CN105709425B - low friction carbon-free trolley - Google Patents
low friction carbon-free trolley Download PDFInfo
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- CN105709425B CN105709425B CN201410731285.6A CN201410731285A CN105709425B CN 105709425 B CN105709425 B CN 105709425B CN 201410731285 A CN201410731285 A CN 201410731285A CN 105709425 B CN105709425 B CN 105709425B
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- rotating shaft
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- driving wheel
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Abstract
The invention discloses a kind of low friction carbon-free trolley, including vehicle frame, deflecting roller and driving wheel, deflecting roller and driving wheel are on the same line, left and right in the middle part of the lower section of vehicle frame to be arranged with driven pulley；Vehicle frame is provided with support, and the fixed mount of cantilever tip is provided with fixed pulley, its internal setting potential energy block；First rotating shaft and the second rotating shaft are additionally provided with vehicle frame, first rotating shaft is multi-diameter shaft, it is made up of two sections of different cylinder axis of diameter, is fixed on by both ends support on vehicle frame, is located at the potential energy block connection flexible cords and fixed pulley and the small column axis connection of first rotating shaft of internal stent；Second rotating shaft is rigidly connected with driving wheel, and the diameter of the second rotating shaft is less than the diameter of the big cylinder axis of first rotating shaft, and flexible cords are wound with the second rotating shaft, and the second rotating shaft is connected by the big cylinder axis of flexible cords and first rotating shaft.This dolly mass centre is substantially at the geometry center of dolly, reduces the support force of driven pulley, is advantageous to reduce the frictional force with ground.
Description
Technical field
The present invention relates to carbon-free trolley, specifically a kind of low friction carbon-free trolley.
Background technology
Existing carbon-free trolley is above setting a deflecting roller mostly, behind be provided with the same driving wheel of two specifications；
Also have and a deflecting roller be set below, before the same driving wheel of two specifications is set.Due to by structure and processing cost
Limitation, two driving wheels are only simply to be rigidly connected with an axle, rare provided with differential mechanism.The nothing of said structure
Carbon dolly during turning, due to two drivings wheel speeds are identical and pace it is inconsistent cause to produce with ground it is larger
Frictional force, sliding after interior side drive wheel, outside driven wheel is advancing slip.In carbon-free trolley contest, dolly is turned more during advance.
Therefore, rigidly connected two driving wheels rotating speed during advance is identical and pass by apart from unequal, and inner curve is apart from small, outside
Bend distance is big, and two such driving wheel and ground all produce larger frictional force, and this frictional force will be serious by accumulating
The distance of advance is had influence on, reduces competitiveness.
The content of the invention
The purpose of the present invention is in view of the shortcomings of the prior art, and to provide a kind of low friction carbon-free trolley, the quality of vehicle
Center is substantially at the geometry center of dolly, reduces the support force of driven pulley, is advantageous to reduce its frictional force with ground.
Realizing the technical scheme of the object of the invention is：
A kind of low friction carbon-free trolley, including vehicle frame, deflecting roller and driving wheel, unlike the prior art：Deflecting roller
The centre of vehicle frame lower front portion is located at, driving wheel is located at the centre of vehicle frame lower rear, deflecting roller and driving wheel in same straight line
On；It is left and right in the middle part of the lower section of vehicle frame to be arranged with driven pulley, spring is provided between driven pulley and vehicle frame；It is provided with vehicle frame
The support being made up of three round bars, the bottom of support are fixed on vehicle frame, and top is fixed by fixed mount, and fixed mount is provided with fixed
Pulley, the centre of form of support are on the position of centre of gravity of dolly, and the inside of support sets potential energy block；First rotating shaft is additionally provided with vehicle frame
With the second rotating shaft, first rotating shaft is multi-diameter shaft, is made up of two sections of different cylinder axis of diameter, is fixed on by both ends support
On vehicle frame, the potential energy block connection flexible cords and fixed pulley and the small column axis connection of first rotating shaft of internal stent are located at；Second
Rotating shaft is rigidly connected with driving wheel, and the diameter of the second rotating shaft is less than the diameter of the big cylinder axis of first rotating shaft, is twined in the second rotating shaft
Flexible cords are wound with, the second rotating shaft is connected by the big cylinder axis of flexible cords and first rotating shaft.
The steering mechanism of low friction carbon-free trolley of the present invention uses prior art.
Low friction carbon-free trolley of the present invention, deflecting roller and driving wheel are on the same line, left and right symmetrical at the middle part of vehicle frame
Provided with driven pulley, such dolly only participates in work when turning by some driven pulley, so as to form the support knot of three point one sides
Structure, the stability of dolly enforcement can be improved.The potential energy block of carbon-free trolley is slowly descending under terrestrial gravitation effect, the connection of potential energy block
Flexible cords the downward movement of potential energy block be changed into by displacement of the lines motion by fixed pulley be used as and actuate the power source of driving wheel.
It is characteristic of the invention that complete vehicle quality center is substantially at the geometry center of dolly, reduce the support force of driven pulley, favorably
In reduction and the frictional force on ground.
The technical scheme that existing carbon-free trolley actuates driving wheel is：Pass through the flexible cords drive being connected with potential energy block and its
Connected axis of rotation, then passes through one-level（It is or multistage）Speedup increment gear actuates driving wheel.Due to carbon-free trolley contest group
The descending distance of committee's meeting regulation potential energy block is fixed（Such as 400mm）, for increase the operating range of dolly it is most using diameter compared with
Big speed increasing gear and driving wheel, because these speed increasing gears and driving wheel are limited by product quantity and processing technology, whole zero
The error of the flatness of part, mass centre and the registration in axle center is larger, increases vibratory output during these parts turns, influences
The operating range of vehicle.
Carbon-free trolley of the present invention：There is no speed increasing gear, pass through the flexible wires wound in the different rotating shaft of two diameters
Restrict and increase the effect for exercising distance to reach using limited driving energy, to increase peripheral velocity, to reach.First rotating shaft is
Multi-diameter shaft, it is made up of two sections of different cylinder axis of diameter, the flexible cords that enough multi-turns are wound with its roundlet axis of a cylinder are straight
Connect and be connected with slow descending potential energy block, potential energy block downward movement is changed into by discharging the flexible cords being wrapped on roundlet axis of a cylinder
The rotation of this axle；Another flexible cords are connected on the big cylinder axis on this axle simultaneously, this flexible cords in the second rotating shaft with twining
Around flexible cords be integrated, the diameter of the second rotating shaft is less than the big axle of first rotating shaft.Turn similarly and by first rotating shaft
Move big cylinder axis and tighten up flexible cords, the second rotating shaft puts flexible cords to realize increase vehicle wheel rotational speed to realize that distance is exercised in increase
Purpose.
Advantages of the present invention：
1st, only be provided with a driving wheel among vehicle frame rear portion, avoid it is left and right respectively set a driving wheel by rigidly connect
Connecing causes to produce ground larger frictional force because left and right wheels travel speed is inconsistent when turning, and reduces this friction
Power to potential energy block store gravitional force consumption, be advantageous to by limited center of gravity potential energy come obtain the longer traveling of vehicle away from
From.
2nd, speedup increment is realized using the folding and unfolding of rotating shaft winding flexible cords of different sizes, cancels gear increaser
Structure, be advantageous to reduce the requirement to machining accuracy, simplify processing technology, save processing cost, avoid speed-up gears
Engaging friction power between gear, it is convenient to adjust speed increasing ratio.
3rd, gravitional force block is arranged on the straight line of 2 points of compositions of deflecting roller and driving wheel, and driving wheel is rotated between ground
The subpoint of caused direction face potential energy block center of gravity, driving force is reduced to steering force caused by complete vehicle quality center
Square, improve the riding stability of vehicle.
4th, left and right respectively to set a driven pulley, torque is fallen in side caused by the centrifugal force that resistance is formed when turning, and ensures correct
Driving trace.
Brief description of the drawings
Fig. 1 is the top view of the present invention；
Fig. 2 is the left view of the present invention.
In figure, the fixed pulley of 1. deflecting roller, 2. driving wheel, 3. 6. potential energy block of left right 5. spring of driven pulley of driven pulley 4. 7.
8. the big supports of 9. 10. second rotating shaft of flexible cords, 11. vehicle frame of cylinder axis 12. of first rotating shaft 8-1. roundlet axiss of a cylinder 8-2..
Embodiment
Present invention is further described below in conjunction with the accompanying drawings, but is not limitation of the invention.
Reference picture 1-2, a kind of low friction carbon-free trolley, including vehicle frame 11, deflecting roller 1 and driving wheel 2, deflecting roller 1 are located at
The centre of the lower front portion of vehicle frame 11, driving wheel 2 are located at the centre of the lower rear of vehicle frame 11, deflecting roller 1 and driving wheel 2 with always
On line；It is left and right in the middle part of the lower section of vehicle frame 11 to be arranged with left driven pulley 3 and right driven pulley 4, set between driven pulley and vehicle frame 11
There is spring 5；The support 12 being made up of three round bars is provided with vehicle frame 11, the bottom of support 12 is fixed on vehicle frame 11, top
Fixed by fixed mount, fixed mount is provided with fixed pulley 7, and the centre of form of support 12 is on the position of centre of gravity of dolly, support 12
Inside sets potential energy block 6；The rotating shaft 10 of first rotating shaft 8 and second is additionally provided with vehicle frame 11, first rotating shaft 8 is multi-diameter shaft, by diameter
Two sections of cylinder axis of different sizes are formed, and are fixed on by both ends support on vehicle frame 11, are located at the potential energy block 6 inside support 11 and connect
The roundlet axis of a cylinder 8-1 that flexible cords 9 are connect with fixed pulley 7 and first rotating shaft 8 is connected；Second rotating shaft 10 is rigidly connected with driving wheel 2,
The diameter of second rotating shaft 10 is less than the big cylinder axis 8-2 of first rotating shaft 8 diameter, and flexible cords 9 are wound with the second rotating shaft 10,
Second rotating shaft 10 is connected by flexible cords 9 with the big cylinder axis 8-2 of first rotating shaft 8.
Claims (1)
1. low friction carbon-free trolley, including vehicle frame, deflecting roller and driving wheel, it is characterized in that：
Deflecting roller is located at the centre of vehicle frame lower front portion, and driving wheel is located at the centre of vehicle frame lower rear, deflecting roller and driving wheel
On the same line；
It is left and right in the middle part of the lower section of vehicle frame to be arranged with driven pulley, spring is provided between driven pulley and vehicle frame；
The support being made up of three round bars is provided with vehicle frame, the bottom of support is fixed on vehicle frame, and top is consolidated by fixed mount
Fixed, fixed mount is provided with fixed pulley, and the centre of form of support is on the position of centre of gravity of dolly, and potential energy block is set in the inside of support；
Potential energy block is arranged on the straight line of 2 points of compositions of deflecting roller and driving wheel, and driving wheel rotates the caused friction between ground
The subpoint of force direction face potential energy block center of gravity；
First rotating shaft and the second rotating shaft are additionally provided with vehicle frame, first rotating shaft is multi-diameter shaft, by two sections of different cylinders of diameter
Axle is formed, and is fixed on by both ends support on vehicle frame, is located at potential energy block connection flexible cords and the fixed pulley and the of internal stent
The small column axis connection of one rotating shaft；
Second rotating shaft is rigidly connected with driving wheel, and the diameter of the second rotating shaft is less than the diameter of the big cylinder axis of first rotating shaft, and second
Flexible cords are wound with rotating shaft, the second rotating shaft is connected by the big cylinder axis of flexible cords and first rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410731285.6A CN105709425B (en) | 2014-12-05 | 2014-12-05 | low friction carbon-free trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410731285.6A CN105709425B (en) | 2014-12-05 | 2014-12-05 | low friction carbon-free trolley |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105709425A CN105709425A (en) | 2016-06-29 |
| CN105709425B true CN105709425B (en) | 2018-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410731285.6A Active CN105709425B (en) | 2014-12-05 | 2014-12-05 | low friction carbon-free trolley |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204246835U (en) * | 2014-12-05 | 2015-04-08 | 广西师范大学 | low friction carbon-free trolley |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6482070B2 (en) * | 2000-01-04 | 2002-11-19 | Philip A. Hogan | Gravity-powered toy vehicle with dynamic motion realism |
| CN203108200U (en) * | 2013-01-22 | 2013-08-07 | 河海大学常州校区 | Carbon-free trolley capable of jumping over barrier |
| CN103394194B (en) * | 2013-07-18 | 2015-06-17 | 西安科技大学 | Self-propelled trolley driven by gravitational potential energy and capable of travelling around splay route |
| CN203469462U (en) * | 2013-08-06 | 2014-03-12 | 苏州市职业大学 | Steerable three-wheel carbon-free trolley driven through energy conversion |
| CN103463812B (en) * | 2013-08-29 | 2015-12-02 | 西北工业大学 | A kind of carbon-free automatic carriage with commutation function |
| CN203829638U (en) * | 2013-12-27 | 2014-09-17 | 黑龙江农业工程职业学院 | Transmission and steering mechanism for S-shaped walking no-carbon trolley |
| CN203825935U (en) * | 2014-04-16 | 2014-09-10 | 南昌航空大学 | Carbon-free obstacle avoiding walking dolly |
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- 2014-12-05 CN CN201410731285.6A patent/CN105709425B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204246835U (en) * | 2014-12-05 | 2015-04-08 | 广西师范大学 | low friction carbon-free trolley |
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| CN105709425A (en) | 2016-06-29 |
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