CN113348789B - Power-driven harrow - Google Patents
Power-driven harrow Download PDFInfo
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- CN113348789B CN113348789B CN202110538341.4A CN202110538341A CN113348789B CN 113348789 B CN113348789 B CN 113348789B CN 202110538341 A CN202110538341 A CN 202110538341A CN 113348789 B CN113348789 B CN 113348789B
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- soil
- scarifier
- harrow
- gear box
- soil leveling
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- 239000002689 soil Substances 0.000 claims abstract description 149
- 230000007246 mechanism Effects 0.000 claims description 32
- 230000002265 prevention Effects 0.000 claims description 16
- 239000000725 suspension Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 230000001629 suppression Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 238000005056 compaction Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B49/00—Combined machines
- A01B49/02—Combined machines with two or more soil-working tools of different kind
- A01B49/022—Combined machines with two or more soil-working tools of different kind at least one tool being actively driven
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
- A01B33/08—Tools; Details, e.g. adaptations of transmissions or gearings
- A01B33/082—Transmissions; Gearings; Power distribution
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
- A01B33/08—Tools; Details, e.g. adaptations of transmissions or gearings
- A01B33/087—Lifting devices; Depth regulation devices; Mountings
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Power Engineering (AREA)
- Soil Working Implements (AREA)
Abstract
The invention discloses a power-driven harrow, which comprises a gear box, a plurality of groups of harrow groups, a traction frame, a reduction box, a compacting and soil-flattening device and a wheel-printing soil loosener, wherein the cross beam is fixedly connected with the gear box, the reduction box is arranged at the top end of the gear box, the gear box comprises a plurality of groups of gears and harrow tooth shafts which are arranged side by side and meshed with each other, the lower end of the harrow tooth shaft is provided with a harrow tooth seat, harrow teeth are fixed on the harrow tooth seat, the gears drive the harrow tooth shafts, the harrow tooth seat and the harrow teeth to rotate, the wheel-printing soil loosener is arranged at the front end of the gear box, the compacting and soil-flattening device is arranged at the rear end of the gear box, after the harrow teeth are crushed, soil is flattened for the first time through a front soil-flattening lever, soil compaction and soil is compacted and soil moisture is preserved through a compacting roller, and finally a soil-flattening plate device is used for the second leveling, and the soil leveling effect is good after the operation is completed through one operation.
Description
Technical Field
The invention relates to a soil preparation machine with a driving type rotary working part, in particular to a power driving harrow.
Background
The power driven harrow is an implement for carrying out dry farmland soil breaking and soil preparing operation by utilizing a power output shaft of a tractor and driving a working part through a universal joint transmission shaft and a transmission system. The main working part is a row of rake teeth shafts, the lower end of each rake teeth seat shaft is provided with a rake teeth seat, and the rake teeth seat is provided with two rake teeth. During operation, the rake tooth shaft is driven by the power output shaft through the transmission system to rotate and advance at the same time to strike soil blocks, so that soil on a plough layer is loosened.
The prior art with the patent name of CN208783177U is entitled to a deep loosening force driving harrow, which comprises a traction frame arranged on a gear box, wherein a gear box is arranged at the top end of the gear box, a plurality of groups of gears and harrow tooth shafts which are mutually connected are arranged on the gear box, harrow tooth seats are arranged at the lower ends of the harrow tooth shafts, at least two harrow teeth are arranged on each harrow tooth seat, and the gears are connected with an output gear of the gear box; when the automatic rake-tooth mechanism works, the gearbox is driven to work through the gearbox input shaft, and the gearbox output gear in the gearbox rotates to drive the gear arranged on the rake-tooth seat to rotate, and the gear rotates to drive the rake teeth to rotate at high speed; the front end of the gear box is provided with a wheel seal scarifier, and the rear end of the gear box is provided with a pressing roller, but the soil leveling device is not provided, so that the soil flatness after one-time operation is poor, and the operation requirement of farmers cannot be met.
Disclosure of Invention
The invention provides a power-driven harrow, wherein the rear end of the harrow is provided with a compacting and soil-flattening device, and the soil-flattening effect is good after one-time operation; the technical scheme adopted is as follows:
the utility model provides a power drive harrow, includes gear box, a plurality of groups harrow group, traction frame, reducing gear box, suppression land leveller, wheel seal scarifier, the traction frame with gear box fixed connection, wheel seal scarifier hangs on the crossbeam, the crossbeam with gear box fixed connection, the reducing gear box is installed the gear box top, the gear box includes a plurality of groups and sets up side by side and intermeshing's gear and harrow tooth axle, the harrow tooth axle lower extreme is equipped with the harrow tooth seat, the harrow group is including fixing 2 harrow teeth on the harrow tooth seat, the harrow tooth axle sets up side by side, the gear cup joints on the harrow tooth axle, the reducing gear box is provided with reducing gear box input shaft and output gear, output gear drive cup joint the epaxial gear rotation of harrow tooth, the gear drive the harrow tooth axle the harrow tooth seat with the harrow tooth is rotatory, and adjacent harrow tooth axle rotation direction is opposite; the wheel seal scarifier is arranged at the front end of the gear box, and the compacting and leveling device is arranged at the rear end of the gear box; the method is characterized in that: the soil compacting and leveling device comprises a hanging frame, and a front soil leveling bar, a compacting roller and a rear soil leveling plate device which are connected with the hanging frame; preferably, the suspension bracket is connected with the gear box through a depth adjusting mechanism of the compacting and leveling device, and the depth adjusting mechanism of the compacting and leveling device is used for adjusting the operation depth of the compacting and leveling device.
The soil is crushed by the harrow teeth, then the concave part of the soil is filled up by the front soil leveling bar, the soil is leveled for the first time, then the compacting roller is used for compacting and preserving soil moisture, and finally, carrying out secondary leveling by using the post-soil leveling plate device, wherein the post-operation soil leveling effect is good, and the post-operation soil leveling plate device can be used for carrying out primary operation.
The rear soil leveling device is a rear pressurizing soil leveling device, the rear pressurizing soil leveling device comprises a soil leveling plate and at least one soil leveling plate connecting structure, the soil leveling plate connecting mechanism comprises a beam connecting device, a soil leveling arm and a pressurizing soil leveling plate overload protection device, the beam connecting device, the soil leveling arm and the pressurizing soil leveling plate overload protection device are connected with a hanging frame, the lower end of the soil leveling arm is used for fixing the soil leveling plate, the pressurizing soil leveling plate overload protection device is used for providing pressure and overload protection for the soil leveling plate, the pressurizing soil leveling plate overload protection device is located above the soil leveling arm, the soil leveling arm is connected with the lower end of the beam connecting device in a rotating mode, and the soil leveling arm is connected with the lower end of the pressurizing soil leveling plate overload protection device in a rotating mode.
Further preferably, the overload protection device for the pressurized soil leveling plate comprises a support piece, wherein the lower end of the support piece is rotationally connected with the soil loosening arm, a spring is sleeved on the support piece, and an upper spring limiting piece and a lower spring limiting piece are arranged at two ends of the spring; the spring is in a compressed state to provide pressure to the blade, but still can rebound with the ripper arm when the blade encounters excessive resistance.
The depth adjusting mechanism of the compacting and soil leveling device can realize stepless adjustment.
The optimization of the depth adjusting mechanism of the compacting and soil leveling device comprises the following steps: the depth adjusting mechanism of the compacting and soil leveling device comprises a chute seat, a connecting rod rest, an adjusting arm and an adjusting screw rod, wherein the chute seat is provided with a chute, the chute seat is fixedly connected with the gear box, the adjusting arm is rotationally connected with the gear box through a connecting piece, the adjusting arm comprises a head end, a tail end and a connecting part, the connecting rod rest comprises a connecting rod rest first end, a connecting rod rest second end and a connecting rod rest third end, the connecting rod rest first end is connected with the chute seat through the chute, the connecting rod rest second end is rotationally connected with the connecting part of the adjusting arm, and two ends of the adjusting screw rod are rotationally connected with the connecting rod rest third end and the tail end of the adjusting arm respectively; when the distance between the third end of the connecting rod rest and the tail end of the adjusting arm is adjusted through the adjusting screw rod, the first end of the connecting rod rest slides up and down along the sliding groove, the adjusting arm is driven by the connecting rod rest to rotate by taking the first connecting piece as the center, and when the connecting rod rest is adjusted to a proper position, the connecting rod rest is fastened with the sliding groove seat so as to prevent the connecting rod rest from sliding continuously.
In addition, the sliding groove seat can be replaced by a sliding groove seat, and the adjusting screw rod can be replaced by an oil cylinder.
And the arrangement mode of the harrow teeth is optimized, and the harrow teeth on the adjacent harrow tooth holders are closely staggered.
It is further preferred that the angle of the tines on the clockwise rotating tine shaft to the plane perpendicular to the pulling direction is less than 45 °, or the angle of the tines of the clockwise rotating tine shaft to the plane perpendicular to the pulling direction is less than 30 °, or the angle of the tines of the clockwise rotating tine shaft to the plane perpendicular to the pulling direction is less than 15 °.
The pitch of the rake teeth is preferably 1.02-1.1 times of the diameter of the rake teeth seat, or 1.02-1.04 times of the diameter of the rake teeth seat, or 1.02 times of the diameter of the rake teeth seat.
For the preference of the wheel seal loosener, the wheel seal loosener has an overload protection function, the wheel seal loosener is provided with an overload protection device of the wheel seal loosener, the wheel seal loosener is hung on a cross beam, and the cross beam is fixedly connected with the gear box.
Still preferably, the scarifier comprises a scarifier arm, a plow shovel fixed at the lower end of the scarifier arm, and a scarifier depth adjusting mechanism, wherein the scarifier depth adjusting mechanism is used for connecting the scarifier depth adjusting mechanism with a beam fixing device of the beam; when the resistance is met by the plow shovel, the scarifier is pulled by the scarifier overload prevention reset device to rotate around the first limiting part, and when the resistance disappears, the scarifier overload prevention reset device can reset the scarifier.
Preferably, the number of the rake teeth installed on the rake tooth seat is greater than 2.
The invention has the beneficial effects that:
1) The power-driven harrow is provided with a soil flattening device, the soil flattening device comprises a front soil flattening bar, a pressing roller and a rear soil flattening plate device, soil is crushed by harrow teeth, soil concave parts are filled through the front soil flattening bar, soil is flattened for the first time, soil compaction and soil moisture conservation are carried out by using the pressing roller, and finally, secondary leveling is carried out by using the rear soil flattening plate device, so that the soil flattening effect is good after operation, and the soil flattening device can be used for one time;
2) The rear soil leveling plate device is a rear soil leveling plate device, has a supercharging effect and is better in soil leveling effect;
3) The operation depth of the compacting and soil-leveling device can be adjusted in a stepless manner so as to meet different planting requirements;
4) Compared with the traditional 90-degree staggered arrangement, the rake teeth on the adjacent rake tooth seats are closely adjacent to each other in the staggered arrangement, vibration born by the rack is uniformly dispersed, the machine runs stably, the born pressure is smaller, and the relative load oil consumption is reduced; the peak torque of the frame is smaller, and the oil consumption is correspondingly smaller; the pressure applied during the soil entering is balanced, the pressure is also uniformly distributed, and the stability of the machine is better;
5) The wheel seal loosener is provided with an overload protection device, when the plough shovel encounters resistance, the loosener arm pulls the wheel seal loosener overload prevention reset device to rotate around the first limiting part, and when the resistance disappears, the wheel seal loosener overload prevention reset device can reset the loosener arm; the service life of the wheel seal scarifier is prolonged;
6) The tire-compacted soil is loosened through the wheel printing loosener, so that the problem that pits appear due to the fact that the working depth of rake teeth on the compacted soil is reduced is avoided; the rake teeth on the adjacent rake tooth seats are closely adjacent to each other in a staggered manner, so that the pressure received by the machine is smaller and more uniform, and the machine operates more stably; the soil is crushed by the harrow teeth, then the soil concave part is filled up by the front soil leveling bar, the soil is leveled for the first time, then the compacting roller is used for compacting soil moisture conservation, finally the rear soil leveling plate device is used for secondary leveling, the soil leveling effect is good after the operation, and the soil leveling effect is achieved through one-time operation; the whole machine is strict and ingenious in design, good in operation effect and popular with farmers.
Drawings
FIG. 1 is a schematic perspective view of a power driven rake according to the present invention;
FIG. 2 is a schematic diagram of a perspective view of a power driven rake according to the present invention;
FIG. 3 is a schematic view of the construction of the rotary ripper;
FIG. 4 is a schematic view of the structure of the rear supercharging land leveling device;
FIG. 5 is a schematic view of the construction of the depth adjustment mechanism of the compacting and grading apparatus;
FIG. 6 is a schematic structural view of a front view of the gearbox and rake assembly of the present invention;
FIG. 7 is a schematic structural view of the top view of FIG. 6;
FIG. 8 is a schematic structural view of a perspective view of a gearbox and rake assembly according to the present invention;
FIG. 9 is a schematic structural view of the bottom view of FIG. 6;
FIG. 10 is a schematic view of the structure of the enlarged partial view of FIG. 9;
FIG. 11 is a schematic structural view of the cross-sectional view taken along the direction A-A of FIG. 6;
FIG. 12 is a schematic diagram of the front view of the power driven rake of the present invention;
FIG. 13 is a schematic view of the structure of the left view of FIG. 12;
FIG. 14 is a schematic view of a soil compacting apparatus according to the present invention;
FIG. 15 is a schematic diagram of a soil compacting apparatus according to the present invention;
fig. 16 is a schematic diagram of the connection relationship between the adjusting gear and the limiting gear according to the present invention.
In the figure: 1. gearbox, 2, cross beam, 3, traction frame, 4, retaining plate, 5, soil compacting and leveling device, 501, compacting roller, 502, front soil leveling bar, 50201, front soil leveling bar depth adjusting mechanism, 5020101, adjusting gear, 5020102, adjusting tooth slot, 5020103, limiting pin, 5020104, limiting gear, 503, rear pressurizing soil leveling plate device, 50301, hanging frame connecting device, 50302, soil leveling arm, 50303, soil leveling plate, 50304, pressurizing soil leveling plate overload protecting device, 504, hanging frame, 6, reduction box, 7, wheel printing loosener, 701, soil loosening arm, 702, plow blade, 703, depth adjusting bar, 704, cross beam fixing clip, 705, wheel printing loosener overload preventing reset device, 70501, guide stop rotating column, 70502, spring limiting pieces, 70503, springs, 70504, connecting columns, 706, limiting bolts, 707, limiting shafts, 708, limiting supports, 8, rake groups, 801, rake teeth B,802, rake teeth C,803, rake teeth a,804, rake teeth shafts, 805, rake teeth seats, 806, gears, 807, O-ring seals, 808, box type oil seals, 809, felt rings 9, a soil compacting device depth adjusting mechanism, 901, a chute seat, 90101, a chute, 902, an adjusting screw, 903, a connecting rod frame, 90301, a connecting rod frame first end, 90302, a connecting rod frame second end, 90303, a connecting rod frame third end, 904, an adjusting arm, 90401, an adjusting arm head end, 90402, an adjusting arm connecting part, 90403, an adjusting arm tail end, 90404 and a connecting hole.
Detailed Description
Example 1
The invention is further described with reference to fig. 1-16, and the power driven rake comprises a gear box 1, a plurality of groups of rake groups 8, a traction frame 3, a reduction gearbox 6, a compacting and leveling device 5 and a gear scarifier 7, wherein the traction frame 3 is fixedly connected with the gear box 1, the gear scarifier 7 is suspended on a cross beam 2, the cross beam 2 is fixedly connected with the gear box 1, the reduction gearbox 6 is arranged at the top end of the gear box 1, the gear box 1 comprises a plurality of groups of gears 806 and rake shafts 804 which are arranged side by side and meshed with each other, the lower end of the rake shafts 804 is provided with rake teeth seats 805, the gears 806 drive the rake shafts 804 and the rake teeth 805 to rotate, the rake teeth A803 and the rake teeth C802 are fixedly connected with the rake shafts 804 through the rake teeth seats 805, the rake shafts 804 drive the rake teeth A and the rake teeth C802 to rotate, the gear shafts 804 are arranged side by side, the gear boxes are arranged at the lower ends of the gear boxes and the gear boxes are fixedly connected with the gear shafts 805 in a rotating mode, and the gear boxes are sleeved with the gear boxes 802 are fixedly arranged at the lower ends of the gear boxes which rotate; the wheel seal scarifier 7 is arranged at the front end of the gear box 1, and the compacting and leveling device 5 is arranged at the rear end of the gear box 1; the compacting soil leveling device 5 comprises a hanging frame 504, and a front soil leveling bar 502, a compacting roller 501 and a rear pressurizing soil leveling plate device 503 which are connected with the hanging frame 504; the hanging frame 504 is connected with the gear box 1 through a pressing and soil flattening device depth adjusting mechanism 9, and the pressing and soil flattening device depth adjusting mechanism 9 is used for adjusting the operation depth of the pressing and soil flattening device 5.
Front soil leveling bar 502 is equipped with front soil leveling bar degree of depth adjustment mechanism 50201, front soil leveling bar degree of depth adjustment mechanism include adjusting gear 5020101, with adjusting gear complex regulation tooth groove 5020102, limit gear 5020104, with limit gear complex spacer 5020103, adjusting gear 5020101 with limit gear 5020104 passes through same connecting axle and connects, through adjusting gear 5020101, drive with adjusting tooth groove 5020102 is connected front soil leveling bar 502 reciprocates, when moving to suitable position, restriction through the spacer 5020103 spacing gear 5020104 rotates, thereby restriction adjusting gear rotates.
Referring to fig. 4, the post-increasing soil leveling device 503 includes a soil leveling plate 50303 and 2 soil leveling plate connecting mechanisms, the soil leveling plate connecting mechanisms include a hanging frame connecting device 50301 for connecting with a hanging frame 504, a soil leveling arm 50302, and a pressure increasing soil leveling plate overload protecting device 50304, the lower end of the soil leveling arm 50302 is used for fixing the soil leveling plate 50303, the pressure increasing soil leveling plate overload protecting device 50304 is used for providing pressure and overload protection for the soil leveling plate 50303, the pressure increasing soil leveling plate overload protecting device 50304 is located above the soil leveling arm 50302, the soil leveling arm 50302 is rotationally connected with the lower end of the hanging frame connecting device 50301, and the soil leveling arm 50302 is rotationally connected with the lower end of the pressure increasing soil leveling plate overload protecting device 50304.
The pressurized land plate overload protection device 50304 includes a spring; the spring is in a compressed state to provide pressure to the earth plate 50302, but still can rebound with the earth arm 50302 when the earth plate 50302 encounters excessive resistance.
Referring to fig. 5, the depth adjusting mechanism 9 of the soil compacting device comprises a chute seat 901, a connecting rod bracket 903, an adjusting arm 904 and an adjusting screw 902, wherein the chute seat 901 is fixedly connected with the gear box 1, the chute seat 901 is provided with a chute 90101, the adjusting arm 904 comprises an adjusting arm head end 90401, an adjusting arm tail end 90403 and an adjusting arm connecting part 90402, the adjusting arm head end 90401 is rotatably connected with the gear box through a connecting piece I, the connecting piece I can be a screw rod, the adjusting arm connecting part 90402 is provided with a connecting hole 90404 near one end of the adjusting arm tail end 90403, a suspension bracket 504 of the soil compacting device is connected with the depth adjusting mechanism 9 of the soil compacting device through the connecting hole 90404, the connecting rod bracket 903 comprises a connecting rod bracket first end 90301, a connecting rod bracket second end 90302 and a connecting rod bracket third end 90303, the connecting rod bracket first end 90301 is connected with the chute seat 901, the connecting rod bracket second end 302 is connected with the connecting rod bracket 69, the connecting rod bracket second end 97302 is connected with the adjusting arm connecting part 69, and the adjusting screw rod end 9743 is respectively connected with the adjusting screw rod end 902; when the distance between the third end 90303 of the connecting rod rest and the tail end 90403 of the adjusting arm is adjusted through the adjusting screw 902, the first end 90301 of the connecting rod rest slides downwards in the sliding groove 90101 of the sliding groove seat, the adjusting arm 904 is driven by the connecting rod rest 903 to rotate around a first connecting piece which is rotationally connected with the first end 90401 of the adjusting arm, and when the adjusting screw is adjusted to a proper position, the connecting rod rest 903 is fastened to the sliding groove seat 901 so as to prevent the sliding from being continued.
When the adjusting screw 902 is adjusted to enlarge the distance between the tail end 90403 of the adjusting arm and the third end 90303 of the connecting rod rest, the first end 90301 of the connecting rod rest slides to the bottom end along the sliding groove 90101, the soil compacting and leveling device 5 sinks along with the sliding groove 90101, and the working depth is enlarged; when the adjusting screw 902 is adjusted to reduce the distance between the adjusting arm end 90403 and the third connecting rod bracket end 90303, the first connecting rod bracket end 90301 slides upwards along the sliding groove 90101, and the soil compacting and leveling device 5 moves upwards accordingly, so that the working depth is reduced.
Referring to fig. 3, the scarifier 7 includes a scarifier arm 701, a plow blade 702 fixed at the lower end of the scarifier arm 701, a depth adjusting bar 703, a beam fixing clip 704 for connecting the depth adjusting bar 703 with the beam 2, a limiting shaft 707, a limiting bolt 706, a limiting bracket 708, and a scarifier overload prevention reset device 705, wherein the limiting bracket 708 is used for supporting the limiting shaft 707, the limiting bolt 706 and the depth adjusting bar 703, the limiting bolt 706 and the limiting shaft 707 are respectively positioned at two sides of the scarifier arm 701, the upper end of the scarifier arm 701 is rotatably connected with the scarifier overload prevention reset device 705, and the limiting bracket 708 supports the scarifier overload prevention reset device 705; when the plow blade 702 encounters resistance, the scarifier arm 701 pulls the scarifier overload prevention reset device 705 to rotate around the limiting shaft 707, and when resistance disappears, the scarifier overload prevention reset device 705 can reset the scarifier arm 701.
Referring to fig. 3, the overload prevention reset device 705 of the track scarifier comprises a connecting column 70504, a spring 70503 sleeved on the connecting column 70504, and spring limiting members 70502 used for limiting two ends of the spring 70503 are arranged on the connecting column 70504. In order to facilitate the rotation of the scarifier 701, the overload prevention reset device 705 comprises a guide stop rotating column 70501, the guide stop rotating column 70501 is sleeved on the connecting column 70504, and the limit bracket 708 is provided with a concave surface rotationally connected with the guide stop rotating column 70501.
Referring to fig. 6-11, the rake group 8 includes rake teeth a803 and rake teeth C802, the rake teeth a803 and the rake teeth C802 are fixedly connected with the rake teeth shaft 804 through rake teeth seats 805, the rake teeth shaft 804 drives the rake teeth a803 and the rake teeth C802 to rotate, gears 806 on adjacent rake teeth shafts 804 are meshed, and the gears 806 are disposed in the gear box 1; the rake teeth comprise back parts and edge parts with cutting edges, the rake teeth A803 and the rake teeth C802 are arranged at the lower ends of the rake teeth seats 805, and the rotation directions of the rake teeth shafts are consistent with the edge parts of the rake teeth A803 and the rake teeth C802 on the same rake teeth shaft; the rotation directions of adjacent rake tooth shafts are opposite, the rake tooth shafts 804 are arranged side by side, and rake teeth A803 and rake teeth B801 on adjacent rake tooth seats are closely staggered; the rake teeth A803 and the rake teeth B801 on the adjacent rake tooth seats are closely staggered under the condition of no interference operation.
Compared with the traditional 90-degree staggered arrangement, the rake teeth on the adjacent rake tooth seats are closely adjacent to each other in the staggered arrangement, vibration born by the rack is uniformly dispersed, the machine runs stably, the born pressure is smaller, and the relative load oil consumption is reduced; the peak torque of the frame is smaller, and the oil consumption is correspondingly smaller; the pressure applied during the soil entering is balanced, the pressure is also evenly distributed, and the stability to the machine is better.
Referring to fig. 10, the distance L between adjacent rake teeth is 1.02-1.1 times the diameter D of the rake teeth seat, and when the diameter D of the selected rake teeth seat is 240mm, the distance L between adjacent rake teeth shafts is 245 mm-260 mm; the smaller the spacing, the better the torque is dispersed, and the power is reduced; and better soil working effect can be produced.
Referring to fig. 6 to 10 in combination, the rake teeth shaft rotating clockwise as viewed in fig. 7 rotates counterclockwise as viewed in fig. 9 and 10;
referring to fig. 7, 9 and 10, the rake teeth on the rake shaft rotating clockwise in fig. 7 deviate from the plane perpendicular to the traction direction by an angle α (fig. 10) of less than 45 °, or α (fig. 10) of less than 30 °, or α (fig. 10) of less than 15 °. The teeth on the clockwise rotating tooth shaft are arranged on or near the surface perpendicular to the traction direction to reduce torque, thereby reducing oil consumption and prolonging the service life of the machine.
Referring to fig. 1 and 2, the power driven rake according to the present invention further includes a soil guard plate 4, the soil guard plate 4 is disposed at both sides of the gear box, and the soil guard plate 4 is connected to the gear box.
As shown in fig. 11, the rake shaft 804 and the rake teeth seat 805 are formed into a unitary structure by die forging, and the strength of the unitary structure is higher; it is also contemplated that the tine shaft 804 and the tine seat 805 may be separate structures that are secured together by welding or other means of attachment.
Referring to fig. 11, a double-row tapered roller bearing is used at the lower end of the rake teeth shaft 804, so that the multi-axial impact resistance and high load capacity are realized, and the service life of the rake teeth shaft is 30% longer than that of a traditional tapered roller bearing; the O-shaped sealing ring 807, the box-shaped oil seal 808 and the felt ring 809 are combined with labyrinth sealing, and multiple sealing can effectively prevent water and soil from penetrating into the rotor and the gear box.
Claims (6)
1. The utility model provides a power drive harrow, includes gear box, a plurality of groups harrow group, traction frame, reducing gear box, suppression land leveller, wheel seal scarifier, the traction frame with gear box fixed connection, wheel seal scarifier hangs on the crossbeam, the crossbeam with gear box fixed connection, the reducing gear box is installed the gear box top, the gear box includes a plurality of groups and sets up side by side and intermeshing's gear and harrow tooth axle, the harrow tooth axle lower extreme is equipped with the harrow tooth seat, the harrow group is including fixing 2 harrow teeth on the harrow tooth seat, the harrow tooth axle sets up side by side, the gear cup joints on the harrow tooth axle, the reducing gear box is provided with reducing gear box input shaft and output gear, output gear drive cup joint the epaxial gear rotation of harrow tooth, the gear drive the harrow tooth axle the harrow tooth seat with the harrow tooth is rotatory, and adjacent harrow tooth axle rotation direction is opposite; the wheel seal scarifier is arranged at the front end of the gear box, and the compacting and leveling device is arranged at the rear end of the gear box; the method is characterized in that: the soil compacting and leveling device comprises a hanging frame, and a front soil leveling bar, a compacting roller and a rear soil leveling plate device which are connected with the hanging frame; the suspension bracket is connected with the gear box through a depth adjusting mechanism of the compacting and soil flattening device, and the depth adjusting mechanism of the compacting and soil flattening device is used for adjusting the operation depth of the compacting and soil flattening device; the depth adjusting mechanism of the compacting and soil leveling device comprises a chute seat, a connecting rod rest, an adjusting arm and an adjusting screw rod, wherein the chute seat is provided with a chute, the chute seat is fixedly connected with the gear box, the adjusting arm is rotationally connected with the gear box through a connecting piece, the adjusting arm comprises a head end, a tail end and a connecting part, the connecting rod rest comprises a connecting rod rest first end, a connecting rod rest second end and a connecting rod rest third end, the connecting rod rest first end is connected with the chute seat through the chute, the connecting rod rest second end is rotationally connected with the connecting part of the adjusting arm, and two ends of the adjusting screw rod are rotationally connected with the connecting rod rest third end and the tail end of the adjusting arm respectively; when the distance between the third end of the connecting rod rest and the tail end of the adjusting arm is adjusted through the adjusting screw rod, the first end of the connecting rod rest slides up and down along the sliding groove, the adjusting arm is driven by the connecting rod rest to rotate around the first connecting piece, and when the adjusting screw rod is adjusted to a proper position, the connecting rod rest is fastened with the sliding groove seat so as to prevent the connecting rod rest from sliding continuously;
the depth adjusting mechanism of the compacting and soil leveling device can realize stepless adjustment;
the rake teeth on the adjacent rake tooth seats are closely adjacent and staggered.
2. The power operated rake as set forth in claim 1 wherein: the rear soil leveling plate device is a rear pressurizing soil leveling plate device, the rear pressurizing soil leveling plate device comprises a soil leveling plate and at least one soil leveling plate connecting mechanism, the soil leveling plate connecting mechanism comprises a beam connecting device, a soil leveling arm and a pressurizing soil leveling plate overload protecting device, the beam connecting device and the soil leveling arm are connected with a hanging frame, the lower end of the soil leveling arm is used for fixing the soil leveling plate, the pressurizing soil leveling plate overload protecting device is used for providing pressure and overload protection for the soil leveling plate, the pressurizing soil leveling plate overload protecting device is located above the soil leveling arm, the soil leveling arm is connected with the lower end of the beam connecting device in a rotating mode, and the soil leveling arm is connected with the lower end of the pressurizing soil leveling plate overload protecting device in a rotating mode.
3. The power operated rake as set forth in claim 1 wherein: the sliding groove seat is replaced by a sliding groove seat, or the adjusting screw rod is replaced by an oil cylinder.
4. The power operated rake as set forth in claim 1 wherein: the distance between adjacent rake teeth shafts is 1.02-1.1 times of the diameter of the rake teeth seat, or the distance between adjacent rake teeth shafts is 1.02-1.04 times of the diameter of the rake teeth seat, or the distance between adjacent rake teeth shafts is 1.02 times of the diameter of the rake teeth seat.
5. The power operated rake as set forth in claim 4 wherein: the device comprises a scarifier, a plow shovel, a scarifier depth adjusting mechanism, a beam fixing device, a limiting piece I, a limiting piece II and a scarifier overload prevention reset device, wherein the plow shovel and the scarifier depth adjusting mechanism are fixed at the lower end of the scarifier, the beam fixing device is used for connecting the scarifier depth adjusting mechanism with the beam, the working depth of the scarifier is changed by changing the connection position of the beam fixing device and the scarifier depth adjusting mechanism, the limiting piece I, the limiting piece II and the limiting support are used for supporting the limiting piece I, the limiting piece II and the scarifier depth adjusting mechanism, the limiting piece I and the limiting piece II are respectively positioned at two sides of the scarifier arm, the upper end of the scarifier arm is rotationally connected with the scarifier overload prevention reset device, and the limiting support supports the scarifier overload prevention reset device; when the resistance is met by the plow shovel, the scarifier is pulled by the scarifier overload prevention reset device to rotate around the first limiting part, and when the resistance disappears, the scarifier overload prevention reset device can reset the scarifier.
6. The power operated rake as set forth in claim 1 wherein: the number of the harrow teeth arranged on the harrow tooth seat is more than 2.
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| CN202110538341.4A CN113348789B (en) | 2021-05-18 | 2021-05-18 | Power-driven harrow |
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| CN202110538341.4A CN113348789B (en) | 2021-05-18 | 2021-05-18 | Power-driven harrow |
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| CN113348789B true CN113348789B (en) | 2024-03-08 |
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| CN116210375A (en) * | 2023-03-09 | 2023-06-06 | 山东省林业保护和发展服务中心 | Soil preparation device for peony cultivation |
| CN116438948B (en) * | 2023-04-22 | 2024-01-26 | 青岛郁金香机械有限公司 | Power-driven harrow |
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