CN210143244U - Tobacco high-ridge film paving machine - Google Patents

Abstract

The utility model discloses a tobacco high-ridge film spreading machine, which comprises a frame assembly, wherein the frame assembly is sequentially provided with an upper ridge shaping device, a furrow pressing device, a film pressing wheel device and a soil throwing and film pressing device from front to back; the frame assembly is also provided with a film cylinder device and a traveling mechanism. The utility model provides a membrane machine is spread to high ridge of tobacco can carry out high ridge operation, and can ensure that plastic film and high ridge ground laminate completely, improves the plant survival rate, reduces the sick worm calamity, reaches the purpose that reduces the work and reduces cost and increase effect, tobacco grower increase income.

Description

Tobacco high-ridge film paving machine

Technical Field

The utility model relates to a membrane field is spread to the plastic film, especially relates to a membrane machine is spread to high ridge of tobacco.

Background

At present, the mulching film spreading machine in the prior art forms a lot of products in China. However, the existing film-laying machine is mainly used for the film-laying operation of flat or low-ridge soil, but the film-laying machine for the mulching film which needs to operate on the high ridges with large row spacing has the following defects:

1. at present, the machine type developed in China is a small machine type, and the new requirements of planting and film-paving of tobacco high-ridge large ridges, such as high soil humidity, heavy soil, soil moisture content of more than or equal to 26%, ridge spacing of 136-138 cm and high ridge of more than or equal to 38cm, in tobacco areas in China and rainy seasons in south cannot be substantially solved.

2. The lamination elements are not designed properly. In the film pressing process, particularly when the film is pressed on the ridges, the ridge shape is low at two sides and high in the middle, so that the mulching film is curled at the oblique edges of the trapezoidal ridges, the width of the spread film is insufficient, the mulching film cannot be tightened, the film pressing is not tight, and the like.

3. Soil conditions in various regions, particularly for thick, sticky and hard soil, are not considered. After ridging at the time of farming, large soil blocks often exist on the ridges and generally have uneven heights, because the film paving machine in the prior art directly forms ridges regardless of the particle size of the soil blocks, so that the defects of uneven film paving, large hollow gaps, thin film puncturing by stubble and hard objects and the like exist.

4. In the prior art, the film pressing devices are all covered with soil by using a disc cutter, and the device is only limited to sandy soil with low water content (less than or equal to 26%) and covered with film with low ridges less than or equal to 25 cm. To the big ridge earthing press mold of present flue-cured tobacco production high ridge, high ridge earthing press mold of tobacco can't be realized to current disc cutter earthing, can't satisfy the tobacco agronomic requirement.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a membrane machine is spread to high ridge of tobacco can carry out high ridge operation, and can ensure that plastic film and high ridge ground laminate completely, improves the plant survival rate, reduces the sick worm calamity, reaches the purpose that subtracts worker's cost and improve efficiency, the cigarette grower increases income.

In order to realize the aim, the utility model provides a tobacco high-ridge film paving machine, which comprises a frame assembly, wherein the frame assembly is sequentially provided with an upper-ridge shaping device, a ditch pressing device, a film pressing wheel device and a soil throwing and film pressing device from front to back; the frame assembly is also provided with a film cylinder device and a traveling mechanism.

As a further improvement of the utility model, the on-ridge shaping device comprises a shaping scraper which is connected with the frame assembly through a first support rod; the lower part of the shaping scraper is provided with an upward concave gap, and the tails of the left side and the right side of the shaping scraper are inclined backwards.

As a further improvement of the utility model, the ditching device comprises two ditching wheels which are arranged in parallel, and the two ditching wheels are connected with the frame assembly through a second supporting rod; the wheel surface of the pressure groove wheel is provided with an annular groove arranged around the axis of the pressure groove wheel.

As a further improvement of the utility model, the film pressing wheel device comprises two film pressing wheels which are symmetrically arranged left and right, and the film pressing wheels are connected with the frame assembly through a third supporting rod; the lower side and the rear side of the film pressing wheel are both inclined outwards; the outward inclination angle of the lower side of the film pressing wheel is 10-50 degrees, and the outward inclination angle of the rear side of the film pressing wheel is 10-30 degrees.

As a further improvement of the utility model, the two soil throwing and film pressing devices are symmetrically arranged at the two sides of the frame assembly; each soil throwing and film pressing device comprises a hilling knife rotating around a transverse axis and a mud blocking cover positioned on the outer side of the hilling knife.

As a further improvement of the utility model, the soil-throwing and film-pressing device also comprises a spoon-shaped cutter which coaxially rotates with the hilling cutter; the spoon-shaped cutter is positioned on the inner side of the mud blocking cover and positioned on the outer side of the hilling cutter.

As a further improvement, the shaping device, the ditching device and the film pressing wheel device are all provided with a width adjusting mechanism and a height adjusting mechanism on the ridge, and the soil throwing and film pressing device is provided with the width adjusting mechanism.

As a further improvement of the utility model, the running mechanism is a tail wheel assembly arranged at the tail part of the frame assembly; the front part of the frame assembly is provided with a connecting assembly used for being connected with a tractor; and a transmission assembly linked with the soil throwing and film pressing device is arranged on the frame assembly.

As a further improvement, the transmission assembly includes the bevel gear gearbox, and the input of bevel gear gearbox is equipped with the universal joint transmission shaft that is used for being connected with the power take off end of tractor, and the output of bevel gear gearbox passes through drive mechanism and the linkage of throwing native film pressing device.

Advantageous effects

Compared with the prior art, the utility model discloses a high ridge film paving machine's of tobacco advantage does:

1. the soil-covering and film-pressing machine is suitable for tobacco regions all over the country and rainy regions in the south, and is used for soil-covering and film-pressing operation on tobacco planting high ridges with high soil humidity, more heavy clay, soil water content larger than or equal to 26%, ridge spacing of 136-138 cm and high ridge larger than or equal to 38 cm. Because the shaping is carried out through the shaping device on the ridge, the upper surface of the ridge is smooth without convex stones. The ditch pressing device presses out the ditch in the slope of ridge both sides, presses the plastic film on the ridge through the pressure membrane wheel device, and plastic film surfacing this moment covers the soil on ridge both sides ground at the ditch internal pressure of ditch and withholds the film through throwing native pressure membrane device again. Even if the ridges are high in height and large in gradient, the mulching film can be completely attached to the ground of the high ridges, so that the effects of heat preservation, water preservation and fertilizer preservation of the mulching film are achieved, the survival rate of tobacco seedlings is improved, plant diseases and insect pests are reduced, tobacco planting is standardized, the yield is improved, the whole process mechanization of tobacco production is promoted, and the purposes of reducing labor and cost, improving efficiency and increasing income of tobacco growers are achieved.

2. The lower part of the shaping scraper of the shaping device on the ridge is provided with an upwardly concave gap. After the upper surface of the ridge passes through the notch of the shaping scraper blade, the surface of the ridge can be scraped to be smooth by the edge of the notch, and the tails of the left side and the right side of the shaping scraper blade are inclined backwards, so that scraped soil materials are discharged downwards.

3. The film pressing wheel slope of both sides is arranged among the film pressing wheel device, can not only press the plastic film at the upper surface of ridge, can let the plastic film paste on the slope upper portion of ridge both sides moreover, and the partial slant of film pressing wheel and plastic film contact rolls outward moreover, can let the plastic film both sides outwards tighten through frictional force between the two, then can let the laminating degree of plastic film and ridge higher.

4. When the hilling knife rotates, the hilling knife can turn up soil on the ground on the two sides of the ridge and cover the soil above the grooves on the two sides of the mulching film to press the mulching film, and the grooves are used for improving the supporting force for covering soil, reducing the sliding of the covering soil, ensuring that the covering soil of the mulching film can be stably pressed, and avoiding the occurrence of gaps. The mud guard can let the soil material that is turned up by the earthing cutter fall in fixed area, lets the soil material that is used for covering in the plastic film both sides more concentrate, and the fixed effect of plastic film is better.

5. The spoon-shaped cutter is used for loosening and breaking the soil at the bottom of the ditch on two sides of the ploughed ridge and can increase the soil throwing amount. After the soil is broken by the spoon-shaped cutter, the soil is more uniformly distributed during film covering, the film is spread smoothly, hollow gaps are not easy to occur, and the problem that stubble or hard objects pierce the film is avoided as far as possible.

6. The ridge shaping device, the furrow pressing device and the film pressing wheel device are all provided with a width adjusting mechanism and a height adjusting mechanism, and the ridge shaping device is suitable for ridges with different widths and heights.

7. Can be matched with a general wheel-type tractor for use, and saves the machine purchasing cost. In addition, the soil throwing and film pressing device utilizes the power of a tractor, a power device is not required, and the cost is reduced.

The invention will become more apparent from the following description when taken in conjunction with the accompanying drawings which illustrate embodiments of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of a tobacco high ridge film-laying machine in cooperation with a tractor;

FIG. 2 is a front view of a tobacco high ridge film-laying machine;

FIG. 3 is a top view of a tobacco high ridge film-laying machine;

FIG. 4 is a view in the direction D of FIG. 2;

FIG. 5 is a view from the direction C-C of FIG. 2;

FIG. 6 is a view from the B-B direction of FIG. 2;

FIG. 7 is a view taken along line A-A of FIG. 2;

FIG. 8 is a side view of the travel mechanism;

FIG. 9 is a schematic structural view of a soil-throwing and film-pressing device;

fig. 10 is a side view of a hilling knife and a scoop-type knife.

Detailed Description

Embodiments of the present invention will now be described with reference to the accompanying drawings.

Examples

The utility model discloses a particular embodiment is as shown in fig. 1 to fig. 10, a membrane machine is spread to high ridge of tobacco, including frame assembly 2, frame assembly 2 is gone up by preceding shaping device 8, pressure ditch device 9, press mold wheel device 11 and the film pressing device 3 that throws earth backward being equipped with in proper order. The frame assembly 2 is also provided with a film cylinder device 10 and a walking mechanism. The running gear is a tail wheel assembly 1 arranged at the tail part of the frame assembly 2. The front part of the frame assembly 2 is provided with a connecting assembly used for being connected with a tractor 13. In this embodiment, the connection assembly includes a suspension connection mechanism 7, an upper pull rod 12, and a left and a right swing arms 14. The rear end of the suspension connecting mechanism 7 is hinged with the frame assembly 2, the front end of the upper pull rod 12 is hinged with the tractor 13, and connecting pieces which are respectively hinged with the front end of the suspension connecting mechanism 7 and the rear end of the upper pull rod 12 are arranged between the front end of the suspension connecting mechanism 7 and the rear end of the upper pull rod 12. Two ends of the left and right swing arms 14 are respectively hinged with the tractor 13 and the frame assembly 2. Shaping device 8, pressure ditch device 9, film pressing wheel device 11 all are equipped with width adjustment mechanism and height adjustment mechanism on the ridge, and throwing soil film pressing device 3 is equipped with width adjustment mechanism.

The ridge shaping device 8 comprises a shaping scraper 81, and the shaping scraper 81 is connected with the rack assembly 2 through a first supporting rod 82. The lower part of the shaping scraper 81 is provided with an upward concave gap, and the tails of the left side and the right side of the shaping scraper 81 are inclined backwards. The frame assembly 2 is provided with a first width adjustment mechanism 84, which includes a sleeve in the middle and two lateral rods inserted into the two ends of the sleeve. The shaping scraper 81 is connected to the other end of the transverse loop bar of the first width adjustment mechanism 84 through a first height adjustment mechanism. The first height adjusting mechanism comprises a first supporting rod 82 and a first lifting sleeve 83 sleeved with the first supporting rod 82, and the first lifting sleeve 83 is connected with a transverse sleeve rod of a first width adjusting mechanism 84. The sleeve and the transverse loop bar and the first lifting sleeve 83 and the first supporting rod 82 are fixed through different locking structures which can be screws. The shaping scraper 81 comprises two shaping single plates 811 which are arranged in bilateral symmetry, the adjacent parts of the two shaping single plates 811 are arranged in an overlapping way, and each shaping single plate 811 is connected with one first supporting rod 82.

The ditching device 9 comprises two ditching wheels 91 arranged in parallel, and the two ditching wheels 91 are respectively connected with the rack assembly 2 through two different second supporting rods 92. The tread of the creasing wheel 91 is provided with an annular groove arranged around its axis. Two second sleeves are arranged on the rack assembly 2, each second sleeve is sleeved with a second supporting rod 92 which is vertically arranged, and the two second sleeves can move up and down relatively. The top of second branch 92 is equipped with first crank, and is rotatory through first crank, drives the screw nut elevation structure on the second branch 92, can realize the lift of pressure ditch wheel 91. The second sleeve is locked to the second strut 92 by a screw. And the second sleeve is locked with the frame assembly 2 through a screw, and the two second sleeves can slide left and right relative to the frame assembly 2, so that the distance between the two pressure groove wheels 91 is adjusted.

Film pressing wheel device 11 includes two film pressing wheels 111 that bilateral symmetry arranged, and film pressing wheel 111 is connected with frame assembly 2 through third branch 112. Both the underside and the rear side of film pressing wheel 111 are inclined outwardly. The outward inclination angle of the lower side of the film pressing wheel 111 is 10-50 degrees, and the outward inclination angle of the rear side of the film pressing wheel 111 is 10-30 degrees. The frame assembly 2 is provided with a cross shaft, the cross shaft is sleeved with a third sleeve 113 which can slide left and right relative to the cross shaft, and the third sleeve 113 and the cross shaft are locked through screws. The upper end of the third strut 112 is connected with a third sleeve 113. The film cylinder device 10 is positioned in front of the film pressing wheel device 11 and comprises a film cylinder sleeve rod 101, and two ends of the film cylinder sleeve rod 101 are connected with the transverse shaft through connecting rods. Two film cylinder limiting blocks 102 which are oppositely arranged are arranged on the film cylinder sleeve rod 101, and conical surfaces are arranged on opposite parts of the two film cylinder limiting blocks 102 and are used for extending into two ends of the film cylinder to position the film cylinder. The distance between the two film tube limiting blocks 102 is adjustable so as to adapt to film tubes with different lengths. During operation, operating personnel makes above-mentioned frame assembly 2's universal joint transmission shaft 6 rotatory through the power take off control rod in tractor 13's driver's cabin, promotes left and right swing arm 14 through the hydraulic pressure hoisting device hydraulic pressure in the tractor driver's cabin, and then adjusts the height of press mold wheel 111, thereby the realization is to pushing down of plastic film. The two soil-throwing film pressing devices 3 are symmetrically arranged on the two sides of the frame assembly 2. Each soil-throwing and film-pressing device 3 comprises a hilling knife 32 rotating around a transverse axis and a mud guard 31 positioned outside the hilling knife 32. The film spreading machine can realize the effect of 'one machine for two purposes' (namely spreading the film and hilling).

The soil-throwing and film-pressing device 3 further comprises a spoon-shaped cutter 33 which rotates coaxially with the hilling knife 32. The spoon-shaped cutter 33 is located inside the mud guard 31 and outside the hilling knife 32. The blades of the hilling knife 32 are four, and the blades of the spoon-shaped knife 33 are two. The mud guard cover 31 is arranged at the front, the rear, the outer side and the upper side of the hilling knife 32 and also blocks the upper part of the inner side of the hilling knife 32, so that when the hilling knife 32 is used for turning up soil materials, the height of the soil materials flying out of the inner side of the mud guard cover 31 is only slightly higher than that of a mulching film, the fixation of soil covering on the mulching film can be ensured, the situation that the soil materials are covered above the mulching film on the upper part of a ridge due to the fact that the turning-up height of the soil materials is too high is avoided, and the soil covering area for fixing.

The frame assembly 2 is provided with a transmission assembly which is linked with the soil throwing and film pressing device 3. The transmission assembly comprises a bevel gear transmission case 5, the input end of the bevel gear transmission case 5 is provided with a universal joint transmission shaft 6 which is used for being connected with the power output end of a tractor 13, and the output end of the bevel gear transmission case 5 is linked with the soil-throwing film pressing device 3 through a transmission mechanism 4.

The transmission 4 comprises a sprocket transmission 42 and a chain transmission case 43. The sprocket drive mechanism 42 includes a chain and a drive sprocket and a driven sprocket respectively disposed one above the other. The driven chain wheel rotates coaxially with the hilling knife 32 and the spoon-shaped knife 33. The driving chain wheel is connected with the bevel gear transmission box 5 through a second width adjusting mechanism.

The second width adjustment mechanism includes a telescopic transmission shaft 41 and a telescopic sleeve 44 located outside the telescopic transmission shaft 41. The telescopic transmission shaft 41 is of a spline shaft sleeve structure and comprises a spline sleeve and two spline shafts. Two spline shafts are respectively inserted into two ends of the spline housing, one spline shaft is connected with the output end of the bevel gear transmission case 5, and the other spline shaft is coaxially connected with a driving sprocket of the sprocket transmission mechanism 42. Two ends of the telescopic sleeve 44 are respectively connected with the shell of the bevel gear transmission case 5 and the chain transmission case 43, the telescopic sleeve 44 comprises two sections of protective sleeves, and the two sections of protective sleeves are locked by screws.

The tail wheel assembly 1 comprises two tail wheels 15 which are symmetrically arranged left and right, and each tail wheel 15 is connected with the rack assembly 2 through a tail wheel bracket 16. The tail wheel bracket 16 can slide left and right relative to the frame assembly 2 to adjust the distance between the two tail wheels 15. The tail wheel support 16 is provided with a second crank handle 17 and a screw nut lifting structure, and the second crank handle 17 is connected with a screw in the screw nut lifting structure. The height of the tail wheel 15 is adjusted by rotating the second crank 17.

The operation method of the high-ridge tobacco film paving machine of the embodiment is as follows, so that the high-ridge tobacco film paving machine moves along the extending direction of the ridge, the upper portion of the ridge is leveled by the shaping device 8 on the ridge, and then the groove is formed on slopes on two sides of the ridge by the groove pressing device 9. The film pressing wheel device 11 presses the edge of the film released by the film cylinder into the groove, and the soil is covered in the groove by the soil throwing and film pressing device 3 to compact the film.

The earth-throwing cutter includes a hilling cutter 32 and a spoon-type cutter 33. The rotary power of the hilling knife 32 and the spoon-shaped knife 33 is transmitted to the middle transmission bevel gear box 5 through the power output shaft of the tractor 13 through the universal joint transmission shaft 6, and then transmitted to the knife shaft through chain transmission to drive the soil throwing knife on the knife shaft to rotate. The rotating speed of the cutter shaft is 260-285 r/min, and the soil throwing cutter and the machine move in the reverse direction. The soil throwing cutter sequentially enters soil according to the distance from the axis line, the spoon-shaped cutter 33 is used for loosening soil at the bottom of the ploughed ditch and increasing the soil throwing amount, and the hilling cutter 32 pushes the loosened soil to the edge of the ridge. Under the action of the centrifugal force of the soil throwing cutter, the soil throwing cutter combination throws up the broken soil at the bottom of the ditch, and the broken soil is guided by the mud blocking cover 31 to fall to the position of the mulching film required by the mulching film covering agriculture, and the requirement of national NY/986 plus 2006 film paving machine operation quality is met, so that effective soil covering and film pressing are realized.

This membrane machine is spread to high ridge of tobacco is before work, according to the installation of following step and adjustment:

the film spreading machine is connected with a tractor 13 by adopting three-point suspension, and particularly, the film spreading machine is installed on the rear traction of a medium tractor through an upper pull rod 12 and a left swing arm 14 and a right swing arm 14. The power output shaft is arranged and is connected with the universal joint transmission shaft 6 and the bevel gear transmission box 5 input spline shaft in sequence to drive the soil throwing cutter film pressing device 3 of the film spreading machine.

And installing a mulching film used by the film barrel and adjusting the rotation height of the mulching film around the movable support plate.

According to the specifications of the laid mulching film, the center distances of the ridge shaping device 8, the furrow pressing wheel 91, the film pressing wheel 111 and the soil throwing and film pressing device 3 are adjusted, and meanwhile, the ridge shaping width and height are adjusted according to the ridge shape.

The mulching film passes through the film cylinder and the film pressing wheel 111 to the starting point.

When the medium tractor runs in no-load mode, the standby tool rotates normally, and the attached speed change is slow, and the medium tractor starts to work. The working speed is more than or equal to 5km/h (about 1.4 m/s).

The lifting of the film spreading machine is controlled to control the ground working limit and the lifting height of the whole machine.

And (5) pausing after starting to work for 2-3m, checking the film laying effect, adjusting to a required value, and continuing to work.

The front is observed during working so as to correct the walking direction, and the effects of shaping, pressing a ditch, withdrawing a film, throwing soil and pressing the film on a ridge are also observed so as to correct and adjust in time.

When the field is transferred, the output power of the medium tractor is firstly separated, and the soil throwing cutter stops rotating at the moment. Then the hydraulic lifting is operated to lift the film spreading machine so as to walk through the ditch and the field ridge.

When the road surface normally goes, cut off power take off, mention the take-up and take the altitude, frame tailwheel 15 transfers to the liftoff height of throwing native cutter and is 10 ~ 13cm and lock, avoids damaging the cutter.

The present invention has been described above with reference to the preferred embodiments, but the present invention is not limited to the above-disclosed embodiments, and various modifications, equivalent combinations, which are made according to the essence of the present invention, should be covered.

Claims (9)

1. A tobacco high-ridge film paving machine comprises a rack assembly (2) and is characterized in that an upper-ridge shaping device (8), a furrow pressing device (9), a film pressing wheel device (11) and a soil throwing and film pressing device (3) are sequentially arranged on the rack assembly (2) from front to back; the frame assembly (2) is also provided with a film cylinder device (10) and a traveling mechanism.

2. A tobacco high-ridge film spreading machine as claimed in claim 1, wherein the ridge shaping device (8) comprises a shaping scraper (81), and the shaping scraper (81) is connected with the frame assembly (2) through a first supporting rod (82); the lower part of the shaping scraper blade (81) is provided with an upward concave gap, and the tail parts of the left side and the right side of the shaping scraper blade (81) are inclined backwards.

3. A tobacco high ridge film spreading machine as claimed in claim 1, wherein the furrowing device (9) comprises two furrowing wheels (91) arranged in parallel, and the two furrowing wheels (91) are connected with the frame assembly (2) through a second supporting rod (92); the tread of the creasing wheel (91) is provided with an annular groove arranged around the axis thereof.

4. The tobacco high-ridge film spreading machine according to claim 1, wherein the film pressing wheel device (11) comprises two film pressing wheels (111) which are arranged in a bilateral symmetry manner, and the film pressing wheels (111) are connected with the frame assembly (2) through third supporting rods (112); the lower side and the rear side of the film pressing wheel (111) are inclined outwards; the outward inclination angle of the lower side of the film pressing wheel (111) is 10-50 degrees, and the outward inclination angle of the rear side of the film pressing wheel (111) is 10-30 degrees.

5. The tobacco high-ridge film spreading machine according to claim 1, wherein the two soil-throwing film pressing devices (3) are arranged on two sides of the frame assembly (2) in a bilateral symmetry manner; each soil throwing and film pressing device (3) comprises a hilling knife (32) rotating around a transverse axis and a mud blocking cover (31) positioned on the outer side of the hilling knife (32).

6. A tobacco high ridge film-laying machine as claimed in claim 5, characterized in that said earth-throwing film-pressing device (3) further comprises a spoon-shaped cutter (33) rotating coaxially with the hilling knife (32); the spoon-shaped cutter (33) is positioned on the inner side of the mud blocking cover (31) and is positioned on the outer side of the hilling cutter (32).

7. A tobacco high ridge film spreading machine according to claim 5, characterized in that the ridge shaping device (8), the furrowing device (9) and the film pressing wheel device (11) are provided with a width adjusting mechanism and a height adjusting mechanism, and the soil throwing and film pressing device (3) is provided with a width adjusting mechanism.

8. The tobacco high-ridge film spreading machine according to any one of the claims 1 to 6, wherein the walking mechanism is a tail wheel assembly (1) arranged at the tail part of the frame assembly (2); the front part of the frame assembly (2) is provided with a connecting assembly used for being connected with a tractor (13); and a transmission assembly linked with the soil throwing and film pressing device (3) is arranged on the frame assembly (2).

9. The tobacco high-ridge film spreading machine according to claim 8, wherein the transmission assembly comprises a bevel gear transmission case (5), a universal joint transmission shaft (6) used for being connected with a power output end of a tractor (13) is arranged at an input end of the bevel gear transmission case (5), and an output end of the bevel gear transmission case (5) is linked with the soil throwing and film pressing device (3) through a transmission mechanism (4).

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