CN2786940Y

CN2786940Y - Rear-mounted mower

Info

Publication number: CN2786940Y
Application number: CN 200520017444
Authority: CN
Inventors: 兰玉民
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-20
Filing date: 2005-04-20
Publication date: 2006-06-14
Anticipated expiration: 2015-04-20

Abstract

The utility model discloses a rear-mounted mower, which comprises a machine frame, a speed changing drive mechanism, a cutting part, and a grass collecting part, wherein a cutting knife is driven by the speed changing drive mechanism through a gear-box, a driving shaft, and a crank connecting rod, the cutting part is fixed on one side of the machine frame by a connecting shaft, a pull rod is also fixed on the side of the machine frame, the cutting part comprises the cutting knife and a movable knife frame, the grass collecting part comprises a fixing frame, a spring teeth frame, spring teeth, and a spring teeth lifting mechanism, the fixing frame is installed on the rear part of the machine frame and the spring teeth frame is connected with the fixing frame by a pin shaft. The utility model has the advantages of compact integral structure, small machine body, low cost, and high work efficiency; furthermore, the utility model is particularly suitable for grass cutting operation of extensive pasturing area grassland and grassland with complicated landform, and the utility model is suitable to be matched with herdsmen who have small scale of cultivation and few grassland and users who have four-wheel tractors each and every.

Description

Rearmounted mower

Technical field

The utility model relates to a kind of harvesting machinery, especially relates to a kind of rearmounted mower that uses with four-wheel tractor.

Background technology

The mower of prior art is divided into drawn mower and direct-connected mower according to the connected mode with tractor, and direct-connected mower comprises that forward mounting mower, back hang three kinds of mower and side mounting mowers.The most complex structure of drawn mower, the body heaviness is drawn longly, uses dumbly, generally all needs two people to operate just and can finish cutting operation.The suspension type grass harvester does not generally all collect careless function, also needs to join in addition to hug careless equipment or manually hug grass the herbage of cutting off is concentrated, and mechanization degree is low, the waste labour.

The utility model content

The purpose of this utility model is according to the pastoral area actual demand, provides a kind of and small portable grass harvester four-wheel tractor, and it has mowing and collects careless function, and simple in structure, cheap, easy to operate.

The purpose of this utility model is achieved in that it comprises frame, variable transmission mechanism, cutting part and collection grass part, it is characterized in that: described variable transmission mechanism is that gearbox is installed on frame, clutch is installed on the gearbox, the power intake of gearbox is connected with tractor dynamic power, the clutch end of gearbox is connected with crank connecting link by power transmission shaft, and crank connecting link connects cutter; Described cutting part comprises cutter and movable carriage, and movable carriage is fixed on a side of frame by connecting axle and pull bar, and cutter is installed on the movable carriage, and described movable carriage has cutter lift and angle adjusting mechanism; Described collection grass part comprises fixed mount, elastic claw frame, elastic claw and elastic claw lift, and fixed mount is installed in the frame rear portion, is connected by bearing pin between fixed mount and the elastic claw frame.

Can adopt belt, chain or gear drive to be connected between the clutch end of gearbox and the power transmission shaft.When adopting belt transmission to connect, loosening in order to prevent belt, a pinch roller preferably is installed between two belt pulleys.

The cutter lift of described movable carriage is that a rotating shaft laterally is installed on frame, be fulcrum with the rotating shaft and a power arm and a resistance arm are installed in rotating shaft, power arm is connected with tractor oil pressure lifting arm with fixed pulley by steel wire rope, and resistance arm is connected with the lever that rises and falls of movable carriage by steel wire rope or pull bar.

The angle adjusting mechanism of described movable carriage is that the pull bar that is fixed on an adjustable length on the frame is connected with the angular adjustment bar of movable carriage.

The elastic claw lift of described collection grass part is that a rotating shaft is installed on frame, equidirectional is equipped with toggle at the two ends of rotating shaft, inboard toggle is connected with the elastic claw frame with elastic draw bar by bearing pin, the outer toggle of surveying connects the stock hook by bearing pin, lever elasticity control lever also is installed on frame, this control lever comprises a rotating shaft that is fixed on the frame, a handle and a control lever are installed in rotating shaft, the other end of control lever has bearing pin, bearing pin is installed in the chute on the stock hook, in the tractor trailing wheel outside, position that the stock hook is corresponding the annulus that has three or four bearing pins is installed, bearing pin is evenly distributed on annulus.

Advantage of the present utility model is: rearmounted mower of the present utility model mainly is to use with four-wheel tractor, during use with the integral installation of this mower on the back axle of four-wheel tractor afterbody, the power intake of mower can directly be connected with tractor dynamic power, does not need to join in addition engine.The careless controlling organization that partly all rises and falls of mowing part of the present utility model and collection, tractor driver need not get off, whole operation process that a people just can finish and hang the mower walking, mow and collection is careless, and especially the design of elastic claw lift is ingenious, simple and practical, the control elastic claw rises and falls convenient and strength-saving.The utility model compact overall structure, fuselage is little, and cost is low, high efficiency, be particularly suitable for vast grassland, pastoral area and meadow cutting operation with a varied topography, suitable present herdsman cultures small scale, the meadow is few, and there is the supporting use of the user of four-wheel tractor in single household.

Description of drawings

The utility model is described in more detail below in conjunction with the described specific embodiment of accompanying drawing.

Fig. 1 is the utility model rearmounted mower overall structure schematic diagram.

Fig. 2 is the utility model variable transmission mechanism structural representation.

Fig. 3 is the utility model cutting part structural representation.

Fig. 4 is the utility model collection grass part-structure schematic diagram.

Embodiment

Referring to Fig. 1, Fig. 1 shows the utility model rearmounted mower overall structure schematic diagram, and it comprises frame, variable transmission mechanism, cutting part and collection grass part.Fig. 2 shows the utility model variable transmission mechanism and installation site structural representation on frame, described variable transmission mechanism is that gearbox 2 is installed on frame 1, clutch 3 is installed on the gearbox 2, the power intake of gearbox 2 is belt pulleys 4, this belt pulley 4 can be connected with tractor dynamic power, the clutch end of gearbox 2 also is a belt pulley 5, this belt pulley 5 is connected with belt pulley 8 on the power transmission shaft 7 by belt 6, power transmission shaft 7 is by two

bearings

9,10 are fixed on the frame 1, a crank 11 is installed in the rear end of power transmission shaft 7, a batten connecting rod 12 is installed on the crank 11, and batten connecting rod 12 connects cutter 13.

Fig. 3 shows the utility model cutting part and installation site structural representation on frame, described cutting part comprises cutter 13 and movable carriage 14, movable carriage 14 is fixed on a side of frame 1 by connecting axle 15 and pull bar 16, cutter 13 is installed on the movable carriage 14, and movable carriage 14 has cutter lift and angle adjusting mechanism.The cutter lift of movable carriage 14 is that a rotating shaft 17 laterally is installed on frame 1, be fulcrum and a power arm 18 and a resistance arm 19 are installed in rotating shaft 17 with rotating shaft 17, power arm 18 is connected with tractor oil pressure lifting arm with two fixed pulleys 21,22 by steel wire rope 20, and resistance arm 19 is connected with the lever 24 that rises and falls of movable carriage 14 by pull bar 23.The angle adjusting mechanism of movable carriage 14 is that the pull bar 25 that is fixed on an adjustable length on the frame 1 is connected with the angular adjustment bar 26 of movable carriage.

Fig. 4 shows the utility model collection grass part and installation site structural representation on frame, described collection grass part comprises fixed mount 27, elastic claw frame 28, elastic claw 29 and elastic claw lift, fixed mount 27 is installed in frame 1 rear portion, is connected by bearing pin between fixed mount 27 and the elastic claw frame 28.The elastic claw lift of described collection grass part is that a rotating shaft 30 is installed on frame 1, equidirectional is equipped with toggle 31 at the two ends of rotating

shaft

30,33, inboard toggle 31 is connected with elastic claw frame 28 with elastic draw bar 32 by bearing pin, the outer toggle 33 of surveying connects stock hook 34 by bearing pin, lever elasticity control lever also is installed on frame 1, this control lever comprises a rotating shaft 35 that is fixed on the frame, one end of rotating shaft 35 is installed handle 36, the other end is installed control lever 37, the other end of control lever 37 has bearing pin 38, bearing pin 38 is installed in the chute 39 on the stock hook 34, in the corresponding tractor trailing wheel outside, position of stock hook, it is evenly distributed on annulus 40 that installation has 40, three bearing pins of annulus of three bearing pins.

Main and the four-wheel tractor use of the utility model, the frame 1 of the utility model rearmounted mower to be installed on the back axle of tractor in use, also fix in case of necessity with pull bar and tractor, the steel wire rope 20 of cutter 13 lifts is connected on the tractor oil pressure lifting arm, the annulus 40 that will have three bearing pins is fixed on the tractor trailing wheel, and the tractor engine belt pulley is connected with the belt pulley 4 usefulness belts of gearbox power intake.Adjust each parts connection angle and relative position,, adjust cutter 13 elevations angle, even if tractor and rearmounted mower have connected so especially according to herbage type and topographic features.

When non-job state tractor is walked, the elastic claw 29 of collection grass part is lifted and locks, handle tractor oil pressure lifting arm pulling steel wire rope 20, cutter 13 is lifted by lever principle, whole rearmounted mower is suspended on the rear portion of tractor, at this moment just can sets out on a journey and walk.

When carrying out cutting operation, the elastic claw 29 of collection grass part is put down, handle tractor oil pressure lifting arm cutter 13 is fallen, starting tractor just can cutting operation.Tractor is in the process of advancing, and engine passes through gearbox 2 decelerations, drives power transmission shaft 7 and crank 11 rotations, and the batten connecting rod 12 on the crank 11 moves reciprocatingly and drives cutter 13 reciprocating motion realization cutting operations.Tractor is in cutting operation, also collect careless operation, when the grass collection below the elastic claw 29 is full, handle 36 on tractor driver's actuating linkage formula elasticity control lever, stock is linked up with on some bearing pins that 39 front ends are hooked in annulus 40, along with wheel rotates pulling stock hook 39, thereby pulling elastic draw bar 32 lifts elastic claw 29 and lays down herbage, after wheel is rotated further certain angle, by the another one bearing pin stock is linked up with 39 jack-up decoupling devices, under the effect of elasticity control lever stock hook 29 is lifted, elastic claw falls under action of gravity and continues the collection grass, so just finishes and once unloads careless operation.

Claims

1, a kind of rearmounted mower, it comprises frame, variable transmission mechanism, cutting part and collection grass part, it is characterized in that: described variable transmission mechanism is that gearbox (2) is installed on frame (1), clutch (3) is installed on the gearbox (2), the power intake of gearbox (2) is connected with tractor dynamic power, the clutch end of gearbox is connected with crank (11) connecting rod (12) by power transmission shaft (7), and crank (11) connecting rod (12) connects cutter (13); Described cutting part comprises cutter (13) and movable carriage (14), movable carriage (14) is fixed on a side of frame (1) by connecting axle (15) and pull bar (16), cutter (13) is installed on the movable carriage (14), and described movable carriage (14) has cutter (13) lift and angle adjusting mechanism; Described collection grass part comprises fixed mount (27), elastic claw frame (28), elastic claw (29) and elastic claw lift, and fixed mount (27) is installed in frame (1) rear portion, is connected by bearing pin between fixed mount (27) and the elastic claw frame (28).

2, rearmounted mower according to claim 1 is characterized in that: adopt belt (6), chain or gear drive to be connected between the clutch end of described gearbox (2) and the power transmission shaft (7).

3, rearmounted mower according to claim 1, it is characterized in that: cutter (13) lift of described movable carriage (14) is to go up in frame (1) rotating shaft (17) laterally is installed, be fulcrum and a power arm (18) and a resistance arm (19) are installed in rotating shaft (17) with rotating shaft (17), power arm (18) is connected with tractor oil pressure lifting arm with fixed pulley (21,22) by steel wire rope (20), and resistance arm (19) is connected with the lever that rises and falls (24) of movable carriage (14) by steel wire rope or pull bar (23).

4, according to claim 1 or 3 described rearmounted mowers, it is characterized in that: the angle adjusting mechanism of described movable carriage (14) is that the pull bar (25) that is fixed on the last adjustable length of frame (1) is connected with the angular adjustment bar (26) of movable carriage (14).

5, according to claim 1 or 3 described rearmounted mowers, it is characterized in that: the elastic claw lift of described collection grass part is to go up in frame (1) rotating shaft (30) is installed, two ends equidirectional in rotating shaft (30) is equipped with toggle (31,33), inboard toggle (31) is connected with elastic claw frame (28) with elastic draw bar (32) by bearing pin, outside toggle (33) connects stock hook (34) by bearing pin, lever elasticity control lever also is installed on frame, this control lever comprises a rotating shaft (35) that is fixed on the frame (1), go up an installation handle (36) and a control lever (37) in rotating shaft (35), the other end of control lever (37) has bearing pin (38), bearing pin (38) is installed in the chute (39) on the stock hook (34), in the corresponding tractor trailing wheel outside, position of stock hook (39), installation has the annulus (40) of three or four bearing pins, and bearing pin is evenly distributed on annulus.