CN2133128Y - Mower - Google Patents

Abstract

The utility model discloses a mower which is composed of an actuating unit, a changeover speed gear, a hydraulic unit, a front knife frame, a left knife frame, and a right knife frame. A tractor is adopted as motive power; in order to satisfy the fluid driving requirements of cutting, rising and falling, and locking of the three groups of the knife frames, three independent hydraulic oil circuits are established by driving the three oil pumps through stick control; the swivel motion of the oil motor is changed into the reciprocating shearing motion on the knife tackle. The utility model has the advantages of compact structure, reasonable layout, convenient operation and high reliability. The three groups of knife frames can be arbitrarily selected, the shearing and cutting force is strong, and the cutting area is broad. An advanced tool is provided for maintaining the sod in the airport.

Description

Mower

The utility model relates to lawn vegetation mowing machinery.

Mower is to be security force's flight safety, the necessary important equipment of maintenance airport lawn vegetation.Soviet Union's formula mower in the known technology and the mower of introducing from pastoral area, Inner Mongol machinery plant, all be mechanically operated, because structural defective, not only be unwell to southern airport grass by high, luxuriant, close, thick and accident of terrain, the wealthy narrow complex work environment that differs, do not reach due result of use, and the lifting of knife rest is not just can realize, so very hard by simple stick control, and the main frame deviation phenomenon is arranged, increase driver's labour intensity on foot.

The purpose of this utility model is to avoid the defective of prior art and provides a kind of compact conformation, rationally distributed, use is simple to operation, the mowing performance is safe and reliable hydraulically powered mower to society.

This mower adopts hydraulic drive, drives cutting, lifting and the locking of each cutter group respectively, thus the operator in driving as long as the relevant handle of operation can be realized cutting, ascending, descending and the locking of knife rest.It with tractor as power resources, export from gearbox left end output shaft T, import transmission case through two belt wheels, belt transmission from the axle I, fuel tank is fixed on the installed surface on the tractor rear axle, the output of transmission case connects the hydraulic mechanism in the fuel tank, independently three hydraulic circuit work separately of driving are made cutting, lifting, decline, locking action thereby drive the left and right side knife rest that is hinged on fuel tank left and right side bottom with the front rest that is connected on the tractor bumper.

The utility model is compared with known technology, and its adopts the action of hydraulic-driven knife rest, has simplified frame for movement, installs three groups of knife rests, adapting to the cutting of different landforms lawn, and can select for use single group, two groups or three groups of knife rests to mow simultaneously arbitrarily.This apparatus structure compactness, rationally distributed, easy and simple to handle, the mowing performance is reliable fully.

Description of drawings.

Fig. 1 is the figure of the utility model integral structure layout.

Fig. 2 is the utility model actuating unit, transmission case, hydraulic mechanism structural representation.

Fig. 3 is the utility model front rest structural representation.

Fig. 4 is that the E of Fig. 3 is to view.

Fig. 5 is the utility model side tool post structural representation.

Fig. 6 is that the F of Fig. 5 is to view.

At above-mentioned accompanying drawing, will describe in further detail below.

From Fig. 1～6 as can be known, mower is made up of tractor (2) actuating unit, transmission case (5), hydraulic mechanism, front rest (1), left and right side knife rest (7).

Actuating unit (seeing Fig. 1-2) is power resources with " Jiangsu-150 type " 15 horsepowers of four-wheel tractors, on its gearbox left end output shaft T belt wheel (3) is housed, through V belt (4) transmission, reach the belt wheel (8) on the axle I of transmission case (5), power is exported thus.

Transmission case (5) (seeing Fig. 1-2) casing (9) can be contained in fuel tank (6) left upper portion or be contained in back axle top, the axle I is bearing in casing (9) bearing (10), on the axle I jaw clutch (12) and driving gear (11) are housed, this driving gear (11) can be meshed with the left and right sides shifting slide gear (13) on the diaxon II, shifting slide gear (13) is a duplicate gear, sky is enclosed within on the II, facewidth in left side and driving gear (11) are wide, one on right side is the big facewidth, all the time with the diaxon III on driven gear (14) engagement, guidance quality is arranged when guaranteeing the duplicate gear slippage.Have the control crank of manipulation jaw clutch (12) and two shifting slide gears (13) on the transmission case (5), thus can select as required one the road or two-way or three the tunnel output.The output on each road can both drive independently oil circuit work separately.

Hydraulic mechanism (seeing Fig. 1-2) is arranged in the fuel tank (6), fuel tank (6) is fixed on the installed surface on tractor (2) back axle, be provided with the front rest oil pump (16) that drives by the axle I in the fuel tank (6), left side by the driving of diaxon III, right side knife rest oil pump (15,17), three oil pumps are set up hydraulic mechanism separately, be provided with the overflow valve (18 that pressure regulation is used in the oil circuit, 19,20) and three six logical distributing valves (21,22,23), distributing valve simultaneously leads to front rest (1), a left side, the oil motor (30 of right side knife rest (7), 31,32), after this, produce gyration with pressure oil energy drives oil motor in the oil circuit, lead to knife rest lifting hydraulic jack (27 simultaneously, 28,29) and knife rest locking, dropout hydraulic jack (24,25,26).

The carriage saddle (36) of front rest (1) is fixedlyed connected with the bumper (37) of tractor (2), tool arm (38) and knife rest lift cylinder (28) are hinged on the carriage saddle (36) by bearing pin G, D respectively before left and right, and the piston rod (35) in the knife rest lift cylinder (28) is hinged by bearing pin C with the preceding tool arm (38) on the left side again; Before the place ahead of tool arm (38) fixing bottom knife group (39), the bottom knife group maintains static, its bottom knife is contained in and protects on the cutter device (40), protects the cutter device again on the company's of being fixed on knife plate.Oil motor (31) output axle head is equipped with crank (34), the connecting rod (42) by case (33) protection, and connecting rod and cutter group (41) are hinged by bearing pin H.The gyration of oil motor (31) just is converted into the reciprocal shearing motion of cutter group (41) by toggle, forms the relative shear campaign with fixed bottom knife group (39).

Left and right side knife rest (7) is by bearing pin K supporting, and can turn round around K, its knife rest lift cylinder (27,29) and side tool arm (44) are by bearing pin (I, L) and fuel tank (6) left and right side lower hinge, piston rod (43) in the knife rest lift cylinder (27,29) is hinged by bearing pin J and side tool arm (44), the front lower place of side tool arm is by the articulated bottom knife group of bearing pin N (39), the bottom knife of bottom knife group is contained in and protects on the cutter device (40), protects the cutter device again on the company's of being fixed on knife plate.Oil motor (30,32) output axle head is equipped with crank (34), the connecting rod (42) of case (33) protection, and connecting rod (42) is hinged by bearing pin M with cutter group (41).Equally, the gyration of oil motor (30,32) just is converted into the reciprocal shearing motion of cutter group (41) by toggle.Also be equipped with on the fuel tank (6) by the flexible alignment pin (45) of oil cylinder control, this alignment pin promotes back locking tool arm at side tool post (7) and uses, so has the locating hole (46) of grafting alignment pin (45) on the side tool arm (44).Simultaneously, between side tool arm (44) and bottom knife blade (39), be provided with and keep cutter group self-adjusting mechanism parallel to the ground, this mechanism has two little axles (47), (49) hinged with side tool arm (44), bottom knife group (39) respectively, pull bar (51) is fixed on little axle (47) and goes up and pass little axle (49), upper and lower spring (48,50) is housed on the pull bar (51), and it is fastening with nut, therefore set of blades (39) is met external force and when coming back or bowing instantly, and the compression stress by upper and lower spring (48,50) makes the cutter group recover parallel to the ground.

The architectural feature of this device is the hydraulic reciprocating type mower, by separately independently three road hydraulic mechanisms make preceding, left and right side knife rest (1), (7) obtain cutting or elevating movement, and three the tunnel separately independently hydraulic mechanism be to handle respectively by three handles in the transmission case (5) to obtain, so three groups of knife rests can be selected for use arbitrarily as required, can use single the group or two groups or three groups.Distributing valve in the hydraulic mechanism (21,22,23) has four holes, the P hole is an input hole, O leads in the hole oil motor (30,31,32) of knife rest, the A hole is led to hoist cylinder (27,28,29) respectively and is promoted a side and locking and dropout oil cylinder (24,25,26) and stretch out a side, and the B hole is led to a descend side and locking and dropout oil cylinder (24,25,26) of hoist cylinder (27,28,29) respectively and drawn in a side.Therefore after certain group oil pump starts, the oil motor that changes the cutter group is entry into service, as desire to make the cutter group to descend, can handle the distributing valve handle to prerequisite, this moment, fluid was exported by the B hole, make alignment pin (45) be pulled away from locating hole (46) on the knife rest group, the cutter group descends under the cylinder thrust effect, when dropping to the operating position, decontrol handle, distributing valve (21,22,23) promptly from horizontal reset, oil motor (30,31,32) operate as normal, on the contrary control crank is to pusher, then fluid is exported from the A hole, alignment pin (45) is pulled out and the cutter group is raised around bearing pin L revolution, insert locating hole (46) up to alignment pin (45), the cutter group just stops to promote.

This device can cut various weeds and diameter less than 10 millimeters shrub.Maximum cutting amplitude reaches 3 meters, also can select for use single group or two groups of knife rests that cutting operation is carried out in narrow area.By handling each handle, can realize the ascending, descending and the cutting of knife rest, therefore in cutting is advanced, even when running into barrier or other facility, the driver is as long as control crank just can promote knife rest, and after waiting to clear the jumps, the decline knife rest of going is again proceeded to cut.

Claims (7)

1, a kind of mower, with tractor (2) as actuating unit, belt wheel (3) from the gearbox left end output shaft T, the axle I output of belt (4) footpath, power input transmission case (5), make knife rest obtain cutting power, it is characterized in that on an installed surface of tractor (2) back axle, fixing fuel tank (6), the output of transmission case (5) connects the hydraulic mechanism in the fuel tank (6), independently three hydraulic circuit work separately of driving are hinged on fuel tank (a 6) left side thereby drive, the left side of lower right side, right side knife rest (7) and the front rest (1) that is connected on tractor (2) bumper (37) cut, promote, descend, locking action.

2, mower as claimed in claim 1, it is characterized in that described transmission case (5) comprises on the axle I that is bearing in casing (9) bearing (10), the axle I is equipped with jaw clutch (12) and driving gear (11), this driving gear (11) can be meshed with the left and right sides shifting slide gear (13) on the diaxon II, driven gear on the diaxon III (14) engagement output again, the control crank that has manipulation jaw clutch (12) and two shifting slide gears (13) on the transmission case (5), outputting power divide three the road to drive hydraulic mechanism work.

3, mower as claimed in claim 1, it is characterized in that described hydraulic mechanism comprises front rest oil pump (16), the side tool post oil pump (15,17) that is arranged in the fuel tank (6), the oil motor (30,31,32), knife rest lift cylinder (27,28,29) and the knife rest that drive each knife rest through distributing valve (21,22,23) are respectively locked and dropout oil cylinder (24,25,26), also are provided with overflow valve (18,19,20) in the oil circuit of oil pump (15,16,17) output.

4, mower as claimed in claim 1, it is characterized in that described front rest (1) has a carriage saddle (36) of fixedlying connected with tractor (2) bumper (37), tool arm (38) and knife rest lift cylinder (28) are hinged on respectively on the carriage saddle (36) before left and right, and the piston rod (35) in the knife rest lift cylinder (28) is hinged with the preceding tool arm (38) on the left side again; Bottom knife group (39) is being fixed in the place ahead of preceding tool arm (38); Oil motor (31) output axle head is equipped with crank (34), the connecting rod (42) of case (33) protection, and connecting rod (42) is hinged with cutter group (41).

5, mower as claimed in claim 1, it is characterized in that described left and right side knife rest (7) comprises knife rest lift cylinder (27,29) and the side tool arm (44) that is hinged on the fuel tank (6), piston rod (43) is hinged with side tool arm (44), the articulated bottom knife group in the front lower place of side tool arm (44) (39); Oil motor (30,32) output axle head is equipped with crank (34), the connecting rod (42) of case (33) protection, and connecting rod (42) is hinged with cutter group (41); Also be equipped with on the fuel tank (6) by the flexible alignment pin (45) of oil cylinder control, have the locating hole (46) that supplies alignment pin (45) locking to peg graft when side tool post promotes on the side tool arm (44); Between side tool arm (44) and bottom knife group (39), be equipped with and keep cutter group self-adjusting mechanism parallel to the ground.

6, as claim 4 or 5 described mowers, the bottom knife group (39) that it is characterized in that front rest (1) and side tool post (7) is by protecting cutter device (40), bottom knife, connecting knife plate and form.

7, mower as claimed in claim 5, it is characterized in that described self-adjusting mechanism comprises two little (47), (49) that are hinged on side tool arm (44) and the bottom knife group (39), pull bar (51) is fixed on little axle (47) and goes up and pass little axle (49), upper and lower spring (48), (50) are housed on the pull bar (51), and nut is fastening.

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