CN111824399B - Synchronous locking mechanism about aviation is with wheel - Google Patents
Synchronous locking mechanism about aviation is with wheel Download PDFInfo
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- CN111824399B CN111824399B CN202010509476.3A CN202010509476A CN111824399B CN 111824399 B CN111824399 B CN 111824399B CN 202010509476 A CN202010509476 A CN 202010509476A CN 111824399 B CN111824399 B CN 111824399B
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- disc
- wheel
- locking mechanism
- movable disc
- sliding sleeve
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a left-right synchronous locking mechanism of an aircraft wheel, which comprises a left wheel locking mechanism and a right wheel locking mechanism, wherein the left wheel locking mechanism comprises a sliding sleeve, a movable disc, a pressing disc, a spring and a pressing nut, the movable disc is fixedly connected with the left wheel so that the movable disc and the left wheel are relatively static, the movable disc extends into the sliding sleeve, one side of the movable disc is the inner wall of the sliding sleeve, and the other side of the movable disc is the pressing disc; the other side of the compression disc is provided with a spring, and the other side of the spring is provided with a compression nut; the right wheel locking mechanism is consistent with the left wheel locking mechanism in structure. The invention has simple structure, convenient and quick installation and disassembly and repeated use; the problem that the machine wheel is locked under the condition of no hydraulic drive is solved; under the condition of not rotating the machine wheels, the problem of synchronous locking of the left machine wheel and the right machine wheel is solved; the left and right wheels can be synchronously locked and unlocked without being influenced by positions and angles.
Description
Technical Field
The invention belongs to the technical field of brake locking mechanisms, relates to a locking mechanism for realizing mechanical locking of aircraft wheels, and particularly relates to a left-right synchronous locking mechanism for aircraft wheels.
Background
The airplane wheel braking system of the aviation helicopter is mainly divided into a hydraulic braking mode and a non-hydraulic braking mode, wherein the hydraulic braking mode mainly comprises that hydraulic oil pushes a brake disc and a brake sheet in a pipeline by means of braking pressure, a braking gap is eliminated, friction force is generated between the brake disc and the brake sheet, and accordingly airplane wheel locking is achieved. The hydraulic braking-free mode is mainly divided into two modes, one mode is a sledge structure, the sledge is used for replacing a machine wheel, the function met by the machine wheel is realized, the unmanned helicopter stops on the deck, and the conventional sledge structure cannot drag on the deck because the hydraulic source is not used for driving the machine wheel to brake, and the stopping position of the unmanned helicopter is limited; another hydraulic braking mode is a wheel braking system, and the adopted mode is a wheel block structure; however, the existing wheel brake system can only realize the horizontal locking function and cannot carry out traction movement.
Disclosure of Invention
In order to solve the problems, the invention provides a left-right synchronous locking mechanism for aviation wheels, which can realize the locking function of the aviation wheels at any angle at any position on the premise of no hydraulic source driving brake.
The technical scheme of the invention is as follows: the left wheel locking mechanism and the right wheel locking mechanism for aviation comprise a left wheel locking mechanism and a right wheel locking mechanism, wherein the left wheel locking mechanism comprises a sliding sleeve, a movable disc, a pressing disc, a spring and a pressing nut, the movable disc is fixedly connected with the left wheel so that the movable disc and the left wheel are relatively static, the movable disc extends into the sliding sleeve, one side of the movable disc is the inner wall of the sliding sleeve, and the other side of the movable disc is the pressing disc; the other side of the compression disc is provided with a spring, and the other side of the spring is provided with a compression nut; the right wheel locking mechanism is consistent with the left wheel locking mechanism in structure.
Further, the spring is a disc spring.
Further, the lower end of the sliding sleeve is provided with a plurality of key grooves, and the pressing disc is inserted into the key grooves.
Further, a locking screw assembly is further arranged, a jack matched with the locking screw assembly is arranged on the compression nut, and the locking screw assembly penetrates through the jack of the compression nut and is inserted into the key groove.
Further, at least three key grooves are formed in the lower end of the sliding sleeve, and the key grooves are respectively used for inserting a pressing disc, a locking screw assembly during locking and a locking screw assembly during non-locking.
Further, the locking screw assembly comprises a bolt and a locking screw, the bolt penetrates through the compression nut to be inserted into the key groove, the bolt and the compression nut are provided with threaded holes which are overlapped and matched with the locking screw, and the locking screw is connected with and fixes the bolt and the compression nut through the threaded holes.
Further, a gap is formed between the movable disc and the inner wall of the sliding sleeve as well as between the movable disc and the pressing disc, and the gap is 0.5-1 mm.
Further, the compression nut moves horizontally relative to the lower end of the sliding sleeve through torque, after the compression nut moves towards the direction of the spring and is screwed, gaps between the movable disc and the inner wall of the sliding sleeve as well as between the movable disc and the compression disc are eliminated, and the left machine wheel is locked by a certain static torque index.
The invention has the advantages that:
1. the structure is simple, the installation and the disassembly are convenient and quick, and the device can be reused;
2. the problem that the machine wheel is locked under the condition of no hydraulic drive is solved;
3. under the condition of not rotating the machine wheels, the problem of synchronous locking of the left machine wheel and the right machine wheel is solved;
4. the left and right wheels can be synchronously locked and unlocked without being influenced by the position (ground or ship surface) and the angle.
Drawings
FIG. 1 is a schematic view of a locking mechanism embodiment of the present invention;
wherein, 1-sliding sleeve, 2-movable disc, 3-compressing disc, 4-spring, 5-lock nut assembly, 6-compression nut.
Detailed Description
This section is an embodiment of the present invention for explaining and explaining the technical solution of the present invention.
A left and right synchronous locking mechanism of an aircraft wheel comprises a left wheel locking mechanism and a right wheel locking mechanism.
The left wheel locking mechanism comprises a sliding sleeve 1, a movable disc 2, a compression disc 3, a spring 4 and a compression nut 6, wherein the movable disc 2 is fixedly connected with the left wheel so that the movable disc 2 and the left wheel are relatively static, the movable disc 2 extends into the sliding sleeve 1, one side of the movable disc 2 is the inner wall of the sliding sleeve 1, and the other side of the movable disc 2 is the compression disc 3; the other side of the compression disc 3 is provided with a spring 4, and the other side of the spring 4 is provided with a compression nut 6; the spring 4 is a disc spring; the lower extreme of sliding sleeve 1 is equipped with a plurality of keyway, compresses tightly 3 and inserts on the keyway. The locking screw assembly 5 is further arranged, the compression nut 6 is provided with a jack matched with the locking screw assembly 5, and the locking screw assembly 5 is inserted into the key groove through the jack of the compression nut 6. The key grooves at the lower end of the sliding sleeve 1 are at least three and are respectively used for inserting the pressing disc 3, the locking screw assembly 5 during locking and the locking screw assembly 5 during non-locking. The locking screw assembly 5 comprises a bolt and a locking screw, the bolt penetrates through the compression nut 6 to be inserted in the key groove, the bolt and the compression nut 6 are provided with threaded holes which are overlapped and matched with the locking screw, and the locking screw is connected with and fixes the bolt and the compression nut 6 through the threaded holes. Gaps are formed between the movable disc 2 and the inner wall of the sliding sleeve 1 and between the movable disc 2 and the pressing disc 3, and the gaps between the movable disc 2 and the pressing disc 3 are 0.5-1 mm. The compression nut 6 moves horizontally relative to the lower end of the sliding sleeve 1 through torque, after the compression nut 6 moves towards the direction of the spring 4 and is screwed, gaps between the movable disc 2 and the inner wall of the sliding sleeve 1 and between the movable disc 3 are eliminated, and the left machine wheel is locked due to a certain static torque index.
The right wheel locking mechanism adopts another set of sliding sleeve, a movable disc, a pressing disc, a spring, a locking screw component and a pressing nut, and the structural form of the right wheel locking mechanism is completely consistent with that of the left wheel locking mechanism.
Another embodiment of the present invention will be described below with reference to the accompanying drawings.
The scheme of the invention is schematically shown in fig. 1, and mainly comprises a sliding sleeve 1, a movable disc 2, a pressing disc 3, a disc spring 4, a locking screw assembly 5 and a pressing nut 6. The movable disc 2 and the machine wheel (tool) are fixed through fixed screw fixation, so that the machine wheel and the movable disc are kept relatively static, and a certain tightening torque is applied to the compression nut 6 to eliminate the gap among the compression disc 3, the movable disc 2 and the sliding sleeve 1, so that a certain static torque index is achieved, and the machine wheel is locked (a consistent method is adopted for left and right machine wheels); and under the action of moment applied by contacting the compression nut 6, gaps exist among the compression disc 3, the movable disc 2 and the sliding sleeve 1, so that unlocking is finished.
This patent theory of operation mainly is 2 states, does respectively: ground parking (locked) and coasting (unlocked).
Ground parking state (locked): when the machine wheel rolls on the ground or the ship surface to stop, a certain tightening torque is applied to the compression nut, gaps among the compression disc 3, the movable disc 2 and the sliding sleeve 1 are eliminated, and after a certain static torque index is reached, a locking screw is inserted, so that locking is completed.
Slide state (unlock): when the machine wheel rolls on the ground or the ship surface, the locking screw is pulled out from the locking hole, the tightening moment among the pressing disc 3, the movable disc 2 and the sliding sleeve 1 is eliminated, and after the gap among the pressing disc 3, the movable disc 2 and the sliding sleeve 1 is restored, the locking screw is reinserted, so that unlocking is completed.
The structure is installed and used from 2018, so far, the external field reaction is good, and the structure has better use evaluation.
Claims (4)
1. The left-right synchronous locking mechanism for the aviation machine wheels comprises a left machine wheel locking mechanism and a right machine wheel locking mechanism, and is characterized in that the left machine wheel locking mechanism comprises a sliding sleeve (1), a movable disc (2), a pressing disc (3), a spring (4) and a pressing nut (6), the movable disc (2) is fixedly connected with the left machine wheel so that the movable disc (2) and the left machine wheel are relatively static, the movable disc (2) extends into the sliding sleeve (1), one side of the movable disc (2) is the inner wall of the sliding sleeve (1), and the other side of the movable disc is the pressing disc (3); the other side of the compression disc (3) is provided with a spring (4), and the other side of the spring (4) is provided with a compression nut (6); the right wheel locking mechanism is consistent with the left wheel locking mechanism in structure; the spring (4) is a disc spring; a gap is reserved between the movable disc (2) and the inner wall of the sliding sleeve (1) and between the movable disc and the pressing disc (3);
the locking screw assembly (5) is further arranged, a jack matched with the locking screw assembly (5) is arranged on the compression nut (6), and the locking screw assembly (5) penetrates through the jack of the compression nut (6) to be inserted into the key slot; the locking screw assembly (5) comprises a bolt and a locking screw, the bolt penetrates through the compression nut (6) to be inserted into the key slot, the bolt and the compression nut (6) are provided with overlapped threaded holes matched with the locking screw, and the locking screw is connected with and fixes the bolt and the compression nut (6) through the threaded holes; the compression nut (6) horizontally moves relative to the lower end of the sliding sleeve (1) through torque, after the compression nut (6) moves towards the direction of the spring (4) to be screwed, gaps between the movable disc (2) and the inner wall of the sliding sleeve (1) and gaps between the movable disc and the compression disc (3) are eliminated, and the left machine wheel is locked by a certain static torque index.
2. The left-right synchronous locking mechanism for the aircraft wheel according to claim 1, wherein a plurality of key grooves are formed in the lower end of the sliding sleeve (1), and the pressing disc (3) is inserted into the key grooves.
3. The left-right synchronous locking mechanism of the aircraft wheel according to claim 1, wherein at least three key grooves are formed in the lower end of the sliding sleeve (1), and the three key grooves are respectively used for inserting a pressing disc (3), a locking screw assembly (5) during locking and a locking screw assembly (5) during non-locking.
4. The synchronous locking mechanism for the left and right of the aircraft wheel according to claim 1, wherein the gap between the movable disc (2) and the pressing disc (3) is 0.5-1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010509476.3A CN111824399B (en) | 2020-06-05 | 2020-06-05 | Synchronous locking mechanism about aviation is with wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010509476.3A CN111824399B (en) | 2020-06-05 | 2020-06-05 | Synchronous locking mechanism about aviation is with wheel |
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| Publication Number | Publication Date |
|---|---|
| CN111824399A CN111824399A (en) | 2020-10-27 |
| CN111824399B true CN111824399B (en) | 2023-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010509476.3A Active CN111824399B (en) | 2020-06-05 | 2020-06-05 | Synchronous locking mechanism about aviation is with wheel |
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| CN111824399A (en) | 2020-10-27 |
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