CN212530050U - Structure for improving transmission locking reliability of worm gear - Google Patents
Structure for improving transmission locking reliability of worm gear Download PDFInfo
- Publication number
- CN212530050U CN212530050U CN202021083623.7U CN202021083623U CN212530050U CN 212530050 U CN212530050 U CN 212530050U CN 202021083623 U CN202021083623 U CN 202021083623U CN 212530050 U CN212530050 U CN 212530050U
- Authority
- CN
- China
- Prior art keywords
- worm
- worm wheel
- casing
- transmission
- wheel
- 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.)
- Active
Links
Images
Landscapes
- Gear Transmission (AREA)
Abstract
The utility model discloses an improve structure of worm gear transmission locking reliability, including casing, worm wheel and worm, be provided with the worm wheel in the casing and with worm wheel meshed worm, worm and worm wheel all rotate with the casing and be connected, still fixed mounting has electromagnetic braking ware on the casing, worm one end and electromagnetic braking ware's rotor fixed connection, worm wheel-worm transmission and electromagnetic braking ware's combination use, improve the resistant mechanical environment's of wing folding system ability in wing folding system, use the worm wheel-worm transmission of electromagnetic braking ware cooperation non-auto-lock to replace the worm wheel-worm transmission of auto-lock, can improve transmission efficiency.
Description
Technical Field
The utility model relates to an aircraft technical field especially relates to an improve structure of worm gear transmission locking reliability.
Background
The wings are indispensable parts of various fixed-wing airplanes, but have no function when parked on the ground, but occupy a large amount of space. The development source of the wing folding technology is the requirement of saving the deck space of the ship-based fixed wing aircraft; in addition, the width of the fuselage can be reduced by folding the wings, so that the airplane is convenient to transport and store, and the folding wing aircraft has certain significance for the design of common airplanes.
In the process of folding or unfolding the wings, due to the action of gravity and wind forces with different magnitudes in all directions, the load and direction of the wings are not unique and unstable, and change or even mutation is generated constantly; meanwhile, the carrier-based aircraft is influenced by mechanical environments such as vibration, impact, acceleration and the like; all have an effect on the wing folding system.
The wing folding system needs to be stable all the time under the action of the load and the influence of the mechanical environment.
The force of the self-locking worm gear is transmitted along the power source → the worm wheel → the wing in a one-way mode, and the force of the wing sudden change is transmitted along the wing → the worm gear → the worm, so that the problem of the wing sudden change in load can be well solved, but the mechanical environment can cause the worm to loosen, the self-locking failure can be caused, and the failure or even the danger of a wing folding system can be easily caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an improve structure of worm gear transmission locking reliability to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the structure for improving the transmission locking reliability of the worm gear comprises a shell, a worm wheel and a worm, wherein the worm wheel and the worm meshed with the worm wheel are arranged in the shell, the worm and the worm wheel are both rotatably connected with the shell, an electromagnetic brake is further fixedly mounted on the shell, and one end of the worm is fixedly connected with a rotor of the electromagnetic brake.
And two ends of the worm are rotatably connected with the shell through bearings.
The bearing is an angular contact ball bearing.
And a bearing seat and a clamping ring are further arranged on one side, far away from the electromagnetic brake, in the shell, one of the bearings is arranged in the bearing seat, and the clamping ring is matched with the worm.
The utility model has the advantages that:
1. the combined use of worm and gear drives and electromagnetic brakes improves the mechanical environment resistance of the wing folding system in the wing folding system.
2. The electromagnetic brake is matched with the non-self-locking worm gear-worm transmission to replace the self-locking worm gear-worm transmission, so that the transmission efficiency can be improved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a transmission schematic diagram of the present invention.
In the figure, a shell 1, a worm wheel 2, a worm 3, an electromagnetic brake 4, a rotor 41, a bearing seat 5, a clamping ring 6 and a bearing 7 are arranged.
Detailed Description
The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.
Referring to fig. 1-2, an embodiment of the present invention provides a structure for improving reliability of worm gear transmission locking, including housing 1, worm wheel 2 and worm 3, refer to fig. 1, be provided with worm wheel 2 in the housing 1 and with worm wheel 2 meshing worm 3, worm wheel 2 rotates with housing 1 to be connected, worm 3 both ends are all rotated with housing 1 through bearing 7 to be connected, bearing 7 chooses angular contact ball bearing for use, angular contact ball bearing has: the limit speed is than higher, friction torque is less, can bear advantages such as radial and axial load simultaneously, and casing 1 top still is provided with bearing frame 5 and rand 6, and rand 6 sets up and just matches the setting with worm 3 in bearing frame 5 top, and the bearing 7 of top sets up in bearing frame 5.
An electromagnetic brake 4 is fixedly arranged below the shell 1, and the lower end of the worm 3 is fixedly connected with a rotor 41 of the electromagnetic brake 4.
Transmission principle (see fig. 2):
the worm 3 is fixedly connected with a rotor 41 of the electromagnetic brake 4, the worm 3 is connected with power input through a key, a spline, a flat opening and the like, and the worm wheel 2 is connected with power output through a key, a spline and the like.
The worm wheel-worm transmission is stable in work, can obtain a large transmission ratio through single-stage transmission, is compact in structure, can be self-locked, and is lower in transmission efficiency when self-locking is carried out and when self-locking is not carried out.
Application in a wing folding system:
in the wing folding/unfolding process, the electromagnetic brake 4 is electrified to release the brake, the power drives the worm 3 to rotate, and the power is transmitted to the wing through the worm and the worm wheel; after the wings are folded/unfolded in place, the worm 3 stops rotating, and the electromagnetic brake 4 is powered off to brake the worm 3.
The effect played in the wing folding system is as follows:
in the prior art, a self-locking worm wheel-worm is independently used, so that the effects of isolating reverse loads from wings and protecting the safety of a wing folding system are achieved, but the worm can be loosened due to the existence of a mechanical environment, so that the self-locking is invalid.
The utility model discloses a worm wheel-worm and the mode that electromagnetic braking ware cooperation was used:
the electromagnetic brake 4 is matched with a non-self-locking worm gear, so that the transmission efficiency is higher than that of the self-locking worm gear in the prior art, and the reverse load of the wing can be isolated through the electromagnetic brake 4, so that the safety of a wing folding system is protected; and meanwhile, the mechanical environment resistance of the wing folding system can be effectively improved.
The electromagnetic brake 4 is matched with a self-locking worm gear, so that reverse loads from the wings can be effectively isolated through the worm gear-worm, and the safety of a wing folding system is protected; the position of the worm 3 is locked by the electromagnetic brake 4, so that the mechanical environment resistance of the wing folding system can be effectively improved. In addition, in this case, the electromagnetic brake 4 only locks the worm 3, and does not provide effective force for self-locking of the worm wheel and the worm, and the size of the electromagnetic brake is smaller than that of the electromagnetic brake adopting a non-self-locking worm wheel and worm.
In conclusion, no matter the electromagnetic brake 4 is matched with a self-locking or non-self-locking worm wheel and worm for use, the mechanical environment resistance of the wing folding system is effectively improved, and the condition that the worm wheel and worm self-locking fails in the prior art is avoided.
The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (4)
1. The utility model provides an improve structure of worm gear transmission locking reliability, includes casing (1), worm wheel (2) and worm (3), be provided with worm wheel (2) in casing (1) and with worm wheel (2) meshed worm (3), worm (3) and worm wheel (2) all rotate with casing (1) and are connected its characterized in that: still fixed mounting has electromagnetic braking ware (4) on casing (1), worm (3) one end and electromagnetic braking ware (4) rotor (41) fixed connection.
2. The structure for improving the locking reliability of the worm gear and worm transmission according to claim 1, wherein: both ends of the worm (3) are rotatably connected with the shell (1) through bearings (7).
3. The structure for improving the locking reliability of the worm and gear transmission according to claim 2, wherein: the bearing (7) is an angular contact ball bearing.
4. The structure for improving the locking reliability of the worm and gear transmission according to claim 2, wherein: and a bearing seat (5) and a clamping ring (6) are further arranged on one side, far away from the electromagnetic brake (4), in the shell (1), one of the bearings (7) is arranged in the bearing seat (5), and the clamping ring (6) is matched with the worm (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021083623.7U CN212530050U (en) | 2020-06-12 | 2020-06-12 | Structure for improving transmission locking reliability of worm gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021083623.7U CN212530050U (en) | 2020-06-12 | 2020-06-12 | Structure for improving transmission locking reliability of worm gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212530050U true CN212530050U (en) | 2021-02-12 |
Family
ID=74547249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021083623.7U Active CN212530050U (en) | 2020-06-12 | 2020-06-12 | Structure for improving transmission locking reliability of worm gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212530050U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115367099A (en) * | 2022-07-29 | 2022-11-22 | 成都飞机工业（集团）有限责任公司 | Lockpin linear driving device for aircraft wing folding system |
-
2020
- 2020-06-12 CN CN202021083623.7U patent/CN212530050U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115367099A (en) * | 2022-07-29 | 2022-11-22 | 成都飞机工业（集团）有限责任公司 | Lockpin linear driving device for aircraft wing folding system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2466316C2 (en) | Drive | |
| US8267350B2 (en) | Jam-tollerant actuator | |
| US10486800B2 (en) | Drive system for landing gear | |
| CN212530050U (en) | Structure for improving transmission locking reliability of worm gear | |
| CA3068990A1 (en) | Auxiliary power system for rotorcraft with folding propeller arms and crumple zone landing gear | |
| CN111486224A (en) | Transmission mechanism of wing electric folding system | |
| CN105253296B (en) | A kind of undercarriage control device | |
| CN104595451A (en) | Double-input-channel differential mechanism type electromechanical actuator | |
| EP3372494A1 (en) | Drive system for aircraft landing gear | |
| CN212225966U (en) | Transmission mechanism of wing electric folding system | |
| US10239608B2 (en) | Aircraft landing gear | |
| CN111038687B (en) | Mechanical dual-redundancy undercarriage retraction electric stay bar | |
| CN111907274B (en) | Ducted fan opening and closing device and application method thereof | |
| CN206750118U (en) | Foldable four rotor unmanned aircraft | |
| CN106828870B (en) | Multi-rotor unmanned aerial vehicle | |
| CN107575547B (en) | Electric transmission device of split type helicopter tail inclined beam lock pin mechanism and lock pin mode thereof | |
| CN111874226A (en) | Tilt rotor aircraft | |
| CN213892899U (en) | Modular cross type multi-rotor aircraft | |
| US10266254B2 (en) | Aircraft landing gear | |
| CN111911556B (en) | Bidirectional transmission conversion device and transmission method thereof | |
| CN112389645B (en) | Dual-motor-driven rotor electric folding mechanism | |
| CN110733632A (en) | landing gear retraction structure | |
| CN114750937B (en) | High-precision magnetic transmission tilting rotary wing aircraft | |
| CN201856896U (en) | Light aircraft | |
| CN201264517Y (en) | Light solar vehicle equal torque motor differential mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |