CN219452848U - Gear transmission clearance self-adaptive compensation device - Google Patents
Gear transmission clearance self-adaptive compensation device Download PDFInfo
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- CN219452848U CN219452848U CN202320150783.6U CN202320150783U CN219452848U CN 219452848 U CN219452848 U CN 219452848U CN 202320150783 U CN202320150783 U CN 202320150783U CN 219452848 U CN219452848 U CN 219452848U
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- gear
- hole
- cushion block
- clearance
- gap adjusting
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The utility model discloses a gear transmission clearance self-adaptive compensation device, which comprises a driving gear, a driven gear and a clearance adjusting gear, wherein the driving gear is connected with the driven gear; the driven gear is coaxially and fixedly connected with a rotating shaft, and a lug is arranged on the end face of the top of the driven gear; the gap adjusting gear is nested on the rotating shaft and is in sliding connection with the rotating shaft, a strip-shaped through hole is formed in the end face of the gap adjusting gear, one side of the through hole in the length direction is a vertical surface, the other side of the through hole is an inclined surface, a gap adjusting cushion block is arranged in the through hole, one side of the gap adjusting cushion block is a vertical surface, the other side of the gap adjusting cushion block is an inclined surface, the inclined surface of the gap adjusting cushion block is attached to the inclined surface of the through hole, and a spring is arranged between the bottom of the gap adjusting cushion block and the top of the driven gear; the lug extends into the through hole, the vertical surface of the gap adjusting cushion block is attached to one surface of the lug, and the other surface of the lug is arranged in a gap with the vertical surface of the through hole; one side of the gear teeth in the driving gear is meshed with the driven gear, and the other side is meshed with the clearance adjusting gear. Thereby improving the gear transmission precision; the phenomenon of large friction force and even clamping stagnation in gear transmission is solved.
Description
Technical Field
The utility model belongs to the field of gear transmission, and relates to a gear transmission clearance self-adaptive compensation device.
Background
The gear transmission is a device for transmitting motion and power by a gear pair, has the advantages of more accurate transmission, high efficiency, compact structure, reliable work and long service life, and is widely applied to a mechanical transmission mode in an aircraft cockpit control system. The adjustment mode of the gear transmission gap on the airplane usually adopts manual adjustment, and the manual adjustment is carried out according to the condition after the gear assembly. However, common failure modes in the gear transmission process mainly include gear tooth breakage, tooth surface pitting, tooth surface abrasion, tooth surface gluing, tooth surface plastic deformation and the like, wherein the tooth surface abrasion is the most main failure mode of the gear transmission of the control system of the aviation cockpit. When gears mesh, wear of the gear surfaces can occur due to relative sliding, particularly when external hard particles enter between the meshing surfaces. After the gears are gradually worn, gaps between the gears are increased, so that idle strokes are easily generated in the forward and backward rotation meshing process of the gears, the transmission precision of the gears is affected, and the flight quality of an airplane is reduced. Meanwhile, the existing aviation aircraft flight environment is at-55-70 ℃, and in order to ensure transmission accuracy, the gear transmission structure in the field of an aviation cockpit control system is too small in gear backlash, and friction force and even gear jamming phenomenon are easily caused by thermal expansion and cold contraction under high and low temperature environments, so that flight safety is affected.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides a gear transmission clearance self-adaptive compensation device which can adaptively solve the problem that a clearance is overlarge to form an idle stroke due to gear transmission abrasion, thereby improving the gear transmission precision; meanwhile, the phenomenon of large friction force and even clamping stagnation under the high and low temperature conditions caused by too small backlash in the existing gear transmission is also solved.
In order to achieve the purpose, the utility model is realized by adopting the following technical scheme:
a gear transmission clearance self-adaptive compensation device comprises a driving gear, a driven gear and a clearance adjusting gear;
the driven gear is coaxially and fixedly connected with a rotating shaft, and a lug is arranged on the end face of the top of the driven gear; the gap adjusting gear is nested on the rotating shaft and is in sliding connection with the rotating shaft, a strip-shaped through hole is formed in the end face of the gap adjusting gear, one side of the through hole in the length direction is a vertical surface, the other side of the through hole is an inclined surface, a gap adjusting cushion block is arranged in the through hole, one side of the gap adjusting cushion block is a vertical surface, the other side of the gap adjusting cushion block is an inclined surface, the inclined surface of the gap adjusting cushion block is attached to the inclined surface of the through hole, and a spring is arranged between the bottom of the gap adjusting cushion block and the top of the driven gear; the lug extends into the through hole, the vertical surface of the gap adjusting cushion block is attached to one surface of the lug, and the other surface of the lug is arranged in a gap with the vertical surface of the through hole;
one side of the gear teeth in the driving gear is meshed with the driven gear, and the other side is meshed with the clearance adjusting gear.
Preferably, the clearance adjusting cushion block is provided with a waist-shaped round hole, a bolt penetrates through the waist-shaped round hole, the bottom of the bolt is connected with the top of the driven gear, and a limit nut is arranged above the waist-shaped round hole.
Preferably, spring grooves are formed between the bottom of the gap adjusting cushion block and the top of the driven gear, and two ends of the spring are respectively located in the spring grooves.
Preferably, the inclination of the inclined plane of the gap adjusting cushion block and the inclined plane of the through hole are all 8-11 degrees.
Preferably, the spring has a stiffness coefficient greater than 23N/mm.
Preferably, a bearing is arranged on the rotating shaft and is positioned at the top of the clearance adjusting gear.
Preferably, the driving gear is meshed with a transition gear, and the transition gear is respectively meshed with the driven gear and the clearance adjusting gear.
Preferably, the number of the transition gears is two, and the transition gears are respectively meshed with the driven gears and the clearance adjusting gears.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, due to the reaction force of the spring, the gap adjusting cushion block outwards moves, meanwhile, the lug on the driven gear props against the gap adjusting cushion block, so that dislocation is generated around the circumference of the gap adjusting gear, and at the moment, when the driving gear rotates clockwise, the driving gear is meshed with the gap adjusting gear; when the driving gear rotates counterclockwise, the driving gear is engaged with the driven gear. The gear clearance adjusting structure is utilized to respectively finish the clockwise rotation and the anticlockwise rotation of the gears through different gear sets of the same shaft system, the structure does not need to manually adjust the meshing clearance between the gears, and the phenomenon that the clearance is overlarge to form idle stroke due to gear transmission abrasion is solved through self adaption, so that the gear transmission precision is improved; meanwhile, the phenomenon of large friction force and even clamping stagnation under the high and low temperature conditions caused by too small backlash in the existing gear transmission is also solved.
Drawings
FIG. 1 is an isometric view of a gear lash adaptive compensation device;
FIG. 2 is a cross-sectional view of a lash adjustment structure of a lash adjustment gear set.
Wherein: 1-a driving gear; 2-driven gears; 3-gap adjusting gears; 4-rotating shaft; 5-bump; 6-through holes; 7-adjusting gap cushion blocks; 8-a spring; 9-a first transition gear; 10-a second transition gear.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, the gear transmission clearance self-adaptive compensation device of the utility model comprises a driving gear 1, a driven gear 2 and a clearance adjusting gear 3.
The driven gear 2 is coaxially and fixedly connected with a rotating shaft 4, and a lug 5 is arranged on the end face of the top of the driven gear 2.
The gap adjusting gear 3 is nested on the rotating shaft 4 and is in sliding connection with the rotating shaft 4, the gap adjusting gear 3 is positioned above the driven gear 2, a strip-shaped through hole 6 is formed in the end face of the gap adjusting gear 3, as shown in fig. 2, one side of the through hole 6 in the length direction is a vertical face, the other side of the through hole is an inclined face, a gap adjusting cushion block 7 is arranged in the through hole 6, one side of the gap adjusting cushion block 7 is a vertical face, the other side of the gap adjusting cushion block is an inclined face, the inclined face of the gap adjusting cushion block 7 is attached to the inclined face of the through hole 6, and a spring 8 is arranged between the bottom of the gap adjusting cushion block 7 and the top of the driven gear 2; the lug 5 stretches into the through hole 6, and the vertical face of the gap adjusting cushion block 7 is attached to one face of the lug 5, and the other face of the lug 5 is in clearance arrangement with the vertical face of the through hole 6.
One side of the gear teeth in the driving gear 1 is meshed with the driven gear 2, and the other side is meshed with the clearance adjusting gear 3.
The clearance adjusting cushion block 7 is provided with a waist round hole, a bolt penetrates through the waist round hole, the bottom of the bolt is connected with the top of the driven gear 2, and a limit nut is arranged above the waist round hole by the bolt, so that the clearance adjusting cushion block 7 is limited by the limit nut and the bolt and cannot be extruded out of the through hole 6 by the spring 8.
And a spring 8 groove is formed between the bottom of the gap adjusting cushion block 7 and the top of the driven gear 2, and two ends of the spring 8 are respectively positioned in the spring 8 groove, so that the spring 8 is ensured not to move.
The stiffness coefficient of the spring 8 is 23N/mm-30N/mm, and is at least larger than 23N/mm, so that the torsion force is insufficient to compress the spring 8 in the clockwise or anticlockwise rotation process of the driven gear 2 and the gap adjusting gear 3, and the transmission effect is affected.
The inclination of the inclined plane of the gap adjusting cushion block 7 and the inclined plane of the through hole 6 are all 8 degrees to 11 degrees.
An axial bearing is arranged on the rotating shaft 4 and is positioned at the top of the clearance adjusting gear 3, so that the clearance adjusting gear 3 can not axially move.
In this embodiment, a transition gear may be further disposed between the driving gear 1 and the driven gear 2 and between the driving gear 1 and the gap adjusting gear 3, where the driving gear 1 is meshed with the transition gear, and the transition gear is meshed with the driven gear 2 and the gap adjusting gear 3 respectively.
The number of the transition gears is two, namely a first transition gear 9 and a second transition gear 10, the first transition gear 9 is respectively meshed with the clearance adjusting gear 3 and the driving gear 1, and the second transition gear 10 is respectively meshed with the driven gear 2 and the driving gear 1.
Be equipped with the spring 8 groove of boss and spring 8 installation on the driven gear 2, install the spring 8 to the spring 8 groove of driven gear 2, adjust clearance gear 3's dysmorphism through-hole 6 and put into and adjust clearance cushion 7 and install the cooperation with driven gear 2, spring 8 and adjust clearance cushion 7 effect this moment, adjust clearance cushion 7 inclined plane and adjust clearance gear 3 dysmorphism through-hole 6 inclined plane cooperation for adjust clearance gear 3 and produce dislocation of certain angle around driven gear 2 circumference.
The gap adjusting cushion block 7 moves outwards due to the reaction force of the spring 8, and meanwhile, the lug 5 on the driven gear 2 props against the gap adjusting cushion block 7, so that dislocation is generated around the circumference of the gap adjusting gear 3, and at the moment, when the driving gear 1 rotates clockwise, the driving gear 1 is meshed with the gap adjusting gear 3; when the driving gear 1 rotates counterclockwise, the driving gear 1 is engaged with the driven gear 2. The gear clearance adjusting structure is utilized to respectively finish the clockwise rotation and the anticlockwise rotation of the gears through different gear sets of the same shaft system, the structure does not need to manually adjust the meshing clearance between the gears, and the phenomenon that the clearance is overlarge to form idle stroke due to gear transmission abrasion is solved through self adaption, so that the gear transmission precision is improved; meanwhile, the phenomenon of large friction force and even clamping stagnation under the high and low temperature conditions caused by too small backlash in the existing gear transmission is also solved.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided will be apparent to those of skill in the art upon reading the above description. The scope of the patent should, therefore, be determined not with reference to the above description, but instead should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are incorporated herein by reference for the purpose of completeness. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to forego such subject matter, nor should the applicant not be considered to be a part of the disclosed subject matter.
Claims (8)
1. The gear transmission clearance self-adaptive compensation device is characterized by comprising a driving gear (1), a driven gear (2) and a clearance adjusting gear (3);
the driven gear (2) is coaxially and fixedly connected with a rotating shaft (4), and a lug (5) is arranged on the end face of the top of the driven gear (2); the gap adjusting gear (3) is nested on the rotating shaft (4) and is in sliding connection with the rotating shaft (4), a strip-shaped through hole (6) is formed in the end face of the gap adjusting gear (3), one side of the through hole (6) in the length direction is a vertical surface, the other side of the through hole is an inclined surface, a gap adjusting cushion block (7) is arranged in the through hole (6), one side of the gap adjusting cushion block (7) is a vertical surface, the other side of the gap adjusting cushion block is an inclined surface, the inclined surface of the gap adjusting cushion block (7) is attached to the inclined surface of the through hole (6), and a spring (8) is arranged between the bottom of the gap adjusting cushion block (7) and the top of the driven gear (2); the lug (5) stretches into the through hole (6), the vertical surface of the gap adjusting cushion block (7) is attached to one surface of the lug (5), and the other surface of the lug (5) is arranged in a gap with the vertical surface of the through hole (6);
one side of the gear teeth in the driving gear (1) is meshed with the driven gear (2), and the other side is meshed with the clearance adjusting gear (3).
2. The gear transmission clearance self-adaptive compensation device according to claim 1, wherein a waist round hole is formed in the clearance adjusting cushion block (7), a bolt penetrates through the waist round hole, the bottom of the bolt is connected with the top of the driven gear (2), and a limit nut is arranged above the waist round hole.
3. The gear transmission clearance self-adaptive compensation device according to claim 1, wherein spring grooves are formed between the bottom of the clearance adjusting cushion block (7) and the top of the driven gear (2), and two ends of the spring (8) are respectively positioned in the spring grooves.
4. The gear transmission clearance self-adaptive compensation device according to claim 1, wherein the inclination of the inclined plane of the clearance adjusting cushion block (7) and the inclined plane of the through hole (6) are respectively 8-11 degrees.
5. Gear transmission gap adaptive compensation device according to claim 1, characterized in that the stiffness coefficient of the spring (8) is larger than 23N/mm.
6. The gear transmission clearance self-adaptive compensation device according to claim 1, characterized in that a bearing is arranged on the rotating shaft (4), and the bearing is positioned at the top of the clearance adjusting gear (3).
7. The gear transmission clearance self-adaptive compensation device according to claim 1, wherein the driving gear (1) is meshed with a transition gear, and the transition gear is respectively meshed with the driven gear (2) and the clearance adjusting gear (3).
8. The gear transmission clearance adaptive compensation device according to claim 1, wherein the number of transition gears is two, and the transition gears are respectively meshed with the driven gear (2) and the clearance adjusting gear (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320150783.6U CN219452848U (en) | 2023-01-31 | 2023-01-31 | Gear transmission clearance self-adaptive compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320150783.6U CN219452848U (en) | 2023-01-31 | 2023-01-31 | Gear transmission clearance self-adaptive compensation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219452848U true CN219452848U (en) | 2023-08-01 |
Family
ID=87380532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320150783.6U Active CN219452848U (en) | 2023-01-31 | 2023-01-31 | Gear transmission clearance self-adaptive compensation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219452848U (en) |
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2023
- 2023-01-31 CN CN202320150783.6U patent/CN219452848U/en active Active
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