CN104633052A - Movable gear and gear set meshed with same - Google Patents
Movable gear and gear set meshed with same Download PDFInfo
- Publication number
- CN104633052A CN104633052A CN201510089632.4A CN201510089632A CN104633052A CN 104633052 A CN104633052 A CN 104633052A CN 201510089632 A CN201510089632 A CN 201510089632A CN 104633052 A CN104633052 A CN 104633052A
- Authority
- CN
- China
- Prior art keywords
- gear
- gear hobbing
- wheel body
- hobbing
- positioning ring
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/08—Profiling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/10—Constructively simple tooth shapes, e.g. shaped as pins, as balls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/14—Construction providing resilience or vibration-damping
- F16H55/16—Construction providing resilience or vibration-damping relating to teeth only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/08—Profiling
- F16H2055/086—Silent gear profiles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/08—Profiling
- F16H2055/0866—Profiles for improving radial engagement of gears, e.g. chamfers on the tips of the teeth
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
Abstract
The invention discloses a movable gear and a gear set meshed with the same. The movable gear comprises a gear body and is characterized by further comprising hobbings and a hobbing positioning ring, the hobbings are arranged in arc grooves which are uniformly distributed along the periphery of the gear body, and the hobbings are movably matched with the arc grooves of the gear body through the hobbing positioning ring arranged on the periphery of the gear body. The movable gear body and a driven gear body are meshed to form the gear set. By adoption of the structure, the movable gear and the gear set have the advantages of novel structure, low operation noise, low abrasion, long service life, larger transferring torque and the like.
Description
Technical field
The present invention relates to mechanical transmission component technical field, specifically a kind of free gear for transmission and hemi-spherical ended shape insert wheels.
Background technique
As everyone knows, gear is the colyliform mechanical parts of the engagement transmitting torque relying on tooth, has been widely used in each industrial products.In prior art, on gear the flank profil of each tooth generally by tooth flank, with a toothed surface of the every sidelight slip of tooth flank, and the tip circle cylinder be connected with toothed surface is formed.In toothed surface, the pressure angle of various piece is identical, like this, when with engaging gear enter engage time, collision can be produced because directly contacting, cause that gearing noise is large, wearing and tearing are large, working life is low.
So-called gear noise should be called gear transmission noise exactly, refer to meshed gears to or gear train when transmission, the noise radiated because mutual collision or friction evoke gear mass vibration, involute gear is in order to reduce noise, usually the aspect such as the machining accuracy to gear, raw material, heat treatment is needed all will to carry out strict control, therefore, cause processing cost greatly to improve, the skill set requirements of workman is also very high.
Summary of the invention
The object of the invention is to solve above-mentioned the deficiencies in the prior art, provide that a kind of novel structure, operating noise are low, wear and tear the free gear little, long service life, transmitting torque are large and the gear train that is meshed.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of free gear, comprise wheel body, it is characterized in that being provided with gear hobbing and gear hobbing positioning ring, described wheel body is circumferentially laid with arc groove, gear hobbing is provided with in arc groove, the arc groove activity of the gear hobbing positioning ring that described gear hobbing is provided with through wheel body periphery and wheel body coordinates, and is beneficial to form Structure deformation by gear hobbing with the driven gear body be meshed in engagement process, reaches that frictional force is little, noise is low, the effect of long service life.
Gear hobbing of the present invention can adopt spherical gear hobbing, movablely in the middle part of described gear hobbing to be stuck in the through hole that gear hobbing positioning ring surface uniform is provided with and in the arc groove being positioned at wheel body, be beneficial to gear hobbing and form Structure deformation with the driven gear body be meshed in engagement process, reach that frictional force is little, noise is low, the effect of long service life.
Gear hobbing of the present invention also can adopt cylindrical gear hobbing, and the gear hobbing positioning ring that described cylindrical gear hobbing two ends are provided with wheel body two ends is respectively flexibly connected, and to reach, frictional force is little, noise is low, long service life, transmit the effect of more high pulling torque.
Gear hobbing of the present invention can also adopt conical gear hobbing, the gear hobbing positioning ring that described conical gear hobbing two ends are provided with wheel body two ends is respectively flexibly connected, to reach, frictional force is little, noise is low, long service life, the effect of transmitting more high pulling torque, adapting to the demand of the disalignment angle of cut.
The present invention also can be provided with bulb at described cylindrical gear hobbing two ends, and described cylindrical gear hobbing two ends are flexibly connected with gear hobbing positioning ring through bulb, are beneficial to be applied on the equipment of shift-variable.
A kind of gear train be meshed, it is characterized in that comprising by movable wheel body described above and passive tooth wheel body, the external all Circle-Arrays of described driven gear show curve bath, the arc shaped surface of described curve bath matches with the surface of contact of gear hobbing, to ensure that the gear clearance be meshed reaches minimum, described movable teeth wheel body is meshed through the curve bath of gear hobbing with passive tooth wheel body, passive tooth wheel body is by the gear hobbing transferring power in movable wheel body, avoid and firmly contact when two gears of the prior art are meshed and the collision friction produced, greatly reduce noise, decrease wearing and tearing, improve working life, simultaneously, gear clearance is little, backhaul gap is just little, effective precision positioning can be realized.
The present invention, owing to adopting said structure, has that novel structure, operating noise are low, little, the advantage such as long service life, transmitting torque are large of wearing and tearing.
Accompanying drawing explanation
Fig. 1 is the example structure schematic diagram of the spherical gear hobbing of the present invention.
Fig. 2 is the example structure schematic diagram of the cylindrical gear hobbing of the present invention.
Fig. 3 is the plan view of Fig. 2.
Fig. 4 is the structural representation of the gear train that the present invention is meshed.
Fig. 5 is the structural representation of the gear train of prior art.
Fig. 6 is the partial gear schematic diagram be meshed of prior art.
Fig. 7 is the partial gear schematic diagram that the present invention is meshed.
Reference character: wheel body 1, gear hobbing 2, gear hobbing positioning ring 3, arc groove 4, curve bath 5, passive tooth wheel body 6.
Embodiment:
Below in conjunction with accompanying drawing, the present invention is further described:
As shown in drawings, a kind of free gear, comprise wheel body 1, it is characterized in that being provided with gear hobbing 2 and gear hobbing positioning ring 3, described wheel body 1 is circumferentially laid with arc groove 4, is provided with gear hobbing 2 in arc groove 4, and the gear hobbing positioning ring 3 that described gear hobbing 2 is provided with through wheel body 1 periphery coordinates with arc groove 4 activity of wheel body 1, be beneficial to form Structure deformation by gear hobbing 2 with the driven gear body be meshed in engagement process, reach that frictional force is little, noise is low, the effect of long service life.
Gear hobbing 2 of the present invention can adopt spherical gear hobbing, movablely in the middle part of described gear hobbing 2 to be stuck in the through hole that gear hobbing positioning ring 3 surface uniform is provided with and in the arc groove 4 being positioned at wheel body 1, be beneficial to gear hobbing 2 and form Structure deformation with the driven gear body be meshed in engagement process, reach that frictional force is little, noise is low, the effect of long service life.
Gear hobbing 2 of the present invention also can adopt cylindrical gear hobbing, and the gear hobbing positioning ring 3 that described cylindrical gear hobbing two ends are provided with wheel body 1 two ends is respectively flexibly connected, and to reach, frictional force is little, noise is low, long service life, transmit the effect of more high pulling torque.
Gear hobbing 2 of the present invention can also adopt conical gear hobbing, the gear hobbing positioning ring 3 that described conical gear hobbing two ends are provided with wheel body 1 two ends is respectively flexibly connected, to reach, frictional force is little, noise is low, long service life, the effect of transmitting more high pulling torque, adapting to the demand of the disalignment angle of cut.
The present invention also can be provided with bulb at described cylindrical gear hobbing 2 two ends, and described cylindrical gear hobbing 2 two ends are flexibly connected with gear hobbing positioning ring 3 through bulb, are beneficial to be applied on the equipment of shift-variable.
A kind of gear train be meshed, it is characterized in that comprising by movable wheel body 1 described above and passive tooth wheel body 6, described passive tooth wheel body 6 periphery Circle-Array shows curve bath 5, the arc shaped surface of described curve bath 5 matches with the surface of contact of gear hobbing 2, to ensure that the gear clearance be meshed reaches minimum, described movable teeth wheel body 1 is meshed with the curve bath 5 of passive tooth wheel body 6 through gear hobbing 2, passive tooth wheel body 6 is by gear hobbing 2 transferring power in movable wheel body 1, owing to passing through movable gear teeth circular sliding slopes between driving wheel and driven wheel, effectively decrease mutual collision and friction, thus greatly reduce drive noise, simultaneously, gear clearance is little, backhaul gap is just little, effective precision positioning can be realized.
The present invention is for the oscillating tooth of roller type and existing gear comparative analysis:
The diameter that the present invention gets oscillating tooth roller is 0.84 times that gear compound graduation justifies chordal thickness, can accomplish that the oscillating tooth number of teeth is 2 times of the gear number of teeth, in order to the space allowing oscillating tooth have motion, and can lubricant oil be stored, be conducive to reducing friction and wearing and tearing, get 1.05 ~ 1.1 times that oscillating tooth needling diameter is oscillating tooth ball diameter, when transmitting motion, under force, the fortune such as slippage, rolling merit is there is in roller in ball-and-socket, improve the contact ratio of engagement, reduce single roller stressed, improve the stationarity of motion.
Usually, the fatigue strength calculating teeth bending strength and the flank of tooth is needed during design of gears, during work, oscillating tooth roller of the present invention is embedded in the middle of the roller cavity of the semicircle needling formation on two-wheeled, transmit motion and power, involute gear whole depth is the modulus of 2.25 times, therefore extension is longer, stressedly can regard overhang as, bear bending moment, tooth root fracture may occur and fracture; And due to roller oscillating tooth gear extension shorter, whole oscillating tooth is subject to taking turns the parcel of nest, can not be used as overhang analysis, therefore not need school lotus flexural strength, and tooth root fracture also unlikely occurs;
When analyzing contact fatigue strength, mainly calculate Contact Stress of Gear according to Hertzian contact theory, in Hertz line contact theory, contact width center Max.contact stress is:
Wherein Q is contact force, and n is the coefficient relevant with gear material, and l is contact line length, for chi is wide,
for curvature and;
Cause is linear contact lay so have
;
Change for each point curvature existing gear, as shown in Figure 6,
,
all being greater than zero, is convex surface contact; As shown in Figure 7, for oscillating tooth
, draw thus,
, so its
little more than gear, therefore the fatigue ratio ordinary gear of the oscillating tooth flank of tooth of the present invention is much larger, and therefore anti-fatigue ability is stronger.
The present invention is through repeatedly testing, analyze and testing, the intermittent strong noise phenomenon that gear train of the present invention produces is few, well can improve working environment, greatly reduce cost of production, and the results showed, when transmission power is identical, gear train size of the present invention can reduce 20% than traditional gear train, when measure-alike, gear-driven moment of torsion of the present invention can increase by 15% than conventional gears, the structure of the gear mechanisms such as speed reducer can be made so compacter, increase work efficiency, reduce cost of production.
The present invention when mounted, one movable teeth wheel body 1 is arranged on driving shaft, passive tooth wheel body 6 is arranged on the driven axle that parallels with driving shaft, and movable teeth wheel body 1 is meshed with passive tooth wheel body 6 through gear hobbing 2, during operation, movable teeth wheel body 1 passes through outside gear hobbing 2 by transmission of power to passive tooth wheel body 6, in transferring power process, due to the rolling of gear hobbing 2, counteract the hard friction brought between movable teeth wheel body 1 and passive tooth wheel body 6, greatly reduce noise, decrease wearing and tearing, improve working life, meanwhile, also deliver larger moment of torsion.
The present invention, owing to adopting said structure, has that novel structure, operating noise are low, little, the advantage such as long service life, transmitting torque are large of wearing and tearing.
Claims (6)
1. a free gear, comprise wheel body, it is characterized in that being provided with gear hobbing and gear hobbing positioning ring, described wheel body is circumferentially laid with arc groove, be provided with gear hobbing in arc groove, the gear hobbing positioning ring that described gear hobbing is provided with through wheel body periphery coordinates with the arc groove activity of wheel body.
2. a kind of free gear according to claim 1, is characterized in that described gear hobbing adopts spherical gear hobbing, movablely in the middle part of described gear hobbing to be stuck in the through hole that gear hobbing positioning ring surface uniform is provided with and in the arc groove being positioned at wheel body.
3. a kind of free gear according to claim 1, is characterized in that described gear hobbing adopts cylindrical gear hobbing, and the gear hobbing positioning ring that described cylindrical gear hobbing two ends are provided with wheel body two ends is respectively flexibly connected.
4. a kind of free gear according to claim 1, is characterized in that described gear hobbing adopts conical gear hobbing, and the gear hobbing positioning ring that described conical gear hobbing two ends are provided with wheel body two ends is respectively flexibly connected.
5. a kind of free gear according to claim 3, it is characterized in that described cylindrical gear hobbing two ends are provided with bulb, described cylindrical gear hobbing two ends are flexibly connected with gear hobbing positioning ring through bulb.
6. the gear train be meshed, it is characterized in that comprising by the movable wheel body described in any one in the claims 1,2,3,4,5 and passive tooth wheel body, the external all Circle-Arrays of described driven gear show curve bath, the arc shaped surface of described curve bath matches with the surface of contact of gear hobbing, described movable teeth wheel body is meshed through the curve bath of gear hobbing with passive tooth wheel body, and passive tooth wheel body is by the gear hobbing transferring power in movable wheel body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510089632.4A CN104633052A (en) | 2014-12-31 | 2015-02-27 | Movable gear and gear set meshed with same |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2014108459684 | 2014-12-31 | ||
| CN201410845968 | 2014-12-31 | ||
| CN201510089632.4A CN104633052A (en) | 2014-12-31 | 2015-02-27 | Movable gear and gear set meshed with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104633052A true CN104633052A (en) | 2015-05-20 |
Family
ID=53212135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510089632.4A Pending CN104633052A (en) | 2014-12-31 | 2015-02-27 | Movable gear and gear set meshed with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104633052A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013656A (en) * | 2017-06-07 | 2017-08-04 | 司长松 | The low pair of gear |
| CN107120408A (en) * | 2016-09-28 | 2017-09-01 | 李仁元 | Internal Spherical Surface gear, spherical outside surface gear |
| CN110043605A (en) * | 2019-04-03 | 2019-07-23 | 牟庆平 | A kind of cambered surface rolls the precision gear pair of engagement |
| CN110121610A (en) * | 2016-12-29 | 2019-08-13 | 成都中良川工科技有限公司 | A kind of transmission decelerating device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2023208C1 (en) * | 1990-12-27 | 1994-11-15 | Михаил Петрович Николаев | Gear drive |
| EP0851150A1 (en) * | 1996-12-25 | 1998-07-01 | Kamoseiko Kabushiki Kaisha | A transmission device for converting a torque between rotary movement and linear movement |
| DE10002798A1 (en) * | 1999-06-09 | 2000-12-14 | Richard Landgraf | Gear assembly with meshing gear wheels |
| CN2427673Y (en) * | 2000-06-23 | 2001-04-25 | 张进才 | Rolling column active toothed wheel gearing device |
| US20020170374A1 (en) * | 2001-05-21 | 2002-11-21 | Stewart David A. | Energy saving gear system |
| CN101718334A (en) * | 2008-10-09 | 2010-06-02 | 赵明强 | Transmission gear with rolling teeth |
| CN201843971U (en) * | 2010-09-26 | 2011-05-25 | 苏州晓宇宙齿条科技有限公司 | Gear and rack matched with same |
-
2015
- 2015-02-27 CN CN201510089632.4A patent/CN104633052A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2023208C1 (en) * | 1990-12-27 | 1994-11-15 | Михаил Петрович Николаев | Gear drive |
| EP0851150A1 (en) * | 1996-12-25 | 1998-07-01 | Kamoseiko Kabushiki Kaisha | A transmission device for converting a torque between rotary movement and linear movement |
| DE10002798A1 (en) * | 1999-06-09 | 2000-12-14 | Richard Landgraf | Gear assembly with meshing gear wheels |
| CN2427673Y (en) * | 2000-06-23 | 2001-04-25 | 张进才 | Rolling column active toothed wheel gearing device |
| US20020170374A1 (en) * | 2001-05-21 | 2002-11-21 | Stewart David A. | Energy saving gear system |
| CN101718334A (en) * | 2008-10-09 | 2010-06-02 | 赵明强 | Transmission gear with rolling teeth |
| CN201843971U (en) * | 2010-09-26 | 2011-05-25 | 苏州晓宇宙齿条科技有限公司 | Gear and rack matched with same |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120408A (en) * | 2016-09-28 | 2017-09-01 | 李仁元 | Internal Spherical Surface gear, spherical outside surface gear |
| CN110121610A (en) * | 2016-12-29 | 2019-08-13 | 成都中良川工科技有限公司 | A kind of transmission decelerating device |
| CN107013656A (en) * | 2017-06-07 | 2017-08-04 | 司长松 | The low pair of gear |
| CN110043605A (en) * | 2019-04-03 | 2019-07-23 | 牟庆平 | A kind of cambered surface rolls the precision gear pair of engagement |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150520 |