Folding rotary cultivator

Abstract

The utility model relates to the technical field of folding tillage and soil preparation machines, in particular to a folding rotary cultivator which comprises a gantry mechanism, folding suspensions and a rotary tillage mechanism, the folding suspensions are arranged on the two sides of the gantry mechanism, and the two folding suspensions are driven by corresponding folding driving pieces to rotate between a folding position and an unfolding position. Rotary tillage mechanisms are installed on the two folding suspensions, a rotary tillage gap is formed between the two rotary tillage mechanisms and serves as a working blind area of the folding rotary cultivator, a plough share and a soil separating mechanism are arranged on the portal frame and located in the working blind area correspondingly, and the working blind area is eliminated by the plough share and the soil separating mechanism in the rotary tillage process. Therefore, the rotary tillage quality and the rotary tillage efficiency of the folding rotary cultivator are improved; the edge ploughshares are fixedly arranged at the two ends of the folding rack respectively, it can be guaranteed that soil blocks are turned into effective cutter shafts, friction between side edge gear boxes and the ground can be reduced, and a box body is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of foldable tillage machines, in particular to a foldable rotary tiller. Background Art

[0002] The two parts of the rotary tiller can rotate relative to the gantry. In order to reserve enough space for the rotary tiller to rotate, the middle and both ends of the existing folding rotary tiller will form a working blind area when the two rotary tillers are working, which affects the quality of the rotary tillage and will damage the gear box when encountering large clods of soil and debris. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a folding rotary tiller, in which side plows are fixedly arranged in the middle and at both ends of the folding frame, respectively, which can not only ensure that the soil blocks are turned into the effective knife shaft, but also reduce the friction between the side gear box and the ground, thus protecting the box body, eliminating the working blind area, and improving the rotary tillage effect on the ground.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: a folding rotary tiller, comprising a gantry mechanism, a folding suspension and a rotary tiller mechanism, the gantry mechanism comprising a gantry frame, two opposite ends of the gantry frame are provided with folding suspensions, the folding suspensions are connected to the gantry frame and rotate relative to the connection, two opposite ends of the gantry frame are provided with folding driving members, two folding driving members are respectively connected to two folding suspensions and drive the corresponding folding suspensions to rotate between the folding position and the unfolding position, each folding suspension is provided with a rotary tiller mechanism, when the two folding suspensions are both in the unfolding position, there is a rotary tiller gap between the two rotary tillers, and a plowshare and a soil dividing mechanism are provided on the gantry in front of the rotary tiller gap. The rotary tiller gap between the two rotary tillers is the working blind area of ​​the folding rotary tiller, and the plowshare and the soil dividing mechanism are provided at the working blind area. During the use of the folding rotary tiller, the plowshare loosens the soil and eliminates the working blind area, and the soil dividing mechanism divides the soil turned out by the plowshare to the two rotary tillers.

[0005] As an optional solution, the soil dividing mechanism includes soil dividing plates, and two soil dividing plates are symmetrically arranged on the rear side of the plowshare and respectively push the soil to the front of the two rotary tillage mechanisms.

[0006] As an optional solution, a plowshare frame is arranged at the bottom of the gantry, the plowshare frame is located in front of the rotary tillage gap, the plowshare is arranged at the bottom of the plowshare frame, and the soil dividing plate is arranged on the plowshare frame.

[0007] As an optional solution, a hanger is provided on the rotary tiller housing of the rotary tillage mechanism, the hanger is detachably connected to the folding suspension and a connecting position is provided at the rear end of the hanger, and a drive installation position is also reserved on the hanger.

[0008] As an optional solution, it also includes a soil crushing mechanism and a telescopic adjustment member, the soil crushing mechanism is connected to the connection position at the rear end of the hanger and rotates relative to the hanger, the telescopic adjustment member is arranged at the driving installation position and rotates relative to the hanger, and the telescopic part of the telescopic adjustment member is rotatably connected to the soil crushing mechanism. The soil crushing mechanism is arranged at the rear end of the rotary tillage mechanism and can rotate relative to the connection with the rotary tillage mechanism, and the soil crushing mechanism is driven to rotate by the telescopic adjustment member, thereby adjusting the strength of soil crushing and soil pressing.

[0009] As an optional solution, the rotary tillage mechanism includes a rotary tiller housing and a rotary tiller blade shaft. Both ends of the rotary tiller housing are provided with mounting bearings. The rotary tiller blade shaft is installed in the rotary tiller housing through two mounting bearings. A rotary tiller blade is arranged on the rotary tiller blade shaft. A transmission box is arranged at one end of the rotary tiller housing. The power output part of the transmission box is connected to the rotary tiller blade shaft. The power input part of the transmission box is connected to the transmission shaft through a universal coupling. The transmission shaft is also connected to the power output part of the gearbox arranged on the gantry through a universal coupling.

[0010] As an optional solution, a side shovel is provided on the rotary tiller housing, and the side shovel is located in front of the mounting bearing located at the outer end of the rotary tiller housing; when the folding suspension is in the unfolded position, the mounting bearing located at the inner end of the rotary tiller housing is located behind the soil dividing plate. The soil dividing plate and the side shovel are respectively provided in front of the two mounting bearings of the rotary tiller mechanism, which play a role in protecting the mounting bearings, and the side shovel also plays a role in turning the soil.

[0011] As an optional solution, a mounting sleeve is vertically arranged on the rotary tiller housing, a mounting shaft rod is passed through the mounting sleeve, the mounting shaft rod moves along the mounting sleeve and is connected to the mounting sleeve by connecting bolts, and a side shovel is arranged at the bottom end of the mounting shaft rod.

[0012] As an optional solution, a telescopic shield is provided on the outer cover of the transmission shaft, one end of the telescopic shield is connected to the gearbox and rotates relative to the gearbox, and the other end of the telescopic shield is connected to the transmission box and rotates relative to the transmission box.

[0013] As an optional solution, a transmission platform is provided at the rear end of the gantry, a gearbox is provided on the transmission platform, the gantry and the transmission platform are connected by reinforcing ribs, and a transmission yielding opening is provided on the gantry corresponding to the gearbox.

[0014] Compared with the prior art, the utility model has the following beneficial effects: 1. A plowshare and a soil dividing mechanism are arranged at the working blind spot of the folding rotary tiller, which can not only eliminate the working blind spot of the folding rotary tiller and improve the rotary tillage effect, but also protect the mounting bearing of the inner end of the rotary tillage mechanism; 2. A side shovel is arranged on the rotary tiller shell corresponding to the mounting bearing of the outer end of the rotary tiller shell, and the depth of the side shovel is adjustable. In addition to turning over and crushing the soil, the side shovel can also protect the mounting bearing of the outer end of the rotary tillage mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the structure of the folding rotary tiller from the front side perspective;

[0017] Figure 2 It is a structural schematic diagram of a folding rotary tiller from a rear side perspective;

[0018] Figure 3 It is a schematic diagram of the connection between the soil crushing mechanism and the rotary tillage mechanism;

[0019] Figure 4 It is a structural schematic diagram of the gantry mechanism and the rotary tillage mechanism;

[0020] Figure 5 It is a schematic diagram of the connection between the gantry mechanism and the rotary tillage mechanism;

[0021] In the figure: 1. gantry mechanism, 11. gantry frame, 12. folding drive member, 13. plowshare, 14. soil dividing mechanism, 15. gearbox, 2. folding suspension, 3. rotary tillage mechanism, 31. hanger, 32. rotary tillage machine housing, 33. rotary tillage blade shaft, 34. transmission box, 35. side shovel, 36. telescopic shield, 4. soil suppression and crushing mechanism, 5. telescopic adjustment member. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment: A folding rotary tiller, such as Figure 1-Figure 5As shown, it includes a gantry mechanism 1, a folding suspension 2 and a rotary tillage mechanism 3. The gantry mechanism 1 includes a gantry 11. The front end surface of the gantry 11 is provided with a three-point suspension structure. The three-point suspension structure can adopt the existing technical structure. The gantry 11 can be connected and matched with the tractor through the three-point suspension structure. Folding suspensions 2 are provided at the two opposite ends of the gantry 11. The two folding suspensions 2 are respectively on the left and right sides of the gantry 11 and the two folding suspensions 2 are symmetrically arranged. One end of the folding suspension 2 is connected to the gantry 11 and rotates relative to the connection with the gantry 11. Specifically, suspension mounting parts are provided at the two opposite ends of the gantry 11. The suspension mounting parts include a pin and a sleeve. The pin is fixedly connected to the gantry 11. The pin is provided with a sleeve. The folding suspension 2 is connected to the sleeve and the folding suspension 2 can rotate relative to the pin.

[0024] Folding drive members 12 are provided at two opposite ends of the gantry 11, and the two folding drive members 12 are also respectively on the left and right sides of the gantry 11. The folding drive member 12 is a cylinder or other forms of telescopic tooling. One end of the folding drive member 12 is connected to the gantry 11 and the folding drive member 12 can rotate relative to the gantry 11. The telescopic part of the folding drive member 12 is rotatably connected to the folding suspension 2 on the corresponding side. Driven by the folding drive member 12, the folding suspension 2 rotates relative to the gantry 11 between the unfolded position and the folded position.

[0025] The rear sides of the two folding suspensions 2 are both provided with a rotary tillage mechanism 3, which is connected to the folding suspension 2. When the folding suspension 2 is in the folded position, the rotary tillage mechanism 3 is also in the folded state, and when the folding suspension 2 is in the unfolded position, the rotary tillage mechanism 3 is also in the unfolded state. When both rotary tillage mechanisms 3 are in the unfolded state, there is a rotary tillage gap between the inner ends of the two rotary tillage mechanisms 3. Both rotary tillage mechanisms 3 cannot be processed to the rotary tillage gap, and the rotary tillage gap is the working blind spot of the folding rotary tiller.

[0026] A plowshare 13 and a soil dividing mechanism 14 are arranged on the gantry 11 in front of the rotary tillage gap. The plowshare 13 plays the role of loosening and breaking the soil in front of the rotary tillage gap, eliminating the working blind spot of the folding rotary tiller. The soil dividing mechanism 14 is used to divert the soil processed by the plowshare 13 to both sides so that the two rotary tillage mechanisms 3 can perform rotary tillage operations on this part of the soil. When the folding rotary tiller is rotary tilling the land, the tractor drives the folding rotary tiller forward, and the plowshare 13 destroys the soil structure in front of the rotary tillage gap, playing the role of loosening and breaking the soil. The soil dividing mechanism 14 pushes the soil turned out by the plowshare 13 to the front of the two rotary tillage mechanisms 3. As the folding rotary tiller moves forward, the rotary tillage mechanisms 3 perform rotary tillage operations on the turned-out soil and the ground.

[0027] The utility model arranges the plowshare 13 and the soil dividing mechanism 14 at the working blind area, which can not only eliminate the working blind area of ​​the folding rotary tiller, but also the plowshare 13 and the soil dividing mechanism 14 can protect the rotary tillage mechanism 3 in front of the inner end of the rotary tillage mechanism 3.

[0028] See also Figure 1 and Figure 4 The soil dividing mechanism 14 includes two soil dividing plates, which are both arranged at the rear side of the plowshare 13. The two soil dividing plates are symmetrically distributed, and the soil dividing end surfaces of the two soil dividing plates are facing obliquely forward. When the tractor drives the folding rotary tiller to move and till, the two soil dividing plates will push the soil turned over by the plowshare 13 to the front of the two rotary tilling mechanisms 3 respectively.

[0029] In some embodiments, a plowshare 13 frame is provided at the bottom of the gantry 11, the plowshare 13 frame is located in front of the rotary tillage gap, the plowshare 13 is provided at the bottom of the plowshare 13 frame, and the soil dividing plate is provided on the plowshare 13 frame. Further, the soil dividing plate and the plowshare 13 frame are both provided with a plurality of connection holes distributed vertically, the soil dividing plate is installed on the plowshare 13 frame by bolts, and the soil dividing plate can adjust the installation height relative to the plowshare 13 frame.

[0030] See also Figure 2 , Figure 3 and Figure 5 The rotary tillage mechanism 3 includes a rotary tillage machine housing 32 and a rotary tillage blade shaft 33. The rotary tillage machine housing 32 includes a front suspension beam, a rear suspension beam and a cover plate. The front suspension beam and the rear suspension beam are arranged in parallel and connected by a connecting beam. A plurality of cover plates are arranged between the front suspension beam and the rear suspension beam. A hanger 31 is arranged on the rotary tillage machine housing 32. There are one or more hangers 31. Each hanger 31 is connected to the front suspension beam and the rear suspension beam. The front end of the hanger 31 is detachably connected to the folding suspension 2. The rear end of the hanger 31 is provided with a connection position suitable for installing a soil crushing mechanism 4. A drive installation position suitable for installing a telescopic adjustment member 5 is also reserved on the hanger 31.

[0031] See also Figure 3 and Figure 5 As a specific example of the hanger 31, the hanger 31 includes two hanger plates, which are arranged opposite to each other and fixedly connected to the front hanger beam and the rear hanger beam. The hanger plates are provided with a plurality of mounting holes. A mounting connecting plate is provided on the folding suspension 2, and a mounting hole is also provided on the mounting connecting plate. The mounting connecting plate is inserted between the two hanger plates and connected to the two hanger plates by a plurality of bolts. The connection position is a through hole opened at the rear end of each hanger plate, and a rotating shaft is inserted in the through hole. The driving mounting position is one or more mounting holes on the hanger plate suitable for mounting the telescopic adjustment member 5.

[0032] A soil suppression and crushing mechanism 4 is arranged on the rear side of the rotary tillage mechanism 3. The soil suppression and crushing mechanism 4 is connected to the connecting position at the rear end of each hanger 31 and can rotate relative to the rotary tillage mechanism 3. The soil suppression and crushing mechanism 4 corresponds to at least one telescopic adjustment member 5. The telescopic adjustment member 5 is an oil cylinder or other telescopic tooling. The fixed part of the telescopic adjustment member 5 is provided with a bracket, and the bracket can rotate relative to the telescopic adjustment member 5. The bracket is installed at the driving installation position on the hanger 31, so that the telescopic adjustment member 5 is rotatably connected to the hanger 31, and the telescopic part of the telescopic adjustment member 5 is rotatably connected to the soil suppression and crushing mechanism 4. The telescopic adjustment member 5 can drive the soil suppression and crushing mechanism 4 to rotate relative to the rotary tillage machine housing 32, thereby adjusting the soil crushing intensity.

[0033] Both ends of the rotary tiller housing 32 are provided with side plates, and mounting bearings are provided on the side plates. The rotary tiller blade shaft 33 is installed in the rotary tiller housing 32 through two mounting bearings, and a rotary tiller blade is provided on the rotary tiller blade shaft 33. A transmission box 34 is provided at one end of the rotary tiller housing 32, and the power output part of the transmission box 34 is connected to the rotary tiller blade shaft 33. The power input part of the transmission box 34 is connected to one end of the transmission shaft through a universal coupling, and the other end of the transmission shaft is also provided with a universal coupling, and the transmission shaft is connected to the power output part of the gearbox 15 provided on the gantry 11 through the universal coupling. The gearbox 15 transmits the received power to the transmission box 34 through the transmission shaft, and the transmission box 34 then transmits the power to the rotary tiller blade shaft 33.

[0034] The transmission box 34 is arranged at the outer end side of the rotary tiller housing 32, and a side shovel 35 is arranged at the outer end side of the rotary tiller housing 32. The side shovel 35 is located in front of the transmission box 34 and in front of the mounting bearing located at the outer end of the rotary tiller housing 32. In addition to turning the soil at the outer end side of the rotary tiller housing 32, loosening and crushing the soil, the side shovel 35 can also protect the mounting bearing located at the outer end of the rotary tiller housing 32 and the side plate of the rotary tiller housing 32. When the folding suspension 2 is in the unfolded position, the mounting bearing located at the inner end of the rotary tiller housing 32 is located behind the soil dividing plate, and the soil dividing plate and the side shovel 35 cooperate to protect the two side plates and bearings of the rotary tiller mechanism 3.

[0035] See also Figure 1 and Figure 3-Figure 5 In a further embodiment, a mounting sleeve is provided on the rotary tiller housing 32, and the mounting sleeve is vertically arranged. A mounting shaft rod is passed through the mounting sleeve, and the mounting shaft rod can be vertically lifted and lowered along the mounting sleeve. Through holes are provided on the mounting shaft rod and the mounting sleeve, and the mounting shaft rod is connected to the mounting sleeve by connecting bolts passing through the mounting shaft rod and the mounting sleeve. The side shovel 35 is installed at the bottom end of the mounting shaft rod. Through the mounting sleeve and the mounting shaft rod, the height of the side shovel 35 can be adjusted, thereby adjusting the soil crushing depth of the side shovel 35.

[0036] The working end surface of the side shovel 35 is inclined forward, and the working end surface of the side shovel 35 and the soil dividing end surface of the corresponding side soil dividing plate form a flared structure, and the two cooperate to gather the soil to the rotary tillage mechanism 3.

[0037] See also Figure 1-Figure 5 In some embodiments, in order to improve the safety of the equipment and adapt to the folding changes of the rotary tiller body, a telescopic shield 36 is provided on the outer cover of the transmission shaft, and the telescopic shield 36 includes two sections of shield bodies, wherein the end of one section of the shield body is inserted into the interior of the other section of the shield body, and the two sections of the shield body can move relative to each other, and the two sections of the shield body form a telescopic shield body structure, one end of the telescopic shield 36 is connected to the gearbox 15, and the telescopic shield 36 can rotate relative to the connection with the gearbox 15, and the other end of the telescopic shield 36 is connected to the transmission box 34, and the telescopic shield 36 can rotate relative to the connection with the transmission box 34.

[0038] A transmission platform is arranged at the rear end of the gantry 11, and a gearbox 15 is arranged on the transmission platform. A transmission yielding opening is arranged on the gantry 11 corresponding to the gearbox 15. In order to improve the strength of the transmission platform, the gantry 11 is also connected with reinforcing ribs, which are above the transmission platform and connected to the transmission platform.

[0039] In the description of this specification, the description of reference terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A folding rotary tiller, characterized in that: The invention comprises a gantry mechanism (1), a folding suspension (2) and a rotary tillage mechanism (3). The gantry mechanism (1) comprises a gantry (11). The folding suspension (2) is arranged at two opposite ends of the gantry (11). The folding suspension (2) is connected to the gantry (11) and rotates relative to the connection. The gantry (11) is provided with a folding driving member (12) at two opposite ends. The two folding driving members (12) are respectively connected to the two folding suspensions (2) and drive the corresponding folding suspensions (2) to rotate between a folding position and an unfolded position. Each folding suspension (2) is provided with a rotary tillage mechanism (3). When the two folding suspensions (2) are both in the unfolded position, a rotary tillage gap is provided between the two rotary tillage mechanisms (3). A plowshare (13) and a soil dividing mechanism (14) are arranged on the gantry (11) in front of the rotary tillage gap.

2. A folding rotary tiller according to claim 1, characterized in that: The soil dividing mechanism (14) comprises soil dividing plates, and two soil dividing plates are symmetrically arranged at the rear side of the ploughshare (13) and respectively push the soil to the front of the two rotary tillage mechanisms (3).

3. A folding rotary tiller according to claim 2, characterized in that: A plowshare (13) frame is arranged at the bottom of the gantry (11), the plowshare (13) frame is located in front of the rotary tillage gap, the plowshare (13) is arranged at the bottom of the plowshare (13) frame, and a soil dividing plate is arranged on the plowshare (13) frame.

4. A folding rotary tiller according to claim 2, characterized in that: A hanger (31) is provided on a rotary tiller housing (32) of the rotary tillage mechanism (3); the hanger (31) is detachably connected to the folding suspension (2); a connection position is provided at the rear end of the hanger (31); and a drive installation position is also reserved on the hanger (31).

5. A folding rotary tiller according to claim 4, characterized in that: It also includes a soil suppression and crushing mechanism (4) and a telescopic adjustment member (5); the soil suppression and crushing mechanism (4) is connected to a connection position at the rear end of the hanger (31) and rotates relative to the hanger (31); the telescopic adjustment member (5) is arranged at a drive installation position and rotates relative to the hanger (31); and the telescopic portion of the telescopic adjustment member (5) is rotatably connected to the soil suppression and crushing mechanism (4).

6. A folding rotary tiller according to claim 5, characterized in that: The rotary tillage mechanism (3) comprises a rotary tillage housing (32) and a rotary tillage blade shaft (33). Both ends of the rotary tillage housing (32) are provided with mounting bearings. The rotary tillage blade shaft (33) is mounted in the rotary tillage housing (32) via the two mounting bearings. A rotary tillage blade is mounted on the rotary tillage blade shaft (33). A transmission box (34) is disposed at one end of the rotary tillage housing (32). The power output portion of the transmission box (34) is connected to the rotary tillage blade shaft (33). The power input portion of the transmission box (34) is connected to a transmission shaft via a universal coupling. The transmission shaft is also connected to a power output portion of a gearbox (15) disposed on a gantry (11) via a universal coupling.

7. A folding rotary tiller according to claim 6, characterized in that: A side shovel (35) is provided on the rotary tiller housing (32), and the side shovel (35) is located in front of a mounting bearing located at the outer end of the rotary tiller housing (32); when the folding suspension (2) is in the unfolded position, the mounting bearing located at the inner end of the rotary tiller housing (32) is located behind the soil dividing plate.

8. The folding rotary tiller according to claim 6, characterized in that: A mounting sleeve is vertically arranged on the rotary tiller housing (32), a mounting shaft rod is inserted into the mounting sleeve, the mounting shaft rod moves along the mounting sleeve and is connected to the mounting sleeve via a connecting bolt, and a side shovel (35) is arranged at the bottom end of the mounting shaft rod.

9. The folding rotary tiller according to claim 5, characterized in that: A telescopic shield (36) is provided on the outer cover of the transmission shaft, one end of the telescopic shield (36) is connected to the gearbox (15) and rotates relative to the gearbox (15), and the other end of the telescopic shield (36) is connected to the transmission box (34) and rotates relative to the transmission box (34).

10. The folding rotary tiller according to claim 9, characterized in that: A transmission platform is arranged at the rear end of the gantry (11), and a gearbox (15) is arranged on the transmission platform. The gantry (11) and the transmission platform are connected via reinforcing ribs, and a transmission clearance opening is arranged on the gantry (11) at a position corresponding to the gearbox (15).

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