CN2642021Y

CN2642021Y - Reciprocating hay cutter

Info

Publication number: CN2642021Y
Application number: CN 03272598
Authority: CN
Inventors: 努尔兰
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-06-20
Filing date: 2003-06-20
Publication date: 2004-09-22
Anticipated expiration: 2013-06-20

Abstract

The utility model discloses a reciprocating grass cutter. A drag rod and a lifting mechanism connected with a cutter immovably are provided respectively on a rack, the cutter is composed of a static knife rack with horizontal knife edge and a dynamic knife rack respectively, a slide groove is arranged on a static knife rack along the axial direction, and a guide rail is arranged on a dynamic knife rack, the guide rail is matched and provided inside the sliding groove; a driving rotating shaft with one end provided with a driving wheel are arranged horizontally on the top surface of the rack, the other end of the driving shaft is provided vertically with a driven rotating shaft inside the rack through the auxiliary drive of a bevel gear, the lower end of the driven rotating shaft is arranged with a level crank which is connected with a connection rod, between the other end of the connection rod and the inner side of the dynamic knife rack, a rotatable connection is formed. The utility model omits components such as a gearbox, a clutch, a crank connection rod mechanism, etc, so as to enable the cutter have simpler structure, when cutting grass, only the dynamic knife rack moves, the static knife rack keeps unmoved, thereby the structure is simplified, the mechanism malfunction is reduced, and the maintenance cost is lowered, thus, the utility model can be easily popularized.

Description

Shuttle low mower

Technical field

The utility model belongs to the improvement of mower, particularly shuttle low mower.

Background technology

People have developed mower miscellaneous, so that replace hand labor to make peasants and herdsmen can increase work efficiency, reduce labor intensity when mowing with machinery.As Granted publication number is the disclosed a kind of mower of Chinese utility model patent specification of CN2161053Y, it is made up of frame, hitch frame, power source, cutter and hoisting mechanism, power source drives gearbox through clutch, be equipped with two toggles on the output shaft of gearbox, two the cover connecting rods on respectively Guan County upper and lower moving teeth cutter blade is arranged, drive upper and lower moving teeth cutter blade respectively during two cover connecting rod motions and move back and forth mowing along the cutter holder intersection, cutter holder is hinged on the frame.Its weak point is owing to having two toggles to be housed on gearbox and clutch and the output shaft of gear-box, all in motion, causes its complex structure when upper and lower in addition moving teeth cutter blade is mowed, and there was a mechanical failure easily, the maintenance cost height.

Summary of the invention

The purpose of this utility model is to provide a kind of shuttle low mower, and is not only simple in structure, and fault rate is low, easy care.

The purpose of this utility model is achieved in that a kind of shuttle low mower, comprise frame, the hoisting mechanism that draw bar is housed respectively and is connected with cutter on the frame, cutter is made up of static knife rack that has horizontal knife respectively and movable knife rack, it axially is provided with chute the static knife rack upper edge, movable knife rack is provided with guide rail, and the guide rail cooperation is installed in the chute; On the end face of frame, be horizontally disposed with the active rotating shaft that an end is equipped with drive, the other end of active rotating shaft vertically is contained in driven spindle in the frame by the bevel gear pair transmission, the lower end of driven spindle is provided with horizontal crank, horizontal crank is connecting connecting rod, forms between the other end of connecting rod and the medial extremity of movable knife rack to be rotatably connected.

The utility model in use, by the draw bar that is contained in the frame front end frame is connected with dynamic power machines such as tractors, dynamic power machine rotates the drive that is contained on the frame end face by belt, drive the horizontal loop motion of handle that is contained in the driven spindle lower end through active rotating shaft, horizontal crank drives the movable knife rack that is contained on the static knife rack by connecting rod and moves back and forth, along with moving ahead of dynamic power machine, the blade between movable knife rack and the static knife rack just can be mowed.The utility model has saved parts such as gearbox, clutch and drag link, makes the cutter structure simpler, has only the movable knife rack motion during mowing, it is motionless that static knife rack keeps, thereby simplify the structure, and reduced mechanical breakdown, reduced maintenance cost, be easy to promote.

Description of drawings

Fig. 1 removes the main TV structure schematic diagram of frame front panel for the utility model, Fig. 2 removes the side-looking structural representation of frame side panel for the utility model, Fig. 3 removes the plan structure schematic diagram of frame top panel for the utility model, and Fig. 4 is along the cross-sectional structure schematic diagram of A-A line among Fig. 3.

Embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail, a kind of shuttle low mower, as Fig. 1, Fig. 2, shown in Figure 3, comprise that its front end is equipped with frame 1, cutter and the hoisting mechanism of draw bar 2, the front end of frame 1 also is provided with the elevating mechanism of regulating frame 1 lifting by the rotation of nut frame 3.Be provided with the strip slide plate 5 that two ends are upturned in the bottom near frame 1 side of cutter, during work, slide plate 5 lands, and plays the effect of supplemental support cutter and frame 1.

As shown in Figure 3, Figure 4, cutter is made up of static knife rack 9 that has horizontal knife respectively and movable knife rack 13, outboard end at static knife rack 9 is provided with baffle plate 10, is provided with the effect of playing the grass gathering that will cut with baffle plate 12, two baffle plates of baffle plate 10 positioned opposite in the side of frame 1.The side of static knife rack 9 is uniform to be provided with quiet blade 6, and the side of movable knife rack 13 is provided with the moving knife sword 7 with quiet blade 6 cooperatings.As shown in Figure 4, it axially is provided with chute in static knife rack 9 upper edges, and movable knife rack 13 is provided with guide rail, and guide rail cooperates and to be contained in the chute, perhaps on static knife rack 9 natural pond its guide rail axially is set, the chute that relative set and described guide rail are slidingly matched on movable knife rack 13.Described chute can be swallow tail shaped slot, rectangular channel or T-slot, and guide rail cross section corresponding and that chute is slidingly matched also is rectangle, swallow-tail form or is T shape.Static knife rack 9 is provided with the pressing plate 8 that is used for compressing movable knife rack 13, regulates the pressure of pressing plate 8, just can regulate the gap between moving knife sword 7 and the quiet blade 6, thereby controls the sharpness of two blades when mowing.

As Fig. 1, Fig. 2, shown in Figure 3, fixedly connected with hoisting mechanism in the rear end that is hinged on the static knife rack 9 on the frame 1, the steel wire tightening device that hoisting mechanism comprises fork 15 and is hinged on fork 15 upper ends, the steel wire tightening device is made up of the nut frame 17 of steel wire rope 16 and flexible connection with it, cooperates the other end of the bolt of installing to be hinged on the frame 1 with nut frame 17; One side of static knife rack 9 medial ends of close frame 1 is hinged on the side plate of frame 1, and another side is fixedlyed connected with the lower end of fork 15, and the bottom of fork 15 is hinged on another side plate of frame 1 by bolt 14.As Fig. 1, shown in Figure 3, static knife rack 9 is provided with through hole 11, is provided with bolt 19 in the side of frame 1, and bolt 19 matches with through hole 11.Swivel nut frame 17 can tighten up steel wire rope 16, thereby then with fork 15 pulling pull-up cutters, when cutter arrives vertical position, bolt 19 just passes from through hole 11, bolt 19 is fixed on vertical position with static knife rack 9, be convenient to when not mowing, mower can conveniently be walked, and is safe and reliable.

As Fig. 1, Fig. 2, shown in Figure 3, on the end face of frame 1, be horizontally disposed with the active rotating shaft that an end is equipped with drive 20, the other end of active rotating shaft vertically is contained in driven spindle 23 in the frame 1 by 21,22 transmissions of bevel gear kinematic pair, the lower end of driven spindle 23 is set with horizontal crank 18, horizontal crank 18 is connecting connecting rod 4 by bearing, connecting rod 4 is broken line shape, to adapt to the difference in height between movable knife rack 13 and the driven spindle 23, be rotatably connected by Hooks coupling universal coupling or self-aligning ball bearing formation between the medial extremity of the other end of connecting rod 4 and movable knife rack 13.

During use, by the draw bar 2 that is contained in frame 1 front end frame 1 is connected with dynamic power machines such as tractors, dynamic power machine is contained in drive 20 on frame 1 end face by belt transmission, drive the horizontal crank 18 that is contained in driven spindle 23 lower ends through active rotating shaft and do gyration, horizontal crank 18 drives the movable knife rack 13 that is contained on the static knife rack 9 by connecting rod 4 and moves back and forth, along with moving ahead of dynamic power machine, the cutting edge 7,6 between movable knife rack 13 and the static knife rack 9 just can be mowed.

Claims

1. shuttle low mower, comprise frame (1), the hoisting mechanism that draw bar (2) is housed respectively on the frame (1) and is connected with cutter, it is characterized in that: cutter is made up of static knife rack that has horizontal knife respectively (9) and movable knife rack (13), it axially is provided with chute static knife rack (9) upper edge, movable knife rack (13) is provided with guide rail, and the guide rail cooperation is installed in the chute; On the end face of frame (1), be horizontally disposed with the active rotating shaft that an end is equipped with drive (20), the other end of active rotating shaft vertically is contained in the interior driven spindle (23) of frame (1) by bevel gear pair (21,22) transmission, the lower end of driven spindle (23) is provided with horizontal crank (18), horizontal crank (18) is connecting connecting rod (4), forms between the medial extremity of the other end of connecting rod (4) and movable knife rack (13) to be rotatably connected.

2. shuttle low mower according to claim 1, it is characterized in that: the steel wire tightening device that hoisting mechanism comprises fork (15) and is hinged on fork (15) upper end, the steel wire tightening device is made up of the nut frame (17) of steel wire rope (16) and flexible connection with it, cooperates the other end of the bolt of installing to be hinged on the frame (1) with nut frame (17); One side of static knife rack (9) medial end of close frame (1) is hinged on the side plate of frame (1), and another side is fixedlyed connected with the lower end of fork (15), and the bottom of fork (15) is hinged on another side plate of frame (1) by bolt (14).

3. shuttle low mower according to claim 1 is characterized in that: described chute is swallow tail shaped slot, rectangular channel or T-slot, and the guide rail cross section that is slidingly matched with chute also is swallow-tail form, rectangle or is T shape.

4. shuttle low mower according to claim 1 is characterized in that: link to each other by Hooks coupling universal coupling or self-aligning ball bearing between the other end of connecting rod (4) and the medial extremity of movable knife rack (13).

5. shuttle low mower according to claim 1 is characterized in that: be provided with the strip slide plate (5) that two ends are upturned in the bottom near frame (1) side of cutter.

6. shuttle low mower according to claim 1 is characterized in that: static knife rack (9) is provided with through hole (11), is provided with bolt (19) in the side of frame (1), and bolt (19) matches with through hole (11).