, meet the requirement that structure is simple, the steady nothing of loading is impacted, rigidity is large, the life-span is long.
Accompanying drawing explanation
Fig. 1 is structural principle schematic diagram of the present invention.
Fig. 2 is structural upright schematic diagram of the present invention.
In figure: 1. center rail; 2. left spring seat base plate; 3. left spring seat; 4. spring; 5. right spring base; 6. guide pin bushing; 7. right spring base base plate; 8. pad; 9. center rail nut; 10. connecting screw rod nut; 11. foot screws; 12. connecting screw rods; 13. bases; 14. trip bolts.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
As shown in drawings, the present invention includes center rail 1, left spring seat base plate 2, left spring seat 3, spring 4, right spring base 5, guide pin bushing 6, right spring base base plate 7, pad 8, center rail nut 9, connecting screw rod nut 10, foot screw 11, connecting screw rod 12, base 13 and trip bolt 14, base 13 is fixed on the ground by foot screw 11, is respectively provided with connecting screw rod 12 between the both sides of left spring seat base plate 2 and right spring base base plate 7, and two connecting screw rods 12 respectively horizontal parallel are fixed on the both sides of base 13, between the center of left spring seat base plate 2 and right spring base base plate 7, columniform center rail 1 is installed, center rail 1 is between two connecting screw rods 12, center rail 1 is multidiameter structure, the large end of center rail 1 multidiameter is enclosed within left spring seat base plate 2, the small end of center rail 1 multidiameter is successively through left spring seat 3, spring 4, right spring base 5 and guide pin bushing 6, in center rail 1 between left spring seat base plate 2 and right spring base base plate 7, cover has spring 4, the two ends of spring 4 are pressed on left spring seat 3 and right spring base 5 respectively, left spring seat 3 withstands on the shaft shoulder of center rail 1.
Right spring base 5 withstands on one end of guide pin bushing 6, and the multidiameter of guide pin bushing 6 other end small end is enclosed within right spring base base plate 7, and in the center rail 1 on the right side of guide pin bushing 6, cover has pad 8 and center rail nut 9, carries out axial compression fix by center rail nut 9.
The middle part of two connecting screw rods 12 is fixed in the screw hole of base 13 by connecting screw rod nut 10 and trip bolt 14, fixing by trip bolt 14 circumference, by connecting screw rod nut 10 axial restraint.
Center rail 1 greatly end is processed with for going out with actuator the pin hole that rod end is connected.The side of left spring seat 3, right spring base 5, guide pin bushing 6 is all processed with the through hole for adding railway grease.Center rail 1 small end surface working has the spiral groove for even application railway grease.
As shown in Figure 1, implementation process of the present invention is:
In load maintainer of the present invention, fixed part includes base 13, connecting screw rod 12, left spring seat base plate 2 and right spring base base plate 7, and motion parts includes center rail 1, left spring seat 3, spring 4, right spring base 5 and guide pin bushing 6.
Pad 8 and center rail nut 9 are fixed in center rail 1 and with its motion, the left end that actuator goes out the center rail 1 of rod end and load maintainer is connected by pin.When actuator is stretched out, when namely moving right, the shaft shoulder of center rail 1 promotes left spring seat 3 and moves, the left end of Compress Spring 4, and its right-hand member is limited by right spring base 5 and fixes, therefore spring 4 is provided the load force linearly changed with displacement by compressing; When actuator is retracted, namely time to left movement, the center rail nut 9 that relative centre guide rail is fixing and pad 8 promotes guide pin bushing 6, right spring base 5 moves, the right-hand member of Compress Spring 4, its left end is limited by left spring seat 3 and fixes, therefore spring 4 is provided the load force linearly changed with displacement by compressing.Like this, actuator is in the process of stretching out and retract, and load maintainer just can provide the power of bi-directional symmetrical, thus achieves technique effect of the present invention.
Claims (5)
1. a two rod actuator asymmetrical load mechanism, is characterized in that: comprise center rail (1), left spring seat base plate (2), left spring seat (3), spring (4), right spring base (5), guide pin bushing (6), right spring base base plate (7), pad (8), center rail nut (9), connecting screw rod nut (10), foot screw (11), connecting screw rod (12), base (13) and trip bolt (14); Base (13) is fixed on the ground by foot screw (11), respectively be provided with connecting screw rod (12) between the both sides of left spring seat base plate (2) and right spring base base plate (7), two connecting screw rods (12) respectively horizontal parallel are fixed on the both sides of base (13); Center rail (1) is multidiameter structure, the large end of center rail (1) multidiameter is enclosed within left spring seat base plate (2), the small end of center rail (1) multidiameter is successively through left spring seat (3), spring (4), right spring base (5) and guide pin bushing (6), the upper cover of center rail (1) between left spring seat base plate (2) and right spring base base plate (7) has spring (4), the two ends of spring (4) are pressed on left spring seat (3) and right spring base (5) respectively, and left spring seat (3) withstands on the shaft shoulder of center rail (1); Right spring base (5) withstands on one end of guide pin bushing (6), the multidiameter of guide pin bushing (6) other end small end is enclosed within right spring base base plate (7), the upper cover of center rail (1) on guide pin bushing (6) right side has pad (8) and center rail nut (9), carries out axial compression fix by center rail nut (9).
2. the two rod actuator asymmetrical load mechanism of one according to claim 1, is characterized in that: the middle part of two described connecting screw rods (12) is fixed in the screw hole of base (13) by connecting screw rod nut (10) and trip bolt (14).
3. the two rod actuator asymmetrical load mechanism of one according to claim 1, is characterized in that: described center rail (1) greatly end is processed with for going out with actuator the pin hole that rod end is connected.
4. the two rod actuator asymmetrical load mechanism of one according to claim 1, is characterized in that: the side of described left spring seat (3), right spring base (5), guide pin bushing (6) is all processed with the through hole for adding railway grease.
5. the two rod actuator asymmetrical load mechanism of one according to claim 1, is characterized in that: described center rail (1) small end surface working has the spiral groove for even application railway grease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510004249.4A CN104568411A (en) | 2015-01-06 | 2015-01-06 | Symmetrically loading mechanism of double-ejection rod actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510004249.4A CN104568411A (en) | 2015-01-06 | 2015-01-06 | Symmetrically loading mechanism of double-ejection rod actuator |
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| Publication Number | Publication Date |
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| CN104568411A true CN104568411A (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510004249.4A Pending CN104568411A (en) | 2015-01-06 | 2015-01-06 | Symmetrically loading mechanism of double-ejection rod actuator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908233A (en) * | 2017-03-17 | 2017-06-30 | 西北工业大学 | The cabin door lock reliability test of varying load loading can be realized |
| CN107702900A (en) * | 2017-08-31 | 2018-02-16 | 北京精密机电控制设备研究所 | A kind of cylindrical compression spring load test method and system |
| CN109878759A (en) * | 2019-03-29 | 2019-06-14 | 中国飞机强度研究所 | Aircraft testing device, constraint and loading method, button weight and loading method |
| CN114509246A (en) * | 2021-12-29 | 2022-05-17 | 中国飞机强度研究所 | Airplane strength test weight deducting device based on spring system |
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| CN2613092Y (en) * | 2003-02-25 | 2004-04-21 | 郭晨海 | Serially-arranged high-energy electromagnetic actuator |
| CN201476959U (en) * | 2009-07-07 | 2010-05-19 | 中国航空工业第六一八研究所 | Ultra-large load spring loading mechanism for loading test system |
| CN202693287U (en) * | 2012-06-26 | 2013-01-23 | 中国航空工业第六一八研究所 | Test complex for parallel coupled actuator |
| CN103698116A (en) * | 2013-12-13 | 2014-04-02 | 西北工业大学 | Spring-loaded performance test experiment table for linear electro-mechanical actuator |
| CN203616210U (en) * | 2013-12-04 | 2014-05-28 | 中国航空工业第六一八研究所 | Load test device for electro-hydrostatic actuator |
-
2015
- 2015-01-06 CN CN201510004249.4A patent/CN104568411A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2613092Y (en) * | 2003-02-25 | 2004-04-21 | 郭晨海 | Serially-arranged high-energy electromagnetic actuator |
| CN201476959U (en) * | 2009-07-07 | 2010-05-19 | 中国航空工业第六一八研究所 | Ultra-large load spring loading mechanism for loading test system |
| CN202693287U (en) * | 2012-06-26 | 2013-01-23 | 中国航空工业第六一八研究所 | Test complex for parallel coupled actuator |
| CN203616210U (en) * | 2013-12-04 | 2014-05-28 | 中国航空工业第六一八研究所 | Load test device for electro-hydrostatic actuator |
| CN103698116A (en) * | 2013-12-13 | 2014-04-02 | 西北工业大学 | Spring-loaded performance test experiment table for linear electro-mechanical actuator |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908233A (en) * | 2017-03-17 | 2017-06-30 | 西北工业大学 | The cabin door lock reliability test of varying load loading can be realized |
| CN107702900A (en) * | 2017-08-31 | 2018-02-16 | 北京精密机电控制设备研究所 | A kind of cylindrical compression spring load test method and system |
| CN107702900B (en) * | 2017-08-31 | 2019-05-24 | 北京精密机电控制设备研究所 | A kind of cylindrical compression spring load test method and system |
| CN109878759A (en) * | 2019-03-29 | 2019-06-14 | 中国飞机强度研究所 | Aircraft testing device, constraint and loading method, button weight and loading method |
| CN109878759B (en) * | 2019-03-29 | 2022-07-15 | 中国飞机强度研究所 | Airplane test device, restraining and loading method and weight deducting and loading method |
| CN114509246A (en) * | 2021-12-29 | 2022-05-17 | 中国飞机强度研究所 | Airplane strength test weight deducting device based on spring system |
| CN114509246B (en) * | 2021-12-29 | 2023-07-07 | 中国飞机强度研究所 | Aircraft strength test buckling device based on spring system |
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Application publication date: 20150429 |