CN106195073A - A kind of combination type spring housing - Google Patents
A kind of combination type spring housing Download PDFInfo
- Publication number
- CN106195073A CN106195073A CN201610536409.4A CN201610536409A CN106195073A CN 106195073 A CN106195073 A CN 106195073A CN 201610536409 A CN201610536409 A CN 201610536409A CN 106195073 A CN106195073 A CN 106195073A
- Authority
- CN
- China
- Prior art keywords
- spring housing
- sleeve
- spring
- pull bar
- combination type
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/38—Slack adjusters
- F16D65/40—Slack adjusters mechanical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface
- B64C25/42—Arrangement or adaptation of brakes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/04—Wound springs
- F16F1/12—Attachments or mountings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Springs (AREA)
Abstract
A kind of combination type spring housing, is made up of sleeve and spring housing.Spring housing is positioned at sleeve.When spring housing is press-fitted to barrel bore interference fit.There is the through hole loading pull bar at the shoulder block center of sleeve, makes pull bar pass this through hole and stretches into and be positioned at sleeve, with the inner hole of the spring housing being positioned at sleeve.When combination type spring housing is for coordinating with wheel debooster, the flange of the external peripheral surface radially protruding of sleeve opening end, this flange defines the fixing seat of the return spring in matched wheel debooster.In the present invention, spring housing is fettered by sleeve, make spring housing deform in running to be restricted, stress is stable, have simple for structure compact, power of wrapping is stablized, and pullout forces is unattenuated or decay is the least, produce the feature that qualification rate is high, reliable, effectively overcomes in prior art power of wrapping unstable and use loosens the potential safety hazard brought.
Description
Technical field
The present invention relates to airplane wheel brake device field, specifically a kind of airplane wheel brake device automatic clearance adjustment mechanism
Part.
Background technology
For adapting to present generation aircraft braking quality requirement, Inspection Aircraft Wheels is equipped with automatic clearance adjustment mechanism.Its function is, when aircraft is many
After secondary landing braking, due to the abrasion of brake friction material, the distance between piston and compression plate is made to increase.In order to ensure to stop
Car performance, improves brake sensitivity, and this mechanism can automatically adjust the gap between piston and compression plate and meet regulation requirement.Automatically
Gap adjusting mechanism has various structural shape, and spring shell type automatic clearance adjustment mechanism is exactly one of which.It is mainly by spring housing and pull bar
Composition.Pull bar is arranged in return spring stop sleeve, and spring housing is arranged on pull bar.When gap adjusting mechanism is not actuated, spring housing
Pull bar is held without relative displacement, spring housing with pull bar；When gap adjusting mechanism starts, the frictional force of pull bar spring housing to be overcome, will
Spring housing pulls out, spring housing and pull bar generation relative displacement.After releasing of brake, debooster makes piston reset, spring housing
It is in position new on pull bar, thus piston stretches out some length before relatively adjusting gap accordingly, it is ensured that in use, braking gap is constant.
Standard component has been become for the ease of production application, spring housing and pull bar.Spring shell type automatic clearance adjustment mechanism can individually be arranged in vapour
On cylinder seat, referred to as discrete spring shell type automatic clearance adjustment mechanism, it is possible to combination is in piston, and referred to as combination type spring shell type is automatic
Gap adjusting mechanism.Discrete gap adjusting mechanism pull bar one end is connected with hold-down ring, and when getting off the brakes, pull bar drives hold-down ring, will by hold-down ring
Piston retracts；Combination type gap adjusting mechanism pull bar one end is fixed with cylinder seat, by the return spring being arranged in piston when getting off the brakes
Piston is rebounded.Spring housing is the vital part of automatic clearance adjustment mechanism, and it wraps power or the pullout forces from pull bar determines automatically
Gap adjusting mechanism reliability of operation.It is to wrap power instability and use loosening that existing spring housing exists subject matter.Spring housing one
Denier occurs to loosen, and the back piston that gets off the brakes cannot reset, thus can not thoroughly release brake, brings accident potential.
Summary of the invention
There is, for overcoming, the deficiency that power of wrapping is unstable and use is loosening in prior art, the present invention proposes a kind of combination
Formula spring housing.
The present invention is made up of sleeve and spring housing.Described spring housing is positioned at sleeve.When spring housing is press-fitted to barrel bore
After, value of interference fit therebetween is 0.01～0.05mm.The endoporus of described spring coordinates with pull bar, and nip is spring
Internal diameter size than pull bar outside dimension little 0.14～0.16mm；One end of spring contacts with the shoulder block of sleeve.The shoulder block of sleeve
There is the through hole loading pull bar at center, makes pull bar pass this through hole and stretches into and be positioned at sleeve, with the spring housing being positioned at sleeve
Hole coordinates.The internal diameter less than the external diameter of pull bar 0.14～0.16mm of described spring.
One end of sleeve is uncovered, and the other end has end plate, and this end plate defines the shoulder block that the inner face with spring housing coordinates.
The length of sleeve with accommodate spring housing total length as condition, the chamber degree of depth of sleeve, equal to or more than the total length of spring, makes
This sleeve can wrap whole spring housing.The aperture of hub internal bore is divided into two sections: one section for the section of cooperation with spring housing, another section
For non-cooperation section.The internal diameter of cooperation section therein must meet with described spring housing coordinate requirement；The internal diameter of non-cooperation section and bullet
The external diameter of spring set is identical, or than spring housing outside dimension big 0.4～0.6mm.
Described spring housing uses cross section to be trapezoidal wire coiling and process through doubling-up；After heat treatment, Rockwell hardness is HRC45-
55。
When described combination type spring housing is for coordinating with wheel debooster, the external peripheral surface of described sleeve opening end
The flange of radially protruding, this flange defines the fixing seat of the return spring in matched wheel debooster, by Hui Li
Return spring in mechanism is sleeved on sleeve, and makes an end face of this return spring be against the end of sleeve opening end flange
Face.
In the present invention, described spring housing is made up of sleeve and spring housing, and spring housing is press-fitted in sleeve；Sleeve is middle backlash
Turning, one end is uncovered, or with the flange extended radially out, the other end has the annular shoulder block radially-inwardly stretched out；Sleeve
Shoulder block and the chamber that formed of the inner surface of sleeve, be used for accommodating the spring housing being assemblied on pull bar；Helical spring set
External diameter and the minor diameter fit of cylindrical sleeve, the pull bar with gap adjusting mechanism is coordinated by the internal diameter of helical spring set, cylindrical bullet
One end of spring set contacts with sleeve one end shoulder block；Spring housing not only has suitable nip, spring housing and sleeve with pull bar
Also there is suitable nip；Spring housing is 0.01～0.05mm with the value of interference fit of sleeve；The internal diameter size of spring housing
Than pull bar outside dimension little 0.14～0.16mm
Sleeve uses steel manufacture, and after heat treatment, Rockwell hardness is HRC35-45；For improve corrosion resistance, except with spring
The surface that set outer surface matches, the remaining surface of sleeve is coated processing, such as zinc-plated, cadmium plating；
Spring housing is a kind of special helical spring, uses cross section to be trapezoidal wire coiling and process, finally through doubling-up
After heat treatment, Rockwell hardness is HRC45-55；
In the present invention, spring housing is fettered by sleeve, makes spring housing deform in running and is restricted, and stress is stable, tool
Having simple for structure compact, wrap power stable, pullout forces is unattenuated or decay is the least, produce the features such as qualification rate is high, reliable,
Effectively overcome in prior art power of wrapping unstable and use and loosen the potential safety hazard brought.Meanwhile, can Reusability, outfield tie up
The amount of repairing is few, and service life is long, good in economic efficiency.Additionally, power wrapped by the spring housing of the present invention doubles left and right, a spring housing
The design that alternative existing two spring housings are used in series, decreases number of parts.It addition, sleeve design being become is to adjust gap unit
The ingredient of part, is again debooster's ingredient, decreases number of parts and product weight, not only improves and use reliably
Property, also improve product technology performance and economy.
Accompanying drawing explanation
Fig. 1 is the structural representation of the spring housing proposed in embodiment 1；
Fig. 2 is the structural representation of the spring housing proposed in embodiment 2.
In figure: 1. sleeve；2. spring housing.
Detailed description of the invention
Embodiment 1
A kind of sleeve combination formula spring housing being assemblied on gap adjusting mechanism pull bar, for Inspection Aircraft Wheels automatic gap adjusting.Described
Spring housing is made up of sleeve 1 and spring housing 2.Sleeve 1 is hollow revolving body, and one end is uncovered, and the other end has end plate, this end plate shape
Become the shoulder block of spring housing, coordinated with the inner face of spring housing 2, during work, overcome this spring housing chucking power to brake for transmission
Active force；The chamber of sleeve 1 is for accommodating the spring housing 2 being assemblied on gap adjusting mechanism pull bar；The internal diameter of sleeve 1 and described bullet
The major diameter fit of spring set, and limit the expansion of this spring housing external diameter, loosen, in order to avoid chucking power reduces.The shoulder block center of sleeve 1 has
With the through hole of pull bar major diameter fit, the through hole making pull bar pass described sleeve shoulder block center stretches into the intracavity being positioned at sleeve 1, with
It is positioned at the inner hole of the spring housing of sleeve.
The length dimension of sleeve 1 with accommodate spring housing 2 total length as condition, the chamber degree of depth of sleeve 1 equals to or more than
The total length of spring, does not expose sleeve after making the assembling of this spring housing, and sleeve can wrap whole spring housing.
Sleeve 1 uses steel manufacture, and after heat treatment, Rockwell hardness is HRC35-45；For improve corrosion resistance, except with bullet
Spring overlaps the surface that 2 outer surfaces match, and the remaining surface of sleeve 1 is coated processing, such as zinc-plated, cadmium plating.
Described spring housing 2 is cylindrical component, is assemblied in sleeve 1.The outer surface of described spring housing 2 is interior with sleeve 1
Surface engagement, after spring housing is press-fitted to barrel bore, value of interference fit therebetween is 0.01～0.05mm；Described spring
Internal diameter coordinate with pull bar, nip is that the internal diameter size of spring is than pull bar outside dimension little 0.14～0.16mm；Spring
One end contacts with the shoulder block of sleeve；After spring assembling, the constraint of the internal diameter tension member of this spring, the external diameter of spring is by the pact of sleeve
Bundle, one end of spring is by the retraining of shoulder block of sleeve 1.
Spring is helical spring, uses cross section to be trapezoidal wire coiling and process through doubling-up, Rockwell after finished heat treatment
Hardness is HRC45-55；
During assembling, first by pull bar through the centre bore of described sleeve shoulder block, sleeve is enclosed within pull bar.Fix band sleeve
Pull bar, the endoporus of spring housing is aligned with drawhead, then this spring housing is press-fitted on pull bar, until the end face top of spring housing
Live the shoulder block of sleeve；Again sleeve and spring are press fit into the end on pull bar.Through braking-get off the brakes circulation, sleeve and spring are made
Being certain position being integrally located on pull bar, this position is automatically determined by after brake gear cut-in pressure, and is getting off the brakes
After hold pull bar in this position, make sleeve and spring maintain in draw rod positions determined by brake.
For discrete gap adjusting mechanism, the sleeve in spring housing has shoulder block one end towards compression plate, i.e. stretches out towards piston
Direction.For combination type gap adjusting mechanism, the sleeve in spring housing has shoulder block one end compression plate dorsad, i.e. towards piston retraction side
To.Thus it is ensured that when gap adjusting mechanism works by the shoulder block of described sleeve to spring power transmission, thus ensure rubbing of spring and pull bar
Wiping power and chucking power are reliable and stable；
In the present embodiment, sleeve 1 inner chamber is press-fitted the spring that 1 specification is 6mm length；The interference of assembling rear spring and sleeve is joined
Resultant is 0.03mm；The surface of sleeve carries out zinc-plated process；
In order to prove the effect of the present invention, use standard tension rod and the spring housing of same specification, survey in No. 10 hydraulic oil
The pullout forces of spring housing；The pullout forces making the spring housing of the present embodiment is 1505-1517N.Test 6 times, force value Gao Erwen repeatedly
Fixed, almost without decay.And under similarity condition, prior art specification be the pullout forces of the spring housing of 6mm be 653-877N, force value
Little, unstable, and have substantially decay, between spring housing doubling-up, gap occurs.
Embodiment 2
A kind of sleeve combination formula spring housing being assemblied on gap adjusting mechanism pull bar, for Inspection Aircraft Wheels automatic gap adjusting.Described
Spring housing is made up of sleeve 1 and spring housing 2.
The composition of the present embodiment, composition the present embodiment sleeve 1 and spring housing 2 between cooperation requirement, and material is equal
Same as in Example 1.
The present embodiment is with the difference of embodiment 1, the external peripheral surface radially protruding of sleeve 1 opening end convex
Edge, this flange defines the fixing seat of the return spring in matched wheel debooster, when the present embodiment with described time
When force mechanisms coordinates, being sleeved on sleeve by the return spring in debooster, an end face of this return spring is against sleeve
The end face of opening end flange, make described in make sleeve 1 be adjust gap element ingredient, be again debooster's ingredient.
Value of interference fit between inner surface and spring mating part and the spring of described sleeve 1 is 0.01～0.05mm.
The endoporus of described spring coordinates with pull bar；The internal diameter of spring is than pull bar external diameter little 0.14～0.16mm.
The aperture of sleeve 3 endoporus is divided into two sections: one section to be the section of cooperation with spring housing, and another section is non-cooperation section.Wherein
Cooperation section internal diameter must meet with described spring housing coordinate requirement；The internal diameter of non-cooperation section and spring housing 2 external diameter name chi
Very little identical, or than spring housing 2 outside dimension big 0.4～0.6mm.In the present embodiment, the internal diameter ratio of the non-cooperation section of described sleeve
The big 0.5mm of spring outer diameter size.
Claims (5)
1. a combination type spring housing, it is characterised in that be made up of sleeve and spring housing；Described spring housing is positioned at sleeve；When
After spring housing is press-fitted to barrel bore, value of interference fit therebetween is 0.01～0.05mm；The endoporus of described spring with draw
Bar coordinates, and nip is that the internal diameter size of spring is than pull bar outside dimension little 0.14～0.16mm；One end of spring and sleeve
Shoulder block contact；There is the through hole loading pull bar at the shoulder block center of sleeve, makes pull bar pass this through hole and stretches into and be positioned at sleeve, with position
The inner hole of the spring housing in sleeve；The internal diameter less than the external diameter of pull bar 0.14～0.16mm of described spring.
2. combination type spring housing as claimed in claim 1, it is characterised in that one end of sleeve is uncovered, and the other end has end plate, should
End plate defines the shoulder block that the inner face with spring housing coordinates；The length of sleeve with accommodate spring housing total length as condition, set
The chamber degree of depth of cylinder, equal to or more than the total length of spring, makes this sleeve can wrap whole spring housing.
3. combination type spring housing as claimed in claim 1, it is characterised in that described spring housing uses cross section to be trapezoidal wire coiling
And process through doubling-up；After heat treatment, Rockwell hardness is HRC45-55.
4. combination type spring housing as claimed in claim 1, it is characterised in that when described combination type spring housing is used for and wheel Hui Li
When mechanism coordinates, the flange of the external peripheral surface radially protruding of described sleeve opening end, this flange defines matched machine
The fixing seat of the return spring in wheel debooster, is sleeved on the return spring in debooster on sleeve, and makes this Hui Li
One end face of spring is against the end face of sleeve opening end flange.
5. as claimed in claim 2 combination type spring housing, it is characterised in that the aperture of hub internal bore be divided into two sections: one section for
The cooperation section of spring housing, another section is non-cooperation section；The internal diameter of cooperation section therein must meet to be wanted with coordinating of described spring housing
Ask；The internal diameter of non-cooperation section is identical with the external diameter of spring housing, or than spring housing outside dimension big 0.4～0.6mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610189340 | 2016-03-30 | ||
| CN2016101893402 | 2016-03-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106195073A true CN106195073A (en) | 2016-12-07 |
| CN106195073B CN106195073B (en) | 2019-01-11 |
Family
ID=57472839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610536409.4A Expired - Fee Related CN106195073B (en) | 2016-03-30 | 2016-07-08 | A kind of combined type spring pocket component for Inspection Aircraft Wheels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106195073B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109823517A (en) * | 2019-04-01 | 2019-05-31 | 南京科技职业学院 | A kind of multi-rotor unmanned aerial vehicle blade of fast demountable |
| CN112610627A (en) * | 2020-11-18 | 2021-04-06 | 洛阳轴承研究所有限公司 | Spring type overrunning clutch and variable pitch spring thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201190228Y (en) * | 2008-05-13 | 2009-02-04 | 上海科净清洁用品有限公司 | Soil removal and liquid-controlled pen |
| CN201378263Y (en) * | 2009-03-27 | 2010-01-06 | 黎衍桥 | Watch crown antistatic structure |
| CN103741821A (en) * | 2013-10-09 | 2014-04-23 | 厦门嘉达环保建造工程有限公司 | Equipment room floating structure |
| CN104331127A (en) * | 2014-11-19 | 2015-02-04 | 深圳市创显光电有限公司 | Automatic lock structure with safety guarantee and display screen comprising automatic lock structure |
-
2016
- 2016-07-08 CN CN201610536409.4A patent/CN106195073B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201190228Y (en) * | 2008-05-13 | 2009-02-04 | 上海科净清洁用品有限公司 | Soil removal and liquid-controlled pen |
| CN201378263Y (en) * | 2009-03-27 | 2010-01-06 | 黎衍桥 | Watch crown antistatic structure |
| CN103741821A (en) * | 2013-10-09 | 2014-04-23 | 厦门嘉达环保建造工程有限公司 | Equipment room floating structure |
| CN104331127A (en) * | 2014-11-19 | 2015-02-04 | 深圳市创显光电有限公司 | Automatic lock structure with safety guarantee and display screen comprising automatic lock structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109823517A (en) * | 2019-04-01 | 2019-05-31 | 南京科技职业学院 | A kind of multi-rotor unmanned aerial vehicle blade of fast demountable |
| CN112610627A (en) * | 2020-11-18 | 2021-04-06 | 洛阳轴承研究所有限公司 | Spring type overrunning clutch and variable pitch spring thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106195073B (en) | 2019-01-11 |
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Granted publication date: 20190111 Termination date: 20210708 |
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| CF01 | Termination of patent right due to non-payment of annual fee |