CN110381903A - A kind of worm gearing for wheelchair - Google Patents
A kind of worm gearing for wheelchair Download PDFInfo
- Publication number
- CN110381903A CN110381903A CN201780088400.4A CN201780088400A CN110381903A CN 110381903 A CN110381903 A CN 110381903A CN 201780088400 A CN201780088400 A CN 201780088400A CN 110381903 A CN110381903 A CN 110381903A
- Authority
- CN
- China
- Prior art keywords
- teeth
- adjusting
- screw thread
- spring
- transmission shaft
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 217
- 230000000694 effects Effects 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 16
- 230000009471 action Effects 0.000 claims description 14
- 210000004209 hair Anatomy 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 14
- 238000010586 diagram Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
- H02K7/1163—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion
- H02K7/1166—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion comprising worm and worm-wheel
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G2203/00—General characteristics of devices
- A61G2203/70—General characteristics of devices with special adaptations, e.g. for safety or comfort
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Transmission Devices (AREA)
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Abstract
A kind of worm gearing for wheelchair, it is related to wheelchair actuation techniques field, it includes driving motor (1), driving spring (6), transmission gear (7), the wheelchair that people are designed using the present invention, people pass through rotation regulation handle (15) before the use；It is driven by regulation handle (15) and adjusts U-loop (13) rotation；It adjusts U-loop (13) and drives adjusting screw thread wheel (14) rotation；Adjusting screw thread wheel (14) rotation will to adjust screw thread wheel (14) along adjusting screw thread wheel (14) axis movement, it can control the initial elasticity performance of driving spring (6) by adjusting regulation handle (15).And then control the peak torque that driving spring (6) can transmit；When people regulate the initial elasticity performance of screw thread；Driving motor (1) is controlled to start to work；Driving motor (1) drives transmission shaft (5) rotation；Transmission shaft (5) drives two spring fixed disc (8) rotations；Two spring fixed discs (8) drive driving spring (6) rotation；Driving spring (6) rotation band nutating gear (7) rotates；Transmission gear (7) band movable gear shaft (11) rotates；It can be worked with wheelchair by gear shaft (11) rotation.
Description
A kind of denomination of invention: worm gearing for wheelchair
Technical field
[0001] the invention belongs to wheelchair actuation techniques field more particularly to a kind of worm gearings for wheelchair.
Background technique
[0002] walking tool of the wheelchair as disabled person, it is normally closed relatively difficult usually by being driven by electricity, many troubles are brought to disabled person.
Technical problem
[0003] in use, people are difficult to make its closing wheelchair used at present because faulty operation is beaten after Jian driving motor Jian is closed；And may be because the conscious act of people and by strain in the arm；Thus many inconvenience are brought to user；Can there can be the wheelchair transmission mechanism closed between enough inch or adjusted to be necessary solution to the problem by being automatically adjusted in people because faulty operation, which beat Jian driving motor Jian, closes inch so designing one kind
Technical solution
[0004] to solve drawbacks described above in the prior art, a kind of present invention worm gearing for wheelchair of public affairs Jian, it adopts the following technical solutions to realize.
[0005] a kind of worm gearing for wheelchair, it is characterized by: it includes driving motor, motor support, ring gear support, fixed plate, transmission shaft, driving spring, transmission gear, spring fixed disc, internal gear, arc pressuring plate, gear shaft, clutch disk, adjust U-loop, adjust screw thread wheel, regulation handle, first adjusts teeth, spring retaining plate, compressed spring, pouring weight, first eccentric groove, extension spring, teeth connecting plate, second adjusts teeth, second eccentric groove, second teeth slot, first teeth slot, connecting rod, wherein driving motor is mounted in fixed plate by motor support；Transmission shaft is connect with driving motor output shaft；On the periphery of transmission shaft in the axial direction on equably Jian there are many first teeth slot；The downside Jian of first teeth slot has the first eccentric groove, and each first teeth slot is communicated with the first eccentric groove；First eccentric groove passes through the center of transmission shaft；On the periphery of transmission shaft in the axial direction on equably Jian there are many second teeth slot；The downside Jian of second teeth slot has the second eccentric groove, and each second teeth slot is communicated with the second eccentric groove；First teeth slot
At 90 degree of angles between the second adjacent teeth slot；Institute's mounting structure is identical in each first teeth slot；For wherein any one, spring retaining plate be mounted in the first teeth slot close to drive shaft axis one end；First adjusting teeth are mounted on one end in the first teeth slot far from drive shaft axis；One end of connecting rod is mounted in the first adjusting teeth；The other end of connecting rod passes through spring retaining plate and is located in the first eccentric groove；Compressed spring is installed between spring retaining plate and the first adjusting teeth；Pouring weight is mounted on the lower end of connecting rod, and pouring weight is located in the first eccentric groove；Pouring weight and the first adjusting teeth are located at the symmetrical two sides of transmission shaft；Institute's mounting structure is identical in each second teeth slot；For wherein any one, second adjusting teeth be mounted in the second teeth slot far from drive shaft axis one end；Teeth connecting plate is mounted on the lower end of the second adjusting teeth, and teeth connecting plate is located in the second eccentric groove；Equably there are many extension springs for installation between teeth connecting plate and the second eccentric groove；The both ends of transmission shaft are separately installed with a spring fixed disc, and two spring fixed disc hairs are located at the first adjusting teeth and second and adjust the two sides of teeth；The both ends of driving spring are separately mounted on two spring fixed discs, and driving spring is nested on transmission shaft；Driving spring adjusts teeth cooperation with the first adjusting teeth being mounted on transmission shaft and second respectively；Adjusting has external screw thread on the periphery of screw thread wheel；Adjusting has internal screw thread on the inner headed face of screw thread wheel；It adjusts screw thread wheel to be mounted on transmission shaft, and adjusts screw thread wheel and be located between two spring fixed discs；The internal screw thread and driving spring adjusted on screw thread wheel cooperates；The one end for adjusting U-loop has been mounted on regulation handle；One end that regulation handle is equipped on adjusting U-loop is mounted on transmission shaft；The other end for adjusting U-loop, which is mounted on, to be adjusted on end face of the screw thread wheel far from driving motor side；Internal gear is mounted in fixed plate by ring gear support, and on the outside of internal gear nesting and adjusting screw thread wheel；Internal gear and the external screw thread adjusted on screw thread wheel cooperate；Internal gear is far from symmetrically there are two arc pressuring plates for installation on a side end face of driving motor；Clutch disk is mounted on transmission shaft, and clutch disk is connect with two arc pressuring plates；One end of gear shaft is arranged close in the fixed plate of driving motor side
；Transmission gear is mounted on the other end of gear shaft；Transmission gear is engaged in driving spring.
[0006] as the further improvement of this technology, the above-mentioned second teeth inclination angle for adjusting teeth is greater than the first teeth inclination angle for adjusting teeth.
[0007] as the further improvement of this technology, above-mentioned adjusting screw thread wheel has position-limiting action to driving spring.
[0008] above-mentioned to control to adjust the relative position of screw thread wheel and driving spring by adjusting regulation handle before the use as the further improvement of this technology；To control the initial elasticity performance of driving spring.
[0009] above-mentioned first to adjust teeth in compressed spring and pouring weight in the initial state as the further improvement of this technology
Collective effect under height on the outside of the transmission shaft be less than transmission gear and driving spring engages inch, the gap between transmission gear and transmission shaft periphery；First adjusts height of the teeth under compressed spring and the collective effect of pouring weight on the outside of transmission shaft less than screw thread wheel and driving spring engagement inch is adjusted under original state, adjusts the gap between screw thread wheel and transmission shaft periphery.
[0010] as the further improvement of this technology, it is above-mentioned that the second maximum height for adjusting that teeth are on the outside of transmission shaft under extension spring and the collective effect of centrifugal force is less than transmission gear in the operating condition and driving spring engages inch, the gap between transmission gear and transmission shaft periphery；Second maximum height of teeth under the action of extension spring and centrifugal force on the outside of transmission shaft is adjusted less than screw thread wheel and driving spring engagement inch is adjusted in the operating condition, adjust the gap between screw thread wheel and transmission shaft periphery.
[0011] relative to traditional wheelchair actuation techniques, the wheelchair that the present invention designs can convert lower revolving speed for the high revolving speed of driving motor work inch by worm gearing；To drive wheelchair to work；Passing through automatic adjustment with inch can close or adjust because faulty operation is beaten between the pass Jian driving motor Jian inch can have enough inch in people.
[0012] transmission shaft is connect with driving motor output shaft in the present invention；On the periphery of transmission shaft in the axial direction on equably Jian there are many first teeth slot；The downside Jian of first teeth slot has the first eccentric groove, and each first teeth slot is communicated with the first eccentric groove；First eccentric groove passes through the center of transmission shaft；On the periphery of transmission shaft in the axial direction on equably Jian there are many second teeth slot；The downside Jian of second teeth slot has the second eccentric groove, and each second teeth slot is communicated with the second eccentric groove；At 90 degree of angles between first teeth slot and the second adjacent teeth slot；Institute's mounting structure is identical in each first teeth slot；For wherein any one, spring retaining plate be mounted in the first teeth slot close to drive shaft axis one end；First adjusting teeth are mounted on one end in the first teeth slot far from drive shaft axis；One end of connecting rod is mounted in the first adjusting teeth；The other end of connecting rod passes through spring retaining plate and is located in the first eccentric groove；Compressed spring is installed between spring retaining plate and the first adjusting teeth；Pouring weight is mounted on the lower end of connecting rod, and pouring weight is located in the first eccentric groove；Pouring weight and the first adjusting teeth are located at the symmetrical two sides of transmission shaft；Institute's mounting structure is identical in each second teeth slot；For wherein any one, second adjusting teeth be mounted in the second teeth slot far from drive shaft axis one end；Teeth connecting plate is mounted on the lower end of the second adjusting teeth, and teeth connecting plate is located in the second eccentric groove；Equably there are many extension springs for installation between teeth connecting plate and the second eccentric groove；The both ends of transmission shaft are separately installed with a spring fixed disc, and two spring fixed discs are located at
First, which adjusts teeth and second, adjusts the two sides of teeth；The both ends of driving spring are separately mounted on two spring fixed discs, and driving spring is nested on transmission shaft；Driving spring adjusts teeth cooperation with the first adjusting teeth being mounted on transmission shaft and second respectively；Adjusting has external screw thread on the periphery of screw thread wheel；Adjusting has internal screw thread on the inner headed face of screw thread wheel；It adjusts screw thread wheel to be mounted on transmission shaft, and adjusts screw thread wheel and be located between two spring fixed discs；The internal screw thread and driving spring adjusted on screw thread wheel cooperates；The one end for adjusting U-loop has been mounted on regulation handle；One end that regulation handle is equipped on adjusting U-loop is mounted on transmission shaft；The other end for adjusting u shape ring, which is mounted on, to be adjusted on end face of the screw thread wheel far from driving motor side；Internal gear is mounted in fixed plate by ring gear support, and on the outside of internal gear nesting and adjusting screw thread wheel；Internal gear and the external screw thread adjusted on screw thread wheel cooperate；Internal gear is far from symmetrically there are two arc pressuring plates for installation on a side end face of driving motor；Clutch disk is mounted on transmission shaft, and clutch disk is connect with two arc pressuring plates；One end of gear shaft is arranged close in the fixed plate of driving motor side；Transmission gear is mounted on the other end of gear shaft；Transmission gear is engaged in driving spring；The second teeth inclination angle for adjusting teeth is greater than the first teeth inclination angle for adjusting teeth in the present invention.Screw thread wheel is adjusted in the present invention has position-limiting action to driving spring.In the present invention relative position of screw thread wheel and driving spring can be controlled to adjust by adjusting regulation handle before the use；To control the initial elasticity performance of driving spring.The first height for adjusting that teeth are on the outside of transmission shaft under compressed spring and the collective effect of pouring weight is less than transmission gear in the initial state and driving spring engages inch, the gap between transmission gear and transmission shaft periphery；First adjusts height of the teeth under compressed spring and the collective effect of pouring weight on the outside of transmission shaft less than screw thread wheel and driving spring engagement inch is adjusted under original state, adjusts the gap between screw thread wheel and transmission shaft periphery.The second maximum height for adjusting that teeth are on the outside of transmission shaft under extension spring and the collective effect of centrifugal force is less than transmission gear in the operating condition and driving spring engages inch, the gap between transmission gear and transmission shaft periphery；Second maximum height of teeth under the action of extension spring and centrifugal force on the outside of transmission shaft is adjusted less than screw thread wheel and driving spring engagement inch is adjusted in the operating condition, adjust the gap between screw thread wheel and transmission shaft periphery.The wheelchair that people are designed using the present invention, people pass through rotation regulation handle before the use；It is driven by regulation handle and adjusts U-loop rotation；The dynamic screw thread wheel that adjusts of u shape annulus is adjusted to rotate；Since this inch driving motor is in shutdown status；I.e. internal gear remains static；Internal gear and the external screw thread adjusted on screw thread wheel cooperate；So adjusting screw thread wheel will be made to move along screw axle line is adjusted when adjusting the rotation of screw thread wheel, it can control to adjust the relative position of screw thread wheel and driving spring by adjusting regulation handle；To control the initial elasticity performance of driving spring.Into
And control the peak torque that driving spring can transmit；The initial elasticity performance inch of screw thread is regulated in people；Control driving motor Jian beginning work；Driving motor drives transmission shaft rotation；Transmission shaft drives two spring fixed disc rotations；Two spring fixed discs drive driving spring rotation；Driving spring rotation band nutating gear rotates；The rotation of drive gears movable gear shaft；It can be transmitted rotating force on the tire of wheelchair by gear shaft；And then it is worked by tyre rotation band wheelchair；In the present invention after driving the initial elasticity performance of driving spring of transmission gear rotation to determine；Driving motor work；In driving motor work inch, driving motor drives the speed of transmission shaft rotation that can be gradually increased, and since pouring weight is mounted on the lower end of connecting rod, and pouring weight is located in the first eccentric groove；Pouring weight and the first adjusting teeth are located at the symmetrical two sides of transmission shaft；So under the action of the centrifugal, it is mobile to the side for adjusting teeth far from first that pouring weight will drive connecting rod；Connecting rod drives first to adjust medial movement of the teeth to transmission shaft；And second adjusts teeth under the influence of centrifugal force gradually to the movement of the outside of transmission shaft；First adjusting teeth, first adjusting teeth in initial moving process can be gradually reduced the binding force of driving spring；And this inch second adjusts teeth and does not move out transmission shaft also；So the torque that this inch driving spring can transmit can constantly reduce；When the first adjusting teeth are soon moved fully to inch on the inside of transmission shaft, the second adjusting teeth are also just moved out transmission shaft；This inch first adjusts teeth and the second adjusting teeth are minimum to the binding force of driving spring；I.e. the torque that is transmitted of driving spring is minimum；And when the first adjusting teeth are moved fully to inch on the inside of transmission shaft, the height that the second adjusting tooth Tooth movement goes out transmission shaft also becomes larger；This inch second adjusts teeth and is gradually increased to the binding force of driving spring；The torque that i.e. driving spring can transmit also continues to increase；When the second adjusting teeth move out transmission shaft inch completely；The torque that driving spring is transmitted also reaches maximum stable state；That is the velocity of rotation of transmission gear also reaches stable state.People are using wheelchair inch, and Jian inch is beaten in the pass driving motor Jian because of faulty operation as people；Driving motor will work；Tire just can rotate；And this inch people subconsciousness will remove wheelchair tire of holding with a firm grip；If the larger inch of the driving torque of tire, it is possible to by strain in the arm；So adjusting teeth and second by control first in the present invention adjusts teeth to the binding force of driving spring；The bearing up pulley tire inch so that people are in one's hands；First adjusts teeth and the second adjusting teeth to the binding force minimum of driving spring；I.e. the torque that is transmitted of driving spring is minimum；That is the rotation torque of wheelchair tire is minimum；This inch is held with a firm grip wheelchair tire inch as people；Tire will stop operating；And driving spring will be squeezed in the tire final drive gear that stops operating；So that driving spring compresses；And when spring-compressed to limit inch；Driving spring band nutating gear will rotate again；But people have adjusted or have closed driving motor in the process；So can postpone to work as transmission gear by controlling the elasticity of driving spring in the present invention
Bearing capacity is increased suddenly between the inch that inch driving spring drives transmission gear to rotate again；Impact of a part of transmission gear to transmission shaft can be absorbed by the elasticity of driving spring with inch；Protect transmission shaft；Protect driving motor.The elastic property inch for adjusting driving spring in the present invention in the initial state, adjust screw thread wheel rotation process in, adjust screw thread wheel internal screw thread just with driving spring engagement rotation；So adjusting screw thread wheel will not interfere in moving process with driving spring；The teeth inclination angle for adjusting teeth due to second in the present invention is greater than the first teeth inclination angle for adjusting teeth；I.e. second adjusting teeth are being moved to binding force of the transmission shaft outermost inch to the binding force of driving spring greater than the first adjusting teeth in original state inch to driving spring；I.e. driving spring initially drives the torque of transmission gear to be less than the torque that the driving spring after transmission gear is stablized drives transmission gear.Since pouring weight is mounted on transmission shaft as a whole on the downside of be mounted on connecting rod in the present invention；So being moved together when pouring weight pouring weight in moving process will drive all connecting rods；It drives all first to adjust teeth to move together；So the first adjusting teeth all on transmission shaft are synchronous variations to the binding force of driving spring；I.e. driving spring bears transmission gear during rotation to the extruding force of driving spring by whole to the part that transmission gear works on transmitting torque inch, driving spring；Protect driving spring；Since teeth connecting plate and all first adjusting teeth on transmission shaft link together in the present invention；So all second adjusting teeth on transmission shaft can move together under the action of the centrifugal；The second adjusting teeth are synchronous variations to the binding force of driving spring i.e. on transmission shaft；I.e. driving spring bears transmission gear during rotation to the extruding force of driving spring by whole to the part that transmission gear works on transmitting torque inch, driving spring；Protect driving spring.
Advantageous effect of the invention
Beneficial effect
The wheelchair that people are designed using the present invention, people pass through rotation regulation handle before the use；It is driven by regulation handle and adjusts U-loop rotation；It adjusts U-loop and drives adjusting screw thread wheel rotation；Since this inch driving motor is in shutdown status；I.e. internal gear remains static；Internal gear and the external screw thread adjusted on screw thread wheel cooperate；So adjusting screw thread wheel will be made to move along screw axle line is adjusted when adjusting the rotation of screw thread wheel, it can control to adjust the relative position of screw thread wheel and driving spring by adjusting regulation handle；To control the initial elasticity performance of driving spring.And then control the peak torque that driving spring can transmit；The initial elasticity performance inch of screw thread is regulated in people；Control driving motor Jian beginning work；Driving motor drives transmission shaft rotation；Transmission shaft drives two spring fixed disc rotations；Two spring fixed discs drive driving spring rotation；Driving
Spring pivotal band nutating gear rotates；The rotation of drive gears movable gear shaft；It can be transmitted rotating force on the tire of wheelchair by gear shaft；And then it is worked by tyre rotation band wheelchair.
To the brief description of accompanying drawing
Detailed description of the invention
[0014] Fig. 1 is global facility scheme of installation.
[0015] Fig. 2 is global facility schematic diagram of internal structure.
[0016] Fig. 3 is global facility internal structure scheme of installation.
[0017] Fig. 4 is global facility internal structure distribution schematic diagram.
[0018] Fig. 5 is global facility internal structure schematic cross-sectional view.
[0019] Fig. 6 is internal gear structural schematic diagram.
[0020] Fig. 7 is to adjust screw thread wheel construction schematic diagram.
[0021] Fig. 8 is transmission gear scheme of installation.
[0022] Fig. 9 is transmission gear and driving spring cooperation schematic diagram.
[0023] Figure 10 is driving spring scheme of installation.
[0024] Figure 11 is the first adjusting teeth scheme of installation.
[0025] Figure 12 is the second adjusting teeth scheme of installation.
[0026] Figure 13 is the second eccentric groove distribution schematic diagram.
[0027] Figure 14 is the first eccentric groove distribution schematic diagram.
[0028] Figure 15 is transmission shaft structure schematic diagram.
[0029] Figure 16 is the first adjusting teeth distribution schematic diagram.
[0030] Figure 17 is the first adjusting tooth structure schematic diagram.
[0031] Figure 18 is the second adjusting teeth distribution schematic diagram.
[0032] Figure 19 is the second adjusting tooth structure schematic diagram.
[0033] Figure 20 is that the first adjusting teeth and second adjust teeth operation principle schematic diagram.
[0034] Figure 21 is gear shaft rotation speed change schematic diagram.
[0035] figure label title: 1, driving motor；2, motor support；3, ring gear supports；4, fixed plate；5, transmission shaft；6, driving spring；7, transmission gear；8, spring fixed disc；9, internal gear；10, arc pressuring plate；11, gear shaft；12, clutch disk；13, U-loop is adjusted；14, screw thread wheel is adjusted； 15
, regulation handle；16, first teeth are adjusted；17, spring retaining plate；18, compressed spring；19, pouring weight；20, the first eccentric groove；21, extension spring；22, teeth connecting plate；23, second teeth are adjusted；24, the second eccentric groove；25, the second teeth slot；26, the first teeth slot；27, connecting rod.
Implement the most preferred embodiment of the invention
Preferred forms of the invention
Such as Fig. 1, shown in 2, it includes driving motor 1, motor support 2, ring gear support 3, fixed plate 4, transmission shaft 5, driving spring 6, transmission gear 7, spring fixed disc 8, internal gear 9, arc pressuring plate 10, gear shaft 11, clutch disk 12, adjust U-loop 13, adjust screw thread wheel 14, regulation handle 15, first adjusts teeth 16, spring retaining plate 17, compressed spring 18, pouring weight 19, first eccentric groove 20, extension spring 21, teeth connecting plate 22, second adjusts teeth 23, second eccentric groove 24, second teeth slot 25, first teeth slot 26, connecting rod 27, wherein as shown in Figure 1, driving motor 1 is mounted in fixed plate 4 by motor support 2；As shown in figure 3, transmission shaft 5 and driving motor 1 export axis connection；As shown in figure 14, on the periphery of transmission shaft 5 in the axial direction on equably Jian there are many first teeth slot 26;The downside Jian of first teeth slot 26 has the first eccentric groove 20, and each first teeth slot 26 is communicated with the first eccentric groove 20；First eccentric groove 20 passes through the center of transmission shaft 5；As shown in figure 13, on the periphery of transmission shaft 5 in the axial direction on equably Jian there are many second teeth slot 25；The downside Jian of second teeth slot 25 has the second eccentric groove 24, and each second teeth slot 25 is communicated with the second eccentric groove 24；As shown in figure 15, at 90 degree of angles between the first teeth slot 26 and the second adjacent teeth slot 25；Institute's mounting structure is identical in each first teeth slot 26；For wherein any one, as shown in Figure 11, spring retaining plate 17 be mounted in the first teeth slot 26 close to 5 axis of transmission shaft one end；First adjusting teeth 16 are mounted on one end in the first teeth slot 26 far from 5 axis of transmission shaft；As shown in figure 17, one end of connecting rod 27 is mounted in the first adjusting teeth 16；The other end of connecting rod 27 passes through spring retaining plate 17 and is located in the first eccentric groove 20；Compressed spring 18 is installed between spring retaining plate 17 and the first adjusting teeth 16;As shown in Fig. 16, pouring weight 19 is mounted on the lower end of connecting rod 27, and pouring weight 19 is located in the first eccentric groove 20；Pouring weight 19 and the first adjusting teeth 16 are located at the symmetrical two sides of transmission shaft 5；As shown in figure 12, institute's mounting structure is identical in each second teeth slot 25；For wherein any one, as shown in figure 19, second adjusting teeth 23 be mounted in the second teeth slot 25 far from 5 axis of transmission shaft one end；As shown in figure 18, teeth connecting plate 22 is mounted on the lower end of the second adjusting teeth 23, and teeth connecting plate 22 is located in the second eccentric groove 24；Equably there are many extension springs 21 for installation between teeth connecting plate 22 and the second eccentric groove 24;As shown in figure 4, transmission
The both ends of axis 5 are separately installed with a spring fixed disc 8, and two spring fixed discs 8 send out the two sides for being located at the first adjusting teeth 16 and the second adjusting teeth 23；As shown in Figure 10, the both ends of driving spring 6 are separately mounted on two spring fixed discs 8, as shown in figure 9, and driving spring 6 be nested on transmission shaft 5；Driving spring 6 adjusts teeth 23 with the first adjusting teeth 16 being mounted on transmission shaft 5 and second respectively and cooperates；As shown in Fig. 7, adjusting has external screw thread on the periphery of screw thread wheel 14；Adjusting has internal screw thread on the inner headed face of screw thread wheel 14；It adjusts screw thread wheel 14 to be mounted on transmission shaft 5, and adjusts screw thread wheel 14 and be located between two spring fixed discs 8；The internal screw thread and driving spring 6 adjusted on screw thread wheel 14 cooperates；The one end for adjusting U-loop 13 has been mounted on regulation handle 15;One end that regulation handle 15 is equipped on adjusting U-loop 13 is mounted on transmission shaft 5；The other end for adjusting U-loop 13, which is mounted on, to be adjusted on end face of the screw thread wheel 14 far from 1 side of driving motor；As shown in fig. 6, internal gear 9 is mounted in fixed plate 4 by ring gear support 3, and internal gear 9 is nested and adjusts 14 outside of screw thread wheel；Internal gear 9 and the external screw thread adjusted on screw thread wheel 14 cooperate；As shown in figure 5, internal gear 9 is far from symmetrically there are two arc pressuring plates 10 for installation on a side end face of driving motor 1;Clutch disk 12 is mounted on transmission shaft 5, and clutch disk 12 is connect with two arc pressuring plates 10；As shown in figure 8, one end of gear shaft 11 is arranged close in the fixed plate 4 of 1 side of driving motor；Transmission gear 7 is mounted on the other end of gear shaft 11；As shown in figure 9, transmission gear 7 is engaged in driving spring 6.Embodiments of the present invention
[0037] the above-mentioned second teeth inclination angle for adjusting teeth 23 is greater than the first teeth inclination angle for adjusting teeth 16.
[0038] above-mentioned adjusting screw thread wheel 14 has position-limiting action to driving spring 6.
[0039] above-mentioned to control to adjust the relative position of screw thread wheel 14 Yu driving spring 6 by adjusting regulation handle 15 before the use；To control the initial elasticity performance of driving spring 6.
[0040] above-mentioned first height for adjusting that teeth 16 are on the outside of transmission shaft 5 under compressed spring 18 and the collective effect of pouring weight 19 in the initial state is less than transmission gear 7 and driving spring 6 engages inch, the gap between 5 periphery of transmission gear 7 and transmission shaft；The first height for adjusting that teeth 16 are on the outside of transmission shaft 5 under compressed spring 18 and the collective effect of pouring weight 19 is less than adjusting screw thread wheel 14 under original state and driving spring 6 engages inch, the gap between adjusting screw thread wheel 14 and 5 periphery of transmission shaft.
It is [0041] above-mentioned that the second maximum height for adjusting that teeth 23 are on the outside of transmission shaft 5 under extension spring 21 and the collective effect of centrifugal force is less than transmission gear 7 in the operating condition and driving spring 6 engages inch, transmission gear 7 and transmission shaft 5
Gap between periphery；The second maximum height for adjusting that teeth 23 are on the outside of transmission shaft 5 under the action of extension spring 21 and centrifugal force is less than adjusting screw thread wheel 14 in the operating condition and driving spring 6 engages inch, the gap between adjusting screw thread wheel 14 and 5 periphery of transmission shaft.
[0042] in summary: the wheelchair that the present invention designs can convert lower revolving speed for the high revolving speed of the work inch of driving motor 1 by worm gearing；To drive wheelchair to work；Passing through automatic adjustment with inch can close or adjust because faulty operation is beaten between the pass 1 Jian of Jian driving motor inch can have enough inch in people.
[0043] transmission shaft 5 and driving motor 1 export axis connection in the present invention；On the periphery of transmission shaft 5 in the axial direction on equably Jian there are many first teeth slot 26;The downside Jian of first teeth slot 26 has the first eccentric groove 20, and each first teeth slot 26 is communicated with the first eccentric groove 20；First eccentric groove 20 passes through the center of transmission shaft 5；On the periphery of transmission shaft 5 in the axial direction on equably Jian there are many second teeth slot 25;The downside Jian of second teeth slot 25 has the second eccentric groove 24, and each second teeth slot 25 is communicated with the second eccentric groove 24；At 90 degree of angles between first teeth slot 26 and the second adjacent teeth slot 25；Institute's mounting structure is identical in each first teeth slot 26；For wherein any one, spring retaining plate 17 be mounted in the first teeth slot 26 close to 5 axis of transmission shaft one end；First adjusting teeth 16 are mounted on one end in the first teeth slot 26 far from 5 axis of transmission shaft；One end of connecting rod 27 is mounted in the first adjusting teeth 16；The other end of connecting rod 27 passes through spring retaining plate 17 and is located in the first eccentric groove 20；Compressed spring 18 is installed between spring retaining plate 17 and the first adjusting teeth 16;Pouring weight 19 is mounted on the lower end of connecting rod 27, and pouring weight 19 is located in the first eccentric groove 20；Pouring weight 19 and the first adjusting teeth 16 are located at the symmetrical two sides of transmission shaft 5；Institute's mounting structure is identical in each second teeth slot 25；For wherein any one, second adjusting teeth 23 be mounted in the second teeth slot 25 far from 5 axis of transmission shaft one end；Teeth connecting plate 22 is mounted on the lower end of the second adjusting teeth 23, and teeth connecting plate 22 is located in the second eccentric groove 24；Equably there are many extension springs 21 for installation between teeth connecting plate 22 and the second eccentric groove 24;The both ends of transmission shaft 5 are separately installed with a spring fixed disc 8, and two spring fixed discs8It is located at the two sides of the first adjusting teeth 16 and the second adjusting teeth 23；The both ends of driving spring 6 are separately mounted on two spring fixed discs 8, and driving spring 6 is nested on transmission shaft 5；Driving spring 6 adjusts teeth 23 with the first adjusting teeth 16 being mounted on transmission shaft 5 and second respectively and cooperates；Adjusting has external screw thread on the periphery of screw thread wheel 14；Adjusting has internal screw thread on the inner headed face of screw thread wheel 14；It adjusts screw thread wheel 14 to be mounted on transmission shaft 5, and adjusts screw thread wheel 14 and be located between two spring fixed discs 8；The internal screw thread and driving spring 6 adjusted on screw thread wheel 14 cooperates；The one end for adjusting U-loop 13 has been mounted on tune
Save handle 15;One end that regulation handle 15 is equipped on adjusting U-loop 13 is mounted on transmission shaft 5；The other end for adjusting U-loop 13, which is mounted on, to be adjusted on end face of the screw thread wheel 14 far from 1 side of driving motor；Internal gear 9 is mounted in fixed plate 4 by ring gear support 3, and internal gear 9 is nested and adjusts 14 outside of screw thread wheel；Internal gear 9 and the external screw thread adjusted on screw thread wheel 14 cooperate；Internal gear 9 is far from symmetrically there are two arc pressuring plates 10 for installation on a side end face of driving motor 1;Clutch disk 12 is mounted on transmission shaft 5, and clutch disk 12 is connect with two arc pressuring plates 10；One end of gear shaft 11 is arranged close in the fixed plate 4 of 1 side of driving motor；Transmission gear 7 is mounted on the other end of gear shaft 11；Transmission gear 7 is engaged in driving spring 6；The second teeth inclination angle for adjusting teeth 23 is greater than the first teeth inclination angle for adjusting teeth 16 in the present invention.Screw thread wheel 14 is adjusted in the present invention has position-limiting action to driving spring 6.In the present invention relative position of screw thread wheel 14 Yu driving spring 6 can be controlled to adjust by adjusting regulation handle 15 before the use；To control the initial elasticity performance of driving spring 6.The first height for adjusting that teeth 16 are on the outside of transmission shaft 5 under compressed spring 18 and the collective effect of pouring weight 19 is less than transmission gear 7 in the initial state and driving spring 6 engages inch, the gap between 5 periphery of transmission gear 7 and transmission shaft；The first height for adjusting that teeth 16 are on the outside of transmission shaft 5 under compressed spring 18 and the collective effect of pouring weight 19 is less than adjusting screw thread wheel 14 under original state and driving spring 6 engages inch, the gap between adjusting screw thread wheel 14 and 5 periphery of transmission shaft.The second maximum height for adjusting that teeth 23 are on the outside of transmission shaft 5 under extension spring 21 and the collective effect of centrifugal force is less than transmission gear 7 in the operating condition and driving spring 6 engages inch, the gap between 5 periphery of transmission gear 7 and transmission shaft；The second maximum height for adjusting that teeth 23 are on the outside of transmission shaft 5 under the action of extension spring 21 and centrifugal force is less than adjusting screw thread wheel 14 in the operating condition and driving spring 6 engages inch, the gap between adjusting screw thread wheel 14 and 5 periphery of transmission shaft.The wheelchair that people are designed using the present invention, people pass through rotation regulation handle 15 before the use;It is driven by regulation handle 15 and adjusts the rotation of U-loop 13；Adjusting U-loop 13 drives adjusting screw thread wheel 14 to rotate；Since this inch driving motor 1 is in shutdown status；I.e. internal gear 9 remains static；Internal gear 9 and the external screw thread adjusted on screw thread wheel 14 cooperate；So adjusting screw thread wheel 14 will be made to move along 14 axis of screw thread wheel is adjusted when adjusting the rotation of screw thread wheel 14, it can control to adjust the relative position of screw thread wheel 14 Yu driving spring 6 by adjusting regulation handle 15；To control the initial elasticity performance of driving spring 6.And then control the peak torque that driving spring 6 can transmit；The initial elasticity performance inch of screw thread is regulated in people；Control 1 Jian beginning work of driving motor；Driving motor 1 drives transmission shaft 5 to rotate；Transmission shaft 5 drives two spring fixed discs 8 to rotate；Two spring fixed discs 8 drive driving spring 6 to rotate；The rotation band nutating gear 7 of driving spring 6 rotates；Transmission gear 7 is with moving gear
Axis 11 rotates；It can be transmitted rotating force on the tire of wheelchair by gear shaft 11；And then it is worked by tyre rotation band wheelchair；In the present invention after initial elasticity performance for the driving spring 6 for driving transmission gear 7 to rotate determines；Driving motor 1 works；In the work inch of driving motor 1, the speed that driving motor 1 drives transmission shaft 5 to rotate can be gradually increased, and since pouring weight 19 is mounted on the lower end of connecting rod 27, and pouring weight 19 is located in the first eccentric groove 20；Pouring weight 19 and the first adjusting teeth 16 are located at the symmetrical two sides of transmission shaft 5；So under the action of the centrifugal, it is mobile to the side for adjusting teeth 16 far from first that pouring weight 19 will drive connecting rod 27；Connecting rod 27 drives first to adjust medial movement of the teeth 16 to transmission shaft 5；And second adjusts teeth 23 under the influence of centrifugal force gradually to the movement of the outside of transmission shaft 5；First adjusting teeth 16, first adjusting teeth 16 in initial moving process can be gradually reduced the binding force of driving spring 6；And this inch second adjusts teeth 23 and does not move out transmission shaft 5 also;As shown in Figure 20 (a-b) section, so the torque that this inch driving spring 6 can transmit can constantly reduce；When the first adjusting teeth 16 are soon moved fully to 5 inside inch of transmission shaft, the second adjusting teeth 23 are also just moved out transmission shaft 5;This inch first adjusts teeth 16 and the second adjusting teeth 23 are minimum to the binding force of driving spring 6；As shown in Figure 20 (b-c) section, i.e., the torque that is transmitted of driving spring 6 is minimum；And when the first adjusting teeth 16 are moved fully to 5 inside inch of transmission shaft, the height that the second adjusting teeth 23 move out transmission shaft 5 also becomes larger；This inch second adjusts teeth 23 and is gradually increased to the binding force of driving spring 6；As shown in Figure 20 (c-d) section, i.e., the torque that driving spring 6 can transmit also continues to increase；When the second adjusting teeth 23 move out 5 inch of transmission shaft completely；The torque that driving spring 6 is transmitted also reaches maximum stable state；As shown in figure 21, i.e. the velocity of rotation of transmission gear 7 also reaches stable state.People are using wheelchair inch, and Jian inch is beaten in the pass 1 Jian of driving motor because of faulty operation as people；Driving motor 1 will work；Tire just can rotate；And this inch people subconsciousness will remove wheelchair tire of holding with a firm grip；If the larger inch of the driving torque of tire, it is possible to by strain in the arm；So adjusting teeth 16 and second by control first in the present invention adjusts teeth 23 to the binding force of driving spring 6；The bearing up pulley tire inch so that people are in one's hands；First adjusts teeth 16 and the second adjusting teeth 23 to the binding force minimum of driving spring 6；I.e. the torque that is transmitted of driving spring 6 is minimum；That is the rotation torque of wheelchair tire is minimum；This inch is held with a firm grip wheelchair tire inch as people；Tire will stop operating；And driving spring 6 will be squeezed in the tire final drive gear 7 that stops operating;So that driving spring 6 compresses；And when spring-compressed to limit inch；Driving spring 6 band nutating gear 7 will rotate again；But people have adjusted or have closed driving motor 1 in the process；So can be postponed between 7 bearing capacity of transmission gear increases the inch that inch driving spring 6 drives transmission gear 7 to rotate again suddenly by controlling the elasticity of driving spring 6 in the present invention；Pass through the bullet of driving spring 6 with inch
Impact of a part of transmission gear 7 to transmission shaft 5 can be absorbed in property；Protect transmission shaft 5;Protect driving motor 1.The elastic property inch for adjusting driving spring 6 in the present invention in the initial state, adjust screw thread wheel 14 rotation process in, adjust screw thread wheel 14 internal screw thread just with 6 engagement rotation of driving spring；So adjusting screw thread wheel 14 will not interfere in moving process with driving spring 6；The teeth inclination angle for adjusting teeth 23 due to second in the present invention is greater than the first teeth inclination angle for adjusting teeth 16；I.e. second adjusting teeth 23 are being moved to binding force of the 5 outermost inch of transmission shaft to the binding force of driving spring 6 greater than the first adjusting teeth 16 in original state inch to driving spring 6；I.e. driving spring 6 initially drives the torque of transmission gear 7 to be less than the torque that the driving spring 6 after transmission gear 7 is stablized drives transmission gear 7.Since pouring weight 19 is to be mounted on be mounted on 27 downside of connecting rod on transmission shaft 5 as a whole in the present invention；So playing movement when the pouring weight 19 in moving process of pouring weight 19 will drive all connecting rods 27-；It drives all first to adjust teeth 16-and plays movement；So the first adjusting teeth 16 all on transmission shaft 5 are synchronous variations to the binding force of driving spring 6；I.e. driving spring 6 bears transmission gear 7 during rotation to the extruding force of driving spring 6 by whole to the part that transmission gear 7 works on transmitting torque inch, driving spring 6；Since teeth connecting plate 22 and all first adjusting teeth 16 on transmission shaft 5 link together in the present invention；So all second adjusting teeth 23 on transmission shaft 5 can move together under the action of the centrifugal；Second adjusting teeth 23 are synchronous variations to the binding force of driving spring 6 i.e. on transmission shaft 5；I.e. driving spring 6 bears transmission gear 7 during rotation to the extruding force of driving spring 6 by whole to the part that transmission gear 7 works on transmitting torque inch, driving spring 6.
Specific embodiment: the wheelchair that people are designed using the present invention, people pass through rotation regulation handle 15 before the use;It is driven by regulation handle 15 and adjusts the rotation of U-loop 13；Adjusting U-loop 13 drives adjusting screw thread wheel 14 to rotate；Since this inch driving motor 1 is in shutdown status；I.e. internal gear 9 remains static；Internal gear 9 and the external screw thread adjusted on screw thread wheel 14 cooperate；So adjusting screw thread wheel 14 will be made to move along 14 axis of screw thread wheel is adjusted when adjusting the rotation of screw thread wheel 14, it can control to adjust the relative position of screw thread wheel 14 Yu driving spring 6 by adjusting regulation handle 15；To control the initial elasticity performance of driving spring 6.And then control the peak torque that driving spring 6 can transmit；The initial elasticity performance inch of screw thread is regulated in people；Control 1 Jian beginning work of driving motor；Driving motor 1 drives transmission shaft 5 to rotate；Transmission shaft 5 drives two spring fixed discs 8 to rotate；Two spring fixed discs 8 drive driving spring 6 to rotate；The rotation band nutating gear 7 of driving spring 6 rotates；Transmission gear 7 is rotated with movable gear shaft 11；It can be transmitted rotating force on the tire of wheelchair by gear shaft 11；And then it is worked by tyre rotation band wheelchair.
Industrial applicibility
[0045] present invention has researched and developed success, and uses in industrial technical field；Therefore the present invention is industrially applicable.
[0046] it is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or essential characteristics of the present invention, the present invention can be realized in other specific forms.Therefore, no matter from what point of view, the embodiments should be taken as exemplary, and it is non-limiting, the scope of the invention being indicated by the appended claims rather than by the foregoing description, it is intended that including all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
[0047] furthermore, it should be understood that, although this specification is described in terms of embodiments, every embodiment includes only a single technical solution, this description of the specification is merely for the sake of clarity, the skilled in the art should refer to the specification as a whole, and the technical solutions in the various embodiments may also be suitably combined, forms other embodiments that can be understood by those skilled in the art.
Claims (1)
- ClaimsA kind of [claim 1] worm gearing for wheelchair, it is characterized by: it includes driving motor, motor support, ring gear support, fixed plate, transmission shaft, driving spring, transmission gear, spring fixed disc, internal gear, arc pressuring plate, gear shaft, clutch disk, adjust U-loop, adjust screw thread wheel, regulation handle, first adjusts teeth, spring retaining plate, compressed spring, pouring weight, first eccentric groove, extension spring, teeth connecting plate, second adjusts teeth, second eccentric groove, second teeth slot, first teeth slot, connecting rod, wherein driving motor is mounted in fixed plate by motor support；Transmission shaft is connect with driving motor output shaft；On the periphery of transmission shaft in the axial direction on equably Jian there are many first teeth slot；The downside Jian of first teeth slot has the first eccentric groove, and each first teeth slot is communicated with the first eccentric groove；First eccentric groove passes through the center of transmission shaft；On the periphery of transmission shaft in the axial direction on equably Jian there are many second teeth slot；The downside Jian of second teeth slot has the second eccentric groove, and each second teeth slot is communicated with the second eccentric groove；At 90 degree of angles between first teeth slot and the second adjacent teeth slot；Institute's mounting structure is identical in each first teeth slot；For wherein any one, spring retaining plate be mounted in the first teeth slot close to drive shaft axis one end；First adjusting teeth are mounted on one end in the first teeth slot far from drive shaft axis；One end of connecting rod is mounted in the first adjusting teeth；The other end of connecting rod passes through spring retaining plate and is located in the first eccentric groove；Compressed spring is installed between spring retaining plate and the first adjusting teeth；Pouring weight is mounted on the lower end of connecting rod, and pouring weight is located in the first eccentric groove；Pouring weight and the first adjusting teeth are located at the symmetrical two sides of transmission shaft；Institute's mounting structure is identical in each second teeth slot；For wherein any one, second adjusting teeth be mounted in the second teeth slot far from drive shaft axis one end；Teeth connecting plate is mounted on the lower end of the second adjusting teeth, and teeth connecting plate is located in the second eccentric groove；Equably there are many extension springs for installation between teeth connecting plate and the second eccentric groove；The both ends of transmission shaft are separately installed with a spring fixed disc, and two spring fixed disc hairs are located at the first adjusting teeth and second and adjust the two sides of teeth；The both ends of driving spring are separately mounted on two spring fixed discs, and driving spring is nested on transmission shaft；Driving spring adjusts teeth cooperation with the first adjusting teeth being mounted on transmission shaft and second respectively；Adjusting has external screw thread on the periphery of screw thread wheel；Adjusting has internal screw thread on the inner headed face of screw thread wheel；It adjusts Screw thread wheel is mounted on transmission shaft, and is adjusted screw thread wheel and be located between two spring fixed discs；The internal screw thread and driving spring adjusted on screw thread wheel cooperates；The one end for adjusting U-loop has been mounted on regulation handle；One end that regulation handle is equipped on adjusting U-loop is mounted on transmission shaft；The other end for adjusting u shape ring, which is mounted on, to be adjusted on end face of the screw thread wheel far from driving motor side；Internal gear is mounted in fixed plate by ring gear support, and on the outside of internal gear nesting and adjusting screw thread wheel；Internal gear and the external screw thread adjusted on screw thread wheel cooperate；Internal gear is far from symmetrically there are two arc pressuring plates for installation on a side end face of driving motor；Clutch disk is mounted on transmission shaft, and clutch disk is connect with two arc pressuring plates；One end of gear shaft is arranged close in the fixed plate of driving motor side；Transmission gear is mounted on the other end of gear shaft；Transmission gear is engaged in driving spring.[claim 2] a kind of worm gearing for wheelchair according to claim 1, it is characterised in that: the above-mentioned second teeth inclination angle for adjusting teeth is greater than the first teeth inclination angle for adjusting teeth.[claim 3] a kind of worm gearing for wheelchair according to claim 1, it is characterised in that: above-mentioned adjusting screw thread wheel has position-limiting action to driving spring.[claim 4] a kind of worm gearing for wheelchair according to claim 1, it is characterised in that: above-mentioned to control to adjust the relative position of screw thread wheel and driving spring by adjusting regulation handle before the use；To control the initial elasticity performance of driving spring.A kind of [claim 5] worm gearing for wheelchair according to claim 1, it is characterized by: above-mentioned, the first height for adjusting that teeth are on the outside of transmission shaft under compressed spring and the collective effect of pouring weight is less than transmission gear in the initial state and driving spring engages inch, the gap between transmission gear and transmission shaft periphery；First adjusts height of the teeth under compressed spring and the collective effect of pouring weight on the outside of transmission shaft less than screw thread wheel and driving spring engagement inch is adjusted under original state, adjusts the gap between screw thread wheel and transmission shaft periphery.A kind of [claim 6] worm gearing for wheelchair according to claim 1, it is characterized by: above-mentioned, the second maximum height for adjusting that teeth are on the outside of transmission shaft under extension spring and the collective effect of centrifugal force is less than transmission gear in the operating condition and driving spring engages inch, the gap between transmission gear and transmission shaft periphery；In the operating condition second maximum height of teeth under the action of extension spring and centrifugal force on the outside of transmission shaft is adjusted less than adjusting screw thread wheel and driving Spring engages inch, adjusts the gap between screw thread wheel and transmission shaft periphery.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017109238451 | 2017-09-30 | ||
| CN201710923845.1A CN107647987B (en) | 2017-09-30 | 2017-09-30 | Worm transmission mechanism for wheelchair |
| PCT/CN2017/106030 WO2019061559A1 (en) | 2017-09-30 | 2017-10-13 | Worm drive mechanism for wheelchair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110381903A true CN110381903A (en) | 2019-10-25 |
| CN110381903B CN110381903B (en) | 2020-07-28 |
Family
ID=61117335
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710923845.1A Active CN107647987B (en) | 2017-09-30 | 2017-09-30 | Worm transmission mechanism for wheelchair |
| CN201780088400.4A Active CN110381903B (en) | 2017-09-30 | 2017-10-13 | Worm transmission mechanism for wheelchair |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710923845.1A Active CN107647987B (en) | 2017-09-30 | 2017-09-30 | Worm transmission mechanism for wheelchair |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN107647987B (en) |
| WO (1) | WO2019061559A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107647987A (en) * | 2017-09-30 | 2018-02-02 | 常熟市平方轮椅有限公司 | A kind of worm gearing for wheelchair |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654580A (en) * | 2017-09-30 | 2018-02-02 | 常熟市平方轮椅有限公司 | A kind of controllable worm gearing of wheelchair |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1474916A (en) * | 2000-11-16 | 2004-02-11 | ����-��ϣ�ɷݹ�˾ | Gear train element for play-free torque transmission |
| CN201300733Y (en) * | 2008-10-17 | 2009-09-02 | 东莞市智维数控科技有限公司 | Driver for an electric wheelchair |
| CN202132422U (en) * | 2011-08-02 | 2012-02-01 | 陈仲安 | Self-regulation function transmission mechanism of automatic regulating arm for braking clearance of automobile |
| CN202950855U (en) * | 2012-12-17 | 2013-05-29 | 浙江联宜电机股份有限公司 | Gear clutch device of electrically propelled wheelchair |
| CN103840603A (en) * | 2012-11-26 | 2014-06-04 | 德昌电机(深圳)有限公司 | Driving device |
| CN203777184U (en) * | 2014-04-13 | 2014-08-20 | 昆山奥仕达电动科技有限公司 | Electric wheelchair |
| CN104207898A (en) * | 2014-08-22 | 2014-12-17 | 太仓市中峰模具塑胶有限公司 | Driving device for electric wheelchair |
| CN104434427A (en) * | 2013-09-18 | 2015-03-25 | 凌春林 | Magnetic massage wheelchair for the disabled |
| US20150252940A1 (en) * | 2014-03-05 | 2015-09-10 | BlueSky Designs, Inc. | Mounting and positioning apparatus for increased user independence |
| CN105305719A (en) * | 2015-11-24 | 2016-02-03 | 王琳 | Worm transmission mechanism |
| CN105471167A (en) * | 2015-12-01 | 2016-04-06 | 宁波市镇海元益机电制造有限公司 | Permanent-magnet deceleration motor for electrically propelled wheelchair |
| KR20160103634A (en) * | 2015-02-25 | 2016-09-02 | 계명대학교 산학협력단 | wheelchair with mountable power train system and controlled by passenger motion |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2623587B1 (en) * | 1987-11-23 | 1992-04-03 | Rockwell Cim | MOTOR-REDUCING DEVICE FOR DRIVING A WORKPIECE WITH SAFETY EFFORT CONTROL |
| CN201057245Y (en) * | 2007-05-08 | 2008-05-07 | 郭聿耘 | Automatic clearance-eliminating worm-gear drive pair |
| CN102028588A (en) * | 2010-12-22 | 2011-04-27 | 常熟市平方轮椅有限公司 | Manual wheelchair |
| CN202505628U (en) * | 2012-01-16 | 2012-10-31 | 周拥军 | Engaging and disengaging type electrically powered wheelchair driver |
| CN105857283B (en) * | 2015-05-18 | 2018-09-25 | 北京京西重工有限公司 | Brake boost device assembly |
| CN107647987B (en) * | 2017-09-30 | 2023-11-24 | 美而特智能后勤服务有限公司 | Worm transmission mechanism for wheelchair |
-
2017
- 2017-09-30 CN CN201710923845.1A patent/CN107647987B/en active Active
- 2017-10-13 CN CN201780088400.4A patent/CN110381903B/en active Active
- 2017-10-13 WO PCT/CN2017/106030 patent/WO2019061559A1/en active Application Filing
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1474916A (en) * | 2000-11-16 | 2004-02-11 | ����-��ϣ�ɷݹ�˾ | Gear train element for play-free torque transmission |
| CN201300733Y (en) * | 2008-10-17 | 2009-09-02 | 东莞市智维数控科技有限公司 | Driver for an electric wheelchair |
| CN202132422U (en) * | 2011-08-02 | 2012-02-01 | 陈仲安 | Self-regulation function transmission mechanism of automatic regulating arm for braking clearance of automobile |
| CN103840603A (en) * | 2012-11-26 | 2014-06-04 | 德昌电机(深圳)有限公司 | Driving device |
| CN202950855U (en) * | 2012-12-17 | 2013-05-29 | 浙江联宜电机股份有限公司 | Gear clutch device of electrically propelled wheelchair |
| CN104434427A (en) * | 2013-09-18 | 2015-03-25 | 凌春林 | Magnetic massage wheelchair for the disabled |
| US20150252940A1 (en) * | 2014-03-05 | 2015-09-10 | BlueSky Designs, Inc. | Mounting and positioning apparatus for increased user independence |
| CN203777184U (en) * | 2014-04-13 | 2014-08-20 | 昆山奥仕达电动科技有限公司 | Electric wheelchair |
| CN104207898A (en) * | 2014-08-22 | 2014-12-17 | 太仓市中峰模具塑胶有限公司 | Driving device for electric wheelchair |
| KR20160103634A (en) * | 2015-02-25 | 2016-09-02 | 계명대학교 산학협력단 | wheelchair with mountable power train system and controlled by passenger motion |
| CN105305719A (en) * | 2015-11-24 | 2016-02-03 | 王琳 | Worm transmission mechanism |
| CN105471167A (en) * | 2015-12-01 | 2016-04-06 | 宁波市镇海元益机电制造有限公司 | Permanent-magnet deceleration motor for electrically propelled wheelchair |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107647987A (en) * | 2017-09-30 | 2018-02-02 | 常熟市平方轮椅有限公司 | A kind of worm gearing for wheelchair |
| CN107647987B (en) * | 2017-09-30 | 2023-11-24 | 美而特智能后勤服务有限公司 | Worm transmission mechanism for wheelchair |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107647987A (en) | 2018-02-02 |
| CN107647987B (en) | 2023-11-24 |
| CN110381903B (en) | 2020-07-28 |
| WO2019061559A1 (en) | 2019-04-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110382911A (en) | A kind of wheelchair worm gearing | |
| CN107654580A (en) | A kind of controllable worm gearing of wheelchair | |
| CN107496089A (en) | A kind of controllable worm gearing for wheelchair | |
| CN110381903A (en) | A kind of worm gearing for wheelchair | |
| JP2019515208A (en) | Cycloid reducer provided with a play automatic correction device and power steering system provided with the reducer | |
| CN106958641B (en) | Planet differential variable-speed shaft | |
| CN214946780U (en) | Valve core transmission part, valve controller and valve | |
| CN103339398B (en) | clutch device | |
| CN103925308A (en) | Non-friction clutch | |
| CN201244925Y (en) | Stepless stroke variable apparatus of press | |
| CN107077096A (en) | The movement of stem-winder | |
| CN213628720U (en) | Double-speed-ratio speed reducer | |
| CN106481790B (en) | adaptive transmission device | |
| CN104482075A (en) | Clutch and variable speed driving hub | |
| CN209959744U (en) | Clutch device of wind power generation sleeve shaft | |
| KR101851901B1 (en) | Dual Cycloid Worm Reducer | |
| CN105114584B (en) | Arcuate friction for electric vehicle is driven self-adapting automatic gear shift device | |
| CN206608147U (en) | A kind of single motor blue elephant of decelerator built in use roller | |
| CN115638215A (en) | Agricultural gear box with self-adaptation gear adjustment | |
| CN203740688U (en) | Steady pressure coiling apparatus controlled by computer | |
| CN209458363U (en) | A kind of stepless transmission | |
| KR101851900B1 (en) | Dual Cycloid Gear Reducer | |
| CN106468334B (en) | Motor self-adapting power device | |
| CN216781820U (en) | Manual clutch device for realizing state switching of rotary joint | |
| CN204677720U (en) | Planet differential variable-speed shaft and speed variator system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200702 Address after: 317100 Room 307-1, Building 1, Chaoyang Road, Hairun Street, Sanmen County, Taizhou City, Zhejiang Province Applicant after: Taizhou Shengchuang Technology Co.,Ltd. Address before: 215554, Changshou City, Jiangsu province Suzhou Lake Town, Tong Tong Industrial Park 2 Applicant before: CHANGSHU PINGFANG WHEELCHAIR Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210728 Address after: 276000 Room 518, administrative service center, No. 1, Renmin Road, Pingshang Town, Lingang Economic Development Zone, Linyi City, Shandong Province Patentee after: Linyi xingchuangda Intellectual Property Operation Co.,Ltd. Address before: 317100 Room 307-1, Building 1, Chaoyang Road, Hairun Street, Sanmen County, Taizhou City, Zhejiang Province Patentee before: Taizhou Shengchuang Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |