CN2810144Y

CN2810144Y - Tow type grass cutting machine

Info

Publication number: CN2810144Y
Application number: CN 200420087380
Authority: CN
Inventors: 巴达日胡
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-08-02
Filing date: 2004-08-02
Publication date: 2006-08-30
Anticipated expiration: 2014-08-02

Abstract

The utility model discloses a traction type grass cutting machine, which is composed of a machine frame, a traveling wheel, a cone tooth box, a crank, a crank shaft, a swing rod, and a knife strip, wherein a driving sprocket (13) is arranged on the traveling wheel (4), the separate cone tooth box (15) is arranged on the machine frame (14), a pair of cone tooth wheels (16) which are used for altering driving direction are arranged in the separate cone tooth box (15), a pair of shaft ends which are provided with cone teeth are totally stretched out the separate cone tooth box (15), a driven small sprocket (18) is arranged on a shaft end (17), a driving big belt pulley (20) is arranged on the other shaft end (19), a shaft seat (21) is also arranged on the machine frame (14), a running down shaft (22) is arranged on the shaft seat (21), both ends of the running down shaft (22) are stretched out the shaft seat (21), one end of the running down shaft (22) is provided with a driven small belt pulley (23), the other end of the running down shaft (22) is provided with the crank, the knife strip (11) is driven to cut grass by the crank, and the crank shaft (9) is provided with a knife blade (29). Because two-stage speed increase of the driven small belt pulley (23) on the running down shaft (22) is driven by the driving big belt pulley (20) on the cone tooth box (15) is adopted by the utility model, the crank (8), the crank shaft (9), the knife strip (11), etc., on the other end of the running down shaft (22) have the highest working speed, and the full cutting rate of the grass cutting machine is higher; in addition, the cone tooth box and the machine frame are arranged singly after split, and original gear drive is changed into sprocket drive which is arranged on the traveling wheel; therefore, the weight of a complete machine is lightened and the production cost is reduced.

Description

A kind of towed mower

Technical field

The utility model relates to the animal husbandry manufacturing machine, is a kind of towed mower specifically.

Background technology

Its structural principle of towed mower that uses as shown in Figure 1 at present, be cast with angular wheel case (hereinafter to be referred as tapered gearbox) 2 on the frame 1, line shaft 3 is through at 2 of frame 1 and conical tooth roller boxs, the two ends of line shaft 3 have been equipped with the wheel 4 that travels of driving action, when the wheel 4 that travels drives line shaft 3 rotations, the auger tooth of being satisfied with on the line shaft 35 just is being with passive bevel pinion 6 to rotate, axle 7 ends of passive bevel pinion 6 are equipped with crank 8, be equipped with bent axle 9 on the crank, on bent axle 9, be with swing arm 10, the other end of fork is connected on the tool section 11, when the extension pin of tractor holds hanging hole 12 when travelling, the driving knife bar 11 that fork 10 does not just stop moves back and forth, thereby the grass between the triangular knife crack is cut off.

As seen from the figure, 6 work of bevel gear wheel 4 band bevel pinions only are the one-level speedup, and the number of times of tool section motion is not high, therefore cuttting cleaning rate is not good enough, as the complexity that tapered gearbox that fork is raised speed will become, technology cost, material cost all can rise, and the visible this pull-alongs mower that uses at present is unsatisfactory.

The purpose of this utility model provides a kind of in light weight, and consumptive material is few, and tool section moves back and forth number of times height, the towed mower that cuttting cleaning rate is higher relatively.

The purpose of this utility model is achieved through the following technical solutions.

A kind of towed plan machine, by frame, the wheel that travels, the conical tooth roller box, formations such as crank, bent axle fork, tool section are equipped with initiatively hinge wheel on the wheel that travels; On frame, be equipped with a conical tooth roller box, be provided with the angular wheel that is used to change transmission direction of a pair of coupling in the case, and two axle heads of peace bevel gear all stretch out outside the tapered gearbox, be equipped with the passive minor sprocket that mates with initiatively big chain belt wheel on one of them axle head, be equipped with initiatively big belt pulley on another axle head; Also be equipped with an axle bed on frame, be equipped with the running down axle on the axle bed, all stretch out outside the axle bed at the two ends of running down axle, and be equipped with passive small belt pulley at an end that stretches out, and is equipped with the crank bent axle of driving knife bar reciprocating motion mowing at the other end of lazy axle; Job order is: when travel wheel and drive sprocket rotate by the passive minor sprocket on the chain drive conical tooth roller box, active big belt pulley on the tapered gearbox opposite side axle head then rotates by the little negative pulley wheel that belt drives on the lazy axle, and the crank Qu Ze that at this moment is satisfied with the lazy axle other end moves back and forth by the fork driving knife bar and grass is cut down.

Certainly travel the passive minor sprocket that mates on drive sprocket and the bevel gear box on the wheel also but belt pulley and drive with belt.

In addition, also the drive bevel gear on the tapered gearbox axle can be designed to large diameter bevel gear, the minor diameter bevel gear that the bevel gear on another root axle is designed to mate, thus finish the secondary speedup.

The utlity model has following advantage:

Because of having removed the tapered gearbox with the one of frame continuous casting, and tapered gearbox is located on the frame in addition, also,, has reduced production cost so alleviated complete machine weight because will original gear drive have changed into travelling to take turns and establish sprocket wheel by chain drive.

Be the one-level speedup also because adopted hinge wheel band minor sprocket, small belt pulley on the lazy axle of big belt pulley band on the tapered gearbox is the secondary speedup, so the rotating speed of the lazy axle of final power take-off increases, so that the reciprocating number of times of fork that the lazy axle other end drives raise, thereby the cuttting cleaning rate of mower is improved.

Description of drawings

Fig. 1 is the mansion view of existing mower

Fig. 2 is front view of the present utility model (mower that the mansion is looked)

Fig. 3 is the upward view of Fig. 2

Embodiment

Below in conjunction with drawings and Examples the utility model is described in detail.

Can find out by Fig. 2 Fig. 3, on the wheel 4 that travels, be equipped with initiatively hinge wheel 13, on frame 14, be equipped with an independent tapered gearbox 15, be provided with the awl tooth 16 that is used to change transmission direction of a pair of coupling in the tapered gearbox, be extended with two axle heads on the tapered gearbox 15, be equipped with passive minor sprocket 18 on the axle head 17, be equipped with initiatively big belt pulley 20 on the axle head 19, on frame 14, also be equipped with an axle bed 21, be equipped with running down axle 22 on the axle bed 21, all stretch out outside the axle bed 21 at the two ends of lazy axle, and an end is equipped with passive small belt pulley 23, the other end of lazy axle 22 is equipped with crank 8, bent axle 9 is arranged on crank 8, be with fork 10 on the bent axle, the other end of fork constitutes movable the connection with tool section 11.When tractor is leading frame hole 12 when travelling, the wheel 4 that travels just rotates, at this moment the active hinge wheel 13 of taking turns on 4 of being satisfied with to travel is just rotated by the passive minor sprocket 18 that chain 28 drives on the tapered gearboxs 15, the active big belt pulley 20 of tapered gearbox 15 opposite sides just drives passive small belt pulley 23 rotations on the axle bed 21 lazy axles 22 simultaneously, make lazy axle 22 obtain the two-stage speedup, be satisfied with the crank 8 of the lazy axle other end, bent axle 9 is high speed rotating just.Thereby the tool section 11 that drives fork 10 and be connected on the fork is done reciprocating type high speed swinging, at this moment just will comb pugil in blade 29 cracks and scoop up grass and cut down.

Certainly initiatively also pulley concial disk of hinge wheel 13 and passive minor sprocket 18, and by the V-belt transmission.

The mode of finishing the secondary speedup in addition is not limited only to the big belt pulley 20 shown in Fig. 2 and drives passive small belt pulley 23, also can in tapered gearbox 15, finish the secondary speedup, exactly the bevel gear on the driven axle 17 is designed to large diameter bevel gear, the awl tooth of another coupling on 19 is designed to the bevel gear of minor diameter.

Claims

1, a kind of towed mower, by frame, the wheel that travels, the conical tooth roller box, crank, bent axle, fork, formations such as tool section is characterized in that, are equipped with initiatively hinge wheel (13) on the wheel (4) that travels; On frame (14), be equipped with a conical tooth roller box (15), be provided with the angular wheel that is used to change transmission direction (16) of a pair of coupling in the case, two axle heads of peace angular wheel are all stretched outside tapered gearbox (15), be equipped with in the passive minor sprocket (18) of active hinge wheel (13) coupling on one of them axle (17) end, be equipped with initiatively big belt pulley (20) on another axle (19) end; On frame (14), also be equipped with an axle bed (21), be equipped with running down axle (22) on the axle bed (21), all stretch out outside the axle bed (21) at the two ends of running down axle (22), and the end at projecting shaft is equipped with the passive small belt pulley (23) that mates with big belt pulley (20), is equipped with crank (8) bent axle (9) of driving knife bar (11) motion at an other end of lazy axle (22).

2, towed mower according to claim 1 is characterized in that, can be belt pulley by movable sprocket (18) and use belt transmission on the drive sprocket (13) on the wheel (4) that travels and the tapered gearbox (15).

3, towed mower according to claim 1 is characterized in that, the bevel gear on described tapered gearbox (15) driven axle (17) is large diameter bevel gear, with the angular wheel (16) of another axle on (19) of its coupling be the bevel gear of minor diameter.