CN202249390U - Spring rocker assembly - Google Patents
Spring rocker assembly Download PDFInfo
- Publication number
- CN202249390U CN202249390U CN 201120346125 CN201120346125U CN202249390U CN 202249390 U CN202249390 U CN 202249390U CN 201120346125 CN201120346125 CN 201120346125 CN 201120346125 U CN201120346125 U CN 201120346125U CN 202249390 U CN202249390 U CN 202249390U
- Authority
- CN
- China
- Prior art keywords
- spring
- rocking arm
- bearing
- rocker
- fixed point
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a spring rocker assembly, comprising a support, a rocker and a spring, wherein the rocker is hinged with the support through a pin shaft; and two ends of the reset spring are respectively fixed on spring fixing points on the support and the rocker, so as to form a variable triangle. When the spring rocker assembly is used for opening a hatch cover of a plane, the support is fixed on a plane body, the hatch cover is fixedly connected with the other end of the rocker, the ultimate elongation length state of the reset spring is taken as an assistance point of the rocker, and the rocker drives the hatch cover to move around a hinge point between a positive limiting state and a negative limiting state at both sides of the assistance point, so as to open and close the hatch cover.
Description
Technical field
The application relates to aeroplane structure design, particularly a kind of rocker arm assembly that is used to open aircraft flap or hatch door.
Background technology
The use of aircraft system equipment, especially motor, frequency of maintenance be all than higher, when the design of fuselage and engine nacelle, system equipment, motor and annex thereof safeguarded and changed because of being convenient to, and designed a large amount of maintenances and flap is installed.These flaps can become quick-release type according to the examination and maintenance Frequency Design of system equipment and motor corresponding site.
At present, in the maintenance process of system equipment, motor and annex thereof, at first to open the flap lock, again flap opened to the angle that needs unlatching, with strut flap supported then, make flap keep the state that is unlocked, begin maintenance work at last.Therefore require to safeguard that flap must conveniently open and locking, it is supported fixing to require simultaneously to safeguard that flap is opened the back, and these requirements must be satisfied the characteristics of aircraft utilization, are exactly reliable and security insurance.The rocker arm assembly of present unlatching only plays hinge, and the position of strut also influenced normally carrying out of maintenance work, and operating procedure is more, and maintenance work is made troubles.
Summary of the invention
For the unlatching that solves the aircraft maintenance flap and remain on fixing holding state so that the carrying out of maintenance work, the application's purpose is to disclose a kind of rocker arm assembly and method for using thereof.
A kind of spring rocker arm assembly contains bearing, rocking arm and spring, it is characterized in that described bearing has the stationary plane of a protrusion; Described rocking arm is a rigid connecting rod; the termination of rocking arm is hinged through the stationary plane of bearing pin and bearing, on the stationary plane of bearing, also is provided with the first spring fixed point, on the body of rod of rocking arm, is provided with the second spring fixed point; described spring is a stretchable back-moving spring, and its two ends are separately fixed on the first spring fixed point and the second spring fixed point.Pin joint and the first spring fixed point, the second spring fixed point by rocking arm and bearing stationary plane have been formed variable leg-of-mutton three summits.
Above-mentioned spring rocker arm assembly can be used for opening the aircraft flap; During use, the bearing of rocker arm assembly is fixed on the airframe, flap is fixedly connected on the other end of rocking arm; With the maximum development length state of the back-moving spring power-assisted point that is rocking arm; rocking arm around pin joint between the just spacing state of power-assisted point both sides and negative spacing state around moving, rocking arm is in power-assisted when putting the just spacing state of a side, connects flap and is in closed condition; when rocking arm was in the negative spacing state of power-assisted point opposite side, the connection flap was in opening.
For limit rocking arm around moving scope, on the stationary plane of bearing, be respectively equipped with the rocking arm gag lever post vertical with stationary plane, comprise upper limit bar and lower limit bar.
The advantage of the utility model is that the spring rocker arm assembly utilizes the variable triangular structure of back-moving spring composition novel reliable; The tension force of back-moving spring has increased the damping insurance that flap is opened and supported; Reduced the operating procedure the when ground crew safeguards aircraft; Improve aircraft maintenance efficient, alleviate the rocker arm assembly and the open method of construction weight.
Below in conjunction with the embodiment accompanying drawing this application is described in further detail.
Description of drawings
Fig. 1 is the structural representation of rocker arm assembly
Fig. 2 is the deformation principle sketch map of rocker arm assembly
Fig. 3 is the motion state sketch map of rocker arm assembly
Numbering explanation among the figure: 1. bearing; 2. rocking arm; 3. spring; 4. the first spring fixed point axle; 5. upper arresting pin; 6. lower limit pin; 7. the second spring fixed point axle; 8. bearing pin; 9. flap
The specific embodiment
Referring to accompanying drawing, in the enforcement, referring to Fig. 2, bearing 1, rocking arm 2 select for use LY12-BCZYU sheet material machining to process; Spring 3 is selected HB3-1-1 * 6 * 15II for use; The bearing pin 8 of the first spring fixed point axle, 4 upper arresting pins 5 and lower limit pin 6, the second spring fixed point axle 7 and pin joint is selected the 30CrMnSiA bar for use.
In the motion state signal of Fig. 3 rocker arm assembly, see application advantage of the present invention more clearly; During concrete the application, with the maximum development length state of the back-moving spring power-assisted point that is rocking arm, rocking arm around pin joint between the just spacing state of power-assisted point both sides and negative spacing state around moving; rocking arm is in power-assisted when putting the just spacing state of a side; rocking arm 2 contacts with upper arresting pin 5, and the connection flap is in closed condition, when rocking arm is in the negative spacing state of power-assisted point opposite side; rocking arm 2 contacts with lower limit pin 6, and the connection flap is in opening.
Rocking arm 2 is in just spacing state, and rocking arm 2 contacts with upper arresting pin 5, and flap 9 is closed fully; The motion process of opening flap is that under external force, rocking arm 2 turns clockwise around bearing pin 8; Spring 3 clockwise rotates around its center of rotation first spring fixed point under the drive of rocking arm 2; Its length is elongated gradually, and when spring 3 length fade to when the longest, three-link mechanism is in power-assisted point position or becomes the dead-centre position; Rocking arm 2 continues to turn clockwise around bearing pin 8, and three-link mechanism will be through the power-assisted point, and the length of spring 3 shortens gradually; This moment is only under the boosting of spring force; rocking arm 2 will continue to clockwise rotate automatically, contacts with rocking arm 2 until lower limit pin 6, and restriction rocking arm 2 is rotated further; rocking arm 2 is in the lower limit state, realizes the complete opening and the lifting of flap.
The pass closed procedure of flap just in time is the inverse process of the opening process of flap, and the back-moving spring counterpart was built castering action when different was the flap complete opening, no longer by parts such as struts; And flap when closing fully spring flap is applied pretightning force; Can reduce the vibration of flap in the aircraft flight process, reduce the probability that crackle produces, and closing of flap played safety effect; Even under the situation that the flap lock lost efficacy, flap can not be unlocked yet.
In implementation process, the rigging position of rocker arm assembly can be done suitable adjustment as the case may be.As: the opening angle of flap can be regulated by the position of upper arresting pin 5 and lower limit pin 6, or limit pin hole is processed slotted hole, replaces alignment pin with bolt, pad and nut; The length of spring can be regulated by the position of the pin joint of spring fixed point and rocking arm and fixed body; Therefore formed another characteristic of rocker arm assembly: flexibly with general.
Claims (4)
1. spring rocker arm assembly; Contain bearing, rocking arm and spring, it is characterized in that described bearing has the fixed body of a protrusion, described rocking arm is a rigid connecting rod; the termination of rocking arm is hinged through the fixed body of bearing pin and bearing; on the fixed body of bearing, also be provided with the first spring fixed point, on the body of rod of rocking arm, be provided with the second spring fixed point, described spring is a stretchable back-moving spring; its two ends are separately fixed on the first spring fixed point and the second spring fixed point, has formed variable leg-of-mutton three summits by pin joint and the first spring fixed point, the second spring fixed point of rocking arm and bearing fixed body.
2. spring rocker arm assembly as claimed in claim 1 is characterized in that on the stationary plane of said bearing, being respectively equipped with the rocking arm gag lever post vertical with stationary plane.
3. according to claim 1 or claim 2 spring rocker arm assembly is characterized in that described rocking arm is half a frame type connecting rod of a rigidity, can be fixedly connected flap at the other end of rocking arm.
4. according to claim 1 or claim 2 spring rocker arm assembly; It is characterized in that the described first spring fixed point has first minor axis perpendicular to the bearing stationary plane; The second spring fixed point also has second minor axis perpendicular to the rocking arm body; Described back-moving spring is the spring of two parastates, is separately fixed between first minor axis and second minor axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120346125 CN202249390U (en) | 2011-09-14 | 2011-09-14 | Spring rocker assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120346125 CN202249390U (en) | 2011-09-14 | 2011-09-14 | Spring rocker assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202249390U true CN202249390U (en) | 2012-05-30 |
Family
ID=46110651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120346125 Expired - Lifetime CN202249390U (en) | 2011-09-14 | 2011-09-14 | Spring rocker assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202249390U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102874673A (en) * | 2012-09-13 | 2013-01-16 | 湖北江汉建筑工程机械有限公司 | Flipping gate buffering device for construction hoist cage |
| CN102991667A (en) * | 2011-09-14 | 2013-03-27 | 西安飞机工业（集团）有限责任公司 | Spring swing arm assembly and application method thereof |
-
2011
- 2011-09-14 CN CN 201120346125 patent/CN202249390U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102991667A (en) * | 2011-09-14 | 2013-03-27 | 西安飞机工业（集团）有限责任公司 | Spring swing arm assembly and application method thereof |
| CN102874673A (en) * | 2012-09-13 | 2013-01-16 | 湖北江汉建筑工程机械有限公司 | Flipping gate buffering device for construction hoist cage |
| CN102874673B (en) * | 2012-09-13 | 2014-02-26 | 湖北江汉建筑工程机械有限公司 | Flipping gate buffering device for construction hoist cage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |