CN104100664B - Spring resetting device - Google Patents
Spring resetting device Download PDFInfo
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- CN104100664B CN104100664B CN201410315536.2A CN201410315536A CN104100664B CN 104100664 B CN104100664 B CN 104100664B CN 201410315536 A CN201410315536 A CN 201410315536A CN 104100664 B CN104100664 B CN 104100664B
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- spring
- springs
- central shaft
- groups
- reverse motion
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Abstract
The invention discloses a spring resetting device. The spring resetting device comprises a mounting base, a bearing base and a central shaft connected with the mounting base and the bearing base. A spring set sleeves the central shaft between the mounting base and the bearing base and comprises a plurality of springs. Each spring sleeves the central shaft, and each two adjacent springs are connected through an isolation ring, a spring barrel is arranged outside the spring set, two ends of the spring barrel are fixedly connected with a limit sleeve and a screw plug respectively, a spring seat is arranged at one end close to the limit sleeve, one end close to the screw plug is provided with an adjusting washer, and a retainer is arranged in the spring barrel and at the end close to the spring seat. The spring resetting device adopting the springs and the isolation rings is capable of effectively acquiring larger operation travel with small operation power, operability of the spring resetting device is improved, functional requirements for large travel and small elastic force of the spring resetting device are effectively realized, operating power of pilots is reduced, and brake efficiency of an aircraft is improved.
Description
Technical field
The invention belongs to aircraft brake technical field, is related to a kind of brake resetting means, more particularly, to a kind of spring
Resetting means.
Background technology
At present, aircraft often pulls brake lever, steel when shutdown brake and emergency brake is carried out by pilot
Rope transmission steering force carries out remote control brake valve realization.After completing brake, pilot looses one's grip, by spring return mechanism
Effect, brake lever return is realized getting off the brakes.However, pilot is when shutdown brake and emergency brake is carried out, need to pull handss
Handle moves larger displacement, while also to overcome steel cable frictional resistance, brake valve steering force and spring return mechanism elastic force.Steel cable
Frictional resistance, brake valve steering force and spring return mechanism elastic force can affect with joint efforts manipulating for shutdown brake and emergency brake
Property.If excessive with joint efforts, navigability is poor, by the efficiency for affecting shutdown brake to be particularly emergency brake, causes security incident.
Spring return mechanism is mainly made up of spring, and after structural parameters determination, its rigidity also determines single-piece spring, elastic force
It is directly proportional to impulse stroke, impulse stroke is bigger, elastic force is bigger.And aircraft requirements spring return mechanism has larger stroke
With less elastic force, this forms a sharp contradiction.In addition, when spring outer diameter is limited by installing space, larger work is needed again
When making stroke, spring draw ratio is excessive, will cause spring unstability, it is impossible to normal work.Therefore how to develop a kind of with big row
The spring return mechanism of journey, little elastic force, is current problem demanding prompt solution.
The content of the invention
To solve the above problems, the invention provides a kind of spring reverse motion, effectively realizes the big of spring reverse motion
The functional requirement of stroke, little elastic force, so as to reduce pilot guidance power, improves aircraft brake efficiency.
The present invention is achieved by following technical solution.
A kind of spring reverse motion, including mounting seat, fulcrum bearing and the central shaft that is connected with mounting seat and fulcrum bearing, it is described
It is located on central shaft and groups of springs is set between mounting seat and fulcrum bearing, the groups of springs is made up of some springs, per part bullet
Spring is sleeved on central shaft outside, and is connected using shading ring between every two pieces spring.
The groups of springs outside is provided with spring strut, and at spring strut two ends stop collar and plug screw are fixedly connected with respectively,
Stop collar one end is provided with spring base, plug screw one end is being provided with adjustment packing ring.
Spring base one end is provided with back-up ring in the spring strut.
The cannelure for installing back-up ring is machined with the central shaft.
The groups of springs is at least made up of two pieces spring.
The shading ring is gap cooperation with central shaft.
The spring base is to be rigidly connected with groups of springs, shading ring.
The spring is compression spring or extension spring.
The stop collar and plug screw are threaded connection are fixed on spring strut inner side two ends respectively.
The back-up ring is elastic spring.
The invention has the beneficial effects as follows：
Compared with prior art, more than one piece spring, shading ring be present invention employs and constitutes spring reverse motion, can be less
Larger impulse stroke is effectively obtained under steering force, spring reverse motion navigability is improved；In the shutdown that certain aircraft is used
In brake steel cable, original design to adopt 1 spring to constitute spring reverse motion, when impulse stroke reaches 65mm, steering force is
173N, pilot can not receive, and using after the spring return mechanism that 2 springs are constituted, steering force drops to 100N, and effect is bright
It is aobvious.
Description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention one；
Fig. 2 is the structural representation of the embodiment of the present invention two；
Fig. 3 is structure enlarged diagram at the D of Fig. 2；
Fig. 4 is the mathematical model figure of spring return mechanism of the present invention.
In figure：1- stop collars, 2- spring struts, 3- spring bases, 4- groups of springs, 5- shading rings, 6- adjustment packing rings, 7- plug screws,
8- central shafts, 9- back-up rings, 10- mounting seats, 11- fulcrum bearings.
Specific embodiment
Technical scheme is further described with reference to embodiment accompanying drawing, but claimed scope is not limited to
In described.
As shown in figure 1, a kind of spring reverse motion of the present invention, including mounting seat 10, fulcrum bearing 11 and with installation
The central shaft 8 that seat 10 is connected with fulcrum bearing 11, is located on the central shaft 8 and is set with spring between mounting seat 10 and fulcrum bearing 11
Group 4, the groups of springs 4 is made up of some springs, and every spring is sleeved on the outside of central shaft 8, and between every two pieces spring
Connected using shading ring 5.In actual applications, mounting seat 10 is connected by screw thread with central shaft, for adjusting the peace of groups of springs 4
Dress space, controls the initial elastic force of groups of springs 4；Shading ring 5 is sleeved on central shaft 8, and can be slided on central shaft 8, shading ring 5
Quantity according to the quantity of spring determine；The fulcrum bearing 11 is fixed in the installation pedestal of spring return mechanism, for supporting
Groups of springs 4.
As shown in Figure 2 and Figure 3, a kind of spring reverse motion of the present invention, in the outside of groups of springs 4 spring is additionally provided with
Cylinder 2, two ends are fixedly connected with respectively stop collar 1 and plug screw 7 in spring strut 2, and the one end of stop collar 1 is being provided with spring base
3, plug screw one end is being provided with adjustment packing ring 6, the central shaft 8 is located at the center of spring strut 2, in actual applications, described
Respectively scalable is fastened on the inner side two ends of spring strut 2 for stop collar 1 and plug screw 7, for adjusting the installing space of groups of springs 4, control
The initial elastic force of groups of springs processed 4；Wherein stop collar 1 is used for the axial location of limited spring seat 3, when spring base 3 is moved axially to
When its end face is with 1 end contact of stop collar, stop movement, it is ensured that groups of springs setting height(from bottom) is constant, the initial bullet under setting height(from bottom)
Power is constant；Plug screw 7 is used for the installing space of limited spring group 4；The spring base 3 and shading ring 5 are set on central shaft 8, are used
In installation groups of springs 4；Near the one end of stop collar 1, shading ring 5 can slide wherein spring base 3 on central shaft 8, its quantity according to
The quantity of spring determines；The groups of springs 4 is sleeved on the outside of central shaft 8, and between each two shading ring 5.Groups of springs 4 exists
Elastic deformation is produced by after external force effect compression, energy is stored, after external force is eliminated, is released energy, return to initial condition, completed
Reset function, its quantity determines according to the impulse stroke of single-piece spring and the total kilometres of spring return mechanism；In the spring strut 2
The one end of plug screw 7 is provided with adjustment packing ring 6, for the initial elastic force of accurate adjustment spring reverse motion；Lean in the spring strut 2
Nearly one end of stop collar 1 is provided with back-up ring 9, for limiting the relative position of spring base 3 and central shaft 8, transmits axial force, realizes bullet
The compression and reset of spring group.
The shading ring 5 is gap cooperation with central shaft 8, can be moved axially with respect on central shaft 8.
The cannelure for installing back-up ring 9 is machined with the central shaft 8.In operation, central shaft 8 is pulled to the right, draw
Power is delivered to spring base 3 by back-up ring 9.
The spring base 3 is to be rigidly connected with groups of springs 4, shading ring 5.So, the axial force for acting on spring base 3 passes through
It is rigidly connected while be applied in every groups of springs 4, every groups of springs 4 is deformed simultaneously.Under responsive to axial force, single-piece bullet
The deflection of spring group 4 is S, and the deflection of n parts groups of springs 4 is nS, so as to the big stroke for realizing spring reverse motion, little elastic force work(
Energy.After laying down the pulling force acted on central shaft 8, shading ring is delivered to by being rigidly connected in the spring force of spring reverse motion
5th, spring base 3, back-up ring 9, central shaft 8, each part resets.
The groups of springs 4 is at least made up of two pieces spring, is connected by shading ring 5 between every two pieces spring.By two pieces
Or two pieces above spring realizes big stroke, the function of little elastic force.
In above-mentioned technical proposal, the spring can be compression spring or extension spring.
In the technical program, the stop collar 1 and plug screw 7 preferentially select screw thread with the connection at the inner side two ends of spring strut 2
Connection, connection is reliable, is easy to manufacture processing, and it is more convenient to adjust spring installing space.
The back-up ring 9 preferentially selects elastic spring.
Fig. 4 is spring works mathematical model figure of the present invention using the series connection of two pieces spring, wherein, A is groups of springs stress point,
B is spring docking point, and C is supporting-point；X1、X2The displacement of A, B point, K respectively after groups of springs stress1For the firm of first spring
Degree, K2For the rigidity of second spring.
After spring stress, the deflection of first spring is
F1=X1-X2
After spring stress, the deflection of second spring is
F2=X2
It is equal according to the stress of the transfer principle of power, A points and B points
PA=PB
K1×F1=K2F2
K1×(X1-X2)=K2X2
It follows that when two pieces spring serial spring works, the displacement of A points is B point displacementsTimes.When two springs
Rigidity it is identical, i.e. K1=K2When, obtain X1=2X2。
Thus draw：Using two pieces rigidity identical spring tandem working, the work of twice can be obtained under same load
Make stroke.In the same manner, using n part rigidity identical spring tandem workings, n times of impulse stroke can be obtained under same load.
The present invention is cascaded composition spring reverse motion using more than one piece spring, can realize big stroke, little elastic force function.
The present invention has the functional characteristics that big stroke is obtained under little steering force.By using spring of the present invention
Resetting means, efficiently solves the problems, such as that certain aircraft obtains big impulse stroke to brake lever under little steering force.
Claims (7)
1. a kind of spring reverse motion, it is characterised in that：Including mounting seat (10), fulcrum bearing (11) and with mounting seat (10) and
The connected central shaft (8) of bearing (11), is located on the central shaft (8) and is set with bullet between mounting seat (10) and fulcrum bearing (11)
Spring group (4), the groups of springs (4) is made up of some springs, and every spring is sleeved on central shaft (8) outside, and in every two pieces
Connected using shading ring (5) between spring；Groups of springs (4) outside is provided with spring strut (2), at spring strut (2) two ends point
Stop collar (1) and plug screw (7) are not fixedly connected with, stop collar (1) one end spring base (3) is being provided with, near plug screw
(7) one end is provided with adjustment packing ring (6)；Spring base (3) one end is provided with back-up ring (9) in the spring strut (2)；The bullet
Spring abutment (3) and groups of springs (4), shading ring (5) are to be rigidly connected.
2. a kind of spring reverse motion according to claim 1, it is characterised in that：Use is machined with the central shaft (8)
In the cannelure for installing back-up ring (9).
3. a kind of spring reverse motion according to claim 1, it is characterised in that：The groups of springs (4) is at least by two pieces
Spring is constituted.
4. a kind of spring reverse motion according to claim 1, it is characterised in that：The shading ring (5) and central shaft (8)
For gap cooperation.
5. a kind of spring reverse motion according to claim 1, it is characterised in that：The spring is compression spring or drawing
Spring.
6. a kind of spring reverse motion according to claim 1, it is characterised in that：The stop collar (1) and plug screw (7) point
It is not threaded connection and is fixed on spring strut (2) inner side two ends.
7. a kind of spring reverse motion according to claim 1, it is characterised in that：The back-up ring (9) is elastic spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410315536.2A CN104100664B (en) | 2014-07-03 | 2014-07-03 | Spring resetting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410315536.2A CN104100664B (en) | 2014-07-03 | 2014-07-03 | Spring resetting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104100664A CN104100664A (en) | 2014-10-15 |
| CN104100664B true CN104100664B (en) | 2017-04-12 |
Family
ID=51669092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410315536.2A Active CN104100664B (en) | 2014-07-03 | 2014-07-03 | Spring resetting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104100664B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101080584A (en) * | 2004-09-07 | 2007-11-28 | 丹利·耶姆有限公司 | Long travel, high force combination spring |
| CN202756495U (en) * | 2012-05-31 | 2013-02-27 | 昆明中铁大型养路机械集团有限公司 | Brake cylinder, vehicle provided with brake cylinder, railway car provided with brake cylinder and railway maintenance machine provided with brake cylinder |
| CN103335040A (en) * | 2013-07-17 | 2013-10-02 | 四川制动科技股份有限公司 | Unit brake cylinder for railway vehicle |
| CN204025451U (en) * | 2014-07-03 | 2014-12-17 | 贵州新安航空机械有限责任公司 | A kind of spring reset mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980049040A (en) * | 1996-12-19 | 1998-09-15 | 박병재 | Leak-proof structure of brake oil for disc brake of automobile |
-
2014
- 2014-07-03 CN CN201410315536.2A patent/CN104100664B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101080584A (en) * | 2004-09-07 | 2007-11-28 | 丹利·耶姆有限公司 | Long travel, high force combination spring |
| CN202756495U (en) * | 2012-05-31 | 2013-02-27 | 昆明中铁大型养路机械集团有限公司 | Brake cylinder, vehicle provided with brake cylinder, railway car provided with brake cylinder and railway maintenance machine provided with brake cylinder |
| CN103335040A (en) * | 2013-07-17 | 2013-10-02 | 四川制动科技股份有限公司 | Unit brake cylinder for railway vehicle |
| CN204025451U (en) * | 2014-07-03 | 2014-12-17 | 贵州新安航空机械有限责任公司 | A kind of spring reset mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104100664A (en) | 2014-10-15 |
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