CN110920873A - Pedal brake mechanism based on torsion bar - Google Patents
Pedal brake mechanism based on torsion bar Download PDFInfo
- Publication number
- CN110920873A CN110920873A CN201911297922.2A CN201911297922A CN110920873A CN 110920873 A CN110920873 A CN 110920873A CN 201911297922 A CN201911297922 A CN 201911297922A CN 110920873 A CN110920873 A CN 110920873A
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- Prior art keywords
- pedal
- torsion bar
- brake
- sensor
- brake mechanism
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- 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
- B64C25/44—Actuating mechanisms
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Braking Elements And Transmission Devices (AREA)
Abstract
The patent relates to a pedal brake mechanism based on torsion bar, its characterized in that includes: the hollow shaft (6) penetrates through a pedal support (9) and a rotation axis of the pedal (7); the torsion bar (5) penetrates through the hollow shaft (6), one end of the torsion bar (5) is fixed on the pedal support (9), the other end of the torsion bar (5) is fixed on the pedal (7), the brake sensor (1) is installed on the pedal support (9), the input end of the brake sensor is connected with the pedal (7) through the connecting mechanism, when the pedal (7) rotates, torsional deformation is generated on the torsion bar (5), brake force feedback is provided for a pilot, and the input end of the brake sensor (1) rotates to generate a brake electric signal for wheel brake control. The invention provides braking force by torsion deformation of the torsion bar and provides braking electric signals by adopting the angle sensor; the brake structure is compact, the space utilization rate is high, and the weight is light; the defects of poor transmission linearity and heavy weight of a brake mechanism in a compression spring form are overcome.
Description
Technical Field
The invention belongs to the field of application and development of airplane flight control operating devices, and relates to a pedal braking mechanism for a pilot, which is used for transmitting airplane pedal braking force signals.
Background
The integrated pedals are attached to a flight control operating device of the airplane and are airborne equipment for a pilot to send a course deflection control command signal and a brake command signal. The brake mechanism of the pedal is realized by the action that a pilot rotates the ankle to pedal, and the pedal deflects along with the pedal pedaling of the pilot to generate a corresponding electric signal for controlling the braking of the airplane wheel.
At present, a compression spring form is adopted by a pedal brake mechanism of an airplane at home and abroad to provide brake force, the pedal brake mechanism is simple to install and debug, but the deflection angle of a pedal is directly converted into linear compression motion of the spring, so that the brake signal transmission linearity is poor, and the weight of the brake mechanism is heavy.
The torsion bar has a straight rod as its main body and serves as a spring by torsional deformation of the rod. The torsion bar has the characteristics of light weight, simple structure and small occupied space, is widely applied to an automobile suspension device at present, but is not applied to the design of an airplane pedal brake mechanism.
With the requirement on the weight design of airplane airborne products being increased, a light pedal brake design is urgently needed to realize the light weight design of airplane pedals.
Disclosure of Invention
The purpose of the invention is: in order to solve the defects of heavy weight and poor transmission linearity of the pedal brake mechanism, the invention designs a pedal brake mechanism design based on a torsion bar, and the pedal brake mechanism design is convenient to install, simple in structure, easy to maintain and debug and capable of effectively reducing the weight of the pedal brake mechanism.
The technical scheme of the invention is as follows: the patent relates to a pedal brake mechanism based on torsion bar, its characterized in that includes: the brake device comprises a pedal 7, a torsion bar 5, a hollow shaft 6, a pedal support 9, a brake sensor 1 and the like, wherein the hollow shaft 6 penetrates through the pedal support 9 and a pedal 7 rotating shaft; the torsion bar 5 penetrates through the hollow shaft 6, one end of the torsion bar 5 is fixed on the pedal support 9, the other end of the torsion bar 5 is fixed on the pedal 7, when the pedal 7 rotates, the torsion bar 5 generates torsional deformation to provide braking force feedback for a pilot, the brake sensor 1 is arranged on the pedal support 9, and the input end of the brake sensor is connected with the pedal 7 through a connecting mechanism.
Preferably, the connecting mechanism is in the form of: the brake sensor 1 and a rotating shaft of a pedal 7 are coaxially arranged, the output small shaft 3 is fixed on the pedal 7, and the output small shaft 3 is connected with the brake sensor 1 through a coupler 2, so that the deflection angle of the pedal 7 is accurately transmitted to the brake sensor 1 during braking.
Preferably, the connecting mechanism is in the form of: the brake sensor 1 and the pedal 7 are arranged in a different-axis way, the transmission connecting rod 12 is hinged with the pedal 7, one end of the output rocker 11 is fixedly connected with the input shaft of the brake sensor 1, and the other end is hinged with the transmission connecting rod 12.
Preferably, the transmission structure form of the connecting mechanism is as follows: one end of the brake sensor 1 is hinged with the pedal 7, and the other end is hinged with the pedal support 9.
Preferably, the stop bolt 8 is mounted on the pedal support 9. The length of the limiting bolt 13 screwed into the pedal support 9 is adjustable, and the maximum deflection angle of the pedal 7 is adjusted by adjusting the screwing length of the limiting bolt 13.
Preferably, the pedal initial position adjusting bolt 10 is installed on the pedal support 9. The screwing length of the pedal initial position adjusting bolt 10 is adjustable. The initial installation angle of the pedal 7 is adjusted by adjusting the screwing length of the pedal initial position adjusting bolt 10.
Preferably, end caps 8 are mounted on the pedal 7 and the pedal support 8, respectively, to achieve axial positioning of the torsion bar 5.
Preferably, the pedal support 9 is hinged to the main rocker arm and the connecting rod of the aircraft pedal mechanism.
The invention has the advantages that: the invention designs a pedal brake mechanism based on a torsion bar, which utilizes the torsion bar to provide brake force by torsional deformation and adopts an angle sensor to provide brake electric signals; the brake structure is compact, the space utilization rate is high, and the weight is light; the defects of poor transmission linearity and heavy weight of a brake mechanism in a compression spring form are overcome.
Drawings
FIG. 1 is a schematic view of a brake mechanism
FIG. 2 is a schematic view of a brake mechanism (with sensors arranged coaxially)
FIG. 3 is a schematic view of the structure of the brake mechanism (with sensors arranged parallel to the axis)
FIG. 4 is a schematic view of the structure of the brake mechanism (linear sensor arrangement)
Detailed Description
The following further describes embodiments of the present invention in detail by way of specific embodiments with reference to the accompanying drawings.
As shown in fig. 1 to 4, a torsion bar type pedal brake mechanism is mounted on an airplane pedal, a torsion bar 5 is fixed on a pedal support 9 and a pedal 7 through a hollow shaft 6, and a pilot rotates an ankle pedal to drive the torsion bar to be torsionally deformed so as to realize left and right airplane wheel brake control. The output end of the torsion bar is connected with a brake sensor 1 through a coupler 2, and a brake angle signal wire of the brake sensor 1 is connected with an aircraft cable through an electric connector, so that a switch signal is transmitted to an aircraft brake system, and brake control is realized.
The installation method of the torsion bar pedal brake mechanism comprises the following steps:
step 1: the hollow shaft 6 penetrates through the pedal support 9 and the pedal 7 revolving shaft;
step 2: the torsion bar 5 passes through the hollow shaft 6, and two ends of the torsion bar are fixed on the pedal support 9 and the pedal 7 through splines;
step 2: the brake sensor 1 is fixed with the pedal support 9 through a screw;
and 4, step 4: the input end of the brake sensor 1 is connected with a pedal 7 through a connecting mechanism;
and 5: and a signal wire led out from the brake sensor 1 is connected with an onboard cable through an electric connector.
Claims (10)
1. A pedal brake mechanism based on a torsion bar, comprising: the brake device comprises a pedal (7), a torsion bar (5), a hollow shaft (6), a pedal support (9) and a brake sensor (1), wherein the hollow shaft (6) penetrates through the pedal support (9) and a rotating shaft of the pedal (7); the torsion bar (5) penetrates through the hollow shaft (6), one end of the torsion bar is fixed on the pedal support (9), and the other end of the torsion bar is fixed on the pedal (7); the brake sensor (1) is arranged on the pedal support (9), and the input end of the brake sensor is connected with the pedal (7) through a connecting mechanism; when the pedal (7) rotates, the torsion bar (5) generates torsional deformation to provide braking force feedback for pilots, and the input end of the braking sensor (1) rotates to generate a braking electric signal for controlling the braking of the airplane wheel.
2. A torsion bar-based pedal brake mechanism according to claim 1, wherein the attachment mechanism is configured to: brake sensor (1) and pedal (7) rotation axis are coaxial to be arranged, and output staff (3) are fixed on pedal (7), and output staff (3) are connected with brake sensor (1) through shaft coupling (2), and the angle of pedal (7) deflection is accurately transmitted for brake sensor (1) when guaranteeing to brake.
3. A torsion bar-based pedal brake mechanism according to claim 1, wherein the attachment mechanism is configured to: the brake sensor (1) and the pedal (7) are arranged in parallel with the rotation axis, the transmission connecting rod (12) is hinged with the pedal (7), one end of the output rocker arm (11) is fixedly connected with the input shaft of the brake sensor (1), and the other end of the output rocker arm is hinged with the transmission connecting rod (12).
4. A pedal brake mechanism based on torsion bars according to claim 1, wherein the linkage mechanism transmission structure is in the form of: one end of the brake sensor (1) is hinged with the pedal (7), and the other end is hinged with the pedal support (9).
5. A torsion bar based pedal brake mechanism according to claim 1, wherein the stop bolt (10) is mounted on the pedal support (9).
6. The pedal brake mechanism based on torsion bar according to claim 5, wherein the length of the stop bolt (10) screwed into the pedal support (9) is adjustable, and the maximum deflection angle of the pedal (7) is adjusted by adjusting the length of the screw of the stop bolt (13).
7. The pedal brake mechanism based on torsion bar according to claim 1, wherein the pedal initial position adjusting bolt (10) is installed on the pedal support (9).
8. The pedal brake mechanism based on torsion bar according to claim 7, wherein the initial pedal position adjusting bolt (10) is screwed in a length adjustable, and the initial installation angle of the pedal (7) is adjusted by adjusting the initial pedal position adjusting bolt (10) screwed in a length adjustable.
9. A torsion bar based pedal brake mechanism according to claim 1, wherein end caps (8) are mounted to the pedal (7) and pedal support (8) respectively to provide axial positioning of the torsion bar (5).
10. The torsion bar-based pedal brake mechanism according to claim 1, wherein the pedal support (9) is hingedly connected to the main rocker arm and the connecting rod of the aircraft pedal mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911297922.2A CN110920873A (en) | 2019-12-13 | 2019-12-13 | Pedal brake mechanism based on torsion bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911297922.2A CN110920873A (en) | 2019-12-13 | 2019-12-13 | Pedal brake mechanism based on torsion bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110920873A true CN110920873A (en) | 2020-03-27 |
Family
ID=69863898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911297922.2A Pending CN110920873A (en) | 2019-12-13 | 2019-12-13 | Pedal brake mechanism based on torsion bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110920873A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4365847A (en) * | 1980-03-25 | 1982-12-28 | Societe Nationale Industrielle Aerospatiale | Process and device for braking a wheel by integrated pressure pulses |
| JP2000142338A (en) * | 1998-11-10 | 2000-05-23 | Toyota Motor Corp | Brake pedal operating device for automobile |
| JP2004090797A (en) * | 2002-08-30 | 2004-03-25 | Aisin Seiki Co Ltd | Release position adjusting device for foot pedal in vehicle |
| CN103057697A (en) * | 2013-01-07 | 2013-04-24 | 中国商用飞机有限责任公司 | Rudder pedal control device and control method for airplane |
| CN203561912U (en) * | 2013-11-27 | 2014-04-23 | 连云港杰瑞电子有限公司 | Foot-operated controller |
| CN104691747A (en) * | 2015-02-05 | 2015-06-10 | 南京航空航天大学 | Air vehicle full-electric braking device and method thereof |
| CN107416186A (en) * | 2017-04-06 | 2017-12-01 | 中国商用飞机有限责任公司 | Electric pedal control device of airplane |
| CN207550167U (en) * | 2017-10-10 | 2018-06-29 | 南京讯联智能科技有限公司 | A kind of brake system of band sensing output |
| CN109849876A (en) * | 2018-12-11 | 2019-06-07 | 中国航空工业集团公司成都飞机设计研究所 | A kind of brake assemblies based on pedal feedback, working condition discrimination method, device and storage medium |
-
2019
- 2019-12-13 CN CN201911297922.2A patent/CN110920873A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4365847A (en) * | 1980-03-25 | 1982-12-28 | Societe Nationale Industrielle Aerospatiale | Process and device for braking a wheel by integrated pressure pulses |
| JP2000142338A (en) * | 1998-11-10 | 2000-05-23 | Toyota Motor Corp | Brake pedal operating device for automobile |
| JP2004090797A (en) * | 2002-08-30 | 2004-03-25 | Aisin Seiki Co Ltd | Release position adjusting device for foot pedal in vehicle |
| CN103057697A (en) * | 2013-01-07 | 2013-04-24 | 中国商用飞机有限责任公司 | Rudder pedal control device and control method for airplane |
| CN203561912U (en) * | 2013-11-27 | 2014-04-23 | 连云港杰瑞电子有限公司 | Foot-operated controller |
| CN104691747A (en) * | 2015-02-05 | 2015-06-10 | 南京航空航天大学 | Air vehicle full-electric braking device and method thereof |
| CN107416186A (en) * | 2017-04-06 | 2017-12-01 | 中国商用飞机有限责任公司 | Electric pedal control device of airplane |
| CN207550167U (en) * | 2017-10-10 | 2018-06-29 | 南京讯联智能科技有限公司 | A kind of brake system of band sensing output |
| CN109849876A (en) * | 2018-12-11 | 2019-06-07 | 中国航空工业集团公司成都飞机设计研究所 | A kind of brake assemblies based on pedal feedback, working condition discrimination method, device and storage medium |
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Address after: No.5 courtyard, Shijun street, Renhe Town, Shunyi District, Beijing Applicant after: AVIC BEIJING KEEVEN AVIATION INSTRUMENT Co.,Ltd. Address before: 100086, No. 43 West Third Ring Road, Beijing, Haidian District Applicant before: AVIC BEIJING KEEVEN AVIATION INSTRUMENT Co.,Ltd. |