Summary of the invention
The object of the present invention is to provide a kind of driver train, need not gear, it is simple in structure.
Another object of the present invention is to provide a kind of tube coiling appts or cable coiling device.
For realizing the driver train of said purpose, be characterized in, comprise fork; Track adjusting wheel; Drive wheel; Tension wheel; Driving band; Connected by driving band between fork, track adjusting wheel, drive wheel and the tension wheel, an end of driving band is fixed on the fork, and driving band extends from fork and pass through track adjusting wheel, drive wheel successively, and the other end is wound on the tension wheel; Tension wheel and retracing spring couple, and in the hunting range of part at least of fork, driving band and drive wheel engagement are with driving force, and this retracing spring on tension wheel, is applied with moment so that tension wheel tightens up driving band.
Described driver train, its further characteristics are also to comprise ratchet, ratchet and cam; Cam is fixed on a side of tension wheel, and ratchet is fixed on a side of drive wheel, and ratchet is that fulcrum can rotate with the axle; Ratchet is equipped with retracing spring, and cam and ratchet are meshed, and can drive ratchet and rotate; Ratchet separates with ratchet, but in the slewing area of part at least of cam, ratchet is meshed with ratchet.
Described driver train, its further characteristics be, comprises rolling wheel, connected by transmission shaft between rolling wheel and the drive wheel, and between transmission shaft and rolling wheel or the drive wheel free-wheel clutch is arranged.
Described driver train, its further characteristics are to be the driver train of tube coiling appts or cable coiling device.
Described driver train, its further characteristics be, said fork is for stepping on fork, and the end of stepping on fork is connected with stretcher.
Described driver train, its further characteristics be, driving band is a polywedge bet, and correspondingly, track adjusting wheel, tension wheel and drive wheel are the polywedge bet belt wheel.
Described driver train; Its further characteristics are; Fork, track adjusting wheel, drive wheel, tension wheel and driving band are positioned on the vertical side of a casing or frame; It can freely pivot on casing or frame by pivotal joint respectively for fork, track adjusting wheel, drive wheel and tension wheel, and the upper limit device of corresponding fork is arranged on casing or the frame.
Described driver train, its further characteristics be, the axle center of track adjusting wheel, drive wheel, tension wheel is triangularly arranged, and fork is positioned at this leg-of-mutton below.
Described driver train, its further characteristics are that said retracing spring is a wind spring.
Tube coiling appts or cable coiling device or cable coiling device for realizing said purpose are characterized in, comprise aforementioned arbitrary described driver train.
On fork, apply power, power is delivered to drive wheel, tension wheel from driving band after the track adjusting wheel guiding; So that drive wheel, tension wheel rotate, discharge the power on the fork after, under the effect of retracing spring; Tension wheel applies tensile force on driving band, and driving band drives fork and resets.Therefore can apply power repeatedly on fork; Thereby drive wheel is rotated, only need between drive wheel and rolling wheel, free-wheel clutch be set, free-wheel clutch breaks off when fork resets; Drive wheel just can constantly drive rolling wheel and rotate toward a direction, thereby reaches the purpose that furls.Since need not gear, therefore simple in structure, reduced a large amount of parts, practiced thrift installation work-hour, reduce the manufacturing cost of product, and reduced maintenance time.
The specific embodiment
As shown in Figure 1, driver train comprises fork 2, track adjusting wheel 6, drive wheel 7, tension wheel 8, driving band 4, and an end of driving band 4 is fixed on the fork 2, and driving band 4 is from fork 2 extend past track adjusting wheels 6, drive wheel 7, and the other end is wound on the tension wheel 8; Tension wheel 8 couples with retracing spring 9, and in the hunting range of part at least of fork 2, driving band 4 meshes with driving force with drive wheel 7, and this retracing spring 9 on tension wheel 8, is applied with moment so that tension wheel 8 tightens up driving band 4.
In like Fig. 1, Fig. 2, embodiment shown in Figure 5, connect by transmission shaft 11 between rolling wheel 17 and the drive wheel 7, and between transmission shaft 11 and the drive wheel 7 (also can be rolling wheel 17) free-wheel clutch 12 is arranged.
Fig. 1 to embodiment shown in Figure 5 can but be not limited to the driver train of tube coiling appts or cable coiling device.
Like Fig. 1, shown in Figure 2, in preferred embodiment of the present invention, fork 2 is for stepping on fork, and the end of stepping on fork is connected with stretcher 1.
In preferred embodiment of the present invention, like Fig. 1, Fig. 2, shown in Figure 3, driving band 4 is polywedge bet (multiple wedge slot is arranged on it), and correspondingly, track adjusting wheel 6, tension wheel 7 and drive wheel 8 are the polywedge bet belt wheel.
In preferred embodiment of the present invention; Like Fig. 1, shown in Figure 2; Fork 2, track adjusting wheel 6, drive wheel 7, tension wheel 8 and driving band 4 are positioned on the vertical side of a casing or frame 16; It can freely pivot on casing or frame 16 by pivotal joint respectively for fork 2, track adjusting wheel 6, drive wheel 7, tension wheel 8, and the upper limit device 15 of corresponding fork 2 is arranged on casing or the frame 16.
In preferred embodiment of the present invention, like Fig. 1, shown in Figure 2, the axle center of track adjusting wheel 6, drive wheel 7, tension wheel 8 is triangularly arranged, and fork 2 is positioned at this leg-of-mutton below.
Comprise aforesaid driver train at the embodiment of tube coiling appts of the present invention or cable coiling device, casing or frame 16 can be arranged to coat the form of rolling wheel 17, track adjusting wheel 6, drive wheel 7, tension wheel 8 and driving band 4, leave the opening that supplies swing fork 2.
Below in conjunction with Fig. 1 to Fig. 5, most preferred embodiment of the present invention is described.
Inhibiting device 15 (for limiting stopper 15) is fixed on casing or frame 16 1 fixed parts; Be used for carrying out spacing to the motion of fork 2 (for stepping on fork 2); Stepping on fork 2 is fixed on the fixed part of casing or frame 16 pivotly through countershaft 3; And can at a free end of stepping on fork 2 one pedal 1 be installed around the axis swing of countershaft 3, make things convenient for the human foot to apply power to stepping on fork.Track adjusting wheel 6 cylindricals are provided with the shape that matches with driving band 4 (for polywedge bet 4), and track adjusting wheel 6 is fixedly installed in one and is fixed on the countershaft 14 of a fixed part of casing or frame 16.Drive wheel 7 cylindricals are provided with the shape that matches with polywedge bet 4; Drive wheel 7 is coaxial is installed with free-wheel clutch 12; Drive wheel 7 is coaxially installed on the main shaft 11 of a fixed part that is fixed in casing or frame 16, and main shaft 11 can be around its rotational, and main shaft 11 is captiveed joint with reeling pipe wheel 17; Tension wheel 8 cylindricals are provided with the shape that matches with polywedge bet 4; Tension wheel 8 is coaxially installed on one and is fixed on the countershaft 10 of a fixed part of casing or frame 16, and tension wheel 8 can be around the rotational of countershaft 10, and one of retracing spring 9 (being wind spring 9) is captiveed joint with countershaft 10; Captive joint with the groove 13 (as shown in Figure 4) on tension wheel 8 inner peripheral surfaces in the other end; 4 one of polywedge bets are captiveed joint with the A place of stepping on fork 2, captive joint with tension wheel 8 for other one, and are middle through track adjusting wheel 6 and drive wheel 7; Polywedge bet 4 upper inner surfaces are placed with equidistantly vertical 40 ° of trapezoidal wedges 5.
In this structure, free-wheel clutch 12 is but is not limited to a needle roller free-wheel clutch that certainly, the concrete structure that reaches free-wheel clutch still is a lot.
When pulling out pipe or rope, reeling pipe wheel 17 clockwise rotates, and drives main shaft 11 and clockwise rotates; At this moment, free-wheel clutch 12 is in coupled condition, under the effect of free-wheel clutch 12; Drive wheel 7 clockwise rotates, because foot-operated power does not apply up, tension wheel 8 is in initial position; The tension force of tension wheel 8 is less, the friction force between polywedge bet 4 and the drive wheel 7 a little less than, slide relative between polywedge bet 4 and the drive wheel 7; At this moment, track adjusting wheel 6 is not rotated with tension wheel 8, steps on fork 2 and is in reference position B.
When pressing down pedal 1 toward the C position, step on fork 2 drive polywedge bets 4 and move downward, under the drive of polywedge bet 4; Track adjusting wheel 6 is around its countershaft 14 left-hand revolutions, and polywedge bet 4 reaches under the combined action of foot-operated power at the tension force of tension wheel 8, and the friction force between polywedge bet 4 and the drive wheel 7 increases greatly; Drive wheel 7 is around its main shaft 11 left-hand revolutions thereby polywedge bet 4 drive drive wheels 7 rotate counterclockwise (main purpose that adopts polywedge bet is under the condition of identical bandwidth to increase frictional area), and at this moment, free-wheel clutch 12 is in coupled condition; Thereby drive main shaft 11 left-hand revolutions, main shaft 11 drives reeling pipe wheel 17 left-hand revolutions, thereby reaches the purpose of retractable hose; Tension wheel 8 is around its countershaft 10 clickwises; Thereby drive an end clickwise of wind spring 9, at this moment, wind spring 9 storage energy.
When decontroling pedal 1, wind spring 9 releases energy, and tension wheel 8 is around its countershaft 10 left-hand revolutions, thus drive polywedge bet 4 left-hand revolutions; Under the effect of polywedge bet 4, drive wheel 7 clickwises, at this moment; Free-wheel clutch 12 is in released state, and main shaft 11 remains static, and track adjusting wheel 6 clockwise rotates around its countershaft 14 respectively; Step on fork 2 under the effect of polywedge bet 4, move to the B direction by C, thereby reach reset function.
Like Fig. 1, Fig. 2, Fig. 6, shown in Figure 7, in preferred embodiment of the present invention, driver train also comprises ratchet 21, ratchet 20, extension spring 19 and cam 23.Cam 23 also is contained on the axle 10, and is fixed on a side of tension wheel 8.Ratchet 21 also is contained on the axle 11, and is fixed on a side of drive wheel 7.Cam 23 can be the split part with tension wheel 8, also can be integral piece.Ratchet 21 is split parts with drive wheel 7.Ratchet 20 is contained on the axle 18, is that fulcrum can rotate with axle 18.One end of ratchet 20 is connected with spring 19; Spring 19 is installed on the axle 22, and axle 22 is to be fixed on casing or the frame 16, spring 19 can but to be not limited to be extension spring; Spring 19 is applied with spring force on ratchet 20, so that ratchet 20 can turn to the position that is meshed with ratchet 21.Initial position (being the position that fork 2 is in the top); The profile of cam 23 and ratchet 20 contact; Deflect into the position that breaks away from ratchet 21 so that ratchet 20 overcomes the spring force of spring 19, this moment, rolling wheel 17 can clockwise rotate, and the flexible pipe on the rolling wheel 17 can be drawn out.When the fork 2 past bottoms; Driving band 4 drives drive wheel 7 and rotates counterclockwise, and drive wheel 7 is also done through free-wheel clutch 12 driving rolling wheels 17 and rotated counterclockwise, and tension wheel 8 clockwise rotates under the effect of driving band 4; Cam 23 and tension wheel 8 interlocks; The convex surface profile of cam 23 breaks away from ratchet 20 gradually, and ratchet 20 resets in the effect deflect of spring 19, so that ratchet 20 and ratchet 21 are by separately converting engagement into.Up return motion after fork 2 is down swung and put in place, at this moment, free-wheel clutch 12 separates; Rolling wheel 17 is in free state, can do cw and perhaps rotate counterclockwise, and clockwise rotation is not hoped to take place; This moment, the engagement of ratchet 20 and ratchet 21 can stop rolling wheel 17 to clockwise rotate; Be returned to initial position up to fork 2, this moment, cam 23 processes rotated counterclockwise, and once more ratchet 20 and ratchet 21 were backed down.
Driving band 4 between tension wheel 8 and the drive wheel 7 connects, and as shown in Figure 8 can be that incircle connects, and as shown in Figure 9 can also be that circumcircle connects, and during inscribe, driving band is bigger to the cornerite of drive wheel 7, and driving band is bigger to the power of drive wheel 7.Whether being provided with the shape that matches with polywedge bet (when driving band is polywedge bet) on the tension wheel cylindrical is to confirm according to polywedge bet and cooperating of tension wheel 8.If match with tension wheel 8 in the polywedge bet back side, then do not need on the cylindrical and the polywedge bet fit shapes.
In driver train, also be provided with limit shaft 24 to tension wheel, it is spacing to be used for the tension wheel initial position,, limit shaft 24 is the main stop gear of driver train.Spacing mode has a lot, is not limited to limit shaft tension wheel 8 carried out spacing, for example can also use limiting stopper.When fork 2 was put back initial position, there also have fork limit shaft 15 that it is carried out to be spacing, and the fork limit shaft is the secondary stop gear of driver train.When tension wheel 8 during at initial position; Because spacing by limit shaft 24, driving band 4 non-moment effects, driving band the stressed gravity that has only fork 2; Therefore the force rate that acts on the drive wheel 7 is less; The friction of driving band and drive wheel is also less, and when the flexible pipe on the rolling wheel 17 was pulled out, the friction that rolling wheel overcomes between driving band and the drive wheel was rotated.
Above embodiment only supplies to explain the present invention's usefulness; But not limitation of the present invention, the technical personnel in relevant technologies field is under the situation that does not break away from the spirit and scope of the present invention; Can also make various conversion or modification; For example wind spring 9 just can be substituted by other springs, and for example between transmission shaft and rolling wheel or drive wheel, increases gear pair and also can stop the phenomenon that the rolling wheel cw changes when receiving pipe, and gear pair can substitute the click cam; But such device can be put in order and add cost, takies bigger space.Therefore all technical schemes that are equal to also should belong within the category of the present invention, should be limited each claim, and include within the scope of claim.