CN109131717A - A kind of low cost Environmental sanitation tricycle speed change gear - Google Patents
A kind of low cost Environmental sanitation tricycle speed change gear Download PDFInfo
- Publication number
- CN109131717A CN109131717A CN201810934193.6A CN201810934193A CN109131717A CN 109131717 A CN109131717 A CN 109131717A CN 201810934193 A CN201810934193 A CN 201810934193A CN 109131717 A CN109131717 A CN 109131717A
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- gear
- speed change
- change pin
- wirerope
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- 230000008859 change Effects 0.000 title claims abstract description 286
- 230000007613 environmental effect Effects 0.000 title claims abstract description 18
- 230000000694 effects Effects 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 238000005304 joining Methods 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims 1
- 230000009471 action Effects 0.000 description 22
- 238000004146 energy storage Methods 0.000 description 12
- 238000004904 shortening Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008439 repair process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M25/00—Actuators for gearing speed-change mechanisms specially adapted for cycles
- B62M25/02—Actuators for gearing speed-change mechanisms specially adapted for cycles with mechanical transmitting systems, e.g. cables, levers
- B62M25/06—Actuators for gearing speed-change mechanisms specially adapted for cycles with mechanical transmitting systems, e.g. cables, levers foot actuated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
- B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Transmissions By Endless Flexible Members (AREA)
- Transmission Devices (AREA)
- Friction Gearing (AREA)
Abstract
The invention belongs to speed change gear fields, more particularly to a kind of inexpensive Environmental sanitation tricycle speed change gear, it includes first gear, second gear, rack gear, the second axle sleeve, fanning strip, the second axis hole, the first speed change pin, the second speed change pin, third speed change pin, pulley, fixed block, wirerope and driven wheel etc., wherein the second axle sleeve is mounted in support shaft by the bearing fit of its inner headed face and support shaft periphery；First gear is nested on the periphery of the second axle sleeve by its inner headed face and connection fixed thereto；This speed change gear does not need the processing of excessive precision；Relative cost is low, high reliablity；Speed change gear highest in the present invention, which can be realized, is three times in first grade of speed, and whole device occupied space is smaller, provides suitable space for subsequent upgrading；In addition, whole device relies on wire rope gearing, wirerope is of relatively low cost, and is repaired and be easy, and replacement is convenient；The configuration of the present invention is simple has preferable using effect.
Description
Technical field
The invention belongs to speed change gear field more particularly to a kind of inexpensive Environmental sanitation tricycle speed change gears.
Background technique
Environmental sanitation tricycle traditional at present does not have gear, is only driven with certain speed ratio, for Environmental sanitation tricycle
For user, it may be possible to which different crowd, the old and the weak crowd are either young and vigorous；If so having for different crowd's tricycles
If having different speed ratios, different crowd will be more in line with the physical fitness requirement using crowd when using tricycle, and in order to save
Cost-saving, the speed ratio of tricycle determines after being determined using crowd, without carrying out transmission ratio variation in ride.It is right
In bicycle gearshift, current two wheel bicycles speed change gear is the gear by changing chain and different forward and backward sizes
The cooperation of disk changes speed speed；The size of preceding fluted disc and the size of rear tooth disk determine power when bicycle turn pedal
Degree；Preceding fluted disc is bigger, and rear tooth disk is got over hour, and when pedal more feels laborious；Preceding fluted disc is smaller, and when rear tooth disk is bigger, when pedal is got over
It feels relief；In order to achieve the purpose that adjust optimum speed, many nipper wheel discs and backgear is needed to carry out combination of two, from
And occupy excessive space；Traditional speed change gear structure is more complex, relies primarily on chain drive；Chain structure is relatively multiple
Miscellaneous, production cost is higher, and the difficulty of maintenance and replacement is relatively high；In use for some time, variable-speed conversion device is likely to
Failure, and then ideal speed changing effect is not achieved.It is obviously improper that the gear of cart, which is used in Environmental sanitation tricycle,
's.So designing necessary when a kind of speed change gear suitable for Environmental sanitation tricycle.
The present invention design a kind of inexpensive Environmental sanitation tricycle speed change gear solve the problems, such as it is as above.
Summary of the invention
To solve drawbacks described above in the prior art, the present invention discloses a kind of inexpensive Environmental sanitation tricycle speed change gear, it
It adopts the following technical solutions to realize.
A kind of low cost Environmental sanitation tricycle speed change gear, it is characterised in that: it include hind axle, crank shaft, U-shaped crossbeam,
Joining rod, support shaft, the second axle sleeve, fanning strip, the second axis hole, the first speed change pin, the second speed change pin, third speed change pin, pulley,
Fixed block, wirerope, driven wheel, first shaft hole, movable circular groove, one-way clutch, scroll spring, the first axle sleeve, supporting block, gear
Block, reset spring, first gear, rack gear, locating piece, sliding slot, second gear, third axis hole, teeth, wherein the second axle sleeve passes through
The bearing fit of its inner headed face and support shaft periphery is mounted in support shaft；First gear is nested in second by its inner headed face
On the periphery of axle sleeve and connection fixed thereto；The radian of fanning strip is 90 degree；Close to the position of arc core on the end face of fanning strip
It is provided with the second axis hole；Fanning strip is nested on the periphery of the second axle sleeve by the second axis hole and connection fixed thereto；First becomes
Speed pin, the second speed change pin and third speed change pin are mounted on the end face of fanning strip；The center of first speed change pin and the second axis hole
Line distance of the line distance at center less than the center of the second speed change pin and the center of the second axis hole；The center of second speed change pin
It is less than the line distance at the center of third speed change pin and the center of the second axis hole with the line distance at the center of the second axis hole；First
The line at the center of the center of speed change pin and the second axis hole with the line at the center of the second speed change pin and the center of the second axis hole it
Between there are certain angles；Center and second of the line at the center at the center and the second axis hole of the second speed change pin with third speed change pin
There are certain angles between the line at the center of axis hole；
Supporting block is mounted on the upper surface of the U-shaped crossbeam of tricycle by one end；Five pulleys each by pin from upper and
Under be sequentially arranged in supporting block on the side of fanning strip, and the spacing between five pulleys is equal；Number from bottom to top
One pulley and second pulley are matched with the first speed change pin, and second pulley and third pulley and the second speed change pin match
It closes, third pulley and the 4th pulley are matched with third speed change pin；Fixed block is mounted in supporting block close to fanning strip
Side, and fixed block is located at the lower section of nethermost pulley；Third axis hole is provided at the end face center of second gear；Second gear
Periphery on be provided with the teeth of certain radian；Second gear is mounted on three-wheel by the bearing fit of third axis hole and crank shaft
Between the U-shaped crossbeam of vehicle；The upper surface of locating piece is provided with sliding slot；Locating piece is mounted on the lower end of U-shaped crossbeam by end face thereon
On face；Rack gear is embedded in sliding slot by being slidably matched；Rack gear one end is meshed with first gear, and the other end and second gear match
It closes；
One-way clutch is mounted on hind axle by being fixedly connected between its inner headed face and hind axle periphery；It is driven
Movable circular groove is provided at one end face center of wheel；First shaft hole, and first shaft hole are provided at another end face center of driven wheel
It is communicated with movable circular groove；Driven wheel is nested on the periphery of one-way clutch by first shaft hole；First axle sleeve passes through in it
The bearing fit of disc and hind axle periphery is mounted on hind axle, and one end of the first axle sleeve is located at the activity circle of driven wheel
In slot；One end of first axle sleeve stretching activity circular groove is fixedly connected by joining rod with the U-shaped crossbeam of tricycle；Scroll spring twines
It is wound on the periphery of the first axle sleeve and is located in the movable circular groove of driven wheel；The both ends of scroll spring are respectively at movable circular groove
The connection of the periphery of inner headed face and the first axle sleeve；Wirerope one end is fixedly connected with upper end of fixing block face, and the other end is around most upper
The pulley in face is wrapped on the periphery of driven wheel；Wirerope is matched with five pulleys.
As the further improvement of this technology, above-mentioned original state, the first speed change pin is in contact with steel wire.
As the further improvement of this technology, above-mentioned reset spring is compressed spring.
As the further improvement of this technology, the teeth on above-mentioned second gear periphery are 30 degree or 60 degree or 90 degree.
As the further improvement of this technology, the reference diameter of above-mentioned first gear and the reference diameter of second gear
It is equal.
The reference diameter of first gear and the equal purpose of design of the reference diameter of second gear are in the present invention
It is equal that two gears rotate angle first gear rotation angle；When the teeth on the periphery of second gear are 30 degree, the second tooth
Wheel rotates 30 degree by rack drives first gear；When the teeth on the periphery of second gear are 60 degree, second gear is logical
It crosses rack drives first gear and rotates 60 degree；When the teeth on the periphery of second gear are 90 degree, second gear passes through tooth
Item drives first gear to be rotated by 90 °.
First speed change pin in the present invention, the second speed change pin, third speed change pin, pulley and wirerope purpose of design be, when
When teeth radian in second gear is 30 degree, pedal is ridden, pedal drives crank shaft rotation；Crank shaft by second gear,
Rack gear, first gear, the second axle sleeve and fanning strip drive the first speed change pin, the second speed change pin and third speed change pin in support shaft
Heart string pendulum is dynamic, while reset spring is compressed；First speed change pin oppress wirerope and pass through from bottom to top first pulley of number and
Between second pulley；Wirerope is oppressed and pulled to first speed change pin, so that wirerope pulls driven wheel rotation；Driven wheel passes through
One-way clutch drives hind axle rotation；Relative rotation occurs for driven wheel and the first axle sleeve so that scroll spring deformation occurs simultaneously
Energy storage；Hind axle drives the rotation of three-wheel back wheels of vehicle, so that tricycle travels forward；In the process, the length that wirerope is elongated
Degree is equal to two times of the first speed change pin amplitude of fluctuation, i.e. wirerope pulls the arc length of driven wheel rotation for the first speed change pin pendulum
Two times of dynamic amplitude；When pedal drives second gear to rotate to 30 degree, the angle of first gear rotation is 30 degree；Continue to revolve
Turn, second gear is not being engaged with rack gear, is not being interacted between second gear and rack gear；Pedal passes through crank shaft band
Dynamic second gear continues to rotate；Under the action of reset spring restoring force, rack gear passes through first gear, the second axle sleeve and fanning strip
Drive the first speed change pin, the second speed change pin and third speed change pin backswing；The restoring force of scroll spring turns round driven wheel；It is driven
Wheel drives wirerope revolution；Wirerope is again wrapped around on the periphery of driven wheel；Wirerope shortening is simultaneously gradually exceptionally straight；When second
Gear is rotated by 360 ° when returning to initial position, and reset spring drives first by rack gear, first gear, the second axle sleeve, fanning strip
Speed change pin, the second speed change pin and third speed change pin return to initial position；Tricycle moves forward under the action of inertia；After
Continuous to trample pedal, second gear continuation is rotated since initial position, and second gear persistently rotates under the action of pedal, and second
The teeth of gear are circularly had an effect with rack gear；Wirerope circularly pulls driven wheel, so that three-wheel back wheels of vehicle
Do not stop to rotate, tricycle persistently travels forward；When tricycle needs faster travel speed, it would be desirable to replace the second tooth
It takes turns, teeth radian is 60 degree on second gear periphery, rides pedal, and pedal drives crank shaft rotation；Crank shaft passes through second
Gear, rack gear, first gear, the second axle sleeve and fanning strip drive the first speed change pin, the second speed change pin and third speed change pin around branch
Shaft centre line is supportted to swing；First speed change pin oppress wirerope and pass through first pulley of number from bottom to top and second pulley it
Between；Wirerope is oppressed and pulled to first speed change pin, so that wirerope drives three-wheel by driven wheel, one-way clutch and hind axle
Back wheels of vehicle rotation；So that tricycle travels forward；At the same time, relative rotation occurs for driven wheel and the first axle sleeve, so that scrollwork
Deformation occurs and energy storage for spring；Before second gear is rotated to 30 degree, the length that wirerope is elongated is equal to the first speed change
Two times for selling amplitude of fluctuation, i.e. wirerope pull the arc length of driven wheel rotation for two times of the first speed change pin amplitude of fluctuation；
When second gear drives fanning strip to swing to 30 by rack gear, first gear, the second axle sleeve, the second speed change pin starts and steel wire
Rope contacts and starts to oppress wirerope；Second gear continues to rotate, and the second speed change pin is oppressed wirerope and passed through and counts from bottom to top
Between second pulley and third pulley；First speed change pin and the second speed change pin oppress wirerope together and wirerope are drawn
Dynamic driven wheel rotation；At this point, the arc length that wirerope pulls driven wheel to rotate is four times of fanning strip amplitude of fluctuation, driven wheel
Pass through twice that the speed that one-way clutch and hind axle drive rear-wheel to rotate is before shift；When pedal drives the by crank shaft
When two gears rotate 60 degree, second gear is reached most by the amplitude that rack gear, first gear, the second axle sleeve drive fanning strip to swing
Greatly, the angle that fanning strip is swung is 60 degree；Pedal by crank shaft drive second gear continue to rotate, second gear no longer with tooth
Item engagement, does not have an effect between second gear and rack gear；Reset spring passes through rack gear, first gear, the second axle sleeve and sector
Strip moves the first speed change pin, the second speed change pin and third speed change pin backswing；The restoring force of scroll spring turns round driven wheel；From
Driving wheel drives wirerope revolution；Wirerope is again wrapped around on the periphery of driven wheel；Wirerope shortening is simultaneously gradually exceptionally straight；When
When two gears rotate to 360 degree and return to initial position, reset spring is driven by rack gear, first gear, the second axle sleeve, fanning strip
First speed change pin, the second speed change pin and third speed change pin return to initial position；Tricycle continues to transport forward under the action of inertia
It is dynamic；Continue to trample pedal, second gear continuation is rotated since initial position, and first gear is persistently revolved under the action of pedal
Turn, wirerope circularly pulls driven wheel, so that three-wheel back wheels of vehicle does not stop to rotate, tricycle is with the speed before twice shift
Degree persistently travels forward；When tricycle needs most fast travel speed, it would be desirable to replace second that teeth radian is 90 degree
Gear, rides pedal, and pedal drives crank shaft rotation；Crank shaft by second gear, rack gear, first gear, the second axle sleeve and
Fanning strip drives the first speed change pin, the second speed change pin and third speed change pin to swing around support shaft centre line；The compressing of first speed change pin
Wirerope and across from bottom to top first pulley of number and second pulley；Wirerope is oppressed and pulled to first speed change pin,
So that wirerope drives the rotation of three-wheel back wheels of vehicle by driven wheel, one-way clutch and hind axle；So that tricycle travels forward；
At the same time, relative rotation occurs for driven wheel and the first axle sleeve, so that deformation occurs and energy storage for scroll spring；It is revolved in second gear
It goes to before 30 degree, the length that wirerope is elongated is equal to two times of the first speed change pin amplitude of fluctuation, i.e. wirerope pulls driven
The arc length of wheel rotation is two times of the first speed change pin amplitude of fluctuation；When second gear rotates to 30, the second speed change pin is opened
Beginning contacts with wirerope and starts to oppress wirerope；Second gear continues to rotate, and the second speed change pin is oppressed wirerope and passed through certainly
Between lower and upper second pulley of number and third pulley；First speed change pin and the second speed change pin are oppressed wirerope together and are made
Wirerope pulls driven wheel rotation；At this point, it is the four of fanning strip amplitude of fluctuation that wirerope, which pulls the arc length of driven wheel rotation,
Times, driven wheel passes through twice that the speed that one-way clutch and hind axle drive rear-wheel to rotate is before shift；When second gear is revolved
When going to 60 degree, third speed change pin starts that compressing wirerope is contacted and started with wirerope；Second gear continues to rotate, and third becomes
Speed pin compressing wirerope simultaneously counts third pulley and the 4th pulley across from bottom to top；When pedal is driven by crank shaft
When second gear rotates to 90 degree, second gear is reached by the amplitude that rack gear, first gear, the second axle sleeve drive fanning strip to swing
To maximum, the angle that fanning strip is swung is 90 degree；Pedal drives second gear to continue around the rotation of pedal shaft centre line by crank shaft
Turn；Second gear is no longer engaged with rack gear, and second gear is not had an effect with rack gear；Reset spring by rack gear, first gear,
Second axle sleeve and fanning strip drive the first speed change pin, the second speed change pin and third speed change pin backswing；The restoring force of scroll spring makes
Obtain driven wheel revolution；Driven wheel drives wirerope revolution；Wirerope is again wrapped around on the periphery of driven wheel；Wirerope shortens
And it is gradually exceptionally straight；When second gear, which is rotated by 360 °, returns to initial position, reset spring passes through rack gear, first gear, the second axis
Set, fanning strip drive the first speed change pin, the second speed change pin and third speed change pin to return to initial position；Effect of the tricycle in inertia
Under move forward；Continuing to trample pedal, second gear continuation is rotated since initial position, and second gear persistently rotates,
Wirerope circularly pulls driven wheel, so that three-wheel back wheels of vehicle does not stop to rotate, tricycle is to be three times in first grade of speed
Persistently travel forward.
When tricycle is with first grade of advance, the teeth radian in second gear is 30 degree, rides pedal, and pedal drives foot
Pedal axis rotation；Crank shaft drives the first speed change pin, second by second gear, rack gear, first gear, the second axle sleeve and fanning strip
Speed change pin and third speed change pin are swung around support shaft centre line, while reset spring is compressed；First speed change pin oppresses wirerope
And across from bottom to top first pulley of number and second pulley；Wirerope is oppressed and pulled to first speed change pin, so that steel
Cord pulls driven wheel rotation；Driven wheel drives hind axle rotation by one-way clutch；With the first axle sleeve phase occurs for driven wheel
To rotation, so that deformation occurs and energy storage for scroll spring；Hind axle drives the rotation of three-wheel back wheels of vehicle, so that tricycle is transported forward
It is dynamic；In the process, the length that wirerope is elongated is equal to two times of the first speed change pin amplitude of fluctuation, i.e. wirerope pulls driven
The arc length of wheel rotation is two times of the first speed change pin amplitude of fluctuation；When pedal drives second gear to rotate to 30 degree, the
The angle of one gear rotation is 30 degree；Continue to rotate, second gear is not being engaged with rack gear, is not existed between second gear and rack gear
It interacts；Pedal drives second gear to continue to rotate by crank shaft；Under the action of reset spring restoring force, rack gear
The first speed change pin, the second speed change pin and third speed change pin backswing are driven by first gear, the second axle sleeve and fanning strip；Scrollwork bullet
The restoring force of spring turns round driven wheel；Driven wheel drives wirerope revolution；Wirerope is again wrapped around the periphery of driven wheel
On；Wirerope shortening is simultaneously gradually exceptionally straight；When second gear, which is rotated by 360 °, returns to initial position, reset spring passes through rack gear, the
One gear, the second axle sleeve, fanning strip drive the first speed change pin, the second speed change pin and third speed change pin to return to initial position；Three-wheel
Vehicle moves forward under the action of inertia；Continuing to trample pedal, second gear continuation is rotated since initial position, and second
Gear persistently rotates under the action of pedal, and the teeth of second gear are circularly had an effect with rack gear；Wirerope circulation
Driven wheel is reciprocally pulled, so that three-wheel back wheels of vehicle does not stop to rotate, tricycle persistently travels forward.
When tricycle needs faster travel speed, it would be desirable to replace second gear, tooth on second gear periphery
Tooth radian is 60 degree, rides pedal, and pedal drives crank shaft rotation；Crank shaft passes through second gear, rack gear, first gear, the
Two axle sleeves and fanning strip drive the first speed change pin, the second speed change pin and third speed change pin to swing around support shaft centre line；First becomes
Speed pin compressing wirerope and across from bottom to top first pulley of number and second pulley；First speed change pin is oppressed and is pulled
Wirerope, so that wirerope drives the rotation of three-wheel back wheels of vehicle by driven wheel, one-way clutch and hind axle；So that tricycle to
Preceding movement；At the same time, relative rotation occurs for driven wheel and the first axle sleeve, so that deformation occurs and energy storage for scroll spring；?
Two gears are rotated to before 30 degree, and the length that wirerope is elongated is equal to two times of the first speed change pin amplitude of fluctuation, i.e. steel wire
Rope pulls the arc length of driven wheel rotation for two times of the first speed change pin amplitude of fluctuation；When second gear passes through rack gear, first
When gear, the second axle sleeve drive fanning strip to swing to 30, the second speed change pin starts that compressing wirerope is contacted and started with wirerope；
Second gear continues to rotate, the second speed change pin oppress wirerope and pass through from bottom to top second pulley of number and third pulley it
Between；First speed change pin and the second speed change pin oppress wirerope together and wirerope are made to pull driven wheel rotation；At this point, wirerope
Pulling the arc length of driven wheel rotation is four times of fanning strip amplitude of fluctuation, and driven wheel passes through one-way clutch and hind axle band
The speed of dynamic rear-wheel rotation is twice before shift；When pedal drives second gear to rotate 60 degree by crank shaft, the second tooth
Wheel reaches maximum by the amplitude that rack gear, first gear, the second axle sleeve drive fanning strip to swing, and the angle that fanning strip is swung is 60
Degree；Pedal drives second gear to continue to rotate by crank shaft, and second gear is no longer engaged with rack, second gear and rack gear it
Between do not have an effect；Reset spring drives the first speed change pin, second to become by rack gear, first gear, the second axle sleeve and fanning strip
Speed pin and the pin backswing of third speed change；The restoring force of scroll spring turns round driven wheel；Driven wheel drives wirerope revolution；Steel wire
Rope is again wrapped around on the periphery of driven wheel；Wirerope shortening is simultaneously gradually exceptionally straight；It is returned to just when second gear rotates to 360 degree
When beginning position, reset spring by rack gear, first gear, the second axle sleeve, fanning strip drive the first speed change pin, the second speed change pin and
Third speed change pin returns to initial position；Tricycle moves forward under the action of inertia；Continue to trample pedal, second gear
Continuation rotated since initial position, first gear persistently rotates under the action of pedal, wirerope circularly pull from
Driving wheel, so that three-wheel back wheels of vehicle does not stop to rotate, tricycle is persistently travelled forward with the speed before twice shift.
When tricycle needs most fast travel speed, it would be desirable to replace the second gear that teeth radian is 90 degree, foot
Tap pedal, pedal drive crank shaft rotation；Crank shaft passes through second gear, rack gear, first gear, the second axle sleeve and fanning strip band
Dynamic first speed change pin, the second speed change pin and third speed change pin are swung around support shaft centre line；First speed change pin oppresses wirerope simultaneously
Across from bottom to top first pulley of number and second pulley；Wirerope is oppressed and pulled to first speed change pin, so that steel wire
Rope drives the rotation of three-wheel back wheels of vehicle by driven wheel, one-way clutch and hind axle；So that tricycle travels forward；It is same with this
When, relative rotation occurs for driven wheel and the first axle sleeve, so that deformation occurs and energy storage for scroll spring；30 are rotated in second gear
Before degree, the length that wirerope is elongated is equal to two times of the first speed change pin amplitude of fluctuation, i.e. wirerope pulls driven wheel rotation
Arc length be two times of the first speed change pin amplitude of fluctuation；When second gear rotates to 30, the second speed change pin starts and steel
Cord contacts and starts to oppress wirerope；Second gear continues to rotate, and the second speed change pin is oppressed wirerope and passed through from bottom to top
Between second pulley of number and third pulley；First speed change pin and the second speed change pin oppress wirerope together and make wirerope
Pull driven wheel rotation；At this point, it is four times of fanning strip amplitude of fluctuation that wirerope, which pulls the arc length of driven wheel rotation, it is driven
Wheel passes through twice that the speed that one-way clutch and hind axle drive rear-wheel to rotate is before shift；When second gear rotates to 60 degree
When, third speed change pin starts that compressing wirerope is contacted and started with wirerope；Second gear continues to rotate, the compressing of third speed change pin
Wirerope simultaneously counts third pulley and the 4th pulley across from bottom to top；When pedal drives second gear by crank shaft
When rotating to 90 degree, second gear reaches maximum by the amplitude that rack gear, first gear, the second axle sleeve drive fanning strip to swing,
The angle that fanning strip is swung is 90 degree；Pedal drives second gear to continue around the rotation of pedal shaft centre line by crank shaft；Second
Wheel and rack no longer engages, and second gear is not had an effect with rack gear；Reset spring passes through rack gear, first gear, the second axis
Set and fanning strip drive the first speed change pin, the second speed change pin and third speed change pin backswing；The restoring force of scroll spring makes driven
Wheel revolution；Driven wheel drives wirerope revolution；Wirerope is again wrapped around on the periphery of driven wheel；Wirerope shorten and gradually
It is exceptionally straight；When second gear, which is rotated by 360 °, returns to initial position, reset spring passes through rack gear, first gear, the second axle sleeve, fan
Shape strip moves the first speed change pin, the second speed change pin and third speed change pin and returns to initial position；Tricycle under the action of inertia after
It is continuous to travel forward；Continue to trample pedal, second gear continuation is rotated since initial position, and second gear persistently rotates, steel wire
Rope circularly pulls driven wheel, so that three-wheel back wheels of vehicle does not stop to rotate, tricycle is continued with the speed for being three times in first grade
It travels forward.
Relative to traditional speed change gear, speed change gear does not need the processing of excessive precision in the present invention；Relative cost is low,
High reliablity；Speed change gear highest in the present invention, which can be realized, is three times in first grade of speed, and whole device occupied space
It is smaller, suitable space is provided for subsequent upgrading；In addition, whole device relies on wire rope gearing, the phase of wirerope
It to cost is relatively low, and repairs and is easy, replacement is convenient；The configuration of the present invention is simple has preferable using effect.
Detailed description of the invention
Fig. 1 is tricycle integral perspective schematic diagram.
Fig. 2 is that speed change gear and tricycle cooperate partial schematic diagram.
Fig. 3 is that speed change gear and tricycle cooperate diagrammatic cross-section.
Fig. 4 is speed change gear schematic view of the mounting position.
Fig. 5 is speed change gear installation site diagrammatic cross-section.
Fig. 6 is second gear schematic diagram.
Fig. 7 is locating piece schematic diagram.
Fig. 8 is fanning strip, support shaft, the second axle sleeve, first gear, rack gear cooperation diagrammatic cross-section.
Fig. 9 is fanning strip, the first speed change pin, the second speed change pin and third speed change pin cooperation schematic diagram.
Figure 10 is supporting block, fixed block and pulley cooperation schematic diagram.
Figure 11 is hind axle, the first axle sleeve, scroll spring, one-way clutch and driven wheel cooperation diagrammatic cross-section.
Figure 12 is driven wheel schematic diagram.
Figure 13 is speed change gear rough schematic view.
Figure label title: 1, hind axle；2, crank shaft；3, U-shaped crossbeam；4, joining rod；5, support shaft；6, the second axis
Set；7, fanning strip；8, the second axis hole；9, the first speed change pin；10, pulley；11, fixed block；12, wirerope；13, driven wheel；14,
First shaft hole；15, movable circular groove；16, one-way clutch；17, scroll spring；18, the first axle sleeve；19, supporting block；20, block；
21, reset spring；22, first gear；23, rack gear；24, locating piece；25, sliding slot；26, second gear；27, third axis hole；28,
Teeth；29, the second speed change pin；30, third speed change pin.
Specific embodiment
As shown in figures 1,4 and 5, it includes hind axle 1, crank shaft 2, U-shaped crossbeam 3, joining rod 4, support shaft 5, the second axle sleeve
6, fanning strip 7, the second axis hole 8, the first speed change pin 9, the second speed change pin 29, third speed change pin 30, pulley 10, fixed block 11, steel
Cord 12, driven wheel 13, first shaft hole 14, movable circular groove 15, one-way clutch 16, scroll spring 17, the first axle sleeve 18, support
Block 19, block 20, reset spring 21, first gear 22, rack gear 23, locating piece 24, sliding slot 25, second gear 26, third axis hole
27, teeth 28, wherein as shown in figure 8, the second axle sleeve 6 is mounted on by the bearing fit of its inner headed face and 5 periphery of support shaft
In support shaft 5；First gear 22 is nested on the periphery of the second axle sleeve 6 by its inner headed face and connection fixed thereto；Such as Fig. 9
Shown, the radian of fanning strip 7 is 90 degree；Position on the end face of fanning strip 7 close to arc core is provided with the second axis hole 8；Such as Fig. 5,8 institutes
Show, fanning strip 7 is nested on the periphery of the second axle sleeve 6 by the second axis hole 8 and connection fixed thereto；As shown in figure 9, first
Speed change pin 9, the second speed change pin 29 and third speed change pin 30 are mounted on the end face of fanning strip 7；The center of first speed change pin 9 and the
Line distance of the line distance at the center of two axis holes 8 less than the center of the second speed change pin 29 and the center of the second axis hole 8；Second
The line at the center of speed change pin 29 and the center of the second axis hole 8 distance is less than center and the second axis hole 8 of third speed change pin 30
The line distance at center；The line at the center of the center of the first speed change pin 9 and the second axis hole 8 with the second speed change pin 29 center with
There are certain angles between the line at the center of the second axis hole 8；The company at the center of the second speed change pin 29 and the center of the second axis hole 8
Line is the same as there are certain angles between the center of third speed change pin 30 and the line at the center of the second axis hole 8；
As shown in Figure 2,4, supporting block 19 is mounted on the upper surface of the U-shaped crossbeam 3 of tricycle by one end；Such as Figure 10 institute
Show, five pulleys 10 are sequentially arranged at from top to bottom in supporting block 19 on the side of fanning strip 7 each by pin, and five
Spacing between pulley 10 is equal；As shown in Fig. 3,5, first pulley 10 of number and second pulley 10 and first become from bottom to top
Fast pin 9 matches, and second pulley 10 and third pulley 10 are matched with the second speed change pin 29, third pulley 10 and the 4th
A pulley 10 is matched with third speed change pin 30；As shown in Figure 10, fixed block 11 is mounted in supporting block 19 close to fanning strip 7
Side, and fixed block 11 is located at the lower section of nethermost pulley 10；As shown in fig. 6, being provided at the end face center of second gear 26
Third axis hole 27；The teeth 28 of certain radian are provided on the periphery of second gear 26；As shown in Figure 4,5, second gear 26 is logical
The bearing fit for crossing third axis hole 27 and crank shaft 2 is mounted between the U-shaped crossbeam 3 of tricycle；As shown in fig. 7, locating piece 24
Upper surface be provided with sliding slot 25；As shown in Fig. 2,8, locating piece 24 is mounted on the lower end surface of U-shaped crossbeam 3 by end face thereon；
As shown in figure 3, rack gear 23 is embedded in sliding slot 25 by being slidably matched；23 one end of rack gear is meshed with first gear 22, the other end
It is matched with second gear 26；
As shown in Fig. 5,11, one-way clutch 16 is by being fixedly connected with peace between its inner headed face and 1 periphery of hind axle
On hind axle 1；As shown in figure 12, movable circular groove 15 is provided at an end face center of driven wheel 13；Driven wheel 13 is another
First shaft hole 14 is provided at a end face center, and first shaft hole 14 is communicated with movable circular groove 15；As shown in Fig. 5,11, driven wheel 13
It is nested in by first shaft hole 14 on the periphery of one-way clutch 16；As shown in Figure 4 and 11, the first axle sleeve 18 passes through its inner circle
The bearing fit of face and 1 periphery of hind axle is mounted on hind axle 1, and one end of the first axle sleeve 18 is located at the work of driven wheel 13
In dynamic circular groove 15；One end of first axle sleeve, 18 stretching activity circular groove 15 connects by the way that the U-shaped crossbeam 3 of joining rod 4 and tricycle is fixed
It connects；Scroll spring 17 is wrapped on the periphery of the first axle sleeve 18 and is located in the movable circular groove 15 of driven wheel 13；Scroll spring
Periphery connection of 17 both ends respectively at the inner headed face and the first axle sleeve 18 of movable circular groove 15；12 one end of wirerope and fixed block
11 upper surfaces are fixedly connected, and the other end is wrapped on the periphery of driven wheel 13 around uppermost pulley 10；Such as Fig. 4,5 institutes
Show, wirerope 12 is matched with five pulleys 10.
As shown in Fig. 5,13, above-mentioned original state, the first speed change pin 9 is in contact with steel wire.
As shown in figure 5, above-mentioned reset spring 21 is compressed spring.
As shown in fig. 6, the teeth 28 on above-mentioned 26 periphery of second gear are 30 degree or 60 degree or 90 degree.
As shown in Figure 3,4, the reference diameter of above-mentioned first gear 22 is equal with the reference diameter of second gear 26.
The reference diameter of first gear 22 purpose of design equal with the reference diameter of second gear 26 in the present invention
It is that it is equal that second gear 26 rotates the rotation of angle first gear 22 angle；When the teeth 28 on the periphery of second gear 26 are
At 30 degree, second gear 26 drives first gear 22 to rotate 30 degree by rack gear 23；Tooth on the periphery of second gear 26
When tooth 28 is 60 degree, second gear 26 drives first gear 22 to rotate 60 degree by rack gear 23；When the periphery of second gear 26
On teeth 28 be 90 degree when, second gear 26 by rack gear 23 drive first gear 22 be rotated by 90 °.
The design of first speed change pin 9, the second speed change pin 29, third speed change pin 30, pulley 10 and wirerope 12 in the present invention
Purpose is, when 28 radian of teeth in second gear 26 is 30 degree, rides pedal, pedal drives crank shaft 2 to rotate；Crank shaft
2 drive the first speed change pin 9, the second speed change by second gear 26, rack gear 23, first gear 22, the second axle sleeve 6 and fanning strip 7
Pin 29 and third speed change pin 30 are swung around 5 center line of support shaft, while reset spring 21 is compressed；First speed change pin 9 oppresses steel
Cord 12 and across from bottom to top first pulley 10 of number and second pulley 10；First speed change pin 9 oppresses and pulls steel
Cord 12, so that wirerope 12 pulls driven wheel 13 to rotate；Driven wheel 13 drives hind axle 1 to rotate by one-way clutch 16；
Relative rotation occurs for driven wheel 13 and the first axle sleeve 18, so that deformation occurs and energy storage for scroll spring 17；Hind axle 1 drives three-wheel
Back wheels of vehicle rotation, so that tricycle travels forward；In the process, the length that wirerope 12 is elongated is equal to the first speed change pin 9
The arc length that two times of amplitude of fluctuation, i.e. wirerope 12 pull driven wheel 13 to rotate is the two of 9 amplitude of fluctuation of the first speed change pin
Times；When pedal drives second gear 26 to rotate to 30 degree, the angle that first gear 22 rotates is 30 degree；Continue to rotate, second
Gear 26 is not being engaged with rack gear 23, is not being interacted between second gear 26 and rack gear 23；Pedal passes through crank shaft 2
Second gear 26 is driven to continue to rotate；Under the action of 21 restoring force of reset spring, rack gear 23 passes through first gear 22, the second axis
Set 6 and fanning strip 7 drive the first speed change pin 9,30 backswing of the second speed change pin 29 and third speed change pin；The restoring force of scroll spring 17
So that driven wheel 13 turns round；Driven wheel 13 drives wirerope 12 to turn round；Wirerope 12 is again wrapped around the periphery of driven wheel 13
On；The shortening of wirerope 12 is simultaneously gradually exceptionally straight；When second gear 26, which is rotated by 360 °, returns to initial position, reset spring 21 passes through
Rack gear 23, first gear 22, the second axle sleeve 6, fanning strip 7 drive the first speed change pin 9, the second speed change pin 29 and third speed change pin 30
Return to initial position；Tricycle moves forward under the action of inertia；Continue to trample pedal, second gear 26 continues from first
Beginning position starts to rotate, and second gear 26 persistently rotates under the action of pedal, and the teeth 28 of second gear 26 are circularly
It has an effect with rack gear 23；Wirerope 12 circularly pulls driven wheel 13, so that three-wheel back wheels of vehicle does not stop to rotate, tricycle
Persistently travel forward；When tricycle needs faster travel speed, it would be desirable to second gear 26 is replaced, outside second gear 26
28 radian of teeth is 60 degree on disc, rides pedal, and pedal drives crank shaft 2 to rotate；Crank shaft 2 passes through second gear 26, tooth
Item 23, first gear 22, the second axle sleeve 6 and fanning strip 7 drive the first speed change pin 9, the second speed change pin 29 and third speed change pin 30
It is swung around 5 center line of support shaft；First speed change pin 9 oppresses wirerope 12 and passes through first pulley 10 of number and second from bottom to top
Between a pulley 10；Wirerope 12 is oppressed and pulled to first speed change pin 9, so that wirerope 12 passes through driven wheel 13, one-way clutch
Device 16 and hind axle 1 drive the rotation of three-wheel back wheels of vehicle；So that tricycle travels forward；At the same time, driven wheel 13 and first axle
Relative rotation occurs for set 18, so that deformation occurs and energy storage for scroll spring 17；Before second gear 26 is rotated to 30 degree, steel
The length that cord 12 is elongated is equal to two times of 9 amplitude of fluctuation of the first speed change pin, i.e. wirerope 12 pulls driven wheel 13 to rotate
Arc length is two times of 9 amplitude of fluctuation of the first speed change pin；When second gear 26 passes through rack gear 23, first gear 22, the second axis
When 6 drive fanning strip 7 of set swings to 30, the beginning of the second speed change pin 29 contacts with wirerope 12 and starts to oppress wirerope 12；The
Two gears 26 continue to rotate, and the second speed change pin 29 oppresses wirerope 12 and passes through second pulley 10 of number from bottom to top and third
Between pulley 10；First speed change pin 9 and the second speed change pin 29 oppress wirerope 12 together and wirerope 12 are made to pull driven wheel
13 rotations；At this point, the arc length that wirerope 12 pulls driven wheel 13 to rotate is four times of 7 amplitude of fluctuation of fanning strip, driven wheel
13 pass through twice that the speed that one-way clutch 16 and hind axle 1 drive rear-wheel to rotate is before shift；When pedal passes through crank shaft 2
When second gear 26 being driven to rotate 60 degree, second gear 26 drives fanning strip 7 by rack gear 23, first gear 22, the second axle sleeve 6
The amplitude of swing reaches maximum, and the angle that fanning strip 7 is swung is 60 degree；Pedal drives second gear 26 to continue by crank shaft 2
Rotation, second gear 26 are no longer engaged with rack gear 23, are not had an effect between second gear 26 and rack gear 23；Reset spring 21 is logical
It crosses rack gear 23, first gear 22, the second axle sleeve 6 and fanning strip 7 and drives the first speed change pin 9, the second speed change pin 29 and third speed change
30 backswing of pin；The restoring force of scroll spring 17 turns round driven wheel 13；Driven wheel 13 drives wirerope 12 to turn round；Wirerope 12
It is again wrapped around on the periphery of driven wheel 13；The shortening of wirerope 12 is simultaneously gradually exceptionally straight；It is returned when second gear 26 rotates to 360 degree
When to initial position, reset spring 21 drives the first speed change pin by rack gear 23, first gear 22, the second axle sleeve 6, fanning strip 7
9, the second speed change pin 29 and third speed change pin 30 return to initial position；Tricycle moves forward under the action of inertia；After
Continuous to trample pedal, the continuation of second gear 26 is rotated since initial position, and first gear 22 persistently rotates under the action of pedal,
Wirerope 12 circularly pulls driven wheel 13, so that three-wheel back wheels of vehicle does not stop to rotate, before tricycle is with twice shift
Speed persistently travels forward；When tricycle needs most fast travel speed, it would be desirable to which replacing 28 radian of teeth is 90 degree
Second gear 26, rides pedal, and pedal drives crank shaft 2 to rotate；Crank shaft 2 passes through second gear 26, rack gear 23, first gear
22, the second axle sleeve 6 and fanning strip 7 drive the first speed change pin 9, the second speed change pin 29 and third speed change pin 30 around 5 center of support shaft
String pendulum is dynamic；First speed change pin 9 oppresses wirerope 12 and across from bottom to top first pulley 10 of number and second pulley 10；
Wirerope 12 is oppressed and pulled to first speed change pin 9, so that wirerope 12 passes through driven wheel 13, one-way clutch 16 and hind axle 1
Drive the rotation of three-wheel back wheels of vehicle；So that tricycle travels forward；At the same time, with the first axle sleeve 18 opposite revolve occurs for driven wheel 13
Turn, so that deformation occurs and energy storage for scroll spring 17；Before second gear 26 rotates to 30 degree, length that wirerope 12 is elongated
Degree is equal to two times of 9 amplitude of fluctuation of the first speed change pin, i.e., the arc length that wirerope 12 pulls driven wheel 13 to rotate becomes for first
Two times of fast 9 amplitude of fluctuation of pin；When second gear 26 rotates to 30, the beginning of the second speed change pin 29 is contacted and is opened with wirerope 12
Begin compressing wirerope 12；Second gear 26 continues to rotate, and the second speed change pin 29 oppresses wirerope 12 and passes through number the from bottom to top
Between two pulleys 10 and third pulley 10；First speed change pin 9 and the second speed change pin 29 are oppressed wirerope 12 together and are made
Wirerope 12 pulls driven wheel 13 to rotate；At this point, the arc length that wirerope 12 pulls driven wheel 13 to rotate is the swing of fanning strip 7
Four times of amplitude, driven wheel 13 pass through twice that the speed that one-way clutch 16 and hind axle 1 drive rear-wheel to rotate is before shift；
When second gear 26 rotates to 60 degree, the beginning of third speed change pin 30 contacts with wirerope 12 and starts to oppress wirerope 12；The
Two gears 26 continue to rotate, and third speed change pin 30 is oppressed wirerope 12 and passed through counts third pulley 10 and the 4th from bottom to top
Between pulley 10；When pedal by crank shaft 2 drive second gear 26 rotate to 90 degree when, second gear 26 by rack gear 23,
The amplitude that first gear 22, the second axle sleeve 6 drive fanning strip 7 to swing reaches maximum, and the angle that fanning strip 7 is swung is 90 degree；Foot
It pedals and drives second gear 26 to continue around the rotation of 2 center line of crank shaft by crank shaft 2；Second gear 26 is no longer nibbled with rack gear 23
It closes, second gear 26 is not had an effect with rack gear 23；Reset spring 21 passes through rack gear 23, first gear 22, the second axle sleeve 6 and fan
Shape plate 7 drives the first speed change pin 9,30 backswing of the second speed change pin 29 and third speed change pin；The restoring force of scroll spring 17 make from
Driving wheel 13 turns round；Driven wheel 13 drives wirerope 12 to turn round；Wirerope 12 is again wrapped around on the periphery of driven wheel 13；Steel wire
12 shortening of rope is simultaneously gradually exceptionally straight；When second gear 26, which is rotated by 360 °, returns to initial position, reset spring 21 by rack gear 23,
First gear 22, the second axle sleeve 6, fanning strip 7 drive the first speed change pin 9, the second speed change pin 29 and third speed change pin 30 to return to just
Beginning position；Tricycle moves forward under the action of inertia；Continue to trample pedal, second gear 26 continues from initial position
Start to rotate, second gear 26 persistently rotates, and wirerope 12 circularly pulls driven wheel 13, so that three-wheel back wheels of vehicle does not stop
Rotation, tricycle are persistently travelled forward with the speed for being three times in first grade.
Specific embodiment: when tricycle is with first grade of advance, 28 radian of teeth in second gear 26 is 30 degree, foot
Tap pedal, pedal drive crank shaft 2 to rotate；Crank shaft 2 passes through second gear 26, rack gear 23, first gear 22, the second axle sleeve 6
The first speed change pin 9, the second speed change pin 29 and third speed change pin 30 is driven to swing around 5 center line of support shaft with fanning strip 7, it is multiple simultaneously
Position spring 21 is compressed；First speed change pin 9 oppresses wirerope 12 and passes through first pulley 10 of number and second cunning from bottom to top
Between wheel 10；Wirerope 12 is oppressed and pulled to first speed change pin 9, so that wirerope 12 pulls driven wheel 13 to rotate；Driven wheel 13
Hind axle 1 is driven to rotate by one-way clutch 16；Relative rotation occurs for driven wheel 13 and the first axle sleeve 18, so that scroll spring
17 deformation occurs and energy storage；Hind axle 1 drives the rotation of three-wheel back wheels of vehicle, so that tricycle travels forward；In the process, steel wire
The length that rope 12 is elongated is equal to two times of 9 amplitude of fluctuation of the first speed change pin, the i.e. arc of the pulling of wirerope 12 driven wheel 13 rotation
Line length is two times of 9 amplitude of fluctuation of the first speed change pin；When pedal drives second gear 26 to rotate to 30 degree, first gear 22
The angle of rotation is 30 degree；Continue to rotate, second gear 26 is not being engaged with rack gear 23, between second gear 26 and rack gear 23 not
It is interacting；Pedal drives second gear 26 to continue to rotate by crank shaft 2；In the effect of 21 restoring force of reset spring
Under, rack gear 23 drives the first speed change pin 9, the second speed change pin 29 and third by first gear 22, the second axle sleeve 6 and fanning strip 7
30 backswing of speed change pin；The restoring force of scroll spring 17 turns round driven wheel 13；Driven wheel 13 drives wirerope 12 to turn round；Steel wire
Rope 12 is again wrapped around on the periphery of driven wheel 13；The shortening of wirerope 12 is simultaneously gradually exceptionally straight；When second gear 26 is rotated by 360 °
When returning to initial position, reset spring 21 drives the first speed change by rack gear 23, first gear 22, the second axle sleeve 6, fanning strip 7
Pin 9, the second speed change pin 29 and third speed change pin 30 return to initial position；Tricycle moves forward under the action of inertia；
Continue to trample pedal, the continuation of second gear 26 is rotated since initial position, and second gear 26 is persistently revolved under the action of pedal
Turn, the teeth 28 of second gear 26 are circularly had an effect with rack gear 23；Wirerope 12 circularly pulls driven wheel
13, so that three-wheel back wheels of vehicle does not stop to rotate, tricycle persistently travels forward.
When tricycle needs faster travel speed, it would be desirable to replace second gear 26,26 periphery of second gear
Upper 28 radian of teeth is 60 degree, rides pedal, and pedal drives crank shaft 2 to rotate；Crank shaft 2 by second gear 26, rack gear 23,
First gear 22, the second axle sleeve 6 and fanning strip 7 drive the first speed change pin 9, the second speed change pin 29 and third speed change pin 30 around support
5 center line of axis is swung；First speed change pin 9 oppresses wirerope 12 and passes through first pulley 10 of number and second pulley from bottom to top
Between 10；Wirerope 12 is oppressed and pulled to first speed change pin 9, so that wirerope 12 passes through driven wheel 13,16 and of one-way clutch
Hind axle 1 drives the rotation of three-wheel back wheels of vehicle；So that tricycle travels forward；At the same time, driven wheel 13 and the first axle sleeve 18 are sent out
Raw relative rotation, so that deformation occurs and energy storage for scroll spring 17；Before second gear 26 is rotated to 30 degree, wirerope 12
The length being elongated is equal to two times of 9 amplitude of fluctuation of the first speed change pin, i.e. wirerope 12 pulls the camber line of the rotation of driven wheel 13 long
Degree is two times of 9 amplitude of fluctuation of the first speed change pin；When second gear 26 is driven by rack gear 23, first gear 22, the second axle sleeve 6
When fanning strip 7 swings to 30, the beginning of the second speed change pin 29 contacts with wirerope 12 and starts to oppress wirerope 12；Second gear 26
Continue to rotate, the second speed change pin 29 oppress wirerope 12 and pass through from bottom to top second pulley 10 of number and third pulley 10 it
Between；First speed change pin 9 and the second speed change pin 29 oppress wirerope 12 together and make wirerope 12 that driven wheel 13 be pulled to rotate；This
When, the arc length that wirerope 12 pulls driven wheel 13 to rotate is four times of 7 amplitude of fluctuation of fanning strip, and driven wheel 13 passes through unidirectional
The speed that clutch 16 and hind axle 1 drive rear-wheel to rotate is twice before shift；When pedal drives the second tooth by crank shaft 2
At 60 degree of 26 rotation of wheel, second gear 26 drives the amplitude of the swing of fanning strip 7 by rack gear 23, first gear 22, the second axle sleeve 6
Reach maximum, the angle that fanning strip 7 is swung is 60 degree；Pedal drives second gear 26 to continue to rotate by crank shaft 2, the second tooth
Wheel 26 is no longer engaged with rack gear 23, is not had an effect between second gear 26 and rack gear 23；Reset spring 21 passes through rack gear 23, the
One gear 22, the second axle sleeve 6 and fanning strip 7 drive the first speed change pin 9,30 backswing of the second speed change pin 29 and third speed change pin；Whirlpool
The restoring force of coil spring 17 turns round driven wheel 13；Driven wheel 13 drives wirerope 12 to turn round；Wirerope 12 is again wrapped around
On the periphery of driven wheel 13；The shortening of wirerope 12 is simultaneously gradually exceptionally straight；Initial position is returned to when second gear 26 rotates to 360 degree
When, reset spring 21 drives the first speed change pin 9, the second speed change by rack gear 23, first gear 22, the second axle sleeve 6, fanning strip 7
Pin 29 and third speed change pin 30 return to initial position；Tricycle moves forward under the action of inertia；Continue to trample pedal,
The continuation of second gear 26 is rotated since initial position, and first gear 22 persistently rotates under the action of pedal, and wirerope 12 follows
Ring reciprocally pulls driven wheel 13 so that three-wheel back wheels of vehicle does not stop to rotate, tricycle with the speed before twice shift continue to
Preceding movement.
When tricycle needs most fast travel speed, it would be desirable to replace the second gear that 28 radian of teeth is 90 degree
26, pedal is ridden, pedal drives crank shaft 2 to rotate；Crank shaft 2 passes through second gear 26, rack gear 23, first gear 22, second
Axle sleeve 6 and fanning strip 7 drive the first speed change pin 9, the second speed change pin 29 and third speed change pin 30 to swing around 5 center line of support shaft；
First speed change pin 9 oppresses wirerope 12 and across from bottom to top first pulley 10 of number and second pulley 10；First becomes
Wirerope 12 is oppressed and pulled to fast pin 9, so that wirerope 12 drives three by driven wheel 13, one-way clutch 16 and hind axle 1
Take turns back wheels of vehicle rotation；So that tricycle travels forward；At the same time, relative rotation occurs for driven wheel 13 and the first axle sleeve 18, makes
Obtaining scroll spring 17, deformation occurs and energy storage；Before second gear 26 rotates to 30 degree, length etc. that wirerope 12 is elongated
In two times of 9 amplitude of fluctuation of the first speed change pin, i.e., the arc length that wirerope 12 pulls driven wheel 13 to rotate is the first speed change pin 9
Two times of amplitude of fluctuation；When second gear 26 rotates to 30, the beginning of the second speed change pin 29 contacts with wirerope 12 and starts to press
Compel wirerope 12；Second gear 26 continues to rotate, and the second speed change pin 29 oppresses wirerope 12 and passes through number second from bottom to top
Between pulley 10 and third pulley 10；First speed change pin 9 and the second speed change pin 29 oppress wirerope 12 together and make steel wire
Rope 12 pulls driven wheel 13 to rotate；At this point, the arc length that wirerope 12 pulls driven wheel 13 to rotate is 7 amplitude of fluctuation of fanning strip
Four times, it be twice before shifting gears that driven wheel 13, which drives the speed of rear-wheel rotation by one-way clutch 16 and hind axle 1,；When
When two gears 26 rotate to 60 degree, the beginning of third speed change pin 30 contacts with wirerope 12 and starts to oppress wirerope 12；Second tooth
Wheel 26 continues to rotate, and third speed change pin 30 is oppressed wirerope 12 and passed through counts third pulley 10 and the 4th pulley from bottom to top
Between 10；When pedal drives second gear 26 to rotate to 90 degree by crank shaft 2, second gear 26 passes through rack gear 23, first
The amplitude that gear 22, the second axle sleeve 6 drive fanning strip 7 to swing reaches maximum, and the angle that fanning strip 7 is swung is 90 degree；Pedal is logical
Crossing crank shaft 2 drives second gear 26 to continue around the rotation of 2 center line of crank shaft；Second gear 26 is no longer engaged with rack gear 23, the
Two gears 26 are not had an effect with rack gear 23；Reset spring 21 passes through rack gear 23, first gear 22, the second axle sleeve 6 and fanning strip 7
Drive 30 backswing of the first speed change pin 9, the second speed change pin 29 and third speed change pin；The restoring force of scroll spring 17 makes driven wheel 13
Revolution；Driven wheel 13 drives wirerope 12 to turn round；Wirerope 12 is again wrapped around on the periphery of driven wheel 13；Wirerope 12 contracts
It is short and gradually exceptionally straight；When second gear 26, which is rotated by 360 °, returns to initial position, reset spring 21 passes through rack gear 23, the first tooth
The 22, second axle sleeve 6 of wheel, fanning strip 7 drive the first speed change pin 9, the second speed change pin 29 and third speed change pin 30 to return to initial position；
Tricycle moves forward under the action of inertia；Continue to trample pedal, the continuation of second gear 26 is revolved since initial position
Turning, second gear 26 persistently rotates, and wirerope 12 circularly pulls driven wheel 13, so that three-wheel back wheels of vehicle does not stop to rotate,
Tricycle is persistently travelled forward with the speed for being three times in first grade.
Gear of the present invention in actual use, Environmental sanitation tricycle is generally government procurement, and tricycle makes
User may have young and vigorous or have the old and the weak, then having divided three gears in Environmental sanitation tricycle design, government is being purchased back
Easily, to make its adapt to different crowd by using different gears before providing.And tricycle other than gear its
His structure belongs to necessary drive mechanism, is used in three gears by abundant, is not exclusively used in the knot of particular gears
Structure saves material and improves replacement efficiency.
In conclusion beneficial effects of the present invention: speed change gear does not need the processing of excessive precision；Relative cost is low, can
By property height, in addition each sprocket wheel is used in particular gears and is driven in traditional speed-changing chain, and sprocket wheel is caused to waste；This hair
Speed change gear highest in bright, which can be realized, is three times in first grade of speed, and whole device occupied space is smaller, is subsequent
Upgrading provides suitable space；In addition, whole device is driven by wirerope 12, the relative cost of wirerope 12 compared with
It is low, and repair and be easy, replacement is convenient.
Claims (5)
1. a kind of low cost Environmental sanitation tricycle speed change gear, it is characterised in that: it includes hind axle, crank shaft, U-shaped crossbeam, rank
Extension bar, the second axle sleeve, fanning strip, the second axis hole, the first speed change pin, the second speed change pin, third speed change pin, pulley, is consolidated support shaft
Determine block, wirerope, driven wheel, first shaft hole, movable circular groove, one-way clutch, scroll spring, the first axle sleeve, supporting block, gear
Block, reset spring, first gear, rack gear, locating piece, sliding slot, second gear, third axis hole, teeth, wherein the second axle sleeve passes through
The bearing fit of its inner headed face and support shaft periphery is mounted in support shaft；First gear is nested in second by its inner headed face
On the periphery of axle sleeve and connection fixed thereto；The radian of fanning strip is 90 degree；Close to the position of arc core on the end face of fanning strip
It is provided with the second axis hole；Fanning strip is nested on the periphery of the second axle sleeve by the second axis hole and connection fixed thereto；First becomes
Speed pin, the second speed change pin and third speed change pin are mounted on the end face of fanning strip；The center of first speed change pin and the second axis hole
Line distance of the line distance at center less than the center of the second speed change pin and the center of the second axis hole；The center of second speed change pin
It is less than the line distance at the center of third speed change pin and the center of the second axis hole with the line distance at the center of the second axis hole；First
The line at the center of the center of speed change pin and the second axis hole with the line at the center of the second speed change pin and the center of the second axis hole it
Between there are certain angles；Center and second of the line at the center at the center and the second axis hole of the second speed change pin with third speed change pin
There are certain angles between the line at the center of axis hole；
Supporting block is mounted on the upper surface of the U-shaped crossbeam of tricycle by one end；Five pulleys each by pin from top to bottom according to
It is secondary to be mounted in supporting block on the side of fanning strip, and the spacing between five pulleys is equal；Number first from bottom to top
Pulley and second pulley are matched with the first speed change pin, and second pulley and third pulley are matched with the second speed change pin,
Third pulley and the 4th pulley are matched with third speed change pin；Fixed block is mounted in supporting block close to the one of fanning strip
Side, and fixed block is located at the lower section of nethermost pulley；Third axis hole is provided at the end face center of second gear；Second gear
The teeth of certain radian are provided on periphery；Second gear is mounted on tricycle by the bearing fit of third axis hole and crank shaft
U-shaped crossbeam between；The upper surface of locating piece is provided with sliding slot；Locating piece is mounted on the lower end surface of U-shaped crossbeam by end face thereon
On；Rack gear is embedded in sliding slot by being slidably matched；Rack gear one end is meshed with first gear, and the other end and second gear match
It closes；
One-way clutch is mounted on hind axle by being fixedly connected between its inner headed face and hind axle periphery；Driven wheel
Movable circular groove is provided at one end face center；First shaft hole, and first shaft hole and work are provided at another end face center of driven wheel
Dynamic circular groove communicates；Driven wheel is nested on the periphery of one-way clutch by first shaft hole；First axle sleeve passes through its inner headed face
It is mounted on hind axle with the bearing fit of hind axle periphery, and one end of the first axle sleeve is located at the movable circular groove of driven wheel
In；One end of first axle sleeve stretching activity circular groove is fixedly connected by joining rod with the U-shaped crossbeam of tricycle；Scroll spring winding
On the periphery of the first axle sleeve and it is located in the movable circular groove of driven wheel；The both ends of scroll spring are respectively in movable circular groove
The connection of the periphery of disc and the first axle sleeve；Wirerope one end is fixedly connected with upper end of fixing block face, and the other end is around topmost
Pulley be wrapped on the periphery of driven wheel；Wirerope is matched with five pulleys.
2. a kind of inexpensive Environmental sanitation tricycle speed change gear according to claim 1, it is characterised in that: above-mentioned initial shape
State, the first speed change pin are in contact with steel wire.
3. a kind of inexpensive Environmental sanitation tricycle speed change gear according to claim 1, it is characterised in that: above-mentioned reset spring
For compressed spring.
4. a kind of inexpensive Environmental sanitation tricycle speed change gear according to claim 1, it is characterised in that: above-mentioned second gear
Teeth on periphery are 30 degree or 60 degree or 90 degree.
5. a kind of inexpensive Environmental sanitation tricycle speed change gear according to claim 1, it is characterised in that: above-mentioned first gear
Reference diameter it is equal with the reference diameter of second gear.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810934193.6A CN109131717B (en) | 2018-08-16 | 2018-08-16 | Low-cost sanitation tricycle speed change gear |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810934193.6A CN109131717B (en) | 2018-08-16 | 2018-08-16 | Low-cost sanitation tricycle speed change gear |
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| Publication Number | Publication Date |
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| CN109131717A true CN109131717A (en) | 2019-01-04 |
| CN109131717B CN109131717B (en) | 2020-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810934193.6A Active CN109131717B (en) | 2018-08-16 | 2018-08-16 | Low-cost sanitation tricycle speed change gear |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319768A (en) * | 2019-07-30 | 2019-10-11 | 宁波市特种设备检验研究院 | It is a kind of for measuring the tool structure of elevator wire rope subtended angle |
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| CN85102408A (en) * | 1985-04-01 | 1987-01-17 | 杨百钧 | Rope drive Manpower propulsion of bicycle system |
| CN2040485U (en) * | 1988-11-22 | 1989-07-05 | 徐奇伦 | Reciprocating driving device for electric and pedal double purpose cycle |
| ES2084536B1 (en) * | 1992-05-05 | 1998-08-01 | Guerrero Manuel Zaldivar | AUTOMATIC SHIFT, TWO SPEEDS, FOR BICYCLE. |
| WO1999011515A1 (en) * | 1997-09-04 | 1999-03-11 | Bigspin Technology Inc. | Variable ratio chain drive transmission |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110319768A (en) * | 2019-07-30 | 2019-10-11 | 宁波市特种设备检验研究院 | It is a kind of for measuring the tool structure of elevator wire rope subtended angle |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109131717B (en) | 2020-04-14 |
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Effective date of registration: 20231109 Address after: No. 68, Community 1, Jinglong Village, Hangu Town, Jiulongpo District, Chongqing, 400050 Patentee after: CHONGQING LIFAN THREE MOTORCYCLE Co.,Ltd. Address before: 350200 305 units of 1 buildings in Jinjiang garden three District, Changle District, Fuzhou, Fujian, China Patentee before: The permanently happy head of district in Fuzhou City wins Information Technology Co.,Ltd. |
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