Pull-type tobacco field furrow opener

Abstract

The utility model relates to a pull-type tobacco field furrow opener, which belongs to the technical field of agricultural mechanical equipment, and comprises a rack, a transmission case is arranged on the rack, a transmission shaft is arranged on the transmission case, the transmission shaft is in transmission connection with a tractor, digging wheels are respectively arranged on two sides of the transmission case, the digging wheels are in transmission connection with the transmission case, and the tractor is arranged on the transmission case. And a plurality of rotary blades are arranged on the digging wheel. The transmission shaft adopts the spline sleeve and is connected with the spline shaft sleeve of the tractor in a matched mode, efficient power transmission is achieved, the device adapts to power output curves of tractors of various models, and construction efficiency is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of agricultural machinery and equipment, and particularly relates to a towed tobacco field furrow opener. BACKGROUND

[0002] In agricultural planting, the ploughing stage often needs to ensure that the farmland has a certain degree of dryness, especially for tobacco planting, which needs dry soil, in order to maintain the dry soil, ditching needs to be carried out on both sides of the tobacco ridge for drainage, so as to prevent the tobacco field from being waterlogged when it rains. The traditional tobacco field ditching mainly relies on manual excavation, which leads to high construction cost and low work efficiency. CONTENT OF THE UTILITY MODEL

[0003] In order to achieve the above purpose, the utility model adopts the technical scheme that:

[0004] A towed tobacco field furrow opener, comprising a rack, a transmission box is arranged on the rack, a transmission shaft is arranged on the transmission box, the transmission shaft is in transmission connection with a towing machine, a soil digging wheel is arranged on each side of the transmission box, the soil digging wheel is in transmission connection with the transmission box, and a plurality of rotary tillers are arranged on the soil digging wheel.

[0005] According to the further optimization of the above technical scheme, the rack comprises a suspension and a cross beam, one end of each of the two cross beams is hingedly connected with the suspension, a spacing adjusting assembly is arranged between the two cross beams, the cross beam is hingedly connected with the spacing adjusting assembly, and the soil digging wheel is connected with the cross beam through a bearing.

[0006] Preferably, a spline shaft is arranged on the rotary shaft of the soil digging wheel, a spline sleeve is arranged on the transmission box, and the spline shaft is in plug-in connection with the spline sleeve.

[0007] Preferably, the spacing adjusting assembly comprises two sets of swing arms, a pull rod and a hydraulic cylinder, one end of each of the swing arms is hingedly connected with the suspension, the other end of each of the swing arms is hingedly connected with the cross beam, one end of the pull rod is hingedly connected with the hinge shaft of the cross beam, the other end of the pull rod is fixedly connected with the base of the hydraulic cylinder, the free end of the hydraulic cylinder is hingedly connected with the suspension, and the movable end of the hydraulic cylinder moves along the extension direction of the pull rod (132).

[0008] Preferably, the spacing adjusting assembly comprises two sets of swing arms, two sets of pull rods and a flower basket nut, one end of each of the swing arms is hingedly connected with the suspension, the other end of each of the swing arms is hingedly connected with the cross beam, the other end of the cross beam is hingedly connected, the pull rod is provided with a right and left screw thread, one end of the pull rod is threadedly connected with the flower basket nut, and the other end of the pull rod is hingedly connected with the hinge shaft of the suspension and the cross beam, respectively.

[0009] Preferably, a spline sleeve is arranged on the transmission shaft.

[0010] Preferably, a ploughshare is arranged at the rear end of the digging wheel, and the ploughshare is fixedly connected with the frame.

[0011] Preferably, a dust cover is arranged on the cross beam and above the digging wheel.

[0012] Preferably, the dust cover comprises a vertical plate and a cover plate, the cover plate is an arc-shaped plate, the cover plate is fixedly connected with the vertical plate, and a folding plate is arranged on the cover plate.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1. The utility model provides a traction type tobacco field ditcher, and the transmission shaft adopts a spline sleeve, is matched with the spline shaft sleeve of a tractor, is connected in cooperation, realizes efficient power transmission, adapts to the power output curve of multiple models of tractors, and significantly improves construction efficiency.

[0015] 2. The utility model provides a traction type tobacco field ditcher, and the utility model discloses that spacing adjustment components are arranged in the device and are used for adjusting the included angle between digging wheels and adjusting the spacing between rotary blades, so that ditching with different ditch widths is realized. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a structure schematic view of the device embodiment one of the utility model;

[0017] Fig. 2 It is a side view structure schematic view of the device embodiment one of the utility model;

[0018] Fig. 3 It is a front view structure schematic view of the device embodiment one of the utility model;

[0019] Fig. 4 It is a structure schematic view of the device embodiment two of the utility model;

[0020] Fig. 5 It is a side view structure schematic view of the device embodiment two of the utility model;

[0021] Fig. 6 It is a front view structure schematic view of the device of the utility model;

[0022] Fig. 7 It is a bottom view structure schematic view of the device of the utility model.

[0023] In the drawing: 1, frame, 11, suspension, 12, cross beam, 121, dust cover, 1211, vertical plate, 1212, cover plate, 1213, folding plate, 13, spacing adjustment component, 131, swing arm, 132, pull rod, 133, flower basket nut, 134, hydraulic cylinder, 2, transmission box, 21, spline shaft, 3, digging wheel, 31, spline sleeve, 4, rotary blade, 5, transmission shaft, 6, ploughshare. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] like Figs. 1-3 As shown, this utility model provides an embodiment of a towed tobacco field ditcher, including a frame 1, a transmission box 2 on the frame 1, a transmission shaft 5 on the transmission box 2, and a towing machine connected to the transmission shaft 5. Digging wheels 3 are respectively arranged on both sides of the transmission box 2, and the digging wheels 3 are connected to the transmission box 2. Several rotary tillage blades 4 are arranged on the digging wheels 3. In this embodiment, the towing machine can be a tractor. The frame 1 is connected to the tractor's lifting suspension via a connecting component. In this embodiment, the transmission box 2 uses an internal gearbox with dual output shafts at both ends. The output shafts are connected to the digging wheels 3 to transmit the power of the towing machine to the digging wheels 3 on both sides. When the digging wheels 3 rotate at high speed, the rotary tillage blades 4 throw the soil to both sides. In this embodiment, the transmission shaft 5 and the towing machine adopt a detachable connection structure. For example, a spline sleeve is provided at the end of the transmission shaft 5, which is connected to the spline shaft by insertion. This allows for convenient and quick assembly and disassembly, and also allows adjustment of the connection distance between the transmission shaft 5 and the towing machine. The drive shaft 5 and the transmission box 2 are connected by a universal joint coupling, which allows for easy adjustment of the direction of the drive shaft 5. In this utility model device, the drive shaft uses a spline sleeve, which is matched with the spline bushing of the traction machine to achieve efficient power transmission, adapt to the power output curves of various tractor models, and significantly improve construction efficiency.

[0027] The frame 1 includes a suspension 11 and crossbeams 12. There are two sets of crossbeams 12, each with one end hinged to the suspension 11. A spacing adjustment assembly 13 is provided between the two sets of crossbeams 12. The crossbeams 12 are hinged to the spacing adjustment assembly 13. The excavator wheel 3 is connected to the crossbeams 12 via bearings. In this embodiment, the suspension 11 is a vertical rotating shaft with several pin holes for connecting to the traction machinery and the spacing adjustment assembly. In this embodiment, one crossbeam 12 has a T-shaped terminal at one end, and the other crossbeam 12 has a U-shaped seat at one end. The two crossbeams 12 are hinged together via the T-shaped terminal, the U-shaped seat, and a hinge shaft, allowing them to rotate freely around the hinge shaft.

[0028] The excavating wheel 3 is provided with a spline sleeve 31 on the rotating shaft, the transmission case 2 is provided with a spline shaft 21, and the spline sleeve 31 is connected with the spline shaft 21 in a plug-in fit. In the embodiment of the utility model, the distance between the spline sleeve 31 and the spline shaft 21 is adjustable. In the embodiment of the utility model, the spline shaft 21 is connected with the transmission case 2 through a universal joint, and the direction of the spline shaft 21 can be freely adjusted.

[0029] The distance adjusting assembly 13 comprises two sets of swing arms 131, a pull rod 132 and a hydraulic cylinder 134, one end of the swing arm 131 is hingedly connected with the suspension 11, the other end of the swing arm 131 is hingedly connected with the cross beam 12, one end of the pull rod 132 is hingedly connected with the hinge shaft of the cross beam 12, the other end of the pull rod 132 is fixedly connected with the base of the hydraulic cylinder 134, the free end of the hydraulic cylinder 134 is hingedly connected with the suspension 11, and the movable end of the hydraulic cylinder 134 moves along the extension direction of the pull rod 132. In the embodiment of the utility model, the hinge shafts at the end of the pull rod 132 connected with the swing arm 131 and the end of the cross beam 12 are hingedly connected respectively. The distance of the pull rod 132 can be adjusted through the hydraulic cylinder 134, when the distance of the pull rod 132 becomes longer, the distance between the hinge shafts at the two sides is pushed by the pull rod 132 and becomes longer, the quadrilateral formed by the swing arm 131 and the cross beam is contracted, and the included angle between the two excavating wheels 3 becomes smaller, so as to adjust the ditch width of the ditch opener; when the distance of the pull rod 132 becomes shorter, the distance between the hinge shafts at the two sides is pushed by the pull rod 132 and becomes shorter, the quadrilateral formed by the swing arm 131 and the cross beam is expanded, and the included angle between the two excavating wheels 3 becomes larger, so as to adjust the ditch width of the ditch opener. The spline sleeve of the excavating wheel 3 is plug-in connected with the spline shaft of the transmission case, the power transmission of the spline shaft is not affected, the spline shaft and the transmission case 2 are connected through a universal joint, and the direction of the spline shaft can be arbitrarily adjusted. The utility model provides a traction type tobacco field ditch opener, the utility model discloses a distance adjusting assembly, which is used for adjusting the included angle between the excavating wheels and adjusting the distance between the rotary tillers, so that the ditch opening with different ditch widths is realized.

[0030] The excavating wheel 3 is provided with a plough blade 6 at the rear end, and the plough blade 6 is fixedly connected with the frame 1.

[0031] The cross beam 12 is provided with a dust cover 121, and the dust cover 121 is arranged above the excavating wheel 3. The dust cover 121 comprises a vertical plate 1211 and a cover plate 1212, the cover plate 1212 is an arc-shaped plate, the cover plate 1212 is fixedly connected with the vertical plate 1211, and the cover plate 1212 is provided with a folding plate 1213. In the embodiment of the utility model, the dust cover 121 is arranged above the excavating wheel 3, which is used for blocking the dust generated by excavating, the folding plate 1213 is arranged in an inward folding manner, which is used for shielding the upward dust, and the excavating is along the extension direction of the folding plate 1213, so that the soil in the ditch is rotated and falls to the two sides of the ditch.

[0032] Embodiment 2

[0033] As Figs. 4-7 shown, the utility model provides a second embodiment of traction type tobacco field furrow opener, the difference of this embodiment with embodiment one is that spacing adjustment assembly structure is different, including frame 1, be equipped with transmission case 2 on frame 1, be provided with transmission shaft 5 on transmission case 2, transmission shaft 5 is connected with traction machine transmission, transmission case 2 both sides are provided with dig soil wheel 3 respectively, dig soil wheel 3 is connected with transmission case 2 transmission, be provided with a plurality of rotary tiller 4 on dig soil wheel 3.

[0034] Frame 1 includes suspension 11 and crossbeam 12, the crossbeam 12 is two groups, and one end of two groups of crossbeam 12 is respectively hinged with suspension 11, spacing adjustment assembly 13 is provided between two groups of crossbeam 12, the crossbeam 12 is hinged with spacing adjustment assembly 13, and dig soil wheel 3 is bearing connected with crossbeam 12.

[0035] The transmission shaft 5 is provided with a spline sleeve 31, and the transmission case 2 is provided with a spline shaft 21. The spline sleeve 31 is connected with the spline shaft 21 in plug-in mode.

[0036] Spacing adjustment assembly 13 includes two groups of swing arms 131, two groups of pull rods 132 and flower basket nuts 133. One end of the swing arm 131 is hinged with the suspension 11, and the other end of the swing arm 131 is hinged with the crossbeam 12. The other end of the crossbeam 12 is hinged. The pull rod 132 is provided with a positive and negative thread. One end of the pull rod 132 is screwed with the flower basket nut 133, and the other end of the pull rod 132 is hinged with the hinged shaft of the suspension 11 and the crossbeam 12. In the utility model embodiment, one end of the crossbeam 12 is hinged, the other end of the swing arm 131 is hinged, the middle crossbeam 12 is hinged with the swing arm 131, and the hinged shaft of the spacing adjustment assembly 13 is used for connecting the crossbeam 12 and the swing arm 131. The two ends of the pull rod 132 are screwed with the flower basket nut 133 through the positive and negative thread. When the spacing adjustment assembly 13 is lengthened by rotating the flower basket nut, the quadrilateral composed of the swing arm 131 and the crossbeam is contracted, the included angle between the two dig soil wheels 3 is reduced, and the ditch width of the furrow opener is adjusted. When the spacing adjustment assembly 13 is shortened by rotating the flower basket nut, the quadrilateral composed of the swing arm 131 and the crossbeam is widened, the included angle between the two dig soil wheels 3 is increased, and the ditch width of the furrow opener is adjusted. The spline sleeve of the dig soil wheel 3 is plug-in connected with the spline shaft of the transmission case, does not affect the power transmission of the spline shaft, the spline shaft and the transmission case 2 are connected through a universal coupling, and the direction of the spline shaft can be adjusted at will. The utility model provides a traction type tobacco field furrow opener, a spacing adjustment assembly is arranged in the utility model device, which is used for adjusting the included angle between the dig soil wheels and adjusting the spacing between the rotary tillers, so that the trenching needs of different ditch widths are realized.

[0037] The transmission shaft 5 is provided with a spline sleeve.

[0038] The back end of the digging wheel 3 is provided with a plough blade 6, which is fixedly connected with the frame 1.

[0039] The cross beam 12 is provided with a dust cover 121, which is arranged above the digging wheel 3.

[0040] The dust cover 121 comprises a vertical plate 1211 and a cover plate 1212, the cover plate 1212 is an arc-shaped plate, the cover plate 1212 is fixedly connected with the vertical plate 1211, and the cover plate 1212 is provided with a folding plate 1213.

[0041] Of course, the above-mentioned embodiments are not a limitation on the utility model, and the utility model is not limited to the above-mentioned examples, and the changes, modifications, additions or replacements made by the technical personnel in the technical field within the essential range of the utility model should also belong to the protection range of the utility model.

Claims

1. A towable tobacco field ditcher, comprising a frame (1), characterized in that: The frame (1) is provided with a transmission box (2), and the transmission box (2) is provided with a transmission shaft (5). The transmission shaft (5) is connected to the traction machine. The transmission box (2) is provided with digging wheels (3) on both sides. The digging wheels (3) are connected to the transmission box (2). The digging wheels (3) are provided with a number of rotary tillage blades (4).

2. The towable tobacco field ditcher according to claim 1, characterized in that: The frame (1) includes a suspension (11) and a crossbeam (12). The crossbeam (12) consists of two sets, with one end of each set of crossbeams (12) hinged together. A spacing adjustment component (13) is provided between the two sets of crossbeams (12). The crossbeam (12) is hinged to the spacing adjustment component (13), and the excavator wheel (3) is connected to the crossbeam (12) by a bearing.

3. A towable tobacco field ditcher according to claim 2, characterized in that: The excavator wheel (3) is provided with a spline sleeve (31) on its shaft, and the transmission box (2) is provided with a spline shaft (21). The spline sleeve (31) and the spline shaft (21) are connected by a plug-in fit.

4. A traction-type tobacco field ditcher according to claim 2, characterized in that: The spacing adjustment assembly (13) includes two sets of swing arms (131), a tie rod (132), and a hydraulic cylinder (134). One end of the swing arm (131) is hinged to the suspension (11), and the other end of the swing arm (131) is hinged to the crossbeam (12). One end of the tie rod (132) is hinged to the hinge axis of the crossbeam (12), and the other end of the tie rod (132) is fixedly connected to the base of the hydraulic cylinder (134). The free end of the hydraulic cylinder (134) is hinged to the suspension (11), and the movable end of the hydraulic cylinder (134) moves along the extension direction of the tie rod (132).

5. A traction-type tobacco field ditcher according to claim 2, characterized in that: The spacing adjustment assembly (13) includes two sets of swing arms (131), two sets of tie rods (132), and a turnbuckle nut (133). One end of the swing arm (131) is hinged to the suspension (11), and the other end of the swing arm (131) is hinged to the crossbeam (12). The other end of the crossbeam (12) is hinged. The tie rod (132) is provided with positive and negative threads. One end of the tie rod (132) is threaded to the turnbuckle nut (133), and the other end of the tie rod (132) is hinged to the hinge shaft of the suspension (11) and the crossbeam (12).

6. A traction-type tobacco field ditcher according to claim 2, characterized in that: A spline sleeve is provided on the drive shaft (5).

7. A towable tobacco field ditcher according to claim 1, characterized in that: The rear end of the excavating wheel (3) is provided with a plow blade (6), which is fixedly connected to the frame (1).

8. A towable tobacco field ditcher according to claim 2, characterized in that: A dust cover (121) is provided on the crossbeam (12), and the dust cover (121) is positioned above the excavator wheel (3).

9. A towable tobacco field ditcher according to claim 8, characterized in that: The dust cover (121) includes a vertical plate (1211) and a cover plate (1212). The cover plate (1212) is an arc-shaped plate. The cover plate (1212) is fixedly connected to the vertical plate (1211). A folding plate (1213) is provided on the cover plate (1212).

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