CN107172900B - Full-automatic turf harvester - Google Patents
Full-automatic turf harvester Download PDFInfo
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- CN107172900B CN107172900B CN201710395816.2A CN201710395816A CN107172900B CN 107172900 B CN107172900 B CN 107172900B CN 201710395816 A CN201710395816 A CN 201710395816A CN 107172900 B CN107172900 B CN 107172900B
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Abstract
The invention discloses a full-automatic turf harvester which comprises a cutting mechanism, a transmission mechanism, a rolling mechanism, a stacking area and a power mechanism, wherein the cutting mechanism is arranged close to the ground and used for mowing; the rolling mechanism consists of an upper group of conveying tracks and a lower group of conveying tracks which are driven in the same direction; the stacking mechanism comprises a spring pressing plate, a front baffle plate and a rear baffle plate which are correspondingly arranged on two sides of the spring pressing plate, and a screw rod for pushing the baffle plate to move, and a screw rod motor; the spring pressing plate moving path is provided with a first limit switch for controlling the screw motor, and the front baffle moving path is provided with a second limit switch for controlling the screw motor to work reversely. The invention can realize the integrated functions of cutting, peeling, rolling and stacking the turfs, has simple operation, simultaneously harvests a plurality of turfs, solves the problem of time and labor waste in manual cutting correction, reduces a great amount of labor cost and effectively improves the production efficiency.
Description
Technical Field
The invention belongs to the field of garden machinery, and particularly relates to a full-automatic turf harvester.
Background
The turf is an important component of landscaping facilities, and most of the turf paved in the existing gardens is planted and cultivated in a concentrated manner in a grassland and transplanted to a greening area. In the transplanting work, the planted turf is first cut and lifted by a turf machine, and the turf is separated from the soil and cut into a strip shape. Because the used lawn mower adopts walking-type weeding, the following disadvantages exist: the operation is laborious and time-consuming, the labor force is large, and the working efficiency is low; the single grass-lifting function is realized, and the grass-lifting sheets are only flaky and are manually cut, trimmed and rolled; time and labor are wasted, and harvesting is very inconvenient.
Disclosure of Invention
The invention aims to provide a full-automatic turf harvester capable of realizing the integration of turf cutting, drafting, rolling and stacking.
The technical solution for realizing the purpose of the invention is as follows:
a full-automatic turf harvester comprises a cutting mechanism, a transmission mechanism, a rolling mechanism, a stacking area and a power mechanism, wherein the cutting mechanism is arranged close to the ground and used for mowing, the transmission mechanism is connected with the cutting mechanism, the rolling mechanism, the stacking mechanism and the stacking area are sequentially arranged along the turf conveying direction, and the power mechanism is used for driving the harvester to move;
the rolling mechanism consists of an upper group of conveying tracks and a lower group of conveying tracks which are driven in the same direction;
the stacking mechanism comprises a spring pressing plate, front baffle plates and rear baffle plates, a screw rod and a screw rod motor, wherein the spring pressing plate is used for supporting and placing grass and can move up and down, the front baffle plates and the rear baffle plates are correspondingly arranged on two sides of the spring pressing plate and used for pushing the grass to a stacking area, and the screw rod motor is connected with the front baffle plates and used for pushing the baffle plates to move in parallel with the ground;
the spring pressing plate corresponds to the output port of the rolling mechanism in position; the motion path of the spring pressing plate is provided with a first limit switch for controlling the screw motor to work, and the first limit switch is positioned at a position not higher than the bottom of the front baffle and is triggered by the spring pressing plate; the front baffle plate moving path is provided with a second limit switch for controlling the screw motor to work reversely, and the projection of the second limit switch in the vertical direction is positioned on the spring pressing plate.
The cutting mechanism comprises an equidistant cutting device, a vertical cutting device and a parallel cutting device which are reversely and sequentially arranged along the advancing direction of the harvester.
The stacking area is provided with a guide strip used for penetrating through the front baffle plate and the rear baffle plate, and the front baffle plate and the rear baffle plate slide along the guide strip in parallel with the ground.
And a second limit switch triggered by the current baffle plate horizontally moving to the edge of the spring pressing plate, which is close to the stacking area, is arranged on the guide bar.
The equidistant cutting device comprises a saw blade knife, a transmission device and a saw blade knife motor which are sleeved on the rotating shaft at equal intervals, and the saw blade knife motor drives the rotating shaft to rotate through the transmission device.
The vertical cutting device comprises a cutting-off knife which is arranged vertical to the ground, a cutting-off knife motor and a cam, wherein the cutting-off knife motor drives the cutting-off knife to vertically move up and down.
The motor output shaft of the cutting knife is connected with a cam through a coupler, a circle of sliding groove is formed in the outer edge of the cam, the cam is connected with the cutting knife through a pull rod, one end of the pull rod is connected with the cutting knife, and the protruding portion of the other end of the pull rod is embedded into the sliding groove to be matched with the sliding groove.
The parallel cutting device comprises a saw blade knife which is arranged in parallel and clings to the ground, a saw blade knife motor which drives the saw blade knife to move in parallel, and a crank rocker mechanism, wherein an output shaft of the saw blade knife motor is connected with the crank rocker mechanism, and the crank rocker mechanism is connected with the saw blade knife.
The power mechanism is a crawler wheel, the bottom of the harvester is connected with suspensions which are arranged in parallel through a height regulator, and the crawler wheel is sleeved at the end part of the parallel suspensions which are positioned at the same side.
The harvester also comprises a piling carriage for piling the turf, and the piling carriage is connected with the piling area.
Compared with the prior art, the invention has the remarkable advantages that:
1. the invention can realize the integrated functions of cutting, peeling, rolling and stacking the turfs, has simple operation, simultaneously harvests a plurality of turfs, solves the problem of time and labor waste in manual cutting correction, reduces a great amount of labor cost and effectively improves the production efficiency.
2. The automatic stacking mechanism comprises the front baffle plate, the rear baffle plate, the spring pressing plate and the limit switch arranged on the moving path of the pressing plate, the rolled turf falls to the spring pressing plate, the spring pressing plate is pressed down under the gravity action of the turf to a certain height to trigger the limit switch, the front baffle plate automatically pushes the turf to a stacking area, the turf is reset after being pushed, and the turf stacking is repeated repeatedly, so that the automatic stacking mechanism is quite intelligent, a large amount of manpower and material resources are saved, and the production efficiency is further improved.
3. The cutting mechanism comprises three grass cutting devices, namely an equidistant cutting device, a vertical cutting device and a parallel cutting device, and can cut turf in equal length and equal width so as to facilitate subsequent arrangement and collection.
4. The crawler wheel drives the harvester to travel, so that the harvester can well navigate in the field smoothly, the damage of the equipment to the field is reduced, and the field can be freely replaced without the help of other vehicles; meanwhile, the height regulator is arranged, so that the device can be suitable for cutting turf with different depths, meets the use requirements of turf planting bases with various specifications, and is suitable for popularization.
Drawings
Fig. 1 is a top view of the structure of the present invention.
FIG. 2 is a schematic view of a cutting mechanism according to the present invention.
FIG. 3 is a top view of the cutting mechanism of the present invention.
Fig. 4 is a front view of the structure of the present invention.
FIG. 5 is a schematic diagram of the rolling mechanism of the present invention.
FIG. 6 is a schematic diagram of the power mechanism of the present invention.
In the figure: 1-a cutting mechanism; 2-a transmission mechanism; 3-a rolling mechanism; 4-stacking mechanism; a 5-stacking zone; 6-crawler wheels; 7-stacking carriages; 8-saw blade knife; 9-a saw blade motor; 10-a saw blade motor; 11-saw blade knife; 12, cutting off a knife; 13-saw blade knife drive; 14-a cutter motor; 15-eccentric wheel; 16-crank; 17-follower; 18-a tailgate; 19-spring press plate; 20-forward conveyor one; 21-a guide bar; 22-a second forward conveyor belt; 23-a transmission mechanism motor; 24-lead screw motor; 25-screw rod; 26-front baffle; 27-a spring; 28-height adjuster; 29-suspension.
Detailed Description
The invention will be described in further detail with reference to specific embodiments and drawings.
1-6, a full-automatic turf harvester comprises a cutting mechanism 1, a transmission mechanism 2, a rolling mechanism 3, a stacking mechanism 4, a stacking area 5 and a power mechanism, wherein the cutting mechanism 1 is arranged close to the ground and used for mowing, the transmission mechanism 2 is connected with the cutting mechanism, the rolling mechanism 3, the stacking mechanism 4 and the stacking area 5 are sequentially arranged along the turf conveying direction, and the power mechanism is used for driving the harvester to travel;
further, the cutting mechanism 1 comprises an equidistant cutting device, a vertical cutting device and a parallel cutting device which are sequentially arranged in the reverse direction along the travelling direction of the harvester, and the equidistant cutting of the turf and the cutting of the turf from the ground surface are realized through the three structures.
Specifically, as shown in fig. 2, a rotating shaft is arranged at the bottom of the harvester, the equidistant cutting device comprises a saw blade knife 8, a transmission device 13 and a saw blade knife motor 9 which are sleeved on the rotating shaft at equal intervals, and the saw blade knife motor 9 drives the rotating shaft to rotate through the transmission device 13 so as to drive the saw blade knife 8 to rotate, so that the turf is cut into strips with equal width.
The vertical cutting device comprises a cutting knife 12 which is arranged vertical to the ground, a cutting knife motor 14 and a cam, wherein the cutting knife motor 14 drives the cutting knife 12 to vertically move up and down, specifically, an output shaft of the cutting knife motor 14 is connected with the cam through a coupler, a circle of sliding grooves are formed in the periphery of the cam, the cam is connected with the cutting knife 12 through a pull rod, one end of the pull rod is connected with the cutting knife 12, and a convex part at the other end of the pull rod is embedded into the sliding grooves to be matched with the sliding grooves; when the cutter motor 14 works, the cam rotates, and the pull rod moves up and down along with the cam, so that vertical up and down cutting of the cutter 12 is realized, the cutter motor is used for cutting off the turf with the same width in the last step, and the equal width turf can be cut into equal lengths by controlling the travelling speed of the harvester and the cutting frequency of the cutter 12.
Referring to fig. 3, the parallel cutting device comprises a saw blade knife 11 which is arranged in parallel and clings to the ground, a saw blade knife motor 10 for driving the saw blade knife to move in parallel, and a crank rocker mechanism, wherein an output shaft of the saw blade knife motor 10 is connected with the crank rocker mechanism, and the crank rocker mechanism is connected with the saw blade knife 11; further, the crank rocker mechanism consists of an eccentric wheel 15 and a crank 16, wherein the eccentric wheel 15 is arranged on the output shaft of the saw blade knife motor 10, one end of the crank 16 is connected with the eccentric wheel 15, the other end of the crank 16 is connected with one end of the saw blade knife 11, the other end of the saw blade knife 11 is connected with a driven piece 17, the middle part of the crank 16 is rotationally connected on the harvester body to form a lever, and the end part of the driven piece 17 is hinged with the harvester body to play a role in assisting in fixing the saw blade knife 11; when the saw blade knife motor 10 works, the eccentric wheel 15 rotates to drive one end of the crank 16 to move left and right relative to the ground, and as the middle part of the crank 16 is rotationally connected with the machine body, the crank 16 is equivalent to a lever, and therefore the other end of the crank 16 also reciprocates left and right relative to the ground, and further the saw blade knife 11 can move left and right in a small-amplitude and fast way, and as the saw blade knife 11 is tightly attached to the ground, turf with equal length and width can be cut off from the ground.
The cut sod is transported by the transport mechanism 2 to the rolling mechanism 3 for rolling. The conveying mechanism 2 consists of a first forward conveying belt 20 and a second forward conveying belt 22 which are connected with the cutting mechanism 1, turf enters the second forward conveying belt 22 from the first forward conveying belt 20 and then enters the rolling mechanism 3, the rolling mechanism 3 consists of an upper conveying belt and a lower conveying belt which are driven in the same direction, the conveying belts in the conveying mechanism 2 and the rolling mechanism 3 are driven by a conveying mechanism motor 23, as shown in fig. 5, the upper conveying belt in the rolling mechanism 3 is obliquely arranged, the lower conveying belt is horizontally arranged, an acute angle is formed between the upper conveying belt and the lower conveying belt, a gap allowing turf to pass is reserved at the minimum included angle of the two conveying belts, and because the upper conveying belt and the lower conveying belt move in the same direction, in the embodiment, the lower surface of the upper conveying belt and the upper surface of the lower conveying belt are driven in the opposite directions, and the upper surface of the upper conveying belt is driven in the anticlockwise direction during use, and the upper surface of the upper conveying belt and the lower conveying belt are driven in the opposite directions, so that the passing flat turf is rolled by the reverse movement. The sod after the rolling treatment can also effectively reduce the occupied space of the sod, is convenient for transportation and is beneficial to protecting the sod.
The rolled sod roll enters a stacking mechanism 4, and referring to fig. 4, the stacking mechanism 4 comprises a spring pressing plate 19 for supporting and placing the sod and capable of moving up and down, a front baffle 26 and a rear baffle 18 which are correspondingly arranged at two sides of the spring pressing plate and used for pushing the sod to a stacking area 5, a screw rod 25 connected with the front baffle and used for pushing the baffle to move in parallel with the ground, and a screw rod motor 24 for driving the screw rod; further, a screw nut is rotatably sleeved on the screw 25, and the screw nut is connected with the front baffle 26.
The spring pressing plate 19 corresponds to the position of the output port of the rolling mechanism 3, the turf directly falls on the spring pressing plate 19 after being rolled by the rolling mechanism, the front baffle plate 26 is positioned at one side close to the rolling mechanism 3, and the rear baffle plate 18 is positioned at one side far away from the rolling mechanism 3; the first limit switch for controlling the screw motor 24 to work is arranged on the movement path of the spring pressing plate 19, the first limit switch is positioned at the position not higher than the bottom of the front baffle plate 26 and is triggered by the spring pressing plate 19, when stacking, the spring pressing plate 19 descends under the gravity action of turf, when the turf is enough and heavy enough, the spring pressing plate 19 is pressed to be not higher than the plane where the bottom of the front baffle plate 26 is positioned, the first limit switch is triggered, the screw motor 24 starts to rotate positively, the screw 25 rotates to enable a nut screwed on the screw 25 to generate backward linear motion, the front baffle plate 26 is pushed to move towards the stacking area 5 through the spring pressing plate 19, and the front baffle plate 26 pushes the turf and the rear baffle plate 28 to move towards the stacking area; the movement path of the front baffle 26 is provided with a second limit switch for controlling the screw motor 24 to work reversely, the projection of the second limit switch in the vertical direction is positioned on the spring pressing plate 19, namely, when the front baffle 26 is pushed to the edge of the spring pressing plate 19, the second limit switch is triggered, the screw motor 24 is reversed, the front baffle 26 is reset under the drive of the screw 25 and the screw nut, the rear baffle 18 is remained in the stacking area 5 to become a turf partition layer gasket, a new rear baffle 18 is manually placed and inserted, the movement is repeated, and a new round of stacking is started until the stacking area 5 is filled with turf rolls.
In order to facilitate the unloading of the sod, the stacking area 5 is provided with a detachable sod box, the sod box is arranged close to the spring pressing plate 19, the rear baffle 18 is inserted between the sod box and the spring pressing plate 19, the opening of the sod box faces the advancing direction of the harvester, after the sod box is filled with the sod, the sod box can be manually conveyed to a unified collecting area, and then the empty sod box is reloaded for the next stacking; further, the stacking area 5 is provided with guide strips 21 for passing through the front baffle 26 and the rear baffle 18, the front baffle and the rear baffle slide along the guide strips 21 in parallel with the ground, and the turf box can be placed between the guide strips 21; the second limit switch is arranged on the guide strip 21, the current baffle plate 26 horizontally moves to the edge of the spring pressing plate 19, which is close to the stacking area 5, and is triggered, so that the front baffle plate 26 can be ensured to completely push the rear baffle plate 18 and the turf to the stacking area 5, and the front baffle plate 26 can be ensured to still press one side of the spring pressing plate 19 after the pushing is finished, and the spring pressing plate 19 is prevented from being reset in advance.
Referring to fig. 6, the power mechanism is a crawler wheel 6, the bottom of the harvester is connected with parallel suspension brackets 29 through height adjusters 28, the crawler wheel 6 is sleeved at the end part of the parallel suspension brackets 29 on the same side, specifically, four height adjusters 28 are symmetrically arranged at two sides of the bottom of the harvester, two height adjusters are combined into a group, the bottom of each group of height adjusters is connected with a suspension bracket 29, the two suspension brackets 29 are arranged in parallel, and the crawler wheel 6 is sleeved at the end part of the two suspension brackets 29 on the same side. The height adjuster can be used for adjusting the heights of two groups simultaneously and can be independently used for adjusting one group, so that the heights and angles of the cutting tool bit are changed, and the height adjuster can be used for cutting turf with different depths, so that cutting requirements of different areas and different varieties are met.
The harvester still includes the stack carriage 7 that is used for piling up the turf, stacks carriage 7 and stacks district 5 and link to each other, stacks district 5 and is the vanning district, realizes the vanning in this district, after filling, needs the manual work to carry the turf case that fills up the turf roll to stack carriage 7 in, places new turf case in stack district 5, stacks carriage 7 and is equivalent to a temporary warehouse, stacks carriage 7 after filling up, can take off stack carriage 7 and tail hang on the transport vechicle, carries out sales transportation, changes the carriage and can continue to carry out turf harvesting work.
The working process comprises the following steps: starting the harvester, running all motors of the harvester, starting to cut the turf, running and cutting the turf by the cutting knife after the turf is cut off by the cutting knife for a certain length, conveying the cut turf to the rolling mechanism by the conveying mechanism, rolling the turf by the rolling mechanism, directly falling into the rear stacking mechanism, and after the stacking mechanism reaches a certain weight, backing the vertically arranged turf by a working unit to the stacking area 5, manually conveying the vertically arranged turf to the stacking carriage 7 after the stacking area 5 is full, continuing to work, and starting to harvest a new round of turf.
The foregoing is only a preferred embodiment of the present invention, but it should not be understood that the scope of the subject matter is limited to the above examples, and all the techniques realized based on the present invention are within the scope of the present invention.
Claims (7)
1. A full-automatic turf harvester, characterized in that: the harvester comprises a cutting mechanism (1) which is arranged close to the ground and used for mowing, a transmission mechanism (2) which is connected with the cutting mechanism, a rolling mechanism (3), a stacking mechanism (4) and a stacking area (5) which are sequentially arranged along the turf conveying direction, and a power mechanism which is used for driving the harvester to travel; the rolling mechanism (3) consists of an upper group of conveying tracks and a lower group of conveying tracks which are driven in the same direction; the stacking mechanism (4) comprises a spring pressing plate (19) for supporting and placing grass and capable of moving up and down, a front baffle (26) and a rear baffle (18) which are correspondingly arranged on two sides of the spring pressing plate and used for pushing the grass to the stacking area (5), a screw rod (25) connected with the front baffle and used for pushing the front baffle to move in parallel with the ground, and a screw rod motor (24) for driving the screw rod; the spring pressing plate (19) corresponds to the position of an output port of the rolling mechanism (3); the motion path of the spring pressing plate (19) is provided with a first limit switch for controlling the screw motor (24) to work, and the first limit switch is positioned at a position not higher than the bottom of the front baffle plate (26) and is triggered by the spring pressing plate (19); a second limit switch for controlling the screw motor (24) to work reversely is arranged on the movement path of the front baffle (26), the projection of the second limit switch in the vertical direction is positioned on the spring pressing plate (19),
the cutting mechanism (1) comprises an equidistant cutting device, a vertical cutting device and a parallel cutting device which are reversely and sequentially arranged along the advancing direction of the harvester,
the stacking area (5) is provided with a guide strip (21) which is used for penetrating through a front baffle plate (26) and a rear baffle plate (18), the front baffle plate and the rear baffle plate slide along the guide strip (21) in parallel with the ground,
the guide strip (21) is provided with a second limit switch triggered by the current baffle plate (26) horizontally moving to the edge of the spring pressing plate (19) close to the stacking area (5).
2. A fully automatic sod harvester as in claim 1 wherein: the equidistant cutting device comprises a saw blade knife (8), a transmission device (13) and a saw blade knife motor (9) which are sleeved on the rotating shaft at equal intervals, and the saw blade knife motor (9) drives the rotating shaft to rotate through the transmission device (13).
3. A fully automatic sod harvester as in claim 1 wherein: the vertical cutting device comprises a cutter (12) which is arranged vertical to the ground, a cutter motor (14) which drives the cutter (12) to vertically move up and down, and a cam.
4. A fully automatic sod harvester according to claim 3 wherein: the output shaft of the cutter motor (14) is connected with a cam through a coupler, a circle of sliding grooves are formed in the periphery of the cam, the cam is connected with the cutter (12) through a pull rod, one end of the pull rod is connected with the cutter (12), and the protruding portion of the other end of the pull rod is embedded into the sliding grooves to be matched with the sliding grooves.
5. A fully automatic sod harvester as in claim 1 wherein: the parallel cutting device comprises a saw blade knife (11) which is arranged in parallel and clings to the ground, a saw blade knife motor (10) which drives the saw blade knife to move in parallel, and a crank rocker mechanism, wherein an output shaft of the saw blade knife motor (10) is connected with the crank rocker mechanism, and the crank rocker mechanism is connected with the saw blade knife (11).
6. A fully automatic sod harvester as in claim 1 wherein: the power mechanism is a crawler wheel (6), the bottom of the harvester is connected with a parallel suspension (29) through a height adjuster (28), and the crawler wheel (6) is sleeved at the end part of the parallel suspension (29) which is positioned at the same side.
7. A fully automatic sod harvester as in claim 1 wherein: the harvester further comprises a piling carriage (7) for piling the turf, and the piling carriage (7) is connected with the piling area (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710395816.2A CN107172900B (en) | 2017-05-27 | 2017-05-27 | Full-automatic turf harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710395816.2A CN107172900B (en) | 2017-05-27 | 2017-05-27 | Full-automatic turf harvester |
Publications (2)
| Publication Number | Publication Date |
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| CN107172900A CN107172900A (en) | 2017-09-19 |
| CN107172900B true CN107172900B (en) | 2023-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710395816.2A Active CN107172900B (en) | 2017-05-27 | 2017-05-27 | Full-automatic turf harvester |
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| CN (1) | CN107172900B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108100716B (en) * | 2017-12-11 | 2019-08-27 | 北京绿京华生态园林股份有限公司 | Mobile straw core winder |
| CN108040757B (en) * | 2017-12-19 | 2021-07-30 | 东阳市新意工业产品设计有限公司 | Device capable of automatically cutting turf roll |
| CN108157070B (en) * | 2017-12-28 | 2020-08-28 | 安徽大江服装服饰有限公司 | Greenery is with turf reaping apparatus |
| DE102018201164A1 (en) * | 2018-01-25 | 2019-07-25 | Robert Bosch Gmbh | cutter |
| CN108307937A (en) * | 2018-02-07 | 2018-07-24 | 芜湖精帅建设有限公司 | A kind of stubble plough |
| CN109042105B (en) * | 2018-06-28 | 2021-06-29 | 安徽智汇和科技服务有限公司 | Shovel harvesting device |
| US11160219B2 (en) * | 2019-06-07 | 2021-11-02 | Firefly Automatix, Inc. | Counterbalanced cutting head for a sod harvester |
| CN111528003B (en) * | 2020-05-26 | 2022-07-08 | 浙江振阳绝热科技股份有限公司 | Turf device is rolled up in turf plantation |
| CN112042478B (en) * | 2020-07-22 | 2022-07-29 | 盐城工学院 | Automatic roll up sod cutter of collection |
| CN114208601A (en) * | 2021-11-16 | 2022-03-22 | 严和明 | Environment-friendly turf lifting and collecting equipment for construction |
| CN114467642B (en) * | 2022-01-11 | 2024-03-01 | 岭南生态文旅股份有限公司 | Low-carbon soil obstacle grading repair system |
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| GB1183991A (en) * | 1966-06-27 | 1970-03-11 | Gerardus Johannes Brouwer | Sod Cutting Apparatus |
| NL7907054A (en) * | 1966-06-27 | 1980-01-31 | Brouwer Gerardus Johannes | Mobile turf cutting machine - has horizontal lifting blade under turf and vertically reciprocating transverse blade in front of it |
| WO1995002317A1 (en) * | 1993-07-12 | 1995-01-26 | Johannes Van Vuuren | Apparatus for the cutting of one or more grass sods and a method for the stacking thereof |
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| Publication number | Publication date |
|---|---|
| CN107172900A (en) | 2017-09-19 |
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