CN216982454U - Paddy field ridger that collocation formula was used - Google Patents

Paddy field ridger that collocation formula was used Download PDF

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Publication number
CN216982454U
CN216982454U CN202220306700.3U CN202220306700U CN216982454U CN 216982454 U CN216982454 U CN 216982454U CN 202220306700 U CN202220306700 U CN 202220306700U CN 216982454 U CN216982454 U CN 216982454U
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China
Prior art keywords
plough
plow
shaft
plate
driving
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CN202220306700.3U
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Chinese (zh)
Inventor
李秉旭
周市林
黄嘉骏
宋鹏
崔鹏
霍同涛
董玉州
李旭
曹明浩
刘帅
刘向东
王慧
杜佳楠
李永春
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Jiamusi Qianxing Agricultural Machinery Research And Development Co ltd
Jiamusi University
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Jiamusi Qianxing Agricultural Machinery Research And Development Co ltd
Jiamusi University
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Abstract

The utility model discloses a paddy field ridger used in a matching way, which comprises a connecting suspension, wherein a mounting cross beam is welded in the middle of the connecting suspension, plow standard clamping wires are symmetrically clamped at both ends of the mounting cross beam, a fixed connecting plate is arranged at the bottom of the plow standard clamping wires through nuts, a connecting plow standard is welded in the middle of the bottom end of the fixed connecting plate, a plow standard reinforcing plate is welded at one side of the top of the connecting plow standard, a plow standard vertical plate is welded at one side of the bottom of the connecting plow standard, and a plow standard arc plate is arranged at one side of the plow standard vertical plate. Thereby optimizing the use process of the ridger.

Description

Paddy field ridger that collocation formula was used
Technical Field
The utility model relates to the technical field of agricultural appliances, in particular to a matched paddy field ridger.
Background
The ridge building machine is one of agricultural machines necessary for agriculture, water and forestry, is convenient and quick, saves a large amount of manpower and material resources, is a ridge building machine which is one of agricultural machines necessary for agriculture, water and forestry, is an agricultural machine, is developed successfully at present, is produced in batches, has obtained national patents, and comprises a frame, a depth wheel, ridge ploughs, a suppression former, a traction frame and the like, wherein the ridge ploughs are fixed on an installation seat through locking screws, the installation seat is fixed on the frame through U-shaped screws, the suppression former is fixed on a square shaft through square holes, and the square shaft is connected to the frame through a bearing with a seat;
however, the existing stalk building machine needs to manually unscrew screws to lift up and down in the use process, so that the efficiency is extremely low when the stalk building machine is used, an operator cannot work continuously, and meanwhile, the stalk building machine is difficult to soil and form, and built ridges are easy to loosen and loose, so that the ridge building efficiency is low, and the adaptability is poor.
SUMMERY OF THE UTILITY MODEL
The utility model provides a paddy field ridger used in a matching way, which can effectively solve the problems that the ridge building machine provided in the background technology is difficult to form and loose and not firm due to the fact that the ridge building machine is difficult to put on soil and the built ridge is easy to loosen and not firm when used, and the ridge building efficiency is low and the adaptability is poor due to the fact that the ridge building machine cannot work continuously because screws need to be unscrewed manually in the using process.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a paddy field ridger that collocation formula was used, hangs including connecting, it has the installation crossbeam to connect to hang the middle part welding, the equal symmetrical joint in installation crossbeam both ends has the plow standard card silk, fixed even board is installed through the nut in plow standard card silk bottom, fixed even board bottom middle part welding has the connection plow standard, the welding of connection plow standard top one side has the plow standard reinforcing plate, it has the plow standard riser to connect plow standard bottom one side welding, plow standard riser one side is provided with the plow standard arc board, there is the drive coulter plow standard one side through the screw installation, the drive coulter front end has the drive plow point through the screw installation, drive coulter afterbody fixedly connected with drive plough piece.
Preferably, a connecting column is arranged on one side of the connecting suspension, the outer side of the plough column clamping wire and the outer side of the mounting cross beam are tightly attached, the inner side of the driving plough piece is integrally in an arc shape, the driving plough piece is integrally distributed in an inclined manner, and the tail part between the plough support vertical plate and the plough support arc plate is reinforced through a plough support supporting plate.
Preferably, installation crossbeam top middle part fixed mounting has main gear box, main gear box one side output shaft tip fixedly connected with drive sprocket, installation crossbeam one side hanging beam tail end bottom fixedly connected with connects the riser, it is connected with the rotary tillage arbor to connect riser one side middle part through the bearing rotation, the rotary tillage arbor outside has the positive rotary tillage sword along the even fixed mounting of circumferencial direction, the driven sprocket has been cup jointed to the corresponding connection riser one side position department of rotary tillage arbor tip, the cladding has drive chain between the drive sprocket and the driven sprocket outside.
Preferably, the input shaft of the main gearbox is connected with the output shaft of the agricultural locomotive, the connecting vertical plates comprise two connecting vertical plates, the two connecting vertical plates are symmetrically distributed along the center plane of the mounting cross beam, and the rotary tillage positive blades are all located in the area between the two driving plough blades.
Preferably, the end part of the output shaft at the other side of the main gearbox is connected with an auxiliary gearbox, one end of the output shaft of the auxiliary gearbox is connected with a transmission inclined shaft through a universal coupling, and the end part of the transmission inclined shaft is connected with a transmission box through the universal coupling;
the installation crossbeam one side tip rotates through the installation pivot and is connected with the compaction bevel, the compaction bevel tip rotates through rolling bearing and is connected with the compression roller axle, the rotatory compression roller of compression roller axle outside middle part fixedly connected with, the compactor is all installed through the bolt at rotatory compression roller outside both ends, it hangs the top middle part and rotates through the connecting seat and is connected with hydraulic telescoping rod to connect, and the hydraulic telescoping rod bottom is passed through the connecting seat and is connected with the rotation of compaction bevel top middle part.
Preferably, the bottom of the auxiliary gearbox is fixedly connected with the top of the mounting cross beam, reinforcing triangular plates are uniformly welded on the inner side of the compactor along the circumferential direction, a plurality of groups of connecting holes are axially formed in the inner side of the compactor, the connecting holes in the compactor correspond to the mounting holes in the outer side of the rotary compression roller, and the end part of the compression roller shaft is connected with the output shaft of the transmission case.
Compared with the prior art, the utility model has the beneficial effects that: the utility model has scientific and reasonable structure and safe and convenient use:
1. the connecting suspension and the mounting cross beam are driven to move forwards by the agricultural locomotive, so that the ridge building machine is driven to move forwards as a whole, the connecting plow standard is fixed to the bottom of the mounting cross beam through the plow standard clamping wires and the fixing connecting plate, the plow standard supporting arc plate is driven through the plow standard supporting vertical plate, the plow standard is driven, the plow blade is driven, the plow tip is driven, the plow standard is driven to move, soil in a field is turned upwards and gathered towards the middle in the process of synchronous movement of the plow standard, the position of the connecting plow standard at the bottom of the mounting cross beam can be adjusted through the plow standard clamping wires and the fixing connecting plate, so that the interval and the position of the driving plow standards at two sides are adjusted, the soil turning range is adjusted, the soil utilization amount of a ridge is ensured, meanwhile, the area of the driving plow standard is increased, the soil gathering effect is effectively improved, and the use process of the ridge building machine is optimized.
2. The output shaft through agricultural locomotive drives the main gear box, and then drives driving sprocket through the main gear box and rotates, drive driven sprocket through drive chain and rotate, the rotation through driven sprocket drives the rotary tillage arbor and rotates, and drive the rotary tillage positive sword at the rotation in-process of rotary tillage arbor and carry out synchronous rotation, and then mix the soil after the heap is gathered to the drive plough piece in the rotation in-process of rotary tillage positive sword, thereby will gather the big clod in the heap soil and smash, thereby realize the effect of loosening the soil, the normal clear of follow-up soil compaction process has been ensured, the effectual soil that has improved the ridge in-process gathers the heap effect.
3. The compaction inclined frame is driven to swing up and down by the extension and retraction of the hydraulic telescopic rod, so that the height of the rotary press roller is adjusted, further realizes the adjustment of the height and the compactness of the ridge through the adjustment of the rotary compression roller, optimizes the adjustment mode of the ridge making machine, leads the adjustment process of the ridge making machine to be more rapid and convenient, the auxiliary gearbox is driven by the main gearbox, the transmission inclined shaft is driven by the auxiliary gearbox to rotate, the transmission box is driven by the transmission inclined shaft, further, the transmission case drives the compression roller shaft and all components on the compression roller shaft to synchronously rotate, and the compression roller shaft, the rotary compression roller and the compactor synchronously rotate, so that the shaping and compaction of the ridge can be realized, the convenience of the ridge building process is effectively improved, meanwhile, the position of the compactor on the rotary compression roller is adjusted, so that the width of the ridge can be quickly adjusted, and the use convenience of the ridge making machine is further improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.
In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the construction of the installation of the compactor of the present invention;
FIG. 3 is a schematic view of the construction of the connecting shank mount of the present invention;
FIG. 4 is a schematic view of the structure of the installation of the rotary tillage positive blade of the present invention;
FIG. 5 is a schematic view of the construction of the roll shaft installation of the present invention;
reference numbers in the figures: 1. connecting and hanging; 2. mounting a cross beam; 3. clamping a plow standard; 4. fixing the connecting plate; 5. connecting the plough column; 6. a plow standard reinforcement plate; 7. a vertical plate is ploughed; 8. a plough supporting arc plate; 9. driving the coulter; 10. driving the plough tip; 11. driving the plough blade; 12. a main gear box; 13. a drive sprocket; 14. connecting a vertical plate; 15. a rotary tillage cutter shaft; 16. rotary tillage positive blades; 17. a driven sprocket; 18. a drive chain; 19. a sub-transmission case; 20. a transmission oblique shaft; 21. a transmission case; 22. compacting the inclined frame; 23. a compression roller shaft; 24. rotating the press roll; 25. a compactor; 26. a hydraulic telescopic rod.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example (b): as shown in figures 1-5, the utility model provides a technical scheme, a paddy field ridger used in a matching way comprises a connecting suspension 1, a mounting cross beam 2 is welded in the middle of the connecting suspension 1, plow standard clamping screws 3 are symmetrically clamped at both ends of the mounting cross beam 2, a fixed connecting plate 4 is arranged at the bottom of the plow standard clamping screws 3 through nuts, a connecting plow standard 5 is welded in the middle of the bottom end of the fixed connecting plate 4, a plow standard reinforcing plate 6 is welded at one side of the top of the connecting plow standard 5, a plow standard vertical plate 7 is welded at one side of the bottom of the connecting plow standard 5, a plow standard arc plate 8 is arranged at one side of the plow standard vertical plate 7, a driving plow cutter 9 is arranged at one side of the plow standard arc plate 8 through screws, a driving plow tip 10 is arranged at the front end of the driving plow cutter 9 through screws, a driving plow blade 11 is fixedly connected at the tail of the driving plow cutter 9, a connecting column is arranged at one side of the connecting suspension 1, the outer side of the plow standard clamping screws 3 is tightly attached to the outer side of the mounting cross beam 2, the inner side of a driving plough piece 11 is integrally in an arc shape, the driving plough piece 11 is integrally distributed in an inclined manner, the tail part between a plough support vertical plate 7 and a plough support arc plate 8 is reinforced through a plough support supporting plate, a connection suspension 1 and a mounting cross beam 2 are driven to move through an agricultural locomotive so as to drive the ridging machine to integrally move forwards, a connection plough column 5 is fixed to the bottom of the mounting cross beam 2 through a plough column clamping wire 3 and a fixed connecting plate 4, the plough support arc plate 8, a driving plough coulter 9, a driving plough point 10 and the driving plough piece 11 are driven to move through the plough support vertical plate 7, soil in a field is turned upwards and gathered towards the middle in the synchronous moving process of the driving plough knife 9, the driving plough point 10 and the driving plough piece 11, the position of the connection plough column 5 at the bottom of the mounting cross beam 2 can be adjusted through the plough column clamping wire 3 and the fixed connecting plate 4, so that the interval and the position of the driving plough knives 9 on two sides are adjusted, the soil turning range is adjusted, so that the soil consumption of the ridge is ensured, meanwhile, the gathering effect of the soil is effectively improved by increasing the area of the driving plough piece 11, and the using process of the ridge building machine is optimized;
the middle part of the top end of the mounting crossbeam 2 is fixedly provided with a main gearbox 12, the end part of an output shaft at one side of the main gearbox 12 is fixedly connected with a driving chain wheel 13, the bottom part of the tail end of a suspension beam at one side of the mounting crossbeam 2 is fixedly connected with a connecting vertical plate 14, the middle part of one side of the connecting vertical plate 14 is rotatably connected with a rotary blade shaft 15 through a bearing, the outer side of the rotary blade shaft 15 is uniformly and fixedly provided with rotary tillage positive blades 16 along the circumferential direction, the end part of the rotary blade shaft 15 is sleeved with a driven chain wheel 17 corresponding to one side of the connecting vertical plate 14, a transmission chain 18 is wrapped between the driving chain wheel 13 and the outer side of the driven chain wheel 17, an input shaft of the main gearbox 12 is mutually connected with an output shaft of an agricultural locomotive, the connecting vertical plates 14 comprise two, the two connecting vertical plates 14 are symmetrically distributed along the center of the mounting crossbeam 2, the rotary tillage positive blades 16 are all positioned in the area between the two driving plough blades 11, the main gearbox 12 is driven through the output shaft of the agricultural locomotive, the driving chain wheel 13 is driven to rotate through the main gearbox 12, the driven chain wheel 17 is driven to rotate through the transmission chain 18, the rotary tillage cutter shaft 15 is driven to rotate through the rotation of the driven chain wheel 17, the rotary tillage positive cutter 16 is driven to synchronously rotate in the rotation process of the rotary tillage cutter shaft 15, and then soil after the driving plough blades 11 are gathered and piled is stirred in the rotation process of the rotary tillage positive cutter 16, so that large soil blocks in the gathered and piled soil are broken, the soil loosening effect is achieved, the normal running of the subsequent soil compacting process is ensured, and the soil gathering and piling effect in the ridge building process is effectively improved;
the end part of the output shaft at the other side of the main gearbox 12 is connected with an auxiliary gearbox 19, one end of the output shaft of the auxiliary gearbox 19 is connected with a transmission inclined shaft 20 through a universal coupling, and the end part of the transmission inclined shaft 20 is connected with a transmission box 21 through the universal coupling;
the end part of one side of the installation beam 2 is rotationally connected with a compaction inclined frame 22 through an installation rotating shaft, the end part of the compaction inclined frame 22 is rotationally connected with a press roll shaft 23 through a rotating bearing, the middle part of the outer side of the press roll shaft 23 is fixedly connected with a rotating press roll 24, both ends of the outer side of the rotating press roll 24 are respectively provided with a compactor 25 through bolts, the middle part of the top end of the connection suspension 1 is rotationally connected with a hydraulic telescopic rod 26 through a connecting seat, the bottom end of the hydraulic telescopic rod 26 is rotationally connected with the middle part of the top end of the compaction inclined frame 22 through the connecting seat, the bottom of the auxiliary gearbox 19 is fixedly connected with the top part of the installation beam 2, reinforcing triangular plates are uniformly welded on the inner side of the compactor 25 along the circumferential direction, a plurality of groups of connecting holes are arranged on the inner side of the compactor 25 along the axial direction, the connecting holes on the compactor 25 correspond to the mounting holes on the outer side of the rotating press roll 24, and the end part of the press roll shaft 23 is connected with the output shaft of the transmission box 21, the compaction inclined frame 22 is driven to swing up and down through the extension of the hydraulic telescopic rod 26, the height adjustment of the rotary compression roller 24 is realized, the adjustment of the height and the compactness of the ridge is quickly realized through the adjustment of the rotary compression roller 24, the adjustment mode of the ridge forming machine is optimized, the adjustment process of the ridge forming machine is enabled to be faster and more convenient, the auxiliary gearbox 19 is driven through the main gearbox 12, the transmission inclined shaft 20 is driven through the auxiliary gearbox 19 to rotate, the transmission box 21 is driven through the transmission inclined shaft 20, the compression roller shaft 23 and all components on the compression roller shaft 23 are driven through the transmission box 21 to synchronously rotate, the shaping and compaction of the ridge can be realized through the synchronous rotation of the compression roller shaft 23, the rotary compression roller 24 and the compactor 25, the convenience of the ridge forming process is effectively improved, meanwhile, the rapid adjustment of the position of the compactor 25 on the rotary compression roller 24 can be realized, the use convenience of the ridger is further improved.
The working principle and the using process of the utility model are as follows: in the practical application process, before the ridger is used, the connecting suspension 1 needs to be connected to an agricultural locomotive, in the using process of the ridger, the agricultural locomotive drives the connecting suspension 1 and the mounting cross beam 2 to advance so as to drive the ridger to move integrally forwards, the connecting plow standard 5 is fixed to the bottom of the mounting cross beam 2 through the plow standard clamping wires 3 and the fixed connecting plate 4, the plow standard vertical plate 7 drives the plow standard arc plate 8, the driving plow blade 9, the driving plow tip 10 and the driving plow sheet 11 to move, and in the synchronous moving process of the driving plow blade 9, the driving plow tip 10 and the driving plow sheet 11, the soil in a field is turned upwards and gathered towards the middle;
the position of the connecting plow column 5 at the bottom of the mounting cross beam 2 can be adjusted through the plow column clamping wires 3 and the fixed connecting plates 4, so that the interval and the position of the driving coulters 9 on the two sides are adjusted, the soil turning range is adjusted, the soil consumption of a ridge is ensured, meanwhile, the soil gathering effect is effectively improved by increasing the area of the driving plow pieces 11, and the using process of the ridge building machine is optimized;
when the ridge building machine moves forwards, the main gearbox 12 is driven through an output shaft of the agricultural locomotive, the main gearbox 12 drives the driving sprocket 13 to rotate, the driven sprocket 17 is driven to rotate through the transmission chain 18 in the rotation process of the driving sprocket 13, the rotary tillage cutter shaft 15 is driven to rotate through the rotation of the driven sprocket 17, the rotary tillage cutter shaft 15 is driven to synchronously rotate, and the soil after the driving plough blades 11 are piled is stirred in the rotation process of the rotary tillage cutter shaft 16, so that large soil blocks in the piled soil are smashed, the soil loosening effect is realized, the normal operation of the subsequent soil compaction process is ensured, and the soil piling effect in the ridge building process is effectively improved;
in the continuous advancing process of the ridger, soil after gathering and piling needs to be compacted, the compaction inclined frame 22 is driven to swing up and down through the extension and retraction of the hydraulic telescopic rod 26, the height adjustment of the rotary compression roller 24 is realized, the adjustment of the height and the compactness of the ridge is further realized quickly through the adjustment of the rotary compression roller 24, the adjustment mode of the ridger is optimized, the adjustment process of the ridger is enabled to be faster and more convenient, the auxiliary gearbox 19 is driven through the main gearbox 12, the transmission inclined shaft 20 is driven to rotate through the auxiliary gearbox 19, the transmission inclined shaft 20 is driven to drive the transmission box 21, and the compression roller shaft 23 and all components on the compression roller shaft are driven to synchronously rotate through the transmission box 21;
through the synchronous rotation of the compression roller shaft 23, the rotary compression roller 24 and the compactor 25, the shaping and compaction of the ridge can be realized, the convenience of the ridge forming process is effectively improved, meanwhile, the rapid adjustment of the width of the ridge can be realized through adjusting the position of the compactor 25 on the rotary compression roller 24, and the convenience of the use of the ridge forming machine is further improved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides a paddy field ridger that collocation formula was used, hangs (1) including connecting, its characterized in that: the improved plough support is characterized in that an installation cross beam (2) is welded in the middle of the connection suspension (1), plough column clamping wires (3) are symmetrically clamped at two ends of the installation cross beam (2), a fixed connecting plate (4) is installed at the bottom of the plough column clamping wires (3) through nuts, a connection plough column (5) is welded in the middle of the bottom of the fixed connecting plate (4), a plough column reinforcing plate (6) is welded at one side of the top of the connection plough column (5), a plough support vertical plate (7) is welded at one side of the bottom of the connection plough column (5), a plough support arc plate (8) is arranged at one side of the plough support arc plate (8), a drive plough point (10) is installed at the front end of the drive plough cutter (9) through screws, and a drive plough piece (11) is fixedly connected to the tail of the drive plough cutter (9).
2. The paddy field ridger used in a matching manner according to claim 1, wherein a connecting column is provided on one side of the connecting suspension (1), the outer side of the plow column clamping wire (3) is tightly attached to the outer side of the mounting cross beam (2), the inner side of the driving plow piece (11) is integrally in an arc shape, the driving plow pieces (11) are integrally distributed in an inclined manner, and the tail between the vertical plow support plate (7) and the arc plow support plate (8) is reinforced by a plow support plate.
3. The paddy field ridger used in a matching manner according to claim 1, wherein a main gear box (12) is fixedly mounted in the middle of the top end of the mounting cross beam (2), a driving sprocket (13) is fixedly connected to the end of an output shaft on one side of the main gear box (12), a connecting vertical plate (14) is fixedly connected to the bottom of the tail end of a suspension beam on one side of the mounting cross beam (2), a rotary tillage cutter shaft (15) is rotatably connected to the middle of one side of the connecting vertical plate (14) through a bearing, rotary tillage positive cutters (16) are uniformly and fixedly mounted on the outer side of the rotary tillage cutter shaft (15) in the circumferential direction, a driven sprocket (17) is sleeved at a position on one side of the corresponding connecting vertical plate (14) at the end of the rotary tillage cutter shaft (15), and a transmission chain (18) is wrapped between the driving sprocket (13) and the outer side of the driven sprocket (17).
4. The paddy field ridger for collocated use according to claim 3, characterized in that the input shaft of said main gearbox (12) is interconnected with the output shaft of an agricultural vehicle, said connecting risers (14) are composed of two, and said two connecting risers (14) are symmetrically distributed along the center plane of the mounting beam (2), said rotary tillage blades (16) being all located in the area between the two driving plough blades (11).
5. The paddy field ridger used in a matched manner according to claim 4, wherein an auxiliary gearbox (19) is connected to the end of the output shaft on the other side of said main gearbox (12), one end of the output shaft of said auxiliary gearbox (19) is connected to a transmission oblique shaft (20) through a universal coupling, and the end of said transmission oblique shaft (20) is connected to a transmission box (21) through a universal coupling;
installation crossbeam (2) one side tip rotates through the installation pivot and is connected with compaction sloping frame (22), compaction sloping frame (22) tip rotates through rolling bearing and is connected with compression roller axle (23), rotatory compression roller (24) of compression roller axle (23) outside middle part fixedly connected with, compactor (25) are all installed through the bolt at rotatory compression roller (24) outside both ends, connect and hang (1) top middle part and rotate through the connecting seat and be connected with hydraulic telescoping rod (26), and hydraulic telescoping rod (26) bottom is passed through the connecting seat and is connected with compaction sloping frame (22) top middle part rotation.
6. The paddy field ridger used in a matching manner according to claim 5, wherein the bottom of the auxiliary gearbox (19) is fixedly connected with the top of the mounting beam (2), reinforcing triangular plates are uniformly welded on the inner side of the compactor (25) along the circumferential direction, a plurality of groups of connecting holes are axially arranged on the inner side of the compactor (25), the connecting holes on the compactor (25) correspond to the mounting holes on the outer side of the rotary press roller (24), and the end of the press roller shaft (23) is connected with the output shaft of the transmission case (21).
CN202220306700.3U 2022-02-16 2022-02-16 Paddy field ridger that collocation formula was used Active CN216982454U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220306700.3U CN216982454U (en) 2022-02-16 2022-02-16 Paddy field ridger that collocation formula was used

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220306700.3U CN216982454U (en) 2022-02-16 2022-02-16 Paddy field ridger that collocation formula was used

Publications (1)

Publication Number Publication Date
CN216982454U true CN216982454U (en) 2022-07-19

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