Transmission case of light paddy field folding rotary cultivator

Abstract

The utility model relates to the technical field of folding tillage and soil preparation machines, in particular to a transmission case of a light paddy field folding rotary cultivator, which comprises a transmission case bottom plate, a top plate, a front support frame, a rear support frame and a side support frame, and the front support frame, the rear support frame and the side support frame are fixedly arranged on the transmission case bottom plate. A front supporting frame, a rear supporting frame, a top plate and two side supporting frames on the gearbox bottom plate form a transmission area, and a transmission mechanism is arranged in the transmission area. The upper end face of the top plate is flush with the upper end face of the front supporting frame and the upper end face of the rear supporting frame, and the upper end faces of the side supporting frames are slightly higher than the top plate, provided with supporting side frame connecting holes and connected with the supporting side frames at the upper ends through fasteners. The upper suspension connecting piece is arranged on the supporting side frame, the square pipe is arranged in front of the front supporting frame, and the strength of the upper suspension connecting piece is improved through combination of the upper suspension connecting piece and the square pipe.

Description

Technical Field

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

[0002] The rotary tiller frame of a lightweight folding rotary tiller for paddy fields is small and light in weight. The use of a traditional gantry mechanism will result in a larger overall device and a relatively high cost. The gearbox and the gearbox mounting structure do not have sufficient strength and are not suitable for installation and connection with the rotary tiller frame. Therefore, a transmission box suitable for connection with the rotary tiller frame is needed for a lightweight folding rotary tiller for paddy fields. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a transmission box for a light paddy field folding rotary tiller, which has high structural strength and can be used as a gantry on the light paddy field folding rotary tiller, which is beneficial to simplifying the structure of the light paddy field folding rotary tiller and reducing the cost of the light paddy field folding rotary tiller.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a transmission box of a light paddy field folding rotary tiller, including a gearbox bottom plate, a front support frame, a rear support frame and a side support frame, a front support frame and a rear support frame are arranged on the gearbox bottom plate, two side support frames are arranged on the gearbox bottom plate between the front support frame and the rear support frame, the area above the gearbox bottom plate defined by the front support frame, the rear support frame and the two side support frames is a transmission area, a top plate is arranged on the top of the transmission area, a rotary tiller frame connection area is arranged between the front support frame and the rear support frame on both sides of the transmission area, and each rotary tiller frame has a plurality of side support frames. The frame connection area is provided with a rotary tiller frame connection mechanism and a folding drive member connection mechanism; a transmission mechanism is provided in the transmission area, and a power receiving part of the transmission mechanism extends from a transmission hole on the front support frame to the outside of the transmission area, and two power output parts of the transmission mechanism extend from the transmission holes on the two side support frames to the corresponding rotary tiller frame connection area respectively; a reinforcement mechanism is provided above the transmission area, the reinforcement mechanism is connected to the two side support frames and an upper suspension connection piece is provided on the reinforcement mechanism, and a reinforcement beam is provided on the front side of the front support frame, and a lower suspension connection piece is provided on the reinforcement beam.

[0005] The transmission box is provided with a reinforcement mechanism and a reinforcement beam, which can not only strengthen the structure of the transmission box so that it can bear the weight of the rotary tiller frame, but also facilitate the installation of a three-point suspension mechanism, so that the transmission box can be used as a gantry while playing a transmission role.

[0006] As an optional solution, the reinforcement mechanism includes a supporting side frame, the top ends of the two side supporting frames are connected to the supporting side frames, a connecting beam is arranged between the two supporting side frames, and the upper hanging connecting piece is arranged on the connecting beam. The supporting side frames are arranged on the tops of the two side supporting frames, the two supporting side frames are inclined to each other and connected by the connecting beam, so as to strengthen the structure of the transmission box, and the upper hanging connecting piece is arranged at the connecting beam with high structural strength and far away from the transmission box.

[0007] As an optional solution, the upper suspension connecting member includes an upper suspension connecting plate, which is provided with a clamping hole, the connecting beam passes through the clamping hole and is connected to the upper suspension connecting plate, and an upper suspension connecting hole is provided on the upper suspension connecting plate at the front side of the connecting beam.

[0008] As an optional solution, a reinforcing rib connection hole is provided on the upper suspension connection plate at the rear side of the connection beam. The reinforcing rib connection hole can be connected to the reinforcing rib, and the reinforcing mechanism is connected to the gearbox bottom plate or the rear support frame by the reinforcing rib, thereby improving the overall strength of the transmission box.

[0009] As an optional solution, there are at least two upper suspension connecting plates, and the plate surfaces of the upper suspension connecting plates are facing each other.

[0010] As an optional solution, the rotary tiller frame connection mechanism includes a frame pin, the frame pin is connected to both the front support frame and the rear support frame, a frame sleeve is arranged on the frame pin, the frame sleeve rotates relative to the frame pin and a frame connecting piece is arranged on the frame sleeve;

[0011] The folding drive member connection mechanism comprises a driving pin shaft, the driving pin shaft is connected to both the front support frame and the rear support frame, and a folding drive member connection position is arranged on the driving pin shaft.

[0012] As an optional solution, a reinforcement support plate is provided on the front end surface of the front support frame corresponding to the connection area of ​​each rotary tiller frame, each frame pin and each drive pin are connected to the reinforcement support plate, and a reinforcement connecting plate is provided between the reinforcement support plate and the reinforcement beam. The reinforcement support plate provided on the front support frame can improve the structural strength of the front support frame so that the transmission box can bear the weight of the rotary tiller frame.

[0013] As an optional solution, a reinforcement crossbeam is arranged at the front side of the front support frame and connected to the gearbox bottom plate. A reinforcement vertical plate is also arranged at the bottom of the gearbox bottom plate, and the reinforcement vertical plate is connected to the reinforcement crossbeam.

[0014] As an optional solution, a hook connection position is also provided on the driving pin shaft, and a hook drive connecting plate is provided on the reinforcement bracket. The hook drive connecting plate is connected to the connecting beam, the supporting side frame and each upper suspension connecting plate, and a hook drive connecting position is provided at the corresponding hook connection position on the hook drive connecting plate.

[0015] As an optional solution, the lower suspension connecting member includes a lower suspension connecting plate, which is arranged on the reinforcing cross beam and is provided with a lower suspension connecting hole.

[0016] Compared with the prior art, the utility model has the following beneficial effects: 1. The transmission box is provided with a rotary tiller frame connection area, which is suitable for connecting the rotary tiller frame and folding drive parts of the light paddy field folding rotary tiller. The transmission box is provided with a reinforcement mechanism and a reinforcement beam. The reinforcement mechanism and the reinforcement beam strengthen the structure of the transmission box and enable the transmission box to bear the weight of the rotary tiller frame; 2. The transmission box of the utility model can also play the role of a gantry, integrating the transmission box and the gantry together, which is suitable for use in light paddy field folding rotary tillers, and is beneficial to streamlining the structure of the light paddy field folding rotary tiller and reducing the cost of the light paddy field folding rotary tiller. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 It is a schematic diagram of the structure of the transmission box;

[0019] Figure 2 This is a schematic diagram of the structure of the transmission box omitting the rear support frame;

[0020] Figure 3 It is a structural schematic diagram of the connection mechanism between the transmission box and the rotary tiller frame and the connection mechanism between the folding drive member;

[0021] Figure 4 The structure diagram of a light paddy field folding rotary tiller using the transmission box of the utility model;

[0022] In the figure: 1. gearbox bottom plate, 2. front support frame, 3. rear support frame, 4. side support frame, 5. top plate, 6. rotary tiller frame connecting mechanism, 7. folding drive member connecting mechanism, 8. transmission mechanism, 9. reinforcement mechanism, 10. upper hanging connecting member, 11. reinforcement beam, 12. lower hanging connecting member, 13. reinforcement support plate, 14. reinforcement connecting plate, 15. reinforcement vertical plate, 16. rotary tiller frame, 17. folding drive member. DETAILED DESCRIPTION

[0023] 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. Example

[0024] like Figure 1-Figure 3 As shown, a transmission box of a light paddy field folding rotary tiller comprises a transmission box bottom plate 1, a front support frame 2, a rear support frame 3 and a side support frame 4. The transmission box bottom plate 1 is provided with a front support frame 2 and a rear support frame 3, the front support frame 2 and the rear support frame 3 are both vertically arranged on the transmission box bottom plate 1 and the two plate surfaces are directly opposite, two side support frames 4 are arranged between the front support frame 2 and the rear support frame 3 on the transmission box bottom plate 1, the two side support frames 4 are vertically arranged on the transmission box bottom plate 1 and the two plate surfaces are directly opposite, the two side edges of the side support frame 4 are respectively connected to the front support frame 2 and the rear support frame 3, the front support frame 2, the rear support frame 3 and the two side support frames 4 form a closed area with an open top on the transmission box bottom plate 1, the area defined by the front support frame 2, the rear support frame 3 and the two side support frames 4 is a transmission area, a top plate 5 is arranged above the transmission area, the top plate 5 closes the transmission area, the transmission box is composed of the transmission box, the front support frame 2, the rear support frame 3, the top plate 5 and the two side support frames 4.

[0025] A transmission mechanism 8 is arranged in the transmission area, and the transmission mechanism 8 includes a power input shaft and a power output shaft. Transmission holes are opened on the front support frame 2 and the two side support frames 4, and the power output shaft is arranged through the transmission holes of the two side support frames 4. The power output shaft is connected to the two side support frames 4 through a bearing structure, and both ends of the power output shaft extend out of the transmission area and are provided with a power output part; the power input shaft passes through the transmission hole of the front support frame 2 and is connected to the front support frame 2 through a bearing structure, one end of the power input shaft extends out of the transmission area and is provided with a power receiving part, and the other end of the power input shaft is in the transmission area, and the power input shaft and the power output shaft are matched through a bevel gear transmission, and the power receiving part of the transmission mechanism 8 receives power and finally outputs it from the two power output parts.

[0026] A rotary tiller frame connecting area is arranged on both sides of the transmission area between the front support frame 2 and the rear support frame 3. The two rotary tiller frame connecting areas are respectively on both sides of the transmission area and also correspond to the opposite sides of the transmission box. Each rotary tiller frame connecting area is provided with a rotary tiller frame connecting mechanism 6 and a folding drive member connecting mechanism 7. The rotary tiller frame connecting mechanism 6 is used to connect the rotary tiller frame with the transmission box. The two power output parts of the transmission mechanism 8 are respectively in the two rotary tiller frame connecting areas to facilitate the transmission of power to the two rotary tiller frames. The folding drive member connecting mechanism 7 is used to install the folding drive member that drives the rotary tiller frame to rotate.

[0027] A reinforcement mechanism 9 is arranged above the transmission area, and the reinforcement mechanism 9 is used to improve the structural strength of the transmission box. The reinforcement mechanism 9 is connected to the top ends of the two side support frames 4, and an upper suspension connector 10 is arranged on the reinforcement mechanism 9; a reinforcement beam 11 is arranged at the front side of the front support frame 2, and a lower suspension connector 12 is arranged on the reinforcement beam 11. There are two lower suspension connectors 12, and the upper suspension connector 10 and the two lower suspension connectors 12 form a three-point suspension mechanism. The transmission box is connected to the tractor through the three-point suspension mechanism.

[0028] See also Figure 3 and Figure 4 When the transmission box of this embodiment is used in a light paddy field folding rotary tiller, the two rotary tiller frame connecting mechanisms 6 are respectively connected to the two rotary tiller frames 16, and the two folding drive member connecting mechanisms 7 are connected to the folding drive members 17. The telescopic parts of the folding drive members 17 are connected to the corresponding rotary tiller frames 16. Driven by the corresponding folding drive members 17, the rotary tiller frames 16 rotate between the unfolded position and the folded position relative to the connection with the transmission box.

[0029] See also Figure 1-Figure 3 The reinforcement mechanism 9 includes a supporting side frame, the top ends of the two side supporting frames 4 are connected to the supporting side frames, a connecting beam is arranged between the two supporting side frames, the connecting beam is connected to the two supporting side frames and the upper hanging connecting member 10 is arranged on the connecting beam.

[0030] Furthermore, the two supporting side frames are arranged obliquely, and the distance between the two supporting side frames gradually decreases from bottom to top. Looking from front to back, the reinforcement mechanism 9 is trapezoidal as a whole, and the connecting beam is connected to the top ends of the two supporting side frames. The number of connecting beams is preferably 2 or more.

[0031] The upper suspension connecting member 10 includes an upper suspension connecting plate, which is provided with a clamping hole, the shape of which is adapted to the cross-section of the connecting beam, the upper suspension connecting member 10 is perpendicular to the top plate 5, the connecting beam passes through the clamping hole and is connected to the upper suspension connecting plate, part of the plate surface of the upper suspension connecting plate is on the front side of the connecting beam, and the plate surface of the part located on the front side of the connecting beam is provided with an upper suspension connecting hole, the upper suspension connecting hole is used to connect to the tractor, and the upper suspension connecting holes are preferably 2 or more, so as to adapt to tractors of various specifications; part of the plate surface of the upper suspension connecting plate is on the rear side of the connecting beam, and the plate surface of the part on the rear side of the connecting beam is provided with a reinforcing rib connecting hole, the reinforcing rib connecting hole is used to connect the reinforcing rib, and the upper suspension connecting member 10 can be connected to structures such as the gearbox bottom plate 1 or the rear support frame 3 by means of the reinforcing rib, thereby strengthening the overall structural strength of the transmission box.

[0032] As a preferred embodiment, there are at least two upper suspension connecting plates, the plate surfaces of each suspension connecting plate face each other, the upper suspension connecting holes on each suspension connecting plate face each other, and the reinforcing rib connecting holes on each suspension connecting plate face each other.

[0033] See also Figure 1-Figure 4 The rotary tiller frame connection mechanism 6 includes a frame pin, the frame pin is connected to both the front support frame 2 and the rear support frame 3, a frame sleeve is arranged on the frame pin, the frame sleeve rotates relative to the frame pin, and a frame connecting piece is arranged on the frame sleeve. When used in conjunction with the rotary tiller frame, the rotary tiller frame is connected to the frame connecting piece, the rotary tiller frame is driven to rotate around the frame pin, and the front support frame 2 and the rear support frame 3 cooperate to carry the rotary tiller frame.

[0034] The folding drive member connection mechanism 7 includes a driving pin shaft, which is connected to both the front support frame 2 and the rear support frame 3, and a folding drive member connection position is provided on the driving pin shaft. When used in conjunction with the rotary tiller frame, a folding drive member is provided at the folding drive member connection position, and the folding drive member rotates relative to the driving pin shaft and its telescopic portion is rotatably connected to the rotary tiller frame.

[0035] See also Figure 1 and Figure 3 As a further embodiment, the front end surface of the front support frame 2 is provided with a reinforcement support plate 13 corresponding to each rotary tiller frame connection area, the frame pin of each rotary tiller frame connection mechanism 6 is also connected to the corresponding reinforcement support plate 13, and the drive pin of each folding drive member connection mechanism 7 is also connected to the corresponding reinforcement support plate 13, and a reinforcement connecting plate 14 is provided between the reinforcement support plate 13 and the reinforcement beam 11. The reinforcement support plate 13 and the reinforcement connecting plate 14 connected to the reinforcement beam 11 can improve the installation strength of the rotary tiller frame connection mechanism 6 and the folding drive member connection mechanism 7, thereby improving the overall strength of the transmission box.

[0036] The reinforcing crossbeam 11 is arranged at the front side of the front support frame 2, and the reinforcing crossbeam 11 is connected to the gearbox bottom plate 1. A reinforcing vertical plate 15 is arranged at the bottom of the gearbox bottom plate 1. The reinforcing vertical plate 15 is perpendicular to the gearbox bottom plate 1 and reinforces the gearbox bottom plate 1. The reinforcing vertical plate 15 is also connected to the reinforcing crossbeam 11.

[0037] In some embodiments, a hook connecting position is also provided on the driving pin shaft, and the hook mounting position is used to install a safety hook. A hook drive connecting plate is provided on the reinforcement bracket, and the hook drive connecting plate is connected to the connecting beam, each supporting side frame and each upper hanging connecting plate. The hook drive connecting plate can improve the connection strength between the reinforced connecting beam, each supporting side frame and each upper hanging connecting plate. A hook drive connecting position is provided at the corresponding hook connecting position on the hook drive connecting plate, and the hook drive connecting position is used to install a hook driving member, and the hook driving member is used to drive the safety hook at the hook mounting position to rotate, and when the rotary tiller frame rotates to the folding position, the safety hook can cooperate with the mating pin provided on the rotary tiller frame or the frame connecting member to lock the rotary tiller frame to the folding position.

[0038] In some embodiments, the lower suspension connecting member 12 includes a lower suspension connecting plate, which is arranged on the reinforcing beam 11. The lower suspension connecting plate is provided with a lower suspension connecting hole, which is used for connecting to the tractor. There are preferably two or more lower suspension connecting plates, and the plate surfaces of each lower suspension connecting plate are facing each other and the lower suspension connecting holes on each lower suspension connecting plate are facing each other.

[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 transmission box for a lightweight paddy field folding rotary tiller, characterized in that: The invention comprises a gearbox bottom plate (1), a front support frame (2), a rear support frame (3) and a side support frame (4); the gearbox bottom plate (1) is provided with a front support frame (2) and a rear support frame (3); the gearbox bottom plate (1) is provided with two side support frames (4) between the front support frame (2) and the rear support frame (3); the area above the gearbox bottom plate (1) defined by the front support frame (2), the rear support frame (3) and the two side support frames (4) is a transmission area; a top plate (5) is provided on the top of the transmission area; a rotary tiller frame connection area is provided between the front support frame (2) and the rear support frame (3) on both sides of the transmission area; each rotary tiller frame connection area is provided with a rotary tiller frame connection mechanism ( 6) and a folding drive member connecting mechanism (7); a transmission mechanism (8) is arranged in the transmission area, a power receiving part of the transmission mechanism (8) extends from a transmission hole on the front support frame (2) to the outside of the transmission area, and two power output parts of the transmission mechanism (8) extend from transmission holes on the two side support frames (4) to the corresponding rotary tiller frame connection area; a reinforcement mechanism (9) is arranged above the transmission area, the reinforcement mechanism (9) is connected to both side support frames (4) and an upper suspension connecting member (10) is arranged on the reinforcement mechanism (9), a reinforcement cross beam (11) is arranged on the front side of the front support frame (2), and a lower suspension connecting member (12) is arranged on the reinforcement cross beam (11).

2. The transmission box of a lightweight paddy field folding rotary tiller according to claim 1 is characterized in that: The reinforcement mechanism (9) comprises a supporting side frame, the top ends of the two side supporting frames (4) are connected to the supporting side frames, a connecting beam is arranged between the two supporting side frames, and an upper hanging connecting member (10) is arranged on the connecting beam.

3. The transmission box of the light paddy field folding rotary tiller according to claim 2 is characterized in that: The upper suspension connection member (10) comprises an upper suspension connection plate, a clamping hole is arranged on the upper suspension connection plate, a connection beam passes through the clamping hole and is connected to the upper suspension connection plate, and an upper suspension connection hole is arranged on the upper suspension connection plate at the front side of the connection beam.

4. The transmission box of the light paddy field folding rotary tiller according to claim 3 is characterized in that: A reinforcing rib connection hole is arranged on the upper suspension connection plate at the rear side of the connection beam.

5. The transmission box of the light paddy field folding rotary tiller according to claim 3 is characterized by: There are at least two upper hanging connecting plates, and the plate surfaces of the upper hanging connecting plates are facing each other.

6. The transmission box of the light paddy field folding rotary tiller according to claim 3 is characterized by: The rotary tiller frame connection mechanism (6) comprises a frame pin shaft, the frame pin shaft is connected to both the front support frame (2) and the rear support frame (3), a frame sleeve is arranged on the frame pin shaft, the frame sleeve rotates relative to the frame pin shaft and a frame connection piece is arranged on the frame sleeve; The folding drive member connection mechanism (7) comprises a drive pin shaft, the drive pin shaft is connected to both the front support frame (2) and the rear support frame (3), and a folding drive member connection position is provided on the drive pin shaft.

7. The transmission box of the light paddy field folding rotary tiller according to claim 6, characterized in that: A reinforcement support plate (13) is provided on the front end surface of the front support frame (2) corresponding to the connection area of ​​each rotary tiller frame, each frame pin shaft and each drive pin shaft are connected to the reinforcement support plate (13), and a reinforcement connecting plate (14) is provided between the reinforcement support plate (13) and the reinforcement cross beam (11).

8. The transmission box of the light paddy field folding rotary tiller according to claim 7, characterized in that: The reinforcement crossbeam (11) is arranged on the front side of the front support frame (2) and is connected to the gearbox bottom plate (1). A reinforcement vertical plate (15) is also arranged at the bottom of the gearbox bottom plate (1). The reinforcement vertical plate (15) is connected to the reinforcement crossbeam (11).

9. The transmission box of the light paddy field folding rotary tiller according to claim 6, characterized in that: A hook connection position is also provided on the driving pin shaft, and a hook drive connecting plate is provided on the reinforcement bracket. The hook drive connecting plate is connected to the connecting beam, the supporting side frame and each upper suspension connecting plate, and a hook drive connecting position is provided at the corresponding hook connection position on the hook drive connecting plate.

10. The transmission box of the light paddy field folding rotary tiller according to claim 1, characterized in that: The lower suspension connection member (12) comprises a lower suspension connection plate, the lower suspension connection plate is arranged on the reinforcement cross beam (11) and a lower suspension connection hole is arranged on the lower suspension connection plate.

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