CN2311431Y - Front and rear wheels independent suspension vibration damping, double-booster, speed varying bicycle - Google Patents

Abstract

The utility model relates to a front and a rear wheels independent suspension vibration damping, double-booster, speed varying bicycle. The utility model is characterized in that a vehicle frame can be reduced into a 1 shape, a front wheel is supported by an easily moved parallelogrammic vibration damping frame, and a back wheel is supported by a back vibration damping frame. When the front and the back wheels bounce or the gravity of the human body moves, because a lever acts on a transmission mechanism in a speed-changing box, the vibration damping frames of the front and the back wheels in the process of swinging up and down are turned into rotating force to drive the back wheel. The utility model does not need operation, and the manpower is not consumed. The bidirectional booster can reduce the driving force discontinuity in the process of reciprocation driving; while the vibration is damped, the pedal force is added by 2 / 3. A fixed rod of a front and a back damping springs, and the vehicle body can be reduced, which is convenient for transportation and storage.

Description

Front and back wheel independent suspension vibration damping, two power-assisted, variable speed bicycle

The utility model relates to a kind of with wheel ride instead of walk simple machinery, the particularly device of front and back wheel independent suspension vibration damping, two power-assisted, variable speed bicycle.

Bicycle is by the manpower foot-driven, is become complete car bodies such as a manipulation, transmission, walking along the street by unit constructions such as vehicle frame, front-wheel, front fork, handlebar, brake, saddle, pedal, car thigh, axis, chain wheel, chain, flywheel and trailing wheels.The short distance traffic instrument can be made, the physical fitness device can be made again.It is desirable not producing the three disasters.But this simple and flexible is the vehicle easily, and such problem is arranged, and mono-is foot-operated to be driven, under power not only, and make the people tired easily, and especially the spring of wheel makes the people feel to vibrate uncomfortable during Uneven road, also damages parts and vehicle frame easily.

In order to address this problem, common way is to reduce the speed of a motor vehicle, reinforces vehicle frame, and Chinese patent application CN202927U proposes the pitch force that bicycle is suffered, through surmounting the rotating torque that becomes inertia wheel from the transmission of device speed increasing mechanism, and then change the bicycle ahead power into.But concerning bicycle, be difficult to implement, one side requires on the mechanism structure feasible, because bicycle is to drive by manpower, usually advances on different road surfaces on the other hand, there has been the heavy weight inertia wheel to increase the heaviness of bicycle, strengthened difficulty for upward slope and starting.

The purpose of this utility model is that a kind of front and back wheel independent suspension vibration damping, two power-assisted, variable speed bicycle device will be provided, it becomes 1 font dwindling vehicle frame, increased movable position, the car body that can stretch, convenient carrying and storing is especially in movability, foot-operated power, human body gravity have been effectively utilized, pitch force in the driving, application force and antagonistic force produce strong propulsive effort in conjunction with former and later two lever machinery motions.

The purpose of this utility model is to realize like this, in 1 font vehicle frame upper end is the saddle of load human body weight, the centre is the bearing support and the tail-bracket of front and back damper spring, the lower end is the change speed gear box that is fixed as one, left and right sides car thigh is assemblied on the axis probe of change speed gear box both sides, and chain wheel is on the castellated shaft that is assemblied in the same center of circle of axis, the outside transferring structure that same chain, flywheel and trailing wheel are formed.The front wheel independent suspension vibration-absorbing mounting is made up of parts such as front-wheel, front fork, front fork central siphon, handlebar, last pendulum, forward swing, preceding damper springs.Because the front wheel independent suspension vibration-absorbing mounting is provided with the special property of guide front wheel and steering handlebar, pendulum and forward swing two ends wheel shaft type connect between front fork central siphon and the vehicle frame in the utilization, form the parallelogram of movability, its effect is to guarantee that handlebar is parallel with vehicle frame when swing.Be bearing between forward swing (1/5th or 1/4th places) and the bearing support front end, by preceding damper spring as buffering.The rear wheel independent suspension vibration damping is made up of trailing wheel, back pendulum, back damper spring.Back pendulum one end is hind axle fixedly, and the other end is fixed on the back balance staff on the change speed gear box, is bearing in the back by the back damper spring and puts between (1/5th or 1/4th places) and the bearing support rear end, as buffering.The shared resistance gauge of front and back wheel independent suspension vibration damping (change speed gear box).Change speed gear box in 1 font vehicle frame lower end, it is to become resistance gauge when vibration damping that three effects one are arranged.The 2nd, speed-changing mechanism.Three admit and transformation forward swing power back pendulum power, the transmission device of foot-operated power.Concrete work is such, when (pedal, saddle, tail-bracket wherein being arranged) on the human body weight load vehicle frame or during the spring of front and back wheel, front and back wheel independent suspension vibration-absorbing mounting, the resistance of damper spring upwards lifts before and after getting rid of, front and back pendulum helical teeth fan in the gang speed-variation case, because leverage produces and broadcasts power, under the floating gear effect of front and back, what be delivered to clutch gear or clutch driven gear is the unidirectional force rotation.Foot-operated power adds to come in by axis, ratchet, clutch gear internal diameter sawtooth.Interacting inside and outside the power of this three aspect, help mutually, is again separately independently.Can be as required by speed change the control shift fork of transferring the files be entered neutral gear, power does not have output is arranged.Need powerful the driving to utilize speed change the control shift fork of transferring the files, the second gear driven gear is combined with engagement pawl by combined hole to the clutch gear right side along axial slip, and the transmittance process of interlock second gear driven gear, castellated shaft, chain wheel, chain, flywheel, trailing wheel is called one grade of speed change.Need the middling speed driving time to utilize speed change the control shift fork of transferring the files, make the second gear driven gear along axial slip, the transmission of engagement second gear driving gear (combined hole and engagement pawl break away from simultaneously) interlock clutch gear, clutch driven gear, two of speed changes, second gear driving gear, second gear driven gear, castellated shaft, chain wheel, chain, flywheel, trailing wheel is the second gear speed change.When needing high speed traveling, utilize speed change the control shift fork of transferring the files, make three to be that the transmission of clutch gear, clutch driven gear, two of speed changes, third speed drive gear, third gear driven gear, castellated shaft, chain wheel, chain, flywheel, trailing wheel is a three class gear shift in proper order when driven gear meshes third speed drive gear (second gear driven gear and the disengaging of second gear driving gear simultaneously) interlock along axial slip.This change speed gear box be utilize gear rotation with lubricating oil splash to needing on the lubricating parts.

The utility model becomes 1 font because dwindle vehicle frame, increase movable position, so car body has the retractility and the elasticity of certain limit in movability, front and back wheel independent suspension vibration damping is the transmission device in the leverage change speed gear box simultaneously, the resistance gauge that the shared unidirectional force of damper spring transmits before and after forming, so front and back wheel independent suspension vibration-absorbing mounting is in conjunction with change speed gear box, vibration damping power-assisted double action is arranged, so this car power-assisted produces naturally, need not operation, do not consume manpower, two-way power-assisted has reduced the short intermittence of propulsive effort of reciprocal transmission, add foot-operated power, so this car propulsive effort is one times or half as much again of existing bicycle; Powerful propulsive effort has been arranged,, had the favorable damping device, so just adapt to various road surfaces so just can improve the driving speed per hour.

The concrete structure of utility model is provided by following embodiment and accompanying drawing thereof.

First page of Fig. 1 intuitively becomes according to the car body that the utility model proposes

Change figure

Fig. 2 is the structural representation of this car

Second page of Fig. 3 is that pulsation-free is dynamically schemed when driving

Fig. 4 is road surface when uneven, the front wheel independent suspension vibration damping

Swing is figure dynamically

Fig. 5 is road surface when uneven, the rear wheel independent suspension vibration damping

Swing is figure dynamically

Fig. 6 is a change speed gear box left side External view

Fig. 7 is that External view the 3rd page of Fig. 8 in change speed gear box right side is change speed gear box vertical section structure figure

Fig. 9 is a change speed gear box front half-sectional view

Figure 10 is Fig. 8 A-A lateral plan

Figure 11 is Fig. 8 B-B longitudinal diagram

Figure 12 is that the 4th page of Figure 13 of the local example cross-section figure of Fig. 8 is speed change neutral gear scheme drawing

Figure 14 is one grade of scheme drawing of speed change

Figure 15 is a speed change second gear scheme drawing

Figure 16 is that the 5th page of Figure 17 of speed change third gear scheme drawing is that speed change is audio-visual picture

Figure 18 is that speed change is handled interlock figure

Figure 19 is the shift fork shaft longitudinal diagram

Figure 20 is a shift fork shaft internal organs pseudosection

Figure 21 is 1. vehicle frames among Figure 19 A-A cutaway view figure; 2. saddle; 3. tail-bracket; 4. front-wheel; 5. front brake; 6. trailing wheel; 7. back brake; 8. lock clamps; 9. handlebar; 10. speed change handle; 11. front fork; 12. speed change bidding quotation; 13. last pendulum; 14. forward swing; 15. back pendulum; 16. chain; 17. chain wheel; 18. change speed gear box; 19. back damper spring; 20. preceding damper spring; 21. left and right sides car thigh; 22. flywheel; 23. axis; 24. two of speed changes; 25. back balance staff; 26. preceding balance staff; 27. clutch gear; 28. second gear driven gear; 29. third gear driven gear; 30. ball bearing of main shaft; 31. forward swing helical teeth fan; 32. preceding floating gear; 33. back floating gear; 34. back pendulum helical teeth fan; 35. clutch driven gear; 36. second gear driving gear; The shift fork 37. transfer the files; 38. third speed drive gear; 39. castellated shaft; 40. cylindrical roller; 41. oil-draining locknut; 42. oiling screw; 43. ratchet; 44. standing screw; 45. pedal; 46. shift fork spring; 47. oil sealing; 48. ball; 49. declutch shift shaft; 50. unwarranted charge screw; 51. drift bolt; 52. speed change pull bar; 53. shift lock; 54. shift triangle; 55. speed change steel rope; 56. setting nut; 57. rubber cushion; 58. spring fixed link; 59. ratchet spring; 60. thrust ball bearing; 61. floating spring; 62. silk shelves; 63. front fork central siphon; 64. flat shelves; 65. bearing support; 66. front wheel spindle; 67. hind axle; 68. after pedal bar.

First page embodiment illustrated in fig. 1 in, the vehicle frame (1) that presents 1 font is provided with saddle (2), bearing support (65), tail-bracket (3), change speed gear box (18) they are this car heavy burden centres.In vehicle frame (1) front portion is by front-wheel (4), front fork (11), front brake (5), front fork central siphon (63), handlebar (9), lock pincers (8), speed change is (10), last pendulum (13), forward swing (14), preceding damper spring parts such as (20) are formed front wheel independent suspension vibration damping and actuating element.The two ends of wherein going up pendulum (13) are bearing between front fork central siphon (63) upper end and the bearing support (65) with wheel shaft type respectively, and the two ends of forward swing (14) are respectively to be bearing in same vehicle frame (1) formation parallelogram on front fork central siphon (63) lower end and the preceding balance staff of change speed gear box (18) with wheel shaft type.The two ends of preceding damper spring (20) are bearing in respectively between forward swing (14) and the bearing support (65), and its effect is the impulsive force of alleviating from front-wheel (4), or alleviate vehicle frame (1) carrying force impact front-wheel (4).At vehicle frame (1) rear portion is by trailing wheel (6), back pendulum (15), after pedal bar (68), back damper spring parts such as (19) composition rear wheel independent suspension vibration damping and drive part, the fixing hind axle of an end of back pendulum (15) wherein, the other end is fixed on the back balance staff of change speed gear box (18); The two ends of back damper spring (19) are bearing in respectively between back pendulum (15) and the bearing support (65); Its effect is to alleviate from impulsive force or alleviation vehicle frame (1) the carrying force impact trailing wheel (6) of trailing wheel (6) to vehicle frame (1).At change speed gear box (18) outside left and right sides car thigh (21), pedal (45), chain wheel (17), chain (16) are the parts of foot-operated power and transmission mechanism.Because vehicle frame (1) is 1 font, increase at movable position, makes this car that certain elasticity and flexible be arranged, as long as damper spring (20) (19) fixed link (58) just can dwindle car body before and after taking out down, dotted line is exactly flexible dynamic structure among the figure, and it is convenient to carrying and stores.

In Fig. 2 structural representation, front-wheel (4), front fork (11), front fork central siphon (63), handlebar (9), forward swing (14), preceding damper spring (20), preceding balance staff (26), forward swing helical teeth fan (31) are formed lever front wheel independent suspension shock attenuation unit, wherein front wheel spindle (66) is a power arm to preceding balance staff (26), and the radius that damper spring (20) is fanned (31) to the distance and the preceding balance staff (26) of preceding balance staff (26) to the forward swing helical teeth before 1/5th or 1/4th supportings of forward swing (14) is a resistance arm.By trailing wheel (6), back pendulum (15), back damper spring (19), back balance staff (25), back pendulum helical teeth fan (34) is formed lever-type rear wheel independent suspension shock attenuation unit, wherein hind axle (67) is a power arm to back balance staff (25), and the radius that damper springs (19) are put helical teeth fan (34) to the distance and the back balance staff (25) of back balance staff (25) to the back after 1/5th or 1/4th supportings of back pendulum (15) is a resistance arm.Former and later two shock attenuation units transmit castellated shaft (39) jointly with the resistance gauge of change-speed box (18) as unidirectional force by change gear mechanism, chain wheel (17), and chain (16), flywheel (22) is to trailing wheel (6).Foot-operated power is entered by axis (23) by left and right sides car thigh (21).If two people are with taking advantage of a car, the latter rides on the tail-bracket, and two pedal bar (68) after riding stands up, and sits down just can afterburningly aid and drives.

At second page of Fig. 6 change speed gear box (18), be fixed on the lower end of vehicle frame (1) by standing screw (44), be installed on the preceding balance staff (26) at left side forward swing (14), with forward swing helical teeth fan (31) become one (dotted portion among the figure), the back pendulum (15) on right side is installed in the two ends of back balance staff (25), the back pendulum helical teeth fan (34) in the same change speed gear box (18) become one (dotted portion among the figure).Left and right sides car thigh (21) is assemblied on change speed gear box (18) both sides axis (23) probe.Chain wheel (17) is installed on the castellated shaft with the same center of circle of axis (23).There are the screw of oiling and speed change pull bar (52) in change speed gear box (18) upper end, and there is oil-draining locknut (41) lower end.

In the 3rd page of Fig. 8, change speed gear box (18) is made up of left and right sides halves housing.Main shaft has axis (23), preceding balance staff (26), back balance staff (25); Transmission shaft has two of speed changes (24), castellated shaft (39).The two ends of preceding balance staff (26) are to be bearing on the halves housing of change speed gear box (18) left and right sides by ball bearing of main shaft (30) and cylindrical roller (40), the centre is the polygon cylinder that is exposed, for fixing forward swing is used, in the same floating gear (32) engagement of the left side of axle forward swing helical teeth fan (31).The two ends of back balance staff (25) are the square column that has screw rod, be that put fixing back, be to be bearing in by ball bearing of main shaft (30) and cylindrical roller (40) on the halves housing of change speed gear box (18) left and right sides thereafter, pendulum helical teeth fan (34) engagement back floating gear (33) behind the left side of axle.The two ends of axis (23) are to lean out change speed gear box (18) left and right sides halves housing, left and right sides car thigh (21) is installed on the square probe that has screw rod, the left side is to be bearing on the left side housing of change speed gear box (18) by ball bearing of main shaft (30), and the right side is to be bearing on castellated shaft (39) inner diameter wall by cylindrical roller (40); Left side string cover floating spring (61), thrust ball bearing (60), preceding floating gear (32) are taken turns the clutch gear (27) that faces mutually therewith, and the space of sway is arranged herein, it is the sawtooth that transmits unidirectional force that two-wheeled is waitd upon relatively, and its effect is that positive force engagement opposite force breaks away from.The same axis of clutch gear (27) (23) also is that positive force closes, opposite force from dynamically, inner structure is such, axis (23) herein cam to be provided with wait upon relative with ratchet (43) of ratchet spring (59) be clutch gear (27) internal diameter sawtooth, both sides are to be bearing in respectively on silk shelves (62) the peace shelves (64) on the axis (23) by ball (48), be provided with on this right side of taking turns combined hole with the engagement pawl on the second gear driven gear (28) to waiing upon.Castellated shaft (39) internal diameter left side is to be bearing on the axis (23) by ball (48), the right side is to be bearing on the axis (23) by cylindrical roller (40), external diameter has keypad and keyway, second gear driven gear (28) and third gear driven gear (29) can be along axially horizontally slipping under the control of the shift fork of transferring the files, right side at this is bearing on change speed gear box (18) the right-hand part housing by ball bearing of main shaft (30), assembles chain wheel (17) on the probe outside housing.Speed change two (24) is provided with four gears, and wherein back floating gear (33) is the left side that string is enclosed within this; There is floating spring (61) on back floating gear (a 33) left side, thrust ball bearing (60), and clutch driven gear (35) is faced on the right side, and it is the sawtooth that transmits unidirectional force that two-wheeled is waitd upon relatively, and mobile space is arranged herein, can mesh by positive force, and opposite force breaks away from; Clutch driven gear (35) engagement on this has second gear driving gear (36) and third speed drive gear (38) from gear (27) on this right side.This two ends are to be bearing on the housing of change speed gear box (18) left and right sides halves by ball bearing of main shaft (30).The same clutch gear of engagement pawl (27) combined hole on the second gear driven gear (28) among the figure links to each other, and becoming a movable integral body is the transmission of one grade of speed.

In the 4th page of Figure 13, the forward swing positive force is entered by forward swing helical teeth fan (31), by the engagement clutch gear (27) of preceding floating gear (32); Foot-operated positive force is by ratchet engagement clutch gear (27) internal diameter sawtooth, junction forward swing power by axis (23); Back pendulum positive force is entered by back pendulum helical teeth fan (34), by the engagement clutch driven gear (35) of back floating gear (33), and engagement clutch gear (27).Though three aspect power can be incorporated into one and take turns, variable gear is in free state among the figure, although speed change two (24) is rotated, the torsional forces on three main shafts is not delivered to castellated shaft (39) and goes up and do not have the approach that power output is arranged.At this moment the gear meshing state is called neutral gear, is applied to descending and parking.

Be the handsetting gear shift fork of transferring the files in Figure 14, make second gear driven gear (28) along castellated shaft (39) axial slip to the left side, engagement pawl enters the combined hole on clutch gear (27) right side, form one movable whole, interlock castellated shaft (39).The trend of torsional forces pipeline shown in black thick-line arrow among the figure, foot-operated positive force are directly to be entered by axis (23) and ratchet engagement clutch gear (27) internal diameter sawtooth; And the forward swing positive force enters after comparing by forward swing helical teeth fan (31) number of teeth and preceding floating gear (32) number of teeth; Back pendulum positive force is to compare with back floating gear (33) number of teeth by back pendulum helical teeth fan (34) number of teeth, passing through clutch driven gear (35) number of teeth and clutch gear (27) number of teeth again compares and enters, three aspect power can be synthesized one power and be driven castellated shaft (39) rotation, and the torsional forces that passes is called one grade of speed.

At Figure 15 is the handsetting gear shift fork of transferring the files, and second gear driven gear (28) is broken away from clutch gear (27) move to the right along castellated shaft (39), with second gear driving gear (36) engagement, becomes one movable whole.Changed the approach that torsional forces transmits, the trend shown in black thick-line arrow among the figure.Forward swing positive force and foot-operated positive force will be crossed over clutch gear (27) and enter into clutch driven gear (35) junction back pendulum positive force, by the engagement of the second gear driving gear (36) on the speed change two (24) second gear driven gear (28), after two tooth numbers compared, drive castellated shaft (39) passed torsional forces and is called second gear speed.

At Figure 16 is the handsetting gear shift fork of transferring the files, make third gear driven gear (29) along castellated shaft (39) axial slip to the right side (simultaneously second gear driven gear (28) break away from second gear driving gear (36)), same third speed drive gear (38) engagement, become a movable integral body, changed the approach that torsional forces transmits again, the trend shown in black thick-line arrow among the figure.Forward swing positive force, foot-operated positive force, back pendulum positive force all are by third speed drive gear (38) the engagement third gear driven gear (29) on the speed change two (24), and the two tooth numbers back that compares drives the torsional forces that castellated shaft (39) passes and is called third speed gear.

At the 5th page of Figure 17 is the right side of handlebar (9), and lock pincers (8) are arranged, speed change handle (10), and speed change bidding quotation (12), the hand screw type speed change actuating element that speed change lock (53) is formed, its effect is when driving, hand does not leave handlebar (9) just can speed change.

In Figure 18, speed change steel rope (55) one ends connect speed change triangle (54) one ends.The speed change triangle is bearing on change speed gear box (18) housing for (54) one jiaos, and an end connects speed change pull bar (52).It is parallel that the two ends of declutch shift shaft (49) are bearing on change speed gear box (18) housing same castellated shaft (39) respectively, and wherein the left side is fixing with unwarranted charge screw (50); String cover shift fork spring (46) between left side and the shift fork of transferring the files (37); The other end of speed change pull bar (52) connects the shift fork (37) of transferring the files by drift bolt (51) in the sliding hall of internal diameter, its effect is to utilize resilient engagement speed change steel rope degree of tightness, make the shift fork of transferring the files (37) slip go up to dial and move second gear driven gear (28) and third gear driven gear (29) at declutch shift shaft (49), make castellated shaft (39) receive the rotational force that varies in size, realize handling the purpose of speed change.

Claims (8)

1, in the simple machine of riding instead of walk with wheel, particularly front and back wheel independent suspension vibration damping, two power-assisted, variable speed bicycle device, this device has saddle (2), centre that bearing support (65), tail-bracket (3) are arranged in the vehicle frame that presents 1 font (1) upper end, and there is change speed gear box (18) lower end; The front wheel independent suspension vibration-absorbing mounting that the front portion is made up of front-wheel (4), front fork (11), front brake (5), front fork central siphon (63), handlebar (9), lock pincers (8), last pendulum (13), forward swing (14), preceding damper spring (20); The rear portion by trailing wheel (6), back pendulum (15), after pedal the rear wheel independent suspension vibration-absorbing mounting that bar (68), back damper spring (19) are formed; In the change speed gear box (18), main shaft has axis (23), preceding balance staff (26), back balance staff (25), transmission shaft that speed change two (24), castellated shafts (39) are arranged, the two ends that it is characterized in that pendulum (13) be bearing in wheel shaft type that front fork central siphon (63) is gone up respectively and bearing support (65) between, one end of forward swing (14) is bearing under the front fork central siphon (63) with wheel shaft type, the other end is fixed on the preceding balance staff (26), same vehicle frame (1) forms parallelogram, with the lever that forward swing helical teeth fan (31) becomes one, floating gear (32) before forward swing helical teeth fan (31) engagement; Back pendulum (15) one end bearings are in hind axle (67), one end is fixed on the back balance staff (25), fan the lever that (34) become one with back pendulum helical teeth, back pendulum helical teeth fan (34) engagement, back floating gear (33), the fixed link (58) of damper spring (20) and back damper spring (19) can dwindle car body before taking out down.

2, device according to claim 1, it is characterized in that lock pincers (8) are arranged on the right side of handlebar (9), speed change is (10), speed change bidding quotation (12), speed change lock (53), be tightened up or loosen gang speed-variation triangle (54), speed change pull bar (52) at speed change steel rope (55), shift fork spring (46), make the shift fork of transferring the files (37) on declutch shift shaft (49), adjust second gear driven gear (28), third gear driven gear (29) is on castellated shaft (39), along axial sway.

3, device according to claim 1, it is characterized in that there is forward swing helical teeth fan (31) in preceding balance staff (26) left side, the centre is the polygon cylinder that is exposed, and two ends are bearing on the halves housing of change speed gear box (18) left and right sides by ball bearing of main shaft (30) and cylindrical roller (40) respectively; The two ends of back balance staff (25) are the square column that has screw rod, are being thereafter to be bearing in by ball bearing of main shaft (30) and cylindrical roller (40) on the halves housing of change speed gear box (18) left and right sides, and back pendulum helical teeth fan (34) is arranged in the left side of axle.

4, device according to claim 1, the two ends that it is characterized in that axis (23) lean out change speed gear box (18), left and right sides car thigh (21) is assemblied in, the left side is to be bearing on the left side housing of change speed gear box (18) by ball bearing of main shaft (30), the right side is to be bearing on castellated shaft (39) inner diameter wall by cylindrical roller (40), the middle part clutch gear (27) of having taken back.

5, device according to claim 1, the two ends that it is characterized in that speed change two (24) are to be bearing on the halves housing of change speed gear box (18) left and right sides by ball bearing of main shaft (30), back floating gear (33) is arranged on this axle, clutch driven gear (35), second gear driving gear (36), third speed drive gear (38).

6, according to claim 1,2 described devices, it is characterized in that castellated shaft (39) internal diameter left side is bearing under the flat shelves (64) of axis (23) by ball (48), the right side is bearing on the axis (23) by cylindrical roller (40), external diameter is a spline, be bearing on change speed gear box (18) the right-hand part housing assembling chain wheel (17) on the probe by ball bearing of main shaft (30) on this right side.

7, according to claim 1,4 described devices, the internal diameter that it is characterized in that clutch gear (27) is the sawtooth that transmits unidirectional force, ratchet (43) on same axis (23) cam is to waiing upon, effect in ratchet spring (59), the positive force engagement, opposite force breaks away from, the left side is bearing on the silk shelves (62) by ball (48), the right side is bearing on the flat shelves (64) by ball (48), external diameter tooth engagement clutch driven gear (35), in clutch gear (27) left side is the sawtooth that transmits unidirectional force, with preceding floating gear (32) to waiing upon, there are combined hole and second gear driven gear (28) in the right side to waiing upon.

8, according to claim 1,5,7 described devices, it is characterized in that preceding floating gear (32) is the left side that string is enclosed within axis (23), with forward swing helical teeth fan (31) engagement, taking turns the right side at this is the sawtooth that transmits unidirectional force, in left side floating spring (61), the booster action of thrust ball bearing (60), the engagement of same clutch gear (27) positive force, opposite force breaks away from; Back floating gear (33) is the left side that string is enclosed within speed change two (24), with back pendulum helical teeth fan (34) engagement, taking turns the right side at this is the sawtooth that transmits unidirectional force, in left side floating spring (61), thrust ball bearing (60) booster action, with the engagement of clutch driven gear (35) positive force, opposite force breaks away from.

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