CN201257075Y - Anti-slip speed changer - Google Patents
Anti-slip speed changer Download PDFInfo
- Publication number
- CN201257075Y CN201257075Y CNU2008201000687U CN200820100068U CN201257075Y CN 201257075 Y CN201257075 Y CN 201257075Y CN U2008201000687 U CNU2008201000687 U CN U2008201000687U CN 200820100068 U CN200820100068 U CN 200820100068U CN 201257075 Y CN201257075 Y CN 201257075Y
- Authority
- CN
- China
- Prior art keywords
- gear
- fixed
- transverse axis
- ring
- skidding
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Retarders (AREA)
Abstract
The utility model discloses an anti-skid speed variator comprising wheel axles arranged on a wheelchair frame and roller wheels arranged on the wheel axles. The anti-skid speed variator is characterized in that driving wheels and driven wheels are arranged on the wheel axles; the wheelchair frame is also provided with cross axles on which commutating bearings are arranged; commutating side gears are fixed on the end surfaces of the inner rings of the commutating bearings; the commutating side gears are connected with one end of each master gear through planetary gears; the master gears are connected with the driven wheels through chains, and the master gears are connected with outer gear rings; and transmission belts sleeved on the outer gear rings are connected with the driving wheels. The utility model can ensure the normal work of the chains driven by an electric motor in any case, reliably and steadily drive a wheelchair to overcome obstacles without the necessary of winding tracks on the roller wheels, is especially incapable of causing the wheels to rotate reversely when going up steep slopes and prevents the wheelchair from stepping back.
Description
Technical field
This utility model belongs to the gear technique field, specifically, relates to the anti-skidding variator that a kind of people with disability's of driving wheel rotates.
Background technology
Present Wheelchair all is by craft or driven by power, and existing Wheelchair seldom has the obstacle detouring design, can't cross higher obstacle, the inventor has designed a kind of row's formula obstacle detouring wheel, can help Wheelchair to cross over than high obstacle or darker wide gap, structure such as Fig. 1 of this row's formula obstacle detouring wheel, shown in 2, roller by an array structure unanimity is formed, each roller is connected on the drive mechanism through driving-belt respectively, each drive mechanism is installed under the vehicle frame of wheelchair through crossbeam respectively, through bearing holder (housing, cover) swing arm is housed on each crossbeam, one end of swing arm is fixedlyed connected with the main shaft of roller, and the other end of swing arm is connected in the bottom surface of wheelchair through spring, and each drive mechanism is socketed on the same motor through chain, the driven by motor chain operation rotates synchronously through the drive mechanism driving rolls.When the wheelchair crossing over blockage, wherein the part roller drives the swing arm upset, and all the other rollers keep plane motion, drives wheelchair and advances.
Drive mechanism is along with the upset of swing arm, the running of each drive mechanism just can not realize synchronous working, have influence on the chain work of suit on each drive mechanism, and roller is at crossing over blockage, particularly when crossing steeper upward slope, occur the wheel-slip counter-rotating easily, cause wheelchair to retreat, for this reason, need on each roller, twine crawler belt.
The shortcoming of prior art is: twine crawler belt on the roller, its complex structure has increased the manufacturing cost and the maintenance difficulty of wheelchair, has also increased the weight of wheelchair, has increased the load of motor.
The utility model content
For solving above technical problem, the purpose of this utility model is to provide a kind of anti-skidding variator, not be used in and twines crawler belt on the roller, just can drive the wheelchair crossing over blockage, and particularly when crossing steeper upward slope, wheel can not reverse, and can prevent that wheelchair from retreating.
The technical solution of the utility model is as follows: a kind of anti-skidding variator, comprise the wheel shaft that is installed on the vehicle frame, and fixed roller on this wheel shaft is characterized in that: also be fixed with drive and driven pulley on the described wheel shaft;
Transverse axis also is installed on described vehicle frame, this transverse axis is parallel with described wheel shaft, reversing bearing is installed on the transverse axis, be fixed with sprocket wheel on the outer ring of this reversing bearing, inner ring is sleeved on the transverse axis, the end face of this inner ring is fixed with commutation side tooth, this commutation side tooth is connected with an end of master gear through planetary gear, the other end of this master gear is fixed with auxiliary chain wheel, this auxiliary chain wheel is connected through chain with described driven pulley, the wheel flank of tooth of described master gear is connected with the inner ring of outer tooth ring through gear train, and the outer ring of this outer tooth ring is set with driving-belt and is connected with described drive.
Be equipped with in the reversing bearing and turn to card, this turns to card to limit its outer ring can only one-directional rotation with respect to inner ring, when sprocket wheel drives the outer ring counter-rotating, turn to card to force inner ring and outer ring to be reversed synchronously, inner ring drives master gear and gear train rotation through planetary gear, the external gear of gear train drives outer tooth ring just to be changeed, and outer tooth ring just can drive drive, roller and driven pulley through driving-belt just to be changeed.
When the roller crossing over blockage need quicken just changeing, the external gear of outer tooth ring and gear train also quickens just to change, and gear train quickens counter-rotating through the inner ring that planetary gear drives reversing bearing, can't transmit acting to the outer ring but turn to card to limit its inner ring, therefore, the outer ring of reversing bearing and sprocket wheel keep original rotating speed.
When the roller crossing over blockage need reverse, the external gear of outer tooth ring and gear train also reverses, the external gear of gear train also reverses, and turn to the inner ring of card restriction reversing bearing just to change, force anti-skidding variator integral body to be reversed around transverse axis, reversing in the same way in the inner ring and the outer ring of realization reversing bearing, makes outer ring and sprocket wheel keep original rotating speed.
Wheelchair turns to card to force inner ring and outer ring to be reversed synchronously when crossing steeper upward slope, and inner ring drives master gear through planetary gear just to be changeed, fixed auxiliary chain wheel just changes synchronously on the master gear, and driven pulley also can only just change, and driving wheel shaft and roller can only just change, roller can not reverse, and can prevent that wheelchair from retreating.
Described planetary gear is made up of upper and lower support column and upper and lower bevel gear, wherein upper and lower support column symmetry is fixed on the upper and lower both sides of described transverse axis, and upper and lower support column is vertical with described transverse axis, described upper and lower bevel gear is separately fixed on the upper and lower support column, one side of these upper and lower bevel gear gear teeth and the engagement of described commutation side tooth, the opposite side of the upper and lower bevel gear gear teeth is connected with described master gear.
On described transverse axis, be fixed with positioning disk, fix described upper and lower support column on this positioning disk, on described positioning disk, have upper and lower two through holes, described upper and lower support column passes upper and lower two through holes respectively, and described upper and lower bevel gear is set on the interior upper and lower support column of this upper and lower through hole.
Upper and lower support column is upper and lower bevel gear location.Positioning disk protects upper and lower bevel gear not contact with the external world, strengthens the stability of upper and lower support column simultaneously.
Be connected with reinforcing ring between the described upper and lower support column, this reinforcing ring overlaps with the axial line of described transverse axis.
Reinforcing ring strengthens the stability of upper and lower support column.
Described master gear is sleeved on the described transverse axis, and an end of this master gear is fixed with side gear, and this side gear connects described upper and lower bevel gear.
Described gear train is made up of upper and lower internal gear and upper and lower external gear, wherein said upper and lower internal gear respectively with the engagement of the face of gear up and down of described master gear, described upward internal gear and the engagement of last external gear, described down internal gear meshes with following external gear, described upper and lower external gear respectively with the inner ring gear teeth meshing of described outer tooth ring.
Described master gear, upper and lower internal gear and upper and lower external gear are positioned on the same diameter of described outer tooth ring.
Master gear is consistent with turning to of upper and lower external gear, with the switched in opposite of upper and lower internal gear.Five gears have improved the stability of whole gear train on same diameter.
A described end of going up internal gear and last external gear main shaft all is fixed on the described upper support post, and an end of described internal gear down and following external gear main shaft all is fixed on the described lower support post;
The other end of described upper and lower internal gear and upper and lower external gear is fixed on the same annulus.
Upper support post and lower support post are respectively internal gear and last external gear, following internal gear and following external gear are spacing.Upper and lower support column and annulus have improved the stability of whole gear train.
Described auxiliary chain wheel is a barbell shape, and the middle part of this auxiliary chain wheel is a smooth shaft, and the two ends of this auxiliary chain wheel are sprocket wheel.
Smooth shaft can be installed brake, realizes the wheelchair braking.
Beneficial effect: this utility model provides and has been used for a kind of anti-skidding variator, can under any circumstance guarantee that the chain that motor drove can keep operate as normal.Not be used in and twine crawler belt on the roller, just can reliablely and stablely drive the wheelchair crossing over blockage, particularly when crossing steeper upward slope, wheel can not reverse, and prevents that wheelchair from retreating.
Description of drawings
Fig. 1 is the structural representation of row's formula obstacle detouring wheel;
Fig. 2 is the scheme of installation of swing arm and obstacle detouring wheel;
Fig. 3 is the annexation figure of this utility model and roller;
Fig. 4 is a structural representation of the present utility model;
Fig. 5 is the structural representation of planetary gear;
Fig. 6 is the structural representation of reversing bearing and sprocket wheel;
Fig. 7 is a general assembly drawing of the present utility model;
Fig. 8 is the installation diagram of roller and wheel shaft;
Fig. 9 is the installation diagram of this utility model and roller.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Shown in Fig. 3,4,6,7: this utility model provides a kind of anti-skidding variator, comprises the wheel shaft 22 that is installed on the vehicle frame 17, and fixed roller 23 on this wheel shaft 22 is characterized in that: also be fixed with drive 24 and driven pulley 25 on the described wheel shaft 22;
On described vehicle frame 17, transverse axis 1 is installed also, this transverse axis 1 is parallel with described wheel shaft 22, reversing bearing 2 is installed on the transverse axis 1, be fixed with sprocket wheel 5 on the outer ring of this reversing bearing 2, inner ring is sleeved on the transverse axis 1, the end face of this inner ring is fixed with commutation side tooth 10, this commutation side tooth 10 is connected with an end of master gear 9 through planetary gear 3, the other end of this master gear 9 is fixed with auxiliary chain wheel 26, this auxiliary chain wheel 26 and described driven pulley 25 are connected through chain, the wheel flank of tooth of described master gear 9 is connected through the inner ring of gear train with outer tooth ring 4, and the outer ring of this outer tooth ring 4 is set with driving-belt and is connected with described drive 24.
Described planetary gear 3 is made up of upper and lower support column 6,6 ' and upper and lower bevel gear 11,11 ', wherein upper and lower support column 6,6 ' symmetry is fixed on the upper and lower both sides of described transverse axis 1, and upper and lower support column 6,6 ' is vertical with described transverse axis 1, described upper and lower bevel gear 11,11 ' is separately fixed on the upper and lower support column 6,6 ', this upper and lower bevel gear 11, one side of the 11 ' gear teeth and 10 engagements of described commutation side tooth, the opposite side of upper and lower bevel gear 11, the 11 ' gear teeth is connected with described master gear 9.
On described transverse axis 1, be fixed with positioning disk 15, fix described upper and lower support column 6 on this positioning disk 15,6 ', on described positioning disk 15, have upper and lower two through holes, described upper and lower support column 6,6 ' passes upper and lower two through holes respectively, described upper and lower bevel gear 11, on 11 ' the upper and lower support column 6,6 ' that is set in this upper and lower through hole.
Upper and lower support column is upper and lower bevel gear location.Positioning disk protects upper and lower bevel gear not contact with the external world, strengthens the stability of upper and lower support column simultaneously.
Described upper and lower support column 6 is connected with reinforcing ring 14 between 6 ', this reinforcing ring 14 overlaps with the axial line of described transverse axis 1.
Reinforcing ring strengthens the stability of upper and lower support column.
Described master gear 9 is sleeved on the described transverse axis 1, and is spacing by nut, and an end of this master gear 9 is fixed with side gear 13, and this side gear 13 connects described upper and lower bevel gear 11,11 '.
Described gear train is by upper and lower internal gear 8,8 ' and upper and lower external gear 7,7 ' forms, wherein said upper and lower internal gear 8,8 ' respectively with the engagement of the face of gear up and down of described master gear 9, describedly go up internal gear 8 and last external gear 7 engagements, described internal gear 8 ' down meshes with following external gear 7 ', described upper and lower external gear 7,7 ' respectively with the inner ring gear teeth meshing of described outer tooth ring 4.
Described master gear 9, upper and lower internal gear 8,8 ' and upper and lower external gear 7,7 ' are positioned on the same diameter of described outer tooth ring 4.
Master gear is consistent with turning to of upper and lower external gear, with the switched in opposite of upper and lower internal gear.Five gears have improved the stability of whole gear train on same diameter.
A described end of going up internal gear 8 and last external gear 7 main shafts all is fixed on the described upper support post 6, and an end of described internal gear 8 ' down and following external gear 7 ' main shaft all is fixed on the described lower support post 6 ';
The other end of described upper and lower internal gear 8,8 ' and upper and lower external gear 7,7 ' is fixed on the same annulus 27.
Upper support post and lower support post are respectively internal gear and last external gear, following internal gear and following external gear are spacing.Upper and lower support column and annulus 27 have improved the stability of whole gear train.
Described auxiliary chain wheel 26 is a barbell shape, and the middle part of this auxiliary chain wheel 26 is a smooth shaft, and the two ends of this auxiliary chain wheel 26 are sprocket wheel.
Smooth shaft can be installed brake, realizes the wheelchair braking.
Its operation principle is:
Shown in Fig. 2,3,4, be equipped with in the reversing bearing and turn to card, this turns to card to limit its outer ring can only one-directional rotation with respect to inner ring, when sprocket wheel drives the outer ring counter-rotating, turn to card to force inner ring and outer ring to be reversed synchronously, inner ring drives master gear 9 and gear train rotation through planetary gear, and the external gear of gear train drives outer tooth ring just to be changeed, and outer tooth ring just can drive drive 24, roller and driven pulley 25 through driving-belt just to be changeed.
When the roller crossing over blockage need quicken just changeing, the external gear of outer tooth ring and gear train also quickens just to change, and gear train quickens counter-rotating through the inner ring that planetary gear drives reversing bearing, can't transmit acting to the outer ring but turn to card to limit its inner ring, therefore, the outer ring of reversing bearing and sprocket wheel keep original rotating speed.
When the roller crossing over blockage need reverse, the external gear of outer tooth ring and gear train also reverses, the external gear of gear train also reverses, and turn to the inner ring of card restriction reversing bearing just to change, force anti-skidding variator integral body to be reversed around transverse axis, reversing in the same way in the inner ring and the outer ring of realization reversing bearing, makes outer ring and sprocket wheel keep original rotating speed.
Wheelchair is when crossing steeper upward slope, and when perhaps motor quit work on the slope, roller 23 was easy to trackslip backward automatically, drives driven pulley 25 and master gear 9 counter-rotatings on the wheel shaft 22.
But turn to card to force the inner ring of reversing bearing 2 and outer ring to be reversed synchronously, inner ring drives master gear 9 through planetary gear can only just be changeed, fixed auxiliary chain wheel 26 can only just change on the master gear 9, driven pulley 25 also can only just change, driving wheel shaft 22 and roller 23 can only just change, roller 23 can not reverse, and can prevent that wheelchair from retreating.
Claims (9)
1, a kind of anti-skidding variator comprises the wheel shaft (22) that is installed on the vehicle frame (17), and this wheel shaft (22) is gone up fixed roller (23), it is characterized in that: also be fixed with drive (24) and driven pulley (25) on the described wheel shaft (22);
Transverse axis (1) also is installed on described vehicle frame (17), this transverse axis (1) is parallel with described wheel shaft (22), reversing bearing (2) is installed on the transverse axis (1), be fixed with sprocket wheel (5) on the outer ring of this reversing bearing (2), inner ring is sleeved on the transverse axis (1), the end face of this inner ring is fixed with commutation side tooth (10), this commutation side tooth (10) is connected through the end of planetary gear (3) with master gear (9), the other end of this master gear (9) is fixed with auxiliary chain wheel (26), this auxiliary chain wheel (26) is connected through chain with described driven pulley (25), the wheel flank of tooth of described master gear (9) is connected through the inner ring of gear train with outer tooth ring (4), and the outer ring of this outer tooth ring (4) is set with driving-belt and is connected with described drive (24).
2, anti-skidding variator according to claim 1, it is characterized in that: described planetary gear (3) is by last, lower support post (6,6 ') and last, following bevel gear (11,11 ') form, wherein go up, lower support post (6,6 ') symmetry be fixed on described transverse axis (1) on, following both sides, and on, lower support post (6,6 ') is vertical with described transverse axis (1), described on, following bevel gear (11,11 ') be separately fixed at, lower support post (6,6 ') on, on this, one side of following bevel gear (11, the 11 ') gear teeth and described commutation side tooth (10) engagement, on, the opposite side of following bevel gear (11, the 11 ') gear teeth is connected with described master gear (9).
3, anti-skidding variator according to claim 2, it is characterized in that: on described transverse axis (1), be fixed with positioning disk (15), this positioning disk (15) is gone up fixing described upper and lower support column (6,6 '), on described positioning disk (15), have upper and lower two through holes, described upper and lower support column (6,6 ') pass upper and lower two through holes respectively, described upper and lower bevel gear (11,11 ') is set on the interior upper and lower support column (6,6 ') of this upper and lower through hole.
4, anti-skidding variator according to claim 3 is characterized in that: be connected with reinforcing ring (14) between the described upper and lower support column (6,6 '), this reinforcing ring (14) overlaps with the axial line of described transverse axis (1).
5, anti-skidding variator according to claim 2, it is characterized in that: described master gear (9) is sleeved on the described transverse axis (1), one end of this master gear (9) is fixed with side gear (13), and this side gear (13) connects described upper and lower bevel gear (11,11 ').
6, anti-skidding variator according to claim 1, it is characterized in that: described gear train is by upper and lower internal gear (8,8 ') and upper and lower external gear (7,7 ') form, wherein said upper and lower internal gear (8,8 ') respectively with the engagement of the face of gear up and down of described master gear (9), the described internal gear (8) of going up meshes with last external gear (7), described internal gear (8 ') down and following external gear (7 ') engagement, described upper and lower external gear (7,7 ') respectively with the inner ring gear teeth meshing of described outer tooth ring (4).
7, anti-skidding variator according to claim 6 is characterized in that: described master gear (9), upper and lower internal gear (8,8 ') and upper and lower external gear (7,7 ') are positioned on the same diameter of described outer tooth ring (4).
8, according to claim 2 or 6 described anti-skidding variators, it is characterized in that: a described end of going up internal gear (8) and last external gear (7) main shaft all is fixed on the described upper support post (6), and an end of described internal gear (8 ') down and following external gear (7 ') main shaft all is fixed on the described lower support post (6 ');
The other end of described upper and lower internal gear (8,8 ') and upper and lower external gear (7,7 ') is fixed on the same annulus (27).
9, anti-skidding variator according to claim 1 is characterized in that: described auxiliary chain wheel (26) is a barbell shape, and the middle part of this auxiliary chain wheel (26) is a smooth shaft, and the two ends of this auxiliary chain wheel (26) are sprocket wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201000687U CN201257075Y (en) | 2008-09-23 | 2008-09-23 | Anti-slip speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201000687U CN201257075Y (en) | 2008-09-23 | 2008-09-23 | Anti-slip speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201257075Y true CN201257075Y (en) | 2009-06-17 |
Family
ID=40771304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201000687U Expired - Fee Related CN201257075Y (en) | 2008-09-23 | 2008-09-23 | Anti-slip speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201257075Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074632A (en) * | 2009-10-22 | 2011-05-25 | Lg伊诺特有限公司 | Light emitting device, light emitting device package and lighting system |
| CN103998002A (en) * | 2011-09-29 | 2014-08-20 | 智能车轮公司 | Low-gear system for manually propelled wheelchairs and methods of use |
| CN107041817A (en) * | 2017-02-06 | 2017-08-15 | 郜浩然 | A kind of combination wheel and the wheelchair comprising the combination wheel |
| CN107753197A (en) * | 2017-04-14 | 2018-03-06 | 常州市吉庆机电有限公司 | Power-assisted intelligent driver afterwards |
| CN111195679A (en) * | 2020-02-11 | 2020-05-26 | 汤成 | Portable stamping die |
-
2008
- 2008-09-23 CN CNU2008201000687U patent/CN201257075Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074632A (en) * | 2009-10-22 | 2011-05-25 | Lg伊诺特有限公司 | Light emitting device, light emitting device package and lighting system |
| CN103998002A (en) * | 2011-09-29 | 2014-08-20 | 智能车轮公司 | Low-gear system for manually propelled wheelchairs and methods of use |
| CN103998002B (en) * | 2011-09-29 | 2016-10-12 | 智能车轮公司 | Low-speed gear system and using method thereof for hand propelled wheelchair |
| CN107041817A (en) * | 2017-02-06 | 2017-08-15 | 郜浩然 | A kind of combination wheel and the wheelchair comprising the combination wheel |
| CN107753197A (en) * | 2017-04-14 | 2018-03-06 | 常州市吉庆机电有限公司 | Power-assisted intelligent driver afterwards |
| CN111195679A (en) * | 2020-02-11 | 2020-05-26 | 汤成 | Portable stamping die |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201257075Y (en) | Anti-slip speed changer | |
| CN102860906A (en) | Wheelchair capable of climbing stairs | |
| CN103465777A (en) | Double-differential electromechanical compound transmission device for crawler vehicle | |
| CN111532340A (en) | Vehicle transmission speed difference steering device | |
| CN202686557U (en) | Integrated driving-steering magnet-wheel device used for magnetic-adsorbing wall-climbing robot | |
| CN201376498Y (en) | Universal differential | |
| CN201745437U (en) | Novel electric drive axle | |
| CN201244140Y (en) | Reversing speed variator | |
| CN102700591A (en) | Travel driving mechanism for walking up and down stairs | |
| CN216882372U (en) | Automatic pipeline welding lifting mechanism | |
| CN207403827U (en) | Co-deflection crawler travel portion and with its robot moving platform | |
| CN201538389U (en) | Children-used crawler-type recreational vehicle | |
| CN205273578U (en) | Wheelset tilting mechanism | |
| CN106241603A (en) | Rail logistics trolley driver | |
| CN2683088Y (en) | Multifunctional combined wheel chair | |
| CN206694508U (en) | A kind of planet wheel decelerator rear axle | |
| CN206634146U (en) | A kind of dual drive transmission mechanism and the bicycle using dual drive transmission mechanism | |
| CN219883830U (en) | Multi-angle adjustable tracked vehicle | |
| CN217731849U (en) | Automatic change supplementary board device of crossing of assembly line | |
| CN206255060U (en) | A kind of gear drive turned to for electrically propelled traction vehicle | |
| CN112659891A (en) | Motor drive axle of double-track vehicle | |
| CN202507911U (en) | Automatic guide trolley wheel train structure | |
| CN2639522Y (en) | Planetary gear transmission change-over long stroke beam-pumping unit | |
| CN206012761U (en) | A kind of direction movement device | |
| CN221873799U (en) | Differential steering engine driving device of electric flat car |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090617 Termination date: 20120923 |